Blade tensioning device for scroll saw
US4681006A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9483
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A scroll saw is disclosed having upper and lower reciprocable arms terminating in upper and lower ends having a saw blade connected therebetween. A releasable blade tensioning device is mounted on the upper end including a blade support member having a central portion pivotally mounted to the upper end with a first end thereof extending along the upper arm and a second end connectable to the saw blade. The blade support member is pivotable between a first blade tensioning position and a second blade tension releasing position, and a manually rotatable cam is mounted on the first end and a manually operable adjustment screw engageable therewith is mounted on the upper arm. The manually rotatable cam is constructed and arranged to force the first end and the upper arm apart in one rotated position thereof to move the blade support member to the first position, and to permit the blade support member to move to the second position in another rotated position thereof. The manually operable adjustable screw permits adjustment of the tension on the saw blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.