JPH0826305A - Tube container - Google Patents

Abstract

PURPOSE:To completely squeeze out a content of a tube container, esp. a content remaining in the vicinity of a shoulder part, by a method wherein in a chamfered part formed at the intersection of the shoulder part and an upper end of a body part, a ratio of a radius to an outer diameter of a container body is determined to be large. CONSTITUTION:A container body 1 consisting of a mouth-neck part 2, a shoulder part 3, and a body part 4 is integrally molded by blow molding or the like. Concretely, all of the mouth-neck part 2, the shoulder part 3, and the body part 4 has a single-layer construction of a synthetic resin, such as polyethylene, or a multi-layer construction of polyethylene, a gas barrier resin, and the like. On the other hand, in a chamfered part 5 formed at the intersection of the shoulder part 3 and the upper end of the body part 4, a ratio of a radius R1 to an outer diameter PHI1 of the container body is determined to be large. The radius R1 of the chamfered part 5 is determined to meet a requirement of [radius (R1) of the chamfered part/diameter (PHI1) of the tube container]X100>20%. In this manner, a content of the container body 1, esp. a content remaining in the vicinity of the shoulder part 3, can be completely squeezed out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube container, and more particularly to a tube container in which the shoulder portion of the tube container is easily squeezed and the amount of contents remaining is small.

[0002]

2. Description of the Related Art As a conventional technique, there is one shown in FIGS. In FIG. 7, reference numeral 50 denotes a container main body, and the container main body 50 is usually formed by blow molding so that the mouth and neck, the shoulder, and the body are integrally manufactured, or the mouth and neck and the shoulder are separately molded. And the body is welded to the end of the molded body. In such a tube container, a chamfered portion 54 is usually formed at the intersection of the shoulder 53 of the container body 50 and the upper end of the body 51. Conventionally, when there is no content in the body 51, the mouth and neck 5
2, the mouth / neck portion 52, the shoulder portion 53 or the chamfered portion 54 was strongly squeezed with fingers in order to squeeze out the contents remaining in the shoulder portion 53.

[0003]

However, the conventional
The radius of the chamfered portion 54 is relative to the outer diameter φ0 of the container body 50.
Remarkably small (40 mm in FIGS. 7 and 8)
φ In case of 0 tube container, radius R0 of chamfer is 3m
m), after squeezing out the contents in the body portion 50, the chamfered portion 5
A triangular shoulder portion 53 having 4 as its apex is formed (FIG. 9).
reference). Then, the chamfered portion 54 is squeezed with a finger and remains.
When squeezing out the contents, the shoulders 53 of this triangle are rigid.
It was very difficult to do so. So in many cases
The contents of the mouth and neck 52 and the shoulder 53 are
The contents were wasted because it was discarded in the state.

The present invention has been made in view of such conventional problems, and does not leave the contents in the mouth and neck and the shoulder near the chamfered portion of the container body, but the contents in the tube container. It is an object of the present invention to provide a tube container that can be squeezed out almost completely and has a good squeezing condition.

[0005]

In order to solve this problem, the present invention relates to a tube container in which the ratio of the radius of the chamfered portion formed at the intersection of the shoulder portion and the body portion to the outer diameter of the container body is set. It is a tube container characterized by being enlarged.

[0006]

The operation of the present invention having the above construction will be described. The tube container according to the present invention has a large ratio of the radius of the chamfered portion to the outer diameter of the container body, as compared with the conventional tube container. The rigidity is low, and even women and children can easily squeeze the shoulders and squeeze out the contents. Therefore, the contents remaining in the mouth and neck and the shoulder can be squeezed out almost completely.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.
First, a synthetic resin tube container will be described.
Is a container body, and the container body 1 has a mouth / neck portion 2, a shoulder portion 3 and a body portion 4 integrally formed by blow molding or the like. Specifically, as shown in FIG. 4, the mouth / neck portion 2 and the shoulder portion 3
All of the body 4 is composed of a single layer of synthetic resin such as polyethylene or polypropylene, or a multilayer of polyethylene and a gas barrier resin such as saponified ethylene-vinyl acetate copolymer. And the feature of this invention is that
The radius R1 of the chamfered portion 5 formed at the intersection of the shoulder portion 3 of the container body 1 and the upper end of the body portion 4 is large. As an example, the chamfered portion 5 in the case of a tube container of 35 mmφ1
The radius R1 is 9 mm, and the radius R1 of the chamfered portion is 11 mm in the case of a tube container having a diameter of 40 mmφ1. By the way,
In the conventional tube container, the radius R0 of the chamfered part is 2.5 mm and the diameter is 4 in the case of the tube container of 35 mmφ0.
The radius R0 of the chamfered portion in the case of a tube container of 0 mmφ0 is remarkably small, about 3.0 mm. Expressing this in percentage, in the tube container according to the present invention, [radius of chamfer (R1) / diameter of tube container (φ1)] × 100
It is> 20%, and the inventor has found that when this formula is satisfied, the content can be squeezed out almost completely without leaving the content in the tube container, particularly in the vicinity of the shoulder 3. . Incidentally, in the conventional tube container, [radius of chamfered portion (R0) / diameter of tube container (φ0)] × 100 = 7 to 8%.

FIG. 6 is a partially cutaway sectional view showing another embodiment of the synthetic resin tube container according to the present invention. In this embodiment, the mouth / neck portion and the shoulder portion form a molded body 6 by integral molding, and a lower end upper edge 7 of the molded body 6 and an upper end 9 of a body portion 8 are formed.
3 shows an example in which is welded. The ratio of the radius of the chamfered portion 5 to the outer diameter of the container body in this embodiment is the same as that in the previous embodiment.

FIG. 5 shows a metal tube container in which the mouth / neck portion 2, the shoulder portion 3 and the body portion 4 are all integrally formed of metal such as aluminum by impact molding or the like.

[0010]

As described above, according to the present invention, the contents in the tube container, especially the contents remaining near the shoulder can be squeezed out almost completely.

[Brief description of drawings]

FIG. 1 is a front view showing a tube container according to the present invention.

FIG. 2 is an enlarged cross-sectional view of part A in FIG.

FIG. 3 is a perspective view showing a state where the tube container according to the present invention is squeezed out.

FIG. 4 is a sectional view showing an embodiment of a synthetic resin tube container in which the tube container according to the present invention is integrally molded.

FIG. 5 is a sectional view showing an embodiment of a metal tube container in which the tube container according to the present invention is integrally molded.

FIG. 6 is a cross-sectional view showing another embodiment of the tube container according to the present invention when the molded body and the body are welded at the shoulder.

FIG. 7 is a front view showing a conventional tube container.

FIG. 8 is an enlarged sectional view of a B part in FIG.

FIG. 9 is a perspective view showing a state in which a conventional tube container is squeezed out.

[Explanation of symbols]

 1 Container body 2 Mouth neck 3 Shoulder 4 8 Body 5 Chamfer 6 Molded body

Claims (5)

[Claims] 1. A tube container, wherein the ratio of the radius of the chamfered portion formed at the intersection of the shoulder portion and the body portion to the outer diameter of the container body is increased. 2. The tube container according to claim 1, wherein the tube container is made of a single-layer or multi-layer synthetic resin material and integrally molded by a blow molding method. 3. The tube container according to claim 1, wherein the tube container is formed by integrally molding the mouth and neck and the shoulder, and the upper end of the body is welded to the molded body. 4. The tube container according to claim 1, wherein the tube container is a metal tube in which a mouth and neck and a shoulder are integrally formed. 5. The radius of the chamfered portion is [radius of the chamfered portion /
The diameter of the tube container] × 100> 20% is satisfied, and the tube container according to any one of claims 1 to 4.