Blancpain Sa

Mehdi Denden

Julien Peter

Jerome Favre

Jérôme Favre

Edmond Capt

Marco Rochat

Julien Behra

Laurane Chevallier

Alain Delizee

Alain DELIZÉE

A horological movement including a running train driven by a first energy source; a regulating member for regulating the running train; a chronograph mechanism including a chronograph train driven by a second energy source; a coupling configured to couple the chronograph train, on demand, to the regulating member to regulate the chronograph train using the regulating member; a chronograph start/stop control device cooperating with the coupling; wherein the coupling is a differential coupling including a first input wheel driven by the running train and having a rotational speed that is regulated by the regulating member; an output wheel meshed with the chronograph train; a second idle input wheel cooperating directly or indirectly with the chronograph start/stop control device; the coupling including a drive assembly configured to rotate the output wheel at the rotational speed regulated by the regulating member.

Horological movement comprising a chronograph mechanism

An anterograde display mechanism including: a first wheel driven by a horological movement; a second wheel coaxial with the first wheel and linked to the first wheel by an elastic organ; a first intermediate wheel driven directly by the first wheel and which directly drives a third wheel bearing a display organ; the third wheel including a smooth angular sector where at least two teeth are truncated; a fourth wheel coaxial and rigidly connected in rotation with the third wheel, the fourth wheel meshing the second wheel via a second intermediate wheel; the anterograde display mechanism being configured so that the rotational speed of the second wheel is less than the rotational speed of the first wheel when the display organ is driven in the angular movements thereof by successive short jumps of an angle (α) between two guide-marks separated by the first angle (α).

Anterograde display mechanism for timepiece

A dragging type retrograde horological display mechanism, arranged to successively display first and distinct indications in a retrograde manner, including a display wheel driven by a drive wheel; a pivoting holding element engaged in a toothing of a fixed display wheel; a return element that constrains a display pinion in rotation; a display disconnection lever including an elastic strip; when the retrograde horological display mechanism moves from the display of the last indication to the display of the next first indication, the holding element pivots, whereas the display disconnection lever is locked, such that the elastic strip becomes strained and the holding element is forced to be released from the toothing of the fixed display wheel, thus enabling the stress induced by the return element to relax and return the retrograde horological display mechanism in the retrograde direction in the initial position to display the first indication.

Dragging type retrograde horological display mechanism equipped with a display disconnection lever

A retrograde timepiece display mechanism for a watch including a wheel for displaying information, this display wheel being driven by a drive finger carried by a wheel driven by a horological movement, in order to change the information displayed by the retrograde timepiece display mechanism from one value to the immediately following value, this retrograde timepiece display mechanism including also an intermediate correction device to manually correct the information provided by the retrograde timepiece display mechanism by acting on a correction finger which drives the display wheel, the retrograde timepiece display mechanism also including a safety device arranged to allow blocking the intermediate correction device by preventing the correction finger from driving the display wheel during a period of time when the change in the information displayed by the retrograde timepiece display mechanism occurs and when the drive finger is engaged with the display wheel.

Retrograde timepiece display mechanism provided with a safety device

A display mechanism () allowing display change with a single display mobile () so as to indicate a first piece of information with a first counter () and second piece of information with a second counter (). This change is performed by the permutation of a clutch organ () displacing between a first position () and a second position () when the clutch organ () is controlled by a control organ ().

Display change mechanism

An assembly includes a plurality of gongs, which are connected to at least one gong carrier for a striking mechanism of a watch. Some gongs each connected to a respective gong carrier and a group of gongs connected to one and the same gong carrier are produced with materials different from each other.

Assembly of gongs for a striking mechanism of a watch

A striking watch is provided with an acoustic radiating membrane made of metallic material or amorphous metal. The membrane takes the form of a loop with walls of a certain thickness to be connected by a first edge portion to a middle part of a watch case and by a second edge portion to a bezel fixed to a watch crystal. The bezel connected to crystal is movable with respect to the case middle via the membrane during the vibration of membrane once a sound is generated by a watch striking mechanism in the watch case. The membrane is configured with a wall of a specific thickness in an active region dependent on the mass of the bezel connected to the crystal, to obtain a frequency fof a first vibration mode.

Striking or musical watch provided with at least one acoustic radiating membrane and method for manufacturing the membrane

A retrograde display mechanism including a main plate and a rack pivoting on a first arbor about a first axis centring its toothing, and including a sensing element following a cam pivoting on a second arbor about a second axis, the position of the first pivot axis and/or of the second pivot axis is adjustable with respect to the main plate with an adjustment plate carrying the first arbor and/or respectively the second arbor, and movable with at least one degree of freedom with respect to the main plate whose position with respect to the main plate is adjustable by an adjustment control device or an eccentric screw secured to the main plate and cooperating with a notch in the adjustment plate, or vice versa.

Device for adjusting a retrograde timepiece display

Watch with a time setting mechanism with an uncouplable motion work lever, with a striking mechanism having a governor, including at least one control piece set in motion by a movement or on user command, and a governor mechanism arranged to regulate to a substantially constant value the rotational speed of a strike function actuator, this striking mechanism including, for at least one control piece, a governor trigger piece arranged, according to the angular position of this control piece, to operate a governor stop jumper able to block or allow the rotation of this governor mechanism, and, by means of an articulated connection, to isolate the motion work lever in an uncoupling position or place it in a coupling position.

Watch with a striking mechanism having a governor and time setting safety function

A timepiece with a striking mechanism having a detent ratchet cooperating with a passing strike actuation click controlled by a movement or a repeater click operable by a user, including an uncoupling lever preventing access of the click to the ratchet under the action of a reversing lever operable by a hand-setting stem, or by a main strike function or tune selection control member, or by a stopping mechanism, and including a safety device for preventing release during a strike mode or tune selection, arranged to prevent the release of any strike function by the movement or by a user, and which includes a release-prevention lever, the pivoting of which, under action on the main control member, moves any click away from the detent ratchet.

Timepiece with striking mechanism and release-prevention device

A striking mechanism for a watch including an hour snail driven by a movement, a strike wheel set including a detent ratchet and a repeating rack pinion, a pivoting hour-rack for reading the snail and driving the pinion, a click set in motion at each passing strike to drive the detent ratchet, with a mode selector mechanism for selection by the user of a particular strike mode, among distinct modes including a silent mode, defining the angular position of a cam having an external profiled surface, wherein, in silent mode, the largest radius pushes back a beak of a silencing lever, to orient it into a position where its main arm moves the click away from the ratchet in order to disable every passing strike function.

Strike mode and tune selector for a watch or timepiece

Striking mechanism for a watch including:

Strike mode selector for a watch or timepiece

Timepiece movement with a carillon striking mechanism, striking the hours and quarter-hours with different melodies, the striking mechanism including a quarter surprise-piece coaxial to and superposed on the quarter-snail, in a limited angular travel with respect to the quarter-snail, arranged to ensure the sequential playing of the melodies of the four quarter-hours on the full hour, in the first minute of the new hour, and further including, in the plane of the quarter surprise-piece, a quarter surprise-piece jumper, arranged to drive and/or to lock this quarter surprise-piece.

Mechanical watch with a carillon striking mechanism

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.

Retrograde timepiece display with a retractable hand

A mechanical timer for setting a snooze time for an alarm mechanism controlling a mechanical actuator cooperating with a striking mechanism controlled by a timepiece movement, including a first control able to be actuated at a first moment by a user during the playing of an alarm chime to disengage the actuator and momentarily stop the chime, and including a timer arranged to automatically cause the alarm chime to play again at a second moment, after a predefined duration from the first moment, this timer including a second control able to be actuated by a user to set this predefined duration, and a release cam indirectly controlled by the first control and arranged to control the pivoting of a hammer lever, which, depending on its angular position, releases or locks the actuator to allow or respectively prevent the playing of an alarm chime.

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Les Rousses, France

Mehdi Denden