Spring-loaded safety belt winder for motor vehicles

摘要

The stepped sides (15) of a transitional groove part (18''') of a guide part (18'') of a second winding section (14b) with larger diameter (D) extend at an angle larger than 90 deg relative to the rotary axis of the thread pulley (14), towards the radial outer guide groove (18') of the first winding section (14a) with smaller diameter (d) and/or the stepped sides (15') of the second guide part (18'') to the radial outer transitional guide groove part (18'''). Due to this, between the two winding spools (14) the thread extends free off the stepped sides and esp. free of the peripheral edge of the guide grooves of the smaller winding section.