JP4917002B2 - Foam ejection container - Google Patents

Description

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

  For products that contain various liquid detergents such as shampoos, body soaps, hand soaps, facial cleansers, etc. and hair conditioners such as set lotions, the inside of the dispensing pump from the viewpoint of simplifying use by omitting the foaming action There are many products that incorporate foaming mechanisms and make the contents foamy immediately before pouring.

This type of product is also applied to small containers that are convenient to carry. As prior art in this regard, a gas-liquid mixing chamber consisting of a mixer and a net holder is formed in the cap, and the container body is squeezed. There is known a foam discharge container in which a liquid is introduced into a gas-liquid mixing chamber together with air taken in from an air introduction passage through a dip tube, foamed, and discharged from the tip of an overcap (for example, see Patent Document 1).
Japanese Patent No. 2934145

  By the way, in the above conventional foam discharge container, the air to be mixed with the liquid is directly introduced into the gas-liquid mixing chamber through the lower end of the cap, so the mixing of the air and the liquid may be insufficient. However, there was still room for improvement when it was intended to stably discharge fine bubbles with fine texture.

  An object of the present invention is to propose a novel foam ejection container that enables the contents having fluidity to be discharged as fine-textured foams and reliably avoids leakage of the contents regardless of the container posture. By the way.

The present invention has a container body having a squeezable body part and forming a filling space for the contents inside thereof, and a body which is installed inside the container body and which can be expanded and contracted along with the squeeze of the body part. An air-filling inner container having a portion, and a foam ejection container including a nozzle that is connected to each of the container body and the inner container, foams by mixing air into the contents, and discharges,
The nozzle has a cylindrical portion for introducing air into the inner container, and the contents between the inner body and the cylindrical portion that hold the inner container suspended in the filling space of the container main body via the base portion. An exterior body that is disposed in the base cap so as to be slidable along the axis of the nozzle and forms a discharge path for the object; Consisting of a foam member fixed to one side,
An opening for blowing air in the inner container toward the inlet side of the foam member is provided in the cylindrical portion of the interior body,
A foam ejection container characterized in that a passage is provided at the base of the interior body for opening and closing the contents inside the container body by sliding over the top and bottom of the exterior body, and discharging and stopping the contents toward the entry side of the foam member. is there.

  The cylindrical portion of the inner body is supported via an elastic member and abuts against the valve seat to always close the internal passage. On the other hand, only after the squeeze operation is stopped, the outside air is separated from the valve seat and flows into the inner container. It is preferable to provide a valve body to be introduced into the.

  Moreover, it is preferable that the foam member is provided with a valve body that covers and conceals the entire surface of the outlet end and opens only when the container main body is pressurized during the squeeze operation.

  Furthermore, it is desirable to dispose a protective cylinder surrounding the inner container at the base of the interior body, leaving a discharge route for the contents.

  An inner container filled with air is arranged inside the container body, and the contents pass through the foamed member together with sufficient air, so that fine foam can be discharged stably.

  By sliding the exterior body, it is possible to reliably block the passage through which the contents pass, preventing the contents from entering the inner container during the distribution of the product, and the container body to fall Even if it is placed, no liquid leaks. By disposing a valve body that covers the entire surface of the outlet end of the foam member, it is possible to reliably prevent the contents contained in the foam member from leaking out.

  By surrounding the inner container with a protective cylinder, it is possible to eliminate damage to the inner container and inadequacies in assembly when handling the contents when filling, refilling, or changing the contents. (Reduction of materials).

  Further, the pushing amount of the container body when squeezing can be regulated by the protective cylinder (when the barrel of the container body is pushed, the side wall constituting the trunk of the container body comes into contact with the protective cylinder and the trunk Can no longer be pushed in.), So the contents can be dispensed quantitatively.

  When the contents are discharged, the air flow passage is reliably blocked by the check valve, so that the mixing ratio of the contents and air is made constant.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view showing an embodiment of a foam ejection container according to the present invention.

  Reference numeral 1 in the figure has a squeezable body, and a container body that forms a filling space M for contents (liquid) inside thereof, 2 is a nozzle that mixes and foams air and contents, and 3 This is a base cap attached to the mouth 1a of the container body 1. The base cap 3 is provided with a cylindrical body 3a that stands on its top wall, and the nozzle 2 is held so as to be slidable up and down along the cylindrical body 3a.

As shown in FIG. 2, the nozzle 2 is composed of an interior body 2a, an exterior body 2b, and a foamed member 2c. Among the constituent members of the nozzle 2, the interior body 2a transmits air to the inner container 4 A cylindrical portion 2a ₁ to be introduced into the tube, an annular base portion 2a ₂ integrally connected to the end of the cylindrical portion 2a ₁ , and a lower end opening of the base portion 2a ₂ are fitted into the inner container 4 by an engagement means such as an undercut C. It consists holder 2a ₃ to stopper holding the mouth 4a of. A gap for passing the contents is formed on the mating surface of the base 2a ₂ and the holder 2a ₃ by the vertical ribs e provided on either one, and this gap bypasses the contents to circulate. Constitutes the road.

The exterior body 2b has a cross-sectional shape that tapers toward the tip, and is disposed outside the interior body 2a, and an outer cylinder 2b ₁ that forms a discharge path r with the interior body 2a, The outer cylinder 2b ₁ is constituted by an adapter 2b ₂ which is fitted to the end portion of the outer cylinder 2b ₁ and forms a peripheral wall n inside thereof.

The adapter 2b ₂ of the exterior body 2b is provided with an annular groove 5 opened downward, and a cylindrical body 3a formed on the top surface of the base cap 3 is fitted into the annular groove 5 so as not to be detached. The nozzle 2 slides up and down along the axis L within the range of the height h of the cylindrical body 3a.

The foam member 2c is composed of rings 2c ₁ and 2c ₂ provided with meshes S ₁ and S ₂ . A valve body 2c ₃ fitted and fixed in a groove 6 formed in the inner wall of the outer cylinder 2b ₁ is disposed at the outlet end of the foam member 2c so as to cover the entire area of the foam member 2c. A foam member 2c is sandwiched and fixed between a cylindrical body 7 provided on the upper surface of the adapter 2b ₂ and the valve body 2c ₃ . As the foam member 2c, a porous body formed of a sintered body, a foam, or the like can be used. Foamed member 2c is slid in accordance with the sliding of the outer body 2b, it may be fixed to the cylindrical portion 2a _1.

Further, reference numeral 8 in the figure is an opening provided in the cylindrical portion 2a ₁ for blowing air in the inner container 4 toward the inlet side of the foam member 2c. The opening 8 is particularly preferable that a plurality of radially formed at equal intervals around the cylindrical portion 2a _1, is illustrated as a cut-out shape that penetrates the inside and outside at the lower edge of the base portion 2a _2. 9 is a passage provided in the base 2a ₂ of the interior body 2a, which opens and closes by sliding across the exterior body 2b to discharge and stop the contents in the container body 1 toward the entry side of the foam member 2c. . The passage 9 is slid by a peripheral wall 10 integrally formed on the base 2a ₂ and a peripheral wall n provided on the adapter 2b ₂ in accordance with the slide of the exterior body 2b. It is formed by matching t ₁ and t ₂ .

11 is a discharge path cap which closes the r, 12 is disposed inside the cylindrical portion 2a ₁ valve body screwed to the contents of the tip of the exterior body 2b. An elastic member 12a provided the valve body 12 to the upper end of the holder 2a _3, made from the valve portion 12b integrally connected to the distal end of the elastic member 12a, the valve portion 12b is formed inside the cylindrical portion 2a ₁ The inner passage is always closed by abutting against the valve seat d, and the valve portion 12b is separated from the valve seat d only after the squeeze operation is stopped to introduce outside air into the inner container 4.

Furthermore, 13 knob portion provided on the outer peripheral wall of the outer body 2b, 14 is a protective cylinder shown in the example are integrally connected to the side wall of the base 2a _2. As shown in FIG. 1, the entire cross section of the protective cylinder 14 is arranged so as to surround the inner container 4, and damage (breaking, etc.) is caused when components are assembled or the container body 1 is replaced. The wall surface is provided with a window hole 14a (including a slit shape, the shape of which is arbitrarily set) for forming a discharge path for contents.

  The foam ejection container according to the present invention has a push-pull structure that opens and closes the passage 9 through which the contents pass by sliding the exterior body 2b of the nozzle 2 up and down along the axis L, particularly in the distribution stage of goods. In this case, it is possible to reliably prevent the contents from entering the inner container, and there is an advantage that liquid leakage can be surely avoided even when the container is placed in a fallen state.

  In discharging the contents in the container body 1, first, after removing the cap 11, grasping the knob 13 and sliding the exterior body 2b to the state shown in FIG. 3 to open the passage 9, Next, the container body 1 is tilted or inverted to squeeze the body 1b.

While the body 1b squeezes, the contents in the container body 1 reach the entry side of the foamed member 2c through the gap formed between the holders 2a ₃ and the base 2a ₂ by the vertical ribs e and the passages 9; inner container 4 of the air inside passage of the holder 2a _3, through the inner passage and the opening 8 of the cylindrical portion 2a ₁ reaches the entry side of the foam member 2c, is caused to foam the contents thereof in the foam member 2c valve body 2c Passing through ₃ , it becomes a fine foam and is discharged from the tip of nozzle 2.

After squeezing the container body 1 (release of the pushing force applied to the body part of the container body 1), outside air is introduced into the inner container 4a through the internal passage of the cylindrical part 2a ₁ and restored to its original state. Then, with respect to the container body 1, outside air is introduced through the passage 9 and the detour (passage formed by the vertical rib e) to restore the original state.

  An inner container 4 for supplying air is placed in the container body 1, and the inner container 4 is surrounded by a protective cylinder 14 to damage the inner container 4 when filling the contents, refilling, replacing, etc. In addition, since the protective cylinder 14 functions as a stopper for restricting the amount of squeezing (pushing amount) of the body portion during the squeeze operation, quantitative discharge and stable squeeze are possible.

The protective cylinder 14 and the base 2a ₂ can be configured as a single unit, thereby reducing the number of parts.

  The inner container 4 is shown as an example of a thin bottle formed by biaxial stretch blow molding or the like, but it is also possible to apply a pouch type container or a sleeve tube type container equipped with a spout. It is not limited.

The valve body 2c ₃ completely covers the outlet end of the foam member 2c before the container body 1 is squeezed. For example, the container is placed in an inverted state before use (before squeezing). In this case, even if the container is left in an overturned state for a long time, the contents do not ooze out, and it is possible to reliably prevent dripping.

The illustrated valve body 2c ₃ is provided with an annular protrusion on its outer edge, and is fitted and fixed to a groove 6 formed on the inner wall of the exterior body 2b ₁ to displace the inner opening. However, you may apply the valve body which fixes an inner opening part and can displace an outer edge part, and can change suitably about this point. As a member constituting the valve body 2c _3, for example, soft polyolefin, NBR, elastomer, rubber, or the like, which is a soft material, can be used. The foam member 2c may be omitted depending on circumstances.

  It is possible to provide a bubble ejection container that does not cause leakage of contents during the distribution of goods (invasion of contents into the inner container) or liquid leakage when the container is overturned.

It is the figure which showed embodiment of the foam ejection container according to this invention in the cross section. FIG. 2 is an enlarged view of a main part of FIG. It is the figure which showed the state which opened the channel | path by sliding the nozzle.

Explanation of symbols

1 Container body
2 nozzles
3 Base cap
4 Inner container
5 Annular groove
6 Groove
7 cylinder
8 Opening
9 Passage
10 wall
11 cap
12 Disc
13 Pick section
14 Protective cylinder
L shaft core

Claims (4)

A container body that has a squeezable body and forms a filling space for the contents inside thereof, and an air that is installed inside the container body and has a body that can be expanded and contracted in line with the squeeze of the body A foam ejection container comprising a filling inner container, a container body and an inner container, each having a nozzle that foams and discharges by mixing air into the contents,
The nozzle has a cylindrical portion for introducing air into the inner container, and the contents between the inner body and the cylindrical portion that hold the inner container suspended in the filling space of the container main body via the base portion. An exterior body that is disposed in the base cap so as to be slidable along the axis of the nozzle and forms a discharge path for the object; Consisting of a foam member fixed to one side,
An opening for blowing air in the inner container toward the inlet side of the foam member is provided in the cylindrical portion of the interior body,
A foam ejection container characterized in that a passage for performing opening and closing of the contents in the container body toward the entry side of the foam member and stopping thereof by opening and closing by sliding over the top and bottom of the exterior body is provided at the base of the interior body.   The cylindrical portion is supported via an elastic member and abuts against the valve seat to constantly close the internal passage, while only after the squeeze operation is stopped, the cylinder portion is separated from the valve seat and introduces outside air into the inner container. 2. The foam ejection container according to claim 1, comprising a valve body.   3. The foam ejection container according to claim 1 or 2, wherein the foamed member has a valve body that covers and conceals the entire surface of the outlet end and is opened only when the container main body is pressurized during a squeeze operation.   4. The foam ejection container according to claim 1, wherein a protective cylinder that surrounds the inner container is disposed at a base portion of the interior body so as to leave a content discharge path.

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