СКОРОСТНАЯ КАМНЕВАЯ ОПОРА СКОЛЬЖЕНИЯ ЗАКРЫТОГО ТИПА ДЛЯ ОСЕЙ ПРИБОРОВ

1. Скоростная камневая опора скольжения для осей приборов, содержащая запрессованные в оправу сквозной камень и накладной элемент со сферической выемкой на рабочем торце, цилиндрическую цапфу со сферической пятой, проходящую через отверстие сквозного камня, и заполненные смазочным маслом капиллярные зазоры, образованные между поверхностью цилиндрической цапфы и соответствующими поверхностями камня и накладного элемента, отличающаяся тем, что опора снабжена элементом для охвата цапфы, установленным соосно со сквозным камнем, цилиндрическая цапфа проходит через отверстие элемента для охвата цапфы, диаметр и длина отверстия которого больше диаметра и длины отверстия сквозного камня. 2. Опора по п.1, отличающаяся тем, что на цилиндрической поверхности цапфы в месте размещения элемента для охвата цапфы выполнены спиральные канавки с возможностью подвода смазочного масла в зону трения и с возможностью удаления продуктов износа. 3. Опора по п.1, отличающаяся тем, что на сферической пяте цилиндрической цапфы выполнена кольцевая проточка для стабилизации вращения. (19) RU (11) (13) 4 839 U1 (51) МПК G04B 31/00 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 96111328/20, 10.06.1996 (46) Опубликовано: 16.08.1997 (71) Заявитель(и): Андреева Ольга Георгиевна, Вечтомов Виталий Михайлович (73) Патентообладатель(и): Андреева Ольга Георгиевна, Вечтомов Виталий Михайлович Ñòðàíèöà: 1 U 1 4 8 3 9 R U U 1 (57) Формула полезной модели 1. Скоростная камневая опора скольжения для осей приборов, содержащая запрессованные в оправу сквозной камень и накладной элемент со сферической выемкой на рабочем торце, цилиндрическую цапфу со сферической пятой, проходящую через отверстие сквозного камня, и заполненные смазочным маслом капиллярные зазоры, образованные между поверхностью цилиндрической цапфы и соответствующими поверхностями камня и накладного элемента, отличающаяся тем, что опора снабжена элементом для охвата ...

Method for making a reinforced silicon micromechanical part

A method of fabricating a reinforced silicon micromechanical part includes: micromachining the part, or a batch of parts in a silicon wafer; forming a silicon dioxide layer over the entire surface of the part, in one or plural operations, so as to obtain a thickness of silicon dioxide that is at least five times greater than the thickness of native silicon dioxide; and removing the silicon dioxide layer by etching.

SMOOTH TIMEPIECE BEARING

Smooth timepiece bearing (). 1. A smooth timepiece bearing , characterised in that it includes a core made of plastic material injected into a cavity of revolution comprised in an outer cage , and in that said core can move with a permanent , residual operating clearance relative to said outer cage , and cannot be removed from said outer cage.2. The smooth bearing according to claim 1 , wherein it further includes at least one inner cage contained within said cavity claim 1 , and in that said plastic core is injected between said inner cage and said outer cage and in that said core can move with permanent residual operating clearance relative to said inner cage and cannot be removed from said inner cage.3. The smooth bearing according to claim 2 , wherein said core is delimited by an outer surface of revolution of said inner cage and by an inner surface of revolution of said outer cage.4. The smooth bearing according to claim 3 , wherein said external surface of revolution and said inner surface of revolution are coaxial about the same axis of revolution.5. The smooth bearing according to claim 1 , wherein said core is a surface of revolution.6. The smooth bearing according to claim 3 , wherein said outer surface of revolution and/or said inner surface of revolution includes at least one groove or shoulder of revolution for immobilising said core in the direction of an axis of revolution common to said outer surface of revolution and said inner surface of revolution.7. The smooth bearing according to claim 6 , wherein said outer surface of revolution and said inner surface of revolution each includes at least one groove or shoulder of revolution for immobilising said core in the direction of said axis of revolution.8. The smooth bearing according to claim 6 , wherein one of said outer surface of revolution and said inner surface of revolution includes at least one groove and the other at least one shoulder claim 6 , or vice versa claim 6 , said at least one groove ...

CONTROLLED CONTACT OR CONTACTLESS FORCE TRANSMISSION IN A TIMEPIECE

The invention concerns a method of making a controlled or reduced contact or contactless transmission in a timepiece movement. 121-. (canceled)22. A method of making a controlled or reduced contact or contactless transmission in a timepiece movement , the method comprising:applying a first surface or bulk treatment to a first surface, thereby obtaining a first treated surface with an electrostatic charge capable of repelling a second surface,wherein the first and second surfaces are opposing cooperating surfaces of the same component or of a pair of opposing components suitable for a timepiece, andthe first surface is configured to drive or abut against the second surface or the second surface is configured to drive or abut against the first surface.23. The method according to claim 22 , wherein the first treated surface has a polarization of the second surface.24. The method according to claim 22 , further comprising applying a second surface or bulk treatment to the second surface claim 22 , thereby obtaining a second treated surface.25. The method according to claim 24 , wherein the first surface or bulk treatment and the second surface or bulk treatment together comprise claim 24 , as a surface treatment claim 24 , coating each surface with a thin activation layer of electrically charged particles of the same polarization as each other claim 24 , thereby obtaining a first treated surface and a second treated surface capable of repelling each other claim 24 , or thereby obtaining a first treated surface claim 24 , a second treated surface claim 24 , or both that comprises a thin activation layer.26. The method according to claim 24 ,wherein the first surface or bulk treatment comprises, as a bulk treatment, electrizing at least a part of the first surface on a thin activation layer, thereby obtaining electrically charged particles with a polarization;the second surface or bulk treatment comprises, as a bulk treatment, electrizing at least a part of the second ...

TIMEPIECE ANTI-SHOCK SYSTEM

A shock absorber bearing for an arbour of a timepiece wheel set. The arbour includes a pivot-shank extended by a pivot. The bearing includes a support including a recess for receiving a pivot system into which the pivot-shank is inserted. The pivot system is arranged to absorb, at least in part, shocks experienced by the timepiece wheel set and is formed of a single piece made of an at least partially amorphous metal alloy. 16-. (canceled)7. A shock absorber bearing for an arbour of a timepiece wheel set ,said arbour comprising a pivot-shank extended by a pivot;said bearing comprising a support including a recess for receiving a suspended pivot system into which the pivot-shank is inserted;wherein said pivot system is arranged to absorb, at least in part, shocks experienced by the timepiece wheel set, and the pivot system is formed of a single piece made of totally amorphous metal alloy.8. The shock absorber bearing according to claim 7 , wherein said metal alloy includes at least one precious metal element or an alloy thereof.9. The shock absorber bearing according to claim 8 , wherein said precious metal alloy includes gold claim 8 , platinum claim 8 , palladium claim 8 , rhenium claim 8 , ruthenium claim 8 , rhodium claim 8 , silver claim 8 , iridium or osmium.10. The shock absorber bearing according to claim 7 , wherein said pivot system is a disc including an annular portion claim 7 , a central portion claim 7 , and elastic arms connecting the central portion to the annular portion claim 7 , the central portion comprising a recess so that the pivot which is engaged therein can pivot freely therein.11. The shock absorber bearing according to claim 10 , wherein the recess includes a cylindrical portion including a rounded convex portion at an end thereof. The present invention concerns a shock absorber bearing for an arbour of a timepiece wheel set. The arbour includes a pivot-shank extended by a pivot and the bearing includes a support, said support being ...

METHOD FOR CREATING A COMPONENT

A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component. 131-. (canceled)32. A method for manufacturing a component in a substrate , the method comprising:a) modifying a structure of at least one region of the substrate in order to make said at least one region more selective;b) chemically etching said at least one region in order to selectively manufacture said component.33. The manufacturing method according to claim 32 , the method further comprising:c) releasing the component from said substrate.34. The manufacturing method according to claim 32 , wherein the structure of said at least one region is modified by a laser.35. The manufacturing method according to claim 34 , wherein the substrate is made of a material transparent to the laser wavelength.36. The manufacturing method according to claim 35 , wherein a pulse duration of the laser ranges from a femtosecond to a picosecond.37. The manufacturing method according to claim 35 , wherein the substrate is made of single crystal material.38. The manufacturing method according to claim 35 , wherein the substrate is made of polycrystalline material.39. The manufacturing method according to claim 35 , wherein the substrate is made of polymer.40. The manufacturing method according to claim 35 , wherein the substrate is made of an amorphous material or a ceramic or glass.41. The manufacturing method according to claim 32 , wherein the component is a timepiece component.42. The manufacturing method according to claim 41 , wherein the component is a timepiece bearing.43. The manufacturing method according to claim 42 , wherein the substrate includes a blind hole made prior to the structure modifying.44. The manufacturing method according to claim 42 , wherein said bearing further includes at least one recess. ...

Timepiece movement

A timepiece movement includes two timepiece components rotating about a common axis, namely a first timepiece component attached to an arbor including a pivot (1) at least at one of its extremities and a second timepiece component including a bearing (2) receiving said pivot (1). The pivot (1) and the bearing (2) have the form of a rounded regular polygon, preferably a rounded equilateral triangle, respectively male or female, arranged in such a manner that the pivot (1) engages in the bearing (2) with an angular clearance permitting rotation of the arbor to be transmitted to the second component by a self-locking effect.

SHOCK ABSORBER BEARING FOR AN ARBOR OF A TIMEPIECE WHEEL SET

A shock absorber bearing for an arbor of a timepiece wheel set, particularly for a balance staff. The bearing includes a bearing assembly including a housing, a bearing support arranged inside the housing and including an external centring wall, a pivot bearing mounted on the bearing support for receiving a pivot of a wheel set arbor and an elastic support arrangement for the wheel set arbor pivot. The shock absorber bearing further includes a device for recentring play. This device for recentring play includes, on the one hand, a first part including a centring element having an internal centring wall in which is arranged the external centring wall of the bearing support, and on the other hand, a second part resting on the bearing assembly and arranged to have a return effect on the first part. 1. A shock absorber bearing for an arbor of a timepiece wheel set , particularly for a balance staff , comprising a bearing assembly comprising a housing , a bearing support arranged inside the housing and comprising an external centring wall , a pivot bearing mounted on the bearing support for receiving a pivot of the wheel set arbor and an elastic support arrangement for the wheel set arbor pivot , the shock absorber bearing further comprising a play recentring device , wherein the play recentring device comprises , on the one hand , a first part comprising a centring element having an internal centring wall inside which is arranged the external centring wall of the bearing support , and wherein the play recentring device further comprises a second part resting on the bearing assembly and arranged to have a return effect on the first part.2. The bearing according to claim 1 , wherein the external centring wall of the bearing support and the internal centring wall of the centring element are both conical walls claim 1 , the taper of the internal centring wall of the centring element matching the taper of the external centring wall of the bearing support.3. The bearing ...

HYBRID TIMEPIECE OSCILLATOR

Timepiece oscillator, comprising a sprung balance assembly including a balance with a rim, which is returned by a balance spring and pivoted with respect to a structure, on a first side by a torsion wire, fixed by an anchoring element to the structure, and on a second side, opposite to the first side, by a contactless magnetic pivot, the balance comprising a first pole embedded with the balance and the torsion wire, this first pole having a symmetry with respect to the axis of the sprung balance assembly, and cooperating with a second pole comprised in the structure, for the magnetic suspension of the first pole, and to exert on the distal end of the torsion wire, opposite to this anchoring element, a magnetic force for tensioning the torsion wire. 1. A timepiece oscillator , comprising at least one sprung balance assembly including a balance wheel set , itself including at least one balance rim and returned by at least one balance spring , wherein said balance wheel set is pivoted with respect to a structure , on a first side by at least one torsion wire , fixed by a stiff anchoring element or by means of a parachute spring to said structure , and on a second side , opposite to said first side , by a contactless magnetic pivot , said balance wheel set comprising at least a first pole embedded with said balance wheel set and said at least one torsion wire , each said at least one first pole having a symmetry with respect to a plane passing through the axis of said sprung balance assembly , said at least one first pole cooperating with at least one second pole comprised in said structure , for the magnetic suspension of at least one said first pole , and to exert on the distal end of said at least one torsion wire , opposite to said anchoring element , in a resultant magnetic field with axial symmetry , a magnetic force for axially tensioning said at least one torsion wire , for the axial holding of said torsion wire , and a magnetic force for radially centring said ...

METHOD FOR MANUFACTURING A BEVELLED STONE, PARTICULARLY FOR A HOROLOGICAL MOVEMENT

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. 1. A method for manufacturing a bevelled stone , for a timepiece , comprising the following steps:producing a precursor from a mixture of at least one material in powder form with a binder;pressing the precursor so as to form a green body, using a top die and a bottom die comprising a protruding rib,sintering said green body so as to form a body of the future stone in said at least one material, the body comprising a peripheral face and a bottom face provided with a groove, andmachining the body including a substep of planing 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.2. The method according to claim 1 , wherein the machining comprises a substep of recessing a recess in the top face of the body.3. The method according to claim 1 , wherein the machining comprises a substep of cutting the top face of the body claim 1 , in order to obtain a top face giving the stone a predetermined thickness.4. The method according to claim 1 , wherein the pressing comprises the recessing of a hole blank with a punch of the bottom die.5. The method according to claim 1 , wherein the groove is embodied to be circular and/or centred on the bottom face of the body.6. The method according to claim 1 , ...

WATCH PIVOT DEVICE

Method of assembly of a watch pivot device () or a watch mechanism () or a watch movement () or a timepiece (), the watch pivot device () or the watch mechanism () or the watch movement () or the timepiece () comprising a pivot () and a bearing (), the method comprising the following stages: (i) supplying the pivot (); (ii) supplying the bearing (); (iii) applying, to at least one surface () of the pivot and/or of the bearing, a lubricant of which the kinematic viscosity at a temperature of 20° C. is greater than 1.5 St; and (iv) positioning the pivot in the bearing. 1. A method of assembly of a watch pivot device or a watch mechanism or a watch movement or a timepiece , the watch pivot device or the watch mechanism or the watch movement or the timepiece comprising a pivot and a bearing , the method comprising the following stages:supplying the pivot;supplying the bearing;applying, to at least one surface of the pivot and/or of the bearing, a lubricant of which the kinematic viscosity at a temperature of 20° C. is greater than 1.5 St; andpositioning the pivot in the bearing.2. The method as claimed in claim 1 , wherein the lubricant is a polyalphaolefin-based lubricant.3. The method as claimed in claim 1 , wherein the kinematic viscosity of the lubricant at a temperature of 20° C. is greater than 1.6 St.4. The method as claimed in claim 1 , wherein the pivot is a balance staff pivot of an oscillator of the balance wheel and hairspring type.5. The method as claimed in claim 1 , wherein the pivot is a pivot of an element having a mass greater than 5×10g.6. A watch pivot device or a watch mechanism or a watch movement or a timepiece claim 1 , obtained by the implementation of a method as claimed in .7. A watch pivot device comprising a pivot and a bearing claim 1 , at least one surface of the pivot and/or of the bearing being coated with a lubricant of which the kinematic viscosity at a temperature of 20° C. is greater than 1.5 St.8. The device as claimed in claim 6 , ...

Method for making a flexure bearing mechanism for a mechanical timepiece oscillator

A method for making a flexure bearing for an oscillator with an inertial element oscillating in a plane supported by flexible strips fixed to a stationary support returning it to a rest position includes: forming the bearing with basic strips in superposed levels, each having an aspect ratio of less than 10; breaking down the number of basic levels into a plurality of sub-units, each including one or two strips joining a basic support and a basic inertial element, which are made by etching substrates; assembling the sub-units by joining their basic inertial elements; and fixing the basic supports to the support, directly or via translational tables along one or two in-plane translational degrees of freedom, of lower translational stiffness than that of the sub-unit.

PIVOT FOR TIMEPIECE MECHANISM

A pivot for a timepiece mechanism, including a first rotational guide member for radially holding an arbor in a plate, and a second front guide member for axially limiting an end of the arbor, and including at least one resilient shock absorber acting on at least the first rotational guide member and/or the second front guide member. The resilient shock absorber is made in a one-piece manner in a micromachinable material or in silicon or quartz or diamond with a structural element other than the first rotational guide member and the second front guide member. 119-. (canceled)20. A timepiece plate comprising:at least one pivot for a timepiece mechanism, the pivot including a first rotational guide member for radially holding an arbor in the plate, and a second front guide member for axially limiting an end of the arbor; andat least one resilient shock absorber acting on at least the first rotational guide member and/or the second front guide member, wherein the at least one resilient shock absorber is made in a one-piece manner by a MEMS or LIGA or lithography manufacturing technology for microcomponents, in a micromachinable material or silicon or quartz or diamond or ruby or corundum with at least one structural element other than the first rotational guide member and the second front guide member;the pivot including a first level and a second level which are superposed, and the first rotational guide member being suspended to the structural element via at least a first shock-absorber on the first level, and the second front guide member being suspended to the structural element via at least a second shock-absorber on the second level;the plate forming the structural element for at least one of the pivot comprised therein,wherein the first rotational guide member and the second front guide member are both made in a one-piece manner with the plate by a MEMS or LIGA or lithography manufacturing technology for microcomponents, in a micromachinable material or in ...

Compositions Comprising Bisphosphonic Compounds Dissolved In A Fluorinated Solvent, And Use Thereof For Covering The Surface Of A Part

The invention relates to a liquid composition characterised in that it contains at least one bisphosphonic compound bearing at least one partially fluorinated, perfluorinated (PF) or perfluorpolyether (PFPE) group, and in that the bisphosphonic compound is dissolved in at least one non-flammable fluorinated solvent. 1. A liquid composition characterised in that it contains at least one bisphosphonic compound bearing at least one partially fluorinated , perfluorinated (PF) or perfluoropolyether (PFPE) group , and in that said bisphosphonic compound is dissolved in at least one non-flammable fluorinated solvent.2. The composition of claim 1 , characterised in that said solvent or mixture of solvents contains hydrofluorocarbons (HFCs) claim 1 , hydrofluoro-ethers (HFEs) claim 1 , hydrofluoroolefins (HFOs) and perfluoropolyethers (PFPEs) used alone or in mixture.3. The composition of claim 2 , characterised in that:{'sub': '3-6', 'the hydrofluorocarbons are preferably hydrofluoro-(C) alkanes, in particular pentafluorobutane (HFC-365mfc),'}{'sub': 1-4', '-8, 'the hydrofluoro-ethers are preferably (C) alkoxy perfluoro-(C4) alkanes, in particular methoxy-nonafluorobutane (HFE-7100), ethoxy-nonafluorobutane (HFE-7200) and 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-terfluoromethyl-pentane (HFE-7300), and'}{'sub': 3', '10, 'the hydrofluoroolefins are preferably Cto Chydrofluoroolefins containing a single ethylenic double bond, in particular methoxy tridecafluoro heptene.'}{'sub': 2', '5, 'the perfluoropolyethers are molecules having a Cto Cperfluorinated carbon chain interspersed with oxygen atoms, in particular perfluoropropylene oxide polymer.'}4. The composition of one of to claim 2 , characterised in that said solvent or mixture of solvents also contains non-fluorinated solvents.5. The composition of one of to claim 2 , characterised in that said solvent or mixture of solvents does not have a flash point.6. The composition of claim 5 , characterised in that said solvent ...

Timepiece assembly and method for manufacturing the same

A timepiece assembly including a first component and a second component assembled under stress, wherein at least one part of the surface of the assembly is coated with a protective layer intended to cover defects such as cracks or incipient cracks after assembly. It also relates to the method for manufacturing this assembly.

MULTI-BLADE SHOCK ABSORBER

The present invention relates to a shock-absorbing device for a staff of a wheel set of a timepiece arranged on a support, wherein said support is provided with an at least partially through slot for a pivot element cooperating with a pivot shank of the staff of the wheel set to be inserted therein, wherein said device additionally comprises a spring means comprising at least a first blade and a second blade. 1. A shock-absorbing device for a staff of a wheel set of a timepiece arranged on a support , wherein said support is provided with an at least partially through slot for a pivot element cooperating with a pivot shank of the staff of the wheel set to be inserted therein , wherein said device additionally comprises a spring means comprising at least a first blade and a second blade spaced from one another extending from the support , and wherein the first blade is in contact with said pivot element and exerts a prestress.2. The device according to claim 1 , wherein said blades extend in parallel.3. The device according to claim 1 , wherein said blades extend in the same direction.4. The device according to claim 1 , wherein said blades extend in a convergent direction claim 1 , wherein the point of intersection of the blades is located facing the pivot element.5. The device according to claim 1 , wherein said pivot element consists of a free pivot stone axially in said slot claim 1 , wherein said pivot stone comprises a recess claim 1 , in which the pivot shank of the shaft is inserted.6. The device according to claim 1 , wherein said pivot element consists of a free setting axially in said slot claim 1 , wherein a pierced stone and an endstone are driven into said setting.7. The device according to claim 1 , wherein said pivot element and the first blade only form one single piece.8. The device according to claim 1 , wherein said pivot element is a pivot stone driven into a hole arranged on the first blade.9. The device according to claim 1 , wherein said first ...

ISOCHRONOUS PIVOT FOR TIMEPIECE RESONATORS

Isochronous pivot for a resonator including two flexible strips joining attachment points of a first and a second element, defining two strip directions, and a pivot axis, at the intersection of their projections or at their intersection, each strip having a free length between its attachment points, and an axial distance between the pivot axis and the attachment point thereof farthest from the axis, the attachment point ratio X=D/L being greater than one for each strip, the strip directions defining with the axis a first apex angle whose value in degrees is comprised between f1(X)=108+67/(10X−6), and f2(X)=113+67/(10X−6). 1. An isochronous pivot for a timepiece resonator , with a flexure bearing , comprising at least one pair including two flexible strips each joining a first point of attachment of a first element to a second point of attachment of a second element , said first attachment points defining , with said respective second attachment points , two main strip directions , said first element and said second element each being stiffer than each of said flexible strips , and each able to form a movable inertial element inside a said resonator , and said two main strip directions defining a theoretical pivot axis , at their crossing point when said two flexible strips are coplanar , or at the crossing point of their projections onto a reference plane parallel to said two flexible strips , when said two flexible strips extend on two levels parallel to said reference plane but are not coplanar , each said flexible strip having a free length between its two attachment points , and having an axial distance between said theoretical pivot axis and whichever of its two attachment points is farthest therefrom , and wherein , for each said flexible strip , the main attachment point ratio between said axial distance and said free length is greater than one , wherein said two main strip directions define with said theoretical pivot axis a first apex angle whose value in ...

ISOCHRONOUS PIVOT FOR TIMEPIECE RESONATORS

An isochronous pivot for a resonator including two flexible strips joining attachment points of a first and a second element, defining two strip directions, and a pivot axis, at the intersection of their projections or at their intersection, each strip having a free length between its attachment points, and an axial distance between the pivot axis and the attachment point thereof farthest from the axis, the attachment point ratio X=D/L being greater than one for each strip, the strip directions defining with the axis a first apex angle whose value in degrees includes between f(X)=108+67/(10X−6), and f(X)=113+67/(10X−6). 1121212121212. An isochronous pivot for a timepiece resonator , with a flexure bearing , comprising at least one pair including two flexible strips each joining a first point of attachment of a first element to a second point of attachment of a second element , said first attachment points defining , with said respective second attachment points , two main strip directions , said first element and said second element each being stiffer than each of said flexible strips , and each able to form a movable inertial element inside a said resonator , and said two main strip directions defining a theoretical pivot axis at their intersection when said two flexible strips are coplanar , or symmetrical in projection onto a reference plane parallel to said two flexible strips when said two flexible strips extend on two levels parallel to said reference plane but are not coplanar , each said flexible strip having a free length between its two attachment points , and having an axial distance between said theoretical pivot axis and whichever of its two attachment points is farthest therefrom , and wherein , for each said flexible strip , the main attachment point ratio between said axial distance and said free length is greater than one , wherein said two main strip directions define with said theoretical pivot axis a first apex angle whose value in degrees ...

MICROMECHANICAL TIMEPIECE PART COMPRISING A LUBRICATED SURFACE AND METHOD FOR PRODUCING SUCH A MICROMECHANICAL TIMEPIECE PART

The invention relates to a micromechanical timepiece part comprising a silicon-based substrate () having at least one surface, at least one part of said surface having pores () which open out at the external surface of the micromechanical timepiece part and comprise a tribological agent (). 1. A micromechanical timepiece part comprising a silicon-based substrate , having at least one surface , wherein at least one part of said surface has pores which open out at the external surface of the micromechanical timepiece part and comprise a tribological agent.2. The micromechanical timepiece part according to claim 1 , wherein the pores have an aspect factor (depth:diameter ratio) between 5 and 100.3. The micromechanical timepiece part according to claim 1 , wherein the pores have a depth greater than 100 μm.4. The micromechanical timepiece part according to claim 3 , wherein the pores have a depth greater than 200 μm.5. The micromechanical timepiece part according to claim 4 , wherein the pores have a depth greater than 300 μm.6. The micromechanical timepiece part according to claim 1 , wherein it comprises claim 1 , between the pores claim 1 , silicon-based fibres.7. The micromechanical timepiece part according to claim 6 , wherein the silicon-based fibres have an aspect factor (depth : diameter ratio) between 5 and 100.8. The micromechanical timepiece part according to claim 6 , wherein the silicon-based fibres comprise walls which are covered with at least one wetting agent for the tribological agent claim 6 , the silicon-based fibres being impregnated with the tribological agent.9. The micromechanical timepiece part according to claim 6 , wherein silicon-based fibres comprise walls which are covered with at least one polymer brush claim 6 , the silicon-based fibres and the polymer brush being impregnated with the tribological agent.10. The micromechanical timepiece part according to claim 1 , wherein the tribological agent is a perfluorocarbonated polymer.11. The ...

METHOD FOR MANUFACTURING A MICROMECHANICAL TIMEPIECE PART AND SAID MICROMECHANICAL TIMEPIECE PART

A method for manufacturing a micromechanical timepiece part starting from a silicon-based substrate, including, providing a silicon-based substrate, forming pores on the surface of at least one part of a surface of the silicon-based substrate of a depth of at least 10 μm, preferably of at least 50 μm, and more preferably of at least 100 μm, the pores being designed in order to open out at the external surface of the micromechanical timepiece part. A micromechanical timepiece part including a silicon-based substrate which has, on the surface of at least one part of a surface of the silicon-based substrate, pores of a depth of at least 10 μm, preferably of at least 50 μm, and more preferably of at least 100 μm, the pores being designed in order to open out at the external surface of the micromechanical timepiece part. 1. A method for manufacturing a micromechanical timepiece part starting from a silicon-based substrate , comprising , in order , the steps of:a) providing a silicon-based substrate,b) forming pores on the surface of at least one part of a surface of said silicon-based substrate of a depth of at least 10 μm, said pores being designed in order to open out at the external surface of the micromechanical timepiece part.2. The method according to claim 1 , wherein the depth of the pores is at least 50 μm.3. The method according to claim 2 , wherein the depth of the pores is at least 100 μm.4. The method according to claim 1 , comprising claim 1 , after step b) claim 1 , a step c) consisting of entirely filling said pores with a material chosen from diamond claim 1 , diamond-like carbon (DLC) claim 1 , silicon oxide claim 1 , silicon nitride claim 1 , ceramics claim 1 , polymers and mixtures thereof claim 1 , in order to form claim 1 , in the pores claim 1 , a layer of said material of a thickness at least equal to the depth of the pores.5. The method according to claim 4 , comprising claim 4 , after step c) claim 4 , a step d) of forming a surface layer of ...

SHOCKPROOF PROTECTION WITH BANKING OF A ROTARY FLEXIBLE GUIDANCE RESONATOR MECHANISM

A horological resonator mechanism, including a structure and an anchoring unit from which is suspended at least one inertial element arranged to oscillate along a first degree of freedom in rotation RZ about a pivoting axis extending along a first direction Z, the inertial element being subjected to return forces exerted by a virtual pivot including a plurality of substantially longitudinal elastic strips, each fastened, at a first end to the anchoring unit, and at a second end to the inertial element. Each elastic strip is deformable essentially in a plane XY perpendicular to the first direction Z. The anchoring unit is suspended from the structure by a flexible suspension arranged to allow the mobility of the anchoring unit along a plurality of degrees of freedom including at least two in the plane XY, along a direction X and along a direction Y orthogonal to the direction X. 1. A horological resonator mechanism , comprising a structure and an anchoring unit from which is suspended at least one inertial element arranged to oscillate along a first degree of freedom in rotation RZ about a pivoting axis extending along a first direction Z , said inertial element being subjected to return forces exerted by a virtual pivot including a plurality of substantially longitudinal elastic strips , each fastened , at a first end to said anchoring unit , and at a second end to said inertial element , each said elastic strip being deformable essentially in a plane XY perpendicular to said first direction Z , said anchoring unit being suspended from said structure by a flexible suspension arranged to allow the mobility of said anchoring unit along a plurality of degrees of freedom including at least two in the plane XY , along a direction X and along a direction Y orthogonal to said direction X , said flexible suspension including , between said anchoring unit and a first intermediate mass , which is fastened to said structure directly or with a flexible plate along said first ...

Mystery-drive mechanical or electromechanical timepiece

A mechanical or electromechanical timepiece including a watch case delimiting an internal volume, the watch case including a back delimiting the watch case at the bottom; a crystal closing the watch case at the top, the crystal defining a useful display aperture; a middle part connecting the back and the crystal to one another; a horological movement housed in the internal volume of the watch case; at least one hand for displaying information visible via a useful display aperture and rotated with respect to the watch case by the horological movement with at least one driving belt extending at least partially in the useful display aperture, the timepiece includes the internal volume of the watch case filled with a fluid wherein at least one driving belt is submerged, and wherein the driving belt is made of a material wherein the optical refractive index is equal or substantially equal to that of the fluid.

HAND ROTATING AROUND TWO AXES

A display mechanism of a watch including at least one indicator member and a drive member assembly. The indicator member is mounted to rotate about a first axis of rotation and is configured to indicate a time. The indicator member also has a second axis of rotation extending along the indicator member and a rotary element mounted to rotate about the second axis of rotation. The drive assembly includes a first drive member and a second drive member such that the first drive member drives the rotary element when it is moving about the first axis of rotation. 1. A display mechanism for a watch , said display mechanism comprising at least:at least one indicator member being mounted to rotate about a first axis of rotation via a first part, and being configured to move relative to a dial so as to indicate a first piece of information; said at least one indicator member being mounted to rotate about a second axis of rotation intersecting said first axis of rotation and extending longitudinally along said at least one indicator member and comprising at least one rotary element mounted to rotate about said second axis of rotation via a second part so as to indicate at least one second piece of information;at least one drive member assembly comprising at least one first drive member and at least one second drive member, said at least one second drive member being arranged on or in said at least one rotary element, and being driven by said at least one first drive member;said at least one first drive member being configured to cooperate with said at least one second drive member in such a way as to drive said at least one rotary element in a rotational movement via said at least one second drive member,when said at least one indicator member is rotatable about said first axis of rotation and/orwhen said at least one drive member is rotatable about said first axis of rotation,wherein:said at least one indicator member is a second hand, a minute hand or an hour hand.2. The ...

BEARING OF AN HOROLOGICAL MOVEMENT, IN PARTICULAR SHOCK-ABSORBING, FOR A ROD OF A ROTATING WHEEL

An element for radial guiding of a pivot of a rod of a rotating wheel, for example a rod of a balance, for a bearing of an horological movement, in particular shock-absorbing, the guide element including a body configured to cooperate with a bearing unit in such a way as to be maintained in the unit, the body defining a space for radial retention of the pivot, to maintain the rod radially while allowing it to rotate. The radial guide element includes at least three localized radial-bearing parts distributed angularly, the three parts defining the radial retention space, each part having a face for contact with the pivot, each face locally having a cylindrical shape convex towards the inside of the radial retention space, the bearing parts having an elongated body. 115-. (canceled)16. A guide element for radial guiding of a pivot of a rod of a rotating wheel for a bearing of an horological movement , in particular shock-absorbing , the guide element including a body configured to cooperate with a bearing unit in such a way as to be maintained in the unit , the body defining a space for radial retention of the pivot , to maintain the rod radially while allowing it to rotate , characterised in that it includes at least three parts for localized radial bearing distributed angularly , the three parts defining said radial retention space , each part having a face for contact with said pivot , each face locally having a cylindrical shape convex towards the inside of the radial retention space , the bearing parts having an elongated body.17. A guide element for radial guiding of a pivot of a rod of a rotating wheel for a bearing of an horological movement , in particular shock-absorbing , the guide element including a body configured to cooperate with a bearing unit in such a way as to be maintained in the unit , the body defining a space for radial retention of the pivot , to maintain the rod radially while allowing it to rotate , characterised in that it includes at least ...

FUNCTIONAL MICROMECHANICAL ASSEMBLY

A functional micromechanical timepiece assembly including at least a first component, including a first layer defining a first contact surface configured to come into friction contact with a second contact surface defined by a second layer, the second layer belonging, either to the first component, or to at least a second micromechanical component forming the assembly with the first component. The first and second layers each include carbon with at least 50% carbon atoms and, on the first and second contact surfaces, the layers have different surface crystalline plane orientations from each other. 118-. (canceled)19. A functional micromechanical timepiece assembly comprising:at least a first component including at least a first face, the at least first face being coated with a first layer defining a first contact surface configured to come into friction contact with a second contact surface defined by a second layer coating at least a second face, either of the first component or at least a second micromechanical timepiece component forming the assembly with the first component,wherein the first and second layers each include carbon with at least 50% carbon atoms, the first contact surface has a first determined crystalline plane orientation, the second contact surface has a second determined crystalline plane orientation, and the first and second determined orientations are different from each other.20. The functional micromechanical timepiece assembly according to claim 19 , wherein at least the first layer has a microcrystalline structure at least on the first contact surface.21. The functional micromechanical timepiece assembly according to claim 20 , wherein the first and second layers each have a microcrystalline structure at least on the respective contact surfaces thereof.22. The functional micromechanical timepiece assembly according to claim 19 , wherein claim 19 , at least on the first contact surface claim 19 , crystalline planes of the first layer ...

OPAQUE RED POLYCRYSTALLINE CERAMIC

A polycrystalline ceramic solely formed based on alumina, on chromium oxide and on magnesium oxide, where the polycrystalline ceramic contains between 0.8% and 1.2% of chromium oxide by total weight of the polycrystalline ceramic and between 0.03% and 0.09% of magnesium oxide by total weight of the polycrystalline ceramic, making it possible to obtain a red ceramic with a toughness (K) at least equal to 2.8 MPa·m. 1: A polycrystalline ceramic solely formed based on alumina , on chromium oxide and on magnesium oxide , wherein the polycrystalline ceramic comprises between 0.8% and 1.2% of chromium oxide by total weight of the polycrystalline ceramic and between 0.03% and 0.09% of magnesium oxide by total weight of the polycrystalline ceramic , making it possible to obtain a red ceramic with a toughness (K) at least equal to 2.8 MPa·m.2: The polycrystalline ceramic of claim 1 , wherein the polycrystalline ceramic has a density at least equal to 3.9 g·cm.3: The polycrystalline ceramic of claim 1 , wherein the polycrystalline ceramic comprises a CIELAB colorimetric space claim 1 , the hue angle (H) of which is between 19° and 27°.4: The polycrystalline ceramic of claim 3 , wherein the polycrystalline ceramic comprises a CIELAB colorimetric space claim 3 , the L* component of which is between 37 and 45 claim 3 , the a* component of which is between 15 and 26 and the b* component of which is between 5 and 13.5: The polycrystalline ceramic of claim 3 , wherein the polycrystalline ceramic comprises substantially 98.92% of alumina claim 3 , substantially 1.02% of chromium oxide and substantially 0.06% of magnesium oxide.6: A timepiece claim 1 , comprising a member completely or partially formed using a polycrystalline ceramic of .7: A process for the manufacture of a polycrystalline ceramic claim 1 , the process comprising:a) forming a mixture in the powder form comprising between 0.5 mol % and 0.8 mol % of chromium cations, between 0.04 mol % and 0.12 mol % of magnesium ...

TIMEPIECE BEARING

A cage () for separating rolling bodies () for a bearing (), particularly for a timepiece bearing, the cage having first openings () for receiving rolling bodies and at least one first contact zone () intended to come into contact with a bearing ring and having at least one first hollow formation (). 1. A cage for separating rolling bodies for a bearing , particularly for a timepiece bearing , the cage comprising:first openings for receiving rolling bodies, andat least one first contact zone intended to come into contact with a bearing ring and having at least one hollow formation.2. The cage as claimed in claim 1 , wherein the cage has a substantially flat annular shape or wherein the cage has a substantially cylindrical shape.3. The cage as claimed in claim 1 , wherein the cage comprises a first edge and a second edge claim 1 , the first openings being openings emerging on the first edge or on the second edge and/or the at least one first hollow formation comprises at least one second opening passing through a thickness the cage.4. The cage as claimed in claim 3 , wherein the cage has a substantially flat annular shape claim 3 , the first edge being an outer edge and the second edge being an inner edge claim 3 , or wherein the cage has a substantially cylindrical shape claim 3 , the first edge being an edge of a first end and the second edge being an edge of a second end.5. The cage as claimed in claim 1 , wherein the cage comprises a plurality of hollow formations claim 1 , particularly a plurality of second openings claim 1 , each disposed between two first adjacent openings.6. The cage as claimed in claim 1 , wherein the contact zone comprises at least one first projecting formation claim 1 , a top of the at least one first projecting formation being intended to participate in a cage-bearing ring interface.7. The cage as claimed claim 6 , wherein the at least one first projecting formation comprises a rib of circular or substantially circular shape and/or ...

TIMEPIECE COMPONENT MADE OF WELDED MATERIALS

A timepiece component includes a first silicon-based or ceramic-based part, and a second metal-based part. One surface of the first part is directly welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts without addition of material. A method for fabrication of a timepiece component for a timepiece includes forming a first silicon-based or ceramic-based part and a second metal-based part, mounting a surface of the first part on a surface of the second part, and welding, using laser-type electromagnetic radiation, the surface of the first part mounted directly on the surface of the second part, in order to secure the parts to each other without addition of material. 119-. (canceled)20. A timepiece component comprising:a first silicon-based part and a second metal-based part, wherein one surface of the first part is directly welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts without addition of material.21. The timepiece component according to claim 20 , wherein the first silicon-based part includes single crystal silicon claim 20 , doped single crystal silicon claim 20 , polycrystalline silicon claim 20 , doped polycrystalline silicon claim 20 , porous silicon claim 20 , silicon oxide claim 20 , quartz claim 20 , silica claim 20 , silicon nitride or silicon carbide.22. The timepiece component according to claim 21 , wherein the first silicon-based part further includes at least a partial coating of silicon oxide claim 21 , silicon nitride claim 21 , silicon carbide or an allotrope of carbon.23. A timepiece component comprising:a first ceramic-based part and a second metal-based part, whereinone surface of the first part is directly welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts without addition of material.24. The timepiece component according to claim 23 , wherein the first ceramic- ...

Shockproof system with secure mounting

A shock absorber device for an arbour of a timepiece element including a support including a base cup surmounted by a peripheral rim delimited, opposite the cup, by an upper surface and including an outer wall, the cup and the rim defining together a recess. The device further includes at least one pivot module extending along an axis, the at least one pivot module being arranged in the recess and configured to cooperate with the arbour and a cap formed by a hollow part fixed to the support on the peripheral rim, the cap including an inner wall on which at least one groove is arranged so that an elastic mechanism can be placed therein.

High quality factor resonator for mechanical watches

Movement including an escapement mechanism and a resonator including an inertial element subjected to the action of a flexible gimbal and cooperating with an escape wheel set pivoting about a main axis, which includes driving means cooperating in a continuous transmission of motion with complementary means of the inertial element in every angular position of the latter, the flexible gimbal tending to return these complementary means towards the main axis, and including elastic return means about axes orthogonal to the main axis and restricting the mobility of the inertial element in two rotational degrees of freedom, about a fixed position of the centre of inertia of the inertial element with respect to a plate.

EPILAME-COATED NOBLE PRODUCT

The present invention concerns an epilame-coated product including a substrate on which an epilame is deposited, characterized in that the product further includes an adhesion layer located between the substrate and having chemical affinity with said epilame. 1. An epilame-coated product including a substrate on which an epilame is deposited , wherein the product further includes an adhesion layer located between the substrate and the epilame and having chemical affinity with said epilame so that said epilame and said substrate can be hooked together via a chemical linkage.2. The product according to claim 1 , wherein the epilame includes at least an anchor part and a functional part claim 1 , said adhesion layer having chemical affinity with said anchor part.3. The product according to claim 1 , wherein the chemical linkage is of the covalent type.4. The product according to claim 2 , wherein the chemical linkage is of the covalent type.5. The product according to claim 1 , wherein the chemical linkage is the hydrogen linkage.6. The product according to claim 2 , wherein the chemical linkage is the hydrogen linkage.7. The product according to claim 2 , wherein the anchor is of the silane type and the adhesion layer is an oxide.8. The product according to claim 3 , wherein the anchor is of the silane type and the adhesion layer is an oxide.9. The product according to claim 4 , wherein the anchor is of the silane type and the adhesion layer is an oxide.10. The product according to claim 7 , wherein the oxide of the adhesion layer is selected from the list including silicon oxide claim 7 , aluminium oxide claim 7 , titanium dioxide or a combination of these elements.11. The product according to claim 8 , wherein the oxide of the adhesion layer is selected from the list including silicon oxide claim 8 , aluminium oxide claim 8 , titanium dioxide or a combination of these elements.12. The product according to claim 9 , wherein the oxide of the adhesion layer is selected ...

TIMEPIECE DISPLAY DEVICE ON MULTIPLE LEVELS

A timepiece display device including a first display element and a second display element superimposed above a fixed part including a main bearing surface, this second display element is subjected to opposing forces exerted, on the one hand by lower return means which tend to bring the second display element closer to the first display element, and, on the other hand, by upper return mechanism which tends to move the second display element away from the first display element without contact between them or else by mechanical spacing device which includes a bearing surface providing a stop bearing function on a stop surface of the second display element, to limit the travel from the second display element to the first display element. 1. A timepiece display device comprising a first display element and at least a second display element which are substantially flat superimposed above a fixed part including a main bearing surface , wherein at least one said second display element is subjected to opposing forces exerted in a frontal direction by lower return means , included in said device , and which tend to bring said at least second display element closer to a first lower surface included in said first display element , and further by upper return means which tend to move said at least second display element away from said first lower surface of said first display element without contact between said second display element and said first display element and/or by mechanical spacing means , included in said device , and which include a bearing surface arranged to provide a stop bearing function on a stop surface included in said second display element , to limit the travel of the second display element towards said first lower surface.2. The timepiece display device according to claim 1 , wherein said device extends over several parallel or substantially parallel levels claim 1 , and includes claim 1 , separated from the user by a crystal claim 1 , said first display ...

Flexible bearing for pivoting a mobile timepiece element

Elementary timepiece mechanism comprising a first housing about an axis, a second housing, and a mobile element comprising a first shoulder pivoting in the first housing and a second shoulder pivoting in the second housing, the second housing comprising at least a first abutment surface arranged to ensure the alignment of the mobile element on said axis when the mobile element is in abutment on the first abutment surface, and the elementary mechanism includes at least one elastic return means arranged to return the mobile element to this first abutment surface.

SHOCK ABSORBER WITH A BAYONET FITTING

A shock absorber device for an arbor of a timepiece element including: a support including a base cup surmounted by a peripheral rim, which is delimited, opposite the cup, by an upper surface, the cup and the rim together defining a housing; a pivot system extending along an arbor, the pivot system being arranged in the housing and including a base including an elastic return mechanism at the periphery thereof, formed by at least one curved arm, including an opening in which is inserted a pivot element configured to cooperate with the arbor. The at least one curved arm is used for locking the pivot system in a bayonet fitting. 112-. (canceled)13. A shock absorber device for an arbor of a timepiece element , comprising:a support comprising a base cup surmounted by a peripheral rim, which is delimited, opposite the cup, by an upper surface, the cup and the rim together defining a housing;at least one pivot system extending in a direction perpendicular to an arbor, the at least one pivot system being arranged in the housing and comprising a base comprising elastic return means at a periphery thereof, formed by at least one curved arm, the base comprising a pivot element configured to cooperate with the arbor;wherein the rim comprises in thickness thereof at least one cavity comprising a recess parallel to the arbor which opens on the upper surface, and, secant with the first recess and opposite the upper surface, a blind groove used for locking a curved arm of the at least one pivot system in a bayonet fitting.14. The shock absorber device according to claim 13 , wherein the at least one arm comprises a free end engaging in the at least one groove.15. The shock absorber device according to claim 14 , wherein the groove comprises a hollow in which a catch claim 14 , located at the free end of the at least one curved arm claim 14 , is inserted.16. The shock absorber device according to claim 13 , wherein the pivot element comprises a single jewel.17. The shock absorber ...

HOROLOGICAL MOBILE COMPONENT WITH ELEMENT MAINTAINED BY FRICTION

A horological mobile component, including around an axis, a first element including a first shoulder and a second element including a second shoulder which cooperates by friction with a third shoulder that is included by a third element interposed between the first element and the second element, this third element includes a fourth shoulder cooperating by friction with the first shoulder or being driven onto this first shoulder, and the diameter of the third shoulder is at least double the diameter of the fourth shoulder, and the second element includes a main hollow defining at least two bearing surfaces each including one or two bearing sectors belonging to the second shoulder. 1. A horological mobile component with an element maintained by friction , comprising a first element including a first shoulder around an axis , and a second element including a second shoulder around said axis , wherein said second shoulder of said second element cooperates by friction with a third shoulder that is included , around said axis , by a third element interposed between said first element and said second element , which said third element includes a fourth shoulder which cooperates by friction with said first shoulder or which is fastened onto said first shoulder , and wherein the minimum bearing diameter , with respect to said axis , of said third shoulder is at least double the maximum bearing diameter of said fourth shoulder , wherein said second element includes a main hollow defining at least two bearing surfaces each including one or two bearing sectors belonging to said second shoulder.2. The mobile component according to claim 1 , wherein said fourth shoulder cooperates by friction with said first shoulder.3. The mobile component according to claim 2 , wherein the friction torque between said fourth shoulder and said first shoulder is greater than the friction torque between said second shoulder and said third shoulder.4. The mobile component according to claim 1 , ...

STRIKING MECHANISM, WATCH AND REGULATOR

A regulator for a striking mechanism of a mechanical watch including a base, which can be assembled in a fixed manner with regard to the housing and which rotatably mounts a rotary wheel. At least two mass elements are arranged on the rotary wheel and by way of a rotation of the rotary wheel are deflectable radially outwards counter to a spring force on account of the centrifugal force, in order to regulate the rotation speed of the rotary wheel. At least three bearing elements are attached to the base, the bearing elements engaging peripherally on the rotary wheel, in order to mount this relative to the base. 1. A regulator for a striking mechanism for a mechanical watch , the regulator comprisinga base equipped to be assembled in a fixed manner with regard to the housing,and a rotary wheel,wherein the rotary wheel is rotatably mounted relative to the base and carries at least two mass elements, the mass elements being deflectable, by a centrifugal force, radially outwards counter to a spring force upon a rotation of the rotary,so as to regulate a rotation speed of the rotary wheel,the regulator further comprising at least three bearing elements attached to the base, said bearing elements engaging peripherally on the rotary wheel in order to mount the rotatory wheel relative to the base.2. The regulator according to claim 1 , wherein the bearing elements are ball bearings.3. The regulator according to claim 1 , wherein the rotary wheel comprises a radially outer outside surface serving as a running surface for the bearing elements.4. The regulator according to claim 3 , wherein the outer surface forms a groove into which an outer ring of the bearing elements engages.5. The regulator according to claim 1 , wherein the mass elements are coupled onto one another so that they can only be deflected together.6. The regulator according to claim 5 , comprising a single spring element which commonly exerts the spring force which counteracts the centrifugal force claim 5 , ...

MAGNETIC ANTI-SHOCK SYSTEM FOR A TIMEPIECE ARBOR

Sub-assembly for watches, including an arbor including a magnetized or electrically charged surface pivoting inside a housing, and a pole piece subjecting this surface to a magnetic or electrostatic field about an axis, one pole piece cooperating axially with this surface to absorb a shock and then return the arbor to an operating position, and creating, in proximity to this surface, a magnetic or electrostatic field, which radially attracts the arbor towards a wall of the housing. 115-. (canceled)16: A timepiece sub-assembly for watches , comprising a main structure and an arbor pivotally movable about an axis of pivoting inside at least one housing of said main structure , said arbor comprising at least one surface made of a magnetized or magnetically conductive material , or respectively of an electrically charged or electrostatically conductive material , and said main structure including at least one pole piece , which is arranged to create , in proximity to at least one said surface , at least one magnetic field or respectively one electrostatic field , for the axial and/or magnetic retention of said arbor , wherein at least one said pole piece is arranged to cooperate in axial and radial attraction or repulsion , along said axis of pivoting with at least one said surface , to absorb a radial shock and to return said arbor to the operating position after said shock ceases , and wherein at least one pole piece is arranged to create , in proximity to at least one said surface , at least one said magnetic or respectively electrostatic field , which tends to radially attract said arbor towards a wall of said housing.17: The timepiece sub-assembly according to claim 16 , wherein at least one said field ensures said attraction or repulsion of said arbor axially claim 16 , and is substantially of revolution about said axis of pivoting claim 16 , is a magnetic field claim 16 , and wherein the axial component thereof claim 16 , along said axis of pivoting claim 16 , ...

PROTECTION FOR THE STRIPS OF A MECHANICAL WATCH RESONATOR

Strip resonator for a mechanical watch movement, comprising a structure, an oscillating inertial element, and elastic strips forming a flat bearing for the inertial element, and a flat, anti-shock device arranged to protect each strip from rupture in the event of a shock, and including a first prestressed flexible element arranged to allow a variation in length during the expansion or contraction of a strip within a range of lengths corresponding to normal operation of this strip under the action of a stress of intensity lower than a first threshold, and to prevent the expansion or contraction of this strip when it is subjected to a tensile or respectively compressive stress of intensity higher than the first threshold, and the resonator includes, for the three-dimensional anti-shock protection of the strips, in an axial direction perpendicular to a main plane, axial protection means, which include, on the one hand, axial banking members for limiting the axial travel of at least one inertial element, and on the other hand, an axial anti-shock device comprising a second axially prestressed flexible element. 1. A strip resonator for a mechanical movement of a watch arranged to be fixed to a plate of a said movement or to form a said plate , said resonator including a structure , arranged to be fixed to said plate or to form said plate , and with respect to which structure at least one inertial element is arranged to vibrate and/or to oscillate , and said resonator including at least one elastic strip extending between , at a first end , a first anchorage arranged on said structure , and at a second end , a second anchorage arranged on a said at least one inertial element , and said strip being arranged to vibrate essentially in a main plane , wherein said at least one strip forms a bearing for said inertial element in said main plane , and wherein , for the anti-shock protection of said strips comprised therein , said resonator includes , on said first anchorage and/ ...

FLEXIBLE STRIP FOR HOROLOGY AND METHOD FOR MANUFACTURING THE SAME

A method for manufacturing a flexible strip, including forming a plate of the required thickness with one or more micromachinable substrate wafers; affixing, on either side of the plate, an upper mask with an upper window and a lower mask with a lower window, of identical geometry; etching the plate, at least to mid-thickness, from the upper side of each upper etching window, and from the side of each lower etching window; removing the upper mask and the lower mask, to delimit a flexible strip having a height equal to the thickness of the plate, and whose edges are as-etched. A flexible strip made of micromachinable material, including, between two parallel upper and lower surfaces, two peripheral, tapered and reverse-tapered edge surfaces, for a flexible pivot, a resonator, a movement or a watch. 1. A method for manufacturing at least one straight flexible strip for horology made of micromachinable material , comprising an upper surface and lower surface which are parallel , including at least the steps of:taking at least one substrate wafer made of micromachinable material, including an upper face and lower face which are parallel;forming a plate of the required thickness with a single said substrate wafer, or by joining a plurality of said substrate wafers;affixing a first, upper mask including at least one upper window on the upper face of said plate, and a second, lower mask including at least one lower window on the lower face of said plate;etching said plate, to a lower etch depth than said required thickness, from an upper side at each said upper window, creating, adjacent to said upper surface, a first peripheral edge surface tapered with respect to said upper surface, over a first height, and creating, from a lower side at each said lower window, remote from said upper surface and adjacent to said lower surface, a second peripheral edge surface reverse-tapered with respect to said first peripheral edge surface;removing said first, upper mask and said ...

TIMEPIECE COMPONENT

A timepiece component includes a core made of material suitable for electroforming, containing nickel-phosphorus or made of nickel-phosphorus, which core is, at least locally, coated with a surface layer of gold or gold alloy, to improve its tribological behaviour in areas including the surface layer of gold or gold alloy. The component is made by a fabrication method that includes the steps consisting in preparing a composition suitable for creating a solid core by a LIGA or electroforming method; shaping the solid core by a LIGA or electroforming method; coating the solid core, at least locally in areas subject to friction, with a gold or gold alloy surface layer. 1. A timepiece component , comprising a core made of material suitable for electroforming , which core is , at least locally , coated with a surface layer of gold or gold alloy , to improve the tribological behaviour thereof in the areas including said surface layer of gold or gold alloy , wherein said core is made of a single type of material suitable for electroforming , which contains nickel.2. The component according to claim 1 , wherein said material suitable for electroforming contains cobalt.3. The component according to claim 1 , wherein said material suitable for electroforming contains tungsten.4. The component according to claim 1 , wherein said material suitable for electroforming contains nickel-phosphorus.5. The component according to claim 4 , wherein said material suitable for electroforming includes 8 to 15 mass percent of phosphorus in the nickel-phosphorus contained therein.6. The component according to claim 5 , wherein said material suitable for electroforming is made of nickel-phosphorus and contains from 8 to 15 mass percent of phosphorus claim 5 , and in that said surface layer of gold or gold alloy contains at least 99.0 mass percent of gold.7. The component according to claim 6 , wherein said gold or gold alloy surface layer is a surface layer of thickness less than or equal to ...

TIMEPIECE COMPONENT WITH IMPROVED TRIBOLOGY

A timepiece component comprising a dry, self-lubricating surface layer, consisting entirely of boric acid, having a thickness of 50 nanometres to 1 micrometre. A method for coating a timepiece component with a self-lubricating surface layer, including dissolving, at ambient temperature, boric acid HBOgranules or powder in a solvent chosen from among water, isopropanol, propanol, methanol, methyl propanol, glycol ethylene, glycerol, acetone, in a proportion of 0.01% to 1.0% by mass; mixing and agitating the solution; dipping the component to be coated in this solution; removing the component from the solution and allowing the liquid phase to evaporate, with the surface forming the surface layer kept away from any foreign bodies, until evaporation is complete; and repeating the dipping and evaporation steps until the desired layer thickness is obtained, from 10 nanometres to 1 micrometer, or more particularly from 50 nanometres to 1 micrometre. 1. A timepiece component comprising at least one self-lubricating surface layer , wherein said surface layer is a dry layer consisting entirely of boric acid HBOand has a thickness comprised between 50 nanometres and 1 micrometre.2. The component according to claim 1 , wherein said component comprises claim 1 , underneath said surface layer claim 1 , a substrate formed of silicon oxide SiOor aluminium oxide AlO claim 1 , or which is coated with an intermediate layer formed of silicon oxide SiOor aluminium oxide AlO.3. The component according to claim 1 , wherein said component comprises claim 1 , underneath said surface layer claim 1 , a substrate made of silicon or silicon oxide or CVD diamond or another microfabrication material.4. The component according to claim 1 , wherein said component comprises claim 1 , underneath said surface layer claim 1 , a ceramic substrate.5. The component according to claim 1 , wherein said component comprises claim 1 , underneath said surface layer claim 1 , a substrate made of steel or copper ...

METHOD FOR MANUFACTURING A TIMEPIECE BEARING

A method for manufacturing a pivot bearing () for the pivoting of a timepiece component (), in particular a pivot stone, includes:—boring (E) a hole () in a bearing blank () along an axis (A) intended for the pivoting of a timepiece component (), this hole () forming a start point () of a first pivot zone () of the bearing (), then—laser engraving (E), in the blank (), in particular using a femtosecond laser, a second clearance zone () of the bearing (), juxtaposed with the start point () of a first pivot zone (), this second clearance zone () of the bearing () opening at a first face () of the bearing () blank (), then—removing material by wear (E), in particular by olive-cutting, at the start point () of the first pivot zone () of the bearing () and a boundary zone () between the start point () and the second clearance zone () of the bearing () in order to form a first pivot zone () and a second clearance zone () that are juxtaposed, connected to each other by a rounded connection. 1. A method for manufacturing a pivot bearing for pivoting of a timepiece component , wherein the method comprises:boring a hole in a bearing blank along an axis intended for the pivoting of the timepiece component, the hole forming a start point of a first pivot zone of the bearing, thenlaser engraving, in the bearing blank, a second clearance zone of the bearing, juxtaposed with the start point of the first pivot zone, the second clearance zone of the bearing opening at a first face of the bearing blank, thenremoving material by, at the start point of the first pivot zone of the bearing and a boundary zone between the start point of the first pivot zone of the bearing and the second clearance zone of the bearing, so that the first pivot zone and the second clearance zone of the bearing are juxtaposed and connected to each other by a rounded connection.2. The method as claimed in claim 1 , wherein the boring of the hole comprises:obtaining a blank arranged between a first plane face ...

METHOD FOR MANUFACTURING A HOLE JEWEL

A method for manufacturing a hole jewel, including forming a precursor from a mixture of at least one powder material with a binder; pressing the precursor, with upper lower dies, to form a green body of the future hole jewel including a blind cavity having a height between a height of the green body and a height of the future hole jewel, the cavity being provided with upper and lower portions respectively including blanks of a through hole and of a functional element of the future hole jewel; sintering the green body to form a body of the future hole jewel; machining the body, including a first sub-step of shaping a top of the body, during which a height of the upper portion is configured in readiness for an opening in the through hole blank for connecting the functional element to the upper surface, and a second sub-step of shaping a base of the body to form a lower surface of the hole jewel for connecting the functional element to to the lower surface. 119-. (canceled)20. A Method for manufacturing a hole jewel , comprising the following steps:forming a precursor from a mixture of at least one powder material with a binder;pressing the precursor, with an upper die and a lower die provided with a punch, to form a green body of the future hole jewel, comprising a blind cavity having a height comprised between a height of the green body and a height of the future hole jewel, the cavity being provided with upper and lower portions respectively including blanks of a through hole and of a functional element of the future hole jewel;sintering said green body to form a body of the future hole jewel from said at least one material, andmachining the body of the future hole jewel including a first sub-step of shaping a top of said body configured to form an upper surface of said hole jewel in readiness for an opening to be made in the through hole blank to allow the functional element to be connected to said upper surface, and a second sub-step of shaping a base of the body ...

MECHANICAL COMPONENT, TIMEPIECE, MANUFACTURING METHOD OF MECHANICAL COMPONENT, AND MANUFACTURING METHOD OF TIMEPIECE

An escape wheel serving as a mechanical component includes an axle member, and an escape gear portion serving as a rotation member which has a holding portion for holding the axle member, and a rim portion having a plurality of tooth portions. The holding portion has a plurality of projection portions formed to project into a through-hole into which the axle member is inserted. An elastic portion extending from between the projection portions adjacent to each other is provided between the holding portion and the rim portion. 1. A mechanical component comprising:an axle member; anda rotation member that has a holding portion for holding the axle member, and a rim portion having a plurality of tooth portions,wherein the holding portion has a plurality of projection portions formed to project into a through-hole into which the axle member is inserted, andwherein an elastic portion extending from between the projection portions adjacent to each other is provided between the holding portion and the rim portion.2. A mechanical component comprising:an axle member; anda rotation member that has a rim portion having a plurality of tooth portions,wherein the rotation member has plurality of elastic portions which extend from the rim portion so as to hold the axle member.3. The mechanical component according to claim 1 ,wherein the elastic portion is formed of the same material as that of the rotation member.4. The mechanical component according to claim 3 ,wherein the same material contains silicon.5. The mechanical component according to claim 1 ,wherein the elastic portion is formed in an arc shape.6. The mechanical component according to claim 2 ,wherein the elastic portion has a bend portion.7. The mechanical component according to claim 4 ,wherein an oxide film is formed on a front surface of the rotation member.8. A timepiece comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a movement assembled using the mechanical component according to for any one of a ...

TOURBILLON MECHANISM

A tourbillon mechanism for a timepiece movement includes a balance mechanism, an escapement mechanism and a carriage mounted in a structure of the timepiece movement in rotation about a tourbillon axis. The balance mechanism includes a spring and a balance wheel mounted in the carriage to pivot about the tourbillon axis. The escapement mechanism includes an escape wheel with teeth and a pallet-lever including pallet-stones configured to engage the teeth, the pallet-lever being mounted in the carriage and coupled in rotation to the carriage by a pivot device. The escape wheel encircles the tourbillon axis and is attached to or integral with the structure of the timepiece movement. 1. A tourbillon mechanism for a timepiece movement , comprising a balance mechanism , an escapement mechanism and a carriage mounted in a structure of the timepiece movement in rotation about a tourbillon axis , the balance mechanism comprising a spring and a balance wheel mounted in the carriage to pivot about said tourbillon axis , the escapement mechanism comprising an escape wheel with teeth and a pallet-lever comprising pallet-stones configured to engage said teeth , the pallet-lever being mounted in the carriage and coupled in rotation to the carriage by means of a pivot device , wherein the escape wheel encircles the tourbillon axis and is attached to or integral with said structure of the timepiece movement and in that the pivot device is configured to pivot elastically and to support the pallet-lever.2. The mechanism according to claim 1 , wherein the pivot device includes one or more elastic arms connecting the pallet-lever to an anchoring area attached to claim 1 , or integral with the carriage.3. The mechanism according to claim 2 , wherein the pivot device includes a pair of said elastic arms.4. The mechanism according to claim 3 , wherein the pair of elastic arms form an essentially triangular shape with the anchoring area.5. The mechanism according to claim 1 , wherein the ...

MATERIAL OBTAINED BY COMPACTION AND DENSIFICATION OF METALLIC POWDER(S)

The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%. 1: A compacted and densified solid metallic material comprising one or more phases formed of an agglomerate of metallic powder grains , wherein:cohesion of the densified solid metallic material is provided by metallic bridges formed through surface bonds between the metallic powder grains,said densified solid metallic material has a relative density greater than or equal to 95%, andthe external surface of each of the metallic powder grains in the densified solid metallic material has an irregular random shape comprising hollows and peaks.2: The material according to claim 1 , wherein the phase or phases comprise at least one element selected from the group consisting of Ni claim 1 , Cu claim 1 , Zn claim 1 , Ti claim 1 , Al claim 1 , Fe claim 1 , Cr claim 1 , Co claim 1 , V claim 1 , Zr claim 1 , Nb claim 1 , Mo claim 1 , Pd claim 1 , Ag claim 1 , Ta claim 1 , W claim 1 , Pt claim 1 , Au and alloys thereof.3: The material according to claim 1 , wherein the grains have different sizes and wherein the grain size distribution varies from 1 to at least 4.4: The material according to claim 1 , wherein the material comprises at least two phases and wherein a difference in grain size distribution between the at least two phases is at least a factor of 4.5: The material according to claim 1 , comprising at least two phases wherein interfaces between the phases have an irregular random shape.6: The material according to claim 1 , comprising three phases wherein interfaces between the phases have an irregular random shape.7: A component comprising a compacted and densified solid metallic material comprising one or more phases formed of an agglomerate of metallic ...

Adjustment member for watches

An adjustment member for a watch including a fixed structure extending substantially perpendicularly to an axial direction, the adjustment member including a regulating member with a balance arranged to pivot about a balance axis, this balance is pivoted by magnetic pivots in a carriage, arranged to pivot about a carriage axis, and comprised in a device for annulling variations in rate in the vertical positions, formed by a tourbillon or a carrousel, comprised in the adjustment member, and the carriage carrying magnets defining the balance axis which is perpendicular or oblique to the carriage axis.

ANTI SHOCK PROTECTION FOR A RESONATOR MECHANISM WITH A ROTARY FLEXURE BEARING

A timepiece resonator mechanism includes a structure carrying, via a flexible suspension system, an anchor unit to which is suspended an inertia element oscillating about a pivot axis extending in a first direction Z, in a first rotational degree of freedom RZ, under the action of the return forces of a flexure pivot including longitudinal elastic strips each fixed to this inertia element and to this anchor unit. The flexible suspension system includes, between the anchor unit and a first intermediate mass directly or indirectly fixed to the structure, a transverse translation table with a flexure bearing and including transverse strips or transverse flexible shafts which are rectilinear and extend in this second direction X orthogonal to the first direction Z and symmetrically around a transverse axis crossing this pivot axis. 1. A timepiece resonator mechanism comprising:a structure and an anchor unit to which is suspended at least one inertia element arranged to oscillate with a first rotational degree of freedom RZ about a pivot axis extending in a first direction Z, said inertia element being subjected to return forces exerted by a flexure pivot comprising a plurality of substantially longitudinal elastic strips, each fixed, at a first end to said anchor unit, and at a second end to said inertia element, each said elastic strip being deformable essentially in a plane XY perpendicular to said first direction Z,wherein said anchor unit is suspended to said structure by a flexible suspension system arranged to allow said anchor unit mobility in five flexible degrees of freedom of the suspension system, which are a first translational degree of freedom in said first direction Z, a second translational degree of freedom in a second direction X orthogonal to said first direction Z, a third translational degree of freedom in a third direction Y orthogonal to said second direction X and to said first direction Z, a second rotational degree of freedom RX about an axis ...

SHOCK ABSORBING DEVICE WITH ANGULAR LOCKING

A shock absorbing device including a spring ring able to adopt a mounting position and an attachment position respectively with respect to the support of the shock absorbing device. This spring ring includes, on the external periphery thereof, tabs which engage with a peripheral shoulder of the support of the shock absorbing device provided with recesses which outnumber the tabs. In the attachment position, only some of the tabs are disposed under the peripheral shoulder of the support, the remaining tabs, including locking tabs, respectively housed in locking recesses, of the support. In the attachment position, at least one locking tab housed in a locking recess is surrounded by tabs positioned under the peripheral shoulder. 1. A shock absorbing device for an arbor PO of a wheel set of a micromechanical device , said shock absorbing device comprising:a pivot module,a support provided with a housing accommodating the pivot module, the support being surmounted by a peripheral shoulder extending from a rim of the housing towards the centre of the support, said peripheral shoulder comprising a plurality of recesses opening onto the housing with at least one of said recesses forming a so-called locking recess,a spring ring able to adopt respectively a so-called mounting position and a so-called attachment position with respect to the support, said spring ring being arranged between the peripheral shoulder and the pivot module in order to exert an elastic force on said pivot module when the spring ring is in the attachment position, said spring ring being provided on the outer periphery thereof with a plurality of tabs with at least one of said tabs forming a so-called locking tab, the plurality of tabs extending radially away from the centre of the support and giving spring ring an outer diameter which exceeds the inner diameter of the peripheral shoulder, the plurality of tabs cooperating with the peripheral shoulder during the mounting and bayonet attachment of the ...

BEARING INCLUDING FIRST AND SECOND FUNCTIONAL ELEMENTS ON TWO DISTINCT FACES

The invention relates to a bearing comprising a sintered ceramic body traversed by a hole. According to the invention, the body includes a top surface and a bottom surface each of which includes a functional element communicating with said hole.

MAGNETIC DEVICE FOR CENTRING A SHAFT IN A CLOCKWORK MOVEMENT

A magnetic device for centring a shaft on a predetermined axis in a clockwork movement includes at least one first magnetic bearing provided with a magnet to exert an attractive force on a first ferromagnetic end pivot of the shaft. The first magnetic bearing includes a central part made of soft ferromagnetic material mounted between the magnet and the first end pivot of the shaft. The central part is positioned centrally in a washer made of non-magnetic material so as to centre the magnetic field flux generated by the permanent magnet through the central part in order to magnetically attract the first end pivot of the shaft on the predetermined axis. The diameter of the central part can be identical to, or to % less than, or to % greater than, the diameter of the first end pivot. 1. A magnetic device for centring a shaft on a predetermined axis in a clockwork movement , the device comprising at least one first magnetic bearing including a first magnet , which is intended to exert an attractive force on a first end pivot , made of ferromagnetic material , of the shaft ,wherein the first magnetic bearing comprises at least one first central part made of ferromagnetic material mounted between the first magnet and the first end pivot of the shaft, this first central part being positioned centrally in a first washer or bush made of non-magnetic material in such a way as to centre the magnetic field flux generated by the first magnet through the first central part in order to magnetically attract the first end pivot of the shaft on the predetermined axis,wherein the first magnetic bearing also comprises a first balance-pivot endstone, which is mounted between the first central part and the first end pivot of the shaft, andwherein the first central part is glued or driven into a central opening in the first washer or bush, and wherein the first washer or bush, together with the first central part, are in direct contact with the first magnet and the first balance-pivot ...

TIMEPIECE COMPONENT BASED ON PHOTOSTRUCTURABLE GLASS

A substrate for forming timepiece components includes a first part based on photostructurable glass and at least a second part based on at least one second material. One surface of the first part is made integral with a surface of the second part so as to form a one-piece timepiece component. 1. A substrate comprising:a first wafer based on photostructurable glass, the first wafer including a plurality of first parts that are identically shaped and identically oriented, the first parts formed by etching the first wafer and the first parts are connected to the first wafer by bridges after the etching; anda second wafer based on at least one second material, the second wafer including a plurality of second parts that are identically shaped and identically oriented, the second parts formed by etching the second wafer and the second parts are connected to the second wafer by bridges after the etching,wherein the first wafer with the etched first parts and the second wafer with the etched second parts are joined to adjoin only along a single surface, andwherein, once the first wafer and the second wafer are joined, one surface of each of the first parts is made integral with a surface of each of the second parts thereby forming a plurality of the one-piece timepiece components attached to the first wafer and the second wafer.2. The substrate according to claim 1 , wherein the at least one second material is silicon-based and includes single crystal silicon claim 1 , doped single crystal silicon claim 1 , polycrystalline silicon claim 1 , doped polycrystalline silicon claim 1 , porous silicon claim 1 , silicon oxide claim 1 , quartz claim 1 , silica claim 1 , silicon nitride or silicon carbide.3. The substrate according to claim 1 , wherein the at least one second material is ceramic-based and includes photostructurable glass claim 1 , borosilicate claim 1 , aluminosilicate claim 1 , quartz glass claim 1 , zerodur claim 1 , single crystal corundum claim 1 , ...

COMPONENT FOR A TIMEPIECE MOVEMENT

A pivot arbor for a timepiece movement including at least one pivot made of a non-magnetic metal material at at least one of its ends in order to limit its sensitivity to magnetic fields. The non-magnetic metal material is a non-magnetic light metal or a non-magnetic alloy of the light metal, and at least the external surface of the pivot is coated with an anodic oxide layer of the material, obtained by anodic growth. 1. A pivot arbor for a timepiece movement comprising at least one pivot made of a non-magnetic metal material , at at least one of the ends thereof , to limit the sensitivity thereof to magnetic fields , wherein said non-magnetic metal material is a non-magnetic light metal or a non-magnetic alloy of said light metal , and wherein at least the external surface of said pivot is coated with an anodic oxide layer of said material.2. The pivot arbor according to claim 1 , wherein the arbor is made of a non-magnetic metal material claim 1 , said non-magnetic metal material being a non-magnetic light metal or a non-magnetic alloy of said light metal in order to limit the sensitivity thereof to magnetic fields claim 1 , and wherein the external surface thereof is coated with an anodic oxide layer of said material.3. The pivot arbor according to claim 1 , wherein the non-magnetic metal material is chosen from the group consisting of aluminium claim 1 , titanium claim 1 , magnesium and their non-magnetic alloys.4. The pivot arbor according to claim 1 , wherein the non-magnetic metal material has a hardness of less than 250 HV.5. The pivot arbor according to claim 1 , wherein the anodic oxide layer has a thickness comprised between 2 μm and 50 μm.6. The pivot arbor according to claim 5 , wherein the anodic oxide layer has a thickness comprised between 10 μm and 30 μm.7. The pivot arbor according to claim 1 , wherein said anodic oxide layer has a hardness greater than 300 HV.8. The pivot arbor according to claim 7 , wherein said anodic oxide layer has a hardness ...

SHOCK-PROOF SYSTEM WITH SIMPLIFIED ASSEMBLY FOR TIMEPIECE

A shock-absorber bearing for a staff of a moving part of a timepiece, the bearing including: a support including a housing configured to receive a pivot module configured to cooperate with the staff; an elastic mechanism configured to exert at least one axial force on the pivot module to retain the pivot module in its housing, the pivot module and the housing having a geometry of revolution defined to have freedom of angular orientation, one relative to the other; and a fixing mechanism for fixing the elastic mechanism. 113-. (canceled)14. A shock-absorber bearing for a staff of a moving part of a timepiece , the bearing comprising:a support including a housing configured to receive a pivot module configured to cooperate with the staff;elastic means configured to exert at least one axial force on the pivot module to retain the pivot module in its housing, the pivot module and the housing having a geometry of revolution defined to have freedom of angular orientation, one relative to the other;fixing means for fixing the elastic means to the support;wherein at least the elastic means has a geometry of revolution defined to have freedom of angular orientation relative to the pivot module and to the housing, and the fixing means is configured to fix the elastic means to the support whatever an angular orientation of the elastic means relative to the pivot module and to the housing, allowing the bearing to be mounted vertically from top to down by placing elements of the bearing one on the other.15. The shock-absorber bearing according to claim 14 , wherein the support claim 14 , the housing claim 14 , the pivot module claim 14 , and the elastic means each have a defined geometry to have freedom of angular orientation relative to each other.16. The shock-absorber bearing according to claim 14 , wherein the fixing means is a material linkage between the support and the elastic means.17. The shock-absorber bearing according to claim 15 , wherein the fixing means is a ...

DEVICE FOR SECURING AND ADJUSTING A BEARING, ESPECIALLY FOR TIMEPIECES

Disclosed is a device for securing and adjusting a bearing in an orifice in a bridge or a plate of a timepiece. It includes a first bearing screw defining a crimping opening of such a bearing and including an external thread, a second screw, so-called locking screw, defining an internal bore and including an external thread and a socket defining a tubular housing extending following a longitudinal axis, the tubular housing including a first tapped section, adapted to screw the first screw, and a second tapped section, adapted to screw the second screw. Advantageously, the external threads of the first and second screws and the corresponding sections of the socket have respective screwing pitches in opposite directions. Also disclosed is a method for securing and adjusting a bearing in an orifice provided for that purpose in a bridge or a plate of a timepiece thanks to such a device. 11. Device () for securing and adjusting a bearing (P) in an orifice provided for that purpose in a bridge or a plate of a timepiece , comprising:{'b': 2', '24', '1', '2', '1', '1', '1', '1', '1', '1, 'a. A first screw (), so-called bearing screw, defining an support opening () of such a bearing (P) having a diameter d, said first screw () comprising an external thread (F) having an external diameter df larger than d and a length L, measured perpendicularly to said diameters d, df;'}{'b': 3', '33', '2', '1', '3', '2', '2', '2', '1', '1', '2', '2', '2, 'b. A second screw (), so-called locking screw, defining an internal bore () of diameter d smaller or equal to d, said second screw () comprising an external thread F having an external diameter df larger than diameters d, d, df and a length L, measured perpendicularly to said diameters d, df; and'}{'b': 4', '41', '41', '1', '2', '2', '3', '3', '2', '3, 'c. A socket () defining a tubular housing () extending following a longitudinal axis (A-A′), said tubular housing () comprising a first tapped section (S), adapted to screw the first screw ...

Facetted jewel bearings

The invention provides bearing systems characterized by single point contact with each jewel segment and a spring-loaded assembly with protection from radial and thrust forces. An important feature of jewel bearings of the invention is that they are self-lubricating, i.e., no oil or grease lubricants are needed. This can be a major advantage in medical and precision equipment. A secondary important feature is the reduced friction and effective heat-dissipation due to the unique design of the invention with significant reduction in contact surfaces and friction, which significantly prolong the lifespan of the bearings. Another advantage of the present invention is the substantial reduction in audible noise due to the unique design. Furthermore, the invention allows the use of relatively low cost synthetic jewel segments in bearings.

NON-DISMANTLABLE SHOCK-PROOF SYSTEM FOR TIMEPIECE

A shock-absorber bearing for a staff of a moving part of a timepiece, the bearing including a support including a housing configured to receive a pivot module configured to cooperate with the staff, and an elastic mechanism configured to exert at least one axial force on the pivot module to retain the module in its housing. 111-. (canceled)12. A shock-absorber bearing for a staff of a moving part of a timepiece , the bearing comprising:a support including a housing configured to receive a pivot module configured to cooperate with the staff;elastic means configured to exert at least one axial force on the pivot module to retain the module in its housing;wherein the elastic means comprises an annular spring and is fixed to the support permanently by a material linkage between the elastic means and the support, the annular spring comprising at least two specific attachment zones for fixing the annular spring to the support.13. A shock-absorber bearing according to claim 12 , wherein the elastic means is fixed on the support by welding or soldering.14. A shock-absorber bearing according to claim 12 , wherein the elastic means is fixed on the support by glueing.15. A shock-absorber bearing according to claim 12 , wherein the elastic means comprises an annular spring including at least one internal radial extension extending towards the central axis of the annular spring.16. A shock-absorber bearing according to claim 12 , wherein the annular spring comprises at least two external radial extensions that extend towards an outside of the annular spring and serve as specific attachment zones.17. A shock-absorber bearing according to claim 15 , wherein the annular spring comprises three external radial extensions and three internal radial extensions.18. A clock movement comprising a bottom plate and at least one bridge claim 12 , the bottom plate comprising an orifice claim 12 , wherein claim 12 , into the orifice of the bottom plate claim 12 , a shock-absorber bearing ...

Suspended-hammer timepiece striking mechanism

Timepiece striking mechanism, including a fixed structure supporting at least one gong or radiant element and a mobile hammer in a plane under the action of an activation mobile component controlling the pallet of the hammer (3) and the release thereof for the percussion of the gong, and including, for the suspension of the hammer, at least one planar flexible guide between the structure and the hammer (3) to allow movements of the hammer solely on the plane, forming the sole mechanical link between the structure and the hammer, and, more particularly, for the execution of a striking mechanism, the striking mechanism (drives the activation mobile component, and has same carry out a winding cycle during which it supplies constant quantity of energy to the flexible guide while driving the hammer before releasing same for the execution of the striking mechanism by percussion of the gong during letting down.

Flexural pivot

A timekeeping pivot linking a first part with a second part, pivotably about a pivot axis, the pivot comprising a blade having an edge, rigidly connected to one of the first or second parts and the median plane of which passing via the edge defines a blade plane, and a bearing area rigidly connected to the other of the first and second parts and against which the edge of the blade bears, the contact points of the blade and of the bearing area being substantially situated on the pivot axis, the first and second parts being rigidly connected in translation in the direction orthogonal to the pivot axis contained in the blade plane.

Timepiece movement including an analogue display

The timepiece movement is provided with an analogue display device for an item of information whose value varies periodically or intermittently, this analogue display device including an indicator for said information provided with a toothing and a mechanism for the periodic or intermittent driving of the indicator, this mechanism comprising a rotating wheel set whose pinion, in a meshing relationship with the toothing, is formed of two pins which are diametrically opposite relative to the rotational axis of the rotating wheel set, these two pins being configured to alternately penetrate successive hollows in the toothing and to form a self-locking system when the timepiece movement is subjected to shocks. Each of the two pins has, in a general plane of the toothing perpendicular to the axis of rotation of the rotating wheel set, a transverse profile having a first outer portion substantially in the arc of a circle centred on the axis of rotation.

BEARING, PARTICULARLY A SHOCK ABSORBER, AND ROTARY WHEEL SET OF A TIMEPIECE MOVEMENT

A bearing for an arbor or staff of a rotary wheel set of a timepiece movement, the bearing including a bearing block provided with a housing and an endstone arranged inside the housing, the endstone having a main body provided with a cavity configured to receive a pivot of the arbor of the rotary wheel set, the pivot having the shape of a first cone having a first solid angle, the apex of the first cone being rounded with a predefined first radius of curvature in a range from 0.2 μm to 50 μm, the cavity having a second cone shape with a second solid angle, greater than the first solid angle, so that the pivot can rotate in the cavity, the apex of the second cone being rounded and having a predefined second radius of curvature. The second radius of curvature is smaller than the first radius of curvature. 1161820131422142217201617302631362928323136173028. A bearing , particularly a shock absorber , for an arbor or staff () of a rotary wheel set of a timepiece movement , for example a balance staff , the bearing ( , ) comprising a bearing block () provided with a housing () and an endstone () arranged inside the housing () , the endstone () comprising a main body provided with a cavity configured to receive a pivot ( , ) of the arbor () of the rotary wheel set , the pivot ( , ) having the shape of a first cone () having a first solid angle ( , ) , the apex () of the first cone being rounded with a predefined first radius of curvature comprised in a range from 0.2 μm to 50 μm , the cavity having the shape of a second cone () having a second solid angle () greater than the first solid angle ( , ) , such that the pivot ( , ) can rotate in the cavity , the apex of the second cone () being rounded and having a predefined second radius of curvature , characterized in that the second radius of curvature is smaller than the first radius of curvature.2. The bearing according to claim 1 , characterized in that the second radius of curvature is less than 40 μm.3. The bearing ...

PROCESS FOR MANUFACTURING A HYBRID TIMEPIECE COMPONENT

Process for manufacturing a hybrid timepiece component, wherein the following steps are comprised: 1. A process for manufacturing a hybrid timepiece component , comprising:structuring at least one wafer of a first micromachinable material so as to form at least one through-opening within the wafer, the structured wafer being intended to form a first part of the hybrid timepiece component;depositing a metal by electroforming, so that the metal extends through the through-opening and over the two upper and lower faces of the wafer as a single piece resulting from one and the same electroforming step, the electroformed metal being intended to form a second part of the hybrid timepiece component.2. The process for manufacturing an hybrid timepiece component as claimed in claim 1 , comprising:providing a substrate, at least an upper surface of which is conductive;forming a first resist mold on top of the upper surface of the substrate, the first resist mold comprising at least one material-free zone on top of the substrate;structuring at least one wafer of a first micromachinable material and depositing the at least one wafer on top of the first resist mold or conversely positioning at least one wafer of a first micromachinable material on top of the first resist mold and structuring the at least one wafer so as to form at least one through-opening of the at least one wafer at least partially superposed on a material-free zone of the first resist mold;forming a second resist mold on top of the wafer, comprising material-free zones that extend from the upper surface of the substrate to the upper surface of the stack;depositing a metal or an alloy by electroforming so that the metal extends from the upper surface of the substrate to the top of the wafer;releasing the hybrid timepiece component by the removal of the substrate.3. The process for manufacturing a hybrid timepiece component as claimed in claim 2 , additionally comprising:forming at least one through-opening in ...

TIMEPIECE RESONATOR MECHANISM

Watch or movement including a timepiece resonator movement including two RCC flexural pivots mounted in series about an intermediate rotary support and having the same virtual pivot axis, each comprising two straight flexible strips of the same length, whose clamping points opposite to this pivot axis are at the same distance with respect to this axis, and which define linear directions, forming angles, in pairs, with this virtual pivot axis, whose value expressed in degrees is comprised between: 1. A timepiece resonator mechanism comprising a first support with a first anchor and a second anchor to which is attached a flexural pivot mechanism , which defines a virtual pivot axis about which rotatably pivots a pivoting weight , and which includes at least one front RCC flexural pivot and one back RCC flexural pivot , mounted in series and head-to-tail relative to each other about said virtual pivot axis ,said front RCC flexural pivot including, between said first support and an intermediate rotary support, two straight flexible front strips of the same front length LA between the clamping points thereof, defining two linear front directions which intersect at said virtual pivot axis and which define, with said virtual pivot axis, a front angle, and wherein the respective anchors of said two straight flexible front strips farthest from said virtual pivot axis are both at the same front distance DA from said virtual pivot axis,and said back RCC flexural pivot including, between said intermediate rotary support, which includes a third anchor and a fourth anchor, and said pivoting weight, two straight flexible back strips of the same back length LP between the clamping points thereof, defining two linear back directions which intersect at said virtual pivot axis and which define, with said virtual pivot axis, a back angle, and wherein the respective anchors of said two straight flexible back strips farthest from said virtual pivot axis are both at the same back distance ...

MECHANICAL COMPONENT, MECHANISM MODULE, MOVEMENT, AND TIMEPIECE

A mechanical component, a mechanism module, a movement, and a timepiece superior in lubricating oil retaining performance are to be provided. A mechanical component includes: a first component having a first surface region; a second component having a second surface region on which the first surface region can slide; and an oil retaining film formed on at least one of the first surface region and the second surface region and more lipophilic than the region. 1. A mechanical component comprising:a first component having a first surface region;a second component having a second surface region on which the first surface region can slide; andan oil retaining film formed on at least one of the first surface region and the second surface region and more lipophilic than the region.2. The mechanical component according to claim 1 , wherein there is formed an oil repellent film that is less lipophilic than the region on the region adjacent to the oil retaining film on at least one of the first component and the second component.5. The mechanical component according to claim 1 , wherein the first component is a shaft body rotatable around an axis; andthe second component is a bearing rotatably supporting the shaft body.6. The mechanical component according to claim 1 , wherein there is formed in at least one of the first surface region and the second surface region a retaining portion capable of retaining lubricating oil.7. The mechanical component according to claim 6 , wherein the retaining portion is a recess formed in the surface region.8. A mechanism module equipped with a mechanical component as claimed in .9. A movement equipped with a mechanical component as claimed in .10. A timepiece equipped with a movement as claimed in . This application claims priority under 35 U.S.C. § 119 to Japanese Patent Application Nos. 2017-023161 filed on Feb. 10, 2017 and 2017-214949 filed on Nov. 7, 2017, the entire content of which are hereby incorporated by reference.The present ...

MECHANICAL HOROLOGICAL BEARING PROVIDED WITH A DAMPING

A mechanical horological bearing () intended to be arranged on a mechanical timepiece movement (), the bearing () including, coaxial around a common rotation axis (D), at least one internal frame () and at least one external frame () forming a running track (), as well as a plurality of wheels () sliding or rolling in the running track (), during a relative movement between the internal frame () and the external frame () that guides them and wherein at least one of the internal frame () and external frame () is a dynamic frame, at least one structural part of the bearing () being produced from an elastic metal material with a high damping capacity, the damping factor of which is greater than 10%, preferably greater than 30%. 11101414515201213204145154145151. A mechanical horological bearing () intended to be arranged on a mechanical timepiece movement () , the bearing () including , coaxial around a common rotation axis (D) , at least one internal frame ( , ) and at least one external frame ( , ) forming a running track () , as well as a plurality of wheels ( , ) sliding or rolling in the running track () , during a relative movement between said internal frame ( , ) and said external frame ( , ) that guides them and wherein at least one of said internal frame ( , ) and external frame ( , ) is a dynamic frame , wherein at least one structural part of the bearing () is produced from an elastic metal material with a high damping capacity , the damping factor of which is greater than 10% , preferably greater than 30.21. The mechanical bearing () according to claim 1 , wherein the metal material has a tensile strength greater than 100 MPa claim 1 , preferably greater than 400 MPa claim 1 , or even 600 MPa.31. The mechanical bearing () according to claim 1 , wherein the material is to be chosen from the following list:an alloy of manganese at at least 80%, and copper,an alloy of copper at at least 80%, preferably at 82%, and of aluminum and nickel, preferably at 12% and ...

SHOCK RESISTANT BEARING FOR A TIMEPIECE

Shock resistant bearing for a timepiece including an elastic structure and a central portion carried by the elastic structure, the central portion having a blind hole intended to receive a pivot of a rotating wheel set of the timepiece. The elastic structure and the central portion are formed by a single-piece part formed of single crystal quartz and the blind hole has at least partially the shape of a truncated or non-truncated trigonal pyramid against which the end of the pivot abuts. The invention also concerns a method of manufacturing a shock resistant bearing of this type wherein the single-piece wafer is machined in an anisotropic etching bath for single crystal quartz. Preferably, two masks are respectively arranged on the two sides of the wafer to simultaneously etch the quartz from both sides. 112-. (canceled)13. A method for manufacturing a shock resistant bearing including an elastic structure and a central portion carried by said elastic structure , said central portion having a blind hole intended to receive a pivot of a rotating wheel set of the timepiece , the elastic structure and the central portion being formed by one single-piece part , said method being characterized by the following steps:A) Making a single crystal quartz wafer whose two main faces, respectively the first and second faces, are substantially oriented perpendicularly to the optical axis of the crystalline structure of the single crystal quartz;B) Forming a first mask on the first face of the single crystal quartz wafer, said first mask being structured by photolithography so as to define on the first face the contours of said elastic structure and of said blind hole;C) Machining said elastic structure and said blind hole in said single crystal quartz wafer by placing said wafer in a chemical etching bath adapted for an anisotropic etch of single crystal quartz which greatly facilitates an etch along said optical axis, said first mask being selected to resist the etch of said ...

PIVOTING ASSEMBLY FOR A TIMEPIECE

The invention relates to a pivoting assembly comprising an arbor rotatably mounted between two bearings, a member mounted between a shoulder of the arbor and a resilient washer, at least one of the two bearings comprising a limit stop which is arranged to enter into direct contact with the resilient washer in order to restrict the relative movement between the arbor and its bearings. 1. A pivoting assembly comprising an arbor rotatably mounted between two bearings , a member mounted on the arbor with the aid of at least one resilient washer , wherein at least one of the two bearings comprises a limit stop which is arranged to enter into direct contact with the at least one resilient washer in order to restrict the relative movement between the arbor and the two bearings.2. The pivoting assembly according to claim 1 , wherein the member is mounted between a shoulder of the arbor and the at least one resilient washer.3. The pivoting assembly according to claim 1 , wherein the member is mounted on the arbor between two resilient washers.4. The pivoting assembly according to claim 1 , wherein the member is a balance spring.5. The pivoting assembly according to claim 4 , wherein a balance and a roller are also mounted on the arbor.6. The pivoting assembly according to claim 1 , wherein the member is a wheel.7. The pivoting assembly according to claim 6 , wherein a pinion is also mounted on the arbor.8. The pivoting assembly according to claim 1 , wherein the member is a pallets or a detent.9. The pivoting assembly according to claim 1 , wherein the member is a mainspring.10. The pivoting assembly according to claim 1 , wherein the member is a balance.11. The pivoting assembly according to claim 1 , wherein the two bearings each include at least one jewel arranged to receive a pivot formed on each end of the arbor.12. The pivoting assembly according to claim 11 , wherein each at least one jewel is resiliently mounted in the associated bearing in order to dampen shocks ...

Horological rivet

A rivet ( 1 ), in particular a horological rivet, comprising: a longitudinal axis ( 10 ); a first part ( 20 ), in particular a head ( 50 ); a second part ( 30 ), in particular a body ( 60 ), the first part comprising a first handling element ( 1 a ) that is able to mechanically stress the first part, and the second part comprising a second handling element ( 1 b ) that is able to mechanically stress the second part, the first and second handling elements being such that they make it possible to apply mechanical actions to the first and the second part, respectively, that cause the first and second parts of the rivet to break, notably to shear.

REDUCED-FRICTION SHAFT SUPPORT BEARING

A bearing includes a shaft which pivots in the bearing. The shaft includes, at at least one end thereof, a shoulder via which the shaft is in contact with an opposite surface of the bearing. The shoulder is extended by a pivot engaged in a hole provided in the bearing. The opposite surface of contact of the bearing includes at least one hollow in order to reduce the surface of contact between the shoulder of the shaft and the bearing. Application is made to the production of a bearing for a shaft of a horology movement. 16-. (canceled)7. A bearing for micromechanics , in which pivots a shaft , the shaft comprising , at at least one end thereof , a shoulder via which the shaft is in contact with an opposite surface of the bearing , the shoulder being extended by a pivot engaged in a hole provided in the bearing , wherein the surface of contact facing the bearing comprises at least one hollow in order to reduce the surface of contact between the shoulder of the shaft and the bearing.8. The bearing according to claim 7 , wherein the hollow is present in the form of a ring centred around the hole of the bearing.9. The bearing according to claim 7 , wherein the surface of contact between the shoulder of the shaft and the bearing is provided with a plurality of hollows distributed around the hole of the bearing.10. The bearing according to claim 9 , wherein the hollows are evenly spaced apart and arranged in a concentric manner around the hole of the bearing.11. The bearing according to claim 7 , wherein it is made from a monocrystalline material chosen from the group containing ruby claim 7 , corundum claim 7 , spinel or cubic zirconia claim 7 , the hollow being machined by material ablation using a laser beam claim 7 , by spark erosion or by grinding.12. The bearing according to claim 7 , wherein it is made from a sintered material chosen from the group containing sintered corundum claim 7 , sintered ruby claim 7 , sintered ceramics claim 7 , sintered alumina claim 7 , ...

GUIDE BEARING FOR A TIMEPIECE BALANCE PIVOT

A bearing () for guiding a timepiece shaft about an axis, notably a guide bearing for a portion of a timepiece resonator shaft, comprising at least one pressing element () arranged in such a way as to constantly exert an action on the shaft, radially or substantially radially with respect to the axis. 1. A bearing for guiding a portion of a timepiece resonator shaft about an axis , comprising at least one pressing element arranged so as to constantly exert an action on the shaft , radially or substantially radially with respect to the axis.2. The bearing as claimed in claim 1 , comprising at least one return element collaborating with the at least one pressing element.3. The bearing as claimed in claim 2 , wherein the at least one return element and the at least one pressing element are made as one piece.4. The bearing as claimed in claim 1 , comprising at least two pressing elements for pressing on the shaft about the axis.5. The bearing as claimed in claim 1 , comprising at least two return elements and at least as many pressing elements.6. The bearing as claimed in claim 1 , wherein each of the at least one pressing element comprises at least one planar or concave or convex pressing surface.7. The bearing as claimed in claim 1 , comprising at least one blade claim 1 , the blade or each of the blades constituting:at least one pressing element for pressing on the shaft, anda return element for returning the at least one pressing element to press on the shaft.8. The bearing as claimed in claim 7 , wherein:the blade or blades extend parallel or substantially parallel to the pressing elements in the vicinity of the pressing elements and/or orthogonally or substantially orthogonally with respect to the axis in the vicinity of the pressing elements, or wherein:the blade or blades extend at least substantially perpendicular to the pressing elements in the vicinity of the pressing elements and/or orthogonally or substantially orthogonally with respect to the axis in the ...

COMPONENT FOR TIMEPIECE, MOVEMENT, AND TIMEPIECE

There are provided a component for a timepiece, a movement, and a timepiece having excellent lubricating oil holding performance. There is provided a component for a timepiece including a sliding surface having a surface tension of 10 to 35 mN/m. It is preferable that when lubricating oil having a surface tension of 25 to 35 mN/m is applied to the sliding surface, an interfacial tension between the sliding surface and the lubricating oil is 0 to 7 mN/m. 1. A component for a timepiece , comprising a sliding surface having a surface tension of 10 to 35 mN/m.2. The component for a timepiece according to claim 1 , wherein claim 1 , when a lubricating oil having a surface tension of 25 to 35 mN/m is applied to the sliding surface claim 1 , an interfacial tension between the sliding surface and the lubricating oil is 0 to 7 mN/m.3. A movement comprising the component for a timepiece according to .4. A timepiece comprising the movement according to . This application claims priority under 35 U.S.C. §119 to Japanese Patent Application No. 2018-043194 filed on Mar. 9, 2018, the entire content of which is hereby incorporated by reference.The present invention relates to a component for a timepiece, a movement, and a timepiece.A driving force is applied continuously or intermittently to a component for a timepiece used in a timepiece, such as an escape wheel & pinion and a pallet fork. Therefore, in order to reduce friction due to sliding during rotation and the like, it is required to hold lubricating oil at a sliding location of the component for a timepiece.JP-A-2001-288452 (Patent Reference 1) discloses a technology of forming an oil repellent film which is out of a region where the lubricating oil is held to hold the lubricating oil in the region.However, since the component for a timepiece is small, it was difficult to form the oil repellent film only in a specific region, and it was not easy to employ the technology described in Patent Reference 1.Here, Japanese Patent ...

SELF-LUBRICATING COMPOSITE COATING

A self-lubricating solid composite coating configured for an application to timepiece mechanisms, including particles of graphene and/or graphene oxide distributed in a metal matrix. 113-. (canceled)14: A timepiece mechanism comprising:a timepiece comprising a solid self-lubricating composite coating, comprising particles of graphene and/or graphene oxide distributed in a metal matrix, and the graphene and/or graphene oxide is in a form of fibers, particles or aggregates, wherein the aggregates are formed from solid elements.15: The timepiece according to claim 14 , wherein the graphene oxide is reduced graphene oxide.16: The timepiece according to claim 14 , wherein the graphene and/or graphene oxide is bound to metal ions from a pure metal or a metal alloy.17: The timepiece according to claim 16 , wherein the solid coating has undergone a thermal curing treatment.18: The timepiece according to claim 16 , wherein the coating has a polished or lapped surface.19: The timepiece according to claim 16 , wherein the coating is covered with a 5 to 100 nm film of gold.20: The timepiece according to claim 16 , wherein thickness of the coating ranges between 0.2 microns and 20 microns.21: The timepiece according to claim 20 , wherein the thickness of the coating ranges between 0.5 microns and 2 microns.22: The timepiece according to claim 16 , wherein an attachment layer is deposited prior to formation of the coating.23: The timepiece according to claim 16 , wherein the coating is deposited electrochemically or chemically claim 16 , wherein constituents of the coating are in suspension in a bath.24: The timepiece according to claim 16 , further comprising particles chosen from the group of aluminium claim 16 , diamond claim 16 , boron nitride claim 16 , tungsten carbide claim 16 , silicon in pure form claim 16 , carbide claim 16 , nitride or oxide claim 16 , including a mixture of these.25: The timepiece according to claim 16 , further comprising particles chosen from the ...

BIMATERIAL ANTI-SHOCK SYSTEM FOR TIMEPIECES

A shock absorber bearing for an arbor of a timepiece wheel. The arbor includes a pivot-shank, the bearing includes a support including a housing arranged to receive a suspended pivot mechanism, and the pivot mechanism is arranged to absorb, at least in part, any shocks experienced by the timepiece wheel. 110-. (canceled)11. A shock absorber bearing for an arbor of a timepiece mobile part , the arbor including a pivot-shank , the bearing comprising:a support including a housing arranged to receive a suspended pivot means, the pivot means is arranged to absorb, at least in part, any shocks experienced by the timepiece wheel,wherein the pivot means is made of a metallic material and includes a recess in which is inserted an insert made of synthetic material and with which the pivot-shank cooperates.12. The shock absorber bearing according to claim 11 , wherein the insert is made of a polymer material.13. The shock absorber bearing according to claim 12 , wherein the insert material is a loaded material.14. The shock absorber bearing according to claim 12 , wherein the polymer of the insert is chosen from the group of polyoxymethylene claim 12 , polyamide claim 12 , polyetheretherketone claim 12 , and polyphenylene sulphide.15. The shock absorber bearing according to claim 13 , wherein the polymer of the insert is chosen from the group of polyoxymethylene claim 13 , polyamide claim 13 , polyetheretherketone claim 13 , and polyphenylene sulphide.16. The shock absorber bearing according to claim 11 , wherein the pivot means is a disc including an annular portion claim 11 , a central portion claim 11 , and resilient arms connecting the central portion to the annular portion claim 11 , the central portion including a recess for insertion of an insert claim 11 , with which the pivot can cooperate for free rotation.17. The shock absorber bearing according to claim 16 , wherein the pivot means includes three resilient arms angularly offset at an angle of 120°.18. The shock ...

PROCESS FOR MANUFACTURING A STRENGTHENED TIMEPIECE COMPONENT AND CORRESPONDING TIMEPIECE COMPONENT AND TIMEPIECE

The manufacturing process produces a part (), from a micromachinable material, the part () forming a blank of the timepiece component and comprising at least one surface having an initial roughness. It comprises a step of mechanical strengthening treatment of the part in an etching fluid intended to decrease the roughness of said surface. For example, a substrate of said micromachinable material is provided; the substrate is at least partially covered with a protective coating containing at least one aperture; the substrate is etched through the aperture in the protective coating and an etched surface is thus obtained; the mechanical strengthening treatment is applied to said etched surface through the aperture in the protective coating; and then the protective coating is removed. The etching fluid may be a plasma or a liquid chemical etchant. 1. A process for manufacturing a timepiece component , comprising:producing a part forming a blank of the timepiece component from a micromachinable material, said part comprising at least one surface having an initial roughness, andperforming a mechanical strengthening treatment of the part by an etching fluid intended to decrease the roughness of said surface.2. The process as claimed in claim 1 , wherein the mechanical strengthening treatment of the part by an etching fluid is of isotropic type.3. The process as claimed in claim 1 , comprising:providing a substrate of said micromachinable material;at least partially covering the substrate with a protective coating containing at least one aperture;etching the substrate through the aperture in the protective coating and thus obtaining an etched surface;applying the mechanical strengthening treatment to said etched surface through the aperture in the protective coating; andthen removing the protective coating.4. The process as claimed claim 1 , wherein the mechanical strengthening treatment is a plasma treatment or a treatment with a liquid chemical etchant.5. The process as ...

PROCESS FOR MANUFACTURING A HYBRID TIMEPIECE COMPONENT

Process for manufacturing a hybrid timepiece component, comprising structuring at least one wafer () of a first micromachinable material so as to form at least one through-opening () within the wafer (), said structured wafer () being intended to form a first part () of the hybrid timepiece component; and depositing a metal by electroforming, so that the metal extends through the through-opening () and over the two upper and lower faces of the wafer () as a single piece resulting from one and the same electroforming step, the electroformed metal being intended to form a second part () of the hybrid timepiece component. 112-. (canceled)13. A hybrid timepiece component comprising:a first part made of a first micromachinable material;a second part made of metal material different from the first material, the second part extending continuously as a single piece over an upper surface of the first part, through a through-opening of the first part then over a lower surface of the first part, so that the first part is framed on either side by the second part, so as to ensure the mechanical holding between the two parts.14. The hybrid timepiece component as claimed in claim 13 , wherein the second part extends through the through-opening and over two upper and lower surfaces of the first part as a single piece resulting from electroforming.15. The hybrid timepiece component as claimed in claim 13 , comprising a cylindrical through-opening within the second part so as to form a metal insert capable of receiving a rotating shaft or for driving in the hybrid timepiece component.16. The hybrid timepiece component as claimed in claim 15 , comprising a rotating shaft arranged in the through-opening within the second part.17. The hybrid timepiece component as claimed in claim 15 , comprising another part on which the hybrid timepiece component is driven by the cylindrical through-opening within the second part.18. The hybrid timepiece component as claimed in claim 13 , which is:a ...

ANTISHOCK DEVICE AND TIMEPIECE MECHANICAL OSCILLATOR WITH FLEXIBLE GUIDANCE HAVING SUCH AN ANTISHOCK DEVICE

An antishock device intended to protect from shocks a timepiece mechanical oscillator with flexure guiding, the antishock device including a visco-elastic element and a rigid stop, each being configured in such a manner as to cooperate with a portion of the oscillator. The visco-elastic element is configured to be deformed elastically if the oscillator is subjected, in the event of a shock, to an acceleration between G and G NIHS, preferably between G and G NIHS. The portion cooperating with the rigid stop if the portion is subjected to an acceleration beyond at least G NIHS, preferably at least G. A timepiece mechanical oscillator includes a balance, a suspension with flexure guiding and elastically restoring the balance into a plane of oscillation and provided with shock protection, the oscillator including at least one antishock device according to the invention. 1. Antishock device intended to protect from shocks a timepiece mechanical oscillator with flexure guiding , the antishock device comprising:a visco-elastic element and a rigid stop, each being configured in such a manner as to cooperate with a portion of the oscillator;the visco-elastic element being configured in such a manner as to be deformed if the oscillator is subjected, in the event of a shock, to an acceleration between 20 G and 1000 G NIHS, preferably between 50 G and 500 G NIHS;said portion cooperating with the rigid stop if the portion is subjected to an acceleration beyond at least 1000 G NIHS, preferably at least 500 G NIHS;and in which there is no contact between said portion of the oscillator and the antishock device for an acceleration less than 50 G NIHS.2. Antishock device according to claim 1 ,in which the stiffness of the visco-elastic element is adjusted in such a manner that the portion of the oscillator cooperates with the visco-elastic element if the oscillator is subjected to an acceleration between 20 G and 1000 G NIHS, preferably between 50 G and 500 G NIHS, and cooperates ...

Timepiece component based on photostructurable glass

The invention relates to a timepiece component including a first part based on photostructurable glass and at least a second part based on at least one second material. According to the invention, one surface of the first part is made integral with a surface of the second part so as to form a one-piece timepiece component.

ANTI-SHOCK DEVICE FOR A TIMEPIECE MOVEMENT

The timepiece movement comprises a pivoting element, a bearing for a pivot of this pivoting element and an anti-shock device associated with this bearing and including a resilient member arranged to exert a restoring force on at least one endstone. The anti-shock device further includes a magnetic system comprising two magnets having opposite polarities and a highly magnetically permeable element arranged between these two magnets and secured to one of them, the two magnets being respectively fixed to a support of the anti-shock device and to the resilient member and arranged to produce between them, in association with the highly magnetically permeable element, an overall force of magnetic attraction on a first section of a possible distance of displacement for the endstone in the event of a shock and an overall force of magnetic repulsion on a second section of this distance of displacement corresponding to greater distances of separation than those of the first section. 1. A timepiece movement comprising a pivoting element , a bearing in which is arranged a pivot of this pivoting element and an anti-shock device associated with the bearing , the anti-shock device comprising a resilient member arranged to be able to exert a pressure on at least one endstone forming a stop for said pivot in the direction of the axis of rotation of the pivoting element , this anti-shock device being arranged to be able to generate , through the endstone , a restoring force on said pivot when the pivot presses , in the event of a shock , against the endstone; wherein the anti-shock device further includes a magnetic system comprising two magnets , and a highly magnetically permeable element arranged between these two magnets and integral with one of the magnets , the first and second magnets being respectively secured to a support of the anti-shock device and to the resilient member , in order to present between them a relative movement over a certain relative distance when the ...

ANTI SHOCK PROTECTION FOR A RESONATOR MECHANISM WITH ROTARY FLEXURE BEARING

A timepiece resonator mechanism including a structure carrying, via a flexible suspension system, an anchor unit to which is suspended an inertia element oscillating with a first rotational degree of freedom RZ, under the action of return forces exerted by a flexure pivot including first elastic strips each fixed to the inertia element and to the anchor unit, the flexible suspension system being arranged to allow the anchor unit some mobility in every degree of freedom except the first rotational degree of freedom RZ wherein only the inertia element can move to avoid any disturbance to its oscillation, and the stiffness of the suspension system in the first rotational degree of freedom RZ is very considerably higher than the stiffness of the flexure pivot in this same rotational degree of freedom RZ. 1. A timepiece resonator mechanism comprising a structure and an anchor unit to which is suspended at least one inertia element arranged to oscillate with a first rotational degree of freedom RZ about a pivot axis extending in a first direction Z , said inertia element being subjected to return forces exerted by a flexure pivot comprising a plurality of first elastic strips , each fixed at a first end to said anchor unit and at a second end to said inertia element , each said elastic strip being essentially deformable in a plane XY perpendicular to said first direction Z , said resonator mechanism including axial stop means including at least a first axial stop and/or a second axial stop to limit the translational travel of said inertia element at least in said first direction Z , said axial stop means being arranged to abuttingly engage with said inertia element in order to protect said first strips at least against axial impacts in said first direction Z , wherein said anchor unit is suspended to said structure by a flexible suspension system arranged to allow said anchor unit mobility in five flexible degrees of freedom of the suspension system , which are a first ...

METHOD FOR PRODUCING A SURFACE OF REVOLUTION OF A CLOCK OR WATCH COMPONENT

Method for producing a surface of revolution of a clock or watch component comprising a step of machining, with a femtosecond laser beam, a first surface of the clock or watch component so as to obtain a second surface, in particular so as to obtain a second surface whose roughness Ra is less than 100 nm, or less than 70 nm, and then a tribofinishing step applied to the second surface so as to obtain the surface of revolution. 1. A method for producing a surface of revolution of a clock or watch component , the method comprising:machining, with a femtosecond laser beam, a first surface of the clock or watch component so as to obtain a second surface, and thenperforming tribofinishing applied to the second surface so as to obtain the surface of revolution.2. The method as claimed in claim 1 , wherein the clock or watch component is an arbor.3. The method as claimed in claim 1 , wherein the surface of revolution is a surface of a pivot of the clock or watch component.4. The method as claimed in claim 1 , wherein the surface of revolution is made of ceramic.5. The method as claimed in claim 4 , wherein the ceramic is a zirconia claim 4 , an yttriated zirconia claim 4 , a monocrystalline alumina or an alumina-zirconia combination.6. The method as claimed in claim 1 , wherein the machining step comprises a turning phase.7. The method as claimed in claim 1 , wherein the laser beam is an infrared laser beam claim 1 , or a green laser beam claim 1 , or an ultraviolet laser beam claim 1 , or a blue laser beam.8. The method as claimed in claim 1 , wherein the laser beam has an energy in a range of from 0.001 mJ to 2 mJ.9. The method as claimed in claim 1 , wherein the laser beam scans the first surface following a helical trajectory.10. The method as claimed in claim 1 , wherein the laser beam has a diameter in a range of from 5 μm to 100 μm.11. The method as claimed in claim 1 , wherein the tribofinishing takes less than 20 hours.12. The method as claimed in claim 1 , ...

MECHANICAL CONNECTION DEVICE

A mechanical connection device, in particular a mechanical connection device for a timepiece or a mechanical transmission device for a timepiece, includes a first part having a first area with at least a first micro-cavity; and a second part having a second area with at least a second micro-cavity, the first and second areas being in contact with one another in a mechanical connection configuration. 1. A mechanical connection device comprising:a first part comprising a first area with at least a first micro-cavity; anda second part comprising a second area with at least a second micro-cavity,the first and second areas being in contact with one another in a mechanical connection configuration.2. The device as claimed in claim 1 , wherein the first micro-cavities are micro-grooves and/or the second micro-cavities are micro-grooves.3. The device as claimed in claim 1 , wherein the first micro-cavities have a depth of less than 100 μm claim 1 , and/or the second micro-cavities have a depth of less than 100 μm claim 1 , and/or the first and second micro-cavities have the same depth or substantially the same depth claim 1 , and/or the first micro-cavities have a width of less than 200 μm claim 1 , and/or the second micro-cavities have a width of less than 200 μm claim 1 , and/or the first and second micro-cavities have the same width or substantially the same width.4. The device as claimed in claim 1 , wherein the micro-cavities have flanks forming an angle of between 90° and 160° from bottoms of the first micro-cavities claim 1 , and/or the second micro-cavities have flanks forming an angle of between 90° and 160° from the-bottoms of the second micro-cavities.5. The device as claimed in claim 1 , wherein the first micro-cavities and the second micro-cavities are oriented perpendicularly claim 1 , or substantially perpendicularly claim 1 , to forces transmitted from the first part to the second part at a contact between the first and second parts claim 1 , or the first ...

Timepiece shaft

A timepiece shaft ( 1 ), especially a balance shaft ( 1 ), comprising a first functional portion ( 2 a; 2 b ) including at least one part ( 221 a, 221 b ) of a pivot-shank ( 22 a; 22 b ) and/or at least one part ( 211 a, 211 b ) of a pivot ( 21 a, 21 b ), the first functional portion being made of ceramic and a first outer diameter (D 1 ) of the first functional portion being less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm

Magnetic device for pivoting an arbor in a timepiece movement

The device for pivoting an arbor about a determined axis includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot, made of magnetic material, of the arbor. Further, the bearing includes a magnetic flux centring structure arranged between the magnet and the pivot, and a support for the centring structure. This centring structure includes a peripheral portion and a central portion resiliently connected to the peripheral portion by at least one connecting element, the central portion being formed of a highly magnetically permeable material and having smaller dimensions than those of the magnet. The peripheral portion is rigidly force fitted to the support so that the central portion is centred on the pivot axis.

MAGNETIC DEVICE FOR PIVOTING AN ARBOR OF A ROTATING MEMBER IN A TIMEPIECE MOVEMENT

The device for pivoting an arbor of a rotating member, on a determined pivot axis, inside a timepiece movement includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot made of magnetic material, of the arbor, and an endstone arranged between the magnet and the pivot, the endstone being formed of a material having a hardness greater than 500 HV and a friction coefficient less than or substantially equal to 0.1 with the material of which the pivot is made. The material forming the endstone has a high magnetic permeability and the endstone has, in cross-section to the pivot axis, smaller dimensions than those of the magnet, said endstone being arranged in the timepiece movement to be centred on the determined pivot axis. 1. A timepiece assembly including the arbor of a rotating member and a device for pivoting said arbor about a determined pivot axis inside a timepiece movement , the pivoting device including at least one magnetic bearing including a magnet , which exerts a force of attraction on a pivot made of magnetic material , of the arbor , and an endstone arranged between the magnet and the pivot , the endstone being formed of a material having a hardness greater than 500 HV and a friction coefficient less than or equal to 0.1 with the material of which the pivot is made; wherein the material forming the endstone has a high magnetic permeability , wherein said endstone has , in cross-section to the pivot axis , smaller dimensions than those of the magnet , and wherein the endstone is arranged in the timepiece movement to be centred on the determined pivot axis.2. The timepiece assembly according to claim 1 , wherein the magnetic bearing includes a pole structure which includes the endstone and a frame arranged around the endstone claim 1 , the endstone being maintained centred on the determined pivot axis by means of the frame fixed to a support of the timepiece movement.3. The timepiece assembly according to claim ...

Timepiece component and method of manufacturing timepiece component

By configuring a timepiece component to include an intermediate film provided on at least a portion of a surface of a base material formed by using a nonconductive first material as a main component and to include a buffer film stacked on the intermediate film and mainly composed of a second material having a tenacity higher than that of the first material, the timepiece component may be manufactured with high precision, the weight thereof may be reduced, and even when the base material is formed by using a brittle material such as silicon, the timepiece component becomes resistant to breakage and capable of exhibiting high strength when an impact is externally applied.

MECHANICAL TIMEPIECE OSCILLATOR WHICH IS ISOCHRONOUS IN ALL POSITIONS

A mechanical oscillator with an inertia element oscillating about a virtual pivot axis of fixed position with respect to a fixed base to which it is suspended by several flexible connections, each including a deformable compass-like member including elastic strips forming a first arm fixed to a base and a second arm fixed to the inertia element, joined at a reversal edge defining a apex of the deformable compass-like member, wherein in an unstressed rest state of the oscillator, the projection of the apex is on a first side of the pivot axis, opposite to a second side where the ends of the first and second arms are projected. 1100232004221004256557688222697944489111077101001078294. Mechanical timepiece oscillator () including at least one base () arranged to be fixed to a bottom plate () or a bridge of a timepiece movement () , and at least one inertia element () arranged to oscillate about a virtual pivot axis (D) of fixed position with respect to said at least one base () or of fixed position with respect to said bases () when said oscillator () has several , in a plane of pivoting (P) perpendicular to said virtual pivot axis (D) , each said inertia element () being suspended to at least one said base () by several flexible connections () each including at least one elastic strip () , and said flexible connections () together defining said virtual pivot axis(D) , characterized in that at least one said flexible connection () includes at least one deformable compass-like member () comprising a said elastic strip () forming a first arm () arranged , at a first end () , to be fixed to a said base () or integral with a said base () , angularly movable , in projection onto said plane of pivoting (P) , with respect to another said elastic strip () forming a second arm () of said deformable compass-like member () which , at a second end () , is arranged to be fixed to said inertial element () , or integral with said inertia element () , said first arm () and said second ...

MECHANISM FOR ADJUSTING AN AVERAGE SPEED IN A TIMEPIECE MOVEMENT AND TIMEPIECE MOVEMENT

A mechanism for adjusting an average speed in a timepiece movement comprises an escapement wheel and a mechanical oscillator, in which a plurality of blades, which are resiliently flexible in an oscillation plane, support and return a balance in such a way that this balance oscillates at an angle in the oscillation plane. A pallet fork comprises two rigid pallets which are rigidly connected to the balance and are arranged to co-operate alternately with a toothing of the escapement wheel when the balance oscillates at an angle. 1. An adjusting mechanism for adjusting an average speed in a timepiece movement , comprising:an escapement wheel; a balance; and', 'a plurality of resiliently flexible blades, which are resiliently flexible in an oscillation plane, and which support and return the balance in such a way that the balance oscillates at an angle in the oscillation plane; and, 'a mechanical oscillator, the mechanical oscillator comprising,'}a pallet fork comprising two rigid pallets which are rigidly connected to the balance and are arranged to co-operate alternately with a toothing of the escapement wheel when the balance oscillates at an angle.2. The adjusting mechanism according to claim 1 , wherein each pallet includes an upstream side forming a resting surface to block successively the teeth of the toothing toward a downstream counter to a driving motor torque of the escapement wheel claim 1 , each pallet including an end surface forming an impulse surface to receive successively impulses from the toothing.3. The adjusting mechanism according to claim 2 , wherein each resting surface curves toward the other resting surface.4. The adjusting mechanism according to claim 3 , wherein each resting surface curves toward the other resting surface in a way so as to be able to slide on a tooth of the toothing claim 3 , during an angular oscillation of the balance claim 3 , while not causing or substantially not causing rotation movement of the escapement wheel.5. The ...

TIMEPIECE OSCILLATOR WITH FLEXURE BEARINGS HAVING A LONG ANGULAR STROKE

A mechanical timepiece oscillator including, between a first element and a second inertial element, more than two distinct flexible strips returning the inertial element to a rest position in an oscillation plane, wherein the projections of these strips cross each other, at a point, through which passes the axis of pivoting of the second solid inertial element, and the height to thickness aspect ratio is less than 10 for each strip. 1. A mechanical timepiece oscillator comprising , between a first rigid support element and a second solid inertial element , a flexure bearing including more than two first flexible strip which support said second solid inertial element and are arranged to return said second solid inertial element to a rest position , wherein said second solid inertial element is arranged to oscillate angularly in an oscillation plane about said rest position , said two first flexible strips do not touch each other and their projections onto said oscillation plane cross , in the rest position , at a crossing point , in proximity to which or through which passes the axis of rotation of said second solid inertial element perpendicularly to said oscillation plane , and the embedding points of said first flexible strips in said first rigid support element and said second solid inertial element define two strip directions parallel to said oscillation plane , each said strip has an aspect ratio RA=H/E , where H is the height of said strip perpendicularly both to the oscillation plane and to the elongation of said strip along said length L , and wherein E is the thickness of said strip in the oscillation plane and perpendicularly to the elongation of said strip along said length L , wherein said aspect ratio RA=H/E is less than 10 for each said strip.2. The mechanical oscillator according to claim 1 , wherein said oscillator includes a first number N1 of said first said strips claim 1 , called primary strips claim 1 , extending in a first strip direction claim ...

Shockproof bearing for balance spring of mechanical horological movement of wrist watch, has element with hole including olive cut such that shape of hole provides contact point between bearing and cylindrical part at minimum distance

The bearing (8) has an element with a hole (t) including an offset olive cut (o) such that the shape of the hole provides a contact point between the bearing and a cylindrical part of a pivot (p) of a staff balance (5) at a minimum distance (n) from a flat and perpendicular port (k) of the staff balance, where value of the minimum distance is 40 micrometers. The pivot is extended such that another element e.g. decorative element, is fixed at an end of the staff balance.

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

The present invention provides a process for producing a saturated aliphatic hydrocarbon prepared using an α-olefin as a raw material and represented by the general formula (1), including the steps of: (I) producing a vinylidene olefin by dimerizing the α-olefin in the presence of a metallocene complex catalyst; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process, a bearing oil consisting of the lubricant composition, and making use of the same, a bearing and gyral equipment. The saturated aliphatic hydrocarbon compounds produced by the process of the present invention have low-temperature fluidity, exhibiting low evaporativity, and excellent in thermal stability and oxidation stability. Thus, the saturated aliphatic hydrocarbon compounds are suitable for use as, for example, a base oil of lubricant composition for hydraulic pressure, turbine, working machine, bearing, gear, metal-working, etc.

Stem/winder assembly of a waterproof watch case and a watch case containing such a node

FIELD: watch industry. SUBSTANCE: present invention relates to a control element, such as a stem/winder assembly of a waterproof watch case, in particular of a diving watch. Essence: assembly (9) stem/winder of the waterproof case (1) of the watch contains a tubular winder (11) inserted into the cylindrical hole (12) of the middle part (2) of the watch case, and a crown (stem) containing the first part partially connected to the winder and the second control part. The first part contains an annular contact surface (21) inclined at a given angle of less than 90° relative to the longitudinal central axis of the stem/winder assembly, starting from the first part of the winder in the outward direction of the second part of the winder. In the initial position, the first part of the winder is in contact with the annular receiving surface (22) of the middle part of the mating mold at the outlet end of the tubular hole (12). The winder additionally contains a thrust washer (20) exposed to the thrust section (31) of the first part of the winder and in contact with the stem, while it is designed and made to rest in the annular groove (30) of the middle part between the tubular hole (12) and the annular receiving surface. EFFECT: ensuring the operability of the waterproof case of the watch under the influence of high pressure when immersed into deep water. 16 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 764 398 C1 (51) МПК G04B 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G04B 1/00 (2021.08) (21)(22) Заявка: 2021118244, 23.06.2021 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ОМЕГА СА (CH) Дата регистрации: 17.01.2022 26.06.2020 CH 00779/20 (45) Опубликовано: 17.01.2022 Бюл. № 2 2 7 6 4 3 9 8 R U (54) УЗЕЛ ВАЛИК - ЗАВОДНАЯ ГОЛОВКА ВОДОНЕПРОНИЦАЕМОГО КОРПУСА ЧАСОВ И КОРПУС ЧАСОВ, СОДЕРЖАЩИЙ ТАКОЙ УЗЕЛ (57) Реферат: Использование: настоящее изобретение первая часть заводной ...

微型机械钟表部件

一种微型机械钟表部件是以板的形式在硅衬底中切出。部件的切边包括用作接触表面的部分，该接触表面设置成抵靠钟表中的另一微型机械部件的相应接触区滑动。切边具有包括交替的肋(21a)和槽(23a)的肋状表面，肋和槽是直的并且分别包含在平行于板的平面内。此外，肋和槽在切边上形成具有第一间距(25a)以及至少一个第二间距(27a)的间隔图案，在第一间距中，肋彼此分开的间隔等于第一距离，并且在第二间距中，肋之间的间隔等于第二距离，第二距离不同于第一距离。

Lubricating oil

본 발명은 저점도이더라도 증기압이 낮고, 인화의 위험성도 없고, 또한 내열성이 우수하며, 종래의 탄화수소계 윤활유에 비해 아무런 손색이 없는 마찰특성을 갖고, 고온하 및 진공하 등의 매우 엄한 조건하에서도 장기간 사용할 수 있는 윤활유를 제공하기 위한 것이다. 본 발명은 기유로서, 양이온과 음이온으로 구성되고, 이온 농도가 1 mol/dm 3 이상인 이온성 액체를 포함하는 윤활유에 관한 것이다. The present invention has a low vapor pressure, low risk of ignition and excellent heat resistance even at low viscosity, and has no friction inferior to conventional hydrocarbon lubricants, even under very severe conditions such as high temperature and vacuum. It is to provide a lubricant that can be used for a long time. The present invention relates to a lubricating oil comprising, as a base oil, an ionic liquid composed of cations and anions and having an ion concentration of 1 mol / dm 3 or more.

Редуктор электронно-механических наружных часов с шаговым двигателем

Изобретение может быть использовано в часовой промьшшенности при производстве кварцевых наручных часов . Цель изобретени  - повышение технологичности редуктора и упрощение его сборки при одновременном уменьшении габаритных размеров. Устройство содержит три концентричных вала: часовой 22, минутный 12 н секундный вал секундного триба 7, св занных один с другим и с валом 2 двигател  3 через зубчатые пары триб - колесо и имеющих различную скорость вращени . В центральном отверстии платины 38 запрессована опорна  втулка 42, служаща  подшипником минутного вала 12, свободно пропущенного через отверстие в ней. Выступающа  из платины часть опорной втулки 42 введена во внутреннюю расточку фланца 11, на цилиндрическую поверхность которого с нат гом насажена разрезна  втулка 49. За счет осевого перемещени  этой втулки можно мен ть величину прогиба наход щегос  с ней во взаимодействии центрального фрикционного колеса 10. В отверсти  54 платины 38 запрессованы резьбовые колонки 56, цилиндрические выступы 57 которых служат дл  координировани  на их торцах моста 33 относительно платины 38. Числа резьбовых колонок выбираетс  не менее двух дл  обеспечени  требуемой точности координировани . 2 з.п. ф-лы, 3 ил. i (Л С N и Чм IS to Од СО СО to

The method for the clock and watch component that manufacture is strengthened and corresponding clock and watch component and clock and watch

本发明涉及制造强化的钟表组件的方法和相应的钟表组件和钟表。该制造方法由可微加工材料来制造零件(10)，所述零件(10)形成钟表组件的坯料并且包括至少一个具有初始粗糙度的表面。所述方法包括在旨在降低所述表面的粗糙度的蚀刻流体中对零件进行机械强化处理的步骤。例如，提供所述可微加工材料的基材；基材被包含至少一个开口的保护涂层至少部分覆盖；通过保护涂层中的开口来蚀刻基材并且因此获得蚀刻表面；通过保护涂层中的开口对所述蚀刻表面施加机械强化处理；并且然后去除保护涂层。蚀刻流体可以是等离子体或液体化学蚀刻剂。

Impact-resistant bearing for chronometer

Ударостойкий подшипник для хронометра включает в себя упругую структуру (10) и центральный участок (14), опирающийся на указанную упругую структуру, на указанном центральном участке имеется глухое отверстие (16A), предназначенное для приема цапфы системы вращающихся шестерен хронометра. Упругая структура и центральный участок образованы цельной деталью (6), образованной монокристаллическим кварцем, а глухое отверстие имеет, по меньшей мере частично, форму усеченной или неусеченной трехгранной пирамиды, в которую упирается встык торец цапфы. Изобретение также относится к способу изготовления ударостойкого подшипника подобного типа, в котором цельная пластина обрабатывается в ванне для анизотропного травления монокристаллического кварца. Предпочтительно на две стороны пластины помещаются две соответствующие маски (20, 26) для одновременного травления кварца с обеих сторон. 3 н. и 12 з.п. ф-лы, 10 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G04B 31/004 (13) 2 603 236 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014128595/28, 07.12.2012 (24) Дата начала отсчета срока действия патента: 07.12.2012 (72) Автор(ы): ХЕССЛЕР М. Тьери (CH) (73) Патентообладатель(и): ТЕ СВОТЧ ГРУП РИСЕРЧ ЭНД ДИВЕЛОПМЕНТ ЛТД (CH) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.02.2016 Бюл. № 4 R U 12.12.2011 EP 11193058.2 (45) Опубликовано: 27.11.2016 Бюл. № 33 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.07.2014 2 6 0 3 2 3 6 (56) Список документов, цитированных в отчете о поиске: CH700496 B1, 15.09.2010. CN102033484 A, 27.04.2011. DE1638497 U, 15.05.1952. DE2612407 A1, 06.10.1977. US4378957 A, 05.04.1983. (86) Заявка PCT: 2 6 0 3 2 3 6 R U C 2 C 2 EP 2012/005050 (07.12.2012) (87) Публикация заявки PCT: WO 2013/087173 (20.06.2013) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) УДАРОСТОЙКИЙ ПОДШИПНИК ДЛЯ ХРОНОМЕТРА (57) Реферат: Ударостойкий ...

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

A process for producing any of saturated aliphatic hydrocarbon compounds of the general formula: (1), from an α-olefin as a raw material through the steps of (I) dimerizing an α-olefin in the presence of a metallocene complex catalyst to thereby obtain a vinylidene olefin; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process; a bearing oil consisting of the lubricant composition; and making use of the same, a bearing or rotary motion equipment. The saturated aliphatic hydrocarbon compounds produced by the above process have low-temperature fluidity, exhibiting low volatility, and excel in thermal stability and oxidation stability. Thus, the saturated aliphatic hydrocarbon compounds are suitable for use as, for example, a base oil of lubricant composition for hydraulic equipment, turbine, machine tool, bearing, gear, metal machining, etc.

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

The present invention provides a process for producing a saturated aliphatic hydrocarbon prepared using an α-olefin as a raw material and represented by the general formula (1), including the steps of: (I) producing a vinylidene olefin by dimerizing the α-olefin in the presence of a metallocene complex catalyst; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process, a bearing oil consisting of the lubricant composition, and making use of the same, a bearing and gyral equipment. The saturated aliphatic hydrocarbon compounds produced by the process of the present invention have low-temperature fluidity, exhibiting low evaporativity, and excellent in thermal stability and oxidation stability. Thus, the saturated aliphatic hydrocarbon compounds are suitable for use as, for example, a base oil of lubricant composition for hydraulic pressure, turbine, working machine, bearing, gear, metal-working, etc.

Process for producing saturated aliphatic hydrocarbon compound, and lubricant composition

The present invention provides a process for producing a saturated aliphatic hydrocarbon prepared using an α-olefin as a raw material and represented by the general formula (1), including the steps of: (I) producing a vinylidene olefin by dimerizing the α-olefin in the presence of a metallocene complex catalyst; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process, a bearing oil consisting of the lubricant composition, and making use of the same, a bearing and gyral equipment. The saturated aliphatic hydrocarbon compounds produced by the process of the present invention have low-temperature fluidity, exhibiting low evaporativity, and excellent in thermal stability and oxidation stability. Thus, the saturated aliphatic hydrocarbon compounds are suitable for use as, for example, a base oil of lubricant composition for hydraulic pressure, turbine, working machine, bearing, gear, metal-working, etc.