EP0634337A1 - Couvercle enfonçable pour boîtes - Google Patents

Couvercle enfonçable pour boîtes Download PDF

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Publication number
EP0634337A1
EP0634337A1 EP94110761A EP94110761A EP0634337A1 EP 0634337 A1 EP0634337 A1 EP 0634337A1 EP 94110761 A EP94110761 A EP 94110761A EP 94110761 A EP94110761 A EP 94110761A EP 0634337 A1 EP0634337 A1 EP 0634337A1
Authority
EP
European Patent Office
Prior art keywords
edge
push
lid
collar
cardboard
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Withdrawn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
EP94110761A
Other languages
German (de)
English (en)
Inventor
Horst Flick
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.)
BEGA-WERKE GmbH
Original Assignee
BEGA-WERKE GmbH
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 BEGA-WERKE GmbH filed Critical BEGA-WERKE GmbH
Publication of EP0634337A1 publication Critical patent/EP0634337A1/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Withdrawn legal-status Critical Current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
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/022—Removable 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
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0217—Containers with a closure presenting stacking elements
    • B65D21/022—Containers with a closure presenting stacking elements the bottom presenting projecting peripheral elements receiving or surrounding the closure or peripheral elements projecting therefrom
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00231—Overall construction of the lid made of several pieces
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00268—Paper
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact 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
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact 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
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546—NO contact
    • 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling

Definitions

  • the invention relates to a press-in lid for cans, with a base and a raised edge, which has an outwardly projecting contact flange for the edge of the can at the upper free end.
  • Such push-in lids and the associated cans are widely used as sales packaging, for example for foods such as tea, cocoa and the like.
  • the side wall of the can delimits an opening, which usually has a circular cross section, but can optionally also have a square cross section with rounded corners.
  • the edge of the press-in cover is pressed into this opening so that it is held in the opening with a force fit and is supported with its contact flange on the edge of the can.
  • the object of the invention is therefore to provide a cardboard push-in lid which can be produced at low cost and yet has sufficient stability so that the opening of the can can be closed securely and tightly.
  • the bottom and the edge are drawn from a one-piece flat blank of cardboard, that the edge at the upper end has a collar pointing parallel to the bottom and that a cardboard disc is glued to the collar, which stiffens the edge and forms the contact flange together with the collar.
  • the main part of the lid consisting of bottom and edge can be produced with a pulling tool in a rational manner at low cost.
  • a very narrow collar facing outwards can also be formed at the upper end of the edge.
  • this collar would not be stable enough to serve as an abutment flange.
  • it offers a sufficient adhesive surface, which allows the disc, which is made separately from cardboard, to be glued to the upper end of the edge.
  • the disc can also be punched out of a cardboard strip in a rational manner and at low cost and can be stuck firmly to the main part of the cover while it is still in the drawing tool and supported by it.
  • an overall dimensionally stable structure which, in terms of its shape and its mechanical properties, corresponds to a conventional plastic push-in cover.
  • the overall manufacturing costs are also comparable to the costs for manufacturing a corresponding plastic cover.
  • the lid according to the invention has the advantage that its disposal is much less problematic.
  • the glued-on disc stiffens the edge of the lid in such a way that its functionality is retained even if moisture should penetrate the cut edges of the ring and the collar.
  • Another advantage of the lid according to the invention over conventional plastic lids is that the base of the lid can be printed before pulling, so that overall a more appealing design of the packaging can be achieved.
  • the disc can also be printed.
  • the disc is provided with at least one opening or is designed as a ring, so that one can exert a finger pressure directly on the bottom of the lid in order to press the lid into the can opening.
  • the push-in cover 10 shown in the drawing has an essentially flat base 12 and an edge 14 drawn up from the edge of the base.
  • the bottom 12 and the edge 14 are made in one piece from a flat blank of cardboard.
  • the initially circular blank is placed in a drawing mold (not shown) and drawn with a drawing punch under the action of heat, so that the edge 14 is formed.
  • the cut in the edge area can first be provided with incisions 16, so that excessive material jams when the edge is formed are avoided.
  • the base 12 is slightly curved downwards and is provided with a flat chamfer 18 in the edge region.
  • a flat chamfer 18 in the edge region.
  • a horizontally outward narrow collar 20 is formed according to FIG.
  • This collar can be produced by appropriate shaping of the drawing tool, but can also be realized in that the edge initially protrudes somewhat above the upper surface of the drawing mold and is then compressed.
  • the compression can also be carried out so that the material of the edge 14 is not only displaced outwards, but also partly inwards.
  • a ring 22 of cardboard is glued, which reinforces and stiffens the collar 20, so that a stable support flange is formed, with which the lid 10 is supported on the edge of the can, which surrounds the edge 14 of the lid.
  • a high degree of dimensional stability of the edge 14 is achieved, so that it abuts the entire surface of the inner surface of the can.
  • the ring 22 is preferably glued on at the stage in which the drawing part formed from the base 12 and the edge 14 is still in the drawing form.
  • the drawing mold serves as an abutment for the collar 20.
  • the adhesive for the connection between the ring 22 and the edge 14 can, for example, be applied in a ring pattern to the corresponding surfaces of the ring 22 before it is punched out from a corresponding blank.
  • the upsetting to form the collar 20 can be done in one operation by gluing the ring 22.
  • the adhesive connection between the ring 22 and the edge 14 of the cover can be subsequently strengthened by injecting additional adhesive 24 from the inside into the joint between the edge 14 and the cover 22 by means of a circumferential angle nozzle.
  • lid 10 has a circular outline so that it can be used in a cylindrical can
  • press-in lids can also be produced according to the same principle for cans with an oval or angular cross section with rounded corners.
  • the ring 22 closes with its outer peripheral edge flush with the outer edge of the collar 20.
  • the outer diameter of the ring 22 and collar 20 preferably coincides with the outer diameter of the can for which the lid is used, while the outer diameter of the cylindrical lower part of the rim 14 matches the inner diameter of the can.
  • Figure 3 shows a section through a lid 10 according to a modified embodiment, which is placed on the open upper end of a can 26.
  • the disc 22 has a flat circular protuberance 28 in its area located within the edge 14, which serves as a centering for the bottom 30 of a further can 26 placed thereon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP94110761A 1993-07-13 1994-07-11 Couvercle enfonçable pour boîtes Withdrawn EP0634337A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934323373 DE4323373A1 (de) 1993-07-13 1993-07-13 Eindrückdeckel für Dosen
DE4323373 1993-07-13

Publications (1)

Publication Number Publication Date
EP0634337A1 true EP0634337A1 (fr) 1995-01-18

Family

ID=6492657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110761A Withdrawn EP0634337A1 (fr) 1993-07-13 1994-07-11 Couvercle enfonçable pour boîtes

Country Status (2)

Country Link
EP (1) EP0634337A1 (fr)
DE (1) DE4323373A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308510A1 (de) * 1973-02-21 1974-08-22 Bruemmer Esbe Plastic Boden-innenzentrierung durch kunststoff-deckel
EP0125501A1 (fr) * 1983-04-20 1984-11-21 Henkel Kommanditgesellschaft auf Aktien Récipient pour matières en vrac, notamment pour détergents sous forme de poudre
CH679034A5 (en) * 1989-08-09 1991-12-13 Sandherr Packungen Ag Inserted box-lid - comprises deep-drawn cardboard sections secured inside each other

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE306125C (fr) *
BE795158A (fr) * 1972-02-10 1973-05-29 Elbatainer Kunstoff Und Verpac Couvercle pour recipient d'emballage en forme de fut ou de tambour
DE2422080A1 (de) * 1974-05-07 1975-11-20 Impraegnieranstalt Ag Zofingen Einsteckdeckel fuer einen behaelter
DE4028264A1 (de) * 1990-09-06 1992-03-12 Elmar Greinwald Blechdeckel fuer blechdosen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308510A1 (de) * 1973-02-21 1974-08-22 Bruemmer Esbe Plastic Boden-innenzentrierung durch kunststoff-deckel
EP0125501A1 (fr) * 1983-04-20 1984-11-21 Henkel Kommanditgesellschaft auf Aktien Récipient pour matières en vrac, notamment pour détergents sous forme de poudre
CH679034A5 (en) * 1989-08-09 1991-12-13 Sandherr Packungen Ag Inserted box-lid - comprises deep-drawn cardboard sections secured inside each other

Also Published As

Publication number Publication date
DE4323373A1 (de) 1995-01-19

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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