JPH06207448A - Connecting structure for metal roof materials - Google Patents

Abstract

PURPOSE:To avoid the deterioration of the connected section of metal roof materials due to the fatigue thereof, while maintaining sufficient pressing strength for the materials, improve the drainage function of the connected section, realize a similar effect at a connected section in the case where a new metal roof material is laid on an existing old metal material, and make possible the improvement of the appearance of the connected section of old and new materials in particular. CONSTITUTION:Both sides of a fixing bracket metal 2 are bent to form such a downhill bearing surfaces 2a and 2a as sloping down outward. Also, both sides of a fixing presser 3 are bent to form such a downhill pressing surfaces 3a and 3a as sloping down outward. In addition, a connecting section 6a is formed on both ends of a large-sized and approximately flat roof main body 6c laid along a roof surface, in such a way as directed slantingly upward externally. Then, the connecting sections 6a of both metal roof materials 6 and 6 are clamped with the downhill bearing surface 2a of the bracket metal 2 and the downhill pressing surface 3a of the presser 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for metal roofing materials, and more particularly, to a metal roofing material which is sufficiently pressed against the metal roofing material at a connection point of the metal roofing material and which is blown by wind. Strongly suppresses the floating of the metal roof material, and also suppresses the intrusion of rainwater, and also suppresses the rusting of the metal roofing material at the connection point. This relates to a technique for suppressing the generation of dew condensation.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Publication No. 3-17 shown in FIG.
As in Japanese Patent Publication No. 980, the metal fittings 6 ', 6'on both sides are fixed by the fixed metal fitting 2'fixed to the roof base side and the fixed metal fitting 3'connected to the fixed metal fitting 2'. In the connection structure of the metal roofing material to be connected and held, the metal roofing material 6'is formed with the rising pieces 6e 'at both ends of the flat roofing material main portion 6c' and fixed to the fixed bracket 2 '. The height of the connecting portion 6a 'of the metal roofing material 6'which is sandwiched between the pressing metal fitting 3'and the height of the connecting portion 6a' is sufficiently high.
It is intended to avoid the spread of rainwater to the connection. In the figure, 8'is a connection cap.

[0003]

However, in such a structure, in order to prevent rainwater from spreading to the connecting portion 6a 'side, the start-up member formed at the end of the roofing material main portion 6c' is prevented. Since the height of the connecting portion 6a 'is made sufficiently high by the piece 6e', the flat roof material main portion 6 having a large area is provided.
The roof material main body portion 6c 'of the metal roof material 6a' easily floats as shown in FIG. 8 (b) by the negative pressure due to the strong wind blowing along c ', and the roof material main body portion 6c' flaps. However, the pressing force of the metal roofing material 6a 'cannot be sufficiently strong.

Further, in the connection structure of the metal roofing material in FIG. 8A, the metal roofing material 6'is restrained from being blown up, but is pressed within the range of the plate thickness of the fixed pressing metal fitting 3 '. Therefore, in pressing the metal roofing material 6'in the range of the plate thickness as described above, the pressing area is small and the metal roofing material 6'is pressed linearly, and thus the metal roofing material 6'is linearly pressed. However, there is a problem in that the coating film such as the plating layer on the surface of the metal roofing material 6 ′ is rubbed and peeled off due to the fluttering of the metal roofing material 6 ′, and rust is generated at such a position early. Since rust is likely to occur in this way, conventionally, the position of the connecting portion 6a 'must be set high.

In addition, in the connection structure of the metal roofing materials of FIG. 8 (a), hot air under the ceiling below the metal roofing materials 6 ', 6'is generated from the gaps over the entire length of the metal roofing materials 6', 6 '. Due to the temperature difference between the air temperature and the outside air temperature at night, dew condensation occurs on the lower surface of the connection cap 8'which is constructed so as to cover the connection point, and this drops through the gap, where the connection is made. The space below the cap 8'is separately filled with a heat insulating material, which significantly reduces the workability, and since the metal roofing materials 6'and 6'are not connected to each other, after the caving. However, there is a problem that the positioning strength of the metal roofing material is not sufficient.

The present invention is intended to eliminate such problems, and an object of the invention is to make the pressing force of the metal roofing material at the connection portion of the metal roofing material to be sufficient and to blow the wind. It strongly suppresses the floating of the metal roofing material due to lifting, suppresses the peeling of the coating film on the metal roofing material at the connection point, suppresses the rusting of the metal roofing material at the connection point, and suppresses the infiltration of rainwater. In addition, it is another object of the present invention to provide a connecting structure for a metal roofing material, which can enhance the positioning strength of the metal roofing material after the roofing and can suppress the occurrence of dew condensation at the connection point.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a fixed receiving metal fitting 2 fixed to the roof substrate 1 side and a fixed pressing metal fitting 3 connected to the fixed receiving metal fitting 2 are provided on both sides of the metal roofing material 6a,
6b is a connection structure of a metal roofing material for connecting and holding 6b, in which both sides of the fixed bracket 2 are formed with downwardly inclined receiving surfaces 2a, 2a which are inclined downward toward the outside by bending. In the metal roofing material 6 to which the descending inclined pressing surfaces 3a, 3a are formed so as to incline downward toward the outer side by bending, the metal roofing material 6 to be connected is diagonally outward on both sides of the substantially flat roofing material main portion 6c along the roof surface. A connecting portion 6a that is inclined upward is formed, and the connecting portion 6a of both metal roof members 6 and 6 to be connected is provided on the downward inclined receiving surface 2a of the fixed receiving bracket 2 and the downward inclined pressing surface 3a of the fixed pressing metallic member 3. Roofing material main part 6c
It is characterized by being sandwiched in the immediate vicinity of.

Further, a lap connecting portion 6d is formed on the tip side of the connecting portion 6a of the metal roofing member 6, and the lap connecting portions 6d, 6d are face-to-face with the fixed bracket 2 and are lapped over and connected to each other. The overlapping connection portions 6d, 6d are sandwiched between the fixed receiving metal fitting 2 and the fixed pressing metal fitting 3, and the fixed pressing metal fitting 3 and the fixed receiving metal fitting 2 are connected through the bolt 2c including the overlapping connecting portions 6d, 6d. It is characterized by consisting of.

[0009]

[Function] The metal roofing materials 6, 6 to be connected are the connecting portions 6
a and 6a, the down sloped receiving surface 2a of the fixed metal fitting 2 and the down sloped pressing surface 3a of the fixed pressing metal fitting 3 sandwich the large area of the metal roofing material 6 in the immediate vicinity of the flat roof material main portion 6c, A large area and a flat roof material main portion 6c are held in the immediate vicinity with sufficient strength. Then, the flat roof material main portion 6c having a large area receives the levitation force due to the negative pressure to strongly prevent the levitation, and the pressing force of the metal roof material 6 becomes sufficient. In addition, the metal roofing material 6 is sandwiched between the downwardly inclined receiving surface 2a and the downwardly inclined retaining surface 3a, which are bent, as compared with a structure in which the metal roofing material 6 is pressed within the plate thickness range of the fixed pressing metal fitting 3. The peeling of the coating film is avoided, and the generation of rust is avoided while increasing the connection strength at the connection portion of the metal roofing material 6. Further, the fixed pressing metal fitting 3 on the metal roof member 6 is formed with a downward inclined pressing surface 3a, and the rainwater blown into the downward inclined pressing surface 3a is drained by natural flow.

Further, the lap connection portions 6d, 6d are face-to-face contact with the fixed receiving metal fitting 2 so as to be overlapped and connected, and the lap connecting portions 6d, 6d are sandwiched between the fixed receiving metal fitting 2 and the fixed pressing metal fitting 3. , The fixed pressing metal fitting 3 and the fixed receiving metal fitting 2 are overlapped with each other, and the bolts 2c including the connecting portions 6d and 6d are also included.
The metal roofing material after the roofing 6,6
Increase the positional accuracy of each other. Moreover, the overlapping connection portions 6d and 6d of the metal roofing materials 6 and 6 are overlapped and connected to each other to prevent hot air from leaking upward, and the lower surface of the connection cap 8 disposed above the connection portion. This suppresses the occurrence of dew condensation caused by the temperature difference between the inner and outer surfaces of the connection cap 8 due to the hot air hitting.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a cross-sectional view of the connecting portion. The roof is substantially parallel to the length direction of the ridge, and is installed in the purlin 11 of the channel material as the roof base 1 which is erected at proper intervals in the eaves direction. A field board 12 such as a wood wool cement board is laid, and an old metal roofing material 6A is laid on the ground board 12, and such old metal roofing materials 6A and 6A are connected at a roof tile portion B. The new metal roofing materials 6 ... Are laid on the old metal roofing materials 6A and 6A, and the new metal roofing materials 6 and 6 are connected so as to cover the old roof tile bars B. The configuration will be described in detail below.

FIG. 2 (a) shows a fixing bracket 2, which is formed by bending a metal plate into a substantially inverted U-shape, and has mounting pieces 2b formed substantially horizontally at the lower ends of both legs thereof, and descending. The inclined receiving surfaces 2a, 2a are formed by bending. A bolt 2c is projected and fixed to the fixed bracket 2. FIG. 2 (b) shows a fixed pressing member 3, in which the strip plate material is bent into a substantially inverted U shape, and the downward inclined pressing surface 3 is provided at the lower end portions of both leg pieces thereof.
a and 3a are formed by bending. The downwardly inclined holding surface 3a is substantially parallel to the downwardly inclined receiving surface 2a of the fixed bracket 2. A through hole 3c is formed in the upper piece 3b of the fixed pressing member 3. Then, the descending slope pressing surface 3
A rust preventive packing 17 is attached to a so as to suppress the generation of rust on the metal roofing material 6 to be pressed.

FIG. 3 (a) shows a metal roofing material 6,
Polyethylene foam 13 is lined on the back surface if necessary. The metal roofing material 6 has a large area and a flat roofing material main portion 6c, on both ends of which connecting portions 6a are formed, and at the tip thereof, a water return 6b is formed by folding back. Then, as shown in FIG. 1, the fixed roof bracket 2 straddles the old roof tile bar B connecting the existing old metal roofing members 6A, 6A to the roof base 1 with the screw 14 at the mounting piece 2b. It is fixed. Then, the new metal roofing material 6 is laid on the old metal roofing materials 6A, 6A, and the connecting portions 6a, 6a of the metal roofing materials 6, 6 are attached to the descending inclined receiving surfaces 2a, 2a on both sides of the fixed bracket 2. Can be received. Next, the bolt 2c of the fixed receiving metal fitting 2 is connected to the through hole 3c of the fixed pressing metal fitting 3.
And fixing with the nut 15, the connecting portions 6a and 6a of the metal roofing materials 6 and 6 are fixed to the downwardly inclined receiving surfaces of the fixed receiving bracket 2 by the downwardly inclined retaining surfaces 3a and 3a on both sides of the fixed retaining metal fitting 3. It is sandwiched between the downwardly inclined pressing surface 3a of the fixed pressing member 3 and 2a. Then, the connection cap 8 is fitted over the entire length of such a connecting portion. Polyethylene foam 18 is lined on the back surface of the connection cap 8 to prevent dew condensation.

In this way, the metal roofing material 6 to be connected has its downwardly inclined receiving surface 2a of the fixed receiving metal fitting 2 at its connecting portion 6a.
With the downwardly inclined holding surface 2a of the fixed holding metal fitting 3, it is possible to hold the metal roofing material 6 with sufficient strength by sandwiching the large area of the metal roofing material 6 in the immediate vicinity of the flat roofing material main portion 6c. Even if a levitation force due to negative pressure acts on the flat roof main body 6c having a large area, the levitation is strongly prevented, and the metal roofing material 6 can be sufficiently pressed. Moreover, as compared with a structure in which the metal roofing material is pressed within the range of the plate thickness of the fixed pressing bracket, the bent downward inclined receiving surface 2
It is possible to avoid peeling of the coating film of the metal roofing material 6 by sandwiching the surface of the metal roofing material 3a with the downward inclined pressing surface 3a, and avoiding the occurrence of rust while increasing the connection strength at the connection point of the metal roofing material 6. Of. Further, the fixed pressing metal fitting 3 on the metal roofing member 6 is formed with the downward inclined pressing surface 3a, and the rainwater blown into the downward inclined pressing surface 3a is drained by natural flow.

When the new metal roofing material 6 is to be laid on the existing old metal roofing material 6A, the old roof tile bar portion B having a substantially rectangular cross section is provided with downward inclined pressing surfaces 3a and 3a. A connection cap that covers the old roof tile bar B and is fitted along the downward slope pressing surfaces 3a, 3a in order to fit the connecting cap 8 over the fixed pressing bracket 3 and to fit the connecting cap 8 along the downward slope pressing surfaces 3a, 3a. In Fig. 8, a new appearance that cannot be seen in the old roof tile bar B can be revealed, and the old roof tile bar B can be recast to a completely different appearance in the gentle slope appearing over the entire length of the side portion.

FIG. 4 shows another embodiment, in which the connecting bolt 2c penetrates the old roof bar B and is screwed and fixed to the rafter 16 to fix the fixed bracket 2 and the fixed pressing bracket 3. It is something that is done. In such a case, if necessary, the through suspension 19 may be used over the entire length to hold the upper ends of the two metal roof members 6 and 6.

FIG. 5 shows still another embodiment, which is shown in FIG.
In this embodiment, when the inclination of the downwardly inclined pressing surface 3a of the fixed pressing member 3 is made gentle and the inclination is made gentle like this, the connecting portion 6a becomes longer as shown by the phantom line B and the pressing force is reduced. However, the bent portion 6f is provided so as to further resist the levitation force. Moreover, the overlapping connecting portion 6d is formed on the tip side of the connecting portion 6a of the metal roofing material 6. Then, the lap connecting portions 6d, 6d are face-to-face contact with the fixed receiving metal fitting 2 and are lapped and connected astride. Then, these overlapping connection portions 6d, 6d are sandwiched between the fixed receiving metal fitting 2 and the fixed pressing metal fitting 3, and the fixed pressing metal fitting 3 and the fixed receiving metal fitting 2 are also included in the overlapping connecting portions 6d, 6d by the bolt 2c. Through connection.

Therefore, the positional accuracy of the metal roofing members 6 and 6 after the roofing is improved. Moreover, the overlapping connection portions 6d and 6d of the metal roofing materials 6 and 6 are overlapped and connected to each other to prevent hot air from leaking upward, and the lower surface of the connection cap 8 disposed above the connection portion. The generation of dew condensation due to the temperature difference between the inner and outer surfaces of the connection cap 8 due to the hot air hitting the inner surface is suppressed.

FIG. 7 shows still another embodiment, in which the metal roof member 6 is superposed on the tip side of the connecting portion 6a and is connected to the connecting portion 6d.
Is formed, and the connecting bolt 2c is screwed and fixed to the rafter 16 to fix the fixed receiving metal fitting 2 and the fixed pressing metal fitting 3.

[0020]

As described above, according to the present invention, as described above, the fixed receiving bracket is formed with the descending inclined receiving surface which is inclined downward toward the outer side by bending, and the lateral side of the fixed pressing bracket is inclined downward toward the outer side by bending. In a metal roofing material that is connected by forming a downward sloped pressing surface, a connecting portion that is inclined diagonally outward and upward is formed on both sides of a large-sized, substantially flat roofing material main portion along the roof surface. Since the connecting portions of both metal roof materials to be connected are sandwiched by the downwardly inclined receiving surface of the fixed receiving bracket and the downwardly inclined retaining surface of the fixed pressing member in the vicinity of the roof material main portion, the connected metal roofs are connected. At the connecting part, the down sloped receiving surface of the fixed receiving bracket and the down sloped retaining surface of the fixed holding bracket sandwich the large area of the metal roofing material in the immediate vicinity of the flat roofing material main part, and the roofing material main part With sufficient strength Obtain it possible, flat roofing material main body portion having a large area is strongly prevent floating due to the negative pressure, there is an advantage that the pressing strength of the metal roofing can in sufficient. Moreover, since it is clamped in the plane by the downwardly inclined receiving surface and the downwardly inclined pressing surface that are bent as compared with the configuration in which the metal roofing material is pressed within the range of the plate thickness of the fixed pressing metal fitting,
There is an advantage that the peeling of the coating film of the metal roofing material can be avoided, and the occurrence of rust can be avoided while increasing the connection strength at the connection portion of the metal roofing material. Further, the fixed pressing metal fitting on the metal roof material is formed with the downward inclined pressing surface, and there is an advantage that the rainwater blown into the downward inclined pressing surface can be drained by natural flow.

Further, a lap connecting portion is formed on the tip side of the connecting portion of the metal roofing material, and the lap connecting portion is face-contacted with the fixed receiving metal fitting so as to be lapped and connected. Since it is sandwiched between the metal fittings and the fixed pressing metal fittings, and the fixed pressing metal fittings and the fixed receiving metal fittings are overlapped and through connections are made with bolts including the connecting parts, the positional accuracy of the metal roofing materials after the caving is improved. And moreover,
The overlap connection parts of the metal roofing materials are overlap-connected to each other to prevent hot air from escaping upward, and to prevent the hot air from escaping upward, and to prevent the hot air from hitting the lower surface of the connection cap disposed above the connection point. There is an advantage that it is possible to suppress the generation of dew condensation caused by the temperature difference on the outer surface.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2A is a perspective view of a fixed receiving metal fitting, and FIG. 2B is a perspective view of a fixed pressing metal fitting.

3A is a cross-sectional view of a metal roofing material, FIG. 3B is a cross-sectional view of a connection cap, and FIG. 3C is an explanatory view of the action of suppressing the metal roofing material from floating due to negative pressure.

FIG. 4 is a sectional view of another embodiment of the above.

FIG. 5 is a sectional view of still another embodiment of the same.

FIG. 6 is a sectional view of still another embodiment of the same.

FIG. 7 is a cross-sectional view of the above metal roofing material.

8A and 8B show a conventional example, FIG. 8A is a sectional view, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof substrate 2 Fixed receiving metal fitting 2a Downward inclined receiving surface 3 Roof plate 3a Downward inclined pressing surface 6 Metal roofing material 6a Connection part 6c Roofing material main part 6d Lap connection part 8 Connection cap

Claims (2)

[Claims] 1. A fixed bracket that is fixed to the roof substrate side,
A structure for connecting metal roofing materials that connect and hold the metal roofing materials on both sides with the fixed holding metal fittings that are connected to this fixed receiving metal fitting. In the metal roofing material to be connected, the receiving surface is formed, and the descending inclined pressing surface that inclines downward toward the outer side by bending is formed on both sides of the fixed pressing metal fitting, and it is a flat roof material with a large area along the roof surface Connecting parts that are inclined obliquely upward and upward are formed on both sides of the part, and the connecting parts of both metal roof materials to be connected are the downward slope receiving surface of the fixed bracket and the downward slope pressing surface of the fixed holding bracket. A connecting structure for metal roofing materials, which is sandwiched in the immediate vicinity of the roofing material main part. 2. A lap connection part is formed on the tip side of the connection part of the metal roofing material, and the lap connection part is face-contacted with the fixed receiving metal fitting so as to be lapped and connected, and these lap connection parts are fixed. The metal roofing material connection structure according to claim 1, wherein the metal roofing material is sandwiched between the metal fitting and the fixed pressing metal fitting, and the fixed pressing metal fitting and the fixed receiving metal fitting are superposed and connected through bolts including the connecting portion. .