| 摘要 |
A rim of a wheel 1, cut in its upper part that allows to change the height of the wheel relative to the driver's seat, is integrally formed with two side spokes 2 and a head cover 3 and is attached to a head 4 rigidly fixed to an axle 5 of a roller 6. Third spoke 7 is fixed to the lower part of the middle portion of the rim 1 with possibility of turning 150 ° at a turn-up of the rim 1 by 180°, at the position of the wheel for steering the vessel in the sitting position one rim 12 is locked by pins. |
