| 摘要 |
PROBLEM TO BE SOLVED: To prevent deformation or abrasion of a running rail due to bending of a trolley. SOLUTION: A head trolley 31 for pulling a load trolley 41 for supporting a conveyed material comprises a front trolley body 111 and a rear trolley body 112. A vertical front running roller 113 is mounted to only one place of the front trolley body 111 in the longitudinal direction, and a vertical rear running roller 115 is mounted to only one place of the rear trolley body 112 in the longitudinal direction. The front trolley body 111 and the rear trolley body 112 are interconnected to constrain mutual vertical oscillation. The front end of a connecting rod 61 of which rear end is connected to the load trolley 41 is connected to the front trolley body 111. COPYRIGHT: (C)2004,JPO
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