Sub control panel for use in maintenance work, and method for manipulating the sub control panel
US6114779A · kind A · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sub control panel for use in maintenance work has a control switch, enable switches and manipulation prohibition members. The sub control panel is configured such that the control switch is not activated unless the enable switches are being kept ON by one hand of the operator and the operator is prevented by the manipulation prohibition members from manipulating with the one hand from turning ON the enable switches. When the sub control panel is to be used, the operator must use both hands and is hindered from inserting both hands to a driven part of a machine to be subjected to maintenance work when the machine is operating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.