JP2018016404A - Foamer dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamer dispenser capable of causing an aroma to adhere to a mixed liquid and discharging the mixed liquid in a foamy state without increasing the size.SOLUTION: A foamer dispenser 100 includes a base cap 1 held at the mouth of a container, pumps 2 and 3 held by the base cap 1, and a nozzle head 14 for causing a content liquid and air press-fed from the pumps 2 and 3 to be joined together, foamed, and discharged to the outside. The pump 2 for the content liquid includes a liquid cylinder 4a, a liquid piston 5, and a hollow system 7 for sending the press-fed content liquid to the nozzle head 14. The air pump 3 includes an air cylinder 4b and an air piston 10. An auxiliary air pump 30 includes an auxiliary air cylinder 30c provided to the nozzle head 14 and an auxiliary air piston 30s. The air cylinder 4b is communicated with the auxiliary air cylinder 30c, and an aroma F is arranged in at least any one of the air cylinder 4b and the auxiliary air cylinder 30c.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a former dispenser that discharges a mixture of content liquid and air in the form of foam.

  In containers filled with shampoo, body soap, hand soap, facial cleanser, etc., the content liquid in the container can be directly foamed and discharged from the viewpoint of simplifying use by omitting the foaming operation of the content liquid. Many are equipped with a former dispenser.

  Such a dispenser is a single unit in which a piston that sucks, pressurizes, and pumps content liquid and an air piston that sucks, pressurizes, and pumps air are arranged concentrically on a base cap held at the mouth of a container. Cylinder is installed. Then, by pressing the nozzle head and driving the pistons in each pump synchronously, the liquid contents and air are sucked into the respective cylinders, pressurized and pumped, and the liquid contents are mixed in the confluence space on the outlet side of the pump. And the air are mixed with each other and passed through a foaming member such as a mesh to discharge the content liquid in the form of foam (see, for example, Patent Document 1).

JP-A-8-230961

  By the way, in such a former dispenser, there is a need to make the contents scented and to be discharged in the form of bubbles. As one of countermeasures in this case, it is conceivable to fill the container with a content liquid that already contains a scent component. However, there are many needs to add a scent to the contents that do not contain scent components that are already mass-produced and to discharge them in the form of bubbles, and in order to respond to this, a fragrance is added to the former dispenser. It must be placed and exposed to the air before mixing. However, when a fragrance is disposed in the air cylinder of a conventional former dispenser, the size of the air cylinder increases, and the entire former dispenser tends to increase in size.

  An object of the present invention is to solve such a problem, and its purpose is to suppress the overall size and attach a scent to the air during use and discharge it in the form of a foam together with the content liquid. It is to provide a new former dispenser that is possible.

The present invention includes a base cap that is held at the mouth of a container, two pumps that are suspended and held by the base cap at the mouth of the container, respectively, and that individually sucks, pressurizes, and pumps the content liquid and air; A former dispenser comprising a nozzle head for causing the content liquid and air pumped from the pump to merge and foaming the mixed content liquid and air by a foaming member provided inside thereof and discharging the mixed liquid and air to the outside.
The pump for sucking, pressurizing, and pumping the liquid is a liquid cylinder that receives the liquid in the container, and pressurizes and pumps the liquid in the liquid cylinder in contact with the inner peripheral surface of the liquid cylinder. And a hollow stem having an internal passage for feeding the liquid content pumped from the liquid piston to the nozzle head,
Pumps used for air suction, pressurization, and pumping are:
An air pump having an air cylinder provided around the hollow stem, and an air piston that abuts on the inner peripheral surface of the air cylinder and pressurizes and pumps air in the air cylinder;
An auxiliary air pump having an auxiliary air cylinder that is provided in the nozzle head and takes in air from the outside, and an auxiliary air piston that moves through the internal space of the auxiliary air cylinder and pressurizes and pumps air in the auxiliary air cylinder. And
The air cylinder is in communication with the auxiliary air cylinder;
The hollow stem is displaced in the vertical direction by pressing and releasing the nozzle head, and the liquid piston, the air piston and the auxiliary air piston are displaced in the vertical direction in conjunction with the hollow stem,
In at least one of the air cylinder and the auxiliary air cylinder, a perfume is disposed in a state exposed to air.

  Moreover, it is preferable that the said fragrance | flavor is accommodated in the cartridge and this cartridge is attached to at least any one of the said air cylinder or the said auxiliary | assistant air cylinder.

  The auxiliary air piston preferably has an opening and a check valve that closes the opening.

  According to the former dispenser of the present invention, it is possible to discharge a foam together with the content liquid by attaching a scent to the air during use while suppressing the overall size.

It is sectional drawing which shows one Embodiment of the former dispenser according to this invention in the state with which the opening part of the container was mounted | worn. It is sectional drawing which shows the state which pushed the nozzle head from the state of FIG. 1, and discharged the content liquid.

  Hereinafter, with reference to drawings, one embodiment of former dispenser 100 which is the present invention is described in detail. FIG. 1 is a cross-sectional view showing an embodiment of a former dispenser 100 according to the present invention in a state where the former dispenser 100 is attached to the mouth of a container C. FIG. 2 shows that the nozzle head 14 is pushed down from the state of FIG. It is sectional drawing which shows the state which is discharging the content in foam form. 2 shows a state in which the stopper 15 shown in FIG. 1 is removed and the nozzle head 14 is pushed down against upward biasing by a spring 8 described later. Further, in the present specification, claims, abstracts, and drawings, the vertical direction is based on the state in which the former dispenser 100 is mounted on the container C and is upright on a horizontal plane, and the upper direction is a figure. The upper part and the lower part in 1 mean the lower part in FIG.

  In FIG. 1, reference numeral 1 denotes a base cap held at the mouth of the container C. The base cap 1 has an outer wall 1b that hangs down from the edge of the top wall 1a, and is removably held by screwing a screw portion provided inside the outer wall 1b into a screw portion provided at the mouth of the container C. Is done. In order to hold the base cap 1 in the container C, a known configuration such as undercut may be used. In addition, a hollow neck portion 1c that stands upward is provided at the center of the top wall 1a. The hollow neck 1c is provided with ribs 1e extending in the vertical direction on the inner peripheral surface thereof.

  Reference numerals 2 and 3 denote two pumps that are suspended from the mouth of the container C by the base cap 1 and suck, pressurize, and pressure-feed the content liquid and air, respectively. The 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. Is formed by. A flange 4f extending radially outward is provided above the cylinder 4, and when being suspended by the container C, a packing is provided on the lower surface side of the flange 4f, The packing is sandwiched with.

  Here, the content liquid pump 2 has a suction port 4c through which the content liquid in the container C flows 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. Further, in the liquid cylinder 4a, a liquid piston 5 that is in contact with the inner peripheral surface of the liquid cylinder 4a and is slidable along the axis thereof is disposed, and is formed inside the liquid piston 5. The poppet 6 is disposed in the internal passage t1. The poppet 6 has a valve portion 6a that opens and closes the suction port 4c at its lower end, and a valve portion 6b that opens and closes the outlet of the internal passage t1 at its upper end. A hollow stem 7 is disposed outside the liquid piston 5. The hollow stem 7 includes a lower cylindrical wall 7a that surrounds the liquid piston 5, an intermediate flange 7b that is integrally connected to the upper portion of the lower cylindrical wall 7a, and a through hole of the base cap 1 that stands up from the intermediate flange 7b. And an upper cylindrical wall 7c protruding from 1f. A spring 8 is disposed between the poppet 6 and the liquid piston 5. Thereby, the piston 5 for liquid and the hollow stem 7 are elastically supported so that sliding is possible.

  The intermediate flange 7b described above protrudes radially outward from the outer peripheral surface of the upper cylindrical wall 7c, as shown in FIG. And the upper cylindrical wall 7c upper part has the inward flange 7g extended to radial inside. A ball valve B having the inward flange 7g as a valve seat is provided above the inward flange 7g.

  As shown in FIG. 1, the air pump 3 includes an air piston 10 that is in contact with the inner peripheral surface of the air cylinder 4 b and is slidable along the axis. A cylindrical guide 10a that surrounds the hollow stem 7 and protrudes from the through hole 1f of the base cap 1 in an initial posture is provided on the radially inner side of the air piston 10, and as shown in FIG. And the inside of the cylindrical guide 10a is a first air passage A1 through which air passes. In the initial posture, the lower end of the cylindrical guide 10a is configured to contact 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, whereby the first air passage A1. It functions as a valve that opens and closes. An opening 10d that introduces air into the air cylinder 4b is formed in a partition wall 10c that extends radially outward from the cylindrical guide 10a and forms a space for pressurizing air between the cylindrical guide 10a and the air cylinder 4b. Is provided.

  Above the hollow stem 7, there is provided a nozzle head 14 that foams the mixed content liquid and air by a mesh ring 12 (foaming member) provided inside thereof and discharges the mixed liquid and air to the outside through the internal passage 14a. . The nozzle head 14 of this embodiment includes a jet ring 13 that holds the mesh ring 12, and holds the mesh ring 12 through the jet ring 13.

  The mesh ring 12 according to the present embodiment has a mesh attached to one end of a ring-shaped main body, and has a larger size (diameter) than a conventional mesh ring. In this embodiment, a total of two mesh rings 12 are attached to the jet ring 13 so that each mesh faces outward (so that the side on which no mesh is provided is a joint).

  Further, the jet ring 13 surrounds and holds the mesh ring 12, an upper cylindrical portion 13a, an intermediate cylindrical portion 13c that is integrally connected to the upper cylindrical portion 13a and is recessed radially inward to support the foamed member from below. A ring opening 13j that is provided at the lower end of the intermediate cylinder portion 13c and allows the mixture of the liquid and air to pass through, and a valve stopper 13h that is provided directly below the ring opening 13j and restricts the upward displacement of the ball valve B. Have. Further, on the outer peripheral side of the intermediate cylinder part 13c, there is provided a lower cylinder part 13d that is integrally connected to the intermediate cylinder part 13c and hangs downward to surround the upper end part of the cylindrical guide 10a.

  A plurality of vertical ribs 13e are provided on the inner peripheral surface of the lower cylindrical portion 13d so that the jet ring 13 is fitted and held in contact with the outer peripheral surface of the upper cylindrical wall 7c. The vertical rib 13e extends in the vertical direction along the axis of the lower cylindrical portion 13d, and its upper portion extends radially inward along the upper end of the upper cylindrical wall 7c. That is, between the vertical ribs 13e, it leads to the first air passage A1, extends in the vertical direction along the axis of the lower cylindrical portion 13d, and goes radially inward along the upper end of the upper cylindrical wall 7c. A gap (second air passage A2) is formed. As shown in FIG. 1, in the initial posture, a gap having a dimension L is formed between the lower end of the lower cylindrical portion 13 d and the partition wall 10 c of the air piston 10.

  The nozzle head 14 includes a nozzle head main body portion 14b in which an internal passage 14a for flowing the content liquid is formed, and a head ring 14c that forms an outer wall of an auxiliary air cylinder space 30c described later. The nozzle head main body portion 14b is provided with an inner cylindrical wall 14d on the back surface thereof for fitting and holding the upper cylindrical portion 13a. In addition, a gap is provided in the radial direction between the lower end of the head ring 14c and the upper end of the hollow neck portion 1c, and this gap allows the third ventilation to introduce air into the auxiliary air cylinder space 30c from the outside. A path A3 is formed.

  Next, the auxiliary air pump 30 that is the second air pump will be described. As shown in FIG. 1, the auxiliary air pump 30 includes a head ring 14c constituting an auxiliary air cylinder space 30c and an auxiliary air piston 30s that can move up and down while sliding on the inner peripheral surface of the head ring 14c. Have. The auxiliary air piston 30s is provided with an opening 30s1 penetrating vertically, and a check valve 30v for opening and closing the opening 30s1. A seal peripheral wall 30s3 hangs downward from the inner peripheral end of the auxiliary air piston 30s, and the lower end of the seal peripheral wall 30s3 is in contact with one end of the partition wall 10c of the air piston 10. Further, a radial gap between the seal peripheral wall 30s3 and the lower cylindrical portion 13d forms a fourth air passage A4 that communicates the auxiliary air cylinder space 30c and the air cylinder 4b.

  The fragrance cartridge 20 is inserted into the auxiliary air cylinder space 30c. The fragrance cartridge 20 includes a cartridge main body 22 and a lid body 24, and the fragrance F is accommodated in the cartridge main body 22. A plurality of apertures 22a are provided at the bottom of the cartridge main body 22, and the vaporized fragrance component enters the auxiliary air cylinder space 30c through the apertures 22a, and further includes a fourth air passage A4, an aperture 10d, and a first aperture. It is supplied to the merge space G via the air passage A1 and the second air passage A2. In the fragrance cartridge 20, the cartridge main body 22 is inserted into the head opening 14f provided in the nozzle head main body portion 14b, and the engagement protrusion 22b provided on the outer peripheral surface of the cartridge main body 22 is undercut engaged. It is fixed.

  In addition, in this embodiment, although using solid fragrance | flavor is assumed, it is not limited to this aspect, Other forms, such as a liquid fragrance | flavor, may be sufficient.

  A stopper 15 is provided between the top wall 1a of the base cap 1 and the head ring 14c to prevent the nozzle head 14 from being inadvertently pushed down. The stopper 15 is substantially C-shaped in a plan view and can be detachably mounted from the side of the hollow neck 1c.

  In the former dispenser 100 configured as described above, when the stopper 15 shown in FIG. 1 is removed and the nozzle head 14 is pushed downward, the hollow stem 7 connected to the jet ring 13 becomes the air corresponding to the dimension L shown in FIG. Slide slightly against the piston 10. In other words, the slide of the air piston 10 starts later than the slide of the hollow stem 7 by the dimension L. Thereby, as shown in FIG. 2, the lower end of the cylindrical guide 10a is separated from the intermediate flange 7b, and the inside of the air piston 10 and the first air passage A1 communicate with each other. When the pushing of the nozzle head 14 is continued, 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 is hollow. It heads for the space (merging space G) formed by the stem 7 and the jet ring 13.

  Further, as the nozzle head 14 is pushed downward, as shown in FIG. 2, the auxiliary air piston 30s rises while sliding on the inner peripheral surface in the auxiliary air cylinder space 30c formed by the head ring 14c. As a result, the pressure in the auxiliary air cylinder space 30c is increased, and the air in which the fragrance component is vaporized passes through the fourth ventilation path A4, and further passes through the opening 10d, the first ventilation path A1, and the second ventilation path A2, and becomes hollow. It heads for the space (merging 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 comes into contact with the inner surface of the liquid cylinder 4a, the suction port 4c is closed, the inside of the liquid cylinder 4a is pressurized, and the nozzle head 14 is further pressed, As shown in FIG. 2, the valve portion 6 b of the poppet 6 is separated from the outlet of the internal passage t <b> 1 in the liquid piston 5, and the content liquid existing in the internal passage t <b> 1 is inside the upper cylindrical wall 7 c of the hollow stem 7 ( It flows into the internal passage t2). Since the ball valve B is pushed up by the pressurization in the liquid cylinder 4a and the valve is opened, the content liquid flows into the merge space G together with the air passing through the second air passage A2, as shown in FIG. .

  Then, the content liquid in the gas-liquid mixed state in the merge space G becomes a bubble through the mesh ring 12 and is discharged to the outside through the internal passage 14 a of the nozzle head 14.

  When the force applied to the push-in is removed after the nozzle head 14 is fully pushed, the repulsive force of the spring 8 returns the liquid piston 5 and the hollow stem 7 to the initial posture, and the ball valve B reduces the pressure in the internal passage t2. Accordingly, it is seated on the inward flange 7g by its own weight.

  In this returning process, the liquid cylinder 4a is negatively slid by the upward sliding of the liquid piston 5, the poppet 6 is slightly raised, and the valve portion 6a is opened. 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 from the suction port 4c.

  On the other hand, in the air cylinder 4b, the upward sliding of the air piston 10 starts with a delay of the dimension L. Therefore, as shown in FIG. 1, in the first air passage A1, the lower end of the cylindrical guide 10a is connected to the intermediate flange 7b. It comes into contact and closes. For this reason, when the air piston 10 slides upward, the inside of the air piston 10 becomes negative pressure, so the fourth air passage A4 and the auxiliary air cylinder space 30c also become negative pressure, and the check that closed the opening 30s1. The valve 30v is opened, and air flowing in from the third air passage A3 communicating with the outside is introduced into the auxiliary air cylinder space 30c via the rib 30s2, the opening 30s1, and the check valve 30v. Part of the air introduced into the auxiliary air cylinder space 30c further flows into the inside of the air piston 10 through the fourth ventilation path A4 and the opening 10d. Further, as shown in FIG. 1, a horizontal hole 4e is provided in the upper part of the air cylinder 4b, and the air passing through the inside of the hollow neck 1c of the base cap 1 also enters the container C through the horizontal hole 4e. Inflow. Thereby, even if the contents are discharged from the inside of the container C, the inside of the container C does not remain in a negative pressure state.

  By repeatedly pushing the nozzle head 14 and returning to the initial posture in this manner, the content liquid in the container C can be continuously discharged in the form of foam.

  In the present embodiment, the fragrance cartridge 20 is configured to be attached to the auxiliary air pump 30, but the present invention is not limited to this aspect. The fragrance cartridge 20 is attached to the air pump 3 and the exhaust amount is suppressed to suppress an increase in the size of the air pump 3 while the exhaust amount of the auxiliary air pump 30 is increased to increase the predetermined amount of air for the former dispenser 100 as a whole. You may comprise so that supply_amount | feed_rate may be ensured.

  As described above, according to this embodiment, the air pump 3 is provided on the outer peripheral side of the content liquid pump 2, and the auxiliary air pump 30 is provided in the nozzle head 14, and the air cylinder 4 b of the air pump 3 is provided. And the auxiliary air cylinder space 30c of the auxiliary air pump 30 are communicated with each other, and the fragrance cartridge 20 containing the fragrance F is arranged in the auxiliary air cylinder space 30c. Thus, the auxiliary dispenser 100 can be arranged by forming the auxiliary air pump 30 by effectively utilizing the space on the outer peripheral side of the nozzle head 14 without increasing the size of the air pump 3. Without increasing the size, the scent can be attached to the liquid mixture during use and discharged in the form of bubbles. In particular, in the present embodiment, since the fragrance F is arranged in the auxiliary air cylinder space 30c and is configured to add scent to the air, unlike the case where the scent is added to the content liquid, the fragrance F is used as another fragrance during use. It can be replaced and used continuously.

  Moreover, according to this embodiment, since it comprised so that the fragrance | flavor F was accommodated in the fragrance | flavor cartridge 20 and attached to the auxiliary air cylinder space 30c, the fragrance | flavor F can be attached or detached easily and a different fragrance can be made to adhere.

  In addition, according to the present embodiment, the auxiliary air piston 30s is configured to have the check valve 30v that closes the opening 30s1, so that when the nozzle head 14 is pressed to discharge the liquid content, the air cylinder 4b And air in auxiliary air cylinder space 30c does not leak outside.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections 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, functions included in each component can be rearranged so as not to be logically contradictory, and a plurality of components can be combined into one or divided. It should be understood that these are included within the scope of the present invention.

  According to the former dispenser 100 of the present invention, it is possible to cause a scent to adhere to the air and discharge it in the form of a foam together with the content liquid while suppressing the overall size.

DESCRIPTION OF SYMBOLS 1 Base cap 1a Top wall 1b Outer wall 1c Hollow neck part 1e Rib 1f Through-hole 2 Pump for contents liquid (pump)
3 Air pump (pump)
4 cylinder 4a liquid cylinder 4b air cylinder 4c suction port 4d fitting cylinder 4e side hole 4f flange 5 liquid piston 6 poppet 6a valve part 6b valve part 7 hollow stem 7a lower cylindrical wall 7b intermediate flange 7c upper cylindrical wall 7g Inward flange 8 Spring 10 Air piston 10a Tubular guide 10b Rib 10c Partition 10d Opening 12 Mesh ring (foaming member)
13 Jet ring 13a Upper cylinder part 13c Intermediate cylinder part 13d Lower cylinder part 13e Vertical rib 13h Valve stopper 13j Ring opening 14 Nozzle head 14a Internal passage 14b Nozzle head body part 14c Head ring (auxiliary air cylinder)
14d Internal cylindrical wall 14f Head opening 15 Stopper 20 Fragrance cartridge 22 Cartridge body 22a Opening 22b Engaging protrusion 24 Lid 30 Auxiliary air pump 30c Auxiliary air cylinder space 30s Auxiliary air piston 30s1 Opening 30s2 Rib 30s3 Seal peripheral wall 30v Check valve 100 Former dispenser A1 1st ventilation path A2 2nd ventilation path A3 3rd ventilation path A4 4th ventilation path B Ball valve C Container F Fragrance G Merge space L Size P Suction pipe t1 Internal passage t2 Internal passage

Claims (3)

A base cap held at the mouth of the container, two pumps suspended and held by the base cap at the mouth of the container, respectively, for sucking, pressurizing and pumping the contents liquid and air, respectively, and pumped from the pump A former dispenser comprising a nozzle head for causing the mixed content liquid and air to join together and foaming the mixed content liquid and air by a foaming member provided on the inside thereof and discharging the mixed liquid and air to the outside,
The pump for sucking, pressurizing, and pumping the liquid is a liquid cylinder that receives the liquid in the container, and pressurizes and pumps the liquid in the liquid cylinder in contact with the inner peripheral surface of the liquid cylinder. And a hollow stem having an internal passage for feeding the liquid content pumped from the liquid piston to the nozzle head,
Pumps used for air suction, pressurization, and pumping are:
An air pump having an air cylinder provided around the hollow stem, and an air piston that abuts on the inner peripheral surface of the air cylinder and pressurizes and pumps air in the air cylinder;
An auxiliary air pump having an auxiliary air cylinder that is provided in the nozzle head and takes in air from the outside, and an auxiliary air piston that moves through the internal space of the auxiliary air cylinder and pressurizes and pumps air in the auxiliary air cylinder. And
The air cylinder is in communication with the auxiliary air cylinder;
The hollow stem is displaced in the vertical direction by pressing and releasing the nozzle head, and the liquid piston, the air piston and the auxiliary air piston are displaced in the vertical direction in conjunction with the hollow stem,
A former dispenser characterized in that a fragrance is disposed in air in at least one of the air cylinder and the auxiliary air cylinder.   The former dispenser according to claim 1, wherein the fragrance is contained in a cartridge, and the cartridge is attached to at least one of the air cylinder and the auxiliary air cylinder.   The former dispenser according to claim 1 or 2, wherein the auxiliary air piston has an opening and a check valve that closes the opening.

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