Horological torque limiting mechanism

An internal torque limiting mechanism for a horological movement, said torque limiting mechanism comprising a first wheel including a first felloe and arranged to pivot about a first axis of rotation relative to a structure or a plate or a bridge, said first wheel including at least a first elastic arm which, in the free state of said first wheel, projects along the direction of said first axis of rotation relative to said first felloe, and at least a second wheel including a second felloe and arranged to pivot relative to said structure about a second axis of rotation parallel or merged with said first axis of rotation overlapping at least partially with said first wheel, where said second wheel includes at least a second surface arranged to engage in frictional pressure with said first wheel for the relative actuation thereof with one another, and where said mechanism includes a travel limiter fastened to said structure and which is arranged to hold said second wheel on said first wheel for the engagement thereof in frictional pressure in certain relative angular positions, and where said second wheel and/or said travel limiter and/or said structure includes at least one relief forming a ramp, and which projects along a direction parallel or merged with that of said first axis of rotation, and arranged to, in certain relative angular positions with respect to said first wheel, engage in frictional pressure with at least said first elastic arm of said first wheel, and, in further relative angular positions, allow a frictionless relative travel between said first wheel and the component bearing said relief, wherein said second wheel includes at least a second surface arranged to engage in frictional pressure with said first wheel for the relative actuation thereof with one another, a second arm forming a ramp and which, in the free state of said second wheel, projects along the direction of said second axis of rotation relative to said second felloe.