JP3195630U - Connection body and connection structure of plate material - Google Patents

Abstract

An object of the present invention is to provide a plate material in which a soft intervening material is disposed between outer plate bodies by using a concave groove formed on a side edge of the plate material and a ridge fitted into the concave groove without high accuracy. Provided is a connector that can be easily connected. A concave groove having a width narrower than the thickness of a plate material 21 is provided on a side edge of the plate material 21, and a ridge 11 (bank) having substantially the same width as the concave groove is provided on the outer plate body 2 of the other plate material 1. By forming this ridge 11 on the surface and fitting the ridge 11 into the groove, the plates 1 and 21 are connected to produce the connector 7. Since the intervening sheet 4 is soft, the decorative plates can be connected to each other even if the dimensional accuracy of the ridges 11 and the grooves is low. [Selection] Figure 3

Description

  The present invention relates to a connecting body and a connecting structure of plate materials, and more particularly to a connecting body and a connecting structure of plate materials such as a decorative board, a construction panel, a building material, an interior material, furniture, and an exhibition panel.

  Conventionally, a decorative sheet, a building panel, a building material, an interior material, furniture, a panel for an exhibition, etc., there are many intervening sheets between the outer plate body made of thin and hard plywood and the outer plate body. Lighter weights are used by interposing (intervening bodies). In order to connect such plate materials, the connecting members are fitted between the outer plate bodies of the two decorative plates and connected.

Japanese Patent Laid-Open No. 11-100833 JP 2002-11737 A JP 2004-44251 A JP 2010-168872 A

  However, in order to connect the plate members to each other, the dimensions of the connection body must be exactly matched to the inner space between the respective outer plate bodies of the two decorative plates.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to easily connect plate members without high accuracy.

  In order to achieve the above-mentioned object, the present invention is composed of at least two substantially parallel outer plate bodies made of substantially parallel deformation-resistant material, and interposed between these outer plate bodies, and integrated with these outer plate bodies. Connected, these two outer plate bodies are kept substantially parallel, have a large number of cavities, are softer than these outer plate bodies, are easier to deform than the outer plate bodies, and are not easily deformed by pressure from the side direction. , Formed of a material and a structure that is easily deformed by the pressure from the side edge direction, and formed between the two outer plate bodies and the intermediate body having a substantially constant thickness. A connecting body that connects plate members exposed to the edge and having a groove having a width smaller than the interval between the two outer plate bodies, and is fitted into the groove and formed on the surface of another plate member. It is made of a material that is not easily deformed, and is a ridge having the same width as the concave groove. And a connecting body characterized in that the connecting body is provided with a protrusion that connects the surface or side edge of the other plate material to the side edges of the two outer plate bodies. Provide a connection structure using

  As a result, the connecting body can be inserted into the plate material even if the dimensions of the protrusions of the connecting body and the groove grooves provided on the side edges of the plate material connected by the connecting body do not exactly match, and the connection between the plate materials can be achieved. It becomes easy, the production time of the structure assembled by connecting the plate materials can be shortened, and the production cost can be kept low.

The structure (plate structure) of the decorative board 1 is shown. The cross-section structure (plate structure) of the decorative board 1 is shown. The cross section of the cross-section T-shaped coupling body 7 (1st embodiment) of a two-layer honeycomb is shown. The connection process of the cross-sectional T-shaped connection body 7 (1st embodiment) of a two-layer honeycomb is shown. The cross section of the cross-section T-shaped connection body 7 (2nd embodiment) of a 1 layer honeycomb is shown. The cross section of the cross-sectional L-shaped coupling body 7 (3rd embodiment) of a two-layer honeycomb is shown. The cross section of the cross-section L-shaped coupling body 7 (4th embodiment) of a two-layer honeycomb is shown.

DESCRIPTION OF SYMBOLS 1 ... Decorative plate (plate material) 2 ... Outer plate body 3 ... Inner plate body 4 ... Intervening sheet (intervening body)
5 ... decorative paper 6 ... concave groove 7 ... connector 11 ... connector (projection)
12 ... Nails 13 ... Connecting tools (projections)
21 ... Decorative plate (plate material) 22 ... Extension

(1) Structure (plate structure) of decorative board 1 (plate material) (first embodiment)
FIG. 1 is a perspective view of a decorative board 1 (plate material) used in the present embodiment, and FIG. 2 shows a cross-sectional structure of the decorative board 1. 2 are the right and left directions in FIG. 1, respectively. As shown in FIG. 2, the decorative board 1 is interposed between at least two substantially parallel outer plate bodies 2, 2 made of substantially parallel and hardly deformable materials, and these outer plate bodies 2, 2. The two outer plate bodies 2 and 2 are integrally connected to each other, keep the two outer plate bodies 2 and 2 substantially parallel, have a large number of cavities, and are softer than the outer plate bodies 2 and 2 so as to correspond to the outer plate body 2. 2, intervening sheets 4 and 4 (intervening bodies) having a substantially constant thickness, made of a material and a structure that are more easily deformable, are not easily deformed by pressure from the side surface direction, and are easily deformed by pressure from the side edge direction. ). In addition, a substantially flat inner plate body 3 made of one or a plurality of hardly deformable materials is provided between the two outer plate bodies 2 and 2 and is substantially parallel to the outer plate bodies 2 and 2. Further, decorative papers 5 and 5 are attached to the surfaces of the outer plate bodies 2 and 2.

  The outer plate bodies 2 and 2 are substantially flat, and the two outer plate bodies 2 and 2 are substantially parallel to each other. Moreover, the outer plate bodies 2 and 2 are made of a hard material that is not easily deformed, such as wood or plywood. The thickness is several mm, desirably 1 to 5 mm, for example 2 to 4 mm.

  The inner plate 3 is also substantially flat and is made of one or a plurality of substantially parallel hard materials that are difficult to deform. For example, the inner plate 3 is made of the same material as the outer plates 2 and 2 such as wood or plywood. The thickness is several mm, desirably 1 to 5 mm, for example 2 to 4 mm. The inner plate 3 is substantially parallel to the outer plates 2 and 2 and is located between the two outer plates 2 and 2.

  Intervening sheets 4 and 4 (intervening bodies) are interposed between the outer plate bodies 2 and 2 and the inner plate body 3. As shown in FIG. 1, the intervening sheets 4 and 4 have a honeycomb structure in which a large number of thin corrugated papers having a substantially constant width are erected and arranged in a zigzag manner and arranged in a hexagonal shape. have.

  The thin long cardboard paper has a thickness of several mm, for example, 1 to 3 mm, a width of several tens to several mm, for example, 5 to 10 mm, and the width is larger than the thickness. The decorative board 1 of the present embodiment has a two-layer honeycomb structure in which two intervening sheets 4 and 4 are overlapped via an inner plate body 3.

  Since the intervening sheets 4 and 4 have a structure in which corrugated paper is erected as described above, the intervening sheets 4 and 4 are not easily deformed by the pressure in the side surface direction of the decorative board 1, that is, the width direction, that is, the vertical direction in FIG. The decorative plate 1 is easily deformed by the pressure from the side edge direction, that is, the surface direction or the longitudinal direction, that is, the left-right direction in FIG.

  The intervening sheets 4, 4 are thicker than the outer plate bodies 2, 2 and / or the inner plate body 3, and the inner plate body 3 has substantially the same thickness as the outer plate bodies 2, 2. An adhesive or the like is applied to one side surface of the intervening sheets 4, 4 and is crimped to the inner surface of the outer plate 2. Adhesive or the like is also applied to the other side surfaces of the intervening sheets 4 and 4, and pressed onto both side surfaces of the inner plate body 3.

  In the case where there are a plurality of inner plate bodies 3, in addition to the above, an adhesive or the like is applied to one side surface of the interposition sheet 4 between the plurality of inner plate bodies 3. The adhesive sheet is applied to the other side surface of the intervening sheet 4 and pressed to both side surfaces of the other inner plate body 3.

  In this crimping, pressure is applied from above and below with a flat press or with a rolling roller. In this way, the interposition sheets 4 and 4 are integrally connected to the outer plate bodies 2 and 2 and the inner plate body 3. Since the intervening sheets 4 and 4 have a substantially constant thickness, the outer plate bodies 2 and 2 and the inner plate body 3 are kept substantially parallel to each other. The decorative papers 5 and 5 are adhered and adhered to the outside of the outer plate bodies 2 and 2 with an adhesive or the like. These decorative papers 5 and 5 are paper sheets of wood grain pattern, single color, and other patterns.

  The outer plates 2 and 2 and the inner plate 3 are not deformable materials such as wood and plywood, but are deformed such as bamboo, hard resin, hard carbon, metal, glass, hard rubber, and mixtures / multilayer laminates thereof. Materials that are difficult to do may be used.

  As described above, the material of the intervening sheets 4 and 4 is a cardboard having a honeycomb structure, which is softer than the outer plate bodies 2 and 2 and the inner plate body 3, and the outer plate bodies 2 and 2 and the inner plate body 3. Made of more easily deformable material. These intervening sheets 4 and 4 are not only corrugated paper but also soft resin, soft carbon, soft rubber, cardboard, cardboard, cotton, cloth, fiber, urethane, urethane foam, sponge, and mixtures / multilayer laminates thereof. Easy-to-use material may be used.

  The structure of the intervening sheet 4 may be a hexagonal honeycomb structure, a rectangular grid structure, or the above material may form a monochromatic pattern, a striped pattern, a polka dot pattern, a triangular dotted pattern, or other dotted patterns. The outer plate bodies 2 and 2 and the inner plate body 3 are made of a softer material.

  Since the decorative sheet 1 includes the intervening sheets 4 and 4 having a large number of cavities as described above, the decorative sheet 1 is strong and light, convenient to carry, and has high work efficiency.

(2) Production method of decorative board 1 (plate material) (first embodiment)
Production of the decorative plate 1 (plate material) having the two-layer honeycomb structure as described above is performed as follows. A veneer plate having a desired thickness and desired vertical and horizontal dimensions, and other plate materials to be the outer plate bodies 2 and 2 are placed on a flat base / mounting table such as a hydraulic press.

  An adhesive is applied to the upper and lower surfaces of the intervening sheet 4 (intervening body) having the honeycomb structure as shown in FIG. 1, and the intervening sheet 4 is placed on the plate material to be the outer plate body 2. A plate material such as a veneer plate to be the inner plate body 3 is placed thereon, and a flat press plate of the press machine is lowered and pressed / pressed by the press machine.

  Thereby, one surface of the intervening sheet 4 is bonded to one surface of the outer plate body 2, and the other surface of the intervening sheet 4 is bonded to one surface of the inner plate body 3. The inner plate 3 is pressure-bonded / connected and laminated together. Since the intervening sheet 4 has a substantially constant thickness, the outer plate body 2 and the inner plate body 3 are kept substantially parallel.

  Next, an adhesive is applied to the upper and lower surfaces of another intervening sheet 4 (intervening body), and the intervening sheet 4 is placed on the plate material to be the inner plate body 3. A plate material such as a veneer plate to be the plate body 2 is placed, and a flat press plate of the press machine is lowered and pressed / pressed by the press machine.

  Thereby, one surface of the interposition sheet 4 is bonded to one surface of the outer plate body 2, the other surface of the interposition sheet 4 is bonded to one surface of the inner plate body 3, and the outer plate is bonded by pressure bonding. On the body 2, the intervening sheet 4, and the inner plate body 3, the intervening sheet 4 and the outer plate body 2 are further crimped / connected and laminated together. Since the intervening sheets 4 to be laminated later are also substantially constant in thickness, the outer plate bodies 2 and 2 and the inner plate body 3 are all kept substantially parallel.

  When there are a plurality of inner plate bodies 3, the following steps are executed between the two press-bonding laminations. An adhesive is applied to the upper and lower surfaces of the intervening sheet 4 (intervening body) having a honeycomb structure as shown in FIG. 1, and the intervening sheet 4 is placed on the plate material to be the inner plate body 3. A plate material such as a veneer plate to be the inner plate body 3 is placed thereon, and a flat press plate of the press machine is lowered and pressed / pressed by the press machine.

  Thereby, one surface of the intervening sheet 4 is bonded to one surface of the lower inner plate body 3, and the other surface of the intervening sheet 4 is bonded to one surface of the upper inner plate body 3, and the above-described pressure-bonding lamination is performed. Further, the interposition sheet 4 and the inner plate body 3 are further crimped / connected on the outer plate body 2, the interposition sheet 4, and the inner plate body 3 and are integrally laminated. Since the thickness of the intervening sheet 4 is substantially constant, the inner plate body 3 and the inner plate body 3 are kept substantially parallel. Such a process is repeated according to the number of the inner plate bodies 3.

  The outer plate body 2, the interposition sheet 4, and the inner plate body 3 as described above have the same size, for example, 1230 mm × 2440 mm. The intervening sheet 4 may protrude from the outer plate body 2 and the inner plate body 3, and the protruding portion is cut. The decorative board 1 laminated in this way is cut into a desired size, and is used for a construction panel, building material, interior material, furniture, display panel, etc., which will be described later.

  The intervening sheet 4 having a honeycomb structure is formed by die cutting, a molding die or the like. This die-cutting and molding die may be formed by a roller. The press machine can be replaced with a pressure rotating roller, and the decorative board 1 is produced endlessly. The decorative paper 5 is coated with an adhesive on the back surface and is pressure-bonded to the upper and lower surfaces of the decorative board 1 with a pressure rotating roller. The above production method is also possible when the outer plate body 2, the inner plate body 3, and the interposition sheet 4 are made of the other materials described above.

(3) Connecting structure of connecting tool 11, decorative plate 1, decorative plate 21, connecting step (first embodiment)
FIG. 3 shows the surface of the decorative board 21 having the same two-layered honeycomb structure on the side edge of the decorative board 1 having the two-layered honeycomb structure as shown in FIG. Shows a cross section in a state of being connected in a T-shaped cross section. FIG. 4 shows the connecting process. 3 and 4 are upside down. In the present embodiment, the two decorative plates 1 and 21 to be connected have the same structure and the same size.

  In the decorative plate 1, a groove 6 is formed between the two outer plate bodies 2, 2, and the opening of the groove 6 is exposed at the side edge of the two outer plate bodies 2, 2. The width 6 is smaller than the distance between the two outer plates 2 and 2. The lengths of the outer plate bodies 2 and 2 are equal at the side edges joined to the decorative plate 21, but the inner plate body 3 is shorter than the outer plate bodies 2 and 2.

  On the other hand, the connecting tool 11 is fitted in the concave groove 6 and has an elongated rectangular prism shape having a width substantially the same as the concave groove 6, that is, a convex ridge (convex ridge, bank), and the width of the convex ridge is the concave groove. It is almost the same as the groove 6. The connector 11 (projection) is press-fitted into the concave groove 6. As a result, the surface of the other decorative plate 21 is connected to the side edges of the two outer plate bodies 2, 2 of the decorative plate 1.

  The width of the connector 11 (protrusion) or the width of the groove 6 is smaller than the length between the two outer plates 2 and 2 of the decorative plate 1 and larger than the thickness of the inner plate 3. ing. Further, the height of the connector 11 (projection) is the same as the depth of the concave groove 6, that is, the difference in height between the inner plate 3 and the outer plates 2 and 2. In addition, the height of the coupler 11 (projection) may be smaller than this depth / difference.

  Below, the connection process of the said decorative board 1 and the decorative board 21 is demonstrated with reference to FIG. The connector 11 is formed on the surface of another decorative board 21 as shown in FIG. That is, the connecting body 11 that is a rectangular prism is bonded to the outer plate body 2 at a desired position on the surface of the outer plate body 2 of the decorative plate 21 by using an adhesive or a nail body 12 at a right angle. Bonded, standing upright and fixed.

  Next, as shown in FIG. 4, the connecting plate 11 fixed / formed on the surface of the decorative plate 21 is press-fitted into the concave groove 6 provided between the two outer plate bodies 2, 2. The decorative plate 1 is pressed and connected in the direction of the arrow in FIG. 4 so that the decorative plate 1 is perpendicular to the outer surface / upper surface / lower surface of the outer plate body 2 of the decorative plate 21. Thus, the surface / outer surface of the decorative plate 21 is connected to the side edges of the outer plate bodies 2 and 2 of the decorative plate 1. In this case, an adhesive may be applied to the side edge of the decorative board 1.

  As described above, the intervening sheets 4 and 4 are made of a material and a structure that are easily deformed with respect to pressure from the side edge direction / outer edge direction. That is, the intervening sheets 4 and 4 of the decorative plate 1 are made of a material that easily deforms when the protruding line hits, whereas the connecting tool 11 (the protruding line) is made of a hard material that is difficult to deform. 11, the connecting body 11 deforms the intervening sheets 4 and 4 even if the dimensions such as the depth, width and depth of the concave grooves 6 provided in the intervening sheets 4 and 4 do not completely match. And the connector 11 can be received in the groove 6

  Moreover, since the outer plate bodies 2 and 2 and the inner plate body 3 are made of a hard material and are not deformed even when the connecting tool 11 (projection) hits, the connecting tool 11 comes into contact with the inner plate body 3. The connector 11 is fixed without being inserted into the decorative board 1 any more. Therefore, although the height of the connector 11 is smaller than the depth of the concave groove 6, it may be the same or larger.

  In this way, the decorative board 1 is connected to the decorative board 21 at a right angle so as to have a T-shaped cross section as a whole, and the connected body 7 is produced. When the decorative board 1 is pressed against the decorative board 21, it is struck by a wooden mallet or the like or inserted by hand. Thus, the decorative plate 1 and the decorative plate 21 are firmly connected and fixed to the connector 11, and the decorative plate 1 and the decorative plate 21 are also firmly connected and fixed by the connector 11.

  Further, as shown in FIG. 3, the nail body is straight in a perpendicular direction from the surface of the outer plate 2 of the decorative plate 21 on the side where the decorative plate 1 is not connected, that is, the opposite side of the connecting device 11, toward the connecting device 11. 12 may be struck. The nail body 12 penetrates the outer plate body 2, the interposition sheet 4, the inner plate body 3, the interposition sheet 4, and the outer plate body 2 from the decorative plate 21 side, and further reaches the connector 11. Here, since the outer plate body 2, the inner plate body 3, and the connector 11 are made of a hard material, the decorative plate 1 and the decorative plate 21 are more firmly connected and fixed without the nails 12 being wobbled.

  When the connecting body 11 is inserted into the concave groove 6 of the decorative plate 1, an adhesive is applied to the side edges of the inner plate body 3 and the outer plate bodies 2 and 2 of the decorative plate 1, the concave groove 6 and the outer surface of the connector 11. May be applied. If the adhesive is not applied and the nail body 12 is not struck, the decorative board 1 can be removed from the connector 11 and reused, which is useful for recycling and does not generate waste. In addition, a squirrel-like nail may be driven along a right-angled dent where the outer plate bodies 2 and 2 of the decorative plate 1 and the outer plate members 2 and 2 of the decorative plate 21 contact each other.

  In this embodiment, the length of the inner plate 3 at the side edge of the decorative plate 1 bonded to the decorative plate 21 is shorter than the length at the side edge of the outer plate 2, 2, and the connector 11 (convex Is the same as the height difference between the inner plate 3 and the outer plates 2 and 2 in the groove 6. As a result, when the end portion of the inner plate body 3 comes into contact with the end portion of the connecting body 11, the end portions of the outer plate bodies 2 and 2 come into contact with the surface of the outer plate body 2 of the decorative plate 21, There is no gap between the surface of the outer plate body 2 of the plate 21 and the outer plate bodies 2 and 2 of both of the decorative plates 1, and the connected connector 7 is excellent in appearance.

  In addition, the height of the coupler 11 (projection) may be smaller or larger than the depth of the groove 6 or the difference between the inner plate body 3 and the outer plate bodies 2 and 2. If the height of the connector 11 (projection) is smaller than the depth of the concave groove 6 or the difference between the inner plate body 3 and the outer plate bodies 2, 2, excess adhesive is stored in the deep groove groove 6. it can. If the height of the coupling tool 11 (projection) is larger than the depth of the concave groove 6, the coupling tool 11 will squeeze the back of the intervening sheet 4 of the concave groove 6 to be more firmly press-fitted and connected.

  When the height of the connector 11 (projection) is greater than the difference between the inner plate body 3 and the outer plate bodies 2, 2, the inner plate body 3 is not deformed by the connector 11, so the connector 11 is the inner plate body 3. The connector 11 is not inserted into the groove 6 any more in the state of being in contact with the groove 6, and there is a gap between the outer plate bodies 2, 2 and the surface of the decorative plate 21, but this portion may be filled with an adhesive or the like. . Alternatively, if a concave portion is provided in the portion that contacts the inner plate body 3 of the connector 11, or if the tip portion of the inner plate body 3 in the groove 6 is dissolved or softened with a medicine, water, or the like, The connector 11 can be inserted to the back of the groove 6.

  In addition, the height of the connector 11 (projection) may be smaller than the difference in height between the inner plate body 3 and the outer plate bodies 2 and 2 in the groove 6. Moreover, the width | variety of the coupling body 11 may be larger or smaller than the concave groove 6, and the larger one is desirable. That is, the side edges of the outer plate 2 and 2 of the decorative plate 1 are on the surface of the outer plate 2 of the decorative plate 21 even if there is a slight error in the dimensions of the connecting body 11 (projection) and the groove 6. To be joined.

  Therefore, when connecting the decorative plate 1 and the decorative plate 21 using the connector 11 (projection), the depth of the groove 11 provided in the interior of the connector 11 (projection) and the decorative plate 1. The dimensions such as width and depth do not need to be completely matched, high accuracy is not required, and when producing a connection body such as a panel using the connection tool 11, it takes less time and production time. The production cost can be kept low.

(4) Use of connector 11 and decorative board 1 (first embodiment)
The connector 11 and the decorative plates 1 and 21 as described above are used for the following applications. Building materials, interior materials, furniture, display panels, construction panels, etc. As furniture and construction panels, there are storage boxes, arrangement boxes, boxes, bookshelves, shelves, chests, desks, tables, drawers, partitions, and the like. Building materials and interior materials include outer walls, inner walls, roofs, ceilings, floors, doors, sliding doors, hinged doors, doors, windows, shutters, stairs, screens, fences, shelves, and the like. In this box, the connector 11 is connected to the four sides of the decorative board 1, and another decorative board 1 is connected to form a box.

  Display panels and production panels include display panels for product / product / art / craft / antique exhibitions, screens, photo shields, exhibition shields, art shields, partitions, etc. 1 are connected by a connecting tool 11 to form various types of display panels. In this case, the decorative board 1 is erected in the vertical direction, and is also installed obliquely and horizontally, and is used as a base, a ceiling, upper and lower partitions, a shelf, a signboard, and the like of the vertical decorative board 1.

  Such a decorative board 1 is cut into a desired size with a cutting blade / cutter / saw or the like, and a connecting tool 11 is also cut into a desired size, and the decorative board 1 is sequentially connected to the connecting tool 11. It will be assembled into the building materials, interior materials, furniture, display panels, etc. Such assembling is easy on site, and disassembling on site is also easy, and labor and time are not required for assembly and disassembly.

(5) Second Embodiment FIG. 5 shows a second embodiment. As shown in FIG. 5, the connector 11 can also be used when connecting decorative plates 1 and 21 having a single-layer honeycomb structure. FIG. 5 shows a cross section of the connector 7 in the second embodiment. The decorative board 1 and the decorative board 21 in this embodiment have no inner plate body, and have a structure in which an intervening sheet 4 is interposed between the two outer plate bodies 2 and 2.

  In addition, the outer plate bodies 2 and 2 and the interposition sheet 4 in this embodiment are made of the same material and structure as those used in the first embodiment. That is, the outer plate bodies 2 and 2 are made of a hard material that is substantially flat, substantially parallel to each other, and hardly deformed. The intervening sheet 4 is made of a soft and easily deformable material such as corrugated paper and has a number of cavities inside.

  In order to connect the decorative plate 1 and the decorative plate 21 as described above, in the same manner as in the first embodiment, between the two outer plate bodies 2, 2 of one decorative plate 1, the two sheets Grooves 6 are formed on the side edges of the outer plate bodies 2, 2, the openings of the groove 6 are exposed at the side edges, and the width of the openings of the groove 6 is set to two outer plate bodies 2. 2 is narrower than the inner space.

  And the coupling tool 11 (projection) which has the substantially same width | variety as the said groove 6 is formed in the surface of the other decorative board 21, and this coupling tool 11 (projection) consists of a material which cannot change easily. In this embodiment, the connection body 11 is a rectangular parallelepiped prism similar to the first embodiment. And this connection tool 11 (projection) is press-fitted into the concave groove 6, and the surface of the other decorative plate 21 is connected to the side edges of the two outer plate bodies 2, 2 of the decorative plate 1. The body 7 is produced.

  In both the single-layer honeycomb decorative plates 1 and 21, the outer plate 2 is not deformed even when the connector 11 (projection) hits, and the interposition sheet 4 is easily deformed when the connector 11 (projection) hits. Made of material. Further, when the decorative plates 1 and 21 are connected to each other, since there is no inner plate body made of a hard material inside, the height of the connecting tool 11 (projection) is formed in the groove 6 provided inside the decorative plate 1. Even if the height is higher than the height, the connector 11 deforms the interposition sheet 4 and bites into the decorative plate 1. For this reason, when connecting the honeycombs to one layer, the accuracy of the dimensions of the connector 11 and the groove 6 is further roughened compared to the case of connecting the two-layer honeycombs as in the first embodiment. can do.

  Further, since the connector 11 is completely accommodated in the outer plate bodies 2, 2, the connector 11 can be covered with the outer plate bodies 2, 2. Therefore, the decorative paper 5 is not required on the outer surface of the connector 11, and the joint between the connector 11 and the decorative board 21 can be eliminated. An adhesive may be applied to the side edges of the outer plate bodies 2, 2 of the decorative plate 1, the surface of the connector 11, and the surface of the groove 6 of the decorative plate 1. If the adhesive is not applied, the decorative plate 1 can be removed from the connector 11 and reused, which is useful for recycling and does not generate waste.

  The other configurations, operations, and effects of the present embodiment are the same as those of the first embodiment, and these descriptions are also described in the present embodiment. It is also described in the first embodiment. Reference is made to other embodiments that are not described in the second embodiment.

(6) Third Embodiment FIG. 6 shows a third embodiment. FIG. 6 shows a cross section of a connection body 7 in which decorative plates 1 and 21 having a two-layer honeycomb structure are connected in an L shape between ends using the connector 11 of the present invention. The decorative plate 1, the decorative plate 21, the connector 11, and the connector 13 are all made of the same structure and material as those described in the first embodiment. In this embodiment, the decorative board 1 and the decorative board 21 are the same size, and both the connection tool 11 and the connection tool 13 are rectangular parallelepiped prisms, and are substantially the same size.

  At the side edge of the decorative plate 21, the outer plate bodies 2 and 2 have the same length, but the inner plate body 3 is shorter. And the groove 6 is formed between the outer plate bodies 2 and 2 of the decorative board 21, and the opening part of this groove 6 is exposed to the side edge. Then, a connecting body 13 (protrusion) having approximately the same width as the concave groove 6 is press-fitted into or inserted into the concave groove 6. In the decorative plate 21, the total length of the length of the connecting body 13 and the length of the inner plate body 3 is equal to the length of the outer plate bodies 2 and 2. The connecting body 13 is substantially parallel to the outer plate bodies 2 and 2 and the inner plate body 3.

  On the other hand, the lengths of the two outer plate bodies 2 and 2 and the inner plate body 3 are different from each other at the side edge of the other decorative plate 1 that is connected to the decorative plate 21. One outer plate body 2 of the decorative plate 1 extends longer outward than the other outer plate body 2 by the thickness of the decorative plate 21, and an extension portion 22 is formed. Thus, after the decorative plate 1 and the decorative plate 21 are connected, the extended portion 22 of the longer outer plate body 2 of the decorative plate 1 covers the side edge of the decorative plate 21 and the concave groove 6 and the connecting body 13. The side edge of the decorative board 21 and the connecting body 13 are not exposed.

  Further, the length of the inner plate body 3 of the decorative plate 1 is further shorter than the length of the other shorter outer plate body 2 by the length of the connector 11. And the groove 6 of the width | variety substantially the same as the connection tool 11 inserted by press fitting later is formed in the side edge of the decorative board 1. FIG.

  In order to connect the decorative plate 1 and the decorative plate 21, first, connect the connector 11 to an appropriate position near the end of the surface of one outer plate body 2 (left side in FIG. 6) of the decorative plate 21. Adhering to the outer plate body 2 at a substantially right angle, the connector 11 is erected on the surface of the outer plate body 2 at a right angle. Next, an adhesive or the like is applied to the outer surface of the standing connector 11, the connector 11 is press-fitted into the concave groove 6 of the decorative plate 1, and the decorative plate 1 is placed in a direction substantially perpendicular to the decorative plate 21. To connect to each other.

  At this time, an adhesive is applied to the outer surface / exposed surface of the connector 13 press-fitted into the side edge of the decorative plate 21, or an adhesive is applied to the inner surface of the extending portion 22 of the decorative plate 1. . Thereby, the decorative board 1 and the decorative board 21 are firmly connected to the L-shaped cross section at the side edges. The nail body 12 may be driven from the decorative plate 1 side of the L-shaped corner to the connector 13, or the nail body 12 is driven from the decorative plate 21 side to the two connectors 13 and 11. It may also be a squirrel-shaped nail.

  Moreover, by this, the longer outer plate body 2 of the decorative plate 1 covers the side edge of the decorative plate 21, covers the exposed surface of the outer surface of the connector 7, and becomes an outer edge. Furthermore, the connector 11 is press-fitted into the concave groove 6 formed inside the decorative plate 1 and cannot be seen from the outside. Moreover, the said connector 13 (projection) is formed in the inner surface side of the said extension part 22 by this.

  Thus, since the outer plate body 2 of the decorative plate 1 completely covers the side edge of the decorative plate 21 and the groove 6, this portion is not exposed. Moreover, since the side edge of the decorative board 1 is also covered with one outer plate body 2 (left side in FIG. 6) of the decorative board 21, it is not exposed and the decorative board 1 is firmly joined to the decorative board 21, An L-shaped connecting body 7 is formed.

  The other configurations, operations, and effects of the third embodiment are the same as those of the first embodiment or the second embodiment, and these descriptions are also described in the present embodiment. The description of the form is also described in the first embodiment or the second embodiment. Other embodiments are referred to for not being described in the third embodiment, and those not described in the first embodiment or the second embodiment are the first embodiment or the second embodiment. Reference is made to other embodiments.

(7) Fourth Embodiment FIG. 7 shows a fourth embodiment. FIG. 7 shows a cross section of another embodiment of a connection body 7 in which decorative plates 1 and 21 having a two-layer honeycomb structure are connected in an L shape. The decorative plates 1 and 21 used in the present embodiment are made of the same material and structure as the decorative plates 1 and 21 used in the first embodiment or the third embodiment, and have the same thickness.

  As shown in FIG. 7, the couplers 11 and 11 used in the present embodiment are substantially rectangular prisms whose one end is cut at an angle of 45 degrees, and have the same size and shape as each other. Consists of. Alternatively, the connecting tool used in the present embodiment may be an integral prism having an L-shaped cross section when the connecting tools 11 and 11 are joined at an oblique 45-degree cut surface. The couplers 11 and 11 are made of a hard material that is not easily deformed, like the couplers used in the first to third embodiments.

  The decorative plates 1 and 21 used in the present embodiment have a two-layer honeycomb structure made of the same material and composition as the decorative plates used in the first embodiment or the third embodiment. The side edges of the decorative plates 1 and 21 that are connected to each other are cut at an angle of 45 degrees as in the case of the connectors (protrusions) 11 and 11. And between the outer plate bodies 2 and 2 on the side edges of the decorative plates 1 and 21, concave grooves 6 and 6 having substantially the same width as the widths of the couplers (projections) 11 and 11 are formed.

  In order to connect the decorative plate 1 and the decorative plate 21, one connecting tool 11 is inserted into one of the decorative plates, for example, the concave groove 6 formed on the side edge of the decorative plate 21. The 45-degree cut surface is connected to the oblique 45-degree cut surface of the other connector 11 with an adhesive or a nail to form a connector made of a prism having an L-shaped cross section.

  Then, the connecting tool 11 (protrusion) not inserted in the decorative plate 21 is press-fitted into the groove 6 on the other side edge of the decorative plate 1, and the decorative plate 1 and the decorative plate 21 are pressed to each other in a direction perpendicular to each other. The plates 1 and 21 are connected. In this case, an adhesive may be applied to the side edges of the decorative plates 1 and 21.

  Alternatively, the couplers 11, 11 are coupled to each other with an adhesive or a nail to form a L-shaped coupler, and the decorative plates 1, 21 are formed on the respective side edges of the coupler. The grooves may be connected by being pushed in at right angles to each other so as to be press-fitted into the recessed grooves 6, 6.

  At this time, an adhesive is applied to the outer surface / exposed surface of the couplers 11, 11, or an adhesive is applied in the concave grooves 6, 6 of the decorative plates 1, 21, or Apply adhesive to the end faces. Thereby, the decorative board 1 and the decorative board 21 are firmly connected to the L-shaped cross section at the side edges. The nail body 12 may be driven from the decorative plate 1 side of the L-shaped corner to the connector 11 on the decorative plate 21 side, or from the decorative plate 21 side to the connector 11 on the decorative plate 1 side. The nail body 12 may be driven in, or a snail shaped nail may be driven in.

  As described above, the L-shaped couplers 11 and 11 (protrusions) are respectively fitted into the concave grooves 6 and 6 of the decorative plates 1 and 21 to be connected, and the decorative plates 1 to be connected are connected. , 21 are coplanar. Thereby, the connected couplers 11 and 11 are fitted into the recessed grooves 6 and 6 of the decorative plates 1 and 21 to be connected, and the decorative plates 1 and 21 are firmly connected.

  In addition, the above-mentioned connecting tools 11 and 11 (projections) are connected to two connecting tools 11 and 11 (projections), the connecting surface of the connecting tools 11 and 11 (projections), and the decorative plate to be connected. The connecting surfaces 1 and 21 are coplanar. Thereby, the connecting surface of the decorative plates 1 and 21 to be connected and the connecting tools 11 and 11 (projections) becomes the same plane, and the connection without a gap is realized.

  According to this embodiment, when connecting decorative plates 1 and 21 having the same thickness, one side edge of all decorative plates is similarly cut at an angle of 45 degrees, and this cut surface has the same width. If a plurality of the grooves having the recessed grooves 6 are produced, the production time of the coupling body and the coupling structure can be further shortened, and the production cost can be reduced.

  The other configurations, operations, and effects of the fourth embodiment are the same as those of the first to third embodiments, and these descriptions are also described in the present embodiment. The description of the form is also described in the first to third embodiments. The other embodiments are referred to as not being described in the fourth embodiment, and the fourth embodiment is referred to as not being described in the first to third embodiments.

(8) Other Embodiments The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the intervening sheet 4 may be thinner than the outer plate bodies 2, 2 and / or the inner plate body 3, and the inner plate body 3 may be thinner or thicker than the outer plate bodies 2, 2. The outer plate bodies 2 and 2 may have the same thickness or different thicknesses. The thickness of the intervening sheet 4 is 2 to 6 times that of the outer plate body 2, 2 or / and the inner plate body 3, but it may be the same, 6 times or more, 1/2 times, 1/3 times. , 1/4 times, etc. Accordingly, the dimensions of the connector 11 (projection) or the groove 6 are also changed.

  The inner plate body 3 of one decorative board 1 may be a plurality of two, three, four,... Or a plurality of outer plates 2, 2 may be three, four,. The inner plate body 3 and the outer plate bodies 2 and 2 are parallel to each other, but some or all of them may not be parallel. The inner plate body 3 and the outer plate bodies 2 and 2 are flat, but may be curved, curved or part of a spherical surface. Accordingly, the number and shape of the connecting tool 11 or the groove 6 are also changed.

  The nail body 12 may be any one such as a nail, a wood screw, a corrugated plate-like nail, an anchor, a bolt, and a snail. The width of the nail body 12 such as these wave nails may be larger than the width of the inner plate body 3 and protrude to the interposition sheet 4, or may be smaller than the width of the inner plate body 3, It may straddle the plate 3. The nail body 12 may or may not be struck, and an adhesive may or may not be applied to the recessed groove 6 or the connecting tool 11 (projection).

  Part or all of the decorative paper 5 may be omitted. In this case, the outer surfaces of the outer plate bodies 2, 2, etc. may be finished to a glossy surface. The decorative paper 5 may be paper, cloth, resin, wood, bamboo, metal, glass, thread, fiber, rubber, carbon, urethane, urethane foam, sponge, or the like.

  In the above embodiment, the decorative plates 1 and 21 connected by the connector 11 are connected at right angles to each other, but can be connected at a desired angle. In that case, the side edge of the decorative board is cut obliquely with a desired angle, and the connecting surface of the connector 11 is also cut obliquely with a desired angle along this.

  In the above embodiment, the connecting tool 11 connects two decorative plates, but may be an edge cap that covers the side edges of the single decorative plate 1. In this case, the side edge of the connector 11 that closes the side edge of the decorative board 1 may be flat or not flat, and a ridge or a groove may be formed.

  The connector 11 may connect two decorative plates at various angles other than a right angle, a linear shape of 180 degrees, and a shape, or connect three or more decorative plates to each other. May be. Accordingly, the connector 11 may have a plurality of ridges, and each surface of the side edge of each connecting portion of the decorative plates 1 and 21 and the connectors 11 and 13 has an oblique angle corresponding thereto. Become.

  The overall shape of the connector 11 is a rectangular column shape, a cylindrical shape or an L shape, a T shape, a cross-shaped prism, a triangular cross section, a shape with a sharp upper edge, a quadrangular pyramid, a pyramid, a cone, etc. It may be one in which a number of shapes with a sharp upper end are arranged, one having a curved side, one having a curved upper surface, one having a concave upper surface, etc., and is press-fitted into the concave groove 6 provided on the side edge of the decorative board Any shape may be used as long as it has convex ridges. The depth of the connector 11 is the same as the depth of the outer plate member 2, 2 or the inner plate member 3, but it may be shorter or longer, and the connector 11 having a depth of about several tens of mm is arranged in a row. It may be arranged.

  Moreover, as a material of the connection tool 11, it should just be the hardness of the range which deform | transforms the interposition sheet | seat 4 to a side edge direction, and does not deform | transform the outer-plate bodies 2, 2, and the inner-plate body 3, such as a timber, a veneer board, etc. The same material as the outer plate bodies 2 and 2 and the inner plate body 3 may be used, and wood, bamboo, hard resin, hard carbon, metal, glass, hard rubber, and a mixture / multilayer laminate thereof may be used.

  The plurality of decorative plates connected by the connector 11 may be of the same size, the same structure, the same material, or may be different from each other. Moreover, when using two or more connection tools 11, the magnitude | size, shape, and material may be the same, and may differ.

  In FIG. 6, the connecting tool 13 on the decorative board 21 side may be omitted. Moreover, the coupling tool 11 by the side of the decorative board 1 may be abbreviate | omitted. In this case, in addition to the outer plate body 2 of the decorative plate 1, the inner plate body 3 (and the intervening sheet 4) are also extended, and the extending portion 22 includes the outer plate body 2, the inner plate body 3, and the intervening sheet therebetween. 4 (intervening body). In this case, the connector 13 is provided / formed / provided on the exposed surface / outer surface / surface of the inner plate 3. Further, in this case, only the outer plate body 2 outside the decorative plate 21 is extended, and an extended portion is also formed on the decorative plate 21.

  Although the width / thickness / thickness of the couplers 11 and 13 is larger than the thickness of the inner plate body 3, it may be smaller than the thickness of the inner plate body 3, or may be the same width / thickness / thickness. The width / thickness / thickness of the couplers 11 and 13 was smaller than the thickness of the intervening sheet 4 (intervening body), but may be larger than the thickness of the intervening sheet 4 (intervening body), or the same width / thickness. / Thickness may be used.

  The intervening sheet 4 (intervening body) is filled without a gap between the outer plate bodies 2 and 2 and the inner plate body 3, but the intervening sheet 4 (intervening body) and the outer plate body 2, 2 or the inner plate body. There may be a gap between 3 and 3. Further, the intervening sheet 4 (intervening body) is omitted, and a space between the outer plate bodies 2 and 2 and the inner plate body 3 may be provided.

  The slopes of 45 degrees of the coupler 11 (projection) in FIG. 7 may be anything as long as they can engage with each other, such as a magnet and a metal adsorbed to the magnet, a hook and a hook, a male screw and a female screw. The decorative plate 1 may be a plate material such as a construction panel, a building material, an interior material, furniture, or a display panel.

  6 and 7, the bonding surfaces of the decorative plates 1 and 21 may be stepped, curved, or uneven surfaces, and there may be a gap during bonding. In this case, the joint surfaces of the couplers 11 and 11 in FIG. 7 are not inclined at 45 degrees, and the distal end surface of the other coupler 11 may be abutted and joined to the lateral surface of the distal end of one coupler 11. Moreover, the joint surfaces of the couplers 11 and 11 in FIG. 7 may be stepped, curved, or uneven.

  In each of the above-described embodiments, the contents described in other embodiments are referred to and cited as being not described in the embodiment. In the specification of the present application and the claims, embodiments in which each part or part is replaced over the plurality of embodiments are also described as the respective embodiments.

  Decorative plate (plate material) 1, outer plate body 2, inner plate body 3, intervening sheet 4 (intervening body), decorative paper 5, recessed groove 6, connecting body 7, connecting tool (convex strip) 11, nail body 12, connecting There may not be all or a part of the tool (projection strip) 13, the decorative board (plate material) 21, the extending part 22, the adhesive, etc., and the number thereof may be increased or decreased, and the shape thereof is arbitrary. Can be replaced with other equivalents, or two or more of these can be combined or integrated, and other can be added, stacked, They may be mixed, the dimensions may be other than those described above, and the relative sizes of the dimensions may be switched or the same.

(9) Effects of other devices [1] At least two substantially parallel outer plates made of substantially parallel and hardly deformable materials,
Interposed between these outer plate bodies and integrally connected with these outer plate bodies, keeping these two outer plate bodies substantially parallel, having a large number of cavities and being softer than these outer plate bodies, An intermediate body having a substantially constant thickness, made of a material and a structure that is more easily deformed than the body, is not easily deformed by pressure from the side, and is easily deformed by pressure from the side edge; Formed between the plate bodies, exposed at the side edges of the two outer plate bodies, and fitted into the groove with a width smaller than the interval between the two outer plate bodies, It is formed on the surface and is made of a material that is not easily deformed, and is a ridge having substantially the same width as the groove, and the protrusion is fitted into the groove so that the side edge of the two outer plate bodies is A connecting body comprising a ridge for connecting the surfaces of the other plate members. As a result, even if the dimensions of the grooves provided on the plate material and the dimensions of the ridges do not exactly match, the plate materials can be easily connected to each other, thereby reducing the production time and production cost of the manufactured panel etc. it can.

[2] It is characterized by further comprising one or a plurality of substantially flat inner plates made of a material that is hardly deformed, located between the two outer plates, and being substantially parallel to the outer plates. The connected body according to claim 1. Thereby, since there exists an inner board | plate material in a board | plate material, a board | plate material can be further connected firmly by driving in a nail etc. so that it may penetrate to the inner board | plate material between the connected board | plate materials.

[3] The width of the ridge is smaller than the width between the two outer plate bodies and larger than the thickness of the inner plate body. The connecting body according to claim 2, wherein the connecting body is equal to or smaller than a difference in height with the outer plate material. As a result, even if the dimensions of the grooves and ridges provided in the plate material do not completely match, the plate members can be closely connected without exposing the connector, and a good-looking panel or the like can be made in a short time. Can be produced at low cost.

[4] The outer plate body and the inner plate body are not deformed even when the protruding line hits, and the inclusion is made of a material that easily deforms when the protruding line hits. The coupling body according to claim 2 or 3. As a result, even if the ridge is slightly larger than the groove provided on the side edge of the plate material, the connecting member deforms the intervening sheet and is inserted into the decorative plate, so even if the dimensional accuracy is relatively low, the decorative plate The two can be closely connected.

[5] At least two substantially parallel outer plate members made of substantially parallel deformation-resistant material, interposed between these outer plate members, and integrally connected with these outer plate members, these two outer plates Keeping the body almost parallel, having many cavities, softer than these outer plate bodies, more easily deformable than the outer plate bodies, and not easily deformed by the pressure from the side direction, but not by the pressure from the side edge direction Between the two outer plate bodies, which are made of a material and structure that is easily deformed, with a substantially constant thickness, so as to be exposed at the side edges of the two outer plate bodies, A concave groove having a width smaller than the interval between the two outer plate bodies is formed, made of a material that is not easily deformed, and a ridge having the same width as the concave groove is formed on the surface of another plate material, and the concave groove And a connecting structure for connecting the surface of the other plate material to the side edges of the two outer plate bodies. Thereby, even if the dimensional accuracy of a ditch | groove and a protruding item | line is low, a decorative board can be connected, the time required for the production of a connection body can be shortened, and production cost can also be held down. Further, the plate members can be connected in various shapes and angles depending on the shape of the connector.

[6] (FIG. 6) An extension formed by extending a part of the side edge of the outer plate body or the inner plate material outwardly from the side edges of the other outer plate body or the other inner plate material and the intermediate body. A protruding portion, the protruding portion is formed on the inner surface side of the extending portion, and a side edge of another plate member in which the recessed groove into which the protruding portion is fitted is formed is covered with the extending portion. The connected body according to claim 1, 2, 3 or 4. Thereby, even if there is no high precision, the connection part of the cross-section L-shape and the corner of another angle can be made beautiful.

[7] (FIG. 7) The concave grooves are respectively formed in the plate members to be connected, and the protrusions are fitted into the both concave grooves, respectively, and the connecting surfaces of the plate members to be connected form the same plane. The connected body according to claim 1, 2, 3, or 4. Thereby, the connected protruding item | line is engage | inserted by the ditch | groove of the board | plate material to be connected, and both board | plate materials are connected firmly.

[8] The connection according to claim 7, wherein two protrusions are connected to the protrusion, and the connection surface of the protrusion and the connection surface of the plate to be connected are on the same plane. body. Thereby, the connection surface of the board | plate material and protrusion which are connected becomes the same plane, and the connection without a clearance gap is implement | achieved.

  Both the decorative plate 1 and the decorative plate 21 have an inner plate 3 that is hardly parallel to the outer plates 2 and 2 between the two outer plates 2 and 2 that are substantially parallel to each other. Between these outer plate bodies 2 and 2 and the inner plate body 1, intervening sheets (intervening bodies) 4 and 4 that are easily deformed in the side edge direction of the plate material are interposed.

  A connector 11 (projection, bank) made of a material that is difficult to deform is bonded to the surface of the outer plate 2 that is an adhesive surface of one decorative plate 1, and the connector 11 is a side edge of the other decorative plate 21. The decorative plate 1 and the decorative plate 21 are connected and fixed by the connecting tool 11.

  If the connecting structure as described above is used, the interposition sheets 4 and 4 are soft and easily deformed. Therefore, even if the width of the connecting tool 11 is slightly larger than the width of the concave groove 6 formed in the side edge of the decorative plate 21, the connecting sheet 11 is connected. Since the tool 11 deforms the interposition sheet 4 around the groove 6 and is fitted into the side edge of the decorative plate 21, the production of the connecting body 7 does not take time and effort, and the production cost can be suppressed.

  A plate member 1, 21 in which a soft interposer 4 is arranged between the outer plate members 2, 2, a concave groove 6 formed on a side edge of the plate member 1, 21, and a ridge 11 fitted into the groove 6. Is used to provide a connection body 7 that can be easily connected even without high accuracy. A groove 6 narrower than the thickness of the plate 21 is provided on the side edge of the plate 21, and a ridge 11 (bank) having substantially the same width as the groove 6 is formed on the surface of the outer plate 2 of the other plate 1. By forming the protrusions 11 into the grooves 6, the plate members 1 and 21 are connected to produce the connecting body 7. Since the intervening sheet 4 is soft, the decorative plates can be connected even if the dimensional accuracy of the ridges 11 and the grooves 6 is low.

Claims (7)

A substantially flat outer plate body made of at least two substantially parallel and hardly deformable materials;
Interposed between these outer plate bodies and integrally connected with these outer plate bodies, keeping these two outer plate bodies substantially parallel, having a large number of cavities and being softer than these outer plate bodies, An intermediate body having a substantially constant thickness, which is made of a material and a structure that is more easily deformed than the body, is not easily deformed by pressure from the side surface direction, and is easily deformed by pressure from the side edge direction;
Formed between the two outer plate bodies, exposed at the side edges of the two outer plate bodies, and a groove having a width smaller than the interval between the two outer plate bodies;
It is fitted into this concave groove, formed on the surface of another plate material, made of a material that is difficult to deform, and is a convex strip having the same width as the concave groove, and by fitting this convex strip into this concave groove, A connecting body comprising a protrusion that connects the surface of the other plate material to a side edge of the two outer plate bodies.   2. The apparatus according to claim 1, further comprising one or a plurality of substantially flat inner plates made of a material which is located between the two outer plates and is substantially parallel to the outer plates and hardly deformed. The connected body according to 1.   The width of the ridge is smaller than the width between the two outer plate bodies and larger than the thickness of the inner plate body, and the height of the ridges is the inner plate material and the outer plate material in the concave groove. The connecting body according to claim 2, wherein the height difference is equal to or smaller than the difference in height.   3. The outer plate body and the inner plate body are not deformed even when the projecting ridge hits, and the intervening body is made of a material that is easily deformed when the projecting struck. Or the coupling body of 3. At least two substantially parallel outer plates made of substantially parallel deformation-resistant material, and interposed between these outer plates, are connected integrally with these outer plates, and the two outer plates are almost Keeping parallel, having many cavities, softer than these outer plate bodies and more easily deformable than the outer plate bodies, and not easily deformed by the pressure from the side surface direction, easily deformed by the pressure from the side edge direction For an inclusion made of material and structure and having a substantially constant thickness,
A material that is difficult to deform between the two outer plate bodies by forming a concave groove with a width smaller than the interval between the two outer plate bodies so as to be exposed at the side edges of the two outer plate bodies. Forming a ridge having the same width as that of the concave groove on the surface of the other plate material, fitting the groove into the concave groove, and connecting the surface of the other plate material to the side edges of the two outer plate bodies. Connected structure. A part of the outer plate body or the inner plate member is further provided with an extension portion formed by extending outward from the other outer plate member or other inner plate member and the side edge of the interposition body,
The ridges are formed on the inner surface side of the extension part,
The connecting body according to claim 1, 2, 3, or 4, wherein a side edge of another plate member in which a concave groove into which the convex strip is fitted is formed is covered with the extending portion.   The groove is formed in each of the plate members to be connected, and the protrusions are respectively fitted in the two grooved grooves, and the connecting surfaces of the plate members to be connected form the same plane. Claim | item 1, 2, 3 or 4 coupling body.

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