Method and apparatus of manufacturing concave / convex panel

Abstract

To provide a manufacturing method and a manufacturing apparatus of a concave / convex panel capable of performing enhancement of quality, reduction of manufacturing cost, and enhancement of workability.SOLUTION: A method of manufacturing a concave / convex panel 1 comprises: a preparation step of placing a concave / convex forming layer 11 onto a base material 10 via an adhesion layer; an arrangement step of arranging the base material 10 on which the concave / convex forming layer 11 is placed in a second chamber 22 by using a pressing sheet 23 having flexibility and a pressurization apparatus 2 having a first chamber 21 and the second chamber 22 partitioned with the pressing sheet 23 and configured to be sealable; an evacuation step of evacuating both sealed chambers 21 and 22; a pressing step of pressing a front side surface of the concave / convex forming layer 11 and the pressing sheet 23 against each other; and a compressing step of generating a pressure difference between the first chamber 21 and the second chamber 22 by making an inner pressure of the first chamber 21 to be higher than an inner pressure of the second chamber 22, to bring the pressing sheet 23 into close contact with the front side surface of the concave / convex forming layer 11, to compress the concave / convex forming layer 11 against the base material 10.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a method and an apparatus for manufacturing a concave-convex panel. [Background technology]

[0002] As a conventional method for forming an uneven panel having an uneven surface, for example, Patent Document 1 discloses a method in which rod-shaped rib materials that form the unevenness are fixed at predetermined intervals to a sheet-like base material. In this method, the rib materials are fixed with an adhesive. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-13716 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration disclosed in Patent Document 1, in order to fix the rib material to the substrate with the adhesive, it is preferable to press the rib material against the substrate using a press machine until the adhesive solidifies. However, since rib materials having various cross-sectional shapes can be adopted, when multiple rib materials arranged on the substrate are pressed by a press machine having a flat pressing surface, the pressure force is concentrated on a part of the rib material, and the rib material is pressed unevenly, so that sufficient adhesive strength cannot be obtained, or the part of the rib material where the pressure force is concentrated may be deformed, which may lead to a deterioration in quality. In order to avoid this, it is possible to press the rib material using a press machine having a pressing surface that conforms to the uneven shape formed by the multiple rib materials arranged on the substrate. However, in this case, it is necessary to prepare a press machine having a pressing surface that conforms to the uneven shape, which is not versatile and increases the manufacturing cost. In addition, it is necessary to change the pressing surface of the press machine every time the shape of the rib material or the arrangement of the rib material is changed, and the pressing surface of the press machine must be aligned to match the uneven shape, which reduces workability.

[0005] The present invention has been made in view of the above background, and aims to provide a method and apparatus for manufacturing a concave-convex panel which improves quality, reduces manufacturing costs, and improves workability. [Means for solving the problem]

[0006] One aspect of the present invention is A method for manufacturing a concave-convex panel comprising: a sheet-like substrate; a concave-convex forming layer laminated on the substrate and having a concave-convex shape on a front side opposite to the substrate; and an adhesive layer interposed between the substrate and the concave-convex forming layer to bond them together, a preparation step of placing the unevenness-forming layer on the base material via the adhesive layer; a step of disposing the base material on which the unevenness-forming layer is placed, on the inside of the second chamber, using a pressurizing device having a flexible pressing sheet and a first chamber and a second chamber that are partitioned by the pressing sheet and are configured to be sealable; a depressurization step of depressurizing the first chamber and the second chamber while sealing the insides of the first chamber and the second chamber; a pressing step of pressing the front side surface of the unevenness forming layer placed on the base material and the pressing sheet against each other; and a pressing step of making the internal pressure of the first chamber higher than the internal pressure of the second chamber to generate a pressure difference between the first chamber and the second chamber, thereby adhering the pressing sheet to the front side of the unevenness forming layer and pressing the unevenness forming layer against the base material with the pressing sheet.

[0007] Another aspect of the present invention is A manufacturing device for a concave-convex panel including a sheet-like base material, a concave-convex forming layer laminated on the base material and having a concave-convex shape on a front side opposite to the base material, and an adhesive layer interposed between the base material and the concave-convex forming layer to bond them together, A flexible pressing sheet; A first chamber and a second chamber that are separated by the pressing sheet and are each configured to be sealable; an internal pressure control device that individually controls the internal pressure of the first chamber and the second chamber; a base provided in the second chamber and on which the base material having the unevenness-forming layer placed thereon via the adhesive layer is disposed; Equipped with At least one of the base and the pressing sheet is configured to be displaceable so that the front side of the unevenness-forming layer placed on the base material disposed on the base is pressed against the pressing sheet, The internal pressure control device is configured in the uneven panel manufacturing apparatus to reduce the pressure in the first chamber and the second chamber with the insides of each chamber sealed, and then press the front side of the unevenness forming layer placed on the base material and the pressing sheet against each other, thereby making the internal pressure of the first chamber higher than the internal pressure of the second chamber, thereby generating a pressure difference between the first chamber and the second chamber, thereby adhering the pressing sheet to the front side of the unevenness forming layer and pressing the unevenness forming layer against the base material with the pressing sheet. Effect of the Invention

[0008] In the method for manufacturing the uneven panel in the above-mentioned embodiment, the unevenness-forming layer is pressed against the substrate while the flexible pressing sheet is in close contact with the uneven shape of the surface of the unevenness-forming layer, so that the pressure force from the pressing sheet is prevented from concentrating on a part of the unevenness-forming layer, and the unevenness-forming layer can be uniformly pressed against the substrate. As a result, deformation of the unevenness-forming layer can be prevented, and quality can be improved. Since the flexible pressing sheet can be deformed according to the uneven shape of the surface of the unevenness-forming layer, the method for manufacturing the uneven panel can be applied regardless of the shape of the surface of the unevenness-forming layer, and manufacturing costs can be reduced. Furthermore, since the flexible pressing sheet can be deformed according to the uneven shape of the surface of the unevenness-forming layer, there is no need to change or align the pressing sheet according to the uneven shape, and workability is improved.

[0009] Moreover, the manufacturing apparatus for a concave-convex panel in the other aspect described above can realize the manufacturing method for a concave-convex panel in the one aspect described above.

[0010] As described above, according to the present invention, it is possible to provide a manufacturing method and apparatus for a concave-convex panel that improves quality and reduces manufacturing costs. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view of the uneven panel according to the first embodiment. [Diagram 2] FIG. 2 is an enlarged partial cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is a flow diagram of a method for manufacturing a concave-convex panel in the first embodiment. [Figure 4] FIG. 2A is a conceptual diagram illustrating a preparation step in the first embodiment; FIG. 2B is another conceptual diagram illustrating the preparation step. [Diagram 5] FIG. 4A is a conceptual diagram illustrating a disposing step, and FIG. 4B is a conceptual diagram illustrating a depressurizing step in the first embodiment. [Figure 6] FIG. 4A is a conceptual diagram illustrating a pressing step, and FIG. 4B is a conceptual diagram illustrating a pressing step in the first embodiment. [Figure 7] 4A is a partially enlarged view of a conceptual diagram illustrating a pressing step in the first embodiment, and FIG. 4B is a partially enlarged view of a conceptual diagram illustrating a pressing step in the first embodiment. [Figure 8] 11A is a schematic cross-sectional view of a concave-convex panel according to a second embodiment, FIG. 11B is a partially enlarged view of the schematic diagram illustrating a pressing step, and FIG. [Figure 9] FIG. 11 is a conceptual cross-sectional view of a concave-convex forming member in a second embodiment. [Figure 10] 1A is a schematic cross-sectional view of a concave-convex panel, FIG. 1B is a partially enlarged view of the schematic diagram illustrating the pressing step, and FIG. 1C is a partially enlarged view of the schematic diagram illustrating the pressing step in a first modified embodiment. [Figure 11]13A is a schematic cross-sectional view of a concave-convex panel, FIG. 13B is a partially enlarged view of the schematic diagram illustrating the pressing step, and FIG. 13C is a partially enlarged view of the schematic diagram illustrating the pressing step in modified embodiment 2. [Figure 12] FIG. 11 is a perspective view of a concave-convex panel in a third embodiment. [Figure 13] 13A is a conceptual diagram illustrating a disposing step, and FIG. 13B is a conceptual diagram illustrating a depressurizing step in the third embodiment. [Figure 14] 13A is a conceptual diagram illustrating a pressing step, and FIG. 13B is a conceptual diagram illustrating a pressing step in the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The unevenness-forming layer is preferably configured by combining a plurality of unevenness-forming members having different thicknesses in the lamination direction relative to the base material, and is configured such that the uneven shape is formed on the front side of the unevenness-forming layer by placing the unevenness-forming members on the base material via the adhesive layer in the preparation step. In this case, the uneven shape on the front side of the unevenness-forming layer can be easily changed simply by changing the combination and arrangement of the unevenness-forming members, and a versatile uneven panel can be manufactured.

[0013] In the preparation step, it is preferable that the plurality of unevenness forming members are placed on the base material via the adhesive layer while being covered with a decorative sheet. In this case, the front side of the unevenness forming layer can be used as a design surface, and a high-quality uneven panel can be manufactured.

[0014] It is preferable that the pressurizing device includes a pedestal having a flat or curved mounting surface in the second chamber, the base material is flexible, and the base material is disposed on the mounting surface of the pedestal in the disposing step. In this case, the unevenness-forming layer can be uniformly pressed against the base material whether the base material of the uneven panel is flat or curved, and a high-quality uneven panel can be manufactured.

[0015] (Embodiment 1) A first embodiment of a method and an apparatus for manufacturing a concave-convex panel will be described below with reference to FIGS. 1 to 4. As shown in FIGS. 1 and 2, the concave-convex panel 1 in the first embodiment includes a base material 10, a concave-convex forming layer 11, and an adhesive layer 12. The base material 10 is in a sheet shape. The base material 10 may be one that has relatively high flexibility and easily bends, or one that has relatively high rigidity and is maintained in a plate shape. The material of the base material 10 is not limited, and may be paper, resin, wood, metal, or the like. In this embodiment, the material of the base material 10 is paper that has relatively high flexibility. In this embodiment, the thickness direction of the base material 10 is the thickness direction Z, one of the surface directions of the base material 10 is the width direction X, and the direction perpendicular to the width direction X in the surface direction is the longitudinal direction Y.

[0016] As shown in FIG. 2, the unevenness-forming layer 11 is laminated on the substrate 10, and has a front side 11a, which is the surface opposite to the substrate 10, and a back side 11b, which is the surface facing the substrate 10. The front side 11a has an uneven shape in which convex portions 111 and concave portions 112 extending in the longitudinal direction Y are alternately arranged in the width direction X. The back side 11b has a flat shape. The material of the unevenness-forming layer 11 is not limited. In this embodiment, the unevenness-forming layer 11 is made of a single plate material. The front side 11a of the unevenness-forming layer 11 may be covered with a decorative sheet that forms a design surface.

[0017] The adhesive layer 12 is interposed between the base material 10 and the unevenness-forming layer 11 to bond them together. The configuration of the adhesive layer 12 is not limited, and it may be composed of an adhesive alone or a double-sided tape having adhesive on both sides.

[0018] As shown in FIG. 3, the manufacturing method of the uneven panel 1 includes a preparation step S1, an arrangement step S2, a decompression step S3, a pressing step S4, and a pressing step S5. In the preparation step S1, as shown in FIG. 4(a) and FIG. 4(b), the unevenness forming layer 11 is placed on the base material 10 via the adhesive layer 12. In this embodiment, as shown in FIG. 4(a), an adhesive is applied to one main surface of the base material 10 to form the adhesive layer 12. Note that the method for forming the adhesive layer 12 is not limited, and in this embodiment, the adhesive layer 12 is formed by applying the adhesive using a roll coater. Then, as shown in FIG. 4(b), the unevenness forming layer 11 is placed on the adhesive layer 12. As a result, the base material 10 and the unevenness forming layer 11 are temporarily fixed via the adhesive layer 12. Note that in the preparation step S1, the adhesive layer 12 may be formed by applying an adhesive to the back side surface 11b of the unevenness forming layer 11.

[0019] Next, the arrangement step S2 to the pressing step S5 are performed using the pressurizing device 2 shown in Fig. 5(a). The pressurizing device 2 includes a first chamber 21, a second chamber 22, a pressing sheet 23, a base 24, and an internal pressure control device 25. The first chamber 21 constitutes an upper part of the pressurizing device 2, and constitutes a lower part of the second chamber 22. As shown in Fig. 5(b), the first chamber 21 and the second chamber 22 are separated by the pressing sheet 23 located therebetween, and each of them can be sealed.

[0020] A decompression pump 26 and an atmosphere release valve 27 are connected to the first chamber 21 and the second chamber 22. The operating states of the decompression pump 26 and the atmosphere release valve 27 are controlled by an internal pressure control device 25. The internal pressure control device 25 changes the operating states of the decompression pump 26 and the atmosphere release valve 27, whereby the internal pressures of the first chamber 21 and the second chamber 22 are individually controlled.

[0021] The pressing sheet 23 is a flexible sheet. The material of the pressing sheet 23 is not limited, but it can be made of resin. The pressing sheet 23 is supported by a frame 23a provided on the entire outer periphery of the pressing sheet 23. The base 24 is provided in the second chamber 22, and is configured to be movable toward and away from the pressing sheet 23. In this embodiment, the base 24 has a planar mounting surface 24a.

[0022] 5(a), the base material 10 having the unevenness-forming layer 11 placed thereon is placed on the mounting surface 24a of the base 24 in the second chamber 22. In the placing process S2, the base 24 is in a retracted position where the mounting surface 24a is separated from the pressing sheet 23.

[0023] Next, in the decompression step S3, as shown in Fig. 5(b), the first chamber 21 and the second chamber 22 are overlapped with the pressing sheet 23 sandwiched between them, and the inner spaces of the first chamber 21 and the second chamber 22 are sealed. Then, the decompression pump 26 is driven by the internal pressure control device 25 to reduce the pressure in the inner spaces of the first chamber 21 and the second chamber 22, thereby placing both in a vacuum state. Note that the vacuum state is not limited to a strict vacuum state, but also includes a state in which the internal pressure is sufficiently smaller than atmospheric pressure.

[0024] Thereafter, in a pressing step S4, as shown in FIG. 6(a), the front side surface 11a of the unevenness-forming layer 11 placed on the substrate 10 and the pressing sheet 23 are pressed against each other. In this embodiment, the base 24 is moved toward the pressing sheet 23 to press the front side surface 11a against the pressing sheet 23. Alternatively, the pressing sheet 23 may be pressed against the front side surface 11a by lowering the pressing sheet 23 toward the base 24. In the pressing step S4, when the front side surface 11a is pressed against the pressing sheet 23, a gap P is formed between the pressing sheet 23 and the unevenness-forming layer 11 at the recess 112 in the front side surface 11a of the unevenness-forming layer 11, as shown in FIG. 7(a).

[0025] Then, in the pressing step S5, the first chamber 21 is opened to the atmosphere through the atmosphere release valve 27 by the internal pressure control device 25, and the internal pressure of the first chamber 21 is made higher than the internal pressure of the second chamber 22, generating a pressure difference between the first chamber 21 and the second chamber 22. As a result, as shown in Fig. 6(b), the pressing sheet 23 is brought into close contact with the front side surface 11a of the irregularity forming layer 11, and the pressing sheet 23 presses the irregularity forming layer 11 against the substrate 10. At this time, as shown in Fig. 7(b), the pressing sheet 23 is brought into close contact with the front side surface 11a, thereby eliminating the gap P and preventing so-called air trapping.

[0026] Thereafter, the pressure applied by the pressure sheet 23 is continued for a predetermined time until the adhesive layer 12 solidifies, and then the internal pressure control device 25 opens the second chamber 22 to the atmosphere through the air release valve 27. This eliminates the pressure difference between the first chamber 21 and the second chamber 22, releasing the pressure applied by the pressure sheet 23 and terminating the flow.

[0027] Next, the effects of the manufacturing method for the uneven panel 1 of this embodiment will be described in detail. According to the manufacturing method of the uneven panel 1 of this embodiment, the unevenness forming layer 11 is pressed against the base material 10 while the flexible pressing sheet 23 is in close contact with the uneven shape of the front side 11a of the unevenness forming layer 11, so that the pressing force of the pressing sheet 23 is suppressed from concentrating on a part of the unevenness forming layer 11, and the unevenness forming layer 11 can be uniformly pressed against the base material 10. As a result, the deformation of the unevenness forming layer 11 can be prevented, and the quality can be improved. Since the flexible pressing sheet 23 can be deformed according to the uneven shape of the front side 11a of the unevenness forming layer 11, the manufacturing method of the uneven panel 1 can be applied regardless of the shape of the front side 11a of the unevenness forming layer 11, and the manufacturing cost can be reduced. Furthermore, since the flexible pressing sheet 23 can be deformed according to the uneven shape of the front side 11a of the unevenness forming layer 11, there is no need to change or align the pressing sheet 23 according to the uneven shape, and the workability is improved.

[0028] Furthermore, the above-mentioned manufacturing method of the uneven panel can be realized by the pressurizing device 2, which is a manufacturing device for the uneven panel 1. This improves the quality of the uneven panel 1, reduces the manufacturing cost, and improves the workability.

[0029] (Embodiment 2) In the above-mentioned embodiment 1, the irregularity forming layer 11 is formed from a single plate material, but the irregularity forming layer 11 may be formed by combining a plurality of irregularity forming members 110 having different thicknesses. For example, in the present embodiment 2, as shown in FIG. 8(a), the irregularity forming layer 11 is formed by arranging the irregularity forming members 110, which are rod-shaped extending in the longitudinal direction Y and have a triangular cross-sectional shape, in the width direction X without any gaps. Since the irregularity forming member 110 in the embodiment 2 has a triangular cross-sectional shape, the thickness of the portion located at the apex of the triangle (the apex located at the top in the thickness direction Z) is different from the thickness of the portion located at the other apex forming the base of the triangle. As a result, in the embodiment 2, the front side surface 11a of the irregularity forming layer 11 formed by the plurality of irregularity forming members 110 has an irregular shape. In the present embodiment 2, the same reference numerals are used for the configurations equivalent to those in the embodiment 1, and the description thereof will be omitted.

[0030] In the present embodiment 2, similarly to the case of the first embodiment, the gap P generated in the pressing step S4 shown in Fig. 8(b) disappears as the pressing sheet 23 deforms along the uneven shape of the front side surface 11a of the unevenness-forming layer 11 formed by combining a plurality of unevenness-forming members 110 and adheres closely to the front side surface 11a in the pressing step S5 shown in Fig. 8(c). As a result, the present embodiment 2 also achieves the same effects as the case of the first embodiment.

[0031] Furthermore, in this embodiment, the unevenness forming layer 11 is configured by combining a plurality of unevenness forming members 110, and an uneven shape is formed on the front side surface 11a, so that the uneven shape on the front side surface 11a of the unevenness forming layer 11 can be easily changed simply by changing the combination and arrangement of the unevenness forming members 110, and it is possible to manufacture a versatile uneven panel 1. Also, in this embodiment, since the base material 10 is made of flexible paper, the completed uneven panel 1 can be folded along the boundary between adjacent unevenness forming members 110. Therefore, the uneven panel 1 can be arranged so as to follow a curved surface.

[0032] In this embodiment, as shown in Fig. 9, the unevenness-forming member 110 is covered with the decorative sheet 14 in advance. The method for covering the unevenness-forming member 110 with the decorative sheet 14 is not particularly limited, and for example, the unevenness-forming member 110 can be covered with the decorative sheet 14 by a known method using a vacuum forming machine. In this embodiment, in the preparation step S1, the unevenness-forming members 110 are placed on the base material 10 via the adhesive layer 12 while each is covered with the decorative sheet 14. This allows the front side surface 11a of the unevenness-forming layer 11 to be used as a design surface, and a high-quality uneven panel 1 can be manufactured.

[0033] In the second embodiment, the cross-sectional shape of the unevenness-forming member 110 is a triangle, but this is not limiting, and the unevenness-forming member 110 may be a rod-shaped member having a semicircular cross-sectional shape as in modified form 1 shown in Fig. 10(a). In the first modified form, the gap P formed in the pressing step S4 shown in Fig. 10(b) disappears when the pressing sheet 23 deforms along the uneven shape of the front side surface 11a of the unevenness-forming layer 11 formed by combining a plurality of unevenness-forming members 110 and adheres closely to the front side surface 11a in the pressing step S5 shown in Fig. 10(c). As a result, the first modified form also exhibits the same effects as the second embodiment.

[0034] Also, as in the modified embodiment 2 shown in FIG. 11(a), the irregularity-forming layer 11 may be formed by combining irregularity-forming members 110a, 110b, 110c, 110d, 100e, and 110f, which are rod-shaped members having different sizes in the thickness direction Z. In the modified embodiment 2, the irregularity-forming members 110a to 110f also have different sizes in the width direction X. In the modified embodiment 2, the gap P formed in the pressing step S4 shown in FIG. 11(b) disappears when the pressing sheet 23 is deformed along the irregular shape of the front side surface 11a of the irregularity-forming layer 11 formed by combining a plurality of the irregularity-forming members 110a to 110f and adheres closely to the front side surface 11a in the pressing step S5 shown in FIG. 11(c). As a result, the modified embodiment 2 also has the same effect as the embodiment 2.

[0035] (Embodiment 3) In the above-mentioned embodiment 1, the substrate 10 is flat as shown in Fig. 1, and correspondingly, the mounting surface 24a of the base 24 of the pressure device 2 is also flat as shown in Fig. 5(a). On the other hand, in the present embodiment 3, the substrate 10 is gently curved so as to be convex upward in the thickness direction Z (the lamination direction of the substrate 10 and the unevenness-forming layer 11) in the longitudinal direction Y as shown in Fig. 12, and correspondingly, the mounting surface 24a of the base 24 of the pressure device 2 is also gently curved so as to be convex upward in the thickness direction Z in the longitudinal direction Y as shown in Fig. 13(a).

[0036] In the third embodiment, as shown in Fig. 13(a), in the disposing step S2, the substrate 10 can be disposed on the mounting surface 24a of the pedestal 24 without any gap between the substrate 10 and the mounting surface 24a. Then, through the depressurizing step S3 shown in Fig. 13(b) and the pressing step S4 shown in Fig. 14(a), in the pressing step S5 shown in Fig. 14(b), the pressing sheet 23 is brought into close contact with the front side surface 11a of the irregularity forming layer 11 while maintaining the state in which there is no gap between the substrate 10 and the mounting surface 24a, and the irregularity forming layer 11 is pressed against the substrate 10 by the pressing sheet 23. Note that the same reference numerals are used for the configurations equivalent to those of the first embodiment, and the description thereof will be omitted.

[0037] According to the manufacturing method of the uneven panel 1 in this embodiment 3, the same effect as that of the above-mentioned embodiment 1 is achieved, and the uneven forming layer 11 can be uniformly pressed against the base material 10 even if the base material 10 has a curved shape, thereby enabling the production of a high-quality uneven panel 1.

[0038] As described above, according to the present invention, it is possible to provide a manufacturing method and apparatus for a concave-convex panel that improves quality, reduces manufacturing costs, and improves workability.

[0039] The present invention is not limited to the above-described embodiments, and can be applied to various embodiments without departing from the gist of the present invention. [Explanation of symbols]

[0040] 1 Convex and concave panel 10 Base material 11 Unevenness forming layer 11a Front side 12 Adhesive layer 2. Pressurizing equipment (machining equipment for uneven panels) 21 First Chamber 22 Chamber 2 23 Pressure Sheet 24 Pedestal 24a Placement surface 25 Internal pressure control device

Claims

1. A method for manufacturing a concave-convex panel comprising: a sheet-like substrate; a concave-convex forming layer laminated on the substrate and having a concave-convex shape on a front side opposite to the substrate; and an adhesive layer interposed between the substrate and the concave-convex forming layer to bond them together, a preparation step of placing the unevenness-forming layer on the base material via the adhesive layer; a step of disposing the base material on which the unevenness-forming layer is placed, on the inside of the second chamber, using a pressurizing device having a flexible pressing sheet and a first chamber and a second chamber that are partitioned by the pressing sheet and are configured to be sealable; a depressurization step of depressurizing the first chamber and the second chamber while sealing the insides of the first chamber and the second chamber; a pressing step of pressing the front side surface of the unevenness forming layer placed on the base material and the pressing sheet against each other; a pressing step of making the internal pressure of the first chamber higher than the internal pressure of the second chamber to generate a pressure difference between the first chamber and the second chamber, thereby adhering the pressing sheet to the front side of the unevenness forming layer and pressing the unevenness forming layer against the base material with the pressing sheet.

2. The method for manufacturing an uneven panel as described in claim 1, wherein the unevenness forming layer is formed by combining multiple unevenness forming members having portions with different thicknesses in the stacking direction relative to the base material, and the unevenness shape is formed on the front side of the unevenness forming layer by placing the unevenness forming members on the base material via the adhesive layer in the preparation process.

3. The method for manufacturing a concave-convex panel according to claim 2 , wherein in the preparation step, the plurality of concave-convex forming members are placed on the base material via the adhesive layer in a state where each of the concave-convex forming members is covered with a decorative sheet.

4. The pressurizing device includes a base having a flat or curved mounting surface in the second chamber, The method for manufacturing a concave-convex panel according to claim 1 or 2, wherein the base material has flexibility, and in the disposing step, the base material is disposed on the mounting surface of the base.

5. A manufacturing device for a concave-convex panel including a sheet-like base material, a concave-convex forming layer laminated on the base material and having a concave-convex shape on a front side opposite to the base material, and an adhesive layer interposed between the base material and the concave-convex forming layer to bond them together, A flexible pressing sheet; a first chamber and a second chamber that are separated by the pressing sheet and are each configured to be sealable; an internal pressure control device that individually controls the internal pressure of the first chamber and the internal pressure of the second chamber; a base provided in the second chamber and on which the base material having the unevenness-forming layer placed thereon via the adhesive layer is disposed; Equipped with At least one of the base and the pressing sheet is configured to be displaceable so that the front side of the unevenness-forming layer placed on the base material disposed on the base is pressed against the pressing sheet, The internal pressure control device is configured to reduce the pressure in the first chamber and the second chamber with the insides of each chamber sealed, and then, with the front side of the unevenness forming layer placed on the base material and the pressing sheet pressed against each other, make the internal pressure of the first chamber higher than the internal pressure of the second chamber, thereby generating a pressure difference between the first chamber and the second chamber, thereby adhering the pressing sheet to the front side of the unevenness forming layer and pressing the unevenness forming layer against the base material with the pressing sheet.

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