The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 2010
Filed:
Apr. 02, 2003
Junji Ando, Kariya, JP;
Naoyuki Sakai, Kariya, JP;
Toshifumi Sakai, Kariya, JP;
Hajime Fukami, Kariya, JP;
Toshiyuki Saito, Kariya, JP;
Koji Nishi, Kariya, JP;
Kazuyuki Nakanishi, Seto, JP;
Hiroyuki Mori, Nisshin, JP;
Hideo Tachikawa, Nisshin, JP;
Junji Ando, Kariya, JP;
Naoyuki Sakai, Kariya, JP;
Toshifumi Sakai, Kariya, JP;
Hajime Fukami, Kariya, JP;
Toshiyuki Saito, Kariya, JP;
Koji Nishi, Kariya, JP;
Kazuyuki Nakanishi, Seto, JP;
Hiroyuki Mori, Nisshin, JP;
Hideo Tachikawa, Nisshin, JP;
JTEKT Corporation, Osaka, JP;
Abstract
A friction clutch includes an iron inner clutch plate and two iron outer clutch plates. Each clutch plate has a sliding surface that friction-engages with the other clutch plates. A diamond-like carbon film containing silicon, which functions as a solid lubricant, is formed on the sliding surface of each outer clutch plate through a conventional method such as plasma chemical vapor deposition. The diamond-like carbon film contains 1 wt % to 80 wt % of silicon. A coupling device includes a pilot clutch mechanism that has the friction clutch and an electromagnetic actuator. As a result, the friction clutch has an improved resistance to wear, and the coupling device is durable.