Patent · US Active

Friction clutch plate, friction clutch and driving force transmission apparatus

US9133891B2 · kind B2 · utility

1Cited by

2References

18Claims

0Family size

Assignee

JTEKT CORPORATION · JP

Inventors

Junji Ando · Novi, US
Hiroyuki Ando · Wako, JP
Takuya Tsuda · Amagasaki, JP

Key dates

Filing date	Jul 26, 2013
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Jul 26, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2069/004
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A clutch plate arranged to face a contact object so as to be relatively rotatable and relatively movable includes a contact surface being able to contact the contact object via lubricant and a minute groove open at the contact surface and formed of a plurality of groove portions having a predetermined groove pitch. A ratio of a contact area of the contact surface to an area obtained by adding an opening area of the minute groove to the contact area of the contact surface is 90% to 96% in an initial state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.