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AssigneeThe Swatch Group Research and Development Ltd
InventorsMohammad Hussein KAHROBAIYAN, Yvan FERRI, Alexandre DIDIER, Lionel PARATTE, Jean-Jacques BORN
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A piezoelectric resonator for a rotary motor, the resonator including a stationary base and an oscillating mass extending around a longitudinal axis, the oscillating mass having an inertia-block. The resonator includes a flexible blade guide connecting the oscillating mass to the base, so as to be able to cause the oscillating mass to oscillate about a centre of rotation in a balance movement, the flexible guide including a first RCC-type pivot provided with an intermediate moving element, a first pair of flexible blades connecting the base to the intermediate moving element, and a second pair of flexible blades forming a second RCC-type pivot connecting the intermediate moving element to the oscillating mass, the piezoelectric resonator including a first flexible blade connecting the intermediate moving element to the base, the first flexible blade including at least in part a piezoelectric material that can deform the first flexible blade and cause the oscillating mass to oscillate.
A piezoelectric resonator for a rotary piezoelectric motor, the resonator comprising a stationary base and an oscillating mass being provided with at least one inertia-block arranged in opposite positions, wherein the resonator comprises a flexible blade guide connecting the oscillating mass to the base, so as to be able to cause the oscillating mass to oscillate about a centre of rotation in a balance movement, the flexible guide comprising a first RCC-type pivot provided with an intermediate moving element and a first pair of flexible blades connecting the base to the intermediate moving element, and a second pair of flexible blades forming a second RCC-type pivot connecting the intermediate moving element to the oscillating mass, the piezoelectric resonator comprising a first flexible blade connecting the intermediate moving element to the base, the first flexible blade including at least in part a piezoelectric material that can be electrically actuated to deform the first flexible blade and cause the oscillating mass to oscillate.
Dependencies are inferred from the claim text.