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Elevator apparatus

A technology for elevators and elevator control, which is applied in transportation, packaging, elevators, etc., and can solve the problems of complex and expensive communication network hardware and software

Active Publication Date: 2009-09-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the conventional elevator apparatus as described above, since information is input from the sensor to the safety controller through the communication network, in order to ensure high reliability as a safety system, a communication network with a relatively high reliability is required, and the hardware constituting the communication network and software have also become complex and expensive

Method used

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Examples

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no. 1 approach

[0039] figure 1 It is a block diagram showing the elevator apparatus according to the first embodiment of the present invention. In the drawing, a pair of car guide rails 2 and a counterweight guide rail (not shown) are provided in a hoistway 1 . The car 3 is guided by the car guide rail 2 to move up and down in the hoistway 1 . The counterweight 4 is guided up and down in the hoistway 1 by the counterweight guide rail.

[0040] An emergency stop device 5 that engages with the car guide rail 2 to make an emergency stop of the car 3 is attached to the lower portion of the car 3 . The emergency stop device 5 has a pair of brake pads (wedge members) 6 that are pressed against the car guide rail 2 by mechanical operation.

[0041] On the upper part of the hoistway 1, a drive device (hoist) 7 is arranged to lift the car 3 and the counterweight 4 up and down through the main steel rope. The drive device 7 has a drive pulley 8, a motor unit (not shown) that rotates the drive pull...

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Abstract

The invention provides an elevator device. In this elevator apparatus, the electronic safety controller can detect an abnormality of the electronic safety controller itself. In addition, when the electronic safety controller detects the abnormality of the electronic safety controller itself, it outputs the nearest floor stop command for stopping the car at the nearest floor to the elevator control part, and after outputting the nearest floor stop command, after a preset When the time has elapsed, an emergency stop command for emergency stopping of the car is output to the elevator control unit.

Description

technical field [0001] The present invention relates to an elevator apparatus using an electronic safety controller that detects an abnormality of the elevator based on a detection signal from a sensor. Background technique [0002] In the conventional elevator safety system, sensors and the like are connected to the bus nodes in the hoistway, the machine room and the car, and the information from the sensors and the like is sent to the safety controller via the bus nodes and the communication network bus (for example, referring to patent Literature 1). [0003] Patent Document 1: Japanese PCT Publication No. 2002-538061 [0004] In the conventional elevator apparatus as described above, since information is input from the sensor to the safety controller through the communication network, in order to ensure high reliability as a safety system, a communication network with a relatively high reliability is required, and the hardware constituting the communication network And...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B3/00B66B5/02
CPCB66B5/0093B66B5/027B66B5/0031
Inventor 松冈达雄
Owner MITSUBISHI ELECTRIC CORP
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