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Publication numberUS2673600 A
Publication typeGrant
Publication dateMar 30, 1954
Filing dateApr 12, 1951
Priority dateApr 12, 1951
Publication numberUS 2673600 A, US 2673600A, US-A-2673600, US2673600 A, US2673600A
InventorsRoy A Cramer
Original AssigneeCramer Posture Chair Co Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Molding for chair backs or the like
US 2673600 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 30, 1 R, A. CRAMER MOLDING FOR CHAIR BACKS OR THE LIKE Filed April 12, 1951 IN V EN TOR.

ATTORE 5 I Patented Mar. 30, 1954 MOLDING FOR CHAIR BACKS OR THE LIKE Roy A. Cramer, Kansas City, Mo., assignoi' to Cramer Posture Chair 00., Inc., Kansas City, Mo., a corporation of Missouri Application April 12, 1951, Serial No. 220,690

This invention relates to a molding or bumper strip and is particularly adaptable for the back of a chair, automobile seat or other devices requiring a covering and molding or trimming at the juncture of two surface portions.

Heretofore in the construction of an upholstered office chair or the like, it has been the usual practice to draw the upholstering of the back about a cushion member and then over the edges to the rear side of a cushion support plate and fastening the same. An outer plate is usually fastened to the back side of the support plate. As the chair or other article is used, the upholstering wears against the supporting plate, due to contact with other oflice fixtures and also to the normal slipping strain when in use, and the back plate with its clamping action tends to wear the upholstering material.

It is, therefore, the principal objects of the present invention to obviate these undesirable features; to proside a molding and bumper for the edges of the decks of chairs or the like having a supporting plate and clamping plate with a resilient member for engagement of the upholstering material and a second resilient member for engaging the edges of the clamping plate to engage the upholstering and retain the same in non-slipping relation to the first resilient member thereby providing a cushioning effect; to provide a device of this character for preventing marring of furniture, walls and the like with which a chair comes in contact and to prevent wear of the edges of the upholstery of the chair; to provide a device of this character which will prevent chipping or marring of the enamel on the back plate of a chair or the like; and to provide a device of this character, simple, economical to manufacture and eflicient in operation.

In accomplishing these and other objects of the invention as hereinafter pointed out, I have provided improved details of structure, the preferredform of which is illustrated in the accompanying drawings, wherein:

Fig. 1 is a fragmentary cross sectional view of a part of a chair or the like having a supporting plate and clamping plate particularly illustrating my molding structure.

Fig. 2 is a vertical cross sectional elevational view through my device.

Fig. 3 is a fragmentary view showing the inner -molding or bumper member.

Fig. 4 is a fragmentary cross sectional view of the outer molding or bumper member.

Referring more in detail to the drawings:

1 Claim. (Cl. 155-184) While my invention may be adapted to various articles of furniture, automobile seats and the like, I will describe the same in relation to a chair back or the like.

I designates the back of a chair having a supporting plate 2 to which is attached a resilient cushion member 3 usually made of sponge or foam rubber or the like. The supporting plate 2 is provided with a plurality of threaded bore openings 4 adapted to receive the threaded shank 5 of screws or the like 6 for retaining a clamping plate.| on the supporting member. lhe clamping plate is substantially of the same size as the supporting plate and each is provided with peripheral edges 8 and 9, respectively.

member I3 is provided of substantially triangular shape with the outer or upper portion roundas indicated at I5. One of the angle shaped sides is provided with a groove or slot I6 adapted to engage the periphery of the edge 8 of the clamping plate I as best illustrated in Fig. 2. The bumper members In and I3 are preferably made of rubber, plastic or other resilient material.

The cushion member 3 is provided with a covering or upholstery material [1, such as fabric or the like, having its free edges hemmed providing a loop l8, through which a fastening device l9, such as cord, wire or the like, is drawn for tightening the upholstery as is the usual practice. The upholstering material is drawn over the side of the wounded portion I! of the molding or bumper Ill and lies alongside of the face 20 thereof, the loop I8 extending slightly below the lower edge of the bumper. The side face 2| of the bumper l3 engages against the outer edge of the upholstering material with its point l5 engaging the loop portion so that the upholstery material lies between the two bumper members as best illustrated in Fig. 2, and thus retain the upholstering material between the bumpers and prevent its slipping or becoming loose. The clamping plate I is then secured'to the supporting plate by the screws-6. The pressure of the edge 8 of the plate I on the bumper l3 against the bumper l0 prevents the bumper l3 from becoming loose and pulled out until the plate I is released.

The sides of the angle shaped bumper l3 are substantially flat or plane and the slot l6 extends inwardly at substantially a right angle on the outer side as illustrated in Fig. 2, so that the outer edge of the clamping plate presses the opposite side of the bumper against the other bumper at the upper edge thereof, and thus allows flexing of the inner bumper to prevent wearing of the rubber and material.

It will be obvious from the foregoing that I have provided an improved bumper or molding for chairs or other articles which will securely hold the upholstery to the'back of the chair and prevent wearing thereof and which will prevent marring of furniture, walls or the like due to contact of the chair with such objects and also a device which may be readily assembled and disassembled when necessary to change the upholstering material.

What I claim and desire to secure by Letters Patent is:

A back structure for a chair or the like comprising, a supporting plate and a clamping plate having peripheral edges, a cushion member on the supporting plate, a rubber member having a slot for engaging the peripheral edge of the sup-porting plate, the sides of said rubber member vJeing tapered upwardly and terminating in a rounded upper edge and the sides having substantially plane surfaces, an upholstering materia1 covering the cushion member and extending over the outermost plane surface of said rubber member, means on the edge of the upholstering material for securing same to the supporting plate, a substantially V-shaped rubber member having two substantially plane surfaces and a rounded upper surface, one of said plane surfaces having a slot engaging the peripheral edge of the clamping plate and the other plane surface being substantially coextensive with and engaging the upholstering material extending over the plane surface of the first rubber member, said last named slot extending inwardly of said plane surface at an angle toward the upper edge of the opposite plane surface of said member so that the last named plane surface lies flat against the plane surface of the first rubber member, the point of the V- shaped rubber member engaging the upholstering securing means to prevent the material from being withdrawn from between the two rubber members, and means securing the clamping plate to the supporting plate, said clamping plate being of substantially the same size as the supporting plate and having its center portion spaced therefrom and its outer portion turned inwardly at an angle to exert pressure of the V-shaped rubber member against the rubber member on the supporting plate.

ROY A. CRAMER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 178,613 Elbert June 13, 1876 1,497,247 Scrutton June 10, 1924 1,681,942 Ledwinka Aug. 28, 1928 2,046,649 Nordmark July 7, 1936 2,047,747 Schemmel July 14, 1936 2,184,572 Wainess Dec. 26, 1939 2,205,465 Campbell June 25, 1940

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US178613 *Jun 13, 1876 Improvement in cushions for upholstery of furniture
US1497247 *Jan 30, 1920Jun 10, 1924Eugene Scrutton HubertPerambulator and other vehicle
US1681942 *Nov 20, 1926Aug 28, 1928Budd Edward G Mfg CoCowl ventilator
US2046649 *May 3, 1935Jul 7, 1936American Seating CoChair
US2047747 *Nov 15, 1933Jul 14, 1936Schemmel Robert CTrimming molding
US2184572 *Sep 26, 1938Dec 26, 1939Joseph S WainessUpholstery edge
US2205465 *Oct 30, 1937Jun 25, 1940Chrysler CorpSeat back cushion
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2821243 *Jun 21, 1954Jan 28, 1958Ohio Commw Eng CoCushion and method and apparatus for manufacture
US3003243 *Feb 6, 1958Oct 10, 1961Hamilton Mfg CoCombined pencil trough, instrument guard and drafting machine track for drawing board
US3055722 *May 18, 1960Sep 25, 1962Metropolis Bending CompanySafety table with endless securing strip thereon
US3089276 *Mar 20, 1961May 14, 1963Brooks Harold EBumper for furniture or the like
US3154110 *Sep 27, 1962Oct 27, 1964Rockett William CLoom reed
US3281185 *Jun 24, 1965Oct 25, 1966Miller Herman IncFurniture construction
US4106739 *May 19, 1977Aug 15, 1978Gasser George EBumper edge member for chairs
US4390210 *Dec 15, 1980Jun 28, 1983Haworth Mfg., Inc.Blind connecting structure for inner and outer shells of chair back
US4643480 *Aug 1, 1985Feb 17, 1987Tachikawa Spring Co.Structure for securing the trim cover assembly of a seat back
US6055718 *Dec 1, 1998May 2, 2000Evans Consoles Inc.Flexible nosing system
US7264298 *Apr 29, 2005Sep 4, 2007Yamaha Motor Mfg. Corp. Of AmericaSeat unit for a small-sized vehicle
US7419212 *Oct 27, 2005Sep 2, 2008Haygood David LProtective strips for use in the manufacture of upholstered furniture
US7556318 *Sep 28, 2006Jul 7, 2009Ts Tech Co., Ltd.Vehicle seat and method for manufacturing the same
US7998551Jan 3, 2008Aug 16, 2011Gasser Chair Company, Inc.Unitary molded, shaped and sized protective edge made of elastomeric material
US8973990Sep 17, 2013Mar 10, 2015Steelcase Inc.Chair assembly
US8998338Sep 17, 2013Apr 7, 2015Steelcase Inc.Chair assembly with upholstery covering
US9049935Sep 17, 2013Jun 9, 2015Steelcase Inc.Control assembly for chair
US9167910Sep 17, 2013Oct 27, 2015Steelcase Inc.Chair assembly
US9173491Sep 17, 2013Nov 3, 2015Steelcase Inc.Chair assembly with upholstery covering
US9179777Sep 17, 2013Nov 10, 2015Steelcase Inc.Method of assembling a chair component
US9345328Jul 7, 2015May 24, 2016Steelcase Inc.Chair assembly with upholstery covering
US9526339Jun 8, 2015Dec 27, 2016Steelcase Inc.Control assembly for chair
US20060244281 *Apr 29, 2005Nov 2, 2006Steven CoverSeat unit for a small-sized vehicle
US20070096520 *Oct 27, 2005May 3, 2007Haygood David LProtective strips for use in the manufacture of upholstered furniture
US20080079305 *Sep 28, 2006Apr 3, 2008Ts Tech Co., Ltd.Vehicle seat and method for manufacturing the same
US20080166515 *Jan 3, 2008Jul 10, 2008Gasser Chair Company, Inc.Unitary molded, shaped and sized protective edge made of elastomeric material
USD742678Apr 10, 2015Nov 10, 2015Steelcase Inc.Chair assembly
USD750406Apr 10, 2015Mar 1, 2016Steelcase Inc.Chair assembly
Classifications
U.S. Classification297/452.59, 297/452.38, 297/463.1, 52/716.4
International ClassificationB60N2/70, A47C31/02
Cooperative ClassificationB60N2/7041
European ClassificationB60N2/70W4B