Title:
積層ブラシ
Document Type and Number:
Japanese Patent JP4512318
Kind Code:
B2
Abstract:
In a multilayer brush composed chiefly of copper and graphite and incorporated therein with a solid lubricant, which consists essentially of two types of brushes, a high-copper-content part brush containing the copper in a large quantity and a low-copper-content part brush containing the copper in a small quantity, at least the high-copper-content part brush contains zinc in an amount of from 0.1% by weight to 5% by weight, and the zinc and the copper form an alloy. This can provide a multilayer brush having a superior durability, which can prevent the performance of motors from lowering, without use of the harmful substance such as lead, and may less undergo any wear due to mechanical and electrical sparkling of the brush.
Inventors:
Teruo Kobayashi
Hiroaki Kawamura
Nobuyuki Yamashita
Kyoji Inukai
Youichi Murakami
Masami Niimi
Yasuyuki Wakahara
Hiroaki Kawamura
Nobuyuki Yamashita
Kyoji Inukai
Youichi Murakami
Masami Niimi
Yasuyuki Wakahara
Application Number:
JP2003026608A
Publication Date:
July 28, 2010
Filing Date:
February 04, 2003
Export Citation:
Assignee:
日立化成工業株式会社
株式会社デンソー
株式会社デンソー
International Classes:
C22C1/10; C22C9/04; H02K13/00; C22C9/05; C22C9/06; H01R39/20; H01R39/22; H01R39/24; H01R39/26; H01R43/12
Domestic Patent References:
| JP515114A | ||||
| JP58144557A | ||||
| JP449833A | ||||
| JP767294A |
Attorney, Agent or Firm:
Yukihiko Takada