| 摘要 |
PROBLEM TO BE SOLVED: To prevent partial abrasion of a meshing part in a planetary differential screw type rotation-linear motion converting mechanism. SOLUTION: In this planetary differential screw type rotation-linear motion converting mechanism, tilting torque tilting around the counterclockwise direction when viewed from above a revolving peripheral surface, operates on a planetary shaft 18 by a load. However, a rod 20 is put in a deflected state, and relative torque is generated in retainers 22 and 24 from the first, and clockwise torque is generated to the planetary shaft 18. Thus, the tilting torque generated in the planetary shaft 18 is lessened by the relative torque generated by the rod 20. Thus, tilting of the planetary shaft 18 can be restrained, and the partial abrasion in the meshing part can be prevented. COPYRIGHT: (C)2007,JPO&INPIT
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