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:
Jun. 27, 2017
Filed:
Aug. 27, 2013
Advics Co., Ltd., Kariya, Aichi-pref., JP;
Yasuhito Hayashi, Nagoya, JP;
Yuichi Takeo, Aichi-ken, JP;
ADVICS CO., LTD., Kariya, Aichi-Pref., JP;
Abstract
A parking brake actuator generates and applies a braking force to a vehicle wheel in such a manner that the parking brake actuator converts a rotational motion of a screw member, which is rotated by an electric parking brake driving device, into a translatory motion and transmitting the converted translatory motion to a piston to push a brake pad toward a disc by the piston. The electric parking brake driving device includes an electric motor and a reduction gear mechanism which transmits driving force of the electric motor to the parking brake actuator. The reduction gear mechanism includes a gear body and a planetary gear mechanism, which is provided within the gear body and into which the driving force of the electric motor is inputted. A cushion rubber, which is compressible in the circumferential direction, is interposed between a ring gear of the planetary gear mechanism and the gear body.