Axial pawl ratchet mechanism
US7454997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Sep 26, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/004
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An axial pawl ratcheting mechanism is provided that may be used for a wrench and comprises a first disc including axial gear teeth on a first side providing for ratcheting in a first direction. A second disc is provided having axial gear teeth and peripheral gear teeth. The second disc is mounted to the first side of the first disc so that the first disc axial gear teeth engage the second disc axial gear teeth and provide an axial pawl ratchet assembly. A ratchet head is provided having an internally toothed opening for receiving the axial pawl ratchet assembly therein so that the peripheral gear teeth of the second disc engage the internal diameter teeth of the ratchet head in order to transfer torque between the ratchet head and the axial pawl ratchet assembly. An actuator is provided for adjusting the positioning of the axial pawl ratchet assembly between a first engagement position and a second engagement position. In the first engagement position the first disc and the second disc will ratchet in a first direction and transmit torque in a second direction and in the second engagement position the first and second discs will ratchet in the second direction and transmit torque i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.