Method of manufacturing solid wheel rims
US4127022A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Jun 1, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49529
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a solid wheel rim having a wheel-rim flange at one end of a wheel-rim base and a spring-ring groove at an opposite end of the base, from a rolled and longitudinally welded sheet metal ring of a predetermined inner diameter having a reduced wall thickness over at least a part of its length, includes the expansion of a portion of the ring to produce an annular groove zone having an inner diameter equal to the predetermined inner diameter, an enlarged zone having an inner diameter greater than such predetermined diameter, and a tapered zone located between the annular groove and enlarged zones, the wall thickness of the ring being reduced during a pressing operation, and forming the spring-ring groove and the wheel-rim flange upon application of pressure. The pressing operation and the applications of pressure may constitute a single working operation, or may be carried out by using first, second and third presses, respectively. SU The invention relates to a method of manufacturing solid wheel rims, for example for trucks or lorries, with a wheel flange at one side of the wheel rim base and a spring ring groove at the other side, from a rolled (rounded) and l…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.