JP3523832B2 - Manufacturing method of insulation panel for building - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a heat insulating panel for construction which is useful as a roof material, an outer wall material and other exterior materials.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. H02-26498 discloses a conventional heat insulating panel for construction.
There are the ones proposed in JP-A-204560 and Jpn. Pat. Appln. KOKAI Publication No. 3-4650, which have excellent heat insulation and strength, but have the following drawbacks. In these panels, rainwater that entered between the heat insulating layer and the front and back plates made of metal corroded both front and back plates and opened holes, leading to a large water leakage accident, or before such corrosion, There is a problem that the rainwater that has infiltrated will drop directly into the room and cause a water leakage accident. In such a water leakage accident, since the heat insulating layer is made of foamed resin and has extremely low self-water absorption and excellent heat insulating property, the infiltrated water stays in the fragile part of the adhesive layer between the heat insulating layer and the metal plate, It is more important because it accelerates the corrosion of the metal plate. Further, the length of the panel is such that it cannot be molded on-site and can be transported because the heat insulating layer is formed by injecting and foaming a resin material for the reason of molding 11
As a result, the upper and lower panels are connected by arranging a foamed resin or a seal at the connecting portion. However, in the case of a connection structure in which foamed resin or a seal is arranged in such a connection part, the connection part is a hidden part that cannot be seen by the operator during or after the work, and therefore, the confirmation of the sealing state is required. However, there is a problem that the panel has to be removed once when the work is defective or the seal deteriorates with age. In this way, since the panel itself does not have the self-draining capability, water leakage accidents due to corrosion cannot be avoided, and the infiltrated rainwater cannot be connected to the panel without arranging foamed resin or seals in the upper and lower panel connection parts. It is inevitable that water leakage will occur due to dripping inside the room from the inside, and the work efficiency of connecting the upper and lower panels is poor and the quality of the seal is unknown.

[0003]

The problem to be solved by the present invention is to form a space surface which penetrates in the vertical direction between the inside of the concave portion of the back plate and the heat insulating material layer, and to provide a metal surface plate of an appropriate shape. It is an object of the present invention to provide a method for manufacturing a heat insulating panel for a building, which has no gap between the heat insulating material layer and a soundproof panel.

[0004]

In order to achieve the above-mentioned object, the present invention is to adhere a back sheet to a metal top plate of an appropriate form, and to form a foamable resin material between the top plate and the back sheet. After injecting and foaming to form the required insulation layer,
The back plate is attached to this heat insulating material layer via the back sheet so that a space penetrating in the vertical direction is left between the recess of the back plate and the back sheet, and the front plate and the heat insulating material layer are attached. And the back plate are integrated into three parts. Further, in the present invention, a back sheet is preliminarily attached to each of the recesses in the metal back plate in a form in which a plurality of recesses and protrusions are formed in parallel with each other in the vertical direction, and the back and forth are placed between the back sheet and the recesses. Form a space portion penetrating in the direction, after that, by attaching a metal surface plate of an appropriate form to this back plate via the back sheet,
It is characterized in that a foamable resin material is injected between the back sheet and the face plate to foam to form a required heat insulating material layer, and the back plate, the heat insulating material layer and the face plate are integrated into three parts.

The front plate and the back plate in the present invention are formed by known appropriate forming means such as press working or roll working. The left and right ends of the surface plate include well-known techniques for connecting building exterior materials such as a fitting method and a goby tightening method in addition to a covering method by simple polymerization as a structure for connecting them. Not limited. The front plate and the back plate are
For example, any plate material that is used for the exterior of a normal building, such as plated or colored iron, aluminum, or stainless steel, may be used. Examples of the foamable resin material forming the heat insulating material layer include hard urethane, isocyanurate, and phenol foam.

FIG. 1 illustrates one embodiment of claim 1 in the method for manufacturing a heat insulating panel for construction according to the present invention.
The front surface plate 1 and the rear surface plate 2 are separately formed in advance.
The surface plate 1 includes a convex portion 4, a concave portion 5, L-shaped side portions 9 at left and right ends,
Back plate 2 having a convex portion 7 and a concave portion 6 respectively. After that, the back sheet 11 is attached between the horizontal portions 9a and 10a of the left and right side portions 9 and 10 of the front plate 1, and the front plate 1 and the back sheet 1 are attached.
The foamable resin material is injected into the space between the two and foamed to form the heat insulating material layer 3. Next, the back plate 2 is joined to the heat insulating material layer 3 via the back sheet 11 so that a space portion 8 penetrating in the vertical direction is left between the recess 6 of the back plate 2 and the back sheet 11. The three parts are integrated by attaching (heat fusion, pressure bonding, etc.).

FIG. 2 illustrates one embodiment of claim 2 in the method for manufacturing a heat insulating panel for construction according to the present invention.
The front plate 1 and the rear plate 2 are separately molded and placed. The surface plate 1 includes a convex portion 4, a concave portion 5, and left and right L-shaped side portions 9 and 10.
The back plate 2 is molded to have a convex portion 7 and a concave portion 6, respectively. After that, the backsheet 11 is adhered over the respective convex portions 7 of the backboard 2 to form a space portion 8 penetrating in the up-down direction between the recess 6 and the backsheet 11. After that, the back sheet 1 is attached to the back plate 2.
The surface plate 1 is bonded (thermal fusion bonding, pressure bonding, etc.) via 1.
Next, the foamable resin material is injected into the space between the top plate 1 and the back sheet 11 to cause foaming to form the heat insulating material layer 3,
The three are united.

[0008]

According to the first aspect of the present invention, it is possible to manufacture a panel in which a space which penetrates vertically is formed between the inside of the recess of the back plate and the heat insulating material layer. Then, by injecting a foamable resin material between the metal surface plate and the back sheet of an appropriate form and foaming to form a required heat insulating material layer, according to the form of the metal surface plate, It is possible to form a heat insulating layer having no gap between the face plate and the face plate, and it is possible to manufacture a panel having high soundproofing. And since the panel to be manufactured has a space part vertically penetrating (communication) between the heat insulating material layer and the back plate, the invading rainwater is
It will not stay in the fragile part of the adhesive layer of the heat insulating material layer and the metal plate, and will prevent the corrosion of both the front and back metal plates,
It does not cause a major water leakage accident due to corrosion. By opening the upper and lower ends of the upper and lower panels on the construction surface to the atmosphere or connecting them to an air conditioner, it is possible to enhance the heat insulating effect and remove moisture in the space. (B) According to claim 2, the same effect as in the preceding paragraph can be obtained.

[Brief description of drawings]

1 (A) to 1 (C) are schematic views illustrating one embodiment of a method for manufacturing a heat insulating panel for a building according to the present invention in the order of steps.

2A to 2C are schematic views illustrating one embodiment of the method of manufacturing a heat insulating panel for a building according to the present invention in the order of steps.

[Explanation of symbols]

1 surface plate 2 Back plate 3 Thermal insulation layer 4, 7 convex 5, 6 recess 8 space 9,10 L-shaped side 9a, 10a Horizontal part 11 Back sheet

─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. ⁷ Identification Code FI E04B 1/80 E04B 1/80 D E04C 2/26 E04C 2/26 V E04D 3/35 E04D 3/35 F E04F 13/12 E04F 13/12 A 13/18 13/18 A (56) Reference JP-A-2-204560 (JP, A) JP-A-62-63751 (JP, A) JP-A-57-89044 (JP, A) Actual Kai 52-147774 (JP, U) Actual public 48-40572 (JP, Y1) Actual public 50-29303 (JP, Y1)

Claims (2)

(57) [Claims] 1. After a back sheet is adhered to a metal surface plate of an appropriate form and a foamable resin material is injected between the surface plate and the back sheet to foam to form a required heat insulating material layer. The heat insulating layer is attached to the back plate through the back sheet such that a space penetrating in the up-down direction remains between the recess of the back plate and the back sheet. A method for manufacturing a heat insulating panel for construction, characterized in that a layer and a back plate are integrated into one. 2. A back sheet is preliminarily attached to each of the recesses in a metal back plate in a form in which a plurality of recesses and protrusions are formed in parallel with each other in the vertical direction, and the back sheet and the inside of the recess are vertically joined. Form a space that penetrates in the direction, and after that, attach a metal surface plate of an appropriate shape to this back plate via the back sheet, and inject a foamable resin material between the back sheet and the surface plate. And foaming to form a required heat insulating material layer, and integrating the back plate, the heat insulating material layer, and the front plate into a three-part body.