| 摘要 |
PROBLEM TO BE SOLVED: To heighten the effects of preventing the floating of dust generated at raising and to enable the operation to be carried out efficiently in hygienic environment by forming an air curtain over the whole width of reaping width. SOLUTION: An air-ejecting duct (15) for forming the air curtain (Ac) over the whole width by ejecting to the front side the air from the upper parts of a plurality of raising devices (10) for raising grain culms after dividing grasses is installed. The upper terminal parts of raising cases (10a) of each raising device (10) are connected by the air-ejecting duct (15). The air-ejecting duct (15) is constituted so as to be freely turned or fixed around the axis of a horizontal shaft (18) in the right and left direction. COPYRIGHT: (C)2011,JPO&INPIT
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