Machine element or mechanism – Engine starters – Automatic
Patent
1991-09-03
1992-10-13
Herrmann, Allan D.
Machine element or mechanism
Engine starters
Automatic
74 7A, 74 7C, F02N 1100
Patent
active
051540908
ABSTRACT:
A coaxial starter including: an electric motor, an output shaft having a pinion mounted to the front end thereof and engaging the pinion with a ring gear in an engine when it is advanced and to disengaging the pinion from the ring gear when it returns. An electromagnetic switch is provided for advancing the output shaft when an excitation coil is energized and for closing a contact in a circuit electric motor. A planetary gear reduction device reduces the rotation of an armature shaft of the motor and an over-running clutch transmits the reduced rotation to the output shaft. An axially extending annular projection is provided in the outer peripheral front portion of a planetary gear frame of the planetary gear reduction device, an annular groove is formed in the outer peripheral portion of the projection and the inner peripheral portion of the annular projection is fitted with the outer peripheral portion of a clutch outer part of the over-running clutch so that it is slidable in the circular direction thereof if a rotational torque exceeds a predetermined value. A front end of a cylindrical portion is provided in the outer periphery of a coupling cap so as to press against a stiffening plate provided in the front end of the clutch outer. The coupling cup is staked into the annular groove formed in the annular projection to thereby couple the planetary gear frame to the over-running clutch in the axial direction thereof.
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Herrmann Allan D.
Krolikowski Julie
Mitsubishi Denki K.K.
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