JPH0316985Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has significantly improved waterproofness and workability.
This relates to architectural exterior materials.

In conventional architectural exterior materials, one side of the exterior material has a convex part and the other side has a concave part that matches the convex part, so that rainwater does not leak from the surface side between the convex and concave sides that are fitted together. When rainwater enters the building, capillary action causes the rainwater to flow inside the exterior material, causing corrosion of the exterior material and moisture entering the room. This capillary phenomenon is achieved by providing a contact portion that partially contacts the surface end of the exterior material and the inner surface of the fitting portion of the other end to be fitted, and
This can be prevented by creating a space inside, but conventional architectural exterior materials are difficult to fit, are unstable, and have complex structures. did.

The present invention improves these drawbacks and provides a building exterior material that has significantly improved waterproofness and workability, is easy to fit, is stable, and has a simple structure.

An embodiment of the present invention will be explained below with reference to the drawings. FIG. 1 illustrates one embodiment of the architectural exterior material 2 used in the present invention, and 2 is an architectural exterior material formed by molding a metal plate 1 and filling the back side with a synthetic resin foam 14. 3 is the architectural exterior material 2
4 is a bottom part formed by bending the lower end of the front base 3 inward, and the other end of the bottom part 4 is bent outward and upward in a dogleg shape to form a protrusion 5. The lower fitting part 6 and the lower insertion piece 7 are formed by bending upward and downward inward into a U-shape, and the upper end of the front base 3 is bent inward and upward into a dogleg shape. to form an inclined surface 10,
The other end of the inclined surface 10 is bent upward to form the joint bottom 9, further extended upward and bent inwardly downward to form the upper insertion piece 8, and further folded upwardly inwardly into a U-shape. A fixing piece 15 is provided by bending it to form an upper fitting part 16 and extending its edge upward from the upper insertion piece 8. Figure 2 shows the main parts of the two pieces of architectural exterior material 2 shown in Figure 1 that are joined and connected. The lower insertion piece 7 of the building exterior material 2 is inserted into the upper fitting part 16 of the architectural exterior material 2 which is nailed and fixed, and 6a in the figure is the lower fitting part 6.
6b is the bottom of the lower fitting part 6 which curves inward and downward in an arc shape from the upper end of the lower fitting part wall 6a, and 8a is an upper insertion piece tip that forms the upper end of the upper insertion piece 8, and is formed to be deeper from the upper insertion piece tip 8a of the upper fitting part 16 than the length of the lower insertion piece 7; Moreover, the height of the protrusion 5 from the lower fitting part wall 6a is formed sufficiently so that the center of the arc of the lower fitting part bottom 6b is on the side of the front base 3 than the upper insertion piece 8, and In the figure, 11 indicates the contact portion 12 and the contact portion 1.
3 is a space formed by the lower fitting wall 6a and the upper insertion piece 8.

In one embodiment of the present invention configured as described above, when the two pieces of architectural exterior material 2 are joined and connected as shown in FIG. contacts the lower fitting part bottom 6b of the other upper architectural sheathing material 2 at the contact part 13 and applies force, but this force is applied to the architectural sheathing material nailed and fixed from the upper architectural sheathing material 2. The force applied to the upper insertion piece tip 8a of the material 2, specifically, the resistance force against the own weight of the upper architectural cladding material 2 and the force of the builder to press the upper architectural cladding material 2, Since the portion 13 is a linear contact, the frictional force is relatively smaller than the above-mentioned drag force and can be ignored in practical terms. Therefore, the vector of the above-mentioned drag force is Insert piece tip 8
It is considered that it lies on the normal line to the contact part 13 with a. In addition, since the bottom of the lower fitting part 6b has an arc shape, and the center of the arc is on the side of the front base 3 from the upper insertion piece 8, the vector of the drag force comes into contact from the center of the bottom of the lower fitting part 6b. It is a vector that lies on a straight line passing through the contact portion 13 and is directed upward from the contact portion 13 and tilts slightly inward. When this vector is decomposed into a vertical component vector and a horizontal component vector, the vertical component vector is a vector directed vertically upward, and the fixed piece 15 of the upper building exterior material 2 is connected to the nail 1.
7, a drag force corresponding to the vertical component vector is generated and balanced, and the lower fitting part bottom 6b of the upper architectural sheathing material 2 is fixed by nailing to the upper insertion piece of the architectural sheathing material 2. The contact portion 13 is pressed against the tip portion 8a, and the horizontal component vector is a vector directed toward the inside of the moisture.
The upper architectural cladding material 2 is pushed inward by the horizontal component vector, and the protrusion 5 of the upper architectural cladding material 2 is pressed against the upper insertion piece 8 of the architectural cladding material 2 which is nailed and fixed. The contact portion 12 is brought into close contact with the protrusion 5, and a drag force that balances the horizontal component vector is applied from the contact portion 12 to the protrusion 5 to balance it.

As described above, according to the present invention, rainwater flows inside the exterior material due to capillary action, causing corrosion of the exterior material and moisture entering the room, which is an important problem in terms of waterproofing in architectural exterior materials made of metal plates. In order to solve this phenomenon, a contact part is provided that partially contacts the surface end of the exterior material on the inner surface of the fitting groove of the other end to be fitted, and a space is formed inside the contact part. The structure that prevents capillary phenomenon can be realized with a simple structure, and since the structure applies force so that each contact part is in close contact with each other, each contact part does not open, resulting in safer construction When fitting and connecting architectural cladding materials, there is no need to pay attention to the opening of each contact part, and workability can be improved, resulting in a building exterior material with significantly improved waterproofness and workability. This is what we provide.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; Fig. 1 is a perspective view of one embodiment, Fig. 2 is a sectional view showing a part of the construction state, and Fig. 3 a to i show metals of other embodiments. It is a sectional view showing a board. DESCRIPTION OF SYMBOLS 1...Metal plate, 2...Architectural exterior material, 3...Front base, 5...Protrusion part, 6...Lower fitting part, 7...
...Lower insertion piece, 8...Upper insertion piece, 11
. . . space portion, 12, 13 . . . contact portion, 15 . . . fixing piece.

Claims (1)

[Claims for Utility Model Registration] 1. The lower end 1 side of the front base 3 of the architectural exterior material 2 formed by molding the metal plate 1 is bent inward to form the bottom portion 4; The other end is bent upward and then bent downward into a substantially U-shape to form a lower fitting part 6 and a lower insertion piece 7, and another end is formed between the lower fitting part 6 and the lower insertion piece 7. In the architectural exterior material 2, the projections provided at the bent portions of the bottom part 4 and the lower fitting part 6, etc., are formed so that the upper insertion piece 8 provided on the other side of the architectural exterior material 2 can be fitted. 5, etc. and the upper insertion piece 8, and the lower fitting part wall 6a and the upper insertion piece 8 between the contact part 13 formed by the bottom 6b of the lower fitting part and the tip 8a of the upper insertion piece 7. This architectural exterior material is characterized in that a space part 11 is provided in the contact part 13, and a downward normal line erected on the surface of the lower fitting part bottom 6b in the contact part 13 is directed in the direction of the front base part 3. 2. The architectural exterior according to claim 1, which is a contact portion 12 constituted by a protrusion 5 provided at the bent portion of the bottom portion 4 and the lower fitting portion 6, and the upper insertion piece 8. Material. 3 Contact portion 12 constituted by protrusion 5 provided on lower fitting portion wall 6a and upper insertion piece 8
Architectural exterior material according to claim 1 of the utility model registration claim. 4. The architectural exterior material according to claim 1, wherein the contact portion 12 is constituted by the lower fitting portion wall 6a and the upper insertion piece protrusion 8b provided on the upper insertion piece 8. 5. The lower fitting part bottom 6b and the upper insertion piece 8 are in contact with each other and fitted together so that the lower fitting part bottom 6b has an arc shape and the center of the arc is on the side of the front base 3 than the upper insertion piece 8. Architectural exterior material according to claim 1 of the utility model registration claim. 6 The lower fitting part bottom 6b has a linear shape, and the lower fitting part bottom 6b and the upper insertion piece tip 8
The architectural exterior material according to claim 1, wherein an upward extension line of the lower fitting portion bottom 6b from the contact portion 13 of a is the lower fitting portion bottom 6b extending toward the side of the front base 3. 7 Utility model registration claim No. 1, in which the top insertion piece tip 8a is bent inward and upward in a dogleg shape.
Architectural exterior materials listed in Section 1.