Title:
A friction driving clutch disc, a friction clutch, and a driving force transmission device
Document Type and Number:
Japanese Patent JP6236930
Kind Code:
B2
Abstract:
An outer clutch plate (62) arranged to face an inner clutch plate (61) so as to be relatively rotatable and relatively movable includes a contact surface (sliding surface) (62b) being able to contact the inner clutch plate (61) via lubricant and a minute groove (62c) open at the sliding surface (62b) and formed of a plurality of groove portions (620c) having a predetermined groove pitch. A ratio of a contact area of the sliding surface (62b) to an area obtained by adding an opening area of the minute groove (62c) to the contact area of the sliding surface (62b) is 90% to 96% in an initial state.
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Inventors:
Junji Ando
Hiroyuki Ando
Takuya Tsuda
Hiroyuki Ando
Takuya Tsuda
Application Number:
JP2013138342A
Publication Date:
November 29, 2017
Filing Date:
July 01, 2013
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
F16D13/62; F16D27/115
Domestic Patent References:
| JP3041234A | ||||
| JP2007064289A | ||||
| JP8233003A | ||||
| JP5010354A | ||||
| JP2005036863A | ||||
| JP2012017808A |
Attorney, Agent or Firm:
Hirata International Patent Office
Tadao Hirata
Takashi Nomiyama
Hiroyuki Ito
Tadao Hirata
Takashi Nomiyama
Hiroyuki Ito
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