Upholstery for all kinds of furniture

Application filed April 3, 1929, Serial No. 352,274, and in Germany April 18, 1928.

The present invention relates to a spring upholstering for seats and backs of chairs, easy chairs, sofas, settees, couches, litters, motor cars and railway upholstery, and so • on. The hitherto customary compressible spring upholstery comprises several layers of cloth and upholstering material and requires for its manufacture a series of expensive handicraft processes. According to W the present invention, the seats and backs consist of parallelly arranged, tightly strained tension springs forming the surface of the seats and backs. Each tension spring produces its own spring effect inde1® pendent of the other springs. The tension springs are preferably covered with braiding or with elastic fabrics. On the surface of the tension springs is arranged a cover or cushion which can easily be removed. ²® The tension springs located under the cushion, which springs are elastically expanded by the load on them, return to their original position when released of their load, and thereby give the cover or cushion and con** sequently also the body a complete and absolute support.

The characteristic advantages of the present invention are its great simplicity, cheapness and adaptability. The constructional •° features enable the springs to act in such a way, that each spring accommodates itself both in the seat as well as in the back to any shape and position of the body, and affords support thereto. By the action of idual springs an ease and comfort previously unknown is obtained, as well as a hygienic rest. The especial advantage presented by the invention is in the use of the tension springs in the backs, where the ef⁴⁰ feet of the rows of individual springs is utilized to its full extent, in contradistinction to the old manner of jointly tied spring upholstery. By the individual spring effect _M of the invention the unhealthy twisting of ⁴⁵ the vertebrae and the injurious position of the organs is made impossible. By the arrangement of open and easily exchangeable springs and of a suitable removable cushion „ the incidence of moths, destroying the .up⁶⁰ holstery as heretofore, is made impossible.

adequate

Various constructional examples of the present invention are shown in the accompanying drawing wherein:—

Fig. 1 is an illustrative view of a chair with the new upholstery. 65

Fig. 2 is a vertical section through an arm chair with superimposed covers or cushions.

Fig. 3 shows in cross section a method of fastening the tension springs by .means of screws. eo

Figs. 4 and 5 show a further advantageous manner of fixing the springs.

Figs. 6 and 7 show a further modification of fixing the springs.

The resilient surfaces of the chairs repre- 65 sented consist of tension springs b arranged parallelly and fixed to the chair frame a in any way desired. The spiral springs b are preferably protected by a coating or as is shown in Fig. 6 provided with an ex- 70 tensible elastic substance covering e. These coatings or coverings may be of any colour and pattern, and serve to hide or enclose the metallic springs so as to form a nicely coloured spring surface and for the purpose 75 of avoiding any metallic noises when the springs b are extended.

It is further possible to lay a cover or a cushion like arrangement over the layers of tension springs which cushion may con- 80 sist of cloth or leather. The cushion means has no connection with the spring or its covering but may be fastened to the frame of the chair, which fastening is however such that full spring action is possible. In other ⁸⁵words, the cushion means is elastic or easily removable but directly on the springs. The spring hooks may be fixed either rigidly or swivelled. Some of the methods are shown by way of example in Figs. 3, 4, 5, 6 and 7. ⁸⁸

Fig. 3 illustrates the fastening of the hook of the spring or the like b' by means of screws c and cup shaped washers. By these washers an eventual bending and loosening of the hook is rendered impossible, ⁸⁵and the fixing presents a neat appearance.

Fig. 4 shows a further modification of fixing. The seat and back frame a of the chair are drilled through at the points of suspension. The spring hook or the like ¹⁰⁸

1,008,903 is engaged with a button g having an· eyelet or hook d or is as shown in Fig. 5, it may be engaged with a suitable bar Λ. That part of the hole i remote from the 5 button g may be countersunk so that the spring δ is free to bend when extending.

Fig. 6 shows a method of fixing wherein a strap or a similar member m forms the main support. The strap m, may be clamped 10 tightly by means of the batten n screwed to the wooden frame a or it may be as shown in Fig. 7, formed with a stiffened edge k clamped by means of a batten n into a groove in the frame a. The springs δ may 15 be engaged either in the straps m (Fig. 6) provided with eyelets (1) or they may be engaged with the stiffened edge k (Fig. 7).

The suspension of the springs on straps affords a pliant connection. The springs 20 can be covered by a strip of fabric o to give the construction a finished appearance.