Bicycle crank assembly
US8246064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2165
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle crank assembly is provided with a crank arm and an axial gap adjustment device. The crank arm has a crank axle mounting part, an extension part extending from the crank axle mounting part, a pedal attachment part provided on a radial outer end of the extension part and a sprocket attachment part. The axial gap adjustment device includes an adjustment adapter and an adjustment member. The adjustment adapter has a crank arm engagement structure that non-rotatably engages the crank arm, a first crank axle opening, and a first screw part. The adjustment member has a second crank axle opening, and a second screw part threadedly engaged with the first screw part to selectively position the adjustment member relative to the adjustment adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.