JP2017081628A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container capable of surely closing a non-return valve after discharging a content even when the content with a relatively high viscosity containing slight solid is stored.SOLUTION: A discharge container 1 includes: a container body 10; an inside plug 30 including an outflow hole 31a of a content; a discharge cap 20 including a discharge port 23 connected to the outflow hole 31a; a cylindrical valve seat part 40 provided in the inside plug 30 while surrounding the outflow hole 31a, projecting to the discharge port 23 and forming an escape part in the outside; and a non-return valve 60 provided between the inside plug 30 and the discharge cap 20, and openable/closable between a closing position abutting on a tip surface 40a of the valve seat part 40 and closing the outflow hole 31a, and an opening position separated from the tip surface 40a of the valve seat part 40 and opening the outflow hole 31a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a discharge container in which a discharge cap having a discharge port is attached to a mouth portion of a container main body that contains contents, and in particular, has a relatively high viscosity including some solid matter such as sauce and miso. The present invention relates to a discharge container suitable for containing high contents.

  Conventionally, it has a configuration in which a discharge cap having a discharge port is attached to a mouth portion of a container body that contains contents, and is housed in the container body by pressing (squeezing) the body portion of the container body. There is known a discharge container in which a desired amount can be discharged from a discharge port.

  Further, as such a discharge container, there is a structure provided with a check valve that allows the discharge of the contents from the container body through the discharge port while preventing the contents and the outside air from flowing into the container body. Are known.

  For example, in Patent Document 1, the container body is configured as a double container containing an inner layer body (inner container) that can be volume-deformed and deformed inside the outer layer body (outer container), and a discharge cap (pour-out cap member) The discharge container of the structure which provided the non-return valve between the inside stoppers (board | substrate member) is described. In the discharge container having such a configuration, after the body part is pressed to discharge the contents and then the body part is released, the outflow hole provided in the inner plug is closed by the check valve and discharged. Inflow of contents and outside air from the outlet (outlet) toward the container body is prevented, and outside air is introduced between the outer layer body and the inner layer body through the intake hole (communication hole) provided in the discharge cap. Since the outer layer body can be restored to its original shape while the body is deformed and deformed, the contents are discharged without replacing with the outside air, which makes it difficult to touch the contents remaining inside the container body with the air. Thus, deterioration and alteration can be suppressed.

JP 2011-230840 A

  Discharge containers such as the above are often used for applications that contain liquid contents such as soy sauce and cosmetics, but have relatively high-viscosity contents containing some solid materials such as sauces and miso. There is also a desire to use it for the purpose of containing things.

  However, the above-described conventional discharge container has a configuration in which the upper surface where the outflow hole of the inner plug opens is formed into a flat surface, and a plate-like check valve is brought into surface contact with the flat upper surface to close the outflow hole. Therefore, if it is used for applications that contain relatively viscous contents containing solid matter, the solid matter may be caught between the check valve and the upper surface of the inner plug, and the check valve may not be closed. There was a problem.

  An object of the present invention is to solve such a problem, and the object of the present invention is to reverse the contents after discharging the contents even if the contents containing a relatively high viscosity containing some solids are accommodated. An object of the present invention is to provide a discharge container capable of reliably closing a stop valve.

  A discharge container according to the present invention includes a container main body having a cylindrical mouth and a body portion connected to the mouth, and an outflow hole for contents, and is attached to the opening end of the mouth to An inner cap covering the opening; a discharge port connected to the outflow hole; a discharge cap attached to the mouth portion to cover the inner plug; and the inner plug provided around the outflow hole; A cylindrical valve seat portion that protrudes toward the side and forms an escape portion on the outside; and is provided between the inner plug and the discharge cap, and abuts against a front end surface of the valve seat portion to form the outflow hole And a check valve that is openable and closable between a closed position that closes the valve and an open position that opens the outflow hole away from the front end surface of the valve seat portion.

  In the discharge container of the present invention, in the above configuration, it is preferable that a tip end surface of the valve seat portion is formed in a convex curved shape toward the discharge port side.

  In the discharge container of the present invention, in the above configuration, a cylindrical partition wall that partitions a flow path from the outflow hole to the discharge port is mounted between the inner plug and the discharge cap, It is preferable that the valve is configured as a one-point valve integrally connected to the partition wall via a hinge portion.

  In the discharge container of the present invention, in the above configuration, the container body includes an outer layer body provided with an outside air introduction hole in a portion corresponding to the mouth portion, and an inner layer body capable of volume reduction and deformation accommodated inside the outer layer body. Air that can communicate with the outside air introduction hole and communicate with the outside of the discharge cap through an intake hole provided in the discharge cap between the discharge cap and the mouth portion. It is preferable that a flow path is provided and an outside air check valve for opening and closing the intake hole is integrally provided on the outer peripheral surface of the partition wall.

  In the above-described configuration, the discharge container of the present invention preferably has an interval between the outer peripheral edge of the check valve and the inner peripheral surface of the partition wall that is 50% or more of the inner diameter of the outflow hole.

  In the discharge container of the present invention, in the above configuration, it is preferable that a protruding height of the valve seat portion with respect to the inner plug is 50% or more of an inner diameter of the outflow hole.

  In the above configuration, the discharge container of the present invention is preferably used for accommodating kneaded contents.

  According to the present invention, since the tubular valve seat portion that protrudes toward the discharge port side and forms the escape portion on the outside is provided on the inner plug, the container main body includes a slight solid matter. Even when contents with high intrinsic viscosity are accommodated, the solid matter contained in the contents is guided to the relief part without being sandwiched between the front end surface of the valve seat part and the check valve, and the fixed object Can be prevented from being caught between the front end surface of the valve seat portion and the check valve, and the check valve can be reliably closed after the contents are discharged. Therefore, this discharge container can be made suitable for an application that contains a relatively high-viscosity content containing some solid matter.

  Thus, according to the present invention, it is possible to provide a discharge container that can reliably close the check valve after discharging the content even if it contains a relatively high-viscosity content containing some solid matter. Can do.

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 follows the AA line in FIG. It is sectional drawing which shows the state which a check valve opens and the contents are discharged. It is sectional drawing in the side view which shows the modification of the discharge container shown in FIG.

  Hereinafter, the present invention will be described in more detail with reference to the drawings.

  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 valve seat portion 40, and a check valve 60. This discharge container 1 can be used, for example, for applications containing relatively high-viscosity contents containing some solid material such as sauce and miso.

  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 this Embodiment, the container main body 10 is comprised by the double container (lamination peeling container) provided with the outer layer body 13 and the inner layer body 14 accommodated inside the outer layer body 13. FIG.

  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 squeezed (pressed) 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 in the axial center of the main body wall 31 of the inner plug 30. The outflow hole 31 a is formed in a circular shape, penetrates the main body wall 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 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.

  The valve seat portion 40 is provided integrally with the main body wall portion 31 of the inner plug 30. The valve seat portion 40 is formed in a cylindrical shape surrounding the outflow hole 31a, and is upwardly directed toward the discharge port 23 so that the distal end is located on the discharge port 23 side with respect to the base end connected to the main body wall portion 31. Protruding. In the case shown in the drawing, the valve seat portion 40 is formed in a tapered shape whose outer diameter gradually decreases from the proximal end side toward the distal end side. The front end surface 40a facing the upper side of the valve seat portion 40 is a portion that becomes the valve seat of the check valve 60, and the front end surface 40a is convex toward the discharge port 23 side (upper side), that is, toward the tapered side. It is formed in a tapered shape with a narrow radial width.

  In addition, the radially outer portion of the valve seat portion 40 of the inner plug 30 is a relief portion 35 formed by the valve seat portion 40. In the present embodiment, the inner plug 30 is integrally provided with a cylindrical wall portion 34 with a space radially outward with respect to the valve seat portion 40, and the relief portion 35 includes the cylindrical wall portion 34 and the valve seat portion. 40 is configured as an annular recess.

  A partition wall 50 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 50 is formed in a cylindrical shape by, for example, low-density polyethylene (soft polyethylene), one end of which is fitted into an annular groove 21b provided on the lower surface of the top wall portion 21, and the other end is an 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. 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 is provided in the top wall portion 21 from the outflow hole 31 a provided in the main body wall portion 31 by the partition wall 50. A flow path (inner part of the partition wall 50) 51 reaching the discharge port 23 is partitioned.

  The check valve 60 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 positioned radially inside the partition wall 50, that is, inside the flow path 51. In the illustrated case, the check valve 60 is made of the same material as the partition wall 50. As shown in FIG. 2, the check valve 60 includes a valve body 60 a formed in a circular plate shape having a larger diameter than the distal end surface 40 a of the valve seat 40, and the valve body 60 a within the partition wall 50. And a hinge portion 60b integrally connected to the peripheral surface. That is, the check valve 60 is configured as a so-called one-point valve in which the valve main body 60a is supported on the partition wall 50 at one point by the hinge portion 60b and swings in the vertical direction about the hinge portion 60b.

  As shown in FIG. 1, in the normal state, the check valve 60 closes the outflow hole 31a when the lower surface of the valve body 60a abuts the tip surface 40a of the valve seat 40 over the entire circumference. . On the other hand, when the body portion 12 is squeezed and the contents are pushed out from the storage chamber 12a toward the outflow hole 31a, the valve body 60a swings around the hinge portion 60b as shown in FIG. The check valve 60 opens the outflow hole 31a away from the tip surface 40a of the portion 40 upward. Thus, the check valve 60 can be opened and closed between the open position where the valve body 60a closes the outflow hole 31a and the open position where the outflow hole 31a opens.

  A hemispherical protrusion 60c is integrally provided on the upper surface of the valve body 60a so that the outer peripheral edge of the valve body 60a has a predetermined rigidity with respect to the valve seat 40 by the protrusion 60c. It is possible to make contact while securing the above.

  As shown in FIG. 1, the distance S in the radial direction between the outer peripheral edge of the valve body 60a and the inner peripheral surface of the partition wall 50 is 50% or more of the diameter (inner diameter) D of the outflow hole 31a. Is set to

  Further, the protruding height H of the valve plug 40 with respect to the main body wall 31 of the inner plug 30, that is, the depth of the escape portion 35 is set to be 50% or more of the diameter (inner diameter) of the outflow hole 31 a. Has been.

  As shown in FIG. 1, between the discharge cap 20 and the mouth portion 11, the outside air introduction hole 15 provided in the mouth portion 11 communicates with the vent hole 36 provided in the inner plug 30 and the top wall portion 21. An air flow path 70 that can communicate with the outside of the discharge cap 20 through an intake hole 24 provided in the air gap is defined. Note that the lower end of the cylindrical wall portion 22 is in airtight contact with the sealing step portion 11b over the entire circumference to seal the air flow path 70. In addition, a slit extending in the vertical direction is formed in the male screw 11a, and a part of the air flow path 70 is configured by the slit in a portion where the male screw 11a and the female screw 22a are provided. 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.

  In the normal state, the outer peripheral surface of the partition wall 50 is elastically brought into contact with the lower surface of the top wall portion 21 to close the air intake hole 24, while the pressure between the outer layer body 13 and the inner layer body 14 becomes low. An outside air check valve 80 is provided integrally with the intake hole 24 so as to communicate with the air flow path 70 so as to be separated from the lower surface of the air flow path. In the illustrated case, the outside air check valve 80 is formed in a thin annular shape from the same material as the partition wall 50, and is configured to elastically contact the lower surface of the top wall portion 21 at the outer peripheral edge thereof.

  The discharge cap 20 can also be configured to include a lid 90. In the case shown in the drawing, the lid body 90, 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 91. The discharge cylinder 21 a can be covered together with the top wall portion 21. A cylindrical seal wall 92 is integrally provided on the inner surface of the lid 90. When the lid 90 is closed, the seal wall 92 is fitted to the outside of the discharge cylinder 21a to close the discharge port 23. It has become. On the side facing the hinge 91 of the lid 90, a knob 93 is provided that serves as a finger grip when the lid 90 is opened.

  The lid 90 is not limited to be integrally connected to the discharge cap 20 by the hinge 91, 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, 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 90 opened. By opening the valve 60, the contents inside the storage chamber 12a can flow out from the outflow hole 31a 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 check valve 80 for the outside air, the air existing between the outer layer body 13 and the inner layer body 14 does not leak to the outside. By squeezing the portion 12, the inner layer body 14 can be pressed and the contents can be pushed out toward the outflow hole 31a.

  The discharge cylinder 21a and the discharge port 23 are provided so as to be shifted from the valve seat portion 40 toward the opposite side of the valve body 60a with respect to the hinge portion 60b of the check valve 60. When the valve is opened, the upper end of the valve body 60a does not overlap the discharge port 23. Thereby, the content which flowed out toward the flow path 51 from the outflow hole 31a can be efficiently discharged from the discharge port 23 to the outside. The direction in which the discharge cylinder 21a and the discharge port 23 are displaced from the valve seat portion 40 is preferably the above direction, but the direction may be another direction, and the discharge cylinder 21a and the discharge port 23 may be connected to the valve. You may make it arrange | position coaxially with the seat part 40. FIG.

  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 60 and the outside air check valve 80 is opened as shown by a two-dot chain line in FIG. Outside air is introduced between the inner layer body 14 and the outer layer body 13 from the intake hole 24 via the air flow path 70 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.

  Here, in the discharge container 1 according to the present invention, the inner plug 30 is provided with the cylindrical valve seat portion 40 that protrudes toward the discharge port 23 and forms the escape portion 35 on the radially outer side. When the container body 10 contains a relatively high-viscosity content containing some solid matter, the contents are discharged when the body 12 is released from squeeze and the valve body 60a is closed. Even if the solid matter contained in the valve seat portion 40 exists between the front end surface 40a of the valve seat portion 40 and the valve main body 60a, the solid matter may be disposed between the front end surface 40a of the valve seat portion 40 and the valve main body 60a of the check valve 60. It can guide to the escape part 35, without pinching in between, and it can suppress that the said fixed object is pinched between the front end surface 40a of the valve seat part 40, and the valve main body 60a. In particular, in the present embodiment, the valve seat portion 40 is formed in a tapered shape with the outer diameter gradually decreasing from the proximal end side toward the distal end side. It is possible to guide toward the escape portion 35 more effectively. Thereby, it can suppress that a fixed thing is pinched | interposed between the front end surface 40a of the valve seat part 40, and the valve main body 60a after discharge of the contents, and can close the valve main body 60a reliably. Therefore, the discharge container 1 can be made suitable for applications that contain contents with relatively high viscosity including solid matter.

  Further, in the discharge container 1 of the present invention, the tip end surface 40a of the cylindrical valve seat portion 40 is formed in a convex curved shape toward the discharge port 23, so that it becomes the closed position and the outflow hole. The valve main body 60a of the check valve 60 that closes 31a comes into line contact with the distal end surface 40a of the valve seat portion 40 on the lower surface thereof. Therefore, when a relatively high-viscosity content containing solid matter is stored in the storage chamber 12a of the container body 10, the squeeze of the body portion 12 is released and the valve body 60a is closed after the content is discharged. Even if solids contained in the contents exist between the tip surface 40a of the valve seat 40 and the valve body 60a, the solids are not sandwiched between the line contact portions between the tip surface 40a and the valve body 60a. Thus, it is possible to effectively move the relief portion 35 outside the valve seat portion 40 or the outflow hole 31a inside the valve seat portion 40 along the curved tip surface 40a. At this time, the valve main body 60a is formed to have a larger diameter than the valve seat portion 40, and the outer peripheral edge portion protrudes radially outward from the valve seat portion 40, so that there is a gap between the front end surface 40a and the valve main body 60a. It is possible to more reliably move the solid matter present in the direction toward the relief portion 35 outside the valve seat portion 40.

  As described above, in the discharge container 1 according to the present invention, the tip end surface 40a of the cylindrical valve seat portion 40 is formed in a convex curved shape toward the discharge port 23 side, so that solid matter is formed between the valve main body 60a and the tip end. The check valve 60 can be reliably closed after the contents are discharged by further reliably suppressing the pinching between the surface 40a and the surface 40a.

  Further, since the annular relief portion 35 is provided outside the valve seat portion 40, when the solid matter contained in the contents is moved to the outside of the valve seat portion 40 along the distal end surface 40a that is curved. The solid matter can be stored in the escape portion 35. Furthermore, since the protruding height H of the valve seat 40, that is, the depth of the escape portion 35 is set to be 50% or more of the inner diameter of the outflow hole 31a, the solid matter accumulated in the escape portion 35 enters the valve body 60a. It is possible to prevent the valve main body 60a from being obstructed and prevent the valve main body 60a from being obstructed, thereby reliably closing the valve main body 60a.

  Further, since the interval S between the outer peripheral edge of the valve body 60a and the inner peripheral surface of the partition wall 50 is set to be 50% or more of the inner diameter of the outflow hole 31a, the outer peripheral edge and the partition are closed when the valve body 60a is closed. It is possible to prevent the solid body from being sandwiched between the wall 50 and the inner peripheral surface of the wall 50, thereby further reliably closing the valve body 60a.

  FIG. 4 is a cross-sectional view of a main part of a modification of the discharge container 1 shown in FIG. In FIG. 4, members corresponding to the members described above are denoted by the same reference numerals.

  In the case shown in FIG. 1, the discharge cap 20 is formed by integrally forming the top wall portion 21 and the cylindrical wall portion 22, and the inner plug 30 is formed separately from the discharge cap 20. On the other hand, in the discharge container 101 of the modification shown in FIG. 4, 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 Are formed integrally with the cylindrical wall portion 22 of the discharge cap 20.

  In this case, an air hole 102 that connects the intake hole 24 and the outside air introduction hole 15 is provided at a connection portion between the cylindrical wall portion 22 and the inner plug 30. Further, an alignment structure (not shown) is provided between the top wall portion 21 and the tubular wall portion 22 for defining the assembly direction of the top wall portion 21 with respect to the tubular wall portion 22.

  According to the configuration of this modification, the top wall portion 21 provided with the discharge cylinder 21 a can be formed of a material different from that of the cylinder wall portion 22. Accordingly, the discharge cylinder 21a may be formed of a softer material, or the top wall 21 may be colored in a different color from the cylinder wall 22 so as to increase the visibility of the discharge cylinder 21a. it can. Moreover, in the structure of this modification, since the top wall part 21 will be assembled | attached from the upper side with respect to what formed the cylinder wall part 22 and the inner stopper 30 integrally, the discharge cap 20 and the inner stopper 30 are included. In the assembling process for assembling the container 11 to the mouth portion 11 of the container body 10, the top wall portion 21 is prevented from falling off from the cylindrical wall portion 22 and the inner plug 30 that are integrally formed, and the assembling trouble is eliminated. be able to.

  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 check valve 60 is configured as a one-point valve. However, the check valve 60 is not limited to this. For example, the check valve 60 is formed by three elastically deformable arms arranged at equal intervals in the circumferential direction. Various configurations such as a three-point valve in which the main body 60a is integrally connected to the inner peripheral surface of the partition wall 50 can be employed.

  Moreover, in the said embodiment, although the container main body 10 is made into the lamination peeling container which laminated | stacked the inner layer body 14 on the inner surface of the outer layer body 13 so that peeling was possible, not only this but the inner layer body 14 is made into an outer layer body. It is good also as a built-in type double container built in 13 inside. Furthermore, the container body 10 is not limited to a double container including the outer layer body 13 and the inner layer body 14, and can be formed into a normal container that does not include the inner layer body 14. In this case, the configuration may be such that the intake hole 24, the outside air check valve 42, the air flow path 70, and the like are not provided.

  Furthermore, the discharge containers 1 and 101 are not limited to the relatively high-viscosity contents including solids, but are, for example, seasoned liquids such as soy sauce or liquid contents or kneaded contents such as cosmetics. It can also be used for the purpose of accommodating other contents such as objects.

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 part 35 Relief part 36 Vent hole 40 Valve seat part 40a Tip surface 50 Partition wall 51 Flow path 60 Check valve 60a Valve body 60b Hinge portion 60c Projection portion 70 Air flow path 80 Outside air check valve 90 Cover body 91 Hinge 92 Seal wall 93 Knob portion 101 Discharge container 102 Air hole S Distance D Diameter H Projection height

Claims (7)

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 cap connected to the outflow hole, and a discharge cap attached to the port and covering the inner plug;
A cylindrical valve seat portion provided around the outflow hole in the inner plug, protruding toward the discharge port side and forming an escape portion on the outside;
A closed position that is provided between the inner plug and the discharge cap and that abuts the front end surface of the valve seat portion to close the outflow hole, and an opening that opens the outflow hole away from the front end surface of the valve seat portion. A discharge container comprising a check valve that can be opened and closed between positions.   The discharge container according to claim 1, wherein a distal end surface of the valve seat portion is formed in a convex curved shape toward the discharge port side. Between the inner plug and the discharge cap, a cylindrical partition wall that partitions the flow path from the outflow hole to the discharge port is mounted,
The discharge container according to claim 1 or 2, wherein the check valve is configured as a one-point valve integrally connected to the partition wall via a hinge portion. The container body is a double container having an outer layer body provided with an outside air introduction hole in a portion corresponding to the mouth portion, and an inner layer body capable of volumetric deformation accommodated inside the outer layer body,
Between the discharge cap and the mouth, an air flow path is provided that communicates with the outside air introduction hole and communicates with the outside of the discharge cap through an intake hole provided in the discharge cap.
The discharge container according to claim 3, wherein a check valve for outside air that opens and closes the intake hole is integrally provided on an outer peripheral surface of the partition wall.   The discharge container according to claim 3 or 4, wherein an interval between an outer peripheral edge of the check valve and an inner peripheral surface of the partition wall is 50% or more of an inner diameter of the outflow hole.   The discharge container according to any one of claims 1 to 5, wherein a protruding height of the valve seat portion with respect to the inner plug is 50% or more of an inner diameter of the outflow hole.   The discharge container according to any one of claims 1 to 6, which is used for containing kneaded contents.

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