EP2876056A1 - Airtight container lid assembly - Google Patents

Airtight container lid assembly Download PDF

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Publication number
EP2876056A1
EP2876056A1 EP12881511.5A EP12881511A EP2876056A1 EP 2876056 A1 EP2876056 A1 EP 2876056A1 EP 12881511 A EP12881511 A EP 12881511A EP 2876056 A1 EP2876056 A1 EP 2876056A1
Authority
EP
European Patent Office
Prior art keywords
lid
airtight container
lid body
edge
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12881511.5A
Other languages
German (de)
English (en)
French (fr)
Inventor
Sang Man Im
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2876056A1 publication Critical patent/EP2876056A1/en
Withdrawn legal-status Critical Current

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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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/08—Removable lids or covers having a peripheral flange fitting over the rim of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/16—Snap-on caps or cap-like covers
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
    • B65D45/20—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped pivoted

Definitions

  • the present invention relates to a lid assembly for an airtight container, and more particularly to a lid assembly for an airtight container to which a locking function is applicable so as to store food with safety without a leakage of smell or moisture.
  • a conventional airtight container includes a container body having an opened upper portion, and a lid having locking blades for opening and closing the container body.
  • the container body is injection-molded with synthetic resin to have a square or cylindrical shape, and has a storage space defined therein.
  • a hooking protrusion for hooking each of the locking blades protrudes to be provided at an opened end portion of a side wall of the container body.
  • the locking blades are integrally formed along an edge of the lid so as to turn outward, and each is provided with a hooking jaw hooked by the hooking protrusion.
  • the hooking jaw is elastically coupled to the hooking protrusion of the container body so that the lid is securely locked thereto.
  • restriction of the hooking jaw is released so that the lid is opened.
  • the conventional airtight container has a disadvantage in that the container body made of synthetic resin (PP) is easily discolored by contents stored therein. In recent years, the purchasing power of products is lowered due to a negative image about peculiar environmental hormone of synthetic resin.
  • the container body and the lid are made of polypropylene (referred to as "PP") which is thermoplastic resin obtained by polymerization of propylene, and such polypropylene has high ductility and low transparency.
  • Tritan resin having high transparency without inducing environmental hormone is also used.
  • the Tritan resin is an advanced eco-friendly material which is newly developed by Eastman Chemical Company, U.S. global company, and refers to a pure polyesert material to which bisphenol-A (BPA) as a suspected environmental hormone substance and a harmful plasticizer to the human body are not added. Since the Tritan resin has all of an advantage of plastic and an advantage (transparency) of glass, the Tritan resin is used for an airtight container product. However, the Tritan resin has high transparency and low ductility, and is thus not applied to a lid product having locking blades. That is, when a lid product integrally formed with locking blades which are repeatedly folded and used is made of Tritan resin, a snap-hinge portion of each locking blade is easily damaged.
  • a container product in which a container body is made of a Tritan resin material and a lid having locking blades is made of a polypropylene (PP) material has been recently released.
  • PP polypropylene
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a lid assembly for an airtight container in which an airtight container product may be directed in various manners by having an improved lid assembly such that a lid body and locking blade portions are integrally formed of different materials.
  • Tritan resin which has high transparency and is an eco-friendly material may be effectively applied to the lid assembly for an airtight container.
  • Another object of the present invention is to provide a lid assembly for an airtight container in which an advanced Tritan material having all advantages of plastic and glass may be applied to an airtight container lid and locking blades requiring ductility may be integrated with each other so as to realize a locking function.
  • the lid assembly is formed of Tritan resin having advantages of plastic and glass and then a lid-flange member having locking blades is integrated with the lid assembly, thereby enabling an airtight container product to be directed by different materials in various manners.
  • the Tritan resin which has high transparency and is an eco-friendly material may be effectively applied to the lid assembly.
  • the advanced Tritan resin having all advantages of plastic and glass may be applied to an airtight container lid and the locking blades requiring ductility may be integrated with each other so as to realize a locking function.
  • various colors are applied to the lid-flange member configured by the locking blades and thus the airtight container product may be distinguished.
  • lid assembly 210 lid body 221: inside hooking jaw 222: outside hooking jaw 223: flange 224: snap-hinge 225: locking jaw 226: locking blade 230: silicon packing
  • a lid assembly of an airtight container 200 may open and close an airtight container 100 by applying a locking function to the airtight container 100 having a hooking protrusion 110 which is provided in an outward flange form on an opened upper edge.
  • the lid assembly 200 includes a lid body 210 which is injection-molded with synthetic resin so as to cover an upper portion of the airtight container 100, a lid-flange member 220 which is formed of synthetic resin along an edge of the lid body 210 to surround the same and has a plurality of locking blades 226 integrally formed with the edge, and a silicon packing 230 arranged along a lower surface edge of the lid body 210.
  • the lid assembly 200 is configured such that the lid body 210 and the lid-flange member 220 are integrally formed of different materials which are not fused with each other. To this end, a detailed structure of each component is as follows.
  • the lid body 210 is injection-molded with synthetic resin so as to the upper portion of the airtight container 100, and has a slot-shaped embedded groove 211 provided in a band form along an upper surface edge thereof and a packing groove 212 provided in a band form along the lower surface edge thereof.
  • the lid body 210 has a shape capable of substantially covering the upper portion of the airtight container 100 in a dome form, and Tritan resin as an advanced eco-friendly material is applied to the lid body 210.
  • the Tritan resin having all advantages of plastic and glass may be applied to the lid body 210 since the locking blades 226 requiring ductility are separately formed as described later.
  • the lid-flange member 220 is formed of polypropylene resin such that each snap-hinge portion 224 may have high ductility.
  • the lid-flange member 220 is formed after the lid body 210 primarily formed of Tritan resin is inserted and arranged in a secondary injection mold.
  • the lid-flange member 220 undergoes contraction change of approximately 12/1000 in a hardening process after formation thereof due to material characteristics. Through such contraction change, the flange 223 of the lid-flange member 220 is reliably integrated to the edge portion of the lid body 210 without a separate adhesive member.
  • the silicon packing 230 (see FIG. 3 ) is received and installed in the packing groove 212 of the lid body 210 so as to come into close contact with the opened upper portion of the airtight container 100, as described above. Consequently, the silicon packing 230 may seal the airtight container 100.
  • the lid assembly 200 may be configured as follows, so as to have the above structure.
  • the lid body 210 is primarily formed of an eco-friendly Tritan material having advantages of plastic and glass and then inserted and arranged in the injection mold for the lid-flange member 220
  • the lid-flange member 220 is formed of polypropylene resin such that each snap-hinge portion 224 may have high ductility. Consequently, the lid body 210 and the locking blades 226 may be manufactured by different materials.
  • the product of the lid assembly 200 of the airtight container 100 may be directed in more various manners.
  • the Tritan resin which has high transparency and is an eco-friendly material may be effectively applied to the lid assembly 200.
  • the advanced Tritan material may be applied to the lid assembly 200 of the airtight container 100 and the locking blades 226 requiring ductility may be integrated with each other so as to realize a locking function.
  • the lid assembly 200 when the lid assembly 200 according to the embodiment of the present invention covers the upper portion of the airtight container 100, the opened upper edge of the airtight container 100 comes into contact with the silicon packing 230 arranged on the lower surface edge of the lid body 210.
  • the locking jaws 225 of the locking blades 226 are elastically deformed and decoupled from the hooking protrusion 110.
  • the locked state by the locking blades 226 is released so that the airtight container 100 may easily opened.
  • the lid assembly for an airtight container has been described to have a circular shape in the embodiment, the present invention is not limited thereto.
  • the technical idea of the present invention may be applied to a lid assembly having a square shape or a rectangular shape.
  • Various embodiments have been described in the best mode for carrying out the invention.
  • the present invention may be widely used in the field of a lid assembly for an airtight container for sealing an upper portion of an airtight container storing food.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP12881511.5A 2012-07-19 2012-10-12 Airtight container lid assembly Withdrawn EP2876056A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120078821A KR101186260B1 (ko) 2012-07-19 2012-07-19 밀폐용기용 뚜껑 조립체
PCT/KR2012/008327 WO2014014160A1 (ko) 2012-07-19 2012-10-12 밀폐용기용 뚜껑 조립체

Publications (1)

Publication Number Publication Date
EP2876056A1 true EP2876056A1 (en) 2015-05-27

Family

ID=47114166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12881511.5A Withdrawn EP2876056A1 (en) 2012-07-19 2012-10-12 Airtight container lid assembly

Country Status (7)

Country Link
US (1) US20150203264A1 (pt)
EP (1) EP2876056A1 (pt)
JP (1) JP2015525715A (pt)
KR (1) KR101186260B1 (pt)
CN (1) CN104487358A (pt)
BR (1) BR112015000567A2 (pt)
WO (1) WO2014014160A1 (pt)

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JP6226237B2 (ja) * 2014-03-31 2017-11-08 株式会社吉野工業所 合成樹脂成形品及びその成形方法
KR101510393B1 (ko) * 2014-05-01 2015-04-09 임상만 밀폐용기용 뚜껑 조립체
US9820616B2 (en) 2015-03-06 2017-11-21 Wki Holding Company, Inc. Securable food storage container assembly
USD805019S1 (en) * 2015-05-15 2017-12-12 Dometic Sweden Ab Accessory base
USD805458S1 (en) * 2015-05-15 2017-12-19 Dometic Sweden Ab Accessory base
KR20170023617A (ko) * 2015-08-24 2017-03-06 동아정밀공업(주) 패킹이 구비된 밀폐용기 뚜껑
US20190047753A1 (en) * 2016-03-07 2019-02-14 Hreeway Technology Co., Ltd Storage container
USD856798S1 (en) 2017-11-03 2019-08-20 Eli Lilly & Company Container assembly
KR20220137147A (ko) 2019-03-29 2022-10-11 일라이 릴리 앤드 캄파니 약제 전달 시스템 및 방법
KR102240235B1 (ko) * 2020-07-20 2021-04-13 김성수 내용물의 확인이 용이한 수납용기 뚜껑
CN114148607B (zh) * 2021-11-23 2022-08-16 江林（贵州）高科发展股份有限公司 一种防止果皮白霜破损的生物可降解气调保鲜盒

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Also Published As

Publication number Publication date
WO2014014160A1 (ko) 2014-01-23
CN104487358A (zh) 2015-04-01
JP2015525715A (ja) 2015-09-07
KR101186260B1 (ko) 2012-09-27
BR112015000567A2 (pt) 2017-09-19
US20150203264A1 (en) 2015-07-23

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