JPH1017233A - Method and device for emergency operation of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an elevator car, which has eventually stopped in any inter- story place owing to the actuation of a safety device while the elevator is in evacuating operation, to travel to a safe floor. SOLUTION: Emergency operating devices 9 are installed in the undermost floor, evacuation floor, the anti-disaster center of a building, etc. If an elevator stops in any inter-story place owing to the actuation of a safety device, the operator turns a changeover switch 9A and changes over to manual operation. Then a travel button 9B and a rise and a fall button 9C and 9D are turned simultaneously to try moving the car. If the car still remains out of traveling, the first to third shortcircuit switches 9E-9G are turned one after another, and the sets of contacts for checking the traveling conditions constituting the safety device are shortcircuited one by one.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for operating an elevator in an emergency such as a fire or an earthquake.

[0002]

2. Description of the Related Art Today, elevators are indispensable for vertical transportation in buildings. However, in normal times, elevators that can operate comfortably in response to calls from the landing button and the destination button in the car also shift to fire control operation, earthquake control operation, and other control operations in the event of an unexpected situation such as a fire or earthquake. And will not operate as desired by passengers.

[0003] In recent years, many high-rise buildings have appeared,
In an emergency such as an earthquake, the elevators cannot be used freely, so how to escape from the building, especially the disabled, has become a problem. One solution is, for example, "Elevator World" Sept.
ember 1995 A "multipurpose elevator" has been proposed on pages 100-108.

[0004] Elevators for this purpose include fire,
It is desired that even if an event such as an earthquake occurs, the operation be continued as it is and the residents be evacuated. For this purpose, the elevators are to be taken into full consideration such as isolation by fire doors and measures against water during fire extinguishing activities.

[0005]

In the above-described conventional emergency operation device for an elevator, measures such as fire prevention and waterproofing are taken into consideration. However, during an evacuation operation, a safety device or the like may operate. If the car stops between the floors, there is a problem that passengers cannot be rescued and a secondary disaster may occur.

The present invention has been made in order to solve the above-mentioned problem. Even if a safety device or the like operates during an evacuation operation and a car stops between floors, the car can be safely protected. It is an object of the present invention to provide an elevator emergency driving device and a driving method thereof that can be driven to a floor.

[0007]

According to a first aspect of the present invention, there is provided an elevator emergency driving device which includes a travel permitting device for permitting a car to travel if there is no abnormality in a traveling condition checking contact group, and A short-circuit device for partially shorting the contact group.

The emergency operation device for an elevator according to the second invention is the one according to the first invention, wherein a switching device for switching between automatic operation and manual operation by manual operation, and after switching to manual operation by this switching device. And a manual driving device for issuing a command to run the car.

The emergency operation device for an elevator according to the third invention is the elevator operation device according to the first or second invention, wherein when the smoke detector or the earthquake detector is operating, the short-circuit device is manually operated. The running condition check contact group is partially short-circuited.

According to a fourth aspect of the present invention, there is provided an emergency operation device for an elevator according to the first to third aspects, wherein an alarm is provided for alarming when the car stops outside a door openable area on the floor. It is a thing.

An emergency operation device for an elevator according to a fifth invention is the elevator operation device according to the first to fourth invention, wherein the short-circuit device, the switching device and the manual operation device are installed on a floor such as an evacuation floor. is there.

An emergency operation device for an elevator according to a sixth invention is the elevator operation device according to the first to fourth inventions, wherein the short-circuit device, the switching device, and the manual operation device are installed in a disaster prevention center of a building.

[0013] In the emergency operation method for an elevator according to a seventh aspect of the present invention, when the car stops between floors, a switching step of switching to manual operation by a switching device, and after executing the switching step, operating a travel button and a direction button. A test operation step of trying to run the car, and a short-circuit step of sequentially operating a plurality of short-circuit devices to partially short-circuit the traveling condition confirmation contact group sequentially when the car does not run even in the test operation step. It is a thing.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 to 3 show an embodiment of the first to fourth and seventh aspects of the present invention. FIG. 1 is an overall configuration diagram, FIG. 2 is a circuit diagram of an emergency operating device, and FIG. It is a circuit diagram, and the same code | symbol shows the same part in a figure.

1 and 2, reference numeral 1 denotes an elevator control device, 2 denotes a hoisting motor connected to the control device 1, 3 denotes a sheave driven by the electric motor 2, and 4 denotes a mesh sheave 3.
5 is a car connected to one end of the main cable 4, 5A is a car operation panel, 5B is a car door control device for controlling opening and closing of a car door (not shown), and 6 is a car door control device. A counterweight 7 is connected to the other end of the cable 4, and 7 is a moving cable suspended between the control device 1 and the car 5 for transmitting and receiving control signals.

Reference numeral 8 denotes a landing button installed at the landing, and landing buttons 8A, 8B... 8M, 8 from the lowest floor to the top floor.
N. Reference numeral 9 denotes an emergency operation device installed on the lowest floor, and an automatic operation / manual operation switch 9A,
It has a run button 9B, an up button 9C, a down button 9D, and first to third short-circuit switches 9E to 9G. Here, the traveling button 9B and the up / down buttons 9C and 9D constitute a manual driving device.

In FIG. 3, P and N are DC power supplies, 10 is an over-travel limit switch group, and 10A is a lowest-floor over-travel limit switch that opens when the car 5 passes the lowest floor.
Is a top-floor over-limit switch that opens when the top floor is passed too far, 11 is a door-close detection contact group that opens when the landing door is open and closes when it is fully closed, and 11A is a door-close detection switch on the bottom floor. A contact point, 11B is a door closing detection contact point on the first floor of the lowest floor, 11N is a door closing detection contact point on the top floor, and 12 is a door closing detection that opens when the car door is open and closes when the car door is fully closed. It is a contact point. Here, the contact groups 10 to 12 constitute a traveling condition confirmation contact group.

Reference numeral 13 denotes a traveling permission relay for confirming traveling conditions when energized, 13a denotes a normally closed contact thereof, 14 denotes a group of changeover switches for switching between automatic operation and manual operation, and 14A is installed in the car 5. A changeover switch, 14B is a changeover switch installed on the car 5, 14C is a changeover switch installed in the machine room, 15 is an automatic operation that commands automatic operation when energized, and manual operation when deenergized. Relay, 15
a is a normally closed contact, 16 is a smoke detector contact that closes when smoke is detected, and 17 is an earthquake detector contact that closes when an earthquake is detected.

Reference numeral 18 denotes a manual ascending operation relay for instructing a manual ascending operation when energized, reference numerals 18a to 18c denote normally open contacts thereof, and 19, a manual ascending operation relay for instructing a manual ascending operation when energized. 19a to 19c are the normally open contacts, 20
A door openable area detector contact which opens when the car 5 is in the door openable area of the floor, and 21 is an alarm such as a buzzer.

Next, the operation of this embodiment will be described.
Now, it is assumed that the automatic operation / manual operation changeover switch groups 14 and 9A are all closed, and the automatic operation relay 15 is energized to perform automatic operation. In addition, the automatic operation relay 15
The contact 15a is open. When the landing button 8 or the destination button (not shown) of the in-car operation panel 5A is operated to register the call, a traveling command is output. When the overtravel limit switch group 10 is all closed, and the door closing is completed, and the door closing detection contact group 11 of the landing door and the door closing detection contact 12 of the car door are all closed, the travel permission relay 13 is energized, and the car 5 runs according to the above-mentioned call. Further, the contact 13a is opened.

Here, when a fire occurs in the building and the smoke detector detects smoke, the smoke detector contact 16 is closed. The car 5 starts the evacuation operation by the operation of the smoke detector.
If a contact failure occurs at the door closing detection contact 12 of the car during the evacuation operation, the travel permission relay 13 is deenergized and the contact 13a is closed. Then, it is assumed that the car 5 stops between the floors. Since the car 5 is stopped outside the door openable area, the door openable area detector contact 20 is closed.

As a result, the alarm 21 operates in the circuit of P-20-13a-21-N. By the operation of the alarm 21, the staff in the building senses the abnormality of the elevator and operates the emergency operating device 9 installed on the lowest floor to try to rescue the passengers. First, when the automatic operation / manual operation switch 9A of the emergency operating device 9 is opened, the automatic operation relay 15 is opened.
Is deenergized and switched to manual operation, and the contact 15a is closed.

Next, the traveling button 9B and the lowering button 9D are simultaneously operated to attempt a lowering operation. With this, P-15
Although the manual lowering operation relay 19 is energized by the circuit of a-9B-16-9D-19-N, the traveling permission relay 13 is energized because the door closing detection contact 12 of the car door has a poor contact. Not done. Therefore, the car 5 cannot be operated. Therefore, even if the first short-circuit switch 9E is turned on and the traveling button 9B and the down button 9D are simultaneously operated again to attempt the down operation, the car 5 cannot be operated in the same manner.

The first short-circuit switch 9E is opened, the second short-circuit switch 9F is turned on, and both buttons 9B and 9D are again turned on.
, The car 5 cannot be operated in the same manner even if the user attempts to perform the descent operation. Next, the second short-circuit switch 9F
Is released, the third short-circuit switch 9G is turned on, and both buttons 9B and 9D are simultaneously operated again, whereby P-10-11
-19c-9G-13-N circuit allows travel permission relay 13
, The car 5 can be manually lowered. That is, the manual lowering operation relay 19 is energized only while the lowering button 9D is operated, and the car 5 is driven at a low speed to a safe floor to rescue the passengers.

In the above description, the case where the car 5 is operated to descend is described.
If B and the up button 9C are operated at the same time, the operation can be performed by energizing the manual up operation relay 18. When an earthquake occurs, the earthquake sensor contact 17 is closed, and rescue operation can be performed as in the case of a fire. When the lowermost or uppermost floor overrun limit switches 10A and 10B are in poor contact, the rescue operation can be performed by turning on the first short-circuit switch 9E.

If the door closing detection contact 11 of the landing door becomes in poor contact, the rescue operation can be performed by turning on the second short-circuit switch 9F. The rescue operation can be performed in the same procedure even when another traveling possibility confirmation device, for example, an overspeed detection contact of the governor becomes defective.

As described above, the limit switch group 10 and the door close detection contact groups 11, 12 are partially short-circuited by the first to third short-circuit switches 9E to 9G. Even if the car 5 is stopped between floors due to poor contact between the contact 10 and the contact groups 11 and 12,
The car 5 can be run. After switching to the manual operation by the automatic operation / manual operation switch 9A, the traveling button 9B and the up / down button 9C,
Since the car 5 is operated by operating the 9D, the car 5 can be manually driven to a safe floor by the operation of the attendant.

The first to third short-circuit switches 9E to 9
Since G is effective in the event of a fire or earthquake, it is possible to rescue the passengers in the car 5 in an emergency and prevent a secondary disaster from occurring. Further, when the car 5 stops outside the door openable area on the floor, the alarm 21 is operated, so that the occurrence of the abnormality can be notified to the attendant, and the response of the passenger can be promptly requested. Becomes

Embodiment 2 This shows one embodiment of the fifth and sixth inventions of the present invention, and shares FIGS. 1 to 3. In the first embodiment, the emergency operation device 9 is installed on the lowest floor. In the second embodiment, the emergency operation device 9 is installed on an evacuation floor other than the lowest floor, or added. It will also be installed at the building's disaster prevention center. Such an evacuation floor or disaster prevention center has a lot of staff patrols and resident personnel, so that it is possible to quickly cope with an abnormal situation.

[0030]

As described above, according to the first aspect of the present invention, the contact group for confirming the traveling condition is partially short-circuited by the manual operation. The car can be run even when the car stops.

Further, in the second invention, a command to run the car is issued after switching to the manual operation.
The car can be manually operated to a safe floor by the operation of the staff.

According to the third aspect of the present invention, when the smoke detector or the earthquake detector is operating, when the short-circuit device is manually operated, the traveling condition confirmation contact group is partially short-circuited. The passengers inside can be rescued, and the occurrence of a secondary disaster can be prevented.

According to the fourth aspect of the present invention, when the car stops outside the door openable area on the floor, the warning is issued, so that the occurrence of the abnormality can be notified to the attendant, and a response to the passenger rescue is required promptly. be able to.

In the fifth invention, the short-circuit device, the switching device, and the manual operation device are installed on the evacuation floor, and in the sixth invention, the elevator is similarly installed in the disaster prevention center. can do.

According to the seventh aspect of the present invention, when the car is stopped between floors, the mode is switched to the manual operation, and then the traveling button and the direction button are operated to try traveling the car. Since the short-circuit device is sequentially operated to partially short-circuit the traveling condition checking contact group sequentially,
It has the same effect as the invention.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment and a second embodiment of the present invention.

FIG. 2 is a circuit diagram of the emergency operating device of FIG. 1;

FIG. 3 is an overall circuit diagram showing the first and second embodiments of the present invention.

[Explanation of symbols]

5 car, 9 emergency operation device, 9A switching device (automatic operation / manual operation switching switch), 9B manual operation device (travel button), 9C manual operation device (up button), 9D
Manual operation device (down button), 9E short-circuit device (1st
Short-circuit switch), 9F short-circuit device (second short-circuit switch), 9G short-circuit device (third short-circuit switch), 10G
Driving condition check contact group (overrun limit switch group), 11
Driving condition confirmation contact group (landing door closed detection contact), 12 traveling condition confirmation contact group (car door closed detection contact), 13 traveling permission device (travel permission relay), 15 automatic operation relay, 16
Smoke detector contact, 17 Earthquake detector contact, 18 Manual ascending operation relay, 19 Manual ascending operation relay, 20 Door openable area detector contact, 21 Alarm.

Claims (7)

[Claims] 1. A driving condition confirmation contact group, which is connected through
An emergency operation device for an elevator, comprising: a travel permitting device that permits the car to travel if the contact group has no abnormality; and a short-circuit device that partially short-circuits the contact group by manual operation. 2. A switching device for switching between automatic operation and manual operation by manual operation, and a manual driving device for issuing a command to drive the car after switching to the manual operation by the switching device. The emergency operation device for an elevator according to claim 1, wherein 3. The short-circuit device according to claim 1, wherein when the smoke detector or the earthquake detector is operated, the driving condition confirmation contact group is partially short-circuited when operated manually. The elevator emergency driving device according to claim 2. 4. An elevator according to claim 1, further comprising an alarm for alarming when the car stops outside the door openable area on the floor. Driving device. 5. The emergency operation device for an elevator according to claim 1, wherein the short-circuit device, the switching device, and the manual operation device are installed on a floor such as an evacuation floor. 6. The emergency operation device for an elevator according to claim 1, wherein the short-circuit device, the switching device, and the manual operation device are installed in a disaster prevention center of the building. 7. A switching step of switching to manual operation by the switching device when the car stops between floors, a test operation step of operating the traveling button and the direction button after execution of the switching step to attempt traveling of the car, and An emergency operation method for an elevator, comprising a step of sequentially operating a plurality of short-circuit devices to partially short-circuit a group of travel condition checking contacts when the car does not travel even in the test operation step.