| 摘要 |
<p>Three-wheel vehicle comprising a front steering wheel (2) and a pair of rear driving wheels (3, 4), supported at the ends of two respective oscillating arms (16, 17), the other ends of which are hinged onto the vehicle frame (6) about a horizontal axis, said arms being reciprocally connected through balancing means apt to transmit to one of the arms an oscillation in a direction and to an extent opposite to those of the other arm. Said balancing means comprise two pairs of hydraulic cylinder-piston units (27-25 and 28-26), one for each oscillating arm (16, 17), the chambers of the two cylinders (27, 28) being reciprocally connected through a duct (29) of hydraulic fluid (33) under pressure. Said balancing means comprise means to stop the oscillation of said arms (16, 17), consisting of a control valve (34) interposed along said duct (29) and apt to be automatically actuated on stopping of the vehicle and/or when driving below a predetermined critical speed, so as to stop the flow of fluid.</p> |
