Apparatus and method for forming workpieces
US6739586B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B1/22
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A forming apparatus includes a workbench and a pivot device. The pivot device includes a pivot plate (40) and a fixed plate (60). The pivot plate is fixed below the workbench, and rotatably seated on the fixed plate. The fixed plate defines two cutouts (66) respectively in two corners thereof, to form an arched-shaped top portion (61). Three locking plates (70) are attached on side walls (42, 46) of the pivot plate. When the locking plates are oriented vertically, they can pass over the two corners corresponding to the cutouts but cannot pass over other corners of the fixed plate. When the locking plates are oriented horizontally, they can pass over every corner of the fixed plate. By adjusting orientations of the locking plates, the combined base and pivot plate can be rotated within a variety of predetermined different angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.