US2296559A - Spring edge mattress or cushion - Google Patents

Description

l ;ORN EY l A. KRAKAUER SPRING EDGE MATTRESS on CUSHION Sept. 22, i942.

l N VE NO R am ffm/rayer Abr-ggz Filed June 27, 1938 Patented Sept. 22, 1942 2,296,559 SPRING EDGE MATTRESS OR CUSHION Abraham Krakauer, Brooklyn, N. Y., Kay Manufacturing Corporation,

assignor to Brooklyn,

N. Y., a corporation of New York Application June 27, 1938, Serial No. 215,971

16 Claims.

This invention relates to mattresses and cushions, and particularly to the means for maintaining the side and end edge portions thereof against permanent distortion under the stresses of use. Mattresses and cushions, even when supplied with inner spring units, tend to become permanently deformed at the peripheral edge portions thereof because the springs of the unit cannot be arranged near enough to the side and end surfaces of the mattress or cushion to maintain the padding and covering at said surfaces in their proper initial positions, so that the padding tends to work its way inwardlyr toward the springs and thereby to remove the supporting effect thereof from said surfaces, and to permit the surfaces to collapse.

My invention therefore contemplates the provision of comparatively inexpensive extensible and compressible means for adequately reinforcing and stiening the end edge surfaces and side edge surfaces of the mattress or cushion regardless of whether or not padding is there employed, said means being readily attachable to the spring structure and being durable and effective.

My invention further contemplates the use of suitable Wire mesh fabric for the side and end Walls of a mattress or cushion, preferably in conjunction with an inner spring unit, to expand and contract with the corresponding lateral expansion and contraction of the mattress or cushion and thereby to maintain said walls in their proper sizes and shapes even after considerable use.

My invention further contemplates the provision of walls on a spring structure, formed of wire mesh fabric, and serving as a barrier against inward displacement of the padding arranged outside of said walls, if such padding is used, or serving alone and without covering as the sole side and end wall means.

The variousobjects of the invention will be clear from the description which follows and from the drawing, in which,

Fig. 1 is an elevation partly in section of one form of a cushion or mattress to'which my invention has been applied and wherein no side padding is employed.

Fig. 2 is a fragmentary vertical section of'a modified form of the same in which side padding is used.

Fig. 3 is a similar view of another modified form of the same wherein the reinforcing metallic fabricl at the side and end surfaces is held between two layers of padding.V

Fig. 4 is a similar View of a modified form of the same wherein the metallic reinforcing fabric is bent around the roll edge of the cushion or mattress, and is used as the upright wall without 'any padding.

Fig. 5 is a similar view of another modified form of the same wherein the metallic fabric is held to the springs by suitable clips or rings at intervals.

Fig. 6 is a perspective View partly broken away of a cushion or mattress similar to that shown in Fig. 4 wherein the covering of the side and end edge surfaces is omitted. l In the practical embodiment of my invention which I have shown by way of example,v the metallic fabric or Wire mesh- I0 is arranged in upright position at the side and end edges of the structure and between the upper and lower surfaces thereof. Said fabric is Wovenin strip form of suitable thin springy wires Il, the individual wires being arranged in sinuous lform throughout the fabric with the crest 2 and the troughs 3 of the sinuous curves arranged at the edges of the strip and forming a selvage. The width of the metallic strip I0 is preferably substantially equal to the thickness of the spring structure, though it will be understood that the strip may be compressed or expanded, if necessary, to the required` width, said strip being readily compressible and expansible transversely. The metallic strip IIL' ,when compressed, tends to bulge outwardly thereby maintaining the properflat or convex edge on the spring structure instead of the concave edges or surfaces ultimately produced in an ordinary mattress structure after repeated compression thereof. The strip IU may be used with or without padding and with or without a covering therefor, as will hereinafter appear.

In the form of the mattress the usual coil springs I2 are secured together in rows by means ofthe helical springs I3, I4, I5 and 2| customarily used Afor'that purpose to produce an inner spring unit. The unit is shown as covered by the padding I6 on its upper surface and the padding I'I at its under surface, the

whole being enclosed in the casing IB at the corners of which is secured the rolledging I9, 20. The metallic mesh or wire fabric I0 is arranged between the upper and lower helical springs I3 and 2 I that is, between the top and-bottom of the spring structure in substantially upright position and is held in place by the helicals.

Preferably, the upper and lower edges of the mesh are secured in place at the same time that the coil springs are secured together by said shown in Fig. l,

springs. 'I'he mesh being bendable, it may readily be bent at the corners of the mattress to form the end edge surface 22 forming a continuationV of and at substantially rightV anglesto the side` edge surface`,`

As shown in Fig. 1, the padding at the sides, of

the mattress may be omitted andthe casing I8 l, K

arranged directly outside of andin face-to-face relation to the mesh. If desired, the mesh may additionally be held to the casing by suitable Ventilating eyelets 23 of the usual type passing through'the casing and the mesh.

When the mattress is compressed, the mesh II) is also compressed, the indi-vidualvviresy thereof assuming a more flattened form and partly closing the interstices 24 therebetween. When the mattress is released from itscompressive stress, the coil springs I2-return the mattress to its original expanded and unstressed form and expand the mesh I 0 to its initial position. Said mesh I0, 22, suitably stiifens -andenforces the sideand end edges of the mattress and sufficientlyH resists inward pressure thereon to prevent objectionablefconcavity of said end and side edges, and also serves to maintain the mattress for a long time and even under long use in its proper form particularly at the side and end edges thereof, thereby avoiding the objection to edge padding which tends to move inwardly andato,-

permit said side and end edges to become concave. As shown in Fig. 2, the separate roll edging I9, may be omitted, and suitable padding as 25 inserted between the casing IB and the meshl I0,

22. If desired, the padding 32 may be arranged around the marginal'helicals I 4 and I5 toy form a suitable roll edge, though it will be understood that the roll edge may be entirely omitted, if d esired. The eyelet 23 serves to secure the mesh, padding and casing together and permits the circulation of air through the interior of the mattress. y

As illustrated in Fig.Y 3, instead of arranging the mesh at the inner surface of the padding, said mesh may be prearranged between twolayers as 21, 28 of the padding and stitched to the padding by suitable stitching then be finished in the usual manner, additional stitching as 30, 3| being employed, if desired, to secure the padding and the mesh at its edges to the casing.

As shown in Figs. 4 and 6, the greater part of the wire mesh comprising the side and end edge `surfaces of the mattress may be left uncovered,

unpadded and exposed, the padding being confined to the top and bottom surfaces ofthe mattress and to the corners thereof, regardless' of the manner in which said mesh is secured to the inner spring unit of the mattress. In said Fig. 4, however, I have shown a modified form of the meansfor attaching the mesh in place. In'this formV of the invention, the upper edge portion 33 of the mesh is bentaround a core 34 of suitableY material such as twistedpaper roll edging, the bent-over portion being secured to the bodylpor- 29. The mattress may tion of the mesh by suitable means such as the clips or staples 35. The padding 36 is arranged at the top and bottom of the spring structure. The casing 38 covers the padding and the bent portion 33 of the wire mesh and extends partly down the side and end edges as at 3l. Said casing 38 is suitably stitched in place to the wire mesh around its preferably doubled back peripheral edge, as at 39. The bottom surface of the mattress is similarly completed thereby leaving the larger portion 40 of the Wire mesh exposed and uncovered. In this form of my invention, the interior of the mattress is Visible through the upright mesh walls 40 and the entire interior is readilyventilated.through the interstices of said mesh. The round wire of the mesh being free fromany rprotuberances or projections cannot catch upon any sheeting or other material customarily used Yfor covering the mattress when in use but provides a sanitary and well ventilated mattress of economical construction, dispensing with the necessity for Ventilating eyelets, but permitting the use of the customary straps Iiik for turning the mattress.

In that form of the invention shown in Fig.V 5,Vv the wire mesh I0 is secured in an vecronomial manner at itsupper and lower edges to theend coils of the springs I2 andby the so-called wire hog rings 4I o'r other suitable fasteningrmeansY arranged at spaced` intervals, the helicalsbeing thereby dispensedvwith.

It will be understoodV from the above that` the wire mesh may be conveniently secured toN any of the usual formsof inner spring units customf arily used for mattresses and cushionsrtoiorrn resilient protecting and/reinforcingY edge andend surfaces thereof. It will furth'erbe understood that any of the means customarilyemployedfor holding the partsof a spring structuretogether such as rings, clips, helical springs oreven stitch,- ing may be used for securing the upper and lower, edges of the wire mesh vin` place, and finally it will be understood thatthe wire mesh may be covered or uncovered, or'paddedor unpaddemas may be found desirable for which the mattress isv designed.

While I have shown and v described certain specific embodimentsfof my invention, Ido notv wish to be understoodasrlimitingwmyself thereto, but intend to claimY theinvention as broadly as may be permitted by the stateof the prior art and the scope of the appendedclaims.

I claim: y e

1. In a spring structure provided with a ,seriesV of coilsprings having enlargedend coils,and,with metallic means for securing" the endcoils Aof the springs in place in the structure, side and endwalls on the structure comprisinga striprof woven wire mesh fabricY having ya'widthof substantially the height of the structure 'arideqnsistingler a plurality of resilient interwoven wires'l ,each having' spaeedreunded bende therein at the edges. @fluire strip said wires being substantially. straightb'el tween the adjacent bends thereof, and meansA se: curing the rounded bends of thestrip to Vthe peripheral edges of the struQtUle, Said means passing through the strip.

2. In a cushion or mattress, aspringstructure comprising a series of coil springs, helical'spring's joining the end coils of the c oil springs, side and end walls on the structure including a metallic strip of Ytransversely compressible and extensible fabric having comparativjely.y wide interstices therein and comprising comparatively thinY sinu-Y ous interwoven wires, means including said helical for'the special purposes springs securing marginal portions of the strip in upright position in the structure, padding on the upper and lower faces of the structure and covering material for said padding.V

3. In a cushion or mattress, a spring structure comprising a series of coil springs, helical springs joining the end coils of the coil springs, side and end walls on the structure including a metallic strip of transversely compressible and extensible fabric having interstices therein and consisting of interwoven sinuous wires, the marginal portions of the strip being secured in upright position in the structure to said helical springs, padding at the upper and lower faces of the structure and covering material on said padding, the peripheral edges of said covering extending past the corner edges of the structure and terminating adjacent the edge portions of said strip to exl pose the greater part of the strip.

4. In an inner spring unit, upright coil springs, substantially upright side and end walls on the unit arranged outwardly of said springs and comprising transversely extensible and compressible metallic interwoven wire mesh, the wires of said mesh being comparatively thin and comparatively widely spaced apart and having rounded bends forming a selvage at the edges of the strip, and means securing said mesh in place in the unit to compress the mesh on the compression of the springs and to extend the mesh on the release of the springs, said means passing through the mesh at said bends and being connected to edge portions of the unit adjacent the bends.

5. In a mattress, an inner spring unit, padding at the top of the unit, similar padding at the bottom of the unit, a covering over each of the paddings, and exposed side and end surfaces on the mattress comprising wire mesh secured to the unit and to the coverings and compressible and expansible with the springs of the unit, the top padding covering terminating at the side and end surfaces above the middle of said surfaces and the bottom padding covering terminating below the middle of said surfaces.

6. In an inner spring unit insertable as a whole into a cushion casing, upright coil springs, mettalic means for securing said springs in place in the unit, protective compressible and extensible walls at the sides and ends of the unit comprising substantially upright metallic fabric of interwoven sinuous wires, and means engaging the upper and lower edges of the fabric at spaced intervals for securing said metallic fabric to adjacent parts of the unit.

7. In an inner spring unit, upright coil springs, compressible and extensible side and end walls comprising substantially upright metallic fabric of interwoven sinuous wires, and helical springs passing through the edge portions of the fabric and around end coils of the upright springs.

8. In a spring structure forming the inner spring unit of a cushion or mattress, a marginal wall comprising a strip of wire mesh fabric consisting solely of interwoven resilient wires of sinuous form extending between the edges of the strip and between the upper and lower corner edges of the structure, and fastening means passing through the edges of the trip and through adjacent portions of the structureA to constrain the strip to be reduced in width on the compression of the structure and to expand in width on the release of the structure from compressive stress, said strip protecting the unit from the entrance thereinto through said wall of substantial quantities of extraneous matter and maintaining the marginal wail of the unit in' its initial shape and size and against inward displacement.u

9. A mattress comprising an inner springl unit including a series of coil springs having enlarged end coils, top and bottom padding on the unit, a cover on the padding, a continuous strip of metallic interwoven wire mesh fabric of a height substantially that of the unit and forming at least a part of the side walls and end walls of the mattress, and means passing through and securing the upper and lower longitudinal edge portions of the strip to adjacent parts of the mattress.

10. A mattress comprising an inner spring unit including coil springs having enlarged end coils, foraminous edge and end walls in said mattress substantially enclosing the edges and ends of said unit'and comprising a continuous strip of.' metallic mesh consisting solely of a plurality of thin wires of the same diameter and material`,

yeach of said wires extending in sinuous form.`

throughout the width of the strip at an angle of.' approximately 45, said wires crossing to form... substantially square interstices between adjaQent., wires of such dimensions as toV permit relative.; movement of the wires through substantial dis-A tances suflicient to take up normal compression. of the spring unit under the stresses of use, and'. means passing through the upper and lower edges... of the strip and adjacent parts of the mattress; for securing the strip in upright position in the, mattress.

11. In a padded spring structure, a series of.'

A coil springs arranged in rows and each having;v

end coils of greater diameter than the intermecli. ate coils thereof, padding means covering said*A end coils and extending around the side walls. and end walls of the structure and covering at. least the peripheral edge portions of said sidev walls and end walls and including padding material and covering material, a strip of metallicwire fabric arranged at the end walls and side l walls of the structure inside of said covering material and spaced outwardly from the intermediate coils ofthe marginal springs 'a greater distance than the spacing thereof from the end coils of said springs, and means passing through the wire fabric and through the covering material securing said material to said fabric and maintaining said material and fabric in place in the structure.

12. In a padded spring structure, a series of coil springs each having end coils of greater diameter than the intermediate coils thereof, said springs being arranged in rows, padding means covering said end coils and substantially enclosing the springs and including padding material and covering material, and means arranged at the side and end walls of the structure and extending between the end coils and spaced outwardly from the intermediate coils of marginal springs of the structure a greater distance than the spacing thereof from said end coils for preventing permanent collapse and distortion of the end walls and side walls of the structure, said means comprising a foraminous strip of metallic wire mesh, saidl marginal springs normally stretching said mesh laterally, and means passing through the edge portions of the mesh and connected to adjacent portions of the spring structure and securing the mesh in substantially upright position in the structure.

13. In a cushion or mattress structure, an inner member comprising a spring unit, padding on each horizontal face of the member, a covering member for the padding, side and end walls on the structure4 including la vsubstantially vertical..

strip of metallic Wireufrabridconsisting ofl inter Woven sinuous Wires Aspaced tovprovide interstices therebetween,v said coveringl member covering at least the edge portionsr of thefabric, and horizontally arranged fastening meansvrpassing through the'Y edge` portions of the fabric .and through at least onenof said members and securingftbe fabric to adjacent portions 4of the mem.`V

ber.

14. In a cushion or mattress structure, an inner member comprising a plurality ,of coil `springs each having end coils of greater ,diameter than,

the intermediate coils thereof, side and endwalls on the structure including a strip Yof metallic:y

Wire mesh, a covering member on the inner member covering the end coils, said covering member Y ture each including a continuous strip ofwoven Wire. mesh, coextensive inlength and width vWith that of said Walls andhav-ing lateralfbends therein at the junctures of -said side Walls-With the endwalls, Aand means. vengaging the Y- upperA and-1ower edgesof thestrip and passingtherethrough and throughadjacent aparts ofthe structuretoV secure said edges, in placeA in thelstructure;

16. In a polygonal-spring lstructure forming-the inner spring Yunit ofa cushion .or mattresswa series of. upright coil springs Vand-upright marginal Walls resisting.deformation-of the -side and Y endedge surfaces-of said vunit' and including a continuous. transversely extensible. and comv-pressible strip of metallic'fabric secured at its edges tovthe end coils OLthemarginal springs,Y saidstrip having a lateralbendgtherein at each of the corners of .the structure, said strip-comV prising sinuous wireshaving edge bends forming eachY of the*` Wires passinga, selvage on the strip, completelyacross the strip at an angle of ap proximately 45, all of said Wires being` of the same diameterland material.

ABRAHAM -KRAKAUER.-

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