Patent ID: 7258210

Claim:
A disc brake comprising a caliper surrounding one or more brake discs and one or more brake pads, and a brake actuating mechanism housing attached to the caliper, characterized in that one or more brake pads are received on back plates or other pad supports and/or in the caliper, that the caliper and pad supports are designed to take up resulting reaction forces during braking in a plane perpendicular to a contact surface between the caliper and each pad support, and that a calculated point of action of the resulting reaction forces is placed inside said contact surface, in order to support the brake pads in a balanced way to prevent any tendency for the pad supports to rotate out from the caliper and to rotate toward the centre of the brake, said calculated point of action of the resulting reaction forces being established by using the following relationship: Heq = Ry + Ri 2 · α sin ⁢ ⁢ α where: Heq is the perpendicular distance in the direction of the brake pad from a plane through the centre of a brake disc, wherein the plane is perpendicular to a line going through the centre of the brake pad, wherein the line is perpendicular to an axis of rotation of the brake disc, at which the resulting reaction forces have their point of action; Ry and Ri are the radius from the centre of the brake disc to the outer and inner side, respectively, of the brake pad; and α is the angle between a line, going through the centre of the brake pad and through the centre of the brake disc, and respective end of the brake pad.