JP7567632B2 - Smoke suppression device for elevators and elevator equipment - Google Patents

Description

This disclosure relates to an elevator smoke control device and elevator system that suppresses the movement of smoke through an elevator shaft in the event of a fire.

In a building where an elevator is installed, a technique is known in which smoke blocking devices are provided at the entrances and exits of elevators to prevent smoke from spreading to other floors through the elevator when a fire breaks out on a certain floor. Patent Document 1 discloses providing an expanding smoke blocking material that expands in the event of a fire to close the gap between the entrances and exits of the elevator at each floor of the elevator and the landing doors at the entrances and exits. Patent Document 2 discloses providing partition devices at multiple locations on the inner wall of the elevator to separate the elevator into upper and lower parts, and in the event of a fire, moving the car below the floor where the fire broke out and driving the partition device provided on the inner wall of the elevator near the floor where the fire broke out to separate the elevator into upper and lower parts. The partition members are provided with cutouts through which the ropes, guide rails, counterweights, etc. of the car can pass.

Japanese Patent Application Publication No. 6-72680 JP 2012-30932 A

However, the smoke suppression device disclosed in Patent Document 1 requires the provision of an inflatable smoke suppression material at each landing entrance/exit on each floor, which raises the problem of high installation and maintenance costs. In addition, the smoke suppression device disclosed in Patent Document 2 also requires partition devices to be provided at predetermined intervals in the vertical direction of the inner wall of the elevator shaft, for example at intervals equivalent to the height of two floors, which raises the problem of high installation and maintenance costs. This problem is more pronounced in high-rise buildings with many floors.

Therefore, the objective of this disclosure is to provide a smoke blocking device for elevators and an elevator system that can suppress the movement of smoke through the elevator shaft in the event of a fire, at a lower cost.

The elevator smoke blocking device according to the present disclosure is equipped with a first smoke blocking member that is attached in a stored state to at least one outer surface of an elevator car ascending or descending in a hoistway, and that, when deployed, is spread between the elevator car and the hoistway over all outer surfaces of the elevator car that face the hoistway, dividing the space in the hoistway into upper and lower sections, and a first deployment means for deploying the first smoke blocking member.

The elevator smoke suppression device disclosed herein can suppress the movement of smoke through the elevator shaft 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. 2 shows an elevator car without an elevator smoke suppression device installed. FIG. 2 is a diagram showing the stored state of an elevator smoke suppression device attached to an elevator car. FIG. 2 is a diagram showing the deployed state of an elevator smoke suppression device attached to an elevator car. FIG. 2 is a diagram showing an elevator car and an elevator smoke suppression device in a smoke suppression operation state. 4 is a flowchart showing a flow of processing performed by the elevator device. FIG. 2 is a hardware configuration diagram of the elevator device. 11A and 11B are diagrams showing a first modified example of the first smoke shielding member. FIG. 2 is a diagram showing a first configuration example of a first deployment means; FIG. 13 is a diagram illustrating a second configuration example of the first deployment means. A figure showing the stored state of the second modified example of the first smoke blocking member. A figure showing the deployed state of a second modified example of the first smoke blocking member. 11A to 11C are diagrams showing examples of modifications of the mounting position of the first smoke blocking member relative to the elevator car. 11A to 11C are diagrams showing examples of modifications of the mounting position of the first smoke blocking member relative to the elevator car. FIG. 11 is a diagram showing a state during smoke-blocking operation of the elevator apparatus according to the second embodiment.

[First embodiment]
Hereinafter, an elevator smoke suppression device and an elevator system according to a first embodiment will be described. Fig. 1 is a diagram showing a schematic configuration of an elevator system according to a first embodiment. As shown in Fig. 1, an elevator system 10 includes an elevator 20, an elevator smoke suppression device 30, an elevator control unit 40 that controls the movements of the elevator 20 and the elevator smoke suppression device 30, and a storage unit 50 that stores various data referenced for the control. In addition, a building in which the elevator 20 is installed is provided with a plurality of fire detectors 41 that detect the occurrence of a fire by sensing smoke or heat.

The elevator 20 includes an elevator car 21 that moves up and down in the elevator shaft, a counterweight (not shown) connected to the elevator car 21 via a rope, and a hoist 22 that raises and lowers the elevator car 21 and the counterweight via the rope. The rope is wound up by the hoist 22, and the elevator car 21 and the counterweight move in opposite directions, and the elevator car 21 lands at any of the multiple landings provided in the building, allowing passengers to 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 part of the elevator 20 according to the operation mode. The operation modes include normal operation, fire control operation, and smoke-proof operation. The elevator control unit 40 controls the elevator 20 so that normal operation is performed under normal circumstances. Furthermore, when the elevator control unit 40 receives a fire detection signal from the fire detector 41, it first controls the elevator 20 so that fire control operation is performed. During fire control operation, the elevator control unit 40 determines whether there are passengers in the elevator car 21, and if there are passengers, it lands the elevator car 21 at a landing of a predetermined evacuation floor to evacuate the passengers. After that, the elevator control unit 40 controls the movement of the elevator 20 and the elevator smoke-proof device 30 so that smoke-proof operation is performed. This smoke-proof operation will be described in detail later.

The elevator smoke shielding device 30 is attached to the elevator car 21 for use, and includes a first smoke shielding member 31 and a first deployment means 32 for deploying the first smoke shielding member 31. The elevator smoke shielding device 30 also includes a second smoke shielding member 36 and a second deployment means 37 for deploying the second smoke shielding member 36.

Figure 2 shows an elevator car 21 without an elevator smoke blocking device 30 attached. A first concave storage section 23 is formed in the elevator car 21 at a position toward the top in the vertical direction, and extends horizontally around the entire circumference of the elevator car 21. A first smoke blocking member 31 is attached to this first storage section 23. In addition, a second concave storage section 24 is formed in the elevator car 21, and extends around the entire circumference of the entrance/exit 25. A second smoke blocking member 36 is attached to this second storage section 24.

Figures 3 and 4 both show the elevator car 21 with the elevator smoke suppression device 30 installed, with Figure 3 showing the elevator smoke suppression device 30 in the stored state and Figure 4 showing the elevator smoke suppression device 30 in the deployed state.

The first smoke blocking member 31 is an expansion member that has an internal space and expands when the internal space is filled with a fluid. As shown in FIG. 3, the first smoke blocking member 31 is arranged so as to surround the elevator car 21 along the first storage section 23. In the stored state, the first smoke blocking member 31 is stored in the first storage section 23 in a small contracted state as shown in FIG. 3.

The first deployment means 32 operates based on a control signal from the elevator control unit 40, and expands the expansion member constituting the first smoke blocking member 31 by filling the internal space of the expansion member with a fluid. The first smoke blocking member 31 is deployed by the first deployment means 32, and as shown in FIG. 4, is spread between the elevator car 21 and the hoistway H over all of the outer surfaces of the elevator car 21 that face the hoistway H. This divides the space within the hoistway H into upper and lower parts, and suppresses the movement of smoke between the upper and lower parts of the partitioned position.

The first deployment means 32 may be, for example, a device that supplies compressed air sealed in a cylinder to the internal space of the expansion member, or a device that supplies gas generated using gunpowder, explosives, foaming agents, etc. to the internal space of the expansion member. The first deployment means 32 may also be a device that supplies air to the internal space of the expansion member using a pump, or a device that fills the internal space of the expansion member with a fluid using other configurations.

The second smoke blocking member 36 is an expansion 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 section 24 so as to surround the periphery of the entrance/exit 25. In the stored state, the second smoke blocking member 36 is stored in the second storage section 24 in a small contracted state, as shown in FIG. 3.

The second deployment means 37 operates based on a control signal from the elevator control unit 40, and expands the expansion member constituting the second smoke blocking member 36 by filling the internal space of the expansion member with a fluid. The second smoke blocking member 36 is deployed by the second deployment means 37, and spreads between the elevator car 21 and the hoistway H all around the entrance/exit 25, as shown in FIG. 4. This divides the space in the hoistway H into the space between the entrance/exit 25 and the hoistway H and the other space, and the movement of smoke from either space to the other space can be suppressed.

The second deployment means 37, like the first deployment means 32, may supply compressed air sealed in a cylinder to the internal space of the expansion member, or may supply gas generated using gunpowder, explosives, foaming agents, etc. to the internal space of the expansion member. The second deployment means 37 may also supply air to the internal space of the expansion member using a pump, or may be configured in other ways to fill the internal space of the expansion member with a fluid.

Next, the smoke-blocking operation will be described with reference to FIG. 5. FIG. 5 is a diagram showing 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 is detected. Then, the elevator control unit 40 deploys the first smoke-blocking member 31 by the first deployment means 32 and deploys the second smoke-blocking member 36 by the second deployment means 37. At this time, as shown in FIG. 5, the partition position S at which the space in the elevator shaft H is partitioned into upper and lower parts by the deployed first smoke-blocking member 31 is between the landing entrance 55 provided between the landing of the fire floor F and the elevator shaft H and the landing entrance 55 provided between the landing of the floor one floor above and the elevator shaft H. In addition, the deployed second smoke barrier member 36 surrounds the entrance 25 of the elevator car 21 and the landing entrance 55 of the fire floor F, which are positioned opposite each other, and separates the enclosed space from the rest of the hoistway H.

As a result, even if smoke from a fire enters the space between the entrance 25 and the elevator shaft H from the landing entrance 55 on the fire floor F, the deployed second smoke blocking member 36 can prevent the smoke from spreading to other spaces in the elevator shaft H. Also, even if smoke from a fire enters below the partition position S of the elevator shaft H, the deployed first smoke blocking member 31 can prevent the smoke from spreading above the partition position S. Note that the necessity of this smoke blocking operation can be set in advance, and the smoke blocking operation can be performed or not performed depending on the setting. For example, setting information that sets whether the smoke blocking operation function is enabled or disabled is stored in the storage unit 50, and the elevator control unit 40 refers to the stored setting information to perform or not perform the smoke blocking operation.

Now, with reference to the flowchart shown in FIG. 6, the flow of processing performed by the elevator device 10 will be described. First, during normal operation, the elevator control unit 40 controls the elevator 20 so as to perform normal operation (step S1), while monitoring whether a fire detection signal has been received from any of the fire detectors 41 (step S2). If a fire detection signal has been received from the fire detector 41 (step S2, YES), processing from step S3 onwards is carried out. On the other hand, if a 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 fire control operation is performed (step S3). In fire control operation, if there are passengers in the elevator car 21, the elevator control unit 40 lands the elevator car 21 at a landing of a predetermined evacuation floor to evacuate the passengers. Next, the elevator control unit 40 determines whether there are passengers in the elevator car 21 (step S4), and if there are no passengers (step S4, YES), it performs processing from step S5 onwards. On the other hand, if there are passengers remaining (step S4, NO), it returns to step S3.

In step S5, the elevator control unit 40 refers to the setting information for enabling/disabling the smoke-blocking operation function stored in the memory unit 50 to determine whether the smoke-blocking operation function is enabled (step S5). If the smoke-blocking operation function is disabled (step S5, NO), the process ends. On the other hand, if the smoke-blocking operation function is enabled (step S5, YES), the process from step S6 onward is performed to execute 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 deployment means 32 and deploys the second smoke-blocking member 36 by the second deployment means 37 (step S7), and ends the process.

In the process flow by the elevator device 10, the step of determining whether the smoke-blocking operation function is enabled or disabled may be omitted. For example, the smoke-blocking operation may be always performed without determining whether the smoke-blocking operation function is enabled or disabled. In addition, the deployed first smoke-blocking member 31 and second smoke-blocking member 36 may be stored again or replaced with new members, for example, during recovery work by maintenance personnel after the fire has been extinguished.

The components of the elevator device 10 are configured by a computer equipped with a processor 51, memory 52, and signal input/output unit 53, as shown in FIG. 7. Each function of the elevator control unit 40 is realized by this computer. That is, the computer's memory 52 stores a program (elevator control program) for realizing each function of the elevator control unit 40. In addition, various information stored in the storage unit 50 is stored in the memory 52. The processor 51 executes calculations for controlling the movement of the elevator 20 and the elevator smoke suppression device 30 based on the program stored in the memory 52.

As described above, the elevator system 10 has an elevator smoke blocking device 30 attached to the elevator car 21. The elevator smoke blocking device 30 is attached in a stored state to at least one outer surface of the elevator car 21 ascending and descending in the hoistway H, and when deployed, is spread between the elevator car 21 and the hoistway H over all outer surfaces of the elevator car 21 facing the hoistway H, and is equipped with a first smoke blocking member 31 that divides the space in the hoistway H into upper and lower parts, and a first deployment means 32 that deploys the first smoke blocking member 31. Therefore, when a fire occurs, the first deployment means 32 deploys the first smoke blocking member 31, thereby suppressing the movement of smoke through the hoistway H.

In addition, because 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 changed as desired by appropriately controlling the stopping position of the elevator car 21 within the hoistway H. For example, depending on the location 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 for reducing fire damage through smoke blocking. This makes it possible to effectively suppress the movement of smoke through the hoistway H at a lower cost than the conventional method of providing smoke blocking devices at multiple locations on the landing entrances or inner walls of the hoistway on each floor.

Furthermore, the elevator smoke blocking device 30 is attached in a stored state to the outer surface of the elevator car 21 on the side where the entrance/exit 25 is provided, and when deployed, it is expanded between the elevator car 21 and the hoistway H around the entire periphery of the entrance/exit 25, and is equipped with a second smoke blocking member 36 that divides the space in the hoistway H into the space between the entrance/exit 25 and the hoistway H and the other space, and a second deployment means 37 that deploys the second smoke blocking member 36. Therefore, by deploying the second smoke blocking member 36 with the second deployment means 37, the movement of smoke through the hoistway H can be further suppressed.

In the first embodiment, the first smoke blocking member 31 is arranged to surround the elevator car 21 along the first storage section 23 in the stored state, but this is not limited to the above. It is sufficient that the first smoke blocking member 31 is stored on at least one outer surface of the elevator car 21 so that when deployed, it spreads between the elevator car 21 and the hoistway H over all outer surfaces of the elevator car 21 facing the hoistway H. For example, the configuration may be such that an expansion member stored in a small contracted state on one or two outer surfaces of the elevator car 21 gradually spreads to surround the elevator car 21 as the internal space is filled with fluid.

The first smoke blocking member 31 may also be made up of two or more divided bodies. For example, an expansion member may be attached in a stored state to each of the four outer surfaces of the elevator car 21, which has a substantially rectangular horizontal cross section, and which expands between the outer surface and the opposing hoistway H.

In the above first embodiment, the first smoke blocking member 31 and the second smoke blocking member 36 are expansion members having an internal space, and the internal space is filled with a fluid and the expansion forms a partition in the hoistway H. However, the present invention is not limited to this. For example, as shown in FIG. 8, the partition may be formed in the hoistway H by spreading a plurality of folded and stored plate-like members between the elevator car 21 and the hoistway H.

Figure 8 shows a first modified example of the first smoke blocking member. This configuration can be similarly applied to the second smoke blocking member. Figure 8(a) shows the first smoke blocking member 131 in a stored state. Figure 8(b) shows the first smoke blocking member 131 in the middle of being deployed. Figure 8(c) shows the first smoke blocking member 131 in a deployed state. Note that, for ease of understanding, Figures 8(a) to (c) only show a portion of the first smoke blocking member 131 that is attached to one outer surface of the elevator car 21, but the configuration shown in the figure is attached to each of the four outer surfaces of the elevator car 21.

The first smoke blocking member 131 has a rectangular plate member 82 with one end attached to the outer surface of the elevator car 21 via a hinge 81, and a triangular plate member 84 attached to each of the left and right ends of the rectangular plate member 82 via a spring hinge 83. In the stored state, the rectangular plate member 82 and the triangular plate member 84 are folded and stored on the outer surface side of the elevator car 21 as shown in FIG. 8(a). When deployed, the rectangular plate member 82 is rotated about the hinge 81 by the first deployment means (not shown in FIG. 8) as shown in FIG. 8(b) to be spread between the elevator car 21 and the hoistway H. As the rectangular plate member 82 is spread, the triangular plate member 84 is rotated about the spring hinge 83 as shown in FIG. 8(c) by the spring force of the spring hinge 83. Then, when all of the rectangular plate members 82 and triangular plate members 84 attached to the four outer sides of the elevator car 21 are deployed, a partition is formed that separates the space in the passageway H into upper and lower sections.

At this time, the first deployment means for rotating the rectangular plate-shaped member 82 to spread it between the elevator car 21 and the hoistway H may be composed of a biasing means such as a spring 85 and a stopper 86 that can be released by a motor, an electromagnet, or the like, as shown in FIG. 9. FIG. 9 is a diagram showing a first configuration example of the first deployment means. FIG. 9 is a side view of the space between one outer surface of the elevator car 21 and the hoistway H. The spring 85 is disposed between the rectangular plate-shaped member 82 in the stored state and the outer surface of the elevator car 21, and elastically biases the rectangular plate-shaped member 82 in a direction away from the elevator car 21. At this time, the spring 85 is attached to either the rectangular plate-shaped member 82 or one of the outer surfaces of the elevator car 21. In the stored state, the stopper 86 abuts against the hoistway H side of the rectangular plate-shaped member 82 as shown in FIG. 9(a) to limit the movement of the rectangular plate-shaped member 82 in a direction away from the elevator car 21. On the other hand, when unfolding, the stopper 86 is released by a motor or the like, as shown in FIG. 9(b). When the stopper 86 is released, the rectangular plate member 82 is biased by the spring 85 in a direction away from the elevator car 21 and rotates, and is unfolded between the elevator car 21 and the hoistway H.

As shown in FIG. 9, a cushioning material 821 made of a flexible material such as rubber, resin, or sponge can be attached to the end of the rectangular plate member 82 on the hoistway H side so that this cushioning material is pressed against the hoistway H side when deployed. This can further improve the smoke blocking ability of the elevator smoke blocking device. Also, as shown in FIG. 9, a first concave storage section 123 can be provided on the outer surface of the elevator car 21 to store the first smoke blocking member 131 in a stored state.

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

As another configuration for forming a partition in the elevator shaft H, for example, as shown in Figs. 11 and 12, a link mechanism 90 is used to spread a flexible sheet material 96 between the elevator car 21 and the elevator shaft H. Figs. 11 and 12 are diagrams showing a second modified example of the first smoke blocking member. This configuration can also be applied to the second smoke blocking member. Fig. 11 shows the first smoke blocking member 231 in a stored state. Fig. 12 shows the first smoke blocking member 231 in an unfolded state. Figs. 11 and 12 are views from below of the configuration of the first smoke blocking member 231 near one corner of the elevator car 21.

The link mechanism 90 is composed of a plurality of links 92 connected by connecting parts 91 so as to be relatively rotatable. The link mechanism 90 is attached to the outer surface of the elevator car 21 and extends from the elevator car 21 toward the hoistway H. A rod-shaped pressing material 94 is attached to the hoistway H side of the link mechanism 90, approximately parallel to the wall of the hoistway H. This pressing material 94 is pressed against the wall of the hoistway H when the link mechanism 90 is extended toward the hoistway H. In addition, a sheet material 96 is attached to the link mechanism 90 via the pressing material 94. The sheet material 96 is a flexible, non-breathable sheet, and has a size that allows it to be spread between the elevator car 21 and the hoistway H when the link mechanism 90 is extended. When the link mechanism 90 is contracted toward the elevator car 21, the sheet material 96 is stored on the outer surface side of the elevator car 21 in a small folded state, as shown in FIG. 11. For example, the sheet material 96 is folded at the location indicated by the arrow C.

A first deployment means consisting of a motor or the like is connected to the link mechanism 90. The link mechanism 90 is extended by the first deployment means, such as a motor (not shown), as shown in FIG. 12, so that the sheet material 96 is spread between the elevator car 21 and the hoistway H. At this time, the sheet material 96 is pressed against the wall of the hoistway H by the pressing member 94.

Here, the link mechanism 90 has been described as extending and retracting from the elevator car 21 toward the hoistway H by a rotational motion, but it may also extend and retract by a sliding motion, for example. The sheet material 96 may also be folded in an accordion-like shape for storage. The sheet material 96 may also be made of one or more sheets, or may be bag-shaped.

In the above first embodiment, the elevator smoke blocking device 30 is described as having both the first smoke blocking member 31 deployed by the first deployment means and the second smoke blocking member 36 deployed by the second deployment means 37, but this is not limited to the above. Since the first smoke blocking member 31 and the second smoke blocking member 36 each independently exert the effect of suppressing the movement of smoke through the elevator shaft H, only one of them may be provided.

In addition, in the first embodiment, the first smoke blocking member 31 is attached to a position above the entrance 25 of the elevator car 21, but instead, for example, it may be attached to a position below the entrance 25. In this case, in smoke blocking operation, the elevator control unit 40 moves the elevator car 21 to the landing on the floor one floor above the fire floor F and deploys the first smoke blocking member 31, as shown in FIG. 13. As a result, the partition position S at which the space in the elevator shaft H is partitioned into upper and lower parts by the deployed first smoke blocking member 31 is between the landing entrance 55 provided between the landing on the fire floor F and the elevator shaft H and the landing entrance 55 provided between the landing on the floor one floor above and the elevator shaft H. As a result, even if smoke from a fire enters the space of the elevator shaft H from the landing entrance/exit 55 on the fire floor F, the presence of the deployed first smoke blocking member 31 can prevent the smoke from spreading above the partition position S.

The first smoke blocking member 31 may also be attached to a position that passes through the vertical entrance/exit 25 of the elevator car 21. In this case, as shown in FIG. 14, the combination of the first smoke blocking member 331 and the second smoke blocking member 36 divides the inside of the elevator shaft H into upper and lower sections.

[Second embodiment]
Hereinafter, an elevator system according to the second embodiment will be described with reference to FIG. 15. The elevator system according to the second embodiment differs from the first embodiment in that it has a plurality of elevator cars 21a, 21b in one elevator shaft H. It also differs from the first embodiment in that the elevator car 21a is equipped with a first smoke blocking member 31a, the elevator car 21b is equipped with a first smoke blocking member 31b, and neither of the elevator cars 21a, 21b is equipped with a second smoke blocking member. The other points are the same as those of the first embodiment. In the following description, only the differences will be described, and the description of the same configuration as the first embodiment will be omitted.

In the second embodiment, during smoke blocking operation, the elevator control unit 40 moves all elevator cars 21a, 21b in the elevator shaft H to the same position (for example, fire floor F) in the elevator shaft H as shown in FIG. 15, and then deploys the first smoke blocking members 31a, 31b attached to each elevator car 21a, 21b. As a result, the deployed positions of the first smoke blocking members 31a, 31b are the same in the vertical direction of the elevator shaft H, and the combination of the deployed first smoke blocking members 31a, 31b divides the elevator shaft H into upper and lower sections.

Note that FIG. 15 illustrates an example in which the first smoke blocking members 31a, 31b are attached to the elevator cars 21a, 21b at the same mounting positions, but the mounting positions may differ. When the mounting positions differ, the stopping positions of the elevator cars 21a, 21b in the elevator shaft H are determined so that the positions at which the first smoke blocking members 31a, 31b are deployed are the same in the vertical direction of the elevator shaft H.

In addition, in each of the above embodiments, the horizontal cross section of the elevator car 21 is generally rectangular, but it may be circular or elliptical, or may be polygonal, such as pentagonal or hexagonal. In addition, in each of the above embodiments, an elevator car with one entrance/exit is illustrated, but it may have two or more entrances. In that case, multiple second smoke blocking members may be provided corresponding to the respective entrances.

In addition, in each embodiment, conventional smoke blocking devices may be installed at multiple locations on the landing entrances or interior walls of the elevators on each floor. This allows the smoke blocking function to be maintained for a longer period of time in the event of a fire.

LIST OF SYMBOLS 10 Elevator device 20 Elevator 22 Hoist 23, 123 First storage section 24 Second storage section 25 Entrance/exit 30 Elevator smoke shielding device 31, 131, 231, 31a, 31b, 331 First smoke shielding member 32 First deployment means 36 Second smoke shielding 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 Landing entrance/exit 81 Hinge 82 Rectangular plate-shaped member 83 Spring-loaded hinge 84 Triangular plate-shaped member 85 Spring 86 Stopper 87 Rotating shaft 88 Motor 90 Link mechanism 91 Connection portion 92 Link 94 Pressing material 96 Sheet material 821 Cushioning material F Fire floor H Elevator S Partition location

Claims (9)

a first smoke blocking member that is attached in a stored state to at least one outer surface of an elevator car ascending and descending in the hoistway, and that, when deployed, is spread between the elevator car and the hoistway over all outer surfaces of the elevator car that face the hoistway, and divides a space in the hoistway into upper and lower parts;
and a first deployment means for deploying the first smoke shielding member. a second smoke blocking member that is attached in a stored state to an outer surface of the elevator car on the side where an entrance is provided, and that, when deployed, spreads between the elevator car and the hoistway around the entire periphery of the entrance, and divides a space in the hoistway into a space between the entrance and the hoistway and another space;
2. The elevator smoke shielding device according to claim 1, further comprising: a second deployment means for deploying the second smoke shielding member. The first smoke blocking member is an expansion member having an internal space and expanding when the internal space is filled with a fluid,
3. The elevator smoke suppression device according to claim 1, wherein the first deployment means fills the internal space with the fluid. The first smoke blocking member has a plurality of plate-shaped members that are folded and stored,
3. The elevator smoke suppression device according to claim 1, wherein the first unfolding means unfolds the folded plate members between the elevator car and the hoistway. the first smoke blocking member includes a link mechanism attached to an outer surface of the elevator car and extending from the elevator car toward the hoistway, and a sheet material attached to the link mechanism;
3. The elevator smoke suppression device according to claim 1, wherein the first deployment means extends the link mechanism from the elevator car toward the hoistway, thereby spreading the sheet material between the elevator car and the hoistway. The elevator smoke suppression device according to any one of claims 1 to 5,
The elevator car;
and a control means for, when a fire detection signal is received from a fire detector installed in a building in which the elevator shaft is provided, moving the elevator car so that a partition position at which the first smoke-blocking member divides the space in the elevator shaft into upper and lower parts is above a landing entrance/exit provided between the landing of the floor where a fire is detected and the elevator shaft, and for deploying the first smoke-blocking member by the first deployment means. The elevator system according to claim 6, wherein when the control means receives the fire detection signal, the control means moves the elevator car so that the partition position is between a landing entrance provided between the landing of the floor where the fire was detected and the elevator shaft, and a landing entrance provided between the landing of the floor one level above the floor where the fire was detected and the elevator shaft. The elevator system according to claim 6 or 7, wherein the elevator car has a recessed storage section in which the first smoke blocking member is attached on at least one of the outer surfaces. a second smoke blocking member that is attached in a stored state to an outer surface on a side where an entrance of an elevator car ascending or descending within the hoistway is provided, and that, when deployed, spreads between the elevator car and the hoistway around the entire periphery of the entrance, and divides the space within the hoistway into a space between the entrance and the hoistway and another space;
and a second deployment means for deploying the second smoke shielding member.

Images