| 摘要 |
The invention relates to a pedal boat drive comprising at least one pedal crank ( 11 ) and a drive train for transferring drive energy produced by the pedal crank ( 11 ) to a means of propulsion ( 20 ), e.g. a propeller. At least one flywheel ( 16 ), which is mounted on a free-running axle ( 22 ), is placed in the drive train between the pedal crank ( 11 ) and the means of propulsion ( 20 ). Drive energy produced by the pedal crank ( 11 ) is transferred from the pedal crank to the flywheel ( 16 ), which is mounted in a free-running manner, and is transferred from said flywheel to the means of propulsion ( 20 ). The aim of the invention is to further develop a pedal boat drive of this type that enables a pedal boat to be used as an item of sports equipment. In doing this, the pedal boat should behave in water similar to a bicycle on land with regard to the feeling of riding. To this end, a switching mechanism ( 18, 21, 23, 24 ) for reversing the running direction of the means of propulsion ( 20 ) while the direction of rotation of the pedal crank ( 11 ) remains unchanged is placed in the drive train, and the pedal boat drive has two flywheels ( 16 ), which are mounted parallel to one another on the free-running axle ( 22 ) while leaving an intermediate space ( 17 ) therebetween. A take-off element ( 18 ) is placed inside said intermediate space ( 17 ). This take-off element is connected to the means of propulsion ( 20 ), serves to transfer the drive energy and can be coupled as desired to one of the inner faces ( 28 a, 28 b) of both flywheels ( 16 ) in order to transmit drive energy. The invention also relates to a pedal boat comprising a pedal boat drive of the aforementioned type.
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