Anti-back up device for conveyor trolley
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United States of America Patent
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Apr 27, 1982
Grant Date -
N/A
app pub date -
Mar 13, 1980
filing date -
Mar 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A conveyor system comprising a track along which a plurality of carriers are movable. Each carrier includes a pusher dog that is movable into and out of position for engagement by a pusher lug of a conveyor chain. Each carrier is provided with wheels, and a pivoted anti-back up cam member which is normally urged by gravity in a direction to hold surfaces thereof out of engagement with the track. Each carrier further includes an actuator operable when it engages a preceding carrier or an obstacle to move the pusher dog out of engagement with the pusher lug. A spring is provided between the actuator and the anti-back up cam member so that when the actuator is operated to move the pusher dog, the cam member frictionally engages the track.
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