Mechanism for bending straight wires into zig-zags, in particular for machines for the production of diagonal grids
US4444227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1981 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Nov 10, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21F27/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mechanism for bending a coplanar family of straight wires into zig-zags comprises deflector rollers for feeding the family of wires longitudinally in parallel with one another, bars adapted to be displaced transversely to the wires and carrying wire deflector pins, and a control device for moving the bars alternately in opposite directions transversely of the wires. In order to avoid sliding of the wires against the deflector pins during the bending operation, each bar is hinged to the one ends of at least two parallel bearer arms of equal length and pivotally supported about axes running perpendicular to the plane of bend. During each bending operation only one bar at a time can be displaced transversely by means of the control device to carry out a working stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.