Title:
HYDRAULIC DECLUTCHING DEVICE
Document Type and Number:
Japanese Patent JP2002340032
Kind Code:
A
Abstract:
To provide a hydraulic declutching device that prevents abnormal abrasion of a seal ring due to a foreign matter by the formation of a dust collecting circumferential recess in an inner circumference of a piston.
The hydraulic declutching device 4 is so constructed that the inner circumference 17 of the piston 8 inserted in an oil pressure chamber 13 has at least one circumferential recess 19.
Inventors:
MIURA YOSHIHISA
Application Number:
JP2001150355A
Publication Date:
November 27, 2002
Filing Date:
May 21, 2001
Export Citation:
Assignee:
KOYO SEIKO CO
International Classes:
F16D25/12; F16D25/08; (IPC1-7): F16D25/12; F16D25/08
Attorney, Agent or Firm:
Kazuhide Okada