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    • 5. 发明专利
    • MOWING OPERATION VEHICLE
    • JPH09205842A
    • 1997-08-12
    • JP1800196
    • 1996-02-02
    • HONDA MOTOR CO LTDSATO SEISAKUSHO KK
    • MINATO KAZUHIROSATO MASAO
    • A01D34/44A01D34/43A01D34/54
    • PROBLEM TO BE SOLVED: To provide an operation machine which can have the swing angle of a sled and the elevation position of a protector properly adjusted according to the height of grass and facilitates the adjusting operation. SOLUTION: In the operation machine 3 which is supported in front of a traveling vehicle body 1 through an operation machine support arm 75 and elevated by a cylinder 79 for operation machine elevation, a hammer knife 67 which cuts grass is supported rotatably. On the reverse surface of the operation machine 3, the sled 71 is supported so that it freely swings up and down around a pin 122, and before the operation machine cover 65 of the operation machine 3, a movable protector 69 is supported so that it is freely elevated around a pin 125. When the front-rear swing angle of the sled 71 is varied with a bolt 124 so as to adjust the height D2 of the lowest point of the hammer knife 67, the movable protector 69 that an abutting member 127 is made to abut against is lowered onto the top surface of the front part of the sled and the gap H2 from the ground surface is automatically adjusted.