G04B15/04

Contactless cylinder escapement
09915922 · 2018-03-13 · ·

Magnetic cylinder escapement, comprising a regulating wheel set cooperating with an escape wheel comprising actuators (6) at the periphery of a first disc, each comprising a first impulse part and a second stop part, generating or guiding magnetic fields parallel to the pivot axes, and arranged to work in attraction, via the first disc, with a second non-magnetically charged, soft ferromagnetic disc integral with the regulating wheel set, the mechanism comprising a conductive ferromagnetic plate, underneath but not in contact with the first disc, comprising a cutout surrounding, in a contactless manner, the periphery of the second disc, with a variable air-gap, and closing a magnetic circuit comprising an actuator, the first disc, the second disc, and a structure in which the escape wheel pivots and which carries the plate.

Contactless cylinder escapement mechanism for timepieces

An escapement mechanism including an escape wheel subjected to a rotational torque and a resonator integral with a pivotally mounted regulating wheel set. The escape wheel includes plural actuators regularly spaced on a periphery thereof, each arranged to cooperate directly with at least a first track of the regulating wheel set. Each actuator includes a first magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive surface, to cooperate with the first track which is magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive, to repel or attract each first surface of the actuator, and each actuator includes a mechanical stop member to cooperate, in an end-of-travel stop arrangement, with at least a first complementary stop surface included in the regulating wheel set to constitute therewith an autonomous escapement mechanism.

CONTACTLESS CYLINDER ESCAPEMENT
20170168454 · 2017-06-15 · ·

Magnetic cylinder escapement, comprising a regulating wheel set cooperating with an escape wheel comprising actuators (6) at the periphery of a first disc, each comprising a first impulse part and a second stop part, generating or guiding magnetic fields parallel to the pivot axes, and arranged to work in attraction, via the first disc, with a second non-magnetically charged, soft ferromagnetic disc integral with the regulating wheel set, the mechanism comprising a conductive ferromagnetic plate, underneath but not in contact with the first disc, comprising a cutout surrounding, in a contactless manner, the periphery of the second disc, with a variable air-gap, and closing a magnetic circuit comprising an actuator, the first disc, the second disc, and a structure in which the escape wheel pivots and which carries the plate.

CONTACTLESS CYLINDER ESCAPEMENT
20170168454 · 2017-06-15 · ·

Magnetic cylinder escapement, comprising a regulating wheel set cooperating with an escape wheel comprising actuators (6) at the periphery of a first disc, each comprising a first impulse part and a second stop part, generating or guiding magnetic fields parallel to the pivot axes, and arranged to work in attraction, via the first disc, with a second non-magnetically charged, soft ferromagnetic disc integral with the regulating wheel set, the mechanism comprising a conductive ferromagnetic plate, underneath but not in contact with the first disc, comprising a cutout surrounding, in a contactless manner, the periphery of the second disc, with a variable air-gap, and closing a magnetic circuit comprising an actuator, the first disc, the second disc, and a structure in which the escape wheel pivots and which carries the plate.

CONTACTLESS CYLINDER ESCAPEMENT MECHANISM FOR TIMEPIECES

An escapement mechanism including an escape wheel subjected to a rotational torque and a resonator integral with a pivotally mounted regulating wheel set. The escape wheel includes plural actuators regularly spaced on a periphery thereof, each arranged to cooperate directly with at least a first track of the regulating wheel set. Each actuator includes a first magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive surface, to cooperate with the first track which is magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive, to repel or attract each first surface of the actuator, and each actuator includes a mechanical stop member to cooperate, in an end-of-travel stop arrangement, with at least a first complementary stop surface included in the regulating wheel set to constitute therewith an autonomous escapement mechanism.