JPH0310245Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a connection structure for roof panel materials, and more specifically to a technique for increasing the watertightness of a connection part.

[Background Art] Conventionally, in the connection structure of roof board materials, as shown in FIG. 3, a connecting recess 7' is connected to a connecting convex part 6'.
Since the connection was made by making contact at a deep part of the connection recess 7', the contact part a' which is deep considering the shape of the connection recess 7' and the other contact parts
The length up to b' is short, and the elasticity of the connection recess 7' is not fully utilized, so the elastic contact force is weak and the watertightness is low. Because the surface area is in surface contact over a wide area, rainwater that has easily penetrated into this area continues to be retained over a wide area, and when the mantle is damaged in a part of this wide area, corrosion quickly progresses over a wide area. There was a problem. Moreover, after connection, there is a problem that the connection is not easy because surface contact is made over a wide area.

[Purpose of the invention] The present invention was made in view of these problems, and its purpose is to fully utilize the elastic force of the connecting recess to obtain sufficient watertightness with sufficient springiness. In addition, the contact pressure is increased to prevent rainwater from entering the contact area, and the contact area is in line contact, eliminating the water retention function.
An object of the present invention is to provide a connection structure for roof plate materials that can avoid corrosion due to rainwater at contact points.

[Disclosure of the Invention] The present invention is characterized in that one side end of the roofing material main body 1 is folded upward in a substantially S-shape, and an upper abutting portion 4 is provided at the upper end of the upper horizontal piece 3 of the S-shaped portion 2 to project upward. The upper horizontal piece 3 and the intermediate horizontal piece 5 of the S-shaped part 2 form a connecting convex part 6, and the intermediate horizontal piece 5 of the S-shaped part 2 is connected to the roof material main body 1.
The roof material main body 1 is tilted upward from one end to the other end, and the other end of the roof material body 1 is folded back downward to form a connection recess 7. The horizontal piece 8 is sloped more gently than the slope of the intermediate horizontal piece 5 of the S-shaped part 2, the connecting recess 7 is inserted into the adjacent connecting convex part 6, and the upper contact part 4 is attached to the upper horizontal piece of the connecting recess 7. 9, and a contact portion 10 at the tip of the lower horizontal piece 8 is elastically contacted with the lower surface of the intermediate horizontal piece 5.
With this configuration, the above object has been achieved. In other words, by bringing the upper abutting part 4 into elastic contact with the lower surface of the upper horizontal piece 9 and by bringing the abutting part 10 into elastic contact with the lower surface of the intermediate horizontal piece 5, the elastic displacement ability is exerted over a long range of the connecting recess 7. By applying pressure with sufficient elastic force, the watertightness is greatly improved.
Due to line contact with high surface pressure, water retention at the contact point is suppressed compared to surface contact with low surface pressure, avoiding corrosion at the contact point, and in addition, the S-shaped portion 2 By making the slope of the intermediate horizontal piece 5 steeper and the slope of the lower horizontal piece 8 gentler, the connecting convex portion 6 is made tapered so that connection with the connecting recessed portion 7 can be easily performed. .

Embodiments of the present invention will be described in detail below based on the drawings.

Roofing board material A is a metal plate subjected to rust prevention treatment. One end of the roof material body 1 is folded upward in a substantially S-shape. At the upper end of the upper horizontal piece 3 of the S-shaped part 2, an upper abutting part 4 that projects upward is curved over the entire length. The upper horizontal piece 3 and the middle horizontal piece 5 of the S-shaped portion 2 form a connecting convex portion 6 having a full length. S
The intermediate horizontal piece 5 of the character-shaped portion 2 is inclined upwardly from one end of the roof material body 1 toward the other end. Fixing recess 1 connected to S-shaped part 2
1 is formed. The bottom part 12 of the fixing recess 11 is made substantially parallel to the roof material body 1. A receiving piece 13 is formed at the outer edge of the fixing recess 11 over the entire length. A sloped piece part 14 that climbs and slopes at the other end of the roof material main body 1 is formed over the entire length. The inclination of the inclined piece part 14 is made gentler than that of the intermediate horizontal piece 5 of the S-shaped part 2. The connecting recess 7 is formed by folding back the free end of the inclined piece 14 downward and inward. Connection recess 7
The lower horizontal piece 8 is sloped more gently than the slope of the middle horizontal piece 5 of the S-shaped portion 2. A protruding portion 15 that protrudes downward is formed at the base end of the lower horizontal piece 8 to enhance the elastic displacement ability of the lower horizontal piece 8. The tip of the lower horizontal piece 8 is folded back downward to form a contact portion 10.

As shown in FIG.
6 to the rafters 17, and the connecting concave portion 7 of the roof sheet material A on the ridge side is extrapolated to the connecting convex portion 6 of the roof sheet material A on the eave side for connection. In such a case, the connection protrusion 6
is tapered for easy connection. In the connected state, the upper contact part 4
is in elastic contact with the upper horizontal piece 9 over its entire length in a substantially linear contact state, and the contact portion 10 is elastically in contact with the inner lower surface of the intermediate horizontal piece 5 over its entire length in a substantially linear contact state. In this way, the top contact part 4 and the contact part 10
By elastically displacing the connection recess 7 side over a long range between This sufficiently prevents
Furthermore, the deeper the contact depth between the contact convex portion 6 and the contact concave portion 7, the higher the elastic contact pressure of each can be increased.

And such roof sheet material A is adjacent to the adjacent roof sheet materials A, A in the lateral direction perpendicular to the eave ridge direction.
They are connected by joint 18,
In such a case, when the joint 18 is press-fitted between the protruding portion 15 and the roof material main body 1, the lower horizontal piece 8 is pushed up, and the joint 18 can be easily inserted.
Once the lower horizontal piece 8 that has been pushed up comes into contact with the middle horizontal piece 5, it will not be raised any further, and it can sufficiently withstand wind pressure and the like.

[Effects of the invention] In summary, the present invention makes the upper abutting part formed at the upper end of the upper horizontal piece of the S-shaped part elastically contact the lower surface of the upper horizontal piece of the connection recess, and the contact of the tip of the lower horizontal piece. Since the part is brought into elastic contact with the lower surface of the intermediate horizontal piece, elastic displacement ability can be applied over a long range of the connection recess, and pressure contact can be achieved with sufficient elastic force, resulting in a line contact with increased surface pressure. Because of the contact, watertightness can be greatly improved, and because of the line contact with high surface pressure, water retention at the contact point can be suppressed compared to surface contact with low surface pressure. , corrosion of the contact points can be avoided,
In addition, since the middle horizontal piece of the S-shaped portion has a steeper slope and the lower horizontal piece has a gentler slope, the connecting protrusion can be tapered, making it easier to connect with the connecting recess. There is.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the roofing sheet material of the present invention, Fig. 2 is an enlarged sectional view of the same connected state, and Fig. 3 is a sectional view of the connected state of the conventional example, where 1 is the roofing material body, 2 is S character-shaped part, 3 is the upper horizontal piece, 4 is the upper contact part, 5 is the middle horizontal piece, 6 is the connecting convex part, 7 is the connecting recessed part, 8 is the lower horizontal piece, 9 is the upper horizontal piece material, 10 is the contact part It is.

Claims (1)

[Scope of utility model registration request] One end of the roof material main body is folded upward into a substantially S-shape, and an upper abutting part that projects upward is formed at the upper end of the upper horizontal piece of the S-shaped part, and the upper horizontal piece of the S-shaped part A connecting convex portion is formed with the intermediate horizontal piece, and the intermediate horizontal piece of the S-shaped portion is sloped upward from one end of the roofing material body toward the other end of the roofing material body. Fold the other end of the main body downward to form a connection recess,
The lower horizontal piece of the connecting recess is sloped more gently than the intermediate horizontal piece of the S-shaped part, the connecting recess is extrapolated to the adjacent connecting convex part, and the upper contact part is attached to the lower surface of the upper horizontal piece of the connecting recess. A connection structure for roofing sheets made of resilient contact and a contact portion at the tip of a lower horizontal piece elastically contacting the lower surface of an intermediate horizontal piece.