JP3100423U - Roof tile for gentle slope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the rainwater reverse leakage phenomenon of a roof tile having a gentle slope.
SOLUTION: The dripping of a valley portion of a tile is provided with a triangular guiding slope, and the rainwater collected in the valley portion is accelerated by the guiding slope, and the rainwater of the upper tile is moved to a position farther from the overlapping portion. By guiding, the trapped rainwater in the polymerization section was suppressed, and the structure was less likely to cause the reverse leakage phenomenon.
[Selection diagram] Fig. 1

Description

(4) The present invention relates to a water dripping structure that suppresses rainwater reverse leakage of a roof tile having a gentle slope.

(4) When the roof has a low gradient, rainwater tends to flow backward through the overlapping portion of the tile to the roof ridge side as shown in FIG. In particular, this phenomenon is apt to occur in the case of wind and rain, which is a problem. As a countermeasure against this reverse leakage, the provision of a convex water return 9 has been conventionally used. However, in the case of strong winds and rains, it often overflows the water return and leaks backward.

In the overlapping portion of the tile, if the trapping of rainwater from the hanging portion to the back surface of the tile and the rainwater of the upper tile can be guided as far as possible from the overlapping portion, such a reverse leak phenomenon is unlikely to occur. As a method for this, a roof tile provided with a discontinuous weir for water sprinkling before water dripping (for example, see Non-Patent Document 1), or a roof tile having a two-stage structure for the purpose of accelerating water flow (for example, See Patent Document 1). In the case of a system in which a discontinuous weir is provided (the appearance is shown in FIG. 5), dust, leaves, and the like may accumulate in gaps between the weir and the weir, obstructing the water flow and inducing an adverse effect. In addition, a two-stage hanging structure roof tile (an overview is shown in Fig. 6) simply aims at accelerating the water flow by using a step. If the roof slope becomes gentle, it is not always possible to guide rainwater farther. .
"Ino tile industry catalog disaster prevention tile perfect", Ino tile industry JP-A-6-88402

If the slope of the roof is gentle, when rainwater flows down from the dripping of the tile to the lower tile at the overlapping part, rainwater is caught in the gap of the overlapping part and flows backward to the ridge side, overflowing the water return and causing reverse leakage It is easy to cause a phenomenon called. Generally, the slope of the roof is 4/10 (about 22 ゜) or more, but recent roofs are 3/10 (about 17 ゜) or 2.5 / 10 (about 14 ゜) depending on circumstances such as economy and workability. ), And reverse leakage countermeasures are strongly required.

As a specific means for solving this problem, the present invention assumes that a dripping of a valley of a tile is provided with a triangular guiding slope, and rainwater collected in the valley is accelerated by the guiding slope to accelerate the water flow. By guiding the rainwater from the roof tile to a position farther from the overlapping section, the trapping of rainwater in the overlapping section was suppressed, and a structure that did not easily cause the reverse leakage phenomenon was achieved.

According to the roof tile of the present invention, the rainwater converges on the triangular dripping in the valley, and the water flow is accelerated by the guide slope having an inclination angle of 6 to 12 °, and the water flow is guided as shown in FIG. Even in the case of 3/10 or 2.5 / 10, the induced gradient of the water flow is almost equal to or higher than the general roof gradient. As a result, even when the roof slope becomes gentle, the entrapment of rainwater in the overlapping portion is suppressed. This can prevent the reverse leakage phenomenon.
The tile of the present invention has the effects of a simple shape, hardly causing attachment of dust and dirt, easy formation, small firing distortion, and easy tile formation during construction.

瓦 The tile of the present invention will be described. Fig. 1 shows an overview of the tile according to the present invention. The feature is that a triangular dripping is provided in the valley. In the case of laying tiles on a gently sloping roof, it is particularly necessary to take measures to prevent the reverse leakage phenomenon. The tile of the present invention is extremely effective in this case. That is, as shown in FIG. 3, the rainwater flowing in the valley converges on the triangular water dripping 1 and the water flow is accelerated to form a water dripping scattered water flow 14 and flows down the roof tile. Thereby, the entrapment of rainwater in the polymerization section is suppressed, and the reverse leakage phenomenon can be prevented.

(4) In the conventional roof tile, the rainwater is mainly a dripping vertical surface falling water flow 15 as shown in FIG.

The shape of the triangle dripping 1 is suitably a triangle having a base of 90 to 110 mm and a length of 40 to 60 mm, and an inclination angle of 6 to 12 °. Thus, the roof tile of the present invention has a simple shape and is therefore easy to mold. In addition, since the distortion during firing can be suppressed to a small value, the tiles can be easily formed during construction. It is easier to prevent rainwater from becoming a dripping and scattered water flow 14 and becoming a dripping vertical surface falling water flow 15 to form a water flow 16 when the water flow is not straight but a straight line. Become.

It is a perspective view of the tile of the present invention. It is a perspective view of a general roof tile. It is a figure which shows the partial enlarged view of the AA line cross section in the state that the tile of this invention was roofed, and a water flow. It is a figure which shows the partial enlarged view of the AA line cross section in the state which the general tile was roofed, and a water flow. It is a perspective view of the roof tile of nonpatent literature 1. It is a perspective view of the roof tile of patent document 1.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Triangle dripping 2 Dripping inclination angle 3 Dripping bottom 4 Dripping length 5 Dripping slope 6 Dripping corner 7 Dripping vertical plane 8 Dripping part 9 Water return 10 Valley part 11 Pier pass part 12 Head 13 Bottom part 14 Water dripping and scattering water flow 15 Water dripping vertical surface falling water flow 16 Water flow entrained in the overlapping part

Claims (2)

瓦 A tile having a structure in which a triangular water dripping is provided in a valley, and rainwater flowing in the valley converges into the triangular water dripping, and the water flow is accelerated and flows down to a lower tile. 4. The roof tile according to claim 1, wherein the bottom of the dripping is a flat slope having a triangular shape of 90 to 110 mm and a length of 40 to 60 mm and an inclination angle of 6 to 12 [deg.].

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