Discharge container

The discharge container design addresses contamination issues by using a check valve and nozzle valve configuration to prevent liquid-metal contact, ensuring hygienic use and cost-effective, long-term operation with foamy dispensing capabilities.

JP7837833B2Active Publication Date: 2026-03-31YOSHINO KOGYOSHO CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-31
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Conventional discharge containers with upward-biased nozzle heads for dispensing liquids risk contamination due to contact with metal springs, which is unsanitary, especially when used for non-food items like seasonings.

Method used

A discharge container design featuring a check valve and nozzle valve configuration that allows pressurization without direct contact between the liquid and metal parts, using a movable nozzle head biased upward by a contact portion, and incorporating a gas-liquid mixing unit for foaming, with a detachable pressurizing unit to prevent interference.

Benefits of technology

The design ensures hygienic use of the liquid contents by avoiding contact with metal, reduces manufacturing costs, and allows long-term use without rusting, while enabling foamy dispensing and preventing unintended discharge or leakage.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a novel discharge container capable of sanitarily using a stored content liquid.SOLUTION: A discharge container 100 comprises: a container body 10 for storing a content liquid; a pressurizing part 50 for pressurizing the inside of the container body 10; a fitting cap 20 to be attached to a mouth 11 of the container body 10; and a nozzle head 30 provided with a nozzle 33 which is energized upward and discharges the content liquid to the outside. The pressurizing part 50 and the container body 10 are communicated with each other via a check valve 25 which is opened by a pressure rise in the pressurizing part 50. The container body 10 and the nozzle 33 are communicated with each other via a nozzle valve 34 which is opened by depression of the nozzle head 30.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] This disclosure relates to a discharge container for discharging a content liquid.

Background Art

[0002] Conventionally, in containers filled with shampoo, body soap, hand soap, facial cleanser, etc., a discharge container that can operate a pump by pressing a nozzle head biased upward to discharge the content liquid in the container body from the nozzle is frequently used (for example, see Patent Document 1).

[0003] In the discharge container as described above, when the discharge of the content liquid is completed by pressing the nozzle head by the user, it is common for the nozzle head biased upward by the spring member to be configured to automatically return to its original height.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when a seasoning or the like is contained in such a discharge container and discharged from the nozzle by a similar method, the content liquid touches the spring member made of metal, so there is room for improvement from the viewpoint of hygienically using the content liquid.

[0006] This disclosure aims to solve such problems, and its object is to provide a new discharge container that can hygienically use the contained content liquid.

Means for Solving the Problems

[0007] In order to solve the above problems, the discharge container of this disclosure [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. Occasionally, 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 has a closing section that closes the outside air intake hole when pressed toward the container body. It is characterized by the following:

[0008] 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 nozzle head is biased upward by a contact portion provided at the lower part of the nozzle head contacting a biasing portion provided on the top wall of the mounting cap from above.

[0009] 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 unit for mixing the liquid contents inside the container body with air, and a foaming member for foaming the mixed liquid contents and air.

[0010] Furthermore, the discharge container of this disclosure is [4] In any of the configurations described in [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. [Effects of the Invention]

[0013] According to the present disclosure, it is possible to provide a new discharge container that can hygienically use the contained content liquid.

Brief Description of the Drawings

[0014] [Figure 1] It is an enlarged front sectional view showing the configuration of a discharge container according to an embodiment of the present disclosure. [Figure 2] It is an enlarged front sectional view showing a state in which a pressure piston is pulled up in a discharge container according to an embodiment of the present disclosure. [Figure 3] It is an enlarged front sectional view showing a state in which, after pressurization in the accommodation space of the container body, the nozzle head is pressed down (the pressed state is shown by a broken line), and the content liquid in the pressurized container body is foamed and discharged.

Mode for Carrying Out the Invention

[0015] Hereinafter, a discharge container 100 which is an embodiment of the present disclosure will be described in detail with reference to the drawings. In the specification, claims, abstract, and drawings of the present application, the vertical direction is based on the state in which the discharge container 100 is upright on a horizontal plane. The upper side means the upper side in FIG. 1, and the lower side means the lower side in FIG. 1. Further, the front means the direction in which bubbles are discharged from the discharge hole 33a of the nozzle head 30 in FIG. 1, which is the left direction in FIG. 1. Further, the left-right direction (lateral direction) is the left-right direction when the discharge container 100 is viewed from the discharge hole 33a side (the left side in FIG. 1), and is the direction perpendicular to the plane of the paper in FIG. 1. Further, the radial direction is the direction along each straight line that passes through each axis extending in the vertical direction of the mounting cap 20, check valve 25, nozzle head 30, foam generating portion 40, and pressurizing portion 50 and is perpendicular to each axis. Further, the inner radial direction means the direction approaching each axis along each straight line, and the outer radial direction means the direction moving away from each axis along each straight line.

[0016] As shown in Fig. 1, the discharging container 100 includes a container body 10 for containing the content liquid, a mounting cap 20 mounted on the mouth portion 11 of the container body 10, a pressurizing portion 50 for pressurizing the inside of the container body 10, a nozzle head 30 provided with a nozzle 33 for discharging the content liquid to the outside, and a foam generating portion 40 for mixing the content liquid and air inside the container body 10 to generate foam.

[0017] The container body 10 includes a cylindrical mouth portion 11 provided at the upper part, a substantially cylindrical body portion 13 connected to the lower end portion of the mouth portion 11 via a shoulder portion 12, and a bottom portion for closing the lower end portion of the body portion 13. The inside of the body portion 13 forms a storage space S for the content liquid. On the outer peripheral surface of the mouth portion 11, a male screw portion 11a that can be screwed into a female screw portion 21a provided on the inner surface of the peripheral wall 21 of the mounting cap 20 is provided.

[0018] The container body 10 can be formed by performing extrusion blow molding on, for example, a parison made of a synthetic resin material. And for the material constituting the container body 10, for example, low density polyethylene (LDPE) or high density polyethylene resin (HDPE) can be used. In particular, when HDPE is used, high rigidity can be imparted. However, it is not limited to this mode. For example, when the container body 10 is formed by performing biaxial stretch blow molding, polyethylene terephthalate (PET) or the like may be used.

[0019] 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 radially inward 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.

[0020] On the upper surface of the top wall 22, a biasing portion 22f having a frustoconical side shape is provided concentrically with the head mounting cylinder 22h, and the inside of the biasing portion 22f has a through hole 22g that connects the upper and lower sides of the top wall 22. In addition, a through hole 22c is provided inside the check valve mounting cylinder 22b of the top wall 22 that connects the pressurizing portion 50 with the housing space S of the container body 10.

[0021] 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 with respect 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.

[0022] As shown in Figure 1, the nozzle head 30 includes 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 that extends forward from the outer peripheral wall 31 and demarcates a nozzle flow path N that guides 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.

[0023] 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 part that is slightly inclined downward toward the front. Furthermore, it is not necessary to have a nozzle 33 that protrudes significantly toward the front; it is sufficient that the foam guided upward can be discharged from a discharge hole 33a that opens toward the front, in which case the part that partitions the discharge hole 33a becomes the nozzle 33. The discharge hole 33a may also be configured to discharge foam toward directions other than the front, such as upward or to the left or right.

[0024] 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.

[0025] 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 in the vertical direction, 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.

[0026] 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 returning 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.

[0027] As shown in Figure 1, below the top wall 22 of the mounting cap 20, a 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 includes a gas-liquid mixing unit 41 that mixes the liquid contents in the container body 10 with air, a foaming member 42 that foams the mixed liquid contents and air, and a liquid supply pipe 43 that supplies the liquid contents in the storage space S of the container body 10 to the gas-liquid mixing unit 41.

[0028] 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 introduction hole 41b located in the radial center for introducing the contents of the storage space S through a liquid supply pipe 43, an air introduction hole 41a located radially outside the liquid introduction hole 41b for introducing air from inside the container body 10, and a mounting cylinder 41d into which the liquid supply pipe 43 is fitted.

[0029] A foam member 42 is fitted and installed inside the upper part of the mixing cylinder 41c. The foam member 42 comprises two cylindrical ring members 42b arranged vertically, and mesh filters 42a attached to the vertical ends of the ring members 42b. The mesh filters 42a are formed in a mesh pattern and foam the mixed liquid contents and air to supply them to the nozzle head 30. In this embodiment, a total of two mesh filters 42a are installed 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).

[0030] The pressurizing section 50 includes a pressurizing cylinder 51 fixed to the inner surface of the pressurizing section 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 section 55 attached to the end of the pressurizing piston 53 opposite to the container body 10 (upper side in Figure 1).

[0031] As shown in Figure 1, the pressurizing cylinder 51 has a substantially cylindrical shape with its axis running vertically, forming a pressurized air space P inside, and is equipped with a reduced-diameter mounting cylinder 51a at its lower end. By fitting this mounting cylinder 51a inside the pressurizing unit mounting cylinder 22j, the pressurizing unit 50 is fixed to the top wall 22 of the mounting cap 20 in a detachable manner.

[0032] 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 tubular portion 53a that can slide along the inside of the pressurizing cylinder 51 and move in the axial direction, and an end wall 53b that closes the upper end of the tubular portion 53a. In other words, the end wall 53b closes the end of the tubular 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. In addition, the upper end of the tubular portion 53a of the pressurizing piston 53 is provided with an engagement projection 53d that protrudes radially outward and engages undercut with the engagement projection 55b1 of the operating portion 55, which will be described later.

[0033] 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 that hangs down from the lower surface of the operating plate 55a. An engaging projection 55b1 is provided on the inside of the lower end of the engaging cylinder 55b, which can engage with the engaging projection 53d of the pressurizing piston 53.

[0034] Furthermore, a substantially hemispherical closing portion 55c that protrudes downward is provided at the radial center of the lower surface of the control plate 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.

[0035] As described later, the pressurizing piston 53 is raised by pulling up the operating section 55 in the direction away from the container body 10 (upward in Figure 1). At this time, the closing section 55c moves to a height position relative to the pressurizing piston 53, as shown by the dashed line in Figure 2. This opens the outside air intake hole 53c, and outside air is 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 provided intermittently in the circumferential direction, and air that enters 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. If the inside of the container body 10 is sufficiently pressurized and the pressurizing piston 53 cannot descend (if the internal pressure of the pressurized space P becomes too high), the pressure in the pressurized space P can also be released through the outside air intake hole 53c.

[0036] 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 upward together with the pressurizing piston 53 from the state shown in Figure 1. At this time, the engaging projection 53d and the engaging projection 55b1 engage in an undercut engagement when the closing portion 55c rises to the position shown by the dashed line in Figure 2 relative to the pressurizing piston 53. Therefore, air that enters from below the engaging cylinder 55b in the radial position between the engaging cylinder 55b and the pressurizing piston 53 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 introduction hole 53c which is opened through the gap between the operating plate 55a and the end wall 53b.

[0037] At this time, as the volume of the pressurized space P increases, the pressure inside becomes negative, so the check valve body 25a of the check valve 25 is pulled towards the pressurized space P and seats on the valve seat 22d, and the check valve 25 is closed.

[0038] Furthermore, to prevent the pressurizing piston 53 from completely detaching 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 detachment.

[0039] Next, as shown in Figure 2, the user pushes the operating plate 55a, which has been raised upward, 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 comes into contact with the outer edge of the outside air intake hole 53c and closes it. Inside the pressurized space P, the pressure changes to positive pressure due to the compression by the operating unit 55, so the pressurizing unit 50 pushes down the check valve body 25a through the through hole 22c, and the check valve 25 opens.

[0040] After the check valve 25 is opened, if the user pushes the operating part 55 further downward, air from the pressurized space P is introduced into the storage space S of the container body 10. Eventually, the storage space S becomes positive pressure and accumulates, but because the nozzle head 30 is biased upward, the nozzle valve body 34a is pressed against the biasing part 22f and the nozzle valve 34 is closed, so at this stage, the compressed liquid contents and air are not discharged from the nozzle 33.

[0041] 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), so the upward biasing force increases further.

[0042] The nozzle valve 34 opens when the nozzle head 30 is pressed, and the liquid contents in the storage space S of the container body 10, which were 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 black arrow in Figure 3). Similarly, the air in the storage space S of the container body 10, which were under positive pressure, are introduced into the mixing space M of the gas-liquid mixing section 41 through the air inlet hole 41a.

[0043] 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 after 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 inside the nozzle 33.

[0044] When the user finishes using the foam, they stop pressing the nozzle head 30. As a result, the contact portion 32c of the nozzle head 30, which was elastically deformed radially outward, returns to its original height position as it is displaced upward by the restoring force, returning radially inward. In the process of the nozzle head 30 returning to its original height position, the nozzle valve body 34a comes into contact with the biasing portion 22f from below, and the nozzle valve 34 closes again.

[0045] 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.

[0046] 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 discharge container 100 can be used for a long period of time by refilling the liquid contents. Furthermore, since the container body 10 can be pressurized, it is possible to suppress the backflow of the discharged liquid into the container body 10. Also, while the container body 10 is pressurized, the liquid can be discharged for a long period of time by pressing the nozzle head 30.

[0047] Furthermore, in this embodiment, the nozzle head 30 is mounted on the mounting cap 20 so as to be movable in the vertical direction, and the nozzle head 30 is configured to be biased upward by the contact portion 32c provided at the bottom of the nozzle head 30 contacting the 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.

[0048] Furthermore, in this embodiment, the container body 10 is configured as a foam dispensing container further comprising a gas-liquid mixing unit 41 for mixing the liquid contents with air, and a foaming member 42 for foaming the mixed liquid contents and air. By adopting this configuration, foamy seasonings and the like can be hygienically dispensed and used.

[0049] Furthermore, in this embodiment, the nozzle valve 34 is fixed to the nozzle head 30 and has a valve body (nozzle valve 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. In addition, even when the inside of the container body 10 is not pressurized, the nozzle valve 34 can be closed by this biasing force, thereby suppressing liquid leakage during distribution and storage.

[0050] 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.

[0051] Furthermore, in this embodiment, the pressurizing piston 53 has a cylindrical portion 53a that can move along the inner surface of the pressurizing cylinder 51 in the axial direction 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, and an outside air inlet hole 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 hole 53c when pressed toward the container body 10. By adopting this configuration, the outside air inlet hole 53c can be opened when air is introduced into the pressurizing portion 50 and the outside air inlet hole 53c can be automatically closed during pressurization, so there is no need to provide a separate outside air inlet valve.

[0052] 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 are included 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. It should be understood that these are also included within the scope of the present invention.

[0053] 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 be configured to be attached to the container body 10. Alternatively, the pressurizing unit 50 may be fixed to the mounting cap 20 or the like in a way that prevents it from being detached.

[0054] 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, the contact portion 32c, which is not easily elastically deformed and hangs down from the nozzle head 30, may be configured to be biased upward by the biasing portion 22f, which is provided on the mounting cap 20, 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.

[0055] 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 it. However, the embodiment is not limited to this configuration, and the container may be configured to discharge the liquid contents without foaming them.

[0056] 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, but the embodiment is not limited to this. The nozzle valve 34 may also be configured to close by the nozzle valve body 34a sitting on a valve seat other than the biasing portion 22f provided on the mounting cap 20 or the like. [Industrial applicability]

[0057] This disclosure makes it possible to provide a new dispensing container 100 that allows for the hygienic use of the contained liquid. [Explanation of Symbols]

[0058] 10 Container body 11 Mouth 11a Male threaded portion 12 Shoulder 13 Torso 20 Attachment cap 21 Peripheral wall 21a Female thread section 22 Ceiling Wall 22a Sealing tube 22b Check valve mounting cylinder 22c through hole 22d valve seat 22e Foam generating unit mounting cylinder 22f Force section 22g through hole 22h Head mounting cylinder 22j pressurized section mounting cylinder 25 Check valve 25a Check valve body 25b Valve fixing cylinder 25c valve support arm 26 Packing 30 Nozzle Heads 31 Outer wall 32 Pressure wall 32a Inner wall 32b Valve fixing cylinder 32c Contact part 33 nozzles 33a Discharge hole 34 Nozzle valve 34a Nozzle valve body 34b Valve fixing post 35 sealing member 35a Sliding part 35b Fixing ring 40 Foam generation section 41 Gas-liquid mixing section 41a Air inlet 41b Liquid introduction hole 41c Mixing cylinder part 41d Mating tube 42 Foamed material 42a Mesh filter 42b Ring member 43 Liquid supply pipe 50 Pressurized section 51 Pressurized cylinder 51a Mounting tube 53 Pressurized piston 53a Cylindrical part 53b End wall 53c Outside air intake vent 53d Engagement protrusion 55 Operation section 55a Operation board 55b Engagement tube 55b1 Engagement protrusion 55c Occlusion 100 Discharge container M mixed space N Nozzle Flow Channel P pressurized space S Containment space

Claims

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 part is a discharge container having a closing part that closes the outside air intake hole when pressed toward the container body.

2. 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 nozzle head is biased upward by a contact portion provided at the lower part of the nozzle head contacting a biasing portion provided on the top wall of the mounting cap from above.

3. The discharge container according to claim 1 or 2, further comprising 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.

4. The discharge container according to claim 1 or 2, wherein 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.

Citation Information

Patent Citations

  • JP1973000614U

  • JP1988158861U

  • Pump type foam dispenser

    JP2011148535A

  • Accumulation type spray container

    JP2015034017A

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    JP2018052527A