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Патент USA US3037774

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June 5, 1962
Filed March 8, 1960
United States Patent 0
Patented June 5, 1962
7 of a frame by means of textile straps, the free ends
Lader Berg, Spjelkavik, near Alesund, Norway
Filed Mar. 8, 1960, Ser. No. 13,687
Claims priority, application Norway Mar. 9, 1959
5 Claims. (Cl. 267-110)
easily be adapted to different sizes of frames by varying
of which are nailed to the frame at 8.
A supporting device according to the invention can
the length of the fastening straps. Only one size of the
resilient plat-e is therefore required for a Very great num
ber of different sizes of chairs and beds. The fastening
of the straps are also better and thinner as compared
with that of rubber bands which are fastened directly
This invention relates to a resilient plate which is in
tended as a support for a sitting and lying person by
being suspended in a frame, for instance a frame of a 10 to the frame, so that the displeasing raised portions easily
bed, a chair etc. to constitute a springy support.
formed by rubber bands are avoided.
It is known, in connection with frames for beds and
A plurality of plates, such as of square form, may
chairs, to use broad and thick rubber bands which are ex.
easily be connected together by straps, hooks or the
panded between the sides of the frame, the bands being
like to form greater lengths so as to make them suitable
braided with each other so that a springy sitting or ly 15
ing support is obtained. This springy device has, how
ever, the drawback that the rubber bands have to be
relatively thick so that the points where they are fastened
to the frame, which is often done by means of nails or
special gripping devices, raised portions will occur caus 20
ing uneven edges when a fabric is stretched over the
seat of a chair. Furthermore, it is difficult to stretch
as resilient supports in sofa-backs, sofa-seats, beds, etc.
Such a resilient support is illustrated in FIG. 4 which
shows two elastic plates 1 identical with those shown in
FIG. 1 connected by straps 4' and jointly suspended in
a common frame 7 ’ by means of straps 4.
I claim:
1. A resilient support for a chair seat, mattress and the
like, comprising a plate member of resilient material hav
ing a plurality of regularly distributed openings passing
to each other due to friction when braided so that they
therethrough, said openings de?ning a pattern of elon—
cannot expand evenly over the entire length.
25 gated ribs therebetween and an edge portion integral with
The object of this invention is to provide a resilient
said ribs and elongated transversely of said ribs; a frame;
the rubber bands evenly and correctly because they bind
sitting or lying support which is not subjected to the
above mentioned drawbacks. A sitting or lying support
according to the invention consists of an elastic support
ing device in the form of a plate, for instance of rubber,
polyvinyl chloride or the like, which is perforated and
and a plurality of elongated straps of a material less
resilient than the material of said plate member threaded
through respective ones of said openings adjacent said
edge portion, said straps being fastened to said frame to
connect the resilient plate member with said frame.
suspended in a frame, such as the frame of a chair, a
2. A resilient support as claimed in claim 1, wherein
bed etc., by means of straps which are threaded through
said plate member has quadrangular form and said open
the perforations at the edges of the plate and are fastened
ings de?ne a network of intersecting ribs.
to the frame, which straps may consist of strong textile. 35
3. A resilient support as claimed in claim 1, wherein
The invention is to be described in the following with
said plate member is of circular shape and said openings
reference to the accompanying drawing, in which '
de?ne a spoke-like pattern of ribs.
FIG. 1 is a top view of a supporting device according
4. A resilient support as claimed in claim 1, wherein
to the invention and suspended in a frame of a chair,
edge portion is thicker than the average thickness
FIG. 2 is a top view of an alternative construction of 40 of said plate member.
the supporting device according to FIG. 1,
5. A resilient support for a mattress and the like, com
FIG. 3 is a section through the supporting device ac
prising a plurality of plate members of resilient mate
cording to FIG. 1 taken along the line A-A, and
rial juxtaposed edge to edge, each member having a plu
FIG. 4 shows yet another supporting device of the in
rality of regularly distributed openings passing there
45 through said openings de?ning a pattern of elongated
The supporting device according to FIGS. 1 and 2 con
ribs therebetween and an edge portion integral with said
sists of an elastic plate 1, such as of rubber or polyvinyl
ribs and elongated transversely of said ribs; a frame; and
chloride, which plate has a number of perforations 3.
a plurality of elongated strap means of a material less
The plate is ?tted with strengthening ribs 2 around the
resilient than the material of said plate members thread
perforations and the edges, and it is attached to a frame 50 ed through respective ones of said openings adjacent the
7 of a chair by means of straps 4, for instance strong
edge portions of said plate members, a ?rst group of said
textile straps. The free ends of the straps are fastened
strap means passing through the openings adjacent the
to the frame by means of nails. The perforations are
juxtaposed edges of said plate members to connect the
arranged symmetrically in the plate so that there is ob
same, and a second group of said strap members being
tained a resilient device consisting of uninterrupted parts
fastened to said frame.
‘ 7
in two directions. Because the uninterrupted parts in
References Cited in the ?le of this patent
both directions are ?xed to each other, the supporting
device can take up stresses in the diagonal direction, so
that the material is better utilized than in the devices con 60
Bernstein ____________ .._ Sept. 22, 1936
sisting of braided bands.
Beck et al _____________ __ Dec. 14, 1937
The embodiment shown on FIG. 2 differs from that
Van Derveer _________ __ June 20, 1939
shown in FIG. 1 in that the plate is circular and that
Eaton _______________ __ June 23, 1942
the perforations are arranged radially in the plate. The
plate has, in addition thereto, a circular perforation 9 65
at the centre.
In FIG. 3 a section of the supporting device of FIG. 1
is shown. The plate 1 is suspended between two sides
France ______________ __ Aug. 5,
Italy _________________ __ Feb. 10,
Great Britain _________ __ May 8,
Great Britain _________ .._ Mar. 25,
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