Wedging blade clamp for scroll saw
US6530579B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jul 11, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17752
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wedging clamp assembly is provided for retaining a saw blade. A housing defining a vertical cavity therein is included in the assembly. The cavity includes a top end and a bottom end tapered with respect to the top end. Extending through a bottom end of the housing is a saw blade passageway included in the bottom end of the cavity. Disposed inside the cavity is a saw blade retention mechanism. A piston is further disposed within the cavity. The saw blade retention mechanism is configured for lockingly retaining a saw blade upon insertion into the passageway, thus, causing the piston to be biased against the bottom end of the cavity. At least one locking element is further included in the saw blade retention mechanism, and such locking element is disposed in the cavity for engaging the bottom tapered end. A wedging clamping force exerted by the at least one locking element is applied to the saw blade, and such force renders the saw blade immobile relative to the housing. The saw blade retention mechanism is configured to release the blade when the biasing force on the piston is overcome by an opposing force applied to the piston, thus, releasing the wedging clamping force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.