Tightening structure using high-strength self-forming screws
US7938609B2 · kind B2 · utility
5Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Jul 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a tightening structure with which a reduction in processing steps is achieved without modifying the shape of a partner member an improvements in bolt strength and fatigue strength are achieved, and with which the fitting length of a thread ridge is not altered greatly in comparison with a conventional tightening structure such that a size reduction can be achieved, thereby contributing greatly to a reduction in the weight of a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.