Invention Grant
- Patent Title: Bicycle hub transmission
- Patent Title (中): 自行车轮毂传动
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Application No.: US12034215Application Date: 2008-02-20
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Publication No.: US07935019B2Publication Date: 2011-05-03
- Inventor: Hiroyuki Urabe
- Applicant: Hiroyuki Urabe
- Applicant Address: JP Osaka
- Assignee: Shimano Inc.
- Current Assignee: Shimano Inc.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors, LLP
- Priority: EP07005057 20070312
- Main IPC: F16H3/44
- IPC: F16H3/44

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.
Public/Granted literature
- US20080227588A1 BICYCLE HUB TRANSMISSION Public/Granted day:2008-09-18
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