Reversible ratchet wrench with high torsion
US6629477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jun 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reversible ratchet wrench includes a handle having a driving head defining a driving chamber, a receiving chamber defined in the handle, a retaining recess defined in the driving chamber and connecting to the receiving chamber, and a driving member secured in the driving chamber and provided with a plurality of tooth-shaped first retaining portions. A direction control device includes a direction control member rotatably mounted in the receiving chamber, a retaining member pivotally mounted in the retaining recess and having a first side provided with a plurality of tooth-shaped second retaining portions meshing with the tooth-shaped first retaining portions, a pressing member rotated by the direction control member and slidably rested on a second side of the retaining member for pivoting the retaining member, and an elastic member urging the pressing member on the second side of the retaining member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.