JP7154981B2 - corkscrew cap - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cap that can be opened by rotating a screw cap in a screwing direction.

As a food container for storing contents such as dressing, the inside of the container body is sealed by an inner plug having a removable plug body until unsealing, and the screw cap attached to the inner plug is screwed in a screwing direction. 2. Description of the Related Art Unplugging caps capable of opening a plug body of an inner plug by turning have been conventionally known (see, for example, Patent Document 1).

JP 2015-163525 A

However, the unplugging cap described in Patent Document 1 can be easily opened simply by turning the screw cap in the screwing-out direction in the same way as a normal lid-opening operation. When the screw cap is screwed between the plug body connected to the surface via the thin weakened portion and the cutting cylindrical portion of the screw cap and tightened, the cap is allowed to rotate and is unscrewed to open. It is necessary to provide a ratchet mechanism that engages only when the cap is opened, which complicates the structure of the unplugging mechanism.

An object of the present invention is to solve the above-mentioned problems. An object of the present invention is to provide a stopper cap that is attached to a container body and includes an inner stopper having a removable stopper body and a screw cap that is screwed and attached to the inner stopper, There is no need to screw and tighten when attaching the screw cap to the inner plug, and after attaching the screw cap to the inner plug, the screw cap can be easily opened by simply turning the screw cap in the direction of unscrewing. To provide an uncorking cap capable of

In order to solve the above problems, the present invention includes, as a stopper cap, an inner stopper attached to the mouth of a container body, and a screw cap attached by screwing to the inner stopper. a pipe for guiding objects; and a tubular wall connected to the inner peripheral surface of the pipe through a thin weakened portion, provided with a first engagement projection on the inner periphery, and provided with external teeth on the outer periphery. an upright stopper body, a fitting tubular portion into which the mouth of the container body is fitted, a threaded wall portion erected from the fitting tubular portion and having the first multi-threaded threaded portion screwed thereon, and a threaded wall portion and a top wall in which a pouring tube is formed continuously from the upper end of the screw cap. A screw cap hangs down from the center of the top wall. An engaging portion formed with two engaging projections, a cutting tube portion hanging down from the outside of the engaging portion and provided with internal teeth on the inner periphery that can be engaged with the external teeth, and a cutting tube portion extending from the outer peripheral edge of the top wall. and a threaded tubular portion hanging from the outside of the cutting tubular portion of the top wall and having a second multi -threaded thread portion that can be screwed with the first multi-threaded thread portion. The multi-start screw part and the second multi-start screw part adopt a configuration characterized in that they can be capped when the screw cap is attached to the inner plug.

As an embodiment of the extraction cap, the stopper has outer teeth that are lower than the height of the cylindrical wall, and the cutting tube has a sealing envelope whose outer periphery is in close contact with the inner peripheral surface of the pouring tube, A configuration is adopted in which the inner teeth are formed lower than the height of the sealed envelope, and the outer teeth are formed substantially in the radial direction, and the first engaging surfaces on both sides mesh with the inner teeth. and a guide engagement surface formed on an upper surface orthogonal to the first engagement surface, the internal teeth being formed substantially radially and engaging with the first engagement surfaces of the external teeth. An engagement surface and a tip engagement surface formed on a lower surface orthogonal to the second engagement surface and abutting against the guide engagement surface of the external teeth during setting are adopted. , wide external teeth with a wide arc angle and narrow external teeth with a narrower arc angle than the wide external teeth, and the internal teeth have wide internal teeth with a wide arc angle and narrower arc angles than the wide internal teeth. A configuration characterized by narrow internal teeth is employed.

As a specific embodiment of the plug cap, the screw thread of the first multi-start screw portion has an inclined upper surface formed with a steep upper surface and a flat lower surface formed with a flat lower surface. The screw thread of the threaded portion adopts a configuration characterized by having a flat upper surface formed flat and an inclined lower surface formed with a steeply inclined lower surface .

In the unplug cap of the present invention, by adopting the above-described configuration, when the screw cap is set to the inner plug, the screw cap having the threaded cylindrical portion to which the second multi-threaded portion is screwed is pushed into the first screw cap. Since it can be attached to an inner plug that has a threaded wall with a multi-threaded portion, it does not require a ratchet mechanism like a conventional unplug cap, and completes the set of the screw cap and the inner plug with one touch. In addition, the screw cap can be easily opened by rotating the screw cap in the screw release direction in the same manner as a normal lid opening operation without performing difficult operations.

FIG. 2 is a view showing a state after the cap and the inner plug are set in the unplugging cap of Example 1, where (a) is a front cross-sectional view and (b) is a cross-sectional view taken along line XX of (a). . 1(a) is an enlarged view of a main part of FIG. 1(a), and (b) is a screw developed view corresponding to FIG. 1. FIG. is. It is a figure which shows the inner plug in Example 1 of a plug removal cap, (a) is a top view, (b) is a front view. FIG. 2A is a front cross-sectional view, and FIG. 4B is a cross-sectional view taken along line YY in FIG. It is a figure which shows the screw cap in Example 1 of a plug cap, (a) is front sectional drawing, (b) is a bottom view. FIG. 2 is a screw development view showing the female thread of the screw cap and the male thread of the inner stopper in the first embodiment of the plug cap. It is a figure which shows the state just before the set of the screw cap and inner plug in Example 1 of a plug cap, (a) is front sectional drawing, (b) is a screw developed view corresponding to (a). FIG. 10 is a view showing the state after the cap and the inner plug are set in Example 2 of the unplugging cap, (a) is a cross-sectional view taken along line XX of FIG. 1 (a), and (b) is (a). 1 is an enlarged view of a main part of FIG.

Next, the unplug cap of the present invention will be described with reference to the drawings showing the embodiments.

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 set by plugging the inner plug B. As shown in FIG.

As shown in FIG. 1, the mouth portion 1 of the container main body A is provided with a locking projection 2 that is fitted to the inner plug B to prevent it from coming off.
As shown in FIGS. 2 to 4, 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 positioned on the top surface side of the mouth portion 1. A fitting cylindrical portion 4 forming an annular groove to be fitted into, a threaded wall portion 8 erected continuously from an upper wall 7, and a note continuous from the upper end of the threaded wall portion 8 via a ceiling wall 9. It is composed of a discharge cylinder 10.

The pouring tube 10 forms a pouring port for pouring out the contents contained in the container main body A, and has a cylindrical base 11 and a lip part 12 that is enlarged in diameter and curved outward from the upper part of the base 11 . have
A plug body 15 is integrally connected to the inner peripheral surface of the base portion 11 of the dispensing tube 10 via a thin weakened portion 14 formed over the entire circumference.
The stopper 15 has a cylindrical cylindrical wall 16 erected on its upper portion, and a bottom wall 17 on its lower portion together with a thin weakened portion 14 to seal the spout.

The cylindrical wall 16 has six external teeth 18 protruding from its outer periphery in the circumferential direction, and a first engagement projection 19 annularly protrudes from the upper inner periphery of the cylindrical wall 16 .
The external teeth 18 are formed substantially in the radial direction, and have first engagement surfaces 20 on both side surfaces that mesh with internal teeth 51 of a screw cap C, which will be described later. It has a mating surface 21, and its plan view shape is substantially fan-shaped.
In this embodiment, the external teeth 18 are provided at six locations in the circumferential direction, but the number is not limited to six, and they can be provided at a plurality of appropriate locations according to the shape of the plug body 15 or the like.

The threaded wall portion 8 is vertically provided from the outer peripheral edge of the top wall 9 which is connected to the lower portion of the pouring tube 10 at the inner peripheral edge, and the outer peripheral surface is provided with a male thread 23 constituting the first multi-threaded thread portion. .
As shown in FIG. 2(a), the male screw 23 is not vertically symmetrical in cross section like a normal screw thread, but has an inclined upper surface 23a formed with a steep upper surface and a flat lower surface. The male thread 23, as shown in FIG. 6, is formed with a double thread starting at 180° intervals at the upper end.
In this embodiment, the male screw 23 has two threads, but it can have three or more threads depending on the height of the threaded wall portion 8 .
A plurality of reinforcing ribs 24 are provided on the inner peripheral surface of the threaded wall portion 8 so that the upper portions thereof are connected to the ceiling wall 9 and extend in the axial direction.

A stepped portion 25 recessed toward the outer periphery is provided on the peripheral portion of the top wall 9, and two sound producing protrusions 26 are provided on the inner peripheral side of the stepped portion 25 at intervals of 180°.

The upper wall 7 of the fitting cylinder portion 4 is connected to the lower portion of the threaded wall portion 8 at the inner peripheral edge thereof, and the outer cylinder 5 and the inner cylinder 6 are provided vertically from the lower portion of the upper wall 7 .
Between the outer cylinder 5 and the inner cylinder 6 is formed a fitting groove into which the mouth portion 1 of the container body A is fitted. 1 is provided.
The upper surface of the upper wall 7 is provided with stoppers 28 at two locations in the circumferential direction. formed.

A notch recess 29 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 29, the inner plug B can be separated from the container main body A and separately discarded. A mechanism 30 is provided.
As shown in FIGS. 3 and 4, the sorting mechanism 30 is provided with a grasping portion 32 via a through slit 31 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 grasping portion 32 is It can be separated from the outer cylinder 5 by a thin vertical cut portion 33 and can be deployed outward.

A hook recess 34 for hooking by inserting a fingertip is formed in the right direction from the vertical cut portion 33 of the grip portion 32 .
As shown in FIG. 4 , the through slit 31 extends from the vertical cut portion 33 to the starting end portion 31a in the opposite direction (left direction) to the gripping portion 32, and the gripping portion 32 extends to the outer cylinder at the terminal end portion 31b, which is the other end. It is united with 5.
In this embodiment, the through slit 31 is formed over an arc range of approximately 120°, and the hatched portion of the through slit 31 from the intermediate portion 31c adjacent to the hook recess 34 to the terminal end 31b is It is connected with a thin wall so that it can be easily broken.

A lower portion of the outer cylinder 5 adjacent to the terminal end portion 31b of the through slit 31, including the locking reduced diameter portion 27, is notched in the radial direction, and a breakable thin-walled beginning is formed between the outer cylinder 5 and the grip portion 32. A break 35 is formed.
In the notch recess 29 of the outer cylinder 5, a thin circumferential cutting part 36 extending in the rear direction from the terminal end 31b of the through slit 31 to the vicinity of the starting end 31a of the outer cylinder 5 can be broken on the inner peripheral side of the outer cylinder 5. A thick connecting portion 37 is formed between the end portion of the circumferentially cut portion 36 and the terminal end portion 31b for the majority thereof so as to face the grip portion 32. As shown in FIG.

As shown in FIGS. 1 and 5, the screw cap C comprises a disk-shaped top wall 40 provided on the top plate portion and an outer peripheral wall 41 extending vertically from the outer peripheral edge of the top wall 40. On the inner surface of 40, an engaging portion 42 is vertically provided near the center, and a cutting tube portion 43 and a threaded tube portion 44 are vertically provided integrally with the top wall 40 in order from the engaging portion 42 to the outer side of a concentric circle. Further, between the cutting tube portion 43 and the threaded tube portion 44, two sound producing members 45 are concentrically arranged at intervals of 180°.

An annular second engaging projection 48 is formed on the outer periphery of the distal end of the engaging portion 42 so as to ride over the first engaging projection 19 of the inner plug B and closely fit to the inner peripheral surface of the cylindrical wall 16 . ing.

The cutting cylinder part 43 has a sealed envelope 50 whose outer periphery is in close contact with the inner peripheral surface of the pouring tube 10 to seal the spout when the lid is closed, and internal teeth 51 which mesh with the outer teeth 18 on the inner periphery of the sealed envelope 50. , and the internal teeth 51 are provided at six locations in the circumferential direction, which is the same number as the external teeth 18 .

The internal teeth 51 are formed substantially in the radial direction, and have second engagement surfaces 52 on both side surfaces that mesh with the first engagement surfaces 20 of the external teeth 18 of the plug body 15 and a lower surface perpendicular to the second engagement surfaces 52 . and a tip engaging surface 53 which is formed and abuts against the guiding engaging surface 21 of the external tooth 18 when set.

The threaded cylinder portion 44 is provided with a female thread 55 that constitutes a second multi-threaded portion that is screwed to the male thread 23 of the inner plug B on the inner periphery. Like a thread, the cross section is not vertically symmetrical, and is composed of a flat upper surface 55a with a flat upper surface and a slanted lower surface 55b with a steeply inclined lower surface. As such, the lower end is formed with double-start threads starting at 180° intervals.
The female thread 55 can be a multi-threaded thread having three or more threads corresponding to the male thread 23, as described above.

Wedge-shaped recesses 56 that engage with the stoppers 28 are formed at two locations in the circumferential direction on the lower end surface of the threaded cylinder portion 44 .
The wedge-shaped concave portion 56 is formed with a second contact surface 56a substantially perpendicular to the screwing-out direction, and a second inclined surface 56b is formed in the screwing-in direction. It has a shape corresponding to the first inclined surface 28b.
The screw cap C is completely tightened when the lower end surface of the threaded barrel portion 44 comes into contact with the upper wall 7 and the second contact surface 56a comes into contact with the first contact surface 28a.
Although the stopper 28 and the wedge-shaped concave portion 56 are provided at two locations in the circumferential direction in this embodiment, the stoppers 28 and the wedge-shaped recessed portions 56 are not limited to this and can be provided at a plurality of appropriate locations.

The sound producing member 45 includes a rigid rod-shaped base portion 57 that extends vertically from the bottom surface of the top wall 40, and a vibration member that vertically extends from the bottom end surface of the base portion 57 and has a thin thickness that can be elastically deformed in the circumferential direction. It consists of strips 58.
In the sound producing member 45, the tip of the vibrating piece 58 abuts the sound producing protrusion 26 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 26 and attempts to restore itself, it is set to vibrate and generate a sound.
In this embodiment, the base portion 57 is arranged in two concentric circles at an interval of 180°, 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.
First, in order to attach the unplugging cap of this embodiment to the container body A, the screw cap C is plugged from the top of the inner plug B, the inner plug B and the screw cap C are set, and then the inner plug is attached to the mouth portion 1. The fitting cylinder part 4 of B is put on and plugged.

When screwing the screw cap C from the upper part of the inner plug B and setting it, the positions of the inner plug B and the screw cap C are provisionally aligned in the circumferential direction using a mark (not shown) or the like, so that the screw cap C is shown in FIG. 7(a). 2, when the screw cap C is placed so as to be aligned with the axis of the inner plug B, the inner teeth of the cutting tube portion 43 of the screw cap C are not accurately aligned with the inner plug B and the screw cap C. 51 is highly likely that the tip engaging surface 53 abuts against the guide engaging surface 21 of the external teeth 18 of the plug body 15 and does not fit between the external teeth 18. is in a state of not coming into contact with the male screw 23 of the inner plug B.
It is preferable that the front end engaging surface 53 and the guide engaging surface 21 each have an R-shaped or slanted peripheral edge portion, and a flat surface shape for the other portions.
When the screw cap C is attached to the inner plug B, the portion that comes into contact with the inner plug B when the screw cap C is placed on the inner plug B may be provided with a flat surface shape.

After that, when the screw cap C is slightly rotated in the left-right direction without applying a load to the screw cap C, the internal teeth 51 of the cutting tube portion 43 reach the position shown in FIG. 51 is fitted between the external teeth 18 and is in a state where it can mesh with the external teeth 18 of the plug body 15 .
At this time, the positional relationship between the male thread 23 of the inner plug B and the female thread 55 of the screw cap C is in phase with each other as shown in the developed view of the screw in FIG. 7(b).

From this state, when the screw cap C is pushed into the inner plug B, the female screw 55 of the screw cap C pushes the male screw 23 while the inclined lower surface 55b is in sliding contact with the inclined upper surface 23a of the male screw 23, as shown in FIG. 2(a). The threaded cylindrical portion 44 of the screw cap C comes to fit into the threaded wall portion 8 of the inner plug B. As shown in FIG.
At the same time, as shown in FIG. 2(b), the wedge-shaped recess 56 in the lower portion of the threaded tube portion 44 is fitted into the stopper 28 of the upper wall 7 of the inner plug B, thereby causing the wedge-shaped recess 56 to make a second contact. The surface 56a comes into contact with the first contact surface 28a of the stopper 28 to complete the screwing of both screws.

The unplugging cap assembled in the set state is put into use by fitting the fitting cylindrical portion 4 of the inner plug B against the mouth portion 1 of the container body A filled with the contents.
In this way, when the screw cap C of the present embodiment is set to the inner plug B, the screw cap C can be attached to the inner plug B by tapping, so it can be used like a conventional unplug cap. The setting of the screw cap C and the inner plug B can be completed with one touch without requiring a ratchet mechanism.

Next, in order to use the container fitted with the unplugging cap of this embodiment, the screw cap C is rotated with respect to the inner plug B in the screwing and removing direction.
When the screw cap C is rotated, the internal teeth 51 of the cutting tube portion 43 are rotated so that the second engaging surfaces 52 thereof come into contact with the first engaging surfaces 20 of the external teeth 18 of the plug body 15 of the inner plug B. , and the torque of the screw cap C is applied to the plug body 15 via both teeth.
In this embodiment, the first engaging surface 20 and the second engaging surface 52 are formed flat, but the first engaging surface 20 and the second engaging surface 52 are not flat. There is no problem if the external teeth 18 and the internal teeth 51 can mesh with each other when the screw cap C is rotated.

After that, as the rotation progresses, the tip of the vibrating bar 58 of the sound producing member 45 of the screw cap C contacts the sound producing projection 26 of the top wall 9 of the inner plug B, and as the rotation further advances, the vibrating bar 58 bends. As it progresses while being deformed, the tip of the vibrating bar 58 climbs over the sound producing protrusion 26, and the bent vibrating bar 58 restores and vibrates to emit sound.

At this time, since the second engaging protrusion 48 of the engaging portion 42 is tightly fitted to the inner peripheral surface of the tubular wall 16 of the plug 15, the tubular wall 16 is reinforced from the inside to secure the screw cap. The rotational force of C is easily transmitted to the plug body 15 via the internal teeth 51 and the external teeth 18, and the rotation of both screws generates a force that lifts the plug body 15 upward.
As the rotation of the screw cap C progresses, the thin weakened portion 14 finally breaks due to the rotational force applied to the plug 15 and the lifting force, and the spout is opened in the spout tube 10 and separated from the spout tube 10 . The stopper body 15 that has been closed is pulled up by the engaging portion 42 that engages with the cylindrical wall 16 and rises together with the screw cap C. As shown in FIG.

Further, when the female screw 55 is unscrewed from the male screw 23 and the screw cap C is separated from the inner plug B, the contents in the container main body A are extracted from the opening of the pouring tube 10 from which the plug 15 has been removed together with the screw cap C. can be poured out.

After pouring out the contents, when screwing the screw cap C onto the inner plug B again, the airtight envelope 50 of the cutting tube portion 43 of the screw cap C is brought into close contact with the inner circumference of the pouring tube 10 to close the container. The inside can be sealed.
Further, when the two screws are completely screwed together, the tip of the vibrating piece 58 of the sound producing member 45 contacts the sound producing protrusion 26 and vibrates again, thereby producing a sound. can sensuously know the completion of closing the cap.

The inner stopper B of the unplugging 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 gripping portion 32 is pulled forward by hooking a finger on the hook recess 34 near the vertical cut portion 33 shown in FIGS.
When the gripping portion 32 is further pulled while gripping the gripping portion 32 with fingers, the hatched thin portion from the intermediate portion 31c to the end portion 31b of the through slit 31 is easily broken, and then the through slit 31 is opened. The thin-walled start breaking portion 35 provided adjacent to the terminal end portion 31b is broken, and the break progresses to the circumferential cutting portion 36. As shown in FIG.

When the circumferential cut portion 36 is broken, the engagement of the locking reduced-diameter portion 27 with the locking projection 27 is released. When the restraint on the mouth portion 1 by the portion 27 is released and the grip portion 32 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 28 and a wedge-shaped recess 56 in order to stop the rotation after the lid is closed. Since the user can intuitively know when the cap has been closed, the stopper 28 and the wedge-shaped recess 56 need not be provided. It is not necessary to provide a pulling-out mechanism.

Next, a second embodiment in which the configuration of the external teeth 18 of the plug body 15 and the internal teeth 51 of the cutting tube portion 43 of the first embodiment is changed will be described with reference to FIG.
Hereinafter, the same reference numerals are given to the same constituent parts as in the first embodiment, and new reference numerals are given to the changed parts in the plug 15 and the cutting tube portion 43, and the explanation will focus on the points of difference.

As shown in FIG. 8( a ), the inner plug B has a pouring tube 10 erected on the top wall 9 , and the pouring tube 10 forms a pouring port for pouring out the contents. A plug body 15 is integrally connected to the inner peripheral surface of the cylinder 10 via a thin weakened portion (not shown) formed over the entire circumference.
The stopper 15 has a cylindrical wall 16 erected on its upper portion.
Further, the peripheral edge of the top wall 9 is provided with a recessed stepped portion 25 on the outer peripheral side, and the inner peripheral side of the stepped portion 25 is provided with two sound output projections 26 at intervals of 180°. there is

As shown in detail in FIG. 8(b), on the outer circumference of the cylindrical wall 16, two wide external teeth 61 protrude at positions of 0° and 180° with respect to the axis, and narrow external teeth 61 are provided. 62 are projected at four positions at 60°, 120°, 240° and 300° with respect to the axis.
The wide external teeth 61 are formed substantially radially, and have first wide engaging surfaces 63 that engage with the narrow internal teeth 67 of the screw cap C and have a first wide engaging surface 63 with an arc angle α1 on both side surfaces, and the narrow external teeth 62 are: It has a first narrow engaging surface 64 which is generally radially formed and has a circular arc angle .alpha.2 on both side surfaces which mesh with the wide internal teeth 66 and the narrow internal teeth 67 of the screw cap C. As shown in FIG.

As shown in FIG. 8(a), the screw cap C has an engaging portion 42 vertically provided near the center on the inner surface of the top wall (not shown), and concentrically outward from the engaging portion 42 in order. , a cutting cylinder portion 43 and a threaded cylinder portion 44 are vertically provided integrally with the top wall, and further, between the cutting cylinder portion 43 and the threaded cylinder portion 44, two sound producing members 45 are concentrically arranged at intervals of 180°. is placed in

As shown in detail in FIG. 8(b), when the lid is closed, the cutting tube portion 43 includes a sealed envelope 50 whose outer periphery is in close contact with the inner peripheral surface of the pouring tube 10 to seal the spout, and an inner seal of the sealed envelope 50. Two wide internal teeth 66 protrude from the circumference at positions of 90° and 270° with respect to the axis, and narrow internal teeth 67 are provided at positions of 30°, 150°, 210°, and 30° with respect to the axis. Four projections are provided at 330° positions.
The wide inner tooth 66 is formed substantially in the radial direction, and has a second wide engaging surface 68 that engages with the first narrow engaging surface 64 of the narrow outer tooth 62 of the plug body 15 and has an arc angle β1 on both side surfaces thereof. The narrow inner teeth 67 are formed substantially in the radial direction and have second narrow engaging surfaces 69 that mesh with the wide outer teeth 61 and the narrow outer teeth 62 of the plug 15, and the two side faces form an arc angle β2. is doing.

Next, the mode of use and effects of this embodiment will be described.
When the screw cap C is plugged and set from the upper part of the inner plug B, similarly to the first embodiment, the inner plug B and the screw cap C are temporarily aligned with each other in the circumferential direction using a mark (not shown) or the like. However, in the case of this embodiment, the screw cap C is placed on the inner plug B without any preliminary positioning, and the screw is screwed in a state where no load is applied to the screw cap C. By rotating the cap C up to 90° in either direction, the wide internal teeth 66 and narrow internal teeth 67 of the screw cap C are positioned between the wide external teeth 61 and narrow external teeth 62 of the plug 15. can be inserted into the
Next, when the screw cap C is pushed into the inner plug B from this state, the screw cap C can be set on the inner plug B in the same manner as in the first embodiment.

As described above, in this embodiment, when the sound producing mechanism is provided at intervals of 180° in the unplug cap, the screw cap C can be attached to the inner plug B without providing a positioning mark or the like. Accurate alignment and setting are possible.
In this embodiment, since the male thread 23 and the female thread 55 are formed as double threads, the wide external teeth 61 and the wide internal teeth 66 are formed at two locations, respectively. In the case of a thread, the wide external teeth 61 and the wide internal teeth 66 can be formed at three or more locations, respectively.

The stopper cap of the present invention is a stopper cap that is attached to a container body and includes an inner stopper having a removable stopper body and a screw cap that is screwed and attached to the inner stopper, wherein the screw cap is first attached to the inner stopper. After attaching the screw cap to the inner plug, it can be easily opened by simply turning the screw cap in the direction of the screw. It can be widely used as a container for foods, drinks, seasonings, etc., and is particularly suitable as a container that can be safely used even by children and the elderly.

A Container body B Inner plug C Screw cap 1 Mouth 2 Locking rib 4 Fitting cylinder 5 Outer cylinder 6 Inner cylinder 7 Upper wall 8 Threaded wall 9 Ceiling wall 10 Extraction tube 11 Base 12 Lip 14 Thin weakening Portion 15 Plug body 16 Cylindrical wall 17 Bottom wall 18 External teeth 19 First engagement protrusion 20 First engagement surface 21 Guide engagement surface 23 External thread (first multi-threaded thread portion)
23a Inclined upper surface 23b Flat lower surface 24 Reinforcement rib 25 Stepped portion 26 Sound producing projection 27 Locking reduced diameter portion 28 Stopper 28a First contact surface 28b First inclined surface 29 Notch recess 30 Sorting mechanism 31 Through slit 31a Start end 31b Terminal portion 31c Intermediate portion 32 Grip portion 33 Vertical cut portion 34 Hook recess 35 Thin starting/cutting portion 36 Circumferential cut portion 37 Thick connecting portion 40 Top wall 41 Peripheral wall 42 Engagement portion 43 Cutting cylinder portion 44 Threaded cylinder portion 45 Sound Extending member 48 Second engaging protrusion 50 Airtight envelope 51 Internal teeth 52 Second engaging surface 53 Tip engaging surface 55 Internal thread (second multi-threaded thread)
55a flat upper surface 55b inclined lower surface 56 wedge-shaped concave portion 56a second contact surface 56b second inclined surface 57 base portion 58 vibrating bar 61 wide external tooth 62 narrow external tooth 63 first wide engaging surface 64 first narrow engaging surface 66 wide internal tooth 67 narrow internal tooth 68 second wide engagement surface 69 second narrow engagement surface

Claims (5)

An inner plug attached to the mouth of the container body and a screw cap attached by screwing to the inner plug,
The inner plug is connected to the pouring tube that guides the contents and the inner peripheral surface of the pouring tube through a thin weakened portion, and has a first engaging protrusion on the inner periphery and external teeth on the outer periphery. a fitting tube into which the mouth of the container body is fitted; and a threaded wall section erected from the fitting tube and into which the first multi-threaded thread is screwed. and a top wall continuous inwardly from the upper end of the threaded wall portion and formed with a pouring cylinder ,
The screw cap has an engaging portion suspended from the center of the top wall and having a second engaging projection formed on the outer periphery thereof that can be engaged with the first engaging projection; A cutting tube portion provided with internal teeth that can be meshed with the external teeth on the periphery, an outer peripheral wall vertically provided from the outer peripheral edge of the top wall, and a first multi-threaded portion that hangs down from the outside of the cutting tube portion of the top wall. and a threaded cylindrical portion in which a second multi-threaded thread portion that can be screwed with is screwed,
The unplugging cap is characterized in that the first multi-threaded portion and the second multi-threaded portion are capable of being plugged when the screw cap is attached to the inner plug. The plug body is formed so that the external teeth are lower than the height of the cylindrical wall,
2. The plug according to claim 1, wherein the cutting tube portion has an airtight envelope whose outer periphery is in close contact with the inner peripheral surface of the pouring tube, and the inner teeth are formed lower than the height of the airtight envelope. cap. The external teeth are formed substantially in the radial direction and have first engaging surfaces on both side surfaces that mesh with the internal teeth, and a guiding engaging surface formed on the upper surface perpendicular to the first engaging surfaces,
The internal teeth are formed substantially in a radial direction, and are formed on both side surfaces of the second engaging surfaces that mesh with the first engaging surfaces of the external teeth, and on a lower surface orthogonal to the second engaging surfaces, to guide the external teeth during setting. 3. The plug cap according to claim 1, further comprising a tip engagement surface that abuts against the engagement surface. The external teeth have wide external teeth with a wide arc angle and narrow external teeth with a narrower arc angle than the wide external teeth,
The plug cap according to any one of claims 1 to 3, wherein the internal teeth have wide internal teeth with a wide arc angle and narrow internal teeth with a narrower arc angle than the wide internal teeth. The thread of the first multi-start thread portion has an inclined upper surface formed with a steep upper surface and a flat lower surface formed with a flat lower surface,
5. The screw thread of the second multi-start screw portion has a flat upper surface with a flat upper surface and an inclined lower surface with a steeply inclined lower surface . The plug cap described in the paragraph .

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