Functional roof and manufacturing process of this

Abstract

A functional roof (1) has a functional layer (10), a sealing layer (20), a material (30) protecting the front surface and made of resin with a light transmission, a material (40) protecting the rear surface, and a barrier layer (50). The barrier layer (50) has a front barrier layer (50A) and a rear barrier layer (50B). The front barrier layer (50A) has a section (51) covering the front surface, and the rear barrier layer (50B) has a section (52) covering the rear surface.The front barrier layer (50A) has a front projecting section that projects from an edge section of the section covering the front surface and that is located away from the material protecting the front surface, and the front projecting section is joined to the rear barrier layer in a state of covering a surrounding end surface, or the rear barrier layer (50B) has a rear projecting section (53) that projects from an edge section of the section covering the rear surface (52) and that is located away from the material (40) protecting the rear surface, and the rear projecting section (53) is joined to the front barrier layer (50A) in a state of covering the surrounding end surface (S3).

Description

TECHNICAL AREA

[0001] The present disclosure relates to a functional roof and a manufacturing process for it. STATE OF THE ART

[0002] A functional roof (such as a photovoltaic solar panel or a light-control roof) provided on the upper surface of a vehicle is known. For example, Japanese Patent Publication No. 2014-207362 discloses a solar battery comprising a solar battery cell, a sealing material protecting the solar battery cell, a light-transmitting component provided on a front surface of the sealing material, a rear layer provided on a rear surface of the sealing material, and a first gas barrier layer and a second gas barrier layer provided along an outer edge of the sealing material. CITATION LIST PATENT LITERATURE

[0003] Japanese Patent Publication No. 2014-207362 SUMMARY OF THE INVENTIONAL PROBLEM

[0004] If, in the solar battery described in Japanese Patent Publication No. 2014-207362, the light-transmitting component is made of resin to reduce weight, there are concerns that air bubbles in the sealing material may be caused by gas or water vapor passing through the light-transmitting component and reaching the sealing material. Similarly, there are concerns that air bubbles in the sealing material may be caused by gas or water vapor passing through the back layer and reaching the sealing material.

[0005] It is an object of the present invention to provide a functional roof and a manufacturing method for it which makes it possible to suppress the occurrence of air bubbles in a sealing layer. SOLUTION TO THE PROBLEM

[0006] A functional roof according to one aspect of the present disclosure has: a functional layer having a predetermined function; a sealing layer sealing the functional layer and having a front surface, a rear surface, and a surrounding end surface connecting the front and rear surfaces and surrounding a perimeter of the functional layer in an annular manner; a front-surface-protecting material formed from a resin having light transmittance and protecting the front surface of the sealing layer; a rear-surface-protecting material protecting the rear surface of the sealing layer; and a barrier layer covering the sealing layer, the barrier layer comprising a front barrier layer situated between the sealing layer and the front-surface-protecting material, and a rear barrier layer.which is located between the sealing layer and the material protecting the rear surface, wherein the front barrier layer has a front surface-covering section that covers an entire region of the front surface of the sealing layer, the rear barrier layer has a rear surface-covering section that covers an entire region of the rear surface of the sealing layer, and the front barrier layer has a front projecting section that projects from an edge section of the front surface-covering section and that is located away from the material protecting the front surface, and the front projecting section is joined with the rear barrier layer in a state of covering the surrounding end surface, or the rear barrier layer has a rear projecting section,which projects from an edge section of the section covering the rear surface and which is located away from the material protecting the rear surface, and the rear projecting section is joined with the front barrier layer in a state of covering the surrounding end surface.

[0007] Furthermore, a manufacturing process of a functional roof according to one aspect of the present disclosure comprises a functional layer having a predetermined function, a sealing layer sealing the functional layer, a front surface protecting material formed of resin having a light transmittance and protecting a front surface of the sealing layer, a rear surface protecting material protecting a rear surface of the sealing layer, and a barrier layer covering the sealing layer, wherein the barrier layer has a front barrier layer located between the sealing layer and the front surface protecting material, and a rear barrier layer located between the sealing layer and the rear surface protecting material.The following steps: a stack-forming step of forming a stack by stacking the material protecting the front surface, the front barrier layer, a multitude of sealing layer-forming materials that constitute the sealing layer, and the functional layer located within the multitude of sealing layer-forming materials, the rear barrier layer, and the material protecting the rear surface; a joining step of forming the sealing layer that seals the functional layer by heating the stack and thus softening the multitude of sealing layer-forming materials, and of forming the barrier layer that covers the sealing layer by joining the front barrier layer and the rear barrier layer; and a hot-pressing step, after the joining step, of pressing the material protecting the front surface, the sealing layer,the barrier layer and the material protecting the back surface, while the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface are heated, so that the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface have a shape that is bent to protrude to one side in a direction in which the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface are stacked. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0008] The present disclosure may provide a functional roof and a manufacturing method for it, which makes it possible to suppress the occurrence of air bubbles in a sealing layer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a top view schematically representing a functional roof according to an embodiment of the present disclosure. Fig. 2 is a cross-sectional view along a line II-II in Fig. 1. Fig. Figure 3 is a cross-sectional view that schematically illustrates a manufacturing process for the functional roof. Fig. Figure 4 is a diagram that schematically represents a variation of the functional roof. Fig. Figure 5 is a diagram that schematically represents a variation of the functional roof. Fig. Figure 6 is a diagram that schematically represents a variation of the functional roof. Fig. Figure 7 is a diagram that schematically represents a variation of the functional roof. Fig. Figure 8 is a diagram that schematically represents a variation of the functional roof. DESCRIPTION OF EXAMPLES OF EXECUTION

[0009] Exemplary embodiments of the present invention are described with reference to the drawings. In the drawings referred to below, identical or equivalent components are given the same reference numerals.

[0010] Fig. Figure 1 is a diagram that schematically represents a functional roof according to an embodiment of the present disclosure. Fig. 2 is a cross-sectional view along a line II-II in Fig. 1. The functional roof 1 is preferably used on a vehicle.

[0011] As in Fig. 1 and Fig. As shown in Figure 2, the functional roof 1 has a functional layer 10, a sealing layer 20, a material protecting the front surface 30, a hard layer layer 35, a material protecting the rear surface 40, a barrier layer 50 and a shielding section 70.

[0012] Functional layer 10 has a predetermined function. Examples of predetermined functions include power generation, light control, and display. If the predetermined function is power generation, functional layer 10 is formed from a photovoltaic solar panel. If the predetermined function is light control, functional layer 10 is formed from a light control film (a film capable of adjusting light transmittance by applying a voltage). If the predetermined function is display, functional layer 10 is formed from a display (an LED, an organic electroluminescent material, a liquid crystal, or the like).

[0013] As in Fig. As shown in Figure 2, the functional layer 10 is shaped like an approximately flat plate. The functional layer 10 has a first main surface 10a, a second main surface 10b, and an end surface 10c. The first main surface 10a is a surface located on one side of the functional layer 10 (the upper side in Figure 2). Fig. 2) in their thickness direction (the top-and-bottom direction in Fig. 2) is formed. The first principal surface 10a is formed to be essentially flat. The second principal surface 10b is a surface formed on the other side in the thickness direction of the functional layer 10. The second principal surface 10b is formed to be essentially flat. The end surface 10c connects the first principal surface 10a and the second principal surface 10b and is adjacent in a ring-like manner.

[0014] The sealing layer 20 seals the functional layer 10. Specifically, the sealing layer 20 seals the entire region of the first main surface 10a, the entire region of the second main surface 10b, and the entire region of the end surface 10c of the functional layer 10. The sealing layer 20 is formed from a resin with light transmission. The sealing layer 20 is formed from, for example, ethylene-vinyl acetate (EVA), polyolefin, silicone, or an ionomer. The sealing layer 20 is formed by heating the layers made of the aforementioned resins (sealing layer-forming materials) in a stacked state.

[0015] The sealing layer 20 has a front surface S1, a rear surface S2, and a surrounding end surface S3. The front surface S1 is located on one side of the functional layer 10 in the thickness direction of the functional layer 10 and is formed by a main surface on that side of the sealing layer 20. The rear surface S2 is located on the other side of the functional layer 10 in the thickness direction of the functional layer 10 and is formed by a main surface on the other side of the sealing layer 20. The surrounding end surface S3 connects the front surface S1 and the rear surface S2 and surrounds the perimeter of the functional layer 10 in a ring-like fashion.

[0016] The material 30 protecting the front surface protects the front surface S1 of the sealing layer 20. The material 30 protecting the front surface is attached to one side of the sealing layer 20 (the upper side in Fig. 2) provided, wherein a front-side barrier layer 50A and a front-side adhesion layer 50C, which will be described later, are arranged between them. The material 30 protecting the front surface is made of a resin with a light transmittance. The material 30 protecting the front surface is made of, for example, polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), or polypropylene (PP).

[0017] The hard layer 35 is provided on a front surface of the material 30 that protects the front surface. The hard layer 35 is made of a material that has a higher hardness than the material of the material 30 that protects the front surface and covers the front surface of the material 30 that protects the front surface. The hard layer 35 is made of a material with a light transmittance.

[0018] The material 40 protecting the rear surface protects the rear surface S2 of the sealing layer 20. The material 40 protecting the rear surface is located on the other side of the sealing layer 20 (the lower side in Fig. 2) provided, wherein a rear barrier layer 50B and a rear adhesion layer 50D, which will be described later, are arranged between them. The outer shape of the rear surface-protecting material 40 in a plan view is approximately the same as the outer shape of the rear surface S2 of the sealing layer 20 in a plan view. The thickness of the rear surface-protecting material 40 is less than the thickness of the front surface-protecting material 30. The flexural stiffness of the front surface-protecting material 30 is higher than the flexural stiffness of the rear surface-protecting material 40. If the functional layer 10 is formed from a light-controlling film, the rear surface-protecting material 40 is formed from a material with light transmission. The rear surface-protecting material 40 is formed from, for example, polycarbonate (PC), ABS resin, or a composite material of these.

[0019] The barrier layer 50 covers the sealing layer 20. The barrier layer 50 is made of a material (such as a resin) that prevents the passage of gas or water vapor. The barrier layer 50 is formed as a film (a thin film). As in Fig. As shown in Figure 2, the barrier layer 50 has the front barrier layer 50A, the rear barrier layer 50B, the front adhesion layer 50C and the rear adhesion layer 50D.

[0020] The front barrier layer 50A is located between the sealing layer 20 and the material 30 protecting the front surface. The front barrier layer 50A is made of a material with light transmission. The front barrier layer 50A has a section 51 covering the front surface and a front extension section 54.

[0021] The section 51 covering the front surface covers the entire region of the front surface S1 of the sealing layer 20. The outer shape of the section 51 covering the front surface in a plan view corresponds essentially to the outer shape of the front surface S1 of the sealing layer 20 in a plan view.

[0022] The front extension section 54 extends from an edge section of the section 51 covering the front surface and is joined to the material 30 protecting the front surface. That is, the front extension section 54 is formed in a position where the front extension section 54 does not overlap with the sealing layer 20 in the thickness direction of the functional roof 1 (the top-and-bottom direction). Fig. 2) overlaps.

[0023] The front adhesion layer 50C is provided across the entire region of a front surface of the front barrier layer 50A and causes the front barrier layer 50A to adhere to the material 30 protecting the front surface. The front adhesion layer 50C is made of a translucent material (such as a synthetic resin). The external shape of the front adhesion layer 50C is essentially the same as the external shape of the front barrier layer 50A.

[0024] The rear barrier layer 50B is located between the sealing layer 20 and the material 40 protecting the rear surface. If the functional layer 10 is formed from a light-controlling film, the rear barrier layer 50B is formed from a material with a certain light transmittance. The rear barrier layer 50B has a section 52 covering the rear surface and a rearward projecting section 53.

[0025] The section 52 covering the rear surface covers the entire region of the rear surface S2 of the sealing layer 20. The outer shape of the section 52 covering the rear surface in a plan view essentially corresponds to the outer shape of the rear surface S2 of the sealing layer 20 in a plan view.

[0026] The rear projecting section 53 extends beyond an edge section of the rear surface-covering section 52. The rear projecting section 53 is located away from the material 40 protecting the rear surface. The rear projecting section 53 is joined to the front barrier layer 50A in such a way that it covers the surrounding end surface S3 of the sealing layer 20. The rear projecting section 53 has an end-surface-covering section 53a and a rear layer end section 53b.

[0027] The end-surface-covering section 53a is adjacent to the edge section of the rear-surface-covering section 52 and covers the surrounding end surface S3 of the sealing layer 20. A space may be formed between the end-surface-covering section 53a and the surrounding end surface S3.

[0028] The rear layer end section 53b is joined to the front barrier layer 50A. In the present embodiment, the rear layer end section 53b is joined to the front extension section 54.

[0029] The backside adhesion layer 50D is provided across the entire region of a back surface of the backside barrier layer 50B and causes the backside barrier layer 50B to adhere to the material 40 protecting the back surface. If the functional layer 10 is designed as a light-controlling film, the backside adhesion layer 50D is formed from a material with light transmittance (such as a synthetic resin). The external shape of the backside adhesion layer 50D is essentially the same as the external shape of the backside barrier layer 50B.

[0030] The shielding section 70 is formed from a black material (such as a ceramic). In the present embodiment, the shielding section 70 is provided on a rear surface of the material 30 that protects the front surface. Specifically, the material 30 protecting the front surface has a flange section 32 that projects outwards from a section that overlaps the sealing layer 20 in the thickness direction, and the shielding section 70 is provided on a rear surface of the flange section 32.

[0031] A manufacturing process for the functional roof 1 will be described next with reference to Fig. 3 described. This manufacturing process includes a stack-forming step, a joining step and a hot pressing step.

[0032] In the stacking step, a stack is formed by stacking the material 30 protecting the front surface, the front barrier layer 50A, the multitude of sealing layer-forming materials that constitute the sealing layer 20, the functional layer 10 located within the multitude of sealing layer-forming materials, the rear barrier layer 50B, and the material 40 protecting the rear surface. Specifically, in the stacking step, a stack is formed by stacking the material 30 protecting the front surface, which is provided with the hard layer 35, the front adhesion layer 50C, the front barrier layer 50A, the multitude of sealing layer-forming materials, the functional layer 10, the rear barrier layer 50B, the rear adhesion layer 50D, and the material 40 protecting the rear surface.

[0033] In the stack-forming step, prior to the formation of the stack, the material 30 protecting the front surface, which is provided with the hard layer 35, the front adhesion layer 50C, and the front barrier layer 50A can be pre-united by heating. Similarly, prior to the formation of the stack, the material 40 protecting the back surface and the section 52 of the back barrier layer 50B covering the back surface can be pre-united by heating.

[0034] In the joining step, the sealing layer 20, which seals the functional layer 10, is formed by heating the stack and thus softening the multitude of sealing layer-forming materials, and the barrier layer 50, which covers the sealing layer 20, is formed by joining the front barrier layer 50A and the rear barrier layer 50B. As in Fig. As shown in Figure 3, in the joining step the stack is joined, for example, by creating a vacuum in the space between a plate-like component 101 and a layer 102, in a state where the stack is placed against the heated plate-like component 101 and the stack is covered by the rubber layer 102. In the joining step, the front extension section 54 of the front barrier layer 50A and the rear end section 53b of the rear barrier layer 50B are joined together. Thus, the end-covering section 53a is formed, which covers the surrounding end surface S3 of the sealing layer 20.

[0035] The hot pressing step is carried out after the joining step. In the hot pressing step, the hard layer layer 35, the front surface protective material 30, the sealing layer 20, the barrier layer 50, and the rear surface protective material 40 are pressed while heated, so that the hard layer layer 35, the front surface protective material 30, the sealing layer 20, the barrier layer 50, and the rear surface protective material 40 have a shape that is bent to protrude on one side in the stacking direction, specifically from the rear surface protective material 40 towards the front surface protective material 30.

[0036] As described above, in the functional roof 1 of the present embodiment, the barrier layer 50 has the section 51 covering the front surface, the section 52 covering the rear surface and the section 53a covering the end surfaces, and consequently, the occurrence of air bubbles in the sealing layer 20 caused by gas or water vapor penetrating the sealing layer 20 is suppressed.

[0037] Additionally, since the rear projecting section 53 is located away from the material 40 protecting the rear surface, the outer shape of the material 40 protecting the rear surface can be made smaller in a plan view to be approximately the same size as the outer shape of the rear surface S2 of the sealing layer 20 in a plan view.

[0038] Next, variations of the above embodiment will be described. (First variation)

[0039] As in Fig. As shown in Figure 4, the rear layer end section 53b can be located between the section 51 covering the front surface and the sealing layer 20. In this case, the front extension section 54 can be omitted, and the front barrier layer 50A can consist solely of the section 51 covering the front surface. In this example, the front barrier layer 50A and the rear barrier layer 50B are joined together, with the rear adhesion layer 50D positioned between them, thus increasing airtightness. (Second variation)

[0040] As in Fig. As shown in Figure 5, the rear layer end section 53b can be located between the section 51 covering the front surface and the sealing layer 20, and the shielding section 70 can be provided on a rear surface of the material 40 protecting the rear surface. In this example as well, the front extension section 54 can be omitted, and the front barrier layer 50A can consist solely of the section 51 covering the front surface. Furthermore, in this example, the flange section 32 of the material 30 protecting the front surface can be omitted. (Third variation)

[0041] As in Fig. As shown in Figure 6, the rearward projecting section 53 can be omitted in the rear barrier layer 50B, and the front barrier layer 50A can have a frontward projecting section 55 instead of the frontward extension section 54. The frontward projecting section 55 projects from the edge section of the section 51 covering the front surface and is located away from the material 30 protecting the front surface. The frontward projecting section 55 is joined to the rear barrier layer 50B in a state of covering the surrounding end surface S3. The frontward projecting section 55 has an end-surface-covering section 55a and a front layer end section 55b.

[0042] The end-surface-covering section 55a is adjacent to the edge section of the front-surface-covering section 51 and covers the surrounding end surface S3 of the sealing layer 20. A space may be formed between the end-surface-covering section 55a and the surrounding end surface S3.

[0043] The front layer end section 55b is joined to the rear barrier layer 50B. In this example, while the material 40 protecting the rear surface has a flange section 42 projecting outwards from a section overlapping the sealing layer 20 in the thickness direction, the rear barrier layer 50B has a rear extension section 56 extending from the edge section of the rear surface-covering section 52 and joined to the flange section 42, and the front layer end section 55b is joined to the rear extension section 56. (Fourth variation)

[0044] As in Fig. As shown in Figure 7, the front layer end section 55b can be located between the section 52 covering the rear surface and the sealing layer 20. In this case, the rear extension section 56 can be omitted, and the rear barrier layer 50B can consist solely of the section 52 covering the rear surface. In this example, the front barrier layer 50A and the rear barrier layer 50B are joined together, with the front adhesion layer 50C positioned between them, thus increasing airtightness in the same way as in the first variation. (Fifth variation)

[0045] As in Fig.As shown in Figure 8, the front layer end section 55b can be located between the section 52 covering the rear surface and the sealing layer 20, and the shielding section 70 can be provided on the rear surface of the material 40 protecting the rear surface. In this case as well, the rear extension section 56 can be omitted, and the rear barrier layer 50B can consist solely of the section 52 covering the rear surface. Furthermore, in this example, the flange section 32 of the material 30 protecting the front surface can be omitted. [Aspects]

[0046] The person skilled in the art will understand that the exemplary embodiments described above are specific examples of the following aspects. (Aspect 1)

[0047] A functional roof with: a functional layer that has a predetermined function; a sealing layer that seals the functional layer and has a front surface, a rear surface and a surrounding end surface that connects the front surface and the rear surface and surrounds a perimeter of the functional layer in a ring-like manner; a material protecting the front surface, which is formed from a resin with a light transmission and which protects the front surface of the sealing layer; a material protecting the back surface, which protects the back surface of the sealing layer; and a barrier layer covering the sealing layer, wherein the barrier layer a front-side barrier layer located between the sealing layer and the material protecting the front surface, and has a rear barrier layer located between the sealing layer and the material protecting the rear surface, the front barrier layer has a section covering the front surface, which covers an entire region of the front surface of the sealing layer, the rear barrier layer has a section covering the rear surface, which covers an entire region of the rear surface of the sealing layer, and the front barrier layer has a front projecting section that extends from an edge section of the section covering the front surface and is located away from the material protecting the front surface, and the front projecting section is joined to the rear barrier layer in a state of covering the surrounding end surface, or the rear barrier layer has a rear projecting section that extends from an edge section of the rear

[0048] The section covering the area protrudes and is located away from the material protecting the rear surface, and the rear protruding section is joined with the front barrier layer in a state of covering the surrounding end surface.

[0049] In this functional roof, the barrier layer has the section covering the front surface, the section covering the rear surface, and the front projecting section or the rear projecting section, and consequently, the formation of air bubbles in the sealing layer caused by gas or water vapor penetrating the sealing layer is suppressed. (Aspect 2)

[0050] Functional roof according to aspect 1, wherein the rear barrier position has the rear projecting section, and the rear protruding section an end-surface-covering section that covers the end surface, and has a rear layer end section that is joined to the front barrier layer. (Aspect 3)

[0051] Functional roof according to aspect 2, wherein the front barrier layer has a front extension section that extends from the edge section of the section covering the front surface and is joined to the material protecting the front surface, and the rear layer end section is joined to the front extension section. (Aspect 4)

[0052] Functional roof according to aspect 2, wherein the rear layer end section is located between the section covering the front surface and the sealing layer. (Aspect 5)

[0053] Functional roof according to aspect 1, wherein the front barrier position has the front projecting section, and the front protruding section an end-face-covering section that covers the surrounding end face, and has a front layer end section that is joined to the rear barrier layer. (Aspect 6)

[0054] Functional roof according to aspect 5, whereby the rear barrier layer has a rear extension section that extends from the edge section of the section covering the rear surface and that is joined to the material protecting the rear surface, and the front end section is joined to the rear extension section. (Aspect 7)

[0055] Functional roof according to aspect 5, wherein the front layer end section is located between the section covering the rear surface and the sealing layer. (Aspect 8)

[0056] Functional roof according to one of aspects 1 to 7, wherein the material protecting the front surface, the section covering the front surface, the sealing layer, the section covering the rear surface and the material protecting the rear surface have a shape that is curved to project in a direction from the material protecting the rear surface to the material protecting the front surface. (Aspect 9)

[0057] Functional roof according to one of aspects 1 to 8, wherein the flexural stiffness of the material protecting the front surface is higher than the flexural stiffness of the material protecting the rear surface. (Aspect 10)

[0058] A manufacturing process for a functional roof comprising a functional layer having a predetermined function, a sealing layer sealing the functional layer, a front surface protecting material formed from a resin having a light transmittance and protecting a front surface of the sealing layer, a rear surface protecting material protecting a rear surface of the sealing layer, and a barrier layer covering the sealing layer, wherein the barrier layer comprises a front barrier layer located between the sealing layer and the front surface protecting material, and a rear barrier layer located between the sealing layer and the rear surface protecting material, comprises the following steps: a stack-forming step of forming a stack by stacking the material protecting the front surface, the front barrier layer, a plurality of sealing layer-forming materials that shape the sealing layer, and the functional layer that is located in the plurality of sealing layer-forming materials, the rear barrier layer, and the material protecting the rear surface; a union step of forming the sealing layer that seals the functional layer by heating the stack and thus softening the multitude of sealing layer-forming materials, and forming the barrier layer that covers the sealing layer by joining the front barrier layer and the rear barrier layer; and a hot pressing step, after the joining step, of pressing the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface, while the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface are heated, so that the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface have a shape that is bent to protrude to one side in a direction in which the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the back surface are stacked. (Aspect 11)

[0059] Manufacturing process of the functional roof according to aspect 10, wherein In the stack-forming step, the stack, which furthermore has a hard layer, is formed, wherein the hard layer is formed from a material that has a higher hardness than a material from which the material protecting the front surface is formed, and covers a front surface of the material protecting the front surface, and In the hot pressing step, the hard layer layer, the material protecting the front surface, the sealing layer, the barrier layer and the material protecting the rear surface are pressed while being heated.

[0060] It is to be understood that the embodiments disclosed herein are presented for illustrative purposes and in every respect as examples, and are not to be used for limitation. The scope of the present invention is not defined by the preceding description of the embodiments, but is defined by the claims and further includes all modifications within the content and scope equivalent to the claims. REFERENCE MARK LIST 1 functional roof 10 functional layers 10a first main area 10b second main area 10c end surface 20 sealing layer 30 material protecting the front surface 32 Flange section 40 material protecting the back surface 42 Flange section 50 barrier layer 50A front barrier position 50B rear barrier position 50°C front adhesive layer 50D backside adhesion layer 51 Section covering the front surface 52 Section covering the rear surface 53 reverse side leading section 53a end-covering section 53b reverse layer end section 54 front extension section 55 front protruding section 55a end-covering section 55b front layer end section 56 rear extension section 70 Shielding section 101 plate-like component 102 Location S1 front surface S2 rear surface S3 surrounding end surface QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] JP 2014-207362

[0004]

Claims

[1] Functional roof with: a functional layer that has a predetermined function; a sealing layer that seals the functional layer and has a front surface, a back surface, and a surrounding end surface that connects the front surface and the back surface and surrounds a periphery of the functional layer in a ring manner; a front surface protecting material formed of a resin having light transmittance and protecting the front surface of the sealing layer; a back surface protecting material that protects the back surface of the sealing layer; and a barrier layer covering the sealing layer, wherein the barrier layer a front barrier layer located between the sealing layer and the front surface protecting material, and has a back barrier layer located between the sealing layer and the material protecting the back surface, the front barrier layer has a front surface covering portion that covers an entire region of the front surface of the sealing layer, the back barrier layer has a back surface covering portion that covers an entire region of the back surface of the sealing layer, and the front-side barrier layer has a front-side protruding portion that protrudes from an edge portion of the front-surface covering portion and is located away from the front-surface protecting material, and the front-side protruding portion is joined to the back-side barrier layer in a state of covering the surrounding end surface, or the back-side barrier layer has a back-side protruding portion that protrudes from an edge portion of the back-surface covering portion and is located away from the back-surface protecting material, and the back-side protruding portion is joined to the front-side barrier layer in a state of covering the surrounding end surface. [2] Functional roof according to claim 1, wherein the rear barrier layer has the rear protruding section, and the rear protruding section an end-face covering portion covering the end face, and has a rear layer end section which is joined to the front barrier layer. [3] Functional roof according to claim 2, wherein the front barrier layer has a front extension portion extending from the edge portion of the front surface covering portion and joined to the front surface protecting material, and the rear layer end section is joined to the front extension section. [4] A functional roof according to claim 2, wherein the rear layer end portion is located between the front surface covering portion and the sealing layer. [5] Functional roof according to claim 1, wherein the front barrier layer has the front projecting section, and the front protruding section an end-face covering portion covering the surrounding end face, and has a front layer end section which is joined to the rear barrier layer. [6] Functional roof according to claim 5, wherein the rear barrier layer has a rear extension portion extending from the edge portion of the rear surface covering portion and joined to the rear surface protecting material, and the front layer end section is joined to the rear extension section. [7] A functional roof according to claim 5, wherein the front side layer end portion is located between the rear surface covering portion and the sealing layer. [8] A functional roof according to any one of claims 1 to 7, wherein the front surface protecting material, the front surface covering portion, the sealing layer, the rear surface covering portion and the rear surface protecting material have a shape bent to protrude in a direction from the rear surface protecting material to the front surface protecting material. [9] Functional roof according to one of claims 1 to 7, wherein a bending rigidity of the front surface protecting material is higher than a bending rigidity of the rear surface protecting material. [10] A manufacturing method of a functional roof comprising a functional layer having a predetermined function, a sealing layer sealing the functional layer, a front surface protecting material formed of a resin having light transmittance and protecting a front surface of the sealing layer, a rear surface protecting material protecting a rear surface of the sealing layer, and a barrier layer covering the sealing layer, the barrier layer comprising a front barrier layer located between the sealing layer and the front surface protecting material, and a rear barrier layer located between the sealing layer and the rear surface protecting material, the manufacturing method comprising the following steps: a stack-forming step of forming a stack by stacking the front surface protecting material, the front barrier layer, a plurality of sealing layer forming materials that form the sealing layer, and the functional layer located in the plurality of sealing layer forming materials, the back barrier layer, and the back surface protecting material; a joining step of forming the sealing layer that seals the functional layer by heating the stack and thus softening the plurality of sealing layer forming materials and forming the barrier layer that covers the sealing layer by joining the front-side barrier layer and the back-side barrier layer; and a hot-pressing step, after the joining step, of pressing the front surface protecting material, the sealing layer, the barrier layer, and the back surface protecting material while heating the front surface protecting material, the sealing layer, the barrier layer, and the back surface protecting material, so that the front surface protecting material, the sealing layer, the barrier layer, and the back surface protecting material have a shape bent to protrude to one side in a direction in which the front surface protecting material, the sealing layer, the barrier layer, and the back surface protecting material are stacked. [11] A method of manufacturing the functional roof according to claim 10, wherein in the stack-forming step, the stack is formed further having a hard sheet layer, wherein the hard sheet layer is formed of a material having a higher hardness than a material from which the front surface protecting material is formed and covers a front surface of the front surface protecting material, and In the hot-pressing step, the hard sheet layer, the front surface protecting material, the sealing layer, the barrier layer, and the back surface protecting material are pressed while being heated.

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