EP0039671B1 - Oversealing cap - Google Patents

Oversealing cap Download PDF

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Publication number
EP0039671B1
EP0039671B1 EP19790901524 EP79901524A EP0039671B1 EP 0039671 B1 EP0039671 B1 EP 0039671B1 EP 19790901524 EP19790901524 EP 19790901524 EP 79901524 A EP79901524 A EP 79901524A EP 0039671 B1 EP0039671 B1 EP 0039671B1
Authority
EP
European Patent Office
Prior art keywords
strip
capsule
skirt
cap
lines
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
Application number
EP19790901524
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German (de)
French (fr)
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EP0039671A1 (en
Inventor
Pierre Babiol
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.)
Societe Nouvelle de Bouchons Plastiques SNBP
Original Assignee
Societe Nouvelle de Bouchons Plastiques SNBP
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 Societe Nouvelle de Bouchons Plastiques SNBP filed Critical Societe Nouvelle de Bouchons Plastiques SNBP
Priority to AT79901524T priority Critical patent/ATE4883T1/en
Publication of EP0039671A1 publication Critical patent/EP0039671A1/en
Application granted granted Critical
Publication of EP0039671B1 publication Critical patent/EP0039671B1/en
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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/62—Secondary protective cap-like outer covers for closure members

Definitions

  • the present invention relates to improvements made to overcapping capsules, more particularly although not exclusively of the kind described in French patent application FR-A-2 342 214 in the name of the present applicant and which includes a skirt of very thin.
  • Such a capsule is described in document FR-A-2108 783. Also described in prior document FR-A-2 313 278 is a conventional shutter of normal thickness, the inner face of the guarantee strip having short ribs. at a single thinning line.
  • the problem of stiffening the guarantee strip does not arise due to its thickness which does not allow any buckling, in addition the short ribs cannot play a reinforcing role.
  • the problem of buckling does not arise from the fact that the strip is joined only by one edge to the shutter.
  • the inner face of the tear-off strip of a thin-skirted overcap capsule is made up of spaced vertical ribs whose thickness suddenly decreases and becomes zero at its edges which are delimited by the lines d 'thinning of the skirt.
  • an overcap capsule assigned the general reference 1, and which is intended to be placed on the neck of a bottle in order to close it, to constitute an element of guarantee of its content, and / or to decorate it.
  • the capsule shown is that which is the subject of French patent application FR-A-2 342 214 but the invention can naturally be applied to any capsule with a tearable strip.
  • the capsule 1 shown in fig. 1 comprises a tubular body or skirt 2 closed at one of its ends by a bottom 3 whose connection with the skirt is provided with lights 4 intended for the evacuation of air during the positioning of the capsule.
  • a retaining ring 5 is provided inside the skirt 2 to allow the capsule 1 and the aforementioned neck to be joined together by snap-fastening the ring under the ring of this neck.
  • a tear-away guarantee strip 6 has been made in the skirt.
  • the strip 6 is connected to the skirt by two peripheral grooves made in the thickness of the skirt from the inside and which determine two thinning lines 7, 8. These grooves have a triangular shape in cross section if although in fact the guarantee strip is connected to the skirt only by two very thinned edges integral one 6a of the strip 6, the other 2a of the skirt 2.
  • vertical ribs 9 are spaced apart from each other on the inside of the tearable strip, the thickness of which is intended to increase the moment of inertia of the section of the strip 6 so as to avoid its deformation during the force-fitting of the capsule by axial action on its bottom 3.
  • the thickness of the ribs 9 is determined as a function of that of the strip and of the force to be applied to the bottom 3 of the capsule so that its skirt comes to surround the neck 10 of a bottle (fig. 3).
  • the thickness of each rib suddenly decreases and becomes zero at each edge 2a, 6a.
  • a cut-out or a cut 11 is made in the capsule once molded -by means of a shaped tool of gouge which cuts right through the strip 6 (fig. 1).
  • This gouge is preferably arranged obliquely relative to the periphery of said strip, that is to say that it is oriented in a non-normal manner at this periphery.
  • the user introduces the nail or an instrument into the cutout 11 so as to spread the end 6b of this strip which in fact constitutes a gripping tab.
  • the adhesion of the fingers with this tab is improved, which facilitates tearing.

Abstract

Oversealing cap. The strip thereof (6) comprises on its lower face vertical ribs (9) spaced from each other and of which the end gradually decreases in height to become nil at the weakening lines (7, 8) which connect the strip to the skirt (2) of the cap. Application to the cutting technology.

Description

La présente invention est relative à des perfectionnements apportés aux capsules de surbouchage, plus particulièrement bien que non exclusivement du genre de celle décrite dans la demande de brevet français FR-A-2 342 214 au nom de la présente demanderesse et qui comporte une jupe de très faible épaisseur.The present invention relates to improvements made to overcapping capsules, more particularly although not exclusively of the kind described in French patent application FR-A-2 342 214 in the name of the present applicant and which includes a skirt of very thin.

Les dispositifs du genre en question sont particulièrement appréciés lorsqu'ils sont pourvus d'une bande déchirable. La mise en oeuvre d'une telle bande entraîne nécessairement la création d'une zone fragile du fait qu'elle est précisément reliée à la jupe de la capsule par des lignes d'amincissement à faible résistance. On assiste souvent à la rupture de la capsule au niveau de ces lignes lors de sa mise en place sur le goulot d'une bouteille et plus particulièrement lorsque cette mise en place s'effectue en exerçant un effort important sur le fond de la capsule.Devices of the kind in question are particularly appreciated when they are provided with a tearable strip. The implementation of such a band necessarily results in the creation of a fragile zone because it is precisely connected to the skirt of the capsule by thinning lines with low resistance. There is often a rupture of the capsule at these lines when it is placed on the neck of a bottle and more particularly when this position is carried out by exerting a great effort on the bottom of the capsule.

Une telle capsule est décrite dans le document FR-A-2108 783. On a aussi décrit dans le document antérieur FR-A-2 313 278 un obturateur usuel d'épaisseur normale dont la face intérieure de la bande de garantie comporte de courtes nervures au niveau d'une seule ligne d'amincissement.Such a capsule is described in document FR-A-2108 783. Also described in prior document FR-A-2 313 278 is a conventional shutter of normal thickness, the inner face of the guarantee strip having short ribs. at a single thinning line.

Dans le document US-A-4 066 181 un obturateur usuel d'épaisseur normale est associé par son bord inférieur à une bande de garantie dont la face extérieure est pourvue de nervures.In document US-A-4,066,181 a conventional shutter of normal thickness is associated by its lower edge with a guarantee strip whose external face is provided with ribs.

Dans le premier cas le problème de raidir la bande de garantie ne se pose pas du fait de son épaisseur qui n'autorise aucun flambage, en outre les courtes nervures ne peuvent jouer un rôle de renfort. Dans le second cas le problème de flambage ne se pose pas du fait que la bande n'est réunie que par un seul bord à l'obturateur.In the first case the problem of stiffening the guarantee strip does not arise due to its thickness which does not allow any buckling, in addition the short ribs cannot play a reinforcing role. In the second case the problem of buckling does not arise from the fact that the strip is joined only by one edge to the shutter.

Les perfectionnements qui font l'objet de la présente invention visent à remédier aux inconvénients des dispositifs antérieurs à paroi mince et à permettre la réalisation d'une bande de déchirage susceptible :

  • - de ne pas s'affaisser au moment de la pose de la capsule en vue d'éviter la rupture des lignes d'amincissement qui la déterminent ;
  • - d'arrêter un mauvais déchirage de la bande de garantie c'est-à-dire qui ne suivrait pas les lignes d'amincissement ;
  • - d'augmenter l'adhérence de la bande de déchirage lorsque l'utilisateur la saisit.
The improvements which are the subject of the present invention aim to remedy the drawbacks of prior devices with a thin wall and to allow the production of a tear strip capable of:
  • - not to sag when installing the capsule in order to avoid breaking the thinning lines which determine it;
  • - to stop a bad tearing of the guarantee strip, that is to say that would not follow the thinning lines;
  • - to increase the adhesion of the tear strip when the user grasps it.

Suivant l'invention on fait comporter à la face intérieure de la bande de déchirage d'une capsule de surbouchage à jupe mince des nervures verticales espacées dont l'épaisseur diminue brutalement pour devenir nulle au niveau de ses bords qui sont délimités par les lignes d'amincissement de la jupe.According to the invention, the inner face of the tear-off strip of a thin-skirted overcap capsule is made up of spaced vertical ribs whose thickness suddenly decreases and becomes zero at its edges which are delimited by the lines d 'thinning of the skirt.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Figure 1 est une vue en élévation avec arrachements d'une capsule de surbouchage dont la bande déchirable comporte application des perfectionnements suivant l'invention.
  • Figure 2 en est une coupe partielle à plus grande échelle.
  • Figure 3 est une vue semblable à celle de fig. 1, mais montrant le début du déchirage de la bande de garantie.
  • Figure 4 illustre à grande échelle la manière dont les nervures suivant l'invention évitent un mauvais déchirage de la bande de garantie.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Figure 1 is an elevational view with cutaway of an overcap capsule whose tearable strip comprises application of improvements according to the invention.
  • Figure 2 is a partial section on a larger scale.
  • Figure 3 is a view similar to that of FIG. 1, but showing the beginning of the tearing of the guarantee strip.
  • Figure 4 illustrates on a large scale how the ribs according to the invention prevent incorrect tearing of the guarantee strip.

On a représenté en fig. 1 une capsule de surbouchage affectée de la référence générale 1, et qui est destinée à être placée sur le goulot d'une bouteille en vue de l'obturer, de constituer élément de garantie de son contenu, et/ou de la décorer. La capsule représentée est celle qui fait l'objet de la demande de brevet français FR-A-2 342 214 mais l'invention peut naturellement être appliquée à toute capsule à bande déchirable.There is shown in fig. 1 an overcap capsule assigned the general reference 1, and which is intended to be placed on the neck of a bottle in order to close it, to constitute an element of guarantee of its content, and / or to decorate it. The capsule shown is that which is the subject of French patent application FR-A-2 342 214 but the invention can naturally be applied to any capsule with a tearable strip.

La capsule 1 représentée en fig. 1 comprend un corps tubulaire ou jupe 2 fermé à l'une de ses extrémités par un fond 3 dont la liaison avec la jupe est pourvue de lumières 4 destinées à l'évacuation de l'air lors de la mise en place de la capsule. Un jonc de retenue 5 est prévu à l'intérieur de la jupe 2 pour permettre la solidarisation de la capsule 1 et du goulot précité par encliquetage du jonc sous la bague de ce goulot.The capsule 1 shown in fig. 1 comprises a tubular body or skirt 2 closed at one of its ends by a bottom 3 whose connection with the skirt is provided with lights 4 intended for the evacuation of air during the positioning of the capsule. A retaining ring 5 is provided inside the skirt 2 to allow the capsule 1 and the aforementioned neck to be joined together by snap-fastening the ring under the ring of this neck.

Entre le jonc 5 et le fond 3 on a ménagé dans la jupe une bande de garantie déchirable 6. Comme plus particulièrement montré en fig. 2, la bande 6 est reliée à la jupe par deux saignées périphériques pratiquées dans l'épaisseur de la jupe à partir de l'intérieur et qui déterminent deux lignes d'amincissement 7, 8. Ces saignées présentent en section transversale une forme triangulaire si bien qu'en fait la bande de garantie n'est reliée à la jupe que par deux rebords très amincis solidaires l'un 6a de la bande 6, l'autre 2a de la jupe 2.Between the ring 5 and the bottom 3, a tear-away guarantee strip 6 has been made in the skirt. As more particularly shown in FIG. 2, the strip 6 is connected to the skirt by two peripheral grooves made in the thickness of the skirt from the inside and which determine two thinning lines 7, 8. These grooves have a triangular shape in cross section if although in fact the guarantee strip is connected to the skirt only by two very thinned edges integral one 6a of the strip 6, the other 2a of the skirt 2.

Lorsque de telles capsules doivent être mises en place sur le goulot d'une bouteille en agissant axialement sur leur fond 3 on conçoit aisément que sous l'effort, la bande 6 fléchit ce qui entraîne dans la plupart des cas la rupture des lignes d'amincissement 7, 8 au niveau des rebords 2a, 6a.When such capsules must be put in place on the neck of a bottle by acting axially on their bottom 3 it is easily understood that under stress, the band 6 flexes, which in most cases leads to the breaking of the lines of thinning 7, 8 at the edges 2a, 6a.

Conformément à l'invention on ménage sur la face intérieure de la bande déchirable des nervures verticales 9 espacées les unes des autres et dont l'épaisseur est destinée à augmenter le moment d'inertie de la section de la bande 6 de manière à éviter sa déformation lors de la mise en place à force de la capsule par action axiale sur son fond 3.In accordance with the invention, vertical ribs 9 are spaced apart from each other on the inside of the tearable strip, the thickness of which is intended to increase the moment of inertia of the section of the strip 6 so as to avoid its deformation during the force-fitting of the capsule by axial action on its bottom 3.

L'épaisseur des nervures 9 est déterminée en fonction de celle de la bande et de l'effort à appliquer sur le fond 3 de la capsule pour que sa jupe vienne entourer le goulot 10 d'une bouteille (fig. 3). L'épaisseur de chaque nervure diminue brusquement pour devenir nulle au niveau de chaque rebord 2a, 6a.The thickness of the ribs 9 is determined as a function of that of the strip and of the force to be applied to the bottom 3 of the capsule so that its skirt comes to surround the neck 10 of a bottle (fig. 3). The thickness of each rib suddenly decreases and becomes zero at each edge 2a, 6a.

De manière à constituer en une zone quelconque de la bande 6 une extrémité 6b aisément accessible à l'utilisateur en vue de permettre son déchirage, on effectue dans la capsule une fois moulée un découpage ou insculpation 11 -au moyen d'un outil en forme de gouge qui découpe de part en part la bande 6 (fig. 1). Cette gouge est préférablement disposée obliquement par rapport à la périphérie de ladite bande, c'est-à-dire qu'elle est orientée de manière non normale à cette périphérie.So as to constitute in any zone of the strip 6 an end 6b easily accessible to the user in order to allow it to be torn, a cut-out or a cut 11 is made in the capsule once molded -by means of a shaped tool of gouge which cuts right through the strip 6 (fig. 1). This gouge is preferably arranged obliquely relative to the periphery of said strip, that is to say that it is oriented in a non-normal manner at this periphery.

Pour effectuer le déchirage de la bande 6 l'utilisateur introduit l'ongle ou un instrument dans le découpage 11 de manière à écarter l'extrémité 6b de cette bande qui constitue en fait une patte de préhension. Comme sa face intérieure est revêtue de nervures 9 l'adhérence des doigts avec cette patte est améliorée, ce qui facilite le déchirage. Lorsqu'on a affaire à une bande de garantie habituelle on assiste souvent à un mauvais déchirage de ses lignes d'amincissement. Autrement dit, il arrive parfois qu'une ligne de découpe s'amorce hors de la ligne d'amincissement et intéresse la bande elle-même qui se trouve alors sectionnée. Il devient impossible à ce moment de terminer l'arrachage de cette bande. Au contraire grâce à l'invention si une amorce de découpe s'effectue dans la hauteur de la bande de garantie 6 par exemple suivant la ligne 12 représentée en traits mixtes en fig.4, cette amorce vient aboutir contre la base de la nervure 9 suivante de telle sorte que sous l'effort d'arrachage il se produit une déchirure de la bande le long de ladite base et en direction de la saignée 7, 8 correspondante. Ainsi l'arrachement est redressé chaque fois qu'il se présente une amorce intempestive de découpe qui diverge de la zone de déchirage prévue.To tear the strip 6, the user introduces the nail or an instrument into the cutout 11 so as to spread the end 6b of this strip which in fact constitutes a gripping tab. As its inner face is coated with ribs 9 the adhesion of the fingers with this tab is improved, which facilitates tearing. When dealing with a usual guarantee strip, we often witness a poor tearing of its thinning lines. In other words, it sometimes happens that a cutting line starts outside the thinning line and involves the strip itself which is then cut. It becomes impossible at this time to finish tearing off this strip. On the contrary thanks to the invention if a cutting initiation is carried out in the height of the guarantee strip 6 for example along the line 12 shown in phantom in fig.4, this initiation comes against the base of the rib 9 next so that under the pulling force there is a tear in the strip along said base and in the direction of the corresponding groove 7, 8. Thus the tearing is straightened each time an untimely cutting initiation occurs which diverges from the planned tearing zone.

Claims (2)

1. A capping seal made of plastics material of the type realised in the form of a circular bottom (3) integral with a substantially cylindrical thin skirt (2) which includes two lines of lesser resistance (7, 8) defining a tearable guarantee strip (6), characterised in that the inner face of the said strip (6) is provided with spaced vertical ribs (9) the thickness of which decreases suddenly to become nil at the level of its edges which are defined by the thinning-down lines (7, 8) of the thin skirt (2).
2. A capping seal in accordance with claim 1, characterised in that the known « per se" notch (11) of the guarantee strip (6) is formed in a stage after the moulding.
EP19790901524 1979-11-13 1979-11-13 Oversealing cap Expired EP0039671B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79901524T ATE4883T1 (en) 1979-11-13 1979-11-13 PROTECTIVE CAP.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1979/000105 WO1981001399A1 (en) 1979-11-13 1979-11-13 Improvement to oversealing caps

Publications (2)

Publication Number Publication Date
EP0039671A1 EP0039671A1 (en) 1981-11-18
EP0039671B1 true EP0039671B1 (en) 1983-10-05

Family

ID=9220438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790901524 Expired EP0039671B1 (en) 1979-11-13 1979-11-13 Oversealing cap

Country Status (4)

Country Link
EP (1) EP0039671B1 (en)
JP (1) JPS56501759A (en)
DE (1) DE2966276D1 (en)
WO (1) WO1981001399A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2108783B1 (en) * 1970-10-05 1974-09-06 Remy
JPS5341652Y2 (en) * 1974-07-03 1978-10-06
FR2313278A1 (en) * 1975-06-04 1976-12-31 Astra Plastique Sealed capsule for closing bottles - is moulded in single element with weak sections forming tear-off tab
JPS5252851U (en) * 1975-10-14 1977-04-15
US4066181A (en) * 1976-03-16 1978-01-03 Buckeye Molding Company Container and closure assembly

Also Published As

Publication number Publication date
DE2966276D1 (en) 1983-11-10
WO1981001399A1 (en) 1981-05-28
JPS56501759A (en) 1981-12-03
EP0039671A1 (en) 1981-11-18

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