WO2005035379A2

WO2005035379A2 - Container closure

Info

Publication number: WO2005035379A2
Application number: PCT/EP2004/009637
Authority: WO
Inventors: Hans Kallinowsky; Reinhard Keuchel
Original assignee: Allit Aktiengesellschaft
Priority date: 2003-09-17
Filing date: 2004-08-30
Publication date: 2005-04-21
Also published as: DE10343762A1; WO2005035379A3; ATE375930T1; EP1663806B1; ES2294528T3; DE10343762B4; DE502004005288D1; EP1663806A2

Abstract

The invention relates to a container closure (1) comprising a cap (2) that can be applied to a container opening, a pouring element (20) arranged on the cap (2), an outlet tube (21), and a closing device that can close the outlet channel (22) of the outlet tube (21). Said closing device comprises a closing element (40) that is positioned on a sealing surface (8) arranged on the inlet (23) of the outlet channel (22) in the closing position, and can be displaced in the axial direction of the outlet tube (21), from a closing position to an opening position and vice versa, by means of an actuating element. The aim of the invention is to ensure a tight closure even when the pressure inside the container is high, and to be able to easily open the container closure. To this end, the actuating element is a pintail (30) that is arranged at a right angle to the longitudinal axis of the outlet tube (21) and is mounted in such a way that it can rotate therein (20).

Description

description

The invention relates to a container closure, in particular a closure for drinking bottles, with a cap that can be attached to a container opening, with a pouring part arranged on the cap with an outlet tube, and with a closure device that can be closed off the outlet channel of the outlet tube and that has a closure element that is in the closed position on a bears on the inlet opening of the outlet pipe arranged sealing surface and is movable in the axial direction of the outlet pipe from a closed to an open position and vice versa.

In the case of container closures, which are generally used for drinking bottles in the sports sector, the closure device can be operated by hand and ensures a liquid-tight closure of the container contents in the closed position.

If necessary, the closure device can be brought into the open position by hand, so that the liquid in the container can be removed without having to remove the container closure.

A widely used container closure has an outlet pipe, at the upper end of which a smaller-diameter disk is arranged, leaving an annular gap free. A closure cap provided with an opening corresponding to the diameter of the disk is arranged above the outlet pipe. This sealing cap can be displaced in the axial direction of the outlet tube, the cap opening the annular gap between the outlet tube and the smaller-diameter disk in the open position and covering this annular gap in the closed position. This practical one-hand condition of the closure has the disadvantage, however, that this Container closures can only be used for drinking bottles that contain non-carbonated beverages. If the internal pressure in the container rises, the closure cap is inevitably pressed into the open position, with the result that the container contents can leak out unintentionally.

From DE 199 38 220 A1 a valve head for placing on beverage bottles is known which has a foldable actuating lever which is supported at one of its two ends in the wall of the valve head and is pivotably mounted there. A rod is attached to the actuating lever with a valve plug, which presses against a valve seat when moving upward. Above the valve seat, an outlet pipe, which extends obliquely downwards, opens into the valve head, from which, however, because of its inclined position, it is not possible to remove liquid, especially when the bottle is upside down. In order to keep the valve plug in the closed position, a pressure-elastic means is provided, which is formed by a set of elongated elements. The arrangement and design of these elastic elements cannot guarantee a constant closing force in the long run, so that leaks occur at this point. The actuating lever can also be inadvertently pressed into the open position if the filled bottle together with other objects, e.g. B. is transported in a sports bag. Another leak can be the sliding guide for the valve stem, especially when a pressurized carbon dioxide liquid shoots up when opening and first hits the sliding guide before it is redirected into the outlet pipe. With the smallest dimensional errors of the individual components or with dimensional changes due to thermal effects, leaks can occur. The known valve head is therefore not suitable for the production of mass products. WO 03/057589 A1 describes a closable dispensing device with a pouring part and a closure device. The pouring part has in the lower region a recess running transversely to the neck of the bottle, into which a rotatable bolt is inserted, which is provided with an actuating lever. The bolt has a through opening which can be brought into the open and closed positions by rotating the bolt.

It is shown to be advantageous if the part of the spout between the closure device and the part of the inside of the bottle, i.e. the lower region of the recess of the spout receiving the closure device, is at least partially elastic and can be pressed elastically against the closure device by an excess pressure in the container ,

It is also pointed out that the closure device can also be turned if there is an overpressure or underpressure in the bottle. The force exerted on the closure device by an overpressure or underpressure in the bottle does not act in the direction in which the closure device has to be moved in order to bring it from the closed position into the open position and vice versa.

A disadvantage of this closure device, however, is that the pivot pin must be fitted exactly and must rest in the pouring part without play in order to prevent liquid under high pressure from escaping. WO 03/057588 A1 describes a dispensing device with a sealing plate, which is arranged in the interior of a screw cap and which, in the closed position, presses against the inlet opening of the outlet channel from below, so that excess pressure in the interior of the container automatically contributes to a tight seal. The sealing plate is actuated by a cap which overlaps the outlet channel and has a cup-shaped connecting part which extends into the outlet channel. The sealing plate is fixed to the bottom of the connection part by means of a pin-like plug. By axially moving the cap, the sealing plate is moved from the open to the closed position and vice versa.

Although a pressure equalization channel is provided, through which the excess pressure can be reduced when opening, large forces are required to open against the excess pressure in the container, which could cause the user to possibly hit the cap, so that the excess pressure can discharge explosively ,

WO 03/057588 A1 describes yet another embodiment which has a screw cap, so that the force can be transmitted continuously to the sealing plate. The sealing plate is attached to the cap by means of a separate pin, which has the disadvantage that the sealing plate must have an opening through which the pin is inserted. This can lead to leaks, especially when operating errors occur. The closure takes getting used to and can be operated incorrectly in that a further unscrewing of the cap contrary to the usual functions of screw caps means "opening" and unscrewing the cap means "closing". An opened lock can be accidentally opened even further by screwing it on. Starting from WO 03/057588, it is therefore the object of the invention to provide a container closure which ensures a tight seal even at high internal pressure in the container and can be opened in a simple manner.

This object is achieved according to a first alternative with a container closure, which is characterized in that the actuating element is a pivot pin which is arranged at a right angle to the longitudinal axis of the outlet pipe and is rotatably mounted in the outlet pipe of the pouring part.

The locking element is connected to this pivot pin by means of suitable connecting elements, so that the rotary movement of the pivot pin can be converted into a lifting movement of the locking element.

It is thus possible in a simple manner and with comparatively little effort to move the closure element inward against the internal pressure by rotating the actuating element. The pivot pin does not have to be fitted exactly because it does not perform a sealing function itself.

The cap and pouring part preferably have a common longitudinal axis, ie the pouring part with the outlet pipe extends vertically upward, so that liquid can be removed from the container in the overhead position of the container when the container closure is screwed on. The pivot pin is located in the outlet channel of the outlet pipe and is flushed around by it when liquid is removed. The pivot pin preferably has, within the outlet pipe, a section which is eccentric to its axis of rotation and to which the closure element is articulated.

For this purpose, the closure element preferably has an annular connecting element which engages around the eccentric section of the pivot pin. An arrangement similar to a crankshaft is thereby created.

In order to be able to operate the pivot pin by hand, it extends at least on one side through the wall of the outlet pipe and has a corresponding grip element there. The grip element and / or the pivot pin can have suitable latching elements in order to indicate the closed and open position to the user during operation.

The handle element can have a plate-shaped element at its free end, which in the closed position covers the outlet opening in order to offer protection against contamination of the outlet pipe. This cover plate arranged perpendicular to the grip element can, for example, be molded on. The handle element and / or the cover plate can have additional ribs on their outer sides, on the one hand to facilitate operation and on the other hand to prevent the user from opening the closure with his mouth.

The annular connecting element preferably has an opening which is elongate perpendicular to the longitudinal axis of the outlet pipe. In contrast to a circular opening, the advantage is that when the pivot pin is turned, the eccentric part can rotate freely without the locking element causing a rocking movement, which would lead to leaks in the locking element. This ensures a controlled vertical movement of the closure element.

An intermediate floor with an opening is preferably arranged in the outlet pipe above the pivot pin. In the closed position, the annular connecting element engages in this opening and closes it. This achieves an additional seal which prevents an explosion-like escape of the possibly pressurized container liquid during the opening process.

In this context, it is advantageous if the pouring part preferably has at least one pressure relief opening, which is preferably arranged in the wall of the pouring part between the pivot pin and the closure element.

At the beginning of the opening process, when the opening in the intermediate floor is still closed, the excess pressure can initially escape through the pressure relief opening (s) without gas or liquid being able to get into the outlet pipe.

The pressure relief opening preferably has a conically widening shape.

According to a second alternative, the object is achieved with a container closure, which is characterized in that the actuating element is a rotary cap mounted on the outer tube, which has a threaded tube in the interior of the outlet tube, and in that the closure element has a threaded pin which extends into the pouring part and which in the threaded pipe engages.

In this variant too, a rotary movement of the actuating element into a lifting movement of the Closure element implemented. The effort is also correspondingly low if the closure element is to be opened against a high internal pressure.

The rotary cap is preferably fixed in the axial direction, so that the rotary movement is completely converted into a lifting movement of the closure element. The container closure has the advantage that the container closure is closed by "turning to the right" and opened by "turning to the left".

The threaded tube has at least one opening to allow the liquid to exit the container from the inner tube into the threaded tube in the open position of the closure element and thus to allow it to be poured out.

In this embodiment, the grub screw can be designed such that it closes this opening when the closing element reaches the closed position. This embodiment can also have at least one pressure relief opening.

The closure element, which is used in both design variants, preferably has a first conical surface with the conical angle αi, which merges in the direction of the outlet pipe into a second conical surface with the conical angle 0: ₂ , with the conical angle σi ≥ 0 ₂ .

The cap preferably has a bottom wall with an inlet opening for the closure element.

These conical surfaces interact with a corresponding sealing surface which is molded onto the screw cap. The cap preferably has a protruding into the interior on the bottom wall annular sealing lip with a conical sealing surface whose cone angle ß = 0: ₂ . Since αi ≥ 0 ₂ , the closure element comes into contact with the sealing surface at an early stage during the closing process and, in the course of the further closing process, a large pressing pressure is exerted on the part of the sealing surface which abuts the first conical surface.

Conversely, during the opening process, the second conical surface will first detach from the sealing surface and only at the end of the opening process will the second conical surface also move away from the sealing surface. This enables continuous opening, which is particularly advantageous at high internal pressures and prevents an explosive discharge of the liquid into the outlet pipe.

Furthermore, this arrangement of conical surfaces effectively compensates for manufacturing tolerances with regard to the actuating element and the closure element. Due to an additional widening of the sealing lip, a dimensional reserve is available so that the pivot pin and locking element can tolerate a certain amount of play, which lowers the manufacturing costs.

According to a further embodiment, the inlet opening in the bottom wall has a recess designed as a valve seat. This makes it possible to largely sink the valve disk in the closed position in the inlet opening, so that a largely closed flat underside is created in the screw cap, which makes it possible to screw the container closure onto containers sealed with sealing film without the sealing film being protruded in the interior of the Cap is damaged. The cap and thus also the annular sealing lip preferably consists of a flexible or elastic plastic material. The closure element preferably consists of a rigid, non-deformable plastic material. The closure element can be designed in a plate shape and have stiffening ribs.

In principle, it is also possible to manufacture the cap from a rigid plastic material and to produce the closure element from an elastic, flexible material.

According to a further embodiment of the sealing plate, this can be provided with a coating made of an elastic polymer, preferably of a thermoplastic elastomer.

The material in the sealing area of the closure should have the so-called memory effect, i.e. H. have a resilience so that the deformation caused by pressure, time and temperature can be removed as quickly as possible after opening.

Overall, the container closures represent a stable arrangement, so that an internal pressure of up to 6.5 bar on the container closure does not lead to any leaks.

In the open position of the closure element, the free cross section between the valve plate and the sealing seat is preferably smaller than the free cross section in the opening of the intermediate floor. This embodiment has the advantage that the foaming in the outlet channel is significantly reduced in the case of foaming, in particular sugar-containing liquids. In particular, at the beginning of the liquid withdrawal, this ensures that the liquid portion is significantly larger than the foam portion than is the case with conventional container closures. An additional measure consists in attaching a reflector plate in the outlet duct. For this purpose, the closure element preferably has a reflector plate in the outlet channel of the outlet pipe, so that when the liquid flows out through the opening in the intermediate floor, the liquid is deflected and thus, in particular, a gas-liquid mixture settles before the liquid reaches the user's mouth.

The closure element preferably has a stiffening rib, which extends through the opening in the intermediate base and on which the reflector plate is molded.

The reflector plate is preferably arranged perpendicular to the longitudinal axis of the container closure. To ensure that the liquid flow is completely redirected, the area of the reflector plate is ≥ the area of the opening in the intermediate floor. This means that the reflector plate preferably covers at least the opening of the intermediate floor.

The design of the container closure according to the invention allows the components required for the closure to be manufactured with relatively large manufacturing tolerances, since in any case a seal is ensured either as a conical sealing plate or as a sealing plate with an elastic coating due to the design of the sealing plate. This is the only way to make the container closure inexpensive as a mass product.

The container closure is also characterized in that all components and surfaces that come into contact with the container contents during the removal of the liquid are smooth and have no hidden corners, so that easy cleaning is possible.

Because of these advantages, this container closure is particularly suitable for containers, in particular drinking bottles, with a carbonated liquid.

Exemplary embodiments of the invention are explained below with reference to the drawings.

Show it:

FIG. 1a shows a container closure in a perspective view with a protective cap,

1b shows the container closure according to FIG. 1a without a protective cap

FIG. 2 shows a vertical section through the container closure shown in FIG. 1b,

FIG. 3 shows a perspective illustration of the pivot pin,

FIG. 4 shows a perspective illustration of the closure element,

5a and 5b show a vertical section through the closure element together with the sealing lip in the open and closed positions, FIG. 6 shows a vertical section through the container closure according to a further embodiment,

FIG. 7 shows a vertical section through the container closure when the closure element is installed,

FIG. 8 shows a perspective illustration of the closure element according to the embodiment shown in FIGS. 6 and 7,

FIG. 9 shows a vertical section through the lower part of the container closure, which is screwed onto a bottle,

10 shows a vertical section through a container closure according to a further embodiment in the closed position and

11 shows a vertical section through the container closure according to the further embodiment in the open position.

A container closure 1 is shown in perspective in FIG. 1a. The container closure 1 has a screw cap 2 which has a corrugation 3 on the outer surface. The screw cap 2 has a tamper-evident ring 70 at the lower edge.

The screw cap 2 continues upwards in a pouring part 20, which comprises an outlet pipe 21 with an outlet channel 22 and with an outlet opening 24 (see FIG. 1b). In the pouring part 20, a pivot pin 30 is mounted perpendicular to the longitudinal axis 200 of the outlet channel 22, on which a lever 36 is formed with a handle 37 (see FIG. 1b). The pouring part 20 is covered by a protective cap 12 Tamper-evident ring 12 'covered, which is fastened on the screw cap 2 by means of the locking lugs 38. After the protective cap 12 has been removed, the closure device, which is arranged in the interior of the container closure and has a closure element 40, is opened by turning the lever 36, and the container contents can be removed.

FIG. 2 shows a vertical section through the container closure 1 shown in FIG. 1. The screw cap 2 has a peripheral wall 5, on the inside of which an internal thread 4 is arranged, by means of which the screw cap can be screwed onto a container opening, for example onto a drinking bottle. The peripheral wall 5 merges into a bottom wall 6, on the underside of which a sealing ring 9 is provided which interacts with the opening edge of the container. Radially inward, in the area of the inlet opening 23, a sealing lip 7 extends into the interior 10 of the cap 2 with the sealing surface 8, which cooperates with the sealing plate 41 of the closure element 40, and forms a sealing seat 7a, as is shown in the following figures is explained. The closure element 40 has a bell-shaped shape and extends upward through the inlet opening 23 of the outlet channel 22. The sealing plate 41 is provided with two conical sealing surfaces 42 and 43 and is articulated on the pivot pin 30 by means of an annular connecting element 47.

The pivot pin 30 is mounted in the pouring part 20 in a bearing section 25 a with its first central section 31. This central section 31 merges into an eccentric section 33, on which the annular connecting element 47 engages.

The eccentric section 33 merges into a second central section 34, which is followed by a bearing disk 35. This Bearing plate 35 is rotatably mounted in the wall of the pouring part 20 in the bearing section 25b. Outwardly, the pivot pin 30 continues in a lever 36 which has a handle 37 at the free end.

In Figure 2, the closure element 40 is shown shortly before the closed position. Accordingly, the eccentric section 33 is turned upwards and the lever 36 also points upwards. The operator can see that the closed position will soon be there. When the closed position is reached, the annular connecting element 47 engages in the opening 29 in the intermediate floor 28 and closes the opening 29.

By turning the lever 36, which can be done by a rotational movement to the right or left, the opening position of the closure element 40 is adjusted by pivoting the eccentric section 33 downward.

At the beginning of the opening process, the opening 29 is still closed. In the wall of the pouring part 20 30 pressure relief openings 27 are provided below the pivot bolt, which expand conically outwards. An overpressure is initially reduced through these pressure relief openings 27.

In Figure 3, the pivot pin 30 is shown enlarged. The first central section, which is supported in the pouring part 20, merges via a transition region 32 into the eccentric section 33, which extends into the second central section 34. This extension of the eccentric section has the advantage that the annular connecting element of the closure element cannot slip laterally, in particular in the closed position. The bearing disc 35 adjoins the second central section 34 and has a circumferential bead. The operating lever 36 runs upwards in a wedge shape and has the trapezoidal grip 37 at the free end.

The closure element 40 is shown in perspective in FIG. The closure element has a bell shape with a sealing plate 41, which has the two conical surfaces 42 and 43. A cup-shaped section 45 adjoins at the top, which is provided by means of stiffening ribs

44 is reinforced. Above the cup-shaped section

45, a vertical web 46 is arranged, which merges into the annular connecting element 47, which engages around the eccentric section 33 of the pivot pin 30. The opening 48 of the annular connecting element 47 has the shape of an elongated hole. This configuration of the opening 48 has the advantage that the eccentric section 33 can move in the horizontal direction, as can be seen in FIG. 5a.

The annular connecting element 47 is reinforced with a stiffening rib 49.

FIG. 5a shows a schematic illustration to explain the two conical surfaces 42 and 43 of the sealing plate 41 of the closure element 40 opposite the inlet opening 23 of the outlet channel 22. The detail X is also shown enlarged. The first conical surface 42 has a conical angle ot1 which is greater than the conical angle α2 of the second conical surface 43, which adjoins the first conical surface 42 upwards. The sealing lip 7 has a sealing surface 8, which is also conical and has the angle β. In the illustration shown here, the angles α2 and β are chosen to be the same size. The closed position is shown in FIG. 5b. It can clearly be seen that, owing to the larger cone angle α1, the first sealing surface 42 slightly presses the sealing lip consisting of elastic material with the sealing surface 8 outwards. This ensures an early seal during the closing process. Conversely, during the opening process, the inlet opening 23 is only fully opened at the end. The design by means of two conical sealing surfaces 42, 43 of different cone angles has the advantage that the sealing can take place continuously, which is particularly advantageous for contents that are under high pressure.

Another embodiment of the container closure is shown in FIG. This embodiment differs from the previous embodiment by a modified closure element 40. The closure element 40 has a sealing plate 41, which is provided with a covering 41a made of a soft plastic, in particular a thermoplastic elastomer. This coating 41a is clamped in the edge area of the sealing plate 41 and extends over the entire underside. The cover 41a projects radially outward so that it can interact with the sealing surface 8 of the sealing lip 7 during the closing process. The sealing lip 7, like the other components of the cap 2, is made of a solid plastic and is therefore only partially flexible. The elasticity of the cover 41a reversibly deforms it when the sealing plate 41 is moved into the closed position. Any component tolerances are thus compensated for by the coating 41a, i. H. with existing manufacturing tolerances, a tight seal of the inlet opening 23 is achieved in any case.

Above the annular connecting element 47, a stiffening rib 49 extends upwards, one at its upper end Reflector plate 400 carries. This reflector plate 400 extends perpendicular to the longitudinal axis 200 on both sides of the stiffening rib 49, the area of the reflector plate 400 being larger than the area of the opening 29. When the container closure is opened, pressurized liquid initially flows from the opening 29 against the underside of the reflector plate 400 and is thereby deflected radially. This leads to a calming of the flowing liquid. In the case of carbon-containing liquid, the gas pressure is initially discharged, which entrains liquid particles. Depending on the type of liquid, this also leads to foaming. These liquid particles are deflected by the reflector plate 400 and the foaming is significantly reduced.

Since the reflector plate 400 is preferably connected in one piece to the stiffening rib 49, this is, as can be seen in FIG. 7, preferably designed to be foldable to the extent that it can be inserted from below through the opening 29 when the closure element 40 is inserted. After passing through the opening 29, the reflector plate 40 automatically extends like an umbrella and assumes the position shown in FIG. 6.

The closure element 40 can be seen in a perspective illustration in FIG. The sealing plate 41 has an essentially rectangular shape which is adapted to the rectangular contour of the inlet opening 23. The coating 41 is fastened in the edge region of the sealing plate 41 and envelops the lower region of the sealing plate 41. A web 46, which has stiffening ribs 44, is formed vertically upwards on the sealing plate 41. Overall, a cross-shaped arrangement is created, which merges into the annular connecting element with the elongated opening 48. The stiffening rib 49 adjoins at the top, that in the edge region Has ribs 49a, 49b, so that a double-T structure is created. The reflector plate 40 is formed on the upper end.

A further embodiment is shown in FIG. 9, in which the bottom wall 6 has a sealing seat 7a in the form of a recess in the area of the inlet opening 23. The sealing seat 7a is thus displaced into the inlet opening 23, so that in the closed position the sealing plate 41 engages almost completely in the inlet opening, so that on the underside of the sealing plate does not or only slightly protrude into the interior 10. This makes it possible to screw the container closure onto a bottle neck 80, the bottle opening 81 of which is sealed on the end face with a sealing film 82. The sealing film is not or only slightly pushed inwards, but in any case not damaged, so that the contents remain sealed.

FIGS. 10 and 11 show a second alternative in vertical section in the closed and open positions. The closure element 40 is of identical design with respect to the sealing plate 41. The sealing lip 7 also corresponds to the sealing lip of the previously described embodiment.

In the embodiment shown here, the closure element 40 has a threaded pin 50 which is screwed into a threaded tube 65. This threaded pipe 65 extends in the outlet pipe 21 and is part of a rotary cap 60 which engages over the outlet pipe 21 by means of a bottom wall 64 and a peripheral wall 62 with external corrugation 61. Furthermore, the rotating cap 60 has a mouthpiece 68. The peripheral wall 62 has a latching bead 63 on its inner surface, which engages in a corresponding outer groove 26 of the outlet pipe 21. The rotary cap is thereby rotatably supported, but is fixed in the axial direction of the outlet pipe 21. By turning the rotary cap 60 is over the threads 51, 67 of the threaded tube 65 and the threaded pin 50 bring about a lifting movement of the sealing plate 41.

In order to prevent the sealing plate from rotating, a locking pin 52 can be formed on the sealing plate 41, which engages in a corresponding groove in the outlet pipe 21.

FIG. 11 shows the opening position in which the container contents can penetrate through the gap between the sealing plate 41 and the sealing lip 7 into the outlet channel 22 of the outlet pipe 21. From there, the liquid reaches the interior of the threaded tube through the openings 66 and can therefore flow away.

Both alternatives of the container closure are particularly suitable for drinking bottles, the contents of which can be under high pressure, such as. B. carbonated liquids.

The container closures can also be used for other liquid media.

LIST OF REFERENCE NUMBERS

Container closure screw cap corrugation internal thread circumferential wall bottom wall sealing lip sealing seat sealing surface sealing ring0 interior2 protective cap2 'tamper evident ring0 pouring part1 outlet pipe2 outlet duct3 inlet opening4 outlet opening5a, b bearing section for pivot pin6 groove7 pressure relief opening8 intermediate floor9 opening0 pivot bolt1 first central section5 transition area6 center plate3 lever area3 centering area6 lever area1 centering area3 centering plate3 lever area3 centering ring3 centering area3 lever area3 centering area3 lever area3 centering area3 centering area3 lever area3 centering area6 centering area6 centering area6 centering area3 centering area6 centering area6 centering area3 centering area6 centering area6 centering area3 centering area6 centering area6 centering area3 centering area6 centering area6 centering area3 centering area6 centering area3 centering area6 centering area3 centering area3 centering area6 Grip locking lug sealing element sealing plate cover first conical surface second conical surface a, b ribs stiffening rib cup-shaped section web ring-shaped connecting element opening stiffening rib grub screw external thread locking pin rotating cap external rifle circumferential wall locking bead bottom wall threaded tube opening internal thread mouthpiece tamper evident ring bottle neck bottle opening reflecting foil sealing plate longitudinal axis

Claims

Patent claims

1. Container closure (1), in particular closure for drinking bottles, with a cap (2) which can be attached to a container opening, a pouring part (20) arranged on the cap (2) with an outlet pipe (21) and with an outlet channel (22) of the Outlet pipe (21) closable closure device, which has a closure element (40) which in the closed position rests on a sealing surface (8) arranged at the inlet opening (23) of the outlet channel (22) and in the axial direction of the outlet pipe (21) by means of an actuating element a closed position into an open position and vice versa, characterized in that the actuating element is a pivot pin (30) arranged at right angles to the longitudinal axis (200) of the outlet pipe (21) and rotatably mounted in the outlet pipe (21) of the pouring part (20). .

2. Container closure (1) according to claim 2, characterized in that the pivot pin (30) within the outlet pipe (21) has a section (33) which is eccentric to its axis of rotation and to which the closure element (40) is articulated.

3. Container closure (1) according to claim 2, characterized in that the closure element (40) has an annular connecting element (47) which surrounds the eccentric section (33) of the pivot bolt (30).

4. Container closure according to claim 3, characterized in that the annular connecting element (47) has an elongated opening (48) extending perpendicular to the longitudinal axis of the outlet pipe (21).

5. Container closure according to one of claims 1 to 4, characterized in that an intermediate base (28) with an opening (29) is arranged in the outlet pipe (21) above the pivot pin (30).

6. Container closure (1) according to one of claims 1 to 5, characterized in that the pivot pin (30) extends outwards at least on one side through the wall of the outlet pipe (21) and has a handle element (37).

7. Container closure (1) according to one of claims 1 to 6, characterized in that the pouring part (20) has at least one pressure relief opening (27).

8. Container closure (1) according to claim 7, characterized in that the pressure relief opening (27) is arranged in the wall of the pouring part (20) between the pivot bolt (30) and the closure element (40).

9. Container closure (1) according to claim 8, characterized in that the pressure relief opening (27) has a shape that widens conically outwards.

10. Container closure (1), in particular closure for drinking bottles, with a cap (2) which can be attached to a container opening, a pouring part (20) arranged on the cap (2) with an outlet pipe (21) and with an outlet channel (22) of the outlet pipe (21) closable closure device, which has a closure element (40) which in the closed position rests on a sealing surface (8) arranged at the inlet opening (23) of the outlet channel (22) and in the axial direction of the outlet pipe (21) can be moved from a closed to an open position and vice versa by means of an actuating element, characterized in that the actuating element is a rotary cap (60) mounted on the outlet pipe (21), which has a threaded tube (65) inside the outlet pipe (21), and that the closure element (40) has a threaded pin (50) which extends into the pouring part (20) and which engages in the threaded tube (65).

11. Container closure (1) according to claim 10, characterized in that the rotary cap (60) is fixed in the axial direction.

12. Container closure (1) according to claim 10 or 11, characterized in that the threaded tube (65) has at least one opening (66).

13. Container closure (1) according to one of claims 1 to 12, characterized in that the closure element (40) has a first conical surface (42) with the cone angle CH, which extends into a second conical surface (43) in the direction of the outlet pipe (21). with the cone angle ct2, whereby for the cone angles αi ≥ α ₂ applies.

14. Container closure (1) according to one of claims 1 to 13, characterized in that the cap (2) has a bottom wall (6) with an inlet opening (23) for the closure element (40).

15. Container closure (1) according to one of claims 1 to 14, characterized in that the cap (2) on the bottom wall (6) has an annular sealing lip (7) which projects into the interior (10) and has a conical sealing surface (8). has, the cone angle of which is ß = α.

16. Container closure according to one of claims 1 to 15, characterized in that the inlet opening (23) has a recess designed as a sealing seat (7a).

17. Container closure (1) according to one of claims 1 to 16, characterized in that the cap (2) consists of an elastic plastic material.

18. Container closure (1) according to one of claims 1 to 17, characterized in that the closure element (40) consists of a rigid plastic material.

19. Container closure according to one of claims 1 to 18, characterized in that the closure element (40) has a sealing plate (41) with a coating (41a) made of an elastic polymer.

20. Container closure according to claim 19, characterized in that the elastic polymer is a thermoplastic elastomer.

1. Container closure according to one of claims 1 to 20, characterized in that in the open position of the closure element (40), the free cross section between the valve plate (41) and the sealing seat (7a) is smaller than the free cross section in the opening (29) of the intermediate base ( 28).

22. Container closure according to one of claims 1 to 21, characterized in that the closure element in the outlet channel (22) of the outlet pipe (21) has a reflector plate (400).

23. Container closure according to one of claims 1 to 22, characterized in that the closure element (40) has a stiffening rib which extends through the opening (29) of the intermediate base (28) and on which the reflector plate (400) is formed.

24. Container closure according to one of claims 22 or 23, characterized in that the reflector plate (400) is arranged perpendicular to the longitudinal axis (200) of the container closure.

25. Container closure according to one of claims 22 to 24, characterized in that the reflector plate (400) covers at least the opening (29) of the intermediate base (28).

26. Use of a container closure (1) according to one of claims 1 to 25 for containers with carbonated liquid.