| 摘要 |
PROBLEM TO BE SOLVED: To provide a planetary-differential-type motion converting mechanism that suppresses the occurrence of uneven wear or chipping of each tooth face of screws or gears, formed in a planetary shaft, and the occurrence of uneven wear or chipping of each tooth face of screws or gears, engaged with the screws or the gears formed in the planetary shaft, owing to tilting of the planetary shaft. SOLUTION: The planetary-differential-type motion converting mechanism 100 is configured such that a plurality of planetary shafts 30 are interposed between a cylindrical rotor 10 and a sun shaft 20 interpolated in the rotor 10 so as to convert the rotational motion of the rotor 10 into the linear motion of the sun shaft 20 by utilizing a difference between lead angles of screws provided in the respective members. The planetary-differential-type motion converting mechanism 100 is provided with a support member 12a that is brought into contact with the front-side end part 30a of the planetary shaft 30 from the side of the rotor 10 so as to regulate the front-side end part 30a from being displaced such that the front-side end part is brought close to the rotor 10. COPYRIGHT: (C)2010,JPO&INPIT
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