Feed mechanism for woodworking machinery
US4662413A · kind A · utility
4Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1986 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Oct 28, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/741
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A roller (10) drives a workpiece (not shown, but to the right) along a fence. An electric motor (16) rotates the roller (10) through chains (18, 19) and a double sprocket (20) freely rotatable on an upright shaft (22). The roller (10) is rotatable in relation to an arm (26). The arm (26) is pivotable in relation to the shaft (22). A coil spring (30) around the shaft (22) is fastened at a lower end to a stop (32) and at an upper end of a collar (34), and urges the roller (10) towards the fence. The force of the spring (30) makes the roller (10) engage a wide workpiece strongly, and so increases its tractive effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.