US1915674A - Spring construction - Google Patents

Description

Patented .lune 27, 1933` i fnNlrED sT-Ares former'. (IROY`S. JONES, OF--V.ANDERSON,.INDINA,.ASSIGN;ORLTO fBARCBERJ-VIANUFAGTUING CO., OFVANDEBSON, INDIANA, 'A.CORPORATION l KKHsrnrivercf:kolvs'inucfrroiv y VAplzflicaton 'led January 16, 1932.v Serial No. -58`7,106.' n @This invention Irelates ytovfa-springt cushion ig. v is :a vieWsimilartoFig. land of a fconstruction suitable aforfseats of CeXWell #modified form of theinvention.

chairs, idavenportsyandz-also removable cush- Figxwis aview similar toand of the modi- K xionsrtforfzthefsame. i fication shown infFig-.Q butwitli'the springs 5 "Vheneveribands orstraps --arefemployed compressed. 1 l 'Y .55 forzanchoring thezy respective springsl 1n-l pre- F =ig.f'7l yis af view similar to Fig.: 6, the coils -determined position, thefaction of the springs fbeingsheiwn'compressedwand is of' thefmodi- :ian'dnba-nds-When-afload is'applie'dftothe-same, .ffication shownzin Fig. 4. l visft'o shiftfrelatively.or.iffanchored-@against :In Figll :of the drawing: there yis illustratniozwshiftingto squeakfand krereatefa-fnoise that veda plurality of so-called dou-ble conical coilzr'co is highly objectionable. Y Y 4 v`springs l0. These springs are A.positioned The presentinventionisintended'to'elim- .'sbstantially'parallel to eachother and eithve'inate'substantially.all noiseand to insure perfer' in l-a-butting or spacedrelation depending v'niainentgpositioningoffall coil springs. guponfv thefamount yof spacing desired between "T15 IHeretofore nushionsy have been chiefly recthe; coils. An open `coi1=.tvvisted 'Wire .i 11 is H65 Ltangularfinroutline. yIdVflienever anaarched' or fwoundfabout' eachI coil' 10 at the yupper and 5-curvedoutlineorside-Was required, the cushziovverfy coils fand-at diametricallynpposite dfi-on manufacturer hasbeen compelled. to jpad -..pointsA of yeach of said coils. Each of the -1 thecush.ion basevat-,certainf portions/tofobr l'four open -coill'tvvisted Wires 11 extend-from I "latain the enlargement or-,-curvatnre desired fone. coil to the' nextadjacent coil, forming aio The present invention also is intendedto line of coils in tandemrelation andthe numquirement y of 1 this. additionaloutline rformber thereof .risk that: desired/'or` yrequiredffand zingipad'ding. f y l f the spacing/ithereofisthat desired `or Vre- :Thefpres nt-invention-alsofis intended to quired.

rdifferentilengthsvmaybe rigidly associated .and isfforcedlongitudinally androtatively ',-togetherefto yforman'base vconstruction"fora awayfrom; the coil forming -d-evicefan'd the completed'cushionandA in'Which. the spring 'Ifreeend is applied tozthe coil l0. Thefwire A AWA'portion-.ofthe ha'sersubstantiallyfconforms 'ini-itsmotative.movementisrthreadedfxalong `t'30f'tothedesiredi'outline-ofthe completedcushthe spring .and after. the Vfree end clearstheuso lzii-0n. f l i c0il,=.a'1see0nd coil is presented to the free end ,The Lfull naturewofa the 'invention-WML be `rat: theproperspaceor distanceand itis simn A-ainderstood from ftheaccompanying; drawing Vl ilarlyfseeured Vto the wire. `The desired numa'n'd' the" following descriptionwand `claim ber of coils inthe desired spaced relation-are i 35 In the drawing, Fig. l is a top plan` view of similarly anchored, whereupon 4the open coil 85 ffafcushionfba-sefformed:from a plurality of -'twisted-Wire.istsevered v y n cushion:units-:threeends ofwvhichfare'vsb- 'The coilfwires areextended'and preferably fstantially"straightxandethentherof-vvhich foverlap-'attheends of theispringxunityas is arcuate or curvedgfaiipartff the fabric enshown'inFignSyand in t-he left'han-dportion fv40--cl0singathesprings-:of the cushion units be- IofFigvl. 11n place of fourwires f open coilleO removed for i illustrating `ini detail the twisted typeyonlytWo Wires need beemployed .ssamenand othergparts. f an'din that event; one end coil will befatfleast .Fig.f2'isanvenlargedtransverse-sectional 'halfwvayfencircled,` and there Will only be a fvievv through'one-portion of the cushionunit single overlap indicated at l2 for each of 45: of the unitbase, COilSbeingeXteHded. the wires, While Fig. 3 shows fourffoverlaps 95 5er being extended.

" ?Ffig.3'isa.perspective\vievv of-thefspring 'forthe' four-Wires. ABy the WOICl fOVelllPva unit5'the; fabriczcover being omitted. itis intended tofconvey the meaning that the fFi'g-L is a'vievv'similartoY vievvl 2 and yofl a open coil: twisted 'Wire ends yare Woundjto modified fermfo'f the invention, the coils-also ge/ther. y'The resultant constructionisaspring f @unitginzwhich the: coils desired are secured .100

i" l. to the together in substantial tandem alignment and in the desired spaced relation and such s acingneed not be uniform or identical. en complete there results a unitary spring strucv ture of coils and coiled wires.

A strip of juteor wgun'ny sack likematerial usedin the upholstery industry isindicated at 13 and includes a longitudinal seam as atl 1'5 widthfofthe coil l0 together withfthe wires 11 'determines V `the width ofV the cushion? i unit. The units may be made'i'n any length1,width i i andidepth..y `Theendsof` the. cocoons`oripock-- =etsare then'closed by@ sewing, as at 15;?

.20 f'When a' squarey cushion is to beV made, the

desired numberfof units of identical. length `arelpositioned Aside by side, asind-ic'atedvin alcushion base havinglacurved outline at' one 215` end is desired, 1a i suitablegnum'berfof cushion 'units lare placed-side Vby side, said units being y of different lengths, as shown/in Figsil and 5.

1.1Inr Fig.1,'the dierencefin lengthin eachunit j is obtained byadditional spacing between the 80 coils 10 in eachspring unit, while in Fig.`,5,

" [the additional length is obtainedyfinone instance, by additional spacing betweenfthe coils inthe spring unitandy in @another instance is shown fbyadditional coils in thezspringl unit.' 35.1

The'lcushion units are secured toget er by Cwirel, adaptedtoI be mounted inl a tool suchfas ay *pair offfpliers orba` horinger, and the two open vends 17 of the yon overlappingengagement, as .indicated y at "rigidly secure's'each of thecushioneunits yto 4outlineof the cushion: l1:

As shown in Fig. 5,' the first two `left hand cushion. units arefsecured together in sub-4. stantiall .the 'aforesaid manner, awhile the.-V

interme iate'orfrniddle cushion unitisseeured 'iv-55m the adjacentfunits by thecclips 16, 'some instances anchoring -coil tofcoil and in yother instances, anchoring 'the 'coililO of@ one :unit n open twisted lzwire lplvof'they adjacent "'lojf rWlexi it is not desiredtohavefeach cushion l VAunit vvseparate' from everyother cushion -unit Vfanti thenf subsequently j united thereto, l two Metri-psp! fabric,3`0 and 31,'of the desired-dif that there-is no noise y .i are `passed l40-through the-fabric 'and around the adjacent Wires 11 and aroiindsee Fig. 1-the portion 5 @ofthe coill() encircledby the' vwirell. The

ends :17 then are drawn inwardlyiny meeting 'it i 33, and are secured togetherintermediate the veach `of. the cocofonsvassumes asubstantially rectangular outline`uin cross section, see

While in Figs. land 3 the open twisted wires-11 are shown 1in overlapping relation,

Vit is to be understood that each wire may terminate short of overlapping relation without 'departing from the invention.

Gomparisonof Figs.6 and? with Figs. 2 and V4 respectively discloses that when the cushion isildepressed I:orf loaded, the coil springscollapseor are sufficiently compressed 'so thatlthe end coils would normallyen age each other. However, eachlside :wall o the -cocoon being relatively free bowsr inwardly uponf compressionfand lthe" fabric is inter- Y y 1 .posed in the 4coils between the upper and llow- Fig, 1and suitablyjsecuredtogether.v- When s er coils land these are thereby prevented from directly engaging eachother with: thel result, V `normallydncident to such engagement; Y v

' The aforesaid noise lis y'not only due axial Y 'contactlbut is chiefly dilegto lateraly contact because; thek respective` lcoils rub across each 'other when the cushion isloadedv by a `person sitting down thereon, in other words'normal 'use `does not secure axial engagement of the coils except in [exceptional instances.` `The aforesaid also illustrates why a separate side niture manufacturer to purchase spring units y the,y fabric' from fabric manufacturerathe' 'number ofl which is relatively limited, and

from which they have heretofore'purchased lthel'samefabricffor other purposes.4 Then each fupholsterer or `furniture manufacturer y y n y j onl re uires a cli krin `r tool and a suitable yfthe adjacent.cushionunit at'bothithe'top and. y q p ge fthe" bottom of saidfunits and therebyforms'v aicompleted cushion base of the desired finalA amount of'clipvwire which, as indicated, can

Froml thel foregoing,i.` itl will be `apparent ftphat, except forthe spring units, alllof` the #labor to form thecushionfbase lcan be readily performed'in the upholsteryplant.' The resultant construction offers every advantage 4and none ofthe disadvantages of the so-called unit cell upholstery construction, which conf `struction is onefwherein every coil springis f positioned in alittle housing. This unit cell constructionjisthewmost expensive ofv any now known. to produce, because each. spring coil must be handled separately and the aformationof a cushionbase requires intricate (sewing and positioning.' of' fabricpar'tstogether withy the main ysustaining or border wall foreach sideofeach springunit is em- ,100 a clip arrangement-whlch vconslsts of an open Y ploI-ed. ,.i..

- e" aforesaid invention. permitslthe `furwires, whereas with the present invention, no border wires are required, as the trade Commonly interprets -this construction.

The invention claimed is :--k i l@ In a spring construction, the combination of a plurality of-elongated spring units, two adjacent 'units being of dissimilar length, each of the two adjacent spring units Comprising a plurality of tandem positioned coil springs arranged in spaced relation, helix means at the top and bottom of eachl unit and tangential to the opposite sides of the end coils of each spring in the unit for permanently cone necting the same together as anindependent In witness whereof, I have hereuntov aixed' my signature.

ROY S. JONES.

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