Clamping device for crane or the like
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United States of America Patent
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-
Mar 10, 1992
Grant Date -
N/A
app pub date -
Apr 18, 1991
filing date -
Apr 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure herein describes a clamping device to be mounted to an elet of a crane and which provides contact surfaces for limit switches that maintain the movement of a movable crane structure within predetermined limits. The clamping device defines a body having a top wall which is contacted by the limit switches and a side wall which cooperates with a plunger to clamp the device to the crane element. The plunger is spring-biased so that its head applies constant pressure against the crane element. The housing, in which the plunger is contained, includes a handle which acts as a lever to compress the spring to allow retraction of the head from the crane element and quick removel of the clamping device from the crane element.
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