Yanmar Co., Ltd.

Yuji Kitasaka

Toshiyuki Miwa

Katsunori Katou

Takeshi Hasebe

A hydraulically driven traveling vehicle comprising a pair of right and left driving axles (driving sprockets) differentially connected to each other by a differential mechanism, the input section of the differential mechanism having the output rotation of traveling HST() transmitted thereto, both driving sprockets having mutually opposite two-flow output rotations separately transmitted thereto from a steering HST (), thereby effecting traveling driving and turning, electromagnetic solenoids () serving as output regulating devices for the traveling HST and the steering HST being provided so that the manipulated variables and directions of a speed change lever and a steering operation tool are converted into electric signals, on the basis of which electric signals the output current values of the electromagnetic solenoids are controlled, causing the respective output rotary speeds of the HSTs to correspond to the output current values.

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Osaka, Japan

Yuji Kitasaka