CN117580773A - Plug for refill container and refill container provided with same - Google Patents

Abstract

The stopper for a refill container of the present invention includes a stopper main body (10) and a stopper cover (20). The stopper cover (20) seals the outflow opening formed in the top plate (12) of the stopper body from the inside in the outflow direction. Detachably mounted on the bolt body (10). The plug main body (10) has an outflow tube (11), a cylindrical outer wall (13) and an installation tube (15). The space between the outflow tube (11) and the cylindrical outer wall (13) has a top plate (12) formed on it. Open insertion port (16). The plug cover (20) has a mounting wall surface (27), a blocking plate portion (23), and a press-fit convex portion (26) standing up from the peripheral edge portion of the blocking plate portion (23). In a state where the press-fit convex portion (26) protrudes from the top plate (12) to the outside in the outflow direction (V) through the insertion opening (16) at the space between the outflow cylinder (11) and the cylindrical outer wall (13). , the bolt cover (20) is installed on the bolt body (10).

Description

Stopper for refill container and refill container having the same

Technical field

The present invention relates to a stopper for a refill container and a refill container having the stopper.

Background technique

Liquid lotions, shampoos, etc. are generally stored in containers and distributed. From the viewpoint of reducing environmental burden, a refill container for refilling the refilled container with contents such as liquid lotion can be used. By using the refill container, the refilled container can be used for a long time without discarding the refilled container.

The refilling operation of the contents in the refill container is performed by connecting the mouth and neck portion of the refill container with the outflow port of the contents to the mouth and neck portion of the container to be refilled. From the viewpoint of making this refill operation easier, the applicant has previously proposed a plug for a refill container that is installed to cover the refill outlet of the refill container (for example, Patent Document 1 and Patent Document 2).

The stopper for a refill container in Patent Document 1 includes: a stopper main body having an outflow tube and an installation tube; and a stopper cover having an installation wall surface in close contact with the inner peripheral surface of the installation tube, a sealing plate part, and a press-fit The convex portion is made to protrude outward in the outflow direction through an insertion opening cut from the opening peripheral portion of the outflow opening to the radial outer side of the outflow tube, and the press-fit convex portion is The plug cover is attached to the plug main body in a state where a part of the front end surface is disposed radially outward of the outer peripheral surface of the outflow tube.

The stopper for a refill container in Patent Document 2 includes: a stopper main body having an outflow tube, a cylindrical outer wall, and an installation tube; and a stopper cover having an installation wall surface and a sealing surface in close contact with the inner peripheral surface of the installation tube. The plate portion and the press-fit convex portion are formed by causing the press-fit convex portion to protrude outward in the outflow direction from the top plate of the plug body and disposing a part of the front end surface of the press-fit convex portion farther from the outer circumference of the outflow tube. The plug cover can be attached to the plug body at a position facing the radially outer side, and the air can be replaced during refilling through the insertion port and the external air communication port after the press-fit convex portion is pushed out.

existing technical documents

patent documents

Patent Document 1: Japanese Patent No. 6183846

Patent Document 2: Japanese Patent No. 6183847

Contents of the invention

The present invention provides a stopper for a refill container, which is used to refill contents into a refilled container having a mouth and neck, and is installed to cover a refill outlet of the refill container.

In one embodiment, it is preferable that the stopper for a refill container includes: a stopper main body that is joined and fixed to the opening peripheral portion of the refill outlet; and a stopper that blocks (blocks) the outflow direction from the inside. ) An outflow opening is formed on the top plate of the plug body and is detachably attached to the plug body.

In one embodiment, it is preferable that the plug main body has: an outflow tube surrounding the outflow opening and protruding outward in the outflow direction from the top plate; and a cylindrical outer wall arranged concentrically with the outflow tube. , and surrounds the outflow cylinder, protrudes outward in the outflow direction from the top plate, and has an inner diameter corresponding to the outer diameter of the mouth and neck of the refilled container; and an installation cylinder that is concentric with the outflow cylinder It is arranged in a shape, surrounds the outflow tube, and protrudes inward in the outflow direction from the top plate.

In one embodiment, it is preferable that the plug main body has an insertion opening that forms an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall.

In one embodiment, it is preferable that the plug cover has: a mounting wall portion whose outer peripheral surface is in close contact with the inner peripheral surface of the mounting cylinder; and a blocking plate portion that has a hollow cross-sectional shape consistent with the mounting cylinder. The same planar shape; and a press-fit convex portion standing up from the peripheral portion of the blocking plate portion.

In one embodiment, it is preferable that in the refill container stopper, the press-fit convex portion is inserted from the top through the insertion opening at a space between the outflow tube and the cylindrical outer wall. The face plate protrudes outward in the outflow direction, and the plug cover is attached to the plug body.

Furthermore, the present invention provides a refill container for refilling contents into a refilled container having a mouth and neck.

In one embodiment, it is preferable that the refill container has a stopper for a refill container installed to cover the refill outlet, and the stopper for the refill container includes a stopper body that is joined and fixed to the refill outlet. an opening peripheral portion of the outflow port; and a plug cover that blocks the outflow opening formed in the top plate of the plug body from the inside in the outflow direction and is detachably mounted on the plug body.

In one embodiment, it is preferable that the plug main body has: an outflow tube surrounding the outflow opening and protruding outward in the outflow direction from the top plate; and a cylindrical outer wall arranged concentrically with the outflow tube. , and surrounds the outflow cylinder, protrudes from the top plate to the outside in the outflow direction, and has an inner diameter substantially the same as the outer diameter of the mouth and neck of the refilled container; and an installation cylinder, which is connected to the outflow cylinder. It is arranged concentrically, surrounds the outflow tube, and protrudes inward in the outflow direction from the top plate.

In one embodiment, it is preferable that the plug main body has an insertion opening that forms an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall.

In one embodiment, it is preferable that the plug cover has: a mounting wall portion whose outer peripheral surface is in close contact with the inner peripheral surface of the mounting cylinder; and a blocking plate portion that has a hollow cross-sectional shape consistent with the mounting cylinder. The same planar shape; and a press-fit convex portion standing up from the peripheral portion of the blocking plate portion.

In one embodiment, it is preferable that in the plug body for a refill container, the push-in convex portion is inserted from the top through the insertion opening at a space between the outlet tube and the cylindrical outer wall. The face plate protrudes outward in the outflow direction, and the plug cover is attached to the plug body.

Description of the drawings

FIG. 1 is a front view showing an embodiment of the refill container of the present invention.

FIG. 2 is a cross-sectional view along the outflow direction showing the mouth and neck of the refill container in FIG. 1 and the refill container stopper attached to cover the outlet of the mouth and neck.

Fig. 3 is a perspective view of the stopper for the refill container of Fig. 2 as viewed from the outside in the outflow direction.

FIG. 4 is a perspective view of a cap included in the refill container cap of FIG. 3 when viewed from outside in the outflow direction.

FIG. 5 is a cross-sectional perspective view of the stopper main body included in the stopper for the refill container of FIG. 3 when viewed from the outside in the outflow direction.

FIG. 6 is a cross-sectional perspective view of the stopper main body included in the stopper for the refill container of FIG. 3 when viewed from the inside in the outflow direction.

FIG. 7 is a perspective view of the stopper main body included in the stopper for the refill container of FIG. 3 when viewed from the inside in the outflow direction.

8 is a perspective view for explaining a refilling operation of refilling the refilled container with contents using the refill container of FIG. 1 .

FIG. 9 is a diagram equivalent to FIG. 4 showing another embodiment of the stopper cap of the present invention.

10 is a diagram showing another embodiment of the stopper for a refill container of the present invention. (a) of FIG. 10 is a cross-sectional view showing the mouth and neck of a refill container having the stopper for a refill container. FIG. (b) of 10 is a cross-sectional view showing the neck portion of the mouth during the refilling operation.

Detailed ways

In the refilling operation, the mouth and neck of the refilling container are directed downward, and the refilling container is placed in an inverted state. When refilling is performed in an inverted state, it is generally time-consuming and laborious to align the openings and necks of the refill container and the container to be refilled with each other, and it is necessary to support both the refill container and the container to be refilled, so there is a problem It tends to be difficult to refill the contents efficiently. In addition, when refilling is performed by arranging an inverted refill container above the container to be refilled, usually one or both of the container to be refilled and the refill container will easily fall over, so there is a possibility that this will cause It tends to be difficult to achieve stable filling of contents. The technologies described in Patent Documents 1 and 2 have room for improvement in terms of efficiency and stability when filling contents during the refilling operation.

The present invention relates to a stopper for a refill container that can efficiently and stably fill the contents during a refilling operation and prevent leakage of the contents, and a refill container having the same.

Hereinafter, the present invention will be described based on preferred embodiments of the present invention with reference to the drawings. FIG. 1 shows an embodiment of the refill container of the present invention. The refill container 5 of this embodiment is a refill container that contains contents such as lotion and lotion inside and is used for refilling the contents into a container to be refilled.

The refill container 5 of this embodiment is a thin-walled bottle-shaped container, and includes: a main body 2 having a bottom; a mouth and neck 4 having a refill outlet for discharging the contents; and a portion between the mouth and neck 4 and the Shoulder 3 between main body 2. The refill container 5 shown in FIG. 1 is in an upright state in which the bottom of the main body 2 is grounded to a horizontal surface. In this state, the mouth and neck portion 4 is located upward in the vertical direction and is disposed facing the bottom of the main body portion 2 . The mouth and neck portion 4 is a cylindrical portion having a flow path inside for allowing contents to flow out to the outside, and has openings at both ends in the direction of the central axis. In the mouth and neck portion 4, one opening in the direction of the central axis is a refill outlet for allowing the contents to flow out. The inside of the oro-neck part 4 communicates with the inside of the shoulder part 3 via the other opening of the oro-neck part 4. As shown in FIG. 1 , in the upright state in which the refill container 5 stands on its own, the central opening on the upper side in the vertical direction of the shoulder 3 has a truncated cone-like shape that extends downward from the peripheral edge of the opening in the horizontal direction. . Furthermore, in this upright state, the main body 2 has a cylindrical peripheral wall hanging downward from the entire lower end peripheral area of the shoulder 3 and a bottom located at the lower end of the peripheral wall. The refill container 5 has an internal space defined by the shoulder part 3 and the main body part 2, and contents such as lotion and emulsion can be stored in the internal space.

The central axis direction of the refill container 5 of this embodiment matches the outflow direction V of the contents when the contents are flowed out of the container 5 . In the upright state shown in FIG. 1 , the vertical direction Z coincides with the outflow direction V of the contents in the refill container 5 . Hereinafter, the outflow direction V of the content in this specification will also be simply referred to as the "outflow direction V". The outside in the outflow direction V is also called the "front end side", and the inside in the outflow direction V is also called the "tip side".

The refill container 5 of this embodiment has the refill container stopper 1 (hereinafter also simply referred to as the "stopper 1") attached to cover the refill outlet in the mouth and neck portion 4. The stopper 1 of this embodiment is fixed to the mouth and neck 4 in a state of sealing the refill outlet of the mouth and neck 4, and has the function of sealing the mouth and neck 4 of the refill container 5 during the refilling operation. (hereinafter, also referred to as the "refill neck portion 4") is coupled to the mouth portion 7 of the container 6 to be refilled (hereinafter, also referred to as the "refill neck portion 7"), so that the refill outflow port The function of communicating with the refilled mouth and neck 7. Details of this refill operation are described below.

As shown in Figure 2, the plug body 1 includes a plug main body 10 and a plug cover 20. The plug body 10 engages the opening peripheral portion 4a of the refill outflow port fixed in the refill port neck 4, and the plug cover 20 can It is detachably mounted on the bolt main body 10 . The plug body 1 is attached to the refill port neck part 4 in a state where the plug cap 20 is attached to the plug main body 10 . Hereinafter, "the opening peripheral edge portion of the refill outflow port of the refill port neck 4" is also referred to as the "outflow port peripheral portion 4a".

As shown in FIG. 4 , the plug cap 20 has a blocking plate portion 23 , a cylindrical mounting wall portion 27 protruding outward in the outflow direction V from the peripheral edge portion of the blocking plate portion 23 , and a press-fit convex portion 26 , which stands upright toward the outside in the outflow direction V from the peripheral edge portion of the blocking plate portion 23 . In the plug cap 20 of this embodiment, a mounting wall portion 27 having the same outer diameter as that of the blocking plate portion 23 is formed on the peripheral portion of the blocking plate portion 23 except for the portion where the press-fit convex portion 26 is provided. The press-fit convex portion 26 of this embodiment protrudes outward in the outflow direction V from the mounting wall surface portion 27 (see FIG. 4 ), and is formed as a columnar portion standing upright on the blocking plate portion 23 .

As shown in FIGS. 3 and 5 , the plug main body 10 has a top plate 12 and an outflow opening 11 a formed in the top plate 12 . The plug main body 10 has an outflow tube 11 that surrounds the outflow opening 11 a and protrudes outward from the top plate 12 in the outflow direction V; and a cylindrical outer wall 13 that is arranged concentrically with the outflow tube 11 and surrounds the outflow tube 11 And protrudes outward from the top plate 12 in the outflow direction V. In other words, the outflow tube 11 is formed to surround the periphery of the outflow opening 11 a, and the cylindrical outer wall 13 surrounds the outflow tube 11 .

In addition, the inner ends of the outflow tube 11 and the cylindrical outer wall 13 in the outflow direction V are connected to a top plate 12 located between the outflow tube 11 and the cylindrical outer wall 13 .

The cylindrical outer wall 13 has an inner diameter substantially the same as the outer diameter of the refilled neck portion 7 (see FIG. 8 below). On the inner circumferential surface of the cylindrical outer wall 13 of this embodiment, a female thread ridge 13 a for screwing with the neck portion 7 of the refill port is formed. In this embodiment, the cylindrical outer wall 13 of the plug body 1 is screwed with the refilled mouth neck part 7 , and the refilling mouth neck part 4 and the refilled mouth neck part 7 are detachably coupled together via the plug body 1 .

As shown in FIGS. 3 and 5 , the plug main body 10 has an insertion opening 16 opening in the top plate 12 at a distance between the outflow tube 11 and the cylindrical outer wall 13 . The insertion opening 16 is a portion into which the press-fit convex portion 26 of the plug cover 20 is inserted (see FIG. 3 ), and is a through opening that penetrates the top panel 12 .

As shown in FIGS. 5 to 7 , the plug main body 10 of this embodiment has an insertion partition wall 18 protruding inward in the outflow direction V from the top plate 12 . The insertion partition wall 18 is a columnar portion in which a part of the peripheral portion of the insertion opening 16 protrudes inward in the outflow direction V. That is, the inner peripheral surface of the insertion opening 16 extends inward in the outflow direction V from the outflow opening 11 a of the plug main body 10 via the insertion partition wall 18 . The insertion partition wall 18 makes it easier to replace air through the insertion opening 16 than to circulate the content through the insertion opening 16, and the content can be refilled more efficiently. The insertion partition wall 18 of this embodiment is in contact with the blocking plate portion 23 of the plug cover 20 when the plug cover 20 is installed on the plug body 10. However, the insertion partition wall 18 may also be in the installed state. It is not in contact with the blocking plate portion 23 .

As shown in FIGS. 6 and 7 , the plug main body 10 has a mounting tube 15 arranged concentrically with the outflow tube 11 , surrounding the outflow tube 11 , and protruding inward in the outflow direction V from the top plate 12 .

The plug main body 10 of this embodiment has a contact step portion 17 formed along the inner peripheral edge of the mounting tube 15 on the inner surface of the top plate 12 in the outflow direction V. This contact step portion 17 is a step portion that protrudes inward in the outflow direction V from the top plate 12 and is formed continuously along the inner peripheral edge of the mounting tube 15 in the portion other than the insertion opening 16 . The height of the contact step portion 17 is lower than the penetration partition wall 18 . That is, the insertion partition wall 18 protrudes further inward in the outflow direction V than the contact step portion 17 .

When the plug cover 20 is installed on the plug body 10 and the partition wall 18 is inserted into the plug body 10 and comes into contact with the blocking plate portion 23, the contact step portion 17 may be in close contact with the top surface of the mounting wall portion 27, or not. snug. From the viewpoint of further suppressing leakage of contents from the refill container 5 , the contact step portion 17 is preferably in close contact with the top surface of the mounting wall portion 27 of the cap 20 when the cap 20 is attached to the cap body 10 .

In the plug main body 10 of this embodiment, the mounting tube 15, the insertion partition wall 18, and the contact step portion 17 protrude inward in the outflow direction V in this order.

When the plug main body 10 of this embodiment is viewed from the inside in the outflow direction V, the insertion opening 16 is surrounded by the insertion partition wall 18, the contact step portion 17, and the mounting tube 15 (see Fig. 7 ). In other words, the outline of the insertion opening 16 is formed by the insertion partition wall 18 , the contact step portion 17 , and the mounting tube 15 .

The plug main body 10 of this embodiment has an outer mounting tube 14 surrounding the mounting tube 15 and protruding inward in the outflow direction V from the peripheral edge of the top plate 12 . The top plate 12 is located between the mounting barrel 15 and the outer mounting barrel 14 surrounding the mounting barrel 15 . The plug main body 10 has a space divided by the mounting cylinder 15 , the outer mounting cylinder 14 and the top plate 12 on the inner side in the outflow direction V. In the present embodiment, with the outflow port peripheral portion 4a of the refill port neck 4 inserted between the mounting tube 15 and the outer mounting tube 14 of the cap body 10, the cap body 10 is driven into the flow. The outlet peripheral portion 4a fits the plug body 10 into the outlet peripheral portion 4a, and the plug body 1 is mounted and fixed on the refill port neck portion 4. A rib protruding radially outward is formed on the outer peripheral surface of the outlet peripheral portion 4a of this embodiment. By bringing this rib into close contact with the outer mounting tube 14, the plug main body 10 is attached and fixed to the refill port neck part 4 (see FIG. 2).

The installation and fixation of the plug body 1 to the refilling port neck 4 can also be screwed instead of fitted.

As shown in FIGS. 2 and 3 , in the plug body 1 , the press-fit convex portion 26 is located in the space between the outflow tube 11 and the cylindrical outer wall 13 , and extends outward in the outflow direction V from the top plate 12 via the insertion opening 16 . In a protruded state, the bolt cover 20 is attached to the bolt body 10 . The horizontal cross-sectional shape of the press-fitting convex portion 26 of this embodiment is substantially consistent with the plan view shape of the insertion opening 16 . That is, the horizontal cross-sectional shape of the press-fitting convex portion 26 is substantially similar to the plan view shape of the insertion opening 16 . Therefore, in the installed state, there is a slight gap between the pressing-fitting convex portion 26 and the insertion opening 16 .

Hereinafter, the state in which the press-fit convex portion 26 is inserted into the insertion opening 16 will also be simply referred to as the “mounted state”.

In the installed state of the present embodiment, the outer circumferential surface of the mounting wall portion 27 of the plug cap 20 is in close contact with the inner circumferential surface of the mounting tube 15 , and the top portion of the mounting wall portion 27 is in close contact with the contact step portion 17 state. Instead of this mode, a rib along the circumferential direction may be formed on either or both of the outer peripheral surface of the mounting wall portion 27 and the inner peripheral surface of the mounting tube 15 . In this case, the rib portion of the mounting wall portion 27 is in close contact with the mounting tube 15 , or the mounting wall portion 27 is in close contact with the rib portion of the mounting tube 15 .

Furthermore, the blocking plate portion 23 has the same planar shape as the hollow cross-sectional shape of the mounting tube 15 . In the installed state of the bolt cap 20 having these structures, the inside of the mounting tube 15 including the outflow opening 11 a of the top panel 12 is closed by the blocking plate portion 23 , and the mounting wall portion 27 is in close contact with the mounting tube 15 . Liquid-tightly sealed.

In this manner, the plug cap 20 blocks the outflow opening 11 a and the insertion opening 16 formed in the top plate 12 of the plug body 10 from the inside in the outflow direction V. Furthermore, the inside of the mounting tube 15 including the outflow opening 11 a is liquid-tightly sealed by the blocking plate portion 23 and the mounting wall portion 27 . Accordingly, even if the refill neck 4 is directed downward in the vertical direction and the refill container 5 is in an inverted state, leakage of the contents from the refill container 5 can be prevented.

Referring to FIG. 8 , the refill operation using the refill container 5 of this embodiment will be described. The refilled container 6 for filling the contents has a refilled mouth and neck 7 having an opening communicating with the storage space of the contents. The neck portion 7 is also a cylindrical portion having a flow path for filling the content inside. In the present embodiment, the refilled container 6 is a bottle-shaped container like the refill container 5 and has a refilled neck portion 7 and a shoulder portion and a main body portion forming a storage space for the contents. A male thread ridge (not shown) is formed on the outer peripheral surface of the refill neck portion 7 .

In the refill operation, as shown in FIG. 8 , the refill opening neck 4 is directed downward in the vertical direction Z, and the refill container 5 is placed in an inverted state. On the other hand, the refilled container 6 is in an upright state with the refilled opening and neck portion 7 facing upward in the vertical direction Z. Next, the plug body 1 is screwed to the refilled mouth neck part 7, and the refilling mouth neck part 4 and the refilled mouth neck part 7 are detachably combined. Specifically, the female threaded ridge 13a formed on the inner circumferential surface of the cylindrical outer wall 13 is screwed with the male threaded ridge formed on the outer circumferential surface of the refill neck part 7, so that the refill neck part is 4 is connected to the refilled mouth neck 7 . In this screwing operation, the refill opening neck 7 is inserted into the space between the outflow tube 11 and the cylindrical outer wall 13 of the plug body 10, and the refill container 5 is rotated around the central axis in the vertical direction. The upper part of Z (inside the outflow direction V) is pushed into the refilled port neck 7 . Thereby, the press-in convex part 26 is pushed upward in the vertical direction Z (inside the outflow direction V) by the top surface part of the refilled mouth neck part 7. At the same time, the blocking plate portion 23 is also pushed upward in the vertical direction Z (inside the outflow direction V). Therefore, the blocking caused by the blocking plate portion 23 is released, and the installation tube 15 including the outflow opening 11a is released. The interior communicates with a storage space for contents in the refill container 5 . As a result, the contents stored in the refill container 5 flow out into the refilled container 6 via the outflow tube 11 , and the contents can be filled into the refilled container 6 . In FIG. 8 , the outflow of the contents from the refill container 5 is schematically shown by a black arrow. Furthermore, the refilled mouth neck 7 is pushed upward in the vertical direction Z (inside the outflow direction V). When the top surface of the refilled mouth neck 7 reaches the top plate 12, the push-in convex portion 26 is pushed from The insertion opening 16 is completely pushed out, the plug cover 20 is detached from the plug main body 10, and the sealing of the insertion opening 16 by the push-in convex portion 26 is released (see FIG. 8).

The refilling operation using the refilling container 5 of this embodiment can be performed by a simple operation of detachably coupling the refilling mouth neck 4 and the refilling mouth neck 7 via the plug body 1 . In this operation, the refill port neck portion 7 is pressed inward in the outflow direction V along the inner circumferential surface of the cylindrical outer wall 13 as described above. At this time, the cylindrical outer wall 13 has an inner diameter corresponding to the outer diameter of the refilled mouth portion 7 , so that the refilled mouth portion 7 and the cylindrical outer wall 13 can be brought into close contact, and the refilling mouth portion 4 and the cylindrical outer wall 13 can be closely connected. Refilled mouth and neck 7 binding. Accordingly, even if the blocking of the outflow opening 11a by the cap 20 is released, the cylindrical outer wall 13 is in close contact with the refill port neck 7, thereby effectively suppressing leakage of the contents to the outside. The "inner diameter corresponding to the outer diameter of the refilled neck portion 7" of the cylindrical outer wall 13 means that the inner diameter of the cylindrical outer wall 13 is substantially the same as the outer diameter of the refilled neck portion 7 .

In the refill container 5 of this embodiment, the press-fit convex portion 26 protrudes from the top plate 12 to the outside in the outflow direction V via the insertion opening 16. Therefore, during the refilling operation, the press-fit convex portion 26 is removed from the top plate 12 during the refilling operation. Before the insertion port 16 is pushed out, the blocking by the blocking plate portion 23 is released, and the contents flow out through the outflow opening 11a. In addition, the horizontal cross-sectional shape of the press-fitting convex portion 26 is substantially similar to the top view shape of the insertion opening 16. Therefore, it is difficult to remove the pressing-fitting convex portion 26 before pushing it out from the insertion port 16 during the refilling operation. A large gap is created between 26 and the insertion opening 16 , so that the contents hardly flow out through the insertion opening 16 . When the push-in convex portion 26 is completely pushed out from the insertion port 16, the refill container 5 and the container to be refilled 6 are also connected to each other in the insertion port 16. However, in this insertion port 16, the refill container 5 and the container to be refilled are connected. Displaced by the air between the refill containers 6, the outflow opening 11a functions as a main outflow port. By this air replacement, the outflow of the contents through the outflow opening 11a can be promoted, and refilling (filling) of the contents can be performed efficiently.

In addition, the refill container 5 of this embodiment does not exchange air with the outside, but exchanges air with the container 6 to be refilled through the insertion opening 16 of the plug body 1. Therefore, the contents can be effectively suppressed from leaking to the outside. leakage. In addition to the air replacement between the containers 5 and 6 , the plug body 10 and the refilled container 6 are also fluid-tightly coupled. Therefore, it is assumed that the coupled inverted refill container 5 and the upright refilled container 6 fall down. , as long as the connection between the refill port neck 4 and the refilled port neck 7 via the plug body 1 is maintained, leakage of the contents to the outside can be suppressed, and therefore the contents can be filled stably.

From the viewpoint of making air replacement between the containers 5 and 6 easier, it is preferable that the opening end of the insertion port 16 inside the outflow direction V is located closer to the outflow direction V than the opening end of the outflow opening 11 a inside the outflow direction V. medial position.

The number of press-fitting convex portions 26 provided in the cap 20 is not particularly limited, and may be an odd number or a plural number. During the refilling operation, the push-out of the cap 20 by the refill port neck 7 is balanced and the blocking of the outflow opening 11a by the blocking plate portion 23 is more smoothly released. , it is preferable that the insertion openings 16 are formed at two or more locations in the plug main body 10 in the space between the outflow tube 11 and the cylindrical outer wall 13 of the top plate 12, and correspondingly, the plug cover 20 is press-fitted. The convex portions 26 are provided to stand up from two or more locations on the peripheral edge portion of the blocking plate portion 23 . For example, in the plug main body 10 , the insertion openings 16 may be formed at three places in the spacing portion, and in the plug cover 20 , the press-fit convex portions 26 may be formed in three places at the peripheral portion of the blocking plate portion 23 . In addition, in the plug main body 10, the insertion opening 16 may be formed in four places in the said space|interval part. In this case, in the plug cap 20 , the press-fit convex portions 26 can be formed at four places on the peripheral portion of the blocking plate portion 23 (see FIG. 9 ).

From the viewpoint of further improving the balance, when assuming a circle defined by the interval between the outflow tube 11 and the cylindrical outer wall 13 , it is preferable that the insertion opening 16 is formed at a point where the circumference of the circle is divided into a plurality of equal parts. parts. In this case, in the installed state, the press-fit convex portions 26 are respectively formed in portions corresponding to the insertion openings 16 in the peripheral portion of the blocking plate portion 23 . For example, in the plug body 10 , the insertion opening 16 may be formed at a location where the circumference of the circle defined by the spacing portion is divided into three equal parts, and the press-fit convex portion 26 may be formed in the peripheral portion of the blocking plate portion 23 . The position corresponding to the insertion port 16.

In the plug main body 10 of this embodiment, the insertion opening 16 is formed at two radially opposite locations in the interval portion, and the press-fit convex portion 26 is formed radially from the peripheral portion of the blocking plate portion 23 . Set upright at two opposite parts (see Figure 4).

Regarding the connection between the refilling port neck 4 and the refilled port neck 7 via the plug body 1, the cylindrical outer wall 13 and the refilled port neck 7 can be fitted. However, during this connection, the refilled port neck 7 is connected. It is preferable that the cylindrical outer wall 13 and the refilled neck portion 7 be screw-fitted from the viewpoint of making the filling port neck portion 7 less likely to collapse and further suppressing the leakage of contents, and from the viewpoint of performing the coupling operation more stably. That is, it is preferable that the inner peripheral surface of the cylindrical outer wall 13 is formed with a female threaded ridge 13 a that is threadedly engaged with a male threaded ridge formed on the outer peripheral surface of the refill port neck 7 . This structure makes it possible to easily release the combination of the refilling mouth neck 4 and the refilled mouth neck 7 when air replacement occurs between the refilling container 5 and the refilled container 6 after the refilling operation. is preferred.

In this embodiment, in order to make the screwing more reliable, the inner diameter of the cylindrical outer wall 13 is substantially the same as the outer diameter of the refilled neck portion 7 .

From the viewpoint of further suppressing the leakage of contents during the refill operation, it is preferable to insert the refill port neck 7 into the stopper body 10 at a space between the outflow tube 11 and the cylindrical outer wall 13 . When the neck portion 4 is coupled to the refilled mouth portion 7, the top plate 12 comes into contact with the front end portion of the mouth portion 7 (see Fig. 8). In other words, it is preferable that the top surface of the refillable mouthneck 7 reaches the top surface when the refillable mouthneck 7 is inserted into the space portion and the refillable mouthneck 4 and the refilled mouthneck 7 are combined. Plate 12. By adopting this structure, the mouth neck portion 7 to be refilled and the plug main body 10 are brought into closer contact, and leakage of the contents from the gap between the mouth neck portion 7 and the plug main body 10 can be further suppressed.

It is preferable that the base end portion of the mounting tube 15 on the side of the top plate 12 has an outer diameter capable of being in close contact with the inner peripheral surface of the outlet peripheral portion 4a (see FIG. 2 ). The mounting tube 15 of this embodiment has a portion on the front end side in the protruding direction of the mounting tube 15 whose outer diameter gradually becomes smaller as it goes inward from the outside in the outflow direction V, and the outer diameter of the base end portion on the top plate 12 side diameter is larger than this part. The outer diameter of the base end portion corresponds to the inner diameter of the outlet peripheral portion 4a. That is, the outer diameter of the base end portion of the mounting tube 15 is substantially the same as the inner diameter of the outlet peripheral portion 4a. By adopting this structure, when the plug body 10 is attached to the refill port neck 4, the base end portion of the mounting tube 15 is in close contact with the outlet peripheral portion 4a.

The mounting tube 15 may have an outer diameter capable of being in close contact with the inner circumferential surface of the outflow port peripheral portion 4a in the entire outflow direction V, or may have an outer diameter capable of being in close contact with the outflow port peripheral portion 4a only at the base end portion on the top plate 12 side. The outer diameter of the inner circumferential surface.

The plug body 1 of this embodiment is a molded article using synthetic resins such as polypropylene and polyethylene, and bioplastics such as polylactic acid, and is preferably formed by an injection molding method. The plug body 1 of this embodiment is formed as a two-part component including the plug main body 10 and the plug cover 20 .

In addition, the cap 20 is preferably made of a material with a lower specific gravity than the content (liquid). By adopting this structure, after the cap 20 is detached from the cap body 10 , the cap 20 floats in the contents due to buoyancy, so that the outflow of the contents through the outflow opening 11 a can be effectively suppressed from being hindered.

The plug body 1 of the present invention is not limited to the embodiment shown in FIGS. 1 to 8 . Hereinafter, another embodiment of the plug body 1 of the present invention will be described. Hereinafter, another embodiment will be described mainly with components different from the embodiment shown in FIGS. 1 to 8 , and the same components will be assigned the same reference numerals and descriptions will be omitted. The description of the embodiment shown in FIGS. 1 to 8 can be applied to components not specifically described.

In the embodiment shown in FIGS. 1 to 8 , when the top portion of the neck portion 7 to be refilled reaches the top plate 12 during the refilling operation, the pressing convex portion 26 is completely pushed out from the insertion port 16 , the plug cover 20 is detached from the plug main body 10, but the plug cover 20 does not need to be detached from the plug main body 10. For example, as shown in (a) and (b) of FIG. 10 , in the plug cover 20 , the protruding length of the press-fit convex portion 26 protruding from the mounting wall surface portion 27 may be longer than the thickness of the insertion opening 16 . The thickness of the insertion opening 16 is the length of the insertion opening 16 in the outflow direction V, and is equal to the thickness of the top plate 12 . The protruding length of the press-fit convex portion 26 is the length in the outflow direction V between the top surface (front end) of the mounting wall surface portion 27 and the top portion (front end) of the press-fit convex portion 26 .

In the cap 20 of this embodiment, even if the top portion of the neck portion 7 to be refilled reaches the top plate 12 , the push-in convex portion 26 does not separate from the insertion opening 16 and the insertion opening 16 is kept closed. (Installation state) [Refer to (b) of Fig. 10]. In this case, since the inside of the mounting tube 15 including the outflow opening 11a is unblocked by the blocking plate portion 23, a flow path for the contents to flow out of the refill container 5 can be secured. In addition, in the installed state of the present embodiment, when there is a slight gap between the press-fit convex portion 26 and the insertion opening 16, the air can be replaced in the containers 5 and 6 through the gap.

The present invention is not limited to the above-described embodiment and can be modified appropriately. In addition, the above-mentioned embodiments may be combined.

For example, the content refilled into the refilled container 6 using the plug body 1 or the refill container 5 having the plug body 1 may be liquid content such as lotion or lotion, or other liquid content such as powder or granular matter. Contents.

The stopper 1 of the above embodiment is a member attached to the mouth and neck 4 of the bottle-shaped refill container 5. It may also be used to cover the refill outlet of various refill containers made of plastic molded containers, film containers, etc. Installed parts.

The plug main body 10 does not need to have the insertion partition wall 18 .

The plug main body 10 does not need to have the outer mounting tube 14 , and may be integrally attached to the refill container 5 by covering the refill outlet of the refill opening neck 4 by sealing or the like.

In addition, the outflow tube 11 and the mounting tube 15 may be cylindrical portions having hollow cross-sectional shapes other than circular or elliptical, and the outflow opening 11 a of the plug body 10 and the blocking plate portion 23 of the plug cover 20 may not have round shapes. shaped plane shape.

The attachment wall portion 27 of the plug cover 20 does not need to have a hollow cylindrical shape. For example, the blocking plate portion 23 may be formed to have a thick wall, so that the outer peripheral surface is in close contact with the inner peripheral surface of the mounting tube 15 so that the blocking plate portion 23 functions as the mounting wall surface portion 27 .

In the above embodiment, the press-fit convex portion 26 standing up from the peripheral portion of the blocking plate portion 23 is a columnar portion of a four-sided corner pillar (see FIG. 4 ), but the press-fit convex portion 26 may be a columnar portion of other shapes. or cylindrical part. The press-fit convex portion 26 may have a tapered shape in which the front end becomes tapered toward the protruding direction. In addition, the front end of the press-in protrusion 26 may be flat or may have a step. Furthermore, the press-fitting convex portion 26 may be vertically erected with respect to the blocking plate portion 23 , or may be erected in an inclined state with respect to the blocking plate portion 23 .

The shape of the top plate 12 is not particularly limited, and may be circular as in the above-mentioned embodiment, or may be any shape such as a rectangle.

When the plug cap 20 has a plurality of press-fitting convex portions 26, the protruding lengths of the respective press-fitting convex portions 26 may be the same or different. For example, the protruding length of some of the press-fitting convex portions 26 may be shorter than the thickness of the insertion hole 16 , and the protruding length of the remaining press-fitting convex portions 26 may be longer than the thickness of the insertion hole 16 . In this case, during the refilling operation, even if the press-fit convex portion 26 with a short protrusion length is completely pushed out from the insertion opening 16 , the press-fit convex portion 26 with a long protrusion length remains inserted into the insertion port 16 , therefore air replacement through the insertion opening 16 corresponding to the press-fit convex portion 26 with a short protruding length becomes easy.

Regarding the embodiments of the present invention described above, the following plugs for refill containers and refill containers are further disclosed.

＜1＞

A stopper for a refill container, which is used to refill contents into a refilled container having a mouth and neck, and can be installed to cover the refill outlet of the refill container,

The stopper for a refill container includes: a stopper main body that can be engaged and fixed to the opening peripheral portion of the refill outlet; and a stopper cap that seals an opening formed on the top plate of the stopper body from the inside in the outflow direction. The outflow opening is removably installed on the plug body,

The plug main body has an outflow tube that surrounds the outflow opening and protrudes from the top plate toward the outside in the outflow direction; and a cylindrical outer wall that is concentrically arranged with the outflow tube and surrounds the outflow tube and extends from the outflow tube. The top plate protrudes outward in the outflow direction and has an inner diameter corresponding to the outer diameter of the mouth and neck of the refilled container; and a mounting tube that is concentrically arranged with the outflow tube and surrounds the outflow tube. The cylinder protrudes inward from the top plate in the outflow direction,

The plug main body has an insertion port forming an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall,

The plug cover has: a mounting wall portion whose outer circumferential surface is in close contact with the inner circumferential surface of the mounting barrel; a blocking plate portion that has the same planar shape as the hollow cross-sectional shape of the mounting barrel; and a press-fit convex portion. part, which is set upright from the peripheral part of the blocking plate part,

In a state where the press-fit convex portion protrudes outward in the outflow direction from the top plate through the insertion opening at the space between the outflow tube and the cylindrical outer wall, the plug cap is attached to the Bolt body.

＜2＞

The stopper for a refill container according to <1>, wherein:

The insertion openings are formed at two or more locations in a space between the outflow tube and the cylindrical outer wall of the top plate, and the press-fit convex portion is formed from a peripheral portion of the blocking plate portion. 2 or more parts are set upright.

＜3＞

The stopper for a refill container according to the above <2>, wherein:

Assuming a circle defined by a space between the outflow tube and the cylindrical outer wall, the insertion openings are formed at a plurality of locations equally dividing the circumference of the circle.

＜4＞

The stopper for a refill container according to any one of <1> to <3>, wherein:

Insert the mouth and neck of the refilled container into the space between the outflow tube and the cylindrical outer wall in the plug body, and connect the mouth and neck of the refilled container with the refilled When the mouth and neck of the filling container are combined, the top plate is in contact with the front end portion of the mouth and neck.

＜5＞

The stopper for a refill container according to any one of <1> to <4>, wherein:

The inner circumferential surface of the cylindrical outer wall is formed with a female threaded ridge that is threaded with a male threaded ridge formed on the outer circumferential surface of the mouth and neck of the container to be refilled.

＜6＞

The stopper for a refill container according to any one of <1> to <5>, wherein:

In the mounting tube, the base end portion on the top disk side has an outer diameter capable of being in close contact with the inner peripheral surface of the opening peripheral portion of the refill outlet.

＜7＞

The stopper for a refill container according to any one of <1> to <6>, wherein:

The insertion opening extends through the insertion partition wall inward of the outflow opening in the outflow direction.

＜8＞

The stopper for a refill container according to the above <7>, wherein:

In the insertion partition wall, a part of the peripheral portion of the insertion opening protrudes inward in the outflow direction.

＜9＞

The stopper for a refill container according to any one of <1> to <8>, wherein:

The plug cap is made of a material with a specific gravity lower than that of the contents.

＜10＞

A refill container for refilling contents into a refilled container having a mouth and neck,

The refill container has a refill container plug installed to cover the refill outlet,

The stopper for a refill container includes: a stopper main body that is joined and fixed to the opening peripheral portion of the refill outlet; and a stopper cover that seals the opening formed on the top plate of the stopper body from the inside in the outflow direction. outflow opening and detachably mounted on the plug body,

The plug main body has an outflow tube that surrounds the outflow opening and protrudes outward in the outflow direction from the top plate; and a cylindrical outer wall that is arranged concentrically with the outflow tube and surrounds the outflow tube and extends from the outflow tube. The top plate protrudes outward in the outflow direction and has an inner diameter corresponding to the outer diameter of the mouth and neck of the refilled container; and a mounting tube that is concentrically arranged with the outflow tube and surrounds the outflow tube. The cylinder protrudes inward from the top plate in the outflow direction,

The plug main body has an insertion port forming an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall,

The plug cover has: a mounting wall portion whose outer circumferential surface is in close contact with the inner circumferential surface of the mounting barrel; a blocking plate portion that has the same planar shape as the hollow cross-sectional shape of the mounting barrel; and a press-fit convex portion. part, which is set upright from the peripheral part of the blocking plate part,

In a state where the press-fit convex portion protrudes outward in the outflow direction from the top plate through the insertion opening at the space between the outflow tube and the cylindrical outer wall, the plug cap is attached to the Bolt body.

＜11＞

The refill container according to <10>, wherein,

The insertion openings are formed at two or more locations in a space between the outflow tube and the cylindrical outer wall of the top plate, and the press-fit convex portion is formed from a peripheral portion of the blocking plate portion. 2 or more parts are set upright.

＜12＞

The refill container according to <11>, wherein,

Assuming a circle defined by a space between the outflow tube and the cylindrical outer wall, the insertion openings are formed at a plurality of locations equally dividing the circumference of the circle.

＜13＞

The refill container according to any one of <10> to <12>, wherein:

Insert the mouth and neck of the refilled container into the space between the outflow tube and the cylindrical outer wall in the plug body, and connect the mouth and neck of the refilled container with the refilled When the mouth and neck of the filling container are combined, the top plate abuts the front end portion of the mouth and neck.

＜14＞

The refill container according to any one of <10> to <13>, wherein:

The inner circumferential surface of the cylindrical outer wall is formed with a female threaded ridge that is threaded with a male threaded ridge formed on the outer circumferential surface of the mouth and neck of the container to be refilled.

＜15＞

The refill container according to any one of <10> to <14>, wherein:

In the mounting tube, the base end portion on the top disk side has an outer diameter capable of being in close contact with the inner peripheral surface of the opening peripheral portion of the refill outlet.

＜16＞

The refill container according to any one of <10> to <15>, wherein:

The insertion opening extends through the insertion partition wall inward of the outflow opening in the outflow direction.

＜17＞

The refill container according to <16>, wherein,

In the insertion partition wall, a part of the peripheral portion of the insertion opening protrudes inward in the outflow direction.

＜18＞

The refill container according to any one of <10> to <17>, wherein:

The plug cap is made of a material with a specific gravity lower than that of the contents.

Industrial availability

According to the stopper for a refill container of the present invention and the refill container provided with the plug, the contents can be efficiently and stably filled during the refilling operation, and leakage of the contents can be prevented.

Claims (18)

1. A stopper for a refill container, which is used to refill the contents into a refilled container having a mouth and neck, and can be installed to cover the refill outlet of the refill container, The characteristics of the plug for refilling containers are: It includes: a plug main body that can be engaged and fixed to the opening peripheral portion of the refill outlet; and a plug cover that detachably seals the outflow opening formed in the top plate of the plug main body from the inside in the outflow direction. Installed on the main body of the bolt, The plug main body has an outflow tube that surrounds the outflow opening and protrudes from the top plate toward the outside in the outflow direction; and a cylindrical outer wall that is concentrically arranged with the outflow tube and surrounds the outflow tube and extends from the outflow tube. The top plate protrudes outward in the outflow direction and has an inner diameter corresponding to the outer diameter of the mouth and neck of the refilled container; and a mounting tube that is concentrically arranged with the outflow tube and surrounds the outflow tube. The cylinder protrudes inward from the top plate in the outflow direction, The plug main body has an insertion port forming an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall, The plug cover has: a mounting wall portion whose outer circumferential surface is in close contact with the inner circumferential surface of the mounting barrel; a blocking plate portion that has the same planar shape as the hollow cross-sectional shape of the mounting barrel; and a press-fit convex portion. part, which is set upright from the peripheral part of the blocking plate part, In a state where the press-fit convex portion protrudes outward in the outflow direction from the top plate through the insertion opening at the space between the outflow tube and the cylindrical outer wall, the plug cap is attached to the Bolt body. 2. The stopper for refilling containers according to claim 1, characterized in that: The insertion openings are formed at two or more locations in a space between the outflow tube and the cylindrical outer wall of the top plate, and the press-fit convex portion is formed from a peripheral portion of the blocking plate portion. 2 or more parts are set upright. 3. The stopper for refilling containers according to claim 2, characterized in that: Assuming a circle defined by a space between the outflow tube and the cylindrical outer wall, the insertion openings are formed at a plurality of locations equally dividing the circumference of the circle. 4. The stopper for a refill container according to any one of claims 1 to 3, characterized in that: Insert the mouth and neck of the refilled container into the space between the outflow tube and the cylindrical outer wall in the plug body, and connect the mouth and neck of the refilled container with the refilled When the mouth and neck of the filling container are combined, the top plate is in contact with the front end portion of the mouth and neck. 5. The stopper for a refill container according to any one of claims 1 to 4, characterized in that: The inner circumferential surface of the cylindrical outer wall is formed with a female threaded ridge that is threaded with the male threaded ridge formed on the outer circumferential surface of the mouth and neck of the container to be refilled. 6. The stopper for a refill container according to any one of claims 1 to 5, characterized in that: In the mounting tube, the base end portion on the top disk side has an outer diameter capable of being in close contact with the inner peripheral surface of the opening peripheral portion of the refill outlet. 7. The stopper for a refill container according to any one of claims 1 to 6, characterized in that: The insertion opening extends through the insertion partition wall inward of the outflow opening in the outflow direction. 8. The stopper for refilling containers according to claim 7, characterized in that: In the insertion partition wall, a part of the peripheral portion of the insertion opening protrudes inward in the outflow direction. 9. The stopper for a refill container according to any one of claims 1 to 8, characterized in that: The plug cap is made of a material with a specific gravity lower than that of the contents. 10. A refill container for refilling contents into a refilled container with a mouth and neck, the refill container is characterized by: The refill container has a refill container plug installed to cover the refill outlet, The stopper for a refill container includes: a stopper main body that is joined and fixed to the opening peripheral portion of the refill outlet; and a stopper cover that seals the opening formed on the top plate of the stopper body from the inside in the outflow direction. outflow opening and detachably mounted on the plug body, The plug main body has an outflow tube that surrounds the outflow opening and protrudes from the top plate toward the outside in the outflow direction; and a cylindrical outer wall that is concentrically arranged with the outflow tube and surrounds the outflow tube and extends from the outflow tube. The top plate protrudes outward in the outflow direction and has an inner diameter corresponding to the outer diameter of the mouth and neck of the refilled container; and a mounting tube that is concentrically arranged with the outflow tube and surrounds the outflow tube. The cylinder protrudes inward from the top plate in the outflow direction, The plug main body has an insertion port forming an opening in the top plate at a distance between the outflow tube and the cylindrical outer wall, The plug cover has: a mounting wall portion whose outer circumferential surface is in close contact with the inner circumferential surface of the mounting barrel; a blocking plate portion that has the same planar shape as the hollow cross-sectional shape of the mounting barrel; and a press-fit convex portion. part, which is set upright from the peripheral part of the blocking plate part, In a state where the press-fit convex portion protrudes outward in the outflow direction from the top plate through the insertion opening at the space between the outflow tube and the cylindrical outer wall, the plug cap is attached to the Bolt body. 11. The refill container of claim 10, characterized in that: The insertion openings are formed at two or more locations in a space between the outflow tube and the cylindrical outer wall of the top plate, and the press-fit convex portion is formed from a peripheral portion of the blocking plate portion. 2 or more parts are set upright. 12. The refill container of claim 11, characterized in that: Assuming a circle defined by a space between the outflow tube and the cylindrical outer wall, the insertion openings are formed at a plurality of locations equally dividing the circumference of the circle. 13. The refill container according to any one of claims 10 to 12, characterized in that: Insert the mouth and neck of the refilled container into the space between the outflow tube and the cylindrical outer wall in the plug body, and connect the mouth and neck of the refilled container with the refilled When the mouth and neck of the filling container are combined, the top plate is in contact with the front end portion of the mouth and neck. 14. The refill container according to any one of claims 10 to 13, characterized in that: The inner circumferential surface of the cylindrical outer wall is formed with a female threaded ridge that is threaded with a male threaded ridge formed on the outer circumferential surface of the mouth and neck of the container to be refilled. 15. The refill container according to any one of claims 10 to 14, characterized in that: In the mounting tube, the base end portion on the top disk side has an outer diameter capable of being in close contact with the inner peripheral surface of the opening peripheral portion of the refill outlet. 16. The refill container according to any one of claims 10 to 15, characterized in that: The insertion opening extends through the insertion partition wall inward of the outflow opening in the outflow direction. 17. The refill container of claim 16, characterized in that: In the insertion partition wall, a part of the peripheral portion of the insertion opening protrudes inward in the outflow direction. 18. The refill container according to any one of claims 10 to 17, characterized in that: The plug cap is made of a material with a specific gravity lower than that of the contents.