Simplified motor assembly and related electrical connection in a

Details Simplified motor assembly and related electrical connection in a Simplified motor assembly and related electrical connection in a

1978-07-28

1980-04-01

Haroian, Harry N.

Undertaking

G11B 300

Patent

active

041958438

ABSTRACT:
The casing of a sound reproducing device defines the upper and lower bearings for directly receiving a shaft of a driving motor, as well as the outer shell for enclosing the rotor of the motor. This arrangement provides a motor assembly without the need for separate outer shell and separate brackets which are ordinarily indispensable with motors. The rotor hereof has a commutator being matingly electrically and slidably contractable with a pair of brushes fabricated from a metal wire. The free end of each wire comprises the brush, and the remaining portion thereof acts as a lead wire integral with the brush. The contact surfaces of the brushes and the commutator can be displaced or shifted by moving the two mating parts relative to each other for preventing defective starting due to poor electrical connection.

REFERENCES:
patent: 3721449 (1973-03-01), Sirinek
patent: 3823946 (1974-07-01), Nakajima
patent: 4004815 (1977-01-01), Watanabe

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