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:
Apr. 18, 2017
Filed:
Mar. 11, 2015
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Masaru Okuyama, Nagakute, JP;
Mamoru Tohyama, Nagakute, JP;
Hiroyuki Mori, Nagakute, JP;
Munehisa Matsui, Nagakute, JP;
Naoya Ikeda, Toyota, JP;
Yoshio Fuwa, Toyota, JP;
Takatoshi Shinyoshi, Toyota, JP;
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, Nagakute-shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
The sliding member according to the present invention includes: a base material; and a sliding film that covers a surface of the base material and constitutes a sliding surface, and is used under a wet condition where lubricant oil exists. The sliding film according to the present invention is a laminated film that includes: an underlying layer formed on the surface of the base material; and an outermost layer formed at least on a part of the underlying layer. This outermost layer is characterized by including specific boron-containing amorphous carbon (specific B-DLC) that contains 4-50% B and 5-50% H when the outermost layer as a whole is 100 at %. This specific B-DLC itself wears away during the sliding to smooth the sliding surface, and an excellent low friction property is exhibited. The underlying layer of the specific B-DLC contributes to improvement in the wear resistance property of the sliding film.