U.S. patent number 3,679,263 [Application Number 05/050,717] was granted by the patent office on 1972-07-25 for seat comprising independently mounted blocks of deformable elastic padding.
This patent grant is currently assigned to Societe Anonyme Automobiles Citroen. Invention is credited to Jean Georges Cadiou.
United States Patent |
3,679,263 |
Cadiou |
July 25, 1972 |
SEAT COMPRISING INDEPENDENTLY MOUNTED BLOCKS OF DEFORMABLE ELASTIC
PADDING
Abstract
Seat comprising deformable elastic padding which consists of
blocks of elastic material which are juxtaposed to each other but
are connected to each other only to the extent that their bases are
connected to a common flexible mounting sheet.
Inventors: |
Cadiou; Jean Georges (St.
Cloud, FR) |
Assignee: |
Societe Anonyme Automobiles
Citroen (Paris, FR)
|
Family
ID: |
9036511 |
Appl.
No.: |
05/050,717 |
Filed: |
June 29, 1970 |
Foreign Application Priority Data
|
|
|
|
|
Jun 27, 1969 [FR] |
|
|
6921734 |
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Current U.S.
Class: |
297/452.48;
5/653; 5/736; 5/731; 297/DIG.1 |
Current CPC
Class: |
A47C
7/282 (20130101); B60N 2/70 (20130101); B60N
2/7035 (20130101); B60N 2/00 (20130101); Y10S
297/01 (20130101) |
Current International
Class: |
A47C
7/00 (20060101); A47C 7/18 (20060101); B60N
2/00 (20060101); B60N 2/70 (20060101); A47c
007/02 () |
Field of
Search: |
;297/455,456,457,DIG.1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Mitchell; James C.
Claims
What is claimed is:
1. A seat comprising a rigid surface divided into a seat part and a
back part, each comprising a resilient sheet lying on a rigid
preformed surface, and a single padding member which covers both
parts, said padding member comprising a plurality of discrete
elastic flexible padding units mounted side by side on a flexible
sheet sealed to said resilient sheets and a peripheral border which
surrounds said units and projects from said flexible sheet at least
as far as said padding units, each of said units being individually
covered by cover means which constitutes the general outer surface
of said seat and individually sealed to said flexible sheet, and
said units being connected together only by said flexible
sheet.
2. A seat as claimed in claim 1 in which both the length and width
of the padding member are divided into a plurality of individual
padding units.
Description
SUMMARY OF THE INVENTION
Conventional upholstery for the seats of automobiles comprises an
outer covering so mounted as to entirely cover the frame, the
springs, and the padding. Under these conditions, any load imposed
upon the supporting surfaces produces peripheral tensions all
around the cover which result in undesirable resistance to
depression of the padding and impair comfort. This defect is
particularly noticeable in the cases of seats for sport cars
because the vibrations of their suspensions must be considerably
reduced due to the contour of their bodies.
The present invention has for its object a seat comprising
deformable elastic padding, especially adapted for use in vehicles,
which is characterized in that its upper surface, which receives
the weight of the driver or passengers, consists of independent
juxtaposed members which do not react with each other, but each of
which yields freely and independently to the specific pressures
which are applied thereto. These are attached at their bases to a
common flexible sheet. Their depression avoids the limiting effects
conventionally created by peripheral tensions.
In one embodiment of the invention, the padding of the seats
consists of small blocks of elastic material such as foam rubber,
for example, which are covered by a covering material individually
surrounding each of these blocks. These blocks may be of various
shapes, (cubical for example). They may also consist of elongated
members of any section either transversely or longitudinally
positioned. In certain cases, these elongated members may extend
the full length or width of the seat surface, or of that portion of
the seat surface within an encircling border. The group of blocks
may be encircled by a peripheral border member.
The attached drawing illustrates by way of example one embodiment
of the present invention. In this drawing:
FIG. 1 is a perspective view of the vehicle seat;
FIG. 2 is a longitudinal section through said seat; and
FIG. 3 is a transverse sectional view through said seat.
The seat of the vehicle shown comprises a peripheral border 1
within small cubical elastic blocks 2 are uniformly distributed.
These blocks are attached at their bases to a flexible sheet 3, by
heat-sealing them thereto, or in any other suitable manner. A small
space i exists between the upper edges of each of the blocks but
this may be reduced to zero, provided these edges remain free to
move relative to each other. Intervals f, f.sub.1, and f.sub.2 are
provided between the bases of the blocks and these may be of
different dimensions, varying with the radius of curvature of the
support, the greater the radius, the smaller the interval.
The elastic blocks 2 and border 1 are individually covered by a
suitable covering material 7, preferably of plastic.
The support may comprise a rigid pre-shaped member 4 mounted on
tubular mounting means 5 and covered by a thin resilient sheet 6
positioned beneath the flexible sheet 3 to which the blocks are
attached.
As shown in FIG. 3, each of these elastic blocks may be compressed
under the weight of a load P without substantially affecting the
adjacent blocks. They may be attached to the flexible sheet 3 after
it has been put in place. The seat proper and its back may be
separate, or may on the contrary, as illustrated, be formed in one
piece as a bucket seat. When the seat proper and the back are
separate, the plastic blocks are formed into two groups, one for
the seat proper, and one for the back, connected only by said
flexible sheet.
* * * * *