JPH10196050A - Corrugated roof tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrugated roof tile having appearance rich in three- dimensional feeling, and ensuring inexpensiveness. SOLUTION: A plurality of projected corrugation parts 1 having a crest formed to have both upper and lower surfaces curved for upward projection ranging over an area from a ridge side end 3 to another ridge side end 4 are arranged laterally, and at least one of troughs 2 between the adjacent projected corrugation parts 1 is formed as the first trough 2a having upper and lower surfaces made flat. Other than the first troughs 2a among the troughs 2 are formed as the second trough 2b having the upper and lower surfaces curved for continuity to the adjacent projection corrugation parts 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a plurality of ridges which are formed from a ridge-side edge to an eave-side edge, and a plurality of ridges are formed in a lateral direction. It relates to a wavy tile.

[0002]

2. Description of the Related Art Conventionally, a corrugated tile of this type has been manufactured by embossing a soft sheet-shaped cement flat plate while replenishing water on both upper and lower surfaces with a press machine. As shown in FIG. 7, in the conventional wavy tile, a plurality of raised ridges B are formed separately from each other on a flat surface A before the concavo-convex molding. The boundary portion C between the portion B and the flat surface A is bent and clearly formed. This conventional wavy tile sheet has, for example, the same configuration as the above-described wavy wave portion B than the continuous wavy shape in which the wavy wave portions B are continuously formed alternately and continuously on the upper and lower surfaces. Has a large curvature, and the boundary portion C is clearly formed.

[0003]

However, in the above-mentioned conventional wavy tiles, cracks are likely to be generated at the boundary in the manufacturing process such as the above-mentioned uneven molding, which lowers the product yield and increases the manufacturing cost. Was a factor. An object of the present invention is to solve the above-mentioned drawbacks and to provide an inexpensive wavy tile plate that does not impair the appearance rich in three-dimensional appearance.

[0004]

A first feature of the wavy tile according to the present invention for achieving this object is as described in claim 1 of the claims, in which the upper and lower surfaces are upward. A plurality of convex ridges are formed in the lateral direction so as to form a curved mountain portion from the ridge side edge to the eaves side edge, and among the valleys between the adjacent convex ridges. At least one of the upper and lower surfaces is formed as a flat first valley portion, and the upper and lower surfaces are curved so that portions other than the first valley portion of the valley portion are continuous with the adjacent convex ridge portion. In the second valley.

A second feature of the wavy tile according to the present invention is, in addition to the first feature, the first valley and the second valley, in addition to the first feature. The point is that the valleys are provided alternately.

A third feature of the corrugated tile according to the present invention is that, in addition to the first or second feature, the second valley portion is formed as described in claim 3 of the claims. The first valley is formed so as not to protrude below the lower flat surface.

A fourth feature of the corrugated tile according to the present invention is that, in addition to the third feature, a nail hole is formed in the first valley, as described in claim 4 of the claims. The point is that it is provided.

The fifth feature of the wavy tile according to the present invention is, in addition to the first, second, third or fourth feature, as described in claim 5 of the claims. The eave tip of the first valley is formed so as to protrude toward the eave tip toward the center of the first valley.

The operation will be described below. According to the first characteristic configuration of the present invention, the boundary between the convex ridge and the second valley in the boundary between the convex ridge and the valley that has been bent is the By performing the curved surface treatment so that the convex ridge portion and the second valley portion are continuous, the frequency of occurrence of cracks at the boundary portion in a manufacturing process such as uneven molding is reduced. Also,
The boundary between the ridge portion and the first valley portion remains bent as before, and the curvature of the ridge portion adjacent to the first valley portion is large, so that a three-dimensional appearance is obtained. There is no complete loss. As a result, a reduction in the product yield due to the occurrence of cracks at the boundary is suppressed, and it is possible to provide an inexpensive corrugated tile without significantly impairing the conventional three-dimensional appearance.

Further, according to a second characteristic configuration, the first feature is provided.
Since the valleys and the second valleys are alternately arranged, the boundary between the protruding wavy portion and the first valley where cracks easily occur is uniformly distributed over the entire surface of the wavy tile plate, and the cracks are generated. Since the boundary portion that is easy to concentrate is not concentrated on a part of the region, the reduction in the product yield can be further suppressed. Also,
Even when the lower surface of the first valley and the lower surface of the second valley are not on the same plane, and only one lower surface is in contact with the ground plane, the contact points with the ground plane are uniformly distributed to prevent foot cracks and the like. The strength can be maintained.

Further, according to the third characteristic configuration, the first valley having a flat surface is always in contact with the field plate, and a load from above is widely dispersed on the lower surface of the first valley to apply the load to the field plate. Since it can be transmitted, the strength against foot cracks and the like can be maintained high.

Further, according to the fourth characteristic configuration, since the nail hole is provided in the first valley having a flat surface, the nailing operation is easy because the peripheral portion of the nail hole is not high. There is less danger of breaking the wavy tiles by mistake. Especially,
When used in combination with the second characteristic configuration, the nailing portions are evenly distributed over the entire surface of the corrugated tile, and the strength of attachment to the ground board can be increased.

Further, according to the fifth characteristic structure, when the corrugated tiles of the present invention are laid in a pile from the eaves side to the ridge side, the first valley portion is actually formed as a flat surface. Despite the existence, the cross section of the eaves tip of the corrugated tiles of each step laid in a pile looks like a continuous wavy shape, like the second valley where the first valley is bent downward. It has a three-dimensional appearance.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a perspective view showing an embodiment of a corrugated tile according to the present invention, and an elevation viewed from the side of the eaves in the direction of the eaves. The corrugated tile is a plate-like body including cement, reinforcing fiber, special mixture, and water, and a planar shape viewed from above is cut in advance into a pentagon in which the ridge side edge 3 has two sides, Further, the plate-like body is manufactured by forming irregularities while replenishing water on both upper and lower surfaces of the plate-like body with a press machine. 1 and 2
As shown in FIG. 1, a convex ridge portion 1 is formed in which a mountain portion whose upper and lower surfaces are bent upward from the ridge-side edge portion 3 to the eave-side edge portion 4 while the thickness of the corrugated tile is kept constant. Are arranged side by side in four rows. Further, three valleys 2 are formed between the four ridges 1 and the valley 2 at the center is a first valley 2a which is flat on both upper and lower surfaces. Is a second valley portion 2b having a curved surface on both upper and lower surfaces so as to be continuous with the adjacent ridge wave portion 1 respectively.

The relative positions of the wavy tiles adjacent to each other at the time of laying are closer to the ridge than the center of the eaves side edge 4 and the center of the left and right side edges 7 of the wavy tiles. The alignment marks 4a and 7a that determine the relationship are provided respectively. Further, the lowermost lower surface 2f of the lower surface of the second valley 2b, the lower flat surface 2c of the first valley 2a, and the lower flat surface of the flat portion 7b along the left and right side edges 7 are on the same plane. The lowermost lower surface 2f is formed so as not to protrude below the lower flat surface 2c.

Further, the ridge side overlapping portion 6 of the first valley portion 2a
A nail hole 5 is provided on the ridge side of the alignment mark 7a of the flat portion 7b. The nail holes 5 and 8 are nail holes used for fixing the individual wavy tiles to the field board.

As shown in FIG. 3, in the two wavy tiles adjacent to each other on the right and left, the right end face of the left and right side edges 7 of the left wavy tile and the right wavy tile The right and left half surfaces of the upper side 6a of the ridge-side overlapping portion 6a of the lower wavy tiles are abutted with the left end faces of the left and right side edge portions 7 of the two wavy tiles vertically adjacent to each other. And the upper or lower corrugated tiles are overlaid so that the left or right half of the lower surface 9 of the eaves side overlapping portion faces each other. The two alignment marks 7a, 7a of the upper corrugated tile are respectively provided at the tips of the ridge side edges 3 of the two left and right corrugated tiles laid below, and The wavy tiles are positioned so that the alignment mark 4a coincides with the butted portion 10 of the two right and left wavy tiles laid below.

FIG. 4 is a plan view of the overlapping state of the set of ridges 1 in FIG. 3 as viewed from above. FIG. 5 shows an overlapping state of the set of ridges 1 in FIG.
It is sectional drawing in A section. As shown in FIG. 5, the convex ridge portion 1 has a substantially circular cross section in the transverse direction, and the first valley portion 2
An end on the side in contact with a forms a bent boundary portion 12, and an end on the opposite side is continuous with the second valley 2b. The main radii of curvature r ₁ , r ₃ of the upper surface of the convex wavy portion 1 are longer than the main radii of curvature r ₂ , r _{4 of the} lower surface by the thickness t, and the respective radii of curvature r ₁ , r ₂ , r _{3 are provided.} , R ₄ are in the vertical direction,
From the eaves side edge part 4 to the ridge side edge part 3, gradually shorter,
And it is molded so that r ₁ > r ₂ > r ₃ > r ₄ . Further, as shown in FIG. 4 and FIG. 5, the top 1 a and the valley 2 of the lower convex ridge portion 1 abut against the lower surface 9 of the eave-side overlapping portion 9 of the upper corrugated tile. Between the eave-side overlapping portion lower surface 9 and the ridge-side overlapping portion upper surface 6a and between the top portion 1a and the valley portion 2 so as to form a gap 11 The radius of curvature of each part is set.

According to the specific configuration shown in FIG. 5, in the wavy tiles vertically adjacent to each other, the load applied from above to the upper surface of the top portion 1a of the protruding ridge portion 1 of the upper wavy tile is affected by the upper wavy shape. The ridge wave portion 1 of the tile plate and the ridge wave portion 1 of the lower wavy tile plate are dispersed and act in the left-right direction, and the load finally acts on the field plate at the valley portion 2. To do
The strength against stepping cracks is increased, and the gaps 1 are formed on the left and right sides of the top 1a of the convex wavy portion 1 of the lower wavy tile.
Since there is 1, there is a margin for the deviation in the left-right direction, and the position can be easily adjusted when the wavy tiles adjacent to the left and right are abutted at the time of roofing. As a result, workability,
Further, it is possible to provide a corrugated tile having excellent load resistance. It is sufficient that the gap 11 is dimensionally acceptable if a dimensional error occurring between products can be tolerated. The gap 11 does not reduce waterproofness or wind resistance. Unnecessary lifting of the wavy tiles can be prevented, and water resistance and wind resistance can be improved.

Hereinafter, another embodiment will be described. As shown in FIG. 6, it is also preferable that the eave tip 2d of the first valley 2a is formed so as to protrude in an arc shape toward the eave toward the center 2e of the first valley 2a. It is. In this case, the eave tip 7c of the flat portion 7b along the left and right side edges 7 is formed in a semicircular arc shape that projects outward toward the eave tip. The protruding shape of the eave tip 2d approximates a downwardly protruding shape of the second valley 2b,
It is also preferable that the protruding shape of the eaves tip 7c of the flat portion 7b is set to the left and right halves.

The planar shape of the corrugated tile is not limited to a pentagon, but may be a rectangle.
Furthermore, the number of the protruding ridges 1 and the cross-sectional shape in the lateral direction are not limited to the present embodiment.

The first valley portion 2a of the valley portion 2
The arrangement and the number of the second valleys 2b are arbitrary, but at the time of laying, the first valleys 2a and the second valleys 2b of the upper and lower wavy tiles are vertically overlapped with each other. Need to be placed. Furthermore, the number of nail holes 5, 8 in each of the first valleys 2a and the flat portions 7b is not limited to the present embodiment.

[0024]

As described above, according to the present invention,
Cracks can be suppressed from being generated at both ends of the ridged wave portion in the manufacturing process such as the above-mentioned irregularity molding without impairing the three-dimensional appearance of the conventional wavy tiles, thereby lowering the product yield and reducing the manufacturing cost. It is possible to provide a corrugated tile having an excellent soar suppressing effect.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a perspective view of a corrugated tile according to an embodiment of the present invention.

FIG. 2 is an elevation view of a corrugated tile according to an embodiment of the present invention.

FIG. 3 is a plan view showing a laid state of a wavy tile according to an embodiment of the present invention.

FIG. 4 is a plan view of a main part in a laid state of a corrugated tile according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part in a laid state of a corrugated tile according to an embodiment of the present invention.

FIG. 6 is a perspective view of a corrugated tile according to another embodiment of the present invention.

FIG. 7 is a perspective view of a conventional wavy tile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ridge wave part 2 Trough part 2a 1st trough part 2b 2nd trough part 2c Lower flat surface 2d Eave tip 2e Central part 3 Building side edge 4 House side edge 5 Nail hole

Claims (5)

[Claims] 1. A plurality of ridges (1) formed from a ridge-side edge (3) to an eave-side edge (4), and a plurality of convex ridges (1) are formed in a lateral direction. A valley (2a) having at least one of valleys (2) between adjacent ridges (1) adjacent to each other and having flat upper and lower surfaces.
And the second valley having both upper and lower surfaces curved so that portions other than the first valley portion (2a) of the valley portion (2) are continuous with the adjacent convex ridge portion (1). A wavy tile plate formed in the portion (2b). 2. The corrugated tile according to claim 1, wherein the first valleys (2a) and the second valleys (2b) are provided alternately. 3. The wavy roof tile according to claim 1, wherein the second valley (2b) is formed so as not to protrude below a lower flat surface (2c) of the first valley (2a). Board. 4. The corrugated tile according to claim 3, wherein a nail hole (5) is provided in the first valley (2a). 5. An eave tip (2) of said first valley (2a).
The wavy tile board according to claim 1, 2, 3 or 4, wherein d) is formed so as to protrude toward the eaves toward the center (2e) of the first valley (2a).