JP4045172B2 - Elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator apparatus, and more particularly, to an elevator fire prevention apparatus provided with means for preventing the flow of fire or smoke between a hoistway and a landing during a fire.
[0002]
[Prior art]
Conventionally, an elevator apparatus provided with a fireproof smokeproof shutter that closes between a hoistway and a landing during a fire has been proposed (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2001-276243 A (FIG. 6)
[0004]
[Problems to be solved by the invention]
However, in the elevator apparatus of Patent Document 1 described above, the fireproof smoke proof shutter is driven all at once when a fire occurs. For this reason, if there is a passenger in the car at the time of the fire, the fire shutter is already closed even if the car stops emergencyly on the designated floor, and the passenger cannot leave the car. There was a risk of it occurring.
[0005]
Accordingly, an object of the present invention is to provide an elevator apparatus that allows a user who was in a car at the time of a fire to evacuate safely.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, in the present invention, fire prevention and smoke prevention means for preventing fire or smoke from flowing between a hoistway provided in a multi-floor building and a landing, and the fire prevention and smoke prevention In an elevator apparatus equipped with a drive device for opening and closing means, an emergency power supply device provided in the building, a car control means for stopping the car in the event of a fire, and confirming that there are no passengers in the car And a drive control means for issuing a close command to the drive device as soon as it is confirmed that there is no user, and is driven by the emergency power supply for each drive device on each floor at the time of a power failure and, wherein the final closing of fire smoke means all floors.
[0007]
According to the configuration described above, in the event of a fire, a stop command is issued to the car, and after confirming that the car has stopped on the predetermined floor, the fire and smoke protection means is closed, so that the inside of the car is It is possible to prevent the occurrence of a situation in which a passenger who is in a car is trapped in the car.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an elevator apparatus of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 is a longitudinal side view of an entire building including an elevator apparatus according to an embodiment of the present invention, and FIG. 2 is a flowchart showing an operation example of the present invention.
[0010]
In FIG. 1, a hoistway 2 for an elevator is provided on the side of a building 1 composed of a fifth floor. The elevator machine room 3 provided on the roof of the building 1 is provided with an elevator drive device (not shown) and a control device 4. A car 5 that moves up and down in the hoistway 2 is connected to a suspension weight 8 via a main measure 7 wound around a drive sheave 6. Next, a landing door 9 is provided at the elevator entrance between the landing 10 and the hoistway 2 on each floor, and the landing side of the landing door 9 is fired between the hoistway 2 and the landing 10 in the event of a fire. Or the fire prevention smoke prevention shutter 11 which is a fire prevention smoke prevention means which prevents that smoke distribute | circulates is provided. The fire and smoke proof shutter 11 is configured to be opened and closed by a shutter driving device 12. Furthermore, the emergency power supply device 13 provided on the roof of the building 1 is composed of a battery, a generator, and the like, and drives the shutter drive device 12 provided on each floor during a power failure.
[0011]
In addition, information detected by the fire detector 14 provided on each floor is sent to the car control means in the control device 4 through the communication line, and the car control means pauses the car 5 using the detection information. The floor to be specified is specified, and the car 5 is instructed to stop on the floor.
[0012]
Further, when the stop of the car 5 is confirmed by the stop detection means for detecting that the car 5 is stopped, the drive device control means that has received the stop information issues a close command to the shutter drive device 12. put out.
[0013]
Here, the drive device control means includes detection information storage means for receiving and storing information detected by the fire detector 14, a fire floor specifying means for specifying a fire floor based on the detection information, and this fire floor. Shutter command means for issuing a close command to each shutter drive device 12 so as to close sequentially from the fire prevention smoke-proof shutter 11 of the floor close to the fire floor among the floors above the floor specified by the specifying means. Yes.
[0014]
The operation of the present invention will be described below with reference to FIG. First, the fire detector 14 provided on each floor in the building 1 determines whether or not there is a fire (procedure S1). Here, in a state where no fire is detected, the elevator is operating normally. On the other hand, when a fire is detected, the car control means stops the car 5 on a predetermined floor (step S2). Next, it is determined by the stop detection means whether or not the car 5 has stopped at the predetermined floor (step S3). When the stoppage is confirmed, the driving device control means issues a closing command to the shutter driving device 12, the entrance / exit is closed by the fire / smoke / shutter 11 (step S 4), and flame and smoke enter the hoistway 2. To prevent.
[0015]
As described above, in the event of a fire, a stop command was issued to the car, and after confirming that the car was stopped on the designated floor, the fire and smoke protection measures were closed, so the car was in the car at the time of the fire. It is possible to prevent the occurrence of a situation where the passenger is trapped in the car.
[0016]
In the present embodiment, the fire and smoke prevention shutters 11 are closed simultaneously after the car 5 is stopped. For example, when the fire floor is the floor 3, the floor 4, the floor 5, the floor 2, it may be closed sequentially with the floor 1. Since the shutter driving devices 12 on all the floors are not driven all at once, but one shutter driving device on each floor is driven, it is possible to prevent a situation where the capacity of the emergency power supply 13 is insufficient. That is, even if the power supply capacity is small enough to drive one shutter driving device, the fire and smoke / shutter shutters 11 of all floors can be closed finally. The reason why the upper floor 4 and the lower floor 5 are followed by the lower floor 2 is that the flame and smoke move upward.
[0017]
Further, after confirming that the car 5 is stopped, the drive control means controls so that the fire and smoke prevention shutter 11 is closed after a certain period of time, thereby ensuring sufficient time for the passenger to leave the car 5. You can also In addition, after the car 5 is paused, it may be controlled so that the fire and smoke / shutter 11 is closed when there is no operation from the car for a certain period of time. Of course, as soon as it is confirmed that there is no passenger by monitoring the inside of the car, the fire and smoke prevention shutter 11 may be controlled to close.
[0018]
【The invention's effect】
According to the present invention, it is possible to prevent the occurrence of a situation in which a customer who was in a car at the time of a fire or the like is trapped in the car.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of an entire building including an elevator apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing an operation example of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Building, 2 ... Hoistway, 5 ... Car, 9 ... Landing door, 10 ... Landing, 11 ... Fire and smoke prevention shutter, 12 ... Shutter drive device, 13 ... Emergency power supply device, 14 ... Fire detector,

Claims (1)

In an elevator apparatus equipped with a fire prevention and smoke prevention means for preventing the flow of fire or smoke between a hoistway provided in a building consisting of a plurality of floors and a landing, and a drive device for opening and closing the fire prevention smoke prevention means, The emergency power supply device provided in the building, the car control means for stopping the car in the event of a fire, the means for confirming that there are no users in the car, and the means that there are no users Drive unit control means for issuing a closing command to the drive unit as soon as it is confirmed, and is driven by the emergency power supply unit for each drive unit on each floor at the time of a power failure, and finally fire prevention and smoke prevention means for all floors The elevator apparatus characterized by closing.

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