JPH0211321Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention mainly relates to a can opening sealing device capable of sealing and sealing the opening of a can containing food, etc. (for example, soy sauce, edible oil, etc.).

"Conventional technology" Traditionally, cans containing food, etc. have been made with a
It was necessary to seal the mouth of the can body quite tightly.

However, if there is a gap between the lower end of the cap that closes the mouth of the can body and the lower end of the protector that seals it, even if a screwdriver or the like is inserted through the gap and the can body is pried, there will not be any visible traces. , there was a risk of fraud.

In addition, with sealing devices in which the cap and can body are covered with heat-shrinkable seals, the seals are extremely thin and are vulnerable to external shocks, making it easy for the caps to open inadvertently. There was a drawback that I said I couldn't do it.

``Purpose of the present invention'' In view of the above-mentioned drawbacks of the conventional technology, the present invention is capable of ensuring airtight closure and sealing of the cap without accidentally opening it, and also eliminates any traces when the lower end of the protector is pried open. Visually visible and refillable
To obtain a can opening sealing device that prevents unauthorized acts such as sampling and mixing of foreign matter.

"Means for Achieving the Object of the Present Invention" The present invention consists of a mouth part provided on a part of a can, a cap that closes this mouth part, and a structure that makes this cap airtight and prevents it from being opened. In a can mouth sealing device comprising a protector that fits externally, the angle of the stepped portion around the mouth of the can body is at least approximately 90 degrees.
By providing a small recessed step with a diameter of less than 100°, the outer edge of the lower end of the protector is brought into contact with the base of the small recessed step so that when the lower end of the protector is pried, traces thereof can be seen. , the above objective has been achieved.

"Embodiments of the present invention" The present invention will be described in detail below with reference to embodiments shown in the drawings.

In the embodiment shown in FIG. 1, 1 is a can body containing food, etc. A part of this can body 1 is integrally provided with a spout 2 for filling and dispensing the contents. The cap 3 that closes the mouth part 2 is
A metal metal having a hooking piece 5 having elasticity on its side periphery that locks into a recess 4 provided in the metal, and the hooking piece 5 opens and closes in conjunction with the recessing and protrusion of the upper surface 6. made of material.

Reference numeral 7 denotes a sheet-like elastic body that is built into the cap 3 and can come into contact with the upper surface of the mouth 2 to ensure airtightness.

A protector 8 made of elastic plastic material and having a certain thickness is fitted onto the cap 3. The cap 3 is tightly fitted onto the outside so as to be press-contacted with the portion 2 to make the cap 3 airtight and to prevent the cap from being opened inadvertently.

Further, an annular puller 9 is integrally provided on the upper wall of this protector 8, and the lower end 1 of the side wall
0 is in contact with a small recessed step 11 formed at a right angle around the mouth 2 of the can body 1, and the outer edge 12 of the lower end 10 of the side wall is in contact with the base 13 of the small recessed step 11.
It is formed so as to come into contact with.

In the above embodiment, the protector 8 was described as being firmly fitted onto the outside after the opening 2 of the can body 1 was closed by the cap 3. It is also possible to combine it with the cap 3 in advance and integrate it with the protrusion 14, and to attach it to the mouth part 2 by utilizing its elasticity.

In this embodiment configured as above,
Cap 3 has a somewhat thick protector 8
The protector 8 prevents the top surface 6 of the cap 3 from inadvertently denting and opening even if there is a load from above or a shock from the side, and the cap 3 is securely closed. The mouth part 2 cannot be easily opened unless it is removed using the handle 9 on the top surface.

Further, since the lower end 10 of the side wall of the protector 8 is in contact with the upper surface of the can body 1, it supports the load from above, and the outer edge of the lower end 10 of the side wall is supported without damaging the sealing of the cap 3. 12 is in contact with the base 13 of the small recessed step 11, so there is no gap to insert the tip of a screwdriver, etc., and even if the tip is pried with a screwdriver, the traces will be visible.Especially, when using high-impact materials, it is difficult to apply concentrated pressure. It is extremely easy to discolor to white when folded or folded, so if it is colored other than white, it will be easier to detect fraudulent attempts such as refilling the contents.

Next, different embodiments of the present invention shown in FIGS. 2 to 5 will be explained.

In the description of these embodiments, the same components as those of the above embodiments are denoted by the same reference numerals and redundant explanations will be omitted.

The main difference between the embodiment shown in FIG. 2 and the previous embodiment is that the mouth 2A is separate from the can body 1A and is attached to the can body by caulking, and the small recessed step 11A is grooved. The structure is similar in that the sealing band 16 is formed integrally with the lower part of the side wall of the protector 8A and comes into contact with the small recessed step part 11A through the joint part 15. The following effects can be obtained.

The main difference between the embodiment shown in FIG. 3 and the previous embodiment is that the base 1 of the small recessed step 11B of the can body 1B is
3B is formed into a hook shape, protector 8
B is that a cover body 17 that abuts inside the small recessed step portion 11B is integrally formed on the side periphery, and even with this configuration, similar effects can be obtained.

The embodiment shown in FIG. 4 is mainly different from the previous embodiment in that the small concave stepped portion 11C of the can body 1C is formed by raising the can body 1C, and the elastic body 7A is shaped like a bottomed dish. The protector 8C has an appropriate number of reinforcing ribs 18 integrally formed on the side wall, and the support band 19 that abuts inside the small recessed step 11C is integrally formed at the lower part of the side wall of the protector 8C. In that the lower end 20 of the support band 19 that contacts the can body 1C is bonded with an adhesive, even with this configuration, the same effects as in the above embodiment can be obtained, and The reinforcing ribs 18 and the support band 19 make it stronger against loads and impacts from above or from the sides, and the cap 3 can be reliably protected.
Once the package is opened, there will be obvious traces of the adhesive on the adhesive.

The protector 8C of this embodiment is made of a synthetic resin material that can be bonded with an adhesive (for example, vinyl chloride, styrene, styrene impact, etc.).
It is molded from acrylic, ABS resin, etc.).

The embodiment shown in FIG. 5 is mainly different from the previous embodiment in that the elastic body 7B is molded from a synthetic resin material and has a cushion edge 21 that sandwiches the upper edge of the mouth 2, and the protector 8D The support band 19A at the lower side wall of the protector 8D has a handle 9A integrally formed on its outer periphery, the lower end 20A of the support band 19A is welded with a hot iron or high-frequency heating device, and the upper wall of the protector 8D. 22 is formed to cover the top surface 6 of the cap 3, similar effects can be obtained even with this configuration, and the top wall 22 of the protector 8D covers the top surface 6 of the cap 3. Therefore, even if cans are stacked, cap 3
The marks printed on the top surface 6 of the device will not be damaged, and if transparent or semi-transparent material is used, the marks etc. can be seen from the outside.

The protector 8D of this embodiment is molded from a synthetic resin material (eg, polyethylene, polypropylene, polyamide, etc.) that can be welded.

"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.

(1) The outer edge of the lower end of the protector is brought into contact with the base of the small recessed step where the angle of the stepped portion of the can body is at least approximately 90 degrees or less, so that if the lower end of the protector is pried, the portion will be deformed or If the product is damaged, traces of damage are visible, making it difficult to perform unauthorized actions such as refilling, removing, or tampering with foreign objects.

(2) If the protector is assembled with the cap in advance and the protector is formed as a single unit to close and seal the mouth, it is easy to attach the protector to the mouth.

(3) Providing an appropriate number of reinforcing ribs on the side walls of the protector will make it stronger against loads and impacts from above or from the sides, and will reliably protect the cap.

(4) If the top wall of the protector covers the top surface of the cap, marks printed on the top surface of the cap will not be damaged even if cans are stacked.

(5) By gluing or welding the lower end of the protector inside the small concave step of the can body, once the seal is opened, traces of the damage will remain clearly on the bonded or welded portion, and tampering can be reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
3, 4 and 5 are cross-sectional views of different embodiments of the present invention, respectively. 1, 1A, 1B, 1C... Can body, 2, 2A...
...Mouth, 3...Cap, 4...Mouth recess, 5
...Hook piece, 6...Top surface of cap, 7,7A,
7B...Elastic body, 8, 8A, 8B, 8C, 8D
...Protector, 9,9A...Handle, 10...
Lower end of side wall, 11, 11A, 11B, 11C...
Small concave stepped portion, 12... Lower end outer edge, 13, 13A,
13B...Base of small concave step, 14...Convex strip of protector, 15...Joint part, 16...Sealing band, 17
...Cover body, 18...Auxiliary rib, 19, 19A
... Support band, 20, 20A ... Lower end of support band,
21...Cushion edge, 22...Top wall of protector.

Claims (1)

[Scope of utility model registration request] In a can mouth sealing device comprising a mouth part provided on a part of the can, a cap for closing the mouth part, and a protector fitted on the outside so as to make the cap airtight and prevent it from opening, the can body A small concave step with an angle of at least approximately 90 degrees or less is provided around the mouth of the protector, and the outer edge of the lower end of the protector is shaped into the small concave step so that when the lower end of the protector is pried, traces of the step will be visible. 1. A can opening sealing device, characterized in that the device is adapted to come into contact with the base of the can opening.