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:
Jul. 03, 2012
Filed:
Nov. 18, 2008
Toshinori Inomori, Shizuoka, JP;
Yousuke Ishida, Shizuoka, JP;
Toshinori Inomori, Shizuoka, JP;
Yousuke Ishida, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka-ken, JP;
Abstract
A centrifugal clutch of a motorcycle has clutch housing which includes a friction plate, a clutch boss including a clutch plate, a pressure plate that pressure-contacts the friction plate with the clutch plate, a roller weight that receives a centrifugal force and presses the pressure plate toward a plate group side. The centrifugal clutch also includes an elastic body that constantly biases the pressure plate toward the plate group side to transmit a portion of a driving force from the clutch housing to the clutch boss even when the motorcycle engine is in an idling state. The elastic body may comprise a disc spring that biases the pressure plate toward the plate group and a coil spring that biases the pressure plate away from the plate group.