JP7629224B2 - Panel joint structure and panel fixing structure - Google Patents

Description

The present invention relates to a panel joining structure and a panel fixing structure.

The following Patent Document 1 discloses a panel made of a core material sandwiched between two metal plates, a structure for joining these panels together, and a structure for fixing the joined panels to the furring strips of the building frame.

JP 2012-82675 A

In the above-mentioned conventional technique, in order to fasten one of the adjacent panels to the furring strip, a pilot hole is first drilled so as to span the one panel and the furring strip. Next, the one panel is fastened to the furring strip by screwing a bolt into the pilot hole. Finally, the other panel is slid to complete the joining of the one panel to the other panel.
In the conventional technology, by forming a pilot hole, it is possible to prevent the tip of the threaded portion from slipping (running away) on the surface of the metal plate when the bolt begins to be screwed in. However, since the work involved in forming the pilot hole is required, the structure has poor workability.

The present invention aims to provide technology that can improve workability.

In order to achieve the above object, a panel joint structure according to one aspect of the present invention comprises:
The panel includes a core material having a predetermined thickness along a first direction, and a pair of metal plates attached to a first surface and a second surface of the core material, respectively;
A female joint portion having a concave shape extending along a third direction perpendicular to the first direction is provided at one end of the panel along a second direction perpendicular to the first direction,
The other end of the panel along the second direction is provided with a male joint portion having a convex shape extending along the third direction,
A panel joining structure in which the panels are arranged adjacent to each other in the second direction and the female joint portion and the male joint portion to be joined are joined,
The female joint portion is formed by forming one-end joint plate portions on the pair of metal plates at positions on both sides of the recess in the recess shape,
the one-end joining plate portion includes a one-end outer plate portion continuing from the metal plate main body of each of the pair of metal plates, a one-end first bent portion continuing from the one-end outer plate portion, and a one-end inner plate portion continuing from the one-end first bent portion and positioned on a first inner side of the panel that is more inward in the first direction than the one-end outer plate portion, and a one-end groove portion is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is recessed toward a first outer side of the panel, which is an outer side along the first direction, and is formed in a groove shape extending along the third direction.
It is characterized by:

In order to achieve the above object, a panel fixing structure according to one aspect of the present invention comprises:
The panel includes a core material having a predetermined thickness along a first direction, and a pair of metal plates attached to a first surface and a second surface of the core material, respectively;
A female joint portion having a concave shape extending along a third direction perpendicular to the first direction is provided at one end of the panel along a second direction perpendicular to the first direction,
The other end of the panel along the second direction is provided with a male joint portion having a convex shape extending along the third direction,
A panel fixing structure in which the panels are arranged adjacent to each other in the second direction and a panel joining structure is used to join the female joint portion and the male joint portion to be joined, thereby fixing the panel to a fixing object to form a panel fixing portion,
The female joint portion is formed by forming one-end joint plate portions on the pair of metal plates at positions on both sides of the recess in the recess shape,
the one-end joining plate portion includes a one-end outer plate portion continuing from the metal plate main body of each of the pair of metal plates, a one-end first bent portion continuing from the one-end outer plate portion, and a one-end inner plate portion continuing from the one-end first bent portion and positioned on a first inner side of the panel that is more inward in the first direction than the one-end outer plate portion, and a one-end groove portion is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is recessed toward a first outer side of the panel, which is an outer side along the first direction, and is formed in a groove shape extending along the third direction,
The panel fixing portion is formed by screwing a first screw into the one end groove portion to fix the female joint portion to the fixing object.
It is characterized by:

The present invention can improve workability.

1 is a diagram showing an example of a prefabricated refrigerator to which a panel joining structure and a panel fixing structure according to an embodiment of the present invention are applied, and an example of a building in which the prefabricated refrigerator is installed. 2 is an enlarged cross-sectional view showing an example of a panel fixing structure in a circle C in FIG. 1 . 2A and 2B are cross-sectional views showing an example of the panel joining structure and the panel fixing structure of FIG. 1 , where FIG. 2A is an explanatory view relating to the panel joining structure, and FIG. 2B is an explanatory view relating to the panel fixing structure. FIG. 4 is an enlarged cross-sectional view of the panel joining structure and the panel fixing structure of FIG. 3 . FIG. 1 is a perspective view showing an example of a state in which a plurality of ceiling panels are suspended. 6A and 6B are diagrams showing an example of the panel joining structure and panel fixing structure of FIG. 5, in which FIG. 6A is an explanatory diagram relating to temporary fixing of one panel, and FIG. 6B is an explanatory diagram relating to joining of one panel to another panel. FIG. 4 is an explanatory diagram of a concave shape and a convex shape. 1 is a cross-sectional view showing a first example of a panel joining structure and a panel fixing structure. FIG. 9 is an enlarged cross-sectional view of the panel joining structure and panel fixing structure of FIG. 8 which are a first example. FIG. 11 is a cross-sectional view showing a second example of a panel joining structure and a panel fixing structure. FIG. 11 is an enlarged cross-sectional view of the panel joining structure and panel fixing structure of FIG. 10, which is a second example. 11A and 11B are diagrams showing a third example of a panel joining structure and a panel fixing structure. FIG. 13 is an enlarged view of the panel joining structure and panel fixing structure of FIG. 12 which are a third example. 1A and 1B are diagrams showing an example of a panel fixing structure, in which FIG. 1A is an explanatory diagram relating to temporary fixing, and FIG. 1B is an explanatory diagram relating to full fixing.

<For example, regarding a building with a prefabricated refrigerator>
An example of a prefabricated refrigerator to which a panel joining structure and a panel fixing structure according to an embodiment of the present invention are applied and a building in which the prefabricated refrigerator is installed will be described.
FIG. 1 is a diagram showing an example of a prefabricated refrigerator to which a panel joining structure and a panel fixing structure according to an embodiment of the present invention are applied, and an example of a building in which the prefabricated refrigerator is installed.

In the building 200, for example, a prefabricated refrigerator 201 is installed. The prefabricated refrigerator 201 is a prefabricated refrigerator. In the present embodiment, the prefabricated refrigerator 201 is taken as an example, but the present invention is not limited thereto. That is, in addition to a prefabricated refrigerator-freezer for commercial use, the prefabricated refrigerator 201 may be used for a large refrigerated-freezer warehouse, an inner wall of a logistics center, an interior material of a data center, a clean room, or the like, or a base material of a shielded room or a soundproof room.
In addition, since the present invention is characterized by the panel joining structure 100 (see Figures 3 and 4) and the panel fixing structure 150 (see Figure 2) described below, explanations of, for example, the refrigeration system and the doors for entering and exiting will be omitted.

The prefabricated refrigerator 201 includes a wall panel 1A forming a side wall and a ceiling panel 1B forming a ceiling. The wall panel 1A and the ceiling panel 1B are formed by joining a plurality of panels 1 described later.
The wall panel 1A is fixed to furring strips 204 (see FIG. 2; C-shaped steel) attached to the frame 202 of the building 200. Meanwhile, the ceiling panel 1B is suspended by a hanging device 205 or the like attached to the frame 203 of the building 200. The fastening to the furring strips 204 and the fastening and suspension by the hanging device 205 or the like will be described later.

<Overview of panel fixing structure 150>
The panel fixing structure 150 will be outlined below using the wall panel 1A as an example.
FIG. 2 is an enlarged cross-sectional view showing an example of the panel fixing structure 150 taken at the circle C in FIG.
In Fig. 2, the horizontal arrow corresponds to the first direction T described in the claims. The vertical arrow perpendicular to the first direction T corresponds to the third direction L described in the claims. The direction perpendicular to the first direction T and the third direction L (the direction perpendicular to the paper surface of Fig. 2) corresponds to the second direction W described in the claims.

The wall panel 1A is formed by joining a plurality of panels 1 along the second direction W. Such wall panels 1A are fixed at the joining positions of the panels 1. In Fig. 2, a panel fixing portion 153 is formed by temporary fixing with a short first screw 151 and permanent fixing with a long second screw 152. The panel fixing portion 153 is formed by fixing the panel 1 to a fixing object. In this case, the fixing object is an L-shaped bracket 206 attached to a furring strip 204. Both the furring strip 204 and the bracket 206 are made of metal.
It is to be noted that a fixing structure may be used in which the panel fixing portion 153 is formed by directly screwing the short first screw 151 and the long second screw 152 into the furring strip 204 without using the bracket 206 .

The lower part of the wall panel 1A is fixed to the floor 207 using a specified fastener (reference number omitted). The specified fastener is one that does not create a gap at the lower part of the wall panel 1A. Meanwhile, the upper part of the wall panel 1A is fixed to the ceiling panel 1B with metal fittings (not shown).

<Overview of the panel joining structure 100 and the panel fixing structure 150>
Based on the overview of the panel fixing structure 150 described above, the overview of the panel joining structure 100 will also be described.
Fig. 3 is a cross-sectional view showing an example of the panel joint structure and the panel fixing structure of Fig. 1, Fig. 3(a) is an explanatory view relating to the panel joint structure, Fig. 3(b) is an explanatory view relating to the panel fixing structure, and Fig. 4 is an enlarged cross-sectional view of the panel joint structure and the panel fixing structure of Fig. 3.

3, the panel 1 is provided with a female joint 12 at one end of the panel body 11 along the second direction W. The panel 1 is provided with a male joint 13 at the other end along the second direction W. The female joint 12 is formed so as to have a concave shape extending along the third direction L. The male joint 13 is also formed so as to have a convex shape extending along the third direction L. The concave and convex shapes will be described later.
3 and 4, when such panels 1 are arranged adjacent to each other in the second direction W and the female joint portion 12 and the male joint portion 13 to be joined are joined, first, one panel 1 is temporarily fixed to the bracket 206 using a short first screw 151. For the temporary fixing, a one-end groove portion 327, which will be described later, functions effectively.
After one panel 1 is temporarily fixed to the bracket 206, the other panel 1 is slid along the second direction W (along the furring strip 204) to join the female joint portion 12 and the male joint portion 13 to be joined. Note that when the female joint portion 12 and the male joint portion 13 are joined, the packing 4 is sandwiched between them.
Finally, the other panel 1 is fixed to the bracket 206 using the long second screw 152 to form a panel fixing portion 153. The long second screw 152 is screwed in so as to penetrate the male joint portion 13 of the other panel 1. The other end groove portion 334 described later functions effectively in this fixing.
This completes the joining and fixing of the panels 1 to each other.

<About the hanging state of the ceiling panel 1B>
The state in which the ceiling panel 1B is suspended by the suspension fixture 205 etc. will be described.
FIG. 5 is a perspective view showing an example of a state in which a plurality of ceiling panels are suspended.

The hanging device 205 is composed of a hanging bolt 208, one end of which is attached to the frame 203 and is length adjustable, and a hook fixture 209 provided on the other end of the hanging bolt 208. The hook fixture 209 is used in a state in which it hooks a C-shaped steel 210, so that the C-shaped steel 210 is suspended by the hanging device 205. A ceiling panel 1B is fixed to the C-shaped steel 210. In this embodiment, the ceiling panel 1B is also fixed using a fixing bracket 211 that is fixed with a rivet.

<Regarding joining and temporary fastening of panels 1 related to the ceiling panel 1B>
A method for temporarily fastening and joining the panel 1 to the C-shaped steel 210 will be described.
6A and 6B are diagrams showing an example of the panel joining structure and panel fixing structure of FIG. 5, in which (a) is an explanatory diagram relating to temporary fastening of one panel, and (b) is an explanatory diagram relating to joining of one panel to another panel.

First, as shown in FIG. 6(a), one panel 1 is placed so that the bottom surface of the C-shaped steel 210 and the top surface of the panel 1 are in contact, and then the panel 1 is temporarily fixed at the female joint 12 using a short first screw 151. Specifically, the short first screw 151 is screwed from the inside to the outside of the recess of the concave female joint 12 to temporarily fix it to the C-shaped steel 210. The one-end groove portion 327 described later functions effectively for the temporary fixation. The panel fixing portion 154 is formed by the temporary fixation.

6(b), the other panel 1 is slid along the underside of the C-shaped steel 210, and the convex male joint portion 13 of the other panel 1 is joined to the female joint portion 12. Specifically, the protruding portion of the convex male joint portion 13 is inserted into the recess of the concave female joint portion 12 to join the protrusions and recesses (a packing 4, described later, is sandwiched during joining).
Although it is possible to use long second screws 152 as in the case of wall panel 1A (see FIG. 2) for permanent fixing, in this embodiment, fixing using fixing brackets 211 (see FIG. 5) is adopted.

<Regarding concave and convex shapes>
Before going into a detailed description, the "concave shape" and "convex shape" of the female joint portion 12, which is concave, and the male joint portion 13, which is convex, will be described.
FIG. 7 is an explanatory diagram of the concave and convex shapes.

In this embodiment, the concave shape 14 is a shape in which the character "CONCAVE" is turned sideways to the right so that the concave portion (groove) of the character "CONCAVE" appears concave along the second direction W shown in Fig. 7. The concave shape 14 is a shape in which the character "CONCAVE" extends along the third direction L. The concave shape 14 includes a pair of concave side portions 14a and a concave bottom 14b. The pair of concave side portions 14a are referred to as "concave both sides" in the claims.
On the other hand, the convex shape 15 is a shape in which the character "convex" is turned sideways to the left so that the protruding portion of the character "convex" appears to protrude along the second direction W. The convex shape 15 is also a shape in which the character "convex" extends along the third direction L. The convex shape 15 is configured to include a pair of convex side portions 15a and a tip 15b. The pair of convex side portions 15a are referred to as "both convex side portions" in the claims.

The directions of the various arrows on the concave shape 14 and the convex shape 15 indicate "inward" and "outward."
That is, the panel first inner side Pin1 indicates the inner side of the concave shape 14 and the convex shape 15 along the first direction T. Also, the panel first outer side Pout1 indicates the outer side of the concave shape 14 along the first direction T.
The panel second inward Pin2 indicates the inward side along the second direction W of the convex shape 15. The panel second outward Pout2 indicates the outward side along the second direction W of the concave shape 14.
A detailed explanation will be given below based on the above-mentioned concave shape 14, convex shape 15, "inner side" and "outer side".

<First example of the panel joining structure 100 and the panel fixing structure 150>
Fig. 8 is a cross-sectional view showing a first example of a panel joint structure and a panel fixing structure, and Fig. 9 is an enlarged cross-sectional view of the first example of the panel joint structure and the panel fixing structure of Fig. 8.
8 and 9, the above-mentioned short first screw 151 and long second screw 152 are omitted from the illustration.

[About the composition of Panel 1]
In FIG. 8, the panel 1 includes a core material 2 and a pair of metal plates 3. The panel 1 has a thickness t of 70 mm along the first direction T (thickness t is an example). The core material 2 is made of, for example, urethane and has a predetermined thickness (about 74 mm here) along the first direction T. The pair of metal plates 3 are, for example, steel plates (Galvalume steel plate (registered trademark) or stainless steel plate, etc.) with a thickness of just under 1 mm, and are attached to the first surface 2a and the second surface 2b of the core material 2, respectively. In other words, the pair of metal plates 3 are arranged so as to sandwich the core material 2. The steel plates are formed into a shape called a flat panel or a lining panel.
The panel 1 has a thickness t along the first direction T of, for example, 40 mm minimum and 300 mm maximum, a width along the second direction W of, for example, 600 mm minimum and 1200 mm maximum, and a total length along the third direction L of, for example, 2000 mm minimum and 12000 mm maximum.

The present invention is characterized by a panel joining structure 100 in which panels 1 having the above-mentioned configuration are arranged adjacent to each other in the second direction W to join the female joint portion 12 and the male joint portion 13 to be joined. In addition, the present invention is characterized by a panel fixing structure 150 using a short first screw 151 and a long second screw 152, which are not shown here.
In the present invention, a packing 4 is used in the panel joint structure 100. The packing 4 is disposed at a predetermined position (the position will be described later). The present invention is also characterized by the sealing structure other than the packing 4.

[Regarding the female joint portion 12]
8, 9 and 7, the female joint 12 is provided at one end of the panel 1 along the second direction W. The female joint 12 is formed such that a concave shape 14 extends along the third direction L.
The female joint portion 12 has one-end joint plate portions 32 formed at the positions of a pair of concave side portions 14a in the concave shape 14. The one-end joint plate portions 32 are portions formed at one end of each of the pair of metal plates 3, and the insides of the one-end joint plate portions 32 are filled with the above-mentioned urethane.

The one-end joint plate portion 32 includes one-end outer plate portions 321 each continuing from the metal plate body 31 of the pair of metal plates 3, one-end first bent portions 322 continuing from the one-end outer plate portions 321, one-end inner plate portion 323 continuing from the one-end first bent portion 322 and located on the first panel inner Pin1 from the one-end outer plate portion 321, one-end second bent portion 324 continuing from the one-end inner plate portion 323, a packing receiving plate portion 325 continuing from the one-end second bent portion 324 and located further on the first panel inner Pin1 from the one-end inner plate portion 323, and a core material embedded portion 326 continuing from the packing receiving plate portion 325 and embedded in the core material 2.

The one-end outer plate portion 321 is formed as a flat plate that is flush with the metal plate body 31. The one-end first bent portion 322 is formed by bending toward the panel first inward Pin1. The one-end first bent portion 322 is formed into a bent shape with a radius of 2.5 mm, for example.
The one-end inner plate portion 323 is formed as a flat plate inclined with respect to the one-end outer plate portion 321 such that the angle between the one-end first bent portion 322 and the one-end inner plate portion 323 is, for example, 4 degrees (the angle is an example).

The one-end groove 327 is disposed in the vicinity of the one-end second bent portion 324 away from the one-end first bent portion 322. The one-end groove 327 is formed in a groove shape that is recessed toward the panel first outer side Pout1 and extends along the third direction L. The one-end groove 327 is formed in a shape such that the groove bottom describes an arc. The one-end groove 327 is formed in order to suppress slippage (escape) of the tip of the threaded portion of the short first screw 151.
The one-end groove portion 327 is formed with a groove width and depth such that when the short first screw 151 is screwed in, the screw head (the head of a so-called round screw) does not protrude from the one-end inner plate portion 323 or protrudes slightly.
Needless to say, if slippage (escape) of the threaded tip of the short first screw 151 can be prevented in the one-end groove 327 during the temporary fastening, workability can be improved.
The one-end groove portion 327 is formed at the same time as the one-end first bent portion 322, the one-end second bent portion 324, and the core material embedded portion 326 are formed by bending.

The second bent portion 324 at one end is a bent portion that positions the packing receiving plate portion 325 perpendicular to the metal plate body 31 with a gap therebetween. The packing receiving plate portion 325 is formed as a flat plate that can receive approximately half of the width of the packing 4. The core material embedded portion 326 is formed by bending the end of the packing receiving plate portion 325 short. The core material embedded portion 326 is formed so as to be embedded in the core material one end 22.

The female joint portion 12 has a first seal portion 221 provided at the position of the recessed bottom 14b of the recessed shape 14. This first seal portion 221 is provided in a part (center portion) of the core material one end 22 of the core material 2. The core material one end 22 is one end along the second direction W of the core material 2 that is continuous with the core material body 21.
The first seal portion 221 is formed in a shape that protrudes in an arc shape toward the second outer side Pout2 of the panel. Specifically, it is formed in a substantially semicylindrical shape. The first seal portion 221 is formed in a seal portion in which the entire curved surface is in close contact with the second seal portion 231 described later and which does not allow gas or liquid to pass through. Also, it is formed in a portion that is in sliding contact with the second seal portion 231.
The first seal portion 221 is not limited to a semi-cylindrical shape. In other words, the first seal portion 221 may have a shape interchangeable with that of a second seal portion 231, which will be described later.
At a position Pout1 on the first outer side of the panel from the first seal portion 221 at the core one end 22, a flat surface capable of receiving approximately the remaining half of the width direction of the packing 4 is formed.

[Regarding male joint 13]
8, 9 and 7, the male joint 13 is provided at the other end of the panel 1 along the second direction W. The male joint 13 is formed such that a convex shape 15 extends along the third direction L.
The male joint portion 13 has an opposite end joint plate portion 33 formed at the position of a pair of convex side portions 15a of the convex shape 15. The opposite end joint plate portion 33 is a portion formed at each of the opposite ends of the pair of metal plates 3, and the inside is filled with the above-mentioned urethane.

The other end joint plate portion 33 is composed of an other end step portion 331 that is continuous with the metal plate body 31 and has a stepped shape on the first inner side of the panel Pin1, an other end inner plate portion 332 that is continuous with the other end step portion 331, and a packing pressing bend portion 333 that is continuous with the other end inner plate portion 332.

The other end step 331 is formed in a generally crank shape. The other end joint plate 33 in Fig. 8 and Fig. 9 is formed in a first type such that the other end step 331 secures a predetermined first distance S1 (here, 10 mm) from the one end first bent portion 322 of the female joint portion 12 (a second type different from this first type will be described later with reference to Figs. 10 and 11).
The other end inner plate portion 332 is formed as a flat plate with an angle of, for example, 4 degrees between the surface of the metal plate body 31 that is hypothetically extended and the other end step portion 331 (the angle is an example). The other end inner plate portion 332 is formed to have a tapered surface that comes into surface contact with the one end inner plate portion 323 of the female joint portion 12 (a drawing showing the tapered surfaces of the one end inner plate portion 323 and the other end inner plate portion 332 in surface contact with each other is omitted). The other end inner plate portion 332 has an other end groove portion 334 formed therein.

The other end groove 334 is disposed within the range of the first interval S1 in the other end inner plate portion 332, and is formed in a shape recessed toward the panel first inward Pin1, and is formed in a groove shape extending along the third direction L. The other end groove 334 is formed together with the other end step portion 331 and the packing pressing bend portion 333 during bending processing, similar to the one end groove 327 of the female joint portion 12. The other end groove 334 is also formed in a shape in which the groove bottom describes an arc, similar to the one end groove 327. The other end groove 334 is formed to suppress slippage (escape) of the tip of the threaded portion of the long second screw 152.
The other end groove portion 334 is formed with a groove width and depth such that when the long second screw 152 is screwed in, the screw head (the head of a so-called countersunk screw) does not protrude from the other end inner plate portion 332 or protrudes slightly.
Needless to say, if slippage (escape) of the tip of the threaded portion of the long second screw 152 is prevented in the other end groove 334 during the above-mentioned permanent fixation, workability can be improved.

The packing pressing bent portion 333 is formed so that the packing 4 can be sandwiched and pressed between the packing receiving plate portion 325 of the female joint portion 12. The packing pressing bent portion 333 is formed into a bent shape with a radius of 3 mm, for example. The packing pressing bent portion 333 is formed so that a part of it is embedded in the core material 2 (embedded in the other end 23 of the core material).

The male joint 13 has a second seal portion 231 provided at the position of the tip 15b of the convex shape 15. This second seal portion 231 is provided in a part (center portion) of the other end 23 of the core material 2. The other end 23 of the core material is the other end along the second direction W of the core material 2, which is continuous with the core material body 21.
The second seal portion 231 is formed in a portion recessed in an arc shape on the panel second inner Pin 2. Specifically, it is formed in a shape having a curved surface that matches the substantially semicylindrical (semi-cylindrical) first seal portion 221 in the female joint 12. The second seal portion 231 is formed in a seal portion in which the entire curved surface is in close contact with the first seal portion 221 and which makes it difficult for gas or liquid to pass through.
The second seal portion 231 may have a shape interchangeable with that of the first seal portion 221 .
At a position Pout1 on the first outer side of the panel from the second seal portion 231 at the other end 23 of the core material, a flat surface capable of receiving approximately the remaining half of the width direction of the packing 4 is formed.

[Regarding packing 4]
The packing 4 is an elastic sealing member, and is formed so as to have a rectangular cross-sectional shape and extend along the third direction L. The packing 4 employed here has a thickness (length along the second direction W) of, for example, 5 mm and a width (length along the first direction T) of, for example, 15 mm. The packing 4 is disposed at a position toward the first outer side Pout1 of the panel relative to the first seal portion 221 and the second seal portion 231, and therefore two packings 4 are used for each joint between the panels 1.
It should be noted that, once the joining of the panels 1 is completed, the gasket 4 is crushed from the aforementioned thickness of 5 mm to 3 mm (the double-dashed line indicates the shape before being crushed).

<Effects of the First Example>
As can be seen from the first example of the panel joint structure 100 and the panel fixing structure 150, the one end groove 327 is formed in the female joint portion 12, and the other end groove 334 is formed in the male joint portion 13, so that these grooves can suppress slippage (escape) of the tip of the screw portion. This allows temporary fixing with the short first screw 151 and final fixing with the long second screw 152 to be performed smoothly. This has the effect of improving workability.
Furthermore, with regard to the core material 2, the first seal portion 221 is formed in a shape that protrudes in an arc shape, and the second seal portion 231 is formed in a portion that is recessed in an arc shape, so that even if the axis of one panel 1 along the second direction W is slightly inclined relative to the axis of the other panel 1 along the second direction W when the panels 1 are joined together, the curved surfaces of the first seal portion 221 and the second seal portion 231 come into contact with each other, and by moving the other panel 1 so that the aforementioned axes are coaxial, the aforementioned curved surfaces come into sliding contact with each other, and as a result, the joining of the panels 1 can be completed. This has the effect of improving workability.
In addition, the first seal portion can be secured by contact between the first seal portion 221 and the second seal portion 231, and the second and third seal portions can be secured by crushing the two packings 4. Therefore, there is also an effect that the panel joining structure 100 and the panel fixing structure 150 having high airtightness and watertightness can be realized.

<Second example of the panel joining structure 100 and the panel fixing structure 150>
Fig. 10 is a cross-sectional view showing a second example of a panel joint structure and a panel fixing structure, and Fig. 11 is an enlarged cross-sectional view of the second example of the panel joint structure and the panel fixing structure of Fig. 10 .
As in the first example, the short first screws 151 and the long second screws 152 are omitted from illustration in FIGS.

The second example is suitable for application to, for example, ceiling panel 1B, and differs from the first example in that the other end joint plate portion 33 of the male joint portion 13 is formed in the second type described below, and that the first seal portion 221 and the second seal portion 231 of the core material 2 are formed in a steeper curve than in the first example.

[Regarding the female joint portion 12]
10, 11 and 7, the female joint 12 is provided at one end of the panel 1 along the second direction W. The female joint 12 is formed such that a concave shape 14 extends along the third direction L.
The female joint portion 12 has one-end joint plate portions 32 formed at the positions of a pair of concave side portions 14a in the concave shape 14. The one-end joint plate portions 32 are portions formed at one end of each of the pair of metal plates 3, and the insides of the one-end joint plate portions 32 are filled with the above-mentioned urethane.

The one-end joining plate portion 32 includes a one-end outer plate portion 321, a one-end first bent portion 322, a one-end inner plate portion 323, a one-end second bent portion 324, a packing receiving plate portion 325, and a core material embedded portion 326. A one-end groove portion 327 is formed in the one-end inner plate portion 323.

The female joint 12 has a first seal portion 221 at the position of the concave bottom 14b of the concave shape 14. This first seal portion 221 is provided in a part (center) of the core material one end 22 of the core material 2. The first seal portion 221 is formed in a shape that protrudes in an arc shape toward the second outer side Pout2 of the panel. Specifically, it is formed in an approximately kamaboko shape (approximately semi-cylindrical) with a smaller radius of curvature than the first example.

[Regarding male joint 13]
10, 11 and 7, the male joint 13 is provided at the other end of the panel 1 along the second direction W. The male joint 13 is formed such that a convex shape 15 extends along the third direction L.
The male joint portion 13 has an opposite end joint plate portion 33 formed at the position of a pair of convex side portions 15a of the convex shape 15. The opposite end joint plate portion 33 is a portion formed at each of the opposite ends of the pair of metal plates 3, and the inside is filled with the above-mentioned urethane.

The other end joint plate portion 33 is configured to include an other end step portion 331, an other end inner plate portion 332, and a packing pressing bend portion 333. The other end joint plate portion 33 of the second example is formed in a second type in which the other end step portion 331 secures a second distance S2 (here, 3 mm) narrower than the above-mentioned first distance S1 (here, 10 mm) with respect to the one end first bend portion 322 of the female joint portion 12. Also, in the other end joint plate portion 33 of the second example, the other end inner plate portion 332 is formed in a shape without a recess (the other end groove portion 334 as described above is not formed).

The male joint 13 has a second seal portion 231 at the tip 15b of the convex shape 15. This second seal portion 231 is provided in a part (central part) of the other end 23 of the core material 2. The second seal portion 231 is formed in a part that is recessed in an arc shape on the second inner Pin2 of the panel. Specifically, it is formed into a shape having a curved surface that matches the roughly semi-cylindrical (roughly semi-cylindrical) first seal portion 221 in the female joint 12 of the second example.

<Effects of the second example>
As can be seen from the second example of the panel joint structure 100 and the panel fixing structure 150, the one-end groove 327 is formed in the female joint portion 12, and this one-end groove 327 can suppress slippage (escape) of the tip of the screw portion. This allows the short first screw 151 to be temporarily fastened smoothly. This has the effect of improving workability.
As in the first example, the first seal portion 221 of the core material 2 is formed in a shape that protrudes in an arc shape, and the second seal portion 231 is formed in a portion that is recessed in an arc shape, so that even if the axis of one panel 1 along the second direction W is slightly inclined relative to the axis of the other panel 1 along the second direction W when the panels 1 are joined together, the curved surfaces of the first seal portion 221 and the second seal portion 231 come into contact with each other, and by moving the other panel 1 so that the aforementioned axes are coaxial, the aforementioned curved surfaces come into sliding contact with each other, and as a result, the joining of the panels 1 can be completed. This has the effect of improving workability.
In addition, the first seal portion can be secured by contact between the first seal portion 221 and the second seal portion 231, and the second and third seal portions can be secured by crushing the two packings 4. Therefore, there is also an effect that the panel joining structure 100 and the panel fixing structure 150 having high airtightness and watertightness can be realized.

<Third example of the panel joining structure 100 and the panel fixing structure 150>
Fig. 12 is a cross-sectional view showing a third example of a panel joint structure and a panel fixing structure, and Fig. 13 is an enlarged cross-sectional view of the panel joint structure and the panel fixing structure of Fig. 12 which is the third example.
As in the first and second examples, the short first screws 151 and the long second screws 152 are omitted from illustration in FIGS. 12 and 13 as well.

The third example differs from the first example in that the first seal portion 221 and the second seal portion 231 of the core material 2 are formed with a more gently curved surface than in the first example, and the thickness t of the panel 1 is t = 150 mm.

[Regarding the female joint portion 12]
12, 13 and 7, the female joint 12 is provided at one end of the panel 1 along the second direction W. The female joint 12 is formed such that a concave shape 14 extends along the third direction L.
The female joint portion 12 has one-end joint plate portions 32 formed at the positions of a pair of concave side portions 14a in the concave shape 14. The one-end joint plate portions 32 are portions formed at one end of each of the pair of metal plates 3, and the insides of the one-end joint plate portions 32 are filled with the above-mentioned urethane.

The one-end joining plate portion 32 includes a one-end outer plate portion 321, a one-end first bent portion 322, a one-end inner plate portion 323, a one-end second bent portion 324, a packing receiving plate portion 325, and a core material embedded portion 326. A one-end groove portion 327 is formed in the one-end inner plate portion 323.

The female joint 12 has a first seal portion 221 at the position of the concave bottom 14b of the concave shape 14. This first seal portion 221 is provided in a part (central part) of the core material one end 22 of the core material 2. The first seal portion 221 is formed in a shape that protrudes in an arc toward the second outer side Pout2 of the panel. Specifically, it is formed in a shape having an arc with a larger radius of curvature than the first example.

[Regarding male joint 13]
12, 13 and 7, the male joint 13 is provided at the other end of the panel 1 along the second direction W. The male joint 13 is formed such that a convex shape 15 extends along the third direction L.
The male joint portion 13 has an opposite end joint plate portion 33 formed at the position of a pair of convex side portions 15a of the convex shape 15. The opposite end joint plate portion 33 is a portion formed at each of the opposite ends of the pair of metal plates 3, and the inside is filled with the above-mentioned urethane.

The other end joint plate portion 33 is composed of an other end step portion 331, an other end inner plate portion 332, and a packing pressing bend portion 333. The other end joint plate portion 33 of the second example is formed as a first type in which the other end step portion 331 ensures the above-mentioned first distance S1 (here, 10 mm) with respect to the one end first bend portion 322 of the female joint portion 12. The other end joint plate portion 33 is formed with an other end groove portion 334.

The male joint 13 has a second seal portion 231 at the tip 15b of the convex shape 15. This second seal portion 231 is provided in a part (central part) of the other end 23 of the core material 2. The second seal portion 231 is formed in a part that is recessed in an arc shape on the second inner Pin2 of the panel. Specifically, it is formed in a shape that has a curved surface that matches the arc-shaped first seal portion 221 in the female joint 12 of the third example.

<Effects of the third example>
As can be seen from the third example of the panel joint structure 100 and the panel fixing structure 150, the female joint portion 12 is formed with the one end groove portion 327, and the male joint portion 13 is formed with the other end groove portion 334, so that these grooves can suppress slippage (escape) of the screw tip. This allows temporary fixing with the short first screw 151 and final fixing with the long second screw 152 to be performed smoothly. This has the effect of improving workability.
As in the first example, the first seal portion 221 of the core material 2 is formed in a shape that protrudes in an arc shape, and the second seal portion 231 is formed in a portion that is recessed in an arc shape, so that even if the axis of one panel 1 along the second direction W is slightly inclined relative to the axis of the other panel 1 along the second direction W when the panels 1 are joined together, the curved surfaces of the first seal portion 221 and the second seal portion 231 come into contact with each other, and by moving the other panel 1 so that the aforementioned axes are coaxial, the aforementioned curved surfaces come into sliding contact with each other, and as a result, the joining of the panels 1 can be completed. This has the effect of improving workability.
In addition, the first seal portion can be secured by contact between the first seal portion 221 and the second seal portion 231, and the second and third seal portions can be secured by crushing the two packings 4. Therefore, there is also an effect that the panel joining structure 100 and the panel fixing structure 150 having high airtightness and watertightness can be realized.

<About temporary fastening and permanent fastening>
FIG. 14 is a diagram showing an example of a panel fixing structure, where (a) is an explanatory diagram relating to temporary fixing, and (b) is an explanatory diagram relating to full fixing.

As shown in FIG. 14(a), a short first screw 151 can be screwed into one end groove 327 (the one end groove 327 closer to the fixing object) of the female joint 12 to temporarily secure the panel to the fixing object. After the panels 1 are joined together, as shown in FIG. 14(b), a long second screw 152 can be screwed into the other end groove 334 (the other end groove 334 farther from the fixing object) of the male joint 13 to permanently secure the panel to the fixing object. The fixing object is formed with a panel fixing portion 153, as shown in FIG. 2, for example.

<Summary>
As has been described above with reference to FIGS. 1 to 14, by employing the panel joining structure 100 and the panel fixing structure 150 described above, it is possible to achieve the effect of improving workability.

Although one embodiment of the present invention and other embodiments have been described, the present invention is not limited to these. Furthermore, the effects described in the embodiments are merely a list of the most favorable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiments.

In the above embodiment, the protruding portion of the male joint 13, which is a convex shape, is inserted into the recess of the female joint 12, which is a concave shape, to join the convex and concave portions, but the present invention is not limited to this. For example, the structure may be such that locking portions are provided on the concave and convex shapes, and the locking portions hook together when inserted.

Although not specifically shown in the above embodiment, a sealant is filled in a predetermined gap between the first bend 322 at one end of the female joint 12 and the step 331 at the other end of the male joint 13.

The panel joint structure to which the present invention is applied is sufficient if it has the following configuration, and can take a variety of different embodiments.
That is, (1) a panel joint structure to which the present invention is applied (for example, the panel joint structure 100 in FIG. 8 and FIG. 9 ) is
A panel (e.g., panel 1 in FIGS. 8 and 9 ) is configured including a core material (e.g., core material 2 in FIGS. 8 and 9 ) having a predetermined thickness along a first direction (e.g., first direction T in FIGS. 8 and 9 ), and a pair of metal plates (e.g., metal plates 3 in FIGS. 8 and 9 ) attached to a first surface and a second surface of the core material, respectively;
At one end of the panel along a second direction (e.g., second direction W in FIGS. 8 and 9 ) perpendicular to the first direction, a female joint (e.g., female joint 12 in FIGS. 8 and 9 ) is provided, the female joint having a concave shape (e.g., concave shape 14 in FIG. 7 ) extending along a third direction (e.g., third direction L in FIGS. 8 and 9 ) perpendicular to the first direction and the second direction;
The other end of the panel along the second direction is provided with a male joint (e.g., male joint 13 in FIGS. 8 and 9 ) having a convex shape (e.g., convex shape 15 in FIG. 7 ) extending along the third direction;
A panel joining structure in which the panels are arranged adjacent to each other in the second direction and the female joint portion and the male joint portion to be joined are joined,
The female joint portion is formed by forming one-end joint plate portions (for example, one-end joint plate portions 32 in FIG. 9 ) on the pair of metal plates at positions on both sides of the recess in the recess shape,
The one-end joining plate portion includes one-end outer plate portions (e.g., one-end outer plate portion 321 in FIG. 9 ) continuing from the metal plate main body (e.g., metal plate main body 31 in FIG. 9 ) of the pair of metal plates, one-end first bent portion (e.g., one-end first bent portion 322 in FIG. 9 ) continuing from the one-end outer plate portion, and one-end inner plate portion (e.g., one-end inner plate portion 323 in FIG. 9 ) continuing from the one-end first bent portion and located on a panel first inner side (e.g., panel first inner side Pin1 in FIG. 7 ) that is inward along the first direction from the one-end outer plate portion, and a one-end groove portion (e.g., one-end groove portion 327 in FIGS. 8 and 9 ) is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is characterized in that it is recessed toward a first outer side of the panel (e.g., the first outer side of the panel Pout1 in Figure 7), which is the outer side along the first direction, and is formed in a groove shape extending along the third direction.

According to the present invention, since a one-end groove is formed in the female joint, when temporarily fastening a panel with a screw, for example, by inserting the tip of the screw into the one-end groove and screwing it in, the one-end groove can prevent the tip of the screw from slipping (running away). This allows the aforementioned temporary fastening with the screw to be performed smoothly. This has the effect of improving workability.

In addition, (2) the panel joint structure to which the present invention is applied is the panel joint structure of (1),
The male joint portion to be joined to the female joint portion has other end joint plate portions (e.g., other end joint plate portions 33 in FIGS. 8 and 9 ) formed on the pair of metal plates at the positions of both sides of the convex shape,
The other end joining plate portion is characterized in that it is composed of an other end step portion (e.g., the other end step portion 331 in Figure 9) that is continuous with the metal plate main body and has a step shape toward the first inward side of the panel, and an other end inner plate portion (e.g., the other end inner plate portion 332 in Figure 9) that is continuous with the other end step portion, and that the other end step portion is formed of either a first type that ensures a predetermined first distance (e.g., the first distance S1 in Figures 8 and 9) with respect to the one end first bending portion of the female joint portion, or a second type that ensures a second distance (e.g., the second distance S2 in Figures 10 and 11) narrower than the first distance.

According to the present invention, it is possible to provide two types of male joints: a first type male joint in which the other end step portion of the male joint secures a predetermined first distance with respect to the first bent portion at one end of the female joint, and a second type male joint in which a second distance narrower than the first distance is secured. This allows the user to select whether or not to use a screw to fasten the male joint. For example, with the first type male joint, a predetermined first distance is secured and the other end groove portion described below can be formed, so that the male joint can be smoothly fastened using a screw in the other end groove portion. This has the effect of contributing to improved workability.

In addition, (3) the panel joint structure to which the present invention is applied is the panel joint structure of (2),
When the other end joining plate portion is formed in the first type, the other end inner plate portion of the first type is formed with an other end groove portion (e.g., the other end groove portion 334 in FIGS. 8 and 9 ),
The other end groove portion is formed in a groove shape that is recessed within the first interval toward the first inner side of the panel and extends along the third direction.

According to the present invention, the male joint also has an other-end groove similar to the one-end groove of the female joint. Therefore, when a panel is to be fixed with a screw, for example, the tip of the screw thread is inserted into the other-end groove and screwed in, and the other-end groove prevents the tip of the screw thread from slipping (running away). This allows the aforementioned fixing with the screw to be performed smoothly. This has the effect of improving workability.

In addition, (4) the panel joint structure to which the present invention is applied is the panel joint structure of (1),
The female joint is formed, at a concave bottom position of the concave shape, with either a first seal portion (e.g., first seal portion 221 in FIGS. 8 and 9 ) protruding in an arc shape toward the second panel outer side (e.g., panel second outer side Pout2 in FIG. 7 ), which is the outer side along the second direction, at a part of one end of the core material (e.g., core material one end 22 in FIG. 8 and FIG. 9 ) of the core material along the second direction, or a second seal portion (e.g., second seal portion 231 in FIG. 8 and FIG. 9 ) recessed in an arc shape toward the second panel inner side (e.g., panel second inner side Pin2 in FIG. 7 ), which is the inner side along the second direction,
The male joint portion, which is a joining partner of the female joint portion, is characterized in that the other of the first seal portion and the second seal portion is formed in a part of the other end of the core material (e.g., the other end 23 of the core material in Figures 8 and 9) along the second direction at the tip position of the convex shape.

According to the present invention, the core material has a first seal portion formed in a shape that protrudes in an arc shape, and a second seal portion formed in a portion that is recessed in an arc shape, so that even if the axis of one panel along the second direction of the other panel is slightly inclined with respect to the axis of the other panel along the second direction when the panels are joined together, the curved surfaces of the first seal portion and the second seal portion come into contact with each other, and by moving the other panel so that the aforementioned axes are coaxial, the aforementioned curved surfaces come into sliding contact with each other, and as a result, the joining of the panels can be completed. This has the effect of improving workability.
In addition, according to the present invention, the contact between the first seal portion and the second seal portion ensures a seal portion at the core material, which contributes to the realization of a panel joining structure with high airtightness and watertightness and a panel fixing structure described later.

In addition, (5) the panel joint structure to which the present invention is applied is the panel joint structure of (4),
A gasket (e.g., gasket 4 in Figures 8 and 9) is provided between the female joint and the male joint to be joined, and at a position first outside the panel than the first seal portion and the second seal portion.

According to the present invention, since the packing is provided at a position on the first outer side of the panel than the first and second seal parts of the core material, the packing is crushed during joining, and a second and third seal part can be secured in addition to the core material. This has the effect of contributing to the realization of a panel joining structure with high airtightness and watertightness, and a panel fixing structure described later.

(6) The panel fixing structure to which the present invention is applied is
The panel includes a core material having a predetermined thickness along a first direction, and a pair of metal plates attached to a first surface and a second surface of the core material, respectively;
A female joint portion having a concave shape extending along a third direction perpendicular to the first direction is provided at one end of the panel along a second direction perpendicular to the first direction,
The other end of the panel along the second direction is provided with a male joint portion having a convex shape extending along the third direction,
A panel fixing structure (e.g., the panel fixing structure 150 in FIG. 4 ) is a panel fixing structure that fixes the panel to a fixing object and forms a panel fixing portion (e.g., the panel fixing portion 153 in FIG. 4 ) by using a panel joining structure that joins the female joint portion and the male joint portion to be joined by arranging the panels next to each other in the second direction,
The female joint portion is formed by forming one-end joint plate portions on the pair of metal plates at positions on both sides of the recess in the recess shape,
the one-end joining plate portion includes a one-end outer plate portion continuing from the metal plate main body of each of the pair of metal plates, a one-end first bent portion continuing from the one-end outer plate portion, and a one-end inner plate portion continuing from the one-end first bent portion and positioned on a first inner side of the panel that is more inward in the first direction than the one-end outer plate portion, and a one-end groove portion is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is recessed toward a first outer side of the panel, which is an outer side along the first direction, and is formed in a groove shape extending along the third direction,
The panel fixing portion is characterized in that it is formed by screwing a first screw into the one end groove portion to fix the female joint portion to the fixing object.

According to the present invention, since a one-end groove is formed in the female joint, when temporarily fastening a panel with a first screw (bolt), for example, by screwing the tip of the threaded portion of the first screw into the one-end groove, the one-end groove can prevent the tip of the threaded portion from slipping (running away). This allows the aforementioned temporary fastening with the first screw to be performed smoothly. This has the effect of improving workability.

In addition, (7) the panel fixing structure to which the present invention is applied is the panel fixing structure of (6),
The male joint portion, which is a joint partner of the female joint portion, has other end joint plate portions formed on the pair of metal plates at both sides of the convex shape,
the other end joining plate portion includes an other end step portion that is continuous with the metal plate body and has a step shape toward the first inner side of the panel, and an other end inner plate portion that is continuous with the other end step portion, and the other end step portion is formed so as to secure a predetermined first distance with respect to the one end first bent portion of the female joint portion,
The other end inner plate portion is formed with an other end groove portion,
The other end groove portion is formed in a groove shape recessed within the range of the first interval toward the first inward side of the panel and extending along the third direction,
The panel fixing portion is further characterized in that it is formed by screwing a second screw into the other end groove portion to fix the male joint portion to the fixing object.

According to the present invention, the male joint also has an other-end groove similar to the one-end groove of the female joint. Therefore, when a panel is to be fixed with a second screw, for example, the tip of the second screw is inserted into the other-end groove and screwed in, and the other-end groove prevents the tip of the screw from slipping (running away). This allows the aforementioned fixing with the second screw to be performed smoothly. This has the effect of improving workability.

1: Panel, 1A: Wall panel, 1B: Ceiling panel, 11: Panel body, 12: Female joint, 13: Male joint, 14: Concave shape, 14a: Concave side, 14b: Concave bottom, 15: Convex shape, 15a: Convex side, 15b: Tip, 2: Core, 2a: First surface, 2b: Second surface, 21: Core body, 22: One end of core, 23: Other end of core, 3: Metal plate, 31: Metal plate body, 32: One end joint plate, 33: Other end joint plate, 321: One end outer plate, 322: One end first bent portion, 323: One end inner plate, 324: One end second bent portion, 325: Packing receiving plate, 326: Core buried portion, 327: One end groove 331: other end step portion, 332: other end inner plate portion, 333: packing pressing bend portion, 334: other end groove portion 4: packing, 100: panel joining structure, 150: panel fixing structure, 151: short first screw (first screw), 152: long second screw (second screw), 153: panel fixing portion, 154: panel fixing portion 200: building, 201: prefabricated refrigerator, 202, 203: frame, 204: furring strip, 205: hanging device, 206: bracket, 207: floor, 208: hanging bolt, 209: hook fixing device, 210: C-shaped steel, 211: fixing metal T: first direction, W: second direction, L: third direction, Pin1: first inner side of panel, Pout1: first outer side of panel, Pin2: second inner side of panel, Pout2: second outer side of panel

Claims (7)

The panel includes a core material having a predetermined thickness along a first direction, and a pair of metal plates attached to a first surface and a second surface of the core material, respectively;
A female joint portion having a concave shape extending along a third direction perpendicular to the first direction is provided at one end of the panel along a second direction perpendicular to the first direction,
The other end of the panel along the second direction is provided with a male joint portion having a convex shape extending along the third direction,
A panel joining structure in which the panels are arranged adjacent to each other in the second direction and the female joint portion and the male joint portion to be joined are joined,
The female joint portion is formed by forming one-end joint plate portions on the pair of metal plates at positions on both sides of the recess in the recess shape,
the one-end joining plate portion includes a one-end outer plate portion continuing from the metal plate main body of each of the pair of metal plates, a one-end first bent portion continuing from the one-end outer plate portion, and a one-end inner plate portion continuing from the one-end first bent portion and positioned on a first inner side of the panel that is more inward in the first direction than the one-end outer plate portion, and a one-end groove portion is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is recessed toward a first outer side of the panel, which is an outer side along the first direction, and is formed in a groove shape extending along the third direction.
Panel joint structure. The male joint portion, which is a joint partner of the female joint portion, has other end joint plate portions formed on the pair of metal plates at both sides of the convex shape,
the other end joining plate portion includes an other end step portion that is continuous with the metal plate body and has a step shape toward the first inner side of the panel, and an other end inner plate portion that is continuous with the other end step portion, and the other end step portion is formed in either one of a first type that ensures a predetermined first gap with respect to the one end first bent portion of the female joint portion, and a second type that ensures a second gap narrower than the first gap;
The panel joint structure according to claim 1 . When the other end joining plate portion is formed of the first type, the other end inner plate portion of the first type is formed with an other end groove portion,
The other end groove portion is formed in a groove shape recessed within the range of the first interval toward the first inward side of the panel and extending along the third direction.
The panel joint structure according to claim 2. The female joint is formed, at a concave bottom position of the concave shape, with either a first seal portion that protrudes in an arc shape toward the second outer side of the panel, which is the outer side along the second direction, or a second seal portion that is recessed in an arc shape toward the second inner side of the panel, which is the inner side along the second direction, at a part of one end of the core material along the second direction;
The male joint portion, which is a joint partner of the female joint portion, is formed with the other of the first seal portion and the second seal portion at a tip position of the convex shape in a part of the other end of the core material along the second direction of the core material.
The panel joint structure according to claim 1 . a packing is provided between the female joint portion and the male joint portion to be joined and at a position first outside the panel relative to the first seal portion and the second seal portion;
The panel joint structure according to claim 4. The panel includes a core material having a predetermined thickness along a first direction, and a pair of metal plates attached to a first surface and a second surface of the core material, respectively;
A female joint portion having a concave shape extending along a third direction perpendicular to the first direction is provided at one end of the panel along a second direction perpendicular to the first direction,
The other end of the panel along the second direction is provided with a male joint portion having a convex shape extending along the third direction,
A panel fixing structure in which the panels are arranged adjacent to each other in the second direction and a panel joining structure is used to join the female joint portion and the male joint portion to be joined, thereby fixing the panel to a fixing object to form a panel fixing portion,
The female joint portion is formed by forming one-end joint plate portions on the pair of metal plates at positions on both sides of the recess in the recess shape,
the one-end joining plate portion includes a one-end outer plate portion continuing from the metal plate main body of each of the pair of metal plates, a one-end first bent portion continuing from the one-end outer plate portion, and a one-end inner plate portion continuing from the one-end first bent portion and positioned on a first inner side of the panel that is more inward in the first direction than the one-end outer plate portion, and a one-end groove portion is formed at a predetermined position of the one-end inner plate portion,
The one end groove portion is recessed toward a first outer side of the panel, which is an outer side along the first direction, and is formed in a groove shape extending along the third direction,
The panel fixing portion is formed by screwing a first screw into the one end groove portion to fix the female joint portion to the fixing object.
Panel fixing structure. The male joint portion, which is a joint partner of the female joint portion, has other end joint plate portions formed on the pair of metal plates at both sides of the convex shape,
the other end joining plate portion includes an other end step portion that is continuous with the metal plate body and has a step shape toward the first inner side of the panel, and an other end inner plate portion that is continuous with the other end step portion, and the other end step portion is formed so as to secure a predetermined first distance with respect to the one end first bent portion of the female joint portion,
The other end inner plate portion is formed with an other end groove portion,
The other end groove portion is formed in a groove shape recessed within the range of the first interval toward the first inward side of the panel and extending along the third direction,
The panel fixing portion is further formed by screwing a second screw into the other end groove portion to fix the male joint portion to the fixing object.
The panel fixing structure according to claim 6.

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