DE8026653U1 - Beverage pack - Google Patents

Description

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Papier- und Kunststoff-Werke Linnich GmbH
4000 Düsseldorf 1

Beverage pack

The invention relates to a cardboard beverage pack, which can be coated on one or both sides with plastic, the wall of which passes through the drinking straw insertion point. Perforating or punching is weakened.

Beverage packs made of cardboard that are emptied using a drinking straw must be at the designated drinking straw piercing point experience a weakening of the wall using the TrinKialm to make it easier to pierce the wall. For this purpose, the wall is punched or perforated to a certain depth. The accuracy of the punching or However, perforation usually leaves something to be desired. Because of the small wall thickness, it is extremely difficult

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Make an incision to the correct depth. Often the incision is too deep, leaving fluid at the incision site flows out of the pack, or the incision is not deep enough for the drinking straw to catch Attempting to pierce the wall breaks off.

The object of the present invention is to create a beverage pack in which the straw piercing hole by means of the drinking straw can be opened without difficulty, but ensures a secure closure before piercing.

To achieve this object, it is proposed according to the invention that _x

that the wall has on both sides concentric incisions \, wherein the circumscribed area of the incision I to the outside of the beverage package is smaller than that of;

area delimited by the incision on the inside. )

The incisions on the inside and outside of the beverage pack at the straw piercing point are expediently each ring-shaped, in which case the one on the inside lying ring incision has a larger diameter than that lying on the outside of the beverage pack. Because of this training can be defined by the incisions

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The area can be easily pierced from the outside with the drinking straw, while pressure from the inside causes the Edge of the area bounded by the incision on the inside of the pack against the edge around the incision on the Can support the outer surface of the pack and thereby unintentional opening due to pressure from the inside is practically impossible.

The measure according to the invention has a particularly advantageous effect on beverage packs made of plastic on both sides coated cardboard, because then the outer and inner plastic layers are cut through, so that when the wall is pierced there is no longer a relatively tough plastic layer but only paper fibers have to be torn, which is relatively easy. With a concentric arrangement of the incisions on the. Inside and outside of the beverage pack it is also ensured that the wall is not completely cut through and thus a leak occurs. J

Optimal opening conditions arise when the cutting depth is greater than half the wall thickness of the pack. This not only removes the plastic layers cut through, but also the paper fibers in the ring area, so that opening is even easier because there are no paper fibers have to be torn, but only need to be separated in the plane. f

The invention is explained in more detail with the aid of the drawing.

Fig. 1 shows the puncture point of the drinking hood on an enlarged scale in view and

Fig. 2 in cross section in one embodiment and Fig. 3 in a further embodiment,

[I Fig. 4 is a longitudinal section through a punching tool

for making the incisions at the straw piercing point.

The Vfand 1 of the beverage pack consists of both sides with

Plastic 2-coated cardboard 3. At the intended drinking straw piercing point 4, the annular incision 5 ^{is from the outside of the A beverage pack and from}

the inner side of the annular incision 6 is provided. The annular incision 6 delimits on the inside the beverage pack has a larger area than the annular incision 5 on the outside of the beverage pack. Both incisions are concentric. In principle, the incisions 5 and 6 can also be angular or oval, but For reasons of simplicity, the circular shape is recommended.

As can be seen from Fig. 2, the incisions 5, 6 expediently placed so deep that the plastic layer 2 cut through completely on both sides of the cardboard 3 is. This then makes it easier to pierce the wall 1 by means of the drinking straw 7, the dash-dotted lines indicated tear line 8 will run from the base of the incision 5 to that of the incision 6.

According to FIG. 3, the incisions 5, 6 can be deeper than half the thickness of the wall 1. When opening then no longitudinal fibers are more torn but only parallel fibers are separated.

The punching tool for making the incisions 5 consists, according to FIG. 4, of a lower punch 9 and a punch 10 with a smaller diameter in the upper punch 11 that can be raised and lowered. After the cut has been made Both punches 9, 10 can also be lowered or raised in order not to prevent the pack web from being continued hinder.

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Claims (1)

Λ · · ■ ·· ■ · fl · «HAI ft * I · · · · •! ····! · ■ ■■■ · · ■ • · ■ COHAUSZ & 'FOTRÄCK PATBNTANWA LTS OFFICE SCHUMANNSTR, 97. D-4000 DÜSSELDORF Telephone: (02 11) 68 33 46 Telex; OBBS 6513 cop d PATENT ADVOCATE:
Dlpl.-Ing. W. COHAUSZ Dlpl.-Ing. R. KNAUF Dipl.-Ing. HB COHAUSZ Dipl.-Ing. DH WERNER · 10/3/3980 f claims . Beverage packaging made of cardboard, which can be coated with plastic on one or both sides, the wall of which is at the straw piercing point is weakened by perforating or punching, characterized in that that the wall (1) has concentric incisions (5, 6) from both sides, the from the incision (5) delimited area on the outside of the beverage pack is smaller than that of the incision (6) on the inside delimited area. r. 2. Beverage pack according to claim 1, characterized in that the depth of the incisions (5, 6) is in each case greater than half the thickness of the wall (1). 34 259
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