Water sports apparatus comprising a water vehicle and use of a water vehicle

Abstract

A water sports apparatus (20) including a water vehicle (30) having a motorized, in particular electric, drive (36), wherein the water vehicle (30) is designed without an onboard steering device, wherein the water sports apparatus (20) includes a tether (40) for towing a water sports enthusiast (62) or a second water sports apparatus (64) along behind the water vehicle (30), wherein the water vehicle (30) includes a fastening device (38) for fastening the tether (40), wherein the tether (40) is fastened or can be fastened by one end to the fastening device (38), wherein the fastening device (38) is arranged in a stern-side half of the water vehicle (30), and wherein a handle (50) for a water sports enthusiast (62) or for a second water sports apparatus (64) is arranged, in particular fastened or fastenable, on another end of the tether (40).

What is claimed is: 
     
         1 . A water sports apparatus comprising a water vehicle having a motorized electric drive, wherein the water vehicle does not have an onboard steering device, wherein the water sports apparatus comprises a tether for towing a water sports enthusiast and/or a second water sports apparatus behind the water vehicle, wherein the water vehicle comprises a fastening device to which the tether is fastened at a first end, wherein the fastening device is arranged in a stern-side half of the water vehicle, and wherein a handle for the water sports enthusiast and/or for the second water sports apparatus is fastened to a second end of the tether. 
     
     
         2 . The water sports apparatus according to  claim 1 , wherein the water sports apparatus comprises an emergency stop device for stopping the water vehicle, wherein the emergency stop device comprises an emergency detector, wherein the emergency stop device is configured to stop the drive when the emergency detector is tripped. 
     
     
         3 . The water sports apparatus according to  claim 2 , wherein the emergency detector is configured to be tripped when a safety element is removed from a recess of the handle provided for said safety element. 
     
     
         4 . The water sports apparatus according to  claim 2 , wherein the emergency detector is arranged on or in the handle, wherein the emergency detector comprises a magnet having an effective range and a first reed switch, wherein the magnet is releasably arranged on the handle, wherein the first reed switch is arranged within the effective range of the magnet, wherein the first reed switch is contained in an emergency stop electrical circuit, wherein the first reed switch is configured to open the emergency stop electrical circuit when the magnet is removed from the first reed switch. 
     
     
         5 . The water sports apparatus according to  claim 4 , wherein the magnet is coupled to a fastening line that is configured to be fastenable to a wrist or item of clothing of the water sports enthusiast. 
     
     
         6 . The water sports apparatus according to  claim 4 , wherein the emergency stop device comprises a battery arranged in the handle or in the water vehicle for supplying voltage to the emergency stop electrical circuit. 
     
     
         7 . The water sports apparatus according to  claim 1 , wherein the drive is controllable by means of drive control signals, wherein a remote controller that is operable by the water sports enthusiast is provided for operating the water vehicle, wherein the drive control signals are transmittable to the drive by means of the remote controller. 
     
     
         8 . The water sports apparatus according to  claim 7 , wherein the handle comprises a recess for receiving the remote controller in the handle, and wherein the remote controller is releasably fastened to the handle. 
     
     
         9 . The water sports apparatus according to  claim 7 , wherein the drive control signals are transmittable at least partially wirelessly to the drive by means of the remote controller. 
     
     
         10 . The water sports apparatus according to  claim 2 , wherein the emergency stop device comprises an emergency stop effecting unit arranged on or in the water vehicle or in the handle, and wherein the emergency stop effecting unit is configured to detect whether the emergency detector has been tripped and to stop the drive ( 36 ) when the emergency detector is tripped. 
     
     
         11 . The water sports apparatus according to  claim 10 , wherein the emergency stop effecting unit comprises an electromagnet, wherein the electromagnet is contained in the emergency stop electrical circuit, wherein the emergency stop effecting unit comprises a reed sensor for the magnetic field of the electromagnet in order to detect when the emergency stop electrical circuit is open, and wherein the emergency stop effecting unit is configured to stop the drive when the emergency stop electrical circuit is detected to be open. 
     
     
         12 . The water sports apparatus according to  claim 11 , wherein the electromagnet is connected to the first reed switch by means of an emergency stop signal cable, wherein the emergency stop signal cable extends through the handle along the tether to the water vehicle. 
     
     
         13 . The water sports apparatus according to  claim 11 , wherein the electromagnet is fastened to or in the water vehicle by means of a flexible retaining lip. 
     
     
         14 . The water sports apparatus according to  claim 10 , wherein the remote controller is arranged in the handle, wherein the remote controller is connected to a drive control signal cable that extends along the tether, wherein the drive control signals are transmittable from the remote controller to the drive by means of the drive control signal cable, wherein the emergency stop effecting unit is arranged in the handle, wherein the emergency stop effecting unit is configured to prevent transmission of the drive control signals from the remote controller to the drive depending on whether the emergency detector is tripped. 
     
     
         15 . The water sports apparatus according to  claim 10 , wherein the emergency stop effecting unit is designed to receive a continuous emergency stop safety signal, wherein the emergency stop safety signal is sent from a safety signal sending unit contained in the emergency stop electrical circuit, and wherein the emergency stop effecting unit is configured to stop the drive when no emergency stop safety signal has been received for a predetermined period of time. 
     
     
         16 . The water sports apparatus according to  claim 1 , wherein the water vehicle has an upper face, wherein the fastening device of the water vehicle comprises a connection region of the tether to the fastening device for fastening the tether, wherein the fastening device is mounted in an elevated position on the upper face of the water vehicle in such a way that a predetermined lever effect is producible on the water vehicle by means of the tether. 
     
     
         17 . The water sports apparatus according to  claim 1 , wherein the handle comprises an integrated control element controllable by the water sports enthusiast, wherein the control element is configured to transmit drive control signals to the drive via a signal cable, wherein the signal cable extends from the control element inside the tether or outside along the tether in a direction toward the water vehicle. 
     
     
         18 . The water sports apparatus according to  claim 17 , wherein the control element comprises a lever and a deflection of the lever is detected by means of a Hall sensor of the control element in order to generate the drive control signals. 
     
     
         19 . The water sports apparatus according to  claim 1 , wherein the tether comprises a transmitter unit configured to transmit control signals wirelessly to a receiver unit of the water vehicle, and wherein the transmitter unit is configured to rest against the receiver unit of the water vehicle. 
     
     
         20 . The water sports apparatus according to  claim 19 , wherein the receiver unit of the water vehicle comprises an induction unit, and wherein the induction unit is configured to supply the transmitter unit, which rests against the receiver unit, with electric current by means of induction.