| 摘要 |
PURPOSE: An adjusting device for the tilting angle of a cab in a truck is provided to enhance workability and maintenance by tilting the cab in an angle adapted for engine check or light repair and by tilting the cab wider than the angle for the light repair in case of heavy repair. CONSTITUTION: A cab tilting device of a truck comprises an operating switch(110) controlling the operation of a hydraulic cylinder(100); a switch operating unit(104) lifting with an operating rod(102) of the hydraulic cylinder and operating a cut-off switch(120); a relay switch(130) supplying power to a supply pump(140) from the operating switch and cutting off power according to the contact point of the cut-off switch; and the supply pump supplying hydraulic pressure to the hydraulic cylinder with power from the relay switch. The second cut-off switch(20) is operated by the switch operating unit in a circuit connecting the operating switch and the cut-off switch. An angle adjusting switch(10) adjusts the operating rod of the hydraulic cylinder by controlling the connection between the second cut-off switch and the cut-off switch. The second relay switch(30) connected with the second cut-off switch, is connected to a circuit connecting the operating switch and the relay switch. Thus, an electric signal is transmitted to the relay switch through the second relay switch.
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