Double disc plow share with internal depth guide

摘要

At least one double disc coulter (7, 8) and one depth control wheel (9) are arranged on a frame (6) of a pneumatic feed type high precision seeder. The depth control wheel 9 is disposed between the two disc coulters 7 and 8 when viewed from the traveling direction, and the two disc coulters 7 and 8 and the depth control wheel 9 rotate in the same direction. [Selection] Figure 3