WO2018168922A1 - Delamination container - Google Patents

Abstract

Provided is a delamination container capable of suppressing degradation of contents in a high-temperature environment. According to the present invention, there is provided a delamination container provided with a container body and a cylindrical outer packaging case attached to the container body, wherein the container body has an outer shell and an inner bag, the inner bag contracting with a decrease in contents.

Description

Delamination container

The present invention relates to a delamination container that can store contents in a container body arranged in an outer case.

Patent Document 1 discloses a delamination container that can store contents in a container body disposed in an outer case.

JP 2003-292073 A Japanese Patent Laid-Open No. 2015-163531

The container body of Patent Document 1 may contain contents that tend to deteriorate under high-temperature environments (eg, cosmetics), and a delamination container that can suppress deterioration of contents under high-temperature environments is required. ing.

The present invention has been made in view of such circumstances, and provides a delamination container that can suppress deterioration of contents in a high-temperature environment.

According to the present invention, a delamination container including a container main body and a cylindrical outer case mounted on the container main body, the container main body having an outer shell and an inner bag, and reducing the contents Accordingly, a delamination container is provided in which the inner bag shrinks.

In the delamination container of the present invention, since the container body is a delamination container, the inner bag shrinks as the contents decrease, and a gap is formed between the inner bag and the outer shell. Since the heat insulation is improved by this gap, the deterioration of the contents in a high temperature environment is suppressed.

Hereinafter, various embodiments of the present invention will be exemplified. The following embodiments can be combined with each other.
Preferably, the outer case houses the container body therein.
Preferably, each of the container body and the exterior case includes a body portion, and a body space is provided between the body portion of the container body and the body portion of the exterior case.
Preferably, Tg / Ts ≧ 0.3, where Ts is the thickness of the outer shell of the container body and Tg is the thickness of the body gap.
Preferably, Tg / Ts ≧ 0.5.
Preferably, the container main body includes a body portion and a flange portion protruding radially outward from the body portion, and the flange portion is supported by the exterior case.
Preferably, the flange portion includes an annular portion projecting radially outward from the body portion and a projecting portion projecting radially outward from the annular portion, and the projecting portion is supported by the exterior case. .
Preferably, the flange portion is hollow.
Preferably, an external airflow passage is provided between the flange portion and the exterior case.
Preferably, each of the container body and the exterior case includes a bottom portion, and a bottom gap is provided between the bottom portion of the container body and the bottom portion of the exterior case.
Preferably, the container main body is provided with an outside air introduction hole for introducing outside air between the outer shell and the inner bag at the bottom.
Preferably, the inner bag has an inner bag exposed portion exposed to the outside on the bottom side, and the outside air introduction hole is provided between the inner bag exposed portion and the outer shell.
Preferably, the container body is filled with the contents, and after the contents are filled, there is a gap between the inner bag and the outer shell in a state before the user starts to discharge the contents. Is provided.
Preferably, Vc / Vs ≦ 0.95, where Vs is the volume of the outer shell and Vc is the volume of the contents contained in the inner bag.
Preferably, the delamination container includes a fixing ring, and the container body and the outer case are attached to the fixing ring.
Preferably, the delamination container includes a pump for discharging the contents, and the pump is attached to the fixing ring.
Preferably, the container main body includes a storage portion that stores the contents and a mouth portion that discharges the contents from the storage portion, and the exterior case is mounted so as to cover at least a part of the storage portion. The delamination container is configured to be able to discharge the contents from the mouth by deforming the exterior case.
Preferably, the outer case is configured to be restored to its original shape by the restoring force of the outer case when the pressing force is removed after the outer case is deformed by applying a pressing force.
Preferably, the outer case is configured such that the maximum value of the pushing amount when a pressing force of 2 kg is applied with an indenter having a diameter of 15 mm is 5 mm or more.
Preferably, the pushing amount is 10 mm or more.
Preferably, the exterior case is an injection molded body.
Preferably, the exterior case includes a first region and a second region, and the first region is formed of a material having a lower bending elastic modulus than a material constituting the second region, or is more than the second region. The thickness is thin.
Preferably, the first region is arranged at a position facing the center in the height direction of the housing portion.
Preferably, the exterior case is mounted so as to cover the container body from the mouth side of the container body.
Preferably, the exterior case includes a main body member, and the main body member is configured by combining a pair of main body constituent members.
Preferably, the exterior case includes a bottom member, the main body member is disposed closer to the mouth than the bottom member, and the main body member is engaged with the bottom member.
Preferably, the container main body includes a bottom portion that is a bottom of the housing portion, the exterior case includes a main body member, the main body member includes a pair of convex portions, and the pair of convex portions oppose each other. Each projecting toward the bottom of the container body.
Preferably, the convex portion has a width of 80% or more of the entire width of the main body member when the convex portion is viewed from the front.
Preferably, the convex portion has an inclined surface that is inclined so that the protruding amount of the convex portion increases toward the center in the width direction of the main body member when the convex portion is viewed from the front.
Preferably, the exterior case includes a bottom member, the main body member is disposed at a position closer to the mouth than the bottom member, and the main body member is engaged with the bottom member at least at the convex portion. Not.
Preferably, a cap attached to the mouth portion is provided, and the outer case is sandwiched and fixed by the cap and the container body.

It is a cross-sectional perspective view of the lamination peeling container 1 of 1st Embodiment of this invention. It is sectional drawing of the lamination peeling container 1 of FIG. It is a cross-sectional perspective view of the state which removed the pump 4 from FIG. It is a perspective view of the pump 4 in FIG. It is a perspective view of the exterior case 2 and the fixing ring 5 in FIG. FIG. 4 is a cross-sectional perspective view of the state where the fixing ring 5 is removed from FIG. 3. It is a cross-sectional perspective view of the container main body 3 in FIG. 8A is a perspective view of the container body 3 as viewed from the bottom 3b side, and FIG. 8B is an enlarged perspective view of the vicinity of the bottom 3b. It is sectional drawing which shows the state in which the clearance gap is provided between the inner bag 14 and the outer shell 12 of the lamination peeling container 1 of FIG. It is sectional drawing corresponding to FIG. 2 of the lamination peeling container 1 of 2nd Embodiment of this invention. It is a perspective view of the pump 4 and the fixing ring 5 of the lamination peeling container 1 of 3rd Embodiment of this invention. FIG. 12 is a perspective view showing a state in which the pump 4 is separated from the fixing ring 5 from FIG. 11. It is the perspective view seen from the lower side of the fixing ring 5 in FIG. It is sectional drawing corresponding to FIG. 2 of the lamination peeling container 1 of 4th Embodiment of this invention. It is a perspective view of the exterior case 2 and the fixing ring 5 in FIG. It is a perspective view of the exterior case 2 and the container main body 3 in FIG. It is a front view of the lamination peeling container 1 of 5th Embodiment of this invention. It is a right view of the lamination peeling container 1 of FIG. It is the perspective view which divided into 2 the cap 4e and the exterior case 6 of the lamination peeling container 1 of FIG. It is the perspective view which divided the cap 4e and the exterior case 6 of the lamination peeling container 1 of FIG. 17 into another direction. It is a perspective view of the exterior case 6 in FIG. FIG. 19 is a cross-sectional view taken along line AA with the cap 4e removed from the delamination container 1 of FIG. FIG. 23 is an enlarged view of the vicinity of the mouth portion 9 in FIG. 22. It is a perspective view of the valve member 11 in FIG. It is a perspective view of the lamination peeling container 1 of 6th Embodiment of this invention. It is the perspective view which divided into 2 the cap 4e and the exterior case 6 of the lamination peeling container 1 of FIG. It is the perspective view which divided the cap 4e and the exterior case 6 of the lamination peeling container 1 of FIG. 25 into another direction. FIG. 26 is a perspective view of a state in which the exterior case 6 in FIG. 25 is disassembled into a main body member 16 and a bottom member 17. It is a perspective view of the state which decomposed | disassembled the main body member 16 in FIG. 28 into a pair of main body structural member 26. FIG. It is a perspective view of the lamination peeling container 1 of 7th Embodiment of this invention. It is a perspective view of the container main body 3 and the cap 4e in FIG. It is a perspective view of the exterior case 6 in FIG. It is a perspective view of the lamination peeling container 1 of 8th Embodiment of this invention. It is a perspective view of the exterior case 6 in FIG. It is a perspective view of the state which decomposed | disassembled the exterior case 6 of FIG. 34 into the main body member 36 and the bottom part member 37. FIG. It is a front view of the main body member 36 in FIG.

Hereinafter, embodiments of the present invention will be described. Various characteristic items shown in the following embodiments can be combined with each other. The invention is established independently for each feature.

1. First Embodiment As shown in FIGS. 1 to 9, a delamination container (container container) 1 according to a first embodiment of the present invention includes an outer case (outer container) 2, a container body (inner container) 3, A pump 4 and a fixing ring 5 are provided. The exterior case 2 accommodates the container body 3 therein.

<Exterior case 2>
The outer case 2 has a bottomed cylindrical shape, and includes a body portion 2a and a bottom portion 2b. On the outer surface side of the upper end of the body portion 2a, a reduced diameter portion 2c in which the outer surface of the body portion 2a is reduced in diameter is provided. The reduced diameter portion 2c is provided with a male screw portion 2f. A support portion 2d that supports the flange portion 3c of the container body 3 is provided on the inner surface near the upper end of the body portion 2a. The support portion 2d is formed by expanding the inner diameter of the body portion 2a in the vicinity of the upper end. That is, the upper side of the support part 2d is an enlarged diameter part 2g having a larger inner diameter of the body part 2a than the lower side of the support part 2d, and a step is formed in the support part 2d. The support portion 2d and the enlarged diameter portion 2g are provided with an external air flow passage 2e, and the outside air can be circulated through the external air flow passage 2e even when the container body 3 is mounted in the exterior case 2. The bottom 2b is flat, and the outer case 2 can be self-supporting. Although the manufacturing method and material of the exterior case 2 are not particularly limited, for example, a resin molded body formed by injection molding is preferable.

<Container body 3>
The container body 3 is a delamination container that has an outer shell 12 and an inner bag 14 and in which the inner bag 14 contracts as the content decreases. As the content decreases, the inner bag 14 moves away from the outer shell 12, so that the inner bag 14 moves away from the outer shell 12 and contracts.

The outer shell 12 is made of, for example, low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, and a mixture thereof.

The inner bag 14 includes an EVOH layer provided on the outer surface side of the container, an inner surface layer provided on the inner surface side of the EVOH layer, and an adhesive layer provided between the EVOH layer and the inner surface layer. By providing the EVOH layer, the gas barrier property and the peelability from the outer shell 12 can be improved. The adhesive layer may be omitted.

The EVOH layer is a layer made of an ethylene-vinyl alcohol copolymer (EVOH) resin, and is obtained by hydrolysis of ethylene and vinyl acetate copolymer. The ethylene content of the EVOH resin is, for example, 25 to 50 mol%, and is preferably 32 mol% or less from the viewpoint of oxygen barrier properties. Although the minimum of ethylene content is not prescribed | regulated, since the softness | flexibility of an EVOH layer tends to fall, so that ethylene content is small, 25 mol% or more is preferable.

The inner layer is a layer that comes into contact with the contents, and is composed of, for example, low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, cycloolefin polymer, EVOH, and a mixture thereof. And EVOH. The barrier property can be improved by forming a layer in contact with the contents with EVOH.

The adhesive layer is a layer having a function of adhering the EVOH layer and the inner surface layer. For example, an acid-modified polyolefin having a carboxyl group introduced into the above-described polyolefin (eg, maleic anhydride-modified polyethylene), ethylene acetate It is a vinyl copolymer (EVA). An example of the adhesive layer is a mixture of low-density polyethylene or linear low-density polyethylene and acid-modified polyethylene.

The container body 3 has a bottomed cylindrical shape, and includes a trunk portion 3a, a bottom portion 3b, a flange portion 3c, and a mouth portion 3d. The flange portion 3c is provided at the upper end of the trunk portion 3a. The flange portion 3c is provided so as to protrude radially outward from the body portion 3a. The outer diameter of the flange portion 3c substantially coincides with the enlarged diameter portion 2g. When the container main body 3 is inserted into the outer case 2, the lower surface of the flange portion 3 c comes into contact with the support portion 2 d so that the container main body 3 is positioned in the vertical direction with respect to the outer case 2. That is, the flange portion 3 c is supported by the outer case 2. Further, the container body 3 is positioned in the horizontal direction with respect to the outer case 2 by the outer peripheral surface of the flange portion 3c coming into contact with the inner peripheral surface of the enlarged diameter portion 2g. When the flange portion 3c is in close contact with the enlarged diameter portion 2g and the support portion 2d, it is difficult for outside air to be introduced into the gap between the outer case 2 and the container body 3. However, in this embodiment, the circulation of the outside air through the outside air passage 2e Is possible. The flange portion 3c is hollow, and the contents can be accommodated in the flange portion 3c.

A body gap 18 is provided between the body 3 a of the container body 3 and the body 2 a of the outer case 2. This gap further enhances the heat insulation. When the thickness of the outer shell 12 is Ts and the thickness of the body gap 18 is Tg, Tg / Ts ≧ 0.3 is preferable, and Tg / Ts ≧ 0.5 is more preferable. In this case, the heat insulation is particularly enhanced without increasing the thickness of the outer shell 12. Tg / Ts is, for example, 0.3 to 100. Specifically, for example, 0.3, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4,. 5, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, and may be within a range between any two of the numerical values exemplified here. When the volume V1 of the container body 3 and the volume of the outer case 2 are V2, V1 / V2 ≦ 0.99 is preferable, and V1 / V2 ≦ 0.90 is more preferable. V1 / V2 is, for example, 0.1 to 0.95, specifically, for example, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95, and 0.99, and may be within a range between any two of the numerical values exemplified here.

A bottom gap 19 is provided between the bottom 3 b of the container body 3 and the bottom 2 b of the outer case 2. The inner bag 14 has an inner bag exposed portion 14a exposed to the outside on the bottom 3b side. In the present embodiment, the inner bag exposed portion 14a protrudes from the bottom portion 3b, but the inner bag exposed portion 14a may not protrude from the bottom portion 3b. The inner bag exposed portion 14a is sandwiched by the sandwiching portion 12a of the outer shell 12, and an outside air introduction hole 15 is provided between the inner bag exposed portion 14a and the sandwiching portion 12a. A gap is also provided between the tips of the inner bag exposed portion 14 a and the sandwiching portion 12 a and the bottom portion 2 b of the outer case 2. When the inner bag 14 contracts as the contents are discharged, the outside air is introduced between the inner bag 14 and the outer shell 12 through the outside air introduction hole 15. As a result, only the inner bag 14 is contracted and the outer shell 12 is maintained in its original shape, so that a gap is formed between the inner bag 14 and the outer shell 12. This clearance enhances the heat insulating property of the delamination container and suppresses the deterioration of the contents.

The container body 3 can be formed, for example, by blow-molding a cylindrical laminated parison. The inner bag exposed portion 14a and the sandwiching portion 12a can be formed by sandwiching and crushing the lower end of the laminated parison with the pinch-off portion of the split mold. Immediately after the formation of the container body 3, the inner bag exposed portion 14a and the sandwiching portion 12a are attached to each other and the outside air introduction hole 15 is not provided. However, since the inner bag exposed portion 14a and the sandwiching portion 12a are easily peeled off, By applying an impact, a twisting force, or the like so that the 14a and the sandwiching portion 12a are peeled off, the inner bag exposed portion 14a and the sandwiching portion 12a can be peeled and the outside air introduction hole 15 can be formed therebetween.

The container body 3 has a mouth portion 3d, and a male screw portion 3e is provided on the outer surface of the mouth portion 3d.

The container body 3 may be decorated by covering it with a shrink film, for example. By making the outer case 2 transparent, the decoration of the container body 3 can be visually recognized from the outside.

<Pump 4>
The pump 4 is configured to discharge the contents from the container body 3 without introducing outside air into the container body 3. The pump 4 includes a main body portion 4a, a piston portion 4b, a nozzle 4c, and a tube 4d. The main body portion 4a includes a cylinder portion 4a1, a cylinder portion 4a2, and an upper wall portion 4a3. An internal thread portion 4a4 that is screwed into the external thread portion 3e is provided on the inner surface of the cylindrical portion 4a1. The cylinder part 4a2 is inserted into the mouth part 3d. The outer diameter of the cylinder part 4a2 substantially coincides with the inner diameter of the mouth part 3d. The cylinder part 4a2 is cylindrical, and the piston part 4b is slidable in the cylinder part 4a2. The internal space of the cylinder part 4a2 communicates with the nozzle 4c and the tube 4d. A pump mechanism composed of an elastic member and a valve is built in the internal space of the cylinder portion 4a2. By sliding the piston portion 4b and operating the pump mechanism, the contents sucked up through the tube 4d can be discharged from the nozzle 4c.

<Fixing ring 5>
The fixing ring 5 includes an outer cylinder part 5a, an upper wall part 5b, and an inner cylinder part 5d. The outer cylinder part 5a and the inner cylinder part 5d are connected by the upper wall part 5b. On the inner surface of the outer cylinder portion 5a, a female screw portion 5f that can be screwed with the male screw portion 2f is provided. An opening 5c is provided in the upper wall 5b. The inner diameter of the opening 5c is larger than the outer diameter of the cylinder part 4a2. For this reason, as shown in FIG. 1, with the pump 4 attached to the mouth portion 3d and the fixing ring 5 attached to the exterior case 2, the space between the outer surface of the cylindrical portion 4a1 of the pump 4 and the inner surface of the opening 5c. There is a gap and ventilation is possible. Further, when the fixing ring 5 is attached to the outer case 2 with the container main body 3 inserted into the outer case 2, the tip of the inner cylindrical portion 5 d comes into contact with the upper surface 3 f of the container main body 3, so that the container main body 3 is vertically To be completely fixed. In addition, since the container main body 3 is unevenly fitted to the outer case 2 at the flange portion 3c of the container main body 3, the container main body 3 can be fixed to the outer case 2 without providing the fixing ring 5. it can. When the inner cylinder portion 5d is in close contact with the upper surface 3f, it is difficult for outside air to be introduced into the gap between the outer case 2 and the container body 3. However, in the present embodiment, the inner cylinder portion 5d is provided with an external airflow passage 5e. The circulation of the outside air through the outside air passage 5e is possible.

In the configuration of the present embodiment, outside air is introduced into the gap between the inner bag 14 and the outer shell 12 through the opening 5 c, the outside airflow passages 5 e and 2 e, the body gap 18, the bottom gap 19, and the outside air introduction hole 15. The For this reason, even when the delamination container 1 is suddenly exposed to a high temperature environment, it is difficult for high temperature outside air to contact the inner bag 14.

<Manufacturing and usage>
In the delamination container 1 of the present embodiment, the container body 3 is filled with the contents, and then the pump 4 attached to the mouth portion 3d is inserted into the outer case 2, and the fixing ring 5 is inserted into the outer case in that state. 2 can be manufactured.

The contents may be fully filled so that there is no gap between the inner bag 14 and the outer shell 12 as shown in FIG. 2, but as shown in FIG. It may be filled (that is, partially filled) so that a gap is provided. In this case, since there is a gap between the inner bag 14 and the outer shell 12 even after the content is filled and before the user starts discharging the content, the heat insulation is further improved. When the volume of the outer shell 12 is Vs and the volume of the contents accommodated in the inner bag 14 is Vc, it is preferable that Vc / Vs ≦ 0.95, and further that Vc / Vs ≦ 0.9. preferable. Vc / Vs is, for example, 0.5 to 0.95, specifically, for example, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, and 0.95, and may be within a range between any two of the numerical values exemplified here.

As a method of partially filling the contents, for example, by sucking out air in the inner bag 14 from the mouth portion 3d, the inner bag 14 is peeled off from the outer shell 12 and the inner bag 14 is contracted. Is a method of partially filling. According to such a method, the inner bag 14 can be partially filled so that air does not remain in the inner bag 14 while providing a gap between the inner bag 14 and the outer shell 12.

2. Second Embodiment A second embodiment of the present invention will be described with reference to FIG. This embodiment is the same as the first embodiment in basic configuration and function, and is mainly different in that the shape of each member is different from that in the first embodiment. Hereinafter, the difference will be mainly described.

In the present embodiment, the outer diameter of the container body 3 is smaller than that of the first embodiment, and the outer case 2 is greatly expanded in the vicinity of the bottom 2b. As a result, the trunk | drum clearance gap 18 becomes very large and the heat insulation is improved. Also in this embodiment, outside air is introduced between the inner bag 14 and the outer shell 12 from the outside air introduction hole 15 provided in the bottom 3b. In this embodiment, the inner bag is formed in the bottom 3b of the container body 3. The point from which 14 and the outer shell 12 do not protrude is different from 1st Embodiment. For this reason, the flow of outside air is smooth between the bottom 2b and the bottom 3b.

3. Third Embodiment A third embodiment of the present invention will be described with reference to FIGS. This embodiment is the same as the first embodiment in the basic configuration and function, and the main difference is that the outer case 2 and the container body 3 are mounted on the fixing ring 5, and the pump 4 is also mounted on the fixing ring 5. Is a point. Hereinafter, the difference will be mainly described.

In the present embodiment, in addition to the configuration of the first embodiment, the fixing ring 5 includes an outside air introduction hole 5h, a protruding portion 5i, a recessed portion 5j, and a cylindrical portion 5k having a female screw portion 5l. The pump 4 does not have the cylinder part 4a1 but has the flange part 4a5. The flange portion 4a5 protrudes radially outward from the cylindrical portion 4a1.

The outside air introduction hole 5h is formed in the upper wall portion 5b. The protrusion 5i is formed at the center of the upper wall 5b. The protrusion 5i can be omitted. The recess 5j is formed in the protrusion 5i. The opening 5c is sized such that the cylinder 4a2 can be inserted and the flange 4a5 cannot be inserted. The recess 5j is configured to be engageable with the flange portion 4a5. The cylinder part 5k having the female screw part 5l is configured in the same manner as the cylinder part 4a1 having the female screw part 4a4 of the first embodiment.

According to such a configuration, both the container body 3 and the outer case 2 can be attached (screwed) to the fixing ring 5. The pump 4 is also attached to the fixing ring 5. The pump 4 may be separable from the fixing ring 5 or may be formed integrally with the fixing ring 5.

In the first embodiment, it is assumed that outside air is introduced into the exterior case 2 from a gap between the pump 4 and the fixing ring 5. However, in this embodiment, the exterior is introduced from the pinhole-shaped outside air introduction hole 5 h. Outside air is introduced into the case 2. The outside air introduction hole 5h may be provided at another position.

4). Fourth Embodiment A fourth embodiment of the present invention will be described with reference to FIGS. This embodiment has the same basic configuration and function as those of the first embodiment, and is mainly different in the shapes of the outer case 2, the container body 3, and the fixing ring 5. Hereinafter, the difference will be mainly described.

In the present embodiment, the flange portion 3c includes an annular portion 3c1 and a protruding portion 3c2. The protruding portion 3c2 protrudes radially outward from the annular portion 3c1. A plurality (two in the present embodiment) of the protruding portions 3c2 are provided at intervals in the circumferential direction. A cutout portion 2 h is provided at the upper end of the outer case 2. The notch 2h has a complementary shape with the protrusion 3c2. When the container body 3 is accommodated in the exterior case 2 and the protrusion 3c2 is engaged with the notch 2h, the container body 3 is positioned in the circumferential direction with respect to the exterior case 2. At this time, the annular portion 3 c 1 is not supported by the exterior case 2.

The reduced diameter portion 2c of the outer case 2 is provided with an annular recess 2i. An annular convex portion 5 g is provided on the inner peripheral surface of the fixing ring 5. When the reduced diameter portion 2 c is inserted into the fixing ring 5, the annular concave portion 2 i and the annular convex portion 5 g are engaged, and the fixing ring 5 is fixed to the exterior case 2.

5). Contents about viewpoints regarding fifth to seventh embodiments (prior art)
2. Description of the Related Art Conventionally, there has been known a delamination container that suppresses air from entering the inside of a container by shrinking an inner bag as the contents are reduced (for example, Patent Document 2).

(Task)
The delamination container of Patent Document 2 is configured by covering the container main body housing portion formed by blow molding with a shrink film, but there is a case where an appearance that gives a higher-class feeling is required.

The present invention has been made in view of such circumstances, and provides a delamination container that has a high degree of freedom in appearance design and can discharge contents by applying a compression force.

(Solution)
According to the present invention, there is provided a delamination container including a container main body and a cylindrical outer case attached to the container main body, the container main body including a storage portion for storing contents, and the storage portion from the storage portion. The container body includes an outer shell and an inner bag, the inner bag is configured to contract as the content decreases, and the outer case includes the housing portion. The delamination container is provided so as to cover at least a part of the delamination container, and the delamination container is configured to deform the exterior case so that the contents can be discharged from the mouth.

In the delamination container according to the present invention, since at least a part of the accommodating portion is covered with the cylindrical outer case, the degree of freedom in designing the appearance of the container is increased. Moreover, it can be made the external appearance which brings on a high-class feeling by selecting the thing with the outstanding external appearance as an exterior case. Also, if an outer case that does not easily deform is adopted, it becomes impossible to discharge the contents by applying a pressing force to the container, but in the present invention, an outer case that can be deformed is adopted. By deforming the container body together with the outer case, the contents can be discharged even when the outer case is attached.

6). Fifth Embodiment A delamination container 1 according to a fifth embodiment of the present invention will be described with reference to FIGS. The delamination container 1 of this embodiment includes a container body 3, a cap 4 e, a valve member 11, and an exterior case 6.

<Container body 3, cap 4e, valve member 11>
As shown in FIG. 19, the container body 3 includes a storage portion 7 that stores the contents, and a mouth portion 9 that discharges the contents from the storage portion 7. The container body 3 includes an outer shell 12 and an inner bag 14 in the housing portion 7 and the mouth portion 9, and the inner bag 14 contracts away from the outer shell 12 as the contents decrease.

A bottom portion 8 is provided at one end of the accommodating portion 7. A shoulder portion 10 is provided between the accommodating portion 7 and the mouth portion 9. The accommodating portion 7 has an outer diameter larger than that of the mouth portion 9, and the outer diameter is enlarged at the shoulder portion 10. The bottom portion 8 is provided with seal portions 8a for sealing the outer shell 12 and the inner bag 14, respectively. The seal portion 8a is a seal portion of the laminated parison in blow molding using the laminated parison.

The mouth portion 9 is provided with an engaging portion 9d that can be engaged with a cap 4e with a check valve. The cap 4e may be a stopper type or may be a screw type.

As shown in FIGS. 19 to 20, the accommodating portion 7 is provided with a concave portion 7a, and the concave portion 7a is provided with an outside air introduction hole 15. The outside air introduction hole 15 is a through hole provided only in the outer shell 12, and communicates the intermediate space 21 between the outer shell 12 and the inner bag 14 and the outer space S of the container body 3.

As shown in FIGS. 22 to 24, the valve member 11 is provided on the shaft 11a that is inserted into the outside air introduction hole 15 and is slidable with respect to the outside air introduction hole 15, and on the intermediate space 21 side of the shaft 11a. The lid portion 11c has a larger cross-sectional area than the shaft portion 11a, and the locking portion 11b is provided on the outer space S side of the shaft portion 11a and prevents the valve member 11 from entering the intermediate space 21.

The lid portion 11c is configured to substantially close the outside air introduction hole 15 when the outer shell 12 is compressed, and has a shape in which the cross-sectional area decreases as the shaft portion 11a is approached. Moreover, the latching | locking part 11b is comprised so that air can be introduce | transduced into the intermediate | middle space 21 when decompress | restoring after the outer shell 12 is compressed. When the outer shell 12 is compressed, the pressure in the intermediate space 21 becomes higher than the external pressure, and the air in the intermediate space 21 leaks out from the outside air introduction hole 15. The lid portion 11 c moves toward the outside air introduction hole 15 by the pressure difference and the air flow, and the lid portion 11 c closes the outside air introduction hole 15. Since the cross-sectional area becomes smaller as the lid portion 11c approaches the shaft portion 11a, the lid portion 11c easily fits in the outside air introduction hole 15 and closes the outside air introduction hole 15.

When the outer shell 12 is further compressed in this state, the pressure in the intermediate space 21 is increased. As a result, the inner bag 14 is compressed and the contents in the inner bag 14 are discharged. Further, when the pressing force to the outer shell 12 is released, the outer shell 12 tries to recover by its own elasticity. At this time, the lid portion 11 c is separated from the outside air introduction hole 15, the outside air introduction hole 15 is unblocked, and outside air is introduced into the intermediate space 21. In addition, a flow passage 11d is provided in the locking portion 11b so that the locking portion 11b does not block the outside air introduction hole 15, and even if the locking portion 11b is in contact with the outer shell 12, the flow can be prevented. Outside air can be introduced into the intermediate space 21 through the passage 11 d and the outside air introduction hole 15.

Next, the layer structure of the container body 3 will be described in more detail. The container body 3 includes an outer shell 12 and an inner bag 14. The outer shell 12 is formed to be thicker than the inner bag 14 so that the restoring property is high. The layer configuration and materials of the outer shell 12 and the inner bag 14 are as described in the first embodiment.

<Exterior case 6>
The outer case 6 has a cylindrical shape and is mounted so as to cover at least a part of the accommodating portion 7. The exterior case 6 includes a trunk 6a, an upper wall 6b, an opening 6c on the bottom 8 side, and an opening 6d on the mouth 9 side. The trunk | drum 6a is a substantially cylindrical shape, and a cross-sectional area is substantially constant along the height direction of the accommodating part 7. As shown in FIG. The accommodating portion 7 has a reduced diameter near the central position CP in the height direction of the accommodating portion 7, and a gap 22 is provided between the accommodating portion 7 and the outer case 6 as shown in FIG. 22. The thermal insulation performance of the delamination container 1 is enhanced by the gap 22. On the other hand, the accommodating portion 7 is in contact with the outer case 6 at a position P1 that is lower than the central position CP and a position P2 that is higher.

No bottom wall is provided on the bottom 8 side of the outer case 6, and the opening 6c matches the inner surface shape of the body 6a. The opening 6d is smaller than the opening 6c. The opening 6 d is larger than the outer diameter of the mouth portion 9 and smaller than the outer diameter of the shoulder portion 10. For this reason, when the exterior case 6 is mounted so as to be covered from the mouth portion 9 side, the upper wall 6b comes into contact with the shoulder portion 10, and the exterior case 6 is positioned in the height direction with respect to the container body 3.

As shown in FIGS. 19 to 20, the upper wall 6b is disposed between the cap 4e and the shoulder 10. For this reason, when the cap 4e is tightened, the upper wall 6b is clamped and fixed by the cap 4e and the shoulder 10.

The outer case 6 is formed of a thickness and a material that can be easily deformed, and the outer case 6 is deformed by applying a pressing force to the outer case 6 while the outer case 6 is attached to the container body 3. The inner bag 14 is compressed through the intermediate space 21 and the intermediate space 21, and the contents in the inner bag 14 are discharged.

The outer case 6 has an appropriate restoring force, and is configured to be restored to the original shape by the restoring force of the outer case 6 when the pressing force is removed after the outer case 6 is deformed by applying a pressing force. It is preferable. In this case, it is possible to repeatedly discharge the contents by repeatedly deforming the outer case 6.

Specifically, it is preferable that the outer case 6 is configured such that the maximum value of the pushing amount when a pressing force of 2 kg is applied with an indenter having a diameter of 15 mm is 5 mm or more. In this case, since the exterior case 6 is easily deformed, the contents can be easily discharged. The maximum value of the push-in amount is the maximum value obtained by measuring the push-in amount at various parts of the outer case 6, and corresponds to the push-in amount at the part that is most likely to be pushed in the outer case 6. This maximum value is, for example, 5 to 40 mm, specifically, for example, 5, 10, 15, 20, 25, 30, 35, 40 mm, and is within the range between any two of the numerical values exemplified here. It may be. Further, (the maximum value of the push-in amount) / (the diameter of the accommodating portion 7) is preferably 0.1 or more, for example, 0.1 to 0.7, specifically, for example, 0.1, 0.2 , 0.3, 0.4, 0.5, 0.6, 0.7, and may be within a range between any two of the numerical values exemplified here.

More preferably, the outer case 6 is configured such that the maximum value of the push-in amount at the portion facing the center in the height direction of the accommodating portion 7 becomes the above-described value. This is because when the contents are discharged, the vicinity of the center in the height direction of the accommodating portion 7 is often pressed, and therefore it is preferable that the outer case 6 is easily deformed at this portion.

The material of the outer case 6 is not limited as long as it can be deformed by applying a pressing force to the outer case 6. The outer case 6 is, for example, an injection molded body. By forming the outer case 6 by injection molding, the appearance can be improved.

The thickness of the outer case 6 is preferably 0.2 mm or more, and more preferably 0.5 mm or more. This thickness is, for example, 0.2 to 3 mm, specifically, for example, 0.2, 0.5, 1, 1.5, 2, 2.5, 3 mm. It may be within a range between any two.

The exterior case 6 includes a first region 61 and a second region 62. The first region 61 is disposed at a position facing the center in the height direction of the accommodating portion 7 and is assumed to apply a pressing force to the first region 61 to discharge the contents. It is preferable that the outer case 6 is easily deformed in the region 61, and it is preferable that the maximum pushing amount in the first region 61 is set to the above-described value.

The first region 61 is formed of a first material (soft material) having a lower bending elastic modulus than the second material constituting the second region 62 so that the exterior case 6 is easily deformed in the first region 61. Is preferred. Such an outer case 6 can be formed by two-color molding or insert molding. As the first material, elastomer (olefin elastomer, styrene elastomer, etc.), natural rubber, synthetic rubber (silicone rubber, etc.), EVA, low density polyethylene, soft polyvinyl chloride, or a laminate of these materials Etc. As the second material, resin materials (high density polyethylene, polypropylene, PET, acrylic resin, nylon resin, ABS resin, hard polyvinyl chloride, polystyrene, fiber reinforced plastic, etc.), wood, metal, glass, ceramics, or these The thing which laminated | stacked material etc. are mentioned.

Further, the thickness of the first region 61 may be made thinner than that of the second region 62 so that the exterior case 6 is easily deformed in the first region 61. In this case, the thickness of the first region 61 / the thickness of the second region 62 is preferably 0.95 or less. This thickness is, for example, 0.3 to 0.95, specifically, for example, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, and may be in the range between any two of the numerical values exemplified here.

The outer case 6 may be decorated on the outer surface in order to further improve the appearance.

7). Sixth Embodiment A delamination container 1 according to a sixth embodiment of the present invention will be described with reference to FIGS. The present embodiment is different from the fifth embodiment in the configuration of the outer case 6. The configurations of the container body 3, the cap 4e, and the valve member 11 are the same as those in the fifth embodiment.

In the present embodiment, the outer case 6 includes a main body member 16 and a bottom member 17. The main body member 16 is disposed at a position closer to the mouth portion 9 than the bottom member 17.

The body member 16 includes a body portion 16a, an upper wall 16b, an opening portion 16c on the bottom portion 8 side, and an opening portion 16d on the mouth portion 9 side. The body portion 16a is provided with a panel portion 16a1 formed by recessing the body portion 16a. It is assumed that the panel portion 16a1 corresponds to the first region 61 and the other portions correspond to the second region 62, and the contents are discharged by applying a pressing force to the panel portion 16a1. Therefore, it is preferable to form the panel part 16a1 with a softer material than other parts. The main body member 16 can be formed by two-color molding.

No bottom wall is provided on the bottom 8 side of the main body member 16, and the opening 16c matches the inner surface shape of the body 16a. The opening 16d is smaller than the opening 16c. The opening portion 16 d is larger than the outer diameter of the mouth portion 9 and smaller than the outer diameter of the shoulder portion 10. For this reason, when the main body member 16 is mounted, the upper wall 16 b comes into contact with the shoulder portion 10 and the main body member 16 is positioned in the height direction with respect to the container main body 3.

The main body member 16 has a recessed panel portion 16a1, and the inner diameter of the main body member 16 at the panel portion 16a1 is smaller than the outer diameter of the housing portion 7 at a position higher than the panel portion 16a1. For this reason, the main body member 16 cannot be mounted so as to be covered from the mouth 9 side. Therefore, in this embodiment, the main body member 16 is configured by combining a pair of main body constituting members 26 as shown in FIG. It is preferable that a pair of main body structural member 26 is the same shape.

A reduced diameter portion 26f is provided at the lower end of the main body member 16, and an annular protruding portion 26g that protrudes radially outward is provided on the reduced diameter portion 26f. Further, an annular projecting portion 17 a projecting radially inward is provided in the vicinity of the upper end of the bottom member 17. By inserting the reduced diameter portion 26f into the bottom member 17, the protruding portion 26g and the protruding portion 17a are engaged. As a result, the main body member 16 and the bottom member 17 are engaged with each other to form an integral exterior case 6.

8). Seventh Embodiment A delamination container 1 according to a seventh embodiment of the present invention will be described with reference to FIGS. The present embodiment is similar to the fifth embodiment, and the main difference is the shape of the container body 3 and the first region 61 difference. Hereinafter, the difference will be mainly described.

The container body 3 of the present embodiment has the shape shown in FIG. 31, but its basic configuration and function are the same as those of the fifth embodiment. In the present embodiment, the first region 61 is provided over the entire circumferential direction. According to such a configuration, the contents can be discharged by pressing an arbitrary position in the circumferential direction in the vicinity of the center in the height direction of the accommodating portion 7.

9. Eighth Embodiment A delamination container 1 according to an eighth embodiment of the present invention will be described with reference to FIGS. This embodiment is similar to the seventh embodiment, and the difference in the configuration of the outer case 6 is the main difference. Hereinafter, the difference will be mainly described.

The configuration of the container body 3 of the present embodiment is the same as that of the seventh embodiment. The exterior case 6 includes a main body member 36 and a bottom member 37. The main body member 36 is disposed at a position closer to the mouth portion 9 than the bottom member 37. The main body member 36 and the bottom member 37 can be formed by injection molding.

The main body member 36 includes a trunk portion 36a, an upper wall 36b, an opening portion 36c on the bottom portion 8 side, and an opening portion 36d on the mouth portion 9 side. The trunk portion 36a has a circular cross section on the mouth portion 9 side and an elliptical cross section on the bottom portion 8 side. That is, the cross-sectional shape of the trunk portion 36 a gradually changes from a circular shape to an elliptic shape from the mouth portion 9 toward the bottom portion 8. Further, the cross-sectional shape of the trunk portion 36 a gradually increases from the mouth portion 9 toward the bottom portion 8. No bottom wall is provided on the bottom 8 side of the main body member 36, and the opening 36c matches the inner surface shape of the body 36a on the bottom 8 side. The opening 36d is smaller than the opening 36c. The opening 36 d is larger than the outer diameter of the mouth portion 9 and smaller than the outer diameter of the shoulder portion 10. For this reason, when the main body member 36 is mounted so as to be covered from the mouth portion 9 side, the upper wall 36b comes into contact with the shoulder portion 10, and the main body member 36 is positioned in the height direction with respect to the container main body 3.

The main body member 36 includes a pair of convex portions 36e. The pair of convex portions 36e are opposed to each other and project toward the bottom portion 8. A pair of base portions 36f is provided between the pair of convex portions 36e. The pair of base portions 36f are opposed to each other. At the end of the main body member 36 on the bottom 8 side, a convex portion 36e, a base portion 36f, a convex portion 36e, and a base portion 36f are arranged in this order and have a wave shape. The distance between the pair of convex portions 36e is shorter than the distance between the pair of base portions 36f.

As shown in FIG. 36, the convex portion 36e has a width of 80% or more of the entire width of the main body member 36 when the convex portion 36e is viewed from the front. In the present embodiment, the convex portion 36 e is provided over the entire width direction of the main body member 36, and thus has a width of 100% of the entire width of the main body member 36.

The convex portion 36e has an inclined surface 36e1 that is inclined so that the protruding amount of the convex portion 36e increases toward the center in the width direction of the main body member 36 when the convex portion 36e is viewed from the front. For this reason, the convex part 36e has a taper shape. The tip 36e2 of the convex portion 36e is curved so that the bottom 8 side is convex.

The bottom member 37 is fixed to the bottom 8 of the container body 3. The end of the bottom member 37 on the mouth 9 side is complementary to the end of the main body member 36 on the bottom 8 side. The bottom member 37 is not engaged with the main body member 36. For this reason, the end of the main body member 36 on the bottom 8 side is free and can be easily deformed.

In use, the content can be discharged by applying a pressing force to the convex portion 36e.

10. Other Embodiments In the fifth and sixth embodiments, the pair of first regions 61 are provided so as to face each other, but the first region 61 may be provided only in one place.
In the sixth and eighth embodiments, the bottom member can be omitted.
The exterior case 6 may be fixed to the container body 3 by another mechanism instead of being fixed by being sandwiched between the cap 4e and the shoulder 10.
-Instead of providing several area | regions from which material differs, you may form the whole exterior case 6 with a soft material.
As long as the valve member 11 has a function of closing the outside air introduction hole 15 when a pressing force is applied to the exterior case 6 and removing the pressing force, the valve member 11 has another configuration. It may be.
-The 2nd field 62 may be formed with non-resin materials, such as metal and ceramics.
In the eighth embodiment, the main body member 36 and the bottom member 37 may be engaged at the base portion 36f.
-Instead of incorporating a check valve in the cap 4e, a separate check valve may be disposed between the cap 4e and the container body 3.

1: Laminated peeling container, 2: exterior case, 2a: body part, 2b: bottom part, 2c: reduced diameter part, 2d: support part, 2e: external air flow path, 2f: male screw part, 2g: enlarged diameter part, 2h: Notch part, 2i: annular recess, 3: container body, 3a: trunk part, 3b: bottom part, 3c: flange part, 3c1: annular part, 3c2: projecting part, 3d: mouth part, 3e: male thread part, 3f: top surface 4, 4 pump: 4a: body portion, 4a1: cylinder portion, 4a2: cylinder portion, 4a3: upper wall portion, 4a4: female screw portion, 4a5: flange portion, 4b: piston portion, 4c: nozzle, 4d: tube, 4e : Cap, 5: fixing ring, 5a: outer cylinder part, 5b: upper wall part, 5c: opening part, 5d: inner cylinder part, 5e: external air flow path, 5f: female thread part, 5g: annular convex part, 5h: Outside air introduction hole, 5i: projecting portion, 5j: recessed portion, 5k: cylindrical portion, 5l: female screw portion, 6 Exterior case, 6a: trunk, 6b: upper wall, 6c: opening, 6d: opening, 7: housing, 7a: recess, 8: bottom, 8a: seal, 9: mouth, 9d: engagement Part, 10: shoulder part, 11: valve member, 11a: shaft part, 11b: locking part, 11c: lid part, 11d: flow passage, 12: outer shell, 12a: clamping part, 14: inner bag, 14a: Inner bag exposed portion, 15: outside air introduction hole, 16: body member, 16a: trunk portion, 16a1: panel portion, 16b: upper wall, 16c: opening portion, 16d: opening portion, 17: bottom portion member, 17a: protruding portion , 18: trunk gap, 19: bottom gap, 21: intermediate space, 22: gap, 26: body component, 26f: reduced diameter part, 26g: protrusion, 36: body member, 36a: trunk, 36b: Upper wall, 36c: opening, 36d: opening, 36e: convex, 36e1: inclined surface, 36e2: tip 36f: base, 37: bottom member, 61: first region, 62: second region, CP: middle position, S: outer space, V1: volume

Claims (31)

A laminate peeling container comprising a container body and a cylindrical outer case attached to the container body,
The container body has an outer shell and an inner bag, and the inner bag shrinks as the contents are reduced. 2. The delamination container according to claim 1, wherein the outer case accommodates the container main body therein. Each of the container body and the exterior case includes a body part,
The delamination container according to claim 2, wherein a body gap is provided between a body part of the container body and a body part of the exterior case. When the thickness of the outer shell of the container body is Ts and the thickness of the body gap is Tg,
The delamination container according to claim 3, wherein Tg / Ts ≧ 0.3. The delamination container according to claim 4, wherein Tg / Ts ≧ 0.5. The container body includes a body part and a flange part protruding radially outward from the body part,
6. The delamination container according to claim 2, wherein the flange portion is supported by the exterior case. The flange portion includes an annular portion that protrudes annularly radially outward from the body portion, and a protruding portion that protrudes radially outward from the annular portion,
The lamination peeling container according to claim 6 with which said projection part is supported by said exterior case. The laminated peeling container according to claim 6 or 7, wherein the flange portion is hollow. 9. The delamination container according to any one of claims 6 to 8, wherein an external airflow passage is provided between the flange portion and the outer case. Each of the container body and the outer case includes a bottom portion,
10. The delamination container according to claim 2, wherein a bottom gap is provided between the bottom of the container body and the bottom of the outer case. 11. The delamination container according to claim 10, wherein the container main body is provided with an outside air introduction hole for introducing outside air between the outer shell and the inner bag. The inner bag has an inner bag exposed portion exposed to the outside on the bottom side,
The delamination container according to claim 11, wherein the outside air introduction hole is provided between the inner bag exposed portion and the outer shell. The container body is filled with the contents,
The gap between the inner bag and the outer shell is provided between the inner bag and the outer shell in a state before the user starts discharging the content after filling the content. 2. A delamination container according to 1. When the volume of the outer shell is Vs and the volume of the contents contained in the inner bag is Vc,
The delamination container according to claim 13, wherein Vc / Vs ≦ 0.95. The delamination container includes a fixing ring,
The delamination container according to any one of claims 2 to 14, wherein the container body and the outer case are attached to the fixing ring. The delamination container includes a pump for discharging the contents,
The delamination container according to claim 15, wherein the pump is attached to the fixing ring. The container body includes a storage portion that stores the contents, and a mouth portion that discharges the contents from the storage portion,
The exterior case is mounted so as to cover at least a part of the housing portion,
2. The delamination container according to claim 1, wherein the delamination container is configured to deform the outer case so that the contents can be discharged from the mouth. 18. The outer case according to claim 17, wherein the outer case is configured to be restored to its original shape by a restoring force of the outer case when the outer case is deformed by applying a pressing force to remove the pressing force. Delamination container. 19. The delamination container according to claim 17 or 18, wherein the outer case is configured such that the maximum value of the pushing amount when a pressing force of 2 kg is applied with an indenter having a diameter of 15 mm is 5 mm or more. 21. The delamination container according to claim 19, wherein the pushing amount is 10 mm or more. 21. The delamination container according to any one of claims 17 to 20, wherein the outer case is an injection-molded body. The exterior case includes a first region and a second region,
The first region according to any one of claims 17 to 21, wherein the first region is formed of a material having a lower bending elastic modulus than a material constituting the second region, or is thinner than the second region. The laminated peeling container as described. 23. The delamination container according to claim 22, wherein the first region is disposed at a position facing the center in the height direction of the housing portion. The delamination container according to any one of claims 17 to 23, wherein the outer case is mounted so as to cover the container body from the mouth side of the container body. The exterior case includes a main body member,
The delamination container according to any one of claims 17 to 23, wherein the main body member is configured by combining a pair of main body constituting members. The exterior case includes a bottom member,
The body member is disposed at a position closer to the mouth than the bottom member,
26. The delamination container according to claim 25, wherein the main body member is engaged with the bottom member. The container body includes a bottom that is the bottom of the housing portion,
The exterior case includes a main body member,
The main body member includes a pair of convex portions,
The delamination container according to any one of claims 17 to 23, wherein the pair of convex portions oppose each other and project toward the bottom portion of the container body. 28. The delamination container according to claim 27, wherein the convex portion has a width of 80% or more of the entire width of the main body member when the convex portion is viewed from the front. 29. The convex portion according to claim 28, wherein the convex portion has an inclined surface that is inclined so that a protruding amount of the convex portion increases toward a center in a width direction of the main body member when the convex portion is viewed from the front. Delamination container. The exterior case includes a bottom member,
The body member is disposed at a position closer to the mouth than the bottom member,
The laminated peeling container according to any one of claims 27 to 29, wherein the main body member is not engaged with the bottom member at least at the convex portion. A cap attached to the mouth;
The laminated peeling container according to any one of claims 17 to 30, wherein the outer case is sandwiched and fixed by the cap and the container main body.

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