JPH0740491U - Cup-shaped container - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a cup-shaped container in which, when the lid is opened and then re-closed, it becomes different from the unopened state, thereby providing a tamper-proof function to the container. The purpose is to [Structure] A thin skirt portion 26 is continuously provided at an edge portion on an outer peripheral side of an engagement groove 23 of a lid body 11 for receiving a curl portion 20 formed by winding an opening edge portion 12 of a container body 10 to the outside. After the curl portion 20 is introduced into the engagement groove 23, the skirt portion 26 is narrowed down by the heated jig 30.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cup-shaped container, and more particularly to a cup-shaped container including a container body formed in a cup shape and having an upper opening, and a circular lid that closes the upper opening of the container body.

[0002]

[Prior art]

 Cup-shaped containers are widely used for supplying various kinds of frozen desserts and foods. Such a container is formed by winding a fan-shaped sheet-shaped material mainly made of paper into a cup shape, and closing the bottom opening with a bottom plate, as well as a circular lid to close the upper opening. It is designed to be attached.

[0003]

[Problems to be solved by the device]

 When filling frozen desserts and various foods into such cup-shaped containers for distribution, at the time of distribution or at the point of sale at the store, the lid that closes the upper opening is removed and the products inside are withdrawn. Or, again, there is a possibility of causing mischief or an accident such as putting a foreign object inside.

Such mischief and accident cannot be prevented by a cup-shaped container in which the lid is formed by a circular paperboard and the paperboard is attached to the upper opening. That is, once removed, it must not be reattached. Therefore, an aluminum foil laminated with a synthetic resin film is directly sealed to the peripheral edge of the upper opening.

However, there is a problem that a lid made of a synthetic resin, particularly a lid made of a molded body, cannot have the above-mentioned function for preventing tampering. That is, the conventional lid made of synthetic resin merely covers and does not have a function of preventing tampering. Therefore, when such a lid is used, it is necessary to use it together with other sealing means, and there is a problem that the cost increases.

The present invention has been made in view of the above problems, and provides a cup-shaped container having a lid body that is formed into a predetermined shape and has a function of preventing tampering. The purpose is to do.

[0007]

[Means for Solving the Problems]

 The present invention comprises a container body formed in a cup shape and having an upper opening, and a lid body closing the upper opening of the container body. The opening edge of the container body is rolled up to the outside. A curl portion is formed, and an engaging groove formed on the outer peripheral side of the lid body and opened downward is engaged with the curl portion, and further, an edge portion on the outer peripheral side of the engaging groove of the lid body. A cup-shaped container characterized in that a thin skirt portion is continuously provided to the engaging groove, and the curl portion is engaged in the engaging groove to narrow the skirt portion to close the engaging groove. It is a thing.

[0008]

[Action]

 Therefore, the container body is filled with contents, and a lid is attached so as to cover the upper opening, and the engaging groove on the outer peripheral side of this lid is rolled up at the opening edge of the container body. And the thin skirt portion of the edge portion on the outer peripheral side of the engaging groove of the lid is narrowed down to close and seal the engaging groove. Therefore, if the lid is removed during the physical distribution stage or when the product is sold, the curl part will come out of the engaging groove of the lid through the narrowed skirt part, and It becomes impossible to seal.

[0009]

【Example】

 FIG. 1 shows a cup-shaped container according to an embodiment of the present invention. The cup-shaped container is a container body 10 wound with a fan-shaped sheet-shaped material having paper as a main material, and a synthetic resin. It is composed of a molded body, and is composed of a lid 11 that closes the upper opening 12 of the container body 10.

As shown in FIG. 5, the lower end side of the body of the container body 10 is folded back inward to form a folded portion 15, and the peripheral wall portion 17 on the outer peripheral side of the bottom plate 16 is formed into the folded portion 15 described above. And the body portion of the container body 10 are sandwiched. As a result, the bottom plate 16 closes the bottom of the container body 10. Further, the container body 10 is configured such that the peripheral edge portion of the upper opening 12 is wound outward to form a curl portion 20.

On the other hand, the lid 11 is made of a synthetic resin molded body as shown in FIGS. 2 to 4, and an engaging groove 23 having a U-shaped cross section extending in the circumferential direction is formed in the outer peripheral side portion thereof. Has been formed. Ribs 24 extending in the circumferential direction are formed on the upper surface of the engaging groove 23 as shown in FIGS. 2 and 4. As shown in FIGS. 3 and 4, vertical ribs 25 are intermittently formed inside the engaging groove 23 at intervals of 30 °.

Further, a thin skirt portion 26 that hangs down is formed at an edge portion on the outer peripheral side of the engagement groove 23. Here, the wall thickness of the skirt portion 26 is 0.2 to 0. It has a thickness of 4 mm, and enables narrowing down at a low temperature of 100 to 150 ° C, as described later.

With the above-mentioned structure, the container body 10 is filled with frozen desserts and other various foods, and the lid 11 is attached so as to close the upper opening 12. As shown in FIG. 5, the curl portion 20 on the outer peripheral side of the container body 10 is received in the engaging groove 23 of the lid body 11, so that the upper opening 12 is closed by the lid body 11.

Moreover, the cup-shaped container of this embodiment uses the narrowing jig 30 shown in FIG. 5, and the skirt portion 26 is heated at a low temperature of 100 to 150 ° C. by the jig 30 as shown in FIG. The skirt portion 26 is slanted inward, and the lower open portion of the engagement groove 23 on the outer peripheral side of the lid 11 is closed.

As described above, in the container according to the present embodiment, the thin skirt portion 26 formed in the edge portion of the outer peripheral side of the engagement groove 23 of the lid 11 is narrowed by the narrowing jig 30. By doing so, the open portion of the engaging groove 23 is closed. Therefore, when the lid 11 is opened, the curl portion 20 of the container body 10 is disengaged from the engagement groove 23 while the skirt portion 26 is expanded.

However, when the container body 10 is once closed again by the lid 11, the thin skirt portion 26 hits the curl portion 20 of the container body 10, and the curl portion 20 is inserted into the engaging groove 23. It will be pushed. That is, with such a container, it becomes extremely difficult to make the skirt portion 26 in the same state as before opening when resealing. Therefore, when the lid 11 is once opened and then resealed, it can be surely visually judged that the lid 11 is clearly different from the unopened one.

Therefore, by providing such a skirt portion 26, it is possible to more reliably prevent the mischief such as the withdrawal of the contents at the distribution stage, or the inclusion of foreign matter during the sale of the product. become. That is, the tamper-proof function can be imparted to the cup-shaped container by narrowing down the skirt portion 26 provided at the outer peripheral edge portion of the engaging groove 23 of the lid body 11. Moreover, since no separate sealing means is required, the packaging cost does not increase.

[0018]

[Effect of device]

 As described above, according to the present invention, the thin skirt portion is continuously provided at the outer peripheral edge of the engaging groove formed on the outer peripheral side of the lid and opened downward, and the container is provided in the engaging groove. The upper opening of the container main body is closed by the lid while the curl portion of the main body is engaged, and the engagement groove is closed by narrowing down the skirt portion.

Therefore, if the upper opening of the container body is resealed by the lid after it has been opened once, the narrowed skirt part will enter the engagement groove, and as a result, it will be resealed in the same state as before opening. Will be blocked. Therefore, once opened, the shape in the case of re-sealing becomes largely different from the state before the first opening, and it becomes possible to provide a cup-shaped container having a function of preventing tampering.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a cup-shaped container.

FIG. 2 is a plan view of a lid body.

FIG. 3 is a bottom view of the lid body.

FIG. 4 is a vertical cross-sectional view of a lid body.

FIG. 5 is a vertical cross-sectional view showing a state in which a lid is attached to the upper part of the container body and the skirt is narrowed down.

[Explanation of symbols]

 10 Container Main Body 11 Lid Body 12 Upper Opening 15 Folding Part 16 Bottom Plate 17 Circumferential Wall Part 20 Curl Part 23 Engaging Grooves 24, 25 Ribs 26 Skirt Part 30 Jig for Narrowing

Claims (1)

[Scope of utility model registration request] 1. A container body, which is formed in a cup shape and has an upper opening, and a lid that closes the upper opening of the container body. The opening edge of the container body is rolled up to the outside. A curl portion is formed, and an engaging groove formed on the outer peripheral side of the lid body and opened downward is engaged with the curl portion, and an edge portion on the outer peripheral side of the engaging groove of the lid body A cup-shaped container characterized in that a thin skirt portion is continuously provided in the engagement groove, and the engagement groove is closed by narrowing down the skirt portion while the curl portion is engaged in the engagement groove.