System for shaping and finishing wood chair seats
US3942288A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1973 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Jun 26, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B21/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A succession of wood workpieces is displaced by a conveyor past a plurality of finishing stations with the grain of the workpieces extending perpendicular to the transport direction. An abrasive surface of a finishing tool is displaced over the workpiece parallel to the grain direction at a peripheral speed equal to about 150 times the advance speed of the workpieces. These workpieces are wood chair seats formed with a surface depression and the abrasive surface is a sanding belt spanned over a vertically displaceable soft drum or cushion. The soft support for the sanding belt is displaced vertically by a cam arrangement to conform the path of travel of the sanding surface to the workpiece. The sanding region of one station is staggered transversely to the transport direction with respect to the other stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.