Bicycle hub gearbox
AssigneeShimano Inc.
InventorHiroyuki Okochi
Life of this patent
Estimating the term…
Abstract
A bicycle hub gearbox comprises a first planetary gear mechanism and a second planetary gear mechanism and a tubular linking member. The second planetary gear mechanism is operatively coupled with the first planetary gear mechanism. The tubular linking member include a first toothed ring part engaged with the first planetary gear mechanism at a first axial region and a second toothed ring part engaged with the second planetary gear mechanism at a second axial region such that a permanent synchronization between the at least two planetary gear mechanisms is achieved. The first and second toothed ring parts have different diameters and being axially spaced apart.
Claims14
A bicycle hub gearbox comprising:
- a first planetary gear mechanism;
- a second planetary gear mechanism operatively coupled with the first planetary gear mechanism;
- and
- a tubular linking member including a first toothed ring part engaged with the first planetary gear mechanism at a first axial region, a second toothed ring part engaged with the second planetary gear mechanism at a second axial region such that a permanent synchronization is achieved between the first and second planetary gear mechanisms, and a third toothed ring part disposed axially between the first and second toothed ring parts, the first and second toothed ring parts having different diameters and being axially spaced apart.
Dependencies are inferred from the claim text.