JP5207173B2 - Cup-shaped container with lid and food and beverage packaging - Google Patents

Description

  The present invention is a sealing sheet in which the upper end opening of a cup-shaped container body is welded and sealed with a sealing sheet having excellent barrier properties such as an aluminum laminate sheet, and the container body is fitted with an outer fitting assembly. The present invention relates to a cup-shaped container with a lid that covers and covers a food and drink package using the cup-shaped container.

  In recent years, beverages such as coffee and tea have adopted an aseptic filling system that can maintain the taste and flavor of the contents well, and have a cup shape with a container-like flange around the container body. And a cup-shaped lid with a lid attached to the outside using a flange to protect the sealing sheet and affix a film-like sealing sheet to the opening. Containers are commonly used.

Recently, with this type of container, a cup-shaped container with a lid that can be used to open the sealing sheet with a single touch using a movable movable piece arranged on the lid and drink the contents directly from the mouth formed on the lid. Is used (see, for example, Patent Document 1).
JP 2004-359314 A

  In the case of a cup-shaped container with a lid as described above, when the sealing sheet is cut open with an opening movable piece, the sealing performance is released by the sealing sheet. Or, when carrying around with the content liquid remaining, the content liquid wraps around from the cut-out portion of the sealing sheet to the upper surface of the sealing sheet, and further leaks from the fitting portion between the flange and the peripheral edge of the lid body through the sealing sheet. There is a risk that. Therefore, in the past, protrusions were attached to the upper surface and side end surfaces of the flange, and the peripheral edge of the cover body to be externally fitted was circumferentially sealed to prevent leakage of the content liquid as described above. .

  However, in the sealing method by contact between the rigid bodies, which is formed of a hard synthetic resin, such as the flange and the peripheral portion of the lid body, there is a problem of the accuracy of the shape when the container body or the lid body is molded. The deformation due to the fitting between them cannot be sufficiently absorbed, and it has been difficult to obtain a reliable and stable seal state.

  Therefore, the present invention was devised to solve the problems related to the sealing performance of the cup-shaped container with a lid in the prior art, particularly the sealing performance after partially opening the sealing sheet. Provide a cup-shaped container with a lid that can be used with peace of mind, without the risk of liquid leakage when drinking contents, etc. The purpose is to do. Moreover, an object of this invention is to provide the food-drinks package using such a cup-shaped container with a lid.

The main configuration according to the means of the present invention for solving the above technical problem is:
A cup-shaped synthetic resin container body with a flange-like flange connected to the opening at the top of the body, a sealing sheet that is heat-sealed on the top surface of the flange to seal the opening of the container body, and an external fitting assembly on the flange In a cup-shaped container with a lid comprising a top-like cylindrical lid that covers the sealing sheet,
A concave circumferential groove is formed on the flange base at the base end of the flange,
A circumferential ridge is suspended at a position facing the concave circumferential groove on the lower surface of the top wall of the lid,
A sealing sheet thermally welded to the upper surface of the flange covers the concave circumferential groove in a bridging manner to form a bridging portion,
In the state where the lid is attached to the flange of the container body, the tip of the circumferential protrusion is configured to be in contact with the bridging portion so that the bridging portion of the sealing sheet can be bent and deformed. .

  According to the above configuration, at the time of use, even when the sealing sheet is cut open by the opening movable piece and the sealing performance by the sealing sheet is released, the top of the lid is fixed by fitting the lid to the flange. The tip of the circumferential ridge suspended from the lower surface of the peripheral edge of the wall is brought into contact with the bridging portion of the sealing sheet so that the bridging portion bends and deforms, and a reliable and stable sealing function is exhibited.

Here, the sealing sheet is in a state in which the inner circumferential side portion and the outer circumferential side portion of the concave circumferential groove are thermally welded circumferentially to the upper surface of the flange. The constrained state covers the concave circumferential groove in a bridging manner.
And when the tip of the peripheral protrusion of the lid abuts against the bridging portion of the sealing sheet when the lid is fitted on the flange, the bridging portion is in the concave circumferential groove because the sealing sheet is in the form of a film. It can be bent and deformed in a concave shape, and this bending deformation can sufficiently absorb variations in the shape related to the molding accuracy of the member and deformation due to the fitting of the lid to the flange, and exhibits a reliable and stable sealing function Even after the sealing sheet is opened, it is possible to drink the content liquid without worrying about leakage of the content liquid or carry it with the content liquid remaining.

  In addition, in the manufacturing process of products using this type of container, the container body is filled with the content liquid, a sealing sheet is welded to the flange and sealed, then the lid is plugged into the flange and the side wall is the flange side. There are many cases that fit over the end face so as to get over the end face. At this time, a large force acts, but even when such a large force acts, deformation of the bridging portion of the sealing sheet is sufficient. It can be absorbed, and the sealing function by the bridging portion between the circumferential protrusion and the sealing sheet is not impaired.

Then, a concave circumferential groove by forming the communicating設基end of the flange, after opening the sealed sheet, flange and enters the flange of the connecting設基end of the content liquid in the fitting portion between the lid It can block at the nearest part, and can prevent the leakage of the content liquid from the fitting part more effectively.

Moreover, this invention is the food-drinks package body formed by filling and sealing the food-drinks in the synthetic resin container main body in the cup-shaped container with a lid | cover of this invention demonstrated above.
Since the cup-shaped container with a lid of the present invention is very convenient, the effect of the cup-shaped container of the present invention can be enjoyed most particularly when the content liquid is used as a food or drink. Here, the form of the food and drink is not limited to the so-called liquid type, and there are also semi-liquid type, fluid type, and solid-liquid mixed type, and these are contained in the synthetic resin container body as the content liquid. .

Since the cup-shaped container with a lid and the food / beverage product package of the present invention have the above-described configuration, the following effects can be obtained.
In what has the main structure of this invention, the deformation | transformation of the shape which concerns on the shaping | molding precision of a member by the bending deformation of the bridging part of a sealing sheet, and the deformation | transformation by fitting can be absorbed enough, and a reliable and stable seal The function is demonstrated, and even after the sealing sheet is opened, the content liquid can be drunk without worrying about the leakage of the content liquid or can be carried with the content liquid remaining.

  Further, in order to assemble and fix the undercut shape, a large force is applied when the lid is externally fitted to the flange in the form of a stopper. Even when such a large force is applied, the sealing sheet Sufficient absorption can be achieved by bending deformation of the bridging portion, and the sealing function by the bridging portion of the circumferential protrusion and the sealing sheet is not impaired.

Then, by forming a concave circumferential groove in the continuous base end of the upper surface of the flange, the content liquid enters the fitting portion between the flange and the lid after the sealing sheet is opened, and the continuous base end of the flange It is possible to prevent at the portion closest to the part, and it is possible to more effectively prevent leakage of the content liquid from the fitting part.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 4 show an embodiment of a cup-shaped container with a lid according to the present invention, FIG. 1 is an overall longitudinal sectional view, FIG. 2 is a plan view, FIG. 3 is a perspective view seen from obliquely above, and FIG. It is a principal part expanded longitudinal cross-sectional view of the part enclosed with the inside circle | round | yen. In FIG. 1, the content liquid is not shown, and even when the content liquid is illustrated, no special reference numerals are given.

The cup-shaped container with a lid according to the present invention is composed of three members: a container body 1, a sealing sheet 11, and a lid 21.
The container body 1 is a synthetic resin injection molded product, a thermoformed product from a synthetic resin sheet, or a synthetic resin foam molded product, etc., which is molded into a thin cup shape and has a cylindrical shape with a slightly larger diameter. An outer flange-like flange 4 is continuously provided at the upper end of the body portion 2.
Further, a concave circumferential groove 5 is provided around the base end portion of the flange 4. (See Figure 4)

  The sealing sheet 11 is composed of an aluminum laminated sheet, a synthetic resin laminated sheet, a laminated sheet of paper and synthetic resin, or the like. In addition, a thermal welding layer made of a synthetic resin material having thermal welding properties is formed between the flange 4 and the peripheral edge portion facing at least the upper surface of the flange 4 of the container body 1.

And the upper-end opening part of the container main body 1 is sealed by heat-sealing this sealing sheet 11 to the upper surface of the flange 4 in the shape of a circumference.
Here, the sealing sheet 11 is in a state of being thermally welded circumferentially to the upper surface of the flange 4 at the inner peripheral portion and the outer peripheral portion of the concave circumferential groove 5, and at the inner peripheral edge and the outer peripheral edge of the concave peripheral groove 5. That is, the concave circumferential groove 5 is covered in a bridging manner with both sides being constrained (see the bridging portion 11a in FIG. 4).

The lid 21 is a thin plastic molded product having a generally cylindrical shape made of synthetic resin as a whole, and has a short cylindrical piece-like side wall 23 that is externally fitted to the flange 4 from the outer peripheral edge of the top wall 22. A locking piece 26 is provided on the inner peripheral surface of the side wall 23 so as to climb over and lock the lower end edge of the side end surface of the flange 4.
Further, as will be described later, the top wall 22 of the lid 21 is integrally provided with an unsealing mechanism P for partially opening the sealing sheet 11 with one touch when used.

  In addition, a circumferential ridge 24 projects from a lower surface of the top wall 22 of the lid body 21 at a position facing the concave circumferential groove 5.

  When the end of the circumferential protrusion 24 comes into contact with the bridging portion 11a of the sealing sheet 11 when the lid 21 is externally fitted to the flange 4, the sealing sheet 11 is in the form of a film. The groove can be bent and deformed in a concave shape. (Refer to FIG. 4, the shape before deformation is indicated by a two-dot chain line in FIG. 4.)

  This bending deformation can sufficiently absorb the variation in the shape related to the molding accuracy of the container body 1 and the lid 21 and the deformation due to the fitting of the lid 21 to the flange 4, and a reliable and stable sealing function is exhibited. Even after the sealing sheet 11 is opened, it is possible to drink or carry the content liquid without worrying about leakage of the content liquid.

  In the manufacturing process of a product using this type of container, the container body 1 is filled with the content liquid, the sealing sheet 11 is welded to the flange 4 and sealed, and then the lid 21 is plugged into the flange 4. There are many cases in which the locking piece 26 formed on the side wall 23 gets over the side end surface of the flange 4 and is fitted to the lower edge of the lower end edge like an undercut. In this case, a large force acts. Even when is acted, it can be sufficiently absorbed by the deformation of the bridging portion 11a of the sealing sheet 11, and the sealing function by the circumferential protrusion 24 and the bridging portion 11a of the sealing sheet 11 is not impaired.

Next, the opening mechanism P disposed on the top wall 22 of the lid 21 will be described.
In order to arrange the opening mechanism P, an overcap portion 31 is formed at the center of the top wall 22. The overcap portion 31 includes a top wall 31a that faces the sealing sheet 11 at a distance, and a peripheral wall 31c that is integrally connected to the edge of the top wall 31a. The central area of the top wall 31a has a diameter from the front to the rear. A partition recess 31b that bisects the top wall 31a is provided in the direction.

In addition, an opening 32 is formed in front of the partition recess 31b.
In addition, a rectangular plate-shaped opening movable piece 33 as a whole is integrally provided in a horizontal posture in the partition recess 31b via a hinge portion 35 attached to the front end of the partition recess 31b.
The opening movable piece 33 includes a blade portion 33a and an operation piece 33b connected to the rear portion of the blade portion 33a, and can be rotated with the hinge portion 35 as a fulcrum.
In addition, a rectangular window hole 34 is formed in the blade portion 33a and, together with the opening portion 32, functions as an outlet for the content liquid or a drinking mouth.

In order to open the container, it is caused by placing a finger on the rear end of the operation piece 33b of the opening movable piece 33. Then, the blade portion 33 a is swung down with the hinge portion 35 as a fulcrum as shown in FIG. 5, and pushes down the sealing sheet 11 just below the opening portion 32.
After opening the container by pressing the sealing sheet 11, the opening movable piece 33 is returned to the initial position (horizontal position) as shown in FIG. You can drink the contents liquid.

  As mentioned above, although embodiment of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.

  As described above, the cup-shaped container with a lid according to the present invention can reliably and stably maintain a sealing property by a lid body that is externally fitted to the flange even after the sealing sheet is opened. A wide range of usage development in the field can be expected

1 is an overall longitudinal sectional view of an embodiment of a cup-shaped container with a lid according to the present invention. It is a top view of the container of FIG. It is a perspective view from diagonally upward of the container of FIG. FIG. 2 is an enlarged vertical cross-sectional view of a main part of a portion surrounded by a circle in FIG. 1. It is explanatory drawing of the opening procedure in the container of FIG. It is explanatory drawing which shows the extraction | pouring condition of the content liquid in the container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Container main body 2; Body part 3; Bottom part 4; Flange 5; Concave groove 11; Sealing sheet 11a; Bridging part 21; Lid 22; Top wall 23; Side wall 24; Overcap portion 31a; top wall 31b; partition recess 31c; peripheral wall 32; opening 33; opening movable piece 33a; blade portion 33b; operation piece 34;

Claims (2)

A cup-shaped synthetic resin container body (1) in which a flange (4) is connected to a flange (4) in an outer casing shape at the opening at the upper end of the trunk (2), and the container body (15) thermally welded to the upper surface of the flange (4) A sealing sheet (11) for sealing the opening of 1), and a top-like cylindrical lid (21) that covers the sealing sheet (11) with an outer fitting assembly on the flange (4),
Said flange (4) of the upper surface to form a concave peripheral groove (5) in communication設基end of the flange (4),
A circumferential ridge (24) is suspended at a position facing the concave circumferential groove (5) on the lower surface of the top wall (22) of the lid (21),
The sealing sheet (11) thermally welded to the upper surface of the flange (4) covers the concave circumferential groove (5) in a bridging manner to form a bridging portion (11a),
In the state where the lid (21) is externally fitted to the flange (4) of the container body (1), the tip of the circumferential ridge (24) is a bridging portion (11a) of the sealing sheet (11). A cup-shaped container with a lid that is configured to be in contact with the bridging portion (11a) so as to be able to bend and deform.
A food / beverage product package formed by filling and sealing a food / beverage product in the synthetic resin container body (1) in the cup-shaped container with a lid according to claim 1 .

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