JP6537436B2 - Dispensing container - Google Patents

Description

  The present invention relates to a discharge container in which a discharge cap having a discharge port is attached to the mouth of a container body for containing contents, and in particular, a relatively viscous liquid containing, for example, some solid matter such as sauce or miso. The invention relates to a dispensing container suitable for containing high contents.

  Conventionally, it has a configuration in which a discharge cap having a discharge port is attached to the mouth of a container body for containing contents, and is stored in the container body by pressing (squeezing) the body of the container body. There is known a discharge container capable of discharging a content from a discharge port by a desired amount.

  In addition, as such a discharge container, one having a check valve for permitting the discharge of the contents from the container body through the discharge port while blocking the inflow of the contents and the outside air into the container body. Are known.

  For example, in Patent Document 1, a container main body is configured as a double container in which an inner layer body (inner container) capable of volume reduction deformation is accommodated inside an outer layer body (outer container), and a discharge cap (pouring cap member) The discharge container of the structure which provided the nonreturn valve between inside plugs (substrate member) is described. In the discharge container having such a configuration, after pressing the body portion of the container body to discharge the contents, when the pressure on the body portion is released, the outflow hole provided in the inside plug is closed by the check valve and the discharge is performed. The inflow of contents and outside air from the outlet (pouring outlet) toward the container body is prevented, and outside air is introduced between the outer layer body and the inner layer body from the intake hole (communication hole) provided in the discharge cap Since the outer layer body can be restored to its original shape while reducing the volume and deformation of the body, the contents are discharged without replacing the air with the outside air, which makes it difficult to touch the contents remaining inside the container body with air. It is possible to suppress its deterioration and deterioration.

JP 2011-230840 A

  Although the above-mentioned discharge container is often used for the use which stores liquid contents, such as soy sauce and cosmetics, relatively high-viscosity contents including some solid substances, such as sauce and miso, for example There is also a desire to use for applications that contain objects.

  However, in the conventional discharge container, the upper surface where the outlet hole of the inner plug opens is formed as a flat surface, and the flat upper surface is brought into surface contact with a plate-like check valve to close the outlet hole. Therefore, when used for applications containing relatively viscous contents containing solids, solids may get caught between the check valve and the upper surface of the inner plug and the check valve can not be closed. There was a problem of that.

  An object of the present invention is to solve such a problem, and an object thereof is to reverse contents after discharging the contents even if the contents having relatively high viscosity including some solid substances are contained. It is providing the discharge container which can close a stop valve reliably.

The discharge container of the present invention is provided with a container main body provided with a cylindrical opening and a body connected to the opening, and an outlet hole for contents, and the outlet container is attached to the opening end of the opening. It has an inside plug which covers an opening, and a discharge port which leads to the above-mentioned outflow hole, and is attached to the above-mentioned mouth and provided with a discharge cap which covers the above-mentioned inside plug, It is provided between a cylindrical valve seat that protrudes toward the side and forms an escape portion, and between the inner plug and the discharge cap, and is in contact with the tip end face of the valve seat and the outflow hole have a, a check valve opened and closed between an open position opening said outlet hole away from the distal end surface of the valve seat portion and a closed position for closing the valve seat portion, the distal end from the base end side characterized that you have a tapered shape gradually outer diameter reduced in diameter toward the side.

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

  In the discharge container according to the present invention, in the above configuration, a cylindrical partition wall is formed between the inner plug and the discharge cap to define a flow passage from the outlet hole to the discharge port. Preferably, the valve is configured as a one-point valve integrally connected to the partition wall via a hinge.

  In the discharge container according to the present invention, in the above configuration, the container main body includes an outer layer body having an outside air introduction hole at a portion corresponding to the opening, and a volume-reducible inner layer body accommodated inside the outer layer body. Air between the discharge cap and the opening, the air being able to communicate with the outside air introduction hole and to be communicated with the outside of the discharge cap through an air intake hole provided in the discharge cap It is preferable that a flow passage is provided, and an outside air check valve for opening and closing the intake hole is integrally provided on an outer peripheral surface of the partition wall.

  In the discharge container of the present invention according to the above-mentioned configuration, it is preferable that a distance 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.

  In the discharge container of the present invention according to the above-mentioned configuration, preferably, the protruding height of the valve seat portion with respect to the inner plug is 50% or more of the inner diameter of the outflow hole.

  It is preferable that the discharge container of this invention is used for the use which accommodates the content of paste-like in said structure.

  According to the present invention, since the inner plug is provided with the cylindrical valve seat that protrudes toward the discharge port and forms the escape part to the outside, the container body is compared with some solid substances. Even in the case where a content having a high target viscosity is contained, the solid matter contained in the content is guided to the relief portion without being pinched between the tip end face of the valve seat portion and the check valve, Can prevent pinching between the end face of the valve seat and the check valve, and the check valve can be reliably closed after the content is discharged. Thus, the dispensing container can be made suitable for use to accommodate relatively viscous contents, including some solids.

  Thus, according to the present invention, it is possible to provide a discharge container capable of reliably closing the check valve after discharging the content even if the content having a relatively high viscosity including some solid matter is contained. Can.

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 in alignment with the AA in FIG. It is sectional drawing which shows the state which a non-return valve opens and the content is 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 more specifically illustrated and described with reference to the drawings.

  As shown in FIG. 1, the 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 40 and a check valve 60. This discharge container 1 can be used, for example, for use for containing relatively viscous contents, such as sauces and miso, containing some solid matter.

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

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

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

  In the present embodiment, the container body 10 is configured as a double container (laminated peeling container) including the outer layer body 13 and the inner layer body 14 housed inside the outer layer body 13.

  The inner layer body 14 is formed of, for example, a synthetic resin material in the form of a thin bag which can be reduced in volume and deformed, and is laminated on the inner surface of the outer layer body 13 so as to be peelable. The inner layer 14 wraps around to the opening end of the opening 11 of the container main body 10 and is open at the opening end, and the inside is the above-mentioned storage chamber 12a.

  The outer layer body 13 is formed of, for example, a synthetic resin material in a bottle shape having a predetermined rigidity, and constitutes an outer shell of the container main body 10. The portion of the outer layer body 13 corresponding to the body portion 12 is squeezable (pressable) and has restoration to the original shape. Further, at a portion corresponding to the opening 11 of the outer layer 13, an outside air introduction hole 15 is provided which penetrates the outer layer 13 in the radial direction and communicates between the inner layer 14 and the outer layer 13. In the illustrated case, at the portion corresponding to the opening 11 of the outer layer body 13, two outside air introduction holes 15 are provided in an opposing arrangement across the axis, but at least one outside air introduction hole 15 is provided. It should just be.

  The container body 10 extends in the longitudinal direction between the outer layer 13 and the inner layer 14 from the mouth 11 to the bottom of the body 12 to partially cover the inner layer 14 with respect to the outer layer 13. A plurality of adhesive layers (not shown) adhered to the substrate may be provided. In this case, it is preferable to provide a plurality of outside air introduction holes 15 communicating between the inner layer body 14 and the outer layer body 13 in the portion between the respective adhesive layers in the portion corresponding to the opening 11 of the outer layer body 13. In addition, the container main body 10 may have, for example, a configuration in which barrier layers having a barrier property against oxygen and water vapor are stacked and a barrier property may be enhanced by various coatings.

  The discharge cap 20 is attached to the mouth 11 of the container body 10. The discharge cap 20 is formed of a synthetic resin material in a top cylindrical shape including a top wall 21 covering the opening of the opening 11 and a cylindrical cylindrical wall 22 covering the outer periphery of the opening 11. A female screw 22 a is provided on the inner peripheral surface of the cylindrical wall portion 22, and the female screw 22 a is screwed to the male screw 11 a provided on the outer peripheral surface of the mouth portion 11 to make the discharge cap 20 the opening of the container body 10. It is to be attached to the part 11.

  The top wall portion 21 is integrally provided with a discharge cylinder 21 a projecting upward from the top wall portion 21. The discharge cylinder 21 a is disposed offset from the axial center of the substantially circular top wall portion 21, and the inside thereof is a discharge opening 23 for contents.

  The inside plug 30 is attached to the inside of the discharge cap 20 and is attached to the opening end of the mouth 11 so as to cover the opening of the mouth 11. The inner plug 30 is made of a synthetic resin, and from the outer peripheral edge of the main body wall 31 and the main body wall 31 which are arranged at intervals in the axial direction with respect to the top wall 21 inside the discharge cap 20 And a support cylinder portion 32 extending toward the top wall 21 side. The upper end of the support cylindrical portion 32 is in contact with the lower surface of the top wall 21 and is fitted to the inner surface of the cylindrical wall 22 at the outer peripheral portion, whereby the inner plug 30 is fixed and 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 when the seal cylinder 33 is fitted to the inner peripheral surface of the opening 11, the inside plug 30 is open at the main body wall 31. It is attached to the open end of 11 and covers the opening of the mouth 11. The inside plug 30 is covered by the discharge cap 20.

  At the axial center of the main body wall 31 of the inside plug 30, an outflow hole 31a of the contents is provided. The outflow hole 31a is formed in a circular shape, and can penetrate the main body wall 31 of the inner plug 30 from front to back, and can be connected to the discharge port 23 provided on the top wall 21 of the discharge cap 20. . The contents accommodated in the accommodation chamber 12a can flow out toward the discharge port 23 through the outflow hole 31a.

  The valve seat portion 40 is integrally provided on the main body wall portion 31 of the inside plug 30. The valve seat portion 40 is formed in a cylindrical shape surrounding the outflow hole 31 a, and the upper end of the valve seat portion 40 is directed toward the discharge port 23 so that the tip end is positioned closer to the discharge port 23 than the proximal end connected to the body wall portion 31. Projected into In the case illustrated, the valve seat portion 40 is formed in a tapered shape in which the outer diameter gradually decreases from the proximal end side toward the distal end side. The tip end surface 40a of the valve seat portion 40 facing upward is a portion serving as a valve seat of the check valve 60. The tip end surface 40a has a convex curved shape toward the discharge port 23 (upper side). It is formed in the tapering shape where the radial direction width becomes narrow.

  Further, a 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, a cylindrical wall portion 34 is integrally provided on the inside plug 30 at an interval 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. It is configured as an annular recess between them.

  A partition wall 50 is mounted between the top wall 21 of the discharge cap 20 and the main body wall 31 of the inner plug 30. The partition wall 50 is formed in a cylindrical shape, for example, of low density polyethylene (soft polyethylene), and one end thereof is fitted in the annular groove 21b provided on the lower surface of the top wall portion 21, and the other end is the inside plug 30. The annular groove 31 b provided on the upper surface of the main body wall 31 is fixedly held between the top wall 21 and the main body wall 31. The space between the top wall 21 of the discharge cap 20 and the body wall 31 of the inner plug 30 is provided in the top wall 21 from the outflow hole 31 a provided in the body wall 31 by the partition wall 50. A flow path (an inner portion of the dividing wall 50) 51 which reaches the discharge port 23 is defined.

  The check valve 60 is provided between the top wall 21 of the discharge cap 20 and the main body wall 31 of the inner plug 30 so as to be located radially inward of the partition wall 50, that is, inside the flow passage 51. In the illustrated case, the check valve 60 is formed of the same material as the partition wall 50. As shown in FIG. 2, the check valve 60 includes a valve main body 60 a formed in a circular plate shape having a diameter larger than the tip surface 40 a of the valve seat 40, and the valve main body 60 a. And a hinge portion 60b integrally connected to the circumferential surface. That is, the check valve 60 is configured as a so-called one-point valve in which the valve body 60a is supported at one point on the partition wall 50 by the hinge portion 60b and pivots 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 31 a by the lower surface of the valve main body 60 a contacting the tip surface 40 a of the valve seat 40 over the entire circumference. . On the other hand, when the body 12 is squeezed and the contents are pushed out from the storage chamber 12a toward the outflow hole 31a, as shown in FIG. 3, the valve body 60a swings about the hinge portion 60b and the valve seat It leaves upward from the tip surface 40a of the portion 40, whereby the check valve 60 opens the outflow hole 31a. As described above, the check valve 60 can be opened and closed freely between the open position where the valve body 60 a closes the outflow hole 31 a and the open position where the outflow hole 31 a is opened.

  A hemispherical projection 60c is integrally provided on the upper surface of the valve main body 60a at the center thereof, and the outer peripheral edge portion of the valve main body 60a has a predetermined rigidity with respect to the valve seat 40 by the projection 60c. Can be abutted while securing the

  As shown in FIG. 1, the radially-directed space S between the outer peripheral edge of the valve body 60a and the inner circumferential surface of the partition wall 50 is 50% or more of the diameter (inner diameter) D of the outflow hole 31a. It is set to.

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

  As shown in FIG. 1, an air vent 36 and a top wall 21 provided in the inside plug 30 and in communication with the outside air introducing hole 15 provided in the mouth 11 between the discharge cap 20 and the mouth 11. An air flow passage 70 which can be communicated with the outside of the discharge cap 20 via an intake hole 24 provided in the space is defined. The lower end of the cylindrical wall portion 22 airtightly abuts on the entire periphery of the sealing step portion 11 b to seal the air flow path 70. Further, a slit extending in the longitudinal 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 70 is configured by the slit. Note that air may be circulated along the male screw 11a and the female screw 22a without providing a slit in the male screw 11a.

  In the normal state, the outer peripheral surface of the partition wall 50 elastically contacts the lower surface of the top wall 21 to close the air inlet 24 while the pressure between the outer layer 13 and the inner layer 14 becomes lower. An open air check valve 80 is provided integrally with the air passage 70 so as to make the air intake hole 24 communicate with the air flow passage 70 at a distance from the lower surface thereof. In the illustrated case, the outside air check valve 80 is formed in the shape of a thin ring from the same material as the partition wall 50, and is configured to resiliently contact the lower surface of the top wall 21 at the outer peripheral edge thereof.

  The discharge cap 20 can also be configured to include a lid 90. In the case shown, the lid 90, also called an overcap, is formed in a top cylindrical shape having substantially the same diameter as the discharge cap 20, and is rotatably connected to the top wall 21 of the discharge cap 20 by a hinge 91. The discharge cylinder 21 a can be covered together with the top wall 21. A cylindrical seal wall 92 is integrally provided on the inner surface of the lid 90, and 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 opposite to the hinge 91 of the lid 90, there is provided a knob 93 which is a finger hook when the lid 90 is opened.

  The lid 90 is not limited to the structure integrally coupled to the discharge cap 20 by the hinge 91, but may be formed separately from the discharge cap 20 and attached to the discharge cap 20 by screwing or undercutting. .

  In the discharge container 1 having such a configuration, the body 12 is squeezed while the container body 10 is inclined so that the discharge cylinder 21a faces downward with the lid 90 opened, as shown in FIG. By opening the valve 60, the contents inside the storage chamber 12a can be made to flow out from the outflow hole 31a to the discharge port 23, and can be discharged from the discharge port 23 to the outside. At this time, since the intake holes 24 are closed by the check valve 80 for outside air, the air existing between the outer layer body 13 and the inner layer body 14 does not leak to the outside, and hence the cylinder of the outer layer body 13 By squeezing the part 12, the inner layer body 14 can be pressed and the contents can be pushed out toward the outflow hole 31a.

  In addition, since the discharge cylinder 21a and the discharge port 23 are provided to be shifted toward the opposite side across the valve body 60a with respect to the hinge portion 60b of the check valve 60 with respect to the valve seat portion 40, the valve body 60a The upper end of the valve body 60a does not overlap the discharge port 23 when the valve is opened. As a result, the content that has flowed out from the outflow hole 31 a toward the flow path 51 can be efficiently discharged from the discharge port 23 to the outside. The direction in which the discharge cylinder 21a or the discharge port 23 deviates with respect to the valve seat portion 40 is preferably the above direction, but the direction may be another direction, and the discharge cylinder 21a or the discharge port 23 may be a valve. It may be arranged coaxially with the seat 40.

  On the other hand, when the squeeze of the body 12 is released after the content is discharged, the outflow hole 31a is closed by the check valve 60 as shown by the 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 through the air flow passage 70 and the outside air introducing hole 15. Thus, the outer layer body 13 is restored to the original shape while reducing the volume of the inner layer body 14, and the introduction of the outside air into the inner layer body 14, ie, the storage chamber 12a, is suppressed. The contact of the contents with the air can be reduced to suppress the deterioration and deterioration of the contents.

  Here, in the discharge container 1 of 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 radially outward. When the container body 10 contains a relatively high viscosity content containing some solid matter, when the squeeze of the body 12 is released after the content is discharged and the valve main body 60a is closed, the content Even if solid matter contained in the valve seat portion 40 is present between the tip end face 40a of the valve seat portion 40 and the valve main body 60a, the solid matter is held between the tip end face 40a of the valve seat portion 40 and the valve body 60a of the check valve 60. It can guide toward the relief part 35, without pinching in between, and it can suppress that the said fixed thing pinches between the front end surface 40a of the valve seat part 40, and the valve main body 60a. In particular, in the present embodiment, since the valve seat portion 40 is formed in a tapered shape in which the outer diameter gradually decreases from the proximal end toward the distal end, the solid contained in the content can be obtained. It can guide to escape part 35 more effectively. As a result, it is possible to reliably close the valve body 60a by suppressing the fixed object from being pinched between the distal end surface 40a of the valve seat 40 and the valve body 60a after the content is discharged. Therefore, this discharge container 1 can be made suitable for the use which accommodates the content with comparatively high viscosity containing a solid substance.

  Further, in the discharge container 1 of the present invention, since the tip end surface 40a of the cylindrical valve seat portion 40 is formed in a curved shape convex toward the discharge port 23 side, the discharge hole is a closed position. The valve body 60a of the check valve 60 for closing 31a comes in line contact with the tip surface 40a of the valve seat 40 at its lower surface. Therefore, when the contents having a relatively high viscosity are stored in the storage chamber 12a of the container main body 10, when the squeeze of the body 12 is released and the valve main body 60a is closed after discharging the contents. Even if solid matter contained in the contents is present between the end face 40a of the valve seat 40 and the valve body 60a, the solid matter is not pinched in the line contact portion between the end face 40a and the valve body 60a. It can be effectively moved along the curved tip surface 40 a to the escape portion 35 on the outside of the valve seat 40 or the outflow hole 31 a on the inside of the valve seat 40. At this time, the valve body 60a is formed to have a diameter larger than that of the valve seat portion 40, and the portion of the outer peripheral edge thereof protrudes radially outward from the valve seat portion 40. Therefore, between the tip surface 40a and the valve body 60a The solid matter present in the valve seat 40 can be more reliably moved toward the relief 35 on the outside of the valve seat 40.

  As described above, in the discharge container 1 of the present invention, by forming the tip end surface 40a of the cylindrical valve seat portion 40 in a curved shape convex toward the discharge port 23, the solid substance is the valve body 60a and the tip The check valve 60 can be reliably closed after the content is discharged by further reliably suppressing pinching with the surface 40 a.

  Further, since the annular escape portion 35 is provided on the outside of the valve seat portion 40, when the solid substance contained in the contents is moved to the outside of the valve seat portion 40 along the curved tip surface 40a. The solid can be stored in the relief portion 35. Furthermore, since the protrusion height H of the valve seat portion 40, that is, the depth of the relief portion 35 is 50% or more of the inner diameter of the outflow hole 31a, the solid matter accumulated in the relief portion 35 is contained in the valve body 60a. The valve body 60a can be reliably closed by preventing the valve body 60a from coming into contact with the valve body 60a.

  Furthermore, since the space S 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 inner diameter of the outflow hole 31a, when the valve body 60a is closed, the outer peripheral edge and the partition The valve body 60a can be more reliably closed by suppressing the solid matter from being sandwiched between the inner circumferential surface of the wall 50 and the wall 50.

  FIG. 4 is a cross-sectional view of an essential part of a modification of the discharge container 1 shown in FIG. 1 in a side view. 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 integrally with the top wall 21 and the cylinder wall 22, and the inside 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 21 and the cylinder wall 22 separately formed, and the inside plug 30 is formed. Is integrally formed with the cylindrical wall portion 22 of the discharge cap 20.

  In this case, an air hole 102 is provided in the connecting portion between the cylindrical wall portion 22 and the inner plug 30 so as to allow the intake hole 24 and the outside air introduction hole 15 to communicate with each other. Further, an alignment structure (not shown) is provided between the top wall 21 and the cylinder wall 22 for defining the mounting direction of the top wall 21 with the cylinder wall 22.

  According to the configuration of this modification, the top wall 21 provided with the discharge cylinder 21 a can be formed of a material different from that of the cylinder wall 22. Thus, the discharge cylinder 21a may be formed of a softer material, or the top wall 21 may be colored in a color different from that of the cylinder wall 22 to improve the visibility of the discharge cylinder 21a. it can. Further, in the configuration of this modification, the top wall portion 21 is assembled from the upper side to the one in which the cylindrical wall portion 22 and the inner plug 30 are integrally formed, so the discharge cap 20 and the inner plug 30 are assembled. In the assembling step of assembling the container body 10 to the opening 11 of the container body 10, the top wall 21 is prevented from dropping off from the one in which the cylindrical wall 22 and the inner plug 30 are integrally formed, and the assembling defect is eliminated. be able to.

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

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

  Moreover, in the said embodiment, although the container main body 10 is set as the lamination peeling container which laminatedly arranged 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 an outer layer body It is good also as a built-in type double container integrated in 13 inside. Furthermore, the container main body 10 can be formed not only in the double container provided with the outer layer 13 and the inner layer 14 but also in an ordinary container not provided with the inner layer 14. In this case, the air intake hole 24, the outside air check valve 42, the air flow path 70 and the like can be omitted.

  Furthermore, the discharge container 1, 101 is not limited to contents having relatively high viscosity including solids, for example, contents having relatively low viscosity such as seasoning liquid such as soy sauce, cosmetics, etc. It can also be used for the purpose of containing other contents such as objects.

DESCRIPTION OF SYMBOLS 1 discharge container 10 container main body 11 opening 11a external thread 11b sealing step 12 body 12a storage chamber 13 outer layer body 14 inner layer body 15 outer air introduction hole 20 discharge cap 21 top wall 21a discharge cylinder 21b annular groove 22 cylinder wall 22a Female screw 23 Discharge port 24 Air intake hole 30 Medium plug 31 Body wall 31a Flow hole 31b Annular groove 32 Support cylinder 33 Seal cylinder 34 Cylindrical wall 35 Relief wall 36 Vent 40 Valve seat 40a Tip surface 50 Partition wall 51 Flow path 60 check valve 60a valve body 60b hinge portion 60c protrusion 70 air flow path 80 check valve for open air 90 cover 91 hinge 92 seal wall 93 knob 101 discharge container 102 air hole S interval D diameter H protrusion height

Claims (7)

A container body provided with a cylindrical opening and a body connected to the opening;
An internal plug provided with an outlet for contents and attached to the open end of the opening to cover the opening of the opening;
A discharge cap provided with a discharge port connected to the outflow hole, the discharge cap being attached to the port and covering the inside plug;
A cylindrical valve seat portion which is provided in the inner plug so as to surround the outflow hole, and which protrudes toward the discharge port and which forms an escape portion outward;
A closed position which is provided between the inner plug and the discharge cap and which abuts on the tip end surface of the valve seat to close the outflow hole and opens the outflow hole away from the tip end surface of the valve seat a check valve opened and closed between a position to have a,
Dispensing container wherein the valve seat portion, characterized in isosamples toward the proximal side to the distal end side is formed gradually in a tapered shape having an outer diameter reduced in diameter.   The discharge container according to claim 1, wherein a tip end surface of the valve seat portion is formed in a curved shape that is convex toward the side of the discharge port. A cylindrical partition wall is mounted between the inner plug and the discharge cap, which defines a flow passage from the outflow hole to the discharge port,
The discharge container according to claim 1, wherein the check valve is configured as a one-point valve integrally connected to the partition wall via a hinge. The container main body is a double container having an outer layer body provided with an outside air introduction hole at a portion corresponding to the opening, and a volume-reducible inner layer body accommodated inside the outer layer body,
An air flow path is provided between the discharge cap and the opening, the air flow path communicating with the outside air introduction hole and communicating with the outside of the discharge cap through an intake hole provided in the discharge cap.
The discharge container according to claim 3, wherein an outside air check valve for opening and closing 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 a distance 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 projecting 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 storing paste-like contents.

Images