| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive running driving device for a working machine capable of constituting it by adjusting capacity of a hydraulic motor of a hydrostatic continuously variable transmission for turn automatically to control direction automatically and improve work efficiency and simplifying an operation mechanism of the hydrostatic continuously variable transmission for turn. SOLUTION: This running driving device inputs output of the hydrostatic continuously variable transmission 1 for running composed of a variable displacement hydraulic pump 1a and a fixed or variable displacement hydraulic motor 1b and output of the hydrostatic continuously variable transmission 2 for turn composed of a variable displacement hydraulic pump 2a and a variable displacement hydraulic motor 2b into left and right planetary gear mechanisms 3L, 3R, respectively, to move left and right axles 4L, 4R differentially and turn them by the output synthesized by the left and right planetary gear mechanisms 3L, 3R. COPYRIGHT: (C)2007,JPO&INPIT
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