JPH0227067Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for preventing water intrusion into an engaging portion of a long horizontal exterior wall material that is engaged by a real structure.

For exterior wall materials, extruded materials are most often used because they can be freely obtained in long lengths. Furthermore, in order to reduce the weight, it is usually made as a hollow outer wall material with a large number of parallel through holes. In addition, the facing portions of both ends of the exterior wall material in the longitudinal direction can be formed by extrusion and have an excellent waterproof function after construction, so a solid structure or a mutually interlocking structure is used. In particular, the former structure is often adopted in terms of ease of installation and other aspects.

In general, horizontally extending external wall materials that are engaged by the actual structure are as shown in FIG. 1, which is a perspective view when the external wall material 1 is engaged, and FIG. 2, which is a vertical cross-sectional view of the engaging portion 2.
Another exterior wall material 1 is placed on top of the male part 3 of the upper edge of the exterior wall material 1.
It is fitted into and engaged with the recessed portion of the female portion 4 of the lower end edge. By engaging in this way, rainwater etc. that fall on the outer side 1a of the female part of this exterior wall material 1 normally flows downward and falls to the outside of the other exterior wall material 1 that follows, so that the male part It almost never flows into the inner side 1b.

However, when water hits the engaging part 2 with great force, as in the case of rain accompanied by wind, for example, there is a drawback that it blows up through the gap 2a of the female and male parts 4 and 3 and invades the inner side 1b. Ta.

In view of the above-mentioned circumstances, the present invention aims to provide a water intrusion prevention structure for an exterior wall that does not invade the inside even if rainwater hits the outside of the exterior wall material with force, and the gist is as follows: In the water intrusion prevention structure of the outer wall that is engaged as a main structure with the female part provided along one end edge of the shaku plate material facing up and the male part provided along the other end edge facing down, An outer wall in which a protrusion along the fruit part is provided at the groove bottom of the female fruit part, and the tip of the male fruit part opposite to the protrusion is an inclined surface that slopes downward toward the outside of the outer wall material. It has a water intrusion prevention structure.

The present invention will be explained below with reference to the drawings.

Figures 3 and 4 show an embodiment of the structure for preventing water intrusion of an outer wall according to the present invention, and the reference numeral 11 in the figures indicates a side wall in which a large number of through holes 12 parallel to the longitudinal direction are bored. It is a covered exterior wall material. The upper end edge of the outer wall material 11 in the longitudinal direction is a male part 13, and the lower end thereof is a female part 14. As shown in a perspective view in FIG. The outer wall is formed by sequentially engaging the female portions 14 of the outer wall material 11.

FIG. 4 is a detailed cross-sectional view taken along the - arrow in FIG. 3.

A protrusion (water return) 15 is formed in the groove bottom (inner deep part) 14a of the female fruit part 14 along the fruit part. Further, the tip of the male part 13 facing the groove bottom 14a forms an inclined surface 13a that descends toward the outer side 11a of the outer wall material 11.

Next, the operation of the water intrusion prevention structure for the outer wall according to the present invention constructed as above will be explained.

The water that hits the outside 11a of the exterior wall material 11 with force,
When water enters from the gap 16 between the outer lower end protrusion of the female part 14 and the male part 13, the water jumps in a straight line, so it reaches the groove bottom 14a of the female part 14 and loses its momentum, causing the water return 15 , the direction is changed downward, and it falls onto the inclined surface 13a of the male part 13, and the gap 1
6 and is prevented from entering the inner side 11b of the male fruit. The water flows out from the gap 16 when the force of water hitting the outside 11a weakens.

Reference numerals 21 and 22 in the figure are enlarged spaces provided in the gap 16, which can reduce the force of water entering from the gap 16, temporarily store water falling from the slope 13a, and serve as a water return mechanism. This reduces the amount of water reaching 15. In addition, 23 indicates that when the water force is strong and the water exceeds the tip of the male fruit part 13,
This is a water receiving groove that collects a small amount of water flowing inside and prevents it from flowing downward inside.

As described above, the water intrusion prevention structure according to the present invention can be easily molded without placing any particular burden on the conventional manufacturing process when extruding exterior wall materials.
In addition, since it is possible to easily prevent water from entering the inside of the exterior wall material, the technical effect is great and it is an excellent structure for preventing water intrusion into the exterior wall.

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams showing the engaged state of external wall materials of a normal actual structure, with Figure 1 being a perspective view, Figure 2 being a sectional view taken along the - arrow in Figure 1, Figure 3, and FIG. 4 shows an embodiment of the structure for preventing water intrusion of an exterior wall material according to the present invention, FIG. 3 is a perspective view, and FIG. 4 is a detailed cross-sectional view taken along the - arrow in FIG. 3. 1...External wall material, 1a...Outside, 1b...Inside,
2... Engaging part, 2a... Gap, 3... Male fruit part, 4
...Female part, 11... Exterior wall material, 11a... Outside,
11b...Inside, 13...Male part, 13a...Slanted surface, 14...Female part, 14a...Groove bottom (inner part), 15...Protrusion (water return), 16...Gap .

Claims (1)

[Scope of utility model registration request] In a water intrusion prevention structure of an outer wall that is engaged as a main structure with a female part provided along one end edge of a long board facing upward and a male part provided along the other end edge facing downward. , a protrusion is provided at the bottom of the groove of the female part along the fruit part, and the tip of the male part opposite to the protrusion is an inclined surface that slopes downward to the outside of the outer wall material. A water intrusion prevention structure for the outer wall.