JPH035463B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a strong heat insulating envelope that has particularly excellent heat insulation performance, can provide good rust prevention at the overlapped end, has excellent durability and watertightness, and has .

[Conventional technology and its problems]

BACKGROUND ART Conventionally, heat insulating enclosures such as various roofs or walls have been constructed using heat insulating building boards made of folded metal building boards with a heat insulating material adhered to the lower surface thereof. As shown in Fig. 8, the overlapping installation configuration of the insulation building board is such that the adjacent insulation building board is attached to the top of one mountain-like part a of the insulation building board, which has the insulation material pasted to the entire lower surface. When applying polymerization to the top of the other mountain-shaped portion b of the board, since the insulation material is pasted, it is not only difficult to perform polymerization, but also the overlapped area often does not adhere well, resulting in a decrease in insulation performance. There was an inconvenience.
In addition, if the insulation material is attached to the sloped edge of the mountain-like part b, rainwater will enter from there, making it difficult to shut down the rain, and the insulation performance of the insulation material containing rainwater will be significantly reduced. It was hot. In addition, as shown in Figure 9, if the insulation material on the upper mountain-shaped part b is appropriately cut and polymerized, polymerization will be easier. There was a gap (several mm to 10-odd mm), which caused dew condensation due to the cold bridging effect. In addition, the sloped edges are often exposed to rainwater and are particularly susceptible to corrosion, resulting in poor rust prevention treatment and reduced durability.

[Means to solve the problem]

Therefore, in the present invention, outwardly upwardly inclined portions are formed on both sides of the bottom portion, a stepped portion is formed above one of the inclined portions, and a narrow top portion is formed outward from the upper end of the stepped portion,
A downwardly sloping edge is formed outward from the outer end of the narrow top, and an upper folded edge is bent from the lower end of the slanted edge so as to be in close contact with the slanted edge, and outward from the upper end of the other slanted portion. A metal construction board having a wide top on one side, a downwardly inclined edge outward from the outer end of the wide top, and a hollow part formed by bending the lower folded edge from the lower end. An insulating construction board with insulation material pasted on the bottom, both sloped parts, step part, narrow top, sloped edge on the narrow top side, and upper folded edge is placed on the structural material, and the insulation construction board is placed on the structural material. Insulating material on the back side of the upper folded edge by overlapping the lower folded edge, sloped edge, and wide top of the insulation construction board adjacent to the step, narrow top, sloped edge, and upper folded edge of the board The insulation envelope is crimped onto the insulation material on the lower surface of the sloped part of the adjacent insulation building board, resulting in particularly excellent insulation performance and extremely good rust prevention at the overlapping edges, resulting in long-term durability. It is possible to improve the strength, watertightness, and strength, and eliminates the above-mentioned drawbacks.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

a sloped portion 2 extending outward and upward from both sides of the bottom portion 1;
2 is formed, and a stepped portion 3 is formed from the upper end of one of the inclined portions 2 (the right side in FIGS. 4, 5, and 7). A specific embodiment of the stepped portion 3 is formed by extending outward from the upper end of the inclined portion 2 in a substantially horizontal or gently inclined manner, and then bending outward and upward in an inclined manner. . The height of one sloped portion 2 plus the stepped portion 3 is the height of the other (fourth)
It is formed at the same height as the inclined portion 2 (on the left in FIGS. 5 and 7). A substantially horizontal narrow top portion 4 is provided outward from the upper end of the stepped portion 3, and a downwardly inclined slanted edge portion 5 is formed outward from the outer end of the narrow top portion 4. An upper folded edge 6 is bent from the lower end of the inclined edge 5, and the inclined edge 5 and the upper folded edge 6 are substantially in close contact with each other. In the embodiment, the cross section of only the portion folded back from the inclined edge 5 is semicircular (see FIG. 5, etc.), or is completely in close contact (see FIG. 4, FIG. 7, etc.). Also,
A wide apex 7 is formed outward (to the left in the figures) from the upper end of the sloped part 2 on the other side of the bottom part 1 (left side in FIGS. 4, 5, and 7), and is actually smaller than the narrow apex 4. It is formed approximately 1 cm to approximately 3 cm larger. A downwardly slanted edge 8 is formed outwardly from the outer end of the wide top 7, and is slightly (about 2 to 5 degrees) steeper than the slope of the sloping portion 2 continuous to the step 3.

A lower folded edge 9 is bent from the lower end of the inclined edge 8, and an appropriate hollow portion 10 is formed between the inclined edge 8 and the lower folded edge 9. When folded back from the inclined edge 8, the cross section at that point also has a semicircular shape. The bottom part 1 sloped part 2, 2 step part 3 narrow top part 4 sloped edge part 5 upper folded edge 6 wide top part 7 sloped edge part 8 lower folded edge 9 is long or suitable in the longitudinal direction of the folded plate. A length of metal construction board is constructed. its bottom 1
If the width is wide, one (see FIGS. 1, 4, and 7) to a plurality of chevron-shaped bulges 11 are formed in a bent manner. The inclined surfaces on both sides of the chevron-shaped bulging portion 11 are formed to be the same as the inclined portion 2 on the wide top portion 7 side, and the upper surface thereof is formed to be the same as the large top portion 7. The bottom portion 1 may be formed flat, or may be formed into a wavy shape by continuously forming low protrusions 1a, 1a, . Sometimes. When the protrusions 1a, 1a, . . . are formed continuously, they may be formed in a straight line in the longitudinal direction (see FIG. 5), or may be formed in a curved shape in the longitudinal direction when viewed from the side. This minimum radius of curvature depends on the height of the inclined part 2 of the construction board, the material of the construction board, the board thickness, etc., but it has been determined from experiments that it is approximately 7~
It is 8m. The other inclined part 2 (Figs. 4 and 5)
(left side in Figures 4, 5, and 7) and the bottom 1 and one side (right side in Figures 4, 5, and 7) of the sloped part 2 step part 3 narrow top 4 sloped edge 5 upper folded edge 6 A heat insulating material 12 such as foamed synthetic resin, glass wool, or wood wool board is attached. The insulation material 1
The construction board with No. 2 is designated as insulation construction board A. 13
is a structural member such as a purlin or a rim, on which a receiving metal fitting 14 is fixed. The receiving fitting 14 has a mountain-shaped portion 1
Bottom portions 14b may be formed at both lower ends of 4a (see FIG. 2), or may be formed in a substantially U-shape when viewed from the side (see FIG. 1).

One slope part 2 step part 3 narrow top part 4 slope edge part 5 upper folded edge 6 of the insulating building board A is a bracket 1
4, its sloped part 2 step part 3 narrow top part 4
On the upper folded edge 6 of the inclined edge 5, the other inclined part 2, wide top part 7, inclined edge 8, lower folded edge 9 of the adjacent heat insulating building board A is placed and superimposed. That is, the inclined edge 8 is placed so that the lower folded edge 9 is housed in the stepped portion 3 (a sealing material is filled and interposed between the stepped portion 3 and the lower folded edge 9 as necessary). ), the wide top part 7 with insulation material 12 is superimposed on the narrow top part 4 with insulation material 12, and the outer surface of the insulation material 12 on the back side of the upper folded edge 6 is the other side of the adjacent insulation building board A. Thermal insulation material 12 on the lower surface of the inclined part 2 of
The narrow top part 4 and the wide top part 7 are crimped to the bracket 14.
A nut 15b is screwed onto the upper bolt 15a (see FIG. 1), or a drill-shaped bolt 16 is screwed (see FIG. 2) to secure the nut 15b, and
In areas other than the bracket 14, as shown in Figures 1 and 3, the narrow top 4 and 7 wide top parts with insulation material 12 are fixed with bolts and nuts 17, and these are repeated in sequence to insulate the roof or wall, etc. The outer enclosure has been roofed (see Figure 1). In the above specification, the narrow width of the narrow apex 4 is a concept term that corresponds significantly to the wide apex 7, and the upper and lower sides of the upper folded edge 6 and the lower folded edge 9 correspond to the upper side. Refers to the concept of folding towards the front or downwards.

〔Effect of the invention〕

In the present invention, outwardly upwardly inclined portions 2, 2 are formed on both sides of the bottom portion 1, a stepped portion 3 is formed above one of the inclined portions 2, and a small width is formed outward from the upper end of the stepped portion 3. A top portion 4 is formed, a downwardly inclined sloped edge 5 is formed outward from the outer end of the narrow top portion 4, and a folded edge 6 above the lower end of the sloped edge 5 is bent and substantially tightly attached to the sloped edge 5. A wide apex 7 is formed outward from the upper end of the other sloped portion 2, a sloped edge 8 is formed outwardly downward from the outer end of the wide apex 7, and a lower folded edge 9 is formed from the lower end. The bottom part of a metal building board bent to form a hollow part 10 1 Both inclined parts 2 and 2 step parts 3 Narrow width top part 4 Slope edge on the narrow width top part 4 side 5 On the back side of each of the upper folded edges 6 A heat-insulating building board A to which a heat-insulating material 12 is attached is placed on the structural member 13, and a heat-insulating building board A adjacent to the stepped portion 3 narrow top portion 4 sloping edge 5 upper folded edge 6 of the heat-insulating building board A is placed on the structural member 13. The lower folded edge 9 slanted edge 8 wide top 7 is overlapped and the heat insulating material 12 on the back side of the upper folded edge 6 is attached to the heat insulating material 12 on the lower surface of the other slanted part 2 of the adjacent heat insulating building board A. By crimping, firstly, the insulation performance of the polymerized part is particularly excellent, and secondly, the rust prevention of the polymerized end is extremely good, which in turn enables long-term quality assurance and makes it extremely durable. Thirdly, it can completely prevent scratches on sloped parts during polymerization construction, etc., fourthly, it can improve watertightness (rain protection), and fifthly, it can reduce dimensional errors in insulation building board A. It has many effects such as being able to be adjusted, being able to be constructed in an orderly and reliable manner, sixthly, increasing the overall strength, and seventhly improving workability.

To explain this effect in detail, by crimping the outer surface of the heat insulating material 12 on the back surface of the upper folded edge 6 with the heat insulating material 12 on the lower surface of the other inclined portion 2, the heat insulating material at that location is compressed by the crimping. The density of the heat insulating material 12 becomes higher, the amount of heat loss through flow can be significantly reduced, and the heat conduction resistance value can be increased, and the lamination of the heat insulating material 12 and the metal plate provides a heat insulating envelope with extremely excellent heat insulation performance. be able to. Furthermore, when the heat insulation performance is excellent, there is no cold bridge part, and the occurrence of dew condensation can be prevented over the entire back surface of the heat insulation building board A, and the soundproofing and sound insulation effects can also be improved. Furthermore, if the heat insulating material 12 is made of non-combustible rock wool or the like, the pressing part can have a fireproof structure that does not easily burn.

In addition, the corrosion of the overlapping part generally starts from the edges, and the battery action corrosion (commonly known as "electrolytic corrosion") quickly spreads to the entire overlapping part, but from the outer edge of the large top 7. By forming the outer downward inclined edge 8 and bending the lower folded edge 9 from the lower end, the end of the lower folded edge 9 simply overlaps and does not fit into the inside of the overlapped part. This allows the edges of the insulation building board A to be extremely resistant to corrosion, and the overlapping part as a whole has excellent corrosion resistance. Durability can be maintained over a long period of time. Insulating envelopes such as roofs with excellent corrosion resistance and durability have recently been in particular demand in the construction industry. The present invention satisfies the requirement for durability with a guarantee of ~20 years. Furthermore, in the present invention, since the heat insulating material 12 is not present at the end where the metal plate overlaps from above, the end of the metal plate and the heat insulating material may separate from each other, or rainwater may enter the heat insulating material from there. This can prevent drawbacks such as a decline in insulation performance. Furthermore, by bending the lower folded edge 9 from the lower end of the inclined edge 8, construction can be carried out without scratches on the surface of the inclined part 2 on the step part 3 side during overlapping construction, and the appearance is extremely good. It can be made to have excellent corrosion resistance. In addition, by bending the lower folded edge 9 from the lower end of the inclined edge 8 to form the hollow part 10, even if the overlap construction is performed, the hollow part 10 will always exist at the overlap location. As a result, the capillary phenomenon of rainwater can be prevented, and the intrusion of rainwater from the ends of the overlapped parts can be reliably blocked, resulting in a heat-insulating envelope with excellent rain-proofing (watertightness). By the way, coil steel sheets, which are the base material for forming conventional construction boards, have a tolerance dimension on the plus side, and when this is used for roll forming,
The ends (slanted edges) of the construction boards are often formed with a wide width, resulting in variations in product dimensions, reducing product value, and the ends of mountain-shaped parts that overlap when constructed. However, in the present invention, only the lower folded edge 9 is widened, and the insulating building board A has a more accurate appearance. This allows construction of a heat insulating enclosure such as a roof or wall in an orderly and reliable manner. In addition, the edges of standard coiled steel plates are generally better rust-proofed than other parts, and by not using a slitter, good rust-proofing can be achieved. In addition, by bending the lower folded edge 9 from the lower end of the inclined edge 8, the section modulus is increased compared to only the inclined edge 8, and the strength of the overlapping end and the entire overlapping portion is significantly strengthened. The lower folded edge 9 of the inclined edge 8 is housed in the stepped portion 3 of the adjacent heat-insulating building board A, thereby providing an elegant appearance and a structure that is strong against wind pressure and the like. Furthermore, when the lower folded edge 9 of the inclined edge 8 is accommodated in the stepped portion 3 in this manner, the outer surface thereof becomes flat, making it difficult for rainwater to enter. In addition, polymerization can be performed simply by placing the material from above, and if a heat insulating material is attached to the back side as in conventional polymerization construction (see Figure 8), polymerization will not adhere even if a worker steps on it. It is possible to provide a heat insulating envelope that is significantly easier to construct than those that are difficult to construct.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the present invention, Fig. 2 is a cross-sectional view of the overlapping attachment part of the receiving metal part, Fig. 3 is a cross-sectional view of the overlapping attachment part of the general part, and Figs. 4 and 5 are for insulation buildings. A perspective view of the board; FIG. 6 is an enlarged bottom sectional view of FIG. 5; FIG. 7 is a perspective view of another embodiment of the insulation building board; FIG.
FIG. 9 is a sectional view of a conventional overlapping attachment portion at a general location. A... Insulating construction board, 1... Bottom, 2... Inclined part, 3... Step, 4... Narrow top, 5, 8... Inclined edge, 6... Upper folded edge, 7... ...Large top, 9...Lower folded edge, 10...Empty part, 1
2...Insulating material, 13...Structural material.

Claims (1)

[Claims] 1. Forming outwardly upward slopes on both sides of the bottom, forming a step above one slope, forming a narrow apex outward from the upper end of the step, and forming an outer edge of the narrow apex. A downwardly slanted edge is formed on the outer side, an upper folded edge is bent from the lower end of the slanted edge so as to be substantially in close contact with the slanted edge, and a large apex is formed outward from the upper end of the other slanted portion. The bottom of the metal construction board, which forms a downwardly sloping edge outward from the outer end of the wide top part, and bends the lower folded edge from the lower end to form a hollow part, and both slanted parts. A heat insulating building board with heat insulating material affixed to the back of each of the steps, the top of the narrow width, the sloped edge on the top side of the narrow width, and the upper folded edge is placed on the structural material, and the step and narrow width of the heat insulating building board are placed on the structural material. The lower folded edge, sloped edge, and wide top of the insulation construction board adjacent to the top, sloped edge, and upper folded edge are overlapped, and the insulation material on the back side of the upper folded edge is used for the adjacent insulation construction. A heat insulating envelope characterized by being crimped to a heat insulating material on the lower surface of the sloped part of the plate.