JPH021371Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a backwater prevention tile that has a weir provided on the head surface of the tile.

The practicality of a tiled roof is, first of all, that it does not leak water. Other performance requirements include strength, fire protection, durability, ventilation, heat insulation, light weight, economy, and construction, but high waterproof performance is the most important.

Nowadays, as aesthetics are emphasized, roofs with a gentle slope and roofs with complicated shapes are preferred, but the roof slope needs to be at least 4.5/10 (4 suns and 5 minutes), and for long roofs, the slope is higher than this. roof slope is required.

Therefore, the generally used cross tiles are equipped with water returns at the bottom and the end of the insertion part, or in special cases, have two or three rows of water returns to prevent the backflow of rainwater, etc. We are trying to prevent this.

However, on a roof with a gentle slope, these backwaters alone cannot prevent water from flowing back. That is,
Since the tiles are installed by stacking them on top of each other, the height of the water return is limited, and there is a structural drawback that the roof tiles are only about 5mm high. be. However, despite this drawback, the inventor of the present invention has developed a cross tile that has substantially improved the height of the water return by providing a horizontal part at the base of the water return, in other words, creating a structure in which the base of the water return is scraped away. I'm avoiding it.

However, even with this improved crosspiece tile, in cases of heavy rain, etc., a large amount of water is drawn in from the tip of the head of the crosspiece tile, and it may not be possible to prevent the water from flowing only by turning the water back.

Therefore, in order to completely prevent backwater, it is first necessary to prevent entrainment from the tip of the head.

As a result of intensive research, the inventor of this invention focused on the fact that the part where the most rainwater flows is the deepest part of the curved part of the roof tile, and designed a wall that is shaped like a square in plan view in order to distribute the rainwater flowing through this part to the left and right. We have developed a backwater prevention tile with ridges.

In other words, by providing the protrusions in the backwater prevention tile according to the present invention, firstly, most of the rainwater is distributed to the left and right on the V-shaped wall surface, so that it does not flow out and concentrate in one part. It is. Secondly, this protrusion has the effect of also functioning as a snow stopper in snowy areas.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 shows a backwater prevention tile 1 showing an embodiment of the present invention, in which a V-shaped protrusion 2 is provided on the surface of the head of the main body 5.

By providing this protrusion 2, the flow of rainwater concentrated at the deepest part of the main body 5 can be distributed to the left and right, thereby preventing rainwater from being drawn in from the tip of the head 6 at the deepest part. Furthermore, in snowy areas, snow accumulates on the protrusions 2, which also serve as a snow stopper.

As shown in the figure, the protruding portion 2 is configured to disperse rainwater from side to side with a wall surface having a V-shaped cross section, but the same method can be applied to a semicircular or trapezoidal wall surface when viewed in cross section. be able to.

FIG. 2 is a perspective view showing another embodiment of the present invention.
A rectangular weir 7 is provided on the head surface of the main body 5, and this weir 7
This is a backwater prevention tile 1 in which a groove 3 is dug in a V-shape that widens downward.

The weir 7 is installed at the deepest bent part of the main body 5, that is, the part where the most rainwater collects, so by temporarily damming up the rainwater in this part, the rainwater flows out from the weir 7 evenly. This prevents rainwater from getting caught up in the water. In addition, even with a normal amount of rainfall, the groove 3 provided in the weir 7 distributes the rainwater to the left and right, so that it can flow out uniformly without concentrating on the deepest part of the main body 5.

Therefore, this groove 3 has the same function as the wall surface of the previous embodiment, and the portion having this wall surface is the protrusion portion 2 itself. Further, the cross-sectional shape of the groove 3 may also be semicircular or inverted trapezoidal.

What is shown in FIG. 3 is a longitudinal sectional view of what is shown in FIG. This is because when there is a notch on the back side of the head of the main body 5, that is, when the main body 5 has a recessed part 4 that is hung on a crosspiece to be used as a tile without crosspieces, the strength of this part can be increased by providing the weir 7. It has the effect of being able to.

In this way, by providing the weir 7, the flow of rainwater is dispersed, preventing rainwater from being drawn in from the tip of the head 6, and moreover, the strength of the main body 5 itself can be increased, which has the effect of killing two birds with one stone. be.

Of course, there is no problem even if the weir 7 is provided on a tile that does not have the recessed part 4, and this weir 7 also has the function of a snow stopper like the protrusion part 2 mentioned above. Not even.

As described above, the backwater prevention tile according to the present invention can distribute rainwater that concentrates at the deepest part of the main body to the left and right by the protruding part having a wall surface with the letter C in plan view on the curved part of the head surface. It is possible to prevent rainwater from being drawn in from the tip of the head of the head, and the square-shaped grooves dug in the rectangular weir on the surface of the head temporarily dam up rainwater in this area, allowing rainwater to flow out from the weir evenly. Therefore, it is possible to prevent rainwater from getting caught up from the tip of the head of the tile, and even in normal rainfall, the grooves installed in the weir can distribute rainwater to the left and right.It also increases the strength of the main body and is suitable for use in snowy areas. Even when used as is, it can trap even a small amount of snow, and has the function of a snow stopper.Furthermore, the protrusion or weir can act as a foothold when working on the roof, preventing workers from falling off. This has the extremely beneficial effect of improving construction safety.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view showing another embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of the one shown in FIG. 2. 1... Backwater prevention tile, 2... Projection, 3...
Groove, 4... recess, 5... main body, 6... head, 7
...weir.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Providing on the head surface of the crosspiece tile a protrusion having a V-shaped wall surface in plan view that expands downward from the deepest part of the curved part of the head. A backwater prevention tile featuring the following. 2. The backwater prevention tile according to claim 1 of the utility model registration claim, wherein the protrusion portion is constituted by a wall surface formed by a groove dug in a weir provided on the surface of the tile head.