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:
Sep. 28, 2010
Filed:
Sep. 30, 2005
Hiromi Inagaki, Saitama, JP;
Yasuhiro Arikawa, Saitama, JP;
Masaru Gotoh, Saitama, JP;
Hidetoshi Kobori, Saitama, JP;
Hiromi Inagaki, Saitama, JP;
Yasuhiro Arikawa, Saitama, JP;
Masaru Gotoh, Saitama, JP;
Hidetoshi Kobori, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A lock piston operates to automatically lock a parking brake piston which achieves a parking brake applied state in response to hydraulic pressure in a parking brake application control hydraulic chamber and operates to release a locked state in response to hydraulic pressure in a parking brake release control hydraulic chamber, and a manual change-over unit holding the hydraulic pressure in the parking brake release control hydraulic chamber to a hydraulic pressure on a lock release side, is provided among the wheel brake side hydraulic path, the parking brake application control hydraulic chamber and the parking brake release control hydraulic chamber by bypassing a hydraulic pressure control unit which changes over the application or release of hydraulic pressure to the parking brake application control hydraulic chamber and the parking brake release control hydraulic chamber.