JP2004132083A - Exterior panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior panel effective for an exterior wall of an outer heat insulation structure, having superior heat insulating performance, allowing easy stone installing finish of high grade, being applied to super-high-rise building without any problem, and being free from restriction on appearance and design. <P>SOLUTION: In this exterior panel 1 composing the exterior wall of the building, a stone material 3 as an exterior finishing material is attached to an outer face side of a PC plate 2 as a panel body by an anchor hardware 6, and a heat insulation material 4 is stacked between the PS plate and the stone material. As the anchor hardware, a bolt anchor driven into the exterior finishing material at its tip part and provided with a fixing member screwed on its basic end part, is applied. The water-proof/humidity-proof processing is performed on a clearance between a prepared hole for driving the tip part of the bolt anchor, and the bolt anchor by a sealing material. A dry gasket 7 is placed in a joint between the exterior finishing materials. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an exterior panel for forming an exterior wall of a building, and particularly to an exterior panel suitable for use when constructing an exterior wall of a so-called exterior insulation structure.
[0002]
[Prior art]
Conventionally, when heat insulation is applied to the outer wall of a building, a so-called inner heat-insulating structure, in which a heat insulating material is attached to the inside of the skeleton, was usually used. This may cause problems such as peeling of the heat insulating material, generation of mites and mold, and the like. For this reason, recently, an external heat insulating structure in which a heat insulating material is attached to the outside of the skeleton has been attracting attention, and is in widespread use.
[0003]
The outer wall of the conventional external heat insulation structure is mainly of the structure where the heat insulation material is re-applied or sprayed on the outside after the skeleton is constructed, but such a structure is mainly used for large-scale buildings and high-rise buildings. In this case, not only is the workability difficult, but it is necessary to prevent rainwater from seeping into the heat insulating material, because it is not possible to ensure sufficient quake resistance and wind resistance including the exterior material. The use of high-quality stone-finished exterior finishing materials and the design of joints are restricted. For this reason, as disclosed in Japanese Patent Publication No. 4-23055, for example, an outer heat-insulating exterior panel in which a heat-insulating material also serving as an exterior finishing material is previously implanted into the outer surface of a PC board or a PC formwork for an outer wall has been proposed.
[0004]
[Patent Document 1]
Japanese Patent Publication No. Hei 4-23055 [0005]
[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 because the thermal insulating material also serves as an exterior finishing material, and the surface thereof is coated with a ceramic coating. In addition, the design and appearance of the outer wall are not only restricted, but also such a concrete-based heat insulating material does not always provide sufficient heat insulating performance, and has not been widely used.
[0006]
In view of the above circumstances, an object of the present invention is to provide an effective exterior panel which can easily construct an outer wall of an outer insulation structure having excellent heat insulation performance and is not subject to restrictions on appearance and design.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is an exterior panel for forming an outer wall of a building, wherein an exterior finishing material is previously attached to an outer surface side of a PC board as a panel body, and the PC board and the exterior finishing material are attached. A heat insulating material is laminated between them, and a stone material is adopted as an exterior finishing material, and the stone material is fixed to the PC board by an anchor metal.
[0008]
According to a second aspect of the present invention, there is provided the exterior panel according to the first aspect of the present invention, wherein a bolt anchor having a distal end portion driven into the exterior finishing material and a fixing member screwed to the base end portion is adopted as the anchor hardware. It is characterized by having.
[0009]
A third aspect of the present invention is the exterior panel according to the second aspect of the present invention, wherein a tip of a bolt anchor is driven into a prepared hole provided in a stone material, and a gap between the prepared hole and the bolt anchor is formed by a sealing material. It is characterized by waterproof and moisture-proof treatment.
[0010]
According to a fourth aspect of the present invention, in the exterior panel according to the first, second or third aspect, a gasket is interposed at a joint between the exterior finishing materials.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 4 show an embodiment of an exterior panel of the present invention. In the exterior panel 1 of the present embodiment, a stone 3 as an exterior finishing material is previously integrally attached to an outer surface side of a PC plate 2 (precast concrete plate) as a panel body, and the PC plate 2 and the stone 3 This is a so-called sandwich panel having a structure in which a heat insulating material 4 is laminated in advance, and the outer wall of the outer heat insulating structure can be formed only by attaching the exterior panel 1 to the outer peripheral portion of the building.
[0012]
The PC board 2 in the exterior panel 1 itself forms the main body of the outer wall in the same manner as a conventional general PC board for an outer wall, and the reinforcing bars 5 are arranged in a grid pattern in several stages (two stages in the illustrated example). Has been streaked. In this example, the stone 3 as the exterior finishing material has a square shape of about 600 mm × 600 mm, and is securely and firmly integrated with the PC board 2 by the anchor hardware 6. Various materials can be used as the heat insulating material 4. For example, a material obtained by spraying urethane foam, a material obtained by applying urethane foam board, a material obtained by applying polystyrene foam board, and the like can be suitably used.
[0013]
As shown in FIG. 3A, the anchor hardware 6 has a split sleeve 6c mounted on a bolt body 6b having a tapered head 6a at the tip, and the split sleeve 6c is attached to the head 6a. A bolt anchor having a configuration in which the diameter is increased by being driven into the stone material 3 so as to bite the stone 3 is employed. Then, a double nut 6d is screwed into the base end of the bolt body 6b, and is embedded in the PC board 2 as a fixing member, whereby the stone 3 can be securely and firmly attached to the PC board 2. It has become something. As the fixing member, instead of the double nut 6d, for example, a fixing plate 6e having a female screw as shown in FIG. 4A is directly screwed to the bolt body 6b as shown in FIG. 4A, or as shown in FIG. The fixing plate 6f may be clamped from both sides by nuts 6g, or an insert 6h may be screwed onto the bolt body 6b as shown in FIG. In addition, as the anchor metal member 6, any other structure can be used instead of the bolt anchor as long as the stone member 3 can be securely attached to the PC board 2.
[0014]
As shown in FIG. 2, a gasket 7 is interposed between joints between the stones 3. The gasket 7 in the illustrated example has a head 7a which is in close contact with the back surface of the stone 3 and is fixed by the secondary sealing material 8 and a three-step tongue piece 7b which is in close contact with the small opening of the stone 3 in a pressed state. The gasket 7 alone can maintain excellent water stopping performance for 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), or the like can be suitably used.
[0015]
To manufacture the exterior panel 1, first, an anchor metal (bolt anchor) 6 is driven into the back surface of the stone 3 as shown in FIGS. 3B to 3E. That is, first, a pilot hole 9 was drilled on the back surface side of the stone 3 as shown in (b), and chips in the pilot hole 9 were removed using a dust suction machine or a dust pump as shown in (c). Thereafter, as shown in (d), the distal end of the anchor hardware 6 is inserted into the prepared hole 9, and the split sleeve 6c is driven by using the driving jig 10, so that the split sleeve 6c is moved to the head as shown in (e). The double nut 6d as a fixing member is screwed to the base end of the bolt body 6b by expanding the diameter of the bolt 6 into the prepared hole 9 by the portion 6a. By closing the gap between the bolt body 6b and the pilot hole 9 with the sealing material 11 and performing waterproofing / moisture-proofing treatment in a watertight and airtight manner, failure such as wet color or discoloration of the stone material 3 at the anchor portion where the stone thickness becomes thinner is prevented. It can be reliably prevented.
[0016]
The stones 3 to which the anchor hardware 6 is attached as described above are laid side by side inside a mold for molding the PC board 2, and a gasket 7 is attached between the stones 3 and fixed by the secondary sealing material 8. . In addition, as shown in FIG. 2, the back surface treatment material 12 may be applied to the back surface of the stone 3 in advance. Then, a heat insulating material 4 having a predetermined thickness is formed on the stone 3 by spraying or pasting a board. In this case, the base end of the anchor metal 6 is made to protrude from the heat insulating material 4. Thereafter, the reinforcing bar 5 is set in the formwork, the concrete is cast, the PC board 2 is formed, and after a predetermined curing period, the formwork is dismantled. 2 and the exterior panel 1 is completed. 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, and the thickness of the exterior finishing material is about 30 mm. The thickness of the stone 3 is generally about 30 mm, and thus the overall thickness is generally about 230 mm.
[0017]
The above-mentioned exterior panel 1 can be installed on the building only by attaching it to the building, so that the skeleton of the outer wall, the exterior finishing material, and the heat insulating material can be automatically constructed. The work and the exterior finishing work can be omitted, and the construction of the outer wall of the outer insulation structure can be performed extremely easily, which can greatly contribute to shortening the construction period and the number of man-hours.
[0018]
In particular, the above-mentioned exterior panel 1 can be efficiently and accurately manufactured in a PC factory, and can be mass-produced 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. Thus, it is possible to make the heat insulating material 4 sufficiently inexpensive, and it is possible to secure desired heat insulating performance by arbitrarily setting the material of the heat insulating material 4 and its thickness.
[0019]
Further, since the stone material 3 of various designs, shapes and dimensions conventionally used as the exterior finishing material can be employed as it is, as described above, the conventional external insulation exterior material which is used as the heat insulating material and the exterior finishing material is used. Unlike a panel, the design and appearance of the outer wall are not restricted, and the degree of freedom in design can be increased. A high-grade stone-finished finish can be applied to a high-rise building without any problem.
[0020]
In addition, by performing waterproofing and moisture proofing treatment with the sealing material 11 on the tip end of the anchor hardware 6 driven into the stone 3, failure such as wet color or discoloration of the stone 3 at the anchor where the stone thickness becomes thin is ensured. Can be prevented.
[0021]
Furthermore, the water stopping performance at the joint between the stones 3 can be sufficiently ensured by the gasket 7 and can be maintained for a long time. In addition, by using such a gasket 7, a conventional general wet sealing method in which a joint is filled with a sealing material is used. This is more advantageous in terms of cost than the case described above. In particular, when the wet sealing method is used, it is necessary to invert the PC board 2 and then perform primary sealing on the joints after molding the PC board 2. Is completely unnecessary.
[0022]
【The invention's effect】
In the exterior panel according to the first aspect of the present invention, a stone as an exterior finishing material is attached to the PC plate by 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. Since it has a structure, it has sufficient heat insulation performance and can be manufactured efficiently and accurately at a PC factory and at a sufficiently low cost. In addition to having excellent thermal insulation performance, the use of this material makes it possible to extremely easily construct the outer wall of the outer insulation structure with a high-grade stone-finished finish. It can be constructed, greatly contributes to shortening the construction period and man-hours, and can be applied to the construction of large-scale buildings and high-rise buildings without any trouble.
[0023]
The invention according to claim 2 employs a bolt anchor in which the distal end portion is driven into the exterior finishing material and the fixing member is screwed to the base end portion, so that the stone material can be easily and reliably attached to the PC board. Can be attached firmly.
[0024]
In the invention according to claim 3, since the gap between the bolt anchor and the pilot hole into which the tip of the bolt anchor as the anchor hardware is waterproofed and moisture-proofed by a sealing material, the stone part having a small stone thickness is obtained. Therefore, failures such as wet coloration or discoloration of the stone material can be reliably prevented.
[0025]
According to the fourth aspect of the present invention, since the gasket for securing the waterproofness is interposed at the joint between the exterior finishing materials, it is possible to reliably prevent rainwater from seeping into the heat insulating material, and to provide excellent waterproof performance. Can be maintained for a long period of time, and the exterior panel can be manufactured more easily than in the case of the conventional general wet sealing method, which is advantageous in terms of cost.
[Brief description of the drawings]
FIG. 1 is a sectional view of an exterior panel according to an embodiment of the present invention.
FIG. 2 is an enlarged view of the joint part.
FIG. 3 is a view showing an anchor hardware and a construction procedure thereof.
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 materials (exterior finishing materials)
4 Insulation material 5 Reinforcement 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 surface treatment material

Claims (4)

An exterior panel for forming an outer wall of a building, in which an exterior finishing material is previously attached to an outer surface side of a PC board as a panel body, and a heat insulating material is laminated between the PC board and the exterior finishing material. An exterior panel characterized in that a stone material is adopted as an exterior finishing material, and the stone material is fixed to a PC board by an anchor hardware. The exterior panel according to claim 1, wherein a bolt anchor having a distal end portion driven into an exterior finishing material and a fixing member screwed to a base end portion is adopted as the anchor hardware. 3. The exterior panel according to claim 2, wherein a tip end portion of the bolt anchor is driven into a prepared hole provided in the stone material, and a gap between the prepared hole and the bolt anchor is waterproofed and moisture-proofed by a sealing material. . The exterior panel according to claim 1, wherein a gasket is interposed between joints between the exterior finishing materials.

Images