发明名称 Ladder lock
摘要 A limb attaching lock formed in a manner of a hoop comprising two semicircular segments pivotally attached at one end thereof to a floating center bracket. The semicircular hoop segments are furthermore pivotally supported on a corresponding set of pivotal standoffs attached to a mounting fixture which also connects to two biasing springs for maintaining the hoop segments open. The mounting fixture, in turn, is secured to an attachment brace adapted to engage the end of the ladder. To allow for selective alignment of the limb attaching lock relative the brace and, therefore, accommodate various angles of the limb, the attachment fixture includes a rotatable mount which can furthermore be secured at any desired angle of orientation. A cord connected at one end to the floating bracket extends through openings in the fixture end brace for securing the hoop lock in a closed position.
申请公布号 US4090587(A) 申请公布日期 1978.05.23
申请号 US19760733328 申请日期 1976.10.18
申请人 PYLE, EDWIN G. 发明人 PYLE, EDWIN G.
分类号 E06C1/34;E06C7/48;(IPC1-7):E06C7/48 主分类号 E06C1/34
代理机构 代理人
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