CUTTING PIECE FOR PRODUCING A BOTTLE-LIKE OBJECT, BOTTLE-LIKE OBJECT AND METHOD FOR PRODUCING A BOTTLE-LIKE OBJECT

Description

[0001] The present invention relates to a blank made of paper or cardboard for producing a bottle-like article, comprising a tab portion for forming a bottle neck and a body portion for forming a bottle body, wherein the tab portion is arranged at one end of the body portion. The invention also relates to a bottle-like article, a bottle, and a method for producing a bottle-like article.

[0002] A wide variety of paper or cardboard blanks for producing bottle-like objects of the type mentioned above are known. For example, CA 210195 A1 describes a cardboard bottle whose bottle body and bottle neck are made from a single blank. Furthermore, a separately formed base element is connected to the bottle body. The same applies to DE 569 275 C, US 1 310 117 B1, and US 2 267 993 B1. JP 3 240041 U discloses a paper or cardboard blank for producing a bottle-like object, which comprises a sequence of individual, differently formed neck tabs for forming a bottle neck. US 1 100 448 A discloses a blank for producing a paper bottle, wherein the blank has a plurality of identically formed neck tabs for forming a bottle neck.

[0003] A disadvantage of these known blanks, however, is that automated, machine-based production of such bottles is only possible with considerable mechanical effort due to the design of the known blanks, particularly the neck tabs required to form the bottle neck. Furthermore, carton bottles formed from these known blanks often develop leaks in the bottle neck area.

[0004] It is therefore an object of the present invention to provide a blank made of paper or cardboard for producing a bottle-like object, a bottle-like object, a bottle and a method for producing a bottle-like object, which ensure a more cost-effective production of the bottle-like object or the bottle and an improved tightness of the bottle-like object or the bottle.

[0005] These objects are achieved by means of a blank having the features of claim 1, a bottle-like object having the features of claim 9, a method for producing a bottle-like object having the features of claim 10, and a bottle having the features of claim 13. Advantageous embodiments of the container according to the invention and the blank according to the invention are described in the respective subclaims. Advantageous embodiments of the blank are to be regarded as advantageous embodiments of the bottle-like object, the described bottle, and the method for producing a bottle-like object, and vice versa.

[0006] A first aspect of the invention relates to a blank made of paper or cardboard for producing a bottle-like article, comprising a tab portion for forming a bottle neck and a body portion for forming a bottle body. The tab portion is arranged at one end of the body portion. Furthermore, the tab portion comprises a sequence of a group of first neck tabs and a group of second neck tabs, wherein the first and second neck tabs are differently configured such that at least one region of the respective first neck tab rests on at least one corresponding adhesive and / or bonding portion of the respective second neck tab when the blank is assembled.A sequence of a group of first neck tabs and a group of second neck tabs is understood to mean that a first group of identically designed first neck tabs is initially provided, and then a second group of second neck tabs follows this first group of first neck tabs to form the tab section. The second neck tabs are designed differently than the first neck tabs. This means that there is no alternating sequence of first and second neck tabs. The succession of differently designed neck tabs occurs within the tab section in such a way that initially identically designed first neck tabs are followed by a group of identically designed second neck tabs, wherein the first and second neck tabs are shaped differently. Furthermore, the tab section can be formed integrally with the body section.The tab section also has an equal or unequal number of first and second neck tabs. The group of first neck tabs comprises at least two first neck tabs and the group of second neck tabs at least two second neck tabs. The inventive design of the blank makes it possible to produce a bottle-like object from paper or cardboard in a simple manner, in particular by winding or rolling the blank. In addition, the overlap of the first neck tabs with the second neck tabs and here in particular with the corresponding adhesive and / or bonding sections of the respective second neck tabs results in an intimate and tight bond to form the bottle neck and the bottle body in the assembled state of the blank.The "adhesive and / or bonded section of the respective second neck flap" is understood to mean at least one thickening of the second neck flap in the assembled or wound state of the blank, as explained in more detail later. The same applies to the "area of the respective first neck flap."

[0007] In further advantageous embodiments, a length A of the second neck tab is greater than or equal to a length B of the first neck tab, wherein the lengths A and B are measured starting from the body portion. This ensures that the second neck tabs have a sufficiently large support surface over their length A for the first neck tabs along their length B. This contributes to the tightness of the bottle-like object produced from the blank in the region of the bottle neck thus formed.

[0008] In further advantageous embodiments of the blank according to the invention, the first neck tab has a tab body which, in a region closer to the body section, is wider transversely to its longitudinal extent than at a tab end facing away from the body section and / or the second neck tab has a tab body, wherein the tab body is wider transversely to its longitudinal extent in a region closer to the body section than at a tab end facing away from the body section. These possible embodiments of the first and second neck tabs ensure that there is a significant overlap of the first and second neck tabs in the assembled state of the blank, in particular in the region of a transition between the bottle body and the bottle neck.

[0009] Furthermore, it is possible for at least one crease line to be formed in the tab body of the first neck tab in the longitudinal extension of the first neck tab and / or for at least one crease line to be formed in the tab body of the second neck tab in the longitudinal extension of the second neck tab. The crease lines advantageously contribute to the stability of the respective neck tab. Furthermore, they contribute to better formability of the individual tabs. In addition, it is possible for the crease line, which is formed in a wide region of the tab body of the second neck tab close to the body section, to limit the expansion of the adhesive and / or bonding section in the second neck tab. This results in improved formability of the tab body of the second neck tab in the region of the adhesive and / or bonding section.

[0010] In further advantageous embodiments of the blank according to the invention, a length of the body portion in the direction of the tab portion and in the region of the first neck tabs is greater than or equal to a length of the body portion in the direction of the tab portion and in the region of the second neck tabs. In this case, the body portion can be stepped in a transition region between the first group of first neck tabs and the group of second neck tabs. Such a configuration ensures that when the blank is rolled up or wound up, the aforementioned regions of the body portion are intimately covered. This contributes to the improved tightness of the bottle-like object produced from the blank.

[0011] A second aspect of the invention relates to a bottle-like article made of paper or cardboard, wherein the article is produced from a blank according to the first aspect of the invention. The bottle-like article according to the invention is simple and cost-effective to produce and is characterized in particular by its improved tightness.

[0012] Further advantages and embodiments of the bottle-like article according to the second aspect of the invention can be found in the description of the first aspect of the invention.

[0013] A third aspect of the invention relates to a method for producing a bottle-like article from paper or cardboard, wherein the method comprises at least the following steps: providing a blank according to the first aspect of the invention; wrapping the blank at least twice around a bottle-like shaped body and gluing and / or sealing superimposed ends of the rolled-up blank to form a bottle body; and forming a bottle neck by placing first and second neck flaps of the blank against one another and gluing and / or sealing the first and second neck flaps together. An adhesive and / or sealing medium can be applied at least partially to the first neck flaps and / or an adhesive and / or bonded portion of the second neck flap. The method according to the invention ensures simple and therefore cost-effective production of a bottle-like article.In addition, the design of the blank according to the invention ensures improved tightness of the shaped bottle-like article.

[0014] The at least two-fold winding of the blank possesses independent inventive content. This particularly applies to blanks in which the first and second neck tabs are not different but are designed the same or identically. The at least two-fold winding of the blank according to the invention for producing a bottle-like article made of paper or cardboard can be implemented easily and cost-effectively by machine. Furthermore, it contributes to improved tightness of the bottle-like article.

[0015] In a further advantageous embodiment of the method according to the invention, a base element for closing the bottle-like object at the bottom of the bottle body and / or at least one closure element for releasably closing the bottle-like object at the bottle neck and / or at least one spout at the bottle neck and / or a bag-like element for holding a liquid within the bottle body is arranged before or after the formation of the bottle neck. According to the invention, the formed bottle-like object can thus be processed into a usable end product, namely a bottle. Advantageously, a variety of different bottle designs, particularly with regard to their shape, size, and features, can also be produced using the method according to the invention.

[0016] Further advantages and embodiments of the method according to the invention according to the third aspect of the invention can be found in the description of the first and second aspects of the invention.

[0017] A fourth aspect of the invention relates to a bottle comprising a bottle-like object according to the second aspect of the invention, wherein the bottle has at least one base element for closing the bottle-like object at the base and / or at least one closure element for releasably closing the bottle-like object at the bottle neck and / or at least one spout at the bottle neck and / or a bag-like element for receiving a liquid within the bottle body. Such a bottle is simple and cost-effective to produce and, in particular, has improved tightness.

[0018] Further advantages and embodiments of the bottle according to the fourth aspect of the invention can be found in the description of the first, second and third aspects of the invention.

[0019] Further features of the invention emerge from the claims, the exemplary embodiments, and the drawings. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the exemplary embodiments, can be used not only in the respective combinations specified, but also in other combinations without departing from the scope of the invention. Figure 1 shows a schematic representation of a blank according to the invention according to a first embodiment; Figures 2a - 2d show a schematic representation of several method steps for producing a bottle-like article from the blank according to the invention according to Figur 1 ; Figure 3 an enlarged schematic representation of the blank according to the invention according to Figur 1 manufactured bottle-like article; Figure 4 shows a schematic representation of a blank according to the invention according to a second embodiment; Figure 5 shows a schematic representation of a blank according to the invention according to Fig. 1 manufactured bottle-like article; and Figure 6 is a schematic representation of a bottom element of the bottle-like article according to Fig. 5 .

[0020] In the following descriptions of the figures, identical features of the various embodiments are designated with the same reference numerals.

[0021] The Figur 1 shows a schematic representation of a blank 10 according to a first embodiment. The blank 10 is made of paper or cardboard and serves to produce a bottle-like object 20 (see also Fig. 5 ). Typically, cardboard grades with a grammage between 200 and 600 g / m 2 , particularly between 250 and 350 g / m 2 , are used. The thickness of the cardboard used can be 0.5 mm ± 0.2 mm. Other grammages and thicknesses are also conceivable.

[0022] The blank 10 comprises a tab section 12 for forming a bottle neck 18 (see Fig. 5 ) and a body section 14 for forming a bottle body 16 (compare Fig. 5 ). It can be seen that the tab section 12 is arranged at one end of the body section 14 and is connected to it in one piece. The tab section 12 comprises a sequence of a group of first neck tabs 22 and a group of second neck tabs 24. It is clear that the first and second neck tabs 22, 24 are designed differently. The different design of the first and second neck tabs 22, 24 serves to ensure that at least one area of the respective first neck tab 22 in an assembled state of the blank 10 (see also Fig. 2D ) rests on at least one corresponding adhesive and / or bonding section of the respective second neck tab 24.

[0023] In the illustrated embodiment, the tab section 12 comprises an equal number of first and second neck tabs 22, 24. However, it is also possible to use different numbers of different neck tabs. The first and second neck tabs 22, 24 are arranged in groups and one behind the other.

[0024] Furthermore, it can be seen that a length A of the second neck flap 24 is greater than a length B of the first neck flap 22. The lengths A and B are measured starting from the body section 14. When the blank 10 is wrapped (see also Fig. 2 ) this can result in complete coverage of the body section 14 below the second neck tabs by the area of the body section 14 below the first neck tabs.

[0025] Furthermore, it can be seen that the first neck tabs 22 each have a tab body 30 which, in a region closer to the body section 14, is wider transversely to its longitudinal extent than a tab end 32 facing away from the body section 14. The same applies to the second neck tabs 24. Here, too, the second neck tabs 24 are each provided with a tab body 34 which, in a region closer to the body section 14, is wider transversely to its longitudinal extent than at a tab end 36 facing away from the body section 14. The thickened portions in the first and second neck tabs 22, 24 serve to completely cover the first and second neck tabs 22, 24 with one another in these regions. Furthermore, in the illustrated embodiment, the tab bodies 34 of the second neck tabs 24 each have opposing adhesive and / or bonding sections 26.These adhesive and / or bonding sections 26 are each delimited by a crease line 44 formed in the wider region of the tab body 34 and close to the body portion 14. Furthermore, it can be seen that additional crease lines 42, 46 are formed in the tab bodies 30 and 34. These crease lines 42, 44, 46 serve, on the one hand, to increase the stability of the neck tabs 22, 24 and, on the other hand, to facilitate the formability of these tabs 22, 24.

[0026] Furthermore, it is clear that in the illustrated embodiment, a length of the body portion 14 in the direction of the tab portion 12 and in the region of the first neck tabs 22 is greater than a length of the body portion 14 in the direction of the tab portion 12 in the region of the second neck tabs 24. A transition region 28 is formed between the aforementioned regions of the body portion 14, which is generally step-like. Accordingly, a step 28 is formed in the transition region between the first group of first neck tabs 22 and the group of second neck tabs 24.

[0027] The Fig. 2a bis 2d show schematic representations of several process steps for producing the bottle-like article 20 from the blank 10 according to Fig. 1 . The blank 10 is shown in these illustrations without creasing lines. In Fig. 2a the blank 10 is shown in a non-rolled or rolled up form. The beginning of the winding of the blank 10 is shown in Fig. 2b shown. It can be seen that one end of the blank 10 is wound or rolled in a circle towards the opposite end of the blank 10. In Fig. 2c A first winding of the blank 10 is completed. It can be seen that the group of second neck tabs 24 is now completely rolled up and the initially loose end of the blank 10 now rests on the body section 14. A second winding then achieves the state shown in Fig. 2d is shown. Here, the blank 10 has been completely wound up. The ends of the blank 10 are at least partially glued or sealed to one another, particularly in the region of the body section 14. In particular, the gluing or sealing takes place along the forming longitudinal seam of the rolled-up blank 10. The first neck tabs 22 rest on the first neck tabs 24. In particular, they rest on the corresponding adhesive and / or composite tabs 26. The gluing or sealing of the first and second neck tabs 22, 24 to one another can be achieved by applying an adhesive or applying a sealing medium to the adhesive and / or composite sections 26 or to the corresponding side of the first neck tab 22 resting on the second neck tab 24.It can be seen that the double wrapping of the blank 10 shown here results in a bottle body 16 and a bottle neck 18 of the bottle-like object 20. Furthermore, it can be seen that the body portion 14 has a flanged tab 48 below the first neck tab 22 and opposite the neck tabs 22. The flanged tab 48 serves to secure a base element.

[0028] Fig. 3 shows an enlarged schematic representation of the blank 10 according to Fig. 1 manufactured bottle-like object. It can be seen how the first neck tabs 22 rest on the respective second neck tabs 24 and are connected thereto. In particular, the first neck tabs 22 rest at least partially on the adhesive and / or bonding sections 26 of the second neck tabs 24. The blank 10 is again shown here without creasing lines.

[0029] Fig. 4 shows a schematic representation of a blank 10 according to a second embodiment. It can be seen that the first and second neck tabs 22, 24 have a different shape than in the first embodiment. Thus, the respective tab bodies 30 are also wider in the areas closer to the body section 14 than at the corresponding tab ends 32. However, additional crease lines 40 are formed in these areas. These crease lines 40 also serve, on the one hand, to increase the stability of the first neck tabs 22 in the aforementioned areas and to improve formability. The crease lines 44, 46, which are formed in the respective tab bodies 34 of the second neck tabs 24, also have a different arrangement and a different design than the corresponding crease lines of the first embodiment. However, here too, opposite adhesive and / or bonding sections 26 are formed by the crease lines 44.The blank 10 according to the second embodiment again has a flanged tab 48. Regarding the further features of the blank 10 according to the second embodiment, we refer to the description of the blank 10 according to the first embodiment.

[0030] Fig. 5 shows a schematic representation of a blank made according to Fig. 1 manufactured bottle-like object 20. In the illustration, the creasing lines of the blank 10 have not been taken into account. It can be seen that after forming the blank 10, the body section 14 has been formed into the bottle body 16. The bottle body 16 is followed by the bottle neck 18, which was formed from the tab section 12. It can be seen that the first and second neck tabs 22, 24 have been connected to one another and, in particular, glued and pressed. At the end opposite the bottle neck 18, the bottle-like object 20 has a base element 50. The base element 50 is in Fig. 6 shown schematically. The round design of the base element 50 and the adhesive tabs 52 arranged around the circumference of the base element 50 can be seen.

[0031] Furthermore, it is possible for further wrappings to be made around the bottle-like object 20. These can be, for example, stiffening and / or reinforcing elements, in particular paper or cardboard strips, which are wrapped in the region of the bottle neck 18 and / or the bottle body 16. Furthermore, it is possible for the blank 10 and consequently also the bottle-like object 20 produced therefrom to be at least partially coated. This can be a protective coating that, for example, has a water- and / or grease-repellent effect. The outer side of the bottle-like object 20 can also be at least partially printed and / or adhesively coated. Other design variants are also possible.Furthermore, before or after the formation of the bottle neck 18, a base element 50 for closing the bottle-like object 20 at the bottom on the bottle body 16 and / or at least one closure element for releasably closing the bottle-like object 20 on the bottle neck 18 and / or at least one spout on the bottle neck 18 and / or a bag-like element for receiving a liquid within the bottle body 16 can be arranged.

Claims

1. A blank (10) of paper or cardboard for producing a bottle-like article (20), including a flap section (12) for forming a bottleneck (18) and a body section (14) for forming a bottle body (16), wherein the flap section (12) is arranged at an end of the body section (14), characterized in that the flap section (12) includes a sequence of a group of first neck flaps (22) and a group of second neck flaps (24), wherein the first and the second neck flaps (22, 24) are differently formed such that at least one area of the respective first neck flap (22) abuts on at least one corresponding adhesive and / or compound section (26) of the respective second neck flap (24) in mounted state of the blank (10), and the flap section (12) includes an equal or unequal number of first and second neck flaps (22, 24), wherein the group of the first neck flaps (22) includes at least two first neck flaps (22) and the group of the second neck flaps (24) includes at least two second neck flaps (24).

2. The blank according to claim 1, characterized in that the flap section (12) is formed integrally with the body section (14).

3. The blank according to any one of the preceding claims, characterized in that a length (A) of the second neck flap (24) is greater than or equal to a length (B) of the first neck flap (22), wherein the lengths (A), (B) are measured starting from the body section (14).

4. The blank according to any one of the preceding claims, characterized in that the first neck flap (22) comprises a flap body (30), wherein the flap body (30) is formed wider transversely to its longitudinal extension in an area, which is closer to the body section (14), than at a flap end (32) facing away from the body section (14), and / or that the second neck flap (24) comprises a flap body (34), wherein the flap body (34) is formed wider transversely to its longitudinal extension in an area, which is closer to the body section (14), than at a flap end (36) facing away from the body section (14).

5. The blank according to any one of the preceding claims, characterized in that at least one score line (40, 42) is formed in longitudinal extension of the first neck flap (22) in the flap body (30) of the first neck flap (22) and / or that at least one score line (44, 46) is formed in longitudinal extension of the second neck flap (24) in the flap body (34) of the second neck flap (24).

6. The blank according to claim 5, characterized in that the score line (44), which is formed in a wider area of the flap body (34) of the second neck flap (24) close to the body section (14), delimits an extension of the adhesive and / or compound section (26) in the second neck flap (24).

7. The blank according to any one of the preceding claims, characterized in that a length of the body section (14) in the direction of the flap section (12) and in the area of the first neck flaps (22) is greater than or equal to a length of the body section (14) in the direction of the flap section (12) and in the area of the second neck flaps (24).

8. The blank according to claim 7, characterized in that the body section (14) is formed stepped in a transition area (28) between the first group of the first neck flaps (22) and the group of second neck flaps (24).

9. A bottle-like article (20) of paper or cardboard, characterized in that the article (20) is produced from a blank (10) according to any one of claims 1 to 8.

10. A method for producing a bottle-like article (20) of paper or cardboard, wherein the method includes at least the following steps: - providing a blank (10) according to any one of claims 1 to 8; - winding the blank (10) at least two times around a bottle-like mold and adhering and / or sealing ends of the rolled-up blank (10) abutting on each other for forming a bottle body (16); and - forming a bottleneck (18) by means of abutting first and second neck flaps (22, 24) of the blank (10) on each other and adhering and / or sealing the first and second neck flaps (22, 24) to each other.

11. The method according to claim 10, characterized in that an adhesive and / or a sealing medium is at least partially applied to the first neck flaps (22) and / or an adhesive and / or compound section (26) of the second neck flap (24).

12. The method according to claim 10 or 11, characterized in that before or after forming the bottleneck (18), a bottom element (50) for bottom-side closure of the bottle-like article (20) is arranged at the bottle body (16) and / or at least one closure element for detachably closing the bottle-like article (20) is arranged at the bottleneck (18) and / or at least one spout is arranged at the bottleneck (18) and / or a bag-like element for receiving a liquid is arranged within the bottle body (16).

13. A bottle including a bottle-like article (20) according to claim 9, characterized in that the bottle comprises at least one bottom element (50) for bottom-side closure of the bottle-like article (20) and / or at least one closure element for detachably closing the bottle-like article (20) at the bottleneck (18) and / or at least one spout at the bottleneck (18) and / or a bag-like element for receiving a liquid within the bottle body (16).