| 摘要 |
<p>A concrete mixer truck comprises at least a vehicle (11) on which a concrete mixer (15) is mounted, provided with a mixing drum (16) for concrete, and an auxiliary electro-mechanical device (29) having at least one electric motor (31) connected mechanically to the drum (16) to make it selectively rotate. The concrete mixer truck (10) also comprises a safety device (50) provided with at least one braking member (50a, 50b, 50c, 50d) connected to the drum (16) and configured to stop the rotation thereof, and with a device (47) to selectively activate/deactivate said braking member (50a, 50b, 50c, 50d) connected to the auxiliary device (29) and to the braking member (50a, 50b, 50c, 50d) by means of an activation/deactivation circuit (48).</p> |
