HUT67070A - Aluminium bottle for drinks and other liquids - Google Patents

Abstract

An aluminium bottle for beverages has a circular-cylindrical hollow body 1 and a bottom 4 which is integral therewith and a truncated cone-shaped shoulder 2 on the side opposite the bottom 4, which shoulder merges into a substantially cylindrical bottle neck 3. In order to be able to close the bottle with a crown top 8, the end of the bottle neck 3 is moulded to form a mouthpiece 5 which has a bead 6 at its upper end, adjoining which bead towards the bottom is a lip 7 into which the edge of the crown top 8 engages, the bead 6 having a larger diameter than the lip 7. Between the lip 7 and the shoulder 2 there is a transition part 9 with an enlarging diameter. <IMAGE>

Description

BACKGROUND OF THE INVENTION The present invention relates to aluminum bottles for beverages and other liquids having a cylindrical hollow body, a one-piece tapered or spherical shoulder, a bottleneck formed from a conical or substantially cylindrical shoulder, and a body covering a body opposite the body of the bottle neck.

Aluminum bottles, like white or aluminum beverage cans, have the important advantage of being much lighter than glass bottles, such as being used as a drink holder for travel, hiking, etc. take them with them in time.

Drink cartons have the advantage that they are easy to manufacture and very easy to fill with a lid flanged with the body of the carton, which has the disadvantage of being difficult to drink, not resealable and very easy to splash due to their cylindrical shape.

-2The glass beverage bottles on the market are made and available in many different types, such as flanged cap, screw cap, frog, etc., etc. These bottles are very easy to open and partly re-close, thanks to their designed bottle neck, they facilitate drinking and prevent the beverage from splashing easily. The disadvantage, however, is the high weight and fragility of the bottles, which can be dangerous especially for children.

In order to combine the advantages of glass bottles, ie easier and smoother handling, re-closure with the advantages of aluminum beverage cans, such as weight, breakage, several intermediate solutions have been achieved. For example, DE-GM 87.15.676 describes a bottle-shaped aluminum box with a frog lock.

This bottle has achieved great success in practice due to the combination of unusual material shape and very good practical utility on the market. In contrast to this is the difficulty of filling the beverage and the fact that the frog lock is very difficult to place on the bottle and to seal the bottle. To our knowledge, there is no commercially available filling and closing automatic production line for cylinders of this design, meaning that the cylinders need to be manually filled and sealed, which makes large-scale, economical mass production impossible.

The object of the present invention is to develop the aluminum bottle from the shape of the last known, known aluminum cylinder so that it can be sealed and filled into automatic production lines, preferably using conventional closure methods used for glass bottles, preferably with the same equipment for filling and closing glass bottles. used to seal with a pressed cap. In doing so, the aluminum bottle must be economically obtainable by the usual use of aluminum bottles, for example by cold-flow extrusion and subsequent cold forming steps, and by ensuring that the neck and mouth portion of the bottle have the rigidity and shape that imparts fluidity on the other hand, it fits into automatic production lines. This task requires a special, novel design of the bottle neck and mouthpiece.

The present invention is based on an aluminum bottle having a cylindrical hollow body, a one-piece conical or spherical shoulder, a bottle neck formed from a conical or substantially cylindrical shoulder, and a body at the opposite end to a bottle neck. This has been further developed in accordance with the present invention such that the end of the bottle neck of the aluminum bottle is formed as a mouthpiece having a larger diameter flange at its upper end that is smaller downward.

It is transformed into a recess with a diameter of -3, to which an aluminum bottle closure cap is attached in a form-sealing manner and the remainder of the bottle neck below the recess forms a transitional section.

In a preferred embodiment of the aluminum bottle according to the invention, the transition portion of the mouthpiece, made of reinforced, shaped aluminum and following the recess of the mouthpiece, is truncated to the thin-walled bottle neck.

It is further preferred according to the invention that the larger diameter flange sealing the mouthpiece is provided with a foldable flange having an inside maximum diameter substantially equal to the inside diameter of the bottle neck.

It is also advantageous that the larger diameter flange enclosing the mouth portion and the subsequent recess is formed as a flanged flange which is substantially tangentially connected to the transition region.

Another preferred embodiment of the invention is an aluminum bottle having a cylindrical neck with two recessed frog locks underneath the mouthpiece and movably engaging the aluminum bottle closure repeatedly.

It is also preferred according to the invention that the mouthpiece is made of reinforced material and the indentation (s) are formed by a mechanical impression.

According to a further preferred embodiment of the aluminum bottle according to the invention, the mouthpiece is made of reinforced material and the recess is formed by chip separation machining.

According to a further preferred embodiment of the aluminum bottle according to the invention, the bottle neck has a flat wall which allows it to be formed inwards by a single cold-flow extrusion process.

It is also preferred according to the invention that the mouth portion is formed from a single longitudinally extending flange flange and comprises a recess formed by injection of a flange flange and by recesses or diametrically opposed recesses formed by indentation or drilling.

It is also preferred according to the invention that the mouthpiece, together with the recesses, consists of an additionally extruded sleeve made of metal or plastic.

It is further preferred according to the invention that the bottle neck has a section at its upper end which has a smaller diameter in which the extruded sleeve rests and which has a curved rim.

V · • · fc and shoulder-like abutment are axially movable and at least one groove and rib extending therein are pivotal.

It is also preferred according to the invention that the bottle base consists of a round, inwardly fluted, flanged topsheet which is rigidly connected to the cylindrical body by its folded flange.

Finally, according to the invention, it is advantageous for the bottle neck to have a smaller diameter portion on its upper part and a tooth which is pressed against a rotatably and shoulder-like stop and an axially fixed mouthpiece.

The aluminum bottle of the present invention is very easy to fill and is subsequently stored and reused by customers as a reusable bottle instead of being discarded.

Similarly to glass bottles, the end of the bottle from the neck of the bottle, i.e. the mouthpiece, can be shaped so that the cap (beer cap) can be flanged into a stronger recess following an annular rib having a larger diameter. In order to provide the necessary stability of the mouthpiece, the mouthpiece must be formed of a thick-walled material by a suitable forming process or formed from an additional, separate part. The shape of the aluminum bottle also takes into account the conditions for serial production of cold-flowing extrusion.

The invention will now be described in more detail with the help of the drawing, in which some embodiments of the proposed aluminum bottle are shown. In the drawing it is

Figure 1 is a side elevational view / half section of an embodiment of an aluminum bottle according to the invention with a reinforced mouth portion and a flared cap,

Figure 2 is a side side view / half sectional view of the upper part of the embodiment having a curved flange, without the pressed-on cap,

Figure 3 is a side side view / half sectional view of the upper portion of the embodiment having a foldable flange, without the pressed cap,

Figure 4 is a side elevational view / half sectional view of the upper part of a deep-drawn reinforced mouth aluminum bottle.

Figure 5 is a side elevation / side sectional view of an embodiment of an aluminum bottle of the present invention that provides multiple sealing capabilities, wherein the aluminum bottle has both a flanged cap and • ·

-5 can be locked with a frog lock, of which the figure shows the frog lock,

Figure 6 shows a detail of the aluminum bottle of Figure 5 with a flanged cap instead of a frog lock.

Fig. 7 shows a combined embodiment with a reinforced mouthpiece in which the recesses are formed by an impression and the upper recesses are made by deep drawing;

Fig. 8 shows a detail of an embodiment similar to Fig. 7, in which the upper recess is made by insertion and the inside surface of the bottle neck is planar,

Figure 9 is a side view / half sectional view of a detail of a bottle neck embodiment with a foldable flange that provides a combined closure capability;

Figure 10 is a side view / half section of a detail of a bottle neck embodiment with a curved flange that provides a combined closure capability,

Figure 11 is a side elevational view / side sectional view of a detail of a combined embodiment having a long-folded and flanged bottle neck and a deep-drawn flange pressed into the outer folded flange and provided with movable bearings for the frog lock clamp.

Figure 12 is a side view / half sectional view of a further two-piece embodiment with a separate mouthpiece mounted and

Fig. 13 is a side view / side section of a further three-piece embodiment with a separate bottle bottom and a pressed, serrated mouthpiece fastened to the bottle flange.

The preferred embodiment of the aluminum bottle according to the invention shown in Figure 1 has a cylindrical bottle body 1 which is closed at the bottom by a bottom 4 and passes through a truncated conical shoulder 2 into a bottle neck 3 where the transitions of each section are rounded. As shown in Fig. 5, the shoulder 2 may also be spherical in shape, while the bottle neck 3 is substantially cylindrical.

The upper end of the bottle neck 3, i.e. the outer one with respect to the aluminum bottle, has a mouthpiece 5 formed by a larger diameter flange 6, a smaller diameter recess 7 and a transition section 9 leading to the remainder of the bottle neck 3 and thus DIN 6094. · · · · · ♦ 1 • · · · · · · · · · ··· *

Conforms to the requirements of the German Standard No. 6 for the neck of glass bottles. The flanged cap 8 according to DIN 6099 provides a fluid-tight, sealed seal around the flange 6 around the flange.

Figure 4 illustrates an embodiment having a reinforced wall and a suitable configuration.

Figure 2 shows an embodiment in which the mouthpiece 5 is of substantially the same wall thickness as the entire bottle neck 3 and the flange 6 is formed by a curved flange 11 which extends tangentially to the remaining transition portion 9 of the bottle neck 3. The remaining transitional portion 9 of the bottle neck 3 is formed by proper shaping of the wall of the bottle neck 3. The geometrical design of the flanged flange 11 provides the necessary mechanical stability of the mouthpiece 5.

Fig. 3 shows an embodiment similar to that shown in Fig. 2, except that the flange 6 of the mouthpiece 5 is not a flanged flange 11 but a flanged flange 10 having a maximum inside diameter substantially equal to the inside diameter of the bottle neck 3.

As shown in Figures 5 and 6, to combine the advantages of sealing with a flanged cap 8 (i.e. automatic sealing during filling) and advantages of sealing with a frog seal (resealability), the bottle neck 3 having a substantially cylindrical upper region, preferably two provided with recesses 12 extending opposite to each other and extending through the ends 25 of the wire clip of the frog lock 13.

When the aluminum bottle is sealed with a frog lock 13, this variation is shown in Figure 5, so that the sealing ring 26 of the frog lock 13 is located on the inner flange of the mouthpiece. However, the same aluminum bottle can, as already mentioned, be closed with a flanged cap 8, as shown in Figure 6. This embodiment provides an important advantage to a beverage manufacturing or filling company that the bottles can be run, filled and sealed with flanged caps 8 on a conventional filling device, and offered to consumers with 13 unlocked or partially fitted frog closures. . Practice has shown that these types of bottles are particularly welcomed by consumers because of their reusability. Thus, the two advantages mentioned above are closely linked. Some of the different technical designs are described in more detail below.

The recesses 12 required for the locking of the frog lock 13 are particularly preferably made by locally pressing the bottle neck 3 so that they protrude towards the inside of the bottle neck 3. That's it. 5 ......

• · · * ♦ ·· · · · · · ···· ······

The mouthpiece may be reinforced with a thicker wall, wherein the flange 6 and the upper recess 7 are formed by deep drawing as shown in Figure 7, or by cutting, insertion, i.e., chip removal processes as shown in Figure 8.

Figures 9 and 10 show two further embodiments in which the reinforcement of the flange 6 is achieved by a flanged flange 10 and a flanged flange 11 respectively. Fig. 11 shows an embodiment of the proposed aluminum bottle with the mouthpiece 5 formed by an elongated curved flange 14 and a deep drawn upper flange 6 so that the recesses 12 formed by the indentation in this curved flange 14 are pressed into the region of the curved flange 14 only. 3 inside the neck of the bottle, however. In the embodiments shown in Figures 8 and 11, these recesses 12 may be formed by drilling instead of indentation.

The special shape of the mouthpiece 5 may also be formed by a separate additionally inserted or extruded sleeve 15 which is formed by a suitable separate process from plastic or metal. This has the advantage that the accuracy, stiffness and stability of the mouthpiece part 5 can be substantially increased at approximately the same manufacturing cost, but this production is easier to control due to the special processes.

In embodiments such as the one shown in Figure 12, the bottle neck 3 has a smaller diameter at its upper portion than its lower portion, in which however one or more grooves 19 are machined in the longitudinal direction. The extruded sleeve 15 forming the mouthpiece 5 also has two smaller sections of larger diameter and a plurality of ribs 20 corresponding to the number of grooves 19 so that it is joined to the bottle neck 3 and abutments 18 and 17 against accidental rotation. is secured.

Fig. 13 shows an embodiment in which the mouthpiece 5 is also provided with a pressed sleeve 15. Here, too, the bottle neck 3 has a smaller diameter section on which a longitudinal tooth 23 is formed. The rotation of the extruded sleeve 15 is prevented by this tooth 23, and its axial sliding is prevented by the shoulder-shaped stop 18 and the recess 24 of the tooth 23 behind which the extruded sleeve 15 is actually fixed on the bottle neck.

Such aluminum bottles are conventionally produced by a cold-flowing extrusion process, whereby the flow direction of the metal during extrusion is usually from the bottom 4 of the bottle to the not completely formed neck 3 of the bottle. The final shape of the bottle neck 3 is usually followed by procedural steps such as cutting, tapering, deep drawing, milling, inserting, etc. is created.

-8 If the flow direction of the metal is reversed, the shape of the bottle neck 3 can be brought to a final shape during the cold-flowing extrusion process, provided, of course, that the cold extrusion die has the proper shape. This is particularly necessary or particularly advantageous if the bottle neck 3 as shown in Fig. 13 is to show a tooth 23 or as shown in Fig. 8 a very thick walled bottle neck 3. In addition, additional forming steps may be omitted, such as the need for tapering. The disadvantage of this process is that the bottle base 4 cannot be formed integrally with the body 1 of the bottle. This problem, however, can be solved, as already mentioned, by sealing the aluminum bottle with a folded-over flap 21 which forms the bottom of the bottle.

Claims (13)

Claims 1. Aluminum bottles for beverages and other liquids having a cylindrical hollow body, a one piece, conical or spherical shoulder formed from the shoulder, a cylindrical neck which is ethically or substantially cylindrical in shape from the shoulder, and having a body covering the body opposite to the bottle neck, the end of the bottle neck (3) is formed as a mouthpiece (5) having a larger diameter flange (6) at its upper end, which is converted downwardly into a smaller diameter recess (7) into which an aluminum bottle closure cap (8) engages 3) the part below the recess (7) forms a transitional section (9). Aluminum bottle according to Claim 1, characterized in that the transition part (9) of the mouthpiece (5) made of reinforced, shaped aluminum and following the recess (7) of the mouthpiece (5) is connected to the thin-walled bottle neck (3). Aluminum bottle according to Claim 1, characterized in that the larger diameter flange (6) which closes the mouthpiece (5) is formed by a foldable flange (10) having an inside maximum diameter substantially equal to the inside diameter of the bottle neck (3). Aluminum bottle according to Claim 1 or 3, characterized in that the larger diameter flange (6) which closes the mouthpiece (5) and the subsequent recess (7) is formed by a curved flange (11) which is connected substantially tangentially to the transition. (9). 5. Aluminum bottle according to one of Claims 1 to 3, characterized in that the bottle neck (3) is cylindrical in shape and has two recesses (12) which are movably housed under the mouthpiece (5) and which are arranged in a diameter relative to each other and which repeatedly seal the aluminum bottle. . Aluminum bottle according to Claim 2 or 5, characterized in that the mouthpiece (5) is made of reinforced material and the recess (7) and the recesses (12) are mechanically impressed. Aluminum bottle according to one of Claims 2 to 5, 6, characterized in that the mouthpiece (5) is made of reinforced material and the recess (7) is formed by chip separation machining. 8. A 2, 5-7. Aluminum bottle according to one of Claims 1 to 3, characterized in that the bottle neck (3) has a flat wall which allows it to be formed inwards by a single cold-flow extrusion process. Aluminum bottle according to Claim 1 or 5, characterized in that the mouthpiece (5) is formed from a single longitudinally extending flange (14) and is formed by an indentation (7) formed by injection and by an indentation or drilling. comprising recessed recesses (12) facing each other. Aluminum bottle according to Claim 1 or 5, characterized in that the mouthpiece (5) comprises, together with the recesses (12), an additional extruded sleeve (15) made of metal or plastic. Aluminum bottle according to Claim 10, characterized in that the bottle neck (3) has a smaller diameter section (16) at its upper end, in which the pressed sleeve (15) rests and which is formed by a curved rim (17) and a shoulder-like stop (17). 18) is axially movable and at least one groove (19) and a rib (20) protruding therein are held in position. 12. Aluminum bottle according to one of Claims 1 to 3, characterized in that the bottle base (4) consists of a round, inwardly hollow flanged lid (21) which is fixedly connected to the cylindrical body (1) by its folded flange (22). Aluminum bottle according to one of Claims 5, 10, 12, characterized in that the bottle neck (3) has a smaller diameter portion and a tooth (23) on which it is rotatable and shoulder-like by means of the tooth (23). and a mouth portion (5) which is fixed in an axially displaceable manner by extraction (24) of the tooth (23).