Shelter elevator

Abstract

To provide a shelter elevator that enables the elderly and the disabled to quickly evacuate to a shelter without applying a physical burden to such people.SOLUTION: A shelter elevator 1 is installed in a room 100a of a shelter 100. The elevator 1 has a guide column 20, a raising / lowering unit 10, and a connection wire device 30. The raising / lowering unit 10 is provided with a seat portion 11 and is slidably attached to the guide column 20 extending in a raising / lowering direction D1. The connection wire device 30 has a connection wire 31 and an adjustment unit 32 capable of winding and unwinding the connection wire 31. The adjustment unit 32 is attached to a base 13 positioned at a lower end of the raising / lowering unit 10, and an end of the connection wire 31 is connected to a door body 150. In accordance with a rotation of the door body 150, the raising / lowering unit 10 raises / lowers in the raising / lowering direction D1. The seat portion 11 is raised / lowered in the raising / lowering direction D1 by a second power cylinder 16 (a seat portion raising / lowering device) extending and shortening the piston portion 16a.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an elevator for a shelter that rises and falls as a single-wing door is opened and closed. [Background technology]

[0002] In the Great East Japan Earthquake, a massive tsunami claimed many lives. To protect oneself from such a massive tsunami, one effective disaster prevention measure is to quickly evacuate to higher ground before the tsunami strikes. However, if a triple earthquake occurs in the Tokai, Tonankai, and Nankai regions, it is predicted that there will be areas where a 30-meter-high tsunami will strike just five minutes after the earthquake. Evacuating to higher ground in such a short time is extremely difficult for young children, the elderly, and people with disabilities. Even if people were to evacuate to an evacuation building, climbing the high stairs would be difficult.

[0003] As a countermeasure when a tsunami or tsunami fire is predicted, it is possible to consider evacuating to an underground or semi-underground shelter set up close to one's home, such as in one's own garden. By quickly evacuating to an underground or semi-underground shelter when an earthquake occurs and escaping after the tsunami has passed, people can be protected from tsunami disasters. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6987421 Summary of the Invention [Problem to be solved by the invention]

[0005] However, doors for underground and semi-underground shelters must be robust, as they must be able to withstand the force of tsunami waves and the impact of drifting debris. This inevitably limits the size of the doors, and evacuating to an underground shelter requires passing through a narrow space. This can be extremely difficult for elderly people and those with mobility issues.

[0006] The present invention has been made in light of these problems, and aims to provide a shelter elevator that allows elderly people and people with disabilities to evacuate to the shelter quickly without putting a physical strain on them.

[0007] The invention to solve the above problem is a shelter elevator that is installed inside a shelter having a floor, side walls, a ceiling, and a door body that opens and closes an opening in the ceiling, and is equipped with a lifting section on which a seat is provided, a guide pillar that extends along the lifting direction, and a connecting wire device that connects the lifting section and the door body, and is characterized in that the lifting section is slidably attached to the guide pillar, and rises in the lifting direction in synchronization with the door body opening the opening, and descends in the lifting direction in synchronization with the door body closing the opening.

[0008] According to this configuration, the lifting section on which the seat is provided rises in the lifting direction in synchronization with the door body opening the opening, and also falls in the lifting direction in synchronization with the door body closing the opening. Therefore, under certain conditions, it is possible to create a state in which a person can sit on the lifting section at the same time that the door body opens the opening, and it is also possible to create a state in which the lifting section is placed on the floor at the same time that the door body closes the opening.

[0009] Preferably, the door body is a single-opening type, and when the door body rotates from a state in which the opening is closed toward the direction from the floor toward the ceiling, the opening is opened and the lifting section rises in the lifting direction in synchronization, and when the door body rotates from a state in which the opening is open toward the direction from the ceiling toward the floor, the opening is closed and the lifting section descends in the lifting direction in synchronization.

[0010] With this structure, the door body is a single-wing type, so the opening can be closed while remaining almost flush with the upper surface of the ceiling. Also, compared to other types, such as sliding doors that move in-plane on the ceiling, this type of door has better watertightness for the opening and can also reduce costs.

[0011] Preferably, the wire device has a connecting wire connected to the door body, and an adjustment portion that can adjust the connection length of the connecting wire.

[0012] According to this configuration, the wire device has a connecting wire that connects to the door body and an adjustment section that can adjust the connection length of the connecting wire, so that the lifting section can be set to a predetermined height without considering the relative position of the door body and the lifting section.

[0013] Preferably, one end of the guide pole is detachably connected to the floor and the other end is detachably connected to the ceiling.

[0014] With this configuration, one end of the guide pole is detachably connected to the floor and the other end to the ceiling, making the guide pole strong and less prone to deformation. Also, by removing the guide pole, the interior space of the shelter can be used more efficiently.

[0015] Preferably, the lifting section has a seat lifting device that can lift and lower the seat in the lifting direction.

[0016] With this configuration, the lifting section has a seat lifting device that can raise and lower the seat in the lifting direction, so when evacuating into the shelter room, it is possible to adjust the seating position to a comfortable one. In particular, when evacuees transfer from the ceiling to the lifting section, they can assume a natural and comfortable seating position.

[0017] Preferably, the adjustment unit is characterized in that it can adjust the connection length of the connection wire in synchronization with the raising or lowering of the lifting unit.

[0018] With this configuration, by adjusting the connection length of the connecting wire in synchronization with the ascent or descent of the lifting section, the seat can be positioned so that evacuees can easily sit down at the same time that the door body completes opening the opening. Also, a position that makes it easy for evacuees to step down onto the floor can be created at the same time that the door body completes closing the opening. [Brief explanation of the drawings]

[0019] [Figure 1] (a) is a front cross-sectional view of a shelter in which a shelter elevator is installed, and (b) is a side cross-sectional view of the same. [Figure 2] FIG. 2 is a plan cross-sectional view of a guide post and a slide ring portion. [Figure 3] FIG. 10 is a side cross-sectional view illustrating the pivotal state of the door body. [Figure 4] 1(a) is a side cross-sectional view illustrating the state in which the packing is attached, and FIG. [Figure 5] 10(a) and 10(b) are side cross-sectional views illustrating the opening and closing of the door body and the state of the packing. [Figure 6] 1(a) is a side cross-sectional view illustrating the installation state of the locking mechanism, and FIG. 1(b) is a front cross-sectional view of the same. [Figure 7] 5(a) to 5(c) are cross-sectional views illustrating the operation of the locking mechanism. [Figure 8] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of a shelter elevator 1 (hereinafter referred to as elevator 1) of the present invention will be described in detail with reference to FIGS.

[0021] As shown in Figures 1(a) and 1(b), an elevator 1 is installed in a room 100a of a shelter 100. A ladder 50 is also installed in the room 100a together with the elevator 1. The shelter 100 is a roughly rectangular parallelepiped housing having a floor 110, side walls 120, and a ceiling 130, and is a so-called underground shelter, with almost all of its parts buried underground. The type of shelter is not limited to this, and the extent to which it is buried underground is not limited; for example, it may be a semi-underground shelter, with roughly half of the shelter buried underground.

[0022] The floor 110, side walls 120, and ceiling 130 are made of reinforced concrete, and the structural thickness is 30 cm in the example shown. The thickness of the floor 110, side walls 120, and ceiling 130 is preferably at least 20 cm, and more preferably 50 cm or more. The structural thickness can be determined appropriately taking into consideration the radiation shielding performance required for safe evacuation in the event of a nuclear or tsunami disaster, and the external forces applied to the shelter 100.

[0023] An opening 140 is provided in the ceiling 130, and the opening 140 is opened and closed by a single-wing door body 150 that rotates left and right around a hinge 151 (see FIG. 1(b)). The size of the opening 140 is preferably set to a size that allows evacuation into the room 100a using the lifting unit 10 and the ladder 50 at the same time. In FIG. 1(a), a person evacuating using the ladder 50 is evacuating facing forward, while a person evacuating using the lifting unit 10 is evacuating facing to the side. The width in the longitudinal direction DL is preferably wide enough to allow two people to evacuate at the same time in this state. In addition, the width in the transverse direction DS is preferably wide enough to allow both a person evacuating using the ladder 50 and a person evacuating using the lifting unit 10 to evacuate.

[0024] The door body 150 is of a single-wing type, and is rotatably connected to the ceiling 130 via a hinge 151. A piston portion 41 of a power cylinder 40 is rotatably connected to a lower surface 150L of the door body 150. A main body portion 42 of the power cylinder 40 is rotatably connected to the side wall 120. When the door is opened, the power cylinder 40 is operated to extend the piston portion 41, causing the door body 150 to rotate around the hinge 151 in the direction from the floor 110 to the ceiling 130. When the door is closed, the piston portion 41 is retracted and contracted, causing the door body 150 to rotate around the hinge 151 in the direction from the ceiling 130 to the floor 110.

[0025] As shown in FIG. 3 , the opening 140 is a rectangular hole in a plan view. The end-facing surface 145 facing the pivoting end 155 of the door body 150 is inclined. This inclination gradually narrows the lateral width of the opening 140 downwards in the figure, preventing the opposing end of the door body 150 from interfering with the end-facing surface 145 when the door body 150 pivots. For this reason, the pivoting end 155 is an inclined surface that can be connected to the end-facing surface 145 face-to-face. The other three surfaces, excluding the end-facing surface 145, are not inclined and are either flat surfaces perpendicular to the floor 110 or perpendicular to the pivot axis of the door body 150. The pivot axis is the central axis around which the door body 150 pivots about the hinge 151.

[0026] One end of the ladder 50 is connected to the floor 110, and the other end is connected to the door body 150 in a rotatable manner. The ladder 50 is also structured to be able to expand and contract as the door body 150 rotates in the opening and closing directions, allowing for this rotation.

[0027] The elevator 1 has a guide column 20, a lifting unit 10, and a connecting wire device 30. The lifting unit 10 is provided with a seat 11 on which an evacuee can sit, and a slide ring 15 slidably attached to the guide column 20. The seat 11 is fixed to a base 13 via a second power cylinder 16 (seat lifting device) that serves as a seat lifting device, and the slide ring 15 is fixed to an end of the base 13. The seat 11 is exemplified as a saddle-type seat on which an evacuee can straddle, and is equipped with a handle 12 for stabilizing the seated position. The seat 11 is not limited to a saddle-type seat, and may also be a chair-type seat on which the evacuee can sit. The seat 11 rises and falls in a lifting direction D1 as the second power cylinder 16 expands and contracts a piston 16a (see FIG. 8).

[0028] The guide pillar 20 extends in the lifting direction D1, and one end is connected and fixed to the floor 110 and the other end is connected and fixed to the ceiling 130 near the opening 140 by bolts (not shown). The guide pillar 20 can be removed from the floor 110 and the ceiling 130 by removing the bolts.

[0029] The connecting wire device 30 has a connecting wire 31 and an adjustment unit 32 that can wind or unwind the connecting wire 31. The adjustment unit 32 is attached to a base 13 located at the lower end of the lifting unit 10, and an end of the connecting wire 31 is connected to a door body 150. In this embodiment, a winch is exemplified as the adjustment unit 32.

[0030] 2, the slide ring 15 and the guide pillar 20 are rectangular tubes, and the inner surface of the slide ring 15 is in contact with the outer surface of the guide pillar 20. In addition, in a plan view, the guide pillar 20 is located in the internal region of the slide ring 15. As a result, the slide ring 15 moves up and down in the lifting direction D1 along the guide pillar 20 while its rotation around its axis is restricted. The lifting direction D1 here refers to the vertical direction, the direction perpendicular to the floor 110, or the direction perpendicular to the ceiling 130.

[0031] As shown in Figures 1(a), (b), and 3, the door body 150 is a single-wing door, and is rotatably connected to the ceiling 130 via a hinge 151. The door body 150 also has an annular member 153 on its outer periphery. When the door body 150 closes the opening 140, the outer edge of the annular member 153 comes into contact with the ceiling 130 via a packing 160. The thickness of the door body 150 is set to the same thickness as the ceiling 130, and is sized so that it can be inserted into the opening 140. The door body 150, like the ceiling 130, is made of reinforced concrete.

[0032] A stopper 152 that limits the rotation of the door body 150 is attached to the hinge 151. When the stopper 152 comes into contact with the upper surface of the ceiling 130, the rotation of the door body 150 in the upward direction (the direction from the floor 110 toward the ceiling 130) is stopped. Also, when the annular member 153 comes into contact with the upper surface of the ceiling 130 via the packing 160, the rotation of the door body 150 in the downward direction (the direction from the ceiling 130 toward the floor 110) is stopped.

[0033] 4(a) and (b), the packing 160 has a first packing 161 and a second packing 162, and is attached to the upper surface of the ceiling 130 so as to surround the opening 140. The first packing 161 is mainly intended to prevent rainwater from entering, and is provided on the outer periphery of the second packing 162. The second packing 162 is mainly intended to prevent water from entering the interior 100a when the shelter 100 is submerged due to a tsunami or other event.

[0034] The first packing 161 is a sponge silicone type, and the second packing 162 is a pressure-resistant silicone type. The rising height of the second packing 162 is set lower than that of the first packing 161. In this embodiment, the number of first packing 161 is one and the number of second packing 162 is two, but this is not limiting.

[0035] As shown in FIG. 5(a), when the door body 150 closes the opening 140, the force of the power cylinder 40 is not applied to the door body 150, and only the weight of the door body 150 is applied to the packing 160. In this state, a small gap is generated between the second packing 162 and the annular member 153, and only the first packing 161 is in contact with the annular member 153. Creating this state prevents rainwater from entering the building. In addition, in the event of a tsunami, when a water level gauge installed on the ground detects that the surrounding water level has exceeded a certain level, the power cylinder 40 is operated to apply a force that pulls the door body 150 downward. As a result, the first packing 161 is compressed and its rising height gradually decreases, and the annular member 153 comes into contact with the second packing 162 and then presses against the second packing 162 (see FIG. 5(b)). By creating this state, the first packing 161 and the second packing 162 cooperate to prevent water from entering the room 100a.

[0036] In order to maintain the state in which the door body 150 closes the opening 140, a locking mechanism 170 is provided at a position facing the power cylinder 40, as shown in FIGS. 6(a) and 6(b). As shown in FIGS. 7(a) to 7(c), when the door body 150 closes the opening 140, the locking mechanism 170 restricts the rotational displacement of the door body 150 in the opening direction by inserting a latch 171, which is moved by a spring 172, into a fitting hole 173a. The latch 171 is attached to the underside of the ceiling 130, and a fitting member 173, which is provided with a fitting hole 173a, is attached to the door body 150 in a state facing the latch 171.

[0037] When the door main 150 is in the state shown in Figure 5(a), in other words, when the annular member 153 is in contact with only the first gasket 161, the locking mechanism 170 is adjusted to the state shown in Figure 7(b), and when the door main 150 is in the state shown in Figure 5(b), in other words, when the annular member 153 is in contact with both the first gasket 161 and the second gasket 162, the door body is adjusted to the state shown in Figure 7(c).

[0038] The procedure for evacuation to the room 100a of the shelter 100 will be described.

[0039] Before evacuees evacuate, the shelter is in the state shown in Figure 5(a), with the door body 150 closing the opening 140. The base 13 of the lifting section 10 is placed on the floor 110. Furthermore, the annular member 153 is in contact with the first packing 161, i.e., in a state where it can prevent rainwater from entering the shelter room 100a.

[0040] Furthermore, when evacuating, the power cylinder 40 is operated to extend the piston portion 41. The operation of the power cylinder 40 is remotely controlled using a remote control. As a result, the door body 150 rotates from the floor 110 toward the ceiling 130. The rotation is stopped when the stopper 152 contacts the ceiling 130. At the same time, the ladder 50 extends, and the lifting unit 10 rises in the lifting direction D1. The adjustment unit 32 is then operated to wind up the connection wire 31, shortening the connection length. This causes the lifting unit 10 to rise further, and its rise is stopped when the slide ring portion 15 contacts the underside of the ceiling 130. Furthermore, the second power cylinder 16 is operated to extend the piston portion 16a, thereby raising the seat portion 11 in the lifting direction D1. Preferably, the seat portion 11 is raised to a height that at least protrudes above the upper surface of the ceiling 130.

[0041] After sitting on the seat 11 of the elevator 1, the door body 150 is rotated. When the door body 150 closes the opening 140, the rotation of the door body 150 stops and the descent of the lifting unit 10 also stops. At this time, a gap is created between the base 13 and the floor 110. By operating the adjustment unit 32 to lengthen the connection length of the connection wire 31, the base 13 can be lowered to the floor 110 and installed.

[0042] By placing the door body 150 in the state shown in Figure 5(b), the first gasket 161 and the second gasket 162 come into contact with the annular member 153, and the gap of the opening 140 is sealed watertight. At the same time, the locking mechanism 170 is placed in the state shown in Figure 7(c), i.e., the door body 150 is in a locked state. This prevents flooding of the shelter room 100a even if the shelter 100 is placed in water at a predetermined depth. Furthermore, even if the shelter is affected by wave force or flowing water, the door body 150 keeps the opening 140 closed, preventing it from opening inadvertently.

[0043] This embodiment is merely an example, and modifications can be made without departing from the technical spirit of the present invention. For example, it is preferable that the door body be housed in a housing (not shown) that allows access. By housing the door body in the housing, rainwater can be prevented from entering the room 100a even if the opening 140 is left open. Furthermore, by entering the housing, one can immediately use the ladder 50 and the lifting unit 10 to enter the room 100a. [Industrial Applicability]

[0044] By utilizing the shelter elevator according to the present invention, people with disabilities can easily access underground shelters, which will greatly contribute to the spread of underground shelters and has great industrial applicability. [Explanation of symbols]

[0045] 1: Shelter elevator (elevator) 10: Lifting section 11: Seat part 16: Second power cylinder (seat lifting device) 20: Guide pillar 30: Connecting wire device 31: Connecting wire 32:Adjustment section 100: Shelter 100a: Indoor 110: Floor 120: Side wall 130: Ceiling 140: Opening 150: Door body D1: Up / down direction

Claims

1. A shelter elevator installed inside a shelter having a floor, side walls, a ceiling, and a door body that opens and closes an opening provided in the ceiling, a lifting section on which a seat is provided; A guide pillar extending along the lifting direction; a connecting wire device that connects the lifting section and the door body, The elevator for a shelter is characterized in that the lifting section is slidably attached to the guide column, and the door body rises in the lifting direction in synchronization with the opening of the opening, and the door body descends in the lifting direction in synchronization with the closing of the opening.

2. The shelter elevator described in claim 1, characterized in that the door body is a single-opening type, and when the door body rotates from a state in which the opening is closed toward the direction from the floor toward the ceiling, the opening is opened and the lifting section rises in the lifting direction in synchronization.

3. The shelter elevator described in claim 1, characterized in that the door body is a single-opening type, and when the door body rotates from a state in which the opening is open toward the direction from the ceiling toward the floor, the opening is closed and the lifting section descends in the lifting direction in synchronous.

4. 2. The elevator for a shelter according to claim 1, wherein the connecting wire device has a connecting wire connected to the door body and an adjustment portion that can adjust the connection length of the connecting wire.

5. 2. The elevator for a shelter according to claim 1, wherein one end of the guide pillar is detachably connected to the floor and the other end is detachably connected to the ceiling.

6. 2. The shelter elevator according to claim 1, wherein the lifting section has a seat lifting device that can lift and lower the seat in a lifting direction.

7. 5. The elevator for a shelter according to claim 4, wherein the adjustment unit can adjust the connection length of the connecting wire in synchronization with the ascent or descent of the lifting unit.

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