JP3158883U - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container in which the wall thickness of the packaging container remains unchanged and a degree of freedom can be obtained in the breaking direction. SOLUTION: A packaging container 1 containing contents is produced by injection molding, and the contents are filled and stored from an opening 1b at the bottom, and a film 3 is placed in a collar 1c provided on the peripheral edge of the opening 1b. Adhesion closes the opening 1b. Starting from the cut end 1c1 provided in a part of the flange portion 1c, the injection molding gate mark 1e is radially centered on the injection molding gate mark 1e toward the injection molding gate mark 1e of the packaging container 1. The packaging container 1 can be broken along the direction of the flow of the injected resin, and the contained contents can be taken out. [Selection diagram] Fig. 1

Description

  The present invention is a packaging container in which contents are filled and stored from an opening at the bottom of a packaging container containing the contents, and the opening is closed by adhering a film to a collar provided at the periphery of the opening. It is about.

  Conventionally, an example of a packaging container in which the contents are filled and stored from an opening at the bottom of the packaging container containing the contents, and the opening is closed by adhering a film to a flange provided at the periphery of the opening There is a mirror bowl. When taking out the mirror bowl contained in the mirror bowl container, it is necessary to break out the mirror bowl container and take out the resin of the container in some cases.

  Therefore, Japanese Patent Application Laid-Open No. 2008-296928 (Patent Document 1) proposes a method in which a concave cutting line portion is formed in advance in the mirror bowl container, and the mirror bowl is cut along the concave cutting line section to take out the mirror bowl. Has been. In JP 2009-083926 A (Patent Document 2), a plastic sheet is formed into a two-layered mirror shape, and the direction of the cutting notch in the sheet flow direction when the sheet is formed. Have been proposed to tear the mirror container along the sheet flow direction and take out the mirror container.

JP 2008-296928 A JP 2009-083926 A

  However, in the technique of the above-mentioned patent document 1, since the inner surface portion of the concave cutting line portion is thinner than other inner surface portions, the concave cutting line portion is easily broken locally, such as during transportation. Careful handling was required. Further, in the technique of Patent Document 2, it is easy to tear along the sheet flow direction, but it is difficult to tear in other directions that are perpendicular to the sheet flow direction, for example, and can be torn only in a predetermined direction. There was a problem of lacking.

  The present invention solves the above-mentioned problems, and an object of the present invention is to provide a packaging container in which the thickness of the packaging container remains the same and the degree of freedom can be obtained in the breaking direction.

  A first configuration of a packaging container according to the present invention for achieving the above object is that a packaging container containing contents is formed by injection molding, and the contents are filled and stored from an opening at the bottom, A packaging container in which a film is adhered to a flange provided at a peripheral edge of an opening to close the opening, and the packaging starts from a cut provided in a part of the flange of the packaging container. The packaging container is broken and encapsulated along the direction of the flow of resin radially injected from the injection molding gate trace to the injection molding gate trace toward the injection molding gate trace of the container. The contents can be taken out.

  Moreover, the 2nd structure of the packaging container which concerns on this invention is a said 1st structure. WHEREIN: The said content is a solid food, The said packaging container respond | corresponds to the outer peripheral surface shape of the solid food contained. It is produced by injection molding, and the fluid of the solid food can be filled and stored from the opening at the bottom.

  Further, a third configuration of the packaging container according to the present invention is the above-described second configuration, wherein the content is a mirror bowl, and the packaging container is created by injection molding corresponding to the outer peripheral surface shape of the mirror bowl included. In addition, the outer peripheral surface in the vicinity of the bottom portion is curved and protrudes outward, and the bottom portion has an opening having a diameter smaller than the outer diameter of the curved protrusion, and the mirror can be filled and stored from the opening. Features.

  The fourth configuration of the packaging container according to the present invention is characterized in that, in the first to third configurations, the injection molding gate mark is provided in a central portion of the top surface of the packaging container. .

  Moreover, the 5th structure of the packaging container which concerns on this invention is the said 1st-4th structure WHEREIN: The knob | pick part for fracture | rupturing the said packaging container on the both sides of the cut provided in a part of the said packaging container is provided. It is provided.

  According to the 1st structure of the packaging container which concerns on this invention, it is for the said injection molding from the cut provided in a part of said collar part of a packaging container as a starting point toward the gate trace for injection molding of this packaging container. The packaging container can be easily broken along the direction of the flow of the resin injected radially from the gate mark around the injection molding gate mark, and the contained contents can be taken out.

  Moreover, according to the 2nd structure of the packaging container which concerns on this invention, the content can be applied to solid foods, such as a pudding, and it can take out from a packaging container easily, maintaining the external shape of a solid food. .

  Further, according to the third configuration of the packaging container according to the present invention, the contents can be applied to a mirror with the outer peripheral surface in the vicinity of the bottom curved and protruded outward, and the outer shape is maintained without the need to cut the cured mirror. Thus, it can be easily taken out from the packaging container.

  Moreover, according to the 4th structure of the packaging container which concerns on this invention, by providing the gate trace for injection molding in the center part of the top | upper surface of a packaging container, the center part of the top | upper surface from the opening part of the bottom part of a packaging container. Can be ruptured in any direction radially, and a degree of freedom is obtained in the rupture direction.

  Moreover, according to the 5th structure of the packaging container which concerns on this invention, a packaging container can be easily fractured | ruptured by picking the knob | pick part provided in the vicinity both sides of the cut provided in a part of packaging container.

It is an isometric view explanatory drawing which shows the structure of 1st Embodiment of the packaging container which concerns on this invention. It is a decomposition explanatory view showing composition of a 1st embodiment of a packaging container concerning the present invention. It is a perspective explanatory view which shows a mode that the packaging container of 1st Embodiment is fractured | ruptured and the content is taken out. It is sectional explanatory drawing which shows a mode that the packaging container of 1st Embodiment is produced by injection molding. (A) is perspective explanatory drawing which shows the structure of 2nd Embodiment of the packaging container which concerns on this invention, (b) fractures | ruptures the discharge outlet provided in the collar part of the packaging container of 2nd Embodiment, and takes out the contents It is a perspective explanatory view showing a situation.

  An embodiment of a packaging container according to the present invention will be specifically described with reference to the drawings. First, the structure of 1st Embodiment of the packaging container which concerns on this invention using FIGS. 1-4 is demonstrated.

  1 to 4, reference numeral 1 denotes a packaging container that encloses kagami 2 as a solid food, and is produced by injection molding corresponding to the outer peripheral surface shape of kagami 2 as shown in FIG. 4. The FIG. 4 shows an example of injection molding using a center pin gate mold. The strip plate 6 is movable with respect to the core plate 4 by the ejector pins 5, and is opposed to the core portion 4 a of the core plate 4. , And a pair of cavities 7 divided into left and right.

  And after injecting resin from the spruce bush 8 to the metal mold | die of the state shown to Fig.4 (a), as shown in FIG.4 (b), after molding and hardening the packaging container 1, FIG.4 (c) ), The cavity 7 is divided into left and right parts and retracted, the spruce bush 8 is also retracted upward, and the strip plate 6 is raised by the ejector pins 5 as shown in FIG. 1 is pulled out from the core portion 4 a of the core plate 4.

  The packaging container 1 has an outer peripheral surface in the vicinity of the bottom curvedly protruding outward, and has an opening 1b having a diameter smaller than the outer diameter of the curved protruding portion 1a at the bottom. And in the state turned upside down as shown in FIG.1 (c), after the mirror 2 made into the fluid from the opening part 1b is filled and accommodated, the mirror 2 is hardened.

  A flange 1c is provided at the periphery of the opening 1b. A mirror case 2 is filled and accommodated in the packaging container 1, and after the mirror 2 is cured, the film 3 is adhered to the flange 1c to open the opening 1b. Is closed (see FIG. 1A).

  A cut 1c1 is provided in a part of the flange 1c of the packaging container 1, and a knob 1c2 for breaking the packaging container 1 is provided on both sides in the vicinity of the cut 1c1. Then, as shown in FIG. 3, by pulling the knob 1c2 in opposite directions, the cut 1c1 is set as the starting point toward the injection molding gate mark 1e provided at the center of the top surface 1d of the packaging container 1. Thus, the packaging container 1 is easily broken along the direction of the flow of the resin radially injected from the injection molding gate trace 1e around the injection molding gate trace 1e, and the enclosed mirror 2 is taken out. I can do it.

  When removing the mirror bowl 2, the film 3 may be peeled off from the flange 1c of the packaging container 1 and then the packaging container 1 may be broken. Alternatively, the film 3 may be broken together with the packaging container 1 in advance. You can do it.

  In the present embodiment, a synthetic resin in which polypropylene and polyethylene are kneaded at a predetermined ratio is used as the material of the packaging container 1, but the materials of the packaging container 1 and the film 3 are not limited to these.

  According to the above configuration, the cut 1c1 provided in a part of the flange 1c of the packaging container 1 starts from the injection molding gate mark 1e toward the injection molding gate mark 1e of the packaging container 1. The packaging container 1 can be easily broken along the direction of the flow of the resin injected radially around the injection molding gate mark 1e, and the enclosed mirror 2 can be taken out. Therefore, it can be set as the packaging container 1 with which the thickness of the packaging container 1 is left as it is, and a degree of freedom is obtained in the breaking direction.

  Further, the contents can be applied to solid foods such as pudding and kagami 2 and can be easily taken out from the packaging container 1 while maintaining the outer shape of the solid foods.

  Further, the contents can be applied to the mirror bowl 2 whose outer peripheral surface in the vicinity of the bottom curve protrudes outward, and the cured mirror bowl 2 can be easily taken out from the packaging container 1 without maintaining the outer shape without being cut.

  Further, by providing the injection molding gate mark 1e at the center of the top surface 1d of the packaging container 1, the opening 1b at the bottom of the packaging container 1 is radially directed in any direction toward the center of the top surface 1d. It can be broken and a degree of freedom is obtained in the breaking direction.

  Further, the packaging container 1 can be easily broken by picking the knobs 1c2 provided on both sides in the vicinity of the cut 1c1 provided in a part of the packaging container 1.

  Next, the structure of 2nd Embodiment of the packaging container based on this invention is demonstrated using FIG. In FIG. 5, a liquid or jelly-like fluid is filled and stored as a content 9 in a rectangular packaging container 1 from an opening (not shown) at the bottom, and a film (not shown) is provided on the flange 1c provided at the periphery of the opening. Is bonded to close the opening. In the flange portion 1c of the present embodiment, a discharge port 1c3 for discharging the contents 9 is provided, and a terminal portion of the discharge port 1c3 is provided inside the outer peripheral edge of the flange portion 1c.

  A cut 1c1 is provided in a part of the flange 1c, and a knob 1c2 for breaking the discharge opening 1c3 formed in the flange 1c of the packaging container 1 is provided on both sides in the vicinity of the cut 1c1. Further, an injection molding gate mark 1e of the packaging container 1 is provided on the opposite side of the cut opening 1c1 across the discharge opening 1c3 of the flange portion 1c.

  Then, by pulling the pair of knobs 1c2 in opposite directions, the cut 1c1 provided in a part of the flange 1c of the packaging container 1 is used as a starting point, and toward the injection molding gate mark 1e. Part of the flange 1c including a part of the discharge port 1c3 of the packaging container 1 along the flow direction of the resin radially injected from the injection molding gate mark 1e to the center of the injection molding gate mark 1e The content 9 contained can be taken out from the opening of the discharge port 1c3 by breaking 1c4. Other configurations are the same as those in the first embodiment, and similar effects can be obtained.

  As an application example of the present invention, the contents are filled and stored from the opening at the bottom of the packaging container containing the contents, and the opening is closed by adhering a film to a flange provided at the periphery of the opening. Applicable to packaging containers.

DESCRIPTION OF SYMBOLS 1 ... Packaging container 1a ... Curve protrusion part 1b ... Opening part 1c ... Ridge part
1c1… Cut
1c2… knob
1c3… discharge port
1c4 ... Part 1d of heel part ... Top surface 1e ... Gate trace 2 for injection molding ... Mirror bowl (contents; solid food)
3 ... Film 4 ... Core plate 4a ... Core portion 5 ... Ejector pin 6 ... Strip plate 7 ... Cavity 8 ... Spruce bush 9 ... Contents

Claims (5)

A packaging container containing the contents is prepared by injection molding, and the contents are filled and stored from the opening at the bottom, and a film is adhered to the flange provided at the periphery of the opening to form the opening. A sealed packaging container,
Starting from a cut provided in a part of the flange of the packaging container, toward the injection molding gate trace of the packaging container, radially from the injection molding gate trace to the injection molding gate trace. A packaging container characterized in that the packaged container can be broken along the flow direction of the injected resin to take out the contained contents. The content is a solid food, and the packaging container is made by injection molding corresponding to the outer peripheral surface shape of the solid food to be contained, and the fluid of the solid food is supplied from the opening at the bottom. The packaging container according to claim 1, wherein the packaging container can be filled and stored. The contents are a mirror bowl, and the packaging container is made by injection molding corresponding to the outer peripheral surface shape of the mirror bowl contained therein, and the outer peripheral surface in the vicinity of the bottom part is curved and protrudes outward, and the curved protrusion protrudes from the bottom part. The packaging container according to claim 2, wherein the packaging container has an opening having a diameter smaller than an outer diameter of the portion, and can be filled and stored with a mirror from the opening. The packaging container according to any one of claims 1 to 3, wherein the injection molding gate mark is provided in a central portion of the top surface of the packaging container. The packaging container according to any one of claims 1 to 4, wherein a grip portion for breaking the packaging container is provided on both sides in the vicinity of a cut provided in a part of the packaging container.

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