JPH0721853U - Flat roof material - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the risk of stepping. [Structure] A flat roof material 1 having a shape in which the left side portion and the right side portion of the upper side portion are left down 2 and right down 3, respectively, and the flat roof material of each row is arranged in the left-right direction by abutting the left and right side surfaces thereof. Then, the flat roof material of the upper row, the lower part of the flat roof material of the lower row is covered, and the flat roof material of the lower row is shifted in the left-right direction. Projected portions 4 are formed on the lower left portion 2 and the lower right portion 3 of the section, respectively, which overlap the flat roof material of the row immediately above.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flat roof material.

[0002]

[Prior art]

 As shown in FIG. 5, the flat roof material 1 is a pentagonal or piece-shaped cement plate obtained by obliquely cutting the left half and the right half of the rectangular upper portion, respectively.

When that flat roofing material is to be roofed, flat roofing materials 11, 12, and 13 are arranged in a row in the left-right direction on the roof base plate as shown in FIG. The flat roof materials 21, 22 in the upper row are covered with the lower parts thereof on the flat roof materials 11, 12, 13 in the lower row, and the flat roof materials 11, 12, 13 in the lower row Shifted by a half width in the left-right direction and arranged in the same manner as in the lower row, and the flat roof members 31, 32, 33 in the upper row are also arranged in the same manner.

The pentagonal flat roofing material obtained by obliquely cutting the left half and the right half of the upper side of the rectangle saves material and is lighter than the rectangular flat roofing material.

[0005]

[Problems to be solved by the device]

 However, when the above pentagonal flat roofing material is roofed, as shown in FIG. 6, the inclined upper side surfaces on the right and left sides of the flat roofing materials 11 and 12 in the first row and the flat roofing material in the third row, as shown in FIG. As shown in FIGS. 6 and 7, the inverted triangular portion 5 surrounded by the lower surfaces of the members 31 and 32 has only one flat roof material 21 in the second row, and other flat roof materials are overlapped. However, the lower side of the flat roof material 21 in the second row is a void. Further, the non-overlapping portion 5 of the inverted triangle in which the flat roof members do not overlap each other is usually large in width and height and longer than the length and width of a person's foot, and the apex angle of the lower end is an obtuse angle so that the area is large.

Therefore, when a person climbing on the roof steps on the non-overlapping portion 5, the flat roof member 21 is likely to be cracked.

An object of the present invention is to solve the above conventional problems.

[0008]

[Means for Solving the Problems]

 The present invention is a flat roof material having a shape in which the left side portion and the right side portion of the upper side portion are respectively lowered to the left and to the right, and the flat sheet roof materials of each row are arranged in the left-right direction by abutting the left and right side surfaces thereof. In the flat roof roofing material that covers the lower part of the flat roofing material of the upper row with the upper part of the flat roofing material of the lower row, and shifts it in the left-right direction from the flat roofing material of the lower row, The flat roof material is characterized in that the flat roof material is formed on the lower left portion and the lower right portion, respectively.

[0009]

[Action]

 In the present invention, when the flat roofing material is roofed, the protrusions formed on the lower left portion and the lower right portion of the upper portion of the flat roofing material overlap the flat roofing material in the row immediately above, so that the flat roofing materials are The non-polymerized part that does not overlap is narrow.

[0010]

[Effect of device]

 In the present invention, when a flat roofing material is roofed, the non-overlapping portion where the flat roofing materials do not overlap with each other is narrow, so that the risk of trampling is low.

[0011]

【Example】

 <First Example (see FIGS. 1 and 2)> The flat roof material 1 of this example was obtained by papermaking and dehydrating a slurry of cement and wood fibers, punching it into a desired shape, press-molding it, and curing it. This is a fiber-mixed cement board, and as shown in FIG. 1, about 1/3 on the left side and about 1/3 on the right side of the upper part of the flat plate are formed in the downward slope 2 and the downward slope 3 respectively.

As shown in FIG. 1, the lower left portion 2 and the lower right portion 3 of the upper portion form a projecting portion 4 in which the lower half is formed in a convex quadrant shape, and the upper half is formed in a concave shape. It has a quadrant shape. The lower surface has a wavy shape as shown in FIG. The central parts of the left and right side surfaces and the upper side surface are straight.

The flat roof material 1 has a width of about 60 cm, a height of about 45 cm, and a thickness of about 6 mm.

When the flat roof material 1 is to be roofed, flat roof tile materials 11, 12, 13 are arranged in a row in the left-right direction on the roof base plate as shown in FIG. Then, the flat roof materials 21, 22 in the upper row are covered with the lower parts thereof on the flat roof materials 11, 12, 13 in the lower row, and the flat roof materials 11, 12, 13 in the lower row. And the left and right sides are shifted by a half width and arranged in the same manner as the lower row, and the flat roof members 31, 32, 33 in the upper row are also arranged in the same manner.

Then, the portion 5 surrounded by the lower left surface and the lower right surface of the upper portion of the flat roof materials 11 and 12 of the first row and the corrugated lower side surfaces of the flat roof materials 31 and 32 of the third row, As shown in FIG. 2, there is only one flat roofing material 21 in the second row, and the other flat roofing material is a non-overlapping portion that does not overlap. Since the protrusions 4 on the lower right side and the protrusions 4 on the lower left side of the upper side of the flat roofing materials 11 and 12 of the row are superposed on the flat roofing material 21 of the second row, the non-overlapping portion 5 is Due to the presence of the protruding portion 4, the width is narrowed and the area is narrowed.

It should be noted that the alternate long and short dash line in FIG. 2 indicates the left and right inclined upper side surfaces of the flat roof material of the first row when the conventional pentagonal flat roof material is roofed.

When the flat roofing material of this example is thatched, the non-overlapping portion 5 where the flat roofing materials do not overlap each other is narrow, and therefore, when a person climbing on the roof steps on the non-overlapping portion 5, the foot is in the second row. The flat roofing material 21 of the second row and the flat roofing materials 21 and 12 of the first row or the flat roofing materials 31 and 32 of the third row, that is, a plurality of flat plates Supported by roofing materials. Therefore, the flat roof material is less likely to crack.

As shown in FIG. 5, the conventional pentagonal-shaped or piece-shaped flat roof material has a pointed portion in the center of the upper side, and the tipped portion is easily broken. As shown in FIG. 1, the center of the upper part is flat and hard to crack.

<Second Example (see FIGS. 3 and 4)> In the flat roof material of this example, as shown in FIG. 3, the lower side surface is formed in a straight line shape instead of a wavy shape. Other points are the same as in the previous example. In FIGS. 3 and 4, the same parts as those in the previous example are designated by the same reference numerals.

[Brief description of drawings]

FIG. 1 is a perspective view of a flat roof material of a first embodiment of the present invention.

FIG. 2 is a plan view of the flat roof material of the same example with thatched roof.

FIG. 3 is a perspective view of a flat roof material of a second embodiment.

FIG. 4 is a plan view of the flat roof material of the same example with thatched roof.

FIG. 5 is a perspective view of a conventional flat roof material.

FIG. 6 is a plan view showing a state where a conventional flat roof material is roofed.

7 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Flat roof material 11, 12, 13 Flat roof material for the first row 21, 22 Second flat roof material for the second row 31, 32, 33 Flat roof material for the third row 2 Lower left portion 3 Right lower portion 4 Protruding portion 5 Non-polymerized part

Claims (1)

[Scope of utility model registration request] 1. A flat roof material having a shape in which a left side portion and a right side portion of an upper side portion are respectively lowered to the left and to the right, and the flat sheet roof materials of each row are arranged in the left-right direction by abutting the left and right side surfaces thereof. , The top row of flat roof roofing materials, the lower part of which covers the top of the flat row roofing material of the lower row, and the left and right sides of the flat roofing material of the bottom row that are roofed The flat roof material is characterized in that the left roof portion and the right lower portion are each formed with a protruding portion that overlaps with the flat roof material in the row immediately above.