G04B13/00

Timepiece movement and timepiece

A timepiece movement includes a control unit that determines a position of an indicating hand by detecting a rotation state of a rotor, and a train wheel that transmits a drive force of a stepping motor to the indicating hand, and that has a first gear, and a second gear and a third gear which mesh with the first gear. The first gear has a reference load unit that causes fluctuations in a load applied to the rotor in each case of meshing with the second gear and the third gear. A first line segment which connects a center of the first gear and a center of the second gear to each other forms an angle smaller than 180° with a second line segment which connects the center of the first gear and a center of the third gear.

Torque smoothing for a timepiece, particularly with a striking mechanism
11435696 · 2022-09-06 · ·

Timepiece with a movement driving an output wheel set, a passing strike or minute repeater mechanism, including a strike drive wheel set including a release ratchet with which cooperates a click for execution of a strike function, a strike uncoupling lever for moving any click away from the strike wheel set, including a first lever carrying the click and its spring, the output wheel set activating a second lever, the pivoting of which causes the first lever to pivot, the striking mechanism includes a torque smoothing jumper, which is returned by a first spring into abutment on the output wheel set, in order to use, when the second lever is not in mesh with the output wheel set, an equivalent torque to that which it uses when meshed with this output wheel set.

Torque smoothing for a timepiece, particularly with a striking mechanism
11435696 · 2022-09-06 · ·

Timepiece with a movement driving an output wheel set, a passing strike or minute repeater mechanism, including a strike drive wheel set including a release ratchet with which cooperates a click for execution of a strike function, a strike uncoupling lever for moving any click away from the strike wheel set, including a first lever carrying the click and its spring, the output wheel set activating a second lever, the pivoting of which causes the first lever to pivot, the striking mechanism includes a torque smoothing jumper, which is returned by a first spring into abutment on the output wheel set, in order to use, when the second lever is not in mesh with the output wheel set, an equivalent torque to that which it uses when meshed with this output wheel set.

Display mechanism with zero reset function

A display mechanism a wheel carrying, constrained to rotate with it, a first wheel and a snail-shaped cam, the mechanism having an active first state in which the first wheel is driven in rotation by a driving wheel and a zero reset second state in which it is no longer driven to allow it to return to a predefined position, associated with a predefined position of the display member, the display mechanism further including a feeler-spindle adapted to cooperate with the perimeter of the cam, the feeler-spindle and the perimeter of the cam being adapted and sized so that the feeler-spindle exerts on the cam, in the second state, a return force having a non-radial component adapted to return the first wheel to its predefined position.

DIGITAL DISPLAY AND DIGITAL TIME DEVICE
20210325830 · 2021-10-21 ·

A digital display and a digital time device are provided, which includes a housing, a drive assembly, display assemblies and a mainboard assembly. The housing is provided with seven windows arranged to form the shape of the character “custom-character”. The mainboard assembly is fixedly connected to the housing and is located behind the windows. Seven curved grooves are provided inside of the drive assembly. The display assemblies include display sheets and pull rods. One end of each pull rod is fixedly connected to the display sheets. The display sheets are slidingly connected to the mainboard assembly. There are seven display assemblies. Each pull rod is slidingly connected to the curved grooves in one-to-one correspondence, and each display sheet is one-to-one correspondence with the windows. The present invention can achieve many advantages, such as low power consumption, great waterproof, strong moisture resistance capabilities and high stability.

DIGITAL DISPLAY AND DIGITAL TIME DEVICE
20210325830 · 2021-10-21 ·

A digital display and a digital time device are provided, which includes a housing, a drive assembly, display assemblies and a mainboard assembly. The housing is provided with seven windows arranged to form the shape of the character “custom-character”. The mainboard assembly is fixedly connected to the housing and is located behind the windows. Seven curved grooves are provided inside of the drive assembly. The display assemblies include display sheets and pull rods. One end of each pull rod is fixedly connected to the display sheets. The display sheets are slidingly connected to the mainboard assembly. There are seven display assemblies. Each pull rod is slidingly connected to the curved grooves in one-to-one correspondence, and each display sheet is one-to-one correspondence with the windows. The present invention can achieve many advantages, such as low power consumption, great waterproof, strong moisture resistance capabilities and high stability.

VARIABLE-GEOMETRY TIMEPIECE DISPLAY MECHANISM WITH RESILIENT HAND
20210223740 · 2021-07-22 · ·

A variable timepiece display mechanism includes a resilient hand with a drive pipe integral with a single-piece flexible strip including flexible segments joined at tips, a first segment thereof extends between the first pipe and a first tip. The mechanism also includes a driver for driving the pivoting of the pipe, and a stressor for stressing the first flexible segment in order to vary the position of the first tip relative to the output axis, as a function of the forces applied to the flexible strip. The drier and/or the stressor includes a first shaped gear train and/or a second shaped gear train in order to accelerate, stabilize the speed of, or slow at least the pipe over a part of the angular travel thereof.

Timepiece display mechanism comprising at least one resilient hand

A timepiece resilient hand with drive pipes at the ends thereof, including a display index which is at a variable distance from the pipes, and including flexible segments between each pipe and the index each with a web having a substantially constant section, at least one flexible segment thereof includes discontinuous elements projecting from the web thereof in a plane perpendicular to the axis of the pipes and defining, along this web, an alternation of sections, the stiffnesses thereof per unit of length are different from one another, and/or at least one web includes a succession of areas of opposite concavities, projecting on a plane perpendicular to the axis of the pipes.

Horological display mechanism with elastic hand
11841685 · 2023-12-12 · ·

A horological display mechanism (10) with elastic hand (1), including means for driving barrels (2; 4) coaxial at the ends of a flexible blade (3), including a differential mechanism with an input frame (180) including an input toothing (182), free to rotate and carrying an intermediate wheel (103) and a satellite (101) meshing with each other, this satellite (101) including an eccentric finger (1010) traveling the track (105) of a fixed cam (104), and returned against it by the elasticity of the elastic hand (1), the input frame (180) including a shaft (185) carrying, coaxially, a first cannon-pinion (1020) including the first barrel (2) and a second cannon-pinion (1040) including the second barrel (4), the toothing (1049) of one of which meshes with the toothing (1039) of the intermediate wheel (103), and the toothing (1029) of the other one of which meshes with the toothing (1019) of the satellite (101).

RIGID HOROLOGICAL COMPONENT FOR AN OSCILLATOR MECHANISM OR FOR AN ESCAPEMENT MECHANISM AND HOROLOGICAL MOVEMENT INCLUDING SUCH A COMPONENT
20210191327 · 2021-06-24 · ·

A rigid horological component (6, 7, 8) for an oscillator mechanism or for an escapement mechanism of a horological movement, the component extending along a principal plane (P) and including at least a part made of a composite material (1), the composite material (1) including a matrix (2) and a multitude of nanotubes or nanowires (3) distributed in the matrix (2), the nanotubes or nanowires (3) being juxtaposed and disposed substantially parallel with an axis (A) substantially perpendicular to the plane (P) of the component, the matrix (2) includes a rigid material (4) to fill the interstices and join the nanotubes or nanowires (3) to one another, the material (4) having rigid mechanical properties to block the elastic deformation of the component, the rigid material (4) comprised in the component having a Young's modulus greater than 2 GPa.