JP2017178435A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container capable of preventing occurrence of loud tones when a compressed trunk part is restored.SOLUTION: A discharge container comprises: a container body 10; an inside plug 30 having a content outflow hole 31a; a discharge cap 20 covering the inside plug 30; a cylindrical partition wall 40 disposed between the inside plug 30 and the top wall part 21 of the discharge cap 20 to partition-form a flow channel 41; and a check valve 50 opening or closing the flow channel 41. The container body 10 is a double container comprising an inner layer body 14 and an outer layer body 13 having an outside air introduction hole 15. The outside air introduction hole 15 is capable of communicating with the outside of the discharge cap 20 via the suction hole 24 provided at the top wall part 21 of the cap 20. On the outer peripheral face of the partition wall 40, a valve body 60 for outside air which has a flange shape and is capable of vertically moving the outer peripheral edge of the valve body is provided integrally, and a thin-walled annular members 70, 170 are arranged between the valve body 60 for outside air and the top wall part 21.SELECTED DRAWING: Figure 1

Description

  The present invention includes a container body made of a double container that contains contents and has an outside air introduction hole, a discharge cap that is provided with a discharge port and a suction hole for the contents, and air from the outside air introduction hole to the suction hole. The present invention relates to a discharge container having an outside air valve body that can prevent outflow while allowing air to flow from an intake hole to an outside air introduction hole.

  Conventionally, as described in, for example, Patent Document 1, a container main body composed of a double container that contains contents and has an outside air introduction hole (through opening) in the mouth, and an outflow hole (pouring out) of the contents An inner cap with an opening), a discharge cap with a discharge port for contents and an intake hole (outside air introduction hole), and a flow path that is mounted between the inner plug and the discharge cap and reaches the discharge port from the outflow hole A cylindrical partition wall that forms a partition, a check valve that opens and closes a flow path that reaches the discharge port from the outflow hole, and a valve body for outside air that forms a flange shape integrally provided on the outer peripheral surface of the partition wall. There are known discharge containers.

  In a discharge container having such a configuration, after the body portion of the container body is pressed (squeezed) to discharge the contents, when the pressure on the body portion is released, the check valve is closed and the discharge port opens to the container body. Inflow of the contents and the outside air directed to the outside is prevented, and the outside air valve body is opened, and the outside air is passed between the outer layer body and the inner layer body through the outside air introduction hole provided in the mouth from the intake hole provided in the discharge cap. The outer layer can be restored to its original shape while introducing and reducing the volume of the inner layer. Accordingly, the contents can be discharged without being replaced with the outside air, whereby the contents remaining inside the container main body are hardly touched with air, and deterioration and alteration can be suppressed.

JP2015-227175A

  By the way, in the discharge container as described above, when the outer layer body is restored to the original shape after the contents are discharged, a high sound is generated by air passing through the gap between the valve body and the valve seat constituting the valve body for outside air. It may occur, and it was harsh.

  Therefore, an object of the present invention is to provide a discharge container capable of preventing the generation of a high sound when the squeezed body portion is restored.

The present invention has been made in order to solve the above problems, and the discharge container of the present invention includes a container body having a cylindrical mouth portion and a trunk portion connected to the mouth portion,
An inner plug that has an outflow hole for contents and covers the opening of the mouth;
A discharge cap connected to the outflow hole in the top wall, and a discharge cap attached to the opening and covering the inner plug;
A cylindrical partition wall that is disposed between the inner plug and the top wall portion of the discharge cap, and that defines a flow path that reaches the discharge port from the outflow hole;
A check valve for opening and closing a flow path from the outflow hole to the discharge port,
The container main body includes a volume-deformable inner layer body that contains the contents, and an outer layer body that accommodates the inner layer body inside and has an outside air introduction hole for introducing air between the inner layer body and the inner layer body. A double container comprising
The outside air introduction hole can communicate with the outside of the discharge cap through an intake hole provided in a top wall portion of the discharge cap,
On the outer peripheral surface of the partition wall, an external air valve body that forms a flange shape and can move up and down its outer peripheral edge by elastic deformation is integrally provided,
A thin annular member is disposed between the outside air valve body and the top wall portion.

  Further, in the discharge container according to the present invention, the annular member has a plurality of protruding pieces that protrude radially inward from the inner edge of the annular member and that are provided at intervals in the circumferential direction. preferable.

  Moreover, in the discharge container which concerns on this invention, it is preferable that the front-end | tip part of these several protrusions is contacting the outer peripheral surface of the said partition wall.

  In the discharge container according to the present invention, the inner diameter of the annular member is larger than the outer diameter of the partition wall, and ribs intermittent in the circumferential direction are provided on the outer peripheral surface of the partition wall. Is preferred.

  ADVANTAGE OF THE INVENTION According to this invention, the discharge container which can prevent generation | occurrence | production of a high sound when the compressed trunk | drum restore | restores can be provided.

It is sectional drawing in the side view of the principal part of the discharge container which is one Embodiment of this invention. (A), (b) is a top view which illustrates an annular member. (A) is the partial expanded sectional view at the time of discharging the contents in the discharge container of FIG. 1, (b) is the partial expanded sectional view at the time of the squeezed trunk | drum restoring | restoring. (A) is the partial expanded sectional view at the time of discharging the contents in the discharge container which is other embodiments of the present invention, and (b) is the partially expanded sectional view at the time of restoring the squeezed trunk part It is.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. In this specification, “upper” is the side where the discharge cap is positioned with respect to the container body when the discharge container is placed on a horizontal plane, and “lower” is the opposite side.

  As shown in FIG. 1, a discharge container 1 according to an embodiment of the present invention includes a container body 10, a discharge cap 20, an inner plug 30, a partition wall 40, a check valve 50, an outside air valve body 60, and an annular shape. A member 70 is provided. The discharge container 1 can accommodate various contents.

  Although not shown in detail, the container body 10 has a bottle shape having a mouth part 11 and a body part 12.

  The mouth portion 11 is formed in a cylindrical shape, and a male screw 11a for mounting the discharge cap 20 is integrally provided on the outer peripheral surface thereof. Further, a cylindrical sealing step portion 11 b having a diameter larger than that of the mouth portion 11 is integrally provided at the base portion of the mouth portion 11.

  The body portion 12 is connected to the lower portion of the mouth portion 11 through a sealing step portion 11b, and the inside thereof is a content storage chamber 12a.

  In the present embodiment, the container body 10 is configured as a double container including an outer layer body 13 and an inner layer body 14 accommodated inside the outer layer body 13. In this example, the container body 10 is a delamination container (delamination container) in which the inner layer body 14 is detachably laminated on the inner surface of the outer layer body 13 as described below. However, the inner layer body 14 is not limited thereto. It is good also as a built-in type double container which built in the inside of outer layer body 13.

  The inner layer body 14 is formed in a thin-walled bag shape that can be deformed and deformed by a synthetic resin material, for example, and is laminated on the inner surface of the outer layer body 13 so as to be peelable. The inner layer body 14 extends to the opening end of the mouth portion 11 of the container body 10 and opens at the opening end, and the inside thereof is the above-described storage chamber 12a.

  The outer layer body 13 is formed in a bottle shape having a predetermined rigidity by using, for example, a synthetic resin material, and constitutes an outer shell of the container body 10. A portion corresponding to the body portion 12 of the outer layer body 13 can be pressed (squeezed) and has a restoring property to the original shape. An outer air introduction hole 15 that penetrates the outer layer body 13 in the radial direction and communicates between the inner layer body 14 and the outer layer body 13 is provided in a portion corresponding to the mouth portion 11 of the outer layer body 13. In the case shown in the figure, the portion corresponding to the mouth portion 11 of the outer layer body 13 is provided with two outside air introduction holes 15 facing each other with the axis line therebetween, but at least one outside air introduction hole 15 is provided. It only has to be.

  The container body 10 extends between the outer layer body 13 and the inner layer body 14 in the vertical direction from the mouth portion 11 toward the bottom portion of the trunk portion 12, and the inner layer body 14 is partially extended with respect to the outer layer body 13. It can also be set as the structure provided with the several contact bonding layer (not shown) adhere | attached. In addition, the container body 10 may have a configuration in which barrier layers having a barrier property against oxygen or water vapor are stacked and a configuration in which the barrier property is enhanced by various coatings, for example.

  The discharge cap 20 is attached to the mouth portion 11 of the container body 10. The discharge cap 20 is formed of a synthetic resin material into a top tube shape including a top wall portion 21 that covers the opening of the mouth portion 11 and a cylindrical tube wall portion 22 that covers the outer periphery of the mouth portion 11. A female screw 22 a is provided on the inner peripheral surface of the cylindrical wall portion 22, and the discharge screw 20 is connected to the male screw 11 a provided on the outer peripheral surface of the mouth portion 11. It is designed to be attached to the part 11. The discharge cap 20 may be attached to the mouth portion 11 by undercut or the like.

  The top wall 21 is integrally provided with a discharge cylinder 21 a that protrudes upward from the top wall 21. The discharge cylinder 21a is arranged so as to deviate from the axial center of the substantially circular top wall portion 21, and the inside thereof is a discharge port 23 for contents.

  The inner plug 30 is attached to the inside of the discharge cap 20 and attached to the opening end of the mouth portion 11 so as to cover the opening of the mouth portion 11. The inner plug 30 is made of a synthetic resin, and includes a main body wall portion 31 disposed in the discharge cap 20 at an axial interval with respect to the top wall portion 21, and an outer peripheral edge of the main body wall portion 31. And a support cylinder portion 32 extending toward the top wall portion 21 side.

  The upper end of the support cylinder portion 32 abuts on the lower surface of the top wall portion 21 and is fitted to the inner surface of the cylinder wall portion 22 at the outer peripheral portion, whereby the inner plug 30 is fixedly held inside the discharge cap 20. . An annular seal tube 33 is integrally provided on the lower surface of the main body wall portion 31, and the seal tube 33 is fitted to the inner peripheral surface of the mouth portion 11. Further, the inner plug 30 covers the opening of the mouth portion 11. The inner plug 30 is covered with the discharge cap 20.

  An outlet hole 31 a for contents is provided at the center of the body wall 31 of the inner plug 30. This outflow hole 31 a penetrates the main body wall portion 31 of the inner plug 30 on the front and back, and can communicate with the discharge port 23 provided in the top wall portion 21 of the discharge cap 20. The contents stored in the storage chamber 12a can flow out toward the discharge port 23 through the outflow hole 31a. On the upper surface of the body wall portion 31 of the inner plug 30, an annular groove 31 b that surrounds the outflow hole 31 a is provided on the radially inner side of the support cylinder portion 32.

  A partition wall 40 is mounted between the top wall portion 21 of the discharge cap 20 and the main body wall portion 31 of the inner plug 30. The partition wall 40 is formed in a cylindrical shape from, for example, low-density polyethylene (soft polyethylene), and one end of the partition wall 40 is fitted into an annular groove 21 b provided on the lower surface of the top wall portion 21, and the other end is the inner plug 30. The main body wall portion 31 is fixedly held between the top wall portion 21 and the main body wall portion 31 by fitting into an annular groove 31 b provided on the upper surface of the main body wall portion 31. In the space between the top wall portion 21 of the discharge cap 20 and the main body wall portion 31 of the inner plug 30, the partition wall 40 is provided in the top wall portion 21 from the outflow hole 31 a provided in the main body wall portion 31. A flow path (inner portion of the partition wall 40) 41 reaching the discharge port 23 is formed in a partition.

  The check valve 50 is provided between the top wall portion 21 of the discharge cap 20 and the main body wall portion 31 of the inner plug 30 so as to be located on the radially inner side of the partition wall 40, that is, inside the flow path 41. In the illustrated case, the check valve 50 is formed integrally with the partition wall 40 by the same material as the partition wall 40. The check valve 50 includes a valve body 50 a formed in a circular plate shape capable of opening and closing an outflow hole 31 a provided in the body wall portion 31 of the inner plug 30, and an inner periphery of the partition wall 40. And three elastic arms 50b integrally connected to the surface. In this embodiment, the check valve 50 is in the form of a so-called three-point valve in which the valve body 50a is supported by the three elastic arms 50b, but the valve body 50a is supported by a single hinge. Other conventional check valves such as valves can be used.

  Between the discharge cap 20 and the mouth portion 11, it communicates with the outside air introduction hole 15 provided in the mouth portion 11, and the air hole 34 provided in the inner plug 30 and the suction hole 24 provided in the top wall portion 21. An air flow path R that can communicate with the outside of the discharge cap 20 is defined. The lower end of the cylindrical wall portion 22 of the discharge cap 20 is in airtight contact with the sealing step portion 11b over the entire circumference to seal the air flow path R. In addition, a slit extending in the vertical direction is formed in the male screw 11a, and in the portion where the male screw 11a and the female screw 22a are provided, a part of the air flow path R is configured by this slit. In addition, you may make it distribute | circulate air along the external thread 11a and the internal thread 22a, without providing a slit in the external thread 11a.

  On the outer peripheral surface of the partition wall 40, an outside air valve body 60 having a thin circular flange shape is integrally provided with the same material as the partition wall 40. The outside air valve body 60 is configured to be able to move up and down its outer peripheral edge 61 by elastic deformation. A thin annular member 70 is disposed between the outside air valve body 60 and the top wall portion 21.

  The annular member 70 is configured by, for example, a flat thin synthetic resin sheet-like member or film. In this example, as shown in FIG. 2A, the annular member 70 has twelve protruding pieces 71 that protrude radially inward from the inner edge of the annular member 70. The inner diameter D1 of the tip 71a of the projecting piece 71 is smaller than the outer diameter of the outer peripheral surface of the partition wall 40. The projecting pieces 71 are evenly arranged at intervals in the circumferential direction, and the position and posture of the annular member 70 are stabilized by bringing the tip 71a of the projecting piece 71 into contact with the outer peripheral surface of the partition wall 40. . The annular member 70 can be elastically deformed up and down with the tip 71a of the projecting piece 71 as a fulcrum, and can be elastically displaced following the vertical movement of the outdoor air valve body 60. The annular member 70 does not necessarily have to contact the distal end portion 71a of the protruding piece 71 with the outer peripheral surface of the partition wall 40. That is, the inner diameter D1 of the tip 71a of the projecting piece 71 may be larger than the outer diameter of the outer peripheral surface of the partition wall 40. Even in this case, by providing the projecting piece 71, the annular member 70 and the partition wall 40 Since the gap with the outer peripheral surface becomes small, the position and posture of the annular member 70 are easily stabilized. Here, FIG. 2B shows another example of the annular member 170, and the inner edge and the outer edge of the annular member 170 are substantially circular as shown. Further, the inner diameter D2 is larger than the outer diameter of the outer peripheral surface of the partition wall 40. When the annular member 170 of FIG. 2B is used, the rib 40a intermittent in the circumferential direction is provided on the outer peripheral surface of the partition wall 40 as shown in FIGS. The position and posture of the annular member 170 can be stabilized by the same action as that of the projecting piece 71. In this case, the inner edge of the annular member 170 may be in contact with the rib 40a, or a slight gap may be provided between the inner edge of the annular member 170 and the rib 40a. The shapes of the annular members 70 and 170 are not limited to the shapes shown in FIGS.

  As shown in FIG. 1, the discharge cap 20 can be configured to include a lid 80. In the illustrated case, the lid body 80, which is also called an overcap, is formed in a cylindrical shape with the same diameter as the discharge cap 20, and is pivotally connected to the top wall portion 21 of the discharge cap 20 by a hinge 81. The discharge cylinder 21 a can be covered together with the top wall portion 21. A cylindrical seal wall 82 is integrally provided on the inner surface of the lid 80, and when the lid 80 is closed, the seal wall 82 is fitted inside the discharge cylinder 21a so as to close the discharge port 23. It has become. On the side facing the hinge 81 of the lid 80, a knob 83 serving as a finger hook when the lid 80 is opened is provided.

  The lid 80 is not limited to be integrally connected to the discharge cap 20 by the hinge 81, but may be configured to be formed separately from the discharge cap 20 and attached to the discharge cap 20 by screwing or undercutting. .

  In the discharge container 1 having such a configuration, the check valve 50 is opened by squeezing the body 12 while tilting the container body 10 so that the discharge cylinder 21a faces downward with the lid 80 opened. The contents inside the storage chamber 12a can flow out from the outflow hole 31a to the discharge port 23 via the flow path 41, and can be discharged from the discharge port 23 to the outside. When the pressure between the outer layer body 13 and the inner layer body 14 is increased by the pressing of the body portion 12, the outside air valve body 60 is pressed toward the top wall portion 21 as shown in FIG. 61 will be in the state which presses the annular member 70 against the top wall part 21, and the inlet hole 24 is closed. In the closed state of the intake hole 24, the upper surface of the annular member 70 is in contact with the lower surface of the top wall portion 21, and the outer peripheral edge 61 of the outside air valve body 60 is in contact with the lower surface of the annular member 70. Since the air existing between the outer layer body 13 and the inner layer body 14 does not leak to the outside by closing the intake hole 24, the inner layer body 14 is squeezed by squeezing the body 12 of the outer layer body 13. By pressing, the contents can be pushed out toward the outflow hole 31a.

  On the other hand, when the squeeze of the body portion 12 is released after the contents are discharged, the outflow hole 31a is closed by the check valve 50 and the outer layer body 13 is restored to the original shape as shown in FIG. The external air valve body 60 is moved downward (in a direction away from the top wall portion 21) by the negative pressure generated when the air is discharged, and air (outside air) is introduced from the intake hole 24. The air introduced from the intake hole 24 passes through at least one of the gap between the annular member 70 and the top wall portion 21 and the gap between the annular member 70 and the outside air valve body 60. Then, the air flows toward the vent hole 34 and flows between the inner layer body 14 and the outer layer body 13 via the air flow path R and the outside air introduction hole 15. In the case of this example, through the gap between the partition wall 40 and the annular member 70 formed between the projecting pieces 71 adjacent in the circumferential direction, the lower side of the annular member 70 (the annular member 70) from the intake hole 24 side. And the outside air valve body 60). By introducing the outside air between the inner layer body 14 and the outer layer body 13, the outer layer body 13 can be restored to the original shape while the inner layer body 14 is deformed and reduced in volume. For this reason, it can suppress that external air is introduce | transduced into the storage chamber 12a, can reduce the contact with the air of the content accommodated in the container main body 10, and can suppress the quality change and deterioration of the content.

  In the discharge container 1 of the present embodiment, the flow of air is changed as compared with the case where the annular member 70 is not provided because the annular member 70 is disposed between the outside air valve body 60 and the top wall portion 21. In addition, the vibration of the outside air valve body 60 is suppressed by contact with the annular member 70. Thereby, generation | occurrence | production of a high sound when the outer layer body 13 decompress | restores to an original shape can be suppressed.

  Further, in the discharge container 1 of the present embodiment, the distal end 71a of the projecting piece 71 is brought into contact with the outer peripheral surface of the partition wall 40 to stabilize the position and posture of the annular member 70. The vibration suppression effect of 60 can be enhanced, and generation of high sound can be more effectively prevented.

  Here, Fig.4 (a) has shown the mode at the time of discharging the content at the time of using the annular member 170 shown in FIG.2 (b), FIG.4 (b) shows discharge of the content. A state when the squeeze of the body portion 12 is released later is shown. Also in this example, when the contents are discharged, that is, when the pressure between the outer layer body 13 and the inner layer body 14 is increased by the pressure of the body portion 12, as shown in FIG. 60 is pressed to the top wall 21 side, and the outer peripheral edge 61 presses the annular member 170 against the top wall 21, and the intake hole 24 is closed. When the squeeze of the body portion 12 is released after the contents are discharged, the outside air valve body 60 is lowered by the negative pressure generated when the outer layer body 13 is restored to the original shape as shown in FIG. Air (outside air) is introduced from the intake hole 24 by moving in the direction away from the top wall portion 21. The air introduced from the intake hole 24 passes through at least one of the gap between the annular member 170 and the top wall portion 21 and the gap between the annular member 170 and the outside air valve body 60. Then, the air flows toward the vent hole 34 and flows between the inner layer body 14 and the outer layer body 13 via the air flow path R and the outside air introduction hole 15. Also in this example, since the annular member 170 is disposed between the outside air valve body 60 and the top wall portion 21, the air flow changes compared to the case where the annular member 170 is not provided, and the outside air valve body 60. Since the vibration of the outside air valve body 60 is suppressed by contacting the annular member 170, the generation of a high sound due to the vibration of the outside air valve body 60 can be suppressed.

  In the case of this example, since the inner diameter D2 of the annular member 170 is larger than the outer diameter of the partition wall 40, the annular member 170 is movable in the axial direction, and easily follows the movement of the valve element 60 for outside air. be able to. In the case of this example, the inner diameter D2 of the annular member 170 is larger than the outer diameter of the partition wall 40, and ribs 40a that are intermittent in the circumferential direction are also provided, so the gap between the partition wall 40 and the annular member 170 is provided. A gap is formed, and air can move from the intake hole 24 side to the lower side of the annular member 170 (between the annular member 170 and the outside air valve body 60) through the gap. In addition, as described above, in this example, by providing the rib 40a intermittent in the circumferential direction on the outer peripheral surface of the partition wall 40, the gap with the annular member 170 is reduced, and the position and posture of the annular member 170 are stabilized. Can do.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  Moreover, in the said embodiment, the discharge cap 20 shall be formed integrally with the top wall part 21 and the cylinder wall part 22, and the inside plug 30 shall be formed separately from the discharge cap 20. FIG. However, the present invention is not limited thereto, and the discharge cap 20 is formed by combining the top wall portion 21 and the cylindrical wall portion 22 formed separately from each other, and the inner plug 30 is connected to the cylindrical wall portion 22 of the discharge cap 20. It may be formed integrally.

DESCRIPTION OF SYMBOLS 1 Discharge container 10 Container main body 11 Mouth part 11a Male thread 11b Sealing step part 12 Body part 12a Storage chamber 13 Outer layer body 14 Inner layer body 15 Outer air introduction hole 20 Discharge cap 21 Top wall part 21a Discharge cylinder 21b Annular groove 22 Cylindrical wall part 22a Female screw 23 Discharge port 24 Air intake hole 30 Inner plug 31 Body wall part 31a Outflow hole 31b Annular groove 32 Support cylinder part 33 Seal cylinder 34 Ventilation hole 40 Partition wall 40a Rib 41 Channel 50 Check valve 50a Valve body 50b Elastic arm 60 Outside air Valve body 61 Outer peripheral edge portion 70, 170 of outer air valve body 71 annular member 71 projecting piece 71a tip portion 80 lid body 81 hinge 82 seal wall 83 knob D1 and D2 inner diameter R air flow path

Claims (4)

A container body having a cylindrical mouth portion and a trunk portion connected to the mouth portion;
An inner plug that has an outflow hole for contents and covers the opening of the mouth;
A discharge cap connected to the outflow hole in the top wall, and a discharge cap attached to the opening and covering the inner plug;
A cylindrical partition wall that is disposed between the inner plug and the top wall portion of the discharge cap, and that defines a flow path that reaches the discharge port from the outflow hole;
A check valve for opening and closing a flow path from the outflow hole to the discharge port,
The container main body includes a volume-deformable inner layer body that contains the contents, and an outer layer body that accommodates the inner layer body inside and has an outside air introduction hole for introducing air between the inner layer body and the inner layer body. A double container comprising
The outside air introduction hole can communicate with the outside of the discharge cap through an intake hole provided in a top wall portion of the discharge cap,
On the outer peripheral surface of the partition wall, an external air valve body that forms a flange shape and can move up and down its outer peripheral edge by elastic deformation is integrally provided,
A discharge container, wherein a thin annular member is disposed between the outside air valve body and the top wall portion.   2. The discharge container according to claim 1, wherein the annular member has a plurality of projecting pieces that protrude radially inward from an inner edge of the annular member and are provided at intervals in the circumferential direction.   The discharge container according to claim 2, wherein tips of the plurality of projecting pieces are in contact with an outer peripheral surface of the partition wall.   The discharge container according to claim 1, wherein an inner diameter of the annular member is larger than an outer diameter of the partition wall, and a rib intermittently provided in a circumferential direction is provided on an outer peripheral surface of the partition wall.

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