HST type variable speed feature for operating

摘要

PROBLEM TO BE SOLVED: To make safe turning and steering possible by providing interlocking link mechanism between a steering operating means and a main shift lever in order to put HST type continuously variable transmission mechanism for traveling back to the decelerating side. ;SOLUTION: A main shift lever 68 connected to HST type continuously variable transmission mechanism 25 for traveling, and a steering operating means 19 connected to HST type continuously variable transmission mechanism for turning are interlockingly connected to speed change and turning interlocking mechanism 69, a moving means. The interlocking mechanism 69 is interlockingly connected to a traveling speed change operating arm 151 and turning neutral holding arm of traveling and steering HST type speed change mechanism 25 through traveling speed change and steering link mechanism 70, 71. In largely rotated state of the steering operating means 19, the set speed is lowered by the main shift lever 68 according to the steering angle of the steering operating means. Safe turning and steering can thereby be performed.;COPYRIGHT: (C)1998,JPO