JP5470092B2 - Pouring cap - Google Patents

Description

  The present invention relates to a dispensing cap.

The pouring cap generally includes an inner plug member that is attached to the mouth of the container body and has an outlet port, and an overcap member that covers the outlet port of the inner plug member so as to be openable and closable. In addition, a closing body that closes the spout is connected via an easy breaking portion.
Conventionally, for example, as shown in Patent Document 1 below, a cylindrical body protrudes downward from the overcap member, and the first engaging portion faces inward in the cap radial direction to the cylindrical body. Is known, and a pouring cap is known in which an obstructing body is inserted into the cylindrical body, and a second engaging portion that is engaged with the first engaging portion from one side in the circumferential direction of the cap is erected. ing.
In this dispensing cap, when the overcap member is rotated to one side in the circumferential direction of the cap with respect to the inner plug member, the first engagement portion engages with the second engagement portion, so that the easy breaking portion is It is broken and opened by the shearing force in the circumferential direction of the cap.

Japanese Utility Model Publication No. 56-40687

  However, in the conventional pouring cap, for example, the external force applied to the overcap member is applied to the cylindrical body when the pouring cap is attached to the mouth after filling the contents in the container or before opening. There is a possibility that the easy breaking portion may be unexpectedly broken through the first engaging portion, the second engaging portion, and the closing body.

  The present invention has been made in consideration of such circumstances, and provides a dispensing cap that can prevent an easily broken portion from being unexpectedly broken by an external force applied to an overcap member. For the purpose.

In order to solve the above problems, the present invention proposes the following means.
The present invention includes an inner plug member that is attached to the mouth portion of the container body and has a spout formed therein, and an overcap member that covers the spout of the inner plug member so as to be openable and closable. And a closing cap that closes the spout is connected via an easy breaking portion, wherein one of the closing body and the overcap member has a first engagement portion in the cap radial direction. The other of the closure body and the overcap member is formed with an elastically deformable second engaging portion that protrudes in the cap radial direction and extends in the cap circumferential direction, By rotating the overcap member to one side in the cap circumferential direction with respect to the inner plug member, the tip end portion of the second engagement portion and the first engagement portion engage in the cap circumferential direction. Rotate to the other side of the cap circumferential direction By causing the second engagement portion is formed so as to elastically deform the cap radially through said first engagement portion, the occlusion member, the third provided in the over-cap member A fourth engagement portion that engages with the engagement portion and restricts the closure body from falling off the overcap member is provided, and a lower end of the closure body support cylinder that is suspended from the top wall portion of the overcap member The portion is externally fitted to the lower end portion of the closing body .

According to the dispensing cap of the present invention, the overcap member is rotated to one side in the circumferential direction of the cap with respect to the inner plug member, and the first engagement portion and the distal end portion of the second engagement portion are engaged. By doing so, the rotational force applied to the overcap member is transmitted to the easy breaking portion via both the engaging portion and the closing body, and the easy breaking portion is broken and opened.
Specifically, for example, the overcap member is disposed radially inward of the cylindrical body in which the first engagement portion is provided in the closing body, the second engagement portion is provided in the overcap member, and the first engagement portion is formed on the inner surface. If the overcap member is rotated toward the one side in the circumferential direction of the cap with respect to the inner plug member, the distal end portion of the second engagement portion is engaged with the first engagement portion. Engage with the joint from the other side in the circumferential direction of the cap.

Further, when the overcap member is rotated with respect to the inner plug member to the other side in the cap circumferential direction opposite to that at the time of opening, the first engagement portion and the second engagement portion come into sliding contact with each other. As a result, a force in the cap radial direction is generated, and the second engagement portion is pushed in the cap radial direction to be elastically deformed, and the second engagement portion passes over the first engagement portion and passes therethrough.
Since the second engagement portion is elastically deformable in the cap radial direction, for example, when the dispensing cap is attached to the mouth after filling the contents in the container, or before opening Even when an external force in a direction different from the unsealing direction is applied to the overcap member, the second engaging portion is elastically deformed before the external force is transmitted to the easily breaking portion through both the engaging portion and the closing body. Therefore, the easily broken portion can be prevented from breaking unexpectedly.

In addition , since the closing body is provided with the fourth engaging portion that engages with the third engaging portion provided on the overcap member and restricts the closing body from dropping off from the overcap member, as described above. When the easily broken portion is broken and opened, the closing body engages with the overcap member and is integrated with the overcap member, so that it can be prevented from falling off the overcap member. As this engagement, for example, the fourth engaging portion of the closing body is engaged with the third engaging portion of the overcap member from above, or the third and fourth engaging portions are fitted to each other. The technique to do is mentioned.
In addition, since the closing body is integrated with the overcap member at the time of opening, there is no trouble such as discarding the closing body separated from the inner plug member at the time of opening.

  Further, in the dispensing cap according to the present invention, the overcap member is screwed into the mouth portion of the container body, and the first engagement portion and the distal end portion of the second engagement portion are the overcap. The members may be engaged with each other when the member is rotated toward the loose side in the circumferential direction of the cap with respect to the mouth of the container body.

  According to the pouring cap according to the present invention, when the overcap member is rotated toward the loose side (one side) in the circumferential direction of the cap with respect to the mouth portion of the container body, One engaging portion is engaged, and the rotational force applied to the overcap member is transmitted to the easy breaking portion via both engaging portions and the closing body, and the easy breaking portion is broken and opened. On the other hand, when the overcap member is rotated to the tightening side (the other side) in the circumferential direction of the cap as opposed to opening, the second engaging portion is pushed in the cap radial direction while slidingly contacting the first engaging portion. Then, the second engaging portion passes over the first engaging portion and passes through the elastic deformation.

Therefore, even when the inner cap member does not rotate with the overcap member when the dispensing cap is attached to the container body, the second engaging portion is elastically deformed in the cap radial direction as described above. It is possible to surely suppress the easily broken portion from breaking unexpectedly.
In opening, when the overcap member, the container body, and the inner plug member are relatively rotated toward the loose side along the circumferential direction of the cap, the first engagement portion and the second engagement portion Are engaged with each other, and the easily broken portion is broken and opened as described above.
Further, in the dispensing cap according to the present invention, the overcap member is disposed in the outer cap in a state where rotation of the outer cap and the outer cap in the circumferential direction of the cap is restricted. An inner cap formed with a second engagement portion, and the outer cap may be made of a rigid body having a bending rigidity larger than that of the inner cap.

  According to the pouring cap according to the present invention, it is possible to prevent the easily broken portion from being unexpectedly broken by an external force applied to the overcap member.

It is a fragmentary sectional side view which shows the principal part of the extraction | pouring cap which concerns on one Embodiment of this invention, and the container body which mounted | wore with this. FIG. 2 is a partial upper cross-sectional view showing a main part of the dispensing cap of FIG. 1. It is a partial sectional side view explaining the unsealed state of the extraction | pouring cap of FIG. It is a fragmentary sectional side view which shows the modification of the extraction | pouring cap of FIG. It is a perspective view which shows the inner cap of the overcap member in the extraction | pouring cap of FIG. FIG. 5 is a partial upper cross-sectional view showing a main part of the dispensing cap of FIG. 4. It is a fragmentary sectional side view explaining the unsealed state of the extraction | pouring cap of FIG. It is a fragmentary sectional side view which shows the other example of the extraction | pouring cap which concerns on this invention. FIG. 9 is a partial upper cross-sectional view showing the AA cross section of FIG. 8. It is a disassembled perspective view which shows the stopper member of the extraction cap of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
The pouring cap 1 according to the present embodiment is made of a resin material, and is attached to, for example, the mouth portion 101 of the container body 100 filled with the liquid content as shown in FIG. The dispensing cap 1 includes an inner stopper member 10 in which an outlet 11 for extracting contents is formed, and an overcap member 20 that covers the outlet 11 of the inner stopper member 10 so as to be openable and closable.

  Here, the mouth portion 101, the inner plug member 10, and the overcap member 20 of the container body 100 are disposed in a state where their respective central axes are located on a common axis. Hereinafter, this common shaft is referred to as a cap shaft O, and in this dispensing cap 1, the overcap member 20 side along the cap shaft O is referred to as the upper side, and the mouth portion 101 side of the container body 100 is referred to as the lower side. A direction orthogonal to the cap radial direction is referred to as a cap radial direction, and a direction around the cap axis O is referred to as a cap circumferential direction.

  As shown in FIGS. 1 and 3, the mouth portion 101 of the container body 100 has a multistage cylindrical shape, and the upper portion of the mouth portion 101 is formed with a diameter smaller than that of the lower portion. A flange 101a that protrudes outward in the cap radial direction and extends annularly along the circumferential direction of the cap is formed at the lower end of the mouth portion 101. In the lower portion of the mouth portion 101, a male screw portion 101b is formed at a portion located above the flange 101a.

  In FIG. 1, the inner plug member 10 is formed in a cylindrical shape with a top and is fitted to the upper end portion of the mouth portion 101, and is inserted through the top wall portion of the inner plug body 12 so as to extend in the cap axis O direction. And a ring body 14 projecting from the lower end portion of the extraction cylinder 13 toward the inner side in the cap radial direction. In the example shown in the figure, the ring body 14 is connected to the lower end of the extraction tube 13 and is reduced in diameter toward the upper side, and the upper end opening edge serves as the outlet 11. The inner plug member 10 is attached to the mouth portion 101 in a state where movement in the cap axis O direction and the cap circumferential direction with respect to the mouth portion 101 is restricted.

A cylindrical body 12 a is suspended from the top wall portion of the inner plug main body 12 and is fitted into the upper end portion of the mouth portion 101.
Moreover, the upper end part of the extraction | suction pipe | tube 13 is formed so that a diameter may be gradually expanded as it goes upwards. In addition, a closing body 15 that closes the spout 11 is connected to the ring body 14 via an easy breaking portion 16 in the pouring cylinder 13.

  The closing body 15 has a multistage cylindrical shape, and its lower end is formed with a diameter larger than that of the upper end and the center. Further, the closing body 15 is formed with a disk-shaped partition wall 15 a that partitions an upper region and a lower region in the closing body 15. The lower end opening edge of the closing body 15 is connected to the upper end opening edge of the ring body 14 through a thin annular easy-breaking portion 16.

  A rib-shaped first engagement portion 17 that protrudes inward in the radial direction of the cap and extends up and down is provided at a portion of the closure body 15 that is positioned above the partition wall 15a. A plurality is formed by opening. As shown in FIG. 2, the first engagement portion 17 is gradually inclined toward the outer side in the cap radial direction from the top protruding inward in the cap radial direction toward the one side α along the cap circumferential direction. Is formed. The first engagement portion 17 is formed with a wall surface 17a facing the other side β along the circumferential direction of the cap.

  As shown in FIG. 1, a fourth engaging portion 18 that protrudes outward in the cap radial direction and extends along the circumferential direction of the cap is formed at the upper end portion of the closing body 15. The fourth engagement portion 18 is engaged with a third engagement portion 29 (described later) provided in the overcap member 20 from above, and restricts the occlusion body 15 from falling off the overcap member 20.

The overcap member 20 includes an outer cap 21 and an inner cap 22 disposed in the outer cap 21 and provided integrally with the outer cap 21.
The outer cap 21 has a cylindrical shape with a cap, and a female screw portion 21 a is formed at the lower end portion of the inner peripheral surface of the outer cap 21 and can be screwed into the male screw portion 101 b of the mouth portion 101. . Further, an inner cap support cylinder 21b is suspended from the outer peripheral edge portion of the top wall portion downward from the top wall portion of the outer cap 21. The inner cap support tube 21b has a claw portion 21c that protrudes inward in the cap radial direction.

  In addition, an annular restricting portion 23 that restricts the movement of the overcap member 20 in the cap axis O direction with respect to the mouth portion 101 of the container body 100 is connected to the lower end portion of the outer cap 21. A slight gap is provided between the lower end opening edge of the outer cap 21 and the upper end opening edge of the restricting portion 23, and these outer bridges 24 are arranged by a plurality of thin bridges 24 spaced apart in the circumferential direction of the cap. The cap 21 and the regulation part 23 are connected.

  A restriction claw 23 a that protrudes upward is formed in the lower end opening of the restriction 23. The restricting claw portion 23 a is formed such that the outer edge portion in the cap radial direction is thin and elastically deformable, and the upper end edge facing upward is disposed opposite to the lower surface of the flange 101 a of the mouth portion 101.

  A convex portion 21d that protrudes downward is formed at the lower end opening edge of the outer cap 21, and the upper end opening edge of the restricting portion 23 is directed downward at a position corresponding to the convex portion 21d. A recessed recess 23b is formed. The protrusion 21d and the recess 23b engage with each other to restrict the rotation of the outer cap 21 toward the other side β in the cap circumferential direction with respect to the restricting portion 23. On the other hand, when the outer cap 21 is rotated to one side α in the circumferential direction of the cap with respect to the restricting portion 23, the engagement of the convex portion 21 d and the concave portion 23 b is released, and the outer cap 21 is restricted to the restricting portion 23. And the bridge 24 is broken. As a result, the outer cap 21 is removed from the mouth portion 101, and the overcap member 20 can be attached to and detached from the mouth portion 101 by screwing.

  The inner cap 22 has a top tube shape, and an outer cylinder 25, a seal cylinder 26, a closing body support cylinder 27, and an inner cylinder 28 that are coaxial with the cap axis O are formed on the lower surface of the top wall portion. Are suspended in this order from the outside in the cap radial direction to the inside. The outer peripheral edge portion of the top wall portion of the inner cap 22 protrudes outward in the cap radial direction from the outer peripheral surface of the outer cylinder 25 and is engaged with the claw portion 21c of the outer cap 21 from above. Yes. The inner cap 22 is integrally disposed in the outer cap 21 in a state where rotation in the cap circumferential direction with respect to the outer cap 21 is restricted.

  The lower end opening edge of the outer cylinder 25 of the inner cap 22 is in contact with the upper surface of the top wall portion of the inner plug main body 12. Further, the seal cylinder 26 is fitted into the dispensing cylinder 13, and the lower end portion of the outer peripheral surface of the seal cylinder 26 is gradually inclined inward in the cap radial direction toward the lower side to form a tapered surface. Has been. Further, the lower end portion of the closing body support cylinder 27 is externally fitted to the lower end portion of the closing body 15. A third engagement portion 29 that protrudes inward in the cap radial direction and extends along the circumferential direction of the cap is formed at the upper end portion of the closing body support tube 27. The third engagement portion 29 is engaged with the fourth engagement portion 18 of the closing body 15 from below.

  As shown in FIG. 2, the inner cylinder 28 of the inner cap 22 has a second engagement portion 30 that protrudes outward in the cap radial direction and extends toward the one side α in the cap circumferential direction. A plurality are formed at intervals in the direction. The second engaging portion 30 is made of an elastically deformable plate-like body, and the upper surface thereof is connected to the top wall portion of the inner cap 22. And the front-end | tip part of the 2nd engaging part 30 is formed so that engagement with the wall surface 17a of the 1st engaging part 17 is possible from the other side (beta) of a cap circumferential direction. That is, when the overcap member 20 is rotated to the slack side (one side) α in the cap circumferential direction with respect to the mouth portion 101 of the container body 100, the wall surface 17a of the first engagement portion 17 and the second engagement portion 30 tip portions are engaged with each other.

  Further, the distance along the cap radial direction between the top portion protruding inward in the cap radial direction and the outer peripheral surface of the inner cylinder 28 in the first engagement portion 17 is set to be larger than the thickness dimension of the second engagement portion 30. Has been. And the 2nd engaging part 30 is formed so that it may pass the 1st engaging part 17 toward the other side (beta) of a cap circumferential direction by elastically deforming to a cap radial direction. Specifically, when the overcap member 20 is rotated to the tightening side (the other side) β in the cap circumferential direction with respect to the mouth portion 101 of the container body 100, the second engagement portion 30 is moved to the first engagement portion 17. It is elastically deformed inward in the radial direction of the cap while being slidably in contact with the top of the first engaging portion 17 and gets over the top.

  Next, a procedure for opening the spout 11 of the spout cap 1 configured as described above and pouring the contents of the container body 100 will be described.

  In FIG. 1, the overcap member 20 is rotated around the cap axis O toward the loose side (one side) α in the circumferential direction of the cap with respect to the mouth portion 101 of the container body 100. At this time, the distal end portion of the second engaging portion 30 in the inner cap 22 of the overcap member 20 moves to the loose side α as the rotation occurs, and as shown in FIG. The two engaging portions 17 and 30 are engaged with each other by coming into contact with the wall surface 17a of the first engaging portion 17 in the inner closing body 15.

  When the overcap member 20 is further rotated from this state, the rotational force is transmitted to the closing body 15 via the both engaging portions 17 and 30, and the closing body 15 is applied to the ring body 14 in the dispensing tube 13. As a result of the rotation, a shearing force along the circumferential direction of the cap is applied to the easy-breaking portion 16, and the easy-breaking portion 16 is broken. Thereby, the obturator 15 is separated from the inner plug member 10, and the spout 11 is opened. The separated closing body 15 is held by the overcap member 20 because the fourth engaging portion 18 is engaged with the third engaging portion 29 of the overcap member 20 from above.

  On the other hand, at the lower end portion of the outer cap 21 of the overcap member 20, the overcap member 20 is rotated toward the loose side α with respect to the mouth portion 101 and moved upward, thereby The bridge 24 that connects the cap 21 and the restricting portion 23 is broken.

  Next, as shown in FIG. 3, the overcap member 20 is removed from the mouth portion 101 to expose the spout 11. By tilting the container body 100 in this state, the contents are poured out from the spout 11.

As described above, according to the dispensing cap 1 according to the present embodiment, the overcap member 20 is rotated to the slack side α in the circumferential direction of the cap with respect to the inner plug member 10, and By engaging the wall surface 17 a and the tip of the second engaging portion 30, the rotational force applied to the overcap member 20 can be easily broken through the engaging portions 17 and 30 and the closing body 15. The easy-breaking portion 16 is broken and opened.
Specifically, in the present embodiment, the first engaging portion 17 is provided on the closing body 15, and the second engaging portion 30 is provided on the overcap member 20, and the overcap member 20 is placed around the cap member 10 with respect to the inner plug member 10. When rotating toward one side α in the direction, the tip of the second engagement portion 30 engages with the first engagement portion 17 from the other side β in the cap circumferential direction.

Further, when the overcap member 20 is rotated with respect to the inner plug member 10 in the cap circumferential direction (tightening side) β opposite to that at the time of opening, the first engagement portion 17 and the second engagement portion 30 Are in sliding contact with each other and a force in the cap radial direction is generated between them, and the second engagement portion 30 is pushed inward in the cap radial direction to be elastically deformed, and the second engagement portion 30 is in the first engagement. It passes over the joint portion 17 toward the other side β in the cap circumferential direction.
Since the second engaging portion 30 is elastically deformable in the cap radial direction, for example, when the dispensing cap 1 is attached to the mouth portion 101 after the container body 100 is filled with the contents, Alternatively, even if an external force in a direction different from the opening direction is applied to the overcap member 20 before opening or the like, the external force is transmitted to the easy breaking portion 16 via the both engaging portions 17 and 30 and the closing body 15. This is reduced by elastically deforming the second engagement portion 30 before, and the easy break portion 16 can be prevented from breaking unexpectedly.

Further, the closing body 15 has a fourth engaging portion 18 that engages with a third engaging portion 29 provided on the overcap member 20 from above and restricts the closing body 15 from falling off the overcap member 20. As described above, when the easy-breaking portion 16 is broken and opened as described above, the closing body 15 engages with the overcap member 20 and is integrated and falls off the overcap member 20. Can be prevented.
Further, since the lower end portion of the closing body support cylinder 27 is fitted on the lower end portion of the closing body 15 and engaged with each other, the overcap member 20 can hold the closing body 15 more reliably.
Further, since the closing body 15 is integrated with the overcap member 20 at the time of opening, there is no need for troubles such as discarding the closing body 15 separated from the inner plug member 10 at the time of opening.

  Further, in the present embodiment, the overcap member 20 is screwed to the mouth portion 101 of the container body 100, and the overcap member 20 is rotated relative to the mouth portion 101 toward the slack side α in the cap circumferential direction. Thus, the spout 11 is opened and exposed. That is, since the spout 11 can be automatically opened as the spout cap 1 is opened, it does not take time and effort.

In addition, at the time of manufacturing, even when the inner plug member 10 does not rotate with the overcap member 20 when the dispensing cap 1 is attached to the container body 100, the second engaging portion 30 is elastic in the cap radial direction. By making it deform | transform, it becomes possible to suppress reliably that the easy fracture | rupture part 16 will fracture | rupture unexpectedly as mentioned above.
When opening, when the overcap member 20, the container body 100, and the inner plug member 10 are rotated in a relatively loosening direction (a direction away from each other in the cap axis O direction), the first engagement portion 17 and the second engaging portion 30 are engaged with each other, and the easy breaking portion 16 is broken and opened as described above.

  When the outer cap 21 of the overcap member 20 is made of a rigid body having a bending rigidity larger than that of the inner cap 22, the rigid outer cap 21 is gripped during opening to stably cover the overcap member 20. It can be rotated in the circumferential direction. On the other hand, since the inner cap 22 is set to have a bending rigidity smaller than that of the outer cap 21, it is easy to ensure the elasticity of the second engaging portion 30 formed on the inner cap 22, and the second engaging portion 30 is It is surely elastically deformed, and the above-mentioned effects are exhibited.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the upper surface of the second engagement portion 30 is connected to the top wall portion of the inner cap 22, but the present invention is not limited to this. That is, for example, like the pouring cap 2 shown in FIGS. 4 to 7, a plurality of hole portions 31 are formed in the top wall portion of the inner cap 22 at intervals in the cap circumferential direction. The 2nd engaging part 30 may each be arrange | positioned in the inside. In this case, the second engagement portion 30 is supported only by the inner cylinder 28 and the elastic deformation is less likely to be restricted, and the second engagement portion 30 can easily pass over the first engagement portion 17.

In the above-described embodiment, the first engaging portion 17 is formed in the closing body 15 and the second engaging portion 30 is formed in the overcap member 20. However, the present invention is not limited to this. . For example, in the dispensing cap 3 shown in FIGS. 8 to 10 which is a reference example of the present invention , the second engaging portion 30 is formed on the closing body 15 and the first engaging portion 17 is formed on the overcap member 20. Has been. Moreover, the closing body 15 is arrange | positioned in the cylinder 34 by which the 1st engaging part 17 was formed in the inner surface. In this example, as shown in FIG. 9, the direction of the cap circumferential direction in which the second engagement portion 30 extends is different from that of the above-described embodiment. In addition, the first engaging portion 17 is connected to a cylindrical body 34 that is suspended from a portion of the top wall portion of the overcap member 20 that is located inward of the seal tube 26 in the cap radial direction. It protrudes toward the direction. Moreover, the wall surface 17a of the 1st engaging part 17 is formed facing the one side (alpha) of a cap circumferential direction. The cylindrical body 34 surrounds the closing body 15 from the outside in the cap radial direction.

As shown in FIGS. 8 and 10, the closing body 15 includes a top cylinder-shaped inner cylinder 32, and a top cylinder-shaped outer cylinder 33 that is externally fitted to the inner cylinder 32. The lower end portion of the inner cylinder 32 is connected to the ring body 14 in the dispensing cylinder 13 via the easy breaking portion 16. As shown in FIG. 9, the inner cylinder 32 is formed with a plurality of engaging convex portions 32a protruding outward in the cap radial direction at intervals in the cap circumferential direction. The outer cylinder 33 is formed with a plurality of engagement recesses 33a that are recessed outward in the radial direction of the cap in correspondence with the engagement protrusions 32a of the inner cylinder 32 with an interval in the cap circumferential direction. And the relative rotation to the cap peripheral direction of the inner cylinder 32 and the outer cylinder 33 is controlled by the engagement convex part 32a and the engagement recessed part 33a mutually engaging.
Further, the inner cylinder 32 is prevented from falling off the outer cylinder 33 by being fitted in the outer cylinder 33.

  The outer cylinder 33 is formed with a plurality of second engaging portions 30 that protrude outward in the radial direction of the cap and extend toward the other side β in the circumferential direction of the cap with an interval in the circumferential direction of the cap. . The distal end portion of the second engagement portion 30 is formed to engage with the wall surface 17a of the first engagement portion 17 from one side α in the cap circumferential direction.

  In the case of such a configuration of the pouring cap 3, when the overcap member 20 is rotated toward the slack side (one side) α in the circumferential direction of the cap with respect to the inner plug member 10, the wall surface of the first engaging portion 17. 17a is engaged with the tip of the second engaging portion 30. Then, the rotational force applied to the overcap member 20 is transmitted to the easy breakage portion 16 through the both engagement portions 17 and 30 and the closing body 15, the easy breakage portion 16 is broken, and the spout 11 is opened. Is done.

  In the pouring cap 3, a third engagement portion 29 is formed at the lower end portion of the cylindrical body 34 of the overcap member 20, and the lower surface of the second engagement portion 30 of the closing body 15 is the third engagement portion 29. The fourth engaging portion 18 is engaged with the engaging portion 29 from above. Thereby, the cylindrical body 34 can hold the closed body 15.

  Further, in the above-described embodiment, the fourth engaging portion 18 of the closing body 15 is engaged with the third engaging portion 29 from above, and the dropping of the closing body 15 with respect to the overcap member 20 is restricted. However, the engagement between the fourth and third engaging portions 18 and 29 may be other fitting or the like.

  Further, in the above-described embodiment, the first engagement portion 17 protrudes inward in the cap radial direction, and the third engagement portion 30 protrudes outward in the cap radial direction. However, on the contrary, the first engaging portion 17 protrudes outward in the cap radial direction, and the third engaging portion 30 protrudes inward in the cap radial direction. It is good as well.

  In the above-described embodiment, the overcap member 20 is screwed into the mouth portion 101 of the container body 100. However, the present invention is not limited to this. That is, for example, the overcap member 20 may be configured to be attached to and detached from the mouth portion 101 in the direction of the cap axis O and to be rotatable around the cap axis O. In this case, the spout 11 is opened only when the overcap member 20 is rotated to one side in the cap circumferential direction.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

1, 2, 3 Pouring cap 10 Inner plug member 11 Pouring port 15 Closure body 16 Easy breaking portion 17 First engaging portion 18 Fourth engaging portion 20 Overcap member 29 Third engaging portion 30 Second engaging portion 100 container body 101 mouth portion O cap shaft α one side along the circumferential direction of the cap (loose side)
β The other side along the circumferential direction of the cap (tightening side)

Claims (3)

An inner plug member attached to the mouth of the container body and formed with a spout,
An overcap member that covers the spout of the inner plug member so as to be openable and closable,
A discharge cap in which a closing body that closes the spout is connected to the inner plug member via an easy break portion,
One of the closure body and the overcap member has a first engagement portion protruding in the cap radial direction,
The other of the closure body and the overcap member is provided with a second engaging portion that is elastically deformable and protrudes in the cap radial direction and extends in the cap circumferential direction.
By rotating the overcap member to one side in the cap circumferential direction with respect to the inner plug member, the tip end portion of the second engagement portion and the first engagement portion engage in the cap circumferential direction. , By rotating to the other side in the circumferential direction of the cap, the second engaging portion is formed to elastically deform in the cap radial direction and pass through the first engaging portion ,
The closure body is provided with a fourth engagement portion that engages with a third engagement portion provided in the overcap member and restricts the closure body from falling off the overcap member,
The pouring cap , wherein a lower end portion of a closing body supporting cylinder suspended from a top wall portion of the overcap member is externally fitted to a lower end portion of the closing body . A dispensing cap according to claim 1 ,
The overcap member is screwed into the mouth of the container body,
The first engaging portion and the distal end portion of the second engaging portion are engaged with each other when the overcap member is rotated toward the slack side in the cap circumferential direction with respect to the mouth portion of the container body. A pouring cap characterized by that.   The dispensing cap according to claim 1 or 2,
  The overcap member is
  An outer cap,
  An inner cap disposed in the outer cap in a state in which rotation in the cap circumferential direction with respect to the outer cap is restricted; and an inner cap formed with the second engagement portion;
  The pouring cap, wherein the outer cap is made of a rigid body having a bending rigidity larger than that of the inner cap.

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