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. 03, 2009
Filed:
Jun. 02, 2005
Fumikage Yamanaka, Wako, JP;
Fumikage Yamanaka, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A parking brake device includes a booster mechanism having an intermediate lever pivotally supported at a bracket, and a movable pulley supported at a tip end of the intermediate lever. When a first operation cable is pulled by operating a parking brake pedal, the movable pulley around which an intermediate portion of the inner cable is wound is pulled with doubled force, and the doubled pulling force is further boosted due to the lever ratio of the intermediate lever which supports the movable pulley, and is transmitted via an equalizer and a second operation cable to a brake device provided at a wheel with the pulling force boosted to a boost ratio twice as much as the lever ratio. By combining the movable pulley and the intermediate lever, the length of the intermediate lever to obtain the same boost ratio can be made half as compared with the case where only the intermediate lever is used, thereby making the booster mechanism compact. Thus, a parking brake device is made compact while a boost ratio of a booster mechanism of the parking brake device is secured.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile