Floating-caliper spot-type disc brake

A floating-caliper spot-type disc brake comprising:

• a rotating brake disc having an axis of rotation and a main direction of rotation about said axis;
• a brake caliper having a pair of legs parallel to said disc and a pair of spaced guide grooves parallel to and on opposite sides of said axis, each of said pair of legs being disposed on a different side of said disc;
• a non-rotating brake support member secured in position on one side of said disc, said support member having a pair of spaced arms extending across the periphery of said disc parallel to and on opposite sides of said axis, each of said pair of arms having a pair of projections each extending inwardly toward said axis and disposed on a different side of said disc engaging an associated one of said pair of grooves to guide said caliper axially and to support said caliper in a circumferential direction of said disc, each of said projections of each of said pair of projections having a length to prevent disengagement thereof from an associated one of said pair of grooves in the presence of a maximum displacement of said brake caliper in said circumferential direction of said disc;
• a pair of brake shoes each being disposed on a different side of said disc, a first of said pair of brake shoes being supported between said pair of arms on said one side of said disc and movable into engagement with said disc by an actuating piston contained in one of said pair of legs disposed on said one side of said disc and a second of said pair of brake shoes being directly supported in the other of said pair of legs disposed on the other side of said disc;
• and
• a means disposed on said one side of said disc between said first of said pair of brake shoes and one of said piston and said support member to enable said one of said pair of legs to follow a displacement of said other of said pairs of legs transverse to said axis caused by a braking force.