Installation and clip for anchoring furniture spring

Claim 2

A preformed generally U-shaped anchoring clip for securing the bottom turn of a coil spring to the top of a slat, said clip comprising a pair of legs each terminating in an outwardly extending finger at the free end thereof, at least one of said fingers being straight and inclined upwardly at an angle greater than 90* to the leg from which said finger extends, said finger constituting a cam for said bottom turn, each leg having a relatively sharp bend at the lower end thereof adapted to cut into the bottom corners of said slat in the operative position of said clip around said slat.

Claim 3

The preformed clip of claim 1, a substantially straight bottom on the clip spacing said legs apart and joined by said bends to said legs, the clip being resilient and the fingers cooperating with each other and adapted to cooperate with said bottom turn and constituting means for exerting upward pressure on the bottom and legs of the clip as well as transverse pressure on said legs urging said fingers toward each other and upwardly in the operative position of the clip wherein said bottom turn is under said fingers on the top of said slat and the slat is embraced by said clip.

Claim 4

The preformed clip of claim 2, said legs diverging upwardly and being movable at the upper parts thereof toward each other and into contact with the adjacent sides of a slat embraced thereby, by said turn in the operative position of said clip wherein said turn is under said fingers and on the top of said slat.

Claim 5

A coil spring installation comprising the clip of claim 1, a slat of substantially rectangular cross section embraced by said clip, a spring coil having a bottom turn on the top of said slat and under and between said fingers and adapted to slide progressively downwardly and inwardly on the rotation thereof relatively to the top of said slat and limited in the downward movement thereof by said top and the forcible contact of the clip bottom with the bottom of said slat, said one of the fingers cooperating with the other finger and the top of said slat and urging said clip upwardly and the legs inwardly, and also urging said turn downwardly, the clip having a straight bottom.

Claim 6

The coil spring installation of claim 7, said turn terminating in a substantially straight tangent tip portion increasing the effective diameter of said turn at said tip portion over that at the curved part of said turn.

Claim 7

A substantially U-shaped clip for securing the bottom turn of a coil spring to a furniture or bedding slat, said clip having a pair of upwardly diverging legs joined by corner bends at the lower ends thereof to a straight bottom, and means at the upper end of each leg adapted to cooperate with said bottom turn for progressing camming said turn toward, and forcibly against, the top of said slat, for forcing said legs toward each other and for forcing said clip bottom against the bottom of said slat thereby to compress said slat between said turn and said clip bottom and to lock said turn forcibly to said slat top, said means comprising an outstanding straight finger at the upper end of each leg, at least one of said fingers being inclined upwardly and making an angle greater than 90* with the leg from which said one finger extends, said one finger cooperating with the other finger, with said turn and with the top of said slat to lock the clip and said spring to the top of said slat, said top being flat and the bottom of the slat being flat and forcibly engaging the straight bottom of the clip.

Claim 8

A substantially U-shaped clip for securing the bottom turn of a coil spring to a furniture or bedding slat, said clip having a pair of upwardly diverging legs joined by corner bends at the lower ends thereof to a straight bottom, and means at the upper end of each leg adapted to cooperate with said bottom turn for progressing camming said turn toward, and forcibly against, the top of said slat, for forcing said legs toward each other and for forcing said clip bottom against the bottom of said slat thereby to compress said slat between said turn and said clip bottom and to lock said turn forcibly to said slat top, said means comprising an outstanding straight finger at the upper end of each leg, at least one of said fingers being inclined upwardly and making an angle greater than 90* with the leg from which said one finger extends, said one finger cooperating with the other finger, with said turn and with the top of said slat to lock the clip and said spring to the top of said slat, said top being flat and the bottom of the slat being flat and forcibly engaging the straight bottom of the clip.

Claim 9

A coil spring installation comprising the clip of claim 11, a slat of rectangular cross section and a spring having a bottom turn held in pressed engagement with the top of said slat by the fingers of said clip, said bottom turn terminating in a substantially straight tip portion extending tangentially to and from the curved part of said bottom turn thereby to increase the effective diameter of said bottom turn at said tip portion over the diameter of the curved part of said turn to provide an entrance space for said tip portion between said one finger and the top of said slat, said space being highest at the extremity of said one finger, said one finger being joined to the leg from which said finger extends by a bend in an arc of less than 90*.