US2305430A - Mattress, cushion, and the like - Google Patents

Description

Dec. 15, 1 942. M. KARPEN I-:rAL

I MATTRESS, CUSHION, AND THE LIKE Filed Aug. 19, 1939 3 Sheets-Sheet 1 Dec. 15,1942. M KARPEN ETAL 2,305,430

' MATTRESS, CUSHION, 'AND THE LIKE Filed A ug. 19, 1959 3 Sheets-Sheet 2 Dec. 15, 1942. M. KARPEN ETAL MATTRESS, CUSHION, AND THE LIKE Filed Aug.. 19, 1939 3 Sheets-Sheet 3 f7-2067222076.' ae/jfarperz Patented Dec. 15, 1942 MATTRESS, CUSHION, AND THE LIKE Michael Karpen, Los Angeles, and Harry Bows,

Huntington Park, Calif., assignors to S. Karpen & Bros., Chicago, Ill., a corporation of Illinois Application August 19, 1939, Serial No. 291,098

3 Claims.

This invention relates to a mattress, cushion, or the like.

An object of the invention is to provide a mattress or cushion in which porous rubber pads are employed in lconjunction with an inner spring core. A further object is to provide a locally resilient or yielding cushion in combination with a 4main spring core, yielding substantially as a unit and `providing a uniform base support for the locally resilient cushion. Other specic objects and advantages will appear as the specication proceeds.

The invention is illustrated in preferred embodiments by the accompanying drawings, in which- Figure 1 is a broken plan developed View of a portion of the mattress showing the parts thereof in broken away relation; Fig. 2, a transverse sectional View of a portion of the mattress, the

section being taken as indicated at line 2 of Fig. 1- 1; Fig. 3, a sectional View, similar to Fig. 2, of

a portion of cushion body embodying the invention; Fig. 4, a vertical sectional View of a portion of a modified form of mattress embodying my in; vention; and Fig. 5, a broken part sectional View of a portion of another modified form of mattress embodying my invention.

In the illustration given, Figs. l and 12, Ill .des-

Cil

ignates a spring mattress core formed by hourglass or spiral springs united at their tops and bottoms by spring helicals or other means. Since the spring structure is of Well known construction, it is believed unnecessary to describe the same in detail.

About the spring structure I0 is stretched a muslin strip II and about the muslin strip II is placed a sisal layer I2. About the sisal is a layer of cotton, kapok, or other suitable material I3. The muslin strip II is brought into overlapping relation on one side and secured together by fastening staples I 4 or by stitching.

We next take each foam rubber pad I'I, which is extremely flexible andv yielding, and draw it over the cotton layer I3, so that it lies uniformly thereon in a smooth and conforming position. Outer casings I8 are then drawn about the rubber pads il. Each rubber pad I'I is provided at each margin with a fabric strip I9 which is preferably -cemented to the rubber, and the folded edge 29 of the fabric strip is brought into alignment with a folded edge of the border I5 and With the taped end 2| of the outer casing I8. The parts thus brought together are united by a welt or tape 22.

To reinforce the border strip I5, an inner pad'- ding 23 is shown stitched thereto.

In the foregoing construction, we utilize the extremely flexible and resilient foam rubber pad I'I without at the same time deforming the top and bottom surfaces of the mattress. The padding or filling material, supported by the spring structure and confined evenly thereover by the cotton layer I3, provides a firm and uniform base for each foam rubber pad I'I. The pad is held securely in position by the marginal attaching members I9, and it is held against distortion or wrinkling at lintermediate points by close contact with the .cotton layer I3.

In the modification shown in Fig. 3, muslin covered `coil springs 24 provide a spring core, about which is formed a filling material 25 of cotton, kapok, or other suitable material. The

filling 25 is confined in firm and even relation to the spring core by a muslin cover 26. About the taut Ycasing thus provided, We kplace the foam rubber lpads 21, the ends `of the pads being provided With ktie strips 28 cemented thereto. The ends of the strips 28 are secured to the border member 29, which is provided with a cord gimp 30. The cushion outer casing extends between the attachment strips 28 and the folded edges of the border 29, Yand the parts are secured together in thisposition, Aas illustrated in Fig. `3. A Whilev in the mattress and cushion illustrated, we have shown certain specific arrangements, it will be understood that considerable variation can be made in such arrangements and materials without departing from the spirit of our invention.

It is important to note that in the mattress and cushion as illustrated, we have provided a muslin enclosed resilient center, the muslin cooperating with lling layers and an inner spring core to provide a rm `but yielding base for the porous rubber pad. At 'the same time, the yielding of the foam rubber pad on one side of the mattress will lplace no strain whatever -upon the other side of the pad.

. The uniformity and smoothness produced by the inner cotton layers I3 enable highly resilient and exible pads kI'I to be maintained in a desired even shape adjacent the exterior portions of the mattress top and bottom, whereby the highly flexible character of the sponge rubber is utilized for giving a local surface resiliency and yielding quality. The inner yielding cotton-covered spring core provides a form preserving base for 55 the porous pad While, at the same time, adding resiliency of a secondary and sturdier character to the local resiliency of the sponge rubber pad.

In the modified structure shown in Fig. 4, a cotton layer 33 is formed about the muslin-covered spring core 34. A muslin layer 35 is then drawn about the cotton and a stitch 36 engages the forward portion of the muslin 35 and extends through the front wall of the border casing 31, thus forming a roll 38 at the upper and lower corners of the mattress.

A foam rubber pad 39 is provided with a tape member 40 which is secured to the border casing 31 and the outer ticking 4I by the tape or welt 42.

In this structure, the muslin 35 provides a smooth even base for the extremely resilient porous pad 39. Further, the rolls 38 provide a sturdy support for the ends of the pad where they are united to the mattress ticking and border ticking.

The structure shown in Fig. 5 is identical with that shown in Fig. 4 except that the tape 40, cemented to the rubber pad 39, is stitched at its forward end to the roll 38 rather than being secured to the outer ticking and the border ticking by the tape 42.

While we have shown a fabric mattress border strip, it will be understood that, if desired, the porous rubber pad may be extended about the sides of the mattress to form border strips. Or, if desired, a border strip of porous rubber may be secured to the upper and lower pads and form therewith an enclosure for the spring structure.

It will be understood that the tape cemented to the rubber pads may, if desired, be secured to the muslin or other parts of the mattress by cementing as well as by stitching.

The detailed description has been given 4for the purpose of illustrating a specific manner in which the invention may be carried out. Obviously wide changes in details may be made without departing from the spirit of our invention as claimed. We wish it to be understood that we do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to 'a person skilled in the art.

We claim:

1. In a mattress structure of the character set forth, an interlocking spring core, a fabric web about said core enclosing the same, filling material about said fabric web, a second fabric web about the filling material, a, border casing, stitching extending obliquely through said border casing and the top and bottom portions of said second web providing edge rolls extending about the upper and lower surfaces of the mattress, a pair of continuous elastic porous rubber pads over said second web and extending over and covering substantially the entire upper and lower surfaces of the spring core, said pads being provided with tapes secured along the upper and lower marginal edges thereof, means for securing said tapes to said edge rolls along the edges of the mattress structure, and top and bottom tickings extending respectively over said pads and secured to said border casing.

2. In a mattress structure of the character set forth, an interlocking spring core, filling material about said core, a fabric web about said lling material, a border casing, stitching extending through said border casing and the top and bottom portions of said web providing edge rolls extending about the upper and lower surfaces of the mattress, a pair of continuous elastic porous rubber pads extending over said web and extending over and covering substantially the entire upper and lower surfaces of the spring core, said pads being provided with tapes secured along the upper and lower marginal edges thereof, means for securing said tapes to said edge rolls along the edges of the mattress structure, and top and bottom tickings extendings over said'pads and secured to said border casing.

3. In a mattress structure of the character set forth, a spring core, filling material about said core, stitching extending through said filling material and providing edge rolls about the upper and lower surfaces of the mattress, a pair of continuous elastic porous rubber pads extending over the filling material and extending over and covering substantially the entire upper and lower surfaces of the spring core, said pads being provided with means along the upper and lower marginal edges thereof for securing the same to said edge rolls along the edges of the mattress structure, a border casing, and top and bottom tickings extending over said pads and secured to said border casing.

MICHAEL KARPEN. HARRY BOWS.

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