Method and an apparatus for inductively welding a front fork of bicycle
US4584453A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1985 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Feb 6, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K13/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention discloses a method for welding the front fork of a bicycle which makes each junctures among the joint, the handlebar, and the fork blades simultaneously reach the melting temperature of a weld metal, so that the weld metal located in the joint evenly distributes over each juncture. The present invention also discloses an apparatus for welding the front fork of a bicycle which utilizes two high-frequency induction coils to heat the front fork respectively from the outer surface and the inner surface of the front fork, and controls the voltage applied to the high-frequency induction coils and the time span of the heating throughout all of the heating and welding procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.