EP0773173A1 - Bottle closure - Google Patents

Bottle closure Download PDF

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Publication number
EP0773173A1
EP0773173A1 EP96107149A EP96107149A EP0773173A1 EP 0773173 A1 EP0773173 A1 EP 0773173A1 EP 96107149 A EP96107149 A EP 96107149A EP 96107149 A EP96107149 A EP 96107149A EP 0773173 A1 EP0773173 A1 EP 0773173A1
Authority
EP
European Patent Office
Prior art keywords
piece
clamping piece
bottle
clamping
sealing
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Withdrawn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
EP96107149A
Other languages
German (de)
French (fr)
Inventor
Heinz Trautmann
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.)
Poppe and Co Giessener Gummiwarenfabrik & Co KG GmbH
Original Assignee
Poppe and Co Giessener Gummiwarenfabrik & Co KG 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 Poppe and Co Giessener Gummiwarenfabrik & Co KG GmbH filed Critical Poppe and Co Giessener Gummiwarenfabrik & Co KG GmbH
Publication of EP0773173A1 publication Critical patent/EP0773173A1/en
Withdrawn legal-status Critical Current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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/04—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails
    • B65D45/06—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface comprising U-shaped or bifurcated members coacting with containers these members remaining connected with the closure and with the container when the container is open, e.g. pivoted bails associated with toggle levers, e.g. swing stopper arrangements
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0052—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in more than one piece
    • B65D39/0082—Swing or hinged stoppers, e.g. for "Grolsch"-type bottles

Definitions

  • the invention relates to a bottle stopper with a closure part which blocks the pouring opening of a bottle and which is reusably fastened to the bottle and which consists of a clamping piece and a sealing piece connected to the clamping piece, the clamping piece having a clamping surface with which the sealing piece can be placed on the pouring opening.
  • Such bottle caps have been known for a long time and are widely used in bottles filled with drinks. They have the advantage that a bottle can be resealed securely once part of the content has been removed.
  • a bottle stopper comprises a closure part which can be tensioned by means of a wire-shaped bow spring which is captively attached to the bottle neck.
  • the closure part consists in two parts of a clamping piece made of a hard, inelastic material with a transverse bore in which a clamping bracket of the bow spring is arranged, and a sealing piece made of an elastic sealing material, in particular a soft one Sealing rubber.
  • the rotationally symmetrical sealing piece can be pulled with a central, circular opening over an axial pin of the clamping piece directed into the interior of the bottle and then lies against an approximately frustoconical or spherical segment-shaped clamping surface of the clamping piece; it is applied to the pouring opening by a spring force provided by the bow spring on the clamping surface and acting as a closing force when a further, pivotable clamping bracket has been pivoted against the bottle neck.
  • the details of such a bow spring are generally known, have no direct connection with the invention and therefore do not need to be explained further.
  • closure parts are relatively expensive; the clamping piece and the sealing piece must be made separately from each other and later completed with each other and with the clip spring to the bottle cap and attached to the bottle neck. As a result, they are increasingly being replaced by (much less environmentally friendly) closures which, unlike the bottle itself, are not reusable.
  • a further disadvantage of such a closure part is that cultures of microorganisms can form on the usual rubber sealing pieces if the bottle is used for storing beverages. especially at its contact surface with the clamping piece.
  • the invention has therefore set itself the task of eliminating the disadvantages described and a bottle stopper of the type specified in the introduction, and in particular to design its closure part in such a way that its manufacture can be made considerably cheaper without the advantageous properties of such a bottle stopper, for example reusability of the closure part, would have to be abandoned.
  • the bottle stopper should also be fully usable for food.
  • the object is achieved in that the closure part is designed as a composite element and the clamping piece consists of a thermoplastic or thermosetting plastic, for example polypropylene, which is not or only slightly elastically deformable by the closing force, which loads the closure part, but the sealing piece, on the other hand, consists of one of the same Closing force significantly deformable and highly elastic thermoplastic, sprayable plastic, for example a thermoplastic elastomer.
  • the sealing piece is sprayed onto the clamping piece.
  • Such a closure part according to the invention can be produced in one go in the same tool and requires no further effort to connect the two parts to one another; It is particularly advantageous if, for this purpose, the sealing piece is also formed in an injection mold after the clamping piece has been produced thereon.
  • the clamping piece can be provided with a cross hole without difficulty in which engages in a known manner a clamping bracket of a bracket spring attached to the bottle neck, with which a sealing force can be generated in this way on the clamping surface of the closure part.
  • the bottle stopper according to the invention has, in addition to the actual task, further advantages over the known prior art.
  • the closure part which is now designed as a composite element, meets the requirements of a consistently hygienic design better than before, as is particularly desirable for use with drinks: between the two parts of the composite element there can be no liquid film of the beverage or - before refilling - one Train and fix the detergent.
  • Both plastics used are odorless and tasteless, and accordingly the closure part according to the invention is also ideally suited for use with food from this side. They can be kept free of nitrosamines and are 100% reusable as secondary raw materials if they are actually no longer to be used as a bottle cap.
  • the sprayed-on sealing piece forms a positive connection with the clamping piece, in particular in that it forms a radially directed positive connection with the essentially rotationally symmetrical clamping piece.
  • the sprayed-on sealing piece forms a positive connection with the clamping piece, in particular in that it forms a radially directed positive connection with the essentially rotationally symmetrical clamping piece.
  • an axial positive locking as is known for the closure parts from the prior art.
  • Such a form fit supports the durability of the material bond between the two parts of the closure part according to the invention.
  • the invention leads to a considerable improvement in a reusable bottle stopper which, in conjunction with the other, in particular ecological advantages of such an arrangement, is able to promote its extensive use.
  • the invention is explained below with reference to the drawing using an exemplary embodiment.
  • the single figure shows a closure part according to the invention for a reusable bottle closure of the type specified in the introduction.
  • An essentially rotationally symmetrical closure part V according to the invention is designed as a composite element and consists of a clamping piece S and a sealing piece D, which are integrally connected to one another on a clamping surface SF of the clamping piece S, for example by spraying the sealing piece D onto the clamping surface SF.
  • Both the clamping piece S and the sealing piece D consist of a sprayable plastic.
  • a slightly elastically deformable thermoplastic or thermosetting plastic such as polypropylene is appropriate, because the clamping piece S has no sealing function and should instead be particularly dimensionally stable, so that the spring force of the clamping piece S in the direction of the sealing piece D is kept as long as possible remains.
  • This spring force forms the sealing force on a sealing surface DF of the sealing piece D, which is pressed against the pouring opening of a bottle to be closed when the clip spring attached to the bottle neck is tensioned; the details of such an arrangement are well known and are not discussed in the drawing.
  • an associated transverse bore SQ is drawn in the clamping piece S, in which (on both sides) a clamping bracket of the bow spring can be inserted. The introduction is facilitated by conical countersinks SS.
  • the sealing piece D is sprayed onto a lenticular pressure piece SD on the clamping piece S, which runs out in the closing direction of the closure part V into a central cylindrical pin SZ which, like the clamping surface SF on the pressure piece SD, is overmolded with the plastic of the sealing piece D. .
  • the sealing piece D is also connected to the clamping piece S in a form-fitting manner, at least in the radial direction.
  • the sealing piece D consists of an injectable, highly deformable and highly elastic thermoplastic, injectable plastic, for example a thermoplastic elastomer, under the action of the closing force provided by the clip spring. Nevertheless, a deformation of the sealing piece D is limited in use because the sealing piece D has only a slight wall thickness d, which is approximately the same everywhere here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)
  • Closures For Containers (AREA)

Abstract

The bottle closure has a spring-loaded closure section (V) fitted in the bottle neck. An elastic sealing element (D) is combined with a tensioning element (S) with a surface (SF) which acts against the sealing element to press it into contact with the bottle opening. The sealing element and the tensioning element are each formed via injection moulding. The former is made of a thermoplastics elastomer and the latter is made of an elastically-deformable thermo or duroplastics material.

Description

Die Erfindung betrifft einen Flaschenverschluß mit einem die Ausgießöffnung einer Flasche absperrenden, an der Flasche wiederverwendbar befestigten Verschlußteil, das aus einem Spannstück und einem mit dem Spannstück verbundenen Dichtstück besteht, wobei das Spannstück eine Spannfläche aufweist, mit der das Dichtstück an die Ausgießöffnung anlegbar ist.The invention relates to a bottle stopper with a closure part which blocks the pouring opening of a bottle and which is reusably fastened to the bottle and which consists of a clamping piece and a sealing piece connected to the clamping piece, the clamping piece having a clamping surface with which the sealing piece can be placed on the pouring opening.

Derartige Flaschenverschlüsse sind seit langem bekannt und werden bei mit Getränken gefüllten Flaschen in großem Umfang verwendet. Sie haben den Vorteil, daß eine Flasche sicher wiederverschließbar ist, wenn erst ein Teil des Inhaltes entnommen worden ist. Ein solcher Flaschenverschluß umfaßt ein Verschlußteil, das mittels einer drahtförmigen Bügelfeder gespannt werden kann, welche unverlierbar an dem Flaschenhals befestigt ist.Such bottle caps have been known for a long time and are widely used in bottles filled with drinks. They have the advantage that a bottle can be resealed securely once part of the content has been removed. Such a bottle stopper comprises a closure part which can be tensioned by means of a wire-shaped bow spring which is captively attached to the bottle neck.

Das Verschlußteil besteht dabei zweigeteilt aus einem Spannstück aus einem harten, unelastischen Werkstoff mit einer Querbohrung, in der ein Spannbügel der Bügelfeder angeordnet ist, und aus einem Dichtstück aus einem elastischen Dichtwerkstoff, insbesondere einem weichen Dichtgummi. Das rotationssymmetrische Dichtstück kann mit einer mittigen, kreisförmigen Öffnung über einen axialen, in das Innere der Flasche gerichteten Zapfen des Spannstückes gezogen werden und liegt dann an einer etwa kegelstumpf- oder kugelsegmentförmigen Spannfläche des Spannstückes an; es wird von einer von der Bügelfeder an der Spannfläche bereitgestellten, als Schließkraft wirkenden Federkraft an der Ausgießöffnung angelegt, wenn ein weiterer, schwenkbarer Spannbügel gegen den Flaschenhals verschwenkt worden ist. Die Einzelheiten einer solchen Bügelfeder sind allgemein bekannt, stehen in keinem unmittelbaren Zusammenhang mit der Erfindung und müssen demzufolge nicht weiter erläutert werden.The closure part consists in two parts of a clamping piece made of a hard, inelastic material with a transverse bore in which a clamping bracket of the bow spring is arranged, and a sealing piece made of an elastic sealing material, in particular a soft one Sealing rubber. The rotationally symmetrical sealing piece can be pulled with a central, circular opening over an axial pin of the clamping piece directed into the interior of the bottle and then lies against an approximately frustoconical or spherical segment-shaped clamping surface of the clamping piece; it is applied to the pouring opening by a spring force provided by the bow spring on the clamping surface and acting as a closing force when a further, pivotable clamping bracket has been pivoted against the bottle neck. The details of such a bow spring are generally known, have no direct connection with the invention and therefore do not need to be explained further.

Die Herstellung derartiger Verschlußteile ist relativ teuer; das Spannstück und das Dichtstück müssen voneinander getrennt angefertigt und später miteinander und mit der Bügelfeder zu dem Flaschenverschluß komplettiert und an dem Flaschenhals befestigt werden. Infolgedessen werden sie in zunehmenden Maße von (viel weniger umweltverträglichen) Verschlüssen abgelöst, die, im Gegensatz zu der Flasche selbst, nicht wiederverwendbar sind.The manufacture of such closure parts is relatively expensive; the clamping piece and the sealing piece must be made separately from each other and later completed with each other and with the clip spring to the bottle cap and attached to the bottle neck. As a result, they are increasingly being replaced by (much less environmentally friendly) closures which, unlike the bottle itself, are not reusable.

Der Ersatz des keramischen Spannstückes durch ein solches aus einem harten, unelastischen Kunststoff schafft hierbei keine Abhilfe, selbst wenn das Spannstück etwas billiger herstellbar und nun auch unzerbrechlich ist.Replacing the ceramic clamping piece with one made of a hard, inelastic plastic does not remedy this, even if the clamping piece is somewhat cheaper to manufacture and is now also unbreakable.

Ein weiterer Nachteil eines solchen Verschlußteiles besteht darin, daß sich an den üblichen Dichtstücken aus Gummi Kulturen von Mikroorganismen ausbilden können, wenn die Flasche zur Aufbewahrung von Getränken dient, insbesondere an dessen Kontaktfläche mit dem Spannstück.A further disadvantage of such a closure part is that cultures of microorganisms can form on the usual rubber sealing pieces if the bottle is used for storing beverages. especially at its contact surface with the clamping piece.

Die Erfindung hat sich deshalb die Aufgabe gestellt, die beschriebenen Nachteile zu beseitigen und einen Flaschenverschluß der eingangs näher bezeichneten Art und dabei insbesondere dessen Verschlußteil so auszubilden, daß seine Herstellung wesentlich verbilligt werden kann, ohne daß die vorteilhaften Eigenschaften eines solchen Flaschenverschlusses, beispielsweise die Wiederverwendbarkeit des Verschlußteiles, aufgegegeben werden müßten. Dabei soll der Flaschenverschluß vollwertig auch für Lebensmittel verwendet werden können.The invention has therefore set itself the task of eliminating the disadvantages described and a bottle stopper of the type specified in the introduction, and in particular to design its closure part in such a way that its manufacture can be made considerably cheaper without the advantageous properties of such a bottle stopper, for example reusability of the closure part, would have to be abandoned. The bottle stopper should also be fully usable for food.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß das Verschlußteil als Verbundelement ausgebildet und das Spannstück aus einem durch die - das Verschlußteil belastende - Schließkraft nicht oder nur geringfügig elastisch verformbaren thermo- oder duroplastischen Kunststoff, beispielsweise Polypropylen besteht, das Dichtstück hingegen aus einem bei der gleichen Schließkraft erheblich verformbaren und hochelastischen thermoplastischen, spritzbaren Kunststoff, beispielsweise einem thermoplastischen Elastomer. In besonders bevorzugter Ausführung ist das Dichtstück auf das Spannstück aufgespritzt.According to the invention the object is achieved in that the closure part is designed as a composite element and the clamping piece consists of a thermoplastic or thermosetting plastic, for example polypropylene, which is not or only slightly elastically deformable by the closing force, which loads the closure part, but the sealing piece, on the other hand, consists of one of the same Closing force significantly deformable and highly elastic thermoplastic, sprayable plastic, for example a thermoplastic elastomer. In a particularly preferred embodiment, the sealing piece is sprayed onto the clamping piece.

Ein solches erfindungsgemäßes Verschlußteil kann in einem Zuge in dem gleichen Werkzeug hergestellt werden und erfordert keinerlei weiteren Aufwand, um beide Teile miteinander zu verbinden; besonders vorteilhaft ist es, wenn dazu in einem Spritzwerkzeug nach der Herstellung des Spannstückes auf diesem auch das Dichtstück ausgebildet wird. Das Spannstück kann dabei ohne Schwierigkeit mit einer Querbohrung versehen werden, in die in vorbekannter Weise ein Spannbügel einer an dem Flaschenhals befestigten Bügelfeder eingreift, mit dem auf diese Weise eine Dichtkraft an der Spannfläche des Verschlußteiles erzeugt werden kann. Damit sind die funktionalen Vorteile der bisherigen wiederverwendbaren Flaschenverschlüsse beibehalten.Such a closure part according to the invention can be produced in one go in the same tool and requires no further effort to connect the two parts to one another; It is particularly advantageous if, for this purpose, the sealing piece is also formed in an injection mold after the clamping piece has been produced thereon. The clamping piece can be provided with a cross hole without difficulty in which engages in a known manner a clamping bracket of a bracket spring attached to the bottle neck, with which a sealing force can be generated in this way on the clamping surface of the closure part. The functional advantages of the previous reusable bottle caps are retained.

Über die Senkung der Herstellungskosten hinaus weist aber der erfindungsgemäße Flaschenverschluß, über die eigentliche Aufgabenstellung hinaus, noch weitere Vorteile gegenüber dem bekannten Stand der Technik auf. Das nunmehr als Verbundelement ausgebildete Verschlußteil kommt den Forderungen einer durchweg hygienischen Ausführung besser als bisher nach, wie sie vor allem für die Verwendung bei Getränken dringend erwünscht ist: zwischen den beiden Teilen des Verbundelementes kann sich kein Flüssigkeitsfilm des Getränkes oder - vor einer Neubefüllung - eines Reinigungsmittels ausbilden und festsetzen. Beide verwendeten Kunststoffe sind geruchs- und geschmacksneutral, und dementsprechend ist das erfindungsgemäße Verschlußteil auch von dieser Seite her bestens zur Verwendung bei Lebensmitteln geeignet. Sie können nitrosaminfrei gehalten werden und sind hundertprozentig als Sekundär-Rohstoff wiederverwendbar, wenn sie tatsächlich nicht mehr als Flaschenverschluß dienen sollen.In addition to reducing the manufacturing costs, the bottle stopper according to the invention has, in addition to the actual task, further advantages over the known prior art. The closure part, which is now designed as a composite element, meets the requirements of a consistently hygienic design better than before, as is particularly desirable for use with drinks: between the two parts of the composite element there can be no liquid film of the beverage or - before refilling - one Train and fix the detergent. Both plastics used are odorless and tasteless, and accordingly the closure part according to the invention is also ideally suited for use with food from this side. They can be kept free of nitrosamines and are 100% reusable as secondary raw materials if they are actually no longer to be used as a bottle cap.

Zur weiteren Verbesserung des Zusammenhaltes beider Teile des Verschlußteiles kann es vorteilhaft sein, wenn das aufgespritzte Dichtstück mit dem Spannstück einen Formschluß bildet, insbesondere dadurch, daß es mit dem im wesentlichen rotationssymmetrischen Spannstück einen radial gerichteten Formschluß ausbildet. Selbstverständlich ist es darüberhinaus auch möglich, daß zusätzlich ein axialer Formschluß erfolgt, wie es bei den Verschlußteilen aus dem Stand der Technik bekannt ist. Eine solche Formschlüssigkeit unterstützt die Haltbarkeit des Stoffschlusses zwischen den beiden Teilen des erfindungsgemäßen Verschlußteiles.To further improve the cohesion of both parts of the closure part, it can be advantageous if the sprayed-on sealing piece forms a positive connection with the clamping piece, in particular in that it forms a radially directed positive connection with the essentially rotationally symmetrical clamping piece. Of course, it is also possible that in addition there is an axial positive locking, as is known for the closure parts from the prior art. Such a form fit supports the durability of the material bond between the two parts of the closure part according to the invention.

Insgesamt führt die Erfindung zu einer erhebliche Verbesserung an einem wiederverwendbaren Flaschenverschluß, die - in Verbindung mit den übrigen, insbesondere ökologischen Vorteilen einer solchen Anordnung - dessen umfassende Anwendung zu fördern in der Lage ist.Overall, the invention leads to a considerable improvement in a reusable bottle stopper which, in conjunction with the other, in particular ecological advantages of such an arrangement, is able to promote its extensive use.

Die Erfindung wird nachstehend an Hand der Zeichnung an einem Ausführungsbeispiel näher erläutert. Die einzige Figur zeigt ein erfindungsgemäßes Verschlußteil für einen wiederverwendbaren Flaschenverschluß der eingangs näher bezeichneten Art.The invention is explained below with reference to the drawing using an exemplary embodiment. The single figure shows a closure part according to the invention for a reusable bottle closure of the type specified in the introduction.

Ein im wesentlichen rotationssymmetrisches Verschlußteil V nach der Erfindung ist als Verbundelement ausgeführt und besteht aus einem Spannstück S und einem Dichtstück D, die miteinander an einer Spannfläche SF des Spannstückes S stoffschlüssig verbunden sind, beispielsweise, indem das Dichtstück D auf die Spannfläche SF aufgespritzt wird. Sowohl das Spannstück S als auch das Dichtstück D bestehen aus einem spritzfähigen Kunststoff.An essentially rotationally symmetrical closure part V according to the invention is designed as a composite element and consists of a clamping piece S and a sealing piece D, which are integrally connected to one another on a clamping surface SF of the clamping piece S, for example by spraying the sealing piece D onto the clamping surface SF. Both the clamping piece S and the sealing piece D consist of a sprayable plastic.

Für das Spannstück S ist ein geringfügig elastisch verformbarer thermo- oder duroplastischen Kunststoff wie beispielsweise Polypropylen zweckmäßig, weil das Spannstück S keinerlei Dichtfunktion ausübt und stattdessen besonders formstabil sein soll, damit die Federkraft einer das Spannstück S in Richtung des Dichtstückes D belastenden Bügelfeder möglichst lange erhalten bleibt.For the clamping piece S, a slightly elastically deformable thermoplastic or thermosetting plastic such as polypropylene is appropriate, because the clamping piece S has no sealing function and should instead be particularly dimensionally stable, so that the spring force of the clamping piece S in the direction of the sealing piece D is kept as long as possible remains.

Diese Federkraft bildet die Dichtkraft an einer Dichtfläche DF des Dichtstückes D, die an die zu verschließende Ausgießöffnung einer Flasche angepreßt ist, wenn die an dem Flaschenhals befestigte Bügelfeder gespannt wird; die Einzelheiten einer solchen Anordnung sind hinlänglich bekannt und in der Zeichnung nicht erörtert. In der Zeichnung ist aber immerhin eine zugehö-rige Querbohrung SQ in dem Spannstück S eingezeichnet, in der (beiderseits) ein Spannbügel der Bügelfeder einführbar ist. Die Einführung wird durch konische Senkungen SS erleichtert.This spring force forms the sealing force on a sealing surface DF of the sealing piece D, which is pressed against the pouring opening of a bottle to be closed when the clip spring attached to the bottle neck is tensioned; the details of such an arrangement are well known and are not discussed in the drawing. In the drawing, however, an associated transverse bore SQ is drawn in the clamping piece S, in which (on both sides) a clamping bracket of the bow spring can be inserted. The introduction is facilitated by conical countersinks SS.

Das Dichtstück D ist auf ein linsenförmiges, an dem Spannstück S einstückiges Druckstück SD aufgespritzt, das in Schließrichtung des Verschlußteiles V in einen mittigen zylindrischen Zapfen SZ ausläuft, der genauso wie die an dem Druckstück SD befindliche Spannfläche SF mit dem Kunststoff des Dichtstückes D überspritzt ist. Auf diese Weise ist das Dichtstück D, zumindest in radialer Richtung, auch noch formschlüssig mit dem Spannstück S verbunden.The sealing piece D is sprayed onto a lenticular pressure piece SD on the clamping piece S, which runs out in the closing direction of the closure part V into a central cylindrical pin SZ which, like the clamping surface SF on the pressure piece SD, is overmolded with the plastic of the sealing piece D. . In this way, the sealing piece D is also connected to the clamping piece S in a form-fitting manner, at least in the radial direction.

Das Dichtstück D besteht aus einem spritzfähigen, unter der Einwirkung der von der Bügelfeder bereitgestellten Schließkraft erheblich verformbaren und hochelastischen thermoplastischen, spritzbaren Kunststoff, beispielsweise einem thermoplastischen Elastomer. Trotzdem hält sich im Gebrauch eine Verformung des Dichtstückes D in Grenzen, weil das Dichtstück D eine nur geringfügige, hier überall etwa gleiche Wanddicke d aufweist.The sealing piece D consists of an injectable, highly deformable and highly elastic thermoplastic, injectable plastic, for example a thermoplastic elastomer, under the action of the closing force provided by the clip spring. Nevertheless, a deformation of the sealing piece D is limited in use because the sealing piece D has only a slight wall thickness d, which is approximately the same everywhere here.

Aufstellung der BezugszeichenList of reference numbers

DD
DichtstückSealing piece
DFDF
DichtflächeSealing surface
SS
SpannstückClamping piece
SDSD
DruckstückPressure piece
SFSF
SpannflächeClamping surface
SQSQ
QuerbohrungCross hole
SSSS
SenkungLowering
SZSZ
ZapfenCones
VV
VerschlußteilClosure part
dd
WanddickeWall thickness

Claims (4)

Flaschenverschluß mit einem die Ausgießöffnung einer Flasche absperrenden, an der Flasche wiederverwendbar befestigten Verschlußteil (V), das aus einem Spannstück (S) und einem mit dem Spannstück (S) verbundenen Dichtstück (D) besteht, wobei das Spannstück (S) eine Spannfläche (SF) aufweist, mit der das Dichtstück (D) an die Ausgießöffnung anlegbar ist,
dadurch gekennzeichnet, daß
das Verschlußteil (V) als Verbundelement ausgebildet und das Spannstück (S) aus einem durch die - das Verschlußteil (V) belastende - Schließkraft nicht oder nur geringfügig elastisch verformbaren thermo- oder duroplastischen Kunststoff, beispielsweise Polypropylen besteht, das Dichtstück (D) hingegen aus einem bei der gleichen Schließkraft erheblich verformbaren und hochelastischen thermoplastischen, spritzbaren Kunststoff, beispielsweise einem thermoplastischen Elastomer.Bottle stopper with a closure part (V) which blocks the pouring opening of a bottle and which is reusably fastened to the bottle and which consists of a clamping piece (S) and a sealing piece (D) connected to the clamping piece (S), the clamping piece (S) having a clamping surface ( SF) with which the sealing piece (D) can be placed against the pouring opening,
characterized in that
the closure part (V) is designed as a composite element and the clamping piece (S) consists of a closing force which is not or only slightly elastically deformable thermoplastic or thermosetting plastic, for example polypropylene, due to the - the closure part (V) loading - the sealing piece (D), however, consists of a highly deformable and highly elastic thermoplastic, sprayable plastic, for example a thermoplastic elastomer, with the same closing force. Flaschenverschluß nach Anspruch 1, dadurch gekennzeichnet, daß das Dichtstück (D) auf das Spannstück (S) aufgespritzt ist.Bottle stopper according to claim 1, characterized in that the sealing piece (D) is sprayed onto the clamping piece (S). Flaschenverschluß nach Anspruch 2, dadurch gekennzeichnet, daß das aufgespritzte Dichtstück (D) mit dem Spannstück (S) einen Formschluß bildet.Bottle stopper according to claim 2, characterized in that the sprayed-on sealing piece (D) forms a positive connection with the clamping piece (S). Flaschenverschluß nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß das aufgespritzte Dichtstück (D) mit dem im wesentlichen rotationssymmetrischen Spannstück (S) radial eine Formschluß ausbildet.Bottle stopper according to one of claims 2 or 3, characterized in that the sprayed-on sealing piece (D) forms a form fit with the essentially rotationally symmetrical clamping piece (S).
EP96107149A 1995-10-28 1996-05-07 Bottle closure Withdrawn EP0773173A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29517123U 1995-10-28
DE29517123U DE29517123U1 (en) 1995-10-28 1995-10-28 Bottle stopper

Publications (1)

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EP0773173A1 true EP0773173A1 (en) 1997-05-14

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DE (1) DE29517123U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908393A1 (en) * 1997-10-11 1999-04-14 POPPE + CO. GIESSENER GUMMIWARENFABRIK GMBH & CO. KG Bottle closure
EP1094010A1 (en) * 1999-10-22 2001-04-25 Flensburger Brauerei Emil Petersen GmbH & Co. KG Stopper for swing-closure
EP2343845A2 (en) 2009-12-31 2011-07-13 Thomson Licensing Precise compensation of video propagation duration

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29614627U1 (en) * 1996-08-23 1996-10-17 Zapf, Fritz-Werner, 96450 Coburg Closure part of a clamp closure, in particular for bottles
DE19634046C2 (en) * 1996-08-23 1999-11-11 Zapf Fritz Werner Closure part of a clamp closure, in particular for bottles
DE19742750A1 (en) 1997-09-27 1999-04-08 Zapf Fritz Werner Closure part of a clamp closure, in particular for bottles
GB2343444A (en) * 1998-11-06 2000-05-10 Metal Closures Group Ltd Moulded closure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439938A (en) * 1965-03-09 1966-05-27 Further development of mechanical caps known as system caps
DE8903447U1 (en) * 1989-03-18 1989-05-11 Bauer-Secundus, Kunz-Dieter, Dipl.-Kfm. Dr., 7570 Baden-Baden Closure lid for a swing top closure for bottles, jugs, cans or similar.
DE29504848U1 (en) * 1995-03-22 1995-05-18 Fennel Gmbh, 32549 Bad Oeynhausen Flip top closure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439938A (en) * 1965-03-09 1966-05-27 Further development of mechanical caps known as system caps
DE8903447U1 (en) * 1989-03-18 1989-05-11 Bauer-Secundus, Kunz-Dieter, Dipl.-Kfm. Dr., 7570 Baden-Baden Closure lid for a swing top closure for bottles, jugs, cans or similar.
DE29504848U1 (en) * 1995-03-22 1995-05-18 Fennel Gmbh, 32549 Bad Oeynhausen Flip top closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908393A1 (en) * 1997-10-11 1999-04-14 POPPE + CO. GIESSENER GUMMIWARENFABRIK GMBH & CO. KG Bottle closure
EP1094010A1 (en) * 1999-10-22 2001-04-25 Flensburger Brauerei Emil Petersen GmbH & Co. KG Stopper for swing-closure
EP2343845A2 (en) 2009-12-31 2011-07-13 Thomson Licensing Precise compensation of video propagation duration

Also Published As

Publication number Publication date
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