Note: Descriptions are shown in the official language in which they were submitted.
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TITLE OF INVENTION
Improvements to Parallel Balance Systems.
FIELD OF INVENTION
This invention relates to a mounting system for a closure member
in an assembly and improvements thereof which allows the secure sliding and
subsequent pivoting of the closure member from a position parallel to the
assembly, wherein sliding of the closure member is allowed to a fully pivoted
position. The invention is preferably embodied in a window assembly but finds
application also in large pivoting windows and patio doors.
BACKGROUND OF THE INVENTION
Double hung windows are well known in the art. There are a
multiplicity of examples of such double hung windows which incorporate
window frames for the sliding of a window sash within a jamb guide. Further
there are many examples within the prior art which allow for the sliding of a
window sash within a frame within the jamb channels thereof which further
incorporate a carrier or shoe attached to the window sash which allows for the
pivoting of the window sash away from the window frame.
A multiplicity of designs for sliding patio doors further exist within
the prior art. A typical patio door is made up of one stationary framed main
glass panel and one moveable framed main glass panel sliding in a horizontal
direction adjacent the stationary panel and which does not typically pivot.
The
weight of the patio door would require a substantial device in order to allow
for
the secured pivoting thereof. Such hardware would further eliminate or
minimize the door sagging out of position and the need for realignment of the
doors when pivoted back to the closed position. The pivoting of patio doors
would be quite attractive and would allow for the marketing of large French
type
doors in the industry. No such doors exist within the market place at the
present
time.
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Further within the prior art there is taught a tilt slider and the
hardware therefore as taught in United States Patent 4,888,915 issued December
26, 1989, United States Patent 5,168,665 and co-pending application 07/677,135
filed March 29, 1991 now United States Patent No. 5,927,014 manufactured and
distributed by Canadian Thermo Windows, whose office is in Toronto, Canada.
The manufacture of tilt and slide windows, double hung windows, patio doors,
and similar structures according to the teachings of the above mentioned three
references obviated many of the prior art problems which will generally occur
when any pivot block provided at the pivoting end of the window sash moves
out of alignment in relation to the upper or lower pivot block adjacent the
same
lineal of the closure member. The only means for securing the sash of the
window to the pivot block previously has been either a pin or strut. The
continuing motion and sliding of the windows back and forth and the pivoting
thereof causes the windows to misalign and sag under the weight of gravity
especially when manufactured in a vertical tilt slider. United States Patent
4,888,915 and the above mentioned other references overcame this problem by an
improved bracing system of the closure in the closure assembly by
interconnecting the shoes in a carrier assembly and including with some
embodiments a braking mechanism to ensure the window cannot slide when
pivoted or a locking mechanism to ensure that the window cannot pivot when
sliding in a track. In this way parallelism of the pivots whether stationary
or in
motion was assured by the required locking of the closure member. Such an
assembly although much improved over the prior art has the drawback of
requiring the user to latch and unlatch a number of levers to operate the
window
in its various modes of operation. This is primarily necessary to ensure that
the
pivots stay substantially parallel at all times so that for example the window
is
locked while pivoting thereby ensuring parallelism, or that the window is
locked
in the track while sliding also ensuring through the interconnection of the
shoes a
constant spacing and hence substantially parallel running as well. It is
therefore
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desirable to eliminate as much of the consumer interaction with the window
assembly as possible and make the operation as simple and fool proof as
possible.
Nowhere within the prior art is such a simplified improved device
provided which allows for the manufacture of heavier windows and doors in
larger sections without the sagging of the window and having reliable
operating
pivots incorporated in the assembly which both allows for the pivoting and
sliding of the window by the user without the need for a multiplicity of user
operated locks and latches.
Further in the manufacture of casement type windows there is
found a large number of links and levers depending on the manufacturer of the
window assembly. This renders the assembly costly to manufacture because of
the assembly labour required. Further with protruding handles the window is
prone to being damaged when shipped. One of the problems with known
casement assemblies is that they are difficult to clean on the outside. US
Patent
1,600,796 to Campbell addressed this concern. Further US Patent 1,341,366
endeavored to address this concern for casement windows. Final US Patent
5,289,656 attempted to improve on these previous structures. However the
systems do not provide for ease of installation and variation in the window or
door size which may be supported. Further the opening of the casement style
windows provided to clean the outside of the window is insufficient to provide
for all sizes of individuals and reaches.
It is therefore an object of this invention to overcome many of the
deficiencies in the prior art stated above which allows for smooth and simple
operation of a closure member which is capable of both sliding within a guide
channel and tilting upon a pivot assembly thereof.
It is a further object of this invention to overcome many of the
deficiencies in the prior art stated above which allows for smooth and simple
operation and assembly of a casement style window which is capable of both
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pivoting to an open position, and allowing the pivoting end to slide within a
guide channel to the opposite side of the frame within which the sash normally
pivots for easy cleaning thereof.
It is a further object of the invention to provide casement windows
of appropriate size and construction to replace existing double hung and/or
tilt
and slide windows.
It is a further object of the invention to provide a reliable carriage
for use in relation to a guide channel disposed within a frame for a closure
member and improvements therefore, whereby locking of the pivot when the
closure member is rotated is unnecessary to maintain parallelism of the
structure.
Further and other objects of this invention will become apparent to
a man skilled in the art when considering the following summary of the
invention and the more detailed description of the preferred embodiments
illustrated herein.
SUMMARY OF THE INVENTION
According to one aspect of the invention, there is provided a
closure assembly comprising a track and a slidable and pivotable closure
member, the closure member being engaged with the track proximate first and
second pivots adjacent the pivotable end of the member, the first and second
pivots being interconnected by a multiple segment shaft (for example at least
two
portions) (for example telescoping) which provides for accurate installation,
retention, removal, adjustment and alignment of the first and second pivots in
a
substantially parallel line for pivotally supporting the closure member so
that it
may be safely and securely pivoted away from the closure assembly, whereby the
first and second interconnected pivots are adapted to remain engaged with the
track while supporting the closure member both when it is pivoted away from
the closure assembly and when it is slidable relative to the track.
In one embodiment the closure assembly may further comprise a
carrier traveling within said track having interconnected first and second
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portions, the first portion being engaged with the pivots of the closure
member
and the second portion being spaced within the track from the first portion,
the
carrier to assist sliding movement and pivoting movement of the closure member
preferably wherein the interconnecting means are adjustable in length.
Preferably the first portion further comprises an opening within
which the first and second pivots are disposed to cooperate with the carrier
portion. Preferably the first and second pivot portions may further comprise a
rotatable pinion disposed therewith for facilitating the movement of the
carrier
relative to the track preferably in cooperation with a rack disposed with said
track. Preferably the closure member may further comprise latching means for
latching the closure member to prevent pivoting thereof when the closure
member is slidable relative to the track.
Preferably the closure member further comprises latching means
for latching the closure member to prevent pivoting thereof when the closure
member is slidable relative to the track wherein the latching means is a
central
locking member disposed with the closure member.
According to another aspect of the invention, there is provided a
pivoting and sliding closure assembly comprising:
i) an opening extending within a frame
ii) the frame having disposed therein or attached thereto track
portions extending in a substantially parallel direction to the extensions of
said
frame portions;
iii) at least one closure member slidable within said track
portions and pivotable at least one end thereof and latchable in the track at
the
other end thereof;
iv) each track portions having disposed therein at least two
pivot shoes adjacent the pivoting end of the closure member, each shoe being
substantially compatibly shaped with the track and having a top and bottom,
(preferably having rolling means disposed therein for assisting the movement
of
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the pivot shoe), each shoe adjacent the pivoting end of the closure member
having disposed therein an opening extending from the top toward the bottom
of the carrier wherein pivot means are disposed, said pivot means being
interconnected by a multiple segment shaft (for example at least two portions)
(for example telescoping) which provides for accurate installation, retention,
removal, adjustment and alignment of the first and second pivots in a
substantially parallel line for pivotally supporting the closure member for
safe
and secure pivoting away from the closure assembly;
v) the closure member having latching means provided
therewith for latching the at least one closure member in relation to the
track to
prevent the closure member from pivoting upon its pivot means when the
closure member remains slidable with said track
vi) the at least one closure member being braced from sagging
by the multiple segment shaft interconnecting the pivot means disposed with
each track, the substantially parallel line of the pivots provided by the a
multiple
segment shaft preventing the pivot means from sagging and/or disengaging
from the relevant track when the at least one closure member is rotated to an
open position and/or when it remains slidable within said track. Preferably
the
pivots may further comprise a rotatable pinion for facilitating the movement
of
the carrier relative to the track preferably in cooperation with a rack
disposed
with said track. Preferably the closure member further comprises latching
means
for latching the closure member to prevent pivoting thereof when the closure
member is slidable relative to the track wherein the latching means is a
central
locking member disposed with the closure member.
Preferably said closure member may further comprise a window
sash being a casement, double hung, or tilt and slide installation or, a door
or a
patio door.
According to another aspect of the invention, there is provided a
pivoting and sliding closure assembly comprising:
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i) an opening extending within a peripheral frame said
peripheral frame including a header portion, a sill portion and two vertically
extending jamb portions;
ii) the sill and header portions or the two jamb portions having
disposed therein or attached thereto track portions extending in a
substantially
parallel direction to the extensions of said peripheral frame portions;
iii) at least one closure member slidable within said track
portions and pivotable at least one end thereof and latchable in the track at
the
other end thereof;
iv) each track portions having disposed therein at least two
pivot shoes adjacent the pivoting end of the closure member, each shoe being
substantially compatibly shaped with the track and having a top and bottom
(preferably having rolling means disposed therein for assisting the movement
of
the pivot shoe), each shoe adjacent the pivoting end of the closure member
having disposed therein an opening extending from the top toward the bottom of
the carrier wherein pivot means are disposed, said pivot means being
interconnected by a multiple segment shaft (for example at least two portions)
(for example telescoping) which provides for accurate installation, retention,
removal, adjustment and alignment of the pivots in a substantially parallel
line
for pivotally supporting the closure member for safe and secure pivoting away
from the closure assembly;
v) the closure member having latching means provided
therewith for latching the at least one closure member in relation to the
track to
prevent the closure member from pivoting upon its pivot means when the
closure member remains slidable with said track;
vi) the at least one closure member being braced from sagging
by the multiple segment shaft (for example at least two portions) (for example
telescoping) which provides for accurate installation, retention, removal,
adjustment and alignment interconnecting the pivot means disposed with each
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track, the substantially parallel line of the pivots provided by the multiple
segment shaft preventing the closure member from sagging and/or disengaging
from the relevant track when rotated to an open position or when it remains
slidable within said track. In one embodiment said closure member is a window
sash being a casement, double hung, or tilt and slide installation. In another
embodiment said closure member is a door and preferably a patio door.
Preferably the pivots may further comprise a rotatable pinion for facilitating
the
movement of the carrier relative to the track preferably in cooperation with a
rack disposed with said track. Preferably the closure member may further
comprise latching means for latching the closure member to prevent pivoting
thereof when the closure member is slidable relative to the track wherein the
latching means is a central locking member disposed with the closure member.
According to yet another aspect of the invention there is provided
for use in a pivoting and sliding closure assembly, a closure member slidable
within a guiding channel and pivotable therefrom, the closure member having a
substantially rectangular frame having a top and bottom, and having engaged at
its top and bottom at one end pivots for engaging a first and second shoe, and
having disposed at the other end thereof proximate its top and bottom user
accessible means for engaging the guiding channel (preferably wherein said
user
accessible means is a central lock);
said shoes being slidable in said guiding channel and comprising a
substantially rectangular body having a top and bottom (preferably made from
thermoplastic material) and preferably having disposed proximate the bottom
thereof at least one roller or wheel), said shoes having disposed therewith
pivot
means (preferably the pivot means may further comprise a rotatable pinion for
facilitating the movement of the carrier relative to the track preferably in
cooperation with a rack disposed with said track) to engage with the shoes,
said
pivot means being interconnected by a multiple segment shaft (for example at
least two portions) (for example telescoping) which provides for accurate
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installation, retention, removal, adjustment and alignment of the pivot means,
each shoe having an opening for said pivot means, the opening extending from
proximate the top towards the bottom of said shoe, whereby the closure member
upon the pivot means pivoting away from the guide channel is braced from
sagging by the a multiple segment shaft (for example at least two portions)
(for
example telescoping) which provides for accurate installation, retention,
removal,
adjustment and alignment and interconnecting of the pivot means disposed with
each channel, the substantially parallel line of the pivots provided by the
multiple segment shaft (for example at least two portions) (for example
telescoping) preventing the closure member from sagging and/or disengaging
from the relevant track when rotated to an open position or when it remains
slidable within said track. In one embodiment said closure member is a window
sash being a casement, double hung, or tilt and slide installation. In another
embodiment said closure member is a door and preferably a patio door.
According to another aspect of the invention, there is provided a
closure assembly comprising a track and a slidable and pivotable closure
member, the closure member being engaged with the track proximate first and
second pivots adjacent the pivotable end of the member, the first and second
pivots being connected by a cable system connecting the upper and lower pivot
shoes to move in and be maintained in substantially parallel positions at all
times
to retain and align the first and second pivots in a substantially parallel
line for
pivotally supporting the closure member so that it may be safely and securely
pivoted away from the closure assembly, whereby the first and second connected
pivots are adapted to remain engaged with the track while supporting the
closure member both when it is pivoted away from the closure assembly and
when it is slidable relative to the track.
According to another aspect of the invention, there is provided
hardware for a closure assembly having a track and a slidable and pivotable
closure member, the closure member being engaged with the track proximate
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first and second pivots adjacent the pivotable end of the member, the hardware
comprising the first and second pivots being interconnected by a multiple
segment shaft (for example at least two portions) (for example telescoping)
which
provides for accurate installation, retention, removal, adjustment and
alignment
of the first and second pivots in a substantially parallel line for pivotally
supporting the closure member so that it may be safely and securely pivoted
away from the closure assembly, whereby the first and second interconnected
pivots are adapted in use to remain engaged with the track while supporting
the
closure member both when it is pivoted away from the closure assembly and
when it is slidable relative to the track.
According to another aspect of the invention, there is provided
hardware for a closure assembly having a track and a slidable and pivotable
closure member, the closure member being engaged with the track proximate
first and second pivots adjacent the pivotable end of the member, the hardware
comprising the first and second pivots being connected by a cable system
connecting the upper and lower pivot shoes to move in and be maintained in
substantially parallel positions at all times to retain and align the first
and second
pivots in a substantially parallel line for pivotally supporting the closure
member
so that it may be safely and securely pivoted away from the closure assembly,
whereby the first and second connected pivots are adapted to remain engaged
with the track while supporting the closure member both when it is pivoted
away from the closure assembly and when it is slidable relative to the track.
According to yet another aspect of the invention there is provided a
resiliently biased lock and handle which normally locks the shaft of any of
the
aforementioned embodiments in operation until the handle is operated by a user
wherein the lock is disengaged from the shaft and allows the shaft to rotate
and
when the handle is released again locks the shaft allowing for continuous
locking
of the window at any position.
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In an embodiment of the aforementioned invention in the
preceding paragraphs when embodied in a tilt and slide or double hung window
the inside rack portions provided within the track of the assembly, which
extend
the full width of the frame, curve towards the stationary closed position for
the
window assembly and provide a closed window assembly in which both sashes
are oriented in a straight line.
In an embodiment of the aforementioned invention in the
preceding paragraphs when embodied in a tilt and slide, casement or double
hung window a retractable screen is provided disposed within the header or
jamb of the assembly which accumulates on and pays out from a spring biased
roll disposed within said header or jamb, the screen being retractable for
egress
or cleaning purposes, and available as desired by providing a detent on the
sill
engageable with the screen when in its operatable position.
In an embodiment of the aforementioned invention in the
preceding paragraphs when embodied in a casement window a link having two
ends is fastened at one end proximate the center of the bottom of the window
sash and proximate the other end adjacent the end of the sill of the window
frame to allow for full operation of the casement window from a fully closed
to a
fully open position and the movement of the pivoting end of the window
towards the opposite end so as to allow full access to the outside of the
window
and the easy cleaning thereof. In another embodiment the link is removable to
allow total reversing of the window for cleaning and/or removal purposes.
In another embodiment of the invention the rack disposed with the
track is made from aluminum and formed in three separate steps so as to
minimize the amount of vertical creeping of the rack when formed. The rack
also
acts as a liner to distribute the load of the sash and minimize distortion of
the
vinyl track.
According to the following improvements of the invention
reference is made to the previous structures described substantially in the
first
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eleven paragraphs of this disclosure. Whenever reference is made below to the
structures or invention of the "above mentioned paragraphs" or "described
above" or the like its is intended to refer the reader primarily to the
paragraphs
of the improvements to the summary of invention and the structures defined
therein immediately following this paragraph.
According to yet another aspect of the invention there is provided a
closure assembly comprising a track and a slidable and pivotable closure
member,
the closure member being engaged with the track proximate first and second
pivots
adjacent the pivotable end of the member, the first and second pivots being
interconnected by a multiple segment shaft (for example at least two portions)
(for
example telescoping) which provides for accurate installation, retention,
removal,
adjustment and alignment of the first and second pivots in a substantially
parallel
line for pivotally supporting the closure member so that it may be safely and
securely pivoted away from the closure assembly, whereby the first and second
interconnected pivots are adapted to remain engaged with the track while
supporting the closure member both when it is pivoted away from the closure
assembly and when it is slidable relative to the track. Preferably the first
and
second pivot portions further comprise a rotatable pinion disposed therewith
for
facilitating the movement of the carrier relative to the track. In a preferred
embodiment wherein the rotatable pinion moves in cooperation with a rack
disposed with said track. The closure assembly may further comprise a window
sash being a casement, double hung, or tilt and slide installation or, a door
or a patio
door.
According to yet another aspect of the invention there is provided a
pivoting and sliding closure assembly comprising:
i) an opening extending within a frame
ii) the frame having disposed therein or attached thereto a first and
second track portion extending in a substantially parallel direction to the
extensions
of said frame portions;
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iii) at least one closure member slidable within said track portions
and pivotable at least one end thereof and latchable in the tracks at the
other end
thereof;
iv) each track portions having disposed therein a pivot shoe
adjacent the pivoting end of the closure member, said shoe being substantially
compatibly shaped with the track and having a top and bottom, (preferably
having
rolling means disposed therein for assisting the movement of the pivot shoe in
the
track), the shoe having disposed therein an opening extending from the top
toward
the bottom of the shoe wherein pivot means are disposed, said pivot means of
said
shoe disposed with said first track portion being interconnected with the
pivot
means of the shoe in the second track portion by a multiple segment shaft (for
example at least two portions) (for example telescoping) which provides for
accurate installation, retention, removal, adjustment and alignment of the
first and
second pivots in a substantially parallel line for pivotally supporting the
closure
member for safe and secure pivoting away from the closure assembly;
v) the closure member having latching means provided therewith
for latching the at least one closure member in relation to the track to
prevent the
closure member from pivoting upon its pivot means when the closure member
remains slidable with said track
vi) the at least one closure member being braced from sagging by th
multiple segment shaft interconnecting the pivots disposed with the pivot shoe
of
each track , the substantially parallel line of the pivots provided by the a
multiple
segment shaft preventing the pivots from sagging and/or disengaging from the
relevant track when the at least one closure member is rotated to an open
position
and/or when it remains slidable within said track. Preferably the pivots
further
comprise a rotatable pinion for facilitating the movement of the shoe or
carrier
relative to the track. In one embodiment the pinion moves in cooperation with
a
rack disposed with said track. The closure assembly may further comprise a
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window sash being a casement, double hung, or tilt and slide installation or,
a door
or a patio door.
According to still yet another embodiment of the invention there is
provided a pivoting and sliding closure assembly comprising:
i) an opening extending within a peripheral frame said peripheral
frame including a header portion, a sill portion and two vertically extending
jamb
portions;
ii) the sill and header portions or the two jamb portions having
disposed therein or attached thereto first and second track portions extending
in a
substantially parallel direction to the extensions of said peripheral frame
portions;
iii) at least one closure member slidable within said track portions
and pivotable at least one end thereof and latchable in the track at the other
end
thereof;
iv) each track portions having disposed therein a pivot shoes
adjacent the pivoting end of the closure member, said shoe being substantially
compatibly shaped with the track and having a top and bottom, (preferably
having
rolling means disposed therein for assisting the movement of the pivot shoe),
said
shoe having disposed therein an opening extending from the top toward the
bottom
of the carrier wherein pivot means are disposed, said pivot means for said
shoes
disposed within said first and second tracks being interconnected by a
multiple
segment shaft (for example at least two portions) (for example telescoping)
which
provides for accurate installation, retention, removal, adjustment and
alignment of
the pivots in a substantially parallel line for pivotally supporting the
closure member
for safe and secure pivoting away from the closure assembly;
v) the closure member having latching means provided therewith
for latching the at least one closure member in relation to the track to
prevent the
closure member from pivoting upon its pivot means when the closure member
remains slidable with said track;
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vi) the at least one closure member being braced from sagging by the
multiple segment shaft (for example at least two portions) (for example
telescoping)
which provides for accurate installation, retention, removal, adjustment and
alignment interconnecting the pivot means disposed with each track, the
substantially parallel line of the pivots provided by the multiple segment
shaft
preventing the closure member from sagging and/or disengaging from the
relevant
track when rotated to an open position or when it remains slidable within said
track.
In one embodiment said closure member is a window sash being a casement
installation. In another embodiment the closure member is a window sash being
a
double hung, or tilt and slide installation. Preferably the pivots further
comprise a
rotatable pinion for facilitating the movement of the carrier relative to the
track, and
in one embodiment wherein said pinions move in cooperation with a rack
disposed
with said track.
According to yet another aspect of the invention there is provided for
use in a pivoting and sliding closure assembly, a closure member slidable
within a
guiding channel and pivotable therefrom, the closure member having a
substantially
rectangular frame having a top and bottom, and having engaged at its top and
bottom at one end pivots for engaging a first and second shoe, and having
disposed
at the other end thereof proximate its top and bottom user accessible means
for
engaging the guiding channel (preferably wherein said user accessible means is
a
central lock);
said shoes being slidable in said guiding channel and comprising a
substantially rectangular body having a top and bottom (preferably made from
thermoplastic material) and preferably having disposed proximate the bottom
thereof at least one roller or wheel), said shoes having disposed therewith
pivot
means (preferably the pivot means may further comprise a rotatable pinion for
facilitating the movement of the shoe relative to a track provided with said
guiding
channel and preferably in cooperation with a rack disposed with said track) to
engage with the shoes, said pivot means being interconnected by a multiple
segment
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shaft (for example at least two portions) (for example telescoping) which
provides
for accurate installation, retention, removal, adjustment and alignment of the
pivot
means, each shoe having an opening for said pivot means, the opening extending
from proximate the top towards the bottom of said shoe, whereby the closure
member upon the pivot means pivoting away from the guide channel is braced
from
sagging by the a multiple segment shaft (for example at least two portions)
(for
example telescoping) which provides for accurate installation, retention,
removal,
adjustment and alignment and interconnecting of the pivot means disposed with
each channel, the substantially parallel line of the pivots provided by the
multiple
segment shaft (for example at least two portions) (for example telescoping)
preventing the closure member from sagging and/or disengaging from the
relevant
track when rotated to an open position or when it remains slidable within said
track.
In one 'embodiment the pivot means further comprises a rotatable pinion for
facilitating the movement of the carrier relative to the track and preferably
wherein
said pinion moves in cooperation with a rack disposed with said track.
According to yet another aspect of the invention there is provided
hardware for a closure assembly having a track and a slidable and pivotable
closure
member, the closure member being engaged with the track proximate first and
second pivots adjacent the pivotable end of the member, the hardware
comprising
the first and second pivots being interconnected by a multiple segment shaft
(for
example at least two portions) (for example telescoping) which provides for
accurate
installation, retention, removal, adjustment and alignment of the first and
second
pivots in a substantially parallel line for pivotally supporting the closure
member so
that it may be safely and securely pivoted away from the closure assembly,
whereby
the first and second interconnected pivots are adapted in use to remain
engaged
with the track while supporting the closure member both when it is pivoted
away
from the closure assembly and when it is slidable relative to the track.
Preferably the hardware may be embodied in a casement window
wherein a link having two ends is fastened at one end proximate the center of
the
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bottom of the window sash and proximate the other end adjacent the end of the
sill
of the window frame to allow for full operation of the casement window from a
fully
closed to a fully open position and the movement of the pivoting end of the
window
towards the opposite end so as to allow full access to the outside of the
window and
the easy cleaning thereof. In another embodiment the link is removable to
allow
total reversing of the window for cleaning and/or removal purposes.
According to another aspect of the invention the inventions described
in the last six paragraphs may be embodied in a tilt and slide, casement or
double
hung window wherein a retractable screen is provided disposed within the jamb
of
the assembly which accumulates on and pays out from a spring biased roll
disposed
within said jamb, the screen being retractable for egress or cleaning
purposes, and
available as desired by providing a detent on the sill engageable with the
screen
when in its operatable position.
According to another aspect of the invention the inventions
described in the last six paragraphs the rack disposed with the track is made
from aluminum and formed in three separate steps so as to minimize the amount
of vertical creeping of the rack when formed and preferably wherein the rack
also
acts as a liner to distribute the load of the sash and minimize distortion of
the
vinyl track.
In a preferred embodiment of the invention described above, the frame
portions, for example the headers, vertical jambs or sills are formed
separately from
the track. The track includes an integral rack portion proximate one side
thereof,
said rack portion including a plurality of teeth extending substantially from
end to
end of said track, and for engagement with the rotatable pinion of said
carrier which
facilitates the movement of the carrier relative to the track. The track is
fixed in
position relative to the headers, sills and/or jambs by the provision of two
supplementary portions. The first supplementary portion is a block which has
two
ends, a top and a bottom, the block having disposed in use proximate the top
thereof
opening to receive fasteners which opening extend to the bottom of the block.
The
CA 02218640 2002-06-03
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fasteners are for engagement with the frame portion and preferably the wooden
base
portions of the frame and are provided to lock the first block in position in
relation
to the end of the track remote the pivoting end of the closure member, and
thereby
fixing the track in position. The first block has disposed therewith an
adjuster
moveable in relation to said block in a direction extending towards said track
and
preferably rotatable, said adjuster being engageable with a second
supplementary
portion, and preferably a nut portion having track shaped abutting portions
proximate one side thereof, and for engagement with said track. The second
portion
has elements provided therewith which are engageable with said adjuster and
said
track, said adjuster being moveable in position to move the track abutting
portions
in relation to the rack provided with the track, wherein movement of said
adjuster
will move said second portion and preferably said nut in relation to said
track and
said rack in a direction toward and away from the block thereby adjusting the
position of said track in relation to said frame portions and thereat fixing
said rack in
position. The main advantage of providing such an adjustment for the track is
to
establish and allow for the alignment or adjustment of the closure member and
to
maintain the parallelism of the carrier in relation to for example both a
bottom and a
top track in the case of a tilt and slide or casement window, or the left and
right side
in the case of a double hung widow, so that the pivots remain substantially
parallel
and square to one another. Aluminum is preferably used for the track since it
is able
to take the weight of the window more readily than vinyl or other plastic
material.
The track may be formed from the previously mentioned three separate steps so
as
to minimize the amount of vertical creeping of the rack when formed. In a
preferred
embodiment, the adjuster is a rotatable cap screw preferably having an opening
therein for an alien key, and which is contained within an opening proximate
one
end of the first block remote the track and wherein said cap screw is threaded
into
the second block or preferred nut, wherein rotation of the screw in relation
to the
fixed block, for example by an alien key, will cause the second block or
preferred nut
to move fore and aft in relation to the track and provide for a final
adjustment or
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readjustment of the track in relation to the carrier in both the top and
bottom or side
tracks of the window system depending on what window system is used.
Preferably
the block is manufactured from aluminum, and the adjuster nut is manufactured
from Delrin(TM). In another embodiment, the block and nut are manufactured
from
fiber filled nylon. In a preferred embodiment of the invention, both the first
block
and second nut further comprise a detent, for example a right angled triangle
notch
proximate the top thereof for engagement with a lock in use for a pivoting
window,
the lock being compatible with the detent. The blocks therefore provide a
reinforced
portion of the window frame against which the lock may abut in use. Otherwise
the
lock would engage only a vinyl flange of the sill or header for example, and
the
window load may in time tear or distort said flange to render it useless.
In another a preferred embodiment of the invention, the rack formed
integral with the track further comprises an upstanding flange disposed
proximate
one side of the track wherein the rack is disposed having a plurality of teeth
for
I S engagement with the pinion gear of the carrier. Preferably the rack is
formed by a
three-step process to minimize the amount of vertical creeping of the
preferred
aluminum material. Preferably a pivot shoe is provided for engagement with
said
rack and track further comprising a carrier having a top and a bottom, the
carrier
having disposed proximate the bottom thereof means, and preferably slots, for
retaining rollers, and the rollers in use thereof for providing the smooth
movement
of the carrier within the track, preferably the rollers being engaged with a
predetermined channel formed in said track, said carrier also having an
opening
disposed proximate the top thereof wherein a pivot gear is disposed, said
pivot gear
having a top and a bottom and having disposed primate the top thereof a pivot
engaging portion for engaging the pivot of a closure member such as a window
sash,
said pivot gear having disposed proximate the bottom thereof an anti-thrusting
wheel portion for engagement with a shoulder provided proximate each side of
the
track channel, for example to engage the shoulder of the channel as a result
of thrust
which may be caused by the wind load on the closure member and the normal
thrust
CA 02218640 2002-06-03
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caused by meshing of gears, the anti-thrusting wheel preferably being of a
predetermined diameter of a dimension less than the channel of the track so as
to
minimize drag in the track, said pivot gear having disposed intermediate said
pivot
engaging portion and said anti-thrust wheel portion a pinion gear portion for
engaging the rack, wherein the previously described closure member and
specifically the pivots thereof engages with the carrier portion, wherein
movement
of said carrier portion will affect rotation of said pinion in relation to
said track and
the smooth movement of the carrier along the track maintaining the
parallelism, of
said upper and lower pinions for the case of both a tilt and slide and
casement
window, and said left and right pinions in the case of double hung windows.
Preferably said carrier portion is made from Delrin(TM), and said pivot gear
portion
is made from nylon. The anti-thrust wheel portion is provided to engage the
shoulders provided adjacent the recess of the track to accommodate any
thrusting of
the pinion which might occur, due to wind loading or the like and the rotation
of the
gears, and to maintain the pinion substantially central in relation to the
carrier at all
times. The rollers provided proximate the bottom of said carrier are to ensure
smooth movement of the carrier in relation to the track. Preferably the
rollers are
made from metal.
In another preferred embodiment of the invention, the vinyl profile
forming the closure member (for example a sash profile) may further comprise a
cover disposed on the side of the profile opposite the glass, which cover
extends
substantially along the length of the profile and which has disposed proximate
the
sides thereof two flanges for locking engagement underneath flanges provided
with
the profile, said profile further including a space defined within said
profile enclosed
by said plastic cover, preferably said space containing in use a closed cell
foam or the
like, for example a closed cell caulking foam, which is compressible, said
plastic
cover having disposed proximate the bottom thereof intermediate said flanges
spring-loaded members, for example fingers, engageable with said foam, and
preferably when installed slightly loading said foam to create a spring biased
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resistance of the foam against the cover further locking the cover in position
with the
profile. Preferably the cover is made from thermoplastic or thermoset material
and
when installed extends down from said profile toward the space defined within
said
track portion between the flanges thereof. The cover provides a locking
flexible seal
throughout the length of the closure member with the exception of the area
adjacent
the carrier portion located proximate the pivoting end of said closure member.
In
various embodiments of the invention, the cover may be embodied with a
casement
window, a tilt and slide window and a double-hung window. The use of a closed
cell foam such as caulking foam or the like in the space within the profile
provides
resilience and strength to the cover along the length of the profile and
therefore
allows for the foam and cover together to provide a surface upon which the
closure
member may travel while the carrier moves in the track. Also, the cover
behaves as
a seal for the profile and in use indirectly for the track to keep dust and
other
undesirable elements out of the track and out of the profile, and assists to
prevent
passing cold air.
According to yet another aspect of the invention and in a preferred
embodiment thereof, there is provided a release mechanism for locking a
closure
member from pivoting movement in a closure assembly, the closure member being
carried by the carrier described in the above paragraphs, said release
mechanism
further comprising operating means disposed with the closure member, and
preferably with the window sash elements, said operating means may be provided
intermediate the lockable ends of the closure member, and accessible to the
user. For
example, when the closure member is provided within a tilt and slide window,
the
operating means will generally be disposed in a vertical plane provided with a
vertical sash element so that the operating member when operated will cause
the
locking and unlocking of the tilt and slide window and allow free movement
thereof. When the operating means is provided in a double-hung window, the
operating means may be a handle disposed in a horizontal plane and being
operable
by the user to and from a locked and released position to allow movement of
the
CA 02218640 2002-06-03
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double-hung window, for example, pivoting thereof to access the exterior pane
surface and provide cleaning thereof. In another embodiment when the closure
member is a casement window sash, the operating member may be disposed in a
substantially vertical direction and is operable by the user to and from a
locked and
unlocked position, the operating means being user operable to and from a first
locked position and a second unlocked position. In all cases, bi-directional
locking
means are provided with the sash profile and being moveable by the operation
of
said operating means to cause locking portions engaged with said bi-
directional
locking means to move in and out of engagement with track portions (and in one
embodiment the previously described block and nut portions) disposed proximate
at
least two opposed locations of said closure assembly, and when the window is a
casement window further locking action resulting from the engagement of a
third
portion in and out of locking engagement with a locking detent provided
adjacent
the jamb wherein the window sash is contained. The operation of the operating
means in a first direction causes the locking portion to move out of
engagement
with, the track portions or the detent provided with the track portion, and
when a
casement window is in use, the locking detent adjacent to the jamb, to
therefore
allow pivoting movement of the closure member. Movement of the operating means
in the second direction causes the locking portions to move into engagement
with
the track portions or the detent provided with the track portion and therefore
prevent the pivoting movement of the closure member. In a preferred
embodiment,
the release mechanism for locking a closure member includes a handle portion
which has provided proximate one end thereof a handle and proximate the other
end thereof a pinion, said pinion being engageable with a rack portion
proximate
one side thereof and a second rack portion proximate the other side thereof,
said
rack portions being engaged with locking portions which extend to the track or
detent provided with the track in use to latch and unlatch the closure
assembly, for
example the window. When a casement window embodies the release mechanism,
the pinion portion also engages one of the rack portions which further engages
a
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second pinion rotatable by the motion of the second rack, the second pinion
being
engageable with a latch portion including a pinion sector provided therewith,
causing the rotation of the latch portion into and out of engagement with a
detent
portion provided proximate the jamb of a casement window assembly, said single
handle therefore operating both the locks proximate the track portion and when
a
casement window is used the lock proximate the jamb portion.
According to yet another aspect of the invention of the casement
window assembly described above, there is provided a casement window assembly
further comprising a jamb portion located proximate the pivoting end of the
casement window preferably said window including a clip in flexible cover for
the
sash, said jamb portion including a pocket portion extending substantially
towards
the casement window sash and providing a pocket for the pivoting end of the
casement window wherein said carrier is disposed in use, thereby providing a
recess
or pocket within which the closed casement window prpximate the pivoting end
thereof is located and when a cover is provided with the sash to snap fit into
to
improve the seal and weatherproofing of the casement window, said pinion upon
pivoting of the casement window causing the rotation of said gears and the
sliding
motion of the pivoting end of the window away from the jamb pocket thereof to
prevent binding of the pivoting end with the pocket extending with the jamb
portion, thereby providing the sealing improvements to the casement window,
wherein when the casement window is moved to the closed position, the pivoting
end will move back into the pocket provided.
According to yet another aspect of the invention, there is provided a
conversion kit for a frame opening to convert a, a double-hung window or a
tilt and
slide window to a casement window assembly, said conversion kit comprising
framing portions for containing track portions engageable with the framing
portions
of the window frame section (for example header and sill, or two vertical jamb
members), said track portion, preferably being made from aluminum, and
including
a rack portion proximate at least one side thereof, a casement window sash
having a
f
CA 02218640 2002-06-03
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carrier and interconnecting pivot assembly provided therewith substantially as
described above, and for insertion and operation with respect to the track
portions of
the frame, wherein said casement window fully fills the space occupied by the
previously installed double-hung or tilt and slide window, and the jamb, sill,
and
header portions are installed in the space provided. Typically, casement
windows
known today are narrow and of standard sizes. The known prior art hardware
therefore provided prohibits the installation of a casement window where
double
hung or tilt and slide windows were previously installed. The present
invention
however opens up the possibility of changing window types as the consumer
desires. Therefore, the existing window assembly is stripped out down to the
wooden frame section. The installer installs the vinyl header sill and jamb
section to
the wooden frame chambers. The tracks are then installed, and preferably using
the
block and nut portions previously described, the block portion being screwed
into
the vinyl sill and header and the wooden frame members. The hardware with the
carriers and interconnected pivots are then installed with the sash and
squared in
position. The window sash includes in the preferred embodiment the central
locking
handle and racks and pinions contained in the sash adjacent the opening end
and
contains the interconnecting shaft for the pivots. The casement window
therefore
replaces the previous window installation. Preferably a screen is provided
with the
vertical jamb on the inside of the casement window which can be extended and
retracted in position to cover a window opening when the casement is open and
to
retract when the window is closed.
According to yet another aspect of the invention, there is provided a
method of assembling a window sash, said window sash being used with a
casement, tilt and slide or double-hung window and being interchangeable and
of
standard construction with respect to the various window sashes required, said
method comprising:
(1) forming the sash element according to the standard profile, said
standard profile comprising a generally rectangular "I" shaped member
CA 02218640 2002-06-03
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having a center reinforcement comprising an inner and an outer wall
and a hollow therebetiveen and having extending from the ends of
these inner and outer walls proximate both the top and bottom thereof
substantially "I" shaped members extending substantially horizontally
in profile extending along the length of the sash element also having
inner and outer walls and a hollow therebetween, the sash element
having provided proximate one end thereof flanges extending
inwardly toward one another for receiving a dust cover or auxiliary
member fastening thereto and having located proximate the other end
thereof a glass engaging recess, the cover or auxiliary member being
fastened to the sash profile and being variable from window style to
window style,
(2) inserting the glass within the glass receiving portion of the sash
elements and,
(3) connecting said sash elements with interior corner connectors having a
quick fastening feature which are inserted within the central opening
of the sash profiles provided and provide a one-way friction fit for
connecting the corners proximate the interior of the sash element ,
wherein said sash may be used for a tilt and slide window, double-hung window,
or
casement windows.
A method therefore of assembling the window is provided wherein,
the sash components are assembled around a typical sealed double pane window
glass by the quick fastening feature of the corner locking portions which are
inserted
within the opening of the sash profiles provided and provide one-way friction
fit.
The closed cell caulking is therefore inserted within the top and bottom of
the sash
assembled and these portions are covered by track covers by the compression of
the
closed cell foam and the engagement of the tabs of the track cover with the
tabs of
the sash profile. The hardware is then installed along the vertical portions
of the
sash within the openings thereof opposite the glass which is then covered by a
sash
CA 02218640 2002-06-03
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cover portion provided. The hardware located proximate the pivoting end is
therefore installed on the carrier portions and inserted within the track
portion
within the sill and header, for example of a window assembly. The window is
therefore closed in position with the sash covers or track covers located
proximate
the sill and header snapping into the frame and closing any path for air to
enter the
window and pass the primary seals provided . The track covers also provide
blockage of light, air and the friction fit of the sash into the track
portions. By
providing a track cover along the track remote the pivoting end of the window,
this
track cover may be used as support as well for the window assembly.
According to another aspect of the invention of the casement window
described above, the casement window may further comprise a straight line
window
frame and assembly having a center mullion wherein casement windows are
disposed on each side of the mullion with the operating portions including the
carrier and interconnected pivot assembly and shafts thereof described above,
thereby providing a double-casement window, wherein said casement windows
pivot in substantially opposite directions, and provide a straightline window
when
in the closed position.
According to yet another aspect of the invention, there is provided a
cover for a tilt and slide window track, the track comprising a first half and
a second
half interconnected to provide a continuous track for the window, the first
half being
disposed below the closed window, and the second half being provided as a
continuation of the first half, the second half including the track cover
portion which
clips into position to engage the flange portions of the sill of the window
and
thereby provide support for the window as it glides along the second half of
the
track.
According to yet another aspect of the invention there is provided a
closure assembly having two ends comprising a first and second track disposed
proximate each end of the assembly respectively, and a slidable and pivotable
closure member, the closure member including framing sections therefor and
being
CA 02218640 2002-06-03
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engaged with the first and second tracks proximate first and second pivots
adjacent
the pivotable end of the member, the first and second pivots being adapted to
remain engaged with the first and second tracks while supporting the closure
member both when it is pivoted away from the closure assembly and when it is
slidable relative to the tracks, each of the first and second pivots including
a
rotatable pinion disposed therewith for facilitating the movement of the
closure
member relative to the track, wherein the rotatable pinion moves in
cooperation
with said track both when the closure member is pivoted away from the closure
assembly and when it is slidable relative to the tracks, said frame portions
being
formed separately from the track, the track including an integral rack portion
proximate one side thereof, said rack portion including a plurality of teeth
extending
substantially from end to end of said track, and for engagement with the
rotatable
pinion of said pivot which facilitates the movement of the closure member
relative to
the track, the track being fixed in position relative to the frame portions by
the
provision of two supplementary portions, the first supplementary portion being
a
first block which has two ends, a top and a bottom, the first block having
disposed
in use proximate the top thereof openings to receive fasteners wherein said
openings extend to the bottom of the first block, the fasteners for engagement
with
the frame portion of the frame and are provided to lock the first block in
position in
relation to the end of the track remote the pivoting end of the closure
member, and
thereby fixing the track in position, a second block having disposed therewith
an
adjuster moveable in relation to said first block in a direction extending
towards said
track, said adjuster being engageable with a second supplementary portion, for
engagement with said track, the second portion having elements provided
therewith
which are engageable with said adjuster and said track, said adjuster being
moveable in position to move the track abutting portions in relation to the
rack
provided with the track, wherein movement of said adjuster will move said
second
portion in relation to said track and said rack in a direction toward and away
from
the first block thereby adjusting the position of said track in relation to
said frame
CA 02218640 2002-06-03
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portions and thereat fixing said rack in position wherein such an adjustment
for the
track establishes and allows for the alignment or adjustment of the closure
member
and maintains the parallelism of the pivots in relation to said tracks so that
the
pivots remain substantially parallel and square to one another.
Preferably within the closure assembly the adjuster is a rotatable cap
screw preferably having an opening therein for an allen key, and which is
contained
within an opening proximate one end of the first block remote the track and
wherein
said cap screw is threaded into a second block or preferred nut, wherein
rotation of
the screw in relation to the fixed block, for example by an allen key, will
cause the
second block or preferred nut to move fore and aft in relation to the track
and
provide for a final adjustment or readjustment of the track in relation to the
carrier in
both the top and bottom or side tracks of the window system depending on what
window system is used.
Preferably said assembly may further comprise a second nut wherein
both the first block and the second nut include a detent, for example a right
angled
triangle notch proximate the top thereof for engagement with a lock in use for
a
pivoting window, the lock being compatible with the detent.
In a preferred embodiment said closure assembly includes opposed
detent portions disposed adjacent a track thereof, said release mechanism
comprising operating means disposed with the closure member, said operating
means being provided intermediate the lockable ends of the closure member, and
being accessible to the user, the operating means being disposed in a
predetermined
plane provided with a sash element so that the operating means when operated
will
cause the locking and unlocking of the closure member and allow free movement
thereof, the operating means being operable by the user to and from a locked
and
released position to allow movement of the closure member, the locking means
provided with the sash profile being moveable by the operation of said
operating
means to cause locking portions engaged with said locking means to move in and
out of engagement with the detent portions disposed proximate at least two
CA 02218640 2002-06-03
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opposed locations of said closure assembly, the operation of the operating
means in
a first direction causing the locking portion to move out of engagement with
the
detent provided with the track, to therefore allow pivoting movement of the
closure
member, the movement of the operating means in the second direction causing
the
locking portions to move into engagement with the detent provided with the
track
and therefore prevent the pivoting movement of the closure member.
According to yet still another aspect of the invention a release
mechanism for locking a closure member from pivoting movement in a closure
assembly is provided, said closure assembly including opposed detent portions
disposed adjacent a track thereof, said release mechanism comprising operating
means disposed with the closure member, said operating means being provided
intermediate the lockable ends of the closure member, and being accessible to
the
user, the operating means being disposed in a predetermined plane provided
with a
sash element so that the operating means when operated will cause the locking
and
unlocking of the closure member and allow free movement thereof, the operating
means being operable by the user to and from a locked and released position to
allow movement of the closure member, the locking means provided with the sash
profile being moveable by the operation of said operating means to cause
locking
portions engaged with said locking means to move in and out of engagement with
the detent portions disposed proximate at least two opposed locations of said
closure assembly, the operation of the operating means in a first direction
causing
the locking portion to move out of engagement with the detent provided with
the
track, to therefore allow pivoting movement of the closure member, the
movement
of the operating means in the second direction causing the locking portions to
move
into engagement with the detent provided with the track and therefore prevent
the
pivoting movement of the closure member.
Preferably the release mechanism for locking a closure member
includes a handle portion which has provided proximate one end thereof a
handle
and proximate the other end thereof a pinion, said pinion being engageable
with a
CA 02218640 2002-06-03
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rack portion proximate one side thereof and a second rack portion proximate
the
other side thereof, said rack portions being engaged with locking portions
which
extend to the track or detent provided with the track in use to latch and
unlatch the
closure assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic perspective view of a tilt and slide window,
wherein said windows move in a horizontal direction, illustrated in a
preferred
embodiment of the invention.
Figures 1A and 1B are partial schematic perspective views of
casement style windows embodying the invention and depicting the motion
thereof and illustrated in a preferred embodiment of the invention.
Figures 1C is a partial schematic perspective view of straight line
windows embodying the invention and depicting the motion thereof and
illustrated in a preferred embodiment of the invention.
Figures 1D is a partial cutaway view of the casement style
windows of Figure 1A depicting a rollaway screen thereof and illustrated in a
preferred embodiment of the invention.
Figure 2 is a front view of the window of Figure 1.
Figure 2a is a top view of the window of Figure 1.
Figure 2b is a end view of the window of Figure 1.
Figure 3 is a double hung window assembly utilizing hardware
similar to that of Figure 1 and illustrated in a preferred embodiment of the
invention.
Figure 4 is a perspective illustration of the hardware only for a
double hung window of Figure 3.
Figure 5 is an exploded perspective view of the components of the
hardware of Figure 4 to be installed in a double hung window assembly.
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Figure 6 is a carrier design illustrated in a preferred embodiment of
the invention which allows for ease of removal of a window from a window
assembly and illustrated in an exploded perspective view.
Figure 7 is an assembled view of the components of Figure 6.
Figure 8 is a tilt and slide window assembly primarily for the
hardware therefore and illustrated in an alternative embodiment of the
invention.
Figure 9 is a schematic view of the movement of the shoes of Figure
8 illustrated in alternative of the invention.
Figure 10 is a perspective illustration of a pulley arrangement
installed at the corners of the window assembly of Figure 8 and illustrated in
alternative embodiment of the invention.
Figure 11 is a close-up perspective view of a locking mechanism for
the shaft assembly 30 illustrated in a preferred embodiment of the invention.
Figure 12 is an end view of the locking mechanism of Figure 11
illustrated in a preferred embodiment of the invention.
Figure 13 is an end view of a locking block assembly illustrated in a
preferred embodiment of the invention.
Figure 13A is an end view of the track profile used in conjunction
with the lock block assembly of Figure 13 and illustrated in a preferred
embodiment of the invention.
Figure 13B is a top schematic view of the lock block assembly of
Figure 13 shown engaging the rack portion of the track and illustrated in a
preferred embodiment of the invention.
Figure 13C is a side cross-sectional view of the adjusting cap screw
used to adjust the track within the sill or header or jamb portions and
illustrated
in a preferred embodiment of the invention.
Figure 14 is a top view of the carrier for the shaft assembly of
Figure 17 and illustrated in a preferred embodiment of the invention.
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Figure 14A is a cross-sectional view through the diameter of the
opening 35b of Figure 14 illustrated in a preferred embodiment of the
invention.
Figure 15 is an top end view of the sash portions for a tilt and slide
window assembly from the opening end of the window and illustrated in a
preferred embodiment of the invention.
Figure 15A is a close up view of the section of the assembly of
Figure 15 where the sash abuts with the sill and illustrated in a preferred
embodiment of the invention.
Figure 16 is a schematic end view of a central locking system best
seen in Figure 17 and illustrated in a preferred embodiment of the invention.
Figure 16A is an end view of the central locking system of Figure
16.
Figure 16B specifically illustrates the latching plate and latch of the
central locking system and illustrated in a preferred embodiment of the
invention.
Figure 17 is an exploded perspective view of a window sash for a
tilt and slide or casement window illustrated in a preferred embodiment of the
invention.
Figure 18 is an exploded perspective view of the header, sill and
jamb portions of the window assembly illustrating the track and its
positioning in
relation to the sill and header and illustrated in a preferred embodiment of
the
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to Figure 1, 2 through 2b there is illustrated a tilt
and slide window assembly. Therefore the assembly 5 includes an outer frame
portion 10 which is normally hung within an opening established in a building
(not shown). Normally nailing flanges are provided for this purpose attached
to
the outer frame 10. The frame 10 includes top portions 17 and bottom portions
16
having tracks disposed therein, as best seen in relation to Figure 2. Within
the
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tracks are contained a pivot assembly which will be hereinafter described.
Primarily the pivot assembly includes a pinion 35 and carriers 38 and 37
interconnected by interconnecting portions 32 and 31 making up an
interconnecting member 30. The pinions move as the window 20 is slide in the
track portion by the movement of the pinion 35 with respect to the rack 18 or
19
respectively. In this way the pinions 35 being interconnected remain parallel
at
all times in their motion along the track within which the rack 19 or 18 is
disposed. The hardware is shown in normal view while the window assembly is
shown in dotted lines, to illustrate the essence of the assembly.
Referring now to Figure 2 there is illustrated the window of Figure
1, wherein a window 20 and 40 is slidable within a track 15 and 17 upon a shoe
39. The lower shoe 39 also is connected to a secondary show 39a for carrying
the
window which includes rollers 39b, 39a1 and 39b2 on the bottoms thereof
respectively for ease of movement within track 17. The pinion 35 rests within
the
shoe 39 as will be described hereinafter. The arrangement of the
interconnecting
portion 30 will also be described hereinafter. Window 40 therefore has its own
interconnected system as can be best seen in relation to Figures 2a and 2b.
Referring now to Figure 2a there is illustrated the sash elements 20
and 40 and the rack portions 19 and 19a which accommodate the motion of the
pinion 35 along a full length of the track, as best in Figure 2b.
Referring to Figures 1, 2 to 2b clearly the track portion 17 and 15
cooperate with the rack portions 19 and 19a to provide for the pinion 35 and
its
motion when the window remain slidable within the track. By interconnecting
the two pinion portions and hence the two pivot shoes, by interconnecting
means
30, the shoes remain in a substantially parallel position in relation to one
another
at all times. This overcomes the problem described in the background of the
prior art. By remaining parallel it is almost impossible for the window
therefore
to come out of the track when the window is pivoted to be cleaned and
therefore
is no longer necessary to provide braking portions as in previously described
CA 02218640 2002-06-03
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inventions of Canadian Thermo Windows, as referred to in the background of the
invention.
Referring to Figures 1A and 1B there is illustrated a casement style
window having similar components to that found in relation to Figure 1 with
the
exception of only one sash being provided being secured on shaft assembly 30
including portions 31 and 32. A link L is provided secured proximate ends L1
adjacent the center of the sash 21 proximate the bottom thereof and adjacent
the
track 18 adjacent the opening end of the window sash 21. By positioning the
sash
in this manner a full range of pivoting motion is available. If the link end
L1 is
removable than the window sash may be moved totally to the opposite end
remote the pivoting end 21b on shoe 39. As with the case of the tilt and slide
window a shoe 39 containing a pinion is provided. The pinion is connected to
the
shaft 30 and engages the rack 18 as it moves along the window sill and header
in
parallel arrangement between the upper and lower pivots maintained in parallel
by the shaft 30. In this manner the casement style window may be pivoted as
normal to an open position, and the pivoting end may be moved to the other end
of the window frame away from side 21b to allow ease of cleaning. By supplying
the hardware described without a casement sash the casement window may be
assembled without the need for expensive pivots and linkages and without a
great deal of assembly labour. As best seen in Figure 1D for the casement
style
window in particular a rollaway screen S may be provided which is housed in
jamb 17a as illustrated. The screen S pulls across to engage detent D1 with
detent
D2 in jamb 16a, whereat it may be locked. This allows a user to clean the
glass of
sash 21 on the inside without removing the screen.
Referring to Figure 1C there is illustrated a tilt and slide type
window similar to figure 1 with the exception that when closed the window
sashes will be oriented in a straight parallel line with one another. In order
for
this to happen the rack provided 18 includes a portion 18a made from fiber
filled
plastic or the like and joined at seam 18c to an aluminum track 18b. The sash
21 is
CA 02218640 2002-06-03
-35-
therefore moveable as previously described on carrier 39 and rollers 39a as
urged
by pinion 35 until the pinion reaches the curved portion of the track 18 a
wherein
the assembly 30 will move along the curve to the terminus of the track 18t.
The
sash portion 21a will then lock in behind the edge of the sash contained in
track
18' and be lockable at that position. The sash 21'(not shown) resides on
assembly
30' in track 18'. As pinion 35' moves within the limits of rack 18' the sash
21
cannot adopt a parallel position unless sash 21' is in its fully closed
position. Only
then can the end 21a adopt its fully closed position butting up against the
sash 21'
at the end opposite the carrier assembly 30 and 39.
Referring to Figure 3 there is illustrated a double hung window
assembly embodying the preferred embodiment of the hardware making up the
invention substantially equal to that which is disclosed in Figure 1, with the
exception that a coil spring 31a is provided around the connector portion 31
of
the interconnecting portion 30. By providing the interconnecting portion 31
with
a spring 31a it will no longer be necessary in a double hung window assembly
to
provide a sash balance, as the spring 31a is pre-loaded to provide the
necessary
tension, much the same as a spring which is used in a garage door. In this
example as a garage door goes up and down the spring is compressed and
tensioned depending on the motion of the door and therefore provides for the
return motion of the window assembly. Within the window assembly sashes 20
and 40 shown in ghost line are moveable with hardware substantially made up of
a pivot or pinion 35 moving on a rack 18 and 19 respectively and being
interconnected by the interconnecting portion 30.
Referring to Figures 4 and 5 there is illustrated the hardware which
is installed within the double hung window assembly of Figure 3. Pinions 35
therefore are provided, which seat within the carriers or shoes 39. The pinion
includes a shaped opening 35a which is compatible with the bar stock 34c and
32a proximate the ends thereof. The pinion therefore will ride on the rack 18
and
19 within shoe 39. Opposed supplementary portion 37 is provided to oppose the
CA 02218640 2002-06-03
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shoe 39 as it rides in the track. Therefore, referring to Figure 2b the
portion 37
and 38 may be readily seen. A combined ratchet and pawl assembly is provided
with portion 37 or at least connected therewith. The pawl assembly 37c is
resilient biased through the opening 37d of member 37 so as to release the
ratchet
34b of shaft 34 when the window is to be removed from the assembly. Proximate
the other end of the hardware there is provided a backing member 38 in a
unique
shaft extension 33 which includes portions 33b, 33d, 33c and 33a wherein the
shaft end 32a extends through. A locking nut 33e is provided to lock the
entire
hardware together and to allow for ease of separation thereof. An adjustable
connector 31b is provided proximate the other end which allows for adjustment
with regard to the length of section 32 of the shaft so as to allow variation
in the
sizes of the assembly supported. Portions 31, 31b, 32, and 33 makeup the shaft
assembly which allows for ease of installation, adjustment, alignment and
removal of the sash assembly. Also the hardware therefore described provides
for the interconnection of the pivot shoes proximate their sides and provides
for
parallel motion of the pivot shoes at all times thereby illuminating the need
to
lock the pivot shoes in the track assembly.
Referring to Figure 6 there is a description of a different shoe
construction which is useful when a window is removed, since the carrier will
be
locked in position when the window is removed for maintenance or for cleaning.
Therefore the shoe 39 includes a spring b and a recess therefor and a
supplementary portion 39d and a finger a therefore wherein teeth c are
provided
on supplementary portion 39d which teeth are biased by spring b against the
pinion 35 to thereby lock against pinion 35 and prevent the motion of the
carrier
when the window is removed. A sloped wall d is provided with the carrier
supplementary portion 39d which is engaged by a separate simple latching and
unlatching mechanism which thereby releases the supplementary portion away
from the pinion or toward the pinion when the latch is opened. Therefore when
the latch engages the supplementary portion d it will drive the supplementary
CA 02218640 2002-06-03
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portion 39d away from the pinion 35 thereby allowing free motion of the pinion
in normal circumstances. However when the latch is disengaged the portion 39d
will be free to move as biased by the spring b toward locking the pinion 35
via
the teeth c of the supplementary portion 39d. The alternate shoe of Figure 6
and
7 has an opening 39a within which the extension 35a passes to engage the
connecting member 30 as previously described. The rollers 39b engage with the
notches as shown to improve the motion of the carrier in the track.
Referring now to Figure 8, 9 and 10 there is illustrated an
alternative embodiment of the invention to maintain the carrier pivots 61, 65,
60
and 81 in substantially parallel alignment and thereby eliminate the need for
braking mechanisms. Figure 8 is illustrated as a tilt and slide frame in ghost
line
with the window 70 also shown in ghost line having pivot 75 and 71. The pivots
75 and 71 engage with openings within the shoe 61 and 65 in the manner which
is
known. These pivot pins 75 and 71 may be removed from these shoes merely by
retracting them from their locked positions. The sash 70 therefore is moved on
the carrier 81, 82 and 83 proximate the bottom thereof in the track portions
as
shown and within carrier 60 on the top thereof. A similar sash arrangement
would be arranged for the other shoes as well but for simplicity sake this is
not
illustrated. The important aspect is that a cable 91 is connected to the
carrier 60
and the carrier assembly 81, 82 and 83 substantially as shown in Figure 9, so
that
when the window moves toward the right hand side of the drawing that both
carriers will move an equal amount by the movement of the cable maintaining
the pivots 75 and 71 within the shoes 60 and 81 substantially parallel at all
times.
Similarly, a cable 90 is provided which moves in conjunction with the carrier
63,
62 and 61 and the shoe 65, as best seen in Figure 9, so that as the shoe 65 is
moved
in a direction D2 that the carrier 61, 62 and 63 will also be moved in the
direction
D2. Figure 9 therefore shows the path of the cable connecting the carrier
described above.
CA 02218640 2002-06-03
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In order to allow for the movement of the cable the unique pulley
arrangement is illustrated in Figure 10 wherein the cable will travel through
the
respective channels 107, 108 and 105a within the wheel 105, or through 106,
104,
105a within the opposite wheel or pulley 105. Assembly 101 is therefore
provided which is affixed within the window frame via opening 101a and a
fastener, not shown, which assembly allows for the movement of the cable and
hence the carriers in a manner as best seen in Figure 9.
Referring now to figures 11 and 12 there is provided a locking
mechanism for the shaft 30 which may be used with any lousier assembly. A
handle assembly H is provided including a stationary portion H2 fixed to the
sash 21 and a moveable spring biased portion H1 biased to a continual locked
position via spring leaf S2. The handle portion H1 includes a pivot H4 and
detent
portions H5 and H6. Normally the spring S2 will cause the handle portion H1 to
remain in engagement at detents H5 and H6 with gear portion or serrations 30Z
of the shaft 30. Therefore the window or door is locked in that position and
cannot be pivoted or slid. When a user engages the handle H1 and presses it
towards H2 the detents H5 and H6 release from the gears 30Z and hence the
window or door may be repositioned as desired. At that repositioned location
when the user releases the handles the window or door will again become
locked.
Referring now to Figures 13, 13a, 13b, 13c and Figure 18, there is
illustrated a track portion 18 and 19 which is to be installed within, as
shown in
Figure 18, the sill and header 220 of a frame assembly also including upwardly
extending jamb portions 220a. The track portions 18 and 19 therefore are
installed within the profiles as seen in Figures 2b and 18 by the provision of
a
locking block assembly 200 which includes an adjuster nut 210 which engages
the
rack portion 18x of the rack 18a of the track profile 18 as best seen in
Figure 13a.
The profile therefore includes the rack 18a, a riding portion for the rollers
18e
which will be explained hereinafter, and a recess 18d wherein a carrier as
best
CA 02218640 2002-06-03
-39-
seen in relation to Figure 14 rides with the exception of the rollers. The
track 18
therefore must be locked in position in the sash 220, and this is affected by
the
locking block 200 and the moveable nut 210. As best seen in Figure 13c, the
track
is inserted into the sill profile as shown so that the carrier may ride on the
track.
The assembly of Figure 17 for the sash is therefore engaged with the carrier.
The
block 200 therefore is screwed down through the profile 15 into the wooden
frame member not shown via opening 15c in the profile and 204 in the block
200.
Two fasteners 205 therefore are provided, and as shown in Figure 13, they are
inclined at an angle to the vertical in order to allow for the provision of an
adjuster 206 which is accessible through the opening 207 in the block 200
wherein
a cap screw having a head 206a having an alien key type access slot is
provided.
The threading 207b extends down to the end 207a proximate the nut 210.
As best seen in Figure 13, the lock block 200 and the locking nut 210
have a profile substantially as shown with a triangular shaped cut out
provided
adjacent the top thereof and wherein abutting portions 201 and 203 are
provided
to engage with the flanges 15b and 15a of the profile 15 of the sill portion
220.
The triangular cut-out portion includes an upwardly vertical face 202a, and
bottom 202. Similarly the nut has a shoulder 211 provided and a substantially
triangular shaped cut out 212 and an upwardly extending face 212a for engaging
with the sill profile 15 similar to that which is illustrated and described in
relation
to Figure 13. The rotation therefore of the cap screw 206 results in the
movement
of the nut 210 in relation to the block 200 which is fastened in position. The
adjustment therefore of the screw allows for the thread to engage a threaded
opening not shown in the nut 210 so that the rack portions 213a provide
engagement with the rack 18a of the track portion 18 and will allow for fine
adjustment in the positioning of the track 18 and the locking in position of
the
track. It has been found sufficient that by providing the block and the
adjustment
of the nut, it will sufficiently position and lock the track in position and
allow for
the adjustment of the track which will then further allow for the adjustment
of
CA 02218640 2002-06-03
-40-
the pivots as best seen in Figures 1, 1a, 1b, 1c, Figure 2, Figure 3 and
Figure 17 so
that the parallelism is not lost, and if fine adjustments once installed are
required
to the window sash to maintain the parallelism of the system, this is very
easy to
do. Should the system go out of parallel and require fine adjustment to
restore
the parallelism, a mere rotation of the head 207 is required for both the sill
and
headers 220 so that the system is squared.
The notch portion defined by the faces 202a and 202 have a unique
purpose in that the latch portion 251 as well as 250, as best seen in figure
17, will
engage with the face 202a and provide a lock detent for the lock 251. This
adds
reinforcement to the lock provided in that should the triangular shaped detent
of
the block not be provided, then the lock 251 would engage flange 15a and in
time
would wear out that flange in that particular locking position. The nut 210
has a
similar function so that either the nut or the block can function as the
detent for
the latch. Specifically in Figure 18, the screw 206 is shown being engageable
from
the nut toward the block, and in fact it is accessible in either direction as
shown in
Figure 13 and Figure 18 without changing the advantages of the system. For
access purposes, depending on the installation and the type of window, it may
be
easier to adjust as shown in Figure 18 as opposed to Figure 13. Preferably the
block is made from fiber-filled nylon. Alternatively, the block may be made
from
aluminum. The nut may be made from fiber-filled nylon as well.
Referring to Figures 14, 14a and 18, there is illustrated a carrier 39x
which includes a pivot portion 35 for engaging with the shaft portion 32 and
34c
of the pivot assembly and for carrying that shaft assembly and the pivoting
end
of the sash in the track 18 and 19 respectively of Figure 18. The carrier
includes a
portion 39y provided therewith to carry the rollers 39b therein. This is very
similar to the carrier illustrated and described in the previous descriptions
and
more specifically in relation to Figure 1a and 1b, with the exception that the
details of the carrier were not shown at that time in relation to the thrust
wheel
35c provided on the bottom.
CA 02218640 2002-06-03
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The carrier, as best seen in Figure 1a therefore rides on the rollers
on the track profile seen in Figure 13A on the surfaces 18e for the roller
wheels
39b and in the notch or cut-out recess 18d for the side portions adjacent the
roller
39b at 39z. The pinion portion 35 therefore has an opening 35b for receiving
the
shaft 32 which extends toward the bottom of the opening 35d and which opening
35b as best seen in Figure 14 is compatible with the shape of the shaft 32.
The
outer surface 35a of the opening 35b is compatibly shaped with the opening in
the carrier so that the opening 35b may be accessible to the shaft 32. At the
bottom of the pinion portion 35 is a thrust wheel carrying portion 35e which
carries the thrust wheel 35c. The thrust wheel 35c therefore rides in between
the
shoulders 18c and 18b on the surface 18d of the track profile 18. The thrust
wheel
is provided to accommodate any wind load which may be placed on the system
when the window is opened. Further, in the normal meshing of gears with a
rack, there is a thrusting force created as the pinion 35 moves on the rack
18x.
Therefore, the thrusting wheel will engage from time to time the shoulders or
the
surfaces defined by the shoulders 18c and 18b so as to maintain the
parallelism
and the accuracy of the installation of the window system. A pinion gear 35a
is
therefore provided between the thrust wheel 35c and the pivot receiving
opening
35b which operates substantially as described in relation to Figure 1A and
Figure
1 in that as the window rotates the pivot rotates causing the gear 35a to
rotate
and move on the track. This is particularly advantageous when the pivot
assembly is provided on a casement window as best seen in relation to Figure
1A
in that it is desirable to have the window move away from a pocket provided in
the window jamb as best seen in relation to Figure 1D so that the sash profile
will
not engage the jamb profile but will readily clear the jamb profile as the
window
is opened. For example, as best seen in Figure 1D, proximate the top thereof,
it
may be readily seen that a pocket is provided in the jamb profile so that the
pivot
assembly 30 is accommodated at that end of the window. However, a flange
portion unlabelled engages the sash cover portion so that within the jamb J1
there
CA 02218640 2002-06-03
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is a pocket J2 provided which improves the seal of the window in that the
cover
portion SC extends into the pocket J2 when the sash is closed. However, when
the sash is pivoted as in the case with the casement window of Figure 1C, the
pinion gear when pivoted will move the sash and the sash cover SC out of the
pocket J2 away from the jamb J1 and provide suitable clearance so that the
sash
cover SC will not engage with the jamb portion J3 which is a flange and
therefore
will clear easily the pocket and all its enabling portions. When the casement
window is closed, the opposite happens and the sash cover SC will engage the
pocket J2 and be moved in position with the pivoting of the window to the
closed
position.
The rollers 39b therefore provide a smooth motion of the closure
system in relation to the track which would not be present if the rollers were
not
provided since the track is made from aluminum. The rollers are not absolutely
essential in every embodiment, however, it is preferred.
Referring now to Figure 15, there is illustrated two sashes side by
side shown in end view. The sashes are made substantially as constructed in
relation to Figure 17 wherein the sash 220 is defined by a central I-shaped
portion
227 having an opening therein and two side abutting portions 225 and 226. A
pocket therefore for receiving the glass G is defined at 222. Fin seal
portions 221
are therefore provided for abutting the glass G which contains the normal
known
seal portion SX. The window sash profiles also include flange portions 224
proximate the opening opposite the glass G. Within that opening there is
provided in use a closed cell caulking foam which is compressible at portion
240.
This portion extends totally along the sash profile within the opening as
shown
with the exception of the portion adjacent the pivoting assembly. A cover
portion therefore is provided at 230 which engages the tab portions 224
proximate each side of the sash profile. This cover portion when inserted is
flexed downwardly as the closed cell foam 240 is compressed as best seen in
Figure 15a so that the flange portions of the cover at 230a engage with the
flange
CA 02218640 2002-06-03
-43-
portion of the sash at 224 to provide a compressed seal for the track cover
230.
The track cover is defined as a track cover although it does occupy the sash
as a
component thereof in that as the sash is closed over the opening defined
between
the flange portion 16a and 16b as best seen in Figure 15a, the snap cover
portion
will extend down into and engage with the flanges 16a and 16b, thus covering
the track and snapping into position each time the sash is opened and closed.
The typical seals BX and BY are provided as is known in the art.
Alternatively, as best seen in Figure 1D, the sash covers may
include alternative embodiments shown proximate the jamb portions 16a and 17a
of the window assembly. Alternatively, a cover portion may be provided over
the track portion 15 of sill portion 220 and header portion 220 of Figure 18
that
engages with the sash profile in a similar way to that of the track cover of
Figure
15a with the exception that the track cover only extends over the second half
of
the track, that is to say the second half not carrying the window . For
example as
shown in Figure 2, the wheel portion 39a may be eliminated and the track cover
may extend along the track portion opposite the pivot assembly so that the
sash
may slide on the track cover and be assisted to be supported by that track
cover
only in the second half of the track profile thereby eliminating the second
carrier
of Figure 2. The track cover therefore in Figure 2 as an example would extend
from the carrier 39a toward the left side of the page to allow the pivot
assembly
35 to move to approximately the position of the present carrier 39a wherein it
would engage the track cover. In the movement of the carrier 35 to that
position,
the other end of the window would already be supported by the track cover.
This installation therefore would eliminate the carrier 39a.
Referring now to Figure 16B, there is provided locking detents 250
and 251 which engage with the locking detent portions 202 and 212 of the lock
and nut portions 200 and 210. These locking portions 250 therefore and 251 are
operated by a handle 260 as best seen in Figure 16A which is rotatable to
cause
the motion of the rack portion 265 and the detent 250 into and out of the
locking
CA 02218640 2002-06-03
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abutment provided with the lock block and the lock nut 200 and 210
respectively.
In Figures 16, 16A and 16B, the installation is provided for a casement window
assembly. In the United States Patent Application described in the Summary of
the Invention which was incorporated by reference, there is no provision of a
casement-style window lock. Nor was there the provision of a lock block or nut
detents 210 and 200 respectively. The handle therefore 260 is rotated by the
user
which causes the movement of the corresponding pinion gear 261, the rotation
of
the pinion gear 261 affects the movement of the rack 265, and the latch
engaging
portion 250a and 251a carried within the housings 255 and 254 respectively as
best seen in relation to Figure 17. The rotation of the pinion will therefore
also
cause the motion of the rack portion 266 sufficiently as provided by the
opening
266a of said rack portion to allow for engagement of said rack portion with
said
rack portion 265 with the bottom portion affecting the latching and unlatching
of
detent 251. Intermediate the two latching portions for the casement window is
provided a second pinion 267 which is rotated effectively by the movement of
the
rack portion 266. Rotation of the pinion 267 causes rotation of the pinion
sector
268 which is engaged with the locking detent 269 for the latch plate 270 and
the
detent 271 thereof. This latch plate is typical for casement windows as is the
movement of the lock 269, i.e. the rotation thereof. However, with the central
locking system provided with this invention, it is the one handle operation of
both the detents 250 and 251 and the casement window lock 269 which is in
combination the essence of the central locking system. Alternatively, the
casement window portion may be left out and the essence of the locking system
therefore includes the locking block in the track which provides a detent for
the
locks 250 and 251 respectively.
As best seen in relation to Figure 17, there is provided a cover C(x)
which hooks into the sash profile similarly to the cover 230 previously
described
in relation to Figures 15 and 15A through which the handle portion 260
extends.
Therefore, the latch assembly is contained within the sash profile, and the
only
CA 02218640 2002-06-03
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portion extending outside of the sash profile is the handle portion. This
handle
portion is considerably smaller than the normal handle portion provided with a
casement window which is typically rotary, and there is a tremendous
elimination of components for a casement-type window. In fact, this will be
described hereinafter.
Referring to Figure 17, there is shown an exploded perspective
view of the window assembly which will fit into the track profile similar to
Figure 18, but more specifically which may be designed for a casement window.
The sashes 220 are provided with an opening 227 wherein a corner connector 280
is provided which extends into the opening 227 proximate all four corners and
eliminates the necessity for welding. Clip portions 281 bite into the vinyl
and are
tapered in a direction so as to prevent the removal of the corner connectors
once
inserted within opening 227. This snap lock feature therefore provides for the
installation of the corner connectors and the quick fastening of the sash
profile
I S around the glass G. The track covers 230 are therefore provided and
snapped
into position once the closed cell foam, best seen in Figure 15a at 240, is
inserted
within the opening of the sash profile. The hardware including the carriers,
best
seen in Figure 18, which are then assembled within the opening opposite the
glass of the sash proximate each jamb portion in use. The hardware therefore
including the top and bottom track engaging portion 39x and 37x, the shaft 32,
the connector 3lbx, the other shaft 31, and the small shaft 34c are provided
proximate the pivoting end of the window assembly within the sash profile
enclosed by a cover similar to that of cover CX. The central lock as described
in
relation to Figures 16, 16A and 16B is therefore inserted within the other
opening
of the sash profile and assembled and covered by the cover CX. The window
sash is now available for installation within the frame assembly of Figure 18
once
the carrier portions 39x are engaged with the respective shafts 32 and 34c.
The
block portions 200 are therefore locked in position once the track is
installed in
the frame, and the nut portions are adjusted to allow for the parallelism of
the
CA 02218640 2002-06-03
-46-
carriers 39x within the tracks to ensure the parallelism of the sash so that
it rides
well within the track portions. The window is therefore assembled.
For a casement window, all of the prior art levers and latch
mechanisms are substantially eliminated. This means a great deal to window
manufacture in that there are a considerable number of screws and fasteners to
hold down the prior art lever linkages of the prior art systems. In the
present
invention, only the latch block fasteners are provided. The rest of the window
assembly merely snaps together with a friction fit of the sash profiles, the
sash
profile covers and the frames. A minimum of assembly labour is therefore
required with the installation of this window assembly. In one particular
situation where an old style double-hung window is installed within an
opening,
it may be conveniently removed by an installer and the present invention may
be
installed in any of its embodiments including a casement window.
This is heretofore unknown in that a casement window occupies a
certain standard space in the industry, and because of the linkage systems and
the known systems, it is not possible to provide a larger window. With the
present invention, a larger casement window may be provided which is easily
installed with the minimum amount of labour and assembly time required.
Should the window now be mis-alligned for any reason, it may be easily
adjusted
by the rotation of the screw 206 provided. A sophisticated user therefore
could
easily adjust this once instructed over the phone by an installer, or
alternatively
the installer may return for a quick adjustment at any time. Also, the window
assembly is less likely to go out of adjustment because of the great care
taken in
the development of the precision of the assembly.
A method therefore of assembling the window may be considered
as described in the above-mentioned description wherein, firstly the sash
components are assembled by the quick fastening feature of the corner locking
portions which are inserted within the opening of the sash profiles provided
and
provide one-way friction fit. The closed cell caulking is therefore inserted
within
CA 02218640 2002-06-03
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the top and bottom of the sash assembled and these portions are covered by the
track covers by the compression of the closed cell foam and the engagement of
the tabs of the track cover with the tabs of the sash profile. The hardware is
then
installed along the vertical portions of the sash within the openings thereof
opposite the glass which is then covered by a sash cover portion provided. The
hardware located proximate the pivoting end is therefore installed on the
carrier
portions and inserted within the track portion within the sill and header, for
example of a window assembly. The window is therefore closed in position with
the sash covers or track covers located proximate the sill and header snapping
into the frame and closing any path for air to enter the window and pass the
primary seals provided as best seen in relation to the Figure 15A. The track
covers also provide blockage of light, air and the friction fit of the sash
into the
track portions. By providing a track cover along the track remote the pivoting
end of the window, this track cover may be used as support as well for the
window assembly.
In another embodiment not shown, a double casement window is
provided which is provided in a straight-line window, that is to say a frame
is
provided wherein a central mullion is disposed. A central mullion separates
two
casement windows, one opening as a mirror image of the other and containing
all
of the elements described above in relation to the pivot assembly and the
central
locking system and track system.
As many changes can be made to the preferred embodiments of the
invention without departing from the scope or intent thereof; it is intended
that
all matter contained herein be considered as illustrative of the invention and
not
in a limiting sense.
