Method and apparatus for forming an end portion of a cylindrical member
US6067833A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Nov 16, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D41/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming an end portion of a cylindrical member or cylinder includes at least one roller supported on a main shaft to be radially moved to and from the main shaft. The cylinder is supported to position the central axis thereof on the plane including the main shaft. Then, at least one of the cylinder and the roller is driven to be rotated relative to each other about an oblique axis inclined against the central axis of the cylinder, while the roller is moved radially toward the oblique axis, with the roller being in substantial contact with the outer surface of the one end portion of the cylinder. As a result, the one end portion of the cylinder is formed into a reduced diameter portion such as a tapered portion having the oblique axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.