JPH0344905Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an exterior panel.
In particular, it relates to an exterior panel using a composite plate made by bonding aluminum sheets to both sides of a synthetic resin sheet.

[Conventional technology]

Building exteriors are constantly exposed to wind, rain and direct sunlight, so strength and waterproofing are essential.
In practical terms, it is necessary to meet various requirements such as appearance requirements. In particular, the durability of buildings largely depends on the waterproofness of roofs and exterior walls, and waterproofing is considered very important in the construction industry.

When panels are used for the exterior of buildings, from the viewpoint of design, strength, waterproofness, workability, etc., a box-shaped panel with an opening at the back and a front section and four peripheral sections is often used, and the material used Examples of materials used include enameled steel plates, crystallized glass, and composite plates with metal sheets bonded to both sides of synthetic resin sheets.

[Problem that the invention attempts to solve]

For exterior panels of box-shaped bodies, waterproofing of the butt parts between the four peripheral parts is a problem, but welding and other workmanship is relatively easy for metal panels such as steel plates and aluminum plates, and waterproofing is almost impossible. It becomes complete.

Exterior panels using composite plates made by bonding synthetic resin sheets and metal sheets exhibit excellent properties such as being lightweight and high strength at the same time, having good flatness, and being inexpensive. However, because the metal sheets are thin, it is often difficult to weld the butt parts, and the butt parts are usually covered with a sealant, which is not completely waterproof, and it takes time to install, so it is not suitable for use as a cover. The existing sealants have caused problems such as spoiling the appearance, and there has been a desire for an exterior panel that eliminates these problems.

[Means for solving problems]

The inventors of the present invention have conducted various studies in order to obtain an exterior panel using a composite board that solves the above-mentioned waterproof problem. The inventors came up with the present invention based on the knowledge that by constructing the above, an exterior panel that is not only waterproof but also excellent in lightness, workability, appearance, and other properties can be obtained.

That is, the gist of the present invention is to provide a notch groove with a U-shaped or V-shaped cross section in a composite plate made by bonding aluminum sheets to both sides of a synthetic resin sheet, and to bend the notch groove with the notch groove inside to form a front part. This is an exterior panel in the form of a box with four peripheral parts and an opening at the back, wherein the ears at the protruding corners of the box-like part cover at least a part of the abutting parts of the four peripheral parts. The present invention resides in an exterior panel characterized in that piece materials for attaching to a structure are provided on four peripheries.

Hereinafter, the present invention will be explained based on the drawings.

Fig. 1 is a perspective view showing an example of the exterior panel of the present invention, Fig. 2 is a developed view of a part of the composite board that constitutes the panel shown in Fig. 1, and Fig. 3 is a perspective view showing an example of the exterior panel of the present invention. FIG. 4 is a cross-sectional view showing the mounting method of the exterior panel of the present invention, and FIG. 5 is a partial cross-sectional view taken along the line A-A in FIG. 2. It is.

This invention uses a composite plate made by bonding a synthetic resin sheet and aluminum. The synthetic resin sheet used for the composite board is not particularly limited as long as it is a common one, but from the viewpoint of moldability, polyolefin resin sheets, particularly polyethylene resin sheets, are preferred. The aluminum sheet usually has a thickness of 0.1 to 0.5, and the surface that becomes the front side when forming a composite board is generally subjected to a surface treatment such as painting. In particular, the treatment of the outside surface of an exterior panel is important as it has a large effect on the durability of the panel itself.For example, fluororesin coating provides weather resistance and is similar to high-temperature baked enameled steel or glazed porcelain tiles. However, the surface treatment is not limited to this, and any known surface treatment can be applied.

The composite plate used in the present invention is constructed by joining aluminum sheets to both sides of a synthetic resin sheet with or without adhesive, and its thickness is usually 2 to 6 mm in consideration of strength, weight, etc.

An exterior panel 3 is obtained by bending this composite plate to form a front part 1 and four peripheral parts 2 to form a box-like body with an open back.

A cutout groove 4 with a U-shaped or V-shaped cross section is provided on the inside of the bending part that is the boundary between the front surface 1 and the four circumferential parts 2 of the composite plate, which facilitates the bending process and reduces temperature changes in the composite plate. It can absorb the expansion and contraction due to The notch groove 4 is formed in the outer aluminum sheet by 0.1 to 0.3 of the synthetic resin sheet.
A depth of 1 mm is preferable (see FIG. 5. In the same figure, 13 indicates a synthetic resin sheet and 14 indicates an aluminum sheet).

As shown in FIG. 1, the exterior panel 3 of the present invention has a lug 7 at the protruding corner part 6 where the front part 1 and the abutting part 5 of the four peripheral parts 2 intersect, and the abutting part is covered by the lug 7. This is the biggest feature.

As shown in FIG. 2, the ears 7 are the portions left so as to be connected to the protruding corners 6 at the four corners that are cut off to form the box-like body. In the ear 7, it is preferable to remove the inner aluminum sheet and synthetic resin sheet so as to leave a synthetic resin with a thickness of 0.1 to 0.3 mm on the outer aluminum sheet of the exterior panel 3. When the abutment part 6 is covered with the lugs 7 made of material, the waterproofness of the abutment part 5 is improved, and when the panel 3 is viewed from the front part 1, the lugs 7 and the four peripheral parts 2 are integrated, giving a good appearance. Furthermore, by leaving a thin synthetic resin layer on the selvedge 7, there is no cracking unlike with an aluminum veneer, and the selvage 7 can be easily covered. Note that the shape of the ears 7 should be at least connected to the protruding corner portion 6, and is not limited to a shape that is continuous with the four circumferential portions 2 as shown in FIG. The size of the ear 7 is appropriately determined depending on the location where the panel 3 is used, and the abutment part 5 may be completely covered, but the lower part is usually covered with a sealant, so the abutment part 5 should be 5 mm or more. It is sufficient if it can be covered.

Pieces 8 for attaching the exterior panel 3 to the structure of the building are usually provided on all sides of the four peripheries 2 using blind rivets, adhesives, or other means, as shown in FIG. The piece material 8 may be a member with an L-shaped cross section, and one side may be joined to the inside and outside of the four circumferential parts 2, and the other side may be used for attachment to the structure.
If the cross section is approximately Z-shaped as shown in Figures and Figure 4, and it is joined to both the front part 1 and the four peripheral parts 2 from the inside of the box-like body, the angle between the front part 1 and the four peripheral parts 2 can be fixed, and after construction. This is preferable because the thickness t of the panels 3 can be easily unified and the strength of the entire panel 3 can be improved.

Furthermore, in order to prevent the butt portions 5 from opening and to improve the strength of the entire panel, it is also preferable to join the corner metal fittings 9 to the panel, which join the four adjacent peripheral portions 2 together. Note that since the piece material 8 and the corner metal fittings 9 are in contact with the aluminum sheet on the front surface, they are preferably made of aluminum in consideration of electrolytic corrosion, etc., and it is also possible to use a piece that is integrated as a whole. Although not shown in the drawings, it is preferable to caulk the cutout grooves 4 and the abutting portions 5 from the inside with a sealant from the viewpoint of waterproofing.

The obtained exterior panels can be used for exterior walls, roofs, etc.
It can be used for eaves, interior decoration, etc., but the construction method is usually as shown in Fig. 4, where the piece material 8 or corner fittings 9 are butted together or overlapped and screwed to the structure 10, and then On top of the backup material 11, a silicone or polysulfide sealant 12 is filled so that the lower end of the ear 7 is sufficiently covered.

[Effect of idea]

Due to the above structure, the exterior panel of the present invention has almost complete waterproofness and is very useful. In particular, since a composite plate made of aluminum and synthetic resin is used, the tabs 7 can be made of only aluminum and a thin synthetic resin, and can be coated easily.

In addition, conventional panels made of steel plate weigh 30Kg/m ²
The weight of the glass material was about 50 kg/ ^m2 , but the weight of this invention is extremely light at 4 to 8 kg/ ^m2 . (i) The demand for lighter building materials as buildings become taller (ii) When improving the exterior of an existing building, since the panels are lightweight, there will be no problem with the structural strength of the building even if the exterior panel of the present invention is installed on top of the conventional exterior. Does not occur.

There are advantages such as In addition to being lightweight, since the panel and piece material are integrated, installation work to the structure can be done quickly, and dimensional changes on site can be accommodated. Bending and cutting of the composite board can be done using steel plates, aluminum plates, etc. Since it is easier, the entire construction can be completed in a shorter time.

Furthermore, even after construction, (i) metal plates tend to have "waves" on the panel surface due to contraction and expansion due to temperature changes, whereas the panel of the present invention, which uses composite plates, has good flatness and , the contraction and expansion occur in the entire panel, and the notch grooves absorb the contraction and expansion, giving it a beautiful appearance. (iii) The ears improve the appearance of the waterproof sealant, which was raised above the panel surface so that it would be exposed above the panel surface. The exterior panel of the present invention can provide various advantages such as (iv) the sound insulation effect of the composite board prevents noise from outside.

[Brief explanation of drawings]

Figure 1 is a perspective view showing an example of the exterior panel of the present invention, Figure 2 is a partially exploded view of the composite board that makes up the panel, and Figure 3 is a view of the panel shown in Figure 1 from the back. FIG. 4 is a partial perspective view, FIG. 4 is a sectional view showing the mounting method of the exterior panel of the present invention, and FIG. 5 is A-A in FIG. 2.
It is a partial sectional view taken along the A line. In the figure, 1 is the front part, 2 is the four circumferential parts, 3 is the exterior panel, 4 is the cutout groove, 5 is the butt part, 6 is the protruding corner part, 7 is the ear, 8 is the piece material, and 9 is the corner metal fitting. .

Claims (1)

[Claims for Utility Model Registration] (1) A composite plate made by bonding aluminum sheets to both sides of a synthetic resin sheet has a cutout groove with a U-shaped or V-shaped cross section, and is bent with the cutout groove on the inside. An exterior panel in the form of a box consisting of a front part and four peripheral parts and opening at the back, wherein at least a part of the abutting parts of the four peripheral parts is covered by ears at the protruding corners of the box-shaped body, An exterior panel characterized in that piece materials for attaching a box-like body to a structure are provided on the four peripheries. (2) The exterior panel according to claim 1, wherein the piece material has a substantially Z-shaped cross section and is joined to both the front part and the four circumferential parts from the inside of the box-shaped body.