JP2017132530A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container capable of spreading the range of a molding condition in a check valve for fresh air and of improving a tolerance to deformation caused after molding of the check valve for fresh air.SOLUTION: In a discharge container 1, a check valve 60 for fresh air having a thin-walled annular shape at the outer peripheral side of a partition wall 40 is disposed movably along the shaft line of the partition wall 40 between an inside plug 30 and the top wall part 21 of a discharge cap 20. The check valve 60 for fresh air is movable between an upper end position at which the outflow of air from a fresh air introduction hole 15 to a suction hole 24 is blocked by staying of the upper face of the valve at the top wall part 21 of the discharge cap 20, and a lower end position at which the lower face of the valve contacts a valve retainer part 80 to be supported. Besides, a clearance S1 enabling passage of air heading for the introduction hole 15 from the suction hole 24 is formed to at least one of the inner and outer peripheral edge sides of the check valve 60.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 in the mouth, a discharge cap that is provided with a discharge outlet and an intake hole for the contents, and the outside air introduction hole to the intake hole. The discharge container has a thin annular check valve for the outside air that allows the air to flow from the intake hole to the outside air introduction hole, and in particular, has a range of molding conditions for the check valve for the outside air. The present invention relates to a discharge container that is widened and can improve the tolerance for deformation that occurs after molding of a check valve for outside air.

  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 check valve for outside air that is integrally formed on the outer peripheral surface of the partition wall, There are known discharge containers having

  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. The outside air check valve is opened and the intake air hole provided in the discharge cap is opened between the outer layer body and the inner layer body through the outside air introduction hole provided in the mouth portion. The outer layer body can be restored to the original shape while reducing the volume of the inner layer body by introducing outside air. 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

  In the discharge container as described above, the check valve for outside air provided integrally with the partition wall is formed of a soft material and a thin wall so as to be easily operated by the pressure of the air after the contents are discharged. For this reason, the range of molding conditions of the check valve for outside air is very narrow, and plastic deformation is likely to occur during handling from molding to assembly of the check valve for outside air. Furthermore, when the content is filled at a high temperature in the content filling step, the influence of the temperature is added, and plastic deformation is more likely to occur.

  When such a deformation causes the check valve for outside air to hang down and impair the original valve function, even if the trunk is pressed during use, the outflow of air cannot be prevented, and the pressure on the trunk is reduced. The portion does not have a force for crushing the inner layer body, resulting in a discharge failure of the contents.

  In addition, when the valve tightening allowance (dimension difference for pressing the valve in the closing posture direction) is set so that the valve function can be maintained even if such deformation occurs, When the outer layer body is restored, the resistance when air passes through the check valve for the outside air increases, so that the restoration of the outer layer body is delayed or an air passing sound is generated.

  The present invention has been developed to solve such a problem, and the range of molding conditions of the check valve for outside air can be expanded, and the tolerance for deformation occurring after molding of the check valve for outside air can be improved. An object is to provide a discharge container.

  The discharge container of the present invention includes a container main body having a cylindrical mouth portion and a trunk portion connected to the mouth portion, an outflow hole for contents, and is attached to the opening end of the mouth portion so as to open the mouth portion. And a discharge cap connected to the outflow hole on the top wall, the discharge cap mounted on the opening covering the plug, and between the plug and the top wall of the discharge cap A cylindrical partition wall that partitions the flow path that reaches the discharge port from the outflow hole, and a check valve that opens and closes the flow path that reaches the discharge port from the outflow hole, The container main body includes a volume-deformable inner layer body that contains the contents, and air between the inner layer body from the outside air introduction hole that is provided in a portion corresponding to the mouth portion while accommodating the inner layer body inside. A double container including an outer layer body for introducing air, wherein the outside air introduction hole is provided in a top wall portion of the discharge cap. An outside air check that is communicable with the outside of the discharge cap through the formed suction hole, and forms a thin annular ring on the outer peripheral side of the partition wall between the inner plug and the top wall portion of the discharge cap. A valve is disposed movably along the axis of the partition wall, and the air check valve has an upper surface seated on a top wall portion of the discharge cap so that air from the outside air introduction hole to the intake hole Is movable between an upper end position that prevents the outflow of gas and a lower end position whose lower surface is supported by being in contact with the valve receiving portion, on the inner peripheral edge side and the outer peripheral edge side of the outside air check valve. At least one is formed with a gap that allows air to pass from the intake hole to the outside air introduction hole.

  In the discharge container of the present invention, the outside air introduction hole may be formed between the valve receiving portion and the lower surface of the outside air check valve when the outside air check valve is at the lower end position. It is preferable to provide at least one concave portion or convex portion that forms a gap that communicates with the intake hole.

  According to the present invention, the check valve for the outside air having a thin annular shape has its upper surface seated on the top wall portion of the discharge cap, thereby preventing the outflow of air from the outside air introduction hole to the intake hole, The lower surface is movable between the lower end position supported by contacting the valve receiving portion, and at least one of the inner peripheral edge side and the outer peripheral edge side of the outside air check valve is provided with an outside air introduction hole from the intake hole. Since the gap which enables the passage of the air toward is formed, the operating range of the check valve for outside air can be limited to a narrow range between the top wall portion of the discharge cap and the valve receiving portion. For this reason, according to the present invention, even if there is some molding failure or deformation in the outside air check valve, when the body part is pressed, the pressure of the air flowing from the outside air introduction hole to the intake hole is reversed. The upper surface of the stop valve can be seated on the top wall portion of the discharge cap to prevent the outflow of air and to allow good discharge of the contents.

  Therefore, according to the present invention, it is possible to provide a discharge container in which the range of molding conditions for the outside air check valve can be expanded and the tolerance for deformation that occurs after molding of the outside air check valve can be improved.

It is sectional drawing in the side view of the principal part of the discharge container which is one embodiment of this invention. It is sectional drawing which shows the state at the time of discharge of the content about the discharge container of FIG. It is sectional drawing in the side view of the principal part of the discharge container which is other embodiment of this invention. It is sectional drawing which shows the state at the time of the discharge of the content about the discharge container of FIG.

  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 outdoor air check valve 60, and a valve. A receiving portion 80 is provided. Although this discharge container 1 can accommodate various contents, it is particularly suitable for the purpose of accommodating relatively high-viscosity contents such as a kneaded product.

  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 end 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 (also referred to as a delamination container or a delamination container) including an outer layer body 13 and an inner layer body 14 accommodated inside the 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 this case, it is preferable that a plurality of outside air introduction holes 15 communicating between the inner layer body 14 and the outer layer body 13 are provided in a portion corresponding to the mouth portion 11 of the outer layer body 13 in a portion between the respective adhesive layers. 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 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 cylinder 33 is integrally provided on the lower surface of the main body wall 31, and the inner wall 30 is connected to the inner wall 30 of the inner plug 30 by fitting the seal cylinder 33 to the inner peripheral surface of the opening 11. 11 is attached to the opening end of the opening 11 and 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 main body wall 31 of the inner plug 30 so as to deviate from the axis of the main body wall 31. The outflow hole 31 a penetrates the main body wall portion 31 of the inner plug 30 on the front and back, and can be connected to the discharge port 23 provided on 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.

  A cylindrical wall 34 is provided at the center of the main body wall 31 of the inner plug 30 adjacent to the outflow hole 31a. The cylindrical wall 34 defines an opening penetrating the main body wall portion 31 of the inner plug 30 on the front and back sides by an inner peripheral surface thereof, and extends toward the storage chamber 12a. The cylindrical wall 34 is provided with a reduced diameter portion 34a that narrows the inner diameter as it goes downward. In the cylindrical wall 34, a moving valve 35 that is movable along the inner peripheral surface of the cylindrical wall 34 is provided. As shown in FIG. 1, the moving valve 35 is seated on the reduced diameter portion 34 a when the discharge container 1 is placed in an upright posture so as to close the accommodating chamber 12 a. 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 and the cylindrical wall 34 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 main body 50a formed in a circular plate shape capable of opening and closing an outflow hole 31a provided in the main body wall 31 of the inner plug 30 and most of the opening of the cylindrical wall 34; Three elastic arms 50b that integrally connect the valve body 50a to the inner peripheral surface of the partition wall 40 are provided. 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 36 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.

  Between the inner plug 30 and the top wall portion 21 of the discharge cap 20, a valve receiving portion 80 having a circular flange shape coaxial with the partition wall 40 is provided. The valve receiver 80 includes at least one through hole 80a that is a part of the air flow path R. In the present embodiment, the valve receiver 80 is integrally provided on the outer peripheral surface of the partition wall 40 with the same material as the partition wall 40.

  The outside air check valve 60 is formed of a sheet-like member such as a film having a thin annular shape. The outside air check valve 60 has its upper surface seated on the top wall portion 21 of the discharge cap 20 (see FIG. 2) to prevent the air from flowing from the outside air introduction hole 15 to the intake hole 24, and its upper position. The lower surface is configured to be movable between a lower end position supported by contact with the valve receiver 80 (see FIG. 1). As described above, the outside air check valve 60 is disposed between the inner plug 30 and the top wall portion 21 of the discharge cap 20 so as to be movable along the axis of the partition wall 40 on the outer peripheral side of the partition wall 40. Yes. Further, on the outer peripheral edge side of the outside air check valve 60, a gap S1 that allows passage of air from the intake hole 24 toward the outside air introduction hole 15 is formed. The gap S1 may be provided on at least one of the inner peripheral edge side and the outer peripheral edge side of the outside air check valve 60.

  Further, in the present embodiment, the valve receiving portion 80 includes the outside air introduction hole 15 and the intake hole between the valve receiving portion 80 and the lower surface of the outside air check valve 60 when the outside air check valve 60 is at the lower end position. 24 is provided with at least one recess 80b that forms a gap S2 that communicates with 24. In addition, you may comprise so that such clearance gap S2 may be formed by providing a convex part instead of the recessed part 80b.

  The discharge cap 20 can also be configured to include a lid 70. In the case shown in the figure, the lid body 70, 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 71. The discharge cylinder 21 a can be covered together with the top wall portion 21. A cylindrical sealing wall 72 is integrally provided on the inner surface of the lid 70, and when the lid 70 is closed, the sealing wall 72 is fitted inside the discharge cylinder 21 a to close the discharge port 23. It has become. On the side of the lid 70 facing the hinge 71, a knob 73 is provided as a finger hook when the lid 70 is opened.

  The lid body 70 is not limited to the structure integrally connected to the discharge cap 20 by the hinge 71, and 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, as shown in FIG. 2, the body 12 is squeezed while the container body 10 is inclined so that the discharge cylinder 21 a faces downward with the lid 70 opened. By opening the valve 50, the contents inside the storage chamber 12 a can flow out from the outflow hole 31 a toward the discharge port 23, and can be discharged from the discharge port 23 toward the outside. At this time, since the intake hole 24 is closed by the outside air check valve 60 moved to the upper end position due to a sudden pressure increase due to squeeze, the air existing between the outer layer body 13 and the inner layer body 14 leaks to the outside. Therefore, by squeezing the body portion 12 of the outer layer body 13, the inner layer body 14 can be pressed and the contents can be pushed out toward the outflow hole 31a. In this state, the movement valve 35 in the cylindrical wall 34 is moved to the discharge port 23 side by its own weight or the content liquid flowing in from the opening on the lower side of the cylindrical wall 34.

  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 outside air is reduced due to the decrease in the air pressure on the outside air introduction hole 15 side due to the restoration of the outer layer body 13. Since the check valve 60 is lifted toward the lower end position, outside air is introduced between the inner layer body 14 and the outer layer body 13 from the intake hole 24 through the gap S1, the through hole 80a, and the outside air introduction hole 15. As a result, the outer layer body 13 is restored to its original shape while the inner layer body 14 is deformed and deformed, and the outside air is prevented from being introduced into the inner layer body 14, that is, the housing chamber 12 a, and accommodated in the container body 10. It is possible to reduce the contact with the air of the contents to be changed and to suppress the deterioration and deterioration of the contents.

  At this time, if the outflow hole 31a is blocked by the check valve 50, the contents remain in the discharge cylinder 21a, but the moving valve 35 brings the discharge container 1 into the original standing posture. When returning, it moves downward due to its own weight or pressure drop in the storage chamber 12a. As a result, a space corresponding to the movement of the movement valve 35 is formed above the cylindrical wall 34, so that the content corresponding to this space can be pulled back from the discharge cylinder 21a (sack). Back function), dripping can be effectively prevented. In addition, since the moving valve 35 moved downward is seated on the reduced diameter portion 34a of the cylindrical wall 34, the inside of the accommodation chamber 12a can be kept closed.

  Here, in the discharge container 1 of the present invention, the check valve 60 for the outside air that forms a thin ring on the outer peripheral side of the partition wall 40 is provided between the inner plug 30 and the top wall portion 21 of the discharge cap 20. The outside air check valve 60 is disposed so as to be movable along the axis, and the upper surface of the check valve 60 is seated on the top wall portion 21 of the discharge cap 20, thereby preventing outflow of air from the outside air introduction hole 15 to the intake hole 24. It is configured to be movable between an upper end position and a lower end position whose lower surface is in contact with and supported by the valve receiver 80, and is provided on at least one of the inner peripheral edge side and the outer peripheral edge side of the outside air check valve 60. Is formed with a gap S1 that allows the passage of air from the intake hole 24 toward the outside air introduction hole 15, so that the operating range of the check valve 60 for outside air is defined as the top wall portion 21 of the discharge cap 20 and the valve receiving portion. It can be limited to a narrow range between 80.

  For this reason, in the discharge container 1 of the present invention, even when the outside air check valve 60 has some molding failure or deformation, the air flowing from the outside air introduction hole 15 to the suction hole 24 when the body 12 is pressed. With this pressure, the upper surface of the check valve 60 for the outside air can be seated on the top wall portion 21 of the discharge cap 20 to prevent the outflow of air, thereby enabling good discharge of the contents. In particular, even when the discharge container 1 of the present invention is used for containing a relatively high-viscosity content such as a kneaded one, regardless of molding failure or deformation of the outside air check valve 60, Smooth discharge of contents can be realized.

  Further, in the discharge container 1 of the present invention, even when the internal pressure of the space between the inner layer body 14 and the outer layer body 13 is increased due to a temperature change or the like in a steady state, the increase in the pressure causes the outside air check valve 60 to be in the upper end position. Since the air can be lifted and escaped to the outside, an increase in the internal pressure of the storage chamber 12a can be prevented. Therefore, it is possible to avoid the inconvenience that the contents are ejected from the discharge port 23 when the lid 70 is opened due to such an increase in internal pressure.

  In the discharge container 1 of the present invention, the outside air introduction hole 15 is provided between the valve receiving portion 80 and the lower surface of the outside air check valve 60 when the outside air check valve 60 is in the lower end position in the valve receiving portion 80. Since at least one concave portion 80b or convex portion that forms a gap S2 that communicates with the intake hole 24 is provided, when the squeeze of the body portion 12 is released, the clearance check valve 60 for the outside air and the valve receiving portion 80 are provided by the gap S2. The air passage can be more reliably formed between the two.

  In the embodiment described above, at least one concave portion 80b or convex portion is provided in the valve receiving portion 80. However, as shown in FIG. 3, such a concave portion 80b or convex portion may not be provided. Good. FIG. 3 is a cross-sectional view in a side view of the main part of a discharge container 101 according to another embodiment of the present invention. In FIG. 3, members corresponding to those described above are denoted by the same reference numerals.

  In the case shown in FIG. 1, the valve receiver 80 has a circular flange shape that is coaxial with the partition wall 40 and includes at least one through hole 80 a that becomes a part of the air flow path R. It is integrally provided on the surface. On the other hand, in the discharge container 101 of the embodiment shown in FIG. 3, the valve receiving portion 180 has a concentric double cylindrical shape composed of an outer cylindrical portion 180a and an inner cylindrical portion 180b erected on the inner plug 30. doing. In addition, a plurality of vertical ribs 137 are disposed between the outer cylinder portion 180a and the inner cylinder portion 180b at intervals in the circumferential direction to more reliably prevent the outside air check valve 60 from dropping. . The plurality of vertical ribs 137 are formed integrally with the inner plug 30.

  According to the present embodiment, as shown in FIG. 4, by squeezing the trunk portion 12 while tilting the container body 10 so that the discharge cylinder 21 a faces downward with the lid 70 opened, FIG. The contents can be discharged as in the case of the embodiment shown. Moreover, it is the same as the case of the embodiment shown in FIG. 1 that the outer layer body 13 can be restored while the inner layer body 14 is reduced in volume by squeezing to prevent the deterioration and deterioration of the contents. Further, in the present embodiment, as in the case of the embodiment shown in FIG. 1, when the internal pressure of the space between the inner layer body 14 and the outer layer body 13 is increased due to a temperature change or the like during a steady state, It is possible to prevent the contents from being ejected due to an increase in internal pressure.

  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.

  For example, in the above-described embodiment, the container body 10 is a laminated peeling container in which the inner layer body 14 is laminated on the inner surface of the outer layer body 13 in a peelable manner. It is good also as a built-in type double container built in 13 inside.

  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 Cylindrical wall 34a Reduced diameter part 35 Moving valve 36 Vent hole 40 Partition wall 41 Channel 50 Check Valve 50a Valve body 50b Elastic arm 60 Outside air check valve 70 Lid 71 Hinge 72 Seal wall 73 Knob part 80 Valve receiving part 80a Through hole 80b Recess 101 Discharge container 137 Vertical rib 180 Valve receiving part 180a Outer cylinder part 180b Inner cylinder Part R Air flow path S1 gap S2 gap

Claims (2)

A container body including a cylindrical mouth portion and a trunk portion connected to the mouth portion;
An inner plug provided with an outflow hole for the contents, attached to the opening end of the mouth portion and covering the opening of the mouth portion,
A discharge port connected to the outflow hole is provided in the top wall portion, and a discharge cap that is attached to the mouth portion and covers the inner plug,
A cylindrical partition wall that is mounted 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 that opens and closes a flow path from the outflow hole to the discharge port,
The container body includes a volume-deformable inner layer body that accommodates contents, and an inner air layer between the inner layer body and the inner layer body that accommodates the inner layer body from an outside air introduction hole provided in a portion corresponding to the mouth portion. A double container provided with an outer layer body for introducing air;
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,
Between the inner plug and the top wall portion of the discharge cap, an outside air check valve that forms a thin annular ring on the outer peripheral side of the partition wall is disposed movably along the axis of the partition wall,
The outside air check valve has an upper surface seated on the top wall portion of the discharge cap to prevent the air from flowing from the outside air introduction hole to the intake hole, and a lower surface of the check valve for the valve receiving portion. It is movable between the lower end position supported by contact,
At least one of the inner peripheral edge side and the outer peripheral edge side of the outside air check valve is formed with a gap that allows passage of air from the intake hole toward the outside air introduction hole. Discharge container.   The valve receiving portion communicates the outside air introduction hole and the intake hole between the valve receiving portion and the lower surface of the outside air check valve when the outside air check valve is at the lower end position. The discharge container according to claim 1, further comprising at least one concave portion or convex portion that forms the shape.

Images