Patent classifications
G04B13/007
Horological display mechanism with elastic hand
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).
TIMEPIECE 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
VARIABLE-GEOMETRY TIMEPIECE DISPLAY MECHANISM WITH RESILIENT HAND
A variable timepiece display mechanism includes a resilient hand with two drive pipes integral with a one-piece flexible strip includes a tip or an index, with a driver for driving the pivoting of the pipe, and a stressor for stressing the strip so as to vary the position of the tip relative to the axis of the pipes, which includes an accelerator or decelerator device arranged such that it accelerates, or stabilizes the speed of, or slows down the first pipe and/or the second pipe over at least part of the angular travel thereof, which includes a device with a first differential gear on the drive gear train of the first pipe and/or a second differential gear on the drive gear train of the second pipe, and at least one cam forming an input of a differential gear
Variable-geometry timepiece display mechanism with resilient hand
A variable timepiece display mechanism includes a resilient hand with two drive pipes integral with a one-piece flexible strip includes a tip or an index, with a driver for driving the pivoting of the pipe, and a stressor for stressing the strip so as to vary the position of the tip relative to the axis of the pipes, which includes an accelerator or decelerator device arranged such that it accelerates, or stabilizes the speed of, or slows down the first pipe and/or the second pipe over at least part of the angular travel thereof, which includes a device with a first differential gear on the drive gear train of the first pipe and/or a second differential gear on the drive gear train of the second pipe, and at least one cam forming an input of a differential gear.
TIMEPIECE DISPLAY MECHANISM WITH A RESILIENT HAND
A timepiece display mechanism with a resilient hand including a first and second device for driving, about an output axis, a first and a second pipe mounted at the ends of a flexible strip, and including a display index distant from the pipes, these drive devices being arranged to deform the flexible strip, by varying the angular position of one pipe with respect to the other about the output axis, and to vary the radial position of the display index with respect to this axis, this mechanism includes a first differential on the drive train of the first pipe, one input of which is formed by a first cam, and a second differential on the drive train of the second pipe, one input of which is formed by a second cam.
Variable-geometry timepiece display mechanism with resilient hand
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.
ACTUATING MECHANISM FOR A FLEXIBLE DISPLAY HAND
A mechanism for actuating a flexible display hand including a first drive pipe and a second drive pipe connected to a first end of a second flexible arm, the first and second flexible arms being connected to one another by a tip at their second end, the first pipe being mounted at a defined first prestressing angle, and the second pipe being mounted at a defined second prestressing angle in the opposite direction to that of the first pipe, so that the elastically prestressed flexible display hand constantly maintains the entire actuating mechanism under tension during normal operation of the actuating mechanism, the actuating mechanism including a first cannon-pinion onto which the first drive pipe of the flexible display hand is driven.
TIMEPIECE TRANSMISSION MECHANISM WITH REDUCED COUPLING FORCE
A timepiece transmission mechanism, with a differential mechanism with inputs or outputs including a first wheel set cooperating with a first train and a second wheel set cooperating with a second train, this differential mechanism kinematically connecting the first wheel set and second wheel set in the coupling position, and separating them in the uncoupling position, the first wheel set carrying a planet wheel set which meshes with a toothing of an arbor integral in rotation with the second wheel set, and with a crown-wheel forming another input or output of the differential mechanism, which includes control means arranged to lock or release the crown-wheel to perform the coupling or the uncoupling function, depending on the position given to the control means by a selector arranged to cooperate with an actuator of a timepiece movement, or to be operated by a user.
Horological mechanism with counting chain
A horological mechanism (110), notably a horological movement or chronograph module, including a counting chain (100) having an epicycloidal train (31, 32, 33, 34) including a first sun wheel (33) fixed to the frame.
Timepiece display device on several wheels
A timepiece including a timepiece mechanism (200) and a display device (100) for displaying a magnitude relating to the timepiece mechanism (200), in combination on wheels (1 2) driven by rotational movements in the same direction of rotation by at least one output (3; 4) of the timepiece mechanism (200), at least one wheel (1; 2) being integral in rotation with an indicator (60) to display a representation of this magnitude by the angular difference between the wheels (1; 2) or between a wheel (1; 2) and a fixed scale, the timepiece mechanism (200) driving, at a given time, a single wheel (1; 2) by a single output (3; 4), the display device (100) driving one of the wheels (1; 2) by another, and the display device and/or the timepiece mechanism can disengage in at least one end-of-travel position of a wheel (1; 2).