JPH0650579Y2 - Joint structure of a thatched roof - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a joint structure for a thatched roof, and in particular, an improved thatched roof that prevents rainwater from entering the attic through the gap formed in the joint. It is related to the joint structure of the roof.

[Conventional technology]

A horizontal thatched roof joins both ends of a roof plate body consisting of a long strip in the lateral direction using joint members, and engages parts such as fenders provided at the upper and lower edges of the roof plate body. The upper and lower shingles are joined together via and the roof is raised in order from the bottom to the top.

In the above-mentioned horizontal thatched roof, as a joint member which joins both end edges of the roof plate main body in the lateral direction, Figs.
The configuration shown in the figure is known. Now I will explain this.

In each drawing, 1 is a horizontally long roof plate main body, and 2 is a joint member for connecting left and right roof plate main bodies 1 and 1.

At the upper and lower edges of the roof plate body 1, engaging portions 3 and 4 are formed on the front side and the back side, respectively, which are bent in an aza-fold shape with respect to the plate surface of the roof plate body. The engaging portions 3 and 4 are bent and formed so that they can be locked. Further, on the upper side of the roof plate body 1, there is formed an engaging portion 5 which is subsequently connected to the engaging portion 3 and which is to be nailed to a ground plate or the like. Reference numeral 7 is a bent portion for water return. In addition, a folded-back portion 6 facing the back side is formed at a side edge of the roof plate body 1.

On the other hand, the joint member 2 has a predetermined length and width, and both side edges 8 and 8 are folded back to the front side, and the folded back engagement pieces 9 and 9 are formed.
And a predetermined gap G is formed between the tips of the left and right folded engagement pieces 9, 9. At the upper portion of the folding engagement pieces 9 and 9 thus formed, the gap G between the engagement pieces is formed.
Are partially cut along the line of intersection (cut portion 10) so that Furthermore, the joint member 2 of this part
The bottom plate (11) has a stepped portion (12) formed in a zigzag shape so as to prevent backflow of rainwater and smoothly flow down.

Then, the folded-back portion 6 at the side end of one roof plate body 1 is
The bag-shaped left and right folded engagement pieces 9, 9 of the joint member 2 are inserted into the bag-shaped portion from below so as to embrace them. Next, the folded-back portion 6 on the side edge of the other roof plate body 1
Is engaged with the folded engagement pieces 9, 9 of the joint member 2.

With the above configuration, the roof plate main body which is continuous in the lateral direction with each other
Locking piece as a folded-back part at the joint between 1 and 1
Even if there is no bent part 7 for returning water, there is no risk that rainwater will flow down the bottom plate 11 of the joint member 2 and will reach the attic and be transmitted to the base plate. Is.

[Problems to be solved by the invention]

However, the conventional joint member 2 has the following problems. That is, since the joint member 2 is simply a vertically long rectangular flat plate, when rain and wind blows up from below, the rainwater that has penetrated into the bag-shaped folded-back engaging pieces 9, 9 of the joint member 2 is Despite the presence of the stepped portion 12, there is a drawback that it reaches the upper end edge 13 of the joint member 2 and then turns to the attic to infiltrate a field board or the like.

Further, since the folded engagement pieces 9, 9 of the joint member 2 and the folded portion 6 of the roof plate body 1 are in contact with each other due to the contact between the two flat plates, a minute gap exists between them, and the rainwater that has penetrated into the minute gap is present. However, there is a problem in that, due to the capillary phenomenon, it moves upward and goes over the upper edge 13 of the joint member 2 and wraps around the attic.

An object of the present invention is to provide a joint structure for a side-blown roof that improves the above-mentioned conventional drawbacks.

[Means for solving problems]

In order to achieve the above-mentioned object, the joint structure of a thatched roof according to the present invention has a rectangular metal plate with both side edges folded back to the front side to form a first plate portion 33A, a second plate portion 33B and a third plate, respectively. Forming a folded engagement piece 33 consisting of the portion 33C, the left and right folded engagement pieces 33, 33 are separated by a predetermined distance G ₁ ,
When viewed from the bottom plate 32 that joins the left and right folded engagement pieces 33, 33, the second plate portion 33B includes the first plate portion 33A via the step portions 33d, 33e.
And the third plate portion 33C so as to be spaced apart from each other,
The bottom plate 32 is provided with a joint member 16 which is continuously formed on the upper part of the bottom plate 32 and is bent at a predetermined angle toward the front side to form a hook-shaped rising portion 36. By engaging the folded-back portion 20 formed on the edge of the second folded-back portion 20 and contacting the inner surface of the folded-back portion 20 with one side surface of the second plate portion 33B having the stepped portions 33d, 33e and the third plate portion 33C, Gap G ₂ and G ₃ are formed along the longitudinal direction of the joint member 16 between the other side surface of the second plate portion 33B and the third plate portion 33C and the inner side surface of the folded portion 20. To do.

[Action]

By engaging the folded-back portion of the edge of the roof plate main body with the folded-back engagement piece of the joint member, the roof plate main bodies that are continuous in the lateral direction are connected to each other, and rainwater blown up from below at this joint portion. Is pushed back downward by the hook-shaped rising portion integrally formed on the upper portion of the joint member, and does not enter the attic side. Further, between the folded-back portion of the roof plate main body and the folded-back engaging piece of the joint member, one side surface of the second plate portion and the third plate portion having a step on the inner side surface of the folded-back portion comes into contact with each other. , this second plate portion inner side surface of the other side surface and the folded portion of the third plate portion is a gap G _2, G ₃ is formed, the gap G _2,
Since the G ₃ air layer is formed, rain water is penetrated into these gaps G _2, G ₃ flows down smoothly, without having to move upward by the capillary phenomenon or the like, formation of the hook-shaped rising portion Together with this, the downward water repelling action at the joint is perfected.

〔Example〕

Hereinafter, an embodiment according to the present invention will be described with reference to FIGS.

In the figure, 15 is a roof plate main body according to the present invention, and 16 is a joint member. An upper engaging portion 17 is formed on the upper edge of the roof plate main body 15 along the longitudinal direction, a lower engaging portion 18 is formed on the lower edge, and a U-shape is formed on the back edge of the side edge. A folded-back portion 20 is formed by bending it into a shape. The upper side engaging portion 17 is a rising bent portion 21 that is continuous with the upper edge of the roof plate body 15, a first V-shaped bent portion 22 that is continuous with this, and a second V-shaped bent portion 23 that is continuous with this.
And the extended portion 24 that is continuous with this and the folded portion at the tip
It is formed from 25 and.

Further, the lower engaging portion 18 includes a first bent portion 27 in the back direction which is continuous with the lower edge of the roof plate body 15 and a second bent portion 27 which is continuous with the first bent portion 27.
It is formed of a bent portion 28, an inclined extension portion 29 continuous with the bent portion 28, and a folded portion 30 at the tip thereof.

Next, the joint member 16 is formed by punching a single metal flat plate into a predetermined shape and bending it into a predetermined shape. More specifically, 32 is a bottom plate, and 33 and 33 are return engaging pieces formed by folding back both side edges 34, 34 of the bottom board 32 to the front side of the bottom board 32. The return engaging pieces 33 are the first plate. Consisting of a part 33A, a second plate part 33B and a third plate part 33C,
The tip edges of the left and right folded engagement pieces 33, 33 are provided with a predetermined gap G ₁ therebetween. Also, the second plate portion 33B
Is the first plate portion 33A and the third plate portion 33C via the step portions 33d and 33e.
Higher than the bottom plate 32, and therefore the bottom plate 32
Is formed apart from.

Further, a hook-shaped rising portion 35 is formed continuously with the upper end of the bottom plate 32 and bent toward the front side by a predetermined angle.
On both sides of the hook-shaped rising portion 35, front folding portions 36 that are continuous with the first plate portion 33A are formed. Second plate part
The upper edges of 33B and the third plate portion 33C extend to the inner proximal end portion of the hook-shaped rising portion 35.

Further, an inclined portion 37 and a bent engagement portion 39 are continuously formed on the lower portion of the bottom plate 32. Further, front side turn-back portions 38, which are continuous with the first plate portion 33A, are formed on both sides of the inclined portion 37 and the bending engagement portion 39. Furthermore, a cutout portion 40 cut out in a substantially C-shape when viewed from the front surface of the joint member 16 is provided at the lower end edges of the first plate portion 33A and the second plate portion 33B of the left and right folded engagement pieces 33, 33. Is forming. The bottom plate 32 also has
The bottom plate 32 is reinforced by forming a step between the inside and the outside of the step portion 41 extending in the longitudinal direction.

The joint structure of the thatched roof according to the present invention has the above-mentioned structure, and the joint member 16 is used to connect the roof plate main body 15 in the lateral direction as follows. That is, the roof plate body
Connect the upper end of the folded-back portion 20 of the side edge of 15 to the joint member.
Insert from the lower end notch 40 of the folded engagement piece 33 of 16,
It is to gradually move to the upper side.

In this way, the cross section in the state in which the left and right roof plate main bodies 15, 15 are connected to the joint member 16 is shown in FIG. 2, and the upper and lower engaging portions 17, 18 of the roof plate main body 1 and the joint member 16 are shown. The vertical cross section at the connection with the upper part of the is shown in FIG. 3, and similarly, the vertical cross section at the connection between the upper and lower engaging parts 17, 18 of the roof plate body 1 and the lower part of the joint member 16 is the same as in FIG. Is shown in.

That is, in the upper part of the roof plate main body 15, the tip end of the hook-shaped rising part 36 on the upper part of the joint member 16 is, as shown in FIG.
It is inserted in the gap between 17,18. Therefore, when rainwater is blown up from below through the gap between the folded-back portion 20 of the roof plate main body 15 and the folded-back engagement piece 33 of the joint member 16, the rainwater is smoothly repelled by the hook-shaped rising portion 36. And fall downward.

Further, the second plate portion of the folded engagement piece 33 of the joint member 16.
33B includes the first plate portion 33A and the third plate portion 3 via the step portions 33d and 33e.
Since it is slightly raised with respect to the bottom plate 32 rather than 3C, as a result, as shown in FIG. ₂ , a gap G ₂ is formed between the end portion of the roof plate body 15 and the folded portion 20 and the folded portion engaging piece 33. , G ₃
The rainwater that has entered between the folded engagement piece 33 and the folded portion 20 can smoothly flow downward through the gaps G ₂ and G ₃ . That is, the fifth
Since the folded back engaging pieces 9 of the conventional joint member 2 and the folded back portion 6 of the roof plate body 1 shown in the figures and below have a structure in which the flat plates are in contact with each other, it is easy for them to come into close contact with each other, and therefore the respective folded backs described above. There is a risk that rainwater that has entered between the engaging piece 9 and the folded-back portion 6 will move upward due to the capillary phenomenon and will go around to the attic side through the upper edge 13 of the joint member 2. However, due to the joint structure of the present invention, And, such a problem does not occur.

In the above embodiment, the engaging structure of the upper and lower engaging portions 17 and 18 for connecting the roof plate body 15 in the vertical direction is merely an example, and is not limited to this. It can also be used for the roof plate body 50 shown in FIG.
The upper side engaging portion 51 and the lower side engaging portion 52 of the roof board body 50 are different from the roof board body 15 in structure.

That is, the upper engaging portion 51 is formed by the rising bent portion 53, and the folded portion 55 at the tip via the flat extension portion 54 continuous with the rising bent portion 53. Further, the lower engagement portion 52 is formed by a bent portion 56 in the back direction, and a folded-back portion 58 at the tip via a V-shaped bent portion 57 continuous with the bent portion 56.

Then, the joint member 16 of the present invention is used to connect the roof plate main bodies 50, 50 as shown in FIG.

[Effect of device]

As described above, according to the joint structure for a thatched roof according to the present invention, since the hook-shaped rising portion is formed continuously with the bottom plate at the upper end of the joint member, rainwater is directed downward from the joint portion. When it is blown up from above and flows upward from the gap between the folded engagement piece of the joint member and the folded portion of the roof plate body, it is reliably repelled by the hook-shaped rising portion, rainwater wraps around the attic, and reaches the ground plate. There is no risk of rainwater being transmitted. Further, between the folded engagement piece of the joint member and the folded portion of the roof plate body, gaps G ₂ and G ₃ are formed so that rainwater can flow down, and an air layer is formed there. Rainwater that has flowed into the gaps G ₂ and G ₃ can smoothly flow down, and it is possible to reliably prevent the rainwater from moving upward due to the capillary phenomenon as in the conventional case, and in combination with the hook-shaped rising portion, the rainwater can be prevented. It is possible to surely prevent the risk of wrapping around the attic from the upper end of the joint member. Furthermore, the rainwater that has entered between the folded engagement piece and the folded engagement piece due to the air layer formed by the gaps G ₂ and G ₃ is quickly dried and evaporated, and the rainwater remains for a long time in the same manner as in the conventional case, It is possible to eliminate problems such as rust occurring at the joint.

[Brief description of drawings]

FIG. 1 is a perspective view of a joint structure for a thatched roof according to the present invention, FIG. 2 is a cross-sectional view of a main part, FIG. 3 is an explanatory cross-sectional view of an engaging structure of a roof plate body, and FIG. 4 is a different roof. FIG. 5 is a perspective view of an engaging structure of the plate body, FIG. 5 is a perspective view of a conventional example, FIG. 6 is a side view of the joint member, and FIG. 15 ... Roof plate main body, 16 ... Joint member, 20 ... Folding part, 32 ... Bottom plate, 33 ... Folding engaging piece, 33A ... First plate part, 3
3B ... second plate part, 33C ... third plate part, 36 ... hook-shaped rising part, G
₁ ... Gap.

Claims (1)

[Scope of utility model registration request] 1. A rectangular metal plate having both side edges folded back to the front side to form a folded engagement piece 33 composed of a first plate portion 33A, a second plate portion 33B and a third plate portion 33C, respectively. The second plate portion 33B has stepped portions 33d and 33e as viewed from the bottom plate 32 that separates the left and right turn-back engagement pieces 33, 33 by a predetermined distance G ₁ and joins the left and right turn-back engagement pieces 33, 33. The first plate part 33A and the third plate part 33C are formed to be one step higher than the first plate part 33A and the third plate part 33C, and a hook-shaped rising part 36 is formed continuously on the bottom plate 32 and is bent at a predetermined angle toward the front side. Become a joint member
The left and right folding engaging pieces 33, 33 are engaged with the folding portion 20 formed on the edge of the roof plate body 15, and the step portion 33d, 33e is provided on the inner side surface of the folding portion 20. Second
The plate portion 33B and one side surface of the third plate portion 33C are in contact with each other, so that the second plate portion 33B and the other side surface of the third plate portion 33C and the inner side surface of the folded portion 20 are arranged in the longitudinal direction of the joint member 16. Gap along
Joint structure of a thatched roof with G ₂ and G ₃ formed.