| 摘要 |
PROBLEM TO BE SOLVED: To make the whole mechanism compact, and to reduce a manufacturing cost. SOLUTION: In an eccentric differential speed reducer 56, the rotation of the output shaft 59 of a drive motor 58 is transferred to any one 50a among two or more crankshafts 50, and the rest 50b of the crankshafts is turned so as to synchronize with the one crankshaft 50a. As a result, the mechanism can be made compact by shortening the axial length of the whole mechanism, and further a manufacturing cost can be reduced. COPYRIGHT: (C)2006,JPO&NCIPI
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