| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor-driven hand that can correctly position (centering) a workpiece having a different length such as a rectangular or oval workpiece. Ž<P>SOLUTION: The motor-driven hand includes two cam members, a first cam member 11B and a second cam member 12B stacked and supported by an axis on the same axis line; each of the first and second cam members has a pair of cam grooves 14, 16 formed in point symmetry; and the cam grooves 14, 16 of the first and second cam members lie in a different distance from the axis line. The first and second cam members have different diameters, and the cam grooves 16 with a large diameter of the second cam member 12B are formed at the position beyond the edge of the outer circumference of the first cam member 11B with a small diameter. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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