| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a traveling transmission system of a working vehicle which enables speed to be changed comparatively easily and securely by constituting a structure of the traveling transmission system in which speed is changed with gears in multiple stages using multiple-disc clutches and synchronizing clutches that enables shift control to be performed easily. <P>SOLUTION: In the traveling transmission system of a working vehicle, revolutions of an input shaft 21 input from an engine output shaft 20 branch to a low-speed transmission shaft 34 and a high-speed transmission shaft 32 by high/low hydraulic multiple-disc clutches 24, 25 of the same structure. The revolutions of the low-speed transmission shaft 34 and the high-speed transmission shaft 32 are transmitted to a first transmission shaft 39 from a main speed change part 150, which changes speed to high/low by a first synchronizing change 42 and a second synchronizing change 36 respectively. Then, the revolutions of the first transmission shaft 39 is transmitted to rear wheels 3 by changing the speed in multiple stages by a sub speed change part 154 made up of a plurality of synchronizing changes 58, 71. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
