JPS6137029B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of seam welding thin metal plates to perform waterproofing work by joining them together.

Recently, a metal roof waterproofing method is being implemented in which the roofs of buildings are made waterproof by seam welding thin long stainless steel plates (less than 0.5 m/m).

However, conventional seam welding methods have various drawbacks because the seam welding surface must be perpendicular to the roof surface material, as described below.

Therefore, the present invention aims to eliminate the drawbacks of the conventional technology, and the purpose of the present invention is to make the seam welding surface part at an angle other than right angles to the face material, and to use a rod-shaped cathode and a disk-shaped anode. Therefore, the seam welding surface portion is seam welded.

In the present invention, the term "rod-shaped cathode" refers not only to a single rod-shaped electrode, but also to a rod-shaped cathode constructed by arranging or connecting short electrodes in a row. It also refers to things. Furthermore, in the present invention, the "pressing means for pressing the molded part of the face material of the anode" is not limited to manual means.

First, the conventional seam welding method and the state after welding will be explained based on FIGS. 1 to 4.

Hangers 2 are attached to the roof board 1 at predetermined intervals, and then a panel 3 having molded parts (seam welded parts) 4, 4 folded up on both sides in the ulnar direction at right angles to the bottom surface 3' is attached. It is placed between the hangers and the molded parts of adjacent face materials are temporarily attached to each other.

Thereafter, the horizontal two
Seam welding machine 8 having disk-shaped electrodes 6 and 7
The electrodes 6 and 7 are placed over the molded parts 4 and 4, and the seam welding 9 is performed by rotating and driving the electrodes 6 and 7 while pressing them from both sides of the molded parts 4 and 4.

By the way, as mentioned above, in the seam welding method in the conventional waterproofing method, the electrodes 6 and 7 of the seam welding machine 8 used in this method are both disk-shaped and installed horizontally, so a part of them covers the welding point 9. The forming parts 4, 4 forming the structure must be folded up perpendicularly to the bottom surface of the panel. For this reason, it is difficult to perform seam welding work that requires tight turning, and also
0 and 10 are raised upward and exposed, which is not only dangerous during roof reed work, but also has disadvantages such as leakage if the seam welding is incomplete, and poor aesthetics. It was hot.

Regarding the above-mentioned drawbacks other than the poor workability, conventionally, as shown in FIGS. 3 and 4, the forming part 4,
The solution is to prevent the cap 11 from coming off by covering the cap 11 after welding the seam and crimping 12 at regular intervals with a snapper, but the cost required for this work cannot be ignored. Not only that, but it also had the disadvantage that it would be more expensive to completely prevent the cap from leaving the cap.

In addition, as shown in Fig. 4, in order to fold up the ends of the facing materials 3a, b, c... after the roofing has been reeded, the molded parts 4, 4 in the vicinity thereof must be folded down parallel to the facing materials. If you cannot fold it up beyond crease 13,
Further, there was a drawback that the cap 11 could not be placed over the folded part of the molded part.

Next, the content of the present invention will be explained based on examples.

First, the seam welding method of the present invention will be explained based on FIG.

In addition, FIG. 5 is an explanatory diagram of the seam welding procedure when performing waterproof construction on the roof board 1 using the hanger 15 shown in FIG. 9 and the face material 14 shown in FIG. 13. , A in the same figure shows the case where the anode is welded while pressing the anode at a right angle to the face members 14a, b, and B shows the case when welding while pressing the anode at a right angle to the molded parts 16, 17 of the face members 14b, c. . As shown in FIG. 13, the facing material 14 is folded back on one side in the longitudinal direction,
The other side is folded up in a diagonal direction so that the folded-back forming part 16 and the diagonally folded-up forming part 17 are provided at the same angle and in the same direction.

The surface material 14 formed in this way is attached to the roofing board 1 in advance.
Adjacent panel materials 14a, 14b, 14c are placed between the hangers 15 attached at predetermined intervals on the top.
The forming part 16 on the papermaking side and the forming part 17 on the covering side are overlapped.

After this, in the case of FIG. 5A, the flat rod-shaped cathode 1
8 is inserted into the lower side of the forming part 16 on the papermaking side, and then the disk-shaped anode 1 is inserted from the upper side of the forming part 17 on the covering side.
9 is pressed perpendicularly to the face plates 14a and 14b, and seam welding is carried out while the welding surface portions 20 of the molded parts 16 and 17 are pressed and bent in extreme areas to become parallel to the face plates. .

The anode 19 is driven by a motor installed in an anode support body 21 that is lightweight and can be carried with one hand, and the pressing force of the anode can be controlled by the operator.
The anode can be obtained by holding the handles 22 and 23 attached to the anode and pressing the anode toward the cathode. In addition, each electrode is connected to a cable 27,
It is connected to the welding machine via 28.

On the other hand, in the case of FIG. 5B, the cathode 18 is
6 and 17, insert this cathode 18 under the molded part, and then press the anode 19 described above at right angles to the seam welding surface 20 on the outside of the molded part. It is designed to be seam welded.

Now, FIGS. 6 to 8 show two and three examples of the cross-sectional shape of the formed part of the face material that can be applied to the seam welding method of the present invention described above.
This figure shows a state in which the forming part 16 on the papermaking side and the forming part 17 on the covering side of the double-sided material overlap with each other when two sheets of face material are laid.

First, in FIG. 6, the forming portions 16 and 17 are directly inclined, and in FIG.
17 is curved and inclined, and the 8th
In the figure, the seam welding surface portions 20 formed at the tips of the molded portions 16 and 17 are parallel to the bottom surface of the facing material, but in both cases, the seam welding surface portions 20 within the molded portions are parallel to the bottom surface of the facing material. Bottom surface 1 of material 14
If it is not parallel to the perpendicular line 29 from 4', the forming part 1
6 and 17 themselves may be at any angle with respect to the vertical line 29. Note that both molded parts 1
When 6 and 17 are placed one on top of the other, an expansion structure can be obtained by providing an appropriate distance 30 between the two except for the seam weld.

Therefore, in FIGS. 6, 7, and 8, the molded part 1
6 and 17, as shown by the solid line, is desirable from the standpoint of safety and aesthetics;
6', 17' may be used, and it goes without saying that the effects of the present invention will not be impaired even if this is done.

In addition, in the ones shown in FIGS. 6 and 7, the molded part 16,
17 to the positions 16' and 17', the cut edges 24 and 25 of the face material will be slightly upward, so there may be a danger similar to the conventional method, but in such a case, we will discuss this later. The molded part 17 on the covering side
This problem can be solved simply by inserting a waste folded portion 26 of a desired angle at the tip of the .

Note that the position of the seam welding surface portion 20, which is formed in a part of the molded parts 16 and 17, with respect to the whole molded part is from the crease in the middle to the tip of the shape shown in FIG. Although it can be placed anywhere on the entire molded part, it is usually in the range from the middle to the tip. Moreover, both molded parts 16 and 17 are spaced 30 at the base between them.
It is preferable to use a shape that allows for.

9 to 12 show various shapes of the hanger 15, in which the shape of the molded part of the face material is the sixth,
When molded in the state shown in FIGS. 7 and 8, the molded parts are molded into shapes corresponding to these molded parts, respectively.

However, these hangers are not absolutely necessary.

In other words, as shown in Figure 5, this hanger is necessary in conventional construction work in which the facing material 14 is stretched over the roofing board to create a waterproof roof, but it is necessary to install only thin metal plates joined by multiple seam welding. This is not necessary in cases where the metal membrane is assembled and then lifted into the air to form a roof made entirely of metal.

Next, the molded part will be explained based on FIGS. 13 to 48 about the various face materials molded into the shapes shown in FIGS. 6, 7, and 8, and the state in which they are pasted together by seam welding. do.

In addition, the same parts in each figure are given the same reference numerals, 14 is a panel of the type in which panels of the same shape are successively pasted together, 14' is the bottom of the panel, and 16 is a sheet. 17 is the molding part on the cover side, 24 is the cut on the paper side of the face material, 25 is the cut on the cover side of the face material, 26 is the waste folded part, 14A to 14C are the paper side material. It is of the type in which the covering side material and the side material are separate, 14A is the surface material on the paper side, 14B,
14C indicates the facing material on the covering side.

First, in FIGS. 13 and 14, the molded portion is molded in the state shown in FIG. 6, and in the case of the molded portion shown in FIG. 14, a wasted folded portion 26 is provided on the covering side. When these face materials shown in FIGS. 13 and 14 are pasted together, the state shown in FIGS. 33 and 34 is obtained.

15 and 16, the molded portion is molded in the state shown in FIG. 7, and in the case of the one shown in FIG. 16, a wasted fold portion 26 is provided on the covering side. When these face materials shown in FIGS. 15 and 16 are pasted together, the state shown in FIGS. 35 and 36 is obtained.

Further, in FIGS. 17 and 18, the molded portion is molded in the state shown by the solid line in FIG. 8, and in the case of FIG. 18, a waste folded portion 26 is provided on the covering side. When these face materials shown in FIGS. 17 and 18 are pasted together, the state shown in FIGS. 37 and 38 is obtained.

Further, in FIGS. 19 and 20, the molded portion is molded in the state shown by the two-dot chain line in FIG. 8, and in the case of FIG. 20, a wasted fold portion 26 is provided on the covering side. When these face materials shown in FIGS. 19 and 20 are laminated together, the state shown in FIGS. 39 and 40 is obtained.

21, 22, and 23, the molded portions are molded in the state shown in FIG. 6, and in the case of the molded portion shown in FIG.
is provided.

Then, if the ones in Figures 21, 22 and 21, 23 are pasted together as a pair, a fourth
The state shown in FIGS. 1 and 42 is reached.

24, 25, and 26, the molded portions are molded in the state shown in FIG. 7, and in the case of the molded portion shown in FIG.
is provided.

Then, if the ones in Figures 24, 25 and 24, 26 are pasted together as a pair, a fourth
The state shown in Figures 3 and 44 is reached.

27, 28, and 29, the molded portions are molded in the state shown by the solid line in FIG. 8, and in the case of the molded portion shown in FIG. is provided.

Then, if the ones in Figures 27, 28 and 27, 29 are pasted together as a pair, a fourth
This results in the state shown in Figures 5 and 46.

Furthermore, the molded parts shown in FIGS. 30, 31, and 32 are molded in the state shown by the two-dot chain line in FIG. A portion 26 is provided.

Then, if the ones in Figures 30, 31 and 30, 32 are pasted together as a pair, a fourth
This results in the state shown in Figures 7 and 48.

As described above, when the seam welding of the face material is performed by the method of the present invention, the shape of the molded part of the face material can be selected from among various types depending on the purpose or the customer's request. It becomes possible. In the present invention, the overlapping state of the molded parts 16 and 17 includes a state in which there is a gap 30 at the base between them.

Furthermore, when the shape of the molded part is made as shown by the solid lines in FIGS. 6, 7, and 8, the rear material 14 with the molded part seam-welded is folded from the crease 13 as shown in FIG. Even when lifting, the molded part can be folded up as it is.

Fig. 50 shows the cross-sectional shape of a rod-shaped cathode; (a) is rectangular, (b) is a shape with a curved upper surface, (c) is a shape with triangular peaks on the left and right sides, ( D) shows the L-shape. However, the cross-sectional shape of the cathode depends on the shape of the molded part of the face material and the seam welding method (see
Since it is determined by (A) or (B) in the figure, it is not necessarily necessary that this corresponds to the shape of the molded part.

As explained above, in the seam welding method of the present invention, in both cases A and B in FIG.
is at an angle other than a right angle to the bottom surface of the panel 14, and even during seam welding, the seam welding surface portion 20 is parallel to or inclined to the bottom surface of the panel 14.

That is, in the seam welding method of the present invention, seam welding is performed in a state in which the anode in contact with the seam welding surface portion 20 is at an angle other than zero degrees with respect to the surface material, and after seam welding, the plate of the formed portion is The cuts 24 and 25 are the bottom surface 1 of the facing material 14.
It never points upward at right angles to 4'.

In this way, even after seam welding, the face material 14
Since the longitudinal cuts 24 and 25 are slanted or directed downward, there is no risk or loss of aesthetics as in the conventional case, and as a result, the formed part 1 is not cut after seam welding as in the conventional case.
There is also no need to cover 6 and 17 with a cap.

Furthermore, by performing the seam welding of the face material by the method of the present invention described above, it is possible to adopt a wide variety of shapes for the molded part of the face material. This makes it possible to perform work in areas that would not be possible using welding methods, as well as work that is aesthetically pleasing in accordance with customer requests.

In addition, the welding surface material that can be applied to the implementation of the present invention has a shape of the molded part that is suitable for implementation of the seam welding method of the present invention, and also has the effects of the seam welding method and the conventional seam welding method. This makes it possible to construct completely waterproof roofs, walls, floors, gutters, etc. using metal membranes that are inexpensive and have excellent aesthetic appeal, without requiring such caps.

Furthermore, even when folding up the facing material perpendicular to the molded part after seam welding, in most cases the work of folding down the molded part, which is conventionally done, can be eliminated, making this work easier and resulting in a cleaner finish. It is.

[Brief explanation of the drawing]

FIGS. 1 to 4 are conventional explanatory diagrams,
Fig. 1 is an explanatory diagram for waterproofing roof surface materials by seam welding, Fig. 2 is a perspective view for explaining seam welding, Fig. 3 is a diagram of the molded part covered with a cap,
Fig. 4 is a state diagram of folding up the end of the face material after seam welding, Fig. 5 to Fig. 50 show embodiments of the present invention, and Fig. 5 is an explanation of the seam welding method. Figures 6 to 8 are explanatory diagrams of the state of the molded part of the face material, Figures 9 to 12 are perspective views of the hanger, and Figures 13 to 20 are 1 of one face material.
A perspective view of a seam welding face material in which a forming part for the papermaking side is provided on one side and a forming part for the covering side is provided on the other side. 33 to 40 are perspective views of the facing material in which the facing material and the facing material provided with the molded portions on the covering side are pasted together as a pair, and FIGS. FIGS. 41 to 48 are perspective views of the panels shown in the drawings being laminated together, and FIGS. 41 to 48 are perspective views of the panels shown in FIGS. A perspective view, FIG. 49 is a state diagram with the end of the face material folded up after seam welding, and FIG. 50 is a cross-sectional view of the cathode. 1 is a roofing board, 2 is a hanger, 3 is a facing material, 4 is a molding part, 6 and 7 are electrodes, 8 is a seam welding machine, 10 is a cut end of the facing material, 11 is a cap, 14 is a facing material, 15
16 is the molding part on the papermaking side, 17 is the molding part on the covering side, 19 is the anode, 20 is the seam welding surface part, 2
1 is the anode support body, 24 and 25 are the cut ends of the face material,
26 is a waste folded part, 18 is a cathode, and 27 and 28 are cables.

Claims (1)

[Claims] 1. A thin plate having an appropriately shaped folded part on at least one side in the longitudinal direction, and configured such that the seam welded surface part formed within the formed part has an angle other than a right angle with respect to the face material itself. has a seam welding face material on one side of the seam welding face material, and a fold-up molded part of an appropriate shape on at least one side in the longitudinal direction, and the molded part is formed on one side of the seam welding face material on one side. The seam welding face material on the other side of the thin plate formed by folding and overlapping molded parts is arranged so that both molded parts overlap, and a rod-shaped cathode is placed on the lower surface of the inclined side of the overlapping molded parts. seam welding of thin plates, characterized in that seam welding is carried out by inserting the anode into the overlapping molded parts, and then moving the disc-shaped anode from the outside of the overlapping molded parts to the seam welding surface formed in the molded parts while pressing it. Method.