JPH0833053B2 - Horizontal roofing shingle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a metal roof shingle manufactured from a thin steel plate or the like, and more specifically, to a metal roof shingle having a predetermined width and adjoining both ends of a long metal plate having a predetermined width. The present invention relates to an improvement of a roofing plate of a horizontal roof type in which an eave-side molding portion and a ridge-side molding portion are formed so that things are engaged with each other.

[Conventional technology]

As a roof board of this type, there is a typical roof board as shown in FIG. 7 or FIG.

The roof plate (1) shown in FIG. 7 has an eaves side engaging part (3) formed by folding back a part of the eaves side end of the flat face plate part (2) toward the ridge side on the back side. , A ridge-side engaging portion (4) which is also formed by folding a part of the ridge-side end toward the eaves side on the surface side, and as shown in the drawing, the roof plate ( The ridge-side engaging portion (4) of 1) and the eaves-side engaging portion (3) of the roof plate (1) located on the ridge side are engaged with each other and sandwiched between them, so that a plurality of ridge-side engaging portions are provided in the eaves ridge direction. The roof plates (1) and (1) are connected together. In the case of using the roof plate (1), a so-called flat roof having a smooth appearance is formed with few steps caused by the engaging structure of the engaging portions (3) and (4).

The roof plate (11) shown in FIG. 8 has a face plate (1
The eaves side engaging part (13) formed at the eaves side end of 2) is formed by bending a part of the hanging bottom surface part (14) and the lower end part further folded back toward the ridge side. It is composed of the engaging protrusion (15) and the face plate (12) corresponding to this.
The ridge-side engaging portion (16) formed at the ridge-side end of the holding portion (17) formed by partially folding back the engaging protrusion (15) in the eaves-side direction. And a standing portion (18) formed so as to rise from the eaves side end portion of the holding portion (17).

This roof shingle (11) is also located on the eaves side, but the engaging projection (15) is located on the ridge side but held by the holding part (17), so that multiple roof shingles are connected in the eaves ridge direction. The roof is made up of the roof.

[Problems to be Solved by the Invention] By the way, what is emphasized as the required performance for such a roof structure is waterproofness (rainfall), load resistance, and appearance.

When the roof plate (1) of FIG. 7 is evaluated from such a viewpoint, the roof plate (1) is an orderly one that constitutes a smooth flat roof as described above, and has a planar structure. Therefore, a strong roof surface can be formed according to the basic structure of the roof.

However, due to the connection structure, problems tend to occur in terms of waterproofness. That is, in order to secure the required waterproof performance in the roof structure using the roof plate (1), the eaves-side engaging portion (3) and the ridge-side engaging portion (4) and the position where they overlap with each other during construction A part of the face plate part (2) in relation to
It is necessary to crush so that they contact each other with an appropriate pressure.

However, it is quite difficult to process to apply such an appropriate pressure, and if the crushing method is weak, a gap will be created between the joints of the above parts and dust and dirt will easily enter, and of course waterproofness. Also gets worse. Also, when the crushing method is too strong, the gap between the joints becomes too close and a capillary phenomenon occurs.
It is guided to the back side of the and causes rain leakage.

On the other hand, in the horizontal roof with the roof plate (11) shown in FIG. 8, the problem of waterproofness found in such a flat roof has been solved. That is, in this roof structure, the vertically lower surface portion (14) forming an upright surface in the eaves side engaging portion (13) is a part of the mutual engaging portion of the engaging protrusion (15) and the holding portion (17). Since the eaves side end of the face plate part (12) rises up and a large space part (19) partitioned by the upright part (18) is defined inside it, rainwater etc. from the engaging part Rainwater does not enter inside the space (19),
Since it is guided and discharged to the side in the space (19), it is difficult for rain to leak indoors.

However, on the other hand, if a large space (19) is formed to ensure sufficient water-tightness, the rising height (final height h in the figure) of the drooping bottom plate (14) will naturally increase, resulting in a stepped appearance. There is a problem that it becomes a conspicuous roof.

Also, if the height of the drooping surface part (14) is kept small so that the step is not conspicuous, the volume of the space part (19) will be reduced accordingly, so that the space part (19) will be clogged with dust, etc. This makes it easier to leak rain.

In addition, when the space portion (19) is too small or too large, when a strong wind that laterally moves inside the engagement portion is received, turbulent flow occurs in the engagement portion due to the action of strong wind pressure, and the space portion (19) Rainwater that has penetrated into the inside is blown up and the standing portion (1
There is also the problem of getting over 8) and invading the indoor side.

Further, in this roof plate (11), the engaging part is the eaves side engaging part (1
Because it is located inside 3) and at a distance to the ridge,
There is also a problem that the engagement strength between the eaves side engaging portion (13) and the ridge side engaging portion (14) is weak. In this case, the eaves side engaging portion (13) floats up when a strong wind blows, and at this time, dust and dirt intrude from the engaging portion and accumulate, which impairs weather resistance.

In addition, there is nothing for supporting the space portion (19) from the back surface side in this roof plate (11), and even if the top portion of the standing portion (18) is brought into contact with the back surface of the face plate portion (12), Since the abutting portion is limited to the vicinity of the eaves side engaging portion (13), there is a problem that the face plate portion (12) as a whole has low strength and rigidity. As a result, there is a problem in that deformation occurs when a strong load is applied due to snow or the like.

The present invention has been made by paying attention to such a conventional problem, and is excellent in wind pressure resistance, water resistance and load resistance, and, in appearance, there are few steps in the engaging portion, and the capillary phenomenon. It is an object of the present invention to provide a horizontal thatched roof plate that can form a flat roof-like roof with a large space for preventing the occurrence of heat generation.

[Means for solving the problem]

In order to achieve the above-mentioned object, the invention described in claim 1 is such that a face plate portion is formed at a central portion in the longitudinal direction of a long metal plate, and an eaves side forming portion formed on one side portion of the face plate portion and another side portion are formed. A roof plate that has a ridge-side molded part each of which is formed, and a lower roof-side molded part is engaged and connected to an upper eaves-side molded part to form a horizontal roof, and the eaves-side molded part has a face plate. The ridge-side forming part has an ridge-side end portion of the face plate portion which is folded back in the eaves-side direction. And a holding portion formed to hold the engaging protruding portion of the ridge-side roof plate, and an extension portion formed by folding back from the eave-side end portion of the holding portion toward the ridge side on the upper surface side. , A standing part formed by standing up from the extension part at a part of the holding part on the ridge side from the ridge side end, and the top part of the standing part is folded to the eaves side. In return, a supporting part formed so as to abut the face plate part back surface of the ridge side roof plate, and the eaves side molding part from the vicinity of the support point by the supporting part to the eaves side end part of the extension part. It is characterized in that it has a descending surface portion formed so as to descend toward it, and the engaging portion is formed by the engaging protrusion and the holding portion that holds the engaging protrusion.

Further, in the invention described in claim 2, a face plate portion is formed at a central portion in the longitudinal direction of a long metal plate, an eaves side forming portion formed on one side portion of the face plate portion, and a ridge side forming portion formed on the other side portion. A roof plate having a roof roof by connecting the eaves side molding part on the lower side with the eaves side molding part on the lower side, and the eaves side molding part has an end part of the face plate part on the lower surface. The ridge-side roof plate is provided with an engaging protrusion formed by folding back from the side toward the ridge, and at the ridge-side forming part, the ridge-side end of the face plate portion is folded back toward the eaves on the upper surface side. A holding portion formed to hold the engaging protruding portion of the holding portion, an extension portion formed by folding back from the eaves side end portion of the holding portion on the upper surface side in the ridge direction, and a ridge of the holding portion. The standing part formed by standing up from the extension at a part closer to the ridge than the side end, and the top of this standing part are folded back to the eaves, A supporting part formed so as to contact the back surface of the plate part, and the eaves side molding part is formed so as to descend from the vicinity of the supporting point of the supporting part toward the eaves side end part of the extension part. A descending surface portion, a front edge portion of the descending surface portion, the engaging projection portion, the holding portion,
It is characterized by sandwiching the line edge portion of the extension from above and below to form multiple and flat engagement.

[Action]

According to the invention described in claim 1, when a plurality of roofing boards are roofed in the eaves ridge direction to construct a horizontal roof with the above-mentioned configuration, the engaging protrusion of the ridge side roofing board is a holding portion of the eaves side roofing board. First to fit in
To form the engaging portion of. Also, at this time, the
The standing part that rises at a position closer to the ridge than the engaging part and the support part that is formed by folding back the top part to the eaves are in contact with the back face plate of the ridge side roof plate to support it. At the same time, the second engaging portion is formed at the abutting portion.

The first and second engaging portions are separated from each other according to the length of the extension portion, and are long in the eaves ridge direction, and thus define a sufficiently large space portion. Further, the second engaging portion is located above the first engaging portion. Therefore, even if rainwater or the like enters the first engaging portion due to the capillary phenomenon, it does not reach the second engaging portion due to the space portion.

Further, even if a strong wind pressure that laterally runs on the first engaging portion acts, since the second engaging portion is located deeper than the first engaging portion, accumulated water is Even if it is blown into the space, it does not get wet because it penetrates into the indoor side through the second engaging portion.

In particular, according to the present invention, between the inclined descending surface portion provided on the eaves side molding portion and the engagement protrusion portion, the engagement protrusion portion and the holding portion of the eaves side roof plate that holds the engagement protrusion portion. Further, since the engaging portions that sandwich a part of the extension portion in a plane are formed, strong strength is secured in these engaging portions, and therefore, the rising phenomenon of the eaves side molding portion during strong wind and rain can be suppressed.

On the other hand, as described above, the ridge-side roof plate is supported by the ridge-side part rather than the eaves-side end due to the rising part and the supporting part which are raised at the end of the extension part. Therefore, the load bearing performance of the entire roof plate is improved.

Furthermore, since the space portion has a sufficient volume for waterproofing due to its sufficient length in the eaves direction, the thickness of the roof structure can be reduced accordingly. This allows
According to this roof plate, a flat roof-like roof surface with few steps can be obtained.

Further, as in claim (2), the front edge portion of the descending surface portion, the engaging projection portion, the holding portion and the front edge portion of the extension portion are sandwiched,
Since the multiple and flat engaging portions are formed, rainwater intrusion and waterproofing action is further improved in addition to the above-mentioned actions.

〔Example〕

An embodiment of a roof plate according to the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a roof structure roofed by using a roof plate according to this embodiment, and FIG. 2 is an enlarged view showing details of a connection portion thereof. The alternate long and short dash line in the figure indicates the reference plane of the roof.

In FIG. 1 or FIG. 2, the roof plate (31) is made of, for example, a long steel plate of a predetermined width that has been baked and coated for rust prevention. The eaves side molding portion (33) is formed on one end side of the face plate portion (32), and the ridge side molding portion (34) is continuously formed on the other end side in the longitudinal direction.

In the eaves side molding part (33), an inclined descending surface part (35) is formed by bending from the middle of the face plate part (32) toward the eaves side downward, and the eaves side of the descending surface part (35) is formed. The engaging protrusion (36) is folded back from the end toward the ridge. And this descending surface part (35) is a ridge side molding part (34) mentioned later.
The bent portion is formed so as to descend from the vicinity of the support point (41a) of the support portion (41) toward the vicinity of the eaves side end portion of the extension portion (39) described later.

Incidentally, (37) is an edge-bending portion obtained by folding back the edge portion of the engaging projection portion (36), and in this case, it is finished in such a manner that it is wound below the projection portion (36), but of course it is formed above. You may do it.

On the other hand, in the ridge-side forming part (34), the ridge-side end of the face plate part (32) is folded back toward the eaves side on the upper surface side thereof to engage the other roofing plates (31) adjacent to the eaves side. A holding portion (38) is formed so as to hold the combined projecting portion (36), and the holding portion (38) is folded back toward the ridge on the upper surface side from the eaves side end portion to extend in a flat plate shape. A part (39) is formed.

Furthermore, from the ridge-side end of the extension part (39), so as to stand up at a part on the ridge side of the ridge-side end of the holding part (38),
That upright portion such that l ₂ ≧ ₁ in FIG. 2 (4
0) stands almost vertically to the roof reference plane.

A support portion (41) is bent at the top of the upright portion (40) toward the eaves side so as to abut against the back surface of the face plate portion of another roof plate (31) adjacent to the eaves side.

In order to assemble the roof board (31) according to this embodiment into a roof structure, first, a roof board (31) located at the end closest to the eaves is first placed on a rafter or a field board (not shown) that forms the basis of the roof structure. ) Is attached using a fixture such as a hanger and nails.

Next, the ridge-side forming part (34) of this lower shingle (31)
The upper side, that is, the eaves side molding part (3) of the ridge side roof plate (31).
3) is engaged, and this ridge-side roof plate (31) is also fixed to the roof base by using a fixture such as a suspender. Specifically, the eaves side molding part (3) is provided inside the holding part (38) of the ridge side molding part (34).
Insert the engaging protrusion (36) of 3) from the front to
6) Elastically sandwich the holding part (38).

Such work is performed one after another from the eaves side to the ridge side, and by connecting the required number of roof shingles (31),
A side-roofed roof is constructed.

And, in the state assembled in this way, the connecting portion of the roof plates (31) adjacent to each other in the eaves direction is the roof plate (31) adjacent to the eaves side as shown in FIG.
The holding portion (38) itself that holds the engaging protrusion (36) is the engaging protrusion (36) and the front edge portion of the descending surface (35) folded back from the eaves side end in the ridge direction. In the state of being sandwiched between them, the multiple engaging portions (42), that is, the first engaging portions are formed, and the supporting portion (41) is provided with the face plate portion (3) of the eaves side roof plate (31).
A second engaging portion (43) is formed in a portion that abuts and supports the back surface of 2).

The first engaging portion (42) and the engaging portion (43) of the base 2 are
A space (44) having a sufficient volume is defined by being separated by the length of the extension portion (39), in this case, the length of l ₂ . Further, the second engaging portion (43) is located above the first engaging portion (42) at the top of the upright portion (40) that hits the water.

As a result, as described as the operation of the present invention,
Even if rainwater or the like enters the space portion (44) through the first engaging portion (42), this will cause the second engaging portion (43).
It does not enter the indoor side through the space (44)
The bottom surface, that is, the upper surface of the extension portion (39) is guided to the side as a drainage surface and discharged to the outside.

Further, as described above, since the first engaging portion (42) having a multiple structure is formed at the eave-side tip of the roof plate (31), the coupling strength of this portion is extremely high, and therefore strong wind pressure acts. Even if it does, it does not cause floating and dust and dirt are prevented from entering the engaging portion. Further, even if rainwater enters the space (44), it is difficult for the rainwater to wind up due to wind pressure, and therefore extremely excellent waterproofness is exhibited.

On the other hand, due to the upright portion (40) and the support portion (41) rising at the end of the extension portion (39), the roof plate (31) located on the ridge side is slightly more than the eaves side end portion. Since it will be supported by the ridge side part, the strength and rigidity of the roof as a whole will be improved, and sufficient resistance to the load of snow will be exhibited.

Further, since the space (44) has a sufficient length for the eaves to secure a volume necessary for waterproofing, the space in the vertical direction such as the descending surface portion (35) and the upright portion (40) is correspondingly secured. The size can be reduced, and the roof surface on the flat roof can be obtained with less unevenness.

By the way, in the above roof plate (31), the bonding strength and weather resistance thereof can be further enhanced by subjecting the first engaging portion (42) to a simple process as described below.

This is because the preload is set in the first engaging portion (42) in the first place. That is, the tip of the eaves side molding portion (33) is set in advance to such an extent that the descending surface portion (35) and the engagement protruding portion (36) are in contact with each other at a predetermined pressure, and the roof plate (31) is placed in the ridge direction. When connecting, between the descending surface part (35) and the engaging projection part (36), the holding part (38) and extension part (39) of another roof plate (32) located on the eaves side are connected. It is intended to elastically clamp a part.

As a result, the holding portion (38) and a part of the extension portion (39) are elastically held between the engaging protrusion (36) and the descending surface portion (35) as described above, and at the same time, engage. Since the projecting portion (36) is also sandwiched between the holding portion (38) and the face plate portion (32) portion therebelow, a strong coupling force is exerted between them.

Secondly, the engaging portion (42) is squeezed from above and below to crush the engaging protrusion (36), the holding portion (38), and the holding portion (38) as shown in FIG.
The front edge portion of the extension portion (39) and the front edge portion of the descending surface portion (35) are brought into close contact with each other. For example, a bench-shaped tool grips and compresses the upper surface of the tip of the descending surface (35) and the lower surface of the engaging protrusion (36),
Alternatively, a tool called a sword blade on a thin plate is inserted into the lower surface of the engaging projection (36), and then the descending surface (35) is crushed from above with a wooden hammer. When the roof plate (31) is made of a relatively soft metal material,
It is also possible to bring them into close contact by crushing them with their feet.

When the first engaging portion (42) is crushed in this manner, the joint strength between the roof plates (31) at that portion is further improved, so that the eaves-side end portion when strong wind pressure acts. It is possible to more surely prevent the floating of the water, and the intrusion of dust and the leakage of rain resulting from this.

Next, regarding another embodiment of the roofing board according to the present invention,
This will be described with reference to FIGS.

This is a downward surface part of the eaves side molding part (33), and is directed downward from a part slightly closer to the eaves side than the part supported by the support part (41) of the other roof plate (31) located on the eaves side. The vertical surface portion (35A) formed and the horizontal surface portion (35B) formed from the lower end portion thereof toward the front along the upper surface portion of the extension portion (39).
It is provided with.

That is, in the embodiment shown in FIG. 4 to FIG. 6, the inclined descending surface portion is formed as the descending surface portion (50) including the vertically lower surface portion (35A) and the horizontal surface portion (35B). . That is, the front edge portion of the extension portion (39) and the holding portion (38)
And the engaging protrusion (36) are elastically clamped from above and below, so that the vertical lower surface (35A) and the horizontal surface (35A).
B) and the descending surface part (50) are formed.

In this embodiment, since the horizontal surface portion (35B) that is substantially parallel to the extension portion (39) is formed, the degree of adhesion of each contact surface when the first engaging portion (42) is crushed from above and below. Can be further increased, and stronger bond strength can be realized. Further, in this case, since the initial thickness of the first engaging portion (42) is also thin, workability at the time of crushing is also good. Since the other points are substantially the same as those of the first embodiment, the same parts are designated by the same reference numerals in the drawings and their description is omitted.

〔The invention's effect〕

As described above, according to the invention of claim 1, in addition to the first engagement portion formed by the engagement protrusion of the ridge-side roof plate and the holding portion of the eaves-side roof plate, A second engaging portion located relatively above is formed by the support portion located on the ridge side of the first engaging portion and the back surface of the face plate portion of the ridge side roof plate, and moreover, in the eaves ridge direction. Since a large space is defined between the two engaging portions that are separated from each other, it is assumed that rainwater, dust, etc. will enter the first engaging portion, and that strong wind pressure that laterally runs inside the engaging portion. Even if the water is received, rainwater or the like that has entered the space does not enter the indoor side to cause rain leakage, and therefore, excellent waterproofness can be obtained.

In particular, between the inclined descending surface portion provided on the eaves side molding portion and the engaging protrusion, the front edge portion of the holding portion and the extension portion of the eaves side roof plate are planarly sandwiched, and the multiple structure is formed. Since the engaging parts are formed, strong strength is secured in these engaging parts to suppress the lifting phenomenon of the eaves side molding part during strong wind and rain, and effectively prevent dust accumulation and rain leakage caused by this lifting phenomenon. Can be prevented.

Further, in the roof panel of the present invention, the standing portion is raised at the end of the extension portion extending toward the ridge side from the first engaging portion, and the supporting portion inclined toward the eaves from the vicinity of the supporting point with the standing portion is provided. Form,
Since the rear surface of the ridge side roof plate is supported by this support portion, high strength and rigidity can be imparted to the whole roof plate, that is, sufficient load resistance that can face a large load such as snow is obtained.

Further, according to the roof plate of the present invention, since each engaging portion is configured to be separated in the eaves ridge direction, a sufficient space necessary for waterproofing is ensured, so that the front and rear of the space are increased accordingly. It is possible to reduce the vertical dimension of the partitioning slope and the upright portion, that is, the step difference generated on the roof surface, and thus a flat roof-like ordered roof surface can be obtained.

Further, according to the present invention, it is possible to easily crush and crush the engaging portion from above and below, whereby the connection strength can be further improved.

Further, in the invention described in claim 2, since the descending surface portion is formed as the vertically lower surface portion and the horizontal surface portion, the descending surface portion and the engaging protrusion formed continuously with the descending surface portion are interposed between them. When the preload is set so as to abut against each other at a predetermined pressure because the hugging part and the extension part of the eaves side roof plate can be elastically sandwiched from above and below to form multiple and flat engagement parts. In addition to the above-mentioned effects, a further watertight effect can be obtained.

[Brief description of drawings]

FIG. 1 is a side view of a roof structure showing an embodiment of a roof plate according to the present invention, FIG. 2 is an enlarged view of an essential part thereof, and FIG. 3 is a side view showing a state in which the engaging part of FIG. 2 is crushed. FIG. 4 is a side view of a roof structure showing another embodiment of the roof plate according to the present invention, FIG.
The figure is an enlarged view of the main part, and FIG. 6 is a side view showing a state in which the engagement part of FIG. 5 is crushed. FIG. 7 and FIG. 8 are side views of a conventional roof structure using a roof plate. (31) …… Roof plate (32) …… Face plate part (33) …… Eaves side molding part (34) …… Building side molding part (35) …… Descent surface part (35A) …… Drop bottom surface part (35B)… … Horizontal plane (36) …… Engagement protrusion (38) …… Holding part (39) …… Extending part (40) …… Upright part (41) …… Supporting part (42) …… First part Mating part (43) …… Second engaging part (44) …… Space (50) …… Face part

Claims (2)

[Claims] 1. A lower metal plate having a face plate portion at a central portion in the longitudinal direction of a long metal plate, an eaves side forming portion formed on one side portion of the face plate portion, and a ridge side forming portion formed on the other side portion. In the roof plate for forming a horizontal roof by engaging and connecting the eaves side molding part of the upper side to the ridge side molding part of the roof side molding part, the eaves side molding part has an end portion of the face plate part from the lower surface side to the ridge side direction. With the engaging protrusion formed by folding back, the ridge-side molding portion is folded back toward the eaves side of the ridge-side end of the face plate portion on the upper surface side thereof to form the engaging protrusion of the ridge-side roof plate. A holding portion formed to hold, an extension portion formed by folding back from the eaves side end portion of the holding portion in the ridge direction on the upper surface side, and a ridge side end portion of the holding portion. The standing part raised from the extension part at the ridge side and the top part of this standing part are folded back to the eaves side and abut on the back of the face plate part of the ridge side roof plate. The eaves side molding part has a descending surface part formed so as to descend from the vicinity of the supporting point of the support part toward the eaves side end part of the extension part. The lateral roofing board, wherein an engaging portion is formed by the engaging protruding portion and the holding portion holding the engaging protruding portion. 2. A lower metal plate having a face plate portion at a central portion in the longitudinal direction of a long metal plate, an eaves side forming portion formed on one side portion of the face plate portion, and a ridge side forming portion formed on the other side portion. In the roof plate for forming a horizontal roof by engaging and connecting the eaves side molding part of the upper side to the ridge side molding part of the roof side molding part, the eaves side molding part has an end portion of the face plate part from the lower surface side to the ridge side direction. With the engaging protrusion formed by folding back, the ridge-side molding portion is folded back toward the eaves side of the ridge-side end of the face plate portion on the upper surface side thereof to form the engaging protrusion of the ridge-side roof plate. A holding portion formed to hold, and an extension portion formed by folding back from the eaves side end portion of this holding portion on the upper surface side in the ridge direction,
A standing part formed by standing up from the extension part at a part on the ridge side of the ridge side end of the holding part, and the top part of the standing part is folded back to the eaves side, and the ridge side roof plate face plate part rear surface is formed. A supporting part formed so as to abut, and the eaves side molding part has a descending surface part formed so as to descend from a vicinity of a supporting point of the supporting part toward a vicinity of an eaves side end of the extension part. Then
The front edge portion of the descending surface portion, the engagement protrusion portion, the holding portion, and the front edge portion of the extension portion are sandwiched from above and below to form a multiple and flat engagement portion. A thatched roof board.