EP0061980A1 - Leicht zu öffnender Behälter mit Aufreisslasche und Aufreisslinie - Google Patents

Leicht zu öffnender Behälter mit Aufreisslasche und Aufreisslinie Download PDF

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Publication number
EP0061980A1
EP0061980A1 EP82420036A EP82420036A EP0061980A1 EP 0061980 A1 EP0061980 A1 EP 0061980A1 EP 82420036 A EP82420036 A EP 82420036A EP 82420036 A EP82420036 A EP 82420036A EP 0061980 A1 EP0061980 A1 EP 0061980A1
Authority
EP
European Patent Office
Prior art keywords
panel
rib
discontinuities
axis
cover
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.)
Granted
Application number
EP82420036A
Other languages
English (en)
French (fr)
Other versions
EP0061980B1 (de
Inventor
Jean-Michel Moniod
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.)
Albea Tubes France SAS
Original Assignee
Cebal SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9256651&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0061980(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cebal SAS filed Critical Cebal SAS
Priority to AT82420036T priority Critical patent/ATE9306T1/de
Publication of EP0061980A1 publication Critical patent/EP0061980A1/de
Application granted granted Critical
Publication of EP0061980B1 publication Critical patent/EP0061980B1/de
Expired 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab

Definitions

  • the front part of the panel the part which is located near the tongue, and by the rear part, the part which is the farthest from it and which detaches last. of the cover when opening.
  • the axis of the panel will be designated its greatest axis of symmetry. It will also be considered that the line of incision and the peripheral rib consist of two branches originating on either side of the tongue and joining at the rear end of the panel.
  • the panel which has bent evenly towards the back, tends to turn over at the back of the box. It has become very flexible, like a spring.
  • the consumer has difficulty exerting a backward force in a direction substantially tangential to the cover.
  • the panel can deploy suddenly and, by spring effect, may come to close abruptly splashing the consumer. To avoid these inconveniences, it is advantageous to stiffen the rear of the panel.
  • the consumer At the end of opening, the consumer must also be able to exert shearing by a movement back and forth, without producing a spring effect when the panel detaches completely from the box.
  • the lids with easy opening must satisfy contradictory requirements: good resistance before opening and, however, a perforation and then an easy tear according to a well defined path during opening.
  • the opening panel for the covers of long shape must be able to be torn off completely without difficulty, even for covers of large dimensions, that is to say of length of the order of 120 mm or more, greater length. hand-width.
  • the cover object of the invention, has a shape reminiscent of that of the DELPEUT cover. However, it responds particularly hurt to the various and even contradictory issues imposed on easy-opening covers.
  • This cover preferably of long form, with easy opening, with tear-off tab and incision ligie defining an opening panel which comprises a stiffening rib (or groove) which borders the incision line at the inside the panel, this cover has the particularity that each of the branches of its rib has at least one slight very localized discontinuity of the shape of its cross section, this discontinuity consisting of a partial and local flattening, or rather a primer of transverse fold on its ridge line.
  • the discontinuities of one and the other branch are asymmetrical with respect to the major axis of the panel. If the tongue is not in the axis of the cover, the discontinuities will be asymmetrically arranged both with respect to the axis of the panel and to the axis of the tongue.
  • the tearing of the wall then continues alternately along one branch of the incision line and then the other. This splits the effort required from the consumer, who is concentrated successively on one and then on the other branch.
  • the rib folds successively according to the discontinuities located on one then the other branch.
  • the panel itself folds in a succession of zigzag lines which join the discontinuities arranged on both branches of the rib. It is gradually divided into planar elements of small area which gradually rise from the cover and somehow form leverage for the consumer.
  • the panel is stiffened in progress opening by the zig zag folds and cannot be closed suddenly like a spring if, by mistake, the consumer releases the tab before tearing off said panel completely.
  • the maximum distance between two discontinuities on the same rib will preferably be of the order of 40 mm.
  • FIGS. 1, 2, 3 and 4 two types of easy-opening cover are shown, according to the invention. These covers are both bordered by a rim (1) intended to be folded and crimped on the edge of a box not shown here. Along this rim, an incision line (2) has been engraved defining an opening panel (3). A tongue (4) is fixed to the panel by an integrated rivet (5); this tongue (4) comprises a gripping ring (6) at the rear and a perforation spout (7) whose front end is disposed substantially perpendicular to the line of incision (2).
  • the two covers shown have a rib (8) of reinforcement in relief arranged at the edge of the panel (3) along the incision line (2).
  • this rib (8) is not continuous like that of the FR. 407 604, but has slight discontinuities (9, 10, 11, 12, 9 ', 10', 11 ', 12') distributed along the rib (8) on either side of the major axis of symmetry ( XX ') of the cover.
  • These discontinuities are, preferably, simple transverse unevennesses (9, 10, 11, 12, 9 ', 10', 11 ', 12') interrupting the crest line of the rib (8), as shown in FIGS. 1, 3 and 5.
  • cover of Figures 1 and 2 is substantially symmetrical with a tongue (4) arranged in the longitudinal axis of the cover (XX ').
  • the cover of Figures 3 and 4 is clearly asymmetrical with its tongue (4) oriented along the axis (ZZ ') oblique to the axis (XX') of the cover.
  • the rear discontinuities (9, 9 ') are arranged symmetrically with respect to the axis (XX') of the cover. But, more generally, their location is determined experimentally according to the type of cover so that the portion continues to rib (8) which connects them, stiffens transversely and longitudinally the panel in this area. Thus, at the end of the opening, the user can easily finish tearing off the panel (3) by movement back and forth.
  • the other discontinuities, at least partial, (10, 10 ', 11, 11', 12, 12 ') must be asymmetrical with respect to the axis (XX'), as shown here.
  • the lines joining two homologous discontinuities (9-10 ', 10'-10, 10-11', 11'-11, 11-12 ', 12'-12) form with this axis an angle (a) between 60 and 80 0 .
  • the rib (8) is interrupted under the tongue (4) fixed directly on the plane of the periphery of the panel (3).
  • the front end of the panel (3) folds in a known manner towards the inside of the box. .
  • the initial fold of the panel is effected is se- the a straight line (AB) perpendicular to the axis (ZZ ') of the tab and substantially tangential to the rivet (5) to the rear of this rivet.
  • the fold line (AB) is tangent to the rivet (5) at the front of this rivet.
  • the rib (8) is interrupted under the tongue (4), the front ends (13, 13 ') of each of the branches of the rib (8) are arranged, relative to the nose (7) of the tongue, slightly behind from the right (AB) fold.
  • the transverse rigidity of the ring at the start of opening is reinforced by the two branches of the rib (8) which extend substantially in the extension of the straight line (AB).
  • the two branches of the rib (8) also help guide the initial tearing of the wall along the two branches of the incision line (2), on either side of the tongue (4).
  • the pulling force transmitted by the tongue (4) is concentrated on one then the other side of the cover until discontinuities (12) and (12 ').
  • the wall gives way on one side then on the other.
  • the force transmitted by the rivet (5) is then concentrated on the nearest non-torn part (11, 12) which in turn tears by creating a new transverse fold (11,12 ').
  • the tear continues alternately along one branch and then the other of the incision line (2), without the consumer having to exert significant effort.
  • the tear line is well guided by both the incision line (2) and the rib (8) which borders it.
  • the panel (3) is stiffened by the folds joining in a zig zag discontinuities located alternately on the two branches of the rib (8) as well as by the rear transverse part of the rib (8) which extends without interruption between the discontinuities (9, 9 ').
  • the zigzag folds are shown in dotted lines in Figure 1.
  • the maximum distance L between two successive discontinuities such as (10), (11) is of the order of 40 mm.
  • the discontinuities shown in Figures 1, 3 and 5 are simple, partial and localized flattenings of the rib (8), leaving it with a residual height of the order of 1/2 to 2/3 of its height (h ). They are more simple transverse weakenings than real discontinuities. They are sufficient to locally reduce the moment of inertia of the rib and, consequently, that of the panel in a vertical plane.
  • the width (e) and height (h) of the ribs (8), the size and spacing (L) of the discontinuities obviously vary with the dimensions of the covers, the thickness of the wall and the characteristics of the metal used. Tests are necessary to determine the best solution in each particular case according to the thickness and dimensions of the cover, as well as the quality of the material.
  • the two lids shown here are lids for elongated boxes
  • the rib stiffening device with ribs with discontinuities can also be successfully used on lids for large circular boxes.
  • the axis of symmetry of the cover is then that passing through the center of the panel and the axis of the tongue fixing rivet.
  • the surface of the panel is divided into triangles or asymmetrical curvilinear quadrilaterals irregular by the folds joining the discontinuities of the rib, on either side of the axis.
  • a peripheral rib (8) comprising discontinuities can equally well be used on panels (3) whose incision (2) is not completely closed but is interrupted over a certain length, for example at the rear of the panel . This provision encourages the consumer not to completely tear the panel of the cover and to leave it attached to the box by the connecting tab which remains at the location of the interruption of the incision.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Food-Manufacturing Devices (AREA)
  • Table Equipment (AREA)
  • Packages (AREA)
EP82420036A 1981-03-20 1982-03-18 Leicht zu öffnender Behälter mit Aufreisslasche und Aufreisslinie Expired EP0061980B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82420036T ATE9306T1 (de) 1981-03-20 1982-03-18 Leicht zu oeffnender behaelter mit aufreisslasche und aufreisslinie.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8106035 1981-03-20
FR8106035A FR2502122B1 (fr) 1981-03-20 1981-03-20 Couvercle a ouverture facile, a languette d'arrachage et ligne d'incision

Publications (2)

Publication Number Publication Date
EP0061980A1 true EP0061980A1 (de) 1982-10-06
EP0061980B1 EP0061980B1 (de) 1984-09-12

Family

ID=9256651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420036A Expired EP0061980B1 (de) 1981-03-20 1982-03-18 Leicht zu öffnender Behälter mit Aufreisslasche und Aufreisslinie

Country Status (5)

Country Link
EP (1) EP0061980B1 (de)
AT (1) ATE9306T1 (de)
DE (1) DE3260691D1 (de)
ES (1) ES277879Y (de)
FR (1) FR2502122B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602485A1 (fr) * 1986-08-06 1988-02-12 Franpac Couvercle metallique a panneaux d'ouverture pre-incise
WO2011073593A1 (fr) * 2009-12-17 2011-06-23 Impress Group Bv Couvercle metallique monobloc avec ligne d'amorce de rupture en forme de parallelogramme
WO2020152439A1 (en) * 2019-01-23 2020-07-30 Crown Packaging Technology, Inc. Easy open end with increased panel stiffness
RU2811781C2 (ru) * 2019-01-23 2024-01-17 Эвиозис Пэкеджинг Свитцерланд ГмбХ Легко открываемая торцевая крышка с увеличенной жесткостью панели

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR407604A (fr) * 1909-10-05 1910-03-07 Leon Delpeut Dispositif d'ouverture pour boites métalliques
US2085200A (en) * 1933-03-08 1937-06-29 Transitoria Ab Closed container such as preserving cans
FR950090A (fr) * 1946-12-02 1949-09-16 Lofts Canning Patents Ltd Fermeture par couvercle nervuré pour bidons, tonnelets, boîtes métalliques ou récipients analogues
FR1215451A (fr) * 1958-07-12 1960-04-19 Inst Portugues De Conservas De Tampon-couvercle pour boîtes de conserves
FR2000528A1 (de) * 1968-01-22 1969-09-12 Cebal Gp
FR2074598A1 (de) * 1970-01-08 1971-10-08 Cebal Gp
US3698590A (en) * 1968-02-16 1972-10-17 Cookson Sheet Metal Dev Ltd Frangible elements in sheet material
FR2158505A1 (de) * 1971-11-03 1973-06-15 Nat Can Corp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR407604A (fr) * 1909-10-05 1910-03-07 Leon Delpeut Dispositif d'ouverture pour boites métalliques
US2085200A (en) * 1933-03-08 1937-06-29 Transitoria Ab Closed container such as preserving cans
FR950090A (fr) * 1946-12-02 1949-09-16 Lofts Canning Patents Ltd Fermeture par couvercle nervuré pour bidons, tonnelets, boîtes métalliques ou récipients analogues
FR1215451A (fr) * 1958-07-12 1960-04-19 Inst Portugues De Conservas De Tampon-couvercle pour boîtes de conserves
FR2000528A1 (de) * 1968-01-22 1969-09-12 Cebal Gp
US3698590A (en) * 1968-02-16 1972-10-17 Cookson Sheet Metal Dev Ltd Frangible elements in sheet material
FR2074598A1 (de) * 1970-01-08 1971-10-08 Cebal Gp
FR2158505A1 (de) * 1971-11-03 1973-06-15 Nat Can Corp

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602485A1 (fr) * 1986-08-06 1988-02-12 Franpac Couvercle metallique a panneaux d'ouverture pre-incise
EP0256920A1 (de) * 1986-08-06 1988-02-24 Franpac (S.A.) Aus Metall bestehender Deckel mit vorgekerbter Aufreissfläche
WO2011073593A1 (fr) * 2009-12-17 2011-06-23 Impress Group Bv Couvercle metallique monobloc avec ligne d'amorce de rupture en forme de parallelogramme
FR2954290A1 (fr) * 2009-12-17 2011-06-24 Impress Group Bv Couvercle metallique monobloc avec ligne d'amorce de rupture en forme de parallelogramme
WO2020152439A1 (en) * 2019-01-23 2020-07-30 Crown Packaging Technology, Inc. Easy open end with increased panel stiffness
GB2580900A (en) * 2019-01-23 2020-08-05 Crown Packaging Technology Inc Easy open end with increased panel stiffness
GB2580900B (en) * 2019-01-23 2021-05-19 Crown Packaging Technology Inc Can end with ribs to increase panel stiffness
RU2811781C2 (ru) * 2019-01-23 2024-01-17 Эвиозис Пэкеджинг Свитцерланд ГмбХ Легко открываемая торцевая крышка с увеличенной жесткостью панели
US12084225B2 (en) 2019-01-23 2024-09-10 Crown Packaging Technology, Inc. Easy open end with increased panel stiffness

Also Published As

Publication number Publication date
EP0061980B1 (de) 1984-09-12
FR2502122A1 (fr) 1982-09-24
ES277879Y (es) 1985-06-16
FR2502122B1 (fr) 1985-07-05
ES277879U (es) 1984-12-16
ATE9306T1 (de) 1984-09-15
DE3260691D1 (en) 1984-10-18

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