JP2003096985A - Roofing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roofing material which is formed of a metallic folded plate and for use in a transversely laid roof, wherein the roofing material is protected from application of a force to a fitting portion thereof in a direction that loosens the fitting portion at the time of snow accumulation, and is improved in wind-resisting strength. SOLUTION: The roofing material has a ridge-side fitting portion arranged on the side of a ridge, and an eaves-side fitting portion arranged on the side of eaves, and is formed of a metallic folded plate which is fitted to another roofing material to construct a transversely roofed roof. The ridge-side fitting portion has a recess opening in an eaves direction and the eaves-side fitting portion has a projection projecting in a ridge direction, whereby the projection of the second roofing material can be freely fitted into the recess of the first roofing material. Further, the projection has a rise portion which rises therefrom in a front direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal roofing material for a building structure, and more particularly to a roofing material for a thatched roof having a snowfall prevention function.

[0002]

2. Description of the Related Art Conventionally, in a roofing material for a thatched roof, which is formed by bending a metal plate, a rising portion is provided in the front direction so as to have a snowfall preventing function.

FIG. 8 is a sectional view of a roofing material having a snowfall preventing function disclosed in Japanese Utility Model Registration No. 3008868. The right direction in the figure is the ridge direction (upward direction), and the left direction is the eaves direction (downward direction). An upper edge contacted portion 1003 protruding in the front direction in a substantially S shape on the ridge side edge is connected to the upper edge contacted portion 1003, a central horizontal portion 1010 is connected to the central horizontal portion 1010, and a triangular shape is directed upward. The protruding portion 1002 protruding to the
The eaves side horizontal portion 1006 connected to the protrusion 1002 is connected to the eaves side horizontal portion 1006, and a substantially V-shaped lower edge contacted portion 1001 is formed at the eaves side edge.

Therefore, the roof can be roofed by fitting the lower edge contacted portion 1001 of the second roof material to the upper edge contacted portion 1003 of the first roof material installed on the eaves side. Further, the ridge side surface of the projecting portion 1002 prevents the snow from sliding, and the eave side surface of the projecting portion 1002 supports the sliding pressure of the snow. (Prior Art 1) FIG. 9 is a sectional view of a roofing material having a snowfall prevention function disclosed in Utility Model Registration No. 3020379. The right direction in the figure is the ridge direction (upward direction), and the left direction is the eaves direction (downward direction). An upper edge contacted portion 2004 that protrudes in the front direction in a substantially S shape on the ridge side is connected to the upper edge contacted portion 2004, and a central horizontal portion 2010 is connected to the central horizontal portion 2010 and protrudes in a triangular shape in the frontward direction. The protruding portion 2002 is connected to the protruding portion 2002, and the eaves-side horizontal portion 2
006 is connected to the eaves-side horizontal portion 2006, and substantially U-shaped lower edge contact portions 2001 are formed at the eaves-side edges.

Therefore, the roof can be roofed by fitting the upper edge contact portion 2004 of the first roof material installed on the eaves side to the lower edge contact portion 2001 of the second roof material. Further, the ridge side surface of the projecting portion 2002 prevents the snow from sliding and the falling snow is prevented, and the eave side surface of the projecting portion 2002 supports the sliding pressure of the snow. Further, an air layer is secured by separating the eaves side horizontal portion 2006 from the base surface. (Prior Art 2) FIG. 10 is a perspective view showing a part of a long roof plate for a lateral roof having a snowfall prevention function disclosed in Japanese Patent Laid-Open No. 2000-28630. The left direction in the figure is the ridge direction (upward direction), and the right direction is the eaves direction (downward direction). A reinforcing rising portion 3011 bent substantially vertically to the ridge side is connected to the reinforcing rising portion 3011, a horizontal end portion 3021 having a predetermined width is connected to the horizontal end portion 3021, and a U-shaped ridge side. Contacted part 300
2 is connected to the ridge-side contacted portion 3002 and the central horizontal portion 302
2 is connected to the central horizontal portion 3022, a trapezoidal snowfall prevention protrusion 3005 is connected to the snowfall prevention protrusion 3005, and the eaves side horizontal portion 3023 is connected to the eaves side edge portion of the eaves side horizontal portion 3023. E-shaped eaves side contact portions 3001 are formed respectively.

Therefore, the eaves-side contacted portion 3001 of the second roof material can be fitted to the ridge-side contacted portion 3002 of the first roofing material, and the roof can be roofed. In addition, the snowfall prevention protrusion 3005 stiffened by the fitted reinforcement rising portion 3011 exerts a snowfall prevention function. (Prior art 3)

[0007]

However, in the prior art, the projection 1002 for supporting the sliding pressure of snow,
The eaves-side horizontal portion 10 is provided on the eaves side (downward) of the 2002 or the snowfall preventing protrusion 3005 (hereinafter collectively referred to as a start-up portion).
Equipped with 06, 2006 or 3023, the eaves side horizontal part 1
Lower edge contact parts 1001, 2001 or eaves side contact part 3001 on the eaves side edge of 006, 2006 or 3023
(Hereinafter, it is generically referred to as the eaves-side fitting portion), there is the following problem.

FIG. 11 is a sectional view for explaining the state of the rising portion in the prior art. In FIG. 11, the left direction in the figure is the ridge direction (upward direction), and the right direction is the eaves direction (downward direction).
And the roof side is roofed by fitting the eaves side fitting part of the second roofing material 5000 into the ridge side fitting part of the first roofing material 4000 installed on the eaves side. The fitting portion is substantially S-shaped and has a horizontal end portion 4001 (side ab in the figure) installed at the ridge-side edge, and is connected to the horizontal end portion 4001 and inclined toward the eaves in the front direction. Bent inclined portion 4002 (side bc in the figure) and ridge-side horizontal portion 4003 connected to inclined portion 4002
(Side cd in the figure) and a ridge vertical part 4004 (the side de in the figure) which is continuous with the ridge-side horizontal portion 4003 and is bent backward.
And a concave portion 4005 (formed by side ef and side fg in the drawing) that is continuous with the ridge vertical portion 4004 and is bent in the ridge direction and the eaves direction.

On the other hand, the eaves side fitting portion is the central horizontal portion 50.
06 (side st in the drawing), a rising portion 5007 (formed by a side tu and a side uv in the drawing) connected to the central horizontal portion 5006, and an eaves-side horizontal portion 5008 connected to the rising portion 5007 ( In the figure, a side vx), an eaves side vertical portion 5009 (side xy in the figure) that is connected to the eaves side horizontal portion 5008 and is bent back, and a protrusion that is connected to the eaves side and is bent in a substantially ridge direction. 5010 (side yz in the drawing).

The protrusion 5010 is fitted in the recess 4005, in other words, the eaves-side horizontal portion 5008, the eaves-side vertical portion 5009, and the pocket portion formed by the protrusion 5010 (side vx and side in the drawing). xy and sides yz), and a protrusion formed by a ridge-side horizontal portion 4003, a ridge-vertical portion 4004, and a recess 4005 (in the figure, formed by a side cd, a side de, and a side ef). Is accommodated, and the protrusion 5010 is provided on the front surface (side ef in the drawing) of the recess 4005.
(The side yx in the figure) is in watertight contact.

Therefore, when the snow is about to slide in the eaves direction, the load of the snow acts on the rising portion 5007, and the rising portion 5007 pushes the force pushed in the horizontal direction (the eaves side) and the bending portion t. It will be knocked down by the eaves as a fulcrum. At this time, the eaves side horizontal portion 5008 generates a stress that is pushed out in the eaves direction, and a stress that causes a gap between the protrusion 5010 and the recess 4005 is generated.

Further, since the original plate constituting the roof plate has a small thickness, the bent part v is kept in a shape while the bent part v retains its shape.
The ridge-side portion of the eaves-side horizontal portion 5008 rotates about the fulcrum in the direction of sinking in the back direction, and as a reaction force of the rotation force, the stress in the opening direction of the tip (the position z in the figure) of the protrusion 5010 is generated. Occur.

Therefore, although the fitting portion does not come off, the fitting portion may slightly open to cause a waterproof problem. In this state, the snow on the roof surface melts,
If frozen again at the eaves, the risk of "leakage" will be higher than usual. Even when the string-like waterproof packing material is pushed into the fitting portion as in the prior art 3, the stress acting in the direction of reducing the effect of the waterproof packing material acts, so that the waterproof property may deteriorate. The problem that there is is not solved.

In addition, in the prior art 3, the startup unit 3
When 005 is stiffened by the reinforcing rising portion 3011, the strength against falling of the rising portion due to snow is improved, but the problem that stress is generated in the direction in which the waterproof property deteriorates is not solved. There is also a problem that the workability is worse than that of the conventional techniques 1 and 2. That is, the eaves-side fitting portion 3001 has a form suitable for sliding and fitting in the lateral direction, while the reinforcing start-up portion 3011 is configured vertically and the inside of the vertically-provided start-up portion 3005 is provided. Since it is a structure to be inserted into the
It becomes necessary to carry out the construction by hooking the tip of the eaves-side fitting portion 3001 and tilting the reinforcing rising portion 3011 forward, or by opening and fitting the rising portion 3005, which is a troublesome work. Although the strength of the rising portion 3005 against collapse is improved by the stiffening of the rising portion 3005, the plate thickness of the reinforcing rising portion 3011 is as thin as the roof material, and the direction of the stress generated in the fitting portion. Since it does not change, there is an improvement effect, but the risk of waterproofing is still included.

FIG. 12 is a cross-sectional view for schematically explaining the situation when a negative pressure is applied to the roof material in the prior art. In FIG. 12, the left direction in the figure is the eaves direction (downward direction),
The right direction is the ridge direction (upward direction), and the first roofing material 600 is from the eaves side toward the ridge direction (from left to right in the figure).
0, the second roofing material 7000, and the third roofing material 8000 are roofed.

The first roofing member 6000 is fixed to the base plate 9999 by the installation nail 6021 at the horizontal end portion 6001 provided at the edge on the ridge side.

The eaves side fitting portion 7030 of the second roofing material 7000 is the ridge side fitting portion 6020 of the first roofing material 6000.
7001 fitted on the ridge and provided on the ridge side edge
In, the nail is fixed to the base plate 9999 by the installation nail 7021.

The eaves side fitting portion 8030 of the third roofing material 8000 has the ridge side fitting portion 7020 of the second roofing material 7000.
Is fitted to.

Therefore, when the wind pressure acts on the second roof member 7000 with negative pressure, a load acts in a drum-shaped displacing direction with the ridge-side fitting portion 7020 and the eaves-side fitting portion 7030 as a fulcrum. (Indicated by an arrow in the figure). At this time,
The displacement amount increases as the rigidity of the roof material 7000 decreases, the distance between the fulcrums increases, and the rotation restraining force of the fulcrums weakens. In particular, since the rising portion 7005 is installed in the middle of these fulcrums and the plate thickness is thin, there is a fulcrum that is structurally free of displacement and rotation in the rising portion, and there is no rising portion. The amount of displacement tends to increase in comparison with the one. Therefore, there is a risk that the fitting portion may be loosened or deformed, and there is a problem that the rain is deteriorated or the roof is damaged.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a roofing material in which a force in a loosening direction does not act on fitting portions of the roofing materials.

[0021]

Means for Solving the Problems The roofing material of the present invention for solving such problems is as follows.

[1] For a thatched roof that has a ridge-side fitting portion arranged on the ridge side and an eaves-side fitting portion arranged on the eaves side, and is formed by mutually fitting metal folded plates Roofing material of
The ridge-side fitting portion has a concave portion that opens in the eaves direction, and the eaves-side fitting portion has a protrusion portion that protrudes in the ridge direction, and the protrusion portion of the second roof material is provided in the concave portion of the first roof material. The roofing material is characterized in that a rising portion is formed which is fittable and which rises from the protruding portion in the front direction.

[2] In the above [1], the eave-side surface of the rising portion is inclined substantially at right angles to the projecting portion or in the ridge direction.

[3] In the above [1] or [2], a ridge-side edge has a substantially U-shaped or V-shaped tip fitting portion, the ridge-side fitting portion, and the ridge-side fitting. Between the parts, there is a substantially S-shaped intermediate fitting portion, and the intermediate fitting portion of the first roof material can be freely fitted into the tip fitting portion of the second roof material. To do.

[4] In any one of [1] to [3], a stiffening plate is disposed between the ridge-side surface and the eaves-side surface of the rising portion. It is a feature.

[5] In the above [4], the plate-shaped body installed on the second roof material is abuttable on the eaves side of the ridge-side fitting portion of the first roof material. It is a feature.

[6] In any one of the above [1] to [5], a watertight rod-shaped body is arranged in the recess.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] (Roofing Material) FIG. 1 is a cross-sectional view in the width direction showing an embodiment of a roofing material according to the present invention, in which the left direction is the ridge direction (upper side). Direction) and the right direction is the eaves direction (downward direction). In the following description, the same parts as those in the embodiment shown in FIG. 1A are designated by the same reference numerals in the first digit, and part of the description is omitted.

In FIG. 1 (a), on the ridge side, a tip horizontal portion 1 (side AB in the figure) is provided at the edge of the ridge side, and is connected to the tip horizontal portion 1 and inclined toward the eaves in the front direction. The ridge-side sloping part 2 (side BC in the figure) that is bent, the ridge-side horizontal part 3 (side CD in the figure) that connects to the ridge-side sloping part 2, and the ridge-side horizontal part 3 that is bent in the back direction. And a ridge-side vertical portion 4 (side DE in the figure), and a concave portion 5 connected to the ridge-side vertical portion 4 and bent in the ridge direction and the eaves direction (formed by side EF and side FG in the figure) And a central horizontal portion 6 (side GT in the drawing) that is continuous with the concave portion 5 is formed.

On the eaves side, the eaves side inclined portion 7 (the side TU in the drawing) which is connected to the central horizontal portion 6 and is bent in the front direction, and the eaves side horizontal portion 8 connected to the eaves side inclined portion 8 (in the drawing). , Side UW) and the erecting part 9 which is connected to the eaves-side horizontal part 8 and projects in the front direction.
(In the figure, the ridge side surface 9W (side WX in the figure) and the eaves side surface 9Y
(Formed by the side XY in the figure) and the lower edge of the eave-side surface 9Y of the rising portion 9 to form a protrusion 10 (side YZ in the figure) bent in the ridge direction. Has been done.

Then, the protrusion 10 of the other roof material can be fitted into the recess 5 of the one roof material. In other words, the eaves side inclined part 7, the eaves side horizontal part 8, a part of the eaves side surface 9Y and the pocket portion formed by the projecting part 10 of the other roof material (in the figure, side TU, side UW, side XY). And a side YZ), a protrusion formed by the ridge-side inclined portion 2, the ridge-side horizontal portion 3, the ridge-side vertical portion 4, and the recess 5 of one roofing material (in the figure, side BC). The side CD, the side DE, and the side EF are formed) and can be stored.

In the stored state, the eaves-side horizontal portion 8 of the other roof material is provided on the surface of the ridge-side horizontal portion 3 of the one roof material.
When the back surface of the ridge abuts, the rigidity of the ridge-side horizontal portion 3 increases. However, the present invention is not limited to the corresponding contact, and there may be a gap between the front surface of the ridge-side horizontal portion 3 and the back surface of the eaves-side horizontal portion 8 of the other roof member.

Further, the present invention is not limited to the structure in which the ridge-side horizontal portion 3 and the eaves-side horizontal portion 8 are substantially parallel to the central horizontal portion 6, but may be inclined toward the ridge-side or the eaves-side,
Further, the ridge-side horizontal portion 3 and the eaves-side horizontal portion 8 may not be substantially parallel to each other.

Furthermore, the ridge-side inclined portion 2 and the ridge-side horizontal portion 3 or the eaves-side inclined portion 7 and the eaves-side horizontal portion 8 may be formed by continuous curves or straight lines, respectively.

The tip edge of the protruding portion 10 (position in the figure
Z) is not limited to being folded back into a substantially U shape, but may be a substantially S shape, a substantially L shape, or any other shape. Also,
The tip edge (the position A in the figure) of the tip end horizontal portion 1 is not limited to a flat single plate, but may be bent in a substantially L shape, or a substantially U shape or a V shape. You may turn back.

In FIG. 1A, the eave-side surface 9Y (side XY in the drawing) of the rising portion 9 is substantially perpendicular to the projecting portion 10 (side YZ in the drawing), and the ridge of the rising portion 9 is shown. Side surface 9W (side W in the figure)
X) is substantially parallel to the eave-side surface 9Y of the rising portion 9,
The ridge-side horizontal portion 3 and the eaves-side horizontal portion 8 are parallel to the central horizontal portion 6.

In FIG. 1B, the eave-side surface 19Y is inclined to the ridge side with respect to the projecting portion 20, and the ridge-side surface 19W is substantially vertical (substantially perpendicular to the central horizontal 16) and stands in a triangular shape. The thing which formed the raising part 19 is shown.

In FIG. 1 (c), the eaves side surface 29Y is inclined toward the ridge side (similar to the center horizontal 26) with respect to the protrusion 30, and the ridge side surface 29W is substantially the eaves side surface 29Y. The ridge-side horizontal portion 23 and the eaves-side horizontal portion 28 are parallel to each other and are inclined toward the ridge side.

In FIG. 1D, the eave-side surface 39Y is inclined to the ridge side with respect to the projecting portion 40 (the same as for the central horizontal 36), and the ridge-side surface 39W (side WX in the figure) is also included. Inclining further to the ridge side to form a triangular rising portion 39,
The ridge-side horizontal portion 33 and the eaves-side horizontal portion 38 are inclined toward the ridge side,
The ridge-side inclined portion 32 and the eaves-side inclined portion 37 have the same inclination, and the ridge-side inclined portion 32 and the ridge-side horizontal portion 33, and the eaves-side inclined portion 37 and the eaves-side horizontal portion 38 are continuous straight lines, respectively. It is formed by. (Construction Method) FIG. 2 is a cross-sectional view in the width direction showing a method of constructing an embodiment of the roofing material according to the present invention, in which the left direction is the ridge direction (upward direction) and the right direction is the eaves direction ( Downward direction). The last two digits of the reference numerals in FIG. 2 are the same as those described in FIG. 1A, and the same reference numerals as those in FIG.

In FIG. 2A, the first roofing material 10
No. 0 is thatched on the base plate 999. At this time, in the horizontal tip portion 101, the installation nail 111 has the first roof member 1
It penetrates through 00 and is cast on the base plate 999. Then, the second roof material 200 is arranged on the ridge side of the first roof material 100.

In FIG. 2B, the first roofing material 10
The protrusion 210 of the second roofing material 200 is aligned with the position of the recess 105 of 0. At this time, the eaves-side horizontal portion 208 of the second roofing material 200 overlaps the ridge-side horizontal portion 103 of the first roofing material 100.

In FIG. 2C, the second roof material 20
By moving 0 toward the ridge, the first roofing material 10
The protruding portion 210 of the second roofing material 200 is fitted into the recessed portion 105 of 0. Then, in the tip horizontal portion 201 (not shown), the installation nail 211 (not shown) is attached to the second roof member 20.
It pierces 0 and is set in the base plate 999. At this time, the surface of the ridge-side horizontal portion 103 of the first roofing material 100 (side C in the figure)
D) and the back surface (side UW in the figure) of the eaves-side horizontal portion 208 of the second roof material 200 are in contact with each other, and the front side (side EF in the figure) of the concave portion 105 of the first roof material 100 and the second side. The surface (the side YZ in the drawing) of the protruding portion 210 of the roof material 200 is in contact. (Operation) FIG. 3 is a cross-sectional view in the width direction for explaining the operation of the embodiment of the roofing material according to the present invention, in which the left direction is the ridge direction (upward direction) and the right direction is the eaves direction (downward direction). ). The last two digits of the reference numerals in FIG. 3 are the same as those described with reference to FIG. 1A or FIG.

In FIG. 3, when the snow is about to slide toward the eaves, the load of the snow acts on the rising portion 209, and the rising portion 209 exerts a force in the direction of falling toward the eaves with the bending position W as a fulcrum. receive. At this time, the startup unit 209
The protrusion 210 connected to the eaves side surface 209Y tends to rotate around the bending position W. Therefore, the protrusion 210 receives a force that further penetrates into the recess 105,
Further, the front surface (side EF in the drawing) of the recess 105 is pushed upward in the front direction.

That is, due to the load of snow, the protrusion 210
The recess 105 is fitted more tightly, and the watertightness is not deteriorated.

[Second Embodiment] (Roofing Material) FIG. 4 is a sectional view in the width direction showing another embodiment of the roofing material according to the present invention, in which the left direction is the ridge direction (upward direction), The right direction is the eaves direction (downward direction). In FIG. 4, the roofing material is the roofing material shown in FIG. 1 (Embodiment 1) in which the tip fitting portion 60 and the intermediate fitting portion 70 are arranged.

That is, on the ridge side, a tip horizontal portion 41 (side AB in the figure) at the edge of the ridge, and a ridge inclination that is continuous with the tip horizontal portion 41 and inclines toward the eaves and is bent in the front direction. The ridge-side horizontal portion 43 connected to the portion 42 (side BC in the figure) and the ridge-side inclined portion 42
(Side CD in the figure), a ridge-side vertical portion 44 connected to the ridge-side horizontal portion 43 and bent in the back direction (side DE in the figure), and a ridge-direction and eaves direction connected to the ridge-side vertical portion 44 Concave portion 45 bent to (formed by side EF and side FG in the figure)
And a central horizontal portion 46 connected to the recess 45 (side GT in the figure)
Are formed.

On the other hand, on the eaves side, the eaves side inclined portion 47 (the side TU in the drawing) is connected to the central horizontal portion 46 and is bent in the front direction.
And an eaves-side horizontal portion 48 (side UW in the figure) connected to the eaves-side inclined portion 47, and a rising portion 49 connected to the eaves-side horizontal portion 48 and protruding in the front direction (a surface 49W on the ridge side in the drawing). (In the figure, side W
X) and the eaves-side surface 49Y (formed by the side XY in the figure) and the lower edge of the eaves-side surface 49Y of the rising portion 49 (position Y in the figure), in the ridge direction. A bent protrusion 50 (side YZ in the drawing) is formed.

The tip fitting portion 60 includes a part of the tip horizontal portion 41 (side AB in the drawing) and a tip vertical portion 61 (FIG. 8) bent in the front direction at the ridge-side edge of the tip horizontal portion 41. Middle, side A
N) and a front end folded-back portion 62 (side NO in the figure) which is connected to the front-end vertical portion 61 and is folded back toward the eaves.

The central fitting portion 70 is the central horizontal portion 4
A central sloped portion 72 (in the figure, side HI) that is continuous with the ridge-side portion of 6 (side GH in the figure) and is inclined toward the eaves and bent in the front direction.
And a central horizontal portion 73 connected to the central inclined portion 72 (in the figure, side I
J), a central vertical portion 74 connected to the central horizontal portion 73 and bent in the back direction (side JK in the drawing), and a central protruding portion 7 connected to the central vertical portion 74 and bent in the ridge direction and the eaves direction.
5 (formed by sides KL and LM in the figure). The back surface (the side LM in the drawing) of the central protruding portion 75 is a portion of the central horizontal portion 46 on the eaves side (in the drawing,
It is connected to the side MT).

At this time, the tip vertical portion 61 and the ridge-side vertical portion 4
4 (horizontal distance AE in the drawing) is substantially equal to the horizontal distance (horizontal distance LY in the drawing) between the tip of the intermediate protruding portion 75 and the eave-side surface 49Y of the rising portion 49. Therefore,
The protruding portion 50 and the central protruding portion 75 of the other roofing material can be fitted into the concave portion 45 and the tip fitting portion 60 of the one roofing material, respectively.

The central projecting portion 75 may be in contact with either the tip end folded portion 62 (side NO in the figure) or a part of the tip horizontal portion 41 (side AB in the figure). Further, instead of this, the tip folded-back portion 62 (side NO in the drawing) is the front surface of the central horizontal portion 73 (side IJ in the drawing) of the central fitting portion 70 or the front side of the central protruding portion 75 (in the drawing, It may abut on any of the sides KL). (Construction Method) FIG. 5 is a cross-sectional view in the width direction showing a method for constructing another embodiment of the roofing material according to the present invention,
Left direction is ridge direction (upward direction), right direction is eaves direction (downward direction)
Is. The last two digits of the reference numeral in FIG. 5 are the same as those explained in FIG.
Some explanation is omitted.

In FIG. 5A, the first roofing material 30
No. 0 is thatched on the base plate 999. At this time, in the horizontal tip portion 341, the installation nail 351 has the first roof member 3
It penetrates through 00 and is cast on the base plate 999. Then, the second roof material 400 is arranged on the ridge side of the first roof material 300.

In FIG. 5B, the first roofing material 30
The protruding portion 450 of the second roofing material 400 is aligned with the position of the concave portion 345 of 0. At this time, the central fitting portion 4 of the second roof member 400 is attached to the horizontal end portion 341 of the first roof member 300.
Place 70.

In FIG. 5C, the second roof material 40
By moving 0 toward the ridge, the first roofing material 30
The center protruding portion 475 and the protruding portion 450 of the intermediate fitting portion 470 of the second roofing material 400 are fitted into the leading end fitting portion 360 and the recessed portion 345 of 0, respectively. Then, in the horizontal end portion 441 (not shown), the installation nail 451 (not shown)
Are pierced through the second roofing material 400 and placed on the base plate 999. (Operation) FIG. 6 is a cross-sectional view in the width direction for explaining the operation of the embodiment of the roofing material according to the present invention, in which the left direction is the ridge direction (upward direction) and the right direction is the eaves direction (downward direction). ). Regarding the same parts as those described in FIG. 5,
The same reference numerals are given, and a part of the description is omitted.

In FIG. 6, a first roofing material 300, a second roofing material 400, and a third roofing material 500 are roofed from the eaves side toward the ridge.

The first roof member 300 has a horizontal end portion 341.
In, the fixed to the base plate 999 by the installation nail 351.

The second roofing member 400 has a protruding portion 450.
And the central protruding portion 475 are fitted into the recessed portion 345 and the tip fitting portion 360 of the first roofing material 300, respectively.
It is fixed at 99.

The third roof member 500 has a protruding portion 550.
And the central protruding portion 575 are fitted into the concave portion 445 and the tip fitting portion 460 of the second roofing material 400, respectively, and are fixed to the base plate 999 by the installation nail 551 (not shown) at the tip horizontal portion 541 (not shown). There is.

Therefore, when the wind pressure acts as a negative pressure, the second roofing member 400 has a recess 445 and an intermediate fitting portion 470.
With the fulcrum as a fulcrum, a load (indicated by an arrow in the drawing) acts in a drum-shaped displacement direction. Note that the intermediate fitting portion 470
Is not arranged, the recess 445 and the protrusion 45
Since it is displaced like a drum around 0 as a fulcrum, the distance between the fulcrums is greatly reduced and the displacement amount is decreased by disposing the intermediate fitting portion 470. As a result, the risk of loosening or deformation of the fitting portion is reduced, and the problem of poor rain storage is solved.

[Embodiment 3] (Installation status of roofing material) FIG. 7 is a cross-sectional view in the width direction showing the installation status of the roofing material according to another embodiment of the present invention. The direction (upward) and the direction to the right are eaves (downward). The same parts as those of the first embodiment described with reference to FIGS. 1 and 2 are designated by the same reference numerals, and part of the description will be omitted.

In FIG. 7A, the second roofing material 20
A plate member 80 (thickness: 5 mm) made of an acrylic plate is arranged inside the rising portion 209 of 0. That is, the plate member 80 is sandwiched between the ridge-side surface 209W and the eaves-side surface 209Y of the rising portion 209, and further on the ridge-side vertical portion 104 (side DE in the figure) of the first roofing material 100. Abutting.

Therefore, the rising portion 2 is loaded by the load of snow.
When a force is exerted on the eaves side with the bending position W as the fulcrum, the rising portion 209 is stiffened by the plate member 80, and the plate member 80 is the ridge side of the first roofing material 100. Since it is strongly pressed against the vertical portion 104 (side DE in the figure) and resists rotation, the rising portion 209 does not fall at the bending position W portion. Also, the protrusion 210
Receives a force in a direction further entering the recess 105,
At the same time, the front surface (side EF in the drawing) of the recess 105 is pushed upward in the front direction.

That is, the start-up unit 2 is loaded by the load of snow.
It is possible to prevent the snow fall prevention function from being lowered due to the fall of 09, and further, the fitting between the protrusion 210 and the recess 105 becomes tighter, the watertightness is improved, and the possibility that the rain storage is deteriorated is reduced.

The plate 80 is not limited to the acrylic plate, and other plastic plates, metal plates such as aluminum, wood, and the like can be used to obtain the same effect. Further, the thickness of the plate-like body 80 can be housed inside the rising portion 209 and is equal to or less than the inner width, and the height thereof is the height of the eave-side surface 209Y (height XY in the figure). Hereinafter, it is desirable that the height of the surface 209Y on the eaves side is at least 1/2 or more.

In FIG. 7B, the first roofing material 10
The rod-shaped body 90 is arranged in the concave portion 105 of 0. That is, the rod-shaped body 90 has the second roofing material 20 on the bottom of the recess 105.
It is pushed in by the protrusion 210 of 0. Therefore, the rising portion 209 is bent at the bending position due to the load of snow.
When a force is applied to the side of the eaves with W as a fulcrum, the protrusion 210 receives a force that further penetrates into the recess 105, so that the rod-shaped body 90 is tightened, the watertightness is further improved, and there is no leakage of water. The risk is reduced.

[0066]

According to the roofing material of the present invention described above, the following remarkable effects can be obtained. 1) Due to the load of snow, the fitting portions of the roofing materials receive a tighter fitting force, so that the watertightness is assured and the risk of leakage of soot is reduced. 2) In the case of fitting at two locations in the width direction, when wind pressure acts on negative pressure, drum-shaped displacement is suppressed, so the risk of loosening or deformation of the fitting part is reduced, and The risk of deterioration and roof damage is reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view in the width direction showing an embodiment of a roofing material according to the present invention.

FIG. 2 is a cross-sectional view in the width direction showing a method of constructing an embodiment of a roofing material according to the present invention.

FIG. 3 is a cross-sectional view in the width direction for explaining the operation of the embodiment of the roofing material according to the present invention.

FIG. 4 is a widthwise sectional view showing another embodiment of the roofing material according to the present invention.

FIG. 5 is a cross-sectional view in the width direction showing a method of constructing another embodiment of the roofing material according to the present invention.

FIG. 6 is a cross-sectional view in the width direction for explaining the operation of the roof material according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view in the width direction showing an installation situation in another embodiment of the roofing material according to the present invention.

FIG. 8 is a cross-sectional view of a conventional roofing material having a snowfall prevention function.

FIG. 9 is a cross-sectional view of a conventional roofing material having a snowfall prevention function.

FIG. 10 is a perspective view showing a part of a long roof panel for a side roof having a conventional snowfall prevention function.

FIG. 11 is a cross-sectional view illustrating a state of a rising portion according to a conventional technique.

FIG. 12 is a cross-sectional view schematically illustrating a situation in the case where a negative pressure is applied to the roof material in the related art.

[Explanation of symbols]

1, 11, 21, 31, 41 Tip horizontal part 2, 12, 22, 32, 42 Building side slope 3, 13, 23, 33, 43 Horizontal part on the building side 4, 14, 24, 34, 44 Building side vertical part 5, 15, 25, 35, 45 Recess 6, 16, 26, 36, 46 Central horizontal part 7, 17, 27, 37, 47 Eave side slope 8, 18, 28, 38, 48 Eaves side horizontal part 9, 19, 29, 39, 49 Startup section 9W, 19W, 29W, 39W, 49W Building side surface 9Y, 19Y, 29Y, 39Y, 49Y Eave side 10, 20, 30, 40, 50 Projection 60 Tip fitting part 61 Vertical tip 62 Tip folding part 70 Central fitting part 72 Central slope 73 Central horizontal part 74 Central vertical part 75 Central protrusion 80 Plate 90 Rods 100 First roofing material 101 Tip horizontal part 103 Building side horizontal part 104 vertical side 105 recess 106 Central horizontal part 111 Installation nail 200 Second roofing material 201 Horizontal part of the tip 206 Central horizontal part 208 eaves side horizontal part 209 startup section 209W ridge side surface 209Y eaves side 210 Projection 211 Installation nail 300 First roofing material 341 Horizontal part of tip 343 Building horizontal part 345 recess 351 Installation nail 360 Tip fitting part 400 Second roofing material 441 Horizontal part of tip 445 recess 448 eaves side horizontal part 450 protrusion 451 Installation nail 460 Tip fitting part 470 Central fitting part 472 central slope 473 central horizontal part 475 central protrusion 500 Third roofing material 541 Tip horizontal part 551 Installation nail 545 recess 550 protrusion 999 Base plate

Claims (6)

[Claims] 1. A horizontal roof for a thatched roof, which has a ridge-side fitting portion arranged on the ridge side and an eaves-side fitting portion arranged on the eaves side, and is formed of metal folding plates by being fitted to each other. In the roofing material, the ridge-side fitting portion has a concave portion that opens in the eaves direction, and the eaves-side fitting portion has a protruding portion that projects in the ridge direction. A roofing material, wherein the protruding portion of the roofing material is fittable, and a rising portion rising from the protruding portion in a front direction is formed. 2. The roofing material according to claim 1, wherein a surface of the rising portion on the eaves side is inclined substantially at right angles to the projecting portion or in the ridge direction. 3. A substantially U-shaped or V-shaped tip fitting portion on the ridge side edge, and a substantially S-shaped intermediate portion between the ridge side fitting portion and the ridge eaves side fitting portion. The roofing material according to claim 1 or 2, wherein the roofing material has a fitting portion, and the tip fitting portion of the second roofing material can be fitted into the intermediate fitting portion of the first roofing material. 4. The stiffening plate member is disposed between the ridge-side surface and the eaves-side surface of the rising portion, according to claim 1. Roofing material. 5. The plate-shaped body installed on the second roofing material is abuttable on the eaves side of the ridge-side fitting portion of the first roofing material. The listed roofing material. 6. The roofing material according to claim 1, wherein a watertight rod-shaped body is arranged in the recess.