Method and tools for forming sheet metal
US5125258A · kind A · utility
Inventor
Key dates
| Filing date | Apr 1, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Apr 1, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D19/043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention concerns a method and tools for forming sheet metal, and in particular, a method for making a chase top from a stock rectangular piece of sheet metal. Creasing tools are described that each have a handle member and a creasing wheel suspended therefrom cooperates with a support lip to form first and second crease lines and first and second flange areas along each perimeter edge of the workpiece. A reinforcing ridge tool is shown having a handle member with a wheel rotatively suspended therefrom is used to indent the sheet metal along desired lines inwardly of the crease lines to form reinforing ridges. A bending tool is described having cooperating bending members for clamping the workpiece along each second crease line for bending the workpiece there along to form vertical wall portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.