EP0158324B1 - Yarn package carrier - Google Patents

Abstract

1. Package carrier for the handling of threads or yarns, comprising two end rings and a plurality of elements (9-12, 14, 11', 11", 12', 12") constituting intermediate rings and forming a perforate annular sleeve, with said elements being connected in the axial direcion by spacer element ( (1-8 ; 3', 5', 6', 8') arranged in the annular sleeve and formed as ribs, wherein at least those elements (9-12, 14, 11', 11", 12', 12") forming the intermediate rings lie with their outer peripheral surfaces always within the annular sleeve surface (19, 18), characterized in that the annular sleeve surface (19, 18), viewed in the axial direction, has sections of larger and smaller diameter which follow one another successively, and the elements which form spacer elements at least between such intermediate rings and which overlap each other in the radial direction are substantially in alignement in the axial direction.

Description

The invention relates to a winding support for the treatment of threads or yarns, with two end rings and a plurality of intermediate rings forming elements or spiral windings forming a perforated sheath ring, which are connected in the axial direction by spacer elements arranged in the sheath ring, web-like spacer elements, at least which the intermediate rings or Elements forming spiral turns always lie in the outer surface with their outer peripheral surface.

Winding carriers of the type described above are widely used and have proven their worth. Depending on the application, different requirements are placed on such winding carriers with regard to the space available for the winding material. During the treatment of the material to be wound on the winding carrier, the material to be wound exerts a force on the winding carrier, for example by a shrinking process of the material to be wound, and the structure of the prior art winding carriers is designed such that they can yield to such a force that occurs. At the same time, however, such winding carriers must have as many and large openings as possible in the deformed state so that the dyeing liquor for coloring the winding material can penetrate the winding carrier flowing out of the dye spear from the inside to the outside as freely as possible.

Since the winding material behaves differently during the treatment on the winding carrier depending on the type of winding material and the treatment, winding carriers of the most varied constructions have become known which can be deformed in the axial direction or in the radial direction or in both directions to compensate for the narrowing winding material are. As an example of this, reference is made to DE-AS-2 363 250. However, there is a risk that threads of the material to be wound will become jammed if the winding support is deformed, even when it is being wound. In order to prevent this, such a winding carrier is always used wrapped with paper in practice.

Furthermore, DE-PS-2 506 512 has disclosed a winding carrier which does not belong to the type defined in more detail above, but which has a winding body with bulges, between which there are depressions and which should be at least axially deformable. With this winding support, it is possible that when the winding material shrinks due to a wet treatment or due to a heat treatment, this winding material can initially sit in the recesses in the radial direction, so that space is gained without deformation of the winding support. However, if there is simultaneous axial deformation of this winding carrier, on the one hand the introduction of the winding material into the recesses is promoted and on the other hand the winding material is clamped in the recesses. At the same time, the perforation, which for reasons of stability makes up only a small proportion of the total surface area in the sum of its opening cross sections, impedes the passage of the dye liquor.

DE-A-2 631 793 discloses a winding tube whose entire outer surface is essentially closed and has only sieve-like openings. There are also annular bead-like elevations at a distance from one another which are connected to one another and to regions of the lateral surface which have no such elevations. The latter area of the jacket is curved outwards in a barrel shape. As a result of this jacket structure, a radially outward deformation of the jacket surface occurs in the event of an axial shortening, as a result of which the winding material is prevented from being jammed. However, the total area of the openings, which is necessarily small in this construction, does not allow a satisfactory passage of the dye liquor. In addition, an outward deformation is undesirable in the case of winding material entering through the treatment.

The invention is therefore based on the object of proposing a winding carrier of the type described at the outset, which is a stable carrier for winding the untreated winding material, has the largest possible openings for the dyeing liquor and in which the threads of the winding material do not become jammed.

This object is achieved according to the invention in a winding support of the type described in the introduction in that the lateral surface, as seen in the axial direction, has sections of larger and smaller diameters which continuously merge into one another and the spacing elements at least between such elements which form intermediate rings or spiral turns which overlap in the radial direction, in the axial direction Direction essentially aligned. It has been shown that the material to be wound can easily be wound over the larger diameters. Since the described structure of the winding support on the one hand represents a stable core and on the other hand does not provide any appreciable resistance due to the only narrow, rounded end faces of the individual elements of the dyeing liquor, the desired properties of sufficient stability and low resistance for the dyeing liquor have also been achieved. The described sequence of the diameters of the elements forming the intermediate rings creates sufficient space in the radial direction and in the axial direction between the elements with larger diameters in each case, which form the winding core of the untreated winding material, in which the winding material in response to a wet or warm treatment yourself can put in. Depending on the dimensioning of this free space and the size of the shrinkage of the winding material, this can even make a deformability of the winding carrier in the axial or radial or in both directions superfluous.

According to one embodiment of the invention, it is proposed that the outer surface of the winding support and / or its envelope are cylindrical, conical, biconical and / or corrugated or consist of a combination of these shapes. In this embodiment, the term “lateral surface” represents the generatrix running in the axial direction, which would produce the surface contour of the winding carrier when rotated about the longitudinal axis. In contrast, the term “envelope” describes the area that is generated by a generator, which is placed over the radially outermost points of the winding carrier, when it is rotated about the longitudinal axis of the winding carrier. In this way it is possible to create zones with different space in the axial direction on one and the same winding carrier, while maintaining all previous advantages. It is therefore possible, particularly in the case of an insignificantly deformable winding carrier, to achieve all the other advantages by selecting those shapes which correspond to the space requirement of the winding material to be treated in the individual case and to prevent the threads of the winding material from becoming jammed.

A further embodiment of the invention provides that the winding carrier has at least one group of elements forming intermediate rings in the axial direction, the elements of which have at least approximately the same diameter as one another. This group formation enables the size of the empty spaces and the size of the outer winding surface with which the winding carrier comes into contact with the material to be wound to be varied and determined directly.

Another embodiment of the invention provides that at least one element is arranged on at least one side of each group, the diameter of which is larger than the diameter of the elements of an adjacent group. In this way, a safe winding core is achieved with the largest possible empty space.

Another embodiment of the invention provides that the elements which are larger in diameter relative to the elements of a group have at least approximately the same diameter as one another. In this way, the available area of the winding core can be varied on the one hand, and at the same time, both the shape of the enveloping surface and the shape of the envelope can be varied as desired, without fear of the threads of the winding material being pinched ought to.

Another embodiment of the invention provides that the helical turns or all the elements forming the intermediate rings are dimensioned in such a way that they follow an envelope assigned to the respective group of elements. Since the elements forming the intermediate rings must have different diameters, they can be divided into different diameter groups, to which an envelope can then be assigned. This envelope also determines the diameter of the elements forming the intermediate rings and its change in the axial direction of the winding carrier. It is then possible to describe the structure of the winding carrier and to specify the position and size of the empty spaces by specifying the course of the envelopes to be assigned to each group. A winding carrier constructed in this way also reliably prevents the threads of the winding material from being trapped.

A supplementary embodiment of the invention provides that at least those spiral windings or the elements forming the intermediate rings, the circumferences of which lie on the most radially outer envelope, have at least partially molded-in hollow bodies which are open at least on one side. In this way, while maintaining all previous advantages and avoiding pinching, it is possible to make the winding support radially flexible at least in the area of the outer winding core. Despite this radial flexibility, with which additional scope is created for the winding material to become narrower, the threads of the winding material are reliably avoided. It is thus possible to adapt to different requirements of the winding material while avoiding the risk of getting caught.

Also according to an embodiment of the invention it is provided that at least the helical turns or the elements forming the intermediate rings, the circumferences of which lie on the most radially inward envelope, are supported with respect to the axially adjacent elements by rigid, axially aligned spacer elements. In this way and at least for the further back and thus space-creating part of the winding support, deformability in the axial direction is prevented, so that this space is always left open with certainty, thereby reliably preventing the threads from being wound.

Another embodiment of the invention, in turn, provides that the elements forming the intermediate rings have different thicknesses in the axial direction, the elements forming the intermediate rings having openings with a greater thickness running from the inside to the outside. In certain cases, this can mean a simplification of production and, at the same time, produce a desired stability in the axial direction at the points produced in this way, which, however, relates to the respective assigned axial areas remains limited.

Another embodiment of the invention in turn provides that the elements forming intermediate rings are of greater thickness than annular bodies with an inwardly and / or externally open U-shaped cross section. In this way, with basic axial stability, an axial deformation in the respective edge regions is nevertheless possible on a small scale. With this, too, a special adaptation to special needs of special winding material qualities is achieved while avoiding the risk of the threads of the winding material becoming trapped.

Another embodiment of the invention provides that the spacer elements have a groove on their outer boundary surface following a curved course of the lateral surface. This is a particularly simple means of creating the desired pinch-free space for the winding material.

It is also proposed according to an embodiment of the invention that the spacer elements can be soft, rigid in the axial direction or differently soft or rigid at different axial locations. As a result, while maintaining all previous advantages, the most varied requirements regarding the deformability of the winding support can be met and at the same time it is possible to prevent the threads of the winding material from being pinched.

In a further embodiment of the invention it is also proposed that the spacer elements in the area of the intermediate rings with a smaller diameter or the corresponding helical windings have a higher deformation resistance in the axial direction than the other spacer elements. This enables the entire winding support to be deformed axially, which, however, assumes different orders of magnitude depending on the axial position. In particular, this design ensures that the free spaces remaining for the winding material deform less axially when the winding carrier is axially deformed than the other parts of the winding carrier, so that a desired size of an axial deformation can be achieved with the most economical design and still prevent jamming can.

Finally, according to one embodiment of the invention, it is also proposed that the spacer elements are arranged offset from one another at least in axial sections in the circumferential direction. In this way too, despite the avoidance of the danger of being trapped, a winding carrier is created which is both axially and radially deformable and inevitably also undergoes radial deformation when it is axially deformed.

The design options described above show that it has been possible with the invention to propose a winding carrier in which the pinching of threads of the winding material is reliably prevented and which can nevertheless be designed so that their deformability meets all special requirements of the most varied winding material qualities. At the same time, an almost unhindered passage of the dyeing liquor, as is already known from other winding carriers of the prior art, is made possible.

The invention will now be explained with reference to the accompanying drawings, which show various exemplary embodiments.

• Figur 1 axiales Teilstück eines Wickelträgers in Seitenansicht mit sektionsweise unterschiedlicher Gestaltung
• Figur 2 schematisch Wickelträger in Seitenansicht
• Figur 3 ausschnittsweise Längsschnitt eines Wickelträgers in Sonderform
• Figur 4 schematisch Längsschnitt eines Wickelträgers in Sonderbauart
• Figur 5 axiales Teilstück eines Wickelträgers in Seitenansicht, zwei Varianten ineinandergezeichnet

Show it:

• Figure 1 axial section of a winding carrier in side view with different design sections
• Figure 2 schematically side view of the winding carrier
• 3 shows a section of a longitudinal section of a winding carrier in a special form
• Figure 4 schematically shows a longitudinal section of a winding carrier in a special design
• Figure 5 axial section of a winding carrier in side view, two variants drawn into each other

Figure 1 shows in the axial direction a piece of a winding carrier according to the invention in side view, in which different design variants are drawn one inside the other. As a result, a large number of individual representations can be avoided. It is a winding carrier of the generic type, in which elements forming intermediate rings in axial order - which can also be parts of helices - which for simplicity are to be referred to as intermediate rings in the text below, with the reference numerals 10, 11, 12 and 14 provided, follow one another. Viewed from top to bottom, an intermediate ring 10 is initially arranged, which is followed by an intermediate ring 12 with a smaller diameter. This smaller intermediate ring 12 is again followed by an intermediate ring 10. This is now followed by an intermediate ring 11 which is larger in diameter. The intermediate ring 12, which is smaller in diameter, is held at a distance from the adjacent intermediate rings 10 by a spacer element 5 '. Spacer 5 'is designed so that the intermediate rings 10 can move towards the intermediate ring 12 in the axial direction against a certain resistance. In order to enable this axial movement of the intermediate rings, the spacer element 5 'could of course also have all other shapes and arrangements already known in the prior art and suitable for this purpose. The outer boundary surface 21 of the spacer elements 5 'is grooved or rounded, so that a free space 20 is thereby formed in the circumferential direction of the intermediate rings 10-12-10 and their spacer elements 5'.

The second intermediate ring 10 seen from above is followed by an intermediate ring 11, which in turn is followed by an intermediate ring 10. The successive intermediate rings 10 - 11 - 10 are in turn held at a distance by spacing elements 7 which are distributed in the circumferential direction and which are arranged as flat plates and one below the other. Here, the outer boundary surface 22 of these spacer elements 7 is arched outwards in the exemplary embodiment, but any other lines can also be provided.

This also applies to the corresponding lines of the other spacer elements. This shape of the spacer elements ensures axial rigidity. However, it is generally sensible if the spacer elements are designed to be axially flexible in this area, while, in the reverse sequence as shown in FIG. 1, the spacer elements 5 'are expediently rigid or at least more rigid than the spacer elements 7 in the axial direction.

The outer contour formed by the diameter of the intermediate ring 11 and the outer boundary surface 22 of the spacer elements 7 serves as a winding core on which the inner threads of the winding material come to rest.

The intermediate ring 11 following the intermediate ring 11 is followed even further inward by a group of two intermediate rings 12 which have the smallest diameter and, like the first intermediate ring 12 shown above, lie on the innermost envelope 17, while the diameter of the intermediate rings 11 is on the outer envelope 16 lies.

The two intermediate rings 12 arranged side by side in the axial direction are rigidly supported in the axial direction by spacer elements 3, so that these two intermediate rings 12 arranged side by side in the axial direction cannot move towards one another in the axial direction. A minimum distance of the free space 20 'is thus ensured in order to prevent the threads of the winding material from becoming trapped.

The support between an intermediate ring 12 and the adjacent intermediate ring 10 in the axial direction, however, takes place via spacer elements 8, which are designed as tubular hollow bodies in the exemplary embodiment, so that axial flexibility is achieved here. The size of this flexibility depends on the shape and wall thickness of these spacer elements 8. This type of construction can, in cooperation with the group of intermediate rings 10 - 11 - 10 arranged axially above it, which are held rigidly to one another in the axial direction, exert a certain desired pushing effect upon axial deformation via the spacer elements 8, which the threads of the winding material caused to dive into the free space 20 '. The spacer elements 3, which are rigid in the axial direction, between the intermediate rings 12 ensure that this area remains undeformed in the axial direction and therefore, as already described, a minimum clearance is ensured.

Another modification follows the part described so far. The lower intermediate ring 10, which still cooperates with the spacer elements 8, is followed in turn by two intermediate rings 11 in the axial direction downward, the outer circumferences of which again lie on the envelope 16. These two intermediate rings 11 are mutually rigidly supported in the axial direction via spacer elements 8 ', this group of the two intermediate rings 11 rigidly supported in the axial direction being supported upwards and downwards relative to the adjoining intermediate rings 10 via spacer elements 7 which are likewise rigid in the axial direction . Such a structure is of course not limited to two intermediate rings of the same diameter. This design enables the width of the winding core to be changed and the width of the winding core to be coordinated with the size of the free spaces 20 and 20 ', as a result of which the security against jamming can be further improved. In particular, it is possible to install deformation elements, such as the hollow bodies designed as spacer elements 8, in the intermediate rings 10 and / or 11, so that these intermediate rings can thereby be deformed in the radial direction. If these elements are installed in the intermediate rings 11, the winding core can be reduced as such (the envelope 16 can move radially inwards), or the free space 20 'can be increased by the corresponding radial deformation of the intermediate ring 10. If, in combination, an adjacent intermediate ring 10 is equipped with such hollow bodies and, at the same time, this intermediate ring 10 is braced with respect to the smaller, adjacent intermediate ring 12 with such hollow body-like spacer elements 8, it can succeed despite the axial approach of the spacer ring 12 and spacer ring 10 as a result of the radial deformability of the spacer ring 10 to keep the free space 20 'constant in size. For this purpose, however, it is then necessary to ensure that the spacer elements 7 also permit such a radial deformation of the intermediate ring 10. The options described last are not drawn separately, however, because the previous description in connection with the components already described for FIG.

Further down to the part of FIG. 1 described so far, the intermediate ring 10 is followed by an intermediate ring 14 of greater thickness, which is completely rigid in the axial direction and thus determines a minimum size of the free space 20 ". The circumference of this intermediate ring 14 is again on the envelope 17 So that the passage of the Dye liquor is not hindered, this intermediate ring 14 has openings 15 directed from the inside to the outside for the passage of the dye liquor.

A winding support of the type described is not only producible for envelopes 16 or 17 of cylindrical shape. Rather, the envelopes can take any shape. So z. B. schematically shown in Figure 2, a structure of such a winding carrier, in which the envelopes 16 and 17 are tapered in parallel to each other and the intermediate rings 11 ', 12' are only indicated. However, it is also in no way imperative that the envelopes 16 and 17 are arranged parallel to one another, rather these surfaces can also converge or diverge, so that, viewed in the axial direction, such a winding carrier can have a different deformation behavior in each axial zone, as a result of which a precise adaptation to the special properties of the particular winding material to be wound.

It is also possible, as already described for FIG. 1, to construct the winding carrier differently in different axial regions of the winding carrier, as is shown diagrammatically in FIG. 1. However, a structure of the winding carrier which is periodically repeating in the axial direction is equally possible and generally expedient. As already described, the various construction options allow adaptation to the various requirements of the winding material and yet reliably avoid the risk of the threads of the winding material becoming trapped.

In addition to FIG. 1, FIG. 3 shows an axial section of a winding carrier cut longitudinally in a central plane. In this example according to FIG. 3, the hatched cutting plane can represent the parting plane of a two-jaw molding tool to be used for the production of such winding carriers. The intermediate rings 12 "and 11" can be held at a distance from one another by different spacer elements, in the exemplary embodiment the spacer elements 3 ', 4 and 5. While the spacer elements 3 'are arranged one below the other in the axial direction and are rigid in this direction, forming the spacer elements in the form of the spacer elements 4 and 5 also allows axial flexibility in an arrangement with one another. In the exemplary embodiment according to FIG. 3, the described spacer elements 3 'and 4 and 5 all have surface lines of the same direction, which run in the direction of the demolding movement of the mold jaws, so perpendicular to the plane of the drawing. In the area of the parting plane, on the other hand, an enveloping spacer element 6 is provided on each side from top to bottom, the outer shape of which corresponds to the desired enveloping surface area 19, which also allows free spaces 23 to be created here, for example, at periodic intervals. The resulting design for the spacer element 6 ensures that this spacer element 6 in the area of the free space 23, that is to say in the area of the overlap of the intermediate rings 12 ″, has a higher resistance to deformation in the axial direction than in the area bulged outwards, each of which has an intermediate ring 11 "overlaps. In the latter area, the winding carrier is soft in the axial direction. This design also ensures a free space 23 for the material to be wound, despite the axial flexibility, in which threads of the material to be wound cannot be pinched.

However, it is also possible to make a winding support according to FIG. 3 completely rigid in the axial direction. The spacer 6 located in the division plane must then be formed in this area according to the shape of the spacer 6 '. The remaining spacer elements must then be in the same position, arrangement and structure as the spacer elements 3 '. However, it is also possible, despite the formation of the spacer element 6 'in the parting plane, in the planes pivoted by 90 ° to form the spacer elements as spacer elements which are soft in the axial direction, in the manner of the spacer elements 4 and 5, as is indicated in FIG. 3 . As a result, it is possible to produce different deformation resistances in different axial planes, which in turn enables a special adaptation to the requirements of the material to be wound without the risk of the threads of the material to be caught.

A winding carrier according to FIG. 3 can be equipped with ends 24 or 25, as shown in FIG. 4, with which several such winding carriers can be placed on a dye spear and stacked one above the other and can be guided into one another with the assigned surfaces. The part that remains open in FIG. 4 can be the part in which the part according to FIG. 3 is to be inserted. However, such a winding carrier according to FIG. 4 can also be axially deformable and forcibly with the axial deformation by changing the arrangement of the spacer elements 3. The pieces of a winding carrier shown in FIG. 4 show such a possibility of construction. This is based on the sectional plane already described for FIG. 3 and the same arrangement as already described for FIG. 3 is chosen with regard to the surface lines of the spacer elements 3 used in FIG. 4, so that a winding support according to FIG. 4 can also be produced by a two-jaw molding tool.

In order, as in FIG. 4, to achieve axial deformability with simultaneous forced radial deformation of the winding support, only the spacer elements 3 must be arranged offset from one another in the circumferential direction. In the case of axial deformation, this results in a wavy deformation of the intermediate rings, which reduces their radial extension. In the case of axial deformation, a radial deformation is thus also forced at the same time. Nevertheless, the areas of the free spaces 23 have a higher resistance to deformation in the axial direction than the other areas, so that the risk of pinching is in turn eliminated.

It is also particularly favorable if the arrangement of the spacing elements 3 offset in the circumferential direction is carried out only in groups, as shown in FIG. 4, while the arrangement within the groups is rigidly provided in the axial direction. In this way it is possible to carry out an axial as well as a radial deformation of the winding carrier without the free space distances and free space sizes changing in any significant manner. The winding carrier then creeps into one another, so to speak, only in its inner region.

A particularly simple embodiment is shown in FIG. Elements 9 of the same diameter which form intermediate rings are provided there and are kept at a distance from one another in the axial direction via spacer elements 1 and, in a variation likewise shown, via spacer elements 2. On its radially outward end face, the spacer elements 1 and 2 are provided with an outer boundary surface 13 forming a groove. In this way, it is possible to create a winding carrier with a particularly simple structure, which in the necessary manner opposes a dyeing liquor only very little resistance to penetration, and which, due to the course of the grooves, can provide sufficient space for shrinking processes for certain winding material qualities with little axial movement for certain winding material qualities. The spacer elements 1 ensure that the winding support is relatively rigid in the axial direction. A variant with the spacer elements 2 makes the winding support more flexible in the axial direction. It can even be achieved with an axial deformation of the winding carrier that the intermediate rings 9, which are kept at a distance with the spacer elements 2, simultaneously execute a slight rotational movement relative to one another with their axial movement, as a result of which the threads of the winding material slide into the outer grooves forming the grooves Interface 13 is promoted.

Overall, the innovation succeeds in proposing winding support constructions which can be adapted to the most varied of deformation requirements and which nevertheless all prevent the threads of the winding material from being pinched and at the same time allow the dyeing liquor to pass through almost unhindered. Despite the latter advantages, the other advantages of winding carriers of the prior art are obtained. This also applies to the sufficient guidance of the winding carrier on the dye spear as well as the stackability of several winding carriers on the dye spear. Likewise, winding supports according to the innovation, despite their advantages according to the innovation, can also be produced inexpensively by two-jaw molding tools, which, in addition to all the advantages described so far, can also achieve the advantage of drastically simplifying the manufacturing tools.

Claims (15)

1. Package carrier for the handling of threads or yarns, comprising two end rings and a plurality of elements (9 - 12, 14, 11', 11 ", 12', 12") constituting intermediate rings and forming a perforate annular sleeve, with said elements being connected in the axial direction by spacer elements (1 - 8; 3', 5', 6', 8') arranged in the annular sleeve and formed as ribs, wherein at least those elements (9 - 12, 14, 11', 11", 12', 12") forming the intermediate rings lie with their outer peripheral surfaces always within the annular sleeve surface (19, 18), characterised in that the annular sleeve surface (19, 18), viewed in the axial direction, has sections of larger and smaller diameter which follow one another successively, and the elements which form spacer elements at least between such intermediate rings and which overlap each other in the radial direction are substantially in alignment in the axial direction.

2. Package carrier for the handling of threads or yarns, comprising two end rings and at least one coil forming a perforate annular sleeve, with the adjacent coil turns being connected to each other in the axial direction by spacer elements formed as ribs and arranged within the annular sleeve, wherein at least the coil turns have their outer peripheral surfaces lying always within the sleeve surface (19, 18), characterised in that the sleeve surface (19, 18), viewed in the longitudinal direction, has sections of larger and smaller diameter following one another, and the coil turns which form spacer elements at least between said intermediate rings and which overlap each other in the radial direction are substantially in alignment in the axial direction.

3. Package carrier according to claim 1 or 2, characterised in that its sleeve surfaces (18, 19) and/or its contour envelopes (16, 17) are cylindrical, conical, biconical and/or undulating or are a combination of these shapes.

4. Package carrier according to one of claims 1 to 3, characterised in that it comprises in the axial direction at least one group of elements forming intermediate rings, said elements (12", 11') having at least approximately the same diameter one below another.

5. Package carrier according to claim 4, characterised in that at least on one side of each group there is at least one element (10, 11, 11', 11 ") whose diameter is greater than the diameter of the elements (12, 12', 12") of an adjacent group.

6. Package carrier according to one of claims 4 or 5, characterised in that the larger diameter elements (11, 11', 11") among the elements of a group have at least approximately the same diameter one below another.

7. Package carrier according to one of claims 4 to 6, characterised in that the coil turns or all the elements (9 - 12, 11', 11 ", 12', 12", 14) forming intermediate rings have diameters of such dimensions that they follow contour envelopes (16, 17) associated with the respective element groups.

8. Package carrier according to one of claims 1 to 7, characterised in that at least the respective coil turns, or the elements (11, 11', 11") constituting the intermediate rings and whose peripheries lie on the contour envelope (16) which lies furthest radially outwards, comprise hollow bodies which are open at least to one side and which are at least partially uniform.

9. Package carrier according to one of claims 1 to 8, characterised in that at least the coil turns, or the elements (12, 12', 12") constituting the intermediate rings and whose peripheries lie on the contour envelope (17) which lies furthest radially inwards, are supported on the axially adjacent elements by means of rigid, axially aligned spacer elements (3, 3', 7, 8).

10. Package carrier according to one of claims 1 to 9, characterised in that the elements (9 - 12, 11', 11", 12', 12", 14) constituting the intermediate rings have different thicknesses in the axial direction, and wherein the elements (14) of greater thickness constituting intermediate rings have holes (15) extending from the inside outwards.

11. Package carrier according to claim 10, characterised in that the elements (14) of greater thickness constituting intermediate rings are formed as annular members with a U-shaped cross-section which is open inwardly and/or outwardly.

12. Package carrier according to one of claims 1 to 11, characterised in that spacer elements (1, 2) on their outer edge surfaces (13) are recessed to follow a desired contour of the sleeve surface.

13. Package carrier according to one of claims 1 to 12, characterised in that the spacer elements (1 - 8, 3', 5', 6') in the axial direction can be soft, rigid or have regions of different softness and rigidity at different axial positions.

14. Package carrier according to one of claims 1 to 13, characterised in that the spacer elements in the region of the intermediate rings (12, 12', 12") of smaller diameter, or the corresponding coil turns, have a higher resistance to deformation in the axial direction than the other spacer elements.

15. Package carrier according to one of claims 1 to 14, characterised in that the spacer elements (1 - 8, 3', 5', 6'), viewed in the circumferential direction, are offset relative to one another at least in axial regions .

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