JP4992388B2 - Elevator seismic control operation device - Google Patents

Description

  The present invention relates to a seismic control operation device for an elevator that performs seismic control operation to move to a retreat floor without performing the nearest floor stop or door opening / closing operation if it can be confirmed that there are no passengers.

  In a conventional elevator, when an earthquake is detected by an earthquake detector, the operation stops for a certain time after stopping at the nearest floor. However, depending on the stop position of the elevator, the horizontal vibration of the rope resonates with the vibration of the building, which may cause a large roll of the rope and damage such as rope catching.

  In addition, as a conventional technology, in the control operation system that detects the occurrence of an earthquake while driving and controls the operation of the elevator, if the initial tremor in the earthquake is detected, the car can be moved from the middle floor of the building. Determine if the car is above or below, if the car is above the middle floor, move the car to the middle floor and pause, if the car is below the middle floor, move the car to the nearest 2. Description of the Related Art An elevator seismic control operation device is known that is stopped while moving to an intermediate floor after being stopped on a floor (see, for example, Patent Document 1).

JP-A-57-27878

  In the prior art described in Patent Document 1, the elevator that is running is stopped at the nearest floor, and after opening and closing the door for passenger eviction, the elevator moves to the middle floor and pauses. Similarly, for the stopped elevator, after performing the door opening / closing operation for expelling passengers, the elevator moves to the middle floor and stops. However, if the cage stays at a position where the rope and the building resonate for a long time, the rope swing will increase, so the rope swing will increase during the door opening and closing time, and even if you try to move to the middle floor There is a problem that the rope swing grows up to the danger of moving the elevator. Therefore, before the swaying of the rope increases, it is necessary to quickly move the car to a safe retreat floor where the swaying of the rope does not increase.

  The present invention was made to solve the above-described problems. In the seismic control operation, the presence or absence of passengers is confirmed, and if there are no passengers in the car, the nearest floor stop or door opening / closing operation is performed. It is an object of the present invention to provide a seismic control operation device for an elevator that performs a seismic control operation that moves to a safe evacuation floor that does not immediately increase the swing of the rope.

Earthquake control operation equipment of the elevator according to the present invention, when detecting the earthquake, if the elevator car is traveling in stopped at the nearest floor, close the door from the drop off passengers in the car to open the door While moving to the evacuation floor, if the elevator car is stopped, in the seismic control operation that opens the door and lowers the passenger in the car and then closes the door and moves to the evacuation floor, the passenger is in the car Passenger presence / absence confirmation means to confirm whether or not the elevator car is running, and if the passenger presence / absence confirmation means confirms that there are no passengers in the car, move to the retreat floor without stopping the nearest floor and opening / closing the door In addition, if the elevator car is stopped and the passenger presence confirmation means can confirm that there are no passengers in the car, it will immediately move to the retreat floor without opening and closing the door. And a stage can be confirmed that no passengers in the car by the passenger presence confirmation unit, and if the elevator car is traveling toward the retracted floor opposite direction, after an emergency stop, runs at a low speed to save floor Is.
In addition, when the passenger presence / absence confirmation means for confirming whether there are passengers in the elevator car and the passenger presence / absence confirmation means confirm that there are no passengers in the car, the traveling direction of the elevator car is affected by the swing of the rope. If it is in the same direction approaching the evacuation floor that does not increase, it will travel to this evacuation floor, and if it is in the opposite direction away from the evacuation floor, it will be equipped with evacuation floor movement means during earthquakes that will travel at a low speed to the evacuation floor after stopping is there.

  According to this invention, if it can be confirmed that there are no passengers in the car, the evacuation operation can be carried out on a safe evacuation floor where the swing of the rope does not increase. Normal operation can be resumed.

First, the operation of a conventional elevator seismic control operation apparatus as a premise of the present invention will be described. With reference to FIG. 3, the movement of the elevator after the occurrence of the earthquake will be described.
When an earthquake occurs and the earthquake detector operates (step S21), if the elevator car is running (step S22), it moves to the nearest floor and stops (step S23), and the door is opened (step S24). ), Expelling passengers (step S25). Thereafter, the door is closed (step S26), and the rope moves to a safe retreat floor where the swinging of the rope does not increase (step S27). When the elevator car is stopped, the door is opened (step S24), the passenger is driven out (step S25), the door is closed (step S26), and a safe retreat floor where the swing of the rope does not increase is obtained. Move (step S27).

  The behavior of the rope lateral amplitude in the case of a normal elevator will be described with reference to FIG. That is, on the nearest floor, when the rope resonates with the shaking of the building, the rope lateral amplitude increases with time. Therefore, there is a problem that during the door opening / closing operation, the rope is greatly shaken until it comes into contact with the equipment in the hoistway, and the rope may be caught during the retreat operation.

Embodiment 1 FIG.
FIG. 1 is a flow chart for explaining the operation of the elevator seismic control operation apparatus according to Embodiment 1 of the present invention, and FIG. 2 is the lateral amplitude and time of the rope of the elevator seismic control operation apparatus according to Embodiment 1 of the present invention. It is a characteristic view which shows the relationship.
When the earthquake detector detects the occurrence of an earthquake (step S1), whether the elevator car is running or stopped (step S2), whether there is a passenger in the car by the passenger presence / absence confirmation means. Confirm (steps S3-1 and S3-2). Here, confirmation of the presence or absence of a passenger can be detected using a scale device, heat detection, a monitoring camera, or the like. When the elevator car is running and there are passengers (step S3-1), as in the case of conventional elevators, the elevator car moves to the nearest floor and stops (step S4), and the door is opened (step S5). Eject (take down) (step S6). Thereafter, the door is closed (step S7), and it moves to a safe evacuation floor where the swing of the rope does not increase (step S8). When the elevator car is stopped and there are passengers (step S3-2), the door is opened (step S5) and the passengers are expelled (step S6), as in the conventional elevator. Close (step S7) and move to a safe retreat floor where the swinging of the rope does not increase (step S8).

  On the other hand, if the elevator car is traveling in step S2, if it can be confirmed in step S3-1 that there are no passengers in the car, the process proceeds to step S9, and the nearest floor is not stopped and the door opening / closing operation is not performed. If the direction is the same direction approaching the evacuation floor (step S10), the car reduces the traveling speed (step S11) and travels to the evacuation floor (step S8). Conversely, if the car travels in the opposite direction away from the evacuation floor at step S10, after the emergency stop (step S12), the car moves to the evacuation floor at low speed (step S13) (step S8). ). If the elevator car is stopped and there are no passengers in the car (step S3-2), the process proceeds to step S14, and the door opening / closing operation is not performed, and the vehicle is immediately moved to the retreat floor at low speed (step S15) (step S15). S8). The present invention is provided with an evacuation floor moving means as described above.

  The relationship between the lateral amplitude and time of the rope during this seismic control operation, that is, a typical example of rope swing will be described with reference to FIG. In FIG. 2, although the operation up to the nearest floor is performed, the nearest floor is not stopped, and the door is opened and closed continuously, the continuous operation is performed up to the retreat floor, and the retreat floor is quickly moved. In this case, as compared with the conventional case of FIG. 4, since the swing of the rope is small, that is, before the rope comes into contact with the hoistway device, the evacuation operation can be started, so that the evacuation operation can be safely performed Can do. Therefore, damage due to rope catching can be prevented, and the elevator can be returned early.

It is a flowchart for demonstrating operation | movement of the earthquake control operation apparatus of the elevator in Embodiment 1 of this invention. It is a characteristic view which shows the relationship between the rope lateral amplitude and time of the earthquake seismic control operation apparatus of Embodiment 1 of this invention. It is a flowchart for demonstrating operation | movement of the seismic control operation apparatus of the conventional elevator used as the premise of this invention. It is a characteristic view which shows the relationship between the rope lateral amplitude and time of the conventional earthquake seismic control operation device of the elevator which is the premise of the present invention.

Explanation of symbols

S3-1, S3-2 Detection of passenger presence S8 Retreat floor movement S9 Stop nearest floor and do not open / close door S10 Detection in same direction as retreat floor S11 Decrease travel speed S13, S15 Low speed travel S14 Do not open / close door

Claims (3)

When the occurrence of an earthquake is detected, if the elevator car is running, it stops at the nearest floor, opens the door, lowers passengers in the car, closes the door, moves to the evacuation floor, and the elevator car is stopped If there is an earthquake control operation device of an elevator that performs earthquake control operation that opens the door and lowers the passenger in the car and then closes the door and moves to the evacuation floor,
Passenger presence / absence confirmation means for confirming whether or not there are passengers in the car;
If the elevator car is running and the passenger presence / absence confirmation means can confirm that there are no passengers in the car, the elevator car moves to the retreat floor without stopping and opening / closing the door, and the elevator car is stopped and If the passenger presence / absence confirmation means can confirm that there are no passengers in the car, the evacuation floor moving means during an earthquake moves immediately to the evacuation floor without opening and closing the door ,
If there is no passenger in the car by the passenger presence confirmation means, and if the elevator car is traveling in the opposite direction to the evacuation floor, it travels at a low speed to the evacuation floor after an emergency stop. Elevator seismic control operation device.   The elevator operation control system for an earthquake according to claim 1, wherein the elevator car travels to the retreat floor without stopping if the elevator car is traveling and traveling in the same direction as the retreat floor. Passenger presence / absence confirmation means for confirming whether there are passengers in the elevator car,
When it is confirmed by the passenger presence / absence confirmation means that there are no passengers in the car, if the traveling direction of the elevator car is the same direction approaching the retreat floor where the swing of the rope does not increase, travel to this retreat floor, If it is in the opposite direction away from the evacuation floor, the evacuation floor moving means during an earthquake that travels at a low speed to the evacuation floor after stopping,
An elevator seismic control operation device characterized by comprising:

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