Clamping chuck for drill bits and chisel bits
US4775160A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Sep 3, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17743
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A clamping chuck for securing a drill bit, chisel bit or the like in a drilling tool includes a guide sleeve into which the bit is inserted. Clamping jaws are radially displaceably mounted in the guide sleeve with a setting sleeve encircling the jaws. By axially displacing the setting sleeve relative to the guide sleeve the jaws can be radially displaced in gripping engagement with the bit. The setting sleeve has radially inwardly facing surfaces in contact with radially outwardly facing surfaces on the jaws. Retaining elements secured in the setting sleeve engage in slots in the jaws for guiding the jaws. The retaining elements can be strip-like elements extending through the slots in the jaws with the elements having a thickness corresponding to the slot width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.