| 摘要 |
PURPOSE: A supporting structure for a propeller shaft is provided to reduce vibration and noise by maintaining an angle of a jointing portion of a front propeller shaft and a rear propeller shaft with a center bearing moving up and down along with a rear axle. CONSTITUTION: A center bearing(54) supports a jointing portion of a front propeller shaft(52) and a rear propeller shaft(53) to make a specific angle. A front universal joint(56) connects an input shaft of a transmission(51) and the front propeller shaft. A rear universal joint(57) connects the rear propeller shaft and a rear axle(55). A bearing bracket(58) supports the center bearing by being connected to a floor panel(60). An operating cylinder(61) is fixed to the floor panel and connected to the rear axle in a piston rod. Therein, the operating cylinder generates hydraulic pressure by vibration of the rear axle. A slave cylinder is fixed to the floor panel and connected to the center bearing bracket in the piston rod. Therein, the slave cylinder moves the center bearing bracket up and down by hydraulic pressure of the operating cylinder transmitted through a hydraulic pipe(63). Therefore, the angle of the front propeller and the rear propeller is maintained stably by moving the center bearing along with the rear axle.
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