JP6366466B2 - Pouring cap - Google Patents

Description

  The present invention relates to a dispensing cap that is attached to a mouth portion of a container and that dispenses the content liquid contained in the container from a dispensing cylinder.

  A dispensing cap is attached to the mouth of containers that contain cosmetic liquids such as lotions, shampoos and rinses, liquid soaps, and food seasonings to make it easy to dispense appropriate amounts of liquids. It is common to be done.

  For example, Patent Literature 1 discloses a dispensing cap that is attached to the mouth of a delamination container in which an inner layer body that contains a content liquid is detachably laminated inside an outer layer body. More specifically, a cap body including a top wall portion on which an extraction tube serving as an outlet for the content liquid is provided on the upper surface, and a mounting tube portion that is attached to the outer periphery of the mouth portion by screwing or the like, and an extraction tube A holder that includes a cylindrical portion that is continuous with the lower end of the cylindrical portion and a diameter-reduced cylindrical portion that is continuous with the lower end of the cylindrical portion and that gradually decreases toward the bottom, and a holder that is assembled to the inside of the cap body; A configuration is described that includes a ball valve that is movably disposed between the provided projection and the reduced diameter cylindrical portion and opens and closes an opening provided at the lower end of the reduced diameter cylindrical portion.

  In the delamination container equipped with such a pouring cap, the content liquid can be poured out from the pouring cylinder by squeezing (pressing) the body portion of the outer layer body. After releasing the squeeze, the inner layer body is reduced in volume by introducing outside air between the outer layer body and the inner layer body through the outside air introduction hole provided in the outer layer body while closing the opening of the holding cylinder by the ball valve. The torso can be restored as it is. Thereby, it replaces with the poured out content liquid and prevents the outside air from being sucked into the inner layer body, thereby suppressing the contact of the content liquid with the outside air and maintaining its quality.

JP 2013-180775 A

  However, in the above conventional pouring cap, when the pour cap is removed from the mold after molding, the projection provided on the inner surface of the cylindrical portion becomes an undercut, so a strong force acts on the projection from the mold. It may be deformed and a predetermined shape may not be obtained. In this case, when the inner solution is discharged, the ball valve sticks to the deformed protrusion and does not return to the closed position after the discharge, so that there is a problem that air easily flows into the inner layer body.

  An object of the present invention is to solve such a problem, and an object of the present invention is to provide a dispensing cap that can reliably operate a valve body.

  The pouring cap of the present invention is a pouring cap that has a lid that covers the pouring cylinder, which is attached to the mouth of the container and dispenses the content liquid contained in the container from the pouring cylinder. A cap body including a top wall portion provided on the top surface of the pouring tube, a mounting tube portion provided continuously with the outer periphery of the top wall portion and surrounding the outer periphery of the mouth portion, and a cylindrical portion continuous with the pouring tube. A holding cylinder having a diameter-reducing cylinder part that is continuous with the lower end of the cylinder part and gradually reduces the diameter downward, and a claw part provided on an inner surface of the cylinder part and the shrinkage inside the holding cylinder. And a valve body that opens and closes an opening provided at a lower end of the reduced diameter cylindrical portion, and the claw portion is inclined obliquely upward from the inner surface of the cylindrical portion. A step portion that protrudes and forms a retraction space between the claw portion and the inner surface of the cylindrical portion, and a central axis of the cylindrical portion; Angle α formed between the inner peripheral surface of the tight part may a central axis of the cylindrical portion and the or less claw portion angle β of the outer peripheral side surface forms a.

  In the pouring cap of the present invention, in the above configuration, the claw portion is preferably provided at one or more locations in the circumferential direction of the inner surface of the cylindrical portion.

  The pouring cap of the present invention preferably has an arc surface at the tip corner and the root corner of the claw portion in the above configuration.

  In the pouring cap of the present invention, in the above configuration, both the angle α and the angle β are preferably in the range of 20 to 50 degrees.

  In the pouring cap of the present invention, in the above configuration, when the pouring cylinder is covered with the lid body, the valve body does not come into contact with the claw portion due to the protrusion provided on the lower surface of the lid body. Thus, it is preferable that the movement range is further restricted.

  In the pouring cap of the present invention, in the above configuration, a plurality of ribs extending along the axial direction of the holding cylinder are provided on the inner peripheral surface of the holding cylinder at intervals in the circumferential direction. Are preferably provided integrally with each other.

  In the pouring cap of the present invention, in the above configuration, it is preferable that the valve body is formed in a spherical shape, and a moving stroke amount of the valve body inside the holding cylinder is smaller than a diameter of the valve body.

  According to the present invention, the claw portion provided on the inner surface of the cylindrical portion protrudes obliquely upward, and the step portion that forms the retraction space is provided between the claw portion and the inner surface of the cylindrical portion. When the output cap is removed from the mold after molding, the claw portion can be temporarily retracted to the retreat space. With this configuration, a predetermined shape can always be obtained without abnormally deforming the claw portion, so that the content liquid can be reliably poured out from the dispensing cylinder by opening the valve body when the content liquid is poured out. After dispensing, the opening can be reliably closed by the valve body.

  In addition, since the angle α formed by the central axis of the cylindrical portion and the inner peripheral side surface of the claw portion is equal to or smaller than the angle β formed by the central axis of the cylindrical portion and the outer peripheral side surface of the claw portion, the tip of the claw portion Can be easily removed from the mold.

  In addition, since the claw portion is configured to be provided at one or more locations in the circumferential direction of the inner surface of the cylindrical portion, the liquid content can be poured from the dispensing tube by reliably regulating the upward movement range of the valve body with a minimum configuration. Can be issued.

  In addition, since the tip corner portion and the root corner portion of the claw portion are formed by arcuate surfaces, the dispensing cap can be more smoothly removed from the mold, so that the predetermined claw portion can be more reliably formed. it can. Thereby, the opening and closing operation by the valve body can be performed reliably.

  Further, by setting both the angle α formed between the central axis of the cylindrical portion and the inner peripheral side surface of the claw portion and the angle β formed between the central axis of the cylindrical portion and the outer peripheral side surface of the claw portion within a range of 20 to 50 degrees. The claw portion can be reliably retracted to the retracting space. Thereby, a nail | claw part can be formed more correctly and the opening / closing operation | movement of the opening by a valve body can be performed reliably.

  Further, when the dispensing cylinder is covered by the lid, the movement range is further restricted by the protrusion provided on the lower surface of the lid so that the valve body does not contact the claw portion. With this configuration, since the valve body does not come into contact with the claw portion when not in use, the valve body can be prevented from sticking to the claw portion, and the opening / closing operation of the valve body can be reliably performed.

  In addition, a plurality of ribs extending along the axial direction are provided on the inner peripheral surface of the holding cylinder at intervals in the circumferential direction, and the claw portion is provided integrally with the rib. Thereby, while ensuring the flow path of an internal solution between each rib, a valve body can be freely movable along a rib between a nail | claw part and a reduced diameter cylinder part.

  In addition, the valve body is formed in a spherical shape, and the stroke of the valve body inside the holding cylinder is configured to be smaller than the diameter of the valve body, so that the valve body moves reliably in the holding cylinder. Thus, the opening / closing operation of the opening can be performed more reliably.

It is sectional drawing which shows the state which mounted | wore the mouth part of the container with the extraction | pouring cap which concerns on 1st Embodiment of this invention. It is sectional drawing which follows the AA line in FIG. It is an expanded sectional view of the holding cylinder of the extraction cap concerning a 1st embodiment of the present invention. It is an expanded sectional view of the holding | maintenance cylinder of the extraction | pouring cap which concerns on 2nd Embodiment of this invention.

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

  The pouring cap 1 according to the first embodiment of the present invention shown in FIG. 1 is provided in the mouth portion 11 of a container 10 that contains cosmetics such as lotion, shampoos and rinses, liquid soap or food seasonings. The content liquid that is mounted and accommodated in the container 10 is poured out to the outside.

  In the present embodiment, the container 10 is formed as a delamination container having an outer layer body 12 and an inner layer body 13 that is laminated inside the outer layer body 12 so as to be peelable from the outer layer body 12. In this case, an outside air introduction hole (not shown) that communicates between the outer layer body 12 and the inner layer body 13 is provided at the bottom of the container 10, and when the body (not shown) of the container 10 is squeezed (pressed), the content liquid Is discharged from the discharge cap 1 to the outside, and after the squeezing of the body portion is released, the outside air is introduced between the outer layer body 12 and the inner layer body 13 through the outside air introduction hole, and the inner layer body 13 is reduced in volume. The torso is restored. As a result, it is possible to prevent the outside air from being sucked into the inner layer body 13 by being replaced with the dispensed content liquid, to suppress the contact between the content liquid and the outside air, and to maintain the quality.

  When the outside air introduction hole is provided at the bottom of the container 10, the inner layer bodies 13 are bonded to each other on the rib (pinch-off portion) on the parting line formed when the container 10 is molded, and the outer layer bodies 12 are not bonded to each other. When the parting line is pushed from the outside, the outer layer body 12 is easily broken to form a slit. Thereby, outside air can be suck | inhaled between the outer layer body 12 and the inner layer body 13 from a slit (for example, refer patent 3124620 FIG. 6). Further, the outside air introduction hole can be provided, for example, in the mouth portion 11 of the container 10 by using a check valve together.

  The dispensing cap 1 includes a cap body 20, a holding cylinder 30, and a valve body 40.

  The cap body 20 is formed in a cylindrical shape having a top wall portion 21 formed in a substantially disc shape and a cylindrical mounting tube portion 22 provided integrally with the outer periphery of the top wall portion 21. The mounting cylinder portion 22 surrounds the outer periphery of the mouth portion 11, and the top wall portion 21 is attached to the mouth portion 11 so as to abut the opening end of the mouth portion 11. In addition, as shown in the drawing, a seal cylinder 23 that is formed to have a smaller diameter than the mounting cylinder part 22 and is in liquid-tight contact with the inner peripheral surface of the mouth part 11 can be integrally provided on the lower surface of the top wall part 21. .

  On the inner peripheral surface of the mounting cylinder portion 22, an engaged protrusion 22 a is provided on the lower end side. The cap main body 20 is mounted in a state of being prevented from being detached from the mouth portion 11 by the undercut engagement of the engaged projection 22a with the engagement projection 11a provided on the outer peripheral surface of the mouth portion 11. That is, the pouring cap 1 is configured such that the cap body 20 is attached to the mouth portion 11 by a stopper.

  On the top surface of the top wall portion 21, a pouring cylinder 24 is integrally provided as a pouring outlet for pouring the content liquid to the outside. The extraction cylinder 24 is formed in a shape that curves outward while gradually increasing in diameter upward from a connection portion with the top wall portion 21.

  The cap body 20 may be configured to include the lid body 25 integrally. The lid body 25 is formed in a cylindrical shape having a substantially same diameter as the cap body 20, and is integrally connected to the cap body 20 via a hinge 26 on the outer peripheral surface thereof. The lid 25 is held in a closed state by an undercut engagement of a locking groove 25 a provided on the inner peripheral surface of the opening with a locking projection 21 a provided on the outer peripheral edge of the top wall portion 21. When the lid body 25 is closed, the dispensing cylinder 24 is covered with the lid body 25, and a plug body 27 provided integrally with the inner surface of the lid body 25 is fitted into the dispensing cylinder 24 so that the dispensing cylinder 24 is It is blocked by the plug body 27.

  The lid body 25 is not limited to a structure that is integrally connected to the cap body 20 via the hinge 26, and may be configured to be attached to the cap body 20 by screwing, for example.

  The holding cylinder 30 has a cylindrical portion 31 and a reduced diameter cylindrical portion 32, and is formed in a cylindrical shape as a whole, and the inside thereof serves as a flow path for the content liquid continuous to the dispensing cylinder 24. In the present embodiment, the holding cylinder 30 is formed integrally with the cap body 20, but is not limited to this aspect, and the holding cylinder 30 may be configured as a separate part from the cap body 20.

  In the present embodiment, the cylindrical portion 31 is integrally provided at the lower end of the dispensing tube 24, and the reduced diameter cylindrical portion 32 is integrally provided at the lower end (the barrel portion side of the container 10) of the cylindrical portion 31. ing. The cylindrical portion 31 is formed in a cylindrical shape having a substantially constant inner diameter, while the reduced diameter cylindrical portion 32 is formed in a tapered shape in which the inner diameter is gradually reduced downward. In the illustrated case, a cylindrical opening tube portion 33 is integrally provided at the lower end of the reduced diameter tube portion 32, and the inside of the opening tube portion 33 serves as an opening 34 of the holding tube 30, that is, an inflow port for content liquid. It is composed.

  As shown in FIG. 2, three ribs 35 are integrally provided on the inner peripheral surface of the holding cylinder 30. The ribs 35 extend along the axial direction of the holding cylinder 30 and are arranged at equal intervals in the circumferential direction. Of the surfaces constituting the ribs 35, the surface facing the inside of the holding cylinder 30 is positioned on the radially outer side than the opening 34.

As shown in FIG. 3, a claw portion 36 that protrudes obliquely upward from the inner peripheral surface of the cylindrical portion 31 is provided integrally with the rib 35 at the upper end portion of each rib 35. Accordingly, the three claw portions 36 are arranged at equal intervals in the circumferential direction like the ribs 35 (see FIG. 2). In addition, although the nail | claw part 36 was provided in three places in this embodiment, it should just be formed in at least one place. An angle α (see FIG. 3) formed by the central axis of the cylindrical portion 31 and the inner peripheral side surface 36a of the claw portion 36 is set to 35 degrees, but a range of 20 to 50 degrees is preferable. Moreover, although the angle β formed by the central axis of the cylindrical portion 31 and the outer peripheral side surface 36b of the claw portion 36 is set to 40 degrees, the angle β is not less than the angle α and can be in the range of 20 to 50 degrees. Furthermore, the vertical length L of the claw portion 36 can be in the range of 0.08 to 1.75 millimeters, and can be preferably about 0.5 millimeters, for example. The diameter d _{v of the} valve body 40 can be preferably about 4 millimeters, for example.

As shown in FIG. 3, the cylindrical portion 31 is formed so that the inner diameter D _IN1 above the claw portion 36 is larger than the inner diameter D _IN2 below the claw portion 36. Thereby, a stepped portion 38 is formed between the claw portion 36 and the inner surface of the cylindrical portion 31, and a retreat space 37 for retreating the claw portion 36 described later is formed. The length of the stepped portion 38 is desirably 0.1 millimeter or more, and can be preferably about 0.15 millimeter, for example. Each of the claw portions 36 protrudes radially inward from the rib 35, and defines a movement path of the valve body 40 along the axial direction between the claw portions 36 and the reduced diameter cylindrical portion 32. The tip corner portion 36c and the root corner portion 36d of the claw portion 36 are formed by arcuate surfaces.

The valve body 40 is formed into a spherical shape (ball) from steel, resin, or the like, and is disposed inside the holding cylinder 30. The valve body 40 is supported by the ribs 35 and is disposed with a predetermined interval with respect to the inner peripheral surface of the cylindrical portion 31. As a result, a flow path for the content liquid is secured in the space between the inner peripheral surface of the cylindrical portion 31 and the outer peripheral surface of the valve body 40, that is, the space between the ribs 35. Further, the diameter d _{v of the} valve body 40 is larger than the inner diameter of the opening tube portion 33 and the distance between the tips of the claw portions 36. Thereby, the valve body 40 is movable in the axial direction along the rib 35 between the claw portion 36 and the reduced diameter cylindrical portion 32.

  As shown in FIGS. 1 and 3, the plug protrusion 28 surrounded by the plug 27 provided on the cover 25 has a valve located below the claw 36 when the cover 25 is closed. It is provided with a length that further restricts the movement range of the upper side of the body 40.

  When the container 10 is tilted so that the dispensing cylinder 24 faces downward in order to pour out the content liquid, the valve body 40 moves by its own weight in a direction away from the reduced-diameter cylinder section 32, and the nail in the cylinder section 31. Arranged near the portion 36. A flow path for the content liquid is secured between the inner peripheral surface of the cylindrical portion 31 and the outer peripheral surface of the valve body 40. As a result, the flow path from the opening 34 to the dispensing cylinder 24 is opened, and the content liquid accommodated in the container 10 flows into the holding cylinder 30 from the opening 34, and the inner peripheral surface of the cylindrical portion 31 and the outer periphery of the valve body 40. It is poured out from the pouring cylinder 24 through the flow path between the surface and the surface. On the other hand, after the content liquid is poured out, when the container 10 is returned to the upright posture so that the dispensing cylinder 24 faces upward, the valve body 40 moves downward in the holding cylinder 30 to reduce the diameter of the cylinder. It abuts on the part 32. As a result, the opening 34 is closed by the valve body 40, and introduction of outside air from the dispensing cylinder 24 into the container 10 is prevented. Further, when the valve body 40 returns to the reduced diameter cylindrical portion 32, the content liquid remaining in the dispensing cylinder 24 and the cylindrical portion 31 is sucked back (the content liquid is drawn by the amount of movement of the valve body 40). The dripping can be prevented.

  In addition, when the content liquid is poured out, the body part of the container 10 can be squeezed to pour out the content liquid from the pouring cylinder 24. In this case, the valve body 40 moves in a direction away from the reduced diameter cylinder portion 32 due to the pressure increase in the container 10, the flow path from the opening 34 to the extraction cylinder 24 is opened, and the content liquid is extracted from the extraction cylinder 24. From the outside. When the squeeze is released, the valve body 40 comes into contact with the reduced diameter cylindrical portion 32 due to the pressure drop in the container 10, and the introduction of the outside air from the dispensing cylinder 24 into the container 10 is similarly prevented.

  As described above, in this embodiment, the claw portion 36 provided on the inner surface of the cylindrical portion 31 protrudes obliquely upward, and the step portion 38 is provided between the claw portion 36 and the inner surface of the cylindrical portion 31 so as to retract. A space 37 was formed. Accordingly, the claw portion 36 can be temporarily retracted in the retreat space 37 when the dispensing cap 1 is removed from the mold after molding. With this configuration, the claw 36 having a predetermined shape can always be formed without abnormally deforming the claw 36. Thereby, the valve body 40 can be opened when the content liquid is poured out, and the content liquid can be surely poured out from the dispensing cylinder 24, and the opening 34 can be reliably closed by the valve body 40 after the dispensing. .

  In the present embodiment, the angle α formed by the central axis of the cylindrical portion 31 and the inner peripheral side surface 36a of the claw portion 36 is equal to or smaller than the angle β formed by the central axis of the cylindrical portion 31 and the outer peripheral side surface 36b of the claw portion 36. It comprised so that it might become. Thereby, the front-end | tip of the nail | claw part 36 does not become thick, and it becomes easy to pull out from a metal mold | die.

  Further, in the present embodiment, since the claw portion 36 is configured to be provided at one or more circumferential positions on the inner surface of the cylindrical portion 31, the upper side movement range of the valve body 40 is reliably regulated with a minimum configuration. Thus, the content liquid can be dispensed from the dispensing cylinder 24.

  Moreover, in this embodiment, since the front-end | tip corner | angular part 36c and the root corner part 36d of the nail | claw part 36 are formed with the circular arc surface, the extraction | pouring cap 1 can be more smoothly extracted from a metal mold | die. And the predetermined nail | claw part 36 can be formed more correctly. Thereby, the opening / closing operation | movement of the opening 34 by the valve body 40 can be performed reliably.

  Further, the angle α formed by the central axis of the cylindrical portion 31 and the inner peripheral side surface 36a of the claw portion 36 and the angle β formed by the central axis of the cylindrical portion 31 and the outer peripheral side surface 36b of the claw portion 36 are both 20 to 50 degrees. It was configured to be in the range. Thereby, the abnormal deformation | transformation of the nail | claw part 36 at the time of extracting the extraction | pouring cap 1 from a metal mold | die can be prevented more reliably, and the predetermined nail | claw part 36 can be formed more correctly. Therefore, the opening / closing operation of the opening 34 by the valve body 40 can be performed reliably.

  Further, when the dispensing cylinder 24 is covered with the lid 25, the movement range is further increased so that the valve body 40 does not come into contact with the claw portion 36 by the plug projection 28 provided on the lower surface of the lid 25. I tried to regulate it. With this configuration, since the valve body 40 does not contact the claw portion 36 when not in use, the valve body 40 is prevented from sticking to the claw portion 36 and the opening / closing operation of the opening 34 by the valve body 40 is ensured. It can be carried out.

  A plurality of ribs 35 extending along the axial direction are provided on the inner peripheral surface of the holding cylinder 30 at intervals in the circumferential direction, and the claw portion 36 is provided integrally with the rib 35. Thereby, while the flow path of an internal solution is ensured between each rib 35, the valve body 40 can be made movable along the rib 35 between the nail | claw part 36 and the reduced diameter cylinder part 32. FIG.

FIG. 4 is an enlarged cross-sectional view of the holding cylinder 30 portion of the dispensing cap 1 according to the second embodiment of the present invention. In the present embodiment, the length along the central axis of the rib 35 is shorter than that of the first embodiment. More specifically, the movement stroke of the valve body 40 inside the holding cylinder 30 is smaller than the diameter d _v of the valve body 40.

Thus, in the present embodiment, the valve body 40 is formed so as to form a spherical movement stroke of the valve body 40 inside the holding cylinder 30 is configured to be smaller than the diameter d _v of the valve body 40 . According to this configuration, the valve body 40 in the holding cylinder 30 is more surely moved when the inner solution is poured out without being easily affected by the deformation of the holding cylinder 30. Accordingly, the opening / closing operation of the opening 34 by the valve body 40 can be performed reliably, and the intrusion of outside air into the container 10 through the opening 34 is reliably prevented.

Further, by making the moving stroke amount of the valve body 40 inside the holding cylinder 30 smaller than the diameter d _{v of the} valve body 40, the protruding length of the holding cylinder 30 from the lower surface of the top wall portion 21 toward the inside of the container 10. The length can be shortened. Thereby, when the container 10 is tilted so that the dispensing cylinder 24 faces downward, the content liquid that does not flow into the opening 34 and accumulates between the outer peripheral surface of the holding cylinder 30 and the inner peripheral surface of the mouth portion 11. The amount of can be reduced. With this configuration, the remaining amount of content liquid remaining inside the container 10 without being poured out of the container 10 can be reduced.

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

  For example, in the said embodiment, although the pouring cap 1 of this invention is mounted | worn with the opening part 11 of the container 10 comprised by the lamination peeling container, it is not restricted to this, For example, an outer layer body, an inner layer body, It can also be attached to the mouth of a container having another configuration, such as a double container having

  Further, the number of ribs 35 is not limited to three, and three or more ribs 35 may be provided.

  Further, the valve body 40 is not limited to a spherical shape, and may be various shapes as long as it is accommodated in the holding cylinder 30 so as to be movable in the axial direction and can open and close the opening 34.

  Furthermore, the pouring cap 1 is not limited to a configuration in which the pouring cap 1 is mounted on the mouth portion 11 of the container 10 by plugging, but may be configured to be mounted by screwing.

DESCRIPTION OF SYMBOLS 1 Outflow cap 10 Container 11 Mouth part 11a Engagement protrusion 12 Outer layer body 13 Inner layer body 20 Cap main body 21 Top wall part 21a Locking protrusion 22 Mounting cylinder part 22a Engagement protrusion 23 Seal cylinder 24 Outlet cylinder 25 Cover body 25a Locking groove 26 Hinge 27 Plug body 28 Plug body projection (projection)
30 Holding cylinder 31 Cylindrical portion 32 Reduced diameter cylindrical portion 33 Opening cylindrical portion 34 Opening 35 Rib 36 Claw portion 36a Inner peripheral side surface 36b Outer peripheral side surface 36c Tip corner portion 36d Root corner portion 37 Retraction space 38 Step portion 40 Valve body

Claims (7)

A pouring cap that has a lid that covers the pouring cylinder, the liquid that is attached to the mouth of the container and is contained in the container is poured out from the pouring cylinder,
A cap body comprising: a top wall portion provided on the top surface of the dispensing tube; and a mounting tube portion provided continuously to the outer periphery of the top wall portion and surrounding the outer periphery of the mouth portion;
A holding cylinder comprising: a cylindrical portion that is continuous with the dispensing tube; and a reduced diameter cylindrical portion that is continuous with the lower end of the cylindrical portion and gradually decreases in diameter toward the lower side;
Inside the holding cylinder, a valve that is movably disposed between a claw part provided on the inner surface of the cylindrical part and the reduced diameter cylindrical part, and opens and closes an opening provided at a lower end of the reduced diameter cylindrical part. With body,
The claw portion protrudes obliquely upward from the inner surface of the cylindrical portion, and is provided with a stepped portion that forms a retraction space between the claw portion and the inner surface of the cylindrical portion,
An extraction cap characterized in that an angle α formed by a central axis of the cylindrical portion and an inner peripheral side surface of the claw portion is equal to or less than an angle β formed by a central axis of the cylindrical portion and an outer peripheral side surface of the claw portion. .   The extraction cap according to claim 1, wherein the claw portion is provided at one or more circumferential positions on the inner surface of the cylindrical portion.   The pouring cap according to claim 1 or 2, wherein a tip corner portion and a root corner portion of the claw portion are arcuate surfaces.   The dispensing cap according to any one of claims 1 to 3, wherein both the angle α and the angle β are in the range of 20 to 50 degrees.   The movement range is further restricted so that the valve body does not come into contact with the claw portion by a protrusion provided on a lower surface of the lid body when the dispensing cylinder is covered by the lid body. 5. The pouring cap according to any one of 1 to 4.   The plurality of ribs extending along the axial direction of the holding cylinder are provided on the inner peripheral surface of the holding cylinder at intervals in the circumferential direction, and the claw portion is provided integrally with the rib. 5. The pouring cap according to any one of 5 above.   The pouring cap according to any one of claims 1 to 6, wherein the valve body is formed in a spherical shape, and a moving stroke amount of the valve body inside the holding cylinder is smaller than a diameter of the valve body.

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