JP2022159915A - Smoke shielding device for elevator and elevator device - Google Patents

Abstract

To provide a smoke shielding device for an elevator at a lower cost capable of suppressing the movement of smoke through a hoistway when a fire occurs.SOLUTION: A smoke shielding device for an elevator is retractably mounted on at least one exterior surface of an elevator car that ascends and descends in a hoistway, extends, when deployed, between the elevator car and the hoistway over all exterior surfaces of the elevator car facing the hoistway, and includes a first smoke shielding member that vertically partitions the space in the hoistway, and first deploying means that deploys the first smoke shielding member. Further, the smoke shielding device for an elevator may include: a second smoke shielding member mounted in a retracted state to the outer surface of the side of the elevator car on which the doorway is provided, extends, when deployed, between the elevator car and the hoistway over the entire circumference of the doorway while dividing the space in the hoistway into the space between the doorway and the hoistway and other spaces; and second deployment means for deploying the second smoke shielding member.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present disclosure relates to elevator smoke barriers and elevator systems for suppressing the movement of smoke through a hoistway in the event of a fire.

Conventionally, in a building with elevators, there is a technology to install a smoke barrier at the landing doorway of the hoistway in order to prevent smoke from spreading to other floors through the hoistway when a fire breaks out on a certain floor. Are known. In Patent Document 1, in the gap between the landing doorway provided at each floor of the hoistway and the landing door provided at the landing doorway, an expansive smoke-blocking material that expands and closes the gap when a fire occurs is disclosed. It is disclosed to provide a In Patent Document 2, a partition device is provided at a plurality of locations on the inner wall of the hoistway to divide the hoistway into upper and lower parts, and in the event of a fire, the car is moved below the floor where the fire occurred, and the fire on the inner wall of the hoistway is prevented. It is disclosed that the hoistway is vertically partitioned by driving a partition device provided at a position close to the generation floor. The partition member is provided with a notch through which the rope of the car, the guide rail, the counterweight, etc. can pass.

JP-A-6-72680 JP 2012-30932 A

However, the smoke shielding device disclosed in Patent Literature 1 requires the installation and maintenance of the expansive smoke shielding material at each entrance and exit of the hall on each floor, resulting in high installation and maintenance costs. In addition, the smoke shielding device disclosed in Patent Document 2 also requires a partition device to be provided at predetermined intervals in the vertical direction of the inner wall of the hoistway, for example, at intervals of the height of two floors. There is a problem that the cost is high. This problem is more pronounced in high-rise buildings with many floors.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present disclosure to provide an elevator smoke blocker and an elevator system that are less costly and are capable of suppressing the movement of smoke through a hoistway in the event of a fire.

An elevator smoke shield according to the present disclosure is stowedly attached to at least one exterior surface of an elevator car that ascends and descends in a hoistway and, when deployed, is on all exterior surfaces of the elevator car that face the hoistway. and a first smoke shielding member extending between the elevator car and the hoistway to vertically partition the space in the hoistway, and a first deploying means for deploying the first smoke shielding member. is.

According to the elevator smoke blocking device according to the present disclosure, it is possible to suppress the movement of smoke through the hoistway in the event of a fire at a lower cost.

1 is a diagram showing a schematic configuration of an elevator apparatus according to a first embodiment; FIG. FIG. 1 shows an elevator car without an elevator smoke barrier installed; FIG. 3 is a view showing the retracted state of the elevator smoke blocker attached to the elevator car; FIG. 3 shows the deployed state of the elevator smoke barrier attached to the elevator car. FIG. 2 shows the elevator car and the elevator smoke blocker in smoke blocking operation; It is a flowchart which shows the flow of the process performed by an elevator apparatus. It is a hardware block diagram of an elevator apparatus. It is a figure which shows the 1st modification of a 1st smoke-shielding member. FIG. 4 is a diagram showing a first configuration example of a first deployment means; FIG. 10 is a diagram showing a second configuration example of the first deployment means; It is a figure which shows the storage state of the 2nd modification of a 1st smoke-shielding member. It is a figure which shows the unfolded state of the 2nd modification of a 1st smoke-shielding member. FIG. 8 is a diagram showing a modification of the mounting position of the first smoke blocking member with respect to the elevator car; FIG. 8 is a diagram showing a modification of the mounting position of the first smoke blocking member with respect to the elevator car; FIG. 10 is a diagram showing a smoke blocking operation of the elevator apparatus according to the second embodiment;

[First embodiment]
An elevator smoke blocking device and an elevator system according to the first embodiment will be described below. FIG. 1 is a diagram showing a schematic configuration of an elevator system according to a first embodiment. As shown in FIG. 1, the elevator system 10 includes an elevator 20, an elevator smoke blocker 30, an elevator controller 40 that controls the movement of the elevator 20 and the elevator smoke blocker 30, and the control thereof. It has a storage unit 50 in which various data are stored. In addition, the building in which the elevator 20 is installed is provided with a plurality of fire detectors 41 that detect the occurrence of fire by sensing smoke or heat.

The elevator 20 includes an elevator car 21 that ascends and descends in the hoistway, a counterweight (not shown) connected to the elevator car 21 via a rope, and the elevator car 21 and the counterweight via the rope. A hoist 22 is provided. The rope is hoisted by the hoist 22, the elevator car 21 and the counterweight move in mutually opposite directions, and the elevator car 21 lands on an arbitrary landing among a plurality of landings provided in the building, Users can get on and off.

The elevator control unit 40 appropriately switches the operation mode based on various information related to the operation of the elevator 20, and controls each unit of the elevator 20 according to the operation mode. Operation modes include normal operation, fire control operation, smoke blocking operation, and the like. The elevator control unit 40 controls the elevator 20 so that normal operation is normally performed. Further, when the elevator control unit 40 receives a fire detection signal from the fire detector 41, the elevator control unit 40 first controls the elevator 20 so that the fire control operation is performed. During the fire control operation, the elevator control unit 40 determines whether or not there are passengers in the elevator car 21, and if there are passengers, the elevator car 21 is caused to land on a predetermined evacuation floor landing, and the passengers are seated. evacuate. After that, the elevator control unit 40 controls the movement of the elevator 20 and the elevator smoke blocker 30 so that the smoke blocking operation is performed. Details of this smoke blocking operation will be described later.

The elevator smoke blocking device 30 is used by being attached to the elevator car 21, and comprises a first smoke blocking member 31 and a first deploying means 32 for deploying the first smoke blocking member 31. there is The elevator smoke shielding device 30 also includes a second smoke shielding member 36 and a second deploying means 37 for deploying the second smoke shielding member 36 .

FIG. 2 shows the elevator car 21 without the elevator smoke barrier 30 installed. The elevator car 21 is formed with a concave first storage portion 23 that extends horizontally along the entire circumference of the elevator car 21 at a position closer to the upper side in the vertical direction. A first smoke blocking member 31 is attached to the first housing portion 23 . Further, the elevator car 21 is formed with a recessed second storage portion 24 along the entire periphery of the doorway 25 . A second smoke blocking member 36 is attached to the second housing portion 24 .

3 and 4 are views showing the elevator car 21 with the elevator smoke blocker 30 attached, and FIG. 3 shows the elevator smoke blocker 30 in the retracted state. . FIG. 4 shows the elevator smoke barrier 30 in a deployed state.

The first smoke blocking member 31 is an expandable member that has an internal space and expands when the internal space is filled with a fluid. The first smoke blocking member 31 is arranged along the first storage section 23 so as to surround the elevator car 21, as shown in FIG. In the stored state, the first smoke blocking member 31 is housed in the first storage portion 23 in a slightly contracted state, as shown in FIG.

The first deployment means 32 operates based on a control signal from the elevator control section 40, and inflates the inflatable member constituting the first smoke blocking member 31 by filling the internal space of the inflatable member with fluid. . The first smoke blocking member 31 is deployed by the first deployment means 32, and as shown in FIG. spread between As a result, the space in the hoistway H is vertically partitioned, and the movement of smoke between above and below the partitioned position can be suppressed.

The first deploying means 32 may supply, for example, compressed air sealed in a cylinder to the internal space of the inflatable member, or gas generated using gunpowder, explosive, foaming agent, etc. may be supplied to the inflatable member. may be supplied to the internal space of. Also, the first deployment means 32 may supply air to the internal space of the inflatable member by means of a pump, or may fill the internal space of the inflatable member with fluid using another configuration. .

The second smoke blocking member 36 is an expandable member that has an internal space and expands when the internal space is filled with a fluid. The second smoke blocking member 36 extends along the second storage portion 24 so as to surround the doorway 25 . In the stored state, the second smoke blocking member 36 is housed in the second storage portion 24 in a slightly contracted state, as shown in FIG.

The second deployment means 37 operates based on a control signal from the elevator control section 40, and inflates the inflatable member constituting the second smoke blocking member 36 by filling the internal space of the inflatable member with fluid. . The second smoke blocking member 36 is deployed by the second deployment means 37 and spreads out between the elevator car 21 and the hoistway H along the entire circumference of the doorway 25, as shown in FIG. As a result, the space in the hoistway H is partitioned into the space between the entrance 25 and the hoistway H and other spaces, and the movement of smoke from one of these spaces to the other can be suppressed.

Like the first deployment means 32, the second deployment means 37 may supply compressed air sealed in a cylinder to the internal space of the expansion member, or may be a gunpowder, an explosive, a foaming agent, or the like. may be supplied to the internal space of the inflatable member. The second deployment means 37 may supply air to the internal space of the inflatable member by means of a pump, or may fill the internal space of the inflatable member with fluid using another configuration. .

Next, the smoke blocking operation will be described with reference to FIG. FIG. 5 shows the elevator car 21 and the elevator smoke blocking device 30 in the smoke blocking operation state. During the smoke blocking operation, the elevator control unit 40 first moves the elevator car 21 to the fire floor F, which is the floor where the fire was detected. After that, the elevator control unit 40 deploys the first smoke blocking member 31 by the first deploying means 32 and deploys the second smoke blocking member 36 by the second deploying means 37 . At this time, as shown in FIG. 5, a partition position S where the space in the hoistway H is vertically partitioned by the deployed first smoke blocking member 31 is provided between the landing of the fire floor F and the hoistway H. and the landing doorway 55 provided between the landing on the upper floor and the hoistway H. In addition, the doorway 25 of the elevator car 21 and the landing doorway 55 of the fire floor F, which are arranged to face each other, are surrounded by the deployed second smoke blocking member 36, and the enclosed space is the hoistway H. separated from the space of

As a result, even if fire smoke enters the space between the doorway 25 and the hoistway H from the landing doorway 55 on the fire floor F, the second smoke blocking member 36 spreads out the smoke from the hoistway H. Spreading to other spaces can be suppressed. Further, even if fire smoke enters below the partition position S of the hoistway H, the spread of the smoke above the partition position S can be suppressed by the deployed first smoke blocking member 31 . It should be noted that it is possible to set in advance whether or not to execute the smoke blocking operation, and to execute or not to execute the smoke blocking operation according to the setting. For example, the storage unit 50 stores setting information for enabling/disabling the smoke blocking operation function, and the elevator control unit 40 refers to the stored setting information to execute or not to execute the smoke blocking operation. do.

Here, the flow of processing performed by the elevator apparatus 10 will be described with reference to the flowchart shown in FIG. First, during normal operation, the elevator control unit 40 monitors whether or not a fire detection signal has been received from any of the fire detectors 41 while controlling the elevator 20 so as to operate normally (step S1). (Step S2). When a fire detection signal is received from the fire detector 41 (step S2, YES), the process from step S3 onwards is performed. On the other hand, if the fire detection signal has not been received from the fire detector 41 (step S2, NO), the process returns to step S1.

In step S3, the elevator control unit 40 controls the elevator 20 so that the fire control operation is performed (step S3). In the fire control operation, when there are passengers in the elevator car 21, the elevator control unit 40 lands the elevator car 21 on a predetermined evacuation floor landing to evacuate the passengers. Next, the elevator control unit 40 determines whether or not there are passengers in the elevator car 21 (step S4), and if there are no passengers (step S4, YES), the process from step S5 onwards is performed. On the other hand, when passengers remain (step S4, NO), the process returns to step S3.

In step S5, the elevator control unit 40 refers to the smoke blocking operation function enable/disable setting information stored in the storage unit 50, and determines whether the smoke blocking operation function is enabled ( step S5). If the smoke blocking operation function is disabled (step S5, NO), the process ends there. On the other hand, if the smoke blocking operation function is effective (step S5, YES), the processing from step S6 onward is performed as processing for executing the smoke blocking operation. In step S6, the elevator control unit 40 controls the elevator 20 to move the elevator car 21 to the fire floor F (step S6). After that, the elevator control unit 40 deploys the first smoke blocking member 31 by the first deploying means 32 and deploys the second smoke blocking member 36 by the second deploying means 37 (step S7). exit.

In addition, in the flow of processing by the elevator apparatus 10, the step of determining whether the smoke blocking operation function is valid or invalid may be omitted. For example, the smoke blocking operation can be always executed without determining whether the smoke blocking operation function is valid or invalid. In addition, after the fire is extinguished, the deployed first smoke shielding member 31 and the second smoke shielding member 36 can be stored again or replaced with new ones in restoration work by maintenance personnel, for example. .

Each component of the elevator apparatus 10 is configured by a computer having a processor 51, a memory 52, and a signal input/output unit 53 shown in FIG. Each function of the elevator control unit 40 is realized by this computer. That is, the memory 52 of the computer stores a program (elevator control program) for realizing each function of the elevator control section 40 . Various information stored in the storage unit 50 is stored in the memory 52 . The processor 51 executes arithmetic processing for controlling the movement of the elevator 20 and the elevator smoke blocking device 30 based on the programs stored in the memory 52 .

As described above, the elevator installation 10 has an elevator smoke blocker 30 attached to the elevator car 21 . Elevator smoke barrier 30 is retractably attached to at least one exterior surface of elevator car 21 that ascends and descends within hoistway H and, when deployed, is mounted on all exterior surfaces of elevator car 21 facing hoistway H. A first smoke shielding member 31 spread over the side surface between the elevator car 21 and the hoistway H to vertically partition the space in the hoistway H, and a first deployment for deploying the first smoke shielding member 31. means 32; Therefore, by deploying the first smoke shielding member 31 by the first deploying means 32 when a fire occurs, the movement of smoke through the hoistway H can be suppressed.

Further, since the elevator smoke blocking device 30 is attached to the elevator car 21, the position at which the first smoke blocking member 31 is deployed can be determined by appropriately controlling the stop position of the elevator car 21 in the hoistway H. Can be changed arbitrarily. For example, depending on the position of the fire floor F, the first smoke blocking member 31 can be deployed at a position within the hoistway H that is most effective in reducing fire damage by blocking smoke. Thus, it is possible to effectively suppress the movement of smoke through the inside of the hoistway H at a lower cost than the conventional method in which smoke shielding devices are provided at a plurality of places on the landing doorway of each floor or the inner wall of the hoistway.

Further, the elevator smoke blocking device 30 is attached in a retracted state to the outer surface of the elevator car 21 on the side where the doorway 25 is provided, and when deployed, moves up and down with the elevator car 21 over the entire circumference of the doorway 25. A second smoke blocking member 36 spread between the hoistway H and partitioning the space in the hoistway H into the space between the entrance 25 and the hoistway H and other spaces, and the second smoke blocking member 36 are deployed. and a second deploying means 37 for allowing. Therefore, by deploying the second smoke blocking member 36 by the second deploying means 37, the movement of the smoke via the hoistway H can be further suppressed.

In the above-described first embodiment, the first smoke blocking member 31 is arranged along the first storage portion 23 so as to surround the elevator car 21 in the stored state. It is not limited to this. The first smoke barrier member 31 extends between the elevator car 21 and the hoistway H across all outer surfaces of the elevator car 21 facing the hoistway H when deployed. is stored on at least one outer surface of the . For example, inflatable members stored in a small contraction on one or two outer surfaces of the elevator car 21 may gradually expand to surround the elevator car 21 as the interior space is filled with fluid. good.

Also, the first smoke shielding member 31 may be composed of two or more divided bodies. For example, each of the four outer surfaces of the elevator car 21, which has a substantially rectangular horizontal cross section, may be fitted with an inflatable member in a retracted state to extend between the outer surface and the opposing hoistway H. .

In addition, in the first embodiment, the first smoke shielding member 31 and the second smoke shielding member 36 are expandable members having internal spaces, and the internal spaces are filled with a fluid and expanded. Although the case of forming a partition in the hoistway H has been described, the present invention is not limited to this. For example, as shown in FIG. 8, a partition may be formed in the hoistway H by spreading a plurality of plate-shaped members that are folded and stored between the elevator car 21 and the hoistway H.

FIG. 8 is a diagram showing a first modification of the first smoke blocking member. This configuration can be applied to the second smoke barrier as well. FIG. 8(a) shows the retracted state of the first smoke blocking member 131. As shown in FIG. FIG. 8(b) shows a state in which the first smoke blocking member 131 is being deployed. FIG. 8(c) shows the unfolded state of the first smoke blocking member 131. As shown in FIG. 8(a) to 8(c) show only the portion of the first smoke blocking member 131 attached to one outer surface of the elevator car 21 for ease of understanding. are attached to each of the four outer sides of the elevator car 21. As shown in FIG.

The first smoke blocking member 131 includes a rectangular plate-like member 82 attached to the outer surface of the elevator car 21 via a hinge 81 at one end, and hinges with springs attached to the left and right sides of the rectangular plate-like member 82 . It has a triangular plate member 84 attached via 83 . In the retracted state, the first smoke blocking member 131 is housed on the outer surface side of the elevator car 21 by folding the rectangular plate member 82 and the triangular plate member 84, as shown in FIG. 8(a). When deployed, the rectangular plate member 82 is rotated about the hinge 81 as shown in FIG. 8B by the first deployment means (not shown in FIG. 8). Spread between the elevator car 21 and the hoistway H. As the rectangular plate-like member 82 is expanded, the spring force of the spring-loaded hinge 83 causes the triangular plate-shaped member 84 to rotate about the spring-loaded hinge 83 and spread as shown in FIG. 8(c). be done. By unfolding all of the rectangular plate members 82 and the triangular plate members 84 attached to the four outer surfaces of the elevator car 21, partitions are formed that divide the space in the downway H vertically. .

At this time, as shown in FIG. 9, the first deploying means for rotating the rectangular plate-like member 82 to spread it between the elevator car 21 and the hoistway H includes biasing means such as a spring 85, a motor, and an electromagnet. It may consist of a stopper 86 that can be released by, for example. FIG. 9 is a diagram showing a first configuration example of the first deployment means. 9 is a side view of the space between one outer surface of the elevator car 21 and the hoistway H. FIG. A spring 85 is disposed between the rectangular plate member 82 in the retracted state and the outer surface of the elevator car 21 and elastically biases the rectangular plate member 82 away from the elevator car 21 . At this time, the spring 85 is attached to either the rectangular plate member 82 or the outer surface of the elevator car 21 . In the retracted state, the stopper 86 contacts the hoistway H side of the rectangular plate member 82 and restricts the movement of the rectangular plate member 82 away from the elevator car 21 as shown in FIG. 9(a). On the other hand, when it is deployed, the stopper 86 is released by the motor or the like as shown in FIG. 9(b). When the stopper 86 is released, the rectangular plate-like member 82 is urged by the spring 85 in a direction away from the elevator car 21 to rotate and spread between the elevator car 21 and the hoistway H. As shown in FIG.

As shown in FIG. 9, a cushioning material 821 made of a flexible material such as rubber, resin, or sponge is attached to the end of the rectangular plate-like member 82 on the hoistway H side. , the cushion material can be pressed against the hoistway H side. As a result, the smoke blocking performance of the elevator smoke blocking device can be further improved. Further, as shown in FIG. 9, the outer surface of the elevator car 21 can be provided with a concave first storage portion 123 for storing the first smoke blocking member 131 in the stored state.

Further, as shown in FIG. 10, the first expanding means for rotating the rectangular plate-like member 82 to spread it between the elevator car 21 and the hoistway H is attached to the rotating shaft 87 of the rectangular plate-like member 82. It may be the motor 88 . FIG. 10 is a diagram showing a second configuration example of the first deployment means. The motor 88 can rotate the rectangular plate-shaped member 82 via the rotating shaft 87 .

11 and 12, a link mechanism 90 is used to separate a flexible sheet material 96 between the elevator car 21 and the hoistway H. There is a configuration that spreads in between. 11 and 12 are diagrams showing a second modification of the first smoke blocking member. This configuration can also be applied to the second smoke barrier. FIG. 11 shows the stored state of the first smoke blocking member 231 . FIG. 12 shows the deployed state of the first smoke blocking member 231 . 11 and 12 are diagrams of the structure of the first smoke blocking member 231 near one corner of the elevator car 21 as seen from below.

The link mechanism 90 is composed of a plurality of links 92 that are relatively rotatably connected by a connecting portion 91 . The link mechanism 90 is attached to the outer surface of the elevator car 21 and extends and contracts from the elevator car 21 toward the hoistway H. A rod-shaped pressing member 94 is attached substantially parallel to the wall of the hoistway H on the side of the hoistway H of the link mechanism 90 . The pressing member 94 is pressed against the wall of the hoistway H when the link mechanism 90 is extended toward the hoistway H. A sheet member 96 is attached to the link mechanism 90 via a pressing member 94 . The sheet material 96 is a flexible, air-impermeable sheet sized to extend between the elevator car 21 and the hoistway H when the linkage 90 is extended. When the link mechanism 90 is contracted toward the elevator car 21, the sheet material 96 is folded into a small size and stored on the outer side of the elevator car 21, as shown in FIG. For example, the sheet material 96 is folded at a location indicated by an arrow C or the like.

The link mechanism 90 is connected to first deployment means such as a motor. The sheet material 96 is spread between the elevator car 21 and the hoistway H by extending the link mechanism 90 as shown in FIG. At this time, the sheet material 96 is pressed against the wall of the hoistway H by the pressing material 94 .

Although the link mechanism 90 expands and contracts from the elevator car 21 toward the hoistway H by rotational motion here, it may expand and contract by sliding motion, for example. Moreover, the sheet material 96 may be folded in a bellows shape and stored. Moreover, the sheet material 96 may consist of one sheet or two or more sheets, or may be in the form of a bag.

Further, in the first embodiment, the elevator smoke blocking device 30 includes the first smoke blocking member 31 deployed by the first deployment means and the second smoke blocking member 31 deployed by the second deployment means 37. Although the case where both smoke blocking members 36 are provided has been described, the present invention is not limited to this. Since each of the first smoke blocking member 31 and the second smoke blocking member 36 exerts an effect of independently suppressing the movement of smoke through the hoistway H, only one of them is provided. may

Further, in the above-described first embodiment, the case where the first smoke blocking member 31 is attached above the doorway 25 of the elevator car 21 is exemplified. It may be attached in a lower position. In this case, in the smoke blocking operation, the elevator control unit 40 moves the elevator car 21 to the landing one floor above the fire floor F and deploys the first smoke blocking member 31, as shown in FIG. . As a result, the partition position S where the space in the hoistway H is vertically partitioned by the deployed first smoke blocking member 31 is the landing doorway 55 provided between the landing of the fire floor F and the hoistway H. It is located between the landing on the upper floor and the landing doorway 55 provided between the hoistway H. As a result, even if fire smoke enters the space of the hoistway H from the landing doorway 55 of the fire floor F, the smoke spreads upward from the partition position S due to the presence of the deployed first smoke blocking member 31. It is possible to suppress

Also, the first smoke blocking member 31 may be attached at a position passing through the entrance 25 in the vertical direction of the elevator car 21 . In this case, as shown in FIG. 14, the interior of the hoistway H is vertically partitioned by a combination of the first smoke shielding member 331 and the second smoke shielding member 36 .

[Second embodiment]
The elevator apparatus according to the second embodiment will be described below with reference to FIG. The elevator apparatus according to the second embodiment differs from the first embodiment in that one hoistway H has a plurality of elevator cars 21a and 21b. A first smoke blocking member 31a is attached to the elevator car 21a, a first smoke blocking member 31b is attached to the elevator car 21b, and both the elevator cars 21a and 21b have the second smoke blocking member. It differs from the first embodiment in that it is not attached. Other points are common to the first embodiment. In the following description, only the difference will be described, and the description of the same configuration as in the first embodiment will be omitted.

In the second embodiment, during the smoke blocking operation, the elevator control unit 40 moves all the elevator cars 21a and 21b in the hoistway H to the same position ( For example, after moving to the fire floor F), the first smoke blocking members 31a, 31b attached to each elevator car 21a, 21b are deployed. As a result, the positions at which the first smoke blocking members 31a and 31b are deployed are the same in the vertical direction of the hoistway H, and the combination of the deployed first smoke blocking members 31a and 31b allows the inside of the hoistway H to Divided into top and bottom.

Although FIG. 15 exemplifies the case where the mounting positions of the first smoke blocking members 31a and 31b with respect to the elevator cars 21a and 21b are the same, the mounting positions may differ. When the mounting positions are different, the stop positions of the elevator cars 21a and 21b in the hoistway H are changed so that the positions at which the first smoke blocking members 31a and 31b are deployed are the same in the vertical direction of the hoistway H. let it be decided.

Further, in each of the above-described embodiments, the elevator car 21 has a substantially rectangular cross section in the horizontal direction, but it may be circular, elliptical, or polygonal such as pentagonal or hexagonal. There may be. Further, in each of the above-described embodiments, an elevator car having one entrance/exit was described as an example, but two or more entrances/exits may be provided. In that case, a plurality of second smoke blocking members may be provided corresponding to the respective entrances and exits.

Further, in each embodiment, conventional smoke blocking devices may be further provided at a plurality of locations on the landing doorway of each floor or on the inner wall of the hoistway. As a result, the smoke shielding function can be maintained for a longer period of time in the event of a fire.

REFERENCE SIGNS LIST 10 elevator apparatus 20 elevator 22 hoisting machine 23, 123 first storage section 24 second storage section 25 doorway 30 smoke shielding device for elevator 31, 131, 231, 31a, 31b, 331 first smoke shielding member 32 second Deployment Means 1 36 Second Smoke Blocking Member 37 Second Deployment Means 40 Elevator Control Unit 41 Fire Detector 50 Storage Unit 51 Processor 52 Memory 53 Signal Input/Output Unit 55 Hall Entrance/Exit 81 Hinge 82 Rectangular Plate-shaped Member 83 With Spring Hinge 84 Triangular plate-shaped member 85 Spring 86 Stopper 87 Rotating shaft 88 Motor 90 Link mechanism 91 Connecting part 92 Link 94 Pressing material 96 Sheet material 821 Cushion material F Fire floor H Hoistway S Partition position

Claims (9)

stowedly attached to at least one outer surface of an elevator car that ascends and descends within a hoistway and, when deployed, spans all outer surfaces of said elevator car opposite said hoistway and said elevator car and said hoist; a first smoke blocking member spread between the hoistways and vertically partitioning the space in the hoistway;
A smoke blocking device for an elevator, comprising: a first deployment means for deploying the first smoke blocking member. attached in a stowed state to the outer surface of the side of the elevator car on which the doorway is provided; a second smoke blocking member that divides the inner space into a space between the doorway and the hoistway and other spaces;
2. The elevator smoke blocking device according to claim 1, further comprising: a second deploying means for deploying the second smoke blocking member. The first smoke blocking member is an expandable member that has an internal space and expands when the internal space is filled with a fluid,
3. A smoke blocking device for an elevator according to claim 1, wherein said first deployment means fills said internal space with said fluid. The first smoke blocking member has a plurality of plate-shaped members that are folded and stored,
3. The elevator smoke blocking device according to claim 1, wherein said first unfolding means unfolds said plurality of folded plate members between said elevator car and said hoistway. The first smoke blocking member has a link mechanism attached to the outer surface of the elevator car and extending and contracting from the elevator car toward the hoistway, and a sheet material attached to the link mechanism,
3. The elevator shield according to claim 1, wherein said first spreading means spreads said sheet material between said elevator car and said hoistway by extending said link mechanism from said elevator car toward said hoistway. smoke device. A smoke barrier for an elevator according to any one of claims 1 to 5;
the elevator car;
When a fire detection signal is received from a fire detector installed in a building in which the hoistway is provided, the partition position where the space in the hoistway is vertically partitioned by the first smoke blocking member is moving the elevator car so as to be higher than a landing doorway provided between the landing of the floor where the fire is detected and the hoistway; and control means for deploying members. When the control means receives the fire detection signal, the partition position is set to the landing doorway provided between the landing of the floor where the fire was detected and the hoistway, and the doorway where the fire was detected. 7. The elevator apparatus according to claim 6, wherein the elevator car is moved between a landing on a floor one floor higher and a landing doorway provided between the hoistway. 8. An elevator system as claimed in claim 6 or 7, wherein the elevator car has a recessed recess to which the first smoke barrier is mounted on the at least one outer surface. It is mounted in a stowed state on the outer surface of the doorway side of an elevator car that ascends and descends in the hoistway and, when deployed, spreads between the elevator car and the hoistway around the entire circumference of the doorway. a second smoke blocking member that partitions the space in the hoistway into a space between the doorway and the hoistway and other spaces;
and a second deploying means for deploying the second smoke shielding member.

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