Note: Descriptions are shown in the official language in which they were submitted.
CA 02352574 2001-07-03
73826-19D
1
WINDOW COVERING SYSTEM
This is a division of my co-pending Canadian Patent
Application No. 2,143,423 dated 17 August 1993.
Background of the Invention
This invention relates generally to window cover
systems and in particular to a pivot hinge for use therein.
Window cover systems use various cover materials such
as pleated or non-pleated fabrics or slats or blinds, and may
be vertically or horizontally oriented cover systems, that is,
those in which the pleats or blinds or slats are oriented
vertically or horizontally.
The term "window cover" is used here for convenience,
but with the understanding that my invention can be used to
CA 02352574 2001-07-03
2
cover other areas or openings, such as doorways. Also, fvr
convenience frequent reference is made to pleated fabric
window cover systems, but this reference is exemplary and
not limiting, for as indicated above the invention is
applicable to various materials, including non-pleated
fabrics and blinds. As shown in FIG. 2, the terms
"longitudinal width" (or simply "width") and "height" of a
window cover refer to the dimensions "w" and "h",
respectively.
b. Current State of the Relevant Art
Over the past several years, pleated shade systems
have become a popular form of window treatment. One
version of a pleated shade system available from Verosol
USA, Inc. of Pittsburgh, Pennsylvania, under the trademark
RIDEAU, utilizes a prepleated fabric with strong,
permanently set pleats which pack very tightly. The
Verosol fabric pleats are single pleats. Another version
of prepleated fabric is a dual pleated "hollow" fabric
recently introduced by the Window Fashion Division of
~iunter Douglas, Inc. of Hroomfield, Colorado, under the
trademark DUETTE. Graber, Inc. markets a CRYSTAL PLEAT
brand, dual hollow pleated fabric window cover. A seamed
pleated fabric cover is available from Verosol, USA, Inc.
under the trademark FINALE.
Several of these pleated fabrics work very well in
pleated shade systems because the pleats run horizontally
and the regularity of the pleats is controlled by the
weight of a board or other length of rigid material
fastened to the bottom edge of the area of pleated fabric.
A major problem associated with attempting to use the
prepleated material in vertical orientations is the
difficulty in providing uniform hanging of the pleats.
Because of the strongly set pleats, the material tends to
CA 02352574 2001-07-03
3
behave like a tension spring. The pleats have a spring
inherent bias toward the packed-together or closed state of
the fabric. When used in a vertical drape, this spring
force makes the material hang with uneven draping when the
drape is closed (i.e. the open state of the pleated fabric)
because the bottom portion of the material which is not
mechanically constrained tends to draw together. Thus the
pleats do not hang straight and the appearance is
unacceptable.
An additional problem occurs when the drape is being
traversed open (closed or packed state of the fabric) after
being left in a closed position for a length of time. The
pleats of the drape do not always pack consistently and
tend to distort out of the plane of traverse of the drape.
This makes it difficult to obtain a uniform pleating of the
drape as it closes and requires hand adjustment of the
individual pleats of the fabric.
Vertical blind systems are also popular window covers
and share some of the same problems. It would be
preferable to use the same string ladder spacing and
confining system in a vertical blind that is used in
horizontal blind. However, if a string ladder is used, the
weight of the ladder itself tends to distort the shape of
the overall blind, especially at the edges where the bottom
portions of the edge slats tend to be pulled inward.
Furthermore, when the vertical blind is traversed from a
closed to an open position, the slats tend to distort out
of the plane of traverse due to unevenness in the folding
of the string ladder material between slats.
My two recent patents, U.S. 4,858,668, issued August
22, 1989, entitled VERTICAL WINDOW COVERING SYSTEMS, and
its continuation-in-part, U.S. 4,915,153, issued April 10,
1990, also entitled VERTICAL WINDOW COVERING SYSTEMS,
disclose vertical cover support systems which are
CA 02352574 2001-07-03
4
especially adapted to overcome the above problems
associated with vertically mounted draperies and blinds.
Referring to FIGS. 1 and 55, in one preferred embodiment,
the vertical cover support systems disclosed in these
patents include an elongate mounting platform 2, which is
adapted for easy traverse along the system track 1, and
means 4 which extends through a slot in the bottom of the
traverse track for mounting a vertical drapery edge
stabilizer 3. The end of the window cover 5 is attached to
the rigid edge stabilizer member 3, which in turn is
rigidly mounted to the platform 2 by member 4 and is held
by the platform in a rigid vertical orientation to thereby
maintain the end of the drapery 5 or other. cover in a
precise vertical orientation. A cord tensioning
arrangement 6 maintains the cover in the vertical plane of
the system (the vertical plane extending downward from the
traverse track 1). Preferably the platform 2 is elongate
along the direction of the traverse track 1 and includes
spaced wheels 7-7 which are captured between top and bottom
rails of the track, thereby providing the combination of a
stable horizontal mounting platform for the vertical edge
stabilizer 3 and easy, finger-tip traversal along the
track. Other features may include a torque release
arrangement (not shown) for releasably mounting the edge
stabilizer to the platform 2 and allowing the edge
stabilizer to pivot when a predetermined sideways force is
applied, to prevent damage to the system.
Like all thing conceived by humans, the vertical cover
support systems disclosed in my above patents are not
perfect. Specifically, although the systems are quite
effective, it is desirable to have a system of even greater
simplicity and lighter weight which provides the stability,
ease of traverse and other improved characteristics
described in my above-described patents.
CA 02352574 2001-07-03
73826-19D
In addition to the vertical string ladder venetian
blind systems mentioned above, there are available non-ladder,
vertical blind cover systems comprising vertical slats which
typically are suspended from a top traverse track (the slats
5 are free at the bottom). These slats traverse open and closed
along the longitudinal width of the track and the individual
slats pivot about vertical mounting axes so that when the blind
array is partially or wholly closed across the window opening,
the slats can be pivoted open and closed in unison, similar to
the horizontal opening and closing of horizontal venetian
blinds.
The above vertical slat blind systems are not stable
and move undesirably, for example, when subjected to air
currents associated with heating or air conditioning outlets or
wind. The movement includes longitudinal swaying (along their
width, w, FIG. 2), distortion, which is in and out movement
transverse to the plane of the cover (the plane of FIG. 2), and
flutter, which is vibration about the vertical slat axis.
Quite obviously, such movements detract from the proper
function and enjoyment of the blinds, as well as their
durability. For example, vibration can cause rapid
deterioration of the blind mounting apparatus, damage to
adjacent walls, etc.
Summary of the Invention
In one aspect, the present invention provides a pivot
hinge, comprising: a flexible elongated strip having a
longitudinally-extending edge; a bead joined to the edge of the
flexible strip; and the bead having a transverse cross-section
configured for capturing the bead within an associated support
member, thereby allowing the flexible elongated strip to fold
back and forth relative to the bead.
CA 02352574 2001-07-03
73826-19D
6
The invention also provides a pivot hinge,
comprising: a flexible elongated strip having transversely
spaced, longitudinally-extending first and second edges; first
and second elongated beads extending along and joined to the
first and second edges of the flexible elongated strip; and the
transverse cross-section of the beads being configured for
capturing the beads within associated support members, thereby
allowing the flexible elongated strip to fold back and forth
relative to the beads.
In another aspect, the present invention is embodied
in~a window cover system, comprising: a horizontal traverse
track; an assembly of elongated vertically oriented slats
having longitudinal edges; a drape formed of flexible material
having vertical folds; a plurality of trolleys suspended from
the track for traversing movement along the traverse track and
for rotation; the slats being mounted to the trolleys for
rotating and traversing movement therewith to rotatably open
and close the slats and to open and close the slat assembly;
and hinge members mounting the drape at selected rear folds
thereof to the slats along selected front edges thereof for
traversing movement with the slats to open and close the drape.
The invention also provides a window cover system,
comprising: a horizontal track; an assembly of elongated
vertically oriented slats having longitudinal edges; a drape of
flexible material; the drape comprising vertical folds; a
plurality of trolleys suspended from the track for traversing
movement along the track and for rotation; the slats being
mounted to the trolleys for rotating and traversing movement
therewith for rotating the slats open and closed and for
traversing the slat assembly open and closed; selected slats
having a slot extending along the longitudinal edges thereof;
an elongated bead extending along and captured within the slot
of the selected slats; and a plurality of pairs of vertical
CA 02352574 2001-07-03
73826-19D
7
folds and slats, each said pair comprising (a) a selected slat,
(b) the bead captured by the selected slat, and (c) a vertical
fold of the drape joined to the bead captured by the selected
slat.
The invention further provides a window cover system,
comprising: a horizontal traverse track; a plurality of
trolleys suspended from the track for traversing movement along
the track; a window cover assembly comprising (1) an assembly
of elongated vertically oriented slats having longitudinal
edges and having slots along said edges, the slats being
mounted to the trolleys for traversing movement with the
trolleys along the track to open and close the slat assembly;
(2) a drape of flexible material comprising generally
vertically elongated, horizontally spaced-apart fold sections;
(3) elongated beads captured within the slats; and (4) means
joining the beads to associated drape folds such that the slats
support the flexible drape via the beads for traversing
movement with the slats, and the slats and the flexible drape
pivot back and forth relative to one another.
The invention still further provides a window cover
system, comprising: a horizontal traverse track; a plurality of
trolleys suspended from the track for traversing movement along
the track; and a cover assembly comprising (1) an assembly of
elongated vertically oriented slats having longitudinal edges,
the slats being mounted to the trolleys for traversing movement
with the trolleys along the track to open and close the slat
assembly; and (2) a drape of flexible material comprising
generally vertically elongated panels having first and second
vertically extending, horizontally spaced-apart fold sections;
at least the top region of a drape fold section being supported
by an associated slat at the top region of the slat, such that
opening and closing traversing movement of the slats imparts
opening and closing movement to the drape.
CA 02352574 2001-07-03
73826-19D
8
The present invention is embodied in a window cover
system which is suitable for vertical mounting of a cover such
as the SILHOUETTE blind and comprises a generally rectangular
frame having an upper horizontal frame-member and first and
second vertical frame-members. Roller means are attached to
the upper horizontal frame-member proximate the first vertical
frame-member. The roller means extends vertically downward
from the upper horizontal frame-member.
The system includes an elongated traverse track. The
traverse track is pivotally attached at a first end thereof to
a first point on the~upper horizontal frame-member proximate
said second vertical frame-member, and is attached in
translatable fashion proximate a second end thereof to the
upper horizontal frame-member at a second point on the
horizontal frame-member between the first point and the roller
means.
An exemplary box pleat blind comprises first and
second generally rectangular fabric panels attached together in
a face-to-face relationship and separated by a plurality of
vertically-oriented fabric strips. The first and second panels
are attached at one end thereof to respectively first and
second edges of a rigid vertical edge member. The edge member
is suspended in slidable and rotatable fashion from the
traverse track by a first slide member. The fabric panels are
attached at the other end thereof to the roller means, and are
suspended from the traverse track by a plurality of second
slide members, each thereof free to slide in the traverse track
and attached to a particular one of the fabric strips.
CA 02352574 2001-07-03
73862-19D
9 t;~-.
,1
A spacer tape is attached, at one end thereof, to the
first slide-member. The spacer tape is attached at the
other end thereof to the roller means, and attached at
generally regular intervals therealong to each of the
second slide-members. The spacer tape may be the same as
the support tape, that is, the spacer tape may be
substantially rigid longitudinally along the tape and
transverse to the plane of the tape and flexible in the
plane of the tape transverse to the tape.
IO Drive means are provided for operating the roller
means and traversing the edge-member, for rolling and
unrolling the panels onto and from the roller means,
thereby opening and closing the window cover system.
When the edge-member is traversed between open and
closed positions the edge-member is rotated such that the
separation between the first and second panels is
minimized. A downward-extending stop-member is attached to
the upper horizontal frame-member proximate the second
vertical frame-member. The stop-member is configured and
positioned such that when the edge-member is traversed in
a direction towards a closed position, the first edge
thereof contacts the stop-member. If the edge-member is
traversed further in the same direction, the edge-member is
caused to rotate such that separation between the fabric
panels is increased.
In another embodiment, the present invention is
embodied in a horizontal roller blind system, comprising a
track means; a box blind comprising a plurality of
longitudinal vanes or box pleats extending generally
horizontally and opposite, top and bottom ends; a roller
having a top end of the box blind attached thereto; means
rotatably mounting the roller to the track in a generally
horizontal orientation, for winding the box blind on the
roller and unwinding the box blind from the roller to raise
CA 02352574 2001-07-03
73862-19D
and lower the box blind; a pleated blind having opposite,
top and bottom ends and generally horizontal oriented
pleats, the pleated blind being mounted at the top end
thereof to the track adjacent the box blind such that the
5 plane of the pleated blind and the plane of the box blind
are generally side by side; an elongated rail attached to
and positioning the bottom ends of the box blind and the
pleated blind side by side; and at least one cord means
attached at one end to the roller and at an opposite end to
10 the rail and routed through or along the pleated drape, for
winding and unwinding the cord to raise and lower the box
blind and the pleated drape. The elongated rail is of. or
includes sufficient weight to lower the box blind and the
pleated drape in unison when the cord means is unwound. The
arrangement orients the vanes generally horizontally in the
dimension transverse to the longitudinal dimension of the
vanes, and the rail pivots and flattens the box pleats
during raising of the blinds, thus facilitating flat
storage of the box blind on the roller.
In yet another embodiment, the present invention is
embodied in a tape supported, wheel assisted window cover
system, comprising a horizontal track; a window cover
having at least on free end; means for mounting the window
cover to the track for traversing the at least one end open
and closed along the track; at least one transverse
housing member having an internal compartment and mounted
along the free end of the window cover and extending
transverse to the track; tape means comprising first and
second, upper and lower tapes routed through the upper and
lower sections of the window cover and into the compartment
of the transverse housing member; containment means for
routing the tapes through the cover in the direction of
elongation of the traverse track; and upper and lower
support wheels rotatably mounted within the compartment of
the transverse housing member. The lower tape can be
routed over the lower support wheel and the tapes then
CA 02352574 2001-07-03
73862-19D
11
routed together over the upper support wheel and the ends
of the tape are tied together, for ensuring movement of the
tapes in unison into and out of the compartment, to effect
push and pull action by the tapes and provide positive
traversing displacement of the cover and maintain the
alignment of the cover relative to the track as the tapes
move into and out of the compartment. In a related aspect,
the supporting tape arrangement is adapted for widening
the length of traverse of the cover in that sections of the
tapes at the ends thereof comprise magnetizable material;
elongated magnetic containment means is mounted within the
housing compartment .for releasably capturing the ends of
the tapes when the tapes are wound into the compartment and.
releasing the tapes when the tapes are withdrawn from the
compartment; and a traveler unit slidably captures the tied
tapes intermediate the containment means and the support
wheel, and pulls the intermediated section of the tapes
downward for maintaining the tapes in an elongated
configuration to facilitate capture and release by the
containment means.
The present invention is also embodied in a tape
supported, dual sprocket-assisted window cover system,
comprising a horizontal track; a window cover having at
least on free end; means for mounting the window cover to
the track for. traversing the at least one end open and
closed along the track; at least one transverse housing
member having an internal compartment and mounted along the
free end of the window cover and extending transverse to
the track; tape means comprising first and second, upper
and lower tapes routed through the upper and lower sections
of the window cover and into the compartment of the
transverse housing member; containment means for routing
the tapes through the cover in the direction of elongation
of the traverse track; and upper and lower sprockets
rotatably mounted within the compartment of the transverse
housing member. The tapes contain slots therein and the
CA 02352574 2001-07-03
73862-19D
12
lower tape is routed over the lower sprocket and the upper
tape is routed over the upper socket such that the slots
are engaged by the sprockets for moving the tapes into and
out of the compartment, to effect push and pull action by
the tapes and reversibly traverse the free end of the
window cover along the .track. The system includes means
interconnecting the upper and lower sprockets; and means
for reversibly rotating the interconnecting means to rotate
the sockets in unison for driving the tapes into and out of
the compartment in unison, such that the associated free
end of the window cover is traversed reversibly along the
track, whereby the tapes maintain positive displacement of
the cover during traversal and maintain the alignment ~of
the cover relative to the track. In related aspects, the
system mny comprise transverse housing members mounted
along each end of the window cover; both. ends of the window
cover are free to traverse along the track; and upper and
lower sockets, interconnection means and drive means are
mounted on each of the transverse housing members.
In the present invention, the tape provides the
support and alignment functions previously supplied by
hardware if at all. As. a result, hardware can be
eliminated and the system including edge support or
. containment members can use lightweight components of
material such as plastic. The lightweight, simplified,
readily manufacturable and assembled system is easy to
install and to operate, yet is resistant to flutter,
vibration, etc. and provides complete displacement or
transfer of top and bottom sections and vice versa and thus
accurate squaring and alignment during traversal of the
window cover.
Brief Description of the Drawings
The accompanying drawings, which are incorporated in
and constitute a part of the specification, schematically
CA 02352574 2001-07-03
73862-19D
13
s
illustrate preferred and alternative embodiments of the
invention and, together with the general description given
above and the detailed description of the preferred
embodiment given below,_serve to explain the principles of
the invention.
FIG. 1 is a schematic front elevation view, and FIG.
55 is an enlarged partial section thereof, depicting a
vertical cover system disclosed in my incorporated patents,
U.S. 4,858,668 and 4,915,153.
. FIG. 2 is a schematic front elevation view which
depicts a vertical cover system incorporating features~of
the present invention.
FIGS. 3 and 4 are front and rear perspective views,
respectively, of a vertical hollow pleat embodiment of the
present invention.
FIG. 5 is a partial perspective view depicting a flat
tape version of the hollow vertical pleat drapery
embodiment of FIGS. 3 and 4.
FIG. 6 is a horizontal sectional view taken along line
6-6 in FIG. 5.
FIGS. 7 and 9 are, respectively, a partial perspective
view and a partial front elevation view Which depict a
curved tape version of the hollow vertical pleat drapery
embodiment of the present invention.
FIG. 8 is a horizontal sectional view taken along line
8-8 in FIG. 7.
FIGS. 10, 11 and 12 are front elevation views showing
additional features and other embodiments of the present
invention.
CA 02352574 2001-07-03
73862-19D
14
FIG. 13 is a perspective view'of a dual traverse
sprocket-assisted system embodiment of my tape-supported
cover system.
FIG. 14 is a simplified schematic depiction of the
sprocket-timed dual tape support system used in the cover
system of FIG. 13.
FIG. 15 is a relatively enlarged, perspective view of
the sprocket arrangement of FIGS. 13 and 14.
FIG. 16 is a partial perspective view of one of the
vertical upright edge support members or housings of FIG.
13.
FIG. 17 is partial, perspective view of an
alternative, wheel or pulley control arrangement.
FIGS. 18 and 19 are respectively a front elevation
view of the system of FIG. 13 showing the sprocket-
controlled cover in the closed (drapery expanded) condition
and a partial, front elevation view showing the sprocket-
controlled cover in the open (drapery bunched) condition.
FIG. 20 is a front elevation view depicting the cover
open condition of a single edge support member alternative
to the arrangement of FIG. 13.
FIG. 21 is a partial front elevation view depicting
the drapery closed condition of the system of FIG. 20.
FIG. 22 is a partial front elevation view depicting
the converse of the FIG. 20 arrangement, that is, a system
in which the master or sprocket-containing upright is
movable and the non-sprocket-containing upright is
stationary.
CA 02352574 2001-07-03
73862-19D
FIG. 23 depicts an embodiment iin which the tape is
oriented on edge (vertically) in the section routed through
the drapery material.
FIGS. 24 through 27 depict the use of my tape support
5 in conjunction with vertical drapery systems which
incorporate various pleated materials.
FIGS. 28, 29 and 30 are, respectively, a front
perspective view, a rear perspective view and a relatively
enlarged, partial front perspective view, partially cut
. 10 away, all of an embodiment in which a tape support system
and a vertical pleated silhouette drape are combined with
a conventional vertical blind system to form a vertical
pleated silhouette blind system.
FIGS. 31 through 34 are top plan views of the combined
15 vertical pleated silhouette blind system shown in FIG. 28,
with the traverse track removed, showing the operation of
the system.
FIGS. 35 and 36 are vertical sections (FIG. 35 is
essentially an end view) taken along lines 35-35 and 36-36
in FIG. 31.
FIG. 37 depicts a representative slat from the system
of FIGS. 28-30 and associated mounting details.
FIG. 38 is a partial front elevation view, partially
cut away, of an alternative embodiment of the combined
vertical pleated silhouette blind system shown in FIG. 30,
which incorporates a pivotal-link tape-support arrangement
for routing the tape through the blinds.
FIGS. 39 and 40 are horizontal sectional views of an
end stiffener useful in the system of FIG. 38.
CA 02352574 2001-07-03
73862-19D
16
FIGS. 41 and 42 are side and endtelevation views of a
pivotal link support member.
FIG. 43 is a top view of the member of FIG. 41.
FIG. 44 is a partial perspective view of a slat
illustrating the mounting relationship of the slat, the
pivotal link support member and the tape.
FIG. 45 and 46 are horizontal views of different open
and closed conditions of the system of FIG. 38,
illustrating the pivotal operation of the pivotal link
support~members during opening and closing, of the off-
center-mounted slats.
FIGS. 47 and 48 are front perspective views
illustrating the closed and open condition of a vertical
blind which incorporates a combination tape and telescopic
link support system.
FIG. 49 is a partial perspective view of a slat of
FIG. 47 and 48, illustrating the mounting relationships
among the slat, the pivotal support member, the tape and
the link ( s ) .
FIG. 50 is a side elevation view of one of the pivotal
support members of FIG. 47, illustrating the mounting
relationships among the member, the tape and the link(s).
FIG. 51 is a top view of the pivotal support member of
FIG. 50.
FIGS. 52, 53 and 54 are partial horizontal views (in
the manner of horizontal section views) of different open
and closed conditions of the system of FIGS. 47 and 48,
illustrating: both the blind system and the slats in an
open condition (FIG. 54); the blind system closed
CA 02352574 2001-07-03
73862-19D
17
(extended) and the slats open (FIG. 52); and both the blind
system and the slats closed (FIG. 53).
FIG. 56 is a perspective view schematically
illustrating one embodiment of a Shutter Drape window cover
system in accordance with the present invention.
FIG. 57 is a rear perspective view, partially cut
away, of FIG. 56 illustrating an arrangement for suspending
an edge member from a traverse track in the Shutter Drape
window cover system of FIG. 56.
FIGS 58 and 59 are respectively perspective and plan
views schematically illustrating a foldable, hollow
spacer-member attached to adjacent edge-members of the
SHOTTER DRAPE cover system of FIG. 56.
FIG. 60 is an exploded perspective view schematically
illustrating the spacer member of FIGS 58 and 59.
FIGS 61 and 62 are respectively assembled and exploded
cross-section views seen generally in the direction 61-61
of FIG. 58 and schematically illustrating a hinge
arrangement for attaching a slat to an edge-member of FIG.
58.
FIG. 63 is a perspective view schematically
illustrating the hinge arrangement of FIGS 61 and 62.
FIGS 64 and 65 are respectively perspective and plan
views schematically illustrating a preferred arrangement of
traverse tapes extending through horizontal slots in the
edge-members and foldable spacer-member of FIG 58.
FIGS 66 and 67 are respectively perspective and plan
views schematically illustrating a Shutter Silhouette
CA 02352574 2001-07-03
73862-19D
18
:s
pleated window cover material attached to edge-members of
FIG. 58.
FIG. 68 is a horizontal cross-section view of the
assembly of a slat to an alternative flat edge member and
FIG. 69 is a perspective of an alternative foldable hinged
spacer member adapted for attachment to the flat edge
member. -
FIG. 70 is a perspective view schematically
illustrating another embodiment of a SHUTTER DRAPE window
.cover system in accordance with the present invention.
FIG. 71 is a perspective view schematically
illustrating yet another embodiment of a window cover
system in accordance with the present invention, a Vertical
Silhouette cover system comprising a vertical box pleat
drape.
FIG. 72 is a perspective view schematically
illustrating details of a drive mechanism and a traverse
track mounting method for the Vertical Silhouette window
cover system of FIG. 71.
FIG. 73 is a cross-section view seen generally in the
direction 73-73 of FIG. 8 schematically illustrating
further details of the drive mechanism of FIG. 72.
FIG. 74 is an exploded perspective view schematically
illustrating details of attaching an edge-member of the
Vertical Silhouette window cover system of FIG. 71 to the
drive mechanism of FIG. 72.
FIGS. 75A-F are plan views schematically illustrating
operating details of the drive mechanism of FIG. 72.
CA 02352574 2001-07-03
73862-19D
19
t
FIG. 76 is a perspective view schematically
illustrating yet another embodiment of a window cover
system, a Horizontal Pleated Silhouette window cover
system, in accordance with the present invention.
FIGS. 77 and 78 are vertical cross-section views of
the FIG. 76 Horizontal Pleated Silhouette window cover
system.
FIG. 79 is an enlarged partial perspective view of the
Horizontal Pleated Silhouette window cover system of FIG.
76.
FIG. 80 is a front perspective view, partially cut
away, of a window cover system incorporating a dual
sprocket tape drive system in accordance with the present
invention.
FIG. 81 is an enlarged view of the bottom right side
of the dual sprocket tape drive system of FIG. 80.
FIGS. 82-85 depict alternative embodiments of the dual
sprocket tape drive system of FIG. 80.
FIG. 86 is a front elevation view, partially cut away,
of an end section of a window cover system including a dual
tape drive system in accordance with the present invention.
FIG. 87 is an enlarged front elevation view of an end
section of A window cover system including a dual tape
drive system of FIG. 86.
Detailed Description of the Preferred
Embodiments)
a) overview of Tape-Supported Window Cover System 18
CA 02352574 2001-07-03
73862-19D
FIG. 2 is a schematic depictiion of certain basic
features of my new tape-based PLEATOUETTE window cover
system, which is an improvement of the vertical window
cover system disclosed in my above referenced '668 and '153
5 patents. FIG. 2 illustrates a single traversing system 18
in which the left end of the window cover 15 (such as a
single pleat or hollow pleat drape) is immobile and the
right end of the window cover is free to bidirectionally
traverse between open and closed positions. (Please note,
10 when the drapery or other cover is open, exposing the
window, the material itself is closed (bunched); when the
cover is closed, cover the window, the material itself is
open. A member such as a flat. support tape 20 which
preferably is longitudinally rigid (along direction 1),
15 transversely rigid orthogonal to 1 and the plane of the
cover, and transversely flexible (along direction d) can
replace a number of components of the systems disclosed in
the '668 and '153 patents. These include the cord
alignment system 6, FIG. 1, and the edge stabilizer system,
20 including the horizontal platform 2 and the spaced support
wheels 7-7 or other elongate support captured at spaced
points by the traverse track, and the rigidly mounted edge
stabilizer member 3. The exemplary system 18 includes
means such as standard trolleys 22 for mounting the cover
15 at spaced intervals for traversal along track Z1 and
tape containment means 24 which constrains movement of the
flexible tape in the transverse direction d.
In the exemplary single traversing embodiment depicted
in FIG. 2, the overall tape containment means 24 comprises
three constituent containment means or sections 27, 28, and
29 for the three sections 20C, 20D, and 20E of the S-shaped
path of the tape. Each of the containment means performs
at least two functions. The illustrated lower horizontal
containment means 27 comprises support means such as
horizontal slots 31-31 (see FIGS. 24 and 25) formed in the
drapery material or in tabs attached to the material for
CA 02352574 2001-07-03
73862-19D
21
capturing and routing the lower horizontal tape section 20C
through the drape generally in the direction of traverse.
Typically, the slots can be spaced apart several inches,
which is the maximum spacing between adjacent pleats. In
capturing the tape 20, the containment means 27 also
contains the tape. The contained tape maintains the drape
or other cover I5 in the desired vertical plane, extending
downward from the traverse track 21 and prevents
distortion. That is, the tape performs the alignment
function of the cord alignment system 6.
The exemplary containment means 28 depicted in FIG. 2
comprises a vertical, elongated .hollow housing member or
stiffener 32, FIG. 5 (also called an edge or end support
member), preferably of lightweight material such as
plastic, which is attached proximate the free (right) end
of the cover material. The containment means 28 routes the
vertical tape section 20D between the bends 46 and 47 which
separate lower horizontal section 20C, vertical section 20D
and upper horizontal section 20E, and contains the vertical
section 20D of the tape. This containment means maintains
the traversing (free) end of the cover material i5 in an
accurate vertical orientation and cooperates with the
containment means 27 to maintain the alignment of the cover
material 15 within the desired plane extending vertically
downward from the track 21.
Containment means 29 releasably contains the upper
horizontal section 20E of the tape 20 along the traverse
track 21. In a preferred embodiment, the upper horizontal
containment means 29 comprises suitable means for providing
a force of sufficient magnitude to normally hold the
magnetic or magnetizable tape 20 (that is, a tape of
material which is attracted to the magnetic containment
strips) flat against the traverse track 21, but small
enough that the tape is easily released. Preferably, this
containment means is adhesive magnet tapes or adhesive
CA 02352574 2001-07-03
73862-19D
22
''s
magnet strips 3 3-3 3 , FIG . 5 , which are mounted along the
bottom of the track 21 for magnetically holding the tape 20
adjacent the track, for releasing the tape when the window
cover is traversed to the right, that is toward or into a
closed condition, and for re-engaging the tape when the
window cover is moved to the left, toward or into an open
condition. The adhesive magnets 33-33 may be a
commercially available type which are marketed for mounting
on appliances such as refrigerators for displaying or
attaching messages.
Referring further to FIG. 2, the longitudinally
relatively rigid, transversely relatively flexible tape 20
and the containment means 24, especially the releasable
containment means 29, permit easy bidirectional traverse
and positive, accurate, "100% displacement" between the
horizontal sections 20C and 20E of the tape. A length of
the horizontal section 20C or 20E of the tape which is
adjacent the bend 46 or 47 and is equal in length to the
distance traveled by the traversing end of the window cover
15 is accurately and fully transferred from one horizontal
section 20C or 20E to the other section 20E or 20C. Thus,
as the window cover 15 is traversed to the right (or to the
left) a given distance/dimension, the length of upper
horizontal tape section 20E decreases (increases) and the
length of the bottom horizontal section 20C increases
(decreases), both by that dimension. This accurate and
full transfer or displacement maintains the accurate
vertical orientation of the tape 20D, and, thus, of the
free end of the window cover material, maintains the bottom
and side of the tape square, and precisely preserves the
containment and alignment functions of the containment
means 27.
In addition, unlike cord systems, which are able only
to pull a window cover, because of its longitudinal
rigidity, the contained tape 20 both pushes and pulls the
CA 02352574 2001-07-03
73862-19D
23
't
window cover. The containment 24 means keeps the tape from
"exploding" like a speedometer cable or a tape measure,
that is, from displacing transversely, and enables the push
and pull power. In combination, the tape and containment
means provide light weight, simple, easy traversing
construction without components such as the cord alignment
system 6, FIG. l, and the edge stabilizer system, FIG. 1
(the elongated horizontal platform 2 with spaced support
points 7-7 captured by the traverse track 1 and the rigid,
rigidly mounted elongated edge stabilizer member 3).
Preferably the_tape 20 and the other tapes discussed
here are magnetizable metal tapes and, in fact,. steel tapes
of the type used in retractable tape measures have been
used. Other types of tape include but are not limited to
plastic coated metal tapes and plastic tapes.
To date, and referring for example to FIGS. 5 and 7,
I have used flat tapes ZO (tapes of straight or flat
profile in the transverse plane perpendicular to the
longitudinal direction, 1; see FIG. 5) , as well as tapes
120 which are cooed (of concave transverse profile; see
FIG. 7). The cooed tapes (also called cupped or concave
tapes) are preferred in part because they bend more easily
than flat tapes and with less resistance to movement around
bends when the cove faces radially inward at the bend.
Cooed tapes also provide great push and pull energy. This
effects both opening and closing the cover and facilitates
positive full displacement of the tape and the associated
cover and maintaining the desired vertical orientation at
all times, including during traversal.
For example, I have used steel tapes 1/4" (inches) to
1" in width by 0.006" to 0.010" thick to support hollow
pleat DUETTE window covers about 96" long by 120" wide (or
greater).
CA 02352574 2001-07-03
73862-19D
24
s
b) Tape-Supported Hollow Pleat (DUETTE) System 118
FIGS. 3-8 depict various embodiments of a hollow pleat
window cover system constructed in accordance with my
invention. FIGS. 3 and 4 illustrate a dual traversing
mounting arrangement 118 in which both ends of the
prepleated hollow pleat drape 115 are free to traverse.
Illustratively, the tape 20 is flat and the ends of the
window cover are attached to housing or stiffening members
32. As shown in FIG. 4, in this embodiment, the tape
containment means 24 comprises five sections 25-29.
Containment means section 25 is the equivalent . of
previously discussed section 29. Both comprise the magnet
strips 33-33 which are attached to the bottom side of the
track 21 on opposite sides of the window cover 115.
Containment means section 26 is the equivalent of section
28, and comprises the hollow housing members 32.
Containment section 27 comprises horizontal slots 31-31
(FIG. 24) formed in the hollow pleat fabric, as described
previously. The containment means 27 functions as
described previously in cooperation with the left and right
containment means 26 and 28 to provide full displacement
between tape sections 20A and 20E, respectively, and the
horizontal tape section 20C, when the left or right end of
the window cover 115 is traversed.
As alluded to previously regarding the FIG. 2
embodiment, the metal tape push and pull and the full
displacement keeps the window cover such as 15 and 115, 90°
square when the cover is in repose (stationary), yet
effects flexible support for the window cover such that the
window cover can be displaced laterally and in and out of
the vertical plane without damage.
FIG. 5 also depicts a standard trolley 22 of the type
which may be used in the various embodiments of my
invention. The trolley 22 comprises a roller carriage
CA 02352574 2001-07-03
73862-19D
s
portion 36 which includes a pair of wheels spaced apart
transversely across the width of the track 21, and a hanger
37 which extends vertically from the carriage 36 through
the bottom slot 38 in the generally C-shaped track 21
5 cross-section, and attaches to a stabilizing strip 39 (not
shown) mounted on the window cover material I18. Note,
typically the trolley 22 need not be elongated, and need
not comprise longitudinally spaced support points such as
wheels.
10 FIGS. 5 and 6 also depict various details of the
system 118 including immobilizing means 41 such as set
.screws which secure the opposite ends of the dual
traversing tape to the bottom side of the traverse track
21. Strip magnets 33-33 are adhered to the bottom side of
15 the traverse track 21 on opposite sides of the tape. A
tape brake arrangement 42 comprises a magnetic or non-
magnetic brake pad 43, the position and associated braking
action of which is controlled by a thumb screw 44 extending
through the sidewall of the housing 32.
20 As shown in FIG. 6, the end of the fabric 15 is
attached by attachment means such as a snap-on to the
housing 32. Also, the housing 32 conveniently has a
rectangular bore 48 to accommodate the flat tape 20.
FIGS. 7 and 8 depict relevant details of a version of
25 the hollow pleat system 118 which incorporates a curved or
cooed tape 120. As mentioned previously, the concave tape
120 is oriented with the cup facing radially inward at the
bottom and top turns such as 46 and 47. To accomplish
this, the tape is rotated or twisted 180° within the hollow
member or stiffener 132 and that member preferably has an
internal passageway or bore 148 of circular cross-section
to permit the tape to continuously reorient without
obstruction during traversing movement.
CA 02352574 2001-07-03
73862-19D
26
FIG. 9 illustrates additional details of the
construction of the trolleys 22. The trolleys 22 which
support the intermediate sections of the cover 15 are
constructed as described previously. The end trolley 22
preferably includes or is mounted to a clip 40 which is
mounted over the upper end of the housing sidewall. Please
note, as illustrated in FIG. 9, end trolley 22 need only
support the vertical edge housing member 32 or 132 for
traversing along the traverse track 21. It is unnecessary
for end trolley 22 to provide a stable horizontal platform
or to rigidly orient a rigid edge stabilizer member to
achieve the desired stable vertical orientation. As
discussed above, the tape and the tape containment means
perform these functions.
FIGS. 10, 11 and 12 disclose additional details and
embodiments of the cover systems such as 18 and 118 and the
systems described subsequently. Specifically, FIG. 10
depicts a dual traversing arrangement which uses separate
top and bottom tapes 20 (or 120 or 220). Each tape
comprises five sections 25-29. This two-tape system
provides additional stabilization of the drape 15
intermediate the top and the stabilized bottom. Wands 41
are used for opening and closing the two free ends of the
cover. The drape depicted in FIG. 11 is fixed at the right
end and incorporates an S-tape, a three-section tape
containment means, and a wand 41 for traversing the left
end. Finally FIG. 12 depicts a dual traversing system
comprising a single tape and a four-section tape
containment means. The tape 20 (120) is coiled within the
right side upright 3 of the type depicted in prior art FIG.
1 and is secured at its end within the upright, for example
by a peg or screw 42. The tape coils and uncoils during
traversal of the right upright 32 relative to the left
upright 32, which is also free to traverse. Alternatively,
of course, one of the uprights could be stationary.
CA 02352574 2001-07-03
73862-19D
27
s
FIG. 23 illustrates an alternative tape mounting
arrangement in which the tape is held on edge, vertically,
by the containment means 27, for example by a bracket or
tape guide 52 mounted to the bottom of the housing 32 and
having a vertical slot 54 therein, and by vertical slots
56-56 in the fabric. This embodiment is particularly
useful for covers having relatively narrow pleats.
Alternatively, in such situations I have used a relatively
narrow, plural ply (plural layer) tape or a relatively
thick narrow tape.
c) Sprocket-Controlled, Tape-Support Cover System 8
FIGS. 13 through 22 depict a dual traverse (both ends
free to traverse) embodiment 8 of my tape-supported cover
system which uses top and bottom tapes 220T and 2208 and a
pair of opposite end top sprockets 9-9 which ensure that
both tapes are displaced in unison at the same velocity.
This maintains the accurate vertical orientation of the
bidirectionally traversing drape support
uprights/housings/edge members/end members 32 and 132 and
232 and the cover drape 15 which is attached to the
uprights.
As shown in particular in FIG. 14, one sprocket 9 is
mounted for rotation in the top interior of each housing
32. The bottom tape 220B forms a generally U-configuration
which bends around the sprockets at each end, with an
overhanging section at each end. This tape is contained
by: left side vertical tape containment section 26 (channel
12 defined between the medial side wall of upright 32 and
a spaced upright member 13); horizontal drape containment
section Z7 (drapery slots 31-31); and right side vertical
tape containment section 28 (channel 12). The top tape
220T forms a generally inverted U-configuration which is
supported at the bends of the U by the sprockets and is
CA 02352574 2001-07-03
73862-19D
28
contained along the base by the horizontal drape-defined
containment section 27 (drapery slots 31-31). Each
sprocket 9 is mounted on a shaft or the like which allows
free rotation of the socket.
Containment means 25S and 29S in the form of curved
fenders or guides having an interior configuration which
'closely matches the external periphery of the sprockets,
are mounted adjacent the sprockets, for retaining the tapes
on the sprockets. The guides 25S and 29S may have grooves
formed along their internal periphery which allow the
sprocket teeth to rotate 10-10 therealong and. thus permit
~a snug fit between the guides and the sprockets and the two.
tapes.
As indicated in particular in FIGS. 14 and 15, the top
tape 220T overlies the bottom tape 220B. Slots 11-11
formed in each tape are of equal pitch/spacing and are
engaged by teeth 10 of the sprockets 9-9 so that movement
of either end vertical housing member 32 (typically
manually controlled movement utilizing a wand, not shown,
on the chain 12, FIG. 13, described below) in either the
cover opening or closing direction causes the tapes 220T
and 2208 to wind and unwind in unison at equal velocity
over the associated sprocket 9. As the result of this
equal velocity movement, the tapes are maintained taut
along the sections of the containment means. The push and
pull force exerted by the tapes maintains the desired
vertical orientation of the upright 32 and the attached
drape 15 during movement. That is, the top and bottom tapes
220T and 2208 displace equally, and there is no movement of
the top of the upright 32 and attached drape 15 relative to
the bottom thereof, or vice versa. That is, square
orientation is maintained without the releasable magnetic
containment means and without tying the tape ends together
or to a f fixture .
CA 02352574 2001-07-03
73862-19D
29
FIG. 13 also de icts an o tional
P p , preferred drive
arrangement comprising a second sprocket 13 mounted to the
sprocket 9 on the rotational axis 14 of the latter sprocket
and having a drive chain 12 mounted thereon. Pulling in
opposite directions (on opposite sides) of the chain 12
drives the sprocket 9 and the tapes together, in opposite
directions, to open and close the cover. A low ratio gear
arrangement provides very easy, smooth opening and closing
movement. Alternatively, a motor drive can be used and a
remote controlled, time controlled, etc. drive can be used.
FIG. 17 depicts an alternative sprocket arrangement in
which the toothed sprocket 9 is replaced by a non-toothed
idler pulley 16. The controlled, equal velocity
displacement of the top and bottom tapes 220T and 2208 is
maintained by fastening the tapes together at each end, for
example, by means 14 such as a rivet or a screw.
FIG. 18 depicts the cover 15 closed condition (drapery
material open) while FIG. 19 depicts the cover open
condition (drapery material closed or bunched) of the dual
traversing system 8 depicted in FIGS. 13 through 17.
FIGS. 20 through 22 depict various alternative
embodiments of the sprocket-timed cover system 8. The
toothed sprocket 9 is depicted in each of these
alternatives. However, those of usual skill in the art
will understand that the FIG. 17 pulley arrangement can be
used as well, preferably with tied ends.
FIG. 20 depicts the cover closed condition (drapery
material open) of a system comprising a fixed master end
housing or upright 32 containing the idler sprocket
arrangement and a bi-directionally traversing opposite end
comprising, for example, a simple trolley 22-mounted
upright member 132, such as a slat, to which the movable
drapery end is attached.
CA 02352574 2001-07-03
73862-19D
3.0
FIG. 21 depicts the cover open condition (drapery
material closed or bunched) of the cover arrangement of
FIG. 20.
Finally, FIG. 22 depicts the converse of the
arrangement of FIGS. 20 and 21. That is, the non-sprocket
upright 132 is immobile and the master, sprocket-containing
traversing upright 32 is supported on the traverse track by
a pulley 22 or using the elongated, rigid platform system
of FIG. 1. Various other alternatives will readily occur
to those of usual skill in the art, including dual
traversing systems which use an upright 32 to support one
end of the cover material and upright 132 to support the
opposite end.
d) Tape-Supported Pleated Covers in General
FIGS. 24 through 27 illustrate the use of my tape
support depicted in FIGS. 2-12 in combination with various
pleated covers. FIG. 24 depicts the use of a horizontal
tape to support a hollow pleated fabric cover 115 such as
the DUETTE cover. FIG. 25 depicts a horizontal tape and a
dual hollow pleated cover 215 such as that available from
Graber, Inc. under the tradename CRYSTAL PLEAT. FIG. 26
illustrates a vertical tape and a seamed pleated cover 315
such as the FINALE cover available from Verosol, USA, Inc.
FIG. 27 depicts a vertical tape and a cover 415 comprising
a back to back, semi-hollow arrangement of FINALE covers.
As alluded to above, a horizontal tape can be substituted
for vertical tape in most relatively narrow pleat covers
(such as those shown in FIGS. 16 and 27) by using a
correspondingly relatively narrow, relatively thick or
plural ply tape.
e) Tape-Supported Vertical Pleated Fabric & Blind System
218
CA 02352574 2001-07-03
73862-19D
31
a
FIGS. 28_through 30 are, respectively, a front elevation
view, a rear elevation view, and a partial rear elevation
view, partially cut away, illustrating a tape-supported
vertical pleat SILHOUETTE blind window cover system 218.
This system combines a tape support system 20 with a
vertical single pleated drape 15 and a vertical venetian
blind assembly 50. The system is adapted so that movement
of the drapery during pivotal opening and closing movement
of the associated blind slats is accommodated without
interfering with the opening and closing movement. The
conventional blind assembly 50 comprises vertical slats 52
.suspended by ratatable~hangers 54 from a~drive means 57
mounted within the traverse track 21. Conventionally, a.
gear wheel 56 is mounted at the upper end of the hangers 54
and engages drive means 57 so that the gears and blinds are
reversibly rotated open and closed by pulling on the
opposite sides of the chain pull 58. Traverse cord assembly
60 is mounted at the traversing free end of the blind and
is used to pull the blind and attached drape open and
closed.
The system 218 is a single traverse system in which
the left drapery end (FIG. 28) is free to traverse. The
system incorporates a three section tape 20 (or 120), and
tape containment means 24 comprising three corresponding
containment means 25, 26 and 27. Alternatively, the system
can be arranged to move at the right end, at either end,
and/or at the middle.
In the illustrated system 218, the blinds at the ends
are replaced by generally elliptical, double convex
vertical edge support members 62. The curvature of the
edge support members approximates that of the slats 52,
thereby providing a pleasing uniform appearance. In the
illustrated single traverse system, the left end member 62
serves as the containment means 26 for the free left end of
the drapery 15. Also, both ends of the drapery are wrapped
CA 02352574 2001-07-03
73862-19D
32
around the associated members 62 and 62 to provide an
enclosed, pleasing appearance.
As shown in FIG. 37, the slats 52 are pivotally
suspended and supported by off-center supports such as the
aforementioned trolleys. Hinges 64 are attached to the
slats 52 for supporting the drapery 15. The hinges 64
comprise a snap-on slotted member 66 having a tab 67
therein which mates with a vertical slot 68 or a hole 70 in
the slat. A fabric hinge 69 is adhered to the member 66 on
IO the end opposite the slot 68 for attachment by means such
as adhesive to the pleated fabric 15: Illustratively, three
snap-on hinges 64 are mounted at spaced positions along the
slat and the associated drape. The two bottom hinges
attach to a slot 68 thereby permitting vertical self-
adjustment between the slat and drapery.
Referring primarily to FIGS. 30 and 36, the
containment means 27 comprises snap-on sleeve members 72
mounted on the bottom edge of the slats 52. The tape 20 is
supported and routed through the sleeves 72 similar to the
manner in which the fabric slots 31 depicted in figures 3
and 14 support the tape.
Referring further to FIG. 30, the containment means 26
comprises the left end housing 62 which has a tube 75
mounted therein having slits 73 and 74 formed in the
opposite sides at its bottom and top for routing the tape
20. Containment means 25 comprises magnet strips 33
attached to the bottom of the traverse track 21. The end 76
of the tape 20 extends through a slit 77 formed in the end
panel of the traverse track 21 and is secured in slidable
fashion by a finger guide 78 to the slot. When the drape
15 is closed (free end at the far left in FIGS. 30 and 37)
and the blinds are being rotated open or closed, slits 73
and 77 allow rotational movement of the tape end 76 about
CA 02352574 2001-07-03
73862-19D
33
,t
the pivot axis 79 of the end stabilizer housing 62 and thus
allows opening and closing movement of the blind.
FIGS. 31-34 illustrate various positions of the system
218. Specifically, FIG. 21 illustrates the drape in the
closed position with the slats 52 open. FIG. 32
illustrates the blind open condition with the slats 52
pivoted closed. FIG. 33 illustrates the blind open
condition with the slats pivoted partially closed
Finally, FIG. 34 illustrates the blinds open with the slats
54 open to permit close packing.
As shown for example in FIG. 31 and 37, preferably the
tape 20 is routed along the slats' pivot axis 79 defined by
the gear drive and pivoting hangers. Preferably this pivot
axis is positioned off-center along the transverse width of
the slat, toward the front or drapery 15 side thereof,
concentrating the weight of the slats on the side of the
pivot axis opposite the drape. The greater weight of the
blind on the free end offsets the weight of the fabric and
facilitates smooth pivotal movement of the blind assembly.
Also, the relatively short pivot radius on the blind side
decreases the transverse displacement of the drapery
between the open and closed positions of the blind.
Compare, for example, the blind position in FIG. s 21 and
22. The counterbalancing and short pivot radius allow
pivotal closing and opening of the slants without
interference by the attached drapery. The end slats 54E are
relatively short to facilitate closing without interference
from housing 62. See FIG. 32.
f) Tape-Supported Vertical Pleated Fabric & Blind System
318
FIGS. 38 through 45 depict a tape-supported
drapery/blind system 318 in which pivotal movement of the
CA 02352574 2001-07-03
73862-19D
34
's
blind does not move the vertical edge support member.
Preferably, the axially off-center slat mounting
arrangement discussed above is used, that is, the slats are
suspended from the traverse track by hangers or trolleys
such as those shown at 54, FIG. 3.. The primary difference
between the above system 218 and the system 318 is the use
of pivoting tape containment housings 82. Referring
primarily to FIGS. 41 through 44, the pivotal frame housing
82 comprises a generally C-shaped frame 83 having grooves
84-84 in the top edge for mounting in a slot 85 formed in
the front/drapery side of the slat 54. The pivot housing 82
is, substituted for the bottom hinge 64, FIG. 37. A
slotted pivot arm 87 is mounted for. rotation about a pivot
pin 88, preferably about a pivot axis which coincides with
the slat pivot axis 79. The tape, illustratively a concave
tape 120 (a flat tape can be used), is routed through the
containment slot 86 in each pivot arm. A fabric or plastic
hinge 89 pivot arm is mounted to , adhered to, or fonaed
integrally with the pivot arm 87 at the front/drapery end
of the frame for attachment to the drape, using adhesive or
other suitable attachment means. Unlike the FIG. 37
arrangement, here the fabric drapery is attached to the
slat only by the hinges 89. The top of the drapery is also
supported by hinges 89.
Referring to FIGS. 45 and 46, the C-shaped frames 83
are mounted to the individual slats 52 of the blind system,
such that the pivot arm axes coincide with the pivot axes
79 of the slats (hangers 54) and so that the pivot arms
form the containment means 27. The hinges 89 are attached
to and are spaced at the top of the drapery along with
others if needed. With this independent mounting
arrangement of the slats and the drapery, pivotal opening
and closing of the slats does not move the drapery
transversely (compare FIGS. 31 and 32 with FIG. 45) or
pivot the vertical edge stabilizer/containment means 62.
Please note, similar to the embodiment 218, the end slats
CA 02352574 2001-07-03
73862-19D
52E are shorter than the intermediate slats 52 to
facilitate closing the off-center mounted slats used in
this counter-balanced arrangement.
Although the various vertical edge support members can
5 be used in the arrangement 318, the lack of pivotal
movement permits very simple and thus light weight units
which need not supply significant support and need only be
of sufficient rigidity to contain the tape. As shown in
FIGS. 39 and 40, one suitable vertical edge stiffener 92
10 comprises a pair of elongated mating panels 93-93 of
flexible material such as plastic which are of.elongated C-
shaped.horizontal cross-section. The ends of the'panels
snap together to from the vertical edge stiffener 92.
g) Tape-Supported Vertical Blind System 418
15 FIGS. 47 through 54 depict a tape-supported vertical
blind system 418 in which pivotal movement of the slats is
independent of , that is does not move, the vertical edge
support or stiffener member. Preferably, the above-
discussed axially off-center slat mounting arrangement of
2 0 318 is incorporated . The primary dif f erence between the
above system 318 and the present system 418 is the absence
in the present system of a drape such as 15 and the use of
a link system 95 to control the slat-to-slat spacing.
Referring primarily to FIGS. 37 through 39; the pivotal
25 frame housing comprises a generally C-shaped frame 83
having grooves 84-84 in the top and bottom edges for
mounting onto a slot 85, FIG. 49, which is formed in the
front side of the slat 52. See also FIG. 51. A double
slotted, T-shaped pivot arm 97 is mounted for rotation
30 about a pivot pin 88, preferably about a pivot axis which
coincides with the slat pivot axis 79. Referring to FIG.
49, the C-shaped frames 83 are mounted to the individual
slats 52 of the blind system, such that the pivot axes of
CA 02352574 2001-07-03
73862-19D
36
's
the pivot arm coincide with the pivot axes 79 of the slats
and the pivot arms 97 form the containment means 27. The
tape, illustratively a flat tape 20 (a curved tape 120 can
be used), is routed through the horizontal containment slot
96 in each pivot arm 97. The second, vertical slot 98
supports one of a group of co-operating links 99-99. Each
link 99 is an elongated S of length which spans two
adjacent pivot arms and estakilishes the maximum desired
spacing between the slats 54-54, as shown in FIGS. 52 and
53 .
Referring to FIGS. 47 and 48, the links 95-95 hide the.
tape. Referring also to FIG. 52, as the blind array is
translated closed (slats 52 at maximum spacing, permitting
pivotal closing or opening of the slats) the ends of each
link 99 engage the adjacent two frame arms 83-83, thereby
establishing a uniform between-slat spacing and a pleasing
appearance.
As shown in FIG. 53, pivotal opening and closing of
the slats does not move the vertical edge stabilizer 92 or
the containment means 26/28. Please note, similar to the
embodiment 218 and 318, the end slats 52E are shorter than
the intermediate slats 52 to facilitate closing the off-
center mounted slats used in the counter-balanced
arrangement. As shown in FIG. 54, when the blind is open
(slats in the closed condition), the telescoping links 99
99 slide over one another to permit close packing.
Although the various vertical edge stabilizers can be
used in the arrangement 418, the lack of pivotal movement
permits very simple and thus light weight units which need
be only of sufficient rigidity to contain the tape. As
shown in FIG. 52 through 54 the vertical edge stiffener 92
described in FIGS. 29 and 29A can be used.
CA 02352574 2001-07-03
73862-19D
37
s
FIGS. 47 and 48 depict a two tape system (one tape at
the bottom and one at the top of the blind) and two
associated link systems 95. However, a single tape/single
link system can be used, preferably with the tape and link
system routed along the bottom of the slats to maximize the
ability to control the tendency of the blind to bunch at
the bottom.
h) Vertical Shutter Drapes In General
(Vertical Shutter Hinge Drape
. . ~ and
Vertical Shutter Pleatuoette Drape)
Turning now to the drawings, wherein like components
are designated by like reference numerals, FIGS. 56 - 70
illustrate embodiments) 121 of vertical shutter drape
cover systems in accordance with the present invention, for
cover an opening such as a window, doorway or other
passageway, or simply for cover or decorating a space, for
example, along a wall. The systems include an array of (1)
slats 160 and (2) front edge strips or edge members 122
which are pivotally attached along one edge to the slats,
along with (3) automatically adjusting spacer means or
hinges 130 attached between adjacent edge members for
aligning and spacing the slats, and/or (4) a pleated blind
attached to the edge of the front edge strips opposite the
one edge and/or (5) one or more vertically spaced tapes as
described in my co-pending patent application which support
the shutter drape. In general, for convenient reference,
in this section "vertical shutter drape" includes "vertical
shutter hinge drapes" and "vertical shutter Pleatuoette
drapes". "Vertical shutter drape" system refers to a
system comprising slats, edge members, and spacing control
means in the form of hinges. ''Vertical shutter pleatuoette
drape" system refers to a system comprising slats, edge
members and vertically pleated or folding covers, typically
CA 02352574 2001-07-03
73862-19D
38
verticall
y pleated fabric drape which also are spacing
control means.
Preferred embodiments of the vertical shutter drape,
discussed more fully below, include an arrangement (FIG.
58) in which spacer hinges are mounted between edge strips
or members supported by slats that are suspended from a
traverse track, for example hanger means 28, 29 shown in
FIG. 57. The hanger means attach to the slats at off-
center locations (off-center along the horizontal width of
the slats) for the purposes of (1) counterbalancing the
weight of the front edge strip mamber (and the fabric drape
where used) and (2) allowing the slats to pivot without
moving the front edge strip (hinge-to-edge strip function).
The preferred push-pull tape is the type described
above, one which is longitudinally rigid, transversely
rigid along an axis orthogonal to the longitudinal axis and
the plane of the drape, and transversely flexible along an
axis in the plane of the drape orthogonal to the other
axes. The tape is routed through or along the drape,
preferably through slots in the front edge strips, for the
purposes of (1) overcoming the resistance of the hinge
means and/or the pleated fabric (depending upon whether one
or both are used) and pushing.and pulling the blind and
cover open and closed, and (2) maintaining the alignment of
the blind ends parallel and keeping the ends square. The
tape also maintains the alignment sufficient to allow the
exterior use of the system.
The front edge strips function as extensions of the
slats which counterbalance the slats. Also, the front edge
strips provide access and support for the tapes) 180, 182.
In combination with the front edge strips, the hinge
members can be used without the fabric cover. Here the
hinge members substitute for the pleated fabric cover in
maintaining the spacing of the system. Also, this off
CA 02352574 2001-07-03
73862-19D
39
s
center slat/hinge member/front edge strip system may be
used without a tape--the weight of the slats and front edge
strip keeps the slats aligned and the push and pull power
of the tape may not be needed. Preferably, in systems
which are mounted outside a building or are otherwise
subject to wind or other strong air currents, a support
tape 180, 182 is used. The combined off center slat/hinge
member/front edge strip/tape cover system is particularly
useful in maintaining position and alignment in windy
conditions and, like the non-tape hinge system, is very
sturdy.
The system 120 includes a plurality of front
edge-members or edge strips 122. Edge-members 122 are
preferably designed to be light yet rigid, and include
means for attaching a window cover material thereto.
Exemplary window cover attachments are discussed in further
detail below.
The illustrated edge members are elongated rectangular
cross-section members or plastic or lightweight metal such
as aluminum. The combined~slat and drape array may be
suspended vertically, and conventionally, via either the
slats or the edge members from a traverse track (not
visible in FIG. 56). As discussed above, the traverse
track may be any well-known type of traverse track, one
preferred example of which is illustrated in FIG. 57,
wherein traverse track 124 has a box shaped cross-section
and includes a slot 125 in lower portions 26 thereof.
Illustratively, hanger means in the form of hooks or
slide-members 128 extend downward through the slot from
dollies 129 which ride along the track; illustratively, the
hooks 128 engage holes 127 near the upper edges of the edge
members (or the slats). As shown in FIGS. 63 and 66,
typically the holes 127 are off-center along the horizontal
or transverse width of the slats, that is, are located
relatively closer to the associated edge member rather than
CA 02352574 2001-07-03
73862-19D
at the center of the slat, for effecting the above-
described weight counter-balancing and the hinge means-to-
edge strip function. The shutter drape may incorporate and
be opened and closed by conventional gear and chain drive
5 hardware for slat assemblies which traverse and pivot the
dollies 129 and hangers 128 and slats 160 open and closed.
As applied to my shutter drape system, the traversing and
pivoting hardware means (1) traverses the slats and the
associated edge members and drapery along the associated
10 window or other covered area between a shutter drape system
open condition (shutter drape compacted together, exposing
all or part of the associated area) and a closed condition
( shutter drape extended, corer the associated area ) and ( 2 )
with the shutter drape in the closed condition, pivots the
15 slats open or closed. Thus, using conventional mounting
and traversing hardware, my system and its dual opening and
closing action uniquely provide selection of (1) complete
privacy and blockage of light (system and slats closed),
(2) privacy with light penetration (system closed with
20 slats open (at approximately a 90 degree angle to the plane
of the system, permitting light penetration through the
translucent drapery, with privacy, or selectively angled
off-normal between 0 degrees and 90 degrees to control
light direction) and (3) maximum light penetration (system
25 open).
A particularly important aspect of this embodiment of
the present invention is the provision of automatically
adjusting spacer means, preferably foldable or hinged
spacer members 130, FIG. 1. The spacer hinges effect equal
30 spacing between the drapery folds or pleats and between the
slats, and promote a uniform appearance. Preferably, at
least two spacer hinges 130 are provided between adjacent
ones of the plurality of edge members 122. A first of the
spacer hinge pairs is preferably attached to an upper
35 portion 122A of the associated spacer members and the
CA 02352574 2001-07-03
73862-19D
41 '
second spacer hinge is attached to a lower portion 1228 of
the edge-members.
FIGS 58 and 59 illustrate a preferred arrangement for
a spacer-member 130. Here, spacer-member 130 comprises two
plate-members 132A and 1328. The plate-members 132A and
1328 are attached together, at respectively first edges
13 4A and 13 4 B thereof , by a hinge 13 5 . The hinge 13 5 is
arranged such that the plate-members may be folded together
in a generally face-to-face relationship for opening the
window cover system, and opened to a predetermined maximum
angle theta to each other for closing the window cover
system. -
In a preferred hinge arrangement for hinge spacer
member 130, a hook-shaped slot 136 is formed on edge 134A
of plate-member 132A and a bead 138 is formed on edge 134H
of plate-member 1328. The plate-members are attached
together simply by pressing bead 138 into hook-shaped slot
136. Slot 136 effectively provides a stop which limits
angle theta to which the hinge member 130 may be opened,
but may be arranged such that plate-members 132A and 1328
may be closed together in a face to face relationship for
opening the window cover system.
Preferably, meant are provided for preventing vertical
movement of bead 38 in hook-shaped slot 138, i.e., for
retaining bead 38 in slot 36. This may effected
conveniently by making plate 328 slightly shorter than
plate 32A and crimping the top and bottom of ends 36A and
368 of slot 36 as illustrated in FIG. 2C.
Each hinge member 30 is attached to a pair of edge
members 122 by another hinge arrangement 142, see, for
example, FIGS. 58 - 60. In one aspect of the present
invention edge-members 122 are preferably hollow or flat
(FIG.68) and formed from a light but rigid material such as
CA 02352574 2001-07-03
73862-19D
42
aluminum or vinyl which is easily worked into extrusions.
Referring now in particular to FIG 60, in a preferred
method, hinge 142 is provided by forming one or more
longitudinal spaced slots 144 along opposite sides 122A,
122B of adjacent ends of each edge-member 122. One or more
tabs 146 corresponding to slots 144 are provided on edges
i40A and 140B of the hinged hinge member and, preferably,
as shown, snap into the slots~144 and are retained by a
friction fit. Tabs 146 are inserted into slots 144 to form
hinge 142. Please note, for economy of drawing space, FIG.
60 illustrates hinges 146, 146A, and 1468, although
obviously hinges 146, 146A, 1468 can be.used alone as well
as in combination. Preferably, for economy of manufacture,
one or the other will be used in a given window cover
assembly.
In a preferred arrangement tabs for insertion into
slots 144 are provided with means to retain the tabs in the
slots after they are inserted therein, while still allowing
freedom of movement of the tabs in the slots to form a
hinge.
Continuing with reference to FIG. 60, a tab 46A, here
shown on edge 408 of plate-member 132B, is provided with a
tooth-member. This. may be effected by forming the hinge
with a tooth member 148 or by making two incisions 150 and
one incision 152 in tab 146 and pressing the portion of tab
surrounded by the incisions inward to form tooth- member
148. When tab 146A is pressed into a slot 144 the slot and
the outward extending tooth member will yield to allow
passage of tab 146B. However, once inserted, tooth-member
148 will retain tab 146A in the slot.
Another method of forming a tooth-member on a tab is
illustrated in FIG. 60, with reference to tab 1468. Here,
a tooth-member is formed by forming a slot 154 in the tab
to isolate a narrow portion 156 thereof. Portion 156 is
CA 02352574 2001-07-03
73862-19D
43
provided with a rolled edge 158 which forms the tooth
member. Edge/tooth 158 may be compressed during and to
permit insertion into slot 144, then expands to prevent
(accidental) removal.
As shown in FIG. 68, flat (non-boxlike) front edge
strips 222 can be used. FIG. 69 depicts a hinge spacer
member 230 suitable for a non-boxlike flat front edge
member 222. The hinge is constructed generally the same as
the version depicted in FIG. 60, except that hinges 246C
and 246D in 232A and 232B are offset vertically to preclude
. interference along the narrow mounting end of the receiving
front edge strip.
Referring again to FIG. 1 and FIG. 58, in one aspect
of the present invention, window system 20 may take the
form of a vertically oriented slatted vertical blind.
Slats 160 of a suitable material such as vinyl or aluminum
are attached to one edge of each of edge-members 122 by a
hinge 162 (see FIG. 58) and may be varied in inclination,
with respect to the edge-members, for controlling light
admitted or excluded by the blind.
A preferred method of attaching a slat 160 to an edge
member 122 is illustrated in FIGS 61, 62, and 63. Here,
hinge 62 ( see FIG 61 ) is formed from a flexible hinge-strip
64 (see FIG. 62) having a generally dumbbell-shaped cross-
section. The hinge-strip 164 may be conveniently formed by
two generally parallel beaded portions 168, preferably of
a moldable resilient material such as a plastic or a
rubber. The beaded portions 168 are molded onto and
separated by a flat portion 170, which is preferably formed
from strip of a fabric, preferably a durable synthetic
fabric such as nylon.
.The hinge 164 includes a generally cylindrical member
172 extending along an edge 122C (see FIG. 63) of
CA 02352574 2001-07-03
73862-19D
44.
edge-member 122, and another generally cylindrical member
174 extending along one edge 160A of slat 160 (see FIG.
63). Cylindrical members 172 and 174 have a slots 172A and
174A respectively extending completely (see FIG 60)
therealong. Edge-member 122, slat 160, and cylindrical
members 172 and 174 are arranged such that slots 172 and
174 are generally aligned with each other. One beaded
portion 168 of hinge-strip 164 is inserted in cylindrical
member 172, and the other beaded portion 168 of the
hinge-strip is inserted in cylindrical member 174, with
flat portion 170 of the hinge strip inserted in slots 172A
and 174A (see FIG. 61).
The above-described method of constructing hinge 162
allows for rapid and convenient assembly of slat 160 on
edge member 122, and also provides a hinge sufficiently
free to penait adjustment of the inclination of slats 160
by any of the well-known methods, for example cord-operated
methods, of adjusting window blind slats.
Please note, FIG. 63 depicts holes/slits 127 adjacent
the upper edges of the slats by which the combined blind
and slat system is traversingly mounted to the traverse
track. Specifically, rollers or gliders are attached at
their bottom end to the slats and at the top are mounted to
or captured by the traverse track for sliding, rolling,
etc. movement along the track. The holes are located off-
center along the horizontal width of the slat for the
purpose of providing counter-balancing in which the weight
of the slat 160 balances the weight of the edge strip.
It has been determined that provision of hinge members
132, because of the elongated edges 140A and 1408 thereof
attached to edge-members 122, is very effective in
maintaining precise spacing and parallelism of the edge
members and fabric attached thereto. This parallelism and
CA 02352574 2001-07-03
73862-19D
spacing may be maintained, even if the system is exposed in
an open Window in breezy conditions.
Additional spacing and parallelism maintenance can be
provided by traverse tapes, which also provide resistance
5 to in-and-out motion (toward or away from a window), to
fluttering and swaying of the cover system, and to the
resistance of pleated fabric drapery when such is included
in the cover system 121. This enhances stability and
appearance, even in the event the cover system is exposed
10 in an open Window or mounted exteriorly, for example, on
exterior walls. A preferred method of incorporating the
traverse tapes is set forth below with reference to FIGS 1
and FIGS 64 and 65.
Referring now to FIG. 56, window cover system 121 can
15 be provided with at least one traverse tape 180 extending
along a lower portion of window cover system 121 and
preferably with a second traverse tape 182 extending along
an upper portion of window cover system 121. Traverse
tapes 180 and 182 are preferably metal or plastic tapes
20 which are rigid in longitudinal and lateral directions in
the plane of the tape, and flexible in a direction
perpendicular to the plane of the tape. Maximum rigidity
for the tapes in the lateral and longitudinal planar
directions is achieved when the tapes are constrained as
25 much as possible against perpendicular flexure in regions
where perpendicular flexure is not desirable. Thus, in a
preferred U configuration, the tapes) are routed through
the blind or drape, then vertically upward through both
opposite edge support mambers, then to and along the
30 traverse track. Preferably the tapes are magnetic
(attached to magnets), to keep them together over common
runs along the end members) and along the track.
Preferably, the track has magnet means, illustratively
magnet strips mounted on the bottom of the track, for
35 normally holding the tapes) against the track, yet
CA 02352574 2001-07-03
73862-19D
46
permitting ease of "peeling" away action and recovery of
the tapes) during traversal of the blind. The action of
the tape and magnet support, along with various alternative
configurations (for example, L-configurations attached to
one end member and routed through the blind or drape, up
the opposite end member and along the track) apply here.
One preferred method of providing effective constraint
of traverse tapes 180 and 182 is to pass the tapes through
slots, not only in edge-members 122, but also in plate
members 132A and 1328 of spacer-members 132. Accordingly,
the preferred arrangement for tapes is that traverse tape
182 extends horizontally through edge-members 122 and hinge
members 132 via horizontal slots 184 therein, at the upper
portion 122A of edge-members 122, (see FIGS 64 and 65), and
tape 180 extends horizontally through edge-members 122 and
spacer-members 132 via horizontal slots 184 therein, at the
lower portion 122B of edge-members 122.
Turning now to FIG. 70, yet another embodiment of the
of the present invention is illustrated. Here, a window
cover system 221 includes edge members 122, slats 160, and
traverse tapes 180 and 182 (as described above for window
system 121), but does not include hinge members disposed
between the edge-members. Window cover system 221 includes
a panel 190 of a flexible window cover material arranged in
the form of a series of accordion-like vertical pleats 192.
It is preferable, although not necessary, that panel
190 be attached in removable fashion to window cover system
221. This provides that the window cover system may be
more easily transported to a desired installation location,
and also provides that the panel may be easily removed and
reinstalled as may be required , for example, for cleaning
and maintenance of the panel. A slat 160 is preferably
attached to one edge of edge-member 122 by cylindrical
CA 02352574 2001-07-03
73862-19D
47
members 172 and 174 and hinge strip 64 as described above
for window cover system 120.
Referring now to FIGS 66 and 67, a preferred method of
removable attachment of the drapery panel 190 .is to
fabricate the panel such that each of pleats 192 is formed
such that a lip-portion 194, formed from a single or double
thickness of the fabric of panel 190, extends from the
pleat. The lip-portion 194 is then conveniently attached
on edge-member 122, proximate the edge of the edge-member
opposite slat 160, by a plurality of snap fasteners 196,
which are disposed at .intervals along edge-member 122.
Alternatively, the drape can be formed and attached without
lips. Preferably snap fasteners are disposed top, bottom
and center. As mentioned above, the individual slats have
preferably off-center holes or slots 193 for traversing
attachment by hanging means such as rollers or gliders to
the traverse track. Lip-portions 94 of pleats 192 are
provided with open ended slots 198 through which tape 182
(and correspondingly tape 180) may pass. The width of
lip-portion 194 of a pleat 192 is preferably selected such
that tapes 180 and 182 are constrained against vertical
motion by the slot in the lip-portion, even when window
cover system 221 is fully closed, i.e., when edge members
122 have a maximum spacing therebetween. Clearly, the
width of lip portion 94 should be wide enough such that
slot 198 may be sufficiently deep to accommodate tape 182
when window cover system 221 is fully open, without undue,
if any, distortion of panel 190. An arrangement in which
an edge-member 122 is attached to every third pleat in
panel 190 has been found to provide an aesthetically
pleasing cover system.
When the vertical pleated drape is included, as per
FIGS. 66 and 67, preferably the tape is included to
overcome the resistance of the fabric drape and to open the
CA 02352574 2001-07-03
73862-19D
48
pleats (close the drape) and hold thetpleated fabric in the
opened position.
It has been found that, even without hinge members
between edge-members 122, window cover system 221 is
constrained effectively against side-to-side motion, albeit
perhaps not as effectively as if hinge members were
present. The absence of spacer-members, however, may
provide a more pleasing appearance for the window cover
system which may be preferable for more formal
applications.
To reiterate and expand upon the above-described
combinations, such combinations include (1) an off center
slat/hinge spacer member/counterbalanced front edge strip
cover system (flat or hollow front edge strips can be
used); (2) off center slat/hinge spacer member/front edge
strip/tape system; (3) off center slat/hinge spacer
member/front edge strip/tape/front cover; (4) off center
slat/front edge strip/front cover of pleated material. As
suggested by examples (3) and (4), typically the pleated
material substitutes for the spacing function of the hinge
member and vice versa.
i) Vertical Hox Blind
Referring now to FIGS. 71 - 74, still another
embodiment 223 of the present invention is illustrated.
The illustrated system incorporates a "box~~ pleat blind
(which typically is used by its manufacturer in a
horizontal orientation) in a vertical orientation. The
illustrated system uses, but is not limited to blinds such
as the SILHOUETTE blind available from Hunter Douglas, Inc,
having U.S. headquarters in Pittsburgh, PA.
Here, although the illustrated window cover system 223
includes a generally rectangular frame 100, it will be
CA 02352574 2001-07-03
73862-19D
49
y
understood from the following discussion that a frame 100
is not required--the system 223 requires only that the
track be mounted in place, over an opening such as a window
or a door, or simply over an are to be covered, for
example, for decorative purposes. The illustrated frame
has an upper horizontal frame-member 102 and vertical
frame-members 104 and 106.
A roller arrangement 108 is attached to upper
horizontal frame-member 102 proximate vertical frame-member
106, and extends vertically downward from the upper
horizontal frame-member.
An elongated traverse track 110, is pivotally
attached, at one end 110A thereof to upper frame member
102, for example, by bolt 112 which is attached proximate
vertical frame member 106. The bolt 112 is attached
proximate vertical frame-member 106. Traverse track is
attached in translatable fashion, proximate end 1108
thereof, to upper horizontal frame-member 102 by means of
a hanger 116 attached to the traverse track and a C-shaped
bracket 114 attached to the upper horizontal frame-member.
The bracket 114 is preferably attached to the upper
horizontal frame-member at a second point between the point
of attachment of bolt 112 (the pivot pointy and roller
arrangement 108. This arrangement allows pivotal movement
along the direction indicated by arrow A, FIG. 73.
As discussed above, in one preferred embodiment, the
cover material or blind 220 is in the form of a pattern of
joined box-pleats, which comprise generally rectangular
fabric panels 222A and 2228. Referring to FIG. 74, the
panels are attached together in a face-to-face relationship
and separated by a plurality of vertically-oriented soft
fabric strips or vanes 222. The blind 220 is attached, at
one end thereof, to edges 232A and 232A of a rigid vertical
edge-member 230. The edge-member 230 is suspended in
CA 02352574 2001-07-03
73862-19D
slidable and rotatable fashion fromt traverse track 110
(shown in phantom in FIG. 74) by a first slide-member 236.
Slide member 236 includes a shaft 237 which is secured in
a receiving hole or cylinder 239 in edge-member 230 by a
5 screw 241 (see FIG. 74). Fabric panels 222A and 2228 are
attached to roller arrangement 108 at the end of the panels
opposite edge-member 230.
Fabric panels 222A and 2228, and hence box pleated
blind 220, are suspended from traverse track 110 by a
10 plurality of second slide-members 238, each thereof free to
slide in the traverse track, and each thereof attached to
a particular one of fabric strips. 224, for example,. to
every third fabric-strip 224.
A magnetic alignment or spacer 240 extends
15 horizontally, partially in the traverse track 110, see FIG.
74. As is preferred for traverse tapes and as is discussed
previously herein, alignment tape 240 is substantially
rigid in lateral and longitudinal directions in the plane
of the tape, and flexible in a direction perpendicular to
20 the plane of the tape. Tape 240 is attached at one end
thereof to first slide-member 236, see FIG. 74 (or to
associated shaft 237), at the other end thereof to roller
arrangement 108, and attached at intervals therealong,
preferably generally regular intervals, to each of second
25 slide-members 238.
Referring again to FIGS. 71, 73, 74 and 75C-75F, in
the preferred embodiment, the cover system 223 is provided
with at least one traverse tape 180. Similar to the
arrangement described above relative to the vertical
30 shutter drape depicted in FIG. 56, the tape 180 extends
along (through slots in) a lower portion of the box blind
and preferably a second traverse tape 182 extends along an
upper portion of the blind. Traverse tapes 180 and 182
preferably are metal or plastic tapes which are rigid in
CA 02352574 2001-07-03
73862-19D
51
longitudinal and lateral directionsrtin the plane of the
tape, and flexible in a direction perpendicular to the
plane of the tape. Maximum rigidity for the tapes in the
lateral and longitudinal planar directions is achieved when
the tapes are constrained as against perpendicular flexure
in regions where perpendicular flexure is not desirable.
Thus, in a preferred U configuration, the tapes) are
routed through the blind, then vertically upward through
both opposite end members 230, then to and along the track
110. Preferably the tapes are magnetic, to keep them
together over common runs along the end members) and along
the track 110. Preferably, the track has magnet means.,
illustratively magnet strips 111-111 mounted on opposite
sides of the bottom of the track 110, see FIGS. 73 and 74,
for normally holding the tapes) against the track, yet
permitting easy "peeling" away action and recovery of the
tapes) during traversal of the blind. The action of the
tape and magnet support, along with various alternative
configurations (for example, L-configurations attached to
one end member and routed through the blind or drape, up
the opposite end member and along the track apply here.
Window cover system 223 is opened and closed by
driving roller 108 and traversing slide edge-member 230,
such that box-pleated panel 220 is rolled onto roller
arrangement 108 for opening the cover system and unrolled
from roller arrangement 108 for closing the cover system.
As blind 220 is rolled onto the roller together with tape
240 and slide members 238, traverse track 110 pivots on
bolt 112 and translates outward in the direction of arrow
B (see FIG. 72) to accommodate an increasing diameter of
rolled panel on roller arrangement 108.
Continuing with reference to FIGS 71, 72, 73, and 74,
a preferred method of driving roller arrangement 108 and
edge member 230 is a continuous-loop chain-drive,
preferably a ball-chain-drive 250. Ball chain-drive 250
CA 02352574 2001-07-03
73862-19D
52
comprises a continuous loop of cord~~252 having beads or
balls 254 attached thereto at regular intervals therealong.
Ball chain-drive 250 is looped around a sprocket 260 which
is attached to an upper end of roller arrangement 108.
Edge member 230 is attached to ball-chain-drive 250 by
means of a bell-crank 262 which is integral with a bracket
264 (see FIG. 74). Bracket 264 is attached to cord 252 and
a ball 254 by a clamp 266.
Ball-chain-drive 250 is preferably extended through an
aperture 270 in vertical frame-member 104 to provide
convenient access for operation of the drive system (see
FIG. 71) .
A useful feature of the drive arrangement and panel
suspension arrangement of window cover system 223 is that
the drive may be used for adjusting separation of panels
222A and 222B, and thus adjusting the inclination of vanes
224 with respect to the panels. If the panels and vanes
are from a lightweight light diffusing fabric, altering the
spacing of the panels 222A and 2228, and vanes 224
therebetween, provides a means of varying attenuation of
light transmitted, by diffusion, through the panels and
vanes. This feature of the drive is explained below with
reference to FIGS 75A through 75F.
Fig 75A illustrates the window system in a fully open
position, i.e., with edge-member 230 in an open position.
FIG. 758 shows edge-member 230 in a traversing attitude
between open and closed positions. In this attitude, edge
member 230 is rotated such that separation between fabric
panels 222A and 222B is minimized, and such that vanes 224
are inclined, almost parallel the plane of the blind. In
this attitude, three thicknesses of fabric impede passage
of light through panel 120.
CA 02352574 2001-07-03
73862-19D
53
Now, referring to FIG 75C, and also to FIG 71, an
elongated, downward-extending stop-member is attached to
upper horizontal frame-member 102, proximate vertical frame
member 104. Stop-member 272 is configured and positioned
such that when edge-member 230 is traversed in a direction
towards a closed position (see FIG. 75B arrows C), edge
2328 thereof eventually contacts stop-member 272 as a
closed position is approached (see FIG. 75C). As
edge-member 230 is traversed further in the direction of
arrows C, the edge-member is caused to rotate, thereby
rotating the panels and sections 224 such that the
. separation between the panels is increased (see FIG.. 75D),
up to the point (see FIG. 75E) where the separation between
panels 222A and 2228 and the resulting light transmission
through the blind are at a maximum, and where vanes 224 are
inclined generally perpendicular to the plane of the
panels. As illustrated in FIG. 75F, further traversal of
edge-member 230 in the direction of arrows C causes
separation of the panels to decrease.
The above-described drive mechanism and arrangement of
window cover system 223 provides a single drive for opening
and closing the window cover, and varying light
transmission through the system when it is closed. This
saves manufacturing cost associated with more common
separate drives for opening and closing, and for
attenuation. The single-drive arrangement also reduces
confusion for a user, as the user is no longer required to
remember or guess which of two drives serves what purpose.
j) Horizontal Pleated SILHOUETTE BliD,d
FIGS. 76 - 79 depict yet another embodiment of my
invention, in the form of a unique horizontal roller blind
system 225. This system comprises a horizontally-oriented
box blind 280, such as the above-described SILHOUETTE blind
CA 02352574 2001-07-03
73862-19D
54
(identified by numeral 220 in FIGS. '~1 and 72), mounted to
track means 282, and a horizontally-oriented pleated blind
284, such as the FINALE blind, mounted far raising and
lowering in unison with the box blind. Compared to a
conventional box blind alone, the combined blinds provide
additional light absorption (blocking) and privacy, along
with the decorative appearance of pleated blinds.
Specifically, the exemplary roller blind system 225
comprises conventional track means 282, illustratively an
elongated, generally C-shaped cross-section box structure
which is mounted to a wall or ceiling, etc. A roller 286
is ~rotatably mounted .to the track, for example via brackets
(not shown) at the ends of the track. Conventional means
such as a pull (not shown) or a motor mechanism (not shown)
I5 is provided for raising and lowering the box blind 280 by
rotating the roller 286.
The exemplary box blind 280 typically is of
translucent flexible fabric material formed into box pleats
325-325 defined by opposite panels 222A and 222B and spaced
transverse vanes 224. The exemplary pleated blind 284
typically comprises translucent fabric material which is
formed into generally sawtooth-shaped pleats 302-302. As
shown in FIG. 77, the box 280 blind is mounted at top end
296 thereof to the roller 286 and the pleated blind 284 is
mounted at its top end 292 independently of the box blind,
preferably to a horizontal bottom lip 290 of the track 282.
An elongated rail 288 of or containing metal or other heavy
material, is mounted to the bottom end 298 of the box blind
and the bottom end 294 of the pleated blind. As a
consequence of this mounting arrangement, the blinds are
oriented horizontally (with their box and sawtooth pleats
extending horizontally), the pleated blind is side by side
the box blind, preferably at both the top and bottom, and
the plane of the pleated blind is generally parallel to
that of the box blind.
CA 02352574 2001-07-03
73862-19D
Referrin in
g particular to FIGS. 77 and 78, consider
now the means 300 for raising and lowering the two blinds
in unison. Means 300 such as the illustrated cord or a tape
(for example, tape 180) is routed through or along the
pleated blind 284, typically through apertures 304-304 in
the pleats 302 and is attached at one end thereof to the
roller 286 and at the opposite end to the rail 288,
adjacent the pleated blind 284. During rotation of the
roller 286, the cord is retracted upward (wound) around the
10 roller 286 (counterclockwise rotation) or extended downward
(unwound; clockwise rotation), and in cooperation with
wrapping and unwrapping of the box blind on the roller 286,
raises and lowers the pleated blind 284 in unison with the
side-by-side box blind. Specifically, and considering
15 raising operation, initially during raising of the pleated
blind 284 by cord 300, the cord pulls the pleated blind end
of the rail 288 upwardly, pivoting or rotating the rail as
shown in FIG. 78 and translating upward the panel 222B of
the box blind adjacent the pleated blind 284 relative to
20 the panel 222A. Flexible vanes 224-224 pivot and crumple,
allowing panels 2228 and 222A to flatten against one
another, flattening the box drape transversely for storage
on the counterclockwise-rotating roller 286. At the same
time, the pleated blind 284 is flattened or compacted
25 longitudinally (horizontally) and is stored against the
track lip 290. Lowering operation is the opposite of the
above process and, assisted by weight/rail 288, the box and
pleated binds unfold to the normal box and sawtooth
configurations shown in FIG. 77. The rail is of, or
30 mounts, sufficient weight that during the unwinding of the
cord, gravity pulls the two blinds downward in unison,
facilitates orienting the vanes in an open, generally
horizontal orientation and facilitates uniform hanging of
the two blinds. In short, the side-by-side mounting of the
35 blinds, independently at the top and by the pivoting or
hinge action rail at the bottom, and the co-operative
CA 02352574 2001-07-03
73862-19D
56
operation of the cord and roller combine to effect joint
opening and closing operation of the two-blind system.
Alternatively, a flexible rail 288 which bends can be
used. For convenience, we use "pivoting" to include both
rotation and bending or hinging action.
Various alternatives and substitutions readily come to
mind. For example, instead of a single pleat sawtooth
blind, the blind 284 can be a "hollow" pleat blind, such as
the DUETTE blind available from Hunter Douglas, Inc. Also
the FINALE elongated edge, single pleat sawtooth blind
available from Verosol, USA, Inc. can be used, in which
case the cord can be routed through the pleats or the
elongated edges.
Although one or more cords 300 or other means can be
used for raising and lowering the blinds, preferably at
least two cords, spaced apart along the horizontal length
of the blinds, are used, to raise and lower the blinds
without tilting.
k) Dual Tape-Drive Blind System
FIGS. 80 - 87 depict dual tape alternatives to the
sprocket-driven, tape-supported cover system.
FIG. 80, 81 and 82 depict a dual bevel gear drive
system 310 comprising top and bottom support means in the
form of sprockets 312 and 314 at each side of the window
cover means. The exemplary sprockets have teeth which mesh
with notches in the associated top and bottom tapes 316 and
318. The teeth are of appropriate size and pitch such that
reversible rotation of the sprockets advances and retracts
the top and bottom tapes in unison, at the same speed.
Illustratively, the top and bottom sockets are driven,
respectively, by bevel gears 320 and 322. These gears are
CA 02352574 2001-07-03
73862-19D
57
coupled together and driven together by mating bevel gears
324 and 326 mounted on rotatable vertical shaft 328,
thereby advancing and retracting the tapes in unison. The
shaft 328 can be driven manually, or by a motor, such as
electric motor 329, which drives shaft 328 through gear
arrangement 331, for driving the associated right or left
side, upper and lower tapes 316 and 318 in unison.
FIGS. 83 and 84 depict one preferred apparatus for
storing elongated tapes 316 and 318 to permit window covers
which range in width from very narrow to very wide, limited
practically only by the size and resistance of the coil and
the size and weight of the associated end support member
and contents. The gear drive is mounted in the compartment
334 within vertical end support member 336. The tapes 316
and 318 are coiled within the compartment and because of
the in-unison sprocket drive arrangement, can have free
ends. Alternatively, the ends can be pinned or otherwise
fastened together as shown at 339 and 341. The coils 338
and 340 wind up and unwind in unison as the blind traverses
between the closed condition shown in FIG. 83 and the open
condition shown in FIG. 84.
FIG. 85 depicts another alternative drive which
includes an endless sprocket belt or chain drive 342 which
is mounted over upper and lower tape drive sprockets 344
. and 346 in the end support member's compartment 334 and
drives the upper and lower sprockets together and the
associated tapes in unison.
FIGS. 86 and 87 depict another dual tape arrangement
348 which permits large blind displacement. Here, the top
and bottom tapes are routed together, illustratively at
each end of the blind, over top~wheels 350, then over a
bottom vertical traveler unit 352 and vertically (or
horizontally) up the compartment 334 to the location 351
where the tapes are pinned together. Although, as
CA 02352574 2001-07-03
73862-19D
58
described previously, a sprocket drive can be used, here
the illustrated support means such as 350 and 360 are non-
toothed rollers or wheels.
The traveler 352 comprises a bracket 354 or plate
having main idler wheel 356 around which the tapes are
routed and two associated guide sprockets 358 and 360. The
traveler 352 moves vertically (or horizontally) as the
drape traverses open and closed, accommodating winding and
unwinding of the tapes. Alternatively, and preferably, to
IO facilitate control of the tapes, a magnetic, vertically (or
horizontally) oriented containment/hold down strip 362 is
mounted within the compartment~and magnetically releasably
secures the tapes thereto, in the manner of the magnet
containment and hold down arrangement disclosed above
herein. That is, as the top and bottom tapes are withdrawn
from their compartment (and the associated vertical left
end support member 336 traverses left in FIG. 87 across the
associated window or space), closing the window cover
means, the traveler 352 is moved upward, peeling the tapes
away from the magnet containment means 362. Conversely,
when the left edge support member 336 traverses or is
traversed to the right, opening the window cover means, the
weight of the traveler moves the traveler downward and the
tapes are recaptured by the magnetic containment means 362.
In short, as the blind traverses and the tape unwinds or
pays out, the tape readily peels off the magnetic
containment means 362. When the blind traverses back, the
magnet strips recaptures the tape.
The stability of the system is such that both end
support members can be free to traverse, and traversal of
either end is easily effected by hand, as well as by drive
means such as an electric motor. Also, because of the
light weight (the end support members, sprockets/rollers
and travelers can be light weight plastic) and the
resistance or light braking action provided by the
CA 02352574 2001-07-03
73862-19D
59
t _
s
containment means 362 which resists unintended movement,
the system possesses positional stability and the end
support members tend to remain in the selected position to
which they are moved. This positional stability and the
ease of movement allow the system to be mounted vertically
(as indicated by "Bottom 1'~ in FIG. 86 which indicates the
bottom side of the system) or horizontally (rotated ninety
degrees to the '~Bottom 2" orientation, FIG. 86) or at
intermediate orientations.
IO The present invention has been described in terms of
a preferred embodiment and a number of other embodiments.
The invention however is not limited to the embodiments
described and depicted. Rather, the scope of the invention
is defined by the appended claims.
