| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve riding comfortability further by preventing a machine frame from becoming unstable due to a suspension mechanism accompanied with such running conditions as running on slope, sudden acceleration and deceleration, and sharp turning. Ž<P>SOLUTION: In a machine frame stabilizing device of a riding working machine, four wheels of front and rear wheels that support the riding machine frame are supported by a front wheel suspension mechanism and a rear wheel suspension mechanism, which can adjust an elastic support force. A control section is provided that controls the elastic support force of the front wheel suspension mechanism and rear wheel suspension mechanism. The control is performed by changing the elastic support force of the front wheel suspension mechanism and rear wheel suspension mechanism according to the conditions of the inclination of machine frame, running speed, etc. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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