Bending apparatus and bending machine
US8555694B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jun 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/0433
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bending apparatus for performing accurate non-destructive bending of material includes first and second jigs that are rotatable about a rotary shaft and that bend the material attached to the jigs as they rotate relative to each other. The first jig includes a bending section that is arranged offset from a rotary center to a rotating side of the material and that has a partially cylindrical surface with a radius of curvature corresponding to the radius of curvature of an inner peripheral surface of the material. Each of the first and second jigs has a suppressing section for suppressing displacement of the material, and a bending center of the material is arranged such that the material is not displaced relative to the first and second jigs when the material is bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.