JPS587535B2 - Liquid-tight top and bottom plates for metal irons - Google Patents

Description

[Detailed description of the invention] The present invention relates to a metal liquid-tight can.

Conventionally, metal cans were made by joining the top and bottom plates and the can body with a double seam, and then filling them with solder to make them liquid-tight. However, there were drawbacks such as corrosion and pollution problems.

In order to eliminate this drawback, attempts were made to use a recently developed high-performance synthetic resin adhesive instead of solder and apply it to the top surface of the double seam joint for can manufacturing.
With this, it was impossible to form a can that was liquid-tight even for liquids that easily leaked, such as thinner and ether.

The present invention was made in view of this, and it is an object of the present invention to provide a metal liquid-tight can in which the joint with the seam of the can body, where liquid is most likely to leak in can manufacturing, is completely liquid-tightly joined.

A detailed explanation will be given below with reference to the drawings.

Figures 1 and 2 show an embodiment of a top and bottom plate that is joined to the inner surface of the top and bottom plate 1, that is, both ends of the can body, by a double seam. A synthetic resin adhesive 4 is applied in the form of a tape to the double seam piece 3.

However, in carrying out the process, the tape-shaped synthetic resin adhesive 4 is applied in two layers in an overlapping manner at the corner 2 of the double seam piece 3 facing the seam 5 for joining the can body into a cylindrical shape. Then, reduce the amount of glued 4 itself to 2.

As described above, the method of applying the synthetic resin adhesive 4 in a tape form to the inner periphery of the top and bottom plates 1 can be, for example, by moving the pouring nozzle along the inner periphery of the top and bottom plates 1 and applying the adhesive. On the other hand, the top and bottom plates 1 may be rotated to apply the coating, and the synthetic resin adhesive 4 may be epoxy resin, nylon No. 12, Araldite (trademark), or other synthetic resin adhesive.

Since the present invention is made as described above, when the top and bottom plates 1 are joined to the flanges at both ends of the can body by double seams, the adhesive 4 applied to the double seam pieces 3 on the periphery of the top and bottom plates 1 is applied by double seam bonding. Interposed between the top and bottom plate 1 and the flange at the end of the can body, it strengthens the joint of the double seam and completely blocks even minute holes, making it liquid-tight and preventing leakage of thinner, ether, etc. In order to prevent liquids from leaking easily and to strengthen the connection between the top and bottom plates 1 and the can body, the handle 10 is equipped with a temporary can body in the center of the top plate.
It is absolutely safe to carry around.

In other words, when a liquid is stored and lifted into a can, all of its weight is applied to the top and bottom plates, which acts in the direction of separating the joint between the top and the can body. It is safe because the seam is joined by strong adhesive, and the base plate at the bottom bears all the weight of the liquid inside, but even in this case, the joint between the base plate and the can body is strong and It is liquid-tight so it is held safely and no solder is used so there is no corrosion.
There is no problem of pollution.

Moreover, since the amount of adhesive 4 was increased at the corner 2 of the double seam piece 3 corresponding to the seam 5 of the can body, when the can body and the top and bottom plates are seamed, the stepped part of the can body joint and the top and bottom plates are Even if a minute gap is formed between them, the gap can be filled with the increased amount of adhesive, and leakage can be reliably prevented without creating a gap at the intersection between the joint 5 and the top and bottom plates, which are the most likely to leak. It has excellent effects.

[Brief explanation of drawings]

FIG. 1 is a plan view of the top and bottom plates, FIG. 2 is a sectional view taken along the line XX in FIG. DESCRIPTION OF SYMBOLS 1... Top and bottom board, 2... Corner, 3... Piece for double seam, 4... Synthetic resin adhesive, 6... Can body, 9...
...Flange.

Claims (1)

[Claims] 1 A metal piece in which the double seam piece 3 provided on the periphery of the top and bottom plate 1 is applied onto the outwardly curved flange 9 at the end of the rectangular cylindrical can body 6 and the top and bottom plate 1 is joined to the end of the can body 6. In Kaikan,
Glue 4 is applied to the inner surface of the double seam piece 3 of the top and bottom board 1 all at once, and at the seam 5 where the side edges of the can body 6 are joined, among the four corners of the top and bottom board 1. Corresponding corner 2
The amount of the adhesive 4 itself is doubled, and the can body 6 is placed between the double seam piece 3 and the flange 9 at the seaming part.
and the top and bottom plates 1 are interposed with four layers of adhesive to liquid-tightly join the can body 6 to the seam 5 at both ends of the seam 5. The metal is characterized in that an increased amount of adhesive is used to fill the seam-fastening space at both ends of the seam 5 of the can body 6. Liquid-tight can.