摘要:
A timepiece including a first resonator oscillating at a first frequency and connected by a main gear train to a main energy source via a main escapement, a second resonator oscillating at a second frequency which is lower than the first frequency and cooperating with the main escapement in order to synchronize maintenance of the first resonator to the second frequency.
摘要:
A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component.
摘要:
A timepiece includes a first resonator oscillator oscillating at a first frequency and connected by a first gear train to an energy source and a second oscillator oscillating at a second frequency and connected to a second gear train. The second gear train is connected to the first gear train by an elastic coupling device, in order to synchronize the rate of the two oscillators using the same energy source.
摘要:
The invention concerns a method of making a controlled or reduced contact or contactless transmission in a timepiece movement.At least one pair of opposing cooperating surfaces of said timepiece movement, one of which drives the other or is supported thereby, is made or transformed by applying a surface or through treatment conferring an electrostatic and/or magnetic charge of the same polarisation and/or magnetisation on said opposing cooperating surfaces, such that said opposing components tend to repel each other when they are moved closer to each other.Said treatment consists in creating or depositing at least one thin layer on said cooperating surface and/or on said opposing cooperating surface.The invention also concerns a timepiece mechanism incorporating at least one pair of opposing components, one of which drives the other or is supported thereby, said pair being made or transformed by implementing this method.
摘要:
The invention relates to a timepiece (1) comprising a first oscillator (15) oscillating at a first frequency and connected by a first gear train (5) to an energy source (9) to display the time and a chronograph system (51) comprising a second gear train (25) connected to the first gear train (5) via a coupling device (44) for selectively measuring a time. According to the invention, the chronograph system (51) further comprises a second oscillator (35), which is connected to the second gear train (25) and oscillates at a second frequency. Moreover, the second gear train (25) is connected to the first gear train (5) by an elastic coupling means (41), in order to synchronise the rate of the two oscillators (15, 35) using the same energy source (9) when the coupling device authorises said time measurement.The invention concerns the field of mechanical timepieces comprising a chronograph system.
摘要:
A temperature compensated resonator including a body used in deformation, the core of the body including a first material. The body includes at least a first and second coating allowing the resonator to have substantially zero first and second order temperature coefficients. The temperature compensated regulator can be used in the field of time and frequency bases.
摘要:
The resonator (1) for a timepiece results from coupling a first, low frequency resonator (2) with a second, higher frequency resonator (3). The first resonator (2) has a first balance (4) associated with a first balance spring (5). The second resonator (3) has a second balance (6) associated with a second balance spring (7). A third balance spring is arranged between the first (4) and second (6) balances to couple said first (2) and second (3) resonators.
摘要:
The balance spring is made from a photostructurable glass plate by UV irradiation, thermal treatment and etching, said glass having a Young's modulus thermal coefficient CTE0. The value CTE0 of selected zones of the balance spring are altered to a value CTEi by UV irradiation through one or several masks, possibly completed by a thermal treatment.