| 摘要 |
PROBLEM TO BE SOLVED: To prevent reverse travels when an asphalt finisher starts on a steep slope. SOLUTION: A control circuit 1 for preventing reverse travel on a slope for an asphalt finisher is provided with the above travel drive device wherein a travel drive device for asphalt finisher, which is constituted in such a way that hydraulic motors 3 and 3 are connected to a hydraulic pump 2, and travel wheels 5 and 5 are driven for rotation by the hydraulic motors 3 and 3 through speed reduction devices 4 and 4, an angle sensor 6 is provided for detecting the inclination of a car body in its longitudinal direction and connected to a controller 7, and the controller 7 is connected to the inclination regulator 8 of the hydraulic pump 2, the inclination regulators 9 and 9 of the hydraulic motors 3 and 3, and the electromagnetic directional valves 10 and 10 of the speed reduction devices 4 and 4, and a travel speed setting dial, which can vary travel speed by controlling the discharge quantity of the hydraulic pump 2, and a mode change over switch 12, which changes over the setting of the travel mode and the execution mode by controlling the absorption quantity of the hydraulic motors 3 and 3, are connected to the controller 7. |
