CN114174192A

CN114174192A - Closure for a beverage container

Info

Publication number: CN114174192A
Application number: CN202080056445.5A
Authority: CN
Inventors: W·赞格勒
Original assignee: Netzst Machinery Co ltd
Current assignee: Netzst Machinery Co ltd
Priority date: 2019-08-20
Filing date: 2020-07-21
Publication date: 2022-03-11
Also published as: WO2021032390A1; US20220289441A1; DE102019122274A1; EP4017810A1; CA3147959A1

Abstract

The invention relates to a closure for a beverage container, comprising a lid (2), a securing strap (6) and a retaining strap (4). The cover (2) is connected to the holding strap (4) via a holding strap connection (1), and the holding strap (4) is connected to the securing strap (6) via a securing strap connection (13). According to the invention, the retaining strap connection (1) and the securing strap connection (13) are arranged diametrically opposite one another, and a constriction (5) is provided in each of the two retaining strap sections between the retaining strap connection (1) and the securing strap connection (13). The narrowing (5) is designed in such a way that an irreversible lengthening of the retaining band (4) can take place when the closure cap is unscrewed, and the cap (2) can be moved into an open position in which the underside of the cap (2) lies in or below a plane (E) in which the retaining band (4) lies when the retaining band (4) rests with its underside on the top side of the securing band (6).

Description

Closure for a beverage container

Technical Field

The present invention relates to a closure for a beverage container according to the preamble of patent claim 1.

Background

Such a closure is known from document US 6,474,491B 1. Such a closure has the advantage that the closure hangs in the open state on the beverage container and remains securely connected thereto (see US 6,474,491B 1, fig. 8). The closure cap is thus not lost. However, it is a disadvantage of the known closure cap that the cap is often in contact with the face of a person when using the beverage container, which is often perceived as disturbing or uncomfortable.

Disclosure of Invention

Starting from this, the invention aims at further developing a closure of this type in such a way that it can be brought into a position when opening the beverage container in which the lid normally does not come into contact with the person's face when the person uses the beverage container.

This object is achieved by a closure cap with the features of patent claim 1. Advantageous embodiments and developments are found in the dependent claims.

The core concept of the invention is that the retaining strap connection and the securing strap connection (Garnitieband-securing) are arranged diametrically opposite one another, and in each of the two retaining strap sections extending between the retaining strap connection and the securing strap connection, the retaining strap is each equipped with a narrowing, wherein the narrowing is formed in the retaining strap in such a way that an irreversible lengthening of the retaining strap can take place when the closure cap is unscrewed, and after the closure cap is completely unscrewed, the irreversible lengthening of the retaining strap is present in such a way that, in the open state of the closure cap, the cap can be moved into an open position in which the bottom side of the cap is located in the plane of the securing strap or below it when the retaining strap rests with its bottom side on the top side of the securing strap. The retaining strap connection on the one hand and the securing connection on the other hand are configured such that the open position of the lid remains unchanged at least with respect to the upright beverage container as long as the lid does not move. Such a closure cap according to the invention has the advantage that the cap will not normally come into contact with the face of a person when using the beverage container. At the same time, it is ensured that the lid remains reliably connected to the securing strap and thus to the beverage container and is not lost.

According to claim 2, the constriction in the retaining band can be introduced axially and/or radially into the retaining band. If the constriction is configured approximately parallel to the longitudinal axis of the closure cap, an axial constriction is present. In a side view of the closure cap, recesses extending in the circumferential direction of the retaining strip can be seen. A radial constriction is present if the constriction is configured approximately in the radial direction with respect to the longitudinal axis of the closure cap. As can be seen in the plan view of the closure cap, the retaining strip has a smaller thickness in the radial direction in the region of the constriction than outside this region. As a result, the constriction forms a region with defined expansion properties, similar to a tie rod made of plastic, for example, which is used for testing purposes. The constriction can preferably be arranged such that in the cross section of the retaining strip, in the region outside the constriction, a center or center of the cross section is given and the longitudinal axis of the constriction lies approximately in this center or center.

The constriction can preferably be arranged in the middle section of the retaining band section. This has the advantage that the length and cross section of the constriction can be adapted to the respective rigidity of the plastic selected for the cover, in order to achieve a suitable, irreversible lengthening of the constriction and thus of the retaining strap or of the retaining strap section which extends between the retaining strap connection and the securing strap connection. In the closure cap according to the invention, it should not happen that the extensions or constrictions are affected by the connections to the securing or holding straps of the closure cap.

The embodiment according to claim 4 allows the thread section and thus the opening stroke to be designed by means of a variably designable extension between the closed position of the closure cap and the open position of the closure cap, even for taller closure caps. The invention is particularly suitable for use in CSD beverage containers, particularly in PET bottles. "CSD" is an abbreviation for "carbonated soft drink" i.e., carbonated beverage. CSD beverage containers have standardized threads. Which is a known and generally accepted industry standard in the beverage industry. From the closed state up to the open state, the opening stroke is set corresponding to approximately two revolutions. In other words, this means a path in the circumferential direction of about 720 °, preferably about 700 °. In beverage containers for carbonated beverages, a smaller path in the circumferential direction and thus a smaller opening stroke are common and sufficient.

According to a further embodiment, a plurality of holding elements (Rueckhalter) can be provided on the securing strap, which can engage with a holding shoulder on the beverage container and are axially fixed there in the closed state of the closure cap. It is thus ensured that the band remains axially fixed and can only be rotated radially together when unscrewing the closure cap.

In order to establish a connection between the cover, the retaining band and the securing band, so-called breaking tabs (Brechsteg) can be provided in a suitable manner. The cover can thus be connected to the retaining band via a plurality of retaining band breaking webs. Furthermore, the retaining strap can be connected to the securing strap via a plurality of securing strap breaking webs. When the closure cap is unscrewed and the cap is thus displaced axially, the breaking webs break and the cap is moved axially away from the securing strap.

The axial displacement of the cap when unscrewing the closure cap furthermore leads to an irreversible lengthening of the retaining band, as it is specified in claim 1. This axial displacement causes the retaining band to be stretched at the constriction, wherein the thread of the beverage container remains wound by the retaining band. When the lid is free, it can be swung open via the retaining strip connection and placed against the beverage container. In this case, an open position is assumed in which the underside of the cover lies in the plane of the retaining strip or below it when the retaining strip rests with its underside on the top side of the securing strip. The reclosing of the beverage container with the closure according to the invention is carried out in the reverse order.

According to claim 8, the retention strap joint and/or the securing strap joint may be configured as a "butterfly" joint. Such a design of the coupling provides the advantage that the closure is pressed firmly onto the bottle shoulder and is fixed in its position so that it does not interfere with drinking in the case of use.

The embodiment according to claim 9 has the advantage that the narrowing of the retaining band is also produced by means of injection molding. The injection-molded constriction provides a higher retention reliability of the lid at the beverage container than a constriction produced later by machining.

Drawings

An embodiment of the present invention will be described in more detail below with reference to fig. 1 to 5.

Detailed Description

Fig. 1 shows the closure flap in the closed state in a view of the retaining strip connection 1 between the flap 2 and the retaining strip 4. Fig. 2 shows the same closure cap in a view rotated 90 deg. counter-clockwise around the longitudinal axis a. The retaining strap joint 1 between the cover 2 and the retaining strap 4 is thus seen in fig. 2 at the right edge of the cover 2. At the left edge of the cover 2 in fig. 2 there is a guarantee tape joint 13. At the securing strap connection 13, the holding strap 4 is connected to the securing strap 6, which in the open state of the closure is also below the thread at the beverage container 9 (see fig. 2 to 5). According to a first aspect of the invention, the retaining strap link 1 and the securing strap link 13 are thus arranged diametrically opposite one another. This results in two retaining strap sections extending between the retaining strap connection 1 and the securing strap connection 13, wherein in fig. 2 to 5 only one of the two retaining strap sections is visible, namely the retaining strap section which is forward in the viewing direction, namely the retaining strap section which is in front of the thread of the closure cap 2. The other retaining band section is behind the thread of the closure cap 2 and is therefore not visible in the figures. A constriction 5 is provided in the front retaining strap section, preferably arranged centrally. Likewise, a constriction is provided in the rear retaining strap section, which is not visible, which constriction is also preferably arranged centrally. As a result, the two constrictions 5 are therefore situated diametrically opposite one another. According to a further aspect of the invention, the narrowing 5 is formed in the retaining band 4 in such a way that an irreversible lengthening of the retaining band 4 can occur when the closure cap is unscrewed (see fig. 3 to 5).

For the connection between the cover 2, the retaining strip 4 and the securing strip 6, so-called breaking tabs can be provided in a suitable manner. The cover 2 can thus be connected to the retaining band 4 via a plurality of retaining band breaking webs 3. Furthermore, the holding strap 4 can be connected to the securing strap 6 via a plurality of securing strap breaking webs 7.

The retaining strap joint 1 can preferably be configured as a so-called "butterfly" joint or "butterfly" film hinge. Such film hinges are known per se and therefore need not be described in more detail here. In fig. 1, the display of the film hinge 1 as a double-headed arrow opening outward (> - - -) shall indicate that it shall be a butterfly-shaped film hinge.

The securing strap 6 has a plurality of retaining elements 8 distributed over the circumference, which are oriented inward and bear against the beverage container below the retaining shoulder 14. Typically, these holders have a tapered cross section, wherein on the bottom side of the holder there is an inclined face and on the top side of the holder there is a face parallel to the cross section of the closure lid and thus to the retaining shoulder. Due to the inclined surface on the bottom side, the closure can be pressed onto the beverage bottle, wherein the retaining element 8 moves on the retaining shoulder 14 at the beverage container 9. The top side of the retaining element 8 is parallel to the bottom side of the retaining shoulder 14. Thereby, it is ensured that the band 6 remains axially fixed with respect to the beverage container 9 and can only be rotated together in the circumferential direction upon manipulation of the closure cap or lid 2.

Fig. 3 shows the state of the closure after the closure has been completely unscrewed. This unscrewing is performed by moving the cap 2 counter-clockwise (see arrow 10 in fig. 3). In the case of a CSD beverage container, approximately two counter-clockwise rotations of the lid 2 are provided from the closed state up to the open state. In other words, this means a path in the circumferential direction of 720 °, preferably about 700 °. In beverage containers for carbonated beverages, shorter distances in the circumferential direction are common and sufficient. Ensuring that the belt 6 remains axially fixed under the retaining shoulder 14. By axially moving the cap 2, the breaking

webs

3 and 7 break and the cap 2 is axially distanced from the guarantee tape 6. The axial displacement of the cover furthermore causes the retaining band 4 to be extended at the constriction 5. The retaining strap 4 or the constriction 5 is designed in such a way that an irreversible lengthening of the retaining strap 4 results here. The thread of the beverage container here remains wound by the retaining band 4. When the lid 2 is free (open state), it can be swung open via the retaining strap joint 1 and placed at the beverage container 9 (see

reference numerals

11 and 12 in fig. 3 and fig. 4 with the lid positions 2 and 2'). At the end of the opening movement, an open position can be assumed in which the underside of the cover 2 lies in or below the plane E in which the retaining strap 4 lies when the underside of the retaining strap 4 rests on the top side of the securing strap 6. This situation is shown in fig. 5. Before swinging open, the lid has position 2 in fig. 5. Position 2' of the lid shows an intermediate position when the lid is swung open, and position 2 ″ shows a final position at the end of the swinging lid. The retaining strap connection 1 and the securing strap connection 13 are configured here such that this open position of the lid 2 remains unchanged at least with respect to the upright beverage container 9 as long as the lid 2 does not move. Reclosing of the beverage container with the closure according to the invention is carried out in the reverse order. When the beverage container is used in the state as shown in fig. 5, as long as attention is paid that the lid 2 is directed to the side when drinking from the beverage container, contact of the lid 2 with the face of a person does not generally occur.

List of reference numerals

1 holding strap connecting part

2 cover

3 holding band breaking joint strip

4 holding belt

5 narrowing down part

6 guarantee band

7 guarantee the broken joint strip of area

8 holding member

9 beverage container

10 direction of rotation when unscrewed

11 first swing open

12 second swing open

13 guarantee belt connection part

14 ensure that the strap retains the shoulder.

Claims

1. Closure cap for a beverage container, comprising a cap (2), a securing strap (6) and a retaining strap (4), wherein the cap (2) has an internal thread which is configured to match an external thread of the beverage container, wherein the cap (2) is connected to the retaining strap (4) via a retaining strap connection (1), and wherein the retaining strap (4) is connected to the securing strap (6) via a securing strap connection (13),

it is characterized in that the preparation method is characterized in that,

the retaining strap connection (1) and the securing strap connection (13) are arranged diametrically opposite one another, and in each of two retaining strap sections (4a,4b) extending between the retaining strap connection (1) and the securing strap connection (13), the retaining strap (4) is each equipped with a constriction (5), wherein the constriction (5) is designed in the retaining strap (4) in such a way that an irreversible lengthening of the retaining strap (4) can take place when the closure cap is unscrewed, and after complete unscrewing of the closure cap, the irreversible lengthening of the retaining strap (4) is present in such a way that, in the open state of the closure cap, the cap (2) can be moved into an open position in which, in particular when the retaining strap (4) rests with its bottom side on the top side of the securing strap (6), the underside (2a) of the lid (2) is located in or below a plane (E) in which the retaining strap (4) lies, and wherein the retaining strap connection (1) and, if appropriate, the securing strap connection (13) are designed in such a way that the open position of the lid (2) remains unchanged at least in relation to the erected beverage container as long as the lid (2) is not moved.

2. Closure cap according to claim 1, characterized in that the constriction (5) is introduced axially and/or radially into the retaining band (4).

3. Closure cap according to claim 1 or 2, characterized in that the constriction (5) is arranged in a middle section of the retaining band section (4a,4 b).

4. A closure according to any one of the preceding claims, wherein an opening stroke is provided corresponding to the highest two revolutions of the lid (2) between the closed state of the closure and the open state of the closure, wherein there is a course of the lid (2) in the circumferential direction which is less than or equal to 720 °, preferably less than or equal to 700 °, and wherein it is in particular a closure for a CSD beverage container.

5. Closure cap according to one of the preceding claims, characterized in that a plurality of retaining elements (8) are provided at the securing strip (6), which can engage with a retaining shoulder (14) at the beverage container and are axially fixed there in the closed state of the closure cap.

6. A closure according to any of the preceding claims, wherein the cover (2) is connected with the retaining band (4) via a plurality of retaining band breaking tabs (3).

7. Closure cap according to any of the preceding claims, characterized in that the retaining strap (4) is connected with the securing strap (6) via a plurality of securing strap breaking webs (7).

8. A closure according to any preceding claim, wherein the retention strap link and/or the assurance strap link is configured as a "butterfly" hinge.

9. A closure according to any one of the preceding claims, which is manufactured by means of injection moulding.