JP2019006431A - cap - Google Patents

Abstract

To provide a cap capable of sufficiently transmitting a rotation torque to a separation part when rotating a lid.SOLUTION: A lid 5 has inside and outside holding parts 32, 33. A separation part 14 of an inside plug 4 is held between the inside holding part 32 and the outside holding part 33 of the lid 5, in a state where the lid 5 is closed. A first outer periphery side engagement part 41 is formed in an outer periphery of the separation part 14. A first inner periphery side engagement part 42 is formed in an inner periphery of the separation part 14. A second outer periphery side engagement part 50 is formed in the outer periphery of the inside holding part 32. A second inner periphery side engagement part 51 is formed in the inner periphery of the outside holding part 33. When rotating the lid 5 in an opening direction, the second inner periphery side engagement part 51 engages to the first outer periphery side engagement part 41 in the opening direction, and the second outer periphery side engagement part 50 engages to the first inner periphery side engagement part 42 in the opening direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cap attached to a mouth of a container.

  Conventionally, as this type of cap, for example, as shown in FIGS. 14 and 15, an inner plug 103 attached to the mouth portion 102 of the container 101, and a screw-type lid 104 detachably attached to the inner plug 103 by rotating. The inner plug 103 has a cylindrical detachment portion 106 surrounded by a weakened portion 105 that can be broken, and the weakened portion 105 breaks and the detachable portion 106 is detached from the inner plug 103. In some cases, a spout is formed in the inner plug 103.

  The lid 104 has a cylindrical holding part 110 inside. As shown in FIG. 14, with the lid 104 closed, the detaching portion 106 of the inner plug 103 is inserted into the holding portion 110 of the lid 104 from below. A plurality of outer peripheral side engaging portions 111 are formed on the outer periphery of the separation portion 106, and a plurality of inner peripheral side engaging portions 112 are formed on the inner periphery of the holding portion 110. Note that the outer peripheral engagement portion 111 is a protrusion that protrudes radially outward from the outer peripheral surface of the detachment portion 106, and the inner peripheral engagement portion 112 is a protrusion that protrudes radially inward from the inner peripheral surface of the holding portion 110. is there.

  According to this, when the lid 104 is rotated in the opening direction O, the inner peripheral side engaging portion 112 is engaged with the outer peripheral side engaging portion 111 in the opening direction O, thereby rotating torque when the lid 104 is rotated. Acts on the detaching portion 106 via the inner peripheral side engaging portion 112 and the outer peripheral side engaging portion 111, the weakening portion 105 is broken by this rotational torque, and the detaching portion 106 is detached from the inner plug 103, and the inner plug A spout is formed at 103.

  The cap as described above is described in, for example, Patent Document 1 below.

JP2016-8058

  However, in the above-described conventional type, when a large rotational torque acts on the outer peripheral side engaging portion 111 of the detaching portion 106, the detaching portion 106 and the outer peripheral side engaging portion 111 bend and escape to the radially inner side D2, and the rotational torque is sufficient. May not be transmitted to the detaching portion 106.

  An object of this invention is to provide the cap which can fully transmit the rotational torque at the time of rotating a lid | cover to a detached part.

In order to achieve the above object, the first invention has an inner stopper attached to the mouth of the container, and a screw-type lid that can be attached to and detached from the inner stopper by rotating.
The inner plug has a cylindrical detachment part surrounded by a weakened part that can be broken,
A cap in which a spout is formed in the inner plug when the weakened part is broken and the detachment part is detached from the inner plug,
The lid has cylindrical inner and outer holding portions disposed inside and outside in a double manner,
With the lid closed, the detachment part of the inner plug is held between the inner holding part and the outer holding part of the lid,
A first outer peripheral engagement portion is formed on the outer periphery of the separation portion,
A first inner peripheral engagement portion is formed on the inner periphery of the separation portion,
A second inner peripheral engagement portion is formed on the inner periphery of the outer holding portion,
A second outer peripheral engagement portion is formed on the outer periphery of the inner holding portion,
When the lid rotates in the opening direction, the second inner peripheral side engaging portion engages with the first outer peripheral side engaging portion in the opening direction, and the second outer peripheral side engaging portion is first in the opening direction. It engages with the inner peripheral side engaging portion.

  According to this, when the lid is rotated in the opening direction, in the opening direction, the second inner peripheral side engaging portion is engaged with the first outer peripheral side engaging portion, and the second outer peripheral side engaging portion is Engaging with the first inner peripheral engagement portion, the rotational torque when the lid is rotated thereby causes the second inner peripheral engagement portion, the first outer peripheral engagement portion, and the second outer peripheral side. It acts on the detachment portion via the engagement portion and the first inner peripheral engagement portion, and the weakening portion is broken by this rotational torque.

  At this time, since the detaching part is held between the inner holding part and the outer holding part of the lid, even if a large rotational torque acts on the first outer peripheral side and inner peripheral side engaging part of the detaching part, Preventing the detachment portion and the first outer peripheral side engagement portion from bending and escaping radially inward, or the detachment portion and the first inner peripheral side engagement portion from bending and escaping radially outward. Can do.

  Thereby, the rotational torque when the lid is rotated is sufficiently transmitted to the separation part, the weakening part is reliably broken, the separation part is detached from the inner plug, and a spout is formed in the inner plug.

  In the cap according to the second aspect of the invention, the first outer peripheral side engaging portion, the first inner peripheral side engaging portion, the second inner peripheral side engaging portion, and the second outer peripheral side engaging portion are each in the circumferential direction. Are formed in plural.

  According to this, when the lid is rotated in the opening direction, the plurality of second inner peripheral side engaging portions are engaged with the plurality of first outer peripheral side engaging portions in the opening direction, and the plurality of second inner side engaging portions are engaged. Since the outer peripheral side engaging portion engages with the plurality of first inner peripheral side engaging portions, the force in the opening direction is distributed and acts on the plurality of first outer peripheral side engaging portions on the outer peripheral side of the separation portion. In addition, the plurality of first inner peripheral side engaging portions act in a distributed manner on the inner peripheral side of the separation portion. For this reason, the force in the opening direction does not concentrate on any of the first outer peripheral engagement portion or the first inner peripheral engagement portion, and the first outer peripheral engagement portion and the first inner periphery are not concentrated. Damage to the side engaging portion can be prevented.

In the cap according to the third aspect of the invention, the first outer peripheral engagement portion is a protrusion that protrudes radially outward from the outer peripheral surface of the detachment portion,
The first inner peripheral engagement portion is a protrusion protruding radially inward from the inner peripheral surface of the detachment portion,
The second inner peripheral side engaging portion is a protrusion protruding radially inward from the inner peripheral surface of the outer holding portion,
The second outer peripheral side engaging portion is a protrusion protruding radially outward from the outer peripheral surface of the inner holding portion,
A second inner peripheral engagement portion is inserted between the first outer peripheral engagement portions adjacent to each other in the circumferential direction;
A second outer peripheral engagement portion is inserted between the first inner peripheral engagement portions adjacent to each other in the circumferential direction.

  According to this, when the lid is plugged from above with respect to the inner plug and the lid is attached to the inner plug, the second inner peripheral engagement portion of the lid is engaged with the first outer peripheral side of the inner plug from above. Since the second outer peripheral side engaging part of the lid is inserted between the first inner peripheral side engaging parts of the inner plug from above, it can be smoothly inserted into the inner plug without overdoing the lid. Can be plugged.

In the cap according to the fourth aspect of the invention, the first outer peripheral engagement portion has an outer guide portion that guides the outer holding portion radially outward of the detachment portion,
The first inner peripheral engagement portion has an inner guide portion that guides the inner holding portion radially inward of the detachment portion.

  According to this, when the lid is plugged from above with respect to the inner plug, and the lid is attached to the inner plug, the outer holding portion is radially outside the detachment portion by the outer guide portion of the first outer peripheral side engaging portion. Since the inner holding portion is guided radially inward of the detachment portion by the inner guide portion of the first inner peripheral side engagement portion, the detachment portion is surely interposed between the inner holding portion and the outer holding portion. Inserted.

  In the cap according to the fifth aspect of the invention, the first outer peripheral side engaging portions and the first inner peripheral side engaging portions are alternately arranged in the circumferential direction.

  According to this, when the lid is rotated in the opening direction, the plurality of second inner peripheral side engaging portions are engaged with the plurality of first outer peripheral side engaging portions in the opening direction, and the plurality of second inner side engaging portions are engaged. The outer peripheral engagement portion engages with the plurality of first inner peripheral engagement portions. At this time, since the first outer peripheral side engaging portions and the first inner peripheral side engaging portions are alternately arranged in the circumferential direction, the force in the opening direction is evenly distributed in the circumferential direction of the separating portion. Works. As a result, the force in the opening direction is not concentrated and concentrated on a specific location in the circumferential direction of the separation portion, and deformation of the separation portion can be prevented.

In the cap according to the sixth aspect of the invention, the detachment portion has a cylindrical portion and a closing portion that closes the bottom portion of the cylindrical portion,
A first outer peripheral engagement portion is formed on the outer periphery of the cylindrical portion;
The first inner peripheral engagement portion is formed on the inner periphery of the cylindrical portion.

  According to this, when the unused cap is attached to the mouth of the container, the bottom of the cylindrical part of the detaching part is closed by the closing part, so that the liquid in the container enters the cylindrical part of the detaching part. Can be prevented. Thereby, it can prevent that the liquid in a container adheres in the cylindrical part of a detachment | leave part, and remains as it is.

  The cap according to the seventh aspect of the present invention is provided with a gradient on the bottom surface of the closing portion for collecting and dropping the attached liquid.

  According to this, even if the liquid in the container adheres to the bottom surface of the closed portion with the unused cap attached to the mouth portion of the container, the adhered liquid is collected by the gradient of the bottom surface of the closed portion and is collected in the container. Dripping into. Thereby, the adhesion amount of the liquid adhering to the bottom surface of the closing portion is reduced.

  As described above, according to the present invention, when the weakened portion is broken by the rotational torque when the lid is rotated in the opening direction, the detachment portion is held between the inner holding portion and the outer holding portion of the lid. Even if a large rotational torque acts on the first outer peripheral side and the inner peripheral side engaging portion of the detachment portion, the detachment portion and the first outer peripheral side engagement portion bend radially away from the detachment portion, or the detachment portion It is possible to prevent the first inner peripheral engagement portion from being bent and escaping radially outward.

  Thereby, the rotational torque when the lid is rotated is sufficiently transmitted to the separation part, the weakening part is reliably broken, the separation part is detached from the inner plug, and a spout is formed in the inner plug.

It is a longitudinal cross-sectional view of the cap in embodiment of this invention. It is a XX arrow line view in FIG. It is a longitudinal cross-sectional view of a cap and shows a state of separation before the lid is plugged into the inner plug. It is a XX arrow line view in FIG. It is a partially expanded longitudinal cross-sectional view of the removal part of the inner cap of the cap. It is a XX arrow line view in FIG. It is a longitudinal cross-sectional view of a cap and shows a state where the detachment portion is detached from the inner plug and opened. It is a YY arrow line view in FIG. FIG. 2 is a partially enlarged longitudinal sectional view of the lid. It is an enlarged view of the sound-repellent mechanism provided in the cap. It is a XX arrow line view in FIG. It is a YY arrow line view in FIG. FIG. 4 is a partially enlarged cross-sectional view of the cap, in which the lid is rotated in the opening direction so that the second inner peripheral engagement protrusion engages with the first outer peripheral engagement protrusion and the second outer peripheral side; A mode that the engagement protrusion engaged with the 1st inner peripheral side engagement protrusion is shown. It is a longitudinal cross-sectional view of the conventional cap. It is a longitudinal cross-sectional view of a cap and shows a state of separation before the lid is plugged into the inner plug.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
In the first embodiment, as shown in FIG. 1, reference numeral 1 denotes a cap, an inner plug 4 attached to the mouth 3 of the container 2, and a screw-type lid that can be attached to and detached from the inner plug 4 by rotating. 5. The axial direction A of the cap 1 is defined as the vertical direction, the direction orthogonal to the axial center 36 of the cap 1 is defined as the radial direction B, and the circumferential direction centering on the axial center 36 is defined as the circumferential direction C.

  As shown in FIGS. 3 to 6, the inner plug 4 includes a pedestal portion 10 fitted in the mouth portion 3, a peripheral wall portion 11 provided on the pedestal portion 10, and a cylindrical shape provided on the peripheral wall portion 11. It has a dispensing cylinder 12 and a detaching part 14 surrounded by a weakened part 13 which is thin and breakable.

  A male screw 15 is formed on the outer peripheral surface of the peripheral wall portion 11. A plurality of first closing stoppers 16 protruding upward and a plurality of protrusions 17 protruding upward are provided on the upper surface of the peripheral wall portion 11.

  The detachment part 14 is inside the dispensing cylinder 12 and has a cylindrical part 19 whose upper part is open and a circular closing part 20 that closes the bottom part of the cylindrical part 19. The bottom surface 21 of the closing portion 20 has a circular arc shape in which the central portion swells downward, and has a gradient that causes the liquid 22 in the attached container 2 to collect at the central portion and be dropped.

  As shown in FIG. 7, the weakening portion 13 is broken and the detachment portion 14 is detached from the inner plug 4, whereby a spout 24 is formed in the pour tube 12.

  As shown in FIGS. 3, 8, and 9, the lid 5 is arranged in a circular top plate portion 30, a cylindrical skirt portion 31 depending from the outer peripheral edge of the top plate portion 30, and an inner and outer double. It has cylindrical inner and outer holding parts 32 and 33, a cylindrical peripheral cylinder part 34 with an open lower part, and a cylindrical closing cylinder part 35 with an open lower part. The inner and outer holding portions 32, 33, the peripheral cylinder portion 34, and the closing cylinder portion 35 are inside the skirt portion 31 and are arranged concentrically around the axis 36.

  On the inner peripheral surface of the peripheral cylinder portion 34, a female screw 38 that engages with the male screw 15 of the inner plug 4, a plurality of second closing stoppers 39, and a plurality of sound-repellent protrusions 40 are provided. When the lid 5 is turned in the closing direction S and fastened to the inner plug 4, the second closing stopper 39 comes into contact with the end of the first closing stopper 16 from the closing direction S, so that the lid 5 is moved further in the closing direction S. It is prevented from turning.

  Further, when the lid 5 is rotated in the opening direction O or the closing direction S, as shown in FIG. 10, the lower end portion of the sound-repellent protrusion piece 40 comes into contact with the protrusion 17 (see FIG. 4) of the inner plug 4 and protrudes. A sound is emitted each time the portion 17 passes in the circumferential direction C. The sound repellent protrusion 40 and the protrusion 17 constitute a sound repellent mechanism.

  As shown in FIGS. 1 and 2, with the lid 5 closed, the cylindrical portion 19 of the detaching portion 14 is sandwiched and held between the inner holding portion 32 and the outer holding portion 33 of the lid 5.

  As shown in FIGS. 3 to 6, a first outer peripheral engagement protrusion 41 (an example of the first outer peripheral engagement portion) is formed on the outer peripheral surface of the cylindrical portion 19 of the detachment portion 14. A first inner peripheral engagement protrusion 42 (an example of a first inner peripheral engagement portion) is formed on the inner peripheral surface.

  The first outer-side engagement protrusions 41 protrude radially outward from the outer peripheral surface of the cylindrical portion 19, and a plurality (for example, four) are formed at predetermined angles (for example, 90 °) in the circumferential direction C. . Further, the first inner peripheral engagement protrusion 42 protrudes radially inward from the inner peripheral surface of the cylindrical portion 19, and a plurality (for example, four) of the first inner peripheral engagement protrusions 42 are provided at predetermined angles (for example, 90 °) in the circumferential direction C. Is formed.

  Further, the first outer peripheral engagement protrusions 41 and the first inner peripheral engagement protrusions 42 are alternately arranged in the circumferential direction C. That is, the first inner peripheral engagement protrusion 42 is located at an intermediate position between the first outer peripheral engagement protrusions 41 adjacent to each other in the circumferential direction C, and the first inner peripheral side adjacent to each other in the circumferential direction C. The first outer peripheral engagement protrusion 41 is located at an intermediate position of the engagement protrusion 42.

  The first outer peripheral engagement protrusion 41 has a first outer guide portion 45 that guides the outer holding portion 33 to the radially outer side D <b> 1 of the detachment portion 14 at an upper portion thereof. The first outer guide portion 45 is an inclined portion that is inclined toward the radially outer side D <b> 1 toward the lower portion. The first outer peripheral engagement protrusion 41 has a sharp upper end that is gradually narrowed.

  The first inner peripheral engagement protrusion 42 has a first inner guide portion 46 that guides the inner holding portion 32 to the radially inner side D <b> 2 of the detachment portion 14 at the upper portion thereof. The first inner guide portion 46 is an inclined portion that is inclined toward the radially inner side D2 as the lower portion thereof. Note that the first inner peripheral engagement protrusion 42 has a sharp upper end and is sharpened.

  As shown in FIGS. 3, 8, 9, 11, and 12, the second outer peripheral engagement protrusion 50 (an example of the second outer peripheral engagement portion) is formed on the outer peripheral surface of the inner holding portion 32 of the lid 5. ) And a second inner peripheral engagement protrusion 51 (an example of a second inner peripheral engagement portion) is formed on the inner peripheral surface of the outer holding portion 33.

  The second outer peripheral engagement protrusion 50 protrudes radially outward from the outer peripheral surface of the inner holding portion 32, and a plurality (for example, four) are formed at predetermined angles (for example, 90 °) in the circumferential direction C. Yes.

  In addition, the second inner peripheral engagement protrusion 51 protrudes radially inward from the inner peripheral surface of the outer holding portion 33, and a plurality (for example, four) of the second inner peripheral engagement protrusions 51 are provided at predetermined angles (for example, 90 °) in the circumferential direction C. ) Is formed.

  Further, the second outer peripheral side engaging protrusions 50 and the second inner peripheral side engaging protrusions 51 are alternately arranged in the circumferential direction C. That is, the second inner peripheral engagement protrusion 51 is positioned at an intermediate position between the second outer peripheral engagement protrusions 50 adjacent to each other in the circumferential direction C, and the second inner peripheral side adjacent to each other in the circumferential direction C. A second outer peripheral engagement protrusion 50 is located at an intermediate position of the engagement protrusion 51.

  The second outer peripheral engagement protrusion 50 has a second outer guide part 55 for guiding the cylindrical part 19 of the detachment part 14 to the radially outer side D1 of the inner holding part 32 at the lower part thereof. The second outer guide part 55 is an inclined part that inclines toward the radially outer side D1 as it goes upward.

  The second inner peripheral engagement protrusion 51 has a second inner guide portion 56 that guides the cylindrical portion 19 of the detachment portion 14 to the radially inner side D2 of the outer holding portion 33 at the lower portion thereof. The second inner guide part 56 is an inclined part that inclines toward the radially inner side D2 as it goes upward.

As shown in FIG. 2, the second inner peripheral engagement protrusion 51 is inserted between the first outer peripheral engagement protrusions 41 adjacent in the circumferential direction C, and the first inner protrusions adjacent in the circumferential direction C are inserted. A second outer peripheral engagement protrusion 50 is inserted between the peripheral engagement protrusions 42.
When the lid 5 is rotated in the opening direction O from the unused state shown in FIG. 2, the second inner peripheral engagement protrusion 51 is the first outer peripheral engagement protrusion in the opening direction O as shown in FIG. 13. 41, and the second outer peripheral engagement protrusion 50 engages with the first inner peripheral engagement protrusion 42 in the opening direction O.

  Hereinafter, the operation of the above configuration will be described.

  As shown in FIG. 3, when the lid 5 is plugged into the inner plug 4 from the upper side to the lower side and attached to the inner plug 4, as shown in FIG. The inner peripheral engagement protrusion 51 is inserted between the first outer peripheral engagement protrusions 41 adjacent to each other in the circumferential direction C of the inner plug 4, and the second outer peripheral engagement protrusion 50 of the lid 5 is inserted into the inner plug. 4 in the circumferential direction C, and is inserted between the first inner peripheral engagement protrusions 42 adjacent to each other. For this reason, it is possible to smoothly plug into the inner plug 4 without overdoing the lid 5.

  In the case of the above-described stoppering, as shown in FIG. 5, the outer holding portion 33 of the lid 5 is moved by the first outer guide portion 45 of the first outer peripheral side engaging projection 41 of the detaching portion 14. The inner holding portion 32 is guided to the radially inner side D2 of the detachable portion 14 by the first inner guiding portion 46 of the first inner peripheral engagement protrusion 42 while being guided to the radially outer side D1. Thereby, the detachment part 14 is accurately inserted between the inner holding part 32 and the outer holding part 33.

  Further, in the case of the above-described stoppering, as shown in FIG. 9, the cylindrical portion 19 of the detaching portion 14 is moved to the inner holding portion by the second outer guiding portion 55 of the second outer peripheral engagement protrusion 50. 32 and is guided to the radially inner side D2 of the outer holding portion 33 by the second inner guide portion 56 of the second inner peripheral engagement protrusion 51. Thereby, as shown in FIG. 1, the inner holding portion 32 is accurately inserted into the radially inner side D <b> 2 of the cylindrical portion 19 of the detachable portion 14, and the outer holding portion 33 is accurately inserted into the cylindrical portion 19 of the detachable portion 14. It is fitted on the radially outer side D1.

  After the lid 5 is attached to the inner stopper 4 by the above-described stoppering, the unused cap 1 is attached to the mouth 3 of the container 2. In this state, as shown in FIG. 1, since the bottom of the cylindrical portion 19 of the detaching portion 14 is closed by the closing portion 20, the liquid 22 in the container 2 enters the cylindrical portion 19 of the detaching portion 14. Can be prevented. Thereby, it can prevent that the liquid 22 in the container 2 adheres in the cylindrical part 19 of the detachment | leave part 14, and remains as it is.

  Further, even if the liquid 22 in the container 2 adheres to the bottom surface of the closing portion 20, the adhering liquid 22 remains at the center of the closing portion 20 due to the gradient of the arc-shaped bottom surface 21 of the closing portion 20 as shown in FIG. Is collected in a portion and dropped into the container 2. Thereby, the adhesion amount of the liquid 22 adhering to the bottom surface 21 of the closing part 20 is reduced.

  Thereafter, to open the cap 1 and take out the liquid 22 in the container 2, the lid 5 may be rotated in the opening direction O. At this time, as shown in FIG. 13, in the opening direction O, the plurality of second inner peripheral engagement protrusions 51 engage with the plurality of first outer peripheral engagement protrusions 41 and the plurality of second engagement protrusions 41. The outer peripheral engagement protrusion 50 engages with the plurality of first inner peripheral engagement protrusions 42.

  As a result, the rotational torque when the lid 5 is rotated becomes the second inner peripheral engagement protrusion 51, the first outer peripheral engagement protrusion 41, the second outer peripheral engagement protrusion 50, and the first inner peripheral side. It acts on the detachment portion 14 via the engagement protrusion 42, and the weakening portion 13 is broken by this rotational torque.

  At this time, since the cylindrical portion 19 of the separation portion 14 is sandwiched and held between the inner holding portion 32 and the outer holding portion 33 of the lid 5, a large rotational torque is generated on the first outer peripheral side of the separation portion 14 and Even if it acts on the inner peripheral engagement protrusions 41, 42, the detachment portion 14 or the first outer peripheral engagement protrusion 41 bends and escapes radially inward, or the detachment portion 14 or the first inner peripheral side. It is possible to prevent the engagement protrusion 42 from escaping radially outward.

  Thereby, the rotational torque at the time of rotating the lid 5 is sufficiently transmitted to the detaching portion 14, the weakening portion 13 is surely broken, and the detaching portion 14 is detached from the inner plug 4, as shown in FIG. A spout 24 is formed in the inner plug 4.

  Further, when the cap 5 is opened by turning the lid 5 in the opening direction O as described above, the force in the opening direction O is applied to the plurality of first outer peripheral engagement protrusions 41 on the outer peripheral side of the detachment portion 14. In addition to acting in a distributed manner, it acts in a distributed manner on the plurality of first inner circumferential engagement protrusions 42 on the inner circumferential side of the detachment portion 14. Therefore, the force in the opening direction O does not concentrate on any of the first outer peripheral engagement protrusions 41 or the first inner peripheral engagement protrusions 42, and the first outer peripheral engagement protrusion 41 or the first It is possible to prevent damage to the inner peripheral side engaging projection 42 of the one.

  Further, the first inner peripheral engagement protrusion 42 is positioned at an intermediate position between the first outer peripheral engagement protrusions 41 adjacent to each other in the circumferential direction C, and the first inner peripheral side adjacent to each other in the circumferential direction C. Since the first outer peripheral engagement protrusion 41 is located at an intermediate position of the engagement protrusion 42, the force in the opening direction O acts evenly distributed in the circumferential direction C of the detachment portion 14. Thereby, the force in the opening direction O is not concentrated and concentrated on a specific portion in the circumferential direction C of the separation portion 14, and deformation of the separation portion 14 can be prevented.

  As shown in FIG. 7, the lid 5 is rotated in the opening direction O so that the detaching portion 14 is detached from the inner plug 4 and the lid 5 is removed from the inner plug 4. Since 24 is formed, the liquid 22 in the container 2 can be poured out from the dispensing cylinder 12 to the outside. At this time, the detaching portion 14 that has been detached from the inner plug 4 is held between the inner holding portion 32 and the outer holding portion 33 of the lid 5.

  Thereafter, by turning the lid 5 in the closing direction S and attaching it to the inner plug 4, as shown in FIG. 1, the closing cylinder portion 35 of the lid 5 is in close contact with the inner periphery of the tip end portion of the dispensing cylinder 12 over the entire circumference. The spout 24 is closed with the lid 5. When the lid 5 is turned in the closing direction S and fastened to the inner plug 4, the second closing stopper 39 comes into contact with the end portion of the first closing stopper 16 from the closing direction S, so that the lid 5 is further closed in the closing direction. Turn to S is prevented.

  Further, by rotating the lid 5 in the closing direction S or the opening direction O, a sound is generated when the lower end portion of the sound-repellent protrusion 40 abuts on the protrusion 17 and climbs over the protrusion 17 in the circumferential direction C. .

DESCRIPTION OF SYMBOLS 1 Cap 2 Container 3 Mouth part 4 Inner plug 5 Lid 13 Weak part 14 Separation part 19 Cylindrical part 20 Closure part 21 Bottom face 24 Outlet 32 Inner holding part 33 Outer holding part 41 Outer peripheral engagement part)
42 1st inner peripheral side engaging protrusion (1st inner peripheral side engaging part)
45 1st outer side guide part 46 1st inner side guide part 50 2nd outer peripheral side engaging protrusion (2nd outer peripheral side engaging part)
51 2nd inner peripheral side engaging protrusion (2nd inner peripheral side engaging part)
C Circumferential direction D1 Radial direction outer side D2 Radial direction inner side O Opening direction

Claims (7)

It has an inner stopper attached to the mouth of the container, and a screw-type lid that can be attached to and detached from the inner stopper by rotating,
The inner plug has a cylindrical detachment part surrounded by a weakened part that can be broken,
A cap in which a spout is formed in the inner plug when the weakened part is broken and the detachment part is detached from the inner plug,
The lid has cylindrical inner and outer holding portions disposed inside and outside in a double manner,
With the lid closed, the detachment part of the inner plug is held between the inner holding part and the outer holding part of the lid,
A first outer peripheral engagement portion is formed on the outer periphery of the separation portion,
A first inner peripheral engagement portion is formed on the inner periphery of the separation portion,
A second inner peripheral engagement portion is formed on the inner periphery of the outer holding portion,
A second outer peripheral engagement portion is formed on the outer periphery of the inner holding portion,
When the lid rotates in the opening direction, the second inner peripheral side engaging portion engages with the first outer peripheral side engaging portion in the opening direction, and the second outer peripheral side engaging portion is first in the opening direction. A cap characterized in that the cap engages with an inner peripheral side engaging portion. A plurality of first outer peripheral side engaging portions, first inner peripheral side engaging portions, second inner peripheral side engaging portions, and second outer peripheral side engaging portions are formed in the circumferential direction. The cap according to claim 1, characterized in that: The first outer peripheral engagement portion is a protrusion protruding radially outward from the outer peripheral surface of the detachment portion,
The first inner peripheral engagement portion is a protrusion protruding radially inward from the inner peripheral surface of the detachment portion,
The second inner peripheral side engaging portion is a protrusion protruding radially inward from the inner peripheral surface of the outer holding portion,
The second outer peripheral side engaging portion is a protrusion protruding radially outward from the outer peripheral surface of the inner holding portion,
A second inner peripheral engagement portion is inserted between the first outer peripheral engagement portions adjacent to each other in the circumferential direction;
The cap according to claim 2, wherein a second outer peripheral side engaging portion is inserted between the first inner peripheral side engaging portions adjacent to each other in the circumferential direction. The first outer peripheral engagement portion has an outer guide portion that guides the outer holding portion radially outward of the detachment portion,
4. The cap according to claim 2, wherein the first inner peripheral side engaging portion has an inner guide portion that guides the inner holding portion to the inner side in the radial direction of the detachment portion. The cap according to any one of claims 2 to 4, wherein the first outer peripheral side engaging portions and the first inner peripheral side engaging portions are alternately arranged in the circumferential direction. . The detachment portion has a cylindrical portion and a closing portion that closes a bottom portion of the cylindrical portion,
A first outer peripheral engagement portion is formed on the outer periphery of the cylindrical portion;
The cap according to any one of claims 1 to 5, wherein the first inner peripheral engagement portion is formed on an inner periphery of the cylindrical portion. The cap according to claim 6, wherein a gradient is provided on the bottom surface of the closing portion to collect and drop the attached liquid.

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