JP2021014300A - Foam ejector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam ejector capable of ejecting a liquid agent having a constant foam quality regardless of the pressing speed of a head portion. SOLUTION: A liquid agent chamber for storing a liquid agent, a gas chamber for storing a gas, a mixing portion for mixing the liquid agent and the gas to form a foam, and an operation of a user are generated. A foam discharger including a storage unit for storing the stored energy, and the storage unit is stored in the liquid agent and the gas chamber stored in the liquid agent chamber by releasing the stored energy. A foam ejector for supplying the gas to the mixing portion is provided. [Selection diagram] Fig. 1

Description

The present invention relates to a foam ejector.

Conventionally, a technique related to a discharger that discharges a liquid agent in the form of foam has been proposed. For example, Patent Document 1 describes a foam ejector capable of mixing the content liquid with air to form bubbles and discharging the contents not only in the outward path in which the pump head portion is pushed in but also in the return path in which the pump head portion is pushed back upward. Has been done.

Japanese Unexamined Patent Publication No. 2015-98328

However, in the foam ejector described in Patent Document 1, by pushing down the head portion, the cylinder is compressed to exhaust or drain the liquid, and the air and the liquid agent are mixed. Therefore, the flow velocity of the air or the liquid agent depends on the pressing speed of the head portion. Since the foam quality of the discharged liquid agent depends on the air flow rate during mixing and the flow velocity of the liquid agent, the foam quality after mixing varies depending on the difference in pressing speed.

Therefore, the present invention is to provide a foam ejector 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 a certain viewpoint of the present invention, the liquid agent chamber for storing the liquid agent, the gas chamber for storing the gas, the liquid agent and the gas are mixed, and the liquid agent is made into a foam. A foam discharger including a mixing unit and a storage unit that stores energy generated based on a user's operation, and the storage unit releases the stored energy to release the stored energy, thereby causing the liquid agent chamber. Provided is a foam ejector that supplies the liquid agent stored in the liquid agent and the gas stored in the gas chamber to the mixing unit.

According to the present invention, there is provided a foam ejector capable of ejecting a liquid agent having a constant foam quality regardless of the pressing speed of the head portion.

It is explanatory drawing which shows the side cross section of the foam ejector which concerns on 1st Embodiment. It is an enlarged view of the region A1 shown by the alternate long and short dash line in FIG. It is explanatory drawing which shows the perspective cross section of the former mechanism which concerns on 1st Embodiment. It is explanatory drawing which shows the side sectional view of the foam discharger in the state which the head part is pushed down. FIG. 4 is an enlarged view of the region A2 shown by the alternate long and short dash line in FIG. FIG. 4 is an enlarged view of the region A3 shown by the alternate long and short dash line. It is a figure which shows the state which the push-down operation of a head part is finished, and the position of a head part has reached the lowest point. It is explanatory drawing which shows the side sectional view of the foam discharger in the state which the cylinder part rises according to the elastic energy of a coil spring. FIG. 8 is an enlarged view of the region A4 shown by the alternate long and short dash line. It is a photograph image of the foam-like liquid agent discharged from the foam discharger of Examples and Comparative Examples into a sample container. It is explanatory drawing which shows the side cross section of the foam discharger which concerns on a comparative example. It is the schematic which shows the relationship between the pressing speed to a pressing operation part by a user, and the pressing of a liquid and a gas. It is a perspective view which shows the foam discharger which concerns on 2nd Embodiment. It is explanatory drawing which shows the side cross section of the foam ejector which concerns on 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 the drawings, components having substantially the same functional configuration are designated by the same reference numerals, so that duplicate description will be omitted. Further, in the present specification and the drawings, similar components of different embodiments may be distinguished by adding different alphabets after the same reference numerals. However, if it is not necessary to distinguish each of the similar components, only the same reference numerals are given.

The drawings referred to in the following description are drawings for facilitating the explanation and understanding of the embodiments of the present invention, and for the sake of clarity, the shapes, dimensions, ratios, etc. shown in the drawings may differ from the actual ones. There is. Further, the description of the specific shape in the following description does not mean only the case where the shape is geometrically concerned, but has a difference to an extent permitted in the manufacture and use of the foam discharger. It means that a shape similar to the shape is also included. For example, when the term "disk-shaped" is used in the following description, it is not limited to a plate having a perfect circular surface, but also means a plate having a surface having a shape similar to a perfect circle such as an ellipse. It will be. Furthermore, in the following description, "substantially the same" as used for a specific diameter size or length does not mean only when there is a perfect mathematical or geometrical match, but a bubble. It also means that the size and length have a permissible difference in the manufacture and use of the discharger (for example, play (clearance) for facilitating the manufacture).

Further, in the following description, the vertical direction is determined with reference to the foam ejector according to the embodiment of the present invention. More specifically, the vertical direction in the following description means the vertical direction when the container body in which the liquid agent is stored is arranged on the lower side and the head portion is arranged on the upper side in the foam discharger described later. However, the vertical direction may be different from the vertical direction of the foam ejector and the elements (parts) constituting the foam ejector at the time of manufacturing and using the foam ejector. Further, in the following description, "upstream" and "downstream" mean the relative positions of the flow of gas, liquid, or foamy liquid. Specifically, the position closer to the start point of the flow with respect to these flows is referred to as the upstream, and the position relatively far from the start point is referred to as the "downstream" as compared with the "upstream".

Further, in the following description, the foamy liquid agent means a liquid agent in a state in which the liquid agent wraps the bubbles and contains a plurality of bubbles having a spherical shape or a shape similar to a spherical shape. And. Therefore, in the following description, the size of bubbles (specifically, the diameter of the spherical shape, etc.) and the distribution density of bubbles contained in the foamy liquid agent are not particularly limited, and for example, the liquid agent. The size and distribution density of bubbles change depending on the application of the bubble.

<1. First Embodiment>
The foam discharger 10 according to the first embodiment will be described. The foam discharger 10 according to the first embodiment foams the liquid agent by mixing the liquid agent filled in the container body 100, which will be described later, with a gas taken in from the outside of the container body 100. It is a container that can discharge to the outside of the discharger 10. Hereinafter, a schematic configuration of the foam ejector 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is an explanatory view showing a side cross section of the foam ejector 10 according to the first embodiment. Further, FIG. 2 is an enlarged view of the region A1 shown by the alternate long and short dash line in FIG.

As shown in FIG. 1, the foam discharger 10 according to the first embodiment has a container body 100 filled with a liquid agent, a support base 120 for supporting a coil spring 128 described later, and a mounting mounted on the container body 100. It mainly has a member 200. This coil spring 128 functions as a storage unit 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 discharger 10, a cylinder portion 220 that constitutes a liquid agent supply unit and a gas supply unit, which will be described later, and a head portion that receives pressure from the user. It mainly has 230. More specifically, the foam discharger 10 can change the liquid agent into a foam shape and discharge the liquid agent by pressing the pressing operation unit 232 of the head portion 230 downward by the user's fingers or the like. The foam discharger 10 according to the present embodiment is a container called a so-called pump former having a manual pump. That is, in the following description, the foam discharger 10 will be described as a pump former type container. The outline of each part of the foam ejector 10 will be described below. However, the foam ejector 10 according to the embodiment of the present invention is not limited to the pump former type container.

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

The liquid agent filled in the container body 100 is, for example, a washing pigment, a hand soap, a body soap, a cleansing agent, various detergents for tableware, bathrooms, etc., hair styling products, shaving cream, foundation, beauty essence, etc. Various liquids used in the form of foam, such as cosmetics, hair dyes, disinfectants, etc., 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 solid fat or oil droplet (emulsion) particles in addition to a solid substance such as a scrubbing agent. Further, as the particles or powder, one selected from solid polymer particles, wax, ultraviolet scattering agent, solid oil particles, abrasives, particles such as silica or organic additives, powder or various additives. The above particles, powders or additives may be contained.

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 and neck portion 104. In other words, by attaching the cap member 210 to the mouth and neck 104, the head 230 closes the opening of the mouth and neck 104. The mounting portion 212 may be formed in a double cylinder structure, and in such a case, the cylinder inside the mounting portion 212 is screwed with respect to the mouth neck 104. Further, the cap member 210 has an upright tubular portion 217 that erects upward from the upper portion of the mounting portion 212. The standing cylinder portion 217 has a cylindrical shape having a diameter smaller than that of the mounting portion 212, and a part of the head portion 230 is inserted into the standing cylinder portion 217. The standing cylinder portion 217 may have the same diameter as the mounting portion 212 or a larger diameter than the mounting portion 212, but both the mounting portion 212 and the standing cylinder portion 217 have a smaller diameter than the tubular portion 234 of the head portion 230 described later. There is. A part of the head portion 230 inserted into the upright tubular portion 217 is, for example, a lower portion of the inner tubular portion 234b separated inward in the radial direction from the outer tubular portion 234a forming the peripheral wall of the tubular portion 234. The outer cylinder portion 234a and the inner cylinder portion 234b have a missing portion for passing the nozzle portion 214 in a part in the circumferential direction.

As shown in FIG. 1, the cap member 210 has a nozzle portion 214 provided as an object integrated with the cap member 210. 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 former mechanism 300. The liquid agent foamed by the former mechanism 300 is discharged from the discharge port 216 to the outside of the foam discharger 10.

The cylinder unit 220 includes a former mechanism 300 (mixing unit) that mixes a liquid agent and a gas to form the liquid agent into a foam, and a liquid agent for supplying the liquid agent stored in the container body 100 to the former former mechanism 300. It includes a supply unit and a gas supply unit that takes in gas from the outside of the foam discharger 10 and supplies the gas to the former former mechanism 300. Specifically, the liquid agent supply unit is, for example, a liquid agent cylinder constituting a liquid agent pump, and pressurizes and supplies the liquid agent in the liquid agent pump chamber 280 (liquid agent chamber) described later to the former mechanism 300. Further, the gas supply unit is, for example, a gas cylinder constituting a gas pump, and pressurizes the gas in the gas pump chamber 260 (gas chamber) described later and supplies the gas to the former mechanism 300. The details of the liquid agent supply unit, the gas supply unit, and the former mechanism 300 will be described later with reference to other drawings. Further, the upper end of the cylinder portion 220 is closed by the cylinder lid portion 226.

In the following description, the gas mixed with the liquid agent in the former former mechanism 300 means air (outside air) containing nitrogen, oxygen, carbon dioxide, etc., which is taken into the inside of the foam discharger 10 from the outside. doing. However, in the present embodiment, the gas is not limited to air. For example, the gas may be a gas composed of various gaseous components pre-filled in the container body 100 of the foam discharger 10.

The head portion 230 is configured to be movable up and down. Specifically, the head unit 230 has a pressing operation unit 232 that receives a pressing operation by the user's fingers or the like. When a pushing operation is performed on the pressing operation unit 232 and the head portion 230 is pushed down relative to the mounting portion 212, the inside of the liquid agent pump chamber 280 expands to the liquid agent pump chamber 280. Liquid is supplied. Further, the inside of the gas pump chamber 260 is expanded to supply gas to the gas pump chamber 260. More specifically, the reduced diameter portion 222b that forms the bottom of the liquid agent pump chamber 280 together with the head portion 230 is pushed downward, so that the internal volume of the liquid agent pump chamber 280 increases, and the liquid agent pumps the liquid agent. As the gas flows into the chamber 280 and the annular connecting portion 223 forming the bottom of the gas pump chamber 260 together with the head portion 230 is pushed downward, the internal volume of the gas pump chamber 260 increases and the gas is released. It flows into the gas pump chamber 260.

Further, the head portion 230 has a tubular portion 234 that hangs downward from the pressing operation portion 232. Specifically, the tubular 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 urging of the coil spring 128. Specifically, in the state where the pressing operation is released, the head portion 230 rises relative to the cap member 210 along the vertical direction according to the elastic energy of the coil spring 128, and reaches the upper stop point. Moving. On the other hand, when the user performs a pushing operation on the head portion 230 (specifically, the pressing operation portion 232) against the urging of the coil spring 128, the head portion 230 is relative to the cap member 210. As it descends, elastic energy is stored 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 standing cylinder portion 217 of the cap member 210 secures a narrow flow path that enables air to be sucked between the outer cylinder portion 234a and the inner cylinder portion 234b. (See Fig. 5).

As described above, the former mechanism 300 is a mechanism for mixing the liquid agent and the gas to change the liquid agent into a foam shape, and as shown in FIGS. 1 and 2, the former cap member 210 has a tubular shape. It is housed in part 218. As described above, the upper side of the former 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 applied to the nozzle portion 214. It can be discharged to the outside of the foam discharger 10 through the discharge port 216. On the other hand, the lower side of the former mechanism 300 faces the ball valve 180 constituting the check valve 180a that allows the liquid to be supplied to the former mechanism 300. The check valve 180a is composed of the ball valve 180 and the valve seat 131 provided inside the piston guide 290, which will be described later. The former mechanism 300 receives the supply of 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. Further, the check valve 180a can stop the liquid from returning from the former mechanism 300 to the liquid agent supply unit.

The structure of the former mechanism 300 will be described in more detail with reference to FIG. FIG. 3 is an explanatory view showing a perspective cross section of the former mechanism 300 according to the first embodiment. More specifically, FIG. 3 is an oblique view of a cross section of the former former mechanism 300 when it is cut along the vertical direction so as to pass through the central axis of the former mechanism 300.

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

Specifically, in the former former mechanism 300, as shown in FIG. 3, the inner member 320 is interpolated into the outer member 310. Further, in the outer member 310 and the inner member 320, the central axes of the outer members 310 and the inner members 320 are coaxial with each other. A first mesh portion 330a is provided at the lower end of the inner member 320, and a second mesh portion 330b is provided at the upper end of the inner member 320. Further, a passage 315a into which the liquid agent and the gas flow in is provided in the lower part of the outer member 310. Further, the inner member 320 is provided with a passage 315b through which the liquid agent and the gas pass.

The liquid agent and the gas supplied to the former mechanism 300 pass from the lower side to the upper side in the passages 315a and 315b. 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 is high, the liquid agent and the gas pass through the first mesh portion 330a and the second mesh portion 330b before being sufficiently mixed, so that a foamy form is generated. The liquid agent becomes non-uniform.

However, in the foam ejector 10 according to the present embodiment, the elastic restoring force from the compressed state of the coil spring 128 (accumulation part) described later, that is, the energy stored in the coil spring 128 (accumulation part) is used by the user. 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 unit 232. Therefore, the foam discharger 10 according to the present embodiment pushes the pressing operation unit 232 even when the liquid agent and the gas are mixed by using the former mechanism 300 provided with the mesh portions 330a and 330b as described above. A liquid agent having a constant foam quality can be discharged regardless of the lowering speed.

The piston guide 290 is a cylindrical member located below the former former mechanism 300 and extending long in the vertical direction, and is fixed to the cap member 210. The liquid piston 270, which will be described later, is fixed to the cap member 210 via the piston guide 290. Further, 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 held so as to be vertically movable between the lower end of the former mechanism 300 and the valve seat portion 131. Further, in the center of the valve seat portion 131, a through hole 131a communicating with the lower part of the valve seat portion 131 is provided. That is, the ball valve 180 and the valve seat 131 form the check valve, and the check valve applies a liquid agent from below the valve seat 131 as the ball valve 180 moves up and down. Supply to.

Further, the piston guide 290 is fitted with a gas piston 250 described later in a loosely inserted state, and the gas piston 250 can move in the vertical direction relative to the piston guide 290. Further, a flange portion 233 is provided at the central portion of the piston guide 290 in the vertical direction, and an annular (doughnut-shaped) valve forming groove 134 is provided on the upper surface of the flange portion 233. Further, a tubular portion 251 of the gas piston 250, which will be described later, is fitted onto the upper portion of the piston guide 290 in an idle state. The gas discharge valve 134a is formed by the valve forming groove 134 and the lower end portion of the tubular portion 251 of the gas piston 250. More specifically, a plurality of flow path forming grooves extending in the vertical direction are provided on the outer peripheral surface of the portion of the piston guide 290 in which the tubular portion 251 is externally fitted. The gap provided between these flow path constituent grooves and the inner peripheral surface of the tubular portion 251 of the gas piston 250 is a gas flowing out from the gas pump chamber 260 (gas chamber) described later via the gas discharge valve 134a. Consists of a gas flow path 290a flowing upward (see FIG. 9).

Further, in the mounting member 200 according to the present embodiment, as shown in FIG. 1, the liquid agent supply unit and the gas supply unit are provided inside the cylinder unit 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 unit 220 has a liquid agent cylinder mechanism unit 222 provided below the gas cylinder mechanism unit 221 as the liquid agent supply unit. Further, the cylinder portion 220 has an annular connecting portion 223 that connects the gas cylinder mechanism portion 221 and the liquid agent 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 having 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 agent cylinder mechanism portion 222 to each other. When the entire mounting member 200 is viewed from above, the gas cylinder mechanism portion 221 and the liquid agent cylinder mechanism portion 222 and the cap member 210 are arranged so that their central axes are coaxial with each other.

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

The gas piston 250 is formed in a cylindrical shape, and has a tubular portion 251 that is fitted in a loosely inserted state with respect to a central portion in the vertical direction of the piston guide 290, and a tubular portion 251 that is radially outward from the tubular portion 251. It has a piston portion 252 overhanging. An outer peripheral ring portion 253 is provided on the peripheral edge portion of the piston portion 252. The outer ring portion 253 is in close contact with the inner peripheral surface of the gas cylinder mechanism portion 221 in a circular manner, 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 tubular portion 251 with respect to the piston guide 290 is a position where the lower end portion of the tubular portion 251 abuts against the valve forming groove 134 and the gas discharge valve 134a is closed. Further, as shown in FIG. 2, a plurality of suction openings 254 that penetrate the piston portion 252 in the vertical direction are provided in a portion of the piston portion 252 in the vicinity of the tubular portion 251.

Further, an annular suction valve member 155 is fitted on the lower side of the tubular portion 251 of the gas piston 250. The suction valve member 155 has a valve body which is an annular film protruding outward in the radial direction. Then, the gas suction valve 155a is formed by the valve body of the suction valve member 155 and the piston portion 252. Specifically, when the head portion 230 is raised, that is, when the gas pump chamber 260 is contracted, the valve body of the suction valve member 155 comes into close contact with the piston portion 252, so that the suction opening 254 is closed. On the other hand, when the head portion 230 is lowered, that is, when the gas pump chamber 260 is expanded, the air pressure inside the gas pump chamber 260 is lowered, so that the valve body of the suction valve member 155 is separated from the piston portion 252 and the suction opening 254 is opened. To. Then, the gas outside the foam discharger 10 is taken into the gas pump chamber 260 through the gap located between the upper end of the standing cylinder portion 217 and the inner cylinder portion 234b (see FIG. 5).

Further, inside the upper end of the container body 100, a valve 103 that is in close contact with the outer peripheral surface of the gas cylinder mechanism portion 221 in a circumferential shape is provided, and when the gas cylinder mechanism portion 221 moves up and down, gas is provided. It can slide with respect to the outer peripheral surface of the cylinder mechanism portion 221. By this valve 103, when the head portion 230 is pushed back upward by the urging force of the coil spring 128, gas from the outside can be taken into the container body 100 (see FIG. 8), while the container body 100 is tilted. At that time, the liquid agent in the container body 100 does not leak from the gap through which the gas passes (see FIG. 1).

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

The liquid agent cylinder mechanism portion 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 composed of the ball valve 180 and the valve seat portion 131 and the liquid agent suction valve 224a described later is used as a liquid agent. It is called a pump chamber 280 (liquid preparation 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 capacity and can be expanded or 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. Further, a straight portion 222a of the liquid agent cylinder mechanism portion 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, the liquid agent suction valve 224a is composed of the ball valve 224 and the diameter reduction portion 222b. Since the liquid agent suction valve 224a is a check valve, it is also referred to as a check valve 224a below. Further, the liquid agent cylinder mechanism portion 222 has a straight portion 222a having a straight shape extending in the vertical direction and a reduced diameter portion 222b connected to the lower side of the straight portion 222a and reduced in diameter downward. ..

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

The coil spring 128 (accumulation portion) 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 externally fitted to the intermediate portion (specifically, the intermediate portion in the vertical direction) of the straight portion 222a in a loosely inserted state. The coil spring 128 is supported by a spring receiving portion 124 of a support base 120, which will be described later. Further, the upper end of the coil spring 128 is fixed to a portion where the annular connecting portion 223 and the straight portion 222a of the liquid agent cylinder mechanism portion 222 are connected.

The coil spring 128 stores energy generated based on the operation of the user of the foam ejector 10. Specifically, when the pressing operation unit 232 is pressed, the cylinder unit 220 is pushed downward, so that the coil spring 128 is compressed. As a result, elastic energy generated based on the pressing operation is stored in the coil spring 128.

Further, the coil spring 128 supplies 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 by releasing the energy stored based on the operation of the user ( Details will be described later.)

The support base 120 is arranged at the center of the upper surface of the bottom 106 of the container body 100. The support 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 inside of the support base 120. The liquid agent that has flowed into 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 is opened. A spring receiving portion 124 (support 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.

As described above, the foam discharger 10 according to the present 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 pressing operation of the user. Further, the foam ejector 10 has a configuration in which the gas and the liquid agent are supplied to the former mechanism 300 by the restoring force of the coil spring 128. Therefore, the foam ejector 10 according to the present embodiment is realized by a simple structure.

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

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

Further, in this state, as shown in FIG. 2, the lower end portion of the tubular portion 251 of the gas piston 250 is in a state of being slightly raised with respect to the valve forming groove 134 on the upper surface of the flange portion 233 of the piston guide 290. The gas discharge valve 134a composed of the lower end of the tubular portion 251 and the valve forming 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 in a closed state.

Next, the operation in which the gas is supplied to the gas pump chamber 260 and the liquid agent is supplied to the liquid agent pump chamber 280 will be described with reference to FIGS. 4 to 6. FIG. 4 is an explanatory view showing a side sectional view of the foam ejector 10 in a state where the head portion 230 is being pushed down. Further, FIG. 5 is an enlarged view of the region A2 shown by the alternate long and short dash line in FIG. Further, FIG. 6 is an enlarged view of the region A3 shown by the alternate long and short dash line in FIG.

When the head portion 230 is pushed down by the user, the cylinder lid portion 226, the gas cylinder mechanism portion 221 and the liquid agent cylinder mechanism portion 222 are lowered together with the head portion 230. Along with this lowering, the coil spring 128 is compressed and the gas pump chamber 260 is expanded. At this time, the pressure inside the gas pump chamber 260 is reduced, so that the suction valve member 155 opens as shown in FIG. As a result, the gas passes through the path indicated by the solid arrow in FIG. 5, and the gas is supplied to the gas pump chamber 260.

On the other hand, when the head portion 230 is pushed down by the user, the liquid agent pump chamber 280 is also expanded. 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 floats slightly, and the check valve 224a composed of the ball valve 224 and the reduced diameter portion 222b opens. As a result, the liquid agent in the container body 100 passes through the path shown by the broken line in FIG. 6 and is supplied to the liquid agent pump chamber 280 via the check valve 224a.

At this time, the coil spring 128 is deformed in response to the pressing on the pressing operation unit 232. Specifically, the coil spring 128 contracts in response to pressing on the pressing operation unit 232. As a result, elastic energy is stored 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 by the pressing received by the pressing operation unit 232. Therefore, the user can supply the gas to the gas pump chamber 260 and store the elastic energy in the coil spring 128 with one pressing operation to the pressing operation unit 232, and can easily perform the foam discharger. 10 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 by the pressing received by the pressing operation unit 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 with one pressing operation on the pressing operation unit 232, and can easily perform the foam discharger. It becomes possible to perform 10 operations.

FIG. 7 is a diagram showing a state in which the position of the head portion 230 reaches the 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, in the liquid agent pump chamber 280, the liquid agent is stably stored.

Next, the operation of supplying the gas and the liquid agent to the former mechanism 300 will be described with reference to FIGS. 8 and 9. FIG. 8 is an explanatory view showing a side sectional view of the foam ejector 10 in a state where the cylinder portion 220 is raised according to the elastic energy of the coil spring 128. Further, FIG. 9 is an enlarged view of the region A4 shown by the alternate long and short dash line in FIG.

In the present embodiment, the coil spring 128 releases elastic energy when the pressing on the pressing operation unit 232 by the user's operation is released. At this time, the coil spring 128 raises the gas cylinder mechanism portion 221 and the liquid agent cylinder mechanism portion 222 and the like. As a result, 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 former mechanism 300.

When the liquid agent cylinder mechanism portion 222 rises according to the elastic energy of the coil spring 128, the volume of the liquid agent 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 contracts, 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 131 by the pressure of the extruded liquid, and the check valve 180a is opened. Then, the liquid agent is supplied from the liquid agent pump chamber 280 to the former mechanism 300 via the check valve 180a. Specifically, the liquid agent moves in the direction indicated by the broken line arrow in FIG. 9 and is supplied to the former mechanism 300. As described above, in the present embodiment, the liquid agent can be supplied to the former mechanism 300 by releasing the pressing on the pressing operation unit 232 by the user.

Further, the gas pump chamber 260 also contracts as the gas cylinder mechanism portion 221 rises according to the elastic energy of the coil spring 128. 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, so that the gas discharged composed of the tubular portion 251 and the valve forming groove 134. The valve 134a opens. As a result, the gas in the gas pump chamber 260 is pushed upward through the gas discharge valve 134a and the gas flow path 290a provided between the tubular portion 251 and the piston guide 290. Further, above the tubular portion 251 of the gas piston 250, a gas flow path 290b formed by a gap between the inner peripheral surface of the lower portion of the tubular portion 218 and the outer peripheral surface of the piston guide 290 is provided (FIG. 6). 9). The gas flow path 290b communicates with the gas flow path 290a provided between the tubular portion 251 and the piston guide 290. Therefore, the gas in the gas pump chamber 260 includes the gas discharge valve 134a, the gas flow path 290a provided between the tubular portion 251 and the piston guide 290, and the inner peripheral surface of the lower portion of the tubular portion 218. It is supplied to the former mechanism 300 via a gas flow path 290b provided between the piston guide 290 and the outer peripheral surface. That is, the gas in the gas pump chamber 260 passes through the path indicated by the solid arrow in FIG. 9 and is supplied to the former mechanism 300.

As described above, in the present embodiment, the gas can be supplied to the former mechanism 300 by releasing the pressing on the pressing operation unit 232 by the user. Therefore, the user can easily discharge the liquid agent having a constant 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 speed. 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 discharger 10 according to the present embodiment, the supply speed can be adjusted and made constant by appropriately designing these design conditions. More simply, by adjusting the force applied to the coil spring 128, the supply speed of the liquid agent and the gas to the former mechanism 300 can be adjusted as appropriate.

In the foam ejector 10 according to the present embodiment, the liquid agent and the gas are not supplied to the former mechanism 300 during the pressing operation by the user. As described above, in the foam ejector 10 according to the present embodiment, the liquid agent and the gas are supplied to the former mechanism 300 by releasing the elastic energy stored in the coil spring 128. The supply speed at this time is determined by the above-mentioned design conditions and the like regardless of the pressing speed. Therefore, regardless of the pressing speed at which the user presses the pressing operation unit 232, the foamy liquid agent based on the above design conditions can be discharged from the discharge port 216. Further, by appropriately adjusting the above design conditions, the user can discharge the liquid agent having a uniform foam quality.

As described above, according to the foam ejector 10 according to each embodiment of the present invention, there is provided a foam ejector 10 capable of ejecting a liquid agent having a constant foam quality regardless of the pressing speed. Can be done. Therefore, according to the foam discharger 10 according to each embodiment of the present invention, it is possible to discharge a liquid agent having a certain foam quality regardless of the user.

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

Further, in the present embodiment, the accumulating portion includes the coil spring 128. Therefore, the user can push down the coil spring 128 with a light pressure. As a result, the user can easily store elastic energy in the coil spring 128.

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

Here, the comparative example is the foam ejector 40 shown in FIG. FIG. 11 is an explanatory view showing a side cross section of the foam ejector 40 according to the comparative example.

As shown in FIG. 11, the foam discharger 40 according to the comparative example mainly includes a container body 400 filled with a liquid agent, and a foam discharge cap 500 detachably attached to the container body 400. Hereinafter, an outline of the configuration and operation of the foam ejector 40 will be described.

The container body 400 has a space in which the liquid agent can be filled, 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 404 of the container body 400 described above by a fastening method such as screwing. The foam discharge cap 500 includes a cap member 510 for mounting on the mouth and neck portion 404, a cylinder portion 520 for generating a foam-like liquid agent, and a head portion 530 for discharging the foam-like liquid agent to the outside of the foam discharger 10. Mainly has.

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 into the mouth neck 404 or the like. can do.

Further, the cylinder portion 520 according to the comparative example has a former mechanism 300 that mixes a liquid agent and a gas to change the liquid agent into a foam shape, and the container body 400, similarly to the cylinder portion 220 according to the first embodiment. It includes a liquid agent pump chamber 580 for supplying the liquid agent stored in the former to the former former mechanism 300, and a gas pump chamber 560 for taking in gas from the outside of the foam discharger 40 and supplying the gas to the former former mechanism 300.

Further, as shown in FIG. 11, the cylinder portion 520 according to the comparative example has a poppet 576 which is a rod-shaped member extending in the vertical direction. The poppet 576 penetrates the liquid piston 570 and is inserted from the inside of the piston guide 590 to the inside of the liquid agent cylinder mechanism portion 522. The poppet 576 can move along the vertical direction relative to the liquid piston 570. Further, the lower end portion of the poppet 576 constitutes a valve body portion 578. The lower surface of the valve body portion 578 can be in close contact with the valve seat portion 524, which will be described later, in a liquid-tight manner. The liquid agent suction valve is formed by the valve body portion 578 and the valve seat portion 524. Further, a spring receiving portion 574 that receives downward urging from the coil spring 572, which will be described later, is formed at the upper end of the valve body portion 578.

As shown in FIG. 11, the head portion 530 has a nozzle portion 540 provided as an object integrated with the head portion 530. Further, a discharge port 542 is provided at the tip of the nozzle portion 540. The internal space of the nozzle portion 540 communicates with the former former mechanism 300, and the liquid agent foamed by the former mechanism 300 can be discharged from the discharge port 542 to the outside of the foam discharger 10.

Further, the head portion 530 is configured to be movable up and down. Specifically, the head unit 530 has a pressing operation unit 532 that receives a pressing operation by the user's fingers or the like. When the pressing operation is performed on the pressing operation unit 532, the liquid agent in the liquid agent 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 agent pump chamber 580 is opened. The liquid agent in the solution is supplied to the former mechanism 300 via the check valve. Further, when the pressing operation is performed on the pressing operation unit 532, the gas in the gas pump chamber 560 is pressurized. At this time, the gas in the gas pump chamber 560 is a body discharge valve composed of a tubular portion 551 and a valve forming groove 434, and a gas flow path provided between the tubular portion 551 and the piston guide 590. The gas is supplied to the former mechanism 300 via a gas flow path provided between the inner peripheral surface of the lower end of the tubular portion 534 and the outer peripheral surface of the piston guide 590. Since 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, description thereof will be omitted here.

The liquid agent supplied to the former mechanism 300 becomes a foamy liquid agent and is discharged from a discharge port 542 provided at the tip of the nozzle portion 540 of the head portion 530. As described above, in the foam discharger 40 according to the comparative example, the liquid agent and the gas are supplied to the former mechanism 300 in response to the pressing operation of the pressing operation unit 532 by the user. Therefore, the faster the speed of the pressing operation by the user, the faster the speed at which the liquid agent and the gas are supplied to the former mechanism 300.

When the pressing operation on the head portion 530 by the user is released, the liquid piston 570, the piston guide 590, and the head portion 530 are integrally raised 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 integrally according to the elastic energy of the coil spring 572.

At this time, the valve body portion 578 of the poppet 576 slightly rises in the gap between the lower end of the coil spring 572 and the valve seat portion 524. As a result, as the valve body portion 578 rises, the liquid agent suction valve composed of the valve body portion 578 and the valve seat portion 524 opens at the lower end portion of the liquid agent pump chamber 580, and the liquid agent stored in the container body 400 is released. It is sucked into the liquid agent pump chamber 580 via the liquid agent suction 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 is lowered, so that the valve body of the suction valve member 455 is separated from the piston portion 552 and the suction opening 554 is opened. To. Then, the gas outside the foam discharger 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 view showing the relationship between the pressing speed of the pressing operation unit by the user and the pressing of the liquid and the gas. In FIG. 12, the relationship between the pressing speed and the pressing in the foam ejector 10 according to the present embodiment is shown by a solid line, and the relationship between the pressing speed and the pressing in the foam ejector 10 according to the comparative example is shown by a broken line. There is. As shown in FIG. 12, in the foam ejector 40 according to the comparative example, the pressing increases as the pressing speed increases. On the other hand, in the foam ejector 10 according to the present embodiment, the pressing does not change even if the pressing speed increases.

Next, the foam-like foam obtained by using the foam ejector 10 (Examples 1 to 5) according to the embodiment of the present invention and the foam ejector 40 (Comparative Examples 1 to 5) according to the above-mentioned comparative example. An example of the liquid agent will be described with reference to FIG. The pressing speed of the pressing operation unit in Example 1 and Comparative Example 1 is 10 mm / sec, the pressing speed of the pressing operation unit in Example 2 and Comparative Example 2 is 30 mm / sec, and the pressing operation in Example 3 and Comparative Example 3. The pressing speed of the unit was 50 mm / sec, the pressing speed of the pressing operation unit in Examples 4 and 4 was 70 mm / sec, and the pressing speed of the pressing operation unit in Examples 5 and 5 was 90 mm / sec.

Further, FIG. 10 shows captured images of the foamy liquid agent discharged from the foam ejector of Examples 1 to 5 and Comparative Examples 1 to 5 described above into the sample container. As can be seen from FIG. 10, a non-uniform foamy liquid agent containing large bubbles was discharged from the foam ejector 40 according to Comparative Examples 2 to 5. That is, there were variations in foam quality in the discharged liquid. Specifically, in Comparative Examples 2 to 5, bubbles having varying sizes (crab bubbles) were generated, and the appearance and quality of the bubbles were significantly deteriorated. It is considered that this is because the supply speed of the liquid agent and the gas increases as the pressing speed increases, and the liquid agent and the gas do not mix uniformly.

On the other hand, from the foam ejector 10 according to Examples 1 to 5, a fine foam liquid agent having improved uniformity was discharged as compared with the foam liquid agent according to Comparative Examples 2 to 5. In particular, from the foam discharger 10 according to Examples 1 to 5, a liquid agent having a constant foam quality was discharged even when the pressing speed of the pressing operation unit 232 was increased.

As described above, it was found that the foam ejector 10 according to the present embodiment can eject a liquid agent having a constant foam quality regardless of the pressing speed.

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

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

The 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 unit 832. When the pressing operation unit 832 is pressed by the user's operation, the head unit 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 unit 832). In the foam discharger 70 according to the second embodiment, the foamy liquid agent is discharged upward from these eight discharge ports 833. Although eight discharge ports 833 are shown in FIG. 13, the number of discharge ports formed in the foam discharger 70 may be 7 or less, or 9 or more. ..

As shown in FIG. 14, the foam ejector 70 according to the second embodiment mainly includes a head portion 830, a mounting member 810, a cylinder portion 220, and a container main body 700. 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, description thereof will be omitted here.

Next, as shown in FIG. 14, the first cap 831 is fixed to the second cap 835 by being fitted to the upper part of 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 837a is externally fitted to the mounting member 810.

Further, 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 included in the cylinder portion 220. When the pressing operation unit 832 of the head unit 830 is pressed by the user, the head unit 830 is lowered. At this time, since the cylinder lid 826 is fixed to the cylinder 220, the inside of the gas pump chamber 260 and the liquid agent pump chamber 280 and the inside expand, the gas pump chamber 260 is filled with gas, and the liquid agent pump chamber 280 is filled with liquid agent. Is supplied.

Further, the third cylindrical portion 837c fits into the groove provided in the mounting portion 812 of the mounting member 810. Since the lower end of the third cylindrical portion 837c comes into contact with the lower end of the groove, the operating range of the head portion 830 in the vertical direction is limited.

A packing 819 is fitted on the upper end of the cylinder portion 220. The internal space of the container body 700 can be sealed while the mounting portion 812 is mounted on the container body 700 by screwing or the like.

Next, the operation of the foam ejector 70 according to the second embodiment will be described. The operation substantially the same as the operation of the foam ejector 10 according to the above embodiment will be described by omitting it as appropriate.

When the pressing operation unit 832 is pressed by the operation of the user, 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 applies pressure to the pressing operation unit 832 by, for example, pressing the palm against the pressing operation unit 832.

When, for example, the user releases the palm pressed against the pressing operation unit 832 from the pressing operation unit 832 and releases the pressing on the pressing operation unit 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 speed of pressing by the user. The liquid agent supplied to the former mechanism 300 becomes foamy and is discharged from the upper parts of the eight discharge ports 833.

At this time, since the user's palm is separated from the pressing operation unit 832, it is possible to prevent the foamy liquid agent from adhering to the palm. The discharged foamy liquid agent adheres to the upper surface of the pressing operation unit 832. The user can pick up the liquid agent and use the liquid agent.

As described above, in the foam discharger 70 according to the second embodiment, the foamy liquid agent is discharged while the user releases his / her hand from the pressing operation unit 832. Further, the user can scoop up the discharged liquid agent and use it. Therefore, even when one hand is occupied, the user can discharge the foamy liquid from the foam discharger 70 with the other hand and use the liquid. Further, since the discharge port 833 faces upward, the user can enjoy watching how the foamy liquid agent is discharged and the foamy liquid agent is formed into a shape corresponding to the shape of the discharge port 833. it can.

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

The structure and operation of the foam ejector 10 described as described above are merely examples, and a known structure may be applied to the above-described embodiment as long as the gist of the present invention is not deviated.

Further, the parts constituting the foam ejector 10 according to each embodiment of the present invention described above are not particularly limited, but can be formed from, for example, various resin materials. Further, the foam discharger 10 can be manufactured by various known molding processes and the like.

For example, in the above embodiment, the accumulating portion is an elastic coil spring 128, but the present invention is not limited to this example. The accumulating portion may be an elastic body other than the coil spring 128, or may be formed of an elastic body other than the elastic body.

Further, in the above embodiment, the foam ejector having the mesh portion in the former mechanism is used, but it is also effective in the former mechanism having no mesh portion.

10, 70 Foam ejector 100 Container body 102 Body part 104 Mouth neck part 106 Bottom part 120 Support base 122 Cylindrical part 124 Spring receiving part 126 Conical part 128 Coil spring (accumulation part)
131 Valve seat 131a Through hole 134 Valve configuration groove 155 Suction valve member 180 Ball valve 200 Mounting member 210 Cap member 212 Mounting part 214 Nozzle part 216, 833 Discharge port 217 Standing cylinder part 218 Cylindrical part 220 Cylinder part 221 Gas cylinder mechanism Part 222 Liquid agent Cylinder mechanism part 222a Straight part 222b Reduced diameter part 223 Circular connection 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 part 234b Inner cylinder part 250 Gas piston 251 Cylindrical part 252 Piston part 253 Outer ring part 254 Suction opening 260 Gas pump chamber (gas chamber)
270 Liquid piston 280 Liquid pump room (liquid room)
290 Piston guide 290a, 290b Gas flow path 300 Former mechanism 310 Outer member 315a Passage 315b Passage 320 Inner member 330a First mesh part 330b Second mesh part

Claims (12)

A liquid agent chamber for storing the liquid agent, a gas chamber for storing the gas, a mixing portion for mixing the liquid agent and the gas to form a foam, and storing energy generated based on the operation of the user. A foam ejector provided with a storage unit
The storage unit is a foam discharger that supplies the liquid agent stored in the liquid agent chamber and the gas stored in the gas chamber to the mixing unit by releasing the stored energy. The foam discharger according to claim 1, wherein the storage unit supplies the liquid agent and the gas to the mixing unit at a constant supply rate. The foam ejector according to claim 1 or 2, wherein the storage unit includes an elastic body, and the energy is stored in the elastic body. The foam ejector according to claim 3, wherein the elastic body includes a spring. The foam discharger according to any one of claims 1 to 4, further comprising a pressing operation unit that receives pressure by the user's operation. The foam discharger according to claim 5, 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. 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 by the pressing received by the pressing operation unit, claim 5 or 6. The foam ejector described in. The inside of the liquid agent chamber has a variable volume, and the liquid agent is supplied to the liquid agent chamber by expanding the inside of the liquid agent chamber by the pressing received by the pressing operation unit. The foam ejector according to any one of the above. The foam ejector according to any one of claims 5 to 8, wherein the storage unit releases the energy when the pressure on the pressing operation unit by the operation of the user is released. The foam discharger according to any one of claims 5 to 9, wherein the pressing operation unit has a discharge port for discharging the foamed liquid agent. Claims 1 to 10 further include a support portion that supports one end of the storage portion, and the end portion of the storage portion on the opposite side of the one end is fixed to at least one of the gas chamber and the liquid agent chamber. The foam ejector according to any one of the above items. The foam discharger according to any one of claims 1 to 11, wherein the mixing portion has a mesh portion through which the liquid agent and the gas pass.