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:
Aug. 26, 2025
Filed:
Jan. 27, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Takayasu Sakashita, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Ibaraki, JP;
Abstract
A disk brake includes: a piston, which has a bottomed cylindrical shape, and is configured to press braking members against a braked member; a thrust member configured to thrust the piston through rotation of a rotary member configured to be driven by an electric machine; a rotation stopping member configured to restrict rotation of the thrust member relative to the piston; an engaging portion, which is on an inner side of the piston, and is configured to restrict rotation of the rotation stopping member through engagement; and a fixing member configured to restrict movement of the rotation stopping member in an axial direction relative to the piston.