JPH0524727Y2 - - 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. It is used in a fusei.

Problems that the invention aims to solve: However, since the sealing material for the lever has the function of maintaining waterproof performance by following the mutual displacement of external wall panels caused by temperature changes, wind pressure, earthquakes, etc., the service life of the building If you compare the materials, the deterioration of the material is much faster. Therefore, there is a need for a new joint treatment whose service life is the same as 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 decided to use a water-flow blocking plate with an opening on the side of the spine at the joint part of the equal-pressure joint method, etc. This makes it possible to reduce the pressure difference between the external pressure and the inside of the PC board joint. Furthermore, this water flow prevention plate has a spine plate as its main body and a side plate, and an opening for air introduction is provided in this side plate to stabilize the inflow of air.
This prevents a pressure difference between the inside and outside, which prevents rainwater from entering the inside. In addition, by using an opening whose proportion is appropriately changed relative to the area of the entire side plate, an optimum state of rainwater prevention can be maintained.

Function: Thus, the water flow prevention board can be fixed in the specified position simply by inserting it into the joint part of the external wall board, and the construction is easy.In addition, by providing an opening on the side of the spine board, the inflow of air can be prevented. This stabilizes the structure and eliminates the pressure difference between the inside and outside, preventing rainwater from seeping in.

Example The present invention will be explained with reference to the embodiment shown in the figure.

FIGS. 1 and 2 are a top view and a perspective view of a water blocking plate of one embodiment, and 1 and 1' are PC boards, which are outer wall panels, forming joints 2. 3 is a water blocking plate according to the present invention, which is made of extrusion molded neoprene rubber, vinyl chloride, or bent stainless steel or aluminum metal plate, and is a spine plate 3a that prevents rainwater from entering the inside of the PC board from outside. and both side plates 3b, 3b form a cross-shaped body. Furthermore, in this proposal, openings 3c, 3c are provided in these side plates 3b, 3b to introduce stable air as shown by the arrows in Figure 1, thereby preventing a difference in air pressure between the inside and outside around the water flow prevention plate. This is effective for waterproofing as it prevents rainwater from entering. Most of the rainwater is in the spinal plate 3a.
By appropriately selecting the area of the opening 3c with respect to the total area of the side plates 3b, 3b, it is possible to appropriately select the area for the set external pressure and to change it as appropriate. In addition, 7 is a secondary seal made of neoprene rubber, and 8 is a fireproof joint material. Figure 3~
Fig. 5 shows a modified embodiment of the water blocking plate, and Fig. 3 shows one spine plate 4a as the water blocking plate 4, which is bent to the left and right along the longitudinal direction, and most of the rainwater that hits the plate from the front is directed to the spinal plate. By appropriately selecting the area of 4c that forms the side plate opening that is prevented by 4a and partially goes around, it is possible to obtain an appropriate size for the set external pressure and make the waterproof effect effective. Further, the water flow prevention plate 5 shown in FIG. 4 has a spine plate 5a with a bent portion, and the opening 5c is provided in the side plate 5b as in the case of FIG. 2. Also, the water flow prevention plate 6 in FIG.
Both side plates 6b, 6b projecting left and right with respect to a are provided, and an opening 6c is provided between these side plates. Further, the plates and openings on both sides of the spine plate 6a may be provided alternately on the left and right sides. Further, as shown in FIG. 6, a large number of holes 8c may be provided on both sides 8b, 8b of the U-shaped plate 8a.

Effects of the invention As described above, the present invention stabilizes the inflow of air by using a water blocking plate with openings on the side at the joint part of the PC board.
It eliminates the pressure difference within the PC board joints to prevent rainwater from entering from outside, and it also sufficiently absorbs the displacement of the exterior wall boards to maintain its waterproofing effect, and can also accommodate deviations in joint width due to construction errors. . In addition, by using a vertically continuous spine plate, it is easy to insert from above, and the length can be easily set.

[Brief explanation of the drawing]

Figure 1 is a top view showing how the water flow prevention plate of the present invention is used, Figure 2 is a slope view of an example of the same water flow prevention plate, and Figures 3, 4, 5, and 6 are for water flow prevention. It is a deformed oblique view of a blocking plate. In the diagram, 1, 1' are exterior wall boards, 2 is joints, 3, 4, 5,
6 is a water blocking plate; 3a, 4a, 5a, and 6a are spine plates of the water blocking plate; 3b, 4b, 5b, and 6b are side plates of the water blocking plate; and 3c, 4c, 5c, and 6c are openings.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In addition to forming a joint 2 between the PC boards 1 and 1' which are external wall boards, and providing a secondary seal 7 and a fireproof joint material 8,
A running water blocking plate for an exterior wall board joint, which is provided with a running water blocking plate 3 consisting of a back plate 3a for blocking running water and an air introduction opening 3c on the side thereof. (2) Scope of Utility Model Registration Claim 1, comprising a back plate 3a, and side plates 3b, 3b on one side of the back plate 3a, with openings 3c, 3c provided between the side plates 3b, 3b. Water flow prevention plate at the joint of the exterior wall boards as described. (3) It has a back plate 6a and side plates 6b, 6b that can protrude to the left and right sides around the back plate 6a, and the side plates 6
A water flow prevention plate for an exterior wall board joint according to claim 1, wherein an opening 6c is provided between b and 6b. (4) A request for registration of a utility model consisting of a back plate 8a and two side plates 8b, 8b on one side of the back plate 8a in a U-shape, with numerous holes 8c provided in both side plates 8b, 8b. A water flow prevention plate for an exterior wall board joint according to item 1.