WO2021002319A1 - 容器 - Google Patents

容器 Download PDF

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Publication number
WO2021002319A1
WO2021002319A1 PCT/JP2020/025486 JP2020025486W WO2021002319A1 WO 2021002319 A1 WO2021002319 A1 WO 2021002319A1 JP 2020025486 W JP2020025486 W JP 2020025486W WO 2021002319 A1 WO2021002319 A1 WO 2021002319A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular member
container
annular
joined
lid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/025486
Other languages
English (en)
French (fr)
Inventor
美帆子 吉田
豊明 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zacros Corp
Original Assignee
Fujimori Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujimori Kogyo Co Ltd filed Critical Fujimori Kogyo Co Ltd
Priority to US17/623,175 priority Critical patent/US20220258928A1/en
Priority to CN202080047621.9A priority patent/CN114051478A/zh
Priority to PH1/2021/553229A priority patent/PH12021553229A1/en
Priority to KR1020227003056A priority patent/KR102809354B1/ko
Priority to EP20834385.5A priority patent/EP3995409B1/en
Publication of WO2021002319A1 publication Critical patent/WO2021002319A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/08—Removable lids or covers having a peripheral flange fitting over the rim of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
    • B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
    • B65D15/16—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made of plastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/16—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material with double walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • B65D43/169—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately the lid, the hinge and the element connecting them to the container being made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/10—Jars, e.g. for preserving foodstuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0225—Removable lids or covers without integral tamper element secured by rotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0225—Removable lids or covers without integral tamper element secured by rotation
    • B65D43/0231—Removable lids or covers without integral tamper element secured by rotation only on the outside, or a part turned to the outside, of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/162—Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/163—Non-removable lids or covers hinged for upward or downward movement the container and the lid being made separately
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/22—Devices for holding in closed position, e.g. clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/02—Grip means
    • B65D2251/023—Ribs or recesses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527—NO contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container

Definitions

  • the present invention relates to a self-supporting container.
  • the present application claims priority based on Japanese Patent Application No. 2019-123825 filed in Japan on July 2, 2019, the contents of which are incorporated herein by reference.
  • Patent Document 1 an annular body-side end joint formed by bending inward is formed at both upper and lower ends of the body member, and the outer peripheral portions of the upper and lower closing members are joined to the upper and lower body-side end joints, respectively. Then, a pouch container in which the upper and lower ends of the body member are closed by the upper and lower closing members is described.
  • flexible packaging containers mainly made of laminated film are lightweight and have excellent disposability, but the loading efficiency of containers filled with contents is poor, and the container strength such as drop strength and bag breaking strength is low.
  • containers such as paper cartons and brick packs (registered trademarks), which are often seen today, have stable shapes, excellent loading efficiency, and are lightweight, but they are used for the strength of containers, especially for paper containers. Since the interlayer strength of the base material is inferior, it is a problem that it is vulnerable to impact such as dropping depending on the shape of the container. Further, the paper container is inferior in piercing resistance and the appearance design such as gloss is inferior to that of the film container.
  • molded containers such as blow bottles and aluminum cans have high strength, but become bulky when discarded.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a self-supporting packaging container that can achieve both strength and disposability even with a wide mouth.
  • the container according to one aspect of the present invention includes a container body having an opening at the upper end of the tubular member, an annular member joined to the upper end of the tubular member, and the opening.
  • the container main body has a bottom surface member joined to the tubular member at the bottom surface portion of the tubular member, and the tubular member has a sealant layer. It is composed of a flexible laminate having three or more layers including the lid member, and the lid member is openably and closably connected to the annular member by either a hinge, a fitting, or a screw.
  • the structure for connecting the lid member to the annular member may be a hinge.
  • the container may be a jar container.
  • the tubular member is made of a first laminated body having a total thickness of 100 to 500 ⁇ m, and the outer diameter of the tubular member may be 30 to 150 mm.
  • the bottom surface member is composed of a second laminated body having a total thickness of 70 to 350 ⁇ m, and the second laminated body has at least one resin layer on each side of an aluminum foil having a thickness of 40 ⁇ m or more in the thickness direction. It may be a laminated body having more than one layer. The peripheral edge portion of the bottom surface member may be bent with respect to the bottom surface portion and joined to the lower end portion of the tubular member.
  • the bottom surface member may be made of a resin or aluminum molded product.
  • the lid member may be made of a resin or aluminum molded product.
  • the annular member is joined between the flexible tubular member and the lid member and the container is opened and closed between the lid member and the annular member, the strength and disposal even if the mouth is wide. It is possible to achieve both sex.
  • the container of the first embodiment is illustrated by a perspective view.
  • the container of the first embodiment is illustrated by an exploded perspective view.
  • the container of the second embodiment is illustrated by a perspective view.
  • the container of the second embodiment is illustrated by an exploded perspective view.
  • the container of the third embodiment is illustrated by a perspective view.
  • the container of the third embodiment is illustrated by an exploded perspective view. It is sectional drawing which illustrates the joint part of the tubular member and the bottom surface member. It is sectional drawing which illustrates the joint part of the tubular member and the bottom surface member. It is sectional drawing which illustrates the joint part of the tubular member and the bottom surface member. It is sectional drawing which illustrates the joint part of a tubular member and an annular member.
  • the container 10 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 11 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a.
  • a member 12 is provided.
  • the lid member 12 has a base portion 14 that can be joined to the annular member 11, and a top portion 15 that is openably and closably connected to the base portion 14 via a hinge 13.
  • the base 14 has a ring shape, and the top 15 has a closed top 15a. When it is not necessary to seal the contents, a hole may be formed in the top surface portion 15a, or a mesh, a grid, or the like may be provided.
  • the top portion 15 may be connected to the annular member 11 via the hinge 13 (the base portion 14 is not provided).
  • the tubular member 2 may be inserted into the mold, and the annular member 11 and the top portion 15 may be integrally molded.
  • the container body 1 is a flexible container having a bottom and has self-supporting property.
  • the independence of the container body 1 is at least a property that allows the container body 1 to become independent in a sealed state filled with the contents. Further, it can stand on its own even when the container body 1 not filled with the contents is empty. Further, it is preferable that the tubular member 2 can stand on its own in a single state having no bottom surface.
  • the annular member 11 has a joint portion 11a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 11b extending upward from the joint portion 11a.
  • the base portion 14 is joined to the rim portion 11b by, for example, fitting, bonding, or the like.
  • the hinge 13 is directly joined to the container body 1, it is difficult for the container body 1 to withstand the opening and closing of the lid member 12.
  • the annular member 11 By providing the annular member 11 at the upper end of the container body 1, the upper end of the container body 1 is reinforced. Therefore, even if the top portion 15 is joined via the hinge 13, the container body 1 can withstand the opening and closing of the lid member 12.
  • the lid member 12 having the hinge 13 is separate from the annular member 11.
  • the work can be performed in a state where the lid member 12 having the hinge 13 is not attached. Because it can be done, the work becomes easy.
  • a method of joining the annular member 11 and the base portion 14 for example, fitting, adhesion, or the like can be adopted.
  • the annular member 11 is configured to also serve as the base portion 14
  • the top portion 15 of the lid member 12 is directly joined to the annular member 11 via the hinge 13 (there is no base portion 14), or FIGS. 1A and 1B.
  • the hinge 13 may be configured such that the annular member 11 or the base portion 14 is connected to the top portion 15 formed separately from the annular member 11 or the base portion 14 via a pin, a shaft, or the like of metal or the like so as to be openable and closable. It is preferable to form the hinge 13 flexibly and integrally mold the annular member 11 or the base portion 14 and the top portion 15 from the viewpoint of reducing the number of parts and the like. When the top portion 15 is opened, the contents of the container body 1 can be taken out via the annular member 11 or the base portion 14.
  • a sealing material such as aluminum foil or a resin film may be attached to the rim portion 11b or the base portion 14 in order to protect the contents before opening.
  • the contents can be taken out after the sealing material is peeled off. Details are shown as the height H of the joint portion 45a in FIG. 7, which will be described later, but the height of the joint portion that joins the annular member 11 to the upper end portion of the tubular member 2 in the vertical direction is, for example, about 5 mm, or 3 to 3 to. It is preferably about 15 mm, more preferably about 5 to 12 mm.
  • the lid member 12 may be provided with a non-slip 16 such as a concave portion or a convex portion on which a claw or the like is applied.
  • non-slip 16s are provided on the base 14 and the top 15.
  • the non-slip 16 may be provided on at least one of the base 14 and the top 15.
  • the non-slip 16 may be provided on at least one of the annular member 11 or the lid member 12.
  • the non-slip 16 is preferably arranged at a position facing the hinge 13 at an angle of about 180 ° in the circumferential direction of the annular member 11.
  • the lid member 12 may be made of a molded product such as resin or metal (for example, aluminum), wood, paper, or ceramic.
  • the lid member 12 may be rigid and inflexible. Further, the lid member 12 may be flexible and deformable.
  • the container 20 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 21 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a.
  • a member 22 is provided.
  • the configuration of the container body 1 is the same as that of the first embodiment.
  • the top surface portion 22a of the lid member 22 can be configured in the same manner as the top surface portion 15a of the first embodiment.
  • the annular member 21 has a joint portion 21a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 21b extending upward from the joint portion 21a.
  • the lid member 22 is joined to the rim portion 21b by fitting.
  • the lid member 22 is directly fitted to the container body 1, it is difficult for the container body 1 to withstand the opening and closing of the lid member 22.
  • the annular member 21 is reinforced. Therefore, even if the lid member 22 is joined by fitting, the container body 1 can withstand the opening and closing of the lid member 22.
  • a non-slip 23 such as a concave portion or a convex portion for putting a claw or the like on the annular member 21 and the lid member 22 is provided.
  • the non-slip 23 may be provided on at least one of the annular member 21 and the lid member 22.
  • the non-slip 23 can be arranged at one place or two or more places at an arbitrary position in the circumferential direction of the annular member 21.
  • the lid member 22 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic.
  • the lid member 22 may be rigid and inflexible. Further, the lid member 22 may be flexible and deformable.
  • FIG. 3A and FIG. 3B illustrate the container 30 of the third embodiment.
  • the container 30 has a container body 1 having an opening 2a at the upper end of the tubular member 2, an annular member 31 joined to the upper end of the tubular member 2, and a lid for opening and closing the opening 2a. It includes a member 32.
  • the configuration of the container body 1 is the same as that of the first embodiment.
  • the top surface portion 32a of the lid member 32 can be configured in the same manner as the top surface portion 15a of the first embodiment.
  • the annular member 31 has a joint portion 31a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 31b extending upward from the joint portion 31a.
  • the lid member 32 is joined to the rim portion 31b by a screw 33.
  • the lid member 32 is directly joined to the container body 1 by the screw 33, it is difficult for the container body 1 to withstand the opening and closing of the lid member 32.
  • the annular member 31 is reinforced. Therefore, even if the lid member 32 is joined by the screw 33, the container body 1 can withstand the opening and closing of the lid member 32. Details are shown as the height H of the joint portion 45a in FIG.
  • the height of the joint portion that joins the annular member 31 to the upper end portion of the tubular member 2 in the vertical direction is, for example, about 5 mm, or 3 to 3 to. It is preferably about 15 mm, more preferably about 5 to 12 mm.
  • a male screw 33a is formed on the outer peripheral surface of the mouth edge portion 31b
  • a female screw 33b is formed on the inner surface of the lid member 32
  • the inner surface of the lid member 32 is opposed to the outer peripheral surface of the mouth edge portion 31b.
  • a female screw may be formed on the inner surface of the rim portion 31b
  • a male screw may be formed on the outer peripheral surface of the lid member 32.
  • the lid member 32 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic.
  • the lid member 32 may be rigid and inflexible.
  • the lid member 32 may be flexible and deformable, but the portion where the female screw 33b is formed is preferably strong enough to withstand the connection and release of the screw.
  • the container body 1 has bottom members 3 and 4 joined to the tubular member 2 at the bottom surface of the tubular member 2. Inside surrounded by the tubular member 2, a content accommodating portion 2b is configured. The tubular member 2 and the bottom surface members 3 and 4 are joined by a bottom surface joint portion 2c.
  • the bottom surface joint portion 2c bends the peripheral edge portion 3b of the bottom surface member 3 with respect to the bottom surface portion 3a. , It is configured to face one surface of the tubular member 2.
  • the surface of the tubular member 2 joined to the peripheral edge portion 3b may be an inner surface or an outer surface.
  • the surface of the peripheral edge portion 3b joined to the tubular member 2 may be an inner surface or an outer surface.
  • the inner surface is a surface on the side in contact with the accommodating portion 2b
  • the outer surface is a surface on the opposite side to the accommodating portion 2b.
  • the bending of the peripheral edge portion 3b of the bottom surface member 3 may be in a direction approaching the lower end portion of the tubular member 2 or in a direction away from the lower end portion of the tubular member 2.
  • the bottom surface portion 3a is provided at an upper position away from the lower end portion of the tubular member 2.
  • the peripheral edge portion 3b is bent downward from the bottom surface portion 3a
  • the peripheral edge portion 3b is bent upward from the bottom surface portion 3a.
  • the bottom surface portion 3a since the bottom surface portion 3a is configured so as not to come into contact with the installation surface, rubbing of the bottom surface portion 3a by the installation surface can be suppressed.
  • the bottom surface portion 3a may be reinforced by providing ribs or steps (height difference) on the bottom surface portion 3a.
  • the bottom surface portion 3a of the bottom surface member 3 is a substantially flat surface.
  • the peripheral edge portion 3b of the bottom surface member 3 is joined to the lower end portion of the tubular member 2 with the inner surface of the bottom surface member 3 inside the bottom surface portion 3a facing the inner surface of the tubular member 2.
  • the peripheral edge portion 3b of the bottom surface member 3 is joined to the lower end portion of the tubular member 2 with the outer surface of the bottom surface member 3 facing the inner surface of the tubular member 2.
  • the bottom surface member 3 may have a flexible and deformable configuration. As shown in FIG.
  • the bottom surface member 4 may be made of a molded product such as resin, metal (for example, aluminum), wood, paper, or ceramic.
  • the shape of the bottom surface member 4 is not particularly limited, but in addition to the installation portion 4a that can come into contact with the installation surface and the peripheral portion 4b that is joined to the bottom surface joint portion 2c, the central portion 4c that is bent upward on the installation surface. May have.
  • the bottom surface member 4 may have a rigid and inflexible configuration, or may have a flexible and deformable configuration.
  • the tubular member 2 is preferably composed of a first laminated body having a total thickness of 50 to 600 ⁇ m.
  • the total thickness of the first laminated body is more preferably 100 to 500 ⁇ m.
  • the tubular member 2 is preferably composed of a flexible laminate having three or more layers including a barrier layer and a resin layer.
  • a flat first laminated body having a length corresponding to the outer circumference is formed into a tubular shape, and surfaces having different thickness directions at both ends in the circumferential direction (one inner surface and the other outer surface) are formed.
  • the tubular member 2 can be bent or crushed.
  • the annular members 11, 21, 31 or the bottom members 3, 4 are flexible and deformable, the tubular member 2 is preferably flexible and highly flexible so that it can be easily bent or crushed.
  • the tubular member 2 is, for example, cylindrical, and the outer diameter of the tubular member 2 is 30 to 150 mm.
  • the tubular member 2 may have a triangular cylinder, a square cylinder, a pentagonal cylinder, or the like, an elliptical cylinder, or the like.
  • the outer diameter when the tubular member 2 has a square tubular shape is the distance between vertices and vertices, sides and sides, or vertices and sides facing each other, and when these are two or more, the minimum value and the maximum value. The value is preferably within the above range. Specific examples of the outer diameter of the tubular member 2 are not particularly limited, and examples thereof include 30 mm, 50 mm, 100 mm, and 150 mm.
  • the first laminated body constituting the tubular member 2 is composed of, for example, a laminated body including an inner sealant layer having a resin layer, a barrier layer having an aluminum foil or an aluminum vapor deposition layer, and an outer sealant layer having a resin layer. can do.
  • the barrier layer of the first laminated body may be made of an aluminum-deposited film.
  • the first laminated body may be composed of three or more laminated bodies having at least one resin layer on each side of the aluminum foil in the thickness direction.
  • the thickness of the aluminum foil contained in the first laminated body may be thinner than the thickness of the aluminum foil contained in the bottom surface member 3, and examples thereof include 6 ⁇ m and more.
  • the thickness of the aluminum-deposited film contained in the aluminum-deposited film may be thinner than the thickness of the aluminum foil.
  • the bottom surface member 3 may be composed of a second laminated body having a total thickness of 70 to 350 ⁇ m.
  • the second laminated body may be composed of, for example, three or more laminated bodies having at least one resin layer on each side of an aluminum foil having a thickness of 40 ⁇ m or more in the thickness direction.
  • the second laminate can be composed of, for example, a laminate including a sealant layer having a resin layer, a barrier layer having an aluminum foil, and a base material layer having a resin layer.
  • the second laminated body may be a film-shaped laminated body that becomes flat in the developed state, or may be a laminated molded body having a three-dimensional molded portion.
  • the outer diameter of the bottom member 3 is substantially equal to the outer diameter of the tubular member 2 minus twice the total thickness of the first laminated body constituting the tubular member 2 (hereinafter referred to as "set dimension A"). Is preferable. That is, it is preferable that the outer diameter of the bottom member 3 is substantially equal to the inner diameter of the tubular member 2.
  • the outer diameter of the bottom member 3 is preferably in the range of 90% to 110% of the above-mentioned set dimension A, and more preferably in the range of 95% to 105%.
  • the flexibility of the container body 1 is ensured, and when the containers 10, 20, and 30 are discarded, the container body 1 is folded and crushed. Or can be put together in small pieces. Further, the independence of the container 10 can be ensured by the thickness of the aluminum foil contained in the second laminated body without complicating the structure of the bottom joint portion 2c.
  • the upper limit of the thickness of the aluminum foil contained in the second laminated body is not particularly limited, but may be, for example, 200 ⁇ m or less.
  • the thickness of the aluminum foil contained in the second laminate include values of 40 ⁇ m, 50 ⁇ m, 70 ⁇ m, 80 ⁇ m, 100 ⁇ m, 120 ⁇ m, 150 ⁇ m, 180 ⁇ m, 200 ⁇ m, or intermediate or near these. Since the peripheral edge 3b of the bottom member 3 or the tubular member 2 has a tubular shape having a central axis in the vertical direction, it is possible to obtain rigidity that can withstand the load of the contents by ensuring a sufficient thickness of the laminated body. it can. By using a resin layer for the composition of the first laminated body and the second laminated body, the puncture resistance can be improved.
  • the material constituting the sealant layer in the first laminated body and the second laminated body include thermoplastic resins.
  • specific examples of the sealant material include polyolefin resins such as polyethylene (PE) and polypropylene (PP), polyester resins such as polyethylene terephthalate (PET), cycloolefin polymers (COP), and cyclic resins such as cycloolefin copolymer (COC).
  • PE polyethylene
  • PP polypropylene
  • PET polyethylene terephthalate
  • COP cycloolefin polymers
  • COC cycloolefin copolymer
  • At least one or more of olefin resin, adhesive resin, coating agent and the like can be mentioned.
  • Examples of the material constituting the base material layer in the second laminate include nylon (aliphatic polyamide), polyester and the like.
  • the thickness of the base material layer is, for example, 5 to 50 ⁇ m, more preferably 10 to 30 ⁇ m.
  • a thermoplastic resin such as polyethylene may be further laminated on the outside of the base material layer.
  • the properties of the contents contained in the container body 1 are arbitrary, such as liquid, solid, powder, granular material, and a mixture of two or more of these.
  • the type of contents is not particularly limited, and examples thereof include beverages, foodstuffs, seasonings, cosmetics, pharmaceuticals, detergents, adhesives, household products, and industrial products.
  • Each member constituting the container may be provided with one or more functionalities such as an oxygen absorption function, an odor absorption function, and a non-adsorption function.
  • the tubular member 2 and the bottom members 3 and 4 may each have at least one or more printed patterns.
  • Each member constituting the container body 1 is not limited to resin, and different materials such as paper, cloth, non-woven fabric, and fibers may be laminated or blended.
  • Paper materials may be visually arranged on the outer surfaces of the containers 10, 20 and 30, or natural designs such as wood grain and stone grain may be applied.
  • a water-resistant material such as resin in order to suppress moisture absorption of the paper material.
  • Examples of the configuration of the first laminated body and the second laminated body include three layers of polyethylene / aluminum / polyethylene and four layers of polyethylene / paper / aluminum / polyethylene (the paper layer is outside the aluminum layer). An appropriate resin layer, adhesive layer, or the like may be added to any of these locations.
  • the containers 10, 20 and 30 are wide-mouthed containers having self-supporting properties, the contents can be easily taken out even if they are filled with a viscous substance such as cream or wax.
  • a viscous substance such as cream or wax.
  • the annular members 11, 21, and 31 can be made of, for example, a material containing a thermoplastic resin.
  • the molding method of the annular members 11, 21, and 31 include injection molding, compression molding, blow molding, extrusion molding, pressure molding, and draw molding.
  • the method for joining the annular members 11, 21, 31 and the tubular member 2 include heat welding, adhesion, and hot melt. It is also possible to join the annular member 11, 21, 31 and the tubular member 2 by insert molding the annular member 11, 21, 31 to the tubular member 2.
  • FIG. 5A shows an example in which the annular member 41 is joined to the inner surface and the outer surface of the tubular member 2 in the upper end portion of the tubular member 2.
  • the annular member 41 may have a groove portion 41a into which the upper end portion of the tubular member 2 is inserted.
  • FIG. 5B shows an example in which the annular member 42 is joined to the inner surface of the tubular member 2 among the upper end portions of the tubular member 2.
  • FIG. 5C shows an example in which the annular member 43 is joined to the outer surface of the tubular member 2 among the upper end portions of the tubular member 2.
  • the annular member 44 may have a protrusion 44a that sandwiches the upper end portion of the tubular member 2 at at least one of the outer circumferences of the opening 2a of the tubular member 2.
  • the annular member 44 may be joined to only one of the outer surface and the inner surface of the tubular member 2 except for the portion having the protrusion 44a.
  • the protrusion 44a may have a groove 44b into which the upper end of the tubular member 2 is inserted.
  • the annular member 45 may have a joint portion 45a with respect to the upper end portion of the tubular member 2 and a mouth edge portion 45b extending upward from the joint portion 45a.
  • the tubular member 2 and the annular members 41, 42, 43, 44, 45 can be joined by sandwiching them with a jig (not shown) or the like and applying heating, ultrasonic waves, or the like.
  • a jig not shown
  • the bottom surface members 3 and 4 described above may be joined to the tubular member 2.
  • the bottom member 3 and 4 may be joined to the tubular member 2 after the tubular member 2 is joined to the annular member 41, 42, 43, 44, 45.
  • the width of the welded portion (dimension in the direction intersecting the circumferential direction) when the annular members 41, 42, 43, 44, 45 are joined to the tubular member 2 by the welded portion in the circumferential direction is, for example, about 5 mm. Alternatively, it is preferably about 3 to 20 mm.
  • the welded portion between the annular members 41, 42, 43, 44, 45 and the tubular member 2 may be a welded portion continuous in the circumferential direction, and a welded portion shorter than the peripheral length, such as a point shape or a linear shape, may be formed in the circumferential direction. It may be formed at appropriate intervals.
  • the wall thickness of the annular member 41, 42, 43, 44, 45 at the position where the tubular member 2 is joined to the annular member 41, 42, 43, 44, 45 is preferably about 0.4 to 20 mm, for example.
  • the configurations of the annular members 41, 42, 43, 44, and 45 can be applied to the annular members 11, 21, and 31 of the containers 10, 20, and 30 described above.
  • the bottom members 3 and 4 have a tubular shape before being joined to the tubular member 2.
  • the member 2 may be joined to the annular member 45.
  • the joining jig can be inserted into the accommodating portion 2b from the bottom surface side of the tubular member 2 and brought closer to the joining portion 45a.
  • the height H of the joint portion 45a in the vertical direction is, for example, about 5 mm or about 3 to 15 mm.
  • the intermediate region 45c between the joint portion 45a and the rim portion 45b there may be a portion thinner than the joint portion 45a or the rim portion 45b.
  • the wall thickness of the intermediate region 45c may be, for example, about 1 mm.
  • the joint portion 45a of the annular member 45 may be configured such that the thickness gradually decreases toward the lower end portion of the joint.
  • the joining surface between the joining portion 45a and the tubular member 2 may be joined not only on a flat surface, a cylindrical surface, or the like, but also on a curved surface, a hemispherical surface, or the like.
  • the joint surface When the joint surface is curved, it may be curved in any of the vertical direction, the circumferential direction, and the like, and the width of the welded portion with respect to the tubular member 2 is larger than the height H of the joint portion 45a along the curvature. You may become.
  • the self-supporting packaging container of the present invention can achieve both strength and disposability even with a wide mouth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Packages (AREA)
  • Tubes (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Closures For Containers (AREA)
  • Laminated Bodies (AREA)
  • Bag Frames (AREA)

Abstract

本発明は、自立性を有する包装容器において、広口にしても強度と廃棄性を両立することが可能な容器を提供する。本発明の容器は、筒状部材（２）の上端部に開口部（２ａ）を有する容器本体（１）と、筒状部材（２）の上端部に接合された環状部材（１１）と、開口部（２ａ）を開閉可能に封止する蓋部材（１２）と、を備え、容器本体（１）は、筒状部材（２）の底面部において筒状部材（２）と接合された底面部材を有し、筒状部材（２）は、バリア層と樹脂層を含む３層以上のフレキシブルな積層体から構成され、蓋部材（１２）は、環状部材（１１）に対して、ヒンジ、嵌合又はネジのいずれかにより、開閉可能に連結されている。

Description

容器
　本発明は、自立性を有する容器に関する。
　本願は、２０１９年７月２日に日本国で出願された特願２０１９－１２３８２５号に基づき優先権を主張し、その内容をここに援用する。
　特許文献１には、胴部材の上下両端部に内側へ折り曲げてなる環状の胴側端部接合部をそれぞれ形成し、上下の閉塞部材の外周部を上下の胴側端部接合部にそれぞれ接合して、胴部材の上下両端部を上下の閉塞部材で閉塞したパウチ容器が記載されている。
特開２０１５－２０７８７号公報
　特許文献１に記載のパウチ容器においては、自立安定性及び保形性に優れるとともに意匠性に優れ、減容化が可能で、しかも胴部材と閉塞部材との液密性を十分に確保可能とされている。しかし、上側の閉塞部材が柔軟なフィルム材からなり、注出口が細口であるため、液状物等の流動性が高い内容物であっても、取出しが容易でない。特に、クリーム類や固形物等の流動性が低い内容物には適用が困難であった。
　また、積層フィルムを主体とした軟包装容器は、軽量で廃棄性に優れるが、内容物が充填された容器の積載効率は悪く、落下強度、破袋強度等の容器強度が低い。また、現在多く見られる紙製のカートンやブリックパック（登録商標）のような容器は、形状が安定して積載効率は優れ、しかも軽量であるが、容器の強度、特に、紙製容器に使用される基材の層間強度が劣るため、容器の形状によっては、落下等の衝撃に弱いことが課題である。また、紙製容器では、耐突き刺し性が劣る上、光沢等の外観の意匠性がフィルム容器より劣る。一方、ブローボトル等の成形容器やアルミ缶などは、強度は高いが、廃棄の際にかさ高になってしまう。
　本発明は、上記事情に鑑みてなされたものであり、自立性を有する包装容器において、広口にしても強度と廃棄性を両立することが可能な容器を提供することを課題とする。
　前記課題を解決するため、本発明の一態様に係る容器は、筒状部材の上端部に開口部を有する容器本体と、前記筒状部材の上端部に接合された環状部材と、前記開口部を開閉可能に封止する蓋部材と、を備え、前記容器本体は、前記筒状部材の底面部において前記筒状部材と接合された底面部材を有し、前記筒状部材は、シーラント層を含む３層以上のフレキシブルな積層体から構成され、前記蓋部材は、前記環状部材に対して、ヒンジ、嵌合又はネジのいずれかにより、開閉可能に連結されている。
　前記蓋部材を前記環状部材に連結する構成がヒンジからなってもよい。
　前記容器がジャー容器であってもよい。
　前記筒状部材は、総厚みが１００～５００μｍである第１積層体からなり、前記筒状部材の外径は、３０～１５０ｍｍであってもよい。
　前記底面部材は、総厚みが７０～３５０μｍである第２積層体からなり、前記第２積層体は、厚みが４０μｍ以上のアルミニウム箔の厚み方向の両側にそれぞれ少なくとも１層の樹脂層を有する３層以上の積層体であってもよい。
　前記底面部材の周縁部は、前記底面部に対して屈曲されて、前記筒状部材の下端部に接合されていてもよい。
　前記底面部材が、樹脂またはアルミの成形品からなる構成でもよい。
　前記蓋部材が、樹脂またはアルミの成形品からなる構成でもよい。
　本発明によれば、フレキシブルな筒状部材と蓋部材との間に環状部材を接合し、蓋部材と環状部材との間で容器を開閉するように構成したので、広口にしても強度と廃棄性を両立することができる。
第１実施形態の容器を斜視図で例示したものである。 第１実施形態の容器を分解斜視図で例示したものである。 第２実施形態の容器を斜視図で例示したものである。 第２実施形態の容器を分解斜視図で例示したものである。 第３実施形態の容器を斜視図で例示したものである。 第３実施形態の容器を分解斜視図で例示したものである。 筒状部材と底面部材との接合部を例示する断面図である。 筒状部材と底面部材との接合部を例示する断面図である。 筒状部材と底面部材との接合部を例示する断面図である。 筒状部材と環状部材との接合部を例示する断面図である。 筒状部材と環状部材との接合部を例示する断面図である。 筒状部材と環状部材との接合部を例示する断面図である。 筒状部材と環状部材との接合部の別の例を示す断面図である。 筒状部材と環状部材との接合部のさらに別の例を示す断面図である。
　以下、好適な実施形態に基づき、図面を参照して本発明を説明する。
　図１Ａ及び図１Ｂに、第１実施形態の容器１０を例示する。この容器１０は、筒状部材２の上端部に開口部２ａを有する容器本体１と、筒状部材２の上端部に接合された環状部材１１と、開口部２ａを開閉可能に封止する蓋部材１２と、を備えている。蓋部材１２は、環状部材１１に接合可能な基部１４と、基部１４に対してヒンジ１３を介して開閉可能に連結された天部１５とを有する。基部１４はリング状であり、天部１５は閉鎖した天面部１５ａを有する。内容物の密封を要しない場合は、天面部１５ａに穴をあけたり、網目や格子等を設けたりしてもよい。
　第１実施形態において、環状部材１１に、ヒンジ１３を介して、天部１５が連結されている（基部１４がない）構成でもよい。この場合、筒状部材２を金型内にインサートし、環状部材１１及び天部１５を一体成形して作製してもよい。
　詳細は後述するが、容器本体１は、底部を有するフレキシブルな容器であり、自立性を有する。容器本体１の自立性とは、少なくとも、内容物を充填して密封した状態で自立が可能な性質である。さらには、内容物を充填していない容器本体１が空の状態でも自立が可能である。また、筒状部材２は、底面を有しない単独の状態で、自立が可能であることが好ましい。
　環状部材１１は、筒状部材２の上端部に対する接合部１１ａと、接合部１１ａから上方に延びる口縁部１１ｂとを有する。基部１４は、例えば、嵌合、接着等により、口縁部１１ｂに接合されている。容器本体１に直接ヒンジ１３を接合した場合、容器本体１が蓋部材１２の開閉に耐えることは困難である。容器本体１の上端部に環状部材１１を設けることにより、容器本体１の上端部が補強される。このため、ヒンジ１３を介して天部１５を接合しても、容器本体１が蓋部材１２の開閉に耐えることができる。
　図１Ａ及び図１Ｂに示す例では、ヒンジ１３を有する蓋部材１２を環状部材１１とは別体としている。この場合、詳細は後述するが、容器本体１又はその筒状部材２の上端部に環状部材１１を接合する際に、ヒンジ１３を有する蓋部材１２が取り付けられていない状態で作業を行うことができるため、作業が容易になる。環状部材１１と基部１４とを接合する手法としては、例えば嵌合、接着等を採用することができる。環状部材１１が基部１４を兼ねるように構成した場合、環状部材１１にヒンジ１３を介して直接、蓋部材１２の天部１５を接合する（基部１４がない）こと、あるいは、図１Ａ及び図１Ｂに示す基部１４の形状をした環状部材１１を筒状部材２に直接、接合することも可能である。ヒンジ１３は、金属等のピン、軸等を介して、環状部材１１又は基部１４を、これと別体で成形された天部１５と開閉可能に連結した構成でもよいが、樹脂等から薄肉で屈曲可能にヒンジ１３を形成して環状部材１１又は基部１４と天部１５とを一体で成形することが、部品点数の削減等の観点から好ましい。天部１５を開いたとき、環状部材１１又は基部１４を介して容器本体１の内容物を取り出すことができる。容器本体１に内容物を充填した後は、開封前の内容物を保護するため、口縁部１１ｂ又は基部１４にアルミ箔や樹脂フィルム等のシール材を貼り付けてもよい。この場合は、シール材を剥がした後で、内容物を取り出すことができる。詳しくは後述する図７の接合部４５ａの高さＨとして示すが、筒状部材２の上端部に環状部材１１を接合する接合部の上下方向における高さは、例えば、５ｍｍ程度、あるいは３～１５ｍｍ程度が好ましく、さらに、５～１２ｍｍ程度が好ましい。
　ヒンジ１３に対する開閉を容易にするため、蓋部材１２には爪などを当てる凹部又は凸部等の滑り止め１６を設けてもよい。図１Ａ及び図１Ｂに示す例では、滑り止め１６が基部１４及び天部１５に設けられている。滑り止め１６は、基部１４又は天部１５の少なくとも一方に設けてもよい。ヒンジ１３が環状部材１１と蓋部材１２とを接合する場合は、滑り止め１６を環状部材１１又は蓋部材１２の少なくとも一方に設けてもよい。滑り止め１６は、環状部材１１の周方向において、ヒンジ１３と１８０°前後の角度で対向する位置に配置することが好ましい。蓋部材１２が、樹脂または金属（例えばアルミ）、木材、紙、セラミック等の成形品から構成されてもよい。蓋部材１２は、剛直で柔軟性がない構成でもよい。また、蓋部材１２が柔軟で変形する構成でもよい。
　図２Ａ及び図２Ｂに、第２実施形態の容器２０を例示する。この容器２０は、筒状部材２の上端部に開口部２ａを有する容器本体１と、筒状部材２の上端部に接合された環状部材２１と、開口部２ａを開閉可能に封止する蓋部材２２と、を備えている。容器本体１の構成は、第１実施形態と同様である。また、蓋部材２２の天面部２２ａは、第１実施形態の天面部１５ａと同様に構成することができる。
　環状部材２１は、筒状部材２の上端部に対する接合部２１ａと、接合部２１ａから上方に延びる口縁部２１ｂとを有する。蓋部材２２は、嵌合により、口縁部２１ｂに接合されている。容器本体１に直接、蓋部材２２を嵌合した場合、容器本体１が蓋部材２２の開閉に耐えることは困難である。容器本体１の上端部に環状部材２１を設けることにより、容器本体１の上端部が補強される。このため、嵌合により蓋部材２２を接合しても、容器本体１が蓋部材２２の開閉に耐えることができる。
　図２Ａ及び図２Ｂに示す例では、嵌合に対して蓋部材２２の開閉を容易にするため、環状部材２１及び蓋部材２２に爪などを当てる凹部又は凸部等の滑り止め２３が設けられている。滑り止め２３を環状部材２１又は蓋部材２２の少なくとも一方に設けてもよい。滑り止め２３は、環状部材２１の周方向において、任意の位置に１箇所又は２箇所以上に配置することができる。蓋部材２２が、樹脂、金属（例えばアルミ）、木材、紙、セラミック等の成形品から構成されてもよい。蓋部材２２は、剛直で柔軟性がない構成でもよい。また、蓋部材２２が柔軟で変形する構成でもよい。
　図３Ａ及び図３Ｂに、第３実施形態の容器３０を例示する。この容器３０は、筒状部材２の上端部に開口部２ａを有する容器本体１と、筒状部材２の上端部に接合された環状部材３１と、開口部２ａを開閉可能に封止する蓋部材３２と、を備えている。容器本体１の構成は、第１実施形態と同様である。また、蓋部材３２の天面部３２ａは、第１実施形態の天面部１５ａと同様に構成することができる。
　環状部材３１は、筒状部材２の上端部に対する接合部３１ａと、接合部３１ａから上方に延びる口縁部３１ｂとを有する。蓋部材３２は、ネジ３３により、口縁部３１ｂに接合されている。容器本体１に直接、蓋部材３２をネジ３３により接合した場合、容器本体１が蓋部材３２の開閉に耐えることは困難である。容器本体１の上端部に環状部材３１を設けることにより、容器本体１の上端部が補強される。このため、ネジ３３により蓋部材３２を接合しても、容器本体１が蓋部材３２の開閉に耐えることができる。詳しくは後述する図７の接合部４５ａの高さＨとして示すが、筒状部材２の上端部に環状部材３１を接合する接合部の上下方向における高さは、例えば、５ｍｍ程度、あるいは３～１５ｍｍ程度が好ましく、さらに、５～１２ｍｍ程度が好ましい。
　ネジ３３は、例えば口縁部３１ｂの外周面に雄ネジ３３ａを形成し、蓋部材３２の内面に雌ネジ３３ｂを形成し、口縁部３１ｂの外周に蓋部材３２の内面を対向させて組み合わされている。これとは反対に、例えば口縁部３１ｂの内面に雌ネジを形成し、蓋部材３２の外周面に雄ネジを形成してもよい。蓋部材３２が、樹脂、金属（例えばアルミ）、木材、紙、セラミック等の成形品から構成されてもよい。蓋部材３２は、剛直で柔軟性がない構成でもよい。また、蓋部材３２が柔軟で変形する構成でもよいが、雌ネジ３３ｂを形成した箇所は、ネジの結合及び解除に耐える程度の強度を有することが好ましい。
　次に、容器本体１の詳細について説明する。図４Ａ、図４Ｂ、及び図４Ｃに示すように、容器本体１は、筒状部材２の底面部において筒状部材２と接合された底面部材３，４を有する。筒状部材２に囲まれる内部には、内容物の収容部２ｂが構成されている。筒状部材２と底面部材３，４との間は、底面接合部２ｃにより接合されている。
　例えば、底面部材３が平面状の積層体等から構成される場合、図４Ａ及び図４Ｂに示すように、底面接合部２ｃは、底面部材３の周縁部３ｂを底面部３ａに対して屈曲させ、筒状部材２の一面に対向させて構成されている。ここで、周縁部３ｂと接合される筒状部材２の面は、内面でも外面でもよい。また、筒状部材２と接合される周縁部３ｂの面は、内面でも外面でもよい。なお、内面とは、収容部２ｂに接する側の面であり、外面とは、収容部２ｂとは反対側の面である。
　底面部材３の周縁部３ｂの屈曲は、筒状部材２の下端部に近づく方向でもよく、筒状部材２の下端部から遠ざかる方向でもよい。図４Ａ及び図４Ｂに示す例では、底面部３ａを筒状部材２の下端部から離れた上側の位置に設けている。さらに、図４Ａでは周縁部３ｂが底面部３ａから下方に屈曲され、図４Ｂでは周縁部３ｂが底面部３ａから上方に屈曲されている。図４Ａ及び図４Ｂのいずれの場合も、底面部３ａが設置面に接触しないように構成されるので、設置面による底面部３ａの擦れを抑制することができる。設置面と底面部３ａとで部分的な接触がある場合、底面部３ａにリブや段差（高低差）を設けて、底面部３ａを補強してもよい。
　底面部材３の底面部３ａは略平面である。図４Ａに示す例では、底面部材３の周縁部３ｂは、底面部３ａで内側となる底面部材３の内面を筒状部材２の内面に向けて、筒状部材２の下端部に接合されている。図４Ｂに示す例では、底面部材３の周縁部３ｂが、底面部材３の外面を筒状部材２の内面に向けて、筒状部材２の下端部に接合されている。底面部材３は、柔軟で変形する構成でもよい。
　図４Ｃに示すように、底面部材４が、樹脂、金属（例えばアルミ）、木材、紙、セラミック等の成形品から構成されてもよい。この場合、底面部材４の形状は特に限定されないが、設置面に接触し得る設置部４ａと、底面接合部２ｃに接合される周縁部４ｂに加えて、設置面の上方に屈曲した中央部４ｃを有してもよい。底面部材４は、剛直で柔軟性がない構成でもよく、柔軟で変形する構成でもよい。
　筒状部材２は、総厚みが５０～６００μｍである第１積層体から構成されることが好ましい。第１積層体の総厚みは、１００～５００μｍがより好ましい。筒状部材２は、バリア層と樹脂層を含む３層以上のフレキシブルな積層体から構成されることが好ましい。筒状部材２は、例えば、外周に対応する長さを有する平坦な第１積層体を筒状にして、周方向の両端部で厚さ方向の異なる面（一方の内面と他方の外面と）を互いに対向させて接合し（封筒貼り）、又は、周方向の両端部を径方向の外方に突出させて内面同士を対向させて接合し（合掌貼り）、又は周方向に継ぎ目のないチューブ状に成形する等して構成することができる。封筒貼り又は合掌貼りの場合は、周方向に継ぎ目が１箇所となるが、継ぎ目を周方向に２箇所以上としてもよい。
　環状部材１１，２１，３１又は底面部材４が剛直で柔軟性がない場合、筒状部材２との強度の差異が大きいと接合部の耐久性が低下するおそれがあるため、筒状部材２はコシがあり変形しにくいようなものが好ましい。この場合も、廃棄性の観点から、筒状部材２を折り曲げたり、潰したりすることが可能であることが好ましい。環状部材１１，２１，３１又は底面部材３，４が柔軟で変形するような場合、筒状部材２は柔軟性があり、折り曲げたり、潰したりしやすいようなフレキシブル性が高いものが好ましい。
　筒状部材２は例えば円筒状であり、筒状部材２の外径は、３０～１５０ｍｍである。筒状部材２は、三角筒、四角筒、五角筒などの角筒状、楕円筒状などでもよい。筒状部材２が角筒状である場合の外径とは、互いに対向する頂点と頂点、辺と辺、または頂点と辺との距離であり、これらが２以上ある場合は、最小値および最大値が上記範囲内であることが好ましい。筒状部材２の外径の具体例は、特に限定されないが、例えば、３０ｍｍ、５０ｍｍ、１００ｍｍ、１５０ｍｍ等が挙げられる。
　筒状部材２を構成する第１積層体は、例えば、樹脂層を有する内側シーラント層と、アルミニウム箔またはアルミニウム蒸着層を有するバリア層と、樹脂層を有する外側シーラント層とを含む積層体から構成することができる。第１積層体のバリア層は、アルミニウム蒸着フィルムから構成されてもよい。また、第１積層体が、アルミニウム箔の厚み方向の両側にそれぞれ少なくとも１層の樹脂層を有する３層以上の積層体から構成されてもよい。第１積層体に含まれるアルミニウム箔の厚みは、底面部材３に含まれるアルミニウム箔の厚みより薄くてもよく、例えば６μｍ以上が挙げられる。アルミニウム蒸着フィルムに含まれるアルミニウム蒸着膜の厚みは、アルミニウム箔の厚みより薄くてもよい。
　底面部材３は、総厚みが７０～３５０μｍである第２積層体から構成されてもよい。第２積層体は、例えば、厚みが４０μｍ以上のアルミニウム箔の厚み方向の両側にそれぞれ少なくとも１層の樹脂層を有する３層以上の積層体から構成されてもよい。第２積層体は、例えば、樹脂層を有するシーラント層と、アルミニウム箔を有するバリア層と、樹脂層を有する基材層とを含む積層体から構成することができる。第２積層体は、展開状態で平面状となるフィルム状の積層体でもよく、立体的な成形部を有する積層成形体でもよい。底面部材３の外径は、筒状部材２の外径から、筒状部材２を構成する第１積層体の総厚みの２倍を減じた寸法（以下「設定寸法Ａ」という）と略等しいことが好ましい。すなわち、底面部材３の外径は、筒状部材２の内径と略等しいことが好ましい。底面部材３の外径は、上記の設定寸法Ａの９０％～１１０％の範囲内が好ましく、９５％～１０５％の範囲内がより好ましい。
　第１積層体及び第２積層体の構成が上記の範囲であることにより、容器本体１の可撓性を確保し、容器１０，２０，３０を廃棄する際に容器本体１を折り畳んで、潰したり、小さくまとめたりすることができる。また、底面接合部２ｃの構造を複雑にしなくても、第２積層体に含まれるアルミニウム箔の厚みにより、容器１０の自立性を確保することができる。第２積層体に含まれるアルミニウム箔の厚みの上限としては特に限定されないが、例えば２００μｍ以下であってもよい。第２積層体に含まれるアルミニウム箔の厚みの具体例として、４０μｍ、５０μｍ、７０μｍ、８０μｍ、１００μｍ、１２０μｍ、１５０μｍ、１８０μｍ、２００μｍ、あるいはこれらの中間または近傍の値が挙げられる。底面部材３の周縁部３ｂまたは筒状部材２が上下方向に中心軸を有する筒状であるため、積層体の厚みを十分に確保することにより、内容物の荷重に耐え得る剛性を得ることができる。第１積層体及び第２積層体の構成に樹脂層を用いることにより、耐突き刺し性を向上させることができる。
　第１積層体及び第２積層体において、シーラント層を構成する材料としては、例えば、熱可塑性樹脂が挙げられる。シーラント材料の具体例としては、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）等のポリオレフィン系樹脂、ポリエチレンテレフタレート（ＰＥＴ）等のポリエステル系樹脂、シクロオレフィンポリマー（ＣＯＰ）、シクロオレフィンコポリマー（ＣＯＣ）等の環状オレフィン系樹脂、接着性樹脂、コーティング剤などの少なくとも１種以上が挙げられる。
　第２積層体において基材層を構成する材料としては、ナイロン（脂肪族ポリアミド）、ポリエステル等が挙げられる。基材層の厚みとしては、例えば５～５０μｍであり、より好ましくは１０～３０μｍである。基材層の外側には、ポリエチレン等の熱可塑性樹脂が、さらに積層されてもよい。
　容器本体１に収容される内容物の性状は、液体、固体、粉体、粒体、これらの２種以上の混合物など任意である。内容物の種類としては、特に限定されず、飲料品、食料品、調味料、化粧品、医薬品、洗剤、接着剤、家庭用品、工業製品などが挙げられる。容器を構成する各部材には、酸素吸収機能、匂い吸収機能、非吸着機能など、１又は２以上の機能性を付与してもよい。筒状部材２及び底面部材３，４は、それぞれ少なくとも１以上の印刷柄を有してもよい。容器本体１を構成する各部材は、樹脂に限らず、紙、布、不織布、繊維などの異種材料を積層または配合してもよい。
　容器１０，２０，３０の外面には、紙材を目視可能に配置したり、木目、石目などの天然に由来する意匠を施したりしてもよい。外面に紙材を配置する場合は、紙材の吸湿を抑制するため、樹脂等の耐水性材料で紙材を被覆することが好ましい。第１積層体及び第２積層体の構成として、ポリエチレン／アルミニウム／ポリエチレンの３層、ポリエチレン／紙／アルミニウム／ポリエチレンの４層（紙層はアルミニウム層より外側）が挙げられる。これらの任意の箇所に適宜の樹脂層や接着層等を加えてもよい。容器１０，２０，３０は、自立性を有する広口容器であるので、クリーム、ワックス等の粘稠物を充填しても、内容物の取出しが容易である。環状部材１１、２１、３１を筒状部材２と接合することにより、筒状部材２がフレキシブルであっても、ジャー容器を構成することができる。
　次に、上述した環状部材１１、２１、３１を筒状部材２と接合する構成について、説明する。環状部材１１、２１、３１は、例えば熱可塑性樹脂を含む材料から構成することができる。環状部材１１、２１、３１の成形方法としては、例えば射出成形、圧縮成形、ブロー成形、押出成形、圧空成形、絞り成形などが挙げられる。環状部材１１、２１、３１と筒状部材２とを接合する方法としては、例えば熱溶着、接着、ホットメルトが挙げられる。筒状部材２に対して環状部材１１、２１、３１のインサート成形により、環状部材１１、２１、３１と筒状部材２とを接合することもできる。
　図５Ａに、筒状部材２の上端部のうち、筒状部材２の内面及び外面に環状部材４１を接合した例を示す。環状部材４１は、筒状部材２の上端部が挿入される溝部４１ａを有してもよい。図５Ｂに、筒状部材２の上端部のうち、筒状部材２の内面に環状部材４２を接合した例を示す。図５Ｃに、筒状部材２の上端部のうち、筒状部材２の外面に環状部材４３を接合した例を示す。
　図６に示すように、環状部材４４は、筒状部材２の開口部２ａの外周のうち、少なくとも１箇所において、筒状部材２の上端部を挟み込む突起部４４ａを有してもよい。この場合、突起部４４ａを有する箇所以外では、環状部材４４が筒状部材２の外面又は内面のいずれか一方のみと接合されてもよい。突起部４４ａは、筒状部材２の上端部が挿入される溝部４４ｂを有してもよい。また、図７に示すように、環状部材４５が、筒状部材２の上端部に対する接合部４５ａと、接合部４５ａから上方に延びる口縁部４５ｂとを有していてもよい。
　筒状部材２と環状部材４１，４２，４３，４４，４５との接合は、両者を治具（図示せず）等で挟み込み、加熱、超音波などを作用させることで行うことができる。筒状部材２を環状部材４１，４２，４３，４４，４５と接合する際に、上述した底面部材３，４が筒状部材２と接合されていてもよい。あるいは、筒状部材２を環状部材４１，４２，４３，４４，４５と接合した後で、底面部材３，４を筒状部材２と接合してもよい。環状部材４１，４２，４３，４４，４５を筒状部材２に対して周方向の溶着部により接合するときの溶着部の幅（周方向に交差する方向の寸法）は、例えば、５ｍｍ程度、あるいは３～２０ｍｍ程度が好ましい。環状部材４１，４２，４３，４４，４５と筒状部材２との溶着部は、周方向に連続した溶着部でもよく、周長より短い、点状、線状等の溶着部を周方向に適宜の間隔で形成してもよい。筒状部材２が環状部材４１，４２，４３，４４，４５に接合される箇所における環状部材４１，４２，４３，４４，４５の肉厚は、例えば、０．４～２０ｍｍ程度が好ましい。なお、これらの環状部材４１，４２，４３，４４，４５の構成は、上述した容器１０，２０，３０の環状部材１１、２１、３１に適用することができる。
　図７に示すように、環状部材４５の口縁部４５ｂの内径が、筒状部材２の内径より相当程度小さい場合は、底面部材３，４を筒状部材２と接合する前に、筒状部材２を環状部材４５と接合してもよい。これにより、接合用の治具を、筒状部材２の底面側から収容部２ｂに挿入して、接合部４５ａに近づけることができる。環状部材４５の口縁部４５ｂの外面が、接合部４５ａの外面より径方向内側に屈曲している場合、上下方向における接合部４５ａの高さＨは、例えば、５ｍｍ程度、あるいは３～１５ｍｍ程度が好ましく、さらに、５～１２ｍｍ程度が好ましい。接合部４５ａと口縁部４５ｂとの間の中間領域４５ｃには、接合部４５ａ又は口縁部４５ｂより薄肉の箇所が存在してもよい。中間領域４５ｃの肉厚は、例えば１ｍｍ程度でもよい。環状部材４５の接合部４５ａは、接合下端部に向かって、徐々に厚みが減少していく構成としてもよい。また、接合部４５ａと筒状部材２との接合面は、平面、円筒面等での接合のみならず、湾曲面、半球面等での接合としても構わない。接合面が湾曲する場合は、上下方向、周方向等のいずれの方向で湾曲していてもよく、筒状部材２に対する溶着部の幅は、湾曲に沿って接合部４５ａの高さＨより大きくなってもよい。
　以上、本発明を好適な実施形態に基づいて説明してきたが、本発明は上述の実施形態に限定されず、本発明の要旨を逸脱しない範囲で種々の改変が可能である。改変としては、各実施形態における構成要素の追加、置換、省略、その他の変更が挙げられる。また、２以上の実施形態に用いられた構成要素を適宜組み合わせることも可能である。
　本発明の自立性を有する包装容器は、広口にしても強度と廃棄性を両立することができる。
１…容器本体、２…筒状部材、２ａ…開口部、２ｂ…収容部、２ｃ…底面接合部、３，４…底面部材、３ａ…底面部、３ｂ，４ｂ…底面部材の周縁部、４ａ…設置部、４ｃ…中央部、１０，２０，３０…容器、１１，２１，３１，４１，４２，４３，４４，４５…環状部材、１１ａ，２１ａ，３１ａ，４５ａ…接合部、１１ｂ，２１ｂ，３１ｂ，４５ｂ…口縁部、１２，２２，３２…蓋部材、１３…ヒンジ、１４…基部、１５…天部、１５ａ，２２ａ，３２ａ…天面部、１６，２３…滑り止め、３３…ネジ、３３ａ…雄ネジ、３３ｂ…雌ネジ、４１ａ，４４ｂ…溝部、４４ａ…突起部、４５ｃ…中間領域。

Claims (8)

  1. 　筒状部材の上端部に開口部を有する容器本体と、
    　前記筒状部材の上端部に接合された環状部材と、
    　前記開口部を開閉可能に封止する蓋部材と、を備え、
    　前記容器本体は、前記筒状部材の底面部において前記筒状部材と接合された底面部材を有し、
    　前記筒状部材は、シーラント層を含む３層以上のフレキシブルな積層体から構成され、　前記蓋部材は、前記環状部材に対して、ヒンジ、嵌合又はネジのいずれかにより、開閉可能に連結されていることを特徴とする容器。
  2. 　前記蓋部材を前記環状部材に連結する構成がヒンジからなることを特徴とする請求項１に記載の容器。
  3. 　前記容器がジャー容器であることを特徴とする請求項１又は２に記載の容器。
  4. 　前記筒状部材は、総厚みが１００～５００μｍである第１積層体からなり、前記筒状部材の外径は、３０～１５０ｍｍであることを特徴とする請求項１～３のいずれか１項に記載の容器。
  5. 　前記底面部材は、総厚みが７０～３５０μｍである第２積層体からなり、前記第２積層体は、厚みが４０μｍ以上のアルミニウム箔の厚み方向の両側にそれぞれ少なくとも１層の樹脂層を有する３層以上の積層体であることを特徴とする請求項１～４のいずれか１項に記載の容器。
  6. 　前記底面部材の周縁部は、前記底面部に対して屈曲されて、前記筒状部材の下端部に接合されていることを特徴とする請求項１～５のいずれか１項に記載の容器。
  7. 　前記底面部材が、樹脂またはアルミの成形品からなることを特徴とする請求項１～４のいずれか１項に記載の容器。
  8. 　前記蓋部材が、樹脂またはアルミの成形品からなることを特徴とする請求項１～７のいずれか１項に記載の容器。
PCT/JP2020/025486 2019-07-02 2020-06-29 容器 Ceased WO2021002319A1 (ja)

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