Title:
車両用回転電機のブラシ装置
Document Type and Number:
Japanese Patent JP4483797
Kind Code:
B2
Abstract:
A brush device assembled in a vehicular alternator is composed mainly of a pair of brushes, a pair of springs, and a brush holder. The brush holder accommodates the brushes and the springs. The springs push the brushes toward slip rings placed on and fixed to a rotary shaft of a rotor. A slant-line mark is drawn on a surface of the brush by paint. The direction of this mark is slanted to, not perpendicular to and not parallel to, the direction of pushing the brush toward the rotary shaft of the rotor. According to the proceeding of wear of the brush, the slant-line mark on the surface of the brush faced and contacted to the slip ring is shifted toward the right direction. An observer observes the position of the slant-line mark and recognizes the proceeding of wear and the optimum time to replace the brush with a new brush.
Inventors:
Harumi Kume
Application Number:
JP2006031281A
Publication Date:
June 16, 2010
Filing Date:
February 08, 2006
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02K13/00; H01R39/27; H02K11/00
Domestic Patent References:
| JP1274643A | ||||
| JP58143469U | ||||
| JP50028201U |
Attorney, Agent or Firm:
Masahiko Amagai