US20070017845A1 - Package with retainment means - Google Patents

Package with retainment means Download PDF

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Publication number
US20070017845A1
US20070017845A1 US10/574,956 US57495606A US2007017845A1 US 20070017845 A1 US20070017845 A1 US 20070017845A1 US 57495606 A US57495606 A US 57495606A US 2007017845 A1 US2007017845 A1 US 2007017845A1
Authority
US
United States
Prior art keywords
bottom part
cover part
package
upper rim
rim portion
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.)
Abandoned
Application number
US10/574,956
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English (en)
Inventor
Hanka Tietschert
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.)
Brodrene Hartmann AS
Original Assignee
Brodrene Hartmann AS
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 Brodrene Hartmann AS filed Critical Brodrene Hartmann AS
Assigned to BRODRENE HARTMANN A/S reassignment BRODRENE HARTMANN A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TIETSCHERT, HANKA
Publication of US20070017845A1 publication Critical patent/US20070017845A1/en
Abandoned 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324—Containers with compartments made of pressed material

Definitions

  • the present invention relates to packages of the kind set forth in the preamble of claim 1 and more particularly to retainment means for preventing unintentional opening of a cover part of such packages.
  • Packages of the above kind i.e. packages formed by suction moulding of a fibrous material for receiving one or more frangible products to be packed, for instance eggs
  • packages are well-known within the art.
  • Such packages generally comprise a bottom part provided with a pattern of pocket-like compartments for accommodating the eggs and a cover part, which is often hingedly connected to the bottom part so that it can be swung between a closed and an open position.
  • Most such packages are furthermore provided with retainment means for releasably retaining the cover part in its closed position on the bottom part and a large number of different retainment means for this purpose has been described.
  • retainment means are for instance disclosed in U.S. Pat. No. 4,782,995 and U.S. Pat. No. 5,860,528 and common for these means—and corresponding retainment means known from many other packages of the present kind—is the provision of dedicated retainment members on either cover part, bottom part or on both parts.
  • a comparatively simple type of retainment means is described in EP 1 098 826 B1, said means comprising openings in the vicinity of the edge region of the front face of the cover part provided for releasable retainment with corresponding outwardly extending projecting members located on the bottom part.
  • a package formed by a suction moulding of a fibrous material for receiving one or more frangible products, such as eggs, comprising the following main parts:
  • said inwardly extending protrusions for engagement with the upper rim portion of the bottom part is advantageous in that these protrusions are consequently placed further away from the free edge portion of the cover part, i.e. at positions of the cover part where the overall rigidity of the cover part is greater than in the vicinity of the free edge portion hereof.
  • the lateral cross sectional shape of the cover part becomes modified relative to the corresponding cross sectional shape of a cover part, in which the hinge portion was located at the rim portion, this modification in itself yielding an increased lateral rigidity of the cover part and hence a more secure retainment of the cover part to the bottom part.
  • this positioning of the hinge portion is advantageous in that it allows the retainment protrusion(s) on the cover part to swing into its/their retaining position underneath the upper rim portion running along the upper edge region of the bottom part with only a slight deformation of the material of these corresponding retainment portions during closing and opening of the package.
  • the package is preferably made of moulded pulp, although other materials of suitable resiliency could also be envisaged.
  • the present invention takes advantage of the presence on the bottom part of said upper rim portion or upper rim portions running along the upper edge region of the bottom part and extending outwards from the bottom part
  • Such flange-like upper rim portions on the bottom part of packages of the kind dealt with in the present context are well known for instance from the above-mentioned documents and form a part of the bridging structure connecting the different pockets in the bottom part of egg trays, etc.
  • this feature i.e. the flange-like upper rim portion of the bottom part, can in an advantageous manner be utilised as one of the complementary retainment means mentioned above, the cover part being provided with suitable complementary protrusions, which during closing of the package are brought into retaining engagement with said upper rim portion.
  • a specific embodiment of this mechanism is described in the detailed description of the invention.
  • the above-mentioned protrusion or protrusions of the cover part can in principle be positioned on the cover part at such positions that it/they is/are brought into engagement with said upper rim portion of the bottom part anywhere along this edge portion.
  • the edge portion typically only extends outwardly from the corresponding portion of the bottom part over a very limited distance in those regions of the bottom part, where the edge portion runs along the pockets in the bottom part it might, however, be advantageous to place the protrusions on the cover part such that during closing of the package they are brought into engagement with the upper rim portion of the bottom part in the regions between adjacent pockets.
  • the retainment means according to the present invention offers a simple and yet reliable solution to the problem of an occasionally unreliable retainment of the cover part to the bottom part of the package.
  • one of the complementary retainment means i.e. the protrusions
  • one of the complementary retainment means necessarily becomes located further away from the lowermost edge region of the front surface of the cover part than in the package disclosed in EP 1 098 826 B1, i.e. in a region of the cover part with less transversal compliance (increased rigidity) than the corresponding retainment means in the cover part of the package according to EP 1 098 826 B1.
  • a package formed by suction moulding of a fibrous material for receiving one or more frangible products to be packed, such as eggs, comprising:
  • bottom part adjacent said upper rim portion is provided with at least one outwardly extending protrusion for locking engagement with co-operating means provided on the cover part and where said hinge ( 5 ) is positioned above the level of the upper rim portion ( 6 ) of the bottom part ( 2 ).
  • co-operating means on the cover part of this embodiment is one or more openings in the front surface of the cover part, although other equivalent means may also be envisaged be a person skilled in the art.
  • FIG. 1 is a perspective view of an embodiment of a package shown in its open state and provided with mutually corresponding retainment means according to the present invention for retainment of the cover part to the bottom part of the package when the package is in the closed state;
  • FIG. 2A is a first perspective view of a preferred embodiment of a package provided with retainment means according to the present invention
  • FIG. 2B is a second perspective view of the preferred embodiment of a package shown in FIG. 2A and provided with retainment means according to the present invention
  • FIG. 2C is a perspective view of an embodiment of a package provided with retainment means according to the invention.
  • FIG. 3 is a side elevational view of a package in the open state and provided with retainment means according to the present invention
  • FIG. 4 is another and more preferred package provided with retainment means according to the present invention.
  • FIG. 5 is a perspective view of a package provided with additional retainment flaps according to the present invention.
  • FIG. 1 there is shown a package 1 for eggs comprising bottom parts 2 and cover parts 3 hingedly connected to each other by a hinge portion 5 .
  • the cover part 3 comprises a substantially planar top surface 16 and a substantially planar frontal side 4 which in the closed state of the package extends downwardly substantially over the entire height of the bottom part 2 , i.e. down to the bottom level as indicated by reference numeral 15 in FIGS. 1 and 3 .
  • the bottom part 2 of the package shown in FIG. 1 comprises a total of 12 pockets for eggs, generally designated by 12 .
  • an upper flange-like rim portion 6 defining the upper level of the bottom part itself. Elevated above this level, a hinge portion 5 connecting the bottom part 2 and the cover part 3 is situated.
  • the upper flange-like rim portion 6 extends a few millimetres outwardly from the egg pockets 12 and bridges the gaps 13 formed between adjacent egg pockets.
  • These bridging portions of the upper rim portion 6 are designated 6 ′ in the figures and the lower surface of one or more of these bridging portions 6 ′ can advantageously be used as one of the mutually corresponding retainment means according to the present invention in a manner to be described below.
  • the inner surface of the frontal side 4 of the cover part 3 is according to this embodiment of the invention provided with inwardly extending protrusions 7 , the engagement surface 8 of which facing the top surface 16 of the cover part being substantially planar although other shapes of this surface—and of the protrusions 7 generally—would also be possible.
  • the innermost part of the protrusions 7 passes over the corresponding outermost part of the upper flange-like rim portion 6 , this being possible due to the resiliency of the frontal side 4 , and the protrusions 7 enter the gap 13 under the corresponding bridging portion 6 ′, whereby the engagement surface 8 of the protrusions enters into retaining engagement with the lower surface of the bridging portion 6 ′ and retain the cover part 3 to the bottom part 2 .
  • the frontal side 4 of the cover part 3 is pulled in an outward direction, whereby the engagement between the protrusions 7 and the corresponding bridging portions 6 ′ can be released.
  • FIGS. 2A and 2B there is shown a preferred embodiment of a package comprising retainment means according to the invention.
  • This package is specifically designed to accommodate two rows of five eggs and comprises a single bottom part 2 and corresponding cover part 3 .
  • the package shown in FIGS. 2A and 2B comprises both the retaining protrusions 7 on the cover part and additionally the retainer means 10 , 11 known from the initially cited European Patent No. 1 098 826.
  • the upper rim portion 6 of the bottom part 2 is provided with retainment flaps 25 A and 25 B for engagement with the corresponding protrusions 7 and the openings 10 , respectively, provided on the cover part 3 .
  • These pairs of retainment flaps 25 A, 25 B are shown in FIG. 2B .
  • FIG. 2C an embodiment of a package is shown which only comprises the retainment protrusions 7 on the cover part 3 and the corresponding flaps 25 A on the upper rim portion of the bottom part.
  • This embodiment of a package is thus not provided with the retainment means known from the initially cited European Patent No. 1 098 826.
  • FIG. 3 there is shown a side elevational view of the package shown in FIG. 1 .
  • FIG. 4 A side elevational view of an alternative package is shown in FIG. 4 , in which the rounded edge portion 17 of the package shown in FIG. 3 has been replaced by a substantially planar edge region 20 longitudinally bounded by edge portions 18 and 19 .
  • the protrusion is in this case located in the vicinity of the edge portion 19 .
  • the bottom part 2 and the cover part 3 are furthermore—as an option—provided with those retainment means already known from the initially cited European Patent No. 1 098 826.
  • the prime advantage of the retainment means according to the present invention becomes apparent by a comparison between the retainment means disclosed in EP 1 098 826 and those of the present invention.
  • the retainment means according to EP 1 098 826 comprises one or more rectangular holes 10 in the frontal side 4 and corresponding projections 11 placed on one or more of the pockets 12 of the bottom part 2 . As apparent from FIGS. 3 and 4 , these projections terminate downwardly in inclined portions 22 and when the cover part 3 is closed, a retaining engagement is established between these inclined portions 22 and the corresponding edge portion 23 of the hole in the frontal side 4 .
  • the projections only project a few millimetres—typically approximately 3 mm—outwards from the corresponding surface of the pocket 12 and a reliable retainment by these means requires that the frontal side 4 be substantially plane and not exhibiting an outwardly arched shape relative to the bottom part 2 . In practice, this requirement is not always fulfilled, and this has turned out to cause problems both during the packing process and in shops, where packages tend to open. These problems are solved by the retainment means according to the present invention.
  • FIG. 5 there is shown an embodiment of retainment means as set forth in the invention according to which the flange-like upper edge 6 of the bottom part 2 is additionally provided with outwardly extending retainment flaps 25 .
  • Such flaps can—as described above—as one possibility be placed at the portions of the upper edge 6 corresponding to the positions of the retainment openings 10 in the cover part 3 , in which case they can serve as a supplementary retainment means to the retainment means provided by the openings 10 and the corresponding projections 11 on the bottom part 2 , to the effect that when the engagement between the openings 10 and the projections 11 is released, the cover part will still be prevented from completely opening due to a subsequent engagement between the openings 10 and the corresponding flaps 25 .
  • the retainment flaps 25 may serve as a reinforcement of the engagement between the protrusions 7 on the cover part 3 and this portion 6 ′ of the upper edge 6 of the bottom part 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Frangible Articles (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closures For Containers (AREA)
US10/574,956 2003-10-08 2004-09-07 Package with retainment means Abandoned US20070017845A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA200301483 2003-10-08
DKPA200301483 2003-10-08
PCT/IB2004/051701 WO2005035392A1 (fr) 2003-10-08 2004-09-07 Emballage pourvu de moyens de retenue

Publications (1)

Publication Number Publication Date
US20070017845A1 true US20070017845A1 (en) 2007-01-25

Family

ID=34429206

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/574,956 Abandoned US20070017845A1 (en) 2003-10-08 2004-09-07 Package with retainment means

Country Status (9)

Country Link
US (1) US20070017845A1 (fr)
EP (2) EP1558504B1 (fr)
JP (1) JP2007508207A (fr)
CN (1) CN1863717A (fr)
AT (2) ATE503705T1 (fr)
CA (1) CA2541375A1 (fr)
DE (2) DE602004032069D1 (fr)
RU (1) RU2006115585A (fr)
WO (1) WO2005035392A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110132791A1 (en) * 2008-06-03 2011-06-09 Huhtamaki Nederland B.V. Packaging unit
US20140042169A1 (en) * 2011-02-22 2014-02-13 Brødrene Hartmann A/S Egg Package
US20210163198A1 (en) * 2016-10-03 2021-06-03 Huhtamaki Molded Fiber Technology B.V. Biodegradable and compostable food packaging unit from a moulded pulp material, and method for manufacturing such food packaging unit
US11225365B2 (en) 2007-02-12 2022-01-18 Maurice Joseph Paul Tabone Container base and lid with planar area for flat application of adhesive membrane
US20230294899A1 (en) * 2019-09-26 2023-09-21 West Liberty Foods, Llc Food product packaging

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101850879B (zh) * 2009-04-01 2013-04-24 海尔集团公司 蛋盒
DE102010049016A1 (de) 2010-10-21 2012-04-26 Rudolf Linek Eierträger

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217963A (en) * 1963-09-30 1965-11-16 Molded Container Corp Molded pulp carton with latch post closure
US3531039A (en) * 1969-01-09 1970-09-29 Packaging Corp America Carton construction
US3550836A (en) * 1968-06-18 1970-12-29 Eugene E Macchi Egg carton
US3568916A (en) * 1969-04-04 1971-03-09 Sinclair Koppers Co Locking mechanisms for egg cartons
US3570747A (en) * 1969-01-08 1971-03-16 Packaging Ind Inc Carton and latch construction
US3813027A (en) * 1972-10-26 1974-05-28 Packaging Corp America Carton construction
US4240575A (en) * 1979-05-07 1980-12-23 Mobil Oil Corporation Egg carton with crush resistant top
US4625906A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Eighteen cell hinged-cover carbon thermoformed from plastic sheet
US4742953A (en) * 1983-04-01 1988-05-10 Mobil Oil Corporation Hinged cover carton with inboard locking extensions
US4782995A (en) * 1983-11-07 1988-11-08 Emery Roy W Egg carton
US5860528A (en) * 1997-03-14 1999-01-19 Emery; Roy William Hinged container with separately moulded cover and tray
US6488152B1 (en) * 1998-07-17 2002-12-03 Brodrene Hartmann A/S Package
US7255231B2 (en) * 2003-12-31 2007-08-14 Pactiv Corporation Egg carton

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU406096B2 (en) * 1966-08-22 1970-09-18 Improved egg carton
GB1257792A (fr) * 1968-05-24 1971-12-22
NL7017943A (fr) * 1969-12-15 1971-06-17
DE8101054U1 (de) * 1981-01-17 1981-05-14 Transpack Verpackungs-Gesellschaft mbH, 2849 Goldenstedt Eierverpackung

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217963A (en) * 1963-09-30 1965-11-16 Molded Container Corp Molded pulp carton with latch post closure
US3550836A (en) * 1968-06-18 1970-12-29 Eugene E Macchi Egg carton
US3570747A (en) * 1969-01-08 1971-03-16 Packaging Ind Inc Carton and latch construction
US3531039A (en) * 1969-01-09 1970-09-29 Packaging Corp America Carton construction
US3568916A (en) * 1969-04-04 1971-03-09 Sinclair Koppers Co Locking mechanisms for egg cartons
US3813027A (en) * 1972-10-26 1974-05-28 Packaging Corp America Carton construction
US4240575A (en) * 1979-05-07 1980-12-23 Mobil Oil Corporation Egg carton with crush resistant top
US4625906A (en) * 1983-04-01 1986-12-02 Mobil Oil Corporation Eighteen cell hinged-cover carbon thermoformed from plastic sheet
US4742953A (en) * 1983-04-01 1988-05-10 Mobil Oil Corporation Hinged cover carton with inboard locking extensions
US4782995A (en) * 1983-11-07 1988-11-08 Emery Roy W Egg carton
US5860528A (en) * 1997-03-14 1999-01-19 Emery; Roy William Hinged container with separately moulded cover and tray
US6488152B1 (en) * 1998-07-17 2002-12-03 Brodrene Hartmann A/S Package
US7255231B2 (en) * 2003-12-31 2007-08-14 Pactiv Corporation Egg carton

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11225365B2 (en) 2007-02-12 2022-01-18 Maurice Joseph Paul Tabone Container base and lid with planar area for flat application of adhesive membrane
US20110132791A1 (en) * 2008-06-03 2011-06-09 Huhtamaki Nederland B.V. Packaging unit
US20140042169A1 (en) * 2011-02-22 2014-02-13 Brødrene Hartmann A/S Egg Package
US8991604B2 (en) * 2011-02-22 2015-03-31 Brødrene Hartmann A/S Egg package
US20210163198A1 (en) * 2016-10-03 2021-06-03 Huhtamaki Molded Fiber Technology B.V. Biodegradable and compostable food packaging unit from a moulded pulp material, and method for manufacturing such food packaging unit
US20230294899A1 (en) * 2019-09-26 2023-09-21 West Liberty Foods, Llc Food product packaging

Also Published As

Publication number Publication date
DE602004032069D1 (de) 2011-05-12
EP1558504B1 (fr) 2009-03-11
EP1558504A1 (fr) 2005-08-03
DE602004019878D1 (de) 2009-04-23
EP1995185A2 (fr) 2008-11-26
WO2005035392A1 (fr) 2005-04-21
CN1863717A (zh) 2006-11-15
CA2541375A1 (fr) 2005-04-21
RU2006115585A (ru) 2007-11-27
ATE425109T1 (de) 2009-03-15
EP1995185B1 (fr) 2011-03-30
ATE503705T1 (de) 2011-04-15
JP2007508207A (ja) 2007-04-05
EP1995185A3 (fr) 2008-12-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BRODRENE HARTMANN A/S, DENMARK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TIETSCHERT, HANKA;REEL/FRAME:018487/0656

Effective date: 20060320

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION