WO2007110897A1 - Paper-made lid for paper-made container - Google Patents

Paper-made lid for paper-made container Download PDF

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Publication number
WO2007110897A1
WO2007110897A1 PCT/JP2006/305938 JP2006305938W WO2007110897A1 WO 2007110897 A1 WO2007110897 A1 WO 2007110897A1 JP 2006305938 W JP2006305938 W JP 2006305938W WO 2007110897 A1 WO2007110897 A1 WO 2007110897A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
lid
wall surface
paper container
canopy
Prior art date
Application number
PCT/JP2006/305938
Other languages
French (fr)
Japanese (ja)
Inventor
Ryoji Hidaka
Original Assignee
Pic Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pic Co., Ltd. filed Critical Pic Co., Ltd.
Priority to PCT/JP2006/305938 priority Critical patent/WO2007110897A1/en
Publication of WO2007110897A1 publication Critical patent/WO2007110897A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D3/00Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/10Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by form of integral or permanently secured end closure
    • B65D3/12Flanged discs permanently secured, e.g. by adhesives or by heat-sealing
    • B65D3/14Discs fitting within container end and secured by bending, rolling, or folding operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0214Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/022Removable lids or covers without integral tamper element secured only by friction or gravity only on the inside, or a part turned to the inside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00231Overall construction of the lid made of several pieces
    • B65D2543/0024Overall construction of the lid made of several pieces two pieces, one forming at least the whole skirt, the other forming at least the whole upper part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00268Paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509Cup
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00518Skirt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824Means for facilitating removing of the closure
    • B65D2543/00833Integral tabs, tongues, handles or similar
    • B65D2543/00842Integral tabs, tongues, handles or similar outside of the lid

Definitions

  • the present invention relates to a paper lid for a paper container. More specifically, the present invention relates to a paper container such as a paper cup that has a conical body portion that is expanded upward, a curl portion that is formed by being swung outwardly at the upper edge portion of the main body portion, and a force. It relates to a cover made of paper.
  • Paper containers such as the paper cups described above are widely used in various applications. For example, it is used for drinking water, coffee, tea, soft drinks such as colas, cups for serving snacks, containers for dissolving soup powder, and even larger paper containers. It is used to serve shaved ice and in some cases alcoholic drinks.
  • a force that may be used while the contents are put in the container is covered.
  • a cover is placed on the upper surface of the container. It is widely done.
  • a plastic lid has heretofore been put into practical use exclusively. If the lid is made of plastic, it will cause environmental problems, so even if the container body such as a cup is made of paper, the plastic lid cannot be discarded with the container. . When disposing of the container after use, it is necessary to separate the paper container body and the plastic lid separately and dispose of them in order to eliminate environmental problems, which is very troublesome and cumbersome.
  • Patent Document 1 Utility Model Registration No. 3101102
  • a ring flange at the upper end of a cup and a circular top plate portion are in close contact with each other, and a flange having an inner diameter of a side hanging portion that hangs around the top plate portion.
  • a paper lid has been proposed which has the same diameter as the outer diameter of the die and can be fitted in close contact with the flange.
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2002-212617 discloses a cup-shaped container having an outward curled portion at an opening edge, a lid member thermally bonded to the opening edge of the cup-shaped container, A container comprising a fitting lid attached to an opening edge of the cup-shaped container to which a lid member is thermally bonded, wherein the fitting lid comprises a top plate and a cylindrical side plate; A cup-shaped container with a fitting lid is disclosed, which is characterized in that a cut line for forming an outlet is formed.
  • the lid member of Patent Document 1 is intended to tightly engage a lid having a side hanging portion for hanging the lid around the ring-shaped flange on the upper end of the cup.
  • the lid having such a shape is made of paper. In fact, it is not easy to make, and the ring-shaped flange at the top of the cup and the lid do not adhere well, and the lid functions when the lid is only touched by the top flange and the disc of the lid. If the container such as a cup turns sideways while moving, the liquid inside will leak.
  • a circular blank plate having a paperboard force in which a plurality of creases facing the center are formed on the peripheral portion, and a peripheral portion on which the presser foot is formed is a fold.
  • the example described in the examples is composed of a configuration in which a circular top plate and a cylindrical side plate are formed by narrowing down along the side plate, and the inner side plate is formed by folding back the tip of the side plate inwardly. Speak.
  • the upper edge of the cup and the lid cannot be tightly fitted, and it is not easy to prevent liquid leakage, and manufacturing requires special machines. Cost is high.
  • Patent Document 3 Utility Model Registration No. 3080882 discloses a paper cup lid having a ring-shaped edge at its upper end
  • the lid includes a ring-shaped outer wall portion that fits into an inner peripheral portion of the upper end portion of the paper cup, and includes an inner piece and a lower bottom portion force of the inner piece, and a circular bottom piece bent inward in the radial direction.
  • a ring-shaped flange that is continuous with the top of the ring-shaped outer wall of the concave plate, is bent outward, and faces the ring-shaped edge of the paper cup;
  • the ring-shaped outer piece comprises a ring-shaped outer piece that is bent downward continuously to the outer diameter portion of the ring-shaped flange portion and surrounds the outer periphery of the ring-shaped edge portion of the paper cup.
  • a paper cup characterized in that a plurality of locking projections projecting radially inward are provided radially at a predetermined pitch in the circumferential direction, and each of the portions is formed integrally with a sheet of paper.
  • a paper lid is disclosed.
  • Patent Document 3 The paper lid described in Patent Document 3 is formed by molding paper into a complicated shape, requires a special paper lid manufacturing apparatus, and the cost of manufacturing the paper lid Is extremely high.
  • Patent Documents 1 to 3 As described above, it has been proposed to use a paper lid as disclosed in Patent Documents 1 to 3, but none of them is easy to manufacture, and the manufacturing accuracy is particularly high. No. 2 did not sufficiently function as a lid with good manufacturing accuracy, and the patent document 3 was very troublesome and expensive to manufacture even though the accuracy was high.
  • the present invention provides a paper lid for a paper container that solves environmental problems and is easy to manufacture and can be manufactured at a very low cost.
  • the purpose is to provide.
  • Patent Document 1 Utility Model Registration No. 3101102
  • Patent Document 2 Japanese Patent Laid-Open No. 2002-211617
  • Patent Document 3 Utility Model Registration No. 3080882
  • a lid for covering a paper container having a curled portion formed by being wound outwardly on an upper edge portion of a conical main body portion that is expanded upward.
  • the main body is made of paper, and is inserted outwardly into the wall surface portion having a conical outer surface that engages with the inner surface of the conical body portion of the paper container and the upper edge portion of the wall surface portion.
  • the lid curl portion is formed, and the canopy portion provided inside the wall surface portion.
  • the wall surface portion is a conical shape formed from a fan-shaped blank, and the canopy portion is formed from a circular blank.
  • the bottom portion of a paper cup that has never been conceived in the past is used as a paper lid. It is what you want to use.
  • a part of a paper cup that has been conventionally used is used as it is, and the force is also engaged with the tapered portion formed in the main body when the paper cup is formed.
  • the paper lid By forming the paper lid so as to have such a taper portion, the paper lid can be easily manufactured in a process very similar to the conventional paper cup manufacturing process, and both tapers are tapered.
  • a paper lid is provided that fits very well and does not leak.
  • the diameter of the curled portion of the paper lid is set to be approximately the same as the diameter of the curled portion of the paper cup.
  • a lid for covering a paper container having a curled portion formed by being outwardly inserted into an upper edge portion of a conical main body portion that is expanded upward The lid is mainly made of paper, and is inserted outwardly into a wall surface portion having a conical outer surface that engages with an inner surface of the conical main body portion of the paper container, and an upper edge portion of the wall surface portion.
  • a lid curl portion formed on the wall surface portion and a canopy portion provided inside the wall surface portion, and the wall surface portion is subjected to a stapling process for tightly engaging the wall surface portion with the main body portion of the paper container.
  • the canopy portion is fixed so as to be positioned higher than the lower edge portion, and may be a paper lid for a paper container.
  • This stopper treatment may be performed by laminating, coating, or printing a resin product having a high frictional resistance, such as polyurethane, on the wall surface as a non-slip process! You may form embosses in a line along the circumference of the part! / ⁇ . In this case, embossing may be performed only on the paper lid, or both the paper lid and the wall surface of the container body may be embossed.
  • a resin product having a high frictional resistance such as polyurethane
  • a lid for covering a paper container having a curled portion formed by being wound outwardly on an upper edge portion of a conical main body portion that is expanded upward.
  • the lid is mainly made of paper and is formed by being inserted outwardly into a wall surface portion having a conical outer surface that engages with the inner surface of the conical body portion of the paper container, and an upper edge portion of the wall surface portion.
  • a lid curl portion and a canopy portion provided inside the wall surface portion, the canopy portion being fixed so as to be positioned above the lower edge portion, and a central portion of the canopy portion facing upward
  • the container can be stored by covering the lid. You may prevent that a delivery space decreases. By doing so, even when the paper lid is put on, the internal volume of the container is not reduced, and a sufficient amount of liquid can be stored.
  • the canopy portion of the present invention is formed on the lower side, that is, on the surface of the container that faces the contents of the container when it is put on the container. It is preferable that it is applied.
  • the resin film is formed by, for example, laminating a polyethylene film, coating or printing. By doing so, the lid can be prevented from being damaged even if the liquid hits the lower side of the canopy.
  • a hole for inserting a straw may be formed in the canopy portion of the lid member, or a cut line for forming a hole may be provided.
  • the present invention intends to use the bottom portion of a paper cup, which has never been conceived in the past, as a paper lid.
  • the main body of the lid can be made of paper like the paper container, and can be discarded without being separated from the paper container at the time of disposal, so that environmental problems do not occur.
  • a paper lid can be manufactured by the same process as that for manufacturing a conventional paper container. Therefore, a new special facility is not required for manufacturing the paper lid, and the paper lid can be manufactured as it is with a slight modification of the conventional paper container manufacturing apparatus, and the manufacturing cost can be extremely low.
  • the taper is similar to the taper of the main body of the paper container. It is possible to make a paper lid with an inclined wall, and the angle of both tapered parts is the same angle, so it is easy to fit. Can be covered.
  • the paper lid of Patent Document 1 or 2 described above covers the outside of the lid, whereas the paper lid of the present invention covers the inside of the lid. Paper lid to become When the paper container is put on the paper container, the paper container and the paper lid are integrated into a so-called monocoque structure, which is extremely strong, and the container is moved by hand. However, the container can be moved with peace of mind without the container being deformed.
  • the lid is made of paper, it is possible to print advertisements or the like on the canopy portion that is easy to print.
  • FIG. 1 is a diagram schematically showing a process for manufacturing a paper lid according to the present invention.
  • the base plate 13 having a disc shape is punched out by pushing the pressing die 11 into the die 12 while feeding the base paper 10 for the canopy part between the pressing dies.
  • the inner die 14 in the press die is protruded and narrowed to the die 12 side, and the canopy portion 1 in which the edge 15a is recessed 1
  • Form 5 When the canopy portion 15 is formed by drawing, the canopy portion 15 is vacuum-sucked to the bottom of the container-like conical mold 20 (see FIG. 1 (a)).
  • the canopy base paper 10 a base paper that has been conventionally used in paper containers can be used.
  • the base paper can be about 150 to 300 G / m 2 in virgin pulp specifications.
  • the base paper for the wall part 30 can be a base paper conventionally used for paper containers. For example, it is about 150 to 300 GZm 2 in the virgin pulp specification. be able to.
  • the lower end 33b of the wall surface portion 33 (the connected fan-shaped blank 31) is heated and then folded inward so as to wrap the squeezed edge portion 15a of the canopy portion 15 and bond them together (see FIG. 1 (c)).
  • the lower end 33b of the wall surface portion 33 may not be folded inward, and the outside of the narrowed edge portion 15a of the canopy portion 15 may be brought into contact with the inner side of the lower end 33b to bond them together (see FIG. 6).
  • the upper edge portion of the wall surface portion 33 opposite to the canopy portion 15 is wound outward while the tool 41 is rotated, and is further pushed by the die 42 to round the upper end to form a lid curl portion 33c (FIG. 1 (d) reference)
  • the paper lid 16 according to the present invention having the canopy 15 at one end is manufactured (see FIG. 2).
  • the lid is made of paper, an advertisement can be printed on the canopy portion 15 which is easy to print.
  • the canopy portion 15 provided inside the wall surface portion 33 is fixed so as to be positioned higher than the lower edge portion of the wall surface portion 33.
  • This manufacturing process is very similar to that of conventional paper cups.
  • the manufacture of the paper container according to the present invention it is possible to use a raw paperboard obtained by laminating polyethylene or the like at both ends in the circumferential direction of the fan-shaped blank 31 forming the wall surface portion 15. This is preferable for good adhesion of the wall and the wall 33 and the canopy 15.
  • the laminating process can be the same as that used in conventional paper containers. For example, polyethylene of 18 to 20 microns is laminated.
  • the surface of the paperboard used as the canopy portion 15 it is preferable to laminate the surface of the paperboard used as the canopy portion 15.
  • the inner surface of the bottom portion is the laminate portion.
  • the partial force S which is the outer portion of the canopy portion is configured to be the laminate portion.
  • the paper lid manufacturing process of the present invention includes a conventional conical main body 51 that expands upward, and a force rule formed by being inserted outwardly into the upper edge of the main body 51. This is very similar to the manufacturing process of the paper container 50 including the part 52 and the bottom 53 provided inside the main body part 51. Therefore, the paper lid 16 of the present invention can be manufactured using a conventional paper container manufacturing apparatus.
  • the main difference is that in the conventional paper container, the main body 51 has a considerable depth, whereas in the paper lid of the present invention, such a depth is made as small as possible. (Up to 2cm as an example) For this reason, the mold 20 for the paper lid of the present invention should be prepared separately from the mold for the paper container.
  • the conical taper force is selected so that the taper has substantially the same value, and as shown in FIG.
  • the paper lid 16 according to the invention it can be covered simply by applying an upper force. It is preferable that the taper angles of the two are substantially equal so that they can be engaged with each other so that they sufficiently function as a lid.
  • the paper lid 16 of the present invention can be attached to the paper container 50 simply by inserting from the top to the bottom. That is, both the paper container 50 and the paper lid 16 have a top curl portion having substantially the same diameter, and the taper angle is made substantially the same.
  • the difference in diameter between the top of the paper container 50 main body and the bottom of the paper lid 16 is large, so the curled portion of the paper lid 16 that is easy to insert easily
  • the mounting operation ends when the main body part is inserted until it completely overlaps the curl part.
  • the present invention there is a curl portion at the top of the paper lid 16 and the paper container 50, which serves as a stopper when the paper lid 16 is mounted, and can be easily removed when removed.
  • the strength when held by hand can be increased.
  • the top curl part is mechanically formed, so there is a limit to the paper thickness.
  • the lid curl part 33c and the top curl part 52 Double Such a problem can be solved.
  • the length of the insertion portion of the paper lid 16 of the present invention that is, the height is longer, the contact area between the inner surface of the paper container 50 and the outer surface of the paper lid 16 increases. It is preferable to select the length that seems to be most appropriate in relation to adhesion. Further, it is preferable that the resistance when inserting is set to an appropriate size so that a fluid such as water filled in the paper container 50 does not overflow even when the container is tilted.
  • a stopper process may be applied to the outer surface of the side wall surface 33 of the paper lid 16.
  • a non-slip treatment treatment may be performed by laminating a polyurethane sheet or printing an anti-slip agent such as a resin or a chemical having a high frictional resistance.
  • the inside of the paper container 50 is usually laminated with polyethylene, and the polyurethane lid is laminated on the outer surface of the side wall surface of the paper lid 16 so that both of them are laminated. Frictional resistance increases and is difficult to come off. In this case, the frictional resistance increases, but the magnitude of the frictional resistance can be changed as appropriate by adjusting the height of the paper lid 16.
  • non-slip finishing agents include ethylene copolymers such as EVA, EMA, EMMA, and EMAA, styrene elastomers such as hot melt, ionomer, SEPS, and SEBS, nylon, and polyester. Elastomers etc. may be extruded and laminated.
  • the anti-slip process described above is a belt-like pattern that protrudes outward along the circumference on the outer side of the side wall surface 33 of the paper lid 16. If the protrusions are located in a discontinuous manner in the circumferential direction and protrude outward, the dot-like protrusions may be embossed. In this case, it is preferable that the inner side of the main body portion of the paper container 50 is also made to be more difficult to slip when the two are overlapped by embossing 33d projecting inward along the circumference.
  • outer side wall surface 33 of the paper lid 16 may be projected in a band shape along the circumference, and the inner side of the main body of the paper container 50 may also be projected outward in the belt shape.
  • the protruding direction of the emboss can be reversed from that described above.
  • the paper lid 16 By preventing slippage between the paper lid 16 and the paper container 50 described above, the paper lid 16 can be covered on the paper container 50 without leakage. [0051] Further, a small hole for venting air is formed in the canopy portion 15 of the paper lid 16 of the present embodiment. As a result, when the paper lid 16 is put on the paper container 50, even if the lid and the container are tightly fitted and the space at the top of the container is compressed, a small pore force for venting air will escape and liquid leakage will occur. Is prevented.
  • the central portion of the canopy portion 15 of the paper lid 16 is moved upward by a press carriage or the like. It may be projected (see Fig. 4). By rubbing in this way, even if the paper lid 16 is covered, the internal volume of the container does not decrease, and a sufficient amount of liquid can be stored. In this case, the protruding portion 15b of the canopy portion 15 may be appropriately protruded from the upper edge of the wall surface portion 33.
  • the canopy 15 is laminated, by leaving the cut line 15c only in the paper portion while leaving the laminate part, it is possible to maintain the sealing property of the cut line 15c and prevent liquid leakage.
  • the cut line 15c it is preferable that the above-described small holes for venting air are formed in a region surrounded by the cut line 15c.
  • FIG. 7 shows a cross-sectional view of another embodiment of the present invention.
  • the lid shown in FIG. 7 is mainly made of paper, and has a wall surface portion 33 having a conical outer surface that engages with the inner surface of the conical main body portion of the paper container 50, and outwardly on the upper edge of the wall surface portion 33.
  • the lid curl portion 33c is formed by being inserted, and the canopy portion 15 is attached to the lid curl portion 33c whose peripheral edge is formed at the upper edge portion of the wall surface portion 33.
  • the method of forming the wall surface portion 33 and the lid curl portion 33c is the same as in the above-described embodiment.
  • the canopy portion 15 is preferably made of paper, and a resin film 33f is formed on the lower side of the paper by lamination, coating, printing, or the like, or a water repellent is applied, and the lid curl portion (top curl) A resin coating is preferably thermally bonded to 33c. Prior to thermal bonding of the canopy 15, it is preferable that the top of the lid curl portion (top curl) 33 c be pressed flat against a flat plate. Since the lid body is made of paper, it is possible to print advertisements etc. on the canopy that is easy to print on the upper side of the lid.
  • the canopy portion 15 of this embodiment is formed as a transparent resin sheet, and a paper container is used.
  • the contents of the vessel may be visible.
  • FIG. 1 is a diagram schematically showing a process for manufacturing a paper lid according to the present invention, in which (a) is a perspective view of a process for manufacturing a canopy part, and (b) is a process for manufacturing a wall surface part. (C) is a cross-sectional view of the step of attaching the canopy portion to the wall surface portion, and (d) is a perspective view of the step of manufacturing the curl portion on the top of the wall surface portion.
  • FIG. 2 is a cross-sectional view showing a state in which a paper lid according to the present invention is put on a paper container.
  • FIG. 3 is a perspective view of an embossed paper lid according to the present invention.
  • FIG. 4 is a cross-sectional view of a paper lid in which the central portion of the canopy portion of the paper lid according to the present invention protrudes from the upper edge of the wall surface portion.
  • FIG. 5 is a perspective view of a paper lid formed with a straw insertion hole according to the present invention as seen from the canopy side.
  • FIG. 6 is a cross-sectional view of another embodiment of the paper lid according to the present invention.
  • FIG. 7 is a cross-sectional view of another embodiment of the present invention.

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

Abstract

[PROBLEMS] A paper-made lid for a paper-made container, capable of being produced at extremely low cost without causing an environmental problem when it is discarded. [MEANS FOR SOLVING PROBLEMS] The lid (16) is used to cover the paper-made container (50) having a curled section (52) curled outward at the upper edge of a circular conical body section (5) expanded upward. The lid is essentially made of paper and has a wall face section (33) having a circular conical outer face engaging with the inner face of the circular conical body section of the paper-made container (50); a curled section (33c) of the lid, curled outward at the upper edge of the wall face section (33); and a top lid section (15) provided inside the wall face section. The lower edge of the wall face section is bent and the top lid section is fixed at a position above the lower edge.

Description

明 細 書  Specification
紙製容器用の紙製蓋  Paper lids for paper containers
技術分野  Technical field
[0001] 本発明は紙製容器用の紙製蓋に関する。より詳しくは、本発明は、上向きに拡開し た円錐状の本体部と本体部の上縁部に外向きに卷込まれて形成されたカール部と 力もなる紙コップなどの紙製容器を覆う紙製の蓋に関する。  [0001] The present invention relates to a paper lid for a paper container. More specifically, the present invention relates to a paper container such as a paper cup that has a conical body portion that is expanded upward, a curl portion that is formed by being swung outwardly at the upper edge portion of the main body portion, and a force. It relates to a cover made of paper.
背景技術  Background art
[0002] 上述した紙コップのような紙製の容器は種々の用途に広く用いられている。例えば 、飲料水やコーヒー、紅茶またコーラ類などのソフトドリンク、スナック菓子などを給仕 するためのコップ、スープ粉末を溶解して給仕する容器などに用いられ、更により大 きい紙製容器は、その中にかき氷を入れたり、また場合によってはアルコール飲料な どを入れて給仕するのに用いられて 、る。  [0002] Paper containers such as the paper cups described above are widely used in various applications. For example, it is used for drinking water, coffee, tea, soft drinks such as colas, cups for serving snacks, containers for dissolving soup powder, and even larger paper containers. It is used to serve shaved ice and in some cases alcoholic drinks.
[0003] このような紙製のコップなどの容器において、容器に内容物を入れたまま用いること もある力 移動時に内容物が溢れたりすることを防止するために容器の上面に蓋を被 せることが広く行われて 、る。  [0003] In a container such as a paper cup, a force that may be used while the contents are put in the container is covered. In order to prevent the contents from overflowing during movement, a cover is placed on the upper surface of the container. It is widely done.
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] し力しながら、このような蓋として従来から専らプラスチック製の蓋が実用されている 。蓋がプラスチック製であると一緒に捨ててしまった場合には環境問題を生じるので、 コップなどの容器本体が紙製であっても、プラスチック製の蓋は容器と一緒に廃棄す ることができない。容器の使用後に廃棄する際には、環境問題をなくすために紙製容 器本体とプラスチック製の蓋とをいちいち分別して分離して廃棄する必要があり、非 常に手間ひまが掛り面倒である。 [0004] However, as such a lid, a plastic lid has heretofore been put into practical use exclusively. If the lid is made of plastic, it will cause environmental problems, so even if the container body such as a cup is made of paper, the plastic lid cannot be discarded with the container. . When disposing of the container after use, it is necessary to separate the paper container body and the plastic lid separately and dispose of them in order to eliminate environmental problems, which is very troublesome and cumbersome.
[0005] 従って、このような手間ひまをなくし、コップなどの容器と蓋を一緒に廃棄することが 可能とするために、紙製の蓋を用いることが検討されて 、る。 [0005] Therefore, in order to eliminate such time and effort and to make it possible to dispose of a container such as a cup and a lid together, it is considered to use a paper lid.
[0006] 例えば、特許文献 1 (実用新案登録第 3101102号公報)には、カップ上端のリング フランジと円形の頂板部が密着し、頂板部の周囲に垂下する側垂部の内径のフラン ジ外径と同径でフランジに密着して嵌合することを可能とすることを特徴とする紙製の 蓋が提案されている。 [0006] For example, in Patent Document 1 (Utility Model Registration No. 3101102), a ring flange at the upper end of a cup and a circular top plate portion are in close contact with each other, and a flange having an inner diameter of a side hanging portion that hangs around the top plate portion. A paper lid has been proposed which has the same diameter as the outer diameter of the die and can be fitted in close contact with the flange.
[0007] また、特許文献 2 (特開 2002— 211617号公報)には、開口縁に外向カール部を 有するカップ状容器と、前記カップ状容器の開口縁に熱接着される蓋材と、前記蓋 材が熱接着された前記カップ状容器の開口縁に取付けられる嵌合蓋とからなる容器 であって、前記嵌合蓋が天面板と円筒状の側面板を有する構成からなり、前記蓋材 が取出口を形成するための切目線が形成された構成カゝらなることを特徴とする嵌合 蓋付カップ状容器が開示されて!ヽる。  [0007] Further, Patent Document 2 (Japanese Patent Application Laid-Open No. 2002-212617) discloses a cup-shaped container having an outward curled portion at an opening edge, a lid member thermally bonded to the opening edge of the cup-shaped container, A container comprising a fitting lid attached to an opening edge of the cup-shaped container to which a lid member is thermally bonded, wherein the fitting lid comprises a top plate and a cylindrical side plate; A cup-shaped container with a fitting lid is disclosed, which is characterized in that a cut line for forming an outlet is formed.
[0008] 特許文献 1の蓋部材はカップ上端のリング状フランジに蓋を周囲に垂下する側垂部 を有する蓋を密着係合しようとするものであるが、このような形状の蓋を紙で作ること は容易ではなぐ実際問題としてカップ上端のリング状フランジと蓋との密着が旨くい かないし、上面フランジ部と蓋の円板部の接触のみで蓋をしょうとした場合には蓋の 機能が十分果たされず、移動中にコップなどの容器が横を向いたりすると中の液が 漏れたりする。  [0008] The lid member of Patent Document 1 is intended to tightly engage a lid having a side hanging portion for hanging the lid around the ring-shaped flange on the upper end of the cup. The lid having such a shape is made of paper. In fact, it is not easy to make, and the ring-shaped flange at the top of the cup and the lid do not adhere well, and the lid functions when the lid is only touched by the top flange and the disc of the lid. If the container such as a cup turns sideways while moving, the liquid inside will leak.
[0009] また特許文献 2のものにあっては、周縁部に中心を向く複数の折鄞が形成された板 紙力もなる円形のブランク板を、押鄞が形成された周縁部を折鄞に沿って絞り込んで 円形の天面板と円筒状の側面板を形成し、側面板の先端部を内方に巻き込むように 折り返して内側面板を形成した構成からなって ヽるものが実施例に記載されて ヽる。 しかしこのようにしたものにあっても、カップの上縁と蓋との嵌合を密にすることはでき ず、液漏れの防止が容易ではなぐまた製造も特別な機械が必要であり、製造コスト が高いものとなる。  [0009] In addition, in the case of Patent Document 2, a circular blank plate having a paperboard force in which a plurality of creases facing the center are formed on the peripheral portion, and a peripheral portion on which the presser foot is formed is a fold. The example described in the examples is composed of a configuration in which a circular top plate and a cylindrical side plate are formed by narrowing down along the side plate, and the inner side plate is formed by folding back the tip of the side plate inwardly. Speak. However, even with this configuration, the upper edge of the cup and the lid cannot be tightly fitted, and it is not easy to prevent liquid leakage, and manufacturing requires special machines. Cost is high.
[0010] 特許文献 3 (実用新案登録第 3080882号公報)には、上端部にリング状の縁部を 備える紙コップの蓋であって、  Patent Document 3 (Utility Model Registration No. 3080882) discloses a paper cup lid having a ring-shaped edge at its upper end,
前記蓋は、前記紙コップの上端部の内周部に嵌合するリング状の外壁部を備える 内側片および該内側片の下端部力 径方向内方に屈曲された円形状の底片部を備 える円形の凹皿部と、  The lid includes a ring-shaped outer wall portion that fits into an inner peripheral portion of the upper end portion of the paper cup, and includes an inner piece and a lower bottom portion force of the inner piece, and a circular bottom piece bent inward in the radial direction. A circular concave plate
前記凹皿部の前記リング状の外壁部の頂部と連続し、外方に折曲され、紙コップの 前記リング状縁部の上に臨むリング状の鍔部と、 前記リング状の鍔部の外径部に連続して下方に屈曲され、前記紙コップのリング状 縁部の外周を囲繞するリング状の外側片とからなり、前記蓋のリング状外側片には、 径方向内方に突出する係止突起を、円周方向に所定ピッチで放射状に複数個設け 、前記各部分をシート状の一枚の紙で全一体に成形したことを特徴とする紙コップの 紙製の蓋が開示されている。 A ring-shaped flange that is continuous with the top of the ring-shaped outer wall of the concave plate, is bent outward, and faces the ring-shaped edge of the paper cup; The ring-shaped outer piece comprises a ring-shaped outer piece that is bent downward continuously to the outer diameter portion of the ring-shaped flange portion and surrounds the outer periphery of the ring-shaped edge portion of the paper cup. A paper cup characterized in that a plurality of locking projections projecting radially inward are provided radially at a predetermined pitch in the circumferential direction, and each of the portions is formed integrally with a sheet of paper. A paper lid is disclosed.
[0011] この特許文献 3に記載されている紙製の蓋は複雑な形状に紙を成形して作るもの であり、特別の紙製蓋製造装置が必要であり、紙製の蓋の製造コストが極めて高いも のとなる。  [0011] The paper lid described in Patent Document 3 is formed by molding paper into a complicated shape, requires a special paper lid manufacturing apparatus, and the cost of manufacturing the paper lid Is extremely high.
[0012] 以上のように、特許文献 1〜3に開示されているような紙製の蓋を用いることの提案 がされているが、何れも製造が容易ではなぐまた製造精度も特に特許文献 1、 2のも のは製造精度がよくなぐ蓋としての機能を十分果たせず、また特許文献 3のものは 精度は出るにしても非常に製造が面倒で製造コストの高いものであった。  [0012] As described above, it has been proposed to use a paper lid as disclosed in Patent Documents 1 to 3, but none of them is easy to manufacture, and the manufacturing accuracy is particularly high. No. 2 did not sufficiently function as a lid with good manufacturing accuracy, and the patent document 3 was very troublesome and expensive to manufacture even though the accuracy was high.
[0013] 本発明は上述したような従来の技術に付随する問題点に鑑みて、環境問題を解決 し、製造が容易で且つ極めて安価に製造することができる紙製容器用の紙製蓋を提 供することを目的とする。  [0013] In view of the problems associated with the conventional techniques as described above, the present invention provides a paper lid for a paper container that solves environmental problems and is easy to manufacture and can be manufactured at a very low cost. The purpose is to provide.
特許文献 1 :実用新案登録第 3101102号公報  Patent Document 1: Utility Model Registration No. 3101102
特許文献 2:特開 2002— 211617号公報  Patent Document 2: Japanese Patent Laid-Open No. 2002-211617
特許文献 3:実用新案登録第 3080882号公報  Patent Document 3: Utility Model Registration No. 3080882
課題を解決するための手段  Means for solving the problem
[0014] 本発明においては、上向きに拡開した円錐状の本体部の上縁部に外向きに巻込ま れて形成されたカール部を有する紙製容器を覆うための蓋であって、該蓋は主体が 紙製であり、前記紙製容器の円錐状の本体部の内面に係合する円錐状外面を有す る壁面部と、該壁面部の上縁部に外向きに卷込まれて形成された蓋カール部と、前 記壁面部の内部に設けられた天蓋部とからなり、前記壁面部が扇形のブランクから 形成された円錐状であり、前記天蓋部は円形のブランクから形成され前記側壁部の 下縁部より上位に位置するよう固定されていることを特徴とする紙製容器用の紙製蓋 により上述の課題を解決する。  [0014] In the present invention, there is provided a lid for covering a paper container having a curled portion formed by being wound outwardly on an upper edge portion of a conical main body portion that is expanded upward. The main body is made of paper, and is inserted outwardly into the wall surface portion having a conical outer surface that engages with the inner surface of the conical body portion of the paper container and the upper edge portion of the wall surface portion. The lid curl portion is formed, and the canopy portion provided inside the wall surface portion. The wall surface portion is a conical shape formed from a fan-shaped blank, and the canopy portion is formed from a circular blank. The above-described problems are solved by a paper lid for a paper container, which is fixed so as to be positioned higher than the lower edge portion of the side wall portion.
[0015] 本発明は、従来全く発想されることがな力つた紙コップの底部分を紙製の蓋として 利用しょうとするものである。 [0015] In the present invention, the bottom portion of a paper cup that has never been conceived in the past is used as a paper lid. It is what you want to use.
[0016] 本発明によれば、従来力 用いられている紙コップの一部をそのまま用いたような 形で、し力も紙コップを形成するときに本体部に形成されるテーパ部と係合するような テーパ部を有するようにして紙製の蓋を形成することによって、従来の紙コップの製 造工程と極めて類似した工程で簡単に紙製蓋を製造することができ、しかもその両方 のテーパ部を用いることによって極めてよく嵌合し液漏れなども生じない紙製の蓋が 提供される。この場合に、紙製蓋のカール部の径を被せる紙コップのカール部の径と 略同じにすることが好まし 、。  [0016] According to the present invention, a part of a paper cup that has been conventionally used is used as it is, and the force is also engaged with the tapered portion formed in the main body when the paper cup is formed. By forming the paper lid so as to have such a taper portion, the paper lid can be easily manufactured in a process very similar to the conventional paper cup manufacturing process, and both tapers are tapered. By using this part, a paper lid is provided that fits very well and does not leak. In this case, it is preferable that the diameter of the curled portion of the paper lid is set to be approximately the same as the diameter of the curled portion of the paper cup.
[0017] また本発明においては、上向きに拡開した円錐状の本体部の上縁部に外向きに卷 込まれて形成されたカール部を有する紙製容器を覆うための蓋であって、該蓋は主 体が紙製であり、前記紙製容器の円錐状の本体部の内面に係合する円錐状外面を 有する壁面部と、該壁面部の上縁部に外向きに卷込まれて形成された蓋カール部と 、前記壁面部の内部に設けられた天蓋部とからなり、前記壁面部が該壁面部を前記 紙製容器の本体部に密係合させるストツバ処理を施されており、前記天蓋部が該下 縁部より上位に位置するよう固定されていることを特徴とする紙製容器用の紙製蓋と してちよい。  [0017] Also, in the present invention, a lid for covering a paper container having a curled portion formed by being outwardly inserted into an upper edge portion of a conical main body portion that is expanded upward, The lid is mainly made of paper, and is inserted outwardly into a wall surface portion having a conical outer surface that engages with an inner surface of the conical main body portion of the paper container, and an upper edge portion of the wall surface portion. A lid curl portion formed on the wall surface portion and a canopy portion provided inside the wall surface portion, and the wall surface portion is subjected to a stapling process for tightly engaging the wall surface portion with the main body portion of the paper container. The canopy portion is fixed so as to be positioned higher than the lower edge portion, and may be a paper lid for a paper container.
[0018] このストッパー処理としては滑止め加工として壁面部に摩擦抵抗の大きい榭脂ゃ薬 品、例えばポリウレタンなどをラミネートまたはコーティング、若しくは印刷することによ つて行ってもよ!、し、または壁面部に円周に沿って線状にエンボスを形成してもよ!/ヽ 。この場合に紙製蓋のみにエンボスカ卩ェしてもよいし、紙製蓋と容器本体の壁面とに 共にエンボス加工してもよ 、。  [0018] This stopper treatment may be performed by laminating, coating, or printing a resin product having a high frictional resistance, such as polyurethane, on the wall surface as a non-slip process! You may form embosses in a line along the circumference of the part! / ヽ. In this case, embossing may be performed only on the paper lid, or both the paper lid and the wall surface of the container body may be embossed.
[0019] 更に本発明においては、上向きに拡開した円錐状の本体部の上縁部に外向きに 巻込まれて形成されたカール部を有する紙製容器を覆うための蓋であって、該蓋は 主体が紙製であり、前記紙製容器の円錐状の本体部の内面に係合する円錐状外面 を有する壁面部と、該壁面部の上縁部に外向きに卷込まれて形成された蓋カール部 と、前記壁面部の内部に設けられた天蓋部とからなり、前記天蓋部が該下縁部より上 位に位置するよう固定されているとともに該天蓋部の中央部分を上向きに突出させて いることを特徴とする紙製容器用の紙製蓋として、蓋を被せることによって容器の収 納空間が減少することを防止してもよい。このようにすることにより、紙製蓋に被せるこ とによっても容器の内容量が減少せず、十分な量の液を収納することができる。 Furthermore, in the present invention, there is provided a lid for covering a paper container having a curled portion formed by being wound outwardly on an upper edge portion of a conical main body portion that is expanded upward. The lid is mainly made of paper and is formed by being inserted outwardly into a wall surface portion having a conical outer surface that engages with the inner surface of the conical body portion of the paper container, and an upper edge portion of the wall surface portion. A lid curl portion and a canopy portion provided inside the wall surface portion, the canopy portion being fixed so as to be positioned above the lower edge portion, and a central portion of the canopy portion facing upward As a paper lid for a paper container, the container can be stored by covering the lid. You may prevent that a delivery space decreases. By doing so, even when the paper lid is put on, the internal volume of the container is not reduced, and a sufficient amount of liquid can be stored.
[0020] また、本発明の天蓋部は下側、すなわち、容器に被せたときに、容器の内容物に対 面する面、の紙の上に榭脂被膜が形成され、または撥水剤が塗布されていることが 好ましい。榭脂被膜の形成は例えばポリエチレンフィルムをラミネートし、またはコー ティング、若しくは印刷する。このようにすることによって、天蓋部の下側に液が当たつ ても蓋が傷むことが防止できる。  [0020] In addition, the canopy portion of the present invention is formed on the lower side, that is, on the surface of the container that faces the contents of the container when it is put on the container. It is preferable that it is applied. The resin film is formed by, for example, laminating a polyethylene film, coating or printing. By doing so, the lid can be prevented from being damaged even if the liquid hits the lower side of the canopy.
[0021] また、容器の内容物が液体の場合には、蓋を容器に被せる際に蓋と容器が密嵌合 することにより容器上部の空間が圧縮されて液洩れが生じることがある。この対策とし て、本発明の紙製蓋においては、前記天蓋部に空気抜き用の小孔が形成されてい ることにより、このような不都合を防止することができる。  [0021] In addition, when the contents of the container are liquid, when the cover is put on the container, the cover and the container are closely fitted to each other, so that the space above the container is compressed and liquid leakage may occur. As a countermeasure, in the paper lid of the present invention, such a disadvantage can be prevented by forming a small hole for venting air in the canopy portion.
[0022] 更にまた、本発明の紙製容器においては、蓋部材の天蓋部にストローを挿入する ための穴を形成し、または穴を形成するための切込み線を入れておいてもよい。 発明の効果  Furthermore, in the paper container of the present invention, a hole for inserting a straw may be formed in the canopy portion of the lid member, or a cut line for forming a hole may be provided. The invention's effect
[0023] 本発明は、従来全く発想されることがな力つた紙コップの底部分を紙製の蓋として 利用しょうとするものである。  [0023] The present invention intends to use the bottom portion of a paper cup, which has never been conceived in the past, as a paper lid.
[0024] 本発明により、蓋の主体を紙製容器と同じく紙製とでき、廃棄時に紙製容器と分別 することなく廃棄することができ、環境問題を生じない。  [0024] According to the present invention, the main body of the lid can be made of paper like the paper container, and can be discarded without being separated from the paper container at the time of disposal, so that environmental problems do not occur.
[0025] 本発明によれば、従来紙製容器を製造しているのと同様の工程により紙製蓋を製 造することができる。従って、紙製蓋の製造のために新たに特別な施設は必要とせず 、従来の紙製容器製造装置の僅かな改造でそのまま製造することができ、製造コスト を極めて安価とすることができる。  [0025] According to the present invention, a paper lid can be manufactured by the same process as that for manufacturing a conventional paper container. Therefore, a new special facility is not required for manufacturing the paper lid, and the paper lid can be manufactured as it is with a slight modification of the conventional paper container manufacturing apparatus, and the manufacturing cost can be extremely low.
[0026] また、本発明によれば、高さが相違するだけで紙製容器の一部をそのまま用いたよ うな形となって 、るために、紙製容器の本体部のテーパと同様なテーパを持つ傾斜 壁を持った紙製蓋を作ることができ、両テーパ部の角度が同じような角度であるため 嵌合し易ぐ従って、液漏れのない状態で紙製容器に紙製蓋を被せることができる。  [0026] Further, according to the present invention, the taper is similar to the taper of the main body of the paper container. It is possible to make a paper lid with an inclined wall, and the angle of both tapered parts is the same angle, so it is easy to fit. Can be covered.
[0027] また、本発明の紙製容器は、前述した特許文献 1または 2の紙製蓋が蓋の外側に 被っているのに対し、本発明の紙製蓋は蓋の内側に被る状態となるために、紙製蓋 を紙製容器に被せた状態においては、紙製容器と紙製蓋は一体として、いわばモノ コック構造状態となり、極めて強度の強いものとなり、手に持って容器を移動させたり するような場合にも、容器が変形したりすることがなぐ安心して容器を移動させること ができる。 [0027] Further, in the paper container of the present invention, the paper lid of Patent Document 1 or 2 described above covers the outside of the lid, whereas the paper lid of the present invention covers the inside of the lid. Paper lid to become When the paper container is put on the paper container, the paper container and the paper lid are integrated into a so-called monocoque structure, which is extremely strong, and the container is moved by hand. However, the container can be moved with peace of mind without the container being deformed.
[0028] また、本発明にお 、ては蓋が紙製であるので、印刷し易ぐ天蓋部に宣伝広告など を印刷することができる。  [0028] Further, in the present invention, since the lid is made of paper, it is possible to print advertisements or the like on the canopy portion that is easy to print.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0029] 以下、添付図面を参照して本発明を詳細に説明する。図 1は本発明に係る紙製蓋 の製造工程を概略的に示した図である。 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a diagram schematically showing a process for manufacturing a paper lid according to the present invention.
[0030] 図 1において、所定幅の天蓋部用原紙 10をプレス型の間に送りながら押型 11をダ イス 12に押込むことにより円板形状の底板 13を打ち抜く。次いで、プレスの押型の中 の内側の型 14をダイス 12側に突き出して絞り込み、縁 15aが凹んだ状態の天蓋部 1In FIG. 1, the base plate 13 having a disc shape is punched out by pushing the pressing die 11 into the die 12 while feeding the base paper 10 for the canopy part between the pressing dies. Next, the inner die 14 in the press die is protruded and narrowed to the die 12 side, and the canopy portion 1 in which the edge 15a is recessed 1
5を形成する。絞り加工により天蓋部 15が形成されると、天蓋部 15を容器状の円錐 型の金型 20の底に真空吸着する(図 1 (a)参照)。 Form 5. When the canopy portion 15 is formed by drawing, the canopy portion 15 is vacuum-sucked to the bottom of the container-like conical mold 20 (see FIG. 1 (a)).
[0031] 天蓋部用原紙 10としては、従来力も紙製容器に用いられている原紙を用いることが でき、一例として、バージンパルプ仕様で 150〜300G/m2程度とすることができる。 [0031] As the canopy base paper 10, a base paper that has been conventionally used in paper containers can be used. As an example, the base paper can be about 150 to 300 G / m 2 in virgin pulp specifications.
[0032] 一方、紙製蓋の壁面部 33となる部分の原紙 30を送りながら扇形形状のブランク 31 に打ち抜き、この打ち抜いた扇形形状のブランク 31を前述した円錐型の金型 20の周 囲に巻き付け円周方向の両端部を加熱して互いに接着 33aして所定のテーパ角の 円錐状の壁面部 33とする(図 1 (b)参照)。 [0032] On the other hand, while feeding the base paper 30 of the portion that becomes the wall surface portion 33 of the paper lid, it is punched into a fan-shaped blank 31 and the punched fan-shaped blank 31 is placed around the conical mold 20 described above. Both ends in the winding circumferential direction are heated and bonded to each other 33a to form a conical wall portion 33 having a predetermined taper angle (see FIG. 1 (b)).
[0033] 壁面部用原紙 30は天蓋部用原紙 10と同様に、従来力も紙製容器に用いられてい る原紙を用いることができ、一例として、バージンパルプ仕様で 150〜300GZm2程 度とすることができる。 [0033] Similar to the canopy base paper 10, the base paper for the wall part 30 can be a base paper conventionally used for paper containers. For example, it is about 150 to 300 GZm 2 in the virgin pulp specification. be able to.
[0034] そして、壁面部 33 (連結された扇形のブランク 31)の下端 33bを加熱してから内側 に折込んで天蓋部 15の絞った縁部分 15aを包むように重ねて、両者を接着する(図 1 (c)参照)。なお、別の態様として、壁面部 33の下端 33bを内側に折込まずに、下 端 33bの内側に天蓋部 15の絞った縁部分 15aの外側を接触させて両者を接着して もよい(図 6参照)。 [0035] 壁面部 33の天蓋部 15と反対側の上縁部はツール 41を回転させながら外側に巻き 込み、更に型 42で押して上端を丸め込み蓋カール部 33cを形成する(図 1 (d)参照) [0034] Then, the lower end 33b of the wall surface portion 33 (the connected fan-shaped blank 31) is heated and then folded inward so as to wrap the squeezed edge portion 15a of the canopy portion 15 and bond them together (see FIG. 1 (c)). As another mode, the lower end 33b of the wall surface portion 33 may not be folded inward, and the outside of the narrowed edge portion 15a of the canopy portion 15 may be brought into contact with the inner side of the lower end 33b to bond them together (see FIG. 6). [0035] The upper edge portion of the wall surface portion 33 opposite to the canopy portion 15 is wound outward while the tool 41 is rotated, and is further pushed by the die 42 to round the upper end to form a lid curl portion 33c (FIG. 1 (d) reference)
[0036] このようにして天蓋部 15を一端部に有する本発明に係る紙製蓋 16が製造される ( 図 2参照)。本発明においては蓋が紙製であるので、印刷し易ぐ天蓋部 15に宣伝広 告などを印刷することができる。 In this way, the paper lid 16 according to the present invention having the canopy 15 at one end is manufactured (see FIG. 2). In the present invention, since the lid is made of paper, an advertisement can be printed on the canopy portion 15 which is easy to print.
[0037] このように製造された紙製蓋 16は、或る程度の高さがある場合には、従来の紙製容 器と同様に、複数個を互いの蓋カール部 33cが接触するようにして重ねて保管や移 送することができる。なお、紙製蓋 16の高さが低い場合や紙製蓋 16の天蓋部の位置 を高くした場合には、複数個の紙製蓋 16を重ねることが困難なことがある。このような 場合には、複数の紙製蓋 16を、例えば円筒状の収納容器に収納して保管や移送す る。  [0037] When the paper lid 16 manufactured in this way has a certain height, a plurality of the lid curl portions 33c come into contact with each other as in the conventional paper container. Can be stored and transported in layers. When the height of the paper lid 16 is low or when the position of the canopy portion of the paper lid 16 is increased, it may be difficult to stack a plurality of paper lids 16. In such a case, a plurality of paper lids 16 are stored in, for example, a cylindrical storage container and stored or transported.
[0038] 上述の製造方法から明らかなように、本発明においては壁面部 33の内部に設けら れた天蓋部 15が壁面部 33の下縁部より上位に位置するよう固定されている。この製 造工程は従来の紙製コップの製造工程と非常によく似ているものである。  As apparent from the manufacturing method described above, in the present invention, the canopy portion 15 provided inside the wall surface portion 33 is fixed so as to be positioned higher than the lower edge portion of the wall surface portion 33. This manufacturing process is very similar to that of conventional paper cups.
[0039] なお、本発明に係る紙製容器の製造に際しては、原料の板紙にポリエチレンなどを ラミネート加工したものを用いることが、壁面部 15を形成している扇形のブランク 31の 円周方向両端部の接着や壁面部 33と天蓋部 15との接着を良好に行なうために好ま しい。ラミネート加工としては、従来の紙製容器に用いられているものと同程度とする ことができ、例えば、 18〜20ミクロンのポリエチレンをラミネートする。  [0039] It should be noted that, in the manufacture of the paper container according to the present invention, it is possible to use a raw paperboard obtained by laminating polyethylene or the like at both ends in the circumferential direction of the fan-shaped blank 31 forming the wall surface portion 15. This is preferable for good adhesion of the wall and the wall 33 and the canopy 15. The laminating process can be the same as that used in conventional paper containers. For example, polyethylene of 18 to 20 microns is laminated.
[0040] 特に、本発明においては、天蓋部 15となる板紙の表面にラミネート加工をすること が好ましい。その場合に、通常のカップでは底部の内側となる面がラミネート部分とし ているが、本発明においては、それと逆に天蓋部の外側になる部分力 Sラミネート部分 となるようにして構成することが好ま 、。  [0040] In particular, in the present invention, it is preferable to laminate the surface of the paperboard used as the canopy portion 15. In that case, in the normal cup, the inner surface of the bottom portion is the laminate portion. However, in the present invention, on the contrary, the partial force S which is the outer portion of the canopy portion is configured to be the laminate portion. Favored ,.
[0041] 本発明の紙製蓋の製造工程は、従来の上向きに拡開した円錐状の本体部 51と、 本体部 51の上縁部に外向きに卷込まれて形成された力ール部 52と、本体部 51の内 部に設けられた底部 53とからなる紙製容器 50の製造工程とよく似ている。そのため、 従来の紙製容器の製造装置を用いて、本発明の紙製蓋 16を製造することができる。 なお、大きく違う点は、従来の紙製容器においては本体部 51が相当の深さを持って いるのに対して、本発明の紙製蓋においてはそのような深さは必要なぐ極力小さく している(一例として 2cm程度まで)。このため、本発明の紙製蓋用の金型 20を紙製 容器用の金型とは別に用意すればょ 、。 [0041] The paper lid manufacturing process of the present invention includes a conventional conical main body 51 that expands upward, and a force rule formed by being inserted outwardly into the upper edge of the main body 51. This is very similar to the manufacturing process of the paper container 50 including the part 52 and the bottom 53 provided inside the main body part 51. Therefore, the paper lid 16 of the present invention can be manufactured using a conventional paper container manufacturing apparatus. The main difference is that in the conventional paper container, the main body 51 has a considerable depth, whereas in the paper lid of the present invention, such a depth is made as small as possible. (Up to 2cm as an example) For this reason, the mold 20 for the paper lid of the present invention should be prepared separately from the mold for the paper container.
[0042] ただ、両者とも円錐状にテーパが付けられている力 そのテーパが同じようにほぼ 同じ値となるように選定することによって、図 2に示すように、紙製容器 50の上部に本 発明に係る紙製蓋 16を被せた場合に簡単に上力も乗せるだけで被せることができる 。両者のテーパ角度をほぼ等しくして、互いに係合して蓋としての機能を十分に果た すようにすることが好ましい。  [0042] However, in both cases, the conical taper force is selected so that the taper has substantially the same value, and as shown in FIG. When the paper lid 16 according to the invention is covered, it can be covered simply by applying an upper force. It is preferable that the taper angles of the two are substantially equal so that they can be engaged with each other so that they sufficiently function as a lid.
[0043] より詳しくは、本発明の紙製蓋 16は、上から下に挿入するだけで紙製容器 50に装 着作業を行うことができる。すなわち、紙製容器 50も紙製蓋 16もほぼ同じ直径のトツ プカール部を持ち、テーパ角度をほぼ同じようにしている。  More specifically, the paper lid 16 of the present invention can be attached to the paper container 50 simply by inserting from the top to the bottom. That is, both the paper container 50 and the paper lid 16 have a top curl portion having substantially the same diameter, and the taper angle is made substantially the same.
[0044] 一方、それぞれ構成する紙に厚みがあるため、外径、内径の差が存在する。このた め紙製蓋 16を紙製容器 50に挿入した時点では、紙製容器 50本体部の縦方向の内 径に対して紙製蓋 16の外径が大きくなり、紙製容器 50本体部の側面にはカップ内 側に向けて紙製蓋 16の側面には紙製容器 50側に向けて応力が働くことになり、紙 製容器 50の本体部の内側面と、紙製蓋 16の側壁面の外側側面が互いに押付けら れて密着性が増し、摩擦抵抗が増し、装着した蓋が外れ難くなる。この際に使用する 紙製容器 50、紙製蓋 16の紙の厚みを変えることによって密着性を適宜調整すること ができる。従って、挿入開始時は紙製容器 50本体の頂部と紙製蓋 16の底の直径の 違いが大きいため簡単に挿入がし易ぐ紙製蓋 16のカール部が本体部の紙製容器 50の本体部のカール部に完全に重なるまで挿入した時点で装着作業は終了する。  [0044] On the other hand, there is a difference between the outer diameter and the inner diameter because the paper constituting each has a thickness. For this reason, when the paper lid 16 is inserted into the paper container 50, the outer diameter of the paper lid 16 becomes larger than the inner diameter in the vertical direction of the paper container 50 main body, and the paper container 50 main body Stress is exerted on the side surface of the paper lid 16 toward the inner side of the cup and toward the side of the paper container 50 on the side surface of the paper lid 16. The outer side surfaces of the side wall surfaces are pressed against each other to increase adhesion, increase frictional resistance, and prevent the attached lid from coming off. The adhesiveness can be appropriately adjusted by changing the thickness of the paper container 50 and the paper lid 16 used at this time. Therefore, at the beginning of insertion, the difference in diameter between the top of the paper container 50 main body and the bottom of the paper lid 16 is large, so the curled portion of the paper lid 16 that is easy to insert easily The mounting operation ends when the main body part is inserted until it completely overlaps the curl part.
[0045] 本発明においては、紙製蓋 16と紙製容器 50とのトップ部にカール部が存在し、紙 製蓋 16の装着時のストッパーの役目を有し、外すときには外し易ぐまた、紙製容器 50のトップカール部 52、紙製蓋 16の蓋カール部 33cが二重に重なることにより、手 で持ったときの強度アップが図れる。トップカール部は機械的に形成するので紙厚に 限界があり、特に大きな内容量の紙カップ 50についてはトップカール部 52だけでは 強度不足になるケースがある力 蓋カール部 33cとトップカール部 52とで二重とする ことによりそのような問題を解消できる。 [0045] In the present invention, there is a curl portion at the top of the paper lid 16 and the paper container 50, which serves as a stopper when the paper lid 16 is mounted, and can be easily removed when removed. By overlapping the top curl 52 of the paper container 50 and the lid curl 33c of the paper lid 16, the strength when held by hand can be increased. The top curl part is mechanically formed, so there is a limit to the paper thickness. Especially for the large-capacity paper cup 50, there is a case where the top curl part 52 alone is insufficient in strength. The lid curl part 33c and the top curl part 52 Double Such a problem can be solved.
[0046] 本発明の紙製蓋 16の挿入部分の長さ、すなわち、高さは長ければ長い程、紙製容 器 50内面と紙製蓋 16の外面の接触面積が大きくなるが、この大きさは密着性との関 係で一番適当と思われる長さを選定することが好まし 、。また挿入するときの抵抗力 は紙製容器 50に満たした水などの流動物が容器を倒した場合にも溢れな 、ように適 度の大きさにすることが好ましい。  [0046] As the length of the insertion portion of the paper lid 16 of the present invention, that is, the height is longer, the contact area between the inner surface of the paper container 50 and the outer surface of the paper lid 16 increases. It is preferable to select the length that seems to be most appropriate in relation to adhesion. Further, it is preferable that the resistance when inserting is set to an appropriate size so that a fluid such as water filled in the paper container 50 does not overflow even when the container is tilted.
[0047] 更に、紙製蓋 16と紙製容器 50との滑りが生じ難くするために、紙製蓋 16の側壁面 33の外面にストッパ処理を施してもよい。ストッパ処理としては、ポリウレタンシートを ラミネート加工したり、摩擦抵抗の大きい榭脂、薬品等のスリップ防止剤を印刷などし て、滑止め加工処理をしてもよい。この場合に、紙製容器 50の内側には通常ポリェ チレンによるラミネートカ卩ェがされており、紙製蓋 16の側壁面の外面になる部分にポ リウレタンのラミネートをしておくことによって両者の摩擦抵抗が大きくなり外れ難くな る。この場合に摩擦抵抗が大きくなるが、その摩擦抵抗の大きさは紙製蓋 16の高さを 調節することによって適宜変えることができる。  Furthermore, in order to make it difficult for the paper lid 16 and the paper container 50 to slip, a stopper process may be applied to the outer surface of the side wall surface 33 of the paper lid 16. As the stopper treatment, a non-slip treatment treatment may be performed by laminating a polyurethane sheet or printing an anti-slip agent such as a resin or a chemical having a high frictional resistance. In this case, the inside of the paper container 50 is usually laminated with polyethylene, and the polyurethane lid is laminated on the outer surface of the side wall surface of the paper lid 16 so that both of them are laminated. Frictional resistance increases and is difficult to come off. In this case, the frictional resistance increases, but the magnitude of the frictional resistance can be changed as appropriate by adjusting the height of the paper lid 16.
[0048] 滑止め加工処理剤としては、上述のポリウレタンのほかに、 EVA、 EMA、 EMMA 、 EMAAなどのエチレン共重合体、ホットメルト、アイオノマー、 SEPS、 SEBSなどの スチレン系エラストマ一、ナイロン、ポリエステルエラストマ一などを押出し、ラミネート カロェしてちよい。  [0048] In addition to the above-mentioned polyurethane, non-slip finishing agents include ethylene copolymers such as EVA, EMA, EMMA, and EMAA, styrene elastomers such as hot melt, ionomer, SEPS, and SEBS, nylon, and polyester. Elastomers etc. may be extruded and laminated.
[0049] また、上述した滑り止め加工はラミネート力卩ェの他に、図 3に示すように、紙製蓋 16 の側壁面 33の外側に円周に沿って連続して外側に突出すると帯状突起または円周 方向に不連続に位置し外側に突出すると点状突起などをエンボス加工をしてもよい。 この場合に、紙製容器 50の本体部の内側にも円周に沿って内側に突出するェンボ スカロェ 33dすることによって両者が重なり合うことによって一層滑り難くなり好ましい。 また、紙製蓋 16の側壁面 33の外側に円周に沿って帯状に突出させるとともに紙製 容器 50の本体部の内側にも円周に沿って外側に帯状に突出させてもよい。なお、ェ ンボスの突出方向を上述したものと逆にすることもできる。  [0049] Further, in addition to the laminating force, the anti-slip process described above, as shown in Fig. 3, is a belt-like pattern that protrudes outward along the circumference on the outer side of the side wall surface 33 of the paper lid 16. If the protrusions are located in a discontinuous manner in the circumferential direction and protrude outward, the dot-like protrusions may be embossed. In this case, it is preferable that the inner side of the main body portion of the paper container 50 is also made to be more difficult to slip when the two are overlapped by embossing 33d projecting inward along the circumference. In addition, the outer side wall surface 33 of the paper lid 16 may be projected in a band shape along the circumference, and the inner side of the main body of the paper container 50 may also be projected outward in the belt shape. The protruding direction of the emboss can be reversed from that described above.
[0050] 上述した紙製蓋 16と紙製容器 50との滑り防止により、液漏れのない状態で紙製容 器 50に紙製蓋 16を被せることができる。 [0051] また、本実施例の紙製蓋 16の天蓋部 15には空気抜き用の小孔が形成されている 。これにより、紙製蓋 16を紙製容器 50に被せる際に蓋と容器が密嵌合して容器上部 の空間が圧縮されても空気抜き用の小孔力 空気が抜けるため、液洩れが生じること が防止される。 [0050] By preventing slippage between the paper lid 16 and the paper container 50 described above, the paper lid 16 can be covered on the paper container 50 without leakage. [0051] Further, a small hole for venting air is formed in the canopy portion 15 of the paper lid 16 of the present embodiment. As a result, when the paper lid 16 is put on the paper container 50, even if the lid and the container are tightly fitted and the space at the top of the container is compressed, a small pore force for venting air will escape and liquid leakage will occur. Is prevented.
[0052] 更に本発明において、蓋を被せることによって紙製容器 50の収納空間が減少する ことを防止するために、プレスカ卩ェなどにより紙製蓋 16の天蓋部 15の中央部分を上 側に突出させてもよい(図 4参照)。このよう〖こすること〖こより、紙製蓋 16を被せても容 器の内容量が減少せず、十分な量の液を収納することができる。この場合に、天蓋 部 15の突出部分 15bを適宜、壁面部 33の上縁より突出させてもよい  [0052] Further, in the present invention, in order to prevent the storage space of the paper container 50 from being reduced by covering the lid, the central portion of the canopy portion 15 of the paper lid 16 is moved upward by a press carriage or the like. It may be projected (see Fig. 4). By rubbing in this way, even if the paper lid 16 is covered, the internal volume of the container does not decrease, and a sufficient amount of liquid can be stored. In this case, the protruding portion 15b of the canopy portion 15 may be appropriately protruded from the upper edge of the wall surface portion 33.
[0053] また、本発明の紙製蓋 16においては、従来のプラスチック製の蓋と同様に、図 5に 示すように、紙製蓋 16の天蓋部 15にストローを挿入するための穴または飲み口とな る穴を形成し、またはこれら穴を形成するための切込み線 15cを入れておいてもよい 。天蓋部 15にラミネート加工している場合には、ラミネート部を残して紙部分にのみ 切込み線 15cを入れておくことにより、切込み線 15cの密封性を保ち液洩れを防止 することができる。なお、切込み線 15cを形成する場合には、前述した空気抜き用の 小孔は切込み線 15cによって囲まれた領域に形成することが好ましい。  [0053] Further, in the paper lid 16 of the present invention, as shown in Fig. 5, a hole or a drinking hole for inserting a straw into the canopy portion 15 of the paper lid 16, as in the conventional plastic lid. Holes serving as mouths may be formed, or cut lines 15c for forming these holes may be provided. When the canopy 15 is laminated, by leaving the cut line 15c only in the paper portion while leaving the laminate part, it is possible to maintain the sealing property of the cut line 15c and prevent liquid leakage. When the cut line 15c is formed, it is preferable that the above-described small holes for venting air are formed in a region surrounded by the cut line 15c.
[0054] 図 7に本発明の別の実施例の断面図を示す。図 7に示す蓋は主体が紙製であり、 紙製容器 50の円錐状の本体部の内面に係合する円錐状外面を有する壁面部 33と 、壁面部 33の上縁部に外向きに卷込まれて形成された蓋カール部 33cと、周縁が壁 面部 33の上縁部に形成された蓋カール部 33cに貼着された天蓋部 15とから構成さ れている。壁面部 33および蓋カール部 33cの形成方法は前述した実施例と同様で ある。天蓋部 15は好ましくは紙製であり、この紙の下側にラミネート、コーティング、印 刷などにより榭脂被膜 33fが形成され、または撥水剤が塗布されており、蓋カール部 (トップカール) 33cに好ましくは榭脂被膜が熱接着されている。天蓋部 15の熱接着 に先立ち、蓋カール部(トップカール) 33cの頂部を平板に押付けて平坦としておくこ とが好ましい。蓋の本体が紙製であるので、蓋の上側に印刷し易ぐ天蓋部に宣伝広 告などを印刷することができる。  FIG. 7 shows a cross-sectional view of another embodiment of the present invention. The lid shown in FIG. 7 is mainly made of paper, and has a wall surface portion 33 having a conical outer surface that engages with the inner surface of the conical main body portion of the paper container 50, and outwardly on the upper edge of the wall surface portion 33. The lid curl portion 33c is formed by being inserted, and the canopy portion 15 is attached to the lid curl portion 33c whose peripheral edge is formed at the upper edge portion of the wall surface portion 33. The method of forming the wall surface portion 33 and the lid curl portion 33c is the same as in the above-described embodiment. The canopy portion 15 is preferably made of paper, and a resin film 33f is formed on the lower side of the paper by lamination, coating, printing, or the like, or a water repellent is applied, and the lid curl portion (top curl) A resin coating is preferably thermally bonded to 33c. Prior to thermal bonding of the canopy 15, it is preferable that the top of the lid curl portion (top curl) 33 c be pressed flat against a flat plate. Since the lid body is made of paper, it is possible to print advertisements etc. on the canopy that is easy to print on the upper side of the lid.
[0055] なお、場合によっては、この実施例の天蓋部 15を透明な榭脂シートとして、紙製容 器の内容物が見えるようにしてもよい。この場合に、使用後の分別廃棄の問題を解消 するためには、セロファンシートまたは生分解製フィルムもしくはシートを天蓋部 15に 用いることが好ましい。 [0055] In some cases, the canopy portion 15 of this embodiment is formed as a transparent resin sheet, and a paper container is used. The contents of the vessel may be visible. In this case, it is preferable to use a cellophane sheet or a biodegradable film or sheet for the canopy 15 in order to eliminate the problem of separation and disposal after use.
図面の簡単な説明  Brief Description of Drawings
[0056] [図 1]本発明に係る紙製蓋の製造工程を概略的に示した図であり、(a)は天蓋部の製 造工程の斜視図、(b)は壁面部の製造工程の斜視図、(c)は壁面部に天蓋部を取 付ける工程の断面図、(d)は壁面部のトップにカール部を製造する工程の斜視図で ある。  FIG. 1 is a diagram schematically showing a process for manufacturing a paper lid according to the present invention, in which (a) is a perspective view of a process for manufacturing a canopy part, and (b) is a process for manufacturing a wall surface part. (C) is a cross-sectional view of the step of attaching the canopy portion to the wall surface portion, and (d) is a perspective view of the step of manufacturing the curl portion on the top of the wall surface portion.
[図 2]本発明に係る紙製蓋を紙製容器に被せる状態を示す断面図である。  FIG. 2 is a cross-sectional view showing a state in which a paper lid according to the present invention is put on a paper container.
[図 3]本発明に係るエンボス加工した紙製蓋の斜視図である。  FIG. 3 is a perspective view of an embossed paper lid according to the present invention.
[図 4]本発明に係る紙製蓋の天蓋部の中央部分を壁面部の上縁より突出させた紙製 蓋の断面図である。  FIG. 4 is a cross-sectional view of a paper lid in which the central portion of the canopy portion of the paper lid according to the present invention protrudes from the upper edge of the wall surface portion.
[図 5]本発明に係るストロー挿入穴を形成した紙製蓋を天蓋部側から見た斜視図であ る。  FIG. 5 is a perspective view of a paper lid formed with a straw insertion hole according to the present invention as seen from the canopy side.
[図 6]本発明に係る紙製蓋の他の実施例の断面図である。  FIG. 6 is a cross-sectional view of another embodiment of the paper lid according to the present invention.
[図 7]本発明の別の実施例の断面図である。  FIG. 7 is a cross-sectional view of another embodiment of the present invention.
符号の説明  Explanation of symbols
[0057] 15 [0057] 15
天蓋部  Canopy
16  16
紙製蓋  Paper lid
33  33
壁面部  Wall part
33c  33c
蓋カール部  Lid curl
50  50
紙製容器  Paper container
51 円錐状の本体部51 Conical body
52 カーノレ部 52 Carnore

Claims

請求の範囲 The scope of the claims
[1] 上向きに拡開した円錐状の本体部の上縁部に外向きに卷込まれて形成されたカー ル部を有する紙製容器を覆うための蓋であって、該蓋は主体が紙製であり、前記紙 製容器の円錐状の本体部の内面に係合する円錐状外面を有する壁面部と、該壁面 部の上縁部に外向きに卷込まれて形成された蓋カール部と、前記壁面部の内部に 設けられた天蓋部とからなり、前記壁面部が扇形のブランクから形成された円錐状で あり、前記天蓋部は円形のブランク力 形成され前記側壁部の下縁部より上位に位 置するよう固定されて ヽることを特徴とする紙製容器用の紙製蓋。  [1] A lid for covering a paper container having a curl portion formed by being swung outwardly into an upper edge portion of a conical main body portion that is expanded upward, A wall surface portion made of paper and having a conical outer surface engaged with an inner surface of the conical body portion of the paper container, and a lid curl formed by being squeezed outwardly into an upper edge portion of the wall surface portion And a canopy portion provided inside the wall surface portion, wherein the wall surface portion is a conical shape formed from a fan-shaped blank, and the canopy portion is formed with a circular blank force and has a lower edge of the side wall portion. A paper lid for a paper container, characterized in that it is fixed so as to be placed higher than the section.
[2] 前記天蓋部は円形のブランクの周縁が折返されて側壁部に貼着されていることを特 徴とする請求項 1に記載の紙製容器用の紙製蓋。  [2] The paper lid for the paper container according to [1], wherein a peripheral edge of a circular blank is folded and attached to the side wall portion.
[3] 上向きに拡開した円錐状の本体部の上縁部に外向きに卷込まれて形成されたカー ル部を有する紙製容器を覆うための蓋であって、該蓋は主体が紙製であり、前記紙 製容器の円錐状の本体部の内面に係合する円錐状外面を有する壁面部と、該壁面 部の上縁部に外向きに卷込まれて形成された蓋カール部と、前記壁面部の内部に 設けられた天蓋部とからなり、前記壁面部が該壁面部を前記紙製容器の本体部に密 係合させるストツバ処理を施されており、前記天蓋部が該下縁部より上位に位置する よう固定されて ヽることを特徴とする紙製容器用の紙製蓋。  [3] A lid for covering a paper container having a curl portion formed by being swung outwardly into an upper edge portion of a conical main body portion that is expanded upward, A wall surface portion made of paper and having a conical outer surface engaged with an inner surface of the conical body portion of the paper container, and a lid curl formed by being squeezed outwardly into an upper edge portion of the wall surface portion And a canopy portion provided inside the wall surface portion, and the wall surface portion is subjected to a stapling process for tightly engaging the wall surface portion with the main body portion of the paper container. A paper lid for a paper container, wherein the paper lid is fixed so as to be positioned above the lower edge.
[4] 前記ストツバ処理として前記壁面部に滑り止め加工がされていることを特徴とする請 求項 3に記載の紙製容器用の紙製蓋。  [4] The paper lid for the paper container according to claim 3, wherein the wall surface portion is subjected to anti-slip processing as the stapling treatment.
[5] 前記ストッパ処理として前記壁面部にエンボスカ卩ェがされていることを特徴とする請 求項 3に記載の紙製容器用の紙製蓋。  [5] The paper lid for the paper container according to claim 3, wherein the wall surface is embossed as the stopper treatment.
[6] 上向きに拡開した円錐状の本体部の上縁部に外向きに卷込まれて形成されたカー ル部を有する紙製容器を覆うための蓋であって、該蓋は主体が紙製であり、前記紙 製容器の円錐状の本体部の内面に係合する円錐状外面を有する壁面部と、該壁面 部の上縁部に外向きに卷込まれて形成された蓋カール部と、前記壁面部の内部に 設けられた天蓋部とからなり、前記天蓋部が該下縁部より上位に位置するよう固定さ れているとともに該天蓋部の中央部分を上向きに突出させていることを特徴とする紙 製容器用の紙製蓋。 [6] A lid for covering a paper container having a curl portion formed by being swung outwardly into an upper edge portion of a conical main body portion that is expanded upward, A wall surface portion made of paper and having a conical outer surface engaged with an inner surface of the conical body portion of the paper container, and a lid curl formed by being squeezed outwardly into an upper edge portion of the wall surface portion And a canopy portion provided inside the wall surface portion, the canopy portion is fixed so as to be positioned higher than the lower edge portion, and the central portion of the canopy portion protrudes upward. A paper lid for a paper container.
[7] 前記天蓋部は周縁が折返された円形のブランクからなり、前記壁面部の下縁部を折 曲げて該天蓋部の折返された周縁に貼着されて!ヽることを特徴とする請求項 1、 3〜 6の何れか 1項に記載の紙製容器用の紙製蓋。 [7] The canopy portion is made of a circular blank with its peripheral edge folded, and is bent and attached to the folded peripheral edge of the canopy portion by bending the lower edge portion of the wall surface portion. A paper lid for a paper container according to any one of claims 1 and 3-6.
[8] 上向きに拡開した円錐状の本体部の上縁部に外向きに卷込まれて形成されたカー ル部を有する紙製容器を覆うための蓋であって、該蓋は主体が紙製であり、前記紙 製容器の円錐状の本体部の内面に係合する円錐状外面を有する壁面部と、該壁面 部の上縁部に外向きに卷込まれて形成された蓋カール部と、周縁が前記壁面部の 上縁部に形成された蓋カール部に貼着された天蓋部とからなることを特徴とする紙製 容器用の紙製蓋。  [8] A lid for covering a paper container having a curl portion that is formed by being swung outwardly into an upper edge portion of a conical main body portion that is expanded upward, A wall surface portion made of paper and having a conical outer surface engaged with an inner surface of the conical body portion of the paper container, and a lid curl formed by being squeezed outwardly into an upper edge portion of the wall surface portion A paper lid for a paper container, characterized in that it comprises a portion and a canopy portion attached to a lid curl portion whose peripheral edge is formed on an upper edge portion of the wall surface portion.
[9] 前記天蓋部は紙の上に榭脂被膜が形成され、または撥水剤が塗布されて 、ることを 特徴とする請求項 1〜8の何れか 1項に記載の紙製容器用の紙製蓋。  [9] The paper container according to any one of [1] to [8], wherein the canopy portion has a resin film formed on paper or a water repellent applied thereto. Paper lid.
[10] 前記天蓋部に空気抜き用の小孔が形成されていることを特徴とする請求項 1〜9の 何れか 1項に記載の紙製容器用の紙製蓋。  10. The paper lid for a paper container according to any one of claims 1 to 9, wherein a small hole for venting air is formed in the canopy portion.
[11] 前記天蓋部がストロー挿入用の穴または該穴を形成するための切込みを有すること を特徴とする請求項 1〜10の何れか 1項に記載の紙製容器用の紙製蓋。  11. The paper lid for a paper container according to any one of claims 1 to 10, wherein the canopy portion has a hole for inserting a straw or a notch for forming the hole.
PCT/JP2006/305938 2006-03-24 2006-03-24 Paper-made lid for paper-made container WO2007110897A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Country Link
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013034289A1 (en) * 2011-09-07 2013-03-14 Feldmann+Schultchen Design Studios Gmbh Drinking‑cup lid with sealing periphery
NL2012526A (en) * 2014-03-28 2016-01-08 Tupak B V Cardboard packing, as well as a method for manufacturing of a cardboard cap.
US9345350B2 (en) 2011-09-15 2016-05-24 Feldmann + Schultchen Design Studios GmbH Drinking cup made of foldable flat material
CN110857159A (en) * 2018-08-25 2020-03-03 杭州联元金属制品有限公司 Conveniently-extracted serving tray and manufacturing die and manufacturing process thereof
US10582787B2 (en) 2012-08-22 2020-03-10 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
CN111196055A (en) * 2018-11-16 2020-05-26 山田菊夫 Paper cover
US20210053727A1 (en) * 2019-08-20 2021-02-25 Huhtamaki, Inc. Lid for a container
RU2767119C1 (en) * 2018-11-16 2022-03-16 Кикуо ЯМАДА Paper lid and the method for making a paper lid
USD1035446S1 (en) 2022-11-18 2024-07-16 Reynolds Presto Products Inc. Container with lid

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013034289A1 (en) * 2011-09-07 2013-03-14 Feldmann+Schultchen Design Studios Gmbh Drinking‑cup lid with sealing periphery
US9345350B2 (en) 2011-09-15 2016-05-24 Feldmann + Schultchen Design Studios GmbH Drinking cup made of foldable flat material
US10582787B2 (en) 2012-08-22 2020-03-10 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
US11497330B2 (en) 2012-08-22 2022-11-15 Ptm Packaging Tools Machinery Pte. Ltd. Paper-based container lids and methods for making the same
NL2012526A (en) * 2014-03-28 2016-01-08 Tupak B V Cardboard packing, as well as a method for manufacturing of a cardboard cap.
CN110857159A (en) * 2018-08-25 2020-03-03 杭州联元金属制品有限公司 Conveniently-extracted serving tray and manufacturing die and manufacturing process thereof
CN111196055A (en) * 2018-11-16 2020-05-26 山田菊夫 Paper cover
RU2767119C1 (en) * 2018-11-16 2022-03-16 Кикуо ЯМАДА Paper lid and the method for making a paper lid
CN111196055B (en) * 2018-11-16 2024-01-30 山田菊夫 Paper cover
US20210053727A1 (en) * 2019-08-20 2021-02-25 Huhtamaki, Inc. Lid for a container
USD1035446S1 (en) 2022-11-18 2024-07-16 Reynolds Presto Products Inc. Container with lid

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