JP6202527B2 - Unplug cap - Google Patents

Description

  The present invention relates to a cap having an inner plug having a removable plug body, and more particularly to a stopper cap having an opening mechanism that does not use a pull ring.

  Conventionally, for food containers that contain dressings, seasonings, etc., in order to keep the inside of the container in a sealed state until opening, the removal wall part defined by the weakening part in the inner plug attached to the container mouth part A plug cap is widely used in which a partition wall is formed and a pull ring provided on the removal wall portion is pulled up to tear the removal wall portion and open the spout.

However, a relatively large force is required to pull up the pull ring and break the weakened portion, and it may be difficult for children and the elderly with weak fingertips to open.
Also, depending on how the pull ring is pulled up, the pull ring may be broken in the middle, making it difficult to open.
For this reason, a cap that can be opened not by a pull ring but by a rotation operation of a screwing portion of an overcap is conventionally known as a prior art (see, for example, Patent Document 1).

JP 2011-225220 A

In the cap 1 described in Patent Document 1, the separation portion 4 is disconnected from the main body portion 20 by tightening the screwed portion of the overcap 3, and the separation portion 4 is held by the overcap 3 after opening. And functions as an inner seal plug that seals the opening.
However, unlike the operation at the time of normal opening, the cap 1 is rotated in the direction in which the screw of the overcap is tightened once, and then is rotated in the direction in which the screw is loosened. Since it has to be removed and opened, there is a problem that it is difficult for the user to understand and takes time and effort.
In addition, there is a problem in that the separation portion 4 that only engages with the inner wall of the overcap 3 has insufficient sealing performance.

  An object of the present invention is to solve the above-mentioned problem, and it is possible to easily open the cap by simply rotating the cap in the screw releasing direction without using a pull ring, and when the cap is closed again after being opened. An object of the present invention is to provide a sanitary stopper cap by securely sealing the inside of the container.

In order to solve the above-described problems, the present invention provides an inner plug having a spout cylinder that is attached to the mouth portion of the container body as a plug cap and forms a spout to guide the contents, and is screwed into the plug. The inner plug is connected to the inner peripheral surface of the dispensing cylinder via a thinned weakened portion, and an annular first engaging protrusion is provided on the inner periphery. A stopper projecting a cylindrical wall provided with a first tooth portion on the outer periphery; the cap hanging from the top plate portion; and an engaging protrusion having an annular second engaging protrusion formed on the outer periphery; , an outer of the engaging projection, and the cut tube portion being disposed inside the pouring cylinder of the inner plug, and a threaded portion disposed on the outside of the disconnected tubular portion further among the pouring cylinder And a seal portion that abuts the peripheral surface and seals the spout, and when mounted on the inner plug, the second engaging protrusion overcomes the first engaging protrusion and is liquid-tight on the inner peripheral surface of the cylindrical wall. Fit and cut The inner periphery of the cylindrical portion, to adopt a configuration in which the second teeth to engage the first tooth portion only when is unscrewed the cap, characterized in that it is arranged.

As an embodiment of the stopper cap, the engaging projection, the cutting cylinder and the threaded portion are integrally suspended from the inner surface of the top wall formed on the top plate portion of the cap, and the first tooth portion and the second tooth portion are The ratchet mechanism that does not engage when the cap rotates in the screwing direction and engages when the cap rotates in the screwing direction, and is configured by a first tooth portion and a second tooth portion. The ratchet mechanism has a deformable engagement arm having an engagement tip on one side, an engagement surface engageable with the engagement tip on the other side, and a non-engagement surface that avoids engagement. The seal portion is formed at the lower part of the cutting cylinder portion . The seal portion is provided at the lower portion of the cutting cylinder portion . The structure characterized by this is adopted.

As another embodiment of the stopper cap, the cap is fitted with the cap body including a screw portion suspended from an annular first top wall having an opening formed in the top plate, Opening which consists of a small cover part provided with the engagement protrusion part and cutting cylinder part which were suspended from the 2nd top wall formed in the board part, and the 1st tooth part and the 2nd tooth part mesh mutually structure characterized by constituting a knurled portion, also sealed tube from the first top wall inner surface provided vertically on the inner side of the threaded portion, the sealed tube in contact with the inner peripheral surface of the pouring cylinder to the lower spout When the annular protrusion is formed on the inner peripheral surface together with the seal portion that seals and the small lid is fitted to the opening of the first top wall, the lower end of the cutting cylinder portion is liquid- tightly applied to the upper surface of the annular protrusion. A configuration characterized by being in contact with each other, and an inner cylinder and an outer cylinder forming an annular groove fitted to the mouth of the container body at the lower end of the inner stopper A sealing ring connected by a plurality of weakening connecting parts that can be broken is provided at the lower end of the outer peripheral wall forming the outer peripheral surface of the cap, and the outer peripheral surface of the outer cylinder of the inner plug A configuration characterized in that an opening knurling portion that meshes with each other is provided on the inner peripheral surface of the sealing ring.

The stopper cap of the present invention is engaged only when the cap is screwed between the stopper body connected to the inner peripheral surface of the outlet cylinder of the inner stopper via the thinned weakened portion and the cut cylinder portion of the cap. Since the first and second teeth are arranged, the cap can be opened without using a pull ring, and the cap can be released without performing difficult operations, just like a normal opening operation. It can be easily opened just by turning in the direction.
Further, since the annular second engaging protrusion provided on the engaging protrusion is liquid-tightly fitted to the inner peripheral surface of the cylindrical wall of the plug body, the rotational force of the cap is plugged via the ratchet mechanism. It is easy to be transmitted to the body, and the contents are not accumulated in the cylinder of the cylindrical wall, so that it can be made clean and hygienic.

It is a figure which shows the state immediately after being plugged in the 1st Example of a stopper cap, (b) is front sectional drawing, (a) is a sectional arrow view in the EE line of FIG. (B). (A) is a front view of the first embodiment cap before opening, (b) is a bottom view of the same. It is a figure which shows the inside stopper of the 1st Example stopper cap, (a) is a top view, (b) is a front half sectional view, (c) is an enlarged view of the principal part D of FIG. (B). It is a figure which shows the cap of 1st Example stopper cap, (a) is front sectional drawing, (b) is a bottom view. It is a cross-sectional arrow view in the FF line of Fig.4 (a). It is a figure which shows the ratchet operation | movement at the time of fastening the cap of the 1st Example stopper cap to an inside stopper. It is a figure which shows the state immediately after opening a 1st Example stopper cap, (b) is front sectional drawing, (a) is a sectional arrow directional view in the GG line of figure (b). It is a figure which shows the state before opening in the 2nd Example of a stopper cap, (b) is front sectional drawing, (a) is a sectional arrow view in the HH line | wire of figure (b). It is an enlarged view of the principal part K of FIG.8 (b).

  Next, the stopper cap of this invention is demonstrated with reference to drawings which showed the Example.

  1-7, A is a container main body, B is an inner stopper with which the container main body A is mounted | worn, C is a cap screwed and attached to the inner plug B.

As shown in FIGS. 1 and 2, the mouth portion 1 of the container main body A includes a locking ridge 2 that is fitted to the inner plug B and is held out.
As shown in FIG. 3, the inner plug B includes an outer cylinder 5 on the outer peripheral side, an inner cylinder 6 on the inner peripheral side, and an upper wall 7 positioned on the top surface side of the mouth part 1, and the mouth part 1 is fitted therein. A fitting tube portion 4 that forms an annular groove, a screw wall portion 8 that is erected and connected to the upper wall 7, and an extraction tube that is connected to the upper end of the screw wall portion 8 via a step portion 9. It consists of ten.

The dispensing cylinder 10 forms a spout for dispensing the contents stored in the container main body A, and includes a cylindrical base portion 11 and a lip portion 12 that expands at the top of the base portion 11 and curves outward. Have.
A plug body 16 is integrally connected to the inner peripheral surface of the base portion 11 of the dispensing cylinder 10 via a thinned weakened portion 15 formed over the entire circumference.
The plug body 16 has a cylindrical wall 17 standing upright at the top, and a bottom wall 14 and a thinned weakened portion 15 at the bottom to seal the spout.

The cylindrical wall 17 is provided with an engaging protrusion 18 that constitutes one first tooth portion of the ratchet mechanism on the outer periphery, and an annular first engaging protrusion 19 is provided on the inner periphery.
The engagement protrusion 18 includes an engagement surface 20 that is formed in a substantially radial direction that engages with a second tooth portion of the cap B, which will be described later, and a non-engagement surface 21 that includes a gentle slope formed on the opposite side in the circumferential direction. And have.
The bottom wall 14 is connected to the outer peripheral side of the cylindrical wall 17 at a predetermined height from the lower surface, and the outer peripheral side of the enlarged diameter portion 22, and gradually becomes thinner toward the outside and thinned. And a flange portion 23 that is continuous with the portion 15. On the lower surface, as shown in FIG. 2B, cross-shaped ribs 25 are formed by recesses 24 provided at four locations within a predetermined arc range. Yes.

The screw wall portion 8 is suspended from the outer peripheral edge of the step portion 9 continuously provided at the lower portion of the extraction tube 10 at the inner peripheral edge, and a male screw 27 is provided on the outer peripheral surface.
Further, on the inner peripheral surface of the screw wall portion 8, a reinforcing rib 28 that protrudes in the axial direction with the upper portion connected to the step portion 9 is projected.

In the fitting cylinder portion 4, the upper wall 7 is continuous at the inner peripheral edge at the lower portion of the screw wall portion 8, and the outer tube 5 and the inner tube 6 are suspended from the lower portion of the upper wall 7.
A fitting groove into which the mouth portion 1 of the container main body A is fitted is formed between the outer tube 5 and the inner tube 6, and a locking diameter-reducing portion that prevents the mouth portion 1 from coming off is formed on the inner periphery of the outer tube 5. 29 is provided.
Further, one knurl 30 a of the opening knurl portion 30 is provided on the outer peripheral surface of the outer cylinder 5.

As shown in FIGS. 4 and 5, the cap C has a top wall 40 provided on the top plate portion and an outer peripheral wall 41 suspended from the outer peripheral edge of the top wall 40, and the lower end of the outer peripheral wall 41. Are provided with sealing rings 43 connected by a plurality of weakening connecting portions 42 that can be broken.
On the inner surface of the top wall 40, a cutting cylinder part 46 and a screw cylinder part 47 are vertically suspended integrally with the top wall 40 in order from the engaging projection 45 provided in the vicinity of the center to the outside. The outer peripheral wall 41 is continuously provided by the reinforcing wall 48.

The engaging protrusion 45 has an annular second engaging protrusion 50 that extends over the first engaging protrusion 19 of the inner plug B and is liquid-tightly fitted to the inner peripheral surface of the cylindrical wall 17 on the outer periphery of the tip. Is formed.
The cutting cylinder portion 46 is provided with an engagement arm 52 that constitutes a second tooth portion that engages with the engagement protrusion 18 that constitutes the first tooth portion on the inner periphery, and the tip of the dispensing cylinder 10 at the tip. A seal portion 53 that abuts the inner peripheral surface and seals the spout is formed.
The length of the cutting cylinder part 46 extends to a position where the seal part 53 comes into contact with the base part 11 of the dispensing cylinder 10 and the tip part is fitted with the enlarged diameter part 22 of the plug body 16 with a slight gap.

As shown in FIG. 7, the engaging arm 52 has a substantially radial surface that engages with the engaging surface 20 of the engaging protrusion 18 when the cap C is rotated in the screw releasing direction when the cap is opened. A joint tip 54 is provided.
The engagement arm 52 is strong enough to transmit a rotational force capable of breaking the thinned weakened portion 15 and can move over the engagement protrusion 18 when the cap C is tightened as shown in FIG. It is made of a member having flexibility.

The screw cylinder portion 47 constituting the screw portion is provided with a female screw 55 that is screwed into the male screw 27 of the inner plug A on the inner periphery, and when the lower end comes into contact with the upper wall 7, the tightening of the cap C is completed.
At this time, the cutting tube portion 46 has the seal portion 53 in contact with the dispensing tube 10 and the tip portion is fitted with a small gap with the enlarged diameter portion 22 of the plug body 16, and at the same time, the second engaging protrusion 50. The height of the threaded cylinder portion 47 is set so that the first overhanging ridge 19 is passed over and the liquid-tight fitting is achieved.

A sealing ring 43 is connected to the lower end of the outer peripheral wall 41 by a plurality of breakable weakening connecting portions 42, and four weakening connecting portions 42 are provided in the circumferential direction as shown in FIG.
Further, on the upper surface of the sealing ring 43, upper protrusions 56 are provided at four locations in the circumferential direction so as not to overlap the weakened connecting portion 42 leaving a slight gap with the lower end of the outer peripheral wall 41.
The number and arrangement position of these weakening connection parts 42 and upper protrusions 56 are not limited to this, and can be set as appropriate.
On the inner peripheral surface of the sealing ring 43, a knurl 30 b that meshes with a knurl 30 a provided on the outer cylinder 5 of the inner plug A is formed, and constitutes an opening knurl portion 30.
Next, usage modes and operational effects of this embodiment will be described.

First, in order to attach the stopper cap of the present embodiment to the container main body A, the cap C is screwed and tightened to the inner stopper B, and the fitting cylinder portion 4 of the inner stopper B is applied to the mouth portion 1 from above. Plug.
As shown in FIG. 6, when the female screw 55 of the cap C is screwed into the male screw 27 of the inner plug B and tightened, the cap C rotates in the direction of the arrow R, and the engaging arm 52 is in the non-engaging surface 21. The cap C is allowed to rotate by overriding the engagement protrusion 18.
In addition, since the opening 1 is not fitted to the fitting cylinder 4 before the opening, the meshing of the knurling 30a of the outer cylinder 5 and the knurling 30b of the sealing ring 43 is loose. 43 rotates integrally with the cap C.
In order to fasten the cap C to the inner plug B, the inner plug B is fixed by using a jig that fits into the recess 24 shown in FIG. In order to fit and fix the jig, the reinforcing rib 28 may be used.

When the cap C is lowered by screwing, the second engagement protrusion 50 of the engagement protrusion 45 comes into contact with the first engagement protrusion 19 of the cylindrical wall 17 and further descends. The second engaging ridge 50 gets over the first engaging ridge 19 and is liquid-tightly fitted to the inner peripheral surface of the cylindrical wall 17.
As shown in FIG. 1, when the lower end of the screw cylinder portion 47 comes into contact with the upper wall 7 and the cap C is completely tightened, the seal portion 53 comes into contact with the dispensing cylinder 10 and is sealed.
At the same time, the second engaging ridge 50 gets over the first engaging ridge 19, engages with the lower portion of the first engaging ridge 19, and fits the inner peripheral surface of the cylindrical wall 17 in a liquid-tight manner. Therefore, the contents do not enter into the cylinder of the cylindrical wall 17 and accumulate.

When the tightening of the cap C is completed, as shown in FIG. 1A, the engagement tip portion 54 of the engagement arm 52 is disposed at a position away from the engagement surface 20 of the engagement protrusion 18. The tightening positions of the male screw 27 and the female screw 55 are set.
When the stopper cap of the present embodiment, which is tightened as described above, is plugged, the mouth portion 1 is fitted into the fitting cylinder portion 4 to slightly spread the outer cylinder 5 outwardly, and the knurl 30a of the outer cylinder 5 is expanded. And the knurling 30b of the sealing ring 43 come into tight engagement.
Therefore, since it cannot be opened unless the sealing ring 43 is removed, the opening state can be easily confirmed visually, and opening due to mischief or the like can be prevented.

In order to use the container in which the stopper cap of the present embodiment is stoppered and attached, the cap C is rotated in the screwing direction (the direction of arrow L in FIG. 7A).
When the rotation of the cap C starts, the unsealing knurled portion 30 is tightly engaged, so that the sealing ring 43 is prevented from rotating, and the weakened connecting portion 42 is first broken.
When the rotation is further advanced, as shown in FIG. 7A, the engagement tip portion 54 of the engagement arm 52 comes into contact with and engages with the engagement surface 20 of the engagement protrusion 18, and the rotational force of the cap C is increased. Is added to the plug 16 through the ratchet mechanism.

At this time, the second engaging protrusion 50 of the engaging protrusion 45 is tightly liquid-tightly fitted to the inner peripheral surface of the cylindrical wall 17 to reinforce the cylindrical wall 17 from the inside. The rotational force is easily transmitted to the plug body 16 via the ratchet mechanism. Therefore, the opening operation is easy and the thinned weakened portion 15 can be set relatively thick.
As shown in FIG. 7B, when the rotation of the cap C further proceeds, the thinned portion 15 is finally broken and the spout is opened, and the plug 16 separated from the pour tube 10 is cylindrical. It is pulled up by the engaging projection 45 that engages with the wall 17 and rises together with the cap C.

Here, as shown in FIG. 3C, the thin wall weakening portion 15 has an angle θ formed by the lower surface of the thin wall weakening portion 15 and the inner peripheral surface of the extraction tube 25 in the range of 40 to 80 °. More preferably, it is preferably about 60 °.
By forming the thinned weakened portion 15 in this manner, there is an effect that the second engagement protrusion can be easily fitted when tightened and can be easily broken when opened.

After the container is used, when the cap C is attached to the inner plug B again, the contents attached to the inner peripheral surface of the dispensing cylinder 10 due to the flange portion 23 of the plug body 16 and the broken pieces of the thinned weakened portion 15 Things are scraped off and the dispensing tube 10 can be kept clean.
In addition, the cutting cylinder portion 46 seals the inside of the container with the seal portion 53 coming into contact with the dispensing cylinder 10, and the distal end portion is fitted with a small gap with the enlarged-diameter portion 22 of the plug body 16. It is difficult for the contents to enter the inside of the cutting cylinder portion 46 from the gap.
Therefore, in combination with the fact that the intrusion of the contents into the cylinder of the cylindrical wall 17 is prevented by liquid-tight fitting between the second engaging protrusion 50 and the inner peripheral surface of the cylindrical wall 17, the stopper cap The inside can be kept clean, and when the cap C is removed, the contents do not sag and soil the surroundings.

Next, a description will be given of a second embodiment in which the configuration of the cap is changed as the configuration of the meshing mechanism of the first tooth portion and the second tooth portion is changed.
In the following, the same components as those in the first embodiment are denoted by the same reference numerals, and differences will be mainly described.

As shown in FIGS. 8 and 9, the cap Ca includes an outer cap body Ca <b> 1 and a small lid portion Ca <b> 2 that fits on the inner peripheral side of the cap body Ca <b> 1.
The cap body Ca1 is formed with an annular first top wall 140a having an opening 60 in the top plate portion, and is integrated with an outer peripheral wall 41 on the outer peripheral side of the first top wall 140a and a reinforcing wall 48 on the inner side of the outer peripheral wall 41. A threaded cylinder portion 47 is provided so as to be continuous with each other and constitute a threaded portion.

On the inner peripheral side of the first top wall 140a, an opening lower end portion 61 that engages with a fitting convex portion 66 of a small lid portion Ca2 to be described later is formed to have a diameter larger than that of the opening 60, and downward from the opening lower end portion 61. A sealing cylinder 63 is provided vertically.
An annular projecting portion 64 projects from the inner peripheral surface of the sealing cylinder 63, and a seal portion 153 that abuts the inner peripheral surface of the dispensing cylinder 10 of the inner plug B is formed at the tip of the sealing cylinder 63.

The small lid portion Ca <b> 2 has a second top wall 140 b formed on the top plate portion, an engaging projection 145 and a cutting cylinder portion 146 are suspended from the inner surface of the second top wall 140 b, and the outer periphery of the cutting cylinder portion 146 A fitting convex portion 66 that engages with the lower end portion 61 of the opening is formed on the surface.
When the small lid portion Ca2 is fitted into the opening portion 60 of the cap body Ca1, the fitting convex portion 66 gets over the opening portion 60 and engages with the opening lower end portion 61, and the lower end of the cutting cylinder portion 146 protrudes annularly. The small lid portion Ca2 is pressed by the lower end portion 61 of the opening and the upper surface of the annular projecting portion 64 to be fixed without loosening.
At the same time, the contact surface between the lower end of the cutting cylinder 146 and the upper surface of the annular protrusion 64 performs a sealing function, and prevents the contents in the container from leaking out.

A knurl 70b constituting the second tooth portion is formed on the inner peripheral side of the cutting cylinder portion 146 and is opened together with the knurl 70a constituting the first tooth portion provided on the outer peripheral surface of the cylindrical wall 17 of the inner plug B. A stopper knurl 70 is formed.
Other configurations are the same as those of the first embodiment.
Next, usage modes and operational effects of this embodiment will be described.

To assemble the stopper cap by tightening the cap Ca into the inner plug B, first, the cap body Ca1 is screwed into the inner plug B, and tightened until the lower end of the screw cylinder portion 47 comes into contact with the upper wall 7.
At this time, since the mouth portion 1 of the container is not fitted to the fitting cylinder portion 4, the meshing of the opening knurl 30 is loose, and the sealing ring 43 rotates integrally with the cap body Ca1 without separation. Similar to Example 1.

When the tightening of the cap body Ca <b> 1 is completed, the seal portion 153 of the sealing cylinder 63 comes into contact with the inner peripheral surface of the dispensing cylinder 10 and is sealed.
After completion of tightening, the positions of the knurls 70a and 70b are aligned so that the opening knurl 70 is engaged, and the small lid portion Ca2 is fitted into the opening 60.
The fitting convex portion 66 of the small lid portion Ca2 gets over the opening 60 and fits into the opening lower end 61. At the same time, the lower end of the cutting cylinder portion 146 comes into contact with the upper surface of the annular projecting portion 64, and the fitting attachment of the small lid portion Ca2 to the cap body Ca1 is completed (see FIG. 8).

When the assembly of the small lid portion Ca2 to the cap body Ca1 is completed, the second top wall 140b is flush with the first top wall 140a, and the small lid portion Ca2 is fitted to the opening lower end portion 61 so as to be integrated without loosening. Since it is fixed to the cap body, it does not fall off from the cap body Ca1.
The sealing tube 63 is sealed by the seal portion 153 coming into contact with the dispensing tube 10, and the tip portion is fitted with the diameter-enlarged portion 22 of the plug body 16 with a slight gap.
When the assembly of the small lid portion Ca2 is completed, the second engagement protrusion 50 of the engagement protrusion 145 gets over the first engagement protrusion 19 and is liquid-tightly fitted to the inner peripheral surface of the cylindrical wall 17. This is the same as that of the first embodiment in that the unsealed knurled portion 30 is tightly engaged when the cap Ca that has been assembled is plugged and attached to the container mouth portion 1.

In order to use the container equipped with the stopper cap of the present embodiment, the cap Ca is rotated in the screwing direction.
When a rotational force is applied to the cap main body Ca1, the sealing ring 43 is prevented from rotating by the opening knurled portion 30, and the weakened connecting portion 42 is broken and separated from the cap main body Ca1.
At the same time, the rotational force of the cap body Ca1 acts on the opening knurl 70 via the small lid Ca2 fixed integrally to the cap body Ca1.
The rotational force acts on the plug body 16 through the cylindrical wall 17 by the meshing and fitting knurls 70 a and 70 b, and finally the thinned weakened portion 15 is broken to remove the plug body 16 from the inner peripheral surface of the dispensing cylinder 10. Separate from and open.

After that, the plug body 16 separated from the dispensing cylinder 10 is integrated with the cap Ca by the engaging projection 45 that engages with the cylindrical wall 17 or used when the cap Ca is attached to the inner plug B again. Aspects and the like are the same as those in the first embodiment.
The stopper cap of the present embodiment is configured so that the cap Ca is assembled from the cap main body Ca1 and the small lid body Ca2, so that the configuration of the first tooth portion and the second tooth portion is knurled with a simple structure. Since it was able to be made, it can be made hard to break and cheap.
Other functions and effects are the same as those of the first embodiment.

  The stopper cap of the present invention can be easily opened by simply rotating the cap in the screw release direction without using a pull ring. Since it can be sealed and kept clean, it can be suitably used as a cap for containers for filling foods such as seasonings.

A Container body B Inner plug C, Ca cap Ca1 Cap body Ca2 Small lid 1 Mouth part 2 Locking protrusion 4 Fitting cylinder part 5 Outer cylinder 6 Inner cylinder 7 Upper wall 8 Screw wall part 9 Step part 10 Extraction cylinder DESCRIPTION OF SYMBOLS 11 Base 12 Lip part 14 Bottom wall 15 Thinning weakening part 16 Plug body 17 Cylindrical wall 18 Engagement protrusion (1st tooth part)
19 1st engagement protrusion 20 Engagement surface 21 Non-engagement surface 22 Expanded diameter part 23 Flange part 24 Recessed part 25 Cross-shaped rib 27 Male thread 28 Reinforcement rib 29 Locking reduced diameter part 30 Opening knurl part 30a, 30b Knurl 40 Top Wall (top plate)
41 outer peripheral wall 42 weakening connection part 43 sealing ring 45, 145 engagement protrusion 46,146 cutting cylinder part 47 screw cylinder part (screw part)
48 Reinforcing Wall 50 Second Engaging Projection 52 Engaging Arm (Second Tooth)
53,153 Seal part 54 Engagement tip part 55 Female thread 56 Upper projection 60 Opening part 61 Opening lower end part 63 Sealing cylinder 64 Annular protrusion 66 Fitting convex part 70 Opening knurl part 70a Knurl (first tooth part)
70b Knurl (second tooth)
140a First top wall (top plate)
140b Second top wall (top plate)

Claims (7)

An inner plug having an outlet tube that is attached to the mouth portion of the container main body and forms an outlet and guides the contents, and a cap that is screwed into the inner stopper and is detachably attached.
The inner plug is connected to the inner peripheral surface of the dispensing cylinder through a thinned weakened portion, and an annular first engaging protrusion is provided on the inner periphery and a cylindrical wall provided with a first tooth portion on the outer periphery is provided. With a plug to be installed,
The cap hangs from the top plate and has an engaging projection having an annular second engaging protrusion formed on the outer periphery thereof, and is disposed outside the engaging projection and inside the dispensing tube of the inner plug. comprising a cutting cylinder unit to be set, and a screw portion which is disposed outside the disconnected tubular portion, and a sealing unit for further sealing the contact with the spout on the inner peripheral surface of the pouring cylinder, attached to the inner plug When the second engaging ridge overhangs the first engaging ridge and is liquid-tightly fitted to the inner peripheral surface of the cylindrical wall, the inner periphery of the cut cylinder portion is only screwed off. A stopper cap characterized in that a second tooth portion that engages with the first tooth portion is disposed.   The engaging projection, the cutting cylinder and the threaded portion are integrally suspended from the inner surface of the top wall formed on the top plate portion of the cap, and the first tooth portion and the second tooth portion are arranged in the screwing direction of the cap. 2. The stopper cap according to claim 1, wherein the cap is a ratchet mechanism that does not engage when rotated and engages when rotated in a screwing direction.   A ratchet mechanism composed of a first tooth portion and a second tooth portion includes a deformable engagement arm having an engagement tip portion on one side, and an engagement surface engageable with the engagement tip portion on the other side. 3. An engagement protrusion having a non-engagement surface for avoiding engagement, wherein the engagement arm is deformed so as to get over the engagement protrusion when screwed. Unplug cap. The stopper cap according to any one of claims 1 to 3, wherein the seal portion is formed at a lower portion of the cutting cylinder portion . The cap has a cap body provided with a threaded portion suspended from an annular first top wall having an opening formed in the top plate portion, and a second body formed in the top plate portion and fitted into the opening portion. It consists of a small lid part provided with a locking projection part and a cutting cylinder part suspended from the top wall,
2. The cap according to claim 1, wherein the first tooth portion and the second tooth portion constitute an opening knurl portion that meshes with each other. Sealed tube from the first top wall inner surface provided vertically on the inner side of the threaded portion, the sealing tube is annular protrusion on the inner peripheral surface with a seal portion for sealing the spout in contact with the inner peripheral surface of the pouring cylinder to lower The lower end of the cutting cylinder portion is in liquid-tight contact with the upper surface of the annular protrusion when the small lid portion is formed and fitted into the opening of the first top wall. Unplug cap. The lower end of the inner plug is provided with a fitting cylinder portion including an inner cylinder and an outer cylinder that form an annular groove that fits into the mouth portion of the container body,
The lower end of the outer peripheral wall forming the outer peripheral surface of the cap is provided with a sealing ring connected by a plurality of weakening connecting parts that can be broken,
The unplugging cap according to any one of claims 1 to 6, wherein the outer peripheral surface of the outer cylinder of the inner plug and the inner peripheral surface of the sealing ring are provided with an opening knurl portion that meshes with each other.

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