JP2014008966A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container having a simple structure, capable of being safely reused.SOLUTION: A discharge container 1 includes: a container body 4 having an inner container 2 and an outer container 3 provided with an introduction cylinder 11; a discharge unit 5 mounted on the container body; and an introduction body 6 for introducing pressure fluid into between the inner container and the outer container through the introduction cylinder. The introduction body includes: a filling container 50 being provided with an attachment cylinder 51 to which the introduction cylinder is detachably attached, and having a pressure chamber R1 to be filled with the pressure fluid; a communication cylinder 52 communicating with the inside of the attachment cylinder and the pressure chamber; a partition member 80 for partitioning the inside of the communication cylinder into a feed chamber R2 and a closed chamber R3; and a first valve body 60 which opens and closes with attachment/detachment of the introduction cylinder. In the partition member, there is arranged a movable member 82 which reciprocates according to the internal pressure difference between the feed chamber and the closed chamber, and has a second valve body 83 for opening/closing a communication opening part 69 with the movement of the movable member. The movable member makes the second valve body function so as to open the communication opening part when the internal pressure of the feed chamber is reduced to be lower than the internal pressure of the closed chamber.

Description

  The present invention relates to a discharge container.

  As a conventional discharge container, for example, as shown in Patent Document 1 below, a container main body in which contents are accommodated, and a discharge device that is attached to a mouth portion of the container main body and formed with a discharge port for discharging contents , A base provided below the bottom side of the container body, a movable wall part slidably contacting the inner peripheral surface of the container body toward the upper side of the mouth part, and contents for pushing up the movable wall part And a container (gas can) in which a high-pressure gas to be ejected in accordance with the decrease is known.

  In this discharge container, high-pressure gas is ejected from the gas can and the movable wall is moved upward with respect to the container body, thereby reducing the volume in the container body and increasing the internal pressure. By operating the container, the contents are discharged from the discharge port.

JP 2010-036922 A

  However, in the above-described conventional discharge container, since the inside of the container body is pressurized by jetting high-pressure gas from the gas can, it is necessary to replace the gas can after consuming the high-pressure gas in the gas can. For this reason, there is room for improvement in the method of refilling the high-pressure gas and the like when the consumer reuses it personally.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a discharge container that can be safely reused with a simple configuration.

In order to achieve the above object, the present invention provides the following means.
(1) A discharge container according to the present invention includes an inner container that accommodates the contents and is reduced in volume as the contents are reduced, and the inner container is provided with an inner container. An outer container in which an introduction cylinder into which pressurized fluid is introduced is formed; a discharger that is attached to the mouth of the container body and that discharges the contents; and the inner container through the introduction cylinder And an introduction body that introduces the pressurized fluid between the outer container and the outer container, and the introduction body is formed with a mounting cylinder in which the introduction cylinder is detachably mounted and filled with the pressurized fluid. A filling container having a pressurizing chamber therein, a communicating cylinder disposed in the filling container and communicating with the inside of the mounting cylinder and the pressurizing chamber, and the inside of the communicating cylinder within the mounting cylinder. A supply chamber for supplying the pressurized fluid in communication with the interior of the mounting cylinder. A partition member that is partitioned into a closed chamber, a first valve body that opens and closes as the introduction cylinder is attached and detached, and switches between communication between the interior of the mounting cylinder and the supply chamber and blocking of the supply cylinder, The communication tube is formed with a communication opening for communicating the supply chamber and the pressurizing chamber, and reciprocally moves in the partition member according to an internal pressure difference between the supply chamber and the sealed chamber. And a movable member provided with a second valve body that opens and closes the communication opening portion and switches communication between the supply chamber and the pressurization chamber and switching between the supply chamber and the pressurization chamber in accordance with the movement. The second valve body is actuated to open the communication opening when the internal pressure of the supply chamber is lower than the internal pressure of the sealed chamber.

  According to the discharge container according to the present invention, the container body and the introduction body can be combined together by attaching the introduction cylinder of the container body to the attachment cylinder of the introduction body. In addition, when the introduction cylinder is attached, the first valve body is opened, and the inside of the introduction cylinder communicates with the supply chamber through the attachment cylinder. As a result, the pressurized fluid in the supply chamber can be supplied between the inner container and the outer container through the introduction cylinder, and the inner container is pressurized in the direction of volume reduction deformation to make the inner pressure of the inner container positive. it can. Therefore, the contents can be discharged smoothly by operating the discharger.

  By the way, when the internal pressure of the supply chamber decreases due to the volumetric deformation of the inner container due to the discharge of the contents and becomes lower than the internal pressure of the sealed chamber, the second valve body is moved so that the movable member moves to open the communication opening. Operate. Accordingly, the pressurized fluid filled in the pressurized chamber of the filling container can be caused to flow into the supply chamber through the communication opening, the internal pressure of the reduced supply chamber can be increased, and at the same time, The pressure can be continuously applied in the direction of volume reduction deformation. Therefore, the next content can be discharged. Further, the movable member moves in the reverse direction due to the increase in the internal pressure of the supply chamber, and the second valve body blocks the communication between the supply chamber and the pressurizing chamber through the communication opening.

Thus, according to the present invention, the pressurized fluid can be supplied from the supply chamber between the inner container and the outer container while appropriately replenishing the pressurized fluid in the pressurized chamber into the supply chamber. The pressure can be constantly applied in the direction of deformation, and the contents can be reliably discharged.
Further, when the introduction cylinder is detached from the mounting cylinder and the introduction body and the container body are separated, the first valve body blocks communication between the inside of the mounting cylinder and the supply chamber, so that the supply chamber is exposed to the outside through the mounting cylinder. Communication is prevented. Therefore, after consuming the pressurized fluid, the pressurized fluid can be refilled in the pressurized chamber of the filling container, and the pressurized fluid can be distributed to the supply chamber. Therefore, it can be reused without exchanging the introduction body, and without using special gas, the consumer can refill the pressurized chamber with a general fluid such as air, safely. It can be used as an environmentally friendly discharge container.
Furthermore, since the introduction body can be configured with a simple configuration such as the first valve body and the second valve body, the configuration can be simplified.

(2) In the discharge container according to the present invention, the partition member or the communication tube is preferably provided with a guide member for guiding the movement of the movable member.

  In this case, since the reciprocating movement of the movable member can be guided, the movable member can be smoothly moved, and the opening / closing operation of the second valve body can be performed more finely and reliably. Therefore, the discharge property of the contents can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, it can be set as the discharge container which can be safely reused by simple structure. In particular, it is possible to provide a discharge container that can be refilled safely and easily by a consumer and that is also environmentally friendly.

It is a semi-longitudinal sectional view of the discharge container according to the present invention. FIG. 2 is a half longitudinal sectional view of a discharge container in a state where a container main body and a pressurizing device are separated from the state shown in FIG. 1. It is the semi-longitudinal sectional view which expanded the discharge device periphery shown in FIG. It is a half longitudinal cross-sectional view of the pressurization apparatus shown in FIG. FIG. 4 is a semi-longitudinal sectional view showing a state where a pressing head of the discharger shown in FIG. FIG. 2 is a semi-longitudinal cross-sectional view enlarging the periphery of the pressurizing apparatus shown in FIG. It is a semi-longitudinal sectional view showing a modification of the pressurizing device shown in FIG. It is a semi-longitudinal sectional view showing another modification of the pressure device shown in FIG.

Hereinafter, an embodiment of a discharge container according to the present invention will be described with reference to the drawings. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.
<Configuration of discharge container>

  As shown in FIGS. 1 and 2, the discharge container 1 includes a flexible inner container 2 that accommodates contents (not shown) and is reduced in volume as the contents decrease, and the inner container 2 includes A container main body 4 having an inner container 3 to be installed, a discharger 5 that is attached to the mouth 4a of the container main body 4 and discharges contents, and a pressurized fluid (not shown) between the inner container 2 and the outer container 3 And a pressurizing device (introducing body) 6.

  In addition, the inner container 2 and the outer container 3 are arrange | positioned in the state in which each central axis was located on the common axis. And the discharge device 5 and the pressurization apparatus 6 are arrange | positioned coaxially with this common axis | shaft. In the present embodiment, this common axis is referred to as a container axis O, the direction along the container axis O is referred to as the vertical direction, the mouth 4a side of the container body 4 along the vertical direction is referred to as the upper side, and the opposite side is referred to as the lower side. A direction perpendicular to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

(Container body)
The container body 4 is a double container formed by, for example, combining preforms in a double (inner and outer) and blow-molding. Specifically, the inner container 2 is laminated so as to be peelable from the outer container 3. ing. However, for example, a double container in which the preform of the inner container 2 is placed in a blow molded outer container 3 and blow molded, or the inner container 2 and the outer container 3 are individually formed and combined. There may be. Moreover, the container main body 4 can also be formed by the lamination peeling container (inner layer is laminated | stacked so that peeling is possible with respect to an outer layer) by direct blow molding.

  As shown in FIG. 3, the mouth portion 4 a of the container body 4 is configured such that the mouth portion 2 a of the inner container 2 and the mouth portion 3 a of the outer container 3 are laminated. At this time, a folded portion 2b that is folded outward in the radial direction is formed at the upper end portion of the mouth portion 2a of the inner container 2, and closes the upper end opening edge of the mouth portion 3a of the outer container 3 from above. Therefore, the mouth 3 a of the outer container 3 is closed by the inner container 2. In addition, an annular engagement protrusion 10 that protrudes outward in the radial direction is formed in the mouth 3 a of the outer container 3.

  As shown in FIG. 2, an introduction tube 11 extending downward is formed at the bottom of the outer container 3. The introduction cylinder 11 is a cylinder member into which a pressurized fluid is introduced from the pressurization device 6 between the inner container 2 and the outer container 3, and a lower end portion opened downward is more than a portion other than the lower end portion. It has a small diameter. Further, a threaded portion 11 a is formed at the upper end portion of the outer peripheral surface of the introduction tube 11.

(Discharger)
As shown in FIG. 3, the discharger 5 is inserted into a mounting cap 20 mounted on the mouth 4 a of the container body 4 and a cylinder cylinder 28 in the mounting cap 20, and is biased upward by the elastic member 21. The discharge stem 22 is disposed so as to be movable downward, and the pressing head 23 is provided at the upper end of the discharge stem 22.

  The mounting cap 20 includes a peripheral wall cylinder 25 attached to the mouth portion 4a of the container body 4, a seal cylinder 26 fitted to the mouth portion 4a of the container body 4 from the inside in the radial direction, and an upper end portion of the peripheral wall cylinder 25. An annular first flange portion 27 that is connected to the upper end portion of the seal cylinder 26 and abuts on the upper end opening edge of the mouth portion 4 a of the container body 4, and is provided in the mouth portion 4 a of the container body 4. The cylinder cylinder 28 having a bottom cylindrical shape, and an annular second flange portion 29 connecting the upper end opening of the cylinder cylinder 28 and the lower end of the seal cylinder 26 are provided.

An annular engagement protrusion 30 protruding toward the inside in the radial direction is formed on the inner peripheral surface of the peripheral wall cylinder 25, and the engagement protrusion 10 formed in the mouth portion 4 a of the container body 4 is formed from below. Is engaged. The engagement protrusions 10 and 30 are engaged with each other, whereby the mouth 4a of the container body 4 and the mounting cap 20 are undercut and fitted in the vertical direction between the mouth 4a and the mounting cap 20. Relative movement along is restricted.
Further, a restriction portion 31 for restricting relative movement of the mouth portion 4a and the mounting cap 20 along the circumferential direction is provided below the engagement protrusions 10 and 30 on the mouth portion 4a and the mounting cap 20 of the container body 4. Is provided.

The cylinder cylinder 28 is formed in a bottomed cylinder shape that gradually decreases in diameter from the upper side to the lower side. A communication hole 32 is formed in the bottom wall of the cylinder cylinder 28 to communicate the inside of the cylinder cylinder 28 with the inside of the inner container 2.
An annular support tube 33 is provided on the second flange portion 29 so as to protrude upward. The support cylinder 33 is positioned radially inward of the seal cylinder 26 so that there is a gap between the support cylinder 33 and the upper end opening edge is substantially flush with the upper surface of the first flange portion 27. Has been.

A ring-shaped seal member 35 is disposed in the upper end opening of the cylinder tube 28. The outer peripheral edge portion of the seal member 35 is placed on a stepped portion 28a that is connected to the upper end opening of the cylinder tube 28 and has a reduced diameter. It is pinched.
The pressing member 36 is formed with a through hole 36a through the discharge stem 22 at the center, and is fitted on the inner side of the support cylinder 33 while being placed on the upper end opening edge of the cylinder cylinder 28. Yes. Accordingly, the outer peripheral edge of the seal member 35 is securely clamped in cooperation with the step portion 28 a, and the seal member 35 is brought into airtight contact with the cylinder tube 28.

The discharge stem 22 is formed in a bottomed cylindrical shape opened upward by a cylindrical peripheral wall and a bottom wall, and is inserted into the cylinder cylinder 28 of the mounting cap 20 so as to be movable in the vertical direction as described above. Yes. An annular groove 22a that is recessed in an annular shape is formed on the inner side in the radial direction in the middle portion of the discharge stem 22 in the vertical direction of the peripheral wall. The inner peripheral edge of the seal member 35 is fitted in the annular groove 22a.
The inner peripheral end of the seal member 35 is in airtight contact with the discharge stem 22 in the annular groove 22a.

  Further, in the cylinder cylinder 28, an elastic member 21 is disposed in a compressed state between the bottom wall of the cylinder cylinder 28 and the discharge stem 22, and urges the discharge stem 22 upward. For these reasons, the discharge stem 22 is supported by the mounting cap 20 via the seal member 35 so as to be movable downward in the upward biased state.

  In the peripheral wall of the discharge stem 22, a plurality of through holes 22 b penetrating the peripheral wall in the radial direction are formed at intervals in the peripheral direction. The plurality of through holes 22b are closed by contacting the inner peripheral edge of the seal member 35 in the state shown in FIG.

The pressing head 23 is connected to the upper end of the discharge stem 22 and extends from the upper end of the head cylinder 40 so as to protrude radially outward, and a discharge port 42 is formed at the tip thereof. Nozzle cylinder 41 is provided.
The head cylinder 40 has a double cylinder shape, and the upper end portion of the discharge stem 22 is fitted to the inner cylinder portion thereof. The inside of the inner cylinder portion of the head cylinder 40 and the inside of the discharge stem 22 communicate with each other. Further, the inside of the inner cylinder portion of the head cylinder 40 is also communicated with a discharge path 41 a formed inside the nozzle cylinder 41. The radially outer portion of the discharge path 41a is a discharge port 42.

  A cover cap 45 is detachably covered on the discharge device 5 configured as described above. The cover cap 45 is formed in a top tube shape that can accommodate the discharge device 5 therein, and is detachably fitted to the peripheral wall tube 25 of the mounting cap 20.

(Pressure device)
As shown in FIGS. 1 and 2, the pressurizing device 6 is arranged below the container body 4, and supports the container body 4 from below while standing, while introducing the introduction cylinder 11 of the container body 4. The pressurized fluid can be introduced between the inner container 2 and the outer container 3.
Examples of the pressurized fluid include a gas such as a gas whose pressure has been increased and a liquid such as high-pressure water. The pressurized fluid is appropriately selected according to the type and use of the contents.

In the present embodiment, the support cylinder 46 is attached to the bottom side of the container body 4, and the pressurizing device 6 supports the container body 4 more stably via the support cylinder 46.
The support tube 46 includes a support wall portion 47 formed in a bowl shape in accordance with the shape of the bottom of the container body 4, and a peripheral wall portion 48 extending downward from the radial outer edge of the support wall portion 47. An insertion port portion 47 a through which the introduction tube 11 of the container body 4 is inserted is formed at the center portion of the support wall portion 47. The insertion opening 47a is fitted to the upper end of the introduction tube 11 from the outside in the radial direction. Thereby, the support cylinder 46 can be integrally combined with the container body 4.

  The peripheral wall portion 48 is formed in a cylindrical shape having the same diameter as the container body 4, and protrudes downward so that the lower end opening edge is substantially flush with the lower end portion of the introduction cylinder 11. As a result, it is possible to stably place the standing container body 4 on the table or the like while being integrally combined with the support cylinder 46.

  As shown in FIG. 4, the pressurizing device 6 includes a pressurizing chamber R <b> 1 in which a mounting cylinder 51 in which the introduction cylinder 11 of the container body 4 is detachably mounted is formed and the pressurized fluid is refillably filled. An inside filling container 50 and a communication cylinder 52 attached to the inside of the filling container 50 and communicating with the inside of the mounting cylinder 51 and the pressurizing chamber R1 are provided.

The filling container 50 includes a bottomed cylindrical container main body 53 and a lid 54 that closes the upper end opening of the container main body 53.
The lid 54 includes a cylindrical peripheral wall cylinder 55 that is fitted to the upper end portion of the peripheral wall portion of the container main body 53 from the outside in the radial direction, and a ceiling wall portion 56 that is connected to the upper end portion of the peripheral wall cylinder 55. It is equipped with. On the outer peripheral surface of the peripheral wall cylinder 55, an annular peripheral groove 55a that is recessed inward in the radial direction and opens upward is formed. In addition, the lower end part of the surrounding wall part 48 in the said support cylinder 46 is fitted by this surrounding groove 55a (refer FIG. 1).

  The mounting cylinder 51 protrudes upward from the center of the top wall 56. On the inner peripheral surface of the mounting cylinder 51, there is formed a screw part 51a to which the screw part 11a formed on the introduction cylinder 11 of the container body 4 is screwed. The interior of the mounting cylinder 51 communicates with the interior of the communication cylinder 52. In addition, a support tube 57 that is fitted into the communication tube 52 projects downward from the top wall portion 56. The support cylinder 57 is formed in a cylindrical shape whose diameter is larger than that of the mounting cylinder 51. A valve body cylinder 58 that supports the first valve body 60 is disposed on the inner side in the radial direction than the support cylinder 57.

  The valve body cylinder 58 is a cylindrical body formed in a tapered shape having a gradually reduced diameter from the upper end opening toward the lower end opening, and the upper end is below the threaded portion 51 a on the inner peripheral surface of the mounting cylinder 51. Connected to the position.

The first valve body 60 includes a cylindrical portion 61 that is fitted to the valve body cylinder 58 from the inside in the radial direction, and a circular valve body 62 that is continuous with the lower end portion of the cylindrical portion 61 and is circular in plan view. The bottom end opening of the valve cylinder 58 is closed so as to be openable and closable.
The upper end portion of the tubular portion 61 is folded back toward the outside in the radial direction, and is in contact with the upper end opening edge of the valve body tube 58. The valve body 62 is in contact with the lower end opening edge of the valve body cylinder 58, and the first valve body 60 is disposed so as to sandwich the valve body cylinder 58 in the vertical direction. As a result, the first valve body 60 is prevented from falling off from the valve body cylinder 58.

Since the valve main body 62 is in contact with the lower end opening edge of the valve body cylinder 58, the lower end opening of the valve main body 62 is sealed. The valve body 62 is disposed at a position where the valve cylinder 62 is pressed downward by the introduction cylinder 11 when the introduction cylinder 11 of the container body 4 is attached to the installation cylinder 51 (see FIG. 6).
A plurality of slits 63 extending in the radial direction are formed in the central portion of the valve body 62 so as to intersect each other. For example, the two slits 63 are formed so as to intersect at right angles and to be arranged in a cross shape in plan view. As a result, when the central portion of the valve body 62 is pressed downward by the introduction cylinder 11, for example, it can be bent and deformed downward, thereby opening the lower end opening of the valve body cylinder 58. It is possible.
The shape of the slit 63 is not limited, such as a single character.

  That is, the first valve body 60 functions as a valve body that opens and closes along with the attachment and detachment of the introduction cylinder 11 and switches communication between the inside of the mounting cylinder 51 and the inside of the communication cylinder 52 and the blocking thereof.

The communication tube 52 includes a cylindrical outer wall portion 65 that is fitted to the support tube 57 of the lid body 54 from the outside in the radial direction, and a bottom wall portion 66 that is connected to the lower end opening of the outer wall portion 65. , And an annular flange portion 67 projecting outward in the radial direction from the upper end opening of the outer wall portion 65, and is formed into a bottomed cylindrical shape.
An annular packing 68 is attached to the outer wall portion 65 so as to surround the outer wall portion 65 from the outside in the radial direction and abut against the flange portion 67 from below. The flange portion 67 and the packing 68 are sandwiched between the upper end opening edge of the peripheral wall portion in the container main body 53 and the top wall portion 56 of the lid body 54.
Thereby, the communication cylinder 52 protrudes downward from the lid body 54 and is attached to the filling container 50 so as to be accommodated in the container main body 53. In addition, the pressure chamber R1 is hermetically sealed by the packing 68.

  A communication opening 69 for communicating the inside of the communication cylinder 52 and the pressurizing chamber R <b> 1 is formed at the center of the bottom wall 66 of the communication cylinder 52, and more radially than the communication opening 69. A plurality of filling holes 70 are formed at intervals in the circumferential direction in a portion located outside.

  A valve member 71 is fitted into the communication opening 69. The valve member 71 is inserted into the communication opening 69, and an upper end of the valve member 71 protrudes radially outward within the communication tube 52, and is locked to the opening peripheral edge of the communication opening 69. And a ring-shaped on-off valve 73 that protrudes radially outward from the lower end of the core 72 and closes the filling hole 70 so as to be openable and closable.

The outer peripheral end portion of the on-off valve 73 is in contact with the lower surface of the bottom wall portion 66 over the entire circumference on the outer side in the radial direction from the plurality of filling holes 70, thereby closing the filling holes 70. . Further, the outer peripheral end portion of the on-off valve 73 can be deformed downward (for example, bending deformation, reverse deformation, etc.) away from the bottom wall portion 66.
The on-off valve 73 of the present embodiment allows the inflow of the pressurized fluid from the inside of the communication cylinder 52 through the filling hole 70 into the pressurized chamber R1 when filling with the pressurized fluid, and vice versa. It functions as a check valve that blocks the flow of air.

Inside the communication cylinder 52, the internal space communicates with the inside of the mounting cylinder 51 through the first valve body 60, and communication with the inside of the mounting cylinder 51 and the supply chamber R <b> 2 for supplying pressurized fluid into the introduction cylinder 11. A partition member 80 is attached that is partitioned into a sealed chamber R3 in which is blocked.
The partition member 80 is a cylindrical fixing member that is sandwiched between the bottom wall portion 66 of the communication tube 52 and the top wall portion 56 of the lid 54.
In addition, a movable member 82 that can reciprocate in the vertical direction is disposed inside the partition member 80. The movable member 82 includes a second valve body 83 that opens and closes the opening 72a of the core body 72 (that is, opens and closes the communication opening 69) with the vertical movement thereof.

The partition member 80 is provided so as to project upward from a top-part cylindrical first partition tube 85 disposed inside the outer wall portion 65 of the communication tube 52 and the top plate portion of the first partition tube 85, And a second partition tube 86 disposed inside the support tube 57 of the lid 54.
The lower end opening edge of the first partition tube 85 is in contact with the bottom wall portion 66 of the communication tube 52, and the upper end opening edge of the second partition tube 86 is in contact with the top wall portion 56 of the lid 54. The partition member 80 is fixed between the communication cylinder 52 and the lid body 54.

  A gap M <b> 1 is formed between the first partition cylinder 85 and the outer wall portion 65 of the communication cylinder 52. At the lower end of the first partition cylinder 85, a plurality of through grooves 85a penetrating the first partition cylinder 85 in the radial direction are formed at intervals in the circumferential direction. Further, a gap M2 communicating with the gap M1 is formed between the second partition cylinder 86 and the support cylinder 57 of the lid body 54. A plurality of through-grooves 86 a that penetrate the second partition tube 86 in the radial direction are formed at the upper end portion of the second partition tube 86 at intervals in the circumferential direction. The gap M and the gap M2 are formed by, for example, vertical ribs protruding from the outer surfaces of the first partition cylinder 85 and the second partition cylinder 86.

  The movable member 82 is disposed on the inner side of the first partition cylinder 85, and has a sliding cylinder 90 whose outer peripheral surface is in sliding contact with the inner peripheral surface of the first partition cylinder 85, and a central portion of the sliding cylinder 90. And a shaft body 91 that protrudes downward and is inserted through the opening 72a of the core body 72 of the valve member 71.

A space formed between the sliding cylinder 90 and the top plate portion of the first partition cylinder 85 functions as the sealed chamber R3. In particular, an annular seal ring 92 is attached to the outer peripheral surface of the sliding cylinder 90, and the space between the outer peripheral surface of the sliding cylinder 90 and the inner peripheral surface of the first partition cylinder 85 is hermetically sealed. The airtightness in the airtight chamber R3 is ensured.
Further, a space M3 formed between the sliding cylinder 90 and the bottom wall portion 66 of the communication cylinder 52, the gap M1 communicating with the space M3 through the through groove 85a, and a gap M2 communicating with the gap M1. A space M4 formed by the second partition tube 86, the top plate portion of the first partition tube 85 and the first valve body 60 and communicating with the gap M2 through the through groove 86a functions as the supply chamber R2.

The movable member 82 reciprocates in the vertical direction according to the internal pressure difference between the sealed chamber R3 and the supply chamber R2. Further, the shaft body 91 of the movable member 82 projects downward from the valve member 71 and reaches the pressurizing chamber R1. The second valve body 83 is attached to the lower end portion of the shaft body 91.
The second valve body 83 is formed in a bottomed cylindrical shape, and is fitted and fixed so as to cover the lower end portion of the shaft body 91 from below. The second valve element 83 has an annular flange valve 83a that protrudes radially outward from the upper end opening, and the flange valve 83a moves along with the vertical movement of the sliding cylinder 90. The member 71 can be brought into contact with or separated from the inner peripheral end of the on-off valve 73.

  That is, the second valve body 83 opens and closes the opening 72a of the core body 72 as the sliding cylinder 90 moves up and down, and switches communication between the supply chamber R2 and the pressurizing chamber R1 and blocking of the communication. When the internal pressure of the supply chamber R2 is lower than the internal pressure of the sealed chamber R3, the movable member 82 is biased by the internal pressure of the sealed chamber R3 and moves downward, and the flange valve 83a of the second valve body 83 is opened and closed. By separating from 73, the opening 72a of the core 72 is opened.

<Action of discharge container>
Next, the case where the contents are discharged using the discharge container 1 configured as described above will be described.
First, as shown in FIG. 1, before the discharge operation, the container body 4 and the pressurizing apparatus 6 are integrated with each other by screwing the introduction cylinder 11 of the container main body 4 into the mounting cylinder 51 of the pressurizing apparatus 6. Can be combined. At this time, the lower end portion of the peripheral wall portion 48 of the support cylinder 46 is fitted into a peripheral groove 55 a formed in the lid body 54 of the pressurizing device 6. Thereby, the container main body 4 is supported in the state which stood up stably.

  In the initial state, as shown in FIG. 4, the pressurizing chamber R1 and the supply chamber R2 in the pressurizing device 6 are filled with pressurized fluid, and the first valve body 60 and the second valve body are filled. 83 is in a closed state. Then, when the introduction cylinder 11 is screwed to the mounting cylinder 51, the lower end portion of the introduction cylinder 11 presses the central portion of the valve main body 62 in the first valve body 60 downward as shown in FIG. As a result, the central portion of the valve body 62 is bent and deformed downward, and the lower end opening of the valve body cylinder 58 is opened through the slit 63, so that the inside of the introduction cylinder 11 and the supply chamber R2 are connected through the mounting cylinder 51. The pressurized fluid in the supply chamber R <b> 2 can be supplied between the inner container 2 and the outer container 3 through the introduction cylinder 11. Therefore, the inner container 2 is pressurized in the direction of volume reduction deformation, and the inner pressure of the inner container 2 becomes a positive pressure.

Therefore, the contents can be smoothly discharged from the discharge port 42 by operating the discharger 5 after removing the cover cap 45.
Specifically, as shown in FIG. 5, when the pressing head 23 is pushed downward with respect to the mounting cap 20, the elastic member 21 is elastically deformed and the discharge stem 22 is pushed down, so that the inside of the seal member 35 is The peripheral end portion is bent downward and deformed. Thereby, the seal of the sealing member 35 with respect to the through hole 22b of the discharge stem 22 is released, and the inside of the discharge stem 22 and the inside of the cylinder cylinder 28 of the mounting cap 20 communicate with each other through the through hole 22b.
Accordingly, the contents in the inner container 2 flow into the discharge stem 22 through the communication hole 32 and the through hole 22b, and further flow from the inside of the discharge stem 22 to the discharge port 42, and are discharged from the discharge port 42 to the outside. .

  By the way, when the contents are discharged, the inner container 2 is deformed and deformed so as to be detached from the outer container 3 (see FIG. 1), so that the inner pressure of the supply chamber R2 gradually decreases due to the deformed deformation. When the internal pressure of the supply chamber R2 is lower than the internal pressure of the sealed chamber R3, the movable member 82 moves downward to open and close the flange valve 83a of the second valve body 83, as shown in FIG. The valve member 71 is separated from the valve 73, and the opening 72a of the core 72 in the valve member 71 is opened.

Thereby, the pressurized fluid filled in the pressurizing chamber R1 can be caused to flow into the supply chamber R2 through the opening 72a, and the lowered internal pressure of the supply chamber R2 can be increased. It is possible to pressurize the inner container 2 in the direction in which the inner volume 2 is subsequently reduced and deformed. Therefore, it is possible to prepare for the next discharge of the contents.
Further, since the movable member 82 moves upward as the internal pressure of the supply chamber R2 increases, the flange valve 83a of the second valve body 83 comes into contact with the on-off valve 73 of the valve member 71 again as shown in FIG. By closing the opening 72a of the core 72 in the valve member 71, the communication between the supply chamber R2 and the pressurizing chamber R1 is blocked.

  As described above, according to the present invention, the pressurized fluid is supplied from the supply chamber R2 between the inner container 2 and the outer container 3 while appropriately replenishing the pressurized fluid in the pressurized chamber R1 into the supply chamber R2. Therefore, the inner container 2 can be constantly pressurized in the direction of volume reduction deformation, and the contents can be reliably discharged.

Further, when the introducing cylinder 11 is detached from the mounting cylinder 51 and the pressurizing device 6 and the container body 4 are separated, as shown in FIG. 4, the first valve body 60 is disposed inside the mounting cylinder 51 and the supply chamber R2. Therefore, the supply chamber R2 is prevented from communicating with the outside through the mounting cylinder 51. Therefore, after consuming the pressurized fluid, the pressurized fluid can be refilled into the pressurized chamber R1 of the filling container 50, and the pressurized fluid can be distributed into the supply chamber R2.
Accordingly, the pressurizing device 6 can be reused without being replaced. For example, a consumer can refill a pressurizing chamber with a general fluid such as air without using a special gas. it can. Therefore, it can be used as a discharge container 1 that is safe and environmentally friendly.
Moreover, in this embodiment, since the pressurization apparatus 6 can be comprised with simple structures, such as the 1st valve body 60 and the 2nd valve body 83, the structure can be simplified.

  In addition, in the pressurization apparatus 6 of this embodiment, when refilling with a pressurized fluid, a filling operation can be performed by mounting a supply tool (not shown) on the mounting cylinder 51. In this case, the central part of the valve main body 62 in the first valve body 60 is pressed downward to cause the supply tool and the supply chamber R2 to communicate with each other. In this state, the pressurized fluid is supplied from the supply tool. Then, after flowing through the supply chamber R2, the pressurized fluid flows into the pressurized chamber R1 through the filling hole 70 while deforming the on-off valve 73 in the valve member 71 downward. Thereby, the filling operation | work of a pressurized fluid can be performed efficiently.

  Before filling, the movable member 82 moves downward due to a decrease in the internal pressure of the supply chamber R2, and the flange valve 83a of the second valve body 83 is separated from the on-off valve 73 of the valve member 71 and the opening of the core body 72 is opened. 72a is opened, but when the pressurized fluid in the pressurizing chamber R1 and the supply chamber R2 is refilled and the internal pressures in the pressurizing chamber R1 and the supply chamber R2 rise, the movable member 82 is moved upward by the internal pressure. Moving. As a result, the flange valve 83 a of the second valve body 83 contacts the on-off valve 73 of the valve member 71 and closes the opening 72 a of the core body 72. Further, the opening / closing valve 73 is restored and deformed by the increase in the internal pressure of the pressurizing chamber R <b> 1, and the filling hole 70 is closed. Thereby, refilling is completed and the pressurization apparatus 6 can be reused.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, although the introduction cylinder 11 of the container body 4 is screwed to the mounting cylinder 51, it may be detachably mounted and may be fitted and fixed. In addition, the discharge device 5 is configured to be attached to the mouth portion 4a of the container body 4, but is not limited to this case, and is indirectly connected to the mouth portion 4a of the container body 4 via another member. For example, it may be configured to be detachably mounted.
Moreover, the discharge device 5 may be configured to eject the contents in a spray form or a foam form, for example.

Moreover, in the said embodiment, as shown in FIG. 7, you may provide the guide member 100 which guides the movement of the movable member 82 to the partition member 80. As shown in FIG.
In this case, the guide member 100 is formed in a columnar shape that protrudes downward from the center portion of the top plate portion of the first partition cylinder 85, and the inside of the shaft body 91 in the movable member 82 along the container axis O. Has been inserted. As a result, the guide member 100 can be used to guide the vertical movement of the movable member 82, and the movable member 82 can be smoothly moved without causing rattling or the like to open and close the second valve body 83. The operation can be performed more finely and reliably. Therefore, the discharge property of the contents can be further improved.

Moreover, in the said embodiment, you may form in the container main body 53 or the cover body 54 of the filling container 50 the filling port for filling the pressurized chamber R1 with a pressurized fluid.
For example, as shown in FIG. 8, a filling port 101 may be formed in the ceiling wall portion 56 of the lid 54, and a filling valve body 102 that closes the filling port 101 in an openable and closable manner may be provided in the packing 68. In this case, since the pressurized fluid can be directly filled into the pressurizing chamber R1 through the filling port 101, the filling hole 70 and the valve member 71 in the above embodiment are unnecessary. Therefore, the configuration can be further simplified.

  Further, in this case, since the valve member 71 is unnecessary, it is possible to provide a guide cylinder 103 (guide member) for guiding the vertical movement of the movable member 82 on the bottom wall portion 66 of the communication cylinder 52. The guide tube 103 protrudes upward from the bottom wall 66 of the communication tube 52 along the opening periphery of the communication opening 69. Even in this case, it is possible to smoothly move the movable member 82 without causing rattling or the like. Further, it is preferable to attach an annular seal member 104 that hermetically seals the communication opening 69 to the second valve body 83.

R1 ... Pressurizing chamber R2 ... Supply chamber R3 ... Sealed chamber 1 ... Discharge container 2 ... Inner container 3 ... Outer container 4 ... Container body 4a ... Port of the container body 5 ... Discharger 6 ... Pressure device (introducer)
DESCRIPTION OF SYMBOLS 11 ... Introduction cylinder 50 ... Filling container 51 ... Installation cylinder 52 ... Communication cylinder 60 ... 1st valve body 69 ... Communication opening part 80 ... Partition member 82 ... Movable member 83 ... 2nd valve body 100 ... Guide member 103 ... Guide cylinder ( Guide member)

Claims (2)

An inner container that accommodates the contents and is reduced in volume as the contents are reduced, and an inner cylinder that includes the inner container and that introduces pressurized fluid between the inner container and the inner container are formed. A container body comprising an outer container;
A discharger attached to the mouth of the container body and discharging the contents;
An introduction body for introducing the pressurized fluid between the inner container and the outer container through the introduction tube,
The introducer is
A filling container in which a mounting cylinder to which the introduction cylinder is detachably mounted is formed and has a pressurized chamber filled with the pressurized fluid; and
A communicating cylinder disposed in the filling container and communicating with the interior of the mounting cylinder and the pressurizing chamber;
A partition member that divides the interior of the communication cylinder into a supply chamber that communicates with the interior of the mounting cylinder and supplies the pressurized fluid, and a sealed chamber that is blocked from communicating with the interior of the mounting cylinder;
A first valve body that opens and closes along with the attachment and detachment of the introduction cylinder, and switches between communication between the inside of the installation cylinder and the supply chamber and blocking of the supply cylinder;
The communication tube is formed with a communication opening for communicating the supply chamber and the pressurizing chamber,
In the partition member, reciprocation is possible according to an internal pressure difference between the supply chamber and the sealed chamber, and the communication opening is opened and closed along with the movement to communicate between the supply chamber and the pressurizing chamber. And a movable member provided with a second valve body for switching the blocking thereof,
The discharge container, wherein the movable member operates the second valve body so as to open the communication opening when an internal pressure of the supply chamber is lower than an internal pressure of the sealed chamber. In the discharge container according to claim 1,
A discharge container, wherein the partition member or the communication cylinder is provided with a guide member for guiding the movement of the movable member.

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