JPH09124047A - Bottomed squeeze container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve unsteadiness at the bottom for a synthetic resin standing squeeze container that is bottomed while being sealed up at its top, and to prevent the container from becoming unsteady when placed on flat top of a desk by providing protuberances in three positions at the bottom of the container. SOLUTION: A synthetic resin bottomed tubelike flexible squeeze container 1 for food or medicines, or cosmetics such as shampoo, rinse or the like has a bottom 3 that is so flexible that can be squeezed with fingers while being so rigid that cannot be deformed when stuffed with contents, and is capable of standing by itself. Protrusive protuberances 4 are provided in three positions at the bottom 3. Each of the protuberances 4 is formed in a hemispherical shape in a height of 0.5-10mm. In the case of providing the protuberances in four or more positions, the protuberances must be provided at the bottom 3 in positions on lines intersecting a sealed part 2 approximately at a right angle. Thereby, the container can be prevented from becoming unsteady when placed on a flat board, and unsteadiness in standing can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottomed, tubular flexible extrusion made of a synthetic resin having excellent standing property, which is used for cosmetics such as shampoos and rinses, and liquids or powders such as foods and medicines. It concerns a container.

[0002]

2. Description of the Related Art As this type of technology, for example, a flexible package shown in FIG. 5 (Japanese Patent Application Laid-Open No. 7-132947) is known. This technique uses a synthetic resin film or the like, and after welding the cylindrical portion 11 and the bottom portion 13 to each other, a sealing portion 12 is provided while leaving a flow path 14 at the upper portion, and a bottomed portion having a content 15 is provided for a standing property. It is a container that has.

Recently, similar ones are shown in FIGS. 6 (a) and 6 (b).
The same applicant as the present invention has proposed a flexible extrusion container made of a synthetic resin having rigidity such that it does not largely deform even when the contents shown in FIG. This container is an extruded container having a cylindrical portion 11 and a bottom portion 13, a sealing portion 12 at the upper portion, and a rigid standing property that does not significantly deform even when the contents 15 are put therein.

[0004]

By the way, the above-mentioned FIG.
In the case of the flexible package shown in, even if there is some deformation on the bottom of the product, it is extremely flexible when the contents are put in, so it is greatly deformed, and standing property becomes a problem even when placed on a flat desk. There was nothing. However, in the case of a flexible extrusion container having a rigidity that does not significantly deform even if the contents are put in as shown in FIG. 6, the bottom portion is pulled by the seal portion, and in extreme terms, it is circular as shown in FIG. 6 (b). It became clear that it deformed into an arc shape and rattling occurred when it stood on a flat plate. The problem is to improve the poor sitting quality of the standing character.

[0005]

Means for Solving the Problems The extrusion container of the present invention has means for solving the above problems by providing three or more protrusions on the bottom.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the extrusion container of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show an embodiment of an extrusion container according to the present invention. The material of the container body 1 shown in FIG. 1 is made of synthetic resin such as polyethylene, polypropylene, vinyl chloride, polyester and elastomer. Is a cup-shaped container having a bottom portion 3 that has a flexibility such that it can be pushed out with a finger and a rigidity that does not significantly deform even when the contents are put therein, and is known, for example, by injection molding, hollow molding, vacuum molding, etc. Or the well-known tube manufacturing technology.

[0008] In the case of hollow molding, it is manufactured by a method such as molding a usual narrow-mouthed bottle-shaped container and cutting it in the middle, and the bottom portion 3 may be insert-molded, and the bottom portion 3 has a protrusion. The part 4 is provided so as to face three or more places.

A wall thickness of about 0.2 to 3.0 mm is suitable, and the wall thickness is adjusted by the hardness of the above materials. For example, soft materials such as soft polyethylene and elastomer are thicker. , Made of thin material such as polyester that is thin, large container that is thick and small container that is thin so that it can be extruded with fingers and does not deform significantly even when the contents are put in. Maintains moderate rigidity.

FIG. 2 shows an embodiment of the present invention, in which (a) and (b)
(C) is a front view, a side view, and a bottom view, respectively.
After filling the contents, heat or ultrasonically weld the upper end,
The sealing portion 2 is formed by sealing by a known method such as high-frequency welding, and the bottom portion 3 has a protruding projection 4 facing the bottom portion 3 at a position substantially orthogonal to the sealing portion 2. It is provided in three places.

The protrusion 4 has a hemispherical shape with a height of about 0.5 to 10 mm, and it is necessary to make it sufficiently higher than the deformation amount of the container. It tends to be high in some cases and low in small vessels.

Further, as shown in FIG. 3, the projection 4 may be larger and elliptical in cross section, but it is preferable that the ground contact surface is formed into a gentle curved surface contacting with as small an area as possible. The cross-sectional shape and size of the protrusion can be freely selected.

It is also possible to partially form a dent on the bottom and to ground at three or more places. The number of protrusions 4 is preferably three cylinders, but four or more. It does not matter if there is.

Further, in the above embodiment, the seal portion 2
Protrusions 4 are provided at three locations on the bottom at a position substantially orthogonal to, but this configuration is preferable, but in the case where there are three protrusions 4, the position is substantially orthogonal to the seal portion 2. This is not particularly limited.

However, when there are four or more protrusions 4, they are provided so as to face the bottom portion at a position substantially orthogonal to the seal portion 2.

Further, as shown in FIG. 4, an unwelded channel 5 may be provided at one of the corners of the seal portion 2.

In the extrusion container of the present invention, as shown in FIG.
Although only an example of a circular bottom shape is shown in FIG. 3, it can be applied to any bottom shape such as an ellipse or a quadrangle, and in FIG. 4, the flow path 5 is diagonally positioned at a corner position. However, the position and direction of the flow path 5 can be freely selected.

In the extrusion container of the present invention, after the contents are filled in the state shown in FIG. 1 where the surface is printed, etc., it is put on the market in a sealed state as shown in FIGS. 2 (a), the portion indicated by the dotted line in FIG. 4 is cut with scissors or the like and lightly pushed out with a finger for use.

The flow path shown in FIG. 4 has a function of pushing out the content with a finger, but self-closing when the content is released. It is effective when used repeatedly, and has the effect of preventing alteration of the contents due to drying, moisture absorption, oxidation, propagation of various bacteria, etc.

[0020]

EFFECT OF THE INVENTION The extruded container of the present invention has an excellent standing property by improving the unsatisfactory seating of the container, which does not cause rattling even when placed on a flat desk. Therefore, the quality can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of the present invention before an upper seal.

FIG. 2 is a front view showing an embodiment of the present invention, and FIG.
Side view, (c) bottom view.

FIG. 3 is a bottom view showing another embodiment of the present invention.

FIG. 4 is a front view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing a first conventional example.

6A is a front view and FIG. 6B is a side view showing a second conventional example.

[Explanation of symbols]

 1 Container body 2 Seal part 3 Bottom part 4 Projection part 5 Flow path

Claims (3)

[Claims] 1. An extruding container made of synthetic resin and having a cylindrical shape with a bottom and a sealed top, which has flexibility such that it can be extruded with a finger and has rigidity that does not significantly deform even when the contents are put therein. 2. A container characterized by having three protrusions on the bottom. 2. The container according to claim 1, wherein four or more protrusions are provided on the bottom portion of the seal portion at a position substantially orthogonal to the seal portion. 3. The extrusion container according to claim 1, wherein an unsealed flow path is provided in the sealing portion.