| 摘要 |
PROBLEM TO BE SOLVED: To prevent a carrying traveling body from floating by excessive loading to a loading space, when switching the freely liftable loading space arranged in the carrying traveling body to a lifting position by a cam rail arranged on the carrying passage side. SOLUTION: An operation object means 27 is juxtaposed in a cross link mechanism 12 for liftably supporting the loading space 3, and is composed of a center folding twin link 28a freely bendable in the horizontal and lateral side direction, and a cam driven roller 29a journaled to a center folding part of the center folding twin link 28a. The center folding twin link 28a is journaled at one end to a fixing position by a vertical support shaft 33a, and is interlocked and connected at the other end with and to a movable fulcrum shaft 24 freely reciprocatable in the longitudinal direction via a vertical support shaft 35a on the carrying traveling body 1 side of the cross link mechanism 12. The cam rail 38 is constituted for rising and moving the cross link mechanism 12 by bending the center folding twin link 28a in the lateral side direction via the cam driven roller 29a in response to advance travel of the carrying traveling body 1. COPYRIGHT: (C)2006,JPO&NCIPI
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