Machine element or mechanism – Engine starters – Automatic
Patent
1997-02-04
1998-05-05
Ta, Khoi Q.
Machine element or mechanism
Engine starters
Automatic
192 551, 475265, 464 45, H02K 700, F02N 1100
Patent
active
057460892
ABSTRACT:
In a starter including a planetary gear reducer for reducing a rotational output of a motor and transmitting the reduced rotational output to a starting object, the motor includes an armature 3, a motor output shaft 31 and a cylindrical yoke 1. The planetary gear reducer includes a ring gear 8 fitted in and engaged with the yoke at its one end and having an inner peripheral gear portion 11 formed on the inner periphery thereof, a bearing 13 mounted on the side wall of the ring gear at the center thereof, a plurality of planetary gears 4 rotatably interposed between the outer peripheral gear portion 32 of the motor output shaft and the inner peripheral gear portion of the ring gear and a starter output shaft 21 rotatably supported by the ring gear side wall, the starter output shaft being connected at its one end with the planetary gears and adapted to be engageable at its other end with the starting object. The ring gear is fixed to the cylindrical yoke against rotation relative thereto but permitted to rotate relative thereto in a circumferential direction of the yoke only when a rotational torque applied to the ring gear exceeds a predetermined value.
REFERENCES:
patent: 4494414 (1985-01-01), Hamano
patent: 4528470 (1985-07-01), Young et al.
patent: 4635489 (1987-01-01), Imamura et al.
patent: 4924108 (1990-05-01), Isozumi et al.
patent: 5113084 (1992-05-01), Isozumi et al.
patent: 5263906 (1993-11-01), Antonov
patent: 5323663 (1994-06-01), Ohgi et al.
patent: 5533415 (1996-07-01), Ackermann et al.
Fenstermacher David M.
Mitsubishi Denki & Kabushiki Kaisha
Ta Khoi Q.
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