| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-speed change type working vehicle allowing rapid operation restart through efficient speed change adjustment operation, where the multi-speed change transmission device is configured to switch speed stages by manually operating a shift lever. <P>SOLUTION: The multi-speed change type working vehicle includes a multi-speed change transmission device including a sub-speed change unit (D) for setting a working vehicle speed range by switching a transmission system of multi-speed change structure, and main speed change units (B, C) of multi-speed change structure for setting a fixed working vehicle speed by switching, with respect to each speed stage of the sub-speed change unit (D), the transmission system of multi-speed change structure to shift-transmit an engine power to traveling units (6, 7). The device further includes a control unit which aggregates traveling time for each combination of the speed stage of the sub-speed change unit (D) and the speed stage of the main speed change units (B, C), records a combination of speed stages with the longest traveling time among them in a non-volatile manner, and displays the recorded combination of speed stages. <P>COPYRIGHT: (C)2012,JPO&INPIT |
