JPH028445A - 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:Riser sections 2 are formed on both ends in the direction of the width of a main board 1, coupling curves 3 are formed on the upper ends of the riser sections to make a roofer (A). A coupling joint section 4 consisting of a tongue-like piece 4a projected outward from the water lower side end and inclined upward from the outside and a peripheral side piece 4b of the lower peripheral side of the tongue-like piece 4a is formed on the main board 1. An expansion section 5 capable of interior decorations and provided with a step 5b on the peripheral surface is formed on the coupling joint section 4 of another roofer (A) on the water upper side end. The coupling joint section 4 of another roofer (.A) adjacent to the direction of roof slope is placed on the expansion section 5 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 [Industrial Application Field] The present invention relates to a roof joint structure that can prevent rainwater from entering the joint portion and can satisfactorily absorb thermal expansion and contraction of roof panels.

[Conventional technology and its problems]

Conventionally, there have been various types of metal tile stick roofs, but these roofs can be watertightly connected at the joints between adjacent roof plates in the direction of the roof slope, and are roofs that can be connected watertightly due to changes in outside temperature. Those with a structure that can absorb the thermal expansion and contraction of the board 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 developed the invention by forming rising portions from both ends of the main plate in the width direction, and forming rising portions from the upper ends of the rising portions. A tongue-like piece that projects outward from the lower edge of the main plate of the metal roof plate forming a connecting bent part and slopes outwardly upward, and a tongue-like piece that extends downwardly from the outer periphery of the tongue-like piece. A side piece is formed to form a connecting joint part, and a bulge part is formed on the water side of the main plate, which can be installed in the connecting joint part and has a stepped part with a cross-sectional shape on the outer peripheral surface. A roof joint structure may be constructed in which a connecting joint part on the underwater side of another roof plate adjacent to the roof plate in the roof slope direction is placed on the bulge part on the water side, or in the above structure, the lower surface of the connecting joint part and A deformable joint body is fixed between the upper surface of the stepped portion, or in the above configuration, a deformable joint body is fixed between the lower surface of the connecting joint portion and the upper surface of the stepped portion, In addition, by providing a deformable sub-joint body between the lower surface of the connecting joint part and the groove of the bulging part, the structure can be made extremely simple, and the joint part has good watertightness and absorption of thermal expansion and contraction. ,
This solves the above problem.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 16.

A is a metal roof plate, in which rising parts 2, 2 are formed at both ends in the width direction of a relatively wide main plate 1, and a connecting bent part 3.3 is formed from the upper end of the rising parts 2.2. has been done.

The connecting bent portions 3, 3, specifically, as shown in FIG. 3a, 3a
Trapezoidal bent pieces 3b, 3b are formed closer to the main plate l side, and a vertical piece 3c that is substantially perpendicular to the outer end of the trapezoidal bent pieces 3b, 3b.
, 3c are formed, and from the upper ends of the vertical pieces 3c, 3c,
Resilient pieces 3d, 3d facing outward and having elasticity are formed, respectively.

A cap material B, which will be described later, is fitted onto the connecting bent portions 3, 3 of the roof panels A, A, which are adjacent in the lateral direction.

Further, as shown in FIG. 16, a connecting bent portion 33 consisting of folded pieces 3e, 3e is formed at the upper end of the rising portions 2, 2,
There is also an embodiment in which both ends of the cap material B in the width direction are folded together with the folded pieces 3e, 3e to form a tile bar part.

Both end sides in the longitudinal direction (vertical direction in Figure 1) of the roof sheet A are defined as the under water side and the above water side, and when constructing a roof with the roof sheet A, the roof The upper side of plate A is above water, and the lower side is below water.

Then, from the underwater side end of the main plate 1 of the roof plate A, the main plate 1
A connecting joint portion 4 is formed to protrude outward in the longitudinal direction. In the connecting joint portion 4, a peripheral piece 4b is formed below the outer periphery of a tongue-like piece 4a that is slightly inclined outwardly and upwardly with respect to the main plate 1.

There are various shapes of the tongue-like piece 4a of the connecting joint part 4, such as an arc shape as shown in FIG. 11, a trapezoid shape as shown in FIG. 13, or a trapezoid shape as shown in FIG. As shown in FIG. 14, there is also an embodiment formed in a seven-figure shape. The circumferential piece 4b is small at the root of the tongue 4a and the main plate 1, and is largest at the outer end of the tongue 4a.

Further, a bulge 5 having substantially the same shape as the connecting joint 4 is formed on the water side of the main plate 1 . Specifically, a slanted and flat bulging top surface 5a 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 5a. A stepped portion 5b having a cross-sectional shape that becomes lower outwardly is formed, and a side wall 5c is formed from the outer end of the stepped portion 5b.

An example of the shape of the bulging top surface 5a is the connection joint portion 4.
The shape of the tongue-like piece 4a is the same as that of the embodiment, and may be formed into an arc shape as shown in FIG. 11, a trapezoid shape as shown in FIG. There is an embodiment in which the tongue-shaped piece 4a of the connecting joint part 4 is formed in a 7-shape.
The shape of the bulging top surface 5a is determined to be equal to the shape of . Further, grooves 5d may be formed inside the bulging top surface 5a. It is formed along the outer peripheral shape (the shape of the side wall 5c) of the bulged top surface 5a. A plurality of grooves 5d may be formed on the bulging top surface 5a.

Between the bulge 5 on the water side of the main plate 1 and the water bottom side, intermediate bulges 6, 6. ... are formed at predetermined intervals (first
(See Figure 1). Further, in the short length of the water-side end of the roof board A (approximately 10 cm inside or outside), the rising portions 2, 2 are formed slightly wider outward. Specifically, 2 of the thickness of the roof panel A
It is formed to widen the distance between the two. In addition, the connection bending portion 3.3 at the slight length point is the chevron-shaped bending piece 3b.
Only part of 3b is left and the other parts are removed (see Figures 11 and 12). Also, when the water side of the roof sheet A is overlapped with the water side of another roof sheet A adjacent in the roof slope direction, in the roof slope direction, the lower roof sheet A
The rising portion 22 on the water side of the upper roof sheet A holds the rising portion 2.2 on the water side of the upper roof sheet A, and the chevron-shaped bent pieces 3a, 3a of the connecting bent portion 3 on the water side of the lower roof sheet A are held upward. It is configured to overlap and lock onto the chevron-shaped bent pieces 3a, 3a of the connecting bent part 3.3 on the underwater side of the roof board A.

In this way, the connecting joint part 4 of the underwater side end of the roof plate A adjacent in the roof slope direction is placed on the water side of the main plate 1,
As shown in FIGS. 5 to 8, the upper and lower surfaces of a deformable joint body 7 made of synthetic resin are stuck between the lower surface of the connecting joint portion 4 and the bulge portion 5 on the water side of the main plate 1. It is fixed by gluing or welding.

The joint body 7 is made of a polymer material such as synthetic resin. A material that is easily deformable and watertight is used, and when viewed in plan, has a shape that follows the outer peripheral edge of the lower surface of the tongue-like piece 4a of the connecting joint portion 4 of the roof board A.

Specifically, to describe the process of connecting via the joint body 7, as shown in FIG. 6 etc., first, at a factory etc.
The lower surface of the joint body 7 is connected to the bulge 5 on the water side to the roof plate.
It is fixed on the flat surface of the stepped portion 5b by pasting or welding.

In particular, the height of the joint body 7 is made greater than the height of the bulge 5. In the case of welding, the lower surface of the joint body 7 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 7 provided on the stepped portion 5b of the bulge portion 5 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 8. It is welded to the lower surface of the connecting joint part 4 at an appropriate temperature using a small welding device on-site.

In this way, the adhesive layer 8 is used to weld the joint body 7 to the lower surface of the tongue-shaped piece 4a of the connecting joint part 4, but the adhesive layer 8 performs the adhesive action by applying high heat. ,
Specifically, the adhesive layer 8 is sandwiched between the old blood of the tongue-like piece 4a and the joint body 7, and high heat is applied to the tongue-like piece 4a using a high-temperature welding tool (such as a small welding tool). The joint body 7 is welded to the tongue-shaped piece 4a. The joint body 7 has an adhesive layer 8
Sometimes a simple adhesive is used instead.

Furthermore, as shown in FIGS. 9 and 10, sub-joint bodies 9 are interposed in the grooves 5d, 5d, . The upper end side may be connected and fixed to the lower surface of the connecting joint portion 4 of the longitudinally adjacent roof board A. Specifically, the lower surface of the sub-joint body 9 is welded to the grooves 5d5d, . An adhesive layer 8 is pasted on the upper surface of the sub-joint body 9, if necessary.

After doing so, it is transported to the roofing site.

In roof joint work, the lower surface of the connecting joint part 4 and the upper surface of the sub-joint body 9 are bonded together, if necessary, via the adhesive layer 8, using a small welding device on-site at an appropriate temperature. Wear spring clothes.

Further, as shown in the 15th [IS], the lower surface of the connecting joint portion 4 and the bulging portion 5 may be connected without any intervening object (such as the joint body 7).

B is a metal camping material, and as shown in FIG. 2, it has portions 11 .
11 is integrally formed, and fitting folded edges 12 and 12 are bent inward from both lower ends. Specifically, a hanging portion 1111 is formed from the outer end of the arc-shaped bent pieces 10a, 10a at both ends of the upper surface portion 10, and the arc-shaped bent pieces 10a
, 10a are formed in a size large enough to accommodate the resilient pieces 3d, 3d. In addition, the fitting folded edge 1212
is formed in a semicircular shape inward from both lower ends of the hanging portion 11.11. The fitting folded edge 12.12 is configured to fit into the trapezoidal bent piece 3b3b of the roof board A.

In the figure, 13 is a structural material such as a main building, and 14 is a base material such as a wood wool board.

(Effects of the Invention) In the invention of claim 1, the main plate 1 is formed with rising parts 2, 2 from both ends in the width direction, and a connecting bent part 3.3 is formed from the upper end of the rising parts 22. Main plate 1 of roof plate A manufactured by
A tongue-like piece 4a that projects outwardly from the water-lower side edge of the tongue-like piece 4a and slopes outwardly upward, and a circumferential piece 4b formed below the outer periphery of the tongue-like piece 4a to form a connecting joint part 4; On the water side of the main plate 1, a bulge 5 is formed which can be installed in the connecting joint part 4 and has a cross-sectional step 5b on the outer peripheral surface, and the bulge on the water side of the roof board A is formed. By placing the connecting joint part 4 on the water side of another roof plate A adjacent in the direction of the roof slope on the roof plate 5 to create a connected roof joint structure, first of all, it is possible to improve the rain protection. Second, the joint part can be made stronger.

To explain these effects in detail, the bulge portion 5 on the water side of the main plate 1 of the roof board A has a stepped portion 5b formed on its outer peripheral surface, and the water-side end of the main board 1 of the roof board A has a stepped portion 5b. The connecting joint part 4 is formed so as to protrude further outward, and when the connecting joint part 4 is superimposed on the bulging part 5 of the roof board AA adjacent to the slope direction, the joint part 4 is connected at the stepped part 5b. A gap is formed between the joint part 4 and the bulging part 5, and the gap prevents rainwater from entering and provides good rain protection.

Next, the connecting joint part 4 protrudes outward from the underwater side of the main plate 1 of the roof board A, and the bulging part 5 has a shape corresponding to the connecting joint part 4, 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, A are overlapped and connected, the contact area can be widened, - good rain protection can be achieved, and the bulging portion 5 Then, a tongue-like piece 4a that slopes outwardly upward and a circumferential piece 4b are formed below the outer periphery of the tongue-like piece 4a to synergistically increase the section modulus at the overlapped portion with the connecting joint part 4. This can improve mechanical strength and make a strong joint.

Next, in the invention of claim 2, in the invention of claim 1, the deformable joint body 7 is fixed between the lower surface of the connecting joint portion 4 and the upper surface of the step portion 5b, 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 5b of the bulging portion 5 and the connecting joint portion 4
A deformable joint body 7 is provided on the back side of the roof plate A, and when the roof sheet A undergoes thermal expansion and contraction in the longitudinal direction, the joint body 7 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, a deformable sub-joint body 9 is provided between the lower surface of the connecting joint part 4 and the groove 5d of the bulging part 5. The sub-joint body 9 can firmly fix the roof plates A, A adjacent to each other in the roof slope direction, and the durability of the sub-joint body 9 can be improved.

That is, by forming the groove 5d inside the bulging top surface 5a of the bulging portion 5 and providing the sub-joint body 9 within the groove 5d, the lower part of the sub-joint body 9 forms the groove 5d. Even if the bulging part 5 and the connecting joint part 4 move alternately due to thermal expansion and contraction of the roof panels A, the joint body 7 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 embodiments of the present invention; the first drawing is a schematic plan view of the present invention, the second drawing is a sectional view taken along the line ■-■ of FIG. 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. FIGS. 10 to 10 are cross-sectional views of main parts showing mutual thermal expansion and contraction of the roof sheets, FIG. 11 is a perspective view of the roof sheets, and FIG. 12 is a cross-sectional view of the main parts of the roof sheets.
No. 13 and 14 are partial plan views of a roof plate according to another embodiment of the present invention, FIG. 15 is a cross-sectional view of main parts of another embodiment of the present invention, and FIG. 16 is a structure of the present invention. It is a sectional view of another example of a tile bar part location. A... Roof plate, 1... Main plate,
2... Rising part, 3... Old connecting bent part, 4... Connecting joint part, 4a... Tongue piece, 4b... Circumferential side Fragment, 1 Old bulge, 5
b...Stepped portion, 7...Joint body, 9...Sub-joint body.

Claims (3)

[Claims] (1) Projecting outward from the lower edge of the main plate of the metal roof plate, which has rising parts formed from both ends of the main plate in the width direction, and a connecting bent part formed from the upper end of the rising parts, and A connecting joint portion is formed by forming a tongue-like piece that slopes outwardly upward and a circumferential side piece below the outer periphery of the tongue-like piece; A bulging portion with a stepped portion having an L-shaped cross section is formed on the roof plate, and a connecting joint portion on the water side of another roof plate adjacent in the roof slope direction is placed on the bulging portion on the water side of the roof plate. A roof joint structure characterized by connecting two parts. (2) Projects outward from the lower edge of the main plate of the metal roof plate, which has rising parts formed from both ends of the main plate in the width direction, and a connecting bent part formed from the upper end of the rising parts, and A connecting joint portion is formed by forming a tongue-like piece that slopes outwardly upward and a circumferential side piece below the outer periphery of the tongue-like piece; A bulging portion with a stepped portion having an L-shaped cross section is formed on the roof plate, and a connecting joint portion on the water side of another roof plate adjacent in the roof slope direction is placed on the bulging portion on the water side of the roof plate. A joint structure for a roof, characterized in that a deformable joint body is fixed between the lower surface of the connecting joint part and the upper surface of the stepped part. (3) Projecting outward from the lower edge of the main plate of the metal roof plate, which has rising parts formed from both ends of the main plate in the width direction, and a connecting bent part formed from the upper end of the rising parts, and A connecting joint portion is formed by forming a tongue-like piece that slopes outwardly upward and a circumferential side piece below the outer periphery of the tongue-like piece; A bulging portion with a stepped portion having an L-shaped cross section is formed on the roof plate, and a connecting joint portion on the water side of another roof plate adjacent in the roof slope direction is placed on the bulging portion on the water side of the roof plate. A deformable joint body is fixed between the lower surface of the connecting joint part and the upper surface of the stepped part, and a deformable sub-joint body is fixed between the lower surface of the connecting joint part and the groove of the bulge part. A roof joint structure characterized by the provision of a joint body.