JP2003054618A - Vessel with sealing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vessel which is unnecessary for heating when sealing the vessel capable of sealing with a material of the quantity as small as possible even when the vessel is wide-mouthed, and capable of indicating that the vessel is unsealed when it is once unsealed. SOLUTION: A male screw 12 is provided on an outer circumference of a mouth 11 of the vessel, a projection 13 having an inclined surface leading from a screw groove to a thread and an end face cut-off toward the center is formed on a terminating end of the male screw 12, a female screw 15 is formed on an inner circumferential surface of a cap 14, a locking piece 16 hooked to the projection 13 is provided on the leader extension line of the female screw 15, the locking piece 16 is provided in a frame 18 weakly connected to a circumferential surface of the cap 14, and a pull-ring 19 is added to the frame 18 as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container with a sealing function, which can be used to determine whether or not it has been opened.

[0002]

2. Description of the Related Art Products that are shipped by filling beverages and foods in containers are basically not opened until they reach the consumer, and the quality when manufactured is maintained as it is, and foreign substances are not mixed. It is necessary to prevent and maintain the food safety of consumers.

Therefore, a product in which a container is filled with a beverage or food is sealed by applying a heat-shrinkable film to the part of the container body and the lid, and to open the product, the heat-shrinkable film is opened unless the film is removed. However, once opened, the heat-shrinkable film is removed so that it can be immediately confirmed that the film has been opened.

Another example is the so-called P shown in FIG.
Like the ET bottle 50, an annular cutout 52 is formed at the lower end periphery of the cap 51 so that it can be separated from the hem 53, and the cap 51 is screwed into the mouth 54 of the bottle body 50, and when screwed. There is a structure in which the rib 55 formed on the inner periphery of the hem 53 of the cap 51 is hooked on the annular step portion 56 formed on the mouth portion 54 of the bottle body 50.

[0005]

In the above-mentioned prior art, the former is required to apply a certain amount of heat to shrink the heat-shrinkable film, and to apply it to a beverage or food to be filled that is deteriorated by heat. I can't.

The latter is suitable for a container having a small diameter such as a PET bottle, but in a container having a large diameter, the amount of resin in the cap hem that is cut off and is unnecessary after opening is large, which is a problem from an economical point of view. It is also found that as the diameter of the cap increases, a large couple of force is required to separate the cap body and the hem by the annular notch, so that it is not suitable for a large diameter.

Therefore, according to the present invention, it is not necessary to heat the container to perform the sealing treatment, and even if the container has a wide mouth, the sealing treatment can be performed by using as little material as possible. It is an object to provide a container that becomes.

[0008]

In order to solve the above-mentioned problems, the present invention has a male screw 12 on the outer circumference of a mouth 11 of a container 10.
A projection 13 having an inclined surface 13y extending from the thread groove to the screw thread and an end surface 13z cut off toward the center is formed at the end 12e of the male screw 12, and a female screw 15 is provided on the inner peripheral surface of the cap 14. A locking piece 16 hooked on the protrusion 13 is provided on the extension line of the starting end of the female screw 15, and the locking piece 16 is provided in a frame 18 weakly connected to the peripheral surface of the cap 14. If necessary, the frame 18 has a pull ring 19 attached thereto.

According to the present invention configured as described above, when the cap 14 is rotated and fitted, the locking piece 16 is caught by the end surface 13z of the projection 13 and is in a sealed state, and the cap 14 is in a sealed state when removed. Since the frame 18 provided with the engaging piece 16 must be removed together with the pull ring 19, once the cap is removed, it becomes obvious and the safety of the packaged food can be ensured.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. A male screw 12 is provided on the outer periphery of the mouth 11 of the container 10, and a projection 13 having an inclined surface 13y from the thread groove to the thread and a cut-off end surface 13z toward the center is formed at the end 12e of the male screw 12. ing.

A female screw 15 is provided on the inner peripheral surface of the cap 14, and a locking piece 16 which is hooked on a protrusion 13 formed at the end of the male screw 12 is provided on the extension line of the starting end of the female screw 15.
Is provided.

The locking piece 16 is provided in a frame 18 weakly connected to the peripheral surface of the cap 14 by a point connection 17, and a pull ring 19 is attached to the frame 18, and the point connection is made by pulling up the pull ring 19. It is designed so that it can be torn off from the part that was marked 17. Here, instead of the point connection 17 of the frame 18, it is also possible to make a groove around the frame 18 so as to make it thin and connect.

The pull ring 19 is normally in a state of falling along the outer peripheral surface of the cap as shown in each of FIGS. 1 (a), 2 (a) and 3, and the cap of the pull ring 19 is maintained in order to maintain this state. The protrusion 20 is provided on the surface of the outer peripheral surface 14
Is provided, and the protrusion 20 is provided with a hole 21 provided in the frame 18.
It is designed to be click-stopped.

It should be noted that the protrusion 20 is lengthened to make the hole 21
It is also possible that the tip of the penetrating portion is hooked on the protrusion 13, and here, the locking piece 1
When the position of 6 and the position of the protrusion 20 are displaced, the tightness of the cap 14 can be adjusted depending on whether packing is inserted between the mouth 11 of the container 10 and the cap 14 or not. become.

Next, the operation of the above embodiment will be described. As shown in FIG. 4A, when the cap 14 is screwed onto the container 10 as shown in FIG.
The locking piece 16 provided on the upper side of the projection 13 crosses the projection 13 through the inclined surface 13y and is caught on the end surface 13z as shown in FIG. 4B, so that the cap 14 cannot be opened.

The state in which the cap 14 is covered as described above is shown in each of FIGS. Cap 1 from this state
In order to open 4, the pull ring 19 is pulled up as shown in each (b) of the figure, and the frame 18 is separated from the cap 14 together with the pull ring 19 as shown in each (c) of the figure. It is possible to rotate the cap 14 in the direction to open the cap 14 without being caught.

In order to open the cap 14 as described above, it is necessary to separate the frame 18 together with the pull ring 19, and once the frame 18 together with the pull ring 19 is separated from the cap 14, it cannot be returned to the original state, so it is obvious that the cap 18 has been opened.

[0018]

As described above, the container with a sealing function according to the present invention is put in a sealed state at the same time when the cap is put on, and the seal must be removed to open the cap, and once the cap is opened. , It will be obvious that you can ensure the safety of the food contained.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a container with a sealing function according to the present invention and a sectional view taken in the direction of an arrow, where (a) is before opening, (b) is during opening,
(C) shows the state after opening.

FIG. 2 (a) is a perspective view of the cap portion, showing (a) before opening;
(B) shows the state in the middle of opening, and (c) shows the state after opening.

FIG. 3 is a perspective view before covering the container with a cap.

4A and 4B are explanatory views in which the container is covered with a cap and sealed, FIG. 4A shows a state immediately before sealing, and FIG. 4B shows a state immediately after sealing.

FIG. 5 is a front view of a conventional container with a cap portion notched.

[Explanation of symbols]

10 containers 11 mouth 12 Male screw 13 Protrusion (end of male screw) 13y slope 13z end face 14 cap 15 female screw 16 Locking piece 17-point connection 18 frames 19 pull ring 20 protrusions (of pull ring) 21 holes (pull ring fits)

Claims (7)

[Claims] 1. A male screw 12 is provided on the outer periphery of a mouth portion 11 of a container 10.
A projection 13 having an inclined surface 13y extending from the thread groove to the screw thread and an end surface 13z cut off toward the center is formed at the end 12e of the male screw 12, and a female screw 15 is provided on the inner peripheral surface of the cap 14. A locking piece 16 hooked on the protrusion 13 is provided on the extension line of the starting end of the female screw 15, and the locking piece 16 is provided in a frame 18 weakly connected to the peripheral surface of the cap 14. Functional container. 2. The container with a sealing function according to claim 1, wherein a pull ring 19 is attached to the frame 18. 3. The container with a sealing function according to claim 1, wherein a point connection 17 is used as a means for weakly connecting the periphery of the cap 14 and the frame 18. 4. The container with a sealing function according to claim 1 or 2, wherein a groove is formed around the frame 18 as a means for weakly connecting the periphery of the cap 14 and the frame 18 to make a thin connection. 5. The protrusion 20 is provided on a surface of the pull ring 19 facing the peripheral surface of the cap 14, and the frame 18 is provided with a hole 21 for receiving and fixing the protrusion 20. Container with a sealing function. 6. The container with a sealing function according to claim 2, wherein the protrusion 20 is lengthened to penetrate the hole 21, and the tip of the penetrated protrusion 20 is caught by the locking piece 16. 7. The container with a sealing function according to claim 2, wherein the projection 20 and the locking piece 16 are displaced from each other with respect to the projection 13.