Body shelter

Abstract

To provide a shelter for protecting a body only at the time of a big earthquake without becoming an obstacle at the time of daily life.SOLUTION: As a horizontal metal thin plate, a long side 11 of a rectangular main plate 1 is set as a longitudinal direction, and a short side 12 is set as a width direction. Both side ends in the longitudinal direction are provided with end part raising parts 2, 2 formed of the same material as the rectangular main plate 1 and held at the same angle in a downward inclined shape toward the outside with the horizontal line of the metallic thin plate as a reference, and a tension string-like object 4 is tied between both opposed end part raising parts 2, 2. The rectangular main plate 1 is formed in a flat shape in an ordinary time, and in a large earthquake, the tension string-like object 4 is properly shortened by tensile force by human power or motive power, and the rectangular main plate 1 is formed and fixed in a curved shape in the whole longitudinal direction, and the end part raising parts 2 and 2 are formed in a vertical shape, and can be formed as the body shelter.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a body shelter that can be used as an indoor picture frame or ornament in everyday life, and can be transformed into a shelter to protect the bodies of family members living together within a few seconds during a major earthquake (equivalent to a seismic intensity of 7). [Background technology]

[0002] On the evening of New Year's Day this year (2024), a major earthquake struck the Noto Peninsula, causing many homes to collapse. In particular, the Ishikawa Prefecture government released information on deaths up to January 20th of this year. Of the more than 240 people who died, 103 of whom had family consent, revealing the tragic reality that a staggering 90% were crushed to death by collapsing homes.

[0003] In both the 2016 Kumamoto earthquake and the Great Hanshin-Awaji earthquake, many houses collapsed, and many reports were published of people being crushed to death by the collapse of their houses. In the 2011 Great East Japan Earthquake, the damage was diverse, with tsunamis and fires occurring. The strength of the houses is the primary factor in the deaths caused by the collapse of houses.

[0004] Houses built in the 2000s that comply with the Building Standards Act have the advantage of being less likely to collapse, but the reality is that two-story wooden houses built before this time are at considerable risk of collapsing in an earthquake of magnitude 7. A considerable proportion of these seemingly fragile houses exist in earthquake-prone Japan.

[0005] The Anshin Home Shelter in Cited Document 1 (Utility Model Registration No. 3119420) has an arc-shaped arch that bulges upward, forming a space below which the body can fit into. This invention is based on the idea that if a person sleeps within this space, they can survive even if their house collapses during a major earthquake, and it is recognized as a shelter that provides a certain degree of safety. However, in everyday life, having this in a bedroom takes up space and can be a hindrance to sleep. It would be difficult to popularize it.

[0006] The personal shelter in cited document 2 (Patent No. 6482495) is also an invention in which a person sleeps in the interior space of a polygonal shelter made by combining many rods, forming a trapezoid when viewed from the front and a triangle when viewed from the side, during normal sleep and surviving even if the house collapses during a major earthquake. However, this invention is thought to be difficult to popularize, especially since there is great resistance to having it on a bed in the bedroom during normal sleep, and it may also interfere with sleep.

[0007] The earthquake-resistant shelter in cited document 3 (Patent No. 5469137) is an invention that protects houses from collapse, and if an individual wakes up immediately even if they are sleeping and enters the earthquake-resistant shelter during a major earthquake, they can survive even if their house collapses. This invention only requires space to place it in a bedroom, etc.

[0008] It is true that the shelters described in the cited documents 1, 2 and 3 not only take up space in everyday life, even in a bedroom or living room, but also often get in the way of everyday living activities, making them difficult to popularize. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Utility Model Registration No. 3119420 [Patent Document 2] Patent No. 6482495 [Patent Document 3] Patent No. 5469137 Summary of the Invention [Problem to be solved by the invention]

[0010] Therefore, what is needed is something that does not function as a shelter during everyday (normal) times, but does not get in the way, and only serves as a shelter in the event of a major earthquake; however, there have been no products that meet this need, and yet such a dual purpose, both for everyday use and during a major earthquake, has been desired and anticipated even in Japan, a country prone to earthquakes. Therefore, the problem (technical problem or objective, etc.) that this invention aims to solve is to realize a shelter that does not get in the way during everyday use, but serves as a shelter that protects the body only during a major earthquake. [Means for solving the problem]

[0011] As a result of intensive research by the inventor to solve the above-mentioned problems, the inventor has found the invention of claim 1 to be a body shelter characterized in that the rectangular main plate is a horizontal metal thin plate with the long side in the lengthwise direction and the short side in the widthwise direction, and at both ends of each lengthwise direction, the rectangular main plate is made of the same material as the rectangular main plate and is provided with end elevation parts that are maintained at the same angle and slope downwards towards the outside with the horizontal line of the metal thin plate as the reference, and a tension string-like object is tied between the opposing end elevation parts, and in normal times, the rectangular main plate is flat, and in the event of a major earthquake, the tension string-like object is shortened appropriately by manual pulling force, and the rectangular main plate is formed and fixed in a curved shape along the entire lengthwise direction, and the end elevation parts are formed vertically, thereby solving the above-mentioned problems.

[0012] The above problem was solved by the invention of claim 2, which is a human shelter characterized in that the long side of the rectangular main plate is a horizontal metal thin plate in the longitudinal direction and the short side is in the width direction, and at both longitudinal ends of each, end elevation parts are provided that are made of the same material as the rectangular main plate and are maintained at the same angle and inclined downward outward with the horizontal line of the metal thin plate as the reference, and tension string-like objects are tied between the opposing end elevation parts, and in normal times, the rectangular main plate is flat, and in the event of a major earthquake, the tension string-like objects are appropriately shortened by a tensile force generated by power, and the rectangular main plate is formed and fixed in a curved shape along the entire longitudinal direction, and the end elevation parts are formed vertically.

[0013] The above problem was solved by the invention of claim 3, which is a body shelter as described in claim 1 or 2, characterized in that the end raised portion has a predetermined angle within the range of approximately 110 degrees to approximately 150 degrees from the inside of the underside to the outside, with the horizontal line as the reference line.

[0014] The above problem is solved by the invention of claim 4, which is a body shelter according to claim 1, 2 or 3, characterized in that a reinforcing body is formed across both longitudinal end portions of the rectangular main plate and the end raised portion.The above problem is solved by the invention of claim 4, which is a body shelter according to claim 2, characterized in that a small hoist as the power source is provided in an appropriate position on the tension cord-like material. [Effects of the Invention]

[0015] In the invention of claims 1 or 2, the flat rectangular main plate is not used as a shelter during everyday (normal) times, but is instead propped up against a wall or placed horizontally, so as not to get in the way of the room. Only in the event of a major earthquake can the entire longitudinal direction of the rectangular main plate be curved (formed into a three-dimensional shape) and fixed manually or mechanically, immediately serving as a shelter for the body. This has the greatest advantage that even if a major earthquake occurs and the house collapses, the shelter of this invention can save lives. Even when assuming bending manually or mechanically, various metal plates are also conceivable, and stainless steel metal plates have the advantage of being thinner in terms of elasticity than thin galvanized steel plates, making them easier to handle.

[0016] The invention of claim 3 allows for a more effective curved shelter. The invention of claim 4 has the advantage that the strength can be guaranteed even with thin plate materials by adding a reinforcing body. The invention of claim 5 has the advantage that it can be more easily operated by using a small hoist as a power source.

[0017] In the present patent specification, "flat" means flat, and when placed on the ground as a whole, it forms a flat or horizontal surface. When placed on a vertical wall inside or outside a building, it forms an upright surface. In particular, when it is bent by several degrees, it is formed at an angle θ1 from both sides, as shown in Figure 15(B). Specifically, even when the angle θ1 is bent at approximately 1 to 3 degrees, it is included in the concept of "flat" [Figure 15(B)(ii) and (iii)]. Preferably, the angle θ1 is configured to be approximately 2 to 3 degrees.

[0018] In the present patent specification, the term "curved" refers to a state in which the entire longitudinal direction (X direction) of the rectangular main plate is curved and fixed. This refers to the entire longitudinal direction of the rectangular main plate 1 being curved and bulged in the Z direction (a direction perpendicular to the horizontal plane containing the X direction) during a major earthquake, and the term "curved" also encompasses a bow-like or semicircular arch shape. Specifically, as shown in Figure 15(C), the rectangular main plate is curved at an angle θ2 with respect to the horizontal line. The angle θ2 is approximately 20 degrees to approximately 60 degrees [Figures 15(C)(iv) and (v)].

[0019] Preferably, angle θ2 is set to approximately 30 degrees to approximately 50 degrees. Ideally, angle θ2 is approximately 35 degrees to approximately 45 degrees, and even more preferably, angle θ2 is approximately just over 40 degrees, close to 45 degrees. It should be noted that angle θ2 is determined based on the horizontal line of only the rectangular main panel. In particular, when the end raised portions are formed vertically, angle θ3 = 90 degrees + angle θ2. This point will be discussed later. In particular, a major earthquake does not necessarily have to be an intensity 7 earthquake, but can be as low as 6 or as high as 6, depending on the location. [Brief explanation of the drawings]

[0020] [Figure 1]This is a first embodiment of the present invention using a manual type hook portion made of a thin metal plate, where (A) is an overall perspective view of the device in a vertically placed state during normal use, (B) is an overall perspective view of the device fixed in a curved shape for use in a major earthquake, (C) is an overall horizontal view of the device fixed in a semicircular arch shape in a horizontal position for use in a major earthquake, (D) is an enlarged perspective view of area (α) in (A), and (E) is an oblique view of another embodiment of (D). [Figure 2] (A) is an overall front view of the device in Fig. 1(A) placed vertically and tilted slightly, (B) is an overall elevation view of the device fixed in a curved state during a major earthquake, and (C) are overall elevation views of the device at various instantaneous stages during the transition from a curved state during a major earthquake to a fixed semicircular arch state. Note that in this specification, only the "overall simplified front view" or "simple front view" is a drawing from a direction of approximately 80 to 85 degrees, not from a 90-degree (normal) direction, relative to the target surface, and the same applies to the "simple front view" hereinafter. [Figure 3] This is a second embodiment of the present invention, a manual type magnet set made of thin metal plates, in which (A) is an oblique view of the main parts in a state where the magnet is placed vertically in normal use, with a magnet on the bottom and an iron member on the top, (B) is an oblique view of the state where the magnet set has been completely joined, (C) is a state diagram of the magnet set just before it is joined, and (D) is a cross-sectional view of another embodiment in which the magnet set is upside down. [Figure 4] FIG. 3 is a third embodiment of the manual suction cup set for thin metal plates of the present invention, in which (A) is a perspective view of the main parts in a state where the set is placed upright in normal use, with a suction cup rubber piece on top and a flat rubber piece on the bottom, (B) is a cross-sectional view of the suction cup set just before it is joined, (C) is a cross-sectional view of the state in (B), (D) is a cross-sectional view of the suction cup set after it has been joined, and (E) is a cross-sectional view of another embodiment of the suction cup set. [Figure 5] (A) is an overall perspective view of the horizontal seating state, reinforced with a reinforcing angle and curved and fixed into a semicircular arch shape in the event of a major earthquake; (B) is a partial perspective view of the reinforcing angle and its installed state; (C) is an overall horizontal seating view of the horizontal seating state, reinforced with a reinforcing plate material and curved and fixed into a semicircular arch shape in the event of a major earthquake; (D) is a partial perspective view of the reinforcing plate material and its installed state. [Figure 6](A) is a partial oblique view of the decorative safety frame material to be attached to the long sides of the rectangular main plate of the metal thin plate and the outer periphery of the end raised portion, and its installation state, and (B) is a partial front view of the corner piece to be attached to the corner of the end raised portion of the metal thin plate and the end raised portion with the corner piece attached. [Figure 7] These are state diagrams showing the various stages of use of the present invention. (A) is a state diagram showing the normal state when the product of the present invention is leaned against the wall of a bedroom, imagining the normal sleeping state and the position when standing up during a major earthquake. (B) is a first state diagram showing the moment when the product of the present invention is stood up during a major earthquake and the hand is put on the pull handle. (C) and (D) are second and third state diagrams showing the moment when the hand is put on the pull handle and pushed down. (E) is a fourth state diagram showing the final shape when the tension string-like material is shortened and fixed into a semicircular arch shape. (F) is a final state diagram showing the semicircular arch shape when the product is used as a body protection shelter for several family members sitting sideways. [Figure 8] (A) is a diagram of the instantaneous state just before a house component falls and collides with the product of the present invention when the product is fixed in a semicircular arch shape during a house collapse, and (B) is a diagram of the instantaneous state when the house component collides with the product of the present invention during the collapse of the house. [Figure 9] (A) is a diagram showing the state diagram in which a bending moment acts on a metal component, causing bending stress and a curvature radius, and the required formula (1). (B) is a diagram showing the section modulus of a rectangular cross-section metal component and a thin plate of a metal component, and the required formula (2). [Figure 10] 1A and 1B are examples of use of the first embodiment of the manual type metal thin plate of the present invention, in which (A) is a side view when it is placed against a wall, (B) is an enlarged, partially cut-away perspective view of the area below (A) where a plastic bottle of drinking water or the like is used as a pillow, (C) is an enlarged cross-sectional view of the main part of (B), (D) is a schematic front view of an S-type rectangular main plate, (E) is a schematic front view of an M-type rectangular main plate, and (F) is a schematic front view of an L-type rectangular main plate. [Figure 11]These figures show the manual and electric types of the present invention, which use a rectangular main panel made of thin metal plate, in their everyday use. (A) is a diagram of the manual type placed vertically with a curtain hung on the upper half to be used as a wall picture. (B) is a perspective view of an example of a curtain hung on the top end of (A). (C) is also a diagram of the electric type placed horizontally in its everyday use with a curtain hung on more than the upper half to be used as a wall picture. (D) is an enlarged perspective view of part (α) of (A). [Figure 12] This is an electric type of the present invention that uses a rectangular main plate made of thin metal plate and is placed horizontally. (A) is an overall perspective view of the device placed horizontally during normal use, (B) is a diagram of the final state in which it is curved (semicircular arch shape) and fixed in place during a major earthquake, (C) is a diagram of the final state in which it is placed horizontally in the semicircular arch shape and used as a shelter for the body, and (D) is an enlarged perspective view of the small hoist. [Figure 13] This is yet another embodiment of the present invention, in which the rectangular main panel and end raised sections are made of FRP material and are of a manual type. (A) is an overall perspective view of the device placed upright in normal use, (B) is a diagram of the final state in which it is curved (semicircular arch shape) and fixed in place during a major earthquake, and (C) is a diagram of the final state in which it is placed horizontally in the semicircular arch shape to provide a shelter for the body. [Figure 14] This invention is an electrically operated type with a rectangular main panel and raised end sections made of FRP material. (A) is an overall perspective view of the device placed horizontally during normal use, (B) is a diagram of the final state when it is curved (semicircular arch shape) and fixed in place during a major earthquake, and (C) is a diagram of the final state when it is placed horizontally in the semicircular arch shape to provide a shelter for the body. [Figure 15] These are diagrams showing the longitudinal state of a rectangular metal main plate, where (A) is a perspective view, (B) is an example of a diagram showing the concept of a flat shape, (i), (ii), and (iii) are all cross-sectional views of diagram examples that fall under the category of a flat shape, and (C) is an example of a diagram showing the concept of a curved shape, and (iv) and (v) are all cross-sectional views of diagram examples that fall under the category of a curved shape. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. [First embodiment of manual type made of thin metal plate] A first embodiment of a manual type made of a thin metal plate will be described with reference to Figures 1 to 3, 5 and 6. First, the basic main member is a rectangular main plate 1 made of a thin metal plate, which is vertically long in each of Figures 1(A), 2(A) and 7(A), with a long side 11 (long side) in the longitudinal direction (X direction) and a short side 12 (short side) in the width direction (Y direction).

[0022] The basic shape of the rectangular main panel 1 is composed of long sides 11, 11 and short sides 12, 12 around the periphery, and in particular, the longitudinal length (long side 11: X direction) is approximately twice the width (short side 12: Y direction) of 1. Specifically, the short side 12 of the width (Y direction) is approximately 90 cm, and the long side 11 of the longitudinal width (X direction) is approximately 180 cm. In its basic form, the rectangular main panel 1 is flattened in everyday use [see Figure 20(B)]. In some cases, it may be slightly curved, and its longitudinal length may be shortened by approximately 1 or 2 cm compared to when it is flattened; however, in the present application, the values ​​are assumed to be the same as when it is flattened.

[0023] Numeral 2 denotes end-raising portions, which are made of the same material as the rectangular main panel 1 and are integrally formed on both longitudinal ends of the rectangular main panel 1, inclined from the inside to the outside at a predetermined angle θ3 ranging from approximately 110 degrees to approximately 150 degrees relative to the horizontal line. This angle θ3 remains approximately constant even during normal operation, even during a major earthquake, when the rectangular main panel 1 is shortened in the longitudinal direction by manual or mechanical pulling force, curved, and fixed, and the end-raising portions 2 are formed vertically (including angles of approximately 85 degrees or less). This angle θ3 remains approximately constant, completing the present invention. The change in this angle is also related to the quality and thickness of the metal material. Of course, the angle θ3 remains constant when a reinforcing member 3 (described later) is provided.

[0024] The angle θ3 = 90 degrees + angle θ2, and the angle θ3 is preferably set to approximately 120 degrees to approximately 140 degrees (θ2 is approximately 30 degrees to 50 degrees). More preferably, it is set to approximately 125 degrees to approximately 135 degrees (35 degrees to 45 degrees), and best set to approximately 130 degrees (approximately 40 degrees, approximately 45 degrees). The bending at the angle θ3 is performed using a large-scale press. In the present invention, the rectangular main plate 1 is flattened during normal use, and the tensioning cord-like member 4, described below, is configured to be in an untensioned state. Even if there is a tension of approximately 1 kg or less, this is considered to be untensioned in this specification. Furthermore, there are three specific types of the rectangular main plate 1 and the end-end raised portions 2, 2.

[0025] The three types are S-type, M-type, and L-type. As shown in Figures 10(C), (D), and (E), θ3 is set to 135 degrees in this example. The S-type has a width (X direction) of 90 cm, a longitudinal length of the rectangular main panel 1 of 170 cm, and a raised height (Y direction) of the raised portions 2 at both ends of 25 cm. The overall length in the longitudinal direction is approximately 205 cm. The M-type has a width (X direction) of 95 cm, a longitudinal length of the rectangular main panel 1 of 175 cm, and a raised height (Y direction) of the raised portions 2 at both ends of 25 cm. The overall length in the longitudinal direction is approximately 220 cm. The L-type has a width (X direction) of 100 cm, a longitudinal length of the rectangular main panel 1 of 180 cm, and a raised height (Y direction) of the raised portions 2 at both ends of 25 cm. In this case, the total length in the longitudinal direction is set to about 225 cm.

[0026] The thin metal plates of the rectangular main plate 1 and both end raised portions 2, 2 are formed from galvanized steel plate, stainless steel plate made of iron with chromium mixed, etc., and it is particularly preferable to select a material with excellent elasticity as appropriate. Reinforcing members 3 are formed on both longitudinal end portions of the rectangular main plate 1 and across both end raised portions 2, 2. There are multiple embodiments of the reinforcing members 3.

[0027] [Reinforcement measures for the rectangular main plate 1 and the raised end portion 2 made of thin metal plate] The first is formed as a reinforcing rib 31, as shown in Figures 1 and 2. The reinforcing ribs 31 are usually located at two bending points, but may be located at three or four points. Because the reinforcing ribs 31 can be formed using press work alone, large-scale equipment is required, but no additional components are required, and mass production is possible, potentially resulting in relatively inexpensive overall manufacturing. The second is a separate member, as shown in Figures 5(A) and (B), in which a reinforcing angle 32 at an angle θ3 when viewed from the side is fixed with a fastener such as a screw. Furthermore, as shown in Figures 5(C) and (D), the third is also a separate member, sometimes configured as a reinforcing plate member 33 whose cross section has an angle θ3 and is the same width as the short side 12 of the rectangular main panel 1 or the lower edge 21 of the end-raising portion 2, and which is also fixed with a fastener such as a screw.

[0028] A tensioning cord 4 is tied between the opposing end-raising portions 2, 2 at a midpoint (approximately the center) in the width direction near the ends of the end-raising portions 2, 2. The tensioning cord 4 is made of a metal wire or a cloth rope, etc., and is designed to withstand a tensile load of approximately 70 to 100 kg. In normal use, it is left loose to a certain extent (see Figures 1(A) and 2(A)).

[0029] In the event of a major earthquake, the tension cord-like members 4 are shortened appropriately by manual pulling force (approximately 35 kg to 70 kg), while the longitudinal direction of the rectangular main panel 1 is curved and fixed, and the family (couple and children) can hide inside to create a body shelter. The aforementioned manual pulling force (approximately 35 kg to 70 kg) is included in the manual pulling force even if it is increased by approximately 10 to 20 percent. Furthermore, as a concept of the present invention in the event of a major earthquake, specifically, the tension cord-like members 4 are configured as a single member with the entire length being the tension cord-like member 4, with the structure being appropriately shortened by manual pulling force.

[0030] For the average person, a major earthquake is a disaster that may or may not occur once in a lifetime. It is usually impossible to remain calm and operate the device in such a situation. Taking this into consideration, a structure for appropriately shortening the tension cord-like object 4 has been devised. In the first type of shortening structure, as shown in Figures 1(A) and 2(A), the tension cord-like object 4 is a single continuous object. In this case, a hook portion 5 is fixed at an appropriate position near the upper end of the tension cord-like object 4. There is a distance Q between this appropriate position of the hook portion 5 near the upper end and the locking portion 4a provided at the end of the tension cord-like object 4. The locking portion 4a is formed by rolling up a portion of the tension cord-like object 4 into a loop [see Figure 1(A)].

[0031] Specifically, the distance Q is approximately 25 cm when the total longitudinal width of the rectangular main panel 1 is approximately 170 cm. The hook portion 5 may be provided with a known stopper if necessary, but this is omitted from the drawings. In both Figures 1 and 2, under normal circumstances, the hook portion 5 is engaged with the engaged portion 4a near the end of the tensioning cord-like member 4, contracted, and fixed, as shown in Figure 1(B) from the state shown in Figure 1(A). Even in times of extreme tension, such as when a major earthquake occurs, the hook portion 5 is attached to the end of the tensioning cord-like member 4 (in a position that is always visible, at the distance Q), providing safety by eliminating the need to search for the hook portion 5.

[0032] [Actual usage of this invention: manual operation example] The shortening mechanism for engaging the hook portion 5 is actually an operation for shortening the distance Q of about 25 cm, and as mentioned above, this is performed by manual pulling force (about 35 kg to about 70 kg). This operation will be explained with reference to Figure 7. First, in normal times, as shown in Figure 7(A), a person is sleeping on a bed or mattress (bedding is omitted) with the product of the present invention leaned upright. Next, in the unlikely event of a major earthquake, the person throws the comforter aside, stands up, and immediately places their hand on the pull handle 81, as shown in Figure 7(B).

[0033] Immediately afterward, the person applies their weight to the pull handle 81 and pushes it down, as shown in Figures 7(C) and (D). They then apply their weight and push it down again, at which point the hook portion 5 engages and locks into the upper locking portion 4a (see Figure 7(E)). These actions (Figures 7(B) to (E)) actually take about 2 to 3 seconds. After that, the entire longitudinal length of the rectangular main panel 1 with the end-mounted portions 2, 2 is curved and locked, as shown in Figure 7(F), allowing the operator and several family members to lie face down on the product of the present invention and protect themselves from the collapse of the house.

[0034] In other words, in the event of a major earthquake, the tension cord-like members 4 are shortened appropriately by manual pulling force, and the rectangular main panel 1 is curved and fixed in its longitudinal direction, so that the rectangular main panel 1 with the end-mounting portions 2, 2 curves, and the end-mounting portions 2, 2 provide ample space inside for several family members to hide in, creating a body shelter. This invention is intended to be unobtrusive in everyday life, in a nearly flat frame-like shape, but to function as a body shelter in an emergency, and a simple and reliable operating means for bending it in an emergency is required, and this invention certainly meets this requirement.

[0035] [First embodiment of manual type made of thin metal plate] As mentioned above, the first type of shortening configuration is a simple one, as shown in Figures 1(A) and 2(A), in which the tensioning cord-like member 4 is a single continuous member consisting only of a hook portion 5 provided at an appropriate position near the upper end, but this is also a technical content that can be safely and reliably locked. The hook portion 5 alone is also referred to as the shortening operation member S, which will be described later. As mentioned above, the locked portion 4a is formed by rolling a portion of the tensioning cord-like member 4 into a loop, but as shown in Figure 1(E), a hanging ring 4b may also be provided. Engaging the hook portion 5 with this has the advantage of being easy to understand and operate in an emergency.

[0036] [Second embodiment of manual type made of thin metal plate] Next, in a second embodiment of the manual type made of a thin metal plate according to the present invention, the shortening operation member S is a magnetic member 6 type, and as shown in FIG. 3, it is composed of a magnetic part 61 made of a magnetic material and an iron-based member 62 that magnetizes it. In this case, the tensioning cord-like object 4 is also a single continuous object, and the magnetic part 61 is fixed at a position some distance from the upper end of the tensioning cord-like object 4. The iron-based member 62 is also provided near this upper end. In this case, there is also a distance Q between the magnetic part 61 and the iron-based member 62. Locking washers 4c, 4c are often used to fix the magnetic part 61 or the iron-based member 62 midway along the tensioning cord-like object 4. Other well-known examples also require reliable fixation.

[0037] In this case, the magnetic part 61 is also positioned as shown in Figure 3(C) so that they can easily be magnetically coupled. In an emergency (such as a major earthquake), a reliable magnetic coupling between the upper iron-based member 62 and the lower magnetic part 61 is required. In the embodiment, the lower side is the magnetic part 61 and the upper side is the iron-based member 62, but although not shown, the reverse is also possible.

[0038] [Third embodiment of manual type made of thin metal plate] In addition, in the third embodiment of the manual type thin metal plate of the present invention, when the shortening operation member S is an attraction member 7, as shown in Figure 4, it is composed of a rubber-based attraction portion 71 with a concave underside and a flat rubber-based plate portion 72. In this case, the tensioning cord-like object 4 is also a single continuous object, and the attraction portion 71 is fixed at a position some distance from the upper end of the tensioning cord-like object 4. The plate portion 72 is provided near this upper end. In this case, there is also a distance Q between the attraction portion 71 and the plate portion 72.

[0039] In this case, too, the position of the suction portion 71 is set to the position shown in Figure 4(C) so that the two can easily be attached by suction. In an emergency (such as a major earthquake), a reliable suction attachment between the upper suction portion 71 and the lower plate portion 72 is required. In the embodiment, the lower side is the plate portion 72 and the upper side is the suction portion 71, but although not shown, the reverse is also possible.

[0040] [Example of use of the present invention] It is installed by leaning it against a wall in a room. This serves to stabilize the leaning position and also as a drinking water countermeasure in an emergency. Specifically, as shown in FIG. 10(A), a holder 88 for a PET bottle 45 containing drinking water is preferably fixed to an appropriate location on the back surface of the end elevation portion 2 and then tied to the neck of the PET bottle 45. Specifically, the holder 88 comprises a front piece 88a, a rear piece 88b, and a mountain-shaped portion 88c. One side of the mountain-shaped portion 88c is glued to an appropriate location on the back surface of the end elevation portion 2, and a tongue piece 88d is cut out to support the PET bottle 45. The PET bottle 45 is also equipped with a whistle 46, which can be used to facilitate early rescue in the event of a major earthquake in the event that the house collapses and the person lies horizontally within the rectangular main panel 1 and end elevation portions 2, 2 (semicircular arch invention).

[0041] [Metal sheet electric type] Next, an embodiment of the present invention for electrically bending a thin metal plate will be described. In particular, the tensioning string 4 attached to the rectangular main plate 1 of the thin metal plate is electrically bent. Specifically, as shown in Figures 12(A) and 12(B), a small hoist 9 is provided near the tip of the tensioning string 4, and a locking portion 97 of the small hoist 9 is locked at a midpoint between the end elevation portions 2, 2. The outer casing 91 of the small hoist 9 incorporates a rotating drum 92, around which a wire 94 is wound. A hook piece 93 exposed on the outside of the outer casing 91 can be wound up via a motor 95 and a power supply 96 (12V or 24V). This power supply 9c may use a 100V household AC power source.

[0042] The actual hoisting amount is about 20 cm to about 30 cm (distance Q), and a hoisting force of about 100 kg is required. The initial torque is quite large, and in particular, an initial force is required to curve the entire longitudinal direction of the rectangular main plate 1 made of a thin metal plate according to the present invention. A start button (not shown) is provided at the front of the small hoisting machine 9, and the moment the start button is pressed, it is driven to shorten the tension string-like object 4, and when a predetermined length has been shortened (hoisted up), a brake is automatically applied, and the rectangular main plate 1 is fixed while being curved in the longitudinal direction (X direction), as shown in Figure 12(B).

[0043] [Actual usage of this invention: Electric operation example] In the case of an electrically operated type, since no human power is required for operation and the small hoisting machine 9 is provided, it is placed horizontally in everyday life rather than vertically, as shown in FIG. 12(A). During an actual major earthquake, the start button of the small hoisting machine 9 is pressed to instantly drive it, shortening the tension string-like object 4 and shortening (winding up) it by a predetermined length (distance Q). The brake is applied and the machine automatically stops, curving the rectangular main plate 1 in the longitudinal direction (X direction) and fixing it in place. The person is then protected by lying face down inside the curved rectangular main plate 1. In this way, it actually takes several seconds (approximately 3 to 6 seconds) from pressing the start switch until the person lies face down inside the rectangular main plate 1.

[0044] [Material mechanics, structural mechanics and mechanical considerations of the present invention] [1st] This is an idea to configure the rectangular main panel 1 so that it is flattened and curved in the longitudinal direction (three-dimensional) in the event of a major earthquake, and as one example, in the case of an S-type with a total height of approximately 205 cm in the X direction and a width of 90 cm in the Y direction, simply by pushing down the X direction by approximately 25 cm (distance Q), the maximum curved height P in the Z direction can be increased to a maximum of approximately 60 cm, providing a mechanically efficient operation that can serve as a three-dimensional shelter. In other words, by shortening the X direction by just over 25 cm (distance Q), a curved three-dimensional object can be obtained with a maximum curved height P in the Z direction approaching approximately 60 cm.

[0045] For the M type, if the total height in the X direction is approximately 210 cm and the width in the Y direction is approximately 100 cm, then by simply pushing down the X direction by approximately 30 cm (distance Q), it can become a three-dimensional shelter with a maximum curved height P in the Z direction of approximately 70 cm.For the L type, if the height in the X direction is approximately 220 cm and the width in the Y direction is 110 cm, then by simply pushing down the X direction by just under 35 cm (distance Q), it can become a three-dimensional shelter with a maximum curved height P in the Z direction of approximately 75 cm.

[0046] [First conclusion] This is based on the condition that the length in the Y direction is a little over 90 cm, and the length in the X direction is about 170 to 180 cm. If the distance Q in the X direction to be pressed down is the maximum height P that bulges out in the Z direction, then: Distance Q<distance P There is a formula that says:

[0047] This formula is a relationship between the longitudinal distance Q of only the rectangular main panel 1, which includes the height of the end raised portion 2 of 25 cm to 35 cm, and the Z-direction distance P of only the rectangular main panel 1. In other words, this invention takes into consideration the advantage that the distance P of expansion in the Z direction is greater than the distance Q in the direction of depression (X direction). As specific examples, the S and M types are depressed in the X direction by approximately 25 cm to 35 cm (distance Q), and a maximum height in the Z direction of approximately 40 cm + 30 cm (distance P) is obtained. Furthermore, the L type is depressed in the X direction by approximately 35 cm (distance Q), and a maximum height in the Z direction of approximately 45 cm + 30 cm (distance P) is obtained.

[0048] [Second] The bending moment M is as shown in Figure 9(A): EI: bending strength 1 / ρ: Curvature of the deflection curve ρ: radius of curvature E: Modulus of longitudinal elasticity M=(EI)× 1 / ρ (1)

[0049] The bending stiffness EI is determined by the material and cross-sectional shape of the metal material. In particular, the present invention proposes that the rectangular main plate 1 is flattened in normal times, but curved (three-dimensional) in the event of a major earthquake. In particular, for thin metal plates with excellent elasticity, the bending moment M is maximized when bent (from an instant to several minutes), and at this time, when ceiling members (including beams) fall during a house collapse, they can withstand the falling load, as shown in Figure 9(B).

[0050] Specifically, elastic forces act from each part of the curved thin metal rectangular main plate 1, and at the same time, when observed moment by moment, it is found that even if it becomes concave at first due to its elasticity, it bounces back irregularly and becomes strong enough to withstand the falling force when the house collapses, and the body can be hidden and protected inside the curved rectangular main plate 1 which expands in the Z direction and becomes three-dimensional. This is merely an assumption, and experiments are awaited, and it is possible that it could withstand a falling load of several tons when the house collapses, although this depends on the quality of the metal material.

[0051] [Third] The bending stiffness EI is affected by the cross-sectional shape of the metal material, specifically in terms of material mechanics and structural mechanics. When viewed as a rectangular cross section of a metal material, it is shown in the upper diagram of Figure 12(B), but even when it is made into a thin plate as in the present invention [lower diagram of Figure 12(B)], it is expressed by the same section modulus Z. In other words, Z = b × (t squared) × 1 / 6 (2) According to 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 will be four times as large. This means that even if the patented invention were made from a metal plate with a thickness of about 1.2 mm, it would weigh about 20 kg, making it difficult to handle.

[0052] [Safety measures for the rectangular main plate 1 made of thin metal plate and the raised portions 2, 2 at both ends] The rectangular main panel 1 is a thin metal plate, but since there is a risk of injury if handled with bare hands, decorative frame material 15a with a U-shaped cross section is used to protect the long sides 11, 11 of the thin plate and the periphery of the end raised portion 21 with adhesive or the like, as shown in Figure 6(A). Furthermore, corner pieces 15b as shown in Figure 6(B) are attached to the corners 22 of the end raised portion 21, and have elasticity to act as a base when placed vertically (see Figure 1(A)) or horizontally (see Figure 16(A)). It is preferable that the corner pieces 15b are treated to prevent slipping.

[0053] [3 types of rectangular main plate made of thin metal plate] Figure 10(C) shows an S-type elevation view of the rectangular main panel 1 and the raised portions 2, 2 at both ends, with a height of approximately 205 cm in the X direction and a width of approximately 90 cm in the Y direction; Figure 10(D) shows an M-type elevation view of the rectangular main panel 1 and the raised portions 2, 2 at both ends with a height of approximately 220 cm in the X direction and a width of approximately 95 cm in the Y direction; and Figure 10(E) shows an L-type elevation view of the rectangular main panel 1 and the raised portions 2, 2 at both ends with a height of approximately 225 cm in the X direction and a width of approximately 100 cm in the Y direction.

[0054] [Example of implementation] Consider a rectangular metal plate 1 (without end-end raised portions 2) with a thickness of 0.8 mm, a long side 11 of 90 cm, and a short side 12 of 45 cm. To shorten the tensioning cords 4 and create a curved shape, a considerable force is required. It is important to note that even for the same material, even a slight increase in thickness affects strength because the section modulus is affected by the square of the plate thickness t. For example, 0.8 × 0.8 = t squared, and t (the desired plate thickness) is approximately 1.13 mm, which corresponds to the commercially available plate thickness of 1.2 mm. In other words, doubling the bending moment force M of a 0.8 mm thick metal material requires a plate thickness of 1.2 mm, a 50% increase, due to the effects on the bending stiffness EI and the section modulus Z.

[0055] [FRP material] Furthermore, the explanations up to now have been of thin metal plates (steel, stainless steel, etc.), but this material has been changed to an FRP (fiber reinforced plastics) member, as shown in Figures 13 and 14. Even with this FRP member, the human power required to change the state of Figure 13(A) into the curved shape shown in Figure 13(B) is expected to be the same as that required for thin metal plates (steel, stainless steel, etc.) (approximately 35 kg to 70 kg).

[0056] As for size, in the manual type of FRP member, as shown in Fig. 13(A), θ3 is set to about 135 degrees (θ2 is about 45 degrees) in advance so that the total length in the X direction is about 220 cm, and the width in the X direction is about 100 cm, and tension cord-like members 4 are provided in the same way as for the above-mentioned metal thin plate (steel, stainless steel member, etc.). Furthermore, the shortening operation member S, which includes a hook portion 5, a magnetic member 6, and an attraction member 7, is provided via a pull handle 81 in the same way as the members shown in Figs. 3 and 4.

[0057] Furthermore, in the case of an electric type FRP member, as shown in Fig. 14(A), a tensioning cord-like object 4 is provided in the same manner as the above-mentioned metal thin plate (steel, stainless steel member, etc.) so that the width in the Y direction is about 100 cm and the height in the X direction is about 220 cm. In particular, like the small hoisting machine 9 shown in Fig. 12, it is configured so that it can be hoisted with about 100 kg, and the rectangular main plate 1 of the FRP member is configured so that it is curved and fixed with a hoisting force of about 100 kg.

[0058] Furthermore, although it has been explained that the rectangular main panel 1 of the FRP member is formed so that its width in the Y direction is about 100 cm and its height in the X direction is about 220 cm, it may be formed to a size similar to the examples of sizes of the rectangular main panel 1 of the metal thin plate described above, such as the S type shown in Fig. 10(D), the M type shown in Fig. 10(E), and the L type shown in Fig. 10(F). In particular, in Fig. 14(A) and Fig. 14(B), the rectangular main panel is formed so as to be bent by about several degrees in the longitudinal direction (X direction), but this is included in the definition of a flattened shape.

[0059] [Hanging "Noren 85" in everyday life] The one shown in Figure 11(B) is a "noren 85" for everyday use, with a total width equal to the total width of the rectangular main panel 1 in the Y direction, and one or more split sections 85a. As shown in Figure 11(A), the noren 85 is intended to be hung on the upper half of a vertically placed curtain in everyday use as a wall painting or decorative picture. It is particularly important that the pull handle 81 is located directly behind the position of the split section 85a. This allows the pull handle 81 to be grasped reliably while checking the split section 85a in the event of a major earthquake, which could occur at any time.

[0060] The one shown in Figure 11(C) is an electric type of the present invention, which is placed horizontally in everyday use and has a curtain 85 hung over more than half of the top side to serve as a wall picture. In this case, what is necessary is that the position of the split part 85a be aligned directly in front of the start switch of the small hoisting machine 9 so that the start switch can be pressed immediately.

[0061] The slit 85a of the noren 85 shown in 11(C) is provided as needed. The design on the noren 85 is not limited to the family crest, a favorite painting, or various character designs, and can be anything that can be used for decoration. This is because, during normal times, the main frame of the rectangular main panel 1 is covered with the decorative noren 85, providing a safe and secure way to spend your daily life. However, in the event of a major earthquake, this frame can also play a major role by providing a shelter for the body.

[0062] In normal operation, the entire length of the rectangular main plate 1 is formed flat, and the raised portions 2, 2 at both ends are inclined, so that the tensioning cord-like member 4 acts like a bowstring and is positioned above the position of the rectangular main plate 1, and the middle position of this string, the tensioning cord-like member 3, is pulled by a fastener 87, as shown in 11(D). The fastener 87 has a stopper 87a for the tensioning cord-like member 3 and a magnet portion 87b when the rectangular main plate 1 is made of steel, or is fixed to approximately the center of the rectangular main plate 1 with an appropriate adhesive or pin in the case of stainless steel.

[0063] In this specification, it has been clearly explained that the end raised portions 2 are the same material as the rectangular main panel 1, but they may be made of a separate metal material or a non-metal material such as wood, etc. This is determined as appropriate based on issues such as manufacturing costs and strength. [Explanation of symbols]

[0064] 1...rectangular main plate, 11...long side, 12...short side, 2...end raised portion, 3...reinforcement body, 4...tensioning string-like object, S...shortening operation member, 9...small hoisting machine.

Claims

1. The metal thin plate has a horizontal surface, and the long side of the rectangular main plate is the longitudinal direction and the short side is the width direction. At both ends of each longitudinal direction, end elevation portions made of the same material as the rectangular main plate are provided, and the end elevation portions are maintained at the same angle and inclined downward toward the outside with respect to the horizontal line of the metal thin plate, and a tension string-like object is tied between the opposing end elevation portions. A body shelter characterized in that the rectangular main plate is flat under normal circumstances, and in the event of a major earthquake, the tensioning cord-like member is appropriately shortened by manual pulling force, the rectangular main plate is curved and fixed in the entire longitudinal direction, and the end raised portions are formed vertically.

2. The metal thin plate has a horizontal surface, and the long side of the rectangular main plate is the longitudinal direction and the short side is the width direction. At both ends of each longitudinal direction, end elevation portions made of the same material as the rectangular main plate are provided, and the end elevation portions are maintained at the same angle and inclined downward toward the outside with respect to the horizontal line of the metal thin plate, and a tension string-like object is tied between the opposing end elevation portions. A body shelter characterized in that the rectangular main plate is flat under normal circumstances, and in the event of a major earthquake, the tensioning cord-like member is appropriately shortened by the tensile force generated by power, the rectangular main plate is curved and fixed in the entire longitudinal direction, and the end raised portions are formed vertically.

3. A body shelter as described in claim 1 or 2, characterized in that the end raised portion has a predetermined angle within a range of approximately 110 degrees to approximately 150 degrees from the inside of the underside to the outside, with the horizontal line as a reference.

4. 4. A body shelter according to claim 1, 2 or 3, characterized in that a reinforcing body is formed across both longitudinal end portions of the rectangular main panel and the end raised portion.

5. 3. A body shelter according to claim 2, wherein a small hoist as said power source is provided at an appropriate position on said tension cord-like material.

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