Quick switching hand tool
US7484439B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 13, 2006 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Nov 13, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/468
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A quick switching hand tool comprises a driving head having a ratchet teeth portion; a control device having a control rod; the control rod being installed with a driving block which is interacted with a buckle unit; and the buckle unit is engageable to the ratchet teeth portion. When the control rod is pressed, the control rod will drive the driving block to rotate so that the buckle unit shifts with the driving block so as to switch the restoring direction of the driving head. Furthermore, in another design, the buckle unit has two buckle teeth blocks. Each buckle teeth block is pivotally installed to the driving head and the buckle unit is engageable to the ratchet teeth portion; an outer end of the driving block has an resisting rib for controlling positions of the buckle teeth block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.