Beds – Bedsteads – Having bottom
Patent
1993-01-14
1994-12-06
Grosz, Alexander
Beds
Bedsteads
Having bottom
5255, 267103, F16F 300, A47C 2300
Patent
active
053698223
ABSTRACT:
A bent wire spring unit having a spaced pair of foot portions and a spring member extending upwardly from each foot portion. Each spring member is formed of a series of torsion bars and connector bars interconnected by bends in the spring wire. The spring members are connected at their upper ends by a locking member or portion having first and second pairs of bends in the spring wire and two locking bars extending from the second pair of bends. The locking bars are linear segments of wire angled downwardly such that they converge into a connecting bend. The locking bars and the connecting bend lie in a single plane and the distal ends of the locking bars and the connecting bend extend significantly below an uppermost torsion member of each spring member. A spring assembly is disclosed which includes the bent wire spring unit attached to a wire grid at its upper end and a base frame at its lower end. The spring unit is locked onto the wire grid by attaching the locking member to a wire in the wire grid such that the wire is contained in the second pair of bends.
REFERENCES:
patent: 4577841 (1986-03-01), Hagemeister
patent: 4595181 (1986-06-01), Hagemeister
patent: 4828233 (1989-05-01), Hagemeister
patent: 4896386 (1990-01-01), Ogle et al.
patent: 4932535 (1990-06-01), Dabney
patent: 5142715 (1992-09-01), Ogle et al.
Grosz Alexander
Leggett & Platt Incorporated
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