JP2008062949A - Sealed container and cap device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wide-mouthed sealed container which can be simply opened in one operation, and can easily take out its content. <P>SOLUTION: The sealed container 10 is equipped with a container body 11 formed of a flexible material with one side opened and the other side closed, a shape-keeping ring 12 which is stuck to one side opening 11a of the container body 11 and is separated from the container body 11, and formed of a rigid material for determining the shape of the one side opening 11a of the container body 11, and a cap 13 which is fitted to the shape-keeping ring 12 to seal the one side opening 11a of the container body 11. The cap 13 comprises a cap body 13b to be fitted to the shape-keeping ring 12, and an inner lid 16 interposed between the cap body 13b and the shape-keeping ring 12. The inner lid 16 has an upper surface part 16a to cover the entire opening of the shape-keeping ring 12 and a pull-ring 16b which extends upwardly from the upper surface part 16a and is stored in the cap body 13b. <P>COPYRIGHT: (C)2008,JPO&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 more particularly, can be easily opened by a single operation and 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 an object of the present invention is to provide a wide-sealed sealed container and a cap device that can be easily opened by a single operation and can easily take out the contents.

  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 a shape, and a cap that is attached to the shape-retaining ring and seals one side opening of the container main body, the cap fitting with the shape-retaining ring, a cap main body, and the cap main body. An inner lid interposed between the shape ring, the inner lid has an upper surface portion covering the entire opening of the shape retaining ring, and a pull ring extending upward from the upper surface portion and fitting in the cap body. It is the sealed container characterized by this.

  According to the present invention, the shape retaining ring has an L-shaped vertical cross section, and the L-shaped shape includes a vertical portion on the inner surface side of the container main body and a horizontal portion protruding outward from the vertical portion. It is a sealed container.

  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.

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

  In the present invention, the cap main body of the cap has 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. This is a sealed container.

  The present invention is the sealed container characterized in that the upper surface portion of the inner lid of the cap is bonded to the horizontal portion of the shape retaining ring by ultrasonic sealing.

  In the present invention, a thin-walled portion that can be easily broken along the periphery of the same shape as the shape retaining ring opening or slightly smaller than the shape retaining ring opening is formed on the upper surface portion of the inner lid of the cap, and the upper surface portion of the inner lid pulls up the pull ring The sealed container is characterized by being cut along the thin-walled portion.

  The present invention is the sealed container characterized in that the upper surface portion of the inner lid of the cap has a multilayer film structure containing aluminum.

  The present invention is the sealed container characterized in that the cap body of the cap is made of a synthetic resin having a flexural modulus of 800 MPa or less.

  The present invention is a sealed container characterized in that a rib for attaching an inner lid after opening is provided inside a cap body.

  The present invention is attached to the one side opening of the container body and provided separately from the container body, and is attached to the shape retaining ring made of a hard material that defines the shape of the one side opening of the container body, A cap for sealing one side opening of the container body, the cap having a cap body fitted to the shape retaining ring, and an inner lid interposed between the cap body and the shape retaining ring. Is a cap device characterized by having an upper surface portion covering the entire opening of the shape retaining ring and a pull ring extending upward from the upper surface portion and fit within the cap body.

  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.

  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 upper surface portion of the inner lid of the cap is bonded to the horizontal portion of the shape retaining ring by ultrasonic sealing, the thickness of the upper surface portion of the inner lid is different from the case where heat sealing is used. Even when the thickness is thick (for example, 0.5 mm or more), the upper surface of the inner lid can be easily attached to the shape retaining ring.

  Furthermore, according to the present invention, since the thin portion that can be easily broken is formed on the upper surface portion of the inner lid of the cap, when the contents in the container body are taken out, the sealed container can be easily opened. it can.

  Furthermore, according to the present invention, the upper surface portion of the inner lid of the cap has a multilayer film structure containing aluminum, so that the sealing and barrier properties of the contents can be improved, and the contents are protected from the outside. Thus, the content can be prevented from being corrupted.

  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.

  Furthermore, according to the present invention, since the rib for attaching the inner lid after opening is provided inside the cap body, it is not necessary to discard the inner lid as waste when the sealed container is reclosed.

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 perspective view showing a method of attaching the inner lid to the cap body.

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 includes a cap main body 13 b that fits into the shape retaining ring 12, and an inner lid 16 that is interposed between the cap main body 13 b and the shape retaining ring 12. Of these, the inner lid 16 has an upper surface portion 16a that covers the entire opening of the shape retaining ring 12, and a pull ring 16b that extends upward from the upper surface portion 16a and fits in the cap body 13b.

  In addition, a thin-walled portion 16c that can be easily broken on the upper surface portion 16a of the inner lid 16 along the periphery of the same shape as the opening of the shape retaining ring 12 or along the periphery of the shape slightly smaller than the opening of the shape retaining ring 12. Is formed. That is, the upper surface portion 16a of the inner lid 16 is cut along the thin portion 16c when the pull ring 16b is pulled up.

  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 in the container body 11. Have. 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 upper surface portion 16a of the inner lid 16 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 configuration has, for example, a layer configuration of PE / PET / ink layer / dry laminate layer (DL) / AL / PE or a configuration of PE / transparent deposition PET / PE. A laminate tube is used. Alternatively, the container body 11 may be a multilayer extruded tube (for example, the layer structure is made of PE / EVOH / PE).

  On the other hand, the shape retaining ring 12 is made of, for example, high-density polyethylene (hereinafter also referred to as HDPE), low-density polyethylene resin (hereinafter also referred to as LDPE), or linear low-density polyethylene resin (hereinafter also referred to as LLDPE). It is molded by 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.

  Further, the upper surface portion 16a of the inner lid 16 of the cap 13 has a multilayer film structure containing aluminum, and the layer structure is, for example, PE / AL / PE. Further, as shown in FIG. 3, the cap body 13b includes a top plate 13d and a surrounding portion 13k that extends downward from the peripheral edge of the top plate 13d and covers the horizontal portion 12b of the shape retaining ring 12 from the side. Yes. A protruding portion 13a that fits with the horizontal portion 12b of the shape retaining ring 12 is provided on the inner side of the surrounding portion 13k. Further, as shown in FIGS. 3 and 5, after the inner lid 16 is cut and opened along the thin portion 16c on the inner side of the top plate 13d of the cap body 13b, a rib 13c for attaching the inner lid 16 is provided. There are four places.

  The cap body 13b is made of a relatively soft olefin-based synthetic resin such as LDPE or LLDPE having a flexural modulus of 800 MPa or less, preferably 300 MPa or less.

  Incidentally, as described above, the upper surface portion 16a of the inner lid 16 is fixed to the horizontal portion 12b of the shape retaining ring 12 by an ultrasonic seal at the position indicated by reference numeral 15 in FIG. In this case, since the upper surface portion 16 a of the inner lid 16 is fixed to the shape retaining ring 12 at the ultrasonic seal portion 15 extending in the entire circumference in the circumferential direction, the shape retaining ring 12 and the upper surface portion 16 a of the inner lid 16 are fixed. Sealability can be improved. The ultrasonic seal means that the shape retaining ring 12 and the upper surface portion 16a of the inner lid 16 are vibrated by ultrasonic waves, and the shape retaining ring 12 is melted by the frictional heat generated at this time, whereby the shape retaining ring 12 and the inner lid 16 are melted. The upper surface portion 16a is fixed.

Next, the operation of the present embodiment having such a configuration will be described.
First, in the sealed container 10 shown in FIG. 2, the cap 13 is lifted obliquely with respect to the container body 11, thereby releasing the fitting between the protruding portion 13 a of the cap 13 and the horizontal portion 12 b of the shape retaining ring 12, The cap 13 is removed from the shape retaining ring 12.

  Next, when the pull ring 16b of the inner lid 16 is pulled up, the upper surface portion 16a integrated with the pull ring 16b is pulled away from the horizontal portion 12b of the shape retaining ring 12, and the sealed container 10 is opened. In other words, the upper surface portion 16 a of the inner lid 16 fixed by the ultrasonic seal is firmly fixed to the horizontal portion 12 b of the shape retaining ring 12 over the entire circumference in the circumferential direction via the ultrasonic seal portion 15. Further, as described above, the thin-walled portion 16c that can be easily broken along the peripheral edge of the same shape as the opening of the shape retaining ring 12 or along the peripheral edge of a slightly smaller shape on the upper surface portion 16a of the inner lid 16. Is formed. Accordingly, the upper surface portion 16a is cut along the thin portion 16c when the pull ring 16b is pulled up. In this case, of the upper surface portion 16a of the inner lid 16, the portion outside the thin portion 16c remains on the horizontal portion 12b side of the shape retaining ring 12, and the other portion of the upper surface portion 16a is separated from the shape retaining ring 12 together with the pull ring 16b. . In this way, the inner lid 16 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.

Next, a description will be given of a method for preserving the contents by covering the cap 13 with the shape retaining ring 12 and reclosing the contents when a part of the contents remains in the container body 11.
First, as shown in FIG. 5, the removed cap body 13b is turned to the back side, and the inner lid 16 cut along the thin portion 16c is fitted into the cap body 13b. In this case, since the rib 13c for attaching the inner lid 16 is provided inside the top plate 13d of the cap body 13b, the upper surface portion 16a of the inner lid 16 is fitted to the rib 13c to cap the inner lid 16. It can be attached to the main body 13b.

  Next, the cap main body 13b and the inner lid 16 integrated in this way are put on the shape retaining ring 12. In this case, the horizontal portion 12 b of the shape retaining ring 12 is fitted with the protruding portion 13 a of the cap 13. Thereby, the cap main body 13b is integrated with the inner lid 16 and 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 cover material, when taking out the contents in the container main body 11, the sealed container 10 is simply opened by one operation | movement. Can do.

  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, since the upper surface portion 16a of the inner lid 16 of the cap 13 is bonded to the horizontal portion 12b of the shape retaining ring 12 by ultrasonic sealing, unlike using a heat seal, Even when the upper surface portion 16a of the inner lid 16 is thick (for example, 0.5 mm or more), the upper surface portion 16a of the inner lid 16 can be easily attached to the shape retaining ring 12.

  Furthermore, according to the present embodiment, since the thin portion 16c that can be easily broken is formed on the upper surface portion 16a of the inner lid 16 of the cap 13, it is easy to take out the contents in the container main body 11. The sealed container 10 can be opened.

  Furthermore, according to the present embodiment, since the upper surface portion 16a of the inner lid 16 of the cap 13 has a multilayer film structure containing aluminum, it is possible to improve the sealing property and barrier property of the contents. 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.

  Furthermore, according to the present invention, since the rib 13c for attaching the opened inner lid 16 is provided inside the cap body 13b, the inner lid 16 is disposed as waste when the sealed container 10 is reclosed. There is no need to do.

The perspective view 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 perspective view which shows the method of attaching an inner cover to a cap main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sealing container 11 Container main body 11a One side opening 12 Shape-retaining ring 12a Vertical part 12b Horizontal part 12c Taper part 13 Cap 13a Protrusion part 13b Cap main body 13c Rib 13d Top plate 13k Enclosure part 14 Cap apparatus 15 Ultrasonic sealing part 16 Middle cover 16a Upper surface part 16b Pull ring 16c Thin part

Claims (12)

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 mounted on the shape retaining ring and sealing one side opening of the container body;
The cap has a cap body that fits into the shape retaining ring, and an inner lid that is interposed between the cap body and the shape retaining ring,
The inner lid has an upper surface portion covering the entire opening of the shape retaining ring, and a pull ring extending upward from the upper surface portion and fit within the cap body.   The shape-retaining ring has an L-shaped vertical section, and the L-shaped shape includes a vertical portion on the inner surface of the container body and a horizontal portion protruding outward from the vertical portion. The sealed container according to 1.   The sealed container according to claim 2, 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.   The sealed container according to claim 2, wherein the vertical portion of the shape retaining ring has a thickness of 0.3 mm to 2.0 mm.   2. The sealed container according to claim 1, wherein the opening of the container main body has a circular shape or an elliptical shape.   The cap body of the cap has 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. The sealed container according to claim 2.   The sealed container according to claim 2, wherein an upper surface portion of the inner lid of the cap is bonded to a horizontal portion of the shape retaining ring by ultrasonic sealing.   A thin-walled portion that can be easily broken along the periphery of the shape of the shape retaining ring opening or slightly smaller than the shape retaining ring opening is formed on the upper surface of the cap's inner lid. The sealed container according to claim 1, wherein the sealed container is cut along a thin portion.   The sealed container according to claim 1, wherein an upper surface portion of the inner lid of the cap has a multilayer film structure containing aluminum.   The sealed container according to claim 1, wherein the cap body of the cap is made of a synthetic resin having a flexural modulus of 800 MPa or less.   The sealed container according to claim 1, wherein a rib for attaching the inner lid after opening is provided inside the cap body. 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 mounted on the shape retaining ring and sealing one side opening of the container body;
The cap has a cap body that fits into the shape retaining ring, and an inner lid that is interposed between the cap body and the shape retaining ring,
The inner lid has an upper surface portion that covers the entire opening of the shape retaining ring, and a pull ring that extends upward from the upper surface portion and fits in the cap body.

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