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Publication numberUS2769485 A
Publication typeGrant
Publication dateNov 6, 1956
Filing dateAug 28, 1951
Priority dateAug 28, 1951
Publication numberUS 2769485 A, US 2769485A, US-A-2769485, US2769485 A, US2769485A
InventorsShapiro Jacob
Original AssigneeShapiro Jacob
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Back rest
US 2769485 A
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Description  (OCR text may contain errors)

J. SHAPIRO Nov. 6,- 1956 BACK RESTI Filed Aug. 28, 1951 Tra/ENEMY United States Patent O BACK REST Jacob Shapiro, Baltimore, Md. Application August 2S, 1951, Serial No. 243,981

1 Claim. (Cl. 155-182) 'Ihis invention is a back rest primarily intended to support the back while the user is in a sitting position, but is also adapted for use While lying in a bed or on the floor or other horizontal support; the rest in its main embodiment is a separate portable unit but may be incorporated into the back of a seat if desired.

It is an object of this invention to provide a scientifically designed back rest not only to assure comfort while the user is in a sitting position, but is constructed to lit and brace the lumbo-sacral spine with resultant orthopedic benefits. This is accomplished through the use of properly contoured foam rubber cushions in conjunction with strategically positioned inherently rigid plates made of aluminum or like suitable material so that a desirable cushioning effect is obtained yet the spine is positively supported to prevent unnatural spine curvature and to help correct spine malformation due to improper posture.

Another object of the invention is to provide a cushioned back rest which includes a base or back plate of aluminum or like material which is inherently rigid and has secured to one face a contoured foam rubber cushion in which a second plate is embedded, the latter moving as an entity with the cushion when pressure is placed thereon by the user.

Other objects of the invention will be apparent from the following description of the presently preferred forms of the invention, taken in connection with the accompanying drawings, wherein:

Fig. 1 is a side elevational View of one form of the invention illustrating its application;

Fig. 2 is a vertical sectional view of the form of back rest shown in Fig. l;

Fig. 3 is a perspective view of the base plate used in the form of invention illustrated in Figs. 1 and 2;'

Fig. 4 is a fragmentary perspective view of a modiied form of back rest;

Fig. 5 is a side elevational view of the form of back rest illustrated in Fig. 4, and

Fig. 6 is a perspective view of a plate embedded in the cushion forming a part of the back rest.

In the drawings in order to illustrate the application of this invention, `a chair 7 is illustrated. It is, of course, to be understood that the rest of this invention is intended for use particularly in automobiles and other conveyances and is also adapted for use on any support upon which a person may be seated. Additionally, in the form of the invention illustrated in Figs. 4 and 5, the rest is adapted for use on a floor or other horizontal support.

The form of invention illustrated in Figs. 1, 2 and 3 includes a base plate 8 which is preferably made of aluminum, having a main vertical portion and an extended horizontal portion 9 which may be of any desired length.

2,769,485 Patented Nov. 6, 1956 The rest further includes a foam rubber cushion generally designated 10 in which a flat rectangular plate 11 is embedded, the margins of the plate being spaced from the margins of the cushion as is apparent from Figs. 2 and 4 of the drawings. The front of the cushion is contoured as indicated -at 12 to tit the lumbo-sacral region of the back. While the cushion 10 may be formed in a single unit, it is also practical and feasible to form it in multiple layers or strata, as shown in Fig. 2. In this form of the invention, Figs. l, 2 and 3, the cushion 10 is supplemented with a foam rubber block 13 which is superimposed on the right rangle horizontal portion 9 of the base plate. In actual use I have found that good results are obtained by extending the forward end of the block in advance of the forward margin of the portion 9, as shown in Fig. 2, so that said forward edge will fit below the buttocks of the user and beneath the spine.

The rest further includes a zippered cover 14 made of any suitable fabric.

In the form of invention illustrated in Figs. 4 and 5, a base plate 8 is shown which omits the right angle portion 9 of the form of invention shown in Figs. l, 2 and 3. Otherwise the plate is the same as shown in Fig. 3. A cushion 10' of identical construction to the cushion 10 is also employed in which a plate 11 isembedded, the outer wall of the cushion being contoured as indicated at 12 and the entity encased in a zippered fabric cover 14'. This form of the invention may be used as a back rest in exactly the same manner as the form of invention shown in Figs. 1 to 3 if desired. However, it is further adapted for use on a bed, oor or other horizontal support so that the user may derive the benetits flowing from the rest, in accordance with the teachings of this invention, While lying down.

In use of this invention, whether used while in a sitting position or lying down, the base plate is engaged with a xed object such as a seat back, bed, oor or the like. When pressure is exerted on the contoured portion of the cushion, the inside plate 11 is moved toward the base plate 8 or 8', depending upon the form of back being used. This I have found from experience gives a desirable cushioning elect to the back yet the spine is definitely braced. The rest is particularly useful where the body is subjected to shocks such as are occasioned while traveling in a motor vehicle.

Although I have herein illustrated two forms of my invention, it is understood that various changes may be made therein Within the scope of the claim hereto appended.

What I claim is:

A back rest comprising a base plate having a Vertical portion and a horizontal portion, an elastic block superimposed on the horizontal portion of the base plate, an elastic cushion mounted on said block and secured to the vertical portion of the base plate, and a plate embedded in said cushion the margins of said plate being spaced from the margins of the cushion.

References Cited in the le of this patent UNITED STATES PATENTS 1,667,626 Epstein Apr. 24, 1928 1,756,182 Drane Apr. 29, 1930 1,937,920 Smith Dec. 5, 1933 2,021,825 Ackerman Nov. 19, 1935 2,143,534 Assalit Ian. 10, 1939 2,469,084 Schenker May 3, 1949

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1667626 *Mar 24, 1927Apr 24, 1928Max EpsteinSpine support
US1756182 *Jan 20, 1928Apr 29, 1930Drane Brent SAuxiliary seat
US1937920 *May 18, 1931Dec 5, 1933Elmer Smith HarryPad for chair and seat backs
US2021825 *Apr 30, 1934Nov 19, 1935Studebaker CorpResilient pad
US2143534 *Jan 30, 1937Jan 10, 1939Louis AssalitSeat for vehicles
US2469084 *Jan 1, 1945May 3, 1949Abraham W SchenkerBody resting appliance
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2853122 *Jan 17, 1957Sep 23, 1958Shapiro JacobBack rest or support and method of making same
US2853124 *Sep 27, 1957Sep 23, 1958Jacob ShapiroCombination portable ventilated seat cushion and ventilated back cushion for motor vehicle seats, etc., and process of making same
US3087172 *May 4, 1959Apr 30, 1963Arno Samuel RRecumbent back supports
US3298742 *May 11, 1965Jan 17, 1967Citroen Sa AndreBench seat
US3361471 *Aug 18, 1966Jan 2, 1968Warren S. RadfordBack support
US3669499 *Dec 30, 1970Jun 13, 1972Steelcase IncChair
US3953072 *Oct 19, 1973Apr 27, 1976Salomon EsquivelOrthopedic cushion
US4506929 *Jul 26, 1982Mar 26, 1985Josefek Kirt LLumbar ridge supporting
US4512047 *Sep 7, 1983Apr 23, 1985Johnson Violet MSupport cushion
US4796315 *Jan 27, 1986Jan 10, 1989Crew Randolph ERotationally contoured lumbar cushion
US4835801 *Nov 19, 1987Jun 6, 1989Roloke Co.Back support cushion
US5316375 *Jul 16, 1992May 31, 1994Buddy Orthopoedic Inc.Back support and internal frame
US5433505 *Jun 14, 1994Jul 18, 1995Master Manufacturing Co.Adjustable seat and back cushion
US6125851 *Jul 15, 1997Oct 3, 2000Walker; Brock M.Spinal support system for seating
US6532962Aug 8, 2000Mar 18, 2003Brock M. WalkerSpinal support system for seating
US6688686 *May 1, 2000Feb 10, 2004Johnson Controls Technology CompanyHigh density seat insert comprising polyethylene, polypropylene, polystyrene, and/or polyurethane
US7651163 *Dec 2, 2002Jan 26, 2010Logicback, Inc.Lumbar support device
US8398170Oct 5, 2007Mar 19, 2013Brock WalkerActive response seating system
US20110148157 *Dec 9, 2010Jun 23, 2011Faurecia Automotive Seating, Inc.Vehicle seat with pelvis-motion regulator
WO1987007124A1 *May 25, 1987Dec 3, 1987Peter George Gordon GregoryA chair member
Classifications
U.S. Classification297/452.32, 297/DIG.100, D06/601
International ClassificationA47C7/20, A47C27/16, A47C7/42
Cooperative ClassificationY10S297/01, A47C27/148, A47C7/20, A47C27/16, A47C7/425, A47C27/146
European ClassificationA47C27/14E, A47C27/14C4, A47C7/20, A47C7/42B, A47C27/16