Ratchet wrench structure
US6305247A · kind A · utility
Inventor
Key dates
| Filing date | Jan 9, 2001 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Jan 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet wrench structure includes a wrench body having a head portion defining a receiving space and a receiving chamber, an annular groove defined in the upper edge of the receiving space, an annular toothed block secured in the receiving space, a locking block pivotally mounted in the receiving chamber and provided with a plurality of engaging teeth mating with the annular toothed block, a spring mounted in the receiving chamber and urged between the inner wall of the receiving chamber and a rear end of the locking block, a cover mounted in the receiving chamber and defining an arcuate groove, and a C-shaped snap secured in and retained by the annular groove of the wrench body and the arcuate groove of the cover, and rested on the annular toothed block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.