EP4097291A1

EP4097291A1 - Cable, strand, and method and device for producing a cable and a strand

Info

Publication number: EP4097291A1
Application number: EP21802694.6A
Authority: EP
Inventors: Thierry VERREET; Markus ZOGG; Marco ELIG; Yeonhwan BAE
Original assignee: Kv R&d Center GmbH
Current assignee: Kv R&d Center GmbH
Priority date: 2020-11-02
Filing date: 2021-11-02
Publication date: 2022-12-07
Also published as: CN117136262A; WO2022090565A1; KR20230095116A; US20230407561A1

Abstract

The invention relates to a laid cable (1-1b), more particularly a laid fiber cable (1-1b) or a laid hybrid cable, comprising at least one core strand or one laid core cable (2-2b) and at least one outer strand (7-7b) surrounding the core strand or the core cable (2-2b), wherein the core strand, the core cable (2-2b) and/or the at least one outer strand is composed of at least one fiber line (9-9b, 10-10b). The at least one fiber line (9-9b, 10-10b) is beneficially made of a composite material having reinforcing fibers (12), the reinforcing fibers (12) of which composite material are laid to form at least one reinforcing line (11). Advantageously, a laid cable which is stable under transverse pressure is provided. The invention also relates to a strand, to a method for producing a cable and a strand, to a device for producing a cable and/or a strand, and to a device having a drum drive, said device comprising a cable according to the invention.

Description

"Rope, strand, method and device for manufacturing a rope and a strand"

The invention relates to a laid rope, in particular a laid fiber rope or laid hybrid rope, which has at least one core strand or a laid core rope and at least one outer strand surrounding the core strand, with the core strand, the core rope and/or the at least one outer strand being formed from at least one fiber strand is or are. The invention also relates to a strand, in particular a fiber rope strand or hybrid rope strand, a method for producing a laid rope, in particular a laid fiber rope or hybrid rope, and a strand, in particular a fiber rope strand or hybrid rope strand, a device for producing a laid rope and/or a Heddle, and a device with a drum drive, which has a laid rope according to the invention.

The aforementioned products, devices and methods are known from the prior art. To produce twisted wire ropes, several wires are helically twisted (= twisted) into strands. This process step is called stranding. Several strands can be twisted into a helical core rope. The core rope is twisted with several outer strands to form the wire rope, with the outer strands helically surrounding the core rope. This step is called stranding (see for example the German VDI guideline 2358). It is conceivable that a rope has at least one core strand instead of a core rope.

A particularly high tensile strength is possible, although the weight of a wire rope is very high.

In the prior art, a distinction is made between laid and braided ropes and strands. In a laid rope, outer strands are wound helically around a core rope or core strand, while a braided rope is formed of fibers or wires intertwined with one another in a tissue-like manner, or at least has such a layer.

Basic terms of rope technology are known from the prior art, in particular https://www.ropetechnology.com/bro_dt/Bro_Grundbedingungen_de.pdf. Furthermore, fiber ropes are known from the prior art, which are used, for example, by sport climbers as safety ropes. Such ropes, which are braided ropes, are formed from elongate, textile plastic fibers which are braided with a sheath braid surrounding the plastic fibers. Sufficient strength for sports applications with low weight is possible.

Hybrid ropes are also known in which a core rope is formed from a sheathed plastic monofilament bundle, which is stranded with wire strands. Although such a rope has a strength comparable to a wire rope, damage to the core rope can occur through contact of the wire strands with the monofilament bundle, for example in the event of alternating bending loads.

EP 2 673 415 B1 discloses a rope and a production method for a rope in which fibers or monofilament bundles are first covered with a matrix material before a stranding point at which the fibers or monofilament bundles are stranded to form a core rope and then when stranded on the Stranding point to be embedded into a core rope in the matrix material. A particular disadvantage of this method is that the inner fibers of the monofilament bundle are not surrounded by matrix material. A further disadvantage is that two method steps are required, a covering and a subsequent embedding.

JP H01 266231 A discloses a cable and a fiber strand made from a fiber composite material. The fiber strand is made from a mixed yarn, which includes carbon or glass fibers and plastic fibers, in a drawing process. For this purpose, the mixed yarn is pulled through inner nozzles of a matrix and a yarn formed from the matrix material through outer nozzles, so that the mixed yarn is surrounded by the matrix material yarn in a so-called “guide”. The matrix material yarn fibers fuse with one another by heating and form the matrix, in which the reinforcing fibers of the mixed yarn are then embedded and extend parallel to one another in the longitudinal direction of the fibers without being twisted.

A stranding or stranding of the reinforcing fibers in the production of the fiber strand is not provided.

JP H01 266231 A also discloses a laid rope comprising a core strand and a single outer layer formed from a plurality of untwisted fiber strands.

WO2008/129116 A1 describes a laid elevator rope comprising a core rope around which several outer layers are laid to form the elevator rope. single fiber strands are formed from a fiber composite material with parallel reinforcing fibers.

Each outer layer is made up of several individual, untwisted fiber strands.

From JP H09 21082 A fiber strands and a laid rope are known. Several parallel reinforcing fiber yarns are pulled through an impregnation bath containing a thermoplastic material and a matrix and then twisted to form a fiber strand. Several fiber strands are twisted into a laid fiber rope, which has a single-strand core rope and an outer layer with six individual, untwisted fiber strands.

Another laid rope, in which a core rope is surrounded by an outer strand layer, is known from EP 3006 611 A1. Reinforcement fibers embedded in a matrix run parallel to one another, i.e. they are not laid or twisted.

A line cable for a crane control line is known from EP 0 252 830 A1, but no laid rope.

While wire ropes have a high breaking strength combined with a high weight, hybrid ropes in particular are lighter, but with a multi-layer winding, for example on a rope drum, they are less resistant to alternating bending and transverse pressure.

Particularly in the case of ropes that are frequently deflected during use, a particularly good reverse bending strength and transverse pressure resistance is required, for example in the case of so-called running ropes that are used for a drum drive of a tower crane.

The present invention is based on the object of designing a laid rope and a strand of the type mentioned at the outset, which is particularly durable and, in particular, resistant to alternating bending and transverse pressure. Furthermore, the invention is based on the object of designing a laid rope or a strand of the type mentioned at the outset, which has a particularly high tensile strength at a low weight.

According to the invention, the object is achieved in that the at least one fiber strand is formed from a composite material having reinforcement fibers, the reinforcement fibers of which are twisted to form at least one reinforcement strand. Because the at least one fiber strand is formed from a composite material in which beaten reinforcement fibers are embedded in a matrix, non-metallic fibers in particular, such as carbon fibers, which have hitherto not been usable for high-strength cables, can advantageously be used.

Reinforcement fibers laid to form a reinforcement strand are designed in the manner of a strand or a laid rope and can preferably be produced by stranding or stranding machines known from wire rope technology.

In the reinforcement strand, layers of several reinforcement fiber layers that are adjacent in the radial direction can have an opposite direction of lay. A low-rotation reinforcement strand is advantageously formed.

Overall, a fiber strand that is resistant to bending fatigue and particularly resistant to transverse pressure is created, which forms the basis for the production of laid core ropes or strands, from which laid ropes can in turn be produced. Overall, a rope or strand is created whose individual components, ie the fiber strands, are already very resistant to alternating bending and are particularly resistant to transverse pressure.

For the purposes of the present invention, reinforcing fibers can be in the form of yarn, individual filaments, thread or bundles of a plurality of essentially parallel filaments.

It is conceivable that the reinforcing fibers have cross sections that differ from one another.

The at least one fiber strand can have a round or polygonal, for example trapezoidal, cross section.

A fiber strand which is or can be stranded with other fiber strands and/or metal wires to form a strand, for example a core or outer strand, has in particular a diameter of 0.5 to 2 mm, preferably between 1 and 1.5 mm.

A fiber strand that is or can be stranded with other fiber strands and/or metal wires to form a core cable has a diameter of 0.5 to 2 mm, preferably between 1 and 1.5 mm. It is conceivable that the at least one outer strand, the core rope or the at least one core strand has a diameter of up to 100 mm, in particular between 15 and 60 mm, preferably between 20 and 40 mm.

Although it is conceivable that the at least one reinforcement strand is formed from metallic reinforcement fibers or metallic and non-metallic reinforcement fibers, the at least one reinforcement strand is expediently formed from non-metallic reinforcement fibers and is preferably produced by a device for producing wire ropes or wire strands.

Suitable reinforcing fibers can be designed, for example, as glass fibers, mineral fibers, aramid fibers, textile fibers or carbon fibers or have a combination of high-strength metallic or non-metallic filaments. It is conceivable that reinforcement fibers of the at least one reinforcement strand are formed from different materials. For example, a portion of the reinforcing fibers may be formed from carbon while another portion is formed from aramid.

By using an existing device for the production of wire ropes or wire strands, existing machines known from wire rope technology can be used.

In one embodiment of the invention, the at least one reinforcement strand is formed from a mixed yarn that has reinforcement fiber filaments and filaments of a material from which a matrix in which the at least one reinforcement strand is embedded to form the fiber strand is formed.

Any polymer is suitable as the matrix; thermoplastics such as polyethylene (PE), polypropylene (PP), polyamide (PA), polycarbonate (PC) or polyetheretherketone (PEEK) are preferably used.

A blended yarn is a yarn whose filaments are formed from reinforcing fiber filaments and, in particular, thermoplastic filaments. If a mixed yarn is used, impregnation is not required to form a plastic matrix in which the reinforcement strand is embedded, but what is known as pultrusion with heating is sufficient. A particularly dense and homogeneous matrix can advantageously be formed, air inclusions are advantageously avoided.

The at least one reinforcement strand is expediently designed as a reinforcement braid or reinforcement rope. Existing stranding or stranding machines known from wire rope technology can advantageously be used to produce the reinforcing strand. Both that Reinforcement rope and the reinforcement strand can be multi-layered and have cross-sectional geometries that are known from wire ropes.

In a further embodiment of the invention, the proportion of the at least one reinforcing strand in the at least one fiber strand is at least 40% by volume, in particular between 45% by volume and 90% by volume, preferably between 50 and 75% by volume. The higher the proportion of the reinforcing strand, the higher the tensile strength of the fiber strand and thus of the laid rope or strand. Strength can advantageously be tailored for different applications.

The at least one core strand or the laid core rope and the at least one outer strand surrounding the at least one core strand or the core rope are expediently movable relative to one another, preferably in the longitudinal direction of the rope.

In particular under load, for example when the cable is used as the load cable of a tower crane, relative mobility is required in order to achieve particularly good mechanical strength. Adjacent outer strands and/or the at least one core strand or the outer strands directly surrounding the laid core rope can abut one another to form a parting plane. Advantageously, a laid rope or such a strand that is particularly resistant to bending, resistant to alternating bending and transverse pressure is created.

A cable according to the invention is preferably used as the running cable of a drum-driven device, in particular a drum-driven crane.

It is conceivable that each fiber strand is covered with a layer that has a coefficient of friction that is in particular less than 0.2, preferably less than 0.14.

Although it is conceivable that a sheathing at least partially surrounding the at least one core strand or the laid core rope is formed as the outer area of the matrix of the composite material of the at least one fiber strand, in a further embodiment of the invention the at least one core strand or the laid core rope is at least partially surrounded by a sheathing surrounded, wherein the sheathing is formed in particular from a different material than a matrix of the at least one fiber strand, in which the at least one reinforcing strand is embedded. It is conceivable that the sheathing is formed from the same material as the matrix of the at least one fiber strand forming the at least one core strand or the core rope.

It is also conceivable that fiber strands, which can be twisted into a strand or stranded into a laid core rope or laid rope, have a matrix which, in cross section, comprises a ring-shaped outer area, for example, and an inner area, with only the inner area of the matrix the at least one reinforcement strand is introduced. When stranding or stranding a plurality of fiber strands, the outer area can be deformed, preferably by heating the fiber strands to a temperature at which a thermoplastic material forming the matrix is deformable, in such a way that outer areas of adjacent fiber strands have a one-piece sheathing during stranding or stranding form, which is made of the same material as the matrix. The at least one core strand or the core rope is advantageously protected from abrasion by outer strands or the effects of the weather.

It is conceivable that the casing is formed from a material which has a coefficient of friction of <0.15.

In one embodiment of the invention, the rope is designed as a low-rotation or rotation-free rope. A particularly long-lasting rope is advantageously created.

In one embodiment of the invention, the laid rope has a plurality of outer strands surrounding the core strand or the core rope, the core strand, the laid core rope and the outer strands being formed from a plurality of fiber strands and each fiber strand being formed from a composite material having at least one reinforcing strand. A particularly good reverse bending strength is advantageously achieved with a simultaneous low weight and outstanding transverse pressure stability.

The laid rope expediently has a plurality of outer strands surrounding the core strand or the laid core rope, the core strand, the laid core rope and the outer strands being formed from a plurality of fiber strands and each fiber strand being formed from a composite material having at least one reinforcing strand, the fiber strands of the core strand, of the laid core rope or the outer strands have different shapes and/or sizes from one another. Advantageously, mechanical properties such as reverse bending strength, transverse pressure stability or tensile strength can be tailored for specific customer-specific cases. The invention is also based on the object of providing a method for producing a laid rope, in particular a laid fiber or hybrid rope, which has at least one core strand or a laid core rope and at least one outer strand surrounding the core strand or the core rope, with the core strand, the core rope and/or the at least one outer strand is/are formed from at least one fiber strand.

According to the invention, the object is achieved in that the at least one fiber strand is formed from a composite material having reinforcement fibers, the reinforcement fibers being beaten to form at least one reinforcement strand.

In one embodiment of the method, several strands of a mixed yarn, which has reinforcing fiber filaments and filaments formed from a preferably thermoplastic material, are laid and pultruded with heating to form the fiber strand.

During the production of the fiber strands, the pultrusion advantageously ensures that no defects occur, for example air inclusions. Another advantage is that the yarn does not have to be coated before stranding or stranding, since the matrix material is beaten along as filaments of the mixed yarn and the matrix is formed during the pultrusion.

The invention is also based on the object of creating a device by means of which stranding or stranding machines that are known and already used for wire rope production can continue to be used, above all, for the production of predominantly non-metallic twisted ropes or strands.

The object is achieved according to the invention in that the device comprises a pultrusion device which is connected upstream of a first bunching and/or stranding device and downstream of a further bunching or stranding device.

The reinforcing fibers can be unwound from a plurality of spools and laid to form the reinforcing strand with a first, existing bunching or stranding machine. A mixed yarn is preferably used, ie a yarn whose filaments are formed from reinforcing fiber filaments and, in particular, thermoplastic filaments. After the reinforcement and plastic filaments have been beaten, pultrusion takes place, ie drawing with heating, as a result of which the plastic filaments form a homogeneous matrix in which the beaten reinforcement fibers are embedded. Fiber strands produced in this way, which preferably have a round cross section, can be laid into a strand, a rope or a core rope with an existing stranding or stranding machine downstream of the pultrusion device.

Further advantageously, an existing device that can be used for wire rope production only has to be supplemented by a pultrusion device in order to be able to produce a laid rope according to the invention or a stranded wire according to the invention. There is no need to purchase additional or special machines.

The invention is also based on the object of developing a method with which the discard state of a laid rope according to the invention can be reliably determined.

According to the invention, the object is achieved in that, based on a number of damaged or torn fiber strands of outer strands, it is determined whether the laid rope is ready for discard.

Standardized methods known from wire ropes for determining the discard state can advantageously be used.

In a first method step, the laid rope can be examined for cracks or damage over its entire length, for example. The area in which the most damaged or broken fiber strands are found forms a so-called reference length, i.e. a rope section that is used to determine the discard state. The reference length is preferably an integer multiple of the rope diameter, for example thirty times. The reference length is used to determine whether a number of damaged or torn fiber strands is above or below a limit value for the type of rope to be examined. Technically recognized limit values for different rope types are known, for example, from the German VDI Guideline 2358.

In one embodiment of the invention, the at least one core strand or the core rope is surrounded by at least one layer of outer strands that has several outer strands, with a matrix material of a matrix of the core strand or the core rope preferably lying against a matrix material of the outer strands. A direct contact of reinforcing fibers of a fiber strand with those of an adjacent fiber strand is advantageously prevented. Due to the fact that the core strand or the core rope is only in contact with the outer strands, there is no material connection.

It is conceivable that a core strand, a core rope or an outer strand is formed from up to fifty fiber strands and up to ten layers of outer strands surrounding the core strand are provided. are. Surrounded means in particular that the outer strands are stranded (=laid) with the at least one core strand or the core rope using manufacturing techniques known from wire rope production.

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings relating to the exemplary embodiments. Show it:

1 several embodiments of a rope according to the invention and an exemplary embodiment of a strand according to the invention,

2 several embodiments of a further rope according to the invention,

3 several embodiments of a third cable according to the invention.

A laid rope 1 shown schematically in cross section in FIG. Outer core strands 5, 6 of the outer core strand layer 4 have different cross-sectional sizes and shapes, in particular different from one another.

The core rope 2 is stranded with a total of eight outer strands 7, which form a single outer strand layer 8, to form the rope 1. A rope 1 shown in FIG. 1a has little rotation.

Thirty-one fiber strands 9, 10 were stranded to form a round outer strand 7 of a rope 1 shown schematically in detail in FIG are roughly the same size.

The fiber strands 10 are inner fiber strands of a core rope 2 or a strand 5, 6, 7, the fiber strands 9 are outer fiber strands of a core rope 2 or a strand 5, 6, 7.

Each fiber strand 9 , 10 comprises a reinforcing strand 11 extending in the longitudinal direction of the fiber strand, which has a plurality of reinforcing fibers 12 made of carbon which have been wound into a reinforcing strand and are embedded in a polypropylene matrix 13 . For reasons of clarity, reinforcement strands 11 and reinforcement fibers 12 are not shown in all fiber strands 9, 10 in FIG.

Although all the strands of a rope 1 shown in FIG. Such a fiber strand strand is a so-called hybrid strand, a rope having such a fiber strand is a so-called hybrid rope.

Existing stranding or stranding machines originally intended for wire rope production can advantageously be used to produce the laid rope 1 according to the invention, and at the same time a laid rope that is particularly light and resistant to alternating bending and has particularly good transverse pressure stability can be created.

The fiber strands 9, 10 can be produced by means of pultrusion, in that a mixed yarn containing reinforcing fibers 12, which has filaments made of polypropylene and carbon, for example, is unwound from a plurality of yarn spools and laid in a first bunching or stranding machine. During pultrusion, i.e. under tension, in a pultrusion device which is connected upstream of the first bunching or stranding machine and downstream of a second bunching or stranding machine, the polypropylene filaments soften when heated and form a homogeneous matrix 13, into which the reinforcement strand 11 is beaten Reinforcing fibers 12 are embedded.

After the matrix 13 has cooled and solidified, the fiber strands 9, 10 can be further processed with the second stranding or stranding machine, which is connected downstream of the pultrusion device.

Spooling onto storage spools prior to further processing is conceivable.

Because polypropylene forming a matrix 13 can be deformed by heating the fiber strand 9, 10 and solidifies again by cooling, a change in the cross-sectional shape or size is conceivable by the application of deformation forces. For this purpose, a heating device can be provided, which is arranged in front of or at a stranding or stranding point of a corresponding stranding or stranding device.

It is conceivable that individual fiber strands 9, 10 are deformed in such a way that a trapezoidal or polygonal cross section is formed, for example as shown in FIG.

It is also conceivable that a cross-sectional shape or size of individual fiber strands is changed before stranding or stranding or of manufactured ropes.

A laid rope 1 shown schematically in cross section in FIG. 1c differs from that shown in FIG. ze 3 and two outer core strand layers 4, 14, of which the outermost core strand layer 14 has core outer strands 5, 6, which have different diameters from one another.

Furthermore, the core strand 3 is formed from seven fiber strands 9, 10 with a round cross section, while outer strands 7 with a round cross section are formed from seven fiber strands 9, 10 with a polygonal cross section.

Reference is now made to FIG. 2, where the same or equivalent parts are denoted by the same reference number as in FIG. 1 and the letter a is added to the relevant reference number.

A laid rope la shown schematically in cross section in FIG. 2a differs from those shown in FIG. 1 in that a core rope 2a is surrounded by a sheathing 15 shown hatched, in which halves 16 of outer strands 7a facing the core rope 2a are embedded. The outer core strands 5a are protected from damage by the sheathing 15 .

The sheathing 15 can be formed by stranding the core cable 2a with the outer strands 7a in a plastic bath containing molten plastic, preferably thermoplastic, forming the sheathing, such as polypropylene (PP) or polyethylene (PE).

In addition, the core cable 2a has a core strand 3a and a single outer core strand layer 4a. The core strand 3a and the core outer strands 5a have identical cross sections.

A laid rope la shown in cross-section in FIG. 2b differs from that shown in FIG. 2a in that outer strands 7a are flattened on a side 17 facing away from the core rope 2a. This is possible, for example, by hammering, with or without prior heating.

Reference is now made to Fig. 3, where the same or equivalent parts are denoted by the same reference numerals as in Figs. 1 and 2 and the relevant reference numeral is followed by the letter b in each case.

A laid rope lb shown in cross-section in Fig. 3a differs from those shown in Figs. 1 and 2 in particular in that a core rope 2b and outer strands 7b are incorporated into a single polypropylene matrix 18 acting as a sheath in such a way that both a core strand 3b and Core outer strands 5b and the core rope 2b facing te halves 16b of the outer strands 7b are embedded in the matrix 18 acting as a sheath. The matrix material of the matrix 18 can be different from the matrix material that the fiber strands 9b, 10b have.

The laid rope lb shown in FIG. 3a can be produced by stranding or stranding fiber strands 9b, 10b in a molten polypropylene bath.

It is conceivable that the laid rope lb is produced by fiber strands 9b, 10b, which in cross-section have an annular outer region, not shown in FIG. 3, and an inner region of a matrix designated 13 in FIG a reinforcement strand are introduced, stranded or stranded. The outer area can be deformed during stranding or stranding of the fiber strands, preferably with heating up to a temperature at which a thermoplastic, a matrix-forming plastic is deformable, such that the outer areas when stranding or stranding of adjacent fiber strands 9b, 10b die forming matrix 18 acting as a sheath.

A laid rope lb shown in cross section in FIG. 3b differs from that shown in FIG. 3a in particular in that outer strands 7b are flattened on a side 17b facing away from the core rope 2b, with the flattened areas forming circular arcs.

It goes without saying that all possible combinations of features of the features shown in FIGS. 1 to 3 are conceivable. For example, a laid rope shown in FIG. 1a can have outer strands according to FIG. 3b.

Although ropes 1-lb with a single outer strand layer 8-8b are shown in FIGS. 1 to 3, it is conceivable that several outer strand layers are provided. Adjacent outer strand layers can preferably have opposite directions of lay, so that a low-rotation or rotation-free rope is formed.

It is also conceivable that reinforcing fibers are used which are formed from different materials and/or have different cross-sectional sizes. In particular, this is possible when using a mixed yarn, which is unwound from several yarn spools to produce a fiber strand 9-9b, 10-10b. It is also conceivable that each fiber strand 9-9b, 10-10b has more than one reinforcing strand 11, for example two or three, which preferably extend parallel to one another in the longitudinal direction of the cable.

Claims

1. Laid rope (1-lb), in particular laid fiber rope (1-lb) or laid hybrid rope, which has at least one core strand or a laid core rope (2-2b) and at least one outer strand surrounding the core strand or the core rope (2-2b). (7-7b), wherein the core strand, the core rope (2-2b) and/or the at least one outer strand is or are formed from at least one fiber strand (9-9b, 10-10b), characterized in that the at least a fiber strand (9-9b, 10-10b) is formed from a composite material having reinforcement fibers (12), the reinforcement fibers (12) of which are beaten to form at least one reinforcement strand (11).

2. Laid rope according to claim 1, characterized in that the at least one reinforcement strand (11) is formed from non-metallic reinforcement fibers (12) and is preferably produced by a device for producing wire ropes or wire strands.

3. Laid rope according to claim 1 or 2, characterized in that the at least one reinforcement strand (11) is formed from a mixed yarn which has reinforcement fiber filaments and filaments of a material from which a matrix (13) into which the at least one reinforcement strand ( 11) is embedded to form the fiber strand (9-9b, 10-10b).

4. Laid rope according to one of claims 1 to 3, characterized in that the at least one reinforcement strand (11) is designed as a reinforcement braid or reinforcement rope.

5. Laid rope according to one of Claims 1 to 4, characterized in that a proportion of the at least one reinforcing strand (11) in the at least one fiber strand (9-9b, 10-10b) is at least 40% by volume, in particular between 45% and 45% by volume and 90% by volume, preferably between 50 and 75% by volume.

6. Laid rope according to one of claims 1 to 5, characterized in that the at least one core strand or the laid core rope (2-2b) and the at least one outer strand (7-7b) surrounding the core strand or the core rope (2-2b) are movable relative to each other, preferably in the longitudinal direction of the cable.

7. Laid rope according to one of Claims 1 to 6, characterized in that the at least one core strand or the laid core rope (2-2b) is at least partially surrounded by a sheath (15; 18), the sheath (15, 16) is formed in particular from a different material than a matrix (13) of the at least one fiber strand (9-9b, 10-10b), in which the at least one reinforcing strand (11) is embedded.

8. Laid rope according to one of claims 1 to 7, characterized in that the rope (1-lb) is designed as a low-rotation or rotation-free rope.

9. Strand (7-7b), in particular fiber rope strand (7-7b) or hybrid rope strand, which is formed from at least one fiber strand (9-9b, 10-10b), characterized in that the at least one fiber strand (9-9b, 10 -10b) is formed from a composite material having reinforcement fibers (12), the reinforcement fibers (12) of which are beaten to form at least one reinforcement strand (11).

10. A method for producing a laid rope (1-lb), in particular a laid fiber or hybrid rope, which has at least one core strand or a laid core rope (2-2b) and at least one outer strand surrounding the core strand or the core rope (2-2b). (7-7b), wherein the core strand, the core rope (2-2b) and/or the at least one outer strand is/are formed from at least one fiber strand (9-9b, 10-10b), characterized in that the at least a fiber strand (9-9b, 10-10b) is formed from a composite material having reinforcement fibers (11), the reinforcement fibers (12) being beaten to form at least one reinforcement strand (11).

11. The method according to claim 10, characterized in that 17 that several strands of a mixed yarn, which has reinforcing fiber filaments and filaments formed from a preferably thermoplastic synthetic material, are beaten and pultruded with heating to form the fiber strand (9-9b, 10-10b).

12. The method according to claim 10 or 11, characterized in that the rope (1-lc) is formed in such a way that the outer strands and/or outer fiber strands (10-10b) have the same or a different cross-section than the at least one core strand, the core rope (2-2b) or inner fiber strands (9-9b).

14. A method for producing a strand (7-7b), in particular a fiber rope strand or hybrid rope strand, which is formed from at least one fiber strand, characterized in that the at least one fiber strand (9-9b, 10-10b) consists of a reinforcing fiber (11) having composite material is formed, wherein several strands of a mixed yarn, which has reinforcing fiber filaments and formed from a thermoplastic filaments, beaten and heated to form the fiber strand (9-9b, 10-10b) are pultruded.

15. Device for producing a laid rope (1-lb) according to any one of claims 1 to 8 and / or a strand (7-7b) according to claim 9, for carrying out the method according to any one of claims 10 to 13 and / or a Method according to Claim 14, characterized in that the device comprises a pultrusion device which is connected upstream of a first bunching and/or stranding device and downstream of a further bunching or stranding device.

16. Device with a drum drive, in particular a crane with a drum drive, which has a laid rope (1-lb) according to one of claims 1 to 8, wherein the laid rope (1-lb) is designed as a running rope.