EP2977833B1 - Accurate positioning of a timepiece bridge - Google Patents

Accurate positioning of a timepiece bridge Download PDF

Info

Publication number
EP2977833B1
EP2977833B1 EP14177878.7A EP14177878A EP2977833B1 EP 2977833 B1 EP2977833 B1 EP 2977833B1 EP 14177878 A EP14177878 A EP 14177878A EP 2977833 B1 EP2977833 B1 EP 2977833B1
Authority
EP
European Patent Office
Prior art keywords
pin
plate
bar
assembly
bridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14177878.7A
Other languages
German (de)
French (fr)
Other versions
EP2977833A1 (en
Inventor
Dave Mangin
Sylvain Maréchal
Benoît Junod
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
Original Assignee
Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP14177878.7A priority Critical patent/EP2977833B1/en
Priority to CN201510428774.9A priority patent/CN105319944B/en
Publication of EP2977833A1 publication Critical patent/EP2977833A1/en
Priority to HK16109417.8A priority patent/HK1221998A1/en
Application granted granted Critical
Publication of EP2977833B1 publication Critical patent/EP2977833B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B29/00—Frameworks
    • G04B29/04—Connecting or supporting parts

Definitions

  • the invention relates to a dismountable watchmaking assembly comprising at least one bridge arranged to be positioned on a plate by a first centering pin comprising a first peripheral surface and a second alignment pin, which comprises said assembly and which are arranged to cooperating both with said plate and said bridge, where at least said plate or said bridge comprises, for the relative centering of said bridge with said plate, a female centering implantation which comprises two facets which form a ridge dihedron parallel to a engagement direction, and said first female implantation being arranged to receive said first pin resting on said two facets by a first portion of said first peripheral surface, which first peripheral surface comprises a second portion distinct from said first portion, and wherein said assembly comprises first catch-up means of j eu which are arranged to press a surface of said first pin bearing on said two first facets.
  • the invention also relates to an exhaust mechanism comprising at least one such removable assembly.
  • the invention also relates to a watch movement comprising at least one such removable assembly and / or such an exhaust mechanism.
  • the invention also relates to a timepiece comprising at least one such removable assembly.
  • the invention relates to the field of timepieces, and more particularly watch mechanisms. It finds a particular application for the assembly of the components of the mechanisms whose assembly, positioning and alignment accuracies directly affect the chronometric performances, and especially in the case of an escape mechanism.
  • the invention relates to the positioning of bridges in a mechanism or a watch movement.
  • a bridge is positioned by two pins and held fixed by one or more screws.
  • the repeatability of the position thus obtained may be insufficient to ensure the proper operation of the mechanism.
  • escape wheel and anchor where, for the chronometric stability of the balance, the repeatability of the position may be insufficient to ensure the proper operation of the mechanism.
  • the variation of the position of the anchor modifies the center distances and the center line, which directly modifies the safety, the efficiency and the exhaust delay.
  • the document EP 2 458 454 A1 in the name of ETA SA describes a positioning device between a bridge and a plate, comprising a rotationally symmetrical centering pin, the plate comprising, for the centering of the bridge on the plate, a female centering implantation, extending in an insertion direction and having facets in a polygonal or star section orthogonal to the insertion direction, and the female implantation being arranged to receive, bearing on at least three of the facets, the centering pin fixed on the bridge.
  • This polygonal section is circumscribed to an inscribed circle of diameter less than the diameter of a cylindrical centering bearing that includes the centering pin.
  • the document CH 705 087 A2 in the name of HUBLOT SA describes a timepiece comprising a pivoting mobile, provided with a pivot shaft mounted between bearings integral with a plate and a bridge connected by a fixing screw.
  • a distance adjusting member between the bridge and the plate is provided with a threaded portion screwed into the bridge, and comprises a wheel.
  • the document DE 12 75 474 B TISSOT HORLOGERIE describes a distance adjustment column between a plate and a bridge each having an oblong groove, orthogonal to each other, and the column comprising, on the one hand, a soleplate housed under the plate on the side. opposite the bridge, and on the other hand a split end for its elastic support to the bridge.
  • the document EP 1 860 511 A1 in the name of CHRISTOPHE CLARET SA describes a bridge pivoted elastically with respect to a plate around a first axis.
  • the bridge supports a regulating member, an escapement and a part of a finishing gear train. Another part of the finishing gear is mounted fixed relative to the plate.
  • a wheel of the work train, whose pivot axis is coincident with the first axis, provides the connection between the two parts.
  • the bridge comprises a damping system comprising an elastic unit placed at one end of a shaft.
  • the invention proposes to define a bridge assembly on platinum which ensures the positioning accuracy, the alignment position, and which allows disassembly by disengagement and repositioning perfectly reproducible after retreading positioning elements.
  • the invention relates to a dismountable watchmaking assembly according to claim 1, wherein the play catching means are internal to the pin.
  • the invention also relates to an escapement mechanism comprising at least one such removable assembly, characterized in that said bridge is an anchor bridge or a pendulum bridge or a gear bridge.
  • the invention also relates to a watch movement comprising at least one such removable assembly and / or such an exhaust mechanism.
  • the invention also relates to a timepiece comprising at least one such removable assembly and / or such an escape mechanism and / or such a movement.
  • the invention proposes to define, for a mechanism or a clockwork movement, a bridge assembly on a platinum which guarantees the positioning accuracy, the alignment position, and which allows disassembly by disengagement and repositioning perfectly reproducible after retreading of positioning elements.
  • the invention relates to a dismountable watchmaking assembly 1 comprising at least one bridge 2, a plate 3, and for each such bridge, a first centering pin 6 and a second alignment pin 11.
  • Such a bridge 2 is arranged to be positioned on the plate 3 by a first centering pin 6 having a first peripheral surface 60, and a second alignment pin 11, which are arranged to cooperate with both the plate 3 and the bridge 2.
  • At least the plate 3 or the bridge 2 comprises, for the relative centering of the bridge 2 with the plate 3, a first centering female implantation 4 which comprises two first facets 5 which form a dihedron 50 of parallel ridge at an engagement direction D, and the first female implantation 4 being arranged to receive the first pin 6 bearing on the first two facets 5 by a first portion 61 of its first peripheral surface 60.
  • this set 1 comprises first means 21, which are arranged to exert, when the first pin 6 is in the bearing position on the first two facets 5, a direct or indirect force on the first pin 6.
  • these first game-catching means 20 are arranged to exert, when the first pin 6 is in a bearing position on the first two facets 5, in addition to pressing on these first facets 5, a thrust force on only a second portion 62 of the first peripheral surface 60, which is distinct from the first portion 61 resting on the dihedron 50, as visible on the figure 2 .
  • the pin is triangulated: free support in two distinct areas of first part 61 of its first peripheral surface 60 on the first two facets 5, and plating force exerted on this second part 62.
  • the first game-catching means 20 exert this plating thrust force in a direction contained in this bisecting plane and parallel, as the case may be, to the plate 3 or to the bridge 2.
  • these first play-catching means 20 exert this plating thrust force in the vicinity of the bisecting plane of the dihedron 50.
  • the dihedron 50 may be of greater rigidity than that of the first pin 6, for example in the case of a bridge 2 made of silicon or the like, or conversely of inferior rigidity to that of the pin , especially in the usual case of a bridge 2 stamped brass or sheet steel combined with a pin hardened steel. Or even stiffness equal to that of the pin, when both are made of the same material.
  • the first game-catching means 20 are internal to the first pin 6, which is a pin elastic or a cotter pin, and are arranged to press the second portion 62 on a thrust surface 51, which comprises the first centering female implantation 4, and which defines with these two first facets 5 a chamber.
  • a chamber is of substantially triangular section.
  • each slot constitutes such first play catching means 20.
  • the carrier wall of the first facets 5, which defines the centering accuracy advantageously has, but not necessarily, a rigidity that is greater than that of the first pin 6.
  • the first pin 6 is a cotter pin as visible in particular on the Figures 2 to 4
  • the plate 3 or the bridge 2 which carries the first female centering implantation 4 comprises mechanical indexing means 45 and / or visual for the indexing of a first slot 65 particular of the first pin 6 for angular positioning correct of this first pin 6, as visible on the figure 8 .
  • the first slot 65 is not median, but delimits two parts of different stiffness, as visible on the figure 8 : a first part 68 more rigid, for example on two thirds of the section, carrying the first part 61 of support on the first facets 5, and a second part 69 lower for example on a third of the section and comprising the second part 62 on which exerts the thrust effort equal and opposite to the resulting support exerted on the first facets 5.
  • the envelope surface of the first peripheral surface 60 of the first pin 6 is symmetrical of revolution. This may concern both the second embodiment and the first slotted elastic pin mode, the envelope surface symmetry of revolution then concerning the free state of this pin.
  • the plate 3 comprises a first housing bore of the first pin 6, and the bridge 2 comprises the first female centering implantation 4.
  • both the plate 3 and the bridge 2 each comprise such a first female centering implantation 4; it is then necessary that the means of catching play exert efforts of different intensity on one and the other.
  • the plate 3 and the bridge 2 are held together by at least one fixing screw 90.
  • the bisecting plane of the dihedron 50 is preferably substantially parallel to the force generated by the tightening torque of the fixing screw 90 and brought back to the first facets 5, and the tightening torque C applied to the fixing screw 90 tends to reinforce the support of the first pin 6 on the first two facets 5.
  • the plate 3 or / and the bridge 2 further comprises a second alignment female implantation 8.
  • This second alignment female implantation 8 comprises at least one second plane face 81 in an alignment direction DA, and which is arranged to receive a second contact surface 110 of a second alignment pin 11 which carries respectively the bridge 2 or the plate 3.
  • the assembly 1 comprises second play-catching means 21, which are arranged to exert a thrust force on the second alignment pin 11 when it is in a bearing position on the second face plane 81.
  • the alignment direction DA of the second planar face 81 extends parallel to a plane defined by the positioning axes of the first pin 6 and the second pin 11.
  • the alignment direction DA of the second planar face 81 may, again, extend orthogonally to the bisecting plane of the dihedron 50.
  • the second alignment female implantation 8 is a rectilinear female housing with parallel faces 81, 82, aligned in an alignment direction DA perpendicular to the engagement direction D.
  • This embodiment is mainly related to a machining convenience in tool machining case, because only one second plane face 81 is sufficient for the implementation of the invention.
  • the second play catching means 21 are internal to the second alignment pin 11 which is an elastic pin or a cotter pin, and are arranged to press the second contact surface 110. on the second flat face 81.
  • the second alignment pin 11 is a cotter pin, as visible on the figure 3
  • the plate 3 or the bridge 2 which carries the second alignment female implantation 8 includes mechanical indexing means 85 and / or visual for the indexing of a second slot 115 particular of the second alignment pin 11 for correct angular positioning, to take advantage of the perfectly elastic deformation of the pin on which effort must be applied, as visible on the figure 10 .
  • the bearing wall of the second planar face 81 which defines the alignment accuracy, advantageously but not necessarily has a stiffness which is greater than that of the second pin 11.
  • the envelope surface of the second peripheral surface of the second alignment pin 11 is symmetrical of revolution. This may concern both the second embodiment and the first slotted elastic pin mode, the envelope surface symmetry of revolution then concerning the free state of this pin.
  • the plate 3 comprises a second housing bore of the second alignment pin 11, and the bridge 2 comprises the second alignment female implantation 8.
  • both the plate 3 and the bridge 2 each comprise such a second female alignment implantation 8, but, as above in the case of the first centering pin 6, it is necessary that the the force applied on the platinum side is different from that applied on the bridge side.
  • the plate 3 and the bridge 2 are held assembled to each other by at least one fastening screw 90, and the tightening torque C applied to the fastening screw 90 tends to reinforce the support of the second alignment pin 11 on the second flat face 81: no separation between the second alignment pin 11 and the flat face is caused by the screwing of the fixing screw 90.
  • the second flat face 81 is preferably substantially perpendicular to the direction of the force exerted by this second flat face 81 on the second pin 11 during the tightening of the fixing screw 90.
  • the position of the fixing screw 90 is calculated for a maximum lever arm with respect to the first facets 5 on the one hand, and the second flat face 81 on the other hand.
  • the bridge 2 is an anchor bridge or a pendulum bridge or a gear bridge.
  • the invention also relates to an escapement mechanism 100 comprising at least one such removable assembly, characterized in that said bridge is an anchor bridge or a balance bridge or a gear bridge.
  • the invention also relates to a watch movement 200 comprising at least one such removable assembly 1 and / or such an exhaust mechanism.
  • the invention also relates to a timepiece 300 comprising at least one such removable assembly 1 and / or such an escape mechanism 100 and / or such a movement 200. More particularly, this timepiece 300 is a watch.
  • the clearance of the clearance in the assembly of the bridge 2 with the pins 6 and 11 is based on a preload of the bridge 2 given by flexible parts.
  • the first pin 6 is in contact with a first-facet-shaped "V" dihedral 50 so as to remove two degrees of freedom at the bridge 2.
  • the second pin 11 is in contact with a second alignment female 8 with preferably a single useful contact face which is the second planar face 81, so as to remove the last degree of freedom to the bridge 2 (the other three degrees of freedom being eliminated by the contact plan on plane with the plate 3).
  • the placement and orientation of the female implantations are preferably made in such a way that the tightening operation of the first fixing screw 90, which generates a torque C acting on the bridge 2, does not degrade the position of the bridge 2 , and therefore the position of the pivoting component held by the bridge. For this, the flexible part must not be stressed when tightening the fixing screw 90.
  • the dimensions of the flexible parts are designed so that the minimum force on the pins 6 and 11 makes it possible to keep the bridge 2 in its operating position, even without the tightening screw or screws.
  • the product of the minimum contact force on each pin and the coefficient of friction must correspond to the product of the weight of the bridge and a safety factor. This makes it possible to manipulate the movement without risking that the component falls.
  • Embodiments are described here for the specific case of an anchor bridge, but they are generalizable to other positioning components.
  • the first embodiment with cotter pins uses the pins as a flexible part, incorporating a slot on a portion of the pin which makes part of the pin flexible.
  • the flexible portion has a thickness of between 0.05 mm and 0.1 mm and a length L of between 0.5 mm and 1 mm.
  • the figure 13 is a graph representing, on the ordinate, the driving forces of a bridge as a function of the displacement of the pin on the abscissa, for a clamping of 15 ⁇ m and for two different geometries of the flexible part.
  • the maximum stripping force (negative part) is less than 1 N which is satisfactory for easily dismounting the bridge without damaging the components (it is considered that the maximum stripping force not to be exceeded is 3 N, but for some smaller and regularly handled deck such as the anchor deck, a maximum force of less than 1 N is recommended).
  • the figure 14 is a graph representing, on the ordinate, the driving forces of a bridge depending on the abscissa of the length of the flexible part, for a clamping of 15 ⁇ m, and for different geometrical parameters.
  • Curve C3 is the minimum stripping force.
  • the effective variant L is between 0.5 mm and 0.7 mm, and the thickness of the blade between 0.05 mm and 0.1 mm. With all the geometrical parameters used in this case, the anchor breakout force is satisfactory.
  • the figure 15 is a graph showing the yoke forces of a bridge based on the abscissa of the displacement of the pin, for three different sections of the spring, in this second embodiment.
  • the curve C1 corresponds to the force for a nominal section spring, the C2 curve for a minimum section spring, and the C3 curve for a maximum section spring.
  • the maximum stripping force (negative part) is much less than 1 N, which is satisfactory for easily dismantling the bridge without damaging the components.
  • This force is also sufficient insofar as it is greater than the weight of the bridge (about 0.1 gram-force) multiplied by a safety factor (10) which gives a minimum holding force of about 0.01 N for this example (this value is dependent on the mass of the bridge).
  • the figure 16 is a graph plotting the stripping / decoupling forces of a bridge based on the abscissa of the section of the springs mounted on the bridge in this second embodiment, in a variant that is effective for a section between 0.03 mm 2 and 0.05 mm 2 .
  • the anchor bridge release force is satisfactory (greater than 0.01 N and less than 3 N).
  • the invention has important advantages.
  • the invention is also interesting for all the bridges of a watch movement or a watch mechanism, and in particular the bridges which allow the precise positioning of a component in rotation or pivoting.
  • the invention is advantageous for the bridges which make it possible to position the components of the escapement, such as escape wheel, anchor, balance wheel.
  • the present invention is also advantageous for after-sales overhauls: indeed, the watchmaker who handles the bridge provided with such a positioning system without play is then assured of assembling the anchor bridge in a position identical to the initial position.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Plates (AREA)
  • Adornments (AREA)
  • Clamps And Clips (AREA)

Description

Domaine de l'inventionField of the invention

L'invention concerne un ensemble démontable d'horlogerie comportant au moins un pont agencé pour être positionné sur une platine par une première goupille de centrage comportant une première surface périphérique et une deuxième goupille d'alignement, que comporte ledit ensemble et qui sont agencées pour coopérer à la fois avec ladite platine et ledit pont, où au moins ladite platine ou ledit pont comporte, pour le centrage relatif dudit pont avec ladite platine, une implantation femelle de centrage qui comporte deux facettes qui forment un dièdre d'arête parallèle à une direction d'engagement, et ladite première implantation femelle étant agencée pour recevoir ladite première goupille en appui sur lesdites deux facettes par une première partie de sa dite première surface périphérique, laquelle première surface périphérique comporte une deuxième partie distincte de ladite première partie, et où ledit ensemble comporte des premiers moyens de rattrapage de jeu qui sont agencés pour plaquer une surface de ladite première goupille en appui sur lesdites deux premières facettes.The invention relates to a dismountable watchmaking assembly comprising at least one bridge arranged to be positioned on a plate by a first centering pin comprising a first peripheral surface and a second alignment pin, which comprises said assembly and which are arranged to cooperating both with said plate and said bridge, where at least said plate or said bridge comprises, for the relative centering of said bridge with said plate, a female centering implantation which comprises two facets which form a ridge dihedron parallel to a engagement direction, and said first female implantation being arranged to receive said first pin resting on said two facets by a first portion of said first peripheral surface, which first peripheral surface comprises a second portion distinct from said first portion, and wherein said assembly comprises first catch-up means of j eu which are arranged to press a surface of said first pin bearing on said two first facets.

L'invention concerne encore un mécanisme d'échappement comportant au moins un tel ensemble démontable.The invention also relates to an exhaust mechanism comprising at least one such removable assembly.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble démontable ou/et un tel mécanisme d'échappement.The invention also relates to a watch movement comprising at least one such removable assembly and / or such an exhaust mechanism.

L'invention concerne encore une pièce d'horlogerie comportant au moins un tel ensemble démontable.The invention also relates to a timepiece comprising at least one such removable assembly.

L'invention concerne le domaine des pièces d'horlogerie, et plus particulièrement des mécanismes d'horlogerie. Elle trouve une application particulière pour l'assemblage des composants des mécanismes dont les précisions d'assemblage, de positionnement, d'alignement, influent directement les performances chronométriques, et tout particulièrement dans le cas d'un mécanisme d'échappement.The invention relates to the field of timepieces, and more particularly watch mechanisms. It finds a particular application for the assembly of the components of the mechanisms whose assembly, positioning and alignment accuracies directly affect the chronometric performances, and especially in the case of an escape mechanism.

Arrière-plan de l'inventionBackground of the invention

L'invention concerne le positionnement des ponts dans un mécanisme ou un mouvement horloger. Traditionnellement, un pont est positionné par deux goupilles et maintenu fixe par une ou plusieurs vis.The invention relates to the positioning of bridges in a mechanism or a watch movement. Traditionally, a bridge is positioned by two pins and held fixed by one or more screws.

Les tolérances de position et de diamètre des alésages et des goupilles (chaîne de cotation) affectent déjà la précision de positionnement des ponts, et leur coût. De plus, afin de permettre l'assemblage et le démontage du pont sur la platine, un jeu est généralement ménagé entre les goupilles et le pont, avec un diamètre de goupille légèrement inférieur à celui de l'alésage correspondant. Ce jeu cause une variation de la position des composants tenus par le pont d'un assemblage à l'autre. Or certains ponts nécessitent plusieurs opérations de montage/démontage, sur un même mouvement, afin de procéder à des réglages: dans ce cas la répétabilité de positionnement est importante.The tolerances of position and diameter of the bores and pins (dimensioning chain) already affect the positioning accuracy of the bridges, and their cost. In addition, to allow the assembly and disassembly of the bridge on the plate, a clearance is generally provided between the pins and the bridge, with a pin diameter slightly less than that of the corresponding bore. This game causes a variation of the position of the components held by the bridge from one assembly to another. But some bridges require several operations of assembly / disassembly, on the same movement, in order to make adjustments: in this case the repeatability of positioning is important.

Dans le cas des composants critiques pour la chronométrie, la répétabilité de la position ainsi obtenue peut être insuffisante pour garantir le bon fonctionnement du mécanisme. Ceci concerne en particulier les composants qui constituent un mécanisme d'échappement: roue d'échappement et ancre, où, pour la stabilité chronométrique du balancier, la répétabilité de la position peut s'avérer insuffisante pour garantir le bon fonctionnement du mécanisme. Dans le cas spécifique d'un échappement à ancre, la variation de position de l'ancre modifie les entraxes et la ligne des centres, ce qui modifie directement les sécurités, le rendement et le retard à l'échappement.In the case of critical chronometry components, the repeatability of the position thus obtained may be insufficient to ensure the proper operation of the mechanism. This concerns in particular the components that constitute an escape mechanism: escape wheel and anchor, where, for the chronometric stability of the balance, the repeatability of the position may be insufficient to ensure the proper operation of the mechanism. In the specific case of an anchor escapement, the variation of the position of the anchor modifies the center distances and the center line, which directly modifies the safety, the efficiency and the exhaust delay.

Le document EP 2 458 454 A1 au nom de ETA SA décrit concerne un dispositif de positionnement entre un pont et une platine, comportant un pion de centrage à symétrie de révolution, la platine comportant, pour le centrage du pont sur la platine, une implantation femelle de centrage, s'étendant selon une direction d'introduction et comportant des facettes selon une section polygonale ou en étoile orthogonalement à la direction d'introduction, et l'implantation femelle étant agencée pour recevoir, en appui sur au moins trois des facettes, le pion de centrage fixé sur le pont. Cette section polygonale est circonscrite à un cercle inscrit de diamètre inférieur au diamètre d'une portée de centrage cylindrique que comporte le pion de centrage.The document EP 2 458 454 A1 in the name of ETA SA describes a positioning device between a bridge and a plate, comprising a rotationally symmetrical centering pin, the plate comprising, for the centering of the bridge on the plate, a female centering implantation, extending in an insertion direction and having facets in a polygonal or star section orthogonal to the insertion direction, and the female implantation being arranged to receive, bearing on at least three of the facets, the centering pin fixed on the bridge. This polygonal section is circumscribed to an inscribed circle of diameter less than the diameter of a cylindrical centering bearing that includes the centering pin.

Le document CH 705 087 A2 au nom de HUBLOT SA décrit une pièce d'horlogerie comportant un mobile pivotant, muni d'un arbre de pivotement monté entre des paliers solidaires d'une platine et d'un pont reliés par une vis de fixation. Un organe de réglage de distance entre le pont et la platine est muni d'une partie filetée vissée dans le pont, et comporte une molette.The document CH 705 087 A2 in the name of HUBLOT SA describes a timepiece comprising a pivoting mobile, provided with a pivot shaft mounted between bearings integral with a plate and a bridge connected by a fixing screw. A distance adjusting member between the bridge and the plate is provided with a threaded portion screwed into the bridge, and comprises a wheel.

Le document DE 12 75 474 B au nom de TISSOT HORLOGERIE décrit une colonne de réglage de distance entre une platine et un pont comportant chacun une rainure oblongue, orthogonales l'une à l'autre, et la colonne comportant, d'une part une semelle logée sous la platine du côté opposé au pont, et d'autre part une extrémité fendue pour son maintien élastique au pont.The document DE 12 75 474 B TISSOT HORLOGERIE describes a distance adjustment column between a plate and a bridge each having an oblong groove, orthogonal to each other, and the column comprising, on the one hand, a soleplate housed under the plate on the side. opposite the bridge, and on the other hand a split end for its elastic support to the bridge.

Le document EP 1 860 511 A1 au nom de CHRISTOPHE CLARET SA décrit un pont pivoté élastiquement par rapport à une platine autour d'un premier axe. Le pont supporte un organe régulateur, un échappement et une partie d'un rouage de finissage. Une autre partie du rouage de finissage est montée fixe par rapport à la platine. Une roue du rouage de finissage, dont l'axe de pivotement est confondu avec le premier axe, assure la liaison entre les deux parties. Le pont comporte un système d'amortissement comprenant une unité élastique placé à une extrémité d'un arbre.The document EP 1 860 511 A1 in the name of CHRISTOPHE CLARET SA describes a bridge pivoted elastically with respect to a plate around a first axis. The bridge supports a regulating member, an escapement and a part of a finishing gear train. Another part of the finishing gear is mounted fixed relative to the plate. A wheel of the work train, whose pivot axis is coincident with the first axis, provides the connection between the two parts. The bridge comprises a damping system comprising an elastic unit placed at one end of a shaft.

Résumé de l'inventionSummary of the invention

L'invention se propose de définir un assemblage de pont sur platine qui garantisse la précision de positionnement, la position d'alignement, et qui autorise un démontage par déchassage et un repositionnement parfaitement reproductible après rechassage des éléments de positionnement.The invention proposes to define a bridge assembly on platinum which ensures the positioning accuracy, the alignment position, and which allows disassembly by disengagement and repositioning perfectly reproducible after retreading positioning elements.

A cet effet, l'invention concerne un ensemble démontable d'horlogerie selon la revendication 1, où les moyens de rattrapage de jeu sont internes à la goupille.To this end, the invention relates to a dismountable watchmaking assembly according to claim 1, wherein the play catching means are internal to the pin.

L'invention concerne encore un mécanisme d'échappement comportant au moins un tel ensemble démontable, caractérisé en ce que ledit pont est un pont d'ancre ou un pont de balancier ou un pont de rouage.The invention also relates to an escapement mechanism comprising at least one such removable assembly, characterized in that said bridge is an anchor bridge or a pendulum bridge or a gear bridge.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble démontable ou/et un tel mécanisme d'échappement.The invention also relates to a watch movement comprising at least one such removable assembly and / or such an exhaust mechanism.

L'invention concerne encore une pièce d'horlogerie comportant au moins un tel ensemble démontable ou/et un tel mécanisme d'échappement ou/et un tel mouvement.The invention also relates to a timepiece comprising at least one such removable assembly and / or such an escape mechanism and / or such a movement.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 représente, de façon schématisée et en vue de dessus, l'assemblage d'un pont d'ancre sur une platine, selon l'invention, avec en figure 2 le détail d'une première goupille dans une première implantation femelle de centrage du pont comportant deux facettes en « V », et en figure 3 le détail d'une deuxième goupille d'alignement dans une deuxième implantation femelle d'alignement comportant un plat définissant une direction d'alignement;
  • la figure 4 représente, de façon schématisée et en coupe cet assemblage du pont d'ancre sur la platine, dans une variante comportant des goupilles fendues;
  • la figure 5 représente, de façon schématisée et en vue de dessus, le pont d'ancre de la figure 4 comportant des goupilles fendues, et la figure 6 représente le même pont en perspective;
  • la figure 7 représente, de façon schématisée et en vue de dessus, une variante voisine de l'invention d'implantation d'une première goupille, qui est poussée sur des facettes en V similaires à celles de la figure 2 par une cloison mince formant une lèvre élastique déformable sous l'action d'une vis à excentrique, ou d'un appui direct ;
  • la figure 8 représente, de façon schématisée et en vue de dessus, une variante d'implantation d'une première goupille élastique fendue, qui est poussée sur des facettes en V, similaires à celles de la figure 2, de la première implantation femelle de centrage du pont, lequel comporte des moyens d'indexage pour l'indexage de la fente de la goupille, ménagés sur/dans le composant où on chasse la goupille ;
  • la figure 9 est une vue en perspective du pont d'ancre dans une non couverte par l'invention comportant des ressorts montés sur le pont et agencés pour exercer un effort tendant à plaquer chaque goupille sur les facettes ou le plat constituant ses surfaces de référence géométriques;
  • la figure 10 représente, de façon analogue à la figure 8, une variante d'implantation d'une deuxième goupille d'alignement élastique fendue, qui est poussée dans une deuxième implantation femelle d'alignement sur un plat d'alignement, similaire à celui de la figure 3, et où le pont comporte des moyens d'indexage pour l'indexage de la fente de la goupille;
  • la figure 11 représente, de façon schématisée et en vue de dessus, un pont d'ancre selon une variante non couverte par l'invention, comportant un ressort extérieur agissant en compression pour appliquer au pont un couple tendant à plaquer ses surfaces de référence géométriques de centrage et d'alignement sur la première et la deuxième goupilles, et comportant encore une vis de maintien du pont sur la platine, et tendant à appliquer un couple de même sens;
  • la figure 12 représente, de façon schématisée et en vue de dessus, un pont d'ancre selon une variante non couverte par l'invention, comportant un ressort extérieur agissant en traction pour appliquer au pont un couple tendant à plaquer ses surfaces de référence géométriques de centrage et d'alignement sur la première et la deuxième goupilles, et comportant encore une vis de maintien du pont sur la platine, et tendant à appliquer un couple de même sens;
  • la figure 13 est un graphique représentant la variation des forces de chassage/déchassage d'un pont en fonction du déplacement de goupille, avec un serrage de 15 µm ;
  • la figure 14 est un graphique représentant la variation des forces de chassage/déchassage d'un pont en fonction de la longueur de la partie flexible, selon deux configurations d'épaisseur de la partie flexible, et avec un serrage de 15 µm ;
  • la figure 15 est un graphique représentant la variation des forces de chassage/déchassage d'un pont en fonction du déplacement de la goupille, selon différentes sections de ressorts ;
  • la figure 16 est un graphique représentant la variation des forces de chassage/déchassage d'un pont en fonction de la section des ressorts montés sur le pont ;
  • la figure 17 est un schéma-blocs représentant une pièce d'horlogerie qui comporte un mouvement renfermant un mécanisme d'échappement avec un tel ensemble démontable.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the figure 1 represents, schematically and in plan view, the assembly of an anchor bridge on a plate, according to the invention, with figure 2 the detail of a first pin in a first female centering implantation of the bridge comprising two facets in "V", and in figure 3 the detail of a second alignment pin in a second alignment female implant having a plate defining an alignment direction;
  • the figure 4 schematically shows in section this assembly of the anchor bridge on the plate, in a variant comprising split pins;
  • the figure 5 represents, schematically and in plan view, the anchor bridge of the figure 4 with cotter pins, and the figure 6 represents the same bridge in perspective;
  • the figure 7 represents schematically and in top view, a variant of the invention similar to implantation of a first pin, which is pushed on facets V similar to those of the figure 2 by a thin partition forming a deformable elastic lip under the action of an eccentric screw, or a direct support;
  • the figure 8 is schematically represented in plan view, a variant of implantation of a first split elastic pin, which is pushed on facets V, similar to those of the figure 2 of the first female centering implantation of the bridge, which comprises indexing means for indexing the slot of the pin, arranged on / in the component where the pin is driven;
  • the figure 9 is a perspective view of the anchor bridge in a non covered by the invention having springs mounted on the bridge and arranged to exert a force tending to press each pin on the facets or the plate constituting its geometric reference surfaces;
  • the figure 10 represents, in a similar way to figure 8 , an alternative embodiment of a second slotted elastic alignment pin, which is pushed into a second alignment female implantation on an alignment plate, similar to that of the figure 3 , and wherein the bridge comprises indexing means for indexing the slot of the pin;
  • the figure 11 represents schematically and in plan view, an anchor bridge according to a variant not covered by the invention, comprising an outer spring acting in compression to apply to the bridge a torque tending to press its geometric centering reference surfaces and alignment on the first and second pins, and further comprising a bridge holding screw on the plate, and tending to apply a pair of the same direction;
  • the figure 12 represents schematically and in plan view, an anchor bridge according to a variant not covered by the invention, comprising an outer spring acting in tension to apply to the bridge a torque tending to press its geometric centering reference surfaces and alignment on the first and second pins, and further comprising a bridge holding screw on the plate, and tending to apply a pair of the same direction;
  • the figure 13 is a graph showing the variation of the driving / disengaging forces of a bridge as a function of pin displacement, with a clamping of 15 μm;
  • the figure 14 is a graph showing the variation of the driving / disengaging forces of a bridge as a function of the length of the flexible part, in two configurations of thickness of the flexible part, and with a clamping of 15 μm;
  • the figure 15 is a graph showing the variation of the driving / disengaging forces of a bridge as a function of the displacement of the pin, according to different sections of springs;
  • the figure 16 is a graph showing the variation of the driving / disengaging forces of a bridge as a function of the section of the springs mounted on the bridge;
  • the figure 17 is a block diagram showing a timepiece that includes a movement enclosing an exhaust mechanism with such a removable assembly.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

L'invention se propose de définir, pour un mécanisme ou un mouvement horloger, un assemblage de pont sur platine qui garantisse la précision de positionnement, la position d'alignement, et qui autorise un démontage par déchassage et un repositionnement parfaitement reproductible après rechassage des éléments de positionnement.The invention proposes to define, for a mechanism or a clockwork movement, a bridge assembly on a platinum which guarantees the positioning accuracy, the alignment position, and which allows disassembly by disengagement and repositioning perfectly reproducible after retreading of positioning elements.

Ainsi, l'invention concerne un ensemble démontable 1 d'horlogerie comportant au moins un pont 2, une platine 3, et, pour chaque tel pont, une première goupille 6 de centrage et une deuxième goupille d'alignement 11.Thus, the invention relates to a dismountable watchmaking assembly 1 comprising at least one bridge 2, a plate 3, and for each such bridge, a first centering pin 6 and a second alignment pin 11.

Un tel pont 2 est agencé pour être positionné sur la platine 3 par une première goupille 6 de centrage comportant une première surface périphérique 60, et une deuxième goupille d'alignement 11, qui sont agencées pour coopérer à la fois avec la platine 3 et le pont 2.Such a bridge 2 is arranged to be positioned on the plate 3 by a first centering pin 6 having a first peripheral surface 60, and a second alignment pin 11, which are arranged to cooperate with both the plate 3 and the bridge 2.

Selon l'invention, au moins la platine 3 ou le pont 2 comporte, pour le centrage relatif du pont 2 avec la platine 3, une première implantation femelle de centrage 4 qui comporte deux premières facettes 5 qui forment un dièdre 50 d'arête parallèle à une direction d'engagement D, et la première implantation femelle 4 étant agencée pour recevoir la première goupille 6 en appui sur les deux premières facettes 5 par une première partie 61 de sa première surface périphérique 60. Et cet ensemble 1 comporte des premiers moyens de rattrapage de jeu 20 qui sont agencés pour exercer, quand la première goupille 6 est en position d'appui sur les deux premières facettes 5, un effort direct ou indirect sur la première goupille 6.According to the invention, at least the plate 3 or the bridge 2 comprises, for the relative centering of the bridge 2 with the plate 3, a first centering female implantation 4 which comprises two first facets 5 which form a dihedron 50 of parallel ridge at an engagement direction D, and the first female implantation 4 being arranged to receive the first pin 6 bearing on the first two facets 5 by a first portion 61 of its first peripheral surface 60. And this set 1 comprises first means 21, which are arranged to exert, when the first pin 6 is in the bearing position on the first two facets 5, a direct or indirect force on the first pin 6.

Plus particulièrement, dans une variante, ces premiers moyens de rattrapage de jeu 20 sont agencés pour exercer, quand la première goupille 6 est en position d'appui sur les deux premières facettes 5, en plus de l'appui sur ces premières facettes 5, un effort de poussée sur uniquement une deuxième partie 62 de la première surface périphérique 60, qui est distincte de la première partie 61 en appui sur le dièdre 50, tel que visible sur la figure 2.More particularly, in a variant, these first game-catching means 20 are arranged to exert, when the first pin 6 is in a bearing position on the first two facets 5, in addition to pressing on these first facets 5, a thrust force on only a second portion 62 of the first peripheral surface 60, which is distinct from the first portion 61 resting on the dihedron 50, as visible on the figure 2 .

En somme, la goupille est triangulée : appui franc en deux zones distinctes de première partie 61 de sa première surface périphérique 60 sur les deux premières facettes 5, et effort de placage exercé sur cette deuxième partie 62.In sum, the pin is triangulated: free support in two distinct areas of first part 61 of its first peripheral surface 60 on the first two facets 5, and plating force exerted on this second part 62.

Avantageusement les premiers moyens de rattrapage de jeu 20 exercent cet effort de poussée de placage selon une direction contenue dans ce plan bissecteur et parallèle, selon le cas, à la platine 3 ou au pont 2.Advantageously, the first game-catching means 20 exert this plating thrust force in a direction contained in this bisecting plane and parallel, as the case may be, to the plate 3 or to the bridge 2.

Plus particulièrement, dans une variante, ces premiers moyens de rattrapage de jeu 20 exercent cet effort de poussée de placage au voisinage du plan bissecteur du dièdre 50.More particularly, in a variant, these first play-catching means 20 exert this plating thrust force in the vicinity of the bisecting plane of the dihedron 50.

Selon le cas, le dièdre 50 peut être de rigidité supérieure à celle de la première goupille 6, par exemple dans le cas d'un pont 2 réalisé en silicium ou similaire, ou bien à l'inverse de rigidité inférieure à celle de la goupille, notamment dans le cas usuel d'un pont 2 étampé en laiton ou en tôle d'acier combiné avec une goupille en acier trempé. Ou bien encore de rigidité égale à celle de la goupille, quand l'un et l'autre sont fabriqués dans le même matériau.Depending on the case, the dihedron 50 may be of greater rigidity than that of the first pin 6, for example in the case of a bridge 2 made of silicon or the like, or conversely of inferior rigidity to that of the pin , especially in the usual case of a bridge 2 stamped brass or sheet steel combined with a pin hardened steel. Or even stiffness equal to that of the pin, when both are made of the same material.

Dans un premier mode de réalisation de l'invention, les premiers moyens de rattrapage de jeu 20 sont internes à la première goupille 6, qui est une goupille élastique ou une goupille fendue, et sont agencés pour plaquer la deuxième partie 62 sur une face de poussée 51, que comporte la première implantation femelle de centrage 4, et qui définit avec ces deux premières facettes 5 une chambre. Dans une variante particulière, une telle chambre est de section sensiblement triangulaire.In a first embodiment of the invention, the first game-catching means 20 are internal to the first pin 6, which is a pin elastic or a cotter pin, and are arranged to press the second portion 62 on a thrust surface 51, which comprises the first centering female implantation 4, and which defines with these two first facets 5 a chamber. In a particular variant, such a chamber is of substantially triangular section.

Quand la première goupille 6 est une goupille fendue, chaque fente constitue de tels premiers moyens de rattrapage de jeu 20. Dans ce cas de première goupille 6 élastique, la paroi porteuse des premières facettes 5, qui définit la précision de centrage, a avantageusement, mais non nécessairement, une rigidité qui est supérieure à celle de la première goupille 6.When the first pin 6 is a cotter pin, each slot constitutes such first play catching means 20. In this case of first elastic pin 6, the carrier wall of the first facets 5, which defines the centering accuracy, advantageously has, but not necessarily, a rigidity that is greater than that of the first pin 6.

Dans une réalisation particulière de ce premier mode, la première goupille 6 est une goupille fendue tel que visible notamment sur les figures 2 à 4, et la platine 3 ou le pont 2 qui porte la première implantation femelle de centrage 4 comporte des moyens d'indexage 45 mécaniques ou/et visuels pour l'indexage d'une première fente 65 particulière de la première goupille 6 pour un positionnement angulaire correct de cette première goupille 6, tel que visible sur la figure 8.In a particular embodiment of this first mode, the first pin 6 is a cotter pin as visible in particular on the Figures 2 to 4 , and the plate 3 or the bridge 2 which carries the first female centering implantation 4 comprises mechanical indexing means 45 and / or visual for the indexing of a first slot 65 particular of the first pin 6 for angular positioning correct of this first pin 6, as visible on the figure 8 .

De préférence, quand la première goupille 6 est une goupille fendue, la première fente 65 n'est pas médiane, mais délimite deux parties de rigidité différente, tel que visible sur la figure 8 : une première partie 68 plus rigide, par exemple sur les deux tiers de la section, portant la première partie 61 d'appui sur les premières facettes 5, et une deuxième partie 69 plus faible par exemple sur un tiers de la section et comportant la deuxième partie 62 sur laquelle s'exerce l'effort de poussée égal et opposé à l'appui résultant exercé sur les premières facettes 5.Preferably, when the first pin 6 is a split pin, the first slot 65 is not median, but delimits two parts of different stiffness, as visible on the figure 8 : a first part 68 more rigid, for example on two thirds of the section, carrying the first part 61 of support on the first facets 5, and a second part 69 lower for example on a third of the section and comprising the second part 62 on which exerts the thrust effort equal and opposite to the resulting support exerted on the first facets 5.

Dans une exécution particulière, la surface enveloppe de la première surface périphérique 60 de la première goupille 6 est à symétrie de révolution. Ceci peut concerner aussi bien le deuxième mode de réalisation que le premier mode à goupille élastique fendue, la surface enveloppe à symétrie de révolution concernant alors l'état libre de cette goupille.In a particular embodiment, the envelope surface of the first peripheral surface 60 of the first pin 6 is symmetrical of revolution. This may concern both the second embodiment and the first slotted elastic pin mode, the envelope surface symmetry of revolution then concerning the free state of this pin.

Dans une exécution particulière visible sur les figures, mais non limitative, la platine 3 comporte un premier alésage de logement de la première goupille 6, et le pont 2 comporte la première implantation femelle de centrage 4.In a particular embodiment shown in the figures, but not limited to, the plate 3 comprises a first housing bore of the first pin 6, and the bridge 2 comprises the first female centering implantation 4.

Dans une exécution particulière non illustrée, à la fois la platine 3 et le pont 2 comportent chacun une telle première implantation femelle de centrage 4 ; il est alors nécessaire que les moyens de rattrapage de jeu exercent des efforts d'intensité différente sur l'une et sur l'autre.In a particular embodiment not illustrated, both the plate 3 and the bridge 2 each comprise such a first female centering implantation 4; it is then necessary that the means of catching play exert efforts of different intensity on one and the other.

Dans une exécution particulière visible sur les figures 11 et 12, la platine 3 et le pont 2 sont maintenus assemblés l'un à l'autre par au moins une vis de fixation 90. Le plan bissecteur du dièdre 50 est de préférence sensiblement parallèle à l'effort engendré par le couple de serrage de la vis de fixation 90 et ramené aux premières facettes 5, et le couple de vissage C appliqué à la vis de fixation 90 tend à renforcer l'appui de la première goupille 6 sur les deux premières facettes 5.In a particular execution visible on the Figures 11 and 12 the plate 3 and the bridge 2 are held together by at least one fixing screw 90. The bisecting plane of the dihedron 50 is preferably substantially parallel to the force generated by the tightening torque of the fixing screw 90 and brought back to the first facets 5, and the tightening torque C applied to the fixing screw 90 tends to reinforce the support of the first pin 6 on the first two facets 5.

Le positionnement de la première goupille 6 est ainsi parfaitement assuré; pour assurer l'alignement relatif correct entre le pont 2 et la platine 3, selon l'invention, la platine 3 ou/et le pont 2 comporte encore une deuxième implantation femelle d'alignement 8. Cette deuxième implantation femelle d'alignement 8 comporte au moins une deuxième face plane 81 selon une direction d'alignement DA, et qui est agencée pour recevoir une deuxième surface de contact 110 d'une deuxième goupille d'alignement 11 que porte respectivement le pont 2 ou la platine 3.The positioning of the first pin 6 is thus perfectly assured; to ensure the correct relative alignment between the bridge 2 and the plate 3, according to the invention, the plate 3 or / and the bridge 2 further comprises a second alignment female implantation 8. This second alignment female implantation 8 comprises at least one second plane face 81 in an alignment direction DA, and which is arranged to receive a second contact surface 110 of a second alignment pin 11 which carries respectively the bridge 2 or the plate 3.

Et, selon l'invention, l'ensemble 1 comporte des deuxièmes moyens de rattrapage de jeu 21, qui sont agencés pour exercer un effort de poussée sur la deuxième goupille d'alignement 11 quand elle est en position d'appui sur la deuxième face plane 81.And, according to the invention, the assembly 1 comprises second play-catching means 21, which are arranged to exert a thrust force on the second alignment pin 11 when it is in a bearing position on the second face plane 81.

Dans une variante particulière préférée, la direction d'alignement DA de la deuxième face plane 81 s'étend parallèlement à un plan défini par les axes de positionnement de la première goupille 6 et de la deuxième goupille 11.In a particular particular variant, the alignment direction DA of the second planar face 81 extends parallel to a plane defined by the positioning axes of the first pin 6 and the second pin 11.

Dans une variante particulière, la direction d'alignement DA de la deuxième face plane 81 peut, encore, s'étendre orthogonalement au plan bissecteur du dièdre 50.In a particular variant, the alignment direction DA of the second planar face 81 may, again, extend orthogonally to the bisecting plane of the dihedron 50.

Dans une variante particulière visible sur les figures 5 et 6, la deuxième implantation femelle d'alignement 8 est un logement femelle rectiligne à faces parallèles 81, 82, aligné selon une direction d'alignement DA perpendiculaire à la direction d'engagement D. Cette réalisation est surtout liée à une commodité d'usinage en cas d'usinage à l'outil, car une seule deuxième face plane 81 suffit à la mise en oeuvre de l'invention.In a particular variant visible on the Figures 5 and 6 , the second alignment female implantation 8 is a rectilinear female housing with parallel faces 81, 82, aligned in an alignment direction DA perpendicular to the engagement direction D. This embodiment is mainly related to a machining convenience in tool machining case, because only one second plane face 81 is sufficient for the implementation of the invention.

Dans le premier mode de réalisation de l'invention, les deuxièmes moyens de rattrapage de jeu 21 sont internes à la deuxième goupille d'alignement 11 qui est une goupille élastique ou une goupille fendue, et sont agencés pour plaquer la deuxième surface de contact 110 sur la deuxième face plane 81.In the first embodiment of the invention, the second play catching means 21 are internal to the second alignment pin 11 which is an elastic pin or a cotter pin, and are arranged to press the second contact surface 110. on the second flat face 81.

Plus particulièrement, la deuxième goupille d'alignement 11 est une goupille fendue, tel que visible sur la figure 3, et la platine 3 ou le pont 2 qui porte la deuxième implantation femelle d'alignement 8 comporte des moyens d'indexage 85 mécaniques ou/et visuels pour l'indexage d'une deuxième fente 115 particulière de la deuxième goupille d'alignement 11 pour un positionnement angulaire correct, permettant de profiter de la déformation parfaitement élastique de la goupille sur laquelle doit être appliqué l'effort, tel que visible sur la figure 10. Dans ce cas d'une deuxième goupille 11 élastique, la paroi porteuse de la deuxième face plane 81, qui définit la précision d'alignement, a avantageusement mais non nécessairement une rigidité qui est supérieure à celle de la deuxième goupille 11.More particularly, the second alignment pin 11 is a cotter pin, as visible on the figure 3 , and the plate 3 or the bridge 2 which carries the second alignment female implantation 8 includes mechanical indexing means 85 and / or visual for the indexing of a second slot 115 particular of the second alignment pin 11 for correct angular positioning, to take advantage of the perfectly elastic deformation of the pin on which effort must be applied, as visible on the figure 10 . In this case of a second elastic pin 11, the bearing wall of the second planar face 81, which defines the alignment accuracy, advantageously but not necessarily has a stiffness which is greater than that of the second pin 11.

On comprend que les agencements décrits pour la première goupille 6 sont applicables de façon similaire pour la deuxième goupille 11.It is understood that the arrangements described for the first pin 6 are similarly applicable for the second pin 11.

Dans le deuxième mode de réalisation de l'invention, les deuxièmes moyens de rattrapage de jeu 21 sont externes à la deuxième goupille d'alignement 11, et comportent des deuxièmes moyens de rappel élastique 70 qui sont :

  • ou bien incorporés dans la platine 3 ou le pont 2 sous forme d'une deuxième lèvre élastique analogue à la première lèvre élastique 41 de la figure 7,
  • ou bien agencés en surépaisseur sur la platine 3 ou le pont 2 sous forme d'un deuxième ressort superficiel 710 monobloc avec la platine 3 ou le pont 2 ou rapporté sur la platine 3 ou le pont 2, tel que visible sur la figure 9,
  • ou bien encore constitués par un deuxième ressort de manoeuvre 72 fixé sur la platine 3 et exerçant un effort sur le pont 2, tel que visible sur les figures 11 et 12, où ce ressort 72 est le même qui assure l'appui de la première goupille 6 sur les premières facettes 5. Un tel ressort externe 72 est fixé directement sur la platine 3, et applique une force sur le pont 2 de manière à le contraindre en contact avec les goupilles, et les logements sont positionnés et orientés pour que la force du ressort externe 72 leur permette d'être en contact avec leurs goupilles respectives mais aussi pour que, lors du vissage de la vis de fixation 90, le couple de vissage contraint également ces logements en appui contre les goupilles, et surtout ne provoque aucun décollement entre la goupille concernée et son logement, indépendamment du couple appliqué à la vis.
In the second embodiment of the invention, the second play-catching means 21 are external to the second alignment pin 11, and comprise second elastic return means 70 which are:
  • or incorporated in the plate 3 or the bridge 2 in the form of a second elastic lip similar to the first elastic lip 41 of the figure 7 ,
  • or else arranged in an extra thickness on the plate 3 or the bridge 2 in the form of a second superficial spring 710 integral with the plate 3 or the bridge 2 or attached to the plate 3 or the bridge 2, as visible on the figure 9 ,
  • or else constituted by a second operating spring 72 fixed on the plate 3 and exerting a force on the bridge 2, as visible on the Figures 11 and 12 , where this spring 72 is the same which ensures the support of the first pin 6 on the first facets 5. Such external spring 72 is fixed directly on the plate 3, and applies a force on the bridge 2 so as to constrain in contact with the pins, and the housings are positioned and oriented so that the force of the external spring 72 allows them to be in contact with their respective pins but also so that, during the screwing of the fixing screw 90, the torque of screwing also forces these housing in support against the pins, and especially causes no detachment between the pin concerned and its housing, regardless of the torque applied to the screw.

Dans une exécution particulière, la surface enveloppe de la deuxième surface périphérique de la deuxième goupille d'alignement 11 est à symétrie de révolution. Ceci peut concerner aussi bien le deuxième mode de réalisation que le premier mode à goupille élastique fendue, la surface enveloppe à symétrie de révolution concernant alors l'état libre de cette goupille.In a particular embodiment, the envelope surface of the second peripheral surface of the second alignment pin 11 is symmetrical of revolution. This may concern both the second embodiment and the first slotted elastic pin mode, the envelope surface symmetry of revolution then concerning the free state of this pin.

Dans une exécution particulière visible sur les figures, mais non limitative, la platine 3 comporte un deuxième alésage de logement de la deuxième goupille d'alignement 11, et le pont 2 comporte la deuxième implantation femelle d'alignement 8.In a particular embodiment shown in the figures, but not limited to, the plate 3 comprises a second housing bore of the second alignment pin 11, and the bridge 2 comprises the second alignment female implantation 8.

Dans une exécution particulière non illustrée, à la fois la platine 3 et le pont 2 comportent chacun une telle deuxième implantation femelle d'alignement 8, mais, comme plus haut dans le cas de la première goupille 6 de centrage, il est nécessaire que l'effort appliqué côté platine soit différent de celui appliqué du côté pont.In a particular embodiment not illustrated, both the plate 3 and the bridge 2 each comprise such a second female alignment implantation 8, but, as above in the case of the first centering pin 6, it is necessary that the the force applied on the platinum side is different from that applied on the bridge side.

Dans une exécution particulière, la platine 3 et le pont 2 sont maintenus assemblés l'un à l'autre par au moins une vis de fixation 90, et le couple de vissage C appliqué à la vis de fixation 90 tend à renforcer l'appui de la deuxième goupille d'alignement 11 sur la deuxième face plane 81: aucun décollement entre la deuxième goupille d'alignement 11 et la face plane n'est provoqué par le vissage de la vis de fixation 90. Et la deuxième face plane 81 est de préférence sensiblement perpendiculaire à la direction de l'effort exercé par cette deuxième face plane 81 sur la deuxième goupille 11 lors du serrage de la vis de fixation 90.In a particular embodiment, the plate 3 and the bridge 2 are held assembled to each other by at least one fastening screw 90, and the tightening torque C applied to the fastening screw 90 tends to reinforce the support of the second alignment pin 11 on the second flat face 81: no separation between the second alignment pin 11 and the flat face is caused by the screwing of the fixing screw 90. And the second flat face 81 is preferably substantially perpendicular to the direction of the force exerted by this second flat face 81 on the second pin 11 during the tightening of the fixing screw 90.

Dans une réalisation avantageuse, la position de la vis de fixation 90 est calculée pour un bras de levier maximal par rapport aux premières facettes 5 d'une part, et à la deuxième face plane 81 d'autre part.In an advantageous embodiment, the position of the fixing screw 90 is calculated for a maximum lever arm with respect to the first facets 5 on the one hand, and the second flat face 81 on the other hand.

Dans une mise en oeuvre particulièrement avantageuse de l'invention, le pont 2 est un pont d'ancre ou un pont de balancier ou un pont de rouage.In a particularly advantageous embodiment of the invention, the bridge 2 is an anchor bridge or a pendulum bridge or a gear bridge.

L'invention concerne encore un mécanisme d'échappement 100 comportant au moins un tel ensemble démontable, caractérisé en ce que ledit pont est un pont d'ancre ou un pont de balancier ou un pont de rouage.The invention also relates to an escapement mechanism 100 comprising at least one such removable assembly, characterized in that said bridge is an anchor bridge or a balance bridge or a gear bridge.

L'invention concerne encore un mouvement d'horlogerie 200 comportant au moins un tel ensemble démontable 1 ou/et un tel mécanisme d'échappement.The invention also relates to a watch movement 200 comprising at least one such removable assembly 1 and / or such an exhaust mechanism.

L'invention concerne encore une pièce d'horlogerie 300 comportant au moins un tel ensemble démontable 1 ou/et un tel mécanisme d'échappement 100 ou/et un tel mouvement 200. Plus particulièrement, cette pièce d'horlogerie 300 est une montre.The invention also relates to a timepiece 300 comprising at least one such removable assembly 1 and / or such an escape mechanism 100 and / or such a movement 200. More particularly, this timepiece 300 is a watch.

Pour ce type de solution, l'annulation du jeu dans l'assemblage du pont 2 avec les goupilles 6 et 11 est basée sur une précontrainte du pont 2 donnée par des pièces flexibles. Comme l'illustre la figure 1, la première goupille 6 est en contact avec un dièdre 50 en « V » à deux premières facettes 5 de manière à enlever deux degrés de liberté au pont 2. La deuxième goupille 11 est en contact avec une deuxième implantation femelle d'alignement 8 avec de préférence une seule face de contact utile qui est la deuxième face plane 81, de manière à enlever le dernier degré de liberté au pont 2 (les trois autres degrés de liberté étant éliminés par le contact plan sur plan avec la platine 3).For this type of solution, the clearance of the clearance in the assembly of the bridge 2 with the pins 6 and 11 is based on a preload of the bridge 2 given by flexible parts. As illustrated by figure 1 the first pin 6 is in contact with a first-facet-shaped "V" dihedral 50 so as to remove two degrees of freedom at the bridge 2. The second pin 11 is in contact with a second alignment female 8 with preferably a single useful contact face which is the second planar face 81, so as to remove the last degree of freedom to the bridge 2 (the other three degrees of freedom being eliminated by the contact plan on plane with the plate 3).

Le placement et l'orientation des implantations femelles sont de préférence réalisés de manière à ce que l'opération de serrage de la première vis de fixation 90, qui génère un couple C agissant sur le pont 2, ne dégrade pas la position du pont 2, et donc la position du pivotement du composant tenu par le pont. Pour cela, la partie flexible ne doit pas être sollicitée lors du serrage de la vis de fixation 90.The placement and orientation of the female implantations are preferably made in such a way that the tightening operation of the first fixing screw 90, which generates a torque C acting on the bridge 2, does not degrade the position of the bridge 2 , and therefore the position of the pivoting component held by the bridge. For this, the flexible part must not be stressed when tightening the fixing screw 90.

Le dimensionnement des parties flexibles est réalisé de manière à ce que la force minimum sur les goupilles 6 et 11 permette de garder le pont 2 dans sa position de service, même sans la ou les vis de serrage. Autrement dit, le produit de la force minimale de contact sur chaque goupille et du coefficient de frottement doit correspondre au produit du poids du pont et d'un facteur de sécurité. Ceci permet de manipuler le mouvement sans risquer que le composant tombe.The dimensions of the flexible parts are designed so that the minimum force on the pins 6 and 11 makes it possible to keep the bridge 2 in its operating position, even without the tightening screw or screws. In other words, the product of the minimum contact force on each pin and the coefficient of friction must correspond to the product of the weight of the bridge and a safety factor. This makes it possible to manipulate the movement without risking that the component falls.

Les modes de réalisation sont décrits ici pour le cas spécifique d'un pont d'ancre, mais ils sont généralisables à d'autres composants de positionnement.Embodiments are described here for the specific case of an anchor bridge, but they are generalizable to other positioning components.

Le premier mode de réalisation avec des goupilles fendues utilise les goupilles comme partie flexible, en intégrant une fente sur une partie de la goupille ce qui permet de rendre une partie de la goupille flexible. Dans le cas spécifique d'un pont d'ancre similaire à celui de la référence « BREGUET 7727 », la partie flexible a une épaisseur comprise entre 0.05 mm et 0.1 mm et une longueur L comprise entre 0.5 mm et 1 mm. Cette solution nécessite que les goupilles 6 et 11 soient bien positionnées (position angulaire) lors du chassage dans la platine 3 de manière à ce que la partie rigide de chacune des goupilles soit respectivement en contact avec le dièdre 50 en « V » et la face de contact 81 de la deuxième implantation femelle d'alignement 8.The first embodiment with cotter pins uses the pins as a flexible part, incorporating a slot on a portion of the pin which makes part of the pin flexible. In the specific case of an anchor bridge similar to that of the reference "BREGUET 7727", the flexible portion has a thickness of between 0.05 mm and 0.1 mm and a length L of between 0.5 mm and 1 mm. This solution requires that the pins 6 and 11 are well positioned (angular position) during the driving in the plate 3 so that the rigid portion of each of the pins is respectively in contact with the dihedron 50 in "V" and the face contact 81 of the second alignment female implantation 8.

La figure 13 est un graphique représentant en ordonnée les forces de chassage/déchassage d'un pont en fonction du déplacement de la goupille en abscisse, pour un serrage de 15 µm et pour deux géométries différentes de la partie flexible.The figure 13 is a graph representing, on the ordinate, the driving forces of a bridge as a function of the displacement of the pin on the abscissa, for a clamping of 15 μm and for two different geometries of the flexible part.

La courbe C1 correspond à e=0,05 mm et L=0,50 mm. La courbe C2 correspond à e=0,10 mm et L=0,50 mm. Dans les deux cas, la force maximale de déchassage (partie négative) est inférieure à 1 N ce qui est satisfaisant pour démonter facilement le pont sans détériorer les composants (on considère que la force de déchassage maximale à ne pas dépasser est de 3 N, mais pour certains pont plus petits et régulièrement manipulés comme le pont d'ancre, une force maximale inférieure à 1 N est recommandée).Curve C1 corresponds to e = 0.05 mm and L = 0.50 mm. Curve C2 corresponds to e = 0.10 mm and L = 0.50 mm. In both cases, the maximum stripping force (negative part) is less than 1 N which is satisfactory for easily dismounting the bridge without damaging the components (it is considered that the maximum stripping force not to be exceeded is 3 N, but for some smaller and regularly handled deck such as the anchor deck, a maximum force of less than 1 N is recommended).

La figure 14 est un graphique représentant en ordonnée les forces de chassage/déchassage d'un pont en fonction, en abscisse, de la longueur de la partie flexible, pour un serrage de 15 µm, et pour différents paramètres géométriques. La courbe C1 correspond à e=0,10 mm, la courbe C2 correspond à e=0,05 mm. La courbe C3 est la force de déchassage mini. Dans ce premier mode de réalisation la variante efficace L est comprise entre 0.5 mm et 0.7 mm, et l'épaisseur de la lame entre 0.05 mm et 0.1 mm. Avec tous les paramètres géométriques utilisés dans ce cas, la force de déchassage du pont d'ancre est satisfaisante.The figure 14 is a graph representing, on the ordinate, the driving forces of a bridge depending on the abscissa of the length of the flexible part, for a clamping of 15 μm, and for different geometrical parameters. Curve C1 corresponds to e = 0.10 mm, curve C2 corresponds to e = 0.05 mm. Curve C3 is the minimum stripping force. In this first embodiment the effective variant L is between 0.5 mm and 0.7 mm, and the thickness of the blade between 0.05 mm and 0.1 mm. With all the geometrical parameters used in this case, the anchor breakout force is satisfactory.

La figure 15 est un graphique représentant en ordonnée les forces de chassage/déchassage d'un pont en fonction, en abscisse, du déplacement de la goupille, pour trois sections différentes du ressort, dans ce deuxième mode de réalisation. La courbe C1 correspond à la force pour un ressort de section nominale, la courbe C2 pour un ressort de section minimale, et la courbe C3 pour un ressort de section maximale. Dans les trois cas, la force maximale de déchassage (partie négative) est largement inférieure à 1 N ce qui est satisfaisant pour démonter facilement le pont sans détériorer les composants. Cette force est également suffisante dans la mesure où elle est supérieure au poids du pont (environ 0.1 gramme-force) multiplié par un facteur sécurité (10) ce qui donne une force minimum de tenue d'environ 0.01 N pour cet exemple (cette valeur est dépendante de la masse du pont).The figure 15 is a graph showing the yoke forces of a bridge based on the abscissa of the displacement of the pin, for three different sections of the spring, in this second embodiment. The curve C1 corresponds to the force for a nominal section spring, the C2 curve for a minimum section spring, and the C3 curve for a maximum section spring. In all three cases, the maximum stripping force (negative part) is much less than 1 N, which is satisfactory for easily dismantling the bridge without damaging the components. This force is also sufficient insofar as it is greater than the weight of the bridge (about 0.1 gram-force) multiplied by a safety factor (10) which gives a minimum holding force of about 0.01 N for this example (this value is dependent on the mass of the bridge).

La figure 16 est un graphique représentant en ordonnée les forces de chassage/déchassage d'un pont en fonction, en abscisse, de la section des ressorts montés sur le pont dans ce deuxième mode de réalisation, dans une variante qui est efficace pour une section comprise entre 0.03 mm2 et 0.05 mm2. Avec tous les paramètres géométriques utilisés dans ce cas, la force de déchassage du pont d'ancre est satisfaisante (supérieure à 0.01 N et inférieure à 3 N).The figure 16 is a graph plotting the stripping / decoupling forces of a bridge based on the abscissa of the section of the springs mounted on the bridge in this second embodiment, in a variant that is effective for a section between 0.03 mm 2 and 0.05 mm 2 . With all the geometrical parameters used in this case, the anchor bridge release force is satisfactory (greater than 0.01 N and less than 3 N).

Quand on considère la déformée du ressort de traction de la réalisation de la figure 12, réalisé avec une forme optimisée pour le cas spécifique d'un pont, on observe que les contraintes maximales restent faibles (1486 MPa) si l'on considère un ressort en acier maraging. La force entre le pont et la deuxième goupille d'alignement logée dans la deuxième implantation femelle d'alignement est de 0.3 N. l'effort appliqué entre la première goupille et son implantation est de 2,3 N, l'effort directement appliqué par le ressort externe est de 2,3 N. En considérant un coefficient de frottement µ = 0.15, la force de tenue par cette goupille est de 0.045 N, ce qui est plus élevé que la force de tenue minimale recommandée.When one considers the deformation of the tension spring of the realization of the figure 12 , realized with a shape optimized for the specific case of a bridge, one observes that the maximum stresses remain weak (1486 MPa) if one considers a maraging steel spring. The force between the bridge and the second alignment pin housed in the second alignment alignment is 0.3 N. The force applied between the first pin and its implantation is 2.3 N, the force directly applied by the external spring is 2.3 N. Considering a coefficient of friction μ = 0.15, the holding force by this pin is 0.045 N, which is higher than the recommended minimum holding force.

L'invention présente d'importants avantages.The invention has important advantages.

Les solutions proposées ci-dessus permettent de rendre répétable le positionnement d'un pont par rapport à la platine, et ce indépendamment de la manipulation réalisée lors de l'assemblage.The solutions proposed above make it possible to repeat the positioning of a bridge with respect to the plate, independently of the manipulation performed during assembly.

Actuellement, les horlogers ont besoin de démonter et remonter plusieurs fois le pont d'ancre pour ajuster la position des palettes notamment. Avec un système traditionnel, comme la position n'est pas toujours bien reproduite d'un assemblage à l'autre, les corrections réalisées ne produisent pas toujours les effets souhaités ce qui rend d'autant plus long l'achevage de l'échappement d'un mouvement. Avec l'invention, la position du pivotement de l'ancre est reproduite de manière optimale après une opération de démontage/remontage. Pour cette raison, l'application de ces variantes de l'invention au pont d'ancre est la plus avantageuse, car les performances chronométriques d'un mouvement sont particulièrement sensibles à la position de l'ancre.Currently, watchmakers need to dismantle and reassemble the anchor bridge several times to adjust the position of the pallets in particular. With a traditional system, as the position is not always well reproduced from one assembly to another, the corrections made do not always produce the desired effects which makes the completion of the exhaust of 'a movement. With the invention, the pivoting position of the anchor is reproduced optimally after a disassembly / reassembly operation. For this reason, the application of these variants of the invention to the anchor bridge is the most advantageous, because the chronometric performance of a movement is particularly sensitive to the position of the anchor.

L'invention est également intéressante pour tous les ponts d'un mouvement horloger ou d'un mécanisme d'horlogerie, et en particulier les ponts qui permettent le positionnement précis d'un composant en rotation ou pivotement. En particulier l'invention est avantageuse pour les ponts qui permettent de positionner les composants de l'échappement, tels que roue d'échappement, ancre, balancier.The invention is also interesting for all the bridges of a watch movement or a watch mechanism, and in particular the bridges which allow the precise positioning of a component in rotation or pivoting. In particular, the invention is advantageous for the bridges which make it possible to position the components of the escapement, such as escape wheel, anchor, balance wheel.

La présente invention est également avantageuse pour des reconditionnements en après-vente: en effet, l'horloger qui manipule le pont muni d'un tel système de positionnement sans jeu est alors assuré d'assembler le pont d'ancre dans une position identique à la position initiale.The present invention is also advantageous for after-sales overhauls: indeed, the watchmaker who handles the bridge provided with such a positioning system without play is then assured of assembling the anchor bridge in a position identical to the initial position.

Claims (20)

  1. Dismantlable timepiece assembly (1) including at least one bar or bridge (2) arranged to be positioned on a plate (3) by a first centring pin (6) including a first peripheral surface (60) and a second alignment pin (11), which are comprised in said assembly (1) and arranged to cooperate both with said plate (3) and said bar (2), wherein at least said plate (3) or said bar (2) includes, for the relative centring of said bar (2) relative to said plate (3), a first female centring arrangement (4), which includes two first facets (5) which form a dihedral edge (50) parallel to a direction of engagement (D), and said first female arrangement (4) is arranged to receive said first pin (6) in abutment on said two first facets (5) via a first portion (61) of said first peripheral surface (60), which said first peripheral surface (60) includes a second portion (62) distinct from said first portion (61), and wherein said assembly (1) includes first play take-up means (20) which are arranged to press one surface of said first pin (6) in a position abutting said two first facets (5), characterized in that said first play take-up means (20) are internal to said first pin (6) which is a split pin, each slot of which forms said first play take-up means (20), which are arranged to exert, when said first pin (6) is in a position abutting said two first facets (5), a thrust force on only a second portion (62) of said first peripheral surface (60), distinct from said first portion (61) abutting on said dihedral edge (50).
  2. Dismantlable assembly (1) according to claim 1, characterized in that said first play take-up means (20) are arranged to press said second portion (62) onto a thrust face (51) comprised in said first female centring arrangement (4) and which defines, with said two first facets (5), a chamber for receiving said first pin (6).
  3. Dismantlable assembly (1) according to claim 1, characterized in that said first pin (6) includes a first slot (65) which delimits two asymmetrical parts, of different stiffness, one (68) carrying the first portion (61) abutting on said first facets (5), and the other (69) carrying said second portion (62) on which is exerted the thrust force that is equal and opposite to the resulting abutting force exerted on said first facets (5).
  4. Dismantlable assembly (1) according to any of claims 1 to 3, characterized in that said plate (3) or said bar (2), which carries said first female centring arrangement (4), includes mechanical and/or visual indexing means (45) for indexing a first particular slot (65) of said first pin (11) for correct angular positioning of said first pin (6).
  5. Dismantlable assembly (1) according to any of claims 1 to 4, characterized in that the surface envelope of said first peripheral surface (60) of said first pin (6) is rotationally symmetrical.
  6. Dismantlable assembly (1) according to any of claims 1 to 5, characterized in that said plate (3) includes a first bore for housing said first pin (6), and said bar (2) includes said first female centring arrangement (4).
  7. Dismantlable assembly (1) according to any of claims 1 to 6, characterized in that said plate (3) and said bar (2) are held assembled to each other by at least one securing screw (90), and in that the bisector plane of said dihedral edge (50) is substantially parallel to the force generated by the gripping torque of said securing screw (90) and returned to said first facets (5), and in that the direction of the screwing torque (C) applied to said securing screw (90) tends to reinforce the abutment of said first pin (6) on said two first facets (5).
  8. Dismantlable assembly (1) according to any of claims 1 to 7, characterized in that said plate (3) and/or said bar (2) includes, for the relative alignment of said bar (2) with respect to said plate (3), a second female alignment arrangement (8) including at least a second planar face (81) and arranged to receive a second contact surface (110) of a second alignment pin (11) respectively comprised in said bar (2) or said plate (3), and further characterized in that said assembly (1) includes second play take-up means (21) which are arranged to exert a thrust force on said second alignment pin (11) when said pin is in a position abutting said second planar face (81).
  9. Dismantlable assembly (1) according to claim 8, characterized in that said second play take-up means (21) are formed, either in a first embodiment by said second alignment pin (11), or, in a second embodiment, by means external to said second alignment pin (11).
  10. Dismantlable assembly (1) according to claim 8, characterized in that said second planar face (81) extends orthogonally to a plane defined by the positioning axes of said first pin (6) and second pin (11).
  11. Dismantlable assembly (1) according to claim 8 or 10, characterized in that said second alignment pin (11), which is a resilient pin or a split pin, forms said second play take-up means (21) which are arranged to press said second contact surface (110) onto said second planar face (81).
  12. Dismantlable assembly (1) according to claim 11, characterized in that said second alignment pin (11) is a split pin, and in that said plate (3) or said bar (2), which carries said second female centring arrangement (8), includes mechanical and/or visual indexing means (85) for indexing a second particular slot (115) of said second pin (11) for reproducible angular positioning.
  13. Dismantlable assembly (1) according to claim 8 or 10, characterized in that said second play take-up means (21) are external to said second alignment pin (11) and include second elastic return means (70) which are either incorporated in said plate (3) or said bar (2) in the form of a second resilient lip, or arranged in excess thickness on said plate (3) or said bar (2) in the form of a second surface spring (710) in one piece with said plate (3) or said bar (2) or added to said plate (3) or said bar (2), or formed by a second actuating spring (72) secured to said plate (3) and exerting a force on said bar (2).
  14. Dismantlable assembly (1) according to any of claims 8 to 13, characterized in that the surface envelope of the peripheral surface of said second alignment pin (11) is rotationally symmetrical.
  15. Dismantlable assembly (1) according to any of claims 8 to 14, characterized in that said plate (3) includes a second bore for housing said second alignment pin (11), and said bar (2) includes said second female alignment arrangement (8).
  16. Dismantlable assembly (1) according to any of claims 8 to 15, characterized in that said plate (3) and said bar (2) are held assembled to each other by at least one securing screw (90), and in that the screwing torque (C) applied to said securing screw (90) tends to reinforce the abutment of said second alignment pin (11) on said second planar face (81), and in that said second planar face (81) is substantially perpendicular to the direction of the force exerted by said second planar face (81) on said second pin (11) when said securing screw (90) is screwed in.
  17. Dismantlable assembly (1) according to claim 16, characterized in that the position of said securing screw (90) is calculated for maximum lever arm with respect to said first facets (5) on the one hand, and to said second planar face (81) on the other hand.
  18. Escapement mechanism (100) including at least one dismantlable assembly (1) according to any of claims 1 to 17, characterized in that said bar (2) is a pallet cock or a balance cock or a gear train bar.
  19. Timepiece movement (200) including at least one dismantlable assembly (1) according to any of claims 1 to 17, and/or an escapement mechanism (100) according to claim 18.
  20. Timepiece (300) including at least one dismantlable assembly (1) according to any of claims 1 to 17, and/or an escapement mechanism (100) according to claim 18 and/or a movement (200) according to claim 19.
EP14177878.7A 2014-07-21 2014-07-21 Accurate positioning of a timepiece bridge Active EP2977833B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14177878.7A EP2977833B1 (en) 2014-07-21 2014-07-21 Accurate positioning of a timepiece bridge
CN201510428774.9A CN105319944B (en) 2014-07-21 2015-07-20 Clock and watch bar clamping plate or bridge clamping plate are accurately positioned
HK16109417.8A HK1221998A1 (en) 2014-07-21 2016-08-08 Precise positioning of a timepiece bar or bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14177878.7A EP2977833B1 (en) 2014-07-21 2014-07-21 Accurate positioning of a timepiece bridge

Publications (2)

Publication Number Publication Date
EP2977833A1 EP2977833A1 (en) 2016-01-27
EP2977833B1 true EP2977833B1 (en) 2018-01-03

Family

ID=51210374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14177878.7A Active EP2977833B1 (en) 2014-07-21 2014-07-21 Accurate positioning of a timepiece bridge

Country Status (3)

Country Link
EP (1) EP2977833B1 (en)
CN (1) CN105319944B (en)
HK (1) HK1221998A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2754522C1 (en) * 2019-10-24 2021-09-02 Эта Са Мануфактюр Орложэр Сюис Device for alignment and installation, in particular for clock resonator mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3502803B1 (en) * 2017-12-19 2020-08-05 Omega SA Adjustable timepiece assembly
EP3923086A1 (en) 2020-06-12 2021-12-15 ETA SA Manufacture Horlogère Suisse Motor module for a clock movement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH106585A (en) * 1923-09-11 1924-09-16 Tavannes Watch Co Sa Pillar of clockwork movement.
US2229021A (en) * 1939-04-04 1941-01-14 William L Gilbert Clock Corp Dial back for clocks and the like
DE1275474B (en) * 1964-08-06 1968-08-14 Tissot Horlogerie Distance pillars for a clockwork frame
FR1590572A (en) * 1968-05-09 1970-04-20
ATE555427T1 (en) * 2006-05-23 2012-05-15 Manuf Claret Sa CLOCK MOVEMENT WITH A MOBILE BRIDGE
EP2458454B1 (en) * 2010-11-25 2018-05-02 ETA SA Manufacture Horlogère Suisse Device for positioning a bridge on a bearing plate
CH705087B1 (en) * 2011-06-06 2017-02-28 Hublot Sa Genève Clockwork.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2754522C1 (en) * 2019-10-24 2021-09-02 Эта Са Мануфактюр Орложэр Сюис Device for alignment and installation, in particular for clock resonator mechanism

Also Published As

Publication number Publication date
EP2977833A1 (en) 2016-01-27
CN105319944B (en) 2018-02-13
CN105319944A (en) 2016-02-10
HK1221998A1 (en) 2017-06-16

Similar Documents

Publication Publication Date Title
EP2799937B1 (en) Shock-proof bearing for an horological balance
EP2735921B1 (en) Clock escapement holder
EP1890203B1 (en) Watch case including a case back, and method of attaching a case back to a watch case
EP2290476B1 (en) Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector
EP3382472A1 (en) Guide bearing of a timepiece balance pivot
EP2977833B1 (en) Accurate positioning of a timepiece bridge
EP2976684B1 (en) Pivot for clock mechanism
EP2781967A1 (en) Timepiece hairspring
EP3032354B1 (en) System for attaching a hairspring
EP3179315B1 (en) Stud support with secure mounting
EP2790070B1 (en) Structure for a timepiece mechanism
EP4078297A1 (en) Timepiece display mechanism
CH709903A2 (en) All removable clock.
EP3032353B1 (en) Detachable stud support
EP3432081A1 (en) Timepiece assembly
EP3779606B1 (en) Self-winding watch
EP3391154B1 (en) Oscillating system for timepiece
EP3432080A1 (en) Clockwork component
EP3432082A1 (en) Regulating mechanism
EP4123394A1 (en) Ring for mechanical connection of two timepiece components
CH712197A2 (en) Friction system for a watch movement and its assembly process.
EP3923086A1 (en) Motor module for a clock movement
EP4372480A1 (en) Timepiece assembly comprising a hairspring and a pin
CH719711B1 (en) Watch assembly including a spiral spring and a pin
EP3916489A1 (en) Shock absorber spring, bearing body and bearing for timepiece

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160727

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20170125

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170907

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: ICB INGENIEURS CONSEILS EN BREVETS SA, CH

Ref country code: AT

Ref legal event code: REF

Ref document number: 960847

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014019292

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180103

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 960847

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180103

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180403

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180404

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180503

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014019292

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

26N No opposition filed

Effective date: 20181005

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602014019292

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180721

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180721

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180721

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140721

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180103

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230611

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230801

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240619

Year of fee payment: 11