Shed-type emergency evacuation structure

Abstract

To solve the problem that conventionally, since a refuge is only for gathering the kindergarten children to one place of the room by giving one classroom there is no means for relieving kindergarten children when a disaster such as an earthquake occurs in a gathering room, and as a result, the kindergarten children cannot be protected from the disaster.SOLUTION: A hut form body structure for emergency evacuation consists of: four vertical columns erected at corner parts of a rectangular floor part; four upper side beam bodies installed between upper end parts of the four vertical columns; four lower side beam bodies installed between lower end parts of the four beam bodies; four intermediate beam bodies installed between the four beam bodies at an intermediate position between the upper side beam body and the lower side beam body; a plurality of installation beam bodies installed between the opposed upper side beam bodies; and a joint metal fitting interposed in each joint part of each vertical column, each upper and lower side beam body, each intermediate beam body, and each installation beam body; in addition, the joint metal fitting is interposed in face joint parts between each end face and each side face of the vertical column, the upper and lower side beam bodies, and the installed beam body to perform an integral joint function of each square bar.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This invention relates to a shed-type frame structure for emergency evacuation, which allows infants, kindergarten children, etc. to take refuge in a box-type shed in the event of a natural disaster such as an earthquake, and which can also be used as a play space by storing play equipment, etc. inside the box-type shed. [Background technology]

[0002] Conventionally, as an emergency evacuation measure in the event of a natural disaster such as an earthquake, particularly for young children such as nursery school or kindergarten children, a specific evacuation site has been set up on the grounds of a childcare facility such as a nursery school or kindergarten, or within the school building, and teachers in charge of guiding the young children to the evacuation site to protect them from natural disasters.

[0003] In these typical evacuation sites, the current situation is that simple defensive measures are taken to protect people solely from the collapse of fixtures and furniture, for example by fixing the fixtures and furniture to the ceiling, floor, or walls using various furniture fall prevention devices such as tension rods, fixing stays, and anchor materials (see, for example, Patent Documents 1 to 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2016-63994 [Patent Document 2] Patent Publication No. 2019-122716 [Patent Document 3] Patent Publication No. 2014-68834 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in actual fact, when natural disasters occur within child care facilities, many victims are affected by falling objects from above, such as ducts, fixing bolts, and ceiling panels. In particular, young children, who have a narrower field of vision than adults, often do not notice falling objects and are unable to instantly protect themselves from above.

[0006] Moreover, in general, many of the evacuation facilities for children in disaster-prone facilities are designed to protect children from disasters by setting aside classrooms for evacuation, and gathering young children in these rooms. However, few of these rooms have special architectural structures that are durable enough to avoid disasters, and most are inappropriate as evacuation sites.

[0007] In other words, if a disaster such as an earthquake occurs in a meeting room serving as an evacuation site, no consideration has been given to any means of protecting young children playing or those gathered for evacuation from falling or collapsing objects and providing emergency rescue, and there is currently an urgent need to take measures to design evacuation sites and the architectural structure of evacuation shelters that can protect young children from such disasters.

[0008] To provide a shed-type frame structure for emergency evacuation, which is capable of withstanding a considerable load disaster in a certain indoor space where small children gather to play, and is configured so that small children can normally play inside the shed-type frame, and which allows small children to evacuate into the shed-type frame while playing even if a sudden disaster causes indoor destruction, thereby safely and securely protecting them from objects falling from above. [Means for solving the problem]

[0009] In order to solve the above problems, the emergency evacuation shed-type frame structure of the present invention comprises four vertical columns erected at the corners of the square floor, four upper beams erected between the upper ends of the four vertical columns, four lower beams erected between the lower ends of the four vertical columns, four intermediate beams erected between the four vertical columns at the midpoint between the upper and lower beams, a plurality of erection beams erected between opposing upper beams, and metal fittings interposed at the respective joints of each of the square timbers that constitute each of the vertical columns, the upper and lower side beams, the intermediate beams, and the erection beams, and further, the metal fittings are configured to be interposed at the surface joints between each end face of the vertical columns, the upper and lower side beams, and the erection beams, and to perform the function of integrally joining each of the square timbers.

[0010] In addition, the emergency evacuation shed-type framework structure according to the present invention also has the following features. In other words, the surface connections between the vertical columns, upper beams, lower beams, erection beams, etc. are made by abutting the end face of one square timber against the side of the other square timber and joining them together using metal fittings between them. In addition, the connecting fittings are composed of a face plate portion which is joined to the end face of the square timber and a leg plate portion which protrudes at a right angle from the face plate portion, and are formed overall into an approximately T-shape or approximately C-shape, with the face plate portion abutting and fixed to the side of the square timber to be joined and the leg plate portion being embedded in the end face slit of the square timber to be joined, and the leg plate portion being fixed within the end face slit by a fixing bolt inserted from the side of the square timber to be joined with the leg plate portion embedded. In addition, the square floor section is constructed by laminating an underlay sheet made of a foam material such as foamed urethane, a bottom sheet made of soft resin, an intermediate sheet made of two layers of foam material with a wood wool board in between, and a topmost resin top sheet. In addition, various toys for children were placed inside the emergency shelter, which has a square box-like frame made from various square timbers. In addition, emergency shelters with a square box-shaped frame should be installed inside living spaces such as kindergarten buildings, school buildings, and business rooms in buildings. Effect of the Invention

[0011] The emergency evacuation shelter structure according to the present invention is as follows: (a) The structure is composed of four vertical columns, four upper beams installed between the upper ends of the vertical columns, four lower beams installed between the lower ends of the vertical columns, four intermediate beams installed at the midpoint of each of the upper and lower beams, a plurality of erection beams installed between the upper beams, and metal fittings interposed at the joints of each of the rectangular timbers that make up each vertical column and each beam, and the metal fittings are interposed between the abutting ends and sides of the rectangular timbers of the beams, etc., to perform the function of integrally joining each rectangular timber, (b) In addition, the joint metal fittings are composed of a face plate and a leg plate protruding at a right angle from the face plate, and are formed into an approximately T-shape or an approximately C-shape. The leg plate is embedded in the end slit of the square timber to be joined, and is fixed by a fixing bolt inserted from the side of the square timber. (c) The square floor is constructed by laminating a foam underlay sheet, a soft resin bottom sheet, two layers of foam intermediate sheets with a wood wool board in between, and a top resin top sheet. (d) In addition, various toys for children were placed inside the evacuation shelter, (e) In addition, by installing the rectangular box-shaped framed evacuation shelter inside a residential space such as a kindergarten or school building or a business room in a building, The following effects (1) to (11) are exhibited.

[0012] (1) It can be installed in a certain indoor space where young children gather to play, allowing young children to play safely under normal circumstances, and in the event of an emergency disaster, if the indoor area is destroyed, young children can be evacuated and safely and securely protected from overhead damage, etc., and it has the effect of allowing the play area to be used as both an emergency shelter and a playground, allowing for healthy childcare for young children and reliable disaster prevention. Furthermore, by installing play equipment for young children inside the emergency evacuation hut-type frame, it has the effect of allowing them to have a sufficient playful life even when they cannot play outdoors due to environmental circumstances, and furthermore, if disaster response equipment such as disaster prevention tools are installed, it has the effect of immediately responding to emergency situations in disasters and reliably protecting the safety of young children in the event of the occurrence of any disaster situation.

[0013] (2) In addition, the members that form the framework, such as the vertical columns, upper beams, lower beams, and erected beams, have one side of one beam abutted against the other end of the other beam at the surface joint, and the joints are joined together with metal fittings, so that the joints with each beam and vertical columns are strong. In particular, since the joints between each beam and the joints between the vertical columns and beams are joined together with metal fittings, it is possible to provide a sturdier architectural structure than the precut construction method, which is usually only supported at four points, and it has the effect of eliminating the uneven load phenomenon in which the load stress from above is concentrated only in certain joints, and distributing the load to the entire structure, resulting in a stronger structure. Specifically, the vertical columns can naturally firmly support weight loads from above in an upright position, and the upper square frame structure made up of the upper beams (the upper beams on all four sides configured in a square shape) together with the erected beams reliably has the strength to function as a frame structure, and in particular, the joints of each beam are joined using approximately T-shaped or approximately U-shaped joint fittings that are integrally joined by the end face slits on the end faces of the beams and the side faces of the beams, so it is able to maintain the strength to withstand the load weight of objects falling from above.

[0014] (3) Furthermore, in the shed-type frame structure of the present invention, a structure is made by combining beams without using components such as lintels in the framework, so that the metal joints function effectively to improve the strength of the structure.

[0015] (4) Also, by stretching the ceiling boards perpendicular to the beam direction of the erected beams in the ceiling section, the load deflection applied to the erected beams can be reduced as much as possible, contributing to improving the strength of the ceiling section, and the ceiling boards and the erected beams can receive small falling objects, while the upper beams can protect the space inside the frame from heavy falling objects. Also, since wall plates are stretched as side walls between the vertical columns and the upper, middle and lower beams, the wall plates function to reinforce the beams, improving the strength of the shed-type frame structure against distortion and deformation. Furthermore, when the ceiling panels are stretched over the erected beams of the ceiling, screws are screwed into the 20-30mm thick ceiling panels to fasten them together with the beams, which allows the spiral stress caused by the screws being screwed in and biting into the wood to be dispersed to the surrounding wood components, increasing the joint strength with the beams to which they are joined and creating a strong connection. The ceiling panels can also be made of 20mm plywood, but in any case, the strength of the wood material for the ceiling panels is increased as it is a solid board.

[0016] (5) Furthermore, since the structure is composed of three types of components, namely, vertical columns, beams, and connecting metal fittings, it has a simple and sturdy construction, but can be easily assembled and disassembled on site, which is particularly effective in facilitating construction and disassembly work in places where young children gather.

[0017] (6) Even if the two erecting beams installed between the upper beams apply a weight load from above to the entire frame structure, the structure will flex and be able to withstand buckling. In addition, due to the wood composition of the beams, the wood fibers will not completely separate due to the buckling load, preventing total breakage of the wood.

[0018] (7) Furthermore, due to the characteristics of wood, even if a part of the beam breaks under load, the wood composition does not completely separate, and the entire wood remains as a whole and can withstand the load strength. In particular, the beams are joined together in a square frame shape with metal fittings, and the sides and ends of the square timber are joined together to form a frame, which makes it able to withstand bending and contributes to improved strength.

[0019] (8) When using cedar for beams, the wood density is higher in the center, so the material used for the beams should be selected taking advantage of the material's dense and thin characteristics. Generally, the outer periphery of wood has the advantage in terms of tensile strength and flexibility and has a low Young's modulus, but when considering the joint strength between beams, the center of the wood has a higher wood fiber composition density, so when using cedar wood in particular, the center part is used for the beams. In this way, to maximize the strength of wood, vertical columns are used in the vertical direction, i.e., in the direction of the fibers, where the strength is greatest, to utilize the tensile and compressive strength. Also, since wood has low strength against bending, i.e., shear, an external force acting on wood, the beam assembly structure is designed to minimize the shear applied to each beam as much as possible and maintain a constant shear strength, and intermediate beams between the upper and lower beams serve the function of improving this strength.

[0020] (9) A shed constructed with the shed-form frame structure of the present invention is constructed within the room space of an existing building, which is a so-called “house-in-house” structure. Moreover, since the materials are brought in and constructed on-site, it is easy to disassemble and convenient to handle.

[0021] (10) If the beams are made of cypress wood, it has advantages over other materials in terms of both fragrance and strength, and the structure as a whole will have greater strength.

[0022] (11) In the rectangular space formed by the vertical columns, upper beams, lower beams, and intermediate beams, a wooden base of a fixed thickness is fitted between the sides of the vertical columns and each beam. In other words, by fitting the square base body so that each end face of the wall body abuts against the side faces of the vertical columns and each beam body, the strength of the square framework between the vertical columns and each beam body against distortion and twisting can be improved.

[0023] (12) If necessary, the number of beams can be increased. As shown in FIG. 5, it is also possible to add one more intermediate beam to each of the four sides, which will further increase the strength, especially the strength against twisting and distortion.

[0024] (13) The walls fitted between the beams may be fitted not only vertically but also at a slight incline, and may also be used as a play seat for children to climb up. In this case, protrusions for handholds or footholds are provided on the inner surface of the inclined wall.

[0025] (14) In addition, a test report of downward load on the structure of the present invention is attached to show that the structure of the present invention has great durability against downward load.

[0026] (15) In addition, the square floor section is constructed by laminating an underlay sheet made of a foam material such as urethane foam, a bottom sheet made of soft resin, an intermediate sheet made of two layers of foam material with a wood wool board in between, and a top resin top sheet, which has the effect of maintaining its strength even with repeated friction by a child.Furthermore, since the floor section is laid inside the floor frame made of the lower beams and is not fixed to the floor base, it can slide freely in the event of an earthquake or other shaking, and has the effect of allowing the shaking caused by the earthquake to escape, reducing the risk of it directly affecting the movement of a child through the floor section.

[0027] (16) In addition, by placing toys for children on each pillar inside the evacuation hut, it has the effect of allowing children to enjoy normal play unless a disaster occurs.

[0028] (17) In addition, since emergency shelters can be placed anywhere within the living space, they are effective in protecting not only young children but also ordinary adults from falling objects during a disaster.

[0029] (18) By installing lamps at designated positions on the erection beams, they can be used to illuminate the space, and they can also serve as an alarm in the event of a disaster. By changing the color of the lighting in the event of a disaster, the warning effect can be improved, and the alarm can be made more noticeable, especially to young children.

[0030] (19) When installing an emergency evacuation shed frame body inside a room space of an existing wooden or steel-framed residential building, the entrance / exit space of the shed frame body should not be positioned facing the interior window glass, which has the effect of preventing glass fragments from scattering inside the shed frame body in the event of an earthquake disaster. [Brief description of the drawings]

[0031] [Figure 1]FIG. 1 is an external perspective view showing a shed-type emergency evacuation structure according to the present invention; [Diagram 2] A side view showing a shed-type emergency evacuation structure according to the present invention. [Diagram 3] Schematic plan view showing a shed-type emergency evacuation structure according to the present invention. [Figure 4] An exploded explanatory diagram of the main parts, focusing on the joint fittings, of the emergency evacuation shed-type frame structure according to the present invention. [Diagram 5] FIG. 1 is an exploded perspective view showing a state in which the ceiling boards and wall bodies of the emergency evacuation shed-type frame structure according to the present invention have been removed from between the beams. [Figure 6] Schematic perspective view and cross-sectional view showing the configuration of a laying plate of a shed-type structure for emergency evacuation according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] The gist of this invention is a structure comprising four vertical columns erected at the corners of a rectangular floor section, four upper beams erected between the upper ends of the four vertical columns, four lower beams erected between the lower ends of the four vertical columns, four intermediate beams erected between the four vertical columns at the midpoint between the upper and lower beams, a plurality of erection beams erected between the opposing upper beams, and metal fittings interposed in the respective joints of each of the square timbers constituting each of the vertical columns, the upper and lower beams, the intermediate beams and the erection beams, and further, the metal fittings are interposed in the surface joints between each end face and each side face of the vertical columns, the upper and lower beams and the erection beams to perform the function of joining each square timber together, and the surface joints are formed by abutting the end face of one square timber against the side face of the other square timber. the connecting fittings are made up of a face plate portion which joins face-to-face with the end face of the square timber and a leg plate portion which protrudes at a right angle from the face plate portion, the face plate portion being fixed in contact with the side of the square timber to be joined and the leg plate portion being embedded in a slit in the end face of the square timber to be joined; the square floor portion is constructed by laminating an intermediate sheet made of two layers of foam material, top and bottom, and a resin top sheet on the top; various types of children's toys are placed inside the emergency shelter; and the emergency shelter with a square box-shaped frame is intended to be installed inside a living space such as a kindergarten building, a school building, or a business room in a building.

[0033] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a perspective view showing a roof-type body structure for emergency evacuation, Fig. 2 is a side view showing the roof-type body structure for emergency evacuation, Fig. 3 is a schematic plan view showing the roof-type body structure for emergency evacuation, Fig. 4 is an exploded explanatory view of the main parts, focusing on the metal joints, Fig. 5 is an exploded perspective view showing the ceiling board and wall body of the roof-type body structure for emergency evacuation with the beams removed, and Fig. 6 is a schematic perspective view and a cross-sectional view showing the configuration of the installation plate of the roof-type body structure for emergency evacuation.

[0034] As shown in Figures 1 to 3, the shed-type frame structure A of the present invention is composed of four vertical columns 20 erected at the corners of the square floor section 10, four upper beams 30 erected between the upper ends of the four vertical columns 20, four lower beams 40 erected between the lower ends of the four vertical columns 20, four intermediate beams 50 erected between the four vertical columns 20 at intermediate positions between the upper beams 30 and the lower beams 40, and a plurality of erection beams 60 erected between opposing upper beams 30.

[0035] 1 to 3, a ceiling board 61 is stretched over the upper surface of the erection beam 60 in a direction perpendicular to the erection direction of the beam 60. The ceiling board 61 is stretched over the flush upper surface of an upper frame having a square shape in plan view, with the upper ends of the four vertical columns 20 as its corners and the four upper beams 30 erected between these corners as its peripheral edges, as shown in Fig. 2, to completely close the inner frame window.

[0036] 2 and 3, the ceiling board 61 is made up of a number of long narrow plates 62 stretched in parallel in a direction intersecting the erection beam 60, and each long narrow plate 62 is fixed to the erection beam 60 with adhesive, bolts, metal fittings, etc. as necessary, or is simply placed on the erection beam 60. The thickness of the ceiling board 61 is 30 mm, and the combination of the rectangular upper beam 30 and intermediate beam 50 reduces the wobble of the vertical columns 20, resulting in a structure that can withstand sagging and twisting.

[0037] The materials used for these vertical columns 20 and various beams 30, 40, 50, 60 are cedar or cypress.

[0038] As shown in Fig. 4, metal fittings 70 are provided at the joints of each corner member between each vertical column 20 and the upper and lower side beams 30, 40, the intermediate beam 50, and the erection beam 60. This is a wooden house with a basic box-shaped frame structure, and the shed-type frame structure A of the present invention is installed in the room space of an already existing wooden or steel-framed building, so there is little pressure load from the sides or diagonal directions, and only a hanging load from above, making it a structure that can withstand such a hanging load.

[0039] The metal joints 70 are arranged at the surface joints between the end faces and side faces of the vertical columns 20, the upper and lower beams 30, 40, the intermediate beam 50, and the erection beam 60, to perform the function of integrally joining the beams.

[0040] That is, the connecting fitting 70 is a metal body formed into an approximately T-shape or approximately C-shape overall as shown in Figure 4, and is composed of a face plate portion 71 that is face-joined to the end face of the square timber, and a leg plate portion 72 that protrudes at a right angle from the face plate portion 71.

[0041] The face plate portion 71 is configured so that it can be abutted and fixed against the side surface of one of the square timbers to be joined, and the leg plate portion 72 is embedded in an end face slit 73 formed in the end face of the other corresponding square timber to be joined, and is configured so that the leg plate portion 72 can be fixed within the end face slit 73 by a fixing bolt 74 inserted from the side surface of the other square timber to be joined in which the leg plate portion 72 is embedded.

[0042] A bolt insertion hole 71a is formed through the face plate portion 71 at approximately the center of the plate surface. One side of the square material (vertical column 20) that fixes the face plate portion 71 serves as an abutment surface portion with which the outer side surface of the face plate portion 71 abuts, and a bolt insertion hole 71b is formed through the face plate portion 71 so as to be perpendicular to the abutment surface portion and communicate with the bolt insertion hole 71a of the face plate portion 71.

[0043] The leg plate portion 72 has two upper and lower holes 71a formed therethrough at predetermined positions (positions near the protruding tip) on the plate surface for inserting bolts.

[0044] In addition, the end surface slits 73 corresponding to the insertion of the leg plate portion 72 are formed by making vertical linear cuts along the vertical direction of the end surfaces of the various beam bodies 30, 40, 50, 60, which are square timber, and along the extension direction of the various beam bodies 30, 40, 50, 60.

[0045] In addition, the other square member (upper beam 30) in which the end face slit 73 is formed has a bolt insertion hole 73a formed therethrough from one side, which corresponds to and communicates with the hole 72a in the leg plate portion 72 when the leg plate portion 72 of the connecting fitting 70 is inserted into the end face slit 73.

[0046] Such connecting fitting 70 is fixed to the vertical column 20 by inserting a fixing bolt 71c from the other side surface while the outer surface of the panel portion 71 is in face-contact with one side surface of the vertical column 20 to connect the bolt insertion hole 71b of the vertical column 20 with the hole 71a of the panel portion 71.

[0047] In addition, the connecting fitting 70 is fixed to the vertical column 20 with the plate surface of the leg plate portion 72 facing to the left and right sides and with the leg plate portion 72 protruding horizontally outward, perpendicular to the extension direction of the vertical column 20.

[0048] The connecting fitting 70 fixed to the vertical column 20 in this manner connects the vertical column and the various beam bodies together with the side of the vertical column 20 and the end faces of the various beam bodies in face-to-face contact by passing the fixing bolts 73 through the holes 72a of the leg plate portion 72 inserted into the end face slits 73 of the various beam bodies from the left and right sides of the various beam bodies.

[0049] In other words, the final assembly form of the various beams 30, 40, 50, 60 is such that at the surface joints between the vertical column 20, the upper beam 30, the lower beam 40, the erection beam 60, etc., the "side face" of one square timber is abutted against the "end face" of the other square timber, and the respective surfaces are joined together with connecting fittings 70.

[0050] Specific assembly forms of the beam bodies 30, 40, 50, 60 are as follows (1) to (3).

[0051] (1) Regarding the manner of using the metal joints 70 for interposing the four lower beams 40 between the lower ends of the vertical columns 20, and the manner of using the metal joints 70 when erecting the lower ends of the vertical columns 20 at the four corners of a floor frame 80 in which the lower beams 40 are arranged in a square shape in a plan view The face plate portion 71 of the U-shaped connecting fitting 70 is fixed to one side of the lower end of the vertical column 20 with a fastener 71c such as a bolt, and the leg plate portion 72 protruding from one side of the lower end of the vertical column 20 is fitted into two vertical end face slits 73 provided on the end face of the lower beam 40, and a fixing bolt 74 is inserted from the side of the lower beam 40 and penetrates the hole 72a of the leg plate portion 72 to fix the vertical column 20 and the lower beam 40 together.

[0052] (2) How to use the metal joints 70 for connecting the four upper beams 30 and the four intermediate beams 50 between the upper ends of the vertical columns 20 The face plate portion 71 of the U-shaped connecting fitting 70 is fixed to the side of the vertical column 20 with a fastener 71c such as a bolt, and the leg plate portion 72 is fitted into two horizontal end face slits 73 formed at the end of the horizontal beam, and a fixing bolt 73 is inserted from the side of the beam and penetrates the hole 72a of the leg plate portion 72 to connect and fix the vertical column 20 to the beams 30, 50.

[0053] (3) How to use the joint fitting 70 for installing the erection beam 60 between the upper beams 30 The face plate portion 71 of the U-shaped connecting fitting 70 is fixed to the side of the upper beam 30 with a fastener 71c such as a bolt, and the leg plate portion 72 is fitted into two horizontal end surface slits 73 formed at the end of the horizontal erection beam 60, and a fixing bolt 73 is inserted from the side and penetrates the hole in the leg plate portion 72 to fix the upper beam 30 and the erection beam 60 together.

[0054] In the frame of the rectangular box-shaped emergency shelter A1 constructed as described above, wall bodies 90 are stretched between the vertical pillars 20 as shown in Figs.

[0055] In other words, a wall body 90 having a width that is half the width of one surface between the framework of the corner is stretched over the dihedron at the framework corner of the refuge hut A1, and by stretching this wall body 90 over the dihedron at the framework corner of the refuge hut A1, the other opposing dihedron is made into a space that allows small children to enter and exit, and the small children can enter and exit from this space and play.

[0056] Moreover, the wall body 90 is made of a plate material having a certain thickness so that it is fitted between the intermediate beam body 50 and the lower beam body 40, with the upper and lower end faces of the wall body 90 abutting the upper and lower faces of each beam body.

[0057] By combining various beams 30, 40, 50, 60 of such a configuration with a wall body 90, the framework of the vertical column 20 and various beams 30, 40, 50, 60 is supported by the wall body 90, improving the holding power of the framework, and further, the wall body 90 is stretched at right angles to the corners of the corners, rather than stretched on the four sides of the beam framework.

[0058] As shown in Figure 1, the two opposing sides are open to allow children to enter and exit freely, and when the square box-shaped framework of the emergency shelter is stored in the large room, the side of the emergency shelter facing the window in the large room is designed to prevent glass shards from flying off and entering the emergency shelter in the event of a disaster.

[0059] From this perspective, when considering the location of the wall body 90, it is necessary that it be on at least two or three sides of the evacuation hut A1. However, taking into consideration the convenience of young children entering and exiting the hut to play, the wall body 90 is installed on at least two sides, thereby achieving a balance between stimulating young children's play activities and ensuring evacuation and safety in the event of a disaster.

[0060] A floor frame 80 formed by assembling the lower beams 40 in a square shape has a number of small rectangular tile-shaped installation plates 81 laid on it, as shown in Figures 1, 5, and 6. In other words, the square floor section 10 is composed of the floor frame 80 and a number of installation plates 81 on the inside of the floor frame 80.

[0061] As shown in Figure 6(b), the laying plate 81 is composed of a laminate of an underlay sheet 82 made of a foam material such as foamed urethane, a bottom sheet 83 made of soft resin, an intermediate sheet 84 made of two layers of foam material 84a, 84c with a wood wool board 84b in between, and a topmost resin top sheet 85.

[0062] This structure provides cushioning against the friction and jumping that occurs when children play. Moreover, the individual installation plates 81 can be replaced or repaired whenever they become damaged.

[0063] Various kinds of playthings for children are arranged inside the rectangular box-shaped framework of the evacuation hut, allowing children to play and protect themselves from falling objects from above during a disaster while still playing.

[0064] As shown in Figures 1 and 5, the play equipment for small children includes various items essential for the development and education of small children, such as bouldering equipment, slides, assembly toys, hanging platforms, ropes, nets, hammocks, bookshelves, trampolines, building blocks, swings, basketball equipment, tables, chairs, flower beds, and small swimming pools for children.

[0065] In addition, the rectangular box-shaped frame emergency shelter can be installed inside living spaces such as kindergarten buildings, school buildings, and business rooms in buildings, and is not necessarily used for the evacuation of young children; it can also be installed inside compartments of buildings.

[0066] In other words, in the event of an earthquake while businessmen are at work, they can take refuge in a square box-shaped framework emergency shelter installed in a corner of a building room, which will allow them to escape from objects falling from the ceiling, and important communication equipment can be installed inside, enabling them to communicate with the outside world in the event of a disaster. [Explanation of symbols]

[0067] A Roof-type frame structure 10 Square floor 20 vertical column 30 Upper beam body 40 Lower beam body 50 Intermediate beam 60 Erection beam 70 Joint fittings 80 Floor frame 81 Installation plate

Claims

1. Four vertical columns stand at the corners of the square floor, Four upper beams are installed between the upper ends of the four vertical columns; Four lower beams installed between the lower ends of the four vertical columns; Four intermediate beams are installed between the four vertical columns at the upper intermediate positions between the upper beam and the lower beam; A plurality of erection beams erected between opposing upper beams; and metal fittings interposed at the joints of each of the square members constituting each vertical column, the upper and lower side beams, the intermediate beam, and the erection beam, The metal joints are made up of a face plate that faces the end faces of the timbers and a leg plate that protrudes at a right angle from the face plate, and are generally formed into an approximately T-shape or a U-shape. When joining the timbers, the metal joints are placed between the end faces of the vertical columns, upper and lower beams, and erected beams and the face joints of each side to perform the function of joining the timbers together. The face plate portion is fixed to the side of the square timber to be joined, and the leg plate portion is embedded in the end surface slit of the square timber to be joined, so that the leg plate portion is fixed in the end surface slit, The square floor section is a shed-type frame structure for emergency evacuation, characterized in that it is constructed by laminating an underlay sheet made of a foam material such as foamed urethane, a bottom sheet made of soft resin, an intermediate sheet made of two layers of foam material with a wood wool board in between, and a topmost resin top sheet.

2. A shed-type emergency evacuation frame structure as described in claim 1, characterized in that the surface connections between the vertical columns, the upper beams, the lower beams, the erection beams, etc. are made by abutting the end face of one square timber against the side face of the other square timber and joining them together using metal fittings between them.

3. 3. A hut-type emergency evacuation framework structure according to claim 1 or 2, characterized in that various toys for children are arranged inside the evacuation hut, which is a square box-shaped framework formed by each of the square timbers.

4. The small emergency evacuation shelter according to claims 1 to 3, characterized in that the rectangular box-shaped framework evacuation shelter is installed inside a living space such as a kindergarten building, a school building, or a business room in a building. House frame structure.

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