JP3203751U - Tamper-proof container - Google Patents

Abstract

[PROBLEMS] To eliminate the need for additional materials and improve the accuracy of the attachment of both the container body and the lid by the structure of the container itself, enabling simple opening, and the presence or absence of unauthorized opening is easy. The present invention provides a tamper-proof container that can be discriminated. A tamper-proof container is formed by joining a first flange portion (20) of a first container (10) and a second flange portion (60) of a second container (50). A covering peripheral wall portion 63 that covers the flange end portion of the first flange portion and is orthogonal to the flange main body portion of the second flange portion 60 and extends toward the first container 10, and a first flange portion formed at the end portion of the covering peripheral wall portion 63 20 and a folded end portion 65 folded back to the second container side 50 so as to be engageable with the back surface portion, and a linear shape formed on all or part of the circumferential wall direction of the covering circumferential wall portion 63 of the second flange portion. The easy-breaking part 70 is provided, and the opening part which destroys continuously from a part of the coating surrounding wall part 63 to the easily-breakable part 70 is provided. [Selection] Figure 2

Description

  The present invention relates to a tamper-proof container, and more particularly to a tamper-proof container that can be easily opened and can be easily discriminated whether or not the container has been opened.

  For example, many containers for food packaging such as sugar beet, lunch boxes and confectionery are composed of a container body and a lid. After the contents are packed in the container, the container body is covered with a lid. In a container having a simple structure, the container main body and the lid are merely superimposed, and both are easily separated. Therefore, at the time of display and sale, if the lid is easily opened and opened, there is a concern that foreign matter may enter the container. Sellers pay close attention to items for sale because the sale of inappropriate items extends to sellers' credit problems.

  Conventionally, when a container is sealed, the container body is covered with a lid, and then a plurality of locations are pasted and sealed using a tape or a seal. However, since a portion having a small amount of adhesion between the container main body and the lid body is generated, the sealing effect is not sufficient to prevent contamination by foreign matters.

  For this reason, wrap film coverage is increasing to cover the entire container and prevent the lid from opening. According to the covering using the wrap film, the sealing effect is enhanced, it is resistant to impacts, is easy to handle, and the convenience of display work is enhanced. For this reason, it is widely used for lunch boxes sold at convenience stores.

  However, when a tape, a seal, or a wrap film is used, material costs other than the container are generated. In addition, work for attaching a tape or a seal or wrapping with a wrap film is inevitably separately generated. In addition, since the container sealing operation itself takes time, productivity related to sales such as product filling and display is not always good. For this reason, simplification of materials and improvement of work efficiency have been demanded.

  In view of this, there has been proposed a container whose sealing accuracy is enhanced only by the container main body and the lid (see Patent Document 1, etc.). According to the container of Patent Document 1, when the lid body is overlapped and bonded to the container body, the edge portion of the lid body hangs longer than the edge portion of the container body. And the side wall part of a container main body is covered with the edge part which the cover body hung down. According to the container, since the lid body covers the container body side deeply after the container body and the lid body are joined, a protective wall of the lid body is generated just around the container body. For this reason, it is difficult to insert a finger or the like and it is difficult to open carelessly, and the effect is increased against deterring foreign matter.

JP 2012-101828 A

  However, since the lid body only hangs down on the container body side, it is not impossible to remove the lid body once attached to the container body. Therefore, there has been a problem that it is difficult to confirm later whether or not the lid has been opened for illegal purposes.

  Because of this, no special materials are required, the accuracy of the attachment between the lid and the container body is excellent, and when the lid is removed from the container body, the trace becomes clear and fraudulent Therefore, a container having a structure for preventing falsification has been demanded. Further, there is a demand for a structure that can be easily opened in a container having such a tamper-proof structure without impairing the tamper-proof effect.

  The present invention has been made in view of the above points, and does not require a separate material. The structure of the container itself improves the joining accuracy of both the container main body and the lid and realizes good sealing. It is an object of the present invention to provide a tamper-proof container that enables simple opening and that can easily determine the presence or absence of unauthorized opening once.

  That is, the invention of claim 1 includes a first container having a first flange portion extending outward of the container main body around the entire opening, and extending outward of the container main body around the entire opening. A second container made of a sheet-like molded body mainly composed of a synthetic resin and provided with a second flange, and the second flange is bonded to the first flange. The second container is configured by combining one container with the second container, and the second flange portion covers a flange end portion of the first flange portion and is orthogonal to the flange main body portion of the second flange portion. And a folded end portion that is formed at an end portion of the coated peripheral wall portion and is folded back toward the second container so as to be engageable with the back surface portion of the first flange portion. All of the peripheral wall direction of the covering peripheral wall portion of the flange portion Alternatively, a linear easily breakable portion formed in a part is provided, and an opening portion that continuously breaks from a part of the covering peripheral wall portion to the easily breakable portion is provided. It relates to a tamper-proof container.

  The invention according to claim 2 relates to the tamper-proof container according to claim 1, wherein the easily breakable portion is formed by a thin portion or an intermittent hole portion.

  The invention of claim 3 is a combination of straight portions including the inclined portion formed by the thin portion or the intermittent hole portion and including the inclined portion inclined from the end side of the covering peripheral wall portion to the extending direction side of the easily breakable portion. The tamper-proof container according to claim 1 or 2.

  The invention of claim 4 is characterized in that the unsealing part is an arcuate part formed by a thin part or an intermittent hole part and curved from the end part side of the covering peripheral wall part to the extending direction side of the easily breakable part. 2. The tamper-proof container described in 2.

  The invention of claim 5 relates to the tamper-proof container according to any one of claims 1 to 4, wherein a display part is attached to the opening part.

  The invention of claim 6 relates to the tamper-proof container according to claim 5, wherein the display unit is a colored display unit or an arrow display unit.

  The invention according to claim 7 relates to the falsification preventing container according to any one of claims 1 to 6, wherein a knurled groove is formed at the folded end.

  The invention of claim 8 relates to the tamper-proof container according to any one of claims 1 to 7, wherein each of the openings of the first container and the second container is circular in plan view.

  According to the falsification-preventing container according to the first aspect of the present invention, the first container including the first flange portion extending outward from the container main body around the entire opening, and the container main body around the entire opening. And a second container made of a sheet-like molded body mainly composed of synthetic resin and provided with a second flange portion extending outward, and the second flange portion is bonded to the first flange portion. Accordingly, the first container is combined with the second container, and the second flange portion covers a flange end portion of the first flange portion and is orthogonal to the flange main body portion of the second flange portion. A covering peripheral wall portion extending toward the first container side; and a folded end portion formed at an end portion of the covering peripheral wall portion and folded back toward the second container side so as to be engageable with a back surface portion of the first flange portion. The covering peripheral wall portion of the second flange portion A straight easy-to-break portion formed in all or part of the peripheral wall direction is provided, and an opening portion that continuously breaks from a portion of the covering peripheral wall portion to the easily-breakable portion is provided. Therefore, no additional materials are required, and the structure of the container itself enhances the joining accuracy of both containers to achieve good sealing and allows easy opening, and once unauthorized opening has been performed In addition, it is possible to realize a structure of a tamper-proof container that can easily determine the presence or absence thereof.

  According to the falsification-preventing container according to the invention of claim 2, in the invention of claim 1, since the easily breakable part is formed by a thin part or an intermittent hole part, the structural strength is intentionally weakened. By operation, the second flange portion can be broken through the easily breakable portion.

  According to the falsification preventing container according to the invention of claim 3, in the invention of claim 1 or 2, the opening part is formed by a thin part or an intermittent hole part, and the easily breakable part is formed from the end side of the covering peripheral wall part. Since it is a combination of straight portions including an inclined portion inclined toward the extension direction, the end portion of the covering peripheral wall portion can be easily broken and the breakage can be appropriately induced to the easily breakable portion.

  According to the falsification preventing container according to the invention of claim 4, in the invention of claim 1 or 2, the opening part is formed by a thin part or an intermittent hole part, and the easily breakable part is formed from the end side of the covering peripheral wall part. Since the arcuate portion is curved toward the extending direction, the end portion of the covering peripheral wall portion can be easily broken, and the breakage can be appropriately induced to the easily breakable portion.

  According to the falsification preventing container according to the invention of claim 5, in the invention of any one of claims 1 to 4, since the display part is attached to the unsealed part, the part that becomes the starting point of destruction is conspicuous, and the user's It becomes easy to be recognized through vision.

  According to the falsification-preventing container according to the invention of claim 6, in the invention of claim 5, since the display part is a colored display part or an arrow display part, it can be easily formed on the corresponding part, and an unsealed part is used. Can make it easier for the person to recognize.

  According to the falsification preventing container according to the invention of claim 7, in the invention of any one of claims 1 to 6, since the knurled groove portion is formed in the folded end portion, the distortion generated in the folded end portion itself is reduced, The deformation of the covering peripheral wall portion and the folded end portion is suppressed.

  According to the falsification-preventing container according to the invention of claim 8, in the invention of any one of claims 1 to 7, since the respective openings of the first container and the second container are both circular in plan view, The load applied to any part of the body is averaged and deformation resistance is increased.

1 is a separated perspective view of a tamper-proof container according to a first embodiment of the present invention. It is whole sectional drawing before the combination of the tamper-proof container of 1st Embodiment. It is a whole sectional view at the time of attachment of a tamper-proof container of a 1st embodiment. It is a partial expanded sectional view of the flange part vicinity at the time of attachment. It is a side view of a 2nd container. It is a principal part expanded sectional view of a 2nd flange part. It is a partial end elevation before combination of containers. It is a partial end elevation in the combination of the containers. It is a fragmentary end view at the time of completion of combination of containers. It is a partial end elevation of a state where the containers are pulled apart. It is a whole perspective view before the combination of the tamper-proof container of 2nd Embodiment. It is a whole sectional view of a tamper-proof container of a 3rd embodiment.

  A tamper-proof container 1 defined in the present invention and a tamper-proof structure Sr provided in the tamper-proof container 1 according to the present invention will be described with reference to the entire perspective view of FIG. Anti-tamper container 1 is called Tamper Resistant Package, etc., mainly for lunch boxes, side dishes, desserts, etc. sold at convenience stores, supermarkets, department stores, etc. It is a container.

  The tamper-proof container 1 of the first embodiment is configured by a combination of a first container 10 and a second container 50. In the tamper-proof container 1 of this example, the first container 10 is the container body C, the second container 50 is the lid T, and the second container 50 is in a vertical relationship in which the second container 50 is placed on the first container 10. 50 is a form of external fitting. Foods, articles and the like are packed on the first container 10 side, and then the second container 50 is put on the first container 10. As a feature of the present invention, a tamper-proof structure Sr is provided on the second container 50 side. The tamper-proof structure Sr enables sufficient bonding between the first container 10 and the second container 50, and makes it easier to find an opening trace after the seal is once released. Details of the tamper-proof structure, including the remaining symbols in FIG. 1, will be described later.

  FIG. 2 is a longitudinal sectional view of the tamper-proof container 1 before combination. As can be seen from the drawing, the first container 10 is provided with a first flange portion 20 that extends outward from the container body 13 of the container around the entire periphery 12 of the opening 11. The second container 50 is also provided with a second flange portion 60 that extends outward from the container body 53 of the container around the entire periphery 52 of the opening 51. The flat plate portion 14 of the first container 10 is a bottom portion of the container main body C. The flat plate portion 54 of the second container 50 is a top plate in the lid T.

  According to the example illustrated in FIGS. 1 and 2, the openings 11 and 51 of the first container 10 and the second container 50 are both circular in plan view. By adopting a circular shape, the load applied to any part around the container is averaged, and deformation resistance is increased. In addition, the second flange portion 60 is provided with an easily breakable portion 70 and an opening portion 80. The easily breakable portion 70 is linearly provided on a part of the second flange portion 60.

  FIG. 3 is an overall vertical cross-sectional view when the anti-tamper container 1 is attached, and shows a state in which the second container 50 of the lid T is overlaid on the first container 10 of the container main body C. The second flange portion 60 of the second container 50 is joined to the first flange portion 20 of the first container 10. The tamper-proof container 1 is configured by a combination of both. Since the flange portions are in surface contact, the inside of the container 1 is well sealed. The tamper-proof structure Sr provided around the second flange portion 60 is a folded structure including a covering peripheral wall portion 63 and a folded end portion 65 connected thereto.

  Further, the second container including the tamper-proof structure Sr is formed of a sheet-like molded body mainly composed of synthetic resin. By using a synthetic resin sheet, the second container having the tamper-proof structure Sr is inexpensively and accurately manufactured. Specifically, it is a sheet of a thermoplastic resin such as polyethylene, polypropylene, polystyrene, or polyethylene terephthalate (synthetic resin sheet), or a sheet of a biodegradable thermoplastic resin such as polylactic acid. Although the thickness of the synthetic resin sheet is appropriate, it is approximately 1 mm or less. And the said synthetic resin sheet | seat is shape | molded in the shape including illustration by vacuum forming. In the case of a mortar-shaped container having a flat plate portion serving as an opening and a top plate, vacuum molding is simple and optimal in consideration of mass productivity at the time of molding when using a synthetic resin sheet as a raw material, processing accuracy, and the like.

  On the other hand, as long as the 1st flange part 20 can be formed, the material of the 1st container 10 in the tamper-proof container 1 is not specifically limited. For example, it may be made of metal, glass or wood. Alternatively, a resin molded product or the like may be used. That is, the first container can be a container that is used many times, and only the second container combined therewith can be made disposable as a product made of the above-mentioned synthetic resin sheet. Even in this case, since the function of the tamper-proof structure itself is the same, the desired object of the present invention can be achieved.

  Of course, together with the second container, the first container can be formed by vacuum forming as a sheet-like formed body mainly composed of the above-mentioned synthetic resin. If it carries out like this, a 1st container can also be shape | molded simply and the said tamper-proof container itself can be manufactured cheaply. Moreover, all can be made disposable (disposable). In the combination of the first container and the second container, the raw resin of the synthetic resin sheet may be the same or different. The type of resin is appropriately selected depending on the application, contents, and packaging target.

  FIG. 4 is a cross-sectional view of the main part of the tamper-proof container 1. The structure in the vicinity of the falsification preventing structure Sr will be described with reference to FIG. According to the illustrated first container 10, the bent edge portion 22 is formed at the flange end portion 21 of the first flange portion 20. By providing the bent edge 22, the vicinity of the opening 11 of the first container 10 is hardly deformed. It is possible to reduce the problem of coalescence due to the combination with the second container 50.

  The second flange portion 60 of the second container 50 includes a flange main body portion 62 and a covering peripheral wall portion 63 that is orthogonal to the flange main body portion 62 and extends toward the first container 10 side. The illustrated coating peripheral wall 63 is depending on the first container 10 side. When the first container 10 and the second container 50 are joined, the flange end portion 21 of the first flange portion 20 of the first container 10 is covered with the bent structure of the flange main body portion 62 and the covering peripheral wall portion 63. Further, the covering peripheral wall 63 covers the bent edge 22 provided at the flange end 21 from the side.

  An end portion 64 that is an extended end of the covering peripheral wall portion 63 is provided with a folded end portion 65 that is turned back toward the second container 50 in the direction opposite to the extending direction of the covering peripheral wall portion 63. In the illustrated example, the folded end portion 65 is connected in a substantially V shape (inclined V shape) when viewed in cross section. Therefore, the tip end portion of the folded end portion 65 is appropriately separated from the covering peripheral wall portion 63. This makes it easier to fit the containers together.

  The engagement surface 69 of the second flange portion 60 contacts the engagement surface 29 of the first flange portion 20. The folded end portion 65 is engaged on the back surface 23 side of the first flange portion 20. As described above, according to the tamper-proof structure Sr, the second flange portion 60 (the covering peripheral wall portion 63 and the folded end portion 65) of the second container 50 covers the first flange portion 20 of the first container 10 so as to be wound around. Therefore, although the shapes are extremely simple, the containers cannot be easily detached after the containers are once fitted. Further, if the first container 10 and the second container 50 are forcibly separated, the structures of the covering peripheral wall 63 and the folded end 65 of the second flange 60 will be destroyed. Therefore, the tampering structure Sr can be easily grasped from the trace of the destruction.

  Further, as shown in FIG. 2, a knurled groove 66 is formed at the folded end 65. This knurled groove portion is also referred to as knurling, and is engraved as a row of fine grooves in the same vertical direction as the extending direction of the covering peripheral wall portion 63. In the drawing, a part of the groove is also extended to the covering peripheral wall portion 63. In forming the knurled groove 66, a known engraving tool is used.

  As can be understood from the folded structure of the covering peripheral wall portion 63 and the folded end portion 65 in the second flange portion 60 shown in FIG. 4 and the like, when the folded end portion 65 is folded inward, a difference in diameter occurs. That is, the folded end portion 65 side is contracted as compared with the covering peripheral wall portion 63. If the flat plate shape is not provided with the knurled groove portion due to the shrinkage, irregular wrinkles and deformation occur in the folded end portion 65, and the dimensional accuracy of the second container as a molded product is likely to be distorted.

  On the other hand, when the knurled groove portion 66 is provided in the folded end portion 65, the knurled groove portion 66 is bent in a bellows shape (like an accordion) when the folded end portion 65 is formed. As a result, distortion deformation is absorbed by the knurled groove 66. That is, distortion generated in the folded end portion 65 itself is reduced, and deformation of the covering peripheral wall portion 63 and the folded end portion 65 can be suppressed.

  In the tamper-proof container of this device, after the containers are once fitted as described above, the containers cannot be removed unless the tamper-proof structure is destroyed. This is inconvenient when the original container is opened. Therefore, a mechanism for releasing the tamper-proof structure is provided in advance. Specifically, an easily breakable portion 70 and an opening portion 80 for breaking the second flange portion 60 of the second flange portion 60 are provided (see FIG. 1 and the like). That is, the covering peripheral wall portion 63 and the folded end portion 65 of the second flange portion 60, which is the tamper-proof structure Sr, are pulled away from the first flange portion 20 of the first container 10 through the easily breakable portion 70 and the opening portion 80. .

  According to FIGS. 1 and 5, the easily breakable portion 70 is formed in a straight line on all (all circumferences) or part of the peripheral wall direction of the covering peripheral wall portion 63 of the second flange portion 60. In the example shown in FIGS. 1 and 5A, the easily breakable portion 70 is provided in a part of the second flange portion 60. In the example of FIG. 5B, the easily breakable portion 70 is provided on the entire second flange portion 60 (entire circumference). In these arrangements, the easily breakable portion 70 is close to the vicinity of the end (end portion 64) of the covering peripheral wall portion 63, and the force easily reaches the easily breakable portion 70 from the outside relatively easily. Note that the location of the easily breakable portion 70 is defined in consideration of the shape and size of the container, the material and strength of the container, and the like.

  FIG. 6 is an enlarged cross-sectional view of the main part of the second flange portion 60. Details of the easy-to-break portion 70 will be described with reference to FIG. The easily breakable portion 70 disclosed in FIG. 6A is a thin portion 74. The thin portion 74 is formed only on one surface side of the covering peripheral wall portion 63. As shown in the drawing, only the thin portion 74 is thinner than other portions of the covering peripheral wall portion 63. According to FIG.6 (b), the easily breakable part 70 is the intermittent hole part 76 in which the several through-hole part 77 was comprised in the shape of a point sequence. The intermittent hole portion 76 intermittently forms a through portion (through hole portion 77) so that the strength of the second flange portion 60 does not extremely decrease, and does not continuously form the through portion like a slit.

  Accordingly, the structural strength of the second flange portion 60 is intentionally weakened at the thin portion 74 or the intermittent hole portion 76 of the easily breakable portion 70. As a result, the second flange portion 60 is broken through the easy-to-break portion 70 by a slight operation. The depth of the groove of the thin portion 74, the interval between the intermittent hole portions 76, and the like are defined in consideration of the shape and size of the second container, the material and strength of the container, and the like. The illustrated thin portion 74 or the intermittent hole portion 76 is an example, and shapes and forms other than those disclosed are allowed. The thin portion 74 and the intermittent hole portion 76 are formed by, for example, a known laser processing machine using laser beam irradiation.

  As understood from the above description, in the second container 50, the covering peripheral wall portion 63 around the second flange portion 60 is orthogonal, and the structural strength is enhanced. Further, since the folded end portion 65 is also provided, the structure is resistant to destruction and deformation. Therefore, even if the easy-to-break portion 70 is provided, the easy-to-break portion 70 is not utilized unless there is a mechanism that can easily reach the easily-breakable portion 70. Therefore, the second flange portion 60 is provided with an opening portion 80 that serves as an opportunity to destroy the second flange portion.

  According to FIGS. 1 and 5, the opening portion 80 is formed from the end 64 side of the covering peripheral wall portion 63 to the extending direction side of the easily breakable portion 70, and is connected to the easily breakable portion 70. The opening 80 enables the end 64 of the covering peripheral wall 63 to be broken. Then, by breaking the end portion 64 of the covering peripheral wall portion 63, continuous breakage from a part of the covering peripheral wall portion 63 to the easily breakable portion 70 becomes possible. The unsealed portion 80 is also formed as a thin portion or an intermittent hole portion by a known laser processing machine, similarly to the easily breakable portion 70 (the thin portion 74 or the intermittent hole portion 76).

  An opening portion 80 </ b> A shown in FIG. 5A is a combination of straight portions 81 including an inclined portion 82 that is inclined toward the extending direction of the easily breakable portion 70. The opening part 80B shown in FIG.5 (b) is the circular arc-shaped part 83 curved to the expansion | extension direction side of the easily destructible part. When the container is opened, particularly when the second container 50 is to be removed from the first container 10, the covering peripheral wall 63 in the vicinity of the opening 80 is picked up by the left and right fingers of the user, and in a staggered direction (for example, in front of the page). Side and back side). In particular, as shown in the drawing, each unsealing portion 80 has a portion on the end portion 64 side of the covering peripheral wall portion 63 extending substantially upward from the end portion 64 and is further bent toward the easily breakable portion 70 (FIG. )) Or a curved shape (FIG. 5B) and connected to the easily breakable portion 70. Therefore, the opening part 80 (80A, 80B) is first broken at the end part 64 side of the covering peripheral wall part 63. And this fracture | rupture reaches | attains easily the easily breakable part 70 along the shape of the opening part 80 (80A, 80B), and the easily breakable part 70 itself is also destroyed sequentially. As described above, the break from the end portion 64 is appropriately guided to the easily breakable portion 70 by the opening portion 80 (80A, 80B), and finally the second flange portion 60 is broken, and the first container 10 and the second container. The seal with 50 is released.

  Further, as shown in FIG. 5, the opening portion 80 is provided with a display portion 85 in order to make the opening portion of the covering peripheral wall portion 63 conspicuous and be easily recognized through the user's vision. . The display unit 85 serves as a mark of the starting point of destruction when the second container 50 is opened. The display portion 85 in FIG. 5A is a colored display portion 86, and a part of the covering peripheral wall portion 63 including the opening portion 80 (80A) is colored in a color that can be distinguished from other portions of the second flange portion. The The display part 85 of FIG.5 (b) is the arrow display part 87, and shows the opening part 80 (80B) by the color etc. which can be distinguished from the other site | part of a 2nd flange part in the vicinity of the opening part 80 (80B). (Arrow) is formed. Any of the display parts 85 (coloring display part 86, arrow display part 87) can be easily formed by a known printing method or the like, and the user can easily recognize the presence of the opening part 80. In the embodiment, the coloring display unit 86 and the arrow display unit 87 are printed by a known method such as inkjet.

  Here, the state of the combination of the first container 10 and the second container 50 and the state when they are forcibly separated will be described with reference to FIGS. FIGS. 7 to 10 are main part longitudinal end views of the first flange portion 20 and the second flange portion 60. In order to make the main part easy to understand, an end view is used. FIG. 7 shows a separated state before the first container 10 and the second container 50 are combined. Since the description of each part is as described with reference to FIG.

  FIG. 8 shows a state immediately before the second container 50 is pressed against the first container 10 and both are bonded together. First, the covering peripheral wall portion 63 and the folded end portion 65 of the second flange portion 60 are in contact with the flange end portion 21 and the bending edge portion 22 of the first flange portion 20 provided in the first container 10. At this time, the covering peripheral wall portion 63 and the folded end portion 65 are slightly crushed and deformed so as to spread outward from the original state (FIG. 7). Since the second container 50 is a molded body made of a synthetic resin sheet, flexible deformation as shown is easy. By this deformation, the first flange portion 20 can be received inside the covering peripheral wall portion 63.

  FIG. 9 shows a state where the second container 50 is attached to the first container 10 and the combination is completed. The covering peripheral wall portion 63 and the folded end portion 65 of the second container 50 enclose the flange end portion 21 and the bent edge portion 22 of the first flange portion 20. And the coating | coated surrounding wall part 63 and the folding | turning edge part 65 return to the original state (refer FIG. 7) with the restoring force of resin elasticity. As can be seen from the drawing, the folded end portion 65 of the second flange portion 60 has a hook shape and supports the back surface portion 23 of the first flange portion 20. From this relationship, the first flange portion 20 is sandwiched from both the upper and lower directions of the flange main body portion 62 and the folded end portion 65 of the second flange portion 60, and the fixing performance by the two flange portions is enhanced.

  FIG. 10 shows a state in which the second container 50 is forcibly separated from the first container 10. That is, the container has been opened illegally. When the second container 50 is to be separated from the first container 10, the flange end 21 and the bent edge 22 of the first flange 20 are caught by the folded end 65. Part 22) does not come off the folded end 65. However, if the second container 50 is forcibly pulled away from the first container 10, the covering peripheral wall portion 63 and the folded end portion 65 of the second container 50 are bent and the bent end portion 21 of the first flange portion 20 and the bent end portion 21 are bent. Due to the resistance of the edge 22, it deforms unnaturally as shown. It can be said that the 2nd flange part 60 passed through the state which can be distorted, and became the yielding state.

  Once the folded end 65 of the second flange portion 60 is in a yielding state, it cannot be restored to the initial state (see FIG. 7), and therefore the trace of unauthorized opening cannot be hidden. Therefore, if the structure around the second flange portion 60 of the second container 50 in the state shown in the figure is confirmed, it can be easily confirmed whether or not the unauthorized opening has been performed. The tamper-proof structure in the present invention makes it possible to find an inappropriate container opening by using such unnatural shape deformation as a trace.

  FIG. 11 is a perspective view before the tamper-proof container 2 of the second embodiment is combined. Similarly to the falsification preventing container 1 (see FIG. 1) of the first embodiment, the first flange portion 10x of the first container 10x extends outward from the container body 13 of the container around the entire periphery 12 of the opening 11. Is provided. The second container 50x is also provided with a second flange portion 60x that extends outward from the container body 53 of the container around the entire periphery 52 of the opening 51. The flat plate portion 14 of the first container 10 is a bottom portion of the container main body C. The flat plate portion 54 of the second container 50 is a top plate in the lid T.

  As a feature of the falsification preventing container 2, the opening 11 and the second container 50x of the first container 10x are both formed in a polygonal shape in plan view. In the figure, it is a chamfered rectangle (rectangle). In addition, as shown in the figure, the easily breakable portion 70 and the opening portion 80 are provided in the second flange portion 60x. Since the structure of the easily breakable portion is as described above, the description thereof is omitted. The easily breakable portion 70 in this example is provided on one side including the corner portion of the second flange portion 60x.

  As illustrated in the anti-falsification container 2, the container shape to which the anti-falsification structure Sr can be applied is relatively free. The tamper-proof structure itself can be applied to polygons other than those shown in the drawings, as well as appropriate shapes such as ellipses and stars. In other words, it is possible to design a free container according to the packaging object, and at the same time, the function of preventing falsification is effectively exhibited even with these containers. Moreover, the easy-to-break part should just accelerate | stimulate destruction of a 2nd flange part at the time of a container opening necessity, and can remove the 2nd container smoothly. Therefore, the easily destructible portion is formed only at a necessary portion in consideration of the shape of the container itself.

  FIG. 12 is an overall longitudinal sectional view of the tamper-proof container 3 of the third embodiment. The tamper-proof container 3 shown in the figure is a state in which the first container 10y of the lid body T is overlapped on the second container 50y of the container main body C, and is in the form of internal fitting by the second container 50y. The first flange portion 20y of the first container 10y is joined to the second flange portion 60y of the second container 50y. Like the falsification preventing container 3, the main part of the falsification preventing structure Sr can be provided on the container main body C side. Therefore, the tamper-proof structure can be freely arranged on either the container main body or the lid, and the upper and lower options can be freely selected together with the shape of the container. If it does so, the range of selection of the container shape according to the packaging object of a container will spread, and it will become easy to respond to the request | requirement of the provider who uses a container. At the same time, it can be shaped to enhance the visual impression, and the appeal effect to the buyer can be enhanced.

  In the second and third embodiments (FIGS. 11 and 12), the same reference numerals are used for the structures common to the first embodiment, and redundant descriptions are omitted. Each embodiment of the disclosed anti-tamper container is an example disclosing the form of the present invention, and is not limited to the form shown and described in detail. Elements in the tamper-proof container of each embodiment can be appropriately combined within a range that matches the spirit of the present invention.

  As described above, the tamper-proof container according to the present invention can easily determine whether or not the tampering has been opened, and can be performed very simply during normal opening. Therefore, it is possible to effectively suppress the sale of inappropriate articles such as foreign matter mixed in the container.

1, 2, 3 Anti-tampering container 10, 10x, 10y First container 11 Opening portion 12 Peripheral 13 Container body portion 14 Flat plate portion 20, 20x, 20y First flange portion 21 Flange end portion 22 Bending edge portion 50, 50x, 50y Second container 51 Opening 52 Peripheral 53 Container body 54 Flat plate 60, 60x, 60y Second flange 62 Flange body 63 Covered peripheral wall 64 End 65 Turned end 66 Knurled groove 70 Easily destructible part 74 Thin part 76 Intermittent hole 77 Through-hole part 80, 80A, 80B Unsealed part 81 Linear part 82 Inclined part 83 Arc-shaped part 85 Display part 86 Colored display part 87 Arrow display part Sr Tamper-proof structure C Container body T Lid

Claims (8)

A first container comprising a first flange portion extending outwardly of the container main body around the entire periphery of the opening;
A second container made of a sheet-like molded body mainly composed of synthetic resin and provided with a second flange portion extending outward from the container main body around the entire periphery of the opening;
The second flange portion is combined with the first flange portion, and the second container is configured to be combined with the first container.
The second flange portion covers a flange end portion of the first flange portion and is perpendicular to the flange main body portion of the second flange portion and extends toward the first container, and an end of the coated peripheral wall portion A folded end portion that is formed on the first flange portion and is folded back to the second container side so as to be engageable with the back surface portion of the first flange portion,
A straight easy-to-break portion formed on all or part of the peripheral wall direction of the covering peripheral wall portion of the second flange portion is provided, and continuous from a part of the covering peripheral wall portion to the easily breakable portion. A tamper-proof container characterized in that an opening is provided for destruction.   The tamper-proof container according to claim 1, wherein the easily breakable portion is formed by a thin portion or an intermittent hole portion.   The said opening part is a combination of the linear part containing the inclination part which was formed in the extending | stretching direction side of the said easily breakable part from the edge part side of the said coating surrounding wall part formed by the thin part or the intermittent hole part. Tamper-proof container as described.   The tamper-proof container according to claim 1 or 2, wherein the unsealing part is an arcuate part formed by a thin part or an intermittent hole part and curved from an end side of the covering peripheral wall part to an extension direction side of the easily breakable part. .   The tamper-proof container according to any one of claims 1 to 4, wherein a display portion is attached to the opening portion.   The tamper-proof container according to claim 5, wherein the display unit is a colored display unit or an arrow display unit.   The tamper-proof container according to any one of claims 1 to 6, wherein a knurled groove is formed at the folded end.   The tamper-proof container according to any one of claims 1 to 7, wherein each opening of the first container and the second container has a circular shape in plan view.

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