| 摘要 |
The present invention relates to a concrete mixer truck and, more particularly, to a concrete mixer truck which is a medium sized truck where a concrete mixer capable of loading 6 m^3 concrete is installed. The concrete mixer truck comprises: a car body frame; a concrete mixer which is installed in the rear side upper part of the car body frame; a front axle which is positioned at the front side of the car body frame; a rear axle which is positioned at the rear side of the car body frame in order to operate as a driving axle; and a pusher axle system. The pusher axle system comprises: a pusher axle which is positioned at the front side of the rear axle; an elevating device which lifts or lowers the pusher axle, as necessary; and a control unit which controls the operation of the elevating device. |
