Continuously variable bicycle transmission mechanism and bicycle hub
AssigneeShimano Inc.
InventorHiroyuki URABE
Life of this patent
Estimating the term…
Abstract
A continuously variable bicycle transmission mechanism includes a ring roller, at least one conical planetary roller, a sun roller and a carrier. The at least one conical planetary roller is frictionally engaged with the ring roller. The at least one conical planetary roller is rotatable about a rotational axis of a roller axle of the at least one conical planetary roller. The sun roller is frictionally engaged with the at least one conical planetary roller. The carrier rotatably supports both ends of the roller axle of the at least one conical planetary roller. The carrier is movable along an axis with the at least one conical planetary roller.
Claims72
A continuously variable bicycle transmission mechanism comprising:
- a ring roller;
- at least one conical planetary roller frictionally engaged with the ring roller, the at least one conical planetary roller being rotatable about a rotational axis of a roller axle of the at least one conical planetary roller;
- a sun roller frictionally engaged with the at least one conical planetary roller;
- and
- a carrier rotatably supporting both ends of the roller axle of the at least one conical planetary roller, the carrier being movable along an axis with the at least one conical planetary roller.
A bicycle hub comprising:
- a drive member;
- a driven member;
- a one-way clutch mechanism disposed in a power transmission path between the drive member and the driven member;
- and
- a continuously variable transmission mechanism disposed in the power transmission path between the drive member and the driven member, the continuously variable transmission mechanism having
- a ring roller,
- at least one conical planetary roller frictionally engaged with the ring roller,
- a sun roller frictionally engaged with the at least one conical planetary roller, and
- a carrier rotatably supporting the at least one conical planetary roller, the carrier being movable along a hub axis with the at least one conical planetary roller.
Dependencies are inferred from the claim text.