JP3408396B2 - Backing sheet and metal exterior material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backing sheet that is backed on the back surface of a metal-based exterior material used for buildings, mainly for the purpose of heat insulation and fire prevention, and a metal-based exterior material having the backing attached.

[0002]

2. Description of the Related Art Metal-based exterior materials used for buildings, etc.
As a backing sheet, a structure in which a resin foam sheet having flexibility and elasticity is backed for the purpose of heat insulation and prevention of dew condensation is generally known. In recent years, as the backing sheet, a sheet having fire resistance added to its properties such as heat insulation, bendability and elasticity has been used. Since the backing sheet has bendability and elasticity, as shown in FIG. 2 of Japanese Patent Publication No. 5-71377, a metal material is a coil or a flat plate (strip plate).
In this state, after backing, the exterior material is subjected to bending (roll forming). Both backing and bending can be easily performed automatically and continuously by a general-purpose device. By back-attaching to the metal-based exterior material (metal material) before bending as described above, it is not necessary to back-attach manually after forming the exterior material, which is high in both factory production and on-site molding. Productivity can be obtained, resulting in cost reduction. Conventionally, this type of backing sheet generally has a thickness of 4 to 5 mm, but in recent years, a backing sheet having a thickness of about 8 to 10 mm has been used in order to further improve heat insulation performance and sound absorption performance. A backing exterior material is required. On the other hand, as for the exterior material itself, an elastic fitting type exterior material is required in order to improve workability on site and design.

[0003]

However, when a backing sheet having a thickness larger than that of a conventional general product is adopted as a conventionally known exterior material, it is polyethylene foam (PEF).
Even if the resin sheet is typified by (1), its compressive strength also increases compared to the general surface, so unless it is a corrugated exterior material with an extremely simple shape such as a superposition / bolting method, a predetermined design at the time of molding The shape cannot be obtained, and further, a predetermined connection mode cannot be obtained during construction. In particular, in the case of the elastic fitting type exterior material, because of its fixing (holding) method, the peripheral shape of the fixing portion is more complicated and higher dimensional accuracy is required than in the case of a bolting type or engaging type exterior material. It Therefore, in many cases, it is impossible to obtain a predetermined shape, and even if it is obtained, it takes a lot of time to adjust the molding machine, resulting in a marked decrease in productivity. Even if a predetermined shape is obtained, the dimensional accuracy of the exterior material can be obtained when the fixing (holding) tool for the exterior material such as a tight frame comes into surface contact during construction or when the side edges are abutted or polymerized. It will be in the same state as it is not, the predetermined fitting form can not be obtained, the fitting is partially loose, distortion occurs,
In the first place, it may not be possible to fit them. Further, when the backing sheet is a general product of an inorganic fiber sheet typified by glass wool, since it originally has the same molding characteristics as the thick-walled material of the resin sheet, a waveform of an extremely simple shape such as a bolting method is used. Except for the exterior material, after molding the exterior material,
There is a situation in which backing is manually performed while avoiding the fitting portion and the overlapping portion.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and is a backing sheet backed to a metal-based exterior material before folding forming, which is at least heat insulating, elastic and bendable. And a thin portion having a uniform thickness along the bent portion and / or the overlapped portion of the exterior material, and a thick portion along the portion other than the bent portion and / or the overlapped portion of the exterior material. We propose a backing sheet and a metal-based exterior material backing the same. The metal-based exterior material of the present invention (hereinafter referred to as exterior material) is a roofing roof panel material or a vertical exterior wall material used for a roof or an outer wall of a building, and more specifically, a roof bar and a folded board. , Siding.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The backing sheet of the present invention is generally composed of a thin portion along the bent portion and / or the overlapping portion of the exterior material and a thick portion along the other portion. The backing sheet is not particularly limited in its material as long as it has at least heat insulation, elasticity, and bendability, and for example, closed-cell foam such as highly filled inorganic foam, highly flame-retardant polyethylene foam, and cross-linked expanded polyethylene. -Based foam sheet (apparent density about 0.025-0.05g / cm
3) or an inorganic fiber sheet (apparent density of about 0.13 g / cm 3) such as glass fiber nonwoven fabric can be used. The elasticity and bendability may be such that at least these backing sheets can be bent and formed without trouble in a state where the backing sheet is backed on an exterior material (metal material). Also,
When a resin-based foam sheet is used as a backing sheet, its thin portion is preferably about 3 or 4 mm, which has been confirmed to be the most commonly used conventional exterior material and has no problem in molding. There is no particular limitation on the thickness (thickness) of the portion as long as it is thicker than the thin portion, but it is preferably about 8 to 10 mm or more. The thickness of a general PEF product is 4 mm. On the other hand, when an inorganic fiber sheet is used as a backing sheet, the thin part has a thickness of 2.5, 3 m.
It is preferable that the thickness is about m, and the thick portion is 8 to 10 m.
It is preferably m or more. Therefore, it is preferable that the thin portion in the backing sheet of the present invention has a thickness of 1/2 or less of the thickness of the thick portion. As a method of manufacturing such a backing sheet, a thin portion and a thick portion are formed by cutting or changing the raw material density for each portion.

The exterior base material for backing the backing sheet (for convenience, distinguished from the exterior material integrated with the backing sheet) is not limited to any particular material, but may be a surface decorative steel sheet, a laminated steel sheet, Plated steel plate, stainless steel plate,
A known metal material such as an aluminum alloy plate, a titanium alloy plate, a copper plate, a brass plate, or a lead plate is formed into a predetermined shape by roll forming or other means. The exterior base material may be made of a composite material instead of a single material, for example, a composite material in which a solar cell is attached to a substantially flat portion on the surface side thereof. The material thickness of the exterior base material is not particularly limited, and is generally about 0.4 to 1.6 mm, and the demand center plate thickness of the exterior base material is generally 0.4 to 0.8 mm. . Further, the exterior base material is not particularly limited in its shape, connection, and fixing method as long as it has a bent portion for connection or a superposed portion on at least both side edges, and it is conventionally known as will be described later. Any of the fitting type, the overlapping type, the engaging type and the like may be used.

The present invention will be described below with reference to the drawings.
First, FIG. 1 shows a backing sheet 1 of the present invention [FIG. 1 (b)], an exterior material 3 obtained by backing the backing sheet 1 on an exterior base material 2 [FIG. 1 (a)], and the exterior. The exterior structure constructed using the material 3 [FIG.

The backing sheet 1 of the illustrated embodiment has thin portions 11, 11 at both ends in the width direction and a thick portion 12 at the central portion.
Is formed, and one side of both parts 11 and 12 is continuous so as to be flush (the other side is stepped). Since this one flat surface is attached to the back surface of the metal material for the exterior base material having the same width dimension, the attachment processing can be easily performed automatically and continuously by a general-purpose device. The adhered backing sheet 1 has elasticity and bendability, and thus is integrally bent with the exterior base material 2. Then, when the exterior base material 2 is folded and formed, the thin-walled portion 11 of the backing sheet 1 includes the fitting portion 211 formed on the rising portion 21 of the exterior base material 2, the mounting portion 212, the bent portion 213, and the like. Along the back surface of the backing sheet 1, the thick portion 12 of the backing sheet 1 is the other portion, that is, the back surface of the face plate portion 22 of the exterior base material 2 and the rising portion 21.
Along the inclined surface portion 214 and the like.

Since the backing sheet 1 is provided with the thin portion 11 which does not hinder the bending and forming, the backing sheet 1 is automatically and continuously attached to the exterior base material 2 by a general-purpose device as described above. After performing the process easily, it is possible to easily perform the bending and forming without using special care to produce the exterior material.

The exterior base material 2 of the illustrated embodiment has an inclined rising portion 21 having a fitting portion 211 having a substantially V-shaped cross section.
21, a substantially horizontal mounting portion 212 is formed on the upper end of the fitting portion 211 via an inclined portion.
Is a folded plate roof plate formed by forming a bent portion 213 that is bent in a U-shape at the tip edge of, and a bar-shaped mountain portion is formed by the adjacent rising portions 21 and 21 in its installed (connected) state. It is a configuration. The connection bent portion of the exterior base material 2 is a portion of the rising portion 21 from the fitting portion 211 to the bent portion 213.

The exterior material 3 in which the backing sheet 1 is backed on the exterior base material 2 has a heat insulating property and a dew condensation preventing property by the backing sheet 1.
Soundproof and fireproof, but backing sheet 1 used
Further functionalities are imparted by the material properties of. still,
As a method of attaching the backing sheet 1 to the exterior base material 2,
Thermoplastic backing sheet 1, or so-called heat laminating method, outer backing material in which the backing sheet 1 on which a heat-activatable primer or heat-sensitive adhesive layer is formed and the outer backing material 2 are heated and bonded with a heater or hot air. A so-called adhesive laminating method or the like in which 2 and the backing sheet 1 are bonded with an adhesive is known, but the method is not particularly limited.

The frame 4 for constructing the exterior structure of FIG. 1 (c) together with the exterior material 3 is a substantially gate-shaped frame lower member 40 formed by bending a relatively thick short width material, and a front and rear member. In addition, the receiving members 51, 51 are integrally combined with the frame upper member 5 having a substantially U-shaped cross section in which the receiving members 51, 51 are upright. The receiving piece 51 of the upper frame member 5 has an outer portion on which the fitting portion 2 of the exterior base material 2 is fitted.
11, a concave fitting portion 511 that elastically fits is formed, and an upper step of the stepwise upper edge supports the back surface of the mounting portion 212 of the exterior material 3, and a lower step is the exterior. It is a groove portion 513 for engaging the bent portion 213 of the material 3.
Note that the frame 4 is a member known as a conventionally known hanging member or a tight frame, and if the frame 4 is basically configured to receive and support the exterior material 3, how can it be fixed (connected) or the like? It may be formed in the above manner, and a combination product of a plurality of members is also included. The frame 4 is usually formed by pressing a stainless steel plate or a plated steel plate having a size of about 0.6 to 3.2 mm depending on the size of the exterior base material 2 and the required strength. Sometimes used.

In the exterior structure of FIG. 1 (c), the cover material 6 for covering the space between the adjacent exterior materials 3 and 3 is widened downward on the left and right side edges of the adhered portion 61. An inclined side piece 62 is formed, and a side piece 6 is formed at the lower end of the side piece 62.
2 has a configuration in which a held portion 63 that bends in a folded shape is formed on the inner side of 2. The held portion 63 is the fitting portion 21 of the exterior material 3.
It is elastically fitted and held on the back surface of 1. The cover material 6 is a member that covers the space between the exterior materials 3 and 3. The shape of the cover material 6 is not particularly limited, and is formed of the same material as the exterior base material 2. Although not shown, a backing material of the same material as the backing material 1 or another material is attached to the back surface of the cover material 6 to provide heat insulation, dew condensation prevention, soundproofing,
Fireproof performance may be added.

In a fitting type exterior structure such as the exterior structure of FIG. 1 (c), if a thick uniform backing sheet is used as a whole, a contact portion with the frame 4 and a bent portion 2 of the exterior material 3 are used.
Due to the elasticity of the backing sheet, 13 cannot be fixed at a predetermined position, and a sufficient fitted state cannot be obtained.
On the other hand, the backing sheet 1 of the present invention is provided with the thin portion 11 along the bent portion for connecting the exterior material 3,
Since the thin portion 11 has a small repulsive force due to elasticity as well as the thickness, a predetermined fitting form can be obtained without affecting the connection of the exterior material 3 and fitting in this case.

FIG. 2 shows variations of the exterior material 3 (strictly speaking, the exterior material 3 before molding) on which the backing sheet 1 of the present invention is backed. That is, the exterior material 3 of the present invention has the backing sheet 1 on the back surface of which the thin portion 11 and the thick portion 12 are continuous and have a uniform thickness as shown in the above-mentioned embodiment or FIG. The entire surface may be backed, or the backing sheet 1 in which the thickness of the thick portion 12 is tapered toward the thin portion 11 as shown in FIGS. It may be worn. It should be noted that the exterior material 3 of FIG. 1B becomes close to the frame 4 by the amount of the tapered portion when used in the exterior structure of FIG. 1C, for example. Further, as shown in FIG. 2 (c), the backing sheet 1 may not be backed on the entire surface of the exterior material 3, but may be a part which is not partially attached. In the backing sheet 1 of the illustrated embodiment, the backing sheet 1 is not backed on only one edge, but both edges may be formed with a portion which is not backed. An exterior structure using such an exterior material 3 is shown in FIGS.

In FIG. 3, the inner goby portion 32 formed on the end portion of the backing sheet 1 which is backed is covered with the outer goose portion 31 formed on the end portion which is not backed. However, in order to clarify the configuration of the exterior material 3 itself and the assembling of the respective portions of both the goby portions 31 and 32, a cross-sectional view between the frames supporting the exterior material 3 is shown. It was The exterior material 3 and the exterior structure are the exterior material and the exterior structure proposed by the present applicant in Japanese Patent Application No. 8-266826, and enhance the certainty of connection by elastic fitting, especially between the frames. The purpose is to ensure the fitting. Then, the outer goby portion 31 has a fitting portion 311 at the end edge, and an abutted portion 312 on the inner surface on the side of the face plate portion 33,
The inner goby portion 32 comes into contact with the abutted portion 312 of the outer goby portion 31 at least at the time of fitting work at the end edge so that both the goby portions 31,
The contact portion 321 that regulates the positional relationship between the two and the fitted portion 322 that fits with the fitting portion 311 of the outer goby portion 31 are provided on the outer surface of the face plate portion 33 side.

The outer goby portion 31 in the illustrated embodiment is formed by bending the left and right lower ends of a substantially umbrella-shaped cover portion 313 toward the cover portion 313 in a V shape, and is bent in an outward V shape. The upper inner surface of the portion is the fitting portion 311, and the inner surface of the recess formed by the lower half of the inner cover portion and the upper portion of the dogleg-shaped bent portion is the contacted portion 312. The backing sheet 1 (thin portion) is backed on the back surface of the contacted portion 312 and the covering portion 313 of the outer goby portion 31. On the other hand, the inner goby portion 32
Is bent so that the lower end on the outer side and the lower end on the inner side of the central left-right asymmetrical ridge-shaped engaging portion 323 are respectively expanded outward and downward, and further on the inner side (face plate portion 33 side). The lower end of the expanded portion is bent in a V shape toward the ridge-shaped engaging portion 323. The upper outer surface of the V-shaped bent portion on the inner side (face plate portion 33 side) is the fitted portion 322, and the tip of the outer widened portion is folded back from the upper side to make contact with the contact portion 321. Was formed. The expanded portion on the outer side where the contact portion 321 is formed is formed in a flip-up shape in the single product state as compared with the position in the assembled state. The ridge-like engaging portion 323 of the inner seam 32 is provided on the back surface with the backing sheet 1 (thin portion 1
1) is backed, and the backing sheet 1 (thin portion 11) on the back surface of the contact portion 321 is exposed. Therefore, the contact between the contact portion 321 and the contacted portion 312 is caused by the backing sheet 1
As a result of the mutual contact, the elasticity of each of the goby portions 31 and 32 regulates the positional relationship more reliably.

The exterior material 3 used in the exterior structure of FIG.
Is provided with a mountain-shaped projection 331 on the face plate portion 33. The mountain-shaped projection 331 is not for connection, but the rising angle is changed to absorb the expansion and contraction of the face plate portion 33 in the width direction, or the face plate portion 33 ( The backing sheet 1 on the back surface is also a thin portion 11 in order to prevent the (valley) from rising. As described above, the thin portion 11 of the backing sheet 1 of the present invention may be appropriately formed at a position other than along the bent portion for connection of the exterior material 3 or the overlapping portion.

Further, the backing sheet 1 of the present invention is not limited to the fitting type exterior material 3, but the goose fastening type shown in FIG. 5 and the engagement type exterior material 3 shown in FIGS. It can be used for the superposing / bolting type exterior material 3 shown in FIG. 9, and the fixing method is not particularly limited, but as described above, particularly when it is used for the fitting type exterior material 3, a remarkable effect is exhibited.
Incidentally, 31 in FIGS. 5 and 6 to 9 is an outer goby portion, 32
Is an inner goby portion, 33 is a face plate portion, 34 is an inclined surface portion,
Reference numeral 35 is an engaged portion, 38 is an outer overlapping portion, 37 is an inner overlapping portion, and 5 is an engaging frame upper member.
The same reference numerals are given to the members and parts described in the above embodiments.

The present invention has been described above based on the embodiments of the drawings, but the present invention is not limited to the above embodiments, and may be modified in any manner as long as the configuration described in the claims is not changed. It can be carried out. For example, the face plate portion of the exterior material of the present case may be subjected to a saw wave treatment if necessary.

[0021]

In summary, the backing sheet of the present invention is
Since there is a thin-walled part that does not hinder folding, it is possible to perform processing easily without any special care when folding, and as a result, productivity of exterior materials with high heat insulation performance is reduced. Can be produced without.

Also, since the thin portion of the backing sheet has a small repulsive force due to elasticity as well as the thickness, a predetermined connection form can be obtained without affecting the connection of the exterior material, and particularly the elastic fitting type exterior. The material has high workability and high heat insulation.

[Brief description of drawings]

FIG. 1 (a) is a cross-sectional view showing an embodiment of an exterior material of the present invention, (b) is a cross-sectional view of a backing sheet to be back-attached to the back surface of the exterior material, and (c) is the exterior material of (a) above . It is sectional drawing which shows the exterior structure using.

FIG. 2 is a front view showing a variation of an exterior material in which the backing sheet of the present invention is backed, before being bent.

FIG. 3 is a cross-sectional view showing an exterior material of another embodiment.

FIG. 4 is a cross-sectional view showing an example of an exterior structure using an exterior material of another embodiment.

FIG. 5 (a) is a cross-sectional view showing an exterior material of another embodiment,
(B) It is sectional drawing which shows an example of the exterior structure using this exterior material.

FIG. 6 is a cross-sectional view showing an example of an exterior structure using an exterior material of another embodiment.

FIG. 7 is a cross-sectional view showing an example of an exterior structure using an exterior material of another embodiment.

FIG. 8 (a) is a cross-sectional view showing an exterior material of another embodiment,
(B) It is sectional drawing which shows an example of the exterior structure using this exterior material.

FIG. 9 is a cross-sectional view showing an exterior material of another embodiment.

[Explanation of symbols]

1 Backing sheet 11 Thin wall 12 Thick part 2 Exterior base material 21 Rise 211 Fitting part 212 Placement part 213 Folding part 22 Face plate 3 Exterior materials 31 Outside goby 32 Inner goby 331 chevron 4 frames 40 frame lower member 5 Frame upper member 51 piece 511 Mating part 512 receiving part 513 groove 6 Cover material 61 Adhered part 62 side piece 63 Held part

Claims (3)

(57) [Claims] 1. A backing sheet backed to a metal-based exterior material before bending, which has at least heat insulation, elasticity, and flexibility, and is used for connecting the exterior material to a part in the width direction. Bending part and /
Alternatively, a backing sheet, characterized in that a thin portion having a uniform thickness along the overlapping portion is formed. 2. A bent portion for connection on both side edges and /
Or, in a metal-based exterior material having a backing sheet integrally attached to substantially the entire width of the back surface, the backing sheet having at least heat insulation, elasticity, and bendability. A metal-based exterior material characterized in that a thin portion having a uniform thickness formed in a part of the backing sheet in the width direction is provided along the bent portion and / or the overlapped portion. 3. A metal-based exterior material having a bent portion for connection and / or a superposed portion, and a backing sheet integrally attached to a part of the back surface in the width direction, wherein the backing sheet is , Having at least heat insulation, elasticity and bendability, and having a thin portion having a uniform thickness formed in a part of the width of the backing sheet along the bent portion and / or the overlapped portion. Metal-based exterior material to be.