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. 27, 2022
Filed:
Mar. 27, 2019
Hitachi Astemo, Ltd., Ibaraki, JP;
Takashi Mitsugi, Ibaraki, JP;
Daisuke Hibi, Ibaraki, JP;
Takayasu Sakashita, Ibaraki, JP;
Jun Watanabe, Ibaraki, JP;
Rikiya Yoshizu, Ibaraki, JP;
Atsushi Odaira, Ibaraki, JP;
Takuya Usui, Ibaraki, JP;
HITACHI ASTEMO, LTD., Ibaraki, JP;
Abstract
To provide a disc brake having a planetary gear reduction mechanism that may be satisfactory costly and achieve improved reliability, a planetary gear reduction mechanism of a disc brake according to the present disclosure includes a sun gear having an input gear portion to which rotation from a motor is transmitted and an output gear portion extending axially from a radial central region of the input gear portion, a plurality of planetary gears configured to mesh with the output gear portion of the sun gear, and an internal gear configured to mesh with each planetary gear, and the internal gear has a cylindrical support portion configured to rotatably support the sun gear. Accordingly, at the time of assembly, the axis of the sun gear and the axis of the internal gear may be arranged substantially concentrically, which may result in improved reliability and cost satisfaction.