Patent ID: 7255050
Filing Date: 2007-08-14
Classification: A01C

Abstract:
1. Pneumatic single grain sowing machine with a seeds storage container, and an individualization device subjected to air pressure, exhibiting perforations ( 26 ), and rotating, wherein the individualization device with its region disposed below a rotation axis ( 38 ) is guided at least in part to a seed storage led through the storage container at the individualization device for placing seed grains at the perforations ( 26 ), wherein a separating wall is disposed between the storage container and the individualization device, wherein the separating wall determines the seeds storage height level and extends at a distance to the individualization device in a vertical direction, characterized in that an adjustable blocking device ( 18 , 19 , 30 , 35 ) is disposed between the individualization device ( 7 , 9 , 25 ) and the separating wall ( 15 , 33 ) in the region of the lower end of the separating wall ( 15 , 33 ) and above the seeds storage height level and wherein the blocking device ( 18 , 19 , 30 , 35 ) closes in an intermediate space ( 22 , 31 , 32 ) between the individualization device ( 7 , 9 , 25 ) and the separating wall ( 15 , 33 ).