An interaction method between a pad supporting pin and an elastic retaining element, the interaction method comprising:
- a) providing a brake pad pin and axially constraining elastic element assembly, comprising:
- a brake pad supporting pin comprising a pin body that extends along a pin axis between a head end and a tip end,
- wherein said pin axis defines an axial direction, either coincident with or parallel to said pin axis, and a radial direction transverse to said axial direction,
- wherein said pin body comprises in succession along said axial direction towards said tip end at least one pin first portion having at least one pin first portion diameter, and a pin second portion having at least one pin second portion diameter;
- and wherein said brake pad pin and axially constraining elastic element assembly comprises:
- an elastic element arranged on said pin body at least at said pin first portion,
- wherein said elastic element has at least one elastic element inner diameter and at least one elastic element outer diameter,
- wherein said at least one elastic element outer diameter is either greater than or equal to said at least one pin second portion diameter,
- and wherein
- said pin body comprises a pin third portion arranged between said pin first portion and said pin second portion, wherein said pin third portion has at least one pin third portion stretch having at least one pin third portion diameter greater than said at least one elastic element inner diameter,
- wherein said elastic element comprises an elastic element inner profile facing towards said pin body,
- wherein said pin third portion comprises a pin third portion profile that connects said pin first portion and said pin second portion,
- wherein, when said pin third portion is biased towards said elastic element, or vice versa, said pin third portion profile is wedged at least partially into said elastic element inner profile
- so that said pin third portion stretch biases said elastic element at least in the radial direction outwards with a biasing force,
- wherein said elastic element has an elastic element longitudinal extension along said axial direction, said pin third portion has a pin third portion longitudinal extension along said axial direction,
- wherein said at least one elastic element inner diameter measured in at least one elastic element first section transversal to said pin axis along the elastic element longitudinal extension is either smaller than or equal to said pin third portion diameter measured in at least a first section of pin third portion transversal to said pin axis along the pin third portion longitudinal extension, and wherein said at least one elastic element inner diameter measured in at least one elastic element second section transverse to said pin axis along the elastic element longitudinal extension is either greater than or equal to said pin third portion diameter measured in at least a second section of said pin third portion transverse to said pin axis along the elastic element longitudinal extension,
- wherein
- said second section transversal to said pin axis is in an advanced position relative to said first section transversal to said pin axis in a direction of said pin second portion, and
- and said first section of said pin third portion transversal to said pin axis is in an advanced position in the direction of said pin second portion relative to said second section of said pin third portion transverse to said pin axis,
- b) approaching said pin second portion to said elastic element, or vice versa, and
- c) during step b), wedging at least partially said pin third portion profile into said elastic element inner profile so that said pin third portion stretch biases said elastic element at least in the radial direction outwards with a biasing force.