Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1974-10-25
1976-05-25
Blunk, Evon C.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 869, 254 89R, B66F 714
Patent
active
039586642
ABSTRACT:
The lifting mechanisms of each of a plurality of columns of a vehicle hoist are synchronously driven by an endless member which may have its power source on one of the columns. A switch to energize and de-energize the power source has a control arm that is coupled, through a lost motion mechanism, to a trigger-like, normally inactive safety mechanism that is held cocked by a safety rod. A rotary idler carried by the safety rod is biased against the endless member in a direction to withdraw the rod from the safety mechanism in the event of a break in the endless member, releasing the trigger energy to effect shifting of the power source switch to the off position by overriding actuation of the lost motion coupling mechanism.
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Blunk Evon C.
Maxon Industries, Inc.
Mueller Frederick E.
Rowland James L.
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