Mechanical safety wedgelock and method of assembly with a tool handle
US5611134A · kind A · utility
Inventor
Key dates
| Filing date | May 29, 1996 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | May 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49963
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A retaining device for connecting a tool with an eye of varying geometry to the mating geometry of a tool handle. The retaining device includes: the eye of the tool; the end of the handle; lock wedges with a clearance hole and reaction surface; and a wedge bar of two or more integral bosses with threaded through holes, and one or more integral wedges. The lock wedge reaction surfaces are placed in the reaction surfaces of the handle with the narrow end of the lock wedge toward the slot(s) in the end of the handle. The handle and lock wedges are placed in the eye mating the lock wedges and lock wedge sloping surfaces. The wedge bar is oriented and placed in the slot(s) in the end of the handle; the fasteners are inserted through the lock wedge through hole, through the eye, and engaged in the threaded holes of the wedge bar. The fasteners are then tightened. As the fasteners are tightened; the wedge bar, and lock wedges and handle, are simultaneously drawn into the opposite ends of the eye. As the wedge bar is being drawn into the eye it is also being drawn into the slot in the end of the handle. The wedge bar spreads the segments of the end of the handle, and ultimately compresses …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.