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US 7,442,146 B2Granted
Internally geared bicycle hub
AssigneeShimano Inc.
InventorHiroyuki Okouchi
Life of this patent
Estimating the term…
Abstract
An internally geared bicycle hub is provided with a hub axle, a hub body, a drive member and a gear mechanism for transmitting a rotational drive force from the drive member to the hub body. The hub body and the drive member are mounted in a radially uncoupled manner to the hub axle, so as to be coupled to the gear mechanism. The drive member is supported by axially spaced bearing assemblies, positioned on the inner side of the drive member.
Claims17
An internally geared hub comprising:
- a hub axle;
- a hub body coaxially mounted on the hub axle to rotate relative to the hub axle;
- an input part coaxially mounted on the hub axle to rotate relative to the hub axle and the hub body, the input part being at least partially disposed within the hub body;
- a drive member coaxially mounted on the hub axle to rotate relative to the hub axle and the input part by axially spaced first and second drive member bearings positioned on an inner side of the drive member, the first drive member bearing bypassing the input part and being mounted between a portion of the drive member and the hub axle, and the second drive member bearing being mounted between a portion of the drive member and the input part;
- a one way clutch operably disposed between the input part and the drive member;
- and
- a gear mechanism configured and arranged between the input part and the hub body to selectively transmit a rotational drive force from the input part to the hub body.
4 more elements
Dependencies are inferred from the claim text.