Coaxial type starter device

Details Coaxial type starter device Coaxial type starter device

1989-10-19

1991-07-16

Pellinen, A. D.

Prime-mover dynamo plants

Electric-starting motor

F02N 1100

Patent

active

050327364

ABSTRACT:
A coaxial type starter device comprises, in axial alignment, an armature rotary shaft for a motor, a rotary output shaft with a pinion at its front end which is supported so as to be slidable in its axial direction, and an electromagnetic switch device attached to the rear end of the motor. Two windows are formed in the end wall of a rear bracket attached to the rear end of the yoke of the motor; two stationary contacts at the power source side and the brush side are arranged at the rear end portion of the motor and project inside of the electromagnetic switch device through the windows; an exciting coil is disposed in the electromagnetic switch device; and a cup-shaped plunger is slidably arranged in the electromagnetic switch device. A rod is axially movable with the plunger and supports movable contacts to be brought into engagement with the stationary contacts, and a cylindrical body is formed at the end wall of the rear bracket to surround the movable contacts. The cylindrical body is extended such that its free end overlaps with a part of the inner circumferential surface when the plunger is at the fully retracted position.

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