Tool clamping mechanism for a power tool
US6308425A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9481
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A clamping mechanism for a power tool which has a bayonet washer rotatably mounted on the end of a plunger so that the bayonet washer is rotatable between an open and a closed position. The bayonet washer is biassed towards the closed position by a torsion spring, but is latched in the open position when no operating member is positioned in the clamping mechanism. When an operating member is inserted into the mechanism through a slot in the bayonet washer and into engagement with the plunger, the washer is automatically released from the open position and rotates under the biassing force of the torsion spring to the closed position whereupon the operating member is locked into the power tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.