Synchronization of timepiece resonators
AssigneeThe Swatch Group Research and Development Ltd
InventorsJean-Jacques Born, Jean-Luc Helfer, Jerome Favre
Life of this patent
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Abstract
Coupling mobile member for synchronising two resonators, each including an interface pin periodically following a plane, closed trajectory, including grooves for holding the pins equidistant from an axis on a structure subjected to a torque about the axis, on which the grooves are coplanar grooves, radial with respect to the axis, for reception of the pins in symmetrical pairs with respect to a main, straight groove passing through the axis, in a plane perpendicular to the axis, and in which slides a main slide-block, which cooperates with a plurality of bars, each hinged on one side to one of the pins, and hinged on the other side to the main slide-block.
Claims17
A coupling mobile member for synchronisation of a plurality of timepiece resonators having the same frequency and each including an interface pin arranged to transmit a torque to the respective resonator thereof, and each said interface pin periodically following a plane, closed trajectory, wherein said coupling mobile member includes, integral with a structure that pivots about a pivot axis and includes means for receiving a torque, means for holding said pins at an equal distance from said axis, wherein said holding means of said coupling mobile member include, integral with said structure, a plurality of grooves each substantially radial with respect to said axis, in a plane perpendicular to said axis, for reception of each said pin, said grooves being disposed symmetrically in pairs with respect to a main, straight groove passing through said axis, in a plane perpendicular to said axis, and inside said main groove, a main slide-block slides freely and cooperates with a plurality of bars each arranged to be hinged on one side to one of said pins, and hinged on the other side to said main slide-block.
Dependencies are inferred from the claim text.