Internal bicycle hub transmission with a one-way clutch for a driving member
AssigneeShimano Inc.
InventorsMinoru Itou, Tetsuya Hino
Life of this patent
Estimating the term…
Abstract
An internal hub transmission for a bicycle comprises a drive member rotatably supported around a hub axle, a hub body rotatably supported around the hub axle, a planetary gear mechanism disposed in a force transmission path between the drive member and the hub body that communicates rotational force from the drive member to the hub body through a plurality of power transmitting paths, and a clutch member that controls the planetary gear mechanism. A one-way clutch mechanism is disposed in a force transmission path between the drive member and the clutch member.
Claims27
An internal hub transmission for a bicycle comprising:
- a drive member rotatably supported around a hub axle;
- a hub body rotatably supported around the hub axle;
- a planetary gear mechanism that communicates rotational force from the drive member to the hub body through a plurality of power transmitting paths;
- a clutch member that controls the planetary gear mechanism;
- and
- a first one-way clutch mechanism disposed in a force transmission path between the drive member and the clutch member.
An internal hub transmission for a bicycle comprising:
- a drive member rotatably supported around a hub axle, wherein the drive member includes a sprocket-supporting portion structured to support at least one sprocket;
- a first bearing assembly rotatably supporting the drive member on the axle;
- a second bearing assembly rotatably supporting the drive member on the hub axle;
- a hub body rotatably supported around the hub axle;
- a planetary gear mechanism that communicates rotational force from the drive member to the hub body through a plurality of power transmitting paths;
- and
- a clutch member that controls the planetary gear mechanism.
The transmission according to claim 24 wherein the sprocket-supporting portion of the drive member is structured to support a plurality of sprockets.
Dependencies are inferred from the claim text.