Abstract:
Timepiece mechanism (1000) comprising a first component (1) and a second component (2) arranged to engage with each other in a relative movement along a trajectory at an interface zone (3), wherein a first track (100) of the first component (1) comprises magnetic and/or electrostatic activation components (110), arranged to exert a contactless force on the complementary magnetic and/or electrostatic activation components (210) that comprise a second track (200) belonging to the second component (2), wherein all along a relatively monotonic movement of the second track (200) with respect to the first course (100), the energy of interaction between the first component (1) and the second component (2) has a variable gradient, with at least one discontinuity position of the gradient which corresponds to a variation of said contactless force, said discontinuity position of the gradient corresponding, in one variant, to a sudden variation of the contactless force.
Abstract:
The invention relates to an escapement mechanism (10) comprising a stop (30) between a resonator (20) and two escapement trains (40A; 40B), each subjected to a torque. Each escapement train (40A; 40B) comprises a track (50) that is magnetized or ferromagnetic for a period (PD). Said stop (30) comprises at least one magnetized or ferromagnetic pole shoe (3) that is transversely movable relative to the movement of one surface (4) of the track (50). The pole shoe (3) or the track (50) creates a magnetic field between the pole shoe (3) and the surface (4), and the pole shoe (3) is placed opposite a magnetic field barrier (46) on the track (50) just before each transverse movement of the stop (30), periodically controlled by the resonator (20). The escapement trains (40A; 40B) are each arranged such as to alternately engage with the stop (30) and are linked to one another by a direct kinematic link.
Abstract:
The invention relates to a device for controlling the operation of a timepiece movement, which includes a magnetic escapement. Said device includes a resonator (90) and a magnetic escapement train (82) rotating about an axis (20). Said train includes at least one magnetic track (86) comprising a plurality of magnets (102) having an angular size greater than the radial size thereof. The resonator includes at least one magnetic element for coupling with the magnetic track. Said coupling element (92, 94) is radially extended relative to the rotational axis and has a contour comprising one portion that is substantially angularly oriented when the resonator is in the resting position thereof. When the escapement train is rotated, each magnet penetrates under the coupling element and gradually accumulates a certain magnetic potential energy. Then, said magnet comes out from under the coupling element via the abovementioned portion, and said coupling element receives a pulse located around the resting position of said coupling element.