JP5365788B2 - Packaging container and package using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container capable of easily refilling a content into another container and being easily discarded, and to provide a package using the container. <P>SOLUTION: A funnel part 708a having a funnel 720a is fitted into the opening end 711 of a cylindrical packaging container 702a. The funnel part 708a has the same curvature as a curved face constituted on the inner peripheral edge 714 of a curling 712 and has a deformed outer face, and includes a locking member 721 being brought into contact with the inner peripheral edge of the curling 712 and a connecting member 722 for connecting the locking member 721 to the funnel 720a. As movement of the funnel 720a into a container body 710a is prevented by bringing the locking member 721 into contact with the curling 712, fitting condition of the funnel 720a to the container body 710a is stabilized. In addition, as the funnel part 708a and the container body 710a are not joined together, the funnel part 708a can be pulled out of the container body 710a and can be easily separated therefrom after use. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a packaging container and a package using the same, and more specifically, a packaging container used for packaging powdery or liquid materials and transferring contents to another container, and the same. It is about the package.

  In general, powdered food products such as instant coffee are sold in a state of being filled in a highly sealed packaging container such as a bottle with a cap so that the hermeticity during storage can be maintained. There is also known a refill package in which the contents are simply packaged for the purpose of refilling the contents and reusing the storage container. As packaging containers for such refill packages, for example, pouches, gusset bags, and cup-shaped containers are used.

  Patent Documents 1 to 3 describe a configuration in which a resin-made reinforcing ring is attached to an opening of a cup container in order to reinforce a lightweight and easily disposable paper cup container.

Japanese Examined Patent Publication No. 63-24464 JP-A-8-58764 JP 2002-264918 A Japanese Patent No. 2895556

  Refilling the contents from a conventional refill package such as a pouch into the storage container, for example, by opening the opening of the refill package opened to the opening of the storage container and gradually moving the contents into the storage container. Do by pouring. However, at the time of this refilling work, the contents may spill out and stain the hands and surroundings, so it cannot be said that it is convenient.

  Also, from the viewpoint of ease of disposal and resource saving, the refill package container can easily separate parts with different materials such as paper parts and resin parts, and also allows the amount of resin material to be used. There is a demand for reduction as much as possible.

  Therefore, an object of the present invention is to provide a packaging container that can be easily refilled with contents in another container and can be easily discarded, and a package using the same.

The present invention is a packaging container for packaging powdery or liquid material and transferring the material to another container, which is accommodated in a cylindrical container body having an open end, and accommodated inside the container body. A funnel having a diameter that decreases toward the end, and stopper means for preventing the funnel from moving into the container body. The inner peripheral edge of the open end of the container body is formed such that the inner diameter is widened toward the outer side of the opening, and the stopper means comprises a locking member connected to the funnel, and the outer surface of the locking member Has a shape corresponding to the inner periphery of the open end and abuts on the inner periphery of the open end.

  According to the present invention, since the contents can be refilled in a state where the opening of the funnel housed in the container body is inserted into another container, a packaging container that can be easily refilled is configured. Is possible. Moreover, in this invention, if a packaging container is comprised without joining a funnel and a container main body, it becomes possible to draw out a funnel to the outer side of a container main body, and can implement | achieve the packaging container which is easy to discard.

The perspective view which shows schematic structure of the package which concerns on this invention 1 is an exploded perspective view of the package shown in FIG. Sectional view of the III-III line shown in FIG. Plan view of the membrane shown in FIG. Sectional drawing of the VV line shown by FIG. The perspective view which shows the use condition of the package which concerns on this invention Sectional drawing of the VII-VII line shown by FIG. Sectional drawing of the package which concerns on the 1st Embodiment of this invention Enlarged view of A ₇ portion shown in FIG. 3 Sectional drawing of the package which concerns on the 2nd Embodiment of this invention Sectional drawing of the package which concerns on the 3rd Embodiment of this invention Sectional drawing of the package which concerns on the 4th Embodiment of this invention Sectional drawing of the package which concerns on the 5th Embodiment of this invention B ₇ -B ₇ 'cross-sectional view on the line indicated in Figure 13 Sectional drawing which shows an example of the package which concerns on the 6th Embodiment of this invention Sectional drawing which shows the other example of the package which concerns on the 6th Embodiment of this invention Sectional drawing which shows the other example of the package which concerns on the 6th Embodiment of this invention Sectional drawing which shows the other example of the package which concerns on the 6th Embodiment of this invention Sectional drawing which shows the other example of the package which concerns on the 6th Embodiment of this invention Sectional drawing which shows an example of the funnel concerning the 7th Embodiment of this invention Schematic diagram showing the method of forming the curling shown in FIG. Sectional drawing which shows the attachment state to the container main body of the funnel shown by FIG. Sectional drawing which shows the other example of the funnel concerning the 7th Embodiment of this invention. The schematic diagram which shows the manufacturing method of the funnel which concerns on the 8th Embodiment of this invention.

(Basic configuration)
First, a basic configuration of a package according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view showing a schematic configuration of a package according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the package shown in FIG. FIG. 3 is a cross-sectional view taken along line III-III shown in FIG.

  The package 1 is used as a refill package for packaging powdery or liquid materials and refilling the contents into other storage containers. The packaging container 2 and the inside of the packaging container 2 are filled. And a membrane 3 for sealing the open end 11 of the packaging container 2. Furthermore, an overcap 4 formed of high density polyethylene (HDPE), polypropylene (PP) or the like is attached to the packaging container 2 in order to protect the membrane 3. The content 5 is not particularly limited as long as it has fluidity, and the packaging container 2 according to the present invention can be applied to various materials such as powder, granule, and liquid.

  The packaging container 2 includes a cylindrical container body 10 with one end opened, and a funnel part 8 including a funnel 20 housed inside the container body 10.

  The container body 10 has a side wall 17, a bottom portion 16, and an open end 11. In this embodiment, the container main body 10 is formed in a cylindrical shape by rounding rectangular sheet materials, partially overlapping them, and bonding the overlapping portions. The bottom portion 18 of the container body 10 includes a circular bottom plate 19 and a folded portion 18 that sandwiches and holds the outer peripheral portion of the bottom plate 19. On the other hand, a curling 12 is formed at the open end 11 of the container body 10 by bending a part of the side wall 17 outward and winding it in an annular shape.

  The material for forming the container body 10 is not particularly limited, but it is preferable to use a material mainly made of paper in consideration of weight reduction of the container, ease of disposal, and resource saving. As an example, in food packaging applications, a low-density polyethylene (LDPE), polyethylene terephthalate (PET), aluminum foil, and paper are laminated in order from the side that is the inner surface of the container body 10, and high gas barrier properties (particularly, A sheet material having a property of blocking volatile components derived from contents such as oxygen, water vapor, and aromatic components can be used.

  The funnel part 8 refers to a part composed of a funnel having a portion whose diameter decreases toward one end and a member integrated with the funnel. The funnel part 8 illustrated in FIGS. 1 to 3 includes a funnel 20 and a cylindrical side wall 22 connected to the wide mouth portion of the funnel part 8, and is inserted into the container body 10 from the open end 11 and accommodated therein. The container 10 is fitted. As will be described later, the funnel 20 is provided for facilitating refilling of the contents 5 into another container, and is arranged so that the diameter decreases toward the open end 11. The taper angle α of the funnel 20 is appropriately set according to the fluidity of the contents, but when the contents are powder, it is set to at least 20 to 40 °, more preferably 20 °.

  The funnel part 8 may be integrally formed of a resin material such as HDPE or PP, for example, or may be configured by connecting a funnel 20 and a side wall 22 separately formed using paper, resin, paper mixed resin, or the like. May be. When resin or paper mixed resin is used, the funnel part 8 may be formed by, for example, injection molding. The shape and attachment method of the funnel 20 and the funnel part 8 are not limited to the examples of FIGS.

  4 is a plan view of the membrane shown in FIG. 2, and FIG. 5 is a cross-sectional view taken along line VV shown in FIG.

  The membrane 3 is used to seal the open end 11 of the packaging container 2 after the packaging container 2 is filled with the material. Depending on the use of the packaging container 2, the sheet material is formed of a single layer. Or the sheet material which laminated | stacked several layers can be utilized. When the content of the packaging container 2 is food or the like, it is preferable to form the membrane 3 with a material having gas barrier properties.

  Specifically, as shown in FIG. 5, the membrane 3 is made of resin through a sealant layer 31 sealed in the packaging container 2, a resin layer 32 laminated on the sealant layer 31, and an adhesive layer 33. And a metal foil layer 34 laminated on the layer 32. As an example, the sealant layer 31 may be formed of polyethylene, the resin layer 32 may be formed of polyethylene terephthalate (PET), and the metal foil layer 34 may be formed of aluminum. The number of layers and the stacking method of the layers constituting the membrane 3 are not particularly limited and may be arbitrary.

  The membrane 3 is formed with six cutting lines 30 extending radially from the center so as to be broken when the tension exceeds a predetermined magnitude due to external pressure. 4 and 5, the cutting line 30 cuts only the sealant layer 31 and the resin layer 32 in the thickness direction of the membrane 3, and draws a broken line in the extending direction of the membrane 3. Is formed.

  The cutting line 30 is for adjusting the breaking strength of the membrane 3, and according to the pressing force applied to the membrane 3, the number, the line shape, the length and depth of the cutting part can be arbitrarily set. it can. As an ideal number of the cutting lines 30, it is desirable to provide 3 to 10 radial lines from the center. The cutting line 30 may be linear or curved. Moreover, in the extending | stretching direction of the membrane 3, the cutting line 30 does not necessarily need to be a broken line perforation, and you may form it so that a continuous line may be drawn.

  6 is a perspective view showing a usage state of the package according to the present invention, and FIG. 7 is a cross-sectional view taken along the line VII-VII shown in FIG. More specifically, in FIGS. 6 and 7, (a) shows a state before the membrane is ruptured, and (b) shows a state after the membrane is ruptured.

  When refilling the contents 5 in the package 1 into another container 7, first, as shown in FIGS. 6 (a) and 7 (a), the packaging container 2 with the overcap removed is inverted, and the membrane 3 is brought into contact with the opening of the storage container 7. At this time, since the opening on the narrow mouth side of the funnel 20 is disposed within the range of the opening of the storage container 7, the center of the packaging container 2 is aligned with the center of the storage container 7.

  Next, the bottom of the package 1 is pushed in the direction of the arrow in the figure. At this time, the membrane 3 receives a pressing force from the opening of the funnel 20 and the container 7 as the packaging container 2 is pressed. When the tension of the membrane 3 exceeds a predetermined breaking strength, FIG. As shown in FIG. 7 (b), the membrane 3 is broken. When the membrane 3 is broken, the funnel 20 is inserted into the container 7 according to the pressing force applied to the packaging container 2, and the broken membrane 3 is folded into a space sandwiched between the funnel 20 and the side wall 22. . As a result, the opening on the outer side of the funnel 20 is greatly opened, so that the content 5 flows into the container 7 along the taper of the funnel 20 according to gravity.

  As described above, according to the packaging container 2 and the package 1 using the same according to the present invention, the membrane 3 and the opening of the container 7 are brought into contact with each other, and the packaging container 2 is pressed toward the storage container 7. Accordingly, the opening of the funnel 20 is inserted into the storage container 7 almost simultaneously with the breakage of the membrane 3. Since the contents 5 in the packaging container 2 are guided into the storage container 7 by the funnel 20, it is possible to prevent the contents 5 from being scattered or spilled during the refilling operation. Therefore, according to the packaging container 2 and the package 1 which concern on this embodiment, it becomes possible to refill the contents easily.

  Hereinafter, the characteristics of the packaging container and the package using the same according to the first to eighth embodiments of the present invention will be described.

(First embodiment)
8 is a cross-sectional view of the package according to the first embodiment of the present invention, and FIG. 9 is an enlarged view of a portion A ₇ shown in FIG.

  The funnel part 708a according to this embodiment includes a funnel 720a that narrows toward the open end 711, a locking member 721 that contacts the open end 711 of the container body 710a, and a connecting member 722 that connects them. In the present embodiment, the locking member 721 and the connecting member 722 constitute the side wall of the funnel part 708a.

  As shown in FIG. 9, the inner peripheral edge 714 of the open end 711 of the container body 710 a has a rounded curved shape, and its inner diameter is formed to expand toward the outer side of the open end 711. Yes. The outer surface of the locking member 721 has a curved surface shape corresponding to the inner peripheral edge 714 of the open end 711, that is, has the same cross-sectional shape as the inner peripheral edge 714, and extends annularly in contact with the inner peripheral edge 714 of the open end 711. Is formed. The shape of the connecting member 722 is not particularly limited as long as it can connect the locking member 721 and the funnel 720a.

  The funnel part 708a is inserted inward from the open end 711 of the container body 710a and is fitted into the storage container 10a. As described above, the inner peripheral edge 714 of the open end 711 and the outer surface of the locking member 721 have a cross-sectional shape that changes with the same curvature. Therefore, in a state where the funnel part 708a is completely fitted into the container main body 710a, the locking member 721 is engaged with the inner peripheral surface 14, thereby preventing the funnel 720a from moving inward of the container main body 710. It functions as a stopper means.

  In the present embodiment, as shown in FIG. 9, the dimensions of the locking member 721 and the curling 712 are set so that the upper end of the locking member 721 is included in the same plane as the upper end of the curling 712. . Although the position of the upper end of the locking member 721 is not necessarily set in this way, it is preferable that the upper end level of the locking member 721 is equal to or lower than the upper end level of the curling 712 because the membrane 703 needs to be sealed.

  When the funnel 720a is inserted into the refill destination container, a pressing force is applied to the funnel 720a from the opening of the refill destination container toward the inside of the container body 710a. In this embodiment, since the locking member 721 connected to the funnel 720a prevents the funnel 720a from moving in the inner direction of the container body 710a, the funnel 720a is not pushed in the same direction and is stable. The guide function can be demonstrated.

  In the present embodiment, the packaging container 702a is assembled by fitting the funnel part 708a in which the funnel 720a and the locking member 721 are integrated into the open end of the container body 710a, and the funnel part 708a and the container body 710a are joined. It has not been. When the packaging container 702 is assembled in this way, the funnel part 708a can be pulled out from the container body 710a and separated after use. Therefore, even when the container main body 710a and the funnel 720a are made of different materials, such as forming the container main body 710a with paper and forming the funnel part 708a with resin, sorting and disposal can be easily performed. Furthermore, if the funnel 720a is separated from the used packaging container 702a, the strength in the radial direction can be reduced as compared with the state before use in which the funnel 720a and the connecting portion 22 are stored in the container body 710a. It becomes easy to crush the packaging container 702 to reduce the volume of waste.

(Second Embodiment)
FIG. 10 is a cross-sectional view of a package according to the second embodiment of the present invention.

  A package 701b (packaging container 702b) according to this embodiment includes a container body 710a and a membrane 703 similar to those included in the package 701a according to the first embodiment. However, the package 701b (packaging container 702b) is a package according to the first embodiment in that a funnel 720a is used instead of the funnel part 708a and a stopper means is provided in the container body 710a. Different from 701a. Below, it demonstrates centering on the difference between this embodiment and 1st Embodiment.

  The funnel 720a has a tapered shape and is accommodated in the container main body 710a so that the diameter decreases toward the open end 711. The taper angle of the funnel 720a (inclination angle of the inner surface with respect to the central axis of the funnel 720a) is appropriately set according to the fluidity of the content, but when the content is powder, it is preferably at least 20 °, more preferably It is set to 40 to 45 °. Further, in the present embodiment, the position of the funnel 720a is set so that the outer end portion (upper end in each drawing) of the funnel 720a is positioned substantially in the same plane as the upper end of the container body 710a.

  The funnel 720a may be formed of a resin material such as HDPE or PP, or may be formed of paper, a laminated sheet of paper and paper, a paper mixed resin, or the like. For example, when using a laminated sheet of paper or paper and resin, the funnel 720a can be formed by forming and bonding a fan-cut sheet into a truncated cone shape. The opening end of the funnel 720a may be provided with strength by providing a folded portion or curling. When resin or paper mixed resin is used, the funnel 720a may be formed by, for example, injection molding.

  A locking member 723 that contacts the wide opening 736 of the funnel 720a is provided on the inner side of the container body 710a from the funnel 720a.

  The locking member 723 has an annular shape whose outer diameter is substantially equal to the inner diameter of the container body 710a, and is attached to the inner surface of the side wall 717 on the inner side of the container body 710a than the funnel 720a. The material for forming the locking member 723 is not particularly limited, and can be formed of paper, a laminate of paper / resin / metal foil, resin, or paper mixed resin. The locking member 723 is attached to the container main body 710a by adhesion or heat welding. Moreover, the whole latching member 723 may be joined to the container main body 710a, and the latching member 723 may be partially joined to the container main body. If the bonding location or the welding location is intermittently provided in the circumferential direction, the locking member 723 can be easily separated from the container main body 710a by pressing and bending the container main body 710a in the radial direction. Therefore, even when the locking member 723 is formed of a material different from that of the container body 710a (for example, when the locking member 723 is made of resin and the container body 710a is made of paper), the separation process at the time of disposal is easily performed. It becomes possible.

  In the packaging container 702a according to the present embodiment, the locking member 723 contacts the opening 736 of the funnel 720a, so that the funnel 720a is prevented from moving in the container body 710a. Therefore, as in the first embodiment, the refilling operation can be easily performed without the funnel 720a being pushed in when the contents are refilled. Also in this embodiment, since the funnel 720a does not necessarily have to be joined to the container main body 710a or the locking member 723, the funnel 720a and the container main body 710a can be separated after use, which facilitates separation and volume reduction. The packaging container 702a can be realized.

  In addition, in this embodiment, since the shapes of the funnel 720a and the locking member 723 and the stopper structure are simple, the cost of the packaging container 702b can be reduced.

  In this embodiment, the example in which the locking member 723 is formed in an annular shape has been described. However, the shape of the locking member 723 may be used as long as it can contact the opening 736 of the funnel 720a and prevent the funnel 720a from moving. Is optional. For example, a packaging container having the same function can be configured by intermittently joining a plurality of arc-shaped members along the inner periphery of the container body 710a in the circumferential direction of the container body 710a. Further, the locking member 723 may be extended so as to contact the bottom surface of the container main body 710a. In this case, since the funnel 720a can be fixed by the structure of the container body 710a, the strength against the pushing of the funnel 720a is improved.

  Moreover, in this embodiment, it is preferable to form the membrane 703 with a material having a shape retaining property (a property of retaining the shape) (for example, a material including an aluminum foil). If comprised in this way, when the packaging container 702a after use is removed by the shape retention property of the membrane (FIG.7 (b)) folded in the space between the funnel 720a and the container main body 710a, It can be prevented from falling off due to its own weight.

(Third embodiment)
FIG. 11 is a cross-sectional view of a package according to the third embodiment of the present invention.

  The basic configuration of the package 701c (packaging container 702c) according to this embodiment is the same as that of the package 701a (packaging container 702a) according to the first embodiment. However, the shapes of the container main body 710b and the funnel part 708b are different from those according to the first embodiment. Below, it demonstrates centering on the difference between this embodiment and 1st Embodiment.

  An annular ridge 715 is formed on the side wall 717 of the container body 710b so as to protrude inward. In the present embodiment, the ridge 715 has a convex arc-shaped cross section on the inner side of the container main body 710b and is formed over the entire circumference of the container main body 710b. There is no particular limitation. Moreover, you may provide a protrusion intermittently in the circumferential direction of the container main body 710b. .

  The funnel part 708b includes a funnel 720a similar to that according to the first embodiment, and a cylindrical side wall 724 connected to the funnel 720a and surrounding the funnel 720a. The funnel part 708b may be integrally formed of a resin material such as HDPE or PP, or may be configured by joining together a funnel 720a and a side wall 724 that are separately formed using paper, resin, paper mixed resin, or the like. May be.

  As shown in FIG. 11, the funnel part 708b is inserted into the inside from the open end 711 of the container body 710b, and is fitted into the storage container 10b. In this state, the opening 736 on the wide-mouth side of the funnel 720a contacts the ridge 715.

  In the packaging container 702b according to the present embodiment, the ridge 715 functions as a stopper that contacts the opening 736 of the funnel 720a and prevents the funnel 720a from moving in the inner direction of the container body 710b. Therefore, as in the first embodiment, the refilling operation can be easily performed without the funnel 720a being pushed in when the contents are refilled. Also in this embodiment, since the funnel 720a does not necessarily have to be joined to the container body 710b or the protrusion 715, the funnel 720a and the container body 710b can be separated after use, and packaging is easy to separate and reduce volume. The container 702c can be realized.

  In addition to this, in this embodiment, the portion functioning as a stopper is formed by a part of the side wall 717 of the container main body 710b, so that a separate member for locking the funnel 720a becomes unnecessary. Therefore, the manufacturing cost of the packaging container 702c can be reduced. Further, when the packaging container 702c is assembled by inserting the funnel part 708b into the container main body 710a, the joining process of the container main body 710a and the funnel part 708b becomes unnecessary, and this can also reduce the manufacturing cost.

(Fourth embodiment)
FIG. 12 is a cross-sectional view of a package according to the fourth embodiment of the present invention.

  The package 701d (packaging container 702d) according to the present embodiment is different from that according to the first embodiment in the shapes of the container main body 710c and the funnel part 708c. Below, it demonstrates centering on the difference between this embodiment and 1st Embodiment.

  The container body 710c includes a truncated cone-shaped tapered portion 716 whose inner diameter increases toward the outer side of the open end 711. The tapered portion 716 is constituted by at least a part of the side wall 717 including the open end 711.

  The funnel part 708c includes a funnel 720a similar to that according to the first embodiment, and a truncated cone-shaped side wall 725 connected to the funnel 720a and surrounding the funnel 720a. The side wall 725 is formed in a shape corresponding to the inner surface of the tapered portion 716 of the container main body 710c, that is, a tapered shape having the same taper angle as the tapered portion 716. For example, the funnel part 708c may be integrally formed of a resin material such as HDPE or PP, or a funnel 720a and a side wall 725 formed separately using paper, resin, paper mixed resin, or the like. May be.

  As described above, the inner surface of a portion within a predetermined range from the open end 711 of the side wall 717 and the outer surface of the side wall 725 of the funnel part 708c are formed in shapes corresponding to each other. Therefore, when the funnel part 708c is fitted to the tapered portion 716 of the container main body 710d, the funnel 720a is prevented from moving in the inner direction of the container main body 710c. Therefore, as in the first embodiment, the refilling operation can be easily performed without the funnel 720a being displaced when the contents are refilled. Also in this embodiment, since the funnel 720a does not necessarily have to be joined to the container main body 710c, the funnel 720a and the container main body 710c can be separated after use, and a packaging container 702 that is easy to separate and reduce volume is realized. it can.

  In addition, in this embodiment, since the stopper can be configured by a combination of the structure of the side wall 717 of the container body 710c and the side wall 725 of the funnel part 708c, a separate member for locking the funnel 720a is provided. It becomes unnecessary, and the manufacturing cost of the packaging container 702d can be reduced. Further, when the packaging container 702d is assembled only by fitting the funnel part 708c to the container main body 710a, the joining process of the container main body 710a and the funnel part 708c becomes unnecessary, and this can also reduce the manufacturing cost.

  In this embodiment, a part including the open end 711 of the container body 710c and the side wall 725 of the funnel part 708c are formed in a truncated cone shape, but the shape narrows toward the outer side of the open end. Any other shape such as a truncated pyramid shape may be used.

(Fifth embodiment)
FIG. 13 is a cross-sectional view of a package according to the fifth embodiment of the present invention. FIG. 14 is a cross-sectional view taken along line B ₇ -B ₇ ′ shown in FIG. In FIG. 14, the contents of the package are not shown.

  The package 701e (packaging container 702e) according to the present embodiment is different from that according to the first embodiment in the shape of the funnel part 708d. Below, it demonstrates centering on the difference between this embodiment and 1st Embodiment.

  The funnel part 708d includes a funnel 720a similar to that according to the first embodiment, and strip-shaped locking members 726a to 26d connected to the opening 736 of the funnel 720a. In the present embodiment, the outer diameter of the opening 736 of the funnel 720a is set to be the same as or slightly smaller than the inner diameter of the container body 710a. Each of the locking members 726a to 26d extends along the axial direction along the inner surface of the container body 710a and reaches the bottom plate 719 from the opening 736 of the funnel 720a. In addition, in the circumferential direction of the container body 710a, the locking members 726a to 26d are intermittently arranged with a predetermined interval. The funnel part 708d may be integrally formed of, for example, a resin material such as HDPE or PP, or a funnel 720a and locking members 726a to 26d that are separately formed using paper, resin, paper mixed resin, or the like are joined to each other. May be configured.

  In the packaging container 702 according to the present embodiment, the locking members 726a to 26d abut against the bottom plate 719 of the container main body 710a and function as a stopper that prevents the funnel 720a from moving in the inner direction of the container main body 710a. Since the ends of the locking members 726a to 26d are supported by the structure of the container body 710a, sufficient strength can be obtained against the pushing of the funnel 720a during use. Therefore, as in the first embodiment, the funnel 720a is stably held when the contents are refilled, and the refilling operation can be easily performed. Also in this embodiment, since the funnel 720a does not necessarily have to be joined to the container body 710a, the funnel 720a and the container body 710a can be separated after use, and a packaging container 702 that can be easily separated and reduced in volume is realized. it can.

  Further, when the packaging container 702 is assembled by inserting the funnel part 708d into the container main body 710a, the joining process of the container main body 710a and the funnel part 708d becomes unnecessary, and the manufacturing cost can be reduced.

  In this embodiment, four strip-shaped locking members 726a to 726d are provided. However, the shape and number of the locking members are particularly limited as long as they can contact the bottom plate 719 and prevent the funnel 720a from moving. Not. For example, the locking member may be cylindrical.

(Sixth embodiment)
15A to 15E are cross-sectional views of a package according to the sixth embodiment of the present invention.

  A packaging container 702 shown in FIGS. 15A, 15B, 15C, 15D, and 15E has a stopper structure similar to that shown in the first, second, third, fourth, and fifth embodiments, respectively. However, the shape of the funnel 720b according to the present embodiment is different from the funnel 720a shown in the first to fifth embodiments.

  Specifically, the funnel 720b includes a tapered portion 728 having a tapered shape and a straight tubular straight portion 729 connected to an end edge of the tapered portion 728 having a smaller diameter. The diameter and axial length of the opening (smaller opening) of the funnel 720a composed only of the tapered portion, and the diameter and axial direction of the opening (smaller opening) of the funnel 720b composed of the tapered portion 728 and the straight portion 729. In the latter configuration, since the taper angle is small in the latter configuration, the insertion amount of the funnel 720b into the storage container can be increased. Therefore, by configuring the funnel 720b as in the present embodiment, it is possible to more effectively prevent the contents from being scattered or spilled during refilling.

(Seventh embodiment)
FIG. 16 is a cross-sectional view showing a funnel according to a seventh embodiment of the present invention, and FIG. 17 is a schematic view showing a curling formation method shown in FIG.

  A funnel 740a shown in FIG. 16 is a molded body of sheet material mainly made of paper, and has a feature in a reinforcing structure provided at an edge portion in order to improve the pressing strength in the axial direction and the radial direction. The structure of the funnel 740a according to this embodiment can be applied when the funnel according to each of the above embodiments is formed of paper or a material mainly made of paper.

  The funnel 740a is integrally formed from a sheet material, and has a truncated cone-shaped tapered portion 741 whose diameter decreases toward one end, and curlings 742 and 743 formed at one end and the other end in the axial direction of the tapered portion 741, respectively. Prepare.

  The taper angle of the taper portion 741 is preferably 5 ° or more. When the taper angle is less than 5 °, the function as a funnel cannot be sufficiently exhibited.

  As shown in FIG. 17, the curling 742 is formed in a substantially triangular cross section by winding one end of the tapered portion 741 inward and then crushing a part thereof. If the curling 742 is formed in such a cross-sectional shape, the contents are unlikely to remain on the curling 742 or the contact portion between the curling 742 and the side wall 744 of the container body when the funnel 740a is used. improves. When the curling 742 is inserted into the container body, the curling 742 mainly contributes to reinforcing the lateral pressing strength (strength of the container body against the pressing force in the radial direction).

  The curling 743 is formed by folding the other end of the tapered portion 741 outward. Although FIG. 16 shows an example in which the curling 743 is formed in a semi-curl (pre-curl) shape, the other end of the tapered portion 741 may be completely wound and formed in a cylindrical shape. Further, the curling 743 may be internally wound, or a part thereof may be crushed similarly to the curling 742 regardless of the winding direction. However, since the curling 743 is mainly intended to reinforce the strength against the pressing force received from the membrane when the packaging container is opened, it is preferable in terms of strength to employ curling without external crushing.

  18 is a cross-sectional view showing a state where the funnel shown in FIG. 16 is attached to the container body.

  The outer diameter of the opening on the wide-mouth side of the funnel 740a is set to be larger than the inner diameter of the container body 745. When the dimensions are set in this way, the curling 742 is urged toward the inner surface side of the container main body 745 by the repulsive force acting in the direction indicated by the arrow in the figure, so that the adhesion between the curling 742 and the container main body 745 improves.

  FIG. 19 is a cross-sectional view showing another example of a funnel according to the seventh embodiment of the present invention.

  A funnel 740b shown in FIG. 19 is provided with a skirt 747 instead of the curling 742 of the funnel 740a shown in FIG. The skirt 747 is formed by bending one end of the funnel 740b a plurality of times outward, and has a U-shaped cross section. Such a skirt 741 can reinforce the radial strength in the same manner as the curling 742.

  The funnels 740a and 740b and the container body according to the present embodiment may be joined by, for example, a method of high-frequency sealing the contact portion between the curling 742 (skirt 747) and the inner surface of the container body 745 after insertion into the container body 745. The curling 742 (skirt 747) can be heated with hot air before being inserted into the container body 745 and welded to the inner surface of the container body (a thermoplastic resin layer such as LDPE).

  Here, a method and a material for forming the funnels 740a and 740b will be described.

  The funnels 740a and 740b include, for example, a method of cup-molding a fan-shaped sheet (hereinafter referred to as “first method”) and a method of pressing a circular sheet (hereinafter referred to as “second method”). Can be applied.

  In the first method, a sheet material is punched into a fan shape having a desired size, and a fan-shaped sheet is formed into a truncated cone shape using a cup forming machine and a curling portion is formed. On the other hand, in the second method, the sheet material is punched into a circular shape having a desired size, and ruled lines for drawing are formed on the punched circular sheet. Using a funnel-shaped pair of dies (male and female), the resulting circular sheet is pressed and drawn. In the second method, when a paper sheet having a high elongation rate is used, the formation of drawing ruled lines may be omitted. In addition, when a paper sheet having a high elongation rate is used, a hot plate pressure forming mold may be used.

  The sheet material used in the first and second methods can be produced, for example, by coating one or both sides of a paper sheet.

The paper sheet is not particularly limited, but it is preferable to use a material of 100% virgin pulp in the application of a food packaging container. Further, it is preferable basis weight of the paper sheet is 100 to 300 g / m ^2. If the weight of the paper sheet is below this lower limit, it is difficult to ensure the radial strength required for the packaging container even when the curling 742 or the skirt 747 is formed. Further, if the weighing exceeds this upper limit, the manufacturing cost is increased, which is not preferable.

  Further, since the paper sheet used in the second method is press-molded, a paper sheet having a high elongation rate (for example, a longitudinal elongation rate of 5% or more and a lateral elongation rate of 7% or more) is used. If a paper sheet having a characteristic of elongation of 10% or more is used, the formation of drawing ruled lines can be omitted. The paper sheet to be used is preferably selected in consideration of the drawing depth and the presence or absence of ruled lines.

  The coating applied to the paper sheet is to prevent the contents from adhering to and adsorbing to the paper sheet, and to join the contact points between the container main body 745 and the funnels 740a and 740b by welding. As the coating material, polyolefin resin, polyester resin, polyamide resin, or the like can be used. As the coating method, there are a method of forming into a film and sticking it on a paper sheet, directly extruding on a paper sheet, or liquefying and coating. The resin material to be used is preferably selected in consideration of the ease of welding with the container body, the adsorptivity of the contents, and the like.

  Moreover, if an aluminum foil is bonded to a paper sheet, high-frequency sealing can be performed without using an aluminum foil for the container body. In this case, the use amount of the aluminum foil can be reduced by using the aluminum foil only for the funnel having a relatively small surface area, which helps to save resources.

  According to the funnels 740a and 740b according to the present embodiment, since the resin ratio of the entire packaging container can be reduced, there are advantages in terms of resource saving and ease of disposal. In addition, press molds and hot platen pressure molds are cheaper than injection molds, so manufacturing costs can be reduced, and molds of various sizes can be prepared. . Further, the paper funnels 740a and 740b can reduce the weight even if they have the same degree of rigidity as the resin funnel. Further, if the paper funnels 740a and 740b are used, the volume can be easily reduced by crushing in the radial direction, so that the disposal is excellent.

(Eighth embodiment)
FIG. 20 is a schematic diagram showing a funnel manufacturing method according to the eighth embodiment of the present invention.

  The funnel 750 according to the present embodiment is formed by press molding of a resin sheet. A skirt 751 having a U-shaped cross section is formed in the opening on the wide-mouth side of the funnel 750 to give strength. As shown in FIG. 24, the funnel 750 can be manufactured by forming a resin sheet into a cone shape by hot plate compression molding or the like and then cutting the tip. The skirt 751 is molded simultaneously with the tapered portion. The funnel 750 can be joined to the container body by, for example, heating the skirt 751 with hot air or the like and welding it to the inner surface of the container body.

  According to this embodiment, since the amount of resin and the cost required for the mold can be reduced as compared with the case where the funnel is manufactured by injection molding, the funnel can be manufactured inexpensively and easily.

Example 1
Examples that specifically implement the invention according to the first embodiment of the present invention will be described.

First, as a material for forming the side wall of the container body, in order from the outer side to the inner side of the packaging container, paper (weighing 300 g / m ² ) / adhesive / aluminum foil (7.0 μm) / A laminated sheet laminated with PET (12 μm) / adhesive / LDPE (50 μm) was produced. In addition, as a material for forming the bottom plate, LDPE (20 μm) / paper (weighing 230 g / m ² ) / LDPE (20 μm) / aluminum foil (7) in order from the outer surface side to the inner surface side of the packaging container. 0.0 μm) / adhesive / PET (12 μm) / adhesive / LDPE (50 μm) was laminated.

  Next, the container main body (FIG. 8) which has curling in an open end was produced with the cup molding machine (made by PMC) using these lamination sheets.

  Moreover, funnel parts (FIGS. 8 and 9) having a funnel, a locking member, and a connecting member were injection molded using HDPE (Mitsui Chemicals 2100K). The thickness of each part of the funnel part was 0.8 mm.

  Further, as a material for forming a membrane for sealing the packaging container, aluminum foil (15 μm) / adhesive / PET (12 μm) / LDPE (in order from the outer surface side to the inner surface side of the packaging container) 40 μm) was laminated. The produced sheet was cut out to produce a membrane.

  After assembling the packaging container by fitting the funnel part into the open end of the container body prepared above, instant coffee powder was filled into the container body through the opening of the funnel part. Thereafter, the membrane was heat sealed on the curling of the container body to seal the contents. A separately prepared overcap was attached on the membrane.

  Using the obtained package, the contents are refilled into another container according to the procedure shown in FIGS. 6 and 7, and the refilling operation is performed more easily and reliably than a package using a conventional standing pouch or the like. I was able to. Moreover, since the time for the instant coffee powder to come into contact with the outside air during refilling is shortened, the scent and flavor after refilling were sufficiently maintained.

  Moreover, in the present Example, the position of the funnel was set so that the opening on the outer side of the funnel and the open end of the container body were included in the same plane. Therefore, in the state before opening, the opening on the outer side of the funnel is sealed by the membrane and the overcap, and the contents are prevented from flowing around the upper part of the funnel part. In addition, when the contents were refilled, it was confirmed that the funnel parts did not move with respect to the container body and the stable attachment state was maintained. Further, after use, the funnel part could be easily separated from the container body by pulling it out from the container body.

(Example 2)
An example in which the invention according to the seventh embodiment of the present invention is specifically implemented will be described. More specifically, Samples 1 and 2 below use a funnel manufactured according to the first method described in the seventh embodiment, and Samples 3 and 4 are comparative examples. In the following samples 1 to 4, the wide diameter of the funnel was 90 mm, the narrow diameter was 60 mm, and the height was 40 mm. In Samples 1 to 3, “MP16” manufactured by Mitsui Chemicals, Inc. was used as the LDPE for producing the funnel sheet material.

Sample 1
As the funnel-forming material, a paper sheet in which LDPE (30 μm) / cup base paper (weighing 200 g / m ² ) / LDPE (30 μm) was laminated (extruded) was used in this order from the side facing the inner surface. A paper sheet punched out in a fan shape was formed into a truncated cone shape by a cup forming machine, and inner curling was formed in both openings. The curling formed in the opening on the wide-mouth side had a partially crushed shape (FIG. 17). The container body is laminated with PE (20 μm) / paper (weighing 250 g / m ² ) / PE (20 μm) / aluminum foil (20 μm) / LLDPE (linear low density polyethylene, 60 μm) in order from the side facing the inner surface. The sheet material was formed. The produced funnel was inserted in the container main body, and the contact part of both was joined by the high frequency seal.

Sample 2
Laminated LDPE (30 μm) / aluminum foil (20 μm) / LDPE (15 μm) / cup base paper (weighing 200 g / m ² ) / LDPE (30 μm) in order from the side facing the inner surface as a funnel-forming material (extrusion process) Used paper sheets. A paper sheet punched out in a fan shape was formed into a truncated cone shape by a cup forming machine, and inner curling was formed in both openings. The curling formed in the opening on the wide-mouth side had a partially crushed shape (FIG. 17). The container body is formed of a sheet material in which polyethylene (20 μm) / paper (weighing 250 g / m ² ) / PE (20 μm) / inorganic vapor deposition barrier film (12 μm) / LLDPE (60 μm) is laminated in order from the side facing the inner surface. did. The produced funnel was inserted in the container main body, and the contact part of both was joined by the high frequency seal.

Sample 3 (comparative example)
As the funnel-forming material, a paper sheet in which LDPE (30 μm) / cup base paper (weighing 200 g / m ² ) / LDPE (30 μm) was laminated (extruded) was used in this order from the side facing the inner surface. The paper sheet punched out in a fan shape was formed into a truncated cone shape by a cup forming machine, and an inner curling was formed only at the opening of the wide mouth. The curling was partially crushed (FIG. 17). The container body was formed of a sheet material obtained by laminating polyethylene (20 μm) / paper (weighing 250 g / m ² ) / PE (20 μm) / aluminum foil (20 μm) / LLDPE (60 μm) in this order from the side facing the inner surface. The produced funnel was inserted in the container main body, and the contact part of both was joined by the high frequency seal.

Sample 4 (comparative example)
The funnel was made by injection molding. The container body was formed of a sheet material obtained by laminating PE (20 μm) / paper (weighing 300 g / m ² ) / PE (20 μm) / aluminum foil (20 μm) / LLDPE (60 μm) in order from the side facing the inner surface. The produced funnel was inserted in the container main body, and the contact part of both was joined by the high frequency seal.

  Test of refilling contents into other containers according to the procedure shown in FIGS. 6 and 7 using a package in which instant coffee powder is filled in the packaging containers of Samples 1 to 4 and the opening of the container body is sealed with a membrane. Went. Table 1 shows the results of evaluating the paper ratio (% by weight), the alignment accuracy at the time of assembly (when the funnel was inserted), the lateral pressing strength, and the foldability of each sample 1 to 4 with “◯: good, x: bad”. Show.

  As shown in Table 1, since the funnels of Samples 1 and 2 were formed of paper sheets, the paper ratio in the entire packaging container could be improved. Further, since the inner curling is formed at the opening of the wide mouth, the insertion position of the funnel was stabilized by the urging force of curling, and sufficient lateral pressing strength was obtained. Furthermore, by using a paper sheet as a main component, the folding property is excellent, and volume reduction at the time of disposal becomes easy.

(Example 3)
An example in which the invention according to the seventh embodiment of the present invention is specifically implemented will be described. More specifically, Samples 5 to 7 below use a funnel manufactured according to the second method described in the seventh embodiment, and Sample 8 is a comparative example. In Samples 5 to 8 below, the wide diameter of the funnel was 90 mm, the narrow diameter was 60 mm, and the height was 40 mm.

Sample 5
As the funnel-forming material, a paper sheet in which LDPE (30 μm) / cup base paper (weighing 250 g / m ² ) / LDPE (30 μm) was laminated (extruded) was used in this order from the side facing the inner surface. More specifically, paper drawing was performed using a funnel-shaped mold (male mold and female mold) on a circular (diameter 120 mm) paper sheet punched with radial ruled lines. Curling was formed at the opening on the wide-mouth side of the funnel during molding. Moreover, the tip part of the funnel shape was cut and the shape was adjusted to obtain a frustoconical funnel. The curling on the wide-mouth side of the produced funnel was heated with hot air, inserted into a separately produced container body (inner surface: LDPE), and the funnel was welded to the container body.

Sample 6
A paper sheet in which polybutylene terephthalate (PBT, 30 μm) / “Wayby Wavy WV175g” / LDPE (30 μm) manufactured by Nippon Paper Industries Co., Ltd. is laminated (extruded lamination process) in order from the side facing the inner surface as a funnel-forming material. It was used. A paper sheet was formed into a funnel shape by hot plate pressure forming and then trimmed, and curling was formed in the opening on the wide mouth side to obtain a funnel. The curling on the wide-mouth side of the produced funnel was heated with hot air, inserted into a separately produced container body (inner surface: LDPE), and the funnel was welded to the container body.

Sample 7
As a funnel-forming material, a paper sheet obtained by laminating PET (12 μm) / bleached kraft 175 g / LDPE (30 μm) in order from the side facing the inner surface (PET: dry lamination, LDPE: extrusion lamination) was used. A paper sheet punched out in a fan shape was sleeve-molded, and curling was formed in the opening on the wide-mouth side to obtain a funnel. The curling on the wide-mouth side of the produced funnel was heated with hot air, inserted into a separately produced container body (inner surface: LDPE), and the funnel was welded to the container body.

Sample 8 (comparative example)
The funnel was made by injection molding. The opening on the wide-mouth side of the funnel was heated with hot air and inserted into a separately prepared container body (inner surface: LDPE), and the funnel was welded to the container body.

  Table 2 shows the results of evaluating the paper ratio (% by weight) and weight of the packaging containers of Samples 5 to 8 with “「: extremely good, ○: good, x: bad ”.

  As shown in Table 2, since the funnels of Samples 5 to 7 were formed of paper sheets, the paper ratio in the entire packaging container could be improved. Moreover, the weight of the packaging container can be greatly reduced as compared with the case where a resin funnel is used.

(Example 3)
An example in which the invention according to the eighth embodiment of the present invention is specifically implemented will be described. Sample 9 below is a funnel produced by the method described in the eighth embodiment, and sample 10 is a comparative example. In Samples 9 and 10 below, the wide diameter of the funnel was 90 mm, the narrow diameter was 60 mm, and the height was 40 mm.

Sample 9
A resin sheet obtained by dry laminating a PP sheet (0.6 mm) and an LDPE film (40 μm) was formed into a cone shape by hot plate compression molding, and then the tip was cut to prepare a funnel. At the time of molding, a skirt portion was formed in the wide mouth portion. The skirt part of the produced funnel was heated with hot air, inserted into a separately produced container body (inner surface: LDPE), and the funnel was welded to the container body.

Sample 10 (comparative example)
The funnel was made by injection molding. The opening on the wide-mouth side of the funnel was heated with hot air and inserted into a separately prepared container body (inner surface: LDPE), and the funnel was welded to the container body.

  Table 2 shows the results of evaluating the mold cost, ease of shape change, and weight with “サ ン プ ル: extremely good, ○: good, x: bad” for the samples 9 and 10 described above.

  As shown in Table 2, since the funnel of Sample 9 can be produced by sheet molding, the weight of the packaging container and the cost of the mold can be suppressed as compared with the case where the resin funnel is used. In the case of sheet molding, the shape design can be easily changed as compared with injection molding.

  INDUSTRIAL APPLICABILITY The present invention can be used as a packaging container for transferring powdery, granular, and liquid fluid materials such as instant coffee and powdered milk, toners for copying machines and laser printers to other containers. .

DESCRIPTION OF SYMBOLS 1 Package 2 Packaging container 3 Membrane 5 Powder 7 Container 8 Funnel part 10 Container body 11 Open end 17 Side wall 20 Funnel 701 Package 702 Packaging container 703 Membrane 704 Powder 710 Container body 711 Open end 717 Side wall 720 Funnel 714 Inner edge 715 Convex Thread 716 Taper 721 Locking member 722 Connecting member 723 Locking member 726 Locking member 727 Opening

Claims (3)

A packaging container for packaging powdery or liquid material and transferring the material to another container,
A cylindrical container body having an open end;
A funnel housed inside the container body and having a diameter narrowing toward the open end;
E Bei and stopper means for preventing movement of the funnel into the interior of the receptacle body,
The inner peripheral edge of the open end of the container body is formed such that its inner diameter widens toward the outer side of the opening,
The stopper means comprises a locking member connected to the funnel,
An outer surface of the locking member has a shape corresponding to the inner peripheral edge of the open end, and is in contact with the inner peripheral edge of the open end . The packaging container according to claim 1, wherein the funnel is made of paper or a resin containing paper. A package for transferring the contents to another container,
A packaging container according to claim 1;
A granular or liquid material filled in the packaging container;
A package comprising: a membrane that seals an open end of the packaging container and breaks when pressed from outside.

Images