EP0011822A1 - Hinged closure for a compressible container - Google Patents

Abstract

The closure is to be made in one part, is to have the largest possible diameter as a stand base for the container, is to have a captive lid and be suitable for receiving additions to form a device for producing a two-coloured or multicoloured striped line. Setting out from a closure having a lid 5 which is hinged via a film hinge 4 to a clamping ring 2 provided for plugging onto the orifice 1 of the container 7, the invention is characterised by a coaxial tubular channel 3 which is integrated with the clamping ring 2, is fitted into the orifice 1, extends, on the one hand, into a sealing ring cone 6 situated in the lid 5 when the latter is closed and, on the other hand, projects at least just as far into the container 7 as the clamping ring 2 surrounds the orifice 1 on its outside (Fig. 2). <IMAGE>

Description

The invention relates to a folding hinge closure for a compressible container, for example for a toothpaste tube, consisting of a clamping ring for plugging onto the mouth of the container and a lid integrated with the clamping ring via a folding or film hinge.

Known closures of this type, also referred to as "one-handed closures", are placed on the outside of the mouth of the respective container. In comparison to the diameter of the container, these closure systems have a relatively small outer diameter in practice and are therefore not readily suitable for placing the container overhead or as so-called stand-up tubes. The lid normally used has a sealing cone that dips into the mouth of the closure. This sealing system is unfavorable, because when closing the product is pushed out of the side of the container mouth and thereby a ver pollution of the mouth is significantly promoted. The previously known one-hand or folding hinge closures are not suitable for simultaneously dispensing two or more different paste-like substances in the form of a striped strand.

However, two or more colored strands can be made with other known closure systems. In this case, such a piece of pipe provided with an external thread is inserted into the mouth of the tube or the container such that it extends into the space of the tube to be filled with product. What is important here is a passage that opens laterally into the pipe section from the inside of the container (see DE-OS 2 619 936 '). However, the known closure system consists of two parts, i.e. the container is to be closed with the aid of a separate screw cap.

The invention has for its object to provide a one-piece - that is, a non-losing lid - closure of the type mentioned, which has a sufficiently large base as a base for the container or tube, the lid of the mouth without the risk of being pressed out Product tightly closes and which is to be readily designed as a closure body suitable for dispensing a two-colored or multi-colored striped strand. The solution to this problem according to the invention is characterized by an integrated with the clamping ring comprising the mouth, substantially coaxial, fitted into the mouth and inserted into this tubular channel, which on the one hand with the lid closed into one located in the latter tion ring cone extends and on the other hand extends at least as far into the container or into its mouth as the clamping ring includes the mouth on the outside.

The invention has created a one-piece closure member in which the advantages of previous one-hand or hinged hinge closures are combined with those of previous screw closures without taking on the respective disadvantages. A major advantage is the one-piece design of the system consisting of the container mouth, lid and, if appropriate, the streak-forming element. The new closure can therefore be produced in one operation, leave the production machine in the closed state and be applied to the container or tube in a further operation. In contrast, with previously known closures of a similar type, two separate work steps were required in both cases, both when manufacturing and when assembling the closure.

The combined effect of the closure mouth of the integrated channel drawn up into the lid and the external sealing of the mouth by the projecting sealing ring cone on the inside of the lid is also particularly favorable. Since this seal surrounds the mouth of the closure or the channel from the outside, contamination of the mouth part is largely eliminated.

The integrated tubular channel fitted or to be inserted into the mouth of the container or tube, that in a container designed as a tube should extend at least to the beginning of the shoulder slope inside the tube not only results in a product-tight and tight hold of the closure member on the container but also provides corrosion protection for the mouth of the container or tube. Experience has shown that this area is often not provided with a sufficient protective lacquer layer and thus does not always guarantee that the closure is designed in accordance with hygiene requirements. These problems are also eliminated by the hinged hinge closure according to the invention.

With a closure for the simultaneous dispensing of at least two different, paste-like substances in the form of a - optionally multi-colored - striped strand, the channel is extended into the space of the container or tube to be filled with product and has at least one from the inside of the Container laterally opening into the channel extension. In principle, stripe-forming organs known per se, as are known, for example, from DE-AS 1 214 141 and DE-OS 2 619 936, can be used in this context. For example, the passages in the channel wall can also be provided at different distances from the channel end in order to be able to form tri-colored or multi-colored strands.

In the case of containers made of multi-layer material, that is to say so-called plastic composite tubes, the separately manufactured mouthpiece has so far been retrofitted with the tubular tube body welded together. The separate operations for connecting the tube bodies and the mouth section and for producing the tube mouth can, however, be omitted if the closure according to the invention is produced with or without a streak-forming element simultaneously with the application to the so-called plastic composite tube. So while previously four steps were required to manufacture the closure member and apply it to the tube body - namely the separate manufacture of the closure insert on the one hand and the closure cover on the other hand and the separate connection of the closure insert and container on the one hand and the application of the cover on the other - can each be applied using the teaching according to the invention two of these manipulations are summarized.

• Fig. 1 einen geöffneten Verschluß zum Auspressen einfarbiger Paste;
• Fig. 2 den Verschluß gemäß Fig. 1 mit auf die Öffnung gesetztem Deckel;
• Fig. 3 einen zum Abgeben eines zweifarbig gestreiften ausgebildeten Verschluß; und
• Fig. 4 einen Verschluß ähnlich demjenigen von Fig. 3 jedoch mit Mitteln zum Auspressen eines dreifarbigen Stranges.

Further details of the invention are explained on the basis of the schematic representation of exemplary embodiments. Show it:

• 1 shows an opened closure for pressing out monochrome paste;
• FIG. 2 shows the closure according to FIG. 1 with the cover placed on the opening;
• 3 shows a closure designed for dispensing a two-colored striped closure; and
• Fig. 4 shows a closure similar to that of Fig. 3 but with means for squeezing a tri-color strand.

1 and 2 consists of the clamping ring 2 comprising the container mouth 1, the coaxial and integrated with the clamping ring 2 and fitted into the mouth 1 and inserted into the tubular channel 3 and the film hinge 4 with the clamping ring 2 connected lid 5. The channel 3 extends on the outside of the closure - with the lid 5 closed - into a sealing ring cone 6 located on the inner surface of the lid and extends at the other end at least as far into the container 7 or into its mouth 1 as the clamping ring 2 comprises the mouth 1 on the outside thereof. In addition to the sealing ring cone 6, the cover 5 preferably has an outer edge 8 which has the same outer circumference as the clamping ring 2, in such a way that the outer surface of the closed closure is flat, except for an opening handle 9, if necessary.

1 and 2 is in one piece and has such a large outer diameter that it can easily serve as a base for the container. The lid 5 is captively connected to the remaining part of the closure body via the film hinge 4, a relatively simple handling is therefore ensured. The channel 3 protruding into the mouth 1 of the container 7 and integrated with the outer clamping ring 2 ensures sufficient product tightness both on the container mouth 1 and on the inner wall of the lid 5, where the outlet of the channel 3 when the lid 5 is closed from the Sealing ring cone 6 is surrounded.

3 and 4 show how the closure can advantageously be expanded, for example, so that it is suitable for dispensing a striped strand with at least two different paste-like substances. 3, the channel 3 is extended into the space 10 of the container 7 to be filled with product and has at least one passage 12 which opens laterally into the channel extension 11 from the inside of the container 7. 4 correspondingly more passages, z. B. the passages 12 and 13 may be provided at different distances from the inner channel end 14. Such channel extensions 11 or so-called “strip nipples” projecting into the interior of a tube 7 are known per se from DE-OS 2 619 936.

List of reference numbers

1 = container mouth 2 = clamping ring

3 = channel

4 = film hinge 5 = lid

6 = sealing ring cone 7 = outer edge of 5 8 = outer edge

9 = opening handle 10 = space in 7

11 = channel extension 12 = first passage 13 = second passage 14 = inner channel end

Claims (5)

1. hinged hinge closure for a compressible container, for. B. for a toothpaste tube, consisting of a clamping ring for plugging onto the mouth of the container and a lid integrated with the clamping ring via a folding or film hinge characterized by an essentially coaxial with the clamping ring (2) integrated into the mouth ( 1) fitted and inserted into this, tubular channel (3), which on the one hand extends with the cover (5) closed into a sealing ring cone (6) located in the latter and on the other hand at least as far into the container (7) or into its mouth ( 1) protrudes as the clamping ring (2) surrounds the mouth (1) on the outside. 2. Closure according to claim 1, characterized in that the channel (3) in a container (7) designed as a tube extends at least to the beginning of the shoulder slope in the tube interior (10). 3. Closure according to claim 1 or 2 for the simultaneous delivery of at least two different pasty substances in the form of a striped strand, characterized in that the channel (3) in the product-filled space (10) of the container (7) extends into it and has at least one passage (12) opening from the inside (10) of the container (7) laterally into the channel extension (11). 4. Closure according to claim 3, characterized in that passages (12, 13) are provided at different distances from the channel end (14). 5. Closure according to one or more of claims 1 to 4, characterized in that the cover (5), in addition to the sealing ring cone (6) comprising the channel exit when closing, has an outer edge (8) which has the same outer circumference as the clamping ring (2) .

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