US1962871A - Spring cushion construction - Google Patents

Description

June 12, 1934. E. w. LEONARD 1,962,871

SPRING CUSHION CONSTRUCTION Filed Dec. 23, 1932 Patented June 12, 1934 SPRING CUSHION CONSTRUCTION Everett W. Leonard, Brooklyn, N. Y., assignor to Automatic Woven Wire Supply Co. Inc., Brooklyn, N. Y., a corporation of New York Application December 23, 1932, Serial No. 648,593

2 Claims.

This invention relates to spring cushion construction and is particularly directed to a spring cushion adapted to be incorporated into an inner spring mattress or upholstery construction, and the like devices.

An object of this invention is to provide an improved spring cushion of the character described, having coil springs in close alignment both diagonally and longitudinally to provide a highly resilient and durable construction.

Another object of this invention is to provide a spring cushion of the character described, comprised of a plurality of coil springs attached together to form a unit and disposed within a sack or bag receiving the same, and adapted to be incorporated bodily into an inner spring mattress or in upholstery construction.

Still another object of this invention is to provide a strong, compact and durable spring cushion construction of the character described, which shall be relatively inexpensive to manufacture, comprise few and simple parts, which shall be easy to assemble and incorporate into a spring mattress or upholstery construction, and which shall nevertheless be practical and efficient to a high degree in use.

Other objects of this invention will'in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a fragmentary, perspective view of a piece of double stripping for receiving the bottom or top convolutions of the spring and forming part of a spring cushion embodying the invention;

Fig. 2 is a fragmentary, top plan View of the stripping shown in Fig. 1 with coil springs mounted thereon;

Fig. 3 is a side elevational fragmentary view of a spring unit embodying the invention before placing the same in the bag;

Fig. 4 is a fragmentary top plan view of the spring unit shown in Fig. 3;

Fig. 5 is a cross-sectional view taken on line 5--5 of Fig. 4;

Fig. 6 is a perspective view of a bag for receiving the spring unit shown in Fig. 3; and

Fig. '7 is a fragmentary top plan view of a portion of the spring unit, illustrating a modified, construction. I

Referring now in detail to the drawing, 10 designates a spring cushion embodying the invention and comprising a spring unit 10a placed within a bag or sack 25. The spring unit 100. comprises a plurality of parallel-rows (shown horizontally in Fig. 4) of aligned parallel coil springs 11, preferably of the hour-glass type. The upper convolutions 12 of the springs 11 are disposed in a common plane and the lowermost convolutions 13 of said springs are likewise disposed in a common plane. The convolutions 12 of each row of springs is adapted to contact the convolutions 12 of the next adjacent-row or rows. The contacting portions of the convolutions 12 are interconnected or interlaced by the turns of longitudinal elongated helical springs or wire members 15. The lower convolutions 13 of each row likewise contact and are attached to the lower convolutions 13 of the next adjacent row or rows of springs by means of elongated helical springs or wire members 16. The springs 11 of each row are so positioned that the upper convolution 12 of each of the springs of said row substantially contacts the upper convolutions 12 of the next adjacent spring or springs in said roW. Likewise the lower convolutions of the springs 11 of each row substantially contact the lower convolutions of the next adjacent spring or springs of said row. Clips may be substituted for the lacing members 15 and 16 for attaching together the springs 11.

For attaching together the upper convolutions of the springs of each row there is provided a plurality of parallel members 17 each made of two superimposed, elongated strips 18 and 19 of burlap or any other flexible material stitched together along parallel lines of stitching 20 to form sleeves or pockets. The lines of stitching 20, as shown in Figs. 3 and 4 of the drawing, are disposed between the upper convolutions 12 and said upper convolutions are received within said sleeves. The convolutions preferably substantially touch the ends of the sleeves whereby the 1 springs may be in substantial contact with one another.

For attaching together the lower convolutions 13 of the springs of each row there is likewise provided a plurality of members 17a similar to members 1'7 and made of two superimposed elongated strips 21 and 22 of burlap or any other suitable flexible material stitched together by lines of stitching 23 to form sleeves or pockets for receiving said lower convolutions 13. Thus the upper 1 and the lower strips 17 and 17a are disposed in parallel rows (shown horizontally in Fig. 4) at the top and bottom of the unit 10a.

It will be noted that in manufacture the unit 10 may be formed with any number of rows of springs and any suitable number of springs may be provided in each row. For example, if it is desired to make a spring having a width of ten springs, a unit may be made of any length having a width of ten springs. After the unit 10a is finished it may be out up into smaller units by merely severing the strips 17 and 17a. Likewise the width of the spring unit 10 may bechanged by removing pairs of aligned interlacing mema bers 15 and 16 to separate rows of springs 11. The ends 11a of the springs 11 may be hooked about the edge of the strips 17 and 170. as shown in Fig. 2 of the drawing.

The unit 10a may be placed within the sack or bag 25 which is likewise made of burlap or any other suitable flexible sheet material. The bag 25 may have a lower portion 26 and an upper portion 27. The lower portion 26 may have a bottom wall, side walls and end Walls and be open at the top, whereas the upper portion 27 may have a top wall, side walls, end walls and be open at the bottom. The spring unit 10a may thus be placed in the bottom section 26 and then the top member may be placed thereover and stitched i to the bottom portion 26 by means of a line of stitching 30 extending entirely around the bag. The bag 25 together with the spring unit 1011. therein may thereafter be incorporated into a mattress to form an inner spring mattress or may be placed within the seat of a couch, chair or any other upholstery construction.

By reason of the fact that the rows of springs h are in contact withone another and the springs in each row are substantially in contact with one another, a maximum of springs is permitted per unit area whereby a highly practical and eificient spring cushion results.

It will be notedthat the strips 17 and 17a and the lacing members 15 and 16 serve to attach the springs 11 together to form a compact unit which in itself may be incorporated into any construction necessitating the use of foundation or cushioning springs. The bag 27 serves toproduce a silent construction and the lacing prevents the springs from moving about when the spring is in use.

In Fig. '7 there is shown a modified construction wherein pairs of contacting springs 12 are attached together by elongated wires 31 and small Wire clips 32. The wires are disposed between and tangent to adjacent rows of the top and bottom convolutions of said springs. Each clip 32 encircles a pair of contacting portions of the springs 11 and wire 31. Obviously the wires 31 and clips 32 may replace the lacing members 15 and 16 at both the top and bottom of the springs.

It will be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In combination, a spring unit comprising a plurality of parallel rows of aligned springs of the hour-glass type, elongated helical coil wire members interlacing the top and bottom convolutions of adjacent rows of springs together, and members each comprising a pair of superimposed elongated strips of flexible material stitched together along parallel lines forming sleeves receiving the upper and lower convolutions of said springs.

2. In combination, a plurality of parallel rows of aligned springs of the hour-glass type, elongated helical coil wire members interlacing the top and bottom convolutions of adjacent rows of springs together, and a pair of superimposed elongated strips of flexible material stitched together along parallel lines forming sleevesfor receiving the upper and lower convolutions of said springs, the convolutions ofsaid springs being substantially in contact with the stitched portions of said strips.

EVERETT W. LEONARD.

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