JP7837833B2 - Discharge container - Google Patents

Description

This disclosure relates to a dispensing container for dispensing liquid contents.

Conventionally, in containers filled with shampoo, body soap, hand soap, facial cleanser, etc., dispensing containers have been widely used that operate a pump by pressing an upwardly biased nozzle head, allowing the liquid contents of the container to be dispensed from the nozzle (see, for example, Patent Document 1).

In dispensing containers like the one described above, it is common for the nozzle head, which is biased upward by a spring, to automatically return to its original height once the dispensing of the liquid content is complete due to the user pressing the nozzle head.

Japanese Patent Publication No. 2011-148535

Incidentally, when dispensing condiments or other liquids from a nozzle using a similar method in such a dispensing container, the liquid contents come into contact with a metal spring component. Therefore, there was room for improvement from the perspective of hygienic use of the liquid contents.

This disclosure aims to solve these problems, and its objective is to provide a new dispensing container that allows for the hygienic use of the contained liquid.

To solve the above problems, the discharge container of this disclosure is
[1]
A container body for holding the liquid contents,
A pressurizing unit that pressurizes the inside of the container body,
A mounting cap that is attached to the mouth of the container body,
A nozzle head equipped with a nozzle that is biased upward and discharges the contents to the outside,
A discharge container equipped with,
The pressurized section and the container body are in communication via a check valve that opens due to the pressure increase in the pressurized section.
The container body and the nozzle are in communication via a nozzle valve that is opened by pressing the nozzle head.
The pressurizing unit comprises a pressurizing cylinder detachably attached to the mounting cap or the container body, a pressurizing piston movable within the pressurizing cylinder in the axial direction of the pressurizing cylinder, and an operating part provided at the end of the pressurizing piston opposite to the container body.
The pressurizing piston has a cylindrical portion that is movable along the axial direction of the pressurizing cylinder on the inner surface of the pressurizing cylinder, and an end wall that closes the end of the cylindrical portion opposite to the container body, and an outside air intake hole is provided in the end wall.
The operating section is characterized by having a closing portion that closes the outside air intake hole when pressed toward the container body .

Furthermore, the discharge container of this disclosure is
[2]
In the configuration described in [1] above, it is preferable that the nozzle head is mounted on the mounting cap so as to be movable in the vertical direction, and that the contact portion provided at the lower part of the nozzle head is biased upward by contacting a biasing portion provided on the top wall of the mounting cap from above.

Furthermore, the discharge container of this disclosure is
[3]
In the configuration described in [1] or [2] above, it is preferable that the foam dispensing container further comprises a gas-liquid mixing section for mixing the liquid contents inside the container body with air, and a foaming member for foaming the mixed liquid contents and air.

Furthermore, the discharge container of this disclosure is
[4]
In the configuration described in any of [1] to [3] above, it is preferable that the nozzle valve has a valve body that is fixed to the nozzle head and closes the communication between the container body and the nozzle by contacting the top wall of the mounting cap from below.

This disclosure makes it possible to provide a new dispensing container that allows for the hygienic use of the contained liquid.

This is an enlarged front cross-sectional view showing the configuration of a discharge container according to one embodiment of the present disclosure. This is an enlarged front cross-sectional view showing a discharge container according to one embodiment of the present disclosure, with the pressurizing piston raised. This is a front-view enlarged cross-sectional view showing the state after pressurizing the container body's contents and then pressing down the nozzle head (shown as a dashed line) to dispense the pressurized liquid contents of the container body as foam.

Hereinafter, with reference to the drawings, a discharge container 100, which is one embodiment of the present disclosure, will be described in detail. In this specification, claims, abstract, and drawings, the vertical direction is based on the state in which the discharge container 100 is upright on a horizontal plane, with "up" meaning the top in Figure 1 and "down" meaning the bottom in Figure 1. Furthermore, "forward" is the direction in which foam is discharged from the discharge hole 33a of the nozzle head 30 in Figure 1, which is the left direction in Figure 1. Furthermore, the left-right direction (lateral) is the left-right direction when viewing the discharge container 100 from the discharge hole 33a side (left side in Figure 1), which is the direction perpendicular to the plane of the paper in Figure 1. Furthermore, the radial direction is the direction along the straight lines that pass through the vertically extending axes of the mounting cap 20, check valve 25, nozzle head 30, foam generating section 40, and pressurizing section 50 and are perpendicular to each of those axes. Furthermore, "radial inward" refers to the direction along each line towards each axis, while "radial outward" refers to the direction along each line away from each axis.

As shown in Figure 1, the discharge container 100 comprises a container body 10 for containing the liquid contents, a mounting cap 20 attached to the mouth 11 of the container body 10, a pressurizing unit 50 for pressurizing the inside of the container body 10, a nozzle head 30 equipped with a nozzle 33 for discharging the liquid contents to the outside, and a foam generating unit 40 for mixing the liquid contents and air inside the container body 10 to generate foam.

The container body 10 comprises a cylindrical opening 11 at the top, a substantially cylindrical body 13 connected to the lower end of the opening 11 via a shoulder portion 12, and a bottom portion that closes the lower end of the body 13. The inside of the body 13 forms a storage space S for the liquid contents. The outer circumferential surface of the opening 11 is provided with a male threaded portion 11a that can be screw-engaged with a female threaded portion 21a provided on the inner surface of the peripheral wall 21 of the mounting cap 20.

The container body 10 can be formed, for example, by extrusion blow molding onto a parison made of a synthetic resin material. The material constituting the container body 10 can be, for example, low-density polyethylene (LDPE) or high-density polyethylene resin (HDPE), and particularly when HDPE is used, high rigidity can be provided. However, the invention is not limited to this embodiment; for example, when the container body 10 is formed by biaxial stretch blow molding, polyethylene terephthalate (PET) or the like may be used.

The mounting cap 20 is attached to the mouth 11 of the container body 10. The mounting cap 20 comprises a peripheral wall 21 attached to the mouth 11 of the container body 10, a top wall 22 that closes the upper end of the peripheral wall 21, a sealing cylinder 22a that hangs down from the lower surface of the top wall 22 on the radially inner side of the peripheral wall 21, a head mounting cylinder 22h that is erected from the upper surface of the top wall 22 and to which the nozzle head 30 is attached via a sealing member 35, a foam generating unit mounting cylinder 22e that is concentric with the head mounting cylinder 22h and hangs down from the lower surface of the top wall 22, a pressurizing unit mounting cylinder 22j that is erected from the upper surface of the top wall 22 behind the head mounting cylinder 22h, and a check valve mounting cylinder 22b that hangs down from the lower surface of the top wall 22 below the pressurizing unit mounting cylinder 22j. A packing 26 that liquid-tightly seals the mouth 11 is attached to the outer surface of the sealing cylinder 22a. As shown in Figure 1, the packing 26 is sandwiched between the upper end surface of the opening 11 and the lower surface of the top wall 22.

On the upper surface of the top wall 22, a biasing portion 22f with a frustoconical side shape is provided concentrically with the head mounting cylinder 22h. The inside of the biasing portion 22f has a through hole 22g that connects the upper and lower sides of the top wall 22. Furthermore, a through hole 22c is provided inside the check valve mounting cylinder 22b of the top wall 22, connecting the pressurizing portion 50 with the housing space S of the container body 10.

The check valve mounting cylinder 22b of the mounting cap 20 is provided with a check valve 25 that opens due to the pressure rise in the pressurized section 50, connecting the pressurized space P of the pressurized section 50 with the housing space S of the container body 10. The check valve 25 comprises a check valve body 25a having a substantially circular shape in plan view, a valve fixing cylinder 25b that fixes the check valve body 25a to the mounting cap 20, and a valve support arm 25c that elastically supports the check valve body 25a relative to the valve fixing cylinder 25b. The valve support arm 25c is a leaf spring that supports the check valve body 25a at three points in the circumferential direction and extends spirally outward in the radial direction. The check valve body 25a closes the through hole 22c by seating on an annular valve seat 22d provided on the lower surface of the top wall 22.

As shown in Figure 1, the nozzle head 30 comprises an outer peripheral wall 31 that covers the head mounting cylinder 22h from the radially outer side, a pressing wall 32 connected to the upper end of the outer peripheral wall 31, a nozzle 33 extending forward from the outer peripheral wall 31 and forming a nozzle flow path N that guides the foam pumped from the foam generation unit 40 (described later) to the discharge hole 33a, an inner peripheral wall 32a that hangs down from the lower surface of the pressing wall 32 on the radially inner side of the outer peripheral wall 31, and a valve fixing cylinder 32b provided further inside the inner peripheral wall 32a and fixing the nozzle valve 34 (described later) to the pressing wall 32.

The discharge hole 33a only needs to be able to discharge the foam pumped from the foaming member 42 into the nozzle flow path N in a substantially horizontal direction, and does not necessarily have to be a cylindrical nozzle 33 extending substantially horizontally as in this embodiment. For example, the nozzle 33 may be configured as a cylindrical portion that is slightly inclined downward toward the front. Furthermore, it is not necessary to have a nozzle 33 that protrudes significantly forward; it is sufficient that the foam guided upward can be discharged from a discharge hole 33a that opens toward the front. In this case, the portion that defines the discharge hole 33a becomes the nozzle 33. The discharge hole 33a may also be configured to discharge foam in directions other than forward, such as upward or to the left or right.

As shown in Figure 1, the nozzle valve 34 comprises a nozzle valve body 34a having a hemispherical shell shape formed from the upper half of a spherical shell, and a valve fixing column 34b extending upward from the upper end of the nozzle valve body 34a. The nozzle valve 34 is fixed to the nozzle head 30 by fitting the valve fixing column 34b inside the valve fixing cylinder 32b of the nozzle head 30. The nozzle valve body 34a contacts the biasing portion 22f provided on the top wall 22 of the mounting cap 20 from below when the nozzle head 30 is biased upward, thereby closing the through hole 22g.

A sealing member 35 is attached to the outer surface of the inner circumferential wall 32a of the nozzle head 30 to provide a liquid-tight seal to the inside of the nozzle head 30 from the outside. The sealing member 35 comprises a fixed ring 35b attached to the inner circumferential wall 32a and a sliding portion 35a provided radially outside the fixed ring 35b. When the nozzle head 30 moves vertically, the sliding portion 35a slides along the inner surface of the head mounting cylinder 22h of the mounting cap 20, thereby sealing the inside of the nozzle head 30.

At the lower end of the inner circumferential wall 32a, a contact portion 32c is formed, which is intermittently provided in the circumferential direction and abuts against the biasing portion 22f from above. In this embodiment, the contact portion 32c abuts against the biasing portion 22f from above, and its lower end is elastically deformed slightly radially outward along the outer surface of the biasing portion 22f. The elastic force of this radially outward deformed contact portion 32c attempting to return to its original shape biases the nozzle head 30 upward. At this time, the upwardly biased nozzle valve body 34a abuts against the lower surface of the biasing portion 22f, and the nozzle valve 34 maintains a closed state due to this biasing force.

As shown in Figure 1, below the top wall 22 of the mounting cap 20, the foam generating unit 40 is fitted inside the foam generating unit mounting cylinder 22e and hangs down from the top wall 22. The foam generating unit 40 comprises a gas-liquid mixing unit 41 for mixing the liquid contents and air within the container body 10, a foaming member 42 for foaming the mixed liquid contents and air, and a liquid supply pipe 43 for supplying the liquid contents from the storage space S of the container body 10 to the gas-liquid mixing unit 41.

The gas-liquid mixing section 41 includes a mixing cylinder section 41c that forms a mixing space M. The lower end of the mixing cylinder section 41c is provided with a liquid inlet 41b located radially in the center for introducing the liquid contents from the storage space S through a liquid supply pipe 43, an air inlet 41a located radially outside the liquid inlet 41b for introducing air from within the container body 10, and a mounting cylinder 41d into which the liquid supply pipe 43 is fitted.

A foam member 42 is fitted and mounted on the inside of the upper part of the mixing cylinder 41c. The foam member 42 comprises two cylindrical ring members 42b arranged vertically, and mesh filters 42a mounted on the vertical ends of the ring members 42b. The mesh filters 42a are formed in a mesh pattern and foam the mixed liquid and air to supply it to the nozzle head 30. In this embodiment, a total of two mesh filters 42a are mounted so that each mesh filter 42a faces outward in the vertical direction (with the sides of the ring members 42b without mesh filters 42a facing each other).

The pressurizing unit 50 comprises a pressurizing cylinder 51 fixed to the inner surface of the pressurizing unit mounting cylinder 22j of the mounting cap 20 by fitting, a pressurizing piston 53 that can move within the pressurizing cylinder 51 in the axial direction of the pressurizing cylinder 51 (up and down direction in Figure 1), and an operating unit 55 attached to the end of the pressurizing piston 53 opposite to the container body 10 (upper side in Figure 1).

As shown in Figure 1, the pressurizing cylinder 51 has a substantially cylindrical shape with its axis oriented vertically. It forms a pressurized air space P inside and has a reduced-diameter mounting cylinder 51a at its lower end. By fitting this mounting cylinder 51a inside the pressurizing section mounting cylinder 22j, the pressurizing section 50 is fixed to the top wall 22 of the mounting cap 20 in a detachable manner.

Furthermore, as shown in Figure 1, a pressurizing piston 53 is arranged inside the pressurizing cylinder 51. The pressurizing piston 53 is formed in a top-cylindrical shape, as shown in the figure, and comprises a substantially cylindrical portion 53a that slides along the inside of the pressurizing cylinder 51 and moves axially, and an end wall 53b that closes the upper end of the cylindrical portion 53a. In other words, the end wall 53b closes the end of the cylindrical portion 53a opposite to the container body 10. The pressurizing piston 53 has an outside air introduction hole 53c in the radial center of the end wall 53b (on the axis of the pressurizing piston 53) for introducing outside air into the pressurized space P. Additionally, the upper end of the cylindrical portion 53a of the pressurizing piston 53 is provided with an engaging projection 53d that protrudes radially outward and engages undercut with the engaging projection 55b1 of the operating section 55, which will be described later.

An operating section 55 is attached to the end of the pressurizing piston 53 opposite to the container body 10 (the upper end in Figure 1). The operating section 55 comprises a substantially disc-shaped operating plate 55a and an engaging cylinder 55b hanging down from the lower surface of the operating plate 55a. An engaging projection 55b1, capable of engaging with the engaging projection 53d of the pressurizing piston 53, is provided on the inner side of the lower end of the engaging cylinder 55b.

Furthermore, a substantially hemispherical closing portion 55c, projecting downwards, is provided at the radial center of the lower surface of the control panel 55a. In this embodiment, the closing portion 55c can close the outside air intake hole 53c by its hemispherical surface contacting the outer edge of the outside air intake hole 53c.

As described later, the pressurizing piston 53 is raised by pulling the operating section 55 away from the container body 10 (upward in Figure 1). At this time, the closing section 55c moves to a height relative to the pressurizing piston 53, as indicated by the dashed line in Figure 2. This opens the outside air intake hole 53c, allowing outside air to be introduced into the pressurized space P through the radial and vertical gaps between the operating section 55 and the pressurizing piston 53, as shown by the dashed arrow in Figure 2. The engaging projection 53d is intermittently provided in the circumferential direction. Air entering the gap between the lower end of the engaging cylinder 55b and the pressurizing piston 53 is introduced into the pressurized space P through the circumferential gap of the engaging projection 53d and the outside air intake hole 53c. Furthermore, if the inside of the container body 10 is sufficiently pressurized and the pressurizing piston 53 cannot descend (i.e., if the internal pressure of the pressurized space P becomes too high), the pressure in the pressurized space P can be released through the outside air intake hole 53c.

When using the discharge container 100 configured in this way, the user first grasps the operating plate 55a of the operating unit 55 and pulls it upwards along with the pressurizing piston 53 from the state shown in Figure 1. At this time, the closing portion 55c rises to the position shown by the dashed line in Figure 2 relative to the pressurizing piston 53, and the engaging projection 53d and engaging projection 55b1 engage in an undercut. Therefore, air entering the radial position between the engaging cylinder 55b and the pressurizing piston 53 from below the engaging cylinder 55b rises through the inside of the engaging projection 55b1 and the circumferential position between the engaging projections 53d, as shown by the dashed arrow in Figure 2, and is then introduced into the pressurized space P through the outside air intake hole 53c, which is opened through the gap between the operating plate 55a and the end wall 53b.

At this time, as the volume of the pressurized space P increases, the pressure inside becomes negative. Therefore, the valve body 25a of the check valve 25 is pulled towards the pressurized space P and seats on the valve seat 22d, causing the check valve 25 to close.

Furthermore, to prevent the pressurizing piston 53 from completely disengaging from the pressurizing cylinder 51 when it is pulled up, for example, an engaging portion may be provided between the pressurizing piston 53 and the pressurizing cylinder 51 to prevent disengagement.

Next, as shown in Figure 2, the user presses the upward-lifted operating plate 55a downward, pushing down the operating unit 55 and the pressurizing piston 53. At this time, the hemispherical closing portion 55c of the operating unit 55 contacts the outer edge of the outside air intake hole 53c and closes it. Because the pressure inside the pressurized space P changes to positive pressure due to the compression by the operating unit 55, the pressurizing unit 50 pushes down the check valve body 25a through the through-hole 22c, and the check valve 25 opens.

After the check valve 25 is opened, if the user further pushes down the operating section 55, air from the pressurized space P is introduced into the containment space S of the container body 10. Eventually, the containment space S becomes positively pressurized and accumulates pressure. However, because the nozzle head 30 is biased upward, the nozzle valve body 34a is pressed against the biasing section 22f, closing the nozzle valve 34. Therefore, at this stage, the compressed liquid contents and air are not discharged from the nozzle 33.

Next, as shown in Figure 3, the user presses the pressing wall 32 of the nozzle head 30 downward against the upward biasing force (see the white arrow in Figure 3), separating the nozzle valve body 34a of the nozzle valve 34 downward from the lower surface of the biasing portion 22f of the top wall 22 (see the nozzle valve body 34a drawn with a dashed line in Figure 3). At this time, the contact portion 32c of the nozzle head 30 is further pushed radially outward by the biasing portion 22f (see the contact portion 32c after elastic deformation shown with a dashed line in Figure 3), thus further increasing the upward biasing force.

The nozzle valve 34 opens when the nozzle head 30 is pressed, and the liquid contents in the container body 10's containment space S, which was under positive pressure, are introduced into the gas-liquid mixing section 41 via the liquid supply pipe 43 and the liquid inlet hole 41b (see the black arrow in Figure 3). Similarly, the air in the container body 10's containment space S, which was under positive pressure, is introduced into the mixing space M of the gas-liquid mixing section 41 through the air inlet hole 41a.

The liquid contents and air introduced into the mixing space M are pumped to the foaming member 42 above by the positive pressure inside the container body 10, and are foamed into fine bubbles by passing through two mesh filters 42a. The generated bubbles are then discharged to the outside through the discharge hole 33a via the opened nozzle valve 34 and the nozzle flow path N within the nozzle 33.

When the user finishes using the foam, they release the pressure on the nozzle head 30. As a result, the contact portion 32c, which was elastically deformed radially outward, returns to its original height position due to the restoring force, while simultaneously displacing upward. During this process, the nozzle valve body 34a contacts the biasing portion 22f from below, causing the nozzle valve 34 to close again.

In this embodiment, as shown in Figure 3, the pressurizing unit 50 is removed from the mounting cap 20 when discharging foam. This prevents the mounted pressurizing unit 50 from interfering with the use of the discharge container 100.

As described above, this embodiment is a discharge container 100 comprising a container body 10 for containing the liquid contents, a pressurizing unit 50 for pressurizing the inside of the container body 10, a mounting cap 20 attached to the mouth 11 of the container body 10, and a nozzle head 30 that is biased upward and has a nozzle 33 for discharging the liquid contents to the outside. The pressurizing unit 50 and the container body 10 are in communication via a check valve 25 that opens when the pressure inside the pressurizing unit 50 rises, and the container body 10 and the nozzle 33 are in communication via a nozzle valve 34 that opens when the nozzle head 30 is pressed. By adopting this configuration, it is not necessary to operate the pump by pressing the upward-biased nozzle head 30 downward with a long stroke, as in conventional discharge containers.Therefore, it is not necessary to bias the nozzle head 30 upward with a metal spring or the like, so the liquid contents do not come into contact with the metal spring, and deterioration of the liquid contents due to rust on the metal spring can be suppressed. Therefore, the liquid contents can be used hygienically, and the dispensing container 100 can be used for a long period of time by refilling the liquid contents. Furthermore, since the inside of the container body 10 can be pressurized, backflow of the dispensed liquid contents into the container body 10 can be suppressed. Also, while the inside of the container body 10 is pressurized, the liquid contents can be dispensed for a long period of time by pressing the nozzle head 30.

Furthermore, in this embodiment, the nozzle head 30 is mounted on the mounting cap 20 so as to be movable in the vertical direction. The nozzle head 30 is configured to be biased upward by a contact portion 32c provided at the lower part of the nozzle head 30 contacting a biasing portion 22f provided on the top wall 22 of the mounting cap 20 from above. By adopting this configuration, the nozzle head 30 can be biased upward without using a new elastic member, thereby reducing the number of parts and suppressing the manufacturing cost of the discharge container 100.

Furthermore, in this embodiment, the container body 10 is configured as a foam dispensing container further comprising a gas-liquid mixing section 41 for mixing the liquid contents with air, and a foaming member 42 for foaming the mixed liquid contents and air. This configuration allows for the hygienic dispensing and use of foamy seasonings and other substances.

Furthermore, in this embodiment, the nozzle valve 34 is fixed to the nozzle head 30 and has a valve body (nozzle valve body 34a) that closes the through hole 22g by contacting the top wall 22 (biasing portion 22f) of the mounting cap 20 from below. By adopting this configuration, the upward biasing force of the nozzle head 30 can more firmly press the nozzle valve 34 against the valve seat (biasing portion 22f) to close it, thereby suppressing unintended discharge of the liquid contents when the nozzle head 30 is not being pressed. Also, even when the container body 10 is not pressurized, the nozzle valve 34 can be closed by this biasing force, thus suppressing liquid leakage during distribution and storage.

Furthermore, in this embodiment, the pressurizing unit 50 is configured to include a pressurizing cylinder 51 that is detachably attached to the mounting cap 20 or the container body 10, a pressurizing piston 53 that is movable within the pressurizing cylinder 51 in the axial direction of the pressurizing cylinder 51, and an operating part 55 provided at the end of the pressurizing piston 53 opposite to the container body 10. By adopting this configuration, the pressurizing unit 50 can be removed from the mounting cap 20 or the container body 10, so that the attached pressurizing unit 50 does not interfere with the use of the discharge container 100.

Furthermore, in this embodiment, the pressurizing piston 53 has a cylindrical portion 53a that is movable along the axial direction of the pressurizing cylinder 51 on the inner surface of the pressurizing cylinder 51, and an end wall 53b that closes the end of the cylindrical portion 53a opposite to the container body 10. An outside air inlet 53c is provided in the end wall 53b, and the operating portion 55 is configured to have a closing portion 55c that closes the outside air inlet 53c when pressed toward the container body 10. By adopting this configuration, the outside air inlet 53c can be opened when air is introduced into the pressurizing section 50 and automatically closed during pressurization, eliminating the need for a separate outside air inlet valve.

While this disclosure has been described based on various drawings and embodiments, it should be noted that those skilled in the art will find it easy to make various modifications and alterations based on this disclosure. Therefore, it should be noted that these modifications and alterations fall within the scope of the present invention. For example, the functions included in each component can be rearranged in a logically consistent manner, and multiple components can be combined into one or separated. These are also to be understood as being included within the scope of the present invention.

For example, in this embodiment, the pressurizing unit 50 is configured to be attached to the mounting cap 20, but the embodiment is not limited to this. The pressurizing unit 50 may also be configured to be attached to the container body 10. Furthermore, the pressurizing unit 50 may be permanently fixed to the mounting cap 20 or the like.

Furthermore, in this embodiment, the contact portion 32c of the nozzle head 30 contacts the biasing portion 22f of the mounting cap 20, and the nozzle head 30 is biased upward by the elastic deformation of the contact portion 32c radially outward. However, the embodiment is not limited to this configuration. For example, a contact portion 32c that is not easily elastically deformed and hangs down from the nozzle head 30 may be configured to be biased upward by a biasing portion 22f provided on the mounting cap 20, which is intermittently arranged in the circumferential direction and is elastically deformable. Alternatively, the nozzle head 30 may be biased upward by the elastic deformation of both the contact portion 32c and the biasing portion 22f.

Furthermore, in this embodiment, the discharge container 100 is configured as a foam discharge container that mixes the liquid contents with air and foams it before discharging. However, the embodiment is not limited to this configuration, and the container may be configured to discharge the liquid contents without foaming.

Furthermore, in this embodiment, the nozzle valve body 34a is configured to close the nozzle valve 34 by contacting the biasing portion 22f from below. However, the embodiment is not limited to this configuration. The nozzle valve 34 may also be configured to close by the nozzle valve body 34a seating on a valve seat other than the biasing portion 22f provided on the mounting cap 20 or the like.

This disclosure makes it possible to provide a new dispensing container 100 that allows for the hygienic use of the contained liquid.

10 Container body 11 Mouth 11a Male threaded part 12 Shoulder part 13 Body part 20 Mounting cap 21 Peripheral wall 21a Female threaded part 22 Top wall 22a Seal cylinder 22b Check valve mounting cylinder 22c Through hole 22d Valve seat 22e Foam generating part mounting cylinder 22f Biasing part 22g Through hole 22h Head mounting cylinder 22j Pressurizing part mounting cylinder 25 Check valve 25a Check valve valve body 25b Valve fixing cylinder 25c Valve support arm 26 Packing 30 Nozzle head 31 Outer peripheral wall 32 Pressing wall 32a Inner peripheral wall 32b Valve fixing cylinder 32c Contact part 33 Nozzle 33a Discharge hole 34 Nozzle valve 34a Nozzle valve valve body 34b Valve fixing column 35 Seal member 35a Sliding part 35b Fixing ring 40 Foam generating part 41 Gas-liquid mixing part 41a Air inlet hole 41b Liquid inlet hole 41c Mixing cylinder part 41d Fitting cylinder 42 Foaming member 42a Mesh filter 42b Ring member 43 Liquid supply pipe 50 Pressurizing part 51 Pressurizing cylinder 51a Mounting cylinder 53 Pressurizing piston 53a Cylindrical part 53b End wall 53c Outside air inlet hole 53d Engaging projection 55 Operating part 55a Operating plate 55b Engaging cylinder 55b1 Engaging projection 55c Closure part 100 Discharge container M Mixing space N Nozzle flow path P Pressurizing space S Storage space

Claims (4)

A container body for holding the liquid contents,
A pressurizing unit that pressurizes the inside of the container body,
A mounting cap that is attached to the mouth of the container body,
A nozzle head equipped with a nozzle that is biased upward and discharges the contents to the outside,
A discharge container equipped with,
The pressurized section and the container body are in communication via a check valve that opens due to the pressure increase in the pressurized section.
The container body and the nozzle are in communication via a nozzle valve that is opened by pressing the nozzle head.
The pressurizing unit comprises a pressurizing cylinder detachably attached to the mounting cap or the container body, a pressurizing piston movable within the pressurizing cylinder in the axial direction of the pressurizing cylinder, and an operating part provided at the end of the pressurizing piston opposite to the container body.
The pressurizing piston has a cylindrical portion that is movable along the axial direction of the pressurizing cylinder on the inner surface of the pressurizing cylinder, and an end wall that closes the end of the cylindrical portion opposite to the container body, and an outside air intake hole is provided in the end wall.
The operating part is a discharge container having a closing part that closes the outside air intake hole when pressed toward the container body . The discharge container according to claim 1, wherein the nozzle head is mounted on the mounting cap so as to be movable in the vertical direction, and the contact portion provided at the lower part of the nozzle head is biased upward by contacting a biasing portion provided on the top wall of the mounting cap from above. The discharge container according to claim 1 or 2, further comprising a gas-liquid mixing section for mixing the liquid contents and air within the container body, and a foaming member for foaming the mixed liquid contents and air. The discharge container according to claim 1 or 2, wherein the nozzle valve has a valve body fixed to the nozzle head and which closes the communication between the container body and the nozzle by contacting the top wall of the mounting cap from below.