JP2013052879A - Foam discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam discharge container that has a suction back functionality while capable of stable discharging of fine foam.SOLUTION: The foam discharge container mixes content thereof and air by squeezing a trunk portion 12 of a container body 10, generates the foam, and discharge the content from the tip of a nozzle 40. At the nozzle 40, a through-hole 36c is formed which communicates with a discharge path H and a filling space M of the container body 10, and guides outside air and the residual content inside the discharge path H into the filling space M. Further, shield walls 23 covering an air flow hole 21a except an opening at a bottom side are provided at a cylinder 20.

Description

  The present invention relates to a foam ejection container that foams and discharges fluid contents (liquid, gel, etc.) by squeezing a flexible body.

  As a container that contains various liquid detergents such as shampoos, body soaps, hand soaps, facial cleansers, and hair conditioners such as set lotions, the flow of the contents is from the viewpoint of simplifying use by omitting the foaming operation. A foam member made of, for example, a mesh is incorporated in the road, and by compressing the flexible trunk, the contents and air are mixed and passed through the foam member to cause foaming. There has been proposed a foam ejection container that discharges the contents that have become from the nozzle outlet (see, for example, Patent Document 1).

  In the foam ejection container as described above, the foamed content remains in the nozzle discharge path in addition to the amount discharged from the jet outlet, but the remaining content is Over time, the bubbles disappeared and the contents returned to the original contents having fluidity. Therefore, after a while after use, the contents sometimes dropped from the spout. This is particularly noticeable in the horizontal-type foam ejection container in which the ejection port is provided on the side surface of the nozzle.

  In order to avoid such dripping, an outside air introduction hole for restoring the squeezed body part is provided in the discharge path of the contents, together with the outside air taken into the container body as the body part is restored. There is known a foam ejection container provided with a back suction function for returning the remaining contents into the container body.

Japanese Utility Model Publication No. 58-174272

  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 ejection container having the back suction function as described above, when the discharge of the contents is continued by repeating the squeezing and restoration of the body part, the foam of the residual contents pulled back fills the container body, The rate at which the mixing ratio of the contents and air is expected due to the fact that the inflow hole that feeds air to the foamed member may be blocked, resulting in a decrease in the amount of inflow of air or the inclusion of bubbles in the air. And the foam quality was sometimes deteriorated (coarse foam or watery foam). For this reason, even if it has a back suction function, the appearance of a new bubble ejection container that can stably discharge fine bubbles has been strongly desired.

  An object of the present invention relates to a foam ejection container that foams and discharges contents, and has a back suction function, and proposes a foam ejection container that can stably discharge fine foam and is easy to use. It is in.

The present invention includes a flexible container body having a body portion that rises from the bottom, the inside of which is a filling space for the contents, a suction pipe for the contents, and an air inflow hole. A cylinder that defines a confluence space between the contents and air, a base cap that is fixedly held at the mouth of the container body, and that holds the cylinder suspended from the mouth; and a base cap that is integrally connected to the base cap A nozzle that forms a discharge path connected to the merge space on the inside, and the contents and air are mixed and foamed in the merge space by squeezing the barrel, and the contents are allowed to flow from the tip of the nozzle to the outside. A bubble ejection container
The nozzle is connected to the discharge path and the filling space to form a through hole for introducing outside air and the residual contents in the discharge path into the filling space;
The foam ejection container according to claim 1, wherein the cylinder is provided with a shielding wall that covers the inflow hole while leaving a bottom side opening.

  It is desirable that the shielding wall includes a tongue piece provided at least on the opening side of the through hole.

  It is desirable to provide the tongue piece with a pair of barriers that prevent the inflow of contents around the side edge toward the inflow hole.

Since the through-hole for introducing the outside air and the remaining contents in the discharge path into the filling space is formed in the nozzle provided with the discharge path of the content by communicating the discharge path with the filling space of the container body, the back suction function It is possible to effectively prevent the liquid from dripping from the tip opening of the nozzle.
In addition, since a cylinder with an air inflow hole for mixing and foaming with the contents is provided with a shielding wall covering the inflow hole leaving the bottom side opening, the foam returned to the filling space through the through hole There is no possibility that the residual content containing the liquid flows directly into the inflow hole, and the probability that the inflow hole is blocked by the foam of the content can be sufficiently reduced. Thereby, the mixing ratio of the contents and air can be maintained at a desired ratio, and fine bubbles can be stably discharged.

  When the shielding wall is provided with a tongue provided at least on the opening side of the through-hole, the inflow hole on the side where the through-hole opens, which may cause the residual contents to flow directly, is minimized. Since it can be effectively covered with a large-sized shielding wall, an increase in the component cost can be suppressed as much as possible while sufficiently exhibiting the effect of stably discharging fine bubbles.

  If the tongue piece is provided with a pair of barriers that prevent the inflow of the contents around the side edge toward the inflow hole, the inflow hole is less likely to be blocked by the foam of the contents. The desired foam content can be discharged stably and continuously.

Embodiment of the foam ejection container according to this invention is shown, (a) is a fragmentary sectional view of the principal part, (b) is an arrow line view from the arrow A shown to (a). It is sectional drawing which follows BB shown in FIG. It is a figure which shows the state which made the back suction function act about the foam ejection container shown in FIG. The other embodiment of the foam ejection container according to this invention is shown, (a) is a fragmentary sectional view of the principal part, (b) is an arrow line view from the arrow C shown to (a). It is sectional drawing which follows DD shown in FIG. It is a figure which shows the state which made the back suction function act about the foam ejection container shown in FIG.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 shows an embodiment of a foam ejection container according to the present invention, (a) is a partial cross-sectional view of the main part, (b) is an arrow view from arrow A shown in (a), 2 is a cross-sectional view taken along line BB shown in FIG. 1, and FIG. 3 is a view showing a state in which the back suction function is applied to the foam ejection container shown in FIG.

  In FIG. 1, the code | symbol 10 is a container main body. The container main body 10 has a cylindrical mouth portion 11 having an open top, and a tubular body portion 12 connected to a bottom portion (not shown) is connected to the mouth portion 11, and a content filling space M is formed inside thereof. Is forming. Here, the trunk portion 12 has flexibility formed by, for example, a synthetic resin. A screw portion 11 a is formed on the outer surface wall of the mouth portion 11.

  Reference numeral 20 denotes a cylinder that is suspended and held in the mouth portion 11 by a base cap described later. In the illustrated example, the cylinder 20 includes a bottomed cylindrical cylinder body 21 and a cylindrical fitting portion 22 that is integrally connected to the bottom of the cylinder body 21. The fitting portion 22 is fitted with a suction pipe p that sucks the contents of the filling space M by squeezing the body portion 12. Further, at the bottom of the cylinder body 21, at least one hole (inflow hole 21a) penetrating the front and back of the fitting portion 22 in the radial direction is provided (in the illustrated example, four holes are equally arranged in the circumferential direction). ing. In the illustrated example, an annular wall 21b that is integrally connected to the cylinder body 21 and surrounds the inflow hole 21a is provided, and further, a tongue that is provided by continuously hanging a part of the annular wall 21b at the lower end. The pieces 21c are integrally connected. Thereby, the shielding wall 23 which consists of the annular wall 21b and the tongue piece 21c will cover the inflow hole 21a in the state which opened the bottom part side. In the illustrated example, a check valve 21d that covers a through-hole described later is integrally connected to the upper portion of the cylinder body 21 on the side where the tongue piece 21c is provided. The cylinder 20 includes a positioning rib 21e that protrudes radially outward from the cylinder body 21 and has a rectangular shape in the example shown in FIG. Although not shown in a side view, the positioning rib 21e protrudes upward from the upper end of the cylinder body 21.

  A base cap 30 is provided at the mouth 11 of the container body 10. The base cap 30 includes a ring-shaped top wall 31 located at the top of the mouth portion 11, and an outer wall 32 that surrounds the outside of the mouth portion 11 and hangs down is integrated with an outer edge of the top wall 31. It is connected. On the inner surface of the outer wall 32, a screw portion 32 a that engages with the screw portion 11 a of the mouth portion 11 is provided. In addition, a seal wall 33 is provided at the inner edge of the top wall 31 so as to hang down along the inner surface of the mouth portion 11 and maintain a liquid-tight state therebetween. As a result, the base cap 30 is fixed and held detachably by sealing the mouth portion 11. In the illustrated example, the base cap 30 is fixedly held by screws, but may be fixedly held by undercutting.

  The base cap 30 includes an annular upper wall 34 that rises from the inner edge of the top wall 31 and a top wall 35 that covers the upper wall 34. Here, the base cap 30 is provided with a cylindrical nozzle 40 integrally connected to the upper wall 34 and the top wall 35 and extending laterally, and provided with a tip opening 41 serving as a content outlet at the tip. . Furthermore, the base cap 30 includes an inner cylinder 36 that is suspended from the top wall 35 and is integrally connected to the rear end side of the nozzle 40. The inner cylinder 36 is inserted and fitted into the cylinder main body 21 to suspend and hold the cylinder 20. Further, as shown in FIG. 2, the inner cylinder 36 has a recess 36a corresponding to the positioning rib 21e of the cylinder 20 formed upward from its lower end, although not shown in a side view. Moreover, as shown in FIG. 1, the convex part 36b is provided in the upper part. Thereby, the cylinder 20 inserted into the inner cylinder 36 is held non-rotatably by the positioning rib 21e fitted to the recess 36a, and the expected height is obtained by abutting the upper end of the cylinder 20 against the projection 36b. It is positioned and held by.

  By attaching the cylinder 20 to the base cap 30, a vertical merge space G and a horizontal discharge path H connected to the merge space G are formed inside the cylinder 20. Here, the inner cylinder 36 on the rear end side of the nozzle 40 is provided with a through hole 36c that allows the discharge path H and the filling space M of the container body 10 to communicate with each other. This through hole 36 c is closed from the outside of 36.

  In the merging space G, a foam member 50 is provided that is sandwiched between a ring-shaped step d provided inside the cylinder body 21 and the lower end of the inner cylinder 36 in the illustrated example. The foam member 50 includes a ring 51 and a mesh 52 fixed to the end surface. The foamed member 50 can be foamed by passing the mixed contents of air through the foam member 50. In addition, the installation number of the foaming member 50, the coarseness of the mesh 52, etc. are suitably changed according to the kind of content.

  In the foam ejection container configured as described above, the filling space M is pressurized under the action of the check valve 21d as the body part 12 is squeezed, and the contents pass through the suction pipe p into the merge space G. It reaches. Similarly, the pressurized air reaches the merge space G through the inflow hole 21a. The contents foamed to the expected foam quality by passing both the contents and air through the foaming member 50 are ejected from the tip opening 41 of the nozzle 40 via the discharge path H. Thereafter, when the squeezing of the body portion 12 is released, the flexible body portion 12 is restored to its original shape. As a result, the filling space M becomes negative pressure, and the foamed residual content in the discharge path H opens the check valve 21d and passes through the through hole 36c together with the outside air as shown in FIG. Introduced into M. Here, since the inflow hole 21a is covered and hidden by the shielding wall 23 including the annular wall 21b and the tongue piece 21c except for the bottom side, there is no possibility that the residual content flows directly into the inflow hole 21a. The probability that the inflow hole 21a is blocked by the foam of the contents is sufficiently reduced. Thereby, the mixing ratio of the contents and air can be maintained at a desired ratio, and fine bubbles can be stably discharged.

  In addition, although the shielding wall 23 may be comprised only by the annular wall 21b, it is preferable to provide at least the tongue piece 21c provided in the through-hole 36c side like illustration. In this case, the tongue piece 21c may be directly connected to the cylinder body 21 without providing the annular wall 21b. Thereby, the inflow hole 21a on the side where the through hole 36c is opened, which may cause the residual contents to flow directly, can be effectively covered with the shielding wall 23 having the minimum size. Further, the shielding wall 23 and the check valve 21d may be separated from the cylinder 20 and provided as separate members.

  4-6 is a figure which shows other embodiment of the foam ejection container according to this invention, Comprising: It is a pair with a both-sides side edge of the tongue piece 21c with respect to the foam ejection container shown in FIGS. 1-3. A barrier wall 21f is provided, the shielding wall 23 is formed by the annular wall 21b, the tongue piece 21c, and the barrier 21f, the inner cylindrical body 36 is connected to the upper wall 34, a vertical through hole 36c is provided, and a check valve is further provided. 21d is bent and arranged. The residual content introduced from the through hole 36c may flow around the side edge of the tongue piece 21c, which is relatively close to the inflow hole 21a. By providing the barrier 21f, the content is prevented from being circulated. Therefore, the blocking of the inflow hole 21a is less likely to occur, and the desired foam content can be discharged stably and continuously. Further, the shielding wall 23 and the check valve 21d may be separated from the cylinder 20 and provided as separate members.

  The check valve 21d only needs to close the through hole 36c, and is not limited to the shape shown in FIGS.

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

DESCRIPTION OF SYMBOLS 10 Container main body 11 Mouth part 12 Body part 20 Cylinder 21 Cylinder main body 21a Inflow hole 21b Annular wall (23 shielding wall)
21c tongue (23 shielding wall)
21f Barrier (23 shielding wall)
30 Base cap 36c Through hole 40 Nozzle M Filling space G Merge space H Discharge path p Suction pipe

Claims (3)

A flexible container body that has a body that rises from the bottom and has a content filling space inside, a suction pipe for the content, and an air inflow hole. And a base cap that is fixedly held at the mouth portion of the container body, and is suspended and held at the mouth portion, and is integrally connected to the base cap and is joined to the inside of the base cap. A nozzle that forms a discharge path that leads to the space, and by mixing and foaming the contents and air in the merging space by squeezing the body part, the foam is ejected from the tip of the nozzle to the outside An ejection container,
The nozzle is connected to the discharge path and the filling space to form a through hole for introducing outside air and the residual contents in the discharge path into the filling space;
A foam ejection container, wherein the cylinder is provided with a shielding wall that covers the inflow hole while leaving a bottom side opening.   The foam ejection container according to claim 1, wherein the shielding wall includes a tongue piece provided at least on an opening side of the through hole.   The foam ejection container according to claim 2, wherein the tongue piece is provided with a pair of barriers that prevent the contents from flowing into the inflow hole around the side edge.

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