| 摘要 |
PROBLEM TO BE SOLVED: To exhaust the heat generated in a display panel device mounted on an agricultural working machine to the outside by a simple and inexpensive configuration. SOLUTION: An exhaust cylinder 69 is connected with an air exhaust port 68 provided in a bottom cover body 62 among a main body case in the display panel device 60 attached to an upper part of a hood cover body 9 and an opened end of the exhaust cylinder is arranged in the vicinity of air suction side (cooling air taking-in port 42) in an engine cooling fan 41 so that negative pressure generated when sucking the air around the engine cooling fan 41 acts on the opened end of the exhaust cylinder 69 when the engine cooling fan 41 operates to exhaust the air in the main body case to the outside through the exhaust cylinder. On the other hand, since an air intake port 67 is provided in the main body case, outside air is sucked into the main body case to form forced flow of cooling air. COPYRIGHT: (C)2008,JPO&INPIT
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