stranded wire

Abstract

Stranded wire (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260) comprises at least one wire (10) and at least one insert element (18, 20, 22, 24, 26), wherein the at least one wire (10), viewed in cross section, comprises at least a first section (12) and at least one second section (14), which are connected to one another via a third section (16), in which the at least one wire (10) has a reduced cross section compared to the at least one first section (12) and the at least one second section (14), wherein the third section (16) is arranged between the at least one first section (12) and the at least one second section (14) and in the form of a connecting web between the at least one first section (12) and the at least one second section (14) and the at least one wire (10) is characterized in that the at least one first section (12) is arranged on a first radius (R1) and the at least one second section (14) is arranged on a second radius (R2) around the center point of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein the first radius (R1) and the second radius (R2) differ, wherein the at least one first section (12) and the at least one second section (14) are of the same size and / or the at least one first section (12) and the at least one second section (14) are arranged on a radius around the center of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein an imaginary straight line between a starting point (121) of the at least one first section (12) and an end point (143) of the at least one second section (14) has a perpendicular distance from the center of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260) of greater than zero, wherein the at least one first section (12) and the at least one second section (14) are of equal size.

Description

[0001] The present invention relates to a stranded wire comprising at least one wire.

[0002] Known wires essentially have a round, mostly circular, cross-section. Wires with a round cross-section impose some restrictions on the production of stranded wires. Wires with a round or circular cross-section can only be processed into strands with a hexagonal cross-section using a percussion machine if the wires and inserts are arranged symmetrically or regularly. With an asymmetrical or irregular arrangement of the wires and inserts, a choked connection is created during production, meaning the cross-section of the strand is increasingly constricted.

[0003] US 7479 597 B1 discloses a conductor cable with three concave sections and three convex sections.

[0004] From US 2 250 907 A a “composite electrical cable” is known which discloses a “three-wire cable of balanced construction” which permanently maintains the basic configuration of the “composite electrical cable” even after loading beyond an elastic limit.

[0005] From CN 2 01 877 153 U a cable is known which, among other things, reveals two separate wires that are connected by a common insulation.

[0006] From CN 2 024 443 775 U a cable is known which, among other things, reveals two separate wires connected by a common insulation.

[0007] From the generic document SU 867 974 A1, a rope is known which has at least one wire in the shape of an 8. The 8-shaped wire is formed from two conjugated ovals of unequal size.

[0008] There is therefore a need for a wire that, among other things, can eliminate the restrictions described above when manufacturing a stranded wire.

[0009] This need is met by the subject matter of claim 1. Further embodiments emerge from the dependent claims.

[0010] According to a first aspect, a wire is provided. The wire, viewed in cross-section, has at least a first section and at least a second section, which are connected to one another via a third section in which the wire has a reduced cross-section.

[0011] The third section is arranged between the first section and the second section. The third section forms the central section of the wire. The first section, the second section, and the third section can be formed integrally.

[0012] The wire can have a curved outer surface. The outer surface can be curved in the third section in the opposite direction to its curvature in the first section and in the second section. The outer surface can be concavely curved in the third section, for example. In the first section and / or in the second section, the outer surface can be convexly curved. The outer surface of the wire has at least one indentation which reduces the cross-section of the wire in the direction of the third section. The indentation can be convexly curved at least in sections in the first and / or in the second section. For example, two indentations are provided which reduce the cross-section of the wire in the third section from two directions or from two sides. The two indentations can be directed towards one another. The third section is essentially designed in the form of a connecting web between the first section and the second section.

[0013] The first section and the second section can be substantially round when viewed in cross-section. The first section and the second section can be substantially the same size. The wire can be substantially figure-8-shaped or eyeglass-shaped when viewed in cross-section. The first section and the second section can have a substantially circular cross-section, at least in sections.

[0014] According to a second aspect, a stranded wire is provided. The stranded wire comprises at least one wire with the cross-section described above. The stranded wire can also comprise a plurality of wires with the cross-section described above.

[0015] With the wires having the cross-section described above, strands can be produced that have a round cross-section.

[0016] The wires can be made of multiple materials. Wires made of a first material and wires made of a second material can be used for a stranded wire. Of course, the stranded wire can also comprise wires made of three or more different materials.

[0017] The strand has an insert element. The at least one insert element can be arranged in a predetermined position in the strand. The at least one insert element can be arranged centrally in the strand. The at least one insert element can form the center point of the strand. The predetermined position of the at least one insert element can deviate from the aforementioned position of the insert element in the center point of the strand. The at least one insert element can be arranged in the strand such that the strand has an asymmetrical or irregular structure in cross-section. The at least one insert element can have a round cross-section. Furthermore, the at least one insert element can also have a circular cross-section.

[0018] The strand has at least one wire arranged on a radius around the center of the strand. The wires on this radius can, for example, be arranged around at least one insert element. The insert element can form the center point of the strand and be surrounded by the wires arranged on the radius. Furthermore, further wires can be arranged between the center point of the strand and the wires arranged on the radius. Wires that extend essentially in the radial direction can be provided between the center point of the strand and the wires arranged on the radius. Furthermore, insert elements can be arranged between the center point of the strand and the wires arranged on the radius. At least one wire made of a different material than the wires on the radius can be arranged between the center point of the strand and the wires arranged on the radius.Furthermore, individual wires arranged on the radius can be separated from one another by insert elements arranged on the radius.

[0019] Each wire can be arranged in a predetermined position and / or orientation within the strand. Due to the cross-section of the wires, the wires can maintain their predetermined position and / or orientation within the strand during strand manufacture.

[0020] The wires can be arranged in the strand such that they extend substantially radially. The strand can have at least two wires extending parallel to one another. The parallel wires can extend radially and / or obliquely to an insert element. The strand has at least one wire, the first section of which is arranged at a first radius and the second section of which is arranged at a second radius around the center of the strand. The first radius and the second radius are different.

[0021] The stranded wire comprises at least one wire with the cross-section described above, the first section and the second section of which are arranged on a radius around the center of the stranded wire. The first section, the second section, and the third section of the at least one wire lie on a common radius around the center of the stranded wire.

[0022] The at least one insert element can be arranged such that it holds the wires in their predetermined position and / or orientation. The at least one insert element can set a predetermined distance between at least two adjacent sections of two wires. The strand can have a plurality of insert elements. The insert elements can be arranged such that at least some of the wires extend substantially in the radial direction. The insert elements can be positioned in the strand such that an irregular structure of the strand results in a cross-section. For example, the insert elements can be arranged only in a partial region of the strand when viewed in cross-section, whereas no insert elements are arranged in the remaining partial regions of the cross-section of the strand. One insert element of the plurality of insert elements can form the center point of the strand.A single insert element may be provided in the strand, which forms the center of the strand.

[0023] The wires can be arranged so that the strand has a hexagonal cross-section. The wires can be arranged in several layers with a hexagonal cross-section around the center of the strand.

[0024] According to a third aspect, a drawing die for producing a wire with the cross-section described above is provided. The drawing die has an opening. The opening has at least one projection that reduces the cross-section of the opening in at least one section.

[0025] According to a fourth aspect, a manufacturing method for a wire having the cross-section described above is proposed. A wire is drawn through at least one drawing die. The drawing die has an opening that reduces the cross-section of the wire in at least one section.

[0026] The wire can be drawn through at least one additional drawing die before the drawing die with the opening that reduces the cross-section in a certain section. For example, the wire can be drawn through a drawing die with a slot-shaped opening. With such an opening, the wire can be drawn into a flat or rod-shaped cross-section. Furthermore, at the beginning of the manufacturing process, the wire can also be drawn through a drawing die with an opening that converts the wire into a round cross-section.

[0027] It is to be understood that the terms used herein serve only to describe particular embodiments and are not intended to be limiting. Unless defined otherwise, all technical and scientific terms used herein have the meaning commonly understood by one skilled in the art to which this disclosure pertains; they are neither excessively broad nor excessively narrow. If technical terms are used inappropriately and thus do not express the technical spirit of this disclosure, they should be replaced with technical terms that will convey a correct understanding to one skilled in the art. The general terms used herein should be interpreted based on the definition in the dictionary or the context accordingly; an overly narrow interpretation should be avoided.

[0028] In this case, terms such as "comprise" or "have", etc., mean the presence of the described features, numbers, operations, acts, components, parts or combinations thereof and do not exclude the presence or possible addition of one or more other features, numbers, operations, acts, components, parts or combinations thereof.

[0029] Although terms such as "first" or "second," etc., may be used to describe various components, these components are not intended to be limited to these terms. The above terms are merely intended to distinguish one component from another. For example, a first component may be referred to as a second component without departing from the scope of the present disclosure; likewise, a second component may be referred to as a first component. The term "and / or" encompasses both a combination of the plurality of related items, as well as each item of this plurality of the described plurality of items.

[0030] In this context, when a component is said to be "connected," "in communication," or "accessible" to another component, this may mean that it is directly connected to it or directly accesses it; however, it should be noted that another component may be present in between. On the other hand, when a component is said to be "directly connected" or "directly accesses" another component, this means that there are no other components in between.

[0031] Specific embodiments of the present disclosure will now be described with reference to the accompanying drawings; like components are designated by like reference numerals throughout. In describing the present disclosure, detailed explanations of well-known related functions or constructions are omitted if they would unnecessarily detract from the spirit of the present disclosure; however, such functions and constructions will be apparent to those skilled in the art. The accompanying drawings of the present disclosure are intended to illustrate the present disclosure and are not to be construed as limiting. The technical scope of the present disclosure should be interpreted to include all such modifications, variations, and variations in addition to the accompanying drawings.

[0032] Further objects, features, advantages, and possible applications will become apparent from the following description of non-limiting embodiments with reference to the accompanying drawings. All described and / or illustrated features, individually or in any combination, illustrate the subject matter disclosed herein, regardless of their grouping in the claims or their dependencies. The dimensions and proportions of the components shown in the figures are not necessarily to scale; they may differ from what is illustrated here in the embodiments to be implemented. They depict: Fig. 1 a cross-sectional view of a wire; Fig. 2 to 18 views of various embodiments of a stranded wire with a round cross-section; Fig. 19 and Fig. 20 views of an embodiment of a stranded wire with a hexagonal cross-section; Fig. 21 a drawing die with a round opening; Fig. 22 a drawing die with an opening in the form of a slot; and Fig. 23 a drawing die for producing a wire with a cross-section reduced in one section.

[0033] Fig. 1 shows a cross-sectional view of a wire 10. The wire 10 has a first section 12, a second section 14, and a third section 16. The third section 16 connects the first section 12 and the second section 14. In the third section 16, the wire has a reduced cross-section. The first section 12 and the second section 14 have a larger cross-section than the third section 16. The first section 12 and the second section 14 are essentially round when viewed in cross-section. The third section 16 extends in the form of a connecting web between the first section 12 and the second section 14.

[0034] The wire 10 has a curved lateral surface MF. In the third section 16, the lateral surface MF is curved in the opposite direction to its curvature in the first section 12 and the second section 14. In the third section 16, the lateral surface MF is concavely curved in sections. In the first section 12 and the second section 14, the lateral surface MF is convexly curved in sections.

[0035] Viewed in an xy coordinate system, the cross-section of the wire 10 changes along its extension in the x-direction. Starting from the starting point 121 on the lateral surface MF of the wire 10, the cross-section of the wire 10 increases in a curved manner in the y-direction up to the vertices 122 and 123. Between the vertices 122 and 123, the first section 12 of the wire 10 has its largest cross-section or its greatest extension in the y-direction. Starting from the vertices 122 and 123, the cross-section of the wire 10 decreases in a curved manner in the first section 12 towards the third section 16. In the third section 16, the wire 10 has its smallest cross-section in the y-direction. Since the lateral surface MF of the wire 10 is also curved in the third section 16, the wire 10 has its smallest cross-section in the y-direction between the vertices 161 and 162 in the third section 16.Starting from vertices 161 and 162, the cross-section of wire 10 in the second section 14 increases again, curved, up to vertices 141 and 142 of the curvature of the second section 14. Between vertices 141 and 142 of the curvature of the lateral surface MF in the second section 14, the wire 10 in the second section 14 has its largest cross-section in the y-direction. Starting with vertices 141 and 142, the cross-section of wire 10 decreases in the y-direction in the third section 14, curved, up to the end point 143.

[0036] The third section 16 is arranged between the first section 12 and the second section 14. The third section 16 lies on an imaginary straight line through the starting point 121 and the end point 143, which Fig. 1 is shown as a dotted line.

[0037] The above description of the cross-section of wire 10 can be summarized as follows. Between the vertices 122, 123 and 141, 142 of the curvatures of the lateral surface MF in sections 12 and 14, wire 10 has a respective indentation EW1 and EW2, which reduce the cross-section of wire 10 in the third section 16. The indentations EW1 and EW2 extend toward each other in the y-direction and reduce the cross-section of wire 10 in the third section 16. As a result, wire 10 has its smallest cross-section in the y-direction in the third section 16.

[0038] Fig. 2 shows a strand 100. The strand 100 has three of the Fig. 1, which are designated 101, 102, and 103. The stranded wire 100 has an insert element 18 that forms the center point of the stranded wire 100. The insert element 18 has a round cross-section. The wires 101, 102, and 103 are arranged around the insert element 18 and each rests against the insert element 18 with their first section 12 and their second section 14. The wires 101, 102, and 103 lie on a radius R around the center point of the stranded wire 100, i.e., on a radius R around the insert element 18.

[0039] The wires 101, 102, and 103 touch each other at contact points BS1, BS2, and BS3. The second section 14 of the wire 101 rests against the first section 12 of the second wire 102 at contact point BS1. The second section 14 of the wire 102 touches the first section 12 of the wire 103 at contact point BS2. The second section 14 of the wire 103 contacts the first section 12 of the wire 101 at contact point BS3. The contact points BS1, BS2, and BS3 between the wires 101, 102, and 103 lie on the radius R around the insert element 18, which forms the center of the strand 100.

[0040] For the sake of clarity, only individual contact points are marked in the figures below. For figures with radii drawn, it can be assumed that contact points lie on these radii, even if the contact points are not shown in the corresponding figures.

[0041] Fig. 3 shows a stranded wire 110. The stranded wire 110 has several insert elements 18, 20, 22, 24, 26, 28, 30. The stranded wire 110 has six wires 101 to 106. The insert element 18 forms the midpoint or center of the stranded wire 110. The second sections 14 of the wires 101 to 106 rest against the insert element 18. The second sections 14 of the wires 101 to 106 lie on a first radius R1 around the insert element 18. The second sections 14 of the wires 101 to 106 touch each other at the contact points BS ZA The first radius R1 passes through the contact points BS ZA For reasons of clarity, Fig. 3 only one of the contact points BS ZA between the second sections 14 of the wires 101 to 106.

[0042] The wires 101 to 106 extend radially outward at an angle from the insert element 18. One of the insert elements 20, 22, 24, 26, 28, 30 is arranged between two first sections 12 of two adjacent wires 101 to 106. The first sections 12 of the wires 101 to 106 and the insert elements 20, 22, 24, 26, 28, 30 lie on a common second radius R2 around the insert element 18. The first sections 12 of the wires 101 to 106 touch the insert elements 20, 22, 24, 26, 28, 30 at contact points BS. EAE . The contact points BS EAE lie on the second radius R2. The insert elements 20, 22, 24, 26, 28, 30 each also touch a second section 14 of one of the wires 101 to 106 at a contact point BS ZAE . The insert elements 20, 22, 24, 26, 28, 30 thus contribute to the fact that the wires 101 to 106 can be arranged and held in the strand 110 in a predetermined position and / or position.

[0043] Fig. 4 shows a strand 120. The structure of the strand 120 largely corresponds to the structure of the strand 110, which was described above with reference to Fig. 3. In addition to the wires 101 to 106 and the insert elements 20, 22, 24, 26, 28, 30, further wires 107 to 10 15 arranged. The wires 107 to 10 15 are arranged on a third radius R3 around the insert element 18. The wires 107 to 10 15 extend with their sections 12, 14, 16 on the third radius R3. The third radius R3 extends through the contact points BS between a second section of the wires 107 to 10 15 and a first section 12 of one of the wires 107 to 10 15 . The contact point BS is, for example, between the second section 14 of the wire 107 and the first section 12 of the wire 10 15 registered.

[0044] Fig. 5 shows a stranded wire 130. The stranded wire 130 has wires 101 to 108. Furthermore, the stranded wire 130 comprises insert elements 18, 20, 22. The insert element 18 forms the center point of the stranded wire 130. The second sections 14 of the wires 101, 102, 104, 105, 107, and 108 abut the insert element 18. The sections 14 of the wires 101, 102, 104, 105, 107, and 108 lie on a radius R1 around the insert element 18, which forms the center point of the stranded wire 130. These second sections 14 touch each other at the contact points BS ZA , of which Fig. 5 the contact point BS ZA between wire 101 and wire 108. The insert elements 20 and 22, the first sections 12 of wires 101, 102, 104, 105, 107, and 108, as well as wires 103 and 106 with their sections 12, 14, and 16, lie on a second radius R2. The radii R1 and R2 represent different radii around the center of the strand 130.

[0045] The insert element 20 is arranged between the wires 101 and 102. The insert element 22 is arranged between the wires 107 and 108. The insert elements 20 and 22 are arranged only in a partial area of ​​the cross-section of the stranded wire 130. The stranded wire 130 has an irregular structure. The wires 103 and 106, which extend with their sections 12, 14, and 16 on the radius R2, are arranged between the wires 102 and 104, and 105 and 107, respectively. These elements touch each other at the contact points BS. R2 . The radius R2 passes through the contact points BS R2 .

[0046] Fig. 6 shows a further embodiment of a stranded wire 140. The structure of the stranded wire 140 largely corresponds to the structure of the stranded wire 130 according to Fig. 5. Compared with strand 130 according to Fig. 5 has the strand 140 in Fig. 6 additional wires 109 to 10 17, which are arranged with their first sections 12, second sections 14 and third sections 16 on a radius R3. The wires 109 to 10 17 touch each other at the contact points BS. In each case, a first section 12 of one of the wires 109 to 10 17 touches a second section 14 of one of the wires 109 to 10 17 at the contact point BS. The radius R3 extends through the contact points BS.

[0047] Fig. Figure 7 shows a stranded wire 150 in cross-section. The stranded wire 150 comprises wires 101 to 108. The wires 102, 103, 104, 106, 107, and 108 rest with their second sections 14 against an insert element 18, which forms the center of the stranded wire 150. The second sections 14 of the wires 102, 103, 104, 106, 107, and 108 lie on a radius R1. The second sections 14 of the aforementioned wires touch each other at the contact points BS. ZA. The insert elements 20 and 22, the first sections 12 of the wires 102, 103, 104, 106, 107 and 108 as well as the wires 101 and 105 with their sections 12, 14 and 16 lie on a second radius R2. The wire 101 is arranged between the wires 102 and 108. The first section 12 of the wire 101 touches the first section 12 and the second section 14 of the wire 102. The second section 14 of the wire 101 touches the first section 12 and the second section 14 of the wire 108. The contact point BS R2between the first sections 12 of the wires 101 and 102 and the contact point between the second section 14 of the wire 101 and the first section 12 of the wire 108 lie on the second radius R2. The above statements also apply analogously to the wire 105, which is arranged in the same way as the wire 101, but extends between the wires 104 and 106. The wires 101 and 102 lie with their two sections 12, 14, and 16 on the second radius R2.

[0048] Wires 103 and 104 extend essentially parallel to each other and in a radial direction. The same applies to wires 106 and 107. The first sections 12 of wires 103 and 104 touch each other. The first sections 12 of wires 106 and 107 also touch each other. The contact points BS R2The first sections 12 of the wires 103, 104, 106, and 107 lie on a second radius R2. The insert element 20 is arranged between the wires 102 and 103. The insert element 20 contacts the first section 12 of the wire 102 as well as the first section 12 and the second section 14 of the wire 103. The insert element 22 is arranged between the wires 107 and 108 and contacts the first section 12 of the wire 108 and the two sections 12 and 14 of the wire 107. The contact points BS R2 between the insert element 20 and 22 with the first section 12 of the wires 102, 103, 107 and 108 lie on the second radius R2.

[0049] Fig. 8 shows a stranded wire 160. The structure of the stranded wire 160 corresponds to the structure of the stranded wire 150, but additionally has a layer of wires 109 to 10 17 which are arranged on a third radius R3.

[0050] Fig. 9 shows a stranded wire 170. The stranded wire 170 has five insert elements 18, 20, 22, 24, and 26. The insert element 18 forms the center of the stranded wire 170. The insert elements 20, 22, 24, and 26 are arranged on the radius R2. The insert elements 20, 22, and 24 are each arranged between the wires 107, 101, 102, and 103. The insert element 26 is arranged between the wires 104 and 105. The insert elements 20, 22, 24, and 26 each contact the first section 12 of the wires 107, 101, 102, 103, 104, and 105.

[0051] The wire 106 extends with its sections 12, 14, and 16 on the radius R2. The first section 12 of the wire 106 touches the first section 12 and the second section 14 of the wire 107. The second section 14 of the wire 106 touches the first section 12 and the second section of the wire 105.

[0052] The second sections 14 of the wires 101, 102, 103, 104, 105, and 107 touch the insert element 18 and lie on a first radius R1. The first sections 12 of the wires 101 to 105 and 107 lie on the second radius R2. The wire 106, with its sections 12, 14, and 16, lies on the radius R2, as do the insert elements 20, 22, 24, and 26.

[0053] Fig. 10 shows a stranded wire 180. The stranded wire 180 essentially corresponds in its structure to the stranded wire 170. The stranded wire 180 additionally has wires 108 to 10 arranged on the radius R3. 16 Furthermore, the wires 101 to 105 and 107 are made of a different material than the wires 106 and 108 to 10 16 In other words, the wire 106, which lies entirely on the second radius R2, and the wires 108 to 10 16 on radius R3 made of a different material than wires 101 to 105 and 107.

[0054] Fig. 11 shows a stranded wire 190. The stranded wire 190 has insert elements 18, 20, 22, 24, 26. Between the insert elements 20 and 26, the two wires 106 and 107 extend substantially parallel to each other. The insert element 20 contacts the sections 12 and 14 of the wire 107 and the first section 12 of the wire 101. The insert element 26 contacts the two sections 12 and 14 of the wire 106 and the first section 12 of the wire 105.

[0055] The wire 104, with its sections 12, 14, and 16, lies on the second radius R2. The first section 12 of the wire 104 lies against the sections 12 and 14 of the wire 103. The second section 14 of the wire 104 touches the two sections 12 and 14 of the wire 105. The insert elements 20, 22, 24 are located on the second radius R2 and are arranged between the wires 107, 101, 102, and 103.

[0056] The second sections 14 of the wires 101, 102, 103, 105, 106, and 107 lie on the first radius R1, and the second sections 14 lie on the second radius R2. Sections 12 and 14 of the aforementioned wires lie on the differing radii R1 and R2.

[0057] Fig. 12 shows a stranded wire 200. The stranded wire 200 is largely similar in structure to the stranded wire 190, but additionally has wires 108 to 10 arranged on the third radius R3. 16 The wires 108 to 10 16 lie with their sections 12, 14 and 16 on the third radius R3.

[0058] Fig. 13 shows a stranded wire 210. The stranded wire 210 has five insert elements 18, 20, 22, 24, 26. The insert element 18 forms the center point of the stranded wire 210. The wires 106 and 107 extend essentially parallel to one another in a radially outward direction. Between the wires 106 and 104, the wire 105 extends on the second radius R2, i.e., the sections 12, 14, and 16 of the wire 105 lie on the second radius R2. The insert element 20 is arranged between the wire 101 and the wire 107 and touches the first two sections 12 of these wires. Furthermore, the insert element 20 contacts the second section 14 of the wire 107. The insert element 22 contacts the first section 12 and the second section 14 of the wire 101. In addition, the insert element 22 contacts the first section 12 of the wire 102. The insert element 22 contacts the sections 12 and 14 of the wire 102 and the first section 12 of the wire 103.The insert element 26 is arranged between the wires 103 and 104 and contacts both sections 12 and 14 of the wire 103 and the first section 12 of the wire 104.

[0059] The first sections 12 of the wires 101 to 104 and 106, 107, the wire 105, and the insert elements 20, 22, 24, 26 lie on the second radius R2. The second sections 14 of the wires 101 to 104, 106, and 107 touch the insert element 18 and lie on the first radius R1, which differs from the radius R2.

[0060] Fig. 14 shows a strand 220. The insert elements 18, 20, 22, 24, 26 and the wires 101 to 107 are as in the embodiment described with reference to Fig. 13 described strand 210. In addition, the strand 220 also has the wires 108 to 10 16 which, with their sections 12, 14 and 16, lie on the third radius R3, which differs from the radii R1 and R2.

[0061] Fig. 15 shows a stranded wire 230. The stranded wire 230 has insert elements 18, 20 and 22. The insert element 18 forms the center point of the stranded wire 230. The wires 101 and 102 extend radially outwards parallel to one another. The same applies to the wires 104 and 105. The wires 103 and 106 lie on the second radius R2 around the center point of the stranded wire 230, i.e. around the insert element 18. The wire 103 extends between the wires 102 and 104 and rests with its second section 14 on the two sections 12 and 14 of the wire 102 and with its first section 12 on the two sections 12 and 14 of the wire 104. The wire 106 is arranged between the wires 105 and 107. The first section 12 of wire 106 abuts sections 12 and 14 of wire 107. The second section 14 of wire 106 abuts both sections 12 and 14 of wire 105. The insert elements 20 and 22 extend between wires 101, 107, and 108.

[0062] Fig. 16 shows a strand 240 extending from the strand 230 through the wires 109 to 10 17 which are arranged on the third radius R3.

[0063] Fig. 17 shows a stranded wire 230. The stranded wire 230 has a single insert element 18 that forms the center point of the stranded wire 230. The wires 101, 103, 104, 106, 107, and 109 extend in pairs parallel to one another and radially outward from the insert element 18. The wires 101, 103, 104, 106, 107, and 109 rest with their second section 14 against the insert element 18. The second sections 14 of the aforementioned wires lie on the first radius R1. The wires 102, 105, and 108 are arranged on the second radius R2. Wires 102, 105, and 108 are each arranged between pairs of wires 101, 109 and 103, 104 and 106, 107. Wires 101 to 109 are arranged such that they support each other and can thus maintain their predetermined position and / or posture.

[0064] Fig. 18 shows a stranded wire 240. The stranded wire 240 is constructed similarly to the stranded wire 230. In addition to the Fig. 17 shown structure of the strand 230, the strand 240 still has the wires 10 arranged on the third radius R3 10 up to 10 18 on.

[0065] Fig. 19 shows a stranded wire 250. The stranded wire 250 has a hexagonal cross-section. The wires 101 to 109 are arranged on the insert element 18 in such a way that a hexagonal cross-section results. The two sections 12 and 14 of the wires 101, 102, and 103 rest against the lateral surface of the insert element 18, which forms the center point of the stranded wire 250. The wires 104 to 109 are arranged such that a first section 12 of these wires contacts a first section 12 and a section 14 of the wires 101, 102, and 103, whereby the sections 12 and 14 do not always have to belong to a single wire 101 to 103.

[0066] The wires 101, 102, and 103, which touch the insert element 18, also touch each other at the contact points BS1. The contact points BS1 lie on a common radius R. The wires 104 to 109 also touch each other at the contact points BS2, with a first section 12 in each case contacting a second section 14. Due to the hexagonal arrangement of the wires 104 to 109, the contact points BS2 do not lie on a common radius.

[0067] Fig. 20 shows a cross-sectional view of a strand 260. The strand 260 has a similar structure to the strand 250 described with reference to Fig. 19. Compared to stranded wire 250, stranded wire 260 has 10 additional wires. 10 up to 10 18 arranged along the wires 104 to 109. For the wires 10 10 up to 10 18 Sections 12 and 14 of each of the wires 10 10 up to 10 18together contact a first section 12 or a second section 14 of the wires 104 to 109, wherein the sections 12 and 14 do not always have to belong to a single wire 104 to 109, ie it can also be the first section 12 and the second section 14 of two wires 104 to 109.

[0068] The Fig. 21 to 23 show drawing dies 300, 302 and 304, which are used to produce the Fig. 1. The drawing die 300 has a round opening 306 for drawing a wire into a shape with a round cross-section.

[0069] The drawing die 302 according to Fig. 22 has a slot-shaped opening 308. Through the slot-shaped opening 308, the wire receives a broadly oval or rod-shaped cross-section.

[0070] The drawing die 304 brings the wire into the Fig. 1. For this purpose, the drawing die 304 has an opening 310. For example, a wire with the cross-section produced by the drawing die 302 can be drawn through the opening 310 of the drawing die 304 (see Fig. 22). The opening 310 has two substantially round sections 312 and 314, which are separated from each other by two projections 316 and 318. The projections 316, 318 protrude into the opening 310 and are directed towards each other. The projections 316 to 318 reduce the cross-section of the opening 310 in this area, ie, with the projections 316 and 318, the cross-section of the wire in the third section 16 (see Fig. 1) reduced.

[0071] The Fig. The wires 10 shown in Figure 1 can be arranged such that they maintain their predetermined position and / or orientation during production or during the stranding process. This means that the wires 10 are arranged in a predetermined position and / or orientation and can maintain this position and / or orientation during the production process. During the stranding process, all wires 10 rotate in a cable assembly, and the individual wires 10 cannot be displaced due to their cross-section. With the wires 10, a strand with a round cross-section and also a circular cross-section can be produced, as for example in Fig. 3 to 18. Due to the round cross-sections of the stranded wire, which are possible with wire 10, insulation material can be saved, thus also reducing the manufacturing costs for a stranded wire.

[0072] Furthermore, as described in the Fig. 19 and Fig. 20, strands with a hexagonal cross-section can also be produced. Irregularly structured strands, which only have insert elements in certain areas, can also be produced with the Fig. 1 shown wire 10 without creating a strangulation connection or the cross-section of the strand becoming increasingly constricted.

[0073] With the Fig. The drawing die shown in Figure 23 allows a wire 10 to be drawn that occupies the space of two conventional wires 10 with a round cross-section in one strand. This reduces the production time for the wire 10 and saves capacity on the manufacturing line. With aluminum wires, the transverse conductivity of the strand is improved because no contact resistance occurs between the wires 10 with the cross-section described above.

[0074] The aspects and features mentioned and described together with one or more of the examples and figures described in detail above may further be combined with one or more of the other examples to replace a similar feature of the other example or to additionally incorporate the feature into the other example.

[0075] The description and drawings represent only the principles of the disclosure. Furthermore, any examples provided herein are expressly intended to be for educational purposes only, to assist the reader in understanding the principles of the disclosure and the concepts contributed by the inventor(s) to advance the art. All statements herein regarding principles, aspects, and examples of the disclosure, as well as specific embodiments thereof, are intended to include equivalents thereof.

[0076] Furthermore, the following claims are hereby incorporated into the Detailed Description, where each claim may stand on its own as a separate example. While each claim may stand on its own as a separate example, it should be understood that although a dependent claim in the claims may refer to a particular combination with one or more other claims, other embodiments may also include a combination of the dependent claim with the subject matter of any other dependent or independent claim. These combinations are suggested herein unless it is stated that a particular combination is not intended. Furthermore, features of a claim for any other independent claim are also intended to be included, even if that claim is not made directly dependent on the independent claim.

Claims

[1] Stranded wire (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260) comprises at least one wire (10) and at least one insert element (18, 20, 22, 24, 26), wherein the at least one wire (10), viewed in cross section, comprises at least a first section (12) and at least one second section (14), which are connected to one another via a third section (16), in which the at least one wire (10) has a reduced cross section compared to the at least one first section (12) and the at least one second section (14), wherein the third section (16) is arranged between the at least one first section (12) and the at least one second section (14) and in the form of a connecting web between the at least one first section (12) and the at least one second section (14) and the at least one wire (10) characterized by is that the at least one first section (12) is arranged on a first radius (R1) and the at least one second section (14) is arranged on a second radius (R2) around the center point of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein the first radius (R1) and the second radius (R2) differ, wherein the at least one first section (12) and the at least one second section (14) are of the same size and / or the at least one first section (12) and the at least one second section (14) are arranged on a radius around the center of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260), wherein an imaginary straight line between a starting point (121) of the at least one first section (12) and an end point (143) of the at least one second section (14) has a perpendicular distance from the center of the strand (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260) of greater than zero, wherein the at least one first section (12) and the at least one second section (14) are of equal size. [2] Stranded wire (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260) according to claim 1, wherein each wire (10) according to claim 1 occupies a predetermined position and / or posture within the stranded wire (100; 110; 120; 130; 140; 150; 160; 170; 180; 190; 200; 210; 220; 230; 240; 250; 260).

Images