| 摘要 |
PROBLEM TO BE SOLVED: To provide a fertilization unit which has a simple structure, facilitates residual fertilizer-discharging works and maintenance works in a fertilization device, and can surely hold the fertilization device in a working posture, when the fertilization device is placed at a fertilization work position. SOLUTION: This fertilization unit 100 having a positioning mechanism 300 for drawing a posture at the fertilization work position of a movable member 1200 is characterized in that the positioning mechanism 300 has a fixed side engaging member 310 not enabling a relative movement on the basis of a working vehicle main machine 1, and a movable side engaging member 320 disposed on the movable member 1200 to convexoconcavely engage with the fixed side engaging member 310, when the movable member 1200 is placed at the fertilization work position. COPYRIGHT: (C)2007,JPO&INPIT
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