自転車用内装変速ハブ

Title:

自転車用内装変速ハブ

Document Type and Number:

Japanese Patent JP5405219

Kind Code:

B2

Abstract:

An internally geared hub is provided with a hub axle (12), a hub shell (14), a driver (16), a planetary gear mechanism (32) and a gear changing mechanism (20). The hub shell (14) rotates freely about the hub axle (12). The driver (16) rotates freely relative to both the hub axle (12) and the hub shell (14). The planetary gear mechanism (32) is operatively connected between the hub shell (14) and the driver (16). The planetary gear mechanism (32) 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 (20) is operatively connected to the planetary gear mechanism (32) for selectively establishing one of the driver rotation transmission paths or the hub shell rotation transmission path.

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Inventors:

Akihiko Masashita
Tatsushi Okamoto
Naoto Ueda

Application Number:

JP2009163394A

Publication Date:

February 05, 2014

Filing Date:

July 10, 2009

Export Citation:

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