US2659417A - Spring assembly for spring cushion construction - Google Patents

Description

Nov. 17, 1953 A. v. HANDREN, JR

SPRING ASSEMBLY FOR SPRING CUSHION CONSTRUCTION Filed Sept. 5, 1950 INVENTOR. //=2/74//:/{,

Patented Nov. 17, 1953 SPRING ASSEMBLY FOR SPRING CUSHION CONS TEUOTION Arthur V. Handren,

signor to Township,

J12, Birmingham, Mich, as- No-Sag S pring Company, Warren Mich, a corporation of Michigan Application September 5, 1950, Serial No. 183,156 3 Claims. (01. 155 179) This invention relates to a spring assembly and more particularly, to a spring cushion construction adapted for use in sofa beds, davenports, and the like.

connected by straight portions. These strips are usually set on an arc longitudinal of their length and when the strips are extended and the ends thereof attached at spaced points to a supporting frame the resulting arcuate formation which the spring strip assumes, acts to resiliently resist deformation under load.

One of the objects of this invention is to provide spring cushion utilizing spring strips of this type so arranged and assembled that a relatively fiat load supporting surface is provided thereby rendering the cushion ideally suited for use in sofa beds, davenports and the like.

Another object of this invention is to provide a spring cushion of this type in which the strips forming the load supporting surface are provided with substantially V-shaped supporting ends by means of which these strips are attached to the frame of the cushion. The free terminals of these V-shaped supporting ends are non-pivotally sesupporting clips to provide relatively high arcs immediately adjacent thereto. These V-shaped supporting ends provide efficient means for absorbing and distributing the loads imposed on the load supporting surface and for maintaining the shape or contour of the periphery of the cushion.

Another object of this invention is to provide a spring cushion of this character having arch elements, the end of which are connected to and supported by the apices of the V-shaped elements and provide intermediate transverse support for the load supporting surface of the cushion. These arch-shaped supporting elements, which are tied to t e spring strips of the load supporting surface, also act load to the v-shaped supporting portions at both longitudinal edges of the cushion. The strips of the load supporting surface and the arch-shaped supporting elements are further connected to one another transversely by a pig-tail or t he like extending longitudinally of the cushion to eifect an additional distribution of the load.

Numerous other objects, advantages and novel details of the invention will Fig. 1 is a plan view of cushions with certain parts broken away, constructed in accordance with this invention;

Fig. 2 is an enlarged transverse sectional view elevation, taken substantially on the plane indicated by line 22 in Fig. 1;

Fig. 3 is an enlarged detail sectional view taken substantially on the plane indicated by line 33 the spring supporting clip;

Fig. 4 is a perspective view of the supporting clip; and

Fig. 5 is a detailed section taken substantially on the plane indicated by line 55 in Fig. 3.

shown as being rectangular shape and formed of angle iron presenting an upstanding flange II at its longitudinal sides.

The spring cushion forming the particular subinvention comprises an assemtially straight portions. These strips are produced in rolls and when the strip is unrolled and the ends separated the strip tends to arc or bow the resulting arcuate formation assumed bythe spring strip acts to resiliently resist destraight portions IS.

The main load supporting portion of the cushion is formed by a plurality of normally bowed or arched spring strips l4 arranged transversely of the frame I ll with the terminal portions thereof connected to the longitudinal side of the frame by means of metal clips I5. Each strip I4 has a top load V-shaped supporting portion I1 having an apex of each V-shaped supporting portion being connected to the frame, as heretofor described by clips I 5.

As shown best in Figs. 3, 4 and 5 each clip 15 is provided with spaced return-bent portions forming spring engaging loops l8 adapted to receive the last and the next to the last straight portions 3 0f the spring strip to non-pivotally support face of frame flange H as shown in Fig. 5 to prevent disengagement of the clip l5 from the: frame, as will be apparent. 10 p the spring strip end-to the frame-- against pivotal movement relative thereto,-thespring strip is arched 0r provided-with; anearcg at each end, as shown at 22, adjacent itsapointe. of attachment.

top is bounded or defined by a..border .wireZL secured to the spring strips H, at'the returnbends 16a thereof, by means of hog-ringsior. clamping bands 24.

Associated with the 4 underside .of thespring strips l4 are a pluralityv of archeshapedsupportsing and reinforcing elements- 25. preferably formed ofsinuous spring stripsisimilarsto strips l4. Any desirednumber of thesearch-shaped elements 25 may be employed but .ithas, been found that the association of. thesereinforcing elements 25 with alternate spring strips l4 produces an entirely satisfactory spring construction.-

Each reinforcing arch-shaped element 25-is connected intermediate its ends with its .asso-.- o0 ciated spring strip [4 by means of a hog ring-or clamping band 26, and is terminately, connected by hog-rings or clamping .bands 21 tomeadiacent apices l'la of the V-shaped portions 11. Extending transversely of the stripslland 25 and longitudinally of the frame I0 is a resilient. con-. necting member or pig-tail 28. This. member 28 may be in the form of a coiled spring or rubber strip and is preferably located betweenzthe strips H and 25 and is secured theretoby the. previously described clamping bands 26.? The ends of this member 28 are secured to the. border wire 23 by clamping bands or the like 29;

The spring construction of this invention which comprises an assembly of two sets of spring strips arranged in the novel and unique manner herein described provides a cushion ideally suited for use in sofa beds, davenports, and. thelike. The load engaging or supporting portiontof the cushion is relatively flat and the Vshapedsup-- porting ends of the main spring strips provide 0 emcient means for absorbing and-distributing the loads imposed on the load engagin surface... The

The periphery .ofv .ther:cushion;'.

4 associated arch-shaped members cooperate to reinforce the main spring strips and to distribute the load to the V-shaped ends of the main spring strips.

What is claimed is:

1. Inna spring construction, a frame, a plurality of main spring strips forming a platform portion for supporting a load, said platform portion terminating at each end in substantially V-shaped portions terminally connected to said frame, and arch-shaped spring'strips connected intermediate their ends to the underside of said platform portion and terminally connected to the apices ofthevhaped ends thereof.

2,..A:-.sprmg: construction comprising a frame. a .plurality of normally upwardly arched main spring strips arranged transversely of said frame and forming a platform portion for supporting a load, said platform portion terminating in substantially. V-shaped portions terminally i nonpivotally-connectedto said frame, arch shaped spring ;strips arrangedbeneath and connected to said platform portion and terminally connected to 1 the apices; of: the V -shaped portions thereof. and-a resilient. member extending longitudinally of, said .frame. and..transversely connecting said main spring strips.

A'springconstruction comprising a frame, a.-.pluralityofnormally .upwardly arched main springstrips .a-rrangedtransversely of said frame andforming a platformportion for supporting a load,.= said. platformportion terminating in substantially V-shaped. portions, ,clips engaging the ends of said V-shaped portions, said clips being detachably connected..to-said frame through apertures therein and. .non-pivotally connecting said ..V -shaped portions. .to the .frame, and archshaped spring strips .arrangedbeneathrand connected to said platform portion. and terminally connected to theapices of theV-shaped portions thereof...

ARTHURV. HANDREN,.JR.

References- Cited in thefiie of this patent

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