JP6416042B2 - Foam discharge container - Google Patents

Description

  The present invention relates to a foam discharge container for discharging a content liquid contained in a container body in a foam shape.

  Liquid containers such as soy sauce and dressings, cosmetics such as lotion, toiletries such as shampoos, rinses, and liquid soaps are stored in the container body as the container body is squeezed. A foam discharge container (squeeze foamer container) is known in which a contained liquid is mixed with air, foamed with a foam, and discharged in the form of foam.

  For example, Patent Document 1 discloses a container body configured as a double container (laminated peeling container) having an inner layer body that contains a content liquid and an outer layer body that contains the inner layer body, and is attached to the mouth of the container body. When the body portion of the container body is squeezed, the content liquid is mixed in the former cap with the air supplied from the air chamber between the inner layer body and the outer layer body and the mixture is mixed with the former cap. A foam discharge container is described in which the content liquid is discharged in the form of foam by passing through a foam.

  In such a foam discharge container, when the squeeze is released after the content liquid is discharged, the outside air is introduced into the air chamber between the inner layer body and the outer layer body along with the restoration of the body portion of the container body. The volume-reduced and deformed state can be maintained, whereby the inflow of air into the inner layer body can be prevented and deterioration of the content liquid can be suppressed.

JP 2009-149327 A

  For example, in the food field, when liquid seasonings such as soy sauce or dressing are put into a foam, depending on the type of dish, high-quality foam discharge is required, or liquid soaking into the dish is considered. Thus, a foam-like discharge close to the liquid is required. As described above, the foam discharge container may be required to have a function capable of easily changing the foam quality of the foam to be discharged. However, in the conventional foam discharge container, the mixing ratio of the air and the content liquid is high. Since it was constant, the foam quality could not be changed.

  An object of the present invention is to solve such problems, and an object of the present invention is to provide a foam discharge container capable of easily changing the foam quality of the foam to be discharged.

  The foam discharge container of the present invention is a foam discharge container for discharging the content liquid contained in the container main body in the form of foam, and has a vent hole in the mouth and forms an outer shell of the container main body. And an inner layer body that is capable of containing a content liquid therein and is capable of volumetric deformation, and is housed in the outer layer body and forms an air chamber connected to the vent hole between the outer layer body and the inner layer An inner plug body that covers the opening of the body, and a discharge cylinder that communicates with the inside of the inner layer body, the inner plug member that is attached to the opening end of the mouth, the mouth that is attached to the mouth, and the mouth A base cap that covers the opening portion and the inner plug member and forms an air flow path that communicates with the vent hole between the mouth portion and the inner plug member; and a shaft that passes through the base cap and is connected to the discharge cylinder portion Discharge cylinder part that is relatively movable in the direction, and foam disposed inside the discharge cylinder part And an air introduction port that is continuous with the air flow path and opens toward the foam, and is attached to the base cap so as to be movable in the axial direction of the discharge cylinder portion with respect to the base cap. A discharge head and a first reverse provided in the air flow path, permitting an air flow from the vent hole toward the air inlet and blocking an air flow from the air inlet toward the vent hole. A stop valve is provided in an air supply hole communicating with the air chamber, and allows a flow of air from the air supply hole toward the air chamber and prevents an air flow from the air chamber toward the air supply hole. 2 a check valve, a switching member accommodated in the discharge cylinder part so as to be movable in the axial direction of the discharge cylinder part, provided in the discharge head, and protrudes into the discharge cylinder part Before inside the discharge cylinder A regulating member that defines a moving stroke end of the switching member on the discharge cylinder part side, and a first inner diameter part having an inner diameter larger than an outer diameter of the switching member on an inner surface of the discharge cylinder part, A second inner diameter portion having an inner diameter larger than the first inner diameter portion, and moving the discharge head in the axial direction with respect to the base cap, thereby moving a moving stroke on the discharge cylinder portion side of the switching member. The end can be switched between a position inside the first inner diameter part and a position inside the second inner diameter part.

  The foam discharge container according to the present invention has the above-described configuration, wherein the discharge head is screw-coupled to a male screw portion provided in the base cap, and the rotation of the discharge head is converted into movement in the axial direction of the discharge head. It is preferable to have a part.

  In the above configuration, the foam discharge container of the present invention is formed such that the second inner diameter portion is tapered such that the inner diameter gradually increases from the first inner diameter portion side toward the discharge cylinder portion side. Is preferred.

  In the foam discharge container of the present invention, in the above configuration, it is preferable that the discharge cylinder portion includes a reduced diameter portion at a lower end of the first inner diameter portion.

  In the above configuration, the foam discharge container of the present invention is provided with a partition wall adjacent to the discharge tube portion side with respect to the foam inside the discharge tube portion, and the partition wall is opened toward the foam body. Preferably, the liquid introduction port is provided, and the defining member is provided integrally.

  According to the present invention, by moving the discharge head in the axial direction of the discharge cylinder part with respect to the base cap, the flow passage area in the discharge cylinder part can be increased or decreased to change the mixing ratio of the content liquid and air. Therefore, it is possible to easily change the foam quality of the foam discharged from the discharge cylinder by a simple operation of moving the discharge head in the axial direction with respect to the base cap. Thus, according to this invention, the foam discharge container which can change easily the foam quality of the foam to discharge can be provided.

It is sectional drawing in the normal mode of the foam discharge container which is one embodiment of this invention. It is sectional drawing in the wet mode of the foam discharge container shown in FIG. It is sectional drawing which shows a mode that a content liquid is discharged in bubble shape by normal mode. It is sectional drawing which expands and shows the state of the 1st non-return valve at the time of discharge of a content liquid. It is sectional drawing which shows a mode that air is introduce | transduced into an air chamber after discharge of a content liquid. It is sectional drawing which shows a mode that a content liquid is discharged in foam form in wet mode. (A) is sectional drawing which shows the flow-path area of the discharge cylinder part in normal mode, (b) is sectional drawing which shows the flow-path area of the discharge cylinder part in wet mode. It is a side view of the foam discharge container shown in FIG.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  A foam discharge container 1 according to an embodiment of the present invention shown in FIG. 1 discharges a liquid content contained in a container body 2 in the form of foam. The foam discharge container 1 can store liquid seasonings such as soy sauce and dressing, cosmetics such as lotion, toiletries such as shampoo, rinse, and liquid soap as content liquids.

  The container body 2 is configured as a double container including an outer layer body 3 and an inner layer body 4.

  The outer layer body 3 constitutes the outer shell of the container body 2, and a cylindrical mouth portion 3a and a trunk portion 3b integrally connected to the lower portion (lower side in FIG. 1) of the mouth portion 3a are made of a synthetic resin material. It is formed in the shape (for example, bottle shape) provided. The body part 3b can be squeezed (pressed) and can be restored to its original shape when the squeeze is released. The mouth portion 3a is provided with a vent hole 3c penetrating the mouth portion 3a in the radial direction, and a male screw portion 3d is integrally provided on the outer peripheral surface thereof. Further, on the outer peripheral surface of the mouth portion 3a where the vent hole 3c is provided, there is provided a groove portion 3e in which the male screw portion 3d is cut out in the vertical direction.

  In the case shown in the figure, the mouth portion 3a is provided with a pair of vent holes 3c, but it is sufficient that at least one vent hole 3c is provided.

  The inner layer body 4 has an accommodation space 4 a that can contain the content liquid therein, and is accommodated in the outer layer body 3 with the opening being matched with the opening of the mouth portion 3 a of the outer layer body 3. The inner layer body 4 is formed of a synthetic resin material so as to be thin and can be reduced in volume so as to reduce its internal volume. The inner layer body 4 forms an air chamber 5 between the inner layer body 4 and the outer layer body 3, and the air chamber 5 communicates with the vent hole 3c.

  The container body 2 can be configured as a laminated peeling container in which the inner layer body 4 is laminated so as to be peelable from the outer layer body 3 by laminating synthetic resin materials having low compatibility with each other. Note that the container body 2 is not limited to the delamination container, and may have other configurations as long as it is configured as a double container in which the inner layer body 4 is accommodated inside the outer layer body 3.

  An inner plug member 10 made of, for example, resin is attached to the opening end of the mouth portion 3 a of the outer layer body 3. The inner plug member 10 includes a plate-shaped inner plug main body 11 that covers the opening of the inner layer body 4, and is integrally provided on the lower surface of the inner plug main body 11 (the surface facing the housing space 4a). A cylindrical seal wall 12 is attached to the mouth portion 3a by fitting in a liquid-tight manner to the inner peripheral surface of the mouth portion 3a of the outer layer body 3 with the inner layer body 4 interposed therebetween. Further, an edge wall 13 extending upward is integrally provided at an edge portion of the inner plug main body portion 11, and a through hole 14 is provided at a root portion of the edge wall 13. Further, the inner plug member 10 is provided with a discharge cylinder portion 15 integrally with the inner plug main body portion 11. The discharge cylinder portion 15 penetrates the inner plug main body portion 11 in the vertical direction (the axial direction of the mouth portion 3a), and the inside communicates with the accommodation space 4a of the inner layer body 4 to serve as a flow path for the content liquid.

  A base cap 20 made of, for example, resin is attached to the mouth 3a of the outer layer body 3. The base cap 20 includes a cylindrical outer peripheral wall 21 that covers the outer periphery of the mouth portion 3a and whose lower end portion is in airtight contact with the outer peripheral surface of the mouth portion 3a. On the inner peripheral surface of the outer peripheral wall 21, a female screw portion 21a corresponding to the male screw portion 3d of the mouth portion 3a is provided. When the female screw portion 21a is screwed to the male screw portion 3d, the base cap 20 has the mouth portion 3a. It is fixed to.

  The base cap 20 may be configured to be fixed to the mouth portion 3a by, for example, undercut (plugging) instead of the screw connection between the male screw portion 3d and the female screw portion 21a.

  A cylindrical mounting cylinder portion 22 is integrally provided at the upper end of the outer peripheral wall 21, and a ceiling wall 23 extending integrally in the radial direction is integrally provided at the upper end of the mounting cylinder portion 22. A cylindrical inner peripheral wall 24 extending downward is integrally provided at the inner edge of the top wall 23. As described above, when the base cap 20 configured to include the outer peripheral wall 21, the mounting cylinder portion 22, the top wall 23, and the inner peripheral wall 24 is attached to the mouth portion 3a, one of the mouth portion 3a and the inner plug member 10 is provided. The portion is covered with the base cap 20, and an air flow path 25 is formed between the mouth portion 3 a and the inner plug member 10 and the base cap 20. The air flow path 25 communicates with a vent hole 3c provided in the mouth portion 3a.

  A discharge cap 30 is attached to the base cap 20. The discharge head 30 includes a mounting outer peripheral wall 31 that surrounds the mounting cylindrical portion 22 of the base cap 20, and an upper wall 32 that is integrally connected to the upper end of the mounting outer peripheral wall 31, and is mounted on the upper side of the base cap 20. ing. A female screw portion 31 a is integrally provided on the inner peripheral surface of the mounting outer peripheral wall 31, and the female screw portion 31 a is screwed to a male screw portion 22 a provided on the outer peripheral surface of the mounting cylinder portion 22, whereby the discharge head 30 is It is fixed to the base cap 20. Further, with such a configuration, by rotating the discharge head 30 and rotating it relative to the base cap 20, the rotation is converted into movement of the discharge head 30 in the axial direction with respect to the base cap 20. 20, the ejection head 30 can be moved in the axial direction of the discharge cylinder 15.

  In the present embodiment, the discharge head 30 is screwed to the base cap 20, and the discharge head 30 is moved relative to the base cap 20 in the axial direction of the discharge cylinder 15 by rotating the discharge head 30. However, if the discharge head 30 can be attached to the base cap 20 so as to be movable in the axial direction of the discharge cylinder portion 15, for example, the discharge head 30 can be fixed to the base cap 20 with the guide protrusions while rotating in the vertical direction. Various configurations such as a configuration that is movably mounted on the frame and that is prevented from coming off by undercut engagement can be employed.

  A cylindrical seal wall 33 protruding downward is integrally provided on the lower surface of the upper wall 32, and the inner peripheral surface of the seal wall 33 abuts against the outer peripheral surface of the inner peripheral wall 24 in an airtight manner. Air leakage from the combination part with the discharge head 30 is prevented.

  A discharge cylinder portion 34 is provided in the discharge head 30. The discharge cylinder part 34 is a part for discharging the foamed content liquid to the outside. In the present embodiment, the discharge cylinder portion 34 is formed separately from the upper cylinder portion 34 a provided integrally with the upper wall 32 and the discharge cylinder portion 34, and is fitted and fixed inside the seal wall 33. The lower cylinder portion 34b is combined in the axial direction. The discharge cylinder part 34 is formed in a cylindrical shape coaxial with the discharge cylinder part 15, and the lower cylinder part 34 b penetrates the base cap 20 and is fitted to the outside of the discharge cylinder part 15 so as to be relatively movable in the axial direction. doing. The inner peripheral surface of the lower cylindrical portion 34b of the discharge cylindrical portion 34 is slidable with respect to the outer peripheral surface of the discharge cylindrical portion 15, and is closely fitted so as not to allow liquid and gas to pass therethrough.

  In the present embodiment, the discharge cylinder part 34 is configured by combining the upper cylinder part 34a and the lower cylinder part 34b. However, the present invention is not limited to this, and the upper cylinder part 34a and the lower cylinder part 34b include It can also be set as the structure formed integrally.

  A foam 35 is disposed inside the discharge cylinder portion 34. As the foam 35, for example, a porous body having a large number of gaps inside such as sponge, felt, and sintered porous body can be used. The foam 35 is arranged inside the discharge cylinder portion 34 in a state of being fixed by means such as undercut.

  The discharge head 30 is provided with an air inlet 36. In the present embodiment, the air inlet 36 is defined and formed between the upper wall 32 and the seal wall 33 and the lower cylindrical portion 34b. The air inlet 36 continues to the air flow path 25 and opens toward the foam 35 on the inner peripheral surface of the discharge cylinder portion 34. That is, the air introduction port 36 opens to face the side of the foam 35, and can supply air supplied from the air flow path 25 toward the inside of the foam 35.

  As shown in the drawing, the discharge head 30 may be configured such that an overcap C that closes the discharge cylinder portion 34 is integrally connected by a hinge H. The overcap C is not limited to the structure integrally connected to the discharge head 30 by the hinge H, but is formed separately from the discharge head 30 and is attached to the discharge head 30 by undercut engagement or screw connection. It can also be.

  The air flow path 25 is provided with a first check valve 40 that allows an air flow from the vent hole 3c toward the air inlet 36 and prevents an air flow from the air inlet 36 toward the vent hole 3c. It has been. In the present embodiment, an annular wall 41 formed in a cylindrical shape by an elastic body such as rubber is fitted and fixed to the outer peripheral surface of the inner peripheral wall 24, and the first check valve 40 is the same as the annular wall 41. It is formed in a thin disk shape by an elastic body such as rubber and is integrally provided on the inner peripheral surface on the lower end side of the annular wall 41. Note that the air flow path 25 communicates from the air hole 3 c side to the air inlet 36 side through a gap between the lower end of the annular wall 41 and the inner plug main body 11. In the normal state, the first check valve 40 elastically contacts the upper surface of the inner plug main body 11, thereby preventing the flow of air from the air introduction port 36 toward the vent hole 3 c. On the other hand, when a flow of air from the vent hole 3c toward the air inlet 36 occurs, the first check valve 40 is elastically deformed so as to be separated from the upper surface of the inner plug main body 11 and allows the flow.

  The first check valve 40 is not limited to the above-described configuration, and is provided in the air flow path 25 to allow air flow from the vent hole 3c toward the air inlet port 36 and from the air inlet port 36 to the vent hole 3c. Various configurations can be adopted as long as the flow of the directed air can be prevented.

  The top wall 23 of the base cap 20 is provided with an air supply hole 42 that communicates with the air chamber 5 through the air flow path 25 and the vent hole 3c. The opening of the air supply hole 42 allows a flow of air from the air supply hole 42 toward the air chamber 5, and prevents a flow of air from the air chamber 5 toward the air supply hole 42. 44 is provided. In the present embodiment, the second check valve 44 is formed in a thin disk shape by an elastic body such as rubber similar to the annular wall 41 and is integrally provided on the outer peripheral surface on the upper end side of the annular wall 41. . In the normal state, the second check valve 44 elastically contacts the lower surface of the top wall 23 of the base cap 20, thereby preventing the air flow from the air chamber 5 toward the air supply hole 42. That is, the second check valve 44 prevents air from flowing out from the air flow path 25 through the air supply hole 42 to the outside. On the other hand, the second check valve 44 is elastically deformed so as to be separated from the lower surface of the top wall 23 with respect to the air flow from the air supply hole 42 toward the air chamber 5 to allow the flow.

  As in the present embodiment, the first check valve 40 and the second check valve 44 are configured as an integral part integrally formed with the annular wall 41, thereby reducing the number of parts of the foam discharge container 1. In addition, the assembly work of the first check valve 40 and the second check valve 44 can be facilitated, and the cost of the foam discharge container 1 can be reduced.

  The second check valve 44 is not limited to the above-described configuration, and allows the air flow from the air supply hole 42 toward the air chamber 5 and prevents the air flow from the air chamber 5 toward the air supply hole 42. If possible, for example, when the container body 2 is in an upright posture with the mouth portion 3a on the upper side with respect to the body portion 3b, the air supply hole 42 is opened, and the container body 2 has the mouth portion 3a below the body portion 3b. Various configurations such as a configuration using a ball valve that moves so as to close the air supply hole 42 when the side is in a tilted posture can be employed.

  A switching member 50 is accommodated in the discharge cylinder portion 15. The switching member 50 is formed in a spherical shape by, for example, a steel material or a resin material, and is movable in the axial direction inside the discharge cylinder portion 15. The switching member 50 is not limited to a spherical shape, and can be formed in, for example, a cylindrical shape or a bowl shape.

  On the other hand, the discharge head 30 is provided with a defining member 51. In the present embodiment, a partition wall 52 is provided inside the discharge cylinder portion 34 so as to be adjacent to the discharge cylinder portion 15 side with respect to the foam 35 and integrally with the lower cylinder portion 34b. 52 is integrally provided. More specifically, the defining member 51 is formed in an elongated column shape, and protrudes from the shaft center on the lower surface of the partition wall 52 into the discharge cylinder portion 15. The regulating member 51 is changed in posture from a standing posture in which the container body 2 has the mouth portion 3a on the upper side with respect to the body portion 3b to an inclined posture in which the mouth portion 3a is on the lower side with respect to the body portion 3b. When the inside of the discharge cylinder part 15 is moved toward the discharge cylinder part 34, the moving stroke end on the discharge cylinder part 34 side in the discharge cylinder part 15 of the switching member 50 is defined. That is, when the switching member 50 comes into contact with the defining member 51, the stroke end of the switching member 50 on the discharge cylinder portion 34 side is determined. Further, since the defining member 51 is provided on the ejection head 30, when the ejection head 30 moves relative to the base cap 20 in the axial direction of the ejection cylinder portion 15, the regulation member 51 inside the ejection cylinder portion 15. Thus, the position of the moving stroke end of the switching member 50 is changed.

  The partition wall 52 is provided with a plurality of liquid inlets 52a, and the content liquid is supplied from the discharge cylinder portion 15 toward the foam 35 through the liquid inlet 52a.

  A first inner diameter portion 53 and a second inner diameter portion 54 are provided on the inner surface of the discharge cylinder portion 15. The first inner diameter portion 53 has a constant inner diameter slightly larger than the outer diameter of the switching member 50, and extends downward from a substantially central position in the axial direction of the discharge cylinder portion 15. On the other hand, the second inner diameter portion 54 has a larger inner diameter than the first inner diameter portion 53 and is provided closer to the discharge cylinder portion 34 than the first inner diameter portion 53. In the case shown in the drawing, a portion of the inner surface of the discharge cylinder portion 34 closer to the discharge cylinder portion 34 than the first inner diameter portion 53 is formed in a tapered shape whose inner diameter gradually increases as it goes upward. A portion having a larger inner diameter than the first inner diameter portion 53 of the inner surface is a second inner diameter portion 54. That is, the second inner diameter portion 54 is formed on a tapered inner surface having a larger diameter than the first inner diameter portion 53.

  As shown in FIG. 1, when the discharge head 30 is tightened with respect to the base cap 20, the foam discharge container 1 is in the normal mode, and the switching member 50 by the defining member 51 inside the discharge cylinder portion 15. The movement stroke end on the discharge cylinder portion 34 side is set at a position corresponding to the first inner diameter portion 53, that is, inside the first inner diameter portion 53. On the other hand, as shown in FIG. 2, when the discharge head 30 is rotated with respect to the base cap 20 and the discharge head 30 is moved upward with respect to the base cap 20, the foam discharge container 1 is in the wet mode. Thus, the movement stroke end of the switching member 50 on the discharge cylinder part 34 side by the defining member 51 inside the discharge cylinder part 15 is set at a position corresponding to the second inner diameter part 54, that is, inside the second inner diameter part 54. .

  As shown in FIG. 1, a reduced diameter portion 55 that is reduced in diameter downward is integrally provided at the lower end of the discharge cylinder portion 15, and the switching member 50 is prevented from falling downward by the reduced diameter portion 55. Further, when the switching member 50 is seated on the reduced diameter portion 55, the discharge cylinder portion 15 is closed with respect to the accommodation space 4a. On the other hand, when the container body 2 is changed from the standing posture with the mouth 3a on the upper side to the body 3b to the tilted posture with the mouth 3a on the lower side with respect to the body 3b, the switching member 50 is contracted. By separating from the diameter portion 55, the discharge cylinder portion 15 is opened, and the content liquid can be discharged from the storage space 4 a to the discharge cylinder portion 34 through the discharge cylinder portion 15.

  The foam discharge container 1 having such a configuration can be easily switched between the normal mode shown in FIG. 1 and the wet mode shown in FIG. 2 by a simple operation of simply rotating the discharge head 30 with respect to the base cap 20. it can.

  When the foam discharge container 1 is set to the normal mode and the liquid content is discharged in the form of foam, as shown in FIG. 3, the container body 2 is tilted with the mouth 3a on the lower side with respect to the body 3b. Then, the switching member 50 moves downward in the discharge cylinder portion 15, contacts the defining member 51 inside the first inner diameter portion 53, and is held at the position. When the body portion 3b of the container body 2 (outer layer body 3) is squeezed in this state, the content liquid stored in the inner layer body 4 is removed from the inner surface of the first inner diameter portion 53 of the discharge cylinder portion 15 and the switching member 50. The liquid flows through the gap between the surface and the discharge tube 34 and is supplied to the foam 35 through the liquid inlet 52a. That is, in the normal mode, as shown in FIG. 7A, a gap between the inner surface of the first inner diameter portion 53 and the outer surface of the switching member 50 serves as a flow path and is accommodated in the inner layer body 4. The liquid content is supplied to the discharge cylinder part 34 through the discharge cylinder part 15.

  Further, when the body portion 3b of the container body 2 is squeezed, the air inside the air chamber 5 is pressurized and air is supplied to the air flow path 25 from the vent hole 3c. As a result, as shown in FIGS. 3 and 4, the air inside the air flow path 25 is pressurized, and the first check valve 40 is elastically deformed so as to be separated from the upper surface of the inner plug body 11, and the first The check valve 40 is opened, and the air supplied to the air flow path 25 through the vent hole 3 c passes through the first check valve 40 and is supplied from the air inlet 36 to the foam 35.

  In this manner, when the body portion 3b is squeezed in a tilted posture in the normal mode and the content liquid is discharged, the content liquid is mixed with air in the foam 35 and foamed, and is directed outward from the tip of the discharge cylinder portion 34. Will be discharged in the form of bubbles. In this normal mode, the mixing ratio of air to the content liquid is preferably set to an optimum ratio at which fine fine bubbles are discharged from the discharge cylinder portion 34.

  As shown in FIG. 5, when the content liquid is discharged from the discharge cylinder portion 34 toward the outside by the squeeze of the body portion 3 b in the form of foam, the squeeze of the body portion 3 b is released and the container body 2 is returned to the standing posture. The switching member 50 moves downward due to its own weight and comes into contact with the reduced diameter portion 55, thereby preventing air from flowing into the inner layer body 4 through the discharge cylinder portion 15. Further, the first check valve 40 returns to the closed state in contact with the upper surface of the inner stopper main body 11 by its elastic force, and the suction of air and content liquid from the air inlet 36 toward the vent hole 3c is prevented. On the other hand, when the squeeze is released and the body portion 3b is restored to its original shape, the inside of the air chamber 5 is depressurized, so the second check valve 44 is opened and air is passed through the through hole 43 and the air supply hole 42. Outside air is introduced into the air chamber 5 through the flow path 25 and the vent hole 3c. As a result, the inner layer body 4 can be reduced in volume by the amount of the discharged content liquid to prevent the inflow of air into the inner layer body 4 and the deterioration of the content liquid can be suppressed.

  At this time, when the switching member 50 moves inside the first inner diameter portion 53 toward the reduced diameter portion 55, a negative pressure is generated inside the discharge cylinder portion 15 and the discharge cylinder portion 34. The foam-like content liquid at the front end side of the cylinder part 34 is drawn back (suck back) to the discharge cylinder part 15 side. Thereby, it is possible to prevent bubbles from remaining at the tip of the discharge cylinder portion 34 and dropping after the foam-like content liquid is discharged.

  On the other hand, when the foam discharge container 1 is set to the wet mode and the liquid content is discharged in the form of foam, the container body 2 has the mouth 3a below the barrel 3b as shown in FIG. When the tilting posture is set to the side, the switching member 50 moves downward inside the discharge cylinder portion 15, contacts the defining member 51 inside the second inner diameter portion 54, and is held at the position. In this state, when the body portion 3b of the container body 2 (outer layer body 3) is squeezed, the content liquid stored in the inner layer body 4 is separated from the inner surface of the second inner diameter portion 54 of the discharge cylinder portion 15 and the switching member 50. The liquid flows through the gap between the surface and the discharge tube 34 and is supplied to the foam 35 through the liquid inlet 52a. That is, in the wet mode, as shown in FIG. 7B, the gap between the inner surface of the second inner diameter portion 54 and the outer surface of the switching member 50 serves as a flow path and is accommodated in the inner layer body 4. The liquid content is supplied to the discharge cylinder part 34 through the discharge cylinder part 15.

  As described above, since the inner diameter of the second inner diameter portion 54 of the discharge cylinder portion 15 is larger than the inner diameter of the first inner diameter portion 53, the second inner diameter portion 54 in the wet mode shown in FIG. The flow path area between the inner surface and the outer surface of the switching member 50 is larger than the flow path area between the inner surface of the first inner diameter portion 53 and the outer surface of the switching member 50 in the normal mode shown in FIG. It is getting bigger. As a result, in the wet mode, more liquid is supplied to the foam 35 through the discharge cylinder 15 than in the normal mode. In both the normal mode and the wet mode, the supply amount of air supplied to the foam 35 when the content liquid is discharged does not change. Therefore, when the content liquid is discharged in the wet mode, the normal mode is used. The mixing ratio of the content liquid to the air is larger than when the content liquid is discharged. Therefore, by setting the foam discharge container 1 to the wet mode, the foam quality of the foam-like content liquid discharged to the outside from the discharge cylinder portion 34 contains more liquid than the good quality foam in the normal mode. It can be made into a wet foam.

  As described above, in the foam discharge container 1 of the present invention, by moving the discharge head 30 in the axial direction of the discharge cylinder part 15 with respect to the base cap 20, the flow area of the content liquid in the discharge cylinder part 15 is increased or decreased. Since the mixing ratio of the content liquid and air can be changed, the foam bubbles discharged from the discharge cylinder portion 34 with a simple operation of moving the discharge head 30 in the axial direction with respect to the base cap 20 can be changed. The quality can be changed easily.

  Further, the discharge head 30 is screw-coupled to the base cap 20, and the discharge head 30 is moved in the axial direction of the discharge cylinder portion 15 relative to the base cap 20 by rotating the discharge head 30. Therefore, the foam quality of the foam discharged from the discharge cylinder part 34 can be easily changed by a simple operation of simply rotating the discharge head 30.

  Further, the second inner diameter portion 54 is formed in a tapered shape in which the inner diameter gradually increases from the first inner diameter portion 53 side toward the discharge cylinder portion 34 side, so that the axial direction of the discharge head 30 with respect to the base cap 20 is achieved. According to the position, the flow area of the content liquid in the discharge cylinder part 15 is changed steplessly so that the foam quality of the foam discharged from the discharge cylinder part 34 is a high quality state and a state containing a large amount of liquid. Can be adjusted steplessly between.

  Further, since the discharge cylinder portion 15 has a reduced diameter portion 55 at the lower end of the first inner diameter portion 53, the discharge cylinder portion 15 is closed by the switching member 50 after the content liquid is discharged, and the content liquid and air are discharged. It is possible to prevent the gas from flowing into the inner layer body 4 through the cylindrical portion 15. Further, a sucking back function of the content liquid remaining in the discharge cylinder portion 34 is added with a simple configuration using the switching member 50 for switching the foam quality, and liquid dripping from the discharge cylinder portion 34 is prevented. be able to.

  Further, a partition wall 52 is provided in the discharge cylinder portion 34 adjacent to the discharge cylinder portion 15 side with respect to the foam 35, and a liquid introduction port 52 a that opens toward the foam body 35 is provided in the partition wall 52. Since the defining member 51 is provided integrally with the partition wall 52, the defining member 51 can be protruded into the discharge cylinder portion 15 with a simple configuration.

  The foam discharge container 1 can be provided with a mark that serves as a mark when the foam quality is switched. For example, in FIG. 8, the letter “N” indicating the position of the normal mode, the letters “WET” indicating the position of the wet mode, the letters “N” and “ A mark M1 composed of an arrow indicating a stepless switching position between the letters “WET” and the triangle indicating the position of the selected mode on the outer peripheral surface of the mounting outer peripheral wall 31 of the ejection head 30 is described. The case where the shape mark M2 is described is shown. By providing such marks M1 and M2, the operation of switching the foam quality by rotating the ejection head 30 can be performed easily and reliably.

  The foam discharge container 1 according to the present invention is not limited to the above embodiment, and various modifications can be made within the scope according to the claims.

  For example, in the embodiment, the second inner diameter portion 54 is formed in a tapered shape, but may be formed in a step shape with respect to the first inner diameter portion 53.

  In addition, the second inner diameter portion 54 can be configured in a plurality of steps having a larger inner diameter than the first inner diameter portion 53. Thereby, the foam quality of the discharged content liquid can be changed to a plurality of foam characteristics corresponding to the number of steps.

  Further, in the above-described embodiment, the air supply hole 42 and the second check valve 44 are provided in the base cap 20, but not limited to this, for example, the body 3 b of the outer layer body 3 and the bottom thereof (not shown) ) May be provided.

DESCRIPTION OF SYMBOLS 1 Foam discharge container 2 Container main body 3 Outer layer body 3a Mouth part 3b Body part 3c Vent hole 3d Male screw part 3e Groove part 4 Inner layer body 4a Storage space 5 Air chamber 10 Inner plug member 11 Middle plug body part 12 Seal wall 13 Edge wall 14 Through Hole 15 Discharge cylinder 20 Base cap 21 Outer peripheral wall 21a Female thread 22 Mounting cylinder 22a Male thread 23 Top wall 24 Internal peripheral wall 25 Air flow path 30 Discharge head 31 Mounting outer peripheral wall 31a Female thread 32 Upper wall 33 Seal wall 34 Discharge Cylindrical part 34a Upper cylindrical part 34b Lower cylindrical part 35 Foam 36 Air inlet 40 First check valve 41 Annular wall 42 Air supply hole 43 Through hole 44 Second check valve 50 Switching member 51 Regulation member 52 Bulkhead 52a Liquid introduction Port 53 First inner diameter portion 54 Second inner diameter portion 55 Reduced diameter portion M1, M2 Mark

Claims (5)

A foam discharge container for discharging the content liquid contained in the container body into a foam shape,
A squeezeable outer layer body comprising a vent in the mouth and forming an outer shell of the container body;
An inner layer body that is capable of containing a content liquid therein and is formed so as to be capable of volume-reducing deformation, is housed in the outer layer body, and forms an air chamber connected to the vent hole between the outer layer body;
An inner plug member that covers the opening of the inner layer body, and a discharge cylinder portion that communicates with the inside of the inner layer body, and an inner plug member that is attached to the opening end of the mouth;
A base cap that is attached to the mouth part and covers the mouth part and the inner plug member to form an air flow path connected to the vent hole between the mouth part and the inner stopper member;
A discharge cylinder part penetrating through the base cap and fitted into the discharge cylinder part so as to be relatively movable in the axial direction, a foam disposed inside the discharge cylinder part, and connected to the air flow path and the foamed An ejection head that has an air introduction port that opens toward the body, and is mounted on the base cap so as to be movable in the axial direction of the discharge cylinder portion with respect to the base cap;
A first check valve that is provided in the air flow path and allows air flow from the air hole toward the air inlet and prevents air flow from the air inlet toward the air hole;
A second check valve provided in an air supply hole communicating with the air chamber, allowing air flow from the air supply hole toward the air chamber and preventing air flow from the air chamber toward the air supply hole; When,
A switching member that is housed in the discharge tube portion so as to be movable in the axial direction of the discharge tube portion;
A regulating member provided on the ejection head and projecting into the discharge cylinder part to define a movement stroke end of the switching member on the discharge cylinder part side inside the discharge cylinder part;
A first inner diameter portion having an inner diameter larger than the outer diameter of the switching member and a second inner diameter portion having an inner diameter larger than the first inner diameter portion are provided on the inner surface of the discharge cylinder portion,
By moving the discharge head in the axial direction with respect to the base cap, a moving stroke end of the switching member on the discharge tube portion side is positioned inside the first inner diameter portion and the second inner diameter portion. A foam discharge container characterized in that it can be switched to a position inside.   The foam discharge according to claim 1, wherein the discharge head has a female screw portion that is screw-coupled to a male screw portion provided in the base cap and converts rotation of the discharge head into movement of the discharge head in an axial direction. container.   The foam discharge container according to claim 1 or 2, wherein the second inner diameter portion is formed in a tapered shape in which the inner diameter gradually increases from the first inner diameter portion side toward the discharge cylinder portion side.   The foam discharge container according to any one of claims 1 to 3, wherein the discharge cylinder part includes a reduced diameter part at a lower end of the first inner diameter part.   A partition wall is provided inside the discharge cylinder portion adjacent to the discharge cylinder portion side with respect to the foam, a liquid inlet opening toward the foam is provided in the partition wall, and the defining member is The foam discharge container of any one of Claims 1-4 provided integrally.

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