| 摘要 |
PROBLEM TO BE SOLVED: To provide a power gripper capable of obtaining sufficient stroke of a grip member, and obtaining high reduction ratio with a simple structure without need of a conventional precise reduction gear. SOLUTION: A plurality of cam grooves 2a, 2b to which respective cam followers 21a, 21b of a plurality of grip members 20a, 20b are slidably fitted are spirally formed on one cam member 1. Besides, teeth 3 engaged with a driving gear 16 are formed on an outer-periphery of the cam member 1 so that the cam member 1 may work as a driven gear which constitutes a reduction mechanism together with the driving gear 16. When the one cam member 1 decelerates and rotates by being driven by the driving gear 16, the respective cam followers of the plurality of grip members 20a, 20b slide along the respective cam grooves 2a, 2b of the one cam member 1, and the plurality of grip members 20a, 20b simultaneously perform linear slide on a rail 18. COPYRIGHT: (C)2008,JPO&INPIT
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