Bed spring unit and method

Details Bed spring unit and method Bed spring unit and method

A - Human Necessities

47

C

360/17

A47C 23/04 (2006.01) A47C 23/053 (2006.01)

Patent

CA 1067217

ABSTRACT An improved bed spring unit assembly is provided in which a preformed grid of perpendicularly intersecting wires, spaced apart and welded together, are tightly joined together as well as to the top turns or rings of a number of coil springs by inverted U-shaped wire clips detached and fed preferably automatically from a cemented group of such clips much like conventional staples. An upper grid wire is arranged to span each ring diametrically while a pair of lower wires parallel to each other are arranged as respective opposed chords of the ring each spaced inwardly at its weld from the adjacent perimeter of the ring just enough to permit the insertion of a clip leg or legs at an inward and downward slant into the space between the perimeter of the ring and the chord portion of the other wire while straddling the spanning wire. The legs are then bent outwardly and bent tightly around the ring so far as is necessary to press one or both into a wrapped position around the ring and to carry the wires down into pressed contact with the top of the ring thus making an indent in the chord. A second similar clip similarly connects the other chord and the spanning chord with the ring turn at the opposite point of the ring. The invention avoids the necessity for secondary operations such as welding or crimping to join the rings and the grid wires.

296032

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