Elevator inspection operation device
US11623843B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2016 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator inspection operation apparatus for performing an inspection operation for a car in a pit of an elevator includes: an operation mode selector switch configured to switch an operation mode between a normal operation and the inspection operation; a return switch, which is provided outside the pit of the elevator, and is to be manipulated when the operation mode is to be switched from the inspection operation to the normal operation; and a latching relay configured to be latched to an inspection operation side when the operation mode has been switched from the normal operation to the inspection operation by the operation mode selector switch, and to maintain a latched state until the return switch is manipulated when the operation mode has been switched from the inspection operation to the normal operation by the operation mode selector switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.