US1476046A - Upholstery spring - Google Patents

Description

Dec. 4,1923. 1,476,046

. F. J. BRANDELET AL ,UPHOLSTERY SP'KING File d March 19 1921 INvENToRs. lam/u AAMM WITNESSES. a 3 Q4,

Patented ea. 4, 1923.

1 U i 1 s rank JQBRAND L Ann renn n H. emia, or Burriueto,nnvv roan.

UPI-IOLSTERYV srnrne.

Application filed March 10,1921. Serial No. 451,416.

to that class of spring units which have,

straight lengths forming the side of one or more We, and having small coils at their apices, in place of the usual spiral springs. One object of our invention is to provide 'aspring unit which will have practically a vertical movement, and being so con structed "as to .fold upon itself without touching :its difierent parts will operate without rubbing or squeaking. Its opposite coil eyes being connected the spring. unit cannot be pushed out of shape, and sets of spring units being fastened in series they cannot get out of alignment.

With these and various other objects in view our invention consists in certain features of construction hereinafter specified and claimed, reference being had to .the accompanying drawings forming a part of this specification.

Like numerals of reference indicate like parts in all the figures of the drawings.

Figure 1 is a front elevation of our im- 7 proved spring unit.

Fig. 2 is a side elevation of the same with a portion of webbing attached to the top for connecting a series of spring units.

Fig. 3 is a plan of the same with the webbing of Fig. 2 shown dotted and the bottom of the spring unit attached to frame wires. 7

Fig. 4': is a perspective view of our spring showing it mounted at the bottom on frame wires, the bottom members attached to a webbing for connecting a line of spring units, and the top attached to a Webbing, as

on Figs. 2 and 3, to connect spring units in parallel lines.

Fig. 5 is a plan of a frame showing the method of attaching. our spring units and,

the method of connecting them attop' and bottom by webbing.

It is understood that spring, units of a somewhat similar shape forming a portion 7 the other.-

of our present spring and, connected togetherhave been used, but they lack resiliency and ability to keep their shape, which areithe principal features of our. invention.

The spring unit as shown is made of a single piece of wire the-center length of which is at the top on center line A-eA and formed into a transverse T-shaped loop at 14 for attaching and holdingthe webbing 19 by meansof a webbingistrip 20fland rivets 21, 21, etc. This is for the purpose of anchorin'g the top, of the spring unit and giving it only an'up anddown motion.

Fromthe loop 14 the spring unit is formed of duplicate straight side member's 13-13, 11-11,. 9+9, 7-7, 5-15 and 3 -3, each pair,

as 13-13, etc., being symmetrical with and on opposite sides of the center line A A of Figs. 1 and These straight members are 7 connected at their apicesby coil eyes 1212, 10-10, 8-8, 6+6 and 1- 4 ending With coil eyes 2-2, and as shown in Figs. 2, and 4;.-

The contiguousstraight menibers, as-13 13,-

11-11, and l1 11,' 99, etc., form V shaped duplicate springs extending diagonally from the top to the bottom, except the lower straight members 3 which are-horizontal. 1

The apices' 1212, 10-1 0, 8-8 and 6+6 areheld from spre'adingwhen the-spring unit is compressed by means of the rods 18, 17, 16 and 15. Theserods are passed through the said apices and held in place by means of a head on one endand a nut on and 18 may be left out, as the occasion may require.

As will be base Wires form approximately the corners of a square and the remaining coil'eyes are It is understood that rods 17 noted in Fig. 3, the spring is i .so formed that theicoil eyes of the horizontal each more disposed toward the center of said J square than the previouslower coil eyes so it can be compressed fiat upon itself, and the side members and apices with their holding rods will. telescope into each other without touching, as in both front and side views, (Figs. 1 and 2) and the spring tapers in both directions toward the top. The loop portion ltprojects over the rods 1?, 15 and frame 1, but cannot come intoTcontact withfthem as the webbing 19 is threaded through the j i loop 14 and forms a bufier on the apioes6,j

6. It is understood that this loop 1 1 can.

be moved forward or back, orbent up to clear frame 1 if necessary, although it is in;

tended that Sufficient strength and resiliency will be incorporated in the springs so they will never be compressed quite fiat.

In Fig. 5, is shown the application of the spring units in rows and connected to a frame 1, I, 1 and 1, the outside member 1 being bent at right angles to formthe end member 24, towhich the remaininginside members 1,1 and 1 are attached at their ends. g

The spring units are mounted side by side and in rows on parallel frame members 1- 1 and 1-1. and 3, 3 of the spring units, which are side by. side, are connected to each other by means of a webbing 22, and a webbing strip 23, riveted to said'webbing fo-rceach'of said members 3, 3, etc. The webbing 22 is fastened at its ends to the opposite side 24- of the frame and so'holds the spring units stas tion'ary sideways, which the top Webbing 19 running across the spring units to front and rear preserve their cross alignment.

Wedo not limit ourselves to the one series of top webbing 19, but may use another top'webbing at right angles to, and fastened to webbing 19. 7

We do not limit ourselves to the arrange mentand construction shown, as the same may be varied Without departing from the spirit of our'invention.

Having described our invention what We claim and desire to secure by Letters Patent is:

1. An upholstery spring of the class described, being composed of parallel rows of spring units arranged and supported on parallel Wires in pairs,1each of said units being composed ofduplicate pairs of spring The lower members '3, 3,

wires oppositely disposed about a center line and with V shaped portions having coil eyesfat the apices of each V, each of said duplicate pairs forming a unit. and being held together by means of rods through said coil eye'sand independent ofthe other units,

anchor said units to each other at their tops eacn of sald units convergingupwaid in both front and side views and means'to.

by webbing in onedirection and to each other 7 at their basesby webbing at right angles to center line at right angles to said frame wires and rising from said base "wires diagonally upward and forward and back to form V shaped spring portions havin coil eyes at the apices of each V, each of said duplicate pairs of wires being tied together 7 by means of rods through said last named coil eyes and each of said spring portions above said base being more disposed toward the center line of; said unit than the one below it, whereby the tying rods become successively shorter toward the top of said unit.

7 FRANKJ. BRANDEL. FRANK H. RIGHERT. I Witnesses:

C. A. ORA-INE, LUomN C. JAcosson.

Images