JPS60263715A - T-shaped joint structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a T-shaped joint structure with excellent watertightness and airtightness.

"Prior art and its problems, etc." Conventionally, when joints formed by seam welding are seam-welded as T-shaped joints, especially when the thickness of the plate becomes thick, the circle of the seam welding machine The plate electrode could not follow the shape of the stepped part (see Figure 7). There! ,
Welding in that area becomes impossible and a gap is formed. Therefore, there was a drawback that watertightness and airtightness deteriorated in that part. In addition, in order to completely adhere this part, it was necessary to perform seam welding and then repair the part by sporamy welding or the like. For this reason, the work is extremely troublesome, which is one of the causes of lower work efficiency.

"±Steps to Solve the Problems" Therefore, as a result of intensive research to solve the above-mentioned problems, the inventor has developed the present invention. 1 rising parts are seam-welded to each other to form a first joint part, one end of this first joint part is bent onto the main plate, and the other end of the main plate is raised together with this bent part to form a second rising part, This second rising part and a rising part formed at one end of the main plate of another rustless steel plate material are overlapped, and the second rising part at the bending and overlapping part is press-worked to form a flat pressured part. Perfect watertightness is achieved by creating a T-shaped joint structure in which the second rising part is seam-welded to the above-mentioned rising part, and the second joint part is formed by seam-welding the second rising part continuously at the pressurized part. , which ensures airtightness and solves the above problems. .

"Embodiment" An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Reference numerals 1 and 1 are stainless steel plates having a thickness that allows seam welding, and one end of each of the main plates 1a and Ia is raised,
First rising portions 1b, lb are formed. At this time, the first rising portions 1b, 1b are not immediately raised at right angles,
First, they are often raised up at a right angle (steep slope), with the upper part vertical, and when they are superimposed, a gap is formed at the lower end (see Figures 1 and 3). The first rising portions 1b and lb of the two stainless steel plates 1.1 are overlapped and seam welded to form an expandable first joint portion A. One end of this first joint portion A is bent onto the main plate Ia, forming the main plate 1a.

It is raised together with the other end of 1a to form a second rising portion 2. This second rising portion 2 also includes the first rising portion 1b, I
Similar to b, it is often first raised at a right angle or less, with the upper part vertically formed, and then formed so that a gap is created at the lower end when superimposed.

3 is another stainless steel plate having a thickness that allows seam welding, and one end of a main plate 3a is raised to form a rising portion 3b. At this time, the rising portion 3b, like the first rising portions 1b, Ib and the second rising portion 2, is first raised at a right angle or below, the upper part is formed vertically, and when superimposed, the lower end It is often formed so that there is a gap. The rising portion 3b of this rustless steel plate material 3 and the second rising portion 2 are overlapped.

A bent overlapping portion 2a is formed in the second rising portion 2. This bent overlapping portion 2a is a portion where the first joint portion A is bent onto the main plate Ia and bent vertically together with the main plates 1a and la.

The second rising portion 2 at the bending and overlapping portion 2a is pressed to form a flat pressed portion 2b. The width of the pressurized part 2b of the seam welding machine is larger in the vertical direction than the width of the disc electrode 6 of the seam welding machine, and its elongated direction is formed over the entire folded overlap part 2a (first (See Figure 2). The pressing may be performed only on the second rising portion 2, or may be performed after the second rising portion 2 is superposed with the rising portion 3b of another rustless steel plate material 3.

In an experimental example of machining the pressurized portion 2b, the thickness of the second rising portion 2 at the bending and overlapping portion 2a formed by the rustless steel plate 1.1 made of a true stainless steel plate was approximately Q.4 m. 5II+1 part, width number 1111 and length approximately 3 cm
Approximately 20 tons to approximately 30 tons of pressurizing force is applied using a press machine consisting of a pressurizing piece and a flat pressurizing section on the other side, and the second rising portion 2 at the bending and overlapping portion 2a is approximately 0. 5II+1 pressure-receiving portions 2b were formed.

The second rising portion 2 and the rising portion 3b thus formed are seam welded, and the pressured portion 2b is also seam welded continuously to this seam weld, and these seam welds are continuously performed. An expandable second joint portion B is formed by the second rising portion 2 and the rising portion 3b.

In the figure, 4 is a slab of a structure, etc., 5 is a movable hanger, 5a is a movable hanger main body, 5b is a movable tongue piece, 5C is a fixing device such as an anchor, and 6 is a disc electrode of a seam welding machine.

"Effect of the invention" In the present invention, the main plate 1a of two stainless steel plates 1.1
.
One end of the hand part A is bent onto the main plate Ia, and the other ends of the main plates 1a and la are raised together with this bent part to form a second rising part 2. The rising part 3b formed at one end of the main plate 3a of the rustless steel plate material 3 is superimposed, and the second rising part 2 at the bending and overlapping part 2a is pressed to form a flat pressed part 2b. The second rising portion 2 and the rising portion 3a are seam welded, and the pressured portion 2b is continuously seam welded to form the ′ζ second joint portion B. Firstly, the watertightness and airtightness are perfect, secondly there is no need for water damage repair work such as spot welding after seam welding, and thirdly the work can be done extremely easily.

To explain 1- in detail, firstly, the single-shaped joint structure of the present invention allows continuous seam welding even on stepped portions that could not be followed by the disc electrode 6 of the conventional seam welding machine. Therefore, welding can be performed continuously in one operation and a complete seal can be achieved, making it possible to achieve perfect watertightness and airtightness.

Second, in conventional T-shaped joint structures, welding is often not achieved at stepped portions, and therefore, watertight repair work such as spot welding is later performed on these portions. However, in the T-shaped joint structure of the present invention, since seam welding can be performed continuously, the above-mentioned spot welding work etc. can be made unnecessary, and the work efficiency can be significantly improved.

Thirdly, in the T-shaped joint structure of the present invention, compared to the conventional T-shaped joint structure, only the work of pressing a part by press working is added in the construction process, and another member is provided. Since this is not necessary at all, there is a remarkable advantage that a watertight and airtight T-shaped joint structure can be constructed extremely easily and quickly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which FIG. 1 is a perspective view of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1,
FIG. 3 is a cross-sectional view of the main part of the present invention, FIG. 4 is a perspective view of the part where the joint is mounted by a movable hanger, and FIG. 5 is a plan view showing the construction process of a conventional T-shaped joint structure. A...First joint part, B...Second joint part, 1.3...Rustless steel plate material, la, 3a...
...Main plate, 1b...First rising part, 2...
...Second rising part, 2a...Bending polymerization part,
2b...Pressure part, 3b...Rising part.

Claims (1)

[Claims] (1) The first rising parts formed at one end of each of the main plates of two stainless steel plates are seam-welded to each other to form a first joint part, one end of this first joint part is bent onto the main plate, and this bending point is At the same time, the other end of the main plate is raised to form a second rising part, and this second rising part is overlapped with a rising part formed at one end of the main plate of another rustless steel plate material, and the second rising part of the bending and overlapping part is overlapped. The rising portion is pressed to form a flat pressured portion, the thus formed second rising portion and the rising portion are seam welded, and then seam welding is performed continuously at the pressured portion to form a second T-shaped joint structure characterized by forming a joint part.