Device in impact wrenches
US4759242A · kind A · utility
Inventor
Key dates
| Filing date | Mar 2, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Mar 2, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1427
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device at impact wrench, particularly for wheel nuts and wheel bolts and of the type which incorporates a shaft (2) with a handle (3) in one end and a socket in the opposite end (4), whereby the shaft between its ends is provided with a hub (6) about which is rotatably arranged an impact arm (8) which carries weights and is arranged to transfer impact movement to the shaft via stops (7) arranged at the hub, whereby in connection to the hub (6) is arranged members (7, 10) arranged to limit the ability of the impact arm (8) to transfer movement to the shaft (2) which carries the socket in one direction of movement of said impact arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.