| 摘要 |
An air spring actuator (35) is mounted vertically, behind the push-frame (26 ) of a snowplough vehicle. A boom structure (18) is mounted on the front side of th e push- frame. A cable (10) supported by boom (18) connects the actuator to the plough. Vehicle air pressure is supplied to the air spring through an adjustable sel f- relieving pressure regulator. The air spring actuator force apparatus has sufficient stroke to allow the snowplough to follow an uneven surface. Longitudinal expansion of the actuator causes weight to be transferred from the plough, to the vehicle pushing it. Because a portion of the weight of the snowplough has been transferred to th e vehicle pushing it, the plough's ground engaging components, such as skid shoes and blades have less wear.
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