Release mechanism for locking hinge for multi-positioned ladder
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United States of America Patent
Stats
-
Oct 6, 1987
Issued Date -
N/A
app pub date -
Nov 21, 1986
filing date -
Feb 14, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved hinge for collapsible ladders which includes a depressable release mechanism operable by one hand, leaving the other hand free to make ladder adjustment. The improved hinge includes a guide shaft disposed within a tubular hub member which is journaled within hinge plates to which the ladder stringers are connected. A handle with locking pins is secured to one end of the guide shaft, with the other end of the guide shaft being secured to a depressable hinge release mechanism.
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