JP2017197265A - Foam discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam discharge container that has a suction-back function and can stably discharge fine foams.SOLUTION: This foam discharge container is provided with: a container body (10) the inside of which becomes a content liquid storage space (S); a cap (20) in which a nozzle inner flow path (23) becoming a content liquid flow path is defined; a cylinder (40) that is held in the cap (20); a check valve (50) that closes or opens a return flow path (31) for connecting the nozzle inner flow path (23) to the storage space (S) and that is provided to the outside of the cylinder (40); and a rib-shaped part (35) that comprises at least one plate-shaped rib (35a or 35b) extending along the nozzle inner flow path (23).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foam discharge container that can squeeze a body portion of a container body to mix the content liquid accommodated in the container body with air and discharge the liquid from a nozzle.

  For containers that contain liquids such as shampoos, body soaps, hand soaps, facial cleansers, etc., and liquids such as hair conditioners, the liquids contained in the container body are mixed with air and discharged from the nozzle in the form of bubbles. Such a foam discharge container is known.

  In such a foam discharge container, a confluence space for mixing the content liquid with air is provided in the flow path of the content liquid, and a foaming member made of, for example, a mesh is incorporated downstream of the confluence space, so that the trunk of the container body By compressing the liquid, the foaming member is allowed to pass through the foaming member while the content liquid is mixed with air, and is then discharged from the nozzle. Patent Document 1 discloses a foam ejection container as such a foam discharge container.

  In the foam discharge container described in Patent Document 1, after the content liquid is discharged from the nozzle tip opening, the content liquid remaining in the nozzle returns to the state of fluidity again and the liquid dripping occurs from the nozzle tip opening. In order to suppress the above, a suction back function is provided to draw back the liquid content remaining in the nozzle into the container body together with the outside air taken into the container body as the compressed body is restored. The suction back function disclosed in Patent Document 1 closes a through-hole provided in a flange of a cylinder that defines and forms a merging space at the time of foam discharge of the content liquid, and opens at the time of restoration of the body after the foam discharge of the content liquid This is realized by providing a check valve.

JP 2013-112411 A

  By the way, in order to make fine bubbles, the mixing ratio of the contents and air that passes through the foam member is one of the important factors. To maintain the foam quality constant, the mixing ratio is stable. It is necessary to keep in mind. However, in the foam discharge container having the suction back function as described above, when the discharge of the contents is continued by repeating the squeezing and restoration of the body part, the bubbles of the residual contents pulled back are filled in the container body, The air introduction hole that feeds air to the foam member may be covered, resulting in a decrease in the amount of air introduced or mixing of bubbles into the air, etc., resulting in a desired mixing ratio between the contents and air It changed from the ratio, and the foam quality sometimes deteriorated (the texture of the foam became rough). For this reason, even if it has a suction back function, the appearance of a new foam discharge container that can stably discharge fine foam has been strongly desired.

  Accordingly, an object of the present invention is to provide a foam discharge container having a suction back function and capable of stably discharging fine bubbles.

  The foam discharge container of the present invention comprises a container body having a flexible body, the inside of which is a storage space for the content liquid, and the contents attached to the mouth of the container body and connected to the discharge port inside the nozzle A cap in which an in-nozzle flow path serving as a liquid flow path is partitioned, a mixing chamber that is held by the cap and continues to the in-nozzle flow path, and an air introduction hole that connects the mixing chamber to the accommodation space; A cylinder that divides the liquid introduction hole and a return channel that is provided outside the cylinder and that connects the in-nozzle channel to the accommodation space, squeezes the barrel and discharges the liquid content from the discharge port. A check valve that is closed when the body portion is restored, and a rib-shaped portion including at least one rib that has a plate shape extending along the flow path in the nozzle. It is.

  Moreover, it is preferable that the foam discharge container of this invention is arrange | positioned so that the said rib shape part may be settled in the predetermined area | region except the front-end | tip side part of the said nozzle in the flow path in the said nozzle.

  In the foam discharge container of the present invention, it is preferable that the rib-shaped portion includes a plurality of the ribs arranged in directions orthogonal to each other.

  In the foam discharge container of the present invention, it is preferable that the rib-shaped portion includes a plurality of the ribs connected to each other.

  Furthermore, in the foam discharge container of the present invention, it is preferable that the rib-shaped portion is composed of a plurality of the ribs separated from each other.

  ADVANTAGE OF THE INVENTION According to this invention, while providing a suction back function, the foam discharge container which can discharge fine foam stably can be provided.

It is sectional drawing which shows the foam discharge container as one embodiment of this invention. It is AA sectional drawing of FIG. It is a figure which shows the modification of the rib formation part shown in FIG. 1 according to FIG. It is sectional drawing which shows the other modification of the rib formation part shown in FIG. 1 according to FIG. It is AA sectional drawing of FIG.

  Hereinafter, an embodiment of a foam discharge container according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

  The foam discharge container of the present embodiment accommodates a fluid content liquid and discharges the content liquid in a foam shape. In particular, this foam discharge container has various liquid cleaning agents for the body such as shampoos, body soaps, hand soaps, facial cleansers, cleansing agents, etc., hair styling agents, mouth washes, and various liquid cleaners for kitchens and baths. It is suitable for containing a content liquid containing a fragrance or an oil such as an agent or an edible liquid and discharging the content liquid in the form of foam.

  As shown in FIGS. 1 to 2, the foam discharge container 1 of the present embodiment includes a container body 10, a cap 20, a cylinder 40, and a check valve 50.

  The container body 10 is made of, for example, resin, and includes a mouth portion 11, a trunk portion 12, and a bottom portion (not shown), and defines a content liquid storage space S therein. The trunk portion 12 has flexibility, surrounds the periphery of the accommodation space S, the mouth portion 11 is formed continuously at one end of the trunk portion 12, and the bottom portion of the trunk portion 12 is formed. It is formed continuously at the other end. In the following description, “upper” means one end side where the mouth part 11 is located with respect to the body part 12, and “lower” means that the mouth part 11 is located with respect to the body part 12. The other end side opposite to the one end side, that is, the other end side where the bottom portion is located with respect to the body portion 12 is meant.

  The mouth part 11 has a cylindrical shape with an upper part opened. Further, the body portion 12 has a cylindrical shape such as an elliptical cylindrical shape that is continuous with the mouth portion 11. The bottom portion has a plate shape such as an elliptical plate shape that closes the lower end of the body portion 12. The container body 10 is configured to reduce the volume of the storage space S by compressing (squeezing) the flexible body 12 and pressurize the inside of the container body 10.

  For example, a resin cap 20 is attached to the mouth portion 11 of the container body 10. The cap 20 includes a nozzle 21, and the nozzle 21 defines a tip opening 22 serving as a discharge port for the content liquid and an in-nozzle flow channel 23 serving as a flow path for the content liquid connected to the tip opening 22. .

  The cap 20 includes a cylindrical outer peripheral wall 24 that surrounds the mouth portion 11 of the container body 10, and a female screw portion 24 a provided on the inner peripheral surface of the outer peripheral wall 24 is provided on the outer peripheral surface of the mouth portion 11. It is screwed and fixed to the mouth portion 11 of the container body 10 by being screwed to the male screw portion 11a. A seal cylinder portion 26 is coaxially and integrally provided on the inner side of the outer peripheral wall 24 via a flange portion 25, and the seal cylinder portion 26 is fitted inside the mouth portion 11, whereby the cap 20 and the mouth portion 11 are connected. The fitting portion is sealed to prevent liquid leakage from the portion. In FIG. 1 to FIG. 2, the alternate long and short dash line indicated by the symbol “O” is the central axis of the mouth portion 11 of the container body 10 and the outer peripheral wall 24 of the cap 20.

  A small protrusion 11b and a large protrusion 11c are provided at the base of the mouth portion 11 with a space therebetween in the circumferential direction, and a detent rib 24b corresponding to the protrusions 11b and 11c is provided at the lower end portion of the outer peripheral wall 24. It has been. When the cap 20 is screwed into the mouth portion 11, immediately before the screwing is finished, the rotation prevention rib 24 b gets over the small protrusion 11 b and is disposed between the small protrusion 11 b and the large protrusion 11 c, whereby the cap 20 is placed on the mouth portion 11. It is held against rotation.

  In the illustrated case, the cap 20 is fixed to the mouth portion 11 of the container main body 10 by screw connection, but the cap 20 can be fixed to the mouth portion 11 of the container main body 10 by undercutting.

  The seal cylinder part 26 extends to the upper side with respect to the flange part 25, and a step part 27 extending inward in the radial direction is integrally provided at the upper end part thereof. The inner surface of the stepped portion 27 facing downward in the figure is a downward stepped surface 27a formed flat and annular.

  A dome-shaped top wall 28 is connected to the inner peripheral edge of the stepped portion 27. The nozzle 21 is integrally provided on the top wall 28. The nozzle 21 is formed in a cylindrical shape (in this example, an elliptical cylindrical shape), and protrudes from the upper side of the bottom wall 29 provided horizontally at the bottom of the nozzle 21 toward the side slightly above the top wall 28. Yes. The bottom wall 29 is provided with a pair of outflow / inflow holes 30, and the in-nozzle flow path 23 communicates with the return flow path 31 through the outflow / inflow holes 30. The return channel 31 is provided outside the cylinder 40 and connects the in-nozzle channel 23 to the accommodation space S. Further, the bottom wall 29 is provided with a bubble outflow hole 32 for communicating the in-nozzle flow path 23 with the mixing chamber 42 of the cylinder 40. In the case shown in the figure, a pair of outflow / inflow holes 30 are provided with the bubble outflow hole 32 interposed therebetween, but the number and shape thereof can be variously changed.

  Further, a cylindrical connecting wall 33 is vertically suspended from the bottom wall 29 of the cap 20 so as to surround the bubble outflow hole 32. The connecting wall 33 is configured to be inserted and fitted into the cylinder main body portion 40a of the cylinder 40, whereby the cylinder 40 is suspended and held in the accommodation space S, and the mixing chamber 42 and the in-nozzle passage 23 are provided. Are connected. On the outer peripheral side of the connecting wall 33, an internal cylindrical wall 34 that is suspended from the bottom wall 29 and extends toward the annular flange portion 40 b of the cylinder 40 is provided.

  The cylinder 40 is made of, for example, a resin material, and has a cylindrical cylinder main body portion 40a that divides the mixing chamber 42 therein, and an annular flange portion 40b that extends radially outward from the vicinity of the upper end of the cylinder main body portion 40a. And.

  The cylinder 40 defines a mixing chamber 42 connected to the nozzle flow path 23 of the cap 20 and also defines an air introduction hole 43 and a liquid introduction hole 44 that connect the mixing chamber 42 to the accommodation space S of the container body 10. doing.

  Specifically, a hole forming portion 41 is fitted and fixed to the lower end of the cylinder main body portion 40 a of the cylinder 40, and the hole forming portion 41 introduces air to the lower end side of the cylinder 40 together with the cylinder main body portion 40 a of the cylinder 40. The hole 43 and the liquid introduction hole 44 are partitioned. The air introduction hole 43 communicates the mixing chamber 42 with the accommodation space S, and the air in the accommodation space S is introduced into the mixing chamber 42 through the air introduction hole 43. On the other hand, a tube 45 extending to the bottom of the container body 10 is connected to the liquid introduction hole 44, and the liquid introduction hole 44 communicates the mixing chamber 42 with the accommodation space S through the tube 45. Accordingly, the content liquid in the storage space S is introduced into the mixing chamber 42 via the tube 45 and the liquid introduction hole 44. In addition, the structure which introduce | transduces a content liquid and air into the mixing chamber 42 from the storage space S is not restricted to the structure of this embodiment, It is possible to change suitably according to the shape etc. of a container.

  Further, the hole forming portion 41 is integrally provided with an umbrella body 46 for suppressing the intrusion of the content liquid from the air introduction hole 43. However, the present invention is not limited to this configuration. It is also possible to adopt a configuration that does not include.

  A pair of foam members 47 are provided in the mixing chamber 42 of the cylinder 40. As these foaming members 47, for example, those having a structure in which a mesh is fixed to an end face of a ring as shown in the figure can be used. In the illustrated case, the foam member 47 is fitted and fixed to the inside of the cylinder body 40a in a posture in which the meshes are directed to the opposite sides. The foam member 47 is not limited to a structure having a ring and a mesh, and for example, a porous body such as a sintered body and other various structures are selected according to the type of the content liquid. Can do. Further, the number of foam members 47 to be installed can be variously changed according to the type of the content liquid.

  Outside the cylinder 40, a return channel 31 is provided that is separate from the channel passing through the inside of the cylinder 40 and connects the in-nozzle channel 23 to the accommodation space S of the container body 10. That is, the in-nozzle flow path 23 communicates with the accommodation space S of the container body 10 through the return flow path 31.

  The return flow path 31 is provided with a check valve 50 made of an elastic material. The check valve 50 closes the return flow path 31 and squeezes the body portion 12 when the body portion 12 of the container body 10 is squeezed to discharge the liquid content from the tip opening 22 of the nozzle 21. Opens the return channel 31.

  The check valve 50 has a stepped surface 27 a of the cap 20 as a valve seat, and is normally connected to the annular valve body 51 that is in contact with the stepped surface 27 a and the valve body 51, and the inner cylindrical wall 34 of the cap 20. And an inward flange 53 that protrudes radially inward from the lower end of the annular main body 52. In the present embodiment, the stepped surface 27a is used as a valve seat, but depending on the configuration of the cap 20, it can also be provided in another part.

  With such a configuration, the check valve 50 prevents the flow of the content liquid and the air from the accommodation space S of the container body 10 to the nozzle 21 (nozzle channel 23) through the return channel 31. It can operate to allow the flow of the liquid contents and air from the nozzle 21 (nozzle flow path 23) through the return flow path 31 to the storage space S side of the container body 10.

  Here, the foam discharge container 1 includes a rib-shaped portion 35 disposed so as to be within a predetermined region excluding the tip end portion 21 a of the nozzle 21 in the nozzle inner flow path 23. The rib-shaped portion 35 extends from the upper end to the lower end of the nozzle 21 at the center in the width direction of the nozzle 21 and has a plate-like vertical rib 35a extending along the nozzle flow path 23, and from both side surfaces of the vertical rib 35a. Each includes a pair of horizontal ribs 35b that extend in the horizontal direction to reach the side walls of the nozzle 21 and extend along the nozzle flow path 23. The rib-shaped portion 35 is formed integrally with the nozzle 21. However, the rib-shaped portion 35 may be configured separately from the nozzle 21 and fixed by being inserted into and fitted in the nozzle 21.

  By adopting a configuration including such a rib-shaped portion 35, when the check valve 50 is opened along with the restoration of the body portion 12 of the container main body 10, the remaining foam-like shape in the tip-side portion 21 a of the nozzle 21. While the content liquid can be pulled back to prevent the occurrence of liquid dripping, the foamed content liquid is hardly pulled back by the resistance of the rib-shaped portion 35 in the predetermined region excluding the tip end portion 21a of the nozzle 21, and the return flow The amount of foam-like content liquid returned from the path 31 to the accommodation space S can be reduced.

  Therefore, according to the foam discharge container 1 of the present embodiment, when the discharge of the contents is continued by repeatedly squeezing and restoring the body portion 12 of the container body 10, the foam of the residual content that is pulled back is the container body 10. It is possible to suppress the occurrence of the conventional problem that the storage space S is filled and the air introduction hole 43 that feeds air to the foaming member 47 is covered, resulting in a reduction in foam quality.

  The rib-shaped portion 35 of the present embodiment is configured such that the vertical rib 35a and the pair of horizontal ribs 35b are connected to each other. For example, as shown in FIG. The ribs 35b 'may be separated from each other. In the modification of FIG. 3, the vertical rib 35 a ′ has a plate shape that extends from the upper end to the lower end of the nozzle 21 at the center in the width direction of the nozzle 21 and extends along the in-nozzle flow path 23. The pair of lateral ribs 35 b ′ each have a plate shape that extends from both side walls of the nozzle 21 to the front in the horizontal direction of the nozzle 21 and extends along the nozzle flow path 23. The rib-shaped portion 35 ′ (vertical rib 35 a ′ and pair of horizontal ribs 35 b ′) is formed integrally with the nozzle 21.

  In addition, the rib-shaped portion 35 of the present embodiment extends to the base end portion of the nozzle 21, but as shown in FIGS. 4 to 5, the rib-shaped portion 35 may extend to a position before reaching the base end portion of the nozzle 21. Good. 4 to 5, the rib-shaped portion 35 ″ includes a plate-like horizontal rib 35 b ″ extending between both side walls of the nozzle 21 and extending along the nozzle flow path 23, and the horizontal rib 35 b. And a vertical rib 35a that extends from the upper surface to the upper end of the nozzle 21 and extends along the nozzle flow path 23. The rib-shaped portion 35 ″ is configured as a separate member from the nozzle 21, and is fixed by being inserted and fitted into the nozzle 21.

  The foam discharge container according to the present invention is not limited to the configuration specified in the above-described embodiment, and various modifications can be made without departing from the gist of the invention described in the claims. is there. For example, the above-described rib-shaped portion of the foam discharge container is disposed so as to be within a predetermined region excluding the tip end portion of the nozzle in the nozzle flow path, but is not limited to such a configuration. It suffices if they are arranged in the predetermined area. In this case as well, a certain degree of suction back function is exhibited, while the return of the foam to the accommodation space can be suppressed, and the deterioration of the foam quality during continuous discharge can be suppressed.

  Moreover, the rib shape part of the foam discharge container mentioned above should just consist of at least 1 rib which makes | forms the plate shape extended along a flow path in a nozzle. Further, when the rib-shaped portion includes a plurality of ribs, these ribs may not be arranged in directions orthogonal to each other, and may be arranged, for example, parallel or inclined to each other.

  In addition, at least one rib constituting the rib-shaped portion of the foam discharge container described above has a smooth surface that does not have a through-hole or a concavo-convex portion (that is, a groove, a ridge, a depression, or a projection or a desired combination thereof). However, as long as the object of the present invention can be achieved, at least one through hole or uneven portion may be provided at a predetermined position.

  The rib-shaped portion of the foam discharge container described above may be formed integrally with the peripheral wall of the nozzle, or may be formed separately and fixed to the peripheral wall of the nozzle by fitting or adhesion. Good.

  Furthermore, the rib-shaped portion of the present invention can also be applied to caps other than the above-described configuration. For example, as shown in FIG. You may apply to the cap comprised so that a communication state could be switched.

1: Foam discharge container 10: Container body 11: Mouth part 11a: Male thread part 11b: Small protrusion 11c: Large protrusion 12: Body part 20: Cap 21: Nozzle 21a: Tip end portion 22 of nozzle: Distal opening (discharge opening)
23: Nozzle flow path 24: Outer peripheral wall 24a: Female thread part 24b: Rib 25: Flange part 26: Seal cylinder part 27: Step part 27a: Step surface 28: Top wall 29: Bottom wall 30: Outflow / inlet hole 31: Return Channel 32: Bubble outlet hole 33: Connection wall 34: Internal cylindrical walls 35, 35 ′, 35 ″: Rib-shaped portions 35a, 35a ′, 35a ″: Vertical ribs 35b, 35b ′, 35b ″: Horizontal ribs 40: Cylinder 40a: Cylinder body 40b: Annular flange 41: Hole forming part 42: Mixing chamber 43: Air introduction hole 44: Liquid introduction hole 45: Tube 46: Umbrella 47: Foam member 50: Check valve 51: Valve Body 52: annular main body 53: inward flange O: central axis S: accommodation space

Claims (5)

A container body having a flexible barrel, the inside of which is a storage space for the content liquid;
A cap attached to the mouth portion of the container body, and a cap in which a flow path in the nozzle serving as a flow path of the content liquid connected to the discharge port is partitioned inside the nozzle;
A cylinder that is held by the cap and defines a mixing chamber that communicates with the flow path in the nozzle, and that defines an air introduction hole and a liquid introduction hole that communicates the mixing chamber with the accommodation space;
A return flow path provided outside the cylinder and connecting the flow path in the nozzle to the accommodation space is closed when the body portion is squeezed to discharge the content liquid from the discharge port, A check valve that opens upon restoration,
A foam discharge container comprising: a rib-shaped portion including at least one rib having a plate shape extending along the flow path in the nozzle.   2. The foam discharge container according to claim 1, wherein the rib-shaped portion is disposed so as to be within a predetermined region excluding a tip side portion of the nozzle in the flow path in the nozzle.   The foam discharge container according to claim 1 or 2, wherein the rib-shaped portion includes a plurality of the ribs arranged in directions orthogonal to each other.   The foam discharge container according to any one of claims 1 to 3, wherein the rib-shaped portion includes a plurality of the ribs connected to each other.   The foam discharge container according to any one of claims 1 to 3, wherein the rib-shaped portion includes a plurality of the ribs separated from each other.

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