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:
Mar. 09, 2021
Filed:
Feb. 19, 2019
Ntn Corporation, Osaka, JP;
Yui Masuda, Iwata, JP;
NTN CORPORATION, Osaka, JP;
Abstract
When a rotor performs an ordinary rotation operation, an axial position of the rotor is retained such that the rotor is rotatable with respect to a stator. When a parking brake switch is operated while a vehicle is at stoppage, a rotor slider slides the rotor in an axial direction against a preload of an axially preloading part. This brings an engaging portion of the rotor into engagement with an engaged portion of a housing. The reverse input holder retains the rotation angle of the rotor during the engagement due to the fact that the engagement between the engaging portion and the engaged portion is maintained against a reverse input load acting on the rotor as an external force that accompanies a reaction force of a pressing force of a brake friction member.