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Publication numberUS3610685 A
Publication typeGrant
Publication dateOct 5, 1971
Filing dateJul 1, 1969
Priority dateJul 1, 1969
Publication numberUS 3610685 A, US 3610685A, US-A-3610685, US3610685 A, US3610685A
InventorsLay Ralph B
Original AssigneeHamilton Cosco Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Backrest pad
US 3610685 A
Abstract  available in
Images(1)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Primary Examiner-Francis K. Zugel Attorney-Trash Jenkins & Hanley ABSTRACT: A backrest pad for attachment to a chair having a backrest formed from transverse slats. The pad comprises a sheet of padding and a hardboard panel] encapsulated in a sturdy and flexible cover forming an outer envelope for the pad. The cover also extends from the top and bottom edges of the padding and panel to form a pair of flaps on the envelope for embracing a portion of the slats to fasten the pad thereon. The envelope is formed by two sheets of material which are so shaped as to require a minimum number of seams while yielding a sturdy and highly functional pad.

PAT-ENTEU am 5197:

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INVENTOR. RALPH B. LAY

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ATTORNEYS BACKREST PAD BACKGROUND OF THE INVENTION desirable to have a pad on such backrests, the pad may easily become torn or damaged as the chairs are folded and stacked. Therefore, it is a general object of this invention to provide such a pad which can be readily installed or replaced on a chair backrest.

SUMMARY OF THE INVENTION In accordance with the invention, my backrest pad comprises an envelope of a flexible, decorative upholstery material, such as a vinyl plastic, which encloses a generally rectangular hardboard panel and a small sheet of padding material such as polyurethane foam constituting a cushion extending across said panel. The cover material extends outwardly from the upper and lower edges of the padding and panel to form flaps on the envelope which are used to fasten the pad to the backrest of the chair. The flaps are wrapped over the horizontal members of the backrest and joined together by any convenientmeans, such as snaps. Preferably, when the pad is applied to a chair, as shown in U.S. Pat. No. 3,199,915, the flaps are interwoven through the backrest slats in a manner which takes up any slack in the flaps, so that the pad is held securely in place and prevented from sliding sideways on the backrest.

The panel and padding are placed between two octagonal shaped sheets of the cover material and aligned so that the sides of the rectangular panel lie adjacent opposed sides of the octagonal sheets. The edges of said sheets are sealed, and thus the panel and padding are held in place and prevented from sliding about by the converging sealed edges of the sheets which extend to form the flaps.

BRIEF DESCRIPTION OF THE DRAWING The accompanying drawing illustrates the invention. In such drawing:

FIG. 1 is a perspective view of a folding chair having a backrest pad embodying the invention installed thereon;

FIG. 2 is an isometric view of the pad shown in FIG. 1; and

FIG. 3 is an enlarged sectional view taken along the line 3- 3 of FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The backrest pad shown in the drawing comprises a small sheet 12 of cushioning material and a rigid backup panel 16 held in a sealed envelope 14. The panel 16 is disposed against one face of the cushion 12 to support said pad within the envelope. A pair of flaps l8 and 20 project outwardly at the upper and lower edges of the envelope to provide means for fastening the pad to the backrest 22 of a chair 24. While the backrest 22 may take any form having openings to receive the flaps l8 and 20, the pad is particularly adapted to installation on a chair having a plurality of vertically spaced horizontal slats 26 connected between the upright members of the backrest 22. The flaps may then be interwoven through the slats 26 and fastened together by snaps 28 mounted on said flaps.

The envelope 14 is formed by a pair of identically shaped sheets 32 and 34 of upholstery material such as vinyl plastic. After the cushion 12 and panel 16 are placed between the vinyl sheets, the peripheral edges of the sheets are sealed, as at 35. The sheets 32 and 34 are octagonal in shape and have a transverse dimension only slightly larger than that of the cushion and panel. In this manner, the cushion and panel are prevented from slldrng transversely within the envelope when the sheets 32 and 34 are sealed. Further, with the lateral edges of the flaps 18 converging inwardly from the comers of the upper and lower edges of the cushion, the cushion and panel are prevented from sliding vertically within the envelope. In addition to being sealed about their periphery, sheets 32 and 34 are also sealed together at the positions which receive the snaps 28, as at 37, to strengthen the interconnections between said sheets and to securely hold the snaps in place.

The pad 10 is applied to the backrest 22 with the cushion oriented outwardly from the slats 26 and with the flaps l8 and 20 interwoven through said slats and pulled tight to take up any slack so that the pad is held securely in place. The hardboard panel 16 gives permanent shape to the pad and prevents it from becoming wrinkled and unsightly.

While the embodiment described herein comprises a pad having a vinyl cover and mounting flaps, said cover and flaps can be made of other materials such as sturdy textile fabrics. In the latter case, all of the sealed portions of the cover and flaps would, of course, be replaced by stitching.

I claim:

1. A pad for attachment to a chair backrest having a plurality of transversely extending slats, comprising a rigid panel, a cushion formed by a sheet of padding material, said panel and cushion having two pairs of opposed sides, a cover forming an envelope encapsulating said panel and cushion and formed from two sheets of octagon-shaped vinyl plastic having their peripheral edges sealed together, said vinyl sheets forming a pair of end flaps projecting outwardly from the opposed ends of said envelope, one pair of said opposed sides of said panel and cushion lying adjacent said end flaps with the edges of said flaps converging inwardly from the corners of said one pair of sides, and snaps attached to said flaps whereby said flaps may be wrapped around the slats of the chair and releasably joined together by said snaps to hold the pad on the chair, said vinyl sheets being sealed for reinforcement at said snaps.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US372763 *Aug 14, 1886Nov 8, 1887 Pillow
US1007985 *Aug 27, 1910Nov 7, 1911John SmithAdjustable cushion.
US2536157 *Aug 11, 1947Jan 2, 1951Campanelli Ted RFolding chair
US2587128 *Oct 12, 1948Feb 26, 1952Fred EullRemovable seat cover
US2815798 *Jan 31, 1955Dec 10, 1957Lohans Walter HBody supporting member
US2834970 *Aug 7, 1957May 20, 1958Nappe MoritzSealed pad
US2960152 *Dec 5, 1958Nov 15, 1960George M WendelBlocked furniture
US3000670 *Aug 26, 1957Sep 19, 1961Curtiss Wright CorpSeat construction
US3321241 *Jun 20, 1966May 23, 1967Froelich EdwardOrthopedic seat support
US3346298 *Oct 31, 1966Oct 10, 1967Howe Plasties & Chemical Co InSeat cushion
CA622579A *Jun 27, 1961Maximilian HellerChair back with cushion upholstery
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3742530 *Jun 16, 1971Jul 3, 1973M ClarkBedside rail cover
US3863980 *Jun 15, 1973Feb 4, 1975Elliot CinerGeriatric chair
US4164356 *Dec 19, 1977Aug 14, 1979Knight Richard GChair
US4215446 *Aug 28, 1978Aug 5, 1980Patsie MahoneyPadded hospital bed siderail cover
US4602819 *May 19, 1983Jul 29, 1986I.T.W. De FrancePart adapted to ensure comfort in a vehicle seat, especially an automotive vehicle seat
US5191663 *Jul 2, 1992Mar 9, 1993Hill-Rom Company, Inc.Hospital bed sideguard pads
US5433505 *Jun 14, 1994Jul 18, 1995Master Manufacturing Co.Adjustable seat and back cushion
US6155637 *Nov 9, 1999Dec 5, 2000Waters; AbbySlipcover for glider rockers
US6305750May 12, 1999Oct 23, 2001Meco CorporationClamshell backrest components
US6615426Oct 13, 2000Sep 9, 2003Hill-Rom Services, Inc.Siderail pad for hospital bed
US6928673Jul 25, 2003Aug 16, 2005Hill-Rom Services, Inc.Siderail pad for hospital bed
US7073220Mar 26, 2004Jul 11, 2006Hill-Rom Services, Inc.Bed siderail having a latch
US7107636Mar 16, 2004Sep 19, 2006Hill-Rom Services, Inc.Gap filler for bed
US7328942May 8, 2006Feb 12, 2008Henry WuFolding chair
US7350324 *Aug 29, 2001Apr 1, 2008Henry WuFolding chair
US7934276May 3, 2011Hill-Rom Services, Inc.End panel for a patient-support apparatus
US8061771 *Jun 19, 2008Nov 22, 2011Roho, Inc.Supportive back overlay for wheelchair back
US8113581 *Sep 22, 2011Feb 14, 2012Roho, Inc.Supportive back overlay for wheelchair back
US8341778Jan 1, 2013Hill-Rom Services, Inc.Bed gap filler and footboard pad
US20020116846 *Aug 29, 2001Aug 29, 2002Henry WuFolding chair
US20060102262 *Nov 18, 2004May 18, 2006Robert RodriguesHeat protective coverings and method for use thereof
US20100078975 *Sep 30, 2008Apr 1, 2010Ming-Shiang KangStructure of a single-part elastic waist support
US20100194159 *Jun 19, 2008Aug 5, 2010Roho ,Inc.Supportive back overlay for wheelchair back
Classifications
U.S. Classification297/230.12, 297/219.1, 297/440.2
International ClassificationA47C7/42, A47C7/40
Cooperative ClassificationA47C7/42
European ClassificationA47C7/42
Legal Events
DateCodeEventDescription
Jun 24, 1983ASAssignment
Owner name: COSCO, INC.
Free format text: CHANGE OF NAME;ASSIGNOR:W.G.G. & COMPANY, INC.;REEL/FRAME:004149/0091
Effective date: 19830311
May 23, 1983ASAssignment
Owner name: W.G.G. & COMPANY, INC., 2525 STATE ST., COLUMBUS,
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:COSCO, INC.,;REEL/FRAME:004134/0949
Effective date: 19830310