EP0888975A2 - Récipient - Google Patents

Récipient Download PDF

Info

Publication number
EP0888975A2
EP0888975A2 EP98305102A EP98305102A EP0888975A2 EP 0888975 A2 EP0888975 A2 EP 0888975A2 EP 98305102 A EP98305102 A EP 98305102A EP 98305102 A EP98305102 A EP 98305102A EP 0888975 A2 EP0888975 A2 EP 0888975A2
Authority
EP
European Patent Office
Prior art keywords
container
tab
slot
lid
base 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.)
Withdrawn
Application number
EP98305102A
Other languages
German (de)
English (en)
Other versions
EP0888975A3 (fr
Inventor
Alan Albert Haig
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.)
Linpac Packaging Ltd
Original Assignee
Linpac Plastics 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 Linpac Plastics Ltd filed Critical Linpac Plastics Ltd
Publication of EP0888975A2 publication Critical patent/EP0888975A2/fr
Publication of EP0888975A3 publication Critical patent/EP0888975A3/fr
Withdrawn legal-status Critical Current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
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/162—Non-removable lids or covers hinged for upward or downward movement the container, the lid and the hinge being made of one piece
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1016—Means for locking the closure in closed position

Definitions

  • This invention relates to containers and particularly, but not exclusively, to food containers such as are used in so-called 'burger bars' and other food take-away or carry out food outlets.
  • Containers for holding food such as burgers and the like, and other food items such as French fries etc. usually comprise a one-piece structure ⁇ consisting of a base portion and a lid or cover portion which is foldable over said base portion so as to overlie said base portion and to enclose a food item or items housed in said container.
  • closure means are provided on the container, such closure means usually being located on peripheral areas of the container.
  • the closure means usually comprise co-operating means located one each on the base portion and the lid or cover portion, such means usually interlocking or interengaging with each other to maintain the lid or cover in the closed position relative to the base portion.
  • tab and slot closures for containers comprise a tab on the base portion of the container and an elongate slot in the lid or cover portion of the container -or vice versa - the tab being-releasably engageable in said slot to secure the lid or cover portion to the base portion in a closed condition of the container.
  • the tab and slot are disposed symmetrically about a common centre line of said base portion and said lid or cover portion.
  • a standard test for assessing the strength of the tab and slot closure is its ability to carry a weight above its normal loading.
  • the test consists in placing a weight in the base portion of the container, securing the lid or cover portion in position relative to the base portion, and then lifting the whole container vertically by engagement of the lid or cover portion.
  • the present invention seeks to provide an improved container having a tab and slot closure which will obviate the disadvantages of known tab and slot closures.
  • the present invention provides a container comprising a base portion and a lid or cover portion and including a closure device for securing said lid or cover portion to said base portion in a closed condition of the container, said closure device comprising a tab on one of said portions and a co-operating slot in the other of said portions, said tab and/or said slot being located asymmetrically of a centre line of said container.
  • the tab will be located on the base portion of the container and the slot will be located in the top or cover portion of said container.
  • the tab will preferably be disposed asymmetrically about a common centre line of said base portion and said lid or cover portion, said tab including an indent or notch which is adapted to be engaged by a wall of said slot in the closed condition of the container.
  • the container will preferably be a one-piece container and will preferably be composed of expanded polystyrene and formed by moulding.
  • a container which is a moulded one-piece member comprising a base portion 2 and a lid or cover portion 4 which are connected together through the intermediary of an integral hinge 6.
  • the lid or cover portion is movable about said hinge 6 from the position shown in Figure 1 to a position in which the lid or cover portion 4 overlies said base portion 2.
  • the container is composed of expanded polystyrene.
  • the base portion 2 carries a tab 8 and the lid or cover portion 4 has an elongate slot 10, the tab 8 and slot 10 together forming a closure for the container, the tab 8 being adapted to engage in said slot 10 so as to maintain the lid or cover portion 4 in a closed position relative to and over the base portion 2.
  • both the tab 8 and slot 10 are disposed symmetrically about a common centre line 12 of the container, and they remain on this common centre line both in the open condition of the container (as shown in Figure 1) and in the closed condition of the container. Because of the positioning of the tab 8 and slot 10, i.e. on a common centre line of the container, the tab 8, when the base portion is carrying a product (for example food) 'and when the container is in a closed condition, has a tendency to pull away from and leave the slot 10, resulting in failure of the container and possibly damage to and/or destruction of the product in the container.
  • a product for example food
  • the one-piece container - comprising a base portion 20 and a lid or cover portion 22, and an integral hinge 24 - has a tab 28 on the base portion which is disposed asymmetrically about the centre line 26 of the container and symmetrically about its own centre line 27, and which is notched or indented as indicated by reference numeral 30.
  • a tab 28 on the base portion which is disposed asymmetrically about the centre line 26 of the container and symmetrically about its own centre line 27, and which is notched or indented as indicated by reference numeral 30.
  • the container is composed of expanded polystyrene and is formed by moulding.
  • the lid or cover portion 22 is moved about the hinge 24 and is moved slightly sideways and simultaneously the base portion 20 is slightly depressed axially in the vicinity of the tab 28, so as to allow the tab 28 and slot 32 to interengage. In this position, the tab 28 will generally be symmetrical with respect to the slot 32.
  • the lid or cover portion 22 When the sideways pressure on the lid or cover portion 22 is released, and due to the inherent resilience of the lid or cover portion, the lid or cover portion will return to its normal, off-centre position such that a side wall 32A of the slot 32 will be located in the notch or indent 30. This is best seen in Figure 5.
  • the container When conducting the dead-weight test - referred to previously - the container will remain in its closed state - with no failure of the closure - due to the engagement of the wall 32A of the slot 32 in the notch or indent 30.
  • the slot 30 could be asymmetrical with respect to said centre line, in which case the tab 28 would be symmetrical.
  • both the tab 28 and the slot 30 could be assymmetrical about the common centre line, each being symmetrical about its own centre line, such centre lines being offset with respect to each other and with respect to the common centre line.
  • the tab may be disposed on the other side of the centre line of the container, i.e. the centre line of the tab could be to the left (in the drawing) of the centre line of the container, in which case the notch or indent will be at the right hand side (in the drawing) of the tab.
  • the container may take forms other than illustrated and described and that it may be composed of material other than expanded polystyrene, for example orientated polystyrene or other material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP98305102A 1997-07-03 1998-06-29 Récipient Withdrawn EP0888975A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9713955.4A GB9713955D0 (en) 1997-07-03 1997-07-03 Containers
GB9713955 1997-07-03

Publications (2)

Publication Number Publication Date
EP0888975A2 true EP0888975A2 (fr) 1999-01-07
EP0888975A3 EP0888975A3 (fr) 1999-10-13

Family

ID=10815251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98305102A Withdrawn EP0888975A3 (fr) 1997-07-03 1998-06-29 Récipient

Country Status (2)

Country Link
EP (1) EP0888975A3 (fr)
GB (1) GB9713955D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI695800B (zh) * 2019-04-22 2020-06-11 松欣美有限公司 泡殼之蓋體與盒體的組合結構

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977595A (en) * 1975-04-07 1976-08-31 Dolco Packaging Corporation Carton with tab latch closure
GB2025757A (en) * 1978-07-04 1980-01-30 Contiplast Kunststoffabrikatio Plate
US4787552A (en) * 1987-09-30 1988-11-29 Chuo Kagaku Kabushiki Kaisha Case for packaging

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977595A (en) * 1975-04-07 1976-08-31 Dolco Packaging Corporation Carton with tab latch closure
GB2025757A (en) * 1978-07-04 1980-01-30 Contiplast Kunststoffabrikatio Plate
US4787552A (en) * 1987-09-30 1988-11-29 Chuo Kagaku Kabushiki Kaisha Case for packaging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI695800B (zh) * 2019-04-22 2020-06-11 松欣美有限公司 泡殼之蓋體與盒體的組合結構

Also Published As

Publication number Publication date
EP0888975A3 (fr) 1999-10-13
GB9713955D0 (en) 1997-09-03

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