JP2002068231A - Seal of 18-liter can - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal which can be recognized to have not been unsealed at a glance from its appearance when a 5-gallon can or a pail can is used as a container for putting a material to be used for a foodstuff or a pharmaceutical product. SOLUTION: When a mouthpiece is to be attached to a top plate, a mouthpiece with a synthetic resin film seal processed to be mounted is caulked with a mouthpiece body for use. When a conventional JIS-type mouthpiece is to be used, the mouthpiece is fitted into the top plate, and a film seal which has been processed before caulking is interposed and caulked for use.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a seal used for a metal container such as a 5-gallon can or a pail, using a synthetic resin film. After setting, open the seal made of synthetic resin film using hot or hot air, seal the seal with different shrinkage ratios in multiple layers so that it can be easily cut off, so as to securely enclose the cap on which the stopper ring is set. It is. To open the cap, it is a structure that does not leave unless the synthetic resin film seal is broken, so if you open the cap with mischief or maliciously, you can easily look at the outside from the outside, at a glance It is designed so that you can check it.

[Brief description of the drawings]

FIG. 1 External view of a 5-gallon can

FIG. 2 is a cross-sectional view in which a film seal is set on a top plate.

FIG. 3 is a cross-sectional view in which a film seal and a base are set on a top plate.

FIG. 4 is a cross-sectional view showing a film seal and a base set on a top plate.

FIG. 5 is a cross-sectional view in which a cap and a stopper ring are set and the film is sealed.

FIG. 6 is a sectional view in which a film seal is attached to the base body.

FIG. 7 is a sectional view in which a film-sealed base is attached to a top plate.

FIG. 8 is a cross-sectional view of a top plate to which a film-sealed base is attached and caulked.

FIG. 9 is a cross-sectional view in which the cap and the opening prevention ring are set and the film is sealed.

FIG. 10 is a cross-sectional view in which a plastic die is sealed with a film.

FIG. 11 is a sectional view in which a film is sealed on a base by a plastic forming machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top plate 2 Sealing of synthetic resin film 3 Base 4 Cap 5 Opening stop ring 6 Base with film sealing 7 Plastic

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[Procedure amendment]

[Submission date] November 1, 2000 (200.11.
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (1)

[Claims] 1. A seal using a synthetic resin film so that once a cap is removed from a metal container such as an 18-liter can or a pail, it can be distinguished from the appearance.