cap

Abstract

To provide a cap capable of suppressing a pulsation of a content liquid even if a container is tilted too much when discharging from the container.SOLUTION: A cap includes a cap body A attached to a container E, and a lid body B that opens and closes the cap body A. The cap body A includes attachment portions 3, 4, 31 attached to a mouth portion 1 of the container E, and a partition wall portion 30 extending inward from the attachment portions 3, 4, 31. The partition wall portion 30 includes a discharge hole 33 formed on a discharging side, an air replacement hole 34 formed on an opposite side of the discharge hole 33, and a division plate 35 formed downward from between the discharge hole 33 and the air replacement hole 34.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cap consisting of a cap body that is attached to the mouth of a container and a lid that opens and closes the cap body, and in particular to a cap that can suppress pulsation of the content liquid when it is discharged from the container. [Background technology]

[0002] 2. Description of the Related Art Caps that are comprised of a cap body that is attached to a container and a lid that opens and closes the cap body are conventionally known. This type of cap allows the container to be tilted without squeezing, and the contents to be poured out through the opening and the dispensing tube (natural discharge), and the shape of the opening is determined taking into account the viscosity of the contents, etc. For this reason, when dispensing a small amount, it is necessary to reduce the angle of inclination of the container. However, in this case, it is difficult to adjust the degree of inclination of the container, and if the container is tilted too much, the liquid contents may come out in too much or in an unexpected direction. Therefore, in order to make it easier to adjust the amount of discharge, caps have been known that have a discharge hole opened on the pouring side and an air replacement hole opened on the opposite side of the discharge hole in the partition part of the cap body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-172160 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the cap described in Patent Document 1, the opening is separated into a pouring outlet (discharge hole) and an air inlet (air replacement hole), which allows for good air replacement during discharge and allows the contents to be discharged smoothly. However, depending on the degree to which the container is tilted, the contents may block the air replacement hole, hindering air replacement, causing the contents to pulsate (violent movement) during discharge and preventing smooth discharge.

[0005] The present invention has an object to solve the above problem and to provide a cap that can suppress pulsation of the content liquid even if the container is tilted too much when dispensing from the container. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides a cap comprising a cap body to be attached to a container and a lid body for opening and closing the cap body, wherein the cap body has an attachment part to be attached to the mouth of the container and a partition part extending inward from the attachment part, the mounting portion comprises a cylindrical mounting portion that is mounted on the outer periphery of the mouth of the container, a base wall that extends inward from above the cylindrical mounting portion and has an opening at the center, and an inner cylindrical portion that hangs down from the outer edge of the partition portion and is inserted into the inner periphery of the mouth of the container; The partition wall has a discharge hole formed on the discharge side, an air replacement hole formed on the opposite side to the discharge hole, and a partition plate formed downward from between the discharge hole and the air replacement hole, and the partition plate extends from the lower surface of the partition wall toward the air replacement hole. The partition plate is inclined, and a gap is formed between the inner circumference of the inner cylinder and both sides of the partition plate. The present invention employs a configuration characterized by the above.

[0008] As a specific embodiment of the cap, a configuration is adopted in which the opening area of ​​the air replacement hole is larger than the opening area of ​​the discharge hole, and the cap is a hinged cap consisting of a cap body and a lid body connected via a hinge. [Effects of the Invention]

[0009] By adopting the above-described configuration, the cap of the present invention makes it easier for the partition plate to block the liquid contents from flowing into the air replacement hole when the liquid contents are discharged from the container, and the air replacement hole is not completely blocked by the liquid contents, ensuring an air flow path, allowing for good air replacement between the inside and outside of the container and suppressing pulsation of the liquid contents. Furthermore, in the cap of the present invention, a gap is formed between both side surfaces of the partition plate and the inner periphery of the inner cylinder portion, thereby preventing sink marks that tend to occur during molding of the cap body. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side cross-sectional view showing a container to which a hinge cap according to a reference example of the present invention is attached in a closed state. [Figure 2] 1A and 1B are diagrams showing a hinge cap according to a reference example of the present invention in an open state, in which (a) is a top view and (b) is a side cross-sectional view. [Figure 3] 1A to 1C are diagrams showing an inner plug member of a hinge cap according to a first embodiment of the present invention, in which (a) is a top view, (b) is a side cross-sectional view, and (c) is a bottom view. [Figure 4] 1 is a side cross-sectional view showing a dispensing state of a container equipped with a hinge cap according to a reference example of the present invention. [Figure 5] 1A to 1C are diagrams showing an inner plug member of a hinge cap according to an embodiment of the present invention, in which (a) is a top view, (b) is a side cross-sectional view, and (c) is a bottom view. [Figure 6] 1 is a side cross-sectional view showing a dispensing state of a container equipped with a hinge cap according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Next, an embodiment in which the cap of the present invention is embodied as a hinge cap to which an inside plug member is attached will be described with reference to the drawings. In the following description, "first embodiment" and "this embodiment" corresponding to the first embodiment will be read as "reference example" and "this reference example", and "second embodiment" will be read as "embodiment". In the following description, the left side in FIG. 1 is referred to as the "front side (opposite the hinge)", the right side as the "back side (hinge side)", the upper side as the "top", and the lower side as the "bottom". [Example]

[0012] In FIG. 1, A is a cap body attached to a container E, B is a lid body attached to the cap body A via a hinge C so as to be able to open and close, and D is an inner plug member attached inside the cap body A. The container E has a mouth 1 at the top, and a fitting ridge 2 is provided on the outer periphery of the mouth 1.

[0013] As shown in Figures 1 and 2, the cap body A is composed of an attachment tubular portion 3 attached to the outer periphery of the mouth 1 of the container E, a base wall 4 extending inward from the top of the attachment tubular portion 3 and opening in the center, a dispensing tube 5 erected from the base wall 4, an attachment tube 6 extending downward from the lower end of the dispensing tube 5 toward the inner opening and into which the inner plug member D is fitted, and an outer tubular portion 7 connected to the outer periphery of the attachment tubular portion 3 with a certain gap between them.

[0014] The mounting tube portion 3 is at the same height as the lower end of the lid body B described later, and the upper part is the lid engagement portion 8 that engages with the lid body B when the lid is closed, with the inflection point 3a being the boundary where the shape of the outer surface begins to curve, and the part below the inflection point 3a is the mounting outer tube portion 9. The lid engaging portion 8 has a lid engaging projection 10 formed on the outer periphery of the upper portion thereof, which engages with the lid body B to keep the lid closed.

[0015] An inner peripheral engaging protrusion 11 is provided on the upper inner periphery of the mounting outer cylindrical portion 9, to which the inner plug member D described later is attached, and an engaging protrusion 12 is provided on the lower inner periphery of the mounting outer cylindrical portion 9, with which the lower and upper engaging protrusions 2 of the mouth portion 1 of the container E engage after stoppering. The fitting tube 6 has a fitting ridge 13 formed around the circumferential direction of the lower inner periphery, for fitting with the inner plug member D.

[0016] As shown in Figure 2, near either the left or right side of the hinge C attached to the upper outer end of the outer circumferential tube portion 7, a vertical separation portion 14 is provided by cutting into the outer circumferential surface of the outer circumferential tube portion 7 in a roughly V-shape when viewed from above. The outer cylindrical portion 7 has a separation end portion 15 formed as an upper and lower end surface on one end side 7a, which is on the hinge C side, separated by the separation portion 14, and the separation end portion 15 has a protruding piece 15a formed on the inner side so as to abut or come close to the outer peripheral surface of the mounting outer cylindrical portion 9. The outer circumferential cylinder portion 7 is provided with a terminal connecting portion 16 at the other end 7b opposite the hinge C across the separating portion 14, to which the mounting outer cylinder portion 9 is integrally connected.

[0017] Between the outer periphery of the mounting outer tube portion 9 (mounting tube portion 3) and the inner periphery of the outer tube portion 7, a breakable transverse rib 17 is formed, starting near the separation end portion 15 and extending over at least the range of the hinge C (hinge C region, approximately 70° in this embodiment), and multiple breakable weakened pieces 18 are formed at circumferential intervals from the end of the transverse rib 17, forming a circumferential tear line. The horizontal rib 17 must be formed at least in the hinge C region, but may be provided extending in the circumferential direction. In this embodiment, the horizontal ribs 17 are formed continuously horizontally, but a plurality of horizontal ribs may be formed at intervals, and may be formed obliquely, not limited to horizontally. In this embodiment, the weakening pieces 18 are formed at intervals in the circumferential direction, but they may be formed continuously in the circumferential direction. Also, the weakening pieces 18 are formed at the lower end between the outer periphery of the mounting outer tubular portion 9 and the inner periphery of the outer tubular portion 7, but the weakening pieces 18 may be located at a position other than the lower end.

[0018] It is preferable that the horizontal rib 17 be formed in the vertical middle portion between the outer periphery of the mounting outer tube portion 9 and the inner periphery of the outer peripheral tube portion 7, but the position of the horizontal rib 17 may be other than the middle portion. Furthermore, if a horizontal rib 17 is provided in the intermediate portion between the mounting outer tube portion 9 and the outer peripheral tube portion 7 in the hinge C area, it is prone to breaking when the hinge cap is separated, but strength can be maintained in the opening and closing direction of the hinge C. Furthermore, when molding the hinge cap, the flow of resin from the mounting outer tube portion 9 through the outer peripheral tube portion 7 and hinge C to the lid body B is improved, thereby improving the moldability of the hinge cap.

[0019] As shown in Figures 1 and 2, the lid body B is rotatably attached to the upper outer end of the outer cylindrical portion 7 of the cap body A via a hinge C, and the lid body B consists of a top wall 20 and a side peripheral wall 21 that hangs down from the peripheral edge of the top wall 20 and has a hinge C connected to the outer periphery of the lower end, and a sealing ring 22 that is inserted into the inner periphery of the dispensing tube 5 hangs down from the underside of the top wall 20.

[0020] An engaged portion 23 is formed on the lower inner periphery of the side peripheral wall 21, which engages with the lid engaging portion 8 of the mounting tube portion 3 of the cap body A, and an engaging recess 24 is provided on the side peripheral surface of the engaged portion 23, which fits into the lid engaging protrusion 10. A tab 25 is provided on the front side (opposite the hinge C) of the lower outer periphery of the side peripheral wall 21.

[0021] As shown in Figure 3, the inner plug member D comprises a central partition portion 30 that seals the opening formed in the base wall 4 of the cap body A, an inner tube portion 31 that hangs down from the outer edge of the partition portion 30 and is inserted into the inner periphery of the mouth portion 1 of the container E, and a flange portion 32 that extends radially outward from the upper outer periphery of the inner tube portion 31.

[0022] The partition wall portion 30 is provided with a discharge hole 33 that is V-shaped in plan view and opens on the front side, a semicircular air replacement hole 34 that opens on the back side, and a partition plate 35 that is formed downward between the discharge hole 33 and the air replacement hole 34. In addition, the opening areas of the discharge hole 33 and the air replacement hole 34 are set so that the air replacement hole 34 is larger than the discharge hole 33, and furthermore, the shapes of the discharge hole 33 and the air replacement hole 34 can be set appropriately and are not limited to the shapes described above. Although not shown in this embodiment, in order to seal the liquid contents filled in the container E, a sealing member with a knob or the like may be attached to the upper surface of the partition wall portion 30, thereby blocking the discharge hole 33 and the air replacement hole 34 opened in the partition wall portion 30.

[0023] In this embodiment, the partition plate 35 is formed vertically downward from the lower surface of the partition wall portion 30, and a gap a is formed between both side surfaces of the partition plate 35 and the inner periphery of the inner cylindrical portion 31. The gap a is formed between the partition plate 35 and the inner periphery of the inner cylindrical portion 31 in order to prevent sink marks that tend to occur when the inner plug member D is molded.

[0024] The flange portion 32 includes a base ring portion 36 formed in a ring shape radially outward from the upper outer periphery of the inner tube portion 31, and a pressing portion 37 formed in a hook-like shape in cross section from the outer edge of the base ring portion 36 with a space b downward. The pressing portion 37 is composed of a vertical wall 38 that rises upward from the outer edge of the base ring portion 36, an upper wall 39 that protrudes radially outward from the upper end of the vertical wall 38, and an inclined portion 40 that is formed so as to widen downward from the outer edge of the upper wall 39, and has an overall hook-shaped cross section.

[0025] The top surface of the upper wall 39 of the pressing portion 37 abuts against the lower surface of the base wall 4 of the cap body A, and the side peripheral surface of the inclined portion 40 abuts against the inner peripheral surface of the lid engaging portion 8 of the mounting tube portion 3. In contrast, the lower end of the inclined portion 40 may abut against the inner peripheral engaging protrusion 11, but it is preferable that there be a slight gap between it and the inner peripheral engaging protrusion 11, which makes it easier to attach the pressing portion 37 to the cap body A.

[0026] The partition wall portion 30 has a mating recess 41 formed on the lower outer periphery thereof, which is fitted with the mating protrusion 13 of the mating tube 6 . In this embodiment, the pressing portion 37 is formed in an annular shape over the entire circumference, but the pressing portion 37 may be formed by intermittently cutting out portions.

[0027] Next, the manner of use and the effects of this embodiment will be described. In the hinge cap of this embodiment, first, as shown in FIG. 2, the inner plug member D is positioned and attached so that the discharge hole 33 faces the front side of the cap body A.

[0028] At this time, the inner plug member D has an engaging recess 41 formed around the lower outer periphery of the partition portion 30 that engages with an engaging protrusion 13 formed around the lower inner periphery of the fitting tube 6, and since the pressing portion 37 of the flange portion 32 has a hook-shaped cross section with a space b below, the inclined portion 40 of the pressing portion 37 deforms toward the space b when it engages with the inner surface of the lid engaging portion 8 of the cap body A, and the side surface of the inclined portion 40 can climb over the inner engaging protrusion 11 of the mounting outer tube portion 9. Thereafter, the inner peripheral engaging protrusion 11 prevents the flange portion 32 of the inside plug member D from falling off.

[0029] Next, the closed hinge cap is attached to the mouth 1 of the container E filled with the liquid content. In the plugging step, the mouth 1 of the container E is placed in the annular groove formed between the inner cylindrical portion 31 of the inner plug member D and the outer cylindrical mounting portion 9 of the cap body A, and a pressing force is applied from above the lid body B. At this time, the fitting protrusion 12 of the outer cylindrical attachment part 9 rides up onto the fitting ridge 2 of the mouth part 1 and tries to push the outer cylindrical attachment part 3 outward from below, but the outer cylindrical attachment part 9 deforms and is pushed outward more than the lid engagement part 8 of the outer cylindrical attachment part 3, and when the fitting protrusion 12 rides over the fitting ridge 2, the deformed outer cylindrical attachment part 9 returns to its original state. At the same time, the lower part of the outer peripheral surface of the inner cylindrical part 31 of the inside plug member D rides up onto the upper end of the inner periphery of the mouth part 1, and the inner cylindrical part 31 is inserted into the inner periphery of the mouth part 1 while being deformed inward.

[0030] The lid engaging portion 8 of the mounting tube portion 3 maintains its shape by being pressed against its inner surface by the inclined portion 40 of the pressing portion 37 of the flange portion 32 of the inner plug member D as it attempts to return to its original shape, thereby preventing the lid engaging portion 8 from being pulled inward by the deformation of the mounting outer tube portion 9 due to the impact of plugging, and does not affect the fit with the entire engaged portion 23 of the side wall 21 of the lid body B. Furthermore, the outer cylindrical attachment portion 9 is formed thinner than the lid engaging portion 8 and is easily deformed, so that the pressing force required when capping can be reduced compared to conventional methods.

[0031] Finally, the top surface of the mouth portion 1 of the container E comes into contact with the bottom surface of the base ring portion 36 of the flange portion 32, completing the stoppering process. When stoppering is complete, the inner periphery of the fitting outer cylinder part 9 and the fitting protrusion 12 tightly contact the outer periphery of the mouth part 1 of the container E and the fitting protrusion 2 due to the restoring force of the fitting outer cylinder part 9 of the cap body A. In addition, the inner tube portion 31 of the center plug member D has an outward restoring force and the pressure of the mating convex rib 13 of the mating tube 6 of the cap body A abutting against the mating concave rib 41, which improves adhesion and prevents the lower part of the inner tube portion 31 from deforming inward.

[0032] When using the liquid contents in container E, a finger is placed on tab 25 to open hinge cap lid B, and if a sealing member is attached to the upper surface of partition wall 30 of inner plug member D, the sealing member is peeled off from partition wall 30 to open discharge hole 33 and air replacement hole 34 formed in partition wall 30. Next, by tilting the container E in the discharge direction (toward the front), the liquid content in the container E can be easily discharged from the discharge hole 33 through the dispensing tube 5 of the cap body A.

[0033] In the hinge cap of this embodiment, when there is sufficient liquid content in container E, when container E is tilted slightly, the liquid content in container E passes through the mouth portion 1 and is temporarily blocked by the partition portion 30 of the inner plug member D, and the blocked liquid content flows into the dispensing tube 5 via the discharge hole 33 opened on the front side of the partition portion 30 as a flow path. Furthermore, as shown in Figure 4, when container E is tilted further, the presence of partition plate 35 formed perpendicularly from the underside of partition 30 at a position between discharge hole 33 and air replacement hole 34 makes it easier for partition plate 35 to block the liquid contents from flowing into air replacement hole 34, even if the liquid level in mouth 1 rises, and the flow of air to air replacement hole 34, as indicated by the arrow, can be maintained in good condition.

[0034] In this way, the partition plate 35 makes it easier to block the liquid contents from flowing into the air replacement hole 34, and the air replacement hole 34 on the back side is no longer completely blocked by the liquid contents, ensuring an air flow path and allowing good air replacement between the inside and outside of the container E, thereby suppressing pulsation of the liquid contents and allowing the liquid contents in the container E to flow stably into the discharge hole 33. Furthermore, the opening area of ​​the air replacement hole 34 is set larger than the opening area of ​​the discharge hole 33, which makes it easier to take air into the container E and makes it easier to suppress pulsation of the content liquid during discharge. Furthermore, since a gap a is formed between both sides of the partition plate 35 and the inner circumference of the inner tube portion 31, some of the content liquid that is prevented from flowing into the air replacement hole 34 by the partition plate 35 flows out through the gap a, but the content liquid that flows out through the gap a passes through both sides of the air replacement hole 34 and flows into the dispensing tube 5, so there is no risk of the content liquid blocking the air replacement hole 34.

[0035] The hinge cap of the present invention can be separated from the opening 1 of the container E and discarded after the liquid content in the container E has been completely used up. In this case, when the lid body B of the hinge cap is opened and the lid body B is grasped with the fingers and pulled in the radial direction of the cap body A, the outer tubular portion 7 of the cap body A has a separation end portion 15 formed on one end side 7a on the hinge C side of the separation portion 14, and since the protruding piece 15a of the separation end portion 15 is not connected to the outer peripheral surface of the mounting outer tubular portion 9, the outer tubular portion 7 easily deforms outward from the separation end portion 15, causing the horizontal rib 17 to start breaking from the separation portion 14 side.

[0036] After the horizontal ribs 17 have been broken, if the lid body B is further pulled in the circumferential direction of the cap body A, the outer tubular portion 7 is pulled apart while breaking the weakened pieces 18 arranged intermittently on the attached outer tubular portion 9. It is then pulled up via the terminal connecting portion 16 on the other end side 7b, opposite the hinge C of the separating portion 14, which pulls and deforms the attached outer tubular portion 9 of the attached tubular portion 3, disengaging it from the container E. When the attached tubular portion 3 is pulled upward, the inclined portion 40 of the pressing portion 37, which has a hook-shaped cross section, of the inner plug member D opens outward as it attempts to return to its original shape, following the movement of the attached tubular portion 3. As the fitted state is maintained, the inner plug member D is also pulled up, and it can be separated from the mouth 1 of the container E together with the cap body A.

[0037] In this embodiment, the cap is described as a hinge cap consisting of a cap body A, a lid body B attached to the cap body A via a hinge C, and an inner plug member D attached to the inside of the cap body A, but the cap body A and the inner plug member D may also be integrated into a hinge cap. In this case, the mounting part attached to the mouth of the container in the present invention refers to the mounting tubular part 3 (mounting outer tubular part 9) attached to the outer periphery of the mouth 1 of the container E in this embodiment, the base wall 4 extending inward from the top of the mounting tubular part 3 and having an opening in the center, and the inner tubular part 31 inserted into the inner periphery of the mouth 1 of the container E; similarly, the partition part extending inward from the mounting part refers to the central partition part 30 that seals the opening formed in the base wall 4. Furthermore, in this embodiment, a hinge cap has been described as a specific example of the cap, but a screw cap having a cap body A and a lid body B may also be used. [Example]

[0038] Next, a second embodiment in which the shape of the inner plug member D of the first embodiment is modified will be described. In the following, the same components as those in the first embodiment are given the same reference numerals, and the differences will be mainly explained.

[0039] In FIG. 6, A is a cap body attached to a container E, B is a lid body attached to the cap body A via a hinge C so as to be able to open and close, and Da is an inner plug member attached inside the cap body A.

[0040] As shown in Figure 5, the inner plug member Da comprises a central partition portion 30 that seals the opening formed in the base wall 4 of the cap body A, an inner tube portion 31 that hangs down from the outer edge of the partition portion 30 and is inserted into the inner periphery of the mouth portion 1 of the container E, and a flange portion 32 that extends radially outward from the upper outer periphery of the inner tube portion 31.

[0041] The partition wall portion 30 is provided with a discharge hole 33 that is V-shaped in plan view and opens on the front side, a semicircular air replacement hole 34 that opens on the back side, and a partition plate 45 that is formed downward between the discharge hole 33 and the air replacement hole 34. In this embodiment, the partition plate 45 is formed at an angle from the lower surface of the partition wall portion 30 toward the air replacement hole 34, and a gap a is formed between both side surfaces of the partition plate 45 and the inner circumference of the inner cylindrical portion 31.

[0042] Next, the manner of use and the effects of this embodiment will be described. In the hinge cap of this embodiment, the inside plug member Da is attached to the cap body A in the same manner as in the first embodiment. Next, the hinge cap with the inner plug member Da attached to the cap body A is closed, and then the hinge cap is attached by plugging the mouth portion 1 of the container E filled with the liquid content.

[0043] In the hinge cap of this embodiment, when there is sufficient liquid content in container E, when container E is tilted slightly, the liquid content in container E passes through the mouth portion 1 and is temporarily blocked by the partition portion 30 of the inner plug member Da, and the blocked liquid content flows into the dispensing tube 5 via the discharge hole 33 opened on the front side of the partition portion 30 as a flow path. Furthermore, as shown in Figure 6, when container E is tilted further, there is a partition plate 45 formed between discharge hole 33 and air replacement hole 34, slanted from the underside of partition 30 toward air replacement hole 34. This makes it easier for partition plate 45 to block the liquid contents from flowing into air replacement hole 34, even if the liquid level in mouth 1 rises more than in the first embodiment, and maintains good air circulation to air replacement hole 34, as indicated by the arrow. The other configurations are the same as those of the first embodiment, and the effects are also the same. [Industrial Applicability]

[0044] The cap of the present invention is provided with a discharge hole formed on the discharge side, an air replacement hole formed on the side opposite the discharge hole, and a partition plate formed facing downward from between the discharge hole and the air replacement hole in the partition portion of the cap body that is attached to the container.This makes it easier for the partition plate to block the contents that attempt to flow into the air replacement hole when the container is discharged, and the air replacement hole is not completely blocked by the contents, ensuring an air flow path and allowing for good air replacement inside and outside the container, thereby suppressing pulsation of the contents, making the cap easy to use and suitable for use as a cap for food containers, etc. [Explanation of symbols]

[0045] A Cap body B Lid body C hinge D, Da inner plug member E container a gap b space 1 Mouth 2 Mating ridges 3 Mounting tube 3a Inflection point 4 Base wall 5 Pour tube 6 Fitting tube 7 Outer cylindrical part 7a One end side 7b Other end side 8 Lid engagement part 9 Mounting outer cylinder 10 Lid engaging protrusion 11 Inner circumferential engaging protrusion 12. Fitting protrusion 13. Interlocking ridges 14 Separation part 15 Separation end 15a protruding piece 16 End connection 17 Horizontal ribs 18 Weakening piece 20 Top Wall 21 Side wall 22 Sealing ring 23 Engaged part 24 Engagement recess 25 knob 30 Bulkhead 31 Inner cylinder 32 Flange 33 Discharge hole 34 Air displacement hole 35, 45 Divider 36 Base ring part 37 Pressing section 38 Vertical Wall 39 Upper Wall 40 Slope 41 Fitting groove

Claims

1. A cap comprising a cap body to be attached to a container and a lid body to open and close the cap body, The cap body includes an attachment portion that is attached to the mouth of the container, and a partition portion that extends inward from the attachment portion. the mounting portion comprises a cylindrical mounting portion that is mounted on the outer periphery of the mouth of the container, a base wall that extends inward from above the cylindrical mounting portion and has an opening at the center, and an inner cylindrical portion that hangs down from the outer edge of the partition portion and is inserted into the inner periphery of the mouth of the container; the partition wall portion includes a discharge hole formed on the discharge side, an air replacement hole formed on the opposite side to the discharge hole, and a partition plate formed downward from between the discharge hole and the air replacement hole, The partition plate is inclined from the underside of the partition wall toward the air replacement hole, A cap characterized in that a gap is formed between both side surfaces of the partition plate and the inner periphery of the inner cylindrical portion.

2. A cap as described in claim 1, characterized in that the opening area of ​​the air replacement hole is larger than the opening area of ​​the discharge hole.

3. A cap as described in claim 1 or 2, characterized in that the cap is a hinge cap consisting of a cap body and a lid body connected via a hinge.

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