Soft fitting structure and structure using fitting portion of soft fitting structure

Abstract

To propose a fitting structure that absorbs variation in sheet thickness and reduces and utilizes a waste generated in processing of an EVA sheet in manufacturing a light and soft assembly model by utilizing the EVA sheet.SOLUTION: In assembling a three-dimensional object by using an EVA sheet being a soft member, in consideration of a fitting method utilizing a characteristic of the soft member, a novel fitting structure is devised in which the soft member is fit by deformation of any of pressing, bending, and torsion, so that the above problem can be solved and an assembly product that has original design and is safe even for a child due to its lightweight and softness can be proposed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an assembled product using a soft member. [Background technology]

[0002] In the manufacturing process of educational toys and footwear that processes EVA materials (ethylene-vinyl acetate copolymer resin), when cutting out plates of a specified thickness from the EVA material with a slice cutter, when peeling off the front and back of the material (such as the first slice or the last slice), thin sheets or sheets of uneven thickness that cannot be used for products are produced, and these sheets of EVA material with varying thicknesses are incinerated as waste. This application was filed after examining whether this EVA sheet waste could be effectively utilized, and came up with various connection parts that absorb the thickness variations, and found useful solutions. Fitting Synthetic structure and its Fitting This invention reduces waste materials at manufacturing sites and recycles them into new products, contributing to the SDGs. There are many products made with parts of uniform thickness that must have been precisely controlled, which is difficult to achieve with EVA sheet waste materials, but there are also products with parts of uneven thickness. Fitting There are no products that take this into consideration.

[0003] Widening the back of the connection groove to enable right-angle connections (Patent Document 1), making the groove serpentine to improve the degree of fit (Patent Document 2), and bending the end of the fitting groove to improve the degree of fit (Patent Document 3) Fitting However, all of these methods require strict control over the precision of the groove width and material thickness. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2019-024586 [Patent Document 2] Patent Publication No. 2011-125622 [Patent Document 3] Patent Publication No. 2012-040288 [Non-patent literature]

[0005] [Non-Patent Document 1] https: / / x.gd / Ft3JL Summary of the Invention [Problem to be solved by the invention]

[0006] As the addition of a three-dimensional assembly element to flat puzzles popular with children has made puzzles a hit with adults, assembly models (wooden 3D puzzles) like those in Non-Patent Document 1 can now be seen in a wide variety of designs. Assembly parts are cut out of board materials such as MDF or Chinese veneer using a laser processing machine, and boards with parts for creating specific structures are sold in sets, and the purchaser assembles the boards by hand. Such MDF, Chinese veneer, and other board materials are made from materials that ensure a certain thickness precision, and grooves in the parts and the thickness of other parts are designed to match. Fitting By combining these, the desired structure can be assembled. In addition, as in Patent Document 1, there are educational toys that are safe for children and are made from a slightly thick, light, and soft plate-like material, but in order to use the EVA material that is mainly used as an assembly product in the same way as plate materials, it is necessary to cut and manufacture the EVA plate material while managing it so that a certain thickness is maintained. As a solution to this problem, Patent Document 2 proposes a method of making the mating groove meander, and Patent Document 3 proposes a method of forcibly bending the mating parts, but these alone are not sufficient. This is because at sites where EVA products such as educational toys and footwear are manufactured, large rolls of EVA are sliced ​​to cut the EVA sheets and boards needed for the products. In order to give the products a clean surface, the first and last slices of the slicing process have to be discarded. As EVA is a soft material, there is a tendency for its thickness to vary. This means that waste materials that have not been processed into products must be disposed of, resulting in waste effort and costs. This invention solves the problem of soft materials having uneven thickness and also makes it possible to effectively use waste materials. Fitting This proposed interlocking structure makes it possible to create new assembly models using the light and soft materials that are the advantages of soft materials. Furthermore, this interlocking structure is not limited to assembly models, and can be used for larger structures using soft materials. Fitting We propose this technology as a useful tool to utilize joints as parts and to help operators and their workload. [Means for solving the problem]

[0007] As a means for solving the above problems, the present application aims to utilize the characteristics of soft materials. Fitting We propose a synthesis structure. Multiple plate-shaped parts Fitting When the two components are joined, at least one of the original components is made of a soft material. Fitting The joints used for joints can undergo changes and deformations that are only possible if the materials used are soft. The soft materials described here are materials that naturally return to their original shape even when bent or twisted, while non-soft materials are hard materials that cannot be bent or twisted, or that do not naturally return to their original shape over time even if they are bent or twisted. In the present application, this soft material is used, and when two components are fitted together at a connection portion, if the components are of a size that allows them to be pushed together, wall pressure occurs, if the receiving side is narrow, it is pushed apart, and if the fitting side is large, it is crushed. This is how the two components are fitted together by the minute expansion and contraction changes that are unique to soft materials. Fitting It has the advantage that it can be disassembled after assembly. moreover, Fitting When assembling or disassembling, the soft parts can be bent, twisted, or otherwise changed in shape, and some kind of deformation can be applied to connect the parts together. Fitting It is also possible to assemble and disassemble the parts, and each of the multiple connections can be deformed by bending, twisting, etc. the mating connections or parts. Fitting It can also be combined. This allows for transition fitting that takes advantage of the characteristics of soft materials without the need for strict control over thickness dimensional accuracy. Fitting This allows the parts to be deformed by bending, twisting, etc. FittingBy combining these components, it is possible to create assembly models with completely new designs that have never existed before, such as rounded exteriors, exteriors that look like a single sheet of parts folded, or zigzag designs like a snake.

[0008] The wall pressing force mentioned above is a concave pressure applied to the soft material. Fitting When a mating member is fitted into a mating receiving groove, if the mating member is smaller than the groove width, there is no change. However, if a portion larger than the groove width is fitted, wall pressure occurs, the groove wall is pushed open by the mating member, and the groove width is expanded. The mating member that is pushed into the groove is displaced by the Fitting The groove wall is smaller than the joint and the material is forced to shrink. This is impossible for hard materials, but soft materials have elasticity, so Fitting Due to the pressure on both parts, the fit is transitional and the soft part is Fitting Capable of combining and disassembling Fitting It is a combination. As mentioned above, due to the characteristics of soft materials, minute changes in expansion and contraction occur due to pressure or external force, so there are other benefits to making assembly models with soft materials. Assuming there is a groove to receive and a protrusion to push in, when a protrusion larger than the groove is inserted, this is the aforementioned wall pressing force, and as mentioned earlier, minute expansion and contraction occurs on both sides due to the pressure to expand and the pressure to crush, but for example, if there are multiple protrusions on the part to be fitted into multiple grooves, and there is even a slight dimensional error that causes the convex and concave parts to not fit together, in the case of hard materials such as wood, Fitting However, if the material is soft, it can be stretched or deformed slightly, so it is possible to fit it in according to the positional dimensional error. Fitting Allowing for some error in the fitting position, pulling and stretching the parts to be fitted Fitting You can also make the surface expand and contract, and bend the material. Fitting It is also possible to bond the material to a soft member.

[0009] In addition, in the case of hard materials, FittingIt is necessary to cut a straight concave groove with a groove width that is the same as or slightly larger than the thickness width of the mating parts and fit them together, but in the case of soft parts, if there is a possibility that the thickness of the part to be inserted into the groove will be thin, the concave groove is not straight, but rather a narrower area is provided deeper in the groove or halfway through the groove than the size of the end face side (entrance) of the groove width. This makes it possible to create a situation where the mating part is gripped in the narrower area even if the entire groove is not gripped, or where even a normal fit that allows easy insertion and removal can be firmly gripped even if only a portion of it is gripped. Furthermore, the pressure on the wall is too high, i.e. Fitting If the fitting area is too large and puts too much strain on the groove, a cut wider than the groove width can be provided along the innermost wall of the groove, which allows the groove wall of the soft material to deform more easily and relieves the pressure. This is also an intermediate fit. Fitting This makes it possible to combine

[0010] And other than pressing Fitting As a method of joining, a convex claw portion is provided on the connecting portion of the soft member, and a claw receiving portion is provided on the mating member. Fitting Combine. If the member with the claw is made of a soft material, the base of the claw can be bent to fit into the claw receiving part. Conversely, if the member with the claw receiving part is made of a soft material, the periphery of the concave claw receiving part can be bent to fit into the convex claw. Fitting In this case, even if the claw receiving portion is a hole that does not contact the end face of the member, if the periphery of the hole is soft, it is possible to fit the protrusion of the claw portion by temporarily bending the periphery of the hole, and, depending on the thickness and hardness of both materials, if the claw portion is a hard member, the soft member may be pressed in the thickness direction, causing the periphery of the concave claw receiving portion to temporarily become thinner, so that the claw portion fits into the hole and the protrusion gets caught in the hole, and if the member cannot be crushed, a cut may be made in part of the hole and the base may be bent like a claw portion, or the periphery of the claw receiving portion may be deformed to fit the mating claw portion. In this way, the parts with claws Fitting When fitting both materials, bend the base of the claws, not only in the case of soft materials, but also in the case of soft materials. Fitting Bend the joint or the area around the claw receiving part. Fitting Add any of the following transformations: Fitting If it is possible to fit the soft material to the hard material, the soft material side can be deformed. Fitting It can be combined. Basically, the claws in this application refer to convex protruding parts on the end surface of a member, parts where a cut in a hole or groove cuts to the end surface and becomes a convex protrusion when the base is bent, and parts where a cut in the surface of a member does not protrude but protrudes to the side when the base is bent. These protrusions are pressed against or fitted into the end surface, groove, hole, etc. of the other member, so that the claws get caught or attached to the other member. Fitting It refers to something that is in agreement.

[0011] A soft material can be curved in a way that is different from an assembly made from a hard material such as wood. For example, one or more connectors are provided on the opposite ends of a sheet, such as the left and right or top and bottom. Fitting When the sheet is bent, it becomes round in a cylindrical shape. If the material is soft, it is possible to create a structure in which the curved parts are not in close contact with each other when bent by bending or twisting. Similarly, as a structure that creates spaces, if multiple slit grooves are cut into a sheet of soft material and each slit is curved, for example, in a zigzag shape, spaces are created where the materials are not in close contact with each other. Fitting By using this combination method, it is possible to create a space in the soft material that can be used to make an exciting gift, for example by putting a present inside the space and using an assembled model as a container, or to create a fun item by putting a gas-filled balloon inside the space to make the assembled model float in the air.

[0012] As a method to absorb the variation in thickness of EVA scrap and make it possible to use materials with non-uniform thickness, a part made of soft material is provided with multiple overlapping parts, and a connection part is prepared in the mating part that assumes the thickness of that part. Fitting By joining the two layers together, it is possible to reinforce the thin and weak parts of the material. In addition, there is a method of sandwiching other materials in the area where the soft materials are overlapping. For example, if a part is prepared with one hard material sandwiched between two soft materials, the same type of connection can be provided to the three layers. FittingIn addition to joining the hard member, the hard member is sandwiched between two soft members that are larger than the hard member, and a connection is provided at the portion where only the soft member is provided. Fitting By applying deformations such as pressing, bending, and twisting using the joining method, the three-layered part is joined to other parts. Fitting It can be combined. These methods allow us to use thin materials, give them strength, and create parts that are soft on the outside and hard on the inside, allowing things that wouldn't stand up with soft materials to stand up, making it possible to accommodate variations in sheet thickness. Fitting This is a combined method.

[0013] The assembly model proposed in this application is a toy or ornament that can be made by placing multiple plate-shaped parts in one or more sheets of soft material (for example, EVA), cutting out these parts and assembling them. Fitting By utilizing the composite structure, it is possible to create light, soft, assembled model toys and ornaments with completely new shapes and innovative designs. Furthermore, the soft member using such a fitting structure Fitting If the joints can be prepared in advance as one part and can be combined with various parts of other materials such as hard materials, it will be useful when constructing large structures. Fitting By bonding and integrating the joint parts into a structural component, it has the potential to provide new structural components that can be assembled in a short time, the materials can be made compact, it can be assembled without architectural knowledge, the number of workers and the amount of work in the construction industry can be reduced, and electricity and tools are not required.We propose this technology as a technology that can be used in any environment, such as in the mountains, on the sea, and even in space, by securing the materials for the main parts near the site where the structure will be erected. Effect of the Invention

[0014] In conventional wooden assembly models, assembly parts are cut out of boards and then assembled by hand to create a three-dimensional object, so controlling the precision of the board thickness is important. However, depending on the structure of the assembly model, such as parts that hang down, it may be necessary to fix the parts with adhesive. This invention makes use of the characteristics of soft materials. Fitting This is a proposal for an assembly using a fitting structure, in which the soft material can be deformed by bending, twisting, or pressing to fit together, so by adjusting the shape of the fitting part as in this application, the fit tolerance between the fitting parts can be adjusted to the same level as an intermediate fit (small or no gap, light tightening). Fitting This makes it possible to manufacture assembly models that are easy to disassemble and assemble and do not require the use of adhesives. Shapes that are impossible with wooden assembly models, for example, the face of a dinosaur or the body line of an insect can be expressed by symmetrically arranging two wooden boards, whereas soft materials can be bent to express a face with a connected mouth or a rounded back, and because it is light and soft, it will not hurt people if dropped or thrown, and even if a child hugs it, it will simply deform, so there is no need to worry about injury like with wood. Also, if you want to include something else in a wooden assembly product, you have to assemble it into a box shape, but with soft materials, there are fewer connections and you can put a balloon, for example, into the space created by bending or twisting the parts, and it is not a dream to put a balloon filled with gas inside and make a light and soft EVA assembly model float in the air. Furthermore, even if there is some variation in the accuracy of the sheet thickness when processing a soft member into a sheet, the present invention can be applied to the member by deforming it. Fitting By using a joint structure, there is no need to worry about thickness accuracy, and new products can be created from EVA waste that had to be discarded until now, reducing the time and cost of disposal and contributing to the SDGs. The soft material assembly of this application does not limit the mating materials, so it can be combined with other materials, and it can be used with soft materials regardless of EVA waste or thickness. Fitting By utilizing the combined structure, it can be used for large structures. Fitting It is also possible to form composite products. [Brief description of the drawings]

[0015] [Figure 1] A diagram explaining a fitting structure assembled with various fittings. [Diagram 2] A diagram explaining the configuration of the assembly parts of FIG. [Diagram 3]A diagram explaining the bending and twisting of the convex and concave fitting in Figure 1 [Figure 4] FIG. 2 is a diagram illustrating the fit of the other parts in FIG. 1. [Diagram 5] FIG. 2 shows a diagram of a mating part provided on a sheet of soft material. [Figure 6] A diagram explaining how multiple parts of a dinosaur model fit together [Figure 7] A part of the assembly model of FIG. 6 is used to explain another fitting. [Figure 8] A diagram explaining the fitting of other connecting parts [Figure 9] Diagrams explaining the fitting of other connection parts [Figure 10] Diagram showing the main body and mating parts DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the drawings are merely examples for the purpose of explanation, and the present invention is not limited to the following embodiment. EXAMPLES

[0017] First of all, in recent years, there are many wooden assembly toys that can be seen in bookstores and toy stores, such as elaborately made miniature wooden structures, insects and other creatures, and assembly models of dinosaurs that are popular among children that can be assembled and displayed. As laser processing machines have become more widespread, it has become possible to cut wooden boards into precise shapes, and recently these processing machines have become affordable for the general public, making it possible for individuals to process board materials such as plywood and MDF with a laser processing machine and make them themselves. For example, as shown in the wooden assembly model presented in Non-Patent Document 1, a wide variety of assembly models of creatures, vehicles, buildings, etc. with various designs are already available on the market, and there are many assembly enthusiasts from children to the elderly. In the case of these wooden assembly products, the products are produced under management to ensure a certain board thickness, and the parts are provided with Fitting Combined groove width and Fitting The thickness of the mating parts is uniform, so each part Fitting And because it is made of wood, the parts can be attached with adhesive, so they won't fall out of the downward grooves and can be enjoyed as ornaments for a long time.

[0018] Such wooden assembly models are fine to look at as ornaments after assembly, but if children are interested in insects or dinosaurs, for example, and want to play with them or carry them around as toys, they are hard and angular, making them unsuitable for hugging and posing a risk of injury if they are hit by something. Wood is hard and has no elasticity to be crushed by pressing it with your fingers, and assembled products fixed with adhesives cannot be deformed small by external pressure such as when hugged, and when the assembled products become large they become heavy. If these assembly models could be made from light, soft materials, they would be safe for children to play with and would take advantage of the properties of the soft materials. Fitting By using this method, it is possible to create assembly models with innovative designs that can be repeatedly assembled and disassembled without the need for adhesives. Fitting Synthetic structure and Fitting A structure using a synthetic moiety is proposed in this application. The soft member described here is a member that naturally returns to its original shape even when bent or twisted, and conversely, non-soft members are hard members that cannot be bent or twisted, or that do not naturally return to their original shape over time even if they can be bent or twisted. In this application, members available on the market are classified into hard and soft members and explained. The resin of the soft member used in this application is thermoplastic resin, and a representative member is EVA (ethylene vinyl acetate) sheet and the technology born from using the waste material is explained. Note that there is also thermosetting resin as the same resin, but this is classified as a hard member similar to metal and wood in this application, and the soft interlocking structure proposed in this application is explained as an interlocking structure in which at least one of the plates is made of this thermoplastic resin when interlocking parts are provided on various plate materials and these are interlocked. In the description of the fitting structure of the present application in Fig. 1, the fitting plate materials are both soft materials made of thermoplastic resin, and the description is based on the assumption that waste EVA sheets are used as a representative material. In particular, EVA sheets are made of a single foam material, and are used for educational toys, footwear bases, and floor coverings. They are light, float on water, and are soft enough to feel elastic when pressed with a finger.

[0019] FIG. 1 is a schematic diagram of the present invention. Fitting Some notes on the synthesis structure Fitting Assembled using the joining method Fitting This is a diagram showing an assembled structure, and the explanation will be given assuming that a three-dimensional object is assembled using EVA sheets, which are soft materials. Figure A shows a flat sheet that is cut and the parts that are removed are placed in various places. Fitting FIG. 1 is a perspective view of the assembled product, and FIG. 2 is a perspective view of the assembled product from the back side. The shape of the figure does not imitate any specific shape, but is a sheet of soft material in various shapes. Fitting I would like to explain the proposals of this application step by step, explaining that by using this integration method, it will be possible to create objects with special shapes and construct complex or unusual assembled structures. To explain the structure in this figure, we will give tentative names to the parts used in the structure. The structure is made up of six parts: a vertical plate (3a), an upper plate (3b), a lower plate (3c), a twisted plate (3d), a rectangular plate (3e), and a middle plate (3f). Fitting A composite structure (1) having a plurality of connecting portions (4) Fitting The connecting portion (4) will be explained later in FIG. 3 and subsequent figures.

[0020] Figure 2 is a plan view of a soft material, in this case an EVA sheet (2) before it is assembled into a three-dimensional object, with the shapes of multiple parts (3) cut into it, and by cutting the shapes of the various parts using a formwork press or laser processing machine, the various parts can be easily pulled out and assembled by hand, just like the wooden assembly model mentioned above. To give some details about the vertical board (3a) in this figure, it is L-shaped and the top and bottom are connected, and when the front half (3a1) and the entire back surface (3a2) are folded, the half-surface area becomes two layers, and part of the entire back surface (3a2) has a slit section (3a3) with six slit grooves. The upper and lower bending claws (3a4) are provided on the entire back surface (3a2), and half of the bending claws (3a4) that have the same shape when the vertical plate (3a) is bent are also provided on the upper and lower sides of the front half surface (3a1). A middle plate fixing hole (3a5) is provided almost in the center when the front half surface (3a1) and the entire back surface (3a2) are overlapped, and a convex claw (3a6) is provided at the upper left of the front half surface (3a1) and a claw receiving hole (3a7) is provided at the lower left of the entire back surface (3a2). The uses of these will be explained in Figures 3 and 4. To briefly explain the linear notch (3g) shown in the member (2) and the linear notches (3h) shown in various places along the claw receiving holes (3a7) and other grooves and holes that are not named, the notch (3g) is a notch that makes the member easier to fold; soft members tend to bend in a rounded manner, but the notches make it possible to bend with sharp corners; this will be mentioned again in the explanation of Figure 3. The notch (3h) is a notch that runs along one side of a groove or hole that fits with another member, and as will be explained again in Figure 8B, the soft member is easily deformed when a mating member larger than the groove is fitted into it. Fitting This is a cut structure that can have useful effects that are only possible with soft materials, such as making it possible to fit the material together, or mitigating loads that may be applied when a mating part is fitted in place.

[0021] Figure 3 shows a part of the three-dimensional object in Figure 1, with the upper plate (3b) and lower plate (3c) fitted above and below the vertical plate (3a). Two holes are drilled in a V-shape on one side, and the bend of the rectangular plate (3e) is maintained by bending the rectangular plate (3e) vertically and fitting its edges into the four holes above and below the V-shape. If a right-angled cut (a long vertical line in the center in the figure) is made in the rectangular plate (3e) in the direction you want to bend, the soft material can easily bend at a sharp angle close to a right angle rather than a round curve. On the other side are the upper plate (3b) and the lower plate (3c). Fitting The groove for fitting is cut, and the torsion plate (3d) is twisted half a turn. Fitting At this time, the shape of the grooves cut into the upper plate (3b) and the lower plate (3c) is made narrower in part so that the torsion plate (3d) can be firmly fixed. As for the bending claws (3a4) provided at the top, middle and bottom of the vertical plate (3a) in FIG. 2, the central hole and bending claw (3a4) are provided at the top plate (3b) and the bottom plate (3c). Fitting When fitting, the bent claw (3a4) is temporarily bent in three and passed through the hole, and then opened again to its original shape, and the convex claws on the left and right ends of the bent claw (3a4) are fitted into the cut grooves on both sides of the upper plate (3b) and the lower plate (3c), thereby representing a state in which the vertical plate (3a) and the upper plate (3b) or the lower plate (3c) are firmly fitted together. At this time, the vertical plate (3a) bent in the center from top to bottom due to the shape of the vertical plate (3a) in Figure 2 has a side where the entire back surface (3a2) is only one piece, and a side where the bent claw (3a4) overlaps with the front half surface (3a1) to form two pieces, so the cut grooves on both sides of the upper plate (3b) and the lower plate (3c) are pre-prepared to accommodate one claw and two claws.

[0022] In Figure 4, other Fitting The case and structure will be described with reference to the same perspective view as FIG. The tip of the convex claw (3a6) protrudes from the bottom right of the perspective view, but in Fig. 2, this shows the state in which the convex claw (3a6) at the top left of the vertical plate (3a) is fitted into the claw receiving hole (3a7) at the bottom left. At this time, the tip of the convex claw (3a6) is slightly larger than the claw receiving hole (3a7), the base is slightly thinner than the tip, and a notch is provided in the center, and the claw receiving hole (3a7) has a slightly long notch on one side and round holes on both ends. The intention of this shape is to make the base of the convex claw (3a6) slightly thinner so that it is easier to bend, and to make the tip round so that it is easier to push into the hole. The tip is larger than the hole, but because the soft material is elastic, the force of pinching it with your fingers temporarily reduces its thickness and width, and by making a cut in the center, when pushing it into the hole, the width of the claw shrinks by the amount of the cut gap, making it easier to insert, and when released, it returns to its original shape and stays there. In this way, if the material is soft, the tip of the convex claw (3a6) can be temporarily stretched and deformed by the force of pinching it with your fingers to fit into the claw receiving hole (3a7) and stay there, and when it is pulled out, the convex claw (3a6) stretches and shrinks in width, and the claw receiving hole (3a7) is pulled and stretched, and this Fitting The match can be broken. At that time, in the nail receiving hole (3a7), a longer cut is made along one side of the square hole, so the pressure of pushing the nail in makes the hole temporarily larger. When the tip of the nail passes through the hole and the thin base settles inside the hole, the size of the hole returns to its original size. Even if the nail receiving hole (3a7) is small, the large convex nail (3a6) Fitting The small round hole at the end of the notch of the claw receiving hole (3a7) is provided for the purpose of helping the hole and the notch to widen when pressed, and also for the purpose of preventing the soft member from tearing. In addition, although not shown in the figure, a U-shaped mating part is attached to a member with two holes. Fitting When joining, if the distance between the holes and the distance between the two U-shaped protrusions are different, for example, if the material is hard, Fitting If the material is soft, it can be pulled and stretched to remove the uneven holes and protrusions. Fitting It can be fitted with holes and grooves. Fitting Even if there is an error in the positional dimensions of the mating members, the mating members can be fitted together by expanding and contracting the soft member.

[0023] There are many assembly models made of hard materials, not only wood but also thermosetting plastics and metals, but all of them are made by cutting straight plate-shaped materials into precise shapes. Fitting It is a three-dimensional object that is assembled by combining and assembling small straight parts, and is merely a hard assembly model with a specific arrangement of small straight parts. However, if it is a three-dimensional object made of soft materials, the cut parts can be assembled in the same way. Fitting Naturally, it is possible to combine the pieces to create an assembly model, but by bending and twisting the pieces as shown in Figures 1 to 4, it is possible to create objects with special shapes or complex or unusual assemblies. First, regarding the connection, in the case of an assembly model of a hard material, if the part or thickness of the mating part that fits into the groove is larger than the width of the receiving groove provided in the part, it will not be possible to fit it in. However, if it is a soft material, it will be possible to fit it in if the part or thickness is larger than the receiving groove or hole. Fitting Even if the part or thickness of the mating part is slightly larger, the wall of the part is pressed and the groove width is Fitting The material expands when pushed by the mating part, and the part inserted and its thickness are compressed by the groove walls, which is impossible for hard materials. Fitting This is possible if the material is a soft material. In addition, the bending and twisting deformations shown in the figure Fitting This is only one example, but to add a little more detail, for example, a rectangular plate (3e) is bent at a nearly right angle and fitted into four holes on the top and bottom, but the force that tries to return the plate to its original straight shape causes the holes and the plate to move in a straight line. Fitting The bond between the two parts may become stronger, or the hardness of the two parts may cause deformation of each other. It is also possible to create rectangles other than right angles, and a wide variety of shapes can be created, such as fixing round, arc-shaped plates at the top and bottom to cause the upper and lower plates to deform like a bow. In addition, a twisted plate (3d) can be used to create a spiral shape like a screw, and this Fitting By combining the two plates, it is possible to create a subtle twist in the upper and lower plates, and by applying force to the spiral from all around, a spring-like repulsive force can be incorporated into the assembly. Connection and Fitting I will explain this later with a different diagram, but as I have explained so far, if you make an assembly model using soft materials, you can achieve things that are impossible with hard materials. FittingIt is possible to create various joining methods and shapes, and since it is light and soft, it is safe for children and allows them to enjoy making a variety of assembled products.

[0024] Next, the shape of the vertical plate (3a) in Figure 4 will be explained as an example. The L-shaped sheet as shown in Figure 2 is folded in half vertically, and the above-mentioned convex claw (3a6) and claw receiving hole (3a7) are inserted. Fitting As explained in the explanation of Figure 3, the lower plate (3c) and the vertical plate (3a) are bent at the top and bottom by the bent claws (3a4). Fitting Two joints Fitting At this time, the front half surface (3a1) and the entire back surface (3a2) are folded and the two sheets overlap, but only the upper and lower ends are in contact and connected, and the other surfaces are not in contact because the members are curved. A similar state can be expressed by the slit section (3a3), which has six slit grooves cut into the vertical plate (3a) in Fig. 2, but in Fig. 4, every other slit is curved in a zigzag pattern to create a space. This figure shows that a space can be created in the vertical plate (3a) by inserting the middle plate (3f) into the space in the vertical plate (3a) and fitting it so that part of it protrudes into the middle plate fixing hole (3a5) opened in the center.

[0025] In this way, when making a three-dimensional object using soft materials, it is possible to create spaces between the sheets, rather than simply assembling or stacking the sheets. Alternatively, a plate material (either soft or hard material) can be sandwiched between two overlapping sheets of soft material to make one part. For example, a part can be made with a plate material sandwiched between EVA sheets, and then a sheet material can be placed in the position of the soft material. Fitting It is also possible to create joints for jointing and supply dinosaur legs as assembly parts with a soft outer periphery but a firm core without using adhesives. Furthermore, if you take advantage of the fact that it can create space, you can create space in a 3D object made with EVA sheet and include other components there. For example, you can create an empty space in a 3D object made with EVA sheet, such as a ship or an animal, and put a present in that space, or you can put a balloon filled with gas inside to make the object float in the air. After the balloon deflates or you have taken it home, you can enjoy assembling and disassembling the EVA object as a puzzle, or you can display it as a figurine to keep as a memento of the event for a long time. The reason why these uses are possible is because soft materials are used. They can be bent, twisted, curved and rolled, and can be designed to effectively utilize the characteristics of soft materials, such as providing space between components and allowing other components to be sandwiched in between. Fitting By using the combined method, Fitting This is because it will be possible to provide a new type of assembly model that is easy to assemble and disassemble and does not require glue.

[0026] Next, FIG. 5 shows an example of the present application in which a dinosaur assembly, such as that found in a wooden assembly model, is provided as a sheet of soft material. Fitting The synthesis structure will now be described in more detail. Here, we are assuming an EVA sheet, and expressing the state in which the parts necessary for assembling a three-dimensional object are cut into it using a formwork press or laser processing machine. In this case, it is a sheet with many parts (3) cut into two pieces (2), and each part is pulled out by hand. Fitting By assembling the parts (3) in the same way, you can create an assembly model of a dinosaur. The parts configuration shown in this figure looks similar to a wooden assembly model, but the proposed Fitting Integration methods are included in various places. Fitting The structure is made of a composite material, which means it is possible to create a three-dimensional object that can be repeatedly assembled and disassembled. As the following drawing shows, this is possible only with soft materials, which is not possible with an assembly model made of hard materials such as wood. Fitting The methods are described below in order.

[0027] Figure 6 is a perspective view of an assembly model made from parts taken from the sheet in Figure 5. Based on the diagram of an assembly model of a dinosaur, a plesiosaur, the application is made using a provisional name. Fitting Some of the methods for combining are described below. Soft materials are softer than hard materials, and can be bent when force is applied during production and after assembly. This allows for the assembly to be safe for children to hug, but the drawback is that because they are soft, it may be difficult to make them strong enough to connect the front and back of the spine, which acts as the axis of the body, as shown in the figure. In the case of a wooden assembled model, the two body axes (6a) and (6b) can be aligned in a straight line, and the front and back can be connected by fitting the core bone (6g) into the connection below the spine. It is possible to connect soft materials in a similar way, but if many vertebrae are fitted into the neck and back, the weight of the body axes may cause them to move apart or become twisted. Therefore, we have developed an effective method for soft materials. Fitting The dinosaur's body axis is made up of two sheets, (6a) and (6b), and when they are joined together, a part of the sheet is overlapped. Fitting This is a method of reinforcing the large spine (6c) and small spine (6d) by joining them together. Fitting The joint is large and the thickness of the two sheets of the axis (6a) and (6b) is inserted into the joint, fixing the two points. The other vertebrae are fixed in place by small holes such as (6e). Fitting This is a method of simply arranging the spine along a single body axis using the joining holes. The spines (6c), (6d), and (6e) have square holes, but each has a notch on the underside, and because they are made of soft material, the bottom edge can be bent with the fingers. To fit them onto the body axis (6a) or (6b), the bottom edge is bent open, the thickness of the spine is placed in the U-shaped groove on the body axis, and the protruding bottom edge of the bent spine is inserted into the square hole in the body axis at the end. Fitting At that time, by drilling holes in the spine (6c)(6d) where the two spinal components overlap, and drilling a hole in the spine (6e) where one piece fits, the spine can be stably positioned, and since part of the spine is double-layered, it becomes firmly integrated and can withstand the weight of the spine, and the two pieces do not come apart. Temporarily bend the lower edge of this spinal hole FittingIn this application, the protrusion that is inserted into the hole of the mating part is called a claw, and the claw and the hole, so-called unevenness Fitting The advantage of using soft materials for assembly is that they can be easily combined. Soft materials do not have the strength of hard materials, but they have various advantages such as lightness and softness. By stacking multiple sheets of soft materials, their strength can be increased, and the number of sheets can be increased. Fitting It was assumed that Fitting It is possible to compensate for the disadvantages by providing a joint, and as will be described later, by creating a part in which another material is sandwiched between soft materials, the advantages of the soft materials can be utilized. Fitting It is also possible to create new assemblies and structures by connecting them together at joints.

[0028] Next, regarding the gastric ribs, the dinosaur in Figure 6 has gastric ribs (6h) assembled to the bottom of the model, and both sides of the core bone (6g) are connected to the body axis (6a) and (6b). The rib (6f) placed on this core bone (6g) has a rectangular hole in the rib-shaped part as shown in the figure, and a notch is made in the upper center. In the case of a wooden assembled model, the abdominal rib (6h) needs to be finished in the shape of a abdominal rib (6h) by fitting ten bones, each half of which is split into two halves, into the core bone (6g) on ​​both sides. However, when made from soft materials as in this application, it is possible to mold the left and right ribs as a single unit, as in the rib (6f) in the figure. Fitting Therefore, half the rib (6f) parts are sufficient. Because the flexibility of the soft material allows the ribs (6f) to be bent and the cuts to be widened, the thin core of the core bone (6g) can be placed in the hole and the shape of the abdominal rib (6h) can be easily formed. This is not just significant in reducing the number of parts, but also represents a situation in which the ribs, which would easily come off if pulled left or right if made of wood, do not come off easily and do not shift sideways or up or down, and the shape of the abdominal rib (6h) can be easily and neatly formed, and the shape can be maintained without the need for adhesives.

[0029] Furthermore, in the case of wooden dinosaurs, although this is not explained in the diagram, two identical face parts are inserted on the left and right as in Non-Patent Document 1, so when viewed from the side you can get an idea of ​​what a dinosaur's face looks like, but when viewed from above, below or the front, the two boards are arranged symmetrically in an inverted V shape, which is unfortunate for something that can be called a dinosaur's face. If a soft material is used as in the present application, it is possible to create a face (6i) with a shape connecting the nose to the lower jaw as shown in Figure 6, and by bending and connecting the sheet, the upper and lower parts of the dinosaur's mouth and the alignment of the teeth can be connected, making it possible to provide an assembly model with an unprecedentedly realistic impression.

[0030] In FIG. Fitting In order to explain the connection in detail, the situation in which the face part (7a) is connected to the tip of the dinosaur's body axis (6a) described in FIG. 6 will be described in detail using tentative names. FIG. 7A shows that the neck part (7b) is connected to the tip of the body axis (6a) and then the bent face part (7a) is connected. This body axis (6a) and neck part (7b) are taken as an example of the present application. Fitting Let me introduce some examples of such cases. Figure 7B shows the body axis (6a). Fitting The structure shown in FIG. 7C is that the neck portion (7c) is connected by fitting the wall thickness of the neck portion (7b) into the groove (7). Fitting The fitting grooves (7) are provided, and by fitting the grooves together, the necks (7c) fit together without shifting sideways, and both parts fit together at the back of the grooves. Fitting This shows a structure in which the connection is made by sandwiching the thickness of the mating parts. The structures B and C are widely used in existing wooden assembly models. Fitting This is a combined method, and by controlling the thickness accuracy and gluing both parts together, it is possible to assemble wooden parts. It is difficult to require thickness accuracy when using soft EVA sheets, especially when using recycled materials, but because of their softness, Fitting By using this method, it is possible to compensate for variations in thickness accuracy. Parts B and C in Figure 7 FittingThe mating grooves (7) are formed by cutting the end faces of the respective members in a concave shape toward the back, and the wall thickness of the mating member is fitted into the concave grooves (7). Fitting The fitting groove (7) Fitting A groove is opened with a width equal to or less than the thickness of the mating member. Fitting When the joint is pressed, if it is a soft material, Fitting When the mating parts are pushed together, the walls of the parts are pressed against each other, and the walls of the groove are pressed against the inside Fitting The groove width expands when pressed by the mating part, and the wall of the inserted part shrinks when pressed by the groove wall. This is due to minute expansion and contraction that occurs only with soft materials. Fitting This type of fitting is achieved by utilizing the elasticity of the components, and the components stretch and shrink when pulled together, resulting in minute deformations. Fitting This makes it possible to remove the mismatch.

[0031] When using soft EVA sheets as materials, even scrap materials may produce thinner parts than expected. If a thin part is fitted into a large groove, it will fall out easily. Fitting This can be done in a combined manner. In Figure 7, D has the body axis (6a). Fitting There is a groove (7) and a square claw receiving portion (6) is provided a short distance away from the groove (7). Fitting There is a fitting groove (7), and a claw (5) is provided at the end of the groove. The claw (5) is made by cutting a groove (which can be interpreted as a hole because it does not contact the end face) away from the end face to create a convex claw on the end face side of the groove of the neck (7b), and making a notch in the center of the groove width to create the convex claw (5). Fitting When the neck portion (7b) is fitted into the fitting groove portion (7), the base of the claw portion (5) can be temporarily bent and opened because it is made of a soft material, so the protrusion of the claw portion (5) fits the axis (6a) of the body. Fitting The protrusion can be fitted over the inner wall of the mating groove portion (7) and into the claw receiving portion (6) beyond it. this FittingBy fitting the claw receiving part (6), about half of the groove width of the neck part (7b) is hooked on the protrusions from both sides of the thickness of the body axis (6a). Even if the thickness is smaller than the groove width, the claws and holes will catch and it will not easily fall out, and it will not fall out easily even if it is pulled. Fitting It can be removed by applying force to remove the mating parts. Fitting It becomes a match.

[0032] E in Figure 7 is similar to the spines (6c) and (6d) shown in Figure 6, and represents that the shape of the claw portion (5) is not half the groove as in D, but the length of the claw protrusion can be made equal to or greater than the width of the groove. When the base of the claw portion (5) is temporarily bent and opened and the neck portion (7b) is fitted into the claw receiving portion (6) of the body shaft (6a), the convex protrusion of the claw portion (5) is longer and deeper in E than in D, and hooks into the thickness of the body shaft (6a). Figure 7 shows structures A and B that are already used in wooden assemblies. Even with soft materials, if the thickness accuracy is controlled, it can be used in a transition fit (small or no gap, light tightening). Fitting However, when using hard materials such as wood, it is not possible to temporarily bend the claws as in D and E. This D and E Fitting In this method, even if the body axis (6a) is made of a hard material, the neck (7b) made of a soft material is Fitting It is possible to combine the Fitting The integrated structure makes it possible to provide an assembly model that combines parts made of different materials, such as wood and EVA, with parts made of hard and soft materials.

[0033] Other Fitting In order to explain the cases, examples A to E are shown in Figures 8 and 9. The left side of the figure shows the shapes of the receiving part and the fitting part with tentative names, and the right side shows the two parts fitted together. A in Figure 8 overlaps with C in Figure 7, but in this state, the groove (8a3) of the receiving part (8a1) is fitted into the groove (8a4) of the fitting part (8a2), ​​and both have a straight U-shaped concave groove from the end face of the part. In this combination, if the thickness of the part to be fitted is thinner than the groove width, it will come off easily, but if the thickness is thicker than the groove width, the groove wall will be pressed as shown by the arrow in the right figure, Fitting It can be combined. Inserting a portion larger than the groove width is an impossible fit for hard materials, but with soft materials, the elasticity of the material helps with some margin of error, and as mentioned in FIG. 7C, the peripheral wall of the groove (8a3) is pressed against the thickness of the fitting part (8a2), ​​or the peripheral wall of the groove (8a4) is pressed against the thickness of the receiving part (8a1), or both of these actions cause the groove to sandwich the mating part and connect, resulting in a tight fit. Fitting However, because it is a soft material, if the parts are pulled together, the parts will stretch and shrink slightly, making it possible to remove them. Fitting It becomes a match.

[0034] 8B is similar to A described above, but a notch (8b5) is provided along the innermost side of the groove (8b3) of the receiving part (8b1) that extends beyond the groove width. When the groove (8b4) of the fitting part (8b2) is fitted into the groove (8b3) of the receiving part (8b1), the peripheral wall of the groove is pressed, as in A, and pressure is applied as shown by the arrow in the right figure, but the presence of the notch (8b5) allows the shape and width of the groove to be more flexible in response to the pressure than the groove (8a3) of A. This notch (8b5) is only an example, and it may be provided in the groove of the mating part, or when the protruding claw is large, the notch may be provided in the claw receiving hole, or as shown in FIG. 2, it may be possible to change the size of the mating part or to deform the part by bending or twisting. Fitting By adding cuts to the grooves and holes in anticipation of places where load will be applied when the parts are joined together, flexibility in responding to pressure is increased. Fitting It is a combination.

[0035] FIG. 8C illustrates a state in which a receiving part (8c1) has a groove (8c3) of a different shape that is fitted into a groove (8c4) of a fitting part (8c2) of the same shape as before. The width of the groove (8c3) is not constant, but a narrow portion (8c5) protruding in an arc shape is provided in the middle, and the fitting part (8c2) is inserted there. Fitting When mated, the narrow portion (8c5) tightly pinches the thickness of the fitting part (8c2), and in this case the thickness of the fitting part (8c2) is pressed and pressure is applied as shown by the arrows in the right diagram. The thickness of the EVA sheet varies, and even if the thickness of the fitting part (8c2) is thin, rather than the thickness that presses the groove wall as in A and B of Figure 8, a narrow part (8c5) is provided in the groove to create a pressing range, and even if the material is thin and cannot be clamped in a straight groove, pressing can be applied partially by providing a narrow part in the groove. Fitting This is a combined method.

[0036] FIG. 9D illustrates a state in which a protrusion is provided in a groove in the soft member. A middle claw (9d5) protrudes from one side of the groove wall in the middle of the groove (9d3) provided in the receiving part (9d1), and a claw receiving hole (9d4) is provided in the fitting part (9d2). When the fitting part (9d2) is fitted into the groove (9d3), the end face of the fitting part (9d2) pushes and bends the middle claw (9d5) and passes through, after which the middle claw (9d5) fits into the claw receiving hole (9d4). Fitting In this case, the groove (9d3) needs a space of the groove width beyond the middle claw (9d5), and the space needs to be longer than the length from the end face of the fitting part (9d2) to the claw receiving hole (9d4), and the size of the claw receiving hole (9d4) needs to be larger than the depth of the middle claw (9d5). this Fitting The fitting method is limited to cases where the receiving part (9d1) is made of a soft material, but when the end face of the fitting part (9d2) pushes and bends the middle claw (9d5) to fit in further, the soft claw returns to its original shape and fits into the claw receiving hole (9d4), and when the fitting part (9d2) is pulled strongly, the middle claw (9d5) is pulled and bent in the opposite direction and comes out of the claw receiving hole (9d4). Fitting In this case, the fitting part (9d2) may be made of a soft material as long as it has a suitable hardness, or it may be made of a hard material. Fitting It is possible to combine them.

[0037] FIG. 9E shows the claw structure described in FIG. 7D and E. Fitting However, it is not possible to make a deep groove as shown in Figure 7. Fitting This method can be used in any location. When the fitting depth between the receiving part (9e1) and the fitting part (9e2) is not sufficient, FittingIn this example, the receiving part (9e1) has a claw receiving hole (9e3) a little away from the end face, and the fitting part (9e2) has an end claw (9e5) and a groove (9e4) on the end face. To fit the fitting part (9e2) to the receiving part (9e1), the base of the end claw (9e5) is temporarily bent and opened so that the end claw (9e5) fits into the claw receiving hole (9e3) over the end face of the receiving part (9e1). Fitting In this case, the receiving part (9e1) can be made of a hard material without any problem, and if the fitting part (9e2) is made of a soft material, there is no need for adhesion even if the fitting depth is short as shown in the figure. Fitting This makes it possible to combine

[0038] In Figure 9, F is the case where the receiving part (9f1) is a soft material and the fitting part (9f2) is a hard material. Although it is difficult to understand from the figure, please assume that the fitting part (9f2) in this case is fixed or has some kind of restriction that makes it unable to move. The fitting part (9f2) has a convex claw (9f5), and if it is made of a soft material, the base can be temporarily bent, but if it is made of a hard material, it cannot be deformed. Therefore, if the receiving part (9f1) is made of a soft material, it can be deformed, and if there is a notch on the end face from the claw receiving hole (9f3) as shown in the figure, the periphery of the claw receiving hole (9f3) can be temporarily bent up and down or forward as shown by the arrow in the figure to receive the convex claw (9f5). Fitting Contrary to appearance, the fitting part is not a claw, but a notch is made in the claw receiving hole and it is temporarily opened to insert the fitting part into the hole. In Figure 6, when assembling the abdominal rib (6h) of a dinosaur, the notch in the rib (6f) is opened and the core bone (6g) is received into the hole. Fitting The situation is similar when In addition, even if there is no cut from the claw receiving hole (9f3) to the end face, the convex claw (9f5) can be received into the hole by temporarily bending the periphery of the claw receiving hole (9f3) (the end face side in front of the hole in the figure) in the direction of the up and down arrows due to the softness of the soft material. Fitting It is possible to combine

[0039] Here, Fitting The basic concept of the joint jaws is that multiple parts are FittingWhen parts are assembled together to make an assembly, each part is provided with a connecting part, which has a convex protrusion that, when mated with another part, Fitting When the protrusion gets caught on the mating part in any of the following ways in the thickness direction of the mating parts: fitting into the mating hole and retaining (catch) the protrusion fits into the mating groove and retains, or the protrusion is pressed against the mating surface and retains, and the parts can be connected to each other, the convex protrusion at this time is the claw portion (5) referred to in this application, and the mating hole, groove, and surface into which the claw portion catches are the claw receiving portion (6). In other words, the nails Fitting I have mentioned various things about the joint, but the joint is short enough that the end claw (9e5) fits into the claw receiving hole (9e3). Fitting From the combination, the depth is deep, as in D and E in Figure 7. Fitting It is also possible to create a structure in which a middle claw (9d5) is provided in the groove as shown in FIG. 9D, so that the protrusion can be caught in the claw receiving hole (9d4) of the mating member. The claw and hole do not always need to come as a set. As described with the bent claw (3a4) in Figure 3, the shape that receives the claw is not a hole, but a concave groove cut into the end face, such as in the upper plate (3b) or lower plate (3c), can also be a claw receiving portion (6) as the claw can be retained in the concave groove. As long as there is a structure in which the protrusion of the claw can be caught, even if it is caught on the end face of the mating member, that end face is also a claw receiving portion (6). Regarding the claws, the basic shape of the claw portion (5) is an L-shaped claw that protrudes in only one place on the end surface, such as the bent claw (3a4) in Figure 2 and the end claw (9e5) at E in Figure 9. There are also claws that fit almost entirely into a hole, such as the convex claw (3a6) in Figure 4, and a middle claw (9d5) at D in Figure 9 that protrudes from a groove or end of a component in the middle of one side. The claw portions (5) in D and E of FIG. 7 and the end claw (9e5) in E of FIG. 9 are claws that grip and pierce the thickness of the mating member. Slightly different shapes, such as the large spine (6c) and small spine (6d) in Figure 6 and the F claw receiving hole (9f3) in Figure 9, which have a notch that extends from the end face to the hole, are also claws because the base is bent and the convex protrusion is fitted into the mating component. In this way, temporary bending and opening FittingThe shape of the mating parts can be realized in various ways, but regardless of the names of each shape, the mating structure (1) of the soft mating structure that is mated using the soft material of the present application has a connection part (4) provided on multiple parts (2) cut out from a material (2), which is mainly composed of a claw part (5) and a claw receiver part (6) as well as a mating groove part (7) that is common in wooden assembly models.

[0040] Figure 10 shows the structure components divided into main body and soft members. Fitting This is a diagram of the mating portion, and shows that the main body portion and the mating portion are first fixed together and integrated, and then the structure is assembled by mating them at the mating portion. Here, the main body (9) is assumed to be a building material such as a board or plasterboard, and soft materials are used at key points. Fitting The joint part (8) is fixed and then Fitting The joint parts Fitting By combining them, structures are assembled. Fitting The required number of connection parts (4) are allocated to the required surfaces of each of the joining parts (8), so that the connection parts (4) of the soft material can be Fitting By simply connecting the components together, it becomes possible to assemble and disassemble the structures envisioned. The method of fastening the main body part (9) and the fitting part (8) may be prepared in the same way as common building materials such as nails and screws, but if the fastening method is, for example, adhesive bonding, the main body part (9) can be assembled without using any nails or screws, and no tools are required and no noise is required. Fitting It is possible to provide a building material which can be assembled by fitting the joint parts (8) together and which can be easily disassembled. In this way, by effectively using the mating parts (8) according to the application, it has the potential to be used for new purposes and fields, such as construction at event venues with a fixed period of use or at sites where noise cannot be made, construction in environments without electricity or tools, construction materials in space, at sea or remote areas where lightweight or compact building materials are desired, and construction materials that can be assembled by ordinary people with no construction knowledge. [Industrial Applicability]

[0041] As described above, when a soft member is used as in the present application, FittingIn this case, even if there is variation in thickness of the EVA sheet, which is difficult to achieve thickness accuracy, the components can be bonded together by the changes and deformations of the soft materials caused by bending, twisting, pressing, etc. Fitting The connection parts can be flexibly adjusted to suit the thickness of the sheet, which contributes to the SDGs by reducing waste and reducing landfill. It is possible to create assembly models with new shapes and structures that are not possible with wooden assembly products, to manufacture assembly products that are easy to assemble and disassemble without the need for glue, and to provide light and soft assembly models that are safe for children. Furthermore, it is possible to provide assemblies that combine parts made of different materials, namely soft materials and hard materials. Fitting If it becomes possible to use these joints as parts and combine them with hard materials such as wood to assemble large structures, it will be possible to assemble the main body parts and soft materials prepared on site, such as in the mountains, on the sea, or in space. Fitting By combining joint parts, this application proposes a useful technology that can help reduce the number of workers and workload in the construction industry and can be used in any environment, even under limited conditions. [Explanation of symbols]

[0042] 1 Fitting combination structure 2. Materials 3 Parts 4 Connection 5 Claws 6 Claw receiving part 7 Receiving groove for fitting 8 Fitting joint part 9 Main body parts

Claims

1. At least one of the members that join multiple plate-shaped parts is made of a soft material, and one or both of the members are provided with a connection portion for joining, and the connection portion has a soft joining structure that can join the members by changing the internal dimensions of the members by either pressing against a wall or expanding and contracting, and can also be disassembled after fitting.

2. 2. The soft fitting structure according to claim 1, wherein when the connection portion of the members is fitted or disassembled, the members are fitted or disassembled by deforming the shape of the connection portion by either bending or twisting the soft member.

3. Furthermore, when the member is fitted to each of the multiple connection portions, the soft member is deformed by either bending or twisting to fit into each of the connection portions.

4. The wall pressing at the connection portion is a soft fitting structure described in any one of claims 1 to 3, in which a fitting groove portion is provided in the member, and the wall surface of the fitting groove portion is pressed by the mating member to be fitted into the member, thereby deforming the soft member and fitting it.

5. The expansion and contraction at the connection portion refers to a soft fitting structure described in any one of claims 1 to 3, in which a fitting groove portion is provided in the member, and when there is an error in the positional dimensions of the mating member to be fitted and the fitting groove portion, the soft member is expanded and contracted to fit together.

6. A soft fitting structure as described in any one of claims 1 to 3, wherein the fitting groove portion provided in the member is provided on the end face of the member, the groove width at the back of the groove is narrower than the groove width on the end face side, and the fitting intersection of the two members is a transition fit.

7. A soft fitting structure as described in any one of claims 1 to 3, wherein when the fitting groove portion provided in the member is made of the soft member, a notch wider than the groove width is provided in the width direction of the groove at the end of the innermost part of the fitting groove portion, making it easier to deform the wall of the fitting groove portion.

8. A soft mating structure described in any one of claims 4 to 7, wherein a convex claw portion is provided on the connection portion of the member, a claw receiving portion is provided on the member with which the claw portion is mated, and the convex claw portion is mated with the claw receiving portion.

9. 9. The soft fitting structure according to claim 8, wherein when the claw portion is made of the soft material, a base of the claw portion of the soft material is bent to fit the convex claw portion into the claw receiving portion.

10. 9. The soft fitting structure according to claim 8, wherein when the member of the claw receiving portion is the soft member, the periphery of the concave claw receiving portion of the soft member is bent to fit onto the claw.

11. The soft fitting structure according to claim 8 , wherein the claw receiving portion is provided in a hole shape not in contact with an end portion of the soft member and is fitted therein.

12. A soft fitting structure as described in any one of claims 4 to 11, in which, when one or more of the components are fitted together using one or more of the fitting groove portions, the soft member is curved by either bending or twisting, so that the fitted components are not in close contact with each other and a space is provided for inserting another component.

13. 4. The soft fitting structure according to claim 1, wherein a plurality of slit grooves are arranged in the member, and the member in which the slit grooves are arranged is curved to create a space into which another member can be inserted.

14. The soft fitting structure according to any one of claims 1 to 3, wherein the members that fit together at the connection portion either involve stacking another member to maintain thickness or sandwiching a hard member.

15. 15. The soft fitting structure according to claim 14, wherein the two members are overlapped and fitted together, and another member is sandwiched between the two members.

16. 4. The soft fitting structure according to claim 1, wherein a plurality of said plate-like parts are arranged in said sheet of soft material, and when assembled, these plate-like parts are cut out and assembled to form a toy or ornament.

17. 4. A structure using a fitting portion of a soft fitting structure according to any one of claims 1 to 3, which is composed of a plurality of main body parts and fitting portions of soft members, the main body parts and the fitting portions being fixed together to form a single structural member, and the fitting portions of the structural members being fitted together to assemble the structure.

Images