JPS6339741B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting portion for connecting the exterior panels made of thin metal sheets constituting the exteriors of buildings such as walls and roofs to form a continuous exterior. It's about structure.

Conventionally, when connecting exterior plates, it has been common practice to combine and connect the edges of the exterior plates by an appropriate method, and to fix the joined portion to a support member with bolts. However, in order to fix with bolts, it is necessary to drill bolt holes in the joint part in advance, and it not only takes a lot of effort to drill a large number of bolt holes, but also rainwater etc. from the bolt holes. There were problems such as penetration and further corrosion around the bolt holes due to electrolytic corrosion.

In view of such circumstances, various so-called boltless construction methods have been proposed in recent years, which connect without using bolts. These are usually made by bending the edge of one exterior plate to form a ridge on the inside (a groove on the outside), and fixing the ridge to a support member with a clamp or the like, and then The connection was made by bending the portion and engaging the groove. An example of this will be explained with reference to FIG. 5. 1a and 1b are exterior plates;
One exterior plate 1a has a substantially S-shaped curved portion 2a formed near the edge, and the other exterior plate 1b has a substantially S-shaped curved portion 2b formed near the edge, and is further horizontal. A substantially S-shaped curved portion 4 is also formed at the end edge portion via the portion 3 . Then, the curved portion 2b and the curved portion 4 are tightened with the fastening metal fitting 5 and fixed to the support member 16 via the fastening metal fitting 5, and the exterior plate 1
The curved portion 2a of a is fitted and locked to the curved portion 4 for connection.

However, in this type of connection, the exterior plate 1
b is fixed with a fastening fitting 5, but the exterior plate 1a
The curved portion 2a is only locked to the curved portion 4 of the exterior plate 1b, and is not positively fixed. Therefore, if a large force is applied to the exterior plate 1a or a strain occurs, the curved portion 2a may easily escape from the curved portion 4 and the connection may be disconnected. Escape can be prevented by extending the edge of the exterior plate 1a as shown by the chain line and aligning it with the curved part 2b, but the exterior plate 1
It is extremely difficult to fit the end portion of a into the exterior plate 1b.

The present invention has been made in view of the above circumstances, and is a method for connecting the ends of two exterior plates without using bolts, which facilitates the connection work, and also ensures a strong connection and does not fall off. This provides a connection structure without any

FIG. 1 shows an exterior constructed by connecting exterior plates according to the present invention. Reference numerals 1a, 1b, and 1c are exterior plates made of thin metal sheets, and these exterior plates 1a, 1b, and 1c are connected, and the connecting portions are fixed to the support member via fastening fittings 5.

FIG. 2 shows the connecting portion of the present invention.
The ends of the exterior plates 1a and 1b are once curved inward to form first curved portions 6a and 6b,
Subsequently, the second curved portions 7a, 7 are curved in the opposite direction.
b, respectively, to form an S-shape, and the edges are further curved outward via the flat plate portions 8a, 8b to form third curved portions 9a, 9b. Then, the third curved portion 9a of one exterior plate 1a is connected to the other exterior plate 1.
b, and then the third curved portion 9 of the other exterior plate 1b.
b is fitted to the outside of the second curved portion 7a of the one exterior plate 1a, thereby making the two exterior plates 1a,
1b is connected.

The fastening fitting 5 consists of two fastening members 5a and 5b, which are connected to the second curved portion 7 of the exterior plates 1a and 1b, respectively.
Detour parts 10a and 10b that detour around the outside of a and 7b
The tip portions 11a and 11b have a first curved portion 6.
It forms a curve that fits inside of a and 6b.
The base portions 12a, 12b of the binding members 5a, 5b are tightened with bolts 13 and nuts 14, and a fixing portion 15 extends from the rear end of one of the binding members 5a, and is secured to a support member 16. It is fixed to the locking tool 17 with a bolt 18 and a nut 19.

After joining the exterior plates 1a and 1b as described above, the detour parts 10a and 1 of the fastening members 5a and 5b are
0b is fitted into the second curved portions 7a, 7b, and the tip portions 11a, 11b are brought into contact with the insides of the first curved portions 6a, 6b. In this state, the bolts 13 and nuts 14 are used to tighten the bases 12a and 5b of the fastening members 5a and 5b.
By tightening 2b, the first curved portion 6
a and 6b are compressed and tightened, and the mutually overlapping portions of the exterior plates 1a and 1b are strongly pressed together. In the present invention, since the binding members 5a, 5b compress and tighten the first curved parts 6a, 6b, the detour parts 10a, 10b have a slight gap between them and the curved parts 7b, 9b. This makes it possible to connect the exterior plates 1a and 1b more reliably.

FIG. 3 shows another embodiment of the invention. In this embodiment, between the inside of the second curved portion 7a of the exterior plate 1a and the third curved portion 9a,
A reinforcing piece 20 is interposed. In the previous embodiment, if the fastening fitting 5 is tightened excessively, there is a risk that distortion may occur in the joint portion of the exterior plates 1a and 1b, but by interposing the reinforcing piece 20 as in this embodiment, the distortion can be reduced. In addition, the supporting force of the reinforcing piece allows the exterior plates 1a and 1b to be more firmly connected.

According to the present invention, when the exterior plates 1a and 1b are connected to each other, the third curved portion 9a of one exterior plate 1a
into the second curved part 7b of the other exterior plate 1b, and then insert the second curved part 7a of the one exterior plate 1a into the third curved part 9 of the other exterior plate 1b.
b, the connection can be made more easily. In addition, the tip portions 11a and 11b of the fastening fitting 5 contact the first curved portions 6a and 6b of the exterior plate 1a and the exterior plate 1b, respectively, and press and tighten them.
Unlike the conventional example in which only one exterior plate 1b is compressed and tightened and the other exterior plate 1a is only locked to that one exterior plate 1b, both exterior plates 1
a and 1b are firmly connected, and there is no possibility that the connection will come loose even if a large external force is applied. Furthermore, by interposing the reinforcing piece 20, it is possible to connect more firmly. Also, by forming the gap 21 between the flat plate parts 8a and 8b, the exterior plates 1a and
It is possible to prevent rainwater etc. that have entered between 1b due to capillary action from reaching the inside of the exterior.

Note that the curved portions 6a, 6b, 7 in the present invention
a, 7b, 9a, 9b are not only curved with a smooth curvature as shown in Figures 2 and 3, but also between a sharply bent part and the bent part as shown in Figure 4. This also includes a case in which it is constructed with an intervening flat plate part. Curved parts 6a, 6b, 7a,
Whether 7b, 9a, and 9b are smooth or angular is a matter of design, and technically there is no difference at all, and they may take any form.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the exterior of a building to which the present invention is applied. FIG. 2 is a sectional view of the main part of one embodiment of the present invention, and FIG. 3 is a sectional view of the main part of another embodiment of the invention. FIG. 4 is a cross-sectional view of the main parts of still another embodiment of the present invention. FIG. 5 is a sectional view of the main parts of the conventional example. 1a, 1b... Exterior plate, 5... Fastening fitting, 6
a, 6b...first curved part, 7a, 7b...second curved part, 8a, 8b...flat plate part, 9a, 9b...
...Third curved part, 11a, 11b... Tip part, 2
0...Reinforcement piece.

Claims (1)

[Scope of Claims] 1. The ends of the metal exterior plates 1a, 1b to be connected are once bent inward to form the first curved portion 6.
a and 6b, and then curved in the opposite direction to form second curved portions 7a and 7b, respectively, to form an S-shape, and further curve the edges outward via flat plate portions 8a and 8b. to form third curved portions 9a and 9b, and the third curved portion 9a of one exterior plate 1a is fitted inside the second curved portion 7b of the other exterior plate 1b, and the other exterior plate 1b is The third curved part 9b of
is fitted on the outside of the second curved portion 7a of the one exterior plate 1a, and the tip portion 11a of the fastening fitting 5 is fitted inside the first curved portion 6a, 6b of both exterior plates 1a, 1b.
11b are brought into contact with each other and are compressed and tightened together. 2 A reinforcing piece 2 is installed between the inside of the second curved portion 7a and the inside of the third curved portion 9a of the one exterior plate 1a.
2. A connection structure for metal exterior plates according to claim 1, characterized in that 0 is interposed therebetween.