Method for manufacturing integrated aluminum alloy bicycle front fork
US9205482B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 17, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49622
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing an integrated aluminum alloy bicycle front fork is revealed. Aluminum alloy is extruded to form substrate having three rectangular bars. Cut the substrate to get a blank. The blank is set into a mold for forging the three rectangular bars into three round bars. Then burr and waste material are removed. Next the blank is set into another mold for extruding the three round bars and the three round bars are punched to have guide holes. The round bars are drilled along the guide holes and penetrated to form round tubes. A tube opening of two round tubes is flattened and narrowed. Then the two round tubes are bent downward to form fork tubes of a front fork. The rest tube forms a front fork stem. Thereby an integrated light weighted front fork with good structural strength and beautiful appearance is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.