WO2013182295A1

WO2013182295A1 - Water sports aerial cableway

Info

Publication number: WO2013182295A1
Application number: PCT/EP2013/001633
Authority: WO
Inventors: Wolfgang Lunghamer
Original assignee: Rixen Cableways GmbH
Priority date: 2012-06-04
Filing date: 2013-06-04
Publication date: 2013-12-12
Also published as: DE202012012791U1; DE102012011064B3

Abstract

The invention relates to a water sports aerial cableway (10) for towing a water sports athlete (11) over a water surface (12), comprising a first mast (20) and a second mast (30), a suspension cable (40) that is tensioned between the first mast (20) and the second mast (30) and a drive cable (50), which runs over a first guide device (24) on the first mast (20) and a second guide device (34) on the second mast (30). A carrier device (60) is coupled to the drive cable (50) and is movable along the suspension cable (40). A towing device (69) for towing a water sports athlete (11) is coupled to the carrier device (60).

Description

Water sports cable car

The present invention is directed to a watersports cable car for towing

Water skiers, wakeboarders and other water athletes directed over a water surface.

Waterskiing behind motorboats has been known since the first half of the 20th century. In the second half of the 20th century, water-ski ropeways and water-ski lifts were developed to avoid the high costs of the towing boat, driver and fuel. In addition to classic waterskiing (used as a pair or as a monoski), wakeboards (connected with the feet) and wakeskates (without binding to the feet) were developed. In the meantime, the wakeboard has largely replaced water skiing. In the following, the term water sports cableway is used as a generic term for aerial cableways for towing water athletes over water surfaces, regardless of whether the water sports person is towed over the water surface with one or two water skis, a wakeboard, a wakeskate, another water sports equipment or such ,

A typical watersports cable car includes four or more masts or props that are anchored in or on natural or artificial waters and overhang the surface of the water. At the upper ends of the masts one or more pulleys are attached in each case. One or more endless steel cables run over the

Pulleys on the upper ends of the masts. The endless steel cord (s) thus extend in the form of a polygon lying in a horizontal plane, whose corners are defined by the pulleys at the upper ends of the masts.

At the one or more endless steel cables one or more entrainment means for towing one or more water sports are arranged by means of a towing device. In particular, each towing device comprises a towline having a first end secured to the entrainment means and a hanger or handle for a water sportsman at the second end of the towline.

Furthermore, there is another type of watersports cable cars, in which one or more endless steel cables rotate between only two masts. Both types are circulating ropeways, in which a single circumferential rope or two parallel rotating ropes take on both a support and a drive function. Both types described have specific properties, advantages and disadvantages that predestine them for specific applications. In particular, conventionally, the second-mentioned type with only two masts is considered to be particularly suitable for practicing launch (from a platform or out of the water). Because of with

increasing distance between the masts and the pulleys rapidly increasing sag of the steel cable is the second-mentioned design for towing over longer

Distances, however, not suitable. On the other hand, however, it has a comparatively simple structure, which can enable fast and cost-effective assembly and disassembly and thus also a short-term use, for example in the context of a folk festival.

An object of the present invention is to provide an improved water sports cable car for towing a water sportsman over a water surface.

This object is solved by the subject matters of the independent claims.

Further developments are specified in the dependent claims.

As already mentioned, in a circulating cable car, a single, endless spliced, circulating cable assumes the function of both the carrying cable and the drive cable or traction cable. Recirculating ropeways with fixed clamped vehicles and above all circulating ropeways with vehicles that can be uncoupled from the rope and re-engaged, have largely displaced overhead cable cars in many areas. Even water sports cable cars were from the beginning exclusively circulating cable cars.

Embodiments of the present invention are based on the idea, contrary to this technically and economically well-founded general trend in a watersport cable car to separate the function of carrying and driving again. A stationary carrying cable carries and guides a carrier device, which is pulled by a drive cable along the carrying cable.

When designing a cable car or a cable car, a safety factor of 3 is to be observed with regard to the breaking load in the case of a suspension cable. In contrast, a safety factor of 5 is to be observed with a rotating rope. The use of a suspension cable and a separate drive cable allows the application of the much lower Safety factor 3 on the a significantly greater traction suspended suspension rope. The safety factor 5 only has to be applied to the drive cable subjected to a much lower tensile force. The cross-section and mass of the supporting cable can be correspondingly smaller by approximately 40% than in a corresponding conventional water-sports cableway in the design of a monocable circulating track.

A watersports cable car for towing a water sportsman over a

Water surface comprises a first mast and a second mast, a support cable, which is stretched between the first mast and the second mast, a drive cable, which runs over a first deflection on the first mast and a second deflection on the second mast, a driver device which with coupled to the drive cable and is movable along the support cable, and a towing device which is coupled to the entrainment device, for towing a water sportsman.

The water sports cable car is provided and designed in particular for towing a water sportsman who slides by means of a wakeboard, one or two water skis or one or more other water sports equipment or barefoot over the water surface. The water sports cableway may have two or more suspension ropes stretched between the first mast and the second mast.

The first deflecting device and the second deflecting device may each comprise one or more pulleys. The drive cable may be one or more parts, wherein two parts of the drive cable can be connected to each other by the driver. The deflection devices on the masts can be designed to deflect the drive cable in the vertical and / or in the horizontal direction by a predetermined angle. In particular, the deflection devices are designed and arranged in order to deflect the drive cable in each case by 180 °, so that the drive cable rotates in a narrow loop between the deflection devices on the two masts. Alternatively, the

Deflection devices each formed and arranged to deflect the drive cable between a horizontal direction to the respective other deflection and a vertical direction to a drive means at the foot of the associated mast. Alternatively, the deflection devices are designed so that the drive cable is deflected at the first deflection device by 180 ° and at the second deflection by a smaller angle down to a drive device near the foot of the second mast.

The entrainment device has one or more guide devices for guiding the entrainment device on the support cable or on the support cables. Each guide device comprises, for example, two or more guide rollers, between which the associated Carrying rope is guided. The entrainment means may be similar in some respects to the drive of a conventional shuttle cable car with one or more stationary suspension ropes. However, the entrainment device differs in particular in several features and properties described below from a conventional drive.

In particular, the towing device comprises a tow cable which connects the entrainment device with a hanger or a handle for the water sportsman. The tow rope can be rolled up in the entrainment device.

A watersports cable car, as described here, is designed in particular as a pendulum cable car.

In the training of water sports cable car as a cable car is the

Carrier device between two reversal points, which are located between the two masts, reciprocated. In this case, the direction of movement of the drive cable is reversed in each case if the driver device is located at or near one of the reversal points. In the training as a pendulum cable car, the water sports cable car differs not only from conventional water sports cable cars, which are typically designed as single or double cable circulating ropeways, but also of ski lifts that are used in alpine winter sports.

A watersports cable car, as described here, is designed in particular as a single-track aerial cable car.

Alternatively, a watersports cable car as described here is a two-lane one

Pendelseilbahn trained.

In a single-track aerial ropeway is only one lane of one or more support cables along which the driver device oscillates. In a two-lane aerial cableway, there are two lanes each consisting of one or more suspension ropes, one (or more) of which leans along each lane. In the case of a two-lane pendulum cable car, in particular both entrainment devices are driven by means of the same drive cable, so that they always move in opposite directions.

In a watersports cable car, as described here, the carrying cable is designed in particular as a plastic rope. In a watersports cable car, as described here, the drive cable is designed in particular as a plastic rope.

With a plastic rope is in particular a beaten or braided rope, which consists mainly or exclusively of plastic in terms of mass and / or cross-section. Particularly suitable plastic ropes are high-strength, highly crystalline, high-molecular weight and highly pre-stretched or highly pre-stretched ropes made of polyethylene and other plastics. Examples are Dyneema (Royal DSM N.V.) or other UHMWPE (ultra-high molecular weight polyethylene) products.

In particular, the design of the water sports cable car with one or more stationary suspension ropes and one or more drive cables allows the use of plastic ropes for suspension cable and / or drive cable, which have a larger horizontal bar than conventional steel ropes. In particular, this contributes to the fact that the resting ropes or cables do not have to be designed as endless ropes. This can be a compensation

Significantly simplify length change.

The formation of the water sports cable car as a pendulum cable helps to ensure that plastic ropes are used in spite of their higher deck instead of steel ropes. Above all, a compensation of the level of a plastic support cable or drive rope in the case of a design with one or more resting suspension cables and one or more

Drive cables much easier than in the case of a single-wire circulating cable car.

Plastic ropes can have a significantly lower mass with comparable strength and / or comparable breaking load. Together with the already mentioned advantage of the smaller break safety factor to be applied to stationary suspension ropes, a significant mass saving results. To achieve the same sag of the support and

Drive cables can be required a significantly lower tensile force. As a result, the entire water sports cable car including the masts and the tension weights can be designed with smaller cross-sections or lighter and therefore more cost-effective.

The lower mass of the suspension and drive cables (especially when using

Plastic cables) can contribute to the fact that lateral acceleration forces are lower, and vibrations can be significantly reduced.

Due to the lower mass compared to a steel rope of a plastic rope when using plastic ropes as support and / or drive cables also at comparable Slack a significantly greater length or a significantly greater distance between the two masts can be realized. While conventional two-masted water sports ropeways typically have a length of between 200m and 300m, this one is here

described water sports cable car according to first calculations a length of 400 m or more feasible. Thus, the water sports cable car is no longer just for practicing the start and for other simple exercises, but also for the operation of slalom or jump practice tracks. This is also helped by the fact that with a larger length a higher speed can be achieved.

Alternatively, the advantage of less sag can be used to provide shorter masts.

In a watersports cable car, as described here, the drive cable is in particular not designed as an endless rope.

In a water sports cable car, as described here, in particular both ends of the drive cable are connected to the entrainment device.

The drive cable thus runs in particular from the driver device, to which one end of the drive cable is fastened, via the first deflection device on the first mast and the second deflection device on the second mast, on which the drive cable is deflected by 180 °, to the carrier device on which the second end of the drive cable is attached. This can simplify both the manufacture and assembly as well as the compensation of a change in the length of the drive cable.

In a water sports cable car, in which both ends of the drive cable with the

Carrier means are connected, the entrainment means in particular a coil for receiving a part of variable length of the drive cable at a first end of the drive cable and a fastening device to which the second end of the drive cable is attached, on.

The fastening device may also have a coil for receiving a part of variable length of the drive cable at the second end of the drive cable. Optionally, both coils can be coupled, in particular rigidly connected or integrally formed. The coil or coils are designed in particular for receiving at least 30 m of the drive cable. The described embodiment of the entrainment device with one or more coils allows compensation for a change in length of the drive cable by the length of the part received by the coil or the lengths of the coils through the

recorded parts of the drive cable to be changed. In particular, a stretch of the drive cable can be compensated by a larger and larger part of the drive cable is taken up or wound on the coils. This contributes significantly to the usability of a plastic rope as drive cable with the advantages described.

A watersport cableway as described herein further includes, in particular, a support rope receiving means near the first mast or near the second mast connected to one end of the support rope, the support rope receiving means comprising a spool for receiving a part of variable length the carrying rope at one end of the supporting rope comprises.

The catenary-receiving device allows compensation of a riser of the support rope by the length of a portion or a portion of the support cable, which is received by the coil, is changed. The support cable receiving device thus supports the usability of a plastic rope as a supporting cable with the above-mentioned advantages.

A watersports cable car with a support cable on receiving device, as described here, further comprises in particular a clamping device between the supporting cable receiving device and one of the two masts.

Alternatively, the tensioning device is integrated with the supporting cable receiving device. The clamping device comprises in particular a chain hoist, a cable or a

Pulley.

In a watersports cable car, as described here, no support is provided in particular between the first mast and the second mast.

In particular, the use of one or more stationary suspension ropes and one or more moving drive cables and optionally the use of

Plastic ropes as a support cable and / or drive cable allows a greater length of the entire water sports cable car. This may eliminate the need for additional masts or pillars between the first mast and the second mast. By using only two masts or columns, not only the manufacture and assembly of the

Watersports cable car and in case of a transportable design also dismantling be simplified. Furthermore, all technical problems are avoided, which result when the entrainment device at the intended high

Speed over a support point of the or of the support cables ran.

A watersports cable car, as described here, further comprises in particular a further carrying cable, wherein the carrying cable and the further carrying cable are arranged in parallel, and wherein the entrainment device is guided on the carrying cable and on the further carrying cable.

In a water sports cable car with two support cables, as described here, in particular both support cables are arranged vertically or obliquely one above the other.

In conventional ropeways with two resting suspension ropes both suspension ropes are arranged horizontally next to each other. The arrangement of the two suspension ropes vertically one above the other or obliquely one above the other can have specific advantages in the case of a watersport cable car, in particular if by the water sports on the towing device and the

Carrier horizontal forces acting on the suspension cables.

Hereinafter, various embodiments will be described with reference to the accompanying figures. Show it:

Figure 1 is a schematic representation of a water sports cable car;

Figure 2 is a further schematic representation of the water sports cable car of Figure 1;

Figure 3 is a schematic sectional view of a supporting cable receiving device;

Figure 4 is a further schematic representation of the support cable receiving device

FIG. 3;

Figure 5 is a schematic representation of a deflection device;

Figure 6 is a schematic representation of a driver device.

1 shows a schematic representation of a water sports cable car 10 for towing a water sportsman 11 over a water surface 12 of a natural or artificial body of water 13. The plane of the figure 1 is vertical.

On the banks or on the banks of the water body 13, a first mast 20 and a second mast 30 are arranged. Lower ends 21, 31 of the masts 20, 30 are connected (in particular articulated) to foundations, not shown in FIG. 1, outside and / or inside the water body 13. Upper ends 22, 32 of the masts 20, 30 are connected by two parallel support cables 40, each having a first end 41 of each support cable 40 to the upper end 22 of the first mast 20 and a second end 42 of each support cable 40 to the upper end 32 of second mast 30 is connected. Details of this connection are described below with reference to FIGS. 2 and 5.

The upper end 22 of the first mast 20 is further connected by a vertical or substantially vertical tensioning cable 28 with a tension weight 29. The upper end 32 of the second mast 30 is connected by a vertical or substantially vertical tensioning cable 38 with a second tensioning weight 39. Both masts 20, 30 are inclined so that the weight of the tension weights 29, 39 causes a mechanical tension of the support cables 40. Notwithstanding the simplified illustration in FIG. 1, at least one of the two tensioning weights 29, 39 can be moved in the vertical direction and hangs on

This allows a constant or substantially constant mechanical tension of the supporting cables 40 even with a change in the length of the supporting cables 40 caused by temperature change or stretching and also in the case of vertical or horizontal deflection of the supporting cables 40.

A driver 60 is movable along the support cables 40 and connected for this purpose with a drive cable 50. A towing device 69 in the form of a

Tow rope with a handle or a strap at the bottom connects the

Carrier device 60 with the water sports 11.

Figure 2 shows an enlarged schematic representation of a portion of the water sports cableway 10 of Figure 1. The plane of Figure 2 is vertical and parallel to the plane of Figure 1. In Figure 2, only the first mast 20, the tensioning cable 28 between the upper end 22 of the first mast 20 and the first tensioning weight 29 and the support cables 40 are shown.

In Figure 2 it can be seen that the first mast 20 is formed as a lattice mast. In particular, the first mast 20 includes two legs arranged similarly to an "A" or an inverted "V". The two legs are indistinguishable in Figures 1 and 2, since they are arranged exactly behind the other or in cover due to the line of sight. The resulting wide base at the bottom or at the lower end 21 of the first mast 20 prevents the first mast 20 from tipping over in a direction perpendicular to the drawing planes of FIGS. 1 and 2.

Unlike in the more simplified illustration in FIG. 1, it can be seen in FIG. 2 that the first tensioning weight 29 hangs freely on the tensioning cable 28 in order to allow vertical mobility. A conversion 27 prevents people from getting under the first tension weight 29. Between the first ends 41 of the tensioning cables 40 and the upper end 22 of the first mast 20 (deviating from the simplified illustration in Figure 1) each have a support cable receiving device 70 and a clamping device 79 are arranged. Each tensioning device 79 is in particular a chain hoist, a cable or a pulley. Features and

Characteristics of the suspension cable receiving device 70 are described below with reference to Figures 3 and 4 in more detail.

FIG. 3 shows a schematic sectional view of one of the two carrying cable receiving devices 70 from FIG. 2. The sectional plane of FIG. 3 is parallel to the drawing planes of FIGS. 1 and 2 and parallel to the carrying cable 40 (compare FIGS. 1 and 2).

The support cable receiving device 70 comprises two parallel and substantially identical plates 71, one of which lies behind the sectional plane in FIG. 3 and is therefore shown. The two plates 71 are connected parallel to the sectional plane of Figure 3 and by a bolt 72 which is arranged perpendicular to the sectional plane of Figure 3. The bolt 72 is provided to allow a connection of the support cable receiving device 70 with the

Clamping device 79 (see Figure 2) by means of a short connecting cable 78 or alternatively by means of a chain or a rod or other tension member.

Furthermore, the support cable receiving device 70 comprises a coil 76 in the form of a hollow circular cylinder made of metal or plastic, whose axis of symmetry perpendicular to

Sectional plane of Figure 3 is. The spool 76 is provided to receive one or more turns, and more particularly up to about 30 meters of a support rope 40 (see Figures 1 and 2). Furthermore, the carrying cable receiving device 70 has a clamp 77 for clamping

Attachment of one end of the support rope.

FIG. 4 shows a further schematic representation of the carrying cable receiving device 70 from FIGS. 2 and 3. The drawing plane of FIG. 4 is perpendicular to the drawing planes of FIGS. 1 and 2, perpendicular to the sectional plane of FIG. 3 and parallel to the carrying cable 40 (see FIGS 1 and 2). Further, the plane of drawing of Figure 4 is perpendicular to the plates 71 and parallel to the axes of symmetry of the pin 72 and the spool 76. The pin 72 and spool 76 interconnect and are in particular bolted, welded or otherwise joined to the plates 71 ,

FIG. 5 shows a schematic illustration of the upper end 32 of the second mast 30. The plane of the drawing of FIG. 5 is parallel to the drawing planes of FIGS. 1 and 2, parallel to the sectional plane of FIG. 3 and perpendicular to the plane of the drawing of FIG. At the upper end 32 of the indicated in dashed line second mast 30, an anchor plate 33 is provided to which the second ends 42 of the support cables and the upper end of the tensioning cable 38 are attached. Furthermore, a deflection device 34 in the form of a deflection roller 35 for the drive cable 50 (see FIG. The second ends 42 of the support cables 40 are secured to the anchor plate 33 by means of molded plastic thimbles and the second deflection device 35 is arranged and supported on the anchor plate 33 in such a way that the two support cables 40 and the drive cable 50 substantially overlap one another in a vertical plane.

The first mast 20 (see Figures 1 and 2) has an anchor plate, which is similar to the anchor plate 33 shown in Figure 5 at the upper end 32 of the second mast 30 in particular in some features and properties. Notwithstanding the illustration in FIG. 5, a drive for the deflection roller is provided at the upper end 22 of the first mast 20,

in particular a synchronous or asynchronous three-phase motor whose speed and / or torque can be adjusted by an electronic control. Alternatively, that will

Drive cable 50 at the upper end 22 of the first mast 20 down to the bottom or the lower end 21 of the first mast 20 (see Figures 1, 2) deflected to be driven there. To drive the drive cable 50, a drive wheel with a rubber lining is provided in both cases in particular in order to prevent slippage between the drive wheel and the drive cable 50.

Alternatively or additionally, a drive for the drive cable 50 may be provided on the second mast 30, notwithstanding the illustration in FIG.

6 shows a schematic sectional representation of the entrainment device 60 from FIG. 1. The sectional plane of FIG. 6 is parallel to the drawing planes of FIGS. 1 and 2, parallel to the sectional plane of FIG. 3, perpendicular to the plane of the drawing of FIG. 4 and parallel to the plane of the drawing in FIG.

The driver 60 has two parallel plates 61 or substantially plate-shaped components, of which only one lies behind the sectional plane of Figure 6 and is therefore shown in Figure 6. Between the plates 61 guide rollers 64 are provided for guiding the driver 60 on the support cables 40 and guide rollers 65 for guiding the drive cable 50 in the driver 60.

Further, a coil 66 for receiving a portion of the drive cable 50 at one end, another coil 67 for receiving a further portion of the drive cable 50 at the other end and a terminal 68 for the end of the drive cable 50 is provided. The axes of symmetry and rotation of the guide rollers 64, 65 and the axes of symmetry of the coils 66, 67 are perpendicular to the sectional plane of Figure 6. The coils 66, 67 are each not rotatable in particular relative to the plates 61 but with these example, welded or screwed. Alternatively, the coils 66, 67 are detectable by clamping or otherwise relative to the plates 61.

In particular, the larger first coil 66 by means of a self-locking

Worm gear to be rotated to the length of one on the first coil 66th

wound part of the drive cable 50 to change. The second coil 67 is particularly fixed to receive only a small number of turns of the drive cable 50 to relieve the terminal 68.

The upper end of the towing device 69 (see Figure 1) is connected to the entrainment device 60. Notwithstanding the illustration in FIG. 6, a retractor with a spring can be provided in the entrainment device 60 for the towing device 69 in order to partially or completely receive the towing device 69 when it is not in use or does not have to transmit any tensile force.

If the lengths of the support cables 40 change due to a change in temperature or due to stretching, the number of turns of a support cable 40 on the spool 76 of the associated support cable receiver 70 may be varied. If the length of the drive cable 50 changes due to a change in temperature or due to stretching, the number of turns of the drive cable 50 on the spool 66 on the entrainment device 60 can be changed for compensation. The illustrated with reference to Figures 3 and 4 embodiment of the support cable receiving device 70 and the configuration of the entrainment device 60 shown in FIG 6 thus allow a simple and rapid compensation of changes in length of the support and drive cables 40, 50. Thus, the use of plastic ropes as Supporting and / or driving cables simplified or made possible, which have a greater horizontal bar than conventionally used steel cables. LIST OF REFERENCE NUMBERS

10 water sports cable car

11 water sports

12 water surface

13 waters

20 first mast

21 lower end of the first mast 20

22 upper end of the first mast 20

25 first deflection on the first mast 20

27 conversion

28 tensioning cable between the upper end 22 of the first mast 20 and the first tension weight 29th

29 first tension weight for the first mast 20

30 second mast

31 lower end of the second mast 30

32 upper end of the second mast 30th

33 anchor plate at the upper end 32 of the second mast 30th

35 second deflection on the second mast 30th

38 tensioning cable between upper end 32 of the second mast 30 and second

Tension weight 39

39 second tension weight for the second mast 30

40 carrying rope

41 first end of the support rope 40th

42 second end of the support cable 40th

50 drive rope

51 first end of the drive cable 50

52 second end of the drive cable 50th

60 entrainment device

61 plate

64 Guide roller for suspension rope 40

65 guide pulley for drive cable 50

66 coil on the driver 60 for receiving the drive cable 50th

67 coil

68 Terminal for end of drive cable 50

69 towing device

70 carrying cable receiving device

71 plate bolt

Coil on the carrying cable receiving device 70 for receiving the carrying cable 40 Terminal for the end of the carrying cable 40

Connecting cable between carrying cable receiving device 70 and clamping device 79 Clamping device for carrying cable 40

Claims

claims

1.

Water sports cable car (10) for towing a water sports person (11) over a water surface (12), comprising:

a first mast (20) and a second mast (30);

a support cable (40) tensioned between the first mast (20) and the second mast (30);

a drive cable (50) running on the first mast (20) via a first deflection device (24) and a second deflection device (34) on the second mast (30),

a driver device (60) which is coupled to the drive cable (50) and movable along the support cable (40);

a towing device (69), which is coupled to the entrainment device (60), for towing a water sportsman (11).

Second

Watersports cable car (10) according to the preceding claim, wherein the water sports cable car (10) is designed as a pendulum cable car.

Third

Watersports cable car (0) according to the preceding claim, wherein the water sports cable car (10) is designed as a single-track aerial cable car.

4th

Watersports cable car (10) according to one of the preceding claims, wherein the support cable (40) is designed as a plastic rope.

5th

Watersports cable car (0) according to one of the preceding claims, wherein the drive cable (50) is designed as a plastic rope.

6th

Watersports cable car (10) according to one of the preceding claims, wherein the drive cable (50) is not formed as an endless rope.

7th

Watersports cable car (10) according to the preceding claim, wherein both ends (51, 52) of the drive cable (50) are connected to the entrainment means (60).

8th.

Watersports cable car (10) according to the preceding claim, wherein the entrainment means (60)

a spool (66) for receiving a portion of variable length of the drive cable (50) at a first end (51) of the drive cable (50);

a fastening device (68) to which the second end (52) of the drive cable (50) is attached.

9th

A water sports cableway (10) according to any one of the preceding claims, further comprising:

a catenary receiving device (70) near the first mast (20) or near the second mast (30) connected to one end (42) of the support cable (40), the catenary receiving device (70) comprising a spool (76). for receiving a portion of variable length of the support rope (40) at one end (42) of the support rope (40).

10th

A watersport cableway (10) according to the preceding claim, further comprising:

a tensioning device (79) between the supporting cable receiving device (70) and the second mast (30).

11th

A water sports cableway (10) according to any one of the preceding claims, wherein no support is provided between the first mast (20) and the second mast (30).

12th

A watersports cable car (10) according to any one of the preceding claims, further comprising a further support cable (40), wherein the support cable (40) and the further support cables (40) are arranged in parallel, and wherein the entrainment means (60) on the support cable (40) and on the further support cable (40) is guided.

13th

Watersports cable car (10) according to the preceding claim, in which both supporting cables (40) are arranged vertically or obliquely one above the other.