US2125621A - Padded spring-cushion - Google Patents

Description

o. M. BURTON '2,125,621-

PADDED SPRING CUSHION Aug.` 2, 1.938.

Filed April s, 1956 1o in such a Way that no ,45 `has been illustrated in Patented Aug. 2, (193s Pannen SPRING-cushion Gliver M. Burton, Chicago, Ill., assignor to Burton-Dixie Corporation, Chicago, Ill., a corporation of Delaware *Application April 3, 1936, serial No. 72,575

'4 Claims.

My invention` relates to padded cushions, mattresses, and the like and pertains morepartic'ularly to Istructures .of that character which incorporate spring-units or spring-assemblies. the padding overlying the ends of the springs of the assembly which are appropriately secured together. to form the encased spring structure.

An aim of the invention is to provide a springassembly paddedwith sisal and cotton-batting textile fabric is required to be placed over the assembly surface under the padding, to unite the sisal and cotton in a manner to obtain the maximum advantage of the propv erties of'each, to preventv the sisal from cupping l5 down into the end coils of the springs of the assembly,` to reduce the noise ofthe padding on the spring-unit while the cushion is in service, to supply a structure oi this type which is economical to produce and hence which can be sold at a moderate figure, to provide a padded cushion which 'satisfactorily retains its resilient and elastic properties over a long period, to make a cushion of this character which embodies few parts easily assembled at small cost, etc.

Heretofore it hasy been customary tov use -both sisal and cotton-batting for the padding, and in some instances the sisal has been ,stitched to a fabric-backing, whereas in other cases the sisal has been applied directly to the surface of the y spring-assembly without intervening fabric.

My improved gmstruction diiersffrom all of those of the priorI art and-v it possesses certain distinct a vantages in that @it embodies no fabric aside fr m'the exterior cover or tick, it uses no more sisal or cotton-batting than has heretofore been employed, and it provides a better construction throughout in that the sisal and cotton are united in a novel manner and the combined materials are employed in the cushion in a new rela- ,40 tion.

To permit those acquainted with this art to fully understand the invention both from the features of construction and mode of operation, `a present preferred embodiment of the invention drawing which represents a fragmentary, vertical section through an inner-spring mattress.

Referring to this drawing, it will be noticed that the innermost or rst layer of cottonbatting Il, say, forexample, one-inch thickhas on top of 'it or outside of it Vand in direct'contact with it a layer of sisal I2 whose bres are more or less miscellaneously intermingled together 55 by reason of the fact that they extend in substanthe single figure of the tially all directions, this stratum, for instance,` being about two-inches in thickness.

These two layers, before application to the spring-assembly I3, are passed through a machine with' reciprocatory barbed or Vhooked needles, which needle the sisal vfibres `together in transverse rows at I4, ld, such intel-,lacing sisai fibres also being needled orv projected through the underlying cotton-batting layer at l5, t5.

Thus the sisal filaments are interwoven together along the cross-lines I4, I4 and they are also intertwined withthe cotton libres of the layer Il, hence interchaining or interlinklng the two Vlayers together to form a relatively-strong, combined, duplex construction.

When sisal in a spring-cushion bears directly on the surface of the spring-unit and a load is imposed thereon, the sisal-fibres slide more or less on one another and the sisal cups or bulges down somewhat into the open ends of the upright springs, and also whenl the cushion 'is in use the slipping or sliding of the sisal-fibres on the springs is likely to make an audible sound.

rihe duplex pad, however, .possesses the desirable quality that it `cups substantially less than sisal alone under the same conditions of service, the cotton-batting helping to hold the sisal-fibres in their original relations and assisting yin pre- A,venting their objectionable displacement or movement relatively to one another and to the springassembly, and, for this reason, the cotton is interlaced to the sisal in the manner stated and is interposed between the latter and the face of the spring-unit.

The specified rows of the sisal-libres entangled and interwoven with one another and with the "fibres of the cotton-battingv contribute to this 'desirable end, and the ends of the surface sisalbres also become somewhat embedded in the adjacent face of the cotton-batting with resulting, desirable, minor interengagement.

The two layers having been thus needled together with the stated beneficial results, the

' duplex ordouble layer is applied to the springunit with its cotton-batting in direct contact with the springs, and, thereupon, another preferablythicker, layer of padding ting, curled hair or any other suitablematerial, is laid on the sisal and the fabric casing, cover, or tick l1 is applied over the whole ln a. manner well understood in the art; this outer or third layer of padding or course deslrably, but not necessarily, being about three-inches thick, that is, equalling the combined thicknesses of the other two layers.

IG, such as cotton-baton the springs is avoided.

the springs, which assures that under all circumstances at least one such row will extend across the open terminal coil of each spring, these rows of intertangled ibres assisting the otherstructural features of the construction to reduce the cupping effect referred to by reason of their reinforcement of the innermost cotton-stratum.

Although the drawing shows a cushion or mattress padded on both sides, it is to be understood that the invention applies equally well to springcushions padded only on one side. '25

It follows from an understanding of the invention as defined by the appended claims and of the structure illustrated and described that various minor changes may be incorporated in the cushion without departure from the heart and essence of the invention and without the sacrifice of lany of its material benets.

I claim:

1. In a padded spring-cushion, the combination of a spring-assembly, a first cotton-batting cushion layer bearing directly on said assembly, a second sisal cushion layer outside of and bearing on said irst layer, a third resilient padding layer outside of and bearing on said second layer, said second sisal layer having certain of its bres needled through and interlaced in spaced rows with thev fibres of said rst and second layers, and a cover for the padded spring-assembly.

2. The structure presented in' claim 1 in which said rows of interlacing sisal-fibres are spaced apart a distance less than the diameter of the ends of the springs of the assembly, whereby at least onesuch row of interlacing libres will be in register-with the end of each spring.

3. The structure presented in claim 1 in which said third layer is padding of a thickness greater than that of said rst layer.

4. The structure presented in claim 1 in which said third layer is of cotton-batting of a thickness greater than that of said first layer and in which said rows of interlacing sisal-fibres are spaced apart a distance less than the diameter of the ends of the springs of the assembly, whereby at least one such row of interlacing fibres will be ln register with the end of each spring.

OLIVER M. BURTON.

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