JPS586671B2 - elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an operating device for rescuing passengers in an elevator car in the event of an emergency such as an earthquake.

Elevators installed in high-rise buildings provide equal service to upper and lower floors. For example, elevators for upper floors do not have landings on the floors between the ground floor and the upper floors. The line runs directly from the train to the upper floors (hereinafter this section is referred to as the express section).

) If an earthquake occurs while a car is running on this express section, the car is immediately stopped for safety reasons.

This is because an earthquake detection switch installed at an appropriate location in a building emits an output when it detects an earthquake larger than a predetermined earthquake, and this output turns off the control circuit.

After the car has stopped, the rescue operation switch on the control panel located in the attendant's room is opened, and the passengers inside the car are asked to press the appropriate push button (hereinafter referred to as the low-speed operation button) on the car operation panel.

) to broadcast. When a passenger presses the designated low-speed operation button, the car travels to a predetermined evacuation floor at low speed for as long as the button is pressed.

If you let go of the button, the basket will stop.

Therefore, when the car reaches the range where the door can be opened, that is, the landing door facing the landing can also be opened, if you release your hand from the button, the car door and the landing door will open.
Passengers are rescued.

However, it should be assumed that ordinary passengers rarely operate an elevator manually, and therefore it is extremely difficult to accurately stop the car within a range where the door can be opened.

This invention is intended to improve the above-mentioned drawbacks. Even ordinary passengers without experience in manually operating an elevator can operate a car that has stopped between floors during an earthquake, and can accurately stop the car within the range where the door can be opened. The purpose of the present invention is to provide an emergency operation device for an elevator that allows escape from the elevator.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is the output signal of the earthquake detection switch that is emitted when an earthquake of a predetermined seismic intensity or higher is detected, 2 is the signal that is emitted when the rescue operation switch mentioned above is closed, and 3 is the signal that is emitted when the car is running safely. 4 is the low-speed operation button described above; 5 is a door opening range detection device that outputs an output when detecting the door opening range; 6, 7, 8;
is an AND gate, 10 and 15 are NAND gates, 12 is a low speed running signal that instructs the car to run at a low speed,
Reference numeral 13 is a door open signal that instructs the car door to be opened.

Now, suppose that an earthquake occurs while the car is traveling in the express section, the car stops, and the rescue operation switch is closed.

At this point, once it is confirmed that the car is safe to run, signals 1 to 3 are
becomes "l", and all inputs of AND gate 6 are "1"
Therefore, output is generated.

When the passenger presses the low-speed operation button 4, the output of the NAND gate 15 is "1" because the car has not reached the range where the door can be opened.
”, all inputs to the AND gate 1 become “1”, and the low speed running signal 12 is issued.

Therefore, the car starts running at low speed. When the car reaches the range where the door can be opened, the door opening range detection device 5 outputs an output, so the output of the NAND gate 15 becomes "0", and the AND
Since the output of the gate 7 becomes "0", the car stops even if the passenger continues to press the low-speed operation button 4.

At the same time, the output of the AND gate 8 becomes "1", so the output is generated, the door open signal 13 is issued, the car door and the landing door are opened, and the passenger can escape from the car.

As explained above, in the event of an emergency such as an earthquake, the present invention allows the car to run at low speed by operating a button inside the car, and automatically stops the car when the car reaches the range where the door can be opened. The door to the landing is designed to open automatically.

As a result, even ordinary passengers with no experience in manually operating an elevator can automatically stop the car within the range where the door can be opened, and then open the door, with just a simple button operation. You can escape safely and quickly.

[Brief explanation of the drawing]

The figure is a logic circuit diagram showing an embodiment of an elevator emergency operation system according to the present invention. 1...Earthquake detection signal, 2...Rescue operation signal, 3...Driving safety confirmation signal, 4...
・Low speed operation button, 5...Door opening range detection device,
6-9...AND gate, 10, 11...
...NAND gate, 12...Low speed running signal,
13...Door open signal, 14...Indicator light,
15...NAND gate. In the drawings, the same or corresponding parts are indicated by the same reference numerals.

Claims (1)

[Claims] 1. In a device that operates a car by operating a button inside the car in the event of an emergency such as an earthquake, a stop device that operates to stop the door when the car reaches the range where the door can be opened; when this stop device is activated, the above An emergency operation device for an elevator, characterized in that it is equipped with a forced door opening device that opens the door even if a passenger in the car presses the button.