Note: Descriptions are shown in the official language in which they were submitted.
The present invention relates to a building kit for
the subsequent installation of an insulation glazing on exist-
in single or multiple glazed windows, doors, or the like,
said kit having single glass panes and hollow spacer strips
disposed all around their edges and undetachable connected there-
to with interposed sealing material, said spacer strips con-
twining a molecular sieve material. Said spacer strips also
are undetachable mounted on existing glazing with interposed
sealing material and have a concealing frame for final cover-
in.
Insulation glazings consisting of two glass panes
spaced apart and rigidly connected to each other by spacer
strips so as to be impervious to air and water vapor are
known. For replacing existing single glazings in doors or
windows by this type of insulation glazing substantial expend
dotter of energy is required. The existing putty joints must
be enlarged after removing the existing glazing. The insular
lion glazings must then be newly inserted in the enlarged putty
joints according to special specifications.
In order to save the expenditure of energy and the
costs associated therewith or to reduce them substantially,
double glazings in which a swing-out glazing is installed on
the door or window frames in addition to -the existing glazing
are known. This is done in order to be able to remove from the
space between the two glass panes dirt and moisture accumulated
due to permeability. In fact, the existing glazing can be kept
in place but the additional glass pane and the finished double
glazing must be installed professionally. If laymen try to
install this double glazing by do-it-yourself methods, malfunc-
-lion of the double glazing would be unavoidable.
In order to provide the possibility of attaching a
pane in front of already installed single-pane glazings, for
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example, by the do-it-yourself method, it is known that this
front pane forms a unit with a range spacer, to which it is
rigidly connected by an adhesive material, the surface of the
range spacer facing the single plane glazing being provided
with an adhesive material, which, upon being attacked to the
pane of the single pane glazing, forms a gas-tight connection
between itself and the front pane (German Gebrauchsmuster No.
7,719,752 issued 23rd February 1978 to Kurt Xochlin. Hugger-
scopic material is disposed in the hollow range spacers as a
so-called molecular sieve.
It has been found that wherewith alone in the do-it-
yourself method a double glazing can be installed only by
experts and interruptions, for example, on applying the ache-
size material when inserting sealing material or when
installing the molecular sieve or when joining the corners of
the range spacers are unavoidable.
A multi-pane glazing of originally single glazed
windows to insulation glass windows which is characterized by
an edge composite construction comprising range spacer frames,
sealing material and an adhesive on a single glass pane,
which, upon joining with an already glazed single pane, forms
a multi-pane insulation glazing, is known (German Gebrauchs-
muster No. 7,707,013 issued September 1, 1977 to Jan Markup).
This does not really enable a layman either to
install a double glazing with a do-it-yourself method. Cons-
quaintly there will result leaks and the double glazing will
eventually have to be removed again.
Finally a building kit for an insulation glazing of
windows, doors, or the like, which already have a single glaze
in is known. This building kit comprises a single glass pane
having spacer strips extending all around its edges and being
detachably connected thereto, said single glass pane being
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intended or mounting on the already existing single glazing
of
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it
the window, door or the like, or a single glass pane, -the
spacer strips extending all around the edges thereof, for bond
in Jo the existing single glazing of the window, door or the
like, covering there against, being fastened along the edges
thereof and sealing off the single glass pane, and cover strips
attachable to the frame of window, door or the like. In the
mounted state said cover strips form a frame all around and
press against the single glass pane (German Gebrauchsmuster
No 7,823,498 issued January 4, 1979 to Klaus Zero).
Although the layman thus is provided with a building
kit for insulation glazing, it has been found -that it is desire
able to improve this building kit substantially, primarily in
order to provide greater safety and practicability when attach-
in and joining the individual parts.
Therefore the present invention provides a building
kit for the subsequent installation of an insulation glazing of
the aforesaid type, i.e., a building kit which will enable a
layman to safely install a double glazing on existing single
and double glazed windows and doors.
It has been found that this is achieved in a simple
manner by connecting the hollow spacer strips to each other by
intermediate pieces insertable into their end openings and
providing them with ducts for receiving sealing material in
their surfaces facing the glass panes.
It is thus possible to delimit their ends by straight
sections extending at right angles to the edge regions. Mites
at the end of the spacer strips are completely avoided. The
spacer strips may be obtained in various lengths and can be
reduced to the length required in each particular case. The
intermediate pieces may be adapted to the size of the spacer
s-trips. They also completely fill the space between the spacer
strips. Since ducts for receiving the sealing material are
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provided on the surfaces of the spacer strips and intermediate
pieces which face the glass panes, this sealing material can
be inserted easily without smudging which could not be avoided
heretofore and will be visible through the glass panes.
In detail, the intermediate pieces have between their
insertion ends a center piece, which on the side relative to
them it reinforced to the size of the distance pieces. The
end forces of the walls of the hollow spacer strips abut against
said center piece. Therefore, when intermediate pieces and
spacer strips are put together a so-called spacing frame having
end faces or boundary surfaces lying in a plane opposite the
glass panes is obtained. Prior to putting the spacer strips
and intermediate pieces together the spacer strips may be fill-
Ed with a molecular sieve material. This molecular sieve or
the moisture-adsorbing material is included in the building
kit in the form of hermetically sealed tubes. The tubes can be
provided with cartridges through which the molecular sieve
material can be put into the hollow spacer strips while avoiding
the absorption of moisture. The intermediate pieces may have
various shapes. In a first example the intermediate pieces
have insertion ends extending at right angles to each other.
These intermediate pieces are usually used for joining the
spacer strips together at the corners.
In a second example the intermediate pieces have in-
section ends which extend in a straight line relative to each
other. These intermediate pieces are used, for example, for
large windows and doors when joining together spacer strips
whose length is less than that of the door or window glazing.
In a further example the intermediate pieces have in-
section ends extending at any angle between 90 and thus intermediate pieces are usually used for joining together
spacer strips which are usually shorter than the spacer strips
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mentioned above. These intermediate pieces can be used for
adapting the double glazing to curved regions of doors and
window frames. In this easer too, the spacer pieces are filled
with molecular sieve material prior to being joined to the
intermediate pieces.
It is particularly favorable that the faces of the
center pieces of the intermediate pieces which face the glass
panes have ducts for receiving the sealing material in proper-
lion to the spacer strips.
In this manner it is possible to provide the spacer
frame joined together by spacer strips and intermediate pieces
with sealing material all around without the risk of smudging.
Furthermore it is particularly advantageous that the
sealing material in the initial state as a strand or string
has a cross section which corresponds to -that of the duct or
ducts in the spacer strips and in the intermediate pieces. In
this form the strand-or string- shaped sealing material can
easily be included in the building kit. As a protection it
can be provided with oiled paper to prevent it from sticking
to the hands or soiling them.
In a particular embodiment of the present invention
in each face of the spacer strips and of the intermediate pieces
which faces a glass pane there is provided a duct having a
semicircular cross section and the sealing material as a seal-
in string has a cross section which is circular in the initial
state, the circular cross section corresponding to the shape
of the ducts. Since the sealing material is soft, any layman
can simply put the circular string into the corresponding ducts
and then cut it to the required length. When joining it to the
corresponding glass pane the sealing material can then spread
over the entire width of the spacer strip and of the interim-
dilate piece.
I
In all the embodiments of the present invention there
are provided sealing pieces which cover the outer surface of
the intermediate pieces and -the adjacent edge regions of the
adjoining spacer strips. In this manner reliable sealing of
the critical regions between two adjoining spacer strips can be
attained even by laymen.
The sealing pieces and the sealing material, primary-
lye the sealing strands or strings are designed as a water vapor
barrier. It is advantageous to use as the water vapor barrier
bottle which is known per so.
As a further protection against penetration of moist
lure the regions between the window or door frames and the
spacer strips as well as the two glass panes are filled with
sealing strands. They can be rolled up and added to the build-
in kit in the required amount. By pulling more or less in-
tensely when putting the sealing strands into the provided
spaces the amount of material can be adapted to the spaces to
be sealed.
The sealing pieces on the outer surfaces of the in-
termediate pieces and on the edge regions of the spacer strips may extend up to the window or door frames. However, addition-
at sealing material can also be provided between the sealing
pieces and the window or door frames.
In order to assure easy and safe attachment of the
additional glass pane to the existing glazing, spacer blocks
are provided between the spacer strips and the opposed regions
; of the window or door frames. The spacer strips are mounted on
the window frames prior to inserting the sealing strands,
whereupon the additional glass pane with the spacer strips is
mounted on the spacer blocks and folded. It is thus possible
that the additional glass pane can be put on the existing glass
pane without having to remove the windows or doors.
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In order to assure a clean appearance, the edge region
of the single glass pane, the sealing strand and, when required,
the inner region of the window or door frame are covered with
a concealing frame.
The present invention will be further illustrated by
way of the accompanying drawings, in which:-
Figure 1 is a simplified perspective view with arrows of the individual parts of the building kit according to one
embodiment of the present invention;
Figure 2 is a perspective view of a space strip;
Figure 3 is a side view of an intermediate piece;
Figure 4 is a side view of another intermediate piece;
Figure 5 is a side view of still another intermediate
piece;
Figure 6 is a side view detail of the construction
of a corner;
Figure 7 is a cross section through a particularly
preferred embodiment of a spacer strip;
Figure 8 is a detail in perspective of the insulation
glazing in the assembled state; and
Figure 9 is a side view of a special design according
to the present invention.
Referring to Figure 1 a window or door frame 2 has
an existing pane 1. A single pane 4 is provided with a hollow
spacer strip 5 shown in detail in Figure 2 extending all around
its edges. The pane 4 with the spacer strips is dimensioned to
fit on the existing pane 1, a sufficiently large space remain-
in between thinner edges of the window or door frame 2 and
the outer surfaces of the spacer strip 5. This space may be
filled with sealing material 22 or spacer blocks 23 as shown in
Figure 8.
I
Upon inserting or attaching the single glass pane 4
to the existing pane 1 the edge regions are covered with a
concealing frame 15.
Referring to Figure 2 the hollow spacer strip 5 which
is conventional has a rectangular cross section as well as end
openings 6 and end faces 7 of the spacer strip walls 8.
A so-called molecular sieve material 13 of water-
vapour-adsorbing material is indicated diagrammatically within
the spacer strip 5 so that air between the two panes 1 and 4
has access to the molecular sieve material 13, corresponding
openings 14 are provided on the inner surface of the spacer
strip 5.
Referring to Figure 3 the intermediate piece 16 has
a center piece 18 and insertion ends 17 extending at right
angles to each other. The center piece 18 is so reinforced no-
native to the insertion pieces 17 that on being joined with
the spacer strips 5 it has boundary surfaces lying in a plane
and facing the glass panes.
Referring to Figure 4 the intermediate piece aye has
a center piece 18 and insertion ends at an angle of 180 with
one another. Two spacer strips 5 are shown dotted in Figure 4.
They indicate that they abut against the edges of the center
piece lg.
Referring to Figure 5 the intermediate piece 16b in
which the insertion ends make an arbitrary angle between 90
and 180.
Referring to Figure 6 in the corner the spacer strips
5 which are provided with straight end faces are mounted on
the insertion ends 17 of an intermediate piece 16 of the type
illustrated in Figure 3. sealing corner piece 21 which also
covers the edge regions 11 of the spacer strips 5 is provided
between the center piece 18 and the door or window frame 2.
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The end faces 7 of the spacer strips S abut tightly against
the corresponding faces of the center piece 18 of the interim-
dilate piece 16.
The region between the spacer strips 5 and the door
frame 2 is filled with sealing strands 22.
Referring to Figure 4 the sealing piece aye can be
used in connection with intermediate pieces aye or in a mod-
fled form with intermediate pieces 16b.
The spacer strip 5 according to Figure 2 and the
spacer strips 5 according to Figure 6 have ducts 10 which are
shown in detail in Figure 7 and 8. Strand-shaped sealing
material 20 or string-shaped sealing material
aye having a circular cross section or a
cross section corresponding to the ducts 10 are inserted into
said ducts 10. In conjunction with the correspondingly shaped
strands or strings of sealing material these ducts substantial-
lye facilitate the fastening of sealing material to the spacer
strips. The ducts 10 in the faces 9 of the spacer strips 5
which are facing the glass panes l and 4 extend into the center
pieces 18 as ducts 19, lea and lob.
Referring to Figure 8 spacer blocks 23 are placed on
the corresponding regions of the window or door frame 2 prior
to installing the single glass pane 4. They serve as supports,
particularly when installing large single glass panes 4 and
permit mounting in the non-removed state of the windows or
doors. It is evident from Figure 8 that the installed pane 1
is secured in the frame 2 with putty 3.
It is evident from Figure 9 that even shorter spacer-
strips 5 can be joined by means of the intermediate pieces 16b.
This embodiment can be used with advantage where the windows or
doors have semicircular arches. Vertically extending longer
spacer strips can then be attached to the free ends of the
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spacer strips 5 in Figure 9 by means of corresponding interim- -
dilate pieces.
In a preferred embodiment the intermediate piece 16,
aye, 16b consists of moldable material so that it can be read-
lye adapted to the desired angles between the center piece 18
and the insertion ends 17.
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