发明名称 LIMITED DEFLECTION SPRING
摘要 A spring for a box spring assembly that is constructed to limit deflection of the spring to a position in which the spring is not overstressed. The limited deflection spring includes a wire body which has a load bearing portion, an upright yieldable portion, and a foot portion. The upright yieldable portion includes a pair of downwardly extending converging connecting bars integral at their upper ends with torsion bars at opposite ends of the of the load bearing portion. A pair of lower torsion bars are connected to the lower ends of the connecting bars and are spaced inward from a pair of downwardly extending converging wire columns which are connected at their upper ends to the lower torsion bars. As a downward load is applied to the load bearing portion, the wire columns move toward vertical positions in which they limit further deflection of the spring.
申请公布号 CA1331656(C) 申请公布日期 1994.08.23
申请号 CA19890597858 申请日期 1989.04.26
申请人 HOOVER GROUP, INC. 发明人 DABNEY, UPTON R.
分类号 A47C23/00;F16F3/02;(IPC1-7):F16F3/02 主分类号 A47C23/00
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