JPH03898B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a locking structure in a locking enclosure that has excellent workability, durability, and extremely good watertightness and strength.

[Conventional technology and its problems]

BACKGROUND ART Conventionally, metal tiled stick enclosures such as roofs or walls have been constructed. This tightening structure (other than the part where the partial hangers are attached) is located at the inner tops a and a on both sides of the architectural board (groove board), as shown by the solid line in Figure 20.
Then, the hanging edges b, b on both sides of the cap material are folded back into a flat shape and crimped. Furthermore, as shown by the dotted line in FIG. 20, the tightening portion is often bent downward. Theoretically, watertight construction is possible with such tightening, but in reality, the inward apexes a, a of the architectural boards often undulate in the longitudinal direction, causing deformation and strain, and as a result, they are not flat. If the folding and crimping process is not performed strongly, a plurality of small gaps where capillary action acts will be formed between the inward apex a and the drooping edge b, making it easy for rainwater to enter the inside. In addition, because the fastening edge has an inward apex a that undulates in the longitudinal direction, it is often exposed to rainwater and is particularly prone to corrosion, resulting in poor rust prevention treatment and reduced durability. There were flaws.

[Means to solve the problem]

Therefore, the present invention forms vertical parts on both sides of the main plate, and forms an upper piece inward from the upper ends of both vertical parts,
Architectural boards with folded edges formed below the inner end of the upper piece are installed at appropriate intervals, and the tops are formed outward from both upper ends of the flat U-shaped part. , a flat U-shaped part of the cap material having hanging parts from both outer ends is fitted between adjacent construction boards,
In addition, both top portions and both hanging portions are fitted onto opposing upper pieces and both end edges of adjacent architectural boards, and the base side of the hanging portion is formed into an arc shape, and is folded downward to form the upper piece and the top portion. and the end edges and the hanging portions are brought into close contact with each other, an appropriate gap is formed between the top piece and the end edge, and both top pieces and both top parts are formed to be inclined outwardly and downwardly. Or, in the configuration of the invention described above, the ends of both hanging portions are brought into contact with the corner points of the vertical portion of the construction board and the upper piece, and an appropriate portion is placed between the upper piece and the hanging portion. Furthermore, in the structure of the invention described above, an arcuate portion is formed that bulges outward in a mountain shape from the lower ends of both hanging portions of the cap material, and the ends of the arcuate portion are 2nd sky in contact with the vertical part surface
In the structure of the invention described above, a folded edge is formed inward from the outer ends of both arcuate parts of the cap material, and the folded edge is brought into contact with the vertical part surface. By forming the second cavity,
It has excellent workability and durability, has extremely good watertightness and strength, and has solved the above problems.

〔Example〕

The first invention, as shown in FIGS. 4 and 16,
The arcuate portion 8 and the folded edge 9, as well as the hollow portion 1
1. The second hollow part 12 etc. are not included as a component, and the upper piece 3
This is a tightening structure of the tightening outer envelope whose main constituent feature is that only an appropriate gap 10 is formed between the edge 4 and the edge 4.

Further, the second invention is that, as shown in FIGS. 5 and 17, the arcuate portion 8, the folded edge 9, the second hollow portion 12, etc. are not used as constituent elements, and the hollow portion 11 is formed. This is a fastening structure of the fastening outer body with the main constituent elements being:

Further, in the third invention, as shown in FIGS. 1, 2, and 18, the folded edge 9 is not used as a component, and the arcuate portion 8, the hollow portion 11, and the second hollow portion 12 are used. This is a fastening structure of the fastening outer body whose main constituent feature is the formation of a fastening structure.

Further, the fourth invention is as shown in FIGS. 6, 13, and 14.
As shown in the figure, this is a tightening structure of the tightening outer envelope whose main components include the formation of an arcuate portion 8, a folded edge 9, a hollow portion 11, and a second hollow portion 12.

Therefore, the members constituting the first to fourth inventions will be explained.

A is a metal construction board, in which vertical parts 2, 2 are formed on both sides of a main board 1, upper pieces 3, 3 are formed inwardly from the upper ends of the vertical parts 2, 2, and the upper pieces 3,
Edges 4, 4 bent in a folded manner are provided below the inner end of 3 (Figs. 1, 7, 1).
(See Figure 3, etc.) It is bent into a substantially arc shape from the upper piece 3 to the end edge 4. The main plate 1 may be simply formed into a flat plate shape (see FIGS. 1 to 7), or may have a bottomed V having a relatively high height in the middle thereof.
A character-shaped portion 1a may be formed (see FIG. 13, etc.). In the case of forming the plate into a flat plate shape, as shown in FIG. 1, it includes continuous formation of low-height ribs perpendicular to the longitudinal direction to form a corrugated shape. The architectural board A having the flat main plate 1 is referred to as a flat plate type. Moreover, the architectural board A having the main board 1 in which the bottomed V-shaped portion 1a is formed is referred to as a folding plate type. Each of the architectural boards A has a main board 1 vertical parts 2, 2
It is composed of upper pieces 3, 3 and edges 4, 4, which are formed by integrally forming a long metal plate using multistage upper and lower forming rolls.

B is a long cap material made of metal, and there are several types.

The first cap material B is shown in FIGS.
As shown in FIG. 6, the component of the first invention has a top portion 6, which extends outward from both upper ends of the flat U-shaped portion 5.
6 is formed, and hanging portions 7, 7 are provided from both outer ends thereof.

As shown in FIGS. 5, 10, and 17, the second cap material B is a component of the second invention, and has a top portion 6,
6 is formed, and drooping portions 7, 7 are provided from both outer ends thereof, and the ends of the drooping portions 7, 7 are slightly bent outward in an arc shape.

As shown in FIGS. 1 to 3, FIG. 11, and FIG. Top portions 6, 6 are formed, and hanging portions 7, 7 are provided from both outer ends thereof, and arcuate portions 8, 8 bulge outward in a mountain shape from the lower ends of both hanging portions 7, 7. It is curved.

As shown in FIGS. 6 and 12 to 14, the fourth cap material B is a component of the fourth invention, and includes a top portion 6, 6 is formed, and hanging portions 7,
7 is provided, and arcuate portions 8, 8 that bulge outward in a mountain shape from the lower ends of both the hanging portions 7, 7 are bent, and are folded back inward from the outer ends of the both arcuate portions 8, 8. The shaped end edges 9, 9 are bent. At this time, the arcuate portion 8 and the folded end edge 9 are formed so as to have an appropriate distance between them.

First, as shown in FIGS. 4 and 16, the fastening structure of the fastening enclosure of the first invention is constructed by separating the construction boards A and A at appropriate intervals (flattened U-shaped portion of cap material B). 5 width), the flat U-shaped portion 5 of the cap material B (see FIG. 9) of the first embodiment is fitted into the gap between the adjacent architectural boards A, and the top portion 6, 6 hanging portions 7, 7 adjacent architectural board A,
The hanging portion 7 is fitted into the opposing upper pieces 3, 3 of A.
Fold the base side downward and press-fit it to the back surface of the edge 4. At this time, the upper piece 3 and the top part 6 are brought into close contact with the edge 4 and the hanging part 7, respectively, and the upper piece 3 and the edge 4 are brought into close contact with each other.
An appropriate spacer portion 10 is formed between the two upper pieces 3, and both top portions 6, 6 of the upper pieces 3, 3 are formed to be inclined outwardly and downwardly. At this time, it goes without saying that the end edge 4 and the hanging portion 7 are also formed to be inclined outwardly and downwardly.

Next, as for the tightening structure of the tightening outer enclosure of the second invention, as shown in FIGS. The flat U-shaped part 5 of the cap material B (see FIG. 10) of the second embodiment is fitted into the gap between the adjacent building boards A, and Architectural board A adjacent to the top portions 6, 6 and hanging portions 7, 7,
The hanging portion 7 is fitted into the opposing upper pieces 3, 3 of A.
Fold the base side downward and press-fit it to the back surface of the edge 4. At this time, the upper piece 3 and the top part 6 are brought into close contact with the edge 4 and the hanging part 7, respectively, and the hanging part 7 is brought into close contact with each other.
The end of the construction board A is brought into contact with the corner of the vertical part 2 and the upper piece 3, and an appropriate hollow part 11 is formed between the upper piece 3 and the hanging part 7. Both upper pieces 3, 3 and both top portions 6, 6 are formed to be inclined outwardly and downwardly. At this time, the end edge 4 and the hanging portion 7 are necessarily formed to have a steeper slope than the slope of the upper piece 3 and the top portion 6.

Next, as the tightening structure of the tightening enclosure of the third invention, as shown in FIG. 1, FIG. 2, and FIG. The flat U-shaped portion 5 of the cap material B of the third embodiment (see Fig. 11) is fitted into the gap between the adjacent architectural boards A, A. together,
In addition, the top portions 6, 6 and the hanging portions 7, 7, etc. are fitted into the opposing upper pieces 3, 3 of the adjacent architectural boards A, A,
The base side of the hanging portion 7 is folded downward and crimped onto the back surface of the edge 4. At this time, the upper piece 3 and the top part 6 are
The edge 4 and the hanging portion 7 are brought into close contact with each other, and the corners of the hanging portion 7 and the arcuate portion 8 are connected to the construction board A.
The vertical part 2 and the upper piece 3 are brought into contact with the corner points, and there is an appropriate space between the upper piece 3 and the hanging part 7.
The end of the arcuate part 8 is brought into contact with the two surfaces of the vertical part to form a second part 11 between the vertical part 2 and the arcuate part 8.
An empty space 12 is formed. The top portions 6, 6 of both upper pieces 3, 3 are formed to be inclined outwardly and downwardly. At this time, the end edge 4 and the hanging portion 7 are necessarily formed to have a steeper slope than the slope of the upper piece 3 and the top portion 6.

Next, as for the tightening structure of the tightening enclosure of the fourth invention, as shown in FIGS. 6, 13, and 14, the construction boards A,
The width of the flat U-shaped portion 5 of the cap material B of the fourth embodiment (see FIG. 12) is attached to the width of the flat U-shaped portion 5 of the fourth embodiment, and the flat U-shaped portion 5 of the cap material B (see FIG. The top parts 6, 6 and the hanging parts 7, 7, etc. are fitted onto the opposing upper pieces 3, 3 of the adjacent architectural boards A, A, and the base side of the hanging part 7 is turned downward. Fold back and edge 4
Crimp on the back side of. At this time, the upper piece 3 and the top part 6 are brought into close contact with the edge 4 and the hanging part 7, respectively, and the corners of the hanging part 7 and the arc part 8 are brought into contact with the vertical part 2 of the building board A. A suitable hollow part 11 is formed between the upper piece 3 and the hanging part 7, and the folded edge 9 is brought into contact with the vertical part 2. The vertical portion 2 and the arcuate portion 8 are in contact with a surface.
A second cavity 12 is formed between the folded edges 9.
The top portions 6, 6 of both upper pieces 3, 3 are formed to be inclined outwardly and downwardly. At this time, the end edge 4 and the hanging portion 7 are necessarily formed to have a steeper slope than the slope of the upper piece 3 and the top portion 6.

The above four fastening structures are fastening structures for the fastening enclosure other than the parts where the partial hanger _C1 is attached, and in order to actually construct the fastening outer enclosure such as a wall or roof, it is necessary to It is necessary to attach it to child C ₁ etc.

In the above four inventions, there are a folding type and a flat plate type, and a corresponding partial hanger _C1 exists.

To describe the partial hanger C ₁ and its necessary members, peripheral members, etc., the partial hanger C ₁ is made of metal, has an appropriate length (approximately 10 cm inside and outside), and has both sides of the U-shaped portion 13a. Upper surface portions 14a, 14b are formed outward from the upper ends, and hanging edges 15a, 15b are integrally formed from the outer ends of the upper surface portions 14a, 14b (see FIG. 8). The corner portion between the upper surface portion 14a and the hanging edge 15a is formed in an arc shape. Reference numeral 16 denotes a chevron-shaped receiving metal fitting, and a bottom portion 16b is integrally formed at the lower end of both inclined sides of the chevron-like portion 16a. The mountain-like part 16a
A through hole or internal thread is provided on the top side of the holder. 17 is a structural material such as a cross beam or a purlin, a frame, 1
8 is a heat insulating material such as wood wool board, foamed synthetic resin, or rock wool. The flat plate type architectural board A (first
To install the partial hanger C ₁ (see diagrams, etc.), install the same architectural boards A, A on the upper surface of the structural material 17 or the heat insulating material 18, etc., with an appropriate distance between them. The U-shaped part 13 of the partial hanger _C1 is placed directly above the structural member 17 of
A is fitted and placed, and the bottom of the U-shaped part 13a and the structural member 17 are fixed with bolts and nuts 19, etc.
And the upper surface portions 14a, 14a hanging edge 15
a, 15a are fitted onto both opposing upper pieces 3, 3 of adjacent architectural boards A, A. In the subsequent processing, the hanging edges 15a, 15a of the partial hanger _C1 are wrapped around the hanging parts 7 of the cap material B, and the tightening structure of the tightening outer enclosure of the first to fourth embodiments is This is done in the same way as the configuration (see Figure 3).

In addition, when installing the folding type construction board A (see Fig. 13, etc.) on the partial hanger _C1, etc., place the construction board A on the chevron bracket 16, and then ，
The facing vertical parts 2 and 2 of A are successively roofed with an appropriate distance between them, and the U of the partial hanger _C1 is
The U-shaped portion 13a is fitted and placed on the interval and the top of the angle-shaped bracket 16, and the bottom of the U-shaped portion 13a and the top of the angle-shaped bracket 16 are fixed with bolts 20 or the like. The subsequent processing is a flat plate type architectural board A.
Roof in the same manner as (see Figure 13). By installing such a partial hanger C at _one location and constructing the above-mentioned locking structure, a locking enclosure such as a roof or a wall is constructed.

In addition, C ₂ is a through-hanger, and the U-shaped part 13
Upper surface portions 14b, 14b are integrally formed outward from both upper ends of b (see FIG. 19). Further, in some cases, hanging edges (not shown) may be integrally formed from the outer ends of both upper surface portions 14b, 14b. The through hanger _C2 is formed to have a cross-sectional shape that is approximately the same size as the partial hanger _C1 . Describing the fastening structure of the fastening outer enclosure that is roofed with the through hangers _C2 , as shown in Fig. 19, the building boards A, Appropriate spacing (U-shaped part 1 of through hanger C ₂
3b width), and the hanger is passed through within the space.
Fit the U-shaped portion 13b of C ₂ , and
The bottom part of the structural member 17 is fixed to the structural member 17 using bolts and nuts 19, and the upper surface parts 14b and 14b are placed on the opposing upper pieces 3 and 3 of the adjacent building boards A and A, respectively. The subsequent work is carried out in the same way as for the _single partial hanger C over the entire length in the longitudinal direction. Furthermore, folding type architectural board A (see Figure 13, etc.)
The installation work for attaching the suspension to the hanger C ₂ etc. through the cord is carried out in substantially the same way as for attaching it to the partial hanger C ₁ etc. as shown in FIG. 15. The locking structure of _{the two} places of the through-hanger C is as follows.
As shown in FIG. 19, a cap material B provided with an arcuate portion 8 and a folded edge 9 was used, but the present invention is not limited to this, and cap materials B as shown in FIGS. 9 to 11 may be used. It may also be used to create a locking structure as shown in FIGS. 16 to 18, for example.

〔Effect of the invention〕

First, the invention described in claim 1 (first claim)
invention), there are vertical parts 2, 2 on both sides of the main plate 1.
, upper pieces 3, 3 are formed inwardly from the upper ends of the vertical parts 2, 2, and end edges 4, 4 are bent downward from the inner ends of the upper pieces 3, 3. The formed architectural boards A were placed side by side at appropriate intervals, a top part 6 was formed outward from both upper ends of the flat U-shaped part 5, and hanging parts 7, 7 were provided from both outer ends of the top part 6. The flat U-shaped part 5 of the cap material B is fitted between the adjacent building boards A, A, and both top parts 6, 6 and both hanging parts 7, 7 are fitted between the adjacent building boards A, A. Both upper pieces 3, 3 are fitted onto both end edges 4, 4, and the base side of the hanging portion 7 is formed into an arc shape, and is folded downward to connect the upper piece 3 and the top portion 6, and the end edge 4 and the hanging portion. portions 7 are brought into close contact with each other, an appropriate gap portion 10 is formed between the upper piece 3 and the edge 4, and both upper pieces 3, 3 and both top portions 6, 6 are formed to be inclined outwardly downward. As a result, firstly, the locking workability is good, and secondly, the rust prevention of the locking part is improved.
As a result, it is possible to guarantee long-term quality, making it extremely durable, thirdly, it has good watertightness (rain protection), and fourthly, it has many effects such as especially good strength. .

To explain these effects in detail, the drooping portion 7
By forming the base side into an arc shape and folding it downward, there is no need for folding and crimping to make it flat, which was conventionally required. However, simply folding it into an arc shape does not require such a large force, and can be formed with a relatively small force, which requires less effort when tightening with a manual tightening machine. Efficient tightening processing can be performed with less work. In addition, with an electric tightening machine, even if the drive source is small, extremely efficient tightening processing can be performed. Furthermore, by folding it in an arc shape, there are almost no cracks or the like at the folded part, and the entire fastened part has excellent corrosion resistance, and its durability can be maintained over a long period of time. In recent years, there has been a particular demand for fastened enclosures such as roofs that have excellent corrosion resistance and are durable.
The present invention satisfies the requirement for durability guaranteed for 10 to 20 years.

Further, by bringing the upper piece 3 and the top part 6 into close contact with each other, and the end edge 4 and the hanging part 7, it is possible to eliminate any room for capillary phenomenon to occur, and furthermore, by bringing the upper piece 3 and the end edge 6 into close contact with each other, it is possible to eliminate the possibility of capillary action.
The part 10 between the two can prevent capillary action and can block rainwater from entering from the tightening area, and even if it is folded flat and crimped as in the past, it will not rain. The present invention has solved these disadvantages.

Further, the base side of the hanging portion 7 is formed into an arc shape and is folded downward to connect the upper piece 3 and the top portion 6 to the end edge 4.
By bringing the and hanging portions 7 into close contact with each other, and by forming both upper pieces 3, 3 and both top portions 6, 6 in an inclined shape toward the outside, a large wind (negative pressure) is applied to the architectural board A. Therefore, even if a force is applied that lifts the main plate 1 of the building board A upward and simultaneously pulls its vertical portion 2 downward, the upper piece 3 will not easily shift downward, and the tightened portion will be Strength can be increased.

Next, the invention described in claim 2 (second claim)
Invention), the ends of both hanging portions 7, 7 of the cap material B in the configuration of the first invention are brought into contact with the corner points of the vertical portion 2 and the upper piece 3 of the building board A, and the upper By forming an appropriate hollow part 11 between the piece 2 and the hanging part 7, in addition to achieving the same effect as the first invention, first of all, the strength of the fastening part is further increased. This provides an extremely strong locking structure, and secondly, it has the effect of improving watertightness (rain protection).

To explain these effects in detail, both the upper pieces 3, 3, and both the top portions 6, 6 are formed to be inclined outwardly downward, and the ends of the both hanging portions 7, 7 are connected to the architectural board A.
Since the vertical part 2 and the top piece 3 are brought into contact with each other at the corner, a large wind pressure (negative pressure) is applied to the building board A, lifting the main board 1 of the building board A upward, and at the same time Even if a force that pulls the vertical portion 2 downward acts, the end of the hanging portion 7
The pressed state is maintained by contacting the corner of the vertical part 2 and the upper piece 3, and the vertical part 2 can be prevented from shifting downward, thereby preventing the tightened part from loosening. Therefore, the strength of the tightened area can be further increased.

Moreover, the hollow part 11 can prevent the capillary phenomenon of rainwater, and can reliably block the intrusion of rainwater from the closing part, thereby providing a closing structure with excellent rain closure (watertightness).

Next, the invention described in claim 3 (third claim)
In the invention), arcuate portions 8, 8 are formed that bulge outward in a mountain shape from the lower ends of the both hanging portions 7, 7 of the cap material B in the configuration of the second invention, and the hanging portions 7 and The corner part 8 is brought into contact with the corner part between the vertical part 2 and the upper piece 3 of the architectural board A, and an appropriate space is left between the upper piece 2 and the hanging part 7.
By forming the second hollow part 12 by forming the second hollow part 12 by contacting the end of the arcuate part 8 with the two surfaces of the vertical part, the second invention has the same effect as the second invention.
The hollow part 12 can also prevent capillary action of rainwater, and together with the hollow part 11, a double rainwater infiltration blocking structure can be formed, providing a structure with extremely excellent rain sealing (watertightness). In addition, since the end of the arcuate portion 8 was brought into contact with the two vertical portions, a large wind pressure (negative pressure) was applied to the architectural board A.
is applied to lift the main plate 1 of the building board A upward, and at the same time lift its vertical part 2 downward and inward (main plate 1
Even if a tensile force acts on the vertical part 2, the lower position of the vertical part 2 is pressed, thereby increasing the strength of the vertical part 2 and, in turn, further increasing the strength of the tightening structure. Can be done. Furthermore, the presence of the arcuate portion 8 allows the finished end of the cap material B to be formed neatly without waving in the longitudinal direction, increasing the section modulus and making it stronger.

Next, the invention described in claim 4 (fourth claim)
In the invention), folded edges 9, 9 are formed inward from the outer ends of both arcuate portions 8, 8 of the cap material B in the configuration of the third invention, and the folded edges 9 are formed on the two sides of the vertical portion. By forming the second hollow part 12 in contact with the second invention, in addition to producing the same effect as the third invention,
First, it can provide good rust prevention and a durable locking structure.

To explain these effects in detail, the corrosion of the clamped parts generally starts at the clamped ends, and the corrosion due to battery action (commonly known as ``electrical corrosion'') quickly spreads to the entire clamped part. However, when the folded edges 9, 9 are in contact with the vertical part 2 of the building board A, the extreme ends of the folded edges 9, 9 are inside the arc-shaped part 8 and the vertical part 2. came to exist in
The ratio of exposure to rainwater can be minimized, and as a result, the end of the cap material B can be configured to be extremely resistant to corrosion, and the fastening part as a whole has excellent corrosion resistance, which in turn increases durability over a long period of time. Can be maintained.

In addition, if the clamping structure is made using a threaded hanger _C2 as shown in FIG. 19, the section modulus at any position in the longitudinal direction can be significantly increased, and it can be made even stronger.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the third invention, which is a flat plate type;
Figure 2 is a longitudinal sectional front view of the main part of Figure 1, and Figure 3 is a front view of the main part of Figure 1.
Vertical front view of the locking structure at the partial hanger location shown in Figure 4.
The figure is a longitudinal sectional front view of the main part of the first invention, FIG. 5 is a longitudinal sectional front view of the main part of the second invention, which is a flat plate type, FIG. FIG. 8 is a perspective view of a partial hanger, FIGS. 9 to 12 are perspective views of cap material, and FIG. 13 is a perspective view of the fourth invention made into a folding plate type. , Fig. 14 is a longitudinal sectional front view of the main part of Fig. 13, Fig. 15 is a longitudinal sectional front view of the locking structure at the partial hanger location of Fig. 13, and Fig. 16 is a longitudinal sectional view of the first invention which is a folding plate type. The front view, Figure 17 is the second folded version.
A longitudinal sectional front view of the invention, Fig. 18 is a longitudinal sectional front view of the main part of the third invention which is a folded plate type, and Fig. 19 is a latching outer enclosure that can be the fourth invention, which is roofed using threaded hangers. FIG. 20 is a sectional view of a conventional locking structure. A... Architectural board, B... Cap material, 1... Main plate, 2... Vertical part, 3... Top piece, 4... End edge, 5
... Flat U-shaped part, 6 ... Top part, 7 ... Drooping part, 8 ... Arc-shaped part, 9 ... Turned edge, 10 ...
...Material part, 11...Empty part, 12...Second empty part
Department.

Claims (1)

[Claims] 1. Vertical parts are formed on both sides of the main plate, an upper piece is formed inwardly from the upper ends of the vertical parts, and an end edge is bent downward from the inner end of the upper piece. A flat U of the cap material, in which building boards with a shape of The letter-shaped part is fitted between adjacent architectural boards, and both top parts and both hanging parts are fitted to both opposing upper pieces and both ends of the adjacent architectural boards, and the base side of the hanging part is fitted. It is formed into an arc shape and folded downward to bring the top piece and the top part into close contact with each other, and the edge and the hanging part to form an appropriate space between the top piece and the edge. A fastening structure in a fastening outer body characterized in that both upper pieces and both top parts are formed to be inclined outwardly and downward. 2 Architectural board with vertical parts formed on both sides of the main board, an upper piece formed inward from the upper ends of both vertical parts, and an edge bent downward from the inner end of the upper piece. Adjacent to the flat U-shaped portion of the cap material, the cap material has a top portion outward from both upper ends of the flat U-shaped portion, and a hanging portion from both outer ends of the cap material. Fits between architectural boards, and has both apexes and both hanging portions fitted over opposing upper pieces and both ends of an adjacent architectural board, and the base side of the hanging portion is formed into an arc shape. Fold it downward so that the top piece and the top part are in close contact with each other, and the edge and the hanging part are brought into close contact with each other, and the ends of both hanging parts are brought into contact with the corners of the vertical part of the construction board and the top piece. An appropriate hollow part is formed between the upper piece and the hanging part, and both upper pieces and both top parts are formed to be inclined outwardly and downwardly. Tightening structure. 3 Architectural board with vertical parts formed on both sides of the main board, an upper piece formed inward from the upper ends of both vertical parts, and an edge bent downward from the inner end of the upper piece. are arranged side by side at an appropriate interval, a top is formed outward from both upper ends of the flat U-shaped part, a hanging part is provided from both the outer ends, and a top part is provided outward from the lower end of the both hanging parts. The flat U-shaped part of the cap material, which has an arcuate part that bulges out in a mountain shape, is fitted between adjacent architectural boards, and both apex parts and both hanging parts are connected to both opposing tops of the adjacent architectural boards. One piece is fitted over both end edges, the base side of the hanging part is formed into an arc shape, and the hanging part is folded downward to bring the top piece and the top part into close contact with each other, and the end edge and the hanging part, respectively. and the arcuate portion are brought into contact with the corner portions of the vertical portion of the construction board and the upper piece, and an appropriate hollow portion is formed between the upper piece and the hanging portion, and A locking enclosure characterized in that an end of an arc-shaped portion is brought into contact with a vertical portion surface to form a second hollow portion, and both upper pieces and both top portions of the second hollow portion are formed to be inclined outward and downward. structure. 4 Architectural board with vertical parts formed on both sides of the main board, an upper piece formed inward from the upper ends of both vertical parts, and an edge bent in a folded shape downward from the inner end of the upper piece. are arranged side by side at an appropriate interval, a top is formed outward from both upper ends of the flat U-shaped part, a hanging part is provided from both the outer ends, and a top part is provided outward from the lower end of the both hanging parts. A flat U-shaped portion of a cap material, which has an arched portion bulging into a mountain shape and has folded edges inward from the outer ends of both arched portions, is fitted between adjacent architectural boards; In addition, both top portions and both hanging portions are fitted onto opposing upper pieces and both end edges of adjacent architectural boards, and the base side of the hanging portion is formed into an arc shape, and is folded downward to form the upper piece and the top portion. and by bringing the edge and the hanging portion into close contact with each other,
The corner points of the hanging portion and the arcuate edge are brought into contact with the corner points of the vertical portion and the top piece of the construction board,
A suitable hollow part is formed between the upper piece and the hanging part, and the folded edge is brought into contact with the vertical part surface to form a second part.
A fastening structure in a fastening outer enclosure, characterized in that a hollow part is formed, and both upper pieces and both tops thereof are formed in an outwardly downwardly inclined shape.