EPICYCLIC STEP-DOWN GEAR COMPRISING AT LEAST ONE AXIAL FORCE TRANSMISSION COMPONENT WHICH FORMS A RADIALLY ECCENTRIC FORCE PATH

The invention relates to an epicyclic step-down gear (1) for an electric parking brake, this step-down gear (1) comprising a drive shaft (3), at least one step-down stage and a cylinder (14) which forms a screw/nut system with an outer planet gear (2) of this step-down gear. This step-down gear (1) comprises at least one axial force transmission component (16, 11) which is positioned between a bearing ring (20) of the drive shaft (3) and the cylinder (14) so as to transmit axial forces applied via either the bearing ring (20) or the cylinder (14) to either this bearing ring (20) or this cylinder (14). Such an axial force transmission component (16, 11) prevents the drive shaft (3) from buckling by defining an axial force transmission path which is radially eccentric. 本发明涉及一种用于电动停车制动器的周转式减速器(1)，该减速器(1)包括驱动轴(3)、至少一个减速级和圆筒状件(14)，圆筒状件与该减速器的外行星齿轮(2)形成螺杆/螺母系统。该减速器(1)包括至少一个轴向力传递部件(16，11)，至少一个轴向力传递部件定位于驱动轴(3)的支承环(20)和圆筒状件(14)之间以将经由支承环(20)或圆筒状件(14)中的一个施加的轴向力传递到该支承环(20)和该圆筒状件(14)中的另一个。这种轴向力传递部件(16，11)通过限定径向偏心的轴向力传递路径而防