| 摘要 |
PROBLEM TO BE SOLVED: To improve the operability for straight travelling and turning traveling with a small simple mechanism in a traveling vehicle which is provided with a transmission device for straight traveling which transmits a motive power to left and right traveling parts for supporting a travel machine body, a transmission device for turning traveling which reversely rotatingly transmits a motive power to the left and right traveling parts, an operation unit for shifting the transmission device for straight traveling, and an operation unit for turning the transmission device for turning traveling. SOLUTION: A shift control body 81 is rotatably disposed around a shift axis line X and a turning control body 82 is disposed around a turning axis line Y orthogonal to the shift axis line X at a turning input axis 72 rotated by the operation unit for turning. Both of them are configured to be interlocked with the operation unit for shifting and to be tiltingly rotated around the respective axis lines. The transmission device for straight traveling is shiftingly operated by a slider member 97 for shifting which is slidably engaged with a circular cum 81a disposed in the shift control body, and the transmission device for turning traveling is shiftingly operated by a slider member 106 for turning which is slidably engaged with the circular cum 82a disposed in the turning control body. COPYRIGHT: (C)2009,JPO&INPIT
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