Commutator assembly for small motor, method for producing the sa

Details Commutator assembly for small motor, method for producing the sa Commutator assembly for small motor, method for producing the sa

1995-03-30

1998-03-17

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, H01R 3916, H01R 3952

Patent

active

057290709

ABSTRACT:
A commutator assembly includes a plurality of commutator pieces for supplying an electric current from a brush fixed at a motor housing to a coil rotating together with a rotor shaft of a small motor, and a commutator holder of a plastic material fixed to the rotor shaft for supporting the commutator pieces. The commutator pieces are cut out of a commutator piece joint body which has a plurality of commutator pieces radially extending from a single temporary connection and is molded into the commutator holder during molding process.

REFERENCES:
patent: 1631461 (1927-12-01), Bonsieur
patent: 3708872 (1973-01-01), Ohuchi et al.
patent: 4195242 (1980-03-01), Mabuchi
patent: 5157229 (1992-10-01), Gerlach

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