JPS6213525B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a coated metal envelope that can be easily seam welded (resistance welded) to make the area where multiple sheets overlap watertight and airtight, and is also expandable and contractible. This invention relates to a cruciform joint device.

[Conventional technology and its problems, etc.]

BACKGROUND ART Recently, research and development have 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. In a cruciform joint where the covering metal material is relatively thick and many separate members overlap, there is a drawback that the amount of heat generated is insufficient due to electrical resistance, and watertight and airtight seam welding cannot be performed. It has been difficult to construct multiple members so that they can expand and contract at the same time.

[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.
A first expansion joint is formed by overlapping the rising portions and seam welding the upper end portions, and forming a longitudinal side end of one of the first rising portions of the upper portion of the seam welded portion of the first expansion joint. forming a notch by cutting out the first expansion joint, and folding and overlapping the side end of the first expansion joint part on the main plate with the notch facing downward;
The other side of the main plate adjacent to the first rising part is bent together with the overlapped part to form a second rising part to form an outer enclosure, and the second rising parts of the outer enclosure made of two sheets are mutually bent. A cruciform joint device in a coated metal outer envelope, in which the superimposed first expansion joint parts are butted and overlapped so that their bases match, and the upper ends are seam welded to form a second expansion joint part. By doing this, multiple members can be easily attached in an expandable and contractable manner, and even if many plate pieces are overlapped at the cross-shaped joint, they will be stacked as a single piece at the beginning of seam welding, and their electrical resistance will also be reduced. It can generate sufficient heat, can be seam-welded in a watertight and airtight manner, and can be expanded and contracted even against thermal stress, thus solving the above-mentioned problems.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 11.

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 have an appropriate length (see approximately the central portion of FIGS. 8 and 9). b ₁ , b ₂ , b ₃ , b ₄ are the main plates of the coated metal materials A ₁ , A ₂ , A ₃ , A ₄ , respectively, and the main plates b ₁ , b ₂ , b ₃ are formed in a substantially flat shape. , b ₄ have a first rising portion c ₁ at one end or both opposing ends, respectively.
c ₂ , c ₃ , and c ₄ are formed, respectively. Its main plate b ₁ ,
Second rising portions d ₁ , d 2 , d ₃ , d ₄ are formed on the other sides adjacent to the first rising portions c ₁ , _{c 2} , c ₃ , c ₄ of b ₂ , b ₃ , b ₄ , respectively. There is. Here, the coated metal materials A ₁ , A ₂ ,
A ₃ and A ₄ may have different shapes, two may be the same and the others may be different, or three may be the same and only one may be different from the others. Sometimes they are different, and sometimes they are all the same.

The main plates b ₁ , b ₂ , b ₃ , b ₄ and the first rising portions c ₁ , c ₂ ,
The c ₃ , c ₄ second rising portions d ₁ , d ₂ , d ₃ , and d ₄ are also constructed in the same manner as the case of the coated metal materials A ₁ , A ₂ , A ₃ , and A ₄ . First, the first rising portions c ₁ and c 2 at the mutual ends of the coated metal materials A ₁ and A ₂ are superposed, and the upper ends of the first rising portions c ₁ and _{c 2 (} slightly below the upper end) form the entire length. The first expansion joint portion 1 is formed by seam welding the first expansion joint portion 1 (see FIG. 4). The first expansion joint part 1
The lower part of the joint part is open, and the joint part is provided so as to be expandable and contractible in a direction perpendicular to the longitudinal direction of the joint part. The side end (slightly inward from the end) of the first rising part c ₂ (c ₁ is also acceptable) above the seam welded part of the first expansion joint part 1 (including the middle of the seam welded part) A notch e is formed by cutting out the portion up to the top (see Fig. 4). The formation of this notch e is as follows:
Generally, it is processed after seam welding, but it is processed in advance,
Seam welding may be performed later. The side end portion of the first expansion joint portion 1 (the length of this end portion may be equal to or greater than the height of the second rising portions d ₁ and d ₂ ) is located at the notch portion e. It is folded and superimposed on the main plate b ₂ (or the main plate b ₁ when the notch e is provided in the first rising portion c ₁ ) so that it is on the lower side (see FIG. 5). Along with the overlapped portion (the end of the first expansion joint portion 1), the other sides adjacent to the first rising portions c ₁ and c ₂ of the main plates b ₁ and b ₂ are bent to form the second
Rising portions d ₁ and d ₂ are formed. In this way,
It is constructed as an envelope consisting of coated metal materials A ₁ and A ₂ . Then, the outer envelopes are opposed to each other (see FIG. 7). That is, in FIG. 7, the coated metal material
An envelope made of A ₁ and A ₂ and an envelope made of coated metal materials A ₃ and A ₄ are opposed to each other. In addition, coated metal materials
The outer envelopes of A ₁ and A ₂ may be opposed to each other.
Here, in the envelopes of the coated metal materials A ₃ and A ₄ as well, the first rising portions c ₃ and c ₄ are polymerized, as in the case of the envelopes of the coated metal materials A ₁ and A ₂ described above. A notch e is also formed, a first expansion joint part is also provided, and second rising parts d ₃ and d ₄ are also formed. Then, the folded first expansion joint portions 1, 1
so that their mutual ends face each other outward, and the bases of the first expansion joint parts 1, 1 (the side with the bent part, corresponding to the lower end side with the rising edge) coincide with each other. and its second rising part d ₁ ,
d ₂ and the second rising portions d ₃ and d ₄ are overlapped and seam welded near the upper end to form the second expansion joint portion 2 (see FIG. 1). The lower part of the second expansion joint part 2 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 2.

The first expansion joint part 1, 1 and the second expansion joint part 2
The intersection point and its vicinity are called a cruciform joint.

Next, specific examples will be described for the coated metal materials A ₁ , A ₂ , A ₃ , and A ₄ . 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 into appropriate lengths as shown in the center of Figures 8 and 9). A coated metal material a having the same cross-sectional shape and size is used.
Side rising portions 4, 4 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 3 of the coated metal material a. The elongated covering metal material a formed by the side rising portions 4, 4 of the flat main plate 3 is formed by integrally bending a coiled metal plate 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 the first specific example, as shown in FIG. is the first expansion joint part 1, and a notch e is formed at the side end of one of the side rising parts 4. Then, the end of the first expansion joint part 1 is folded back and overlapped on the flat main plate 3 so that the notch e is on the lower side (see Fig. 5), and together with the overlapped part,
The 3 ends of the flat main plate are bent upward to form an end rising portion 5,
5 (see Figure 6). Then, the outer envelope (consisting of both coated metal materials a, The second expansion joint part 2 is formed by seam welding near the upper end (see Fig. 1), and a cruciform joint is constructed.

This first embodiment is shown in FIGS. 1 to 7 and 8A, respectively. Next, the second embodiment of the cruciform joint is as shown in part B of Fig. 8.
Both of the first expansion joint parts 1, 1 are connected to the end rising part 5,
5, the second expansion joint portion 2 is constituted by side rising portions 4, 4, respectively. In this case, since the end rising portions 5, 5 are formed first, in actual construction, the longitudinal ends of the side rising portions 4 are formed horizontally outward toward the tip. , and form it by bending it. Further, in the third embodiment of the cruciform joint, as shown at point A in FIG. It is formed by a rising portion 4 and an end rising portion 5, and the second expansion joint portion 2 is constituted by a side rising portion 4 and an end rising portion 5. Further, in the third embodiment, although not shown, one of the first expansion joint parts 1, 1 is formed by the end rising parts 5, 5, and the other is formed by the side rising part 4 and the end rising part 5. Sometimes I do. Further, in the fourth embodiment of the cruciform joint, as shown in part B of FIG. 9, the joint is made up of a side rising portion 4 and an end rising portion 5, which are seam welded. The codes for the first to third embodiments above refer only to the cruciform joints within the dotted ellipse, and the numbers on the front, back, left and right sides of this are as follows:
Different codes may overlap even for the same material, and member codes may differ 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. Further, the joint of the general part of the coated metal material a, that is, the side rising parts 4 and 4 are seam welded to each other to form an expansion joint part 6, which is also the first
Like the second expansion joint part 2, the expansion joint part 1 is configured to be open at the bottom and expandable. By adding these, a coated metal enclosure is constructed. A movable tongue piece 9 of a movable hanger 7, which has a movable tongue piece 9 slidably provided on the hanger main body 8, is sandwiched and seam-welded between the side rising portions 4, 4. A plurality of movable hangers 7 are provided at appropriate intervals in the longitudinal direction of the side rising portions 4, 4, and the hanger bodies 8 are fixed to the structure with fasteners such as bolts or anchors. ing. The movable hanger 7 is the first
It may be provided in the expansion joint part 1 and the second expansion joint part 2 as necessary.

〔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 portion of the first 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. Configure 2 like this
The second rising portions of the two outer envelopes are butted against each other so that the bases of the overlapped first expansion joint portions coincide, and the upper ends are seam welded to form the second expansion joint portion 2. Due to the formation, the overlapping part of the first expansion joint parts 1, 1 hardly expands or contracts in the direction perpendicular to the longitudinal direction, but the first expansion joint part 1, 1
The other parts of the expansion joint part 1 can freely expand and contract in the direction perpendicular to its longitudinal direction, and the second expansion joint part 2, which is substantially perpendicular to the first expansion joint part 1, can also expand and contract in the longitudinal direction. Even if the covering metal material is highly elastic and thermal stress is generated due to the expansion/contraction, the expansion/contraction of the covering metal material is prevented by the first and second expansion joints 1 and 2. It can absorb heat and prevent thermal distortion and damage to the coated metal material. In particular, the effect of the cruciform joint is that it can be seam welded to maintain watertightness and airtightness while being expandable and retractable. The cruciform joint is also effective when there is a shortage of parts and it is necessary to attach multiple other parts.

Moreover, in the present invention, the longitudinal side end of one of the first rising parts of the upper part of the seam-welded part of the first expansion joint part 1 is cut off to form the notch part e, and the first expansion joint part 1 is folded back and superimposed on the main plate so that the notch e is on the lower side, 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 were butted and overlapped so that the bases of the overlapping first expansion joint parts coincided with each other and seam welded, so that the covering metal material was relatively thin. The first expansion joint part 1 is a thick material.
Even if they are overlapped, the pressure roll of the seam welding machine will first pinch the two plates of the second expansion joint 2 and the one plate of the first expansion joint 1 without the notch e. The first upstanding piece, and by virtue of the coincidence of the bases and mutually facing outwards, the four
The material does not suddenly become thick even when many sheets are piled up, and the seam welding machine's electric resistance heats the material well, allowing seam welding to be continuous and watertight and airtight. . This eliminates the disadvantage that if the notch e was not provided, the material would suddenly become thicker, which would not be heated, resulting in incomplete seam welding. This effect is particularly large in the case of a cruciform joint in which many pieces overlap. Providing the notch e is effective for thick materials, and even for thin materials with low electrical resistance. Further, even in the case of thin materials, if the notch e is provided, the self-propelling or non-propelling speed of the seam welding machine can be increased, and the seam welding work can be made more efficient. In addition, even at cruciform joints, the material does not thicken suddenly, allowing smooth seam welding.

[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. 1 - sectional view taken from the arrow direction, Fig. 3 is a sectional view taken from Fig. 1 - taken from the arrow direction, and Figs. 4 to 7. 8 is a perspective view of the coated metal envelope having the first and second embodiments of the present invention, and FIG. 9 is a perspective view of the state of processing during construction of the first embodiment. A perspective view of a coated metal envelope having third and fourth embodiments,
FIG. 10 is a sectional view of a general joint portion, and FIG. 11 is a perspective view of FIG. 10. 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, 1...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,
A notch is formed by cutting off the longitudinal side end of one of the first rising parts of the upper part of the seam welded part of the first expansion joint, and the side end of the first expansion joint is cut out. The main plate is folded over and overlaid on the main plate with the notch facing downward, and the other side adjacent to the first rising part of the main plate is bent together with the overlapping part to form a second rising part to form an outer enclosure. The second rising parts of the two outer envelopes are butted against each other so that the bases of the overlapped first expansion joint parts coincide with each other, and the upper ends are seam welded to form the second
A cruciform joint device in a coated metal envelope, characterized in that an expansion joint portion is formed.