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:
Feb. 22, 2011
Filed:
Aug. 15, 2007
Kaoru Tsubouchi, Toyota, JP;
Kaoru Tsubouchi, Toyota, JP;
Advics Co., Ltd., Kariya, Aichi-Pref., JP;
Abstract
A motor-driven parking brake apparatus includes a load sensor (pressure sensor) for detecting axial load of a screw shaft. The pressure sensor includes a transmission member which receives the axial load via a circular surface of a plate, and a casing which accommodates the transmission member and receives the axial load via the transmission member. This casing has a circular opening having an opening area smaller than the surface of the circular surface. The pressure sensor detects a pressure generated due to a load received from an exposed portion of the transmission member which is exposed from the circular opening. Due to characteristics of the transmission member, the load received from the exposed portion is a portion of the axial load and proportional to the axial load.