146results about "Horological bearings" patented technology

The invention relates to a horological movement comprising a striking mechanism of a watch including a vibrating element and a striking device of said vibrating element comprising a hammer fixed overhanging a structure of the horological movement by means of strips of a flexible guide, said strips being both arranged so as to extend in directions intersecting at a point materialising an instantaneous centre of rotation C disposed along an axis T tangent to the vibrating element.

The present invention provides a bearing that elastically dampens axial shocks. [Solution] The present invention relates to a bearing for the shaft of a watch component, comprising a bearing body 2 including a housing defined by a circumferential wall 20 of the bearing 1 forming a through hole 8, wherein the hole 8 includes a small restraint assembly 10 including a first elastic member 3, and an assembly 27 including a fluid storage space consisting of a second elastic member 6, a pivot element 5, and an end stone element 4, wherein the first elastic member is attached to the first opening 9a of the through hole 8 by being fixed to a through opening provided in the circumferential wall, the first member 3 is configured to elastically dampen at least axial shocks, and in the assembly 27, in this bearing, only the second elastic member of the assembly is fixed to the circumferential wall.

The invention relates to a method for manufacturing a timepiece pinion, characterised in that the method comprises the following steps: - providing a block to be machined; - machining the block using a machining device comprising a mechanical cutting tool that acts on the block through direct contact so as to remove chips from the block, characterised in that - the step of machining the block is carried out using a spindle to which the block is attached and on which it is rotated at a speed greater than or equal to 20,000 rpm, or even greater than or equal to 22,000 rpm, or even greater than or equal to 25,000 rpm, or even greater than or equal to 30,000 rpm, or even greater than or equal to 35,000 rpm, or even greater than or equal to 40,000 rpm, while the mechanical cutting tool comes into contact with the block to remove material in successive passes, in order to form a timepiece component having rotational symmetry; or in that - the step of machining the block is carried out by a mechanical cutting tool, such as a milling cutter or a grinding wheel, rotated at a rotational speed greater than or equal to 100,000 rpm, or even greater than or equal to 120,000 rpm, or even greater than or equal to 150,000 rpm, or even greater than or equal to 180,000 rpm, which comes into contact with the block, held stationary by a spindle, in order to remove material.

A method and device for manufacturing a bevelled stone, particularly for a timepiece are disclosed. A precursor is produced from a mixture of at least one material in powder form with a binder. The method includes pressing the precursor so as to form a green body, using a top die and a bottom die comprising a protruding rib, sintering the green body so as to form a body of the future stone in at least one material, the body including a peripheral face and a bottom face provided with a groove, and machining the body including a substep of planning the peripheral face up to the groove, such that an inner wall of the groove forms at least a flared part of the peripheral face of the stone.

Bearing (1a) for guiding along an axis of a clockwork shaft, in particular a bearing for a portion of a shaft of a clockwork resonator, comprising at least one support element (13a) arranged to exert, radially to the axis or substantially radially to the axis, an action on the shaft, in a permanent manner.

Watchmaking indexing element (10), cooperating coaxially with a watchmaking component (20) having an indexing relief (30), having indexing means (13) cooperating with this indexing relief (30) for their relative indexing in a plurality of indexing positions, and carried by first elastic arms (14) each having a first indexing surface (15), each first elastic arm (14) being arranged to exert a substantially radial thrust force relative to this said component (20), and this indexing element (10) has at least a first bearing surface (11) arranged so as, in the free state in a service position, to remain at a distance from a second complementary bearing surface (31) that a component (20) has, and in case of shock, to cooperate in a buttress and / or guide bearing with the second complementary bearing surface (31).

To provide a carousel that is smaller in thickness than carousels of the prior art.SOLUTION: The invention relates to a carousel 1 for a horological movement 10. The carousel includes: an inertial mass; a guide; a resilient return element for returning the inertial mass, configured to cause the inertial mass to oscillate in a plane; and an escapement mechanism cooperating with the inertial mass. The carousel includes a carriage intended to be rotatable. The inertial mass, the guide, the resilient return element and the escapement mechanism are arranged inside the carriage. The carousel includes a first ball bearing allowing the carriage to rotate when mounted in a horological movement, and a second ball bearing allowing the escapement mechanism to be actuated. The first ball bearing and the second ball bearing are arranged substantially in the same plane.SELECTED DRAWING: Figure 2

A bearing (1) for an axis of a horology component including a bearing body (2) having an enclosure delimited by a peripheral wall (20) of the bearing forming a through hole (8), the hole (8) including a compact restrained assembly (10) including a first resilient organ (3) and an assembly (27) including a storage space (33) for fluid (31) consisting of a second resilient organ (6), a pivot element (5) and an endstone element (4), the first resilient organ (3) being mounted in a first orifice (9a) of the through hole (8) by being secured in through openings provided in the peripheral wall, the first organ (3) being configured to at least elastically damp axial shocks, and in the assembly (27), in this bearing (1) only the second resilient organ (6) of this assembly (10) is secured to the peripheral wall (20).

The invention relates to a watch movement comprising a control rod (1), a movement winding mechanism, a date display mechanism and a time display mechanism, the watch movement comprising a first rocker (10) carrying a drive wheel (11) capable of being kinematically linked to the control rod (1), and carrying at least one time-setting wheel (12) arranged to cooperate with the time display mechanism and capable of being kinematically linked to the drive wheel (11), and a second rocker (20) carrying a date correction mechanism capable of being kinematically linked to the drive wheel (11) as well as to the date display mechanism,the second rocker (20) being pivotally mounted on the first rocker (10) and arranged to move between an engagement position in which the date correction mechanism cooperates with the date display mechanism and a disengagement position in which the date correction mechanism is disconnected from the date display mechanism, and the control rod (1) and the first (10) and second (20) rockers are arranged to occupy three positions.

The invention relates to a method of lubricating the balance shaft of a watch part using a lubricant whose composition includes a multi-alkylated cyclopentane (MAC), as well as the use of such a lubricant for such a purpose.

The invention relates to a method for manufacturing a timepiece component (10), characterised in that the method comprises the following steps: - providing a ceramic or ceramic-based block to be machined; - machining the block using a machining device comprising a mechanical cutting tool that acts on the block through direct contact so as to remove chips from the block, and in that the step of machining the block is carried out using a spindle to which the block is attached and on which it is rotated at a speed greater than or equal to 30,000 rpm, or even greater than or equal to 32,000 rpm, or even greater than or equal to 35,000 rpm, or even greater than or equal to 38,000 rpm, or even greater than or equal to 40,000 rpm, while the mechanical cutting tool comes into contact with the block to remove material in successive passes, in order to form a timepiece component having rotational symmetry.

Disclosed is a pivot stone (1) for a timepiece movement (100), the pivot stone (1) comprising a pivot hole (5) that has a first axis (A1) and is able to pivot a timepiece component (98) or to pivot about a timepiece component (98), such as a timepiece axis, the pivot hole having a surface (6) that includes main grooves (61) for machining by abrasion, in particular main polishing grooves, which are oriented substantially orthoradially relative to the first axis (A1).

The invention relates to a method for manufacturing a stone (30), in particular for a timepiece, from a mineral body that is monocrystalline or polycrystalline in nature. The method comprises a step of ablation, in which the body is subjected to material ablation carried out by scanning at least one face of the body using ultra-short pulse laser radiation, the duration of which is less than 100 picoseconds and the beam of which is guided by a precession system having at least three axes and which is configured to at least partially eliminate the angle of the laser cone, which results from the focusing of the laser. The invention further relates to a mineral stone (30) that is monocrystalline or polycrystalline in nature, in particular for a timepiece movement, wherein the stone (30) is obtainable by the method. The stone particularly comprises a face (25) which is provided with a peripheral rim (27), in particular for laterally surrounding an endstone (35) in a bearing.

The invention relates to a method for manufacturing a timepiece component, characterised in that the method comprises the following steps: - providing a block to be machined; - machining the block using a machining device comprising a mechanical cutting tool that acts on the block through direct contact so as to remove chips from the block, characterised in that - the step of machining the block is carried out using a spindle to which the block is attached and on which it is rotated at a speed greater than or equal to 20,000 rpm, or even greater than or equal to 22,000 rpm, or even greater than or equal to 25,000 rpm, or even greater than or equal to 30,000 rpm, or even greater than or equal to 35,000 rpm, or even greater than or equal to 40,000 rpm, while the mechanical cutting tool comes into contact with the block to remove material in successive passes, in order to form a timepiece component having rotational symmetry; or in that - the step of machining the block is carried out by a mechanical cutting tool, such as a milling cutter or a grinding wheel, rotated at a rotational speed greater than or equal to 100,000 rpm, or even greater than or equal to 120,000 rpm, or even greater than or equal to 150,000 rpm, or even greater than or equal to 180,000 rpm, which comes into contact with the block, held stationary by a spindle, in order to remove material.

A clockwork display device (100) comprising a first display element (1) and a second display element (2) superimposed above a fixed part (50) comprising a main support surface (51), this second display element (2) is subjected to opposing forces exerted, on the one hand, by lower return means (52) which tend to bring the second display element (2) closer to the first display element (1), and, on the other hand, by upper return means (63) which tend to move the second display element (2) away from the first display element (1) without contact between them or by mechanical spacing means (60) which comprise a support surface (600) ensuring a stop support function on a stop surface (210) of the second display element (2), to limit the stroke of the second display element (2) towards the first display element (1).

An organ comprises a rotating element (22) and a magnetic device for rotationally guiding the rotating element, the magnetic device being arranged to exert a radial magnetic biasing force on the rotating element when a central axis (26) of the rotating element undergoes a radial displacement with respect to a given rotation axis (28). The magnetic device comprises a pair of annular magnets, a first annular magnet (32) of the pair of annular magnets being carried by the rotating element and a second annular magnet (34) being carried by a structure of the organ. When the central axis of the rotating element coincides with the rotation axis, the second annular magnet is parallel and axially superposed to the first annular magnet, the first and second annular magnets being in a magnetic attraction arrangement so as to exert a first axial magnetic force on each other and a first radial magnetic force substantially as soon as the central axis of the rotating element is radially displaced from the rotation axis. In particular, the organ is a timepiece movement and the rotating element is a balance.

Disclosed is a micromechanical component, in particular a timepiece wheel, in particular an escapement wheel, comprising a substrate with a first material comprising at least nickel and phosphorus, which substrate is covered, on at least one surface of the wheel substrate, by a coating of a second material comprising at least nickel and poorer in phosphorus than the first material, or devoid of phosphorus, and the second material constitutes the peripheral layer of the wheel at this at least one surface of the substrate.

One aspect of the invention relates to a method for depositing a metal matrix composite coating on a support part, comprising the steps of immersing the support part to be coated in an electrolytic bath containing the metal to be deposited (50), and then proceeding to deposit the metal in a layer on the support part to be coated by electrodeposition (60), characterized in that, prior to immersing the support part to be coated in the electrolytic bath, a two-dimensional material is incorporated and dispersed in the electrolytic bath (30) in a determined quantity to distribute the two-dimensional material homogeneously in the thickness of the metal matrix constituted by the metal deposited in a layer.

The invention relates to a pivot shaft for a timepiece movement, at least one part of which is made of pure tungsten or a tungsten alloy, at least one section of said part being converted into a tungsten carbide layer (5).

To provide a bearing for a timepiece, the bearing having small dimensions and allowing the staff of a timepiece component to be repositioned extremely efficiently at all times.SOLUTION: In a bearing 1 for a timepiece, a stressed, compact assembly 10 includes: a first resilient member 3 attached into a first orifice 9a; a second resilient member 6 arranged between the first resilient member 3 and a second orifice; a pivot element 5 positioned to face the second orifice; and an endstone element 4 interposed between the first and second resilient members 3, 6. The endstone element 4 comprises a central part 13a and a peripheral part 13b, the central part 13a having a cavity capable of receiving a part of the pivot element 5 therein, and the peripheral part 13b having a contact zone 23 configured to bear against an entire periphery of a flat upper face of the second resilient member 6.SELECTED DRAWING: Figure 4

The invention relates to a support for a watch movement, in particular a bridge or a mainplate. This support comprises a base and an interface for receiving a watch component. Remarkably, the support also includes a damper disposed between the base and the interface and arranged to absorb vibrations between the watch component and the base of the support. The invention also relates to a movement comprising such a support and a timepiece comprising such a movement.

The invention relates to a method for manufacturing a polycrystalline type stone, in particular for a watch part, the stone comprising for example poly-ruby of type al2O3Cr or Zirconia of type ZrO2, the method comprising a first step of producing a precursor.The process includes a second step of pressing the precursor to form a body (30), the pressing being carried out using a pressing device (20) having an upper die and a lower die defining a pressing space (25) in which the precursor is disposed, the upper die comprising a concave portion (23) of oblong shape, the device being equipped with a wire (17) passing at least partially through the lower die (16) to open into the pressing space (25), the lower die (16) being able to slide around the wire (17), the pressing being carried out by bringing the lower die and the upper die together to form a body (30) comprising an upper face (36) having a dome (31) and a lower face (37) having a hole (32) extending at least partially into the dome (31). The invention further relates to a stone and a pressing device.

A method for manufacturing a watch part (1), in particular a tenon (1), including a hole (5), comprising the steps of: machining the hole (5) by abrasion using abrasive particles (21), in particular diamond particles, which are free with respect to a machining support (20) and roll between the surface (6) of the hole to be machined and the machining support (20) housed in the hole, and / or using abrasive particles that can be detached from the machining support, then cleaning the watch part (1) and the machining support (20) while the machining support is housed in the hole, and then removing the machining support from the hole.

The invention relates to a control module (10) of an electronic device characterized in that it comprises a push button (11) including a striking element (111), a switch (12) adapted to occupy a connected state and a rest state, said striking element (111) being configured to drive the switch (12) into the connected state or into the rest state when the push button (11) is activated, the control module further comprising a damper (116) configured to absorb, by elastically deforming, a portion of the forces involved when the striking element (111) drives the switch (12) into the connected state or into the rest state, at least when said forces are greater than a predetermined threshold.

One aspect of the invention relates to a bearing (1) for a shaft body of a timepiece component, comprising a bearing body (2) comprising a housing delimited by a peripheral wall (20) of said bearing, thereby forming a through-hole (8), said hole (8) comprising a compact binding assembly (10), the binding assembly comprises a first elastic member (3) and an assembly (27) comprising a storage space (33) for the fluid (31), the assembly consisting of a second elastic member (6), a pivot element (5) and a drill holding element (4), the first elastic member (3) being mounted in a first orifice (9a) of the through-hole (8) by being fixed in a through-opening provided in the peripheral wall, and the second elastic member (6) being mounted in a second orifice (9b) of the through-hole (8) by being fixed in the through-opening provided in the peripheral wall. The first member (3) is configured to at least elastically damp axial impacts, and in the assembly (27), in the bearing (1), only the second elastic member (6) of the assembly (10) is fixed to the peripheral wall (20).