WO2022177022A1 - Couvercle - Google Patents

Couvercle Download PDF

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Publication number
WO2022177022A1
WO2022177022A1 PCT/JP2022/007199 JP2022007199W WO2022177022A1 WO 2022177022 A1 WO2022177022 A1 WO 2022177022A1 JP 2022007199 W JP2022007199 W JP 2022007199W WO 2022177022 A1 WO2022177022 A1 WO 2022177022A1
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WO
WIPO (PCT)
Prior art keywords
lid
container
wall portion
ring
wall part
Prior art date
Application number
PCT/JP2022/007199
Other languages
English (en)
Japanese (ja)
Inventor
裕一 内藤
宏 山本
伸生 衣袋
保夫 石塚
Original Assignee
日本製紙株式会社
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 日本製紙株式会社 filed Critical 日本製紙株式会社
Publication of WO2022177022A1 publication Critical patent/WO2022177022A1/fr

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Classifications

    • 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
    • B65D3/00—Rigid 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/06—Removable lids or covers having a peripheral channel embracing the rim of the container

Definitions

  • the present invention relates to a lid that is attached to and seals a container provided with a ring-shaped reinforcing rim protruding outward from the upper end of an opening that opens upward.
  • the container As a lidded container, the container is provided with a ring-shaped reinforcing rim that protrudes outward from the body wall by curling the upper end of the body wall toward the outside at the upper end of the opening that opens upward from the body wall.
  • a container with a lid is widely known in which a lid wall portion fitted to the outer side of the body wall portion of the container is provided with a ring-shaped concave portion that fits into the reinforcing edge of the container.
  • the lids of such lidded containers are mostly made of plastic because of their airtightness and ease of molding (see, for example, Patent Documents 1 and 2).
  • An object of the present invention is to provide a lid that is easy to attach to a container, easy to discard or recycle, and easy to manufacture.
  • the invention according to claim 1 is a lid that covers and seals a container provided with a ring-shaped reinforcing edge projecting outward from the upper end of an opening that opens upward, It comprises a lid top portion covering the opening of the container, and a lid wall portion externally fitted to the body wall portion of the container.
  • the cover wall portion is formed by bending an upper end of the upward close contact wall portion outward in an inverted U shape, and the cover wall portion is provided with the reinforcement. It is characterized in that it has a ring-shaped concave portion that fits with the rim, and that the lid top portion and the lid wall portion are formed by drawing from a sheet of paper material.
  • the lid top portion has an upward contact wall portion on the outer periphery thereof, which is fitted into the body wall portion of the container and can be brought into close contact with the inner surface of the body wall portion.
  • the lid when the lid is pushed down, the ring-shaped recess provided in the lid wall portion is widened by the reinforcing edge of the container, and the reinforcing edge enters the ring-shaped recess and the ring-shaped recess and the reinforcing edge are fitted.
  • the ring-shaped recess expands due to the expansion and contraction of the wrinkles generated in the lid wall portion including the ring-shaped recess when the lid is formed by drawing the paper material, and the expansion and contraction of the paper material itself.
  • the lid can be easily attached to the opening of the container.
  • top plate portion and the body portion fitting wall are formed by drawing from a sheet of paper material, they can be easily manufactured. Moreover, since the lid is made of paper, disposal and recycling can be easily performed.
  • the invention according to claim 2 is characterized in that the paper material according to claim 1 is water-resistant treated at least on the inner surface side.
  • the paper material is water-resistant at least on the inner surface side. It is possible to avoid the situation such as putting out.
  • the lid of the present invention it is easy to attach to a container, easy to discard and recycle, and easy to manufacture.
  • FIG. 2 is a partial longitudinal side view of a container using the lid shown in Fig. 1; 1. It is explanatory drawing which shows the process which closes the opening part of a container with the lid
  • FIG. 1 is a partial longitudinal side view showing the lid according to the present invention
  • FIG. 2 is a partial longitudinal side view of a container using the lid shown in FIG. 1
  • FIG. 3 is a process of closing the opening of the container with the lid shown in FIG. 4 is a partially enlarged longitudinal sectional view showing a state in which the opening of the container is closed with the lid shown in FIG.
  • the lid 1 of the present embodiment has a ring-shaped reinforcement projecting outward from the shell wall portion 2 by curling the upper end of the shell wall portion 2 outward at the upper end of the opening 3 opening upwardly of the shell wall portion 2 .
  • a lid 1 that covers a container 5 provided with a rim 4 and closes an opening 3 .
  • the lid 1 is composed of a lid top portion 6 covering the opening 3 of the container 5 and a lid wall portion 7 externally fitted to the body wall portion 2 of the container 5 .
  • the lid top portion 6 has, on its outer periphery, a cylindrical upward contact wall portion 8 that can be fitted into the body wall portion 2 of the container 5 and can be in close contact with the inner surface of the body wall portion 2 .
  • the lid wall portion 7 is formed by bending outward in an inverted U shape from the upper end of the upward contact wall portion 8 , and the lid wall portion 7 is bent in an inverted U shape and then further inwardly.
  • the ring-shaped concave portion 9 which is curled and fitted with a reinforcing edge 4 provided at the upper end of the opening 3 of the body wall portion 2 of the container 5 .
  • the ring-shaped recessed portion 9 is followed by a skirt portion 10 that spreads from the lower end of the ring-shaped recessed portion 9 in the downward obliquely outward direction.
  • the skirt portion 10 Since the skirt portion 10 is spread out by contacting the edge 4 and the reinforcement edge 4 slides on the inclined inner surface of the skirt portion 10, the skirt portion 10 can be easily spread as the skirt portion 10 spreads. Since the ring-shaped concave portion 9 is widened, it is possible to easily attach the lid 1 to the opening portion 3 of the container 5 . In addition, by providing the skirt portion 10, when the lid 1 is used in an automatic lid closing machine, process troubles during loading into the machine and removal in the lid closing process can be reduced.
  • the length of the skirt portion 10 is not particularly limited, it is preferably 1 mm or longer, more preferably 3 mm or longer, and even more preferably 5 mm or longer.
  • the upper limit is preferably 100 mm or less, more preferably 50 mm or less, and even more preferably 30 mm or less.
  • the lid 1 of this example is made of paper, and the paper material used in this example preferably has a longitudinal breaking elongation of 0.5 to 0.5 as specified in JIS P 8113 in order to facilitate draw molding, which will be described later. 4.5%, more preferably 1.0 to 4.0%, and the breaking elongation in the transverse direction is preferably 2.5 to 8.5%, more preferably 3.0 to 8.0%. 0%.
  • the longitudinal tensile strength specified in JIS P 8113 is preferably 3.0 to 30.0 kN/m, more preferably 5.0 to 28.0 kN/m, and the transverse tensile strength The strength is preferably 2.0-20.0 kN/m, more preferably 3.0-18.0 kN/m.
  • the paper material is water-resistant. It is sufficient that at least the inner surface of the paper material is subjected to the water-resistant treatment.
  • at least the inner surface of the paper material is laminated or coated with a thermoplastic resin layer to laminate a thermoplastic resin layer, paraffin, beeswax, silicone resin, fluorine resin, rosin-based sizing agent, alkyl
  • a thermoplastic resin layer to laminate a thermoplastic resin layer, paraffin, beeswax, silicone resin, fluorine resin, rosin-based sizing agent, alkyl
  • waterproofing agents such as ketene dimer and wet paper strength agents, and waterproofing agents including styrene-based resins, acrylic-based resins, polyolefin-based resins, and the like.
  • the upward contact wall portion 8 provided in the lid top portion 6, the inverted U-shaped bending forming the lid wall portion 7, the ring-shaped concave portion 9 provided in the lid wall portion 7, and the The hakama part 10 is formed by drawing from a sheet of paper material.
  • the paper material used has a longitudinal breaking elongation of 0.5 to 4.5%, a transverse breaking elongation of 2.5 to 8.5%, and a longitudinal tensile strength of 3.0.
  • the lid top portion 6 has an upward close contact wall portion 8 that can be fitted into the body wall portion 2 of the container 5 and can be brought into close contact with the inner surface of the body wall portion 2 . Therefore, by pushing down the lid 1 with the inner surface side of the lid top portion 6 facing the opening portion 3 of the container 5, the upward close contact wall portion 8 of the lid top portion 6 is tightly fitted into the container 5, and the container is closed. The opening 3 of 5 can be reliably sealed.
  • the ring-shaped recess 9 provided in the lid wall portion 7 is widened by the reinforcing edge 4 of the container 5, and the reinforcing edge 4 enters the ring-shaped recess 9.
  • the ring-shaped recess 9 and the reinforcing edge 4 are fitted.
  • the ring-shaped recess 9 expands due to the expansion and contraction of the wrinkles generated in the lid wall portion 7 including the ring-shaped recess 9 when the lid 1 is formed by drawing the paper material, and the expansion and contraction of the paper material itself.
  • the ring-shaped concave portion 9 can be easily widened, and fitting with the reinforcing edge 4 can be easily performed.
  • the lid 1 is formed from a sheet of paper material, and includes an upward contact wall portion 8 on the lid top portion 6, an inverted U-shaped bent to form the lid wall portion 7, and a ring shape on the lid wall portion 7. Since the concave portion 9 and the skirt portion 10 are formed by draw molding, they can be easily manufactured, and since they are made of paper, disposal and recycling can be easily performed.
  • the paper material forming the lid 1 is a liquid, so that the liquid seeps out from the lid. can be done.

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

Abstract

En vue d'obtenir un couvercle qui peut facilement être monté sur un récipient, facilement jeté ou recyclé, et qui est facile à produire, un couvercle (1) destiné à recouvrir et à sceller un récipient (5), qui présente une bordure de renforcement en forme d'anneau faisant saillie vers l'extérieur (4) fournie à une extrémité supérieure d'une ouverture ouverte vers le haut (3), comprend : une partie supérieure de couvercle (6) qui recouvre l'ouverture (3) du récipient (5) ; et une partie de paroi de couvercle (7) qui est ajustée à l'extérieur sur une partie de paroi de cylindre (2) du récipient (5). La partie supérieure de couvercle (6) présente sur sa périphérie externe une partie de paroi de fixation proche vers le haut (8) qui est destinée à s'ajuster à l'intérieur de la partie de paroi de cylindre (2) du récipient (5) et qui est étroitement fixée à la surface intérieure de la partie de paroi de cylindre (2). La partie de paroi de couvercle (7) est formée de manière à être pliée en forme de U inversé vers l'extérieur à partir de l'extrémité supérieure de la partie de paroi de fixation proche vers le haut (8), et la partie de paroi de couvercle (7) présente, formé en son sein, un évidement annulaire (9) qui doit être ajusté sur la bordure de renforcement (4). La partie supérieure de couvercle (6) et la partie de paroi de couvercle (7) sont formées à partir d'une seule pièce de matériau de papier par moulage par étirage.
PCT/JP2022/007199 2021-02-22 2022-02-22 Couvercle WO2022177022A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-026757 2021-02-22
JP2021026757A JP2022128302A (ja) 2021-02-22 2021-02-22 蓋

Publications (1)

Publication Number Publication Date
WO2022177022A1 true WO2022177022A1 (fr) 2022-08-25

Family

ID=82932264

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/007199 WO2022177022A1 (fr) 2021-02-22 2022-02-22 Couvercle

Country Status (2)

Country Link
JP (1) JP2022128302A (fr)
WO (1) WO2022177022A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08156955A (ja) * 1994-12-05 1996-06-18 Tsuruoka Shigyo Kk 紙の蓋、その製法及びその製造装置
JP2007039093A (ja) * 2005-08-04 2007-02-15 Oji Paper Co Ltd 容器用紙蓋
US20130248481A1 (en) * 2010-11-30 2013-09-26 Huhtamaki Oyj Lid made of fibrous material
JP2019077475A (ja) * 2017-10-25 2019-05-23 株式会社日本デキシー 成形蓋、紙カップ
CN110844308A (zh) * 2019-12-19 2020-02-28 瑞安市贝斯特机械有限公司 一种防渗漏纸盖
WO2020049769A1 (fr) * 2018-09-04 2020-03-12 東罐興業株式会社 Couvercle en papier
WO2020141673A1 (fr) * 2019-01-03 2020-07-09 조인석 Procédé de fabrication de couvercle en papier de contenant jetable, et couvercle en papier de contenant jetable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08156955A (ja) * 1994-12-05 1996-06-18 Tsuruoka Shigyo Kk 紙の蓋、その製法及びその製造装置
JP2007039093A (ja) * 2005-08-04 2007-02-15 Oji Paper Co Ltd 容器用紙蓋
US20130248481A1 (en) * 2010-11-30 2013-09-26 Huhtamaki Oyj Lid made of fibrous material
JP2019077475A (ja) * 2017-10-25 2019-05-23 株式会社日本デキシー 成形蓋、紙カップ
WO2020049769A1 (fr) * 2018-09-04 2020-03-12 東罐興業株式会社 Couvercle en papier
WO2020141673A1 (fr) * 2019-01-03 2020-07-09 조인석 Procédé de fabrication de couvercle en papier de contenant jetable, et couvercle en papier de contenant jetable
CN110844308A (zh) * 2019-12-19 2020-02-28 瑞安市贝斯特机械有限公司 一种防渗漏纸盖

Also Published As

Publication number Publication date
JP2022128302A (ja) 2022-09-01

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