Longitudinal curvature adjustment assembly for a rain gutter roll forming machine
US7275403B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rain gutter roll forming machine wherein the final forming station has the exit drive rollers removed therefrom. The forming rollers for the lower front and back corners of the gutter are mounted for rotation about a single substantially horizontal axis and are supported by a camber adjustment plate. The camber adjustment plate is pivotable about a pivot point which is substantially within the plane of the bottom wall of the gutter. Accordingly, the relative pressures applied to the gutter by the corner forming rollers can be varied to compensate for longitudinal curvature of the gutter due to differential drag on the front and back gutter walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.