Multi-layer exterior cladding

Abstract

To provide a multilayer exterior material which reduces a use amount of an expensive material by combining a required design and performance of strength and the like, by making the multilayer exterior material of at least two types, and which minimizes the sharp rise in price.SOLUTION: In a multilayer exterior material 1, a core material 2 in which mutually engageable molding parts 22, 23 are provided at side edges of a surface plate part 21, and a plurality of opening hole parts 210 are provided at the surface plate part 21, and a surface material 3 which includes a surface-like part 31 comprising substantially the same cross section as the surface plate part 21 of the core material 2, and in which the side edges extend in the molding parts 22, 23 of the core material 2, and which is held in an engaged state of the core materials 2, 2 with each other are integrated.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a multi-layer cladding material comprising at least two types of layers, which combines required performances such as design and strength to reduce the consumption of expensive materials and minimize price increases Multi-layer exterior cladding .

Background Art

[0002] Conventionally, various cladding materials used for roofs and the like are assumed to be made of various materials and have various plate thicknesses, and are variously selected according to performance, designability and the like in the use environment, and used as appropriate. For example, as metal plate materials, many types of materials are known, including ferrous steels such as stainless steel and non-ferrous metals such as aluminum; similarly, many types of materials are also known for ceramic plate materials and resin plate materials. In general, materials with high performance characteristics are correspondingly expensive.

Summary of the Invention

Problem to be Solved by the Invention

[0003] However, the required various conditions do not always match the price, and there are many cases where the material cannot be adopted as desired. In addition, when laminating a plurality of plates (materials), curing is required in a pressure-bonded state (pressurized state), so an increase in manufacturing cost has been unavoidable.

[0004] Therefore, an object of the present invention is to provide a multi-layer cladding material comprising at least two types of layers, which combines required performances such as design and strength to reduce the consumption of expensive materials and minimize price increases Multi-layer exterior cladding .

Means for Solving the Problem

[0005] The present invention has been proposed in view of the above, and relates to a face plate portion One side has an engagement groove that opens to the side, and a concave portion formed at its tip that is recessed toward the back side, while the other side has an insertion piece that is inserted into the engagement groove.Furthermore, it is provided with a core material which is a metal plate-like material with a plurality of openings in the face plate portion, and a surface portion which has substantially the same cross-section as the face plate portion of the core material, and whose side edges are the core material The engagement groove and the insertion piece The present invention relates to a multi-layer exterior material characterized by integrating a surface material that extends in a certain direction and is sandwiched between the core materials in an engaged state.

[0006] Furthermore, the present invention also proposes a multi-layer exterior material characterized in that a non-metallic sheet material is disposed on the back surface of the core material as a backing material. [Effects of the Invention]

[0008] The multi-layer exterior material of the present invention has a panel portion with multiple openings. One side has an engagement groove that opens to the side, and a concave portion formed at its tip that is recessed toward the back side, while the other side has an insertion piece that is inserted into the engagement groove. Since the core material, which is a metal plate-like material, and the surface material are integrated, for example, the opening can be used as a part for fixing fasteners such as screws and bolts. The engagement groove and the insertion piece It can be used to sandwich adjacent multi-layer exterior materials in an engaged state, and can be applied as an exterior material for various walls and roofs. Moreover, since the surface material is sandwiched in an engaged state with the core materials, a sense of unity is maintained without delamination from the core material. Furthermore, even if the bonding means such as adhesive deteriorates or becomes defective over time, delamination of the surface material from the core material can be minimized. Furthermore, the openings also serve as air vents when the surface material and core material are bonded together, making it possible to mold the material without curing.

[0009] Furthermore, if a non-metallic sheet material is provided as a backing material on the back of the core material, the aforementioned effect (the openings contributing to curing) also applies when integrating this backing material and the core material by adhesive, etc., and since the openings also act as air vents, molding becomes possible without curing. Moreover, the sheet material prevents adhesive from adhering to the molding machine, etc., even if it seeps through the openings to the back, thus enabling molding without curing. [Brief explanation of the drawing]

[0011] [Figure 1](a) A cross-sectional view showing one embodiment of the connection structure for multi-layer exterior materials of the present invention, and (b) A cross-sectional view showing a part thereof in an enlarged view. [Figure 2] (a) A rear view showing the multi-layer exterior material of the present invention before molding, and (b) A perspective view showing each layer separated. [Best Mode for Carrying Out the Invention]

[0012] The multi-layer exterior material of the present invention has a face panel portion One side has an engagement groove that opens to the side, and a concave portion formed at its tip that is recessed toward the back side, while the other side has an insertion piece that is inserted into the engagement groove. Furthermore, the device is provided with a core material which is a metal plate-like material with a plurality of openings in the face plate portion, and a surface portion which has substantially the same cross-section as the face plate portion of the core material, and whose side edges are the same as the core material Engagement groove and insertion piece The present invention is characterized by integrating a surface material that extends in a certain direction and is sandwiched between the core materials in an engaged state. Furthermore, this multi-layered exterior material can be used for various types of walls and roofs, and when used as a roofing material, for example, it can be any type that is commonly used, such as horizontal or vertical roofing.

[0013] The core material is a plate-like material whose material, thickness, etc., are selected after the exterior structure has been constructed, depending on the required strength and various resistances. For example, known metal materials such as surface-decorated steel sheets, laminated steel sheets, plated steel sheets, stainless steel sheets, aluminum alloy sheets, titanium alloy sheets, copper sheets, brass sheets, and lead sheets can be used as appropriate. Furthermore, in the illustrated embodiment described later, a perforated plate is used for the panel portion of this core material that has multiple openings. However, the shape, number, size, and arrangement of the openings are not restricted as long as performance such as strength is ensured. These openings serve as air vents when the surface material and core material are integrated by adhesive or other means, making it possible to mold without curing. These openings can also be used as parts for fixing fasteners such as screws and bolts.

[0014] Furthermore, this core material has a configuration in which molded portions are formed on the side edges of the faceplate portion, which is provided with multiple openings, and these molded portions are not particularly limited as long as they can be engaged with each other. The illustrated embodiment described later shows an example of mutually engageable molded parts, in which one molded part has an engagement groove that is open on the side, and the other molded part has an insertion piece that is inserted into the engagement groove, but this is not particularly limited.

[0015] The surface material is a plate-like material whose color, material, etc., are selected after the exterior structure is constructed, according to the required design (decoration) and waterproofing performance (non-permeable performance), and has a planar portion having substantially the same cross-section as the face plate portion of the core material, with its side edges extending to the molded portion of the core material, and being sandwiched between the core materials in an engaged state. Since the planar portion of this surface material will be the exterior surface, various metal sheet materials or non-permeable sheet materials with decorative properties are used as appropriate, and it is desirable that they be able to be integrally superimposed and connected with adjacent surface materials by various bonding means including adhesive bonding, fusion bonding, welding, etc., or by well-known mechanical fixing, etc. When metal sheet materials are used, both the core material and this surface material are metal sheet materials, but as the core material, a general-purpose, inexpensive, high-strength sheet material of 0.5 mm or more is used, and as the surface material, a thin sheet material of about 0.35 to 0.5 mm is used, which has been treated with a special surface treatment or is expensive, such as titanium. As the non-permeable sheet material, PVC-based, olefin-based plastic sheet materials or other known waterproof sheet materials can be used, or a composite waterproof sheet with a resin layer such as PVC laminated with a core or reinforcing body such as polycloth, felt layer, or glass fiber base fabric may be used, and a composite waterproof sheet with excellent fire resistance (fire prevention) performance is particularly desirable.

[0016] Furthermore, the side edges (side edges, clamping portions) of the planar portion of this surface material are the core material Engagement groove and insertion piece This portion extends and is held between the core materials in an engaged state. In other words, by being held in place, a sense of unity is maintained, preventing delamination from occurring with the core materials. Furthermore, even if the bonding means such as adhesive deteriorates or becomes defective over time, delamination of the surface material from the core material can be minimized. The illustrated embodiment described later is as follows: The configuration includes an engagement groove that opens to the side on one side, a concave portion formed at its tip that recesses toward the back side, and an insertion piece formed on the other side that is inserted into the engagement groove, Interlocking molded parts asAs illustrated, the holding portion extends to these molded portions and is held in the engaging groove in the engaged state, whereby peeling of the surface material can be minimized. It should be noted that any shape providing a holding configuration is acceptable, and the end portion may be engaged with the core material, for example by folding back.

[0017] The core material and the surface material are integrated by adhesion, fusion, welding or the like, and the adhesion using an adhesive or the like may be performed over the entire surface or may be performed partially. A plurality of openings are formed in the core material, and by using a thin metal plate, a water-impermeable sheet material or the like as the surface material integrated on the surface side of the core material, the openings are blocked to prevent rainwater from entering the indoor side.

[0018] For the core material and the surface material, various bonding means including adhesion, fusion, welding and the like may be developed over substantially the entire surface (provided that at least one side is preferably in a non-bonded state), that is, they may be bonded substantially over the entire surface, or may be partially bonded, for example in a dot shape or a stripe shape. However, in order to maintain the integrated state, strong adhesion without peeling is required, particularly in partial adhesion with a small adhesion area, but there is no limitation on specific bonding means. Further, the bonding may be achieved by thermal bonding, thermal fusion or the like, and it is preferable that the bonding or fusion is performed at a heat amount higher than that occurring in nature.

[0019] It should be noted that the illustrated embodiment described below includes molded portions that allow adjacent exterior materials to engage with each other, and also includes a fixing portion to a substrate, but there is no particular limitation on either the fixing portion or the molded portions.

[0020] Regardless of whether the substrate is newly installed or existing, there is no limitation on materials including RC, wooden structure, steel frame, etc. even for newly installed substrates, and the present invention can be applied to various existing roofs such as waterproof roofs, metal roofs, tile roofs, etc. for existing roofs. Further, a foamed heat insulating material (such as polystyrene) may be arranged on the surface of the substrate.

[0021] Further, when a non-metallic sheet material such as a non-woven fabric sheet, a foamed sheet having heat insulating performance, or a glass fiber sheet is disposed as a back surface material on the back surface of the core material, the above-mentioned action (the openings contribute to curing) is also applied when the back surface material and the core material are integrated by adhesion or the like, and the openings also function as air vents, so that molding can be performed without curing. Moreover, since the sheet material can prevent the adhesive from adhering to a molding machine or the like even when the adhesive flows from the openings to the back surface, molding can be performed without curing. As the back surface material (non-metallic sheet material), a non-woven fabric sheet, a foamed sheet having heat insulating performance, a glass fiber sheet, or the like is used.

[0022] Furthermore, this Method for manufacturing multi-layer exterior cladding Here is an example: comprising: a step of integrating the surface material, the core material and the back surface material into a composite board; and a step of forming a molded part engageable between exterior cladding members on at least the core side edge of the integrated composite board In some cases , whereby various multi-layer exterior cladding can be manufactured more easily. [Example 1]

[0023] As shown in FIG. 1, the multi-layer exterior cladding 1 according to Example 1 of the present invention has a configuration in which a core material 2 provided with molded portions 22 and 23 that can be engaged with each other on the side edges of a face plate portion 21 and provided with a plurality of openings 210 in the face plate portion 21, and a surface material 3 that is provided with a planar portion 31 having substantially the same cross-section as the face plate portion 21 of the core material 2, has side edges (side edge portions 32 and 33) extending to the molded portions 22 and 23 of the core material 2, and is clamped when the core materials 2 and 2 are engaged with each other are integrated.

[0024] After an exterior structure is constructed, the core material 2 is a plate-shaped material whose material, plate thickness and the like are selected according to the required strength, various resistances and the like, and is a perforated plate made of various metal plate materials with an opening 210 formed in a part thereof. Before molding, as shown in FIG. 2, the core material 2 is overlapped and bonded to the surface material (3) with an adhesive (not shown). In Figure 2, the core material (2) is shown with not only the surface material (3) but also the backing material (4) superimposed on it. The state without this backing material (4) is the multi-layer exterior material 1 used in Figure 1 before molding.

[0025] The side edges of the faceplate portion 21, which is provided with multiple openings 210 in the core material 2, have molded portions 22 and 23 that can engage with each other. In this embodiment 1, the panel portion 21 is formed in a substantially flat manner, although the central portion is slightly recessed on the back side than the side edge portion, by providing slight steps 211, 211 at the boundary between the side edge portion and the central portion.

[0026] The molded portion 22 formed on one side of the faceplate portion 21 (the right side in Figure 1) is configured to include an engagement groove 222 and a concave portion 224, while the molded portion 23 formed on the other side (the left side in Figure 1) is an insertion piece that engages with the engagement groove 222 in a plug-in manner. In this one molded portion 22, the side edge of the faceplate portion 21 is continuously folded back, forming an overlapping projection 221, a laterally extending portion 223, and an engagement groove 222 between them. Furthermore, a concave portion 224 that recesses toward the back side is formed at the tip of the extending portion 223. Furthermore, the recessed portion 224 is molded so that the opening portion 210 shown in Figure 2 is located approximately in the center. In other words, when molding the molded portion 224, the recessed portion 224 is formed so that the opening portion 210 is located in the center.

[0027] The surface material 3 is a plate-like material whose color, material, etc., are selected after the exterior structure has been constructed, depending on the required design (decoration) and waterproofing performance (non-permeable performance). Various thin metal plates and non-permeable sheet materials are used, and as shown in Figure 2, it is formed to be narrower than the core material 2 and is made of a material that has elasticity in the thickness direction. This surface material 3 has a planar portion 31 that has substantially the same cross-section as the faceplate portion 21 of the core material 2, and its side edges (side edge portions 32, 33) extend to the molded portions 22, 23 of the core material 2, and are sandwiched together when the core materials 2, 2 are engaged with each other.

[0028] These core material 2 and surface material 3 are bonded together almost entirely with an adhesive (not shown) to polymerize and integrate. During molding, the surface material 3 follows the shape-retaining core material 2, with the surface portion 31 following (attaching) to the faceplate portion 21 of the core material 2, and the side edge portions 32 and 33 following (attaching) to the molded portions 22 and 23. However, as mentioned above, the surface material 3 is formed to be narrower than the core material 2, so the side edge portion 32 does not reach the tip of the molded portion 22. Note that the reference numeral 32a in the figure refers to the portion folded back to the back side (clamping portion). Therefore, although the right end of Figure 1(a) shows the molded portion 22 and the side edge portion 32 before connection, the side edge portion 32 is attached to the protruding portion 221 of the molded portion 22, but the side edge portion 32 is not attached (present) to the extended portion 223 or the concave portion 224 beyond that point.

[0029] Then, with the insulation material 5 interposed on the back side, the molded portion 22 of the multi-layer exterior material 1 located on the left and the molded portion 23 of the multi-layer exterior material 1 located on the right are connected so as to engage with each other. In this embodiment 1, first, the fastener 6A is positioned above the concave portion 224 of the multi-layer exterior material 1 located on the left, and is fixed in place with its head hidden in the concave portion 224 and with the waterproofing material 6B interposed. Furthermore, the insulation material 5 has a side end 51 that gradually thins towards the edge and the other side end 52 that butt together to form an insulation layer, and a concave mounting recess 511 is formed on the surface side of the side end 51, so the position of the concave portion 224 can be easily fixed when it is installed.

[0030] Subsequently, the multi-layer exterior material 1 located on the right side is brought forward so as to slide over the insulation material 5 from right to left, and the molded part 23, which is an insertion piece, is engaged with the engagement groove 222 of the fixed molded part 22 by inserting it. As described above, the engagement groove 222 has the side edge portion 32 (clamping portion 32a) of the surface material 3 interposed on the upper side. When the molded portion 23 is inserted therein, the adjacent multi-layer exterior material 1 covers the surface of the fastener 6A, and the side edge portion 33 and the clamping portion 32a are pressed against each other within the engagement groove 222, so that a stable mounting state can be maintained.

[0031] Thus, the multi-layer exterior material 1 of the present invention has a side edge of a panel portion 21 which has multiple openings 210. Molded section 22 (engagement groove 222), molded section 23 (insertion piece) Since the core material 2 and surface material 3 formed by this structure are integrated, the opening 210 can be used as a part for fixing fasteners 6A such as screws or bolts. Molded section 22 (engagement groove 222), molded section 23 (insertion piece) It can be used so as to be sandwiched between adjacent multi-layer exterior materials 1,1 in an engaged state, maintaining integrity so that delamination between the core material 2 and the surface material 3 does not occur, and can be applied as an exterior material used for various walls, roofs, etc. Furthermore, the opening 210 also serves as an air vent when the surface material 3 and core material 2 are integrated with adhesive, making it possible to mold without curing.

[0032] Furthermore, since the side edges 32 and 33 follow (attach to) the mutually engageable molded parts 22 and 23, when the molded part 23, which is the insertion piece, is engaged with the engagement groove 222, it is held within the engagement groove 222 in the engaged state, thus minimizing peeling of the surface material 3. In particular, the surface material 3 used in this embodiment 1 has elasticity in the thickness direction, so the side edge 32 (clamping portion 32a) and the side edge 33 are attached in a pressure-contact manner, and are held more stably.

[0033] Furthermore, in this embodiment 1, the connection structure of the multi-layer exterior materials 1,1 is such that a fastener 6A is fixed to the recessed portion 224 with a water-stopping material 6B in between, and adjacent multi-layer exterior materials 1 are attached so as to cover the recessed portion 224, thus exhibiting high waterproof performance even against rainwater intrusion from the surface side. Furthermore, the side edges 32, 33 (clamping portions 32a) of the planar portion 31 of the surface material 3 extend to the molded portions 22, 23 of the core material 2, and are the portions that are clamped when the core materials 2, 2 are engaged with each other.

[0034] Figures 2(a) and 2(b) show the surface material (3), core material (2), and back material (4) before molding, but at this point the aforementioned multiple openings 210 have already been formed in the core material (2). Of these, the core material (2) is formed wider than the surface material (3) to form the molded parts (22) and (23), and the surface material (3) is formed wider than the back material (4) to form the side edges (32, 33). [Explanation of Symbols]

[0035] 1. Multi-layer exterior cladding 2 Core material 21 Face plate section 210 Opening part 211 steps 22 Molding section 221 Protrusion 222 Engagement groove 223 Extension 224 Concave part 23 Molding section (2) Core material before molding (22) Molded part before molding (23) Molded part before molding 3 Surface material 31 Planar part 32 Side edge 32a Clamping part 33 Side edge (3) Surface material before molding (32) Side edge before molding (4) Back material before molding 5. Insulation 6A Fasteners 6B Waterproofing material

Claims

1. A core material is a metal plate-like material having an engagement groove on one side of the faceplate portion that is open on the side, a recessed portion formed at the tip of the engagement groove that is recessed toward the back side, and an insertion piece formed on the other side that is inserted into the engagement groove, and the faceplate portion is provided with a plurality of openings, A multi-layer exterior material characterized by having a surface portion having substantially the same cross-section as the face plate portion of the core material, the side edges of which extend to the engagement groove and insertion piece of the core material, and a surface material which is sandwiched when the core materials are engaged with each other, integrated together.

2. The multi-layer exterior material according to claim 1, characterized in that a non-metallic sheet material is disposed on the back surface of the core material as a backing material.

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