DE102018218552A1 - BOTTLE STOPPER FOR AXIAL PUTTING ON A MUFFLING AREA OF A BOTTLE AND BOTTLE WITH A MUFFLING AREA FOR AXIAL PUTTING ON A BOTTLE CAP - Google Patents

Abstract

A bottle closure for axially plugging onto a mouth region of a bottle with a mouth opening in a plug-on direction is described, the bottle closure having a side region for encompassing the mouth region and a closing region for closing the mouth opening. This bottle stopper is to be developed in such a way that a rotary screw head in a filling system is unnecessary and at the same time it is ensured that a user of the bottle has the feeling of a screw stopper when opening and closing the bottle. To solve this problem, it is proposed to provide an inner wall of the side area with catch means which serve to catch counter-catch means at the mouth area of the bottle, at least the inner wall at least partially by means of the counter-catch means or the catch means in the radial direction while the bottle cap is being pushed onto the mouth area is elastically expandable, and the catching means and the counter-catching means cooperate in such a way that the bottle cap can only be pulled off the mouth area against the plug-on direction by means of a limited rotary movement of the bottle cap relative to the mouth area by an opening angle of rotation.

Description

field of use

The present invention relates to a bottle stopper for axially fitting onto a mouth region of a bottle and to a bottle with a mouth region for axially fitting a bottle stopper. The bottle cap and the bottle are used in particular in connection with non-alcoholic or alcoholic beverages such as wine.

Technical background

It is known to fill beverage bottles in particular in automated filling systems with the respective beverage. If the bottles are to be closed with a screw cap, it is necessary to provide a screw head in the filling system, which screw the screw cap onto the mouth area of the bottle after filling the respective bottle. For this purpose, a rotary drive is to be provided which can apply a rotary movement to the screw head. The need to provide a rotary screw head makes the filling system complex and therefore comparatively expensive.

Presentation of the invention

Technical task

It is therefore the object of the present invention to provide a bottle cap and a bottle which make a rotating screw head in the filling system unnecessary and at the same time ensure that a user of the bottle has the feeling of a screw cap when opening and closing the bottle.

Solution of the task

This object is achieved with a bottle cap with the features of claim 1 and with a bottle with the features of claim 2. Further refinements of the present invention result from the subclaims.

According to the invention, a bottle stopper is proposed for axially plugging onto a mouth area of a bottle with a mouth opening in a plug-on direction. The bottle stopper has an at least partially cylindrical or slightly conical side area to enclose the mouth area and a closing area to close the mouth opening of the bottle. The side region of the bottle stopper has an inner wall with catching means which are designed to catch counter-catching means at the mouth region of the bottle. At least the inner wall of the side region can be at least partially elastically expanded in the radial direction of the bottle closure when the bottle stopper is plugged onto the mouth region by means of the counter-catcher or by means of the catcher. The catching means and the counter-catching means interact according to the invention in such a way that the bottle cap can only be pulled off the mouth region of the bottle against the plug-on direction by means of a limited rotary movement of the bottle cap relative to the mouth region by a predetermined opening angle of rotation.

According to the invention, a bottle with a mouth area for axially attaching a bottle cap is also proposed. The mouth region has a mouth opening, the bottle closure having an at least partially cylindrical or slightly conical side region for encompassing the mouth region and a closing region for closing the mouth opening being able to be axially plugged onto the mouth region of the bottle. The mouth region has an outer wall with counter-catching means which are designed for catching catching means on an inner wall of the side region of the bottle stopper. By means of the counter-catching means or by means of the catching means, at least the inner wall of the side area can be at least partially elastically expanded while the bottle cap is being pushed onto the mouth area of the bottle. According to the invention, the counter-catching means and the catching means interact in such a way that the bottle cap can only be pulled off the mouth region against the plug-on direction by means of a limited rotational movement of the bottle cap relative to the mouth region by a predetermined opening angle of rotation.

During the axial plugging of the bottle cap onto the mouth area of the bottle, the catch means on the closure side and the counter catch means on the bottle side can be exactly aligned with one another in the direction of attachment. In this case, the catch means and the counter catch means catch one another without the bottle closure rotating relative to the mouth region of the bottle. However, a relative position between the catching means and the counter-catching means that is exactly aligned in the plug-on direction should only rarely occur, since when the bottle stopper is axially attached to the mouth area of the bottle in the filling system, it does not The relative rotational position between the bottle stopper and the mouth area should be observed.

In most cases, there will be such a relative rotational position between the bottle stopper and the mouth area of the bottle in the filling system, in which the catching means are not exactly aligned with the counter-catching means in the plug-on direction. In this case, the catching means and the counter-catching means interact according to the invention in such a way that they only engage in one another by a certain closing angle of rotation after a limited rotational movement of the bottle closure relative to the mouth region. The catching means and the counter-catching means act together in the sense of a positive guidance, so that the limited rotational movement when the bottle cap is placed on the mouth area is forcibly generated by the closing angle of rotation. This limited rotational movement is tolerable within the filling system, in which, when the bottle is first closed, a closure head attaches the bottle closure in the plug-on direction to the mouth area of the bottle. For this purpose, the closure head only has to be mounted in such a way that it can passively rotate with it within the scope of the limited rotary movement. The positively guided, limited rotational movement of the bottle stopper is then brought about by its axial movement in the push-on direction.

According to the invention, at least that portion of the inner wall of the side area of the bottle stopper can be elastically expanded in which the catch means are arranged. However, it is also conceivable that the wall forming the side area of the bottle stopper is designed to be elastically expandable overall, so that the elastic expansion of the side area that occurs temporarily when the bottle stopper is attached to the mouth area is visible or ascertainable in a side view of the bottle stopper. This is not the case if an elastic material is selected only for the inner wall of the side area.

The present invention advantageously enables that no actively rotating screw head has to be provided in the filling system. At the same time, when opening and closing the bottle, the user will always find that opening and closing almost always requires a limited rotational movement of the bottle closure relative to the mouth region.

The opening angle by which the bottle cap has to be turned when opening the bottle is always the same and depends on the geometric design of the catching means and the counter-catching means. The angle of rotation by which the bottle stopper is rotated when the bottle is closed is not always the same and depends not only on the geometry of the catch means and the counter catch means, but also on the relative rotational position of the bottle stopper with its catch means on the mouth area with its counter catch means is stuck. Ultimately, the closing angle of rotation is always smaller than the opening angle of rotation, since the catch means usually do not hit the counter catch means in such a relative rotational position when the bottle cap is placed on the mouth region that they cause the rotational movement limited according to the invention to the extent of the constant opening angle. If the safety gear is exactly aligned with the counter safety gear in the direction of attachment, there is no closing rotation at all and the closing rotation angle is accordingly 0 °.

As a result, the present invention has the effect that the expenditure of a rotary screw head in the bottling plant is avoided, the user of the bottle is always required to rotate the bottle stopper by a constant opening angle when the bottle stopper is opened, and the user of the bottle is required to perform a rotary movement when the bottle stopper is closed of the bottle stopper is required to the extent of a closing angle of rotation that is smaller than the opening angle of rotation.

The catching means and the counter-catching means preferably correspond geometrically to one another in the sense of a shape and counter-shape. The catching or counter-catching means designed as a protrusion then essentially completely fills out when it engages in the counter-catching or catching means designed as a recess. However, it is also conceivable that the catching means and the counter-catching means do not correspond geometrically to one another, but only catch one another in the sense of the present invention and can slide relative to one another during the rotational movement between the bottle stopper and the mouth area. A geometrical corresponding of the shapes of the catching means and the counter-catching means is not necessary for this.

The catch means on the closure side can be designed as catch recesses which are introduced into the inner wall of the side region. In this case, the counter catch means on the bottle side are designed as catch projections which protrude from an outer wall of the mouth region of the bottle. In this embodiment, the catch projections in the radial direction have summit points which protrude furthest from the mouth region and which lie on a summit circle with a predetermined outer diameter. The inner wall of the side area has a predetermined inner diameter. The outside diameter of the The summit circle is larger than the inside diameter of the side area. In this way, it is achieved that the bottle-side summit points elastically press on or expand the inner wall of the side region before they are caught or engage in the catch-side catch recesses due to the elastic restoring force.

Alternatively, it is conceivable to design the catch means on the closure side as catch projections which protrude from the inner wall of the side region. The counter catch means on the bottle side are then formed as catch recesses which are introduced into an outer wall of the mouth region of the bottle. In this case, the catch projections have summit points which protrude furthest from the inner wall in the radial direction and lie on a summit circle with an inner diameter. This inner diameter is smaller than the outer diameter of the outer wall of the mouth region in which the catch recesses are formed. In this way, the catch projections on the closure side are supported when the bottle cap is attached to the mouth area on the outer wall and thereby widen or press open the inner wall of the side area before the catch projections are caught by or engage in the catch recesses.

Regardless of whether the catch projections are arranged on the bottle side on the mouth area or on the closure side on the side area, they can protrude to different extents from the outer wall of the mouth area or to different extents from the inner wall of the side area. This creates summit circles with different diameters.

In the case of catch projections on the bottle side, for the above-mentioned geometry, that the outer diameter of the summit circle is larger than the inner diameter of the side area, the diameter of that summit circle is used as the outer diameter, which runs through the summit point or those summit points which are furthest from the outer wall the mouth area protrudes.

In the case of catch projections on the lock side, for the aforementioned geometry definition that the inner diameter of the summit circle is smaller than the outer diameter of the outer wall of the mouth area, the diameter of that summit circle is used as the inner diameter that runs through the summit point or those summit points which are the most distant the inner wall of the side area protrudes.

Less protruding protrusions in certain circumferential sections of the outer wall of the mouth area or in certain circumferential sections of the side area can be advantageous in particular in the manufacture of the bottle or the bottle stopper using casting molds for manufacturing reasons. With protrusions protruding to different degrees and thus engaging in different depths in the catch recesses, the size of the initial opening force which a user of the bottle must initially exert in order to unscrew the bottle closure from the mouth area can also be influenced.

The limited rotary movement preferably extends over an opening angle of rotation in the size of 5 ° to 30 °, more preferably over an opening angle of rotation in the size of 10 ° to 20 °.

In an advantageous manner, the catch means are arranged and objected within a closure-side circumferential band of the inner wall in such a way that each imaginary cylinder-generating straight line that runs on the inner wall in the plug-on direction passes through or crosses at least one of the catch means. In this way it can be ensured that the catching means and the counter-catching means can engage at least partially with one another in any rotational position of the bottle closure relative to the mouth region. When the bottle stopper is plugged onto the mouth area, no anti-catch agents can pass through the catch means without coming into contact with the latter.

The circumferential band with the catch means arranged in it preferably runs in a half of the side region facing away from the closing region of the bottle stopper. It is advantageous if the circumferential band has a width that is 30% or less of the height of the side area of the bottle stopper. The width of the circumferential band corresponds to the extent of the catching means in the direction of attachment.

The catch means, which are preferably formed by a multiplicity of catch elements, are arranged uniformly spaced from one another within the closure-side circumferential band. Accordingly, the individual catch elements are equidistant from one another in the circumferential direction. The counter-catching means within a bottle-side peripheral band of the outer wall of the mouth area can be arranged and spaced such that one or more sections of the peripheral band remain free of counter-catching means. In this way, it can be determined how many fishing gear and counter-fishing gear interlock. This in turn affects the Size of the initial opening force that a user of the bottle initially has to exert in order to unscrew the bottle cap from the mouth area.

The catching means and / or the counter-catching means can have an elongated geometry. It is preferably a non-curved, elongated geometry with a straight longitudinal axis. The straight longitudinal axis advantageously forms an angle of 30 ° to 60 °, in particular an angle of 40 ° to 50 °, with the direction of attachment. The angle can be of the same size for all existing catching devices and / or counter-catching devices. However, it is also conceivable to arrange catch means and / or counter catch means at different degrees of inclination with respect to the push-on direction and in this way influence the initial opening force which a user of the bottle must initially exert in order to unscrew the bottle closure from the mouth area.

In the event that elongated catch recesses are provided in the inner wall of the side region of the bottle stopper, the catch recesses can each have a first end facing the closing region and a second end facing away from the closing region. At least the second end is designed to be closed in such a way that the catch recesses and the catch projections engage in one another in a form-fitting manner. This keeps the bottle stopper at the mouth of the bottle.

In the event that elongated catch recesses are arranged in the outer wall of the mouth region of the bottle, the catch recesses can each have a first end facing the mouth opening and a second end facing away from the mouth opening. At least the first end is designed to be closed in such a way that the catch recesses and the catch projections engage in one another in a form-fitting manner. This will keep the bottle cap on the mouth area.

Depending on whether the catch recesses are arranged on the closure side or on the bottle side, they can each have in the region of their second end or in the region of their first end a recess end side wall which, at least in sections, has an inclination that is constant or changes relative to the inner wall or to the outer wall runs that it can slide along a geometrically corresponding projection end side wall of the catch projections. The associated wedge action between the recess end side wall and the projection end side wall facilitates a temporary, at least partial widening of the inner wall or the side region in the radial direction to the outside when the bottle stopper is released from the mouth region.

In the event that elongated catch recesses are provided in the bottle stopper, the catch recesses can each have a first end facing the closing area and a second end facing away from the closing area, at least the second end being open. This second end lies in a plane that is spanned by an edge of the side area facing away from the closing area, on which a tear-off ring can be located when the bottle stopper is first plugged onto the mouth area in the filling system. This has the effect that the catch projections cannot hold the bottle closure in a form-fitting manner at the mouth area in the position engaging in the catch recesses. For this purpose, separate latching means are therefore provided on the bottle stopper for positively locking the bottle stopper at the mouth area. The catch recesses and catch projections acting together in the sense of the present invention bring about in this variant only the radial widening of the inner wall or the side area and the limited rotational movement of the bottle closure during its opening process by the opening angle of rotation.

In the event that elongated catch recesses are provided in the mouth region of the bottle, for example along an annular bead formed on it, the catch recesses can have a first end facing the mouth opening and a second end facing away from the mouth opening, at least the first end being open . As a result, the catch projections on the closure side cannot hold the bottle closure in a form-fitting manner at the mouth region when it engages in the catch recesses. For this purpose, separate counter-locking means for positive locking of the bottle stopper on the mouth area are therefore present at the mouth area of the bottle. The catch recesses and catch projections which act together in the sense of the present invention also bring about only the radial widening of the inner wall or the side region and the limited rotational movement of the bottle stopper during its opening process by the opening angle of rotation in this variant.

In the event that any catch recesses of any shape are provided in the bottle closure and thus any catch projections of any shape are provided on the mouth region of the bottle, the side region of the bottle closure can have a tear-off ring with protruding locking elements at its end facing away from the closure region have to fix the tear-off ring at the mouth area. These locking elements are designed such that they are caught in the spaces between the catch projections on the bottle side when the bottle cap is first plugged on and cause the bottle cap to rotate relative to the mouth area in such a way that the catch side catch recesses exactly match the bottle side in the plug-on direction Catches are aligned before the catch wells and catches engage. When the bottle stopper is first plugged onto the mouth area, which takes place in the bottling plant, the tear-off ring with its protruding locking elements thus causes the bottle stopper to rotate, which precedes the latching of the catch recesses and catch projections that are aligned with one another after completion of the aforementioned rotational movement.

The locking elements protruding radially inwards on the tear-off ring consequently have a double function. The first function consists in causing the bottle stopper to rotate relative to the mouth area in such a way that the catch recesses are exactly aligned with the catch projections. The second function is to lock the bottle closure in a form-fitting manner at the mouth area of the bottle and thereby hold it.

According to the invention, not only a bottle cap for itself and a bottle with a mouth area according to the invention are claimed for itself, but also a combination comprising a bottle according to the invention in connection with a bottle cap according to the invention.

Embodiments

• 1: eine Seitenansicht auf ein erstes Ausführungsbeispiel eines erfindungsgemäßen Flaschenverschlusses;
• 2: eine perspektivische Ansicht auf bzw. in den Flaschenverschluss gemäß 1 von schräg unten;
• 3: eine Schnittansicht gemäß Schnitt B-B in 1;
• 4: das in 3 gekennzeichnete Detail A in vergrößerter Darstellung;
• 5: eine Schnittansicht gemäß Schnitt C-C in 4, wobei der gekrümmte Verlauf des Seitenbereichs des Flaschenverschlusses gedanklich in eine Ebene abgewickelt wurde;
• 6: eine perspektivische Ansicht des oberen Teils eines Ausführungsbeispiels einer erfindungsgemäßen Flasche;
• 7: das in 6 gekennzeichnete Detail B in vergrößerter Darstellung;
• 8: das in 6 gekennzeichnete Detail C in vergrößerter Darstellung;
• 9: eine Seitenansicht des in 6 gezeigten Ausführungsbeispiels von links vorne;
• 10: eine Seitenansicht des in 9 gezeigten Teils der Flasche von rechts;
• 11a-11e: verschiedene Axialstellungen des ersten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Schnittdarstellung;
• 12a1 und 12a2 - 12e: verschiedene Axial- und Drehstellungen des ersten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Seitenansicht, wobei die Buchstaben a-e Zeichnungen von Stellungen des Flaschenverschlusses kennzeichnen, die den Stellungen gemäß der 11a-11e mit jeweils korrespondierender Buchstabenkennzeichnung entsprechen;
• 13a-13c: verschiedene Axialstellungen eines zweiten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Schnittdarstellung;
• 14a-14c: verschiedene Axialstellungen des zweiten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Seitenansicht, wobei die verschlussseitigen Fangvertiefungen und die flaschenseitigen Fangvorsprünge gezeigt sind und bereits beim anfänglichen Aufsetzen des Flaschenverschlusses auf den Mündungsbereich in Aufsteckrichtung zueinander fluchten, und wobei die Buchstaben a-c Zeichnungen von Stellungen des Flaschenverschlusses kennzeichnen, die den Stellungen gemäß der 13a-13c mit jeweils korrespondierender Buchstabenkennzeichnung entsprechen;
• 15a-15e: verschiedene Axialstellungen des zweiten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Schnittdarstellung; und
• 16a-16e: verschiedene Axial- und Drehstellungen des zweiten Ausführungsbeispiels des Flaschenverschlusses relativ zu dem Mündungsbereich der Flasche beim Aufstecken des Flaschenverschlusses auf den Mündungsbereich in der Art einer Seitenansicht, wobei die verschlussseitigen Fangvertiefungen und die flaschenseitigen Fangvorsprünge beim anfänglichen Aufsetzen des Flaschenverschlusses auf den Mündungsbereich nicht in Aufsteckrichtung zueinander fluchten, und wobei die Buchstaben a-e Zeichnungen von Stellungen des Flaschenverschlusses kennzeichnen, die den Stellungen gemäß der 15a-15e mit jeweils korrespondierender Buchstabenkennzeichnung entsprechen.

Exemplary embodiments of the present invention are described below by way of example with reference to the accompanying drawings. Show it:

• 1 : a side view of a first embodiment of a bottle stopper according to the invention;
• 2nd : a perspective view of the bottle cap according to 1 from diagonally below;
• 3rd : a sectional view according to section BB in 1 ;
• 4th : this in 3rd marked detail A in an enlarged view;
• 5 : a sectional view according to section CC in 4th , wherein the curved course of the side region of the bottle stopper has been developed in one plane;
• 6 : a perspective view of the upper part of an embodiment of a bottle according to the invention;
• 7 : this in 6 marked detail B in an enlarged view;
• 8th : this in 6 marked detail C. in an enlarged view;
• 9 : a side view of the in 6 embodiment shown from the left front;
• 10th : a side view of the in 9 shown part of the bottle from the right;
• 11a-11e : Different axial positions of the first embodiment of the bottle closure relative to the mouth region of the bottle when the bottle closure is attached to the mouth region in the manner of a sectional view;
• 12a1 and 12a2 - 12e : Different axial and rotational positions of the first embodiment of the bottle stopper relative to the mouth region of the bottle when the bottle stopper is attached to the mouth region in the manner of a side view, the letters ae identifying drawings of positions of the bottle stopper which correspond to the positions according to FIG 11a-11e correspond with the corresponding letter identification;
• 13a-13c : Different axial positions of a second embodiment of the bottle closure relative to the mouth region of the bottle when the bottle closure is plugged onto the mouth region in the manner of a sectional view;
• 14a-14c : Different axial positions of the second embodiment of the bottle stopper relative to the mouth area of the bottle when the bottle stopper is attached to the mouth area in the manner of a side view, the catch-side catch recesses and the bottle-side catch projections being shown and already when the bottle stopper is initially put on the mouth area in the direction of attachment in alignment, and the letters ac denote drawings of positions of the bottle stopper which correspond to the positions according to the 13a-13c correspond with the corresponding letter identification;
• 15a-15e : Different axial positions of the second embodiment of the bottle closure relative to the mouth region of the bottle when the bottle closure is attached to the mouth region in the manner of a sectional view; and
• 16a-16e : Different axial and rotational positions of the second embodiment of the bottle stopper relative to the mouth area of the bottle when the bottle stopper is attached to the mouth area in the manner of a side view, the catch-side catch recesses and the bottle-side catch projections when the bottle stopper is initially placed on the mouth area not in the direction of attachment aligned, and the letters ae designations of positions of the bottle cap, which correspond to the positions according to the 15a-15e with the corresponding letter identification.

1 shows a side view of a first embodiment of a bottle stopper according to the invention 1 . It has an essentially cylindrical side area 4th and an essentially flat closing area 5 to close a mouth opening of a bottle. At his in 1 The bottle cap has the lower end 1 a so-called tear-off ring 13 on when opening the bottle cap for the first time 1 in a predetermined breaking level 19th from the side area 4th loosens and sticks to the mouth of the bottle. The tear-off ring 13 and the predetermined breaking level 19th thus form known originality features of the bottle stopper 1 , with the help of which it can be seen whether the bottle cap 1 has already been opened for the first time. The second and every further opening of the bottle cap 1 only the side area 4th and the closing area 5 , which in the embodiment shown form a one-piece unit made of plastic, removed from the mouth region of the bottle.

In 2nd is a perspective view of the in 1 bottle cap shown 1 shown diagonally from below. In an inner wall 7 of the side area 4th is a multitude - in the exemplary embodiment shown a total of 24 pieces - of elongated, rectilinearly extending catch recesses 8th molded in that act as fishing gear. Depending on your needs, more or less than 24 catch wells 8th be provided. The tear-off ring 13 has locking elements protruding radially inwards on its inner circumference 14 on.

3rd shows the sectional view according to section BB in 1 and 4th shows that in 3rd marked detail A in an enlarged view. In the exemplary embodiment shown, the side region 4th one in 3rd upper, slightly frustoconical section and an in 3rd lower, cylindrical section. The relevant interior wall in the present case 7 of the side area 4th is the inner wall 7 of its lower cylindrical section.

It can be seen that the catch wells 8th in an imaginary, circumferential band on the lock side VUB are arranged on the inner wall 7 of the side area 4th closed, ie over an angular extent of 360 °. The catch wells 8th are in this range VUB evenly spaced. Even the locking elements 14 the tear-off ring 13 are evenly spaced around its inner circumference by 360 °.

The inner wall 7 the lower, cylindrical section of the side area 4th has an inner diameter D _i on. The low points of two diametrically opposed catch wells 8th accordingly have a distance from one another which is greater than this inner diameter D _i . As in 3rd the circumferential band is visible VUB with the catch wells 8th in the lower half of the page area 4th that the closing area 5 is turned away. The width B the circumferential band VUB indicates the extent to which the catch wells are 8th in the in 3rd drawn plug-in direction AR extend into which the bottle cap 1 is placed on the mouth of a bottle. In the embodiment shown, the width is B about 22% of the total amount H of the side area 4th the bottle stopper 1 . The width should preferably be B the circumferential band VUB equal to or less than 30% of the total amount H of the side area 4th be.

As in 4th can be seen, each of the catch wells 8th a longitudinal axis 10th on. In the embodiment shown, the angle is α between the longitudinal axis 10th every catch well 8th and the direction of attachment AR 45 °. The angle is preferably α in the range from 30 ° to 60 °, more preferably in the range from 40 ° to 50 °.

5 shows the in 4th marked cut CC along the longitudinal axis 10th a catch well 8th . The in 4th Part of the circumferential band shown enlarged VUB mentally developed in one plane, so that in itself in the direction of the longitudinal axis 10th slightly curved course of the catch recess 8th in 5 was neglected. It is the elongated geometry of the inside wall 7 molded catch recess 8th recognizable. It has a first end 11 on that in the 3rd to 5 the top of the catch well 8th forms and the closing area 5 is facing. The catch well 8th also has a second end 12th on that in the 3rd to 5 the lower end of the catch well 8th forms and from the closing area 5 turned away, ie at the same time the lower edge 16 of the side area 4th is facing. In particular in the area of their second end 12th indicates the catch well 8th one in 5 marked recess end side wall 18th on the inclination suitably chosen within the scope of the present invention β to the plane of the inside wall that is intended to be developed 7 having. The greater the angle of inclination β is selected, the larger the ones for releasing the bottle cap 1 forces required by the mouth area.

6 shows the upper part of an embodiment of a bottle according to the invention 3rd . It has a bottle neck 20th , a mouth area located at its upper end 2nd as well as a mouth opening 6 on. To close the mouth opening 6 becomes the bottle cap 1 in the direction of attachment AR to the mouth area 2nd attached. When the bottle cap is fully attached, its closing area closes 5 the mouth opening 6 and its side area 4th encompasses the mouth area 2nd the bottle 3rd .

In the 7 and 8th are the details B and C. out 6 shown enlarged. It can be seen that the mouth area 2nd an upper, the mouth opening 6 facing, slightly frustoconical section, a lower, the mouth opening 6 facing away, cylindrical section and a closed circumferential tear-off ring retaining bead 21 includes. The cylindrical, lower section of the mouth area 2nd forms a relevant outer wall here 17th of the mouth area 2nd .

As can be seen, the cylindrical outer wall 17th almost entirely from an imaginary, bottle-side circumferential band FUB formed in which a plurality - in the embodiment shown a total of 18 pieces - of catch projections 9 raised from the outer wall 17th protrudes, which act as a counter-catch. Depending on your needs, you can have more or less than 18 catch tabs 9 In the exemplary embodiment shown, the geometry of the catch projections is 9 corresponding to the geometry of the catch recesses 8th in the inner wall 7 the bottle stopper 1 chosen. Each of the elongated, linearly extending catch tabs 9 can each have an associated catch well 8th essentially fill in completely. This geometric correspondence of the geometries of the tabs 9 and the catch wells 8th in the embodiment shown is not mandatory. Within the scope of the present invention, there are also different geometries for the catch projections 9 and the catch wells 8th on the other hand conceivable, for example an elongated catch recess as shown in combination with a catch projection which consists of two or more point or pin-like elevations which are arranged in a straight line in a row.

In 7 it can also be seen that the peripheral band on the bottle side FUB not completely circumferential with elongated catch projections 9 is busy. The perimeter band FUB or in the direction of attachment AR slightly wider outer wall 17th has two diametrically opposite circumferential sections in the exemplary embodiment shown (only one in 7 visible) in which no catch projections 9 available. In this way, the number of engaging pairs of catch projections 9 and catch wells 8th and thus the one for removing the bottle cap 1 from the mouth area 2nd required opening force can be influenced. In principle, however, it is also conceivable for the bottle side to have the same number of equally spaced catch projections 9 are present like catch wells 8th in the inner wall 7 the bottle stopper 1 .

As best in 8th can be seen, each catch ledge 9 one from several summit points 22 existing summit line, which is characterized by being from summit points 22 is formed, the farthest in the radial direction from the outer wall 17th protrude.

The 9 and 10th show different side views of the in 6 shown, upper part of the bottle 3rd . The viewing direction of the 9 is right on the of tabs 9 free and in 6 visible peripheral portion of the bottle-side peripheral band FUB directed. The viewing direction of the 10th is rotated by 90 °, ie it looks from the right onto the in 9 shown bottle 3rd . The peaks 22 of all catch tabs 9 lie on an outer diameter in the embodiment shown D _a who in 9 is marked. This outside diameter D _a the summit points 22 the catch tabs 9 is larger than the inside diameter D _i the inner wall 7 of the side area 4th the bottle stopper 1 . Due to this diameter ratio D _a / D _j > 1, the bottle-side catch projections 9 the inner wall 7 or the side area 4th the bottle stopper 1 when plugging it onto the mouth area 2nd expand elastically. Only when the catch tabs 9 completely in the catch wells 8th intervene, the elastic expansion of the inner wall 7 or the side area 4th back again. It is advantageous if the elastic expansion does not decrease completely, but rather the catch recesses 8th still with a certain restoring force radially inwards against the catch projections 9 be pressed. This creates a loose, playful fit of the bottle cap 1 on the estuary 2nd leaning forward.

As in 8th can be seen, show the catch projections 9 at its lower, the mouth opening 6 opposite end one Projection end sidewall 23 on, their inclination to the unintended outer wall 17th is the same size as the one in 5 marked inclination angle β the recess end side wall 18th relative to the developed inner wall 7 . When loosening the bottle cap 1 from the mouth area 2nd can the respective recess end side wall 18th on the respective projection end side wall 23 slide off so that the inner wall 7 or the side area 4th be elastically expanded again. The one between the deep end wall 18th and the projection end sidewall 23 The resulting wedge effect supports the user of the bottle 3rd when opening the bottle cap 1 .

Alternatively, the catch wells are conceivable 8th at their respective second ends 12th to be open. This means that in 5 the recess end side wall 18th does not exist at all and the wedge effect explained above does not occur. The respective catch advantage 9 can then from the second end 12th not positive in the catch recess 8th being held. Instead, act between the elongated, abutting flanks of the muzzle 9 and the catch well 8th only stiction forces that catch the catch 9 frictionally in the catch recess 8th hold. These static friction forces can be used to hold the catch tab securely 9 in the catch well 8th be enough. However, if they are overcome, the catch advantage can 9 in 5 to the bottom right of the catch recess 8th slide out. For this reason, in this variant, the side area 4th if necessary, additional locking means for positive locking of the bottle stopper 1 at the mouth area 2nd be provided.

In 10th is the longitudinal axis 10th a catch ledge 9 featured. The angle α between the direction of attachment AR and the longitudinal axis 10th in the exemplary embodiment shown, as in the catch recesses on the lock side 8th 45 °. The bottle-side angle α becomes identical to the angle on the lock side α according to 4th selected and is preferably 30 ° to 60 °, particularly preferably 40 ° to 50 °.

In 8th are between the tabs 9 lying gaps 15 featured. The on the tear-off ring 13 the bottle stopper 1 existing locking elements 14 are dimensioned so that they are in the spaces 15 can slide along this. This causes the locking elements 14 can perform a dual function. First, they hold the tear-off ring 13 in a manner known per se on the bottle-side tear-off ring retaining bead 21 and on the other hand, they practice before the catches finally engage 9 in the catch wells 8th according to the invention a management function, in the context of which the bottle cap 1 turned and the catch wells 8th and the tabs 9 in the direction of attachment AR aligned with each other.

The following is based on the 11a to 11e as well as the 12a1 , 12a2 to 12e described how the bottle cap 1 according to the first embodiment in the push-on direction AR to the mouth area 2nd is plugged in and what relative movements between the bottle cap 1 and the mouth area 2nd the bottle 3rd occur. For the sake of clarity, reference symbols have essentially only been used in the 11a and 12a2 intended. The remaining figures always show the same bottle cap 1 and the same mouth area 2nd as the 11a and 12a2 in other relative positions to each other, so that the individual elements of the bottle stopper 1 and the mouth area 2nd in the other figures are the same as in the 11a and 12a2 .

When you close the bottle for the first time 3rd after filling them in the bottling plant, the bottle cap is opened 1 corresponding 11a automated by a suitable handling unit in the filling system in the push-on direction AR to the mouth area 2nd stuck. In the 12a1 and 12a2 are examples of two different relative rotational positions of the bottle stopper 1 relative to the mouth area 2nd shown the the bottle cap 1 can take at random at this time. In 12a1 the locking elements run 14 more or less exactly directly in the gaps 15 between the bottle-side catch projections 9 a. In 12a2 meet the locking elements 14 the tear-off ring 13 when moving in the direction of attachment AR more or less directly on the upper ends of the bottle-side catch projections 9 . One for illustrative purposes only in the 12a1 , 12a2 and 12b to 12d drawn rotation indicator DI in the form of a vertical, dashed line gives the relative relative rotational position of the bottle stopper 1 relative to the mouth area 2nd at. In addition to the two in the 12a1 and 12a2 Relative rotational positions shown can naturally also occur in the bottling plant any other relative rotational positions.

In the 11b and 12b has the bottle cap 1 already a little further down in the plug-on direction AR emotional. Starting from the relative rotational position according to 12a1 he has according to the rotation indicator DI also twisted a bit (in supervision of the 12b clockwise from above). This rotation is caused by the locking elements 14 causes that along the upper flanks of the sloping catch projections 9 slide. The locking elements 14 accordingly act like Guide tabs by the tabs 9 in the gaps 15 be performed. This is the demolition ring 13 and subsequently the entire bottle cap 1 forced clockwise rotation.

Starting from the relative rotational position according to 12a2 has the bottle cap 1 on his way to the in 12b shown position only a linear axial movement in the direction of attachment AR carried out as on the rotation indicator DI can be seen. The locking elements 14 have over the tapered top ends of the tabs 9 moved away and so the in 12b shown position reached.

In the 11c and 12c has the bottle cap 1 again a little further in the direction of attachment AR emotional. The locking elements 14 now have the gaps 15 between the tabs 9 go through completely and there is a bottle cap 1 rotated further clockwise, like the rotation indicator DI can be seen. It can be seen that now the catch-side catch wells 8th and the bottle-side catch projections 9 in the direction of attachment AR exactly aligned. In 11c you can see how the tabs 9 in the embodiment shown, start the side area 4th the bottle stopper 1 in the radial direction RR expand elastically outwards.

In the 11d and 12d has the bottle cap 1 down a little further in the direction of attachment AR emotional. The rotation indicator DI it can be seen that he is compared to his in 12c has not twisted the position shown. There was a pure axial movement in the direction of attachment AR instead of.

After a further, pure axial movement in the direction of attachment AR reaches the bottle cap 1 finally those in the 11e and 12e shown final closed position, in which he the mouth opening 6 the bottle 3rd closes. The bottle-side catch projections 9 have the catch-side catch recesses 8th caught and are completely in the catch wells 8th snapped or snapped in as in 11 e can be seen. The elastic restoring force, which counteracts the in 11c drawn radial direction RR seek the side area 4th the bottle stopper 1 against the mouth area 2nd to squeeze the bottle. This elastic restoring force results from the inherent elasticity of the material from which the bottle cap is made 1 is made. In this context, for example, plastics or metals, such as aluminum, are suitable. In 12e are the catch wells 8th and the tabs 9 thus congruent one above the other and can no longer be differentiated from one another in the drawing.

In the final closed position of the bottle stopper 1 according to the 11e and 12e reach behind the locking elements 14 the tear-off ring 13 the ring-shaped at the mouth area 2nd all-round tear-off ring retaining bead 21 , as in 11e is shown. In addition, the catch projections sit 9 firmly in the catch wells 8th .

A user wants the bottle 3rd opening for the first time, he cannot do this with a pure axial movement of the bottle stopper 1 against the direction of attachment AR accomplish upwards. The interlocking catch wells 8th and catch tabs 9 that in the 3rd and 9 shown diameter D _i and D _a who in the 4th and 10th drawn angles α as well as the in 5 drawn angle of inclination β are designed so that normal forces of a human user of the bottle 3rd not enough to close the bottle 1 in 12e to be withdrawn in such a way in a pure, linear axial movement that the in 12d shown position of the bottle stopper 1 would be achieved.

Rather, the user needs the bottle cap 1 in supervision of the 12e Viewed from above in a counterclockwise direction with a slight rotary movement relative to the mouth area 2nd act upon. This slides the in 5 shown recess end side wall 18th a catch well 8th along the in 8th indicated projection end side wall 23 of the associated catch projection 9 . The wedge effect that occurs when these walls slide off supports the user of the bottle, the catch recess 8th in the area of their in 5 shown second end 12th in the radial direction from the catch projection 9 to take off.

With continued rotation this slides in 5 shown second end 12th the respective catch well 8th along the in 8th marked summit points 22 of the respective catch lead 9 up. During this sliding movement, an increasingly smaller, engages 8th upper area of the respective catch ledge 9 still in the respective catch well 8th one because the elastic restoring force covers the side area 4th radially inwards onto the mouth area 2nd presses. Ultimately, that achieved in 5 shown, second end 12th the catch well 8th this in 8th upper end of the respective catch projection 9 so that the catch ledge 9 completely from the catch well 8th has moved out and accordingly no forced rotation of the bottle cap 1 to the Mouth area 2nd more takes place. The bottle stopper 1 can then continue in a purely axial movement against the plugging direction AR be subtracted upwards.

During the rotation of the bottle stopper 1 when opening the same is the tear-off ring 13 pulled up. Since it is from the locking elements 14 against the direction of attachment AR form-fitting on the tear-off ring retaining bead 21 held, it loosens when the bottle cap is opened for the first time 1 due to the axial forces pulling against the plug-on direction in the predetermined breaking plane 19th from the bottom 16 of the side area 4th .

When closing the bottle stopper 1 and the tear-off ring remains with every further opening 13 at the mouth area 2nd the bottle 3rd . The bottle stopper 1 is then only from its closing area and its side area 4th educated. He has the tear-off ring 13 lost so to speak.

As described above, the bottle cap is opened 1 only in connection with a limited rotation of the bottle cap 1 possible by a predetermined, constant opening angle. The size of the opening angle of rotation is determined by the circumferential direction of the circumferential band on the bottle side FUB measured distance of the in 8th lower end of a muzzle 9 from that in 8th upper end of the same catch projection 9 fixed. In the embodiment shown, the opening angle of rotation is approximately 15 °. The opening angle of rotation is preferably selected in the range from 5 ° to 30 °, more preferably in the range from 10 ° to 20 °.

Below is the first fitting of a second embodiment of a bottle stopper 1 to the mouth area 2nd the bottle 3rd in connection with the 13a to 13c , 14a to 14c , 15a to 15e and 16a to 16e described.

The second embodiment of the bottle stopper 1 differs from the first embodiment in that its tear-off ring 13 no such locking elements 14 having in the spaces 15 between the bottle-side catch projections 9 can break in. In the 13a to 13c and 15a to 15e to be seen locking elements of the second embodiment of the bottle closure 1 can be designed so wide, for example, that they catch the bottle-side catch projections 9 just overflowed. In contrast to the first exemplary embodiment, they therefore do not cause the bottle closure to be rotated compulsorily 1 when the tear-off ring 13 with its locking elements the bottle-side circumferential band FUB with its catch tabs 9 overflows.

The movements described below when the bottle cap is closed for the first time 1 According to the second embodiment, the bottle cap can be closed in the same way 1 according to the first embodiment (cf. 12e , Reclose the bottle cap 1 without tear-off ring 13 ) and when reclosing the bottle cap 1 according to the second embodiment (also without a tear-off ring 13 ) occur.

It was only in the 13a and 14a Reference numerals inserted. The 13b , 13c and 14b , 14c show the same bottle cap 1 as well as the same mouth area 2nd as the 13a and 14a , only in other relative positions to each other. For reasons of clarity, no reference numerals have therefore been used in the 13b , 13c and 14b , 14c inserted.

The 13a and 14a show a relatively rare constellation in which the bottle cap 1 for the first time in the bottling plant or when the bottle is reclosed by a user 3rd to the mouth area 2nd can be plugged on. As in 14a recognizable, this constellation is characterized by the fact that the catch recesses 8th and the tabs 9 as soon as the bottle cap is initially attached 1 to the mouth area 2nd in the direction of attachment AR exactly aligned. In 14a accordingly there are the catch wells 8th exactly above the catch projections 9 .

In the 13b and 14b has the bottle cap 1 already further in the direction of attachment AR moved down. The tear-off ring 13 the bottle-side catch projections 9 overflow in a straight line so that there is no relative rotation between the bottle stopper 1 and mouth opening 2nd , but only a straight axial movement of the bottle stopper 1 took place down. The state of motion according to 14b corresponds to that in connection with 12d described state of motion.

The 13c and 14c show the final closed state of the bottle stopper 1 who the in 12e shown movement state corresponds. He is from the in 14b shown state of motion by a further, pure axial movement in the direction of attachment AR emerged. The catch tabs 9 completely engage in the catch recesses in this state 8th one and therefore can no longer draw from each other can be differentiated. Opening the in 14c bottle cap shown 1 by removing from the mouth area 2nd takes place in the same manner as described above in connection with the first embodiment of the bottle stopper 1 has been described, ie initially by means of a combined axial and rotary movement, the rotary movement taking place by a relatively small opening rotation angle.

The 15a and 16a show a further constellation of an initial relative rotational position between the bottle stopper 1 and mouth area 2nd which, when it is first closed in the bottling plant or when the bottle is reclosed by a user, is likely to be much more common than that in 14a Relative rotational position shown with exactly aligned catch recesses 8th and catch tabs 9 . Since the 15b to 15e and 16b to 16e the same bottle stopper 1 and the same mouth area 2nd as the 15a and 16a Show only in other relative positions, for reasons of clarity, only in the 15a and 16a Reference numerals used.

In the 15a and 16a is the bottle cap 1 with an initial rotation angle offset between the closure-side circumferential band VUB with the catch wells 8th and the bottle-side circumferential band FUB with the catch tabs 9 to recognize. Based on the 16a to 16d in the form of a dashed line rotation indicator DI it can be seen that the angular offset here is about half the extent of the catch recesses 8th or the catch tabs 9 corresponds in the circumferential direction.

In the 15b and 16b a state of movement is shown in which the bottle cap 1 through a straight, axial movement in the direction of attachment AR has come down, which is based on the rotation indicator DI can be read. The tear-off ring 13 has the bottle-side circumferential band FUB with the catch tabs 9 straight overflow and accordingly no rotation of the bottle cap 1 causes. As in 15b can be seen, the catch projections begin 9 , the side area 4th elastic in the radial direction RR expand.

In the 15c and 16c a state of movement is shown in which the catch recesses 8th and the tabs 9 have moved closer together. The bottle stopper 1 has this state of motion through a further linear axial movement in the plug-on direction AR reached, as on the rotation indicator DI can be seen.

In the 15d and 16d has the bottle cap 1 finally reaches a state of movement in which the catch-side catch recesses 8th and the bottle-side catch projections 9 partially overlap each other. According to the rotation indicator DI this condition was also caused by a straight axial movement in the plug-on direction AR reached. Because of the on the side area 4th the resilient restoring force acting radially inwards snaps or snaps into place 9 in the overlap area with the catch wells 8th in the latter. Accordingly, both in the circumferential direction (regarding the longitudinal extent of the immersion of the catch projections 9 in the catch wells 8th ) as well as in the radial direction (regarding the depth extension of the immersion of the catch projections 9 in the catch wells 8th ) partial intervention of the catch projections 9 in the catch wells 8th instead of.

This partial intervention creates a sliding guide for the bottle stopper 1 at the mouth area 2nd who have the bottle cap 1 with further pushing in the push-on direction AR forcing a rotational movement downwards. In the further course of the movement of the bottle stopper 1 in 16d that slides down in 5 shown second end 12th a respective catch well 8th on the in 8th shown summit points 22 in the lower area of each catch ledge 9 increasingly down. The degree of partial engagement of the catch projections increases 9 in the catch wells 8th more and more. The aforementioned sliding movement continues until the in 5 shown recess end side wall 18th a respective catch well 8th finally at the in 8th indicated projection end side wall 23 of each catch lead 9 is applied and the catch projections 9 completely in the catch wells 8th intervene, with which in the 15e and 16e illustrated, final closed position of the bottle stopper 1 is achieved.

The in the 15e and 16e shown closed position corresponds to the closed positions according to the 11e and 12e as well as 13c and 14c. The catch tabs 9 sit completely and firmly in the catch recesses 8th . A graphic distinction between the catch wells 8th and the tabs 9 is in 16e therefore no longer possible.

Solving the in 16e bottle cap shown 1 from the mouth area 2nd takes place in the same way as already in connection with the first embodiment of the bottle stopper 1 has been described, ie by means of a combined axial and rotary movement and a subsequent pure axial movement against the plugging direction AR . The rotary movement takes place by a relatively small opening angle.

During the opening angle of rotation depending on the geometry of the catch projections 9 (ie depending on the length of its extent in the circumferential direction) is always constant, make the 16a to 16e clearly that the closing angle by which the bottle cap 1 when closing the bottle 3rd must be rotated from the initial rotation angle offset between the catch recesses 8th and the tabs 9 depends (cf. 16a ). The larger the aforementioned rotation angle offset, the larger the closing rotation angle. The closing angle of rotation reaches at most approximately the constant opening angle of rotation, but is usually smaller than the opening angle of rotation due to the low probability that the initial angle of rotation offset just happens to cause the maximum angle of rotation.

Reference list

1

Bottle stopper

2nd

Mouth area

3rd

bottle

4th

Side area of the false lock

5

Closing area of the bottle stopper

6

Mouth opening

7

Inner wall of the side area

8th

Catches of the bottle stopper; Catch wells

9

Antidote to the bottle; Tabs

10th

Longitudinal axis of the fishing gear and / or the counter-fishing gear

11

First end of the deepening catch 8th

12th

Second end of the deepening catch 8th

13

Tear-off ring

14

Locking elements of the tear-off ring 13

15

Gaps between the tabs 9

16

Edge of the page area 4th

17th

Outer wall of the mouth area

18th

Deep end wall

19th

Predetermined breaking level

20th

Bottleneck

21

Tear ring retaining bead

22

Catchpoints peak 9

23

Projection end sidewall

AR

Attachment direction of the bottle stopper 1 to the mouth area 2nd

B

Width of the perimeter band UB

D _i

Inner diameter of the side area 4th

D _a

Outside diameter of the top circle of the catch projections 9

DI

Rotation indicator

FUB

Bottle-side circumferential band on the outer wall 17th

H

Height of the side area 4th

RR

Radial direction

VUB

Closure-side circumferential band on the inner wall 7

α

Angle between the longitudinal axis 10th and direction of attachment AR

β

Inclination angle of the recess end side wall 18th relative to the developed inner wall 7

Claims (22)

Bottle stopper (1) for axial plugging onto a mouth area (2) of a bottle (3) with a mouth opening (6) in a plug-on direction (AR), the bottle stopper (1) having a side area (4) for enclosing the mouth area (2) and has a closing area (5) for closing the mouth opening (6), characterized in that the side area (4) has an inner wall (7) with catching means (8), which for catching counter-catching means (9) at the mouth area (2) of the Bottle (3) are used, at least the inner wall (7) being at least partially elastically expandable in the radial direction when the bottle stopper (1) is pushed onto the mouth region (2) by means of the counter-catching means (9) or the catching means (8), and wherein the Catching means (8) and the counter-catching means (9) work together in such a way that pulling the bottle stopper (1) away from the mouth area (2) against the plugging direction (AR) only by means of a limited rotary movement the bottle stopper (1) can be carried out relative to the mouth region (2) by an opening angle of rotation. Bottle (3) with a mouth area (2) and a mouth opening (6), a bottle stopper (1) with a side area (4) for enclosing the mouth area (2) and a closing area (5) for closing the mouth opening (6) axially can be plugged onto the mouth region (2) in a plug-on direction (AR), thereby characterized in that the mouth region (2) has an outer wall (17) with counter-catching means (9), which serve to catch catching means (8) on an inner wall (7) of the side region (4) of the bottle stopper (1), by means of the counter-catching means (9) or the catching means (8) at least the inner wall (7) can be at least partially elastically expanded while the bottle cap (1) is being pushed onto the mouth region (2), and the counter-catching means (9) and the catching means (8) together in this way have the effect that the bottle stopper (1) can only be pulled off the mouth region (2) in the opposite direction to the push-on direction (AR) by means of a limited rotational movement of the bottle stopper (1) relative to the mouth region (2) by an opening angle of rotation. Bottle stopper or bottle after Claim 1 or 2nd , characterized in that the catch means are catch recesses (8), the counter-catch means are catch projections (9) and the inner wall (7) has an inside diameter (D _i ), the catch projections (9) being the farthest from the mouth region (2) in the radial direction. have protruding summit points (22) which lie on a summit circle with an outer diameter (D _a ) which is larger than the inner diameter (D _i ). Bottle stopper or bottle after Claim 1 or 2nd , characterized in that the catch means are catch projections and the counter catch means are catch recesses which are arranged in an outer wall of the mouth area, the outer wall having an outer diameter, and wherein the catch projections have radially the most distant summit points, on a summit circle with an inner diameter that is smaller than the outer diameter. Bottle stopper or bottle according to one of the preceding claims, characterized in that the opening angle of rotation is in the range from 5 ° to 30 °, in particular in the range from 10 ° to 20 °. Bottle stopper according to one of the Claims 1 or 3rd to 5 , characterized in that the catching means (8) are arranged and spaced within a circumferential band (VUB) of the inner wall (7) such that each imaginary cylinder-generating straight line which runs on the inner wall (7) in the plug-on direction (AR), at least one the catch means (8) passes through, so that the catch means (8) and the counter catch means (9) can at least partially engage with each other in any rotational position of the bottle stopper (1) relative to the mouth region (2). Bottle cap after Claim 6 , characterized in that the circumferential band (VUB) runs in a half of the side region (4) facing away from the closing region (5). Bottle cap after Claim 6 or 7 , characterized in that the circumferential band (VUB) has a width (B) which is 30% or less of a height (H) of the side region (4). Bottle stopper according to one of the Claims 6 to 8th , characterized in that the catching means (8) are arranged within the circumferential band evenly spaced from each other. Bottle after one of the Claims 2 to 5 , characterized in that the counter-catching means (9) are arranged and spaced within a peripheral band of the outer wall (17) such that one or more sections of the peripheral band remain free of counter-catching means (9). Bottle stopper or bottle according to one of the preceding claims, characterized in that the catching means (8) and / or the counter-catching means (9) have an elongated geometry. Bottle stopper or bottle after Claim 11 , characterized in that the elongated geometry has a rectilinear longitudinal axis (10). Bottle stopper or bottle after Claim 12 , characterized in that the longitudinal axis (10) forms an angle (α) of 30 ° to 60 °, in particular 40 ° to 50 °, with the plug-on direction (AR). Bottle stopper according to one of the Claims 11 to 13 combined with Claim 3 characterized in that the catch recesses (8) each have a first end (11) facing the closing area (5) and a second end (12) facing away from the closing area (5), at least the second end (12) being closed , so that the catch recesses (8) and the catch projections (9) engage in one another in a form-fitting manner and thus the Can keep bottle stopper (1) at the mouth area (2). Bottle after one of the Claims 11 to 13 combined with Claim 4 , characterized in that the catch recesses each have a first end facing the mouth opening (6) and a second end facing away from the mouth opening (6), at least the first end being closed, so that the catch recesses and the catch projections engage in a form-locking manner and thus can hold the bottle stopper (1) at the mouth area (2). Bottle stopper or bottle after Claim 14 or 15 , characterized in that the catch recesses (8) each have in the region of their second end (12) or their first end a recess end side wall (18) which, at least in sections, is identical to one relative to the inner wall (7) or the outer wall (17) permanent or changing inclination runs so that it can slide along a geometrically corresponding projection end side wall (23) of the catch projections (9), the associated wedge effect causing the inner wall (7) to expand temporarily, at least partially, in the radial direction when the bottle stopper (1) is released relieved by the mouth area (2). Bottle stopper according to one of the Claims 11 to 13 combined with Claim 3 , characterized in that the catch recesses (8) each have a first end (11) facing the closing area (5) and a second end (12) facing away from the closing area (5), at least the second end (12) being open and lies in a plane that is spanned by an edge (16) of the side region (4) facing away from the closing region (5), so that the catch projections (9) do not positively engage the bottle stopper (1) in the position engaging in the catch recesses (8) the mouth area (2) can hold. Bottle cap after Claim 17 , characterized in that separate locking means are arranged on the bottle stopper (1) for the positive locking of the bottle stopper (1) at the mouth region (2). Bottle after one of the Claims 11 to 13 combined with Claim 4 , characterized in that the catch recesses each have a first end facing the mouth opening (6) and a second end facing away from the mouth opening (6), at least the first end being open so that the catch projections close the bottle stopper (1) in cannot hold the catch recesses of the engaging position in a form-fitting manner at the mouth region (2). Bottle after Claim 19 , characterized in that separate counter-locking means for positively locking the bottle stopper (1) to the mouth region (2) are arranged on the mouth region (2). Bottle cap after Claim 3 or according to one of the Claims 5 to 9 , 11 to 14 , 16 , 17th or 18th combined with Claim 3 , characterized in that the side area (4) has at its end facing away from the closing area (5) a tear-off ring (13) with protruding locking elements (14) for fixing the tear-off ring (13) on the mouth area (2), which is also designed in this way are that they are caught in the spaces (15) between the catch projections (9) when the bottle cap (1) is first plugged onto the mouth area (2) and cause the bottle cap (1) to twist in this way relative to the mouth area (2) that the catch recesses (8) are aligned with the catch projections (9) in the plug-on direction (AR) before the catch recesses (8) and the catch projections (9) come into engagement with one another. Combination of a bottle stopper according to one of the Claims 1 , 3rd to 9 , 11 to 14 , 16 to 18th and 21 and a bottle after one of the Claims 2 to 5 , 10th to 13 , 15 , 16 , 19th and 20th .

Images