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US 9,030,070 B2Granted
Magnetic and/or electrostatic pivot
AssigneeMontres Breguet S.A.
InventorsSylvain Marechal, Davide Sarchi, Olivier Karlen, Arnaud Todeschini
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AssigneeMontres Breguet S.A.
InventorsSylvain Marechal, Davide Sarchi, Olivier Karlen, Arnaud Todeschini
Estimating the term…
A method and device for orienting a timepiece component on both ends of which two magnetic/electrostatic fields each attract it onto a pole piece, with an unbalance in the intensity of the fields around the component, in order to create a differential in the forces thereon and to press one of the ends onto a contact surface of one of the pole pieces, and to hold the other end at a distance from the other pole piece. A magnetic/electrostatic pivot includes such a component with two ends. It includes a guide device with surfaces of two pole pieces each attracted by a magnetic/electrostatic field transmitted by one of the ends, or generating a magnetic/electrostatic field attracting one of the ends, the magnetic/electrostatic forces exerted on the two ends are of different intensity, in order to attract only one end into contact with only one of the pole piece surfaces.
A method for orienting a timepiece component to guide the pivoting of said component, which is made of material that is at least partially magnetically or respectively electrostatically permeable, or at least partially magnetic or respectively electrostatic, and including a first end and a second end, wherein, on both sides of said first and second ends, two magnetic or respectively electrostatic fields are created, each tending to attract said component onto a pole piece, and an unbalance is created between said magnetic or respectively electrostatic fields around said component, so as to create a differential in the forces thereon in order to press one of said ends of said component onto a contact surface of one of said pole pieces, and to hold the other of said ends at a distance from a contact surface of the other pole piece, said unbalance between said magnetic or respectively electrostatic fields being created around the air gap formed by the space comprised between said contact surfaces and further wherein said magnetic or respectively electrostatic fields are asymmetrical relative to each other and of different intensity from each other.
The device for guiding the pivoting of a timepiece component made of material that is at least partially magnetically or respectively electrostatically permeable, or at least partially magnetic or respectively partially electrostatic, and including a first end and a second end, wherein it includes, at a greater air-gap distance, by the value of a determined operational play, than the distance of centers between said first end and said second end, a first surface of a first pole piece and a second surface of a second pole piece, wherein said poles pieces are arranged, either each to be attracted by a magnetic or respectively electrostatic field transmitted by one of said first end or said second end of said component, or each to generate a magnetic or respectively electrostatic field attracting one of said first end or said second end of said component, such that the magnetic or respectively electrostatic attraction forces being exerted on said component at the two ends thereof are of different intensity, so as to attract said component via one of the two ends thereof, into direct or indirect contact on only one of said surfaces of said pole pieces, said unbalance between said magnetic or respectively electrostatic fields being created around the air gap formed by the space comprised between said contact surfaces, and further wherein said magnetic or respectively electrostatic fields are asymmetrical relative to each other and of different intensity from each other.
The magnetic or respectively electrostatic pivot including a timepiece component made of material that is at least partially magnetically or respectively electrostatically permeable, or at least partially magnetic or respectively electrostatic, and which includes a first end and a second end, wherein it includes a device for guiding the pivoting of said timepiece component, including, at a greater air-gap distance, by the value of a determined operational play, than the distance of centers between said first end and said second end, a first surface of a first pole piece and a second surface of a second pole piece, wherein said poles pieces are arranged either each to be attracted by a magnetic or respectively electrostatic field transmitted by one of said first or second ends of said component, or each to generate a magnetic or respectively electrostatic field attracting one of said first or second ends of said component, such that the magnetic or respectively electrostatic attraction forces being exerted on said component at the two ends thereof are of different intensity, so as to attract said component via one of the said two ends thereof, into direct or indirect contact on only one of said surfaces of said pole pieces, and wherein said unbalance between said magnetic or respectively electrostatic fields is created around the air gap formed by the space comprised between said contact surfaces, and further wherein said electrostatic fields are asymmetrical to each other and of different intensity from each other.
Dependencies are inferred from the claim text.