Easy-to-operate and easy-to-assemble ratcheting-type wrench
US6722234B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 25, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jun 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wrench comprises a handle and a head extended from the handle. A web is defined between the handle and the head. The head includes a compartment in which a drive member is rotatably received. The web includes a transverse through-hole having an intermediate portion communicated with the compartment. A cavity is defined in the web and communicated with the transverse through-hole. A switch member is mounted in the cavity and rotatable relative to the handle between two positions corresponding to two opposite ratcheting directions of the handle. A pawl is slidably mounted in the transverse through-hole for engaging with the drive member. The pawl remains in the transverse through-hole during operation. A pin and a coil spring are provided to retain the pawl in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.