US1846825A - Spring structure - Google Patents

Description

- nur Pares-res ret. as, rss2 n stares ere i or Fica Bann n; ziriiannrrnn, or CHICAGOy iLLrnors, .essieivoajro BURTON-mitin' cionj* 'mansiones onrcneo, iLLrNors, A conroanrion or ILLINoIs SPRING STRUCTURE Application filed December 31, 192B. Serial No. 417,669.

This invention;A pertains `to cushion *porl spring structures employing upright, coiled.

springs and concerns more particularly novel and serviceable means tor tyine` or connecting them `together to form what lmay be termed a spring assembly adapted -for advantageous use in cushions, mattresses, bed springs and imilar constructions. Y y

@ne aim of the invention is to so crimp or bend the end coilsor terminal rings oi' the springs andthe tie-wires` preliminarily or initially, that they may Vbe easilyV and readily sprung into permanent, etlective, in-

terlocking engagement without additionalA bending, thus rendering the. assembling operation unusually simple, the united coils and wires being rigidly secured together in their connected relation.- j

In the associated drawings, one desirable embodiment of the invention, by way of example only, has been presented for use in connection with the following detailed Vdescription, and, for ease inunderstanding the construction, like reference immerals .have

' been em )loved to desivnate the saine art throughout the various -views.

In these drawings Figure 1 is a fragmentary, top, plan view of the impro ved antL novel spring-assembly;

Figure 2 is a vvertical section onV 2-2' of Figure 1; and

Figure 3 is a fragmentary, top, plan view and Figure 4 is an edge View of the top Coil of one oi the springs and the companion tie-wire, showing their approximate rela* tion to one another justpreliininary to being sprung into permanent interlocking association. i

'Referring to these drawings, it will be seen that the spring-cushion structure includes a plurality ot rows of erect, hourglass or double-tapered, coiled springs 11,

11, those `of adjacent or proximate rows being in staggered or offset relation, as is more or less common practic j rI`he top coils of such springs are connected or joined together the new fashion rendered possible by my invention nd the bottom convoluticns or rings of the springs are united or tied together in like manner, so

that Ya description of the ormerwill suffice for both. i l i v Y, Each 0i suchend-coils or terminal-rings 12" of the springs is crimped or bent at dia` met-rically-opposite points, so that zigzag tie or securing wires 13, 13 may be properly andv adequately fastened Vthereto to link or Vbind them together, each of such tiewires being4 connected in sequence 'toy adjacent springs ot the same row with intermediate similar `unions Ywith the springs' of the next. row.V

At each such location, the wire of' the endi-` ring is bent inwardly at 14, then outwardly at, 15, then inwardly again'at 16, and outwardly,-

at 17, forming two, spaced,inwardly-extended projections 18 with'an intermediate or middle, outward extension19.

Each wavy or serpentine connectmgwire Y 1 3, at. each oiits Vpoints otattachment to a j spring end-coil', is bent to provide adown-VV wardly-extended member 21 and an immedi ately-adj acent upwardly-arranged,portion 22 unitedly forminga trough 23 designed to re:-V ceive the part 141 of the companion end=ring thewire 13 also having similar parts 24 and. 25fforming another channel 2,6 for the accomrnodationlof the portion 17 of the end-coil.'l

As is fully shown, the portions 22 and'25g0t`v the tie-wire'are joined together by a straight or horizontal section 27 which, in the united construction, overlies the projection 19 of thec end-coil t-o securely fasten the parts together.

As has been suggested above, the spring, end-ring formations and the tie-wirebendings as shown anddescribed arel completely formedbefore the elements arev assembled,l

the latter operationbeing performed without additional or supplemental bendingb'y-mere ly springing the two parts intothe inter-u locked association portrayed-inFigure 1i To accomplish this resultgthe tie-wirefisl applied to' the end-coil in-substantially: the

j manner shown in Figures 3v andfly with/tho lock-bar 27 of the wire below its cooperating lug 19 of the terminal coil of the spring, and

then, by slightly twisting the two parts, they: may be sprung temporarily or momentarily' sufficiently to permanently position the porion 27 over the part 19, the companion secend-ring at two points, across said lirst two sidewise bent portions on the side thereof options of the two parts snapping readily into' their final interlocked relationship.

The spring-assembly constructed according to the principles of this invention may be manufactured at relatively small vcost and the elementsentering into the construction are vvfirmly and securely fastened together for the eiiicient performance of their serviceable functions. Y

rlhose a'cquaintedwith this art will understand that many changes inay be made in the structure and still fall within the scope of the invention, as delined by the appended claims, for example, the tiefwires,-instead of extending above the end-coils of the springs and with tlieparts 27 above the sections 19,*Y

may project below such terminal-rings and have the portions 27 similarly under the parts Springs, each such wire being connectedsucv cessively to the end-rings of springs of adjacent rows, each such tie-wire at each such connection being bent to Vextend across the posite its extension across the ring, and across said intermediate projection on the saine side that the tie-'wire extendsacross said ring, said end-rings and kwires being initially fully -bent Vto firmly and finally spring together into the specified interlockingV relation.

- 2. In a. spring-structure, the combination of a plurality of upright coiled springs in l rows in staggered relation, eachv of such springs having an end-ring which at each of two'of its opposite sides is bent sidewise inwardly of said end-ring at spaced points and outwardly between such points to provide an intermediate outstanding projection, and

'i tie-wires connected to and interlocked with said oppositesides of each end-ring-of said springs, each such wire being connected successively to the end-rings of springs of adend-ring at two points, across said first two sidewise *bent portions on the side thereof opposite its extension across the ring, and across said intermediateprojection on the ynis/lacet said ring, said end-rings and wires being initially fully bent to lfirmly and finally spring together into the specified interlocking relation, said'tie-wires constituting the sole means securing said spring end-rings together. A

y3. In a spring-structure, the `combination of a plurality of upright coiled springs in rows in staggered relation, each of such 'springs having an end-ring which at each of two of its opposite sides is bent sidewise inwardly of said end-ring at spaced points and outwardly between suoli points to provide an intermediate outstanding projection, and

tie-wires connected to and interlocked vwith said opposite sides of each end-ring of said springs, each such wire being connected successively to the end-rings of springs of adjacent'rows, each such tie-wire at each such connection being bent toextend over the endring, beneath said spaced inwardly extended parts thereof, and over said projection, said t end-rings andwires being initially fully bent to firmly and finally spring together into the specified interlocking relation, said tie-wires vconstituting the vsole means securing said spring end-rings together. A

In witness whereotl have hereunto set my hand. f .j FRED R. ZIMMERMAN.

Y jacent rows, each such tie-wire at each suchl connection being bent to extend across the saine side that the tie-wire extends across y.

Images