US1789154A - Spring mattress, etc. - Google Patents

Description

Jan. 13, 1931. v (OWEN 1,789,154 SPRING MATTRESS, E Tc Filed 001; 15, 1926 s Sheets-Sheet 1 all-F ElwEN MWM I Jan. 13, 1931. D. T. OWEN 1,189,154

SPRING MATTRESS, ETC

Filed Oct. 15, 1926 3 Sheets-Sheet 2 Jan. 13, 1931. I

' D. T. OWEN 0 1,789,154

SPRING MATTRESS; ETC

Filed on. 13, 1926 :s Sheets-Sheet s number 0 mined shape. a

springsare'also adapted to promote parallel in respect to. each other whenu'nderload'and compressed unequally. "These and other objects. are at i m using spiral'wirefisprlngshaving v as it appears before it is introducedintolsaid. casing, Fig.4 is a sectional view of the,

Patented Jan. 13, 1931 'mlvm "r. ownm or CLEVELAND,

Ionon'ro THE OWEN -'.AUTOIZ[ATIC 5mm ND, omo, A CORPORATION or oIrIo'."

mutat -med October is, 1956. Serial n 1411293.

"My invention relates toi'spring mattresses,

cushions and the'like, and in-g'eneral my .ob-

ject is to provide an "exceptionally i'soft and I; resilient s ring structure in wh ch a plural, f spiral springs are assembledjand" united in a particular way to peiniit fliinitjy of:action and also individualaction of the springs in'a large measure or degree. As constructed, the spring structure permits each spiral spring, where connected with another, to contract and. expand transversely; as well as longitudinally so that the complete spring structure may be placed u'fndertension within a liable or flexible covering or casing, there y stretching the coveringor cas ing smoothly "and uniformly in all directions and in this waymaintaining the mattress or cushion at all timesi-n its As. connected, the spiral instead of tilting movements tamed b open coi' s or .loops, and. ,by' connectingthe terminal rigidly'tothe end coil or loopof one or more adjacent sprin preferably by meansof. by indenting the clips and metal clips an wires, all substantially as herein shown'i and describedand more particularly pointedout in the claims.

Fig. 1 is -a sectional 'vlewof aspring mat tress or cushion embodying the. invention.

Fig. 2 is a plan viewof a vcovering or casing of textilematerial, and Fig. 3 is a plan view of my improved spring structure of com paratively larger dimensions than the casing casing, and Fig 5 aside elevation of the spring structure, showing the respective dimensions of said parts in a vert cal lane and as they appear before being assemb the sprlng wires rigidly together, andFig.

is a cross-section thereof. Fig. 8 is an edge view of the indented clipand I 9 a erspective view of the two indented wires witliout the clip.- Fig. 10 is a top view of and full lines, showingthe desired ,predeter-f portion of each open coiljor lo op in a full circle and to twist the end ed. Fig; 6 is a plan view of theclip for connecting.

wire, and Fig.

according tomy invention, andFi lill'is a side view of thesaid two, springs in. dotted 4 a parallel action of the sprnigswhen' onespring is depressed. Fig. 1 2%- is' a diagram illustra ingft-he tilting two, coiled s rings connectedrigidly'together action of two "coiled springs united together by a pivotal connection, Fig, 13" is a. plan view of .a..spring' 'structure constructed ac corclingflto my mvention, but-comprising af .lnod1fied arrangement in the j setting of the springs in rows, and, Fig. 141 a similar new of a varla-tionin the for. =r1gidf-connection' with each", other.

The resilient spring'wir'e structure. exempl fied 1n the drawings comprisesa plurality ofspiral .wire springs 2 arranged and connected together in parallel rows. Each spring has 'c'onvoliitions'or coils of graduated diameter widely spread-apart or extended, thereby v providing, a .resilient'fbodyf of conical. form haying alarge coil or loop 3 at one end in the case of a single cone and a second large coil or loops in "the? caseof spiral springs of hour glass shape; @Heretofore, the general practice has been to form the end coil or loop of the wire around the body: offtheysame wire at the beginning of the circle. or. loop where these parts meet, tus-. forming an.endless closed loop for the spiralsp'ring; [I am also aware that other meansthanitwisting the wire has been'resorted to in fastening: the end'of; the I wire. to the body t me; spring andito form a closed loop, but thepresent spiral spring differs from such known springs in that the end coil ,orloop-is left open, that is, the end or terminal portion 5 isnot fastened or con nected. to the body part of the same coil or loop but is'free to move for flex in every direction. In employing a, spring structureof this, P dded covering, Spiral p g of.

kindin a flexible casing or such as a cushion cover C, hour glasstshape is preferred and both end loops are left open.v terminal portion of each end loop is not wholly free in the spring structure as a whole, because eachterminal or end 5 is fastened or connectedto a body part of the outerloop of an adjacent spring. I use a rigid However, the end or setting ofthe'springs with a pivotal connection aside pull ,on one] is caused while the other is beingcompressed,

I one spring is compressed more'than the other. This distributes the load over wider areas.

thus handing and tilting one spring laterall and seeks to evade the loa spring assumes the main burden. But by fastening the 'free end of the top loop of one spring in a rigid manner to t e top loo of t e next spring neitherwire caniturn an load is transmitted hythe rigid connection from one to the other softhat both will be compressed on parallel lineseven-thou'gh' withthe resilientbenefit fromall thesprings within that area, without tilting the springs. The parallel movement of twosprings under u'miilual distribution of pressure isillustrated in llbydotted andfull lines, which 11' ure s ows one sprin erable extent and "t e other spring drawn down in lesser degree, but drawndown never theless a substantial distance, by the rigid connection between thetop loops; This gure shows'the top loop in the depressed spring lym in a horizontal lane andtheto loop of the other spring, rawn downwar 1' by the rigid connection until it lies in aninc 'ned plane, making it appear that thelwire or wires where unitedtogetherhy fastener F wires are. brought must turn or I rotate in order that' the parts f in that relation. But the ,lwires' y nd V do not turnwhere "fastened together; instead, a torsional strainf ortwlst takes place in the wireitself throughout theloop and as a result all the coils o rloops in. that s ring areacted upon and pressed' downwa'rd y on I a the union between the two-'wires where'the torsional stress" con-- parallel lines. Obviously,

ter's mustbe exceptionally strong, otherwise the wireswill turn in theirseats within fas- Ihave therefore devised a tening device 7 special form of metal the indenting or u necting wires a'ndt inFi gs. 6 to 9.";

fastener which'in'vol'ves setting of the two 0011- of' one open loop same plane and aflat iece 01'. st" of metal is wrapped around bot wiresun the opposite ends of this piece overlap'in'substantial degree. Suitabledies are then used to indent the metal fastener transversely thereof thus also indenting the two wires. A sharply defineddepression Gris formed in thetop surface of thefaste'ner which its counter part in the two Wires-,which are kinked or art of the end loop- We ged .ppen While the other the depressed to a. consi j also bepressed together'latera fastening is employed to prov de a e fastener as delineated I p 7' I' ment gives equal resiliency frome'achside of "Thus','in fastening the free end or terminal of one spring to'the ,wire I body or top lo'op'of another spring, the two closely together in the within the bends or ofisets which are also formed in the overlapping guts of the fuss tener. The overla ping en other, and by in entin both overlapping ends the fastener is ma e strong enoug to res'ji'st't e" twisting movements offthe wires and also strongenough to preventthe'oven lap d sends of the fastener from being under such twisting strains;

-,S ings such as described, may be assemble in several ways, all as exemplified in four paral el rows-of springs each spring in each row havin the-open side and terminal part of each top cop facing the same direction? The springs are rigidly connected such indented fasteners as hereinbed, because the terminal part together by before dose of each .toploop is free to playlin respect'to load-boa" ng' surface" of 'the entire spring the'othercoils or loops in the same spring the jstructure'isnot rigid hutma'y be freely com- Pre se p t or "sp distorting the open loops o springs'in any marked degree;

laces without be. s'tretohe sueh'spring's are rigidly connected ito her in the way herein descr bed, thus the adjacent v T or p I V laterally or contracted to a smaller diameter an the move- 'ment is cmnulatiye where a plural number of permitting reenforce each Figs. 3, 13i-and 14. Thus in Fig. 3,1 show I the spring structure be made of slight f larger dimensions than a covering or casing, say as exemplified in to' 5; Such a spring structure maylbe attened to thinner dimensions, as in t of o sembly, but the present mo rd yi 'pr structure may y and thereby placedfunder'tension sothat it spread transversely when 'confined-withinfa covering or casing of smaller'dimensions than .the'

normal size of said spring structure, thus stretching"the "goods and maintaining; the.

I cushion in its predetermined shape.

"In Fig. 13, the same spring andmode of portions row ave the open sides or termina K facingin a different direcof their top: loops tion than th QH -Bi eS or terminals of the; o mng'row; arrangemay be made of relativelysin'aller gauge wire than that used customarily for sustaming the same loads, thereby asofter and more yieldable spring asaem but in that the;

this connection it must be 'und'e extremely important advantage sad. ing in the present invention is that'the springs lars ring structure, but the sprin' "in one use of such smaller gauge wire would not give satisfactory results unless the springs are united rigidly as herein described so, as to utilize the torsibility of the wire in each spring in distributing and carrying the load to other springs. Thus in compressing one spring made of light gauge wire a twisting movement is imparted to the wire in the connected spring which tends to compress the second spring and thereby sup lement the resistance of the first spring, see ig. v11.

, What I claim is:

1. Aself-conta-ined sprin unit comprisin a plurality of helically cofied springs, eac springterminating in free flexing extremities, the extremities of each spring being rigidly connected to an adjoining spring, and each spring being formed of continuously curving spiral convolutions from one extremity to the other. 2. A self-contained sprin unit comprisin a plurality of helically coi ed springs, eac of the springs terminating in free flexing extremitles, and a clip rigidly connecting each of said extremities to an adjoining Y spring, each spring being formed of continuously curving spiral convolutions from one extremity to the other.

In testimony whereof I afiix my signature. DAVID T. GWEN.

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