Electromechanically actuated disc brake

摘要

Suggested is a disc brake for motor vehicles which can be actuated by means of an electric motor with the interconnection of a reduction gear and which includes a floating caliper with two friction linings arranged within the brake caliper so as to be displaceable therein. The reduction gear is constructed as a threaded roller drive with threaded roller recoil the axially displaceable spindle whereof brings one of the two friction linings into engagement with a brake disc.For the purpose of realizing a clamping or arresting function this invention suggests to provide a clamping or arresting device (34) cooperating with a rotating part (11) of the reduction gear (7) or with a part (21) having power-transmitting connection to the reduction gear (7) so as to lock the latter.