US1931094A - Reenforced spring assembly for upholstery - Google Patents

Description

Oct. 17, 1933- 1 A SUEKOFF 1,931,094

REENFORCED SPRING ASSEMBLY FOR UPHOLSTERY Filed April 24, 1931 1111191113?" [0112514. Sue/{W Patented Oct. 1 7, I933; I I l I y 1; f

,umreo STATES PATENTTOFFICE 'REENFORCED SPRING ASSEMBLY or: g

r ,U noLs'rEnr' .Louis' A. s ekd rgwilmetteh 111., .assignor to Nachman.-Spring-Filled. Corporation, Chicago, IIL, a corp'oration of lllihoi s ,2 .I Application April 24,19s1.- sag No. 532,461 3 Claims. lollies- 17s) This invention relates to improvements in cushions, from persons disposing themselves upon spring assemblies for upholstery of the type thef front dge'portions thereof andy'either rewherein the springs of the structure are main maining so disposedor sliding. rearwardly; 'In' tained in predetermined relative positions by "both cases, the springs are apt to be crowded means of fabric webs secured to or engaged'with away from the front edge of the cushion. 80

the end coils of springs. 1 The use of border frames of wire secured to The main object of the present invention is to the peripheral edge portions of top and bottom provide means whereby the flexible top and botfabric walls has been resorted to as a means tom walls of spring assemblies of the type above for maintaining the said fabrics sufficiently taut l0 mentioned are yieldingly maintained substanto -prevent the said crowding, butf'to provide 65 tially taut, thus to prevent crowding together border frames possessing sufficient resistance to and overlapping of the end coils of the component bowing or distortion to produce this result has springs as hereinafter more fully explained. necessitated the use of very heavy. Wire which, In the accompanying drawing illustrating suitin turn, is objectionable in that it prevents the.

able embodiments of the invention: front edgeportions of the cushion from con-=70 Fig. 1 is alplan section of spring assembly conforming itself to the shape of the thighs reststructed in accordance with the invention. ing upon the same and, in the case of cushions Fig. 2 is a similar view-showing z'rmodified of width to accommodate more than one person, form of construction of the same. a very heavy occupant depresses the front rail,

Fig. 3 is afragmentary plan viewof the same of the border frame to deprive the adjacent, 00- 75 illustrating another'form of embodiment of the cupant of the support of the front edge portion invention. of the cushion. These border frames'also cause The invention herein illustrated is embodiedin the front edge portion of the cover fabric of the type of spring assemblies wherein the end the cushion to be subjected to undue wear.

coils of the springs 1, which are usually of the Hence, the. object of the present invention is 8O hour-glass type, are engaged in flat fabric pockets toflprovide very light and effective means for, f formed between two sheets of fabric secured tomaintaining the fabric top and bottom walls of gether by sets of parallel stitch-chains 2 and 3 cushions sufficiently taut to prevent the aforeextending transversely to each other to define subsaid crowding without subjecting the person or a0 stantially square areas of diameter substantially persons seated thereon to any discomfort and 85 The said end coils of the latter are inserted into be subjected to undue wear. the pockets formed between said fabric sheets To this end the invention consists in securthrough the openings 4. This type of structure ing to the fabrics engaged with the end coils is shown in various prior patents and reference isof the springs 1 and supported byfor support- 90 had'particularly to United States Patents Nos. ing the latter, resilient bow-spring members 5 1,755,713, 1,755,714 and 1,755,715,, all issued April .of relatively light gauge spring wire. As shown 22, 1930. r i r i in Fig. 1, the spring members, S may be plural In practice, the spring assemblies of the genand, as shown in Fig. 2, may consist of a singleeral class above-named, which includes other or unitary member 5 v specific types of construction than is herein shown The same members 5 or 5 as the casemay or is shown in the above-mentioned patents, are be, are secured to thefabrics aforesaid by stitchcovered with suitable padding material which is, ing 6 and 6 or any suitable equivalentjthereof, also disposed peripherally about, the same and which preferably penetratesthe fabric at points-' they are then crowded into the open end of a alongthe stitch-chains 2 and 3, respectively, in cover fabric which includes the usual top and bot.- structures of the specific type shown in" order tom. walls and boxing or peripheral walls. that said stitching 6 or .6? may not interfere In thus crowding the spring assembly and with the insertion of the end coils of the springs padding into the cover fabric, the springs 1 are in'the aforesaid fiat pockets. 50 crowded toward each other and frequently, into The members 5 and 5 may be generally jcleoverlapping relation to each other so that the fined as bow-spring members which will yield cover fabric is not fully distended laterally. to lateral pressures against cushion edges'andf Aside from the crowding above referred to durto load upon the cushions but will spring back ing manufacture of the cushions, this action reto normal condition. e i r 55 sults, to an appreciable extent, in the useof the Preferably these spring members 5 and 5 or equal to that of the end coils of the springs 1. without causing any part of the cover fabric to their equivalents, will'extend to points coincident with the outer edges of the marginal springs of the structure at points midway of the ends of the respective rows of said marginal springs,

the shape of the said spring members being varied to suit that of the cushion or certain areas there- I of, it being understood, of course, that a plurality of said spring members may be disposed throughout the length of a bench-cushion or the like.

The invention may be embodied in many different forms of spring members which may, as shown in Fig. 3, be composed-of crimped or corrugated spring wire '7 for greater elasticity, if

desired. p v I The said bow-spring members 5, 5*, or '7, as

the case may be, act upon-the central or body portion of a square or substantially square cushion, it being relatively unimportant to maintain of the top and bottom fabric sheets. Whilelthis is preferable'as well as most practical in the case of the specific type of structure'herein illustrated, it is, in cases of other types of fabric spring assemblies, necessary to secure the said 1 bow-spring members to the outer surfaces of the top and bottom fabrics. Inv such "instances,

the saidm'embers are covered by the padding material soth'at they cannot'be felt by occupants of the cushions.

I claim as my invention: 1. A spring assembly comprising top and bottom fabric walls, a group of upholstery, springs interposed between said topand bottom walls, fabricimeansassociated with said top and bottom walls and engaged with said springs and with said walls and constituting the sole means for maintaining the'springs of said group normally in predetermined relative positions, and flexible, resilient wire-means secured to one of the said walls and-extending, in part, to the front and, rear edgesthereof, and, in part, over springs of the group from front torear edgesthereof, for maintaining saidwall taut throughout the area bor- I dered by said means, the latter being'sufficiently resilient to prevent interference thereof with the normal load responsive action of the said springs of the said group over which said means extend.

2. A spring assembly comprising top and bottom fabric walls, a group of upholstery springs interposed between said top and bottom walls, fabric means associated with said top and bottom walls andengagedwith said springs and with said1wallsand constituting the sole means for maintaining the springs of said group normally inpre-determined relative positions and flexible,

resilient arcuate wire means secured to one of the said fabric walls and extending in part, to the front and rear edges thereof, and in part, over springs of the group from front to rear edges thereof, for maintaining said walls taut throughout the area bordered by said means, the latter being sufiiciently resilient to'prevent interference i thereof with the normal loadresponsive action of the said springs of said group over which said means extend. f o i 3. A spring assembly comprising top and bot.- tom fabric walls, a group of upholstery springs interposed between saidtop and bottom walls, fabric means associated with said'top and bottom walls and engaged with said springs and with said walls and. constituting the sole'means for maintaining the, springs of said group normally 1,

in pre-determ ned relative positions, and flexible resilient, substantially circular wire means secured to one of the said walls and extending in part, to the front and rear edges thereof, and, in

part, over springs of the'group from front to rear edges thereof for maintaining said wall taut throughout' the area bordered by said means, thelatter being sufficiently resilient to prevent interference thereof with the normal load responsive action of the said springs of said group over 12-) which saidcmeans extend.

LOUIS A. SUEKOFF.

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