Horological movement comprising an escapement provided with a magnetic system

A horological movement comprising a mechanical resonator and an escapement which is associated with said mechanical resonator, the escapement comprising an escapement wheel and a pallet assembly separate from the mechanical resonator and of which the axis of rotation is different from that of the mechanical resonator;

• the mechanical resonator being coupled with the pallet assembly such that, when said mechanical resonator has an oscillation, the pallet assembly is subject to an alternating movement between two rest positions wherein the pallet assembly remains alternately during successive time intervals;
• the pallet assembly comprising at least one magnetic pallet-stone formed of a magnet and the escapement wheel comprising a periodic magnetised structure which defines a plurality of increasing gradients of magnetic potential energy for said magnetic pallet-stone, each of these increasing gradients of magnetic potential energy being configured such that said magnetic pallet-stone can climb it when the pallet assembly is in a corresponding rest position of the two rest positions and that a force torque supplied to the escapement wheel corresponds to a normal operation of the horological movement, said force torque being equal to a nominal force torque or within a range of values which is selected for the normal operation of the horological movement, said magnetic pallet and the periodic magnetised structure being arranged such that the pallet assembly is subject to a magnetic force impulse in the direction of the alternating movement thereof, after said magnetic pallet-stone has climbed any one of said increasing gradients of magnetic potential energy, when the pallet assembly tips from one of the two rest positions having enabled said magnetic pallet-stone to climb said any one increasing gradient of magnetic potential energy to the other rest position;
• wherein the pallet assembly comprises at least one mechanical banking and the escapement wheel comprises protruding parts;
• and wherein the pallet assembly and the escapement wheel are arranged such that, when said force torque is equal to said nominal force torque or has a value within at least an upper part of said value range and when the pallet assembly has said alternating movement, one of said protruding parts of the escapement wheel is subjected to at least one shock on a mechanical banking of said at least one mechanical banking after said magnetic pallet-stone has climbed any one of said increasing gradients of magnetic potential energy following a tipping of the pallet assembly in the rest position enabling said magnetic pallet-stone to climb said any gradient of magnetic potential energy, said at least one shock occurring so as to dissipate at least partially a kinetic energy of the escapement wheel acquired following said tipping.