Bending device
US5884517A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bending device which can reduce a change in bend radius caused by movement of a bending jig and which can twist an elongate material using a simple construction. The bending device has a positioning jig 6 with a clearance opening formed therein for passing a material 1, positioning jig 6, for receiving the material, a bending jig 12 with a clearance opening for passing the material 1. The bending jig is supported on a sliding mechanism 26 movable in a plane perpendicular to a material supply direction controlled by a sliding drive mechanism 32. The device is also provided with a first bending mechanism 51 for pivoting the bending jig 12 around a first axis orthogonal to the length of the elongate material and a second bending mechanism 55 for pivoting the bending jig 12 around a second bending axis 52 orthogonal to the length of the material and the first bending axis to bend the material 1. On the sliding mechanism 26, a twisting mechanism 41 is provided at a predetermined distance from the material 1 for pivoting the bending jig 12 around a pivot axis 24 parallel with the length of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.