JPH0625461B2 - Roof joint structure using horizontal thatched roof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure of a roof using a horizontal thatched roof plate made of a metal steel plate, and more specifically, a predetermined structure coated with a rust preventive coating. Depending on the width, at both ends of the long metal steel plate,
Pre-formed eaves side and ridge-side molded parts for mutual engagement are formed and formed into side-roofing roof boards, and a plurality of these side-roofing roof boards are mutually connected between the front eaves side and the next ridge side. The present invention relates to a joint structure of a horizontal thatched roof that is engaged and connected to a roof and, in particular, to the improvement of the shape of each molding portion between the eaves side and the ridge side.

[Conventional technology]

Conventionally, for roofing boards in which the eave side and ridge side forming parts of this kind of long metal steel plate are shaped and formed,
Many types of various types and modes have been proposed. Among them, mainly the rain squeeze, that is, the combination engagement intended to prevent the intrusion of rainwater from the eaves side and the ridge side molded parts that are mutually engaged and connected. Part shape development is active.

FIG. 4 shows a conventional example structure of connection shapes in eave-side and ridge-side forming parts that are generally adopted for such a roofing roof plate made of a long metal steel plate. It is shown in a), (b) and FIG.

That is, Fig. 4 (a) is a cross-sectional perspective view showing a lateral thatched roof plate according to the first conventional example configuration, and Fig. 4 (b) is the same as the connection of the eaves side and ridge side molded parts of the lateral thatched roof plate. FIG. 5 is an enlarged cross-sectional view showing an engaged state, and FIG. 5 is an enlarged view showing a connected engaged state of eave-side and ridge-side forming portions in a lateral thatched roof plate according to a second conventional example configuration. FIG.

In each of these conventional example configurations, in the case of the former first conventional example, the horizontal thatched roof plate (1) is made of, for example, a long metal steel plate with a predetermined width that has been baked and coated for rust prevention. Using a roll forming machine or the like for the steel plate, leave the face plate part (2) in the center along the longitudinal direction, and eaves side forming part (3) on one side of it.
, And the ridge-side forming part (4) on the other side part, respectively, is continuously formed and formed, and this is cut into a predetermined unit length and omitted in the drawing. For connection, one of the cut ends is provided with a fold-back connection to the front surface side, and the other is provided with a fold-back connection to the back surface side.

Then, in the eaves side molding part (3), from one side of the face plate part (2), the top part (5) is bent slightly obliquely downward to the eaves side by a predetermined length, and Falling part below the tip
While lowering (6), its lower end edge (7) is bent back inward in an upward arc shape to form a folded-back portion (8), and this folded-back end is formed as an edge-bent portion (9).

Subsequently, the ridge-side forming part (4) is provided with a holding part (10) obliquely so that the edge bending part (9) can be held from the other side part of the face plate part (2). Bend inward upward and raise the projecting piece (11) above the projecting end and then project the projecting edge (12).
Is projected inward and downward.

And in this 1st conventional example structure, when it is on the rafter (13) or the field board surface as a to-be-raised object, first,
The roof side roof board (1), which is the eaves side, here the front side, is installed in the inner space of the wooden roof board (1
4) etc. are arranged, for example, by attaching with a hanging member not shown in the figure, and then this front side side thatched roof plate
Engage and connect the eaves side forming part (3) of the next-side side thatched roof panel (1) on the ridge side to the ridge side forming part (4) of (1) as shown in the figure. By repeating the roofing from the eaves side to the ridge side, that is, from the bottom to the top, the desired lateral thatched roof structure is obtained.

That is, more specifically, as shown in FIG. 4 (b), by holding the next eaves side molding part (3) on the front side ridge side molding part (4), Inserting and engaging an edge bending part (9) including a part of the folding part (8) into the part (10) and connecting the inner surface of the falling part (6) to the projecting edge (12). In this engaged connection state, the edge bending part (9) is held by the holding part (10).
The first decompression space portion (15) is formed by being held in the inside of the holding portion (8) by the upward bending of the folding portion (8), and the second decompression space portion (16) is included in the holding portion (10). Is formed and the falling part (6)
A third decompression space portion (17) is formed between the protruding piece portion (11) and the projecting edge (12).

Next, in the case of the latter second conventional example, the eaves side molding portion (3) is formed with the crown portion (5) and the falling portion (6) as described above, and the lower end edge (7) thereof. Is folded back to the ridge side to form a folded-back portion (18), and this folded-back end is edge-bent (19)
In addition, the ridge-side molded part (4) is also formed with the holding part (10) in the same manner as described above, and the projecting end part thereof is folded back so that the folded back part (19) and The bent portion (20) is raised and bent, and further, the mounting seat (21) is extended to the ridge side. The holding portion (10) is also formed in the second conventional example configuration. ) Is inserted and engaged with the folded-back portion (18) including the edge-bent portion (19), and the falling portion
The inner surface of (6) is abutted against the projecting end of the folded-back portion (19) for connection, and in this connection state, the first decompression space portion (2
2) is formed, and the second depressurized space portion (23) is formed inside the folded portion (19).

In other words, as is apparent from these first and second conventional example configurations, the basic concept of the conventional connecting structure in the eaves side and the ridge side molding portions is that the face plate portion (2) on the front stage side The eaves side molding part (3), which was raised from the face plate part (2) on the next stage side, has the engagement abutting part exposed to the outside. Prevent the ingress of rainwater from the mating surfaces of each molded part and prevent the intrusion pressure of rainwater in each depressurized space part by fitting and engaging so that it is located on the surface of the face plate part (2). The pressure is reduced.

[Problems to be solved by the invention]

However, in the joint structure of a horizontal thatched roof made of a long metal steel plate in each of the conventional examples configured as described above, the engagement abutting portions of the eaves-side and ridge-side forming portions are the surfaces of the face plate portion. It is configured so as to directly contact with the upper part, and this engaging butt portion is necessarily present at the corner angle of the inner corner portion which rises almost at a right angle from the coplanar plate portion. For example, as shown by the arrow in Fig. 4 (b), the wind and rain blown up along the roof slope given to the face plate is exposed at the corner of the inner corner. It will be sprayed intensively on the abutting part, and particularly strong wind and rain pressure will be applied to this engaging abutting part, and the inundation pressure based on the capillary phenomenon at the engaging abutting part will be greatly increased. , Here, from below to the trailing edge following this engagement butt Due to the wind and rain pressure, the action of pushing the engaging abutting portion open is also added, so that the gap between the engaging abutting portion and the face plate surface tends to increase, and the engaging abutting portions are mutually engaged and connected. There is a disadvantage that the risk of water infiltration into the inside of the eaves side and ridge side forming parts will increase further.

In addition, the strong wind and rain that is concentrated and sprayed on the engagement abutting portion is often accompanied by sand, mud, dust, etc., and these also enter the roof together with rainwater. However, there is a risk that red rust will be generated by the iron contained in the sand, and this will flow out and stain the face plate surface and eventually the roof surface. In particular, especially in cold regions, infiltrated rainwater, snowflakes, etc. will freeze. Therefore, there is a problem in that the gap between the engaging surfaces is further enlarged to further increase the chance of rainwater infiltration.

Therefore, in view of such a problem in the conventional device, the object of the present invention is to wind and rain at the engaging butting portions exposed to the outside in the eaves-side and ridge-side molding portions described above. It is also an object of the present invention to provide a roof joint structure using this kind of side-roofing roof plate, which has a shape of a molding portion that can effectively prevent intrusion of sand, mud, dust, and the like.

[Means for solving problems]

In order to achieve the above-mentioned object, a roof joint structure using a thatched roof board according to the present invention has a face plate portion at the center in the longitudinal direction, an eaves side molding portion at one side of this face plate portion, and the like. It has a side-roof roofing board with a ridge-side forming part on the side, and the eaves-side forming part of the next-stage side-roofing roofing plate is engaged with and connected to the ridge-side forming part of the front-side side thatching roofing plate. In the joint structure of a horizontal thatched roof composed of, the eaves side forming part is formed by lowering the falling part to form a lower folded edge, and the lower folded edge is folded back to the ridge side to form an end portion. A folded-back portion having an edge bending portion, and at least one first step rising portion is raised from the face plate portion in the ridge-side forming portion, and
From the flat surface of the step rising part, the second step rising part for connecting the falling part to be as flush as possible is raised to form an upper folding edge for abutting the lower folding edge, and further, the upper folding part It is characterized in that the edge is bent toward the ridge to form a receiving portion for receiving the folded portion including the edge bending portion, and the receiving and holding portion is folded and formed so as to cover the folded portion from the receiving portion.

[Work]

That is, in the roof joint structure using the horizontal thatched roof board according to the present invention, the eaves side molding of the horizontal thatched roof board on the side of the next ridge is compared to the ridge side formed part of the side thatched roof roofing on the front eaves side. By fitting the portion, by engaging and connecting the upper folded edge of the rising portion so as to abut the lower folded edge of the falling portion, and to receive the folded portion including the bent portion in the receiving portion, Engagement abutting portions of the upper and lower folding edges of the rising portion and the falling portion are located at a portion raised from the face plate portion via the first step rising portion and the second step rising portion. Therefore, the wind and rain blown up along the face plate,
First, after being deenergized by the first-stage rising portion, the force is sufficiently weakened in order to hit the second-stage rising portion through the flat surface portion thereof. As it passes, the engaging butting portion is not directly blown, and at the same time, the rising portion and the falling portion are flush with each other as much as possible, so that the wind and rain to be blown can be appropriately treated. In addition, the decompression space is formed inside the engagement butting portion by the folded-back portion, and the intrusion pressure of rainwater can be effectively reduced.

〔Example〕

Hereinafter, different embodiments of the joint structure of the roof using the lateral thatched roof plate according to the present invention will be described in detail with reference to FIGS. 1 to 3.

FIG. 1 is a sectional perspective view showing a lateral thatched roof plate according to the first embodiment, and FIG. 2 is an enlarged sectional view showing a connection engagement state at each eave-side and ridge-side molded portion of the lateral thatched roof plate. Is.

That is, in the configuration of the first embodiment shown in FIGS. 1 and 2, the lateral roofing plate (31) has, for example, a predetermined rust-preventive baking coating as in the case of the conventional configuration. Using a long metal steel plate with a width, by using a roll forming machine or the like for this metal steel plate, leaving a face plate part (32) in the central part along the longitudinal direction, and an eaves side forming part (33) on one side thereof. , The ridge-side forming part (34) on the other side is continuously formed and formed, and this is cut into a predetermined unit length and omitted in the drawing, but normally, it is connected in the longitudinal direction. For this reason, a fold-back connection portion to the front surface side is formed on one of the cut ends, and a fold-back connection portion to the back surface side is formed on the other end.

Then, the eaves side molding portion (33), from one side of the face plate portion (32), the crown portion (35) is bent slightly obliquely outward and downward by a predetermined length, and The falling part (3
6) is lowered, and the folded edge (37) of the lower part is folded back to the ridge side to form a folded portion (38), and this folded end is bent to the upper side to form an edge bent portion (39). I am doing it.

Then, in the ridge-side forming portion (34), the first step rising portion (40a) is raised from the other side portion of the face plate portion (32), and further from the upper flat surface portion (40b) thereof. , 2nd stage rising part
(40c) is raised, the folded edge (41) of the upper part thereof is bent toward the ridge, and the folded portion (38) including the edge bent portion (39).
A receiving portion (42) for receiving the receiving holding portion (42), and the receiving holding portion (43) is folded back upward so as to cover the receiving portion (42), and the receiving holding portion (43) is folded back to The mounting portion (44) for mounting and fixing is formed by lowering and bending to a position corresponding to the face plate surface.

And in the case of this 1st Example structure, each thatched roof board
Assembling the (31) into the roof structure, as in the case of the above-mentioned conventional configuration, by placing it on the rafter (13) as the object to be roofed or on the ground plate surface, first, on the eaves side, here the front stage. The side roofing roof plate (31) on the side, with the wooden wool plate (14) as a backup material appropriately arranged in the inner space part, the mounting part (44) is attached with a peg or the like, Then, as opposed to the ridge-side forming part (34) of this front side side thatched roof board (31), the eaves side formed part (33) of the next stage side thatched roof board (31) on the ridge side.
The rising part (40c) has a series of falling parts (36), and the respective folding edges (41), (37) are butted to form an engaging butted part (46). In addition, the folded-back portion (38) including the edge-bending portion (39) is received in the receiving portion (42), held in the receiving and holding portion (43) and engaged and connected. The engaging connection is sequentially raised from the eaves side to the ridge side, that is, from the lower side to the upper side, to obtain the desired side-roof structure.

Then, in the horizontal thatched roof structure assembled in this manner, the engaging butting portions of the upper and lower folding edges (41) and (37) of the rising portion (40c) and the falling portion (36) are (46) is substantially located on the surface part rising from the face plate part (32), and these second step rising part (40c) and falling part (36) are connected to each other. It is flush with each other, and inside the engaging part, the first part is provided inside the folding part (38).
The decompression space part (45a) and the second decompression space part (45b) are sequentially constructed.

Here, in the case of the configuration of the first embodiment, wind and rain are blown up along the face plate portion (32) for the eave side front stage and the ridge side next stage roofing roof plates (31) that are engaged and connected to each other. As the pressure receiving surface for, as is clear from FIG. 2, first,
The first-stage rising portion (40a) is the direct relevant surface, and then the second-stage rising portion (40c) is the indirect relevant surface. And, in this case, the eaves side which is engaged and connected with each other,
The overall rising height of each molding part (33), (34) on the ridge side is a series of first and second rising parts (40a) (40)
c) is equal to the height of the falling part (36), and the joints exposed to the outside in both of them are indirectly related surfaces at the second rising part (40c). Top folded edge of
(41) and an engaging butting portion (46) of the lower folding edge (37) at the falling portion (36), and this engaging butting portion (4
6) is the face plate portion (32) as in the case of the above-mentioned conventional configuration.
It does not exist in the corner of the inner corner that directly contacts the surface of the flat surface and rises almost at a right angle, and is located flush with the middle part of the rising pressure receiving surface on the surface of the flat surface part (40b). Become.

Therefore, in the configuration according to the first embodiment, the wind and rain blown up along the face plate portion (32) is inevitably also from the same face plate portion (32) here as described in the conventional configuration. Although it will be concentrated in the corner of the inner corner that rises almost at a right angle,
In this case, as is apparent from FIG. 2, the portion corresponding to the same corner corresponds to the base of the rising portion (40a) of the ridge-side forming portion (34), and the first-stage rising portion (40a) The wind and rain concentrated on the base part of () does not have any engaging abutting part on the base part, so it hits the first stage rising part (40a) and its power is sufficient. After being weakened by the water, it bounces upward and flows along the base of this first-stage rising part (40a) in the longitudinal direction, without weakening part of the wind and rain, and along the face plate part (32). The wind and rain that is simply blown to the surface of the flat surface portion (40b), that is, the wind and rain with weak power is again blown to the second stage rising portion (40c) and acts in the same way, so this wind and rain is engaged. Division (46)
Can be properly handled with almost no effect on the eaves side and ridge side corner forming parts (33), (34).
The effect of wind and rain blown up along the face plate portion (32) on the engagement butting portion (46) is sufficiently reduced.

That is, the base of the first-stage rising portion (40a) of the face plate portion (32) does not have the engaging butting portion (46), and the second-stage portion through the first-stage rising portion (40a) does not exist. The engaging butting portion (46) is formed in the portion raised from the rising portion (40c), and the second-stage rising portion (40c) and the falling portion (36) are planarly arranged in series. Since they are flush with each other, the wind and rain after being blown against the first-stage rising portion (40a) and once de-energized easily flow upward beyond the engaging butting portion (46), and , The falling part (3
6) does not exert an upward push-opening action, and at the same time, it flows in the longitudinal direction along the base portion where the engagement butting portion (46) does not exist, and the wind and rain from the engagement butting portion (46), In addition, the infiltration of sand, mud, dust, etc. due to the wind and rain can be effectively eliminated.

In addition, in addition to the base of the first-stage rising part (40a),
At the base of the step rising part (40c), the wind and rain sprayed constantly flows, so that accumulation of sand, mud, dust, etc. on each base is not considered, and after the wind and rain has stopped. There is no possibility that sand, mud, dust, etc. will flow out, so that the dirt on the roof surface can be prevented satisfactorily, and, even if the engagement abutment part (46) causes some capillarity. Even if rainwater invades, this slight amount of rainwater is sufficiently intruded by the first decompression space portion (45a) formed by being connected to the inside of the engaging butting portion (46). It is decompressed and relaxed, and in combination with the subsequent presence of the second decompression space portion (45b), it does not infiltrate further into the interior.

Furthermore, the engagement mode of the eave-side and ridge-side molded parts (33), (34), in other words, in the joint structure according to this embodiment, the falling part (36) of the eave-side molded part (33). Since the lower folded edge (37) of this is folded back to the ridge side as the folded portion (38), sufficient elasticity is given to this folded portion (38), and the elasticity given here is Yotsutte
The contact pressure of the lower turn-up edge (37) of the falling part (36) with respect to the upper turn-up edge (41) of the second-stage rising part (40c) of the ridge-side forming part (34) can be continuously and reliably maintained. it can.

In addition, it is possible to fully absorb the expansion and contraction in the width direction of each thatched roof plate (31) based on the temperature difference of the outside air temperature. (39)
Can be made to fit into the receiving part (42) well and firmly, and there is no fear of causing peeling or other effects between each of the side thatched roof plates (31), and it will be good for a long time. The engagement mode can be retained.

Next, FIG. 3 shows the configuration of the second embodiment as a modification of the aspect of the configuration of the first embodiment described above.

That is, in the configuration of the second embodiment, the step portions (38a) and (42a) are formed at substantially intermediate portions between the folded portion (38) and the receiving portion (42) which are in contact with each other. , The chevron (43a) is formed on the receiving and holding section (43), and the mounting section (4a)
4) is omitted. Also in this case, in addition to the same actions and effects as in the case of the configuration of the first embodiment, infiltration of rainwater due to the above-mentioned capillary phenomenon can be reduced more effectively.

In each of the above-described embodiments, the bending direction of the edge-bending portion (39) is edge-bending, but the same action and effect as described above can be obtained by edge-bending this direction.

〔The invention's effect〕

As described in detail above, according to the present invention, the face plate portion is provided at the central portion in the longitudinal direction, and the eaves side forming portion is provided at one side portion of the face plate portion.
It also has a side thatched roof plate with a ridge-side molded part on the other side.
In the joint structure of the side thatched roof that is configured by mutually engaging and connecting the eaves side molded part of the next stage side thatched roof board to the ridge side formed part of the front side side thatched roof plate, , The falling portion is lowered to form a lower folded edge, and the lower folded edge is folded back to the ridge side to form a folded portion having an edge bent portion at the end, and the ridge side molding portion includes at least the face plate portion. A single first-stage rising portion is raised, and a second-stage rising portion that connects the falling portion with the flat surface portion of the first-stage rising portion is connected as flush as possible to form an upper folded edge. Also, since the upper folding edge is bent toward the ridge side to form the receiving section, and the receiving and holding section is folded back to cover the folding section from this receiving section, it is formed with the side thatched roof plate on the front eaves side. For the molding part fixed on the ridge side, which is fixed by hangings , The eaves side molding of the side thatched roof board on the next ridge side is fitted, the lower folding edge of the falling portion is abutted against the upper folding edge of the rising portion, and the folding portion including the bending portion is received. By a simple operation of allowing the parts to receive, both of them can be engaged and connected to form an intended side-roof structure.

In addition, in the side-roof structure constructed in this way, the upper part,
The engaging butting portion at each folded edge of the lower portion is located at a portion that is raised from the face plate portion via the first step rising portion and the second step rising portion, and the wind and rain blown up along the face plate portion is , After being de-energized by the first-stage rising portion, the force is weakened enough to hit the second-stage rising portion through the flat surface portion, and the engaging butting portion is passed in this state. In this case, the engaging abutting portion is not directly sprayed, and it is effective to prevent wind and rain from the engaging abutting portion and intrusion of sand, mud, dust and the like accompanying the wind and rain. And it can be eliminated in advance.

Further, at the same time, since the rising part and the falling part are made flush with each other as much as possible, it is possible to properly deal with the wind and rain sprayed, and to accumulate these sand, mud, dust, etc., and the accumulation thereof. It is possible to prevent the progress of corrosion and dirt associated with the above, and moreover, because the pressure-reducing space part is constituted by the receiving and holding part inside the engaging butting part, the infiltration pressure of rainwater is effective. By depressurizing it well, even better preventing rainwater from entering the inside, and the rising and falling parts that are butted against each other have sufficient pressure resistance and are strong against snow loads, Although it is often found in cold regions, leakage can be prevented.

Also, in the engagement mode at each of these eaves side and ridge side molding parts,
Since the folded-back portion is formed by folding back from the lower folded edge of the falling portion in the eaves-side molding portion, and the folded-back portion is brought into contact with the receiving portion and held by the receiving and holding portion,
Sufficient elasticity is imparted to this folded-back portion, and by this elasticity, the contact pressure of the lower folded-back edge in the eaves-side molded portion with respect to the upper folded-back edge in the ridge-side molded portion is continuously and reliably retained. At the same time, it becomes easy to form the decompression space on the inner side of the folded-back portion, and due to the presence of the elastic receiving and holding portion in the ridge-side molding portion, the expansion and contraction that doubles as the decompression space portion after that. Since it is possible to form the absorbing part and to attach the lateral thatched roof plate to the receiving and holding part by engaging with a hanging member or the like, the lateral thatched roof plate of each lateral thatched roof plate based on the temperature difference of the outside temperature can be formed. The expansion and contraction in the width direction can be sufficiently absorbed by the receiving and holding portion, and the engagement mode of the eaves side and the ridge side forming portions can be retained for a long period of time. For simple forming of the side of metal steel sheet And can be formed that, manufacturing is extremely easy, it is excellent features, such as can be provided by conventional and not change the price.

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective view showing the structure of a horizontal roofing roof plate according to a first embodiment of a roof joint structure using horizontal roofing roof plates according to the present invention, and FIG. FIG. 3 is an enlarged cross-sectional view showing the connection and engagement state of the eaves side and ridge-side forming parts, and FIG. 3 is a connection member of the eaves-side and ridge-side forming parts according to the second embodiment of the joint structure of the roof. Fig. 4 (a) is a cross-sectional perspective view showing the structure of the horizontal roofing roof plate according to the first conventional example, and Fig. 4 (b) is the same as above. FIG. 5 is an enlarged cross-sectional view showing the connection engagement state of the eaves side and ridge-side formed portions, and FIG. 5 is an enlarged view of the connection engagement state of the same eaves-side and ridge-side formed portions according to the second conventional example. FIG. (31) …… Roofing roofing board, (32) …… Face plate, (33) …… Eaves side forming part, (34) …… Building side forming part, (36) …… Eaves side forming part falling Part, (37) …… Lower folded edge, (38) …… Folded section, (39) …… Bending section, (40a) …… The first-stage rising section of the building side molding section, (40c) …… Building The second step rising part of the side forming part, (40b) ... flat part, (41) ... upper folded edge, (42) ... receiving part, (43) ... receiving holding part, (45a) ... … First depressurized space, (45b)… Second depressurized space, (46)… Engagement butting part.

Claims (1)

[Claims] 1. A horizontal thatched roof plate having a face plate portion at the center in the longitudinal direction, an eaves side forming portion on one side of this face plate portion, and a ridge side forming portion on the other side thereof A joint structure of a thatched roof formed by mutually engaging and connecting the eaves side moldings of the next-tier side thatched roof boards to the ridge-side moldings of thatched roof board , The falling portion is lowered to form a lower folded edge, and the lower folded edge is folded back to the ridge side to form a folded portion having an edge bent portion at the end, and the ridge-side molding portion includes the At least one first from the face plate portion
An upper part where the step rising part is raised and a second step rising part for connecting the falling part to the same level as possible is raised from the flat surface part of the first rising part, and the lower folded edge is abutted. A folding edge is formed, and the upper folding edge is further bent toward the ridge to form a receiving portion that receives the folding portion including the curving portion, and the receiving holding portion covers the folding portion from the receiving portion. A roof joint structure using a lateral thatched roof panel, which is formed by folding back.