Brush holding structure for motor

Details Brush holding structure for motor Brush holding structure for motor

1990-03-09

1991-02-05

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310242, H02K 514, H02K 1310, H01R 3939

Patent

active

049908111

ABSTRACT:
A brush holding structure for guiding a brush to a commutator is supported in a motor case. The structure includes an insulator plate attached to the motor case. The insulator plate is provided with guide means for guiding the brush in a direction which is inclined to a radial direction of the commutator within a plane including the axis of the commutator. The structure further includes a plate-like spring which has, at both ends, coil portions for winding up. An intermediate part of the plate-like spring presses the brush against the commutator to hold the brush in contact with the commutator without any play.

REFERENCES:
patent: 847413 (1981-07-01), Levashou
patent: 2842692 (1958-07-01), Johnson et al.
patent: 2991379 (1961-07-01), Van Dam
patent: 3010042 (1966-11-01), Moore et al.
patent: 3022434 (1962-02-01), Kester
patent: 3025421 (1962-03-01), Sievert
patent: 3271605 (1966-09-01), Drabik
patent: 3430084 (1969-02-01), Hall et al.
patent: 4389588 (1983-06-01), Rankin
patent: 4800313 (1989-01-01), Warner et al.

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