Closure device for beverage composite packaging with integrated puncture device for user-controlled ventilation

Abstract

Closure device for beverage composite packaging (1), comprising a pouring element (2) fixedly arranged on the packaging (1) and a lid corresponding to it, wherein the lid is permanently and securely connected to the packaging (1) or the pouring element (2) via a flexible retaining element (3), characterized in that at least one integrated puncture device (4) is arranged on the lid or on the retaining element (3), which is designed to create a ventilation hole in the wall of the packaging (1) by means of a guided pivoting movement of the open lid around the retaining element (3).

Description

[0001] Technical field: The invention relates to a closure device for liquid containers (1), in particular gable-topped cartons made of composite material. It relates to systems with a permanently attached lid (tethered cap) which is permanently connected to a pouring element (2) via a retaining element (3).

[0002] Problem statement: Conventional closures often result in an uneven flow of liquid ("gurgling") when pouring, as air cannot flow into the packaging (1). Existing venting systems are often expensive to manufacture or compromise the sterility of the product before first use.

[0003] Detailed functional description: The device according to the invention utilizes the mechanical positive guidance of the lid by the retaining element (3). A puncture element (4), preferably designed as a tapered plastic pin, is located at the outer edge of the lid.

[0004] After the lid of the pouring element (2) is mechanically opened, the user pivots the lid backwards by approximately 180 degrees. The retaining element (3) acts as a defined guide rail and lever arm. At the end of the pivoting movement, the puncture device (4) is guided onto the surface of the packaging (1).

[0005] To prevent incorrect operation, the packaging (1) can have a visual marking (e.g., a printed dot or a colored crosshair) at the exact point of impact of the puncture device (4). By applying targeted finger pressure to the folded-over lid, the puncture device (4) pierces the wall of the packaging (1) and creates a ventilation opening.

[0006] Advantages and Hygiene: A key aspect of the invention is maintaining product hygiene. The puncture device (4) is geometrically positioned so that it does not touch or damage the packaging (1) when the lid is closed. The hermetic seal remains intact until the moment of pouring. Ventilation is only activated by the conscious action of the user. Since the puncture device (4) can be manufactured as a single piece with the lid, there are no additional material costs in production. Reference list for file number 20 2026 001 454.7 Fig1: Perspective view of the ventilation system for a composite beverage packaging 1 package (beverage carton / liquid composite packaging) 2 Pouring element (pour spout) 3 Retaining element (retaining strap / hinge / band-“Tethered Cap”) 4 Puncture organ (thorn / pricker / piercer)

Claims

Closure device for beverage composite packaging (1), comprising a pouring element (2) fixedly arranged on the packaging (1) and a lid corresponding to it, wherein the lid is permanently and securely connected to the packaging (1) or the pouring element (2) via a flexible retaining element (3), characterized in that at least one integrated puncture device (4) is arranged on the lid or on the retaining element (3), which is designed to create a ventilation hole in the wall of the packaging (1) by means of a guided pivoting movement of the open lid around the retaining element (3). Closure device according to claim 1, characterized in that the puncture organ (4) is designed as a tapered spike, prick or cutting element which is manufactured in one piece with the lid or the retaining element (3) by injection molding. Closure device according to claim 1, characterized in that the retaining element (3) acts as a lever arm and guide rail to direct the puncture organ (4) to a predefined position on the surface of the packaging (1) during a pivoting movement of approximately 180 degrees. Closure device according to one of the preceding claims, characterized in that the puncture organ (4) is positioned on the radial outer edge of the lid in order to utilize a maximum lever travel when folding over. Closure device according to one of the preceding claims, characterized in that the ventilation hole produced by means of the puncture organ (4) enables gurgling-free pouring of the liquid from the pouring element (2) by means of constant air equalization. Closure device according to one of the preceding claims, characterized in that an optical or haptic marking is arranged on the surface of the packaging (1) at the location which corresponds to the impact position of the puncture organ (4) when the lid is completely folded back. Closure device according to one of the preceding claims, characterized in that the puncture organ (4) is positioned such that the hermetic seal of the packaging (1) is maintained in the open state until conscious pressure is applied by the user.

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