JPH0676720B2 - Joint structure of coated metal enclosure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a coated metal in which curved and non-corrugated steel sheet materials curved to a desired curvature simply and quickly have reliable watertightness and airtightness. The present invention relates to a joint structure of an outer envelope.

[Prior art and its problems] Conventionally, a joint portion formed by seam welding of a non-rust steel plate material (thin plate) such as a groove shape is performed by overlapping the rising portions of the side portions of the main plate, or a T-shaped joint. Generally, this joint had a linear shape or a gentle curved shape when viewed from the side.

However, by bending the longitudinal direction of the stainless steel sheet material into a polygonal shape and bending the entire stainless steel sheet to an appropriate curvature to form a bent stainless steel sheet material, a joint with a simple structure in which the rising portions of these sides are seam welded There was no structural thing. That is, seam-welding of bent stainless steel materials is easily performed,
There was no joint structure that ensured watertightness and airtightness.

On the other hand, when the covered metal enclosure is roofed on a rooftop such as a building, the relationship between the rising wall around the rooftop and the rooftop location is that the flat rooftop to the rising wall are integrally formed. Although it is preferable to do so, since the stretchable structure is interposed and the like, the work is performed by using the accessory material which is a separate member.

For this reason, at the site where the coated metal enclosure is to be constructed, there is a demand for something that can be easily constructed so that it can be integrally formed from the flat rooftop to the rising wall, especially in the longitudinal direction of the stainless steel plate material. Can be bent, and is watertight,
There has been a demand for a joint structure that ensures airtightness.

[Means for Solving the Problems]

Therefore, as a result of earnestly researching to solve the above problems, the inventor formed the rising portion on the side portion of the main plate according to the present invention,
The rising portion is bent to form a triangular projection that gradually increases from the lower side to the upper side, and the bent non-rust steel plate materials that are bent so as to overlap the rising section are made to face each other, and both triangular projections are bent. The joint structure of the covered metal enclosure was made so that the bending directions were reversed and the bases of both triangular protrusions were separated from each other, and the rising portions with triangular protrusions were polymerized and seam welded. This makes it possible to easily and quickly make the bent, non-corrugated steel sheet materials curved to have a desired curvature have reliable water-tightness and air-tightness, thereby solving the above problems.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 10.

Reference numeral A is a bent stainless steel plate material, and rising portions 2, 2 are formed on both sides in the width direction of a flat main plate 1 (see FIG. 3). Further, the rising portion 2 is bent to form a triangular protrusion 3 that gradually increases from the lower side to the upper side. The triangular rib 3 gradually increases as the rib goes from the lower side to the upper side, and when viewed from the front (cross section) of the curved building board A, it has a substantially triangular shape.

The triangular protrusion 3 is bent and formed on the outer side (see FIGS. 3 and 4) or the inner side (see FIG. 5) of the rising portion 2.

Further, a plurality of triangular ridges 3 are provided on the rising portion 2 at appropriate intervals in the longitudinal direction, and the main plate 1 and the rising portions 2, 2 are curved in the longitudinal direction as a whole to form a polygonal curve. Has been done.

The triangular protrusion 3 is bent so as to overlap the rising portion 2 as indicated by the arrow from the chain line in FIG. 2 to the solid line in FIG. At this time, the stainless steel plates A, A facing each other
The folding directions of the triangular protrusions 3 are mutually opposite. Furthermore, the base portions 3a, 3a of the two triangular projections 3, 3 of the mutually facing bent stainless steel members A, A are formed so as to be separated from each other (see FIG. 1).

In this way, the rising portions 2,2 with the triangular ridges 3,3 are overlapped, and the portion near the upper end of the rising portions 2,2 is seam welded (resistance welding) over the entire length to form the joint B. There is.

The rising portion 2 is not immediately raised at a right angle, but is first raised at a right angle or less (a steep slope) to have an upper portion formed vertically, and when superposed, an inverted V-shaped gap is formed at the lower end. Are often formed (see the drawings).

In addition, the process of actually processing the bent stainless steel plate A will be described. First, a building plate that is substantially straight in the longitudinal direction and has rising portions 2 formed on both sides of the main plate 1 in the width direction is formed. On the other hand, a hand tool T for forming a triangular ridge is used for the rising portion 2 at a portion where bending is desired.

Specifically, as shown in FIGS. 6 to 9, the hand tool T
On the lower surface of the flat upper blade body 4 is a substantially triangular upper blade 5
Is provided, and a notched blade portion 6a into which the upper blade 5 can be loosely inserted is formed substantially in the center of the lower blade body 6 corresponding to the upper blade body 4, and the upper blade body 4 and the lower blade body 6 are continuous with each other. The grips 7, 7 are located near the upper blade body 4 and the lower blade body 6, and the shaft support 8 is provided.
The grips 7, 7 are swingable.

The upper blade body 4 and the upper blade 5, and the lower blade body 6 and the notched blade portion 6a at the center corresponding to the upper blade body 4 and the upper blade body 5, further pressurize the rising portion 2 while sandwiching the rising portion 2. ,
The plate material of the rising portion 2 is pressed into the notched blade portion 6a,
The triangular protrusion 3 can be bent and formed extremely orderly.

Next, as a usage mode of the joint structure of the present invention, as shown in FIG. 10, a covered metal enclosure is roofed on a rooftop 9 of a building or the like. That is, in the fitting relation between the rising wall 10 around the roof 9 position and the roof 9, the flat roof 9 and the rising wall 10 can be integrally formed and can be expanded and contracted in the longitudinal direction in the flat portion. Is preferred. For this reason,
At the 10 rising walls, the coated metal enclosure is caulked so that the bent portions of the bent stainless steel sheet A are present.

In the figure, 11 is a shade wood.

〔The invention's effect〕

In the present invention, the rising portion 2 is formed on the side portion of the main plate 1, and the rising portion 2 is bent to form a triangular protrusion 3 that gradually increases from the lower side to the upper side. Bending non-corrosive steel sheet material that is bent so as to be polymerized into 2
A and A are opposed to each other, the bending directions of both triangular protrusions 3 and 3 are reversed, and the base portions 3a and 3a of both triangular protrusions 3 and 3 are separated from each other. Rising part with Articles 3 and 3
First, by using a joint structure of a covered metal enclosure in which 2, 2 are polymerized and seam welded, the bent stainless steel plate material is firstly formed.
Watertightness and airtightness between A and A can be ensured. Secondly, the joints of the triangular ridges of the bent stainless steel sheet A can be made extremely good. Thirdly, the entire joint structure is simple and quick. There are effects such as being able to.

To explain these effects in detail, firstly, in the present invention. When the triangular protrusion 3 that gradually increases from the lower side to the upper side is bent in the rising portion 2, the upper side of the rising portion 2 acts to reduce the length in the longitudinal direction from the lower side. By providing a plurality of the triangular protrusions 3, the entire longitudinal direction of the triangular protrusions 3 can be curved with an appropriate curvature. Furthermore, the bending-free stainless steel plate materials A and A are made to face each other so that the bending directions of the both triangular protrusions 3 and 3 are opposite to each other, so that the plate thickness when seam welding the three triangular protrusions is , The thickness of the rising portion 2 is four times as thick as the seam welding, which is the same as the plate thickness of the conventional T-shaped joint, and the seam welding can be performed well, and the joint portion B is watertight and airtight. You can make sure of sex.

Secondly, the triangular protrusions 3 and 3 are not formed by providing separate members on the rising portions 2 and 2, but are simply bent,
Even if the three triangular protrusions are seam welded, the three triangular protrusions are formed continuously while the rising portion 2 is bent, so that the watertightness and airtightness can be reliably ensured. There is.

Thirdly, the bent stainless steel sheet material A is not one in which the triangular ridges 3 are continuous with the rising portion 2 in the longitudinal direction, but it is sufficient if the triangular protruding strip 3 is provided at an appropriate position in the longitudinal direction of the rising portion 2. It can be bent into a curved shape and can be bent to an appropriate curvature as a whole. This can also be easily done with a hand tool T, and the joint processing using this is simply seam welding. There is an effect that can be easily.

Particularly, in the present invention, since the base portions 3a, 3a of the both triangular protrusions 3, 3 are slightly separated, the triangular protrusions 3, 3 of the joint structure are formed.
At the location, it will not be more than 4 times thicker than the plate thickness of the rising part 2, and if the base parts 3a, 3a of both triangular protrusions 3, 3 are close to each other, the whole cross section will have a disk shape. It becomes difficult for the electrode of the electrode roller to conduct electricity. It can be prevented,
There is an advantage that more perfect seam welding can be performed.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of the present invention, FIG. 2 is an exploded perspective view of FIG. 1 before seam welding, and FIG. FIG. 4 is a perspective view, FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a cross-sectional view of a bent stainless steel plate according to another embodiment, and FIG. 6 is a working state in which a bent stainless steel plate is bent. Fig. 7, Fig. 7 is a cross-sectional view of a triangular ridge during molding, Fig. 8 is a cross-sectional view of the triangular ridge completed, Fig. 9 is a perspective view of the state of Fig. 8, and Fig. 10 shows the present invention. It is a partial perspective view of the coating metal outer body used and constructed. A ... Bendless stainless steel plate material, 1 ... Main plate, 2 ... Rising part, 3a ... Base part, 3 ... Triangular ridge.

Claims (1)

[Claims] 1. A rising part is formed on a side part of a main plate, and a triangular protrusion that gradually increases from a lower side to an upper side is bent on the rising part so that the triangular protrusion is overlapped with the rising part. The bent bent stainless steel plates are made to face each other so that the bending directions of both triangular projections are opposite to each other, and the bases of both triangular projections are separated from each other, and the rising portions with triangular projections are mutually separated. A joint structure for a coated metal enclosure characterized by being polymerized and seam welded.