JPH0721226B2 - Roof board and its joint structure - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a roof plate manufactured by bending a metal plate and a joint structure thereof.

[Prior art]

FIG. 6 shows a conventional example. The roof plate A ″ is manufactured by bending a steel plate, a galvanized iron plate or other strip-shaped metal plate along the width direction, and the front end portion is folded back to the back side in a U shape and the front seam portion 1 ″ Is formed. Before this, the vertical piece 1b ″ and the lower horizontal piece 1a ″ of the seam 1 ″ are flat plates. The rear end is folded back at an acute angle to form a chevron shape 2 ″ Is formed, and then a gap 6 ″ is formed between the lower end of the seam 2 ″ and the surface of the roof plate A ″. It is placed on the upper part, and after the rear end is engaged so as to cover the fitting part 5 ″ of the mountain-shaped suspension 4 ″ on the seam 2 ″, and the suspension 4 ″ is fixed with the screw 13 or the like. The rear end portion of the roof plate A "is fixed by the hanging member 4". A hook-shaped folded portion 15 is provided at the tip of the fitting portion 5 ″ of the suspension 4 ″, and the tip of the seam portion 2 ″ is inserted and hooked in the folded portion 15 after the roof plate A ″. Furthermore, the front end of the roof plate A ″ is adjacent to the front side of the roof plate A ″.
The lower side piece 1a "of the front seam 1" is inserted into the space 6 "below the rear seam 2" so that the roof is overlapped on the seam 2 "and the hanging member 4". The front end of the plate A ″ was joined to the lower roof plate A ″, and the lower horizontal piece 1a ″ was in contact with the surface of the front roof plate A ″.

[Problems to be Solved by the Invention]

In the prior art, the mountain-shaped fitting portion 5 ″ of the suspension 4 ″ simply holds down the seam portion 2 ″ from the top after the mountain-shape, and the seam portion 2 ″ can be firmly fixed after that. In particular, the roof plate A ″ does not have a rational structure for supporting the force of sliding down to the front side. Hook-shaped folded part 15
However, because of this, the shape of the suspension 4 ″ is complicated, the production efficiency of the suspension 4 ″ is poor, and the production cost is high. Furthermore, after that, it is necessary to insert the tip of the seam portion 2 "into the folded portion 15 of the suspension member 4".
It was difficult to install the rear part on the seam 2 ", and the workability was inferior. Also, the front side of the roof plate A" on the front side was the lower horizontal piece 1a "under the seam 1". Is contacted with the surface of the lower roof plate A ″,
Even if the front end of the roof plate A ″ is stepped on, the lower horizontal piece 1a ″ is firmly supported and has a comparatively large step resistance, but the upper surface of the lower horizontal piece 1a ″ has a rear seam. Since it is separated from the lower end of 2 ″, the front end portion of the roof plate A ″ is lifted or rattling when it is blown up by wind or the like and receives a negative pressure. Since the lower surface of 1a ″ is in contact with the surface of the roof plate A ″, rainwater will enter the joint B ″ between the lower horizontal piece 1a ″ and the surface of the roof plate A ″ due to the capillary phenomenon. There is also a risk that it will flow laterally through the joint B ″ and wet the roof substrate 12, etc. Therefore, as shown in FIG. 5, the present inventor has already completed the rear end of the roof plate A ′ located on the front side. 2'on the front side of the back
And the rear vertical piece 2a 'and the rear vertical piece 2b' of the rear portion 2'are substantially parallel to each other so as to incline forward. And the fitting portion 5 having a substantially inverted U shape of the suspension 4 is fitted to the rear seam portion 2'and a screw 13 is driven into the fixed portion 11 to allow the suspension 4 to move the roof plate A on the front side. 'The rear end is fixed and the front end of the roof plate A'located on the rear side is folded back to the rear side in a substantially U-shape to provide a front seam 1', and the front is below the seam 1 '. The lateral piece 1a 'is inserted below the horizontal piece 3'so that the front shank portion 1'of the rear side roof plate A'is engaged with the shank portion 2'after the front side roof plate A'. Let's go to the front 1 '
The base end of the lower horizontal piece 1a 'is brought into contact with the surface of the front side roof plate A', and the lower horizontal piece 1a 'of the front seam 1'is connected to the horizontal piece 3'of the rear seam 2'. A structure has been developed in which the roof plate A'is joined by abutting it and forming a gap 6 between the lower horizontal piece 1a 'and the surface of the roof plate A'on the front side (actual exploitation 63-). 1848
No. 19). According to this joint structure, the suspension 4 can be fitted to the rear seam 2 ′ by sliding the suspension 4 in parallel from the tilt direction of the rear seam 2 ′, and the suspension 4 can be mounted. Since the work can be performed easily and the rear portion 2'is firmly held by the suspenders 4 being surrounded on three sides, and the shape of the suspenders 4 is also simple. And the cost of the suspension 4 is low, and further, since the rear seam portion 2'and the suspension 4 are inclined so as to incline forward toward the front side, 4, which can effectively support the load of the roof plate A ′, especially the force of the roof plate A ′ attempting to slide down toward the eaves side, and can firmly fix the roof plate A ′. Is. Further, even if the front end of the roof plate A'is stepped on, the load is supported by the vertical piece 1b 'of the front seam 1'and has a large step resistance, so that the roof plate A'has a negative pressure. However, the upper surface of the lower horizontal piece 1a 'is supported by the lower surface of the seam portion 2'at the rear, and has a large blow-up resistance. Further, since a space 6 is formed between the lower horizontal piece 1a 'and the surface of the lower roofing plate A', rainwater may be generated inside the fitting portion B'due to the capillarity due to the space 6. There is no risk of ingress. However, in this conventional example, since the lower horizontal piece 1a 'of the front seam portion 1'is inclined toward the front stage side, that is, the water side, the roof plate A'of the front stage is exposed to strong wind and rain. Rainwater invades along the bottom horizontal piece 1a ', and along the slope the rainwater W also intrudes into the fitting portion B'.
Also, since the horizontal piece 3'of the seam 2'is also inclined to the front side, the rainwater W collects on the horizontal 3 ', drainage is bad, and rust is generated. The present invention has been made in view of the above circumstances, and an object of the present invention is to easily attach a suspension, to simplify the shape of the suspension, and to reliably support the load of a roof plate. In addition, rainwater does not enter the inside of the seam due to the capillary phenomenon, and not only does it have great footing resistance and blow-up strength, but also when rainwater enters the seam joint during strong wind and rain, immediately It is an object of the present invention to provide a roof plate and a joint structure thereof that can be drained to the outside of the fitting portion, rainwater does not collect in the fitting portion, and rust does not occur.

[Means for solving problems]

In the roof panel of the present invention, the front end portion is bent in a substantially U shape toward the back surface side to provide the front seam portion 1, and the rear end portion is bent in a substantially inverted U shape toward the back surface side. In the roof plate provided with the rear seam part 2 for fitting with the seam part 1, in the front, the lower horizontal piece 1a of the seam part 1 is bent upward and the horizontal part 8 in the roof plate is moved toward the rear side. The front vertical piece 2a and the rear vertical piece 2b of the seam part 2 are inclined forward and the roof plate A in the roof plate A is moved backward from the lower end of the front vertical piece 2a. The horizontal piece 3 is formed by projecting a horizontal piece 3 which is inclined downward with respect to the horizontal portion 8, and the roof plate joining structure of the present invention has a front end portion that is bent in a substantially U-shape toward the rear surface side and is bent forward. In addition to providing the seam part 1, the rear end part is bent in a substantially inverted U shape toward the front side, and the rear seam part 2 is fitted to the front seam part 1 to fit the seam. In the front, the lower horizontal piece 1a of the seam portion 1 is bent upward and is inclined downward as it goes backward, and the front vertical piece 2a and the rear vertical piece 2b of the seam portion 2 are tilted forward. Together with the lower end of the front vertical piece 2a, the roof plate A is formed by projecting a horizontal piece 3 which is inclined downward toward the rear toward the rear. Jo of the fitting portion 5 by fitted to secure the rear end of the roof plate a ₁ of the front side, after the goby unit 1 before the roof plate a ₂ of the second-stage of the first-stage shingles a ₁ The lower horizontal piece 1a and the roof plate on the front side of the seam 1 that is fitted to the seam 2 in the front
It is those made in proximity to the horizontal plate 3 of the rear goby portion 2 a lower horizontal piece 1a together to form a gap 6 between the A _1, in which above problems have been solved by these configurations.

[Action]

In the front, the lower horizontal piece 1a of the seam 1 is bent upward, and as it goes rearward, the lower horizontal piece 1a is inclined downward with respect to the horizontal part 8 of the roof plate A, and the rear is a front vertical piece 2a of the seam 2 and the rear. Since the vertical piece 2b is tilted forward and the horizontal piece 3 which is tilted downward with respect to the horizontal portion 8 of the roof plate A is protruded as it goes rearward from the lower end of the front vertical piece 2a, In strong wind and rain,
Even if rainwater enters the seam joint B, it is drained to the outside of the seam joint B along the lower horizontal piece 1a and the horizontal piece 3, and rainwater does not collect in the seam joint B. It does not generate rust.

【Example】

The roof plate A is formed by bending a steel plate, a galvanized iron plate or other strip-shaped metal plate along the width direction. The roof plate A is slightly bent at the front and rear substantially central portions to form an inclined portion 7 and a horizontal portion 8. The front end portion of the roof plate A is bent in a substantially U-shape toward the back surface side and the front is provided with the seam portion 1, and the front portion of the lower lateral piece 1a of the seam portion 1 is curved upward to the front. The lower piece 9 is formed by being inclined downward as it goes rearward, and the tip portion is folded back in a substantially U-shape. The base of the lower horizontal piece 1a projects downward to form a bulge 10. The rear end portion of the roof plate A is bent in a substantially inverted U shape toward the front surface side, and a front seam portion 2 is provided for fitting with the front seam portion 1 and a rear seam portion is provided. The front vertical piece 2a and the rear vertical piece 2b are inclined substantially parallel to each other and are inclined forward, and the horizontal piece 3 which is inclined downward toward the rear from the lower end of the front vertical piece 2a is projected. There is. The horizontal piece 3 is shorter than the upper piece 2c and is spaced from the horizontal portion 8 by a constant distance. The inclination angle θ ₁ of the lower horizontal piece 1a of the front seam portion 1 is made larger than the inclination angle θ ₂ of the horizontal piece 3 of the rear seam portion 2 at the front. After the roof plate A, the suspension 4 for fixing the joint portion 2 is composed of a fitting portion 5 and a fixing portion 11 which are formed in a substantially inverted U shape inclining forward according to the outer peripheral dimension of the rear portion 2. Has become. Thus, the roof plate A is raised from the front side to the rear side, that is, from the eaves side to the ridge side on the roof base 12, and the front end of the rear side roof plate A _{2 is} the front side. Side shingles A ₁
The rear part is engaged with and fixed to the seam part 2 at the front part by the seam part 1, and the rear end part is fixed to the roof substrate 12 by the hanging member 4 fitted to the seam part 2. That is, overlaid so as to cover the goby portion 2 and Tsuriko 4 after shingle A ₁ of the front side of goby unit 1 before the roof plate A ₂ of the second-stage is already Ashi設, shingles A ₂ Is slid rearward, the lower horizontal piece 1a of the front seam 1 is inserted between the horizontal piece 3 and the horizontal part 8 of the seam 2 after the front side roof plate A ₁ , and the front seam 1 is The rear is engaged with the seam 2. After the fitting portion 5 of the hanging member 4 is slid from the upper piece 2c side of the rear seam portion 2 in parallel with the front vertical piece 2a and the rear vertical piece 2b, the rear seam portion 2 is formed.
Is fixed to the roof substrate 12 with screws 13 at the fixing portion 11. As a result, after the roof plate A, the seam portion 2 abuts the fitting portion 5 of the suspender 4 on the three surfaces of the front vertical piece 2a, the rear vertical piece 2b, and the upper piece 2c, and is firmly fixed. In this state, as shown in FIG. 2, the upper surface of the fitting portion 5 of the suspender 4 is the roof plate A ₂ on the rear side.
The stepping strength of the roof plate A is increased close to the lower surface of the.
In addition, the front side of the rear side roof plate A ₂ is a bulge part of the lower horizontal piece 1a of the seam part 1.
10 and the lower piece 9 are close to the horizontal portion 8 of the front side roof plate A ₁ , and together with the vertical piece 1b, the stepping strength near the front seam portion 1 is increased. In addition, the lower horizontal piece 1a of the front seam 1 is the horizontal piece 3 of the rear seam 2
Is close to the front, and the front prevents the floating portion 1 from floating upward due to negative pressure. Here, "proximity" means a state of contact when a load is applied. Further, a void 6 is formed below the lower horizontal piece 1a, and the joint portion B may be formed depending on the capillary phenomenon.
It prevents rainwater from entering the inside. In addition, the front is 1
Since the tip of the lower horizontal piece 1a is folded downward in a substantially U-shape to form the lower piece 9, the rainwater W that has entered the seam joint B is lowered as shown in FIG. It will not be blocked by the piece 9 and will not penetrate inside. In addition, the front is 1
The lower horizontal piece 1a is bent upward and is inclined downward as it goes rearward, and the horizontal piece 3 of the seam 2 is inclined downward as it goes rearward, so Even if the rainwater W sometimes gets over the lower piece 9 and enters the inside of the joint B, as shown in FIG. 3, the rainwater W will flow along the lower piece 9 and the lower horizontal piece 1a at the joint B. It is drained to the outside, rainwater W does not accumulate in the seam joint B, and rust does not occur. In addition, since the inclination angle θ ₁ of the lower horizontal piece 1a of the front seam ₁ is made larger than the inclination angle θ ₂ of the horizontal piece 3 of the rear seam 2 in the front, the tips of the lower horizontal piece 1a and the horizontal piece 3 are A constant gap 14 is formed between the lower side piece 1a and the horizontal piece 3 even if rust occurs on the front end surface which is the cut end, so that the lower horizontal piece 1a does not receive so-called rust and joins by seam. Rust is less likely to occur inside the part B.

【The invention's effect】

According to the present invention, when the suspension is fitted into the rear seam, the rear suspension is fitted in the rear seam by sliding the suspension in parallel from the inclination direction of the seam. Therefore, the work of attaching the suspension can be easily performed. Moreover, after that, the seams are firmly held by being surrounded on three sides by the suspenders. Further, since the shape of the suspension is also simple, the manufacturing is easy and the cost of the suspension is low. Further, since the rear seam and the slant are inclined forward, the slender can effectively support the load of the roof plate, especially the force that the roof plate tends to slide down toward the eaves. The roof plate can be firmly fixed. Also, even if the front end of the roof plate is stepped on, the load is supported by the lower horizontal piece of the front seam and has a high resistance to trampling. Even if the roof plate receives negative pressure, the upper surface of the lower horizontal plate After that, it is supported by the horizontal piece of the seam and has a large blow-up resistance. Furthermore, due to the gap between the lower horizontal piece and the surface of the roof plate, there is no risk of rainwater entering the inside of the seam joint due to the capillary phenomenon. Stronger wind because the rear part is inclined downward with respect to the horizontal part of the roof plate, and the rear horizontal piece is inclined downward with respect to the horizontal part of the roof plate toward the rear. Even if rainwater enters the seam joint during rain, the rainwater is drained outside the seam joint along the lower horizontal piece and the horizontal piece, and rainwater does not collect in the seam joint and rust occurs. There is nothing to do.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the roof panel of the present invention, and FIG.
FIG. 3 is a side sectional view showing an embodiment of the joining structure of the present invention,
FIG. 4 and FIG. 4 are explanatory views showing the same operation, FIG. 5 is a side sectional view showing a conventional example, and FIG. 6 is a side sectional view showing another conventional example. Seam joint, 1 front seam, 1a lower transverse piece, 2 rear seam, 2a front vertical piece, 2b rear vertical piece, 3 horizontal piece, 4 hanger, 5 fit Joint part, 6 is a void,
Reference numeral 9 is a lower piece, and 14 is a gap.

Claims (6)

[Claims] Claim: What is claimed is: 1. A front seam is provided by bending the front end toward the back surface in a substantially U shape, and a front seam is formed by bending the rear end toward the front surface in a substantially inverted U shape. In the roof plate with a rear seam for fitting, the front side of the seam is convexly curved upward and the rear side is directed downward with respect to the horizontal part of the roof plate toward the rear. The front vertical piece and the rear vertical piece of the seam are tilted forward, and the lower part of the front vertical piece goes rearward downward from the lower end of the front vertical piece. A roof plate characterized by being formed by protruding pieces. 2. The roof plate according to claim 1, wherein the front piece of the front seam of the front seam is folded back to form a lower piece. 3. The roof panel according to claim 1, wherein the front side of the lower horizontal piece of the seam has an inclination angle larger than that of the horizontal piece of the rear seam. 4. A front end portion is bent in a substantially U shape toward the back surface side to provide a front seam portion, and a rear end portion is bent in a substantially inverted U shape toward the front surface side to form a front seam portion. A rear seam is provided for mating, and a lower horizontal piece of the seam is convexly curved forward and is inclined downward toward the rear. The vertical piece is tilted forward and the roof plate is formed by projecting a horizontal piece that is tilted downward from the lower end of the front vertical piece toward the rear and rearward. Fit the U-shaped fitting part to fix the rear end of the front side roof plate, and fit the front seam of the rear side roof plate to the seam after the front side roof plate. A joint structure for roof plates, characterized in that a gap is formed between the lower horizontal piece of the front seam and the roof plate on the front side, and the lower horizontal piece is arranged close to the horizontal piece of the rear seam. . 5. The joint structure for a roof panel according to claim 4, wherein the front portion of the lower horizontal piece of the front seam is folded back to form a lower piece. 6. An inclination angle of the lower horizontal piece of the front seam is made larger than an inclination angle of the horizontal piece of the rear seam so that the front side of the lower horizontal piece of the seam and the rear horizontal piece of the seam of the rear seam The roof plate joint structure according to claim 4 or 5, wherein a gap for drainage is formed between the tip part and the tip part.