Pipe bending machine
US4412438A · kind A · utility
5Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1981 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Jul 24, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pipe bending machine has a pipe feed rate setter. A bending unit has a bending roller and a drive for displacing the bending roller in the plane of bending, and a follow-up roller. The follow-up roller is arranged for engagement with the pipe after the pipe has been subjected to the action of the bending roller and is secured to one arm of a two-arm lever having a pivot axis which intersects the center line of the incoming pipe. The other arm of the lever carries a movable contact of the bending roller drive. The contact alternately engages two stationary contacts of the drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.