JP2021160765A - Foam discharge container - Google Patents

Abstract

To provide a foam discharge container capable of suppressing suck-back when compression of a container body is released.SOLUTION: A foam discharge container 10 comprises a container body 12 and a foam discharge cap 13. The foam discharge cap 13 comprises: a fitting cap 16 having a flow port; a nozzle head 17 having a discharge hole communicating with the flow port and an outside air introduction port 40 introducing outside air to a storage space; a partition member 18 having a mixing chamber for mixing content liquid and air, an air introduction port for introducing the air to the mixing chamber and a liquid introduction port for introducing the content liquid to the mixing chamber; and a check valve 20. The fitting cap 16 has a blocking plug part 29 for blocking the outside air introduction port 40 and a movement guide part for moving the nozzle head 17 between a closed position and an open position of the outside air introduction port 40. The nozzle head 17 has a contact member for contacting the movement guide part. In the nozzle head 17, the outside air introduction port 40 is provided separately from a gap between the contact member and the movement guide part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a foam discharge container.

Conventionally, a foam discharge container has been known in which a flexible container body is squeezed to be squeeze-deformed and the content liquid is discharged in the form of bubbles. For example, in Patent Document 1 below, a container body having a flexible body portion, a cap with a nozzle having a mounting portion and a nozzle mounted on the mouth portion of the container body, and a closure that closes the content flow path. Disclosed is a discharge container comprising a movable member that is movable along a nozzle between a position and an open position that opens the content flow path.

Japanese Unexamined Patent Publication No. 2019-99196

In the discharge container of Patent Document 1, when the squeezing of the container body is released after the foamy contents are discharged, the container body elastically returns to its original shape, and a negative pressure is generated in the container body. .. Due to this negative pressure, the contents remaining inside the nozzle are drawn into the container body together with the outside air sucked from the nozzle. By collecting the contents remaining inside the nozzle by such an operation, so-called suckback, it is possible to suppress dripping from the discharge port of the nozzle.

In the above discharge container, there is a request that the contents once exposed to the outside air are not to be collected in the container body. However, in the discharge container of Patent Document 1, it is difficult to meet this kind of request because the above-mentioned suckback occurs. Further, when the contents are continuously discharged a plurality of times, bubbles may fill the upper part of the storage space in the container body. In that case, at the next discharge, new bubbles are generated by the air mixed with the bubbles, so that the desired foam quality may not be obtained.

One aspect of the present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a foam discharge container capable of suppressing suckback when the squeezing of the container body is released. ..

In order to achieve the above object, the foam discharge container of one aspect of the present invention has a storage space for storing the content liquid, and is elastically deformable at the container body and the mouth of the container body. A foam discharge cap that is attached and has a discharge hole for discharging bubbles generated from the content liquid and the air in the storage space is provided, and the foam discharge cap is attached to the mouth of the container body. A mounting cap having a flow port for circulating the foam, the discharge hole mounted on the mounting cap and communicating with the flow port, and outside air that introduces outside air into the accommodation space when the container body is elastically restored. A nozzle head having an introduction port, a mixing chamber fixed to the mounting cap to mix the content liquid and the air, and an air introduction port for introducing the air in the accommodation space into the mixing chamber. The mounting is provided with a partition member having a liquid introduction port for introducing the content liquid in the accommodation space into the mixing chamber, and a check valve for suppressing the backflow of the contents introduced into the mixing chamber. The cap includes an obstruction plug portion that closes the outside air introduction port, and a movement guide portion that moves the nozzle head between a closed position where the outside air introduction port is closed and an open position where the outside air introduction port is released. The nozzle head further has a contact member that comes into contact with the movement guide portion, and in the nozzle head, the outside air introduction port has a gap between the contact member and the movement guide portion. Is provided separately.

According to the foam discharge container of one aspect of the present invention, since the nozzle head is provided with the outside air introduction port, the outside air is introduced into the accommodation space through the outside air introduction port when the container body is elastically restored. As a result, it becomes difficult for outside air to be introduced from the discharge port of the nozzle head, and it is possible to suppress suckback when the squeezing of the container body is released. Further, since the outside air introduction port is provided separately from the gap between the contact member and the movement guide portion, rattling between the contact member and the movement guide portion can be suppressed, and the nozzle head can be moved smoothly. can.

In the foam discharge container of one aspect of the present invention, the nozzle head has a top wall portion integrally provided with the contact member, and the outside air introduction port is provided on the top wall portion. good.

According to this configuration, the arrangement and design of the outside air inlet can be facilitated, and the outside air can be reliably introduced from the outside air inlet.

In the foam discharge container of one aspect of the present invention, the blocking plug portion has a communication hole on a side surface that does not face the outside air introduction port so as to communicate the outside air introduction port and the accommodation space at the open position. You may.

According to this configuration, since the communication hole that communicates the outside air introduction port and the accommodation space does not face the outside air introduction port, even if a foreign substance enters from the outside air introduction port when the nozzle head is in the open position. , It is possible to prevent foreign matter from falling directly into the accommodation space.

According to one aspect of the present invention, it is possible to provide a foam discharge container in which the contents once exposed to the outside air are less likely to be collected in the container body. In addition, it is possible to provide a foam discharge container in which a desired foam quality can be easily obtained.

It is a vertical cross-sectional view which shows the state which the nozzle head is in a closed position in the foam discharge container of 1st Embodiment. It is a vertical cross-sectional view which shows the state which the nozzle head is in an open position in the foam discharge container of 1st Embodiment. It is a vertical sectional view which shows the foam discharge container of 2nd Embodiment. It is a vertical sectional view which shows the foam discharge container of 3rd Embodiment.

[First Embodiment]
Hereinafter, the foam discharge container according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 is a vertical cross-sectional view showing, for example, a state during distribution and storage of the foam discharge container 10 of the present embodiment, and a state in which the nozzle head 17 is in a closed position. FIG. 2 is a vertical cross-sectional view showing a state in use of the foam discharge container 10 of the present embodiment and showing a state in which the nozzle head 17 is in the open position.

The foam discharge container 10 is also called a squeeze former, and is a liquid detergent such as a mouthwash (mouthwash), shampoo, body soap, hand soap, and pigment, a cosmetic liquid, a content liquid such as a hairdressing agent, or a liquid. The content liquid such as chemicals or seasonings such as soap is stored, and the content liquid is discharged in the form of foam.

As shown in FIGS. 1 and 2, the foam discharge container 10 includes a container main body 12, a foam discharge cap 13, and a tube 14. The foam discharge cap 13 includes a mounting cap 16, a nozzle head 17, a partition member 18, a foam member 19, and a check valve 20. The nozzle head 17 is movable in the vertical direction with respect to the mounting cap 16, and details will be described later. As shown in FIG. 1, the nozzle head 17 in which the outside air introduction port 40 is closed by the closing plug portion 29. The descending position of the nozzle head 17 is referred to as a closed position, and as shown in FIG. 2, the ascending position of the nozzle head 17 from which the outside air introduction port 40 is released is referred to as an open position.

Although the lower part is not shown, the container body 12 is formed in a bottomed cylindrical shape. Further, the mounting cap 16, the nozzle head 17, and the partition member 18 are formed in a cylindrical shape, and the central axes of the container body 12, the mounting cap 16, the nozzle head 17, and the partition member 18 are located on a common axis. ing. Hereinafter, this common axis is referred to as a container axis O, and the direction along the container axis O is referred to as a vertical direction. The bottom side of the container body 12 is referred to as the lower side along the vertical direction, and the mouth side of the container body 12 is referred to as the upper side. In a plan view of the foam discharge container 10 from the vertical direction, the direction orthogonal to the container axis O is referred to as the radial direction, and the direction orbiting around the container axis O (direction along the container axis O) is referred to as the circumferential direction.

The container body 12 includes a cylindrical mouth portion 22 having an open upper portion, an elliptical tubular body portion (not shown) connected to the mouth portion 22, and a bottom portion (not shown) that closes the lower end opening of the body portion. Has. The inside of the container body 12 is a storage space S for storing the content liquid. The container body 12 is formed of, for example, a synthetic resin, and can be elastically deformed. The body is flexible and has a flat cross-sectional view. By squeezing the body of the container body 12, the user can reduce the volume of the storage space S and pressurize the inside of the container body 12.

The mounting cap 16 is mounted on the mouth portion 22 of the container body 12. The mounting cap 16 includes an outer peripheral wall portion 24, a flange portion 25, an outer guide cylinder portion 26 (movement guide portion), an inner guide cylinder portion 27 (movement guide portion), an intermediate cylinder portion 28, and an obstruction plug portion 29. The stopper cylinder portion 30 and the distribution cylinder portion 31 are arranged coaxially with the container shaft O, and are integrally formed of, for example, a material such as synthetic resin.

The outer peripheral wall portion 24 has a cylindrical shape surrounding the mouth portion 22 of the container body 12, and a fitting convex portion 33 is provided at the lower end. In the present embodiment, the mounting cap 16 is fixed to the container body 12 by undercut fitting the fitting convex portion 33 of the outer peripheral wall portion 24 with the fitting concave portion 34 provided at the upper end of the mouth portion 22. .. Instead of this configuration, the mounting cap 16 is fixed to the container body 12 by screw-coupling the male-threaded portion and the female-threaded portion provided on the inner peripheral surface of the outer peripheral wall portion 24 and the outer peripheral surface of the mouth portion 22. Configuration may be adopted.

At the upper end of the outer peripheral wall portion 24, a flange portion 25 projecting inward in the radial direction is provided. An outer guide cylinder portion 26 extending upward is provided at the outer peripheral side end portion of the flange portion 25. An inner guide cylinder portion 27 extending upward is provided at the inner peripheral side end portion of the flange portion 25. The upper end of the inner guide cylinder portion 27 is located higher than the upper end of the outer guide cylinder portion 26. On the upper part of the outer peripheral surface of the inner guide cylinder portion 27, a stopper convex portion 36 projecting outward in the radial direction is provided over the entire circumference in the circumferential direction. The outer guide cylinder portion 26 and the inner guide cylinder portion 27 guide the movement of the nozzle head 17 in the vertical direction.

The intermediate cylinder portion 28 is provided inside the inner guide cylinder portion 27. The top wall 281 of the intermediate cylinder portion 28 is located at a position lower than the upper end of the inner guide cylinder portion 27 and the upper end of the outer guide cylinder portion 26.

The obstruction plug portion 29 is formed in a cylindrical shape extending upward from the top wall 281 of the intermediate tubular portion 28. The obstruction plug portion 29 has a tubular large-diameter portion 291 that opens downward, and a tubular small-diameter portion 292 that opens upward and has a smaller diameter than the large-diameter portion 291. The block plug portion 29 is provided at a position corresponding to the outside air introduction port 40, which will be described later, in the top wall 281 of the intermediate cylinder portion 28. The blocking plug portion 29 closes the outside air introduction port 40 at the closed position of the nozzle head 17. A communication hole 38 for communicating the outside air introduction port 40 and the accommodation space S at the open position of the nozzle head 17 is provided in a part of the blocking plug portion 29 in the circumferential direction. That is, the obstruction plug portion 29 has a communication hole 38 that allows the outside air introduction port 40 and the accommodation space S to communicate with each other at the open position of the nozzle head 17 on the side surface that does not face the outside air introduction port 40.

The stopper cylinder portion 30 is provided in a cylindrical shape that penetrates the top wall 281 in the vertical direction at a position inside the obstruction plug portion 29 on the top wall 281 of the intermediate cylinder portion 28. The upper portion of the stopper cylinder portion 30 extends upward toward the top wall 281, and the upper end of the stopper cylinder portion 30 abuts on the partition wall portion 45 at the closed position of the nozzle head 17 as shown in FIG. The lowering position of the head 17 is regulated. Further, the lower portion of the stopper cylinder portion 30 extends downward toward the top wall 281 and is fitted with the large diameter cylinder portion 59 of the partition member 18 described later.

The distribution cylinder portion 31 is provided inside the stopper cylinder portion 30 in a cylindrical shape coaxially with the stopper cylinder portion 30. The upper end of the distribution cylinder portion 31 is located lower than the upper end of the stopper cylinder portion 30. As shown in FIG. 1, the upper end opening of the circulation cylinder portion 31 is closed by the closing cylinder portion 51 described later at the closed position of the nozzle head 17, while at the open position of the nozzle head 17 as shown in FIG. Communicates the discharge port of the nozzle head 17 with the mixing chamber 76. Therefore, the upper end opening of the circulation cylinder portion 31 functions as a distribution port 42 for circulating the foam-like content liquid generated by the foaming member 19. That is, the distribution port 42 communicates with the mouth portion 22 of the container body 12, that is, the storage space S, and the liquid and air in the storage space S form bubbles and pass through the distribution port 42 to attach the cap 16. Flows into the inside of the nozzle head 17.

The nozzle head 17 includes a top wall portion 44, a partition wall portion 45, a discharge hole 46, a cover portion 47, an outer contact cylinder portion 48 (contact member), and an inner contact cylinder portion 49 (contact member). , A sealing cylinder portion 50, a closing cylinder portion 51, and an outside air introducing cylinder portion 52, and these portions are integrally formed of a material such as synthetic resin.

The partition wall portion 45 is provided inside the nozzle head 17. The top wall portion 44 extends horizontally from the cover portion 47 above the partition wall portion 45 and projects laterally. A cylindrical nozzle 53 extending in a substantially horizontal direction is formed by the partition wall portion 45 and the top wall portion 44, and the tip opening of the nozzle 53 projects to the outside of the outer contact cylinder portion 48 to discharge a foamy content liquid. It functions as a discharge hole 46 to be operated.

The outer contact cylinder portion 48 is provided in a cylindrical shape extending downward from the cover portion 47 and the partition wall portion 45. Further, the inner contact cylinder portion 49 is provided inside the outer contact cylinder portion 48 in a cylindrical shape extending downward from the cover portion 47 and the partition wall portion 45. The outer contact cylinder portion 48 is inserted between the outer guide cylinder portion 26 and the inner guide cylinder portion 27 of the mounting cap 16 in a state where a part of the outer contact cylinder portion 48 is in contact with the outer guide cylinder portion 26 or the inner guide cylinder portion 27. ing. Further, the inner guide cylinder portion 27 of the mounting cap 16 partially contacts the outer contact cylinder portion 48 or the inner contact cylinder portion 49 between the outer contact cylinder portion 48 and the inner contact cylinder portion 49. It is inserted in the state of.

With the above configuration, the outer contact cylinder portion 48 and the inner contact cylinder portion 49 slide while being guided by the outer guide cylinder portion 26 and the inner guide cylinder portion 27 of the mounting cap 16, so that the nozzle head 17 is in the closed position. Moves up and down between and the open position. Further, on the inner peripheral surface of the outer contact cylinder portion 48, a stopper convex portion 55 projecting inward in the radial direction is provided over the entire circumference in the circumferential direction. The stopper convex portion 55 on the inner peripheral surface of the outer contact cylinder portion 48 is undercut fitted with the stopper convex portion 36 on the outer peripheral surface of the inner guide cylinder portion 27. As a result, as shown in FIG. 2, at the open position of the nozzle head 17, the rising position of the nozzle head 17 is restricted by the contact between the stopper convex portion 55 and the stopper convex portion 36, and the nozzle head 17 is mounted. It is suppressed from coming out of the cap 16.

The sealing cylinder portion 50 is provided in a cylindrical shape extending downward from the top wall portion 44 and the partition wall portion 45. The closing cylinder portion 51 is provided inside the sealing cylinder portion 50 in a cylindrical shape extending downward from the partition wall portion 45. The lower end of the closing cylinder portion 51 is formed at substantially the same height as the lower end of the sealing cylinder portion 50. The sealing cylinder portion 50 moves up and down with respect to the stopper cylinder portion 30 while abutting on the stopper cylinder portion 30 of the mounting cap 16, but the nozzle head 17 is used for the stopper in both the closed position and the open position. The state of contact with the cylinder portion 30 is maintained. Therefore, the sealing cylinder portion 50 forms a flow path of the foam-like content liquid between the sealing cylinder portion 50 and the closing cylinder portion 51, and the space on the side where the outside air introduction cylinder portion 52 is provided by partitioning the flow path. Regulate the inflow of foamy content liquid into the water.

As described above, as shown in FIG. 1, the closing cylinder portion 51 closes the upper end opening of the circulation cylinder portion 31, that is, the circulation port 42 at the closed position of the nozzle head 17, while as shown in FIG. At the open position of the nozzle head 17, the distribution port 42 is opened so that the discharge hole 46 of the nozzle head 17 and the mixing chamber 76 communicate with each other.

The outside air introduction cylinder portion 52 is provided in a cylindrical shape extending downward from the top wall portion 44. The lower end of the outside air introduction cylinder portion 52 is formed at substantially the same height as the partition wall portion 45. The upper end opening of the outside air introduction cylinder 52 in the top wall 44 functions as an outside air introduction port 40 for introducing outside air into the accommodation space S when the container body 12 elastically returns during use. That is, in the foam discharge container 10 of the present embodiment, the outside air introduction port 40 is provided on the top wall portion 44 of the nozzle head 17. As shown in FIG. 1, at the closed position of the nozzle head 17, the outside air introduction port 40 is closed by fitting the blocking plug portion 29 into the outside air introduction cylinder portion 52, while the nozzle is as shown in FIG. At the open position of the head 17, the outside air introduction port 40 is released by separating the blocking plug portion 29 from the outside air introduction cylinder portion 52.

The partition member 18 is composed of two members, an extrapolation member 57 and an interpolation member 58 inserted inside the extrapolation member 57. The extrapolation member 57 includes a large-diameter cylinder portion 59, a small-diameter cylinder portion 60, a connection cylinder portion 61, a fixing cylinder portion 62, a first fixing convex portion 63, and a second fixing convex portion 64. , And a cylinder portion 65 for introducing outside air, and these portions are integrally formed of a material such as a synthetic resin. Further, the interpolation member 58 has an accommodating cylinder portion 66 and a mixing chamber cylinder portion 67, and these portions are integrally formed of a material such as synthetic resin.

In the extrapolation member 57, a small diameter cylinder portion 60 having a diameter smaller than that of the large diameter cylinder portion 59 is provided below the large diameter cylinder portion 59 in succession with the large diameter cylinder portion 59. Further, below the small-diameter tubular portion 60, a connecting tubular portion 61 for connecting the small-diameter tubular portion 60 and the tube 14 having a diameter smaller than that of the small-diameter tubular portion 60 is provided. An air introduction port 69 for introducing the air in the accommodation space S into the mixing chamber 76 is provided at the step portion between the large diameter cylinder portion 59 and the small diameter cylinder portion 60. At the lower end of the small-diameter tubular portion 60, a liquid introduction port 70 for introducing the content liquid in the accommodation space S into the mixing chamber 76 is provided via the tube 14. The upper end of the large-diameter tubular portion 59 is fitted inside the lower portion of the stopper tubular portion 30 of the mounting cap 16.

The fixing cylinder portion 62 is formed in a climax cylinder shape, and the outer peripheral surface of the side wall portion 621 abuts on the inner peripheral surface of the mouth portion 22 of the container body 12. Therefore, the foam discharge cap 13 is fixed to the container body 12 by the outer peripheral wall portion 24 of the mounting cap 16 and the side wall portion 621 of the fixing cylinder portion 62 sandwiching the mouth portion 22 of the container body 12.

A first fixing convex portion 63 that protrudes upward is provided at the upper end of the side wall portion 621, and a second portion that protrudes outward and upward in the circumferential direction below the position of the first fixing convex portion 63. 2 A convex portion 64 for fixing is provided. The first fixing convex portion 63 abuts on the inner peripheral surface of the inner guide cylinder portion 27 of the mounting cap 16, and the second fixing convex portion 64 is inside the thick portion of the outer peripheral wall portion 24 of the mounting cap 16. It abuts on the peripheral surface. Further, the partition member 18 is fixed to the mounting cap 16 by undercut fitting the second fixing convex portion 64 with the fitting convex portion 71 provided on the inner peripheral surface of the thick portion.

The outside air introduction cylinder portion 65 is formed in a cylindrical shape extending upward from the top wall of the fixing cylinder portion 62. The upper portion of the outside air introduction cylinder portion 65 has a smaller diameter than the lower portion, is provided at a position corresponding to the obstruction plug portion 29 of the mounting cap 16, and fits into the lower end opening of the large diameter portion 291 of the obstruction plug portion 29. Has been done. Further, the upper end of the outside air introduction cylinder portion 65 projects upward from the lower end of the communication hole 38 provided in the blocking plug portion 29. Therefore, a part of the lower area of the communication hole 38 is closed by the outside air introduction cylinder portion 65. The inside of the outside air introduction cylinder portion 65 functions as a flow path for the outside air when the outside air is introduced into the accommodation space S. A check valve 73 made of a three-point valve is provided at the lower end opening of the outside air introduction cylinder portion 65. If the configuration is such that communication from the inside of the container body 12 to the outside of the container body 12 is blocked and communication from the outside of the container body 12 to the inside of the container body 12 is possible, a check valve 73 other than the three-point valve is used. You may.

In the interpolation member 58, below the accommodating cylinder portion 66, a mixing chamber cylinder portion 67 having a diameter smaller than that of the accommodating cylinder portion 66 is provided continuously with the accommodating cylinder portion 66. An air introduction groove 75 communicating with the air introduction port 69 of the extrapolation member 57 is provided on the outer peripheral surface of the mixing chamber cylinder portion 67. The internal space of the mixing chamber cylinder portion 67 is a mixture in which the content liquid introduced through the tube 14 and the air in the accommodation space S introduced through the air introduction port 69 and the air introduction groove 75 are mixed. Functions as room 76.

The foaming member 19 has a first foaming member 191 and a second foaming member 192, and is housed inside the accommodating cylinder portion 66 of the interpolation member 58. The first foam member 191 and the second foam member 192 are arranged above (downstream side) the mixing chamber 76. As the foaming member 19, for example, a foaming member having a structure in which a mesh is fixed to the end face of the ring is used, and the foaming member 19 is fitted inside the interpolation member 58 in a posture in which the meshes are directed to opposite sides. The foaming member 19 is not limited to a foaming member having a structure having a ring and a mesh, and a foaming member having various configurations can be used depending on the type of the content liquid, the desired foam quality, and the like. Further, the number of foaming members 19 can be variously changed according to the type of the content liquid, the desired foam quality, and the like. In addition to the foaming function of generating bubbles, the foaming member 19 also has a foam adjusting function of finely and uniformly adjusting the generated bubbles.

The check valve 20 is composed of a ball valve supported by a valve seat 77 provided inside the small diameter tubular portion 60. The check valve 20 suppresses the backflow of the content liquid introduced into the mixing chamber 76. The check valve 20 does not necessarily have to be composed of a ball valve, and various types of valve bodies that can be used as the check valve 20 of the foam discharge cap 13 can be used.

The tube 14 is connected to the connecting tube portion 61. The upper end of the tube 14 is fitted inside the connecting cylinder 61 and communicates with the liquid introduction port 70, and the tube 14 passes through the inside of the partition member 18 to the storage space S of the container body 12 and the flow port 42. Communicate with. In the present embodiment, the tube 14 communicates the storage space S with the distribution port 42 through the liquid introduction port 70, the mixing chamber 76, and the foaming member 19. Although not shown, the lower end of the tube 14 extends to the bottom of the body of the container body 12, and the lower end opening of the tube 14 is immersed in the content liquid.

Hereinafter, a method of using the foam discharge container 10 having the above configuration will be described.
As shown in FIG. 1, when not in use, the nozzle head 17 is lowered toward the mounting cap 16 so that the nozzle head 17 is in the closed position. As a result, the closing cylinder portion 51 closes the distribution port 42, the communication between the discharge hole 46 and the storage space S of the container body 12 is cut off, and the foam discharge container 10 cannot be used. In this case, since the closing cylinder portion 51 blocks the communication between the distribution port 42 and the discharge hole 46, the foam discharge container 10 is in a sideways or inverted posture, or the container body 12 is unintentionally squeezed. Even in such a situation, it is possible to prevent the content liquid in the accommodation space S from leaking from the discharge hole 46.

On the other hand, as shown in FIG. 2, during use, the nozzle head 17 is raised from the mounting cap 16 and the nozzle head 17 is set to the open position. As a result, the closing cylinder portion 51 is separated above the distribution port 42, and the discharge hole 46 and the accommodation space S communicate with each other via the distribution port 42 and the mixing chamber 76. As a result, the foam discharge container 10 is in a usable state in which the foam-like content liquid can be discharged by squeezing the body of the container body 12.

When the body of the container body 12 is squeezed with the nozzle head 17 in the open position, the content liquid contained in the storage space S is mixed through the tube 14 and the liquid introduction port 70 of the partition member 18. Introduced in 76. At this time, the content liquid introduced into the mixing chamber 76 does not flow back by the check valve 20. On the other hand, the air existing in the accommodation space S is introduced into the mixing chamber 76 through the air introduction port 69 of the partition member 18 and the air introduction groove 75. After being mixed inside the mixing chamber 76, the content liquid and the air are foamed and conditioned by passing through the foaming member 19, and are discharged from the distribution port 42. Further, the foam-like content liquid discharged from the distribution port 42 passes through the inside of the nozzle 53 and is discharged in the form of foam from the discharge hole 46 to the outside.
In the foam discharge container 10 of the present embodiment, since the nozzle 53 protrudes to the side of the container body 12, the contents can be discharged in a sideways or upright state without causing the foam discharge container 10 to be in an inverted state, for example. Is.

The shape of the body of the container body 12 is not particularly limited, but it may be an elliptical cylinder having a flat shape in a cross-sectional view. According to this configuration, when the body of the container body 12 is squeezed, when the body is gripped and squeezed with one hand, the body is easily squeezed by gripping the body from both sides in the lateral view. can do. Further, the nozzle head 17 may be rotatable so that the tip of the nozzle head 17 faces the short side in the cross-sectional view when the nozzle head 17 is opened. According to this configuration, when the body portion is gripped from both sides in the cross-sectional view in the short side with one hand, the discharge holes 46 of the nozzle head 17 can be faced to the user.

According to the above configuration, when squeezing the body of the container body 12, even when the body is gripped and squeezed with one hand, the body can be easily pressed with the discharge hole 46 facing the user. Can be squeezed into. Therefore, for example, when the foam discharge container 10 is used to store a content liquid such as a mouthwash or a cosmetic liquid that is directly discharged into the mouth or face of the user, the operability can be improved.

In the foam discharge container 10 of the present embodiment, since the nozzle head 17 is provided with the outside air introduction port 40, when the squeezing of the container body 12 is released after the content liquid is discharged, the container body 12 returns to its original shape. By returning to elasticity, a negative pressure is generated in the container body 12, and the negative pressure introduces the outside air into the inside of the foam discharge cap 13 through the outside air introduction port 40. Further, the outside air passes through the inside of the outside air introduction cylinder portion 65 through the communication hole 38, pushes down the check valve 73, and is introduced into the container body 12. At this time, since the sealing cylinder portion 50 is in contact with the stopper cylinder portion 30, the internal space of the nozzle head 17 does not communicate with the communication hole 38 and is a closed space. Therefore, even if a negative pressure is generated in the container body 12, the outside air is not sucked from the discharge hole 46, and the foamy content liquid remaining inside the nozzle head 17 is present together with the outside air in the container body 12. It is possible to suppress being drawn inside.

As described above, according to the foam discharge container 10 of the present embodiment, it is possible to suppress the suckback when the squeezing of the container body 12 is released. In addition, it is possible to meet the demand that the content liquid once exposed to the outside air is not to be collected in the container body. Further, for example, even when the content liquid is continuously discharged a plurality of times, it is possible to prevent the storage space S in the container body 12 from being filled with bubbles. Therefore, the bubbles accumulated in the accommodation space S are less likely to be mixed with the air at the time of the next discharge, and the desired foam quality can be obtained.

Further, as another configuration for introducing outside air into the container body 12 when the squeezing of the container body 12 is released, for example, the outer contact cylinder portion 48 and the inner contact cylinder portion 49 of the nozzle head 17, and the mounting cap 16 are used. It is conceivable to use the gap between the outer guide cylinder portion 26 and the inner guide cylinder portion 27 as a flow path for introducing outside air. However, in that case, in order to use the above gap as a flow path for introducing outside air, it is necessary to secure a wide gap to some extent, and in that case, rattling between the nozzle head 17 and the mounting cap 16 occurs. , It may be difficult to move the nozzle head 17 smoothly. In response to this problem, in the foam discharge container 10 of the present embodiment, since the outside air introduction port 40 is provided separately from the above gap, it is not necessary to keep the above gap wide, and the nozzle head 17 is moved. The size should be sufficient for. As a result, rattling between the nozzle head 17 and the mounting cap 16 is suppressed, and the nozzle head 17 can be smoothly moved.

Further, in the present embodiment, the stopper convex portion 55 of the outer contact cylinder portion 48 and the stopper convex portion 36 of the inner guide cylinder portion 27 undercut and fit each other cover the entire circumference of the cylinder portions 48 and 27. Since it is provided, rattling between the nozzle head 17 and the mounting cap 16 can be suppressed more reliably.

Further, in the present embodiment, since the outside air introduction port 40 is provided on the top wall portion 44 of the nozzle head 17, the outside air introduction port 40 can be arranged and designed by using the top wall portion 44 having a relatively large area. The degree of freedom is increased, and the outside air can be reliably introduced from the outside air introduction port 40.

Further, in the present embodiment, since the mounting cap 16 has the blocking plug portion 29, when the nozzle head 17 is in the closed position, the content liquid leaks through the outside air introduction port 40, or external foreign matter leaks. It is possible to suppress the entry into the space inside the nozzle head 17. Further, since the communication hole 38 that communicates the outside air introduction port 40 and the accommodation space S does not face the outside air introduction port 40, when the nozzle head 17 is in the open position, an external foreign substance temporarily enters from the outside air introduction port 40. Even if this is done, it is possible to prevent the foreign matter from falling directly into the accommodation space S. Further, in the case of the present embodiment, since the upper end of the outside air introduction cylinder portion 65 projects upward from the lower end of the communication hole 38, even if the foreign matter reaches the vicinity of the communication hole 38, the outside air introduction cylinder portion It is blocked by the upper end of the 65, and is prevented from falling into the inside of the outside air introduction cylinder portion 65.

[Second Embodiment]
Hereinafter, the second embodiment of the present invention will be described with reference to FIG.
The basic configuration of the foam discharge container of the second embodiment is the same as that of the first embodiment, and the configuration around the outside air introduction port is different from that of the first embodiment. Therefore, in the present embodiment, the entire description of the foam discharge container will be omitted.
FIG. 3 is a vertical cross-sectional view of the foam discharge container 80 of the second embodiment. FIG. 3 shows a state in which the nozzle head 82 is in the closed position.
In FIG. 3, components common to the drawings used in the first embodiment are designated by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 3, in the foam discharge cap 81 of the present embodiment, the top wall portion 44 of the nozzle head 82 has a cylinder portion 83 for introducing outside air. As a result, as in the first embodiment, the top wall portion 44 is provided with an outside air introduction port 84 for introducing outside air into the accommodation space S when the container body 12 elastically returns.

In the mounting cap 85 of the present embodiment, the obstruction plug portion 86 has a cylindrical large-diameter portion 861 that opens downward and a climax cylindrical small-diameter portion that opens downward and has a smaller diameter than the large-diameter portion 861. It has 862 and. Similar to the first embodiment, the obstruction plug portion 86 closes the outside air introduction port 84 at the closed position of the nozzle head 82, but in the first embodiment, the upper end of the small diameter portion 292 is the top wall portion 44 of the nozzle head 17. In this embodiment, the small diameter portion 862 of the obstruction plug portion 86 extends upward longer than the small diameter portion 292 of the first embodiment, and the upper surface of the small diameter portion 862 is the nozzle head, while it is located below the upper surface. It is located on the same surface as the upper surface of the top wall portion 44 of 82.
Other configurations of the foam discharge container 80 are the same as those in the first embodiment.

Also in the foam discharge container 80 of the present embodiment, it is possible to suppress the suckback when the squeezing of the container body 12 is released, and it is possible to realize a configuration in which the content liquid once exposed to the outside air is not collected in the container body 12. The same effects as those in the first embodiment can be obtained, such as obtaining a desired foam quality and suppressing rattling between the nozzle head 82 and the mounting cap 85.

Further, in the present embodiment, since the upper surface of the obstruction plug portion 86 is located on the same surface as the upper surface of the top wall portion 44, there is no unevenness on the upper surface of the nozzle head 82. Therefore, foreign matter is unlikely to collect on the upper part of the outside air introduction port 84, and it is easy to wipe the foreign matter and dirt on the upper surface of the nozzle head 82.

[Third Embodiment]
Hereinafter, the third embodiment of the present invention will be described with reference to FIG.
The basic configuration of the foam discharge container of the third embodiment is the same as that of the first embodiment, and the configuration around the outside air introduction port is different from that of the first embodiment. Therefore, in the present embodiment, the entire description of the foam discharge container will be omitted.
FIG. 4 is a vertical cross-sectional view of the foam discharge container 90 of the third embodiment. FIG. 4 shows a state in which the nozzle head 92 is in the closed position.
In FIG. 4, components common to the drawings used in the first embodiment are designated by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 4, in the foam discharge cap 91 of the present embodiment, the top wall portion 44 of the nozzle head 92 has a cylinder portion 93 for introducing outside air. As a result, as in the first embodiment, the top wall portion 44 is provided with an outside air introduction port 94 for introducing outside air into the accommodation space S when the container body 12 elastically returns.

In the mounting cap 95 of the present embodiment, the obstruction plug portion 96 has an upper cylinder portion 961 that opens upward and a lower cylinder portion 962 that opens downward. A communication hole 38 is provided on a part of the side surface of the lower cylinder portion 962. Similar to the first embodiment, the obstruction plug portion 96 closes the outside air introduction port 94 at the closed position of the nozzle head 92, but in the first embodiment, the obstruction plug portion 29 is inserted inside the outside air introduction cylinder portion 52. However, in the present embodiment, the outside air introduction cylinder portion 93 is inserted into the upper cylinder portion 961 of the block plug portion 96. Therefore, the outside air introduction cylinder portion 93 of the present embodiment is formed to have a smaller diameter than the outside air introduction cylinder portion 52 of the first embodiment.
Other configurations of the foam discharge container 90 are the same as those in the first embodiment.

Also in the foam discharge container 90 of the present embodiment, it is possible to suppress the suckback when the squeezing of the container body 12 is released, and it is possible to realize a configuration in which the content liquid once exposed to the outside air is not collected in the container body 12. The same effects as those in the first embodiment can be obtained, such as obtaining a desired foam quality and suppressing rattling between the nozzle head 92 and the mounting cap 95.

Further, in the present embodiment, the diameter of the outside air introduction cylinder portion 93 is small, and the outside air introduction cylinder portion 93 is inserted into the upper cylinder portion 961 of the block plug portion 96, so that the outside air introduction port 94 is deeply positioned. It is difficult for foreign matter to enter.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the outside air introduction port is provided on the top wall portion of the nozzle head, but may be provided at a location other than the top wall portion of the nozzle head. Further, the extending direction of the flow path into which the outside air is introduced does not necessarily have to be the vertical direction. Therefore, the outside air introduction port may be provided, for example, in the cover portion of the nozzle head, and the flow path of the outside air may extend in the horizontal direction. Further, the number of outside air inlets is not limited to one, and is not particularly limited.

Further, in the above embodiment, the state in which the nozzle head is lowered is set as the closed position, and the state in which the nozzle head is raised is set as the open position. However, the closed position / open position of the nozzle head is determined by the vertical movement of the nozzle head. It is not limited to the switching configuration. For example, a configuration may be adopted in which the closed position / open position of the nozzle head is switched by rotating the nozzle head around the container shaft O.

Further, in the second embodiment and the third embodiment, the upper end of the outside air introduction cylinder portion of the partition member is located at the same height as the lower end of the communication hole. Similarly, the upper end of the outside air introduction cylinder portion of the partition member may protrude above the lower end of the communication hole.

In addition, the number, shape, arrangement, etc. of various components of the foam discharge container can be appropriately changed without being limited to the above-described embodiment, and each of the above-described embodiments can be appropriately combined.

10,80,90 Foam discharge container 12 Container body 13,81,91 Foam discharge cap 16,85,95 Mounting cap 17,82,92 Nozzle head 18 Section member 20 Check valve 22 Port 26 Outer guide cylinder (movement) Guide section)
27 Inner guide cylinder (movement guide)
29,86,96 Block plug part 38 Communication hole 40,84,94 Outside air introduction port 42 Distribution port 44 Top wall part 46 Discharge hole 48 Outer contact cylinder part (contact member)
49 Inner contact cylinder (contact member)
69 Air inlet 70 Liquid inlet 76 Mixing room S Storage space

Claims (3)

A container body that has a storage space for storing the content liquid and is elastically deformable.
A foam discharge cap that is attached to the mouth of the container body and has a discharge hole for discharging bubbles generated from the content liquid and the air in the accommodation space.
With
The foam discharge cap is
A mounting cap that is mounted on the mouth of the container body and has a distribution port for circulating the foam.
A nozzle head having a discharge hole attached to the mounting cap and communicating with the distribution port, and an outside air introduction port for introducing outside air into the accommodation space when the container body elastically returns.
The mixing chamber fixed to the mounting cap and mixing the content liquid and the air, the air introduction port for introducing the air in the accommodation space into the mixing chamber, and the content liquid in the accommodation space are said to be the same. A partition member having a liquid inlet to be introduced into the mixing chamber, and
A check valve that suppresses the backflow of the contents introduced in the mixing chamber,
With
The mounting cap is a movement guide for moving the nozzle head between a closing plug portion that closes the outside air introduction port, a closed position where the outside air introduction port is closed, and an open position where the outside air introduction port is released. With more parts,
The nozzle head further has an abutting member that abuts on the movement guide portion.
In the nozzle head, the outside air introduction port is a foam discharge container provided separately from the gap between the contact member and the movement guide portion. The nozzle head further has a top wall portion provided integrally with the contact member.
The foam discharge container according to claim 1, wherein the outside air introduction port is provided on the top wall portion. The foam discharge container according to claim 1 or 2, wherein the blocking plug portion has a communication hole for communicating the outside air introduction port and the accommodation space at the open position on a side surface that does not face the outside air introduction port. ..

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