Bit holder
US6929266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Jul 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/3481
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A “snap-in” bit chuck assembly for a rotary hand or powered tool, includes a body having a hex shank at its rearward end and a retraction collar slidably disposed on the body. The body has a coaxial hex socket formed therein to allow a tool bit to be inserted thereinto. A coil spring biases the retraction collar forwardly and biases a retaining clip toward the bottom of an angular slot formed in the body. The bit is removed by sliding the retraction collar rearwardly, to compress the coil spring and allow the retaining clip to retract back up the slot. The bit is biased out of a locked position by a plunger that ensures that the bit remains disengaged when the retraction collar is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.