Jointer cutter guard with featherboard
US5000237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1990 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | Jun 25, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23Q3/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A guard as disclosed for use with a woodworking tool such as a jointer having a worktable, a cutter head and a guide fence for guiding a workpiece through the jointer. The guard is pivotally mounted to the table and is biased toward the guide fence such that it covers the cutter head when a workpiece is not present. The guard includes a body portion and flexible fingers formed integrally with and extending from the body portion toward the guide fence. The flexible fingers act as a featherboard during a jointing operation and the pivotal movement of the guard may be limited such that the fingers engage a workpiece as it is fed through the jointer to thereby apply a biasing force against the workpiece toward the guide fence. The fingers further act to resist movement of the workpiece in a direction opposite to the feed direction during a kickback situation and thereby provide greater control over the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.