Packaging containers

Abstract

To provide a packaging container which allows the opening history of its lid to be easily known with an extremely simple structure, thereby being able to achieve a role such as falsification prevention.SOLUTION: A packaging container 100 comprises: a container body 50 having a container flange 53 outside a reception part 52; and a lid 10 having a lid flange 14. In a state where the lid flange 14 is fitted to the container flange 53, a content is received in a reception space 56 below the lid 10. The lid flange 14 has a lid engagement part 16 located on an outer side thereof. The container flange 53 comprises: a standing wall 60; a container engagement part 58 extending from the standing wall 60 and engaging with the lid engagement part 16; and a connection part 62 for connecting the reception part 52 and the standing wall 60 to each other. A rupture portion 64 for facilitating rupture between the reception part 52 and the container engagement part 58 is disposed in the connection part 62. The rupture portion 64 is disposed on a position along the standing wall 60.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a packaging container that can accommodate foods such as bento and fruits, and other contents by covering a lid on a container body.

Background Art

[0002] Conventionally, this type of packaging container includes a container body having a container flange on the outer periphery of the accommodating portion, and a lid having a lid flange on the outer periphery of the top surface portion. By fitting the lid flange with the container flange, foods such as side dishes and sushi, and other contents can be accommodated in the storage space between the accommodating portion and the top surface portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Examples of the packaging container include the packaging container described in Patent Document 1. In the case of this packaging container, the container is sealed by fitting a lid to the container body. Also, for example, in the case of mischief, if the lid is inadvertently opened, it is required to leave a trace of the opening and be easily discovered visually. However, in the case of the packaging container described in Patent Document 1, it is necessary to form fine structures, and when forming the packaging container, there are problems that it takes complicated labor and the cost also increases. Further, since the cleavage portion is not arranged at a position along the rising wall, there is a problem that the cleavage portion is cleaved by an external impact during transportation, display, etc., and the lid is inadvertently opened. This invention was made to solve the above-mentioned problems, and its objective is to provide an inexpensive and excellent packaging container that has an extremely simple structure and plays a role in deterring and preventing tampering and alteration. Furthermore, the present invention provides a packaging container that prevents deformation by its vertical walls even when subjected to external impact during transportation or display, thus preventing the opening from tearing and making it difficult for the lid to come off unintentionally, thus preventing it from appearing tampered with. [Means for solving the problem]

[0005] To solve the above problems, the present invention has the following means. That is, as means 1, a packaging container in which a container body having a container flange on the outside of the storage portion is covered with a lid having a lid flange on the outside of the top surface portion, thereby fitting the lid flange and the container flange together, and storing contents in the storage portion, wherein the lid flange is provided with a lid engaging portion located on the outside, and further, the container flange is provided with a vertical wall portion, a container engaging portion located on the storage portion side of the vertical wall portion and engaging with the lid engaging portion, a connecting portion connecting the storage portion and the container engaging portion to each other, and the connecting portion is provided with a splitting portion that facilitates splitting between the storage portion and the container engaging portion, and the splitting portion is positioned along the vertical wall portion.

[0006] As a second means, in means 1, it is desirable that the split portion be provided in a part of the circumferential direction of the connecting portion, and that the vertical wall portion be provided with bent portions near both ends of the split portion to facilitate the splitting of the split portion.

[0007] As a third means, in means 1 or means 2, it is preferable that the split portion protrudes toward the container flange side.

[0008] As a fourth means, in means 1 or means 2, it is preferable that the vertical wall portion is arranged along the entire outer circumference of the container flange. [Effects of the Invention]

[0009] According to the present invention, a splitting portion is provided at the connecting portion that connects the container's storage portion and the container engagement portion, facilitating the splitting between the storage portion and the container engagement portion. This splitting portion is positioned along the vertical wall, employing an extremely simple structure that allows for easy confirmation of the splitting status and easy determination of the lid's opening status (whether or not it has already been opened). If the lid is opened unintentionally, the person in charge of the packaging container can remove the opened packaging container or take appropriate action against the person who opened it unintentionally. As a result, those who intend to tamper with or tamper with the container may hesitate or give up, thus fulfilling the functions of deterring and preventing tampering. Therefore, it is possible to provide an inexpensive and excellent packaging container that can fulfill the role of deterring tampering with an extremely simple structure. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing an embodiment of the packaging container of the present invention, in which the lid is separated from the container body. [Figure 2] Figure 1 is a plan view showing the lid placed over the container body. [Figure 3] Figure 2 is an enlarged cross-sectional view of the main part showing the engagement between the lid and the container body. [Figure 4] This is a magnified view of a part of the container body, showing the container with the lid removed as in Figure 1. [Figure 5] Figure 4 is an enlarged view showing a portion of the container body (outer edge) that has been cut away from the main body of the container. [Figure 6] Figure 2 is an enlarged view showing a portion of the container body (outer edge) that has been cut away from the main body of the container. [Explanation of Symbols]

[0011] 10 Lid body 12 Top section 12A Corner section 14 Lid flange 16 Lid engagement part 19 Outer edge part 50 Container body 52 Storage section 53 Container flange 53A Curved section 53B Straight section 58 Container engagement portion 60 Vertical wall portion 62 Connecting portion 64 Split portion 68 Folding section 70 Press-down position 100 Packaging container [Modes for carrying out the invention]

[0012] Next, embodiments of the packaging container of the present invention will be described with reference to the drawings. Figure 1 shows the lid 10 separated from the container body 50, and Figure 2 shows the lid 10 placed over the container body 50. The packaging container 100 of this embodiment comprises a lid 10 and a container body 50. The lid 10 and the container body 50 are made of synthetic resin, and each of the lid 10 and the container body 50 can be integrally molded into complex shapes. The lid 10 has a transparent top surface 12 located at the top center, a peripheral side wall 13 extending from the outer circumference (outside) of the top surface 12, and a lid flange 14 provided on the outside of the peripheral side wall 13. As shown in Figures 1 and 2, the top surface 12 occupies a large area of ​​the lid 10. The top surface 12 has rounded corners 12A (in this case, the four corners), is square in shape in plan view, and has vertical sides 12B and horizontal sides 12C. The container body 50 comprises a storage section 52 and a container flange 53 located on the outer circumference (outside) of the storage section 52. In this embodiment, the storage section 52 is provided with a peripheral side wall 54 rising from the bottom surface to secure the spatial volume of the storage space 56, and the container flange 53 is provided on the outer circumference (outside) of this peripheral side wall 54. The storage section 52 can store food such as fruits and bento boxes and other contents (not shown).

[0013] The lid flange 14 is provided with a lid engaging portion 16, while the container flange 53 is provided with a container engaging portion 58 (described later). The lid engaging portion 16 engages with the container engaging portion 58, so that when the lid 10 is placed over the container body 50, the container body 50 is sealed by the lid 10. Figure 3 shows the state in which the lid 10 is placed over the container body 50 and the lid flange 14 is engaged with the container flange 53. As a specific structure of the lid flange 14, as shown in FIG. 3, it includes a large-area flat portion 16A that extends substantially horizontally outward from the steeply descending peripheral side wall portion 13, a liquid-blocking recess 17 provided in this flat portion 16A, a wall portion 18 that rises steeply outward from this recess 17, and an outer edge portion 19 that extends outward from this wall portion 18. This outer edge portion 19 functions to engage with a convex portion 60B (described later) of the container engaging portion 58 and constitutes the lid engaging portion 16. Note that, as a structure in which the outer edge portion 19 and the convex portion 60B engage with each other, configurations other than those shown in the figure, such as changing the forms of the outer edge portion 19 and the convex portion 60B, may be adopted. Also, the engaging structure of the lid flange 14 and the lid engaging portion 16 may adopt a configuration other than that shown in the figure.

[0014] As shown in FIGS. 1 and 2, the container flange 53 is located outside the accommodating portion 52 of the container body 50, and the outer periphery of the container flange 53 includes curved portions 53A located at the four corners of the accommodating portion 52 and straight portions 53B that extend in both directions from these curved portions 53A. Furthermore, as shown in FIG. 3, the container flange 53 is provided with a connecting portion 62 that mutually connects the accommodating portion 52 and the container engaging portion 58. In this case, the standing wall portion 60 located at the outer end of the connecting portion 62 includes a wall portion 60A that rises obliquely upward, a convex portion 60B that protrudes from this wall portion 60A toward the accommodating portion 52 side, a flat portion 60C that has a gently rising slope surface in part (on the accommodating portion 52 side) from this convex portion 60B, a wall portion 60D that extends steeply downward from this flat portion 60C, and an outer edge portion 60E that extends outward from this wall portion 60D, etc. Since the standing wall portion 60 is composed of the wall portion 60A, the convex portion 60B, the flat portion 60C, the wall portion 60D, etc., and has a structure in which the standing wall portion 60 can absorb external forces, if an impact is applied from the outside of the packaging container 100, the standing wall portion 60 can absorb the impact force. The structure of the standing wall portion 60 may adopt a configuration other than that shown in the figure. Note that the flat portion 60C is connected to the wall portion 60A via the convex portion 60B and is located at a position higher than the convex portion 60B. Therefore, when the lid engaging portion 16 engages with the container engaging portion 58 from above, the outer edge portion 19 is locked by the convex portion 60B in a state where the outer edge portion 19 abuts against the lower end side of the convex portion 60B. When the outer edge portion 19 is lifted from the lower end side of the convex portion 60B from such an abutting state, the outer edge portion 19 moves above the convex portion 60B and changes from the abutting state to a separated state, enabling the fitting between the lid flange 14 and the container flange 53 to be unsealed.

[0015] When the outer edge portion 19 strongly engages with the lower end side of the convex portion 60B, there is an effect of enhancing the fitting strength between the lid flange 14 and the container flange 53. Also, when the outer edge portion 19 and the lower end side of the convex portion 60B are in contact, it becomes difficult for a consumer's finger to enter between the outer edge portion 19 and the lower end side of the convex portion 60B (the adhesion becomes high), and there is an effect of enhancing functions such as mischief prevention and prevention. Furthermore, when the standing wall portion 60 is disposed along the entire outer circumference of the container flange 53, the entire circumference of the outer edge portion 19 and the entire circumference of the wall portion 60A engage with each other, eliminating the exposure of the outer edge portion 19 and making it difficult for a consumer's finger to enter the inside of the standing wall portion 60 (that is, between the outside of the outer edge portion 19 and the wall portion 60A), so there is an effect such as mischief prevention and prevention. Also, since the standing wall portion 60 is connected at the entire outer circumference, the standing wall portion itself has rigidity, so even when an external impact is applied during transportation, display, etc., the cleavage portion 64 inside the standing wall portion 60 does not cleave, and there is an effect that the lid does not accidentally come off. Also, the connecting portion 62 connects between the accommodating portion 52 and the container engaging portion 58. On the other hand, a cleavage portion 64 that facilitates cleavage between the accommodating portion 52 and the container engaging portion 58 is provided in this connecting portion 62. Specifically, the split section 64 is a configuration in which a cut section, such as a perforation, and an uncut section are arranged in a line. Other configurations of the split section include, for example, a configuration in which a thin section (thin section) is provided by laser processing. When the split section 64 consists of a perforation, etc., the split section 64 becomes easier to split when force is applied to it. When the split section 64 splits, the shape of the connecting section 62 changes, so consumers can easily visually confirm the split state of the split section 64. The connecting section 62 and the split section 64 may have configurations other than those shown, and any configuration that allows the split state to be easily recognized may be adopted.

[0016] Figure 4 shows the area around one corner of the container body 50 with the lid 10 removed from it. Figures 5 and 6 show the state in which the split section 64 has split open and a part of the container body 50 has split away from it. The split portion 64 extends between ends 64A and 64C shown in Figure 4, and is positioned along the vertical wall portion 60 (container engagement portion 58) between fulcrums 64D and 64E (curved portion 64H) passing through the central position 64B, and is projecting toward the container flange 53 side. Because the tip of the split portion 64 is projecting in this way, when the vertical wall portion 60 near the split portion 64 is pushed down, force tends to concentrate near the split portion 64, making splitting even easier. Furthermore, since the split portion 64 is located near the center 62C of both ends 62A and 62B (see Figure 3) of the connecting portion 62, and close to the vertical wall portion 60 (i.e., the split portion 64 is inside the vertical wall portion 60), forces from the outside of the container body 50 are absorbed by the vertical wall portion 60, etc., and are less likely to affect the split portion 64 (strong against external impacts). This prevents the split portion 64 from unintentionally splitting, and as a result, prevents the lid 10 from opening unintentionally. Furthermore, a portion of the split section 64 (see Figure 4) is arranged parallel to the vertical side section 54B and the horizontal side section 54C of the surrounding side wall section 54. The split section 64 comprises a straight section 64F (between the end 64A and the support point 64D) running parallel to the vertical side section 54B, a straight section 64G (between the end 64C and the support point 64E) running parallel to the horizontal side section 54C, and a curved section 64H (between the support points 64D and 64E, passing through the center position 64B) connecting the two straight sections 64F and 64G. The length of the portion of the split section 64 along the vertical side 54B of the curved section 64H and the straight section 64F (the length between the end 64A and the center position 64B) is approximately equal to the length of the portion of the split section 64 along the horizontal side 54C of the curved section 64H and the straight section 64G (the length between the end 64C and the center position 64B), and this length is approximately 40 to 60 mm. As described above, the reason for making the length of the split portion 64 equal is that when force is applied to the connecting portion 62 or the split portion 64, the storage portion 52 and the container engagement portion 58 split at the split portion 64 and the connecting portion 62 descends, the area near the center position 64B descends the most, and the amount of descent near the split portion 64 along the vertical side portion 54B and the amount of descent of the split portion 64 near the horizontal side portion 54C are made to be approximately the same (that is, the shape of the split portion 64 when it descends along the vertical side portion 54B and the shape of the split portion 64 when it descends near the horizontal side portion 54C are similar), thereby eliminating differences between the two shapes and making it easier to split. In this way, when the split portion 64 splits, as previously described, the amount of descent of the connecting portion 62 accompanying the descent of the split portion 64 is equal in both directions, making it easier to split and resulting in a better appearance compared to the case where the amount of descent is uneven.

[0017] In this case, when a consumer or the like presses down on the flat portion 60C that straddles the two folded portions 68 described later, and the surrounding connection portion 62 and the area near the split portion 64 (hereinafter referred to as the "pressed-down position 70"), force is applied from above to the connection portion 62 and the split portion 64, causing the storage portion 52 and the container engagement portion 58 to split, and the split connection portion 62 (on the container engagement portion 58 side) to descend. By visually observing this descent, it becomes easier to grasp the split state between the storage portion 52 and the container engagement portion 58. Furthermore, the flat portion 60C of the vertical wall portion 60 is almost parallel to the bottom surface of the housing portion 52, and near both ends (64A, 64C) of the split portion 64 in this flat portion 60C, there are bends 68 that facilitate the splitting of the split portion 64. In this case, when the pressed-down position 70 is pressed down with a fingertip, the position (height) of the lid flange 14 is maintained, and a downward force is applied to the bends 68 at the pressed-down position 70, causing the bends 68 to deform and bend, and the force applied to the connecting portion 62 and the split portion 64 increases. When force is applied to the connecting portion 62 and the split portion 64, the split portion 64 splits along the vertical wall portion 60, and the connecting portion 62 near the split portion 64 and the vertical wall portion 60 descends further. As the crack in the crack 64 widens, as shown in Figure 6, the vertical wall portion 60 located outside the crack 64 moves down to a position lower than the outer edge portion 19, exposing the outer edge portion 19 so that it can be grasped with fingers. As a result, the lid 10 can be easily removed, and a trace of the crack remains in the crack 64. Therefore, by checking this trace, administrators can easily determine whether or not the lid 10 has already been opened. Furthermore, if the bent portion 68 is provided on the flat portion 60C, the tearing portion 64 becomes easier to tear, the tearing of the tearing portion 64 becomes more noticeable, and the state of the tearing of the tearing portion 64 becomes easier to recognize. However, the bent portion 68 may be placed in a position other than those mentioned above, and the size, shape, etc. of the bent portion 68 may be changed as appropriate. In addition, a press indicator portion may be provided near the press-down position 70 to indicate that it should be pressed down, and if necessary, a handle portion (not shown) may be provided on the outside of the container 100 to facilitate operation. In this embodiment, unlike the conventional technology, there is no gripping part and a press-indicating part, which has the effect of simplifying the manufacturing of the container body 50.

[0018] Furthermore, since the vertical wall portion 60 of the container flange 53 is arranged along the entire outer circumference, the rigidity of the vertical wall portion 60 is increased, maintaining overall strength, and also reducing the force directed from the outside towards the inside of the vertical wall portion 60. As a result, the lid 10 and the container body 50 have the characteristic of being strong against impact forces from the outside. As described above, the packaging container 100 of this embodiment comprises a container body 50 having a container flange 53 on the outside of a storage section 52, and a lid 10 having a lid flange 14. When the lid flange 14 is fitted onto the container flange 53, the contents are stored in the storage space 56 below the lid 10. The lid flange 14 has a lid engagement portion 16 located on the outside, and the container flange 53 has a vertical wall portion 60, a container engagement portion 58 located on the storage section side of the vertical wall portion 60 and engaging with the lid engagement portion 16, and a connecting portion 62 that connects the storage section 52 and the container engagement portion 58 to each other. The connecting portion 62 is provided with a splitting portion 64 that facilitates splitting between the storage section 52 and the container engagement portion 58, and the splitting portion 64 is positioned along the vertical wall portion 60. With this structure, consumers and managers can easily grasp whether the lid 10 has already been opened or not, that is, the current status of the lid's opening. As a result, if the lid 10 has already been opened unintentionally, the administrator can remove the opened packaging container 100 or take appropriate action against the person who opened it unintentionally.

[0019] Therefore, those who attempt to vandalize or tamper with the product will hesitate or give up on their attempt, thus fulfilling functions such as deterring vandalism, preventing vandalism, and deterring tampering. As a result, the packaging container 100 of this embodiment can perform the role of deterring vandalism and other such functions with an extremely simple structure. In another embodiment, the length of the split portion 64 can be shortened by devising a way to facilitate the splitting between the storage portion 52 and the container engagement portion 58. Furthermore, the square shape of the lid 10 and the container body 50 in plan view may be changed to a circular, elliptical, rectangular, or other shape.

Claims

1. A container body having a container flange on the outside of the storage section, and a lid flange on the outside of the top surface. By placing the lid on top, the lid flange and the container flange are fitted together, and in the housing section In a packaging container for containing contents, The aforementioned lid flange is provided with a lid engaging portion located on the outside, and further, The aforementioned container flange is The vertical wall section, A container engaging portion is located on the housing side of this vertical wall portion and engages with the lid engaging portion, A connecting portion that connects the aforementioned storage portion and the aforementioned container engagement portion to each other, The connecting portion is provided with a splitting portion to facilitate the splitting between the housing portion and the container engaging portion, This cleavage is positioned along the aforementioned vertical wall, The aforementioned split portion is provided in a part of the circumferential direction of the connecting portion, and the vertical wall portion is attached to both ends of the split portion. Nearby, each of the aforementioned splitting portions is provided with a bendable portion to facilitate the splitting. A packaging container characterized by the following features.

2. The aforementioned split portion is characterized by being a projection toward the outside of the container flange. The packaging container described in item 1.

3. The vertical wall portion is characterized by being arranged along the entire outer circumference of the container flange. A packaging container as described in item 1 or 2.

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