JP6224385B2 - Floating shelter - Google Patents

Description

  The present invention relates to a floating type shelter that floats on water in the event of a flood such as a tsunami or flood and protects passengers from the flood.

  Many precious lives were lost by the tsunami that struck during the Great East Japan Earthquake. Causes of death were water death caused by tsunami, people who escaped drowning by ships and floats died by colliding with buildings while they were swept away by the tsunami, died in fires such as oil spilled on the water There were various things, such as those who escaped drowning by ships and floats were washed offshore and rescue was not in time.

  Various shelters have been proposed to protect themselves when various disasters such as tsunamis and floods occur (see, for example, Patent Documents 1 to 4).

  Patent Documents 1 to 4 describe a disaster prevention shelter of a substantially spherical watertight hollow structure, and Patent Documents 1 and 4 include a disaster prevention shelter provided with an openable / closable hatch, a ventilation opening, and the like. Have been described. Further, Patent Document 2 includes a frame structure that is an outer shell formed in a spherical shell shape by a rod-shaped connecting portion, and a spherical capsule that can freely rotate inside the frame structure. A dual-structure disaster evacuation device is disclosed.

JP 2004-322939 A JP 2006-158874 A JP 2006-226099 A JP 2013-036180 A

  The shelter described in Patent Document 1 has a sandwich structure having a heat insulating layer formed of foamed urethane, polystyrene foam or the like between an outer shell and an inner shell formed of a highly rigid material such as fiber reinforced resin or aluminum alloy. The shell is adopted.

  However, the fiber reinforced resin does not have heat resistance and heat insulation, and the aluminum alloy does not have heat insulation. For this reason, when the shelter is placed in a high temperature environment such as a water fire, if the outer shell or inner shell is made of fiber reinforced resin or aluminum alloy, the heat insulation layer formed of foamed polystyrene will melt with heat. There is a concern that the buoyancy may be lost and the inside of the shelter may be affected by fire.

  In the shelter described in Patent Document 2, the frame structure is formed of a metal material such as titanium alloy or stainless steel, hard plastic, or the like, and the capsule is formed of a metal material such as titanium alloy. The shelter described in Patent Document 3 is also made of metal. If the outer shell is constructed of metal, there is a concern that the shelter may become hot if the shelter is placed in a high-temperature environment such as a water fire. Further, when the outer shell is constructed of hard plastic, there is a concern that the outer shell may be melted by heat when the shelter is placed in a high temperature environment such as a water fire.

  The shelter described in Patent Document 4 is composed of a laminated member in which a large number of synthetic resins are laminated on the outer shell. FRP (Fiber Reinforced Plastics) resin, roving cloth, FRP resin, core layer, FRP resin, It is a composite material laminated in the order of glass fibers. In Patent Document 4, although FRP resin is described as a material excellent in heat resistance and flame retardancy, it is generally not maintained at 100 ° C. because it is a material impregnated with a plastic material. Therefore, when the shelter is placed in a high temperature environment such as a water fire, there is a concern that the inside of the shelter may become high temperature.

  The present invention has been made in view of the above problems, and provides a water-floating shelter that is less affected by personnel boarded inside than conventional ones even when a water fire occurs.

One aspect of the present invention is a water-tight floating shelter having a watertight structure, in which an outer shell structure material is formed of a core material formed of an unsettled material containing air, and substantially the entire outer surface of the core material. have a, a polyurea resin layer formed by laminating a polyurea resin so as to cover, wherein the polyurea resin layer, and a high particles paint adhesion is more embedded than polyurea resin,
In the floating surface shelter, a part of the particles exposed from the outer surface of the polyurea resin layer is uniformly formed on the outer surface of the polyurea resin layer .

  One of the selective aspects of the present invention is a water-floating shelter characterized in that the outermost surface of the outer shell structural material is coated with a fire-proof paint.

One of the selective aspects of the present invention is a water-floating shelter characterized in that the core material of the outer shell structural material is reinforced on the outer surface side with impact-resistant fibers.

  One of the selective aspects of the present invention is a floating floating shelter characterized in that the core material of the outer shell structural material is formed by combining a plurality of polygonal flat plate members.

One of the selective aspects of the present invention is that the core material of the outer shell structure material is formed by combining a plurality of polygonal flat plate members, and the outer surface side thereof is reinforced with impact-resistant fibers, junction of the polygonal flat plate member, water floating, characterized in that it is reinforced by the second impact resistance fiber mesh size not smaller mesh than the outer surface mesh size of the impact resistance fibers A type shelter.

  One of the selective aspects of the present invention is a water-floating shelter characterized in that the polyurea resin layer is formed by application of a polyurea spray.

  ADVANTAGE OF THE INVENTION According to this invention, even if it encounters a water fire, compared with the past, the water floating type | mold shelter which is hard to be affected by the person who boarded the inside can be provided.

It is a figure which shows the external appearance shape of the water-floating type shelter which concerns on this embodiment. It is a figure which shows the external appearance shape of the water-floating type shelter which concerns on this embodiment. It is a figure which shows the external appearance shape of the water-floating type shelter which concerns on this embodiment. It is a figure which shows the external appearance shape of the water-floating type shelter which concerns on this embodiment. It is a figure which shows the cross-sectional shape of the water-floating type shelter which concerns on this embodiment. It is the figure which showed the outer shell structure of the floating type shelter concerning this embodiment in section. It is a figure which shows an example of the manufacturing method of the water-floating type shelter which concerns on this embodiment.

Hereinafter, the present technology will be described in the following order.
(1) Structure of floating floating shelter:
(2) Method for manufacturing a floating floating shelter:
(3) Summary:

(1) Structure of floating floating shelter:
1-4 is a figure which shows the external appearance shape of the water-floating type shelter which concerns on this embodiment, and FIG. 5 is a figure which shows the cross-sectional shape of the water-floating type shelter which concerns on this embodiment.

  The floating floating shelter 100 shown in these drawings has a watertight structure. In general, the hollow main body 10, the reinforcing frame 20 that reinforces the main body 10, the base 30 attached to the lower part of the main body 10, and the inside and outside of the main body 10 are shown. It has an air pipe 40 that penetrates, a hatch 50 that is attached to the opening H <b> 1 formed in the main body 10, and a window 60 that is attached to the opening H <b> 2 formed in the main body 10.

  The main body 10 has a spheroid-like flat and substantially spherical shape. By adopting a flat and substantially spherical shape, the stability of the main body 10 when floating on the water is improved, and it is strong against rollover. In the example shown in FIGS. 1 to 5, the main body 10 has a hemispherical shell-shaped upper hemispherical member 10 a and a lower hemispherical member 10 b, and a ring-shaped reinforcing frame between the upper hemispherical member 10 a and the lower hemispherical member 10 b. The ring-shaped end portions are joined to each other with 20 interposed therebetween, thereby forming a substantially spherical shape.

  Further, in the present embodiment, a shape that is formed into a substantially spherical shape as a whole by combining a plurality of polygon sides while joining each other is defined as an outer surface shape of the main body 10. In FIG. 1 to FIG. 5, for example, a substantially soccer ball shape in which a hexagon A, a semi-hexagon A ′, and a pentagon B are combined.

  Thus, the design of the main body 10 is improved by forming the outer surface shape by combining a plurality of polygons. In addition, since the main body 10 can be constructed by combining individually created polygonal members, the entire upper hemispherical member 10a and lower hemispherical member 10b can be formed at once, such as die cutting using a mold or the like. The main body 10 can be constructed without using a large-scale device.

  The reinforcing frame 20 is formed of a material that is more resistant to impact than the material of the main body 10 (such as a material having high rigidity and low brittleness), and is formed of a metal such as steel, for example. By interposing the reinforcing frame 20 between the upper hemispherical member 10a and the lower hemispherical member 10b, the main body 10 is resistant to impact from the lateral direction.

  In the present embodiment, since the reinforcing frame 20 is interposed between the upper hemispherical member 10a and the lower hemispherical member 10b, the upper hemisphere is formed so as to make a round around the substantially vertical center of the main body 10 along the side surface shape. A part of the reinforcing frame 20 is exposed to the outer surface from the gap between the member 10a and the lower hemispherical member 10b.

  The base 30 is fixedly attached to the lower part of the lower hemispherical member 10b of the main body 10 and floats by a certain distance from the installation surface when the bottom surface of the base 30 is brought into contact with the installation surface of the floating floating shelter 100. The main body 10 is supported in the state. As a result, when the main body 10 is installed on the land, the main body 10 is stably supported in a predetermined posture, and the substantially spherical main body 10 rolls and breaks, or the contact portion with the installation surface is damaged by its own weight. Can be prevented.

  Further, since the base 30 is made of a material having a specific gravity higher than that of the main body 10, it functions as a ballast when the main body 10 floats on the water, and has a function of stabilizing the main body 10 in a predetermined posture. Thereby, when the main body 10 floats on the water, the posture of the floating floating shelter 100 is stabilized, and the comfort of the passengers in the internal space is improved. In addition, since there is no need to separately install a ballast or the like, the degree of freedom of use of the internal living space is improved.

  The air pipe 40 is provided through the inside and outside of the main body 10. In the example shown in FIG. 5, the main body 10 penetrates through the inside and outside of the main body 10 at the approximate center of the upper surface. The outer surface of the air pipe 40 is fixed to the main body 10 in a watertight manner. Via the air pipe 40, the air in the sealed internal space is ventilated by closing the hatch 50. Further, by providing the ventilation air pipe 40 at a position farthest from the water surface when the floating shelter 100 floats on the water, the possibility of flooding from the opening 42 of the air pipe 40 is reduced.

  The air pipe 40 is bent downward so that the exposed portion 41 exposed to the outside of the main body 10 is in the middle and the opening 42 faces downward. Thereby, even if a flying object such as splash or rain enters the opening 42, the possibility that such a flying object enters the internal space of the main body 10 can be reduced.

  Further, the air pipe 40 may be provided with a shielding member having both waterproofness and air permeability inside the opening 42 or the bent portion closer to the opening 42. The shielding member can be realized by, for example, a non-woven fabric that has both breathability and waterproofness that is spread on the opening 42. By providing such a shielding member, waterproofing and ventilation can be more reliably realized in the air pipe 40. In addition, there is also an effect of preventing inundation when the floating floating shelter 100 is overturned.

  In the example shown in FIG. 5, the air pipe 40 that has entered the inside of the main body 10 extends substantially vertically from the approximate center of the main body 10 to the inner bottom surface of the main body 10, and its lower end is fixed to the inner bottom surface of the main body 10. Yes. An air pipe 40 extending vertically in the main body 10 is provided with a valve 43 and an air hole 44. The valve 43 is provided between the opening 42 and the air hole 44. That is, when the valve 43 is opened, the opening 42 and the air hole 44 communicate with each other, and when the valve 43 is closed, the opening 42 and the air hole 44 are blocked. Thereby, when the valve 43 is opened, the air in the internal space is ventilated, and when the buff portion 43 is closed, the water pipe 40 can be reliably prevented from being flooded.

  The hatch 50 includes a door frame portion 50a and a door portion 50b that can be opened and closed with respect to the door frame portion 50a. The door frame portion 50a is fixed in a watertight manner to an opening H1 formed in the main body 10. The door part 50b is pivotally supported with respect to the edge part of the door frame part 50a. When the door 50b is closed, the hatch 50 closes the opening H1 in a watertight manner, and when the door 50b is opened, an occupant can get in and out of the opening H1. A viewing window W is provided in the approximate center of the hatch 50.

  The opening H1 is formed so as to open obliquely upward on the side surface above the center of the main body 10 in the vertical direction, and the draft of the main body 10 (draft when a specified weight of personnel or luggage is mounted). ) Is formed on the upper side. Thereby, when the hatch 50 is opened, the possibility of flooding from the opening H1 to the internal space is reduced as much as possible.

  1 to 5, the hatch 50 is provided at a hexagonal position, which is one of the polygons constituting the outer shape of the main body 10, and is a hexagon. The door portion 50b is pivotally supported with respect to the door frame portion 50a with the side S at the highest position among the six hexagonal sides as a pivot. Thus, by providing the hatch 50 at one position of the polygon that constitutes the main body 10, it is possible to improve the ease of mounting and design of the hatch 50.

  The window 60 is fixed in a watertight manner with respect to the opening H <b> 2 formed in the main body 10. The opening H2 is formed so as to open obliquely upward on the side surface above the center of the main body 10 in the vertical direction. The draft of the main body 10 (draft when a specified weight of personnel or luggage is mounted). ) Above the side surface. As a result, the possibility that water pressure is applied to the window 60 is reduced as much as possible, and visibility from the window 60 is prevented from being lowered by spraying water or the like.

  The hatch 50 and the window 60 are provided so as to reduce overlap between the field of view of the hatch 50 from the viewing window W and the field of view from the window 60. In the example shown in FIGS. It is provided at a position symmetrical with respect to the central axis. This ensures maximum visibility of the occupants from floods and obstacles while ensuring external visibility from the interior space.

  In addition, it is desirable to mount an anchor on the floating floating shelter 100 described above. By installing an anchor, even if the floating shelter 100 is swept away by a tsunami, it is possible to suppress excessive drifting offshore by hitting the anchor at the time the tsunami stops It is possible to wait for rescue at a position where the rescue team can easily find it. In addition, if you hit an anchor at a place corresponding to the land and wait for the tsunami to pull, you can evacuate by yourself without waiting for the rescue team when the tsunami pulls.

  Next, the outer shell structure of the main body 10 of the floating floating shelter 100 will be described. The floating floating shelter 100 according to the present embodiment achieves high impact resistance and fire resistance while realizing an unsinkable structure by devising the outer shell structure.

  FIG. 6 is a cross-sectional view of the outer shell structure of the floating floating shelter 100 according to the present embodiment. The outer shell of the floating floating shelter 100 shown in FIG. 1 includes a structural material 11, a first impact resistant fiber 12, a second impact resistant fiber 13, a first polyurea resin layer 14, and a second polyurea resin layer. 15, a fireproof paint 16, a third polyurea resin layer 17, and a paint layer 18.

  The structural material 11 is a core material that forms the general shape of the main body 10, and various materials can be used as long as the structural material 11 itself is a non-sinkable material having buoyancy. For example, a material containing air such as a foamed material such as a synthetic resin foamed material (such as polystyrene foam) or a hollow box (a wooden box or an iron box sealed with air inside) can be used. Thereby, the unsinkable structure by the structural material 11 itself is realizable. Further, by using a material containing air, the thermal conductivity from the outside to the internal space is reduced, and the passenger can be protected from a water fire or the like.

  In addition, when forming the structural material 11 combining the polygonal part mentioned above, the junction part between polygonal parts is sealed with caulking agents, such as urethane, and a clearance gap is plugged up. As a result, the integrity of the structural member 11 is improved, and the waterproofness is also improved.

  The first impact resistant fiber 12 is attached to substantially the entire outer surface of the structural material 11. The first impact resistant fiber 12 imparts impact resistance to the outer surface of the structural material 11. Examples of the first impact resistant fiber 12 include para-aramid fiber, ultrahigh molecular weight polyethylene fiber, polyarylate fiber, PBQ (polyparaphenylene benzobisoxazole) fiber, and carbon fiber. The first impact resistant fiber 12 has a strength of 5 t or more, more preferably a strength of 30 to 50 t.

  The second impact resistant fiber 13 is attached to the corner of the outer surface of the structural material 11. The second impact resistant fiber 13 imparts further impact resistance to the corners of the structural material 11. Examples of the second impact-resistant fiber 13 include para-aramid fiber, ultrahigh molecular weight polyethylene fiber, polyarylate fiber, PBQ (polyparaphenylene benzobisoxazole) fiber, and carbon fiber. By providing the second impact resistant fiber 13, it is possible to impart higher impact resistance to the corner portion of the main body 10 that is highly likely to collide with a drifting object or a structure, as compared with other surface portions. The second impact resistant fiber 13 has a strength of 5 t or more, more preferably a strength of 30 to 50 t.

  More preferably, the second impact resistant fiber 13 is an impact resistant fiber having a higher impact resistance than the first impact resistant fiber 12. For example, the fiber material itself may be realized by using an impact-resistant fiber whose impact resistance is higher than that of the first impact-resistant fiber 12 as the second impact-resistant fiber 13, or a fiber material having the same strength. Even so, the first impact-resistant fiber 12 has a first mesh size, and the second impact-resistant fiber 13 has a second mesh size that has a denser mesh than the first mesh size. You may implement | achieve using. Thereby, it is possible to impart even higher impact resistance to the corner portion of the main body 10 as compared with other surface portions.

  The first polyurea resin layer 14 includes the entire outer surface of the structural member 11, the reinforcement frame 20, the base 30, the portion other than the viewing window W of the hatch 50, and the portion exposed outside the frame portion of the window 60, The outer surface of the structural material 11 is formed outside the first impact resistant fiber 12 and the second impact resistant fiber 13. The first polyurea resin layer 14 imparts chemical resistance, heat resistance, crack followability, wear resistance, and waterproof properties to the outer surface of the main body 10. In addition, since polyurea resin is lead-free, there is no risk of water or soil contamination.

  The first polyurea resin layer 14 is formed, for example, by spraying polyurea spray. When the first polyurea resin layer 14 is formed by spraying polyurea spray, it is preferable that the structural material 11 according to the present embodiment is a material that does not breathe. Because polyurea spray is heated and sprayed, if the base is breathing, it can cause pinholes and blistering, and the properties such as chemical resistance, heat resistance, crack followability, wear resistance, and waterproofness will decrease. It is.

  The second polyurea resin layer 15 is formed on the outer side of the first polyurea resin layer 14 so as to cover the entire outer surface of the first polyurea resin layer 14 excluding the hatch 50 and the window 60. In the second polyurea resin layer 15, a large number of particles having higher paint adhesion than the polyurea resin are embedded, and a surface exposed portion where a part of the particles is exposed from the surface of the second polyurea resin layer 15 is the first. The two polyurea resin layers 15 are uniformly formed. The particles are, for example, ceramic particles such as sand.

  Therefore, like the first polyurea resin layer 14, the second polyurea resin layer 15 provides the main body 10 with further chemical resistance, heat resistance, crack followability, wear resistance, and waterproofness. Needless to say, the paint adhesion is better than that of the first polyurea resin layer 14. The second polyurea resin layer 15 is formed, for example, by simultaneously spraying a polyurea spray and the above-described particles.

  The fire-resistant paint 16 is applied to the outer surface of the second polyurea resin layer 15 so as to cover the entire outer surface of the second polyurea resin layer 15 except for the hatch 50 and the window 60, and imparts fire resistance to the outermost surface of the main body 10. To do. Although the polyurea resin has low adhesion to paints and the like, as described above, the surface of the second polyurea resin layer 15 which is the base of the fireproof paint 16 has improved paint adhesion. It adheres well to the surface of the second polyurea resin layer 15.

  The third polyurea resin layer 17 includes the entire inner surface of the structural material 11, the reinforcement frame 20, the base 30, and the portion exposed to the inside of the frame portion of the window 60 other than the observation window W of the hatch 50, Is formed inside the structural member 11 so as to cover the inner surface of the main body 10 with chemical resistance, heat resistance, crack followability, wear resistance, and waterproofness. In addition, since polyurea resin is lead-free, there is no risk of lead contamination in the internal space.

  The paint layer 18 is applied to the innermost surface of the structural material 11 and imparts design to the inner surface of the third polyurea resin layer 17. Thereby, the habitability of the internal space of the floating shelter 100 is improved.

  When heated for 2 minutes with a burner at 1300 ° C. from the outer surface side of the water-floating shelter 100 having the outer shell structure described above, no noticeable change was observed. Similarly, when heated for 5 minutes with a burner at 1300 ° C. from the outer surface side of the water-floating shelter 100, the inner foamed polystyrene was dissolved, but the polyurea resin was slightly dissolved. Of course, almost no temperature increase was observed in the internal space. However, it does not reach as high as 1300 ° C in a sea fire, and it is considered to be about 500 ° C. at the maximum in an actual sea fire. Therefore, the floating floating shelter 100 according to the present embodiment can minimize the influence of the sea fire on the passengers in the internal space.

  In other words, according to the water-floating shelter 100 having the outer shell structure described above, various characteristics such as impact resistance, fire resistance, waterproofness, non-settability, chemical resistance, heat resistance, wear resistance, and the like are provided. Realized and a shelter with various characteristics necessary to protect internal occupants from various disasters that may occur during floods such as tsunami.

In the above-described embodiment, the floating floating shelter 100 has been described as having a substantially spherical shape. However, the shape is not limited to this, and various shapes such as a cube shape and a pyramid shape may be used. it can. Moreover, since the floating floating shelter 100 is not used when no flooding occurs, it can be diverted to other uses during that time. For example, the floating shelter 100 can be diverted to a soundproof room (karaoke room, musical instrument practice room, etc.) or a heat storage tank.

(2) Method for manufacturing a floating floating shelter:
Next, an example of a method for manufacturing the floating shelter 100 according to the present embodiment will be described with reference to FIG.

  First, hexagonal A, semi-hexagonal A ′, and pentagonal B polygon plate members that are parts of the structural material 11 are created. For example, hexagonal, semi-hexagonal, and pentagonal molds are filled with solid polystyrene and solidified to form hexagonal, semi-hexagonal, and pentagonal flat plate members that are parts of the structural material 11. The thickness of each polygonal flat plate member constituting the structural member 11 is preferably 30 mm or more.

  Next, as shown in FIG. 7 (a), the general shapes of the upper and lower hemispherical members 10a and 10b are constructed by temporarily joining the joined portions of the polygonal flat plate members with a surface tape or the like. . The gaps between the flat plate members of hexagon A, semi-hexagon A ', and pentagon B are sealed with a caulking agent (urethane or the like). FIG. 7 shows a state where the upper hemispherical member 10a and the lower hemispherical member 10b are joined for the sake of illustration.

  The structural member 11 of the main body 10 may be formed entirely using a formwork. In this case, the first polyurea resin layer 14 or the second polyurea resin layer 15 on the outer surface side, the first polyurea resin layer 15 on the outer surface side, 3 polyurea resin layers 17 can be formed simultaneously. For example, a mold release agent is applied to the inner or outer surface of the mold, and a polyurea spray is sprayed on it to a predetermined thickness, and then a foam is sprayed to a predetermined thickness to solidify it. Spray to a predetermined thickness. Thus, when creating the structural material 11 using a formwork, the outer surface shape of the main body 10 may be a shape obtained by combining a plurality of polygons, or may be a spherical shape. The first impact-resistant fiber 12 and the second impact-resistant fiber 13 provided between the structural material 11 and the first polyurea resin layer 14 are made of a polyurea spray or a foam while appropriately sticking to a predetermined portion. Spraying may be performed or omitted.

  Next, the metal reinforcement frames 20a and 20b are fixed to the ring-shaped end surfaces of the created upper and lower hemispherical members 10a and 10b, respectively. The reinforcing frames 20a and 20b face each other and are fixed to each other by screwing or the like, whereby the above-described reinforcing frame 20 is configured. For the lower hemispherical member 10b, a base 30 is fixed to the top of the circle.

  Next, as shown in FIG.7 (b), the 1st impact resistant fiber 12 is stuck on the outer surface of the upper hemispherical member 10a and the lower hemispherical member 10b. Moreover, as shown in FIG.7 (c), the 2nd impact-resistant fiber 13 is stuck along the corner | angular corresponding to the junction part of the flat plate member of hexagon A, semi-hexagon A ', and pentagon B. .

  Next, although not shown in FIG. 7, a third polyurea resin layer 17 is formed by spraying polyurea spray on the inner surfaces of the upper and lower hemispherical members 10a and 10b, and the third polyurea resin layer is further formed. A paint is applied on 17 to form a paint layer 18. At this time, the layer thickness of the third polyurea resin layer 17 is preferably 1 mm or more, and the thickness of the paint layer 18 is preferably 0.5 mm or more.

  When the coating on the inner surfaces of the upper hemisphere member 10a and the lower hemisphere member 10b is completed, the reinforcing frames 20a and 20b face each other and are fixed to each other by screwing or the like to form the reinforcing frame 20, thereby forming the upper hemisphere member 10a and the lower hemisphere member 10a. The hemispherical member 10b is integrated into a substantially spherical shape that is flattened up and down.

  Next, as shown in FIG. 7D, the first polyurea resin layer 14 is formed by spraying polyurea spray on the outer surface of the main body 10 except for the viewing window W and the window 60. Further, a second polyurea resin layer 15 is formed on the first polyurea resin layer 14 by spraying polyurea spray while dispersing particles. The thickness of the first polyurea resin layer 14 is preferably 3.0 mm or more, and the thickness of the second polyurea resin layer 15 is preferably 1 mm or more.

  Next, as shown in FIG. 7 (e), the fire-resistant paint 16 is applied to the portions of the outer surface of the second polyurea resin layer 15 excluding the metal portions such as the hatch 50, the window 60, and the base 30. The thickness of the fireproof coating 16 is preferably 0.5 mm or more.

  As a result, various properties such as impact resistance, fire resistance, waterproofness, non-sinkability, chemical resistance, heat resistance, wear resistance, etc. are realized. A shelter with various characteristics necessary for protecting passengers can be manufactured.

  The coating on the inner surface of the main body 10 may be performed after the upper hemispherical member 10a and the lower hemispherical member 10b are combined to form a hemispherical shell. You may perform before uniting the member 10a and the lower hemispherical member 10b.

(3) Summary:
In the floating floating shelter according to the embodiment described above, the outer shell structural material is a polyurea resin so that the core material is formed of a non-sinkable material containing air and substantially the entire outer surface of the core material. And a polyurea resin layer laminated. As described above, polyurea resin has extremely high heat resistance, and the core material inside it is made of an unsettled material that encloses air. Even so, the impact on the personnel on board can be made extremely small.

  Note that the present invention is not limited to the above-described embodiments, and the configurations disclosed in the above-described embodiments are interchanged with each other or the combinations thereof are changed, disclosed in the known technology, and in the above-described embodiments. A configuration in which each configuration is mutually replaced or a combination is changed is also included. Further, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Main body, 10a ... Upper hemispherical member, 10b ... Lower hemispherical member, 11 ... Structural material, 12 ... 1st impact resistant fiber, 13 ... 2nd impact resistant fiber, 14 ... 1st polyurea resin layer, DESCRIPTION OF SYMBOLS 15 ... 2nd polyurea resin layer, 16 ... Fire prevention paint, 17 ... 3rd polyurea resin layer, 18 ... Paint layer, 20 ... Reinforcement frame, 20a ... Reinforcement frame, 20b ... Reinforcement frame, 30 ... Base, 40 ... Air pipe 41 ... exposed part 42 ... opening 43 ... valve 44 ... air hole 50 ... hatch 50a ... door frame part 50b door part 60 ... window 100 ... floating floating shelter H1 ... opening , H2 ... opening, S ... side, W ... window

Claims (6)

A watertight floating shelter with a watertight structure,
Shell structure material, it possesses a core material formed by non沈材premiums containing air, and a polyurea resin layer formed by laminating a polyurea resin so as to cover substantially the entire outer surface of the core material, and
In the polyurea resin layer, a plurality of particles having higher paint adhesion than the polyurea resin are embedded,
A floating floating shelter characterized in that, on the outer surface of the polyurea resin layer, a particle exposed portion in which a part of the particles is exposed from the outer surface of the polyurea resin layer is uniformly formed .   The water-floating type shelter according to claim 1, wherein a fire-proof paint is applied to an outermost surface of the outer shell structural material. Core of said shell structure material, water-floating shelter according to claim 1 or claim 2, characterized in that it is reinforced its outer surface at the impact resistance fibers. The floating floating shelter according to any one of claims 1 to 3 , wherein the core of the outer shell structural material is formed by combining a plurality of polygonal flat plate members. The core material of the outer shell structural material is formed by combining a plurality of polygonal flat plate members, and the outer surface side thereof is reinforced with impact-resistant fibers,
Junction of the polygonal flat plate member claims, characterized in that it is reinforced by the second impact resistance fiber mesh size not smaller mesh than the outer surface mesh size of the impact resistance fibers The floating floating shelter according to claim 1 or 2 . The waterborne shelter according to any one of claims 1 to 5 , wherein the polyurea resin layer is formed by application of a polyurea spray.

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