Abstract: Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element including an impulse pin cooperating with a fork of the lever, subjected to the return force of two flexible strips attached to the plate, defining a virtual pivot having a main axis (DP), the lever pivoting about a secondary axis (DS), and the lift angle (?) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio IB/IA between the inertia IB of the inertia element with respect to the main axis (DP) and the inertia IA of the lever with respect to the secondary axis (DS) is greater than 2Q·?2/(0.1·?·?2), where ? is the lift angle of the lever corresponding to the maximum angular travel of the fork.

Abstract: Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) including an inertia element (2), which includes an impulse pin (6) cooperating with a fork (8) of the lever (7), and which is subjected to the action of elastic return means (3) fixed to the plate (1) and is arranged to cooperate indirectly with an escape wheel set (4), this resonator (100) is a resonator with a virtual pivot rotating about a main direction (DP), with a flexure bearing returned by flexible strips (5) attached to the plate (1), defining a virtual pivot having a main axis (DP), the resonator (100) is attached to an elastic suspension strip (9) attached to the plate (1), allowing displacement in the main direction (DP), the plate (1) comprising shock absorber stops (11, 12), in the main direction (DP), cooperating with at least one stiff element of the inertial element (2).

Abstract: 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.

Abstract: Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including at least one inertia element including an integral impulse pin cooperating with a fork of the lever, this inertia element being subjected to the action of elastic return means directly or indirectly fixed to the plate and being arranged to cooperate indirectly with an escape wheel set comprised in the escapement mechanism, this resonator mechanism is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips attached to the plate, defining together a virtual pivot with a main axis (DP), the lever pivoting about a secondary axis (DS), and the fork is enlarged in comparison to the fork of a conventional Swiss lever.

Abstract: Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) with a quality factor Q including an inertia element (2) comprising an impulse pin (6) integral with an inertia element (2) and cooperating with a fork (8) of the lever (7), this inertia element (2) being subjected to the action of elastic return means (3) directly or indirectly fixed to the plate (1) and being arranged to cooperate indirectly with an escape wheel set (4) comprised in the escapement mechanism (200), this resonator mechanism (100) is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips (5) attached to the plate (1), defining together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and the fork (8) is enlarged in comparison to the fork of a conventional Swiss lever.

Abstract: A timepiece regulator includes a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element comprising an impulse pin integral with an inertia element and cooperating with a fork of the lever. This inertia element is subjected to the action of elastic return means directly or indirectly fixed to the plate and is arranged to cooperate indirectly with an escape wheel set comprised in the escapement mechanism. This resonator mechanism is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips attached to the plate, defining together a virtual pivot with a main axis (DP), the lever pivoting about a secondary axis (DS).

Abstract: A correction mechanism for a function of a movement for a timepiece, notably a display function, including a corrector, and at least one clockwork part, notably a gear wheel, in which the clockwork part can be driven by a movement cooperating with a flexible transmission end of a movement.

Abstract: The invention relates to pallets for an escapement of a clock movement including a pallet-stone support, pallet-stones mounted on the pallet-stone support, a fork including first and second horns, a safety pin and a rod connecting the pallet-stone support to the fork and to the safety pin, the pallet-stone support, the rod, the safety pin and the fork forming a monolithic body of the pallets, the pallet-stone support, the rod and the safety pin being formed by a main layer of constant thickness, the first and second horns of the fork having a greater height than the constant thickness and being formed by the main layer, and also by an additional layer, the main layer and the additional layer forming the monolithic body of the pallets.

Abstract: A sequencer mechanism including a rotatably driven locking wheel set including a peripheral holding surface of regular geometry or respectively of regular uniform magnetic polarity, arranged to hold immobile in rotation an opposite receiver wheel set, which is a reduced friction wheel including at the periphery thereof second stop elements, which are idle rollers or respectively magnets of the same polarity, cooperating in pairs with this holding surface on either side of a plane passing through the centres of the two wheel sets, the locking wheel set including a drive surface including an irregular relief portion or respectively an opposite magnetization and arranged to drive this receiver wheel set in jerks. A timepiece mechanism including such sequencer mechanism. A watch including such a timepiece mechanism and/or such a sequencer mechanism.

Abstract: An oscillating regulator for a timepiece includes at least two resonant oscillating systems (20, 30), each one having at least one magnetic component (25, 35) suitable for exchanging magnetic energy between the oscillating systems during their oscillations. The shafts (22, 32) of at least two of the oscillating systems (20, 30) differ substantially from each other in terms of their respective orientation.

Abstract: A timepiece mechanism including a first component and a second component configured to cooperate with each other in a relative motion on a trajectory in an interface area, wherein a first path of the first component includes magnetic and/or electrostatic actuation components, configured to exert a contactless stress on complementary magnetic and/or electrostatic actuation components included in a second path belonging to the second component. Throughout a monotonous relative movement of the second path with respect to the first path, interaction energy between the first component and second component has a variable gradient with at least one position of discontinuity of the gradient, which corresponds to a variation in the contactless stress, the position of discontinuity of the gradient corresponding, in a variant, to an abrupt variation in the contactless stress.

Abstract: A timepiece regulating mechanism including, mounted to be movable, at least in a pivoting motion, with respect to a plate, an escape wheel configured to receive a drive torque via a gear train, a first oscillator including a first rigid structure, connected to the plate by a first flexible strip and a second flexible strip, crossed with each other, a second oscillator including a second rigid structure connected to the first rigid structure by a third flexible strip and a fourth flexible strip crossed with each other, and the second structure including a guide configured to cooperate with a complementary guide included in the escape wheel, synchronizing the first oscillator and the second oscillator with the gear train.

Abstract: Pallet lever (1) including a head (2) arranged to cooperate with an escape wheel (20) and a fork (6) arranged to cooperate with a balance (30). The angular position of said fork (6) is variable relative to said head (2). A flexible strip (10) provides the only permanent, mechanical connection between said head (2) and said fork (6). Escapement mechanism (100) including a plate (40), an escape wheel (20) and a balance (30), cooperating with said pallet lever (1). Said flexible strip (10) is mounted prestressed buckled between said head (2) and said fork (6), said pallet lever (1) forming a bistable system comprising at least two stable states and two metastable states.

Abstract: Magnetic cylinder escapement, comprising a regulating wheel set cooperating with an escape wheel comprising actuators (6) at the periphery of a first disc, each comprising a first impulse part and a second stop part, generating or guiding magnetic fields parallel to the pivot axes, and arranged to work in attraction, via the first disc, with a second non-magnetically charged, soft ferromagnetic disc integral with the regulating wheel set, the mechanism comprising a conductive ferromagnetic plate, underneath but not in contact with the first disc, comprising a cutout surrounding, in a contactless manner, the periphery of the second disc, with a variable air-gap, and closing a magnetic circuit comprising an actuator, the first disc, the second disc, and a structure in which the escape wheel pivots and which carries the plate.

Abstract: Pallet lever (2) for the escapement mechanism of a watch movement including a fork portion (4), a pallet-stone holder portion (7), pallet-stones (6) mounted on the pallet-stone holder portion, and a lever (8) interconnecting the pallet-stone holder portion to the fork portion. The fork portion includes a fork (12), guard pin (14) and a stud (16), the lever and the pallet-stone holder portion are integral and form a one-piece main body (3) of the pallet lever, and the fork is an added part secured to the main body by means of the stud driven into a securing hole (18) in the main body and a securing hole (20) in the fork. The stud is manufactured from a hard material, particularly a sapphire.

Abstract: Provided is a step-shaped drill bit including at least two stepped cutting edges that are axially provided. A cutting edge of a first step from a tip is formed so as to satisfy at least one of the following conditions. That is, a number of blades is smaller, a point angle of the cutting edge is larger, or a clearance angle of the cutting edge is larger than that of cutting edges of a second and subsequent step(s). As a result, a thrust resistance during a perforation can be reduced compared with a case in which the first step cutting edge is formed such that the number of blades, the point angle of the cutting edge and the clearance angle of the cutting edge are the same as those of the second and subsequent step(s).

Abstract: The invention concerns a magnetic device for regulating the relative angular velocity of a wheel and of at least one magnetic dipole integral with an oscillating device. The wheel or the dipole is driven by a driving torque. The wheel includes a periodic, ferromagnetic pole path which alternates according to a center angle and the at least one dipole is arranged to permit magnetic coupling with the ferromagnetic path and oscillation of the dipole at the natural frequency of the oscillating element during the relative motion of the wheel and of the magnetic dipole to regulate the relative angular velocity. The wheel further includes an assembly to dissipate the kinetic energy of the at least one dipole when it moves away from the ferromagnetic path.

Abstract: Coupling mobile member for synchronising two resonators, each including an interface pin periodically following a plane, closed trajectory, including grooves for holding the pins equidistant from an axis on a structure subjected to a torque about the axis, on which the grooves are coplanar grooves, radial with respect to the axis, for reception of the pins in symmetrical pairs with respect to a main, straight groove passing through the axis, in a plane perpendicular to the axis, and in which slides a main slide-block, which cooperates with a plurality of bars, each hinged on one side to one of the pins, and hinged on the other side to the main slide-block.

Abstract: A mechanism (3) for indicating and storing time information, including a transmission device (7) coupling a time information counting system (5) and a member (S?) for displaying time information adapted to display selectively current time information and stored time information, including: a cam (C); a lever device (L) including a lever (L1), a follower (L2) and a first elastic member (R) urging the lever and the follower into a particular relative position; the lever (L1) being kinematically coupled to the display member (S?) for displaying time information, the follower (L2) being urged against the cam (C) by a second elastic member (RL).

Abstract: A timepiece including a first resonator oscillating at a first frequency and connected by a main gear train to a main energy source via a main escapement, a second resonator oscillating at a second frequency which is lower than the first frequency and cooperating with the main escapement in order to synchronize maintenance of the first resonator to the second frequency.

Abstract: Pallet lever for an escapement mechanism including a balance with a pin of a given pin radius and oscillating over a given radius of gyration, this pallet lever including two horns for cooperation with a pin of this type. These horns are symmetrical to each other relative to a median plane passing through a pallet lever pivot axis, and each includes a concave inner profile over a first radius of curvature greater than or equal to the sum of this radius of gyration and this pin radius, this concave inner profile being adjacent to a convex outer profile over a second radius of curvature less than or equal to the difference between this radius of gyration and this pin radius.

Abstract: An assembly for an escapement of a timepiece movement (100), including an escapement bridge (10), a balance cock (30), a pallet lever (7) for controlling an escapement wheel (6) in cooperation with a balance (3). This escapement bridge (10) carries a bottom pallet lever bearing (14) for guiding a bottom pallet lever pivot (15) of this pallet lever (7), and this cock (30) carries a top pallet lever bearing (14A) for guiding a top pallet lever pivot (15A) of this pallet lever (7). An arm (41) of this pallet lever (7) carries a banking pin (39) which can move in a hole (40) comprised in this balance cock (30), to limit the pivoting of this pallet lever (7).

Abstract: An object is to provide an escapement which can improve energy transmission efficiency, a timepiece movement including the escapement, and a timepiece including the timepiece movement. There is provided an escapement 1 including an escape wheel 11, a double roller 53 that is disposed in a balance 5 pivotally moving around a balance staff 51, and a pallet fork 12 that can pivotally move around a pallet staff 33. The double roller 53 includes a first impulse pin 57 which comes into contact with the pallet fork 12 in response to a pivotal movement of the double roller 53 and causes the pallet fork 12 to pivotally move around the pallet staff 33, and a second impulse pin 58 which can come into contact with tooth portion 23 of the escape wheel 11. The pallet fork 12 includes two pallets of an entry pallet 45 and an exit pallet 38.

Abstract: A mechanism (3) for indicating and storing time information, including a transmission device (7) coupling a time information counting system (5) and a member (S?) for displaying time information adapted to display selectively current time information and stored time information, including: a cam (C); a lever device (L) including a lever (L1), a follower (L2) and a first elastic member (R) urging the lever and the follower into a particular relative position; the lever (L1) being kinematically coupled to the display member (S?) for displaying time information, the follower (L2) being urged against the cam (C) by a second elastic member (RL).

Abstract: The invention relates to an immobilizing device for a toothed wheel suitable for the field of horology where it can be part of a direct- or indirect-impulse escapement, in particular in a wristwatch. This immobilizing device (1, 2, 3, 4, 5, 6) comprises: —a base (7); —an immobilizer (9) comprising two arms (10, 11) each provided with a pallet (14, 15) intended to come into contact with a tooth of the toothed wheel (40); —a first and a second elastic element (12, 13) each having an end connected to the immobilizer (9) and another end connected to the base (7); —a third elastic element (16) connected to the immobilizer (9), and it has the particular feature that it is in one piece or in one piece apart from at least one of the pallets (14, 15). The invention also relates to a timepiece and to a method for assembling such a timepiece.

Abstract: A device (100) for displaying time information with the aid of an indicator member (1), including a cam (2) the profile of which includes a flank (23); a lever (4) driving the indicator member (1); a follower (3) controlling the lever (4), pressed against the cam (2) by first spring means (6), adapted, during movement of the flank (23) in a first direction of movement of the cam (2), to control movement of the lever (4) intended to drive movement of the indicator member (1), characterized in that the follower (3) controlling the lever (4) is adapted to be moved relative to the lever (4) against the return action of second spring means (5) by an action force (F) exerted by the flank (23) of the cam (2) on the follower (3) during movement of the flank (23) in a second direction of movement of the cam (2).

Abstract: An assembly for an escapement of a timepiece movement (100), including an escapement bridge (10), a balance cock (30), a pallet lever (7) for controlling an escapement wheel (6) in cooperation with a balance (3). This escapement bridge (10) carries a bottom pallet lever bearing (14) for guiding a bottom pallet lever pivot (15) of this pallet lever (7), and this cock (30) carries a top pallet lever bearing (14A) for guiding a top pallet lever pivot (15A) of this pallet lever (7). An arm (41) of this pallet lever (7) carries a banking pin (39) which can move in a hole (40) comprised in this balance cock (30), to limit the pivoting of this pallet lever (7).

Abstract: Platform escapement assembly (1) comprising a balance (3) with a roller (4), a balance spring (5), and escape wheel (6) controlled by a pallet lever (7) cooperating with said roller (4). An escapement bridge (10) comprises, on both sides of a bottom surface (11), first (20) and second (21) spacers respectively comprising first (22) and second (23) bearing surfaces for receiving first (24) and second (25) complementary surfaces of a balance cock (30) on both sides of a top surface (11A), and said top surface (11A) is more flexible in bending than said bottom surface (11), so as to allow mobility, as a result of a perpendicular force applied to said top surface (11A), of said first complementary surface (24) relative to said first bearing surface (22) when said second complementary surface (25) is locked in position on said second bearing (23) surface.

Abstract: Disclosed are an integrally molded type pallet fork (incomplete) with a safety pin and a roller table that are formed with high precision by a simple process, a thin escapement governor including the pallet fork (complete) and the roller table, and a method of manufacturing the pallet fork (complete) and the roller table.

Abstract: A mechanical device for horology, comprising angular reduction means apt to decrease the oscillation of the width of the lever pacing the motion of the gear.

Abstract: The invention pertains to the field of high frequency watch movements. The invention relates to a timepiece including a movement that has a resonator of the type with a balance and balance spring and an escape system of the type with a wheel and Swiss lever. According to the invention, the balance oscillates at more than 36,000 vibrations per hour and the escape system is at least partially pierced to decrease the inertia thereof.

Abstract: A mechanical device for horology, comprising angular reduction means apt to decrease the oscillation of the width of the lever pacing the motion of the gear.

Abstract: An escapement system that includes an anchor fitted with a fork configured to cooperate with a pin mounted on a disc and a shaft including arms configured to receive pallets to cooperate with at least one escape wheel. A part of the escapement system is made from an at least partially amorphous metal alloy.

Abstract: The invention relates to a single piece coaxial escape wheel set (100, 100?) including a first toothing (108, 108?) formed at the periphery of a plate (103, 103?) and a second toothing (113, 113?). According to the invention, the second toothing (113, 113?) is formed in a single piece with the plate (103, 103?) of the first toothing (108, 108?) so as to reduce any problems of alignment of one in relation to the other and to decrease the overall mass of the wheel set (100, 100?). The invention concerns the field of timepieces.

Abstract: A display mechanism for a clock movement for controlling the movements of a member for displaying at least one indication related to the time or to the operation of a timepiece, includes a cam having a periphery with a predetermined shape and driven by a base wheel, a lever pivotally mounted relative to a frame member of the movement, between an abutment position associated with an indication position of the display member, and a standby position associated with a predetermined alternative position of the display member. The lever bears a feeler intended for interaction with the periphery of the cam so as to define the abutment position, and the lever further bears a rake engaged with a pinion for driving the display member. An elastic element applies a force onto the lever for positioning it in the abutment position. The mechanism includes a mobile control member having at least a stable standby and a stable indication position.

Abstract: Platform escapement assembly (1) comprising a balance (3) with a roller (4), a balance spring (5), and escape wheel (6) controlled by a pallet lever (7) cooperating with said roller (4). An escapement bridge (10) comprises, on both sides of a bottom surface (11), first (20) and second (21) spacers respectively comprising first (22) and second (23) bearing surfaces for receiving first (24) and second (25) complementary surfaces of a balance cock (30) on both sides of a top surface (11A), and said top surface (11A) is more flexible in bending than said bottom surface (11), so as to allow mobility, as a result of a perpendicular force applied to said top surface (11A), of said first complementary surface (24) relative to said first bearing surface (22) when said second complementary surface (25) is locked in position on said second bearing (23) surface.

Abstract: An escapement (1) comprising: a roller (5), a first mobile escapement part (2) comprising first escapement teeth (22) and a second mobile escapement part (3) comprising second escapement teeth (32), a means (29, 39) for mechanically coupling the first mobile escapement part to the second mobile escapement part, and an anchor (4) carrying a first and second pallet stone (42, 43), the roller comprising a third impulse pallet stone (52) cooperating with the first escapement teeth and a fourth impulse pallet stone (53) cooperating with the second escapement teeth.

Abstract: The invention relates to a single piece coaxial escape wheel set (100, 100?) including a first toothing (108, 108?) formed at the periphery of a plate (103, 103?) and a second toothing (113, 113?). According to the invention, the second toothing (113, 113?) is formed in a single piece with the plate (103, 103?) of the first toothing (108, 108?) so as to reduce any problems of alignment of one in relation to the other and to decrease the overall mass of the wheel set (100, 100?). The invention concerns the field of timepieces.

Abstract: The invention relates to a timepiece (1) including a movement (5) that has a resonator (9) of the type with a balance (8) and balance spring (10) and an escape system (7) of the type with a wheel (11) and Swiss lever (13). According to the invention, the balance (8) oscillates at more than 36,000 vibrations per hour and the escape system (7) is at least partially pierced to decrease the inertia thereof.

Abstract: A display mechanism for a clock movement for controlling the movements of a member for displaying at least one indication related to the time or to the operation of a timepiece, includes a cam having a periphery with a predetermined shape and driven by a base wheel, a lever pivotally mounted relative to a frame member of the movement, between an abutment position associated with an indication position of the display member, and a standby position associated with a predetermined alternative position of the display member. The lever bears a feeler intended for interaction with the periphery of the cam so as to define the abutment position, and the lever further bears a rake engaged with a pinion for driving the display member. An elastic element applies a force onto the lever for positioning it in the abutment position. The mechanism includes a mobile control member having at least a stable standby and a stable indication position.

Abstract: A movement for a timepiece, that includes: a housing (10, 12); an energy source; a gear driven by the energy source (14); a frame (26) for a tourbillon (18) rotatingly mounted on the housing (10, 12) about a first axis (AA) and driven by the gear (14); a balance (32) mounted so as to oscillate in bearings on the frame (26); and an escapement (16, 34) including a fixed wheel (16) and a control member (34) interacting with the balance (32), the fixed wheel (16) sustaining the balance (32). In this movement, the bearings are arranged so that the balance (32) oscillates about a second axis (BB) inclined relative to the first axis (AA).

Abstract: The driving and transmitting element (10, 50) is in the form of a ring (20) having an outer face (32) from which a stud (40) extends radially. Application to a roller table (60, 70) of a lever escapement (80) for a timepiece (90) including such a driving and transmitting element (10, 50) for rotating the anchor (84) and for transmitting an impulse from the anchor (84) to the roller table (60, 70).

Abstract: The lever escapement includes at least one escape wheel (2). The pallet assembly (5) is fitted with locking pallet stones (6, 7) and a first impulse pallet stone (8) cooperating with the teeth of the wheel (2). The pallet assembly (5) drives an auxiliary wheel set (9) carrying a second impulse pallet stone (10) cooperating with the teeth of the wheel (2).

Abstract: The tangential impulse escapement includes a lever device (1) including a lever (3) driving a roller (65) and a ring (7) surrounding an escapement wheel set (8), said ring being fitted with pallet-stones (9, 10, 11, 12) for cooperating with the teeth (13, 14, 15, 16) of said wheel set, in order, alternately, to lock the latter then import an impulse to said roller. The escapement wheel set includes at least first (17) and second (18) coaxial secured wheels. The pallet-stones (9, 11, 12) of the ring cooperate with the teeth (13, 15, 16) of the first wheel (17) with the exception of one (10), which is arranged for cooperating with the teeth of the second wheel (18).

Abstract: The invention concerns a device for securing a pallet stone to an escapement pallet including at least one housing for receiving said pallet stone, characterized in that the portion of the pallet including said housing is made of a shape memory alloy able to undergo a reversible transformation from an austenitic crystallographic phase to a martensitic crystallographic phase.

Abstract: The present invention refers to a constant-force device suitable for being integrated into a movement of watches, particularly wrist watches, with an indirect-second mechanism having an intermediate second pinion (14) driven by a second wheel (9) of the movement, and an indirect-second wheel (15). The constant-force device comprises a tensioning module (4, 5, 6, 7, 8), a cam (2), a lever (11), and a stop wheel (13). The stop wheel (13) of the constant-force device is mounted on the intermediate second pinion (14) of the indirect-second mechanism.

Abstract: The detent escapement includes a wheel 2 fitted with teeth 3, a roller 4 fitted with an impulse pallet stone 5, a blocking member in the form of a lever 6 hinged on a pin 8. The first and second arms 9 and 10 of the lever respectively carry a locking pallet stone 7 and a first actuating finger 11. An elastic member 12 is mounted on the roller 4, said member carrying a second actuating finger 14 capable of driving the first finger 11 when the roller 4 rotates in a first direction a to actuate the blocking member 6 and to move around said first finger 11 without driving it, when the roller 4 rotates in a second direction b opposite to the first. The elastic member 12 is a spring of great length including a plurality of turns 15 wounded about a centre 16.

Abstract: The escapement includes first (3) and second (4) escapement wheels meshing with each other, one of these wheels being driven by the gear train. It further includes a lever (5) capable of receiving the impulses generated alternately by the first and second wheels and to transmit these impulses to a plate (2) which carries a sprung-balance. The lever is arranged to lock alternately the first and second wheels after each impulse transmitted.

Abstract: Improved timekeeping apparatus, such as a watch or clock with an electro-optic display simulating a conventional mechanical analog timepiece. Electro-optical material, e.g., liquid crystal material, is activated in selected areas to change its appearance to simulate movement of the hands.