JP4017494B2 - Exterior panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exterior panel for constructing an outer wall of a building, and particularly to an exterior panel suitable for use when constructing an outer wall having a so-called outer heat insulation structure.
[0002]
[Prior art]
When heat insulation is performed on the outer wall of a building, it was usual to use a so-called internal heat insulation structure in which a heat insulating material is generally attached to the inside of the housing. However, in the internal heat insulation structure, internal condensation has occurred between the heat insulating material and the housing. May cause problems such as peeling of the heat insulating material and generation of mites and molds. For this reason, recently, an outer heat insulating structure in which a heat insulating material is attached to the outside of the housing has been attracting attention, and is in the mood for widespread use.
[0003]
The outer wall of a conventional outer heat insulation structure is mainly constructed by applying or spraying heat insulation on the outside after the housing is constructed, but in such a structure, it is mainly used for large-scale buildings and high-rise buildings. In this case, not only is the workability difficult, but it is also necessary to reliably prevent rainwater from seeping into the heat insulating material because it is not possible to secure sufficient quality for earthquake resistance and wind resistance including exterior materials. Adoption of high-grade exterior finishing materials with stones and designs such as joints are limited. Therefore, as shown in, for example, Japanese Patent Publication No. 4-23055, an outer heat insulating exterior panel in which a heat insulating material that also serves as an exterior finishing material is preliminarily placed on the outer surface side of a PC plate for an outer wall or a PC mold has been proposed.
[0004]
[Patent Document 1]
Japanese Examined Patent Publication No. 4-23055
[Problems to be solved by the invention]
However, the outer heat insulating exterior panel shown in the above publication is limited to cellular ceramics and cellular concrete as the heat insulating material also serves as the exterior finishing material, and a ceramic coating is applied to the surface thereof. Therefore, not only is the design and appearance of the outer wall limited, but such a concrete-based heat insulating material does not necessarily provide sufficient heat insulating performance and has not been widely spread.
[0006]
In view of the above circumstances, an object of the present invention is to provide an effective exterior panel that can easily construct an outer wall of an outer heat insulating structure excellent in heat insulating performance and is not subject to external or design restrictions.
[0007]
[Means for Solving the Problems]
The invention of claim 1 is an exterior panel for constituting an outer wall of a building, and an exterior finish material is preliminarily attached to the outer surface side of the PC board as the panel body, and the PC board and the exterior finish material Heat insulating material is laminated between them, stone material is adopted as the exterior finish material, and the stone material is fixed to the PC board by anchor metal , and the tip part is driven into the exterior finish material as anchor metal, and the base end part A bolt anchor to which the fixing member is screwed is adopted, and the tip of the bolt anchor is driven into a pilot hole provided in the stone, and the gap between the pilot hole and the bolt anchor is waterproofed and moisture-proofed by a sealing material It is characterized by being.
[0010]
According to a second aspect of the present invention, in the exterior panel of the first aspect of the present invention, a gasket is interposed between the joints between the exterior finishing materials.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show an embodiment of the exterior panel of the present invention. The exterior panel 1 of the present embodiment has a stone material 3 as an exterior finish material integrally attached in advance to the outer surface side of a PC board 2 (precast concrete plate) as a panel body, and the PC board 2 and the stone material 3. A so-called sandwich panel having a structure in which the heat insulating material 4 is laminated in advance between them, and the outer wall of the outer heat insulating structure can be formed only by attaching the exterior panel 1 to the outer periphery of the building.
[0012]
The PC board 2 in the exterior panel 1 itself constitutes the main body of the outer wall in the same manner as a conventional PC board for an outer wall, and the reinforcing bars 5 are arranged in several grids (two in the illustrated example). It is streaked. In this example, the stone 3 as the exterior finish material is a square having a size of about 600 mm × 600 mm, and is firmly and firmly integrated with the PC plate 2 by the anchor hardware 6. Various materials can be used as the heat insulating material 4. For example, a material by spraying urethane foam, a material by urethane foam board, a material by polystyrene foam board, or the like can be suitably employed.
[0013]
As shown in FIG. 3 (a), the anchor metal 6 has a split sleeve 6c attached to a bolt body 6b having a tapered head 6a at the tip, and the split sleeve 6c is attached to the head 6a. The bolt anchor of the structure which expands it by driving and it bites into the stone material 3 is employ | adopted. Then, a double nut 6d is screwed to the base end portion of the bolt body 6b, and the stone 3 can be securely and firmly attached to the PC plate 2 by embedding it in the PC plate 2 as a fixing member. It has become a thing. As the fixing member, instead of the double nut 6d, for example, as shown in FIG. 4 (a), a fixing plate 6e formed with a female screw is directly screwed onto the bolt body 6b, or as shown in FIG. 4 (b). In addition, it is possible to adopt an appropriate one such as holding the fixing plate 6f with the nut 6g from both sides, or screwing the insert metal 6h to the bolt body 6b as shown in FIG. In addition, as the anchor hardware 6, other structures can be adopted instead of the bolt anchors as long as the stone 3 can be securely attached to the PC plate 2.
[0014]
Further, as shown in FIG. 2, a gasket 7 is interposed at the joint between the stone materials 3. The gasket 7 in the illustrated example includes a head portion 7a that is in close contact with the back surface of the stone material 3 and is fixed by a secondary sealing material 8, and a three-stage tongue piece 7b that is in close contact with the small surface of the stone material 3 in a pressed state. Therefore, it is possible to maintain an excellent water-stopping performance only for this gasket 7 over a long period of time. As a material of the gasket 7, for example, chloroprene (CR), chlorosulfonated polyethylene (CSM), ethylene propylene diene monomer (EPDM), silicone (SR), etc. can be suitably employed.
[0015]
In order to manufacture the exterior panel 1, first, an anchor metal (bolt anchor) 6 is driven into the back side of the stone 3 as shown in FIGS. 3 (b) to 3 (e). That is, first, as shown in (b), the lower hole 9 was drilled on the back side of the stone material 3 with a drill, and the chips in the lower hole 9 were removed using a dust absorber and a dust pump as shown in (c). Thereafter, the tip of the anchor metal 6 is inserted into the pilot hole 9 as shown in (d), and the split sleeve 6c is driven using the driving jig 10, so that the split sleeve 6c is inserted into the head as shown in (e). The diameter is expanded by the portion 6a and bite into the pilot hole 9, and a double nut 6d as a fixing member is screwed to the base end portion of the bolt body 6b. The gap between the bolt body 6b and the pilot hole 9 is closed with a sealing material 11, and water-tight and air-tight water-proof / moisture-proofing treatment is performed, so that the stone 3 has a wet or discolored failure at the anchor portion where the stone thickness is reduced. It can be surely prevented.
[0016]
The stone material 3 to which the anchor hardware 6 is attached as described above is laid and placed inside the mold for molding the PC plate 2, and a gasket 7 is attached between the stone materials 3 and fixed by the secondary sealing material 8. . In addition, as shown in FIG. 2, it is good to apply the back surface treatment material 12 to the back surface of the stone material 3 in advance. Then, the heat insulating material 4 having a predetermined thickness is formed on the stone material 3 by spraying or pasting the board, and the base end portion of the anchor metal 6 is protruded from the heat insulating material 4 at that time. After that, if the reinforcing bar 5 is set in the mold, concrete is cast and the PC board 2 is molded, and the mold is dismantled after a predetermined curing period, the base end of the anchor hardware 6 will naturally become the PC board. 2 is fixed to complete the exterior panel 1. The shape of the exterior panel 1 and the dimensions of each part are arbitrary and may be appropriately designed. For example, the thickness of the PC board 2 is about 170 mm, the thickness of the heat insulating material 4 is about 30 mm, The thickness of the stone 3 is generally about 30 mm, and therefore the overall thickness is generally about 230 mm.
[0017]
Since the construction of the outer wall frame, the exterior finishing material, and the heat insulating material is naturally performed only by attaching the exterior panel 1 to the building, the installation of the heat insulating material that has been performed again after the outer wall has been constructed as in the past The work and exterior finishing work can be omitted, and the construction of the outer wall of the outer heat insulating structure can be carried out very simply, which can greatly contribute to shortening the work period and reducing the number of man-hours.
[0018]
In particular, the above-described exterior panel 1 can be manufactured efficiently and accurately in a PC factory, and is mass-produced according to a predetermined standard using a general-purpose heat insulating material 4, a general-purpose stone material 3, and a general-purpose anchor hardware 6. It can be made sufficiently inexpensive, and desired heat insulation performance can be ensured by arbitrarily setting the material of the heat insulating material 4 and its thickness.
[0019]
Moreover, since the stone material 3 of various designs, shapes, and dimensions that have been conventionally used as exterior finishing materials can be used as they are, the conventional exterior thermal insulation exterior that combines the heat insulating material and the exterior finishing material as described above. The design and appearance of the outer wall are not restricted as in the case of the panel, and the degree of freedom in design can be increased, and a high-grade stone pasting finish can be applied to high-rise buildings without any problems.
[0020]
Moreover, since the bolt anchor of the structure which drives a front-end | tip part into the stone material 3 as the anchor metal object 6 is employ | adopted and the fixing member was screwed to the base end part of the bolt anchor, the stone material 3 is easily attached with respect to the PC board 2. And it can be securely attached firmly.
In addition, by applying a waterproof / moisture-proofing treatment to the tip of the anchor metal 6 driven into the stone 3 with the sealing material 11, it is possible to reliably prevent a failure such as a wet color or discoloration of the stone 3 in the anchor portion where the stone thickness is reduced. Can be prevented.
[0021]
Furthermore, the water-stopping performance at the joint between the stone materials 3 can be sufficiently secured by the gasket 7 and can be maintained over a long period of time, and the conventional general wet sealing method in which the joint portion is filled with a sealing material by adopting such a gasket 7. It is advantageous in terms of cost as compared with the case of the above. In particular, in the case of the wet sealing method, it is necessary to perform the primary sealing on the joint portion by reversing the PC plate 2 after it is molded. Is absolutely unnecessary.
[0022]
【The invention's effect】
In the exterior panel of the invention of claim 1, a stone material as an exterior finish material is attached to the PC plate with an anchor metal on the outer surface side of the PC plate as the panel body, and a heat insulating material is laminated between the PC plate and the stone material. Because of its structure, it can be manufactured efficiently, accurately and sufficiently inexpensively in a PC factory, as well as having sufficient heat insulation performance, and the exterior wall design and appearance are not restricted, and exterior finish materials It is possible to ensure sufficient quality for earthquake resistance and wind resistance, including this, and by adopting this, not only has excellent heat insulation performance, but also the outer wall of the outer insulation structure with a high-grade stone pasting finish is very simple It can be applied and can greatly contribute to shortening the work period and man-hours, and can be applied to large-scale buildings and high-rise buildings without any problems.
[0023]
In addition, as the anchor hardware, a bolt anchor in which the tip portion is driven into the exterior finish material and the fixing member is screwed to the base end portion is adopted, so that the stone material can be easily and securely attached to the PC board. it can.
[0024]
Moreover, since the gap between the bolt hole where the tip of the bolt anchor as an anchor hardware is driven and the bolt anchor is waterproofed and moisture-proof treated by the sealing material, the wet color of the stone material at the anchor part where the stone thickness becomes thin And failure such as discoloration can be reliably prevented.
[0025]
Since the invention of claim 2 is provided with a gasket for securing water-stopping at the joints between the exterior finishing materials, it is possible to reliably prevent rainwater from getting into the heat insulating material and to have excellent water-stopping performance. Can be maintained over a long period of time, and the exterior panel can be manufactured more easily than in the case of a conventional general wet sealing method, which is advantageous in terms of cost.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an exterior panel according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a joint portion.
FIG. 3 is a view showing an anchor hardware and its construction procedure.
FIG. 4 is a view showing another example of the anchor hardware.
[Explanation of symbols]
1 Exterior panel 2 PC board (panel body)
3 Stone (exterior finishing material)
4 Insulating material 5 Reinforcing bar 6 Anchor hardware (bolt anchor)
6a Head 6b Bolt body 6c Split sleeve 6d Double nut (fixing member)
6e Fixing plate (fixing member)
6f Fixing plate (fixing member)
6g Nut 6h Insert hardware (fixing member)
7 Gasket 7a Head 7b Tongue piece 8 Secondary sealing material 9 Pilot hole 10 Driving jig 11 Sealing material 12 Back treatment material

Claims (2)

An exterior panel for constituting the outer wall of a building, and an exterior finish material is previously attached to the outer surface side of the PC board as the panel body, and a heat insulating material is laminated between the PC board and the exterior finish material As the exterior finish material, stone is adopted, and the stone is fixed to the PC board by anchor hardware ,
As the anchor hardware, a bolt anchor in which the tip portion is driven into the exterior finish material and the fixing member is screwed to the base end portion is adopted ,
An exterior panel characterized in that a tip end portion of the bolt anchor is driven into a pilot hole provided in a stone material, and a gap between the pilot hole and the bolt anchor is waterproof / moisture-proofed by a sealing material. The exterior panel according to claim 1 , wherein a gasket is interposed between joints of the exterior finish material.

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