Process for manufacturing a commutator

Details Process for manufacturing a commutator Process for manufacturing a commutator

1986-11-19

1988-02-23

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

2642722, 310 42, 310236, H01R 4308

Patent

active

047261137

ABSTRACT:
A commutator for use with a DC motor or a DC generator. The parent metal of the segments of the commutator is formed with bulging portions which have their outer surfaces generally coextending with the outer surfaces of protecting portions for contacting with brushes. This commutator is manufactured by forming a cylinder of a plate of a conductive material, by forming a plurality of pawls on the circumference of the cylinder, by molding a boss of a synthetic resin in the cylinder, by forming a plurality of notches in one end of the cylinder, and by cutting the trunk of the cylinder into a plurality of slits to form a plurality of separate segments.

REFERENCES:
patent: 3566460 (1971-03-01), Yamaguchi
patent: 4283841 (1981-08-01), Kamiyama

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