Suspension arm
US5695213A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2153
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A suspension arm in which the accuracy of a bush supporting portion is improved. The suspension arm is formed by respectively welding both side portions of an upper plate member and both side portions of a lower plate member to each other, the upper plate member and the lower plate member each having a substantially U-shaped cross-sectional configuration. The bush supporting portion is formed in such a manner that an upper cylindrical portion and a lower cylindrical portion are respectively formed by burring at rear ends of the upper plate member and the lower plate member. Further, clearances are respectively formed between the side portions of the upper plate member and the upper cylindrical portion, and between the side portions of the lower plate member and the lower cylindrical portion. Accordingly, there is no possibility that the heat generated upon welding is directly transmitted to the upper cylindrical member and the lower cylindrical member, so that the accuracy of the bush supporting portion can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.