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.

A horological movement including a tourbillon or karussel frame carried by an arm subjected to the torque of a first energy source, and a second energy source driving a frame pitch mobile driving the frame, and, for periodically controlling a retrograde movement of the arm, a release mobile connected to the second energy source and cooperating at a pallet-stone with an interrupted cam that a cam mobile kinematically connected to this arm includes, to allow advancing the arm in a direct direction as long as the pallet-stone is resting on the cam, and to control a rapid retrograde return of this arm during a drop of the pallet-stone between two of its successive support surfaces on the cam.

The invention provides a system for providing an indication including a meniscus mobilizer, a meniscus mobilized by at least meniscus mobilizer, and at least one fluid forming the meniscus, such that mobilization of the meniscus by the meniscus mobilize is accomplished through the use of an electro-mechanical or mechanical sub-system. The system further includes a temperature control sub-system, whereby the temperature control sub-system securitizes and optimizes a meniscus displacement velocity of the meniscus. The system further includes an element of a vehicle, such as a windshield, indicators within the cockpit of the vehicle, ship, train, motorcycle or airplane. Optionally, the element comprises a transparent glass. The indication is an indication of time or other parameter such as speed, acceleration, etc. Indication is provided by means of a fluorescent active fluid that forms the meniscus. The invention includes an ultraviolet light generator. Optionally, the ultraviolet light generator is an LED, whereby the system is not lighted in an orthogonal direction and thereby invisible to a driver of a vehicle.

Timepiece display mechanism including a cam driven by a time base, and a pivoting lever including an elastically returned feeler member following the contour of the cam and a first rack meshing with a first angular orientation wheel which drives an indicator plate synchronously or via a differential mechanism, the indicator plate projecting radially with respect to a main axis and being parallel to or coplanar with the first wheel, the display mechanism includes a connecting rod articulated at a first end to a carriage slidably mounted on the indicator plate and carrying a retractable hand, a second end of the connecting rod being pivoted on a fixed pivot or on a movable pivot comprised in an elongation wheel set driven directly or indirectly by the lever.

A timepiece includes a representation of a non-rectilinear object, the representation particularly including a movable element kinematically connected to a drive mechanism. The representation also includes at least one second movable element, the drive mechanism being arranged such that the movable elements each move, simultaneously and in synchronization, between a first and a second end position, and vice versa, the movable elements forming the representation at a first size and at a second size greater than the first, respectively, when the movable elements are in the first and second end positions thereof.

A horological display mechanism with an elastic hand (1) for driving, about a shaft (D), pipes mounted at the ends of a flexible blade (3), arranged to deform the flexible blade (3), including a mechanism acting on the drive train of the first pipe (2) and of the second pipe (4) and which includes two planetary wheels (82; 84) for driving the pipes (2; 4), and an input planet-carrier chassis (180) for driving the hand (1), and rotatable with a regulation cam (801), the track (802) of which includes a rising edge and falling edge. An elastic arm (803) has a distal end which cooperates with the track and a rising edge of which raises the elastic arm (803) away from the axis of the cam to consume torque, and a falling edge which makes the elastic arm move back towards the axis to restore torque to the system.

The invention is a two-stage speed increaser arrangement comprising force transmission members having a first, second, third and fourth pitch surface (100A, 100B, 100a, 100b), wherein the first pitch surface (100A) and the third pitch surface (100a) having a common first line segment (102A) and the second pitch surface (100B) and wherein the fourth pitch surface (100b) having a common second line segment (102B).

The two-stage speed increaser arrangement is characterised in that considering as an origin (T1), of an orthogonal coordinate system in a plane (104) perpendicular to the second line segment (102B), a projection of the second line segment (102B) to the plane (104), and considering that the Y axis of the coordinate system is pointing in the direction of a projection point (TO) of a point (D) of the first line segment (102A) to the plane (104), the following Formula 1 is satisfied at all times for the arrangement, in a coordinate system defined for each point (D) of the first line segment (102A):

x(((y′+d)x−x′y)(x.sup.2+y.sup.2−dy)+d.sup.2xy)≥0,  Formula 1

wherein
d is the distance of the projection point (T0) from the origin (T1),
x and y are the coordinates of a projection point (K), as projected to the plane (104), of an arbitrary tooth contact point (P) within any tooth contact region of the first pitch surface (100A) and the third pitch surface (100a), and
x′ and y′ are the coordinates of the projection point (K′), as projected to the plane (104), of an arbitrary tooth contact point (P′) situated along any tooth contact region of the second pitch surface (100B) and the fourth pitch surface (100b).

The invention is furthermore a gear train satisfying the above formula.

A timepiece with a double-sided display, including a first display member and a second display member coaxial to the first display member and integral therewith with a first common arbor. The centers of mass of the first display member and the second display member are, in projection on a plane perpendicular to their common axis. The first display member and/or the second display member is arranged to display a visual animation, and is movable above a back, and, either above a mask partially and incompletely covering the back.

A horological display mechanism with an elastic hand (1) for driving, about a shaft (D), pipes mounted at the ends of a flexible blade (3), arranged to deform the flexible blade (3), including a mechanism acting on the drive train of the first pipe (2) and of the second pipe (4) and which includes two planetary wheels (82; 84) for driving the pipes (2; 4), and an input planet-carrier chassis (180) for driving the hand (1), and rotatable with a regulation cam (801), the track (802) of which includes a rising edge and falling edge. An elastic arm (803) has a distal end which cooperates with the track and a rising edge of which raises the elastic arm (803) away from the axis of the cam to consume torque, and a falling edge which makes the elastic arm move back towards the axis to restore torque to the system.

Aspects of the disclosure provide a hybrid smartwatch that incorporates digital technology with an analog timepiece in a wristwatch form factor. A digital display layer of a non-emissive material is configured to present notices, data, content and other information. An analog display layer includes one or more hands of the timepiece, and overlies the digital display layer. The hands may be controlled by a processor through micro-stepper motors or other actuators. Physical motion of the hands provides expressivity, for instance via visual mechatronic effects. This may include buzzing, clapping, providing stylized visual features, hiding or minimizing information, and revealing information. The information presented on the digital display layer is presented concurrently with the hand movement, in a manner that complements the hand motion. This provides a rich, symbiotic dual-display layer arrangement that enhances the capabilities of the digital and analog display layers.