| 摘要 |
Two free lines are incorporated into one, along which a power line is installed, and a group rail having a free line changer is provided at a carrier confluent point. A chain dog(2) includes a contact projection(2a), and a passing prevention projection(2d). A face(3c) in contact with the chain dog(2) forms a circular arc rotated on a hinge(3k). A tilting hook(3) is constructed of a passing prevention projection(3a), a contact projection(3b), a slant projection(3e), a pushing projection(3g), and a backstop projection(3h). When the chain dog(2) engages with the tilting hook(3) and the carrier tilting hook(3) is pushed by a pusher(4) that is attached to the center of the carrier, the conveyor is driven by a tilting hook support(7).
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