EP1006053B1 - Easy-open can lid - Google Patents

Easy-open can lid Download PDF

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Publication number
EP1006053B1
EP1006053B1 EP99114387A EP99114387A EP1006053B1 EP 1006053 B1 EP1006053 B1 EP 1006053B1 EP 99114387 A EP99114387 A EP 99114387A EP 99114387 A EP99114387 A EP 99114387A EP 1006053 B1 EP1006053 B1 EP 1006053B1
Authority
EP
European Patent Office
Prior art keywords
lid
ring
opening
closing part
edge
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.)
Expired - Lifetime
Application number
EP99114387A
Other languages
German (de)
French (fr)
Other versions
EP1006053A1 (en
Inventor
Reiner Dr. Sauer
Werner Efgen
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.)
ThyssenKrupp Rasselstein GmbH
Original Assignee
Rasselstein Hoesch 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 Rasselstein Hoesch GmbH filed Critical Rasselstein Hoesch GmbH
Publication of EP1006053A1 publication Critical patent/EP1006053A1/en
Application granted granted Critical
Publication of EP1006053B1 publication Critical patent/EP1006053B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • B65D2543/00277—Metal
    • 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
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • 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
    • B65D2543/00425—Lids or covers welded or adhered to 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
    • B65D2543/00435—Lids secured to an intermediate ring or like annular member fixed to the container mouth
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00861—Non-integral tabs, tongues, handles or similar
    • B65D2543/0087—Non-integral tabs, tongues, handles or similar outside of the lid

Definitions

  • the invention relates to an easy-to-open can lid according to the preamble of claim 1.
  • Such an easy-to-open can lid is known from DE 196 20 448 A1.
  • easy-to-open can lids in which the Closure part was formed by an aluminum foil, is at the beginning mentioned, easy to open can lid in the manufacture of the lid ring resulting sheet metal part used as a closure part.
  • the Sheet metal blank or the sheet metal from which sheet metal blank is punched out at least has a heat sealable coating on one side.
  • This coating can e.g. a film made of polypropylene or polyethylene terephthalate, or also a sealable, organic paint. This coating is in the beginning of the production of the cover Inside of the sheet metal blank or the later cover, i.e.
  • the stamped sheet metal part is heat-sealable Coating is arranged on the later inside of the lid Heat sealing two heat sealable coatings on top of each other, which makes a pressure tight Sealing guaranteed.
  • the closure part is sealed with a Opening tab or an opening ring so that you can pull on the Pull off the opening tab of the closure part from the ring flange of the cover ring and so that the can can be opened easily without a can opener.
  • the invention is based on the object of an easy-to-open can lid to improve the type mentioned in the introduction that the can after Pulling off the closure part can be closed again in a simple manner.
  • the can lid combines two essentials Characteristics.
  • the closure part By peeling off the closure part using the opening flap the closure part can be easily removed from the cover ring and the can opened become. If the contents of the can are only partially used, the closure can be closed place on the lid ring so that the shape points towards the inside of the can. By pressing the shape into the lid opening, the peripheral portion in the lid opening clamped and thus the closure part firmly on the lid ring held.
  • the coating on the flange also ensures a adequate sealing.
  • the finished, easy-to-open can lid is in one in the drawing Partial section shown, this partial section the edge region of the can lid 1 shows.
  • This can lid 1 consists of a lid ring 2 and a closure part 3.
  • the closure part 3 is formed by a sheet metal part, which in the manufacture of the Cover ring 2 occurs.
  • Both the cover ring 2 and the closure part 3, both are made from the same sheet metal blank, have on the inside - this is with of the finished can facing the can body 4 in the drawings below lying side of the can lid 1 - a heat sealable coating.
  • Coating which is not shown in the drawing, can be a laminated film, or a directly extruded polypropylene layer, Trade polyethylene terephthalate, a sealable lacquer or the like.
  • the cover ring 2 has on its inner edge formed by a flattened curl Ring flange 5 on.
  • a flattened curl Ring flange 5 By rolling the ring flange 5, which in DE 196 20th 448 A1 is described in more detail, the ring flange is on its entire outside, i.e. on its outward-facing upper side 5a and its inward-facing can Bottom 5b, provided with the heat sealable coating.
  • the closure part 3 On the ring flange 5 is the closure part 3, which is punched out by one of the cover ring 2 surrounded sheet metal part according to that in the aforementioned document described method has arisen, sealed with its edge area 3a.
  • the cover ring 2 also has an outer flange 6, which together with a corresponding outer flange 7 of the can body 4 to form a double fold serves.
  • a sheet is used to produce the can lid 1, e.g. Tinplate, chrome-plated sheet metal or aluminum sheet with a thickness between 0.05 and 0.3 mm. This sheet has at least on one side, which the finished can As previously mentioned, the interior of the can faces a heat-sealable coating. The sheet can be painted on the opposite outside.
  • the can lid is manufactured from the sheet metal blank in several Forming steps that are described in DE 196 20 448 A1. In addition these forming steps are used in the manufacture of the invention Can lid the sheet metal part, which neither forms the closure part 3, before Punch out of the cover ring 2 with one from the plane E-E of the sheet metal part outstanding, pot-like expression 3b, 3c provided what by hollow embossing, or multi-stage deep drawing can be done.
  • the pot-like shape 3b, 3c has cover field 3c extending essentially parallel to plane E-E and one circumferential section 3b extending substantially perpendicular to the plane E-E.
  • the Circumferential section 3b is in its outline shape and in its outline dimensions Outline shape and the outline dimensions of the lid opening 9 adapted so that the Closure part 3 with its characteristics, i.e. its peripheral portion 3b, jamming in the lid opening 9 can be used, as shown in FIG. 2.
  • Fig. 1 shows the can lid 1 in the sealed state, i.e. the closure part 3 is with sealed its flat edge region 3a with the flattened ring flange 5.
  • the expression 3b, 3c is expediently made so that it is opposite the Can is directed outwards. This makes it easier to pull off the Closure part 3 for opening the can.
  • an opening tab 11 or an opening ring is provided, which can be gripped with the fingers Initiation of pull-out forces allowed.
  • the opening tab 11 has one Fastening tab 12, which is bent along a bending edge 12a.
  • This Fastening tab 12 is bent over and be along a bending edge 12a bent free section is with the outside of the edge region 3a of the Closure part 3 connected by heat sealing, gluing or the like. The connection takes place in such a way that the bending edge 12a in the vicinity of the outer edge of the Closure part 3 is arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Air Bags (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

A can has a lid (1) with a closure (2) consisting of a ring which is hot sealed to the can blank, and a die-cut surrounding metal part and which is double-folded onto the can. The can ring closure is removed be peeling using an opening tab and replaced by hand pressure.

Description

Die Erfindung betrifft einen leicht zu öffnenden Dosendeckel gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an easy-to-open can lid according to the preamble of claim 1.

Ein derartiger, leicht zu öffnender Dosendeckel ist aus der DE 196 20 448 A1 bekannt. Gegenüber zuvor bekannten, leicht zu öffnenden Dosendeckeln, bei denen das Verschlußteil durch eine Aluminiumfolie gebildet war, wird bei dem eingangs erwähnten, leicht zu öffnenden Dosendeckel das bei der Herstellung des Deckelringes anfallende Blechteil als Verschlußteil verwendet. Hierzu ist es wichtig, daß der Blechrohling bzw. das Blech, aus dem Blechrohling ausgestanzt wird, zumindest einseitig eine heißsiegelfähige Beschichtung aufweist. Diese Beschichtung kann z.B. eine Folie aus Polypropylen oder Polyäthylenterephtalat, oder auch ein siegelfähiger, organischer Lack sein. Diese Beschichtung ist zu Beginn der Deckelfertigung in der Innenseite des Blechrohlings bzw. des späteren Deckels, d.h. an derjenigen Seite, die beim fertigen Deckel dem Innern der Dose zugekehrt ist, angeordnet. Durch den Umformvorgang wird die heißsiegelfähige Beschichtung im Bereich der Einrollung und durch das Flachdrücken derselben im Bereich des Ringflansches an die Deckelaußenseite gebracht. Da bei dem ausgestanzten Blechteil die heißsiegelfähige Beschichtung an der späteren Innenseite des Deckels angeordnet ist, kommen beim Heißsiegeln zwei heißsiegelfähige Beschichtungen aufeinander, was eine druckdichte Siegelung gewährleistet. Das Verschlußteil wird vor dem Versiegeln mit einer Öffnungslasche oder einem Öffnungsring versehen, so daß man durch Ziehen an der Öffnungslasche das Verschlußteil von dem Ringflansch des Deckelringes abziehen und damit die Dose ohne einen Dosenöffner leicht öffnen kann.Such an easy-to-open can lid is known from DE 196 20 448 A1. Compared to previously known, easy-to-open can lids, in which the Closure part was formed by an aluminum foil, is at the beginning mentioned, easy to open can lid in the manufacture of the lid ring resulting sheet metal part used as a closure part. It is important that the Sheet metal blank or the sheet metal from which sheet metal blank is punched out, at least has a heat sealable coating on one side. This coating can e.g. a film made of polypropylene or polyethylene terephthalate, or also a sealable, organic paint. This coating is in the beginning of the production of the cover Inside of the sheet metal blank or the later cover, i.e. on the side that with the finished lid facing the inside of the can, arranged. By the Forming process is the heat-sealable coating in the area of the curl and by flattening them in the area of the ring flange to the Bring the outside of the lid. Because the stamped sheet metal part is heat-sealable Coating is arranged on the later inside of the lid Heat sealing two heat sealable coatings on top of each other, which makes a pressure tight Sealing guaranteed. The closure part is sealed with a Opening tab or an opening ring so that you can pull on the Pull off the opening tab of the closure part from the ring flange of the cover ring and so that the can can be opened easily without a can opener.

Der Erfindung liegt nun die Aufgabe zugrunde, einen leicht zu öffnenden Dosendeckel der eingangs erwähnten Art dahingehend zu verbessern, daß die Dose nach dem Abziehen des Verschlußteiles in einfacher Weise wieder verschließbar ist.The invention is based on the object of an easy-to-open can lid to improve the type mentioned in the introduction that the can after Pulling off the closure part can be closed again in a simple manner.

Dies wird nach der Erfindung durch die im Anspruch 1 definierten Merkmale erreicht.This is achieved according to the invention by the features defined in claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are in the subclaims characterized.

Durch diese Ausgestaltung vereinigt der Dosendeckel in sich zwei wesentliche Eigenschaften. Durch Abziehen (Peelen) des Verschlußteiles mittels der Öffnungslasche kann das Verschlußteil leicht vom Deckelring entfernt und damit die Dose geöffnet werden. Wenn der Doseninhalt nur teilweise verbraucht ist, kann man das Verschlußteil so auf den Deckelring aufsetzen, daß die Ausprägung zum Doseninneren hin zeigt. Durch Andrücken der Ausprägung in die Deckelöffnung wird der Umfangsabschnitt in der Deckelöffnung festgeklemmt und damit das Verschlußteil fest am Deckelring gehalten. Die am Flansch vorhandene Beschichtung sorgt dabei auch für eine ausreichende Abdichtung. With this configuration, the can lid combines two essentials Characteristics. By peeling off the closure part using the opening flap the closure part can be easily removed from the cover ring and the can opened become. If the contents of the can are only partially used, the closure can be closed place on the lid ring so that the shape points towards the inside of the can. By pressing the shape into the lid opening, the peripheral portion in the lid opening clamped and thus the closure part firmly on the lid ring held. The coating on the flange also ensures a adequate sealing.

Die Erfindung wird in folgendem, anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
einen Teilschnitt eines ersten Ausführungsbeispieles mit dem aufgesiegelten Verschlußteil,
Fig. 2
einen Teilschnitt des gleichen Ausführungsbeispieles in wieder verschlossenem Zustand,
Fig. 3
einen Teilschnitt eines zweiten Ausführungsbeispieles.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawing. Show it:
Fig. 1
1 shows a partial section of a first exemplary embodiment with the sealing part sealed on,
Fig. 2
2 shows a partial section of the same embodiment in the closed state,
Fig. 3
a partial section of a second embodiment.

Der fertige, leicht zu öffnende Dosendeckel ist in der Zeichnung jeweils in einem Teilschnitt dargestellt, wobei dieser Teilschnitt den Randbereich des Dosendeckels 1 zeigt. Dieser Dosendeckel 1 besteht aus einem Deckelring 2 und einem Verschlußteil 3. Das Verschlußteil 3 ist durch ein Blechteil gebildet, welches bei der Herstellung des Deckelringes 2 anfällt. Sowohl der Deckelring 2 als auch das Verschlußteil 3, die beide aus dem gleichen Blechrohling hergestellt sind, weisen an ihrer Innenseite - dies ist bei der fertigen Dose die dem Dosenrumpf 4 zugekehrte, in den Zeichnungen unten liegende Seite des Dosendeckels 1 - eine heißsiegelfähige Beschichtung auf. Bei dieser Beschichtung, die in der Zeichnung nicht dargestellt ist, kann es sich um eine aufkaschierte Folie, oder eine direkt aufextrudierte Schicht aus Polypropylen, Polyäthylenterephtalat, einen siegelfähigen Lack oder dgl. handeln. Der Deckelring 2 weist an seinem inneren Rand einen durch eine flachgedrückte Einrollung gebildeten Ringflansch 5 auf. Durch das Einrollen des Ringflansches 5, welches in der DE 196 20 448 A1 näher beschrieben ist, ist der Ringflansch an seiner gesamten Außenseite, d.h. an seiner nach außen gerichteten Oberseite 5a und seiner zum Doseninneren gerichteten Unterseite 5b, mit der heißsiegelfähigen Beschichtung versehen. Auf den Ringflansch 5 ist das Verschlußteil 3, welches durch Ausstanzen eines von dem Deckelring 2 umgebenen Blechteiles gemäß dem in der vorgenannten Druckschrift näher beschriebenen Verfahren entstanden ist, mit seinem Randbereich 3a aufgesiegelt. Während des Herstellungsverfahrens des Deckelringes wird eine Einrollung so zu dem Ringflansch 5 flachgedrückt, daß sich dieser und der Randbereich 3a des Verschlußteiles 3 gegenseitig überlappen. Der Ringflansch 5 umschließt dann eine Deckelöffnung 9, die etwas kleiner ist als die Außenabmessung 10 des Verschlußteiles 3, obwohl das Verschlußteil 3 durch Ausstanzen eines Blechteiles aus dem Deckelring 2 entstanden ist.The finished, easy-to-open can lid is in one in the drawing Partial section shown, this partial section the edge region of the can lid 1 shows. This can lid 1 consists of a lid ring 2 and a closure part 3. The closure part 3 is formed by a sheet metal part, which in the manufacture of the Cover ring 2 occurs. Both the cover ring 2 and the closure part 3, both are made from the same sheet metal blank, have on the inside - this is with of the finished can facing the can body 4 in the drawings below lying side of the can lid 1 - a heat sealable coating. At this Coating, which is not shown in the drawing, can be a laminated film, or a directly extruded polypropylene layer, Trade polyethylene terephthalate, a sealable lacquer or the like. The cover ring 2 has on its inner edge formed by a flattened curl Ring flange 5 on. By rolling the ring flange 5, which in DE 196 20th 448 A1 is described in more detail, the ring flange is on its entire outside, i.e. on its outward-facing upper side 5a and its inward-facing can Bottom 5b, provided with the heat sealable coating. On the ring flange 5 is the closure part 3, which is punched out by one of the cover ring 2 surrounded sheet metal part according to that in the aforementioned document described method has arisen, sealed with its edge area 3a. During the manufacturing process of the cover ring, a curl becomes so Ring flange 5 flattened that this and the edge area 3a of the Closure part 3 overlap each other. The ring flange 5 then encloses one Lid opening 9, which is slightly smaller than the outer dimension 10 of the closure part 3, although the closure part 3 by punching out a sheet metal part from the cover ring 2 arose.

Der Deckelring 2 weist ferner einen Außenbördel 6 auf, der zusammen mit einem entsprechenden Außenbördel 7 des Dosenrumpfes 4 zur Bildung eines Doppelfalzes dient. Zur Herstellung des Dosendeckels 1 wird ein Blech verwendet, z.B. Weißblech, verchromtes Feinstblech oder Aluminiumblech mit einer Dicke zwischen 0,05 und 0,3 mm. Dieses Blech weist zumindest an einer Seite, die bei der fertigen Dose dem Doseninneren zugekehrt ist, wie zuvor erwähnt, eine heißsiegelfähige Beschichtung auf. An der gegenüberliegenden Außenseite kann das Blech lackiert sein.The cover ring 2 also has an outer flange 6, which together with a corresponding outer flange 7 of the can body 4 to form a double fold serves. A sheet is used to produce the can lid 1, e.g. Tinplate, chrome-plated sheet metal or aluminum sheet with a thickness between 0.05 and 0.3 mm. This sheet has at least on one side, which the finished can As previously mentioned, the interior of the can faces a heat-sealable coating. The sheet can be painted on the opposite outside.

Die Herstellung des Dosendeckels aus dem Blechrohling erfolgt in mehreren Umformschritten, die in der DE 196 20 448 A1 näher beschrieben sind. In Ergänzung zu diesen Umformschritten wird bei der Herstellung des erfindungsgemäßen Dosendeckels das Blechteil, welches weder das Verschlußteil 3 bildet, vor dem Ausstanzen aus dem Deckelring 2 mit einer aus der Ebene E-E des Blechteiles herausragenden, topfartigen Ausprägung 3b, 3c versehen, was durch Hohlprägen, oder mehrsstufiges Tiefziehen erfolgen kann. Die topfartige Ausprägung 3b, 3c weist ein sich im wesentlichen parallel zur Ebene E-E erstreckendes Deckelfeld 3c und einen sich im wesentlichen senkrecht zur Ebene E-E erstreckenden Umfangsabschnitt 3b auf. Der Umfangsabschnitt 3b ist in seiner Umrißform und in seinen Umrißabmessungen der Umrißform und den Umrißabmessungen der Deckelöffnung 9 so angepaßt, daß das Verschlußteil 3 mit seiner Ausprägung, d.h. seinem Umfangsabschnitt 3b, klemmend in die Deckelöffnung 9 einsetztbar ist, wie es in Fig. 2 dargestellt ist.The can lid is manufactured from the sheet metal blank in several Forming steps that are described in DE 196 20 448 A1. In addition these forming steps are used in the manufacture of the invention Can lid the sheet metal part, which neither forms the closure part 3, before Punch out of the cover ring 2 with one from the plane E-E of the sheet metal part outstanding, pot-like expression 3b, 3c provided what by hollow embossing, or multi-stage deep drawing can be done. The pot-like shape 3b, 3c has cover field 3c extending essentially parallel to plane E-E and one circumferential section 3b extending substantially perpendicular to the plane E-E. The Circumferential section 3b is in its outline shape and in its outline dimensions Outline shape and the outline dimensions of the lid opening 9 adapted so that the Closure part 3 with its characteristics, i.e. its peripheral portion 3b, jamming in the lid opening 9 can be used, as shown in FIG. 2.

Fig. 1 zeigt den Dosendeckel 1 in versiegeltem Zustand, d.h. das Verschlußteil 3 ist mit seinem ebenen Randbereich 3a mit dem flachgedrückten Ringflansch 5 versiegelt. Hierbei ist zweckmäßig die Ausprägung 3b, 3c so hergestellt, daß sie gegenüber der Dose nach außen gerichtet ist. Dies erleichtert nämlich das Abziehen des Verschlußteiles 3 zum Öffnen der Dose. Zu diesem Zweck ist eine Öffnungslasche 11 oder auch ein Öffnungsring vorgesehen, welche das Erfassen mit den Fingern zum Einleiten der Ausreißkräfte erlaubt. Die Öffnungslasche 11 weist einen Befestigungslappen 12 auf, der entlang einer Biegekante 12a umgebogen ist. Dieser Befestigungslappen 12 ist entlang einer Biegekante 12a umgebogen und sein umgebogener freier Abschnitt ist mit der Außenseite des Randbereiches 3a des Verschlußteiles 3 durch Heißsiegeln, Kleben oder dgl. verbunden. Die Verbindung erfolgt dabei derart, daß die Biegekante 12a in der Nähe des äußeren Randes des Verschlußteiles 3 angeordnet ist. Durch Ziehen an der Öffnungslasche 11 wird der Randbereich 3a des Verschlußteiles 3 zunächst im Bereich des Befestigungslappens 12 von dem Ringflansch 5 gelöst und anschließend kann das gesamte Verschlußteil 3 vom Deckelring 2 abgezogen werden.Fig. 1 shows the can lid 1 in the sealed state, i.e. the closure part 3 is with sealed its flat edge region 3a with the flattened ring flange 5. Here, the expression 3b, 3c is expediently made so that it is opposite the Can is directed outwards. This makes it easier to pull off the Closure part 3 for opening the can. For this purpose, an opening tab 11 or an opening ring is provided, which can be gripped with the fingers Initiation of pull-out forces allowed. The opening tab 11 has one Fastening tab 12, which is bent along a bending edge 12a. This Fastening tab 12 is bent over and be along a bending edge 12a bent free section is with the outside of the edge region 3a of the Closure part 3 connected by heat sealing, gluing or the like. The connection takes place in such a way that the bending edge 12a in the vicinity of the outer edge of the Closure part 3 is arranged. By pulling on the opening tab 11 Edge region 3a of the closure part 3 initially in the region of the fastening tab 12 loosened from the ring flange 5 and then the entire closure part 3 from Cover ring 2 are removed.

Wenn der Doseninhalt nur teilweise verbraucht ist und noch später verwendet werden soll, kann man das Verschlußteil um 180° drehen und wieder auf den Deckelring 2 aufsetzen. Vorher muß allerdings die Öffnungslasche ebenfalls um 180° in entgegengesetzter Richtung um den äußeren Rand des Verschlußteiles 3 gebogen werden, damit sie wieder nach außen zu liegen kommt. Der Umfangsabschnitt 3b kann in die Deckelöffnung 9 eingedrückt werden und wird dort klemmend gehalten. Eine gewisse Abdichtung erfolgt durch die Beschichtung des Deckelringes 2, die an dem die Deckelöffnung 9 begrenzenden Teil des Ringflansches 5 dem Umfangsabschnitt 3b zugekehrt ist.When the contents of the can are only partially used and can be used later you can turn the closure part by 180 ° and put it back on the cover ring 2 put on. Before that, however, the opening tab must also be turned through 180 ° opposite direction bent around the outer edge of the closure part 3 so that it comes out again. The peripheral portion 3b can are pressed into the lid opening 9 and is held there by clamping. A certain sealing takes place through the coating of the cover ring 2, on which the Cover opening 9 delimiting part of the ring flange 5 the peripheral portion 3b turned towards.

Bei dem in Fig. 3 dargestellten Ausführungsbeispiel sind Teile gleicher Funktion mit den gleichen Bezugszeichen bezeichnet wie beim vorhergehenden Ausführungsbeispiel, weshalb vorstehende Beschreibung sinngemäß auch auf das in Fig. 3 dargestellte Ausführungsbeispiel zutrifft. Dieses Ausführungsbeispiel unterscheidet sich vom vorangegangenen Ausführungsbeispiel nur dadurch, daß die Ausprägung 3b, 3c des mit dem Ringflansch 5 versiegelten Verschlußteiles 3 bereits vor dem Ausstanzen zum Doseninneren hin gerichtet ist. Der Randbereich 3a des Verschlußteiles 3 ist mit dem Ringflansch 5 vor dem erstmaligen Öffnen der Dose versiegelt. Der Lappen 12 der Öffnungslasche 11 ist mit der Außenseite des Randbereiches 3a verklebt oder versiegelt. Nach dem erstmaligen Öffnen des Dosendeckels kann dessen Verschlußteil 3 in der gleichen Lage wieder in die Deckelöffnung 11 eingesetzt werden, um die teilweise geleerte Dose wieder zu verschließen.In the embodiment shown in Fig. 3, parts with the same function are with the same reference numeral as in the previous embodiment, which is why the above description also applies to that shown in FIG. 3 Embodiment applies. This embodiment differs from previous embodiment only in that the expression 3b, 3c of the the ring flange 5 sealed closure part 3 before punching out The inside of the can. The edge region 3a of the closure part 3 is with the Ring flange 5 sealed before opening the can for the first time. The rag 12 of the Opening tab 11 is glued or sealed to the outside of the edge area 3a. After the opening of the can lid for the first time, its closure part 3 in the same position again in the lid opening 11 to the partially close the empty can again.

Claims (3)

  1. Can with an easily opened can lid, consisting of
    a lid ring (2) which is constituted by forming a sheet-metal blank provided with a heat sealable coating on at least one side and stamping out the sheet-metal part surrounded by the lid ring (2) and which at its outer edge exhibits an outer flange (6) to form a double seam and at its inner edge exhibits a ring flange (5) which is formed by a rolled part and surrounds a lid opening (9), the rolled part being formed and pressed flat to form the ring flange so that the lid opening is smaller than the sheet-metal part stamped out,
    and a closing part (3) which is formed from the sheet-metal part stamped out and before being stamped out of the lid ring (2) is provided with a dish-like pressed part (3b, 3c) projecting out of the plane (E-E) of the closing part (3) and exhibiting a circumferential portion (3b) which extends perpendicularly to the plane (E-E) and lies between the flat edge area (3a) lying in the plane (E-E) and a lid central area (3c) pressed out of the plane (E-E) and extending parallel to this,
    wherein
    the ring flange (5) of the lid ring (2) and the edge area (3a) of the closing part overlap one another and for closure of the lid opening (9) for the first time the edge area (3a) of the closing part and the ring flange (5) are connected detachably to one another by heat sealing in the area of their overlap, the pressed part (3b, 3c) being directed outwards in relation to the can (4) to be closed with the can lid,
    the lid opening (9) is opened for the first time by pulling the closing part (3) off the lid ring (2),
    and the outline shape and dimensions of the closing part (3) are matched to the outline shape and the dimensions of the lid opening (9) so that the closing part (3) can be inserted by its pressed part (3b, 3c) into the lid opening (9) with an interference fit to close the can lid again.
  2. Can lid according to claim 1, characterised in that an opening ring or an opening strip (11) is attached on the outside of the edge area (3a) to pull the closing part off the lid ring (2), the opening ring or the opening strip (11) exhibiting a fastening tongue (12) which is connected to the outside of the edge area (3a) by heat sealing, gluing or the like.
  3. Can lid according to claim 2, characterised in that the fastening tongue (12) is bent over along one bending edge (12a) and its bent over free portion is connected to the edge area (3a) of the closing part (3) on its outside so that the bending edge (12a) is located in the vicinity of the outer edge of the closing part (3) and runs essentially parallel to this.
EP99114387A 1998-12-02 1999-07-22 Easy-open can lid Expired - Lifetime EP1006053B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29821514U DE29821514U1 (en) 1998-12-02 1998-12-02 Easy to open can lid
DE29821514U 1998-12-02

Publications (2)

Publication Number Publication Date
EP1006053A1 EP1006053A1 (en) 2000-06-07
EP1006053B1 true EP1006053B1 (en) 2002-09-25

Family

ID=8066109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114387A Expired - Lifetime EP1006053B1 (en) 1998-12-02 1999-07-22 Easy-open can lid

Country Status (6)

Country Link
EP (1) EP1006053B1 (en)
AT (1) ATE224844T1 (en)
DE (2) DE29821514U1 (en)
DK (1) DK1006053T3 (en)
ES (1) ES2181343T3 (en)
PT (1) PT1006053E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10055527C2 (en) * 2000-11-09 2002-10-17 Rasselstein Hoesch Gmbh can end
GB0208017D0 (en) * 2002-04-08 2002-05-15 Fitton Ernest W New container method for feeding pets
CA3099960A1 (en) * 2018-05-14 2019-11-21 The Proctor & Gamble Company Dentifrice dispenser

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB379121A (en) * 1931-09-29 1932-08-25 Henry Grant Boutle & Company L Improvements relating to indicators for paint cans and the like
GB1536543A (en) * 1975-01-13 1978-12-20 Metal Box Co Ltd Containers
DE2933547A1 (en) * 1979-07-26 1981-03-12 Schweizerische Aluminium AG, 3965 Chippis Mfr. of lid and lid ring - uses deep-drawing of recesses for lid and ring, in sheet metal blank
CH654542A5 (en) * 1982-04-05 1986-02-28 Sandherr Packungen Ag LOCKING LID FOR STERILIZABLE CAN.
DE19620448C2 (en) 1996-05-21 2001-07-05 Rasselstein Hoesch Gmbh Process for producing an easy-to-open can lid

Also Published As

Publication number Publication date
DK1006053T3 (en) 2002-10-21
ATE224844T1 (en) 2002-10-15
DE29821514U1 (en) 2000-04-13
EP1006053A1 (en) 2000-06-07
PT1006053E (en) 2003-01-31
DE59902826D1 (en) 2002-10-31
ES2181343T3 (en) 2003-02-16

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