Torsion beam manufacturing method, torsion beam manufacturing apparatus, and torsion beam
US10888916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2017 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2206/81022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This torsion beam manufacturing method is a method for manufacturing a torsion beam which is provided with a uniformly shaped closed cross-sectional portion in which a cross section orthogonal to a longitudinal direction is a closed cross section having a substantial V-shape or a substantial U-shape with a pair of ear portions, and a shape changing portion which leads to the uniformly shaped closed cross-sectional portion and in which a shape of the closed cross section changes progressively away from the uniformly shaped closed cross-sectional portion, the torsion beam manufacturing method comprising: thickening to form a pair of thickened portions in at least the shape changing portion by pressurizing each of the pair of ear portions from outside against swelling of the pair of ear portions in a slate where both outer surfaces of each of the pair of ear portions are supported.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.