EP4168341B1 - Circumferential reel core segment, reel core, reel and set - Google Patents

Description

Field of technology

The present invention relates, according to a first aspect, to a coil core peripheral segment, according to a second aspect to a coil core, according to a third aspect to an assortment of components for assembling coils, and according to a fourth aspect to a coil.

State of the art

Spools are important in numerous technical applications for winding, storing and unwinding winding material, such as tapes, foils, paper, yarn, etc. A spool traditionally has a spool core and one or two adjoining spool flanges which protrude radially outwards beyond the spool core to form a side border for the winding material. In spools known in the prior art, the spool core is designed as a single piece, and the spool flange(s) are also designed as a single piece on the spool core. Thus, in a conventional spool, the outside diameter of the spool core and the outside diameter of the spool flanges are fixed. While spools enable space-saving storage of winding material, one disadvantage is that, particularly when requirements vary, users need a lot of space to store and transport spools. This is accompanied by undesirably high costs and is particularly noticeable for users who require coils for different applications that differ in their dimensions, particularly in the outer diameters of the coil core and/or the coil flanges.

Out of WO 00/64797 A1 A coil core circumferential segment according to the preamble of claim 1 is known.

JP 2008 162738 A describes a tape winding mechanism. JP-H11 11799 A reveals a detachable coil. CH 597 083 A5 A cable drum is known whose drum core is provided with axial recesses. JP H07 53137 A A coil is known whose coil core has several strip-shaped segments and can be connected with flanges.

US 4 039 156 A discloses a reel for use with web-shaped material, such as magnetic recording tapes, photographic film, etc. From WO 01/58795 A1 A coiled pipe handling system is known.

Summary of the invention

Against this background, the invention is based on the object of advantageously developing coils. In particular, the invention is based on the object of specifying possibilities and developing coils in such a way that the disadvantages described above can be avoided as far as possible, in particular completely.

To solve the problem, the invention proposes, according to its first aspect, a coil core circumferential segment according to claim 1, which comprises: a first mounting side and a second mounting side, wherein the first mounting side has at least one side surface that spans a first reference plane and at least one mounting means, wherein the second mounting side has at least one side surface that spans a second reference plane and at least one mounting means, wherein the first reference plane and the second reference plane together enclose a circumferential segment angle, wherein the at least one mounting means of the first mounting side has a recess that has an opening adjacent to the side surface of the first mounting side and that extends from the opening into the coil core circumferential segment, wherein in a cross-sectional plane perpendicular to the first reference plane with respect to a width direction parallel to the first reference plane, an opening width of the opening is smaller than a maximum width of the recess, and wherein the at least one mounting means of the second mounting side has a projection which has a shoulder adjacent to the side surface of the second mounting side and which extends from the shoulder away from the second reference plane, wherein in a cross-sectional plane perpendicular to the second reference plane in relation to a width direction parallel to the second reference plane, a shoulder width of the shoulder is smaller than a maximum width of the projection. Such coil core circumferential segments can be detachably connected to one another in a suitable number by means of their assembly means, resulting in a coil core whose core jacket extends over a circumference of 360 degrees. It has been found that the coil core circumferential segments required for the construction of one or more coil cores require less space than a corresponding number of coil cores for storage and transport. This is made possible by the fact that the coil cores can be disassembled into coil core circumferential segments for storage and transport, which can then be individually moved relative to one another until a desired packing size is achieved. This means that a larger number of disassembled coil cores can be accommodated in a given storage or transport space than complete coil cores.

According to the invention, the width of the Projection is smaller than or equal to the opening width of the recess, and the maximum width of the projection is smaller than or equal to the maximum width of the recess and larger than the opening width of the recess. In this way, a positive engagement for connecting two adjacent coil core circumferential segments can be achieved by means of a recess and a matching projection. It is preferred that a connection which can be made using the two assembly means can then be released again if required. It is particularly preferred that the assembly means forming a connection with one another can be separated again without destruction, preferably without damage, so that connections can be made and released multiple times.

It is considered expedient that the circumferential segment angle of each individual coil core circumferential segment is an integer fraction of 360 degrees, in particular 15 or 30 or 40 or 60 or 90 or 120 or 180 degrees. Alternatively or in combination, it is possible for the respective mounting means on the first and second mounting sides to be integrally formed on the coil core circumferential segment, i.e. in one piece, or to be firmly attached to the coil core circumferential segment.

Preferably, mounting means on the first mounting side and mounting means on the second mounting side of a respective coil core circumferential segment are coordinated with one another in terms of position and shape and size such that a first mounting side of a first coil core circumferential segment can be connected to a second mounting side of a second identically constructed coil core circumferential segment by means of the respective mounting means without the need for conventional loose connecting means, such as screws.

It is also preferred that a cross-sectional contour of the recess of the mounting means of the first mounting side and a cross-sectional contour of the projection of the mounting means of the second mounting side can be aligned relative to one another in a projection such that the cross-sectional contour of this projection fills the cross-sectional contour of this recess completely or while leaving a gap running along the edges of the cross-sectional contours. This advantageously makes it possible to use the mounting means to create a connection between adjacent coil core circumferential segments that is almost or completely free of play, at least in relation to certain directions.

Regarding the shape, according to the invention, the recess of the mounting means on the first mounting side is designed as a groove and the projection of the mounting means on the second mounting side is designed as a strip. are. By means of a groove and a strip (the latter is also referred to as a tongue), the profiles of which are undercut to match one another in a cross-sectional plane, adjacent coil core circumferential segments can be detachably connected to one another by inserting the strip into the groove, starting at one longitudinal end, until the strip is received as completely as possible in the groove. To release it, the strip can be removed from the groove again by means of a longitudinal movement. With a groove and a strip, it is also advantageous that that adjacent coil core circumference segments can be connected not only at specific points, but over a desired length.

It is possible for a cross-sectional contour of the recess of the mounting means on the first mounting side and a cross-sectional contour of the projection of the mounting means on the second mounting side to each have the same shape, with the shape having a rounded round or trapezoidal section. This is suitable, among other things, for producing a smooth and at the same time stable connection.

According to the invention, the coil core circumferential segment has a first circumferential segment surface and a second circumferential segment surface, the first circumferential segment surface extending between the edges of the first mounting side and the second mounting side that diverge from one another due to the circumferential segment angle, and the second circumferential segment surface extending between the two remaining edges of the first mounting side and the second mounting side. It is preferred that, when mounting a coil core, several coil core circumferential segments with a uniform circumferential segment angle are combined. The circumferential segment angle is expediently selected to be large enough that a suitable number of coil core circumferential segments can be connected to form a coil core that extends over 360 degrees.

Preferably, it is envisaged that the first circumferential segment surface extends along a geometric circular contour, wherein it is particularly provided that a center point of the circular contour lies laterally next to an intersection line formed by the first reference plane and the second reference plane. This advantageously enables, as will be described in more detail, Fastening means (e.g. threaded holes or threaded pins) provided on the sides of the coil core circumferential segments, which are suitable for attaching coil flanges to the coil core, can lie on straight geometric lines extending radially from a geometric central axis of the coil core.

According to the invention, there is or are a further groove or several further grooves on the first mounting side, which is or are laterally spaced from the at least one groove, and there is or are a further strip or several further strips on the second mounting side, which is or are laterally spaced from the at least one strip. It is possible for the one further groove or the several further grooves to be or are identical to the at least one groove, and for the one further strip or the several further strips to be or are identical to the at least one strip, and/or for one or more further side surfaces to be formed on the first mounting side, which are spaced from one another by the grooves, and for one or more further side surfaces to be formed on the second mounting side, which are spaced from one another by the strips. This promotes a two-dimensional, quasi-areal and therefore particularly stable connection between two adjacent coil core circumferential segments.

According to the invention, in a third reference plane perpendicular to the first reference plane and to the second reference plane, the lateral distances of the grooves from the edge of the first mounting side adjacent to the first circumferential segment surface are adapted to the lateral distances of the strips from the edge of the second mounting side adjacent to the first circumferential segment surface, so that on the first mounting side of the coil core circumferential segment a second, identical Coil core circumference segment can be mounted by inserting one strip of the second Coil core circumferential segment can be inserted into a respective groove of the coil core circumferential segment, and so that a third coil core circumferential segment identical to it can be mounted on the second mounting side of the coil core circumferential segment by inserting a strip of the coil core circumferential segment into a respective groove of the third coil core circumferential segment. This advantageously makes it possible for all coil core circumferential segments intended for the assembly of a coil core to be designed uniformly with respect to one another.

It is also preferred that the coil core peripheral segment is made in one piece from plastic, in particular by means of a plastic injection molding process.

It is possible for the coil core peripheral segment to have an annular wall that borders a cavity on which the first side surface, the second side surface, the mounting means of the first mounting side and the mounting means of the second mounting side are formed. In comparison to a design without another cavity, a weight saving can advantageously be achieved.

Furthermore, it is preferred that the coil core circumferential segment has a first end face, the surface of which runs transversely to the side surface of the first mounting side and to the side surface of the second mounting side, that the coil core circumferential segment has a second end face opposite the first end face, the surface of which runs parallel to the surface of the first end face, that on the first end face and on the second end face along the second mounting side, a plurality of threaded holes and/or a plurality of threaded pins protruding beyond the respective surface of the end face are arranged at intervals from one another and/or that on the first end face and on the second end face, each to the first circumferential segment surface adjacent, in an area between the first mounting side and the second mounting side, at least one threaded hole or at least one threaded pin protruding beyond the respective surface of the front side is arranged. Such threaded holes and/or threaded pins can be used for the detachable connection of coil flanges to a coil core formed from several coil core circumferential segments. It is possible for a respective threaded hole to be formed directly in the coil core circumferential segment. If, on the other hand, a base body of the coil core circumferential segment is made of a material that is softer than a screw, such as plastic or wood or another softer material, it is considered advantageous, particularly with regard to durability and the achievable holding force, that a respective threaded hole is formed in a threaded bushing, preferably made of metal, which is firmly inserted into the base body of the coil circumferential segment.

To achieve the object mentioned at the outset, the invention, according to its second aspect, provides a coil core that has a plurality of coil core circumferential segments according to the invention. It is provided that, in the assembled state of the coil core, coil core circumferential segments adjacent to one another in the circumferential direction are positively connected to one another by the strips of a respective coil core circumferential segment engaging in grooves of one adjacent coil core circumferential segment and by the strips of the other adjacent coil core circumferential segment engaging in the grooves of the respective coil core circumferential segment, wherein the coil core circumferential segments of the coil core are designed to be uniform with respect to one another. Reference is made to the preceding description for possible effects and advantages.

There are also numerous possibilities for preferred further development with regard to a coil core according to the invention:
It is preferred that, when the coil core is in the assembled state, side surfaces of a first assembly side of a coil core circumferential segment and side surfaces of a second assembly side of an adjacent coil core circumferential segment support one another. This promotes a stable structure of the coil core. It is considered expedient that the circumferential segment angle of each individual coil core circumferential segment is an integer fraction of 360 degrees, in particular 15 or 30 or 40 or 60 or 90 or 120 or 180 degrees, and that the multiplication product of the number of coil core circumferential segments of the coil core and the circumferential segment angle of a respective coil core circumferential segment results in 360 degrees, wherein it is provided in particular that all so-called second circumferential segment surfaces of the coil core circumferential segments extend along a circular core envelope surface.

It is possible for the respective so-called first circumferential segment surfaces of coil core circumferential segments adjacent to one another in the circumferential direction of the coil core to adjoin one another and/or for the respective second circumferential segment surfaces of coil core circumferential segments adjacent to one another in the circumferential direction of the coil core to adjoin one another and border a central opening of the coil core. This advantageously corresponds to a common external shape, so that a coil core composed of several coil core circumferential segments does not differ from conventional one-piece coils in terms of application. The formulations first circumferential segment surface and second circumferential segment surface do not indicate an order, but serve for conceptual Differentiation of the outer and inner circumferential segment surfaces with respect to a geometric central axis.

It is preferred that, in the assembled state of the coil core circumferential segments, the centers of their front-side threaded pins and/or threaded holes are arranged on lines that run radially through the center of the coil core. This simplifies assembly and disassembly as well as the standardization of hole patterns in coil flanges.

To achieve the object, the invention relates, according to a third aspect, to a range of components for assembling coils. An assortment according to the invention contains at least as components: at least one first coil core according to the invention with a first outer diameter, at least one second coil core according to the invention with a second outer diameter that is larger than the first outer diameter, at least one coil flange or several coil flanges, wherein the first coil core has a first arrangement of threaded holes on each end face of its coil core circumferential segments, wherein the second coil core has a second arrangement of threaded holes on each end face of its coil core circumferential segments, wherein each second arrangement has at least some of the or all of the threaded holes of the first arrangement in positions that are the same as the first arrangement, in particular the same positions in relation to a geometric center axis of the respective coil core and/or in relation to the first and second reference planes of the respective coil core circumferential segment, and additionally has at least one further threaded hole that is positioned at a greater radial distance from a geometric center axis of the coil core compared to the threaded holes of the first arrangement, and wherein the at least one coil flange comprises a plurality of through holes. Has a hole pattern, the hole pattern being matched to the first arrangement such that the coil flange can be aligned concentrically with the first coil core such that on the end face of each coil core circumferential segment of the first coil core facing the coil flange, each threaded hole or at least some of the threaded holes is assigned a through hole in a positionally appropriate manner, and the hole pattern being matched to the second arrangement such that the coil flange can be aligned concentrically with the second coil core such that on the end face of each coil core circumferential segment of the second coil core facing the coil flange, each threaded hole or at least some of the threaded holes is assigned a through hole in a positionally appropriate manner. In this respect, the invention proposes a detachable assembly with regard to the coil flanges. Using the features specified for this purpose, the positions of threaded holes and/or threaded pins on the one hand and through holes on the other hand are coordinated in the sense of a system concept so that different coil cores can be combined with coil flanges of the same or different dimensions. The range can, for example, also contain different coil flanges that differ from one another in their outer diameter, but which can have the same hole patterns and can therefore be exchanged for one another on coil cores. In this way, a large number of different coils can be put together from a comparatively small range of coil cores or coil core circumference segments and coil flanges, depending on requirements and application. This reduces the space required for storage and transport and the costs associated with this in practice.

The idea described can be continued, for example, for a range that has at least a third coil core with a third outer diameter, the third diameter being larger than the second Diameter, the third coil core having a third arrangement of threaded holes on each end face, each third arrangement having at least some of the or all of the threaded holes of the second arrangement at positions that are the same as the second arrangement and additionally having further threaded holes that are positioned radially outside the second arrangement with respect to a geometric center axis of the coil core. Also continuing the idea, the hole pattern of the coil flange can be coordinated with the third arrangement in such a way that the coil flange can be aligned concentrically with the third coil core in such a way that on the end face of the third coil core facing the coil flange, each threaded hole or at least some of the threaded holes is assigned a through hole that is appropriately positioned.

According to yet another aspect, the present invention comprises a coil that comprises at least one coil core according to the invention and one or two coil flanges. To this end, the invention proposes that the coil flange has a hole pattern comprising a plurality of through holes that is matched to an arrangement of threaded holes and/or threaded pins on at least one of the two end faces of the coil core, wherein the coil flange is screwed to the coil core by passing screws through through holes and screwing them into threaded holes or by passing threaded pins through through holes and screwing nuts onto ends of the threaded pins that protrude through through holes, wherein it is provided in particular that the coil has a second coil flange that is screwed onto the other of the two end faces of the coil core in a manner corresponding to the first coil flange. This advantageously enables a detachable fastening of coil flanges to a coil core formed from several coil core circumferential segments, so that an overall modular coil structure results. A further advantage can be that by means of the lateral attachment of coil flanges to a coil core, an effective safeguard against unintentional movement of coil core circumferential segments relative to one another, in particular in a lateral direction, is also made possible.

Short description of the drawings

Fig. 1

perspektivisch eine erfindungsgemäße Spule gemäß einem ersten bevorzugten Ausführungsbeispiel;

Fig. 2

eine Stirnansicht in Blickrichtung II gemäß Figur 1;

Fig. 3

perspektivisch ein Spulenkernumfangssegment des in den Figuren 1 und 2 gezeigten Spulenkerns;

Fig. 3a

eine Abwandlung des in Figur 3 gezeigten Spulenkernumfangssegments;

Fig. 4

eine Draufsicht des in Figur 3 gezeigten Spulenkernumfangssegments;

Fig. 5

einen vergrößerten Teilschnitt entlang Schnittlinie V-V gemäß Figur 4;

Fig. 6

eine Explosionsansicht zur Veranschaulichung des Zusammenbaus des in den Figuren 1 und 2 gezeigten Spulenkerns;

Fig. 7

perspektivisch eine erfindungsgemäße Spule gemäß einem ersten bevorzugten Ausführungsbeispiels;

Fig. 8

zur weiteren Veranschaulichung einen herausgeschnittenen Ausschnitt aus der in Figur 7 gezeigten Spule;

Fig. 9

eine Seitenansicht der in Figur 7 gezeigten Spule in dortiger Blickrichtung IX, im Vergleich zu Figur 7 in Verkleinerung;

Fig. 10

in Vergrößerung einen Teilschnitt entlang Schnittlinie X-X gemäß Figur 9

Fig. 11

perspektivisch ein erfindungsgemäßes Spulenkernumfangssegment gemäß einem zweiten bevorzugten Ausführungsbeispiel;

Fig. 12

einen geometrischen Vergleich des Spulenkernumfangssegments gemäß dem zweiten Ausführungsbeispiel mit dem Spulenkernumfangssegment gemäß dem ersten Ausführungsbeispiel;

Fig. 13

perspektivisch ein erfindungsgemäßes Spulenkernumfangssegment gemäß einem dritten Ausführungsbeispiel;

Fig. 14

einen geometrischen Vergleich der Spulenkernumfangssegmente gemäß dem ersten, zweiten und dritten Ausführungsbeispiel;

Fig. 15

eine mit Figur 8 vergleichbare Darstellung, jedoch betreffend zwei Spulenflansche in Verbindung mit dem Spulenkernumfangssegment des dritten Ausführungsbeispiels:

Fig. 16

exemplarisch für Spulenkernumfangssegmente gemäß dem zweiten Ausführungsbeispiel eine bevorzugte Möglichkeit zur platzsparenden Lagerung.

The invention is described below by way of example using embodiments shown in the figures. In detail:

Fig.1

perspective view of a coil according to the invention according to a first preferred embodiment;

Fig.2

a front view in viewing direction II according to Figure 1 ;

Fig.3

perspective view of a coil core circumference segment of the Figures 1 and 2 shown coil core;

Fig. 3a

a variation of the Figure 3 shown coil core circumference segment;

Fig.4

a top view of the Figure 3 shown coil core circumference segment;

Fig.5

an enlarged partial section along section line VV according to Figure 4 ;

Fig.6

an exploded view to illustrate the assembly of the Figures 1 and 2 shown coil core;

Fig.7

perspective view of a coil according to the invention according to a first preferred embodiment;

Fig.8

For further illustration, a cut-out section from the Figure 7 coil shown;

Fig.9

a side view of the Figure 7 shown coil in the direction of view IX, compared to Figure 7 in reduction;

Fig.10

in enlargement a partial section along section line XX according to Figure 9

Fig. 11

perspective view of a coil core peripheral segment according to the invention according to a second preferred embodiment;

Fig. 12

a geometric comparison of the coil core circumferential segment according to the second embodiment with the coil core circumferential segment according to the first embodiment;

Fig. 13

perspective view of a coil core circumferential segment according to the invention according to a third embodiment;

Fig. 14

a geometric comparison of the coil core circumference segments according to the first, second and third embodiments;

Fig. 15

one with Figure 8 comparable illustration, but concerning two coil flanges in connection with the coil core circumference segment of the third embodiment:

Fig. 16

exemplary for coil core circumferential segments according to the second embodiment, a preferred possibility for space-saving storage.

Description of the embodiments

The Figures 1 and 2 show a coil core 1 according to the invention according to a first preferred embodiment. This is made of four identically designed coil core circumferential segments 2 according to the invention according to the Figures 3 to 6 shown first embodiment without the aid of loose fastening means, e.g. screws or the like. As in particular Figure 3 illustrated, each coil core circumferential segment has a first mounting side 3 and a second mounting side 4, on which it can be detachably connected to adjacent, identical coil core circumferential segments 2. On the first mounting side 3, four adjacent, in the example each flat side surfaces 5 are formed, which lie in a common geometric, i.e. imaginary, reference plane E1, whereby the reference plane E1 extends beyond the edges of the side surfaces 5. In this respect, the position of the reference plane E1 is spanned identically by each of the side surfaces 5, i.e. geometrically determined. The reference plane E1 is in Figure 4 shown schematically. In the example, four side surfaces 6 are formed on the second mounting side 4, which lie in a common reference plane E2, see also Figure 4 . How Figure 4 As can also be seen, the reference planes E1 and E2 together enclose a circumferential segment angle α, which in the example is 90 degrees. Consequently, the Figures 1 and 2 The coil core shown is composed of four such coil core circumferential segments 2. For detachable connection with adjacent coil core circumferential segments 2, three mounting means 7 are integrally formed on the first mounting side 3 in the example. On the second mounting side 4, three mounting means 8 are also integrally formed, i.e. in one piece on the coil core circumferential segment 2. In the example, one mounting means 7 is located between each two adjacent side surfaces 5 and one mounting means 8 is located between each two adjacent side surfaces 6.

In the selected embodiment, ie not necessary, the mounting means 7 arranged on the first mounting side 3 are designed identically to one another, the mounting means arranged on the second mounting side 4 8 are designed identically to one another and the three mounting means 7 are designed differently from the three mounting means 8.

Each mounting means 7 has a recess 9 which is designed as a groove 10 which extends in its longitudinal direction parallel to a cutting line S common to the reference planes E1 and E2, and in a state assembled to a coil core 1 (cf. Figure 2 ) parallel to its geometric central axis M. Each recess 9 has an opening 11 bordered by two side surfaces 5 and extends in its longitudinal direction parallel to the cutting line S and transversely to its longitudinal direction from the opening 11 into the coil core peripheral segment 2. In a cross-sectional plane perpendicular to the first reference plane E1, for example in the plane of the drawing of Figure 4 , with respect to a width direction B1 parallel to the first reference plane E1, an opening width a of the opening 11 is smaller than a maximum width b of the recess 9. The recess 9 thus forms a groove 10 with an undercut cross section.

Each mounting means 8 has a projection 12 which has a projection 13 (one could also speak of a base 13) adjacent to two side surfaces 6. In the example, the projection is designed as a strip 14 which is integral, i.e. one-piece, on the coil core peripheral segment 2 and which extends in its longitudinal direction parallel to the cutting line S. In relation to a cross-sectional plane perpendicular to E1 and E2 (cf. Figure 4 ), the projection 12 extends from its extension 13 away from the second reference plane E2, in the example perpendicular to the reference plane E2.

With respect to a width direction B2 parallel to the second reference plane E2, a projection width c of the projection 13 is smaller than a maximum width d of the projection 12. The shoulder width c of the projection 12 is slightly smaller than the opening width a of the recess 9. The maximum width d of the projection 12 is slightly smaller than the maximum width b of the recess 9, but larger than the opening width a of the recess 9. From the illustration it can be seen that the shape and dimensions of the recesses 9 and the projections 12 are coordinated with one another in such a way that several identically designed coil core circumferential segments 2 can be detachably connected to one another to form a coil core 1 (see also the Figures 1 , 2 and 6 ), in that on a respective coil core circumferential segment 2, its strips 14 engage in grooves 10 of the one coil core circumferential segment 2 adjacent to it and in that on the coil core circumferential segment 2 under consideration, the 10 strips of the other adjacent coil core circumferential segment 2 engage in its grooves. For this purpose, in a third reference plane E3 perpendicular to the first reference plane E1 and to the second reference plane E2 (this runs parallel to the plane of the drawing of Figure 4 ) the lateral distances u, v, w of the grooves 10 (relative to the groove centers) from the edge 17 of the first mounting side 3 adjacent to the first circumferential segment surface 15 the lateral distances u, v, w of the strips 14 (relative to the center of the strips) from the edge 18 of the second mounting side 4 adjacent to the first circumferential segment surface 15.

In the example, the coil core circumference segments 2 are each manufactured in one piece using the plastic injection molding process. Figure 3 The line marked 23 marks the boundary between two oppositely inclined lifting slopes. As the detailed enlargement of Figure 2 shows, the cross-sectional contour of the recess 9 and the cross-sectional contour of the projection 12 have the same rounded shape to achieve a practically play-free positive engagement. With respect to a coil core circumferential segment 2, it is provided that a cross-sectional contour of a recess 9 and a cross-sectional contour of the projection 12 are projected onto one another can be aligned relative to each other such that the cross-sectional contour of the projection 12 fills the cross-sectional contour of the recess 9 with only a small edge gap to achieve a transition or clearance fit.

The Figures 2 to 4 The coil core circumferential segment 2 shown has a first circumferential segment surface 15 which is attached to a coil core 1 (cf. Figure 2 ) points radially outwards, and a second circumferential segment surface 16 which, in the assembled state on the coil core 1, points radially inwards. Accordingly, the first circumferential segment surface 15 extends between an edge 17 of the first mounting side 3 and an edge 18 of the second mounting side 4, wherein these edges 17, 18 are further spaced from one another due to the circumferential segment angle α in comparison to the two other edges 19, 20 opposite one another on the respective mounting sides 3, 4 and are therefore also referred to as diverging edges. The second circumferential segment surface 16 extends between the edge 19, which lies on the side of the first mounting side 3 opposite the edge 17, and the edge 20, which lies on the side of the second mounting side 4 opposite the edge 18. The edges 17,18 and 19, 20 run parallel to the cutting line S. The first circumferential segment surface 15 extends along a geometric circular contour K, which in Figure 4 is indicated schematically with. In the assembled state of the coil core circumferential segments 2, their respective circumferential segment surfaces 15 extend along the same circular contour K, the center of which is on the Figure 2 specified central axis M (which runs perpendicular to the drawing plane). In the example, the geometry of the coil core circumference segments 2 is selected so that in the drawing plane of Figure 2 the central axis M does not geometrically coincide with the intersection lines S of the coil core peripheral segments 2, but lies between the four intersection lines S. This advantageously enables the threaded holes 21 present on the front side of the coil core peripheral segments 2 in the embodiment in the assembled state of the coil core peripheral segments 2 are arranged on lines 22 which run radially through the geometric central axis M of the coil core 1.

In the described embodiment, the coil core circumferential segment 2 comprises a base body in the form of a wall 25 bordering an inner cavity 24. The wall 25 runs continuously along a circumference of the cavity 24, so that it is an annular wall 25. This has a substantially uniform wall thickness along its entire length. The first side surfaces 5, the second side surfaces 6, the mounting means 7, 8, and also the first and second circumferential segment surfaces 15, 16 are formed on the outside of the wall 25 facing away from the cavity 24. A surface 26 of a first end face 27 runs in planes perpendicular to the reference planes E1, E2, and a surface 28 of a second end face 29 runs on the opposite side of the coil core circumferential segment 2. A plurality of threaded holes 21 are made in the first end face 27 and in the second end face 29 at intervals from one another along the second mounting side 4. Furthermore, a further threaded hole 30 is made in the first end face 27 and in the second end face 29, each adjacent to the first circumferential segment surface 15, centrally between the first mounting side 3 and the second mounting side 4.

As the Figures 7 to 10 show, the threaded holes 21, 30 are intended for the assembly of the Figure 7 Two coil flanges 32, 33 are screwed onto the front sides 27, 28 of the coil core circumference segments 2 of the coil core 1. Figure 7 For illustration purposes, the front coil flange 33 in the direction of view is shown transparent. This also makes it clear that on the coil core 1, the first circumferential segment surfaces 15 of adjacent coil core circumferential segments 2 adjoin one another without gaps, so that a continuous cylindrical coil core shell results. Figure 7 also shows that the second circumferential segment surfaces 16 of adjacent coil core circumferential segments 2 together border a central opening 34, which can serve to receive an axle, a shaft or the like.

Figure 9 shows a top view of the Figure 7 transparently shown coil flange 33. Its outer diameter is, as Figure 7 shows, larger than the outer diameter of the spool core 1, so that a lateral edge is formed for a tape, yarn or the like to be wound onto the spool. The spool flange 33 has numerous through holes, of which the through holes 21' are positionally assigned to the threaded holes 21 of the spool core 1 and of which the through holes 30' are positionally assigned to the threaded holes 30 of the spool core 1. Accordingly, the through holes 21' are arranged along lines 22' which intersect at right angles in a center Z. The partial section in Figure 10 shows in connection with the partial section of Figure 5 that the threaded holes 21 in the selected example are located inside threaded bushings 35 made of metal, which are firmly inserted into holes opening out on the end faces 27, 29 of the coil core circumferential segment 2. In order to detachably connect the coil flanges 32, 33 to the coil core 1, a screw 38 is inserted through each through hole 21' from the outside and screwed with its threaded end into the threaded hole 21, so that the coil flanges 32, 33 are pressed firmly against the end faces 27, 29. Accordingly, screws 38 are also inserted through through holes 30', each of which fits a threaded hole 30 of a coil core circumferential segment 2, and screwed into the respective threaded hole 30.

Figure 3a shows a variant. There, at positions where in Figure 3 There is one threaded hole 21 or 30 each, one threaded pin 36 or 37, of which a threaded end projects beyond the surface 26 of the front side 27 or beyond the surface 28 of the front side 29. It is understood that positions of the through holes 21' and 30' of the coil flanges 32, 33 can be adapted to positions of the threaded pins 36, 37 in a manner corresponding to the previous description. For detachable fastening of the coil flanges 32, 33, these can be aligned on the front sides 27, 29 in such a way that the threaded pins 36, 37 project through the through holes 21' and 30' and nuts (not shown in the figures) are screwed onto the threaded ends.

Figure 11 shows a perspective view of a coil core circumferential segment 2 according to the invention in accordance with a second exemplary embodiment. As in the following figures, details and features that correspond to those in the previous figures are labeled with the same reference numerals for clarity. Figure 12 shows for comparison the Figure 11 shown coil core circumference segment 2 in solid lines and the one in the Figures 3 and 4 shown coil core peripheral segment 2 according to the first embodiment is shown in dashed lines. From the comparison it is clear that the coil core peripheral segment 2 according to the second embodiment has a smaller outer diameter than the coil core peripheral segment 2 according to the first embodiment. In comparison with the first embodiment, the coil core peripheral segment 2 according to Figure 11 the number of side surfaces 5, 6 and the mounting means 7, 8 is reduced. The number of threaded holes 21 is also reduced. In the respective state assembled to form a coil core 1 (see Figure 12 ), the centers of the threaded holes 21 in both embodiments lie along the lines 22, the intersection of which is traversed by the geometric center axis M. Starting from this intersection, which forms the center of the circular contours K, there is a threaded hole 21 at every distance at which a threaded hole 21 is located on the coil core circumference segment 2 of the second embodiment is present, there is also a threaded hole 21 on the coil core circumference segment 2 of the first embodiment, so that the hole patterns overlap when properly aligned. In addition, each coil core circumference segment 2 according to the first embodiment has an additional threaded hole 21 located radially further outwards.

Figure 13 shows in perspective a coil core circumferential segment 2 according to the invention according to a third embodiment. Figure 14 shows a schematic comparison with the coil core circumferential segments 2 of the first and second embodiments, each with a larger outer diameter. Each coil core circumferential segment 2 of the third embodiment has only three threaded holes 21 per end face 27, 29 along the second mounting side 4. At the same positions, ie at the same distance from the geometric center axis M, there are also threaded holes 21 on the coil core circumferential segments 2 of the first and second embodiments. These two coil core circumferential segments 2 also have further threaded holes 21 adjacent to the second mounting side 4 at a greater distance from the geometric center axis M.

From the foregoing it follows that the arrangement of the threaded holes 21 on the coil core peripheral segment 2 of the third embodiment is compatible with those of the first and second embodiments. Figure 9 The coil flange 33 shown (and also the coil flange 32) contains for all the Figure 14 shown threaded holes 21 a through hole 21 adapted thereto in position (i.e. in position and distance relative to the geometric center axis M). It follows that the coil flanges 32, 33 are compatible with the coil core circumferential segments 2 according to the first, second and third embodiments.

In this respect, the Figure 14 schematically compared coil core circumferential segments 2 of the three embodiments in conjunction with one coil flange 32, 33 or with two coil flanges 32, 33 also an embodiment of an inventive range of components for the assembly of coils 31.

Figure 15 shows a Figure 8 comparable representation. In this case, Figure 15 a coil core 1 according to the invention according to the third embodiment (i.e. with the comparatively smallest outer diameter) is screwed to the two coil flanges 32, 33, while the same coil flanges 32, 33 in Figure 8 are screwed to a coil core 1 according to the first embodiment, ie with the largest outer diameter.

Figure 16 shows a schematic top view of a preferred option for space-saving storage of several coil core circumference segments 2 on a pallet 39, which has a standardized base area. In the example, a number of eight coil core circumference segments 2 according to the second embodiment was selected. The illustration shows that the coil core circumference segments 2 can be arranged on the base area of the pallet 39 in a detached state such that they do not protrude beyond the outer edge. It can also be seen that, on the other hand, the coil core circumference segments 2, in an assembled state in which they are joined together to form two coil cores 1, cannot be placed on the pallet 39 without protruding beyond the outer edge. To show this, two circular contours 40 are indicated in dashed lines, which have the outer diameter of coil cores that can be assembled from the coil core circumference segments 2. List of reference symbols 1 Coil core 27 first front side 2 Coil core circumference segment 28 surface 3 first assembly side 29 second front side 4 second mounting side 30 Threaded hole 5 Side surface 30' Through hole 6 Side surface 31 Kitchen sink 7 Mounting materials 32 Coil flange 8th Mounting materials 33 Coil flange 9 Recess 34 opening 10 Groove 35 Threaded bushing 11 opening 36 Threaded pin 12 head Start 37 Threaded pin 13 Approach 38 screw 14 strip 39 palette 15 first circumferential segment area 40 Circle contour 16 second circumferential segment surface 17 edge a Opening side 18 edge b maximum width 19 edge c Width of approach 20 edge d maximum width 21 Threaded hole u Distance 21' Through hole v Distance 22 line w Distance 22' line E1 first reference level 23 line E2 second reference level 24 cavity E3 third reference level 25 Wall B1 Width direction 26 surface B2 Width direction S Cutting line Z center M geometric central axis U Circumferential direction K Circle contour α Circumferential segment angle

Claims (15)

1. Circumferential reel core segment (2), comprising: a first mounting side (3) and a second mounting side (4), wherein the first mounting side (3) has at least one side face (5) which spans a first reference plane (E1), and at least one mounting means (7), wherein the second mounting side (4) has at least one side face (6) which spans a second reference plane (E2), and at least one mounting means (8), wherein the first reference plane (E1) and the second reference plane (E2) jointly enclose a circumferential segment angle (α),

   wherein the at least one mounting means (7) of the first mounting side (3) has a recess (9) which has an opening (11) adjacent to the side face (5) of the first mounting side (3) and which extends from the opening (11) into the circumferential reel core segment (2), wherein in a cross-sectional plane perpendicular to the first reference plane (E1) with respect to a width direction (B1) parallel to the first reference plane (E1), an opening width (a) of the opening (11) is smaller than a maximum width (6) of the recess (9),

   wherein the at least one mounting means (8) of the second mounting side (4) has a protrusion (12) which has a lug (13) adjacent to the side face (6) of the first mounting side (4) and which extends from the lug (13) away from the first reference plane (E2), wherein in a cross-sectional plane perpendicular to the first reference plane (E2), with respect to a width direction (B2) parallel to the second reference plane (E2), a lug width (c) of the lug (13) is smaller than a maximum width (d) of the protrusion (12), wherein the lug width (c) of the protrusion (12) is smaller than or equal to the opening width (a) of the recess (9) and wherein the maximum width (d) of the protrusion (12) is smaller than or equal to the maximum width (b) of the recess (9) and greater than the opening width (a) of the recess (9),

   wherein the recess (9) of the mounting means (7) of the first mounting side (3) is configured as groove (10) and the protrusion (12) of the mounting means (8) of the second mounting side (4) is configured as strip (14), wherein the circumferential reel core segment (2) comprises a first circumferential segment surface (15) and a second circumferential segment surface (16), wherein the first circumferential segment surface (15) extends between an edge (17) of the first mounting side (3) and an edge (18) of the second mounting side (4), wherein these edges (17, 18) as a result of the circumferential segment angle (α) are spaced further apart from one another compared with the other two edges (19, 20) opposite thereto on the respective mounting sides (3, 4), and wherein the second circumferential segment surface (16) extends between the two other aforesaid edges (19, 20) of the first mounting side (3) and the second mounting side (4), characterized in that a further groove (10) or a plurality of further grooves (10) is or are provided on the first mounting side (3), which is or are laterally spaced apart from the at least one groove (10), that a further strip (14) or a plurality of further strips (14) is or are provided on the second mounting side (4), which is or are laterally spaced apart from the at least one strip (14),

   that in a third reference plane (E3) perpendicular to the first reference plane (E1) and to the second reference plane (E2), the lateral distances (u, v, w) of the grooves (10) from the edge (17) of the first mounting side (3) adjacent to the first circumferential segment surface (15) are adapted to the lateral distances (u, v, w) of the strips (14) from the edge (18) of the second mounting side (4) adjacent to the first circumferential segment surface (15), so that on the first mounting side (3) of the circumferential reel core segment (2) a second, circumferential reel core segment (2) identical thereto can be mounted whereby respectively one strip of the second circumferential reel core segment (2) can be inserted into respectively one groove (10) of the circumferential reel core segment (2) and so that on the second mounting side (4) of the circumferential reel core segment (2) a third circumferential reel core segment (2) identical thereto can be mounted whereby respectively one strip (14) of the circumferential reel core segment (2) can be inserted into respectively one groove (10) of the third circumferential reel core segment (2).
2. Circumferential reel core segment (2) according to Claim 1, characterized in that a cross-sectional contour of the recess (9) of the mounting means (7) of the first mounting side (3) and a cross-sectional contour of the protrusion (12) of the mounting means (8) of the second mounting side (4) in a projection onto one another can be aligned relative to one another in such a manner that the cross-sectional contour of this protrusion (12) fills the cross-sectional contour of this recess (9) completely or leaving a gap running along the edges of the cross-sectional contours.
3. Circumferential reel core segment (2) according to Claim 1 or Claim 2, characterized in that a cross-sectional contour of the recess (9) of the mounting means (7) of the first mounting side (3) and a cross-sectional contour of the protrusion (12) of the mounting means (8) of the second mounting side (4) each have the same shape, the shape having a rounded round or trapezoidal section.
4. Circumferential reel core segment (2) according to one of Claims 1 to 3, characterized in that the first circumferential segment surface (15) extends along a geometric circular contour (K), wherein in particular it is provided that a centre of the circular contour (K) is laterally next to a line of intersection (S) formed by the first reference plane (E1) and the second reference plane (E2) .
5. Circumferential reel core segment (2) according to one of Claims 1 to 4, characterized in that the one further groove or the plurality of further grooves is or are configured the same as the at least one groove and that the one further strip or the plurality of further strips is or are configured the same as the at least one strip, and/or that on the first mounting side (3) one or a plurality of further side faces (5) are formed which are spaced apart from one another by the grooves (10) and that on the second mounting side (4) one or a plurality of further side faces (6) are formed which are spaced apart from one another by the strips (14).
6. Circumferential reel core segment (2) according to one of Claims 1 to 5, characterized in that it is manufactured in one piece, in particular from plastic using the plastic injection moulding process.
7. Circumferential reel core segment (2) according to one of Claims 1 to 6, characterized in that it has an annular wall (25) bordering a cavity (24), on which the first side face (25), the second side face (26), the mounting means (7) of the first mounting side (3) and the mounting means (8) of the second mounting side (4) are formed.
8. Circumferential reel core segment (2) according to one of Claims 1 to 7, characterized in that it has a first end face (27), the surface (26) of which faces the side face (5) of the first mounting side (3) and runs transversely to the side face (6) of the second mounting side (4), so that the circumferential reel core segment (2) has a second end face (29) opposite the first end face (27), the surface (28) of which runs parallel to the surface (26) of the first end face (27), that on the first end face (27) and on the second end face (29) along the second mounting side (4) at intervals from one another, in each case several threaded holes (21) and/or several threaded pins (36) protruding over the respective surface (26, 28) of the end face (27, 29) are arranged and/or that on the first end face (27) and on the second end face (29), in each case adjacent to the first circumferential segment surface (15), in an area between the first mounting side (3) and the second mounting side (4), in each case at least one threaded hole (30) or at least one threaded pin (37) protruding beyond the respective surface of the end face is arranged.
9. Reel core (1), characterized in that the reel core (1) comprises a plurality of circumferential reel core segments (2), each according to one of Claims 1 to 8, wherein in the assembled state of the reel core (1) in the circumferential direction (U) circumferential reel core segments (2) adjacent to one another are positively connected to each other whereby on a respective circumferential reel core segment (2) the strips (14) thereof engage in grooves (10) of an adjacent circumferential reel core segment (2) and in that on the respective circumferential reel core segment (2) strips (14) of the other adjacent circumferential reel core segments (2) engage in grooves (10) thereof, wherein the circumferential reel core segments (2) of the reel core (1) are configured uniformly with respect to one another.
10. Reel core (1) according to Claim 9, characterized in that in the assembled state of the reel core (1) side faces (5) of a first mounting side (3) of a circumferential reel core segment (2) and side faces (6) of a second mounting side (4) of an adjacent circumferential reel core segment (2) support each other.
11. Reel core (1) according to one of Claims 9 and 10, characterized in that the circumferential segment angle (α) of each individual circumferential reel core segment (2) is an integer fraction of 360 degrees, in particular 30 or 40 or 60 or 90 or 120 degrees, and that the multiplication product of the number of circumferential reel core segments (2) of the reel core (1) and the circumferential segment angle (α) of a respective circumferential reel core segment (2) results in 360 degrees, wherein in particular it is provided that all the second circumferential segment surfaces (16) of the circumferential reel core segments (2) extend along a circular core envelope surface.
12. Reel core (1) according to one of Claims 9 to 11, characterized in that the respective first circumferential segment surfaces (15) of circumferential reel core segments (2) which are adjacent to one another in the circumferential direction (U) of the reel core (1) adjoin one another and/or that the respective second circumferential segment surfaces (16) of circumferential reel core segments (2) adjacent to one another in the circumferential direction (U) of the reel core (1) adjoin one another and border a central opening (34) of the reel core (1).
13. Reel core according to one of Claims 9 to 12, characterized in that in the assembled state of the circumferential reel core segments (2) midpoints of their front-side threaded pins (36) and/or threaded holes (21) are arranged on lines (22) which run radially through the midpoint of the reel core (1) .
14. Range of components for assembling reels (31), characterized in that the range contains as components at least: at least a first reel core (1) according to one of Claims 9 - 13 having a first outer diameter, at least a second reel core (1) according to one of the Claims 9 - 13 having a second outer diameter that is larger than the first outer diameter, at least one reel flange (32, 33) or several reel flanges (32, 33), wherein the first reel core (1) on each end face (27, 29) of its circumferential reel core segments (2) each has a first arrangement of threaded holes (21), wherein the second reel core (1) has a second arrangement of threaded holes (21) on each end face (27, 29) of its circumferential reel core segments (2), wherein every other arrangement has at least a part of or all of the threaded holes (21) of the first arrangement at positions that are in each case the same as the first arrangement, in particular the same positions in relation to a geometric central axis (M) of the respective reel core (1) and/or in relation to the first and second reference planes (E1, E2) of the respective circumferential reel core segment (2), and additionally has at least one further threaded hole (21, 30), which is positioned in relation to a geometric central axis (M) of the reel core (1) at a greater radial distance compared to the threaded holes (21, 30) of the first arrangement, and wherein the at least one reel flange (32, 33) has a hole pattern comprising a plurality of through-holes (21', 30'), wherein the hole pattern is matched to the first arrangement, so that the reel flange (32, 33) can be aligned concentrically to the first reel core (1) so that on the end face (27, 29) facing the reel flange (32, 33) of each circumferential reel core segment (2) of the first reel core (1) each threaded hole (21, 30) or at least a part of the threaded holes (21, 30) is assigned a through-hole (21', 30') in a positionally appropriate manner, and wherein the hole pattern is matched to the second arrangement in such a manner that the reel flange (32, 33) can be aligned concentrically to the second reel core (2), so that on the end face (27, 29) facing the reel flange (32, 33) of each reel core circumferential segment (2) of the second reel core (1) each threaded hole (21, 30) or at least a part of the threaded holes (21, 30) is assigned a through-hole (21', 30') in a positionally appropriate manner.
15. Reel (31), comprising at least one reel core (1) and at least one first reel flange (32, 33), characterized in that the reel core (1) comprises a reel core (1) according to one of Claims 9-13, that the reel flange (32, 33) has a hole pattern comprising a plurality of through-holes (21' 30') which is matched to an arrangement of threaded holes (21, 30) and/or threaded pins (36, 37) on at least one of the two end faces of the reel core (1), wherein the reel flange (32, 33) is screwed to the reel core (1) by passing screws (38) through through-holes (21', 30') and screwing them into threaded holes (21, 30) or by passing threaded pins (36, 37) through through-holes (21', 30') and screwing nuts onto ends of the threaded pins (36, 37) protruding through the through-hole (21' 30'), wherein in particular it is provided that the reel (31) has a second reel flange (32, 33), which is screwed onto the other of the two end faces of the reel core (1) in a manner corresponding to the first reel flange (32, 33).

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