Connection structure of plate base body

Abstract

A connecting structure of plate base bodies has: a plurality of plate base bodies, each comprising a core element formed in a plate-like manner using a composite material and having a plurality of convex portions on at least one surface, and side plates arranged to sandwich the core element from both sides in the height direction of the convex portions using a composite material, and a connecting element that connects the plate base bodies to each other by being inserted into spatial zones in the plate base bodies that are surrounded by the convex portions and the side plates.

Description

Technical field of the invention

[0001] The present disclosure relates to a connecting structure of plate base bodies. Technical background of the invention

[0002] Panel bodies, such as rigid sandwich panels, are used in vehicle bodies, for example, automobiles, trains, and other mobility products (see, for example, Patent Literature 1). List of cited documentsPatent literature

[0003] Patent Literature 1: Japanese Patent Application Laid-Open No. 2003-53887 Brief overviewTechnical problem

[0004] The respective plate bodies, as described above, are designed such that a core element is arranged between two side plates, and the side plates are connected to the core element. When a composite material is used for the core element and the side plates in such a plate body, the plate bodies must be stably connected in the surface direction.

[0005] The present disclosure has been made in view of the foregoing, and it is an object of the present disclosure to provide a connection structure of plate base bodies that can ensure stable connection. Solution to the problem

[0006] A connecting structure of plate base bodies according to the present disclosure comprises: a plurality of plate base bodies, each having a core member formed in a plate shape using a composite material and having a plurality of convex portions on at least one surface, and side plates arranged to sandwich the core member from both sides in the height direction of the convex portions using a composite material, and a connecting member that connects the plate base bodies to each other by being inserted into the plate base bodies in space zones surrounded by the convex portions and the side plates. Advantageous effects of the invention

[0007] According to the present disclosure, the plate base bodies can be stably connected to each other. Short character description

[0008] Fig. 1 is a diagram illustrating an example of a connection structure according to the present embodiment. Fig. Figure 2A is a diagram showing an embodiment along section AA in Fig. 1 represents. Fig. 2B is a partially enlarged view of a spatial zone of a plate body as in Fig. 2A. Fig. 3A is a cross-sectional view showing another example of a state in which a connecting member is inserted into a space zone of the plate body. Fig. 3B is a partially enlarged view of the space zone of the plate body as shown in Fig. 3A. Fig. 4A is a cross-sectional view showing another example of a state in which a connecting member is inserted into the space zone of the plate body. Fig. 4B is a partially enlarged view of the space zone of the plate body as shown in Fig. 4A. Fig. 5A is a cross-sectional view showing another example of a state in which a connecting member is inserted into the space zone of the plate body. Fig. 5B is a partially enlarged view of the space zone of the plate body as shown in Fig. 5A. Fig. 6 is a cross-sectional view showing another example of a state in which a connecting member is inserted into the space zone of the plate base body. Fig. Figure 7A is a diagram illustrating another embodiment of the connecting element. Fig. Figure 7B is a diagram showing a state when considering the Fig. 7A in the direction of arrow E. Fig. Figure 8 is a diagram showing another embodiment of the connecting element. Fig. Figure 9 is a diagram illustrating yet another embodiment of the connecting element. Fig. 10A is a diagram illustrating yet another embodiment of the connecting element. Fig. 10B is a diagram showing a state when viewing a Fig. 10A in the direction of arrow I. Fig. 11A is a diagram illustrating yet another embodiment of the connecting element. Fig. 11B is a diagram illustrating yet another embodiment of the connecting element. Fig. 12 is a diagram illustrating yet another embodiment of the connecting element. Fig. 13 is a diagram illustrating a connection structure according to another example. Fig. 14 is a diagram illustrating an example of a method in which plate bodies are joined together by a connecting member according to another example. Fig. 15A is a diagram illustrating a connection structure according to another example. Fig. 15B is a diagram showing a state when considering the Fig. 15A in the direction of arrow R. Description of the embodiments

[0009] An embodiment of a connecting structure of plate base bodies according to the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the invention is not limited to the embodiment. Furthermore, the components of the following embodiment also include those that can be easily replaced by a person skilled in the art or those that are substantially similar to one another.

[0010] Fig. 1 is a diagram illustrating an example of a connection structure 100 according to the present embodiment. Fig. The connecting structure 100 shown in Figure 1 comprises a plurality of plate base bodies 10 and a connecting element 20. For example, the plate base bodies 10 are each rectangular in shape and are connected in a state in which side edges 11 face each other. A plurality of connecting elements 20 are arranged in the side edge direction D of the side edge 11.

[0011] Fig. Figure 2A is a diagram showing an embodiment along section AA in Fig. 1 represents. Fig. 2A is a cross-sectional view showing an example of a connecting portion of the plate base bodies 10. In the Fig. In the example shown in Figure 2A, the connecting element 20 is designed as a cylinder. As shown in Fig. 2A, the plate body 10 comprises a core element 12, side plates 14 and a connecting part 16.

[0012] The core element 12 and the side plate 14 are formed using a composite material. The composite material is preferably a thermoplastic fiber-reinforced plastic (FRP) containing reinforcing fibers. For example, the fiber-reinforced plastics are preferably glass fiber-reinforced plastic (GFRP) and carbon fiber-reinforced plastic (CFRP). The fiber-reinforced plastics are not limited to these.

[0013] The core element 12 is wave-shaped. The core element 12 has a plurality of convex portions 18 on both surfaces. The core element 12 has a concave portion at a location corresponding to the convex portion 18 on a surface opposite the protrusion direction of the convex portion 18. Such a core element 12 can also be referred to as a wave-shaped shape.

[0014] The side plates 14 are arranged to sandwich the core element 12 from both sides in the height direction of the convex portions 18. The side plate 14 is arranged on the convex portion 18 of the core element 12. The side plate 14 is formed using a composite material. The composite material is preferably thermoplastic fiber-reinforced plastics (FRP) containing reinforcing fibers. For example, the fiber-reinforced plastics are preferably glass fiber-reinforced plastics (GFRP) and carbon fiber-reinforced plastics (CFRP). The fiber-reinforced plastics are not limited to these. The core element 12 and the side plate 14 can be made of the same material or different materials.

[0015] The connecting part 16 connects the core element 12 and the side plate 14. The connecting part 16 is formed between an upper portion of the convex portion 18 and the side plate 14. For example, the connecting part 16 is optionally formed between an upper portion of the convex portions 18 and the side plate 14. The connecting part 16 is formed, for example, according to rigidity and impact resistance required for the plate main body 10. The connecting part 16 can be formed by heating and melting the connection point between the upper portion of the convex portion 18 and the side plate 14 and then cooling the side plate 14. For example, a heating source such as a heater and a heating wire, ultrasonic vibration, electromagnetic induction using a magnetic field, or a laser can be used for heating.However, the method is not limited to this. This means that the connecting part 16 can also be designed such that the convex portion 18 and the side plate 14 are connected to each other by means of an adhesive (not shown).

[0016] In the plate base body 10, a spatial zone K is formed in an area surrounded by the core element 12 and the side plate 14. In the plate base body 10, the convex portion 18 is formed on the core element 12 at the side edge 11 to be connected. Therefore, in the plate base body 10, the spatial zone K is formed at the side edge 11.

[0017] The connecting element 20 is inserted into the spatial zone K on the side edge 11 of the plate base body 10. The connecting element 20 connects the plate base bodies 10 to one another. The connecting element 20 is, for example, rod-shaped and extends in one direction. One end region of the connecting element 20 is inserted into the spatial zone K of one of the plate base bodies 10, and the other end region is inserted into the spatial zone K of another plate base body 10.

[0018] In the present embodiment, the hardness of the core member 12 and the side plate 14 can be higher than the hardness of the connecting member 20 or lower than the hardness of the connecting member 20. When the hardness of the core member 12 and the side plate 14 is higher than the hardness of the connecting member 20, the core member 12 and the side plate 14 can stably support the connecting member 20. When the hardness of the core member 12 and the side plate 14 is lower than the hardness of the connecting member 20, the force exerted on the core member 12 and the side plate 14 via the connecting member 20 can be flexibly absorbed.

[0019] The connecting element 20 is supported by the convex portion 18 and the side plate 14 in the space zone K. Furthermore, in the space zone K, the connecting element 20 is supported by the convex portion 18 such that the connecting element 20 is sandwiched from both sides in the side edge direction D of the side edge 11. In this way, the connecting element 20 can be supported, for example, by the convex portion 18 and the side plate 14 at at least three points. The area in which the connecting element 20 is supported is not limited to the points (linear support) in the Fig. 2A, but can also be determined by the lines (areal support) in the example shown in Fig. The example shown in Figure 2A can be shown.

[0020] Fig. 2B is a partially enlarged view of the space zone K of the plate body 10. When in Fig. 2B, a distance between the convex portions is 18 p, a height of the convex portion is 18 h, and a thickness of the core member is 12 t, a radius r of the connecting member 20 is defined to satisfy the following: r0=php+214p2+h2+ε(0≤ε≤t)

[0021] However, a range of the value ε in formula 1 can also be -t ≤ ε ≤ t. In this case, the connecting element 20 is arranged in the spatial zone K with a gap between the convex portion 18 and the side plate 14.

[0022] The Fig. 3A and Fig. 4A are cross-sectional views each showing another example of a state in which a connecting element is inserted into the space zone K of the plate base body 10. The Fig. 3B and Fig. 4B are each a partially enlarged view of the spatial zone K of the plate base body 10 as shown in the Fig. 3A and Fig. 4A. In the Fig. 3A and Fig. In the examples shown in Figure 4A, connecting elements 20A and 20B are each formed in the shape of a triangular prism, for example. The corners of the connecting elements 20A and 20B can also have a round shape in a cross-sectional view. In the space zone K, the connecting elements 20A and 20B are supported by the convex portion 18 and the side plate 14. Furthermore, in the space zone K, the connecting elements 20A and 20B are supported by the convex portion 18 such that the connecting elements 20A and 20B are sandwiched from both sides in the side edge direction D of the side edge 11. The connecting elements 20A and 20B are supported by the convex portion 18 and the side plate 14 at at least three points.

[0023] This means the following: If in Fig. 3B, a distance between the convex portions is 18 p, a height of the convex portion is 18 h, and a thickness of the core member is 12 t, a height x of the connecting member 20A and a length y of the lower surface are defined to satisfy the following: y=(h−x)ph+ε (0 <x<h,−2t<ε<2t)

[0024] If further in Fig. 4B, a distance between the convex portions is 18 p, a height of the convex portion is 18 h, and a thickness of the core member is 12 t, a cross-sectional area S of the connecting member 20B is set to be smaller than S as indicated in: S=12p(h−t) and is larger than the cross-sectional area of ​​an isosceles triangle as given in formula 2.

[0025] Fig. 5A is a cross-sectional view showing an example of a state in which a connecting member 20C is inserted into the space zone K of the plate main body 10. Fig. 5B is a partially enlarged view of the space zone K of the plate body 10 as in Fig. 5A. In the Fig. In the example shown in Figure 5A, the connecting element 20C is embodied, for example, in the shape of a rectangular parallelepiped. In the spatial zone K, the connecting element 20C is supported by the convex portion 18 and the side plate 14. Furthermore, in the spatial zone K, the connecting element 20C is supported by the convex portion 18 such that the connecting element 20C is sandwiched from both sides in the side edge direction D of the side edge 11. In this way, the connecting element 20C is supported by the convex portion 18 and the side plate 14 at at least three points.

[0026] This means the following: If in Fig. 5B, a distance between the convex portions is 18 p, a height of the convex portion is 18 h, and a thickness of the core member is 12 t, a height x of the connecting member 20C and a length y of the lower surface are defined to satisfy the following: y=(h−x)ph+ε (0 <x<h,−2t<ε<2t)

[0027] Fig. Fig. 6 is a cross-sectional view showing another example of a state in which a connecting element is inserted into the space zone K of the plate body 10. As shown in Fig. As shown in Figure 6, the connecting element 20 can adhere to the convex portion 18 and the side plate 14 by means of an adhesive 30. With such a configuration, the connecting element 20 can be stably fixed to the plate base body 10. Furthermore, in this case, the adhesive 30 can be, for example, a thermoplastic resin. With such a configuration, the adhesive strength can be reduced by applying heat to the adhesive 30. Thus, it is possible, for example, to easily separate the connecting structure 100 of the plate base body 10 during disassembly.

[0028] Fig. Figure 7A is a diagram illustrating another embodiment of the connecting element. Fig. Figure 7B is a diagram showing a state when viewing a Fig. 7A in the direction of arrow E. As shown in the Fig. 7A and Fig. 7B, each respective connecting element 20E may be formed using a linear element 21 formed of metal and a mixed material 22 covering the linear element 21. The mixed material 22 may be, for example, a mixed component of reinforcing fibers and thermoplastic resin fibers. The connecting element 20E may adhere to the convex portion 18 and the side plate 14, for example, as a result of applying heat to the linear element 21 and then melting and curing the thermoplastic resin. Adhesive strength may also be reduced by applying heat to the linear element 21. For example, a stopper element 23 may be provided at both ends of the mixed material 22 to prevent leakage of molten thermoplastic resin.The stopper element 23 seals the connecting element 20E between the convex portion 18 and the side plate 14. With such a configuration, it is easy to switch between adhesion and separation of the connecting element 20E and the convex portion 18 and the side plate 14.

[0029] Fig. Figure 8 is a diagram illustrating yet another embodiment of the connecting element. As shown in Fig. As shown in Figure 8, a connecting element 20F can be formed using a foaming agent. In this case, the connecting element 20F is formed by inserting a rod-shaped, yet unfoamed foaming agent 25 into the space zone K of the plate base body 10, wherein the volume of the foaming agent 25 is increased by allowing the foaming agent 25 to form a foam immediately before the insertion of the foaming agent 25 or after the insertion of the foaming agent 25. For example, various materials, such as a material that forms a foam with water and a material that forms a foam with gas, can be used as the foaming agent.

[0030] Fig. Figure 9 is a diagram illustrating yet another embodiment of the connecting element. As shown in Fig. As shown in Figure 9, the connecting element 20 inserted into at least one plate base body 10G may be formed using a magnetic element 20G. In this case, a separate magnetic force generating element 20H capable of generating a magnetic force due to which the magnetic element 20G and the magnetic force generating element 20H attract each other may be inserted into another plate base body 10H as the connecting element 20. Such a magnetic force generating element 20H comprises, for example, a magnetic body element, a magnetic element, or the like. The magnetic force generating element 20H may also be a magnetic powder. For example, the magnetic element 20G and the magnetic force generating element 20H may be fixed to the plate base bodies 10G and 10H with an adhesive or the like.

[0031] The Fig. 10A and Fig. 11A are diagrams each illustrating a further embodiment of the connecting element. As in Fig. 10A, it is also possible for a plurality of connecting elements 20I to be coupled by means of a coupling element 40 along the side edge direction D of the side edge 11 of the plate base body 10.

[0032] Fig. 10B is a diagram showing a state when considering the Fig. 10A in the direction of arrow I. In the Fig. In the example shown in Figure 10A, when viewed in the side edge direction D of the side edge 11, the connecting element 20I inserted into one of the plate base bodies 10 to be connected and the connecting element 20I inserted into the further plate base body 10 extend from the coupling element 40 in opposite directions.

[0033] The Fig. 11A and Fig. 11B are diagrams each showing a further embodiment of the connecting element when viewed from the direction of arrow I in Fig. 10A. In the direction shown in Fig. In the example shown in Figure 11A, a connecting element 20J inserted into one of the plate base bodies 10 to be connected and a connecting element 20J inserted into the further plate base body 10 extend at an angle of 90 degrees relative to the coupling element 40 when viewed in the side edge direction D of the side edge 11. In this way, a plurality of connecting elements 20J can be arranged such that, when viewed in the side edge direction D of the side edge 11, each respective connecting element 20J extends from the coupling element 40 in a direction that is different from the respective opposite directions. With this configuration, it is possible to set the angle between the plate base bodies 10 to be connected to a predetermined angle. In the Fig. The example shown in Figure 11A shows a configuration with two connecting elements 20J. However, this is not a limitation. As exemplified in Fig. 11B, a single coupling element 40 may comprise three or more (in the case of Fig. 11B, three connecting elements 20J extend. In this case, it is possible to connect three or more plate base bodies 10.

[0034] This should be understood in such a way that, in the exemplary embodiment described above, a configuration was described by way of example in which a respective core element 14 is formed in a wave-shaped manner. However, this does not constitute a limitation. The core element 14 is not limited to the wave-shaped configuration, as long as the core element 14 is formed in a plate-like manner and has a plurality of convex portions on at least one of its surfaces.

[0035] Fig. Figure 12 is a diagram illustrating another embodiment of the connecting element. As shown in Fig. 12, it is also possible for a plurality of connecting elements 20K to be coupled by means of the coupling element 40 via a hook part 26 along the side edge direction D of the side edge 11 of the plate base body 10. The hook part 26 is rotatable relative to the coupling element 40. In this embodiment, the angle between the plate base bodies 10 can be adjusted while the plate base bodies 10 are connected to one another.

[0036] Fig. 13 is a diagram illustrating a connection structure 200 according to another example. As in Fig. 13, the connecting structure 200 comprises a plurality of plate base bodies 110 to be connected and a connecting element 120. In the plate base body 110, a core element 112 is formed in a wave-shaped manner, so that the spatial zone K, which is surrounded by a convex partial region 118 and a side plate 114, extends along the side edge direction D through the plate base body 110.

[0037] The connecting element 120 is inserted into the plate base bodies 110 such that it extends through the spatial zones K. The connecting element 120 comprises a first insertion region 121, which is inserted in one direction into one of the plate base bodies 110 to be connected, a second insertion region 122, which is inserted in one direction into the other plate base body 110, and a connecting region 123, which connects the first insertion region 121 and the second insertion region 122. The first insertion region 121 and the second insertion region 122 are rotatable relative to each other about the central axis parallel to the one direction relative to the plate base body 110. Therefore, the angle between the plate base bodies 110, while they are connected by means of the connecting element 120, is adjustable around the connecting element 120. This is to be understood as meaning that in the Fig. 13, after setting the angle between the plate base bodies 110 to a predetermined angle, the set angle can be fixed by attaching a cap element 124.

[0038] In the connecting element 120, both the first insertion portion 121 and the second insertion portion 122 and the connecting portion 123 may be divided in one direction. Fig. Fig. 14 is a diagram illustrating an example of a method for connecting the plate base bodies 110 to each other by means of the connecting member 120 according to another embodiment. In this embodiment, as shown in Fig. 14, the connecting element 120 is first split in one direction to connect the plate base bodies 110 to each other by means of the connecting element 120. Then, for a split piece 120A, a first insertion portion 121A and a second insertion portion 122A are inserted from one direction of the plate base body 110, and for another split piece 120B, the first insertion portion 121A and the second insertion portion 122A are inserted from the other direction of the plate base body 110. Subsequently, the first insertion portion 121A, the second insertion portion 122A, and a connecting portion 123A of the split piece 120A, and a first insertion portion 121B, a second insertion portion 122B, and a connecting portion 123B of the split piece 120B are coupled in engagement portions 121C, 122C, and 123C, respectively.

[0039] Fig. 15A is a diagram illustrating a connection structure 300 according to another example. Fig. 15B is a diagram showing a state when viewing a connecting element 220 as shown in Fig. 15A, in the direction of arrow R. As shown in the Fig. 15A and Fig. 15B, the connecting structure 300 includes a plurality of plate base bodies 210 to be connected and the connecting element 220. In the plate base body 210, a core element 212 is formed in a wave shape so that the space zone K, which is surrounded by a convex portion 218 and a side plate 214, extends in one direction through the plate base body 210. The plate base bodies 210 further include a plurality of rectangular notch portions 230 in a region where the connecting element 220 is inserted. In the plate base bodies 210, a plurality of rectangular portions 231 are cut out and formed by the notch portions 230.The plate base bodies 210 are arranged such that a respective rectangular portion 231 of the rectangular portions 231 of one of the plate base bodies 210 and a respective one of the notch portions 230 of another plate base body 210 are fitted to one another in one direction.

[0040] The connecting element 220 is arranged such that it extends through the rectangular portion 231 of each respective plate base body 210. The connecting element 220 is relatively rotatable about the central axis parallel to the one direction relative to each respective rectangular portion 231 relative to the central axis. Therefore, the angle between the plate base bodies 110 is adjustable about the connecting element 220 while the plate base bodies 110 are connected by means of the connecting element 220. This is to be understood as meaning that in the Fig.14, after setting the angle between the plate base bodies 210 to a predetermined angle, the set angle can be fixed by attaching a cap element 224.

[0041] In the embodiment described above, a case was described as an example in which the shape of the portion of the connecting element to be inserted into the space zone K is columnar. However, this is not a limitation. The shape of the portion of the connecting element to be inserted into the space zone K can also be conical. In this case, the connecting element can be conically shaped so that a front end portion to be inserted into the space zone K is tapered.

[0042] As described above, a connecting structure of the plate base bodies according to a first aspect of the present disclosure includes the plate base bodies 10, each having the core element 12 which is plate-shaped using a composite material and has the convex portions 18 on at least one surface, the connecting structure further includes the side plates 14 which are arranged to sandwich the core element 12 from both sides in the height direction of the convex portions 18 using a composite material, and the connecting structure includes the connecting element 20 which connects the plate base bodies 10 to each other by being inserted into the space zones K surrounded by the convex portions 18 and the side plates 14 in the plate base bodies 10.

[0043] In this embodiment, the plate base bodies 10 are connected to one another by inserting the connecting element 20 on the side edge 11 of the plate base bodies 10 into the space zone K surrounded by the convex portion 18 and the side plate 14. Thus, the plate base bodies 10 can be stably connected to one another.

[0044] Now, to a joining structure of the plate main bodies according to a second aspect of the present disclosure: In the joining structure of the plate main bodies according to the first aspect, in the plate main bodies 10, the convex portions 18 are formed on the side edges 11; the side edges 11 on which the convex portions 18 are formed are arranged to face each other, and each respective convex portion 18 is aligned in the side edge direction D, that is, in a direction in which the facing side edges 11 extend, and the joining member 20 is supported by the convex portions 18 and the side plates 14 on the facing side edges 11 of the respective plate main bodies 10 and is held by the convex portions 18 such that the joining member 20 is sandwiched from both sides in the side edge direction D, that is, in a direction in which the side edges 11 extend.

[0045] In this embodiment, the plate base bodies 10 are connected by the connecting element 20 in a state in which the plate base bodies 10 are arranged such that the convex portions 18 formed on the side edges 11 face each other. Thus, the plate base bodies 10 can be easily connected by means of the connecting element 20.

[0046] Now to a connecting structure of the plate base bodies according to a third aspect of the present disclosure: In the connecting structure of the plate base bodies according to the second aspect, the connecting element 20 is supported by the convex portion 18 and the side plate 14 at least three points.

[0047] With such a configuration, the convex portion 18 and the side plate 14 can hold the connecting element 20 stable.

[0048] Now, to a connecting structure of the plate main bodies according to a fourth aspect of the present disclosure: In the connecting structure of the plate main bodies according to the second aspect, the connecting element 20 adheres to the convex portion 18 and the side plate 14 by means of the adhesive 30.

[0049] With such a configuration, the convex portion 18 and the side plate 14 can hold the connecting element 20 stably by means of the adhesive 30.

[0050] Now, to a joining structure of the plate base bodies according to a fifth aspect of the present disclosure: In the joining structure of the plate base bodies according to the fourth aspect, the adhesive 30 is a thermoplastic resin.

[0051] With such a configuration, the adhesive strength of the connecting element 20 can be reduced by applying heat to the adhesive 30. Thus, the plate base bodies 10 can be easily connected and separated.

[0052] Now, a joining structure of the plate base bodies according to a sixth aspect of the present disclosure: In the joining structure of the plate base bodies according to the second aspect, the joining member 20 is formed using the linear member 21 formed of metal and the mixed material 22 covering the linear member 21.

[0053] With such a configuration, the bonding strength of the connecting element 20 can be reduced by applying heat to the linear element 21 and melting a portion of the mixed material 22. Thus, the plate base bodies 10 can be easily connected and separated.

[0054] Now, to a joining structure of the plate main bodies according to a seventh aspect of the present disclosure, in the joining structure of the plate main bodies according to the second aspect, the joining member 20F is formed using a foaming agent.

[0055] With such a configuration, the space zone K can be easily filled with the connecting element 20F by inserting a foaming agent into the space zone K in advance before foaming, the volume of the foaming agent being increased by allowing the foaming agent to form a foam in this state.

[0056] Now, to a connection structure of the plate bases according to an eighth aspect of the present disclosure: In the connection structure of the plate bases according to the second aspect, the magnetic element 20G is inserted into one of the plate bases 10 as a connection element, and the magnetic force generating element 20H is inserted into the other plate base 10, which generates a magnetic force between the magnetic element 20G and the magnetic force generating element 20H. The one plate base 10 and the other plate base 10 attract each other due to the magnetic force and are thus connected to each other.

[0057] With such a configuration, the plate base bodies 10 can be easily connected by the magnetic force generated between the magnetic element 20G and the magnetic force generating element 20H.

[0058] Now, to a connection structure of the plate main bodies according to a ninth aspect of the present disclosure: In the connection structure of the plate main bodies according to the second aspect, a plurality of connection elements 20I and 20J are coupled by means of the coupling element 40 along the side edge direction D of the side edge 11.

[0059] With such a configuration, the number of components can be reduced because the connecting elements 20I and 20J are coupled by means of the coupling element 40. For example, three or more plate base bodies 10 can also be connected by means of a single coupling element 40, since three or more connecting elements 20 can extend from a single coupling element 40.

[0060] Now, to a connecting structure of the plate base bodies according to a tenth aspect of the present disclosure: In the connecting structure of the plate base bodies according to the ninth aspect, when viewed in the side edge direction D of the side edge 11, the connecting element 20I inserted into one of the plate base bodies 10 and the connecting element 20I inserted into the other plate base body 10 extend in opposite directions to each other.

[0061] In such a configuration, the plate base bodies 10 can be connected to one another in a suitable manner along a plane direction, since - when viewed in the side edge direction D of the side edge 11 - the connecting element 20I inserted into one of the plate base bodies 10 and the connecting element 20I inserted into the further plate base body 10 extend in opposite directions to one another.

[0062] Now, to a connecting structure of the plate main bodies according to an eleventh aspect of the present disclosure: In the connecting structure of the plate main bodies according to the ninth aspect, when viewed in the side edge direction D of the side edge 11, the connecting element 20 inserted into one of the plate main bodies 10 and the connecting element 20 inserted into the other plate main body 10 extend in a direction different from the respective opposite directions.

[0063] In this embodiment, the plate base bodies 10 can be connected to one another at a desired angle since - when viewed in the side edge direction D of the side edge 11 - the connecting element 20 inserted into one of the plate base bodies 10 and the connecting element 20 inserted into the further plate base body 10 each extend in a direction that is different from the respective opposite directions.

[0064] Now, to a connecting structure of the plate main bodies according to a twelfth aspect of the present disclosure: In the connecting structure of the plate main bodies according to the first aspect, the plate main bodies 110 are arranged such that the side edges 111 face each other, wherein each of the core elements 112 is formed in a wave shape such that the space zone K surrounded by the convex portion 118 and the side plate 114 extends through the plate main body 110 in the side edge direction D (which is a direction in which the facing side edges 111 extend), wherein the connecting element 120 is inserted into the plate main bodies 110 so as to extend through the space zones K, and wherein the angle between the plate main bodies 110 is adjustable around the connecting element 120.

[0065] In this embodiment, the angle between the plate base bodies 110 can be adjusted, while the plate base bodies 110 are connected to each other by means of the connecting element 120.

[0066] Now, to a connecting structure of the plate main bodies according to a thirteenth aspect of the present disclosure: In the connecting structure of the plate main bodies according to the twelfth aspect, the connecting member 120 includes the first insertion portion 121 inserted into one of the plate main bodies 110 along the side edge direction D, the second insertion portion 122 inserted into the other plate main body 110 along the side edge direction D, and the connecting portion 123 connecting the first insertion portion 121 and the second insertion portion 122.

[0067] Since the first insertion portion 121, the second insertion portion 122, and the connecting portion 123 are included in this embodiment, it is possible to connect one of the plate base bodies 110 and the other plate base body 110 in a suitable manner so that an angle is adjustable.

[0068] Now, a connecting structure of the plate main bodies according to a fourteenth aspect of the present disclosure: In the connecting structure of the plate main bodies according to the twelfth aspect, the plate main bodies 210 include the rectangular notch portions 230 in a region where the connecting member 220 is inserted spaced apart in the side edge direction D, the rectangular partial portions 231 are formed spaced apart in the side edge direction D by being cut out in the shape of the notch portion 230, and the rectangular partial portion 231 of one of the plate main bodies 210 is arranged to fit into the notch portion 230 of the other plate main body 210.

[0069] In this embodiment, since the connecting element 220 extends through the area where the rectangular partial area 231 of one of the plate base bodies 210 fits into the notch area 230 of the other plate base body 210 in the side edge direction D, the angle can be adjusted in a suitable manner while the plate base bodies 210 are connected to one another by means of the connecting element 220.

[0070] Now, to a connecting structure of the plate base bodies according to a fifteenth aspect of the present disclosure: In the connecting structure of the plate base bodies according to the second aspect, the core element 12 is wave-shaped and has the convex partial regions 18 on both surfaces.

[0071] With this design, the strength of the core element 12 can be ensured.

[0072] Now, to a connection structure of the plate main bodies according to a sixteenth aspect of the present disclosure: In the connection structure of the plate main bodies according to the second aspect, the connection member 20 is cylindrical, and when a distance between the convex portions 18 in the side edge direction is D p, a height of the convex portion 18 is h, and a thickness of the core member 12 is t, a radius r of the connection member 20 is defined to satisfy the following: r0=php+214p2+h2+ε(0≤ε≤t)

[0073] In such a configuration, the cylindrical connecting element 20 can be held in a suitable manner by the convex portion 18 and the side plate 14.

[0074] Now, to a connection structure of the plate main bodies according to a seventeenth aspect of the present disclosure: In the connection structure of the plate main bodies according to the second aspect, the connection member 20A is formed in the shape of a triangular prism, and when a distance between the convex portions 18 in the side edge direction is D p, a height of the convex portion 18 is h, and a thickness of the core member 12 is t, a height x of the connection member 20A and a length y of the lower surface of the connection member 20A are defined to satisfy the following: y=(h−x)ph+ε (0 <x<h,−2t<ε<2t)

[0075] In such a configuration, the connecting element 20A formed in the shape of a triangular prism can be held in a suitable manner by the convex portion 18 and the side plate 14.

[0076] Now, to a connecting structure of the plate base bodies according to an eighteenth aspect of the present disclosure: In the connecting structure of the plate base bodies according to the seventeenth aspect, the cross-sectional area S of the connecting member 20A is defined to be smaller than S as indicated in: S=12p(h−t) and is larger than the cross-sectional area of ​​an isosceles triangle defined by the height x and the length y of the lower surface.

[0077] In such a configuration, the connecting element 20A formed in the shape of a triangular prism can be held in a suitable manner by the convex portion 18 and the side plate 14.

[0078] Now, to a connection structure of the plate main bodies according to a nineteenth aspect of the present disclosure: In the connection structure of the plate main bodies according to the second aspect, the connection member 20B is formed in the shape of a rectangular parallelepiped, and when a distance between the convex portions 18 in the side edge direction D is p, a height of the convex portion 18 is h, and a thickness of the core member 12 is t, a height x of the connection member 20B and a length y of the lower surface of the connection member 20A are defined to satisfy the following: y=(h−x)ph+ε (0 <x<h,−2t<ε<2t)

[0079] With such a configuration, the connecting element 20B formed in the shape of a square column can be suitably held by the convex portion 18 and the side plate 14. List of reference symbols 10, 10G, 10H, 110, 210 plate base body 11 Page margin 12, 112, 212 core element 14, 114, 214 side plate 16 Connecting part 18, 118, 218 convex subarea 20, 20A, 20B, 20C, 20E, 20F, 20I, 20J, 20K, 120, 220 connecting element 20G magnetic element 20H magnetic force generating element 21 linear element 22 Mixed material 23 Stopper element 25 foaming agents 26 Hook part 30 Adhesive 40 coupling element 100, 200, 300 connection structure 120A, 120B split piece 121, 121A, 121B first insertion area 121C, 122C, 123C intervention area 122, 122A, 122B second insertion area 123, 123A, 123B connection area 124, 224 cap element 230 Notch area 231 rectangular section D Page margin direction K spatial zone QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2003-53887

[0003]

Claims

[1] A connecting structure of plate base bodies, comprising: a plurality of plate base bodies, each comprising: a core element which is plate-shaped using a composite material and has a plurality of convex portions on at least one surface, and Side plates arranged to sandwich the core element from both sides in the height direction of the convex portions using a composite material, and a connecting element that connects the plate base bodies to each other by being inserted into spatial zones in the plate base bodies that are surrounded by the convex portions and the side plates. [2] A connecting structure of plate base bodies according to claim 1, wherein in the plate base bodies, the convex portions are formed on side edges, wherein the side edges on which the convex portions are formed are arranged facing each other and wherein each respective convex portion is aligned in the side edge direction, that is to say in a direction in which the mutually facing side edges extend, and the connecting element is mounted by the convex partial areas and the side plates on the mutually facing side edges of the respective plate base bodies and is held by the convex partial areas in such a way that the connecting element is sandwiched from both sides in the side edge direction. [3] The connecting structure of plate base bodies according to claim 2, wherein the connecting element is supported by the convex portion and the side plate at at least three points. [4] The joining structure of plate base bodies according to claim 2, wherein the joining member is adhered to the convex portion and the side plate by means of an adhesive. [5] The joining structure of plate base bodies according to claim 4, wherein the adhesive is a thermoplastic resin. [6] The joining structure of plate base bodies according to claim 2, wherein the joining member is formed using a linear member formed of metal and a mixed material covering the linear member. [7] The joining structure of plate base bodies according to claim 2, wherein the joining member is formed using a foaming agent. [8] Connection structure of plate base bodies according to claim 2, wherein a magnetic element is inserted into one of the plate base bodies as a connecting element, a magnetic force generating element is inserted into the further plate base body, which generates a magnetic force between the magnetic element and the magnetic force generating element, and one plate base body and the other plate base body attract each other due to the magnetic force and are thus connected to each other. [9] The connecting structure of plate base bodies according to claim 2, wherein a plurality of connecting elements are coupled by means of a coupling element along the side edge direction. [10] A connecting structure of plate base bodies according to claim 9, wherein - when viewed in the side edge direction - the connecting element inserted into one of the plate base bodies and the connecting element inserted into the further plate base body extend in opposite directions to each other. [11] The connecting structure of plate base bodies according to claim 9, wherein - when viewed in the side edge direction - the connecting element inserted into one of the plate base bodies and the connecting element inserted into the other plate base body extend in a direction different from opposite directions to each other. [12] Connection structure of plate base bodies according to claim 1, wherein the plate base bodies are arranged so that side edges face each other, each of the core elements is wave-shaped, so that the spatial zone surrounded by the convex portion and the side plate extends through the plate base body in the side edge direction, i.e. in a direction in which the mutually facing side edges run, the connecting element is inserted into the panel base body in such a way that it extends through the room zones, and an angle between the plate base bodies can be adjusted around the connecting element. [13] The connecting structure of plate bases according to claim 12, wherein the connecting member comprises a first insertion portion inserted into one of the plate bases along the side edge direction, a second insertion portion inserted into the other plate base along the side edge direction, and a connecting portion connecting the first insertion portion and the second insertion portion. [14] The connecting structure of plate bases according to claim 12, wherein the plate bases include a plurality of rectangular notch portions in a region where the connecting member is inserted spaced apart in the side edge direction, and a plurality of rectangular portions are formed spaced apart in the side edge direction by being cut out in the shape of the notch portion, and the rectangular portion of one of the plate bases is arranged to fit into the notch portion of the other plate base. [15] Connection structure of plate base bodies according to claim 2, wherein the connecting element is cylindrical, and the core element is wave-shaped and has a plurality of convex partial areas on both surfaces. [16] The joining structure of plate bases according to claim 2, wherein, when a distance between the convex portions in the side edge direction is p, a height of the convex portion is h, and a thickness of the core member is t, a radius r of the joining member is defined to satisfy: r0=php+214p2+h2+ε(0≤ε≤t) [17] Connection structure of plate base bodies according to claim 2, wherein the connecting element is designed in the form of a triangular prism and, when a distance between the convex portions in the side edge direction is p, a height of the convex portion is h, and a thickness of the core member is t, a height x of the connecting member and a length y of a bottom surface of the connecting member are defined to satisfy the following: y=(h−x)ph+ε (0 <x<h,−2t<ε<2t) [18] Connection structure of plate base bodies according to claim 17, wherein a cross-sectional area S of the fastener is specified to be smaller than S as given in: S=12p(h−t) and is larger than a cross-sectional area of ​​an isosceles triangle defined by the height x and the length y of the lower surface. [19] Connection structure of plate base bodies according to claim 2, wherein the connecting element is in the form of a rectangular parallelepiped, and when a distance between the convex portions in the side edge direction is p, a height of the convex portion is h, and a thickness of the core member is t, a height x of the connecting member and a length y of a bottom surface of the connecting member are defined to satisfy the following: y=(h−x)ph+ε(0 <x<h,−2t<ε<2t)

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