Press brake
US4926671A · kind A · utility
Inventor
Key dates
| Filing date | Dec 5, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Dec 5, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A brake press including a stationary bar, a translating bar, a disk rotatable about a fixed, stationary axis, a first set of linkage interconnecting one longitudinal end of the translating bar with the disk, and a second set of linkage interconnecting the other longitudinal end of the translating bar with the disk. The rotation of the disk in a first direction acts through both sets of linkage to translate the translating bar toward the stationary bar, and the rotation of the disk in a second direction acts through both sets of linkage to translate the translating bar away from the stationary bar. The disk may be selectively rotated in either direction or maintained in a stationary position by one or more hydraulic rams. The flow of hydraulic fluid to the hydraulic rams is controlled by a foot pedal which is biased in a position which will cause the hydraulic rams to rotate the disk so that the translating bar is moved away from the stationary bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.