JP2017132529A - 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: A check valve 60 for fresh air having a flange shape and vertically movable on an outer peripheral edge part 61 of a discharge container 1 by elastic deformation is integrally provided on the outer peripheral face of a partition wall 40 of the container. In a stationary state before elastic deformation by an air pressure, the outer peripheral edge part 61 of the check valve 60 for fresh air is disposed between an upper end position at which the outflow of air from a fresh air introduction hole 60 to a suction hole 24 is blocked by staying at the top wall part 21 of a discharge cap 20, and a lower end position at which a downward movement is blocked by contacting with a valve retainer part 37 provided to an inside plug 30.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. In relation to the discharge container having the check valve for outside air that allows the inflow of air from the intake hole to the outside air introduction hole, in particular, the range of molding conditions of the check valve for outside air can be expanded, The present invention relates to a discharge container that can improve 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 forms a flange integrally provided 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 outside air is opened 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. Thus, the outer layer body can be restored to its original shape while reducing the volume of the inner layer body. 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.

  If the outer peripheral edge of the check valve for outside air hangs down due to such deformation and the original valve function is impaired, the outflow of air cannot be prevented even if the trunk is pressed during use. A part of the pressing force does not become a force for crushing the inner layer body, which causes a discharge failure of the contents.

  Also, if the valve tightening allowance (dimension difference for pressing the outer peripheral edge of the valve upward) is set so that the valve function can be maintained even if such deformation occurs, the discharge of the contents When the outer layer body is later 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 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 valve that can communicate with the outside of the discharge cap through the formed intake hole and that forms a flange shape and can move up and down its outer peripheral edge by elastic deformation is integrated with the outer peripheral surface of the partition wall The outer peripheral edge portion of the outside air check valve is seated on the top wall portion of the discharge cap at a normal time before being elastically deformed by air pressure, so that the outside air introduction hole is connected to the intake hole. It is arranged between an upper end position that prevents the outflow of air and a lower end position that is prevented from moving downward by contacting the valve receiving portion provided in the inner plug.

  Further, in the discharge container of the present invention, the outer peripheral edge portion of the outside air check valve is disposed at the lower end position in the steady state, and the valve receiving portion has a flange shape. When at least one of the annular surface and the outer peripheral edge of the outside air check valve is at the lower end position, the outer peripheral edge of the outside air check valve is at the lower end position. Preferably, at least one concave portion or convex portion is formed between the annular surface and the outer peripheral edge portion of the outside air check valve so as to communicate the outside air introduction hole and the intake hole.

  According to the present invention, the outer peripheral edge of the check valve for the outside air is seated on the top wall of the discharge cap at the normal time before being elastically deformed by the air pressure, and the upper end position prevents the outflow of air. Since it is arranged between the lower end position where the downward movement is prevented by abutting the valve receiving part provided on the stopper, the movable range of the check valve for outside air is separated from the top wall part of the discharge cap. It can be limited to a narrow range between the valve receiving portion of the stopper. 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 outer peripheral edge portion 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 the elements on larger scale of FIG. 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 which shows the modification of the discharge container of FIG. It is sectional drawing in the side view which shows the other modification of the discharge container of FIG. It is sectional drawing in the side view which shows the further another modification of the discharge container of FIG. It is sectional drawing in the side view which shows the further another modification of 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.

  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, and an outside air check valve 60. ing. 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.

  As shown in FIG. 2, an outer air check valve 60 having a thin circular flange shape 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 configured to move up and down its outer peripheral edge 61 by elastic deformation. In the present embodiment, the outer peripheral edge 61 of the outside air check valve 60 is moved downward by abutting against the valve receiving portion 37 provided in the inner plug 30 in a steady state before being elastically deformed by air pressure. It is arranged at the lower end position to be blocked (see the solid line in FIG. 2).

  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, the outer peripheral edge portion 61 of the outside air check valve 60 is separated from the valve receiving portion 37 and is placed on the top wall portion 21. It sits and moves to the upper end position (see the two-dot chain line in FIG. 2) that prevents the outflow of air through the air flow path R from the outside air introduction hole 15 to the intake hole 24. It should be noted that the outer peripheral edge 61 of the outside air check valve 60 does not necessarily need to be disposed at the lower end position during the steady state, and may be disposed between the upper end position and the lower end position during the steady state.

  In the present embodiment, the valve receiving portion 37 is formed by the upper surface of an annular step portion provided on the inner peripheral surface of the support cylinder portion 32. Thus, the valve receiving part 37 is comprised by the cyclic | annular surface provided coaxially with the non-return valve 60 for outside air which comprises a flange shape. Further, the valve receiving portion 37 has a gap that allows the outside air introduction hole 15 and the intake hole 24 to communicate with each other when the outer peripheral edge 61 of the outside air check valve 60 is at the lower end position. At least one convex part (rib in this example) 37a formed between the outer peripheral edge part 61 of 60 is provided. The valve receiving portion 37 replaces the at least one convex portion 37a as described above with a gap that allows the outside air introduction hole 15 and the intake hole 24 to communicate with each other when the outer peripheral edge 61 of the outside air check valve 60 is at the lower end position. May be provided between the annular surface and the outer peripheral edge 61 of the outside air check valve 60. Alternatively, at least one convex portion (rib in this example) 37a or a concave portion may be provided on the outer peripheral edge portion 61 of the outside air check valve 60 instead of the valve receiving portion 37.

  As shown in FIG. 1, the discharge cap 20 can 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. 3, 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, the air existing between the outer layer body 13 and the inner layer body 14 does not leak to the outside. By squeezing the 13 body portions 12, the inner layer body 14 can be pressed to push the contents toward the outflow hole 31 a. 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 12 is released after the contents are discharged, the outflow hole 31a is closed by the check valve 50 as shown in FIG. 1, and the outer layer body 13 is restored to its original shape. Due to the negative pressure generated, the outside air check valve 60 moves toward the lower end position (see the solid line in FIG. 1), and the inner layer body 14 and the outer layer body 13 from the intake hole 24 through the air flow path R and the outside air introduction hole 15. Outside air is introduced between. 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 according to the present invention, the outer air check valve 60 having a flange shape is integrally provided on the outer peripheral surface of the partition wall 40, and the outer peripheral edge 61 of the outdoor air check valve 60 is set in a steady state. Sitting on the top wall portion 21 of the discharge cap 20 prevents the air from flowing from the outside air introduction hole 15 to the intake hole 24 and the valve receiving portion 37 to prevent downward movement. Since it is configured to be disposed between the lower end position, the movable range of the outer peripheral edge portion 61 of the outside air check valve 60 is between the top wall portion 21 of the discharge cap 20 and the valve receiving portion 37 of the inner plug 30. Can be limited to a narrow range.

  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. The outer peripheral edge 61 of the outside air check valve 60 can be seated on the top wall portion 21 of the discharge cap 20 by the pressure of the air 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, the outer peripheral edge 61 of the outside air check valve 60 is disposed at the lower end position in the steady state, and the valve receiving portion 37 is coaxial with the outside air check valve 60 having a flange shape. When the outer peripheral edge 61 of the outside air check valve 60 is at the lower end position on at least one of the annular surface and the outer peripheral edge 61 of the outside air check valve 60. At least one concave portion or convex portion 37a is formed between the annular surface and the outer peripheral edge portion 61 of the outside air check valve 60 so that the outside air introduction hole 15 and the intake hole 24 communicate with each other. Yes.

  For this reason, in the discharge container 1 of the present invention, the position of the outer peripheral edge 61 of the outside air check valve 60 in a steady state can be stabilized, and the outside air is introduced by the gap formed by the concave portion or the convex portion 37a. The hole 15 is communicated with the outside world so that air in the space between the inner layer body 14 and the outer layer body 13 can be surely released to the outside world. Therefore, 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, air can be released to the outside world, so that the discharge port 23 is opened when the lid 70 is opened. It is possible to prevent the contents from being ejected.

  In the above-described embodiment, the outside air check valve 60 having a thin circular flange shape has an arch shape in which a cross-sectional shape passing through the axis of the outside air check valve 60 is curved upward. However, for example, it may be a straight shape as indicated by reference numeral 60A in FIG. 4, a wavy shape based on a straight shape as indicated by reference numeral 60B in FIG. 5, or a reference numeral 60C in FIG. It is good also as a wave-line-shaped thing based on the arch shape curved downward, as shown by (6), or the arch shape curved downward as shown by the code | symbol 60D in FIG.

  Further, in the embodiment described above, the outer peripheral edge 61 of the outside air check valve 60 is arranged at the lower end position at the time of steady state, but as shown in FIG. 8, it is arranged at the upper end position at the time of steady state. It may be. FIG. 8 is a cross-sectional view of a main part of a discharge container 101 according to another embodiment of the present invention in a side view. In FIG. 8, members corresponding to those described above are denoted by the same reference numerals.

  In the present embodiment, the outside air check valve 160 has an arch shape in which a cross-section in a cross section passing through the axis of the outside air check valve 160 is curved downward, and is arranged at the upper end position in a steady state. It is configured. Further, the valve receiving portion 137 is configured by an annular surface provided coaxially with the outside air check valve 160 having a flange shape, and when the outside air check valve 160 is at the lower end position on the annular surface. Are provided with at least one recess 137a that forms a gap through which air from the intake hole 24 toward the outside air introduction hole 15 passes.

  In the present embodiment, the main wall 31 of the inner plug 30 is not provided with the cylindrical wall 34 and the movement valve 35, and instead, the outflow hole 31 a ′ expands concentrically with the main wall 31. Is provided. The check valve 50 'is configured as a one-point valve. The seal wall 72 'of the lid 70 is fitted to the outside of the discharge cylinder 21a' so as to close the discharge port 23 '.

  According to the present embodiment, since the outside air check valve 160 is disposed at the upper end position in a steady state, the pressing force can be immediately used as a force for pushing out the contents when the body portion 12 is pressed. Therefore, according to the present embodiment, smooth discharge of contents can be realized even when contents with particularly high viscosity are accommodated.

  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 screw 11b Sealing step part 12 Body part 12a Storage chamber 13 Outer layer body 14 Inner layer body 15 Outside air introduction hole 20 Discharge cap 21 Top wall part 21a, 21a 'Discharge cylinder 21b Annular groove 22 Tube Wall portion 22a Female screw 23, 23 'Discharge port 24 Air intake hole 30 Inner plug 31 Body wall portion 31a, 31a' Outflow hole 31b Annular groove 32, 32 'Support cylinder portion 33 Seal cylinder 34 Cylindrical wall 34a Reduced diameter portion 35 Moving valve 36 vent hole 37 valve receiving portion 37a convex portion 40 partition wall 41 flow path 50, 50 ′ check valve 50a valve body 50b elastic arm 60, 60A, 60B, 60C, 60D check valve for outside air 61 of check valve for outside air Outer peripheral edge part 70 Lid 71 Hinge 72, 72 'Seal wall 73 Knob part 101 Discharge container 137 Valve receiving part 137a Recess 160 Check valve for outside air Air flow path

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,
On the outer peripheral surface of the partition wall, a non-return valve for outside air that is formed in a flange shape and can move up and down its outer peripheral edge by elastic deformation is integrally provided,
The outer peripheral edge portion of the outside air check valve is seated on the top wall portion of the discharge cap in a steady state before being elastically deformed by air pressure, thereby preventing the outflow of air from the outside air introduction hole to the intake hole. A discharge container, wherein the discharge container is disposed between an upper end position to be moved and a lower end position that is prevented from moving downward by contacting a valve receiving portion provided in the inner stopper. The outer peripheral edge of the outside air check valve is disposed at the lower end position in the steady state,
The valve receiving portion is an annular surface provided coaxially with the outside air check valve having a flange shape,
At least one of the annular surface and the outer peripheral edge portion of the external air check valve communicates the external air introduction hole and the intake hole when the outer peripheral edge portion of the external 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 a gap to be formed between the annular surface and an outer peripheral edge portion of the outside air check valve.

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