JP7114179B2 - foam dispenser - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a foam ejector that ejects a mixture of liquid and air in the form of foam.

In a container filled with shampoo, body soap, hand soap, face wash, etc., the content liquid in the container can be directly foamed and discharged from the viewpoint of omitting the foaming operation of the content liquid and aiming for easy use. Those equipped with a foam dispenser are often used.

Such a dispenser is a single unit in which a piston for sucking, pressurizing, and pumping the content liquid and an air piston for sucking, pressurizing, and pumping air are concentrically arranged in a base cap held at the mouth of the container. cylinder is installed. Then, by pressing the nozzle head and synchronously driving the pistons in each pump, the content liquid and air are respectively sucked into each cylinder, pressurized and pumped, and the content liquid is pumped in the confluence space on the outlet side of the pump. By passing through a foaming member such as a mesh while mixing the liquid with air, the content liquid is foamed and discharged (see, for example, Patent Document 1).

JP 2011-148535 A

By the way, in such a foam dispenser, the content liquid or foam pumped from the pump is configured to flow in the closed space up to the ejection port at the tip of the nozzle head. Therefore, since a certain amount of resin is used to form the closed space, there is a limit to reducing the amount of resin required to form the foam dispenser.

An object of the present disclosure is to solve such problems, and an object thereof is to provide a new foam dispenser capable of reducing the amount of resin required to form the nozzle head. That's what it is.

The foam dispenser of the present disclosure comprises:
a base cap held at the mouth of the container; two pumps suspended from the mouth of the container by the base cap and held by the base cap for sucking, pressurizing, and pumping the content liquid and air, respectively; A foam ejector comprising a nozzle head for mixing and foaming the pumped content liquid and air and ejecting the mixture to the outside,
The nozzle head is
a head body having an internal passage for guiding the liquid content and air from the two pumps, and a discharge port communicating with the internal passage for discharging bubbles containing the liquid content and air in a substantially horizontal direction;
a foaming member disposed in the internal passage for mixing and foaming the content liquid and air;
a foam receiver that receives the foam discharged from the discharge port and drops it downward;
a connecting portion that connects the foam receiving portion to the head body;
The connecting portion is characterized by having an opening that exposes the foam passage area in a direction perpendicular to the foam discharge direction.

Further, in the foam dispenser of the present disclosure, in the configuration described above, it is preferable that the foam receiver has a foam receiving surface that slopes downward toward the direction of foam ejection when viewed from the side.

Further, in the foam dispenser of the present disclosure, in the configuration described above, it is preferable that the foam receiver has a gutter-shaped foam receiving surface that is recessed in the foam ejection direction from the left-right direction toward the center.

Further, in the foam dispenser of the present disclosure, in the configuration described above, the connecting portion has a roof portion that covers the foam passage area from above, and has the openings in the horizontal direction and the downward direction of the foam passage area. is preferred.

Further, in the foam dispenser of the present disclosure, in the configuration described above, the connecting portion has a side wall portion that covers the foam passage area from the left and right directions, and has the openings above and below the bubble passage area. is preferred.

Further, in the foam dispenser of the present disclosure, in the configuration described above, the discharge port communicates with the internal passage for upwardly guiding the content liquid and air from the two pumps, and has a cylindrical shape that slopes downward toward the front. is preferably formed at the front end of the nozzle portion.

According to the present disclosure, it is possible to provide a new foam dispenser capable of reducing the amount of resin required to form the nozzle head.

Fig. 2 is a right side cross-sectional view showing the foam dispenser according to the first embodiment of the present disclosure attached to the mouth of the container; (a) is a plan view of the foam dispenser according to the first embodiment of the present disclosure, and (b) is a front partial cross-sectional view taken along line AA of (a). FIG. 2 is an enlarged partial cross-sectional view of a nozzle head portion in FIG. 1; Fig. 10 is a right side partial cross-sectional view of a foam dispenser according to a second embodiment of the present disclosure; (a) is a plan view of a foam dispenser according to a second embodiment of the present disclosure, and (b) is a front partial cross-sectional view taken along line BB of (a). FIG. 5 is an enlarged partial cross-sectional view of the nozzle head portion in FIG. 4;

Hereinafter, a first embodiment of the foam dispenser 100 of the present disclosure will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing a foam dispenser 100 according to this embodiment attached to the mouth of a container C. As shown in FIG. In the specification, claims, abstract, and drawings of the present application, the vertical direction is based on the state in which the foam dispenser 100 is attached to the container C and erected on a horizontal plane. Upward and downward mean downward in FIG. Further, the front is the direction in which bubbles are discharged from the discharge port 17a of the nozzle head 14 in FIG. The left-right direction (lateral direction) is the left-right direction when the foam dispenser 100 is viewed from the foam receiver 15 side (left side in FIG. 1), and is perpendicular to the paper surface of FIG.

In FIG. 1, reference numeral 1 denotes a base cap held at the mouth of the container C. As shown in FIG. The base cap 1 has an outer wall 1b that hangs down from the edge of the top wall 1a, and is detachably held by screwing a threaded portion provided inside the outer wall 1b into a threaded portion provided at the mouth of the container C. be done. In addition, in order to hold the base cap 1 in the container C, a known configuration such as an undercut may be used. In addition, a hollow neck portion 1c is provided in the center of the top wall 1a so as to stand upward. The hollow neck portion 1c is provided with a rib 1e extending vertically on its inner peripheral surface.

Reference numerals 2 and 3 denote two pumps suspended from the mouth of the container C by the base cap 1 and individually sucking, pressurizing, and pumping the content liquid and air. The content liquid pump 2 and the air pump 3 are a single cylinder 4 in which a liquid cylinder 4a and an air cylinder 4b integrally connected to the upper part of the liquid cylinder 4a are coaxially arranged in series. formed by A flange 4f extending radially outward is provided above the cylinder 4, and when the container C is suspended and held, a packing is provided on the lower surface side of the flange 4f, and the packing is provided between the mouth of the container C and the flange 4f. The packing is sandwiched between them.

The content liquid pump 2 includes a liquid cylinder 4a and a liquid piston 5 which abuts against the inner peripheral surface of the liquid cylinder 4a and is slidable along the axis thereof. Here, the content liquid pump 2 has a suction port 4c into which the content liquid in the container C flows in at the bottom of the liquid cylinder 4a. A fitting cylinder 4d for fitting and holding a suction pipe P extending toward the bottom of the container C is provided at the edge of the suction port 4c. Inside the liquid cylinder 4a is disposed a liquid piston 5 which is in contact with the inner peripheral surface of the liquid cylinder 4a and slidable along its axis. A poppet 6 is arranged in the internal passage t1. The poppet 6 has a valve portion 6a at its lower end for opening and closing the suction port 4c, and has a valve portion 6b at its upper end for opening and closing the outlet of the internal passage t1. A hollow stem 7 is arranged outside the liquid piston 5 . The hollow stem 7 includes a lower cylindrical wall 7a surrounding the liquid piston 5, an intermediate flange 7b integrally connected to the upper portion of the lower cylindrical wall 7a, and a through hole of the base cap 1 extending from the intermediate flange 7b. and an upper tubular wall 7c protruding from 1f. A spring 8 is arranged between the poppet 6 and the liquid piston 5 . Thereby, the liquid piston 5 and the hollow stem 7 are slidably and elastically supported.

As shown in FIG. 1, the intermediate flange 7b described above protrudes radially outward from the outer peripheral surface of the upper tubular wall 7c. An upper portion of the upper cylindrical wall 7c has an inward flange 7g extending radially inward. A ball valve B having the inward flange 7g as a valve seat is provided above the inward flange 7g.

The air pump 3, as shown in FIG. 1, includes an air cylinder 4b and an air piston 10 that abuts against the inner peripheral surface of the air cylinder 4b and is slidable along the axis thereof. A cylindrical guide 10a that surrounds the hollow stem 7 and protrudes from the through hole 1f of the base cap 1 in the initial posture is provided radially inside the air piston 10. As shown in FIG. and the inner side of the tubular guide 10a forms a first air passage A1 through which air passes. In addition, in the initial posture, the lower end of the tubular guide 10a is configured to abut on the intermediate flange 7b. Further, as will be described later, the hollow stem 7 is slightly slidable with respect to the air piston 10, and the lower end of the cylindrical guide 10a contacts and separates from the intermediate flange 7b, thereby opening the first air passage A1. It functions as a valve that opens and closes the A partition wall 10c extending radially outward from the cylindrical guide 10a to form a space for pressurizing air between itself and the air cylinder 4b has an opening 10d for introducing air into the air cylinder 4b. is provided. Air is allowed to be introduced from the outside through the opening 10d, and the check valve 11 prevents air from flowing out of the air cylinder 4b.

Above the hollow stem 7, there is provided a nozzle head 14 for foaming the mixed content liquid and air by means of a mesh ring 12 (foaming member) provided inside thereof and for discharging the mixture to the outside through an internal passage 18a. .

The nozzle head 14 of this embodiment, as shown in FIG. A head body 18 having a discharge port 17a for discharging bubbles containing the content liquid and air in a substantially horizontal direction, a mesh ring 12 (foaming member) for mixing and foaming the content liquid and air, and a jet holding the mesh ring 12. It has a ring 13, a foam receiving portion 15 for receiving and dropping foam discharged from the discharge port 17a, and a roof portion 16 (connecting portion) for connecting the foam receiving portion 15 to the head main body 18. A head body 18 of the nozzle head 14 holds the mesh ring 12 via the jet ring 13 .

The mesh ring 12 of this embodiment has a mesh attached to one end of a ring-shaped main body. Also, in this embodiment, a total of two mesh rings 12 are attached to the jet ring 13 so that each mesh faces outward (the side on which no mesh is provided serves as a seam).

The jet ring 13 includes an upper tubular portion 13a that surrounds and holds the mesh ring 12, an intermediate tubular portion 13c that is integrally connected to the upper tubular portion 13a and recessed radially inward to support the foam member from below, A ring opening 13j provided at the lower end of the intermediate cylindrical portion 13c for allowing the mixture of liquid and air to pass therethrough, and a valve stopper 13h provided immediately below the ring opening 13j for restricting the upward displacement of the ball valve B. have. The upper cylindrical portion 13a of the jet ring 13 is fitted and fixed to the inner peripheral surface of the inner cylindrical wall 18d that hangs down from the top wall 18b of the head body 18. As shown in FIG. At this time, the upper tubular wall 7c of the hollow stem 7 abuts against the outer surface of the intermediate tubular portion 13c to support the jet ring 13 from below.

A plurality of vertical ribs 18e are provided on the inner peripheral surface of the inner tubular wall 18d to contact the outer peripheral surface of the upper tubular wall 7c. The vertical rib 18e extends vertically along the axis of the inner cylindrical wall 18d. That is, between the vertical ribs 13e, the first ventilation passage A1 extends vertically along the axis of the inner cylindrical wall 18d and extends radially inward along the upper end of the upper cylindrical wall 7c. A facing gap (second air passage A2) is formed. As shown in FIG. 1, in the initial posture, a gap of dimension L is formed in the vertical direction between the lower end of the inner cylindrical wall 18d and the step formed on the cylindrical guide 10a of the air piston 10. ing.

The head body 18 includes an inner cylindrical wall 18d that holds the jet ring 13 and a head ring 18c that surrounds the inner cylindrical wall 18d. Inside the inner cylindrical wall 18d, an internal passage 18a is formed for guiding the foam generated by mixing the content liquid and air in the mesh ring 12 to the discharge port 17a. Further, near the upper end of the internal passage 18a, a cylindrical nozzle portion 17 is provided that communicates with the internal passage 18a and extends forward in a substantially horizontal direction. A discharge port 17a is formed at the front end of the nozzle portion 17 to discharge the foam pumped through the internal passage 18a. Note that the discharge port 17a is not necessarily provided with the cylindrical nozzle portion 17 extending substantially horizontally as in the present embodiment, as long as the foam pumped through the internal passage 18a can be discharged in a substantially horizontal direction. may For example, the nozzle portion 17 may be configured as a cylindrical portion that slopes slightly downward toward the front, thereby canceling the upward kinetic energy of bubbles guided upward through the internal passage 18a, The foam can be more accurately ejected in the substantially horizontal direction from the ejection port 17a. Especially when the horizontal length of the nozzle portion 17 is extremely short compared to the horizontal distance between the internal passage 18a and the bubble receiving portion 15, such a mode is considered to be effective. Alternatively, the discharge port 17a may be formed directly on the front wall of the inner cylindrical wall 18d without providing the cylindrical nozzle portion 17. As shown in FIG.

The foam discharged from the discharge port 17a in a substantially horizontal direction passes directly under the roof portion 16 that constitutes the connecting portion, and is received by the foam receiving portion 15 arranged in front of the discharge port 17a via the roof portion 16. be done. As shown in FIG. 1, the foam receiving surface 15a of the foam receiving portion 15 is inclined downward toward the front (to the left in FIG. 1), which is the direction in which foam is discharged, in a side view. It is configured to have curved surfaces that connect more smoothly to the surfaces. With such a configuration, the foam discharged from the discharge port 17a is directed substantially downward along the foam receiving surface 15a. Therefore, the foam ejected from the ejection port 17a can drop downward with a predetermined momentum. In addition, in the example of FIG. 1, the roof portion 16 is configured to be inclined upward toward the front.

Further, as shown in FIG. 2(a), the foam receiving portion 15 has a gutter-shaped foam receiving surface 15a that is recessed in the foam discharge direction from the left and right direction (the vertical direction in FIG. 2(a)) toward the center. is configured as As a result, even if the foam discharged from the discharge port 17a spreads radially in the left-right direction, the foam-receiving surface 15a formed in the shape of a gutter can collect the foam spread in the left-right direction in the center.

In this embodiment, the foam receiving portion 15 is connected to the head body 18 by a roof portion 16 (connecting portion) that covers the foam passage area from above. The bubble passage area of the roof portion 16 communicates with the outside through openings 16a (see FIGS. 1 and 2B) formed in the left-right direction and downward direction, and the bubbles pass through the openings 16a. A region is exposed in a direction perpendicular to the foam ejection direction (see FIG. 3). Therefore, unlike the conventional foam dispenser, it is not necessary to form the nozzle, which guides the foam in a substantially horizontal direction to a position where the user can easily receive the foam, as a closed space. The amount of resin required for formation can be reduced.

Further, in this embodiment, as shown in FIG. 3, the foam discharged from the discharge port 17a passes through the air in a substantially horizontal direction and reaches the foam receiver 15. As shown in FIG. Therefore, it is possible to prevent foam from adhering to the inner surface of the nozzle, which is formed as a cylindrical closed space, as in the conventional foam dispenser. Therefore, the amount of foam remaining in the nozzle after using the contents can be suppressed.

In this embodiment, the discharge port 17a and the foam receiving portion 15 are connected by a roof portion 16 that covers the foam passage area from above. Therefore, even if the foam from the discharge port 17a is discharged with a slightly upward inclination toward the front due to the inclination of the roof portion 16 or the upward kinetic energy of the foam guided upward by the internal passage 18a. Even if there is, the foam can be guided along the roof portion 16 to the foam receiving portion 15.例文帳に追加As a result, it is possible to prevent the bubbles from blowing upward against the user's intention. Further, as shown in FIG. 2(b), the roof portion 16 is also configured to have a gutter-shaped surface that is recessed upward from the left and right toward the center, so that the foam from the discharge port 17a is directed forward. Even if the foam is discharged with a slight upward inclination, the discharged foam spreading radially in the left-right direction can be collected in the center of the roof portion 16 and guided to the foam receiving surface 15a.

A stopper may be provided between the top wall 1a of the base cap 1 and the head ring 18c to prevent the nozzle head 14 from being pushed down unintentionally. The stopper can be, for example, substantially C-shaped in plan view, and can be detachably attached from the side of the hollow neck portion 1c.

In the foam dispenser 100 configured as described above, when the top wall 18b of the nozzle head 14 is pushed downward, the hollow stem 7 is pushed through the jet ring 13 by the dimension L shown in FIG. slide slightly. In other words, the air piston 10 starts to slide after the hollow stem 7 slides by the dimension L. As a result, the lower end of the cylindrical guide 10a separates from the intermediate flange 7b, and the inside of the air piston 10 communicates with the first air passage A1. When the nozzle head 14 continues to be pushed, the air inside the air piston 10 is pressurized by the movement of the air piston 10, and the air passes through the first air passage A1 and the second air passage A2, and flows into the hollow air. It goes to the space (confluence space G) formed by the stem 7 and the jet ring 13 .

On the other hand, in the liquid cylinder 4a, the valve portion 6a of the poppet 6 abuts against the inner surface of the liquid cylinder 4a to close the suction port 4c, pressurize the inside of the liquid cylinder 4a, and push the nozzle head 14 further. The valve portion 6b of the poppet 6 separates from the outlet of the internal passage t1 in the liquid piston 5, and the content liquid existing in the internal passage t1 flows inside the upper cylindrical wall 7c of the hollow stem 7 (internal passage t2). flow. Since the ball valve B is pushed up by pressurization inside the liquid cylinder 4a and the valve is opened, the content liquid flows into the merging space G together with the air passing through the second air passage A2.

The content liquid, which has become a gas-liquid mixture in the merging space G, passes through the mesh ring 12, becomes foamy, passes through the internal passage 18a of the nozzle head 14, further passes through the nozzle portion 17, and exits the discharge port 17a. Dispensed horizontally.

The foam discharged from the discharge port 17a moves forward in a substantially horizontal direction as shown in FIG. 3 and is received by the foam receiving surface 15a. Since the foam receiving surface 15a is configured to have a curved surface that slopes downward toward the foam ejection direction, the foam ejected from the ejection port 17a travels substantially downward along the foam receiving surface 15a. oriented as Therefore, the foam reaching the foam receiving surface 15a does not leak upward, and the foam can be guided downward by the effect of the foam's own weight. Further, the foam ejected from the ejection port 17a can be caused to drop downward with a predetermined momentum by utilizing the kinetic energy at the time of ejection in addition to its own weight.

After the nozzle head 14 has been completely pushed out, when the pushing force is removed, the repulsive force of the spring 8 causes the liquid piston 5 and the hollow stem 7 to return to their initial positions, and the ball valve B causes the pressure in the internal passage t2 to drop. It is seated on the inward flange 7g by its own weight.

In this return process, the pressure inside the liquid cylinder 4a becomes negative due to the upward sliding of the liquid piston 5, and the poppet 6 rises slightly to open the valve portion 6a. By opening the valve portion 6a, the suction port 4c of the liquid cylinder 4a is opened, and the content liquid in the container C is sucked into the liquid cylinder 4a through the suction port 4c.

On the other hand, in the air cylinder 4b, the air piston 10 begins to slide upward with a delay of the dimension L, and as shown in FIG. They are in a closed state in contact with each other. Therefore, when the air piston 10 slides upward, the inside of the air piston 10 becomes negative pressure, and the air that has flowed from the inside of the hollow neck portion 1c of the base cap 1 flows into the air piston 10 through the opening 10d. do. A horizontal hole 4e is provided in the upper part of the air cylinder 4b, as shown in FIG. influx. As a result, even if the contents are discharged from the container C, the inside of the container C will not remain in a negative pressure state.

By repeating the pushing of the nozzle head 14 and the return to the initial posture in this manner, the content liquid in the container C can be foamed and continuously discharged.

As described above, the present embodiment includes the base cap 1 held at the mouth of the container C, and the base cap 1 hanging down from the mouth of the container C to suck and pressurize the content liquid and air, respectively. , two pumps 2 and 3 for pressure-feeding, and a nozzle head 14 for mixing and foaming the content liquid and air pressure-fed from the two pumps 2 and 3 and discharging it to the outside. The head 14 has an internal passage 18a that guides the liquid and air from the two pumps 2 and 3, and a discharge port 17a that communicates with the internal passage 18a and discharges bubbles containing the liquid and air in a substantially horizontal direction. A main body 18, a foaming member (mesh ring 12) disposed in the internal passage 18a for mixing and foaming the content liquid and air, and a foam receiver 15 for receiving the foam discharged from the discharge port 17a and dropping it downward. , and a connecting portion for connecting the foam receiving portion 15 to the head main body 18, and the connecting portion has an opening 16a for exposing the foam passage area in the direction perpendicular to the foam discharge direction. By adopting such a configuration, unlike the conventional foam dispenser, it is not necessary to form the nozzle, which guides the foam in a substantially horizontal direction to a position where the user can easily receive the foam, as a closed space. The amount of resin required for forming the nozzle head 14 can be reduced by only this amount. In addition, as shown in FIG. 3, the foam discharged from the discharge port 17a passes through the air and reaches the foam receiver 15. Therefore, it is formed as a cylindrical closed space like the conventional foam discharger. Adhesion of bubbles to the inside of the nozzle is suppressed. Therefore, the amount of foam remaining in the nozzle after using the contents can be suppressed.

In the present embodiment, the foam receiving portion 15 is configured to have a foam receiving surface 15a that is inclined downward toward the direction of foam discharge when viewed from the side. By adopting such a configuration, the foam discharged from the discharge port 17a is directed downward along the foam receiving surface 15a. Therefore, the foam reaching the foam receiving surface 15a does not leak upward, and the foam can be guided downward by the effect of the foam's own weight. In addition to the self-weight of the foam, the kinetic energy of the foam discharged from the discharge port 17a can be used to drop the foam downward with a predetermined force.

Further, in this embodiment, the foam receiving portion 15 is configured to have a gutter-shaped foam receiving surface 15a that is recessed in the foam discharge direction from the left and right toward the center. By adopting such a configuration, even if the foam discharged from the discharge port 17a spreads radially in the left-right direction, the foam receiving surface 15a formed in the shape of a gutter can collect the foam spread in the left-right direction in the center. . Therefore, the ejected bubbles can be collected in an appropriate size and used.

In this embodiment, the connecting portion has a roof portion 16 that covers the bubble passage area from above, and is configured to have openings 16a in the lateral direction and downward direction of the bubble passage area. By adopting such a configuration, the foam from the discharge port 17a is inclined slightly upward toward the front due to the inclination of the roof portion 16 and the upward kinetic energy of the foam guided upward by the internal passage 18a. Even when the foam is discharged, the foam can be guided along the roof portion 16 to the foam receiving portion 15, so that it is possible to suppress the upward ejection of the foam against the user's intention. can.

Further, in this embodiment, the discharge port 17a communicates with an internal passage 18a that guides the liquid and air from the two pumps 2 and 3 upward, and the cylindrical nozzle portion 17 that slopes downward toward the front. It was configured to be formed at the front end. By adopting such a configuration, the upward kinetic energy of the foam guided upward by the internal passage 18a can be canceled, and the foam can be more accurately discharged from the discharge port 17a in a substantially horizontal direction.

Next, a foam dispenser 200 according to a second embodiment of the present disclosure will be described in detail using FIGS. 4 to 6. FIG. In addition, the present embodiment has a configuration similar to that of the first embodiment, except that the configuration of the connecting portion is different from that of the first embodiment. Therefore, the differences from the first embodiment will be mainly described here. Also, parts corresponding to parts of the first embodiment are described using the same reference numerals.

The foam discharged from the discharge port 17a in a substantially horizontal direction passes through the area between the side wall portions 116 forming the connecting portion, and reaches the foam receiving portion 15 arranged in front of the discharge port 17a via the side wall portion 116. accepted by As shown in FIG. 4, the foam receiving surface 15a of the foam receiving portion 15 has a curved surface that inclines downward toward the front (to the left in FIG. 4), which is the direction in which foam is discharged, in a side view. It is configured. With such a configuration, the foam discharged from the discharge port 17a is directed substantially downward along the foam receiving surface 15a. Therefore, the foam ejected from the ejection port 17a can drop downward with a predetermined momentum.

Further, as shown in FIG. 5(a), the foam receiving portion 15 has a gutter-shaped foam receiving surface 15a that is recessed in the foam ejection direction from the left and right direction (the vertical direction in FIG. 5(a)) toward the center. is configured as As a result, even if the foam discharged from the discharge port 17a spreads radially in the left-right direction, the foam-receiving surface 15a formed in the shape of a gutter can collect the foam spread in the left-right direction in the center.

In the present embodiment, the bubble receiving portion 15 is connected to the head body 18 by side wall portions 116 (connecting portions) that cover the bubble passage area in the left-right direction. The bubble passing region in the side wall portion 116 communicates with the outside through an opening 116a (see FIGS. 4 and 5(a) and 5(b)) formed in the vertical direction, and the bubble passes through the opening 116a. The passage area is exposed in a direction perpendicular to the foam ejection direction. Therefore, unlike the conventional foam dispenser, it is not necessary to form the nozzle, which guides the foam in a substantially horizontal direction to a position where the user can easily receive the foam, as a closed space. The amount of resin required for formation can be reduced.

Further, in this embodiment, as shown in FIG. 6, the foam discharged from the discharge port 17a passes through the air in a substantially horizontal direction and reaches the foam receiver 15. As shown in FIG. Therefore, it is possible to prevent foam from adhering to the inside of the nozzle, which is formed as a cylindrical closed space, as in the conventional foam dispenser. Therefore, the amount of foam remaining in the nozzle after using the contents can be suppressed.

As described above, in the present embodiment, the connecting portion has the side walls 116 that cover the bubble passage area from the left and right, and the openings 116a above and below the bubble passage area. did. By adopting such a configuration, the nozzle head 14 of the foam dispenser 200 can be easily formed using a mold that opens vertically, for example.

Although the present disclosure has been described with reference to figures and examples, it should be noted that various variations and modifications will be readily apparent to those skilled in the art based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined into one or divided. It should be understood that the scope of the present invention includes these.

For example, the foam receiving surface 15a is configured to have a curved surface that slopes downward toward the front when viewed from the side, but is not limited to this aspect. The foam receiving surface 15a only needs to be able to receive and drop the foam discharged from the discharge port 17a. , may extend substantially vertically.

In addition, although the connection portion is configured as the roof portion 16 (first embodiment) or the side wall portion 116 (second embodiment), it is not limited to this aspect, and the foam passage area is formed in any direction perpendicular to the foam discharge direction. Any shape that can be exposed in either direction can be employed.

According to the present disclosure, it is possible to provide new foam dispensers 100 and 200 that can reduce the amount of resin required to form the nozzle head 14 .

Reference Signs List 1 base cap 1a top wall 1b outer wall 1c hollow neck 1e rib 1f through hole 2 content liquid pump 3 air pump 4 cylinder 4a liquid cylinder 4b air cylinder 4c suction port 4d fitting tube 4e horizontal hole 4f flange 5 liquid Piston 6 poppet 6a valve portion 6b valve portion 7 hollow stem 7a lower cylindrical wall 7b intermediate flange 7c upper cylindrical wall 7g inward flange 8 spring 10 air piston 10a cylindrical guide 10c partition wall 10d opening 11 check valve 12 mesh ring (Foam member)
13 jet ring 13a upper tubular portion 13c intermediate tubular portion 13e vertical rib 13h valve stopper 13j ring opening 14 nozzle head 15 foam receiving portion 15a foam receiving surface 16 roof portion (connecting portion)
16a Opening 17 Nozzle 17a Discharge port 18 Head body 18a Internal passage 18b Ceiling wall 18c Head ring 18d Inner cylindrical wall 18e Vertical rib 100 Foam dispenser 116 Side wall (connection)
116a opening 200 foam dispenser A1 first air passage A2 second air passage B ball valve C container G confluence space L dimension P suction pipe t1 internal passage t2 internal passage

Claims (6)

a base cap held at the mouth of the container; two pumps suspended from the mouth of the container by the base cap and held by the base cap for sucking, pressurizing, and pumping the content liquid and air, respectively; A foam ejector comprising a nozzle head for mixing and foaming the pumped content liquid and air and ejecting the mixture to the outside,
The nozzle head is
a head body having an internal passage for guiding the liquid content and air from the two pumps, and a discharge port communicating with the internal passage for discharging bubbles containing the liquid content and air in a substantially horizontal direction;
a foaming member disposed in the internal passage for mixing and foaming the content liquid and air;
a foam receiver that receives the foam discharged from the discharge port and drops it downward;
a connecting portion that connects the foam receiving portion to the head body;
The foam dispenser, wherein the connecting part has an opening that exposes the foam passage area in a direction perpendicular to the direction of foam ejection. 2. The foam dispenser according to claim 1, wherein said foam receiver has a foam receiving surface that slopes downward toward the direction of foam ejection when viewed from the side. 3. The foam dispenser according to claim 1, wherein said foam receiver has a gutter-shaped foam receiving surface recessed in the foam ejection direction from the left and right toward the center. 4. The connection part according to any one of claims 1 to 3, wherein the connecting part has a roof covering the bubble passage area from above, and has the openings in the horizontal direction and the downward direction of the bubble passage area. foam dispenser. 4. The connection part according to any one of claims 1 to 3, wherein the connecting part has a side wall part that covers the bubble passage area from the left and right, and has the openings in the upper direction and the lower direction of the bubble passage area. foam dispenser. The discharge port is formed at a front end portion of a cylindrical nozzle portion that is downwardly inclined toward the front and communicates with the internal passage that guides the liquid and air from the two pumps upward. 6. A foam dispenser according to any one of claims 1-5.

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