US1906159A - Spring cushion construction - Google Patents

Description

April 25, 1933- s. KRAKAUER ET AL 1,906,159v

SPRING CUSHION CONSTRUCTION Filed June 7, 1929 2 Sheets-Sheet l 5 i I B I 0 i h 0 0 0 B IN VEN TORS SIIMVEL 6. M4 ecu: BY

A TTORNEYIS April 25, 19.33, s. 'KRAKAUER El AL 5 SPRING CUSHION CONSTRUCTION Filed June 7, 1929 2 Sheets-Sheet 2 ago, 4. /0 a ATTORNEYS.

Patented Apr. 25, 1933 UNITED STATES SAMUEL KRAKAUER AND SAMUEL MARCUS, OF NEW YORK, N; Y.

srnme CUSHION eonsrnoc'rion Application filed June 7, 1929; --Seria1 No. 369,200.

This invention is an improvement in spring sistance to lateral displacement, with a mincushionconstructions, and more particularly in the spring assembly of a removable cushion.

In the usual construction, such cushions are made from an assemblage of light coil springs, arranged in parallel rows, and enclosed in a casing of burlap, or the like.

The casing is partially completed before the insertion of the springs, individual seats being provided for the springs, so arranged. that a row may be inserted at one time'from an open side of the casing, the remainder of the casing being completed. 7

1 In the insertion, a row of springs is com pressed in a holder, which is inserted into the casing, with the planes of the spring coils substantially vertical, and itis apparent that there mustbe an opening into each spring seat, and that these openings of each row must be in alinement, in order that a row of springs may be inserted at the same time.

'After the row has been inserted by the holder, the holder is turned to bring the planes of the spring coils horizontal, after which they are dislodged from the holder. After all are inserted, the open side of the casing is closed. 7

1 Such spring assemblies must be of a nature such that they may be :sold at a relatively low price, and the amount of material entering into the assembly is of moment. The

spring, however, must be held against displacement under pressure, which when the cushion is in use, is of a nature such as to tend to displace the spring laterally, that is, in the direction of the plane of its coils.

To prevent such displacement,- it will be apparentthat the more nearly each spring is supported on all sides againstlateral displacement, the more stable will be the construction. i

One of the primary objects of the present invention is the provision of a casing for a spring assembly so constructed as to provide individual cells or seats for receiving the springs, so arranged that the springs of a row may be simultaneously inserted, and which after the springs have been inserted and expanded, will ofier a maximum of reimum of textile material in the casing. With this object in view, we provide a casin'g soconstructed that all or a major portion of the springs of the assembly are held in seats or cells of a nature such that the great- 7 er portion of the circumference of each spring is embraced relatively closely by the textile material of the casing, while at the same time each cell has anopening, and the openings are in alignment in one direction transversely of the casing to facilitate the simultaneous introduction of a row of springs.

When only a part of the springs are provided with seats or cells of this character, we soposition the said seats or cells. in the assembly, that they offer a support to the springs which are not so provided, thus greatly increasing the stability of the assembly over known constructions.

In the drawings forming a part hereof Fig. 1 isa plan view of a part of a cushion constructed in accordance with the invention. Fig. 2 is a section on the line 2-2 of Fig. 1. a

Fig. 3 is a perspective view of the material of one of the individual cells. Figs. 4 and 5 are views similar to Fig. 1 of alternate constructions.

Fig. 6 is a perspective view' of one of the cells of the construction of Fig. 5.

In the present embodiment of the invention the individual seats or cells are of a nature suchthat the major portion of the springs of the assembly are embraced for more than three-fourths of their circumference by the textile material of the casing, and such that thesprings so supported are interposed through the assembly at selected points, such that they will assist in the support of those springs which are less completely surrounded by the textile material.

In the embodiment of the invention shown in Figs. 1 to 3 inclusive, the improved cushion is composed of upper and lower layers 1 i and 2 of suitable material, such for instance, as burlap, which are joined at their edges, as indicated at 3, in a manner to be presently described, and which are connected throughout the area of the cushion with cell walls also to be described.

In the Fig. 1 construction, a plurality of individual cells is provided, each composed of three walls, as shown in Fig. 3. Each cell is composed of a strip 41 of suitable material, which may be of the same material as the upper and lower layers, and this material is notched at opposite edges on its long sides,.as indicated at 5. Flanges 6 between the'notches and ends are secured to the upper and lower layers 1 and 2 of the mattress, with the strip 4 in the position shown in Fig. 3,.that is, so shaped as to form the three side walls 41, and an opening opposite one of the walls.

The flanges 6 are secured to the layers in any suitable manner, as for instance, by stitching, indicated at 7, so that when the springs 8 are not in place, each individual cell will assume substantially the shape shown in Fig. 3. In practice, a row of springs is inserted simultaneously, one of the sewed edges 3 of the casing being left open for this purpose. The row of springs is placed in a holder, being compressed between the parts thereof, and the holder is inserted between the layers, and between the rows of individual cells.

It will be understood that the cells are arranged in the casing in like manner, the open sides of the cells all facing in the same direction. The holder for the springs is introduced in front of the open sides of a row of cells, and is turned in a well known manner, to release the individual springs into the individual cells. It will be noticed referring to Fig. 1, that the diameters of the cells are less than the diameters of the springs, so that when the springs are in place, the cell as a whole assumes an are shaped form, the walls fitting about the cylindrical coils of the spring. It will be apparent from the showing in Fig. 1 and the description, that each spring when inserted is in a cell of a nature such that the greater portion of the circumference of the spring is embraced relatively closely by the material of the cell.

In the above described construction, the springs are in individual cells, arranged as specified, that is, in such manner that each spring is embraced for more than threefonrths of its circumference by the textile material of the cell wall. However, an eX- cellent cushion is obtained, by providing that at least half of the springs are so celled, provided that the springs so arranged are interspersed at intervals throughout the assembly, whereby the springs in cells embracing at least three-fourths of their periphery are in positions to offer support to neighboring springs, which are not so' celled.

In Fig. 4, the cushion is composed of the upper and lower layers 9 and 10, and they are connected at their edges as indicated at 10a. At least half of the springs in the assembly are arranged in cells, one of which is indicated at 11, of the same character as that shown in Fig. 3 of the drawings. The cells 11 are arranged in rows, but the rows are spaced apart twice as far as in Fig. 1. Thus, room is left between the adjacent pairs of rows for another row of springs. Cell walls 12 are arranged at regular intervals between the rows. of cells 11, the said walls 12 having flanges 13 which are secured to the upper and lower layers 9 and 10 of the cushion. Cells 11 of Fig. et are similarly arranged, the open sides thereof facing in the same direction, and the walls 12 are arranged in line with the central or middle walls of the cells 11. This enables the holder to be inserted in the same manner as described for Fig. 1.

I11 F igs. 5 and 6, the cells are individual. The cushion includes the top and bottom layers 1 1 and 15, connected at their edges 16 as in Fig.1. The cells of each row are formed from a single strip of suitable material, which is folded upon itself at suitable intervals to form lateral double walls 18 extending oil of portions 17. The upper and lower edges are notched as shown at 19 at the angles between the portion 17 and the portions 18, to form lateral flanges 20 at the upper and lower edges of the strip. These flanges are secured to the upper and lower layers of the cushion in the .same manner as the flanges 6 are secured in Fig. 1. Thus there is provided a plurality of rows of individual cells, each having an opening, and all of the openings facing in the same direction.

When the springs are inserted, the walls formed by the portions 17 and 18 of the strip will tend to embrace the springs closely in the same manner as shown in Fig. 1. However, for the sake of clearness in Fig. 5, they are not so shown. It will be apparent that in Figs. 1 and 6, individual cells are provided for each spring, while in Fig. 4-, individual cells are provided for more than half of the springs, and they are so spaced throughout the assembly, that each spring supported over three-fourths of its periphery by the cell walls is in position to offer support to neighboring springs, not so supported.

In practice, the casing is partially completed before the insertion of the springs, one side being left open for this purpose. A row of springs is compressed in a holder, which is inserted into the casing between two rows of cells, the opening in the casing being at a side such that the holder may be inserted along the open sides of a row of cells. The springs in the holder have their coils in a vertical plane, and after the holder has been inserted, it is turned to bring the planes of the spring coils horizontal, and the springs are dislodged.

What is claimed as new is 7 In spring cushion construction, a casing comprising top, bottom, end and side walls, said casing being of fabric material and of a size to hold a selected number of coil springs between the top and bottom thereof, strips of fabric material connected to the top and bottom to form with said top and bottom Walls of the casing a plurality of compart- 10 ments, each having one side open, said compartments being similarly arranged and each having opposite walls spaced at a distance less than the greatest diameter of the springs and to be expanded by the springs upon insertion thereof and to embrace the greater portion of the circumference of a spring, each compartment being adapted to receive a single spring.

Signed at New York city in the county of 2 Bronx and State of New York this th day of May A. D. 1929.

SAMUEL KRAKAUER. SAMUEL S. MARCUS.

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