Title:
変速機用摩擦材
Document Type and Number:
Japanese Patent JP4593466
Kind Code:
B2
Abstract:
A friction material for a synchronizer ring comprises (A) a petroleum coke with an ash content of 0.1 mass % to 8 mass % or (B) a pitch coke with an ash content of 0.1 mass % to 8 mass %, more preferably (C) a calcined petroleum coke with an ash content of 0.1 mass % to 1 mass % or (D) a foundry coke with an ash content of 5 mass % to 8 mass %. The friction material is effectively used for a synchronizer ring requiring high coefficient of dynamic friction.
Inventors:
Yoshiaki Takagi
Matsui Eishin
Yoshihiro Fukushima
Tomoya Takada
Matsui Eishin
Yoshihiro Fukushima
Tomoya Takada
Application Number:
JP2005506776A
Publication Date:
December 08, 2010
Filing Date:
June 03, 2004
Export Citation:
Assignee:
Tanaka Precision Industry Co., Ltd.
International Classes:
F16D23/06; C08J5/14; C09K3/14; F16D23/02; F16D69/02
Domestic Patent References:
| JPH108034A | 1998-01-13 | |||
| JP2000345141A | 2000-12-12 | |||
| JP2000509467A | 2000-07-25 |
Attorney, Agent or Firm:
Ryu Iwatani