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AssigneeThe Swatch Group Research and Development Ltd
InventorsGianni Di Domenico, Dominique Lechot, Jerome Favre, Benoit Legeret, Davide Sarchi
Estimating the term…
Watch with a timepiece movement, a resonator mechanism, including a magnetic escapement mechanism including an escape wheel set including a magnetized track, with a succession of areas according to a scrolling period in which its magnetic features are repeated, each area including an increasing magnetic field ramp followed by a magnetic field barrier with an increasing field and of higher field gradient that that of the ramp, the track includes a continuous, closed magnetic layer over the entire periphery of the escape wheel set, of constant thickness and variable width, whose geometry defines these magnetic field ramps and barriers, this escape wheel set cooperating with a sprung balance via a pivoting magnetic stop member comprising a pole piece arranged to cooperate alternately with an internal track and an external track of the magnetic layer.
An escape wheel set of a magnetic timepiece escapement mechanism, comprising a surface which is a largest surface of said wheel set or one of largest surfaces of said wheel set, said wheel set including at least one magnetized track, with a succession of areas according to a scrolling period in which magnetic features thereof are repeated, each of said areas including an increasing magnetic field ramp followed by a magnetic field barrier with an increasing field and whose field gradient is higher than that of said ramp, wherein said magnetized track includes a continuous, closed magnetic layer that extends over said largest surface of said escape wheel set, and whose geometry, in projection onto said largest surface, defines said magnetic ramps and magnetic field barriers.
Dependencies are inferred from the claim text.