JP2006069656A - Container and inside plug therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inside plug for a container which can prevent a liquid from flowing while swinging fore and aft from the mouth of the container sharing inlet and outlet and having a smaller mouth than the outside diameter of the container and through which the liquid is poured smoothly and provide the container. <P>SOLUTION: The inside plug 20 comprises a fixing part 21 to be fixed to the mouth part 11 of a PET bottle 10 attachably and detachably and a pipe 25 which is fixed to the fixing part 21 and one end of which is located in the mouth of the mouth part 11 and the other end of which elongates in the inner face of the expanding part 12 of the PET bottle 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an inner plug for a container having a common mouth part for an inlet for injecting liquid into the container and a spout for pouring liquid from the container, and the mouth is smaller than the outer diameter of the container, and the container.

  In a container that shares the liquid inlet and spout (outlet) and whose mouth is smaller than the outer diameter of the container, a plastic container such as a plastic bottle, a bottle containing liquor, an 18 liter can containing soy sauce, There are various containers such as oil cans, plastic tanks and aluminum cans. Hereinafter, as an example, a description will be given by taking a PET bottle that is currently widely used as an example. As shown in FIG. 5, the PET bottle 10 includes a mouth portion 11 through which the liquid flows out, a widening portion 12 that spreads outside the mouth portion 11, a trunk portion 13 that extends downward from the widening portion 12, It consists of a bottom 14 at the lower end of the body 13. A screw portion 15 is formed on the outer periphery of the mouth portion 11, and a cap (not shown) is screwed to the screw portion 15. When liquid is poured from such a plastic bottle 10 into a glass or the like, air hardly flows into the plastic bottle 10 from the mouth portion 11 of the plastic bottle 10, so that the liquid flows out from the mouth portion 11 while swinging back and forth and poured smoothly. I could not. This phenomenon becomes more remarkable as the capacity of the plastic bottle 10 increases.

For example, Patent Documents 1 and 2 can be cited as solutions for solving the above-described problems. In Patent Document 1, the mouth portion of a plastic container such as a plastic bottle is partitioned vertically and finely like a beehive. In Patent Document 2, a bellows is formed in the mouth part so that the mouth part can be inclined or the mouth part can be bent.
Utility Model Registration No. 3038592 Utility Model Registration No. 3056860

  In Patent Document 1, the mouth portion of the PET bottle is simply divided into a plurality of portions, and it is difficult for air to flow into the PET bottle from the mouth portion, and it is inevitable that the liquid swings back and forth from the mouth portion.

  Since patent document 2 can incline or incline a mouth part, it can pour easily into cups etc. efficiently. However, even with this structure, it is difficult for air to flow into the PET bottle from the mouth, and it is inevitable that the liquid sways back and forth from the mouth as in Patent Document 1.

  An object of the present invention is to share a liquid inlet and a spout and prevent the liquid from flowing back and forth from the mouth of the container whose mouth is smaller than the outer diameter of the container and smoothly pour it. An object of the present invention is to provide an inner stopper for a container and a container.

  According to a first aspect of the present invention for solving the above-mentioned problem, in a container having an inlet for injecting liquid into the container and a spout for pouring liquid from the container, the mouth of the container is detachable from the mouth of the container. The inside plug for the container is composed of a mounting part to be mounted and a pipe that is fixed to the mounting part, one end is located at the mouth of the mouth part, and the other end is bent and extended to the inner surface side of the container. To do.

  A second aspect of the present invention for solving the above-mentioned problem is characterized in that, in the first aspect, the mounting portion is provided with a knob portion protruding outward from the mouth portion.

  A third aspect of the present invention for solving the above-mentioned problems is characterized in that, in the second aspect, the knob portion is provided on the pipe fixing side.

  According to a fourth aspect of the present invention for solving the above-mentioned problems, a container having a common mouth part for an inlet for injecting liquid into the container and a spout for pouring the liquid from the container. A pipe which is bent and extended on the inner peripheral side is provided, or an air vent hole partitioned by an air vent partition wall is formed along the inner peripheral side of the container.

  In the case of claim 1, since the other end of the pipe is bent toward the inner surface side of the container, when the mounting portion of the inner plug is mounted on the inner surface of the mouth portion of the container, the other end of the pipe is on the inner surface side of the container. To grow. In the case of claim 4, a pipe that is bent and extended from the mouth of the container to the inner peripheral side of the container is provided, or an air vent hole that is partitioned by an air vent partition wall is formed along the inner peripheral side of the container Has been. Therefore, if the container is tilted with the pipe side or air vent hole facing up to pour the liquid in the PET bottle, the other end of the pipe or air vent hole will immediately face upward, and it will accumulate on the mouth side. The moving air spreads and moves to the part. Thus, the outside air communicates with the air in the container through the pipe or the air vent hole, and external air flows into the container through the pipe or the air vent hole when the liquid flows out from the mouth. Thus, an air flow is generated through the pipe or the air vent hole, and the liquid flowing from the mouth portion flows smoothly without shaking back and forth.

  An embodiment of an inner stopper for a plastic container according to the present invention will be described with reference to FIGS. An inner plug 20 shown in FIG. 1 is detachably attached to the inner surface of the mouth 11 of the plastic bottle 10 shown in FIGS. The inner plug 20 has a mounting portion 21 that is inserted into the inner surface of the mouth portion 11, and a collar portion 22 that contacts the end surface of the mouth portion 11 is formed on the upper surface of the mounting portion 21. A knob portion 23 is formed on the upper surface of the collar portion 22 so as to extend upward. A pipe support 24 is formed in the mounting portion 21, and a pipe 25 is fixed to the pipe support 24. One end of the pipe 25 is located at the mouth portion of the mouth portion 11, and the other end is bent toward the inner surface of the spreading portion 12 of the plastic bottle 10. The inner plug 20 having such a configuration is integrally formed of a resin material.

  Next, the operation will be described. As shown in FIG. 2, when the mounting portion 21 of the inner stopper 20 is attached to the inner surface of the mouth portion 11 of the plastic bottle 10, the tip portion 26 of the pipe 25 of the inner stopper 20 is placed on the inner surface of the expanding portion 12 of the plastic bottle 10. To position. Therefore, when pouring the liquid in the plastic bottle 10, if the mouth part 11 is tilted with the pipe 25 side up, the tip part 26 immediately faces upward, and the air accumulated on the mouth part 11 side. Moves to the spreading portion 12. Thereby, the outside air communicates with the air in the PET bottle 10 through the pipe 25, and external air flows into the PET bottle 10 through the pipe 25 when the liquid flows out from the mouth portion 11.

  Thus, since the pipe 25 is bent to the inner surface side of the PET bottle 10, when the pipe 25 side is turned up, the tip portion 26 of the pipe 25 is already above the mouth 11 side of the pipe 25. . For this reason, when air already exists at the tip portion 26 of the pipe 25, the outside air communicates with the air in the PET bottle 10 through the pipe 25. Further, even when there is no air in the tip portion 26 of the pipe 25 in advance, the air accumulated on the mouth 11 side rises and immediately moves to the tip portion 26 of the pipe 25, so that outside air and the PET bottle 10 are passed through the pipe 25. The air inside communicates. Thereby, an air flow is generated through the pipe 25, and the liquid flowing from the mouth portion 11 flows smoothly without shaking back and forth.

  In addition, although the knob part 23 does not need to be provided, there exists the following advantage when this knob part 23 is provided. By pulling up the knob portion 23, the inner stopper 20 can be easily removed from the plastic bottle 10. Further, by providing the knob portion 23 on the attachment side of the pipe 25, when the liquid is poured from the plastic bottle 10, the knob portion 23 serves as a mark for making the plastic bottle 10 upward. Of course, when the knob portion 23 is not provided, there is no problem in tightening the cap on the screw portion 15 even when the inner stopper 20 is attached to the plastic bottle 10. However, even when the knob portion 23 is provided, when the cap is tightened to the screw portion 15 by forming the knob portion 23 with a flexible and elastic material, the knob portion 23 falls inward so that the cap is closed. be able to.

  Moreover, although the front-end | tip part 26 of the pipe 25 was formed so that it might be located in the inner surface of the expansion part 12 of the PET bottle 10, you may extend to the inner surface of the trunk | drum 13, and the trunk | drum 13 and bottom 14 shown in FIG. You may extend to the border.

  FIG. 3 shows an embodiment of the plastic bottle of the present invention. In the embodiment, the inner stopper 20 is detachably provided on the plastic bottle 10. In the present embodiment, the same function as that of the inner stopper 20 is provided in the plastic bottle 10 itself. An air vent partition wall 31 is provided integrally with the PET bottle 10 on the inner peripheral portion of the mouth portion 11 so as to form an air vent hole 30 along the spread portion 12 of the PET bottle 10 from the mouth of the mouth portion 11. ing.

  Therefore, also in this embodiment, when pouring the liquid in the plastic bottle 10, if the mouth part 11 is inclined with the air vent hole 30 side up, the tip 32 of the air vent hole 30 immediately goes up. The air accumulated in the mouth portion 11 side moves to the spread portion 12. Thereby, the outside air communicates with the air in the PET bottle 10 through the air vent hole 30, and external air flows into the PET bottle 10 through the air vent hole 30 when the liquid flows out from the mouth portion 11. Thus, an air flow is generated through the air vent hole 30, and the liquid flowing from the mouth portion 11 flows smoothly without shaking back and forth.

  FIG. 4 shows another embodiment of the plastic bottle of the present invention. In the embodiment, the air vent hole 30 is formed on the inner surface of the mouth portion 11, but in the present embodiment, the air vent hole 30 is formed on the outer peripheral portion of the mouth portion 11. By the way, since the outer diameter of the screw portion 15 is defined to be constant regardless of the size of the PET bottle 10, it is inevitable that the spout diameter of the mouth portion 11 is slightly reduced in this embodiment. It goes without saying that even if formed in this way, the same effects as those of the above embodiment can be obtained.

In the above embodiment, the case where the present invention is applied to a plastic bottle has been described.
A liquid inlet and spout are shared, and the mouth is smaller than the outer diameter of the container, for example, a bottle containing liquor other than a plastic container such as a plastic bottle, an 18-liter can containing soy sauce, an oil can, a plastic tank It can also be applied to aluminum cans. For example, oil cans and aluminum cans have a substantially flat upper surface. Therefore, in the case of these containers, a pipe made of a metal that is bent and extended from the mouth portion of the container to the inner peripheral side of the container is welded to the mouth portion, or air is provided along the inner peripheral side of the container. An air vent hole partitioned by a partition wall is formed.

1 shows an embodiment of an inner stopper for a container of the present invention, wherein (a) is a front view and (b) is a plan view. It is principal part sectional drawing of the PET bottle equipped with the inside stopper for containers of FIG. The principal part of one Embodiment of the container of this invention is shown, (a) is sectional drawing, (b) is a top view. The principal part of other embodiment of the container of this invention is shown, (a) is sectional drawing, (b) is a top view. It is a front view of a plastic bottle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Plastic bottle 11 Mouth part 12 Spreading part 13 Trunk part 15 Screw part 20 Inner plug 21 Mounting part 22 Collar part 23 Knob part 24 Pipe support part 25 Pipe 30 Air vent hole 31 Air vent partition wall

Claims (4)

  In a container having a common mouth part for an inlet for injecting liquid into the container and a spout for pouring liquid from the container, a mounting part detachably attached to the mouth part of the container, and one end fixed to the mounting part An inner stopper for a container, comprising: a pipe that is located at the mouth of the mouth and the other end is bent and extended toward the inner surface of the container.   The container stopper according to claim 1, wherein the mounting portion is provided with a knob portion that protrudes outward from the mouth portion.   The container stopper according to claim 2, wherein the knob portion is provided on the pipe fixing side.   In a container having a common mouth part for an inlet for injecting liquid into the container and a spout for pouring liquid from the container, a pipe which is bent and extended from the mouth part of the container to the inner peripheral side of the container is provided, or the container An air vent hole partitioned by an air vent partition wall is formed along the inner peripheral side of the container.

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