Methods and arrangements relating to edge machining of building panels
US9314888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Dec 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/52
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool configuration 68, 68′ incorporating a preprocessing step 67, 67′ and a method incorporating the tool configuration with its preprocessing step, producing an improved locking system of a floor panel 1, 1′. With the special tool configuration, and the preprocessing step changing the properties of the surface layer, certain surfaces are profiled of the joint edge of the floor panel, resulting in decreased tolerances. An equipment having an upper belt or chain guided in a horizontal direction, by an upper guiding device, and configured to press the floor panel vertically towards the lower chain, decreasing the tolerances of the produced floor panel as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.