| 摘要 |
PURPOSE: A four-wheel driving switching device of a vehicle is provided to easily operate by integrating a driving shaft. CONSTITUTION: A four-wheel driving switching device comprises a driving shaft(11) to be divided for independently rotating and to form a spline in the divided end; a rotating center maintaining pin(12) to support the rotating center of a driving shaft(11) and to connect the driving shaft(11); a rotating force control member(13) to interlock the driving shaft(11) by moving on the driving shaft(11) lengthwise; a moving device to move the rotating force control member(13) on the driving shaft(11) lengthwise; and a hydraulic controller to control hydraulic pressure for operating the moving device. The moving device comprises a transferring link(14) to transfer the rotating force by connecting with the rotating force control member(13) and a piston cylinder member(15) to rotate the transferring link(11) by hydraulic pressure. The hydraulic controller comprises a hydraulic pump(16) to generate the hydraulic pressure; a direction converting valve(17) to convert a direction of the hydraulic pressure to be supplied into the moving device; a tank(18) for supplying a fluid in the hydraulic pump(16) and for storing the fluid by receiving the fluid from the direction converting valve(17); and a mode converting switch(19) to supply electricity into the hydraulic pump(16) and to convert a polarity of electricity to be fed into the direction converting valve(17).
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