EP3728013B1 - Surfboard with handle - Google Patents

Surfboard with handle Download PDF

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Publication number
EP3728013B1
EP3728013B1 EP18827089.6A EP18827089A EP3728013B1 EP 3728013 B1 EP3728013 B1 EP 3728013B1 EP 18827089 A EP18827089 A EP 18827089A EP 3728013 B1 EP3728013 B1 EP 3728013B1
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EP
European Patent Office
Prior art keywords
handle
surfboard
rope
fastening means
surfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18827089.6A
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German (de)
French (fr)
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EP3728013A1 (en
EP3728013C0 (en
Inventor
Nicolai WEISENBURGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WBV Weisenburger Bau Verwaltung GmbH
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WBV Weisenburger Bau Verwaltung GmbH
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Publication of EP3728013A1 publication Critical patent/EP3728013A1/en
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Publication of EP3728013B1 publication Critical patent/EP3728013B1/en
Publication of EP3728013C0 publication Critical patent/EP3728013C0/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/10—Motor-propelled water sports boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/70—Accessories not specially adapted for a particular type of board, e.g. paddings or buoyancy elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction

Definitions

  • the invention relates to a surfboard with a tread and a drive for the surfboard, wherein one end of a rope is attached to the bow of the surfboard and another end of the rope has a handle.
  • Surfboards are of course well known. In English, surfboards are boards without a sail on which a surfer can ride by being pushed along by a wave. In German, this is called surfing.
  • the surfboard according to the invention is based on this sport.
  • the surfer stands on the surfboard and moves across the water preferably without propulsion caused by sails or waves.
  • KR 101767476 is a modular surfboard with a handle with a battery that can be charged separately.
  • the handle is inserted into one end of a rope, the other end of which is firmly attached to the bow of a surfboard.
  • a surfboard is disclosed with an internal combustion engine as propulsion and a handle that is firmly connected to a bow by means of a rope and that allows the user to keep his balance on the surfboard.
  • CN104309792A which is considered to be the closest prior art, discloses a surfboard powered by an internal combustion engine.
  • the surfboard is operated in three different configurations. It has an acute-angled L-shaped handle.
  • the disadvantage of the surfboard is that it is not very environmentally friendly and is ergonomically unfavorable.
  • the US6,192,817 B1 reveals a surfboard with an internal combustion engine and a throttle lever connected to a throttle cable.
  • the US$3,324,822 also concerns a surfboard with a throttle lever and a throttle cable that controls the propulsion of an internal combustion engine.
  • the DE 202011 051 071 U1 relates to a surfboard with an electric drive and a radio connection.
  • a hand-held controller includes a gyroscope function.
  • the surfboard has a drive for this purpose.
  • Surfboards with a drive are, for example, from the EN 20 2011 051 071 Powered surfboards are not dependent on high waves, but can also be used in calm waters with little surf. The surfer also does not need to stand on the surfboard and paddle, as he is propelled by the propulsion.
  • the surfboard according to the invention has an electric drive, preferably in the rear area of the surfboard; this is preferably a jet drive.
  • the jet drive has an opening on the underwater surface of the surfboard and a water channel that runs from the underwater surface to a nozzle on the rear end of the surfboard.
  • the nozzle can be designed to be pivotable or non-pivotable.
  • a rotor is provided in the water channel.
  • a rotor is understood to mean both a propeller and an impeller. The high speed of the rotor sucks water into the water channel and pushes it backwards out of the nozzle against the direction of travel, giving the surfboard the necessary propulsion.
  • the rotor is connected via a drive train to an electric motor that is supplied with power via a preferably replaceable battery.
  • the motor is also electrically connected according to the invention to a control that transmits control signals to the motor and thus controls the power of the drive, i.e. the speed of the surfboard.
  • the control receives
  • the surfboard preferably has an inflatable hull part and a drive unit.
  • the hull part can be made from a drop-stitch material.
  • the inflated hull part has a recess at the rear into which the drive unit can be detachably inserted.
  • the surfboard can also consist of a solid hull made from a non-inflatable material.
  • a drive for the surfboard preferably a jet drive, is provided in the drive unit or inside the hull.
  • the control is connected to a receiver in a signal-conducting manner, the receiver receives the signals from the transmitter of a radio remote control.
  • a handle has a throttle lever that is operatively connected to a transmitter of the radio remote control.
  • the transmitter is arranged in the handle, and by operating the throttle lever, electrical signals are generated and sent to the transmitter, which converts them into radio signals that can be received by the receiver and converted by the control into control signals for the drive.
  • a wireless connection obviously has the advantage over a cable connection that there are no cables that disturb the surfer and no hull openings are necessary for plug connections.
  • the handle is connected to the surfboard by means of a rope.
  • One end of the rope is attached to the bow and the other end of the rope is detachably connected to the handle.
  • the surfboard thus has two different types of construction.
  • the rope connected to the handle and board enables the surfer to advantageously keep his balance more easily.
  • By detaching the handle from the rope it is possible in the second type of construction to make surfing freer and more difficult for the surfer, as he has no pulling connection to the surfboard but instead holds the handle with the remote control freely in one hand and has to keep his balance without a rope.
  • one end of the rope is also detachably connected to the bow. By detaching both ends, the rope can be dispensed with completely and left on land while practicing the sport.
  • the controls of the surfboard are advantageously very easy to handle.
  • the radio remote control comprises an RC (remote control) radio remote control.
  • the RC radio remote control is a commercially available radio remote control, which is therefore inexpensive and proven.
  • RC radio remote controls that transmit radio signals using pulse modulation in the ISM band have proven to be particularly reliable in transmitting control values. Compared to amplitude modulation, pulse modulation in radio signal transmission is less susceptible to interference.
  • the transmission of radio signals is preferably in the 2.4 to 2.5 GHz ISM band. In principle, other ISM bands are also conceivable for transmitting radio signals.
  • the handle has a grip section for grasping with one hand of the surfer, wherein a center of force is arranged centrally in the grip section.
  • the surfer While practicing the sport, the surfer stands on the board's tread and grasping the handle of the rope attached to the bow can help the surfer maintain balance. In doing so, the surfer can exert a significant force through the handle on the rope and bow, which can be equal to his body weight or several times his body weight during short bursts of force.
  • one end of the rope is connected to the bow of the surfboard with a fastening means and/or another end of the rope is connected to the handle with another fastening means.
  • one end of the rope can be permanently or detachably attached to the bow and the other end of the rope can be permanently or detachably attached to the handle.
  • the fastening means and the additional fastening means can be removed without tools.
  • the fastening means and/or the additional fastening means advantageously have a snap lock so that the handles can be easily replaced and the rope and handle can be removed from the bow of the surfboard, and the handle can be used purely as a remote control without a rope.
  • the latter has the advantage that an experienced surfer who does not need the rope to maintain balance can use the handle as a radio remote control and then there is no potentially annoying rope.
  • a knot should also be provided for the fastening means and/or additional fastening means.
  • the additional fastening means for the other end of the rope is arranged at a distance vertically and centrally from the handle section.
  • a force center is created in the middle of the handle section when pulling, so that no torque acts on the wrist and the handle can be held by the surfer for longer.
  • the throttle lever is arranged in the handle in such a way that the surfer can operate the throttle lever with the hand with which he holds the handle and generates control values correlating with the position of the throttle lever.
  • the surfer can keep his balance on the surfboard and at the same time accelerate with the same hand.
  • the handle is preferably waterproof, as the surfer can fall off the board and the handle will fall into the water.
  • the handle preferably has an average density of p ⁇ 1 g/cm 3 so that it floats on the water.
  • the handle is triangular in shape with rounded corners along its outer circumference and is also essentially triangular in shape on the inside, with the handle section preferably being ergonomically designed.
  • Various Any shape for the handle is possible, for example semicircular, circular, oval shapes, etc.
  • the throttle lever is designed as a retractable push button in the handle section.
  • the push button can preferably be operated using the index finger.
  • the drive control has a movably arranged throttle lever that can be operated on the outside of the handle with the surfer's thumb.
  • the throttle lever can be arranged so that it can pivot about an axis and have a pressure surface that is placed in front of the thumb when the handle section is naturally gripped.
  • the throttle lever is arranged inside the handle.
  • the throttle lever can be conveniently operated with the surfer's index finger or middle finger.
  • Fig.1 shows a surfer 1 on a surfboard 2 according to the invention while practicing the sport.
  • a surfboard is understood here to be a device on which the surfer 1 stands, kneels or sits and floats on water 3 and which ideally has a buoyancy that is sufficient to carry the surfer 1. If necessary, the buoyancy can only be selected so large that, together with the propulsion of a drive, it is sufficient to carry the surfer.
  • the Surfboard 2 does not have a sail; in German, the sport would be classified as surfing.
  • the surfboard 2 comprises a bow 4 to which the rope 7 is attached with a preferably detachable fastening means 6.
  • a handle 8 is attached to the rope 7 with a preferably detachable fastening means 9.
  • the surfboard 2 has a jet drive 12 on a stern 11.
  • the jet drive 12 is only shown schematically here.
  • the jet drive 12 comprises an opening 13 for water inlet in an underwater surface of the surfboard 2 and a water channel 14 with a water outlet arranged on a front side of the stern 11.
  • the water outlet is designed as a nozzle 16, which can optionally be pivoted about an axis of rotation arranged vertically to a tread surface 17.
  • a rotor 18 is arranged in the water channel 14, which sprays the water penetrating the water channel 14 due to the weight of the surfer 1 out of the nozzle 16 and thereby gives the surfer 1 with the surfboard 2 propulsion.
  • a motor 19 for the rotor 18 is arranged in a hull of the surfboard 2, which drives the rotor 18 via a drive train 20, as well as a controller 21 for the motor 19, with which a power of the motor 19 can be controlled, in particular the speed of the surfboard 2 can be controlled. Both the motor 19 and the controller 21 are supplied with power via an accumulator 22.
  • the handle 8 is connected to the other end of the rope by the detachable additional fastening means 9.
  • the detachable additional fastening means 9 can, like the fastening means 6, be a fastener that can be opened without tools, in particular a Snap fastener or something similar.
  • a throttle lever 23 is integrated in the handle 8, which can be operated with one or more fingers and controls a transmitter 24 of a remote control in the handle 8.
  • the transmitter 24 interacts with a receiver 25 arranged on the control 21 and together forms the remote control.
  • a battery 26, which can be charged if necessary, can be arranged in the transmitter 24. In the case according to the invention, the remote control only controls the speed of the surfboard 2. Steering movements to the right and left are achieved here by shifting the weight of the surfer 1.
  • the handle 8 according to the invention must firstly fulfil the function that the surfer 1 can hold on to it with considerable force and that in particular no torque is generated on the wrist of the surfer 1. On the other hand, it must be possible to easily operate the throttle lever 23 when gripping.
  • Fig. 2a and Fig. 3a show a handle 8 not according to the invention, which is approximately triangular in shape with rounded corners in its outer and inner circumference and has an ergonomically shaped handle section 28.
  • the further fastening means 9 for the other end of the rope 7 is provided.
  • the rope 7 can be tied to the handle 8 with its other end.
  • the further fastening means 9 can also be designed as a snap fastener or something similar.
  • the throttle lever 23 which in this embodiment is designed as a push button 23.
  • the push button 23 is in Fig. 2a in a raised position, the neutral position, in which no gas is applied.
  • Fig. 3a the push button 23 is shown in a depressed position, the gas position.
  • the power of the motor 19 increases linearly with the depth of depression of the push button 23.
  • Fig. 3a shows the pressed push button 23. The hand of surfer 1 is not shown.
  • the push button 23 has a return mechanism, for example a return spring 29, which pushes it back into the neutral position when the handle 8 is released.
  • a return mechanism for example a return spring 29, which pushes it back into the neutral position when the handle 8 is released.
  • FIG.4 A second embodiment of the handle 8 according to the invention is shown.
  • the handle 8 is designed as in the first embodiment except for the throttle lever 23.
  • the Throttle lever 23 is arranged on the outside of the handle 8 so that it can pivot.
  • the throttle lever 23 is arranged on the outside of the handle 8.
  • a lever surface 23a is arranged on the throttle lever 23, pointing in the direction of the handle section 28.
  • the throttle lever 23 can be operated by pressing the lever surface 23a. It can be operated with the thumb of the surfer 1, who grips the handle 8 with his right hand. For surfers who prefer to hold the handle with their left hand, the direction of movement of the lever 23 can be reversed.
  • a third embodiment of the throttle lever 23 not according to the invention is shown.
  • the throttle lever 23 is again arranged inside the handle 8, specifically on a lateral connecting piece 30 between the further fastening means 9 and the handle section 28.
  • the throttle lever 23 is designed as a pivotable throttle lever 23 that can be pressed with the index finger of the surfer 1.
  • the throttle lever 23 performs a pivoting movement about a pivot point in the lateral connecting piece 30.
  • FIG.4 and Fig.5 are in the handle section 28 of the Fig.4 and Fig.5
  • a transmitter 24 (not shown) with a battery 26 is arranged. Only the mechanism for generating the control signals by operating the throttle lever 23 is designed differently; the electrical connection to the transmitter 24 and the transmitter are designed the same.
  • One of the return springs 29 is also expediently provided.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein Surfboard mit einer Trittfläche und einem Antrieb für das Surfboard, wobei ein Ende eines Seils am Bug des Surfboards befestigt ist und ein anderes Ende des Seils einen Griff aufweist.The invention relates to a surfboard with a tread and a drive for the surfboard, wherein one end of a rope is attached to the bow of the surfboard and another end of the rope has a handle.

Surfboards sind natürlich hinlänglich bekannt. Bei Surfboards handelt es sich im englischen Sprachgebrauch um Boards ohne Segel, auf dem ein Surfer durch den Vorschub einer Welle reiten kann. Im deutschen Sprachgebrauch spricht man hiervon Wellenreiten.Surfboards are of course well known. In English, surfboards are boards without a sail on which a surfer can ride by being pushed along by a wave. In German, this is called surfing.

Das erfindungsgemäße Surfboard baut auf dieser Sportart auf. Der Surfer steht auf dem Surfboard und fährt vorzugsweise ohne durch Segel oder Wellen verursachten Vortrieb über das Wasser.The surfboard according to the invention is based on this sport. The surfer stands on the surfboard and moves across the water preferably without propulsion caused by sails or waves.

In der KR 101767476 ist ein modulares Surfboard offenbart mit einem Griff mit Akkumulator, der separat geladen werden kann. Der Griff wird in ein Ende eines Seiles eingesteckt, dessen anderes Ende mit einem Bug eines Surfboards fest verbunden ist.In the KR 101767476 is a modular surfboard with a handle with a battery that can be charged separately. The handle is inserted into one end of a rope, the other end of which is firmly attached to the bow of a surfboard.

In der GB 1548892 ist ein Surfboard mit einem Verbrennungsmotor als Antrieb und einem Griff offenbart, der mittels eines Seils fest mit einem Bug verbunden ist und der es dem Benutzer ermöglicht, sein Gleichgewicht auf dem Surfboard zu halten.In the GB1548892 A surfboard is disclosed with an internal combustion engine as propulsion and a handle that is firmly connected to a bow by means of a rope and that allows the user to keep his balance on the surfboard.

In der CN 104309792 A , die als nächstkommender Stand der Technik angesehen wird, ist ein | mit einem Verbrennungsmotor angetriebenes Surfboard offenbart. Das Surfboard wird in drei verschiedenen Aufbauarten betrieben. Es weist einen spitzwinklig L-förmigen Griff auf. Nachteilig an dem Surfboard ist, dass es wenig umweltfreundlich und ergonomisch ungünstig ist.In the CN104309792A , which is considered to be the closest prior art, discloses a surfboard powered by an internal combustion engine. The surfboard is operated in three different configurations. It has an acute-angled L-shaped handle. The disadvantage of the surfboard is that it is not very environmentally friendly and is ergonomically unfavorable.

In der US2002/0056408 A1 ist ein Surfboard mit einem Gaskabel mit einem Griff an einem Ende für den Surfer offenbart. Das andere Ende des Gaskabels ist am Bug des Surfboards befestigt und mit einem Verbrennungsmotor verbunden.In the US2002/0056408 A1 is a surfboard with a throttle cable with a handle at one end revealed to the surfer. The other end of the throttle cable is attached to the bow of the surfboard and connected to an internal combustion engine.

Die US 6,192,817 B1 offenbart ein Surfboard mit einem Verbrennungsmotor und einem an einem Gaskabel angeredeten Gashebel.The US6,192,817 B1 reveals a surfboard with an internal combustion engine and a throttle lever connected to a throttle cable.

Die US 3,324,822 betrifft ebenfalls ein Surfboard mit einem Gashebel und einem Gaskabel, das den Vorschub eines Verbrennungsmotors steuert.The US$3,324,822 also concerns a surfboard with a throttle lever and a throttle cable that controls the propulsion of an internal combustion engine.

Die DE 202011 051 071 U1 betrifft ein Surfboard mit einem elektrischen Anrieb und einer Funkverbindung. Eine in der Hand gehaltene Steuerung umfasst eine Gyroskopfunktion.The DE 202011 051 071 U1 relates to a surfboard with an electric drive and a radio connection. A hand-held controller includes a gyroscope function.

Das Surfboard weist dazu einen Antrieb auf. Surfboards mit Antrieb sind beispielsweise aus der DE 20 2011 051 071 bekannt. Angetriebene Surfboards sind nicht auf hohen Wellengang angewiesen, sondern sie können auch in windstillen und brandungsarmen Gewässern benutzt werden. Der Surfer bracht auch nicht auf dem Surfboard stehend paddeln, da er seien Vortrieb durch den Antrieb erfährt.The surfboard has a drive for this purpose. Surfboards with a drive are, for example, from the EN 20 2011 051 071 Powered surfboards are not dependent on high waves, but can also be used in calm waters with little surf. The surfer also does not need to stand on the surfboard and paddle, as he is propelled by the propulsion.

Als problematisch hat sich die Steuerung des Vorschubs durch den Surfer erwiesen.Controlling the feed rate by the surfer has proven to be problematic.

Es ist daher Aufgabe der vorliegenden Erfindung, ein Surfboard zur Verfügung zu stellen, das den oben genannten Nachteil zumindest verringert.It is therefore an object of the present invention to provide a surfboard which at least reduces the above-mentioned disadvantage.

Die Aufgabe wird durch ein eingangs genanntes Surfboard mit den Merkmalen des Anspruchs 1 gelöst.The problem is solved by a surfboard as mentioned above with the features of claim 1.

Das erfindungsgemäße Surfboard weist einen elektrischen Antrieb, vorzugsweise im heckseitigen Bereich des Surfboards, auf; dabei handelt es sich vorzugsweise um einen Jetantrieb. Der Jetantrieb weist eine Öffnung an der Unterwasserfläche des Surfboards auf sowie einen Wasserkanal, der von der Unterwasserfläche zu einer Düse an der heckseitigen Stirnseite des Surfboards verläuft. Die Düse kann schwenkbar oder nicht schwenkbar ausgebildet sein. Im Wasserkanal ist ein Rotor vorgesehen. Unter einem Rotor ist sowohl ein Propeller als auch ein Impeller zu verstehen. Dabei wird durch die hohe Drehzahl des Rotors Wasser in den Wasserkanal hineingesaugt und nach hinten entgegen der Fahrtrichtung aus der Düse herausbefördert, wodurch dem Surfboard der nötige Vorschub verliehen wird. Der Rotor ist über einen Antriebsstrang mit einem Elektromotor verbunden, der über einen vorzugsweise austauschbaren Akkumulator mit Strom versorgt wird. Der Motor ist des Weiteren erfindungsgemäß mit einer Steuerung elektrisch leitend verbunden, die Steuersignale an den Motor übermittelt und somit die Leistung des Antriebs, also die Geschwindigkeit des Surfboards, steuert. Die Steuerung erhält die nötigen Steuersignale über eine vorzugsweise handgehaltene Fernbedienung.The surfboard according to the invention has an electric drive, preferably in the rear area of the surfboard; this is preferably a jet drive. The jet drive has an opening on the underwater surface of the surfboard and a water channel that runs from the underwater surface to a nozzle on the rear end of the surfboard. The nozzle can be designed to be pivotable or non-pivotable. A rotor is provided in the water channel. A rotor is understood to mean both a propeller and an impeller. The high speed of the rotor sucks water into the water channel and pushes it backwards out of the nozzle against the direction of travel, giving the surfboard the necessary propulsion. The rotor is connected via a drive train to an electric motor that is supplied with power via a preferably replaceable battery. The motor is also electrically connected according to the invention to a control that transmits control signals to the motor and thus controls the power of the drive, i.e. the speed of the surfboard. The control receives the necessary control signals via a preferably handheld remote control.

Vorzugsweise weist das Surfboard einen aufblasbaren Rumpfteil und eine Antriebseinheit auf. Das Rumpfteil kann aus einem Drop-Stitch Material gefertigt sein. Das aufgeblasene Rumpfteil weist eine Aussparung am Heck auf, in die die Antriebseinheit lösbar einsetzbar ist. Das Surfboard kann aber auch aus eine durchgehend festen Rumpf aus einem nicht aufblasbaren Material bestehen. In die Antriebseinheit oder im Innern des Rumpfes ist ein Antrieb für das Surfboard, vorzugsweise ein Jetantrieb, vorgesehen.The surfboard preferably has an inflatable hull part and a drive unit. The hull part can be made from a drop-stitch material. The inflated hull part has a recess at the rear into which the drive unit can be detachably inserted. The surfboard can also consist of a solid hull made from a non-inflatable material. A drive for the surfboard, preferably a jet drive, is provided in the drive unit or inside the hull.

Erfindungsgemäß ist die Steuerung mit einem Empfänger signalleitend verbunden, der Empfänger empfängt die Signale des Senders einer Funkfernbedienung. Ein Griff weist einen Gashebel auf, der mit einem Sender der Funkfernbedienung in Wirkverbindung steht. Der Sender ist im Griff angeordnet, und durch Betätigen des Gashebels werden elektrische Signale erzeugt und an den Sender abgegeben, der diese in Funksignale umwandelt, die vom Empfänger empfangbar und von der Steuerung in Steuersignale für den Antrieb umwandelbar sind.According to the invention, the control is connected to a receiver in a signal-conducting manner, the receiver receives the signals from the transmitter of a radio remote control. A handle has a throttle lever that is operatively connected to a transmitter of the radio remote control. The transmitter is arranged in the handle, and by operating the throttle lever, electrical signals are generated and sent to the transmitter, which converts them into radio signals that can be received by the receiver and converted by the control into control signals for the drive.

Eine Funkverbindung hat gegenüber einer Kabelverbindung natürlich den Vorteil, dass keine den Surfer störenden Kabel vorhanden sind und keine Rumpfdurchbrüche für Steckverbindungen notwendig sind.A wireless connection obviously has the advantage over a cable connection that there are no cables that disturb the surfer and no hull openings are necessary for plug connections.

Erfindungsgemäß ist der Griff mittels eines Seils mit dem Surfboard verbunden. Ein Ende des Seils ist am Bug befestigt und ein anderes Ende des Seils ist lösbar mit dem Griff verbunden. Das Surfboard hat somit zwei verschiedene Aufbauarten. Das in der ersten Aufbauart mit dem Griff und Board verbundene Seil ermöglicht es dem Surfer, vorteilhafterwiese leichter sein Gleichgewicht zu halten. Durch das Lösen des Griffs vom Seil ist es in der zweiten Aufbauart möglich, das Surfen für den Surfer freier und schwieriger zu gestalten, indem er keine Zugverbindung zum Surfboard hat sondern den Griff mit der Fernbedienung frei in einer Hand hält und sein Gleichgewicht ohne Seil halten muss.According to the invention, the handle is connected to the surfboard by means of a rope. One end of the rope is attached to the bow and the other end of the rope is detachably connected to the handle. The surfboard thus has two different types of construction. In the first type of construction, the rope connected to the handle and board enables the surfer to advantageously keep his balance more easily. By detaching the handle from the rope, it is possible in the second type of construction to make surfing freer and more difficult for the surfer, as he has no pulling connection to the surfboard but instead holds the handle with the remote control freely in one hand and has to keep his balance without a rope.

Günstigerweise ist auch das eine Ende des Seils lösbar mit dem Bug verbunden. Durch Lösen beider Enden kann auf das Seil vollständig verzichtet werden, und es kann während der Ausübung des Sportes an Land gelassen werden.Conveniently, one end of the rope is also detachably connected to the bow. By detaching both ends, the rope can be dispensed with completely and left on land while practicing the sport.

Die Steuerung des Surfboards ist vorteilhafterweise sehr einfach handhabbar gehalten.The controls of the surfboard are advantageously very easy to handle.

Vorzugsweise umfasst die Funkfernbedienung eine RC-(Remote-Control) Funkfernbedienung. Bei der RC-Funkfernbedienung handelt es sich um eine handelsübliche Funkfernbedienung, die daher kostengünstig erhältlich und bewährt ist.Preferably, the radio remote control comprises an RC (remote control) radio remote control. The RC radio remote control is a commercially available radio remote control, which is therefore inexpensive and proven.

Als besonders zuverlässig in der Übertragung der Steuerwerte haben sich RC-Funkfernbedienungen erwiesen, die Funksignale durch Pulsmodulation im ISM Band übertragen. Gegenüber Amplitudenmodulation ist Pulsmodulation in der Funksignalübertragung weniger störanfällig. Günstigerweise liegt die Übertragung der Funksignale im 2,4 bis 2,5 GHz ISM Band. Grundsätzlich sind auch andere ISM Bänder zur Übertragung der Funksignale denkbar.RC radio remote controls that transmit radio signals using pulse modulation in the ISM band have proven to be particularly reliable in transmitting control values. Compared to amplitude modulation, pulse modulation in radio signal transmission is less susceptible to interference. The transmission of radio signals is preferably in the 2.4 to 2.5 GHz ISM band. In principle, other ISM bands are also conceivable for transmitting radio signals.

Vorzugsweise weist der Griff einen Griffabschnitt zum Umgreifen mit einer Hand des Surfers auf, wobei ein Kraftschwerpunkt mittig im Griffabschnitt angeordnet ist.Preferably, the handle has a grip section for grasping with one hand of the surfer, wherein a center of force is arranged centrally in the grip section.

Während der Ausübung des Sports steht der Surfer auf der Trittfläche des Surfboards und das Greifen des Griffes des am Bug befestigten Seils kann dem Surfer beim Halten seines Gleichgewichts helfen. Dabei kann er eine erhebliche Kraft über den Griff auf das Seil und den Bug ausüben, die seinem Körpergewicht bzw. einem Mehrfachen seines Körpergewichts während kurzer Kraftspitzen entsprechen kann.While practicing the sport, the surfer stands on the board's tread and grasping the handle of the rope attached to the bow can help the surfer maintain balance. In doing so, the surfer can exert a significant force through the handle on the rope and bow, which can be equal to his body weight or several times his body weight during short bursts of force.

Vorzugsweise ist ein Ende des Seils mit einem Befestigungsmittel mit dem Bug des Surfboards und/oder ein anderes Ende des Seils ist mit einem weiteren Befestigungsmittel mit dem Griff verbunden. Das eine Seilende kann also dauerhaft oder lösbar am Bug befestigt sein und das Seil kann mit dem anderen Seilende dauerhaft oder lösbar an dem Griff befestigt sein.Preferably, one end of the rope is connected to the bow of the surfboard with a fastening means and/or another end of the rope is connected to the handle with another fastening means. Thus, one end of the rope can be permanently or detachably attached to the bow and the other end of the rope can be permanently or detachably attached to the handle.

Vorzugsweise sind das Befestigungsmittel und das weitere Befestigungsmittel werkzeuglos lösbar. Günstigerweise weist das Befestigungsmittel und/oder das weitere Befestigungsmittel einen Schnappverschluss auf, so dass die Griffe leicht ausgewechselt werden können und Seil und Griff vom Bug des Surfboards entfernt werden können, sowie der Griff als reine Fernbedienung ohne Seil verwendet werden kann. Letzteres hat den Vorteil, dass ein geübter Surfer, der das Seil nicht zum Halten des Gleichgewichts benötigt, den Griff als Funkfernbedienung verwenden kann, und dann kein ggf. störendes Seil vorhanden ist. Als Befestigungsmittel und/oder weiteres Befestigungsmittel auch jeweils ein Knoten zur vorgesehen sein.Preferably, the fastening means and the additional fastening means can be removed without tools. The fastening means and/or the additional fastening means advantageously have a snap lock so that the handles can be easily replaced and the rope and handle can be removed from the bow of the surfboard, and the handle can be used purely as a remote control without a rope. The latter has the advantage that an experienced surfer who does not need the rope to maintain balance can use the handle as a radio remote control and then there is no potentially annoying rope. A knot should also be provided for the fastening means and/or additional fastening means.

Vorzugsweise ist das weitere Befestigungsmittel für das andere Ende des Seils in einem Abstand senkrecht und mittig vom Griffabschnitt angeordnet. Durch Greifen des Griffabschnittes entsteht beim Ziehen ein Kraftschwerpunkt mittig im Griffabschnitt, sodass keine Drehmomente auf das Handgelenk wirken und der Griff auch länger vom Surfer gehalten werden kann.Preferably, the additional fastening means for the other end of the rope is arranged at a distance vertically and centrally from the handle section. By gripping the handle section, a force center is created in the middle of the handle section when pulling, so that no torque acts on the wrist and the handle can be held by the surfer for longer.

Der Gashebel ist im Griff derart angeordnet, dass der Surfer mit der einen Hand, mit der er den Griff hält, den Gashebel betätigen kann und mit der Stellung des Gashebels korrelierende Steuerwerte erzeugt.The throttle lever is arranged in the handle in such a way that the surfer can operate the throttle lever with the hand with which he holds the handle and generates control values correlating with the position of the throttle lever.

Vorteilhafterweise kann der Surfer durch festes Halten des Griffs zum einen sein Gleichgewicht gut auf dem Surfboard halten und zum anderen mit derselben Hand auch gelichzeitig Gas geben.Advantageously, by holding the handle firmly, the surfer can keep his balance on the surfboard and at the same time accelerate with the same hand.

Vorzugsweise ist der Griff wasserdicht ausgebildet, da der Surfer auch vom Brett fallen kann, so dass der Griff dabei ins Wasser fällt. Aus diesem Grunde weist der Griff vorzugsweise auch eine durchschnittliche Dichte von p<1 g/ cm3 auf, so dass er auf dem Wasser aufschwimmt.The handle is preferably waterproof, as the surfer can fall off the board and the handle will fall into the water. For this reason, the handle preferably has an average density of p<1 g/cm 3 so that it floats on the water.

Der Griff ist erfindungsgemäß entlang seines äußeren Umfangs dreieckförmig mit abgerundeten Ecken ausgebildet und im Inneren ebenfalls im Wesentlichen dreieckförmig, wobei der Griffabschnitt vorzugsweise ergonomisch ausgebildet ist. Es sind verschiedene Form für den Griff denkbar, beispielsweise auch halbkreisförmige, kreisförmige, ovale Formen usw.According to the invention, the handle is triangular in shape with rounded corners along its outer circumference and is also essentially triangular in shape on the inside, with the handle section preferably being ergonomically designed. Various Any shape for the handle is possible, for example semicircular, circular, oval shapes, etc.

In einer ersten nicht erfindungsgemäßen Ausführungsform ist der Gashebel als versenkbarer Druckknopf im Griffabschnitt ausgebildet. Hier ist der Druckknopf vorzugsweise mittels des Zeigefingers bedienbar.In a first embodiment not according to the invention, the throttle lever is designed as a retractable push button in the handle section. Here, the push button can preferably be operated using the index finger.

In einer zweiten erfindungsgemäßen Ausführungsform der Erfindung weist die Antriebssteuerung einen beweglich angeordneten Gashebel auf, der außen am Griff mit einem Daumen des Surfers betätigbar ist. Der Gashebel kann schwenkbar um eine Achse angeordnet sein und eine Druckfläche aufweisen, die bei natürlichem Greifen des Griffabschnitts vor dem Daumen platziert ist.In a second embodiment of the invention, the drive control has a movably arranged throttle lever that can be operated on the outside of the handle with the surfer's thumb. The throttle lever can be arranged so that it can pivot about an axis and have a pressure surface that is placed in front of the thumb when the handle section is naturally gripped.

In einer dritten nicht erfindungsgemäßen Ausführungsform ist der Gashebel innen im Griff angeordnet. Dabei ist der Gashebel günstigerweise mit dem Zeigefinger oder Mittelfinger des Surfers bedienbar.In a third embodiment not according to the invention, the throttle lever is arranged inside the handle. The throttle lever can be conveniently operated with the surfer's index finger or middle finger.

Die Erfindung wird anhand von einem Ausführungsbeispiel in sieben Figuren beschrieben. Dabei zeigen:

Fig. 1
eine schematische Ansicht eines erfindungsgemäßen Surfboards mit erfindungsgemäßer Antriebssteuerung im Griff,
Fig. 2a
einen nicht erfindungsgemäßen Griff in einer ersten Ausführungsform des Gashebels in einer Neutralstellung,
Fig. 2b
Detailansicht in Fig. 2a,
Fig. 3a
einen Griff in der ersten nicht erfindungsgemäßen Ausführungsform des Gashebels in einer Gasstellung,
Fig. 3b
Detailansicht in Fig. 3a,
Fig. 4
einen Griff mit in einer zweiten erfindungsgemäßen Ausführungsform einer Antriebssteuerung,
Fig. 5
einen Griff mit einer dritten nicht erfindungsgemäßen Ausführungsform einer Antriebssteuerung.
The invention is described using an embodiment in seven figures.
Fig.1
a schematic view of a surfboard according to the invention with a drive control according to the invention in the handle,
Fig. 2a
a handle not according to the invention in a first embodiment of the throttle lever in a neutral position,
Fig. 2b
Detailed view in Fig. 2a ,
Fig. 3a
a handle in the first embodiment of the throttle lever not according to the invention in a throttle position,
Fig. 3b
Detailed view in Fig. 3a ,
Fig.4
a handle with a drive control in a second embodiment according to the invention ,
Fig.5
a handle with a third embodiment of a drive control not according to the invention .

Fig. 1 zeigt einen Surfer 1 auf einem erfindungsgemäßen Surfboard 2 in Ausübung des Sports. Grundsätzlich ist hier unter einem Surfboard eine Vorrichtung zu verstehen, auf der der Surfer 1 steht, kniet oder sitzt und auf einem Wasser 3 aufschwimmt und die idealerweise einen Auftrieb hat, der hinreichend ist, den Surfer 1 zu tragen. Gegebenenfalls kann der Auftrieb nur so groß gewählt werden, dass er zusammen mit dem Vorschub eines Antriebs ausreicht, den Surfer zu tragen. Fig.1 shows a surfer 1 on a surfboard 2 according to the invention while practicing the sport. Basically, a surfboard is understood here to be a device on which the surfer 1 stands, kneels or sits and floats on water 3 and which ideally has a buoyancy that is sufficient to carry the surfer 1. If necessary, the buoyancy can only be selected so large that, together with the propulsion of a drive, it is sufficient to carry the surfer.

Das Surfboard 2 weist kein Segel auf; im deutschen Sprachgebrauch würde man den Sport eher als Wellenreiten klassifizieren.The Surfboard 2 does not have a sail; in German, the sport would be classified as surfing.

Das Surfboard 2 umfasst einen Bug 4, an dem das Seil 7 mit einem vorzugsweise lösbaren Befestigungsmittel 6 befestigt ist. An einem anderen Ende des Seils 7 ist ein Griff 8 mit einem vorzugsweise lösbaren Befestigungsmittel 9 am Seil 7 befestigt.The surfboard 2 comprises a bow 4 to which the rope 7 is attached with a preferably detachable fastening means 6. At another end of the rope 7, a handle 8 is attached to the rope 7 with a preferably detachable fastening means 9.

Das Surfboard 2 weist an einem Heck 11 einen Jetantrieb 12 auf. Der Jetantrieb 12 ist hier nur schematisch dargestellt. Der Jetantrieb 12 umfasst eine Öffnung 13 zum Wassereinlass in einer Unterwasserfläche des Surfboards 2 und einen Wasserkanal 14 mit einem an einer Stirnseite des Hecks 11 angeordneten Wasserauslass. Der Wasserauslass ist als Düse 16 ausgebildet, die gegebenenfalls schwenkbar um eine vertikal zu einer Trittfläche 17 angeordneten Drehachse drehbar ist. Im Wasserkanal 14 ist ein Rotor 18 angeordnet, der das durch das Gewicht des Surfers 1 in den Wasserkanal 14 eindringende Wasser aus der Düse 16 herausspritzt und dem Surfer 1 mit dem Surfboard 2 dadurch einen Vortrieb verleiht. In einem Rumpf des Surfboards 2 ist ein Motor 19 für den Rotor 18 angeordnet, der den Rotor 18 über einen Antriebsstrang 20 antreibt, sowie eine Steuerung 21 für den Motor 19, mit der eine Leistung des Motors 19 gesteuert werden kann, insbesondere kann damit die Geschwindigkeit des Surfboards 2 gesteuert werden. Sowohl der Motor 19 als auch die Steuerung 21 sind über einen Akkumulator 22 mit Strom versorgt.The surfboard 2 has a jet drive 12 on a stern 11. The jet drive 12 is only shown schematically here. The jet drive 12 comprises an opening 13 for water inlet in an underwater surface of the surfboard 2 and a water channel 14 with a water outlet arranged on a front side of the stern 11. The water outlet is designed as a nozzle 16, which can optionally be pivoted about an axis of rotation arranged vertically to a tread surface 17. A rotor 18 is arranged in the water channel 14, which sprays the water penetrating the water channel 14 due to the weight of the surfer 1 out of the nozzle 16 and thereby gives the surfer 1 with the surfboard 2 propulsion. A motor 19 for the rotor 18 is arranged in a hull of the surfboard 2, which drives the rotor 18 via a drive train 20, as well as a controller 21 for the motor 19, with which a power of the motor 19 can be controlled, in particular the speed of the surfboard 2 can be controlled. Both the motor 19 and the controller 21 are supplied with power via an accumulator 22.

Beim Surfen greift der Surfer 1 den Griff 8 des Surfboards 2 mit einer Hand. Es hat sich gezeigt, dass es dadurch für den Surfer 1 deutlich leichter ist, auf dem Surfboard 2 auch während der relativ schnellen Kurvenfahrten und Fahrten über Wellen sein Gleichgewicht zu halten. Der Griff 8 ist mit dem lösbaren weiteren Befestigungsmittel 9 mit dem anderen Seilende verbunden. Bei dem lösbaren weiteren Befestigungsmittel 9 kann es sich wie auch bei dem Befestigungsmittel 6 um einen werkzeuglos öffenbaren Versschluss, insbesondere einen Schnappverschluss oder Ähnliches handeln. In dem Griff 8 ist ein Gashebel 23 integriert, der mit einem Finger oder mehreren Fingern bedienbar ist und einen Sender 24 einer Fernbedienung im Griff 8 steuert. Der Sender 24 wirkt mit einem an der Steuerung 21 angeordneten Empfänger 25 zusammen und bildet zusammen die Fernbedienung aus. Im Sender 24 kann eine gegebenenfalls ladbare Batterie 26 angeordnet sein. Die Fernbedienung steuert im erfindungsgemäßen Fall ausschließlich die Geschwindigkeit des Surfboards 2. Lenkbewegungen nach rechts und links werden hier durch Gewichtverlagerung des Surfers 1 erzielt.When surfing, the surfer 1 grips the handle 8 of the surfboard 2 with one hand. It has been shown that this makes it significantly easier for the surfer 1 to keep his balance on the surfboard 2, even during relatively fast cornering and riding over waves. The handle 8 is connected to the other end of the rope by the detachable additional fastening means 9. The detachable additional fastening means 9 can, like the fastening means 6, be a fastener that can be opened without tools, in particular a Snap fastener or something similar. A throttle lever 23 is integrated in the handle 8, which can be operated with one or more fingers and controls a transmitter 24 of a remote control in the handle 8. The transmitter 24 interacts with a receiver 25 arranged on the control 21 and together forms the remote control. A battery 26, which can be charged if necessary, can be arranged in the transmitter 24. In the case according to the invention, the remote control only controls the speed of the surfboard 2. Steering movements to the right and left are achieved here by shifting the weight of the surfer 1.

Der erfindungsgemäße Griff 8 muss zum einen die Funktion erfüllen, dass sich der Surfer 1 mit erheblicher Kraft an ihm festhalten kann und dass es dabei insbesondere zu keiner Ausbildung von Drehmomenten auf das Handgelenk des Surfers 1 kommt. Zum anderen muss beim Greifen eine leichte Bedienung des Gashebels 23 möglich sein.The handle 8 according to the invention must firstly fulfil the function that the surfer 1 can hold on to it with considerable force and that in particular no torque is generated on the wrist of the surfer 1. On the other hand, it must be possible to easily operate the throttle lever 23 when gripping.

Fig. 2a und Fig. 3a zeigen einen nicht erfindungsgemäßen Griff 8, der in seinem äußeren und inneren Umfang etwa dreieckförmig mit abgerundeten Ecken ausgebildet ist und einen ergonomisch geformten Griffabschnitt 28 aufweist. Etwa mittig des Griffabschnittes 28, senkrecht dem Griffabschnitt 28 gegenüberliegend, ist das weitere Befestigungsmittel 9 für das andere Ende des Seils 7 vorgesehen. Das Seil 7 kann mit seinem anderen Ende an dem Griff 8 festgeknotet sein. Das weitere Befestigungsmittel 9 kann aber auch als Schnappverschluss oder Ähnliches ausgebildet sein. Beim Greifen des Griffes 8 mit der Handfläche wird der erhabene nach innen weisende Bereich des Griffabschnitts 28 mit der Handfläche umfasst. Im dicksten Bereich des Griffabschnitts 28 wird der Kraftschwerpunkt durch die vom Surfer 1 ausgeübte Zugkraft ausgebildet. Beim Greifen liegt der Zeigefinger auf dem in dieser Ausführungsform als Druckknopf 23 ausgebildeten Gashebel 23 auf. Der Druckknopf 23 ist in Fig. 2a in einer erhabenen Stellung, der Neutralstellung, dargestellt, in der kein Gas gegeben wird. In Fig. 3a ist der Druckknopf 23 in einer eingedrückten Stellung, der Gasstellung, dargestellt. Die Leistung des Motors 19 wird linear mit der Eindrücktiefe des Druckknopfes 23 erhöht. Es sind natürlich auch andere funktionale Zusammenhänge zwischen Eindrücktiefe und Motorleistung denkbar. Fig. 3a zeigt den eingedrückten Druckknopf 23. Die Hand des Surfers 1 ist nicht dargestellt. Fig. 2a and Fig. 3a show a handle 8 not according to the invention, which is approximately triangular in shape with rounded corners in its outer and inner circumference and has an ergonomically shaped handle section 28. Approximately in the middle of the handle section 28, perpendicularly opposite the handle section 28, the further fastening means 9 for the other end of the rope 7 is provided. The rope 7 can be tied to the handle 8 with its other end. The further fastening means 9 can also be designed as a snap fastener or something similar. When gripping the handle 8 with the palm of the hand, the raised inward-facing area of the handle section 28 is grasped with the palm of the hand. In the thickest area of the handle section 28, the center of force is formed by the pulling force exerted by the surfer 1. When gripping, the index finger rests on the throttle lever 23, which in this embodiment is designed as a push button 23. The push button 23 is in Fig. 2a in a raised position, the neutral position, in which no gas is applied. In Fig. 3a the push button 23 is shown in a depressed position, the gas position. The power of the motor 19 increases linearly with the depth of depression of the push button 23. Of course, other functional relationships between the depth of depression and motor power are also conceivable. Fig. 3a shows the pressed push button 23. The hand of surfer 1 is not shown.

Der Druckknopf 23 weist einen Rückstellmechanismus, beispielsweise eine Rückstellfeder 29 auf, die ihn in die Neutralstellung beim Loslassen des Griffes 8 zurückdrückt.The push button 23 has a return mechanism, for example a return spring 29, which pushes it back into the neutral position when the handle 8 is released.

In Fig. 4 ist eine zweite Ausführungsform des erfindungsgemäßen Griffes 8 dargestellt. Der Griff 8 ist bis auf den Gashebel 23 wie in der ersten Ausführungsform ausgebildet. Dort ist der Gashebel 23 außen am Griff 8 schwenkbar angeordnet. Der Gashebel 23 ist außen seitlich am Griff 8 angeordnet. An einem dem anderen Seilende abgewandten Bereich des Griffabschnitts 28 ist eine in Richtung des Griffabschnitts 28 weisende Hebelfläche 23a am Gashebel 23 angeordnet. Der Gashebel 23 kann durch Drücken der Hebelfläche 23a bedient werden. Sie wird mit dem Daumen des Surfers 1, der den Griff 8 mit seiner rechten Hand greift, bedienbar. Bei Surfern, die den Griff bevorzugt mit der linken Hand halten kann die Bewegungsrichtung des Hebels 23 umgekehrt sein.In Fig.4 A second embodiment of the handle 8 according to the invention is shown. The handle 8 is designed as in the first embodiment except for the throttle lever 23. There, the Throttle lever 23 is arranged on the outside of the handle 8 so that it can pivot. The throttle lever 23 is arranged on the outside of the handle 8. In an area of the handle section 28 facing away from the other end of the rope, a lever surface 23a is arranged on the throttle lever 23, pointing in the direction of the handle section 28. The throttle lever 23 can be operated by pressing the lever surface 23a. It can be operated with the thumb of the surfer 1, who grips the handle 8 with his right hand. For surfers who prefer to hold the handle with their left hand, the direction of movement of the lever 23 can be reversed.

In der Fig. 5 ist eine dritte Ausführungsform des nicht erfindungsgemäßen Gashebels 23 dargestellt. Der Gashebel 23 ist hier wiederum im Inneren des Griffes 8 angeordnet, und zwar an einem seitlichen Verbindungsstück 30 zwischen dem weiteren Befestigungsmittel 9 und dem Griffabschnitt 28. Der Gashebel 23 ist als verschwenkbarer Gashebel 23 ausgebildet, der mit dem Zeigefinger des Surfers 1 gedrückt werden kann. Der Gashebel 23 führt eine Schwenkbewegung um einen Drehpunkt im seitlichen Verbindungsstück 30 aus.In the Fig.5 a third embodiment of the throttle lever 23 not according to the invention is shown. The throttle lever 23 is again arranged inside the handle 8, specifically on a lateral connecting piece 30 between the further fastening means 9 and the handle section 28. The throttle lever 23 is designed as a pivotable throttle lever 23 that can be pressed with the index finger of the surfer 1. The throttle lever 23 performs a pivoting movement about a pivot point in the lateral connecting piece 30.

Auch in den Ausführungsformen gemäß Fig. 4 und Fig. 5 ist im Griffabschnitt 28 der in Fig. 4 und Fig. 5 nicht dargestellte Sender 24 mit der Batterie 26 angeordnet. Lediglich die Mechanik zur Erzeugung der Steuersignale durch Betätigen des Gashebels 23 ist unterschiedlich ausgebildet; die elektrische Verbindung zum Sender 24 und der Sender sind gleich ausgebildet. Es ist zweckmäßigerweise auch jeweils eine der Rückstellfedern 29 vorgesehen.Also in the embodiments according to Fig.4 and Fig.5 is in the handle section 28 of the Fig.4 and Fig.5 A transmitter 24 (not shown) with a battery 26 is arranged. Only the mechanism for generating the control signals by operating the throttle lever 23 is designed differently; the electrical connection to the transmitter 24 and the transmitter are designed the same. One of the return springs 29 is also expediently provided.

Claims (10)

  1. Surfboard with
    a deck (17),
    an electrical drive for the surfboard (2), wherein
    one end of a rope (7) is fastened to the bow (4) of the surfboard (2) and
    another end of the rope (7) has a handle (8),
    whereat
    the drive is connected to a controller (21), which comprises a receiver (25) of a wireless remote control, and
    the handle (8) has an accelerator lever (23) which is connected to a transmitter (24) of the wireless remote control in a data conducting manner, and
    the transmitter (24) is arranged in the handle (8) and
    by actuation of the accelerator lever (23) control signals can be generated, which can be transmitted by the transmitter (24) as wireless signals and can be received by the receiver (25) and can be converted by the controller (21) into control values for the drive and the one end of the rope (7) can be releasably fastened to the bow (4) and the other end of the rope (7) can be releasably fastened to the handle (8), characterised by a first type of construction of the surfboard, in which the rope (7) is connected to the handle (8) and surfboard and a second type of construction, in which the rope (7) is detached from the surfboard and the handle (8),
    characterised in that the handle (8) is shaped approximately triangular with rounded corners along its outer and inner periphery and has a gripping portion (28) for the surfer (1) to grip with one hand, and during surfing a centre of force in the first type of construction is arranged centrally in the gripping portion (28) and the accelerator level (23) is arranged laterally on the outside on the handle (8) pivotably around the gripping portion so that it can be operated by a thumb of the hand of the surfer (1) gripping the handle (8) and on a region of the gripping portion (28) remote from the other end of the rope, a lever surface (23a) facing in the direction of the gripping portion (28) is arranged on the accelerator lever (23) and the accelerator lever (23) can be operated by pressing the lever surface (23a).
  2. Surfboard according to claim 1,
    characterised in that the remote control preferably comprises a wireless remote control.
  3. Surfboard according to one of claims 1 to 2,
    characterised in that the wireless remote control transmits wireless signals by pulse width modulation in an ISM band.
  4. Surfboard according to one of claims 1 to 3,
    characterised in that the transmission of the wireless signals takes place in a 2.4 - 2.5 GHz ISM band.
  5. Surfboard according to one of claims 1 to 4,
    characterised in that the handle (8) is watertight.
  6. Surfboard according to one of claims 1 to 5,
    characterised in that the handle (8) has an average density of ρ<1.0 g/cm3.
  7. Surfboard according to one of claims 1 to 6,
    characterised in that one end of the rope (7) is fastened releasably to the bow (4) by means of a fastening means (6).
  8. Surfboard according to one of claims 1 to 7,
    characterised in that the other end of the rope (7) is fastened releasably to the handle (8) by means of a further fastening means (9).
  9. Surfboard according to one of claims 1 to 8,
    characterised in that the further fastening means (9) for the other end of the rope is arranged spaced apart perpendicularly and centrally from the gripping portion (28).
  10. Surfboard according to one of claims 1 to 9,
    characterised in that the fastening means (6) and/or the further fastening means (9) have a snap closure.
EP18827089.6A 2017-12-21 2018-12-20 Surfboard with handle Active EP3728013B1 (en)

Applications Claiming Priority (2)

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DE102017130949.7A DE102017130949A1 (en) 2017-12-21 2017-12-21 SURFBOARD WITH HANDLE
PCT/EP2018/086292 WO2019122185A1 (en) 2017-12-21 2018-12-20 Surfboard with handle

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EP3728013A1 EP3728013A1 (en) 2020-10-28
EP3728013B1 true EP3728013B1 (en) 2024-05-01
EP3728013C0 EP3728013C0 (en) 2024-05-01

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US (1) US11180224B2 (en)
EP (1) EP3728013B1 (en)
CN (1) CN111556840A (en)
AU (1) AU2018387286B2 (en)
DE (1) DE102017130949A1 (en)
IL (1) IL275551A (en)
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US11180224B2 (en) 2021-11-23
AU2018387286A1 (en) 2020-07-09
US20210147041A1 (en) 2021-05-20
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CN111556840A (en) 2020-08-18
WO2019122185A1 (en) 2019-06-27
DE102017130949A1 (en) 2019-06-27
IL275551A (en) 2020-08-31
EP3728013A1 (en) 2020-10-28
AU2018387286B2 (en) 2021-11-04
EP3728013C0 (en) 2024-05-01

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