| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent deterioration of a fuel economy of an engine and slowing of turning speed due to insufficient feeding of power to a turning HST caused by wasting the power from the engine on a traveling HST during spinning where the traveling HST is not needed, which are problems in a vonventional vehicle having the traveling HST for modifying vehicle speed and the turning HST for performing steering operation, performing steering and traveling drive by joining driving forces from both HSTs, and performing from a gentle turn to spinning by operating both HSTs. SOLUTION: In this device, a neutral operation mechanism is provided returning a movable swash plate of the traveling HST to a neutral position and this operation mechanism is connected to a turning operation means for returning to a traveling neutral during spinning.</p> |
