Method and apparatus for forming a leaf spring eye
US5724851A · kind A · utility
4Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 1996 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus (100) and method are provided for forming an eye at the end of a heated leaf spring blank (2). Apparatus (100) includes a forming plate (16) operative to move angularly downwardly against a cantilevered portion (10) of blank (2) and roll it about a retractable rotary eye pin (5) to form the eye. Apparatus (100) includes neutralizing the force created by forming plate (16) against blank (2) during the rolling operation and further preferably includes a scarf blade (14) operative to move angularly to scarf or shape the end of portion (10) prior to the rolling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.