The transmission gear drive unit which has the load torque cutout gear

摘要

As for this invention, transmission gear drive unit (10), being the especially window lifter drive, the electric motor (14) is provided, the said electric motor (14), the transmission gear (30) has reached the point where it drives, furthermore, the load torque cutout gear (44) is provided, the said load torque cutout gear (44), clutch element of output side (42) from the torque which is introduced (86) regards those of the type which has reached the point where it cuts off. According to this invention, the load torque cutout gear (44) has had, the lap spring (54), the said lap spring (54), the relative time dynamic impossible axis (50,52) is arranged, the transmission gear gear which is driven the lap spring (54), the electric motor (14) the rotor shaft (16) by on input side (40) it is proposed that it has engaged.