JPS61203357A - Felxible tube vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flexible tube container used as a container for mayonnaise, toothpaste, caulking agent, etc.

(Prior Art and its Problems) Conventionally, containers made of lead tubes or soft vinyl chloride tubes have been used as containers for toothpaste and caulking agents. The former tube container gradually deforms its outer diameter by pressing the outer periphery of the container and pushing out the contents, so the remaining amount can be seen by the appearance of the tube container. However, since the container remains deformed, it has the disadvantage of being unsightly. The latter container made of a soft vinyl chloride tube is elastic, so even after the contents are pushed out, the outer diameter of the container returns to the state before the contents were pushed out due to its elasticity, making it relatively aesthetically pleasing. However, when the container returns to its original shape, air enters from the nozzle opening of the container, and the contents may undergo chemical changes due to the entered air, resulting in deterioration in quality. Furthermore, since the tube returns to its original shape, in order to push out the contents again, it is first necessary to expel the air itself and then push out the contents, which increases the amount of pressure applied to the tube and is troublesome. It had

Furthermore, as a container for caulking agent, there has conventionally been a container as shown in FIG. This is a container for storing caulking agent for construction, and as shown in the figure, the caulking agent is efficiently pushed out with a caulking gun. In this container, the container body 1 is made of a cylinder made of cardboard,
The push-in bottom plate 2 is configured to be in sliding contact with the rear end surface. Therefore, there is a slight gap between the container body 1 and the bottom plate 2, which causes air to enter the interior and cause the caulking material to harden.

[Summary of the Invention] Therefore, an object of the present invention is to provide a tube that prevents air from entering the inside of the container, even if it is made of a soft vinyl chloride tube, and in which the amount remaining in the container can be easily compared. , its gist is as follows.

That is, the present invention relates to a tube container whose main body is made of a soft tube and which has an ejection opening at the tip of the main body. and,
A feature of the present invention is that the rear end of the container body 1 is folded back inside the tube. At the same time, the folded end is closed liquid-tightly. A pushing bottom plate 2 having a cross section substantially equal to or smaller than the cross section of the tube is provided at the folded end. The tube is characterized in that the folded end can enter into the tube by pushing the bottom plate 2.

[Embodiments of the invention]

Next, each embodiment of the present invention will be described based on the drawings.

FIG. 1 is a fragmentary elevational view of a main part showing a first embodiment of the present invention.

The container main body of this embodiment is made of a soft vinyl chloride tube or a soft tube having a certain degree of elasticity of synthetic rubber (t), and an extrusion port 4 is formed at the tip thereof, and a cap 5 is attached to the extrusion port 4. The lower end of the container body 1 is folded back inward to form a double cylindrical part, and the folded end is connected to the bottom plate 2 for pushing and made of the same material as the body 1. They are liquid-tightly joined to each other by fusion using soft materials such as The container body 1 is configured to be movable.Furthermore, a semi-kneaded viscous agent such as construction caulking agent, toothpaste, etc. is stored inside the container body 1.In this embodiment, camping can be carried out. If you remove it and press the push-in bottom plate 2 upward, the push-in bottom plate 2 will be removed.
moves upward, and the viscous agent 8 is extruded from the extrusion port 4. At this time, the folded portion 6 moves upward as the push-in bottom plate 2 rises. Although the container main body l has a certain degree of elasticity, since a folded part 6 is formed at its lower part and a sliding edge 7 is in sliding contact with the inner surface of the container with a certain amount of contact pressure, it is not possible to fold it upward once. After the part has been moved, it does not return to its original position, so when pressing the push-in base plate 2 and moving it upwards, the base plate 2 retains its position. When the push-in bottom plate 2 is pushed all the way, the length of the container body 1 is approximately 1.
/2.

Next, FIG. 2 shows a second embodiment of the present invention, in which the push-in bottom plate 2 is configured to be in contact with the inner surface of the container body 1. The lower edge of the container body 1 is folded back inward, and its tip is joined to the push-in bottom plate 2 by means such as fusion or adhesive. The maximum diameter of this push-in bottom plate 2 is formed to be slightly larger than the inner diameter of the easy body 1. In the embodiment shown in FIG. 2 as well, the push-in bottom plate 2
By pressing upward, the folded portion 6 is sequentially moved upward.

In particular, in this embodiment, since the diameter of the bottom plate 2 is slightly larger than the inner diameter of the container body, the contact resistance between the two becomes large. Therefore, it is possible to reliably prevent the bottom plate 2, once pushed in, from returning to its original position.

Next, FIG. 3 shows a third embodiment of the present invention, and in this embodiment, the cross section of the container body 1 is formed into a tapered shape that gradually becomes narrower downward. Therefore, the folded portion 6
is relatively easy to form, and the movement of the push-in bottom plate 2 is also relatively easy. However, if the taper angle θ is too large, there is a risk that the viscous agent 8 may enter the folded portion, so it is necessary to set θ relatively small.

Next, FIG. 4 shows another embodiment of the present invention. In this embodiment, a caulking agent is housed in a container body 1 made of a soft vinyl tube, and this caulking agent is extruded by an extrusion gun. It is composed of The difference from the conventional type shown in FIG. 5 is that the container body 1 is made of a soft vinyl tube, and the rear end is completely closed. Furthermore, a folded part 6 is provided at the rear of the container body 1, and the push-in bottom plate 2 is attached thereto. Therefore, by pressing the pushing bottom plate 2 with the pushing gun, the folded part 6 gradually moves forward, and the inside of the container and the bottom are always kept airtight, and no air enters from the rear of the container body.

〔Effect of the invention〕

As is clear from the above description, the flexible tube container of the present invention has the following configuration.

That is, the present invention relates to a tube container whose main body is made of a soft tube and which has an ejection opening at the tip of the main body. and,
A feature of the present invention is that the rear end of the container body 1 is folded back inside the tube. At the same time, the folded end is closed liquid-tightly. A pushing bottom plate 2 having a cross section substantially equal to or smaller than the cross section of the tube is provided at the folded end. The tube is characterized in that the folded end can enter into the tube by pushing the bottom plate 2.

The tube container of the present invention has the above configuration and has the following effects.

(1) In this tube container, by pushing the push-in bottom plate 2, the folded part 6 folded inward gradually moves forward. The push-in bottom plate 2 always supports the bottom of the contents of the container, and the inside of the container can always be kept full. Therefore, air does not enter the container, and chemical changes such as oxidation and hardening of the contents due to air entry and deterioration of the contents are prevented.

(2) Also, since the folded end is liquid-tightly closed, there is no risk of air entering from the rear end of the tube.
There is no risk of oxidation or hardening of the contents due to this.

(3) Also, according to this container, as the contents are used, the folded part gradually moves forward, and at the final stage of use, the length of the tube becomes approximately 1/2, for example. The bottom plate 2 can be completely pushed in from the rear with a relatively short rod, fingers, etc., and the contents can be completely used up.

(4) Furthermore, according to the present container, since the bottom of the container can be stood vertically on a flat surface, the area occupied by the container is reduced in the stored state, making storage convenient. At the same time, it is easy to organize during storage and has a good appearance.

(5) Furthermore, even if the inside of the tube of the container cannot be seen, the remaining amount can be seen by the length of the tube. Note that if the container is made of a translucent or transparent material so that the inside can be seen, it will be easier to check the remaining amount.

(6) Also, according to this container, since there is some resistance when the folded part moves, a large amount of contents will not come out carelessly from the extrusion opening, and even a very small amount can be extruded. .

(7) Furthermore, this tube container has a relatively simple structure and can be provided at low cost.

[Brief explanation of the drawing]

Fig. 1 is a fragmentary elevational view of a main part showing a first embodiment of the container of the present invention, Fig. 2 is a vertical sectional view of a main part of a second embodiment, and Fig. 3 is a main part of a third embodiment of the same. FIG. 4 is a cutaway elevational view in which the cylindrical portion of the container body 1 is tapered rearward; FIG. Figure 5 shows an example of a conventional container, which is pushed out with a caulking gun. 1... Container body 2... Bottom plate for pushing 4.
... Extrusion port 5 ... Cap 6 ... Folded part 7 ... Sliding edge 8 ... Viscous agent 9
...Gun body 10...Pushing rod 1)...
Spring Agent Patent Attorney Kubo 1) Takumi Figure 2 Figure 1 Figure 5

Claims (1)

[Claims] The container body (1) is made of a soft tube, and the body (1)
In a tube container having a push-out opening at the tip thereof, the rear end of the main body (1) is folded back inside the tube, the folded end is liquid-tightly closed, and the folded end has a cross section approximately equal to the cross section of the tube. A flexible tube container, comprising a push-in bottom plate (2) having a cross section of 2.0 or less, and configured such that the folded end can enter the inside of the tube by pushing the bottom plate (2).