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:
May. 03, 2011
Filed:
Feb. 20, 2008
Hiroyuki Urabe, Osaka, JP;
Hiroyuki Urabe, Osaka, JP;
Shimano Inc., Osaka, JP;
Abstract
A bicycle hub transmission basically includes a hub axle, a driver, a hub shell, a planetary gear mechanism and a clutch. The driver is rotatably supported relative to the hub axle. The hub shell is rotatably supported relative to the driver. The planetary gear mechanism is disposed between the driver and the hub shell for communicating rotational power from the driver to the hub shell through a plurality of power transmission paths. The clutch is arranged for actuating the planetary gear mechanism to select a different gear. The clutch includes at least one clutch plate which is non-rotatably supported by the hub axle and axially movable relative to the hub axle to selectively engage with and disengage from at least one sun gear of the planetary gear mechanism.