JP6742029B2 - Disaster prevention roof and roofing structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a disaster prevention roof tile that is installed on a roof of a house or the like, and a roofing structure using the disaster prevention roof tile.

Conventionally, as a disaster prevention roof tile (flat roof tile) to be laid on a gently sloping roof, by inserting the engagement insertion portion of another disaster prevention roof tile from the side into the engagement protrusion provided on the bottom end of the roof tile. An engaging structure is known (Patent Document 1).

JP, 2006-150980, A

However, in the disaster prevention roof tile having such a structure, the roof protrusions are peeled off from the roof because the engaging protrusions are engaged with the engaging inserts until a certain amount of force is applied by storms or the like. Although it is possible to prevent the roof tiles from being broken, if a certain amount of force is applied, there is a problem that not only the roof tile main body but also the roof plate for fixing the roof tile main body is peeled off together.

Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional disaster prevention roof tiles, and to provide a disaster prevention roof tile and a roofing structure for preventing the ground plate from being peeled off even when a force of a certain amount or more is applied to the roof tile body. It is in.

In order to achieve the above object, the invention described in claim 1 is formed along a side edge of the roof tile main body, a water return portion formed along an end edge of the roof tile main body side, and a side edge of the roof tile main body. And an insertion portion that overlaps with the lower side of the roof tile body of another disaster prevention roof tile that is installed adjacently, and engages with the insertion portion of the other disaster prevention roof tile that is installed above the water return section. A disaster prevention roof tile provided with an engagement projection to be formed, the insertion portion is formed with an engaged surface with which an engagement projection of another disaster prevention roof tile installed on the lower side is engaged,
The engagement protrusion is formed in a hook shape including a rising portion that extends upward from the surface of the water return portion, and a tip portion that extends laterally from the rising portion and is engageable with the engaged surface,
The engaged surface of the insertion portion is inclined upward in a direction in which the insertion portion gradually becomes thicker from the end toward the roof tile body side, and the lower surface of the tip end is the same as the engaged surface. Is inclined at an angle,
The height of the inner surface of the rising portion is more than twice the wall thickness of the end portion of the insertion portion forming the engaged surface ,
The inclination angle of the engaged surface and the lower surface of the tip portion is in the range of 20° to 40° .
In order to achieve the above object, the invention according to claim 2 provides a plurality of disaster prevention roof tiles according to claim 1 , wherein the lower disaster prevention roof tile engaging projections are covered by the upper disaster prevention roof tile insertion portion. A tiled structure that is laid in a staggered manner so as to engage with the engagement surface,
With the engagement projection and the insertion portion engaged, the lower surface of the insertion portion and the surface of the water return portion, and between the engaged surface and the lower surface of the tip end are not in contact with each other. It is characterized by
According to a third aspect of the present invention, in the configuration of the second aspect, a distance of 2 mm is provided between the lower surface of the insertion portion and the surface of the water return portion, and between the engaged surface and the lower surface of the tip portion. The above-mentioned gap is formed.

According to the present invention, the engaged surface of the insertion portion and the lower surface of the tip of the engagement projection are inclined surfaces that are parallel to each other, and the height of the inner surface of the rising portion of the engagement projection is Since the thickness is more than twice the wall thickness of the end of the part, if a certain amount of force is applied to other disaster prevention roof tiles, the engagement between the engagement protrusion and the insertion part will be released and only the disaster prevention roof tile will fall off. To do. Therefore, the roof plate is prevented from being peeled off.
Particularly, if the inclination angle between the engaged surface and the lower surface of the tip end portion is within the range of 20° to 40°, the engagement can be released smoothly.

(A) shows the front of a disaster prevention roof tile, (b) is the surface seen from the head side of a disaster prevention roof tile, (c) is explanatory drawing which shows the AA line cross section of (a). It is explanatory drawing which shows the state which the insertion part of another disaster prevention roof tile engaged with the engagement protrusion of disaster prevention roof tile. (A) shows the surface seen from the head side of FIG. 2, (b) is the BB line cross section of FIG. 2, (c) is explanatory drawing which shows the enlarged state of the engaging part of (b). is there. (A)-(c) is explanatory drawing which shows the process of the state where engagement is released from the state which the insertion part engaged with the engagement protrusion.

Hereinafter, an embodiment of the disaster prevention roof tile of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory diagram showing a disaster prevention roof tile. FIG. 2 is an explanatory diagram showing a state in which the engaging protrusions of the disaster prevention roof tile are engaged with the insertion portions of other disaster prevention roof tiles. FIG. 3 is an explanatory view showing the engaging portion. FIG. 4 is an explanatory view showing a process in a state where the insertion portion is disengaged from the engagement protrusion engaged with the engagement protrusion.

As shown in FIG. 1( a ), the disaster prevention roof tile 1 includes a roof tile body 2, an insertion portion 3 formed along a side edge of the roof tile body 2, and an end edge of the roof tile body 2 on the bottom side. The water repelling part 6 formed by
Of these, as shown in FIGS. 1(b) and (c), the head side of the insertion portion 3 is engaged with the engagement protrusion 7 of another disaster prevention roof tile 1 that is installed underneath. A surface 4 is provided, and a ridge 5 is provided around the engaged surface 4. As shown in FIG. 3C, the thickness t of the end of the insertion portion 3 where the engaged surface 4 is formed is about 4.0 mm from the bottom surface 10 of the insertion portion 3. Further, the engaged surface 4 is an inclined surface that gradually rises in a direction in which it becomes thicker from the end portion of the insertion portion 3 toward the tile main body 2 side, and the inclination angle D thereof is a disaster prevention tile. It is about 30° with respect to the bottom surface 10 of 1.

On the other hand, the water return part 6 has a rising part 8 extending upward from the surface of the water returning part 6 and a tip part 9 extending laterally from the rising part 8 (on the side opposite to the insertion part 3 ). Engagement protrusions 7 are provided that are entirely hook-shaped.
Of these, the height H of the inner surface of the rising portion 8 is about 8.0 mm, which is about twice the thickness t (about 4.0 mm) of the end portion of the insertion portion 3 where the engaged surface 4 is formed. Has become. Further, the lower surface 11 of the tip portion 9 is an inclined surface that is inclined at the same inclination angle D as the engaged surface 4.

Roofing using the disaster prevention roof tiles 1, 1... Configured in this way is performed as follows. In the following, the disaster prevention roof tiles that are installed on the lower side (eave side) will be identified as 1a, and the disaster prevention roof tiles that are installed on the upper side (ridge side) will be identified as 1b. Distinguish by.
As shown in FIGS. 2 and 3(a) and (b), the evacuation tiles 1a on the eaves side of the roof plate 12 are overlaid with the evacuation tiles 1b on the eaves side from the hip side. The insertion portion 3b of the disaster prevention roof tile 1b is engaged with the engagement protrusion 7a in accordance with the position of the engaged surface 4b, and roofing is performed sequentially.

In the thus tiled state, as shown in FIG. 3(c), a vertical gap is formed between the surface of the water return portion 6a of the disaster prevention tile 1a and the bottom surface 10 of the insertion portion 3b of the disaster prevention tile 1b. S1 is formed, and a gap S2 is formed between the lower surface 11a of the tip 9a of the engaging projection 7a and the engaged surface 4b of the insertion portion 3b in the direction orthogonal to the inclined surface to engage The projection 7a and the insertion portion 4b are in a non-contact state as shown in FIG. 4(a). The gaps S1 and S2 here are approximately 2.0 mm.

In this state, as shown in FIG. 4(b), when the disaster prevention roof tile 1b floats up in the direction indicated by the arrow due to strong wind or the like, the engaged surface 4b comes into contact with the lower surface 11a of the tip 9a of the engaging projection 7a, The engaged surface 4b is engaged with the engaging projection 7a, and the disaster prevention roof tile 1b is prevented from further floating.

When a force is further applied from this state in the direction indicated by the arrow, the force is transmitted from the engaged surface 4b of the disaster prevention roof tile 1b to the engagement projection 7a, and a force of floating upward is also applied to the disaster prevention roof tile 1a.
However, if a force is further applied to the disaster prevention roof tile 1b from this state, as shown in FIG. 4C, the disaster prevention roof tile 1b is rolled up in the direction indicated by the arrow around the position where it contacts the lower surface 11a, and the target roof tile 1b remains uncovered. Due to the inclination of the engagement surface 4b and the lower surface 11a, the disaster prevention roof tile 1b is guided in the direction in which the engagement between the engaged surface 4b and the tip portion 9a is released, and only the disaster prevention roof tile 1b is disengaged from the locking projection 7a. take off. As a result, the force transmitted to the disaster prevention roof tile 1a is blocked and the disaster prevention roof tile 1a is prevented from rising. As a result, it is possible to prevent the base plate 12 from being peeled off together with the disaster prevention roof tile 1a.

According to the disaster prevention roof tile 1 and the roofing structure configured as described above, the engaged surface 4 of the insertion portion 3 is gradually thickened as the insertion portion 3 goes from the end portion to the roof tile main body 2 side. The lower surface 11 of the tip portion 9 of the engaging projection 7 is inclined at the same angle as the engaged surface 4, and the height of the inner surface of the rising portion 8 is equal to the engaged surface 4 Since the wall thickness of the end portion of the insertion portion 3 forming the groove is twice or more, when the force of a certain level or more is applied to the other disaster prevention roof tile 1, the engagement protrusion 7 and the engaged surface 4 are engaged with each other. It is prevented that the roof plate 12 of the roof is peeled off after the binding is released.
In particular, since the inclination angle D between the engaged surface 4 and the lower surface 11 of the tip end portion 9 is in the range of 20° to 40°, the engagement protrusion 7 and the engaged surface 4 can be released smoothly. To be done.

The disaster-prevention roof tile according to the present invention is not limited to the above-described embodiment at all, and the shape and size of the insertion portion and the engaging projection are appropriately changed without departing from the spirit of the present invention. can do.

For example, the number of engagement protrusions 7 is not necessarily one as long as it can prevent the base plate 12 from being peeled off together with the disaster prevention roof tile 1, and a plurality of engagement protrusions 7 may be provided.

Besides, it is not always necessary to provide the protrusion 5 of the insertion portion 3, and it suffices that the engaged surface 4 and the lower surface 11 of the tip end portion be provided in parallel, and it can be appropriately changed. In addition, the inclination angle D of the engaged surface 4 and the lower surface 11 of the tip portion 9 is about 30° with respect to the bottom surface of the disaster prevention roof tile 1, but if it is less than about 20°, the engaging protrusion 7 and It is difficult to smoothly release the engagement with the engaged surface 4, and if the engagement angle exceeds about 40°, the engagement between the engagement protrusion 7 and the engaged surface 4 is easily released. An angle within the range of -40° is suitable.
Further, the gaps S1 and S2 are each about 2.0 mm, but can be changed as appropriate as long as they are engaged and disengaged smoothly.

The height H of the rising portion 8 is about 8.0 mm, and the thickness t of the tip of the engaged surface 4 is about 4.0 mm. It suffices that and are in surface contact with each other for stable engagement, and that the height H of the rising portion 8 is at least twice as large as the height H of the tip end of the engaged surface 4.

1...Disaster prevention roof tiles 2... Roof tile main body 3... Insertion portion 4... Engagement surface 5... Projection ridges 6... Water repelling portion 7... Engagement projections 8... Rise, 9... tip, 10... bottom, 11... bottom, 12...

Claims (3)

The roof tile body, the water repellent portion formed along the edge of the roof tile body on the butt side, and the roof tile body of another disaster prevention roof tile that is formed along the side edge of the roof tile body and is installed adjacent to it. With an insertion part that overlaps on the lower side of
An engagement protrusion that engages with an insertion portion of another disaster prevention roof tile that is installed on the upper side is provided on the water return portion, and a member of another disaster prevention roof tile that is installed on the lower side of the insertion portion is provided. A disaster prevention roof tile in which an engaged surface with which a mating protrusion engages is formed,
The engagement protrusion is formed in a hook shape including a rising portion that extends upward from the surface of the water return portion, and a tip portion that extends laterally from the rising portion and is engageable with the engaged surface. ,
The engaged surface of the insertion portion is inclined upward in a direction in which the insertion portion gradually becomes thicker from the end portion toward the roof tile main body side, and the lower surface of the tip end portion is It is inclined at the same angle as the engaged surface,
The height of the inner surface of the rising portion is at least twice the wall thickness of the end portion of the insertion portion forming the engaged surface ,
The disaster prevention roof tile, wherein the angle of inclination of the engaged surface and the lower surface of the tip portion is in the range of 20° to 40° . The plurality of disaster prevention roof tiles according to claim 1 are zigzag-shaped so that the engagement protrusions of the lower disaster prevention roof tiles engage with the engaged surfaces of the insertion portions of the upper disaster prevention roof tiles. A roofing structure to be provided, in a state in which the engagement projection and the insertion portion are engaged, between the lower surface of the insertion portion and the surface of the water return portion, and the engaged surface. The roofing structure is characterized in that it is not in contact with the lower surface of the tip portion. A gap of 2 mm or more is formed between the lower surface of the insertion portion and the surface of the water return portion, and between the engaged surface and the lower surface of the tip end portion, respectively. The roofing structure according to claim 2 .

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