JP2014231386A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent contents and the like from entering an outside air introduction hole.SOLUTION: A discharge container includes: a container body 4 including an inner container 2 and an outer container 3; and a discharge cap 24 which is mounted on a mouth part 4a of the container body 4 and in which a discharge port 13 is formed for discharging contents. A suction hole 7c for sucking outside air is formed between the outer container 3 and the inner container 2. At the discharge cap 24, an outside air introduction hole 5d for communicating the outside part and the suction hole 7c, and a communication hole 9f for communicating the discharge port 13 and the inside of the inner container 2 are formed, and also, an air valve 45 for switching communication and shutdown of the suction hole 7c and the outside air introduction hole 5d, and a discharge valve 36 for opening/closing the communication hole 9f are provided. The discharge cap 24 includes a discharge cap body 5 which includes: a topped cylindrical part 50; and a discharge cylindrical part 51 which is erected at a top wall part of the bottomed cylindrical part 50 and in which the discharge port 13 is formed at its tip. The outside air introduction hole 5d is formed at the top wall part, and a covering wall 70 for covering the outside air introduction hole 5d is protrusively provided toward the outside in a radial direction at the discharge cylindrical part 51.

Description

  The present invention relates to a discharge container.

  Conventionally, as a container of this type, a container main body including a flexible inner container that accommodates contents and shrinks and deforms as the contents decrease, and an outer container in which the inner container is installed, A discharge cap attached to the mouth of the container body and formed with a discharge port for discharging the contents, and the outer container has an intake hole for sucking outside air between the inner container and the discharge cap The discharge cap is formed with an outside air introduction hole that connects the outside and the intake hole, and a communication hole that connects the discharge port and the inside of the inner container. There is one provided with an air valve that switches between communication and blocking with the outside air introduction hole and a discharge valve that opens and closes the communication hole (for example, see Patent Document 1).

Japanese Utility Model Publication No. 7-22951

  However, in the above-described conventional discharge container, the outside air introduction hole is located on the base end side of the discharge cylinder portion where the discharge port is formed at the tip of the discharge cap, and the outside air introduction hole is open toward the discharge port side. . For this reason, when contents or the like remain in the discharge port, there is a risk that this will enter the outside air introduction hole through the discharge cylinder portion.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a discharge container capable of preventing contents and the like from entering the outside air introduction hole.

  As a means for solving the above-mentioned problems, the present invention is a container comprising a flexible inner container that accommodates contents and squeezes and deforms as the contents decrease, and an outer container in which the inner container is built. A main body and a discharge cap attached to the mouth portion of the container main body and formed with a discharge port for discharging the contents, and the outer container inhales outside air between the inner container and the inner container. The air intake hole is formed, and the discharge cap is formed with an outside air introduction hole that communicates the outside and the air intake hole, and a communication hole that communicates the discharge port and the inside of the inner container. An air valve that switches between communication and blocking between the intake hole and the outside air introduction hole, and a discharge valve that opens and closes the communication hole, and the discharge cap includes a top tubular portion, and the top tubular portion Standing at the top wall of the discharge port at the tip A discharge cap body including the discharge tube portion, the top wall portion of the top tubular portion is formed with the outside air introduction hole, and the discharge tube portion covers the outside air introduction hole. The covering wall protrudes outward in the radial direction.

  In this discharge container, the contents etc. are blocked by the covering wall when the contents attached to the discharge port at the tip of the discharge cylinder portion try to flow to the outside air introduction hole side through the outer peripheral surface of the discharge cylinder portion. . Thereby, it can prevent that the contents etc. approach into the outside air introduction hole.

  According to the present invention, contents and the like can be prevented from entering the outside air introduction hole.

It is sectional drawing of the discharge container which concerns on embodiment of this invention. It is a figure of the board | substrate part in the obstruction board part with which the discharge container which concerns on embodiment of this invention is equipped, Comprising: (a) is a top view, (b) is sectional drawing which follows the AA line of (a). . It is a figure of the support plate part in the obstruction board part with which the discharge container concerning the embodiment of the present invention is provided, (a) is a top view and (b) is a sectional view which meets the BB line of (a). (C) is sectional drawing which follows the CC line of (a). It is sectional drawing at the time of discharge of the discharge container which concerns on embodiment of this invention. It is sectional drawing of the integrally molded body which the main body cylinder and the air valve connected in the valve cylinder with which the discharge container which concerns on embodiment of this invention is equipped.

  Hereinafter, embodiments of the discharge container of the present invention will be described.

As shown in FIG. 1, the discharge container 1 according to the first embodiment of the present invention includes a flexible inner container 2 that accommodates the contents and deforms as the contents decrease, and the contents. A container body 4 having an outer container 3 that is elastically deformable while the container 2 is installed therein, a discharge cap 24 that is attached to the mouth portion 4a of the container body 4 and has a discharge port 13 for discharging the contents; An overcap 6 that is detachably disposed on the cap 24.
In this embodiment, the discharge container 1 is a foam discharge container, and the discharge cap 24 is provided with two foam members 100 for foaming the gas-liquid mixture.

  The container body 4 is formed in a bottomed cylindrical shape, the overcap 6 is formed in a topped cylindrical shape, and the container body 4 and the overcap 6 are in a state where the center axes of the container body 4 and the overcap 6 are on a common axis. It is in the state arrange | positioned. Hereinafter, this common axis is referred to as the container axis O, the overcap 6 side along the container axis O direction is referred to as the upper side, the bottom side of the container body 4 is referred to as the lower side, and the direction orthogonal to the container axis O is referred to as the radial direction. The direction that goes around the container axis O is called the circumferential direction.

  In the illustrated example, the container body 4 is a so-called Delami bottle in which the inner container 2 is detachably laminated on the inner surface of the outer container 3. The mouth part 4a of the container body 4 is a two-stage hollow circular section having an upper cylinder part 7 located on the upper side and a lower cylinder part 8 located on the lower side and having a larger diameter than the upper cylinder part 7. It is formed in a cylindrical shape.

  A male screw portion 7b is formed on the outer peripheral surface of a portion (hereinafter referred to as an outer upper tube portion) 7a formed of the outer container 3 in the upper tube portion 7. Further, in the outer upper cylindrical portion 7a, an intake hole 7c for sucking outside air is formed between the outer container 3 and the inner container 2 at a portion located below the male screw portion 7b. Further, a groove 7e is formed on the outer peripheral surface of the outer upper cylindrical portion 7a so as to penetrate the male screw portion 7b and the intake hole 7c in the container axis O direction.

The inner peripheral surface of the outer upper cylindrical portion 7a is a cylindrical surface, and a portion (hereinafter referred to as an inner upper cylindrical portion) 7d formed of the inner container 2 in the upper cylindrical portion 7 is laminated on the inner peripheral surface. Yes. Further, the upper end portion of the inner upper cylindrical portion 7d is folded back to the outer side in the radial direction and disposed on the upper end opening edge of the outer upper cylindrical portion 7a.
The container body 4 is formed, for example, by blow molding a co-extruded two-layer parison, the outer container 3 is made of, for example, polyethylene resin, and the inner container 2 is compatible with the polyethylene resin. For example, it is made of a polyamide-based synthetic resin.

  The discharge cap 24 is attached to the mouth portion 4a and the discharge cap body 5 in which the discharge port 13 is formed. The discharge cap 24 is disposed in the discharge cap body 5 to close the mouth portion 4a, and the discharge port 13 and the inner container. 2 is provided with a closing plate portion 9 in which a communication hole 9f that communicates with the interior of 2 is formed, and a valve cylinder 17 that is disposed between the discharge cap body 5 and the closing plate portion 9.

The discharge cap body 5 is erected on the top tubular portion 50 having the top wall portion 50a and the peripheral wall portion 50b, and the top wall portion 50a of the top tubular portion 50, and the discharge port 13 is formed at the tip thereof. The discharge cylinder part 51 is provided.
On the inner peripheral surface of the peripheral wall portion 50b of the top tubular portion 50, a female screw portion 5c that is screwed to the male screw portion 7b of the mouth portion 4a of the container body 4 is formed. Moreover, the lower cylinder part 8 of the opening part 4a is fitted in the airtight state in the lower end part of the surrounding wall part 50b. Thus, the intake hole 7c is prevented from communicating with the outside of the discharge container 1 from the lower side of the peripheral wall portion 50b of the top tubular portion 50 in the discharge cap body 5. In the present embodiment, the discharge cap main body 5 is attached to the container main body 4 so that the central axis of the crested cylindrical portion 50 is coaxial with the container axis O.

The top wall portion 50a of the top tubular portion 50 is formed in a ring plate shape, the discharge tube portion 51 is cylindrical, and the central axis line from the portion on the inner peripheral edge side of the opening on the upper surface of the top wall portion 50a is the container axis. It extends upward as coaxial with O. Here, two foaming members 100 are arranged in the vertical direction in the interior between the central portion in the vertical direction of the discharge cylinder portion 51 and the upper end portion.
The foam member 100 of the present embodiment includes a main body cylinder 101 fitted to the inner peripheral surface of the discharge cylinder portion 51, and a mesh-like foam element 102 provided in one end opening of the main body cylinder 101, for example. Yes. In the present embodiment, in the upper foam member 100 of the two foam members 100, the foam element 102 is provided in the upper end opening of the main body cylinder 101, and in the lower foam member 100, the foam element 102 is provided in the main body cylinder 101. It is provided in the lower end opening.
In addition, an annular air valve receiving cylinder 18 extending downward is formed on the lower surface of the top wall 50a.

  The ceiling wall 50a is formed with an outside air introduction hole 5d that penetrates in the vertical direction and communicates the inside of the discharge cap body 5 with the outside. A plurality of outside air introduction holes 5d are formed at intervals in the circumferential direction.

The closing plate portion 9 includes a substrate portion 90 attached to the mouth portion 4 a and a support plate portion 91 attached to the substrate portion 90. The substrate portion 90 and the support plate portion 91 are both disk-shaped, and are disposed in the discharge cap body 5 so that the central axis thereof is coaxial with the container axis O.
Referring to FIGS. 1 and 2, the substrate portion 90 is a disc-shaped substrate in which a through hole 9 f 1 that penetrates in the vertical direction constituting a part of the communication hole 9 f is formed in the center portion and the mouth portion 4 a is closed. A main surface portion 90a, a mounting cylinder portion 90b that protrudes upward from the outer peripheral edge of the substrate main surface portion 90a, and is fitted in the peripheral wall portion 50b of the top tubular portion 50 of the discharge cap body 5, and a mouth portion 4a, a sealing cylinder part 90c fitted into 4a, a communication cylinder part 90d projecting upward from the outer peripheral edge of the through hole 9f1 on the upper surface of the substrate main surface part 90a, and an upper end edge of the communication cylinder part 90d And a fitting protrusion 90e that protrudes upward.

  The substrate 90 further protrudes inward in the radial direction from the inner peripheral surface of the through hole 9f1, and has an aperture ring portion 90f in which the inner diameter of the inner peripheral surface is smaller than the through hole 9f1, and a lower surface of the substrate main surface 90a. And a sleeve support cylinder portion 90g protruding downward from the outer peripheral edge portion of the through hole 9f1. In the present embodiment, an adjustment cylinder 80 that regulates the flow rate of the content flowing through the communication hole 9f is fitted inside the sleeve support cylinder portion 90g.

Further, at least one outside air circulation hole 9g that penetrates in the radial direction and opens downward is formed in the mounting cylinder part 90b of the substrate part 90. In this embodiment, the outside air circulation hole 9g A plurality are formed at intervals in the circumferential direction. More specifically, in the present embodiment, the outside air circulation holes 9g extend in a range of approximately 45 degrees in the circumferential direction, and four are formed at intervals of 90 degrees in the circumferential direction in the mounting cylinder portion 90b.
Further, a plurality of first engaging protrusions 92 are formed in the circumferential direction in the region where the outside air circulation hole 9g is not formed in the mounting cylinder 90b. The first engaging protrusion 92 protrudes outward in the radial direction from a region where the outside air circulation hole 9g is not formed at the lower end of the mounting cylinder part 90b. In the present embodiment, the first engaging protrusions 92 extend in a range of approximately 45 degrees in the circumferential direction, and are formed at four intervals of 90 degrees in the circumferential direction in the mounting cylinder 90b, and between the adjacent outside air circulation holes 9g. Is located. The first engagement protrusion 92 is engaged with an engagement recess formed in the inner peripheral surface of the peripheral wall portion 50b of the top tubular portion 50 so as to be recessed outward in the radial direction. The vertical movement with respect to the top cylindrical portion 50 is restricted.

  Further, an auxiliary hole forming groove 93 having one end opened to the outside air circulation hole 9g and the other end opened upward from the tip of the fitting projection 90e is spaced apart in the circumferential direction on the substrate main surface portion 90a of the substrate portion 90. A plurality are formed. Four auxiliary hole forming grooves 93 are formed at intervals of 90 degrees in the circumferential direction, extend radially inward from each outside air circulation hole 9g, and extend upward from the communicating cylinder portion 90d to the tip of the fitting protrusion 90e. .

On the other hand, referring to FIGS. 1 and 3, the support plate portion 91 is placed on the substrate main surface portion 90a and communicates with the through hole 9f1 and penetrates in the vertical direction constituting a part of the communication hole 9f. A support plate main surface portion 91a in which a through hole 9f2 is formed, and a valve seat tube portion 91b that protrudes upward from the outer peripheral edge portion on the upper surface of the support plate main surface portion 91a.
As shown in FIG. 3 (c), the lower surface of the support plate portion 91 surrounds the through hole 9f2 from the outside in the radial direction and is fitted with the communicating cylinder portion 90d of the substrate portion 90. An annular groove 91c is formed. Further, as shown in FIG. 3B, a fitting hole 91d into which the fitting protrusion 90e is fitted is formed on the upper surface of the wall surface defining the annular groove 91c facing downward.

In the illustrated example, four fitting holes 91d are formed at intervals of 90 degrees in the circumferential direction, and four fitting protrusions 90e are formed at intervals of 90 degrees in the circumferential direction corresponding to the fitting holes 91d. Yes. Then, the fitting protrusion 90e is fitted into the fitting hole 91d, and the substrate portion 90 and the support plate portion 91 are integrated.
In the illustrated example, a bulging portion 91x that bulges upward is formed at the center of the support plate main surface portion 91a. The through hole 9f2 and the fitting hole 91d are opened upward from the upper surface of the bulging portion 91x. Further, on the upper surface of the support plate main surface portion 91a, a valve support groove 91f that is recessed downward and continuously extends over the entire circumference is formed.

Further, in the state where the substrate portion 90 and the support plate portion 91 are integrated, the support plate portion 91 is positioned away from the mounting cylinder portion 90b in the radial direction, and the outer peripheral surface of the support plate portion 91 has a diameter on the outer peripheral surface. A plurality of second engaging protrusions 94 protruding outward in the direction and inserted into the outside air circulation hole 9g are formed at intervals in the circumferential direction.
The second engagement protrusions 94 extend in a range of approximately 45 degrees in the circumferential direction, and are formed at four intervals at 90 degrees in the circumferential direction on the outer peripheral surface of the support plate main surface portion 91a, among the wall surfaces forming the outside air circulation holes 9g The upper surface facing downward is opposed from below, and the vertical movement of the support plate 91 with respect to the substrate 90 is restricted.

Here, the outside air circulation hole 9g formed in the mounting cylinder part 90b of the substrate part 90 passes through the gap between the second engagement protrusions 94 adjacent in the circumferential direction, and the second engagement protrusion in the discharge cap 24. It communicates with the space above the portion 94 and communicates with the outside air introduction hole 5d located above the space.
Further, the outside air circulation hole 9g communicates with an auxiliary hole 95 formed between the substrate portion 90 and the support plate portion 91. The auxiliary hole 95 is formed by the auxiliary hole forming groove 93, the lower surface of the support plate main surface portion 91a in the support plate portion 91, the inner peripheral surface of the annular groove 91c, and the inner peripheral surface of the fitting hole 91d. The other portion communicates with the outside air circulation hole 9g, and the other end communicates with a communication path X formed between the discharge port 13 and the communication hole 9f.

Next, the valve cylinder 17 includes a main body cylinder 35 extending along the vertical direction. The main body cylinder 35 is fitted at the lower end portion thereof to the valve support groove 91f of the support plate main surface portion 91a of the closing plate portion 9, and the upper end portion thereof is fitted into the air valve receiving cylinder 18 described above. It abuts against the wall 50a from below. The valve cylinder 17 is disposed so that the central axis of the main body cylinder 35 is coaxial with the container axis O.
Here, the inner space in the radial direction of the main body cylinder 35 constitutes a part of the communication path X described above. That is, the communication path X is configured by a space inside the main body cylinder 35 in the radial direction and a space inside the radial direction of the discharge cylinder portion 51. On the other hand, on the outer side in the radial direction of the main body cylinder 35, a space formed between the main body cylinder 35 and the inner peripheral surface of the top tubular portion 50 of the discharge cap body 5 is an intake hole 7c and an outside air introduction hole 5d. Constitutes a part of the intake passage Y communicating with each other.
The intake passage Y is a space formed between the main body cylinder 35 and the inner peripheral surface of the crested cylindrical part 50 of the discharge cap main body 5, and the second engagement protrusions 94 adjacent in the circumferential direction described above. A space between the outer air flow hole 9g, a space between the outer peripheral surface of the mouth portion 4a and the inner peripheral surface of the peripheral wall portion 50b of the top tubular portion 50, and the intake hole 7c.

  The valve cylinder 17 includes the main body cylinder 35 and a discharge valve 36 connected to the inner peripheral surface of the main body cylinder 35 so as to be elastically displaceable. The discharge valve 36 includes a plate body 40 that covers the communication hole 9 f and the auxiliary hole 95, and a connecting portion 41 that connects the plate body 40 and the main body cylinder 35. The plate body 40 is formed in a disk shape having an outer diameter larger than that of the communication hole 9f. The plate body 40 is set to have an outer diameter dimension that covers the upper opening portion of the auxiliary hole 95 together with the communication hole 9f. It contacts from above.

The connecting portion 41 extends from the outer peripheral edge portion of the plate body 40 toward the outer side in the radial direction, and connects the outer edge portion of the plate body 40 and the inner peripheral surface of the main body cylinder 35. The connecting portion 41 is configured to be elastically deformable according to the internal pressure fluctuation of the inner container 2 or the pressure due to the discharged contents, and the plate body 40 is configured to be movable upward by the elastic deformation of the connecting portion 41. . And the connection path X (communication hole 9f) is open | released by the movement of the board 40, and the content distribute | circulates in the connection path X. As shown in FIG.
Further, in the present embodiment, the auxiliary hole 95 is opened by the movement of the plate body 40, and details will be described later. However, the outside air sucked between the inner container 2 and the outer container 3 can be supplied into the communication path X. It is possible. In this embodiment, after the contents and the outside air are gas-liquid mixed in the communication path X, the gas-liquid mixture can be supplied to the foaming member 100.

  On the other hand, an annular air valve 45 is disposed on the outer peripheral surface side of the main body cylinder 35. Here, the valve seat cylinder part 91b formed in the support plate part 91 is located in the intake passage Y, and the air valve 45 is separated from the outside air introduction hole 5d from below the hole 5d. The air valve 45 is movable (movable) in the vertical direction between the valve seat tube portion 91b and the outside air introduction hole 5d in an unconstrained state.

  In the present embodiment, the air valve 45 opens and closes the outside air introduction hole 5d according to a change in the internal pressure between the inner container 2 and the outer container 3, thereby connecting and blocking the intake hole 7c and the outside air introduction hole 5d. Switch.

In the air valve 45 in the present embodiment, the weakened portion 48 is formed of an integrally formed body of the air valve 45 and the main body cylinder 35 that is connected to the outer peripheral surface of the main body cylinder 35 in the valve cylinder body 17 via a weakened weakened section 48. It is broken and separated from the main body cylinder 35, and the weakened portion 48 after the breakage remains on the outer peripheral surface of the main body cylinder 35. Referring to FIG. 5, an integrally molded body in which the main body cylinder 35 and the air valve 45 are connected is shown.
The integrally molded body is assembled from above into the support plate portion 91 of the closing plate portion 9 during assembly. At the time of incorporation, it is preferable that the air valve 45 is separated from the main body cylinder 35 by pressing the lower surface of the air valve 45 with the valve seat cylinder portion 91b.

  Moreover, in this embodiment, while being supported by the communication path X between the discharge port 13 and the communication hole 9f so as to be elastically displaceable, the discharge valve 36 is pressed toward the lower side inside the container body. A pressing body 60 is provided. Specifically, the pressing body 60 is disposed on the inner peripheral surface of the lower end portion of the discharge cylinder portion 51.

  The pressing body 60 includes a rod-shaped pressing main body 61 that extends in the vertical direction along the container axis O, and a connecting portion 62 that connects the pressing main body 61 and the discharge cylinder portion 51. The lower end portion of the pressing body 61 is formed in a spherical shape protruding downward, and is in contact with the center of the plate body 40 of the discharge valve 36 from above. The connecting portion 62 extends from the outer peripheral surface of the pressing main body 61 toward the outer side in the radial direction, and is connected to the inner peripheral surface of the discharge cylinder portion 51. The connecting portion 62 is configured to be elastically deformable in the vertical direction according to the opening / closing operation of the discharge valve 36 or the like. Further, on the upper surface of the plate body 40 of the discharge valve 36, a protruding spherical recess is formed on the lower side where the front end of the pressing body 61 is supported.

On the other hand, in the present embodiment, a covering wall 70 that covers the outside air introduction hole 5d is provided on the outer peripheral surface of the discharge cylinder portion 51 so as to protrude outward in the radial direction. The covering wall 70 of the present embodiment is formed in an annular plate shape and is formed integrally with the discharge cylinder portion 51.
Here, in this embodiment, the overcap 6 has a lower cylindrical portion 6a whose lower end portion is externally fitted to the peripheral wall portion 50b of the discharge cap body 5, and an annular shape projecting radially inward from the upper end portion of the lower cylindrical portion 6a. Connecting plate 6b, an upper tube portion 6c extending upward from the radially inner end of the connecting plate 6b and covering the discharge tube portion 51 from the radially outer side, and a ceiling for closing the upper end opening of the upper tube portion 6c. A plate portion 6d. A vertical space is formed between the connecting plate 6b of the overcap 6 and the top wall portion 50a of the discharge cap body 5, and the covering wall 70 is between the connecting plate 6b and the top wall portion 50a. It extends along the connecting plate 6b and the top wall 50a. The covering wall 70 is elastically displaceable in the vertical direction.

  The covering wall 70 extends from the lower end portion of the outer peripheral surface of the discharge cylinder portion 51 to the outside in the radial direction and above the radially outer end portion of the top wall portion 50a of the discharge cap body 5, and more specifically, the covering wall. The radially outer end of 70 gradually curves downward and extends toward the radially outer side.

The covering wall 70 of the present embodiment is in a state of being curved toward the distal end side of the discharge cylinder portion 51 immediately after molding as in the state indicated by the two-dot chain line in FIG. The overcap 6 is attached to the discharge cap main body 5 and is bent downward by the connecting plate 6b of the overcap 6 so that the overcap 6 is discharged along the radial direction. Even when the cap body 5 is removed, it does not return to the state of being curved toward the tip end side of the discharge cylinder portion 51 just after molding.
In the present embodiment, the covering wall 70 is bent downward by the connecting plate 6b when the overcap 6 is mounted, but immediately after the forming of the covering wall 70 indicated by the two-dot chain line in FIG. In the state, the covering wall 70 may be plastically deformed into a state of extending in the radial direction or a state of being curved downward by, for example, applying heat to the covering wall 70 after molding or after forming.

  Next, a typical method of using the discharge container 1 according to the present embodiment described above will be described with reference to FIG.

When discharging the contents stored in the inner container 2 of the container body 4, in the discharge container 1 of the present embodiment, the overcap 6 is first opened and, for example, the discharge posture is such that the discharge port 13 faces downward. Thus, the outer container 3 of the container body 4 is squeezed (elastically deformed).
Thereby, the inner container 2 is deformed together with the outer container 3 to reduce the volume. Then, the internal pressure of the inner container 2 rises along with this volume reduction deformation, and with this rise in internal pressure, the connecting portion 41 of the discharge valve 36 is elastically deformed, and the plate body 40 of the support plate portion 91 of the closing plate portion 9 is deformed. Separating from the bulging portion 91x toward the discharge port 13 side, the communication hole 9f is opened and communicates with the communication path X. Thereby, the inside of the inner container 2 and the discharge port 13 communicate with each other, and the contents stored in the inner container 2 are discharged from the discharge port 13 through the communication path X. Here, the pressing body 60 is elastically displaced toward the discharge port 13 as the plate body 40 is displaced. The contents and the like that have flowed into the communication path X flow toward the discharge port 13 through the outer side of the plate body 40 in the radial direction.

  At this time, the outer container 3 is squeezed (elastically deformed) so that a positive pressure is applied between the inner container 2 and the outer container 3, and the air between the inner container 2 and the outer container 3 is Then, the air tends to flow from the outside air introduction hole 5d through the intake passage Y through the intake hole 7c. Here, the air valve 45 seated on the valve seat tube portion 91b in the middle of the intake passage Y receives pressure and moves to the outside air introduction hole 5d side, and closes the outside air introduction hole 5d. As a result, the air whose discharge from the outside air introduction hole 5 d is restricted flows through the auxiliary hole 95 to the communication path X. Thus, in this discharge container 1, gas-liquid mixing is performed in the communication path X, and the gas-liquid mixture is suitably foamed by the foaming member 100 provided in the discharge cylinder portion 51.

Thereafter, when the internal pressure of the inner container 2 decreases, the connecting portion 41 is restored and deformed by the elastic restoring force, the communication hole 9f is closed by the plate body 40, and the communication between the communication path X and the inside of the inner container 2 is blocked. The inner container 2 is sealed. At this time, the pressing body 60 is restored and deformed by the elastic restoring force to return to the state where the plate body 40 is pressed, and the closed state of the plate body 40 is maintained.
Further, when the above-described squeeze deformation is released, the outer container 3 tries to restore and deform. At this time, the negative pressure generated between the outer container 3 and the inner container 2 acts on the air valve 45 through the intake hole 7c, so that the air valve 45 opens toward the intake hole 7c and the intake hole 7c The outside communicates with the outside, and the outside air is sucked between the outer container 3 and the inner container 2 through the intake passage Y through the intake hole 7c. And the volume reduction shape of the inner container 2 is hold | maintained.

When the outer container 3 of the container body 4 is squeezed again from this state, the air valve 45 moves to the outside air introduction hole 5d side and closes the outside air introduction hole 5d. Then, the internal pressure between the outer container 3 and the inner container 2 rises, and the inner container 2 is deformed and deformed by the increase in the internal pressure. By reducing the volume of the inner container 2, the contents are discharged in the same manner as described above. As described above, even if the squeezed deformed outer container 3 is restored and deformed, the inner container 2 is reduced in volume as the contents decrease, and the outside air (enclosed together with the contents) is contained inside the inner container 2. (Except outside air) is prevented from flowing in. Thereby, deterioration of the content is prevented and the preservability is improved.
Note that the overcap 6 is attached to the ejection cap 24 after ejection.

  Here, in the discharge container 1 of the present embodiment, since the covering wall 70 covering the outside air introduction hole 5d is provided on the outer peripheral surface of the discharge cylinder portion 51 toward the outer side in the radial direction, the content from the discharge port 13 Even if the contents remain at the discharge port 13 after discharging the object, the covering wall 70 is located between the discharge port 13 and the outside air introduction hole 5d outside the discharge cap body 5. Thus, the contents remaining in the discharge port 13 are blocked from entering the outside air introduction hole 5d through the outer peripheral surface of the discharge cylinder portion 51.

  As described above, according to the discharge container 1 of the present embodiment, the contents and the like attached to the discharge port 13 at the tip of the discharge cylinder portion 51 pass through the outer peripheral surface of the discharge cylinder portion 51 and are on the outside air introduction hole 5d side. The contents and the like are dammed up by the covering wall 70 when they are about to flow. Thereby, it is possible to prevent contents and the like from entering the outside air introduction hole 5d.

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

  For example, the container body 4 in the above embodiment is a so-called Delami bottle in which the inner container 2 is detachably laminated on the inner surface of the outer container 3, but is not limited to this. A double container in which the outer peripheral surface and the inner peripheral surface of the outer container 3 are formed separately may be used.

  Moreover, although the said embodiment demonstrated the example in which the discharge container 1 is a foam discharge container, it may not be provided with the foaming member 100 and the auxiliary hole 95, and may be a discharge container which does not gas-liquid mix the contents and gas. Absent.

  Moreover, in the said embodiment, although the internal thread part 5c of the discharge cap main body 5 of the discharge cap 24 was screwed by the external thread part 7b of the opening | mouth part 4a of the container main body 4, it is not limited to this. . That is, instead of using the female screw portion 5c and the male screw portion 7b, for example, by forming fitting protrusions on the mouth portion 4a of the container body 4 and the discharge cap body 5 and fitting them undercut, 24 may be attached to the mouth 4a.

  Moreover, although the closing plate part 9 mentioned above was set as the structure provided with the board | substrate part 90 and the support plate part 91, you may comprise with one member.

In the above embodiment, the discharge valve 36 is a valve that communicates and blocks the communication hole 9f and the auxiliary hole 95 and the communication path X. However, the communication hole 9f and the auxiliary hole 95 are opened and closed by separate valves. It may be a configuration.
Moreover, although the covering wall 70 of the said embodiment was formed in the annular plate shape and formed integrally with the discharge cylinder part 51, according to the formation position of the external air introduction hole 5d, the covering wall 70 is circumferentially spaced. A plurality may be formed with a gap. The covering wall 70 may be provided separately from the discharge cap 24 without being formed integrally with the discharge cylinder portion 51.
Further, when the overcap 6 is attached to the discharge cap 24 by forming a slit extending inward from the radially outer end portion in the covering wall 70 while the covering wall 70 is formed in an annular plate shape, The covering wall 70 may be preferably fitted between the overcap 6 and the discharge cap 24.
Further, in the above-described embodiment, an example has been described in which the covering wall 70 extends along the radial direction and the radially outer end thereof extends and curves downward downward as it goes outward in the radial direction. The shape may be any shape as long as it covers the introduction hole 5d. For example, the shape may be curved and extended upward as it goes radially outward, or may be linearly inclined and extended upward or downward as it extends radially outward. .
Furthermore, in the said embodiment, although the covering wall 70 is the aspect separated in the up-down direction from the top wall part 50a in which the external air introduction hole 5d was formed as a whole, the covering wall 70 has the radial direction outer side edge part, It may be in contact with or close to the top wall 50a. In this case, it is possible to more reliably prevent the contents and the like from entering the outside air introduction hole 5d.

DESCRIPTION OF SYMBOLS 1 Discharge container 2 Inner container 3 Outer container 4 Container main body 4a Mouth part 5 Discharge cap main body 5d Outside air introduction hole 7c Intake hole 9f Communication hole 13 Discharge port 24 Discharge cap 36 Discharge valve (auxiliary valve)
45 Air valve 50 Cylinder part 50a Top wall part 51 Discharge cylinder part 70 Covered wall

Claims (1)

A container main body including a flexible inner container that accommodates contents and squeezes and deforms as the contents decrease, and an outer container in which the inner container is installed;
A discharge cap mounted on the mouth portion of the container body and formed with a discharge port for discharging the contents;
The outer container is formed with an intake hole for sucking outside air between the inner container,
The discharge cap includes
An outside air introduction hole that communicates the outside and the intake hole, and a communication hole that communicates the discharge port and the inside of the inner container are formed,
An air valve for switching communication and blocking between the intake hole and the outside air introduction hole;
A discharge valve for opening and closing the communication hole;
Is provided,
The discharge cap includes a discharge cap body including a top cylindrical portion, and a discharge cylinder portion standing on the top wall portion of the top cylindrical portion and having the discharge port formed at the tip thereof.
In the top wall portion of the top tubular portion, the outside air introduction hole is formed,
A discharge container characterized in that a coating wall that covers the outside air introduction hole protrudes radially outward from the discharge cylinder portion.

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