Ratchet wrench
US9868190B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 21, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Jan 17, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/467
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet wrench includes a body, a driving unit, a control unit, a first rotary unit, a second rotary unit and a second connector. The body has a first recess and a restriction portion. The driving unit is connected to the working end of the body and is driven by the control unit to allow the wrench to be rotated clockwise or counter clockwise. The first rotary unit has a first rotary rod, a third toothed ring, a sleeve, a first clip, a second resilient member and a bead. The second rotary unit has a second rotary rod, two caps, a second resilient member, a third rotary rod and a handle. The second connector is located in the restriction portion. The second connector is located corresponding to the groove of the first rotary rod, so that the first rotary rod does not drop from the first recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.