Safety regulation for a timepiece escapement

A regulating mechanism for dissipation of energy superfluous to achievement of a function of a timepiece mechanism including a functional mobile component, said regulating mechanism arranged to control a dissipation of energy in case of racing by said functional mobile component, said regulating mechanism comprising:

• at least one rotor kinematically connected to said functional mobile component or formed by said functional mobile component, and including either a conductive rotor part which is magnetically permeable, or a magnetized rotor part which is magnetized;
• and
• on an annular area of magnetic interaction, in direct proximity and opposite to said conductive rotor part or respectively said magnetized rotor part, at least one stator including a magnetized stator part which is magnetized, or respectively a magnetically permeable conductive stator part,
• wherein, in said annular area of magnetic interaction, at least said rotor or said stator includes at least one raised area in which said rotor or said stator is movable so as to be superimposed respectively with said stator or said rotor in a direction parallel to a pivot axis of the rotor in a magnetic interaction, and in said annular area at least said rotor or said stator includes at least one hollow area, in which said rotor or said stator cannot move into magnetic interaction respectively with said stator, or said rotor, and
• wherein said regulating mechanism is arranged to control a dissipation of energy through eddy currents in said annular area in case of racing by said functional mobile component, the energy dissipation depending on the relative angular position of said rotor and said stator and only occurring when solid parts of said rotor and of said stator face each other in said annular area wherein the at least one raised area and/or the at least one hollow area has a variable thickness allowing modulation of the amplitude of dissipated energy.