Brush holder device and method of molding same

Details Brush holder device and method of molding same Brush holder device and method of molding same

1995-12-11

1998-02-10

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310239, 310245, 310246, H01R 3938, H02K 1300

Patent

active

057172714

ABSTRACT:
Deformation absorbing grooves 16a are recessedly provided on the inner surfaces of both side walls 15a of a main body 15 of a brush holder made of resin in the sliding direction of a brush 44, and brush holding surface portions 16b holding both end edge portions of the outer surfaces of the brush are formed at edge portions of the grooves 16a on the inner surfaces of the side walls 15a. A pair of first reinforcing ribs 16c are projectingly provided at closing end sides of cutaway portions 18 and 19 on the outer surfaces of the both side walls 15a in the sliding direction of the brush, a pair of second reinforcing ribs 16d are projectingly provided at both top sides of the outer surface of a top side wall 15d for closing an end surface across the tops of the both side walls in the sliding direction of the brush, and an end portion 46a on the reaction side of a torsion spring 46 is engaged with an engageable portion 21A projectingly provided on the first reinforcing rib 16c.

REFERENCES:
patent: 3654504 (1972-04-01), Susdorf et al.
patent: 3842302 (1974-10-01), Apostoleris
patent: 3955113 (1976-05-01), Hillyer et al.
patent: 4593220 (1986-06-01), Cousins et al.
patent: 5053665 (1991-10-01), Yamaguchi et al.
patent: 5148073 (1992-09-01), Tamura
patent: 5159221 (1992-10-01), Miyazaki et al.
patent: 5283494 (1994-02-01), Frank et al.

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