Body shelter

Abstract

The present invention can be used as a picture frame material indoors in normal times and can be made into a shelter that protects the body within seconds during a major earthquake (equivalent to seismic intensity 7). 【Configuration】 The long side 11 of the rectangular main board 1 made of a thin metal plate is in the longitudinal direction and the short side 12 is in the width direction, and a tension string-like object 4 is tied between each of the opposing short sides 12, 12. In normal times, the rectangular main board 1 forms a flat curved shape, and during a major earthquake, the entire longitudinal direction of the rectangular main board 1 is formed into a curved shape and fixed while the tension string-like object 4 is appropriately shortened by the tensile force of the power, so that it can be made into a shelter for the body.

Description

Technical Field

[0001] The present invention relates to a body shelter that can be used as an indoor picture frame material in daily life and can be used as a shelter to protect the body within seconds during a major earthquake (equivalent to seismic intensity 7).

Background Art

[0002] In the evening of New Year's Day this year (Reiwa 6), a major earthquake occurred in the Noto Peninsula, and many houses collapsed. In particular, the administrative agency of Ishikawa Prefecture announced the death situation until January 20 this year. Among the more than 240 deceased, in the situation of 103 deceased whose family consent was obtained, a tragic reality emerged that 90% of them were crushed to death due to house collapse.

[0003] In the Kumamoto earthquake in 2016 and the Hanshin-Awaji earthquake, many houses collapsed, and many situations of being crushed to death due to house collapse have been announced. In the Great East Japan Earthquake in 2011, there were tsunamis and fires, showing diversification. The strength of the houses is most related to the deaths caused by house collapse.

[0004] Houses built in the 2000s that comply with the Building Standards Law have the advantage of being difficult to collapse. However, in the case of wooden two-story houses built before this, there is a high risk of collapsing at a considerable rate at seismic intensity 7. Such seemingly weak houses exist in a considerable proportion in earthquake-prone Japan.

[0005] In the Safe Home Shelter of Patent Document 1 (Utility Model Registration No. 3119420), an arc-shaped arch bulging upward is formed, and a space for the body to enter is formed below this. It is an invention that if one is sleeping in this space, one can save one's life even if the house collapses during a major earthquake, and it is recognized that it is a shelter that can provide a certain degree of peace of mind. However, in daily life, installing this in the bedroom takes up space and may also interfere with sleep. It is difficult to popularize.

[0006] The personal shelter of Cited Document 2 (Japanese Patent No. 6482495) is also an invention in which a large number of rod pieces are combined to form a polygonal shape, which forms a trapezoid when viewed from the front and a triangle when viewed from the side. Inside the internal space, it is possible to sleep even in normal times and save one's life even if there is a house collapse during a major earthquake. However, this invention is particularly difficult to popularize because, in daily life, there is significant resistance to installing it on the bed in the bedroom, and it may also interfere with sleep.

[0007] The earthquake-resistant shelter of Cited Document 3 (Japanese Patent No. 5469137) is an invention for protecting against house collapse. It is an invention that allows an individual to get up immediately even during sleep during a major earthquake and enter the earthquake-resistant shelter to save one's life even if there is a house collapse. This invention only requires space to be placed in a bedroom or the like.

[0008] It is a fact that each of the shelters in Cited Document 1, Cited Document 2, and Cited Document 3 not only takes up space even if it is in a bedroom or living room during normal times, but also often interferes with daily life activities, making it difficult to popularize.

Prior Art Documents

Patent Documents

[0009]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0010] Therefore, although there is a demand for a product that does not get in the way during normal times but serves as a shelter only during a major earthquake, there has been no such product that can meet this demand. In earthquake-prone Japan, there is a demand and a desire for a product that can serve both purposes, i.e., being in a non-intrusive state during normal times and protecting the body as a shelter only during a major earthquake. Therefore, the problem (technical problem or objective, etc.) that the present invention aims to solve is to function as a shelter that protects the body only during a major earthquake without getting in the way during normal times and to achieve this.

Means for Solving the Problem

[0011] As a result of intensive research to solve the above problems, the inventor has made the invention of claim 1. The long side of the rectangular main board made of a thin metal plate is the longitudinal direction and the short side is the width direction. Short-side string-like objects are provided at each of the opposing short-side locations, and a tension string-like object is tied between the two short-side string-like objects. During normal times, the rectangular main board forms a flat curved shape. Large During an earthquake, the tension string-like object Move is appropriately shortened by the tensile force of the force, and the entire longitudinal direction of the rectangular main board is formed into a curved shape and fixed. By using this as a body shelter, the above problems have been solved.

[0012] The invention of claim 2 is such that the long side of the rectangular main board made of a thin metal plate is the longitudinal direction and the short side is the width direction. Reinforcing bodies are provided across the entire width at each of the short-side locations, and a tension string-like object is tied between the two opposing reinforcing bodies. During normal times, the rectangular main board forms a flat curved shape. During a major earthquake, the tension string-like object is appropriately shortened by the tensile force of the power, and the longitudinal direction of the rectangular main board is formed into a curved shape and fixed. By using this as a body shelter, the above problems have been solved. The invention of claim 3 is a body shelter characterized in that a small winch as the power is provided at an appropriate position of the tension string-like object in the body shelter described in claim 1 or 2. By using this, the above problems have been solved.

[0013] In the invention of claim 4, taking the long side of the rectangular main board of the FRP member as the longitudinal direction and the short side as the width direction, short-side string-like members are provided at each of the opposing short-side locations, and a tension string-like member is tied between the two short-side string-like members. In normal times, the rectangular main board forms a flat curved shape, Large and in the event of an earthquake, the tension string-like member is appropriately shortened by manual tensile force while the entire longitudinal direction of the rectangular main board is formed into a curved shape and fixed, thereby solving the above problems by using it as a body shelter.

[0014] In the invention of claim 5, taking the long side of the rectangular main board of the FRP member as the longitudinal direction and the short side as the width direction, short-side string-like members are provided at each of the opposing short-side locations, and a tension string-like member is tied between the two short-side string-like members. In normal times, the rectangular main board forms a flat curved shape, Large and in the event of an earthquake, the tension string-like member is appropriately shortened by the tensile force of power while the entire longitudinal direction of the rectangular main board is formed into a curved shape and fixed, thereby solving the above problems by using it as a body shelter.

Advantages of the Invention

[0015] In the invention of claim 1, in normal times (ordinary times), it is not used as a shelter, but the flat curved rectangular main board is leaned against a wall or placed horizontally in a pictorial manner without getting in the way of the room. Only in the event of a major earthquake, the entire longitudinal direction of the rectangular main board is formed (three-dimensionally formed) into a curved shape and fixed, which immediately serves as a body shelter. As a result, even if a major earthquake occurs and the house collapses, the greatest advantage is that one's life can be saved by the shelter of the present invention. In particular, since it is assumed that it can be bent manually, a stainless steel-based metal plate has the advantage of being able to be made into a thinner material in terms of elastic force compared to a thin zinc iron plate or steel plate, and can be made into something with excellent handling properties.

[0016] In the invention of claim 2, by incorporating a reinforcing member, there is an advantage that even a thin plate material can compensate for its strength. In the invention of claim 3, by means of a shortening operation member, there is an advantage that it is easier to perform a more shortening operation. In the invention of claim 4, by forming the rectangular main board into a flat curved shape with an FRP member, there is the greatest advantage that there is no danger in handling, and even if a large earthquake occurs and a house collapses, lives can be saved in the shelter of the present invention. In particular, since it is assumed to be bent manually, it can be made excellent in handleability. In the invention of claim 5, by being able to form the rectangular main board of the FRP member of claim 4 into a curved shape with power, anyone can do it more simply without applying manual force for the shortening operation.

[0017] In this patent specification, "flat curved shape" means a flat curved surface. When placed on the ground surface as a whole, it forms a flat curved surface or a horizontal curved surface. Also, when placed on the vertical wall surfaces inside and outside a building, it is formed as an upright cross-sectional arch shape. Specifically, as shown in Fig. 20(B), it is formed as a flat curved surface. It is formed at an angle θ2 from both sides respectively. Specifically, the angle θ2 is flat and curved at around about 8 degrees to about 20 degrees [Figs. 20(B)(i), (ii) and (iii)]. Preferably, the angle θ2 is configured to be about 10 degrees to about 15 degrees.

[0018] In this patent specification, "curved shape" means a state in which the entire longitudinal direction of the rectangular main board 1 is curved and fixed. It means that the entire longitudinal direction of the rectangular main board 1 bulges and curves in the Z direction during a large earthquake, and being bent in an arch shape or becoming a semi-circular arch shape is also included in the "curved shape". Specifically, as shown in Fig. 20(C), it is formed at an angle θ3 from both sides. The angle θ3 is curved at around about 45 degrees to about 65 degrees [Figs. 20(C)(v) and (vi)]. Preferably, the angle θ3 is configured to be about 50 degrees to about 60 degrees. Also, large earthquakes include those with a seismic intensity of less than 6 and a strong seismic intensity of 6 depending on the location.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Mode for Carrying Out the Invention

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. [First Embodiment of Manual Type with Thin Metal Plate] Regarding the first embodiment of the manual type with a thin metal plate, reference will be made to FIGS. 1 to 3 and FIGS. 6 and 7. First, the basic main member is a rectangular main board 1 made of a thin metal plate. As shown in FIGS. 1(A), 2(A), and 7(A), it is vertically long in each figure, with the long side 11 (the long side) in the longitudinal direction (X direction) and the short side 12 (the short side) in the width direction (Y direction).

[0021] As the basic shape of the rectangular main board 1, it is composed of long sides 11, 11 and short sides 12, 12 around it. In particular, with respect to the width (short side 12: Y direction) being 1, the longitudinal width (long side 11: X direction) is formed to be about 2. That is, the short side 12 in the width direction (Y direction) is about 90 cm, and the long side 11 in the longitudinal width direction (X direction) is configured to be about 180 cm. That is, it is a 3×6 iron plate, forming 3 shaku (about 90 cm) × 6 shaku (about 180 cm). In daily use in the basic shape, the rectangular main board 1 has a flat curved shape [see Fig. 20(B)]. Since its longitudinal direction is about 1 or 2 cm compared to the case of having a flat curved shape, in the patent application of this flat curved shape, the same numerical values as in the flat shape are used.

[0022] In the present invention, in daily use, since the rectangular main board 1 has a flat curved shape, in particular, the greatest feature is that the tensile force applied manually can be bent with a small initial force for bending the curved shape. That is, in the bending direction, it is slightly bent in advance and is effective. Also, in this way, when the rectangular main board 1 has a flat curved shape, the tension cord-like object 3 is configured to be in a state without tension. Even if there is a tension of less than about 1 kg, it is included in the concept of no tension in this specification. Furthermore, as will be described later, specifically, there are 3 types of the rectangular main board 1.

[0023] The thin metal plate of the rectangular main board 1 is formed of a zinc-plated steel plate made of steel, a stainless steel plate mixed with chromium in iron, etc. In particular, it is preferable that a member with excellent elasticity is appropriately selected. A short-side string-like object 3 is tied between the corners 13, 13 at 12 locations on the short sides of the rectangular main board 1. Specifically, both ends of the short-side string-like object 3 are tied between the hole parts 13a, 13a formed at the corners, and are provided with a certain degree of looseness during normal times [see FIGS. 1(A) and 2(A)]. Further, a tension string-like object 4 is tied between the two short-side string-like objects 3, 3 of the rectangular main board 1. Both the tension string-like object 4 and the short-side string-like object 3 are composed of a metal wire, a cloth rope, etc., and both are provided so as to be able to withstand a tensile load of about 780 to about 100 kg.

[0024] During a major earthquake, the tension string-like object 4 is appropriately shortened by a human pulling force (about 35 kg to about 70 kg), and the longitudinal direction of the long side 11 of the rectangular main board 1 is formed and fixed in a curved shape, and a body shelter can be formed by hiding the body inside. The aforementioned human pulling force (about 35 kg to about 70 kg) includes an increase of about 10% to 20%. Further, although it is the content as the concept of the present invention during a major earthquake, specifically, regarding the configuration in which the tension string-like object 4 is appropriately shortened by a human pulling force, there are cases of a single continuous tension string-like object 41 for the entire length and cases of being composed of two members, a majority tension string-like object 42 and a preliminary tension object 43. This will be described in detail below.

[0025] When it comes to a major earthquake, it is a once-in-a-lifetime disaster for the general public. Usually, people cannot operate calmly in such a situation. Considering such circumstances, a configuration for appropriately shortening the tension string-like object 4 has been devised. The first type of shortening configuration is that, as shown in FIGS. 1(A) and 2(A), the tension string-like object 4 is a single continuous object, which is referred to as the full-length tension string-like object 41. In this case, a hook portion 5 is fixed at an appropriate position near the upper end of the full-length tension string-like object 41. There is a distance Q between the appropriate position of the hook portion 5 near the upper end and the approximate center position of the short-side string-like object 3.

[0026] Specifically, when the overall width in the longitudinal direction of the rectangular main board 1 is about 180 cm, the distance Q is about 40 cm or so. Although a known anti-disengagement device is provided on the hook portion 5 as required, it is omitted in the drawings. In both FIG. 1 and FIG. 2, during normal times, as shown in FIG. 1(B) from the state of FIG. 1(A), the hook portion 5 is locked at a substantially central position of the upper short-side string-like object 3 and is in a fixed state in this state. Even during an extremely tense situation such as the occurrence of a major earthquake, since the position of the hook portion 5 is at a position in the middle of the full-length tension string-like object 41 (a position that can always be visually observed, the distance Q), there is a safety factor that there is no need to search for the hook portion 5 at all.

[0027] [Actual usage method of the product of the present invention: Manual operation example] As a configuration for locking the hook portion 5 as a shortened configuration, actually, it is an operation of shortening the distance Q of about 40 cm or so. As described above, it is performed through a manual pulling force (about 35 kg to about 70 kg or so). This operation will be described with reference to FIG. 8. First, during normal times, it is in the state of FIG. 8(A), and a person is sleeping in the bed (the quilt is omitted), and the product of the present invention is in a state of being vertically leaned against. Next, although it is a contingency, during a major earthquake, the person throws off the quilt and, as shown in FIG. 8(B), stands up and immediately hangs his or her hand on the pull handle 81.

[0028] Then, immediately afterwards, the person concerned presses down while hanging his or her weight on the pull handle 81 to make it as shown in FIGS. 8(C) and (D). Further hanging the weight and pressing down, at this time, the hook portion 5 is locked and fixed at a substantially central position of the upper short-side string-like object 3 (see FIG. 8(E)). Such an operation [FIGS. 8(B) to (E)] is actually performed in about 1 to 2 seconds. After that, since the entire longitudinal direction of the long side 11 of the rectangular main board 1 is formed in a curved shape and is also in a fixed state in this way, as shown in FIG. 8(F), the product of the present invention can be made to sit sideways so that the operator can protect his or her body from the collapse of the house in a prone state.

[0029] That is, during a major earthquake, the tension cord 4 is appropriately shortened by manual tensile force, and the long side 11 of the rectangular main board 1 is formed and fixed in a curved shape, so that the body can be hidden inside the curved rectangular main board 1 to form a body shelter. Even in normal times, it is in a flat and curved forehead shape and does not get in the way. In case of an emergency, it serves as a shelter for the body. In this emergency situation, a simple and reliable operating means is required to make it curved, and this invention can surely meet this requirement.

[0030] As described above, for this, the first type of shortening configuration is, as shown in FIGS. 1(A) and 2(A), the tension cord 4 is the full-length tension cord 41 of a single continuous object, and it is a simple content composed only of the hook portion 5 provided at an appropriate position near the upper end of the full-length tension cord 41, but this is also the technical content that can be locked safely and reliably. The hook portion 5 alone is also referred to as the shortening operation member S described later.

[0031] As shown in FIG. 3, it is another embodiment of the manual type of the first embodiment of the thin metal plate of the present invention, which is of the type of the hook portion 5. The tension cord 4 is composed of two members, namely the hook portion 5 as the shortening operation member S, the majority tension cord 42, and the preliminary tension member 43. The hook portion 5 is fixed at the upper end position of the majority tension cord 42 from the lower side, and the hook portion 5 is provided with a resin coil spring-shaped preliminary tension member 43 provided from both side positions of the upper short side cord 3 so as to generate a little tension, and the position of the hook portion 5 is configured to be easily hung at the position shown in FIG. 3(B). Specifically, rod-shaped pieces 51, 51 are provided on both sides of the middle of the hook portion 5, and the lower ends of the coil spring-shaped preliminary tension members 43 are fixed to both ends of these. By doing so, when an emergency occurs (during a major earthquake), the hook portion 5 can be surely and easily hung on the upper short side cord 3.

[0032] [Second Embodiment of the Manual Type of the Thin Metal Plate] Next, a second manual type embodiment of the thin metal plate of the present invention, in which the shortening operation member S is of the magnetic member 6 type. As shown in FIG. 4, it is composed of a magnetic force portion 61 made of a magnetic material and an iron-based member 62 magnetized thereto. The magnetic force portion 61 is fixed to the upper end position of the majority of the tension cord-like member 42 from below, and the iron-based member 62 is provided downward at the central position of the upper short-side cord-like member 3 so as to face the magnetic force portion 61. Further, a resin-made coil spring-like preliminary tension member 43 is provided so as to generate a little tension.

[0033] Also in this case, the position of the magnetic force portion 61 is configured to be the position shown in FIG. 4(C) so that the two are easily magnetically coupled. Specifically, rod-shaped pieces 61a, 61a are provided on both sides of the magnetic force portion 61, and the lower ends of the coil spring-like preliminary tension member 43 are fixed to both ends thereof. By doing so, in case of emergency (during a major earthquake), a reliable magnetic coupling between the upper iron-based member 62 and the lower magnetic force portion 61 is required. In the embodiment, the lower side is the magnetic force portion 61 and the upper side is the iron-based member 62, but although not shown, the reverse is also a possible configuration.

[0034] [Third Manual Type Embodiment of Thin Metal Plate] Further, in a third manual type embodiment of the thin metal plate of the present invention, when the shortening operation member S is an adsorption member 7, as shown in FIG. 5, it is composed of a rubber-based adsorption portion 71 with a concave lower surface and a flat rubber-based plate portion 72. The adsorption portion 71 is provided downward at a substantially central position of the upper short-side cord-like member 3. The plate portion 72 is fixed to the upper end position of the majority of the tension cord-like member 42 from below, and rod-shaped pieces 72a, 72a are provided from both sides of the plate portion 72, and the lower ends of the coil spring-like preliminary tension member 43 are fixed to both ends thereof.

[0035] The preliminary tension member 43 is provided with a slight amount of tension so that the adsorption portion 71 and the plate portion 72 can achieve reliable adsorption. In the embodiment, the lower side is the plate portion 72 and the upper side is the adsorption portion 71. However, when the adsorption force increases, as shown in FIG. 5(E), both the upper side and the lower side may be the adsorption portions 71, 71. Also, although not shown, the lower side may be the adsorption portion 71 and the upper side may be the plate portion 72.

[0036] [Another Example of the Second Embodiment of the Manual Type of Thin Metal Plate] FIG. 13(A) shows another example of the second embodiment of the manual type of thin metal plate of the present invention. Instead of using the preliminary tension member 43 as a tension spring which is a coil spring, a 500 cc or 1 liter bottle 45 of drinking water serving as a weight is suspended via a pulley 44 at the tip of a tension wire such as a piano wire. By this, instead of a coil spring as the preliminary tension member 43, a tension wire such as a piano wire is used, and as long as there is drinking water in the bottle 45, it has a structure that serves as the preliminary tension member 43 even after a long period of time (about several years to about ten years). Further, a whistle 46 is provided at the position of the drinking water bottle 45, which is useful for early rescue in case of being saved inside the rectangular main board 1 which has collapsed and become three-dimensional due to a major earthquake.

[0037] [Electric Type of Thin Metal Plate] Next, an embodiment of curving in the electric (power) type of thin metal plate of the present invention will be described. In particular, the tension cord 4 provided on the rectangular main board 1 of the thin metal plate is performed electrically. Specifically, as shown in FIGS. 16(A) and (B), a small winch 9 is provided at the tip of the full-length tension cord 41 of the tension cord 4, and the locking portion 97 of the small winch 9 is locked at the intermediate position of the short-side cord 3. A rotating drum portion 92 is built in the outer housing portion 91 of the small winch 9, a wire 94 is wound around it, and the hook piece 93 exposed outside the outer housing portion 91 is configured to be wound up via a motor portion 95 and a power supply portion 96 (12V or 24V). This power supply portion 9c may use a household AC power supply of 100v.

[0038] As the actual winding-up amount, it is around about 40 cm to about 50 cm (distance Q), and as this winding-up force, around about 100 kg is required. The initial torque is a considerably large force, and in particular, an initial force for bending the entire longitudinal direction of the rectangular main board 1 of the thin metal plate according to the present invention is required. At the front position of the small winch 9, a start button (not shown) is provided. When the start button is pressed, it is driven instantaneously and a shortening operation is performed on the tension cord-like object 4. When a predetermined length is shortened (wound up), a brake is automatically applied, and as shown in FIG. 16(B), it is fixed while bending the longitudinal direction (X direction) of the rectangular main board 1 into a curved shape.

[0039] [Actual usage method of the product of the present invention: Example of electric operation] In the case of the electric type, since no manual input is required for the operation and the small winch 9 is provided, it is not placed vertically. As shown in FIG. 16(A), it is placed horizontally during normal times. During an actual major earthquake, the start button of the small winch 9 is pressed to drive it instantaneously, and a shortening operation is performed on the tension cord-like object 4 to shorten (wind up) a predetermined length (distance Q), and a brake operation is applied to stop automatically, making it in a fixed state while bending the longitudinal direction (X direction) of the rectangular main board 1 into a curved shape. Then, protect the body in a prone position inside the curved rectangular main board 1. In this way, actually, the operation is performed within several seconds (about 3 to about 6 seconds) from pressing the start switch until getting into a prone position inside the rectangular main board 1.

[0040] [Considerations on material mechanics, structural mechanics, and mechanism of the product of the present invention] [First] In normal times, the rectangular main board 1 is in a flat curved shape, but in the event of a major earthquake, the entire longitudinal direction of the rectangular main board 1 is configured in a curved (three-dimensional) shape. In particular, as an example, in the S type, when the height in the X direction is about 180 cm and the width in the Y direction is 90 cm, by simply pushing down the X direction by about 32 cm (distance Q), a shelter in the form of a three-dimensional object with a maximum curved height P in the Z direction of about 46 cm can be obtained, and a mechanically efficient operation can be achieved. That is, with a shortening operation of about 30 cm or more in the X direction (distance Q), a curved three-dimensional object with a maximum curved height P in the Z direction approximated to about 50 cm can be obtained.

[0041] In the M type, when the height in the X direction is about 195 cm and the width in the Y direction is about 95 cm, by simply pushing down the X direction by about 37 cm (distance Q), a shelter in the form of a three-dimensional object with a maximum curved height P in the Z direction of about 50 cm can be formed. In the L type, when the height in the X direction is about 210 cm and the width in the Y direction is 110 cm, by simply pushing down the X direction by about 40 cm or less (distance Q), a shelter in the form of a three-dimensional object with a maximum curved height P in the Z direction of about 54 cm can be formed.

[0042] [First Conclusion] This is based on the condition of a thin metal plate with a length in the Y direction of about 90 cm or more and a length in the X direction of about 180 cm or more. When considering the maximum height distance P bulging in the Z direction with respect to the distance Q in the X direction to be pushed down, Distance Q < Distance P The formula appears.

[0043] That is, it is an invention considering the advantage that the distance P bulging in the Z direction is greater than the distance Q in the pushing-down direction (X direction). As specific examples, in the S type, when the X direction is about 180 cm and pushed down by about 32 cm (distance Q), a maximum height of about 46 cm (distance P) in the Z direction is obtained. Also, in the M type, when the X direction is about 195 cm and pushed down by about 37 cm (distance Q), a maximum height of about 50 cm (distance P) in the Z direction is obtained, and in the L type, when the X direction is about 210 cm and pushed down by about 40 cm (distance Q), a maximum height of about 54 cm (distance P) in the Z direction is obtained respectively.

[0044] [Second] "Occurrence of monocoque effect" In the present invention, short-side string-like members 3, 3 connecting both corner portions of 11 locations on the short sides are provided, and a tension string-like member 4 is connected between both of the short-side string-like members 3, 3. Therefore, as a specific configuration, since it is curved so as to tension the four corners of the rectangular main board 1, it becomes a fixed state as shown in Fig. 6(A). Then, the end face viewed in the direction of arrow α-α in Fig. 6(A) becomes curved, and the end face viewed in the direction of arrow β-β in Fig. 6(A) is also formed in a flat and curved shape. This is a structure unique to an elastic metal thin plate, and because of this shape, a strong monocoque-shaped semi-circular arch-shaped shelter can be obtained. For greater safety, a relatively thick material is preferred, but there are also issues such as weight, and suitable values can be obtained through experiments.

[0045] [Third] The bending moment M is, as shown in Fig. 12(A), EI: Bending rigidity 1 / ρ: Curvature of the deflection curve ρ: Radius of curvature E: Young's modulus M = (EI) × 1 / ρ ······ (1)

[0046] The bending rigidity EI is determined by the material of the metal material and its cross-sectional shape. In particular, in the present invention, the idea is that the rectangular main board 1 is in a flat and curved shape during normal times, but is configured in a curved (three-dimensional) shape during a major earthquake. In particular, for a thin plate metal material with excellent elasticity, when bent (from an instant to about several minutes), the bending moment M becomes maximum. At this time, as shown in Fig. 11(B), when the ceiling member (including beam members) falls during house collapse, it can withstand the falling load.

[0047] Specifically, while the elastic forces act from each part of the rectangular main board 1 made of a thin metal plate in a curved shape, when observing minute and instantaneous changes, due to its elasticity, even if it once becomes concave, although irregular, it can bounce back and be able to sufficiently withstand the falling force during the collapse of the house. It can hide and protect the body within the rectangular main board 1 that is curved and has a Z - direction expansion to form a three - dimensional shape. This is only an assumption, awaiting experiments, and although it also depends on the material of the metal, it is also possible to withstand the falling load of several tons during the collapse of the house.

[0048] [Fourth] The bending rigidity EI is affected by the cross - sectional shape of the metal material. Specifically, in terms of material mechanics and structural mechanics, it is affected by the cross - sectional shape of the metal material. When considering the rectangular cross - section of the metal material, it is the upper diagram in Fig. 12(B). However, even if it is a thin plate as in the present invention [the lower diagram in Fig. 12(B)], it can be expressed with the same section modulus Z. That is, Z = b×(t squared)×1 / 6 ······ (2) From this formula (2), the section modulus is proportional to the square of the plate thickness. Therefore, if the plate thickness is doubled, the section modulus Z becomes four times. Such a situation is that for a metal plate with a thickness of around 1.2 mm for the metal material, even if it constitutes the patented invention of this case, the weight will be around 20 kg, resulting in a difficult - to - handle situation.

[0049] [Reinforcement measures for the rectangular main board 1 of the thin metal plate] As shown in Fig. 7(A), as an example of reinforcing the longitudinal direction (X - direction) of the rectangular main board 1, near the short side 12 of the rectangular main board 1, a plurality of rib - shaped ribs 16 (4 locations in the drawing) are provided at predetermined intervals in the width direction. In particular, it effectively acts on the impact load during a major earthquake. Also, as shown in Fig. 9, near both short sides 12, 12 of the rectangular main board 1, it is reinforced as bending parts 21, 21 in the Y - direction. The bending part 21 increases the strength in the Y - direction (width direction). Also, as shown in Fig. 10(A), zigzag ribs 17 may be provided near both short sides 12, 12 of the rectangular main board 1. The zigzag ribs 17 can reinforce the longitudinal direction (X - direction) and the width direction (Y - direction) of the rectangular main board 1.

[0050] Furthermore, as shown in FIG. 10, one reinforcing member 22 (see FIGS. 10(A), (B), and (D)) or two reinforcing members 22 (see FIG. 10(E)) having the full width are provided at both short sides 12 of the rectangular main board 1. Together with the bent portions 21 and the reinforcing members 22, they are referred to as "reinforcing body 2". Furthermore, although the reinforcing body 2 is provided over the full width of the short side 12 of the rectangular main board 1, it may be about 90% (substantially the full width), and this is also included in the full width.

[0051] [Safety Measures for the Rectangular Main Board 1 Made of Thin Metal Sheet] The rectangular main board 1 is a thin metal sheet, but since the surrounding area may cause injury to the bare hands, as shown in FIG. 14(A), the decorative frame member 15a having a U-shaped cross-section is protected via an adhesive or the like on the long sides 11, 11 and the short sides 12, 12 of the thin sheet. Furthermore, at the corner portions of the rectangular main board 1, the corner pieces 15b as shown in FIG. 14(B) serve as pedestals when placed vertically [(see FIG. 1(A))] or horizontally [(see FIG. 16(A))] while having elasticity.

[0052] [Mounting Structure of the Short Side String-like Member 3] The structure shown in FIG. 14(C) is another embodiment of the mounting structure of the short side string-like member 3 to the corner portion 13 of the rectangular main board 1. A headed pin 13b is inserted into the hole portion 13a provided at the corner portion, and the end of the short side string-like member 3 is tied to the hole portion 13a provided at the tip of the headed pin 13b. By doing so, there is an advantage that the rectangular main board 1 can be bent more easily in the longitudinal direction (X direction). Also, as shown in FIG. 14(D), two notches 13c, 13c may be formed at the corner portion 13 and the end of the short side string-like member 3 may be tied there.

[0053] [Three Types of the Rectangular Main Board 1 Made of Thin Metal Sheet] Figure 15(C) is the S type of the elevation view of the rectangular main board 1, with a height of approximately 180 cm in the X direction and a width of approximately 90 cm in the Y direction. Figure 15(D) is the M type of the elevation view of the rectangular main board 1, with a height of approximately 195 cm in the X direction and a width of approximately 95 cm or approximately 100 cm in the Y direction. Figure 15(E) is the L type of the elevation view of the rectangular main board 1, with a height of approximately 210 cm in the X direction and a width of approximately 100 cm or approximately 110 cm in the Y direction.

[0054] [Embodiment Example] The rectangular main board 1 is made of a metal plate with a thickness of 0.8 mm, a long side 11 of 90 cm, and a short side 12 of 45 cm. To provide both short side cord-like members 3, 3 and a tension cord-like member 4 to make it curved, a considerable force is required as the force to shorten the tension cord-like member 4. Here, the important thing is that even for the same member, if the plate thickness is increased even slightly, in terms of strength, since the section modulus is affected, it becomes the square of the plate thickness t. For example, it is calculated as 0.8×0.8 = t squared, and t (the required plate thickness) becomes approximately 1.13 mm, specifically, the commercially available plate thickness of 1.2 mm. That is, in terms of calculation, to double the bending moment force M of the metal material with a thickness of 0.8 mm, it affects both the bending rigidity EI and the section modulus Z, and it can be obtained with a plate thickness of 1.2 mm, which is 1.5 times the thickness.

[0055] [Made of FRP members] Also, the previous descriptions were about thin metal plates (steel-based, stainless steel members, etc.). By changing this material, as shown in Figures 18 and 19, it is configured as an FRP member (Fiber Reinforced Plastics). Even for this FRP member, the input force required to make it curved from the state of Figure 18(A) to Figure 18(B) is assumed to be the same as that of thin metal plates (steel-based, stainless steel members, etc.) (about 35 kg to about 70 kg).

[0056] In terms of size, for the manual type of FRP member, as shown in Fig. 18(A), the width in the Y direction is about 100 cm and the height in the X direction is about 200 cm. Similar to the aforementioned thin metal plate (steel-based, stainless steel member, etc.), short-side string-like members 3, 3 and tension string-like member 4 are provided. Furthermore, the configuration of two members, namely the full-length tension string-like member 41 and the mostly tension string-like member 42 and the preliminary tension member 43, and the hook portion 5, magnetic member 6, adsorption member 7, etc. of the shortening operation member S via the handle handle 81 are provided in the same manner as the members shown in Figs. 3 to 5.

[0057] Also, for the electric (power) type of FRP member, as shown in Fig. 19(A), the width in the Y direction is about 100 cm and the height in the X direction is about 200 cm. Similar to the aforementioned thin metal plate (steel-based, stainless steel member, etc.), short-side string-like members 3, 3 and tension string-like member 4 are provided. In particular, similar to the small winch 9 shown in Fig. 16, it is configured to be able to wind up about 100 kg, and the rectangular main board 1 of the FRP member is configured to be fixed in a curved shape with a winding force of about 100 kg inside and outside.

[0058] Also, although it was explained that the rectangular main board 1 of the FRP member can be formed such that the width in the Y direction is about 100 cm and the height in the X direction is about 200 cm, it may also be formed in the same size as the S type shown in Fig. 15(C), the M type shown in Fig. 15(D), and the L type shown in Fig. 15(E) of the size example of the rectangular main board 1 of the aforementioned thin metal plate. In particular, in Figs. 18(A) and 19(A), it is bent about several degrees in the longitudinal direction (X direction) and formed in a substantially V shape, but it is included within the definition of a flat curved shape.

[0059] [When hanging the "noren 85" in daily use] What is shown in Fig. 17(B) is the "noren 85" used in daily life. Its full width is equivalent to the full width of the rectangular main board 1 in the Y direction, and one or more dividing parts 85a are provided. As shown in Fig. 17(A), the noren 85 is to be hung on the upper half placed vertically in daily life as a wall painting or a picture for appreciation. A particularly important point is that the handle 81 is required to be located directly behind the position of the dividing part 85a. This allows one to surely grasp the handle 81 while checking the dividing part 85a during a major earthquake that may occur at any time.

[0060] What is shown in Fig. 17(C) is the present invention of the electric (power) type. In daily life, it is placed horizontally and the noren 85 is hung as a wall painting at a position above the upper half. At this time, it is necessary that the position of the dividing part 85a is configured to align at a position immediately in front of the start switch of the small winch 9 so that the start switch can be pressed immediately.

[0061] There are two dividing parts 85a of the noren 85 shown in Fig. 17(C), and there is no dividing part 85a at the middle position. Also, the pattern drawn on the noren 85 is not limited in content to the family crest passed down in that house, a favorite painting, or various character drawings. It can be anything and includes all that can be used for appreciation. The reason is that in daily life, it provides something that can cover the main forehead part of the rectangular main board 1 with the noren 85 for appreciation and allows one to live a secure daily life. At the same time, during a major earthquake, on the contrary, it can play a major role in that this forehead can be used as a body shelter.

[0062] Since the entire longitudinal direction of the rectangular main board 1 is formed in a flatly curved shape during normal times, the tension cord 3 may be like a bowstring and be in a lifted position. The middle position of the tension cord 3, which is like a string, is configured to be pulled through a fastener 87 as shown in 17(D). The fastener 87 has a stop portion 87a of the tension cord 3, and when the rectangular main board 1 is made of a metal thin plate and is made of steel, a magnet portion 87b is provided, and in the case of a stainless steel system, it is fixed to a substantially central position of the rectangular main board 1 with an appropriate adhesive or pin or the like.

Explanation of Reference Numerals

[0063] 1... rectangular main board, 11... long side, 12... short side, 2... reinforcing body, 4... tension cord, 5... hook portion, 6... magnetic force member, 7... adsorption member, S... shortening operation member.

Claims

1. The long side of a rectangular main plate made of a thin metal plate is in the longitudinal direction and the short side is in the width direction, and a short side string-like object is provided at each of the opposing short side locations, and a tension string-like object is tied between the two short side string-like objects, A body shelter characterized in that the rectangular main plate is flattened and curved during normal operation, and during a major earthquake, the tension cord-like members are appropriately shortened by the tensile force of a power source, and the entire longitudinal direction of the rectangular main plate is formed and fixed in a curved shape.

2. The long sides of a rectangular main plate made of a thin metal plate are in the longitudinal direction and the short sides are in the width direction, a reinforcing body is provided on the entire width of each short side portion, and a tension cord-like object is tied between the opposing two reinforcing bodies, A body shelter characterized in that the rectangular main plate is flattened and curved during normal times, and during a major earthquake, the tension cord-like members are appropriately shortened by the tensile force of a power source, and the longitudinal direction of the rectangular main plate is curved and fixed.

3. 3. The body shelter according to claim 1 or 2, characterized in that a small hoist as the power source is provided at an appropriate position on the tension cord-like object.

4. The long sides of the rectangular main plate of the FRP member are in the longitudinal direction and the short sides are in the width direction, and short side string-like objects are provided at the opposing short side locations, and tension string-like objects are tied between the two short side string-like objects, This body shelter is characterized in that the rectangular main plate is flattened and curved during normal times, and during a major earthquake, the tensioning cord-like members are appropriately shortened by human pulling force, and the entire longitudinal direction of the rectangular main plate is formed into a curved shape and fixed.

5. The long sides of the rectangular main plate of the FRP member are in the longitudinal direction and the short sides are in the width direction, and short side string-like objects are provided at the opposing short side locations, and tension string-like objects are tied between the two short side string-like objects, A body shelter characterized in that the rectangular main plate is flattened and curved during normal operation, and during a major earthquake, the tension cord-like members are appropriately shortened by the tensile force of a power source, and the entire longitudinal direction of the rectangular main plate is formed and fixed in a curved shape.

Images