G04B17/28

HOROLOGICAL MOVEMENT COMPRISING A MEMBER PROVIDED WITH MEANS FOR VARIABLY ADJUSTING THE INCLINATION
20230185243 · 2023-06-15 · ·

A horological movement including a plate (33) extending substantially in a first plane and being configured to support the other parts of the movement, such as a member extending at least in part along a second plane. The horological movement includes variable adjustment means (30, 40, 130) for variably adjusting the inclination of the member (1, 10, 100) relative to the plate (33). The variable adjustment means includes an inclining bridge (7, 57, 107) on which the member (1, 10, 100) is mounted, the inclining bridge (7, 57, 107) being inclining relative to the plate (33), such that the second plane forms an angle of variable value with the first plane of the plate (33).

HOROLOGICAL MOVEMENT COMPRISING A REGULATING MEMBER PROVIDED WITH MEANS FOR VARIABLY ADJUSTING THE INCLINATION
20230185244 · 2023-06-15 · ·

A horological movement including a plate (33) extending substantially in a first plane and configured to support other parts of the movement, the movement including drive means provided with a gear train (98), a regulating member (1) provided with an inertial mass (3), a guide and an elastic return member (4) for the inertial mass (3) configured to cause it to oscillate in a second plane, as well as an escapement mechanism (25) cooperating with the inertial mass (3), the regulating member (1) being arranged on the plate. A variable adjustment device (30) variably adjusts the inclination of the regulating member (1) relative to the plate (33), such that the second plane of the inertial mass (3) form an angle of variable value with the first plane of the plate (33).

Rotating resonator with flexure bearing maintained by a detached lever escapement

Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element including an impulse pin cooperating with a fork of the lever, subjected to the return force of two flexible strips attached to the plate, defining a virtual pivot having a main axis (DP), the lever pivoting about a secondary axis (DS), and the lift angle (β) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio I.sub.B/I.sub.A between the inertia I.sub.B of the inertia element with respect to the main axis (DP) and the inertia I.sub.A of the lever with respect to the secondary axis (DS) is greater than 2Q.Math.α.sup.2/(0.1.Math.π.Math.β.sup.2), where α is the lift angle of the lever corresponding to the maximum angular travel of the fork.

Rotating resonator with flexure bearing maintained by a detached lever escapement

Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element including an impulse pin cooperating with a fork of the lever, subjected to the return force of two flexible strips attached to the plate, defining a virtual pivot having a main axis (DP), the lever pivoting about a secondary axis (DS), and the lift angle (β) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio I.sub.B/I.sub.A between the inertia I.sub.B of the inertia element with respect to the main axis (DP) and the inertia I.sub.A of the lever with respect to the secondary axis (DS) is greater than 2Q.Math.α.sup.2/(0.1.Math.π.Math.β.sup.2), where α is the lift angle of the lever corresponding to the maximum angular travel of the fork.

Rotating resonator with flexure bearing maintained by a detached lever escapement

Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) with a quality factor Q including an inertia element (2) comprising an impulse pin (6) integral with an inertia element (2) and cooperating with a fork (8) of the lever (7), this inertia element (2) being subjected to the action of elastic return means (3) directly or indirectly fixed to the plate (1) and being arranged to cooperate indirectly with an escape wheel set (4) comprised in the escapement mechanism (200), this resonator mechanism (100) is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips (5) attached to the plate (1), defining together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and the fork (8) is enlarged in comparison to the fork of a conventional Swiss lever.

Rotating resonator with flexure bearing maintained by a detached lever escapement

Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) with a quality factor Q including an inertia element (2) comprising an impulse pin (6) integral with an inertia element (2) and cooperating with a fork (8) of the lever (7), this inertia element (2) being subjected to the action of elastic return means (3) directly or indirectly fixed to the plate (1) and being arranged to cooperate indirectly with an escape wheel set (4) comprised in the escapement mechanism (200), this resonator mechanism (100) is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips (5) attached to the plate (1), defining together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and the fork (8) is enlarged in comparison to the fork of a conventional Swiss lever.

Magnetic or electrostatic pivoting of a mobile timepiece element

A timepiece sub-assembly including a mobile timepiece element including first and second annular and opposite peripheral surfaces of revolution about a same pivot axis, and a device for guiding pivoting about a theoretical axis of a timepiece mechanism. The first surface is magnetically or electrically charged, and the device includes at least three first surfaces regularly arranged around the theoretical axis, oppositely magnetically or respectively electrically charged to the first surface to repulse it at a first interface. In a watch, the second surface is magnetically or electrically charged, and the device includes at least three second surfaces regularly arranged around the theoretical axis, oppositely magnetically or electrically charged to the second surface to repulse it at a second interface.

TIMEPIECE RESONATOR MECHANISM

Watch or movement including a timepiece resonator movement including two RCC flexural pivots mounted in series about an intermediate rotary support and having the same virtual pivot axis, each comprising two straight flexible strips of the same length, whose clamping points opposite to this pivot axis are at the same distance with respect to this axis, and which define linear directions, forming angles, in pairs, with this virtual pivot axis, whose value expressed in degrees is comprised between:


109.5+5/[(D/L)−(2/3)] and 114.5+5/[(D/L)−(213)],

or more particularly between 107+5/((D/L)−(2/3)) and 112+5/((D/L)−(2/3)), this timepiece resonator mechanism is in an advantageous variant a one-piece temperature-compensated silicon resonator.

DEVICE FOR TEMPORARILY STOPPING THE OPERATION OF A MECHANICAL WATCH
20220269220 · 2022-08-25 · ·

A device (100) to temporarily stop the operation of a mechanical watch, in particular when time resetting the watch. The device includes at least three levers (4) assembled and disposed in a circle on a plate of the mechanical horological movement. At least one action member (2) of the levers (4) is provided to switch them together from a rest mode to an active mode to act on a stop lever (17) of the device. The stop lever is arranged to temporarily stop a balance spring (14) of the mechanical movement. The activation of the stop lever (17) is performed by at least one of the levers (4) regardless of the position of the stop lever (17).

Method for making a flexure bearing mechanism for a mechanical timepiece oscillator

A method for making a flexure bearing for an oscillator with an inertial element oscillating in a plane supported by flexible strips fixed to a stationary support returning it to a rest position includes: forming the bearing with basic strips in superposed levels, each having an aspect ratio of less than 10; breaking down the number of basic levels into a plurality of sub-units, each including one or two strips joining a basic support and a basic inertial element, which are made by etching substrates; assembling the sub-units by joining their basic inertial elements; and fixing the basic supports to the support, directly or via translational tables along one or two in-plane translational degrees of freedom, of lower translational stiffness than that of the sub-unit.