Abrégé

The resonator for a timepiece includes a support structure permitting mounting the resonator in a timepiece, a first and a second balance arranged to oscillate in the same plane, at least one first and second elastic element respectively connecting the first and second balances to the support structure, the configuration of the elastic elements determining two parallel elastic pivoting axes for the two balances, and the elastic elements forming a resilient element angularly returning each of the balances towards an inoperative position. The resonator further includes a strap coupling the first and the second balance. The points joining the strap to the first and the second balance respectively are located in the same plane parallel to the plane of oscillation of the balances. When the balances are in their inoperative position, these joining points are symmetrical with respect to a center of symmetry midway between the geometrical pivoting axes.

Classes IPC  ?

• G04B 17/06 - Oscillateurs à spiral, p. ex. balancier

Abrégé

The resonator for a timepiece includes a support structure (2, 4) that is intended to allow the resonator to be mounted in a timepiece, a first and a second balance (6, 8) which are arranged to oscillate in one and the same plane, at least one first elastic element that is arranged to link the first balance (6) to the support structure, at least one second elastic element that is arranged to link the second balance (8) to the support structure, the configuration of the elastic elements determining two parallel elastic pivoting axes (X', X'') for the two balances, and the elastic elements forming elastic return means that are arranged to angularly return each of the balances to a rest position. The resonator further includes a sling (116, 118) that is arranged to couple the first and the second balance (6, 8), the sling being attached to the first and to the second balance. The joining points at which the sling joins with the first and with the second balance, respectively, are located in one and the same plane that is parallel to the plane of oscillation of the balances. When the balances are in their rest position, these joining points are symmetrical with respect to a centre of symmetry (O) that is located halfway between the two geometric pivoting axes (X', X'').

Classes IPC  ?

• G04B 17/04 - Oscillateurs agissant par l'effet d'un ressort

Abrégé

The oscillating system has a mechanical resonator comprising a flexible rod (111a) that is held at one end and designed to oscillate in a plane about a balanced position. The other end of the rod bears a rigid cover (114) which itself bears an articulation (123, 125) designed to mechanically connect the rod to a pallet (117). When the rod is in the balanced position, the articulation is substantially aligned between the pivot (119) and a point of the rod (111a) that is situated at a given distance from the free end of the latter, the given distance being equal to the quotient of the value of the deflection at a given time, when the rod is not in the balanced position, divided by the value at the same time of the derivative of the deformation of the rod evaluated at the distal end of the rod.

Classes IPC  ?

• G04B 17/04 - Oscillateurs agissant par l'effet d'un ressort

Abrégé

The present invention relates to a barrel spring (10) for a mechanism driven by a mainspring, in particular for a timepiece, consisting of a unitary ribbon of metallic glass. The object of the invention is to integrate at least one additional function to the spring function, implemented by a functional portion integrated in the spring.

Classes IPC  ?

• G04B 1/10 - Mécanismes moteurs à ressort moteur
• G04B 1/14 - Ressorts moteursBrides pour ressorts moteurs
• G04B 1/16 - BarilletsArbresArbres de barillets
• G04B 1/18 - Structures pour le raccordement des extrémités des ressorts moteurs au barillet ou à l'arbre
• G04D 3/00 - Machines ou outils de travail des matériaux pour la fabrication ou la réparation des montres