Switch device of socket wrench extension
US6523441B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/599
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A switch device of a socket wrench extension includes a connecting shank formed with an axial circular hole receiving a restoring member and a drive rod, and a radial hole receiving a positioning ball. The drive rod has a tapered face and an insertion recess. A drive block is received in a radial oblong slot of the connecting shank, and has an insertion block that,may be inserted into the insertion recess of the drive rod. The drive block has a spring recess receiving a spring and a positioning pin. A control ring mounted on the connecting shank may move the drive block and the drive rod, whereby the positioning ball may be moved along the tapered face to sink into the radial hole, so that the connecting shank can be detached from the socket easily and quickly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.