Disaster prevention storage device

The disaster prevention storage device in elevators addresses the lack of heat protection by providing a temperature-adjusted storage section with emergency supplies, ensuring passenger safety during prolonged entrapment.

JP2025078203APending Publication Date: 2025-05-20MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
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Patent Information

Application Number
JP2023190614
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-08
Publication Date
2025-05-20

AI Technical Summary

Technical Problem

Existing disaster prevention devices for elevators do not provide adequate protection against heat rise in the elevator car during prolonged entrapment due to malfunctions.

Method used

A disaster prevention storage device installed outside the boarding space in the elevator car, comprising a storage section with a temperature adjustment mechanism to lower the temperature, an opening/closing mechanism, and a locking mechanism for emergency access.

Benefits of technology

Effectively protects passengers from heat by maintaining emergency supplies at a low temperature, ensuring passenger safety during extended confinement.

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Abstract

To provide a disaster prevention storage device capable of effectively providing heat protection for a passenger when the passenger is trapped in a car.SOLUTION: A disaster prevention storage device 20 installed in an elevator car comprises a storage part 21 installed protruding into a hoistway outside a boarding space for passengers 10, and an opening / closing part 23 installed in the car 10 to open / close the storage part 21. It is characterized that it comprises a temperature adjusting part 22 to maintains low temperature inside the storage part.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a disaster prevention storage device, and more particularly to a disaster prevention storage device installed in an elevator car. [Background technology]

[0002] Generally, elevators are equipped with a function that, when it detects the occurrence of a disaster such as an earthquake, makes an emergency stop at the nearest floor and waits with the doors open. Also, if for some reason the elevator does not stop at the nearest floor, it is equipped with an emergency light that turns on and an emergency intercom that allows contacting the outside. However, in the event of a large-scale disaster or widespread power outage, passengers may be trapped in the elevator car for a long period of time. In preparation for such an event, some elevators are equipped with a storage box in the elevator car that contains emergency food, etc.

[0003] For example, Prior Patent Document 1 discloses a disaster prevention device for an elevator that cannot be tampered with under normal circumstances, can be easily opened and closed in an emergency, and allows efficient maintenance work. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-120290 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, as mentioned above, even the device disclosed in Patent Document 1 does not provide any measures to protect passengers from heat when they are trapped in the car for a long period of time. This causes a problem that there is a lack of measures to protect passengers from heat caused by the rise in temperature inside the car when passengers are trapped in the car due to elevator malfunctions, etc. [Means for solving the problem]

[0006] This disaster prevention storage device is provided in an elevator car, and is characterized by comprising a storage section provided outside the boarding space where passengers board the car and protruding into the elevator shaft, an opening / closing section provided within the car for opening and closing the storage section, and a temperature adjustment section for lowering the temperature inside the storage section. Effect of the Invention

[0007] According to the disaster prevention storage device of the present invention, even if passengers are trapped inside a car, heat protection measures can be effectively provided for passengers. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a car in an elevator as an example of an embodiment. [Diagram 2] FIG. 4 is a diagram illustrating an installation position of a storage unit according to an embodiment. [Diagram 3] 1 is a diagram showing a configuration of a disaster prevention storage device according to an embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a disaster prevention storage device according to the present invention will be described in detail with reference to the drawings. The embodiment described below is merely an example, and the present invention is not limited to the following embodiment. In addition, the present invention includes a form obtained by selectively combining multiple embodiments and modified examples described below.

[0010] A car 10 of an elevator 1 as an example of an embodiment will be described with reference to Fig. 1. Fig. 1 is a diagram showing an elevator 1 as an example of an embodiment.

[0011] The elevator 1 is an elevator device that transports people and objects by having a car 10 for carrying people and objects, which ascends and descends in a hoistway and stops at landings on each floor. The elevator 1 is equipped with a hoist 2 as a drive device for ascending and descending the car 10. In the hoistway, a wire rope 4 is installed that is wound around the hoist 2 and a deflector 3 and has one end connected to the top of the car 10, and a counterweight 5 is connected to the other end of the wire rope 4.

[0012] The elevator 1 is equipped with a control device 30 that is installed at the top of the elevator shaft. The control device 30 raises and lowers the car 10 by controlling the rotation direction and speed of the motor of the hoisting machine 2 based on signals from hall call buttons and the like. The control device 30 and the car 10 are also connected by a control cable (not shown) that bundles together signal lines for transmitting and receiving control signals and power lines for supplying power to the car 10.

[0013] The disaster prevention storage device 20 according to this embodiment will be described in detail with reference to Fig. 1 to Fig. 3. Fig. 2 is a diagram showing the installation position of the storage section 21 of the disaster prevention storage device 20 according to this embodiment. Fig. 3 is a diagram showing the configuration of the disaster prevention storage device 20 according to this embodiment.

[0014] As shown in Fig. 2, the car 10 according to this embodiment is composed of a floor 11, a wall 12 erected around the floor 11, and a ceiling 13. A disaster prevention storage device 20 is provided outside the boarding space where passengers board the car 10. In this case, since the disaster prevention storage device 20 is installed outside the boarding space, a storage section 21 of the disaster prevention storage device 20 is installed protruding into the elevator shaft. As will be described in detail later, the storage section 21 may be installed under the wall 12 or floor 11 inside the car 10. The storage section 21 is configured to store emergency supplies such as drinking water, a first aid kit, and a simple toilet inside and to provide them to passengers in an emergency.

[0015] The storage section 21 may be composed of an outer box, an inner box, and a heat insulating material. The outer box is made of, for example, steel. The inner box is made of, for example, resin. The inner box is placed inside the outer box. The heat insulating material is, for example, a vacuum heat insulating material or a molded heat insulating material. The vacuum heat insulating material is, for example, a heat insulating material including a porous material and a film that seals the porous material in a vacuum state. The molded heat insulating material is a heat insulating material that is molded in advance to match the shape of the place where it is to be placed. The heat insulating material is placed in the space between the outer box and the inner box.

[0016] The disaster prevention storage device 20 includes a temperature adjustment unit 22 for lowering the temperature inside the storage unit 21. The temperature adjustment unit 22 sends cooled air to the storage unit 21 to lower the temperature inside the storage unit 21. The temperature adjustment unit 22 is, for example, a cooling mechanism including a compressor, a cooler, and a blower fan. The compressor and the cooler constitute a refrigeration cycle circuit with a condenser and a throttling device. The compressor compresses and discharges the refrigerant in the refrigeration cycle circuit. The condenser condenses the refrigerant discharged from the compressor. The throttling device expands the refrigerant flowing out from the condenser. The cooler cools the air supplied to the storage unit 21 by the refrigerant expanded by the throttling device. Here, the low temperature is, for example, 5°C or lower. It is preferable that the temperature inside the storage unit 21 adjusted by the temperature adjustment unit 22 is appropriately changed according to the type of emergency goods stored in the storage unit 21.

[0017] The temperature adjustment unit 22 may adjust the temperature only during a specified period when there is a surplus of power. For example, the temperature adjustment unit 22 may cool the storage unit 21 only at night when the demand for power is low, avoiding the daytime hours when the demand for power is high. On the other hand, the temperature adjustment unit 22 may only keep the storage unit 21 cold during the daytime hours when the demand for power is high. This reduces the power consumption, and the emergency supplies in the storage unit 21 can be kept at a low temperature with less power.

[0018] The storage unit 21 includes an opening / closing unit 23 that is provided in the car 10 and opens and closes the storage unit 21. The opening / closing unit 23 may be a double door or a single door, or may be a sliding door. The opening / closing unit 23 is preferably configured so that the wall surface or floor surface of the car 10 on which the disaster prevention storage device 20 is installed is flat when the opening / closing unit 23 is closed. In other words, it is preferably configured so that there are no parts that protrude from the wall surface and floor surface of the car 10 when the opening / closing unit 23 is closed.

[0019] When the opening / closing section 23 is a double-leaf door or a single-leaf door, a latch mechanism may be provided as a fixing mechanism for holding the door in a closed state. The latch mechanism opens the door by releasing a latch hooked on a receiving seat. The latch mechanism is, for example, a push latch that releases the latch by pushing the door, thereby opening the door. This prevents the opening of the opening / closing section 23 and eliminates the need to attach a handle or knob for opening and closing, making it possible to make the wall and floor surfaces of the car 10 flatter. This allows the disaster prevention storage device 20 to be installed without reducing the boarding space for passengers to board.

[0020] The opening / closing section 23 is preferably a heat-insulating door equipped with a heat insulating material. The heat-insulating door is composed of, for example, a pair of panels, a panel frame arranged on the periphery of the panels, and a heat insulating material arranged in the space partitioned by the pair of panels and the panel frame. In addition, a packing is preferably provided on the outer edge of the surface of the opening / closing section 23 facing the storage section 21. This prevents air in the storage section 21 from leaking into the car 10, making it easier to keep the temperature in the storage section 21 constant.

[0021] The disaster prevention storage device 20 includes a locking unit 24 that locks the opening / closing unit 23. The locking unit 24 is configured to lock the opening / closing unit 23 in a normal state to prevent passengers from touching the emergency supplies in the storage unit 21, and is configured to open the opening / closing unit 23 in the event of an emergency. The locking unit 24 may be, for example, an electric lock that is configured to be automatically unlocked in the event of an emergency.

[0022] Furthermore, the locking unit 24 installed in the opening / closing unit 23 may unlock the opening / closing unit 23 on the condition that the car 10 has made an emergency stop. In detail, when a position detector (not shown) installed in the hoisting machine 2 detects that the car 10 has stopped in the hoistway instead of stopping at a landing, the control device 30 unlocks the opening / closing unit 23. Furthermore, the locking unit 24 may be unlocked when a remote control center or the like that remotely monitors the elevator 1 determines that unlocking is necessary.

[0023] The locking unit 24 installed in the opening / closing unit 23 unlocks the opening / closing unit 23 on the condition that the power supply to the car 10 is cut off. When the control device 30 connected to the car 10 detects that the power supply to the car 10 is cut off, the control device 30 unlocks the locking unit 24. The locking unit 24 may be configured to be locked when energized but unlocked when the power supply is cut off.

[0024] The installation position of the disaster prevention storage device 20 will be described in detail with reference to FIG.

[0025] The storage section 21 of the disaster prevention storage device 20 is installed on the wall section 12 of the car 10. The storage section 21 of the disaster prevention storage device 20 is preferably installed on the wall section 12 on the rear side of the car 10. The storage section 21 may also be installed under the floor section 11 of the car 10. In this way, the storage section 21 is installed outside the passenger boarding space, and the disaster prevention storage device 20 can be installed so that it can be used by passengers without reducing the boarding space.

[0026] The wall 12 of the car 10 in which the storage unit 21 is installed may be configured to reduce the amount of protrusion of the storage unit 21 into the elevator shaft by increasing the wall thickness toward the inside of the car 10. This allows the placement of the car 10 in the elevator shaft to be similar to the placement of the car 10 in which the disaster prevention storage device 20 is not provided.

[0027] According to the above-mentioned configuration, the emergency supplies arranged in the storage section 21 can be kept at a low temperature. As a result, even if a passenger is trapped inside the car 10, measures against the heat can be effectively taken for the passengers.

[0028] The above embodiment may be appropriately modified in design without impairing the purpose of the present disclosure. For example, in the above embodiment, the storage unit 21 is installed under the wall 12 or floor 11 of the car 10, but may be installed in a trunk room provided in the car 10. The trunk room is provided, for example, at the rear side of the car 10, and has a height of about half that of the car 10. The disaster prevention storage device 20 may also be installed on the wall 12 above the trunk room. This can improve the overall fit when the depth of the disaster prevention storage device 20 is smaller than the depth of the trunk room.

[0029] Storage section 21 may be divided into two regions, a first region surrounded by heat insulating material and having temperature adjustment section 22 installed therein and kept at a low temperature, and a second region without heat insulating material and without temperature adjustment section 22 installed. This allows drinking water, ice packs, etc., which are preferably kept at a low temperature, to be kept at a low temperature by being cooled by temperature adjustment section 22, while portable toilets, first aid kits, etc., which are fine at room temperature, are not cooled and are kept at room temperature. This narrows the region that is kept at a low temperature by temperature adjustment section 22, making it possible to provide passengers with measures to protect them from the heat using less electricity. [Explanation of symbols]

[0030] 1 elevator, 2 hoist, 3 deflector, 4 wire rope, 5 counterweight, 10 car, 11 floor, 12 wall, 13 ceiling, 20 disaster prevention storage device, 21 storage section, 22 temperature control section, 23 opening / closing section, 24 locking section, 30 control device

Claims

1. A disaster prevention storage device provided in an elevator car, A storage section provided outside a boarding space where passengers board the car and protrudes into the elevator shaft; An opening / closing unit that is provided in the car and opens and closes the storage unit; Equipped with A disaster prevention storage device equipped with a temperature control unit for lowering the temperature inside the storage unit.

2. The disaster prevention storage device according to claim 1, further comprising a locking unit that unlocks the opening / closing unit on condition that the elevator car comes to an emergency stop.

3. The disaster prevention storage device according to claim 1, further comprising a locking unit that unlocks the opening / closing unit when power supply to the elevator car is cut off.

4. The disaster prevention storage device according to claim 1 , wherein the storage section is installed on a rear wall of the elevator car.

5. The disaster prevention storage device according to claim 1 , wherein the storage section is installed under a floor of the car.

6. A disaster prevention storage device provided in an elevator car, A storage section installed in a trunk room provided at the rear side of the passenger car; An opening / closing unit that opens and closes the storage unit; Equipped with A disaster prevention storage device equipped with a temperature control unit for lowering the temperature inside the storage unit.

7. The disaster prevention storage device according to any one of claims 1 to 6, wherein the temperature adjustment unit adjusts the temperature only during a predetermined period when there is an excess of power.

Citation Information

Patent Citations

  • Disaster control device for elevator

    JP2009120290A