Starter for cranking an internal combustion engine with pinion shaft support

摘要

The invention relates to a starter (2) for starting an internal combustion engine, in particular a freely ejecting starter (2), comprising an electric starter motor (6) having an external toothing (42, 44) drive shaft (10), a pinion shaft (16 ), which carries a pinion (20), and a coupling part (28) of a between the drive shaft (10) and the pinion shaft (16) arranged roller one-way clutch (12), one with the external teeth (42, 44) of the drive shaft ( 10) meshing internal toothing (46) and together with the pinion shaft (16) from the starter motor (6) away in the axial direction of the drive shaft (10) in a Einspurstellung (Fig. 2) is displaceable, in which the pinion (20) with a Gear or ring gear of the internal combustion engine meshes. In order to load the roller raceways (52, 54) of the roller one-way clutch (12) less strongly by the radial forces acting on the pinion shaft (16) when the internal combustion engine is turned on in the region of the pinion (20), a device (60, 64) is provided. for direct support of the pinion shaft (16) on a side facing away from the starter motor (6) portion (42) of the external toothing (42, 44) of the drive shaft (10).