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:
Jan. 17, 2017
Filed:
Mar. 27, 2012
Takaaki Ohnishi, Saitama, JP;
Kazuaki Murayama, Saitama, JP;
Hiroshi Nakano, Saitama, JP;
Kazuyoshi Akutsu, Saitama, JP;
Hideo Miyabayashi, Nagano, JP;
Yoshiyuki Takamatsu, Nagano, JP;
Nobuyuki Kobayashi, Nagano, JP;
Motoyasu Nakamura, Nagano, JP;
Yoshiteru Matsunaga, Nagano, JP;
Takaaki Ohnishi, Saitama, JP;
Kazuaki Murayama, Saitama, JP;
Hiroshi Nakano, Saitama, JP;
Kazuyoshi Akutsu, Saitama, JP;
Hideo Miyabayashi, Nagano, JP;
Yoshiyuki Takamatsu, Nagano, JP;
Nobuyuki Kobayashi, Nagano, JP;
Motoyasu Nakamura, Nagano, JP;
Yoshiteru Matsunaga, Nagano, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Autoliv Nissin Brake Systems Japan Co., Ltd., Nagano, JP;
Abstract
An electric brake device includes a first slave piston which is housed in a cylinder body and generates hydraulic pressure in a first hydraulic chamber by moving forward, a motor which transmits a driving force to the first slave piston, and a restriction pin which is inserted and secured to the cylinder body in a direction perpendicular to an axial direction of the cylinder body and restricts a backward position of the first slave piston when a hydraulic pressure is applied from an outside to the first hydraulic chamber, wherein the restriction pin is inserted and secured to the cylinder mechanism in the direction perpendicular to the axial direction of the cylinder main body. Further, a clearance is formed between an inner peripheral wall of the cylinder body and a first groove portion and second groove portion which are formed on an outer surface of the restriction pin.