JPS5849286Y2 - wall board material - Google Patents

Description

[Detailed explanation of the idea] This invention relates to wall board materials.

When joining exterior wall panels horizontally, the ends of the wall panels are sometimes butted together without using a drain joiner, but with such a joining method, rainwater that enters from the joint joints spreads over a wide area on the back side of the wall panels. There are some problems.

The wall board material according to the present invention was devised to solve the above-mentioned difficulties, and has a structure that extends upward and diagonally from the edge of the wall board material on the back side of the horizontal end of the wall board material to be horizontally spliced. , the wall panel is characterized in that a large number of grooves are provided in the edge of the wall plate.

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

FIG. 1 shows a wall board material according to the present invention.

Reference numeral 1 indicates a board material such as an asbestos cement board, a calcium silicate board, or a glass fiber reinforced cement board, 2 indicates the back surface of the board material, and 3 indicates the lateral edge of the board material where the horizontal joint is to be made.

4, 4, . . . indicate water return grooves provided on the back surface of the edge of the plate material, which have a vertical groove 41, and the vertical groove 41 is located at the edge 3 of the plate material.
This groove 42 is connected to a groove 42 rising upward in an oblique direction, and this groove 42 is opened to the edge 3 of the plate material.

The vertical groove 41 of the lower water return groove surrounds the upward diagonal groove 42 of the upper water return groove, in line with the upper and lower water return grooves.

Figure 2 shows the back side of the joint when the wall panels of the present invention are butt-jointed, and rainwater W entering through the butt joint is
Water is captured by the water return groove 4, and is returned to the wall board butt point 30 through the upward diagonal groove 42 of the water return groove 4, so that rainwater entering through the joints spreads to the back surface of the wall board. can be prevented.

In particular, in the illustrated embodiment, the above-mentioned prevention effect is excellent because the upper and lower water return grooves overlap to form a double drain structure.

Further, FIG. 3 shows another embodiment of the present invention, in which a plurality of protrusions 5 are provided on the back surface of the plate 1 and stand up in an upward diagonal direction from the edge 3 of the plate, and are formed between the upper and lower protrusions 5. The trough is used as a water return groove 4.

As mentioned above, according to the present invention, rainwater that enters from the joining joints of the planks is prevented from spreading over a wide area on the back side of the wall planks, so it is possible to create a wall that allows good joining of rainwater without using a drain joiner. We can provide board materials.

[Brief explanation of drawings]

Figure 1 is a rear perspective view showing the wall board material according to the present invention;
The figure is an explanatory view showing the back side of the joint of the wall plate material of the present invention, and FIG. 3 is a perspective view of the main part showing another embodiment of the present invention. In the figure, 1 is a plate, 2 is the back side of the plate, 3 is the edge of the plate, 4, 4, . . . are water return grooves, and 41 is a groove rising upward in an oblique direction.

Claims (1)

[Scope of utility model registration request] A wall characterized in that a number of grooves are provided on the back side of the lateral ends of the wall board materials to be horizontally spliced, rising upward and diagonally from the edge of the wall board material and opening to the edge of the wall board material. Board material.