JP6183847B2 - Refill container stopper - Google Patents

Description

  The present invention relates to a plug for a refill container, and more particularly, to a plug for a refill container that is attached to cover the refill outlet of the refill container for refilling the contents of the refill container.

  In recent years, with regard to synthetic resin containers that contain various liquids and other contents, it has become possible to reduce the environmental burden, and various thin-walled containers have been developed that reduce the amount of resin used. Yes. In addition, refill containers such as pouches are often used as containers for storing various detergents and foods. The refill container can be refilled or refilled with a refilled container equipped with a discharge nozzle and a pour-out unit, so that an expensive refill container can be used for a long time without being discarded each time. Make it available.

  On the other hand, a refill container such as a pouch is formed of a soft packaging material that is rich in flexibility and flexibility, and the container is likely to be deformed during refilling work, and is likely to be extremely unstable. In addition, the refilling operation of the contents by the refill container can be performed by, for example, a) cutting the tip of the nozzle part, b) pouring at an angle, c) holding the tilted state, d) squeezing, e) not spilling. Although it is carried out by work steps such as discarding with care, refilling the contents by these work steps is time consuming and easily spills the contents during the work.

  For this reason, a refill container has been proposed in which the refill outlet of the container formed of the soft wrapping material is securely connected to the mouth portion of the refill container to improve refillability ( For example, see Patent Document 1 and Patent Document 2). In the refill container of Patent Document 1, a plug body having a cylindrical portion with an internal thread formed on the inner peripheral surface is attached to the refill outlet, and is formed on the outer peripheral surface of the mouth portion of the refill container. The internal thread of the cylinder part is screwed to the external thread, and the refill outlet of the refill container is connected to the neck of the refill container.

JP 2006-89133 A JP 2012-30860 A

  However, the refill container of Patent Document 1 requires an operation of removing a cap or a seal part covering the distal end opening of the cylindrical part of the plug body or screwing the cylindrical part to the mouth part of the refilled container. Therefore, the refill outlet can be easily and surely communicated with the mouth of the refill container by a simple one-action operation, and the contents can be refilled in a stable state. Therefore, development of new technology is desired. Further, in the refill container of Patent Document 1, since the mouth portion of the refill container is covered with the cylindrical portion of the plug attached to the refill outlet of the refill container, Since it is difficult to perform air replacement with the outside air, it is difficult to perform the refilling operation smoothly.

  In the refill container of Patent Document 2, it is possible to open the refill container simply by opening the cap and inserting it, and the refill work can be performed with an easy operation. On the other hand, because of the mechanism for opening the slit portion, it is difficult to stabilize the opening force, and furthermore, since a composite member is used, there are problems in terms of environment and cost.

  INDUSTRIAL APPLICABILITY The present invention is used by being attached to a refill container, and allows the refill outlet of the refill container to communicate with the mouth of the refill container with simple operation and simple force, and facilitates air replacement. Thus, an object of the present invention is to provide a plug for a refill container that can refill the contents into a refill container in a smooth and stable state.

  The present invention is a plug for a refill container for refilling the contents to be refilled, covering the refill outlet of the refill container, and is joined to the opening peripheral portion of the refill outlet. The stopper body is fixed, and the outlet opening formed in the top plate of the stopper body is closed from the inside in the outlet direction, and the stopper lid is detachably attached to the stopper body. An outflow cylinder that surrounds the outflow opening and protrudes outward from the top plate in the outflow direction, and substantially the same as the outer diameter of the mouth portion of the refill container that protrudes outward from the top plate and surrounds the outflow cylinder A cylindrical outer wall having an inner diameter and an attachment cylinder that surrounds the outflow opening and protrudes inward in the outflow direction from the top plate, and the plug body is adjacent to the radially outer side of the outflow cylinder. Insertion opening formed in the top plate, or the outflow opening An insertion opening formed in the top plate is formed in the top plate continuously to the outer peripheral edge of the outflow tube, and includes an outer peripheral surface of the outflow tube, an outer peripheral surface of the mounting tube, and a cylindrical outer wall. An external air communication opening formed in the top plate in an area between the inner peripheral surface, the plug lid includes a mounting wall surface portion whose outer peripheral surface is in close contact with the inner peripheral surface of the mounting cylinder, and the mounting A blocking plate portion having a planar shape similar to the hollow cross-sectional shape of the cylinder, and a pressing convex portion erected from a peripheral portion of the blocking plate portion, and the pressing convex portion is disposed through the insertion port. In the state where the top surface plate protrudes outward in the outflow direction along the outflow tube and at least a part of the front end surface of the push-in convex portion is disposed radially outside the outer peripheral surface of the outflow tube. Provides a plug for a refill container attached to the plug body. Accordingly, those who attain the above object.

  According to the plug for a refill container of the present invention, the refill container is used by being attached to the refill container, and the refill outlet of the refill container is communicated with the mouth of the refill container with a simple operation and simple force. In addition, air replacement can be facilitated, and the contents can be refilled into the refill container in a smooth and stable state.

It is a perspective view of the refill container which attached the stopper for refill containers which concerns on preferable 1st Embodiment of this invention. It is a perspective view explaining the situation where the contents to be refilled in the refill container are refilled by the refill container with the refill container stopper according to the first preferred embodiment of the present invention. (A), (b) is sectional drawing explaining the condition which refills the contents to a refill container with the refill container which attached the stopper for refill containers which concerns on preferable 1st Embodiment of this invention. . (A) is a perspective view of the stopper for a refill container according to a preferred first embodiment of the present invention, and (b) is a cross-sectional view. (A) is a perspective view of the stopper main body of the plug body for a refill container according to the first preferred embodiment of the present invention, (b) is a top view, and (c) is a bottom view. It is a perspective view of the cover body of the plug body for refill containers which concerns on preferable 1st Embodiment of this invention. (A) is a perspective view of a stopper for a refill container according to a second preferred embodiment of the present invention, and (b) is a cross-sectional view. (A) is a perspective view of a plug for a refill container according to another preferred embodiment of the present invention, and (b) is a cross-sectional view showing a state in which the plug is pushed into the neck portion of the refill container. (A) is a perspective view of a plug for a refill container according to still another preferred embodiment of the present invention, and (b) is a cross-sectional view. (A) is a perspective view of a plug for a refill container according to still another preferred embodiment of the present invention, and (b) is a cross-sectional view.

  As shown in FIGS. 1 to 3, a plug 10 for a refill container according to a first preferred embodiment of the present invention is a refill container 11, for example, a mouthpiece 12 (FIG. 3A ) And (b)) are attached so as to cover the refill outlet 12a by the tip opening.

  Further, the refill container stopper 10 of the first embodiment is integrally fixed to the mouth part 12 of the refill container 11 in a state where the refill outlet 12a is sealed. By being pushed into the neck part 16 of the refill container 15 together with the mouth part 12 of the refill container 11, the refill outlet 12 a is communicated with the neck part 16 of the refill container 15 by a simple operation of one action. The refill outlet 12a is provided with a function so that air replacement between the refill container 15 and the outside air and air replacement between the refill container 15 and the refill container 11 can be easily performed. To the refill container 15 without causing the content liquid to overflow or leak outside.

  The refill container stopper 10 according to the first embodiment covers a refill outlet 12a formed by opening the front end of the mouth 12 for refilling the contents of the refill container 15, for example. As shown in FIGS. 4 (a) and 4 (b), a plug body 17 that is attached to the replacement container 11 and fixed to the peripheral edge of the opening of the refill outlet 12a. An outflow opening 17b formed in the top plate 17a of the main body 17 is closed from the inner side in the outflow direction, and includes a plug lid 18 that is detachably attached to the plug main body 17. The stopper body 17 surrounds the outflow opening 17b and protrudes outward from the top plate 17a in the outflow direction, and the outlet body 17c surrounds the outflow tube 17c and protrudes out of the top plate 17a in the outflow direction. A cylindrical outer wall 20 having an inner diameter substantially the same as the outer diameter of the neck portion 16, a mounting cylinder 17 d that surrounds the outflow opening 17 b and protrudes inward in the outflow direction from the top plate 17 a, and the plug body 17 has an outflow An insertion port 19 is formed in the top plate 17a so as to be adjacent to the outer side in the radial direction of the cylinder 17c. The outer peripheral surface of the outflow cylinder 17c, the outer peripheral surface of the mounting cylinder 17d, and the inner peripheral surface of the cylindrical outer wall 20 An outside air communication port 25 is formed in the top panel 17 so as to open in the area between them. The plug lid 18 includes a mounting wall surface portion 18a whose outer peripheral surface is in close contact with the inner peripheral surface of the mounting cylinder 17d, a closing plate portion 18b having a planar shape similar to the hollow cross-sectional shape of the mounting cylinder 17d, and a peripheral edge of the closing plate portion 18b. And a pressing projection 18c standing from the portion. The pushing convex portion 18c is protruded outward from the top plate 17a along the outflow tube 17c through the insertion port 19, and at least a part of the front end surface 18d of the pushing convex portion 18c is an outer peripheral surface of the outflow tube 17c. The plug lid 18 is mounted so as to be fitted into the plug main body 17 in a state of being arranged on the outer side in the radial direction.

  As shown in FIGS. 3 (a) and 3 (b), when refilling the contents, the inner peripheral surface of the cylindrical outer wall 20 is aligned with the outer peripheral surface of the mouth 16 of the refill container 15 so as to pack the contents. By pushing the stopper 10 attached to the replacement container 11 toward the refill container 15, a push-in convex part 18 c (FIG. 15) in which the end surface part of the mouth 16 of the refill container 15 is in contact with the tip surface 18 d. 3 (a)) is pushed out into the refill container 11, and the stopper lid 18 is removed from the mounting cylinder 17d (see FIG. 3 (b)), so that the outflow opening 17b is opened, and the contents For example, a liquid such as a liquid detergent is allowed to flow from the refill container 11 into the refill container 15 and the refill container 15 and the refill container 15 are filled through the insertion port 19 after the pushing projection 18c is pushed out. When air replacement with the replacement container 11 is performed To, via the outside air communication port 25, so that the air displacement between the refill container 15 and the outside air is performed.

  Further, in the refill container stopper 10 of the first embodiment, as shown in FIG. 4A, the outflow cylinder 17c includes at least a portion in the vicinity of the portion where the pushing projection 18c projects and both sides of the portion. The portion is an outer peripheral shape portion 26 having an outer peripheral shape along the inner peripheral shape of the mouth 16 of the refill container 15, and the refilling is performed between the outer peripheral shape portion 26 and the cylindrical outer wall 20. An interval larger than the wall thickness of the mouth 16 of the container 15 is maintained.

  The plug 10 for a refill container according to the first embodiment is a molded product using, for example, a synthetic resin such as polypropylene or polyethylene, or a bioplastic such as polylactic acid. As shown in FIG. 2, the two parts formed of a plug body 17 and a plug lid 18 are preferably formed by an injection molding method.

  As shown in FIGS. 5A to 5C, the plug body 17 constituting the refill container stopper 10 includes a disk-shaped top plate 17a having an outflow opening 17b formed therein, and a top plate 17a. The outflow cylinder 17c and the cylindrical outer wall 20 provided to protrude upward from the upper surface, which is the outer surface in the outflow direction, and the lower surface, which is the inner surface in the outflow direction, of the top plate 17a. 17d, and is integrally formed including a fixed skirt portion 22 provided to project downward from the lower surface of the top plate 17a.

  In the first embodiment, the fixed skirt portion 22 is a cylindrical portion having an outer diameter smaller than the diameter of the disk-shaped top plate 17a, and is inscribed in the peripheral portion of the top plate 17a. The center position of the top plate 17a is integrally formed with the top plate 17a with the center position shifted to one side from the center position of the top plate 17a. Female threaded ridges 22a (see FIG. 4B) and engaging ribs are formed on the inner peripheral surface of the fixed skirt portion 22, and these female threaded ridges 22a and the engaging ribs are connected to a refill container. 11 is engaged with a male threaded ridge or a rib to be engaged (not shown) formed on the outer peripheral surface of the neck portion 12, so that the plug body 17 can be refilled in a refilling container according to a screwing type or a fitting type. 11 is mounted and fixed on the neck portion 12 (see FIG. 1).

  In the first embodiment, the outflow opening 17b formed in the top plate 17a is a substantially circular opening, and is disposed in the center portion of the top plate 17a. The outflow opening 17b has a shape in which the peripheral edge of the opening is constricted inward by a constricted portion 24 of the outflow cylinder 17c, which will be described later, on the side where the center position of the fixed skirt portion 22 is shifted, and the outflow cylinder 17c. On the side opposite to the outflow opening 17b across the constricted portion 24, an insertion port 19 having a substantially rectangular opening shape is formed in the top plate 17a adjacent to the radially outer side of the outflow tube 17c. When the plug lid 18 is attached to the plug main body 17, the pushing projection 18 c of the plug lid 18 is inserted into the insertion port 19.

  In the first embodiment, the outflow cylinder 17c provided so as to protrude upward from the top surface of the top plate 17a so as to surround the substantially circular outflow opening 17b includes a small-diameter arc-shaped portion 27a and a large-diameter arc-shaped portion having different curvature radii. 27b and the constricted part 24 have a flat cylindrical shape that is continuous. The small-diameter arc-shaped portion 27a forms a portion in the vicinity of the constricted portion 24, which is a portion from which the pushing projection 18c of the stopper lid 18 protrudes, and both side portions thereof, and is the same as the inner diameter of the neck 16 of the refill container 15 The outer peripheral shape portion 26 having an outer peripheral shape along the inner peripheral shape of the neck 16 of the refill container 15 is provided. The large-diameter arc-shaped portion 27b is connected to the ends of the small-diameter arc-shaped portions 27a on both sides of the constricted portion 24 on the opposite side to the constricted portion 24. A region for forming an outside air communication port 25 is held between the outer cylindrical outer wall 20 and the outside.

  In the first embodiment, since the neck 16 of the refill container 15 has a cylindrical shape (see FIG. 2), the cylindrical outer wall 20 has an outer peripheral shape of the mouth 16 of the refill container 15. Is a cylindrical portion having an inner diameter substantially the same as the outer diameter of the mouth neck 16 of the refill container 15. The cylindrical outer wall 20 has an outer diameter smaller than the diameter of the disk-shaped top plate 17a, and the center position of the cylindrical outer wall 20 is shifted from the center position of the top plate 17a. In a state of being shifted to the opposite side, the inner periphery of the top plate 17a is inscribed in the peripheral portion of the top plate 17a so as to surround the periphery of the outflow tube 17c and the insertion port 19 and is integrally formed with the top plate 17a.

  In the first embodiment, the mounting cylinder 17d continuously surrounds the substantially circular outlet opening 17b and the substantially rectangular insertion opening 19 provided adjacent to the radially outer side of the outlet cylinder 17c. It is a substantially cylindrical portion provided to project downward from the lower surface of the face plate 17a (see FIG. 5C). The mounting cylinder 17d is disposed concentrically with the fixed skirt portion 22 and is integrally formed with the top plate 17a. As a result, the outflow cylinder 17c and the mounting cylinder 17d are provided on the upper surface side and the lower surface side of the top plate 17a so as to have different sizes and shapes with different center positions.

  In the first embodiment, an opening is formed in the top plate 17, and the outside air communication port 25 is provided independently of the outflow opening 17 b and the insertion port 19. In the first embodiment, the outside air communication port 25 is arranged along the inner peripheral surface of the base end portion of the cylindrical outer wall 20 provided on the upper surface side of the top plate 17 at a position facing the insertion port 19 in the radial direction, and Along the outer peripheral surface of the base end portion of the fixed skirt portion 22 provided on the lower surface side of the top surface plate 17, a region that is sandwiched between the cylindrical outer wall 20 and the fixed skirt portion 22 is extended in a strip shape that is curved in an arc shape. Is provided. As a result, the outside air communication port 25 is formed in the top plate 17 in a region between the outer peripheral surface of the outflow tube 17 c and the outer peripheral surface of the mounting tube 17 d and the inner peripheral surface of the cylindrical outer wall 20.

  Furthermore, in the first embodiment, a passage outer wall 28 that extends downward from the cylindrical outer wall 20 along the outer peripheral surface of the fixed skirt portion 22 to form an air flow passage communicating with the outside air communication port 25 is provided. Is provided. The passage outer wall 28 has a band-shaped hollow cross-sectional shape that is curved in an arc shape, similar to the outside air communication port 25.

  As shown in FIGS. 4 (a), 4 (b) and 6, the plug lid 18 constituting the refill container plug body 10 is mounted so that its outer peripheral surface is in close contact with the inner peripheral surface of the mounting cylinder 17d of the plug body 17. It consists of a wall surface portion 18a, a blocking plate portion 18b having a planar shape similar to the hollow cross-sectional shape of the mounting cylinder 17d, and a pushing convex portion 18c erected upward from the peripheral portion of the blocking plate portion 18b. In the first embodiment, the mounting wall surface portion 18a is formed by the outer peripheral surface of a flat cylindrical portion 18e having an outer diameter similar to the inner diameter of the cylindrical mounting tube 17d. The blocking plate portion 18b is formed by a circular plate-shaped portion that is integrally formed so as to cover the upper opening end surface that is the outer surface in the outflow direction of the cylindrical portion 18e. The pushing projection 18c is formed by a quadrangular prism portion that is integrally formed so as to stand upward from the peripheral portion of the circular plate-like blocking plate portion 18b and outward in the outflow direction.

  The stopper lid 18 has the pressing projection 18c and the blocking plate portion 18b facing outward in the outflow direction, and the insertion projection 19c is inserted through the insertion port 19 formed in the top plate 17b from the inner side in the outflow direction of the plug body 17. By being pushed into the mounting cylinder 17d of the plug body 17, the mounting wall surface portion 18a formed by the outer peripheral surface of the cylindrical portion 18e is firmly fitted into the inner peripheral surface of the mounting cylinder 17d, and is fitted into the mounting cylinder 17d. The plug body 17 is integrally mounted. Further, by this, the plug lid 18 causes the pushing convex portion 18c inserted through the insertion port 19 to protrude outward from the top plate 17b along the outflow tube 17c in the outflow direction, and the substantially rectangular tip of the pushing convex portion 18c. The plug body 17 is integrally mounted with a substantially half portion of the surface 18d arranged radially outside the outer peripheral surface of the outflow cylinder 17c.

  Here, in the first embodiment, the plug lid 18 is attached to the plug body 17 integrally with the pushing projection 18 c protruding at a height lower than the tip of the outflow tube 17 c of the plug body 17. The pushing protrusion 18c protrudes at a height lower than the tip of any one of the outflow cylinder 17c, the cylindrical outer wall 20 and the guide inner wall 21, which will be described later. When the tip of the container stopper 10 collides with the floor surface or the like, the load at the time of collision is received by the outflow cylinder 17c, the cylindrical outer wall 20, or the guide inner wall 21, so that the load at the time of collision is passed through the pushing protrusion 18c. Therefore, it is possible to effectively avoid transmission to the plug lid 18. Accordingly, it is possible to effectively prevent the plug lid 18 from being detached from the mounting cylinder 17d due to the plug lid 18 being carelessly moved with respect to the plug body 17, and the content liquid flowing out. At the same time, it is possible to effectively prevent the content liquid from flowing out by intentionally pushing the pushing-in portion of the plug lid when it is displayed at the store and being unsealed.

  Moreover, it is preferable that the stopper lid 18 is made of a material having a specific gravity lower than that of the refill content liquid stored in the refill container 11. Since the plug lid 18 is made of a material having a specific gravity lower than that of the contents liquid, when the contents are refilled, the refill container 11 is turned upside down and the refill container stopper 10 is replaced with the refill container 15. The plug lid 18 pushed out into the refilling container 11 after being dropped from the mounting cylinder 17d by being pushed inward is moved upward by the action of buoyancy due to the contained content liquid, and thus pushed out. It is possible to effectively prevent the outflow of the content liquid through the outflow opening 17b by the stopper lid 18 from being obstructed.

  In the refill container plug 10 of the first embodiment having the above-described configuration, the plug lid 18 is attached to the mounting cylinder 17d from the inside in the outflow direction, thereby closing the outflow opening 17b and the plug lid 18 being the plug main body. 17 is used by joining and fixing to the mouth portion 12 of the refill container 11 through the fixing skirt portion 22 of the plug body 17 in a state of being integrally attached to the plug body 17 (see FIGS. 1 to 3).

  And according to the plug body 10 for the refill container of this 1st Embodiment, it attaches to the mouth part 12 of the refill container 11, and is used, and the mouth part of the refill container 11 by simple operation and simple force. The refill outlet 12a at the tip of the twelve can be communicated with the neck 16 of the refill container 15 and the air can be easily replaced to refill the contents smoothly and stably. The container can be refilled.

  That is, according to the first embodiment, the refill container plug 10 includes the plug main body 17 and the plug lid 18, and the plug main body 17 surrounds the outflow opening 17 b from the top plate 17 a in the outflow direction. An outflow cylinder 17c projecting in the outflow direction, a cylindrical outer wall 20 surrounding the outflow cylinder 17c and projecting outward from the top surface plate 17a, and a mounting cylinder 17d surrounding the outflow opening 17b and projecting inward from the top surface plate 17a in the outflow direction The plug body 17 includes an insertion port 19 formed in the top plate 17a so as to be adjacent to the radially outer side of the outflow tube 17c, and the outer peripheral surface of the outflow tube 17c and the outer peripheral surface of the mounting tube 17d. And an outside air communication opening 25 formed in the top plate 17 in a region between the cylindrical outer wall 20 and the inner peripheral surface, and the plug lid 18 is attached to the inner peripheral surface of the mounting cylinder 17d. 18a and closing plate portion 18b A pressing projection 18c erected from the closing plate portion 18b, the pressing projection 18c projecting from the top plate 17b along the outflow tube 17c to the outside in the outflow direction through the insertion port 19, and A part of the tip end surface 18d of the pushing convex portion 18c is arranged on the radially outer side with respect to the outer peripheral surface of the outflow cylinder 17c.

  Therefore, according to the refill container stopper 10 of the first embodiment, as shown in FIG. 2 and FIGS. 3A and 3B, for example, in the inverted state in which the mouth 12 is disposed downward, While holding the replacement container 11, the stopper 10 attached to the refill container 11 is covered with the inner peripheral surface of the cylindrical outer wall 20 along the outer peripheral surface of the mouth 16 of the refill container 15. A pushing projection 18c in which the end face portion of the mouth 16 of the refill container 15 is in contact with the tip face 18d by a simple operation and a simple force of a series of one-actions that are simply pushed toward the refilling container 15. Is pushed out into the refill container 11 and the stopper lid 18 is dropped from the mounting cylinder 17d, so that the outflow opening 17b can be easily opened. This also allows the refill outlet 12a of the refill container 11 to be easily communicated with the neck 16 of the refill container 15 through the opened outlet opening 17b, and the cylindrical outer wall. Since the outflow cylinder 17c is inserted into the neck part 16 of the refill container 15 with the inner peripheral surface of 20 aligned with the outer peripheral surface of the neck part 16 of the refill container 15, the refill container 11 and the refill container 11 It is possible to refill the content liquid from the refill container 11 to the refill container stopper 10 in a state where the replacement container stopper 10 is stabilized with respect to the refill container 15.

  Furthermore, when the content liquid is caused to flow from the refill container 11 into the refill container plug 10, the refill is refilled through the insertion port 19 after the pushing projection 18 c is pushed into the refill container 11. Air replacement between the container 15 and the refill container 11 is performed, and air replacement between the refill container 15 and the outside air is performed via the outside air communication port 15 formed separately from the insertion port 19. Therefore, the air replacement is easily performed, and the content liquid is smoothly transferred from the refill container 11 to the refill container stopper 10 without overflowing or leaking outside. It becomes possible to flow into.

  Furthermore, according to the first embodiment, the outflow tube 17c has at least the vicinity of the portion from which the pushing projection 18c protrudes and both side portions of the vicinity of the inner periphery of the mouthpiece 16 of the refill container 15. The outer peripheral shape portion 26 has an outer peripheral shape along the shape, and a gap larger than the wall thickness of the mouth portion 16 of the refill container 15 is maintained between the outer peripheral shape portion 26 and the cylindrical outer wall 20. Therefore, when refilling the contents, the outer peripheral shape portion 26 is guided along the inner peripheral surface of the mouth 16 of the refill container 15 to guide the inner peripheral surface of the cylindrical outer wall 20. The operation of pushing the refill container stopper 10 toward the refill container 15 while being along the outer peripheral surface of the neck 16 of the refill container 15 can be performed in a more stable state, and the refill is refilled. The end face of the mouth 16 of the container 15 is a stopper 18 so as to securely abut against the front end surface 18d of the pushing convex portion 18c of, it is possible to guide more smoothly. In addition, a space slightly larger than the wall thickness of the mouth 16 of the refill container 15 is preferably maintained between the outer peripheral shape portion 26 and the inner peripheral surface of the cylindrical outer wall 20. The operation of inserting the mouth 16 of the refill container 15 into the portion and pushing the plug 10 for the refill container toward the refill container 15 can be performed in a more stable state. It is possible to guide more smoothly so that the end surface portion of the neck portion 16 of the refill container 15 is surely brought into contact with the distal end surface 18d of the pushing convex portion 18c of the plug lid 18.

  FIGS. 7A and 7B show a refill container stopper 30 according to a second preferred embodiment of the present invention. The plug container 30 for the refill container according to the second embodiment has substantially the same configuration as the plug container 10 for the refill container according to the first embodiment, while the outflow tube and the insertion port are the same as those of the first container. It is different from that of the refill container stopper 10 of the embodiment. In the second embodiment, the same components as those of the refill container stopper 10 of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted.

  In the refill container plug 30 of the second embodiment, the outflow tube 17c ′ is provided so as to stand from the opening peripheral edge of the outflow opening 17b ′ and to have the same inner diameter as the outflow opening 17b ′. It has been. Further, in the second embodiment, the insertion port 19 ′ through which the pushing projection 18c ′ of the plug lid 18 ′ is inserted is continuous with the opening peripheral edge of the outflow opening 17b ′ and extends radially outward of the outflow tube 17c ′. Notched and formed. Furthermore, in the second embodiment, the outflow tube 17c ′ is provided in a state where a portion intersecting the insertion port 19 ′ is cut out as the dividing portion 23, and the pushing convex portion 18c of the outflow tube 17c ′ is provided. The guide inner wall 21 having the outer peripheral shape portion 21a along the inner peripheral shape of the mouth neck portion 16 of the refill container 15 so as to circumscribe the protruding portion 23 which is a protruding portion is the outflow direction from the top plate 17a ′. It protrudes outward and is provided on the plug body 17 '. Furthermore, in the second embodiment, the plug lid 18 ′ has a cylindrical shape in which the mounting wall surface portion 18 a ′ is hollow, and the closing plate portion 18 b ′ is in the outflow direction of the mounting wall surface portion 18 a ′. By closing the inner portion, the mounting wall surface portion 18a ′ and the closing plate portion 18b ′ form a concave shape that opens toward the outside in the outflow direction.

  Also by the refill container plug 30 of the second embodiment, a series of one-action simple operations in which the plug 30 attached to the refill container 11 is pushed into the refill container 15. The outflow opening 17b ′ can be easily opened by pushing the pushing projection 18c ′ into the refill container 11 and dropping the stopper lid 18 ′ from the mounting cylinder 17d ′. The same effect as the plug container 10 for a refill container is obtained. Further, the outer peripheral portion 21a of the guide inner wall 21 can function in the same manner as the outer peripheral portion 26 of the outflow tube 17c of the first embodiment. Further, since the mounting wall surface portion 18a ′ and the blocking plate portion 18b ′ of the stopper lid 18 ′ form a concave shape that opens outward in the outflow direction, the stopper lid 18 ′ is pushed out into the refill container 11. In this case, since air is held in the concave shape of the blocking plate portion 18b ′, the air is not only buoyant by the content liquid but also buoyant by the air, so that the outflow of the content liquid is hindered. Can be more effectively avoided.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the content to be refilled from the refill container to the refill container using the plug for the refill container does not necessarily need to be a content liquid such as a liquid detergent, and other fluids such as powders It may be the contents. In addition, it is not always necessary to use a plug for a refill container attached to the neck of a bottle-shaped refill container, and various refill containers formed of other soft packaging materials such as pouches and gusset bags. It can also be used by covering the refill outlet. The refill container does not have to be provided with the mouth portion. Furthermore, the plug for the refill container can be attached to the refill container as a single unit by covering the refill outlet by seal bonding or the like without using the fixed skirt portion.

  Moreover, the outflow tube and the mounting tube may be a cylindrical portion having a hollow cross-sectional shape other than a circle, and the outflow opening of the plug body and the closing plate portion of the plug lid do not have a circular planar shape. Also good. The wall surface of the plug lid does not need to have a hollow cylindrical shape. For example, the closure plate can be formed by thickening the closure plate and bringing the outer peripheral surface into close contact with the inner peripheral surface of the mounting cylinder. You may make it give a function as a mounting | wearing wall surface part to a part. The pushing convex portion standing from the peripheral portion of the blocking plate portion is not necessarily a quadrangular column portion, and may be a columnar portion or a cylindrical portion having another shape. The entire tip surface of the indentation convex portion may be disposed radially outside the outer peripheral surface of the outflow tube. The shape of the top plate is not necessarily circular, and may be any shape such as a rectangle.

  In each of the above-described embodiments, as shown in FIGS. 8A and 8B, a position correction rib 90 is provided that protrudes inward from the inner surface of the cylindrical outer wall 20 and preferably has an inclined inner surface. You can also. When the plug 10 for the refill container is positioned and pushed into the mouth 16 of the container to be refilled, for example, the inclined surface of the position correction rib 90 rides on the outer peripheral surface of the mouth 16, thereby extending along the outflow cylinder 17 c. It is possible to guide the pushing convex portion 18c of the plug lid 18 thus projected to the distal end side of the mouth portion 16. This makes it possible to open the outflow opening more easily by making the pushing convex part 18c of the plug lid 18 abut the tip of the mouth neck part 16 reliably and dropping the plug lid 18 from the mounting cylinder 17d. Become.

  Further, as shown in FIGS. 9A and 9B and FIGS. 10A and 10B, the position correction rib 90 is formed by providing cuts 91 on both sides of the position correction rib 90. The plug body 17 may be provided in a state of being erected in a leaf spring shape from the top plate 17a. Thus, for example, even when a male thread ridge is formed on the outer peripheral surface of the mouth portion of the refill container and the position correcting rib 90 is easily interfered with, the position correcting rib 90 is elastically deformed outward. Thus, it becomes possible to avoid interference. Further, since the position correcting rib 90 is elastically deformed outward, an inward elastic biasing force is generated, so that it is possible to accurately guide the pushing convex portion 18c to the tip side of the mouth portion of the refill container. . As a result, the refilling operation can be performed more smoothly.

10, 30 Refill container plug 11 Refill container 12 Refill container mouth 12a Refill outlet 15 Refill container 16 Refill container mouth 17 Plug body 17a Top plate 17b, 17b 'Outflow opening 17c, 17c 'Outflow cylinder 17d Mounting cylinder 18, 18' Plug lid 18a, 18a 'Mounting wall surface part 18b, 18b' Closure plate part 18c, 18c 'Pushing projection 18d Pushing projection tip surface 19, 19' Insertion port 20 Cylindrical outer wall 21 Gait inner wall 21a Peripheral shape portion 22 Fixed skirt portion 22a Female thread ridge 23 Dividing portion 24 Constricted portion 25 Open air communication port 26 Outer peripheral shape portion 27a Small diameter arc portion 27b Large diameter arc portion 28 Path outer wall 90 Position correction rib 91 Notch

Claims (9)

A refill container plug that covers the refill outlet of the refill container for refilling the contents of the refill container,
A plug body that is bonded and fixed to the peripheral edge portion of the opening of the refill outlet, and a plug that is detachably mounted on the plug body by closing the outflow opening formed in the top plate of the plug body from the inside in the outflow direction. A lid,
The stopper body surrounds the outflow opening and protrudes outward from the top plate in the outflow direction, and the mouth portion of the refill container that surrounds the outflow tube and protrudes out of the top plate from the top surface in the outflow direction. A cylindrical outer wall having an inner diameter that is substantially the same as the outer diameter, and a mounting cylinder that surrounds the outflow opening and protrudes inward in the outflow direction from the top plate,
The stopper body is adjacent to the outer side in the radial direction of the outflow tube, or is inserted into the top plate, or continuously from the peripheral edge of the outflow opening to the outer side in the radial direction of the outflow tube. The face plate is provided with a notch formed in the notch, and an opening is formed in the top plate in a region between the outer peripheral surface of the outflow tube and the outer peripheral surface of the mounting tube and the inner peripheral surface of the cylindrical outer wall. It has an open air communication port,
The plug lid includes a mounting wall surface portion whose outer peripheral surface is in close contact with the inner peripheral surface of the mounting tube, a closing plate portion having a planar shape similar to the hollow cross-sectional shape of the mounting tube, and a peripheral portion of the closing plate portion It has a push-in projection that stands upright,
The pushing convex portion protrudes outward in the outflow direction along the outflow tube from the top plate through the insertion port, and at least a part of the front end surface of the pushing convex portion from the outer peripheral surface of the outflow tube. A plug body for a refill container in which the plug lid is mounted on the plug body in a state where the plug lid is arranged on the radially outer side.   When refilling the contents, the inner peripheral surface of the cylindrical outer wall is aligned with the outer peripheral surface of the mouth portion of the refill container, and the plug attached to the refill container is replaced with the refill By pushing in toward the container, the pushing convex portion whose end face is in contact with the end face of the refill container is pushed into the refill container, and the stopper lid is attached to the mounting cylinder. By dropping from the above, the outflow opening is opened, the contents are allowed to flow from the refill container into the refill container, and the push-in convex portion is pushed out through the insertion opening. 2. The filling according to claim 1, wherein air replacement is performed between the refill container and the refill container, and air replacement is performed between the refill container and the outside air through the outside air communication port. Replacement container plug.   In the outflow cylinder, at least a portion near the portion from which the pushing protrusion protrudes and both side portions of the portion are outer peripheral portions along the inner peripheral shape of the mouth portion of the refill container, The plug for a refill container according to claim 1 or 2, wherein a gap larger than a wall thickness of a neck portion of the refill container is maintained between an outer peripheral shape portion and the cylindrical outer wall.   A guide inner wall having an outer peripheral shape portion along the inner peripheral shape of the mouth portion of the refill container is arranged in the outflow direction outward from the top plate so as to circumscribe the protruding protrusion of the outflow cylinder. The plug body for a refill container according to claim 1 or 2, wherein the plug body is provided on the plug body so as to protrude from the top.   5. The plug lid is attached to the plug main body by causing the pushing convex portion to protrude at a height lower than the tip of any one of the outflow cylinder, the cylindrical outer wall, and the guide inner wall. The plug for a refill container according to any one of the above.   The plug for a refill container according to any one of claims 1 to 5, wherein the plug lid is made of a material having a specific gravity lower than that of the contents.   The mounting wall surface portion of the plug lid has a hollow cylindrical shape, and the closing plate portion of the plug lid closes the inner portion in the outflow direction of the mounting wall surface portion. And the said obstruction board part is the stopper for refill containers of any one of Claims 1-6 which has formed the concave shape opened toward the outflow direction outer side.   The plug body for a refill container according to any one of claims 1 to 7, wherein a position correcting rib is provided at a position facing the indentation convex portion so as to protrude inward from an inner side surface of the cylindrical outer wall. It is the refilling method of the contents from the refilling container to the refilling container using the plug for refilling containers of any one of Claims 1-8 , Comprising: The outer peripheral surface or inner peripheral surface of the said outflow cylinder Is pushed along the mouth of the refill container, and the plug attached to the refill container is pushed toward the refill container, so that the mouth of the refill container is inserted into the front end surface. The pushing convex part with which the end surface part of the neck abuts is pushed out into the refill container, and the stopper lid is dropped from the mounting cylinder, so that the outflow opening is opened and the contents are removed. A method for refilling contents to be introduced from a refill container into the refill container.

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