JP2016033026A - Squeeze discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a squeeze discharge container in which content liquid can be mixed stably with air even at the initial stage of discharge and the content liquid can be discharged while keeping the desired discharge condition from the initial stage of discharge.SOLUTION: Provided is a squeeze discharge container 1 which comprises a container body 2 that is formed as squeeze-deformable and inside that content liquid W is housed, an air supply pipe 3 extending from a mouth part 10 of the container body to the bottom part 13 of the container body, a stopper body 4 that is fitted to the mouth part so as to cover the mouth part of the container body and in that a communication hole 26 communicating with the inside of the container body and an air hole 25 communicating with the inside of the air supply pipe are formed at a top wall part 20 covering the mouth part, and a cap body 5 that is fitted to the mouth part of the container body so as to cover the stopper body and in that a discharge hole 34 is formed, and in which a residence space S for the content liquid flowing from the container body side to the discharge hole to reside is configured between the top wall part of the stopper body and the cap body.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a squeeze discharge container.

As a squeeze discharge container, for example, a discharge container that can discharge in a mist state by mixing a content liquid with air is known (see Patent Document 1).
The discharge container contains a content liquid and can be squeezed and deformed, a top-shaped cylindrical first plug member attached to the mouth of the container body, and a first plug member. A pipe that reaches the bottom, and a second tubular stopper member that is attached to the first stopper member so as to cover the first stopper member.
A communication hole communicating with the inside of the container main body and an air hole communicating with the inside of the pipe are formed in the top wall portion of the first plug member. A spray hole is formed in the top wall of the second plug member at a position facing the air hole.

  Since the container body is squeezed while the mouth of the container body is directed downward, the liquid content passes through the communication hole, and the air in the container body passes through the pipe to form the air hole. pass. Thereby, a content liquid can be mixed with air and it can be made to discharge in a mist form from a spray hole.

Japanese Utility Model Publication No. 48-102612

However, when the container body is turned from an upright position to an inverted position, for example, when the mouth of the container body is directed downward, the content liquid may enter the pipe. The content liquid that has entered the inside passes through the air holes. Then, the content liquid that has passed through the air holes is directly discharged to the outside through the spray holes formed at positions facing the air holes without being mixed with air.
Therefore, at the initial stage of discharge, the content liquid cannot be discharged in the form of a mist, and only the content liquid may be discharged in a linear form.

  The present invention has been made in view of such circumstances, and its object is to stably mix the content liquid with air even in the initial stage of discharge, and it is desired from the initial stage of discharge. It is to provide a squeeze discharge container capable of discharging the content liquid while maintaining the discharge state.

In order to achieve the above object, the present invention provides the following means.
(1) A squeeze discharge container according to the present invention is squeezable and is squeezable, a container main body in which content liquid is accommodated, a container main body disposed inside the container main body, and the container main body from the mouth side of the container main body An air supply pipe extending toward the bottom of the container body, a communication hole that is attached to the mouth part so as to cover the mouth part of the container body, and communicates with the inside of the container body on the top wall part covering the mouth part, And a plug body in which an air hole communicating with the air supply pipe is formed, and a cap body that is attached to the mouth portion of the container body so as to cover the plug body and in which a discharge hole is formed, A retention space for retaining the content liquid flowing from the container main body side toward the discharge hole is defined between the top wall portion of the stopper and the cap body.

  According to the squeeze discharge container according to the present invention, the container body can be squeezed while the mouth of the container body is directed downward, so that the content liquid can be supplied into the retention space through the communication hole, and the air supply pipe and the air hole The air in the container body can be supplied to the staying space through. Then, since the content liquid stays in the staying space and reaches the discharge hole, it is surely mixed with air (gas-liquid mixing) in the staying space before reaching the discharge hole. Therefore, the content liquid in a state of being mixed with air can be discharged to the outside through the discharge hole, and the content liquid can be discharged in a desired discharge state such as a mist or foam.

Further, when the content liquid enters the air supply pipe when the opening of the container body is directed downward, the entered content liquid is supplied into the staying space through the air hole. Even in this case, the content liquid supplied through the air hole reaches the discharge hole after staying in the staying space while joining the content liquid supplied through the communication hole. Therefore, before these content liquids reach the discharge holes, these content liquids and the air supplied after the entered content liquids have escaped from the air supply pipe can be reliably mixed in the retention space. .
Therefore, even when the content liquid enters the air supply pipe, the content liquid mixed with air can be discharged to the outside through the discharge hole. That is, the content liquid can be discharged in a desired discharge state even at the initial stage of discharge.

(2) The cap body may be formed with a surrounding cylinder that protrudes toward the staying space and surrounds the discharge hole.

  In this case, since the content liquid can be discharged to the outside through the discharge hole after the content liquid gets over the surrounding cylinder, the content that has been supplied from the inside of the container body into the staying space through the communication hole (in some cases, the air hole) The liquid can be prevented from flowing directly into the discharge hole. Thereby, the time until the content liquid is discharged can be gained, and the content liquid can be retained in the retention space for a long time. Therefore, the content liquid and air can be mixed more reliably in the staying space.

(3) The said discharge hole may oppose the wall part which avoided the said communicating hole and the said air hole among the said top wall parts.

  In this case, since the discharge hole is not opposed to either the communication hole or the air hole, the content liquid supplied into the retention space through the communication hole reaches the discharge hole directly or enters the air supply pipe. When the content liquid is supplied into the stay space through the air holes, it does not reach the discharge holes directly. Therefore, the time until the content liquid is discharged can be gained, and the content liquid can be retained in the retention space for a long time. Therefore, the content liquid and air can be mixed more reliably in the staying space.

  According to the squeeze discharge container of the present invention, the content liquid can be stably mixed with air even at the initial stage of discharge, and the content liquid can be discharged while maintaining a desired discharge state from the initial stage of discharge. can do.

It is a longitudinal cross-sectional view which shows embodiment of the squeeze discharge container which concerns on this invention. FIG. 2 is a diagram illustrating a state in which the container body is squeezed and the content liquid is discharged in a state in which the opening of the container body is directed downward after the lid is opened from the state illustrated in FIG. 1. It is a figure which shows the state in which the content liquid has entered into the air supply pipe in the initial stage of discharge shown in FIG. It is a figure which shows the modification of the squeeze discharge container shown in FIG. FIG. 5 is a view showing a state in which the container body is squeezed and the content liquid is discharged in a state where the container body is opened downward after the lid is opened from the state shown in FIG. 4.

Hereinafter, an embodiment of a squeeze discharge container according to the present invention will be described with reference to the drawings.
(Configuration of squeeze discharge container)
As shown in FIG. 1, the squeeze discharge container 1 of the present embodiment includes a bottomed cylindrical container body 2 in which the content liquid W is accommodated, and an air supply pipe 3 disposed inside the container body 2. The cap body 4 attached to the container body 2 so as to cover the mouth portion 10 of the container body 2, and the top cylindrical cap body 5 attached to the mouth portion 10 of the container body 2 so as to cover the stopper body 4. And.

  In addition, the container main body 2 and the cap body 5 are arrange | positioned in the state in which each central axis was located on the common axis. In the present embodiment, this common axis is referred to as a container axis O, the cap body 5 side along the container axis O is referred to as the upper side, and the opposite side is referred to as the lower side. Further, in a plan view viewed from the container axis O direction, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

  The container body 2 is a synthetic resin container formed by blow molding a preform formed into a bottomed cylindrical shape by injection molding, for example, and includes a mouth portion 10, a shoulder portion 11, a trunk portion 12, and a bottom portion 13. It has. The mouth portion 10, the shoulder portion 11, the body portion 12, and the bottom portion 13 are connected in this order from the top to the bottom, and the cross-sectional view orthogonal to the container axis O is, for example, circular. .

  The body portion 12 can be squeezed and deformed radially inward. A bulging portion 14 that bulges in a dome shape is formed at the center of the bottom portion 13 upward (toward the inside of the container). The bulging portion 14 serves to keep the lower end portion 3 b of the air supply pipe 3 at a position close to the outer peripheral edge side of the bottom portion 13.

  The plug body 4 is provided with a top wall portion 20 that covers the mouth portion 10 of the container body 2, and projects downward from the top wall portion 20, and is fitted in the mouth portion 10 of the container body 2, for example, in a liquid-tight manner. And a seal cylinder 21. The top wall portion 20 is formed in a circular shape in plan view, and the outer peripheral edge portion is disposed on the opening edge of the mouth portion 10 of the container body 2. Thereby, the plug body 4 is attached to the mouth portion 10 in a state of being overlapped on the mouth portion 10 of the container body 2.

  A holding cylinder 22 that holds the upper end 3a of the air supply pipe 3 protrudes downward at the center of the top wall 20 and a top-like cylindrical protruding cylinder 23 protrudes upward. It is installed. The holding cylinder 22 and the protruding cylinder 23 are arranged coaxially with the container axis O and communicate with each other through a through hole 24 formed in the top wall portion 20.

  The holding cylinder 22 is formed in a cylindrical shape whose inner diameter is larger than the inner diameter of the through hole 24. The protruding cylinder 23 includes a peripheral wall 23a having an inner diameter equal to the inner diameter of the through hole 24, and a top wall 23b connected to the upper end of the peripheral wall 23a. An air hole 25 communicating with the inside of the air supply pipe 3 through the through hole 24 is formed in the peripheral wall 23a.

In the illustrated example, the air hole 25 has a vertically long slit shape extending over the entire length of the peripheral wall 23a and is formed to open downward. A plurality of air holes 25 are formed in the peripheral wall 23a, and are arranged at intervals in the circumferential direction.
However, the shape of the air hole 25 may not be a slit shape, and may be formed in a circular shape in a side view, for example. The number of air holes 25 may be one. In this case, it is preferable to form the air holes 25 so as to be located on the opposite side in the radial direction from a hinge portion 39 to be described later with the container shaft O interposed therebetween.

  The air supply pipe 3 is a long pipe extending from the mouth 10 side of the container main body 2 toward the bottom 13 of the container main body 2, and the upper end 3 a is inserted into the holding cylinder 22 to be fitted and held. Yes. Thus, the air supply pipe 3 is connected to the plug body 4 and communicates with the air hole 25 through the through hole 24.

The lower end portion 3b of the air supply pipe 3 reaches the bottom portion 13 of the container body 2, and is positioned so as to stay at a position close to the outer peripheral edge side of the bottom portion 13 by a bulging portion 14 formed on the bottom portion 13. Yes. Thereby, when the mouth 10 of the container body 2 is directed obliquely downward (see FIG. 2), the lower end 3b of the air supply pipe 3 is located in a portion where the air in the container body 2 is likely to gather. It becomes easy to smoothly introduce the air in the container body 2 into the air supply pipe 3.
Moreover, in the illustrated example, the air supply pipe 3 is attached such that the position of the lower end portion 3b is the same in the circumferential direction with respect to a hinge portion 39 described later. This makes it possible to smoothly introduce the air in the container body 2 into the air supply pipe 3 when the mouth portion 10 of the container body 2 is tilted downward with the hinge portion 39 facing upward. .

  In addition, a communication hole 26 that communicates with the inside of the container body 2 is formed in the top wall portion 20 at a portion located between the seal cylinder 21 and the protruding cylinder 23 in which the air holes 25 are formed. In the example shown in the drawing, the communication hole 26 is formed in a circular shape in plan view, and is disposed at a portion located on the opposite side to a hinge portion 39 described later with the container shaft O interposed therebetween. Moreover, the communication hole 26 has an opening area smaller than the opening area of the air hole 25. Thus, the amount of air passing through the air hole 25 is made larger than the amount of the content liquid W passing through the communication hole 26.

  The cap body 5 is screwed into the mouth portion 10 of the container body 2 to cover the stopper body 4. The cap body 30 has a top tube shape and is connected to the cap body 30 via a hinge portion 39. A lid 40.

The cap body 30 is a peripheral wall cylinder 31 that is screwed into the mouth portion 10 of the container body 2, and the top wall portion that is located above the plug body 4 and is disposed at a certain distance from the plug body 4. 32, and a shoulder wall portion 33 that connects the upper end portion of the peripheral wall cylinder 31 and the outer peripheral edge portion of the top wall portion 32.
In the illustrated example, the case where the cap body 5 is screwed to the mouth portion 10 of the container body 2 is taken as an example. However, the cap body 5 is not limited to screwing and is attached by, for example, undercut fitting. It doesn't matter.

The top wall portion 32 is formed in a circular shape in plan view that is smaller in diameter than the inner diameter of the mouth portion 10 of the container body 2, and is arranged so that the center thereof coincides with the container axis O. The shoulder wall portion 33 is formed so as to be gradually reduced in diameter from the upper end portion of the peripheral wall cylinder 31 toward the outer peripheral edge portion of the top wall portion 32 and to be recessed toward the radially inner side.
A discharge hole 34 for discharging the content liquid W is formed at the center of the top wall portion 32. In the example shown in the drawing, the discharge hole 34 is formed in a circular shape in a plan view, and has a smaller diameter than the communication hole 26.

  Between the top wall portion 32 and the shoulder wall portion 33 of the cap body 30 configured as described above and the top wall portion 20 of the plug body 4, the content liquid W flowing from the container body 2 side toward the discharge hole 34. A retention space S for retaining the water is defined. As a result, the content liquid W once stays in the stay space S and is then discharged to the outside through the discharge holes 34.

  Further, the discharge hole 34 is opposed to the top wall 23b of the protruding cylinder 23 formed in the top wall portion 20 of the plug body 4 in the container axis O direction. That is, the discharge hole 34 faces the wall portion of the top wall portion 20 of the plug body 4 that avoids the communication hole 26 and the air hole 25. Since the discharge hole 34, the communication hole 26, and the air hole 25 are formed in such a positional relationship, the content liquid W is easily retained in the retention space S. This point will be described later.

  Furthermore, a surrounding cylinder 35 that protrudes toward the staying space S (downward) and surrounds the discharge hole 34 is formed on the top wall portion 32 of the cap body 30. At this time, the surrounding cylinder 35 protrudes downward to such an extent that a slight space is secured between the lower end portion of the surrounding cylinder 35 and the top wall 23b of the protruding cylinder 23. By forming the surrounding cylinder 35, the content liquid W is easily retained in the retention space S. This point will also be described later.

  Further, the shoulder wall portion 33 is formed so as to protrude further upward than the top wall portion 32. A portion of the shoulder wall portion 33 that protrudes upward from the top wall portion 32 functions as the discharge tube portion 36. Thereby, the content liquid W discharged from the discharge hole 34 is discharged outside after passing through the discharge cylinder portion 36.

  In the illustrated example, a foaming member 37 that foams the content liquid W discharged from the discharge hole 34 is mounted in the discharge cylinder portion 36. The foam member 37 includes, for example, a ring portion 37a fitted inside the discharge cylinder portion 36, and a mesh member (net) 37b having a predetermined mesh and stretched at the upper end opening end of the ring portion 37a. I have.

  The lid body 40 is a member that covers the plug body 4 so as to be openable and closable. The lid body 40 is formed of a peripheral wall cylinder 41 and a top wall portion 42 in a top-like cylinder shape. The peripheral wall cylinder 41 is connected to the peripheral wall cylinder 31 of the cap body 30 via a hinge part 39. In the peripheral wall cylinder 41, a pull-up protrusion 43 that protrudes outward in the radial direction is formed at a portion located on the opposite side of the radial direction from the portion to which the hinge portion 39 is connected across the container axis O. ing. Using the pull-up protrusion 43, the lid 40 can be easily opened and closed.

  Note that the lower end portion of the peripheral wall cylinder 41 in the lid body 40 is in contact with an annular step portion 38 formed at a connection portion between the peripheral wall cylinder 31 and the shoulder wall portion 33 of the cap body 30. Thereby, the lid body 40 is stably combined with the cap body 30.

An engagement cylinder 45 that engages with the discharge cylinder portion 36 of the cap main body 30 projects downward from the central portion of the top wall portion 42. Thereby, it is suppressed that the cover body 40 opens unexpectedly.
In addition, an annular seal protrusion 46 that protrudes from the top wall portion 42 toward the upper end opening end of the discharge tube portion 36 and contacts the upper end opening end from above is formed inside the engagement tube 45. The seal protrusion 46 prevents the mesh member 37b from coming into contact with the top wall portion 42 of the lid 40 and prevents the content liquid W from leaking.

(Operation of squeeze discharge container)
Next, the use of the squeeze discharge container 1 configured as described above will be described.
When discharging the content liquid W, first, the lid 40 is rotated around the hinge portion 39 using the pull-up protrusion 43 to open the lid 40 with respect to the cap body 30. Next, as shown in FIG. 2, the container body 2 is tilted so that the mouth part 10 of the container body 2 faces obliquely downward from the upright posture in which the mouth part 10 of the container body 2 faces upward. At this time, the mouth portion 10 of the container body 2 is directed obliquely downward with the hinge portion 39 positioned upward. And in this state, the trunk | drum 12 of the container main body 2 is pressed and squeezed and deformed.

  By squeezing the body portion 12 of the container body 2, the internal pressure of the container body 2 increases, so that the content liquid W can be supplied from the container body 2 into the staying space S through the communication hole 26. 2, the air in the container main body 2 can be supplied from the container main body 2 into the staying space S through the air supply pipe 3 and the air hole 25. Then, since the content liquid W reaches the discharge hole 34 after staying in the stay space S, the content liquid W is reliably mixed with air (gas-liquid mixture) in the stay space S until reaching the discharge hole 34. Become.

In particular, since the discharge hole 34 and the communication hole 26 do not oppose each other in the container axis O direction, the content liquid W supplied into the stay space S through the communication hole 26 does not reach the discharge hole 34 directly. After flowing through the wall 33, it reaches the discharge hole 34. Therefore, it is possible to earn time until the content liquid W is discharged, and the content liquid W can be retained in the retention space S for a long time. Moreover, since the surrounding cylinder 35 is formed, the content liquid W reaches the discharge hole 34 after getting over the surrounding cylinder 35. Therefore, it is possible to further increase the time until the content liquid W is discharged through the discharge hole 34, and the content liquid W can be retained in the retention space S for a long time.
By these things, the content liquid W and air can be mixed more reliably in the residence space S.

Then, the content liquid W mixed with air in the stay space S can be discharged into the discharge cylinder portion 36 through the discharge hole 34, and by passing through the mesh member 37b of the foam member 37, for example, a fine predetermined Can be foamed. As a result, the content liquid W can be discharged to the outside in a foamy state.
In particular, since the opening area of the air hole 25 is larger than the opening area of the communication hole 26, the amount of air supplied is larger than the amount of the content liquid W supplied into the staying space S. The content liquid W and the air can be mixed while containing a large amount of air with respect to the content liquid W (increasing the ratio of the air), and it is easy to form a foam.

By the way, in discharging the content liquid W described above, when the content liquid W enters the air supply pipe 3 as shown in FIG. 3 when the mouth portion 10 of the container body 2 is directed obliquely downward, The entered content liquid W is supplied into the stay space S through the air holes 25.
However, even in this case, the content liquid W supplied through the air hole 25 merges with the content liquid W supplied through the communication hole 26 while flowing through the shoulder wall portion 33 and stays in the stay space S. The discharge hole 34 is reached later. Accordingly, the content liquid W and the air supplied after the content liquid W has escaped from the air supply pipe 3 are reliably mixed in the stay space S until the content liquid W reaches the discharge hole 34. Can be made.

Therefore, even when the content liquid W enters the air supply pipe 3, the content liquid W in a state of being mixed with air can be discharged through the discharge hole 34, and then discharged to the outside in a foamed state. Can do. That is, the content liquid W can be discharged in a desired discharge state (bubble state) even at the initial stage of discharge.
In particular, since the air hole 25 is formed in the peripheral wall 23a of the discharge cylinder, the air hole 25 and the discharge hole 34 do not face the container axis O direction. Therefore, when the content liquid W that has entered the air supply pipe 3 is supplied into the stay space S through the air holes 25, it does not reach the discharge holes 34 directly. Therefore, even in this case, the content liquid W can be retained in the retention space S for a long time, and the content liquid W and air can be reliably mixed in the retention space S.

As described above, according to the squeeze discharge container 1 of the present embodiment, the content liquid W can be stably mixed with air even at the initial stage of discharge, and a desired discharge state can be obtained from the initial stage of discharge. The content liquid W can be discharged while maintaining the (bubble state).
When the squeeze deformation is released after the content liquid W is discharged, the body 12 of the container body 2 is restored and deformed to return to the original state. At that time, since the inside of the container main body 2 is made negative pressure, with the restoring deformation of the body portion 12, air is taken in from the outside through the discharge hole 34 and the air supply pipe 3 or the communication hole 26, so Can be sucked in.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, the content liquid W is discharged in a state where the mouth portion 10 of the container body 2 is directed obliquely downward, but in a state where the mouth portion 10 of the container body 2 is directed directly downward (a state where the container body 2 is in an inverted posture). The body portion 12 of the container body 2 may be squeezed to discharge the content liquid W.

  Moreover, although the case where the content liquid W was discharged in the form of foam by providing the foaming member 37 was given as an example, the foaming member 37 is not essential and may not be provided. In this case, when the content liquid W mixed with air in the stay space S is discharged from the discharge hole 34, it can be discharged to the outside in a mist state. Furthermore, when the content liquid is discharged in the form of a mist, it is preferable to provide a nozzle tip instead of the foaming member 37. By doing in this way, it is possible to discharge a finer fine mist content liquid. In addition, as a nozzle chip, you may employ | adopt a well-known thing, for example.

Moreover, in the said embodiment, although the plug body 4 was comprised so that the protrusion cylinder 23 and the holding cylinder 22 might become coaxial with the container axis | shaft O, it is not limited to this case.
For example, as shown in FIGS. 4 and 5, the protruding cylinder 23 and the holding cylinder 22 may be formed at a position eccentric with respect to the container axis O. In this case, the top wall 23b of the protruding cylinder 23 may be omitted, and the upper opening of the peripheral wall 23a may function as the air hole 25. Even in this case, since the discharge hole 34 and the air hole 25 do not oppose each other in the container axis O direction, the same effect can be achieved.

  In the case where the protruding cylinder 23 and the holding cylinder 22 are formed at positions eccentric from the container axis O, the protruding cylinder 23 and the holding cylinder 22 are preferably formed closer to the hinge portion 39 than the container axis O. In this manner, as shown in FIG. 5, the staying space can be obtained by squeezing the body portion 12 while the mouth portion 10 of the container body 2 is directed obliquely downward with the hinge portion 39 facing upward. It becomes easy to efficiently mix the content liquid W and air in S.

W ... Contents liquid S ... Residence space 1 ... Squeeze discharge container 2 ... Container body 3 ... Air supply pipe 4 ... Plug body 5 ... Cap body 10 ... Mouth part of container body 13 ... Bottom part of container body 20 ... Top wall of plug body Portion 25 ... Air hole 26 ... Communication hole 34 ... Discharge hole 35 ... Go cylinder

Claims (3)

A squeeze-deformable container body in which the content liquid is stored;
An air supply pipe disposed inside the container body and extending from the mouth side of the container body toward the bottom of the container body;
A communication hole that is attached to the mouth portion so as to cover the mouth portion of the container body and that communicates with the interior of the container body, and an air hole that communicates with the air supply pipe. A plug body formed with,
A cap body that is attached to the mouth of the container body so as to cover the stopper body, and has a discharge hole formed therein,
A squeeze space is defined between the top wall portion of the stopper and the cap body to retain the content liquid flowing from the container main body side toward the discharge hole. Discharge container. In the squeeze discharge container according to claim 1,
The squeeze discharge container characterized in that the cap body is formed with a surrounding cylinder that protrudes toward the staying space and surrounds the discharge hole. In the squeeze discharge container according to claim 1 or 2,
The squeeze discharge container, wherein the discharge hole is opposed to a wall portion avoiding the communication hole and the air hole in the top wall portion.

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