JP2000296861A - Tube container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tubular container wherein a connected section between the pripheral edge section of a shoulder section and a tube main body is prevented from becoming thinner, and the preservation stability of a content and the strength of the container can be improved. SOLUTION: A connected section 14b between the peripheral edge section of a shoulder section 12 and the longest edge 22b of a tube main body, is formed into a curved surface, and when a distance from the central line 10a of the tube main body to a final point 24 on the discharging port side of the curved surface is taken as A, and a distance from the central line 10a to a final point 26 on the longest edge side of the tube main body is taken as B, the relationship of those distances is made to satisfy A<=B, and a relationship of the distance A and the radius R of the tube main body 10 is made to satisfy A<1.3 R.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a paste, gel, jelly or cream-like plastic or quasi-liquid substance as a content, such as toothpaste, shampoo, rinse, treatment, and condiment seasoning. Alternatively, the present invention relates to a tube container for housing industrial products such as an adhesive and putty.

[0002]

2. Description of the Related Art Various forms of tube containers containing paste, gel, jelly or creamy plastic or semi-liquid materials such as toothpaste, shampoo, rinse, treatment, and condiment seasoning are known. There is something. In this type of tube container, as shown in FIG. 4, a shoulder portion c having a substantially conical side surface is formed so as to cover one end in the axial direction of a flexible tube body a. A spout portion d having a smaller diameter than that of the spout portion is formed so as to protrude, and a cap e is detachably provided on the spout portion d.

Generally, in a tube container, as shown in FIG. 4, the spout port d is formed so as to protrude from a shoulder c in a direction along the center line b of the tube main body a. When the remaining amount is low, even if the tube body a is squashed and the contents are pushed out, the body a cannot be squashed into the shoulder c, and the shoulder c itself itself generally has high rigidity. It is hard to be crushed, and the contents easily remain in the shoulder c. Therefore, as a countermeasure, the shoulder is bent obliquely with respect to the center line of the tube body so that the vicinity of the distal end of the tube body a can be crushed into the shoulder c so that the remaining contents can be easily pushed out. (Japanese Utility Model Laid-Open No. 62-19945, Utility Model Registration No. 2)
No. 523770, Utility Model Registration No. 3013395, etc.).

[0004]

If the design of the tube container with the shoulder portion bent obliquely is designed as it is in the same way as the design of the ordinary tube container, as shown in FIG. One end of the tubular tube body a is obliquely cut to form a shoulder c and a spout d on the cut surface. The spout d is formed by a center line f of the shoulder c intersecting with the tube body center line b. Is formed along the projection.

[0005] However, if the tube body is made by blow molding, the tip side c1 of the shoulder portion c becomes thinner, which has a problem of adversely affecting the storage stability of the contents and the strength (drop strength) of the container.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is intended to prevent the connection between the peripheral portion of the shoulder and the longest side of the tube main body from becoming thin, thereby improving the storage stability of the contents. An object of the present invention is to provide a tube container capable of improving the strength of the container.

[0007]

The present invention has the following configuration to achieve the above object. The invention of claim 1 is
The axial end of the flexible tube main body containing the fluid content is closed with a shoulder, and a spout having a smaller diameter than the tube main body is formed protruding at the shoulder to press the tube main body. A tube container capable of extruding the contents in the main body from the spout portion by doing so that the vertical line of the bottom surface imagined on the shoulder and the projecting direction of the spout portion are in relation to the center line direction of the tube main body. Inclined, the connecting portion between the peripheral edge of the shoulder and the longest side of the tube body is formed into a curved surface, and the distance from the center line of the tube body to the end point on the spout side of the curved surface is A, and from the center line. The distance between the curved surface and the end of the longest side of the tube body is B, and the relationship between the distances is A ≦ B. The distance A and the radius R of the tube body
And A <1.3R. The invention according to claim 2 is the tube container according to claim 1, wherein the relationship between the distance A and the radius R is A <1.0R.

According to the present invention, there is provided a tube container in which a connecting portion between a peripheral portion of a shoulder portion and a longest side of a tube main body is formed in a curved surface, and a distance from a center line of the tube main body to an end point of the curved surface on a spout side. A, and the distance from the center line to the end point of the curved surface on the longest side of the tube body is B, and the relationship between those distances is A ≦ B, and the relationship between the distance A and the radius R of the tube body is A. Since the thickness is set to <1.3R, the thickness of the connection portion is not easily reduced, and therefore, the durability such as the drop strength of the container body is improved, and the storage stability of the content stored in the container body is reduced. Never do. It is preferable that the relationship between the distance A and the radius R is A <1.0R.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. Drawing 1 is an explanatory view of a tube container in an embodiment, (a) is the figure seen from the perpendicular line of the bottom of a shoulder, and (b) is a side view around the tip part of a tube container.

As shown in FIG. 1, the tube container accommodates a fluid content such as a plastic or quasi-liquid material, and has one end in the axial direction of a flexible tube body 10 formed by blow molding. The part connects and closes the shoulder part 12 with the connection parts 14a and 14b. The surface of the shoulder 12 has a substantially planar shape, and a spout 16 having a smaller diameter than the tube body 10 is formed on the shoulder 12 so as to project therefrom. Can be extruded from the spout 16.

Although the other end of the tube body 10 is not shown, it has the same shape as that of FIG. 4, and the other end is closed after the contents are accommodated in the filling line. The spout 16
The cap 18 is screwed into the outer surface or the like.
Are provided detachably.

A bottom surface (reference numeral 20) imagined on the shoulder 12
The vertical line H (which corresponds to the shoulder 12 in the case of the tube container of FIG. 1) and the projecting direction I of the spout 16 are both inclined with respect to the direction of the center line 10 a of the tube body 10. Due to the inclination of the shoulder portion 12, the length of the side of the tube main body 10 in the direction of the center line 10 a from the other end of the tube main body 10 to the connection portion is the shortest side (the shortest side 2).
2a) and the longest side (longest side 22b) is formed. In FIG. 1, the connection portion on the shortest side 22a side is indicated by reference numeral 14a, and the connection portion on the longest side 22b side is indicated by reference numeral 14b.

The connecting portion 14b between the peripheral portion of the shoulder portion 12 and the longest side 22b of the tube body is formed in a curved surface. At the same time, the distance from the tube body center line 10a to the spout-side end point 24 of the curved surface of the connection portion 14b is A, and the distance from the center line 10a to the connection portion 14b
The distance from the curved surface to the end point 26 on the longest side 22b of the tube body is B, and the relationship between the distances is A ≦ B. The relationship between the distance A and the radius R of the tube main body 10 is A <1.3R. In this case, the relationship between the distance A and the radius R of the tube body is expressed as A <1.0R.
It is preferred that

The contents contained in the tube body 10 are plastic, semi-liquid substances such as paste, gel, jelly or cream, such as toothpaste, shampoo,
Living goods such as rinses, treatments, kneading seasonings,
Alternatively, various products such as industrial products such as adhesives and putty can be used.

According to the tube container of the embodiment, the distance A from the center line 10a of the tube main body to the end point 24 on the outlet side of the curved surface of the connecting portion 14b and the distance A from the center line 10a to the end point 26 on the longest side 22b of the tube main body. Let the relationship with distance B be A ≦ B, and let the relationship between distance A and radius R be A <A
Because of 1.3R, the thickness of the connection portion 14b is not easily reduced, and the durability and storage stability of the tube container 10 are improved.

Here, the tube containers T1 and T2 of the present invention and the comparative example T3 of the tube containers in which the distances A and B and the radius R were variously set were formed by blow molding. In these cases, the radius R of the tube body is 20 mm, and the wall thickness of the tube side is 1 mm.
Is common. These inventive examples T1 and T2 and comparative example T
Table 1 below shows the measurement results of the wall thickness of the tube container connection part for No. 3.

[0017]

[Table 1]

According to the above results, the thickness of the connection portion of the present invention examples T1 and T2 is 0.65 mm or more, the thickness of the connection portion / the wall thickness of the tube side is 65% or more, and the thickness of the connection portion is 65% or more. I got enough. On the other hand, in Comparative Example T3, the connection portion had a thickness of 0.40 mm, the connection portion thickness / the tube side wall thickness was 40%, and the connection portion was not sufficiently thick and was thin. Was noticeable. Therefore, the relationship between the distance A and the radius R of the tube body is expressed as A <1.3R (A / R <
It is understood that the thickness of the connection portion can be sufficiently increased according to 1.3). Then, as in Example T1 of the present invention, the distance A
A <1.0R (A / R1.0)
In this case, it is understood that the thickness of the connection portion can be further increased, which is preferable.

Although the preferred embodiment of the present invention has been described in the above embodiment, it is needless to say that the present invention is not limited to this. For example, as shown in FIGS. 1 and 2, the shoulder may be formed in a substantially flat surface, and as shown in FIG. 3, the shoulder may be formed in a substantially conical side surface shape. In addition, the cap may not only be screwed into the spout, but also be a hinge cap structure connected to the spout base or the neck via a hinge structure.

[0020]

As described above, according to the present invention,
The connection between the peripheral edge of the shoulder and the longest side of the tube body can be prevented from becoming thin, so that the storage stability of the contents and the strength of the container can be improved.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are an explanatory view and an explanatory view of a main part of a tube container according to an embodiment of the present invention.

FIGS. 2A and 2B are explanatory views of a tube container according to a comparative example of the present invention, in which FIG. 2A is an explanatory view of a shoulder, and FIG.

FIG. 3 is an explanatory diagram of a tube container according to another embodiment of the present invention.

FIG. 4 is an explanatory view of a conventional tube container.

FIG. 5 is an explanatory view of another conventional example of a tube container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tube main body 10a Tube main body center line 12 Shoulder part 12a, 12b Connection part of the shortest side, connection part of the longest side 16 Injection part 22a, 22b Shortest side of the tube main body, longest side 24 Outlet end point 26 Longest side end point of tube body with curved surface of connection 12b

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Teru Matsumoto 1-3-7 Honjo, Sumida-ku, Tokyo Inside Lion Corporation (72) Inventor Hiroyuki Kato 1-3-7, Honjo, Sumida-ku, Tokyo No. Lion Corporation F term (reference) 3E065 AA02 DA13 DA14 DC10 GA01 GA03

Claims (2)

[Claims] 1. A flexible tube body accommodating a fluid content is closed at an axial end by a shoulder, and a spout having a smaller diameter than the tube body protrudes from the shoulder. A tube container capable of pushing out the contents in the main body from a spout by pressing the tube main body, wherein a vertical line of a bottom surface imagined as a shoulder and a projecting direction of the spout are the center of the tube main body. Inclined with respect to the line direction, a connecting portion between the peripheral portion of the shoulder portion and the longest side of the tube main body is formed in a curved surface, a distance from a center line of the tube main body to an end point on the spout side of the curved surface is A, and The distance from the center line to the end point of the curved surface on the longest side of the tube body is B, and the relationship between the distances is A ≦ B. The relationship between the distance A and the radius R of the tube body is A <
A tube container characterized by 1.3R. 2. The relation between the distance A and the radius R is expressed as A <
The tube container according to claim 1, wherein the tube container is set to 1.0R.