Drive for leaf of door or window has intermediate piece, which has a lever teeth corresponding with lever whereby shaft teeth and lever teeth have different number of teeth to finely divide connection of drive shaft and lever

摘要

Drive (1) has a intermediate piece, which has a lever teeth corresponding with lever (6). The drive shaft and the lever are rotationally fixed and are connected with one another by an intermediate piece. The shaft teeth and the lever teeth have different number of teeth for finely dividing the connection (7) of drive shaft (8) and the lever.