Bicycle crank arm puller
US5369863A · kind A · utility
2Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53883
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bicycle crank arm puller includes a tubular insert externally threaded for threaded engagement in an internally threaded portion of a bore in a crank arm, the other portion of the bore receiving an axle end in press-fitted engagement. The insert has an enlarged, radially outwardly extending, trilobular handle. A drive screw is threadedly engaged through the tubular insert and has a part-spherical bearing end engageable with the axle end. A square drive socket on the outer end of the drive screw receives the drive lug of an associated lever member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.