JP2007055656A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To keep a lid body surely fixed to a container main body when the lid is closed, and all easy opening of the lid body when the lid is opened, regarding a packaging container which is used, e.g., when various kinds of foods, or the like are preserved or displayed for vending while being housed, especially, a packaging container comprising the container main body and the lid body which are manufactured by thermally forming a synthetic resin sheet. <P>SOLUTION: This packaging container 1 comprises the container main body 2 and the lid body 3 which are manufactured by thermally forming the synthetic resin sheet. In the packaging container 1, on the peripheral edge section of the packaging container 1, a fixing section 4 which fixes the container main body 2 and the lid body 3 to each other is provided. On the lid body 3 at the container on the internal side of the fixing section 4, easily cutting lines 5a and 5b for unsealing the lid body 3 are provided. Two pieces of the easily cutting lines are provided, e.g., on the lid body at the container on the internal side of the fixing section, and a peeling section which is pinched by the two pieces of the easily cutting lines 5a and 5b is torn off along the easily cutting lines, and thus, the lid body can be unsealed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a packaging container used for storing, storing, and selling various foods, for example, and in particular, a packaging container comprising a container body and a lid manufactured by thermoforming a synthetic resin sheet. About.

  Conventionally, in packaging containers such as those described above, particularly food packaging containers, a lid is placed on the top of the container body so as to cover the food contained in the container body, so that the lid does not open carelessly. It is generally fixed to the container body by fitting or fusion. Specifically, for example, when the container main body and the lid are fitted, a structure for fitting the container main body and the peripheral flange portion of the lid or the like is provided, or the container main body and the peripheral edge of the lid are mutually connected. The concave and convex portions to be fitted are formed, and both are fitted and fixed so that the lid is not opened carelessly.

  When the container main body and the lid are fused, for example, the inside of the container is completely sealed by fusing the peripheral portions of the container main body and the lid over the entire length with a thermal mold or the like, as in Patent Document 1 below. In addition, the lid body is not inadvertently opened by fusing a plurality of portions of the peripheral portion of the container main body and the lid body and fixing them in an unopenable manner.

  However, when the container main body and the lid are firmly fixed by the above-described fitting or fusion, when the lid is opened, the fixing site or its vicinity may be broken and opened as described in Patent Document 1 above. Not a few. At that time, there is a possibility that a crack derived from the above-mentioned fracture portion may spread to the inside of the container body. In particular, when liquid contents are accommodated inside the container body, it will be removed from the above-mentioned crack. There was a risk of leaking.

  In addition, for example, a tongue piece or small piece provided to protrude from the peripheral part of the container main body or the lid, etc. is picked with a finger, and a part of the container is torn off and separated, and the tongue piece is used. In some cases, small pieces were broken and mixed into the container, or scattered around and contaminated the environment. Furthermore, when the container body and the lid are closed with a concavo-convex fitting that can be easily resealed, the container can be resealed with foreign matter mixed in while the container is being displayed. There were problems such as difficult prevention measures against criminal crimes.

Japanese Utility Model Publication No. 8-1172

  The present invention has been proposed in view of the above-mentioned problems, and when the lid is closed, the lid body can be held in a state of being firmly fixed to the container body, and it is difficult to reseal in the same state as when not opened or An object of the present invention is to provide a packaging container in which the lid can be easily opened when the lid is opened.

  In order to achieve the above object, the packaging container according to the present invention has the following configuration. That is, in a packaging container composed of a container main body and a lid manufactured by thermoforming a synthetic resin sheet, a fixing portion for fixing the container main body and the lid to each other is provided on the peripheral edge of the packaging container. An easy-cut line for opening the lid is provided on the lid inside the container with respect to the fixing portion.

  As described above, the fixing portion for fixing the container body and the lid to each other is provided at the peripheral portion of the packaging container, and the easy-cut line for opening the lid on the lid inside the container from the fixing portion. When the lid is closed, the container main body and the lid body can be securely held by the fixing portion when the lid is closed, and the lid body is cut along the easy cutting line when the lid is opened. By doing so, the lid can be easily opened.

  In addition, two said easy-cut lines are provided in the lid body inside a container rather than the said adhering part, and the part pinched | interposed by the two easy-cut lines is made into a peeling part along said two easy-cut lines. It is preferable that the lid can be opened by tearing off. In that case, one easy cutting line of the two easy cutting lines is provided until it reaches the other side from one side of the lid, and the other easy cutting line is provided from one side of the lid to the other side. If the peeling part sandwiched between the two easy-cutting lines is torn off by being provided halfway, the peeling part is inadvertent if the peeling part remains in a state of being connected to the lid. In addition, it can be prevented from being mixed in containers and foods and scattered around.

  Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings. 1A is a plan view showing an embodiment of a packaging container according to the present invention, FIG. 1B is a partially longitudinal front view thereof, and FIG. 2A is an enlarged plan view of a part of the packaging container. FIG. 3B is a front view thereof, and FIG. 3 is a cross-sectional view taken along line AA in FIG.

  The packaging container 1 of the present embodiment includes a flat, substantially rectangular dish-shaped container body 2 manufactured separately by thermoforming a synthetic resin sheet, and a lid 3 covering the container body. In this embodiment, 2 is made of an opaque synthetic resin sheet, and the lid 3 is made of a transparent synthetic resin sheet.

  The peripheral portion of the packaging container 1 is provided with a fixing portion 4 for fixing the container body 2 and the lid body 3 to each other. The fixing portion 4 can thereby easily remove the lid body 3 from the container body 2. As long as it is difficult to open or can be fixed to the extent that it is impossible, fitting, fusing, adhesion, etc. are appropriate, but in this embodiment, they are fitted together as shown in FIG. The concave portion 21 and the convex portion 31 are provided in the container main body 2 and the lid body 3 respectively, and the concave portion 21 and the convex portion 31 are firmly fitted and fitted, whereby the lid body 3 can be easily detached from the container main body 2. It is difficult or impossible to open the package. In addition, the number and arrangement position of the fixing portions 4 are also appropriate, but in this embodiment, as shown in FIG. It is the structure provided in the two corners of a direction.

  And in the lid body 3 between the container inner space 10 and the anchoring portion 4 inside the container than the anchoring portion 4, easy cut lines 5a and 5b for opening the lid body 3 are provided. The structure is appropriate as long as the easy-cut line can be easily cut with a finger or the like, and for example, a perforation line, a half-cut line, or the like can be applied. In addition, the above easy-cut lines 5a and 5b can be opened by cutting a part of the lid 3 while the container body 2 and the lid 3 are fixed to each other by the fixing portion 4. For example, the arrangement position, the number, etc. are appropriate. In this embodiment, as shown in FIGS. 1 and 2, there are a plurality of easy cutting lines formed by perforation lines between the fixing portion 4 and the container inner space 10, and in the case of the drawing, two easy cutting lines 5a. -5b is provided, and the portion sandwiched between the two easy-cutting lines 5a, 5b is used as a peeling portion 6 to tear off (strip off) the lid 3 along the cutting lines 5a, 5b. It is configured to be separable from the fixing part 4 and the container body 2.

  As shown in FIGS. 1 and 2, one easy cutting line 5a of the two easy cutting lines 5a, 5b is from one side of the lid 3 to the other side, particularly in the case of the figure, the fixing portion. 4 is provided so as to cross obliquely from one side 3a side to the other side 3b side of the corner provided with 4 and the other easy cutting line 5b extends from the one side 3a side to the other side 3b side. It is the structure provided to the middle position. Accordingly, when the peeling portion 6 sandwiched between the two easy-cut lines 5a and 5b is torn off along the easy-cut lines 5a and 5b, the entire length of the one easy-cut line 5a is cut and fixed. The lid on the side of the part 4 is completely separated from the lid on the inner side, and the other easy-to-cut line 5b is cut to the middle position on the side of the other side 3b and the remaining part is not cut off. It is made to remain in the state connected to the body 3 side.

  As shown in FIG. 2A, the end 6a of the peeling portion 6 is formed in a tongue shape so that the peeling portion 6 can be easily grasped with a finger or the like when the peeling portion 6 is torn off. 6a is provided with a non-slip protrusion 6b protruding downward. As shown in FIG. 2 (b), the protrusion 6b is in a state where the lower end is in contact with the upper surface of the edge of the container body 2, so that the end 6a is lifted obliquely upward as shown in FIG. is there.

  For example, when various kinds of foods are stored and stored in the packaging container 1 configured as described above or displayed and sold, the food is stored in the container main body 2 and the lid 3 is covered, and the container main body is covered. The downward convex portions 31 formed on the lid body 3 are fitted into the concave portions 21 opened at the upper surface provided at the two peripheral edge portions. Then, the concave portion 21 and the convex portion 31 are tightly fitted to each other, so that it is difficult or impossible to easily open the lid 3 from the container body 2, and if it is stored in that state or sold for display, etc. Good.

  On the other hand, when a consumer or the like opens the packaging container 1 containing the food, the end portion 6a of the peeling portion 6 having the anti-slip protrusion 6b is picked up with a finger or the like and lifted. At this time, the end portion 6a can be easily picked up because the end portion 6a is lifted obliquely upward by the projection 6b as described above. In this state, the end portion 6a is pulled up, and the peeling portion 6 is cut off along the easy cutting lines 5a and 5b. At this time, one of the easy cutting lines 5a is the lid 3 as described above. Since it is formed over the entire length from the edge on the one side 3a side to the edge on the other side 3b side, the lid body 3c on the fixing portion 4 side and the lid body 3 on the inner side are completely separated. 4A is a plan view of a part of the lid body separated from the container body 2, and FIG. 4B is a plan view of a part of the container body 2 after the lid body is separated. Since the other easy cutting line 5b is formed only up to the middle position on the other side 3b as described above, the peeling portion 6 is separated from the lid 3 as shown in FIG. It remains without being connected to the lid 3 side.

  By cutting the easy cutting line 5a inside the fixing portion 4 as described above, the lid on the fixing portion 4 side and the lid on the inner side can be completely separated. When two fixing portions 4 are provided as in the illustrated example, the lid 3 can be opened and closed with respect to the container body 2 by cutting the easy cutting line 5a inside the one fixing portion 4. The lid 3 can be completely separated from the container body 2 by cutting the easy cutting lines 5 a inside the two fixing portions 4. Further, if a part of the lid 3 is cut and opened as described above, it can be clearly determined that the lid has been opened, so that it is easy to find out when foreign matter such as that described above is mixed in the container. Furthermore, if the peeling part 6 remains in a state where it is connected to the lid 3 as described above, the peeling part 6 may be inadvertently mixed in a container or food, or may be scattered as a small garbage. Can be prevented.

  In the above embodiment, the container body 2 and the lid body 3 are formed separately. However, the container body 2 and the lid body 3 may be integrally formed and connected to each other so as to be openable and closable via a bent hinge portion or the like provided therebetween. Good. In that case, it suffices that at least one of the fixing part 4, the easy-to-cut lines 5a and 5b, the peeling part 6 and the like is provided on the side opposite to the hinge.

  In addition, when the container body 2 and the lid body 3 are fitted by the concave and convex portions 21 and 31 as in the above embodiment, not only the both 21 and 31 are tightly fitted as described above, but also preferably Performs molding that prevents the fitting part from coming off to the extent that it is difficult to re-fit, and once the fitting part is removed and opened, it is clearly visible that the fitting part has been deformed and opened from the outside after re-fitting. Thus, it is desirable to form the fitting portion.

  Furthermore, if the method of fixing by fitting with the concave and convex portions 21, 31 and the like as described above is employed, it is not necessary to prepare an expensive sealing device as in the case of fixing by fusion or the like, and only by a human manual work. There is an advantage that the container body and the lid can be fixed. Thereby, for example, packaging can be performed at a low cost even with a small production amount. In addition, when it is desired to fix completely, it is needless to say that the fixing portion may be partially sealed and bonded or fused.

  As a method of sealing the fixing part as described above, at least the surface layer for joining the container body 2 and the lid 3 may be heat-sealed as, for example, the same material resin, or at least the adhesive resin may be attached to the fixing part if necessary. Etc. may be arranged and heat-sealed. The adhesive resin may be commercially available, especially when the container is used for food packaging, the adhesive resin itself should be a product that does not interfere with food hygiene, and the food safety is impaired when the food container is formed. It is also important not to do so.

  The container main body 2 and the lid body 3 according to the present invention are generally configured so that the container main body 2 and the lid body 3 are fitted to each other, thereby safely separating the inside and the outside of the container. For the purpose of forming the easy-cutting lines 5a and 5b, the shape as shown in the illustrated example is most reasonable from the viewpoint of production efficiency. However, in the fixed portion 4 that is unevenly fitted as in the illustrated example in such a shape, the easy-cut lines 5a and 5b are separated from each other due to variations in the molded shape of the container and the like. May be pulled excessively. When the pulling force is large, the easy-cut lines 5a and 5b may break without being able to withstand the pulling force when the lid is closed. In order to prevent the above-described pulling force from being generated when the lid 3 is covered with the lid 2, a necessary amount of gap is formed between the fitting portions between the container body 2 and the lid 3 in the vicinity of the fixing portion 4 to provide a buffer. It is preferable to obtain an effect.

  As described above, according to the packaging container of the present invention, a fixing portion for fixing the container main body and the lid body is provided at the peripheral portion of the packaging container, and the lid body is provided on the lid body inside the fixing portion. With an extremely simple configuration that only provides an easy-cut line for easily breaking and separating the container from the container body, the lid body can be held securely attached to the container body when the lid is closed and the container can be opened. Since the lid can be easily opened at the time of the lid, the handleability of this type of container and the degree of freedom in selecting the application and design can be greatly increased.

(A) is a top view which shows one Embodiment of the container for packaging by this invention, (b) is the partially vertical front view. (A) is a partially enlarged plan view of the packaging container, and FIG. AA sectional drawing in Fig.2 (a). (A) is a top view of a part of the lid body separated from the container body, and (b) is a plan view of a part of the container body after the lid body is separated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container for packaging 2 Container main body 3 Lid body 4 Adhering part 5a, 5b Easy cutting line 6 Peeling part 6a End part 6b Non-slip protrusion 10 Empty part in container

Claims (3)

  In a packaging container comprising a container body and a lid body manufactured by thermoforming a synthetic resin sheet, a fixing portion for fixing the container body and the lid body to each other is provided on the peripheral edge of the packaging container, and the fixing A packaging container, wherein an easy-cut line for opening the lid body is provided on the lid body inside the container.   Two easy-cutting lines are provided on the lid inside the container with respect to the adhering part, and a portion sandwiched between the two easy-cutting lines is used as a peeling part to tear along the two easy-cutting lines. The packaging container according to claim 1, wherein the lid can be opened by means of. One of the two easy cutting lines is provided until reaching the other side from one side of the lid, and the other easy cutting line is halfway from one side of the lid to the other side. 3. The structure according to claim 2, wherein when the peeled portion sandwiched between the two easy-cut lines is torn off, the peeled portion remains connected to the lid. Packaging container.

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