JP5050444B2 - Sealed container and cap device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hermetically-sealed container with a wide mouth which can be easily opened with one motion and closed again with no waste generated, furthermore, facilitate getting contents out of it. <P>SOLUTION: The hermetically-sealed container 10 includes a container body 11 made of flexible material with an opening 11a at one end and the other end sealed, and a shape retaining ring 12 made of hard material being formed separately from and adhered to the opening 11a of the container body 11 to define the configuration of the opening 11a. On the shape retaining ring 12, a cap 13 is mounted and fixed to seal the opening 11a of the container body 11. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a sealed container filled with contents such as beverages and gel-like liquids, and a cap device for the sealed container, and in particular, can be easily opened by a single operation, and can be reclosed (a cap is put on the container body again). In particular, the present invention relates to a wide-mouthed sealed container and a cap device that do not generate dust.

  Conventionally, containers for containing contents such as beverages in a sealed manner have been widely used. In general, such a container is manufactured by fixing a lid material to the container body by heat sealing and plugging an overcap from above the lid material.

  Such a container is comprised from three members which consist of a container main body, a cover material, and an overcap as mentioned above. Therefore, when opening the container, it is necessary to perform a two-step operation of first removing the overcap and then opening the lid. On the other hand, when the container is opened and reclosed (the cap is put on the container body again) while leaving the contents of the container, the overcap is directly put on the container body. In this case, since the lid cannot be attached to the container body again, the lid is discarded as garbage.

Patent Document 1 discloses a container (seal gazette bag) for storing contents such as food and drink. This container has a spout that can be repeatedly opened and closed at the upper center, and the contents can be sucked out from the spout. However, since such a spout has a relatively small diameter, the contents may not be sufficiently sucked out, for example, when the contents contain a large amount of solids.
Japanese Patent Laid-Open No. 10-59388

  The present invention has been made in consideration of such points, and can be easily opened by a single operation, is free from dust during reclosing, and has a wide-mouthed sealed container from which the contents can be easily taken out. An object is to provide a cap device.

The present invention provides a container body made of a flexible material that is open on one side and sealed on the other side, and is attached to one side opening of the container body and provided separately from the container body. A shape-retaining ring made of a hard material that defines the shape and a cap that is detachably and recloseably attached to the shape-retaining ring and seals one side opening of the container body. The cap is fixed to the shape-retaining ring in advance over the entire circumference. The shape-retaining ring has an L-shaped vertical section, and the L-shaped shape includes a vertical portion on the inner side of the container body, a horizontal portion that protrudes outward from the vertical portion and is fitted with a cap. It is the sealed container characterized by comprising.

  The present invention is a sealed container characterized in that a tapered portion is formed inside the lower end of the vertical portion of the shape retaining ring so that the inner diameter of the vertical portion expands downward.

  According to the present invention, the vertical portion of the shape retaining ring has a thickness of 0.3 mm to 2.0 mm.

  According to the present invention, the cap has a cap body including a surrounding portion that covers the horizontal portion of the shape retaining ring from the side, and a protrusion that fits the horizontal portion of the shape retaining ring is provided inside the surrounding portion of the cap. It is the sealed container characterized by having.

  The present invention is a sealed container characterized in that the opening of the container body is circular or elliptical.

  The present invention is the sealed container characterized in that the cap is fixed to the shape retaining ring by an ultrasonic seal.

  In the present invention, the cap is composed of a cap body and an in-mold label made of a multilayer film attached to the inner surface of the cap body, and the innermost layer of the in-mold label is fixed to the shape retaining ring by an ultrasonic seal. Is a sealed container characterized by being peelable when the cap is opened.

  In the present invention, the cap includes a cap body and an in-mold label made of a multilayer film attached to the inner surface of the cap body. The in-mold label is a layer of any one of aluminum foil, aluminum-deposited PET, and a transparent barrier film. It is a sealed container characterized by including.

  In the present invention, the cap is composed of a cap body and an in-mold label made of a multilayer film attached to the inner surface of the cap body, and the cap body is composed of an olefin-based synthetic resin having a flexural modulus of 800 MPa or less, preferably 300 MPa. It is a sealed container comprising an olefin-based synthetic resin having the following flexibility.

The present invention provides a shape retaining ring made of a hard material that is bonded to one side opening of the container body and provided separately from the container body, and defines the shape of the one side opening of the container body, and is removable to the shape retaining ring; A cap that is removably mounted and seals one side opening of the container body, and the cap is previously fixed to the shape retaining ring over the entire circumference, and the shape retaining ring has an L-shaped vertical cross section. The character shape is a cap device characterized by comprising a vertical part on the inner surface side of the container main body and a horizontal part protruding outward from the vertical part and fitted with a cap.

  According to the present invention, since the sealed container does not have the lid member, the sealed container can be easily opened by one operation when the contents in the container body are taken out. Moreover, since the sealed container does not have a lid member, no dust is generated during reclosing.

  Further, according to the present invention, the shape retaining ring is composed of a vertical portion on the inner surface side of the container body and a horizontal portion projecting outward from the vertical portion, so that there is a portion projecting inside the shape retaining ring. The contents can be easily taken out from the container main body.

  Furthermore, according to the present invention, since the tapered portion in which the inner diameter of the vertical portion expands downward is formed inside the lower end of the vertical portion of the shape retaining ring, there is no portion protruding inside the shape retaining ring. The contents can be easily taken out from the container body.

  Furthermore, according to the present invention, since the protrusion that fits the horizontal portion of the shape retaining ring is provided inside the cap, the cap can be attached to the shape retaining ring and the sealed container can be reclosed.

  Furthermore, according to the present invention, since the cap is fixed to the shape retaining ring with an ultrasonic seal, unlike the case of using a heat seal, even if the cap is thick (for example, 0.5 mm or more). The cap can be easily attached to the shape retaining ring.

  Furthermore, according to the present invention, since the innermost layer of the in-mold label of the cap can be peeled when the cap is opened, the sealed container can be easily opened when taking out the contents in the container body. it can.

  Furthermore, according to the present invention, since the in-mold label of the cap is made of aluminum foil, aluminum-deposited PET, or a transparent barrier film, the sealing and barrier properties of the contents can be improved, It can be protected from the outside to prevent corruption of the contents.

  Furthermore, according to the present invention, the cap body is made of an olefin-based synthetic resin having a flexural modulus of 800 MPa or less, and preferably made of a synthetic resin having a flexural modulus of 300 MPa or less. It can be easily removed.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view showing an embodiment of the present invention. 3 is an enlarged view of a portion A in FIG. 2, and FIG. 4 is a perspective view of the container main body and the shape retaining ring in a state where the cap is removed. FIG. 5 is a schematic cross-sectional view showing the internal structure of the cap.

First, the outline of the sealed container according to the present embodiment will be described with reference to FIGS.
As shown in FIGS. 1, 2, and 4, the sealed container 10 includes a container body 11 made of a flexible material that is open on one side and sealed on the other side (reference numeral 11 b), and one side opening 11 a of the container body 11. And a cylindrical shape retaining ring 12 that is provided separately from the container body 11 and defines the shape of the one side opening 11a of the container body 11.

  The shape retaining ring 12 is made of a hard material as compared with the container body 11 as will be described later. Further, the opening 11a of the container body 11 has a circular shape or an elliptical shape. Further, a cap 13 for sealing the one side opening 11 a of the container body 11 is attached to the shape retaining ring 12. The cap 13 is fixed to the shape retaining ring 12.

  Further, as shown in FIG. 2, a cap device 14 is configured by combining the shape retaining ring 12 and the cap 13. In the cap device 14, the configuration of the shape retaining ring 12 and the cap 13 is the same as the configuration of the shape retaining ring 12 and the cap 13 in the sealed container 10.

  By the way, as shown in FIG. 3, the shape retaining ring 12 has an L-shaped vertical section. The L-shape of the shape retaining ring 12 includes a vertical portion 12a on the inner surface side of the container body 11 and a horizontal portion 12b protruding outward from the vertical portion 12a. The vertical portion 12 a of the shape retaining ring 12 is fixed to the inner peripheral surface of the one side opening 11 a of the container body 11 over the entire circumference. Furthermore, a tapered portion 12c is formed inside the lower end of the vertical portion 12a of the shape retaining ring 12 so that the inner diameter of the vertical portion 12a gradually increases downward. The tapered portion 12c plays a role of preventing the contents from being caught by the lower end of the vertical portion 12a of the shape retaining ring 12 when the contents are taken out from the container body 11.

  The shape retaining ring 12 is made of a harder material than the container body 11 as described above, but is flexible enough to press the shape retaining ring 12 and take out the contents. Further, the shape retaining ring 12 is made of a material that is easily dissolved by heat so that the shape retaining ring 12 and the cap 13 can be fixed by an ultrasonic seal as will be described later.

  Further, the vertical portion 12a of the shape retaining ring 12 preferably has a thickness W of 0.3 mm to 2.0 mm. When the thickness W is less than 0.3 mm, the strength of the vertical portion 12a is insufficient. On the other hand, when the thickness W exceeds 2.0 mm, the shape retaining ring 12 becomes hard, and it becomes difficult to press the container body 11 and the shape retaining ring 12 and take out the contents in the container body 11.

  The container body 11 having such a structure is, for example, a tube having a barrier property, and the layer structure is a linear low density polyethylene resin (LLDPE) / PET / ink / AL / LLDPE or CPP / PET / ink. A laminate tube having a structure of / AL vapor-deposited PET / CPP is used. Further, when it is desired to show the contents in the container main body 11, a transparent vapor deposition film or an eval film may be used in place of the AL in the layer structure described above. Alternatively, the container body 11 may be a multilayer extruded tube having a barrier property (the layer structure is made of PP / EVOH / PE or CPP / EVOH / CPP).

  On the other hand, the shape retaining ring 12 is molded by injection molding, compression molding or the like. As a method for adhering the shape retaining ring 12 and the container main body 11, an insert molding method in which the main body container 11 is inserted into a mold for molding the shape retaining ring 12 and adhered simultaneously with the molding, or the shape retaining ring 12 is molded in advance. In addition, a method of attaching to the container body 11 by thermal bonding may be used.

  As shown in FIG. 5, the cap 13 includes a cap body 13b and an in-mold label 13c made of a multilayer film attached to the inner surface of the cap body 13b. Furthermore, as shown in FIG. 3, the cap body 13b includes a surrounding portion 13k that covers the horizontal portion 12b of the shape retaining ring 12 from the side, and the horizontal portion 12b of the shape retaining ring 12 and the inside of the surrounding portion 13k. A protruding portion 13a to be fitted is provided.

  The cap body 13b is made of a relatively soft olefin-based synthetic resin having a flexural modulus of 800 MPa or less, preferably 300 MPa or less, such as a soft PP resin such as J-5910 (trade name) manufactured by Prime Polymer Co., Ltd., or a low-density polyethylene resin ( (Hereinafter also referred to as LDPE) or linear low density polyethylene resin (hereinafter also referred to as LLDPE). Further, as will be described later, when the in-mold label 13c of the cap 13 and the horizontal portion 12b of the shape retaining ring 12 are secured by an ultrasonic seal, the cap body 13b is not directly secured to the cap body 13b and the shape retaining ring 12. Thus, it is made of a material different from the shape retaining ring 12.

  As described above, the in-mold label 13c is made of a multilayer film in which a plurality of layers 13d, 13e, 13f, and 13g are laminated to each other (see FIG. 5). Of these, the innermost layer 13g is made of an easy peel film, and when the cap 13 is opened, a part thereof is peeled off and remains on the shape retaining ring 12 side. Further, a layer 13f made of PET, for example, a layer 13e made of aluminum foil, and an outermost layer 13d are laminated in this order above the innermost layer 13g. Further, an adhesive layer 13h such as a dry laminate layer (DL) for bonding the layers is provided between the layers 13d, 13e, 13f, and 13g.

  Further, the innermost layer 13g of the in-mold label 13c is fixed to the horizontal portion 12b of the shape retaining ring 12 by an ultrasonic seal at a position indicated by reference numeral 15 in FIG. In this case, since the innermost layer 13g of the in-mold label 13c is fixed to the shape retaining ring 12 at the ultrasonic seal portion 15 extending all around the circumference, the sealing property between the shape retaining ring 12 and the cap 13 is improved. be able to. The ultrasonic seal is a method in which the shape-retaining ring 12 and the cap 13 are vibrated by ultrasonic waves, and the shape-retaining ring 12 is melted by the frictional heat generated to fix the shape-retaining ring 12 and the cap 13 together. is there.

  The outermost layer 13d is preferably made of the same material as the cap body 13b so that the outermost layer 13d and the cap body 13b can be easily joined to each other. Therefore, when the cap body 13b is made of a soft PP resin, the outermost layer 13d is preferably made of a CPP film. On the other hand, when the cap body 13b is made of LDPE, the outermost layer 13d is also preferably made of LDPE. When the cap body 13b is made of LLDPE, the outermost layer 13d is also preferably made of LLDPE.

  In addition, it may replace with the layer 13e and the layer 13f of the in-mold label 13c, and the single layer which consists of aluminum vapor deposition PET or a transparent barrier film may be provided.

The following can be considered as a specific layer structure of the in-mold label 13c.
(1) Easy peel film / DL / PET / AL / DL / CPP film (when cap body 13b is PP)
(2) Easy peel film / DL / AL vapor deposited PET / DL / CPP film (when cap body 13b is PP)
(3) Easy peel film / DL / transparent deposited PET / DL / CPP film (when cap body 13b is PP)
In the layer structures (1), (2), and (3), when the cap body is LLDPE or LDPE resin, LLDPE or LDPE is used instead of the CPP film.

Next, the operation of the present embodiment having such a configuration will be described.
First, in the container 10 shown in FIG. 1, the cap 13 is removed from the shape-retaining ring 12 on the container body 11 side by pulling up the left or right end of the cap 13, and the sealed container 10 is opened. At this time, the innermost layer 13g of the in-mold label 13c of the cap 13 fixed by the ultrasonic seal is firmly attached to the horizontal portion 12b of the shape retaining ring 12 over the entire circumference in the circumferential direction via the ultrasonic seal portion 15. Since the innermost layer 13g is fixed, a part of the vicinity of the ultrasonic seal part 15 is peeled off from the other part. In this case, the peeled portion of the innermost layer 13 g remains on the horizontal portion 12 b side of the shape retaining ring 12, and the other portion of the innermost layer 13 g is separated from the shape retaining ring 12 together with the cap 13. Thereby, the cap 13 is pulled away from the shape retaining ring 12. During this time, the vertical portion 12 a of the shape retaining ring 12 is relatively firmly fixed to the outer surface of the container body 11, so that the shape retaining ring 12 does not come off the container body 11.

  Next, the contents are taken out from the one-side opening 11a of the container body 11 by manually pressing the side surface of the container body 11. At this time, the shape retaining ring 12 is also deformed and the contents can be easily taken out. Further, if a part of the contents remains in the container body 11, the cap 13 can be put on the shape retaining ring 12 and reclosed to store the contents. In this case, when the cap 13 is put on the shape retaining ring 12, the horizontal portion 12 b of the shape retaining ring 12 is engaged with the protruding portion 13 a of the cap 13. Thereby, the cap 13 is attached to the shape-retaining ring 12, and the sealed container 10 can be reclosed.

  Thus, according to this Embodiment, since the sealed container 10 does not have a lid | cover material, when taking out the contents in the container main body 11, the sealed container 10 can be easily opened by one operation | movement. Further, it is possible to prevent dust from being generated when the sealed container 10 is closed again.

  In addition, according to the present embodiment, the shape retaining ring 12 includes the vertical portion 12a on the inner surface side of the container body 11 and the horizontal portion 12b protruding outward from the vertical portion 12a. The location which protrudes in 12 inside does not exist, and the content can be taken out from the container main body 11 easily.

  Furthermore, according to the present embodiment, since the tapered portion 12c in which the inner diameter of the vertical portion 12a expands downward is formed inside the lower end of the vertical portion 12a of the shape retaining ring 12, the contents from the container main body 11 Objects can be easily taken out.

  Furthermore, according to the present embodiment, since the protrusion 13 a that fits the horizontal portion 12 b of the shape retaining ring 12 is provided inside the cap 13, the cap 13 is attached to the shape retaining ring 12 and sealed. The container 10 can be reclosed.

  Furthermore, according to the present embodiment, the cap 13 is fixed to the shape-retaining ring 12 with an ultrasonic seal. Therefore, unlike the case of using a heat seal, the cap 12 is thick (for example, 0.5 mm or more). ), The cap 13 can be easily attached to the shape retaining ring 12.

  Furthermore, according to the present embodiment, the innermost layer 13g of the in-mold label 13c can be partially peeled off from other parts when the cap 13 is opened, so that the container body When taking out the contents in 11, the sealed container 10 can be easily opened.

  Furthermore, according to the present embodiment, since the in-mold label 13c of the cap 13 is made of aluminum foil, aluminum-deposited PET, or a transparent barrier film, the sealing performance and the barrier property of the contents can be improved. The contents can be protected from the outside to prevent the contents from being corrupted.

  Furthermore, according to the present embodiment, the cap body 13b is made of an olefin-based synthetic resin having a flexural modulus of 800 MPa or less, so that the cap 13 can be easily detached from the shape retaining ring 12.

The schematic sectional drawing which shows one Embodiment of the sealed container by this invention. The vertical sectional view showing one embodiment of the sealed container by the present invention. The A section enlarged view of FIG. The perspective view of the container main body and the shape retention ring in the state which removed the cap. The schematic sectional drawing which shows the internal structure of a cap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sealing container 11 Container main body 11a One side opening 12 Shape-holding ring 12a Vertical part 12b Horizontal part 12c Taper part 13 Cap 13a Protrusion part 13b Cap main body 13c In-mold label 13d, 13e, 13f, 13g Layer 13h Adhesive layer 13k Enclosure part 14 Cap device 15 Ultrasonic seal

Claims (10)

A container body made of a flexible material that is open on one side and sealed on the other side;
A shape-retaining ring made of a hard material that is bonded to one side opening of the container body and provided separately from the container body, and defines the shape of the one side opening of the container body;
A cap that is detachably and recloseably attached to the shape retaining ring and seals one side opening of the container body;
The cap is fixed to the shape retaining ring in advance around the entire circumference ,
The shape retaining ring has an L-shaped vertical cross section, and this L-shaped shape is composed of a vertical portion on the inner surface side of the container body and a horizontal portion that protrudes outward from the vertical portion and fits the cap. A sealed container characterized.   The sealed container according to claim 1, wherein a tapered portion is formed inside the lower end of the vertical portion of the shape retaining ring so that the inner diameter of the vertical portion expands downward.   3. The sealed container according to claim 1, wherein the vertical portion of the shape retaining ring has a thickness of 0.3 mm to 2.0 mm. The cap has a cap body including a surrounding portion that covers the horizontal portion of the shape retaining ring from the side,
The hermetic container according to any one of claims 1 to 3, wherein a protrusion that fits with a horizontal portion of the shape retaining ring is provided inside the enclosure of the cap.   The sealed container according to any one of claims 1 to 4, wherein the opening of the container body has a circular shape or an elliptical shape.   The sealed container according to any one of claims 1 to 5, wherein the cap is fixed to the shape retaining ring by an ultrasonic seal.   The cap is composed of an in-mold label made of a multilayer film attached to the cap body and the inner surface of the cap body, and the innermost layer of the in-mold label is fixed to the shape retaining ring by an ultrasonic seal. The sealed container according to claim 6, which can be peeled when opened.   The cap is composed of a cap body and an in-mold label made of a multilayer film attached to the inner surface of the cap body, and the in-mold label includes any layer of aluminum foil, aluminum-deposited PET, or a transparent barrier film. The sealed container according to claim 1, wherein the sealed container is a sealed container.   The cap is composed of an in-mold label made of a multilayer film attached to the cap body and an inner surface of the cap body, and the cap body is made of an olefin-based synthetic resin having a flexural modulus of 800 MPa or less. The sealed container as described in any one of thru | or 8. A shape-retaining ring made of a hard material that is bonded to one side opening of the container body and provided separately from the container body, and defines the shape of the one side opening of the container body;
A cap that is detachably and recloseably attached to the shape retaining ring and seals one side opening of the container body;
The cap is fixed to the shape retaining ring in advance around the entire circumference ,
The shape retaining ring has an L-shaped vertical cross section, and this L-shaped shape is composed of a vertical portion on the inner surface side of the container body and a horizontal portion that protrudes outward from the vertical portion and fits the cap. Cap device characterized.

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