Torsion beam manufacturing method and torsion beam manufacturing apparatus
US10618363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | May 18, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2206/81
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This torsion beam manufacturing method is a method of manufacturing a torsion beam that includes a uniformly shaped closed cross-sectional portion of which a cross section orthogonal to a longitudinal direction is a closed cross section having a substantial V-shape or a substantial U-shape at any position in the longitudinal direction, and a shape changing portion which has a connection region leading to the uniformly shaped closed cross-sectional portion and including a closed cross section having a shape different from the shape of the closed cross section of the uniformly shaped closed cross-sectional portion. The torsion beam manufacturing method includes pulling process of applying a tensile force in the longitudinal direction to at least the connection region of a torsion beam material including the uniformly shaped closed cross-sectional portion and the shape changing portion, to obtain the torsion beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.