PURPOSE: To obviate the delay in transmission of changeover force by transmitting the rotating power of a sun gear via an elastic member clamped onto the friction cylindrical part thereof to a changeover member to revolve a planetary gear supported by the changeover member.
CONSTITUTION: The elastic member 17 having the diameter D2 smaller than the diameter D1 of the friction cylindrical part 16 provided integrally with the sun gear 15 is mounted to the above-mentioned cylindrical part and cut grooves 18a of the changeover member 18 screwed with the planetary gear 12 are engaged with curved parts 17b of the member 17 to mount the gear to the cylindrical part 16. The rotating output of a motor M is transmitted via the member 17 clamping the cylindrical part 16 to the changeover member 18 without the time delay when the gear 15 is rotated by the revolution of the motor. The planetary gear 12 is also revolved while rotating around the gear 15. The changeover clutch mechanism of the simple constitution which is not easily slipped by shock is obtd. according to this constitution.
KOZUKA NAOYUKI
YOSHINO TSUNEMI
| JPS5796432U | 1982-06-14 | |||
| JPS6227724A | 1987-02-05 |