JP6324329B2 - Double container - Google Patents

Description

  The present invention includes a container body in which an inner layer body capable of volume reduction deformation is disposed inside an outer layer body, and a pouring cap attached to the mouth of the container body, and the pouring cap is opened and closed by a check valve With regard to the double container with possible content pouring paths, it is intended in particular to prevent its use with refilling of the content.

  Conventionally, as a double container of this type, for example, as described in Patent Document 1, a container main body and a pouring cap attached to the mouth of the container main body are provided, and the container main body has an outside air introduction hole. An outer layer body and an inner layer body disposed on the inner side of the outer layer body, and the inner layer body is deformed and reduced in volume as the contents are poured out, and external air is passed between the outer layer body and the inner layer body through the outside air introduction hole. Introducing and dispensing caps are known that have a dispensing channel for contents that can be opened and closed by a check valve.

  According to such a double container, the contents can be protected from contact with the outside air, and the quality of the contents can be maintained well.

Japanese Patent Application Laid-Open No. 2003-122012

  However, the conventional double container as described in Patent Document 1 can be refilled with the contents by removing the pouring cap from the mouth of the container body. Even when used, the quality of the contents could not always be kept good.

  The present invention has been developed in view of the above-described problems, and an object thereof is to provide a double container that can prevent use with refilling of contents.

That is, the gist configuration of the present invention is as follows.
1. A container body and a dispensing cap attached to the mouth of the container body;
The container body includes an outer layer body having an outside air introduction hole and an inner layer body arranged inside the outer layer body,
The inner layer body introduces outside air between the outer layer body and the inner layer body through the outside air introduction hole while volume-reducing and deforming as the contents are poured out,
The pouring cap is a double container having a pouring path for the contents that can be opened and closed by a check valve.
A ring member mounted on the outer peripheral surface of the mouth of the container body;
The ring member includes an annular wall that is locked on the outer peripheral surface of the mouth so as not to be pulled out, and an annular locking piece that is connected to the annular wall so as to be able to be reversed to the outer peripheral side via a bent portion.
The dispensing cap includes a mounting cylinder that is locked to the tip of the inverted annular locking piece,
2. The double container according to claim 1, wherein the bent portion is configured to be broken when the pouring cap is pulled out from the mouth portion in a state where the mounting cylinder is locked.

2. The double container according to 1 above, wherein the annular locking piece is provided intermittently in a circumferential direction.

3. The double container according to 1 or 2, wherein the bent portion has a weakened portion for easily causing breakage.

4). The double container according to any one of 1 to 3, wherein the annular wall of the ring member has a C shape in plan view.

5. The said double wall of the said ring member is a double container in any one of said 1-3 provided with the expansion-contraction part which can be expanded-contracted in the circumferential direction.

6). The outside air introduction hole of the outer layer body is provided in the mouth,
The double container according to any one of 1 to 5, wherein the annular wall of the ring member includes an insertion tube for securing an airway that is inserted into the outside air introduction hole.

  According to the present invention, the annular wall of the ring member is locked to the outer peripheral surface of the mouth portion of the container body so that it cannot be pulled out, and the mounting cylinder of the pouring cap is locked to the tip of the inverted annular locking piece of the ring member. Therefore, the extraction cap can be attached to the mouth portion via the ring member. Further, according to the present invention, when the pouring cap is pulled out from the mouth portion with the mounting cylinder locked in this way, the bent portion of the annular locking piece is broken, and the pouring cap is opened again. Since it cannot be attached to the part, the container cannot be used even if the contents are refilled.

  Therefore, according to this invention, the double container which can prevent the use accompanying refilling of the contents can be provided.

It is a longitudinal cross-sectional view of the double container which concerns on one Embodiment of this invention. It is a figure which shows the ring member of the double container of FIG. 1 in the state at the time of shaping | molding, (a) is a top view, (b) is a partial sectional view in alignment with the AA of (a). It is a longitudinal cross-sectional view of the double container which concerns on other embodiment of this invention. It is a figure which shows the ring member of the double container of FIG. 3 in the state at the time of shaping | molding, (a) is a top view, (b) is a partial cross section figure which follows the BB line of (a).

Hereinafter, with reference to FIGS. 1-2, the double container which concerns on one Embodiment of this invention is illustrated and demonstrated in detail.
In the present specification, the vertical direction is based on the upright state of the container, and the side on which the mouth is arranged along the axis of the container (that is, the upper side in FIG. 1) is the upper side and the side on which the bottom is arranged. (That is, the lower side in FIG. 1) is the lower side.

  As shown in FIG. 1, the double container 1 according to this embodiment includes a container main body 2 and a pouring cap 4 attached to the mouth 3 of the container main body 2. The container body 2 includes an outer layer body 6 having an outside air introduction hole 5 and an inner layer body 7 arranged inside the outer layer body 6. The inner layer body 7 is configured to introduce outside air between the outer layer body 6 and the inner layer body 7 through the outside air introduction hole 5 while being volume-reduced and deformed as the contents are poured out. The pouring cap 4 includes a content pouring path R that can be opened and closed by a check valve 8.

  More specifically, in this example, the container body 2 includes a mouth portion 3, a body portion 9 having a diameter larger than that of the mouth portion 3, and a bottom portion (not shown) that closes the lower portion of the body portion 9. It has a bottle shape. The container body 2 has a configuration in which the inner layer body 7 is detachably laminated on the outer layer body 6 by blow molding a co-extruded two-layered parison. In addition, you may comprise the container main body 2 by combining after forming the outer layer body 6 and the inner layer body 7 separately instead of such a structure.

  In this example, one outside air introduction hole 5 is formed in the mouth portion 3, and the outside air is guided to the outside air introduction hole 5 through the through holes 10 and 11 provided in the dispensing cap 4 and the outer layer body 6 and the inner layer. It is designed to be introduced between the body 7. An annular groove 34 into which an annular wall 30 of a ring member 29 described later is fitted is formed on the outer peripheral surface of the mouth portion 3. In this example, the outside air introduction hole 5 is arranged in the annular groove 34.

  The dispensing cap 4 includes a mounting cylinder 12 that is mounted on the mouth portion 3 via a ring member 29. Moreover, the extraction | pouring cap 4 consists of the cap main body 13, the valve member 14, and the inner cap member 15 in this example.

  The cap body 13 includes a mounting cylinder 12, a top wall 16 that continues to the upper end of the mounting cylinder 12, and an upper lid 18 that is connected to the mounting cylinder 12 via a hinge 17. The top wall 16 is provided with a dispensing cylinder 19 and the above-described through hole 10. The upper lid 18 is provided with a pin 20 that closes the dispensing cylinder 19.

  The valve member 14 includes a cylindrical wall 21, a check valve 8 connected to the inner peripheral side of the cylindrical wall 21, and an outside air introduction check valve 22 connected to the outer peripheral side of the cylindrical wall 21. I have. In this example, the check valve 8 is configured as a three-point valve in which the outer peripheral edge of a disc-shaped valve body is connected to the inner peripheral surface of the cylindrical wall 21 with three elastic arms. It is also possible to adopt. The check valve 22 for introducing outside air has a flange shape continuous in the circumferential direction. The upper part of the cylinder wall 21 is fitted in a fitting cylinder 23 that hangs down from the top wall 16 of the cap body 13.

  The inner cap member 15 is disposed between the top wall 16 of the cap body 13 and the mouth 3 of the container body 2 and is fitted to the inner peripheral surface of the mounting cylinder 12 of the cap body 13 via an undercut. The outer cylinder 24 is provided. Further, a bottom wall 25 is continuously provided on the inner peripheral side of the outer cylinder 24. An opening 26 is formed at the center of the bottom wall 25, and a valve seat of the check valve 8 is constituted by a peripheral edge portion of the opening 26. Further, an annular groove 27 is formed on the outer peripheral side of the opening 26, and the lower portion of the cylindrical wall 21 of the valve member 14 is fitted in the annular groove 27. On the outer peripheral side of the annular groove 27, an annular seal protrusion 28 that is fitted to the inner peripheral surface of the upper end of the mouth 3 is suspended. The aforementioned through hole 11 is formed in the lower part of the outer cylinder 24.

  Therefore, in this example, the content extraction path R is defined by the extraction cylinder 19 and the top wall 16 of the cap body 13, the cylinder wall 21 of the valve member 14, and the bottom wall 25 and the opening 26 of the inner cap member 15. ing.

  Further, the double container 1 includes a ring member 29 attached to the outer peripheral surface of the mouth 3 of the container body 2. The ring member 29 is reversed to the outer peripheral side via the annular wall 30 that is locked to the outer peripheral surface of the mouth portion 3 so that it cannot be pulled out, and the annular wall 30 (the upper edge of the annular wall 30 in this embodiment) via the bent portion 31. And an annular locking piece 32 which is continuously provided. The annular locking piece 32 is configured to lock the mounting cylinder 12 of the dispensing cap 4 by being inverted to the outer peripheral side via the bent portion 31. That is, an annular protrusion 33 is formed on the inner peripheral surface of the mounting cylinder 12, and the annular protrusion 33 is locked to the tip of the inverted annular locking piece 32. In this example, the annular protrusions 33 are provided continuously in the circumferential direction, but may be provided intermittently in the circumferential direction as long as the annular locking piece 32 can be locked.

  As shown in FIG. 2, the annular locking piece 32 is intermittently provided in the circumferential direction in this example. More specifically, the annular locking piece 32 is composed of a plurality (eight in this example) of locking pieces arranged at equal intervals in the circumferential direction. In FIG. 2, the annular locking piece 32 is shown in a state at the time of molding before inversion.

  Further, the annular locking piece 32 prevents the pulling-out cap 4 from being pulled out when the mounting cap 12 is locked as shown in FIG. To prevent). If it is forcibly extracted at this time, the bent portion 31 is broken. In the present example, the bent portion 31 has a weakened portion for facilitating such breakage. Such a weakened part can be comprised by a slit or a thin part, for example. In this example, the bent part 31 has a weakened part made of a thin part.

  In this example, the annular wall 30 has a C-shape in plan view (see FIG. 2), and is elastically deformed so as to widen the distance between the circumferential end portions 30a and 30b, and the annular groove 34 of the mouth portion 3 is formed. It is designed to fit inside. Moreover, the annular wall 30 is provided with the insertion cylinder 35 for airway ensuring inserted in the external air introduction hole 5 provided in the opening | mouth part 3 in this example. The insertion cylinder 35 has a length that exceeds the depth of the outside air introduction hole 5 formed in the outer layer body 6, and secures an air passage for introducing outside air between the outer layer body 6 and the inner layer body 7. Yes.

  Note that the insertion cylinder 35 is not necessarily provided. If the insertion cylinder 35 is not provided, for example, the annular groove 34 and the annular wall 30 may be arranged at a position and a range away from the outside air introduction hole 5. Further, when the insertion cylinder 35 is not provided, the outside air introduction hole 5 is not necessarily provided in the mouth portion 3 and may be provided in the trunk portion 9 or the bottom portion. Further, in this example, the annular wall 30 is provided so as to extend over a range of approximately 360 ° in the circumferential direction. However, the annular wall 30 may be appropriately changed as long as the object can achieve the object of the present invention. However, in consideration of the stability of the mounting state of the ring member 29 with respect to the mouth portion 3, it is preferably provided over a range of 180 ° or more in the circumferential direction. Furthermore, the ring member 29 can be divided into a plurality of parts in the circumferential direction.

  As described above, the double container 1 according to the present embodiment includes the ring member 29 attached to the outer peripheral surface of the mouth portion 3 of the container body 2, and the ring member 29 is engaged with the outer peripheral surface of the mouth portion 3 so that it cannot be pulled out. An annular wall 30 that stops, and an annular locking piece 32 that is connected to the annular wall 30 so as to be able to be reversed to the outer peripheral side via a bent portion 31, and the pouring cap 4 is an inverted annular locking piece 32. The annular locking piece 32 is configured such that when the dispensing cap 4 is pulled out from the mouth portion 3 in a state where the mounting cylinder 12 is locked, the bent portion 31 is broken. ing.

  Therefore, according to the double container 1 according to the present embodiment, the annular wall 30 of the ring member 29 is locked to the outer peripheral surface of the mouth portion 3 of the container body 2 so as not to be pulled out, and the annular member 30 in which the ring member 29 is reversed is reversed. Since the mounting cylinder 12 of the pouring cap 4 can be locked to the tip of the stop piece 32, the pouring cap 4 can be mounted on the mouth portion 3 via the ring member 29. Moreover, according to the double container 1 which concerns on this embodiment, when the extraction | pouring cap 4 is pulled out from the opening | mouth part 3 in the state which the mounting cylinder 12 latched in this way, the annular locking piece 32 bends. Since the portion 31 is broken and the dispensing cap 4 cannot be attached to the mouth portion 3 again, the container cannot be used even if the contents are refilled. Therefore, according to the double container 1 which concerns on this embodiment, the use accompanying refilling of the contents can be prevented.

  Moreover, in this embodiment, since the annular locking piece 32 is intermittently provided in the circumferential direction, the bent portion 31 is more reliably broken when the dispensing cap 4 is pulled out from the mouth portion 3. be able to.

  Moreover, in this embodiment, since the bending part 31 has the weakening part for making it easy to produce a fracture | rupture, when the extraction | pouring cap 4 is pulled out from the opening part 3, the fracture | rupture of the bending part 31 is made much more reliably. Can be generated.

  In the present embodiment, the annular wall 30 of the ring member 29 has a C-shape in plan view, so that the annular wall 30 of the ring member 29 can be easily attached to the mouth 3 of the container body 2. .

  Furthermore, in the present embodiment, the outside air introduction hole 5 of the outer layer body 7 is provided in the mouth portion 3, and the annular wall 30 of the ring member 29 includes an insertion cylinder 35 for securing an airway that is inserted into the outside air introduction hole 5. Therefore, smoother introduction of outside air through the outside air introduction hole 5 can be enabled.

Next, with reference to FIGS. 3 to 4, a double container 1 ′ according to another embodiment of the present invention will be described in detail as an example.
The double container 1 ′ according to the present embodiment is the same as that of the above-described embodiment except that the mouth 3 of the container body 2 is provided with two outside air introduction holes 5 and the ring member 29 ′ is different in form. The configuration is the same as in the case of.

  Here, the ring member 29 ′ of this embodiment is different from that of the above-described embodiment in that the annular wall 30 includes an expansion / contraction portion 36 (see FIG. 2) that can expand and contract in the circumferential direction. . Hereinafter, the ring member 29 'will be described more specifically.

  As in the case of the above-described embodiment, the ring member 29 ′ includes an annular wall 30 that is locked to the outer peripheral surface of the mouth portion 3 so as not to be pulled out, and the annular wall 30 (the upper edge of the annular wall 30 in this embodiment). And an annular locking piece 32 that is continuously connected to the outer peripheral side via a bent portion 31. In this example, as shown in FIG. 4, the annular locking piece 32 is composed of a plurality (six in this example) of locking pieces arranged at intervals in the circumferential direction.

  In this example, the annular wall 30 includes an expansion / contraction portion 36 that can expand and contract in the circumferential direction, and the expansion / contraction of the expansion / contraction portion 36 allows the mouth portion 3 to be easily fitted into the annular groove 34. In this example, the expansion / contraction part 36 is comprised as a pair of foldable part which opposes on both sides of the axis line of the cyclic | annular wall 30. As shown in FIG.

  In addition, the annular wall 30 includes a pair of insertion tubes 35 for securing an airway that face each other along the folding direction of the pair of foldable portions (expandable portions 36). The pair of insertion cylinders 35 are respectively inserted into the outside air introduction holes 5 provided in the mouth portion 3 so as to secure an air passage for introducing outside air between the outer layer body 6 and the inner layer body 7. Note that the pair of insertion cylinders 35 is not necessarily provided as in the case of the above-described embodiment.

  According to the double container 1 ′ according to the present embodiment having such a configuration, the same effects as those of the above-described embodiment can be obtained. Further, in the present embodiment, the annular wall 30 of the ring member 29 ′ is provided with the expansion / contraction portion 36 that can be expanded and contracted in the circumferential direction, so that the insertion of the annular wall 30 into the annular groove 34 of the mouth portion 3 can be performed. This can be easily performed by expanding and contracting.

  The above description shows only one embodiment of the present invention, and it goes without saying that various modifications may be made within the scope of the claims.

DESCRIPTION OF SYMBOLS 1,1 'Double container 2 Container main body 3 Mouth part 4 Pouring cap 5 Outside air introduction hole 6 Outer layer body 7 Inner layer body 8 Check valve 9 trunk | drum 10 Through-hole 11 Through-hole 12 Mounted cylinder 13 Cap body 14 Valve member 15 Inner cap member 16 Top wall 17 Hinge 18 Upper lid 19 Outlet tube 20 Pin 21 Tube wall 22 Outside air check valve 23 Fitting tube 24 Outer tube 25 Bottom wall 26 Opening 27 Annular groove 28 Seal projection 29, 29 ′ Ring Member 30 Annular walls 30a, 30b Both ends in the circumferential direction 31 Bent part 32 Annular locking piece 33 Annular projection 34 Annular groove 35 Insertion cylinder 36 Extendable part R Extraction path

Claims (6)

A container body and a dispensing cap attached to the mouth of the container body;
The container body includes an outer layer body having an outside air introduction hole and an inner layer body arranged inside the outer layer body,
The inner layer body introduces outside air between the outer layer body and the inner layer body through the outside air introduction hole while volume-reducing and deforming as the contents are poured out,
The pouring cap is a double container having a pouring path for the contents that can be opened and closed by a check valve.
A ring member mounted on the outer peripheral surface of the mouth of the container body;
The ring member includes an annular wall that is locked on the outer peripheral surface of the mouth so as not to be pulled out, and an annular locking piece that is connected to the annular wall so as to be able to be reversed to the outer peripheral side via a bent portion.
The dispensing cap includes a mounting cylinder that is locked to the tip of the inverted annular locking piece,
2. The double container according to claim 1, wherein the bent portion is configured to be broken when the pouring cap is pulled out from the mouth portion in a state where the mounting cylinder is locked.   The double container according to claim 1, wherein the annular locking piece is provided intermittently in the circumferential direction.   The double container according to claim 1, wherein the bent portion has a weakened portion for facilitating breakage.   The double container according to any one of claims 1 to 3, wherein the annular wall of the ring member has a C-shape in plan view.   The said annular wall of the said ring member is a double container as described in any one of Claims 1-3 provided with the expansion-contraction part which can be expanded-contracted in the circumferential direction. The outside air introduction hole of the outer layer body is provided in the mouth,
The said annular wall of the said ring member is a double container as described in any one of Claims 1-5 provided with the insertion cylinder for airway ensuring inserted in the said external air introduction hole.

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