Multi-shaft electrically-operated automatic nut runner
US5277085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Sep 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Stopper pins are arranged on a path of movement of respective reaction-force receiving cam plates and are urged by urging forces of compression coil springs in a direction in which the stopper pins project from circular holes. As a solenoid is energized, the stopper pins are accommodated into the circular holes. The solenoid is operated by means of a stopper switch, and the solenoid in an energized state allows each combination socket to be fitted over a corresponding wheel-mounting nut. With the combination sockets fitted over all of the wheel-mounting nuts, the operation of the stopper switch causes the stopper pins to move to a projected position to prevent rotation of the reaction-force receiving cam plates, so that high torque is imparted to transmission shafts, allowing four wheel-mounting nuts to be simultaneously tightened or loosened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.