| 摘要 |
PROBLEM TO BE SOLVED: To provide an air resistance reducing device capable of surely setting a panel body at an inclined angle corresponding to use modes of a tractor and the panel body when changing the use mode of the tractor. SOLUTION: This device 6 is provided in the tractor 4 and is provided with the panel body 11, an air cylinder 12 and an air supply pipe line 13. The panel body 11 is tiltably installed in the cabin roof 7. The air cylinder 12 sets an inclined angle of the panel body 11 according to a supply state of air. The air supply pipe line 13 connects the air cylinder 12 and an air compressor 5 and has a first coupler 33 and a second coupler 34. In a state of a trailer 3 connected to the tractor 3, the first coupler 33 and the second coupler 34 are connected and the inclined angle of the panel body 11 is set to be a minimum angle. In a separated state of the trailer 3, the connecting state of the first coupler 33 and the second coupler 34 is released and the inclined angle of the panel main body 11 is set to be a maximum angle. COPYRIGHT: (C)2007,JPO&INPIT
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