Patent classifications
G04B19/082
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.
Horological display mechanism
A horological display mechanism including a cam arranged to be driven by a time base, at least a first drive device of a first display of a first quantity, the drive device including a drive rack pivoting about an axis A and being arranged to cooperate, directly or indirectly, with a drive wheel of the first display, the drive rack including a first rigid part having a toothed sector and second elastically deformable part, the first rigid part and second elastically deformable part being separated by a slot receiving an eccentric arranged to cooperate with the elastically deformable part and separate the latter from the first rigid part.
Timepiece drive mechanism
A timepiece drive mechanism including a structure on which pivots an arm subjected to the return torque of a first energy source, this arm carrying a planetary gear including a wheel, a second energy source subjecting to a return torque a third wheel set on which the wheel rolls, under the action of the first energy source, the structure carries a stop device cooperating with complementary a stop device of the third wheel set to hold the latter in position, which are uncouplable under the action of uncoupling control device of the arm at the end of the forward angular travel of the arm to allow the third wheel set to pivot in a single direction under the action of the second energy source, causing a backward rotation of the arm to its start-of-angular-travel position.
Timepiece retrograde tourbillon or karussel
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.
HEAD-TO-TAIL FLEXIBLE GUIDE ASSEMBLY FOR A HOROLOGICAL MOVEMENT, IN PARTICULAR FOR A DISPLAY DEVICE
A flexible guide assembly for a horological movement, in particular for a display device of the horological movement, the assembly including two flexible guides arranged in series in a substantially head-to-tail manner, the first flexible guide including a support and a first movable element that is capable of moving relative to the support, as well as a first elongate, flexible body connecting the support to the first movable element, such that the first movable element can move by bending the first elongate, flexible body in a circular motion, the second flexible guide including a second movable element capable of moving relative to the first movable element and to the support of the first flexible guide, a second elongate, flexible body connecting the second movable element to the first movable element.
HOROLOGICAL LINKAGE MECHANISM WITH FLEXIBLE GUIDANCE
A linkage mechanism (100) for a horological mechanism, for transmitting a movement between an actuator and a receiver, including a structure (10) relative to which a carrier (9), movable according to a single degree of freedom under the action of the actuator, is connected to the structure (10) by at least one flexible guide (50), each of the carrier (9) and the structure (10) being more rigid than each flexible guide (50), at least one flexible guide (50) is planar, and includes flexible necks (51), with a smaller section than the elements that are adjacent thereto, and/or flexible blades (5, 6, 52), with a smaller section than the elements that are adjacent thereto, and forming articulations. At least two arms are articulated to the structure (10) at two distinct points, and kinematically cooperate with each other, or with a tertiary bar or a tertiary structure.
RECIPROCATING DISPLAY MECHANISM AND TIMEPIECE
A reciprocating display mechanism performing predetermined display by reciprocating a hand within a fixed area includes a hand capable of reciprocating within the fixed area, a hand driving wheel that drives the hand and includes a wheel, a transmission wheel that rotates the hand driving wheel by engaging with a tooth of the wheel, and a biasing member that biases the hand in one direction of the reciprocating, wherein the wheel includes an angle area corresponding to the fixed area and a region adjacent to the angle area, the angle area provided with teeth and a part of the region adjacent to the angle area provided with an idle region in which the transmission wheel idles, and the one direction biasing by the biasing member is a direction in which the tooth adjacent to the idle region engages with the transmission wheel when the idle region faces the transmission wheel.
RETROGRADE TIMEPIECE DISPLAY WITH A RETRACTABLE HAND
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.
HOROLOGICAL DISPLAY MECHANISM WITH AN ELASTIC HAND
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.
DRAGGING TYPE RETROGRADE HOROLOGICAL DISPLAY MECHANISM EQUIPPED WITH A DISPLAY DISCONNECTION LEVER
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.