JP2017193374A - Foam discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam discharge device 100 capable of forming a molded article of foam which has a desired three-dimensional shape with higher ornamental design property.SOLUTION: A foam discharge device comprises: a storage part for storing a liquid formulation; a foamer mechanism for making the liquid formulation foam for generating a foam body; and a discharge part for discharging the foam body. The discharge part comprises: a foam passage chamber in which the foam body passes; and one or plural discharge port formation wall parts 82 which protrude from the foam passage chamber, formed into a closed loop shape in view from a protrusion direction, whose inner space is communicated with the foam passage chamber, and whose tip end has a discharge port 83. The discharge port formation wall part 82 has a first wall part (for example, a circular part 823) and a second wall part (for example, a circular part 822). Adhesion property of the foam body to a tip end edge (for example, a lower edge 821) of the first wall part is higher than adhesion property of the foam body to a tip end edge (for example, a lower edge 821) of the second wall part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a foam ejection device and a foam ejection component.

There has been proposed a foam discharge device that mixes various liquid materials (liquid agents) such as hand soaps, facial cleansers, dishwashing detergents, and hairdressing agents with air to form bubbles.
For example, the bubble discharge device described in Patent Document 1 has a plurality of discharge ports, and the position of each discharge port is formed so as to form a foam shaped object imitating a character by a single pressing operation of the nozzle head. And the diameter is set.

JP 2010-149060 A

  However, with the technique of Patent Document 1, it is only possible to form a foam-shaped object having a simple shape.

  The present invention has been made in view of the above-described problems, and relates to a foam ejection device and a foam ejection component capable of forming a desired three-dimensional foam model with higher design.

  The present invention includes a storage unit that stores a liquid agent, a former mechanism that foams the liquid agent to generate a foam, and a discharge unit that discharges the foam. The discharge unit passes through the foam. One or a plurality of bubble passage chambers that protrude from the bubble passage chamber, are formed in a closed loop shape when viewed from the protruding direction, the internal space communicates with the bubble passage chamber, and a discharge port is formed at the tip. The discharge port forming wall portion includes a first wall portion and a second wall portion, and the adhesiveness of the foam to the tip edge of the first wall portion is The present invention provides a foam discharge device that is stronger than the adhesiveness of the foam to the leading edge of the second wall.

  In addition, the present invention is a foam discharge component that is attached to a foam discharge device that includes a storage unit that stores a liquid agent and a former mechanism that foams the liquid agent to generate a foam and discharges the foam. And projecting from one surface of the plate-shaped portion and formed in a closed loop shape when viewed from the projecting direction, the internal space communicating with the space on the other surface side of the plate-shaped portion and the tip One or a plurality of discharge port forming wall portions in which discharge ports are formed, and the discharge port forming wall portion includes a first wall portion and a second wall portion, The present invention provides a foam discharge component in which the adhesiveness of the foam to the leading edge is stronger than the adhesiveness of the foam to the leading edge of the second wall.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to form the modeling thing of the desired solid shape foam with higher designability.

It is explanatory drawing which shows the structure of the foam discharge apparatus which concerns on 1st Embodiment. It is typical sectional drawing which shows an example of the structure of the former mechanism and discharge part of the foam discharge apparatus which concern on 1st Embodiment. It is a figure which shows the foam discharge component of the foam discharge apparatus which concerns on 1st Embodiment, Among these, (a) is a bottom view, (b) is the side view seen from the arrow B direction of (a), (c) is It is the perspective view seen from the lower surface side. It is a figure which shows the foam discharge component of the foam discharge apparatus which concerns on the modification 1 of 1st Embodiment, Among these, (a) is a bottom view, (b) is the side view seen from the arrow B direction of (a), (C) is the perspective view seen from the lower surface side. It is a figure which shows the foam discharge component of the foam discharge apparatus which concerns on the modification 2 of 1st Embodiment, Among these, (a) is a bottom view, (b) is the side view seen from the arrow B direction of (a), (C) is the perspective view seen from the lower surface side. It is a figure which shows the foam discharge component of the foam discharge apparatus which concerns on 2nd Embodiment, Among these, (a) is a bottom view, (b) is the side view seen from the arrow B direction of (a), (c) is It is the perspective view seen from the lower surface side. It is a figure which shows the modification of the cross-sectional shape of the lower end part of a discharge port formation wall part, (a) is the modification 1, (b) is the modification 2, (c) is the modification 3, respectively. Show. It is a side view of the foam discharge apparatus which concerns on 3rd Embodiment. It is a figure which shows the example of the molded object of foam. It is a figure which shows the example of the molded object of foam.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that in all the drawings, the same components are denoted by the same reference numerals, and redundant description will be omitted as appropriate.

[First Embodiment]
First, the first embodiment will be described with reference to FIGS. 1 to 3 and FIG. 9.
As shown in FIG. 1, a foam discharge device 100 according to this embodiment includes a storage unit 10 that stores a liquid agent 70, a former mechanism 21 (FIG. 2) that foams the liquid agent 70 to generate a foam, and a foam And a discharge section 20 that discharges water.
As shown in FIG. 2, the discharge part 20 protrudes from the bubble passage chamber 209 through which the foam passes and the bubble passage chamber 209, and is formed in a closed loop shape when viewed from the protruding direction, and the internal space communicates with the bubble passage chamber 209. And one or a plurality of discharge port forming wall portions 82 each having a discharge port 83 formed at the tip thereof.
The discharge port forming wall portion 82 includes a first wall portion (for example, a circular portion 823 shown in FIG. 3) and a second wall portion (for example, a circular portion 822 shown in FIG. 3). The foam adherence to the leading edge (for example, the lower edge 821) of the first wall is stronger than the foam adherence to the leading edge (for example, the lower edge 821) of the second wall. Hereinafter, the adhesiveness of the foam to the lower edge 821 of the discharge port forming wall portion 82 may be simply referred to as adhesiveness.

In the present specification, the discharge port forming wall portion 82 indicates not only individual discharge port forming wall portions 82 each having a closed loop shape but also a collective concept of a plurality of discharge port forming wall portions 82. is there.
In the case of this embodiment, the protruding direction of the discharge port forming wall portion 82 from the bubble passage chamber 209 is downward, and the lower direction is the direction from the bubble passage chamber 209 to the discharge port 83 in FIG. The downward direction is not limited to the vertically downward direction, and includes, for example, a direction having an inclination of 5 degrees or less with respect to the vertical direction.
Since the protruding direction of the discharge port forming wall portion 82 from the bubble passage chamber 209 is downward, the leading edge of the discharge port forming wall portion 82 is a lower edge 821. Further, the discharge port forming wall portion 82 being formed in a closed loop shape when viewed from the protruding direction means that the discharge port forming wall portion 82 is formed in a closed loop shape in plan view.

Foam adherence is the degree of ease of foam adherence due to surface tension. The stronger the adherence, the easier it is to adhere. Further, the adhesiveness of the foam means the adhesiveness per unit length in the circumferential direction of the discharge port forming wall portion 82.
The adhesive strength of the foam is such that when the discharge port forming wall portion 82 is separated from the foam discharged from the discharge port 83, the discharge port forming wall portion 82 moves relative to the foam. This can be determined by evaluating how much the foam is pulled by the discharge port forming wall portion 82. That is, the longer the distance that the foam is pulled by the discharge port forming wall portion 82, the stronger the adhesion of the foam to the lower edge 821 of the discharge port forming wall portion 82. More specifically, when the discharge port forming wall portion 82 is separated from the foam discharged from the discharge port 83 when the protruding direction of the discharge port forming wall portion 82 is downward (for example, a discharge of a hand or the like). The discharge port forming wall 82 is moved relatively upward with respect to the foam (by lowering the foam together with the object). In this way, when separating the discharge port forming wall portion 82 from the foam, the longer the distance that the foam is pulled up, the longer the foam adheres to the leading edge (lower edge 821) of the discharge port forming wall portion 82. Strong nature.
In addition, the determination of the strength of the adhesiveness of the foam is not limited to the above example. For example, first, a test piece including the tip edge of the discharge port forming wall portion 82 is cut out from the discharge port forming wall portion 82 of the foam discharge device 100. Then, after the test piece is pressed against the foam, when the test piece is lifted, the distance that the foam is pulled upward by the test piece is measured, and the longer the measured distance, the more the foam adheres. It can also be determined that the nature is strong.

A typical example of the liquid 70 to be foamed is a hand soap, but is not limited to this. A facial cleanser, a cleansing agent, a dish detergent, a hairdressing agent, a body soap, a shaving cream, a foundation, and beauty. Examples include various cosmetics for skin, such as liquids, hair dyes, disinfectants, creams applied to bread, and the like used in foam.
As the liquid agent 70, it is preferable to use a liquid having a viscosity of 1 mPa · s to 15 mPa · s.

As illustrated in FIG. 1, the foam discharge device 100 includes, for example, a housing 60 and various components provided in the housing 60. These components include a storage unit 10, a discharge unit 20, a liquid pump (solution supply actuator) 30, a gas pump (gas supply actuator) 40, a control unit 50, a detection unit 51, and the like. These components are accommodated in the housing 60, for example. Further, for example, a former mechanism 21 is integrated with the discharge unit 20 (see FIG. 2).
Note that the vertical direction in the description of the configuration of the foam ejection device 100 indicates the direction when the foam ejection device 100 is installed, and the ejection port forming wall portion 82 passes through the foam while the foam ejection device 100 is installed. It hangs down below the chamber 209. Moreover, the discharge direction of the foam from the discharge part 20 is the same as the protrusion direction of the discharge port formation wall part 82 from the bubble passage chamber 209, and in this embodiment, the discharge direction of the foam from the discharge part 20 is Down. Also in other embodiments and modifications described later, the discharge direction of the foam from the discharge unit 20 is the same as the protruding direction of the discharge port forming wall portion 82 from the bubble passage chamber 209, for example, downward. .

In FIG. 1, the housing 60 has a schematic side surface shape, and the discharge unit 20 and the detection unit 51 have a schematic arrangement (arrangement in the housing 60) when the foam discharge device 100 is viewed from the side. ing.
Moreover, in FIG. 1, about the liquid pump 30, the gas pump 40, and the control part 50, the block structure is shown.
The housing 60 includes, for example, a main body part 61 and a head part 62 supported by the main body part 61. The head portion 62 is provided integrally with the upper portion of the main body portion 61 and protrudes horizontally from the upper portion of the main body portion 61 to be in an overhanging state. The direction in which the head portion 62 protrudes from the main body portion 61 is defined as the front.
For example, the storage unit 10 is stored in the main body 61. The head unit 62 is provided with the ejection unit 20. The detection unit 51 may be provided on either the main body unit 61 or the head unit 62. Further, the liquid pump 30, the gas pump 40, and the control unit 50 may be stored in any of the main body unit 61 and the head unit 62.
The discharge part 20 discharges a foam from the lower surface of the head part 62, for example. In other words, the foam discharge device 100 is installed, for example, in such a direction that the surface on which the foam is discharged in the head unit 62 is the lower side.
A part or the whole of the ejection unit 20 may protrude downward from the lower surface of the head unit 62.
Similarly, a part of the detection unit 51 may protrude downward from the lower surface of the head unit 62. Further, the detection unit 51 may be provided not on the head unit 62 but on the main body unit 61 side.
For example, the back surface (right surface in FIG. 1) or the side surface (the back surface or the near surface in FIG. 1) of the main body 61 may be fixed to the wall surface. It may be placed on a table such as.
The reservoir 10 can be a bottle container having, for example, a bottomed cylindrical bottle body that stores the liquid 70 and a cap that is detachably attached to the bottle neck of the bottle body. . The reservoir 10 is filled with a liquid agent 70. That is, the foam discharge device 100 includes the liquid agent 70 filled in the storage unit 10.
The housing 60 is configured so that the storage unit 10 can be attached to and detached from the housing 60, for example. As a method of replenishing the liquid agent 70 to the foam discharge device 100, a method of exchanging the reservoir 10 with a new one, a method of filling the bottle body with the liquid agent 70 with the cap removed from the mouth-neck portion of the bottle body, etc. Is mentioned.

The foam discharge device 100 further includes a suction pipe 31 inserted into the storage unit 10 and connected to the liquid pump 30, and a liquid supply pipe connecting the liquid pump 30 and the former mechanism 21 (FIG. 2). 32, and an air supply pipe 41 connecting the gas pump 40 and the former mechanism 21.
The liquid pump 30 sucks the liquid agent 70 in the storage unit 10 via the suction pipe 31 and sends the liquid agent 70 to the former mechanism 21 via the liquid supply pipe 32. On the other hand, the gas pump 40 sucks the atmosphere (that is, air) around the gas pump 40 and sends the air to the former mechanism 21 via the air supply pipe 41.
In the former mechanism 21, the liquid agent 70 is bubbled by mixing the liquid agent 70 sent from the liquid pump 30 and the air sent from the gas pump 40. Then, the foamed liquid agent 70 is discharged from the discharge unit 20.

The detection unit 51 is a sensor that detects a discharge target that is a discharge target of the foam. As the detection unit 51, various detection methods can be used. For example, a transmission sensor such as a photoelectric sensor, a reflection sensor, a capacitance sensor, a contact sensor, or an ultrasonic sensor can be used. .
Examples of the discharge target include user's hands, various applicators such as sponges and brushes, tableware, food, beverages poured into the tableware, and the like. In the following description, it is assumed that the discharge target is a hand.
In the case of this embodiment, the detection part 51 detects a discharge target object, and the discharge trigger used as the trigger of discharge of the foamed liquid agent generate | occur | produces. When the discharge trigger occurs, the operation of the liquid pump 30 and the gas pump 40 stops after the liquid pump 30 and the gas pump 40 operate so that a predetermined amount of foam is discharged from the discharge unit 20. .

The liquid pump 30 and the gas pump 40 operate under the control of the control unit 50, and supply the liquid agent 70 and air to the discharge unit 20, respectively.
The control unit 50 includes a ROM (Read Only Memory) that stores and holds control programs for the liquid pump 30 and the gas pump 40, a CPU (Central Processing Unit) that executes control operations according to the control program, And a RAM (Random Access Memory) functioning as a work area or the like.
Note that the power source of the control unit 50, the detection unit 51, the liquid pump 30, and the gas pump 40 of the foam discharge device 100 may be a commercial power source or a battery.

Next, an example of the configuration of the former mechanism 21 and the discharge unit 20 will be described with reference to FIG. Here, in order to simplify the explanation, each configuration of the ejection unit 20 may be described based on the positional relationship shown in FIG. 2, but the positional relationship of each configuration in this description is based on the bubble ejection device 100. The positional relationship between the components of the former mechanism 21 and the discharge unit 20 at the time of use is not always the same.
As shown in FIG. 2, the former mechanism 21 includes a gas inlet 201 through which gas (air) is introduced through the air supply pipe 41, and a liquid agent inlet 205 through which the liquid agent 70 is introduced through the liquid supply pipe 32. ,have.
The air introduced into the former mechanism 21 through the gas inlet 201 is supplied to the mixing unit 207 of the mixing chamber 208 through the gas front chamber 202 and the narrow gas passage 203 in this order.
On the other hand, the liquid agent 70 introduced into the discharge unit 20 through the liquid agent introduction port 205 is supplied to the mixing unit 207 of the mixing chamber 208 through the narrow liquid agent passage 206.
By mixing the liquid 70 and air in the mixing unit 207, the liquid 70 becomes a coarse foam.
A mesh 210 is provided downstream of the mixing chamber 208. The coarse foam is passed through the mesh 210 to become a fine and uniform foam and is introduced into the foam passage chamber 209 of the discharge unit 20.

  As described above, in the present embodiment, the foam discharge device 100 includes the liquid agent supply actuator (liquid pump 30) that supplies the liquid agent 70 from the storage unit 10 to the former mechanism 21, and the gas supply that supplies gas to the former mechanism 21. And a controller 50 that controls the operation of the gas supply actuator and the liquid agent supply actuator. And a foam is produced | generated by supplying the liquid agent 70 and gas to the former mechanism 21 under control of the control part 50. FIG.

The former mechanism 21 and the discharge unit 20 are provided integrally with each other to constitute a discharge unit 200.
The discharge unit 200 includes, for example, a cap member 220 having a cylindrical cylindrical portion 221 whose upper end is closed by a closed portion 222, a cylindrical member 230, a flow path configuration outer sleeve 240, and a flow path configuration inner sleeve. 250 and a flow path constituting core body 260.
The closed portion 222 of the cap member 220 is formed with a tubular portion having the gas introduction port 201 projecting upward and an insertion hole through which the tubular portion having the liquid agent introduction port 205 is inserted. Has been.
The cylindrical member 230 includes a cylindrical outer cylinder portion 231 and an upper portion of a double cylinder structure having a cylindrical inner cylinder portion 232 having a smaller diameter than the outer cylinder portion 231, and a cylindrical shape having a diameter larger than that of the outer cylinder portion 231. The holding portion 234 and the top surface portion 235 that closes the upper end of the holding portion 234 are configured.
The space inside the holding part 234 constitutes the bubble passage chamber 209. The bubble passage chamber 209 communicates with the arrangement region of the mesh 210 through an opening formed at the center of the top surface portion 235.
The outer cylindrical portion 231 of the cylindrical member 230 and the cylindrical portion 221 of the cap member 220 are fixed to each other by a fixing direction such as screwing.
The flow path constituting outer sleeve 240 is formed to include a plurality of stages of cylindrical portions whose inner and outer diameters change in a plurality of stages in the axial direction (vertical direction) of the flow path constituting outer sleeve 240. In other words, the inner and outer diameters of the flow path forming outer sleeve 240 change stepwise so that the inner and outer diameters increase toward the bottom. The flow path forming outer sleeve 240 has, for example, a four-stage cylindrical portion, and a liquid agent inlet 205 is formed inside the uppermost (and therefore the smallest diameter) cylindrical portion. Further, the upper portion of the inner cylindrical portion 232 is disposed in the lowermost cylindrical portion of the flow path configuration outer sleeve 240 in the vicinity of the inner peripheral surface of the cylindrical portion.
The flow path forming inner sleeve 250 is formed in a cylindrical shape, and is fitted to the inner cylindrical portion 232 so that the outer peripheral surface of the flow path forming inner sleeve 250 is in close contact with the inner peripheral surface of the inner cylindrical portion 232. ing. However, the upper part of the flow path constituting inner sleeve 250 projects upward from the inner cylinder part 232. The upper part of the flow path constituting inner sleeve 250 is arranged from the inside of the lowermost cylindrical part of the flow path constituting outer sleeve 240 to the vicinity of the upper end of the second cylindrical part from the bottom.
The flow path constituting core body 260 is formed in a columnar shape and is arranged coaxially with the flow path constituting outer sleeve 240. More specifically, for example, the flow path constituting core 260 is formed from the inside of the second-stage cylindrical portion of the flow path constituting outer sleeve 240 to the upper end of the lowermost cylindrical portion of the flow path constituting outer sleeve 240. It is arrange | positioned over the inside of a part. The lower part of the flow path constituting core 260 is arranged inside the upper part of the flow path constituting inner sleeve 250. The flow path constituting core body 260 is held by, for example, the flow path constituting outer sleeve 240.

The gas passage 203 includes an inner peripheral surface of the cylindrical portion at the lowest stage and the second step from the bottom in the flow path configuration outer sleeve 240, an outer peripheral surface of the upper portion of the inner cylinder portion 232, and an outer periphery of the upper portion of the flow path configuration inner sleeve 250. It is formed by a gap between the surface and the surface.
Further, the liquid agent passage 206 is formed by a gap between the inner peripheral surface of the second cylindrical portion from the top in the flow path constituting outer sleeve 240 and the upper outer peripheral face of the flow path constituting core 260. For example, the liquid agent passage 206 is divided into a plurality of lines.
Further, the mixing chamber 208 is constituted by the internal space of the flow path constituting inner sleeve 250. The opening at the lower end of the flow path constituting inner sleeve 250 is closed by the mesh 210. The mixing unit 207 is the upper end of the mixing chamber 208, and the downstream end of the liquid agent passage 206 and the downstream end of the gas passage 203 merge at the mixing unit 207.
In addition, the gas front chamber 202 is an interval between the closed portion 222 and the closed portion 233, and protrudes below the closed portion 222 in the inner peripheral surface of the outer cylinder portion 231 and the flow path configuration outer sleeve 240. It is comprised by the clearance gap between the outer peripheral surface of the part and the outer peripheral surface of the lower part of the inner cylinder part 232. The gas front chamber 202 has, for example, a flat cross section formed in an annular shape.
The former mechanism 21 is configured to include at least the gas passage 203, the liquid agent passage 206, the mixing chamber 208 (the mixing chamber 208 includes the mixing unit 207) and the mesh 210 among the above-described configurations.

The discharge unit 20 further includes a foam discharge component 80 held by the holding unit 234 in a state where the opening on the lower surface side of the holding unit 234 is closed.
The foam discharge component 80 includes a plate-like portion 81 that defines the lower end of the bubble passage chamber 209, and one or more discharge port forming wall portions 82 that are suspended from the lower surface 81 a of the plate-like portion 81. As described above, the bubble passage chamber 209 has a bottom portion formed of the plate-like portion 81, and the discharge port forming wall portion 82 is formed on the bottom portion (the discharge port forming wall portion 82 projects from the bottom portion).
The foam discharge component 80 is held by the holding unit 234 in a posture in which the plate-like portion 81 is horizontal. The holding | maintenance part 234 hold | maintains the foam discharge component 80 so that attachment or detachment is possible.
More specifically, the plate-like portion 81 is formed in a circular shape in plan view, and the foam discharge component 80 is an annular protrusion that is a ring-like protrusion in plan view standing up from the peripheral edge of the plate-like portion 81. 88 and a plurality of locked projections 89 projecting outward from the peripheral edge of the plate-like portion 81 in the radial direction of the plate-like portion 81.
On the other hand, on the lower surface side of the holding portion 234, a foam discharge component is formed by engaging a slit-like insertion hole 237 that is circular in a plan view and into which the annular protrusion 88 is inserted, and the locked protrusion 89. And an annular locking portion 236 that holds 80. By pulling the foam discharge component 80 downward, the locking portion 236 is unlocked from the locked projection 89, and the foam discharge component 80 can be removed from the holding portion 234. Further, by pushing up the foam discharge component 80 in a state where the annular protrusion 88 is aligned with the insertion hole 237, the locking portion 236 is locked to the locked protrusion 89, and the bubble discharge is performed. The component 80 can be held by the holding unit 234.
Further, a mesh 270 may be provided on the upper surface 81b of the plate-like portion 81 as shown in the figure.
For example, the former mechanism 21 and the discharge unit 20 are configured as described above. However, the discharge unit 20 and the former mechanism 21 are not limited to the structures described here, and may have other structures.

Thus, the mesh 210 (porous body) is arrange | positioned at the exit of the mixing chamber 208 with which air and the liquid agent 70 are mixed. The foam generated in the mixing chamber 208 passes through the mesh 210 and flows into the foam passage chamber 209, passes through the foam passage chamber 209, and then passes through the inside of the discharge port forming wall portion 82. It is discharged from the discharge port 83 at the front end (for example, the lower end).
Here, as described above, the former mechanism 21 includes the mixing chamber 208 in which the liquid agent 70 and air are mixed. The maximum value of the cross-sectional area perpendicular to the foam discharge direction of the bubble passage chamber 209 (in this embodiment, the flat cross-sectional area) is the cross-sectional area perpendicular to the discharge direction of the mixing chamber 208 (this embodiment). The sum of the maximum values of the cross-sectional areas (flat cross-sectional areas in this embodiment) that are larger than the maximum value of the flat cross-sectional area in the embodiment and that are orthogonal to the discharge direction of the internal space of each discharge port forming wall portion 82. Greater than the value.
Therefore, the maximum value of the cross-sectional area of the bubble passage chamber 209 is larger than the cross-sectional area perpendicular to the discharge direction of the outlet of the mixing chamber 208 (in this embodiment, a flat cross-sectional area). In addition, the maximum value of the cross-sectional area of the bubble passage chamber 209 is larger than the cross-sectional area of a portion of the mixing chamber 208 adjacent to the bubble passage chamber 209 (the lower end portion of the mixing chamber 208 in the present embodiment). The total value of the cross-sectional areas perpendicular to the discharge direction in the internal space of the portion adjacent to the bubble passage chamber 209 in the discharge port forming wall portions 82 (the upper end portion of the discharge port forming wall portions 82 in this embodiment) is The cross sectional area of the bubble passage chamber 209 is smaller than the maximum value (flat cross sectional area in the present embodiment). Further, an internal space of a portion adjacent to the bubble passage chamber 209 in each discharge port forming wall portion 82 (in the case of this embodiment, the upper end portion of each discharge port forming wall portion 82 and formed at the bottom portion of the bubble passage chamber 209). The total value of the cross-sectional areas perpendicular to the discharge direction is smaller than the area of the bottom of the bubble passage chamber 209 formed by the plate-like portion 81.
For this reason, in the process in which the foam passes through the inside of the mixing chamber 208, the foam passage chamber 209, and the discharge port forming wall portion 82 in this order and is discharged from the discharge port 83, the flow path area of the foam is reduced from the mixing chamber 208 to the bubble. Once it flows out to the passage chamber 209, it is once enlarged and then narrowed down when it flows from the bubble passage chamber 209 to the discharge port forming wall portion 82.
As a result, each of the discharge port forming wall portions 82 (in the case of the present embodiment, one discharge port forming wall portion 82) is sufficiently filled with foam, and the discharge port 83 at the lower end of the discharge port forming wall portion 82 is filled. A foam can be discharged. For this reason, the foam of a desired shape can be discharged from each discharge port 83 (one discharge port 83 in the case of this embodiment) more reliably, and the aggregate of the foam discharged from the discharge port 83 It is possible to make the foam model 91 (FIGS. 9A and 9B) a desired three-dimensional shape.
In addition, the plane cross-sectional area of the bubble passage chamber 209 may be the same at any position in the foam discharge direction in the bubble passage chamber 209, or changes depending on the position of the foam passage in the discharge direction. Also good.
Preferably, a cross-sectional area perpendicular to the discharge direction (a flat cross-sectional area in the present embodiment) of a portion adjacent to the discharge port forming wall portion 82 in the foam passage chamber 209 (the lower end portion of the foam passage chamber 209 in the present embodiment). ) Is larger than the sum of the maximum values of the cross-sectional areas (flat cross-sectional areas in this embodiment) orthogonal to the discharge direction of the internal space of each discharge port forming wall portion 82.
Here, the cross-sectional area of the internal space of the discharge port forming wall portion 82 is a cross-sectional area of a closed region surrounded by a circular shape continuous by the discharge port forming wall portion 82 in a cross section orthogonal to the discharge direction. .
Further, in the present embodiment, the number of the discharge port forming wall portions 82 is one, and therefore the total value of the cross-sectional areas of the internal spaces of the discharge port forming wall portions 82 is the internal space of one discharge port forming wall 82. Is the cross-sectional area. However, the present invention is not limited to this example, and the number of discharge port forming wall portions 82 may be plural. In this case, the total value of the cross-sectional areas of the internal spaces of the discharge port forming wall portions 82 is This is the total value of the cross-sectional areas of the internal spaces of the plurality of discharge port forming wall portions 82.

Next, the foam discharge component 80 will be described in more detail with reference to FIG.
As shown in FIG. 3, the foam discharge component 80 includes a disk-shaped plate-shaped portion 81 and a discharge port forming wall portion 82 that protrudes from the lower surface 81 a of the plate-shaped portion 81. In the case of this embodiment, for example, as shown in FIG. 3, the number of discharge port forming wall portions 82 is one.

In the case of the present embodiment, the foam ejection component 80 is for forming a foam model 94 (FIGS. 9A and 9B) having a shape simulating a snowman. FIG. 9A is a plane image obtained by imaging the foamed article 94 actually formed using the foam discharge component 80 shown in FIG. 3, and FIG. 9B is the direction of the arrow B in FIG. It is the side image which imaged the foam modeling thing 94 from the side surface direction.
As shown in FIG. 3A, the discharge port forming wall portion 82 includes a circular portion 822 for forming a snowman head portion 94a (FIG. 9) and a circular portion for forming a snowman trunk portion 94b. 823. The circular portion 822 is connected to the circular portion 823 via a connecting portion 86 having a slit shape in plan view, and the internal spaces of the two circular portions 822 and 823 communicate with each other via the internal space of the connecting portion 86. . The circular portion 823 is formed to have a larger planar dimension than the circular portion 822.
The discharge port forming wall portion 82 that forms one discharge port 83 has a non-circular shape in plan view. The discharge port forming wall portion 82 includes a combination of a small circular portion 822, a large circular portion 823, and a connecting portion 86, which are different shapes in plan view. Note that the circular portion 822 and the circular portion 823 have different planar dimensions, and thus are positioned as different shapes in this specification.

  More specifically, the front edge of the first wall portion has a larger width dimension in the thickness direction than the front edge of the second wall portion. That is, the lower edge 821 of the circular portion 823 has a larger width dimension in the thickness direction than the lower edge 821 of the circular portion 822. Thereby, the adhesiveness of the foam to the lower edge 821 of the circular portion 823 is stronger than the adhesiveness of the foam to the lower edge 821 of the circular portion 822.

  More specifically, the leading edge of the first wall portion is formed in an uneven shape, and the leading edge of the second wall portion is formed flat. That is, the lower edge 821 of the circular portion 823 is formed in an uneven shape, and the lower edge 821 of the circular portion 822 is formed flat. Also by this, the adhesiveness of the foam to the lower edge 821 of the circular portion 823 is stronger than the adhesiveness of the foam to the lower edge 821 of the circular portion 822.

More specifically, the concave portion and the convex portion in the concavo-convex shape are alternately formed in the circumferential direction in the distal end edge of the first wall portion. That is, in the lower edge 821 of the circular portion 823, concave and convex portions 85a and convex portions 85b are formed alternately in the circumferential direction.
More specifically, the concavo-convex shape of the lower edge 821 of the discharge port forming wall portion 82h is formed in a sawtooth shape having alternately a mountain-shaped convex portion 85b and a valley-shaped concave portion 85a. From the viewpoint of controlling adhesion, the difference in height between the convex portion 85b and the concave portion 85a is preferably 0.5 mm or more, more preferably 1 mm or more, more preferably 5 mm or less, and further preferably 3 mm or less. Moreover, 0.5 mm or more and 5 mm or less are preferable, and 1 mm or more and 3 mm or less are still more preferable.
The uneven shape may be other shapes such as a texture.

In the present embodiment, one discharge port forming wall portion 82 includes a circular portion 823 (first wall portion) and a circular portion 822 (second wall portion). In the case of the present embodiment, the lower edge 821 of the connecting portion 86 has the same shape as the lower edge 821 of the circular portion 822 so that the adhesion is the same, and the connecting portion 86 corresponds to the second wall portion.
Thus, in the case of this embodiment, the discharge port formation wall part 82 has mutually different foam adhesiveness, and has a wall part of a mutually different shape in planar view. That is, the discharge port forming wall portion 82 has a small circular portion 822 (and the connecting portion 86) and a large circular portion 823.

Thus, the discharge port forming wall portion 82 includes the first wall portion and the second wall portion, and the adhesiveness of the foam body to the leading edge of the first wall portion is such that the foam body adheres to the leading edge of the second wall portion. Stronger than adhesion.
In the present embodiment, the adhesiveness of the foam differs between the first wall portion and the second wall portion according to the presence or absence of unevenness at the tip edge and the width dimension of the tip edge, but the present invention is an example of this. However, the adhesiveness of the foam may be different between the first wall portion and the second wall portion depending on the material of the leading edge.

  As shown in FIG. 3B, the height position of the lower edge 821 of the circular portion 823 is higher than the height position of the lower edge 821 of the circular portion 822. The height position of the lower edge 821 of the circular portion 823 can be an average of the height position of the lower edge 821 of each part of the circular portion 823. Similarly, the height position of the lower edge 821 of the circular portion 822 is The average of the height positions of the lower edge 821 of each part of the circular portion 822 can be used. Note that the lower edge 821 of the circular portion 823 has a serrated uneven shape having alternately a mountain-shaped convex portion 85b and a valley-shaped concave portion 85a. The height position of the edge 821 is the height position of the convex portion 85b which is the lowest end.

Note that the lower edge 821 of the circular portion 822 is disposed horizontally.
Similarly, the lower edge 821 of the circular portion 823 is disposed horizontally. That is, the height positions of the concave portions 85a of the lower edge 821 of the circular portion 823 are set to be the same, and the height positions of the convex portions 85b of the lower edge 821 of the circular portion 823 are set to be the same.

  Further, the connecting portion 86 includes a changing portion 87 in which the height position of the lower edge 821 changes. In the case of this embodiment, the change part 87 is an inclined part in which the height position of the lower edge 821 gradually changes.

It is also preferable to control the adhesiveness of the foam to the lower edge 821 by changing the curvature (R) in the thickness direction of the lower edge 821 of the discharge port forming wall portion 82.
Specifically, the adhesiveness is stronger when the curvature of the lower edge 821 in the thickness direction is smaller (the curvature radius is larger) than when the curvature is larger (the curvature radius is smaller). For this reason, with respect to one discharge port forming wall portion 82 and the other discharge port forming wall portion 82, the width dimension in the thickness direction of the lower edge 821 is made the same, and the curvature in the thickness direction is made different from each other. Adhesiveness to the lower edge 821 of the discharge port forming wall portion 82 can be made different from each other, and by making both the width dimension in the thickness direction of the lower edge 821 and the curvature in the thickness direction different from each other, the adhesiveness May be different.

  As described above, the foam ejection component 80 is attached to a foam ejection device that includes the storage unit 10 that stores the liquid agent 70 and the former mechanism 21 that foams the liquid agent 70 to generate the foam, and ejects the foam. This is the foam discharge component 80 (here, the foam discharge device 100 excluding the foam discharge component 80 is referred to as a foam discharge device). The foam discharge component 80 protrudes from the plate-like portion 81 and one surface (the lower surface 81a) of the plate-like portion 81, is formed in a closed loop shape when viewed from the protruding direction, and the internal space is the other surface of the plate-like portion 81 ( And one or a plurality of discharge port forming wall portions 82 communicating with the space on the upper surface 81b) side and having a discharge port 83 formed at the tip. The discharge port forming wall portion 82 includes a first wall portion (for example, a circular portion 823) and a second wall portion (for example, a circular portion 822), and a foam body with respect to the leading edge (for example, the lower edge 821) of the first wall portion. Is stronger than the adhesiveness of the foam to the leading edge (for example, the lower edge 821) of the second wall portion.

By horizontally inserting a hand (palm) below the discharge unit 20, the hand is detected by the detection unit 51, a discharge trigger is generated, and the liquid pump 30 and the gas pump 40 are operated, whereby the former mechanism 21. The foam 70 is generated by the liquid 70 and the air supplied to the air, and the foam is discharged from each discharge port forming wall portion 82 via the bubble passage chamber 209 and the mesh 270. Thereafter, when the discharge of the predetermined amount of foam is completed, the operations of the liquid pump 30 and the gas pump 40 are stopped.
As a result, a foam model 94 shown in FIG. 9 is formed on the hand.

As shown in FIG. 9, in the case of this embodiment, the foam model 94 includes a snowman head 94 a and a body portion 94 b to which the head 94 a is connected. The head portion 94 a is mainly composed of a foam body discharged from the circular portion 822, and the body portion 94 b is mainly composed of a foam body discharged from the circular portion 823.
Here, as shown in FIG. 9B, the body portion 94b is formed thicker than the head portion 94a.
This is due to the following complex reasons.
One is due to the difference in the amount of foam discharged, and the amount of foam here is the amount per unit plane area.
First, because the diameter of the circular portion 823 is larger than that of the circular portion 822, the amount of foam discharged from the circular portion 823 is larger.
Next, the amount of the foam discharged from the circular portion 823 having the higher height position is larger than the amount of the foam discharged from the circular portion 822 having the lower height position, and the foam has the lower edge 821. This is because the height position separated from the circular portion 822 and the circular portion 823 are different. The amount of foam here is the amount per unit plane area, and the reason why the amount of foam discharged is different is because the circular portion 823 is arranged higher than the circular portion 822. is there.
The other is due to the difference in the adhesiveness of the foam at the lower edge 821.
Specifically, the width dimension in the thickness direction of the lower edge 821 of the circular portion 823 is larger than the width dimension in the thickness direction of the lower edge 821 of the circular portion 822, so that the circular portion 823 is larger than the circular portion 822. This is because the foam adherence per unit length in the circumferential direction of the discharge port forming wall portion 82 is stronger.
Further, the lower edge 821 of the circular portion 822 is formed flat, whereas the lower edge 821 of the circular portion 823 is formed with an uneven shape, so that the circular portion 823 is more than the circular portion 822. This is because the adhesiveness of the foam per unit length in the circumferential direction of the discharge port forming wall portion 82 is strong.

The lower end portion of the discharge port forming wall portion 82 may be formed in a chamfered shape as necessary. In the discharge port forming wall portion 82, the portion where the lower end portion is chamfered has a shape that becomes thinner downward (a shape in which the dimension in the thickness direction becomes narrower downward). .
In the discharge port forming wall portion 82, bubbles are less likely to adhere to the portion where the lower end portion is thinned downward. Therefore, the lower end part of the said part can be favorably separated from the foam molded article 94. Thereby, the discharge port formation wall part 82 can be isolate | separated from the foam molded article 94, without destroying the shape of the foam molded article 94 once formed as much as possible.
In the case of this embodiment, for example, the circular portion 822 and the lower end portion of the connecting portion 86 are chamfered, and these portions can be satisfactorily separated from the foam model 94.
Note that the chamfered shape of the lower end portion of the discharge port forming wall portion 82 may be either an R chamfered shape or a C chamfered shape, but FIG. 3 shows an example of the C chamfered shape.
In the case of this embodiment, as shown in FIG. 3, the lower end part of the circumferential direction (for example, the circular part 822 and the connection part 86) of the discharge port formation wall part 82 becomes a shape which becomes thin toward the downward direction. Thereby, the adhesive force of the bubble with respect to a lower end part is reduced in the said part. However, the present invention is not limited to this example, and the lower end portion of the discharge port forming wall portion 82 is formed in a shape that becomes thinner downward along the entire circumference of the discharge port 83 of the discharge port forming wall portion 82. May be.
That is, it is possible to adopt a configuration in which the lower end portion of at least a part of the discharge port forming wall portion 82 is formed in a shape that becomes thinner downward.

  Here, when the lower end portion of the discharge port forming wall portion 82 is formed in a chamfered shape, the width dimension of the lower edge 821 is not the width dimension of the lower surface excluding the chamfered section (not the width dimension including the chamfered section). Become.

  The material of the foam discharge component 80 is not particularly limited, but as the material of the foam discharge component 80, a light and inexpensive resin material (polypropylene or the like) is preferably used.

  According to the first embodiment as described above, the foam adherence to the lower edge 821 of the circular portion 823 is stronger than the foam adherence to the lower edge 821 of the circular portion 822. Thereby, a desired height difference can be formed in each part of the foam molding 94 constituted by the foam to be discharged. As a result, it is possible to form a desired three-dimensional foam model having a higher design.

  Moreover, since the discharge part 20 is provided with the foam discharge part 80 and the holding | maintenance part 234 which hold | maintains the foam discharge part 80 so that attachment or detachment is possible, the foam discharge part 80 is provided with the discharge port formation wall part 82 of another shape. By exchanging for what it has, the shape of the foam molded article 91 that can be formed can be changed to that of another shape.

<Variation 1 of the first embodiment>
Next, Modification 1 of the first embodiment will be described with reference to FIG.
The foam discharge component 80 according to the present modification is the foam according to the first embodiment described above in that the width dimension of the lower edge 821 of the circular part 823 is the same as the width dimension of the lower edge 821 of the circular part 822. It is different from the discharge component 80 and is otherwise configured in the same manner as the foam discharge component 80 according to the first embodiment.
In the case of this modification, the difference between the adhesiveness of the foam to the lower edge 821 of the circular portion 822 and the adhesiveness of the foam to the lower edge 821 of the circular portion 823 is caused by the presence or absence of unevenness, but the lower edge 821 Therefore, the difference between the thickness of the head portion 94a and the thickness of the body portion 94b is the first described with reference to FIG. 3, FIG. 9 (a), and FIG. 9 (b). Compared to the case of the embodiment, it becomes smaller.

<Modification 2 of the first embodiment>
Next, Modification 2 of the first embodiment will be described with reference to FIG.
The foam discharge component 80 according to this modification is different from the foam discharge component 80 according to the first embodiment described above in that the lower edge 821 of the circular portion 823 is formed flat. Then, it is comprised similarly to the foam discharge component 80 which concerns on 1st Embodiment.
In the case of this modification, the difference between the adhesiveness of the foam to the lower edge 821 of the circular portion 822 and the adhesiveness of the foam to the lower edge 821 of the circular portion 823 is caused by the difference in the width dimension of the lower edge 821. However, the difference between the thickness of the head portion 94a and the thickness of the body portion 94b is the first described with reference to FIG. 3, FIG. 9 (a), and FIG. 9 (b). Compared to the case of the embodiment, it becomes smaller.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIGS.
FIG. 10A is a planar image obtained by imaging the foamed article 93 actually formed using the foam discharge component 80 shown in FIG. 6, and FIG. 10B is the direction of the arrow B in FIG. It is the side image which imaged the foam modeling thing 93 from the side surface direction.
The foam ejection device 100 and the foam ejection component 80 according to the present embodiment are different from the foam ejection device 100 and the foam ejection component 80 according to the first embodiment described above, although the shape of the ejection port forming wall portion 82 is different. In other respects, the configuration is the same as the foam ejection device 100 and the foam ejection component 80 according to the first embodiment.
In the following description, the positional relationship and the shape of each discharge port forming wall portion 82 of the foam discharge component 80 may be described by the positional relationship shown in each drawing.

As shown in FIGS. 6A and 6C, in the case of the present embodiment, the foam discharge component 80 has one discharge port forming wall portion 82i disposed in the center and the discharge port forming wall portion 82i interposed therebetween. A pair of left and right discharge port forming wall portions 82f that are disposed symmetrically with respect to each other, and a discharge port formation wall portion 82g and a discharge port formation wall portion 82h that are disposed symmetrically with respect to the front and rear of the discharge port formation wall portion 82i. , A total of five discharge port forming wall portions 82 are provided.
The discharge port forming wall portion 82i is formed in a circular tube shape, and each of the discharge port forming wall portions 82f is formed in a slit shape that is long in one direction in a plan view and extends on the same straight line.
In addition, each of the discharge port forming wall portion 82g and the discharge port forming wall portion 82h is formed in a slit shape that is long in one direction in a plan view, extends on the same straight line, and has a discharge port forming wall. It extends in a direction orthogonal to the portion 82f.
Accordingly, the discharge port forming wall portion 82i, the discharge port forming wall portion 82f, the discharge port forming wall portion 82g, and the discharge port forming wall portion 82h form a cross shape in plan view.
The wall surfaces of the discharge port forming wall portion 82i, the discharge port forming wall portion 82f, the discharge port forming wall portion 82g, and the discharge port forming wall portion 82h are orthogonal to the plate-shaped portion 81.
Further, the height position of the lower edge 821 of the discharge port forming wall portion 82i, the height position of the lower edge 821 of the discharge port forming wall portion 82f, and the height position of the lower edge 821 of the discharge port forming wall portion 82g are uniform. It has become.

  The height positions of the lower edges 821 of the discharge port forming wall portion 82f, the discharge port forming wall portion 82g, and the discharge port forming wall portion 82h are set equal to each other, and the lower edge 821 of the discharge port forming wall portion 82i. The position is lower than the height position.

Here, as shown in FIG. 6A, the wall thickness of the discharge port forming wall portion 82g is thicker than the wall thickness of the discharge port forming wall portion 82f.
Thereby, the width dimension in the thickness direction of the lower edge 821 of the discharge port forming wall portion 82g is larger than that of the lower edge 821 of the discharge port forming wall portion 82f. The discharge port forming wall portion 82g having a large width dimension of the lower edge 821 is a first wall portion, and the discharge port forming wall portion 82f having a width size of the lower edge 821 smaller than that of the first wall portion is a second wall portion.
Therefore, the foam adherence (adhesion due to surface tension) to the lower edge 821 of the discharge port forming wall part 82g (first wall part) is related to the lower edge 821 of the discharge port forming wall part 82f (second wall part). It is stronger than the adhesion of foam.
That is, out of the discharge port forming wall portion 82g and the discharge port forming wall portion 82f, the discharge port forming wall portion 82g is the first wall portion, and the discharge port forming wall portion 82f is the second wall portion.
The width dimension of the lower edge 821 of the first wall part can be an average of the width dimension of each part in the first wall part (each part in the circumferential direction of the discharge port forming wall part 82g). Similarly, the width dimension of the lower edge 821 of the second wall part can be an average of the width dimension in each part (each part in the circumferential direction of the discharge port forming wall part 82f) in the second wall part.
In the present embodiment, each of the first wall portion and the second wall portion is the entire discharge port forming wall portion 82. That is, the discharge unit 20 includes a plurality of discharge port forming wall portions 82, and the plurality of discharge port forming wall portions 82 include first discharge port forming wall portions (for example, discharge port forming wall portions that constitute the first wall portion). 82g) and a second discharge port forming wall portion (for example, a discharge port forming wall portion 82f) constituting the second wall portion.

Furthermore, the wall thickness of the discharge port forming wall portion 82h is thicker than the wall thickness of the discharge port forming wall portion 82f.
Thereby, the width dimension in the thickness direction of the lower edge 821 of the discharge port forming wall portion 82h is larger than that of the lower edge 821 of the discharge port forming wall portion 82f.
Accordingly, the foam adherence to the lower edge 821 of the discharge port forming wall portion 82h is stronger than the foam adherence to the lower edge 821 of the discharge port forming wall portion 82f.
That is, of the discharge port forming wall portion 82h and the discharge port forming wall portion 82f, the discharge port forming wall portion 82h is the first wall portion, and the discharge port forming wall portion 82f is the second wall portion.

  The width dimension of the lower edge 821 of the discharge port forming wall portion 82g and the width dimension of the lower edge 821 of the discharge port forming wall portion 82h are equal to each other.

Further, as shown in FIGS. 6B and 6C, the lower edge 821 of the discharge port forming wall portion 82h is formed in an uneven shape, and the lower edge 821 of the discharge port forming wall portion 82g is formed flat. . By forming irregularities on the lower edge 821 of the discharge port forming wall part 82h, the surface area per unit flat area of the lower edge 821 is the surface area per unit flat area of the lower edge 821 of the discharge port forming wall part 82g. Is bigger than. As a result, the foam adherence to the lower edge 821 of the discharge port forming wall portion 82h (adhesion due to surface tension) is stronger than the foam adherence to the lower edge 821 of the discharge port forming wall portion 82g. .
More specifically, concave and convex portions 85a and 85b in the concavo-convex shape are alternately formed on the lower edge 821 of the discharge port forming wall portion 82h in the circumferential direction of the discharge port forming wall portion 82h.

In the case of this embodiment, by discharging a foam through the foam discharge component 80, as shown in FIG. 10A, it is possible to form a foam model 93 having a shape imitating a cross.
The foam molded article 93 was discharged mainly through the pair of first portions 93a mainly composed of the foam discharged through the pair of discharge port forming wall portions 82f and the discharge port forming wall portion 82g. The second portion 93b composed of foam, the third portion 93c composed mainly of foam discharged through the discharge port forming wall 82h, and the discharge mainly through the discharge port forming wall 82i And a fourth portion 93d made of the foamed material.
Here, the foam discharged from the discharge port 83 is crushed between the discharge target and the discharge port 83 and spreads over a wider range than the discharge port 83 in plan view (swells around the discharge port 83). The shape of the foam is affected by the adhesion of the foam to the lower edge 821.
More specifically, as shown in FIG. 10B, the thickness of the second portion 93b is increased by Δt1 compared to the thickness of the first portion 93a. This is because the discharge port forming wall portion 82g has a larger width dimension of the lower edge 821 than the discharge port forming wall portion 82f (that is, the bubble adhesion area per unit length in the circumferential direction of the discharge port forming wall portion 82). This is because the foam is pulled higher by the discharge port forming wall portion 82g.
Further, the thickness of the third portion 93c is increased by Δt2 as compared with the thickness of the second portion 93b. This is because the lower edge 821 of the discharge port forming wall portion 82g is flat, whereas the lower edge 821 of the discharge port forming wall portion 82h is formed with an uneven shape, whereby the discharge port forming wall portion 82h. This is because the lower edge 821 has a larger bubble adhesion area per unit plane area, and thus the foam is pulled higher by the discharge port forming wall portion 82h.
In addition, since the discharge port forming wall portion 82i is located in the middle of the discharge port forming wall portions 82f, 82g, and 82h, the presence of the foam discharged from the discharge port 83 of the discharge port forming wall portion 82i The balance of discharge from the entire discharge port 83 of the discharge port forming wall portion 82 is improved. That is, since it can suppress that the foam discharged from the discharge port 83 of each discharge port formation wall part 82f, 82g, 82h flows toward those intermediate positions, each discharge port formation wall part 82f, 82g , 82h can prevent the foam discharged from the shape of the foam from becoming distorted. As a result, it becomes easy to recognize the difference in the height of the foam discharged from the discharge port forming wall portions 82f, 82g, and 82h (the difference in the height of the foam is as described above. , 82g, 82h is set due to the difference in adhesion to the lower edge 821).

<Modification of the shape of the lower end of the discharge port forming wall>
Next, a modified example of the shape of the lower end portion of the discharge port forming wall portion 82 will be described with reference to FIGS. Each figure of FIG. 7 shows the cross section which cut | disconnected the lower part of the discharge port formation wall part 82 along the thickness direction. The right side region of the discharge port forming wall portion 82 shown in each drawing of FIG. 7 is an internal space (a space inside the closed loop shape of the discharge port forming wall portion 82 in plan view) through which bubbles pass.
As shown in FIGS. 7A and 7B, the lower end portion of the discharge port forming wall portion 82 is formed in a tapered shape that becomes thinner downward, and may have a sharp tip. The lower end portion of the discharge port forming wall portion 82 may have a single taper shape (a shape in which one surface of the discharge port forming wall portion 82 has a taper in the thickness direction) as shown in FIG. 7B may be a double taper shape (a shape in which both surfaces of the discharge port forming wall portion 82 have a taper in the thickness direction).
Moreover, as shown in FIG.7 (c), at the lower end part of the discharge port formation wall part 82, one half part of the discharge port formation wall part 82 in the thickness direction protruded below rather than the other half part. It may be formed in a step shape.
The shape of the lower end portion of the discharge port forming wall portion 82 is as shown in FIGS. 7A and 7B, thereby suppressing foam adhesion due to surface tension (adhesion to the lower end portion of the discharge port forming wall portion 82). Therefore, the lower end part of the discharge port formation wall part 82 can be favorably separated from the foamed article.

[Third Embodiment]
Next, a third embodiment will be described with reference to FIG.
In the first embodiment, the example in which the foam ejection device 100 is an automatic dispenser has been described. In the present embodiment, an example in which the foam ejection device 100 is a manual type foam ejection container will be described. That is, in the case of the present embodiment, the foam discharge device 100 includes the former mechanism 21 and includes a foam pump mechanism 110 that generates a foam body by a pressing operation.

  Although the shape of the storage part 10 is not specifically limited, for example, as shown in FIG. 8, the storage part 10 is connected to the bottomed cylindrical body part 11 and the upper part of the body part 11 and is directed upward. It has a shape having a shoulder 12 with a reduced cross-sectional area of the cavity and a cylindrical mouth-neck 13 connected to the upper side of the shoulder 12. An opening is formed at the upper end of the mouth-and-neck portion 13.

  The foam pump mechanism 110 is, for example, held by the mounting unit 111 mounted on the storage unit 10, the upright tube 112 standing upward from the mounting unit 111, and the upright tube 112 movable up and down with respect to the mounting unit 111. The head portion 120 is provided, a holding member (holding portion) 290 that can be attached to and detached from the head portion 120, and a foam discharge component 80 that is held by the holding member 290.

  The head unit 120 includes a pressing unit 121 that receives a pressing operation, and a nozzle unit 122 that protrudes from the pressing unit 121 (for example, protrudes substantially horizontally). The foam pump mechanism 110 has a built-in spring (not shown) that biases the head portion 120 upward, and the head portion 120 is pushed down relative to the mounting portion 111 against the biasing of the spring. Thus, the liquid agent 70 in the reservoir 10 is sucked up through a suction pipe (not shown) and discharged from the tip of the nozzle part 122. In the process, since the liquid agent 70 is foamed by the former mechanism 21 built in the foam pump mechanism 110, the foam body is discharged from the nozzle part 122. In addition, since the structure of the foam pump mechanism 110 is widely known, detailed description of the structure is omitted here.

A bubble passage chamber 209 is formed inside the holding member 290. As in the first embodiment, the bubble passage chamber 209 has a bottom portion formed of a plate-like portion 81, and a discharge port forming wall portion 82 is formed at the bottom portion.
The holding member 290 has a locking hook 283 that is locked to the nozzle portion 122. When the locking hook 283 is locked to the nozzle part 122, the holding member 290 is maintained in the state held by the nozzle part 122, and the foam channel (not shown) in the nozzle part 122 is held. The bubble passage chamber 209 inside the member 290 is maintained in a communicating state.
It should be noted that, in a state where the locking hook 283 is locked to the nozzle portion 122, it is preferable that the tip portion of the nozzle portion 122 is inserted into the holding member 290.
The holding member 290 is formed in a shape in which the lower surface side of the bubble passage chamber 209 is opened. However, the foam discharge component 80 is provided on the lower surface side of the foam passage chamber 209. A locking portion 236 similar to that of the first embodiment is formed in the lower portion of the holding member 290, and the foam discharge component 80 is held by the locking portion 236. Accordingly, the opening on the lower surface side of the holding member 290 is closed except for the discharge port 83 of the discharge port forming wall portion 82 of the foam discharge component 80.
In the case of the present embodiment, the foam discharged from the nozzle part 122 when the head part 120 is pressed flows into the foam passage chamber 209, and further, via the discharge port forming wall part 82 of the foam discharge part 80. It is discharged outside.

  For example, the foam discharge component 80 may have the structure described in any of the above-described embodiments or modifications thereof. Therefore, when the foam is discharged through the foam discharge component 80 in accordance with the pressing operation on the pressing unit 121, the foam becomes a foam-shaped article having a predetermined shape.

  In the third embodiment, the foam discharge device 100 of a type in which a foam is generated by a manual push operation has been described. However, unlike the third embodiment, the high-pressure gas stored in a cylinder or the like. The foam discharge device 100 may be configured so as to discharge the liquid agent 70 as a foam using, for example.

The above embodiment includes the following technical idea.
<1> A storage unit that stores a liquid agent, a former mechanism that foams the liquid agent to generate a foam, and a discharge unit that discharges the foam. The discharge unit passes through the foam. One or a plurality of bubble passage chambers, which protrude from the bubble passage chamber, are formed in a closed loop shape when viewed from the protruding direction, have an internal space communicating with the bubble passage chamber and a discharge port at the tip. A discharge port forming wall portion, the discharge port forming wall portion including a first wall portion and a second wall portion, wherein the foam adheres to a tip edge of the first wall portion. The foam discharge apparatus stronger than the adhesiveness of the said foam with respect to the front-end edge of two wall parts.
<2> The bubble passage chamber has a bottom portion formed of a plate-like portion, and the discharge port forming wall portion is formed on the bottom portion.
<3> The foam discharge device according to <1> or <2>, wherein the one discharge port forming wall portion includes the first wall portion and the second wall portion.
<4> The discharge portion includes a plurality of the discharge port forming wall portions, and the plurality of discharge port forming wall portions include a first discharge port forming wall portion constituting the first wall portion, and the second. The foam discharge device according to any one of <1> to <3>, including a second discharge port forming wall portion constituting the wall portion.
<5> The foam according to any one of <1> to <4>, wherein the leading edge of the first wall portion has a larger width dimension in the thickness direction than the leading edge of the second wall portion. Discharge device.
<6> The foam discharge according to any one of <1> to <5>, wherein a leading edge of the first wall is formed in an uneven shape, and a leading edge of the second wall is formed flat. apparatus.
<7> The foam discharge device according to <6>, wherein a concave portion and a convex portion in the concavo-convex shape are alternately formed in a circumferential direction at a distal end edge of the first wall portion.
<8> The discharge unit includes a plate-like part that defines a lower end of the bubble passage chamber, and one or a plurality of the discharge port forming wall parts protruding from the lower surface of the plate-like part; A foam discharge device according to any one of <1> to <7>, further comprising a holding unit that detachably holds the foam discharge component.
<9> A liquid agent supplying actuator for supplying the liquid agent from the reservoir to the former mechanism, a gas supplying actuator for supplying gas to the former mechanism, and an operation control of the gas supplying actuator and the liquid agent supplying actuator. A control unit that performs the above, and the foam is generated by supplying the liquid agent and the gas to the former mechanism under the control of the control unit. <1> to <8> The foam discharge apparatus as described in any one of Claims.
<10> The foam discharge device according to any one of <1> to <9>, further including a foam pump mechanism configured to include the former mechanism and generate the foam by a pressing operation.
<11> The foam discharge device according to any one of <1> to <10>, further including the liquid agent filled in the storage unit.
<12> The foam discharge device according to any one of <1> to <11>, wherein the discharge port forming wall portion has a noncircular shape in a plan view.
<13> The foam discharge device according to any one of <1> to <12>, wherein the discharge port forming wall portion is configured by a combination of shapes different from each other in plan view.
<14> The foam discharge device according to <13>, wherein the discharge port forming wall portion has wall portions having different shapes from each other in plan view and having different shapes in plan view.
<15> A foam discharge component that is attached to a foam discharge device that includes a reservoir for storing a liquid agent and a foamer mechanism that foams the liquid agent to generate a foam, and discharges the foam. Projecting from one surface of the plate-shaped portion and the plate-shaped portion, formed in a closed loop shape when viewed from the projecting direction, the internal space communicating with the space on the other surface side of the plate-shaped portion, and a discharge port at the tip One or a plurality of discharge port forming wall portions formed, wherein the discharge port forming wall portion includes a first wall portion and a second wall portion, with respect to a leading edge of the first wall portion. The foam discharge component in which the adhesiveness of the foam is stronger than the adhesiveness of the foam to the leading edge of the second wall portion.
<16> The former mechanism includes a mixing chamber in which the liquid agent and air are mixed, and a maximum value of a cross-sectional area perpendicular to the discharge direction of the foam in the foam passage chamber is the mixing chamber. Any one of the above which is larger than the maximum value of the cross-sectional area orthogonal to the discharge direction and larger than the total value of the maximum cross-sectional areas of the internal space of each discharge port forming wall portion orthogonal to the discharge direction. The foam discharge device according to one item.
<17> A cross-sectional area orthogonal to the discharge direction of a portion adjacent to the discharge port forming wall portion in the bubble passage chamber is a section orthogonal to the discharge direction of the internal space of each discharge port forming wall portion. The foam discharge device according to <16>, which is larger than a total value of the maximum area values.

DESCRIPTION OF SYMBOLS 10 Storage part 20 Discharge part 21 Former mechanism 30 Liquid pump (Liquid agent supply actuator)
31 Suction pipe 32 Liquid supply pipe 40 Gas pump (gas supply actuator)
41 Air supply pipe 50 Control unit 51 Detection unit 60 Housing 61 Main body unit 62 Head unit 70 Liquid agent 80 Foam discharge component 81 Plate-shaped unit 81a Lower surface (one surface)
81b Upper surface (the other surface)
82, 82f, 82g, 82h, 82i Discharge port forming wall portion 821 Lower edge (tip edge)
822 Circular part (second wall)
823 circular part (first wall)
83 Discharge port 84a Low position end part 84b High position end part 85a Concave part 85b Convex part 86 Connection part 87 Change part 88 Ring protrusion 89 Locked protrusion 93 Foam molded article 93a 1st part 93b 2nd part 93c 3rd part 94 Foam Model 94a Head 94b Body unit 100 Foam discharge device 110 Foam pump mechanism 111 Mounting unit 112 Standing cylinder 120 Head unit 121 Depressing unit 122 Nozzle unit 200 Discharge unit 201 Gas introduction port 202 Gas front chamber 203 Gas passage 205 Liquid agent introduction port 206 Liquid passage 207 Mixing portion 208 Mixing chamber 209 Foam passage chamber 210 Mesh 220 Cap member 221 Tubular portion 222 Blocking portion 230 Tubular member 231 Outer tube portion 232 Inner tube portion 233 Blocking portion 234 Holding portion 235 Top surface portion 236 Locking portion 237 Difference Slot 240 Outer sleeve 250 Flow path inner sleeve 260 Road construction core 270 mesh 283 locking hook 290 holding member (holding portion)

Claims (11)

A reservoir for storing the liquid agent;
A former mechanism for generating a foam by foaming the liquid agent;
A discharge part for discharging the foam;
With
The discharge part is
A foam passage chamber through which the foam passes,
One or a plurality of discharge port forming walls that protrude from the bubble passage chamber, are formed in a closed loop shape when viewed from the protrusion direction, have an internal space communicating with the bubble passage chamber, and have a discharge port formed at the tip. When,
Have
The discharge port forming wall portion includes a first wall portion and a second wall portion, and the adhesiveness of the foam body to the leading edge of the first wall portion is such that the foam body adheres to the leading edge of the second wall portion. Foam discharge device stronger than adhesion.   The foam discharge device according to claim 1, wherein one discharge port forming wall portion includes the first wall portion and the second wall portion. The discharge part has a plurality of the discharge port forming wall parts,
The plurality of discharge port forming wall portions include a first discharge port forming wall portion constituting the first wall portion and a second discharge port forming wall portion constituting the second wall portion. The foam discharge apparatus according to 1 or 2.   The foam discharge device according to any one of claims 1 to 3, wherein a width of the front edge of the first wall portion in the thickness direction is larger than that of the front edge of the second wall portion.   The foam discharge device according to any one of claims 1 to 4, wherein a leading edge of the first wall portion is formed in an uneven shape, and a leading edge of the second wall portion is formed flat.   The foam discharge device according to claim 5, wherein a concave portion and a convex portion in the concavo-convex shape are alternately formed in a circumferential direction at a distal end edge of the first wall portion. The discharge part is
A foam discharge part having a plate-like portion defining a lower end of the bubble passage chamber, and one or a plurality of the discharge port forming wall portions protruding from the lower surface of the plate-like portion;
A holding unit for detachably holding the foam discharge component;
The foam discharge device according to any one of claims 1 to 6. A liquid agent supply actuator for supplying the liquid agent from the reservoir to the former mechanism;
A gas supply actuator for supplying gas to the former mechanism;
A control unit for controlling operations of the gas supply actuator and the liquid supply actuator;
Further comprising
The foam discharge device according to any one of claims 1 to 7, wherein the foam is generated by supplying the liquid agent and the gas to the former mechanism under the control of the control unit.   The foam discharge device according to any one of claims 1 to 8, further comprising a foam pump mechanism configured to include the former mechanism and generate the foam by a pressing operation.   The foam discharge device according to any one of claims 1 to 9, further comprising the liquid agent filled in the storage unit. A foam discharge part that is attached to a foam discharge device including a storage unit that stores a liquid agent and a foamer mechanism that foams the liquid agent to generate a foam, and discharges the foam,
A plate-shaped part;
Projecting from one surface of the plate-shaped part, formed in a closed loop shape when viewed from the projecting direction, the internal space communicating with the space on the other surface side of the plate-shaped part, and a discharge port formed at the tip One or a plurality of discharge port forming walls,
Have
The discharge port forming wall portion includes a first wall portion and a second wall portion, and the adhesiveness of the foam body to the leading edge of the first wall portion is such that the foam body adheres to the leading edge of the second wall portion. Foam discharge component stronger than adhesion.