Band spring for returning brake pads on a caliper

A method for elastically biasing at least one brake pad away from a brake disc;

• comprising
• providing at least one band spring shaped to straddle said brake disc and comprising a band-shaped spring body;
• wherein
• said brake disc is adapted to rotate about a rotation axis that defines an axial direction parallel to said rotation axis, a radial direction orthogonal to said rotation axis, and a circumferential direction orthogonal to said axial direction and to said radial direction;
• said at least one brake pad comprises a backing plate that supports friction material, said backing plate comprising a plate edge that forms at least one thrust portion and at least one striker portion;
• said method further comprising coupling a first coupling portion of said band spring to a caliper body;
• placing a second thrust portion of said band spring on said at least one thrust portion of said at least one brake pad and applying an elastic action on said at least one thrust portion biasing said at least one brake pad at least away from said brake disc in the axial direction and in the radial direction;
• providing an initial gap between a third abutment portion and said at least one striker portion prior to an external action on the band spring,
• closing said gap upon initiation of said external action to the band spring by moving said third abutment portion against said striker portion of said at least one brake pad forming a support on an area of said at least one striker portion and preventing sliding of said second thrust portion;
• biasing said third abutment portion when said third abutment portion rests abutting against said at least one striker portion by a peak or buckling load;
• avoiding that said band spring permanently engages with said at least one brake pad, avoiding a bilateral constraint in said second thrust portion and third abutment portion between said band spring and said at least one brake pad.