Title:
無段変速機用シールリング
Document Type and Number:
Japanese Patent JP5616981
Kind Code:
B2
Abstract:
Provided is a seal ring manufactured from a mixture containing a soft resin including at least one of a thermoplastic elastomer and a dynamic crosslinked resin, and a hard resin including a thermoplastic resin. With this seal ring, the adhesion to the inner peripheral surface of a housing can be maintained in a no-load state where a hydraulic pressure is not generated even after use as a one-piece type for an extended period of time and oil leakage can be effectively prevented. The mixture constituting the seal ring preferably has a compression permanent deformation of 95% or lower after immersion in an automatic transmission fluid at 150°C for 100 hours.
Inventors:
伊藤 宏
大和田 明宏
大和田 明宏
Application Number:
JP2012552776A
Publication Date:
October 29, 2014
Filing Date:
January 13, 2012
Export Citation:
Assignee:
株式会社リケン
International Classes:
C08K3/04; F16J15/20; C08K3/30; C08K7/04; C08L101/00; F16J15/10; F16J15/3284
Domestic Patent References:
| JP2007191576A | 2007-08-02 | |||
| JP2005264068A | 2005-09-29 | |||
| JP2004352790A | 2004-12-16 | |||
| JPH0753830A | 1995-02-28 | |||
| JP2008037933A | 2008-02-21 | |||
| JP2007057091A | 2007-03-08 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Hiromitsu Nakayama
Kido 博兒
Ikeda Masato
Yoshiki Kuroki
Hiromitsu Nakayama
Kido 博兒
Ikeda Masato