| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a conventional riding working machine that the function of each wheel of vertically moving according to unevenness and inclination of the paddy field to keep the machine body horizontal changes by variation of the machine body weight such as variation of the weight of an operator and an assistant worker boarding on the machine and variation of the weight of members mounted on the machine body (variation of the mounting quantity of seedling and fertilizer in a riding type rice transplanter with a fertilizer applicator) and keeping proper machine attitude at all times is difficult because the machine is constituted with each of the right and left front wheels and right and left rear wheels vertically moving by a spring independently. SOLUTION: The riding working machine provided with steering right and left front wheels 10 in the front part of the machine body and provided with the right and left rear wheels in the rear part of the machine body, is constituted so that the right and left front wheels 10 are respectively suspended from the machine body through elastic members 81a, an engine is mounted on the machine body, a muffler is arranged on one side of the engine, and cooling air for the engine flows from the side of the muffler disposed and the opposite side of the engine toward the muffler side. COPYRIGHT: (C)2009,JPO&INPIT
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