Articulated split roller assembly for tube bender
US5226305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 9, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D7/024
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Briefly, and in accordance with the foregoing, the present invention comprises a roller assembly for use with a bending apparatus for bending conduit and the like. The bending apparatus includes a frame, a bending shoe associated with the frame and a drive device for controllably driving the bending shoe. The roller assembly provides a roller which pivotably adjusts to an outside surface of the workpiece to accommodate variations in the workpiece while it is being bent during a rolling operation. The roller assembly includes a shaft attached and supported by the frame, two pivot segments and two roller dies. The pivot segments are positioned along and spaced apart on the shaft and each has an arcuate surface in a facing orientation with the other pivot segment. The roller dies have facing ends and base ends and a pivot socket formed in the base end. The pivot socket is sized and dimensioned for cooperatively mating with the arcuate surface of the pivot segment. A pivot bore extends from the facing ends of each of the roller dies through the die to the pivot socket. The pivot bores may be slightly tapered inwardly from the facing ends towards the pivot socket. Each of the roller die…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.