Cap

Abstract

To provide a cap that allows the contents in a container to be easily poured out in small amounts from a spout.SOLUTION: A cap has an inside plug 22 provided inside the cap body 21, a spout 23 provided in the cap body 21, and a flow passage 25 that communicates between the inside of the mouth of the container and the spout 23 side. The inside plug 22 has a first valve body 43 that is movable in the opening and closing directions, and a housing member 44 that houses the first valve body 43. The first valve body 43 opens and closes a first flow passage 55. A second valve body 61 that covers the outflow port 50 is provided. A recess 52 and a protrusion 53 are formed at the other end of the housing member 44. The second valve body 61 has an annular contact portion 67 that can be brought into and out of contact with the protrusion 53. When the contact portion 67 is in close contact with the protrusion 53, a second communication hole 71 that communicates between the outflow port 50 side and a first communication hole 70 side is formed between the contact portion 67 and the recess 52. The force required to deform the second valve body 61 in the opening direction is greater than the force required to move the first valve body 43 in the opening direction.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a cap having a cap body to be attached to a container, an inside plug, and a lid. [Background technology]

[0002] Conventionally, as an example of this type of cap, there is a pouring cap that is attached to the opening of a pouring container having a double structure of an inner layer and an outer layer, as described in the following patent document.

[0003] The dispensing cap has a cap body that fits over the mouth of the dispensing container, a dispensing plug provided inside the cap body, a dispensing outlet provided in the cap body, and a lid that can freely open and close the dispensing outlet. The upper opening of the inner layer body and the spout are in communication with each other via a spout passage. A ball valve for opening and closing the spout passage is provided in the spout tap. A lift valve (plate-shaped valve) that opens and closes the outlet of the pouring passage that opens toward the pouring outlet is provided between the cap body and the pouring tap.

[0004] By tilting the dispensing container and squeezing (pressing), the ball valve moves in the opening direction and opens, and the pressure of the contents being pumped into the dispensing passage causes the plate-shaped valve to open, and the contents are poured out from the upper opening of the inner layer through the dispensing passage of the dispensing tap and to the outside through the dispensing outlet. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6084504 Summary of the Invention [Problem to be solved by the invention]

[0006] However, with the above-mentioned conventional type, even if one wanted to dispense a small amount of the contents from the spout, squeezing the dispensing container would open the ball valve and the plate-shaped valve, making it difficult to dispense only a small amount (for example, one drop) of the contents from the spout. An object of the present invention is to provide a cap that allows the contents of a container to be easily poured out in small amounts (for example, one drop) from a pouring outlet. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a cap having a cap body fitted onto the mouth of a deformable container, an inner plug provided inside the cap body, a spout provided on the cap body, a lid that can freely open and close the spout, and a flow path that communicates between the inside of the mouth and the spout side, The inside plug has a first valve body that is movable in an opening and closing direction, and a cylindrical housing member that houses the first valve body, an inlet opening to the inside of the mouth portion is formed at one end of the containing member; An outlet opening toward the outlet side is formed at the other end of the containing member, the flow passage has a first flow passage formed in the accommodating member and communicating with an inlet and an outlet; the first valve body closes the first flow passage by moving in a closing direction and opens the first flow passage by moving in an opening direction; an elastically deformable second valve body covering the outlet is provided between the other end of the containing member and the pouring outlet of the cap body; A recess and a protrusion are formed on the other end of the housing member, the second valve body has an annular contact portion that can freely come into contact with and separate from the protrusion, and is biased in the closing direction; the contact portion is in close contact with the convex portion to seal the gap between the convex portion and the second valve body when the second valve body is in the closed state, and is separated from the convex portion to form a gap between the convex portion and the second valve body when the second valve body is deformed from the closed state in the open direction; a first communication hole that communicates with the other end side of the containing member and the spout side and is positioned outside the contact portion in the radial direction is formed in the second valve body; When the contact portion is in close contact with the convex portion, a second communication hole communicating with the outlet side and the first communication hole side is formed between the contact portion and the concave portion, The force required to deform the second valve body in the opening direction is greater than the force required to move the first valve body in the opening direction.

[0008] According to this, when the contents of the container are to be poured from the spout, the lid is opened and the container is squeezed from the outside, which moves the first valve body in the opening direction and opens the first flow passage. At this time, if the pressing force when squeezing the container is smaller than the force required to deform the second valve in the opening direction, the second valve does not deform in the opening direction and remains in the closed state, and the contact part comes into close contact with the convex part, sealing the gap between the convex part and the second valve body.

[0009] As a result, the contents in the container flow from the inlet of the container through the first flow passage to the outlet, then from the outlet through the second communication hole to the first communication hole, and then through the first communication hole to be poured out from the pouring outlet. At this time, because the second communication hole is formed between the contact portion that is in close contact with the convex portion and the concave portion, the cross-sectional area of ​​the flow passage is narrowed at the second communication hole. This makes it possible to easily pour out only a small amount (for example, one drop) of the contents from the pouring outlet.

[0010] Furthermore, if the pressing force applied when squeezing the container is greater than or equal to the force required to deform the second valve body in the opening direction, the second valve body deforms in the opening direction, the contact portion separates from the convex portion, and a gap is formed between the convex portion and the second valve body.

[0011] As a result, the contents in the container flow from the inlet of the storage member through the first flow passage to the outlet, then from the outlet through the gap between the convex portion and the second valve body and the gap between the concave portion and the second valve body to the first communicating hole, and then out through the first communicating hole and poured out from the pouring outlet.

[0012] In this case, the area of ​​the gap between the convex portion and the second valve body and the area of ​​the gap between the concave portion and the second valve body are larger than the opening area of ​​the second communication hole, making it possible to pour a large amount of content from the pouring outlet.

[0013] According to the cap of the present invention, the first valve body is preferably a spherical valve body. According to the cap of the present invention, the recessed portions and the protruding portions are alternately formed in a plurality of positions in the circumferential direction of the other end portion of the containing member, a plurality of first communication holes are formed in the circumferential direction of the contact portion; a plurality of second communication holes are formed in the circumferential direction of the other end of the accommodating member; The total open area of ​​all the second communication holes is preferably smaller than the total open area of ​​all the first communication holes.

[0014] According to this, when the compressive force when the container is squeezed is smaller than the force required to deform the second valve in the opening direction, the contents in the container flow from the inlet of the containing member through the first flow passage to the outlet, from the outlet through the second communication hole to the first communication hole, and then through the first communication hole to be poured out from the outlet. At this time, the total open area of ​​all the second communication holes is smaller than the total open area of ​​all the first communication holes, so the cross-sectional area of ​​the flow passage is narrowed at the second communication hole.

[0015] According to the cap of the present invention, the container has a double structure of a deformable inner container in which a fluid content is stored and a deformable outer container that encases the inner container, An air intake port is formed in the cap body to draw outside air between the inner container and the outer container, It is preferable that an intake valve body for opening and closing the intake port is provided.

[0016] According to this, when the lid is opened and the double-structured container is squeezed (pressed) from the outside, the intake valve body closes the intake port, causing the internal pressure of the container to rise and the first valve body to move in the opening direction, opening the first flow passage. At this time, if the pressing force when squeezing the container is smaller than the force required to deform the second valve body in the opening direction, the second valve body does not deform in the opening direction and remains in the closed state, and the contact part comes into close contact with the convex part, sealing the gap between the convex part and the second valve body.

[0017] Furthermore, if the pressing force applied when squeezing the container is greater than or equal to the force required to deform the second valve body in the opening direction, the second valve body deforms in the opening direction, the contact portion separates from the convex portion, and a gap is formed between the convex portion and the second valve body.

[0018] Furthermore, by releasing the pressure on the container, the internal pressure of the container decreases below atmospheric pressure, and the intake valve body opens the intake port, allowing outside air to be introduced through the intake port into the space between the inner container and the outer container, causing the second valve body to return to the closed state, sealing the gap between the second valve body and the convex portion of the containing member, and the first valve body to move in the closing direction, closing the first flow passage.

[0019] According to the cap of the present invention, the intake valve body and the second valve body are preferably provided on a common member. [Effects of the Invention]

[0020] As described above, according to the present invention, the contents in the container can be easily poured out in small amounts (for example, one drop) from the pouring outlet. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a cross-sectional view of a cap according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the inner plug of the cap. [Figure 3] FIG. 3 is a view taken along the arrow XX in FIG. 2. [Figure 4] FIG. 3 is a view taken along the arrow YY in FIG. 2. [Figure 5] FIG. 4 is a partially enlarged cross-sectional view of the cap, showing the state when the first valve body and the second valve body are both in a closed state. [Figure 6] FIG. 6 is a partially enlarged cross-sectional view of FIG. 5. [Figure 7] FIG. 2 is a partially enlarged cross-sectional view of the cap, showing the state when the first valve body is in an open state and the second valve body is in a closed state. [Figure 8] FIG. 4 is an enlarged cross-sectional view of a second valve device of the cap. [Figure 9]9 is a view taken along the arrow XX in FIG. 8. [Figure 10] 9 is a view taken along the arrow YY in FIG. 8. [Figure 11] FIG. 2 is a partially enlarged cross-sectional view of the cap, showing the state when both the first valve body and the second valve body are in an open state. [Figure 12] FIG. 12 is a partially enlarged cross-sectional view of FIG. [Figure 13] FIG. 2 is an enlarged cross-sectional view of a portion of the cap showing the function of the intake valve body. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings. (First embodiment)

[0023] As shown in Figure 1, reference numeral 1 denotes a cap provided on a container 2. The container 2 has a double structure consisting of a flexible and deformable inner container 3 and an elastically deformable outer container 4 that encases the inner container 3. Both the inner container 3 and the outer container 4 are flexible, and the inner container 3 contains a liquid content 5 (an example of a fluid content), such as soy sauce. A space 6 is formed between the inner container 3 and the outer container 4. The inner container 3 has a cylindrical inner opening 8 at its upper end, and the outer container 4 has a cylindrical outer opening 9 at its upper end. A male thread 10 is formed on the outer periphery of the outer opening 9.

[0024] The cap 1 has a cap body 21 attached to the outer opening 9, an inner stopper 22 provided inside the cap body 21, a spout 23 provided on the cap body 21, a lid 24 that can freely open and close the spout 23, and a flow passage 25 that communicates with the inside of the inner opening 8 and the spout 23 side.

[0025] The direction of an axis 27 passing through the center of the cap 1 is defined as an up-down direction 28 , the direction perpendicular to the axis 27 is defined as a radial direction 29 , and the circumferential direction centered on the axis 27 is defined as a circumferential direction 30 .

[0026] The cap body 21 has a cylindrical outer body 32 that fits over the outer opening 9, and a circular top plate 33 that is provided at the upper end of the outer body 32 and covers the upper side of the inner opening 8. A female thread 34 that screws onto the male thread 10 of the outer opening 9 is formed on the inner periphery of the outer body 32.

[0027] A cylindrical pouring nozzle 36 and an air intake nozzle 37 protrude upward from the top plate portion 33. The pouring outlet 23 is formed inside the pouring nozzle 36. An air intake port 38 is formed inside the air intake nozzle 37, which draws outside air 83 between the inner container 3 and the outer container 4.

[0028] As shown in Figures 1 to 4, the inside plug 22 has a spherical first valve body 43 that is movable in the opening and closing directions 40 and 41, a cylindrical accommodating member 44 that accommodates the first valve body 43, an annular fitting portion 45 that is fitted into the inner opening portion 8, a support portion 46 that is sandwiched and supported between the tip of the inner opening portion 8 and the top plate portion 33, and a mounting groove 47 that is recessed downward.

[0029] A plurality of inflow ports 49 that open to the inside of the inner mouth portion 8 are formed at the lower end (an example of one end) of the storage member 44. For example, as shown in Figures 2 and 4, a pair of inflow ports 49 are opposed to each other in the radial direction 29. An outflow port 50 that opens to the pouring outlet 23 side is formed at the upper end (an example of the other end) of the storage member 44. A reduced diameter portion 48 having a diameter smaller than that of the first valve body 43 is formed on the inner periphery of the containing member 44. The reduced diameter portion 48 serves as a valve seat surface.

[0030] Furthermore, a plurality of recesses 52 and protrusions 53 are formed on the upper end of the accommodating member 44. As shown in FIG.

[0031] As shown in Fig. 5, flow passage 25 has a first flow passage 55 formed in accommodating member 44 and communicating with inlet 49 and outlet 50, and a second flow passage 56 communicating with outlet 50 and spout 23. As shown in Fig. 5, first valve body 43 moves in closing direction 41 to come into contact with reduced diameter portion 48 over the entire circumference and closes first flow passage 55, and as shown in Fig. 7, moves in opening direction 40 to move upward away from reduced diameter portion 48 and open first flow passage 55.

[0032] 2 and 3, the mounting groove 47 is formed around the entire periphery between the outer periphery of the upper end of the accommodating member 44 and the inner periphery of the support portion 46, and surrounds the outside of the upper end of the accommodating member 44. The first valve body 43 and the accommodating member 44 constitute a first valve device 58.

[0033] 1 and 8 to 10, a second valve device 59 is provided between the inside plug 22 and the top plate portion 33 of the cap body 21. The second valve device 59 is made of a flexible material such as rubber, and has a disk-shaped second valve body 61 that covers the upper side of the outlet 50 of the containing member 44, and an annular mounting member 62 that extends downward from the outer circumferential edge of the second valve body 61.

[0034] The second valve body 61 is disposed between the upper end of the accommodating member 44 and the top plate portion 33 of the cap body 21, and is elastically deformable in opening and closing directions 64, 65, and is biased in the closing direction 65. The second valve body 61 also has an annular contact portion 67 that can freely come into contact with and separate from the protrusion 53 at the upper end of the accommodating member 44.

[0035] The contact portion 67 is formed on the outer peripheral edge of the second valve body 61 and has a U-shaped cross section that curves downward. When the second valve body 61 is in the closed state as shown in Figures 5 to 7, the contact portion 67 comes into close contact with the convex portion 53 to seal the gap between the convex portion 53 and the second valve body 61. When the second valve body 61 is deformed from the closed state in the opening direction 64 as shown in Figures 11 and 12, the contact portion 67 moves away from the convex portion 53 in the opening direction 64 to form a gap 68 between the convex portion 53 and the second valve body 61.

[0036] As shown in Figures 1 and 2, the mounting member 62 is fitted into the mounting groove 47 of the inside plug 22, and in this state is sandwiched and fixed between the bottom surface of the mounting groove 47 and the top plate portion 33 of the cap body 21.

[0037] 1 and 5 to 10, a first communication hole 70 is formed in the outer peripheral end of the second valve body 61. The first communication hole 70 communicates with the upper end side of the accommodating member 44 and the spout 23 side and is located outside the contact portion 67 in the radial direction 29. A plurality of first communication holes 70 are formed in the circumferential direction 30 of the contact portion 67 and are located outside the upper end of the accommodating member 44. The first communication holes 70 are also located outside the protrusions 53 in the radial direction 29 of the accommodating member 44.

[0038] 5 and 6, when the contact portion 67 of the second valve body 61 comes into close contact with the convex portion 53 of the accommodating member 44, a second communication hole 71 that communicates with the outlet 50 side of the accommodating member 44 and the first communication hole 70 side of the second valve body 61 is formed between the contact portion 67 and the concave portion 52. In this case, a plurality of second communication holes 71 are formed in the circumferential direction 30 of the upper end portion of the accommodating member 44.

[0039] The total opening area of ​​all the second communication holes 71 is set to be smaller than the total opening area of ​​all the first communication holes 70. Also, as shown in Fig. 11, the force required to deform the second valve body 61 in the opening direction 64 is set to be greater than the force required to move the first valve body 43 in the opening direction 40.

[0040] As shown in FIG. 6, the width W of the protrusion 53 in the radial direction 29 of the containing member 44 is set to a dimension that can accommodate errors in the diameter and positional deviation of the contact portion 67 of the second valve body 61.

[0041] 1, 8 to 10, and 13, the second valve device 59 has an intake valve body 74 that opens and closes the intake port 38. The intake valve body 74 is an elastically deformable flat valve body that is attached to the mounting member 62 (an example of a common member) and is biased in the closing direction.

[0042] As shown in FIG. 1, the lid 24 is connected to the cap body 21 via a hinge 76 and is configured to be rotatable in the opening and closing directions 40 and 41. The lid 24 has a disk-shaped lid plate 77 and a peripheral wall 78 provided on the outer periphery of the lid plate 77. A cylindrical protrusion 79 protruding from the back surface of the lid plate 77 is provided on the inside of the lid 24. As shown by the imaginary lines in FIG. 1, when the lid 24 is closed, the protrusion 79 is inserted into the dispensing nozzle 36, and the outer peripheral surface of the protrusion 79 comes into tight contact with the inner peripheral surface of the dispensing nozzle 36 over the entire circumference. This creates a seal between the dispensing nozzle 36 and the lid 24. The operation of the above configuration will be described below.

[0043] When the liquid content 5 in the container 2 is poured out from the outlet 23, the lid 24 is opened as shown by the solid line in FIG. 1 and the container 2 is squeezed (pressed) from the outside, which causes the inner container 3 and the outer container 4 to deform and the pressure in the space 6 between the inner container 3 and the outer container 4 to exceed atmospheric pressure. As a result, the intake valve body 74 closes the intake port 38, causing the internal pressure of the inner container 3 to rise, and the first valve body 43 moves from the closed position S shown in FIG. 5 to the open direction 40 as shown in FIG. 7, thereby opening the first flow passage 55.

[0044] At this time, if the pressing force when squeezing the container 2 is smaller than the force required to deform the second valve body 61 in the opening direction 64, the second valve body 61 will not deform in the opening direction 64 and will be kept in the closed state, as shown in Figure 7, and the contact portion 67 will be in close contact with the convex portion 53, sealing the gap between the convex portion 53 and the second valve body 61.

[0045] As a result, the content liquid 5 in the inner container 3 flows into the interior of the containing member 44 through the inlet 49 of the containing member 44, passes through the first circulation passage 55 to reach the outlet 50, flows from the outlet 50 through the second communication hole 71 to the outside in the radial direction 29 of the contact portion 67, flows from the inside to the outside of the second valve body 61 through the first communication hole 70, flows from the outside of the second valve body 61 into the dispensing nozzle 36 and is dispensed to the outside through the dispensing outlet 23.

[0046] 6, the second communication holes 71 are formed between the contact portions 67 in close contact with the convex portions 53 and the concave portions 52, and the total opening area of ​​all the second communication holes 71 is smaller than the total opening area of ​​all the first communication holes 70, so the cross-sectional area of ​​the second flow passage 56 is narrowed at the second communication holes 71. This makes it possible to easily pour out only a small amount (for example, one drop) of the content liquid 5 from the pouring outlet 23.

[0047] Furthermore, since the first communication hole 70 is disposed outside the convex portion 53 in the radial direction 29 of the containing member 44, the content liquid 5 passes through the second communication hole 71, then flows around to the outside (behind) of the convex portion 53 and into the first communication hole 70. This reduces the momentum of the flow of the content liquid 5, and rectifies the flow of the content liquid 5.

[0048] Furthermore, if the pressing force when the container 2 is squeezed from the outside is greater than or equal to the force required to deform the second valve body 61 in the opening direction 64, the second valve body 61 deforms in the opening direction 64, the contact portion 67 moves away from the convex portion 53, and a gap 68 is formed between the convex portion 53 and the second valve body 61, as shown in Figures 11 and 12.

[0049] As a result, the content liquid 5 in the inner container 3 flows into the interior of the containing member 44 through the inlet 49 of the containing member 44, passes through the first flow passage 55 to reach the outlet 50, passes from the outlet 50 through the gap 68 between the convex portion 53 and the second valve body 61 and the gap 81 between the concave portion 52 and the second valve body 61, flows out to the outside of the contact portion 67 in the radial direction 29, passes through the first communicating hole 70 from the inside to the outside of the second valve body 61, flows from the outside of the second valve body 61 into the dispensing nozzle 36, and is dispensed to the outside through the dispensing outlet 23.

[0050] In this case, the total area obtained by adding up the area of ​​the gaps 68 between all of the convex portions 53 and the second valve body 61 and the area of ​​the gaps 81 between all of the concave portions 52 and the second valve body 61 is larger than the opening area of ​​all of the second communication holes 71 (see Figures 6 and 7), so it is possible to pour out a large amount of content liquid 5 from the pouring outlet 23.

[0051] Furthermore, when the squeeze (pressing operation) on the container 2 is released, the outer container 4 returns to its original shape before squeezing, and when the pressure in the space 6 between the inner container 3 and the outer container 4 becomes lower than atmospheric pressure, the intake valve body 74 deforms in the opening direction, opening the intake port 38, as shown by the imaginary line in Figure 13.

[0052] As a result, outside air 83 is introduced into the space 6 between the inner container 3 and the outer container 4 through the air intake 38, and as shown in Figures 1, 5 and 6, the second valve body 61 returns to the closed state, and the contact portion 67 of the second valve body 61 comes into close contact with the convex portion 53 of the accommodating member 44, thereby sealing the gap between the second valve body 61 and the convex portion 53, and the first valve body 43 moves in the closing direction 41 and returns to the closed position S, and the first flow passage 55 is closed by the first valve body 43.

[0053] As shown in Figures 8 to 10, the second valve device 59 has a second valve body 61 and an intake valve body 74, so the number of parts can be reduced compared to when the second valve body 61 and the intake valve body 74 are each provided as separate components.

[0054] In the above embodiment, as shown in FIG. 1, the cap 1 is attached to the container 2 having a double structure of the inner container 3 and the outer container 4, but it may also be attached to a container having a single structure.

[0055] In the above embodiment, as shown in FIG. 1, a hinged cap 1 is described in which the lid 24 is connected to the cap body 21 via a hinge 76, but a screw-type cap in which the lid 24 is detachably attached to the cap body 21 via a screw may also be used.

[0056] In the above embodiment, as shown in FIG. 1, the first valve body 43 is formed in a spherical shape, but is not limited to a spherical shape. For example, a valve body having a T-shaped cross section may be used as the first valve body 43. [Explanation of symbols]

[0057] 1 cap 2 containers 3 Inner container 4 Outer container 5 Contents liquid (contents) 8 Inner Mouth 9 Outer mouth 21 Cap body 22 Inner stopper 23 Spout 24 Lid 25 Distribution path 30 circumferential direction 38 Air intake 40 Opening direction 41 Close direction 43 First valve body 44 Storage member 49 Inlet 50 Outlet 52 recess 53 Convex part 55 1st flow path 61 Second valve body 62 Mounting parts (common parts) 64 Opening direction 65 Close direction 67 Contact area 68 Gap 70 1st communication hole 71 2nd communication hole 74 Intake valve body

Claims

1. A cap having a cap body fitted onto the mouth of a deformable container, an inner plug provided inside the cap body, a spout provided on the cap body, a lid that can freely open and close the spout, and a flow path that communicates with the inside of the mouth and the spout side, The inside plug has a first valve body that is movable in an opening and closing direction, and a cylindrical housing member that houses the first valve body, an inlet opening to the inside of the mouth portion is formed at one end of the containing member; An outlet opening toward the outlet side is formed at the other end of the containing member, The flow passage has a first flow passage formed in the accommodating member and communicating with an inlet and an outlet, the first valve body closes the first flow passage by moving in a closing direction and opens the first flow passage by moving in an opening direction; a second valve body that is elastically deformable and covers the outlet is provided between the other end of the containing member and the outlet of the cap body; A recess and a protrusion are formed on the other end of the housing member, the second valve body has an annular contact portion that can freely come into contact with and separate from the protrusion, and is biased in a closing direction; the contact portion is in close contact with the convex portion to seal the gap between the convex portion and the second valve body when the second valve body is in the closed state, and is separated from the convex portion to form a gap between the convex portion and the second valve body when the second valve body is deformed from the closed state in the open direction; a first communication hole that communicates with the other end side of the containing member and the spout side and is positioned outside the contact portion in the radial direction is formed in the second valve body; When the contact portion is in close contact with the convex portion, a second communication hole communicating with the outlet side and the first communication hole side is formed between the contact portion and the concave portion, A cap characterized in that a force required to deform the second valve body in an opening direction is greater than a force required to move the first valve body in the opening direction.

2. 2. The cap according to claim 1, wherein the first valve body is a spherical valve body.

3. a plurality of recesses and protrusions are formed alternately in the circumferential direction of the other end of the containing member; a plurality of first communication holes are formed in the circumferential direction of the contact portion; a plurality of second communication holes are formed in the circumferential direction of the other end of the accommodating member; 2. The cap according to claim 1, wherein the total open area of ​​all the second communication holes is smaller than the total open area of ​​all the first communication holes.

4. The container has a double structure of a deformable inner container in which a fluid content is stored and a deformable outer container that encases the inner container, An air intake port is formed in the cap body to draw outside air between the inner container and the outer container, 2. The cap according to claim 1, further comprising an intake valve body for opening and closing the intake port.

5. 5. The cap according to claim 4, wherein the intake valve body and the second valve body are provided on a common member.

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