JPS606060Y2 - Earthquake rescue operation device for elevators - Google Patents

Description

[Detailed description of the invention] This invention relates to an operating device for rescuing passengers in an elevator when an earthquake occurs.

An earthquake control system for elevators with express sections has been proposed that, during an earthquake, if the car is outside the express section, it will land on the nearest floor and stop, but if the car is within the express section, it will stop immediately. There is.

In order to rescue passengers in a car that has suddenly stopped in an express section, an elevator manager or the like has been designed to drive the car to an appropriate rescue floor, such as the bottom floor.

Hereinafter, a conventional earthquake rescue operation device will be explained with reference to FIGS. 1 and 2.

In the figure, 1 is the landing on the bottom floor, 2 is the landing on the top floor, 3 is the car that goes up and down between the landings 1 and 2 on the bottom floor and the top floor, that is, the lifting process S, and 4 is the car that balances with car 3. The main rope that suspends the weight 5 and is wrapped around the drive machine 6, 7 is the position where the car 3 and the counterweight 5 rub against each other in the middle of the lifting stroke S, as shown by chain lines in FIG. 1, and 8 is the elevator door. 9 is a rescue operation command switch, 10 is a rescue operation button that also functions as a door close button for car 3, etc.; 1
1 is an earthquake occurrence signal that is emitted when an earthquake is detected, 1
2 is an AND gate, 13 is an OR gate, 14 is a descending operation signal that is issued when car 3 is operated downward in normal times without earthquakes, and 15 is a descending operation signal that is issued when car 3 is operated downward regardless of the situation. It is.

That is, when an earthquake occurs and the car 3 is stopped by another device (not shown), the rescue operation command switch 9 is closed by the elevator manager.

On the other hand, since the earthquake occurrence signal 11 is of course outputting at this time, the lock switch is closed in this case, and if the passenger in the car 3 presses the rescue operation button 10 after being contacted by the administrator, the rescue operation starts. The AND gate 12 outputs an output only while the button 10 is pressed, and the descending operation signal 15 is generated through the OR gate 13.

When the rescue operation button 10 is released in the section where the door of the landing 1 on the lowest floor is opened, the door opens and the passengers inside the car 3 are rescued.

However, in the event of an earthquake, whether or not the elevator manager can reliably close the rescue operation command switch 9 and whether the passengers in the car 3 can calmly operate the rescue operation button 10 is a matter of concern. Considering his psychological state, this is highly suspicious.

Furthermore, if the counterweight 5 may deviate from the guide rail due to an earthquake, and if the stopping position of the car 3 due to the earthquake is above the cross-rubbing position 7 in FIG. There is a danger that the basket 3 will collide with the counterweight 5 when the counterweight is lifted.

Furthermore, when the car 3 is driven upward when the stop position of the car 3 is below the cross-crossing position 7, there is a risk similar to that described above.

This invention solves the above-mentioned drawbacks by automatically carrying out a rescue operation to move the cars and counterweights that have stopped due to an earthquake away from each other, and by automatically opening the stop door at the landing. The purpose is to quickly and reliably rescue passengers inside.

An embodiment of this invention will be described below with reference to FIGS. 1 and 3.

In FIG. 3, 16 is a car top position signal that is emitted when the car 3 is above the cross-crossing position 7, 17 is a car middle position signal that is generated when the car 3 is at the cross-crossing position 7, and 1
8 Car lower position signal emitted when car 3 is below cross-rubbing position 7, 19 is car 3 during normal times without earthquakes.
20 is a signal issued when 3 is operated upward regardless of the situation, 12A
, 12B, 12C are AND gates, 13A to 1
3D is an OR gate, 21 is a stop signal issued when car 3 stops, 22 is a door-openable section signal issued when a car is in the door-opening section of the top floor or the bottom floor, 2
3 is a memory that is set when input to the S side, memorizes it, and emits an output, and is reset when input to the R side, loses its memory and does not emit an output. 24 is a memory that opens the door during normal times when there is no earthquake. Reference numeral 25 indicates a door open signal that is issued when the door is opened, regardless of the situation.

That is, when an earthquake occurs, when the car 3 is stopped in the middle of the lifting stroke S by another device (not shown), the stop signal 31
is emitted and input to the S side of the memory 23 and stored, so the memory 23 emits an output.

Moreover, at this time, the earthquake occurrence signal 11 is of course emitting an output.

In this case, if the lock switch contact 8 is closed and the car 3 is stopped at the cross-crossing position 7 or above, either the car top position signal 16 or the car middle position signal 17 is output. A is issued through OR Age-13G
The signal is sent to the ND gate 12B.

Here, AND gate 12B issues an output, and OR gate 1
A lift operation signal 20 is issued through 3B.

Then, the car 3 is driven upward, and when it comes to the door-openable section of the landing 2 on the top floor, the door-openable section signal 22 is sent to the memory 23.
Since the input signal is input to the R side, the memory 23 is reset, the memory is erased, and the ascending operation is stopped.

At the same time, an output from the AND gate 12C is issued, and a door opening signal 25 is issued via the OR gate 13D, so that the door opens and the passengers are rescued from the landing 2 on the top floor.

Furthermore, if the position where the car 3 has stopped due to an earthquake is below the cross-crossing position 7, a car bottom position signal 18 is issued. As in the upper case, the AND gate 12A produces an output, and the descending operation signal 15 is produced through the OR gate 13A.

Passengers were then rescued from landing 1 on the bottom floor.

In short, in this embodiment, the car 3 that has stopped due to an earthquake is automatically rescued in a direction away from the counterweight 5, and the car 3 is automatically placed on a suitable landing in that direction, and the door is opened. This is how it was done.

Therefore, regardless of the condition of the elevator operator and the passengers in car 3 when an earthquake occurs, the
Moreover, the rescue operation of the car 3 can be carried out safely and quickly.

Further, the car 3 being operated for rescue does not rub against the counterweight 5, and even if the counterweight 5 deviates from the guide rail due to an earthquake, there is no risk of the car 3 colliding.

In addition, in this embodiment, it is clear that the above effect can be obtained regardless of whether or not there is an express section in the ascending/descending stroke S, and even if the ascending/descending stroke S corresponds to an appropriate distance between floors. It is.

Furthermore, although the landings 1 and 2 on the top and bottom floors have been described as rescue floors, the present invention is not limited to this, and they may be located on appropriate floors above or below the position of the car 3 that stopped due to the earthquake.

That is, the door-openable section signal 22 of the floor selected as the rescue floor other than the top floor and the bottom floor may be input to the AND gate 12C and the memory 23.

Also, instead of detecting the position of car 3, counterweight 5
The position may be detected.

Further, since the car top position signal 10 and the car bottom position signal 18 are in a contradictory relationship with each other, either one of the signals may be used.

For example, if only the car bottom position signal 18 is used, the same effect can be achieved by using its negative signal as the car top position signal 16.

As explained above, this invention detects the stop position of the car due to an earthquake, and automatically carries out a rescue operation by opening the door of the car at a stop in a direction that moves the car away from the counterweight.

This ensures that a car that has stopped at the time of an earthquake can be rescued and passengers can be rescued quickly.

Further, since no special device for automatically stopping the car is required, it can be constructed economically.

[Brief explanation of the drawing]

Figure 1 is a conceptual diagram of an elevator, Figure 2 is a logic circuit diagram showing a conventional elevator rescue operation system during an earthquake, and Figure 3 is a logic circuit diagram showing an embodiment of an elevator earthquake rescue operation system according to this invention. It is a diagram. 1... Bottom floor landing, 2... Top floor beam, 3... Car, 5... Counterweight, 7... ...Position of misalignment, 8...Lock switch contact, 9...Rescue operation switch, 10
... Rescue operation button, 11 ... Earthquake occurrence signal, 12A, 12B, 12G ... AND gate, 13A-13D ... OR gate, 15.
...Downward operation signal, 16...Car upper position signal when the car is above the cross-crossing position, 17...
・・Cage middle position signal when the cars are in a mutually rubbing position, 18・
... Car lower position signal when the car is below the cross-rubbing position, 20 ... Rising operation signal, 31 ...
... Stop signal, 22 ... Door opening possible section signal, 2
3...Memory 25...μP open signal. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] In an elevator configured to detect the occurrence of an earthquake and immediately stop the car and counterweight, a stop position detection device for detecting the stop position of the car or counterweight, and a stop position detection device for detecting the stop position of the car or counterweight; a plurality of position signal generating means according to the stop position of the car with respect to the mutually rubbing position; a driving device that automatically operates the car and the counterweight in a direction to move away from each other in accordance with the output signal of the signal generating means; A door-opening section detection device that generates a door-opening section signal when the car reaches a door-opening section on the rescue floor, and automatically stopping the car in response to the door-opening section signal from the door-opening section detecting device. An elevator rescue operation device during an earthquake, characterized in that it is equipped with a stop door opening device for opening the door.