| 摘要 |
A control means for use with a typical conveyor system for causing a trolley member of the conveyor system to be selectively driven by a pusher member of the conveyor system to move a load from one location to another. The control means includes cam means fixedly mounted to the conveyor system in proximity with the trolley member and includes dog means movably mounted to the trolley means. The dog means includes a pin member and cam follower means mounted to the pin member for coacting with the cam means to cause the pin member to move between a first position out of the path of the pusher member to allow the pusher member to move without moving the trolley member and a second position in the path of the pusher member to allow the pusher member to drive the trolley member.
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