Quick release mechanism for tools such as socket wrenches
US7398713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 2002 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Nov 28, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0035
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool of the type having a drive stud for receiving and releasing a tool attachment includes an opening in the drive stud and a locking pin movably mounted in the opening. The opening defines first and second ends, and the first end of the opening is located at a portion of the drive stud constructed for insertion into the tool attachment. An actuating member is movably positioned on the drive stud, and the actuating member defines a sliding surface that engages the pin. A first spring biases the sliding surface toward the pin, and a second, weaker spring biases the pin toward the sliding surface. The first spring reacts against a ring that is disposed between the spring and a shoulder formed on the tool. The shoulder extends away from the longitudinal axis of the drive stud by a lesser distance than the spring or the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.