Electric motor with brush retainer

Details Electric motor with brush retainer Electric motor with brush retainer

1993-10-29

1995-08-22

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310242, H02K 514, H02K 1300

Patent

active

054443202

ABSTRACT:
There is presented an electric motor having a drive shaft, an armature and commutator assembly fixed on the drive shaft, a housing disposed around the assembly, and an endframe fixed to the housing. The endframe is provided with a journal in which is mounted a bearing supporting the drive shaft. Further disposed in the endframe are brushes in contact with a commutator portion of the assembly, and brush tubes for supporting the brushes. A brush retainer is mounted on the journal and has a face portion overlying a face portion of the bearing. The journal is provided with ribs which extend axially of the retainer. The ribs are engaged with the retainer, which is plastic, and hold the retainer in non-rotative fashion with the retainer face portion abutting an end of the commutator portion.

REFERENCES:
patent: 2870354 (1959-01-01), Antonidis et al.
patent: 4293789 (1981-10-01), King
patent: 4340831 (1982-07-01), Kuhlmann et al.
patent: 4694214 (1987-09-01), Stewart, Sr.
patent: 4866322 (1989-09-01), Baumeister et al.
patent: 5004943 (1991-04-01), Gagneux
patent: 5006747 (1991-04-01), Stewart, Sr.
patent: 5332940 (1994-07-01), Kuragaki et al.

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