WO2023228998A1 - Élément de recouvrement, contenant avec un élément de recouvrement, combinaison d'un élément de recouvrement et d'un contenant, et procédé de production d'un élément de recouvrement - Google Patents

Élément de recouvrement, contenant avec un élément de recouvrement, combinaison d'un élément de recouvrement et d'un contenant, et procédé de production d'un élément de recouvrement Download PDF

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Publication number
WO2023228998A1
WO2023228998A1 PCT/JP2023/019455 JP2023019455W WO2023228998A1 WO 2023228998 A1 WO2023228998 A1 WO 2023228998A1 JP 2023019455 W JP2023019455 W JP 2023019455W WO 2023228998 A1 WO2023228998 A1 WO 2023228998A1
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WO
WIPO (PCT)
Prior art keywords
lid
container
small
opening
lid body
Prior art date
Application number
PCT/JP2023/019455
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English (en)
Japanese (ja)
Inventor
裕義 林
Original Assignee
株式会社Ky7
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 株式会社Ky7 filed Critical 株式会社Ky7
Priority to CN202380009763.XA priority Critical patent/CN117460679A/zh
Publication of WO2023228998A1 publication Critical patent/WO2023228998A1/fr

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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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers

Definitions

  • the present invention relates to a lid, a container with a lid, a combination of a lid and a container, and a method for manufacturing a lid.
  • contents food and beverages, etc. (hereinafter also referred to as “contents”) in a container with an opening at the top end, and then provide the container with the container closed by attaching a lid. There is.
  • the lid attached to the container is required to be made of paper-based material from the perspective of reducing environmental impact.
  • a method for attaching a lid to a container there is a known method (sealing method) in which the lid is bonded to the edge forming the outer periphery of the opening at the upper end of the container using a method such as a heat press.
  • a method for ingesting the contents stored in the lid there are known methods such as removing the lid and providing a tab as in the lid described in Patent Document 1.
  • the lid disclosed in Patent Document 1 is configured such that when the user pinches and pulls up the tab, a bell-shaped or gourd-shaped hole opens to form a drinking spout.
  • the method of attaching the lid to the container is to fit the structural part such as the bent part or the combination of the top part and the side wall part to the edge of the container.
  • a method (fitting method) is known in which the lid body is brought into contact with the edge forming the outer periphery of the opening at the upper end of the container by fitting the lid body together.
  • a method for forming such a lid a method is known in which a blank material for forming the lid is shaped.
  • a resin layer on the surface of the lid (on the surface facing the container, etc.).
  • a resin coat layer is usually formed on the surface of the container to make the container waterproof, and depending on the material of the resin material that makes up the resin layer, the adhesiveness with the resin that makes up the resin coat layer may be impaired. There is a risk that it will be difficult to adhere the container and the lid using the sealing method. Therefore, even if the types of resins constituting the resin coat layer formed on the surface of the container are diversified, there is still room for improvement in terms of making it possible to bond the container and the lid using a sealing method.
  • the lid body is formed of a paper-based material
  • the lid body forms a top surface, a curved part, and a side wall by shaping a blank material, it is necessary to form the side wall, the curved part, etc.
  • the shape will return to shape later due to the restoring force of the paper-based material. If the shape returns at a bend, etc., even if the lid is fitted onto the container, the contact between the lid and the container will loosen, creating a gap between the lid and the container, which may cause the contents of the container to There is a risk that it may spill out from the gap.
  • the present invention has been made in view of these problems, and is capable of suppressing moisture penetration into the fibers that make up the lid, and also makes it possible to suppress the penetration of moisture into the fibers that make up the lid.
  • the purpose of the present invention is to provide a lid body, a container with a lid body, a combination of a lid body and a container, and a method for manufacturing the lid body, which can bond the container and the lid body using a sealing method even when the types of resins are diversified. shall be.
  • a further object of the present invention is to provide a lid, a container with a lid, a combination of the lid and the container, and a method for manufacturing the lid, which can prevent the blank from returning to its shape after being shaped. The purpose is to
  • the gist of the present invention is the inventions according to the following (1) to (21).
  • the lid body according to (3) above which has an inclined portion that has the circumferential surface portion of the penetrating portion as an end portion and slopes upward in a direction away from the end portion.
  • the lid according to (4) above wherein the density of the fibers constituting the fiber sheet in the inclined portion is higher at a position closer to the end of the inclined portion.
  • the lid area corresponding part is provided with a weakened part that guides the dividing position in the lid area compatible part, and the weakened part includes a plurality of the through parts and at least two of the through parts. and at least one continuous portion formed between the lids according to (3) above.
  • the lid according to (6) above, wherein the continuous portion has a half-cut structure.
  • the lid region corresponding portion includes a base portion having a small opening having a smaller opening area than the opening surrounded by the edge of the container, and a small lid portion that opens and closes the small opening. a hinge portion connecting the base portion and the small lid portion; the small lid portion is configured to be rotatable with respect to the base portion around the hinge portion;
  • a knob is provided on the upper surface side of the small lid.
  • a holding structure that holds the small lid in a state in which the small opening is opened by rotating the small lid with respect to the base about the hinge, the small lid A knob is provided on the upper surface side, a claw is provided on the knob, and an extension is formed on the outer peripheral edge of the base, and the extension and the receiving part are connected to the holding structure.
  • the lid body according to (9) above which forms a lid.
  • the lid according to (1) above in which a raised portion is formed.
  • a container with a lid comprising the lid according to (1) above, and the container having the edge, the lid being joined to the container.
  • a combination of a lid and a container comprising the lid according to (1) above and the container having the edge.
  • (20) A method for manufacturing a lid body, comprising a dipping step of dipping a fiber sheet in a dipping liquid containing a resin material, and a drying step of drying the fiber sheet containing the dipping liquid.
  • (21) The method for manufacturing a lid body according to (20) above, wherein a shaping process is performed to shape the fiber sheet containing the immersion liquid during or before the drying process.
  • a lid body, a container with a lid body, a combination of a lid body and a container, and a manufacturing method of a lid body are provided.
  • the lid is formed by shaping a blank material, a lid, a container with a lid, and a combination of a lid and a container that can suppress the return of the shape after shaping the flank material; It also becomes possible to provide a method for manufacturing a lid body.
  • FIG. 1A is a plan view showing an example of the lid according to the first embodiment.
  • FIG. 1B is a cross-sectional view schematically showing a longitudinal cross-section taken along the line AA in FIG. 1A.
  • FIG. 1C is a cross-sectional view showing a part of the peripheral surface of the penetrating portion.
  • FIGS. 2A and 2B are cross-sectional views showing an example of the inclined portion of the lid according to the first embodiment.
  • FIG. 3A is a plan view showing an example of a lid body according to Modification 1 of the first embodiment.
  • FIG. 3B is a plan view showing an example of a lid body according to Modification 2 of the first embodiment.
  • 4A and 4B are plan views showing another example of the lid body according to the first embodiment.
  • FIG. 1A is a plan view showing an example of the lid according to the first embodiment.
  • FIG. 1B is a cross-sectional view schematically showing a longitudinal cross-section taken along the line AA in FIG.
  • FIG. 5A is a plan view showing an example of the lid according to the third embodiment.
  • FIG. 5B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line BB in FIG. 5A.
  • FIG. 6A is a plan view showing an example of the lid according to the fourth embodiment.
  • FIG. 6B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line CC in FIG. 6A.
  • FIG. 7A is a plan view showing an example of the lid according to the second embodiment.
  • FIG. 7B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line DD in FIG. 7A.
  • FIG. 8A is a plan view showing an example of a lid according to Modification 1 of the second embodiment.
  • FIG. 8B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line EE in FIG. 8A.
  • FIG. 9A is a plan view showing an example of a lid body according to modification 3 of the second embodiment.
  • FIG. 9B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line FF in FIG. 9A.
  • FIG. 9C is a cross-sectional view schematically showing one embodiment of the holding structure.
  • FIG. 10 is a plan view showing another example of the lid body according to the third modification of the second embodiment.
  • 11A and 11B are plan views showing another example of the lid body according to the third embodiment.
  • FIG. 11C is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line GG in FIG. 11B.
  • FIG. 12A is a plan view showing an example of the lid connection structure according to the third embodiment.
  • FIG. 12B is a cross-sectional view schematically showing a half-cut portion.
  • FIG. 13A is a plan view showing an example of a lid body according to Modification 2 of the second embodiment.
  • FIG. 13B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line HH in FIG. 13A.
  • FIG. 14A is a plan view showing an example of a container with a lid.
  • FIG. 14B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line II in FIG.
  • FIG. 15A is a perspective view showing an example of the lid according to the fifth embodiment.
  • FIG. 15B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line NN in FIG. 15A.
  • FIG. 16A is a perspective view showing an example of the lid according to the sixth embodiment.
  • FIG. 16B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line JJ in FIG. 16A.
  • FIG. 17A is a perspective view showing an example of the lid according to the seventh embodiment.
  • FIG. 17B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line KK in FIG. 17A.
  • FIG. 18A is a plan view showing an example of a lid body according to Modification 1 of the fifth embodiment.
  • FIG. 18B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line LL in FIG. 18A8.
  • 19A and 19B are plan views showing an example of a blank material for a lid body according to Modification 1 of the fifth embodiment.
  • FIG. 20A is a plan view showing an example of a lid body according to modification 4 of the fifth embodiment.
  • FIG. 20B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line MM in FIG. 20A.
  • FIG. 21 is a sectional view showing an example of a container with a lid.
  • the lid according to the present invention will be explained in detail based on the drawings.
  • the lid according to the present invention will be explained by taking as an example a lid used for a container (cup) for holding various beverages, such as a coffee cup, but it may also be used for a lid for a container for storing a beverage.
  • the invention is not limited to this, and can also be applied as a lid for a container containing foodstuffs other than beverages.
  • the lid according to the present invention can also be applied to containers that can accommodate various items other than food and drink, such as parts such as bolts and nuts, and items other than those mentioned above.
  • the lid according to the present invention will be described below using an example of a lid having a circular shape when viewed from above, the shape of the lid is limited to one having a circular shape when viewed from above.
  • the present invention can also be applied to various shapes other than circular shapes, such as polygonal shapes such as elliptical shapes, rectangular shapes, and triangular shapes, chamfered rectangular shapes, and chamfered polygonal shapes.
  • the Z-axis direction is the up-down direction (the upper side is the +Z direction, the lower side is the -Z direction), and the X-axis direction is the front-rear direction (the back side is the +X direction, the front side is the -X direction).
  • the lid 1 according to the first embodiment has an opening 102 formed at the upper end and an edge serving as the upper edge forming the outer periphery of the opening 102, as described later using FIGS. 14A, 14B, etc. 103 and is formed so as to be able to come into contact with the container 101 having the same.
  • the lid 1 has an opening 102 formed at the upper end (an opening 102 consisting of a portion surrounded by an edge 103) as shown in FIGS. 14A and 14B. ) and an edge 103 serving as an upper edge forming the outer periphery of the opening 102 so as to be able to be joined to the container 101 .
  • FIGS. 1A, 1B, and 1C are a perspective view and a sectional view showing an example of a container 150 with a lid, in which the lid 1 shown in FIGS. 1A, 1B, and 1C is joined to the container 101.
  • the lid 1 can be used by being joined along the edge 103.
  • a region joined to the edge 103 in a plan view of the lid 1 is referred to as a joining region R.
  • FIG. 1A is a plan view showing one embodiment of the lid body 1.
  • FIG. 1B is a cross-sectional view schematically showing a longitudinal section taken along line AA in FIG. 1A.
  • FIG. 1C is an enlarged view of a part of the peripheral surface 11 of the penetrating portion 10, which will be described later.
  • a container having flexibility at the edge 103 of the opening 102 is more preferably used. However, these things do not prohibit the container 101 from being a container with little or almost no flexibility, such as a metal container.
  • the joining region R corresponds to a region formed roughly in an annular shape along the opening 102 with a shape corresponding to the opening 102 of the container 101.
  • the lid body 1 is formed from a blank material 30.
  • the blank material 30 is obtained by processing a sheet material made of a material corresponding to the material of the lid 1 into a shape corresponding to the shape of the lid 1.
  • the lid 1 is not limited to the case where the lid 1 is formed of the blank material 30 only, and the lid 1 is formed of the blank material 30 with members such as the tab member 22. This includes a case where the lid body 1 has an attached structure, and also includes a case where the lid body 1 is subjected to various processing treatments such as shaping treatment (emboss treatment etc.) on the blank material 30.
  • the blank material 30 is formed from a sheet material having a fiber sheet 31 having fibers including a paper-based material and a resin material 32.
  • a resin material 32 is attached to the lid 1 according to the first embodiment shown in FIG. 1A.
  • the blank material 30 has a structure in which at least some of the fibers 31A forming the inside of the fiber sheet 31 contain a resin material 32.
  • the fiber sheet 31 containing a paper-based material is a raw material sheet made of so-called paper, pulp-based fiber, etc., which is obtained by drawing a slurry of fiber raw materials onto a mesh, drying or pressing drying, and making paper into a sheet.
  • Plant fibers and other fibers such as so-called air-laid sheets obtained by stacking spread fiber raw materials such as pulverized pulp obtained by crushing with a pulverizer using an air flow and fixing the fibers of the stack with a binder. Examples include so-called papers produced by sticking together.
  • fiber sheets containing paper-based materials include those having a laminated structure in which a plurality of sheets of paper as described above are laminated.
  • the fiber sheet 31 includes sheet materials having fibers other than pulp, such as chemical fibers, fibers with functions such as water resistance, metal fibers, and glass fibers.
  • the fiber sheet 31 may be composed of only the fibers 31A (only an intertwined structure of the fibers 31A), or may have a structure in which a plurality of fibers 31A are crosslinked with a crosslinking agent or the like, or may be made of a resin material described later. It may also contain other additives.
  • the plurality of fibers 31A are crosslinked with each other using a crosslinking agent, so that the shape of the fiber sheet 31 is stabilized and a defibrated state is less likely to be formed.
  • the fibers 31A constituting the fiber sheet 31 may be composed of one unit fiber, or may have a structure in which a plurality of unit fibers are intertwined. May be included. It is preferable that the fiber sheet 31 is formed by further intertwining a plurality of fibers having such a structure.
  • the paper-based material may not only consist of pulp, but may also contain fibers such as non-pulp natural fibers, synthetic fibers, and recycled fibers, but preferably contains 50% by mass or more of pulp, and 70% by mass or more. Those containing at least 80% by mass are more preferred, and those containing at least 80% by mass are particularly preferred, and those containing 100% by mass are particularly preferred.
  • pulp must be at least 50% by mass of the entire composite material. It is preferable that the content of pulp is contained, and it is particularly preferable that the pulp content is 80% by mass or more. The higher the pulp content, the more easily the paper-based material is biodegradable, which is preferable.
  • the resin material 32 attached to the fibers 31A is not particularly limited, and examples thereof include synthetic resins and natural resins.
  • synthetic resins include olefin resins such as polyethylene (PE) and polypropylene (PP), styrene resins such as polystyrene (PS), acrylic resins such as polyacrylate and polymethacrylate, polyvinyl chloride (PVC), and polyvinyl chloride (PVC).
  • Vinyl resins such as vinyl acetate, polyamide resins, polyimide resins, polyester resins such as polyethylene terephthalate (PET), fluorine resins, polycarbonate resins (PC), polyether ether ketone (PEEK), and polyether sulfone.
  • PES polyether resin
  • PBT butylene terephthalate
  • PVA polyvinyl alcohol
  • EVA ethylene-vinyl acetate copolymer resin
  • STYPE unsaturated carboxylic acid polymers or copolymers, and their salts. Examples include synthetic polymers.
  • the resin material 32 is preferably a biodegradable resin that causes fewer environmental pollution problems.
  • biodegradable resins include microbial-produced biodegradable resins such as polyhydroxyalkanoate (PHA) and PHA-based copolymers; starches mainly made from cellulose derivatives such as cellulose acetate and starch such as corn starch; Natural product-based biodegradable resins such as polylactic acid (PLA), polylactic acid/polycaprolactone copolymers, polylactic acid/polyether copolymers, etc., polybutylene succinate (PBS), polyester resins, etc.
  • PHA polyhydroxyalkanoate
  • PHA-based copolymers starches mainly made from cellulose derivatives such as cellulose acetate and starch such as corn starch
  • Natural product-based biodegradable resins such as polylactic acid (PLA), polylactic acid/polycaprolactone copolymers, polylactic acid/polyether copolymers, etc., polybuty
  • Succinate resins such as butylene succinate adipate (PBSA) and polyethylene terephthalate succinate (PETS), chemically synthesized biodegradable resins such as polycaprolactone and polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), carboxyethyl cellulose, carboxy Polysaccharide derivatives such as methylated starch or its salts, starch, cellulose resins such as methylcellulose, ethylcellulose, nitrocellulose, cellulose acetate, etc., natural substances such as guar gum, trantho gum, xanthan gum, sodium alginate, carrageenan, gum arabic, gelatin, casein, etc.
  • Other examples include polysaccharides, polyglycolic acid (PGA), polybutylene adipate/terephthalate, and biodegradable polyolefins (product name: Biorecover, product name: CraDrop, etc.).
  • At least some of the resin material 32 is attached to at least some of the fibers 31A forming the inside of the fiber sheet 31.
  • the cases where the resin material 32 is attached to the fibers 31A include cases where the resin material 32 is attached to the surface of the fibers 31A, and cases where the inside of the fibers 31A is impregnated with the resin material 32.
  • the fibers 31A constituting the fiber sheet 31 include fibers such as non-pulp natural fibers, synthetic fibers, and recycled fibers in addition to pulp, at least a part of the resin material 32 is made of pulp among the fibers 31A. It attaches to the fibers formed by.
  • the resin material 32 adheres to fibers made of pulp among the fibers 31A.
  • this does not prohibit at least a portion of the resin material 32 from adhering to fibers such as non-pulp natural fibers, synthetic fibers, and recycled fibers among the fibers 31A.
  • the resin material 32 may fill at least a portion of the space (gap space) formed between the fibers 31A constituting the fiber sheet 31 (that is, the resin material 32 may be filled between at least some of the fibers 31A). (the interstitial space may be substantially occupied by the resin material 32).
  • the lid body 1 has a joint area corresponding part 5A and a lid area corresponding part 5B.
  • the bonding area corresponding portion 5A is a portion of the lid 1 that corresponds to a region that is bonded to the container 101 along the edge 103 of the container 101. That is, the joint region corresponding portion 5A is a portion of the lid 1 corresponding to the joint region R (the region facing the edge 103 of the container 101 and the region joined to the container 101). In the lidded container 150, the joint region corresponding portion 5A is a portion of the lid 1 that forms the joint 151 between the lid 1 and the container 101. Specifically, in a plan view of the lid 1 (in the example of FIG.
  • a portion forming the joint region R is defined as the joint region corresponding portion 5A.
  • the joint region corresponding portion 5A is usually formed in an annular shape as shown in FIG. 1A. Particularly, as shown in FIG. 1A, when the edge 103 of the container 101 is formed approximately in an annular shape, the joining region R becomes an annular shape, and the joining region corresponding portion 5A is also formed in a plan view of the lid 1. , is roughly circular.
  • the outer edge of the bonding area corresponding portion 5A is determined according to the position of the outer edge of the bonding area R.
  • the outer edge of the joint region corresponding portion 5A may be located at the outer circumferential edge of the lid 1, or may be located inside the outer circumferential edge of the lid 1 as shown in the example of FIG. 1A. If the bonding region R between the lid 1 and the container 101 is not formed continuously, the portion sandwiched between the adjacent bonding regions R and the portion facing the edge 103 may also be formed into a bonding region corresponding portion 5A, which will be described later. shall be included.
  • the resin material 32 is attached to at least some of the fibers 31A forming the inside of the fiber sheet 31 in the portion corresponding to the joint area corresponding portion 5A.
  • the lid region corresponding portion 5B is a portion of the lid body 1 that is inside from the joint region corresponding portion 5A. That is, the lid region corresponding portion 5B is a portion inside from the inner edge of the joining region corresponding portion 5A, and the outer peripheral end of the lid region corresponding portion 5B is common to the inner edge of the joining region corresponding portion 5A.
  • the lid region corresponding portion 5B is a portion of the lidded container 150 that covers the opening 102.
  • the part that covers the opening 102 is a part that covers at least a part of the opening 102, and includes a case where a window is formed in a part as described in the third embodiment, and a part that covers at least a part of the opening 102.
  • the portion outside from the outer peripheral end of the lid region corresponding portion 5B of the lid body 1 is called a lid region non-forming portion 5C (in the second embodiment described later, the portion is called a lid region non-forming portion 5C).
  • the non-forming portion 5C corresponds to a portion of the base portion 2 that is outward from the inner edge of the bonding region corresponding portion 5A).
  • the through portion 10 is formed at least in the lid region corresponding portion 5B.
  • the penetrating portion 10 has a structure (a penetrating structure) cut in the vertical direction (thickness direction, Z-axis direction) from one side to the other side of the blank material 30, and is a so-called cut portion 8.
  • the penetrating portion 10 has a circumferential surface portion 11 and an end portion 12 .
  • the peripheral surface portion 11 extends in the longitudinal direction of the penetrating portion 10, and an end portion 12 is formed as a cut end.
  • the through-hole 10 can function as a gas vent.
  • the gas venting portion refers to a portion through which gas can pass from one side of the lid body 1 to the other side (from the opposing surface 73 side to the exposed surface 72 side).
  • the penetrating portion 10 may have another function in addition to functioning as a gas venting portion.
  • the penetration part 10 is an insertion opening 19 or an insertion opening into which a member is inserted from the outside of the container with a lid 150 toward the inside of the container 101 (space 105). It may function as a part constituting the mouth 19. In the example of FIG.
  • the lid body 1 has a penetration part 10, and the penetration part 10 is formed so that it can function as an insertion opening 19.
  • a straw or the like is exemplified as a member that can be inserted through the insertion port 19.
  • the penetrating portion 10 shown in the example of FIG. 1A can also function as a gas venting portion, as described above.
  • the shape of the penetrating portion 10 is not particularly limited as long as it can be formed by cutting.
  • a notch 8 in the shape of a cross in the vertical direction of the blank material 30 is formed in the lid 1, and this notch 8 forms the through part 10.
  • the penetrating portion 10 also serves as the insertion opening 19 as described above. Note that this is just an example, and the shape of the notch 8 forming the penetration part 10 is not limited to a cross shape as long as it can be used as the insertion opening 19, and is illustrated in FIGS. 4A and 4B. It may be a C-shape such as this, or various shapes such as a tongue-like shape may be used.
  • 4A and 4B are plan views schematically showing another embodiment in which the lid body 1 has an insertion opening 19 as the penetration part 10.
  • a cross section of the fiber sheet 31 is exposed in a region forming the peripheral surface portion 11 of the penetrating portion 10 (region of the peripheral surface portion 11). Further, at this time, at least a portion of the resin material 32 is exposed on the peripheral surface portion 11, that is, on at least a portion of the cross section of the fiber sheet 31. At least a portion of the resin material 32 is exposed on the peripheral surface portion 11, as shown in FIG. 1C.
  • the resin material 32 may face the entire area of the peripheral surface portion 11 (the entire area of the cross section of the fiber sheet 31). In the example of FIG.
  • the inclined portion 13 is formed in a portion from the periphery of the penetrating portion 10 to the penetrating portion 10.
  • the inclined portion 13 has the peripheral surface portion 11 of the penetrating portion 10 as an end portion 13A, and is a portion that slopes upward in a direction away from the end portion 13A.
  • the inclined portion 13 may be formed only on one side of the lid 1, as shown in FIGS. 1B and 2A, or may be formed on both sides of the lid 1 (exposed surface 72 (not facing It may be formed on the surface facing the space 105 of the container 101 (the opposing surface 73).
  • the inclined part 13 forms an inclined surface on the exposed surface 72 side of the lid body 1
  • the inclined part 13 forms an inclined surface on the opposing surface 73 side of the lid body 1. are doing.
  • the density of the fibers 31A constituting the fiber sheet 31 in the sloped portion 13 is higher at a position closer to the end of the sloped portion.
  • the fiber sheet 31 it is preferable that the density of the fibers 31A at position P1 is higher than the density of the fibers 31A at position P2.
  • Such a structure can be realized by applying stronger pressure to positions closer to the peripheral surface 11 of the penetrating part 10 when forming the penetrating part 10. In this case, as shown in FIGS.
  • the inclined portion 13 is formed in a shape that slopes downward toward the penetrating portion 10. Note that the structure of the inclined portion and the density of fibers in the inclined portion is the same in the penetrating portions formed in the second to fourth embodiments described below.
  • the lid 1 according to the first embodiment can be manufactured, for example, as follows.
  • a fiber sheet 31 as a raw sheet formed of a material corresponding to the material of the lid 1 is immersed in an immersion liquid (immersion step).
  • the immersion liquid is a liquid containing the resin material 32 (resin-containing liquid).
  • the resin-containing liquid is, for example, a mixed liquid of the resin material 32, water, and a non-aqueous solvent.
  • a step (drying step) of drying the fiber sheet 31 (fiber sheet 31 containing the dipping liquid) that has been subjected to the dipping step is performed.
  • the blank material 30 is formed by processing the fiber sheet 31 that has been subjected to the drying process (the fiber sheet 31 to which the resin material 32 is attached) into a shape corresponding to the shape of the lid body 1.
  • the blank material 30 may be used as the lid 1 as it is.
  • the penetration part 10 is formed by forming the cut part 8 in the blank material 30, and the lid body 1 is formed by this.
  • examples of the resin material 32 included in the immersion liquid include acrylic resins and polyolefin resins, but biodegradable resins are preferable.
  • the non-aqueous solvent is not particularly limited as long as it can be mixed with the resin material, and examples include alcoholic solvents such as ethanol.
  • the water and non-aqueous solvent contained in the fiber sheet 31 containing the dipping liquid may be almost completely evaporated, or the fiber sheet 31 may have some moisture and non-aqueous solvent remaining.
  • the material of the resin material that forms the resin coat layer needs to be selected appropriately depending on the contents contained in the container, so there are various types of resin materials that can be used to form the resin coat layer. Sex is required. For this reason, if a resin layer is formed on the surface of the lid, depending on the material of the resin material that makes up the resin layer, the adhesion with the resin that makes up the resin coat layer may be impaired, and the sealing method may damage the adhesive between the container and the lid. There is a risk that it will be difficult to adhere the two. Therefore, there is room for improvement in terms of making it possible to bond the container and the lid using a sealing method even if the types of resins constituting the resin coat layer formed on the surface of the container are diverse.
  • the lid 1 according to the first embodiment, at least some of the resin material 32 is attached to at least some of the fibers 31A forming the inside of the fiber sheet 31 constituting the lid 1. Therefore, the resin material 32 can suppress moisture penetration into the fibers 31A. Furthermore, if a sealing method is applied when attaching the lid 1 to the container 101, there may be a space at least in part between the fibers 31A constituting the fiber sheet 31. The resin constituting the resin coat layer can enter the space, and the adhesive state between the resin coat layer and the lid 1 can be easily formed. That is, even if the resin material forming the resin coat layer has poor adhesion to the resin material 32, it may be easy to adhere the container 101 and the lid 1 using the sealing method. Next, a modification of the first embodiment will be described.
  • FIG. 3A is a plan view schematically showing an example of the lid body 1 according to Modification 1 of the first embodiment.
  • the weakened portion 14 includes a plurality of penetration portions 10 and at least one continuous portion 15 formed between the ends 12 of at least two penetration portions 10.
  • the weakened part 14 guides the position where division occurs (divided position) when a lifting or pressing force is applied to the weakened part 14 to form a divided part in the lid body. That is, the position where the division occurs is formed generally along the weakened portion.
  • the continuous portion 15 is destroyed, and the continuous portion 15 is penetrated with the continuous portion 15 as the end portion 12.
  • a division occurs along the portion 10, and an insertion opening 19 is formed (the insertion opening 19 is in an open state).
  • the layout of the weakened section 14 is not particularly limited, and may be determined according to conditions such as the function of the weakened section 14.
  • the continuous portion 15 is formed at one location, and a total of four penetrating portions 10 are formed.
  • the penetrating portion 10 is formed to extend radially from the continuous portion 15 in four different directions. Note that this is an example of the weakened portion 14, and in the case where the weakened portion 14 has a plurality of penetration portions 10 radially formed around the continuous portion 15, the penetration portion 10 extends from the continuous portion 15. It may extend in three directions in the direction of separation, or may extend in five or more directions. Furthermore, the penetrating portion 10 may extend in two directions away from the continuous portion 15.
  • the weakened portion 14 is formed in a cross shape in the example of FIG. 3A, it may be formed in a C shape as shown in FIG. 4B.
  • the continuous portion 15 is not limited to one location, but may be formed at multiple locations. In the example shown in FIG. 4B, continuous portions 15 are formed at three locations, and penetration portions 10 are formed in two directions from each continuous portion 15 (four penetration portions 10 in total). The plurality of penetration parts 10 are formed by curved cut parts 8 so that the weakened part 14 as a whole has a shape that roughly resembles the letter C.
  • the position of the weakened portion 14 is not particularly limited, it is preferably provided in the lid region corresponding portion 5B. In this case, a dividing position is formed in the lid region corresponding portion 5B.
  • the continuous portion 15 may be a portion formed not to penetrate the blank material 30 forming the lid body 1, and may be a non-cut portion, or may be a portion formed not to penetrate the blank material 30 forming the lid body 1.
  • the half-cut portion 16 may be formed by cutting the blank material 30 in the thickness direction within a range that avoids this.
  • FIG. 12B is a diagram for explaining one embodiment of the half-cut section 16.
  • the half-cut portion 16 is specified as a portion forming a half-cut structure, which is a structure in which the lid 1 is cut halfway in the thickness direction of the lid 1. Note that the half-cut portion 16 is not limited to a portion cut in the thickness direction of the lid 1 to half the thickness of the lid 1.
  • the half-cut portion 16 may have a structure in which it cuts more than half the thickness of the lid 1 while avoiding penetrating the lid 1, or a cut in the thickness direction of the lid 1 to an extent less than half the thickness of the lid 1. Contains an incised structure.
  • FIG. 3B is a plan view schematically showing an example of the lid 1 according to the second modification of the first embodiment.
  • the position and shape of the extending portion 7 are not particularly limited, but in the example of FIG. It is formed on the outer circumferential edge 50 of the forming portion 5C (corresponding to the outer circumferential edge 2A of the base portion 2 in the second embodiment described later), and the outer circumferential edge 7A of the extending portion 7 is gently curved in a convex shape.
  • the shape of the extending portion 7 is determined to be chevron-shaped.
  • a mark or text indicating the container 101 corresponding to the lid 1 can be placed on the extending portion 7. For example, letters such as S, M, and L are placed on the extending portion 7 by printing or the like. If the size of the container 101 is small, use the lid 1 with the letter S printed on it, and if the size of the container 101 is medium size, use the lid with the letter M printed on it. When the body 1 is used and the size of the container 101 is large, the types of the container 101 and the lid 1 are associated so that the lid 1 on which the letter L is printed is used. Thereby, when joining the lid 1 to the container 101, it is possible to suppress the possibility that the container 101 and the lid 1 are joined in an incorrect combination of different sizes.
  • the extending portion 7 can be used as a knob.
  • the lid 1 is not limited to this, and the penetrating portion 10 may form at least a part of the boundary between the opening edge of the small opening and the outer peripheral edge of the small lid, as shown in FIGS. 7A and 7B. . That is, as shown in FIGS. 7A and 7B, the lid 1 includes a base portion having a small opening having an opening area smaller than the opening 102 of the container 101, and a small lid portion that opens and closes the small opening. , a hinge portion connecting the base portion and the small lid portion may be provided. An embodiment having such a configuration will be referred to as a second embodiment. FIG.
  • FIG. 7A is a plan view showing an example of the lid body 1 according to the second embodiment.
  • FIG. 7B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line DD in FIG. 7A.
  • the second embodiment may be similar to the first embodiment except that the penetrating portion 10 forms at least a part of the boundary between the opening edge of the small opening and the outer peripheral edge of the small lid. Further, in the second embodiment, the insertion port 19 shown in the first embodiment may be further formed.
  • the lid 1 according to the second embodiment includes a base portion 2, a small lid portion 3, and a hinge portion 4, as shown in FIGS. 7A, 7B, etc.
  • the lid area corresponding part 5B of the lid body 1 has a base part 2, a small lid part 3, and a hinge part 4, and the lid area non-forming part 5C has a base part 2. ing.
  • the base portion 2 is defined as a portion that has a bonding region corresponding portion 5A and forms a small opening 6.
  • the base portion 2 can be a portion that determines the displacement standard of the small lid portion 3, which will be described later.
  • the base portion 2 and the small lid portion 3 form the exposed surface 72 of the lid 1 when viewed from above.
  • the bonding area corresponding portion 5A is located in the portion forming the bonding area R. It is formed on the base part 2.
  • the small opening 6 is formed so as to penetrate through the surface 73 of the lid 1 facing the container 101 and the surface of the lid 1 not facing the container 101 (the exposed surface 72 of the lid 1).
  • the small opening 6 is formed inside a portion corresponding to the joint region corresponding portion 5A in a plan view of the lid 1 so that its opening area is smaller than that of the opening 102 of the container 101.
  • the small opening 6 is for forming an entrance/exit for the contents (for example, drinks, food, etc.) in the space 105 of the container 101 when the lid 1 is joined to the container 101.
  • the small opening 6 forms an opening forming part 20 in combination with the small lid 3 described later.
  • the opening forming portion 20 is defined as a portion having a small opening 6 and a small lid 3. As shown in FIG. In the opening forming section 20, the small opening 6 opens and closes as the small lid 3 is displaced.
  • the opening forming portion 20 is configured such that the small lid 3 closes the small opening 6 and the small lid 3 is displaced to open the small opening 6, as shown in FIG. 7A. It is formed.
  • the small lid part 3 is rotated so as to pull up the small lid part 3 with respect to the base part 2, the small opening part 6 is exposed and becomes an exposure opening. That is, the opening forming part 20 is arranged so that when the small lid part 3 is pulled up with the lid body 1 attached to the container 101, the small opening part 6 and the small lid part can be visually recognized from the small opening part 6. It combines 3.
  • the small opening 6 when it is an exposed port, it can be used as a supply port for additional liquids such as drinks or solids such as ice, as will be described later. Furthermore, when a liquid such as a beverage is present inside the container 101 (space 105), the small opening 6 may be used as a drinking spout or spout for the beverage.
  • the lid body 1 is provided with a small lid portion 3.
  • the small lid part 3 is formed to be able to cover the small opening 6 in an openable and closable manner.
  • the small lid part 3 is formed so that it can be displaced to a pulled up state with respect to the base part 2, as will be described later using FIG. 9C.
  • An opening 6 is formed (opened).
  • the small lid 3 is arranged so that the outer peripheral contour shape of the small lid 3 follows the shape of the opening edge 6A of the small opening 6. The shape can be determined. In this case, with the small opening 6 closed by the small lid 3, it is easy to bring the end surface of the outer peripheral edge 3A of the small lid 3 into contact with the end surface of the opening edge 6A of the small opening 6.
  • the small lid part 3 is provided inside (lid area corresponding part 5B) (center CT side) than the joint area corresponding part 5A in plan view of the lid 1. There is.
  • the small lid part 3 is displaced (rotated) so that the small lid part 3 is in a lifted state.
  • the small lid part 3 is connected to the base part 2 by a hinge part 4. As the small lid part 3 is lifted about the hinge part 4, the small opening part 6 is exposed.
  • the small opening portion 6 is exposed as described above. This state is called the open lid state.
  • the state in which the small opening 6 is covered with the small lid 3 is called a closed state.
  • the lid body 1 even after the lid is in the open state (after the small opening 6 is exposed by raising the small lid part 3), it is possible to put the lid in the closed state again.
  • the end face of the opening edge 6A of the small opening 6 of the base part 2 can face the end face (outer peripheral end face) of the outer peripheral edge 3A of the small lid part 3.
  • the lid 1 has the hinge portion 4.
  • the hinge portion 4 is generally composed of a portion corresponding to a line segment connecting two base end portions 74 along the outer circumferential edge 3A of the small lid portion 3, and has a portion at the boundary between the base portion 2 and the small lid portion 3. handle.
  • the hinge portion 4 is a portion that serves as a rotation axis when the small lid portion 3 rotates.
  • the small lid part 3 rotates, not only the case where the small lid part 3 stands up from the base part 2 at a certain angle at the position of the hinge part 4, but also the front edge of the small lid part 3 from the hinge part 4 This includes a case where the small lid part 3 gradually curves and rises toward the part 75.
  • the base part 2 is connected to the small lid part 3 at least at the hinge part 4.
  • the structure of the hinge part 4 is not particularly limited as long as it is a part defined as a boundary between the base part 2 and the small lid part 3.
  • the hinge portion 4 may have a perforation structure or a half-cut portion, similar to the connection structure 17 described later.
  • the small lid part 3 and the small opening part 6 may be separated (or may be in a non-connected state).
  • the connection structure 17 may be formed as described later.
  • the peripheral surface portion 11 of the penetrating portion 10 forms an end surface of the outer peripheral edge 3A of the small lid portion 3 and an end surface of the opening edge 6A of the small opening portion 6. Further, the end portion 12 of the penetrating portion 10 is located at the base end portion 74 of the hinge portion 4.
  • the structure of the penetrating portion 10 is the same as that described in the first embodiment, so a description thereof will be omitted.
  • connection structure 17 Connection structure between base and small lid
  • the opening edge 6A of the small opening 6 of the base part 2 and the small lid part 3 A structure connected at the outer peripheral edge 3A may be formed.
  • the connection structure 17 is preferably configured as a weakened portion 14 that is more fragile than the small lid portion 3.
  • FIG. 12A is a diagram showing an example in which the connection structure 17 is the weakened portion 14. Since the connection structure 17 is the weakened portion 14, when the small lid portion 3 rotates relative to the base portion 2 around the hinge portion 4, the weakened portion 14 is destroyed (the continuous portion 15 is destroyed). can be done). Further, the small lid part 3 is raised up relative to the base part 2 while being separated from the base part 2 generally along the connection structure 17.
  • the weakened portion 14 is formed by a combination of the penetrating portion 10 and the continuous portion 15, as described in the first modification of the first embodiment. Therefore, when the connection structure 17 is the weakened part 14, the weakened part 14 is formed by a combination of the penetration part 10 and the continuous part 15 at the boundary position between the outer peripheral edge 3A of the small lid part 3 and the opening edge 6A of the small opening part 6.
  • the combination structure is a combination of a continuous part 15 and a penetrating part 10 along the longitudinal direction of the part where the end face of the opening edge 6A of the small opening part 6 and the end face of the outer peripheral edge 3A of the small lid part 3 face each other. This is a structure in which structures are arranged alternately (so-called perforation structure).
  • connection structure 17 is not limited to a perforation structure, and for example, the entire connection structure 17 may be formed as a half-cut portion 16 as shown in FIG. 12B.
  • the half-cut portion 16 is the same as the half-cut portion 16 described in the first embodiment using FIG. 12B, so a description thereof will be omitted.
  • connection structure 17 has the continuous portion 15 and the penetration portion 10
  • the continuous portion 15 may be a half-cut portion 16 as shown in FIG. 12B.
  • the penetration part 10 When the penetration part 10 is formed in the lid body 1 according to the second embodiment, the penetration part 10 is located at a position different from the boundary position between the outer peripheral edge of the small lid part and the opening edge of the small opening part. It may also be formed as a gas vent.
  • the connection structure 17 is formed at the boundary between the outer peripheral edge of the small lid and the opening edge of the small opening, and the entire connection structure 17 is formed as a half-cut portion 16, the penetration portion 10 may be formed in a different configuration than the connection structure 17.
  • the penetrating portion 10 may be formed at a boundary position between the outer peripheral edge of the small lid portion and the opening edge of the small opening portion, and at a position different from the boundary position. In this way, in the lid 1 according to the second embodiment, at least a portion of the penetrating portion may be formed at the boundary between the outer peripheral edge of the small lid and the opening edge of the small opening.
  • the lid 1 according to the second embodiment can obtain the same effects as the first embodiment.
  • FIG. 8A is a plan view schematically showing an example of the lid body 1 according to Modification 1 of the second embodiment.
  • FIG. 8B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line EE in FIG. 8A.
  • the lid 1 according to the first modification of the second embodiment may be the same as the second embodiment described above except for the configuration in which the small lid 3 is provided with the knob 21.
  • a description of other structures (base portion 2, hinge portion 4, etc.) other than the structure in which the portion 21 is provided will be omitted.
  • knob section In the example of the second embodiment shown in FIGS. 8A and 8B, when the small opening 6 is closed with the small lid 3, the exposed surface of the small lid 3 (exposed surface 72 of the lid 1) is A knob 21 is provided on the upper surface side.
  • the structure of the knob 21 is not particularly limited as long as the small lid 3 can be rotated about the hinge 4, but in the examples shown in FIGS. 8A and 8B, the tab member 22 is used as the knob 21. It is provided.
  • tab member 22 In the example of FIGS. 8A and 8B, when the small opening 6 is closed by the small lid 3, the tab member 22 has one end 22A of the tab member 22 joined to the small lid 3, and the tab member 22 The other end 22B is a free end.
  • the portion of the tab member 22 that is joined to the small lid portion 3 is referred to as a tab joint portion 23.
  • the portion of the tab member 22 on the free end side (the portion on the other end 22B side), excluding the tab joint portion 23, has a size and shape that allows the tab member 22 to be picked by hand. As long as it is formed, there are no particular limitations on its shape or structure.
  • the material of the tab member 22 may be the same as that of the blank material 30 described in the first embodiment, and may be made of a paper-based material.
  • the tab member 22 is mounted near the tip of the small lid 3. It is joined to the small lid part 3 at the position (that is, near the front edge 75).
  • the method for joining the tab member 22 to the small lid part 3 (that is, the method for forming the tab joint part 23) can be exemplified by various methods such as ultrasonic joining, heat sealing, and joining using an adhesive.
  • ultrasonic bonding is preferable as a method for forming the tab bonding portion 23 from the viewpoint of ease of bonding, bonding strength, and the like.
  • the formation position of the tab joint part 23 in the small lid part 3 is determined from the viewpoint of making it easy to raise the small lid part 3 by lifting the tab member 22 (rotating the small lid part 3). It is preferable that the position be shifted from the center of the figure 3.
  • the other end 22B side (free end side) of the tab member 22 is arranged closer to the hinge portion 4 side than the one end 22A of the tab member 22. has been done.
  • the tab member 22 may be oriented in a direction other than the direction shown in the example of FIG. 8A.
  • the tab member 22 may be arranged such that the other end 22B of the tab member 22 is further away from the hinge portion 4 than the one end 22A of the tab member 22.
  • the knob 21 is provided, so that the small lid 3 can be easily pulled up.
  • FIG. 13A is a plan view schematically showing an example of the lid 1 according to Modification 2 of the second embodiment.
  • FIG. 13B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line HH in FIG. 13A.
  • the structure of the holding structure forming part is not particularly limited.
  • the claw portion 24 and the receiving portion 25 form a holding structure forming portion.
  • the claw portion 24 may be any portion having a structure that can be latched to a receiving portion 25, which will be described later, by latching, inserting, or the like.
  • the claw portion 24 is provided on a tab member 22, which is an example of the knob portion 21.
  • the claw portion 24 is formed by a notch portion formed in a predetermined position of the tab member 22 in an outline shape such as a generally chevron shape.
  • the receiving portion 25 is formed in such a shape that the claw portion 24 can be engaged with or inserted into the receiving portion 25 .
  • the receiving portion 25 is a slit portion formed by cutting the base portion 2 at a predetermined position.
  • the receiving portion 25 corresponds to the penetrating portion 10.
  • the receiving portion 25 is formed at a position where it can face the claw portion 24 when the tab member 22 is displaced so as to rotate the small lid portion 3.
  • the holding structure forming part has a slit part (penetration part 10) formed as the receiving part 25, but as will be described later in Modification 3 of the second embodiment,
  • the structure corresponding to 25 is not limited to the slit portion.
  • FIG. 9A is a plan view schematically showing an example of a lid body according to Modification 1 of the second embodiment.
  • FIG. 9B is a cross-sectional view schematically illustrating the state of the vertical cross-section taken along the line FF in FIG. 9A.
  • the configuration of the extending portion 7 is the same as that of the second modification of the first embodiment, so a description thereof will be omitted.
  • FIG. 9A illustrates a case where the extending portion 7 is formed in the lid 1 according to the second modification of the second embodiment.
  • the formation position of the extension part 7 is such that the hinge part 4 is located between the front edge part 75 forming the tip of the small lid part 3 and the extension part 7.
  • an extending portion 7 is defined on the outer peripheral edge 2A of the base portion 2.
  • the position of the front end edge 75 of the small lid part 3 and the position of the extension part 7 can be made as far apart as possible.
  • the lid body 1 By making the position of the front end edge 75 of the small lid part 3 and the position of the extension part 7 as far apart as possible in this way, even if a person picks the extension part 7 by hand and carries the lid body 1, the lid body 1 It is possible to suppress the possibility that a person who picks up the small lid part 3 of the lid body 1 will touch the small lid part 3 of the lid body 1, and it is possible to suppress the contamination of the small lid part 3 due to contact with a person's hands.
  • the extending portion may also serve as the receiving portion described in the second modification of the second embodiment.
  • the claw portion 24 is formed on the knob portion 21 (tab member 22 in FIG. 13A and FIG. 9A), and the claw portion 24 and the extension portion 7 are formed in the same manner as the example in FIG. 13A.
  • a holding structure forming portion is formed.
  • the extending portion 7 is configured such that the outer peripheral edge 7A of the extending portion 7 can face the claw portion 24 when the tab member 22 is displaced to rotate the small lid portion 3. is formed.
  • the tab member 22 is pulled up in the direction of the arrow F1 in FIG. 9B when the small lid part 3 is raised up, as in the example of FIG. 13A.
  • the claw portion 24 is moved downward or upward. It has a prominent shape.
  • the tab member 22 is displaced so as to rotate the small lid part 3 until the claw part 24 reaches a position facing the outer peripheral edge 7A of the extension part 7 or a position near that position. Then, as shown in FIG.
  • FIG. 9C is a cross-sectional view for explaining one embodiment of the holding structure.
  • FIG. 10 is a plan view for explaining one embodiment of the extending portion 7. As shown in FIG. The extension distance D1 of the extension part 7 is the longest distance from the outer periphery 2A of the lid 1 to the outer periphery 7A of the extension part 7 along the direction away from the center CT of the lid 1 in the radial direction. shall be shown.
  • the extension The size of the portion 7 can be reduced, and the user is less likely to recognize the extension portion 7 as a knob for forming an ejection opening. That is, it is possible to prevent the user from lifting the extension part 7 and tearing off the lid 1 and using the tear hole created as an opening for taking out the contents.
  • the extension portion 7 can be slightly bent, and even if the tip of the claw portion 24 reaches the edge 103 of the container 101, the extension portion 7 and the claw portion 24 can be bent in the direction of releasing the lock. The tip of the claw portion 24 can be slid up to the extension portion 7. Then, it becomes easy to form the holding structure with the tip of the claw portion 24 located outside the edge 103 of the container 101. If such a holding structure is formed, even if the edge 103 of the container 101 becomes contaminated, the contamination will not spread to the claws 24 of the lid 1, thereby improving hygiene.
  • the present invention to a lid using a sheet material in which a resin layer is formed on the surface of one of the fiber sheets 31.
  • the lid body 1 is made of a blank material 30 and the extension part 7 is also made of the blank material 30, the surface of the extension part 7 may be made rougher than when a sheet material on which a resin layer is formed is used. This is more preferable because it makes it easier to bend the extending portion 7 and make it easier to cause the extending portion 7 to bend slightly.
  • FIG. 5A is a plan view showing an example of the lid body 1 according to the third embodiment.
  • FIG. 5B is a cross-sectional view schematically showing a vertical cross-section taken along line BB of the lid 1 shown in FIG. 5A.
  • the window portion 40 is a light transmitting portion that improves the visibility of the space portion 105 from the outside in the lidded container 150.
  • the window portion 40 has a structure in which an opening (in-lid opening 41) formed in the lid region corresponding portion 5B is covered with a window sheet 42 such as a light-transmissive film.
  • the window sheet 42 is not particularly limited as long as it has light transmittance, such as a light transmitting film, and examples thereof include films made of the following materials. Examples of the material of the film forming the window sheet 42 include synthetic resins and natural resins.
  • Examples of synthetic resins and natural resins include olefin resins such as polyethylene (PE) and polypropylene (PP), styrene resins such as polystyrene (PS), acrylic resins such as polyacrylate and polymethacrylate, and polyvinyl chloride ( PVC), vinyl resins such as polyvinyl acetate, polyamide resins, polyimide resins, polyester resins such as polyethylene terephthalate (PET), fluorine resins, polycarbonate resins (PC), polyether ether ketone (PEEK), etc.
  • Examples include polyether resins such as polyether sulfone (PES).
  • the material of the film forming the window sheet 42 is preferably biodegradable resin or the like from the viewpoint of reducing environmental load.
  • biodegradable resins include microbial-produced biodegradable resins such as polyhydroxyalkanoate (PHA) and PHA-based copolymers; starches mainly made from cellulose derivatives such as cellulose acetate and starch such as corn starch; Natural product-based biodegradable resins such as polylactic acid (PLA), polylactic acid/polycaprolactone copolymers, polylactic acid/polyether copolymers, etc., polybutylene succinate (PBS), polyester resins, etc.
  • PHA polyhydroxyalkanoate
  • PHA-based copolymers starches mainly made from cellulose derivatives such as cellulose acetate and starch such as corn starch
  • Natural product-based biodegradable resins such as polylactic acid (PLA), polylactic acid/polycaprolactone copolymers, polylactic acid/polyether copo
  • Succinate resins such as butylene succinate adipate (PBSA) and polyethylene terephthalate succinate (PETS); chemically synthesized biodegradable resins such as polycaprolactone and polyvinyl alcohol (PVA); Examples include butylene adipate/terephthalate and biodegradable polyolefins (product name: Biorecover, product name: Cra Drop, etc.).
  • the window sheet 42 has excellent water resistance, oil resistance, etc.
  • the window sheet 42 provided in the window portion 40 forms a portion (adhesive portion 46) that is adhered along a portion of the blank material 30 that corresponds to the periphery of the in-lid opening 41.
  • the method of adhering the window sheet 42 to a portion corresponding to the periphery of the in-lid opening 41 is not particularly limited.
  • hot melt is applied between the periphery of the opening 41 in the lid and the window sheet 42 to form a coated part, and the window sheet 42 is sealed around the opening 41 in the lid by heat-sealing in the coated part.
  • the adhesive portion 46 may be formed by adhering to a portion corresponding to the periphery. In the example of FIG.
  • the window portion 40 is provided for the lid 1 according to the first embodiment, but as illustrated in FIG. 11A, the window 40 is provided for the lid 1 according to the second embodiment and the 11B and 11C, it may be provided for the lid body 1 according to the fourth embodiment described later.
  • 11A and 11B are plan views showing other examples of the lid body 1 according to the third embodiment, and FIG. 11C is a sectional view schematically showing the state of the longitudinal section taken along line GG in FIG. 11B. It is.
  • a resin layer is formed on the surface of the fiber sheet 31 on at least one of the exposed surface 72 and the opposing surface 73. It is also possible to apply the present invention to a lid using a sheet material made of aluminum. However, when the lid body 1 is a blank material 30, when forming the adhesive part 46 between the window sheet 42 and the blank material 30, various resin materials are used as a material such as hot melt to form the adhesive part 46. This is more preferable in that good adhesion between the window sheet 42 and the blank material 30 can be expected.
  • a protruding portion may be formed as shown in FIGS. 6A, 6B, and the like. This embodiment will be referred to as the fourth embodiment.
  • the raised portion 43 is formed on the exposed surface 72 side of the lid body 1, and has a portion ( In the examples of FIGS. 6A and 6B, it is a portion that protrudes in the +Z direction with respect to the position of the bonding area corresponding portion 5A. It is preferable that the raised portion 43 is provided inward from the inner edge of the bonding region corresponding portion 5A. That is, the raised part 43 may be formed on the entire lid area corresponding part 5B, or may be provided on a part of the inside of the lid area corresponding part 5B.
  • a recessed portion 44 is formed in a portion of the lid body 1 that corresponds to the raised portion 43 on the side opposite to the exposed surface 72 (opposite surface 73 side) (opposite portion).
  • the portion forming the raised portion 43 becomes a convex structure in the embossed structure.
  • the window part 40 is formed in the area including the tip 43A of the raised part 43, which means that the interior of the container 101 is This is preferable from the viewpoint of making it easy to visually recognize the entire space (the depressed portion 44) including the space portion 105.
  • the outer peripheral edge 3A of the small lid part 3 and the hinge part 4 are formed along the base end of the raised part 43. It is preferable that the In this case, when the small lid part 3 is pulled up about the hinge part 4, the entire raised part 43 can be pulled up.
  • the lid 1 according to the fourth embodiment can be manufactured, for example, as follows. As explained in [1-2 Manufacturing method] in the first embodiment, the dipping step and the drying step are performed. However, during the drying process or before the drying process (but after the dipping process (that is, between the dipping process and the drying process), a shaping process is performed to shape the fiber sheet 31 containing the dipping liquid. Shaping process An example of this is an embossing process. In the shaping process, a structure corresponding to the raised part 43 is formed (a structure corresponding to the depressed part 44 is also formed). A shaping process and a drying process are performed. After that, the blank material 30 is formed by processing according to the shape of the lid body 1.
  • the drying process it is good that the water and non-aqueous solvent contained in the fiber sheet 31 containing the dipping liquid are almost completely evaporated, or it is possible that some water and non-aqueous solvent remain in the fiber sheet.
  • shaping treatment may be applied after the drying step. However, from the viewpoint of improving the appearance of the raised portions formed by the shaping process, the shaping process is preferably applied during or before the drying process.
  • the structure of the raised part 43 (and depressed part 44) shown in the fourth embodiment is that instead of the lid 1 having the blank material 30, the surface of the fiber sheet 31 on at least one of the exposed surface 72 and the opposing surface 73 is It is also possible to apply the present invention to a lid using a sheet material on which a resin layer is formed. However, if the lid 1 is a blank material 30, the method for manufacturing the lid 1 according to the fourth embodiment described above can be easily applied, and it is easier to obtain the raised portion 43 with a good appearance. preferable.
  • the lid 1 is joined to the container 101 to form a joint 151 in a state of a container 150 with a lid, which will be described later.
  • the joint 151 is a part where the container 101 and the lid 1 are bonded (including adhesive) to each other, and in order to separate the lid 1 and the container 101, the lid 1 and This means that the container 101 will be separated.
  • the lid 1 is not limited to this type, and the lid 1 may fit into the container 101 as described below.
  • the lid body 201 according to the fifth embodiment has a canopy part 202 and a side wall part 203, as illustrated in FIGS. 15A and 15B.
  • the lid body 201 according to the fifth embodiment has an opening 102 formed at the upper end and an edge 103 serving as the upper edge forming the outer periphery of the opening 102, as described later using FIG. 21 etc. It is formed so as to be able to come into contact with the container 101 that has it.
  • the lid 201 can be fitted into a container that has an opening 102 formed at the upper end and an edge 103 forming the outer periphery of the opening 102 and serving as the upper edge. is formed.
  • FIG. 15A is a perspective view schematically showing an example of the lid according to the fifth embodiment.
  • FIG. 15B is a cross-sectional view schematically showing an example of the lid according to the fifth embodiment. Note that FIG. 15B shows the state of a longitudinal section taken along the line NN in FIG. 15A.
  • FIG. 21 is a sectional view showing an example of a container with a lid 150 in which the lid 1 shown in FIGS. 15A and 15B is joined to the container 101.
  • the line NN is positioned to pass approximately directly above the insertion opening 219. This also applies to line JJ in FIG. 16A, line KK in FIG. 17A, and line LL in FIG. 18A.
  • the lid 201 preferably has a bent portion 204.
  • the bent part 204 is a part that connects the canopy part 202 and the side wall part 203, and in the examples of FIGS. 15A and 15B, the bent part 204 and the side wall part 203 are formed continuously (integrally). .
  • the canopy part 202 becomes a part that covers the opening 102 of the container 101 when the lid 201 is attached (equipped) to the container 101.
  • the shape of the canopy part 202 may be determined according to the shape of the container 101, and examples thereof include a circular shape, an elliptical shape, a triangular shape, a rectangular shape, a polygonal shape, and a chamfered shape.
  • the bent portion 204 is formed so as to surround the outer peripheral edge of the canopy portion 202 and forms a boundary between the canopy portion 202 and the side wall portion 203.
  • the bent portion 204 is formed such that the side wall portion 203 faces the side wall 104 and edge 103 of the container 101 when the lid 201 is attached to the container 101.
  • the bent portion 204 has a bent structure, but the bent portion 204 is not limited to having a bent structure, as will be described later.
  • the part forming the boundary between the canopy part 202 and the side wall part 203 includes cases where the part itself forms a boundary, cases where the boundary is defined inside or at the end of the part (the canopy part 202 and/or the side wall part 203). (a case where a part of the portion 203 also serves as the bent portion 204) is included.
  • the boundary between the canopy part 202 and the side wall part 203 is defined at the center of the bent part 204.
  • the bent portion 204 has a curved structure (for example, FIGS. 20A to 20B showing an example of modification 4 of the fourth embodiment described later)
  • the bent portion 204 is a portion specified in a curved range.
  • the boundary between the canopy part 202 and the side wall part 203 is defined approximately at the center of the bent part 204.
  • the side wall portion 203 is formed in an annular shape along the outer peripheral edge of the canopy portion 202 .
  • the lid body 201 has a canopy part 202, a bent part 204, a side wall part 203, and a canopy part 202 integrally formed by integrally molding a blank material 250 for forming the lid body 201. You can get it by doing this.
  • the blank material 250 may be formed in the same manner as the blank material 30 shown in the description of the first to fourth embodiments. That is, the blank material 250 is formed from a sheet material including a fiber sheet 260 containing fibers formed from a paper-based material and a resin material.
  • the sheet material has a structure in which a resin material is attached to at least some of the fibers forming the inside of the fiber sheet 260.
  • the resin material may be the same as the resin material described in the first to fourth embodiments.
  • the fiber sheet 260 may be similar to the fiber sheet 31 described in the first to fourth embodiments.
  • the lid body 201 has a contact portion 274 that comes into contact with the container 101 in a state where the lid body 201 is fitted onto the container 101.
  • the contact portion 274 is formed in a predetermined portion of the side wall portion 203 (first contact portion 274A). Furthermore, as shown in FIG. 15B, the contact portion 274 is preferably formed in a portion (second contact portion 274B) corresponding to a predetermined region of the canopy portion 202 on the opposing surface 273 side.
  • the contact portion 274 can suppress the possibility that the contents of the container 101 will leak to the outside.
  • the first contact portion 274A is preferably formed around the entire outer surface end of the edge 103 of the container, and is preferably formed in an annular shape.
  • the second contact portion 274B is preferably formed around the entire upper end of the edge 103 of the container, and is preferably formed in an annular shape.
  • the first contact portion 274A and the second contact portion 274B may be separated from each other or may be connected.
  • the contact portion 274 (including the first contact portion 274A and the second contact portion 274B) shown in the fifth embodiment is similar to that in the sixth embodiment, seventh embodiment, and eighth embodiment (described later). The same applies to the sixth embodiment to the eighth embodiment).
  • a penetrating portion 210 is formed at a predetermined position of the canopy portion 202.
  • An insertion opening 219 is formed as this penetration part 210.
  • the penetrating portion 210 is formed by the cut portion 208 .
  • the cut portion 208 is a cross cut.
  • the insertion opening 219 and the penetration part 210 may be formed in the same manner as the insertion opening 19 and the penetration part 10 described in the first embodiment.
  • the penetrating portion 210 is a portion that penetrates the canopy portion 202 from the exposed surface 272 to the opposing surface 273.
  • a cross section of the fiber sheet 260 is formed in a region forming the peripheral surface of the penetrating portion 210 (a region similar to the region of the peripheral surface 11 described in the first embodiment). exposed. Furthermore, at least a portion of the resin material is exposed on at least a portion of the cross section of the fiber sheet 260 exposed on the peripheral surface of the penetrating portion 210 .
  • the exposure of the cross section of the fiber sheet 260 and the exposure of the resin material shown in the fifth embodiment also apply to the sixth to eighth embodiments described later.
  • a blank material for forming a lid body having a curved part (a lid body having a side wall part, a curved part, and a canopy part) is made of a paper-based material
  • the shape of the blank material is the shape of the lid body (three-dimensional shape).
  • many fine wrinkles and folds occur near the bends and on the side walls.
  • a restoring force will act on the fibers that make up the lid body after shaping, and such fine wrinkles and folds will be removed when handling the lid body or when handling the lid body.
  • the lid body may return to its shape due to the influence of the force applied to the lid body when the lid body is attached to the container.
  • the lid body 201 according to the fifth embodiment it is possible to suppress the possibility that the blank material 250 will return to its shape after the shape deformation (shaping) when integrally molding the blank material 250.
  • Modification 1 of the fifth embodiment In the lid body 201 according to the fifth embodiment, the canopy part 202 and the side wall part 203 may be formed of separate members, as shown in FIGS. 18A, 18B, etc. Modification 1).
  • Modification 1 of the fifth embodiment includes a case where a part of the member forming the canopy part 202 forms a part of the side wall part 203, and a part of the member forming the side wall part 203 forms the canopy part. This includes the case where it forms part of the section 202.
  • 18A and 18B show an example in which a part of the member forming the canopy part 202 forms a part of the side wall part 203.
  • a canopy part forming member 222 having a first part 231 for forming the canopy part 202, and a side wall.
  • a side wall portion forming member 223 for forming the portion 203 is prepared.
  • a joining allowance 230 configured to be able to be joined to the side wall forming member 223 as a second portion 232 extends from the outer end (outer edge end) of the first portion 231 of the canopy forming member 222 .
  • the bent part 204 is formed by joining the canopy part forming member 222 and the side wall part forming member 223.
  • the lid body 201 is formed.
  • FIG. 19A FIG. material 252
  • the first blank material 251 for forming the canopy part forming member 222 a sheet material formed in a shape that matches the shape of the canopy part 202 with the joining allowance 230 may be used.
  • the second blank material 252 has a shape corresponding to the shape of the side wall portion 203.
  • the second blank material 252 is formed in a fan shape (partial fan shape).
  • a sheet material formed in The side wall portion forming member 223 that forms the side wall portion 203 can be obtained by joining the end edges 253, 253 at both ends of the second blank material 252.
  • At least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 may be formed in the same manner as the blank material 30 described above. . That is, at least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 has a fiber sheet 260 containing fibers formed from a paper-based material. The resin material is attached to at least some of the fibers forming the inside of the fiber sheet. In the examples of FIGS. 18A, 18B, 19A, and 19B, the first blank material and the second blank material have a fiber sheet 260 containing fibers made of a paper-based material.
  • the side wall portion 203 is formed to taper downward (in the -Z direction) (the inner diameter of the cross section becomes smaller (reduced diameter)). This is a preferable example, and the side wall portion 203 may be formed so that it becomes thicker toward the bottom (the inner diameter of the cross section becomes larger (increases in diameter)). Further, the side wall portion 203 may be formed so as not to taper toward the bottom (the cross-sectional inner diameter is constant); (modification 2 of the fifth embodiment). What is shown in the second modification of the fifth embodiment also applies to the sixth to eighth embodiments described later.
  • cross section indicates a cut surface of the side wall section that is observed when the side wall section is cut along a plane whose normal is the vertical direction.
  • the cross-sectional inner diameter indicates the diameter on the inner circumferential surface side when the cut surface (cross-section) is approximately annular.
  • the canopy part 202 of the lid body 201 according to the fifth embodiment may be configured as described in the second to fourth embodiments (Modification 3 of the fifth embodiment). Therefore, in the third modification of the fifth embodiment, the canopy part 202 may have a configuration corresponding to the opening forming part 20 (corresponding to the second embodiment), and a configuration corresponding to the window part 40 may exist. A configuration may be present (corresponding to the third embodiment), a configuration corresponding to the raised portion 43 may be present (corresponding to the fourth embodiment), and a combination of these configurations may be present simultaneously. You may. Moreover, it is not prohibited to provide the lid body 201 according to the fifth embodiment with a configuration corresponding to the modification shown in the first embodiment and the second embodiment. What is shown in the third modification of the fifth embodiment also applies to the sixth to eighth embodiments described below. In the lid body 201 according to the third modification of the fifth embodiment, the configuration of the insertion opening 219 may be omitted.
  • the bent portion 204 may be constituted by a projecting portion 226, as shown in FIGS. 20A to 20B. Furthermore, even if the convex portion 225 is formed at the end (outer end 228B) of the end portion (inner end 228A, outer end 228B) of the overhanging portion 226 that is closer to the side wall portion 203, or in the vicinity thereof. good.
  • a predetermined area on the outer peripheral end side of the canopy part 202 has a structure that protrudes diagonally upward (overhanging structure).
  • the protrusion direction of the protrusion 226 may be upward or lateral (direction in the plane of the canopy 202).
  • the inner surface 226A side of the projecting portion 226 is a recessed portion (recessed portion 227).
  • the shape of the recessed portion 227 corresponds to the shape of the overhanging portion 26. This can be realized depending on the shape of the mold used when forming the lid body 201 from the blank material 250.
  • the size of the recessed portion 227 is preferably large enough to fit the edge 103 of the container 101. If the recessed portion 227 has such a size, when the lid 201 is used as the lidded container 150, the edge 103 will generally fit into the recessed portion 227, and the outer end portion of the edge 103 ( In the example of FIG. 20, it is possible to bring the outer circumferential surface part 111 of the edge 103 into surface contact with the recessed part 227, making it easy to securely attach the lid 201 to the edge 103 of the container 101. Become.
  • a convex portion 225 may be formed on the side wall portion 203.
  • the convex portion 225 is defined, for example, as a portion that protrudes inward (center CT direction, direction from the outer circumferential surface 203B to the inner circumferential surface 203A of the side wall portion 203) at a predetermined position of the side wall portion 203. It is preferable that the convex portion 225 is a convex strip portion formed in a strip shape so as to go around the inner circumferential surface of the side wall portion 203 .
  • a convex structure of a convex portion 225 may be formed on the inner circumferential surface side of the side wall portion 203, and a recess portion 224 may be formed on the outer circumferential surface 203B side of the side wall portion 203 at a position corresponding to the position where the convex structure is formed.
  • the lid 201 according to the sixth embodiment is similar to the fifth embodiment in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container. It is.
  • the lid body 201A according to the sixth embodiment has a configuration in which a part of the side wall portion 203 extends above and below the canopy portion 202.
  • the side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206.
  • the lower wall 206 is a portion extending downward from the canopy portion 202, and the upper wall 205 is comprised of a portion of the side wall portion 203 excluding the lower wall 206.
  • the side wall portion 203 is formed to taper downward. Furthermore, in the examples shown in FIGS. 16A and 16B, the penetrating portion 210 is formed at a predetermined position of the canopy portion 202, but this is only an example.
  • the canopy part 202 and the side wall part 203 are formed of separate members.
  • the lid body 201 has a canopy forming member 222 and a side wall forming member 223 as the above-mentioned separate members, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that
  • the canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222).
  • the second portion 232) of the portion forming member 222 is the joining allowance 230 shown in the first modification of the fifth embodiment.
  • the second portion 232 of the canopy forming member 222 is a portion (rising portion) that rises diagonally upward or directly upward from the outer peripheral end of the first portion 231 in the state of the lid body 201. In this state, the second portion 232 becomes a part of the side wall portion 203 in a state where the second portion 232 is joined to the side wall portion forming member 223.
  • the side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion).
  • the upper part forming part has a part (first contact wall part 233) that contacts at least the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.
  • the upper wall 205 (upper forming part) is in contact with the first contact wall part 233 and the joining margin 230 that becomes the second part 232 of the canopy part forming member 222 on the inner side. (second contact wall part 234), and a continuous part 235 that connects the first contact wall part 233 and the second contact wall part 234, and the continuous part 235 is the second part of the canopy part forming member 222. It covers the upper end surface of the joining margin 230.
  • the lower end of the second contact wall portion 234 is located on the upper surface side of the first portion 231 of the canopy portion forming member 222, and is slightly spaced apart from the first portion 231 in the examples of FIGS. 16A and 16B. .
  • the lower wall 206 (lower forming portion) is a portion that extends downward (diagonally downward in FIGS. 16A and 16B) with the lower end of the first contact wall portion 233 as the base end. It has become.
  • the lower wall 206 (lower forming part) is preferably located below the lower surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position, for example.
  • the lid body 201 according to the sixth embodiment can be formed by processing a blank material.
  • the blank materials include blank materials for forming the canopy forming member 222 and the side wall forming member 223 (as described above in Modification 1 of the fifth embodiment, the first blank material and the second blank material, respectively). ) can be used. At least one blank material selected from the group consisting of the first blank material and the second blank material is formed in the same manner as the blank material 30 described above in Modification 1 of the fifth embodiment. good.
  • the first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in Modification 1 of the fifth embodiment, and may have a shape similar to that of the canopy part 202. Further, a sheet material formed in a shape including the joining allowance 230 may be used.
  • the canopy part forming member 222 can form a first part 231 corresponding to the canopy part 202 and a rising part (second part 232 serving as a joining margin) by bending and forming a first blank material.
  • the second portion 232 is preferably formed by bending the first blank material upward at the peripheral edge position of the first portion 231 (base end of the joining allowance 230).
  • the second blank material may be similar to the second blank material 252 described above in Modification 1 of the fifth embodiment, and may be a fan-shaped sheet material.
  • the upper end portion of the annular body is folded inward at a position corresponding to the continuous portion 235, so that the first contact wall portion 233 and
  • an upper forming portion (a structural portion corresponding to the upper wall 205) can be formed, and a lower forming portion (a structural portion corresponding to the lower wall 206) is further formed. can do.
  • the side wall forming member 223 is formed.
  • first contact wall portion 233 and the second contact wall portion 234 are bonded to the bonding margin 230.
  • first contact wall portion 233, the second contact wall portion 234, and the continuous portion 235 are bonded to the bonding margin 230 to form a bonded portion.
  • the lid body 201 it is preferable to use the above-mentioned annular body formed from the second blank material.
  • the lower end of the joint allowance 230 (second portion 232) of the canopy forming member 222 is located at the boundary position between the lower forming part and the upper forming part (the boundary position between the upper wall 2505 and the lower wall 206) on the inner peripheral surface of the annular body. ), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the upper end portion of the annular body inward at a position corresponding to the continuous portion 235 in the annular body, the joining margin 230 is covered from the upper end side.
  • the joining margin 230 is joined to the annular body that will become the side wall part forming member 223 so as to be sandwiched between the first contact wall part 233 and the second contact wall part 234.
  • the side wall forming member 223 is formed and the lid 201 is obtained.
  • the canopy forming member 222 and the side wall forming member 223 are made from blank materials (first blank material, second blank material). After the shape deformation (shaping) when manufacturing the lid body 201 to obtain the lid body 201, it is possible to suppress the possibility that the shape will return to its original shape.
  • the lid 201 according to the seventh embodiment is similar to the fifth embodiment in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container. It is.
  • the lid body 201 according to the seventh embodiment has a configuration in which a part of the side wall portion 203 extends above and below the canopy portion 202 .
  • the side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206.
  • the lower wall 206 is a portion extending downward from the canopy portion 202, and the upper wall 205 is comprised of a portion of the side wall portion 203 excluding the lower wall 206.
  • the side wall portion 203 is formed to taper downward. Further, in the examples shown in FIGS. 17A and 17B, a through portion 210 is formed at a predetermined position of the canopy portion 202, but this is only an example.
  • the canopy part 202 and the side wall part 203 are formed of separate members.
  • the lid body 201 has a canopy forming member 222 and a side wall forming member 223 as the above-mentioned separate members, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that
  • the canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222).
  • the second portion 232) of the portion forming member 222 is the joining allowance 230 shown in the first modification of the fifth embodiment.
  • the second portion of the canopy forming member 222 is a portion (hanging portion) extending diagonally downward or directly downward from the outer peripheral end of the first portion 231, and the side wall forming member 222
  • the second portion 232 becomes a part of the side wall portion 203 in a state where the second portion 232 is joined to the second portion 232 .
  • the side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion).
  • the lower part forming part has a part (lower first contact wall part 237) that is in contact at least on the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.
  • the lower part forming part is a part (lower first contact wall part 237) that contacts the joint allowance 230, which becomes the second part 232 of the canopy part forming member 222, on the inner surface side. 2 contact wall portions 238 ), and a lower end side continuous portion 239 that further connects the lower first contact wall portion 237 and the lower second contact wall portion 238 . It covers the lower end surface of the joining margin 230 which becomes the portion 232 of No. 2.
  • the upper end of the lower second contact wall portion 238 is located on the lower surface (opposing surface 273) side of the first portion 231 of the canopy portion forming member 222, and in the example of FIGS.
  • the upper end of the first portion 231 Preferably, it is spaced apart from. It is preferable that the edge 103 of the container 101 (for example, a part of the outer peripheral surface of the curled part) can fit between the first part and the upper end of the lower second contact wall part 238.
  • the upper wall 205 (upper forming part) is a part that extends upward (diagonally upward in FIG. 17B) with the upper end of the lower first contact wall 237 as the base end. ing.
  • the upper wall 205 (upper forming part) is preferably located above the upper surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position.
  • the upper forming part has a curled part (side wall upper end curled part 236) formed on its upper end side.
  • the end face of the blank material (the second blank material for forming the side wall part forming member 223) from being exposed at the upper end of the upper forming part, and the user can Even when the user ingests the contents in the container 101 by placing his or her mouth on the end surface of the blank material, it is possible to suppress the discomfort caused by the user's mouth touching the end surface of the blank material. Further, by forming the side wall upper end curl portion 236, liquid is less likely to come into contact with the portion of the side wall portion 203 that corresponds to the end surface of the blank material.
  • the lid body 201 according to the seventh embodiment can be formed by processing a blank material.
  • the blank materials include blank materials for forming the canopy forming member 222 and the side wall forming member 223 (as described above in Modification 1 of the fifth embodiment, the first blank material and the second blank material, respectively). ) can be used. At least one blank material selected from the group consisting of the first blank material and the second blank material is formed in the same manner as the blank material 30 described above in Modification 1 of the fifth embodiment. good.
  • the first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in Modification 1 of the fifth embodiment, and the shape of the canopy part 202 may be A sheet material formed in a shape that further includes a joining allowance 230 may be used. It is preferable that the canopy part forming member 222 forms a first part 231 corresponding to the canopy part 202 and a second part 232 which becomes the joining margin 230 by bending and forming a first blank material. That is, the second portion 232 is preferably formed by bending the first blank material downward at the peripheral edge of the first portion 231 .
  • the second blank material may be similar to the second blank material 252 described above in Modification 1 of the fifth embodiment, and may be a fan-shaped sheet material.
  • the lower end portion of the annular body is folded inward at a position corresponding to the lower end side continuous portion 239, thereby forming a lower first contact wall. 237, the lower second contact wall portion 238, and the lower end side continuous portion 239, a lower forming portion (lower wall 206) can be formed, and further an upper forming portion (upper wall 205) can be formed.
  • the side wall forming member 223 is formed.
  • the lid body 201 it is preferable to use the above-mentioned annular body formed from the second blank material.
  • the upper end of the joint allowance 230 (second portion 232) of the canopy forming member 222 is located at the boundary position between the lower forming part and the upper forming part (the boundary position between the upper wall 205 and the lower wall 206) on the inner peripheral surface of the annular body. ), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the lower end portion of the annular body inward at a position corresponding to the lower end side continuous portion 239 of the annular body, the joint allowance 230 is covered from the lower end side.
  • the joining margin 230 is joined (adhered) to the lower forming part (the annular body forming the side wall forming member 223) so as to be sandwiched between the lower first contact wall part 237 and the lower second contact wall part 238.
  • the side wall forming member 223 is formed and the lid 201 is obtained.
  • the canopy forming member 222 and the side wall forming member 223 are made from blank materials (first blank material, second blank material). After the shape deformation (shaping) when manufacturing the lid body 201 to obtain the lid body 201, it is possible to suppress the possibility that the shape will return to its original shape.
  • FIG. 14A shows a structure in which the lid 1 according to the first embodiment is joined to the edge 103 forming the outer periphery of the opening 102 of the container 101 having the opening 102 formed at the upper end.
  • FIG. 1 is a perspective view showing an example in which the edge portion 103 and the opposing surface are in contact with each other (the edge portion 103 is in contact with a portion of the opposing surface).
  • FIG. 14B is a cross-sectional view schematically showing the state of the vertical cross-section taken along line II in FIG. 14A. The description of the lidded container 150 will be continued using FIGS. 14A and 14B.
  • the container with a lid 150 has a joint 151 where the container 101 and the lid 1 are joined, and the region of the lid 1 that forms the joint 151 is the joint region R.
  • the method of joining the lid 1 and the container 101 is not particularly limited, and a joining method such as a pressure bonding method or a heat sealing method can be used as appropriate. Below, the case where the lid 1 according to the first embodiment is used in a container with a lid 150 will be described as an example.
  • the container 101 has a cylindrical side wall 104 whose diameter increases upward (tapering downward) and a bottom 107, and has a space inside.
  • the container body 110 has a container body 110 forming a section 105, and an opening 102 that is opened at the upper end of the container body 110 (the upper end of the side wall 104).
  • the opening 102 of the container 101 is formed in a circular shape.
  • the container 101 shown here is an example, and the configuration of the container 101 is not limited.
  • the opening 102 of the container 101 may be formed into a rectangular shape.
  • the container 101 may be of any type as long as the opening 102 can be covered with the lid 1.
  • what is stored inside the container 101 is not particularly limited, and may be, for example, a liquid, a solid, or a combination thereof.
  • the edge 103 forming the opening 102 (surrounding the opening 102) has a flange.
  • the flange portion formed on the edge 103 may be a curled portion 108 formed by winding the member forming the container body 110 outward, as shown in FIGS. 14A, 14B, etc. It may be formed as a portion (flange portion) extending upward.
  • the lid 1 according to the first embodiment may be combined with a container 101 having an opening 102.
  • the lid 1 according to the fifth embodiment can be used, for example, in a container with a lid 350, as shown in FIG. 21.
  • FIG. 21 shows that the lid 1 according to the fifth embodiment is fitted to the edge 103 forming the outer periphery of the opening 102 of the container 101 having the opening 102 formed at the upper end.
  • FIG. 3 is a cross-sectional view showing an example in which the body 1 is brought into contact with the body 1 (the edge 103 and the canopy part 202 are brought into contact).
  • the container with a lid 350 can be obtained by fitting the lid 201 to the edge 103 of the container 101 so as to cover the opening 102.
  • the lid 1 according to the fifth embodiment may be combined with a container 101 having an opening 102.
  • the lid 1, 201, etc. according to the present invention can be applied to many types of lids 1, 201, etc. as described above. Further, it is also possible to apply the present invention to lid bodies 1, 201, etc. in other aspects than those described above.
  • the lid according to the present invention has been described in detail above, the lid according to the present invention is merely exemplified and is not limited thereto. Therefore, changes may be made as appropriate without departing from the spirit of the invention.
  • the structure of the above-described cover body may be applied by using the structure of the cover body of each example independently, or by appropriately combining the structure of the cover body of each example.
  • the present invention may adopt the configurations shown in [E1] to [E22] below.
  • [E2] A bonding area corresponding portion corresponding to a region to be bonded to the container along the edge of the container, and a lid area corresponding portion comprising a portion inside from the bonding area corresponding portion,
  • the blank material has a penetration part cut from one side to the other side, and a cross section of the fiber sheet is exposed on the peripheral surface of the penetration part, and at least one part of the cross section is exposed.
  • the lid body according to [E1] or [E2] above, wherein the resin material is exposed in the portion.
  • the lid region corresponding portion includes a base portion having a small opening having a smaller opening area than the opening surrounded by the edge of the container, and a small lid portion that opens and closes the small opening.
  • the small lid portion is configured to be rotatable with respect to the base portion around the hinge portion; Any one of "the above [E3] to [E8]" subordinate to the above [E2], wherein the part is formed at the boundary between the outer peripheral edge of the small lid part and the opening edge of the small opening.
  • the lid body described in. [E10] The lid according to [E9] above, wherein a knob is provided on the upper surface side of the small lid.
  • the knob has a tab member, and the tab member is joined to the upper surface side of the small lid.
  • [E12] The above-mentioned [E12] having a holding structure that holds the small lid in a state where the small opening is opened by rotating the small lid with respect to the base about the hinge. E9] to [E11].
  • An extending portion is formed on the outer peripheral edge of the base portion, and the base portion and the extending portion are integrally formed from the blank material, [E9] to [E12] above.
  • the lid described in any one of the above.
  • [E14] The lid body according to [E13] above, wherein the hinge portion is formed between the extending portion and the tip of the small lid portion.
  • the small lid has a holding structure that holds the small lid in a state where the small opening is opened by rotating the small lid with respect to the base about the hinge, the small lid A knob is provided on the upper surface side, a claw is provided on the knob, and an extension is formed on the outer peripheral edge of the base, and the extension and the receiving part are connected to the holding structure.
  • [E17] The lid according to any one of [E1] to [E16] above, in which a window is formed.
  • [E18] The lid according to any one of [E1] to [E17] above, wherein at least some of the resin material is impregnated between at least some of the fibers.
  • [E19] The lid according to any one of [E1] to [E18] above, which is formed so that it can be joined and/or fitted to a container having an edge.
  • [E20] A container with a lid, comprising the lid according to any one of [E1] to [E19] above, and the container having the edge, and the lid is joined to the container. .
  • [E21] A combination of a lid and a container, comprising the lid according to any one of [E1] to [E19] above, and the container having the edge.
  • a method for manufacturing a lid body including a dipping step of immersing a fiber sheet in a dipping liquid containing a resin material, and a drying step of drying the fiber sheet containing the dipping liquid.
  • a shaping process is performed to shape the fiber sheet containing the immersion liquid during or before the drying process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne : un élément de recouvrement qui est apte à supprimer une pénétration d'humidité dans des fibres qui constituent l'élément de recouvrement, tout en permettant de lier un contenant et l'élément de recouvrement l'un à l'autre par un procédé de scellement même si le type d'une résine qui constitue une couche de revêtement de résine formée sur la surface du contenant est varié ; un contenant avec un élément de recouvrement ; une combinaison d'un élément de recouvrement et d'un contenant ; et un procédé de production d'un élément de recouvrement.　Un élément de recouvrement selon la présente invention est formé d'un matériau d'ébauche de façon à pouvoir être mis en contact avec un contenant qui a une partie de bord ; le matériau d'ébauche comprend une feuille de fibres qui contient des fibres qui sont formées à partir d'un matériau de papier ; et un matériau de résine adhère à au moins certaines des fibres qui forment la partie interne de la feuille de fibres.
PCT/JP2023/019455 2022-05-26 2023-05-25 Élément de recouvrement, contenant avec un élément de recouvrement, combinaison d'un élément de recouvrement et d'un contenant, et procédé de production d'un élément de recouvrement WO2023228998A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202380009763.XA CN117460679A (zh) 2022-05-26 2023-05-25 盖体、带盖体容器、盖体与容器的组合及盖体的制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-086457 2022-05-26
JP2022086457 2022-05-26

Publications (1)

Publication Number Publication Date
WO2023228998A1 true WO2023228998A1 (fr) 2023-11-30

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PCT/JP2023/019455 WO2023228998A1 (fr) 2022-05-26 2023-05-25 Élément de recouvrement, contenant avec un élément de recouvrement, combinaison d'un élément de recouvrement et d'un contenant, et procédé de production d'un élément de recouvrement

Country Status (3)

Country Link
CN (1) CN117460679A (fr)
TW (1) TWM650974U (fr)
WO (1) WO2023228998A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163641A (en) * 1981-03-31 1982-10-07 Toyo Seikan Kaisha Ltd Vessel cover, which is made of plastic and easily unsealed
JPS608035U (ja) * 1983-06-27 1985-01-21 大日本印刷株式会社 包装材料
JP2001315835A (ja) * 2000-02-29 2001-11-13 Toppan Printing Co Ltd 有底容器の蓋体
JP2005029917A (ja) * 2003-07-10 2005-02-03 Sanaaru:Kk 積層成形体の製造方法
JP2006069654A (ja) * 2004-09-06 2006-03-16 Toppan Printing Co Ltd 開封状態保持機能付き蓋材
JP2009057077A (ja) * 2007-08-31 2009-03-19 Toppan Printing Co Ltd 容器蓋材
JP2011084329A (ja) * 2009-10-19 2011-04-28 Toppan Printing Co Ltd シール蓋及びこれを用いたパッケージ
JP2017128100A (ja) * 2016-01-22 2017-07-27 大日本印刷株式会社 蓋材用積層体、蓋材、分配包装容器、分配包装体、及び蓋材用積層体の製造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163641A (en) * 1981-03-31 1982-10-07 Toyo Seikan Kaisha Ltd Vessel cover, which is made of plastic and easily unsealed
JPS608035U (ja) * 1983-06-27 1985-01-21 大日本印刷株式会社 包装材料
JP2001315835A (ja) * 2000-02-29 2001-11-13 Toppan Printing Co Ltd 有底容器の蓋体
JP2005029917A (ja) * 2003-07-10 2005-02-03 Sanaaru:Kk 積層成形体の製造方法
JP2006069654A (ja) * 2004-09-06 2006-03-16 Toppan Printing Co Ltd 開封状態保持機能付き蓋材
JP2009057077A (ja) * 2007-08-31 2009-03-19 Toppan Printing Co Ltd 容器蓋材
JP2011084329A (ja) * 2009-10-19 2011-04-28 Toppan Printing Co Ltd シール蓋及びこれを用いたパッケージ
JP2017128100A (ja) * 2016-01-22 2017-07-27 大日本印刷株式会社 蓋材用積層体、蓋材、分配包装容器、分配包装体、及び蓋材用積層体の製造方法

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CN117460679A (zh) 2024-01-26

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