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:
Oct. 24, 2017
Filed:
Apr. 30, 2014
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Hayuru Inoue, Kawasaki, JP;
Daisuke Tanabe, Kawasaki, JP;
Yoichi Kumemura, Kawasaki, JP;
Seiko Tanabe, Kawasaki, JP;
Hitoshi Yoshida, Kawasaki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Abstract
An urging spring () urges a friction pad toward the exit side of the rotational direction of a disk when a vehicle equipped with the disk brake runs forward. The urging spring is disposed between a lug portion (A) of the friction pad and a torque receiving surface () of a carrier (). The distal end of the urging spring is configured to abut against the disk to perform wear detection. The urging spring includes a mounting portion (A), a first extending portion (B), a boundary region (E), a bent portion (C), and a second extending portion (D). The boundary region is reduced in width to lower stiffness. The bent portion is increased in width and provided with reinforcing portions, thereby enhancing the stiffness. Thus, the natural frequencies of the second extending portion in the rotational direction K and the vertical direction J come close to each other.