JP5594458B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container for packaging powdery or liquid material and transferring contents to another container.

  Powdered (powdered or granular) foods such as instant coffee are generally sold in a sealed container such as a capped bottle in order to maintain airtightness after opening. There is also known a package in which the contents are simply packaged for the purpose of reusing the sealed container and refilling only the contents after the contents are consumed. As a package container, a pouch, a gusset bag, a cylindrical container with an opening sealed, and the like are widely used.

  When refilling the contents from these packages into other containers, the packages are opened and addressed to the openings of the other containers, and the contents are gradually transferred. At this time, the contents may spill and dirty hands and surroundings, and the transfer work is complicated.

  In order to solve this problem, Patent Document 1 proposes a package that allows the contents to be transferred more easily.

  FIG. 7 is a perspective view of a conventional package described in Patent Document 1, and FIG. 8 is a cross-sectional view taken along line B-B ′ shown in FIG. 7.

  The package 160 is obtained by filling a packaging container 130 in which a funnel part 120 is attached to an open end of a cylindrical container body 110 and filling the contents 150 and sealing the open end with a seal lid 140. The funnel part 120 has a funnel 121 and a side wall 122, and the side wall 122 is welded to the inner surface of the container body 110 with the narrow end side of the funnel 121 facing the open end.

  FIG. 9 is a cross-sectional view showing a usage state of the package shown in FIG.

  First, as shown in FIG. 9A, the package 160 is inverted and the seal lid 140 is brought into contact with the opening 171 of the other container 170. At this time, the axial center of each of the package 160 and the other container 170 is substantially coincident.

  Next, when the bottom of the package 160 is pressed in the direction of the arrow in the figure, the seal lid 140 is broken along the cutting line 141 as shown in FIG.

  As a result, the contents 150 flow through the inner surface of the funnel 120 to the other container 170, and the transfer of the contents 150 is completed.

  The package 160 described in Patent Document 1 includes a funnel 121 that guides the contents 150 into the other container 170, and the narrow-side funnel 121 is inserted into the other container 170 simultaneously with the breakage of the seal lid 140. Therefore, the transfer can be easily performed without spilling the contents 150 during the transfer.

JP 2009-7067 A

  Since the funnel parts have a structure in which the side wall is integrated with the funnel, from the viewpoint of ease of production, it is formed by integral molding with resin, and the container body is reduced in cost by reducing the amount of resin, resource saving, lightweight In general, it is generally made of paper in consideration of conversion. Thus, when both materials are different and the funnel part is joined to the inside of the container body, there is a need to separate the two in order to more strictly separate them when the packaging container is discarded.

  Therefore, an object of the present invention is to provide a packaging container that can realize a simple transfer operation of contents and can easily separate a funnel part from a container body.

The present invention relates to a packaging container for packaging powdery or liquid contents and transferring the contents to another container. Packaging container comprises a cylindrical container body having an open end, made of a material different from the material of the container body, and a funnel part which is fitted to the open end of the container body. The funnel part includes a funnel that decreases in diameter toward the open end and an annular side wall connected to the funnel and partially welded to the inner surface of the container body. The side wall and the container main body are not welded or pseudo-welded in at least one continuous portion of the entire circumference of the side wall that is not less than 1/4 and not more than 3/4.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to implement | achieve the transfer operation | work of a simple content, the packaging container with which isolation | separation of the funnel part from a container main body is easy can be produced.

The perspective view of the packaging container which concerns on embodiment of this invention Sectional drawing of the A-A 'line of the packaging container shown in FIG. Top view of the packaging container shown in FIG. In the packaging container shown in FIG. 1, explanatory drawing which shows the state which isolate | separates a container main body and funnel parts Top view of packaging container according to first modification Top view of packaging container according to second modification Perspective view of conventional package Sectional drawing of the B-B 'line of the package shown in FIG. Sectional drawing which shows the use condition of the package shown in FIG.

  1 is a perspective view of a packaging container according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the packaging container shown in FIG. 1, taken along line AA ′, and FIG. 3 is a packaging shown in FIG. It is a top view of a container. In FIG. 3, the seal lid is not shown to make the drawing easier to see.

  The packaging container 30 is obtained by mounting the funnel part 20 inside the container body 10.

  The container body 10 is formed in a cylindrical shape having a bottom surface and an open end, and a flange portion that extends outwardly is connected to the open end. The container body 10 is formed by cup-molding circular blanks made of a material mainly made of paper and fan-shaped or rectangular blanks.

  The funnel part 20 connects the funnel 21 whose diameter narrows toward the open end of the container body 10, the cylindrical side wall 22 connected to the funnel 21, and the outer surface of the funnel 21 and the inner surface of the side wall 22. It has a plurality of reinforcing ribs 23 provided intermittently. This funnel part 20 is formed by integral molding using resin.

  To assemble the packaging container 30, the funnel part 20 is fitted into the container body 10, and the outer surface of the side wall 22 of the funnel part 20 is welded to the inner surface of the container body 10 (part indicated by W in FIG. 2). The welding is performed by, for example, known ultrasonic welding, high-frequency heating, or hot air. At this time, an ultrasonic horn or a high-frequency welding jig is pressed against a part of the overlapping portion with the container body 20 or heated with hot air, so that the side wall 22 is partially covered with the container body 10. To weld. As a result, as shown in FIG. 3, a continuous range (a portion corresponding to the arc AB with the central angle θ in FIG. 3) of the entire circumference of the side wall 22 is welded to the container body 10. No, or pseudo welded (hereinafter, the side wall 22 in this range is referred to as “unwelded portion 24”). Naturally, the side walls 22 other than the unwelded portion 24 are welded to the container body 10. The pseudo welding refers to a state in which the unwelded portion 24 and the container main body 10 are slightly welded when heat generated at the welding portion is transmitted to the container main body 10 overlapping the unwelded portion 24 at the time of welding. . As described above, in the packaging container 30, the unwelded portion 24 is provided in a range smaller than half of the entire circumference of the side wall 22.

  The packaging container 30 is used in a packaged state in which the open end is sealed with a sealing lid 40 after filling the contents (not shown), and the contents can be simply transferred as described in Patent Document 1. Change can be realized.

  Moreover, the separation method of the container main body 10 and the funnel part 20 after the transfer of the contents is performed is as follows.

  FIG. 4 is an explanatory view showing a state in which the funnel parts are separated from the packaging container shown in FIG.

  First, the packaging container 30 is laid sideways so that the welded portion is on the upper side. Next, when the packaging container 30 is crushed by pressing the outer side surface of the packaging container 30 near the open end in the direction of the arrow in the figure, the funnel part 20 mounted inside is deformed. At this time, the unwelded portion 24 that is in a free state without being welded to the inner surface of the container body is largely pushed out to the outside of the open end of the container body 10. Then, a finger is put into the gap between the funnel part 20 and the container body 10 to firmly grasp the unwelded portion 24, and the funnel part 20 is pulled out from the container body 10. Thus, by providing the unwelded part 24, in addition to making it easy to grasp the funnel part 20 as described above, a portion where the funnel part 20 is welded to the container body 10 becomes a part. Therefore, the funnel part 20 can be easily separated from the container body 10.

  Here, the unwelded portion 24 is provided in at least one continuous portion of the entire circumference of the side wall 22 that is ¼ or more and ¾ or less (the central angle θ is 90 ° or more and 270 ° or less). It is preferable. When the unwelded portion 24 is less than a quarter of the entire circumference of the side wall 22 (center angle θ is 90 °), the unwelded portion 24 is not greatly pushed outward when the container body 10 is crushed, and the funnel parts Since it becomes difficult to put a finger into the gap between 20 and the container body 10, it is difficult to separate the container body 10 and the funnel part 20. On the other hand, if the unwelded portion 24 exceeds 3/4 of the entire circumference of the side wall 22 (center angle θ is 270 °), the bonding force between the container body 10 and the funnel part 20 becomes insufficient, and the contents are transferred. When the funnel part 20 is detached from the container body 10 due to the pressure received from the opening of another container during the operation shown in FIG. 9, the seal lid 40 cannot be opened or the container body is transported when the packaging container 30 is transported. There is a possibility that the funnel part 20 fixed to 10 may be displaced.

  Table 1 shows the relationship between the central angle θ, the ease of separation between the container body 10 and the funnel part 20, and the bonding force between the container body 10 and the funnel part 20. In Table 1, regarding the ease of separation of the funnel part 20 from the container body 10 in a packaging container provided with an unwelded portion in the range of each central angle θ, “○: Pull the funnel part from the container body without resistance. △: feel a little resistance when pulling out the funnel part from the container body, ×: feel resistance when pulling out the funnel part from the container body ”, and joining the container body 10 and the funnel part 20 Regarding the force, “○: The funnel part does not come off from the container body even if an external force is applied to the funnel part during the transfer of the contents. △: The funnel part is applied when an external force is applied to the funnel part during the transfer of the contents. Moves slightly inward of the container body. ×: When an external force is applied to the funnel part when the contents are transferred, the funnel part comes off from the container body.

(First modification)
FIG. 5 is a top view of the packaging container according to the first modification.

  The packaging container according to the first modification corresponds to two unwelded portions (the arc A1B1 with the central angle θ1 and the arc A2B2 with the central angle θ2 in FIG. 5) indicated by the hatching rising to the right on the side wall 22 of the funnel part 20. (Parts) 24a and 24b are provided so as to be line-symmetric with respect to a straight line that passes through the center point Z and extends in the left-right direction of the drawing. As described above, the packaging container according to the first modification differs from the packaging container according to the embodiment only in that two unwelded portions in a range smaller than half of the entire circumference of the side wall 22 are provided. .

  When the packaging container according to the first modification is crushed by the method shown in FIG. 4, the unwelded portions 24 a and 24 b are respectively pushed out from the open end of the container body 10, and the container body 10 and the unwelded portion 24 a And a gap between the container body 10 and the unwelded portion 24b are formed. Therefore, it becomes possible to take out the funnel part regardless of which finger is inserted into the gap, and the separation between the container body 10 and the funnel part 20 becomes easier.

(Second modification)
FIG. 6 is a top view of a packaging container according to a second modification.

  The packaging container according to the second modified example is provided with an unwelded portion 24 (portion corresponding to the arc AB of the central angle θ in FIG. 6) indicated by hatching rising upward in the funnel part 20. Thus, the packaging container according to the second modified example is different from the packaging container according to the embodiment only in that the unwelded portion 24 is provided in a range larger than half of the side wall 22.

  When the packaging container according to the second modified example is crushed by the method shown in FIG. 4, the unwelded portion 24 is pushed out from the open end of the container body 10 and the gap between the container body 10 and the funnel part 20. Is formed large. Therefore, it becomes easy to put a finger in the gap, and separation of the container body and the funnel part becomes easier.

  In the above-described embodiment and modification, one or two unwelded portions are provided. However, the present invention is not limited to this, and the unwelded portion per one continuous portion is not less than a quarter of the entire side wall and If it is 3/4 or less, for example, three unwelded portions may be provided.

  Moreover, in said embodiment and modification, although a container main body and funnel parts are cylindrical shapes, it is not specifically limited, For example, you may use the cylindrical container main body and funnel parts which have a polygonal cross section.

  Furthermore, in said embodiment and modification, although the funnel part is equipped with the rib, it is arbitrary about providing a rib.

  Examples in which the present invention is specifically implemented will be described below.

  The funnel part having the structure shown in FIG. 1 and integrally molded with a high-density polyethylene resin with a basic thickness of 0.8 mm was used.

The container body is composed of an open end, a bottom surface, and a cylindrical side surface. On the side surface of the container main body, in order from the outer surface, a low density polyethylene layer having a thickness of 20 μm, a paper layer having a weight of 300 g / m ² , a low density polyethylene layer having a thickness of 20 μm, an aluminum layer having a thickness of 7 μm, an adhesive layer, and a layer having a thickness of 12 μm. A sheet obtained by laminating a polyethylene terephthalate layer, an adhesive layer, and a low-density polyethylene layer (LDPE) having a thickness of 50 μm was used. On the bottom surface of the container body, in order from the outer surface, a low density polyethylene layer having a thickness of 20 μm, a paper layer having a weight of 230 g / m ² , a low density polyethylene layer having a thickness of 20 μm, an aluminum layer having a thickness of 7 μm, an adhesive layer, and a layer having a thickness of 12 μm. A sheet obtained by laminating a polyethylene terephthalate layer, an adhesive layer, and a low-density polyethylene layer (LDPE) having a thickness of 50 μm was used.

  To assemble the packaging container, fit the funnel part into the open end of the container body, and partially heat-weld the side wall of the funnel part to the inner surface of the container body by the known ultrasonic welding method, high-frequency welding method or hot air. I went there. Furthermore, the packaging container which concerns on Examples 1-3 shown below was produced by setting an unwelded part in a different range for every packaging container.

Example 1
As the packaging container according to Example 1, the one shown in FIG. 3 having θ of 150 ° was used.

(Example 2)
As the packaging container according to Example 2, the one shown in FIG. 5 in which θ1 and θ2 were both 120 ° was used.

(Example 3)
As the packaging container according to Example 3, the one shown in FIG. 6 having θ of 240 ° was used.

  In the packaging container which concerns on Examples 1-3, it was evaluated whether the container main body and funnel parts could be easily isolate | separated by the method similar to what was shown in FIG. As a result, in any packaging container according to any of the examples, the container body and the funnel part could be easily separated. Furthermore, when the packaging container which concerns on Example 2 is crushed, the clearance gap between a container main body and a funnel part is formed in two places, and when the packaging container which concerns on Example 3 is crushed, a container main body and an unwelded part And a larger gap was formed. By these, in the packaging container which concerns on Example 2 and 3, the container main body and the funnel part were able to be isolate | separated more easily.

  INDUSTRIAL APPLICABILITY The present invention can be used as a packaging container for transferring powdery, granular, liquid fluid materials such as instant coffee and powdered milk and other toners, toner for copying machines and laser printers to other containers. .

DESCRIPTION OF SYMBOLS 10 Container body 20 Funnel part 21 Funnel 22 Side wall 23 Rib 24 Unwelded part 30 Packaging container

Claims (1)

A packaging container for packaging powdery or liquid contents and transferring the contents to another container,
A cylindrical container body having an open end ;
It is made of a material different from the material of the container body , and comprises a funnel part fitted into the open end of the container body,
The funnel part is
A funnel with a diameter decreasing toward the open end;
An annular side wall connected to the funnel and partially welded to the inner surface of the container body;
The packaging container in which the side wall and the container main body are not welded or pseudo welded in at least one continuous part of the whole circumference of the side wall of 1/4 or more and 3/4 or less.

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