US1963015A - Spring-cushion - Google Patents

Description

June 12, 1934. Q M BURTQN 1,963,015

, L Ovo/6.

Patented June 12, 1934 l v Y sPmNG ousrnoNv Oliver ,Burton,`Chrica.go, Ill., assigner to Burton-Dixie Corporation ration of Delawarel A Chicago, l Ill., av corpo- Application February 2, 1933, serial No. 654,837

` 2 claims. (oils- 230) My invention pertains to features of novelty and advantage in spring-cushions and'similar` resilient structures, and relates more particularly, but not exclusively, to the'manufacture 5 of bed-springs' and the like.

Among the objects of the invention may be' mentioned the production of the improved constructions at a comparatively'small cost, the provision of al resilient cushion composed of l0 upright spiral-springs covered by, and suitably attached to, a woven-wire fabric, the supplying of a spring-cushion constructed to distribute the load imposed thereon in a suitable and efficient manner, the making of a bed-spring in which the spaces between the top-'coils of the erect spiral-,springs are well covered with the woven fabric so thatr the bed-spring as a -whole is particularly well adapted and tted for supporting a mattress incorporating an inner spring-assembly; and theinvention also includes the new cushion or bed-spring wherein 'the top fabric thereof is properly stretched or'sti'ained by attachment to the borderiwire and `is also suitably joined to the underlying spiralsprings.`

In order to enable those acquainted with or trained in this art to understand the invention and its various advantages fully, in the 'accomf panying drawing, which is a fragmentary plan View of a corner portion only ofthe improved bed-spring, I have illustrated the present, preferred embodiment of the invention, and this drawing will suflice not only to depict the bedspring itself but also its mode of production.

It is to be understood that all parts of the spring-cushion or bed-spring are substantially like that portion shown in the drawing, and such fragment will be sufcient for a full comprehension of the entire construction.

In making such a bed-spring or spring- 40 cushion, a woven-wire fabric 11, which may be of4 any usual or suitable structure, has its selvedge edges enclosing lengthwise and crosswise rods or wires 12 and 13, respectively, which in effect unitedly or conjointly form a border frame.

An appropriate number of vertically-disposed spiralsprings 14, 14, arranged in the same horizontal plane, are mounted in any approved or usual manner at their lower ends on a supporting-frame, not shown, and the top coils or upper convolutions of the marginal springs of such series are secured to a bent border wire or bar l5 by means of securing wires 17 and 18 extended lengthwise and transversely of the structure, respectively.

Such erect spiral-springs are in substantially the same horizontal plane and are'preferably arranged in rows with the springs in'p'roximatev rows in alignment transversely to the rows'for in staggered relation, as may be preferred, and as is very common in bed-springs in general.

Each such fastening or binding wir'efis ap,- propriately bent or crimped at 22, 2 2I aroundl the top coil of each spiral-spring and around the adjacent border-wire 15 to securely fasten them together. y r 65 As is clearly illustrated, each such bent portion 22 of the wire 17 ror 18, as the' case may be,A extends v,over the top convolution of the spiral-spring and is then.v Wrapped more or less around the associated'border o'r'marginal wire.`

In manufacturing the construction, the Wovenwire fabric and its marginal or fraineywires' 12 and 13 are positioned over and restingupon the top coils of the erect spiral- springs 14,14 and thereupon the woven-,Wire fabric is stretched both lengthwise and crosswise the s'tru'ctureand held in that relation, bymeans of wire-clips or ties 21, 21 located between the 4adjacent marginal upright spiral-springs and hooked' over the border-'wire 15 andthe marginal wires 12 and 13.

At the corners of the spring-structure, `the ends of wires 12 and' 1.3 are bent over the rounded corner-portion of the border-Wirey 15 at 20, 20 which connection, .as will be readi1y` understood, assists in holding the fabric in the appropriate taut condition.

With the woven-wire fabric thus stretched horizontally in position, helical or spiral wires 22, 22, 22 are fed crosswise the'structure while rotating about their own axes, and the wires 22 are so positioned or located as to interlock with the wires of the woven fabric and withthe top coils of the erect spiral-springs, all as is clearly shown, the top convolution of each such erect spring being fastened at diametrically opposite points to the fabric by two such wires 22, 22.

It will be noted that several convolutions of these reenforcing and fastening wires 22 interlock with each top coil, the result being that the fabric and underlying upright springs are secured together in a manner to provide a structure wherein these various cooperating resilient elements are properly correlated or combined together so that they can best unitedly perform their conjoint functions, and it is to be observed further that those portions of the wire 22 between the upright springs act to re-` enforce and strengthen the Woven-wire fabric at such points.

It will be observed that as is usual the wovenwire fabric is composed ,of practically-parallel, interwoven or interlaced coiled or zigzag wires and that the helical or coiled tie-wires 22 extend directly across the fabric wires with which they are interlocked'or intertwined as well as with the. upper terminal coils or rings of the erect spiral-springs. The result is that each spiralspring by means of the crossconnecting wires 22 is united with all of the wires forming the fabric. Thus all of the .parts of the structure are so joined together as to unitedly and conjointly cooperate and function together, whereporting action but with the obvious resulting economy.

So far as is known, it is new-to stretch such a woven-wire fabric in lts own plane in directions at right angles to one another and while maintaining it thus taut to interlock or secure it with the upright springs below, and it is further believed to be novel to employ the marginal or frame wires of the fabric to obtain such stretching action by fastening them to the border-wire of the erect springs.

The exact manner of practising this invention and the details of the construction may be changedvor modified within substantial degree without departure from the heart of the invention as defined by the appended claims and without'the loss or sacrifice of any of the material or substantial benefits and advantages accruing from the employment of the invention.

For example, instead of having the'wires 17 and 18 extend over the top coils of the upright springs, they may be located below such coils and the exact manner of securing such wires to theV border-wire may be Varied more or less.

plurality of suitably-supported upright spiralsprings having their top coils in substantially the same plane, a border-frame around the marginal ones of said spiral-springs and in practically theplane of such `top coils of said spiralsprings, a woven-wire fabric overlying the top coils of said spiral-springs and composed of intercoiled helical wires all extending in the same general direction, helical tie-Wires extend- .ing crosswise the lengthwise dimension of the wires forming said fabric and intercoiled with and securing together the top coils of said spiral-springs and said fabric and strengthening said fabric between said springs, means reenforcing the lengthwise and crosswise edges of said fabric, and means fastening the side and end portions of said border-frame to the outer portions of the top coils of said marginal ones of said spiral-springs and the reenforced edges of said fabric and holding said fabric stretched in its own plane.

2. In a spring-cushion, the combination of a plurality of suitably-,supported upright spiralsprings having their top coils in substantially the same plane, a border-frame around the Imarginal Aones of said spiral-springs, means fastening the outer portions of the top-coils yof saidA marginal spiral-springs to the corresponding side and end portions of said border-frame, a woven-wire fabric overlying the top coils of said spiral-springs, reenforcing means for and alongY the edges of said fabric, means other than said fastening means securing said fabric-reenforcing meansv to the corresponding side and end portions of said border-frame and holding said fabric stretched vin its own plane, and helical wires extended across the lengthwise dimension of the wires forming said fabric and interlocked with and securing the top coils of said spiral-springs and said fabric together and acting to reenforce the fabric between said spiral-springs, said reenforcing means comprising substantially straight wires in the marginal edges of said fabric and with their ends bent over theouter side of saidborder-frame at the corners of the cushion.

OLIVER M. BURTON.

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