| 摘要 |
The driving member (46) of each article carrier has a stopping cam (81) and an abutment (90), an accumulation cam (80), an anti-jam cam (82), and a pair of transversely projecting driving wings (92, 93), all cams being adapted to disengage the driving member from a pusher. The stopping cam (81) and abutment (90) are engageable with a trackside stop member to stop the carrier; the accumulating cam (80) is engageable with an actuator on the rear of a preceding carrier, also to stop the carrier; and the driving wings (92, 93) are engageable by forwarding and receiving pushers (42-1, 42-2) travelling on parallel side-by-side power tracks at a transfer zone where the driving member and pushers are relatively positioned vertically so that improper engagement between them is prevented by the anti-jam cam (82) and by beveled side surfaces (105, 104) on the driving wings and the pushers. Carrier bumpers (87, 88) and actuators are located within and protected by the web portions of channel-section carrier track members which can be mounted either above or below the power track. <IMAGE> |
