| 摘要 |
PROBLEM TO BE SOLVED: To make actuation smooth, and to prevent the generation of noise and the like, in a lock typ bidirectional clutch which transmits rotations from an input side and prevents rotation transmission from an output side.SOLUTION: In the inside of a housing 1 equipped with an input shaft 2 and an output shaft 3, a planetary gear mechanism which has a planetary gear PG revolving and rotating around a fixed sun gear SG, and an eccentric mechanism which has an eccentric gear EG are installed in parallel in an axial direction. The planetary gear PG is engaged with the eccentric gear EG, and a center shaft of the eccentric gear EG is fitted in an eccentric hole of the output shaft 3 to configure a bidirectional clutch. Rotations in a normal/reversed direction from the input shaft 2 are transmitted to the output shaft 3 at constant speed, through the planetary movement of the planetary gear PG. On the other hand, when driven from the output shaft 3 side, rotation transmission from the eccentric gear EG eccentrically installed to the planetary gear PG is impossible, and the output shaft 3 is locked to prevent power transmission.SELECTED DRAWING: Figure 1 |
