Brush holder assemblies for small electric motors

Details Brush holder assemblies for small electric motors Brush holder assemblies for small electric motors

1978-12-22

1981-01-20

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310249, H02K 1300

Patent

active

042465087

ABSTRACT:
Brush holder assemblies are disclosed which prevent the spring, or conductor and terminal connector from protruding out of the brush holder and damaging the motor commutator. The constructions employ a brush housing having a restraining bridge at the front end thereof and a terminal connector having a rearwardly extending flange. As the brush wears down, it and the terminal connector to which it is attached move forwardly in the brush housing under bias of a coil spring. Upon striking the restraining bridge the terminal connector pivots forwardly under tension of the spring thereby wedging the flange against the top of the housing preventing further movement of the brush assembly.

REFERENCES:
patent: 3108201 (1963-10-01), Summerfield
patent: 3339098 (1967-08-01), Burrows
patent: 3480814 (1969-11-01), Amrein
patent: 3534206 (1970-10-01), Carey
patent: 3590297 (1971-06-01), Smith
patent: 3898492 (1975-08-01), Vassos

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