| 摘要 |
PROBLEM TO BE SOLVED: To prevent water from pouring over a filter and to save space without having to displace the filter and a slit provided in a cover. SOLUTION: In an oil hydraulic shovel provided with a driver's cabin 5, an outside-air introduction part 13 for taking outside-air in an air conditioner is provided on the left side surface of the driver's cabin 5 opposite a working machine. In the outside-air introduction part 13, the filter 20 for removing dust from the outside air is mounted to a filter-mounting part 18a of an inside inlet 18 at the center of a side panel 16. The openable and closable cover 15 is provided in such a way as to be opposed to the outside of the filter 20. The cover 15 includes a plurality of slits 25 and stepped plates 24 for introducing the outside air are alternately. An inner wall 22 is fixed to the back surface of the cover 15. The inner wall 22 has a waterproof plate 27 positioned between the slits 25 of the cover 15 and the filter 20. COPYRIGHT: (C)2011,JPO&INPIT
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