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. 20, 2007
Filed:
Jun. 02, 2004
Toshifumi Maehara, Tokyo, JP;
Katsuhiro Miyata, Tokyo, JP;
Yukimasa Mitsude, Tokyo, JP;
Takayuki Mukasa, Tokyo, JP;
Takeshi Noda, Tokyo, JP;
Yoshiaki Saitoh, Tokyo, JP;
Toshifumi Maehara, Tokyo, JP;
Katsuhiro Miyata, Tokyo, JP;
Yukimasa Mitsude, Tokyo, JP;
Takayuki Mukasa, Tokyo, JP;
Takeshi Noda, Tokyo, JP;
Yoshiaki Saitoh, Tokyo, JP;
Akebono Brake Endustry Co., Ltd., Tokyo, JP;
Abstract
A cam mechanismprovided as a shoe drive mechanism includes a cam supporting platebeing loosely and rotatably fitted on an anchor pinfor receiving a shoe operating force, a first cam platerotatably connected to the cam supporting plateat an outer cam supporting position which is a position shifted away from the anchor pinradially outwardly of the drum, a second cam platerotatably connected to the cam supporting plateat an inner cam supporting position which is away from the anchor pintoward an operating force generator, so that a pair of brake shoesare opened outwardly by the separate cam plates, respectively.