JP7336901B2 - foam dispenser - Google Patents

Description

The present invention relates to foam dispensers.

Conventionally, there has been proposed a technique related to a dispenser that foams and ejects a liquid agent. For example, Patent Literature 1 describes a foam dispenser capable of mixing a content liquid with air and foaming it and discharging it not only in the outward path in which the pump head is pushed in, but also in the return path in which the pump head is pushed back upward. It is

JP 2015-98328 A

However, in the foam dispenser described in Patent Literature 1, by pushing down the head portion, the cylinder is compressed, the air is exhausted or the liquid is drained, and the air and liquid agent are mixed. Therefore, the flow velocity of air or liquid agent depends on the pressing speed of the head section. Since the foam quality of the ejected liquid agent depends on the flow velocity of the air and the liquid agent during mixing, the foam quality after mixing varies due to the difference in pressing speed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a foam dispenser capable of ejecting a liquid agent having a constant foam quality regardless of the pressing speed of the head portion.

In order to solve the above problems, according to an aspect of the present invention, a liquid agent chamber for storing a liquid agent, a gas chamber for storing a gas, and the liquid agent and the gas are mixed to make the liquid agent foamy. and an accumulator for accumulating energy generated based on a user's operation, wherein the accumulator releases the accumulated energy to cause the liquid chamber to and a foam dispenser for supplying the liquid agent stored in the gas chamber and the gas stored in the gas chamber to the mixing section.

ADVANTAGE OF THE INVENTION According to this invention, the bubble dispenser which can discharge the liquid agent which has a fixed foam quality regardless of the pressing speed of a head part is provided.

It is an explanatory view showing a side section of a foam dispenser concerning a 1st embodiment. FIG. 2 is an enlarged view of a region A1 indicated by a two-dot chain line in FIG. 1; It is an explanatory view showing a perspective section of a former mechanism concerning a 1st embodiment. FIG. 10 is an explanatory diagram showing a side cross-sectional view of the foam dispenser in a state where the head portion is being pushed down; 5 is an enlarged view of a region A2 indicated by a two-dot chain line in FIG. 4; FIG. FIG. 5 is an enlarged view of a region A3 indicated by a two-dot chain line in FIG. 4; FIG. 10 is a diagram showing a state in which the pressing operation of the head section is completed and the position of the head section has reached the lowest point; FIG. 10 is an explanatory view showing a side cross-sectional view of the foam dispenser in a state in which the cylinder portion is raised according to the elastic energy of the coil spring; FIG. 9 is an enlarged view of a region A4 indicated by a two-dot chain line in FIG. 8; FIG. 10 is a photographed image of a foamy liquid agent ejected into a sample container from a foam ejector of an example and a comparative example; FIG. FIG. 3 is an explanatory diagram showing a side cross-section of a foam dispenser according to a comparative example; FIG. 4 is a schematic diagram showing the relationship between the speed at which a user presses a pressing operation portion and the pressure of a liquid and a gas. Fig. 10 is a perspective view showing a foam dispenser according to a second embodiment; It is an explanatory view showing a side section of a foam dispenser concerning a 2nd embodiment.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, thereby omitting redundant description. In addition, in this specification and drawings, similar components of different embodiments may be distinguished by attaching different alphabets after the same reference numerals. However, when there is no particular need to distinguish between similar components, only the same reference numerals are used.

The drawings referred to in the following description are drawings for describing the embodiments of the present invention and for promoting understanding thereof. There is In addition, the description of a specific shape in the following description does not mean only the case of the shape being geometrically concerned, but the It means that shapes similar to shapes are also included. For example, in the following description, the expression "disc-like" is not limited to a plate having a perfectly circular surface, but also means a plate having a surface with a shape similar to a perfect circle such as an ellipse. It will happen. Furthermore, "substantially the same" used for specific diameter sizes and lengths in the following description does not mean only when they are completely matched mathematically or geometrically, It is also meant to include sizes and lengths with a degree of variation that is acceptable in the manufacture and use of the dispenser (eg, slack for ease of manufacture).

Moreover, in the following description, the vertical direction is defined based on the foam dispenser according to the embodiment of the present invention. Specifically, the vertical direction in the following description refers to the vertical direction in the case of a foam dispenser, which will be described later, in which the container main body containing the liquid agent is arranged on the lower side and the head portion is arranged on the upper side. However, the vertical direction may be different from the vertical direction of the foam dispenser and elements (parts) constituting the foam dispenser at the time of manufacture and use of the foam dispenser. Further, in the following description, "upstream" and "downstream" refer to the relative position of gas, liquid, or foamy liquid flow. In more detail, a position close to the starting point of these flows will be called upstream, and a position farther from the starting point than "upstream" will be called "downstream".

Furthermore, in the following description, a foamy liquid agent means a liquid agent in a state in which a plurality of spherical or spherical-like bubbles are enclosed by enclosing air bubbles in the liquid agent. and Therefore, in the following description, the size of the bubbles contained in the foamy liquid agent (specifically, the diameter of the sphere, etc.) and the distribution density of the bubbles are not particularly limited. The size and distribution density of the bubbles change depending on the application.

<1. First Embodiment>
A foam dispenser 10 according to a first embodiment will be described. The foam dispenser 10 according to the first embodiment mixes a liquid agent filled in a container main body 100 described later with a gas taken in from the outside of the container main body 100 to foam the liquid agent. It is a container that can be discharged to the outside of the discharger 10 . Below, with reference to Drawing 1 and Drawing 2, a schematic structure of foam dispenser 10 concerning a 1st embodiment of the present invention is explained. FIG. 1 is an explanatory diagram showing a side cross section of a foam dispenser 10 according to the first embodiment. Moreover, FIG. 2 is an enlarged view of the area A1 indicated by the two-dot chain line in FIG.

The foam dispenser 10 according to the first embodiment, as shown in FIG. It mainly has a member 200 . This coil spring 128 functions as an accumulator in the present invention. The mounting member 200 includes a cap member 210 that discharges a foamy liquid agent to the outside of the foam dispenser 10, a cylinder portion 220 that constitutes a liquid agent supply portion and a gas supply portion, which will be described later, and a head portion that receives pressure from the user. 230. Specifically, the foam dispenser 10 can change the liquid agent into foam and eject it by pressing the pressing operation portion 232 of the head portion 230 downward with a user's finger or the like. The foam dispenser 10 according to this embodiment is a container called a so-called pump foamer having a manual pump. That is, in the following description, the foam dispenser 10 will be described as a pump foamer type container. An outline of each part of the foam dispenser 10 will be described below. However, the foam dispenser 10 according to embodiments of the present invention is not limited to being a pump foamer type container.

The container body 100 has a space that can be filled with a liquid agent. For example, as shown in FIG. 1, the container body 100 includes a cylindrical (circular tubular) body 102, a cylindrical mouth-and-neck section 104 connected to the upper side of the body 102, and the body and a bottom 106 closing off the lower end of 102 . Specifically, the body portion 102 has a space for storing the liquid medicine by closing the lower end thereof with the bottom portion 106 . Furthermore, an opening is formed in the mouth/neck portion 104, and a part of the head portion 230, which will be described later, can be inserted into the opening. In addition, in the present embodiment, the shape of the container body 100 is not limited to the shape shown in FIG. 1, and may be other shapes.

The liquid agents filled in the container body 100 include, for example, face wash, hand soap, body soap, cleansing agents, various detergents for tableware and bathrooms, hair styling agents, shaving creams, foundations, serums for skin, and the like. Various liquid agents such as cosmetics, hair dyes, disinfectants, etc., which are used in foam form, and are not particularly limited. Furthermore, the viscosity of the liquid agent is not particularly limited.

Further, the liquid agent filled in the container body 100 can contain particles and powder (powder). The particles or powder may be particles of solid fats or oil droplets (emulsions) in addition to solids such as scrub agents. Furthermore, as the particles or powder, one selected from solid polymer particles, wax, ultraviolet scattering agents, solid oil particles, abrasives, particles such as silica or organic additives, powders, and various additives. The above particles, powders or additives may be included.

The mounting member 200 includes a cap member 210 , a cylinder portion 220 and a head portion 230 .

The cap member 210 has a cylindrical mounting portion 212 , and the entire mounting member 200 can be mounted on the container body 100 by screwing the mounting portion 212 onto the mouth/neck portion 104 . In other words, by attaching the cap member 210 to the mouth/neck portion 104 , the opening of the mouth/neck portion 104 is closed by the head portion 230 . The mounting portion 212 may have a double tube structure, and in such a case, the inner tube of the mounting portion 212 is screwed to the mouth/neck portion 104 . Further, the cap member 210 has an upright cylindrical portion 217 that rises upward from the upper portion of the mounting portion 212 . The upright tubular portion 217 has a cylindrical shape with a diameter smaller than that of the mounting portion 212 , and part of the head portion 230 is inserted into the upright tubular portion 217 . The upright cylindrical portion 217 may have the same diameter as the mounting portion 212 or may have a larger diameter than the mounting portion 212, but both the mounting portion 212 and the upright cylindrical portion 217 have a smaller diameter than the cylindrical portion 234 of the head portion 230, which will be described later. there is A portion of the head portion 230 inserted into the standing tubular portion 217 is, for example, a lower portion of an inner tubular portion 234 b that is spaced radially inward from an outer tubular portion 234 a forming a peripheral wall of the tubular portion 234 . The outer cylinder portion 234a and the inner cylinder portion 234b have a cutout portion for allowing the nozzle portion 214 to pass through in a part in the circumferential direction.

The cap member 210 has a nozzle portion 214 provided as an integral body with the cap member 210, as shown in FIG. A discharge port 216 is provided at the tip of the nozzle portion 214 . The internal space of the nozzle portion 214 communicates with the former mechanism 300 . The liquid agent foamed by the foamer mechanism 300 is discharged from the discharge port 216 to the outside of the foam discharger 10 .

The cylinder part 220 includes a foamer mechanism 300 (mixing part) that mixes a liquid agent and a gas to foam the liquid agent, and a liquid agent that supplies the liquid agent stored in the container main body 100 to the foamer mechanism 300. and a gas supply unit that takes in gas from the outside of the foam dispenser 10 and supplies the gas to the foamer mechanism 300 . Specifically, the liquid agent supply unit is, for example, a liquid agent cylinder that constitutes a liquid agent pump, pressurizes the liquid agent in a liquid agent pump chamber 280 (liquid agent chamber) described later, and supplies the liquid agent to the former mechanism 300 . The gas supply unit is, for example, a gas cylinder that constitutes a gas pump, pressurizes gas in a gas pump chamber 260 (gas chamber) described later, and supplies the gas to the former mechanism 300 . Details of the liquid agent supply section, the gas supply section, and the former mechanism 300 will be described later with reference to other drawings. Also, the upper end of the cylinder portion 220 is closed by a cylinder lid portion 226 .

In the following description, the gas mixed with the liquid agent in the foamer mechanism 300 means air (external air) containing nitrogen, oxygen, carbon dioxide, etc., taken into the foam dispenser 10 from the outside. are doing. However, in this embodiment, the gas is not limited to air. For example, the gas may be a gas composed of various gaseous components preliminarily filled in the container body 100 of the foam dispenser 10 or the like.

The head section 230 is configured to be movable up and down. Specifically, the head section 230 has a pressing operation section 232 that receives a pressing operation by a user's finger or the like. When the pressing operation portion 232 is pushed down and the head portion 230 is pushed down relative to the mounting portion 212 , the inside of the liquid pump chamber 280 expands to fill the liquid pump chamber 280 . Fluid is supplied. Furthermore, the inside of the gas pump chamber 260 expands and the gas is supplied to the gas pump chamber 260 . More specifically, the diameter-reduced portion 222b forming the bottom portion of the liquid agent pump chamber 280 integrally with the head portion 230 is pushed downward, thereby increasing the internal volume of the liquid agent pump chamber 280 and causing the liquid to flow through the liquid agent pump. As the gas flows into the chamber 280, the annular connecting portion 223 integral with the head portion 230 and forming the bottom portion of the gas pump chamber 260 is pushed downward, so that the internal volume of the gas pump chamber 260 increases. It flows into the gas pump chamber 260 .

Further, the head portion 230 has a cylindrical portion 234 hanging downward from the pressing operation portion 232 . Specifically, the cylindrical portion 234 is indirectly supported by the cylinder portion 220, the support base 120, and the like. The head portion 230 can be pushed down (lowered) within a predetermined range against the bias of the coil spring 128 . Specifically, when the pressing operation is released, the head portion 230 rises in the vertical direction relative to the cap member 210 according to the elastic energy of the coil spring 128, and reaches the upper stopping point. Moving. On the other hand, when the user presses down the head portion 230 (more specifically, the pressing operation portion 232) against the bias of the coil spring 128, the head portion 230 moves relative to the cap member 210. , elastic energy is accumulated in the coil spring 128 .
Specifically, as shown in FIG. 1, the tubular portion 234 has a double tubular structure and has an outer tubular portion 234a and an inner tubular portion 234b. When the head portion 230 moves up and down, the upright tubular portion 217 of the cap member 210 should ensure a narrow flow path between the outer tubular portion 234a and the inner tubular portion 234b to allow the intake of air. (See Fig. 5).

As described above, the foamer mechanism 300 is a mechanism for mixing the liquid agent and the gas to change the liquid agent into foam, and as shown in FIGS. It is housed in section 218 . As described above, the upper side of the former mechanism 300 communicates with the internal space of the nozzle portion 214 of the cap member 210, so that the liquid agent foamed by the former mechanism 300 is passed through the nozzle portion 214. It can be discharged to the outside of the foam dispenser 10 via the outlet 216 . On the other hand, the lower side of the former mechanism 300 faces a ball valve 180 that constitutes a check valve 180a that allows liquid to be supplied to the former mechanism 300. As shown in FIG. The check valve 180a is composed of the ball valve 180 and the valve seat portion 131 provided inside the piston guide 290, which will be described later. The former mechanism 300 is supplied with the liquid agent from the liquid agent supply unit located below the ball valve 180 as the ball valve 180 of the check valve 180a moves up and down. Also, the check valve 180a can stop the return of the liquid from the former mechanism 300 to the liquid agent supply section.

The structure of the former mechanism 300 will be described in more detail with reference to FIG. FIG. 3 is an explanatory diagram showing a perspective cross section of the former mechanism 300 according to the first embodiment. Specifically, FIG. 3 is a cross-sectional view of the former mechanism 300 cut along the vertical direction so as to pass through the central axis of the former mechanism 300, as viewed obliquely.

The former mechanism 300 according to this embodiment mainly has an outer member 310, an inner member 320, a first mesh portion 330a, and a second mesh portion 330b.

Specifically, in the former mechanism 300, the inner member 320 is inserted into the outer member 310 as shown in FIG. Further, the central axes of the outer member 310 and the inner member 320 are coaxial with each other. A first mesh portion 330 a is provided at the lower end of the inner member 320 , and a second mesh portion 330 b is provided at the upper end of the inner member 320 . In addition, a passage 315a is provided in the lower portion of the outer member 310, through which the liquid agent and the gas flow. Further, the inner member 320 is provided with a passage 315b through which liquid agent and gas pass.

The liquid medicine and gas supplied to the former mechanism 300 pass through the passages 315a and 315b from the bottom to the top. When the liquid agent and the gas pass through the first mesh portion 330a and the second mesh portion 330b, the liquid agent and the gas are mixed and the liquid agent becomes foamy. At this time, if the supply speed to the former mechanism 300 becomes high, the liquid agent and the gas pass through the first mesh portion 330a and the second mesh portion 330b before being sufficiently mixed. of liquid becomes uneven.

However, in the foam dispenser 10 according to the present embodiment, the elastic restoring force from the compressed state of the coil spring 128 (accumulation portion), which will be described later, i.e., the energy accumulated in the coil spring 128 (accumulation portion), allows the user to The liquid agent and the gas can be supplied to the former mechanism 300 at a supply speed that does not depend on the pressing speed of the pressing operation part 232 . Therefore, in the foam dispenser 10 according to the present embodiment, even when the liquid agent and the gas are mixed using the foamer mechanism 300 including the mesh portions 330a and 330b as described above, the pressing operation portion 232 is pressed. A liquid agent having a constant foam quality can be discharged regardless of the lowering speed.

The piston guide 290 is positioned below the former mechanism 300 described above, is a cylindrical member elongated in the vertical direction, and is fixed to the cap member 210 . A liquid piston 270 , which will be described later, is fixed to the cap member 210 via the piston guide 290 . A cylindrical valve seat portion 131 is formed inside the upper side of the piston guide 290 , and the ball valve 180 is arranged on the valve seat portion 131 . The ball valve 180 is vertically movably held between the lower end of the former mechanism 300 and the valve seat portion 131 . Further, a through-hole 131 a communicating with the lower portion of the valve seat portion 131 is provided in the center of the valve seat portion 131 . In other words, the ball valve 180 and the valve seat portion 131 constitute the check valve, and as the ball valve 180 moves up and down, the check valve allows the liquid agent to flow from below the valve seat portion 131 to the foamer mechanism 300 . supply to

A gas piston 250 , which will be described later, is loosely fitted on the piston guide 290 , and the gas piston 250 can move vertically relative to the piston guide 290 . A flange portion 233 is provided in the center portion of the piston guide 290 in the vertical direction, and an annular (doughnut-shaped) valve configuration groove 134 is provided on the upper surface of the flange portion 233 . Furthermore, a cylindrical portion 251 of the gas piston 250 described later is loosely fitted on the upper portion of the piston guide 290 . The valve configuration groove 134 and the lower end portion of the tubular portion 251 of the gas piston 250 constitute a gas discharge valve 134a. More specifically, the outer peripheral surface of the portion of the piston guide 290 to which the tubular portion 251 is fitted is provided with a plurality of flow passage forming grooves extending along the vertical direction. The gap provided between these channel-constituting grooves and the inner peripheral surface of the cylindrical portion 251 of the gas piston 250 is filled with gas that flows out from a gas pump chamber 260 (gas chamber), which will be described later, through the gas discharge valve 134a. constitutes a gas flow path 290a through which flows upward (see FIG. 9).

Further, in the mounting member 200 according to the present embodiment, as shown in FIG. 1, the liquid agent supply section and the gas supply section are provided inside the cylinder section 220 . Specifically, the cylinder portion 220 has a cylindrical gas cylinder mechanism portion 221 located on the lower surface side of the cylinder lid portion 226 as the gas supply portion. Further, the cylinder section 220 has a liquid agent cylinder mechanism section 222 provided below the gas cylinder mechanism section 221 as the liquid agent supply section. Furthermore, the cylinder portion 220 has an annular connecting portion 223 that connects the gas cylinder mechanism portion 221 and the liquid cylinder mechanism portion 222 described above. More specifically, the liquid agent cylinder mechanism portion 222 is provided so as to hang down from the gas cylinder mechanism portion 221 and has a cylindrical shape with a diameter smaller than that of the gas cylinder mechanism portion 221 . Further, the annular connecting portion 223 connects the lower end of the gas cylinder mechanism portion 221 and the upper end of the liquid cylinder mechanism portion 222 to each other. When the entire mounting member 200 is viewed from above, the gas cylinder mechanism 221, the liquid cylinder mechanism 222, and the cap member 210 are arranged such that their central axes are coaxial.

Furthermore, a gas piston 250 is positioned inside the gas cylinder mechanism 221 . The space between the gas piston 250 and the annular connecting portion 223 inside the gas cylinder mechanism portion 221 is hereinafter referred to as a gas pump chamber 260 . Gas can be stored in the gas pump chamber 260 . Moreover, the inside of the gas pump chamber 260 has a variable capacity, and can be expanded and contracted as the gas piston 250 moves up and down.

The gas piston 250 is formed in a cylindrical shape, and has a cylindrical portion 251 that is loosely fitted on the center portion of the piston guide 290 in the vertical direction, and a cylindrical portion 251 that extends radially outward from the cylindrical portion 251 . and a piston portion 252 projecting outward. An outer peripheral ring portion 253 is provided on the peripheral portion of the piston portion 252 . The outer ring portion 253 is in air-tight contact with the inner peripheral surface of the gas cylinder mechanism portion 221 in a circumferential shape, and slides against the inner peripheral surface of the gas cylinder mechanism portion 221 when the gas piston 250 moves up and down. can move. The lower limit position of the relative movement of the cylindrical portion 251 with respect to the piston guide 290 is the position where the lower end portion of the cylindrical portion 251 hits the valve-constituting groove 134 and the gas discharge valve 134a is closed. Furthermore, as shown in FIG. 2 , a plurality of intake openings 254 are provided in a portion of the piston portion 252 near the cylindrical portion 251 so as to vertically penetrate the piston portion 252 .

An annular suction valve member 155 is fitted on the lower side of the cylindrical portion 251 of the gas piston 250 . The intake valve member 155 has a valve body, which is an annular membrane projecting radially outward. The valve body of the suction valve member 155 and the piston portion 252 constitute a gas suction valve 155a. Specifically, when the head portion 230 is raised, that is, when the gas pump chamber 260 is contracted, the valve element of the intake valve member 155 is brought into close contact with the piston portion 252 to close the intake opening 254 . On the other hand, when the head portion 230 descends, that is, when the gas pump chamber 260 expands, the air pressure in the gas pump chamber 260 decreases, so the valve body of the suction valve member 155 separates from the piston portion 252 and the suction opening 254 is opened. be. Then, the gas outside the foam dispenser 10 is taken into the gas pump chamber 260 through the gap located between the upper end of the standing tube portion 217 and the inner tube portion 234b (see FIG. 5).

In addition, inside the upper end of the container body 100, a valve 103 is provided that is in close contact with the outer peripheral surface of the gas cylinder mechanism 221 in a circular manner, and when the gas cylinder mechanism 221 moves up and down, the gas is It can slide on the outer peripheral surface of the cylinder mechanism portion 221 . With this valve 103, when the head portion 230 is pushed back upward by the biasing force of the coil spring 128, gas from the outside can be taken into the container main body 100 (see FIG. 8), while the container main body 100 is tilted. When the container body 100 is closed, the liquid medicine in the container main body 100 is prevented from leaking out from the gap through which the gas passes (see FIG. 1).

Incidentally, the operation when the gas is supplied to the former mechanism 300 by the gas cylinder mechanism 221 in this embodiment will be described later.

The liquid cylinder mechanism 222 has a liquid piston 270 . In the following description, in the liquid agent cylinder mechanism portion 222, the space provided between the check valve 180a constituted by the ball valve 180 and the valve seat portion 131 and the liquid agent intake valve 224a, which will be described later, is defined as the liquid agent. This is called a pump chamber 280 (liquid agent chamber). The liquid agent pump chamber 280 can store the liquid agent. Further, the inside of the liquid agent pump chamber 280 has a variable volume, and can be expanded and contracted as the head portion 230 moves up and down.

Specifically, the liquid piston 270 has a cylindrical (circular tubular) shape. The liquid piston 270 can be fixed to the piston guide 290 by inserting the lower end of the piston guide 290 into the upper end of the liquid piston 270 . A straight portion 222 a of the liquid cylinder mechanism 222 is provided below the lower end of the liquid piston 270 .

Further, in the liquid agent cylinder mechanism portion 222, as shown in FIG. 1, a liquid agent intake valve 224a is configured by the ball valve 224 and the reduced diameter portion 222b. Since the liquid agent intake valve 224a is a check valve, it is hereinafter also referred to as the check valve 224a. The liquid cylinder mechanism 222 has a straight portion 222a that extends in the vertical direction, and a reduced diameter portion 222b that is connected to the lower portion of the straight portion 222a and whose diameter decreases downward. .

Further, the diameter-reduced portion 222b has a cylindrical tube holding portion 225 that is connected to the lower portion of the diameter-reduced portion 222b. The dip tube 228 is held at the lower end of the cylinder portion 220 by inserting the upper end of the dip tube 228 into the tube holding portion 225 . By doing so, the liquid agent in the container main body 100 is sucked into the liquid agent pump chamber 280 via the dip tube 228 .

The coil spring 128 (accumulator) is, for example, a compression type coil spring and is held in a compressed state. Therefore, the coil spring 128 can urge the cylinder portion 220 and the head portion 230 upward. The coil spring 128 is loosely fitted to the intermediate portion (more specifically, the intermediate portion in the vertical direction) of the straight portion 222a. The coil spring 128 is supported by a spring receiving portion 124 of the support base 120, which will be described later. Further, the upper end of the coil spring 128 is fixed to the portion where the annular connecting portion 223 and the straight portion 222a of the liquid cylinder mechanism portion 222 are connected.

Coil spring 128 stores energy generated based on user manipulation of foam dispenser 10 . Specifically, when the pressing operation portion 232 is pressed, the cylinder portion 220 is pressed downward, thereby compressing the coil spring 128 . As a result, elastic energy generated based on the pressing operation is stored in the coil spring 128 .

In addition, the coil spring 128 releases the accumulated energy based on the user's operation to supply the liquid agent stored in the liquid agent pump chamber 280 and the gas stored in the gas pump chamber 260 to the former mechanism 300 ( Details will be described later.).

The support base 120 is arranged in the center of the upper surface of the bottom portion 106 of the container body 100 . The support base 120 has a cylindrical portion 122 and a conical portion 126 . The lower end of the cylindrical portion 122 and the upper end of the conical portion 126 are connected. A hole is provided in the central portion of the conical portion 126 , and the liquid agent stored in the container body 100 passes through the hole and flows into the support base 120 . The liquid agent that has flowed into the inside of the support base 120 is supplied to the liquid agent pump chamber 280 when the check valve 224a composed of the ball valve 224 and the reduced diameter portion 222b opens. A spring receiving portion 124 (supporting portion) is provided at the upper end of the cylindrical portion 122 . The spring receiving portion 124 supports the lower end of the coil spring 128 described above.

Thus, the foam dispenser 10 according to this embodiment has a configuration in which the liquid agent is supplied to the liquid agent pump chamber 280 and the gas is supplied to the gas pump chamber 260 by the user's pressing operation. Furthermore, the foam dispenser 10 has a configuration in which the restoring force of the coil spring 128 is used to supply the gas and the liquid agent to the foamer mechanism 300 . Therefore, the foam dispenser 10 according to this embodiment is realized with a simple structure.

Next, the operation of supplying gas and liquid agent to the former mechanism 300 by the gas cylinder mechanism portion 221 and the liquid agent cylinder mechanism portion 222 in this embodiment will be described.

First, in a normal state in which the head section 230 is not pressed down, the head section 230 is stopped at the upper limit position as shown in FIG. In this state, the ball valve 180 is in contact with the valve seat portion 131, and the check valve 180a formed by the ball valve 180 and the valve seat portion 131 is closed. In this state, the ball valve 224 is in contact with the reduced diameter portion 222b, and the check valve 224a formed by the ball valve 224 and the reduced diameter portion 222b is closed.

Furthermore, in this state, as shown in FIG. 2, the lower end of the cylindrical portion 251 of the gas piston 250 is slightly raised with respect to the valve-constituting groove 134 on the upper surface of the flange portion 233 of the piston guide 290. , the gas discharge valve 134a constituted by the lower end of the cylindrical portion 251 and the valve-constituting groove 134 is in an open state. Further, the valve body of the suction valve member 155 is in contact with the piston portion 252 of the gas piston 250, and the gas suction valve 155a composed of the valve body of the suction valve member 155 and the piston portion 252 is closed.

Next, the operation of supplying the gas to the gas pump chamber 260 and the liquid agent to the liquid agent pump chamber 280 will be described with reference to FIGS. 4 to 6. FIG. FIG. 4 is an explanatory diagram showing a side sectional view of the foam dispenser 10 with the head portion 230 being pushed down. Also, FIG. 5 is an enlarged view of the area A2 indicated by the two-dot chain line in FIG. Furthermore, FIG. 6 is an enlarged view of a region A3 indicated by a two-dot chain line in FIG.

When the user presses down the head portion 230 , the cylinder lid portion 226 , the gas cylinder mechanism portion 221 and the liquid cylinder mechanism portion 222 descend together with the head portion 230 . Along with this descent, the coil spring 128 is compressed and the gas pump chamber 260 is expanded. At this time, the suction valve member 155 is opened as shown in FIG. 5 by reducing the pressure in the gas pump chamber 260 . As a result, the gas passes through the path indicated by the solid arrow in FIG. 5 and is supplied to the gas pump chamber 260 .

On the other hand, the liquid agent pump chamber 280 also expands when the head portion 230 is pushed down by the user. At this time, the pressure inside the liquid agent pump chamber 280 is reduced. As a result, as shown in FIG. 6, the ball valve 224 is slightly lifted, and the check valve 224a composed of the ball valve 224 and the reduced diameter portion 222b is opened. As a result, the liquid agent in the container main body 100 is supplied to the liquid agent pump chamber 280 via the check valve 224a through the path indicated by the dashed line in FIG.

At this time, the coil spring 128 is deformed according to the pressure applied to the pressing operation portion 232 . Specifically, the coil spring 128 contracts according to the pressure applied to the pressing operation portion 232 . As a result, elastic energy is accumulated in the coil spring 128 .

In the present embodiment, the gas is supplied to the gas pump chamber 260 by expanding the inside of the gas pump chamber 260 due to the pressure received by the pressing operation section 232 . Therefore, the user can supply the gas to the gas pump chamber 260 and store the elastic energy in the coil spring 128 by a single pressing operation on the pressing operation portion 232, and the foam dispenser can be easily operated. Ten operations can be performed.

Further, in the present embodiment, the liquid agent is supplied to the liquid agent pump chamber 280 by expanding the inside of the liquid agent pump chamber 280 due to the pressure received by the pressing operation portion 232 . Therefore, the user can supply the liquid agent to the liquid agent pump chamber 280 and store the elastic energy in the coil spring 128 by a single pressing operation on the pressing operation portion 232, and the foam dispenser can be easily operated. It becomes possible to perform 10 operations.

FIG. 7 is a diagram showing a state in which the head portion 230 has reached its lowest point. In this state, the check valve 180a composed of the ball valve 180 and the valve seat portion 131 is closed. Further, the check valve 224a composed of the ball valve 224 and the reduced diameter portion 222b is closed. Therefore, the liquid agent is stably stored in the liquid agent pump chamber 280 .

Next, with reference to FIGS. 8 and 9, the operation of supplying the gas and liquid agent to the former mechanism 300 will be described. FIG. 8 is an explanatory diagram showing a side sectional view of the foam dispenser 10 in a state where the cylinder portion 220 is raised according to the elastic energy of the coil spring 128. FIG. Also, FIG. 9 is an enlarged view of a region A4 indicated by a two-dot chain line in FIG.

In this embodiment, the coil spring 128 releases the elastic energy when the user's operation to press the pressing operation portion 232 is released. At this time, the coil spring 128 lifts the gas cylinder mechanism 221, the liquid cylinder mechanism 222, and the like. Thereby, as will be described later, the gas stored in the gas pump chamber 260 and the liquid agent stored in the liquid agent pump chamber 280 are supplied to the foamer mechanism 300 .

When the liquid material cylinder mechanism 222 rises according to the elastic energy of the coil spring 128, the volume of the liquid material pump chamber 280 contracts. At this time, the check valve 224a composed of the ball valve 224 and the reduced diameter portion 222b is closed. When the volume of the liquid agent pump chamber 280 shrinks, the liquid agent in the liquid agent pump chamber 280 is pressurized, and the liquid agent is pushed upward from the liquid agent pump chamber 280 . The ball valve 180 is lifted from the valve seat portion 131 by the pressure of the extruded liquid agent, and the check valve 180a is opened. Then, the liquid agent is supplied from the liquid agent pump chamber 280 to the foamer mechanism 300 via the check valve 180a. Specifically, the liquid agent moves in the direction indicated by the dashed arrow in FIG. 9 and is supplied to the former mechanism 300 . Thus, in this embodiment, the user can supply the liquid agent to the foamer mechanism 300 by releasing the pressure on the pressing operation portion 232 .

Further, according to the elastic energy of the coil spring 128, the gas cylinder mechanism part 221 is lifted, and the gas pump chamber 260 is also contracted. At this time, the gas in the gas pump chamber 260 is pressurized, and the gas piston 250 slightly rises with respect to the piston guide 290, thereby discharging the gas formed by the cylindrical portion 251 and the valve configuration groove 134. Valve 134a opens. As a result, the gas in the gas pump chamber 260 is pushed upward through the gas discharge valve 134 a and the gas flow path 290 a provided between the tubular portion 251 and the piston guide 290 . Furthermore, above the cylindrical portion 251 of the gas piston 250, a gas flow path 290b is provided that is formed by a gap between the inner peripheral surface of the lower portion of the cylindrical portion 218 and the outer peripheral surface of the piston guide 290 (Fig. 9). The gas flow path 290 b communicates with a gas flow path 290 a provided between the tubular portion 251 and the piston guide 290 . Therefore, the gas in the gas pump chamber 260 flows through the gas discharge valve 134a, the gas passage 290a provided between the cylindrical portion 251 and the piston guide 290, and the inner peripheral surface of the lower portion of the cylindrical portion 218. It is supplied to the former mechanism 300 through the gas flow path 290b provided between the outer peripheral surface of the piston guide 290 and the gas flow path 290b. That is, the gas in the gas pump chamber 260 is supplied to the former mechanism 300 through the path indicated by the solid arrow in FIG.

Thus, in this embodiment, the gas can be supplied to the foamer mechanism 300 by the user releasing the pressure on the pressing operation portion 232 . Therefore, the user can easily eject the liquid medicine having a certain foam quality.

At this time, the coil spring 128 can supply the liquid agent and the gas to the former mechanism 300 at a constant supply rate. The supply speed is affected by design conditions such as the elastic constant of the coil spring 128, the deformation rate of the coil spring 128, the viscosity of the liquid agent, the structure of the former mechanism 300, and the size of the passage through which the liquid agent or gas passes. According to the foam dispenser 10 according to this embodiment, by appropriately designing these design conditions, the supply speed can be adjusted and kept constant. More simply, by adjusting the force applied to the coil spring 128, the speed of supplying the liquid agent and the gas to the former mechanism 300 can be appropriately adjusted.

In the foam dispenser 10 according to this embodiment, the liquid agent and the gas are not supplied to the foamer mechanism 300 during the pressing operation by the user. As described above, in the foam dispenser 10 according to this embodiment, the elastic energy accumulated in the coil spring 128 is released to supply the liquid agent and the gas to the foamer mechanism 300 . The supply speed at this time is determined by the above design conditions and the like regardless of the pressing speed. Therefore, even if the user presses the pressing operation portion 232 at any depressing speed, it is possible to eject the foam-like liquid agent from the ejection port 216 based on the above design conditions. Furthermore, by appropriately adjusting the above design conditions, the user can eject a liquid agent having uniform foam quality.

As described above, according to the foam dispenser 10 according to each embodiment of the present invention, it is possible to provide the foam dispenser 10 capable of discharging a liquid agent having a constant foam quality regardless of the pressing speed. can be done. Therefore, according to the foam dispenser 10 according to each embodiment of the present invention, it is possible to eject a liquid agent having a constant foam quality regardless of the user.

Further, in the present embodiment, the storage section includes an elastic body. More specifically, in this embodiment, the elastic body includes coil spring 128 . Therefore, the user can easily store energy in the storage unit by the pressing operation.

Also, in this embodiment, the accumulator includes a coil spring 128 . Therefore, the user can push down the coil spring 128 with a light pressure. As a result, the user can easily accumulate elastic energy in the coil spring 128 .

<2. Example>
Here, an example of a foamy liquid agent obtained by using the foam dispenser 10 according to the present invention described above will be described with reference to FIG. FIG. 10 is a photographed image of a foamy liquid agent ejected into a sample container from the foam dispensers of Examples and Comparative Examples.

The comparative example here is the foam dispenser 40 shown in FIG. FIG. 11 is an explanatory diagram showing a side cross section of a foam dispenser 40 according to a comparative example.

The foam dispenser 40 according to the comparative example mainly includes a container body 400 filled with a liquid medicine and a foam discharge cap 500 detachably attached to the container body 400 as shown in FIG. An outline of the configuration and operation of the foam dispenser 40 will be described below.

The container body 400 has a space that can be filled with a liquid agent, and the liquid agent is stored inside the container body 400 . As shown in FIG. 11, the foam discharge cap 500 can be detachably attached to the mouth/neck portion 404 of the container body 400 described above by a fixing method such as screwing. The foam discharge cap 500 includes a cap member 510 to be attached to the mouth/neck portion 404 , a cylinder portion 520 for generating a foamy liquid agent, and a head portion 530 for discharging the foamy liquid agent to the outside of the foam dispenser 10 . and

Specifically, the cap member 510 has a cylindrical mounting portion 512 , and the entire foam discharge cap 500 is mounted on the container body 400 by screwing the mounting portion 512 to the mouth/neck portion 404 . can do.

Furthermore, similarly to the cylinder portion 220 according to the first embodiment, the cylinder portion 520 according to the comparative example includes a foaming mechanism 300 that mixes a liquid agent and a gas to change the liquid agent into foam, and the container main body 400. and a gas pump chamber 560 for taking in gas from the outside of the foam dispenser 40 and supplying the gas to the foamer mechanism 300 .

Moreover, as shown in FIG. 11, the cylinder portion 520 according to the comparative example has a poppet 576 that is a rod-shaped member that extends along the vertical direction. The poppet 576 penetrates the liquid piston 570 and extends from the inside of the piston guide 590 to the inside of the liquid cylinder mechanism 522 . The poppet 576 is vertically movable relative to the hydraulic piston 570 . A lower end portion of the poppet 576 constitutes a valve body portion 578 . The lower surface of the valve body portion 578 can be liquid-tightly adhered to the valve seat portion 524, which will be described later. The valve body portion 578 and the valve seat portion 524 constitute a liquid agent intake valve. A spring receiving portion 574 is formed at the upper end portion of the valve body portion 578 to receive a downward bias from a coil spring 572, which will be described later.

The head section 530 has a nozzle section 540 provided as an integral body with the head section 530, as shown in FIG. Furthermore, a discharge port 542 is provided at the tip of the nozzle portion 540 . The internal space of the nozzle part 540 communicates with the foamer mechanism 300 , and the liquid agent foamed by the foamer mechanism 300 can be ejected from the ejection port 542 to the outside of the foam dispenser 10 .

Furthermore, the head section 530 is configured to be movable up and down. Specifically, the head section 530 has a pressing operation section 532 that receives a pressing operation by a user's finger or the like. When the pressing operation portion 532 is pressed down, the liquid in the liquid pump chamber 580 is pressurized, the check valve composed of the ball valve 480 and the valve seat portion 431 is opened, and the liquid pump chamber 580 is opened. The liquid inside is supplied to the former mechanism 300 through the check valve. Further, when the pressing operation portion 532 is pressed down, the gas in the gas pump chamber 560 is pressurized. At this time, the gas in the gas pump chamber 560 flows through the body discharge valve constituted by the cylindrical portion 551 and the valve-constituting groove 434 and the gas flow path provided between the cylindrical portion 551 and the piston guide 590. , and a gas passage provided between the inner peripheral surface of the lower end portion of the cylindrical portion 534 and the outer peripheral surface of the piston guide 590 , the gas is supplied to the former mechanism 300 . Note that the structure of the former mechanism 300 is substantially the same as the structure of the former mechanism 300 described with reference to FIG. 3, so description thereof will be omitted here.

The liquid agent supplied to the former mechanism 300 becomes a foamy liquid agent and is ejected from the ejection port 542 provided at the tip of the nozzle portion 540 of the head portion 530 . As described above, in the foam dispenser 40 according to the comparative example, the liquid agent and the gas are supplied to the foamer mechanism 300 in accordance with the user's pressing operation of the pressing operation portion 532 . Therefore, the speed at which the liquid agent and gas are supplied to the former mechanism 300 increases as the speed of the pressing operation by the user increases.

It should be noted that when the user releases the pressing operation of the head portion 530 , the liquid piston 570 , the piston guide 590 , and the head portion 530 rise together according to the elastic energy of the coil spring 572 . As a result, the valve body portion 578 and the valve seat portion 524 are separated from each other. After that, the liquid piston 570 , the piston guide 590 and the head portion 530 continue to rise together according to the elastic energy of the coil spring 572 .

At this time, the valve body portion 578 of the poppet 576 rises slightly in the gap between the lower end of the coil spring 572 and the valve seat portion 524 . As the valve element 578 rises, the liquid agent intake valve formed by the valve element 578 and the valve seat portion 524 at the lower end of the liquid agent pump chamber 580 opens, and the liquid agent stored in the container main body 400 is Liquid is drawn into the liquid pump chamber 580 via the liquid inlet valve.

Further, when the head portion 530 is raised, that is, when the gas pump chamber 560 is expanded, the air pressure in the gas pump chamber 560 decreases, so the valve body of the suction valve member 455 is separated from the piston portion 552 and the suction opening 554 is opened. be. Then, the gas outside the foam dispenser 40 is taken into the gas pump chamber 560 through the gap located between the upper end of the standing tubular portion 516 and the tubular portion 534 .

FIG. 12 is a schematic diagram showing the relationship between the pressing speed of the pressing operation portion by the user and the pressing force of the liquid and the gas. In FIG. 12, the solid line shows the relationship between the pressing speed and pressure in the foam dispenser 10 according to the present embodiment, and the broken line shows the relationship between the pressing speed and pressure in the foam dispenser 10 according to the comparative example. there is As shown in FIG. 12, in the foam dispenser 40 according to the comparative example, the pressure increases as the pressure speed increases. On the other hand, in the foam dispenser 10 according to this embodiment, even if the pressing speed increases, the pressing does not change.

Next, foam-like foams obtained by using the foam dispenser 10 according to the example of the present invention (Examples 1 to 5) and the foam dispenser 40 according to the above-described comparative example (Comparative Examples 1 to 5) An example of liquid agents will be described with reference to FIG. The pressing speed of the pressing operation portion in Example 1 and Comparative Example 1 was 10 mm/sec, the pressing speed of the pressing operation portion in Example 2 and Comparative Example 2 was 30 mm/sec, and the pressing operation in Example 3 and Comparative Example 3 The pressing speed of the pressing operation portion was set to 50 mm/sec.

Further, FIG. 10 shows captured images of the foam-like liquid agents ejected from the foam dispensers of Examples 1 to 5 and Comparative Examples 1 to 5 into sample containers. As can be seen from FIG. 10, from the foam dispensers 40 according to Comparative Examples 2 to 5, non-uniform foamy liquid agents containing large bubbles were ejected. In other words, there was variation in foam quality in the ejected liquid agent. Specifically, in Comparative Examples 2 to 5, bubbles with varying sizes (crab bubbles) were generated, and the appearance and quality of the bubbles were significantly deteriorated. This is probably because the supply speed of the liquid agent and the gas increased as the pressing speed increased, and the liquid agent and the gas were no longer uniformly mixed.

On the other hand, from the foam dispensers 10 according to Examples 1-5, fine foam-like liquid agents having improved uniformity than the foam-like liquid agents according to Comparative Examples 2-5 were ejected. In particular, from the foam dispensers 10 according to Examples 1 to 5, the liquid agent having a constant foam quality was ejected even when the depressing speed of the pressing operation portion 232 was increased.

As described above, according to the foam dispenser 10 according to the present embodiment, it was found that a liquid agent having a constant foam quality could be ejected regardless of the pressing speed.

<3. Second Embodiment>
Next, a foam dispenser 70 according to a second embodiment will be described with reference to FIGS. 13 and 14. FIG. FIG. 13 is a perspective view showing a foam dispenser 70 according to the second embodiment. Moreover, FIG. 14 is an explanatory view showing a side cross section of the foam dispenser 70 according to the second embodiment.

A foam dispenser 70 according to the second embodiment includes a container body 700 filled with a liquid agent, a mounting member 810 detachably attached to the container body 700, and a head portion for discharging a foamy liquid agent. 830 and a cylinder part 220 for supplying liquid agent and gas to the former mechanism 300 . The outline of each part of the foam dispenser 10 will be described below. Here, mainly the structure of the head portion 830 which is different between the foam dispenser 10 described with reference to FIGS. 1 to 9 and the foam dispenser 70 according to the second embodiment will be described in detail.

A head portion 830 according to the second embodiment includes a first cap 831 and a second cap 835 . The upper surface of the first cap 831 is a pressing operation portion 832 . When the pressing operation portion 832 is pressed by the user's operation, the head portion 830 according to the second embodiment is pushed downward. Further, as shown in FIG. 13, eight discharge ports 833 are provided on the upper surface of the first cap 831 (that is, the pressing operation portion 832). In the foam dispenser 70 according to the second embodiment, foam liquid agents are ejected upward from these eight ejection ports 833 . Although eight ejection ports 833 are illustrated in FIG. 13, the number of ejection ports formed in the foam dispenser 70 may be seven or less, or may be nine or more. .

As shown in FIG. 14, a foam dispenser 70 according to the second embodiment mainly has a head portion 830, a mounting member 810, a cylinder portion 220, and a container body 700. As shown in FIG. Since the structure of the cylinder portion 220 according to the second embodiment is substantially the same as the structure of the cylinder portion 220 shown in FIG. 1, the description thereof is omitted here.

Next, as shown in FIG. 14, the first cap 831 is fixed to the second cap 835 by being fitted over the second cap 835 . The second cap 835 has a triple structure and has a first cylindrical portion 837a, a second cylindrical portion 837b, and a third cylindrical portion 837c. The first cylindrical portion 837 a is fitted onto the mounting member 810 .

Also, the second cylindrical portion 837b is inserted through a hole provided in the mounting member 810 and is in contact with the upper portion of the cylinder lid portion 826 provided in the cylinder portion 220 . When the user presses the pressing operation portion 832 of the head portion 830, the head portion 830 descends. At this time, since the cylinder lid portion 826 is fixed to the cylinder portion 220, the inside of the gas pump chamber 260 and the inside of the liquid agent pump chamber 280 expand. is supplied.

Further, the third cylindrical portion 837c fits into a groove provided in the mounting portion 812 of the mounting member 810. As shown in FIG. Since the lower end of the third cylindrical portion 837c contacts the lower end of the groove, the vertical operating range of the head portion 830 is restricted.

A packing 819 is fitted on the upper end of the cylinder portion 220 . The internal space of the container main body 700 can be sealed in a state in which the mounting portion 812 is attached to the container main body 700 by screwing or the like.

Next, operation of the foam dispenser 70 according to the second embodiment will be described. Operations that are substantially the same as the operations of the foam dispenser 10 according to the above-described embodiment will be omitted as appropriate.

When the pressing operation portion 832 is pressed by the user's operation, the gas is supplied to the gas pump chamber 260 and the liquid agent is supplied to the liquid agent pump chamber 280 . At this time, the user presses the pressing operation portion 832 by, for example, pressing the palm against the pressing operation portion 832 .

For example, when the user releases the palm that has been pressed against the pressing operation portion 832 from the pressing operation portion 832 and releases the pressure on the pressing operation portion 832 , the liquid agent and the gas are supplied to the former mechanism 300 . At this time, as in the first embodiment, the liquid agent and the gas are supplied to the former mechanism 300 at a constant supply speed regardless of the pressing speed of the user. The liquid agent supplied to the foamer mechanism 300 is foamed and ejected from the upper portion of the eight ejection ports 833 .

At this time, since the user's palm is away from the pressing operation portion 832, adhesion of the foamy liquid agent to the palm is suppressed. The ejected foamy liquid agent adheres to the upper surface of the pressing operation portion 832 . A user can pick up the liquid agent and use the liquid agent.

As described above, in the foam dispenser 70 according to the second embodiment, the foamed liquid agent is ejected while the user is releasing the pressing operation portion 832 . Furthermore, the user can scoop up and use the ejected liquid agent. Therefore, even when one hand is occupied, the user can use the other hand to discharge the foamy liquid agent from the foam dispenser 70 and use the liquid agent. In addition, since the ejection port 833 faces upward, the user can enjoy watching the foamy liquid agent being ejected and being formed into a shape corresponding to the shape of the ejection port 833 . can.

Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention belongs can conceive of various modifications or modifications within the scope of the technical idea described in the claims. It is understood that these also naturally belong to the technical scope of the present invention.

The structure and operation of the foam dispenser 10 described above are merely examples, and known structures may be applied to the above-described embodiments without departing from the gist of the present invention.

Moreover, although the parts constituting the foam dispenser 10 according to each embodiment of the present invention described above are not particularly limited, they can be formed from various resin materials, for example. Also, the foam dispenser 10 can be manufactured by various known molding processes.

For example, in the above embodiment, the storage unit is the elastic coil spring 128, but the present invention is not limited to such an example. The accumulating portion may be an elastic body other than the coil spring 128, or may be composed of a material other than the elastic body.

Further, in the above-described embodiment, the foam discharger having the mesh part in the foaming mechanism is used, but the foaming mechanism without the mesh part is also effective.

10, 70 Foam Dispenser 100 Container Body 102 Body 104 Mouth-Neck 106 Bottom 120 Support Base 122 Cylindrical Part 124 Spring Receiving Part 126 Conical Part 128 Coil Spring (Accumulation Part)
131 Valve seat portion 131a Through hole 134 Valve configuration groove 155 Suction valve member 180 Ball valve 200 Mounting member 210 Cap member 212 Mounting portion 214 Nozzle portion 216, 833 Discharge port 217 Upright cylindrical portion 218 Cylindrical portion 220 Cylinder portion 221 Gas cylinder mechanism Part 222 Liquid cylinder mechanism part 222a Straight part 222b Diameter reduction part 223 Annular connecting part 224 Ball valve 225 Tube holding part 226 Cylinder lid part 228 Dip tube 230, 800 Head part 232, 832 Pressing operation part 233 Flange part 234 Cylindrical part 234a Outer cylinder portion 234b Inner cylinder portion 250 Gas piston 251 Cylindrical portion 252 Piston portion 253 Outer ring portion 254 Suction opening 260 Gas pump chamber (gas chamber)
270 liquid piston 280 liquid pump chamber (liquid chamber)
290 piston guides 290a, 290b gas passage 300 former mechanism 310 outer member 315a passage 315b passage 320 inner member 330a first mesh portion 330b second mesh portion

Claims (10)

A liquid agent chamber for storing a liquid agent, a gas chamber for storing a gas, a mixing unit for mixing the liquid agent and the gas to make the liquid agent foamy, and accumulating energy generated based on user's operation. a foam dispenser comprising:
It comprises a pressing operation part that receives pressing by the user's operation,
During the pressing operation of the pressing operation unit, the liquid agent stored in the liquid agent chamber and the gas stored in the gas chamber are not supplied to the mixing unit,
When the pressure on the pressing operation portion is released, the accumulation portion releases the accumulated energy, so that the liquid agent stored in the liquid agent chamber and the gas stored in the gas chamber are separated from each other. A foam dispenser that is supplied to a mixing section and ejects a liquid agent foamed in the mixing section . 2. The foam dispenser according to claim 1, wherein said accumulation section supplies said liquid agent and said gas to said mixing section at a constant supply rate. 3. The foam dispenser according to claim 1 or 2, wherein the accumulator comprises an elastic body and the energy is stored in the elastic body. 4. The foam dispenser of claim 3, wherein said resilient body comprises a spring. The bubble according to any one of claims 1 to 4 , wherein the storage unit is connected to the pressing operation unit, deforms in response to pressing on the pressing operation unit, and stores the energy based on the deformation. Ejector. The inside of the gas chamber has a variable capacity, and the gas is supplied to the gas chamber by expanding the inside of the gas chamber due to the pressure received by the pressure operation unit . A foam dispenser according to any one of the preceding claims. The inside of the liquid agent chamber has a variable capacity, and the liquid agent is supplied to the liquid agent chamber by expanding the inside of the liquid agent chamber due to the pressure received by the pressing operation section . A foam dispenser according to any one of the preceding claims. The foam dispenser according to any one of claims 1 to 7 , wherein the pressing operation section has a discharge port for discharging the foamed liquid agent. Claims 1 to 8 , further comprising a support portion that supports one end of the accumulation portion, and an end portion of the accumulation portion opposite to the one end is fixed to at least one of the gas chamber and the liquid agent chamber. A foam dispenser according to any one of the preceding claims. The foam dispenser according to any one of claims 1 to 9 , wherein the mixing section has a mesh section through which the liquid agent and the gas pass.

Images