Elevator equipment
The elevator system addresses power outage issues by using a DC power supply and storage battery to maintain operation of the emergency stop device, ensuring reliable function and enabling quick maintenance through battery diagnostics.
JP7880422B2Inactive Publication Date: 2026-06-25HITACHI LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- HITACHI LTD
- Filing Date
- 2022-06-29
- Publication Date
- 2026-06-25
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 0007880422000001 
Figure 0007880422000002 
Figure 0007880422000003
Abstract
Disclosed is an elevator device that comprises an emergency stop device operated by an electric actuator, while also having an operating function during power failure. This elevator device comprises: a car; an emergency stop device that is provided to the car; a drive mechanism that drives the emergency stop device; an electric actuator (10) that actuates the drive mechanism; and a controller (7) that controls the operation of the car, wherein the electric actuator comprises movable elements (34a, 34b, 34c) that are mechanically connected to the drive mechanism, and electromagnets (35a, 35b) that face the movable elements, the electric actuator comprises a direct current power source (300) that is connected to the electromagnets via a power supply contact (150) and excites the electromagnets, and a storage battery (111) that is connected to the electromagnets, the controller shuts off the power supply contact during a power failure, and when the power supply contact is shut off, the storage battery excites the electromagnets.
Need to check novelty before this filing date? Find Prior Art