Folding machine
US4331018A · kind A · utility
4Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | May 6, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A folding machine has a pair of longitudinally extending folding members which in a rest position shown in chain dotted outline have horizontal co-planar upper surfaces. A holding tool 41 holds a workpiece 42 on the folding members. To produce a fold or bend, the folding members are swung upwardly and outwardly about a common axis to form the workpiece around the holding tool. The adjacent edges of the folding members have interengaging projections and recesses so that the folding members overlap each other in the rest position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.