JP2002308243A - Plastic container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic container whose volume can be reduced as much as possible after use and a plastic container which starts to crush flat uniformly from a barrel as a content liquid is discharged with a uniform dripping speed when it is used as a container for an infusion solution. SOLUTION: The plastic container comprises a cylindrical neck 1, a shoulder 2 with an approximately equal width to an outer diameter of the neck, a chest 5 connected from the neck and the shoulder, and the barrel 3 with an oval cross section. These structure members are connected via surfaces with minimum swells.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a plastic container whose volume can be reduced as much as possible after use. Further, the present invention relates to a plastic container which, when used as an infusion container, starts to be crushed uniformly and flatly from the body with the discharge of the content liquid and has a uniform dropping rate.

[0002]

2. Description of the Related Art Conventional plastic containers, such as plastic bottles, retain their shape after use,
It is difficult to reduce its volume except by mechanical destruction. In addition, even when a flexible plastic is used, it is difficult to reduce the volume of a container formed to be self-supporting. It has also been proposed that the torso be flattened (Japanese Utility Model No. 62-27959, Japanese Utility Model Sho 62)
-70525, Jitsuhei 1-12823, Jitsuhei 1-30192, Jitsuhei
No. 5-2183, No. 5-6992, No. 5-29714, No. 6
-114, Jitsuhei 7-7964, etc.) are not enough, and do not satisfy the demand for reducing the volume after use.

[0003]

Therefore, the present invention relates to a plastic container whose volume can be reduced as much as possible after use. In particular, the present invention relates to a self-standing plastic container that can be reduced in volume after use; Also, when used as an infusion container,
It is a plastic container that is crushed uniformly with the dropping and discharging of the content liquid and has a constant dropping rate, and is a self-supporting plastic container for infusion. After use; It relates to a plastic container that can be made.

[0004]

Means for Solving the Problems The present invention has been completed as a result of intensive studies in view of such conventional products,
(1) A cylindrical neck, a shoulder having a width substantially equal to the outer diameter of the neck, a back chest following the neck and the shoulder, and a torso having an oval cross section are connected by a surface which minimizes bulging. (2) Rectangle, oval hexagonal or oval bottom with the same or slightly wider width as the neck diameter and almost the same length as the shoulder, the long side of the bottom and the oval torso The plastic container according to the above (1), characterized in that the bulges are connected as much as possible, (3) the above (1), wherein the front and back surfaces of the trunk are surfaces. Plastic container,
(4) The plastic container according to the above (1) to (3), wherein the outer diameter of the side surface of the trunk is not more than 2.5 times the outer diameter of the neck.
(5) The plastic container according to the above (1) to (4), wherein the shoulder and or the bottom are molded into a thick wall,
(6) The above (1) to characterized in that the hanging device is stored in the bottom part
(5) The plastic container according to (5).

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. In the present invention, the width of the shoulder 2 of the container is made substantially equal to the outer diameter of the neck 1. In addition, the width of the bottom 4 is also substantially equal to the outer diameter of the neck. Then, the shoulder 3 and the bottom 4 are connected to the body 3 having an oval cross section with the shoulders 2 and the bottom 4 by surfaces (back chest 5, legs 6) which minimize bulges. The bottom 4 and the back chest 5 following the torso 3 are also inverted, and have the minimum capacity that maximizes the width of the shoulder 2 and the bottom 4.
The bulge of the back chest 5 may be flat or nearly flat at the center, and is connected to the neck 1 and the shoulder 2 by a gentle radius. The back chest 5 and the torso 3 are also connected by a gentle radius, but in the case where the torso front 11 and the torso back 12 are substantially flat, the back chest 5 and the torso front 11 and the center portion of the torso back 12 are formed. The connection may consist of a relatively small radius. The connection between the bottom 4 and the body 3 is also the same as above. The bottom 4 has a width approximately equal to or slightly larger than the diameter of the neck 1 and a length substantially equal to the length of the shoulder 2,
It has an oblong hexagonal or oblong surface, and is connected to the oblong body 3 by a surface that minimizes bulging. A suspending tool 7 may be provided at the center of the bottom 4, and the suspending tool 7 may be stored in the bottom 4 so as not to hinder the erecting of the container.

[0006]

As described above, in the container of the present invention, the body of the plastic container having an elliptical cross section, the shoulder and the bottom are connected by the surface where the bulge is suppressed as much as possible, so that the body starts to collapse from the body. Then, the bottom and the back chest following the torso are also inverted, so that the minimum capacity is obtained by maximizing the width of the shoulders and the bottom, so that the liquid can be drained smoothly. In addition, since the shoulder and the bottom are formed to have a width of about 以下 or less of the width of the container body, the container can be compactly compressed after use;

[0007]

[Brief description of the drawings]

FIG. 1 is a front view of the present plastic container.

FIG. 2 is a side view of the present plastic container.

FIG. 3 is a cross-sectional view of the plastic container-body portion AA.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Neck part 2 Shoulder part 3 Body part 4 Bottom part 5 Back chest part 6 Leg part 7 Hanging equipment 11 Body front 12 Body back 13 Body side

Claims (6)

[Claims] 1. A cylindrical neck, a shoulder having a width substantially equal to the outer diameter of the neck, a back chest following the neck and the shoulder, and a torso having an oval cross section are connected by a surface which minimizes bulging. Characterized plastic container. 2. A rectangular or oval or oval bottom having a width approximately equal to or slightly larger than the diameter of the neck and substantially equal to the shoulder, and a long side of the bottom and an oval trunk are bulged. 2. The plastic container according to claim 1, wherein the plastic container is connected with a surface as small as possible. 3. The plastic container according to claim 1, wherein the front and back surfaces of the body are planes. 4. The plastic container according to claim 1, wherein the outer diameter of the side surface of the body is less than twice the outer diameter of the neck. 5. The plastic container according to claim 1, wherein the shoulder and / or the bottom are formed thick. 6. The plastic container according to claim 1, wherein a hanging member is stored at the bottom.