| 摘要 |
PROBLEM TO BE SOLVED: To provide a transportation vehicle which can prevent the generation of a cavity and the oscillation of a vehicle body by preventing an abrupt fall of earth and sand or the like when making a cargo-loading platform rise and fall for discharging the loaded earth and sand or the like, and is suppressed in the lowering of operability caused by the application of vibration and damage to the vehicle body.SOLUTION: When a hoisting angle θ of a cargo-loading platform 1 measured by an angle sensor 23 exceeds a first hoisting angle θa when the cargo-loading platform 1 is made to rise and fall, and when pressure P in a bottom-SD oil chamber of a hoist cylinder 3 measured by a pressure sensor 24 exceeds first pressure Pa, a controller 20 determines that a possibility that loaded earth and sand slide and fall on the cargo-loading platform 1 in a lump is high, and starts the drive of a vibration applicator 11. Also, when the hoisting angle θ of the cargo-loading platform 1 is lowered to a second hoisting angle θb or lower, or the pressure P of the hoist cylinder 3 is lowered to second pressure Pb or lower, the controller determines that a possibility that the loaded earth and sand slide and fall on the cargo-loading platform 1 is low, or determines that the earth and sand have slid and fallen, and stops the drive of the vibration applicator 11.SELECTED DRAWING: Figure 4 |
