JPH0421363Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications This proposal concerns a water-blocking plate at the joint of the exterior wall panels.

Conventional technology Conventionally, the spaces between precast concrete boards (hereinafter referred to as PC boards) used as exterior wall boards, that is, the joints and grooves, are filled with an elastic sealant of irregular shape to prevent water from entering. I'm stuck.

Problems that the invention aims to solve However, since this sealant has the function of maintaining waterproof performance by following the mutual displacement of external wall panels caused by temperature changes, wind pressure earthquakes, etc. Compared to the service life, the material deteriorates much faster. Therefore, it is desirable to develop a new joint treatment that has a service life equivalent to that of the building.

Means to Solve the Problems Taking these points into consideration, the inventor of the present invention has conducted various studies and has found that by using a water blocking plate at the joint part of the equal pressure joint method, etc., the external pressure can be reduced.
The pressure difference inside the PC board joints can be reduced.

Furthermore, this water blocking plate consists of a main part and an auxiliary part, and the main part is a vertical gutter-like body, which directs moisture coming in from the outside to the gutter part and blocks it from entering inside. The auxiliary part is shaped like four blades and is attached to the main part to prevent rainwater from entering the interior by avoiding the main part and getting around between the main part and the outer wall board. be. In addition, the gutter-like body of the main part is curved in cross section and has a cut open end, so-called gutter-like shapes, and a ring shape that is continuously curved or a bent shape that is a combination of a curved part and a straight part are also adopted. Ru.

Function: In this way, the water flow prevention board can be fixed in a predetermined position simply by inserting it into the joint part of the external wall board, and the construction is easy and it is also resistant to changes in the external wall board.
There is a suitable gap between the PC board and the water blocking board, so
It maintains the waterproofing effect and can also follow deviations in joint width due to construction errors.

Embodiment The present invention will be explained with reference to the embodiment shown in the figure. Figure 1,
Fig. 2 is a top view of one embodiment and a slope view of the water blocking plate, and 1 and 1' are PC boards that are outer wall plates forming joints 2. Reference numeral 3 denotes a water blocking plate according to the present invention, which is made of extrusion molded material such as neoprene rubber, vinyl chloride, or metal plate, and is integrally molded with one gutter-like main part 3a and four blade-like auxiliary parts 3b. ing. It is assumed that rainwater, etc. enters from the outside in the direction of arrow A. The other part 4 is a secondary seal part made of neoprene rubber. The main part 3a of the gutter-like part 3 in Fig. 1 is bent and consists of a combination of a curved part and a straight part, whereas Figs. 3 and 4 show other embodiments of the water blocking plate. The main part 3'a of the gutter-like part 3' is entirely ring-shaped and has a series of curved parts, and the pair of auxiliary parts 3b shown in FIG. 4 are provided with alternating cut parts.

However, although each of the auxiliary parts 3b and 3'b consists of four blades, the number of blades is of course not limited.
Also, the thickness of the auxiliary plate 3b in FIG. 1 is thin at the tip and gradually increases in thickness, whereas the thickness of the auxiliary plate 3'b in FIG.
The thickness width is constant, and these are not limited. Further, an appropriate gap is created between the tips of the auxiliary plates 3b and 3'b and the PC plates 1 and 1'. Also, each pair of wing-shaped auxiliary parts 3b shown in FIG. 4 are cut alternately in the length direction so that air from the sides can easily pass through the cuts, and rainwater can pass through the cut parts of the wing-shaped auxiliary parts 3b. You can also make it so that there is no problem because it hits a place where there is no notch and falls down.

Effects of the invention As described above, by using a mainstream water blocking plate at the joint part of the PC board,
The pressure difference between the external pressure and the PC board joints becomes smaller,
It prevents rainwater from entering from the outside, sufficiently absorbs displacement of the exterior wall boards, maintains waterproofing effects, and can accommodate deviations in joint width due to construction errors.

[Brief explanation of the drawing]

Figure 1 is a top view showing how the water blocking plate of the present invention is used, Figure 2 is a slope view of the same water blocking plate, and Figures 3 and 4 are top views and slopes of other embodiments of the water blocking plate, respectively. It is a diagram. In the figure, 1 and 1' are exterior wall boards, 2 is a joint, 3 and 3' are water blocking plates, 3a and 3'a are main plates of the water blocking plates, and 3
b and 3'b are the same auxiliary boards.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A gutter-shaped main part and a plurality of wing-shaped auxiliary parts protruding outward from the main part formed by extrusion of elastic rubber, vinyl chloride, metal plate, etc. A water flow prevention plate for a joint part of an exterior wall board, which is formed integrally with the outside wall board and installed at a joint of the exterior wall board to prevent water from flowing. (2) A water flow prevention plate for an exterior wall board joint according to claim 1, wherein the gutter-like main part is bent to open, and the bent part is a combination of a curved part and a straight part. (3) A water flow prevention plate for an exterior wall board joint according to claim 1, wherein the gutter-shaped main part is a series of ring-shaped curved parts that are opened at one place.