JP4012802B2 - Elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator apparatus, and more particularly, to an elevator 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 in the event of a fire has been proposed (for example, see 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, when an emergency power supply device is provided in the building and the shutter is driven using this power supply, there is a risk that the power supply capacity is insufficient and cannot be driven.
[0005]
Accordingly, an object of the present invention is to provide an elevator apparatus that does not cause a problem that it cannot be driven due to insufficient power capacity of the emergency power supply apparatus.
[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 comprising a drive device for opening and closing means and an emergency power supply device as a power source for the drive device, when the emergency power supply device is activated due to the occurrence of a fire, after closing the fire prevention and smoke prevention means on the fire occurrence floor The fire prevention smoke prevention means on the floor below the fire occurrence floor is closed after sequentially closing the fire prevention smoke prevention means on the floor near the fire occurrence floor .
[0007]
According to the configuration described above, in the event of a fire, after closing the fire and smoke prevention means on the floor where the fire occurred, it was closed sequentially from the fire and smoke prevention means on the floor near the fire occurrence floor to the distant fire and smoke prevention means. Not only does it cause a shortage of emergency power, but it can also prevent the fire from expanding from the fire floor to the nearest floor via the hoistway.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an elevator apparatus of the present invention will be described based on 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 a fire detector (not shown) provided on each floor is sent to the shutter control means in the control device 4 through a communication line, and this control means identifies the fire floor using the detected information. At the same time, a command is issued to the shutter driving device 12 to operate the fire and smoke / shutter 11.
[0012]
Here, the shutter control means includes detection information storage means for receiving and storing the detection information detected by the fire detector, a fire floor specifying means for specifying the fire floor based on the detection information, and the fire floor specifying means. 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 above the floor specified above in the floor above the fire floor.
[0013]
The operation of the present invention will be described below with reference to FIG. First, it is determined whether or not there is a fire with a fire detector provided on each floor in the building 1 (step 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 fire floor is identified based on the detection information of the fire detector (step S2). If a fire occurs on the fire floor, for example, the floor 3, the shutter driving device 12 of the floor 3 is detected. However, the entrance / exit of the floor 3 is closed with the fire / smoke / shutter 11 (procedure S3), and flame and smoke are prevented from entering the hoistway 2. Thereafter, the fire and smoke prevention shutters 11 on the floors closer to the fire floor among the floors above the fire floor are sequentially closed (step S4). For example, the floor 4, the floor 5, and the floor 2 are finally closed with the fire and smoke / shutter 11 on the floor 1 in sequence.
[0014]
In this way, the shutter drive devices 12 on all floors are not driven at the same time, but one unit is driven for each shutter drive device on each floor, so that the situation where the capacity of the emergency power supply 13 is insufficient is prevented. Can do. 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. Further, since the shutter driving device 12 is sequentially driven so as to be sequentially closed from the fire prevention smoke prevention shutter 11 on the floor close to the fire floor, it is possible to accurately prevent the spread of fire to each floor. The reason why they are closed sequentially from the upper floor is that flames and smoke tend to move to the upper floor, but they may be closed sequentially from the floor close to the fire floor regardless of the vertical direction. I do not care.
[0015]
Furthermore, when the capacity of the emergency power supply device 13 is sufficient, the shutters in the floor group close to the fire occurrence floor may be sequentially closed to the shutters in the floor group far away. For example, if a fire occurs on the 8th floor of a 15th floor building, floors 9-11, floors 12-15, floors 7-5, floors 4-2, and finally floor 1 are closed in sequence. May be. Here, the reason why the floor 1 is finally set is that this floor is assumed to be an evacuation floor. In the case of using a normal power source that does not cause a power failure, there is no problem even if it is driven all at once except for the evacuation floor as usual.
[0016]
Moreover, although the example which provided the emergency power supply device 13 on the roof of the building 1 was shown in embodiment mentioned above, you may provide in the machine room 3 or the appropriate position in a building. Furthermore, a screen or door may be used in place of the shutter as means for preventing the flow of fire or smoke.
[0017]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, not only the capacity shortage of an emergency power supply does not arise at the time of a fire outbreak, but it can prevent that a fire spreads via a hoistway from a fire outbreak floor to a near floor.
[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 prevention smoke-proof shutter, 12 ... Shutter drive device, 13 ... Emergency power supply device.

Claims (2)

Fire prevention and smoke prevention means for preventing fire or smoke from flowing between a hoistway provided in a building composed of a plurality of floors and a landing, a drive device for opening and closing the fire prevention smoke prevention means, and a power source for the drive device When the emergency power supply device operates due to the occurrence of a fire, after closing the fire prevention smoke prevention means on the floor where the fire occurred , An elevator apparatus characterized in that after the fire and smoke prevention means are sequentially closed, the fire prevention and smoke prevention means on the floor below the fire occurrence floor are closed . The elevator apparatus according to claim 1, wherein the elevator apparatus is sequentially closed from the fire prevention and smoke prevention means of the floor group close to the fire occurrence floor to the fire prevention and smoke prevention means of the floor group far away .

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