JPH0441855A - Facing panel - Google Patents

Abstract

PURPOSE:To prevent the water leakage into a building by providing a waterproofing seal material on the mounting support piece of a support plate for mounting a facing panel formed into box to a body, and subjecting the corner part of the panel to a water proofing measure. CONSTITUTION:The mounting support piece 22c of a support plate 22 for mounting a facing panel 20 formed into box to a body is provided with a waterproofing seal 26. The corner mounting part is subjected to waterproofing measure. In case of deterioration of a joint material 30 and a failure of construction, penetration of rainwater is prevented. Thus, the leakage into a building can be perfectly prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an exterior panel, and more particularly to a waterproof structure for a joint between exterior panels of a jaw in which a plurality of exterior panels are attached to a base member.

(Prior Art) In recent years, the exterior walls of buildings are increasingly formed by installing exterior panels of this type. Exterior panels used for such purposes have been constructed as disclosed in, for example, Japanese Utility Model Application Publication No. 103934 of 1988 (Utility Application No. 196036 of 1988).

That is, the conventional exterior panel 1 as disclosed in the above-mentioned publication has a periphery of a composite plate formed by bonding thin metal plates 3 to both sides of a core material 2, as shown in FIGS. 4 and 5. is bent at a V-shaped notch 4 extending from one metal plate side to the internal core material, forming a front panel section 5a and a side panel section 5b around the back surface, resulting in a box shape with an open back. The box-shaped panel member 5 includes a panel member 5, and a support plate 6 is attached to the box-shaped panel member 5 for attaching it to the outer wall of a building.

This support plate 6 is a side panel portion 5b of the box-shaped panel member 5.
The side panel portion 5 is tightly attached to the inner surface with rivets or the like.
The support piece 6a is fixed to the box-shaped panel member 5 and extends outward from the box-shaped panel member 5 beyond the edge of the side panel portion 5b.

Further, a corner member 8 is fixed to each corner portion 7 of the box-shaped panel member 5, and this corner member 8 also extends beyond the edge of the side panel portion 5b like the support piece 6a described above. It is provided with a supporting piece 8a projecting outward.

As shown in FIG. 6, such exterior panels 1 are arranged vertically and horizontally so that the ends of the support pieces 6a butt against the ends of the support pieces 6a of the adjacent exterior panels 1, and each support piece 6a is attached to a building. It can be fixed to the wall surface or base steel frame with screws 9. Then, the side panel portion 5b of the adjacent exterior panel 1
The space between them becomes a joint, and a fireproof joint material 10, a waterproof filler 11, etc. are provided in this joint.

(Problem to be Solved by the Invention) By the way, the waterproof filler 11 is silicon-based or metamorphosed silicon-based, since it is necessary to cope with the thermal expansion of the exterior panel 1 and movement of joints due to earthquakes, etc.

Since an organic material such as polysulfide is used, the durability (the life span during which initial performance can be maintained) is short, about 10 years, and after that, the waterproof filler 11 hardens due to temperature changes and ultraviolet rays. Unable to follow movement of joints, etc., causing cranking.

When cracks (cracks, fissures) begin to occur in the waterproof filler 11, water easily enters the building due to the difference in pressure between the inside and outside of the building, capillary action, etc., leading to a serious water leakage accident. - Once water leaks occur, it is difficult to determine which part of the crank is the cause, so all the waterproofing filling material 11 on the building's outer wall must be removed and a new waterproofing filling material must be inserted. Such waterproofing renewal work is generally difficult to carry out and is also extremely expensive.

The purpose of the present invention was to solve such conventional problems, and even if a crank occurs due to deterioration or poor construction of the waterproof filling material provided at the joint, water leakage into the interior of the building is prevented. The objective is to provide an exterior panel that prevents

(Means for Solving the Problems) The exterior panel of the present invention includes a box-shaped panel member that is open from the back and has a front panel portion and a side panel portion formed around the back surface of the front panel portion, and The mounting projecting outward from the edge of the panel section includes a supporting piece, a waterproof sealing material provided on the back of the tip of the supporting piece, and a waterproof sealing material provided at the corner of the box-shaped panel member. The corner member has a flexible flange portion protruding outward from the edge of the side panel portion, and the thickness of the flange portion gradually decreases toward the tip portion, similar to the support piece. The corner member is configured to include a corner member.

(Function) According to the exterior panel of the present invention, when a large number of exterior panels are arranged vertically and horizontally and fixed to the wall surface of a building or a base steel frame, the support pieces of adjacent exterior panels can be overlapped with each other and both support pieces can be simultaneously attached using screws. It is fixed to the wall surface of the building or the base steel frame.As a result, the waterproof sealing material provided on the back side of the tip of the upper support piece is sandwiched between the lower support pieces, and the overlapping seam is sealed.

The flange portions of each corner member also overlap with each other. However, since this flange part is flexible and its thickness gradually decreases toward the tip, the degree of adhesion is high at the overlapped part, especially at the intersection of the joint where four flanges overlap. Adhesion is maintained.

(Example) Hereinafter, the exterior panel of the present invention will be described in more detail with reference to the example shown in the accompanying drawings.

FIG. 1 shows an exterior panel 20 according to an embodiment of the present invention. This exterior panel 20 is constructed by folding the periphery of a composite plate made by bonding thin metal plates on both sides of a core material into a V-shaped cut from one metal plate side to the inner core material, as in the past. The box-shaped panel member 21 includes a box-shaped panel member 21 with an open back formed by bending and forming a front panel part 21a and a side panel part 21b around the back surface thereof, and this box-shaped panel member 21 has a structure for attaching it to the outer wall of a building. A support plate 22 is attached to the metal mounting.

This support plate 22 includes a fixing piece 22a fixed to the inner surface of the side panel part 21b of the box-shaped panel member 21, a fixing piece 22a that extends from one end of the fixing piece 22a along the back surface of the front panel part 21a, and The inner support piece 22b is bonded to the inner support piece 22b with adhesive, and the fixing piece 22a extends from the other end of the box-shaped panel member 2 beyond the edge of the side panel portion 21b.
It is composed of one outer support piece (hereinafter referred to as an attachment support piece) 22c that extends outward.

By the way, a corner member 23 made of resin is fitted into the corner of this box-shaped panel member 21 to the adjacent side panel part 21b. That is, the corner member 23 includes an inner fitting piece 23a inscribed in the side panel portion 21b, an outer fitting piece 23b circumscribed therein, and a connecting piece 23c connecting these pieces.
This connecting piece 23c has the parts shown in FIGS.
As shown in the figure, a flange portion 24 is formed that integrally projects outward from the box-shaped panel member 21 beyond the outer fitting piece 23b. The thickness of the flange portion 24 gradually decreases toward the tip end, and the tip end portion 24a becomes sharp and curved somewhat toward the back side. Furthermore, corner member 2
As clearly shown in FIG. 2, 3 includes wrap plates 25 integrally formed at both ends of the integrated portion of the connecting piece 23c and the flange portion 24. This wrap plate 25 is thinner than the thickness of the connecting piece 23, and the back surface is formed by the corner member 23.
A descending step portion 25a is formed on the same surface as that of the main body, ie, on the front surface side. When the corner member 23 is fitted to the box-shaped panel member 21, the end portion of the support piece 22c of the support plate 22 is superimposed on the wrap plate 25, that is, the downward step portion 25a.

On the other hand, the mounting on the supporting plate 22 is performed using the supporting piece 22.
The wrap plate 2 of the corner member 23 mentioned above is attached to the back of the tip of the corner member 23.
A waterproof sealing material 26, such as a butyl rubber batt, is bonded to the parts except for the ends overlapping with the parts 5 by an appropriate means such as an adhesive.

When installing such an exterior panel 20 on the wall of a building using a base steel frame, etc., the adjacent exterior panel 2o can be attached by overlapping the supporting pieces 22c and using screws, as shown in FIG. 27, it is fixed to the base steel frame 28. As a result, the waterproof sealing material 26 is sandwiched between the overlapping parts of the support pieces 22c, whichever side of the supporting pieces 22c is located on the upper side, can be attached to the adjacent exterior panel 20. Since the support pieces 22c are interposed in this manner, this attachment can prevent water from entering inside through the overlapping seams of the supporting pieces 22c. In FIG. 3, reference numeral 29 indicates a fireproof joint backup member inserted into the joint, and 30 indicates a primary waterproof seal member.

Now, when such exterior panels 20 are fixed and installed on the base steel frame 28 as described above, the flange portions 24 of the corner members 23 of each exterior panel 20 overlap with those of the adjacent exterior panels 20. At this time, the corner member 23 is made of resin, the flange portion 24 has a thickness that gradually decreases in the direction of the tip, and the tip portion 24a is sharp and slightly curved toward the back side, so that flexibility is achieved. Therefore, the degree of mutual adhesion is high, and water intrusion from the overlapping portion of the flange portion 24 is completely prevented. In particular, at the intersection of the joints, the four corner members 23 overlap, and the flange portion 24 is flexible and has a thickness that gradually decreases in the distal direction so that the distal end portion 24a is sharpened. This close contact can sufficiently prevent water from entering.

(Effects of the Invention) As explained above, according to the exterior panel of the present invention, the waterproof sealing material is provided on the back of the support piece and the flexible corner member is By gradually decreasing the thickness of the flange toward the tip,
Even if cracks develop in the waterproof filler provided at joints due to deterioration or poor construction, water will be prevented from entering the inside of the exterior panel, and therefore water will not leak into the building. It can be completely prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of an exterior panel according to an embodiment of the present invention, and Fig. 2 is a box-shaped panel member equipped with a support plate for mounting the exterior panel shown in Fig. 1. Figure 3 is a perspective view showing how the corner members are assembled, Figure 3 is a sectional view showing the exterior panel shown in Figure 1 installed using the base steel frame of a building, Figure 4 is a diagram showing how the conventional exterior panel is installed. Figure 5 is a cross-sectional view showing the V-shaped notch that becomes the bending part when the periphery of the composite plate is bent to form a box-shaped panel member, and Figure 6 is a conventional exterior panel building. is a sectional view showing the installation state. 20... Exterior panel, 21... Box-shaped panel member, 2
1a...front panel part, 21b...side panel part,
22... Mounting support plate, 22c... Mounting support piece, 23... Corner member, 24... Flange portion,
24a...Tip portion, 26...Waterproof sealing material. Figure Figure Figure Figure

Claims (1)

[Claims] a box-shaped panel member with an open back having a front panel portion and a side panel portion formed around the back surface thereof; and a mounting support piece fixed to the box-shaped panel member and extending outward from an edge of the side panel portion. , a waterproof sealing material provided on the back surface of the tip of the mounting support piece, and a corner member provided at the corner of the box-shaped panel member, which is similar to the mounting support piece and is attached to the side panel portion. An exterior comprising a corner member having a flexible flange portion projecting outward from an edge, the thickness of the flange portion gradually decreasing toward the tip end. panel.