JP2006188900A - Flat roof tile - Google Patents

Abstract

The present invention provides a flat roof tile which does not cause a backflow of rainwater in an insertion portion even when the working length of the flat roof tile is increased, and has a compact packing form when a plurality of flat roof tiles are stacked.
A flat roof tile 1 having a bottom water return portion 2 having a step shape higher than an exposed surface E that receives rain is formed in the bottom portion B, and a step shape lower than the exposed surface is formed on a side portion of the flat roof tile. The insertion part C is formed. Then, a step 13 higher than the other part C2 of the insertion part is provided at the bottom part C1 of the insertion part, and rainwater enters the insertion part from a gap formed by adjacent flat roof tiles. Even if it flows in, the rainwater should not flow back to the bottom. Further, when a plurality of flat roof tiles are stacked and packaged by providing a notch 17 in which a predetermined amount of the same portion is cut out on the back side portion near the bottom portion, the flat roof tiles do not cause unnatural interference. To.
[Selection] Figure 1

Description

  The present invention relates to a flat roof with a flat exposed surface that receives rain, and particularly to a disaster-resistant flat roof that has a structure that is not blown away even when exposed to storms.

  Conventionally, a disaster prevention type flat roof tile (hereinafter referred to as a flat roof tile) having a structure shown in FIG. 12 is known (Japanese Patent Laid-Open No. 2000-291208). That is, the flat tile 1 has a stepped bottom water return 2 at the bottom B that is higher than the exposed surface E that receives rain, and another flat tile to be described later is locked at the approximate center of the water return portion 2. The locking projection 3 is provided. Further, in the flat roof tile 1, a step-like insertion portion C slightly lower than the exposed surface E is formed on one side portion, and in the flat roof tile 1, the other side portion has a lower portion than the exposed surface E. A slightly high stepped crosspiece D is formed. Moreover, the end surface of the head A which contacts the back side of the buttocks B in the flat roof 1 slightly hangs down.

When a plurality of flat tiles 1 having such a structure are spread on a roof base plate of an inclined roof of a building, first, in the same step, another flat tile (not shown) is inserted into the insertion portion C of the flat tile 1. However, the second flat roof tile is placed adjacent to the flat roof tile 1. Further, another flat roof tiled in the same manner adjacent to the flat roof tile 1 at an upper oblique position, that is, the third flat roof tile, is a locked portion formed in the insertion portion (the flat roof tile of FIG. 12). In the state in which the element corresponding to the locked portion indicated by reference numeral 4 in the portion near the head A of the insertion portion C of 1 is locked to the locking projection 3 of the flat roof tile 1, On the other hand, the so-called zigzag is sown.
JP 2000-291208 A

  The flat roof tile 1 having the above structure exhibits an excellent effect that the flat roof tiles in the oblique direction are engaged with each other even when exposed to storms, so that it is not blown away, but there is still room for improvement in the following points. is there.

  First, when the flat roof tile 1 is laid over the base plate by forming the width W of the bottom part water return 2 narrower and relatively increasing the length of the exposed surface E, a roof is formed. It is to increase the length of the exposed surface E where the flat roof tile 1 per sheet receives rain, that is, the working length L, and thereby reduce the number of installation steps of the flat roof tiled on the inclined surface. It is to pack a plurality of flat tiles in a compact manner by reducing the stacking width when stacking and stacking a plurality of sheets, to increase transport efficiency, and to prevent cracking and chipping during transport.

  Therefore, when the present inventor tried the above improvement, he found the fact that it was necessary to suppress the backflow of rainwater near the bottom of the insertion portion C from the flat roof tile according to the prior art, and completed the present invention. . Accordingly, an object of the present invention is to provide a flat roof tile that does not cause a backflow of rainwater in the insertion portion even if the working length of the flat roof tile is increased while reducing resistance to storms (first problem). Furthermore, when stacking and packing multiple flat tiles that can solve the first problem, the shape of the flat tiles has been improved so that the flat tile stacks are not bulky due to unnatural interference between the flat tiles. There is to do (second problem).

  In order to solve the first problem, the present invention provides a step-like insertion portion lower than the exposed surface on the side of the flat roof having a stepped water return portion at the bottom portion which is higher than the exposed surface receiving rain. While forming, the means of providing a level | step difference higher than the other site | part of this insertion part in the part near the bottom part of the insertion part is employ | adopted. By adopting this means, the width of the bottom water return relative to the working length of the flat tile is relatively shorter than that of the conventional flat tile, so that it is adjacent to the flat tile in the same stage. Even if a large amount of rainwater flows into the insertion portion from between the flat tile to be sown, that is, the second flat tile, and the rainwater tries to flow backward to the bottom side of the insertion portion, Backflow is prevented (action).

  Furthermore, in order to solve the second problem, the present invention provides a step-like insertion portion lower than the exposed surface on the side of the flat roof having a stepped water return portion higher than the exposed surface that receives rain at the bottom. Forming a step difference higher than the other surface side portion of the insertion portion, and further cutting away a predetermined amount of the rear side portion closer to the bottom portion. The method of forming a notch in the same part is adopted. By adopting this means, when a plurality of flat roof tiles according to the present invention are stacked one above the other, the bottom of the flat roof stacked in the lower part is formed in the notch portion formed on the back side near the bottom. Part of the water return enters (action).

  The flat tile according to the present invention not only exhibits more effective disaster prevention performance because it has less resistance to storms, but also has increased the working length of the flat tile relative to the width of the bottom water return, Not only does the effective area increase, but the number of steps to be constructed with respect to the flow direction of the roof surface decreases, so that the construction efficiency is improved and the material cost and construction cost are reduced. Even if a lot of rainwater flows into the former insertion part from the gap formed between the flat roof tile and other flat roofs adjacent to it, the rainwater will not leak to the bottom side. In addition to exhibiting the effect, when packing and transporting multiple flat roof tiles, multiple flat roof tiles do not cause unnatural interference without forming useless space above and below the flat roof tiles. Can be packed in a compact manner, thus improving transport efficiency and preventing cracks and chips during transportation.

  Next, a most preferred embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 6, in the flat roof tile 1 according to the present invention, the exposed surface E that receives the rain has a substantially regular rectangular shape and has a stepped bottom water return 2 that is higher than the exposed surface E. In the bottom portion B, and one side portion of the flat roof tile 1 is a step-like insertion portion C lower than the exposed surface E. And the end surface of the head A which hits the back side of the butt B becomes a strip-like hanging wall 6, which is in contact with the exposed surface of another flat roof tiled adjacent to the lower part of the slab B, Prevents rainwater from entering. Further, the upper surface of the head A is wider than the thickness of the belt-like drooping wall 6, and the head upper face notch 6 a cut out at a predetermined depth accommodates the belt-like drooping wall 6 when a plurality of sheets are stacked one above the other. This makes it possible to reduce the overlap width and pack a plurality of flat roof tiles in a compact manner.

  The bottom water return 2 can be fitted with a locking piece 3 similar to the prior art and a locking piece 8 for locking the flat roof tile 1 to a pier 7 arranged and fixed on the base plate when the roof is installed. A nail hole 10 to be driven in to fix the flat roof tile 1 to the pier 7 is provided, and a flat band shape is formed as a whole except for these elements.

  In the present invention, the working length L of the exposed surface E of the flat roof tile 1 is made larger than that of a known flat roof tile so that the number of flat roof tiles placed on the roof is reduced. The normal working length of a flat roof tile is 300 to 305 mm, which is preferably about 10% longer than 280 mm, whereas the working length L is 280 mm in the F-size of JIS A 5208.

  Next, an outer water return 11 of a ridge extends along the outer edge portion from the butt portion B to the head A at the outer edge portion having a bowl shape in the insertion portion C. However, the outer water return 11 is slightly bent toward the inner side of the flat roof tile 1 on the head A side so that the locked portion 4 is formed in the insertion portion C as in the prior art. In addition, rainwater is prevented from entering the locked portion 4. Further, in the insertion part C, the inner water return 12 of the ridge is formed in parallel to the outer water return 11 at a predetermined interval, and the rainwater that has entered the insertion part C is double returned and The outside of the tile 1 is prevented from leaking.

  Further, in the insertion part C, a step 13 higher than the other part of the insertion part C, that is, the head side part C2, is formed in the bottom part C1 near the bottom part B, and at least the head The rainwater that has flowed down to the part side portion C2 is prevented from flowing backward. The inner and outer water return 11, 12 also forms a step in the middle of the two parts C1, C2.

  Next, as shown in FIG. 7 and FIG. 8, four ribs 14 of ridges are formed on the back surface of the main portion M of the flat roof tile 1 constituting the exposed surface E from the butt portion B at a predetermined interval. The main part M is reinforced by extending over the head A. Further, the crosspiece D of the flat roof tile 1 has a thickness d2 which is thinner than the thickness d1 of the main part M. However, since the rib D is also present in the crosspiece D, physical reinforcement to the crosspiece D is performed. It has become so.

  Further, a locking piece 8 having a V-shaped front surface is formed on the back surface of the flat roof tile 1 on the back surface side of the bottom water return 2 (see FIG. 4). As shown in FIG. 9, when a flat roof tile 1 is installed, a crosspiece 7 is arranged and fixed at a predetermined interval on a base plate 16 as a base material constituting the roof, and the locking piece 8 is engaged with the crosspiece 7. If stopped, the flat roof tile 1 can be placed on the base plate 16.

  Further, as shown in FIG. 1, FIG. 5, FIG. 6, FIG. 7, and FIG. 10, when a plurality of flat roof tiles 1 are stacked up and down as shown in FIG. 10, a part of the bottom water return of the flat roof tiles stacked in the lower part is notched as shown in FIG. 17, the flat roof tiles 1 do not cause unnatural interference in the bottom portion B, and a useless space is not formed between them.

  The flat roof tile 1 according to the present invention having the structure described in detail above exhibits the following actions and effects. As shown in FIGS. 2 and 4, first, the locking piece 8 of the flat roof tile 1 is locked to the crosspiece 7 on the base plate, and a nail (not shown) is inserted into the nail hole 10 to attach the flat roof tile 1 to the crosspiece 7. Secure to. Next, the crosspiece D of the second flat roof tile 21 having the same shape and structure as the flat roof tile 1 is overlaid on the insertion section C of the flat roof tile 1 and the locking piece 8 is locked to the crosspiece 7 and The two flat tiles 21 are fixed to the pier 7. In the same way, the same level of flat roof tiles will be installed.

  Next, the third flat roof tile 31 having the same shape and structure as the flat roof tile 1 is locked to the crosspiece 7 fixed on the upper stage of the flat roof tile thus wound, and The stopper 4 is inserted into the locking projection 3 of the second flat roof tile 21 and locked. Then, the third flat roof tile 31 is fixed to the pier 7 like the second flat roof tile 21. Thereafter, in the same manner, a flat tile adjacent to the side of the third flat tile 31 is installed, and the flat roof is fixed to the upper berth so that the roof of the building is covered with the flat tile. Ask.

  Since the working length L of the flat tile 1, the second flat tile 21, the third flat tile 31 and the like is larger than that of the conventional flat tile in the roof formed in this way, the working length L is increased. When the total amount reaches the working length L of one flat roof tile 1, it is possible to lay a flat roof tile having a number of steps lower than that of a conventional flat roof tile. As a result, the flat tile according to the present invention exhibits the effect of further reducing the construction cost of the roof.

  Further, in the flat roof tile 1 according to the present invention, when the top surface notch 6a, which is wider than the thickness of the belt-like hanging wall 6 on the top surface of the head A and is cut out at a predetermined depth, is stacked in a stacked manner in a plurality of layers. By storing the belt-like hanging wall 6 in a small space, the stacking width can be reduced and a plurality of flat roof tiles can be packed compactly, so that transportation efficiency can be improved and damage such as cracks and chips during transportation can be prevented. I can do it.

  Furthermore, in the flat roof tile 1 according to the present invention, there is no crosspiece D or the like that protrudes upward from the exposed surface E, so that the amount of rainwater entering the gap where the main portions M of the adjacent flat roof tiles 1 abut each other is suppressed. The water effect is reduced, and rainwater can easily flow from the gap through the insertion portion C. However, since the bottom portion side portion C1 of the insertion portion C is higher than the head side portion C2, there is a step 13; Is prevented from flowing backward to the bottom B side of the flat roof tile 1.

  Since the strip-shaped hanging wall 6 is present on the head A of the flat roof tile 1 according to the present invention, the hanging wall 6 is substantially completely shielded from the flat strip-shaped bottom portion water return 2 of the flat roof tiled in the lower stage. The rainwater is prevented from entering the bottom water return 2 side.

  Since the predetermined notch 17 is formed in the back side part of the insertion part C of the flat roof tile 1 according to the present invention, even if unnatural interference occurs between the flat roof tiles 1 by overlapping a plurality of flat roof tiles 1. Since the notch 17 absorbs the interference, a plurality of flat roof tiles 1 can be packed in a compact manner, so that the transportation efficiency is improved and breakage such as cracks and chips can be prevented.

  The present invention can be implemented by changing a part of the above-described embodiment as long as the fundamental technical idea is followed and the effect of the invention is not significantly impaired. For example, the relative ratio between the working length L of the flat roof tile according to the present invention and the width W of the bottom water return 2 can be arbitrarily determined by design, and the flat roof tile can be used as a roof tile roof tile. it can. In this aspect, one flat roof tile can be divided in half at an angle of 45 degrees, and the top surface notch 6A for laying them under the roof tile can be formed into an arc surface or a slope shape.

  The flat tile according to the present invention is a disaster prevention tile of any building in either Japanese or Western, especially in the construction field where the working length of the exposed surface that receives rain is made larger than that of the flat tile according to the prior art, or the roof is installed. It can be widely used in the construction field where new designs are to be applied.

It is a perspective view of the flat roof tile concerning the present invention. It is a fragmentary perspective view which shows the state which installed the flat roof. It is a front view of the flat roof tile. It is also a plan view. It is a left side view. It is a right view. It is a rear view. It is sectional drawing of the XX direction of FIG. It is a partial side view which shows the state which installed the said flat roof tile It is a top view which shows the state which piled up the several flat tile. It is a side view similarly. It is a perspective view of the flat roof tile concerning a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 (Disaster prevention type) Flat tile 2 Bottom part water return 3 Locking protrusion 4 Locked part 5 Cross part water return 6 Drooping wall 6a Head upper surface notch part 7 Crosspiece 8 Locking piece 9 Insertion recessed part 10 Nail hole 11 Outside water Return 12 Inside water return 13 Step 14 Rib 15 Rib 16 Base plate 17 Notch 21 Second flat roof 31 Third flat roof A Head B Bottom section C Insert section C1 Bottom section section C2 Head section section D Side section E Exposed surface L Working length M Main part S Width W Width d1 Thickness d2 Thickness

Claims (3)

  In the flat roof tile (1) having a stepped bottom water return portion (2) higher than the exposed surface (E) receiving rain at the bottom portion (B), a stepped insertion lower than the exposed surface is provided on the side portion thereof. A flat roof tile characterized by forming a part (C) and providing a step (13) higher than the other part (C2) of the insertion part at the bottom part (C1) of the insertion part.   In the flat roof tile (1) having a stepped bottom water return portion (2) higher than the exposed surface (E) receiving rain at the bottom portion (B), a stepped insertion lower than the exposed surface is provided on the side portion thereof. Forming a portion (C), and providing a step (13) higher than the other portion (C2) of the insertion portion on the bottom portion (C1) of the insertion portion; A flat roof tile provided with a notch (17) in which a predetermined amount of the same part is notched.   The top surface of the flat roof tile (1) is provided with a top surface notch portion (6a) that is wider than the thickness of the headband-like hanging wall (6) and is cut out at a predetermined depth. The flat roof tile according to claim 1 or claim 2.