| 摘要 |
PROBLEM TO BE SOLVED: To shorten a transfer time by performing lifting and advancement/retreating of a transfer device in parallel. SOLUTION: A drive roller 16 is installed on a top unit 12 of a slide fork and the drive roller 16 is rotated at an equal speed in an opposite direction to an advancement/retreating direction of the top unit 12. Advancement and ascending of the top unit 12 are simultaneously performed in the case of loading and retreating and descending of the top unit 12 are simultaneously performed in the case of unloading. COPYRIGHT: (C)2008,JPO&INPIT
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