JP5451092B2 - Plug unit, packing container with plug, and method for manufacturing the same - Google Patents

Description

  The present invention relates to a plug unit attached to a spout of a packaging container. The present invention also relates to a packaging container with a cap in which a cap unit is attached to a spout of the packaging container and a method for manufacturing the packaging container.

  Conventionally, beverage products have been sold in a state where a beverage prepared at a factory is filled in a container such as a can, a bottle or a plastic bottle. However, the content of the beverage product (beverage) has a problem that its shelf life is short because it changes with time. For this reason, beverage containers and caps have been proposed in which the content is divided into potable water and powder, and these are mixed together immediately before drinking so that deterioration of the content can be suppressed.

  For example, Patent Document 1 seals a parent cap having an outer cylinder to be inserted into a mouth portion of a bottle, a child cap having an inner cylinder to be inserted into the outer cylinder and serving as a raw material storage section, and a lower end opening of the inner cylinder. The bottom cap is configured to form a cap, and the child cap is raised with respect to the parent cap by rotating the child cap in the opening direction with respect to the outer cylinder of the parent cap, and the bottom lid is moved from the inner cylinder by the outer cylinder of the parent cap. A bottle cap is disclosed in which the raw material in the inner cylinder is dropped and released into the bottle. Patent Document 2 discloses an internal cap that has a substantially cylindrical storage portion that is open at the top and has a mechanical weak point at the bottom, and is screwed into the bottle mouth of the beverage container. The cap is constituted by an outer cap provided with a downward projecting portion that breaks the weak point portion, and the outer cap is pushed down against the inner cap at the time of drinking, and the mechanical weak point portion of the inner cap is broken by the lower projecting portion of the outer cap. A cap structure for a beverage container is disclosed in which powdered tea stored in a storage unit is dropped and mixed in drinking water. Further, Patent Document 3 discloses a lower cap member that is screwed into a bottle neck and formed with a raw material charging hole that opens into a cavity in the bottle, and a communication that is screwed into the lower cap member and opens into the raw material storage chamber and the raw material storage chamber. A bottle cap is constituted by an upper cap member having a hole and a plug for closing the raw material storage chamber from the outside, and the raw material storage chamber is closed by separating the raw material charging hole and the communication hole, A bottle cap is disclosed in which the upper cap member is rotated with respect to the lower cap member so that the raw material charging hole and the communication hole are directly opposed to each other so that the raw material in the raw material storage chamber is mixed and dissolved with the water in the bottle.

JP 2004-106888 A Japanese Patent Laid-Open No. 2005-22706 JP 2006-151212 A

  However, like a bottle cap disclosed in Patent Document 1, a bottle cap of a type in which a foreign substance such as a bottom lid for sealing an inner cylinder of a child cap falls into a container at the time of drinking is a May cause accidental ingestion of such foreign objects. Further, as in the cap structure disclosed in Patent Document 2, in order to release powder into the bottle, apart from the operation of removing the cap from the bottle, the outer cap is pushed down against the inner cap at the time of drinking and the mechanical weak point portion is removed. Bottle caps that require additional operations such as breaking are problematic in that they require more operations during drinking. Furthermore, the bottle cap that opens the raw material powder in the raw material container into the bottle by aligning the holes as in the bottle cap disclosed in Patent Document 3 has a problem in terms of sealing performance of the raw material container.

  Therefore, an object of the present invention is to solve the problems existing in the prior art, and in a packaging container closed by a cap, the additive can be separated and sealed from the solution, and foreign matters are mixed only by opening operation when drinking. It is to be able to release the additive into the solution without it.

In order to achieve the above object, according to one aspect of the present invention, there is provided a generally cylindrical shape having one end portion and the other end portion and attached to the packaging container with the one end portion being inserted into the packaging container. A sealing piece, a cap screwed into a male thread portion provided at the other end of the pouring piece, a closed end, an open end located on the opposite side of the closed end, and the open end A substantially cylindrical cartridge having a sealing member capable of being cleaved and capable of enclosing an additive to the contents of the packaging container, and a cleaving provided in the dispensing piece An opening claw, and at least a part of the inner peripheral surface of the extraction piece and a part of the outer peripheral surface of the cartridge, the thread in the winding direction opposite to the thread of the male thread portion of the extraction piece A corresponding threaded portion having When the cap is screwed, the cap engages with the closed end of the cartridge. When the cap is rotated in the opening direction, the cap and the cartridge are engaged. The cartridge moves in a direction away from the cap while rotating in the dispensing piece, and the sealing member is torn against the tearing claw, and the closed end of the cartridge A recess is formed on the peripheral surface of the recess, and an engaging claw extending in the longitudinal axis direction of the cartridge is formed on the peripheral surface of the recess, and the cap extends in the axial direction from the closed end of the cap toward the inside of the cap. An engaging protrusion is provided so that the engaging protrusion can be engaged with the engaging claw of the cartridge when the cap is screwed onto the dispensing piece. Furthermore, the inner peripheral surface of the extraction piece and the outer peripheral surface of the cartridge are separated except for the screw portion, and when the cap is removed from the other end of the extraction piece, There is provided a spout unit in which the contents of the packaging container can be sucked from the other end of the pouring piece through the inner circumferential surface of the pouring piece and the outer circumferential surface of the cartridge .

  The plug unit can contain the additive in a sealed state in a cartridge sealed by a sealing member. In addition, the cartridge moves in a direction away from the cap in the pouring piece with the operation of rotating the cap with respect to the pouring piece for opening the plug, so that the sealing member is cleaved, so that the additive in the cartridge Is released into the packaging container. Further, the additive is released from the cartridge by cleaving the sealing member with the claw for cleaving by the movement of the cartridge in the dispensing piece that is performed in accordance with the opening operation.

In the above spout unit, before Kigakarigo projection and the engaging claws are ratchet teeth shape, it is allowed to the engaging projection is moved over the said engaging pawl when rotating the cap in the plugging direction that one, it is good preferable that the engaging projection when rotating the cap in the cap opening direction is adapted to be prevented from moving to overcome the engagement claw.

  In another aspect, the present invention provides a packaging container with a cap or a packaging bag with a plug, wherein the plug unit is attached to the packaging container or the packaging bag.

  Moreover, this invention is a method for manufacturing the said packaging container with a stopper in another aspect, Comprising: The step which attaches a pouring piece to the spout of a packaging container, The inside of the said packaging container through the said pouring piece A step of filling the contents into the pouring piece, a step of inserting the cartridge into the pouring piece while rotating the cartridge until the cartridge is completely accommodated in the pouring piece, and a screw on the male thread portion of the pouring piece. And providing a method for manufacturing a stoppered packaging container including the step of engaging the cap with the cartridge.

  According to the present invention, since the additive can be stored in the cartridge sealed by the sealing member, it is possible to store the additive with high sealing performance in a state separated from the contents of the container before drinking. it can. In addition, since the additive in the cartridge is released into the packaging container by rotating the cap with respect to the dispensing piece for opening, additional operations other than the opening operation are required when drinking. Nor. Furthermore, since the release of the additive from the cartridge is not performed by dropping the sealing member from the cartridge but by the tearing of the sealing member by the claw for tearing, no foreign matter falling into the packaging container is generated. .

It is longitudinal direction sectional drawing of the spout unit by the 1st Embodiment of this invention. It is a side view of the extraction piece of the cap unit of FIG. It is a longitudinal cross-sectional view of the extraction piece of FIG. It is a top view which shows the cartridge raising stop protrusion part of the extraction | pouring piece of FIG. FIG. 2 is a diagram showing a relationship between an engaging projection of a closing cap and an engaging claw of a cartridge when closing the cap unit of FIG. 1. FIG. 2 is a diagram showing a relationship between an engagement projection of a closure cap and an engagement claw of a cartridge when the plug unit of FIG. 1 is opened. It is a flowchart which shows the manufacturing method of the packaging container with a stopper using the stopper unit by this invention. It is a perspective view which shows the whole structure of the packaging container with a stopper using the stopper unit by this invention. It is longitudinal direction sectional drawing of the spout unit by the 2nd Embodiment of this invention. It is a side view of the extraction piece of the cap unit of FIG. FIG. 10 is a cross-sectional view taken along line XI-XI in FIG. 9. It is sectional drawing in line XII-XII of FIG.

Hereinafter, several embodiments according to the present invention will be described in detail with reference to the drawings.
As shown in FIG. 8, the stopper-equipped packaging container or packaging bag 10 includes a mouthpiece unit 12 made of plastic or the like, and a sealed bag-shaped packaging container or packaging bag 14 made of plastic or the like ( Hereinafter, it is simply described as a packaging container.), And is used for containing and holding the contents in the packaging container 14 in a sealed state. For example, the content is a beverage product.

  1 to 6 show a spout unit according to a first embodiment of the present invention. Referring to FIG. 1, the cap unit 12 includes a generally cylindrical pouring piece 18 attached to the pouring port 16 of the packaging container 14, and a cap 20 that is screwed into the pouring piece 18 to close the pouring piece 18. And a substantially cylindrical cartridge 22 inserted and accommodated in the dispensing piece 18.

  The dispensing piece 18 has a substantially cylindrical straw portion 24 inserted into the packaging container 14 and a substantially cylindrical shape that is disposed on the opposite side of the straw portion 24 and protrudes outside the packaging container 14. And mouth portion 26. A spiral male screw portion 28 is formed on the outer peripheral surface of the mouth portion 26, and the closure cap 20 having a female screw portion 46 corresponding to the male screw portion 28 formed therein can be screwed into this. Yes. The male thread portion 28 may be formed by one thread or may be formed by multiple threads. As shown in FIG. 2, a groove 28 a extending in the longitudinal axis direction of the extraction piece 18 may be provided in the male screw portion 28 of the mouth portion 26.

  A pair of fan-shaped stoppers 30 extending horizontally from the outer peripheral surface to the side are provided at the lower end portion of the mouth portion 26 of the dispensing piece 18, and are in contact with the open end of the closure cap 20 to position the closure cap 20. Is to regulate. On the other hand, a suction port 32 is provided at the lower end of the straw portion 24 (see FIG. 1), and one or a plurality of side holes 34 are provided in the peripheral wall portion of the straw portion 24. The contents can flow into the straw portion 24 through the suction port 32 and the side hole 34.

  Between the stopper 30 of the mouth portion 26 of the pouring piece 18 and the straw portion 24, three octagonal flat plate-like pedestals 36 extending horizontally outward from the outer peripheral portion of the pouring piece 18, and the pedestal 36 An attachment portion 38 is formed which is located below the fitting container and fits into the spout 16 of the packaging container 14. It is preferable that the attaching part 38 is provided with a pair of plate-shaped ear | edge part which protrudes toward both sides from an outer peripheral part so that the packaging material around the spout 16 of the packaging container 14 may be attached easily.

  A claw 40 for cleaving for cleaving a sealing member 68 of the cartridge 22 described later is further provided inside the dispensing piece 18. In the present embodiment, the claw 40 for tearing is provided in the suction port 32 provided at the lower end of the straw portion 24 of the extraction piece 18, and the mouth portion 26 of the extraction piece 18 from the peripheral portion of the suction port 32. It extends toward. However, as long as the claw 40 for cleaving is arranged so that the sealing member 68 of the cartridge 22 can be cleaved, the installation location of the claw 40 for cleaving is not particularly limited.

  Further, as shown in FIGS. 1 and 3, on the inner peripheral surface of the extraction piece 18, there are a male screw portion 28 provided on the outer peripheral surface of the mouth portion 26 and a female screw portion 46 provided on the closing cap 20. A spiral female thread portion 42 having a thread in the winding direction opposite to that of the screw thread is formed, and a male thread portion 56 of the cartridge 22 to be described later can be screwed thereto. In the present embodiment, the female thread portion 42 of the dispensing piece 18 is provided on the inner peripheral surface of the mouth portion 26. However, if the male thread portion 56 of the cartridge 22 can be screwed together, the female thread portion 42 of the dispensing piece 18 is It is also possible to provide on the inner peripheral surface of the extraction piece 18 other than the portion 26.

  Further, a cartridge ascending stop projection 44 as shown in FIGS. 3 and 4 is provided immediately above the female thread portion 42 on the inner peripheral surface of the mouth portion 26. On the inner peripheral surface of the upper straw portion, there is provided a cartridge lowering stop protrusion 45 that slightly protrudes inward in the radial direction. The cartridge ascending / stopping projection 44 is shaped like a ratchet tooth. When the cap 20 to be described later is screwed into the mouth portion 26 of the pouring piece 18 to close the pouring piece 18, It functions to prevent the cartridge 22 from rising and protruding from the dispensing piece 18 in the piece 18. The cartridge lowering stop projection 45 has a ring shape, and the cartridge 22 is placed in the dispensing piece 18 until the entire cartridge 22 including the enlarged head 58 is completely accommodated in the dispensing piece 18. When inserted, the sealing member 68 at the open end 54 of the cartridge 22 comes into contact with the peripheral edge of the open end 54 of the cartridge 22 that is sealed by the sealing member 68 before contacting the claw 40 for tearing. It functions to prevent the sealing member 68 from being cleaved by the claw 40 for cleaving when the cartridge 22 is inserted. However, the cartridge raising / lowering protrusion 44 and the cartridge lowering / lowering protrusion 45 are not essential components, and may be omitted.

  The closing cap 20 has a substantially cup shape and is screwed into the mouth portion 26 of the pouring piece 18 to close it. A spiral female threaded portion 46 is formed on the inner peripheral surface of the closure cap 20 and can be screwed into the male threaded portion 28 of the mouth portion 26 of the dispensing piece 18. The female threaded portion 46 of the closing cap 20 may be formed by a single thread as long as it corresponds to the male threaded portion 28 of the mouth portion 26 of the pouring piece 18, and may be formed by multiple threads. Also good. A groove (not shown) extending in the axial direction may be provided in the female screw portion 46 of the closing cap 20 in the same manner as the male screw portion 28 of the mouth portion 26 of the dispensing piece 18. In addition, a plurality of ribs 48 are formed on the outer peripheral surface of the closure cap 20 so as to be easily spaced and spaced apart in the circumferential direction and to extend in the axial direction. (See FIG. 1).

  Further, as shown in FIG. 1, the inside of the closure cap 20 extends in the axial direction (or screwing axial direction) of the closure cap from the closed end surface 20 a (the top surface in FIG. 1) of the closure cap 20. An engagement protrusion 50 is provided. The engaging protrusion 50 engages with the end of the cartridge 22 inserted into the dispensing piece 18 when screwed into the mouth portion 26 of the dispensing piece 18, and the cartridge 22 is rotated as the closure cap 20 rotates. Can be rotated. In the present embodiment, the four engagement protrusions 50 are provided at equal intervals in the circumferential direction, but the number of engagement protrusions 50 may be more or less than four. The engaging protrusion 50 preferably has a ratchet tooth shape. Note that the length of the engaging protrusion 50 is such that when the cartridge 22 moves in the dispensing piece 18 to a position where a sealing member 68 (to be described later) is cleaved by the claw 40 for cleaving, the engaging protrusion 50 moves to the cartridge 22. It is determined that it can continue to be engaged with the end portion.

  The cartridge 22 has a substantially cylindrical shape having a closed end 52 and an open end 54 located on the opposite side, and a helical male screw portion 56 is provided on at least a part of the outer peripheral surface thereof. The male screw portion 56 of the cartridge 22 is formed by a screw thread in the winding direction opposite to the screw thread of the male screw portion 28 provided on the outer peripheral surface of the mouth portion 26 of the dispensing piece 18 and the female screw portion 46 provided on the cap cap 20. It is screwed into a female screw portion 42 provided on the inner peripheral surface of the pouring piece 18. The closed end 52 of the cartridge 22 has an outer peripheral shape that is tapered toward the tip, and an enlarged head 58 having a larger diameter than the remaining portion of the cartridge 22 is connected to the tip. . A recess 60 is formed in the enlarged head 58, and an engaging claw 62 that extends in the longitudinal axis direction of the cartridge 22 and protrudes inward in the radial direction is provided on the peripheral surface of the recess 60. In the present embodiment, four engagement claws 62 are provided at equal intervals in the circumferential direction. However, the engagement claws 62 can be engaged with the engagement protrusions 50 of the closure cap 20. The number of engaging claws 62 may be less than four or more than four. However, the number of engaging claws 62 is preferably equal to the number of engaging protrusions 50 of the closure cap 20. Moreover, it is preferable that the engaging claw 62 has a ratchet tooth shape as shown in FIGS. Since the enlarged head 58 has a larger diameter than the remaining portion of the cartridge 22, the outer peripheral surface of the remaining portion of the cartridge 22 and the inner peripheral surface of the dispensing piece 18 are reliably separated from each other. During this time, the contents in the packaging container 14 are easily distributed. Further, the engaging claw 62 may be disposed only around the upper end of the recess 60.

  A constricted portion is formed at the closed end 52 of the cartridge 22 by the enlarged head 58 and the conical portion. A plurality of communication holes 64 for communicating the inside of the recess 60 of the enlarged head 58 and the constricted portion are provided on the end surface of the enlarged head 58 on the constricted portion side. Due to the presence of the communication hole 64, even when the cartridge 22 is inserted into the dispensing piece 18, it passes between the inner peripheral surface of the dispensing piece 18 and the outer peripheral surface of the cartridge 22 through the suction port 32 and the side hole 34. Thus, the contents in the packaging container 14 to be inhaled easily reach the mouth portion 26 of the dispensing piece 18. However, even if the communication hole 64 is not provided, the content in the packaging container 14 that is sucked from the suction port 32 and the side hole 34 through the space between the inner peripheral surface of the extraction piece 18 and the outer peripheral surface of the cartridge 22. Since the object can reach the mouth portion 26 of the pouring piece 18 through the space between the female screw portion 42 of the pouring piece 18 and the male screw portion 56 of the cartridge 22, the communication hole 64 is not necessarily provided. . Since the constricted portion is weaker than the other portions, the constricted portion includes a rib 66 extending in the longitudinal axis direction of the cartridge 22 as shown in FIG. 1 to reinforce the constricted portion. Is preferably provided.

  On the other hand, as shown in FIG. 1, a sealing member 68 is attached to the open end 54 of the cartridge 22, and an additive 70 to be mixed with the contents in the packaging container 14 is placed inside the cartridge 22. It can be accommodated in a sealed state. The sealing member 68 is made of a material that can be cleaved by the claw 40 for cleaving, and can be made of, for example, a laminated aluminum film. Further, the sealing member 68 may be made of thin plastic or the like as long as it can be cleaved.

  The cartridge 22 has such a length that the entire cartridge 22 including the enlarged head 58 is completely accommodated in the dispensing piece 18 when the open end 54 comes into contact with the cartridge lowering stop projection 45. Have.

Next, the usage method and effect | action of the cap unit 12 of this embodiment are demonstrated.
In the plug unit 12 in the state shown in FIG. 1, when the plug cap 20 is rotated in the plug opening direction, the plug cap 20 moves upward in FIG. 1 while rotating. On the other hand, when the closure cap 20 is rotated, the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 are engaged, and the cartridge 22 is rotated in the dispensing piece 18 as the closure cap 20 rotates. Let

  Here, when the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 have ratchet teeth, as shown in FIG. 5, when the closure cap 20 is rotated in the closure direction, the closure is performed. Even if the engagement protrusion 50 of the cap 20 and the engagement claw 62 of the cartridge 22 are engaged, the engagement protrusion 50 of the closure cap 20 is allowed to easily get over the engagement claw 62 of the cartridge 22, while FIG. As shown in FIG. 4, when the closure cap 20 is rotated in the opening direction, the engagement protrusion 50 of the closure cap 20 can be prevented from getting over the engagement claw 62 of the cartridge 22. Therefore, when the cap 22 is screwed into the mouth portion 26 of the pouring piece 18 to close the cap 22 with the cartridge 22 inserted in the pouring piece 18, the cartridge 22 is hardly rotated in the pouring piece 18. While the cap can be closed, the cap 22 and the cartridge 22 are firmly engaged with each other when the cap is opened, and the cartridge 22 can be reliably rotated in the dispensing piece 18 as the cap cap 20 rotates.

  As described above, the external thread portion 28 on the outer peripheral surface of the pouring piece 18, the internal thread portion 46 on the inner peripheral surface of the stopper cap 20, the internal thread portion 42 on the inner peripheral surface of the pouring piece 18, and the external thread portion on the outer peripheral surface of the cartridge 22. The winding direction of the thread is opposite to 56. Therefore, when the cartridge 22 rotates in the dispensing piece 18 with the rotation of the closing cap 20 in the opening direction (which causes the closing cap 20 to move away from the dispensing piece 18), the cartridge 22 rotates. However, the inside of the pouring piece 18 moves away from the closing cap 20, and the sealing member 68 comes into contact with the claw 40 for tearing.

  The open end 54 of the cartridge 22 sealed by the blocking member 68 is in contact with and engaged with the cartridge lowering stop projection 45 before contacting the tearing claw 40. The amount of protrusion 45 is small, and the engagement force between the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 is between the peripheral edge of the open end 54 of the cartridge 22 and the cartridge lowering stop protrusion 45. Since it is configured to overcome the engaging force, the opening end 54 of the cartridge 22 easily gets over the cartridge lowering stop projection 45 without tearing the sealing member 68 by rotating the closing cap 20 in the opening direction. be able to.

  When the closing cap 20 is further rotated in the opening direction from the state in which the sealing member 68 is in contact with the tearing claw 40, the sealing member 68 that seals the open end 54 of the cartridge 22 is rotated to the tearing claw 40. The sealing member 68 is cleaved by contact, and the additive 70 in the cartridge 22 is discharged to the solution in the packaging container 14 through the suction port 32 of the dispensing piece 18. The cap 20 and the cartridge 22 move away from each other when the cap is opened, but the engaging protrusion 50 of the cap 20 and the engaging claw 62 of the cartridge 22 are both in the longitudinal axis direction of the dispensing piece 18. Since it extends, the engagement between the engagement protrusion 50 and the engagement claw 62 is not released until the sealing member 68 is cleaved by the claw 40 for cleaving. Further, since the pitch of the thread portion is set so that the cartridge 22 stops at a rotation of less than 360 ° after the sealing member 68 contacts the cleaving claw 40, the sealing member 68 is completely disengaged from the open end 54 of the cartridge 22. The sealing member 68 does not fall into the packaging container 14.

  When the capping cap 20 is removed from the mouth portion 26 of the dispensing piece 18, the user can drink the contents in the packaging container 14 from the mouth portion 26 of the dispensing piece 18. During drinking, the contents in the packaging container 14 pass from the suction port 32 and the side hole 34 of the pouring piece 18 through the gap between the inner peripheral surface of the pouring piece 18 and the outer peripheral surface of the cartridge 22 to the mouth portion 26. Will reach. Further, the contents in the packaging container 14 reach the mouth portion 26 through the communication hole 64.

  As described above, when the spout unit 12 of the present invention is used, the additive 70 is stored in a sealed state in the cartridge 22 until drinking, and the additive 70 stored in the cartridge 22 is stored in the packaging container 14 when drinking. The solution can be released and mixed. Further, since the sealing member 68 of the cartridge 22 is only cleaved by the claw 40 for cleaving, the sealing member 68 does not fall into the packaging container 14. Furthermore, since the additive 70 in the cartridge 22 is released into the solution in the packaging container 14 by the opening operation, no additional operation is required for releasing the additive 70.

Next, with reference to FIG. 7, the method to fill the packaging container 10 with a cap using the cap unit 12 of this invention is demonstrated.
First, the additive 70 is filled from the open end 54 of the cartridge 22, and the sealing member 68 is attached to the open end 54 in a sealed state using an ultrasonic seal, a high frequency seal, a heat seal or the like. Further, the sealing member 68 may be attached to the open end 54 in a stoppering manner. Next, the straw portion 24 of the spout piece 18 of the spout unit 12 is inserted into the packaging container 14 through the spout 16 of the packaging container 14, and the mounting portion 38 is fitted to the spout 16 in the attached state. By attaching a packaging material around the spout 16 of the packaging container 14 to the ears 38, the spout 16 of the packaging container 14 with the spout piece 18 projecting the mouth 26 out of the packaging container 14 is provided. Attached to. Next, a solution such as water is injected from the mouth portion 26 of the dispensing piece 18 and filled into the packaging container 14 through the side hole 34 and the suction port 32.

  When the filling of the packaging container 14 is completed, the cartridge 22 in a state where the sealing member 68 is attached to the open end 54 and the additive 70 is sealed is completely accommodated in the dispensing piece 18. Until it is inserted into the extraction piece 18 while rotating with the sealing member 68 side as the head. If the cartridge lowering stop projection 45 is provided on the dispensing piece 18, the peripheral portion of the open end 54 of the cartridge 22 before the blocking member 68 that blocks the open end 54 of the cartridge 22 contacts the claw 40 for tearing. Engages with the cartridge lowering stop projection 45, and when the cartridge 22 is inserted into the dispensing piece 18, the cartridge 22 is inserted too deeply into the dispensing piece 18 and the sealing member 68 is mistakenly broken. Can be prevented from being cleaved. When the male screw portion 56 on the outer peripheral surface of the cartridge 22 and the female screw portion 42 on the inner peripheral surface of the pouring piece 18 are screwed together and the cartridge 22 is completely accommodated in the pouring piece 18, the mouth of the pouring piece 18 The stopper cap 20 is fastened to the portion 26. At this time, since the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 are engaged, the cartridge 22 is also rotated with the rotation of the closure cap 20. As described above, the external thread portion 28 on the outer peripheral surface of the pouring piece 18, the internal thread portion 46 on the inner peripheral surface of the closure cap 20, the external thread portion 56 on the outer peripheral surface of the cartridge 22, and the internal thread portion on the inner peripheral surface of the pouring piece 18. Since the screw winding direction is opposite to that of 42, when the plug cap 20 is rotated in the plug closing direction, the cartridge 22 engaged with the plug cap 20 moves in the dispensing piece 18 in a direction approaching the plug cap 20. . Then, the closed end 52 (specifically, the enlarged head portion 58) of the cartridge 22 abuts on the closed end surface 20a of the closure cap 20, and the engagement protrusion 50 of the closure cap 20 gets over the engagement claw 62 of the cartridge 22 by its resistance. Thus, the cartridge 22 does not rise any further.

  In addition, a ratchet tooth-shaped cartridge rising / stopping protrusion 44 is provided on the pouring piece 18, and the end of the threading of the pouring piece 18 on the side of the cap 20 is a ratchet tooth corresponding to the cartridge rising / stopping protrusion 44 In the case of the shape, when the cartridge 22 is inserted into the dispensing piece 18, the end of the thread of the external thread 56 on the outer peripheral surface of the cartridge 22 is allowed to easily get over the cartridge ascending stop projection 44, while the cartridge 22 It is possible to prevent the threaded end of the external thread 56 on the outer peripheral surface of the cartridge 22 from getting over the cartridge stop protrusion 44 when the 22 is about to protrude from the dispensing piece 18. Sometimes it is possible to reliably prevent the cartridge 22 from rising above a predetermined position. It made.

  Furthermore, as described above, when the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 have a ratchet tooth shape, the closure cap 20 is removed as shown in FIGS. When rotating in the closing direction, even if the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 are engaged, the engagement protrusion 50 of the closure cap 20 can easily get over the engagement claw 62 of the cartridge 22. On the other hand, it is possible to prevent the engagement protrusion 50 of the closure cap 20 from getting over the engagement claw 62 of the cartridge 22 when the closure cap 20 is rotated in the opening direction. Therefore, when the cap 22 is screwed into the mouth portion 26 of the pouring piece 18 to close the cap 22 with the cartridge 22 inserted in the pouring piece 18, the cartridge 22 is hardly rotated in the pouring piece 18. Can be plugged. This is effective for controlling the arrangement position of the cartridge 22 in the dispensing piece 18.

  9 to 12 show a spout unit 12 'according to a second embodiment of the present invention. 9 to 12, the same reference numerals are assigned to the respective parts of the plug unit 12 ′ according to the second embodiment corresponding to the respective parts of the plug unit 12 according to the first embodiment. The plug unit 12 ′ according to the second embodiment has an annular protrusion 72 provided on the inner peripheral surface of the straw portion 24 of the pouring piece 18, and the upper protrusion 74 and the outer peripheral surface of the cartridge 22. The difference from the first embodiment is that a lower protrusion 76 is provided.

  The annular raised portion 72 is raised in a ring shape slightly inward in the radial direction from the inner peripheral surface of the straw portion 24 of the pouring piece 18, and when the cartridge 22 is inserted into the pouring piece 18, The lower protrusion 76 is brought into contact with and engaged with the lower protrusion 76.

  The upper projecting portion 74 projects slightly outward from the inner diameter of the straw portion 24 of the pouring piece 18, and contacts the inner peripheral surface of the straw portion 24 when the cartridge 22 is inserted into the pouring piece 18. Thus, rotation resistance is generated when the cartridge 22 is rotated in the dispensing piece 18. In the present embodiment, as shown in FIG. 11, the circumferential direction on the outer circumferential surface of the cartridge 22 is such that each upper protrusion 74 engages with each side hole 34 of the straw portion 24 of the dispensing piece 18. Are provided with four upper projections 74 spaced apart at equal intervals. However, the upper protruding portion provided with the contents in the packaging container 14 sucked from the suction port 32 and the side hole 34 through the space between the inner peripheral surface of the extraction piece 18 and the outer peripheral surface of the cartridge 22 apart from each other. Since it is only necessary to be able to reach the mouth portion 26 of the pouring piece 18 through the space 74, the upper protrusion 74 may be more or less than four.

  The lower protruding portion 76 protrudes radially outward from the outer peripheral surface of the cartridge 22, and when the cartridge 22 is inserted into the pouring piece 18, the lower protruding portion 76 is formed on the annular raised portion 72 of the straw portion 24 of the pouring piece 18. While contacting, it has the dimension which does not contact the inner peripheral surface of the straw part 24 of the other extraction piece 18. FIG. In the present embodiment, as shown in FIG. 12, four lower protrusions 76 are provided on the outer peripheral surface of the cartridge 22 at regular intervals in the circumferential direction. However, the lower protrusion in which the contents in the packaging container 14 sucked from the suction port 32 and the side hole 34 through the space between the inner peripheral surface of the extraction piece 18 and the outer peripheral surface of the cartridge 22 are provided separately. As long as it can reach the mouth portion 26 of the pouring piece 18 through the space between the portions 76, the lower protrusion 76 may be more or less than four.

  When the annular bulge 72 and the lower protrusion 76 are brought into contact with and engaged with each other, the entire cartridge 22 including the enlarged head 58 is placed in the dispensing piece 18. The sealing member 68 that is accommodated and seals the open end of the cartridge 22 is provided at a position that does not contact the claw 40 for tearing. On the other hand, the upper protruding portion 76 can be provided at any position as long as it is above the lower protruding portion 76, but when the entire cartridge 22 including the enlarged head 58 is accommodated in the dispensing piece 18. It is preferable that the upper protrusion 76 is provided at a position where it can engage with the side hole 34 of the extraction piece 18.

  Since the other structure of the plug unit 12 'of the second embodiment is the same as that of the plug unit 12 of the first embodiment, detailed description thereof is omitted here.

Next, the operation of the annular raised portion 72, the upper protruding portion 74, and the lower protruding portion 76 of the plug unit 12 ′ of the present embodiment will be described.
The lower protrusion 76 inserts the cartridge 22 into the dispensing piece 18 until the entire cartridge 22 including the enlarged head 58 is completely accommodated in the dispensing piece 18 of the spout unit 12 'of the present embodiment. When the sealing member 68 that seals the open end 54 of the cartridge 22 comes into contact with and engages with the annular ridge 72 on the inner peripheral surface of the cartridge 22 before contacting the tearing claw 40, It functions to prevent the sealing member 68 from being cleaved by the claw 40 for cleaving when the cartridge 22 is inserted. On the other hand, the amount of bulging inward in the radial direction of the annular bulging portion 27 is small, and the engagement force between the engagement protrusion 50 of the closure cap 20 and the engagement claw 62 of the cartridge 22 is lower when the plug is opened. Since the engagement force between the ridge and the annular bulge 72 is overcome, the lower protrusion 76 can easily get over the bulge 72 by rotating the closure cap 20 in the opening direction. The member 68 can be brought close to the claw 40 for tearing.

  Moreover, since the upper side protrusion part 74 is in the state accommodated in the extraction | pouring piece 18, it contacts the inner peripheral surface of the straw part 24 or engages with the side hole 34 of the straw part 24, Therefore When the closure cap 20 is rotated in the closing direction in order to fasten the closure cap 20 to the mouth portion 26, rotation resistance is generated. This rotation resistance allows the engagement protrusion 50 of the closure cap 20 to get over the engagement claw 62 of the cartridge, and prevents or suppresses the rotation of the cartridge 22, so that the upper protrusion 74 prevents the closure of the closure cap 20. It fulfills the function of preventing or suppressing the rise of the cartridge 22 due to the direction rotation. In particular, as shown in FIG. 11, four upper protrusions 74 spaced in the circumferential direction are provided on the outer peripheral surface of the cartridge 22, and each upper protrusion 74 corresponds to each side hole 34 of the straw portion 24 of the pouring piece. , The rotational resistance increases, and the cartridge 22 can be hardly raised. On the other hand, the upper projecting portion 74 projects only slightly outward from the inner diameter of the straw portion 24 of the pouring piece 18, and at the time of opening, the engaging protrusion 50 of the closing cap 20 and the engaging claw of the cartridge 22. Since the engaging force with 62 is configured to overcome the rotational resistance due to the contact between the upper protruding portion 74 and the inner peripheral surface of the straw portion 24 or the engagement between the upper protruding portion 74 and the side hole 34 of the straw portion 24. The cartridge 22 can be rotated by rotating the closing cap 20 in the opening direction, and the sealing member 68 can be brought close to the claw 40 for tearing.

  Thus, the upper protrusion 74 of the second embodiment performs substantially the same function as the cartridge ascending / stopping protrusion 44, and the annular ridge 72 and the lower protrusion 76 of the second embodiment are used to stop the cartridge descending. Almost the same function as the protrusion 45 can be achieved. Therefore, the upper protrusion 74 may be provided in addition to the cartridge rise / stop projection 44 or may be provided in place of the cartridge rise / stop projection 44. Further, the annular raised portion 72 and the lower protrusion 76 may be provided in addition to the cartridge lowering stop protrusion 45 or may be provided instead of the cartridge lowering stop protrusion 45.

  Other than the above, the method of using the plug unit 12 ′ and the operation and the method of filling the packaging container 10 with the plug or the packaging bag 10 using the plug unit 12 ′ are the same as in the first embodiment. Since there are these, detailed explanation is omitted here.

  Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the illustrated embodiment. For example, in the illustrated embodiment, the thread portion is provided only on the outer peripheral surface of the enlarged head 58 of the cartridge 22 and the inner peripheral surface of the mouth portion 26 of the dispensing piece 18. The surface and the entire inner peripheral surface of the extraction piece 18 may be provided. Even in this case, the contents of the packaging container 14 sucked from the suction port 32 and the side hole 34 of the pouring piece 18 pass through the gap between the male screw portion 56 of the cartridge 22 and the female screw portion 42 of the pouring piece 18. The mouth portion 26 of the dispensing piece 18 can be reached.

DESCRIPTION OF SYMBOLS 10 Container with plug 12 Plug unit 12 'Plug unit 14 Packaging container 16 Outlet 18 Outlet piece 20 Closing cap 22 Cartridge 24 Straw part 26 Mouth part 28 Male thread part 40 Cleavage claw 42 Female thread part 46 Female thread part 50 Engagement protrusion 52 Closed end 54 Open end 56 Male thread 60 Recess 62 Engagement claw 68 Sealing member 70 Additive

Claims (5)

A generally cylindrical pouring piece attached to the packaging container with one end and the other end inserted into the packaging container, and provided at the other end of the pouring piece A cap threadedly engaged with the male threaded portion, a closed end, an open end located on the opposite side of the closed end, and a tearable sealing member for sealing the open end; A cartridge having a substantially cylindrical shape capable of enclosing the additive in the inside thereof, and a claw for tearing provided in the extraction piece, and including at least a part of the extraction piece Corresponding screw portions having a thread in the winding direction opposite to the thread of the male thread portion of the extraction piece are provided on the peripheral surface and at least a part of the outer peripheral surface of the cartridge. When the cap is screwed, the cap The cap is engaged with the closed end of the cartridge, and when the cap is rotated in the opening direction, the cartridge is rotated in the dispensing piece by the engagement of the cap and the cartridge. Moving in a direction away from the sealing member, the sealing member comes into contact with the claw for cleaving and is cleaved ,
A concave portion is formed in the closed end of the cartridge, and an engaging claw extending in the longitudinal axis direction of the cartridge is formed on a peripheral surface of the concave portion, and the cap extends from the closed end of the cap to the inside of the cap. An engagement protrusion extending in the axial direction toward the engagement piece, and the engagement protrusion can be engaged with the engagement claw of the cartridge when the cap is screwed to the extraction piece.
Further, the inner peripheral surface of the extraction piece and the outer peripheral surface of the cartridge are separated except for the threaded portion, and when the cap is removed from the other end of the extraction piece, A spout unit characterized in that the contents of the packaging container can be sucked from the other end of the extraction piece through an inner peripheral surface and an outer peripheral surface of the cartridge . The engaging protrusion and the engaging claw are ratchet teeth, and when the cap is rotated in the closing direction, the engaging protrusion is allowed to move over the engaging claw while the cap is opened. The spigot unit according to claim 1, wherein the engaging projection is prevented from moving over the engaging claw when rotating in the stopper direction. A packaging container with a cap, wherein the cap unit according to claim 1 or 2 is attached to the packaging container. A packaging bag with a cap, wherein the plug unit according to claim 1 or 2 is attached to the packaging bag. A method for producing a packaging container with a cap according to claim 3,
  Attaching the extraction piece to the outlet of the packaging container;
  Filling the packaging container with contents through the dispensing piece;
  Inserting the cartridge into the dispensing piece while rotating the cartridge until the cartridge is completely received in the dispensing piece;
  Screwing a cap into the male thread portion of the dispensing piece to engage the cap with the cartridge;
  A method for producing a packaging container with a spigot.

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