JP2015202871A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container that allows a user to easily push out a proper amount of content each time to the last content.SOLUTION: A packaging container 100 is constituted of a container main body 1 and a cap 2. The container main body is constituted of a truncated cone-shaped trunk upper part 11 in the side where a cap is provided and a horizontal pleat-like bellows-shaped trunk lower part 12 formed to get narrower wholly from a lower end of the trunk upper part toward a lower side. A bottom part 12a of a lower end of the lower part of the trunk is formed to be thicker than the other part of the trunk lower part. Further the cap is formed into such a shape that the packaging container is stably inverted when invertedly placed, with the cap turned upside down.

Description

  The present invention relates to a packaging container. In particular, the present invention relates to a packaging container suitable for storing contents having relatively high viscosity.

  For pasty or non-food foods with relatively high viscosity, such as mayonnaise, ketchup, kneading, toothpaste, etc., close the blow-molded bottle or the lower end part in a flat shape. A flexible container, such as a tube container, that squeezes out the contents by pushing the container is used.

  The relatively high-viscosity contents as described above are used after being squeezed out of the flexible container. However, when the contents become less, they cannot be completely drawn out. In particular, it was almost impossible to squeeze out the contents remaining in the mouth and neck where the opening was provided.

  In view of this, a container has been developed that can easily extrude all contents and can extrude the contents one by one.

  This container is formed by plastic blow molding, and an annular flange is formed in the middle of the container, and a bellows shape is formed by an annular pleat provided with a half body that is pressed and deformed with this flange as a boundary. (Patent Document 1).

  However, in the container described above, the flange is formed thick, but the bottom is not particularly thick. For this reason, there is a problem that it is difficult to push when the bottom portion is pressed to push out the contents to deform the container.

  Known documents are shown below.

Japanese Utility Model Publication No.59-141052

  This invention is made | formed in view of the above situations, and makes it a subject to provide the packaging container which can extrude the contents appropriately by a suitable quantity without remaining.

This invention is made in view of the subject which concerns, The invention of Claim 1 is a packaging container which consists of a container main body and a cap,
An upper part of the truncated cone-shaped body part on the side where the cap is provided, and a lateral bellows-shaped body part formed so as to become thinner overall from the lower end of the upper part of the body part. The packaging container is characterized in that the bottom portion of the lower portion of the trunk portion is made thicker than other portions of the lower portion of the trunk portion.

  The invention according to claim 2 of the present invention is characterized in that the shape of the cap is formed so that the packaging container is stably inverted when the cap is placed with the cap lying down. The packaging container according to claim 1.

  The packaging container of the present invention can easily extrude the contents in appropriate amounts without leaving any residue. Moreover, when the contents are pushed out to the end, the container is reduced in volume at that time and is easy to discard.

It is explanatory drawing which showed typically an example of the packaging container of this invention with the front. It is explanatory drawing which showed the state which inverted the example of the packaging container of this invention typically on the front. It is explanatory drawing which showed typically the state which pushed and inverted the trunk | drum lower part in the trunk | drum upper part in an example of the packaging container of this invention in the front.

Hereinafter, embodiments for carrying out the present invention will be described.
FIG. 1 is an explanatory view schematically showing an example of the packaging container of the present invention on the front, and FIG. 2 is an explanatory view schematically showing the inverted state of an example of the packaging container of the present invention on the front. FIG. 3 is an explanatory view schematically showing a state in which the lower portion of the trunk portion is pushed into the upper portion of the trunk portion and inverted in an example of the packaging container of the present invention.

  As shown in FIG. 1, the packaging container 100 of the present example includes a container main body 1 and a cap 2, and a cylindrical neck that forms an opening is provided at the upper end of the container main body 1. The cap 2 is detachably provided.

  The body upper part 11 on the cap 2 side of the container body 1 has a truncated cone shape. And the trunk | drum lower part 12 which continues to the lower end of the trunk | drum upper part 11 becomes the shape of a bellows-like bellows, and it is formed so that the whole trunk | drum lower part 12 may become thin toward the downward direction.

  At the lower end of the body lower part 12, a bottom part 12 a is made thicker than other parts of the body lower part 12. A fan-shaped label 3 is attached to the outer surface of the upper portion 11 of the body 100 of the packaging container 100.

  Thus, since the trunk | drum lower part 12 becomes the shape of a bellows-like bellows, and the trunk | drum lower part 12 whole is thinning below, it can be pushed from the bottom and can fold a bellows easily.

  Moreover, since the whole trunk | drum is not bellows-shaped, but the trunk | drum upper part 11 is a truncated cone shape, the label 3 can be stuck on the outer surface of the trunk | drum upper part 11. FIG. In this example, the label is provided only on the front portion, but it can also be provided using a fan-shaped label so as to cover the entire circumference of the outer surface of the truncated cone-shaped upper portion 11.

  The packaging container 100 can be placed with the cap 2 up when not in use, but can be placed upside down with the cap 2 in place as shown in FIG. In this way, even if the contents are high in viscosity, while the contents are kept upside down, the contents can be gathered toward the cap 2 that is down, and the contents can be removed. Can extrude the contents.

  Further, when the content is further reduced, as shown in FIG. 3, the trunk lower part 12 can be pushed into the trunk upper part 11 by pushing with the finger 4 or the like. In this pushed-in state, there is almost no space between the upper part 11 and the lower part 12, so that the contents can be pushed out without remaining.

  And since the bottom part 12a is made thicker than the other part of the trunk | drum lower part 12 at the lower end of the trunk | drum lower part 12, when pushing the bottom part 12a with a finger etc. and taking out the contents, a bottom part is dented. The force is not transmitted unevenly, it is easy to push, and the bellows is easy to expand and contract.

  In addition, the thickness of the bellows-shaped trunk | drum lower part 12 formed so that it may become thin toward the downward direction is thinner than the trunk | drum-shaped trunk | drum upper part 11. FIG. Thus, the bellows can be expanded and contracted with a small force.

  The cap 2 has a flat top and can be placed upside down with the cap 2 in a state where the packaging container 100 is not used. Note that the top is not necessarily flat, and a plurality of protrusions or annular protrusions may be provided above the top so that the protrusions can be grounded and inverted. In short, any shape that can be stably placed upside down with the cap 2 in place is acceptable.

  When the bottom 12a is pushed and the contents are taken out, the outside air does not enter the packaging container, oxidation deterioration and the like can be prevented, and the quality of the contents can be maintained.

  As the contents are reduced, the body lower portion 12 can be inverted to reduce the volume of the container. Further, since the volume reduction has been completed when the contents are exhausted, the volume-reduced packaging container can be discarded as it is.

  In order to mold the packaging container 100, a molding method such as direct blow molding or biaxial stretch blow molding is possible. In the case of direct blow molding, any resin can be used as long as it is a thermoplastic resin, but the packaging container 100 may be a container having a multilayer structure in which low density polyethylene, high density polyethylene, and polypropylene are laminated in this order. preferable. Further, an ethylene-vinyl alcohol copolymer may be laminated on the inside or outside of the high-density polyethylene.

  In the case of biaxial stretch blow molding, the resin used is preferably polyethylene terephthalate. When barrier properties are required, it can be formed into a multilayer by sandwiching an ethylene vinyl alcohol copolymer or a resin having barrier properties such as MXD6-nylon in the intermediate layer.

  As described above, the packaging container of the present invention can easily extrude the contents in appropriate amounts without leaving them. For this reason, it can be suitably used as a high-volume packaging container for foods such as kneaded radish, wasabi, or honey, or for industrial materials such as grease or adhesives.

DESCRIPTION OF SYMBOLS 100 ... Packaging container 1 ... Container main body 11 ... trunk | drum upper part 12 ... trunk | drum lower part 12a ... bottom part 2 ... cap 3 ... label 4 ... finger

Claims (2)

A packaging container comprising a container body and a cap,
An upper part of the truncated cone-shaped body part on the side where the cap is provided, and a lateral bellows-shaped body part formed so as to become thinner overall from the lower end of the upper part of the body part. A packaging container comprising: a lower portion, wherein a bottom portion at a lower end of the lower portion of the trunk portion is made thicker than other portions of the lower portion of the trunk portion.   2. The packaging container according to claim 1, wherein the shape of the cap is formed so that the container can be stably inverted when the packaging container is inverted so that the cap is placed downward. .

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