JPS6213526B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention seam-welds (resistance welding) watertight and airtight joints where many joints overlap, eliminates distortion due to heat etc., and becomes safe. Moreover, the present invention relates to a cruciform joint device in a covered metal envelope that is expandable and retractable.

[Conventional technology and its problems, etc.]

BACKGROUND ART Recently, research and development has been conducted on coated metal enclosures that are constructed watertightly and airtight by seam welding coated metal materials (mainly stainless steel materials) to the inner and outer surfaces of structures. In carrying out this construction, important issues are how to seam weld the joint and how to make it expandable and contractible in response to thermal stress and the like. If the joint is seam welded, thermal distortion will occur there, and if the joint is standing upright, it will be extremely dangerous for the worker. , and it was difficult to construct it so that it could expand and contract.

[Means for solving problems]

Therefore, as a result of intensive research in order to solve the above-mentioned problems, the inventor has developed the present invention.
The rising parts are overlapped with each other, and the upper end is seam welded to form a first expansion joint, and the longitudinal side end of the upper part of the seam welded part of the first expansion joint is cut off to form a notch. , and fold the remaining upper part, fold the side end of the first expansion joint part over the main plate, and bend the other side adjacent to the first rising part of the main plate together with the overlapped part. to form a second rising part to form an outer enclosure, and the second rising parts of such two outer enclosures are connected so that the bases of the overlapping first expansion joint parts coincide with each other. The second expansion joint is formed by butting and overlapping the upper end, and the upper part of the second expansion joint is formed into a cruciform joint device in the coated metal envelope, which is broken. Multiple members can be easily attached in an expandable and contractable manner, heat can be generated well even with electrical resistance even when a large number of plate pieces are overlapped at a cruciform joint, watertight and airtight seam welding is possible, and By breaking the first and second expansion joints that make up the cruciform joint, it is possible to correct the thermal strain there and make it stronger, and it is possible to prevent danger to workers etc. due to the breakage. It can be expanded and contracted even under stress and the above-mentioned drawbacks have been solved.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 14.

A ₁ , A ₂ , A ₃ , and A ₄ are coated metal materials, and metal plates (for example, stainless steel plates) having a thickness (about 0.2 mm to about 1 mm) that can be seam welded are used. The coated metal materials A ₁ , A ₂ , A ₃ , and A ₄ are used as coating materials on the outer surface (or inner surface in some cases) of structures such as concrete or steel frames. Its coating metal material
A ₁ , A ₂ , A ₃ , and A ₄ are generally formed long,
It may be formed to an appropriate length (Fig. 11,
(See approximately the center of FIG. 12). b ₁ , b ₂ , b ₃ , and b ₄ are the main plates of the coated metal materials A ₁ , A ₂ , A ₃ , and A ₄ , respectively;
It is formed in a substantially flat shape. Its main plate b ₁ , b ₂ ,
First rising portions c _{1 ,} c ₂ , c ₃ , and c ₄ are formed at one end or both opposing ends of b 3 and b ₄ , respectively. The first rising portions c ₁ , c ₂ , c ₃ of the main plates b ₁ , b ₂ , b ₃ , b ₄ ,
_Second rising portions d ₁ , d ₂ ,
d ₃ and d ₄ are formed respectively. Here, the coated metal materials A ₁ , A ₂ , A ₃ , and A ₄ may have different shapes, two of them may be the same and the other may be different, or Sometimes three are the same and only one is different from the others, and sometimes all of them are the same. The main plates b ₁ , b ₂ , b ₃ , b ₄ and the first rising portions c ₁ , c ₂ , c ₃ , c _{4 and} the second rising portions d ₁ , d ₂ , d ₃ , d ₄ are also coated with metal material A ₁ , A ₂ , A ₃ , and A ₄ . First, the coated metal material
The first rising parts c 1 _and c ₂ at the ends of A ₁ and A ₂ are overlapped, and the upper ends of the first rising parts c ₁ and c ₂ (slightly below the upper end) are seam welded over the entire length. First
An expansion joint 1 is formed (see FIG. 4). The first expansion joint part 1 is open at the bottom and is provided so as to be expandable and contractible in a direction perpendicular to the longitudinal direction of this joint part. A notch e is formed by cutting off the side end (a little inward from the end) of the upper part of the seam welded part of the first expansion joint part 1 (including the middle of the seam welded part) (See Figure 5). The notch e is generally formed after seam welding, but it may also be formed in advance and then seam welded. The other upper part of the first expansion joint part 1 which is not provided with the cutout part e is folded 2 (see FIG. 6). The folding step 2 is performed using an electric tool or a hand tool. Next, the end of the first expansion joint part 1 (the length of this end may be equal to or greater than the height of the second rising parts d ₁ and d ₂ ) is connected to the main plate b ₂ or the main plate b ₁ (see Figure 7). Along with the overlapped portion (the end of the first expansion joint portion 1), the other sides of the main plates b ₁ and b ₂ adjacent to the first rising portions c ₁ and c ₂ are bent to form second rising portions d ₁ and d ₂ is formed (see Figure 8). In this way, the covering metal materials A ₁ and A ₂ are covered as the outer envelope. Then, the outer envelopes are opposed to each other (see FIG. 9). In FIG. 9, the outer envelopes of the coated metal materials A ₁ and A ₂ are opposed to the outer envelopes of the coated metal materials A ₃ and A ₄ . Further, the outer envelopes of the coated metal materials A ₁ and A ₂ may be opposed to each other. Here, in the outer envelopes of _the coated metal materials A ₃ and A ₄ as well, _the first
The rising portions c ₃ and c ₄ are overlapped and seam welded, a notch e is also formed, the first expansion joint portion 1 is also provided, and the second rising portions d ₃ and d ₄ are also formed. Then, the mutual ends of the folded first expansion joint parts 1, 1 are made to face each other outward, and the bases of the first expansion joint parts 1, 1 (on the side having the bent part) are The second rising portions d ₁ , d ₂ and the second
The rising portions d ₃ and d ₄ are overlapped, and the upper end portions are seam welded to form the second expansion joint portion 3 (see FIG. 10). The lower part of the second expansion joint part 3 is also open like the first expansion joint part 1, and is provided so as to be expandable and contractible in a direction perpendicular to the longitudinal direction of the second expansion joint part 3. The upper part of the second expansion joint 3 is folded 4 (see FIGS. 1 and 2). The intersection of the first expansion joint parts 1, 1 and the second expansion joint part 3 and the vicinity thereof are called a cruciform joint. Next, for the coated metal materials A ₁ , A ₂ , A ₃ , A ₄ ,
A specific example will be described. Its coating metal material
A ₁ , A ₂ , A ₃ , and A ₄ should be long in actual construction (in some cases, they should be made to an appropriate length as shown in the center of Figures 11 and 12). A coated metal material a having the same cross-sectional shape and size is used. Side rising portions 6, 6 of about 2 cm to about 8 cm are bent and formed on both sides in the width direction of the long flat main plate 5 of the coated metal material a. The elongated covering metal material a formed by the rising portions 6, 6 of the flat main plate 5 is as follows:
A coiled metal plate is integrally bent and formed using a roll forming machine or the like. In the drawings, the reference numerals of specific embodiments are written in parentheses after the general reference numerals. First, to describe a first example of specific examples, as shown in FIG. is the first expansion joint part 1.
A notch e is provided at the upper side end (see Figure 5), the rest of the upper side is folded 2 (see Figure 6), and the end of the first expansion joint 1 is cut into the flat main plate 5.
The flat main plate 5 is bent upward along with the overlapped portion (see FIG. 7) to form end rising portions 7, 7 (see FIG. 8). Then, the outer envelope (consisting of both coated metal materials a, a) is made to face each other (see FIG. 9), and its end rising portions 7, 7 and end rising portions 7, 7 are The second expansion joint part 3 is formed by seam welding the upper end of the joint (see Fig. 10), and the upper part is folded 4 (see Figs. 1 and 2) to form a cross shape. Install the joint. This first embodiment is shown in FIG.
0 and 11A, respectively. Next, in the second embodiment of the cruciform joint, as shown in FIG. The section is composed of rising sections 6 and 6, respectively. In this case, since the end rising portions 7, 7 are formed first, in actual construction, the longitudinal ends of the side rising portions 6 are formed horizontally outward toward the tip. ,
Form it by bending it. Further, in the third embodiment of the cruciform joint, one of the first expansion joint parts 1, 1 is connected to the side rising parts 6, 6, as shown in part A in FIG.
The second expansion joint part 3 is formed by the side rising part 6 and the end rising part 7. Also,
In the third embodiment, although not shown, one of the first expansion joint parts 1, 1 is formed with an end rising part 7, 7,
The other may be formed by a side rising portion 6 and an end rising portion 7. Further, the fourth embodiment of the cruciform joint is composed of a side rising portion 6 and an end rising portion 7, which are seam welded, respectively, as shown in FIG. 12B. The codes for the first to third embodiments above refer only to the cruciform joints within the dotted ellipse, and the parts on the front, back, right and left sides of the dotted ellipse may have different codes even if they are made of the same material. In addition, the member codes may be different for each cruciform joint location. Further, in the first to third embodiments described above, it is of course included that the notch e is provided in the first rising portion on the other side. In addition, the joint of the general part of the coated metal material a, that is, the side rising part 6,
6 are seam-welded to each other to form an expansion joint part 8, which, like the first expansion joint part 1 and the second expansion joint part 3, is open at the bottom and is expandable and contractible.
By adding these, a coated metal enclosure is constructed. A movable tongue piece 11 of a movable hanger 9, which has a movable tongue piece 11 slidably provided on a hanger main body 10, is sandwiched and seam welded between the side upright parts 6, 6. A plurality of movable hangers 9 are provided at appropriate intervals in the longitudinal direction of the side rising portions 6, 6, and the hanger bodies 10 are fixed to the structure with fasteners such as bolts or anchors. There is. The movable hanger 9 is provided in the first expansion joint part 1 and the second expansion joint part 3 as necessary.

Although not shown, a notch e is provided on either side of the first rising portion, and construction is performed by folding one end of the first expansion joint onto the main plate with the notch e facing downward. There is also.

〔Effect of the invention〕

In the present invention, the first rising parts of two coated metal materials each having a first rising part formed at one end of the main plate are overlapped with each other, and the upper ends are seam welded to form the first expansion joint part 1, The side end part of the first expansion joint part 1 is folded back and overlapped on the main plate, and the other side adjacent to the first rising part of the main plate is bent together with the overlapped part to form a second rising part. The second rising portions of the two-piece outer enclosure are overlapped with each other.
By abutting and overlapping the expansion joints so that their bases coincide and seam welding the upper ends to form the second expansion joint, the overlapping portion of the first expansion joints 1, 1 is The first expansion joint part 1 hardly expands or contracts in the direction perpendicular to the longitudinal direction.
The other parts can freely expand and contract in the direction perpendicular to the longitudinal direction, and the second expansion joint part 3, which is approximately perpendicular to the first expansion joint part 1, can also expand and contract in the direction perpendicular to the longitudinal direction. Even if the covering metal material is highly elastic and thermal stress is generated due to the expansion and contraction, the expansion and contraction of the covering metal material can be absorbed by the first and second expansion joint parts 1 and 3. It can prevent thermal distortion and damage to the coated metal material. In particular, the effect of a cruciform joint in which multiple pieces are stacked is extremely effective, as it can be seam-welded to maintain watertightness and airtightness while being expandable and retractable. Also, if you run out of parts and need to install multiple other parts,
The cruciform joint is effective.

Further, in the present invention, the side end in the longitudinal direction of the upper part of the seam welded part of the first expansion joint part 1 is cut off to form the cutout part e, and the remaining upper part is cut 2 and the first The side end portion of the expansion joint portion 1 is folded back and overlapped on the main plate, and the other side adjacent to the first rising portion of the main plate is bent together with the overlapped portion to form a second rising portion to form an outer enclosure. The second rising portions of the two outer envelopes are butted and overlapped so that the bases of the overlapping first expansion joint portions 1 and 1 are aligned, and the upper ends are seam welded. By forming the second expansion joint part 3 and folding the upper part of the second expansion joint part, if the covering metal material is a relatively thin material, the folded part will not be folded. Since only the two plates of the first expansion joint 1 are superimposed on the two plates of the second expansion joint 3, sufficient heating by the electric resistance of the seam welding machine is performed, ensuring the degree of welding. Watertight and airtight seam welding is possible. Therefore, it has been solved that it has been extremely difficult to seam weld a joint in which a large number of joints overlap. In addition, the plate materials to be seam welded are heated (by electrical resistance) and welded.
Generally, thermal distortion occurs, but in this case, the thermal distortion of the first expansion joint part 1 and the second expansion joint part 3 can be corrected to make it orderly and strong.
In addition, the formation of folds 2 and 4 eliminates the vertical knife-like appearance of the upper end, which prevents danger to workers and eliminates the inconvenience of cutting cords, etc. of seam welding machines. can. In addition, in the past, the vertical blade shape was covered with a cap material in case of danger, but this had disadvantages such as requiring a separate member and increasing construction costs.
4, it was resolved all at once.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the basics and first embodiment of the present invention, FIG. 2 is a sectional view taken from FIG. 11 is a perspective view of the coated metal enclosure having the first and second embodiments of the present invention, and FIG. 12 is a perspective view of the state of processing during the construction of the first embodiment. 13 is a perspective view of the coated metal envelope having the third and fourth embodiments, FIG. 13 is a sectional view of a general joint part, and FIG.
The figure is a perspective view of FIG. 13. A ₁ , A ₂ , A ₃ , A ₄ ... coated metal material, b ₁ , b ₂ ,
b ₃ , b ₄ ... Main plate, c ₁ , c ₂ , c ₃ , c ₄ ... First rising part, d ₁ , d ₂ , d ₃ , d ₄ ... Second rising part, e ... Notch part , 1...first expansion joint part, 2, 4...first fold,
3...Second expansion joint part.

Claims (1)

[Claims] 1. Overlap the first rising parts of two coated metal materials with a first rising part formed at one end of the main plate, and seam welding the upper ends to form a first expansion joint,
cutting off the side end in the longitudinal direction of the upper portion of the seam welded portion of the first expansion joint to form a notch;
Then, the remaining upper part is folded, the side end of the first expansion joint part is folded back and overlapped on the main plate, and the other side adjacent to the first rising part of the main plate is bent together with the overlapped part to form a second rising part. The second rising parts of the two outer envelopes are butted against each other so that the bases of the overlapping first expansion joint parts coincide with each other, and the second rising parts of the two outer envelopes are overlapped. A cruciform joint device in a coated metal envelope, characterized in that a second expansion joint is formed by seam welding near the upper end, and the upper part of the second expansion joint is broken off.