JP4987446B2 - Depressurized deformation prevention container - Google Patents

Description

  The present invention relates to a container, and more particularly to a reduced pressure deformation preventing container that prevents deformation of the container against reduced pressure in the container.

As a packaging container for stably storing limonene-containing articles, a laminated film made of a resin excellent in aroma retention and gas barrier properties is formed into a bag-like container, or molded using a sheet or film Obtaining a tube, a bottle, etc. is conventionally known (for example, refer patent document 1).
JP 2006-282638 A

  However, in the case of a PET bottle, there is a problem that the gas barrier property with respect to the limonene-containing article is insufficient, and the bottle body portion is deformed by decompression when used for a long time.

  An object of the present invention is to solve the above-described problems, and to prevent the inside of the container from being depressurized and deformed when the contents are permeated through the body wall of the container and discharged. The purpose is to provide.

In order to solve the above-mentioned problems, the present invention is made of a synthetic resin with insufficient gas barrier properties, which has a mouth tube part and a neck part as a decompression deformation prevention container, and allows the vaporized gas of the limonene-containing article to permeate and release from the wall surface . The neck is formed with a notch wall portion formed by cutting out a flat portion at a part of the circumference, and an opening is formed in the center of the flat portion of the notch wall portion in the lateral direction. A valve member is mounted on the valve engagement cylinder, and when the inside of the container is depressurized by the permeation and release of vaporized gas from the container wall surface, the valve member sucks outside air into the container. And the structure characterized by preventing the deformation | transformation by pressure reduction is employ | adopted.

Another example of a container for preventing deformation under reduced pressure is a container in which a valve joint is attached to the mouth tube portion of a container body made of a synthetic resin with insufficient gas barrier properties so that the vaporized gas of a limonene-containing article permeates and discharges from the wall surface. The valve joint includes an engagement tube portion that engages with the mouth tube portion of the container body, a neck tube portion, and a mouth tube portion to which the mounting cap is screwed. An engagement wall is provided with a valve engagement tube projecting from the portion in the lateral direction, and an engagement hole opened in the neck tube portion in the center at the inner end of the inner periphery of the valve engagement tube And a valve member is attached to the valve engaging cylinder, and when the inside of the container is depressurized by the permeation and release of the vaporized gas of the contents from the container body wall surface , the outside air is sucked into the container by the valve member. The configuration is adopted.

  As an example of the valve member, the valve member includes a valve formed of a flexible material and a valve presser that attaches the valve member to the valve engagement tube. The valve presser is attached to the valve engagement tube. A configuration characterized by comprising an engagement cylinder and a valve support cylinder in which an air hole is bored is adopted.

  By attaching a valve member that sucks outside air into the container body or joint, components such as limonene contained in the liquid will permeate through the container wall and release outside the container over time. However, since the outside air can be sucked into the container by the valve member, the internal pressure can be made constant and the deformation of the container due to the decompression can be prevented.

  Next, the container of the present invention will be described with examples.

  In FIG. 1, A is a container body, B is a valve member attached to the neck of the container body A, C is a mounting cap that is screwed onto the mouth tube portion of the container body A, and D is a container body A via the mounting cap C. It is a liquid ejector to be attached to.

As shown in FIGS. 1 and 2, the container body A includes a mouth tube portion 1, a neck portion 2, and a body portion 3, and a screw 4 is screwed on the mouth tube portion 1.
The neck portion 2 is formed with a notched wall portion 5 formed by notching the flat portion 5a at a part of the circumference.

In the center of the flat surface portion 5a of the notch wall portion 5, a valve engagement cylinder 7 for mounting a valve member B having an opening 6 formed in the lateral direction is disposed.
An engagement protrusion 8 is provided on the outer periphery of the valve engagement cylinder 7.

The valve member B is mounted on a valve B1 formed of a soft material such as rubber or elastomer, or a flexible synthetic resin, and the valve engaging cylinder 7 of the neck 2 of the container body A while mounting the B1. It consists of a valve presser B2.
The valve B <b> 1 is formed with a valve cylinder 10, a flange 11 connected to one end of the valve cylinder 10, and a valve portion 12 inclined inward on the opposite side of the flange 11 of the valve cylinder 10.

  The valve retainer B2 includes a retainer wall 15 and an engagement tube 16 whose inner periphery engages with the outer periphery of the valve engagement tube 7 of the neck 2 of the container body A. An engagement portion 17 that engages with the engagement protrusion 8 of the valve engagement cylinder 7 of the neck portion 2 is disposed.

  An air hole 18 is formed in the center of the holding wall 15, and the inner periphery of the air hole 18 is in sliding contact with the inner periphery of the valve portion 12 of the valve cylinder 10 of the valve B 1 via the connecting piece 19. A valve shaft cylinder 20 in which the valve 12 is operated is disposed.

  As shown in FIG. 1, the mounting cap C is configured such that a screw provided on the inner periphery of the side peripheral wall 25 and a screw 4 of the mouth tube portion 1 of the container main body A are screwed together to connect the mounting cap C and the liquid ejector D to the container. It is mounted on the upper part of the main body A, and detailed description is omitted.

  The liquid ejector D may be anything that pulls the trigger 26 so that the content liquid in the container main body A is sucked by the suction pipe 27 by the internal pump and ejected from the spray nozzle 28. When the liquid in the container is sucked up and the inside of the container is depressurized, a conventional sprayer that introduces air from the outside into the container may be used, and detailed description thereof is omitted.

Next, the function and effect of this embodiment will be described.
Inserting the outer peripheral tip of the valve stem 20 of the valve retainer B2 from the flange 11 side into the inner circumference of the valve barrel 10 of the valve B1, and sliding the valve stem 20 on the inner circumference of the valve portion 12 of the valve barrel 10, the valve B1 Is attached to the valve presser B2 to form a valve member B, and the valve member B is attached to the valve engaging cylinder 7 of the container main body A.

  By mounting the valve member B on the valve engaging cylinder 7, the flange 11 of the valve B1 is sandwiched between the bottom surface of the pressing wall 15 of the valve pressing B2 and the front end surface of the valve engaging cylinder 7, and the valve B1 is The slippage into the tube 7 is prevented.

  Next, after filling the container body A with a liquid containing a component that easily passes through, such as limonene, the liquid ejector D is attached to the mouth tube portion 1 of the container body A by the mounting cap C, and A liquid ejection container.

  Ingredients such as limonene contained in the content liquid vaporize over time, and pass through the wall of the container to be released outside the container, so that the inside of the container is depressurized. The valve portion 12 at the tip of the valve cylinder 10 of the valve B1 of the valve member B is deformed, and a gap is instantaneously formed between the valve holder 20 and the outer periphery of the valve stem cylinder 20 of the valve presser B2, and from the air hole 18 of the valve presser B2. The outside air can be sucked into the container through the opening 6 of the valve engaging cylinder 7 of the container main body A to keep the internal pressure in the container constant, and deformation of the container due to decompression can be prevented.

  In the above embodiment, the content liquid in the container main body A is ejected from the spray nozzle 28 by operating the trigger 26 of the liquid ejector D. However, as the container ejector of the present invention, for example, a push-down pump The configuration of the liquid ejector itself is not limited to the configuration of the above embodiment.

Further, instead of the liquid ejector D and the mounting cap C, a lid for screwing into the mouth tube portion 1 of the container main body A shown in FIG. You can also.
As a refill container, even if the liquid content of the component is vaporized over time and permeates the container, the outside air is sucked into the container by the valve member B even if the inside of the container becomes negative pressure. Can be prevented.

Next, a second embodiment in which a valve joint is mounted between the container body and the mounting cap in the first embodiment will be described.
Components similar to those of the first embodiment are illustrated with the same reference numerals, and the differences will be mainly described below.

In FIG. 3, E is a container body, F is a valve joint that is attached to the container body E, C is a mounting cap that is screwed to the valve joint F, and D is attached to the valve joint F via the mounting cap C. This is a liquid ejector.
The container main body E includes a mouth tube portion 30 and a body portion 31, and a screw 32 is screwed on the mouth tube portion.

  As shown in FIGS. 3 and 4, the valve joint F includes a joint F1, a valve B1 formed of a soft material such as rubber or elastomer, or a flexible synthetic resin, and a valve B1. It consists of a valve presser F2 attached to F1.

  The joint F1 includes a mouth tube portion 36 and a neck tube portion 37 in which a screw 35 is screwed on the outer periphery, a valve engagement tube 38 projecting laterally from a part of the outer periphery of the neck tube portion 37, and a neck tube An engagement tube portion 39 is provided at the lower end of the portion 37, and a screw 40 that is screwed into the mouth tube portion 30 of the container body E is screwed on the inner periphery of the engagement tube portion 39. Yes.

  The inner end of the inner periphery of the valve engaging cylinder 38 opens inward of the neck cylinder portion 37 at the center, and the distal ends of the valve B1 and the valve presser F2 are inserted inward of the neck cylinder portion 37. An engagement wall 42 having an engagement hole 41 is formed, and an engagement portion 43 is disposed outside the inner periphery.

The valve retainer F2 includes an engagement cylinder 45 whose outer periphery engages with the inner periphery of the valve engagement cylinder 38 of the joint F1, and a retainer having an air hole 46 formed in the center at the inner end of the inner periphery of the engagement cylinder 45. And a wall 47.
On the inner periphery of the air hole 46, the valve portion 12 of the valve B1 is operated via the connecting piece 48, and is inserted into the engagement hole 41 of the valve engagement cylinder 38 together with the tip of the valve B1. A valve shaft 49 is provided.
On the outer periphery of the engagement cylinder 45, an engagement protrusion 50 that engages with the engagement portion 43 on the inner periphery of the valve engagement cylinder 38 of the joint F1 is disposed.

Next, the function and effect of this embodiment will be described.
After inserting the outer periphery tip of the valve shaft 49 of the valve retainer F2 from the flange 11 side into the inner periphery of the valve cylinder 10 of the valve B1 and attaching the valve B1 to the valve retainer F2, the valve retainer F2 is placed in the valve engagement cylinder 38 of the joint F1. To the valve joint F.

  By mounting the valve presser F2 in the valve engagement cylinder 38 of the joint F1, the flange 11 of the valve B1 is sandwiched between the lower surface of the presser wall 47 of the valve presser F2 and the upper surface of the engagement wall 42 of the valve engagement cylinder 38. The valve B1 is prevented from slipping into the joint F1.

  Next, after the container body E is filled with a liquid containing a component that is easily vaporized through the container, such as limonene, the mouth tube portion 30 of the container body E and the engagement tube portion 39 of the valve joint F Then, the liquid ejector D is attached to the mouth tube portion 36 of the valve joint F by the mounting cap C to obtain the liquid ejection container of this embodiment.

  In the container of the present embodiment, when the inside of the container body E is depressurized due to vaporization of the content liquid, the valve part 12 at the tip of the valve cylinder 10 of the valve B1 of the valve part joint F is deformed, and the outer periphery of the valve shaft 49 of the valve presser F2 A gap is instantaneously formed between the air holes 46 of the valve presser F2 so that outside air can be sucked into the container from the joint F1 into the container and the internal pressure in the container can be kept constant, thereby preventing deformation of the container due to decompression. can do.

Further, instead of the liquid ejector D and the mounting cap C, a refillable container can be provided by attaching a lid that is screwed into the mouth tube portion 36 of the joint F1 shown in FIG. .
In addition, the same operational effects as the first embodiment can be obtained.

  In each of the above embodiments, the valve member is provided at the neck portion of the container main body, or the joint attached to the mouth tube portion. However, the valve member may be disposed at the trunk portion or the bottom portion of the container main body. It is not limited to the arrangement position.

  In each embodiment, the valve member is composed of a valve and a valve presser, and is attached to the valve engaging cylinder, and a valve having a flange on the valve presser cylinder 20 or valve shaft 49 of the valve presser is attached. However, the valve body may be covered with a valve support tube provided with air holes as a tube made of a soft material such as rubber or elastomer, and is not limited to the embodiment.

  Even if the inside of the container is depressurized due to components such as limonene contained in the contents liquid, the internal pressure inside the container can be kept constant by sucking outside air into the container with a valve provided on the container itself or a joint. As a container that can be prevented from being deformed even after being left for a certain period of time, a consumer can use it with confidence as a trigger-type liquid ejection container, a pump-type liquid container, or a refill container thereof.

It is a section elevation view of the decompression deformation prevention container of the 1st example of the present invention. It is explanatory drawing of the neck part of a container main body, (a) is a principal part perspective view, (b) is a top view of the XX line of FIG. It is a section elevation view of the decompression deformation prevention container of the 2nd example of the present invention. It is explanatory drawing of a valve part joint, (a) is a principal part perspective view, (b) is a top view of the XX line of FIG.

Explanation of symbols

A, E Container body B Valve member B1 Valve B2, F2 Valve retainer C Mounting cap D Liquid ejector F Valve joint F1 Joint 1, 30, 36 Mouth tube 2 Neck 3, 31 Body
4, 32, 35, 40 Screw 5 Notch wall portion 5a Planar portion 6 Opening 7, 38 Valve engagement cylinder 8, 50 Engagement protrusion 10 Valve cylinder 11 Flange 12 Valve portion 15, 47 Holding wall 16, 45 Engagement cylinder 17, 43 Engagement part 18, 46 Air hole 19, 48 Connecting piece 20 Valve shaft cylinder 25 Side wall 26 Trigger 27 Suction pipe 28 Spray nozzle 37 Neck cylinder part 39 Engagement cylinder part 41 Engagement hole 42 Engagement wall 49 Valve stem

Claims (3)

A container made of a synthetic resin with an insufficient gas barrier property that includes a mouth portion and a neck portion, and vaporized gas of a limonene-containing article permeates and discharges from a wall surface ,
The neck part is formed with a notch wall part formed by notching a flat part at a part of the circumference,
In the center of the flat portion of the notch wall portion, a valve engagement cylinder having an opening in the lateral direction is provided,
A valve member is mounted on the valve engaging cylinder;
A decompression-deformation prevention container characterized in that, when the inside of the container is depressurized by the permeation and release of vaporized gas from the container wall surface, outside air is sucked into the container by a valve member to prevent deformation due to decompression. A container in which a valve joint is attached to the mouth tube part of a synthetic resin container body having insufficient gas barrier properties such that the vaporized gas of the limonene-containing article permeates and discharges from the wall surface ,
The valve portion joint includes an engagement tube portion that engages with the mouth tube portion of the container body, a neck tube portion, and a mouth tube portion that screws the mounting cap.
The neck tube portion is provided with a valve engagement tube that protrudes laterally from a part of the outer periphery,
At the inner end of the inner periphery of the valve engagement cylinder, an engagement wall is provided with an engagement hole opened in the neck cylinder part in the center.
A valve member is mounted on the valve engaging cylinder;
A decompression-deformation prevention container, characterized in that, when the inside of the container is depressurized by the permeation and release of vaporized gas from the container body wall surface , the outside air is sucked into the container by the valve member. The valve member comprises a valve formed of a flexible material, and a valve presser that attaches the valve member to the valve engagement cylinder,
The reduced pressure deformation prevention container according to claim 1 or 2, wherein the valve retainer includes an engagement cylinder attached to the valve engagement cylinder and a valve support cylinder having air holes.

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