JPH08318957A - Cap of tube as container - Google Patents

Abstract

PURPOSE: To provide a cap for a tube as a container filled with toothpaste, cleansing preparation, pigment preparation, food, or the like, having a device enabling a check to see that the contents of the tube have not been used as yet. CONSTITUTION: This cap A for a tube 10 as a container has an inner cylindrical part 20 which is fitted removably on the opening 12 of the tube 10 and an outer cylindrical part 22 which is provided integrally on the outer side of the inner cylindrical part 20. The outer cylindrical part 22 extends from its end, forming a fastening part 23 which is fastened to the lower end of the shoulder 13 of the tube 10. A severing part 24 is provided at the end of the outer cylindrical part 22 where the fastening part 23 adjoins.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for a tube container filled with a toothpaste, a cosmetic such as a face wash, a chemical such as an ointment, a food such as kneaded wasabi or a content such as a paint, and more specifically, a tube. The present invention relates to a tube container cap provided with a mechanism for confirming that the content of the container is in an unused state.

[0002]

2. Description of the Related Art As a conventional tube container cap of this type, for example, as shown in FIG. 6, an inner cylindrical portion 3 having a mounting hole that is detachably mounted in an opening 2 of a tube container 1 is provided. A tube container cap 4 is known.

As a mechanism for confirming that the contents of such a conventional tube container 1 are in an unused state,
The entire tube container 1 with the cap 4 is shrink-wrapped or put in a carton.

However, these shrink wraps,
In the carton packaging, there is much waste of the packaging material, which not only increases the cost but also has an environmental problem. Further, in order to realize a mechanism capable of confirming that the contents of the tube container 1 are in an unused state, if a new tube container or cap is produced, a mold for the tube container or cap is newly produced. Therefore, there is a problem such as an increase in cost.

[0005]

DISCLOSURE OF THE INVENTION The present invention is to solve the above-mentioned problems of the prior art, and it is possible to confirm that the contents of the tube container are in an unused state by a simple structure and simplify the packaging. It is an object of the present invention to provide a tube container cap that can be manufactured at low cost without complicating the manufacturing process.

[0006]

That is, the tube container cap of the present invention has the following constitution. (1) An inner cylinder part having a mounting part that is detachably mounted in the opening of the tube container, and an outer cylinder part integrally provided outside the inner cylinder part, and an end part of the outer cylinder part. A locking portion that locks to the lower end of the shoulder portion of the tube container is continuously provided, and a cutout portion is provided at the continuous portion between the locking portion and the end portion of the outer tubular portion. Cap for tube container. (2) The inner tubular portion is detachably attached to a fitting portion provided in the opening of the tube container, and the outer tubular portion contacts the tapered shoulder portion of the tube container during the opening operation, The cap for a tube container according to the above (1), wherein the cap is attached to and detached from the tube container by a pressing operation of the tubular portion and a vertical operation in a vertical direction.

[0007]

In the tube container cap of the present invention, the locking portion continuously provided to the end portion of the outer cylinder portion has a structure for locking the lower end of the shoulder portion of the tube container. It can be confirmed that the contents are unused.
When using, the outer cylinder part can be easily separated from the cutout part by grasping and pressing the outer cylinder part with a hand etc., and after cutting, the original tube container It can be used repeatedly as a cap.

[0008]

Embodiments of the present invention will now be described with reference to FIGS.

1 to 4 show a first embodiment of the present invention. The tube container cap A of the present embodiment is
This is a case where the tube container 10 is applied to a so-called one-touch cap that is pressed and vertically operated linearly to seal and open the opening 12 of the tube container 10.

In this tube container 10, a tapered shoulder portion 13 having an opening 12 at the center is welded to the inner peripheral portion of the upper end of a body portion 11 made of a synthetic resin laminate sheet in a cylindrical shape. It is attached by what is called "retrofitting". Therefore, there is a hardness difference between the joint portion of the body portion 11 and the shoulder portion 13 and the lower end portion of the joint portion. Also, the opening 12
A flare 12a and a fitting portion 12b are provided on the outer peripheral portion of the.

The tube container cap A of this embodiment is
Fitting portion 12b on the outer peripheral portion of the opening 12 of the tube container 10
An inner cylinder portion 20 that is detachably attached to the inner cylinder portion 20, and an outer cylinder portion 22 having an enlarged diameter that is integrally provided outside the inner cylinder portion 20 via a top plate 21. As shown in FIGS. 2 and 3, the inner tubular portion 20 is composed of an elastic leg piece 20c having a plurality of claw pieces 20b provided with slits 20a at predetermined intervals,
An annular engaging portion 23 that engages with the lower end of the shoulder 13 of the tube container 10 is continuously provided at the end of the outer tubular portion 22, and the engaging portion 23 and the end of the outer tubular portion 22 are connected. V in the installation part 22a
An annular cutout portion 24 formed of a V-shaped groove is provided. In addition, 25 is a cylindrical sealing ring provided in the center part of the inner periphery of the top plate 21. Further, 26, 26 ... Are guide pieces radially provided at intervals in the circumferential direction of the inner peripheral surface of the base portion of the inner tubular portion 20, and these guide pieces 26 are the outer peripheral surface of the tube container opening portion 12. The cap A is guided along the axis in the axial direction of the opening.

The one-touch type tube container cap A constructed as described above is integrally molded of a soft synthetic resin as a whole, and has a body portion 11 and a tapered shoulder portion 13.
Since there is a hardness difference between the joint part and the lower end part of the joint part, when the lower end part of the tapered shoulder portion 13 of the tube container 10 which is the lower end part of the joint part is tightened, a step is generated, and the outer step part is formed at this joint step part. The locking portion 23 continuously provided from 22 is locked as a stopper body. When the locking portion 23 is locked, it can always be confirmed that the contents of the tube container are unused. At the time of use, the cutout portion 24 formed by the V-shaped groove can be easily cut off by pinching and pressing both sides of the outer tubular portion 22 of the cap A. After that, the cap can be repeatedly used as the original one-touch type tube container cap.

The manner of use of the tube container cap A of this embodiment after separation is as follows. First, in the case of sealing, when the cap B is fitted and pressed from above the opening 12 so as to be attached to the tube container 10, it is elastic. The leg piece 20c descends while expanding along the flare 12a on the outer peripheral portion of the opening 12, and the claw piece 20c
It can be sealed by elastically locking and fitting the b to the fitting portion 12b. When opening, as shown in FIG. 4, the outer cylinder portion 22 is relatively strongly pinched from both sides with fingertips by utilizing the flexibility of the cap and pressure is applied, and the pressed portion is deformed into an elliptical shape. At the same time, its position is raised while contacting the tapered shoulder portion 13, and at the same time, each elastic leg piece 20c of the inner tubular portion 20 is also slightly deformed to cause the pawl piece 20 to move.
b is forcibly released from the lock of the fitting portion 12c, and the cap A can be opened by detaching it from the tube container 10.

FIG. 5 shows a second embodiment of the present invention. In the following embodiments, the same components as those in the first embodiment will be designated by the same reference numerals and the description thereof will be omitted. In order to seal and unseal the opening 12 of the tube container 10, the cap B for the tube container of the present embodiment uses the outer peripheral portion of the opening 12 of the tube container 10 as a threaded portion, and the inner cylindrical portion 20 of the cap B is The structure is such that it engages with the threaded portion provided on the inner circumference and is sealed and unsealed by the threading operation, and has the same effect as the first embodiment.

The present invention is constructed and used as described above, but is not limited to the above-mentioned embodiments, and various design changes etc. can be made without departing from the scope of the present invention. It is possible. In the above embodiment, the cutout portion 24 is the V-shaped groove, but it is not particularly limited as long as it is a structure that can be easily cut off by manually pressing the outer cylinder portion 22 or the like. For example, with a perforated structure, or by providing a separating piece in the continuous section,
A structure may be adopted in which the separating piece can be separated by pulling it in an annular shape.

In addition, the tube container cap of the present invention has the shoulder portion 13 of the tube container 10 at the end of the outer tube portion 22.
Since a locking portion 23 that locks at the lower end is continuously provided, and a cutout portion 24 is provided at the continuous portion 22a at the end portion of the outer cylindrical portion 22 and the locking portion 23, it is characterized in that other than that. Construction,
For example, the shape and structure of the tube container 10 or the mounting structure of the inner tubular part 20 that is detachably mounted in the opening 12 of the tube container 10 are not particularly limited, and for example, the body part of the tube container 10 may be used. The locking portion 23 may be locked more reliably by further reducing the thickness of 11.

[0017]

According to the present invention, it is possible to confirm that the contents of the tube container are in an unused state, and it is possible to simplify the secondary work such as shrink packaging and the packaging material. A tube container that can be manufactured at a low cost without complicating the manufacturing process because the locking portion that locks to the lower end of the shoulder portion of the tube container is simply connected to the structure of the conventional tube container cap. Caps are provided.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of the cap after separation.

FIG. 3 is a bottom view of FIG.

FIG. 4 is a partial cross-sectional view illustrating a cap attaching / detaching mechanism.

FIG. 5 is a partial sectional view showing a second embodiment of the present invention.

FIG. 6 is a partial cross-sectional view showing a conventional example.

[Explanation of symbols]

 A Cap for tube container 10 Tube container 20 Inner tube part 22 Outer tube part 23 Locking part 24 Cutout part

Claims (2)

[Claims] 1. An inner cylinder part detachably attached to an opening of a tube container, and an outer cylinder part integrally provided on the outer side of the inner cylinder part, wherein an end part of the outer cylinder part is provided. A tube characterized in that a locking portion for locking the lower end of the shoulder portion of the tube container is continuously provided, and a cutout portion is provided at a continuous portion of the locking portion and the end portion of the outer tubular portion. Container cap. 2. The inner cylinder portion is detachably attached to a fitting portion provided in an opening portion of a tube container, and the outer cylinder portion contacts a tapered shoulder portion of the tube container during an opening operation, The tube container cap according to claim 1, wherein the tube container cap is attached and detached to and from the tube container by a pressing operation of the outer tube portion and a vertical linear operation.