Easily direction-convertible ratchet assembly for a hand tool
US6450312B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Mar 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/468
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet assembly includes a mounting body with an inner tubular hole, a rotating shaft with a ratchet wheel which is received in the tubular hole and which has right and left toothed portions, and right and left pawl members disposed in right and left chambers of the tubular hole and each having a pawl body which is movable to respectively engage or disengage the right and left toothed portions. An actuator is mounted on and is shifted relative to the mounting body between a normal position, where the actuator releases one pawl member to engage the respective toothed portion so as to turn the rotating shaft in a clockwise direction, and depresses the other pawl member to disengage the respective toothed portion, and a reverse position, where the actuator releases the other pawl member to engage the respective toothed portion so as to turn the rotating shaft in a counterclockwise direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.