Conical spring in a starter motor

Details Conical spring in a starter motor Conical spring in a starter motor

1991-11-12

1992-06-30

Pellinen, A. D.

Prime-mover dynamo plants

Electric-starting motor

74 7R, 74 7E, 290 38R, F02N 1500

Patent

active

051265834

ABSTRACT:
In a starter, the pinion, which is rotated by torque of an electric motor, is slid axially by the plunger of an electromagnetic switch and is pushed against the engine ring gear by a conically coiled compression coil, which allows employment of a small electromagnetic switch. Further, in an electromagnetic switch in which the plunger confronted coaxially with the stationary iron core slidably supporting a rod with a movable contact is moved towards the stationary iron core by electromagnetic force, a conically coiled spring is interposed between the plunger and the stationary iron core in such a manner that the spring is substantially coaxial with the plunger and the iron core, so that the playing of the rod is prevented.

REFERENCES:
patent: 1387559 (1921-08-01), Rushmore
patent: 1999199 (1935-04-01), McGrath
patent: 4881416 (1989-11-01), Isozumi

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