Discharge container

Abstract

To provide a discharge container which can prevent a content from overflowing from a discharge cylinder, when a lid body is closed.SOLUTION: A discharge container 1 has a synthetic resin container body 10 which stores a content 2 and a discharge cap 20 mounted on a mouth part 10a of the container body 10, wherein the discharge cap 20 includes a cap body 21 which includes a discharge cylinder 23 and is mounted on the mouth part 10a, a lid body 24 which includes a closing plug 26 inserted into the discharge cylinder 23 and is openable / closably mounted on the cap body 21, an inside plug 30 which includes an outflow cylinder 31 communicating with the discharge cylinder 23 and is provided inside the cap body 21, and a non-return valve 40 for a content which is mounted on the outflow cylinder 31 and opens / closes the outflow cylinder 31. The inside plug 30 has a fixed part 32 fixed to the cap body 21, and an elastic modification part 33 which connects the fixed part 32 and the outflow cylinder 31 and is elastically deformable in a direction at which the outflow cylinder 31 approaches the discharge cylinder 23.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a dispensing container having a container body made of synthetic resin for accommodating contents, and a dispensing cap attached to the opening of the container body. [Background technology]

[0002] 2. Description of the Related Art As a container for storing liquid contents such as soy sauce or cooking oil, a dispensing container having a synthetic resin container body for storing the contents and a dispensing cap attached to the mouth of the container body is known.

[0003] Conventionally, as a discharge container as described above, there has been known a double container in which the container body is configured with an outer layer forming the outer shell, an inner layer arranged inside the outer layer that can be freely reduced in volume, and an outside air inlet port communicating between the outer layer and the inner layer, and the discharge cap is configured to have a cap body having a discharge tube and attached to the mouth, a lid body having a blocking plug to be inserted into the discharge tube and attached to the cap body so as to be openable and closable, an inner plug having an outlet communicating with the discharge tube and provided inside the cap body, and a check valve for the contents that opens and closes the outlet (see, for example, Patent Document 1). In a discharge container configured as described above, by squeezing (pressing) the body of the container body with the lid open, the check valve for the contents opens and the contents stored in the container body can be discharged to the outside through the outflow hole and the discharge tube. Furthermore, when the squeeze on the body is released after the contents have been discharged, the check valve for the contents closes and the inflow of outside air into the interior of the container body is prevented, thereby preventing the contents from coming into contact with air and preventing their deterioration or alteration. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-159915 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional discharge container, after the contents are discharged, the inside of the discharge tube becomes filled with the contents, so when the lid is closed and the blocking plug is inserted into the discharge tube, the contents filling the discharge tube are pushed out by the blocking plug and overflow from the discharge tube, which could cause problems such as the cap body becoming soiled with the contents.

[0006] The present invention has been made in consideration of such problems, and its purpose is to provide a discharge container that can prevent the contents from overflowing from the discharge tube when the lid is closed. [Means for solving the problem]

[0007] The discharge container of the present invention is a discharge container having a container body made of synthetic resin for storing contents, and a discharge cap attached to the mouth of the container body, wherein the discharge cap has a discharge tube, a cap body attached to the mouth, a blocking plug inserted into the discharge tube, a lid body attached to the cap body so as to be freely opened and closed, an outflow tube communicating with the discharge tube, an inner plug provided inside the cap body, and a check valve for contents attached to the outflow tube for opening and closing the outflow tube, and is characterized in that the inner plug has a fixed part fixed to the cap body, and an elastic deformation part that connects the fixed part and the outflow tube and is elastically deformable in the direction in which the outflow tube approaches the discharge tube.

[0008] In the above-mentioned configuration of the discharge container of the present invention, it is preferable that the fixing portion has a first fixing portion directly fixed to the cap body and a second fixing portion that is separate from the first fixing portion and fixed to the first fixing portion, and that the second fixing portion, the elastic deformation portion and the outflow tube are integrally formed.

[0009] In the above-mentioned configuration of the discharge container of the present invention, it is preferable that the container body is a double container having an outer layer constituting the outer shell of the container body, an inner layer which is freely deformable and can be reduced in volume and is arranged inside the outer layer, and an outside air inlet port which communicates between the outer layer and the inner layer.

[0010] In the above-mentioned configuration of the discharge container of the present invention, it is preferable that the check valve for the contents has a support fixed to the outflow tube, a valve body for the contents arranged at the upper end of the outflow tube, and a plurality of elastic legs which connect the support and the valve body for the contents and which are freely elastically deformable in the direction away from the outflow tube. Effect of the Invention

[0011] According to the present invention, it is possible to provide a discharge container capable of preventing the contents from overflowing from the discharge tube when the lid body is closed. [Brief description of the drawings]

[0012] [Figure 1] 1 is a cross-sectional view of a main part of a discharge container according to an embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view of the discharge container shown in FIG. 1 with the lid body open. [Diagram 3] 2 is a cross-sectional view of the discharge container shown in FIG. 1 in a state where the container body is squeezed and the outflow tube moves to the side of the discharge tube. [Figure 4] 2 is a cross-sectional view of the discharge container shown in FIG. 1 in a state where the check valve for contents is open. [Diagram 5] 2 is a cross-sectional view of the discharge container shown in FIG. 1 in a state where the squeeze of the container body is released and the check valve for contents is closed. [Figure 6] 2 is a cross-sectional view of the discharge container shown in FIG. 1 in a state where the outflow tube has moved to its original position after the check valve for contents has closed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] A discharge container 1 according to one embodiment of the present invention will be illustrated and described in detail below with reference to the drawings.

[0014] In this specification and the claims, the up-down direction refers to the up-down direction when the discharge container 1 is in the upright position shown in FIG.

[0015] As shown in FIG. 1, a dispensing container 1 according to one embodiment of the present invention has a container body 10 and a dispensing cap 20.

[0016] The container body 10 stores the contents 2. The contents 2 stored in the container body 10 are preferably liquids such as liquid seasonings with relatively low viscosity, such as soy sauce, or edible oil with relatively high viscosity, but may also be an aggregate of solids having fluidity.

[0017] In this embodiment, the container body 10 is a double container (delaminated peelable container) made of synthetic resin having an outer layer 11 and an inner layer 12. The outer shape of the container body 10 is a bottle shape having a cylindrical mouth portion 10a.

[0018] The outer layer 11 constitutes the outer shell of the container body 10 and has a bottle shape corresponding to the container body 10. The outer layer 11 may be formed of a synthetic resin material such as polypropylene (PP), polyethylene (PE), or polyethylene terephthalate (PET). The outer layer 11 has a body portion (not shown) that is integrally connected to the lower end of the mouth portion 10a. The body portion is flexible and can be squeezed (pressed). That is, the body portion of the outer layer 11 can be depressed by being squeezed, and when the squeeze is released, it can restore itself to its original shape from the depressed state by its own elasticity.

[0019] The inner layer body 12 is made of a synthetic resin material such as ethylene-vinyl alcohol copolymer (EVOH) or polyethylene terephthalate (PET) and is formed into a bag shape that is thinner and more flexible than the outer layer body 11 and can be easily reduced in volume. The inner layer body 12 is arranged inside the outer layer body 11 in a state where it is peelably laminated on the inner surface of the outer layer body 11. Thus, in this embodiment, the container body 10 is configured as a laminated peelable container, which is a type of double container. The opening of the inner layer body 12 is connected to the opening end of the mouth part 10a of the outer layer body 11, and the inside of the inner layer body 12 is a storage space 12a for the contents 2. As the contents 2 flow out from the storage space 12a, the inner layer body 12 can be peeled off from the inner surface of the outer layer body 11 and can be reduced in volume so as to reduce its internal volume.

[0020] The container body 10 having the above configuration can be formed, for example, by extrusion blow molding in which a synthetic resin material for the outer layer 11 and a synthetic resin for the inner layer 12, which have low compatibility, are co-extruded to form a laminated parison, and this laminated parison is blow molded using a mold. The container body 10 can also be formed by biaxially stretching blow molding a double preform made of synthetic resin, in which an inner preform for forming the inner layer 12 is incorporated inside an outer preform for forming the outer layer 11. In this case, the double preform can be one in which both the outer preform and the inner preform are made of polyethylene terephthalate (PET).

[0021] The container body 10 is not limited to the above-mentioned peelable laminate container, but may be a double container having an outer layer 11 and an inner layer 12 formed separately from the outer layer 11 incorporated inside the outer layer 11.

[0022] An outside air inlet 13 that communicates between the outer layer 11 and the inner layer 12 is provided in the portion that constitutes the mouth portion 10a of the outer layer 11. The outside air inlet 13 is provided as a through hole that penetrates the portion that constitutes the mouth portion 10a of the outer layer 11, and can introduce outside air (air) from outside the container body 10 between the outer layer 11 and the inner layer 12.

[0023] In this embodiment, the outer layer body 11 has a pair of outside air inlets 13 facing each other across the axis O of the mouth portion 10a, but it is sufficient that the outer layer body 11 has at least one outside air inlet 13.

[0024] The discharge cap 20 is attached to the mouth portion 10a of the container body 10. The discharge cap 20 has a cap body 21 made of synthetic resin. The cap body 21 is a topped tube having a top wall 21a and a cylindrical mounting tube portion 21b provided integrally and continuously with the outer periphery of the top wall 21a, and is attached to the mouth portion 10a such that the mounting tube portion 21b surrounds the outer periphery of the mouth portion 10a and the top wall 21a covers the open end of the mouth portion 10a.

[0025] In the illustrated example, the mounting tube portion 21b has an internal thread 22 on its inner peripheral surface, which is screwed into an external thread 14 on the outer peripheral surface of the mouth portion 10a. This fixes the cap body 21 to the mouth portion 10a. The cap body 21 may be attached to the mouth portion 10a by tapping using an undercut engagement.

[0026] The discharge tube 23 is integrally provided on the upper surface of the top wall 21a. The discharge tube 23 extends vertically through the top wall 21a, and its inside is a discharge hole 23a. In this embodiment, the discharge tube 23 has a curled shape that gradually expands in diameter from the top wall 21a upward and curves outward. The shape of the discharge tube 23 is not limited to the curled shape described above. The discharge tube 23 is a part that discharges the content 2 stored in the storage space 12a of the container body 10 to the outside. In addition, a ring-shaped fitting protrusion 23b that protrudes radially inward is integrally provided on the inner circumferential surface near the base of the curled portion of the discharge tube 23.

[0027] A lid body 24 is provided integrally with the cap body 21. The lid body 24 is formed in a cylindrical shape with a top having approximately the same diameter as the mounting tube portion 21b of the cap body 21, and is connected to the cap body 21 at a part of its outer circumferential surface by a hinge 25. The lid body 24 can be opened and closed between a closed state (state shown in FIG. 1) in which it covers the upper part of the cap body 21, and an open state (state shown in FIG. 2) in which it rotates from the closed state about the hinge 25 to open the upper part of the cap body 21.

[0028] The lid 24 is provided with a blocking plug 26. In this embodiment, the blocking plug 26 is cylindrical and is provided integrally with the lid 24 on the back surface of the lid 24. The outer diameter of the blocking plug 26 is equal to the inner diameter of the portion of the discharge tube 23 where the fitting protrusion 23b is provided, and when the lid 24 is in a closed state, the blocking plug 26 is inserted into the discharge tube 23 and fits into the fitting protrusion 23b of the discharge tube 23. As a result, the discharge tube 23 is blocked by the blocking plug 26. On the other hand, when the lid 24 is opened, the blocking plug 26 is detached from the discharge tube 23, and the discharge tube 23, i.e., the discharge hole 23a, is opened.

[0029] The discharge cap 20 has an inner plug 30. The inner plug 30 is provided with an outlet tube 31 that communicates with the discharge tube 23, and is provided inside the cap body 21 to cover the open end of the mouth portion 10a.

[0030] In the discharge container 1 of this embodiment, the inside plug 30 has the above-mentioned outflow tube 31, a fixing part 32 fixed to the cap body 21, and an elastic deformation part 33 that connects the outflow tube 31 and the fixing part 32. In addition, the fixing part 32 of the inside plug 30 has a first fixing part 32a directly fixed to the cap body 21, and a second fixing part 32b that is separate from the first fixing part 32a and fixed to the first fixing part 32a.

[0031] The first fixing part 32a includes an upper wall 34 that covers the upper part of the mouth part 10a, and a cylindrical fitting wall 35 that is integral with the outer periphery of the upper wall 34 and stands upward, and is fixed to the cap body 21 by fitting the fitting wall 35 into the inside of the mounting tube part 21b. A fitting tube 36 that fits into the discharge tube 23 is integrally provided on the upper wall 34. In addition, a cylindrical fixing tube 37 is integrally provided between the upper wall 34 and the fitting wall 35.

[0032] The second fixed portion 32b has a cylindrical shape with a smaller diameter than the fixed cylinder 37, and is fitted and fixed inside the fixed cylinder 37. That is, the second fixed portion 32b is fitted and fixed to the fixed cylinder 37 and supported by the first fixed portion 32a, and is thereby fixed to the cap body 21 via the first fixed portion 32a.

[0033] The outflow tube 31 is cylindrical and extends in the vertical direction, with an outflow hole 31a formed inside. The outflow hole 31a communicates with the storage space 12a of the container body 10 at its lower end and with the discharge hole 23a of the discharge tube 23 at its upper end. Therefore, the contents 2 stored in the storage space 12a of the container body 10 can flow out from the upper end of the discharge tube 23 to the outside through the outflow hole 31a and the discharge hole 23a.

[0034] In this embodiment, the second fixed portion 32b, the elastic deformation portion 33, and the outflow tube 31 are integrally formed from a synthetic resin material. The elastic deformation portion 33 is an annular thin-walled portion that is connected to the lower end of the second fixed portion 32b and the lower end of the outflow tube 31 over the entire circumference, and in a natural state, the outer circumferential side that is connected to the lower end of the second fixed portion 32b is a stepped shape that is located slightly above the inner circumferential side that is connected to the lower end of the outflow tube 31. In addition, the elastic deformation portion 33 is elastically deformable from the natural state so that the inner circumferential side portion moves upward relative to the outer circumferential side portion. In other words, the elastic deformation portion 33 is elastically deformable in a direction in which the outflow tube 31 connected to the inside of the elastic deformation portion 33 approaches the discharge tube 23.

[0035] The discharge cap 20 has a check valve 40 for the contents that is attached to the outflow tube 31 and opens and closes the outflow tube 31. Specifically, the check valve 40 for the contents allows the outflow of the contents 2 from the storage space 12a of the container body 10 to the discharge tube 23 side through the outflow tube 31, and opens and closes the outflow hole 31a of the outflow tube 31 so as to prevent the contents 2 from flowing from the discharge tube 23 side into the storage space 12a of the container body 10 through the outflow tube 31.

[0036] In this embodiment, the check valve for contents 40 is configured to include a support 41 fixed to the outflow tube 31, a valve element for contents 42 arranged at the upper end of the outflow tube 31, and a plurality of elastic legs 43 that connect the support 41 and the valve element for contents 42 and are elastically deformable in the direction in which the valve element for contents 42 moves away from the outflow tube 31. More specifically, the support 41 has an inner peripheral portion 41a with a larger diameter than the outflow tube 31 and an outer peripheral portion 41b in an annular shape extending upward, and is fitted and fixed to the lower end portion of the outer peripheral surface of the outflow tube 31 at the inner peripheral portion 41a. The valve element for contents 42 is in the shape of a disk with a larger diameter than the outflow tube 31 and is arranged at the upper end of the outflow tube 31 to block the outflow tube 31, i.e., the outflow hole 31a. Although details are not shown, each of the multiple elastic legs 43 has an elongated shape that is elastically deformable, with one end integrally connected to the inner peripheral edge of the outer circumferential portion 41b of the support body 41 and the other end integrally connected to the outer peripheral edge of the contents valve body 42, and urges the contents valve body 42 toward the upper end of the outflow tube 31.

[0037] Here, when the body of the container body 10 is squeezed and the storage space 12a is pressurized while the outflow tube 31 is closed by the valve body for contents 42, the check valve for contents 40 is opened by the pressure. On the other hand, when the body of the container body 10 is squeezed and the storage space 12a is pressurized while the outflow tube 31 is closed by the valve body for contents 42, the elastic deformation part 33 provided on the inner plug 30 is elastically deformed by the pressure, and the outflow tube 31 is displaced toward the discharge tube 23. The check valve for contents 40 is configured so that the pressure in the storage space 12a required to open it is greater than the pressure in the storage space 12a required to elastically deform the elastic deformation part 33 and displace the outflow tube 31 toward the discharge tube 23. In other words, the discharge cap 20 is configured so that when the body of the container body 10 is squeezed and the storage space 12a is pressurized while the outflow tube 31 is closed by the valve body for the contents 42, first the elastic deformation portion 33 elastically deforms and the outflow tube 31 is displaced toward the discharge tube 23, and then the check valve for the contents 40 opens the outflow tube 31.

[0038] The check valve for contents 40 is configured such that a support body 41, a valve body for contents 42, and a plurality of elastic legs 43 are integrally formed from an elastic body such as synthetic rubber, elastomer, low density polyethylene (LDPE), etc. With such a configuration, the check valve for contents 40 can be easily attached to the outflow tube 31 by the simple task of simply fitting and fixing the inner peripheral portion 41a of the support body 41 to the outflow tube 31.

[0039] Furthermore, by mounting the check valve for contents 40 to the outflow tube 31, an outflow tube unit 50 is formed in which the check valve for contents 40 is mounted on an integrally molded product consisting of the second fixed part 32b, the elastic deformation part 33, and the outflow tube 31. Therefore, the inside plug 30 having the above configuration can be easily formed by the simple task of simply fitting and fixing the outflow tube unit 50 to the fixed tube 37 of the first fixed part 32a.

[0040] Between the first fixing portion 32a of the inside plug 30 and the cap body 21, there is provided an air passage 51 that communicates between the ventilation hole 27 provided in the top wall 21a of the cap body 21 and the outside air inlet 13. The lower end of the mounting tube portion 21b of the cap body 21 abuts over the entire circumference against the annular protrusion 15 provided on the outer circumferential surface at the base portion of the mouth portion 10a, and between the mouth portion 10a and the mounting tube portion 21b, there is provided an introduction passage 52 that communicates with the air passage 51 via a through hole 38 provided on the outer circumferential surface of the fitting wall 35. The outside air inlet 13 opens into the introduction passage 52 and communicates with the outside of the discharge cap 20 via the introduction passage 52, the through hole 38, the ventilation passage 51, and the ventilation hole 27.

[0041] An air check valve 60 is provided in the air passage 51 to open and close the air passage 51. The air check valve 60 opens and closes the air passage 51 so as to permit the flow of air (outside air) from the air vent 27 to the outside air inlet 13 via the air passage 51, and to prevent the flow of air from the outside air inlet 13 side to the air hole 27 via the air passage 51.

[0042] Next, the operation of the dispensing container 1 according to this embodiment having the above-mentioned configuration when dispensing the content 2 will be described.

[0043] When discharging the contents 2 from the dispensing container 1, first, the lid 24 is opened to open the discharge tube 23, i.e., the discharge hole 23a, as shown in Fig. 2. At this time, the outflow tube 31 is closed by the check valve 40 for the contents, and the elastic deformation part 33 is in the initial position where it is not elastically deformed.

[0044] Next, the body of the container body 10 is squeezed to discharge the contents 2. When the body of the container body 10 is squeezed, the air check valve 60 closes and air is retained between the outer layer 11 and the inner layer 12, so that by squeezing the body, the inner layer 12 can be deformed and reduced in volume through the air, thereby pressurizing the inside of the storage space 12a.

[0045] As shown in Fig. 3, when the body of the container body 10 is squeezed and the pressure inside the storage space 12a is increased, the elastic deformation portion 33 is pushed by the pressure and elastically deforms upward, and the outflow tube 31 is displaced from the initial position in a direction approaching the discharge tube 23. At this time, the check valve for contents 40 moves upward together with the outflow tube 31 while keeping the outflow tube 31 closed. When the outflow tube 31 is displaced together with the check valve for contents 40 in a direction approaching the discharge tube 23, the volume of the space 70 between the discharge tube 23 and the outflow tube 31 inside the discharge cap 20 decreases compared to before the displacement. The space 70 between the discharge tube 23 and the outflow tube 31 includes the space between the second fixed portion 32b and the outflow tube 31 and above the elastic deformation portion 33.

[0046] After the outflow tube 31 has been displaced from its initial position in a direction approaching the discharge tube 23, when the body of the container body 10 is further squeezed, the contents valve body 42 moves upward relative to the outflow tube 31 and separates from the outflow tube 31, as shown in Fig. 4. This causes the contents check valve 40 to enter an open state, and the outflow tube 31 or the outflow hole 31a communicates with the discharge tube 23 or the discharge hole 23a.

[0047] Therefore, by squeezing the trunk of the container body 10, the contents 2 stored in the storage space 12a can be discharged to the outside through the outflow tube 31 and the discharge tube 23.

[0048] After the contents 2 are discharged from the discharge tube 23, the squeeze of the body of the container body 10 is released, and the pressure in the storage space 12a drops. When the squeeze of the body is released and the pressure in the storage space 12a drops, as shown in Fig. 5, the valve body 42 for the contents moves down to a position where it abuts against the upper end of the outflow tube 31 due to the restoring force (elastic force) of the multiple elastic legs 43, while the outflow tube 31 remains displaced from the initial position in the direction approaching the discharge tube 23, and the outflow tube 31 is closed by the check valve 40 for the contents. At this time, the discharge hole 23a and the space 70 of the discharge tube 23 are filled with the contents 2 that flowed in during discharge.

[0049] When the squeeze of the body of the container body 10 is released, the pressure in the storage space 12a decreases, and the outflow tube 31 is closed by the check valve for contents 40, the elastic deformation part 33 returns to its original shape by its restoring force (elastic force) while the outflow tube 31 remains closed by the check valve for contents 40, and the outflow tube 31 descends to its initial position, as shown in Fig. 6. When the elastic deformation part 33 returns to its original shape and the outflow tube 31 descends, the volume of the space 70 increases accordingly, so that at least a part of the contents 2 inside the discharge tube 23, i.e., the contents 2 filling the discharge hole 23a, is sucked back into the space 70. In this embodiment, the contents 2 inside the discharge tube 23 is sucked back to the lower side of the fitting protrusion 23b.

[0050] When the body of the container body 10 is squeezed to discharge the content 2, and then the squeeze of the body of the container body 10 is released, negative pressure is generated between the outer layer 11 and the inner layer 12, as shown in Fig. 5, the air check valve 60 is opened, and outside air is introduced between the outer layer 11 and the inner layer 12 from the air vent 27 through the air passage 51, the through hole 38, the introduction passage 52, and the outside air introduction port 13. This allows the portion of the outer layer 11 corresponding to the body to be restored to its original shape while the inner layer 12 is kept volume-reduced and deformed.

[0051] In this manner, in the discharge container 1 according to the present embodiment, the inner plug 30 has the fixed part 32 (first fixed part 32a and second fixed part 32b) fixed to the cap body 21, and the elastic deformation part 33 that connects the fixed part 32 and the outflow tube 31 and is elastically deformable in the direction in which the outflow tube 31 approaches the discharge tube 23, so that the outflow tube 31 functions as a movable tube that moves upward when the contents 2 are discharged and descends after the discharge is completed. Therefore, after the contents 2 are discharged from the discharge tube 23, the outflow tube 31 descends, so that the contents 2 remaining inside the discharge tube 23 can be sucked back to the space 70, i.e., the outflow tube 31 side. Therefore, after the contents 2 are discharged, when the lid body 24 is closed and the blocking plug 26 is inserted into the discharge hole 23a of the discharge tube 23, it is possible to suppress the contents 2 from overflowing from the discharge tube 23.

[0052] In particular, when a double container is used as the container body 10, after the contents 2 are discharged, the body of the outer layer 11 returns to its original shape while the inner layer 12 remains deformed in volume, so the reduced pressure in the storage space 12a generated when the squeeze of the body is released is relatively small, and the contents 2 are likely to remain inside the discharge tube 23. However, according to the discharge container 1 of this embodiment, even in such a case, after the contents 2 are discharged from the discharge tube 23, the outflow tube 31 descends, sucking the contents 2 remaining inside the discharge tube 23 back into the space 70, i.e., the outflow tube 31 side, thereby preventing the contents 2 from overflowing from the discharge tube 23 when the lid 24 is closed and the blocking plug 26 is inserted into the discharge hole 23a of the discharge tube 23.

[0053] Furthermore, in the discharge container 1 according to this embodiment, when the contents 2 are discharged, the outflow tube 31 moves up and down due to the elastic deformation of the elastic deformation portion 33, thereby changing the volume of the space 70, and after the contents 2 are discharged, the contents 2 are sucked back from the discharge tube 23. Since the discharge container 1 does not have any sliding parts such as a piston and cylinder, there are no problems with sealing, and the load required to operate the elastic deformation portion 33 or the outflow tube 31 can be reduced.

[0054] The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit and scope of the present invention.

[0055] For example, in the above embodiment, a double-layered container is used as the container body 10, but the present invention is not limited to this, and a single-layered container may also be used.

[0056] In addition, in the above embodiment, the container body 10 used has a body portion that is squeezable and returns to its original shape when the squeeze is released, but this is not limited to this, and it is also possible to use a body portion that is squeezable but does not return to its original shape when the squeeze is released.

[0057] Furthermore, in the above embodiment, the discharge cap 20 is configured as a hinge cap in which the lid body 24 is connected to the cap body 21 by a hinge 25, but this is not limited to this, and the lid body 24, which is provided separately from the cap body 21, may be configured to be freely attached and detached to the cap body 21 by screw connection or undercut engagement, etc.

[0058] Furthermore, in the above embodiment, the fixing portion 32 is configured to have a first fixing portion 32a directly fixed to the cap body 21 and a second fixing portion 32b that is separate from the first fixing portion 32a and fixed to the first fixing portion 32a. However, this is not limited to this, and for example, when a container body 10 that is not a double container but has a single-layer configuration is used, the fixing portion 32 may be configured from a single member.

[0059] Furthermore, in the above embodiment, an outside air inlet 13 is provided in a portion corresponding to the mouth portion 10a of the outer layer 11, but an outside air inlet may be provided in other portions, such as the body or bottom of the outer layer 11, as long as outside air can be introduced between the outer layer 11 and the inner layer 12 when the squeezed outer layer 11 returns to its original shape.

[0060] Furthermore, in the above embodiment, the discharge cap 20 is configured such that when the body of the container body 10 is squeezed and the storage space 12a is pressurized with the outflow tube 31 closed by the valve body for the contents 42, first the elastic deformation portion 33 elastically deforms, displacing the outflow tube 31 toward the discharge tube 23, and then the check valve for the contents 40 opens the outflow tube 31. However, without being limited to this, the discharge cap 20 may be configured such that when the body of the container body 10 is squeezed and the storage space 12a is pressurized with the outflow tube 31 closed by the valve body for the contents 42, the elastic deformation portion 33 elastically deforms, displacing the outflow tube 31 toward the discharge tube 23, and at the same time the check valve for the contents 40 opens the outflow tube 31. [Explanation of symbols]

[0061] 1 Discharge container 2 Contents 10 Container body 10a Mouth 11 Outer body 12 Inner layer 12a Storage space 13 Outside air intake 14 Male thread 15 Annular protrusion 20 Discharge cap 21 Cap body 21a Top wall 21b Mounting tube part 22 Female thread 23 Discharge tube 23a Discharge hole 23b Fitting protrusion 24 Lid 25 Hinge 26 Blockage 27 Ventilation holes 30 Inner stopper 31 Outflow tube 31a Outflow hole 32 Fixed part 32a 1st fixed part 32b 2nd fixed part 33 Elastic deformation part 34 Upper Wall 35 Interlocking Walls 36 Fitting tube 37 Fixed tube 38 Through hole 40 Content check valve 41 Support 41a Inner part 41b Outer part 42 Contents valve body 43 Elastic leg 50 Outlet tube unit 51 Ventilation passage 52 Introductory path 60 Air check valve 70 space O axis

Claims

1. A discharge container having a synthetic resin container body for storing contents and a discharge cap attached to a mouth part of the container body, The discharge cap, A cap body having a discharge tube and attached to the mouth portion; a lid body that is provided with a plug that is inserted into the discharge cylinder and is attached to the cap body so as to be freely opened and closed; An outlet tube communicated with the discharge tube and an inner plug provided inside the cap body; A check valve for contents attached to the outflow tube for opening and closing the outflow tube, The inside plug is A fixing portion fixed to the cap body; a resilient deformation portion that connects the fixed portion and the outflow tube and is resilient in a direction in which the outflow tube approaches the discharge tube;

2. The fixing portion is A first fixing portion directly fixed to the cap body; a second fixing portion that is separate from the first fixing portion and fixed to the first fixing portion, The discharge container according to claim 1 , wherein the second fixing portion, the elastic deformation portion, and the outflow tube are integrally formed.

3. The container body is an outer layer body constituting an outer shell of the container body; an inner layer body that is freely shrinkable and deformable and is disposed inside the outer layer body; 3. The discharge container according to claim 2, which is a double container provided with an outside air inlet communicating between the outer layer body and the inner layer body.

4. The contents check valve is A support fixed to the outflow tube; A content valve body disposed at an upper end of the outflow tube; The discharge container according to any one of claims 1 to 3, further comprising a plurality of elastic legs that connect the support body and the content valve body and are elastically deformable in a direction away from the outflow tube.

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