DE10119821A1 - Packing unit to store film on roll has base component with round cross section permanently connected to support discs fitted at ends, withdrawal slot cut out parallel to longitudinal axis, and radially protruding tear-off edge - Google Patents

Abstract

The packing unit comprises a base component (1) with round cross section to hold and store strip-form rolled up media. The base component is permanently connected to support discs (2) fitted at the ends. The base component may consist of geometrically reinforced paper or cardboard, or plastic. The base component has a withdrawal slot (3) cut out parallel to the longitudinal axis, and a tear-off edge (4) which protrudes radially from the base component and which may be triangular in shape.

Description

The invention relates to a packaging system and its production from geometrical stabilized single-grade material, in particular made of paper or cardboard or plastic, for the storage of coreless or coreless wound rollable films, such as. B. Adhesive Tapes or packaging films made of paper, plastic or metal and for confection kidneys of the same, designed as disposable packaging, which after use as one Unit can be disposed of.

Such packaging and confectioning devices are generally known. Both hitherto known packaging and confectioning devices of the generic type it is polygonal folding boxes, preferably a square or have a triangular cross section and are closed at the end. The well-known solution gene have a movably mounted and connected to the base body closure open up, which gives access to the contents after opening the packaging. With the The wrapped film can be picked up by hand and pulled tangentially from the Film roll are unwound. The web is used to assemble a section of film via a corresponding separating device attached to the longitudinal edge of the packaging pulled by hand and cut to the desired size. Both known packaging and confectioning devices of the type described above the film roll inserted loosely. Axial and radial guidance of the foils is thereby eliminated role. The axial play always leads to tilting of the film roll when at hand have not been pulled centrally to the longitudinal axis of the film roll, which is natural in practice is not to be expected otherwise. Due to the jamming blocks or jams Roll and will only come off when the tension is high, causing the film to unevenly move Film roll is pulled, which already solidifies with plastic material can result and so the separation of a film section is difficult. The radial With previous solutions, play leads to the film roll over the closure flap must be pressed together using the hand that holds the packaging. This creates, depending on the handling, frictional forces that are slightly uniform Prevent pulling out a film sheet.

DE 299 10 433 a solution for storing the film roll is known. In the practical design creates the problem that the geometry chosen here adequate storage is not provided. In addition, the tab shape creates a bearing on three points, which is what the spiral-wound used regularly Cores with an unclean inner edge will cause the film roll to get caught. Of Another disadvantage is that the user first pushes the tabs in before use got to.  

The previously known packaging and confectioning devices have serrated or smooth tear-off edges. In some cases, these are the closure at the open end flap attached. In order to separate the film with this arrangement, the user must over increased pressure the friction between the flap and the film web or Increase the packaging underneath so that the film does not slip. This is because of the flexibility of the mostly unique carton very difficult and leads to unclean Cut edges or uncontrolled tearing of the film. This type is also disadvantageous the resumption of the remaining foil flag for further use because after the foil tab remains under the flap after the separation process. To resume the foil flap is to open the flap, which makes unnecessary handling expenditure arises.

The packaging and assembly equipment known to date has in common that the material chosen for packaging, mostly cardboard, due to the square or triangular cross section. From an environmental perspective alone to score this is disadvantageous. Because the core of a film roll for manufacturing reasons because of the high winding speeds must have a minimum thickness Use of raw materials, only on the outer packaging of the packaging and assembly directions, optimized. The packaged good, the film, has opened up wrapped condition a circular cross-section. It follows that if there is a deviation packaged inefficiently by this geometric shape and thus raw materials and those for the Manufacturing required energies are wasted. A comparison for what is needed Packaging material depending on the cross-sectional geometry of the outer packaging (with a constant length of the film roll) illustrates this fact:

Table 1

Table 1 shows that the frequently used square cross-section regularly 27% requires more packaging material than the circular cross-section.

Packaging and confectioning devices, which are designed in the form of folding boxes have a further disadvantage in handling. This fold Boxes are sealed on the front by means of glued cardboard. This creates an indifferent surface and this type of packaging is suitable not to set up the packaging and assembly equipment on the front. In addition, the focus of this version is due to the lack of centering  the film roll not through the longitudinal axis of the packaging and packaging device. Setting up this packaging and packaging equipment z. B. at work Vertical orientation of the longitudinal axis is therefore not possible, but would be desirable.

The present invention is based on the tasks of packaging and con Fectioning device of the generic type so that

ECOLOGY

• - less material is used,
• - the variety purity is maintained,

COSTS

• - the logistics and transport costs are reduced,
• - The packaging at the production location of the film roll in a parallel manufacturing process can be made

HANDLING

• - The tilting of the film roll is prevented
• - a uniform and clean cut is possible,
• - handling becomes easier,
• - the ergonomics of the hand are taken into account and
• - The resumption of the film web is facilitated.

This multidimensional task is solved according to the invention in such a way that the base body ( 1 ) of the packaging and confectioning device is executed in a circular cross-section and unmixed bearing disks ( 2 ) are firmly attached to the front ends, as outlined in FIG. 1. This ensures the best possible ecological efficiency. The circular cross-section leads to a higher packing density when inserted in the selected packaging for the purpose of transport from the place of manufacture to the point of sale and thus to lower logistics costs. The circular shape is also advantageous when inserting the packaging and assembly equipment on the shelves at the point of sale and also leads to less effort there.

The circular base body ( 1 ) is formed from geometrically reinforced flat web-shaped starting material ( Fig. 11, Ia). Such materials are known and available. For example, corrugated cardboard can be mentioned in one embodiment. The invention also extends to multi-layer building materials, such as. B. Sandwich boards and plastics. The design in corrugated cardboard is advantageous because of the associated stability or weight advantage compared to single-layer paper or cardboard. The corrugated cardboard that is corrugated on one side is preferred because of its rollability, in such a way that the corrugated side is oriented inwards to avoid tension. The smooth, in particular the outside of the base body ( 1 ), which is made of corrugated cardboard or corresponding material, is suitable for printing or laminating for labeling the packaging and confectioning device.

The bearing disks ( 2 ) arranged at the end are firmly connected to the base body ( 1 ) after assembly of the packaging and assembly device and thereby stabilize it. The permanent connection of the base body ( 1 ) and the bearing washers ( 2 ) increases the stability and stability of the packaging and assembly device. The design of the bearing disks ( 2 ), which is planar on the outside, means that the packaging and confectioning device can be placed upright without tipping over on its own.

The bearing disks ( 2 ) serve to receive and support the film roll ( 5 ) and ensure their guidance axially and radially. By centering the film roll ( 5 ) by means of bearing washers ben ( 2 ), the diameter of the base body can become very small, so that only a small radial clearance v (from FIG. 2) between base body ( 1 ) and film roll ( 4 ) is required , This has a favorable effect on the consumption of packaging material.

The bearing disks ( 2 ) used in the invention also enable the film material to be pulled out uniformly. The remaining friction between the bearing disc ( 2 ) and the film roll ( 4 ) prevents the film flag ( 7 ) from sliding back. As a result, the foil lug ( 7 ) protruding from the base body ( 1 ) can easily be picked up again when used again.

In an embodiment of the invention, a straight ( FIG. 10a) or spiral ( FIG. 10b) tear-off edge ( 4 ) is provided, which is rotated by the angle α relative to the removal slot ( 3 ) and attached parallel to the longitudinal axis of the base body ( 1 ). The angle α (in Fig. 1) is expediently between 20 ° and 340 °, so that on the one hand the ergonomics of the hand and wrist is taken into account and on the other hand the foil tab ( 7 ) which extends out of the removal slot is sufficiently long for easy resumption. The angle α depends largely on the diameter of the base body ( 1 ). With average diameters of 40-60 mm, an angle α of 50 ° to 90 ° or 270 ° to 310 ° has proven to be advantageous.

In the application of the invention described here to prefabricated web-like unrollable media, such as garbage or ice packs, the length of which is determined by a recurring perforation in the course of the film, the tear-off edge ( 4 ) is omitted without replacement. The film is torn off in this case by braking the film roll ( 5 ) with increased hand pressure on the base body ( 1 ) and thereby building up the tensile force required for tearing off.

In the further embodiment of the invention, the closing of the packaging and confectioning device is solved by a sealing strip ( 8 b) attached to the open end of the wound film ( 6 ), for. B. made of paper, which is partly wound onto the film roll ( 7 ) and looks out from the removal slot ( 3 ) of the base body ( 1 ) in such a way that this part can be placed around the base body ( 1 ) to cover the tear-off edge ( 4 ), as shown in Fig. 3b. The attached sealing strip ( 8 b) is attached in its further course behind the tear-off edge ( 4 ) on the base body ( 1 ) in such a way that the user can easily remove the locking strip ( 8 b) from the base body ( 1 ) before the first use and if the sealing strip ( 8 b) is pulled further, it reaches the actual film ( 6 ). This ensures that, on the one hand, the packaging and assembly device is hygienically closed at the point of sale and, on the other hand, easy opening without risk of injury is guaranteed.

As mentioned above, the packaging system is a unit consisting of the elements base body ( 1 ), bearing washers ( 2 ), film roll ( 5 ) and tear-off edge ( 4 ). It can only be opened by destroying it. After unrolling the entire content, the packaging can be disposed of as a single unit and sent for recycling.

The embodiment in Fig. 1 and Fig. 2 shows the basic structure according to patent claim 1. The front-side bearing disc ( 2 ) is permanently connected to the base body ( 1 ). The removal slot ( 3 ) with the gap dimension s (in FIG. 1) is designed such that s <t, where t is the film thickness.

In one embodiment. Fig. 3a is the base body ( 1 ) in cross section at one end designed spirally with the overlap according to ( 8 a). In Fig. 3b, the version for closing the packaging and confectioning device by means of stripes ( 8 b) is shown.

The design of the tear-off edge ( 4 ) in FIG. 9 shows the triangular shape on the base body ( 1 ) according to claim 6. The tear-off edge ( 4 ) can be both parallel ( FIG. 10a) and spiral ( FIG. 10b) to the removal slot ( 3 ) run according to claim 7 .

The preferred embodiments of the bearing discs (2) in Fig. 4 to Fig. 8.

According to claim 10, the embodiments of bearing discs (2) in Figure 8 have. 4, Fig. 7 and Fig. On bearing pins (9) for receiving the film roll (5).

According to claim 11 5 6 Exemplary embodiments of bearing discs (2) and Fig. Are shown in Fig., In which a bearing bore (10) is provided for receiving the film roll (5).

Embodiments to claim 12, in FIG. 4 and FIG. 5. The collar ( 11 ) enables the bearing disks ( 2 ) to be positioned exactly within the base body ( 1 ) and closes the cutting edge on the end face thereof.

Fig. 7 and Fig. 8 support the claim 13. The bearing washers ( 2 ) are designed in such a way that they run parallel to the central axis on their outer circumference in order to establish the connection to the base body ( 1 ) there. The centrally positioned bearing journal ( 9 ) is designed in the form of a dome in the form of a wave. This version is particularly suitable for the use of recycled cardboard and can be manufactured inexpensively by pressing processes.

According to claim 14, it is also possible to form the connection between the base body ( 1 ) and the bearing plate ( 2 ) such that the outside of the base body ( 1 ) is inserted into the recess of the bearing plate ( 2 ) ( Fig. 8).

The process flow diagram for the production of the packaging and confectioning device according to the invention is outlined in FIG. 11, for which protection is sought in claim 17.

The flow chart is divided into phases, with phases Ia and Ib and phases IIa and IIb each run in parallel. The phases are explained in detail below.

In phase Ia the starting material for the base body ( 1 ) z. B. Corrugated cardboard unwound from a roll (continuous process) and cut to length and / or lengthwise to the unrolled web to be prepared in phase IIa for the next steps. Depending on the process and material, these preparations can consist, for example, of heating, changing the humidity, printing or laminating, and possibly attaching a tear-off edge ( 4 ) and conclude with the reshaping of the base body ( 1 ) thus prepared for phase III. The shaping indicates the later circular shape of the base body ( 1 ), whereby this is initially designed as V-shaped, open on one side, as shown in FIG. 11, phase III.

In phase Ib, the sheet material is rolled over onto the film roll ( 5 ) in parallel. In phase IIb, the sealing strip ( 8 b) can be attached if necessary.

The film roll is inserted into the still open base body ( 1 ) in phase III, where the processes converge. After insertion, the base body ( 1 ) is brought into its final circular shape.

In phase 4 , the bearing washers ( 2 ) are brought axially up to the preformed base body ( 1 ) in such a way that the film roll ( 5 ) is centered within the base body ( 1 ) with a uniform gap dimension v and a permanent connection between the bearing washer ( 2 ) and base body ( 1 ).

Finally, the finished packaging and packaging equipment becomes Transport inserted in the outer packaging to save space (phase V).

The advantages associated with the invention over the known solutions are:

• - Material savings through the use of geometrically reinforced raw materials and by little play v.
• - Disposal after use as a unit by type purity.
• - Reduction of logistics and transport costs via the processes manufacturing the ver packing, transport, placing on shelves and subsequent disposal by district round geometry and lower packaging volume.
• - Continuous parallel process in the production of film roll ( 5 ) and packaging and assembly equipment and thereby savings in production.
• - Even, easy pulling out of the film without tilting or falling out through the use of bearing washers ( 2 ) and thus a uniform and clean cut of the film.
• - Improved ergonomics thanks to the circular design and completely encapsulated film roll ( 5 ).
• - Simplified inclusion of the foil flag ( 7 ) before the first use by attaching a sealing strip ( 8 b).
• - Easier resumption of the foil flag ( 7 ) for re-use by tear-off edge ( 4 ) offset by angle α.

Claims (17)

1. Packing and confectioning device, consisting of a base body ( 1 ) with a circular cross-section for receiving and storing web-shaped, unrollable media and for assembling the same, characterized in that the base body with the front-mounted bearing discs ( 2 ) is permanently firmly connected , 2. Packing and confectioning device acc. Claim 1, characterized in that the base body ( 1 ) consists of geometrically reinforced paper or cardboard (e.g. corrugated cardboard) or plastic. 3. Packing and confectioning device acc. Claims 1 and 2, characterized in that the base body ( 1 ) has a removal slot ( 3 ) which is embossed parallel to the longitudinal axis. 4. Packing and confectioning device acc. Claim 1, characterized in that the base body ( 1 ) is provided with a tear-off edge ( 4 ). 5. Packing and assembly equipment acc. Claim 4, characterized in that the tear-off edge ( 4 ) protrudes radially from the base body ( 1 ) ( Fig. 9). 6. Packing and confectioning device acc. Claims 4 and 5, characterized in that the tear-off edge ( 4 ) is designed in a triangular shape ( Fig. 9). 7. Packing and assembly equipment acc. Claims 1 to 6, characterized in that the tear-off edge ( 4 ) is rotated by an angle α with respect to the removal slot ( 3 ), arranged in parallel ( Fig. 10a) or in a spiral ( Fig. 10b). 8. Packing and confectioning device acc. Claim 1, characterized in that bearing discs ( 2 ) center the film roll ( 5 ). 9. Packing and assembly device acc. Claims 1 and 8, characterized in that the bearing washers ( 2 ) and the base body ( 1 ) and the tear-off edge ( 4 ) consist of the same raw material (type purity). 10. Packing and confectioning device acc. Claim 8, characterized in that the bearing disc ( 2 ) is provided with a journal ( 9 ) ( Fig. 4 / Fig. 7 / Fig. 8). 11. Packing and assembly device acc. Claim 8, characterized in that the bearing disc ( 2 ) is provided with a bearing bore ( 10 ) ( Fig. 5 / Fig. 6). 12. Packaging and confectioning device according to one or more of the preceding claims, characterized in that the bearing disks ( 2 ) are placed over a collar ( 11 ) on the base body ( 1 ) ( Fig. 4 / Fig. 5). 13. Packaging and confectioning device according to one or more of the preceding claims, characterized in that the bearing journal ( 9 ) of the bearing disc ( 2 ) is designed in wave form ( Fig. 7 / Fig. 8). 14. Packaging and confectioning device according to one or more of the preceding claims, characterized in that the bearing disc ( 2 ) is connected to the base body ( 1 ) via its outside ( FIG. 8). 15. Packing and confectioning device acc. Claim 1, characterized in that the free ends ( 8 a in Fig. 3a) of the base body overlap spirally. 16. Packing and confectioning device acc. Claim 1, characterized in that a sealing strip ( 8 b in Fig. 3b) is attached to the loose end of the film. 17. Packaging and confectioning device according to one or more of the preceding claims, characterized in that the starting material for the base body ( 1 ) is executed in rolled-up webs (Ia in Fig. 11).