JP5195025B2 - Composite container - Google Patents

Description

  The present invention relates to a storage container for storing various items such as chocolates, gums, candy and other confectionery, detergents, tablets, supplements, accessories, etc., and in particular, can be used as a substitute for conventional plastic containers and glass bottles. The present invention relates to a recloseable (resealable) storage container having a hinge cap with paper as the main material.

  Recently, from the standpoint of environmental protection, paper-based containers have been developed as an alternative to plastic containers and glass bottles that have been used in the past. As a container mainly composed of this type of paper, the composite containers disclosed in Patent Documents 1 and 2 form an opening edge member injection-molded with a thermoplastic resin at the upper end opening of the paper cup, and the contents are stored in the container. After the filling, the composite container is hermetically sealed by heat-sealing the sealing film to be peelable on the upper surface of the flange portion of the opening edge member.

  However, the container mainly composed of the paper cup described above is the one in which the sealing film is heat-sealed to the opening edge member so as to be peelable and sealed, and once the container is opened by peeling the sealing film from the opening edge member. The container with the contents still remaining could not be reclosed. In addition, since this composite container has a structure in which a flange-shaped opening edge member is fused to a tapered paper cup, a recloseable cap cannot be attached to the flange.

  On the other hand, for example, a wet tissue composite container disclosed in Patent Document 3 below is known as a container mainly made of paper provided with a lid that can reclose an opening. The container disclosed in this document is configured by welding a frame member formed of synthetic resin to an opening of a container main body mainly made of paper, and screwing an extraction cap member formed of synthetic resin to the frame member. ing. An outer lid that opens and closes an opening for taking out the tissue is attached to the center of the extraction cap member. This outer lid can be reclosed.

  However, the container disclosed in Patent Document 3 has a high weight ratio of the frame member, the extraction cap member, and the outer lid formed of synthetic resin to the weight of the container main body mainly made of paper. Even in the removed state, the resin weight ratio exceeds 50%. For this reason, when the extraction cap member is removed and the container body with the frame member is disposed of, it cannot be disposed as a paper container, and enormous costs are required for the disposal process.

Moreover, since the container of patent document 3 can open and close the outer lid whose diameter is smaller than the extraction cap member, it is suitable for taking out tissues one by one, but taking out relatively large contents such as gum is not possible. Can not. For this reason, development of the paper container which can reclose a comparatively big opening part is desired.
JP 9-239872 A JP-A-9-277450 Japanese Utility Model Publication No.57-159673

  The problem to be solved by the present invention is to provide a recloseable container that can be discarded as a paper container.

As means for solving the above-mentioned problems, the invention according to claim 1 is characterized in that a container body made mainly of paper, a ring made of a thermoplastic resin welded to an opening of the container body, and the ring A ring having a hinge cap that fits to the container body, the ring having an adhesive portion with the container body, a cap fitting sealing portion, and a protruding portion protruding from the container body, the protruding portion A ring groove is provided in the hinge cap. The hinge cap includes a ring fitting portion, an upper lid, and a hinge connecting the ring fitting portion. The ring fitting portion is engraved on the outer peripheral side wall and the outer peripheral side wall. An opening band provided so as to be able to be cut off by the opening groove, and a fitting protrusion provided on the inner surface of the outer peripheral side wall to be fitted into the ring groove. The upper lid includes a top wall and a side wall of the upper lid. And the side wall of the upper lid is ringed through the opening groove It is coupled to the outer peripheral side wall of the engaging portion, wherein the hinge cap in a state in which the opening band was stoppered to the ring at the stage of unopened, can not be easily removed from the ring, the opening In the state where the band is removed , the composite container is characterized in that the upper lid can be opened, the upper lid can be resealed, and the hinge cap can be removed from the ring .

The invention according to claim 2, the weight of the paper occupying the container body, according to claim 1, wherein the container has a weight of the body and more than 50% of the total weight of the weight of the ring This is a composite container.

The invention described in Claim 3 is a composite container according to claim 1 or 2, wherein the body portion of the container body is perpendicular towards the bottom from the opening.

According to a fourth aspect of the present invention, the ridge portion comprises an upper ridge portion, a lower ridge portion, and the ring groove formed in the middle thereof. The composite container according to any one of claims 1 to 3 , wherein the composite container is fitted into a lower groove provided at a lower portion of the fitting protrusion.

The invention of claim 5, wherein the opening band, formed integrally with the opening band, according to claim 1-4, characterized in that it comprises an open trigger having a display showing the unsealing direction It is a composite container given in any 1 paragraph.

  A composite container according to the present invention is a composite container having a container main body made of paper, a thermoplastic resin ring welded to an opening of the container main body, and a hinge cap fitted to the ring. Therefore, it can be reclosed with a hinge cap even after opening, and is highly convenient for applications that are used continuously after opening.

  In addition, the container body and the ring are welded and integrated at the bonding portion, and the ring and the hinge cap are integrated by fitting the ring groove and the fitting protrusion. All the parts are united to form a container. Therefore, it is a container that can be used for a long period of time without any parts falling off or being lost, including the top lid.

In addition, when the hinge cap is structured so that it cannot be easily removed from the ring when the opening band is plugged into the unopened stage, it has the effect of preventing unauthorized opening due to mischief, etc. It is.
If the hinge cap can be removed from the ring with the opening band removed, separate the container main body made of paper from the hinge cap made of thermoplastic resin and discard it when discarding. Can be easily done.
If the weight of paper in the container body is 50% or more of the total weight of the container body and the ring, it is discarded as a paper container without cutting the container body and the ring. Therefore, not only the convenience for disposal is high, but also the cost required for disposal can be reduced.

  When the body part of the container body is vertical from the opening part toward the bottom part, the pressing force is effectively applied when the hinge cap is plugged, so that the stopper can be made stronger and the effect of preventing unauthorized opening is increased. . It is also excellent in terms of container design.

  The ridge portion is composed of an upper ridge portion, a lower ridge portion, and a ring groove formed in the middle thereof, and the lower ridge portion is fitted in a lower groove provided at a lower portion of the fitting projection of the hinge cap. In such a case, the fitting between the ring and the hinge cap becomes stronger.

  When the opening band is formed integrally with the opening band and has an opening start portion having an indication of the opening direction, the opening direction is intuitively easy to understand, and when opening, the opening start portion Since the finger is securely applied, the opening operation can be easily performed.

Hereinafter, an embodiment of a composite container according to the present invention will be described in detail based on the drawings.
FIG. 1 is a perspective view showing an opened state of an embodiment of a composite container according to the present invention.
A composite container 1 shown in FIG. 1 has a container body 2 made of paper as a main material, a ring 3 made of a thermoplastic resin, and a hinge cap 4 fitted to the ring. The container body 2 has a cylindrical body portion 21 and a circular bottom portion 22, and a ring 3 is welded to the opening. In FIG. 1, the opening is not shown because it is hidden by the ring 3 and the hinge cap 4.

  The hinge cap 4 includes a ring fitting portion 5, an upper lid 7, and a hinge 6 connecting them. In FIG. 1, the top lid 71 of the upper lid, the side wall 72 of the upper lid, the finger hook 73, and the outer peripheral side wall of the ring fitting portion. 51 is shown. Since FIG. 1 shows a state in which the container is opened, the opening band 53 is removed, so that the container is shown as an opening band removing portion 53a.

  The shape of the container body is not particularly limited, and may be any shape such as a polygonal column shape, a conical shape, a truncated cone shape, etc. in addition to the cylindrical shape in the present embodiment. In the case of a shape that is perpendicular to the bottom, the container body is deformed or damaged because the pressing force acts effectively when the hinge cap is plugged into the ring attached to the opening of the container body. It is possible to plug firmly without any trouble.

  The material constituting the body portion 21 and the bottom portion 22 is mainly paper or paper, paper impregnated with a resin, paper coated with a resin, or a synthetic resin film or aluminum foil bonded to the paper. Or a combination of these can be used. In addition, by providing a thermoplastic resin layer on the inner surface side of the container main body, welding between the container main body and the ring is ensured, and the water resistance and sealing performance of the container are improved. Further, when a barrier film having a vapor-deposited layer of metal or metal oxide is used, a container having a high barrier property can be realized.

FIG. 2 is a sectional view showing an unopened state of the embodiment shown in FIG.
A body 21 and a bottom 22 constituting the container body 2 are shown, and the ring 3 is welded to the opening 23. A ring fitting portion 5, a hinge 6, and an upper lid 7 constituting a hinge cap are shown. The ring fitting portion 5 includes an outer peripheral side wall 51, an opening groove 52 formed on the outer peripheral side wall 51, It is shown that an opening band 53 formed by two opening grooves 52 is provided.

  The upper lid 7 has a top wall 71 and a side wall 72 of the upper lid. Although not shown in FIG. 2, the side wall 72 of the upper lid is connected to the outer peripheral side wall 51 of the ring fitting portion 5 via the opening groove 52. Yes. An inner ring 74 is provided on the inner surface side of the container of the upper lid 7 so as to be fitted to the inner surface of the ring 3. The upper lid 7 is provided with a finger hook 73.

FIG. 3 is a plan view of the hinge cap in the embodiment shown in FIG. 2, and FIG. 4 is a front view thereof. FIG. 5 is a cross-sectional view showing the AA ′ cross section of the hinge cap shown in FIG. 3, and FIG. 6 is a cross-sectional view showing the same BB ′ cross section.
Description of the parts already described is omitted.
The hinge cap 4 includes a ring fitting portion 5, an upper lid 7, and a hinge 6 that couples both. The ring fitting portion 5 is provided with an opening band 53 formed by an opening groove 52 formed on the outer peripheral side wall 51. In the present embodiment, an opening start portion 54 having a display 55 indicating the opening direction and formed integrally with the opening band 53 is further provided.
If the opening start portion 54 is provided so as to protrude from the hinge cap 4 as shown in FIG. 3, it is possible to easily open the opening portion 54 with a finger. Moreover, if the display 55 which shows an opening direction is provided, it can carry out reliably, without mistaking the opening direction.

  As shown in FIG. 4, there are two opening grooves 52, and one on the upper side starts around the hinge 6 and goes around the upper lid along the side of the upper lid side wall 72. It is provided to return to. The other one is provided starting from the opening start portion 54, passing through the lower part of the finger hook 73 and past the position B in FIG. 3, and the portion sandwiched between the two opening grooves 52 is opened. It becomes a band 53.

FIG. 7 is a partially enlarged cross-sectional view showing a fitting portion between the ring and the hinge cap in this embodiment.
The ring 3 is welded to the opening 23 which is the upper end of the trunk portion 21 of the container body, and a hinge cap is fitted to the ring 3.
The ring 3 is provided with a cap fitting sealing portion 36 that fits the adhesive portion 31 and a protruding strip portion 35 protruding outward from the container body 2 and the upper lid.
The protrusion 35 is provided with a ring groove 32, and a fitting projection 56 of a hinge cap is fitted into the ring groove 32. In the present embodiment, the ridge 35 is provided with an upper ridge 33, a lower ridge 34, and a ring groove 32 sandwiched between the two protrusions. At the same time as 56 is fitted, the lower ridge 34 is fitted into the lower groove 57 of the hinge cap. By thus designing the ring and the ring fitting portion so that the cross-sectional shapes are double-fitted, the fitting between the ring and the hinge cap can be made stronger. Further, in this embodiment, the protruding height of the upper ridge is lower than the protruding height of the lower ridge. By doing so, when the hinge cap is plugged into the ring, the ridges easily exceed the irregularities on the inner surface of the cap fitting sealing portion, and the plugging is performed smoothly.

  As a method of welding the ring 3 to the opening 23 of the container main body, a known ultrasonic welding method or heat fusion method can be used. By providing a small ridge as shown in FIG. 7 in the bonding part 31 of the ring 3, the adhesiveness with the opening 23 of the container body can be made more reliable.

  As shown in FIG. 7, the cap fitting sealing portion 36 provided on the top of the ring 3 is closely fitted in the space formed by the inner surface of the side wall 72 of the upper lid, the inner ring 74, and the inner surface of the top wall 71. It fits, and the sealing performance as a container is ensured. This hermeticity is exerted in the same manner not only in the unopened state but also in the resealing after opening.

  As a material of the hinge cap and the ring of the composite container according to the present invention, a known thermoplastic resin such as polyethylene resin, polypropylene resin, polyethylene terephthalate resin, polyamide resin, polyvinyl chloride resin or the like can be used.

  The hinge cap of the composite container according to the present invention is formed in an unopened shape in which the container is sealed, and each part is integrally formed, and the fitting protrusion provided on the hinge cap and the ring groove provided on the ring are fitted. Therefore, it can be firmly held by being plugged into a ring welded to the container main body, and cannot be easily removed from the main body when the opening band is unopened. In this case, since the upper lid can be opened only by removing the opening band, it has an effect of preventing unauthorized opening.

In addition, when the opening band is removed and opened, the upper lid can be opened and resealed, and it can be removed from the ring by pulling the ring fitting part outward. When the container is discarded, it can be easily separated into a paper container and a plastic.
In particular, when the weight of the paper occupying the container body is 50% or more of the total weight of the container body and the ring, it is not necessary to separate the container body and the ring, just remove the hinge cap, The remainder can be discarded as a paper container, reducing labor and cost required for disposal.

The perspective view which showed the opened state of one Example of the composite container which concerns on this invention. Sectional drawing which showed the unopened state of the Example shown by FIG. The top view of the hinge cap in the Example shown by FIG. The front view of the hinge cap shown by FIG. Sectional drawing which showed the A-A 'cross section of FIG. Sectional drawing which showed the B-B 'cross section of FIG. The partial expanded sectional view which showed the fitting part of the ring and hinge cap in the Example shown by FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Composite container 2 ... Container main body 21..Body part 22..Bottom part 23..Opening part 3 ... Ring 31..Adhesion part 32..Ring groove 33.・ Lower ridge 35 ・ ・ Projected ridge 36 ・ ・ Cap fitting sealing part 4 ... Hinge cap 5 ... Ring fitting part 51 ・ ・ Outer peripheral side wall 52 ・ ・ Opening groove 53 ・ ・ Opening Band 53a ·· Opening band removing portion 54 ·· Opening start portion 55 ·· Indicating opening direction 56 ·· Fitting projection 57 ·· Lower groove 6 ··· Hinge 7 ··· Upper lid 71 ·· Top wall 72 ·· Side wall 73 of the upper lid ·· Finger rest 74 · · Inner ring

Claims (5)

A composite container having a container body mainly made of paper, a thermoplastic resin ring welded to an opening of the container body, and a hinge cap fitted to the ring, the ring being a container body An adhesive portion, a cap fitting sealing portion, and a protruding ridge protruding from the container body, the protruding ridge is provided with a ring groove, and the hinge cap includes a ring fitting The ring fitting part includes an outer peripheral side wall, an opening band provided so as to be cut off by an opening groove formed on the outer peripheral part side wall, and the outer peripheral side wall. A fitting projection that is fitted to the ring groove, and the upper lid has a top wall and a side wall of the upper lid, and the side wall of the upper lid is inserted into the ring through the opening groove. It is coupled to the outer peripheral side wall of the engaging portion, wherein the hinge cap When the opening band is plugged into the ring in an unopened stage, it cannot be easily removed from the ring. However, when the opening band is removed, the upper lid is opened and the upper lid is removed. The composite container can be resealed and the hinge cap can be removed from the ring . The composite container according to claim 1, wherein the weight of the paper occupying the container body is 50% or more of the total weight of the weight of the container body and the weight of the ring. The body part of the said container main body is perpendicular | vertical toward the bottom part from an opening part, The composite container of Claim 1 or 2 characterized by the above-mentioned. The ridge portion includes an upper ridge portion, a lower ridge portion, and the ring groove formed in the middle thereof, and the lower ridge portion is formed in a lower groove provided at a lower portion of the fitting projection of the hinge cap. composite container according to any one of claims 1 to 3, characterized in that fitted. The composite container according to any one of claims 1 to 4 , wherein the opening band includes an opening start portion formed integrally with the opening band and having an indication of an opening direction.

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