U.S. patent number 3,895,840 [Application Number 05/374,540] was granted by the patent office on 1975-07-22 for chair seat adapter.
Invention is credited to Dolores Szurszewski.
United States Patent |
3,895,840 |
Szurszewski |
July 22, 1975 |
Chair seat adapter
Abstract
This invention is a two-part double L shaped adapter or brace,
for holding a pillow filled cover, to decrease the seating depth of
a chair, giving firmer, straighter back support, with the
horizontal part of said brace positioned under an existing chair
cushion for stability and secure placement. An alternate
construction of the pillow filled cover being elongated U-shaped
extrusions, attached to the face of each vertical member of said
brace, having thereon a heavy vinyl like material attached to and
extending from one elongated U-shaped extrusion to the other. The
invention is especially suitable for short persons and those
desiring a firm vertical back support.
Inventors: |
Szurszewski; Dolores
(Pittsburgh, PA) |
Family
ID: |
23477288 |
Appl.
No.: |
05/374,540 |
Filed: |
June 28, 1973 |
Current U.S.
Class: |
297/230.11;
297/440.15; 5/633 |
Current CPC
Class: |
A47C
7/42 (20130101) |
Current International
Class: |
A47C
7/40 (20060101); A47C 7/42 (20060101); A47C
007/42 () |
Field of
Search: |
;297/230,231,444,443,352,252 ;5/59R,327B,327R,317R |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Zugel; Francis K.
Attorney, Agent or Firm: Ruano; William J.
Claims
What I claim is:
1. A back support for short persons for decreasing the seating
depth of a chair or safa seating cushion, comprising a pair of
L-shaped members, cross-members for rigidly supporting horizontal
and vertical legs of said L-shaped members in spaced, parallel
relationship, said L-shaped members being of tubular construction
and said vertical legs having bottom ends of reduced diameter which
slip-fit into vertically upwardly extending extensions of said
horizontal legs to form a readily detachable fit therewith,
U-shaped elements having extremities secured to the top and bottom
portions of said vertical legs, a back-contacting resilient
supporting means mounted on said U-shaped elements by fastening
means, said U-shaped elements extending in the same direction as
said horizontal legs, and said back contacting surface extending in
a vertical plane in spaced parallel relationship to said vertical
legs by the distance desired for decreasing the seating depth of
said seating cushion, said back contacting resilient supporting
means comprising a sheet of flexible material stretched between the
base portion of said U-shaped elements to serve as said back
resting surface, said horizontal legs extending underneath said
seating cushion and said vertical legs resting against the back of
said chair or sofa cushion, the bottom end of said resilient
supporting means being spaced by about the thickness of said
seating cushion from said horizontal legs, without obstruction
therebetween so as to allow said seating cushion to fit
therebetween and extend laterally outwardly of the vertical planes
of said L-shaped elements, and so that when a short person is
seated, his weight rests on the seating cushion and horizontal legs
of said back support to hold the back support firmly in place.
Description
This invention relates to a chair adapter holding a covered pillow
or elongated U-shaped extrusions for decreasing depth of seats of
existing chairs or sofas found in the home. Firmer, straighter back
support and decreased seating depth would be available for short
persons or those will disabilities who find discomfort with the
majority of chairs and sofas now in use.
Another object of this invention is the stability and secure
placement by inserting the horizontal part under existing chair or
sofa cushion, prohibiting brace from falling over or moving out of
place.
Still another object and advantage is the ease of storage and
packaging by the separation defined in the specifications and
claims.
Still another object is the long life, under normal usage, with no
moving parts to get out of order.
A still further object and advantage is the different modes of
construction .
Other objects and advantages will become more apparent from a study
of the following description taken with the accompanying drawing
wherein:
FIG. 1 is a rear perspective view of a completely assembled unit
embodying my invention;
FIG. 2 is a rear, perspective view of a completely assembled
alternately constructed unit;
FIGS. 3a and 3b are enlarged, fragmentary plan views of a portion
of FIGS. 1 and 2, respectively; and
FIG. 3c is an enlarged fragmentary plan view of a portion of FIG.
2.
Referring now to the drawing in detail, wherein like parts are
indicated by like reference characters throughout the several
views:
FIG. 1 shows the adapter of the present invention applied to a sofa
cushion 8.
The vertical part of the double L shaped brace of the adapter is
constructed of tubing 5 or like material with two cross-pieces 6 of
the same material 5, being placed at equal distances from each end
of vertical members and joining by welding or brazing to said
vertical members for spacing and support. Upper ends of vertical
members 5 are capped by caps 20.
The bottom several inches of vertical members 5 of FIG. 1 are
slightly decreased in circumference by an inverted U shape crimp
18a (FIG. 3c) giving ease for insertion into socket 18b extending
from the horizontal part of brace 7.
Horizontal part 7 also of tubing or like material, is shorter in
length as compared to vertical part 18b and having 90.degree.
-angle extending vertically for several inches to receive crimped
components 18a of the vertical part. Both horizontal ends are
capped by cap 19. One cross-piece is centered and joined for
spacing and support.
Pillow cover 9 having pocket type appendages 10 of several inches
in length are placed at seams of the upper rear corners for
slipping over capped upper ends of vertical members 5 and having a
zipper 12 centered across the bottom of the cover and extending
upwards several inches on each side for easy removal of said cover
and having ties 11 placed at the rear of said cover, low enough for
tying below lower cross-piece 6 of vertical part 5 with the cover
of about 16 inches high being 4 inches shorter than said vertical
members 5 and having a minimum of 4 inches in thickness, said cover
therefore being filled with a firm filling such as latex foam
rubber.
FIG. 2 shows a modification of the invention which incorporates
basic ideas of FIG. 1 and is comprised of two elongated U-shaped
extrusions of tubing 15, being 4 inches shorter than the vertical
members 5 and joined to the face of said vertical members. In
keeping with the idea of a pillow cover alternate, the extrusions
15 are joined to the upper face of vertical members 5 and 4 inches
up from the ends of said members, leaving said 4 inches exposed. A
heavy vinyl like material 16 is stretched across and over the face
of U-shaped extrusions 15, having eyelets 17 for reinforcement,
evenly spaced along the outer edge of said vinyl 16 and attached to
the underside of the extrusion, warding off any change of snagging
of clothing.
FIG. 3a shows cap 19 separated from the end of horizontal part 7,
and FIG. 3b shows cap 20 separated from the top of vertical tubing
5.
FIG. 3c is an enlarged fragmentary view of a portion of FIG. 2 with
part 18b shown cut-away to more clearly illustrate the slip-fit
between the downwardly tapered portion 18a and the socket portion
18b.
To reiterate, the horizontal part 7 of the brace is placed
underneath an existing chair or sofa cushion 8 (FIG. 1) for
stability and necessiating a pillow filled cover 9 and/or
extrusions 15 to be 4 inches shorter in height than vertical
members 5 of FIG. 1 or FIG. 2 so the full value of the adapter for
making shallower seating depth for small persons can be
facilitated.
It is now seen that there is herein provided an improved chair
adapter having all of the objects of the instant invention and
others, including many advantages of great practical utility and
commercial importance.
While specific embodiments of the invention have been shown and
described in detail to illustrate the application of the principles
of the invention, it will be understood that the invention may be
embodied otherwise without departing from such principles.
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