Display board

Abstract

In a display board including a front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, and an intermediate board sandwiched between the front board and the back board, a display board capable of more easily integrating the front board, the back board, and the intermediate board is provided. 【Solution means】In the display board 1, the front board 3, the back board 4, and the intermediate board 5 are integrated by the magnetic attractive force generated between the permanent magnet 6 and the permanent magnet 7. Further, in the display board 1, the first protruding portion 6a of the permanent magnet 6 fixed to the front board 3 protrudes from the back surface of the front board 3 to the back side, and the second protruding portion 7a of the permanent magnet 7 fixed to the back board 4 protrudes from the surface of the back board 4 to the front side. At the same time, a first engagement hole 5d with which the first protruding portion 6a engages and a second engagement hole 5e with which the second protruding portion 7a engages are formed in the intermediate board 5.

Description

Technical Field

[0001] The present invention relates to a display board.

Background Art

[0002] Conventionally, a medium display board for displaying a medium such as a photograph has been known (see, for example, Patent Document 1). The medium display board described in Patent Document 1 includes two boards made of a transparent or translucent plate such as an acrylic resin or glass, and magnets embedded in the two boards. The medium is disposed between the two boards. In the medium display board described in Patent Document 1, the medium is held between the two boards by a magnetic attractive force generated between the magnet embedded in one board and the magnet embedded in the other board. Therefore, in this medium display board, it is possible to easily replace the medium as compared with the case where the medium is held between two boards fixed with screws.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The inventor of the present application has been developing a display board for displaying a predetermined exhibit or the like. The display board under development includes a front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, and an intermediate board sandwiched between the front board and the back board. The inventor of the present application has decided to integrate the front board, the back board, and the intermediate board by the magnetic attractive force generated between a permanent magnet fixed to the front board and a permanent magnet fixed to the back board in order to easily attach and detach the intermediate board and the like in the display board under development. In this display board under development, it is preferable that the front board, the back board, and the intermediate board can be integrated more easily.

[0005] Therefore, an object of the present invention is to provide a display board including a front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, and an intermediate board sandwiched between the front board and the back board, which can integrate the front board, the back board, and the intermediate board more easily.

Means for Solving the Problems

[0006] To solve the above problems, the display board of the present invention includes a front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, an intermediate board sandwiched between the front board and the back board, a front-side permanent magnet which is a permanent magnet fixed to the front board, and a back-side permanent magnet which is a permanent magnet fixed to the back board. Magnet fixing holes for fixing the front-side permanent magnet are formed in the front board, magnet fixing holes for fixing the back-side permanent magnet are formed in the back board, a part of the front-side permanent magnet is a first protruding portion protruding rearward from the back surface of the front board, a part of the back-side permanent magnet is a second protruding portion protruding forward from the front surface of the back board, a first engaging hole for engaging with the first protruding portion and a second engaging hole for engaging with the second protruding portion are formed in the intermediate board, and the front board, the back board, and the intermediate board are integrated by the magnetic attractive force generated between the front-side permanent magnet and the back-side permanent magnet.

[0007] In the display board of the present invention, the front board, the back board, and the intermediate board are integrated by the magnetic attractive force generated between the front - side permanent magnet and the back - side permanent magnet. Therefore, in the present invention, for example, compared with the case where the front board, the back board, and the intermediate board are integrated by fixing them with screws, it is possible to easily integrate the front board, the back board, and the intermediate board.

[0008] Further, in the present invention, the first protruding portion of the front - side permanent magnet fixed to the front board protrudes rearward from the back surface of the front board, and the second protruding portion of the back - side permanent magnet fixed to the back board protrudes forward from the front surface of the back board. At the same time, on the intermediate board, a first engaging hole with which the first protruding portion engages and a second engaging hole with which the second protruding portion engages are formed. Therefore, in the present invention, when integrating the front board, the back board, and the intermediate board, it is possible to easily position the front board and the intermediate board by the first protruding portion and the first engaging hole, and it is also possible to easily position the back board and the intermediate board by the second protruding portion and the second engaging hole. Thus, in the present invention, it is possible to more easily integrate the front board, the back board, and the intermediate board.

[0009] Also, in the present invention, it is possible to prevent the displacement between the front board and the intermediate board by the first protruding portion and the first engaging hole, and it is possible to prevent the displacement between the back board and the intermediate board by the second protruding portion and the second engaging hole. Therefore, in the present invention, it is possible to prevent the displacement between the front board, the intermediate board, and the back board integrated by the magnetic attractive force.

[0010] Furthermore, in the present invention, the first protruding portion of the front-side permanent magnet fixed to the front board protrudes rearward from the back surface of the front board, and the second protruding portion of the back-side permanent magnet fixed to the back board protrudes forward from the front surface of the back board. In addition, on the intermediate board, a first engaging hole with which the first protruding portion engages and a second engaging hole with which the second protruding portion engages are formed. Therefore, even if the thickness of the intermediate board increases, it is possible to reduce the distance between the front-side permanent magnet and the back-side permanent magnet in the thickness direction of the display board. Accordingly, in the present invention, even if the thickness of the intermediate board increases, the intermediate board can be appropriately held between the front board and the back board by the magnetic attractive force generated between the front-side permanent magnet and the back-side permanent magnet.

[0011] In the present invention, the thickness of the intermediate board is greater than the sum of the lengths of the first protruding portion and the second protruding portion, and it is preferable that the front-side permanent magnet and the back-side permanent magnet are arranged apart from each other in the thickness direction of the intermediate board. With this configuration, it becomes possible to easily separate the integrated front board, back board, and intermediate board as compared with the case where the front-side permanent magnet and the back-side permanent magnet are stuck together.

[0012] In the present invention, for example, it is preferable that the intermediate board is formed with a through hole that penetrates the intermediate board in the thickness direction of the intermediate board, one side portion of the through hole serves as the first engaging hole, and the other side portion of the through hole serves as the second engaging hole. With this configuration, it becomes easier to form the first engaging hole and the second engaging hole in the intermediate board.

[0013] In the present invention, for example, the intermediate board is formed with an exhibit placement hole in which an exhibit is placed. In this case, it becomes possible to display the exhibit placed in the exhibit placement hole by means of the display board.

[0014] In the present invention, it is preferable that the front board and the intermediate board are provided with a predetermined design. With such a configuration, it becomes possible to enhance the design property of the display board. Further, with such a configuration, by replacing the front board integrated with the back board and the intermediate board with a front board having a different design, or by replacing the intermediate board integrated with the front board and the back board with an intermediate board having a different design, it becomes possible to change the design of the display board to various designs. Therefore, it becomes possible to change the design of the display board to a design that suits the user's preference.

[0015] In the present invention, it is preferable that the intermediate board is formed of a transparent or translucent base material and the back board is provided with a predetermined design. With such a configuration, it becomes possible to further enhance the design property of the display board. Further, with such a configuration, by replacing the back board integrated with the front board and the intermediate board with a back board having a different design, it becomes possible to change the design of the display board to more various designs.

Effects of the Invention

[0016] As described above, in the present invention, in a display board including a front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, and an intermediate board sandwiched between the front board and the back board, it becomes possible to more easily integrate the front board, the back board, and the intermediate board.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0019] (Configuration of the display board) FIG. 1(A) is a front view of the display board 1 according to an embodiment of the present invention, FIG. 1(B) is a cross-sectional view taken along the line E-E of FIG. 1(A), FIG. 1(C) is an enlarged view of part F in FIG. 1(B), and FIG. 1(D) is an enlarged view of part G in FIG. 1(B). FIG. 2(A) is a back view of the surface board 3 shown in FIG. 1, and FIG. 2(B) is a cross-sectional view taken along the line H-H of FIG. 2(A). FIG. 3(A) is a front view of the intermediate board 5 shown in FIG. 1, and FIG. 3(B) is a cross-sectional view taken along the line J-J of FIG. 3(A).

[0020] The display board 1 of this embodiment is a board for decorating the pick 2 of a guitar, which is an exhibit. The display board 1 is formed in a rectangular flat plate shape. The size of the display board 1 is adapted to the size of the pick 2. The display board 1 includes a surface board 3 that constitutes the front surface (front side) of the display board 1, a back board 4 disposed on the back side of the surface board 3, and an intermediate board 5 sandwiched between the surface board 3 and the back board 4. Further, the display board 1 includes a permanent magnet 6 as a front side permanent magnet fixed to the surface board 3 and a permanent magnet 7 as a back side permanent magnet fixed to the back board 4. The display board 1 of this embodiment includes four permanent magnets 6 and four permanent magnets 7.

[0021] The front board 3, the back board 4, and the intermediate board 5 are formed in a rectangular flat plate shape. The front board 3 and the back board 4 are formed in the same shape. The thickness of the intermediate board 5 is thinner than the thickness of the front board 3. The outer shape of the intermediate board 5 is substantially equal to the outer shape of the front board 3. The display board 1 has a three-layer structure in which the front board 3, the intermediate board 5, and the back board 4 overlap in the thickness direction. The back surface of the front board 3 is in contact with the front surface of the intermediate board 5. The back surface of the intermediate board 5 is in contact with the front surface of the back board 4.

[0022] The front board 3, the back board 4, and the intermediate board 5 are formed of a transparent base material. The front board 3, the back board 4, and the intermediate board 5 of this embodiment are formed of a transparent resin. For example, the front board 3, the back board 4, and the intermediate board 5 are formed of an acrylic resin. The permanent magnets 6 and 7 are rare earth magnets. For example, the permanent magnets 6 and 7 are neodymium magnets. The permanent magnets 6 and 7 are formed in a short cylindrical shape. The permanent magnet 6 and the permanent magnet 7 are formed in the same shape.

[0023] Magnet fixing holes 3a for fixing the permanent magnet 6 are formed in the front board 3. The magnet fixing holes 3a are round holes that are recessed from the back surface of the front board 3 toward the front surface side. The inner diameter of the magnet fixing holes 3a is substantially equal to the outer diameter of the permanent magnet 6. The magnet fixing holes 3a are formed near the four corners of the front board 3 formed in a rectangular flat plate shape. Magnet fixing holes 4a for fixing the permanent magnet 7 are formed in the back board 4. The magnet fixing holes 4a are round holes that are recessed from the front surface of the back board 4 toward the back surface side. The inner diameter of the magnet fixing holes 4a is substantially equal to the outer diameter of the permanent magnet 7. The magnet fixing holes 4a are formed near the four corners of the back board 4 formed in a rectangular flat plate shape.

[0024] The permanent magnet 6 is adhesively fixed to the magnet fixing hole 3a. The permanent magnet 7 is adhesively fixed to the magnet fixing hole 4a. That is, the permanent magnets 6 and 7 are arranged near the four corners of the display board 1 formed in a rectangular flat plate shape. When viewed from the thickness direction of the display board 1, the magnet fixing hole 3a and the magnet fixing hole 4a overlap. That is, when viewed from the thickness direction of the display board 1, the permanent magnet 6 and the permanent magnet 7 overlap.

[0025] A part of the permanent magnet 6 protrudes rearward from the back surface of the front board 3. A part of the permanent magnet 6 that protrudes rearward from the back surface of the front board 3 forms a first protruding portion 6a (see FIGS. 1(C) and 1(D)). A part of the permanent magnet 7 protrudes forward from the front surface of the back board 4. A part of the permanent magnet 7 that protrudes forward from the front surface of the back board 4 forms a second protruding portion 7a (see FIGS. 1(C) and 1(D)). The length of the first protruding portion 6a (that is, the amount of protrusion of the permanent magnet 6 from the back surface of the front board 3) and the length of the second protruding portion 7a (that is, the amount of protrusion of the permanent magnet 7 from the front surface of the back board 4) are equal. For example, the length of the first protruding portion 6a and the length of the second protruding portion 7a are about 0.1 (mm) to 0.5 (mm).

[0026] The thickness of the intermediate board 5 is greater than the sum of the length of the first protruding portion 6a and the length of the second protruding portion 7a. An exhibit placement hole 5a for placing the pick 2 is formed in the intermediate board 5. The exhibit placement hole 5a penetrates the intermediate board 5 in the thickness direction of the intermediate board 5. The exhibit placement hole 5a is formed at the center of the intermediate board 5. The shape of the exhibit placement hole 5a is formed to be substantially the same as the outer shape of the pick 2. Notch portions 5b that are cut inward are formed at the two long sides of the intermediate board 5 formed in a rectangular flat plate shape. A predetermined design D1 is applied to the intermediate board 5. For example, a plurality of characters are printed as the design D1 on the surface of the intermediate board 5.

[0027] The intermediate board 5 is formed with a through hole 5c that penetrates the intermediate board 5 in the thickness direction of the intermediate board 5. The through hole 5c is a round hole. The inner diameter of the through hole 5c is substantially equal to the outer diameters of the permanent magnets 6 and 7. The through hole 5c is formed near the four corners of the intermediate board 5 formed in a rectangular flat plate shape. As shown in FIGS. 1(C) and (D), one side portion of the through hole 5c (specifically, a part of the through hole 5c on the front surface side) forms a first engagement hole 5d with which the first protrusion 6a engages. The other side portion of the through hole 5c (specifically, a part of the through hole 5c on the back surface side) forms a second engagement hole 5e with which the second protrusion 7a engages. That is, the intermediate board 5 is formed with a first engagement hole 5d with which the first protrusion 6a engages and a second engagement hole 5e with which the second protrusion 7a engages, and the first engagement hole 5d and the second engagement hole 5e are connected.

[0028] In this embodiment, the front board 3, the back board 4, and the intermediate board 5 are integrated by the magnetic attractive force generated between the permanent magnet 6 and the permanent magnet 7. That is, the intermediate board 5 and the pick 2 are held between the front board 3 and the back board 4 by the magnetic attractive force generated between the permanent magnet 6 and the permanent magnet 7. As described above, the thickness of the intermediate board 5 is greater than the sum of the lengths of the first protrusion 6a and the second protrusion 7a. Therefore, the permanent magnet 6 and the permanent magnet 7 are arranged apart from each other in the thickness direction of the intermediate board 5 (that is, the thickness direction of the display board 1), and the permanent magnet 6 and the permanent magnet 7 are not in contact with each other. When separating the integrated front board 3, back board 4, and intermediate board 5, the user inserts a fingertip into the notch 5b of the intermediate board 5.

[0029] (Main effects of this embodiment) As described above, in this embodiment, the front board 3, the back board 4, and the intermediate board 5 are integrated by the magnetic attractive force generated between the permanent magnet 6 and the permanent magnet 7. Therefore, in this embodiment, for example, compared with the case where the front board 3, the back board 4, and the intermediate board 5 are integrated by fixing them with screws, it is possible to easily integrate the front board 3, the back board 4, and the intermediate board 5.

[0030] In this embodiment, the first protruding portion 6a of the permanent magnet 6 protrudes rearward from the back surface of the front board 3, and the second protruding portion 7a of the permanent magnet 7 protrudes forward from the front surface of the back board 4. Further, on the intermediate board 5, a first engaging hole 5d with which the first protruding portion 6a engages and a second engaging hole 5e with which the second protruding portion 7a engages are formed. Therefore, in this embodiment, when integrating the front board 3, the back board 4, and the intermediate board 5, the first protruding portion 6a and the first engaging hole 5d enable easy positioning of the front board 3 and the intermediate board 5, and the second protruding portion 7a and the second engaging hole 5e enable easy positioning of the back board 4 and the intermediate board 5. Thus, in this embodiment, it becomes possible to more easily integrate the front board 3, the back board 4, and the intermediate board 5.

[0031] Also, in this embodiment, the first protruding portion 6a and the first engaging hole 5d can prevent displacement between the front board 3 and the intermediate board 5, and the second protruding portion 7a and the second engaging hole 5e can prevent displacement between the back board 4 and the intermediate board 5. Therefore, in this embodiment, it becomes possible to prevent displacement between the front board 3, the intermediate board 5, and the back board 4 that are integrated by magnetic attraction force.

[0032] Moreover, in this embodiment, since the intermediate board 5 is formed with the first engaging hole 5d that engages with the first protruding portion 6a protruding from the back surface of the front board 3 and the second engaging hole 5e that engages with the second protruding portion 7a protruding from the front surface of the back board 4, even if the thickness of the intermediate board 5 increases, it becomes possible to reduce the distance between the permanent magnet 6 and the permanent magnet 7 in the thickness direction of the display board 1. Therefore, in this embodiment, even if the thickness of the intermediate board 5 increases, the intermediate board 5 can be appropriately held between the front board 3 and the back board 4 by the magnetic attraction force generated between the permanent magnet 6 and the permanent magnet 7.

[0033] In this embodiment, the thickness of the intermediate board 5 is greater than the sum of the lengths of the first protruding portion 6a and the second protruding portion 7a, and the permanent magnet 6 and the permanent magnet 7 are not attached to each other. Therefore, in this embodiment, it is possible to more easily separate the integrated front board 3, rear board 4, and intermediate board 5 as compared with the case where the permanent magnet 6 and the permanent magnet 7 are attached to each other.

[0034] In this embodiment, one side portion of the through hole 5c that penetrates the intermediate board 5 in the thickness direction of the intermediate board 5 serves as the first engaging hole 5d, and the other side portion of the through hole 5c serves as the second engaging hole 5e. Therefore, in this embodiment, it becomes easier to form the first engaging hole 5d and the second engaging hole 5e in the intermediate board 5.

[0035] (Modification example of the display board) FIG. 4(A) is a front view of the display board 1 according to another embodiment of the present invention, and FIG. 4(B) is a cross-sectional view taken along the line K-K of FIG. 4(A). FIG. 5(A) is a front view of the front board 3 shown in FIG. 4, FIG. 5(B) is a front view of the intermediate board 5 shown in FIG. 4, and FIG. 5(C) is a front view of the rear board 4 shown in FIG. 4. In FIGS. 4 and 5, the same components as those in the above-described embodiment are denoted by the same reference numerals.

[0036] In the above-described embodiment, as shown in FIGS. 4 and 5, a predetermined design D2 may be applied to the front board 3, a predetermined design D3 may be applied to the rear board 4, and a predetermined design D4 may be applied to the intermediate board 5. For example, a plurality of characters may be printed as the design D2 on the surface of the front board 3, a plurality of characters may be printed as the design D3 on the surface of the rear board 4, and a plurality of figures may be printed as the design D4 on the surface of the intermediate board 5. In this modification example, when the display board 1 is viewed from the front (when viewed from the front side), the design D2, the design D3, and the design D4 do not overlap. Further, in this modification example, for example, the thicknesses of the front board 3, the rear board 4, and the intermediate board 5 are equal.

[0037] Note that in this modified example, the display item placement holes 5a are not formed in the intermediate board 5, but they may be formed in the intermediate board 5. When the display item placement holes 5a are not formed in the intermediate board 5, the display board 1 itself with the designs D2 to D4 applied thereto serves as the display item. Also, when the display board 1 is viewed from the front, a part of a certain design D2 to D4 may overlap with a part of another design D2 to D4. Furthermore, a photograph, a painting, or the like may be printed on the surface of the intermediate board 5. Also, a promotional poster or the like may be printed on the surface of the intermediate board 5, or a predetermined character or the like may be printed on the surface of the intermediate board 5. Also, a frame-like pattern such as a rectangle may be printed on the surface of the front board 3 or the surface of the back board 4.

[0038] In this modified example, since the designs D2 to D4 are applied to the front board 3, the back board 4, and the intermediate board 5, it becomes possible to enhance the design property of the display board 1. Also, in this modified example, by replacing the front board 3 integrated with the back board 4 and the intermediate board 5 with a front board 3 having a different design, or replacing the back board 4 integrated with the front board 3 and the intermediate board 5 with a back board 4 having a different design, or replacing the intermediate board 5 integrated with the front board 3 and the back board 4 with an intermediate board 5 having a different design, it becomes possible to change the design of the display board 1 into various designs. Therefore, it becomes possible to change the design of the display board 1 to a design that matches the user's preference.

[0039] (Other embodiments) If the above-described forms and modification examples are referred to as "the above-described forms, etc.", in the above-described forms, etc., the front board 3, the back board 4, and the intermediate board 5 may be made of glass. Also, in the above-described forms, etc., the front board 3 and the intermediate board 5 may be made of a translucent base material, and the back board 4 may be made of a translucent or opaque base material. Further, in the above-described forms, etc., the intermediate board 5 may be made of an opaque base material. In the above-described modification example, when the intermediate board 5 is made of an opaque base material, the design D3 is not applied to the back board 4.

[0040] In the above-described forms, etc., the thickness of the intermediate board 5 may be equal to the sum of the lengths of the first protruding portion 6a and the second protruding portion 7a, and the permanent magnet 6 and the permanent magnet 7 may be in contact with each other. Also, in the above-described forms, etc., the first engaging hole 5d and the second engaging hole 5e may not be connected. That is, instead of forming the through hole 5c in the intermediate board 5, a first engaging hole 5d that is recessed from the front surface of the intermediate board 5 toward the back surface side and a second engaging hole 5e that is recessed from the back surface of the intermediate board 5 toward the front surface side may be formed. Further, in the above-described forms, etc., the intermediate board 5 may not have the notch portion 5b.

[0041] In the above-described form, exhibits other than the pick 2 may be arranged in the exhibit placement hole 5a of the intermediate board 5. For example, a photograph, a card, or the like may be arranged in the exhibit placement hole 5a. In this case, the exhibit placement hole 5a is formed in a shape corresponding to the shape of the exhibit to be arranged. Also, in the above-described forms, etc., the number of the permanent magnets 6 and 7 provided in the display board 1 may be two or three, or may be five or more. When the display board 1 includes two permanent magnets 6 and two permanent magnets 7, the permanent magnets 6 and 7 are arranged near two corner portions arranged on the diagonal line among the four corners of the display board 1.

[0042] In the above-described embodiments and the like, the display board 1 may be formed in a flat plate shape of a quadrilateral other than a rectangle. Further, the display board 1 may be formed in a flat plate shape of a polygon other than a quadrilateral such as a triangle, or may be formed in a flat plate shape other than a polygon such as a circle or an ellipse. Further, the display board 1 may be formed in a three-dimensional shape such as a rectangular parallelepiped shape, or may be formed in a curved plate shape. Further, in the above-described embodiments and the like, the permanent magnets 6 and 7 may be magnets other than rare earth magnets. Furthermore, in the above-described embodiments and the like, the permanent magnets 6 and 7 may be formed in a short polygonal column shape or the like. Further, in the above-described embodiments and the like, the display board 1 may be used as a key holder or may be used as a novelty item.

Explanation of Signs

[0043] 1 Display board 2 Pick (display item) 3 Surface board 3a Magnet fixing hole 4 Back board 4a Magnet fixing hole 5 Intermediate board 5a Display item placement hole 5c Through hole 5d First engagement hole 5e Second engagement hole 6 Permanent magnet (front side permanent magnet) 6a First protrusion 7 Permanent magnet (back side permanent magnet) 7a Second protrusion D1~D4 Design

Claims

1. A front board formed of a transparent or translucent base material, a back board disposed on the back side of the front board, an intermediate board sandwiched between the front board and the back board, a front-side permanent magnet which is a permanent magnet fixed to the front board, and a back-side permanent magnet which is a permanent magnet fixed to the back board, magnet fixing holes for fixing the front-side permanent magnet are formed in the front board, magnet fixing holes for fixing the back-side permanent magnet are formed in the back board, a part of the front-side permanent magnet is a first protruding portion protruding rearward from the back surface of the front board, a part of the back-side permanent magnet is a second protruding portion protruding forward from the front surface of the back board, a first engaging hole with which the first protruding portion engages and a second engaging hole with which the second protruding portion engages are formed in the intermediate board, A display board, characterized in that the front board, the back board, and the intermediate board are integrated by a magnetic attractive force generated between the front-side permanent magnet and the back-side permanent magnet.

2. The thickness of the intermediate board is greater than the sum of the length of the first protruding portion and the length of the second protruding portion, The display board according to claim 1, characterized in that the front-side permanent magnet and the back-side permanent magnet are spaced apart in the thickness direction of the intermediate board.

3. A through hole penetrating the intermediate board in the thickness direction of the intermediate board is formed in the intermediate board, The display board according to claim 1 or 2, characterized in that one side portion of the through hole is the first engaging hole and the other side portion of the through hole is the second engaging hole.

4. The display board according to claim 1 or 2, characterized in that an exhibit placement hole for placing an exhibit is formed in the intermediate board.

5. The display board according to claim 1 or 2, characterized in that a predetermined design is applied to the front board and the intermediate board.

6. The intermediate board is formed of a transparent or translucent base material, The display board according to claim 5, characterized in that a predetermined design is applied to the back board.

Images