Folding device for forming a corrugation in a metal sheet and method for using a folding device
US10335844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jul 4, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D3/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bending device for forming a corrugation in a metal sheet, the bending device having a frame, a die having two die elements, each having a concave half-impression, mounted able to slide on the frame; a punch having a head able to engage inside the impression of the die so as to press the metal sheet; and two side clamps mounted sliding and able to move vertically with respect to the lower frame so as to clamp the metal sheet against the bearing surfaces of the die elements. During the displacement of the punch into its bending position, the metal sheet transmits a traction force to the die elements and to the side clamps so as to displace them into their near position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.