Machine for bending bar or rod material
US4020669A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1976 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Apr 28, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D11/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention concerns a bending machine for bar or rod material such as reinforcement bars for reinforcing concrete. The machine includes a bending mandrel which is stationary during the bending process and a bending tool which can be pivoted about the mandrel. Directly in front of the bending mandrel in the direction of the feed path of the bar or rod material are positioned two clamping cheeks movable relative to one another in a direction perpendicular to the feed path of the material, the cheeks each including a clamping face substantially parallel with the feed path and a cutting face substantially perpendicular to the respective clamping face, the lines of intersection of these faces forming cutting edges substantially parallel with one another. The clamping cheeks are also movable relative to one another in a direction substantially parallel toward the feed path so that they can be displaced from a clamping position in which their respective cutting edges are offset from one another and their clamping faces face one another, into a cutting position in which their cutting edges are aligned and the clamping faces are offset from one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.