| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a transmission of a working vehicle which improves the flexibility of the layout of gears and shafts or the like in a transmission case by improving the flexibility of a center gear to be an input gear on a sun gear shaft, while an excellent engaging state of gears each other in a planetary gear mechanism can be held, and can improve the life of the gears by suppressing the generation of gear wear and gear noise in a right and left pair of planetary gear mechanisms composing a differential mechanism. <P>SOLUTION: The sun gear shaft 50 which is disposed on the same axis of the axles 21R, 21L between the right and left axles 21R, 21L, and composes the sun gear 51 of respective planetary gear mechanisms 31R, 33L, is rotatably supported by a bearing support part 56 formed on the transmission case 31 at the midway part between both planetary gear mechanisms in the axial direction, and the input gear (center gear 44) of the sun gear shaft 50 which is relatively unrotatably supported on the sun gear shaft 50 is adjacently disposed on the bearing support part 56. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
