JP2011037458A - Inner plug for tube container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inner plug for a tube container which keeps the beautifulness of contents coming out of the tube container. <P>SOLUTION: The inner plug 1 for the tube container 2 includes a base 11 which is set in the middle of a path in a mouth 3 making the inside and the outside of the tube container 2 communicate with each other, and partitions the path into the inside and the outside of the tube container 2, a hollow projection 7 projecting from the base 11 toward the inside of the tube container 2 and having the inside communicating with the outside of the tube container 2, and a hole 16 which is formed at the tip of the projection 7 where the hole is formed almost perpendicular to the projecting direction of the projection 7 to make the inside of the projection 7 to the inside of the tube container 2 communicate with each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an inner stopper for a tube container.

  The tube container includes a check valve that prevents the backflow of the contents in the mouth and prevents the gas phase from being formed in the container (see, for example, Patent Document 1), and quantitatively removes the contents. There is an extruding container that flows out (see, for example, Patent Document 2).

Japanese Utility Model Publication No. 62-8937 Japanese Utility Model Publication No. 57-46286

  The tube container contains a lot of viscous contents. When filling a tube container with contents, even if the shape, flow rate, position, etc. of the filling nozzle are adjusted, a gas phase portion is inevitably generated on the shoulder portion of the container. If the contents are in contact with the gas phase part, the quality of the parts may be deteriorated and the aesthetics of the contents coming out of the tube container may be reduced.

  This invention is made | formed in view of such a subject, and makes it a subject to provide the inner stopper for tube containers which maintain the aesthetics of the content which comes out of a tube container.

  In order to solve the above-described problems, the present invention allows the contents in the tube container to come out through a hole provided in a hollow projecting portion that projects into the tube container.

  Specifically, it is an inner plug for a tube container, and is provided in the middle of a path of a mouth part that communicates the inside and outside of the tube container, and a base part that divides the path into an inside and an outside of the tube container, and the base part A hollow projecting portion projecting into the tube container from the inside, the projecting portion inside the projecting portion communicating with the outside of the tube container, and a tip portion of the projecting portion, A hole that communicates with the inside of the protruding portion and opens in a direction substantially orthogonal to the protruding direction of the protruding portion.

  With this inner cap for the tube container, the path of the mouth communicating the inside and the outside of the tube container is separated from the inside and the outside of the tube container by the base. Then, the contents flow out to the outside of the tube container through a hole provided at the distal end portion of the hollow protruding portion protruding from the base portion. This hole is opened in a direction substantially orthogonal to the protruding direction of the protruding portion. For this reason, the content in contact with the gas phase portion is less likely to enter the hole, and the content that has entered the hole changes the flow direction after entering and flows in a direction along the protruding direction of the protruding portion. For this reason, the portion of the contents where the components are separated is less likely to flow into the hole, and the contents of the contents will flow out after being homogenized by changing the flow direction within the protrusion. , The aesthetics of the contents coming out of the tube container can be maintained.

In addition, at least a tip portion of the protruding portion may contact a content filled in the tube container, and the hole may be provided at a portion of the protruding portion that contacts the content. In the case of the tube stopper configured as described above, the hole provided in the protruding portion does not come into contact with the gas phase portion, so that the portion of the contents where the components are separated does not easily flow into the hole. , The aesthetics of the contents coming out of the tube container can be maintained.

  The inner cap for the tube container may further include a fitting member that fits in the gap between the protruding portion and the mouth portion and fills the gap. With a check valve for a tube container configured in this way, no space is formed in the gap between the protruding portion and the mouth portion, so that the content is difficult to touch the gas phase portion, and the content of the content coming out of the tube container is reduced. Aesthetics can be maintained.

  The inner cap for a tube container according to the present invention is an assembly that is inserted into the mouth of the tube container from the outside of the container and is partially left outside, or is attached to the mouth of the tube container. It is not limited to those that are assembled from the inside of the container by being inserted from the inside of the container, and those that are integrally molded with the tube container are included. .

  It is possible to provide an inner plug for a tube container that maintains the aesthetics of the contents that come out of the tube container.

It is structural drawing of a tube container. It is a figure which shows the structure of an inside stopper. It is an internal structure figure of an inner sleeve nozzle. It is an internal structure figure of a main body. It is a figure explaining the flow of the contents in an inside plug. It is a figure which shows the modification of an inside plug. It is a figure which shows the 1st modification of an inner stopper. It is a figure which shows the 2nd modification of an inner stopper. It is a figure which shows the 3rd modification of an inner stopper. It is a figure which shows the 4th modification of an inside stopper.

  Hereinafter, embodiments of the present invention will be described. Embodiment described below shows the embodiment of this invention exemplarily, and this invention is not limited to such embodiment.

  The structure of the tube container provided with the inner stopper according to the embodiment of the present invention is shown in FIG. As shown in FIG. 1, the inner plug 1 according to the present embodiment is fitted into the mouth portion 3 formed in the tube container 2. The tube container 2 is a container for containing a viscous liquid content such as cosmetics, and has a tapered tip nozzle 4 on the outlet side of the mouth 3. The tube container 2 is made of a resin that can be elastically deformed by the force of the user's hand, and the shape is restored when the applied force is released.

  The configuration of the inner plug 1 is shown in FIG. As shown in FIG. 2, the inner plug 1 includes a main body 5, an inner sleeve nozzle 7 accommodated in the main body 5, and a sleeve 6 sandwiched between the main body 5 and the inner sleeve nozzle 7. The sleeve 6 is a tubular member and is open at the top and bottom. Hereinafter, the internal structures of the inner sleeve nozzle 7 and the main body 5 will be described.

The internal structure of the inner sleeve nozzle 7 is shown in FIG. As shown in FIG. 3, the inner sleeve nozzle 7 is a cylindrical member, and is provided with a collar 11 at the upper end. Further, on the side surface of the inner sleeve nozzle 7, there are provided an upper step surface 13 and a lower step surface 14 that form a step 12 due to different outer diameters. When the inner sleeve nozzle 7 is inserted into the main body 5 via the sleeve 6 as shown in FIG. 2, the upper step surface 13 contacts the inner peripheral surface of the sleeve 6, and the collar 11 contacts the upper surface of the main body 5. Thus, the main body 5 is engaged. As shown in FIG. 3, the inner sleeve nozzle 7 has a passage 15 extending downward from the upper end and two holes 16 penetrating from the lower end of the passage 15 to the side. Therefore, the content of the tube container 2 flows into the passage 15 through the hole 16 and flows upward of the passage 15. The number of holes 16 is not limited to two, and is adjusted as appropriate according to the properties of the contents. The diameter of the hole 16 is also adjusted as appropriate according to the properties such as the viscosity of the contents. Further, the length of the inner sleeve nozzle 7 in the vertical direction is the content when the hole 16 is buried in the contents in the tube container 2 and the tube container 2 is crushed with the inner plug 1 attached to the mouth 3. The length is set so as to flow from the inside to the hole 16.

  The internal structure of the main body 5 is shown in FIG. The main body 5 is a cylindrical member having an open upper end and a hole in the bottom plate, and is formed so that the outer surface 17 of the main body 5 fits into the mouth 3 of the tube container 2. 2, when the sleeve 6 is inserted, the outer peripheral surface of the sleeve 6 and the inner peripheral surface 18 of the main body 5 come into contact with each other so that the sleeve 6 and the main body 5 are engaged with each other. It is supposed to be. By fitting the main body 5 into the gap between the inner sleeve nozzle 7 and the mouth portion 3, the space of this gap is filled. Therefore, the gas phase part in the tube container 2 becomes small, and the contents are difficult to touch the gas phase part.

  The flow of contents in the inner plug 1 described above will be described. The flow of the contents in the inner plug 1 is shown in FIG. When a force is applied to the tube container 2 by the user, the content that has passed through the hole 16 flows into the passage 15 and flows out from the tip of the tip nozzle 4. Here, the content that has passed through the hole 16 changes its flow direction and flows through the passage 15. Therefore, the contents flowing into the passage 15 from the hole 16 are agitated in the passage 15. It is possible to adjust the flow rate of the content coming out of the hole 7A by the combination of the tube pressing pressure for taking out the contents of the tube container 2 and the inner diameter and quantity of the holes 16 with respect to the inner diameter of the hole 7A.

The result of the demonstration experiment regarding the effect of the embodiment will be described. In this demonstration experiment, samples shown in the table below are prepared and comparative experiments are performed. That is, the inner plug 1 having four and six holes 16 is prepared. Further, the inner diameter of the hole 16 was set to 1.0 mm, and two types of the inner diameter of the passage 15 were prepared: 2.0 mm and 2.5 mm.

The results of a comparative experiment of how the contents exit from the tip nozzle 4 of the tube container 2 and the mixing condition when the samples 1 to 5 shown in Table 1 are attached and when the inner plug 1 is not attached are as follows. As shown in FIG.

  In Table 2, “◯” indicates that the contents are homogeneous, “Δ” indicates that the contents are substantially homogeneous, and “x” indicates that the components separated in the container are heterogeneous. The contents are oil gel products and emulsions such as creams, cleansings, liquid foundations, etc., and left for about one month after filling in the tube container 2 so that the oil component separated in the gas phase part is accumulated. Is. As shown in Table 2, it can be seen that the contents of the inner plug 1 provided with six holes 16 are homogeneous and the effect of maintaining the aesthetics of the contents from the tube container 2 is maintained. Similarly, in the case where four holes 16 are provided, the contents are almost homogeneous and it can be seen that there is an effect of maintaining the aesthetics of the contents that have come out of the tube container 2. On the other hand, in the case of the tube container 2 not provided with the inner plug 1, the oil component separated in the container is discharged from the tip nozzle 4, and then the content composed of the main components comes out, and the content discharged from the tube container 2. It can be seen that the aesthetics are not maintained.

  When filling the tube container with the contents, it is filled so that air accumulation does not occur as much as possible, but even if the shape of the filling nozzle and the filling timing are devised, the shoulder part of the tube container and the tube tip (nozzle) ) Air inevitably remains. If the contents are highly viscous, large air pools are likely to occur. To completely eliminate such air pools, a device for evacuating the tube container is required. It is not often used in equipment for filling things. Therefore, when the check valve is a normal product, if the contents are pushed out of the tube container, the oil and moisture separated from the contents in the tube container will come out of the tube container without mixing with the active ingredients. become. However, as shown in the verification results in Table 2 above, in the case of the inner plug 1 according to the above embodiment, the contents enter the passage 15 from the hole 16 at the tip of the inner sleeve nozzle 7 embedded in the contents. Since it flows in and exits from the tube container 2, the oil component separated in the gas phase portion is difficult to go out of the tube container 2. For this reason, the aesthetics inherent in the contents coming out of the tube container 2 are maintained.

  As shown in FIG. 6, the inner plug 1 may have a rounded portion where the inner sleeve nozzle 7 protrudes from the main body 5 (the portion indicated by R in FIG. 6). If the inner plug 1 is formed in this way, it is difficult to form a gas phase portion when the tube container 2 is filled with the contents. This makes it difficult for the contents in the tube container 2 to touch the gas phase portion, so that the oil content is less likely to be separated, and the aesthetics of the contents that come out of the tube container 2 are further maintained.

FIG. 7 is a structural diagram of a tube container provided with an inner stopper according to a first modification in which the inner stopper according to the embodiment is modified. As shown in FIG. 7, the inner plug 1A according to the first modification is integrally formed with the tube container 2A. The inner plug 1A integrally molded with the tube container 2A has a cylindrical nozzle 20A protruding from the mouth of the tube container 2A into the tube container 2A, like the inner plug 1 according to the above-described embodiment. Yes. A passage 15A is provided inside the nozzle 20A, and a hole 16A that conducts the inside and outside of the nozzle 20A is provided at the tip of the nozzle 20A. The nozzle 20A has a predetermined length like the sleeve nozzle 20 described above, and the hole 16A is filled with the contents when the contents are filled in the tube container 2A. Therefore, in the case of the inner plug 1A according to the present modification, the contents flow into the passage 15A from the hole 16A at the tip of the nozzle 20A embedded in the contents and exit from the tube container 2A. It is difficult for the oil separated at the portion to go out of the tube container 2A. For this reason, the aesthetic nature which the content which comes out of 2 A of tube containers originally has will be maintained.

  FIG. 8 is a structural diagram of a tube container provided with an inner plug according to a second modification in which the inner plug according to the embodiment is modified. As shown in FIG. 8, the inner plug 1B according to the second modification includes a cylindrical nozzle 20B that protrudes from the mouth portion of the tube container 2B into the tube container 2B, similarly to the inner plug 1 according to the above-described embodiment. Have. And the channel | path 15B is provided in the inside of the nozzle 20B, and it has the hole 16B which conducts the inside and outside of the nozzle 20B at the front-end | tip of the nozzle 20B. When the inner plug 1B is inserted into the mouth from the outside of the tube container 2B along the direction of the arrow in FIG. 8, the protrusion 19B is hooked on the mouth to keep the engaged state. The nozzle 20B has a predetermined length in the same manner as the sleeve nozzle 20 described above, and the tube container 2B is filled with contents in a state where the inner plug 1B is inserted into the mouth of the tube container 2B. And the holes 16B are filled with the contents. Therefore, in the case of the inner plug 1B according to the present modification, the contents flow into the passage 15B from the hole 16B at the tip of the nozzle 20B embedded in the contents and exit from the tube container 2B. It is difficult for the oil separated at the portion to go out of the tube container 2B. For this reason, the aesthetic nature which the content which comes out of the tube container 2B originally has will be maintained.

  FIG. 9 is a structural diagram of a tube container provided with an inner stopper according to a third modification in which the inner stopper according to the second modification is modified. As shown in FIG. 9, the inner plug 1 </ b> C according to the third modification is a cylindrical nozzle that protrudes into the tube container 2 </ b> C from the mouth of the tube container 2 </ b> C, similarly to the inner plug 1 </ b> B according to the second modification described above. 20C. A passage 15C is provided inside the nozzle 20C, and a hole 16C that conducts the inside and outside of the nozzle 20C is provided at the tip of the nozzle 20C. When the inner plug 1C is inserted into the mouth portion from the outside of the tube container 2C along the direction of the arrow in FIG. 9, the projection 19C is hooked into the groove provided in the mouth portion to keep the engaged state. Yes. With this inner plug 1C, the oil separated in the gas phase portion is difficult to go out of the tube container 2C, so that the aesthetics inherent in the contents coming out of the tube container 2C are maintained.

  FIG. 10 is a structural diagram of a tube container provided with an inner stopper according to a fourth modification in which the inner stopper according to the second modification is modified. As shown in FIG. 10, the inner plug 1D according to the fourth modified example is a cylindrical nozzle that protrudes into the tube container 2D from the mouth of the tube container 2D, similarly to the inner plug 1B according to the second modified example described above. 20D. A passage 15D is provided inside the nozzle 20D, and the tip of the nozzle 20D has a hole 16D that conducts the inside and outside of the nozzle 20D. When the inner plug 1D is inserted into the mouth portion from the inside of the tube container 2D along the direction of the arrow in FIG. 10, the projection 19D is hooked on the projection provided in the mouth portion to keep the engaged state. . If the inner plug 1D is used, the oil component separated in the gas phase part is unlikely to go out of the tube container 2D, so that the aesthetics inherent in the contents coming out of the tube container 2D are maintained, and the tube container 2D is maintained. Even if the contents are pushed out with a strong force, the inner plug is difficult to come off.

1 ・ ・ Inner plug 2 ・ ・ Tube container 3 ・ ・ Port 7 ・ ・ Inner sleeve nozzle

Claims (3)

An inner stopper for a tube container,
Provided in the middle of the path of the mouth portion communicating between the inside and the outside of the tube container, and a base part separating the path into the inside and the outside of the tube container;
A hollow projecting portion projecting from the base into the tube container, wherein the projecting portion communicates with the outside of the tube container.
A hole that is provided at the tip of the protrusion and communicates with the inside of the tube container and the inside of the protrusion, and that opens in a direction substantially perpendicular to the protrusion direction of the protrusion.
Inner stopper for tube container. The protruding portion is in contact with the contents filled in the tube container at least at the tip portion;
The hole is provided in a portion of the protrusion that contacts the contents.
The inner stopper for a tube container according to claim 1. A fitting member that fits in the gap between the protrusion and the mouth and fills the gap;
An inner stopper for a tube container according to claim 1 or 2.

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