| 摘要 |
PROBLEM TO BE SOLVED: To provide an application amount adjustment electric operation part of a fertilizer applicator which facilitates a potentiometer assembly and has a simple structure.SOLUTION: A potentiometer 243 connects an input shaft 243a of the potentiometer 243 and a rotation shaft 240a of a rotation arm 240 so as not to allow relative rotation and is fixed and held on a base plate 245. On the base plate 245, an insertion hole 245a parallel to the input shaft 243a is arranged at a position separated from the input shaft 243a of the potentiometer 243. In the insertion hole 245a, a stopper shaft 246 fastened on a support member 244 is inserted. The application amount adjustment electric operation part is thus assembled by interposing an elastic member 247 between the stopper shaft 246 and an inner periphery of the insertion hole.SELECTED DRAWING: Figure 6 |
