| 摘要 |
<p>The invention relates to an inrun speeding device for pulling along a person moving on skies, a snowboard, a skateboard, or the like at an accelerating speed for the purpose of performing a jump. The device comprises an endless belt, a cable or a rope (5), which rotates around a drive wheel (4), an electric motor (7) for rotating the drive wheel (4), a housing (1) comprising guide rolls (11) for the belt, cable or rope (5), and on the upper side of which is a gap (3) through which the upper run of the belt, cable or rope (5) can be lifted out so that the person being pulled along will be able to grip it. The electric motor (7) is controlled by means of an inverter (8) to provide the person being pulled along with a pre-programmed, adjustable acceleration and desired final speed.</p> |
