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. 19, 2013
Filed:
Nov. 24, 2009
Akihiko Shoge, Osaka, JP;
Tatsushi Okamoto, Osaka, JP;
Naoto Migita, Osaka, JP;
Shimano Inc., Osaka, JP;
Abstract
An internally geared hub is provided with a hub axle, a hub shell, a driver, a planetary gear mechanism and a gear changing mechanism. The hub shell rotates freely about the hub axle. The driver rotates freely relative to both the hub axle and the hub shell. The planetary gear mechanism is operatively connected between the hub shell and the driver. The planetary gear mechanism includes a plurality of driver rotation transmission paths that transmits rotation of the driver in a prescribed operating direction to the hub shell, and a hub shell rotation transmission path that transmits rotation of the hub shell in the prescribed operating direction to the driver. The gear changing mechanism is operatively connected the planetary gear mechanism for selectively establishing one of the driver rotation transmission paths or the hub shell rotation transmission path.