Safety apparatus in connection with work loading device to safe guard machine tools operation
US7335840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | May 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/183
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention is an installation of a safety apparatus to prevent safety problems of machine tools caused in work-loading process. The safety apparatus comprises an actuator, used for connecting circuits of the machine tool to control its power on-off status, and a storing unit to ensure the chuck wrench resting at a designated safe position. This safety system will activate the actuator when the chuck wrench is returned to the designated position and, therefore, it will keep the circuits of the machine tool stay active during the machining operation. On the other hand, this safety apparatus will remain in power-off status if the chuck wrench is not placed at the designated position and, therefore, it will make the power circuits open and paralyze the machine tool operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.