JPH028447A - Joint construction of roof - Google Patents

Abstract

PURPOSE:To prevent the penetration of rain water and to improve thermal expansion absorbing efficiency by forming a coupling joint section consisting of a tongue-like piece and a peripheral side piece on the water lower side end of a main board of a roofer, forming an expansion section provided with a step on the water upper side end and placing the coupling joint section on the expansion section to couple roofers each other. CONSTITUTION:Angle sections 2 are formed on both ends in the direction of the width of a main board 1 to make a roofer (A). A coupling joint section 3 consisting of a tongue-like piece 3a projected outward from the water lower side end and inclined upward from the outside and a peripheral side piece 3b of the lower peripheral side of the tongue-like piece 3a is formed on the main board 1. An expansion section 4 capable of interior decorations and provided with a step 4b is formed on the coupling joint section 3 of another roofer (A) on the water upper side end. The coupling joint section 3 of another roofer (A) adjacent to the direction of roof slope s placed on the expansion section 4 of the roofer (A). According to the constitution, the penetration of rain water is prevented, and such a joint construction as absorbing thermal expansion of the roofer (A) satisfactorily can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roof joint structure that can prevent the infiltration of rainwater at the joint portion and can satisfactorily absorb thermal expansion and contraction of roof shingles.

[Conventional technology and its problems]

Traditionally, metal folded-plate roofs have existed, but adjacent roof plates can be connected watertight at the joints in the direction of the roof slope. Structures that can absorb the thermal expansion and contraction of roof shingles have problems such as being complicated and expensive to construct.

[Means for Solving the Problems] Therefore, in order to solve the above problems, the inventor has conducted extensive research and has proposed the invention as a metal roofing plate in which chevrons are formed from both ends of the main plate in the width direction. From the lower edge of the main plate,
A tongue-like piece protruding outward and sloping outwardly upward, and a circumferential piece formed below the outer periphery of the tongue-like piece to form a connecting joint part, and a connecting joint part on the water side of the main plate. Forming a bulge that can be internalized and has a cross-sectional step on the outer peripheral surface,
The connecting joint part of another roof plate adjacent to the roof plate on the water side in the roof slope direction may be placed on the bulge part on the water side of the roof plate to form a connected roof joint structure, or in the above structure, the connecting joint part of the roof plate may be connected. A deformable joint body is fixed between the lower surface of the connecting joint portion and the upper surface of the stepped portion, or in the above structure, a deformable joint body is fixed between the lower surface of the connecting joint portion and the upper surface of the stepped portion. By fixing the joint and providing a deformable sub-joint body between the lower surface of the connecting joint and the groove of the bulging part, the structure can be extremely simple, and it has good watertightness and absorption of thermal expansion and contraction. This joint part solves the above problems.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 14.

A is a metal roof plate, and has chevron-shaped portions 2, 2 formed at both ends of a relatively wide main plate 1 in the width direction. Specifically, the chevron portions 2, 2 have inclined side pieces 2a formed outward and upward from the widthwise edge of the main plate 1, and the inclined side pieces 2a.
A top surface 2b is formed from the upper end, and a slanted edge 2c is formed outward and downward from the outer end of the top surface 2b.

And the chevron portions 2, 2 of the roof panels A and A adjacent in the width direction.
They are polymerized and this process is repeated to form a roof (see Figures 1 and 2).

Furthermore, in order to facilitate overlapping of the chevron portions 2.2 at the joint locations of adjacent roof sheets AA in the roof slope direction, the sloped side pieces 2a of the chevron portions 2, 2 of the roof sheets A on the water side,
2a may be formed to slightly expand outward.

When the water side of another roof plate A adjacent in the roof slope direction is overlapped with the water side of the roof plate A, the chevron portion 2 of the lower roof plate A in the roof slope direction is overlapped.
The structure is such that the lower side inclined side pieces 2a, 2a of the upper roof board A are held between the two inclined side pieces 2a, 2a.

One end of the roof plate A is on the under water side and the other end is on the water side, and the roof plate A
When building a roof, the upper side of the roof plate A in the slope direction is above water, and the lower side is below water.

Then, to the roof board〇 Main board 1 from the underwater side end of main board 1
A connecting joint portion 3 is formed so as to protrude outward in the longitudinal direction. In the connecting joint portion 3, a circumferential piece 3b is formed below the outer periphery of a tongue-like piece 3a that is slightly inclined outwardly and upwardly with respect to the main plate 1.

There are various shapes of the tongue-like piece 3a of the connecting joint part 3, such as an arc shape as shown in FIG. 12, a trapezoid shape as shown in FIG. 13, or a trapezoid shape as shown in FIG. 1411
There is also an embodiment formed in a v-shape as shown in F.

The circumferential piece 3b is small at the base of the tongue 3a and the main plate 1, and is largest at the outer end of the tongue 3a.

Further, a bulging portion 4 having substantially the same shape as the connecting joint portion 3 is formed on the water side of the main plate 1 . Specifically, a slanted and flat bulging top surface 4a is formed on the main plate 1 from a water side portion of the main plate 1 toward the longitudinal center of the main plate 1, and from the outer peripheral edge of the bulging top surface 4a. A step portion 4b having a cross-sectional shape that becomes lower outwardly is formed, and a side wall 4C is formed from the outer end of the step portion 4b.

An example of the shape of the bulging top surface 4a is the connecting joint portion 3.
The shape of the tongue-like piece 3a is the same as that of the embodiment, and may be formed into an arc shape as shown in FIG. 12, a trapezoid shape as shown in FIG. 13, or a trapezoid shape as shown in FIG. 14. There is an embodiment in which the tongue-like piece 3a of the connecting joint part 3 is formed in a V-shape.
The shape of the bulging top surface 4a is determined to be equal to the shape of . Further, grooves 4d may be formed inside the bulging top surface 4a. It is formed along the outer peripheral shape (the shape of the side wall 4c) of the bulged top surface 4a. A plurality of grooves 4d may be formed on the bulging top surface 4a.

Between the bulge 4 on the water side of the main plate 1 and the water bottom side, an intermediate bulge 5.5. ... are formed at predetermined intervals (first
(See Figure 2). Further, at a short length of the water-side end of the roof board A (approximately 10 cm inside or outside), the sloping side pieces 2a, 2a are formed slightly wider outward. Specifically, the roof panels A are formed so that the distance between them is twice as large as the thickness of the roof panel A.

In this way, on the water side of the main plate 1, the connection joint part 3 of the water bottom side end to the roof plate adjacent in the roof slope direction is placed,
As shown in FIGS. 5 to 8, the upper and lower surfaces of a deformable joint body 6 made of synthetic resin are pasted between the lower surface of the connecting joint portion 3 and the bulge portion 4 on the water side of the main plate 1. It is fixed by gluing or welding.

The joint body 6 is made of synthetic resin such as a polymeric material, and is easily deformable and has watertight properties. It has a shape that follows the outer peripheral edge of the lower surface of the tongue-like piece 3a.

Specifically, to describe the process of connecting via the joint body 6, as shown in FIG. 6 etc., first, at a factory etc.
The lower surface of the joint body 6 is connected to the bulge 4 on the water side of the roof board A.
It is fixed on the flat surface of the stepped portion 4b by pasting or welding.

In particular, the height of the joint body 6 is made larger than the height of the bulge 4. In the case of welding, the lower surface of the joint body 6 is heated to an appropriate temperature using a large welding device installed in the factory. Then, at the roof construction site, the upper surface of the joint body 6 provided on the stepped portion 4b of the bulge portion 4 on the water side of the roof sheet A is attached to the bottom surface of the water side end of the roof sheet A through the adhesive layer 7. It is welded to the lower surface of the connecting joint part 3 at an appropriate temperature using a small welding device on-site.

In this way, the adhesive layer 7 is used to weld the joint body 6 to the upper surface of the tongue-like piece 3a of the connecting joint part 3, but the adhesive layer 7 performs the adhesive action by applying high heat. ,
Specifically, the adhesive layer 7 is sandwiched between the old blood of the tongue-like piece 3a and the joint body 6, and high heat is applied to the tongue-like piece 3a using a high-temperature welding tool (such as a small welding tool). The joint body 6 is welded to the tongue-shaped piece 3a. The joint body 6 has an adhesive layer 7
Sometimes a simple adhesive is used instead.

Furthermore, as shown in FIGS. 9 and 10, a sub-joint body 8 is interposed between the grooves 4d, 4d, . The upper end side may be connected and fixed to the lower surface of the connecting joint part 3 of the longitudinally adjacent roof board A. Specifically, the lower surface of the sub-joint body 8 is
Grooves 4d4d, . . . of the bulging portion 4 are heated at an appropriate temperature.
Welding is done using a large welding device installed at the factory. An adhesive layer 7 is pasted on the upper surface of the sub-joint body 8, if necessary. After doing so, it is transported to the roofing site.

In the roof joint work, the lower surface of the connecting joint part 3 and the upper surface of the sub-joint body 8 are welded at an appropriate temperature using a small welding device on-site, via the adhesive layer 7 if necessary. .

Moreover, as shown in FIG. 11, the lower surface of the connecting joint part 3,
It may be connected to the bulging portion 4 without any intervening material (such as the joint body 6).

Reference numeral 9 in the figure is a receiving metal fitting, and a screw rod 9b is provided at the top of a trapezoidal chevron portion 9a. 10 is structural material such as the main building, 11
is the base material for wood wool board etc.

〔Effect of the invention〕

In the invention of claim 1, the metal roof plate A having the chevron portions 2.2 formed thereon from both ends of the main plate 1 in the width direction protrudes outward from the water-side edge of the main plate 1 and is directed outwardly upward. A connecting joint part 3 is formed by forming a tongue-like piece 3a that is inclined to the side and a circumferential side piece 3b below the outer periphery of the tongue-like piece 3a. In addition, a bulging portion 4 is formed with a stepped portion 4b having a cross-sectional shape on the outer circumferential surface, and the roof plate A
By placing the connecting joint part 3 on the water side of another roof board A adjacent in the direction of the roof slope on the bulge part 4 on the water side of the roof sheet A, the joint structure of the connected roof is realized. It is possible to improve the closing performance, and secondly, the joint portion can be made stronger.

To explain these effects in detail, the bulge portion 4 on the water side of the main plate 1 of the roof board A has a stepped portion 4b formed on its outer peripheral surface, and the water bottom side end of the main board 1 of the roof board A has a step 4b formed on its outer peripheral surface. The connecting joint part 3 is formed so as to protrude further outward, and when the connecting joint part 3 is superimposed on the bulging part 4 of the adjacent roof board AA in the slope direction, the joint part 3 is connected at the stepped part 4b. A gap portion is formed between the joint portion 3 and the bulging portion 4, and the gap portion prevents rainwater from entering and provides good rain protection.

Next, the connecting joint part 3 protrudes outward from the underwater side of the main plate 1 of the roof board A, and the bulging part 4 has a shape corresponding to the connecting joint part 3, and always extends in the direction of the roof slope. Unlike the structure in which the main plates 1.1 of the adjacent roof plates A and A are overlapped and connected, the contact area can be widened, and - a good rain cover can be achieved. The cross-sectional modulus is synergistically increased at the overlapping location of the tongue-shaped piece 3a that slopes outwardly upward and the connecting joint part 3 in which the circumferential side piece 3b is formed below the outer periphery of the tongue-shaped piece 3a. This can improve mechanical strength and create a strong joint.

Furthermore, the present invention has the advantage that a folded-plate roof can be constructed using only the roof panels.

Next, in the invention of claim 2, in the invention of claim 1, the deformable joint body 6 is fixed between the lower surface of the connecting joint portion 3 and the upper surface of the step portion 4b, so that the roof plate A Even if it thermally expands and contracts in the longitudinal direction, in the direction of the roof slope,
The connecting portions of adjacent roof plates AA can be made to be able to cope well with thermal expansion and contraction and have excellent watertightness. That is, the stepped portion 4b of the bulging portion 4 and the connecting joint portion 3
A deformable joint body 6 is provided on the back side of the roof plate A, and when the roof plate A undergoes thermal expansion and contraction in the longitudinal direction, the joint body 6 deforms and absorbs the thermal expansion and contraction. No thermal strain occurs in the joint, and the thermal expansion and contraction can be easily absorbed in the joint.

Further, the present invention has a configuration equivalent to the invention of claim 1, and produces effects equivalent to this.

Next, in the invention of claim 3, in the invention of claim 2, by providing a deformable sub-joint body 8 between the lower surface of the connecting joint part 3 and the groove 4d of the bulging part 4, The sub-joint body 8 can firmly fix the roof plates A and A adjacent to each other in the roof slope direction, and the durability of the sub-joint body 8 can be improved.

That is, by forming the groove 4d inward of the bulging top surface 4a of the bulging portion 4 and providing the sub-joint body 8 within the groove 4d, the lower part of the sub-joint body 8 forms the groove 4d. Even if the bulging part 4 and the connecting joint part 3 move alternately due to thermal expansion and contraction of the roof panels A, the joint body 6 will not fall off easily. It is fixed in a predetermined position and has excellent durability.

Furthermore, the present invention has a configuration equivalent to the invention of claim 2,
The same effect can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a schematic plan view of the present invention, FIG. 2 is a sectional view taken along the line ■-■ of FIG. 1, and FIG. 3 is a cross-sectional view of FIG. 1. FIG. 4 is a perspective view of the present invention, FIG. 5 is a sectional view of a main part of the present invention, FIG. 6 is a sectional view of a main part of another embodiment of the present invention, and FIG. Figures 10 to 10 are sectional views of essential parts showing mutual thermal expansion and contraction of the roof panels, Figure 11 is a sectional view of essential parts of another embodiment of the present invention, Figure 12 is a perspective view of the roof panels, and Figure 13. , FIG. 14 is a partial plan view of a roof panel according to another embodiment of the present invention. A... Roof plate, 1... Main plate,
2... Convex portion, 3... Connecting joint part, 3a... Tongue piece, 3b... Circumferential piece, 4... bulging part, 4b... step part, 4d... groove, 6... joint body, 8... sub-joint body. Patent applicant: Akira Metal Industry Co., Ltd.

Claims (2)

[Claims] (1) A tongue-shaped piece that projects outward from the water-side edge of the main plate of the metal roof plate and has chevron-shaped portions formed from both ends of the main plate in the width direction, and that slopes outward and upward; A circumferential piece is formed below the outer periphery of the shaped piece to form a connecting joint part, and on the water side of the main plate, there is a cross section L on the outer peripheral surface that can be installed in the connecting joint part.
A bulging part with stepped sections in the shape of a roof board is formed, and the connecting joint part of another roof board adjacent to the roof board on the water side in the direction of the roof slope is placed on the bulge part on the water side of the roof board to connect the roof board. The roof joint structure is characterized by: (2) A tongue-shaped piece that projects outward from the water-side edge of the main plate of the metal roof plate and has chevron-shaped portions formed from both ends of the main plate in the width direction, and that slopes outward and upward; A circumferential piece is formed below the outer periphery of the shaped piece to form a connecting joint part, and on the water side of the main plate, there is a cross section L on the outer peripheral surface that can be installed in the connecting joint part.
A bulging part is formed with a stepped part in the shape, and a connecting joint part on the water side of another roof board adjacent in the direction of the roof slope is placed on the bulging part on the water side of the roof board to connect it. A roof joint structure characterized in that a deformable joint body is fixed between the lower surface of the connecting joint portion and the upper surface of the stepped portion. (3) A tongue-like piece that projects outward from the water-side edge of the main plate of the metal roof plate and has chevron-shaped portions formed from both ends of the main plate in the width direction, and that slopes outward and upward; A circumferential piece is formed below the outer periphery of the shaped piece to form a connecting joint part, and on the water side of the main plate, a bulge part that can be installed in the connecting joint part and has a step part with an L-shaped cross section on the outer peripheral surface. The connecting joint part on the underwater side of another roof board adjacent in the direction of the roof slope is placed and connected to the bulge part on the water side of that roof board, and the lower surface of the connecting joint part and the stepped part are connected. A roof joint characterized in that a deformable joint body is fixed between the top surface and a deformable sub joint body is provided between the bottom surface of the connecting joint part and the groove of the bulging part. structure.