JP2021054481A - Packaging container - Google Patents

Abstract

To make it easier to rub the contents.SOLUTION: A packaging container 1 comprises: a paper-made cylindrical upper frame body 12 which opens upward; a paper-made bottomed cylindrical lower frame body 13 which is provided at a gap between itself and the upper frame body 12; and a cylindrical flexible shank 14 which is fixed to the upper frame body 12 and the lower frame body 13 respectively, blocks the gap between the upper frame body 12 and the lower frame body 13, and has a strength smaller than that of the upper frame body 12 and the lower frame body 13. It is possible that the upper frame body 12 and the lower frame body 13 are not deformed while deforming the cylindrical flexible shank 14.SELECTED DRAWING: Figure 1

Description

The present invention relates to a packaging container, particularly a packaging container suitable for kneading or crushing the contents.

Yogurt, frozen desserts, ice cream, jelly, etc. may be filled in plastic pouch containers or tube containers for sale. Patent Document 1 discloses a plastic packaging container filled with yogurt containing fruit meat, and Patent Document 2 discloses a plastic packaging container filled with ice confectionery (ice cream). Since the disclosed pouch containers and tube containers are made of soft plastic sheets, the contents inside the containers can be pushed out by grasping and crushing them by hand.

Japanese Unexamined Patent Publication No. 2006-199350 Japanese Unexamined Patent Publication No. 2006-137433

Since the entire container of the packaging container described in Patent Documents 1 and 2 is formed of a soft plastic sheet, when the container is grasped by hand and crushed, the crushed container form is basically maintained as it is. Not suitable for rubbing or crushing (crushing) the contents multiple times.

An object of the present invention is to provide a packaging container suitable for kneading or crushing the contents in a container.

The packaging container according to the present invention has a tubular upper frame having an upper opening closed by a lid material or a top, a bottomed tubular lower frame provided at intervals from the upper frame, and an upper frame. And a tubular flexible body that is fixed to each of the lower frame and closes the gap between the upper frame and the lower frame, and has a lower strength than the upper frame and the lower frame. is there. The tubular shape is an inverted conical trapezoid with a slightly smaller diameter at the bottom than the top, a conical trapezoid with a slightly larger diameter at the bottom than the top, a cylinder with a constant diameter in the vertical direction, and a square cylinder with a polygonal cross section. Includes any other shape.

The upper opening of the tubular upper frame is closed by a lid material, a top surface portion having a take-out hole for the contents closed by a seal, a top surface portion having a spout closed by a cap, and the like. By peeling off the lid material, peeling off the seal, removing the cap, etc., the contents inside the container can be taken out through the opening or the take-out hole.

It suffices if there is a difference in strength between the tubular upper frame body and the tubular lower frame body and the tubular flexible body portion. However, if the difference in strength is too small, it becomes difficult to maintain the shapes of the tubular upper frame and the tubular lower frame (the flexible body naturally deforms, but the upper and lower frames also deform at the same time. Therefore, the shapes of the upper frame and the lower frame can be maintained (retained) to some extent, in other words, the strength difference (in other words, only the flexible body can be deformed). Rigidity difference) is preferably between the upper and lower frames and the flexible body.

The desired strength difference can be caused by different materials or configurations (materials, layer configurations, etc.) between the upper and lower frames and the flexible body. In addition to or changing the thickness of the upper frame body and the lower frame body and the flexible body portion, a desired difference in strength may be produced. That is, the upper frame body, the lower frame body, and the flexible body portion may be made of the same material, and in this case, a desired difference in strength can be generated by making the thickness different. Considering the use as a packaging material for packaging things, the materials of the upper frame and the lower frame include, for example, resins such as polystyrene, polyethylene, polyethylene terephthalate, polypropylene and nylon, and metals such as paper and aluminum foil. Laminates can be mentioned, and paper-made ones (which does not mean that they do not contain any synthetic resin, and even if they contain synthetic resin, the heaviest paper) can be adopted. Examples of the material of the flexible body include polystyrene, polyethylene, polyethylene terephthalate, resins such as polypropylene and nylon, metals such as aluminum foil, and laminates thereof. Paper can be the heaviest for the entire packaging, in which case the packaging is divided into paper containers and packaging.

Since the strength of the tubular flexible body is smaller than the strength of the tubular upper frame and the tubular lower frame, the cylinder is not deformed or the degree of deformation is kept small. The flexible body can be deformed. By grasping (grasping) the tubular flexible body by hand, the tubular flexible body is pushed inward and the contents are crushed.

According to the present invention, it is possible to deform the tubular flexible body while not deforming the upper frame and the lower frame, so that the tubular shape is pushed inward by being held by hand and deformed. The flexible body returns to its original tubular shape when the hand is loosened (stops gripping), or even if it does not completely return to its original tubular shape, the tubular upper and lower frames do not deform. Therefore, the tubular flexible body bulges somewhat to reach a tubular shape. Therefore, it is suitable for kneading the contents, crushing the contents multiple times to make them finer or soft, and stirring the contents sufficiently.

Considering that the tubular flexible body is squeezed by hand, it is preferable that the tubular flexible body can be easily deformed by the grip strength of a person, especially an infant or an elderly person. In one embodiment, the strength of the tubular flexible body is 50 N or less. With this level of strength, the tubular flexible body is deformed even when pressed with one finger.

In one embodiment, the gap between the tubular upper frame body and the tubular lower frame body is closed by the tubular middle frame body connected to each of the upper frame body and the lower frame body via an easy cutting line. There is. The tubular flexible body can be protected during the transportation of the packaging container. When the middle frame is cut along the easy excision line, a tubular flexible body appears between the upper frame and the lower frame.

Preferably, the upper end of the tubular flexible body is on the upper edge of the tubular upper frame, and the lower end of the tubular flexible body is on the lower edge of the tubular lower frame. ， Each is fixed. When the tubular flexible body is grasped and crushed by hand, there is a gap between the tubular flexible body and the upper frame and the lower frame, and only the tubular flexible body is deformed. It is possible to prevent the upper frame and the lower frame from being deformed by being pulled by the deformable tubular flexible body.

The present invention can also be defined as follows. The packaging container according to the second invention has a bottomed tubular body having an upper opening closed by a lid material or a top, and two easy-to-use containers formed on the body at intervals at the top and bottom and extending in the circumferential direction. The body is provided on the inner surface side of the excision line and the body portion, and has a size covering the range of the body portion sandwiched by the easy excision line, and above and below the range sandwiched by the easy excision line. It is equipped with a tubular flexible film that is fixed to the part and has a lower strength than the body part.

When the middle part of the body is cut off along the two easy-cut lines, a tubular flexible film provided on the inner surface side of the body appears. The body portion is separated into an upper portion and a lower portion with a tubular flexible membrane interposed therebetween. Since the strength of the tubular flexible film appearing in the middle part of the body is low, the tubular flexible film can be deformed by grasping it with a hand, and the contents can be rubbed or crushed.

The tubular body portion may have a smaller diameter as a whole from the upper part to the lower part, or may have the same diameter as a whole. If the tubular body is formed so that the diameter becomes smaller as a whole from the upper part to the lower part, the lower body of the tubular flexible film is formed inside the upper part of the tubular flexible film. Since it can be stored, the volume of the packaging container can be reduced.

It is a perspective view of a packaging container. It is a partially broken front view along the line II-II of FIG. It is a development view of the body part which constitutes a packaging container. FIG. 5 is an enlarged cross-sectional view taken along the line IV-IV of FIG. It is a perspective view which shows the state of grasping a flexible body part by hand. It is a perspective view of the packaging container of a modified example. It is a perspective view of the packaging container of another Example. It is a perspective view of the packaging container of still another Example.

1 to 5 show a packaging container (paper cup) according to an embodiment of the present invention. FIG. 1 is a perspective view of the packaging container, FIG. 2 is a partially broken front view of the packaging container along the lines II-II of FIG. 1, and FIG. 3 is a development view (blank) showing the body portion constituting the packaging container from the outside. (Fig.), Fig. 4 shows an enlarged cross-sectional view of the body portion along the IV-IV line of FIG. FIG. 5 shows a perspective view of the packaging container when the body portion (cylindrical flexible film, tubular weak strength portion) of the packaging container is grasped.

With reference to FIGS. 1 and 2, in the packaging container 1, the upper opening of the container composed of the body portion 10 and the bottom portion 20 is closed by the lid material 30. The body 10 has a cylindrical shape (inverted truncated cone shape) with a large upper diameter and a smaller diameter toward the bottom, and the upper edge peripheral end of the opening body 10 is wound outward so as to be rounded. The curl portion 11 is formed. The peripheral edge of the upper edge of the body 10 may be simply folded to form a flange that extends slightly outward. The upper opening of the body portion 10 is closed by adhering the lid member 30 to the annular upper surface formed by the curl portion 11. The bottom portion 20 is circular, and its peripheral end is bent downward (bent portion 21). The bottom portion 20 fits snugly into the lower end opening of the body portion 10, the lower edge peripheral end portion of the body portion 10 is folded inward (folded portion 15), and the folded portion 15 sandwiches the bent portion 21 of the bottom portion 20. .. Both the inner and outer surfaces of the bent portion 21 of the bottom portion 20 and the inner surface of the folded portion 15 at the lower end portion of the body portion 10 sandwiching the bent portion 21 are adhered or welded.

With reference to FIG. 1, the lid material 30 has, for example, a laminated structure of an upper layer sheet 31 and a lower layer sheet 32, and an easy-release agent (not shown) is provided between these layers (may be only a part). is there. By turning over the upper layer sheet 31, the lower layer sheet 32 in which the content take-out port 33 is formed appears. The contents can be taken out (poured out, sucked) from the take-out port 33.

The body 10 constituting the packaging container 1 has a cylindrical flexible body (flexible film) 14 and an outer surface of the flexible body 14 at the upper and lower parts of the flexible body 14, respectively. It is composed of a ring-shaped (short cylindrical) upper frame body 12 and a lower frame body 13 stacked on top of each other.

The body 10 of the packaging container 1 is made from the arc-shaped blank shown in FIG. With reference to FIG. 4, the blank of the body portion 10 is made of an arc-shaped film 14a forming the flexible body portion 14 and an arc-shaped paper forming the upper frame body 12 superimposed on the upper outer surface of the arc-shaped film 14a. A sheet 12a and an arc-shaped paper sheet 13a forming a lower frame body 13 stacked on the lower outer surface of the arc-shaped film 14a are included. An adhesive portion 19 is provided on one side of the blank, and the side portions of the blank are adhered to each other to form a cylindrical shape using the adhesive portion 19, and as described above, the upper edge peripheral end and the lower edge peripheral end are formed. A cylindrical body 10 is made by folding back.

The upper end portion and the lower end portion of the arcuate film 14a may be adhered to the upper end portion of the paper sheet 12a forming the upper frame body 12 and the lower end portion of the paper sheet 13a forming the lower frame body 13. However, as shown in FIGS. 1 and 2, in the completed packaging container 1, the upper end portion of the flexible body portion 14 is integrated (fixed) with the upper frame body 12 by being crimped by the curl portion 11. Since the lower end of the flexible body 14 is integrated (fixed) with the lower frame 13 by being crimped by the folded-back portion 15, it is not always necessary to bond the arcuate film 14a and the paper sheets 12a and 13a. Absent.

As described above, both the upper frame body 12 and the lower frame body 13 are made of paper (paper sheet), and for example, those having a basis weight of ^{260 g / m 2 can be used.} The front surface and / or back surface of the upper frame body 12 and the lower frame body 13 may be coated or laminated with a synthetic resin according to the functions (light-shielding property, oil resistance, water resistance, etc.) required for the packaging container 1.

For the flexible body 14, for example, a laminate composed of a resin film or a metal film is used. As an example, 40 μm thick polyethylene (PE) / 12 μm thick polyethylene terephthalate (PET) / from the inside to the outside. Adhesive / 7 μm thick aluminum (AL) / 15 μm thick ethylene / methacrylic acid copolymer (EMAA) laminated is used. The layer structure of the flexible body portion 14 is also appropriately selected according to the function required for the packaging container 1, and the thickness thereof is also appropriately adjusted according to the contents and the like.

The flexible body 14 is thin (several tens of μm as a whole as described above) and has flexibility. On the other hand, the upper frame body 12 and the lower frame body 13 are made of thick paper material, and are heavier and stronger (rigidity) than the flexible body portion 14, and are generally not flexible (of course). It may have some flexibility). As an example, a paper material having a thickness of 280 μm is used for the upper frame body 12 and the lower frame body 13. The above-mentioned laminate having a thickness of 74 μm is adopted for the flexible body portion 14.

When the strength (pushing strength) of the flexible body 14 of the prototype packaging container 1 was measured, the width of the flexible body 14 (distance from the lower end of the upper frame 12 to the upper end of the lower frame 13) was measured. Although it fluctuated accordingly, the flexible body 14 could be completely crushed if there was a strength (pushing strength) of about 0.5N to 4.0N. The indentation strength can be measured using an indentation tester (for example, a Tencilon universal material tester manufactured by A & D Co., Ltd.). The packaging container 1 is arranged sideways, the packaging container 1 is fixed using a jig, and a rod-shaped indenter having a diameter of 10 mm is pressed against the flexible body 14 at a speed of 50 mm / min, and the upper part of the packaging container 1 is pressed. Push in to half the diameter of the opening. The force applied to the indenter (resistance force) is measured by the load cell, and this can be treated as the strength (pushing strength).

The strength of about 20 N was measured for the upper frame body 12 and the lower frame body 13 of the prototype packaging container 1, which was much higher than the strength of the flexible body portion 14. However, even if the strength is about 20N, it can be easily crushed by human hands. Since the strength of the flexible body 14 is smaller than the strength of the upper frame 12 and the lower frame 13, if the flexible body 14 is grasped by hand, the upper frame 12 and the lower frame 13 are not deformed. It is possible to deform only the flexible body 14.

With reference to FIG. 2, the bottom portion 20 can also be composed of the paper material 22 and the flexible film 23. The paper material 22 and the flexible film 23 constituting the bottom portion 20 may be made of the same material as the paper material constituting the upper frame body 12, the lower frame body 13, and the film constituting the flexible body portion 14, or may be different. The material may be used.

FIG. 5 shows a state in which the flexible body portion 14 of the packaging container 1 is grasped by hand.

As described above, the flexible body portion 14 of the packaging container 1 has low strength as described above. Therefore, when the flexible body portion 14 is grasped by hand, the flexible body portion 14 is deformed inward.

The strength of the upper frame body 12 and the lower frame body 13 is larger than the strength of the flexible body portion 14, and the flexible body portion 14 has upper and lower end portions (curl portion 11 and folded portion 15). Except for this, it is not adhered to the upper frame body 12 and the lower frame body 13. Therefore, even if the flexible body portion 14 is grasped by hand and deformed, the upper frame body 12 and the lower frame body 13 are not deformed or almost not deformed, and maintain a ring shape (cylindrical shape).

When the hand holding the flexible body 14 is loosened (stopping the grip), the upper frame 12 and the lower frame 13 to which the upper and lower ends of the flexible body 14 are fixed maintain a cylindrical shape. As such, the deformed flexible body 14 returns some bulge, if not completely back to its original cylindrical shape.

By grasping the flexible body 14 whose bulge has returned by hand again, the flexible body 14 is repeatedly deformed (kneaded) (tightening or loosening the flexible body 14 by hand). Can be repeated). The contents (for example, food) can be rubbed or crushed in the packaging container 1 without getting the hands dirty. If the packaging container 1 is filled with jelly, frozen dessert, ice cream, or other relatively viscous contents, the contents are smoothly discharged from the outlet 33 by grasping the flexible body 14. To.

Needless to say, the distance between the upper frame body 12 and the lower frame body 13 can be reduced (the packaging container 1 can be crushed in the height direction). By crushing the packaging container 1 in the height direction, the contents can be discharged almost completely, and the lower frame body 13 can be stored inside the upper frame body 12, so that the volume of dust can be reduced. be able to.

FIG. 6 shows a modified packaging container 1A. It differs from the packaging container 1 shown in FIGS. 1 to 5 in that a cylindrical middle frame body 18 is provided between the upper frame body 12 and the lower frame body 13.

Easy-cut lines 16 and 17 extending in parallel to the lower edge of the upper frame body 12 and the upper edge of the lower frame body 13 are formed at intervals at the top and bottom, and the easy-cut lines 16 and 17 are formed. The middle frame body 18 is integrally connected to each of the upper frame body 12 and the lower frame body 13 via the upper frame body 12. The easy-cut lines 16 and 17 are formed by a plurality of intermittently formed cut lines, perforations, half cuts, front and back half cuts, and the like.

The middle frame body 18 and the easy excision lines 16 and 17 go around the body 10 (it is not necessary to go around completely). When the middle frame body 18 is cut along the easy-cut lines 16 and 17, a flexible body portion 14 located inside the cut middle frame body 18 appears (Fig. 1). The middle frame body 18 is generally made of the same paper material as the upper frame body 12 and the lower frame body 13.

Since the flexible body 14 is protected by the inner frame 18, for example, it is effectively prevented from directly impacting the flexible body 14 during transportation of the packaging container 1A, and the packaging container 1A is protected. can do.

FIG. 7 shows a perspective view of the packaging container 1B of another embodiment. The above-mentioned packaging container 1 has a body portion 10 having the same diameter from top to bottom, a top portion 40 integrally provided on the upper frame body 12, and a spout 51 attached to the top portion 40. The point is different. The cap 52 is screwed to the spout 51.

Also in the packaging container 1B, the contents can be rubbed or crushed by grasping the flexible body portion 14 by hand, and can be extruded from the spout 51.

As shown in the packaging container 1C of another embodiment of FIG. 8, an opening 54 may be formed in the top 40 and the opening 54 may be closed by the sealing member 53 instead of the spout 51 and the cap 52.

In the above-mentioned examples, an example in which the upper and lower frames 12 and 13 and the flexible body 14 are made of different materials having a relatively large difference in strength has been described. It is also possible to use a combination of materials having a smaller difference in strength. Further, by making the upper and lower frames 12 and 13 and the flexible body 14 both paper materials or synthetic resin materials and having different thicknesses, between the upper and lower frames 12 and 13 and the flexible body 14 May cause a difference in strength. Assuming the strength that the flexible body portion 14 can be crushed by a human hand, if the strength is 50 N or less, the flexible body portion 14 can be easily deformed by pushing it with a finger.

In the above-described embodiment, the inverted truncated cone shape and the cylindrical truncated cone have been described, but the present invention is not limited to this, and a truncated cone shape having a diameter larger than that of the upper portion may be used, and the container is not limited to the cylindrical truncated cone shape and the truncated cone shape. It may have a polygonal cylinder shape, for example, a cross section of a square, a hexagon, an octagon, or the like.

1,1A, 1B, 1C packaging container
10 body
12 Upper frame
13 Lower frame
14 Flexible body
16, 17 I Ching line
18 middle frame
40 heaven

Claims (7)

Cylindrical upper frame with top opening closed by lid or top,
A bottomed tubular lower frame body provided at intervals from the upper frame body, and an upper frame fixed to each of the upper frame body and the lower frame body to close the gap between the upper frame body and the lower frame body. It has a tubular flexible body that is less strong than the body and lower frame,
Packaging container. The strength of the tubular flexible body is 50 N or less.
The packaging container according to claim 1. The upper end of the tubular flexible body is fixed to the upper edge of the upper frame, and the lower end of the tubular flexible body is fixed to the lower edge of the lower frame.
The packaging container according to claim 1 or 2. The tubular upper frame and the tubular lower frame are made of paper.
The packaging container according to any one of claims 1 to 3. Bottomed tubular body with top opening closed by lid or top,
Two easy-cut lines that are formed on the body at intervals at the top and bottom and extend in the circumferential direction, and a size that is provided on the inner surface side of the body and covers the range of the body sandwiched by the easy-cut lines. It is provided with a tubular flexible film having a strength smaller than that of the body, which is fixed to the body above and below the range sandwiched by the I Ching line.
Packaging container. The strength of the tubular flexible film is 50 N or less.
The packaging container according to claim 5. The body is made of paper,
The packaging container according to claim 5 or 6.

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