JP2823463B2 - Connection structure of metal roofing material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure for a metal roofing material, and more particularly, to a metal roofing material with sufficient strength for holding a metal roofing material at a connection point of the metal roofing material. Of the metal roofing material at the connection point, and in particular, the rusting of the metal roofing material at the connection point is suppressed. The present invention relates to a technique for suppressing the occurrence of dew condensation.

[0002]

2. Description of the Related Art Conventionally, FIG.
As shown in Japanese Patent Application Laid-Open No. 980, the metal roofing materials 6 ', 6' on both sides are fixed by a fixing metal fitting 2 'fixed to the roof base and a fixing press metal fitting 3' connected to the fixing metal fitting 2 '. In the connection structure of the metal roof material to be connected and held, rising pieces 6e 'are formed at both ends of the roof material main portion 6c' having a large area and flat in the metal roof material 6 ', and are fixed to the fixing bracket 2'. The height of the connecting portion 6a 'of the metal roofing material 6' sandwiched between the holding metal fittings 3 'is sufficiently increased, and the connecting portion 6a' is formed.
The connection is made to prevent the rainwater from spreading to the area. In the figure, reference numeral 8 'denotes a connection cap.

[0003]

However, in the case of such a structure, in order to prevent rainwater from spreading to the connecting portion 6a 'side, a rising portion formed at the end of the roofing material main portion 6c' is used. Since the height of the connection portion 6a 'is sufficiently increased by the piece 6e', the large-area and flat roof material main portion 6
Due to the negative pressure due to the strong wind blowing along c ', the roof material main portion 6c' of the metal roof material 6a 'easily floats as shown in FIG. 8B, and the roof material main portion 6c' flaps. And the pressing force of the metal roofing material 6a 'cannot be sufficiently increased.

Further, in the connection structure of the metal roofing material shown in FIG. 8A, the metal roofing material 6 'is suppressed within the range of the thickness of the fixed holding metal fitting 3' in order to prevent the metal roofing material 6 'from being blown up. In order to press the metal roofing material 6 'in the range of the plate thickness in this manner, the pressing area is small and the metal roofing material 6' is pressed linearly. However, when the metal roofing material 6 'flutters, a coating film such as a plating layer on the surface of the metal roofing material 6' is rubbed and peeled off, and rust is generated at such a location at an early stage. As described above, since rust is easily generated, conventionally, the position of the connection portion 6a 'must be set high.

In addition, in the connection structure of the metal roofing materials shown in FIG. 8 (a), the hot air above the ceiling below the metal roofing materials 6 ', 6' flows from the gaps over the entire length of the metal roofing materials 6 ', 6'. Due to the temperature difference between the ventilated air and the outside air at night or the like, dew condensation occurs on the lower surface of the connection cap 8 ′ which is installed so as to cover the connection point, and this condenses and drips down the gap. The space below the cap 8 'is separately filled with a heat insulating material, which greatly reduces the workability. Further, since the metal roofing materials 6', 6 'are not connected to each other, after the roofing, There is a problem that the positioning strength of the metal roofing material is not sufficient.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem completely, and an object of the present invention is to make the holding strength of a metal roofing material at a connecting portion of the metal roofing material sufficient to blow the wind. Strongly suppresses the rising of the metal roofing material due to lifting, suppresses the peeling of the coating on the metal roofing material at the connection point, suppresses the generation of rust on the metal roofing material at the connection point, and suppresses the infiltration of rainwater In addition, another object of the present invention is to provide a connection structure for a metal roofing material that can increase the positioning strength of the metal roofing material after roofing and can also suppress the occurrence of dew condensation at a connection location.

[0007]

According to the present invention, there is provided a connecting structure for connecting metal roofing members 6 and 6 on both sides with a fixed receiving metal member 2 and a fixing holding metal member 3 which are short in the direction of the eaves. Downwardly inclined receiving surfaces 2a, 2a are formed on both sides of the fixed metal fitting 2 in the eaves direction toward the outside, and are formed between the downwardly inclined receiving surfaces 2a, 2a. A mounting piece 2b for the roof base 1 is formed substantially in the center,
Downward inclined holding surfaces 3a, 3a are formed on both sides of the fixed holding metal member 3 and bent downward toward the outside by bending. On the roofing material 6, connecting portions 6a which are inclined obliquely outward and upward are formed near both side edges of the large flat and substantially flat roofing material main portion 6c along the roof surface. 2b, the fixed metal fitting 2 and the fixed holding metal fitting 3 are fixed to the roof ground 1 by a fixing tool, and the connecting portion 6a of the metal roofing material 6 is fixed to the roof metal fitting 1 by the downward inclined support of the fixed metal fitting 2. The surface 2a and the downwardly inclined holding surface 3a of the fixed holding metal fitting 3 are clamped and fixed ,
A long connection cap 8 is fitted and held on the fitting support portion d of the fixed retainer 3b.

Further, an overlapping connecting portion 6d is formed at the tip end of the connecting portion 6a of the metal roofing material 6, and the overlapping connecting portions 6d, 6d are in contact with the fixed metal receiving member 2 and are overlaid and connected. The overlapping connection portions 6d, 6d are sandwiched between the fixed receiving member 2 and the fixed holding member 3, and the fixed holding member 3 and the fixed receiving member 2 are connected through the bolts 2c including the overlapping connecting portions 6d, 6d. It is characterized by comprising.

[0009]

The metal roofing material to be connected is connected to the connecting portion.
a, 6a, a large area of the metal roofing material 6 and the immediate vicinity of the flat roofing material main portion 6c are sandwiched between the downwardly inclined receiving surface 2a of the fixed metal fitting 2 and the downwardly inclined pressing surface 3a of the fixed holding metal fitting 3, A large area and flat roof material main part 6c is pressed with sufficient strength in the immediate vicinity. Thus, the large-area flat roof material main portion 6c receives the levitation force due to the negative pressure to strongly prevent the surfacing, and the metal roof material 6 has sufficient holding strength. Moreover, since the downwardly inclined receiving surface 2a and the downwardly inclined pressing surface 3a are sandwiched between the bent downwardly inclined receiving surface 2a and the downwardly inclined downwardly pressing surface 3a as compared with the configuration in which the metal roofing material 6 is pressed within the range of the thickness of the fixed holding metal member 3, the metal roofing material 6 Thus, the rust is prevented from being generated while the connection strength of the metal roofing material 6 at the connection point is increased by avoiding the peeling of the coating film. Further, the fixed holding metal fitting 3 on the metal roofing material 6 is formed with a downward inclined pressing surface 3a, and the rainwater blown into the downward inclined pressing surface 3a is drained under natural flow. I
The fixed metal fittings 2 and the fixed holding metal fittings 3 face the building eaves.
Because it is short, the fixing bracket 2 is installed at the approximate center of the eaves
Fix the piece 2b to the roof foundation 1 with a fixture or press
When crossing and positioning, it may intersect
Wailing and misalignment in the direction orthogonal to the eaves direction
Connection of metal roofing materials 6, 6 long in the direction of the eaves, even if it occurs
Is required to have high positional accuracy of the fixing bracket 2.
Eliminating the workability and lengthening the connection cap
In the case of holding 8, a short fixed foot in the building eaves direction
Can be performed without any trouble with the fixture 3, and
The metal fittings 2 are short in the building eaves direction,
6 can be stably mounted.

[0010] The overlapping connecting portions 6d, 6d are in contact with the fixed metal fittings 2 and are superposed and connected to each other over the straddling member. The fixed holding member 3 and the fixed receiving member 2 are overlapped with each other and the bolts 2c including the connecting portions 6d and 6d are overlapped.
The metal roofing material after roofing
Increase the positional accuracy between each other. In addition, the overlapping connection portions 6d of the metal roofing members 6, 6 are connected to each other in an overlapping manner to prevent the hot air from leaking upward, and the lower surface of the connection cap 8 disposed above the connection point. This prevents the occurrence of dew condensation caused by a temperature difference between the inner and outer surfaces of the connection cap 8 due to the hot air.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a cross-sectional view at a connection point. The roof is substantially parallel to the longitudinal direction of the ridge, and is formed on a channel material purlin 11 as a roof base 1 erected at appropriate intervals in the ridge eave direction. A field board 12 such as a wood wool cement board is laid, on which an old metal roofing material 6A is laid, and such old metal roofing materials 6A, 6A are connected at a tile rod portion B. A new metal roofing material 6 is laid on the old metal roofing materials 6A, 6A, and the connection of the new metal roofing materials 6, 6 is performed so as to cover the old tile rod portion B. Hereinafter, the configuration will be described in detail.

FIG. 2 (a) shows a fixed receiving member 2, which is formed by bending a metal plate into a substantially inverted U-shape. The inclined receiving surfaces 2a, 2a are formed by bending. A bolt 2c is projected and fixed to the fixing bracket 2. FIG. 2 (b) shows a fixed holding metal fitting 3, which is formed by bending a strip material into a substantially inverted U-shape, and having a downwardly inclined holding surface 3 at the lower end portions of both leg pieces.
a and 3a are formed by bending. The downwardly inclined pressing surface 3a is formed substantially parallel to the downwardly inclined receiving surface 2a of the fixed metal fitting 2. A through hole 3c is formed in the upper piece 3b of the fixing retainer 3. And the down slope holding surface 3
A rust prevention packing 17 is adhered to a so as to suppress rust from being generated on the metal roofing material 6 to be held down.

FIG. 3A shows a metal roofing material 6.
The back surface is lined with polyethylene foam 13 if necessary. A connecting portion 6a is formed at both ends of a large-area flat roof material main portion 6c of the metal roofing material 6, and a water return 6b is formed at the end by folding. Then, as shown in FIG. 1, the fixing metal fitting 2 straddles the old tile rod portion B connecting the existing old metal roofing materials 6A, 6A, and the fixing piece 2b serves as a fixing tool. It is fixed to the roof foundation 1 with screws 14. Then, a new metal roofing material 6 is laid on the old metal roofing materials 6A, 6A, and the downwardly inclined receiving surfaces 2 on both sides of the fixed bracket 2 are provided.
The connection portions 6a, 6a of the metal roofing materials 6, 6 are received at a, 2a. Next, the through hole 3c of the fixing holder 3 is inserted into the bolt 2c of the fixing holder 2, and is fixed together with the bolt 2c.
And fixed with a nut 15 which constitutes the tool, connecting portions 6a, 6a of the downward slope receiving the fixed pivot bracket 2 metal roofing 6,6 on either side of the downward inclined pressing surface 3a, 3a of the stationary pressing bracket 3 It is clamped between the surface 2a and the downwardly inclined holding surface 3a of the fixed holding member 3. Then, the connection cap 8 is fixedly pressed as shown in FIG.
It is externally fitted to the fitting support 3d formed on the metal fitting 3 . Polyethylene foam 1 on back of connection cap 8
8 is backed to prevent condensation.

As described above, the metal roofing material 6 to be connected is connected to the downwardly inclined receiving surface 2a of the fixed metal fitting 2 at the connecting portion 6a.
The metal roofing material 6 can be held down with sufficient strength by sandwiching the large area of the metal roofing material 6 and the immediate vicinity of the flat roofing material main portion 6c with the downwardly inclined pressing surface 2a of the fixed holding metal fitting 3. Even if a floating force due to a negative pressure acts on the large-area flat roof material main portion 6c, the floating is strongly prevented, and the holding strength of the metal roof material 6 can be made sufficient. Moreover, the downwardly inclined receiving surface 2 is bent as compared with the structure in which the metal roofing material is held down within the range of the thickness of the fixed holding metal.
a and the downwardly inclined pressing surface 3a sandwich the surface of the metal roofing material 6 to prevent the coating film from peeling off, thereby avoiding the generation of rust while increasing the connection strength at the connection location of the metal roofing material 6. It is. Further, the fixed holding metal fitting 3 on the metal roofing material 6 is formed with a downward inclined pressing surface 3a, and rainwater blown into the downward inclined pressing surface 3a is drained under natural flow.

At the connection point when the new metal roofing material 6 is laid on the existing old metal roofing material 6A, the old tile rod portion B having a substantially rectangular cross section has downwardly inclined pressing surfaces 3a, 3a. The connection cap 8 is straddled by the fixed holding metal fitting 3 and externally fitted with the connection cap 8 along the downwardly inclined holding surfaces 3a, 3a. However, the connection cap covering the old tile bar portion B and extending along the downwardly inclined holding surfaces 3a, 3a. In FIG. 8, a new appearance that could not be exhibited by the old tile rod B can be exhibited, and a completely different appearance can be achieved on the gentle slope that appears on the old tile rod B over the entire length of the side.

FIG. 4 shows another embodiment, in which a connection bolt 2c is passed through an old tile bar B and screwed into a rafter 16 to fix the fixing bracket 2 and the fixing retainer 3 together. It is something to do. In such a case, if necessary, the through hanger 19 may be used over the entire length to hold the upper end portions of the metal roofing members 6 and 6.

FIG. 5 shows still another embodiment, and FIG.
When the inclination of the downwardly inclined holding surface 3a of the fixed holding metal fitting 3 in the embodiment of the present invention is made gentle, and in this case, the connecting portion 6a becomes long as shown by the imaginary line A, and the holding force is reduced. However, a bent portion 6f is provided so as to be able to further counter the floating force. In addition, an overlapping connecting portion 6d is formed on the distal end side of the connecting portion 6a of the metal roofing material 6. As a result, the overlapping connection portions 6d, 6d are in contact with the fixed metal fitting 2 and are straddled and connected. Then, these overlapping connection portions 6d, 6d are sandwiched between the fixed metal fitting 2 and the fixed holding metal member 3, and the fixed holding metal member 3 and the fixed metal receiving member 2 are also bolted together with the overlapping connecting portions 6d, 6d with the bolts 2c. It has a through connection.

Thus, the positional accuracy between the metal roofing materials 6, 6 after the roofing is improved. In addition, the overlapping connection portions 6d of the metal roofing members 6, 6 are connected to each other in an overlapping manner to prevent the hot air from leaking upward, and the lower surface of the connection cap 8 disposed above the connection point. 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 is suppressed.

FIG. 7 shows still another embodiment, in which a connecting portion 6d is overlapped on the tip side of a connecting portion 6a of a metal roofing material 6.
Is formed, and the connection bolt 2c is screwed into the rafter 16 to be fixed, so that the fixed receiving member 2 and the fixed holding member 3 are fixed.

[0020]

As described above, the present invention relates to a connection structure of a metal roofing material for connecting and holding metal roofing materials on both sides with a fixed metal fitting and a fixed holding metal being short in the direction of the eaves. Downward slope receiving surfaces are formed on both sides in the eaves direction toward the outer side, and mounting pieces for the roof base are formed between the downwardly sloped receiving surfaces at approximately the center of the fixed metal fittings in the eaves direction, A downwardly inclined holding surface is formed on both sides of the fixed holding metal fitting so as to be inclined downward toward the outside by bending, and a fitting supporting portion for fitting and supporting the connection cap to the fixed holding metal fitting is formed. A connecting portion that is inclined obliquely outward and upward is formed near both side edges of the substantially flat roof material main portion along the large area, and the fixing bracket is fixed or pressed against the roof base at the mounting piece, and the fixing tool is fixed. Fixing bracket and fixing press at Securing the brackets to the roof bed, connecting portions of the metal roofing material are fixed by being sandwiched by downward inclined pressing surface of the downwardly inclined receiving surface and the fixed retainer member fixed pivot bracket, the fitted and the supporting portion of the stationary pressing bracket Since the long connection cap is fitted and held, the metal roofing material to be connected is large at the connection at the downwardly inclined receiving surface of the fixed bracket and the downwardly inclined pressing surface of the fixed holding bracket. The connection part in the immediate vicinity of the roof material main part, which is flat in area, is pinched, and it is possible to hold the roof material main part in the immediate vicinity with sufficient strength, and the large area, flat roof material main part floats due to negative pressure. Powerfully,
There is an advantage that the holding strength of the metal roofing material can be made sufficient. Moreover, since the downwardly inclined receiving surface and the downwardly inclined pressing surface are sandwiched between the bent down inclined receiving surface and the downwardly inclined pressing surface as compared with the structure that holds down the metal roofing material within the range of the thickness of the fixed holding metal, the coating of the metal roofing material is peeled off. Therefore, there is an advantage that the generation of rust can be avoided while increasing the connection strength at the connection portion of the metal roofing material. Furthermore, the fixed holding metal fitting on the metal roofing material has a downward inclined pressing surface, and there is an advantage that rainwater blown into the downward inclined pressing surface can be drained under natural flow. In particular, since the fixed bracket and the fixed holding bracket are short in the direction of the ridge, the fixed bracket is fixed or pressed against the base of the roof with the fixture at the mounting piece at the approximate center of the ridge, and the ridge is positioned. Even if there is a so-called run-out that crosses the eaves direction or a misalignment occurs in the direction perpendicular to the eaves direction, even if the metal roofing material is long in the eaves direction,
The positioning accuracy of the fixing bracket is not required to be high, and the workability is enhanced.When holding a long connection cap, the short holding fixture in the building eaves direction can also be used without trouble, In addition, there is an advantage that the metal roofing material can be stably placed while the fixing bracket is short in the direction of the eaves. In other words, the present invention avoids the requirement for high positional accuracy of the fixing bracket by using the fixing bracket and the fixing holding bracket that are short in the direction of the eaves, thereby connecting and lengthening a long metal roof material. It is possible to stably fit the long connection cap with the short fixing bracket and the fixing holding bracket, and stabilize the mounting support of the metal roofing material even with the short fixing bracket in the ridge eaves direction. Can and metal
By effectively sandwiching and fixing the roofing material, metal roofing material
The feature is that it prevents surfacing .

Further, an overlapping connection portion is formed at the distal end side of the connection portion of the metal roofing material, and the overlapping connection portion is in contact with a fixed metal fitting and is overlapped and connected by straddling. It is sandwiched between the metal fittings and the fixed metal fittings, and the fixed metal fittings and the fixed metal fittings are overlapped with each other and bolted together including the connecting part. Can be done, and
The overlapping connection portions of the metal roofing material are overlapped and connected to each other to prevent the hot air from leaking upward, and to prevent the hot air from hitting the lower surface of the connection cap disposed above the connection point, thereby causing the inside of the connection cap to fall. There is an advantage that the occurrence of dew condensation caused by a temperature difference on the outer surface can be suppressed.

[Brief description of the drawings]

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

FIG. 2A is a perspective view of a fixed metal fitting, and FIG. 2B is a perspective view of a fixed 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 operation explanatory diagram for suppressing floating of the metal roofing material 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 above.

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

FIG. 7 is a cross-sectional view of the same metal roof material.

8A and 8B show a conventional example, in which FIG. 8A is a cross-sectional view, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof base 2 Fixed receiving fixture 2a Downward slope receiving surface 3 Roof plate 3a Downward slope holding surface 6 Metal roofing material 6a Connecting part 6c Roofing material main part 6d Lamination connecting part 8 Connection cap

Claims (2)

(57) [Claims] 1. A connection structure of a metal roofing material for connecting and holding metal roofing materials on both sides with a fixed metal fitting and a fixing holding metal that are short in the direction of the eaves. Downward slope receiving surfaces are formed that slope downward toward the outside, and between these downwardly sloped receiving surfaces, mounting pieces for the roof base are formed at approximately the center of the fixed bracket in the ridge direction, and are bent to both sides of the fixed holding bracket. A downwardly inclined holding surface that is inclined downward toward the outer side is formed, and a fitting support portion that fits and supports the connection cap on the fixed holding metal fitting is formed. The metal roofing material has a large flat and substantially flat roof along the roof surface. Of both sides of the main part
A connecting portion that is inclined obliquely outward and upward is formed in the vicinity, and the fixing bracket is fixed or pressed against the roof foundation at the mounting piece, and the fixing bracket and the fixing holding bracket are fixed to the roof foundation with the fixing tool. , the connecting portion of the metal roofing material is fixed by being held between downward inclined pressing surface of the downwardly inclined receiving surface and the fixed retainer member fixed pivot bracket, connecting cap fitting that is elongated in the fitted and the supporting portion of the stationary pressing bracket A connection structure for a metal roofing material, wherein the connection structure is held. 2. An overlapping connection portion is formed on the distal end side of the connection portion of the metal roofing material, the overlapping connection portion is in contact with a fixed receiving member and is connected in an overlapping manner, and these overlapping connecting portions are fixedly connected. 2. The metal roof material connection structure according to claim 1, wherein the metal roof material is sandwiched between the metal fittings and the fixed metal fittings, and the fixed metal fittings and the fixed metal fittings are overlapped with each other by bolts including the connecting portions. .