| 摘要 |
At a lifting truck provided with support wheels (3) on each side of a steerable driving wheel (2) the support wheels are by a spring (10) pressed against the ground. Each support wheel (3) is connected to one end of a two-armed lever (8) that is journaled in the frame of the truck. The other end of the lever (8) is connected to the lifting cylinder (6) of the lifting forks (4) that are connected to the piston rod of the lifting cylinder in the other end of the cylinder. Through the lever (8) a force counteracting the spring pretension is transferred that is proportional to the force lifting the load so that an increasing contact pressure is obtained for the driving wheel when the load is increased. <IMAGE> |
