JP2023111563A - Shift plug cap - Google Patents

Abstract

To provide a shift plug cap capable of restraining its contents from accumulating on a rear surface of a shift plug body shifted to a screw cap when a lid is opened.SOLUTION: A shift plug cap comprises an inside plug B mounted to a mouth part 1 of a container body A and a screw cap C detachably mounted by screwing to the inside plug B. The inside plug B comprises a pouring cylinder 10 and a shift plug body 12 which is continuously connected to an inner peripheral surface of the pouring cylinder 10 via a thin-walled weakened part 11 and on which a first engagement part 18 is formed in a circumferential direction. The screw cap C comprises: a top wall 40; a sealing tube part 43 hung down from the top wall 40 for sealing the pouring cylinder 10 at the outer periphery when a lid is closed; and a second engagement part 51 capable of engaging with the first engagement part 18 of the shift plug body 12. The shift plug body 12 comprises: a bottom wall 13 for blocking a spout inside the thin-walled weakened part 11; a cylindrical wall 14 raised from the bottom wall 13; and a ring-shaped gap α concaved on a lower outer periphery side of the cylindrical wall 14.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a transfer plug cap provided with an inner plug having a transfer plug body, and more particularly to a transfer plug cap that can be opened by rotating a screw cap in a lid opening direction.

Conventionally, as a food container for storing contents such as dressing, the inside of the container body is sealed by an inner plug having a transition plug until it is opened, and a screw cap that is screwed and attached to the inner plug is opened. There is known a transition stopper cap that can be opened by rotating the inner stopper to remove the transition stopper from the inner stopper and hold the transition stopper in the engaging portion of the screw cap (for example, Patent Document 1 reference).

Japanese Patent Application Laid-Open No. 2022-11921

However, the transition plug cap described in Patent Document 1 can be opened with a reduced opening torque without increasing the stress applied to the thin weakened portion simply by rotating the screw cap in the lid opening direction. The diameter of the outlet hole can be increased, but after opening, the transition plug, which is transferred to the screw cap, has a large recess (gap) formed on the back side, so the contents tend to accumulate and the screw cap becomes unusable. When the cap is opened, there is a problem that the contents accumulated on the rear surface of the transfer stopper tend to drip.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. To provide a transfer plug cap capable of suppressing accumulation of contents on the rear surface of a transfer plug body transferred to a screw cap when the cap is opened.

In order to solve the above-described problems, the present invention provides a transition stopper cap that includes an inner stopper that is attached to the mouth of a container body, and a screw cap that is detachably attached by being screwed to the inner stopper. The cap, wherein the inner plug comprises a pouring tube and a transition plug body connected to the inner peripheral surface of the pouring tube via a thin weakened portion and having a first engaging portion formed in the circumferential direction. , the screw cap has a top wall, an airtight envelope portion depending from the top wall and sealing the dispensing tube around its outer periphery when the lid is closed, and a second engagement portion engageable with the first engagement portion of the transition plug. The transition plug body includes a bottom wall that blocks the pouring port inward from the thin weakened portion, a cylindrical wall erected from the bottom wall, and a ring that is recessed on the outer peripheral side of the lower portion of the cylindrical wall. A configuration characterized by having a gap of a shape is adopted.

As an embodiment of the transition plug cap, the bottom wall of the transition plug body includes a central bottom wall that seals the inner peripheral side of the lower end of the cylindrical wall, and a ring extending radially from the outer periphery of the cylindrical wall with a gap interposed therebetween. The peripheral bottom wall comprises a ring-shaped annular wall extending radially from the middle stage of the outer circumference of the cylindrical wall, and an annular wall and a flange portion extending outward from the lower outer periphery of the enlarged diameter tubular portion and connected to the thin weakened portion. In addition, the transition plug body adopts a configuration characterized by having a columnar protrusion erected from the center of the bottom wall and provided with a gate at the tip, and a gap is formed in the transition plug body A configuration characterized by comprising a plurality of gap ribs protruding radially from the outer peripheral surface of the cylindrical wall that is formed is adopted.

In the transition plug cap of the present invention, by adopting the above-described configuration, after the screw cap of the transition plug cap is turned in the lid opening direction and unsealed, the contents are transferred to the back surface of the transition plug body that is transferred to the screw cap. It becomes difficult for the contents to accumulate, and it is possible to suppress the contents from dripping from the rear surface of the transfer stopper when the lid is opened.

FIG. 4A is a side cross-sectional view, and FIG. 4B is an enlarged view of a main part of FIG. . It is a figure which shows the inside plug in the transition plug cap of an Example, (a) is a top view, (b) is a side half sectional view. FIG. 4 is a bottom view of the inner plug in the transition plug cap of the example. It is a figure which shows the screw cap in the transition plug cap of an Example, (a) is side sectional drawing, (b) is a bottom view.

Next, the transition plug cap of the present invention will be described with reference to the drawings with examples.
In the following description, referring to FIG. 1, the upward direction is defined as "up", the downward direction is defined as "down", and the horizontal direction is defined as "radial direction".

In FIG. 1, A is a container main body, B is an inner plug attached to the container main body A, and C is a screw cap detachably attached to the inner plug B by screwing.
As shown in FIG. 1, the container main body A is provided with a locking projection 2 fitted to a mouth portion 1 to hold an inner plug B to prevent it from coming off.

As shown in FIGS. 1 and 2, the inner plug B is composed of an outer cylinder 5 on the outer peripheral side, an inner cylinder 6 on the inner peripheral side, and an upper wall 7 located on the top surface side of the mouth portion 1. A mounting portion 4 forming an annular groove into which the mouth portion 1 of the mounting portion 4 is fitted, a threaded wall portion 8 erected from the mounting portion 4, and a ceiling wall 9 extending inwardly from the upper end of the inner periphery of the threaded wall portion 8. and a pouring tube 10 erected from the upper surface of the ceiling wall 9.

The pouring tube 10 has a pouring port for pouring out the contents contained in the container main body A formed on the inner peripheral side, and the upper portion is enlarged in diameter and curved outward.
A transfer stopper 12 is integrally connected to the inner peripheral side of the lower end of the pouring tube 10 via a thin weakened portion 11 formed over the entire periphery.

The transition plug body 12 has a thin weakened portion 11 connected to its outer periphery, a bottom wall 13 blocking the spout inward from the thin weakened portion 11, and a cylindrical wall 14 erected from the inside of the bottom wall 13. The bottom wall 13 is a circular central bottom wall 16 that blocks the inner peripheral side of the lower end of the cylindrical wall 14 and has a columnar protrusion 15 with a gate G at the tip erected from the center, A ring-shaped peripheral edge bottom wall 17 extending in the radial direction from the middle stage of the outer circumference of the cylindrical wall 14 with a gap α to be described later is interposed therebetween.

As shown in FIG. 2, on the outer periphery of the cylindrical wall 14, two wide external teeth 18 forming the first engaging portion are formed at positions of 0° and 180° with respect to the axis.
The wide external tooth 18 has a first engagement surface 18a formed substantially radially to engage with a second engagement portion of a screw cap C described later, and an outer circumference of the cylindrical wall 14 formed on the opposite side in the circumferential direction thereof. It has a first non-engagement surface 18b inclined from the surface in the screwing direction, and a lightening portion 18c formed in an arc shape along the cylindrical wall 14. As shown in FIG.

In this embodiment, the first engaging portion is embodied as a wide external tooth 18 formed on the outer periphery of the cylindrical wall 14 of the transition plug body 12 , but the first engaging portion is the transition plug body 12 . As long as it has projections and depressions that engage with the second engaging portion of the screw cap C in the circumferential direction of the screw cap C, the number and structure thereof are not limited.

The peripheral bottom wall 17 consists of a ring-shaped annular wall 19 extending radially from the middle stage of the outer circumference of the cylindrical wall 14 and hanging down from the outer edge of the annular wall 19 to the same height as the lower surface of the central bottom wall 16 . A diameter-enlarged tubular portion 20, a first engagement protrusion 21 constituting a first engagement portion provided around the outer periphery of the diameter-enlarged tubular portion 20, and outwardly from the outer peripheral lower portion of the diameter-enlarged tubular portion 20. It is provided with a thin weakened portion 11 and a flange portion 22 that extends continuously.

Further, the lower surface of the transition plug body 12 is formed with a ring-shaped gap α surrounded by the lower outer peripheral surface of the tubular wall 14, the lower surface of the annular wall 19, and the inner peripheral surface of the enlarged diameter tubular portion 20. , gap ribs 23 project from the outer peripheral surface of the cylindrical wall 14 in the radial direction in the gap α at a plurality of positions (eight positions in the embodiment). The gap rib 23 of the present embodiment is a vertical rib, but since it is sufficient to reduce the volume of the gap α, the position and shape of the rib are not limited as long as they are within the gap α.

As shown in FIGS. 1 and 2, the inner plug B has an outer concave groove 24 and an inner Two concave grooves 25 are formed facing each other over a predetermined angular range.
As shown in FIGS. 2(a) and 3, to explain the predetermined angle range, the extension angle of the first engagement surface 18a of the wide external tooth 18 of the transition plug body 12 is assumed to be 0°, and the angle of 0° is also the fracture start position of the thin weakened portion 11. Assuming that the angle from the fracture start position to the screwing direction of the screw cap C is θ, the outer groove 24 and the inner groove 25 have an angle θ of 30° to 60°. ° range. By providing the outer groove 24 and the inner groove 25 in this range, the stress applied to the thin weakened portion 11 is not increased, and the opening torque can be reduced. Note that the outer groove 24 and the inner groove 25 may not be provided.

The threaded wall portion 8 extends vertically from the outer peripheral edge of the ceiling wall 9 which is connected to the lower portion of the pouring tube 10 at the inner peripheral edge thereof, and the outer peripheral surface is provided with a male thread 26 constituting the first threaded portion.
As shown in FIG. 2, the male screw 26 is not vertically symmetrical in cross section like a normal screw thread, but has an inclined upper surface 26a formed with a steeply inclined upper surface and a flat lower surface 26b formed with a flat lower surface. As shown in FIG. 2(a), the male thread 26 is formed of a double-start thread starting at 180° intervals at the upper end.
In this embodiment, the male screw 26 has two threads, but it can have three or more threads depending on the height of the threaded wall portion 8 .

A plurality of (three in this embodiment) reinforcing ribs 27 extending in the axial direction are provided on the inner peripheral surface of the threaded wall portion 8 so that the upper portion thereof is connected to the ceiling wall 9 .
As shown in FIG. 2, a stepped portion 28 recessed toward the outer periphery is provided on the peripheral edge portion of the top wall 9, and two sound producing projections 29 are provided on the inner peripheral side of the stepped portion 28 at intervals of 180°. are arranged.

The mounting portion 4 is formed with an outer cylinder 5, an inner cylinder 6, and an upper wall 7 to form a fitting groove into which the mouth portion 1 of the container body A is fitted. A locking reduced-diameter portion 30 that engages with the ridge 2 to prevent the mouth portion 1 from coming off is provided.
As shown in FIG. 2, the upper surface of the upper wall 7 is provided with stoppers 31 at two locations in the circumferential direction.

A notch recess 32 is formed in the outer cylinder 5 in the radial direction from the outer peripheral surface in the circumferential direction, and below the notch recess 32, the inner plug B can be separated from the container main body A and separately discarded. A mechanism F is provided.
As shown in FIGS. 2 and 3, the sorting mechanism F is provided with a gripping portion 34 via a slit 33 formed in the axial direction over a predetermined arc range on the outer peripheral surface of the lower portion of the outer cylinder 5. The gripping portion 34 is It can be separated from the outer cylinder 5 by a thin vertical cut portion 35 and can be deployed outward.

As shown in FIG. 2(b), a hook recess 36 for hooking by inserting a fingertip is formed in the right direction from the vertical cut portion 35 of the grip portion 34. As shown in FIG.
The slit 33 extends from the vertical cut portion 35 to the starting end portion 33a in the direction opposite to the grip portion 34, and the grip portion 34 is integrated with the outer cylinder 5 at the other end portion 33b.
In this embodiment, the slit 33 is formed over an arc range of about 120°, and the slit 33 extends vertically from the starting end 33a to the intermediate portion 33c adjacent to the hook recess 36, A portion from the intermediate portion 33c to the terminal portion 33b is thinly connected so as to be easily broken.

The lower portion of the outer cylinder 5 including the locking reduced diameter portion 30 adjacent to the terminal end portion 33b of the slit 33 is notched in the radial direction, and a breakable thin-walled start breaking is provided between the outer cylinder 5 and the grip portion 34. A portion 37 is formed, and a slit 49 extending between thick connecting portions 39 to be described later is formed on the extension of the end portion 33b of the slit 33 .
In the notch recess 32 of the outer cylinder 5, a thin circumferential cutting part 38 that extends in the rear direction from the terminal end 33b of the slit 33 and can be broken on the inner peripheral side of the outer cylinder 5 between the vicinity of the starting end 33a. A thick connection portion 39 is formed between the end portion of the circumferentially cut portion 38 and the terminal end portion 33b, where most of the portion is opposed to the grip portion 34. As shown in FIG.

As shown in FIGS. 1 and 4, the screw cap C has a disk-shaped top wall 40 and an outer peripheral wall 41 extending vertically from the outer peripheral edge of the top wall 40. The inner surface of the top wall 40 has: A sealed envelope portion 43 and a threaded tube portion 44 are vertically provided integrally with the top wall 40 in order from the inside, and a sound producing member 45 is concentrically arranged 180 degrees between the sealed envelope portion 43 and the threaded tube portion 44 . It is arranged in two places at an interval of °.

The airtight envelope portion 43 includes a seal portion 50 whose outer periphery contacts the inner peripheral surface of the pouring tube 10 to seal the spout when the lid is closed, and a transition plug extending radially from the inner peripheral surface of the airtight envelope portion 43 . It has narrow internal teeth 51 forming a second engaging portion that engages with the wide external teeth 18 forming the first engaging portion of the body 12 , and the narrow internal teeth 51 are as many as the wide external teeth 18 . It is provided at two locations in the circumferential direction.
The narrow inner teeth 51 are substantially radial second teeth that engage with the first engaging surfaces 18a of the wide outer teeth 18 of the transition plug body 12 when the screw cap C is rotated in the opening direction during unsealing. It has an engagement surface 51a and a second non-engagement surface 51b which is formed on the opposite side in the circumferential direction and which is inclined in the direction of disengagement from the inner peripheral surface of the airtight envelope portion 43. As shown in FIG.

In this embodiment, the second engaging portion is embodied as a narrow inner tooth 51 radially extending from the inner peripheral surface of the sealed envelope portion 43 . However, as long as it is provided on the screw cap C (for example, vertically provided from the top wall 40) and has unevenness that engages with the first engaging portion of the transition plug body 12, it is the same as the first engaging portion. In addition, the number and structure are not limited.

Further, the sealed envelope portion 43 has an annular second engaging projection 48 that constitutes a second engaging portion formed on the inner circumference of the distal end thereof, and climbs over the first engaging projection 21 formed on the transfer plug body 12 . It extends to a point where it is closely fitted to the outer peripheral surface of the diameter-enlarged tubular portion 20 .

The threaded cylindrical portion 44 is provided with a female thread 55 that constitutes a second threaded portion that is screwed onto the male thread 26 of the inner plug B on the inner periphery. As shown in FIG. 4B, the cross section is not vertically symmetrical, and is composed of a flat upper surface 55a with a flat upper surface and an inclined lower surface 55b with a steeply inclined lower surface. As shown, the lower end is formed with double-start threads beginning at 180° intervals.
In addition, as described above, the female thread 55 can be a multi-threaded thread having three or more threads corresponding to the male thread 26 .

Wedge-shaped recesses 56 that engage with the stopper 31 are formed at two locations in the circumferential direction on the lower end surface of the threaded cylinder portion 44 .
Although the stopper 31 and the wedge-shaped concave portion 56 are provided at two locations in the circumferential direction in this embodiment, the stopper 31 and the wedge-shaped recessed portion 56 are not limited to this and can be provided at a plurality of appropriate locations.

The sound producing member 45 is composed of a rigid plate-like base portion 57 extending from the lower surface of the top wall 40, and a rod-like vibrating piece 58 extending from the base portion 57 and formed to be elastically deformable.
In the sound producing member 45, the tip of the vibrating piece 58 abuts the sound producing protrusion 29 of the inner plug B just before the tightening of the screw cap C is completed. At the same time, when the vibrating bar 58 climbs over the sound producing protrusion 29 and attempts to restore itself, it is set to vibrate and generate a sound.
In this embodiment, the base portion 57 is arranged at two locations at 180° intervals on concentric circles, but the base portion 57 may be continuous in a ring shape.

Next, the mode of use and effects of this embodiment will be described.
As shown in FIG. 2, the transition plug cap of this embodiment is formed by injecting resin from a gate G provided at the tip of the columnar projection 15 when molding the inner plug B. As shown in FIG.
In order to attach the inner plug B to the container main body A, the screw cap C is attached from the top of the inner plug B, the inner plug B and the screw cap C are set, and then the attachment portion 4 of the inner plug B is attached to the mouth portion 1. and plug it.

When the screw cap C is pressed from the top of the inner plug B and set, the positions of the inner plug B and the screw cap C in the circumferential direction may be temporarily matched by a mark (not shown) or the like, and placed. In the case of this embodiment, if the screw cap C is placed so as to align with the axial center of the inner plug B without preliminary positioning, the inner plug B and the screw cap C are not provisionally positioned. In addition, the lower surface of the narrow inner tooth 51 of the airtight envelope portion 43 of the screw cap C contacts the upper surface of the wide outer tooth 18 of the transition plug body 12, and there is a high possibility that it will not be fitted between the wide outer teeth 18. In this case, , the female thread 55 of the screw cap C does not come into contact with the male thread 26 of the inner plug B. As shown in FIG.

Thereafter, by rotating the screw cap C by a maximum of 180° in either the left or right direction without applying a load to the screw cap C, the narrow inner teeth 51 of the airtight envelope portion 43 are moved to the two wide outer teeth. 18, the second engaging surface 51a of the narrow internal tooth 51 faces the first engaging surface 18a of the wide external tooth 18, and the second non-engaging surface 18a of the narrow internal tooth 51 is disengaged. The two narrow internal teeth 51 can be fitted between the two wide external teeth 18 so that the mating surface 51b and the first non-engagement surface 18b of the wide external teeth 18 face each other.

From this state, when the screw cap C is pushed into the inner plug B, the female screw 55 of the screw cap C climbs over the male screw 26 while the inclined lower surface 55b is in sliding contact with the inclined upper surface 26a of the male screw 26, and the screw cylinder portion of the screw cap C 44 is fitted to the threaded wall portion 8 of the inner plug B. As shown in FIG.
At this time, the second engaging projection 48 of the airtight envelope portion 43 climbs over the first engaging projection 21 formed on the transition plug body 12 of the inner plug B and is fitted to the outer peripheral surface of the enlarged diameter tubular portion 20. will come to
At the same time, the wedge-shaped concave portion 56 at the bottom of the threaded cylinder portion 44 is fitted into the stopper 31 of the upper wall 7 of the inner plug B, thereby completing the screwing of both screws.

The transfer stopper cap assembled in the set state is stoppered by applying the mounting portion 4 of the inner stopper B to the mouth portion 1 of the container body A filled with the content, and is used.
As described above, the transition plug cap of this embodiment can be attached to the internal plug B by punching the screw cap C when the screw cap C is set to the internal plug B. The setting of the screw cap C and the inner plug B can be completed with one touch without the need for a ratchet mechanism, and the tip of the airtight envelope portion 43 can be extended more than before to form the second engaging protrusion 48. , the screw cap C can be stably guided with respect to the transition plug body 12, so that the setting workability of the screw cap C and the inner plug B can be improved.
In this embodiment, a ratchet mechanism is not used, but a structure in which the screw cap C is screwed onto the inner plug B using a ratchet mechanism like the conventional transfer plug cap may be employed.

Next, in order to use the container fitted with the transfer stopper cap of this embodiment, the screw cap C is rotated with respect to the inner stopper B in the opening direction.
When the screw cap C is rotated, the narrow inner teeth 51 of the airtight envelope portion 43 are rotated, and the second engaging surfaces 51a thereof come into contact with the first engaging surfaces 18a of the wide outer teeth 18 of the transfer plug body 12. Upon contact, the turning force of the screw cap C is applied to the transition plug body 12 via the internal and external teeth.

After that, as the rotation progresses, the tip of the vibrating bar 58 of the sound producing member 45 of the screw cap C comes into contact with the sound producing protrusion 29 of the top wall 9 of the inner plug B, and as the rotating further progresses, the vibrating bar 58 advances while bending and deforming, the tip of the vibrating piece 58 rides over the sound output projection 29, the bending-deformed vibrating piece 58 restores and vibrates, and a sound is emitted.

At this time, since the second engagement protrusion 48 of the airtight envelope portion 43 is tightly fitted to the outer peripheral surface of the enlarged diameter cylindrical portion 20 of the transition plug body 12, the transition plug is disengaged as the screw cap C rotates. A force that lifts the body 12 upward can be generated on the entire periphery of the diameter-enlarged tubular portion 20 .
As the rotation of the screw cap C progresses, the weakened thin portion 11 finally breaks due to the turning force and lifting force applied to the transition plug body 12, and the pouring port is opened in the pouring tube 10. The separated transition plug body 12 is pulled up by the second engaging projection 48 of the airtight envelope portion 43 that engages the first engaging projection 21 of the peripheral bottom wall 17, and rises together with the screw cap C. As shown in FIG.

Further, when the female thread 55 is unscrewed from the male thread 26 and the screw cap C is separated from the inner plug B, the inside of the container body A is discharged from the pouring port of the pouring cylinder 10 from which the transition plug body 12 has been removed together with the screw cap C. The contents can be poured out.

When opening the screw cap C from the inner plug B, the transition stopper body 12 that is transitioned to the screw cap C does not have a large gap where the entire back surface is recessed, unlike the transition stopper cap described in the prior art document. Only the ring-shaped gap α surrounded by the cylindrical wall 14, the annular wall 19, and the diameter-enlarged cylindrical portion 20 is formed on the rear surface of the plug body 12, so that the contents are less likely to accumulate on the rear surface of the transfer plug body 12. ing.

Furthermore, in this embodiment, the transition plug body 12 has a plurality of gap ribs 23 protruding radially from the outer circumference of the cylindrical wall 14 in the gap α, thereby reducing the volume of the gap α. This makes it more difficult for the contents to accumulate on the rear surface of the transfer plug body 12 .
Therefore, when the screw cap C is opened, it is possible to prevent the contents from dripping from the rear surface of the transfer plug body 12 that is transferred to the screw cap C.

When the screw cap C is screwed onto the inner plug B again after pouring out the contents, the seal portion 50 of the airtight envelope portion 43 of the screw cap C is brought into close contact with the inner circumference of the pouring cylinder 10 to seal the container. The inside can be sealed.
Further, when the screwing of the two screws is completed, the tip of the vibrating piece 58 of the sound producing member 45 contacts the sound producing protrusion 29 again and vibrates to produce a sound. A person can intuitively know that the cap has been closed.

The inner stopper B of the transfer stopper cap of this embodiment can be separated from the container main body A by a simple operation and separated and discarded when the container is discarded after use.
First, when the grip portion 34 is pulled forward by hooking a finger on the hook recess 36 near the vertical cut portion 35 shown in FIG.
When the gripping portion 34 is further pulled while gripping the gripping portion 34 with fingers, the thin portion from the intermediate portion 33c to the terminal portion 33b of the slit 33 is easily broken, and then adjacent to the terminal portion 33b of the slit 33. The thin-walled start breaking portion 37 provided at the end of the cutting edge is broken, and the break progresses to the circumferential cutting portion 38 .

When the circumferential cut portion 38 breaks, the engagement of the locking reduced diameter portion 30 with the locking projection 2 is released. When the restraint on the mouth portion 1 by the portion 30 is released and the grip portion 34 is pulled up, the inner plug B can be detached from the container body A and separated and discarded.

In this embodiment, the inner plug B and the screw cap C are provided with a stopper 31 and a wedge-shaped recess 56 in order to stop the rotation after the lid is closed. The user can intuitively know that the cap has been closed. A sound output mechanism may not be provided.

The transition stopper cap of the present invention is attached to the mouth of a container body and includes an inner stopper having a removable transition stopper body, and a screw cap detachably attached by being screwed to the inner stopper. In the above, after the screw cap of the transfer plug cap is turned in the lid opening direction and unsealed, it becomes difficult for the content to accumulate on the back surface of the transfer plug that is transferred to the screw cap, and the content is removed from the back surface of the transfer plug when the lid is opened. Since it can suppress dripping, it is suitable as a transition plug cap that can be widely used for containers of foods, beverages, seasonings, and the like.

A Container body B Inner stopper C Screw cap F Sorting mechanism G Gate α Gap θ Angle 1 Mouth part 2 Locking rib 4 Mounting part 5 Outer cylinder 6 Inner cylinder 7 Upper wall 8 Threaded wall part 9 Top wall 10 Dispensing cylinder 11 Thin weakened portion 12 Transition plug body 13 Bottom wall 14 Cylindrical wall 15 Columnar protrusion 16 Central bottom wall 17 Peripheral bottom wall 18 Wide external tooth (first engaging portion)
18a First engaging surface 18b First non-engaging surface 18c Lightening portion 19 Annular wall 20 Expanded cylindrical portion 21 First engaging protrusion (first engaging portion)
22 Flange 23 Gap rib 24 Outer groove 25 Inner groove 26 Male thread (first thread)
26a Inclined upper surface 26b Flat lower surface 27 Reinforcement rib 28 Stepped portion 29 Sound producing projection 30 Locking reduced diameter portion 31 Stopper 32 Notch concave portion 33, 49 Slit 33a Starting end 33b Ending end 33c Intermediate portion 34 Grip portion 35 Vertical cut portion 36 Hooking concave portion 37 Thin starting portion 38 Circumferential cutting portion 39 Thick connecting portion 40 Top wall 41 Peripheral wall 43 Airtight envelope portion 44 Screw cylinder portion 45 Sound producing member 48 Second engaging protrusion (second engaging portion)
50 seal portion 51 narrow internal tooth (second engaging portion)
51a Second engaging surface 51b Second non-engaging surface 55 Internal thread (second threaded portion)
55a Flat upper surface 55b Inclined lower surface 56 Wedge-shaped concave portion 57 Base 58 Vibration piece

Claims (5)

A transfer stopper cap comprising an inner stopper attached to the mouth of a container body and a screw cap detachably attached by being screwed to the inner stopper,
The intermediate plug includes a pouring tube and a transition plug body connected to the inner peripheral surface of the pouring tube via a thin weakened portion and having a first engaging portion formed in the circumferential direction,
The screw cap has a top wall, an airtight envelope portion depending from the top wall and sealing the dispensing tube around its outer periphery when the lid is closed, and a second engaging portion engageable with the first engaging portion of the transition plug. with
The transition plug body includes a bottom wall that blocks the pouring port inward from the thin weakened portion, a cylindrical wall that is erected from the bottom wall, and a ring-shaped gap that is recessed on the outer peripheral side of the lower portion of the cylindrical wall. A transition plug cap, comprising: The bottom wall of the transition plug body includes a central bottom wall that closes the inner peripheral side of the lower end of the cylindrical wall, and a ring-shaped peripheral bottom wall that extends radially from the outer periphery of the cylindrical wall with a gap interposed therebetween. The transition stopper cap according to claim 1, characterized in that: The peripheral bottom wall includes a ring-shaped annular wall extending in the radial direction from the middle stage of the outer periphery of the tubular wall, an enlarged diameter tubular portion hanging down from the outer edge of the annular wall, and an outer peripheral lower portion of the enlarged diameter tubular portion. 3. The transition plug cap according to claim 2, further comprising an outwardly extending flange portion connected to the thinned weakened portion. 4. The transfer plug cap according to claim 2, wherein the transfer plug body has a columnar protrusion erected from the center of the bottom wall and provided with a gate at its tip. The transition plug according to any one of claims 1 to 4, wherein the transition plug body has a plurality of gap ribs projecting radially from the outer peripheral surface of the cylindrical wall in which the gap is formed. cap.

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