U.S. patent number 3,594,969 [Application Number 04/759,954] was granted by the patent office on 1971-07-27 for mounting frame.
Invention is credited to Josef Lejzor Kantorowicz.
United States Patent |
3,594,969 |
Kantorowicz |
July 27, 1971 |
MOUNTING FRAME
Abstract
The invention relates to mounting frames for receiving coverings
for surfaces such as walls, floors or ceilings of rooms which are
detachably fastenable together by projection and recess
connections, bolted connections, or by separate connections. The
mounting frames are formed of a baseplate and sidewalls, the latter
of which have associated with them a device enabling the
connections between adjacent mounting frames to be made. Such
devices are generally in the form of one or more parts of the
connections.
Inventors: |
Kantorowicz; Josef Lejzor (5200
Windisch, CH) |
Family
ID: |
25706982 |
Appl.
No.: |
04/759,954 |
Filed: |
September 16, 1968 |
Foreign Application Priority Data
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Sep 28, 1967 [CH] |
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13536/67 |
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Current U.S.
Class: |
52/392;
52/471 |
Current CPC
Class: |
E04F
15/02 (20130101); A47G 27/0475 (20130101); E04F
13/0892 (20130101) |
Current International
Class: |
A47G
27/00 (20060101); A47G 27/04 (20060101); E04F
13/08 (20060101); E04F 15/02 (20060101); E04f
013/14 () |
Field of
Search: |
;52/602,472,471,469,465,464,392,390,385,386,387 ;40/10,16 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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357,517 |
|
Dec 1905 |
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FR |
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924,893 |
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Aug 1947 |
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FR |
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1,227,812 |
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Aug 1960 |
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FR |
|
812,671 |
|
Apr 1959 |
|
GB |
|
839,477 |
|
Jun 1960 |
|
GB |
|
702,743 |
|
Jun 1954 |
|
GB |
|
Primary Examiner: Sutherland; Henry C.
Claims
I claim:
1. A mounting frame system for a surface covering comprising at
least two mounting frames and a connecting element, each of said
mounting frames comprising a baseplate adapted for fixation to a
supporting surface and rectilinear sidewalls extending about the
periphery of said baseplate on one side thereof and adapted to
project away from said supporting surface, said sidewalls defining
with the baseplates recesses for surfacing inserts, said sidewalls
having a depth greater than the thickness of the baseplate, said
mounting frames being arranged with their baseplates in a common
plane with a sidewall of one of the frames adjacent a sidewall of
another of the frames, each of said adjacent sidewalls having an
undercut recess on the inner sides thereof adjacent the line of
junction between the baseplate and the respective adjacent
sidewall, said connecting element having a pair of limbs, the
extremity of each of said limbs being directed inwardly of and
extending into one of said recesses.
2. A mounting frame as defined in claim 1, comprising a one-piece
unit formed by said baseplate and said sidewalls.
3. A mounting frame as defined in claim 2, wherein said one-piece
unit is made of plastics material.
4. A mounting frame as defined in claim 1, wherein means is
provided on the underside of said baseplate for protection against
slipping.
5. A mounting frame as defined in claim 4, wherein the means for
protection against slipping comprises a nonslip coating adhering to
said underside of said baseplate.
6. A mounting frame as defined in claim 4, wherein said underside
of said baseplate is roughened for protection against slipping.
7. A mounting frame as defined in claim 1, wherein the inner sides
of said sidewalls are inclined inwardly from said baseplate so as
to enclose at said baseplate a larger area at their outer edges and
wherein said limbs of said connecting element are contoured to abut
said inclined sides.
8. A mounting frame as defined in claim 1, wherein said recess is
in the form of a notch extending parallel to the joint between said
baseplate and the inner side of said sidewall.
Description
BACKGROUND OF THE INVENTION
This invention relates to mounting frames for parts of a surface
covering.
It is known to provide floors, walls and also the ceilings of rooms
with coverings for which purpose various materials of various
qualities, colors, shapes, and so on are used. Particularly because
of their ease of handling and the large choice of colors,
qualities, and patterns and because of their sound absorbing
properties, preferred materials are pieces of carpeting, textiles,
felt, and soft plastics.
SUMMARY OF THE INVENTION
According to the invention there is provided a mounting frame for
parts of a surface covering, comprising a baseplate rectilinear
sidewalls framing said baseplate to define therewith an insertion
space and having a depth greater than the thickness of the
baseplate, and at least one device associated with each said
sidewall for the detachable fastening of adjoining sidewalls of
juxtaposed mounting frames.
BRIEF DESCRIPTION OF THE DRAWINGS
Several embodiments of the invention will now be described by way
of example with reference to the accompanying drawings in
which:
FIG. 1 is a plan view of one form of construction of a mounting
frame according to the invention, in which the sidewalls and
fastening elements are shown on a larger scale in relation to the
overall dimensions, for the sake of greater clarity;
FIG. 2 is a section through the mounting frame illustrated in FIG.
1, taken along the line II-II;
FIG. 3 shows, on a much larger scale, a section of the adjoining
side surfaces of two juxtaposed mounting frames of the type
illustrated in FIGS. 1 and 2, and illustrates the cooperation of
the connecting elements;
FIG. 4 is a plan view of a number of juxtaposed mounting
frames;
FIG. 5 shows, in perspective, part of a surface covering assembled
from mounting frames according to another embodiment of the
invention;
FIG. 6 is a sectional view taken on the line A-A of FIG. 5 showing
two juxtaposed mounting frames fastened together by a connecting
element;
FIG. 7 is a perspective view of part of a mounting frame on the
sidewall of which there is disposed an edge member forming the
outer termination of the surface covering; and
FIGS. 8 to 12 show sections through still further forms of
construction of two juxtaposed mounting frames fastened to one
another by a connecting element.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The mounting frame illustrated in FIGS. 1 and 2 has a square
baseplate 10 and four sidewalls 11, 12, 13, and 14. The outer side
of each of the sidewalls extends upwards at right angles from the
baseplate, while its inner wall is inclined in such a manner that
the area of the mounting frame enclosed on the upper side of the
baseplate is larger than the area enclosed by the top inner edges
of the sidewalls (FIG. 2). Each of the sidewalls has two fastening
elements 15, 16 or 17, 18 or 19, 20 or 21, 22, which subdivide the
side surface into three portions of equal length in its
longitudinal direction and which are disposed halfway up the height
of the sidewalls. The fastening elements consist of holes 16, 18,
20, and 22 and of pins 15, 17, 19, and 21 projecting at right
angles from the sidewall and provided at their front end with a
spherical thickened portion. A the height of the upper side of the
baseplate, a slot 23 is also provided in the sidewall 13. The four
outer edges are provided with notches 25, 26, 27, and 28 which
extend parallel to the baseplate and which are disposed halfway up
the height of the sidewall, their width corresponding to the
diameter of the holes. The underside 29 of the baseplate is
roughened by a pattern of intercrossing notches similar to a
file.
The outer side length of the mounting frame illustrated is 30.4 cm.
and the width of the sidewalls and their top end is 0.2 cm., so
that the free area enclosed by the sidewalls is suitable for the
insertion of square pieces having a side length of 30 cm. The
inclination of the inner sides of the sidewalls is so selected that
at their bottom end they have a minimum width of 0.17 cm. The
thickness of the baseplate amounts to 0.1 cm. and the total height
of the sidewalls from the bottom to the top edge amounts to 0.9 cm.
The diameter of the hole provided as fastening element and the
width of the notches provided at the edges amounts to 0.25 cm.,
while the diameter of the cylindrical portion of the projecting pin
amounts to 0.28 cm. and the diameter of the spherical thickening
provided at the end of the pin is 0.33 cm. The overall length of
the pin amounts to 0.3 cm. The slot at the bottom end of one
sidewall has a width of 0.15 cm. The mounting frame described is
made of plastics material and produced in one piece by the
injection-moulding method.
The notches 25, 26, 27, 28 at the four corners of the mounting
frame are provided for the insertion of projecting bolts, when the
above described square mounting frame is for example to be joined
to a rectangular mounting frame having a longer side length.
In FIG. 3, adjoining sidewalls 11' and 13 of two juxtaposed
mounting frames are illustrated in section. The pin 15' which is
made of a plastics material which is deformable under pressure, is
pressed through the hole 20 and forms a durable but detachable
fastening between the sidewalls.
In FIG. 4, nine assembled mounting frames 30--38 are illustrated,
in which because of the above-described arrangement of the
fastening elements a pin always encounters a hole and can be
pressed into the latter independently of the selected mutual
position of the mounting frames, so that each mounting frame is
detachably connected on each side at two points to the adjoining
mounting frame.
If desired, the pins on the outer sides of the mounting frame can
be broken off, in order that projecting pins will get in the way
when it is desired to cover a large area.
If the pieces to be inserted into the mounting frames are easily
deformable or elastic and have approximately the same thickness,
they can be inserted into the individual mounting frames after the
latter have been assembled. If the pieces to be inserted are not
flexible or are very thin and if they are intended for mounting
frames which are to be fastened on a wall or ceiling, these parts
are advantageously cut to a size which is slightly larger than the
free area enclosed by the mounting frame and then inserted from the
side through the slot 23 into the mounting frame. It is then also
possible for additional underlays to be pushed through this slot
into the space between the inserted covering piece and the
baseplate, in order to raise the inserted piece in the mounting
frame and to fill the entire depth of the latter.
FIG. 5 illustrates four mounting frames 50, 51, 52 and 53 of a
surface covering. The mounting frame 50 (and every other mounting
frame) contains a baseplate 54 and four sidewalls, of which only
the sidewalls 55, 56, and 57 can be seen in the Figure. In contrast
to the form of construction illustrated in FIGS. 1, 2 and 3, in the
case of these mounting frames the device for detachable fastening
them together is in the form of a recess 58 disposed in the middle
of each sidewall. Each of the recesses extends over the surface and
the inner side of the sidewall and into the adjoining portion of
the baseplate. In addition, a projecting pin 59 is provided in the
portion of the recess situated in the baseplate. The two juxtaposed
mounting frames 50 and 51 are joined with the aid of a connecting
element 60. The connecting element 60 corresponds in shape to the
recesses in the two juxtaposed mounting frames and is inserted into
said recesses. In each of its two projections 61 and 62, which are
intended for insertion into the portions of the recesses which are
situated in the baseplate, the connecting element has a bore into
which the pins 63 and 64 respectively are inserted in order to hold
the connecting element on each of the mounting frames.
The connection of two juxtaposed mounting frames with the aid of a
connecting element is illustrated in FIG. 6, which is a sectional
view taken along the line A-A in FIG. 5. The Figure shows the two
mounting frames 50' and 51' and the connecting element 60'. As can
be seen from the Figure, in the region of the recess, the inner
side of the sidewall (for example of the sidewall 56') extends
parallel to the outer side, whereby the fitting of the connecting
element over the juxtaposed sidewalls is facilitated. In addition,
the pins 63' and 64' projecting upwards out of the portions of the
recess which extend in the baseplates (for example the baseplate
54') can be seen, which are introduced into the bores in the
projections 61' and 62', in order to secure the connecting element
more satisfactorily.
The above-described connecting element enables any desired number
of mounting frames to be detachably secured together rapidly and
securely over any surface. Since the shape of the connecting
elements matches the recesses in the mounting frames, the insertion
space of each of the mounting frames is bounded by continuous
smooth interior walls, which is important for the insertion of
pieces simply cut to shape.
In order to ensure that the outer sidewalls of surface coverings
composed of a plurality of mounting frames will not have uncovered
recesses, these recesses can be covered by half a connecting
element, formed by dividing an element into two parts along the
broken line 65 shown in FIG. 6.
In FIG. 7 an edge piece 70 is shown, which is advantageously used
as a side termination of surface coverings, where a bevelled
transition is desired between the surface to be covered and the
surface covering, as is the case particularly with floor coverings.
The edge piece has a portion 71 which has a wedge-shaped section
and which is at least as long as a sidewall of a mounting frame.
The edge piece also has a fastening element 60" which is disposed
in the longitudinal center of the wedge-shaped portion, its shape
corresponding to a fastening element 60 symmetrically divided in
its transverse direction, i.e. longitudinally of the sidewall.
It is obvious that the above-described form of construction of the
mounting frame can also be modified so that more than one recess
for the insertion of connecting elements is provided along each
sidewall.
In the form of construction of a mounting frame which is
illustrated in FIG. 8, the recesses are in the form of notches 75,
76. These notches extend along the joint between the baseplate 77
or 78 and the inner surfaces of the sidewall 79 or 80 respectively.
A clip 81 which is made of elastic material and which embraces the
two sidewalls is used as connecting element.
In the embodiment illustrated in FIG. 9, the mounting frame has
recesses 83, 84, and 85 in the form of blind holes. These blind
holes are disposed at regular intervals along the edge between the
baseplate 86 and the inner surface of the sidewall 87. In this
embodiment juxtaposed mounting frames are held together with the
aid of springs 88, 89, and 90 engaging in the blind holes. It is
naturally also possible for the blind holes to be replaced by
continuous bores and for a spirally wound connecting element to be
used instead of the spring clips.
Another form of construction of mounting frames is illustrated in
FIG. 10, in which the recesses 91 and 92 practically correspond to
the recesses 75 and 76 shown in FIG. 8. In contrast to the
embodiment illustrated in FIG. 8, the mounting frames shown in FIG.
10 are connected together by a connecting element in the form of a
section bar 93. This section bar has a T-shaped cross section,
while the outer ends of the crossbeam have extensions 95 and 96
respectively which lead to the baseplate of the mounting frames and
which have at their bottom inner ends projecting flanges 97, 98
which engage in the recesses 91 and 92 respectively. The individual
mounting frames are separated from one another by the vertical
center web 99 of the T-shaped section bar, which is advantageous
for certain purposes, and the flat crossbeam 94 of the section bar
permits smooth termination of the sidewalls of the mounting frames
assembled together to form a surface covering, fitting the pieces
of material inserted in the mounting frames.
In the embodiment illustrated in FIG. 11, the recesses are in the
form of channels 100, 101 open on one side and extending on the
outside of the sidewalls of the mounting frames, approximately
halfway up their height and running in the longitudinal direction.
The connecting element 102 fitting said channels is T-shaped and on
its vertical central web is provided with two beads of
approximately circular cross section.
In the embodiment illustrated in FIG. 12, two identical mounting
frames 105 and 106, the shape of which corresponds to the mounting
frames as already described with reference to FIG. 10, are joined
by a fastening element 107 which itself is in the form of a
mounting frame. The fastening element contains a baseplate 108 and
sidewalls 109, 110, which are pushed over the corresponding
sidewalls 111 and 112 respectively of the two mounting frames 105
and 106 and fastened with the aid of the beads 113, 114 in
corresponding recesses 115 and 116 respectively. It is obvious that
the most important dimensions of this fastening element may be so
selected that the latter can be inserted instead of a mounting
frame between four mounting frames abutting by their outer
edges.
The mounting frames are preferably made of plastics material, such
as polystyrene, polypropylene, acryl, nylon, polyethylene, or of
plastics material reinforced with glass or other materials, or of
rubber, wood, metal or glass. They may be flexible, semistiff, or
nonelastic. Instead of the above described hole, the fastening
elements may comprise a threaded nut and the pin may be replaced by
an open-ended bore for a bolt, which is practical or even necessary
particularly when the mounting frame is made of a nonelastic
material, or when it is not possible to make the mounting frame and
the fastening elements in one piece. Finally, the baseplate may
also be provided with one or more holes if the mounting frames are
not laid horizontally but are to be fastened on a wall or ceiling
without the use of rails or adhesive plastics. Instead of
roughening the underside of the baseplate plate by scoring, the
underside may also have a nonslip layer applied or adhesively
bonded to it. The shape of the mounting frames is also not
restricted to the above-described square shape, and any shapes
which can be assembled to form larger areas may be used, such as
triangles, rectangles, parallelograms, hexagons, and shapes derived
therefrom by rectilinear parts. The possibilities of assembly are
not limited to identical shapes, but different shapes may also be
assembled, provided that dimensions adjusted to one another are
used for all shapes and that the distances between the fastening
elements are always the same.
Thus, particularly when using mounting frames of different shapes,
it is possible to produce coverings for large surfaces in any
desired pattern, which are secured against mutual displacement but
can be changed or removed at any time. Moreover, the edges of the
individual parts of the covering which are to be inserted are
thereby effectively protected against wear, and parts of different
thickness can be raised by the use of compensating pieces inserted
between the inserted parts and the bottom plate of the mounting
frames, in order to form a large flat surface, and finally through
the fastening of individual mounting frames together, the nonslip
surface on the underside of the mounting frames can prevent the
displacement of the covering, particularly in the case of floor
coverings.
It will be appreciated that other modifications may be made to the
above-described mounting frame without departing from the spirit
and scope of the invention.
* * * * *