EP2948820B1 - Device for guiding a clockwork arbor - Google Patents

Device for guiding a clockwork arbor Download PDF

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Publication number
EP2948820B1
EP2948820B1 EP13786230.6A EP13786230A EP2948820B1 EP 2948820 B1 EP2948820 B1 EP 2948820B1 EP 13786230 A EP13786230 A EP 13786230A EP 2948820 B1 EP2948820 B1 EP 2948820B1
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EP
European Patent Office
Prior art keywords
pivot
cabochon
respect
setting
plate
Prior art date
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EP13786230.6A
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German (de)
French (fr)
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EP2948820A1 (en
Inventor
Alain Zaugg
Lucie BROCHER
Jean-Luc Helfer
Dominique Léchot
Javier José Silva Otaiza
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Montres Breguet SA
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Montres Breguet SA
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Priority to EP13786230.6A priority Critical patent/EP2948820B1/en
Publication of EP2948820A1 publication Critical patent/EP2948820A1/en
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    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/008—Jewel bearings
    • G04B31/0082—Jewel bearings with jewel hole and cap jewel

Definitions

  • the invention relates to a device for pivoting a clockwork shaft comprising a pierced stone fixed in a kitten traversed by a pivot of said shaft, and a counter pivot stone indirectly fixed on a plate of said movement by at least said kitten.
  • said counter-pivot stone having a first bearing surface arranged to cooperate abutting with the distal end of said pivot.
  • the invention also relates to a watch movement comprising such a device.
  • the invention also relates to a watch comprising such a watch movement or / and such a device.
  • the invention relates to the field of pivotal guidance of watch-making trees for watches, and more particularly of balance shafts.
  • One of the causes of these gait variations is the difference in the behavior of the pendulum pivot, in contact with the counter-pivot stone between the two horizontal positions. This difference in behavior is caused, for example, by the different forces of the hairspring, closer to the pivot in one of the horizontal positions relative to the other, coupled with the play of the pivot in the orifice of the stone.
  • the counter pivots have the essential functions, on the one hand the reduction of the friction at the pivot, and on the other hand the good distribution of the oils.
  • the document CH 239 786 in the name of DITISHEIM describes a pendulum shaft pivoting device or the like, having a counter-pivot stone with an oblique surface at the point of contact with the end of the shaft.
  • the document CH 702 314 B1 In the name of PATEK PHILIPPE describes a bearing pad, made of a crystalline material, and a receiving hole of a pivot comprises faces which are planar, and located in crystalline planes of this crystalline material.
  • the document CH 704 770 A2 in the name of ULYSSE NARDIN describes a pivot whose free end has a contact end radially offset relative to the pivot axis, in the direction of the periphery of the pivot.
  • the document EP 2 400 355 A1 in the name of SWATCH GROUP R & D describes a shock-absorbing bearing comprising a support with a housing receiving a pivot system in which a shaft shank is inserted; the bearing comprises elastic means of amorphous material exerting an axial force on the pivot.
  • the invention proposes to carry out a shaft pivoting guide remedying the drawbacks of the prior art, by reducing the differences in the behavior of the shaft between the different positions of the watch.
  • the invention relates to a pivoting device of a clockwork movement shaft comprising a pierced stone fixed in a kitten traversed by a pivot of said shaft, and a counter-pivot stone indirectly fixed on a plate of said movement by at least said kitten, said counter pivot stone having a first bearing surface arranged to cooperate abutting with the distal end of said pivot, characterized in that said bearing surface is unique and arranged so that, in abutment position of said pivot on said counter pivot stone, the normal tangent plane common to said pivot and said first bearing surface is oblique with respect to said axis at a non-zero tilt angle, said normal and said axis together defining a counter-pivot plane having a first angular orientation at a yaw angle with respect to a reference direction of said platen.
  • said device comprises means for adjusting said yaw angle or / and said tilt angle for adjusting and adjusting the movement of said movement.
  • the invention also relates to a watch movement comprising such a device.
  • the invention also relates to a watch comprising such a watch movement or / and such a device.
  • the invention proposes to describe various means for influencing the behavior of the pivot, and, through this intermediary, the running of the watch. These means make it possible to influence or regulate this behavior in order to equalize the steps, especially in the two horizontal positions.
  • the invention relates to a device 10 for pivoting a watch movement shaft 1 1 comprising a pierced stone 3 fixed in a kitten 7.
  • This pierced stone 3 is traversed by a pivot 2 of a shaft 1 revolution D.
  • the shaft 1 is here the shaft of the sprung balance.
  • a counter-pivot stone 4 is fixed indirectly on a plate 6 of the movement 100 by at least the intermediate of the kitten 7.
  • the kitten 7 is carried by a cabochon 9, which is fixed to the plate 6.
  • this counter-pivoting stone 4 comprises a single first bearing surface 5, which is arranged to cooperate in abutment with the distal end of the pivot 2, while the cylindrical portion of the pivot 2 cooperates with the orifice 31, generally olives, that includes the pierced stone 3.
  • the bearing surface 5 is flat, as can be seen in particular on the figures 1 , 3 , 4 , 5 , 7, 8 , 9 , 13 , 15 , and 16 .
  • the device 10 according to the invention is arranged so that, in the abutment position of the pivot 2 on the counter pivot stone 4, the normal N to the tangent plane PT common to the pivot 2 and the first bearing surface 5 is oblique with respect to the axis D at a non-zero tilt angle ⁇ .
  • the device 10 comprises adjustment means 20 for influencing the displacement of the pivot 2 in the hole 31 of the pierced stone for the adjustment and adjustment of the movement step 100 in which it is incorporated, by reducing the differences between the two horizontal positions. More particularly, these adjustment means 20 are means for adjusting the yaw angle ⁇ or / and the cant angle ⁇ . These adjustment means must not be confused with resilient arms, or even springs, of certain bearings of the prior art, which are in general solely devoted to functions of holding or / and elastic return, and can not in no case constitute reproducible control means.
  • the inclination of the counter-pivot plane PCP relative to a reference direction DR, corresponding to a plate 6 receiving the device 10, a lace angle ⁇ , as visible on the figure 2 , can correct and adjust the chronometry, in particular the difference between the two horizontal positions.
  • the pierced stone 3 and the counter-pivot stone 4 are fixed together in the kitten 7, in which the counter-pivoting stone 4 is pushed towards the pierced stone 3 by at least one bumper spring 8, resting on a shoulder of the kitten 7.
  • these adjustment means 20 comprise positioning means 21, either the kitten 7 pivotally mounted relative to the plate 6, or a cabochon 9 enclosing the kitten 7 and mounted movably relative to the plate 6.
  • the mobility of the kitten 7 with respect to the plate 6 can be indirect, this is the case of the figures 12 and 15 where the kitten 7 pivots with respect to the cabochon 9 which is stationary relative to the plate 6.
  • the mobility of the cabochon 9 relative to the plate 6 is preferably restricted to a simple pivoting as visible on the figures 13 and 14 , without play or preferably with friction, or with a differential translational movement, with respect to the plate 6, of three points of its periphery, with a reduced clearance allowing only this warpage of the stone against the pivot 4 by compared to plate 6, as visible on the figure 16 .
  • the adjustment means 20 comprise angular indexing means 22 for maintaining the adjustments made on the watch.
  • angular indexing means 22 may, again, concern, or the kitten 7 pivotally mounted relative to the plate 6 as on the figure 12 where the kitten can take several discrete positions, and / or the cabochon 9 enclosing the kitten 7 and mounted mobile relative to the plate 6 as on the figure 14 where a pinion 25 allows a fine adjustment of a ring gear 94 secured to the cabochon 9.
  • the figure 12 illustrates a variant with an inclined counter-pivot stone 4 and a kitten 7 indexable in several discrete positions, so as to perform a adjust the gait, and maintain this setting.
  • the cabochon 9 comprises cavities 93, in which can be housed a finger 72 integral with the kitten 7, these cells 93 and the finger 72 together constituting the adjusting means 20 and the indexing means 22.
  • the pivot-pivoting stone 4 is hunted or indexed in the kitten 7.
  • the invention can be implemented according to many variants.
  • the device 10 comprises a cabochon 9 enclosing the kitten 7 and the bumper spring 8, and which is pivotally mounted in the plate 6.
  • This cabochon 9 has a second reference surface 91 facing to a second complementary bearing surface 61 of the plate 6.
  • the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 of the pierced stone 3 for guiding the pivot 2.
  • the kitten 7 is mounted obliquely in the cap 9 relative to the second surface reference 91 in a single, determined position.
  • the cabochon 9 is mounted aligned with the axis D of the pendulum, the kitten 7 is mounted coaxial with the cabochon 9.
  • the kitten 7 has two housings 75 and 76 inclined the value of the angle of cant e preferably neighbor 3 °, and parallel to each other: the first housing 75 for a pierced stone 3 guiding the pivot 2, the passage opening 31 thus being inclined relative to the axis D of the pivot 2; and the other housing 76 for receiving the counter-pivot stone 4, substantially parallel to the pierced stone 3, and which is held in the cabochon 9 by a bumper spring 8.
  • the end of the pivot 2 is thus in resting on a flat support surface 5 of the counter-pivot stone 4, at a slope angle identical to the angle of inclination e of the counter-pivot stone and the stone pierced in the chaton 7.
  • the cabochon 9 comprises a housing 92 for receiving the kitten 7, which has an outer surface 71 which is oblique with respect to the axis D0 of the orifice 31 in a single determined position.
  • This housing 92 is parallel to the direction of the second reference surface 91 of the cabochon 9.
  • the cabochon 9 has a housing 92 for the reception of the kitten 7, and this housing 92 is oblique with respect to the second reference surface 91 of the cabochon 9 in a single, determined position.
  • This kitten 7 has an outer surface 71 which is of revolution and coaxial with the axis D0 of the orifice 31 of the pierced stone 3.
  • the figure 9 thus shows a cabochon 9, substantially of revolution, mounted aligned with the axis D of the rocker by a cylindrical bearing surface 91 cooperating with a bore 63 of the plate 6, and which carries a housing 92 inclined the value of the angle of cant e, preferably close to 3 °, for receiving the kitten 7.
  • This kitten 7 has two housings parallel to each other, one 75 for a pierced stone 3 for guiding the pivot 2, the passage opening 31 thus being inclined relative to the axis D of the pivot 2, and the other 76 for receiving the counter-pivot stone 4, substantially parallel to the pierced stone 3, and which is held in the cabochon 9 by a bumper spring 8 , the end of the pivot 2 is thus resting on a flat bearing surface 5 of the counter-pivoting stone 4, at a slope angle equal to the angle of inclination e of the kitten 7 in the cabochon 9.
  • the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 that the pierced stone 3 has for guiding the pivot 2.
  • the kitten 7 is mounted parallel, in this cabochon 9, with respect to the second reference surface 91.
  • the second reference surface 91 is kept oblique with respect to the second complementary bearing surface 61 of the plate 6.
  • the cabochon 9 is inserted with play into a housing 64 of the plate 6, on which it is held tight by three screws 23 each having a groove 27 enclosing a flange 96 of the periphery of the cabochon 9, for adjusting both the tilt angle and the yaw angle ⁇ .
  • at least one of the screws 23 is held in abutment, by a bearing surface 241 of a flange 28 delimiting said groove 27, on a face 61 of the plate 6, to facilitate adjustment.
  • the normal of the first bearing surface 5 is oblique with respect to the axis DO of the orifice 31 of the pierced stone 3 for guiding the pivot 2, according to the angle of inclination close to 3 °.
  • the kitten 7 is mounted parallel in the cabochon 9 relative to the second reference surface 91.
  • the adjustment means 20 comprise pivoting drive means 24 of the cabochon 9.
  • the cabochon 9 carries a counter-pivot stone 4 inclined, this cabochon 9 has a peripheral toothing 94 meshing with a drive gear 25 with a screw slot 26 frictionally mounted in the plate, so as to perform with a screwdriver a setting of the step by pivoting the complete cabochon 9 and adjusting its yaw angle ⁇ , and maintain this adjustment under the action of friction.
  • the complementary bearing surface 61 of the plate 6 is a bore 63 substantially parallel to the axis D, and the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 of the pierced stone 3, and the kitten 7 is mounted obliquely in the oblique housing 92 of the cabochon 9 relative to the second reference surface 91 which is cylindrical, in a single determined position.
  • the complementary bearing surface 61 of the plate 6 is a bore 63 oblique with respect to the axis D with an inclination of the order of 3 °
  • the first bearing surface 5 is perpendicular to the axis DO of the hole 31 of the pierced stone 3, which is inclined relative to the axis of the pivot due to the inclination of the cabochon in the plate.
  • the kitten 7 is mounted coaxially in the cabochon 9 parallel to the second reference surface 91 which is cylindrical, in a single determined position.
  • the end of the pivot 2 is thus resting on a flat bearing surface 5 of the counter-pivoting stone 4, at a slope angle identical to the angle of inclination of the cabochon 9 in the plate 6.
  • the cabochon 9 and the kitten 7 are straight and coaxial, the cabochon 9 is pivotally mounted in the plate 6.
  • the normal of the first bearing surface 5 is oblique with respect to the axis DO of the orifice 31 3.
  • the kitten 7 is mounted parallel in the cap 9 relative to the second reference surface 91.
  • the bumper spring 8 cooperates with a rib 41 or a groove 42 of the surface of the stone against the pivot. 4 opposed to the bearing surface 5 of the end of the pivot 2.
  • the cabochon 9 comprises a plurality of housings 95: 95A, 95B, 95C, 95D, for receiving and locking a loop 82 or end arms 83 of the bumper spring 8, to index the kitten 7 in different positions by the lyre of the spring 8, which is itself indexed in the housing 95 in cabochon notches 9.
  • the counter-pivoting stone 4 comprises a hollow surface, advantageously off-center, in particular spherical or conical, for receiving the distal portion of the pivot 2, this off-center hollow surface having oblique edges, especially on the spiral side, for exiting the axis 1 of the vertical position, and which influences the behavior of the pivot 2 in the horizontal positions
  • the bearing surface 5 can thus be constituted, without limitation, a hollow 51 off-center with respect to the axis DO of the hole 31 of the pierced stone 3 visible on the figure 6 , or a first groove 52 V-profile centered on this axis D0 of said visible on the figure 11 , or else a second groove 53 V-profile off-center with respect to this axis OD visible on the figure 10 .
  • the device 10 comprises means of attraction or repulsion 30 of the pivot 2 in a direction substantially orthogonal to the axis D of the pivot 2.
  • these attraction or repulsion means 30 are constituted by an electret or a magnet 30A generating an electrostatic or magnetic field, and the pivot 2, being made of conductive metal material, is sensitive to this field and undergoes a force tending to flatten it. at least on an edge of the orifice 31 of the pierced stone 3; when the counter pivot stone 4 is inclined, the orientation of the field in the same plane as the normal to the bearing surface 5 further improves the regularity of the step.
  • these means of attraction or repulsion 30 are constituted by at least one elastic return means or 30B spring exerting a radial force on the pivot 2, in particular by acting directly on the axis 1 of the balance.
  • the invention also relates to a watch movement 100 comprising such a device 10.
  • the invention also relates to a watch 200 comprising such a watch movement 100 and / or such a device 10.
  • the inclination of the counter-pivoting stone 4 with respect to the axis D is favorable in itself.
  • the inclination of the complete kitten 7 can influence the position of the pivot 2 in the horizontal positions.
  • the action on the cabochon 9, or the combined action on the cabochon 9 and the kitten 7, makes it possible to equalize the steps between positions, by modifying the influences on the pivot 2.
  • the step is influenced in the corresponding horizontal positions.
  • This principle can be applied to the rotation of the stone in the bumper damper realized with the incorporation of the bumper spring 8 in the cabochon 9, the rotation of the kitten 7 and the stone against pivot 4, to the rotation of the complete damper and the rotation of the bridge.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Adornments (AREA)

Description

Domaine de l'inventionField of the invention

L'invention concerne un dispositif de pivotement d'un arbre de mouvement d'horlogerie comportant une pierre percée fixée dans un chaton traversée par un pivot dudit arbre, et une pierre contre-pivot fixée indirectement sur une platine dudit mouvement par au moins ledit chaton, ladite pierre contre-pivot comportant une première surface d'appui agencée pour coopérer en butée avec l'extrémité distale dudit pivot.The invention relates to a device for pivoting a clockwork shaft comprising a pierced stone fixed in a kitten traversed by a pivot of said shaft, and a counter pivot stone indirectly fixed on a plate of said movement by at least said kitten. said counter-pivot stone having a first bearing surface arranged to cooperate abutting with the distal end of said pivot.

L'invention concerne encore un mouvement d'horlogerie comportant un tel dispositif.The invention also relates to a watch movement comprising such a device.

L'invention concerne encore une montre comportant un tel mouvement d'horlogerie ou/et un tel dispositif.The invention also relates to a watch comprising such a watch movement or / and such a device.

L'invention concerne le domaine du guidage en pivotement des arbres d'horlogerie pour montres, et plus particulièrement des arbres de balancier.The invention relates to the field of pivotal guidance of watch-making trees for watches, and more particularly of balance shafts.

Arrière-plan de l'inventionBackground of the invention

Les montres mécaniques ont des marches relativement isochrones. Néanmoins cette relativité laisse place à une plage de marche pouvant varier de zéro à plusieurs dizaines de secondes par jour.Mechanical watches have relatively isochronous steps. Nevertheless, this relativity gives way to a range that can vary from zero to several tens of seconds per day.

Une des causes de ces variations de marche est la différence de comportement du pivot de balancier, en contact avec la pierre contre-pivot entre les deux positions horizontales. Cette différence de comportement est provoquée, par exemple, par les forces différentes du spiral, plus proche du pivot dans l'une des positions horizontales par rapport à l'autre, couplée au jeu du pivot dans l'orifice de la pierre.One of the causes of these gait variations is the difference in the behavior of the pendulum pivot, in contact with the counter-pivot stone between the two horizontal positions. This difference in behavior is caused, for example, by the different forces of the hairspring, closer to the pivot in one of the horizontal positions relative to the other, coupled with the play of the pivot in the orifice of the stone.

En effet, quand la pierre contre-pivot est parallèle à la pierre percée, dans un montage classique, le pivot a un comportement instable dans les positions horizontales, qui est dû à son pivotement sur la pierre contre-pivot horizontale et au jeu de la pierre.Indeed, when the counter-pivot stone is parallel to the pierced stone, in a conventional assembly, the pivot has an unstable behavior in the horizontal positions, which is due to its pivoting on the horizontal counter-pivot stone and the play of the Pierre.

Les contre-pivots ont pour fonctions essentielles, d'une part la diminution du frottement au niveau du pivot, et d'autre part la bonne répartition des huiles.The counter pivots have the essential functions, on the one hand the reduction of the friction at the pivot, and on the other hand the good distribution of the oils.

Le document CH 239 786 au nom de DITISHEIM décrit un dispositif de pivotement d'arbre de balancier ou similaire, comportant une pierre contre-pivot avec une surface oblique à l'endroit du contact avec l'extrémité de l'arbre.The document CH 239 786 in the name of DITISHEIM describes a pendulum shaft pivoting device or the like, having a counter-pivot stone with an oblique surface at the point of contact with the end of the shaft.

Le document CH 702 314 B1 au nom de PATEK PHILIPPE décrit un coussinet de palier, réalisé dans une matière cristalline, et dont un trou de réception d'un pivot comporte des faces qui sont planes, et situées dans des plans cristallins de cette matière cristalline.The document CH 702 314 B1 In the name of PATEK PHILIPPE describes a bearing pad, made of a crystalline material, and a receiving hole of a pivot comprises faces which are planar, and located in crystalline planes of this crystalline material.

Le document CH 704 770 A2 au nom de ULYSSE NARDIN décrit un pivot dont l'extrémité libre a une extrémité de contact déportée radialement par rapport à l'axe de pivotement, en direction de la périphérie du pivot.The document CH 704 770 A2 in the name of ULYSSE NARDIN describes a pivot whose free end has a contact end radially offset relative to the pivot axis, in the direction of the periphery of the pivot.

Le document US 2 654 990 A au nom de LE VAN, HAMILTON, décrit un palier comportant une pierre olivée et uen pierre contre-pivot, l'arbre comportant une extrémité avec un bord arrondi entourant une dépression conique pour un contact périphérique avec le contre-pivot.The document US 2,654,990 A in the name of LE VAN, HAMILTON, describes a bearing comprising an olive stone and a counter-pivot stone, the shaft having an end with a rounded edge surrounding a conical depression for peripheral contact with the counter-pivot.

Le document EP 2 400 355 A1 au nom de SWATCH GROUP R&D décrit un palier amortisseur de chocs comporatnt un support aevc un logement recevant un système pivot dans lequel est inséré un tigeron d'arbre ; le palier comporte des moyens élastiques en matériau amorphe exerçant une force axiale sur le pivot.The document EP 2 400 355 A1 in the name of SWATCH GROUP R & D describes a shock-absorbing bearing comprising a support with a housing receiving a pivot system in which a shaft shank is inserted; the bearing comprises elastic means of amorphous material exerting an axial force on the pivot.

Résumé de l'inventionSummary of the invention

L'invention se propose de réaliser un guidage en pivotement d'arbre remédiant aux inconvénients de l'art antérieur, en réduisant les écarts de comportement de l'arbre entre les différentes positions de la montre.The invention proposes to carry out a shaft pivoting guide remedying the drawbacks of the prior art, by reducing the differences in the behavior of the shaft between the different positions of the watch.

A cet effet, l'invention concerne un dispositif de pivotement d'un arbre de mouvement d'horlogerie comportant une pierre percée fixée dans un chaton traversée par un pivot dudit arbre, et une pierre contre-pivot fixée indirectement sur une platine dudit mouvement par au moins ledit chaton, ladite pierre contre-pivot comportant une première surface d'appui agencée pour coopérer en butée avec l'extrémité distale dudit pivot, caractérisé en ce que ladite surface d'appui est unique et agencée de façon à ce que, en position de butée dudit pivot sur ladite pierre contre-pivot, la normale au plan tangent commun audit pivot et à ladite première surface d'appui est oblique par rapport audit axe selon un angle de dévers non nul, ladite normale et ledit axe définissant ensemble un plan de contre-pivot ayant une première orientation angulaire selon un angle de lacet par rapport à une direction de référence de ladite platine.To this end, the invention relates to a pivoting device of a clockwork movement shaft comprising a pierced stone fixed in a kitten traversed by a pivot of said shaft, and a counter-pivot stone indirectly fixed on a plate of said movement by at least said kitten, said counter pivot stone having a first bearing surface arranged to cooperate abutting with the distal end of said pivot, characterized in that said bearing surface is unique and arranged so that, in abutment position of said pivot on said counter pivot stone, the normal tangent plane common to said pivot and said first bearing surface is oblique with respect to said axis at a non-zero tilt angle, said normal and said axis together defining a counter-pivot plane having a first angular orientation at a yaw angle with respect to a reference direction of said platen.

Selon une caractéristique de l'invention, ledit dispositif comporte des moyens de réglage dudit angle de lacet ou/et dudit angle de dévers pour le réglage et l'ajustement de la marche dudit mouvement.According to a feature of the invention, said device comprises means for adjusting said yaw angle or / and said tilt angle for adjusting and adjusting the movement of said movement.

L'invention concerne encore un mouvement d'horlogerie comportant un tel dispositif.The invention also relates to a watch movement comprising such a device.

L'invention concerne encore une montre comportant un tel mouvement d'horlogerie ou/et un tel dispositif.The invention also relates to a watch comprising such a watch movement or / and such a device.

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, tous relatifs à une application préférée mais non limitative de l'invention, relative à un dispositif de guidage en pivotement d'un axe de balancier-spiral, comportant à son extrémité un pivot pivotant dans l'orifice d'une pierre percée, ce pivot étant agencé pour prendre appui, à son extrémité distale, sur une pierre , où :

  • la figure 1 représente, de façon schématisée, partielle, et en vue en coupe dans un plan dit de contre-pivot passant par l'axe de balancier et par le point de tangence entre l'extrémité distale du pivot et la surface d'appui au niveau de la pierre contre-pivot, une des variantes de mise en oeuvre de l'invention, avec cette surface d'appui au niveau d'une pierre de contre-pivot, qui est inclinée par rapport à l'axe du pivot d'un angle dit de dévers ;
  • la figure 2 représente, de façon schématisée, partielle et en vue de dessous, une partie du dispositif de guidage en pivotement de la figure 1, où le plan de contre-pivot de la figure 1 est écarté d'une direction de référence, correspondant à une platine recevant ce dispositif, d'un angle dit de lacet ;
  • les figures 3 à 10 montrent différents modes de réalisation permettant d'influencer les déplacements du pivot dans l'orifice de la pierre percée:
  • la figure 3 représente, de façon schématisée et en coupe, une variante où un cabochon sensiblement de révolution, monté dans une platine non représentée dans l'alignement de l'axe théorique de l'axe de balancier, porte, monté coaxial un chaton ; ce chaton, monté parallèle au cabochon, porte une pierre percée de guidage du pivot selon l'axe du balancier ; le chaton comporte un logement intérieur incliné par rapport à cet axe de balancier, pour la réception de la pierre contre-pivot, dont la surface d'appui est ainsi inclinée par rapport à la pierre percée et par rapport à l'axe de balancier, avec un angle de dévers d'environ 3°; cette pierre contre-pivot est maintenue dans le cabochon par un ressort pare-chocs. Cette inclinaison permet d'influencer le déplacement du pivot dans l'orifice de pierre et permet donc d'influencer la chronométrie dans les positions horizontales de la montre;
  • la figure 4 représente, de façon schématisée et en coupe, une variante où un cabochon, sensiblement de révolution, monté dans une platine non représentée dans l'alignement de l'axe théorique de l'axe de balancier, porte, monté coaxial un chaton ; ce chaton porte une pierre percée de guidage du pivot selon l'axe du balancier ; le chaton comporte un logement intérieur pour la réception de la pierre contre-pivot, laquelle est maintenue dans le cabochon par un ressort pare-chocs, un aimant placé au voisinage du cabochon génère un champ magnétique de direction sensiblement orthogonale à l'axe du pivot, ce qui provoque une influence semblable à l'inclinaison de la pierre de la figure 3 ;
  • la figure 5 représente une configuration similaire à la figure 4, où l'aimant est remplacé par un ressort agissant sur l'axe de balancier avec un effort selon une direction sensiblement orthogonale à l'axe du pivot ce qui provoque une influence semblable à l'inclinaison de la pierre de la figure 3 ;
  • la figure 6 représente, de façon schématisée et en coupe, une variante où un cabochon sensiblement de révolution, monté dans une platine non représentée dans l'alignement de l'axe théorique de l'axe de balancier, porte, monté coaxial un chaton ; ce chaton porte une pierre percée de guidage du pivot selon l'axe du balancier ; le chaton comporte un logement intérieur pour la réception de la pierre contre-pivot, laquelle est sensiblement parallèle à la pierre percée et est maintenue dans le cabochon par un ressort pare-chocs, cette pierre contre-pivot comporte un logement creux décentré pour la réception de l'extrémité du pivot, qui porte ainsi sur une pente de ce logement constituant la surface d'appui avec un angle de dévers ;
  • la figure 7 représente, de façon schématisée et en coupe, une variante où un cabochon, sensiblement de révolution, est monté dans une platine avec une inclinaison de l'ordre de 3° par rapport à l'axe théorique de l'axe de balancier, et porte un chaton monté coaxial à ce cabochon ; ce chaton porte une pierre percée de guidage du pivot, l'orifice de passage étant incliné par rapport à l'axe du pivot du fait de l'inclinaison du cabochon dans la platine ; le chaton comporte un logement intérieur pour la réception de la pierre contre-pivot, sensiblement parallèle à la pierre percée, et qui est maintenue dans le cabochon par un ressort pare-chocs, l'extrémité du pivot est ainsi en appui sur une surface d'appui plane de la pierre contre-pivot, selon un angle de dévers identique à l'angle d'inclinaison du cabochon dans la platine ;
  • la figure 8 représente, de façon schématisée et en coupe, une variante où un cabochon, sensiblement de révolution, est monté aligné avec l'axe de balancier, et porte un chaton monté coaxial à ce cabochon ; ce chaton comporte deux logements inclinés de la valeur de l'angle de dévers, et parallèles entre eux, l'un pour une pierre percée de guidage du pivot, l'orifice de passage étant ainsi incliné par rapport à l'axe du pivot, et l'autre pour la réception de la pierre contre-pivot, sensiblement parallèle à la pierre percée, et qui est maintenue dans le cabochon par un ressort pare-chocs, l'extrémité du pivot est ainsi en appui sur une surface d'appui plane de la pierre contre-pivot, selon un angle de dévers identique à l'angle d'inclinaison de la pierre contre-pivot et de la pierre percée dans le chaton ;
  • la figure 9 représente, de façon schématisée et en coupe, une variante où un cabochon, sensiblement de révolution, est monté aligné avec l'axe de balancier, et porte un logement incliné de la valeur de l'angle de dévers pour la réception d'un chaton; ce chaton comporte deux logements parallèles entre eux, l'un pour une pierre percée de guidage du pivot, l'orifice de passage étant ainsi incliné par rapport à l'axe du pivot, et l'autre pour la réception de la pierre contre-pivot, sensiblement parallèle à la pierre percée, et qui est maintenue dans le cabochon par un ressort pare-chocs, l'extrémité du pivot est ainsi en appui sur une surface d'appui plane de la pierre contre-pivot, selon un angle de dévers identique à l'angle d'inclinaison du chaton dans le cabochon ;
  • la figure 10 est similaire à la figure 6, le logement creux et décentré est constitué par une rainure décentrée, représentée en coupe, et en vue en plan sur la figure 10A, de la surface d'appui de la pierre contre-pivot ;
  • les figures 12 à 15, comme la figure 2, montrent des moyens d'indexation s'appliquant aux moyens d'influencer la position du pivot vue sur les figures 1 et 3 à 10 ; l'action sur cette position d'incliné permet de corriger et régler la chronométrie, en particulier la différence de marche entre les deux positions horizontales :
  • la figure 11 est similaire à la figure 10, et en vue en plan sur la figure 11A, le logement creux et décentré est constitué par une rainure centrée ;
  • la figure 12 représente, en vue en plan, un dispositif selon l'invention comportant une pierre contre-pivot inclinée et un chaton indexable en plusieurs positions discrètes, de façon à effectuer un réglage de la marche, et à maintenir ce réglage ;
  • la figure 13 représente, en vue en plan, et en section par l'axe du balancier sur la figure 13A, un dispositif selon l'invention comportant un chaton incliné dans un cabochon du type de la figure 9 monté droit et à friction dans une platine et en appui sur celle-ci, ce cabochon comportant des fentes de vis pour réglage angulaire d'un angle de lacet avec un outil tel qu'un tournevis, de façon à effectuer un réglage de la marche par ajustement de cet angle de lacet, et à maintenir ce réglage sous l'action de la friction ;
  • la figure 14 représente, en vue en plan, un dispositif selon l'invention comportant un cabochon portant une pierre contre-pivot inclinée, ce cabochon comportant une denture périphérique engrenant avec un pignon de manoeuvre à fente de vis monté à friction dans la platine, de façon à effectuer avec un tournevis un réglage de la marche par pivotement du cabochon complet et réglage de son angle de lacet, et à maintenir ce réglage sous l'action de la friction ;
  • la figure 15 représente, en vue en plan, et en section par l'axe du balancier sur les deux variantes des figures 15A et 15B, un dispositif selon l'invention comportant un cabochon et un chaton droits, le chaton portant une pierre contre-pivot inclinée du type de la figure 3, le ressort pare-chocs coopère avec une nervure ou une rainure de la surface de la pierre contre-pivot opposée à la surface d'appui de l'extrémité du pivot, le chaton peut ainsi être indexé sur plusieurs positions par la lyre ;
  • la figure 16 représente, en vue en plan, et en section par l'axe du balancier sur la figure 13A, un dispositif selon l'invention comportant un cabochon avec un chaton droit comportant une pierre percée et une pierre contre-pivot parallèles, ce cabochon est inséré avec jeu dans un logement de la platine, sur laquelle il est maintenu serré par trois vis comportant chacune une gorge enserrant le pourtour de ce cabochon, ce qui permet le réglage à la fois de l'angle de dévers et de l'angle de lacet, ;
  • la figure 17 représente, sous forme d'un schéma-blocs, une montre comportant un mouvement équipé d'un dispositif selon l'invention.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, all relating to a preferred but non-limiting application of the invention, relating to a pivoting guide device. a sprung-balance shaft, having at its end a pivot pivoting in the orifice of a pierced stone, this pivot being arranged to bear, at its distal end, on a stone, where:
  • the figure 1 represents, schematically, partially, and in sectional view in a so-called counter-pivot plane passing through the balance shaft and by the point of tangency between the distal end of the pivot and the bearing surface at the level of the counter-pivot stone, one of the variants of implementation of the invention, with this bearing surface at a counter-pivot stone, which is inclined relative to the pivot axis of an angle said of cant;
  • the figure 2 represents, schematically, partially and in view from below, a portion of the pivoting guide device of the figure 1 , where the counter-pivot plane of the figure 1 is spaced from a reference direction, corresponding to a plate receiving this device, a so-called yaw angle;
  • the Figures 3 to 10 show different embodiments for influencing the movements of the pivot in the orifice of the pierced stone:
  • the figure 3 represents, schematically and in section, a variant where a cabochon substantially of revolution, mounted in a plate not shown in alignment with the theoretical axis of the balance shaft, carries a coaxial mounted kitten; this kitten, mounted parallel to the cabochon, carries a stone pierced guide the pivot along the axis of the balance; the kitten has a dwelling inclined interior with respect to this axis of balance, for receiving the counter-pivot stone, whose bearing surface is thus inclined with respect to the pierced stone and with respect to the axis of balance, with a slope angle about 3 °; this counter-pivot stone is held in the cabochon by a bumper spring. This inclination makes it possible to influence the displacement of the pivot in the stone orifice and thus makes it possible to influence the chronometry in the horizontal positions of the watch;
  • the figure 4 represents, schematically and in section, a variant where a cabochon, substantially of revolution, mounted in a plate not shown in alignment with the theoretical axis of the balance shaft, carries a coaxial mounted kitten; this kitten carries a stone pierced guide the pivot along the axis of the balance; the kitten comprises an inner housing for receiving the counter-pivot stone, which is held in the cabochon by a bumper spring, a magnet placed in the vicinity of the cabochon generates a magnetic field of direction substantially orthogonal to the axis of the pivot , which causes an influence similar to the inclination of the stone of the figure 3 ;
  • the figure 5 represents a configuration similar to the figure 4 , where the magnet is replaced by a spring acting on the balance shaft with a force in a direction substantially orthogonal to the axis of the pivot which causes an influence similar to the inclination of the stone of the figure 3 ;
  • the figure 6 represents, schematically and in section, a variant where a cabochon substantially of revolution, mounted in a plate not shown in alignment with the theoretical axis of the balance shaft, carries a coaxial mounted kitten; this kitten carries a stone pierced guide the pivot along the axis of the balance; the kitten has an inner housing for receiving the counter-pivot stone, which is substantially parallel to the pierced stone and is held in the cabochon by a bumper spring, the counter-pivot stone has a hollow housing off-center for receiving the end of the pivot, which thus bears on a slope of this housing constituting the bearing surface with a tilt angle;
  • the figure 7 represents, schematically and in section, a variant where a cabochon, substantially of revolution, is mounted in a plate with an inclination of the order of 3 ° with respect to the theoretical axis of the balance shaft, and carries a kitten mounted coaxial to this cabochon; this kitten is wearing a pierced stone guiding the pivot, the passage opening being inclined relative to the axis of the pivot due to the inclination of the cabochon in the plate; the kitten comprises an inner housing for receiving the counter-pivot stone, substantially parallel to the pierced stone, and which is held in the cabochon by a bumper spring, the end of the pivot is thus resting on a surface of flat support of the counter-pivot stone, according to a tilt angle identical to the angle of inclination of the cabochon in the plate;
  • the figure 8 represents schematically and in section, a variant where a cabochon, substantially of revolution, is mounted aligned with the balance shaft, and carries a kitten coaxially mounted to this cabochon; this kitten comprises two inclined housings of the value of the tilt angle, and parallel to each other, one for a pierced guide stone of the pivot, the passage opening thus being inclined with respect to the axis of the pivot, and the other for receiving the counter-pivot stone, substantially parallel to the pierced stone, and which is held in the cabochon by a bumper spring, the end of the pivot is thus resting on a bearing surface plane of the counter-pivot stone, according to an angle of inclination identical to the angle of inclination of the counter-pivot stone and the stone pierced in the kitten;
  • the figure 9 represents, schematically and in section, a variant where a cabochon, substantially of revolution, is mounted aligned with the balance shaft, and carries a slot inclined the value of the angle of cant for the reception of a kitten ; this kitten has two housings parallel to each other, one for a pierced guide stone of the pivot, the passage opening being thus inclined with respect to the axis of the pivot, and the other for the reception of the counter-stone. pivot, substantially parallel to the pierced stone, and which is held in the cabochon by a bumper spring, the end of the pivot is thus resting on a flat bearing surface of the stone against pivot, at an angle of cant identical to the angle of inclination of the kitten in the cabochon;
  • the figure 10 is similar to the figure 6 , the hollow and off-center housing is constituted by an off-center groove, shown in section, and in plan view on the figure 10A , of the bearing surface of the counter-pivot stone;
  • the Figures 12 to 15 , as the figure 2 , show indexing means applying to the means for influencing the position of the pivot seen on the figures 1 and 3 to 10 ; the action on this inclined position makes it possible to correct and adjust the chronometry, in particular the difference between the two horizontal positions:
  • the figure 11 is similar to the figure 10 , and in plan view on the figure 11A the hollow and off-center housing is constituted by a centered groove;
  • the figure 12 represents, in plan view, a device according to the invention comprising an inclined counter-pivot stone and an indexable kitten in several discrete positions, so as to perform a gait adjustment, and to maintain this adjustment;
  • the figure 13 represents, in plan view, and in section by the axis of the pendulum on the figure 13A , a device according to the invention comprising a kitten inclined in a cabochon of the type of the figure 9 mounted straight and friction in a plate and resting on it, this cab with screw slots for angular adjustment of a yaw angle with a tool such as a screwdriver, so as to perform a gait adjustment by adjusting this yaw angle, and maintaining this adjustment under the action of the friction;
  • the figure 14 represents, in plan view, a device according to the invention comprising a cabochon bearing an inclined counter-pivot stone, this cabochon comprising a peripheral toothing meshing with a sliding screw-operated drive gear in the plate, so as to using a screwdriver, adjust the step by pivoting the complete cabochon and adjusting its yaw angle, and maintain this adjustment under the action of the friction;
  • the figure 15 represents, in plan view, and in section by the axis of the pendulum on the two variants of Figures 15A and 15B , a device according to the invention comprising a cabochon and a right kitten, the kitten bearing a stone inclined pivot-pivot of the type of the figure 3 , the bumper spring cooperates with a rib or a groove of the surface of the counter-pivot stone opposite the bearing surface of the end of the pivot, the kitten can thus be indexed in several positions by the lyre;
  • the figure 16 represents, in plan view, and in section by the axis of the pendulum on the figure 13A , a device according to the invention comprising a cabochon with a right kitten comprising a pierced stone and a parallel counter-pivot stone, this cabochon is inserted with play in a housing of the plate, on which it is held tight by three screws each comprising a tight throat the circumference of this cabochon, which allows the adjustment of both the angle of tilt and the yaw angle,;
  • the figure 17 represents, in the form of a block diagram, a watch comprising a movement equipped with a device according to the invention.

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

L'invention se propose de décrire différents moyens permettant d'influencer le comportement du pivot, et, par cet intermédiaire, la marche de la montre. Ces moyens permettent d'influencer ou régler ce comportement afin d'égaliser les marches, notamment dans les deux positions horizontales.The invention proposes to describe various means for influencing the behavior of the pivot, and, through this intermediary, the running of the watch. These means make it possible to influence or regulate this behavior in order to equalize the steps, especially in the two horizontal positions.

Tout d'abord, des moyens permettant d'influencer le comportement du pivot de balancier en positions horizontales sont illustrés, de façon non limitative, par les figures 3 à 11. Ensuite, des moyens permettant d'égaliser les marches entre positions, en modifiant les influences sur le pivot, sont illustrés par les figures 12 à 16. Naturellement les combinaisons entre certaines de ces figures sont possibles, et l'homme du métier saura les mettre en oeuvre.Firstly, means for influencing the behavior of the rocker pivot in horizontal positions are illustrated, in a nonlimiting manner, by the Figures 3 to 11 . Then, means for equalizing the steps between positions, by modifying the influences on the pivot, are illustrated by the Figures 12 to 16 . Naturally the combinations between some of these figures are possible, and the skilled person will know how to implement them.

L'invention concerne un dispositif 10 de pivotement d'un arbre 1 de mouvement d'horlogerie 100 comportant une pierre percée 3 fixée dans un chaton 7. Cette pierre percée 3 est traversée par un pivot 2 d'un arbre 1 d'axe de révolution D. la présente description s'applique au cas préféré du guidage en pivotement d'un axe de balancier, naturellement l'invention est aussi utilisable avec profit pour le guidage d'autres arbres, tels que pivot d'ancre ou similaire,. L'arbre 1 est ici l'arbre du balancier-spiral.The invention relates to a device 10 for pivoting a watch movement shaft 1 1 comprising a pierced stone 3 fixed in a kitten 7. This pierced stone 3 is traversed by a pivot 2 of a shaft 1 revolution D. the present description applies to the preferred case of guidance pivoting a balance shaft, naturally the invention is also used with advantage for guiding other trees, such as anchor pivot or the like. The shaft 1 is here the shaft of the sprung balance.

Une pierre de contre-pivot 4 est fixée indirectement sur une platine 6 du mouvement 100 par au moins l'intermédiaire du chaton 7. Dans les réalisations illustrées, le chaton 7 est porté par un cabochon 9, lequel est fixé à la platine 6.A counter-pivot stone 4 is fixed indirectly on a plate 6 of the movement 100 by at least the intermediate of the kitten 7. In the illustrated embodiments, the kitten 7 is carried by a cabochon 9, which is fixed to the plate 6.

Selon l'invention, cette pierre contre-pivot 4 comporte une première surface d'appui 5 unique, qui est agencée pour coopérer en butée avec l'extrémité distale du pivot 2, tandis que la partie cylindrique du pivot 2 coopère avec l'orifice 31, généralement olivé, que comporte la pierre percée 3.According to the invention, this counter-pivoting stone 4 comprises a single first bearing surface 5, which is arranged to cooperate in abutment with the distal end of the pivot 2, while the cylindrical portion of the pivot 2 cooperates with the orifice 31, generally olives, that includes the pierced stone 3.

Dans une réalisation économique, la surface d'appui 5 est plane, tel que visible notamment sur les figures 1, 3, 4, 5, 7, 8, 9, 13, 15, et 16.In an economic embodiment, the bearing surface 5 is flat, as can be seen in particular on the figures 1 , 3 , 4 , 5 , 7, 8 , 9 , 13 , 15 , and 16 .

Le dispositif 10 selon l'invention est agencé de façon à ce que, en position de butée du pivot 2 sur la pierre contre-pivot 4, la normale N au plan tangent PT commun au pivot 2 et à la première surface d'appui 5 est oblique par rapport à l'axe D selon un angle de dévers θ non nul.The device 10 according to the invention is arranged so that, in the abutment position of the pivot 2 on the counter pivot stone 4, the normal N to the tangent plane PT common to the pivot 2 and the first bearing surface 5 is oblique with respect to the axis D at a non-zero tilt angle θ.

Cette disposition permet d'éviter l'inconvénient de l'art antérieur du flottement du pivot en glissement sur une pierre contre-pivot horizontale dans les limites permises par le jeu du pivot dans l'orifice de la pierre percée. En effet, le fait d'incliner la pierre contre-pivot 4 permet d'influencer la position du pivot dans les positions horizontales. Une inclinaison de l'ordre de 3° permet de ne pas perturber la lubrification et de maintenir au niveau du pivot la goutte d'huile nécessaire. Si la légère augmentation de frottement dans la position au plat, résultant de la position inclinée de la pierre contre-pivot, pénalise quelque peu le rendement, toutefois la valeur du frottement en position pendu se rapproche de celle au plat, ce qui est le but recherché. Il s'agit, en somme, non de minimiser les frottements, mais surtout de les égaliser dans les différentes positions dans l'espace de l'axe de balancier.This arrangement avoids the disadvantage of the prior art flotation of the pivot sliding on a horizontal counter-pivot stone within the limits permitted by the play of the pivot in the hole of the pierced stone. Indeed, the tilting of the counter pivot stone 4 can influence the position of the pivot in the horizontal positions. An inclination of about 3 ° makes it possible not to disturb the lubrication and to maintain at the pivot the drop of oil required. If the slight increase in friction in the flat position, resulting from the inclined position of the counter-pivot stone, slightly penalizes the yield, however the value of the friction in the hung position approaches that of the flat, which is the purpose research. It is, in short, not to minimize the friction, but especially to equalize them in the different positions in the space of the axis of balance.

Cette normale N et cet axe D définissent ensemble un plan dit de contre-pivot PCP, qui a une première orientation angulaire selon un angle de lacet α par rapport à une direction de référence DR de la platine 6.This normal N and this axis D together define a PCP counter-pivot plane, which has a first angular orientation at a yaw angle α with respect to a reference direction DR of the plate 6.

Selon l'invention, le dispositif 10 comporte des moyens de réglage 20 permettant d'influencer le déplacement du pivot 2 dans l'orifice 31 de la pierre percée pour le réglage et l'ajustement de la marche du mouvement 100 auquel il est incorporé, par une réduction des écarts de marche entre les deux positions horizontales. Plus particulièrement, ces moyens de réglage 20 sont des moyens de réglage de l'angle de lacet α ou/et de l'angle de dévers θ. Ces moyens de réglage ne doivent pas être confondus avec des bras élastiques, ou encore des ressorts, de certains paliers de l'art antérieur, qui sont en général uniquement dévolus à des fonctions de maintien ou/et de rappel élastique, et ne peuvent en aucun cas constituer des moyens de réglage reproductibles..According to the invention, the device 10 comprises adjustment means 20 for influencing the displacement of the pivot 2 in the hole 31 of the pierced stone for the adjustment and adjustment of the movement step 100 in which it is incorporated, by reducing the differences between the two horizontal positions. More particularly, these adjustment means 20 are means for adjusting the yaw angle α or / and the cant angle θ. These adjustment means must not be confused with resilient arms, or even springs, of certain bearings of the prior art, which are in general solely devoted to functions of holding or / and elastic return, and can not in no case constitute reproducible control means.

L'inclinaison de la surface d'appui 5 unique au niveau de la pierre contre-pivot 4, par rapport à l'axe DO du pivot 2, selon un angle de dévers θ, comme visible notamment sur la figure 1, permet d'influencer le déplacement du pivot 2 dans son orifice 31, ainsi que la chronométrie résultant de ce déplacement.The inclination of the single bearing surface 5 at the level of the counter pivot stone 4, with respect to the axis DO of the pivot 2, according to a tilt angle θ, as can be seen in particular in FIG. figure 1 , makes it possible to influence the displacement of the pivot 2 in its orifice 31, as well as the chronometry resulting from this displacement.

L'inclinaison du plan de contre-pivot PCP par rapport à une direction de référence DR, correspondant à une platine 6 recevant le dispositif 10, d'un angle de lacet α, tel que visible sur la figure 2, permet de corriger et régler la chronométrie, en particulier la différence de marche entre les deux positions horizontales.The inclination of the counter-pivot plane PCP relative to a reference direction DR, corresponding to a plate 6 receiving the device 10, a lace angle α, as visible on the figure 2 , can correct and adjust the chronometry, in particular the difference between the two horizontal positions.

De préférence, la pierre percée 3 et la pierre contre-pivot 4 sont fixées ensemble dans le chaton 7, dans lequel la pierre contre-pivot 4 est poussée vers la pierre percée 3 par au moins un ressort pare-chocs 8, en appui sur un épaulement du chaton 7.Preferably, the pierced stone 3 and the counter-pivot stone 4 are fixed together in the kitten 7, in which the counter-pivoting stone 4 is pushed towards the pierced stone 3 by at least one bumper spring 8, resting on a shoulder of the kitten 7.

Dans une version particulière de l'invention, dans certaines de ses variantes, ces moyens de réglage 20 comportent des moyens de positionnement 21, soit du chaton 7 monté mobile en pivotement par rapport à la platine 6, soit d'un cabochon 9 enfermant le chaton 7 et monté mobile par rapport à la platine 6.In a particular version of the invention, in some of its variants, these adjustment means 20 comprise positioning means 21, either the kitten 7 pivotally mounted relative to the plate 6, or a cabochon 9 enclosing the kitten 7 and mounted movably relative to the plate 6.

La mobilité du chaton 7 par rapport à la platine 6 peut être indirecte, c'est le cas des figures 12 et 15 où le chaton 7 pivote par rapport au cabochon 9 qui est immobile par rapport à la platine 6.The mobility of the kitten 7 with respect to the plate 6 can be indirect, this is the case of the figures 12 and 15 where the kitten 7 pivots with respect to the cabochon 9 which is stationary relative to the plate 6.

La mobilité du cabochon 9 par rapport à la platine 6 est, de préférence restreinte à un simple pivotement tel que visible sur les figures 13 et 14, sans jeu ou de préférence avec friction, ou encore à un mouvement de translation différentiel, par rapport à la platine 6, de trois points de sa périphérie, avec un jeu réduit n'autorisant que ce gauchissement de la pierre contre-pivot 4 par rapport à la platine 6, tel que visible sur la figure 16.The mobility of the cabochon 9 relative to the plate 6 is preferably restricted to a simple pivoting as visible on the figures 13 and 14 , without play or preferably with friction, or with a differential translational movement, with respect to the plate 6, of three points of its periphery, with a reduced clearance allowing only this warpage of the stone against the pivot 4 by compared to plate 6, as visible on the figure 16 .

Bien sûr, on peut encore combiner la mobilité du chaton 7 par rapport au cabochon 9, et du cabochon 9 par rapport à la platine 6, mais la simplicité des réglages s'en ressent, et le réglage du chaton 7 seul ou du cabochon 9 seul s'avère suffisant dans la plupart des cas pour équilibrer la marche entre les différentes positions.Of course, it is still possible to combine the mobility of the kitten 7 with respect to the cabochon 9, and the cabochon 9 with respect to the plate 6, but the simplicity of the settings is affected, and the setting of the kitten 7 alone or the cabochon 9 alone is sufficient in most cases to balance the march between different positions.

Avantageusement, les moyens de réglage 20 comportent des moyens d'indexage angulaire 22 pour maintenir les réglages effectués sur la montre. Ces moyens d'indexage angulaire 22 peuvent, là encore, concerner, ou le chaton 7 monté mobile en pivotement par rapport à la platine 6 comme sur la figure 12 où le chaton peut prendre plusieurs positions discrètes, ou/et le cabochon 9 enfermant le chaton 7 et monté mobile par rapport à la platine 6 comme sur la figure 14 où un pignon denté 25 permet un réglage fin d'une couronne dentée 94 solidaire du cabochon 9.Advantageously, the adjustment means 20 comprise angular indexing means 22 for maintaining the adjustments made on the watch. These angular indexing means 22 may, again, concern, or the kitten 7 pivotally mounted relative to the plate 6 as on the figure 12 where the kitten can take several discrete positions, and / or the cabochon 9 enclosing the kitten 7 and mounted mobile relative to the plate 6 as on the figure 14 where a pinion 25 allows a fine adjustment of a ring gear 94 secured to the cabochon 9.

La figure 12 illustre une variante avec une pierre contre-pivot 4 inclinée et un chaton 7 indexable en plusieurs positions discrètes, de façon à effectuer un réglage de la marche, et à maintenir ce réglage. Le cabochon 9 comporte des alvéoles 93, dans lesquelles peut se loger un doigt 72 solidaire du chaton 7, ces alvéoles 93 et ce doigt 72 constituant ensemble les moyens de réglage 20 ainsi que les moyens d'indexage 22. La pierre contre-pivot 4 est chassée ou indexée dans le chaton 7.The figure 12 illustrates a variant with an inclined counter-pivot stone 4 and a kitten 7 indexable in several discrete positions, so as to perform a adjust the gait, and maintain this setting. The cabochon 9 comprises cavities 93, in which can be housed a finger 72 integral with the kitten 7, these cells 93 and the finger 72 together constituting the adjusting means 20 and the indexing means 22. The pivot-pivoting stone 4 is hunted or indexed in the kitten 7.

Comme le montrent les figures, l'invention peut être mise en oeuvre selon de nombreuses variantes. De façon commune aux variantes illustrées, le dispositif 10 comporte un cabochon 9 enfermant le chaton 7 et le ressort pare-chocs 8, et qui est monté mobile en pivotement dans la platine 6. Ce cabochon 9 comporte une deuxième surface de référence 91 faisant face à une deuxième surface d'appui complémentaire 61 de la platine 6.As shown in the figures, the invention can be implemented according to many variants. Commonly to the illustrated variants, the device 10 comprises a cabochon 9 enclosing the kitten 7 and the bumper spring 8, and which is pivotally mounted in the plate 6. This cabochon 9 has a second reference surface 91 facing to a second complementary bearing surface 61 of the plate 6.

Dans une variante illustrée notamment sur la figure 8, la première surface d'appui 5 est perpendiculaire par rapport à l'axe DO de l'orifice 31 de la pierre percée 3 pour le guidage du pivot 2. Le chaton 7 est monté oblique dans le cabochon 9 par rapport à la deuxième surface de référence 91 dans une position unique déterminée. Sur la figure 8, le cabochon 9 est monté aligné avec l'axe D de balancier, le chaton 7 est monté coaxial à ce cabochon 9. Le chaton 7 comporte deux logements 75 et 76 inclinés de la valeur de l'angle de dévers e, de préférence voisin de 3°, et parallèles entre eux : le premier logement 75 pour une pierre percée 3 de guidage du pivot 2, l'orifice de passage 31 étant ainsi incliné par rapport à l'axe D du pivot 2 ; et l'autre logement 76 pour la réception de la pierre contre-pivot 4, sensiblement parallèle à la pierre percée 3, et qui est maintenue dans le cabochon 9 par un ressort pare-chocs 8. L'extrémité du pivot 2 est ainsi en appui sur une surface d'appui plane 5 de la pierre contre-pivot 4, selon un angle de dévers e identique à l'angle d'inclinaison e de la pierre contre-pivot et de la pierre percée dans le chaton 7.In a variant illustrated in particular on the figure 8 , the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 of the pierced stone 3 for guiding the pivot 2. The kitten 7 is mounted obliquely in the cap 9 relative to the second surface reference 91 in a single, determined position. On the figure 8 , the cabochon 9 is mounted aligned with the axis D of the pendulum, the kitten 7 is mounted coaxial with the cabochon 9. The kitten 7 has two housings 75 and 76 inclined the value of the angle of cant e preferably neighbor 3 °, and parallel to each other: the first housing 75 for a pierced stone 3 guiding the pivot 2, the passage opening 31 thus being inclined relative to the axis D of the pivot 2; and the other housing 76 for receiving the counter-pivot stone 4, substantially parallel to the pierced stone 3, and which is held in the cabochon 9 by a bumper spring 8. The end of the pivot 2 is thus in resting on a flat support surface 5 of the counter-pivot stone 4, at a slope angle identical to the angle of inclination e of the counter-pivot stone and the stone pierced in the chaton 7.

De façon plus particulière, le cabochon 9 comporte un logement 92 pour la réception du chaton 7, lequel comporte une surface externe 71 qui est oblique par rapport à l'axe D0 de l'orifice 31 dans une position unique déterminée. Ce logement 92 est parallèle à la direction de la deuxième surface de référence 91 du cabochon 9.More particularly, the cabochon 9 comprises a housing 92 for receiving the kitten 7, which has an outer surface 71 which is oblique with respect to the axis D0 of the orifice 31 in a single determined position. This housing 92 is parallel to the direction of the second reference surface 91 of the cabochon 9.

Dans une variante illustrée notamment sur les figures 9 et 13, le cabochon 9 comporte un logement 92 pour la réception du chaton 7, et ce logement 92 est oblique par rapport à la deuxième surface de référence 91 du cabochon 9 dans une position unique déterminée. Ce chaton 7 comporte une surface externe 71 qui est de révolution et coaxiale à l'axe D0 de l'orifice 31 de la pierre percée 3.In a variant illustrated in particular on figures 9 and 13 , the cabochon 9 has a housing 92 for the reception of the kitten 7, and this housing 92 is oblique with respect to the second reference surface 91 of the cabochon 9 in a single, determined position. This kitten 7 has an outer surface 71 which is of revolution and coaxial with the axis D0 of the orifice 31 of the pierced stone 3.

La figure 9 montre ainsi un cabochon 9, sensiblement de révolution, monté aligné avec l'axe D de balancier par une portée cylindrique 91 coopérant avec un alésage 63 de la platine 6, et qui porte un logement 92 incliné de la valeur de l'angle de dévers e, de préférence voisin de 3°, pour la réception du chaton 7. Ce chaton 7 comporte deux logements parallèles entre eux, l'un 75 pour une pierre percée 3 de guidage du pivot 2, l'orifice de passage 31 étant ainsi incliné par rapport à l'axe D du pivot 2, et l'autre 76 pour la réception de la pierre contre-pivot 4, sensiblement parallèle à la pierre percée 3, et qui est maintenue dans le cabochon 9 par un ressort pare-chocs 8, l'extrémité du pivot 2 est ainsi en appui sur une surface d'appui 5 plane de la pierre contre-pivot 4, selon un angle de dévers e identique à l'angle d'inclinaison e du chaton 7 dans le cabochon 9. Le même montage est visible sur la figure 13 qui représente, un tel chaton 7 incliné dans un cabochon 9 monté droit et à friction dans une platine 6 et en appui sur celle-ci, ce cabochon 9 comportant des fentes de vis 93 pour réglage angulaire d'un angle de lacet α avec un outil tel qu'un tournevis, de façon à effectuer un réglage de la marche par ajustement de cet angle de lacet α, et à maintenir ce réglage sous l'action de la friction.The figure 9 thus shows a cabochon 9, substantially of revolution, mounted aligned with the axis D of the rocker by a cylindrical bearing surface 91 cooperating with a bore 63 of the plate 6, and which carries a housing 92 inclined the value of the angle of cant e, preferably close to 3 °, for receiving the kitten 7. This kitten 7 has two housings parallel to each other, one 75 for a pierced stone 3 for guiding the pivot 2, the passage opening 31 thus being inclined relative to the axis D of the pivot 2, and the other 76 for receiving the counter-pivot stone 4, substantially parallel to the pierced stone 3, and which is held in the cabochon 9 by a bumper spring 8 , the end of the pivot 2 is thus resting on a flat bearing surface 5 of the counter-pivoting stone 4, at a slope angle equal to the angle of inclination e of the kitten 7 in the cabochon 9. The same montage is visible on the figure 13 which represents, such a kitten 7 inclined in a cabochon 9 mounted straight and friction in a plate 6 and resting on it, this cabochon 9 having screw slots 93 for angular adjustment of a lace angle α with a tool such as a screwdriver, so as to adjust the step by adjustment of this angle of lace α, and maintain this adjustment under the action of friction.

Dans une variante illustrée notamment sur la figure 16, la première surface d'appui 5 est perpendiculaire par rapport à l'axe DO de l'orifice 31 que comporte la pierre percée 3 pour le guidage du pivot 2. Le chaton 7 est monté parallèle, dans ce cabochon 9, par rapport à la deuxième surface de référence 91. Et la deuxième surface de référence 91 est maintenue oblique par rapport à la deuxième surface d'appui complémentaire 61 de la platine 6. Plus particulièrement, le cabochon 9 est inséré avec jeu dans un logement 64 de la platine 6, sur laquelle il est maintenu serré par trois vis 23 comportant chacune une gorge 27 enserrant un flasque 96 du pourtour du cabochon 9, pour le réglage à la fois de l'angle de dévers e et de l'angle de lacet α. De préférence, tel qu'illustré, au moins une des vis 23 est maintenue en appui, par une portée 241 d'une collerette 28 délimitant cette gorge 27, sur une face 61 de la platine 6, pour faciliter le réglage.In a variant illustrated in particular on the figure 16 , the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 that the pierced stone 3 has for guiding the pivot 2. The kitten 7 is mounted parallel, in this cabochon 9, with respect to the second reference surface 91. And the second reference surface 91 is kept oblique with respect to the second complementary bearing surface 61 of the plate 6. More particularly, the cabochon 9 is inserted with play into a housing 64 of the plate 6, on which it is held tight by three screws 23 each having a groove 27 enclosing a flange 96 of the periphery of the cabochon 9, for adjusting both the tilt angle and the yaw angle α. Preferably, as illustrated, at least one of the screws 23 is held in abutment, by a bearing surface 241 of a flange 28 delimiting said groove 27, on a face 61 of the plate 6, to facilitate adjustment.

Dans une variante illustrée notamment sur la figure 3, la normale de la première surface d'appui 5 est oblique par rapport à l'axe DO de l'orifice 31 de la pierre percée 3 pour le guidage du pivot 2, selon l'angle de dévers e voisin de 3°. Le chaton 7 est monté parallèle dans le cabochon 9 par rapport à la deuxième surface de référence 91.In a variant illustrated in particular on the figure 3 , the normal of the first bearing surface 5 is oblique with respect to the axis DO of the orifice 31 of the pierced stone 3 for guiding the pivot 2, according to the angle of inclination close to 3 °. The kitten 7 is mounted parallel in the cabochon 9 relative to the second reference surface 91.

Dans une variante illustrée notamment sur la figure 14, les moyens de réglage 20 comportent des moyens d'entraînement en pivotement 24 du cabochon 9. Sur la figure 14, le cabochon 9 porte une pierre contre-pivot 4 inclinée, ce cabochon 9 comporte une denture périphérique 94 engrenant avec un pignon de manoeuvre 25 à fente de vis 26 monté à friction dans la platine, de façon à effectuer avec un tournevis un réglage de la marche par pivotement du cabochon 9 complet et réglage de son angle de lacet α, et à maintenir ce réglage sous l'action de la friction.In a variant illustrated in particular on the figure 14 , the adjustment means 20 comprise pivoting drive means 24 of the cabochon 9. On the figure 14 , the cabochon 9 carries a counter-pivot stone 4 inclined, this cabochon 9 has a peripheral toothing 94 meshing with a drive gear 25 with a screw slot 26 frictionally mounted in the plate, so as to perform with a screwdriver a setting of the step by pivoting the complete cabochon 9 and adjusting its yaw angle α, and maintain this adjustment under the action of friction.

Dans une variante illustrée notamment sur la figure 9, la surface d'appui complémentaire 61 de la platine 6 est un alésage 63 sensiblement parallèle à l'axe D, et la première surface d'appui 5 est perpendiculaire à l'axe DO de l'orifice 31 de la pierre percée 3, et le chaton 7 est monté oblique dans le logement oblique 92 du cabochon 9 par rapport à la deuxième surface de référence 91 qui est cylindrique, dans une position unique déterminée.In a variant illustrated in particular on the figure 9 the complementary bearing surface 61 of the plate 6 is a bore 63 substantially parallel to the axis D, and the first bearing surface 5 is perpendicular to the axis DO of the orifice 31 of the pierced stone 3, and the kitten 7 is mounted obliquely in the oblique housing 92 of the cabochon 9 relative to the second reference surface 91 which is cylindrical, in a single determined position.

Dans une variante illustrée notamment sur la figure 7, la surface d'appui complémentaire 61 de la platine 6 est un alésage 63 oblique par rapport à l'axe D avec une inclinaison de l'ordre de 3°, et la première surface d'appui 5 est perpendiculaire par rapport à l'axe DO de l'orifice 31 de la pierre percée 3, lequel est incliné par rapport à l'axe du pivot du fait de l'inclinaison du cabochon dans la platine. Le chaton 7 est monté coaxial dans le cabochon 9 parallèle par rapport à la deuxième surface de référence 91 qui est cylindrique, dans une position unique déterminée. L'extrémité du pivot 2 est ainsi en appui sur une surface d'appui 5 plane de la pierre contre-pivot 4, selon un angle de dévers e identique à l'angle d'inclinaison du cabochon 9 dans la platine 6.In a variant illustrated in particular on the figure 7 , the complementary bearing surface 61 of the plate 6 is a bore 63 oblique with respect to the axis D with an inclination of the order of 3 °, and the first bearing surface 5 is perpendicular to the axis DO of the hole 31 of the pierced stone 3, which is inclined relative to the axis of the pivot due to the inclination of the cabochon in the plate. The kitten 7 is mounted coaxially in the cabochon 9 parallel to the second reference surface 91 which is cylindrical, in a single determined position. The end of the pivot 2 is thus resting on a flat bearing surface 5 of the counter-pivoting stone 4, at a slope angle identical to the angle of inclination of the cabochon 9 in the plate 6.

Dans une variante illustrée notamment sur la figure 15, le cabochon 9 et le chaton 7 sont droits et coaxiaux, le cabochon 9 est monté mobile en pivotement dans la platine 6. La normale de la première surface d'appui 5 est oblique par rapport à l'axe DO de l'orifice 31 de la pierre percée 3. Le chaton 7 est monté parallèle dans le cabochon 9 par rapport à la deuxième surface de référence 91. Le ressort pare-chocs 8 coopère avec une nervure 41 ou une rainure 42 de la surface de la pierre contre-pivot 4 opposée à la surface d'appui 5 de l'extrémité du pivot 2. Le cabochon 9 comporte une pluralité de logements 95 : 95A, 95B, 95C, 95D, pour la réception et le blocage d'une boucle 82 ou des bras d'extrémité 83 du ressort pare-chocs 8, pour indexer le chaton 7 en différentes positions par la lyre du ressort 8, qui est elle-même indexée dans les logements 95 en encoches du cabochon 9.In a variant illustrated in particular on the figure 15 , the cabochon 9 and the kitten 7 are straight and coaxial, the cabochon 9 is pivotally mounted in the plate 6. The normal of the first bearing surface 5 is oblique with respect to the axis DO of the orifice 31 3. The kitten 7 is mounted parallel in the cap 9 relative to the second reference surface 91. The bumper spring 8 cooperates with a rib 41 or a groove 42 of the surface of the stone against the pivot. 4 opposed to the bearing surface 5 of the end of the pivot 2. The cabochon 9 comprises a plurality of housings 95: 95A, 95B, 95C, 95D, for receiving and locking a loop 82 or end arms 83 of the bumper spring 8, to index the kitten 7 in different positions by the lyre of the spring 8, which is itself indexed in the housing 95 in cabochon notches 9.

Dans certaines variantes, la pierre contre-pivot 4 comporte une surface creuse, avantageusement décentrée, notamment sphérique ou conique, pour la réception de la partie distale du pivot 2, cette surface creuse décentrée comportant des bords obliques, surtout du côté spiral, pour sortir l'axe 1 de la position verticale, et qui influence le comportement du pivot 2 dans les positions horizontales La surface d'appui 5 peut ainsi être constituée, de façon non limitative, d'un creux 51 décentré par rapport à l'axe DO de l'orifice 31 de la pierre percée 3 visible sur la figure 6, ou d'une première rainure 52 à profil en vé centrée sur cet axe D0 dudit visible sur la figure 11, ou encore d'une deuxième rainure 53 à profil en vé décentrée par rapport à cet axe DO visible sur la figure 10.In certain variants, the counter-pivoting stone 4 comprises a hollow surface, advantageously off-center, in particular spherical or conical, for receiving the distal portion of the pivot 2, this off-center hollow surface having oblique edges, especially on the spiral side, for exiting the axis 1 of the vertical position, and which influences the behavior of the pivot 2 in the horizontal positions The bearing surface 5 can thus be constituted, without limitation, a hollow 51 off-center with respect to the axis DO of the hole 31 of the pierced stone 3 visible on the figure 6 , or a first groove 52 V-profile centered on this axis D0 of said visible on the figure 11 , or else a second groove 53 V-profile off-center with respect to this axis OD visible on the figure 10 .

Dans une réalisation particulière, le dispositif 10 comporte des moyens d'attraction ou de répulsion 30 du pivot 2 selon une direction sensiblement orthogonale à l'axe D du pivot 2. La mise en oeuvre de moyens d'attraction ou de répulsion 30 du pivot 2, selon une direction sensiblement orthogonale à l'axe D du pivot 2, influence la position du pivot dans les positions horizontales.
Dans une première variante visible sur la figure 4, ces moyens d'attraction ou de répulsion 30 sont constitués par un électret ou un aimant 30A générant un champ électrostatique ou magnétique, et le pivot 2, étant en matériau métallique conducteur, est sensible à ce champ et subit une force tendant à le plaquer au moins sur un bord de l'orifice 31 de la pierre percée 3 ; quand la pierre contre-pivot 4 est inclinée, l'orientation du champ dans le même plan que la normale à la surface d'appui 5 améliore encore la régularité de la marche.In a particular embodiment, the device 10 comprises means of attraction or repulsion 30 of the pivot 2 in a direction substantially orthogonal to the axis D of the pivot 2. The implementation of means of attraction or repulsion 30 of the pivot 2, in a direction substantially orthogonal to the axis D of the pivot 2, influences the position of the pivot in the horizontal positions.
In a first variant visible on the figure 4 these attraction or repulsion means 30 are constituted by an electret or a magnet 30A generating an electrostatic or magnetic field, and the pivot 2, being made of conductive metal material, is sensitive to this field and undergoes a force tending to flatten it. at least on an edge of the orifice 31 of the pierced stone 3; when the counter pivot stone 4 is inclined, the orientation of the field in the same plane as the normal to the bearing surface 5 further improves the regularity of the step.

Dans une deuxième variante visible sur la figure 5, ces moyens d'attraction ou de répulsion 30 sont constitués par au moins un moyen de rappel élastique ou ressort 30B exerçant un effort radial sur le pivot 2, notamment en agissant directement sur l'axe 1 du balancier.In a second variant visible on the figure 5 these means of attraction or repulsion 30 are constituted by at least one elastic return means or 30B spring exerting a radial force on the pivot 2, in particular by acting directly on the axis 1 of the balance.

L'invention concerne encore un mouvement d'horlogerie 100 comportant un tel dispositif 10.The invention also relates to a watch movement 100 comprising such a device 10.

L'invention concerne encore une montre 200 comportant un tel mouvement d'horlogerie 100 ou/et un tel dispositif 10.The invention also relates to a watch 200 comprising such a watch movement 100 and / or such a device 10.

En somme, l'inclinaison de la pierre contre-pivot 4 par rapport à l'axe D est favorable en soi. L'inclinaison du chaton 7 complet permet d'influencer la position du pivot 2 dans les positions horizontales. En complément, l'action sur le cabochon 9, ou l'action combinée sur le cabochon 9 et sur le chaton 7, permet d'égaliser les marches entre positions, en modifiant les influences sur le pivot 2.In sum, the inclination of the counter-pivoting stone 4 with respect to the axis D is favorable in itself. The inclination of the complete kitten 7 can influence the position of the pivot 2 in the horizontal positions. In addition, the action on the cabochon 9, or the combined action on the cabochon 9 and the kitten 7, makes it possible to equalize the steps between positions, by modifying the influences on the pivot 2.

Sur la base des pierres contre-pivot 4 inclinées et des pierres contre-pivot 4 avec des logements creux, en faisant tourner la pierre contre-pivot 4 sus ou sous par rapport au balancier, on influence la marche dans les positions horizontales correspondantes.On the basis of the counter-pivoting stones 4 inclined and counter-pivoting stones 4 with hollow housing, by rotating the counter-pivot stone 4 above or below relative to the balance, the step is influenced in the corresponding horizontal positions.

Ce principe peut être appliqué à la rotation de la pierre dans l'amortisseur pare-chocs réalisé avec l'incorporation du ressort pare-chocs 8 dans le cabochon 9, à la rotation du chaton 7 et de la pierre contre-pivot 4, à la rotation de l'amortisseur complet et à la rotation du pont.This principle can be applied to the rotation of the stone in the bumper damper realized with the incorporation of the bumper spring 8 in the cabochon 9, the rotation of the kitten 7 and the stone against pivot 4, to the rotation of the complete damper and the rotation of the bridge.

Toutes les solutions exposées sont applicables à des amortisseurs avec chatons classiques, ou avec chatons suspendus, ou semi-suspendus.All solutions shown are applicable to shock absorbers with traditional kittens, or with suspended kittens, or semi-suspended.

Les avantages découlant des caractéristiques décrites ci-dessus permettent la maîtrise des écarts de marche des montres entre les positions.The advantages deriving from the features described above make it possible to control the variations in the running of the watches between the positions.

Claims (20)

  1. Device (10) for pivoting an arbor (1) of a timepiece movement (100) including a jewel hole (3) fixed in a setting (7) traversed by a pivot (2) of said arbor (1) having an axis of revolution (D), and an endstone (4) indirectly fixed to a plate (6) of said movement (100) by at least said setting (7), said endstone (4) including a first bearing surface (5) arranged to cooperate in abutment with the distal end of said pivot (2), wherein said bearing surface (5) is unique, and arranged so that, in the position of abutment of said pivot (2) on said endstone (4), the normal (N) to the tangent plane (PT) common to said pivot (2) and to said first bearing surface (5) is oblique with respect to said axis (D) at a non-zero angle of cant (e), said normal (N) and said axis (D) defining together an endstone plane (PCP) having a first angular orientation at a yaw angle (α) with respect to a reference direction (DR) of said plate (6), characterized in that said device (10) includes means (20) for adjustment of said yaw angle (α) and/or of said angle of cant (e) to regulate and adjust the rate of said movement (100).
  2. Device (10) according to claim 1, characterized in that said unique bearing surface (5) is planar.
  3. Device (10) according to claim 1 or 2, characterized in that said jewel hole (3) and said endstone (4) are secured together in said setting (7) in which said endstone (4) is pressed towards said jewel hole (3) by a shock absorber spring (8), and in that said adjustment means (20) include positioning means (21), either for said setting (7), mounted to pivot with respect to said plate (6), and/or for a cabochon (9) enclosing said setting (7) and movably mounted with respect to said plate (6).
  4. Device (10) according to any of the preceding claims, characterized in that said jewel hole (3) and said endstone (4) are secured together in said setting (7) in which said endstone (4) is pressed towards said jewel hole (3) by a shock absorber spring (8), and in that said adjustment means (20) include angular indexing means (22), either for said setting (7), mounted to pivot with respect to said plate (6), and/or for a cabochon (9) enclosing said setting (7) and movably mounted with respect to said plate (6).
  5. Device (10) according to claim 3, characterized in that the device includes a cabochon (9) enclosing said setting (7), and said shock absorber spring (8) and mounted to pivot in said plate (6), said cabochon (9) including a second reference surface (91) facing a second complementary bearing surface (61) of said plate (6), in that said first bearing surface (5) is perpendicular with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for guiding said pivot (2), and in that said setting (7) is mounted obliquely in said cabochon (9) with respect to said second reference surface (91) in a single determined position.
  6. Device (10) according to claim 5, characterized in that said cabochon (9) includes a housing (92) for receiving said setting (7), and in that said housing (92) is oblique with respect to said second reference surface (91) in a single determined position, said setting (7) including an external surface (71) of revolution about and coaxial to said axis (DO) of said orifice (31).
  7. Device (10) according to claim 5, characterized in that said cabochon (9) includes a housing (92) for receiving said setting (7), in that said setting (7) includes an external surface (71) which is oblique with respect to said axis (DO) of said orifice (31) in a single determined position, and in that said housing (92) is parallel to the direction of said second reference surface (91).
  8. Device (10) according to claim 3, characterized in that the device includes a cabochon (9) enclosing said setting (7), and said shock absorber spring (8) and mounted to pivot in said plate (6), said cabochon (9) including a second reference surface (91) facing a second complementary bearing surface (61) of said plate (6), in that said first bearing surface (5) is perpendicular with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for guiding said pivot (2), and in that said setting (7) is mounted parallel in said cabochon (9) with respect to said second reference surface (91) and in that said second reference surface (91) of said cabochon is held obliquely with respect to said second complementary bearing surface (61) of said plate (6).
  9. Device (10) according to claim 8, characterized in that said second reference surface (91) of said cabochon is held obliquely with respect to said second complementary bearing surface (61) of said plate (6), said cabochon (9) being inserted with play in a housing (64) of said plate (6), on which said cabochon is held tightly by three screws (23) each including a groove (27) gripping a flange (96) at the periphery of said cabochon (9), to adjust both said angle of cant (e) and said yaw angle (α).
  10. Device (10) according to claim 3, characterized in that the device includes a cabochon (9) enclosing said setting (7), and said shock absorber spring (8) and mounted to pivot in said plate (6), said cabochon (9) including a second reference surface (91) facing a second complementary bearing surface (61) of said plate (6), in that the normal of said first bearing surface (5) is oblique with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for guiding said pivot (2), and in that said setting (7) is mounted parallel in said cabochon (9) with respect to said second reference surface (91).
  11. Device (10) according to claim 3, characterized in that the device includes a cabochon (9) enclosing said setting (7) and said shock absorber spring (8) and mounted to pivot in said plate (6), said cabochon (9) including a reference surface (91) facing a complementary bearing surface (61) of said plate (6), and in that said adjustment means (20) include means (24) for driving the pivoting of said cabochon (9).
  12. Device (10) according to any of claims 7 to 11, characterized in that said complementary bearing surface (61) of said plate (6) is a bore (63) substantially parallel to said axis (D) of said pivot (2), and in that said device (10) includes a cabochon (9) enclosing said setting (7), and said shock absorber spring (8) and mounted to pivot in said plate (6), in that said first bearing surface (5) is perpendicular with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for the guiding of said pivot (2), and in that said setting (7) is mounted obliquely in said cabochon (9) with respect to said second reference surface (91), which is cylindrical, in a single determined position.
  13. Device (10) according to any of claims 7 to 11, characterized in that said complementary bearing surface (61) of said plate (6) is a bore (63) oblique with respect to said axis (D) of said pivot (2), and in that said device (10) includes a cabochon (9) enclosing said setting (7), and said shock absorber spring (8) and mounted to pivot in said plate (6), in that said first bearing surface (5) is perpendicular with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for the guiding of said pivot (2), and in that said setting (7) is mounted parallel in said cabochon (9) with respect to said second reference surface (91), which is cylindrical, in a single determined position.
  14. Device (10) according to any of claims 7 to 11, characterized in that said cabochon (9) and said setting (7) are straight and coaxial, said cabochon (9) is mounted to pivot in said plate (6), said cabochon (9) including a second reference surface (91) facing a second complementary bearing surface (61) of said plate (6), in that the normal of said first bearing surface (5) is oblique with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for the guiding of said pivot (2), and in that said setting (7) is mounted parallel in said cabochon (9) with respect to said second reference surface (91), and in that said shock absorber spring (8) cooperates with a rib (41) or a groove (42) of the surface of said endstone (4) opposite to said bearing surface (5) of the end of said pivot (2), said cabochon (9) including a plurality of housings (95) for a loop (82) or of end arms (83) of said shock absorber spring (8) to index said setting (7) in different positions.
  15. Device (10) according to any of claims 1 to 14, characterized in that said bearing surface (5) is formed of a hollow (51) which is off-centre with respect to the axis (DO) of an orifice (31) comprised in said jewel hole (3) for the guiding of said pivot (2), or of a first groove (52) having a V-shaped profile centred on said axis (DO) of said orifice (31) or of a second groove with a V-shaped profile, which is off-centre with respect to said axis (DO) of said orifice (31).
  16. Device (10) according to any of the preceding claims, characterized in that the device includes means (30) for the attraction or repulsion of said pivot (2) in a substantially orthogonal direction to said axis (D) of said pivot (2).
  17. Device (10) according to claim 16, characterized in that said attraction or repulsion means (30) are formed by an electret or a magnet (30A) generating an electrostatic or magnetic field, and in that said pivot (2) is made of conductive metallic material.
  18. Device (10) according to claim 16, characterized in that said attraction or repulsion means (30) are formed by at least one elastic return means or spring (30B) exerting a radial force on said pivot (2).
  19. Timepiece movement (100) including a device (10) according to any of the preceding claims.
  20. Watch (200) including a timepiece movement (100) according to claim 19 and/or a device (10) according to any of claims 1 to 18.
EP13786230.6A 2013-01-22 2013-11-04 Device for guiding a clockwork arbor Active EP2948820B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13786230.6A EP2948820B1 (en) 2013-01-22 2013-11-04 Device for guiding a clockwork arbor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13152192.4A EP2757426B1 (en) 2013-01-22 2013-01-22 Device for guiding a clockwork arbor
PCT/EP2013/072882 WO2014114377A1 (en) 2013-01-22 2013-11-04 Device for guiding a timepiece arbor
EP13786230.6A EP2948820B1 (en) 2013-01-22 2013-11-04 Device for guiding a clockwork arbor

Publications (2)

Publication Number Publication Date
EP2948820A1 EP2948820A1 (en) 2015-12-02
EP2948820B1 true EP2948820B1 (en) 2017-10-18

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP13152192.4A Active EP2757426B1 (en) 2013-01-22 2013-01-22 Device for guiding a clockwork arbor
EP13786230.6A Active EP2948820B1 (en) 2013-01-22 2013-11-04 Device for guiding a clockwork arbor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13152192.4A Active EP2757426B1 (en) 2013-01-22 2013-01-22 Device for guiding a clockwork arbor

Country Status (6)

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EP (2) EP2757426B1 (en)
JP (1) JP6031199B2 (en)
CN (1) CN104937502B (en)
DE (1) DE102014000579B4 (en)
HK (1) HK1215312A1 (en)
WO (1) WO2014114377A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711681A2 (en) * 2015-10-26 2017-04-28 Eta Sa Mft Horlogère Suisse Flexible pivoting guide for watchmakers.
EP3382472A1 (en) 2017-03-30 2018-10-03 Rolex Sa Guide bearing of a timepiece balance pivot
US20220291634A1 (en) * 2019-08-19 2022-09-15 Rolex Sa Method for manufacturing a timepiece bearing
CN111075898B (en) * 2019-12-25 2021-10-26 中国科学院微小卫星创新研究院 Low-damping rotating device and operation method thereof
EP3929666A1 (en) * 2020-06-26 2021-12-29 ETA SA Manufacture Horlogère Suisse Rotating mobile system of a clock movement

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CA225409A (en) * 1921-10-06 1922-10-31 Brun Joseph Watch
CH168494A (en) * 1933-03-02 1934-04-15 Marti Fritz Bearings for shafts, especially for those in clockworks.
CH239786A (en) 1944-02-04 1945-11-15 Ditisheim & Cie Fabriques Vulc Device for pivoting a shaft such as the balance shaft of a clockwork movement, an escapement holder or a counter, for example.
US2654990A (en) * 1951-05-16 1953-10-13 Hamilton Watch Co Equitorque bearing
DE1008209B (en) * 1952-01-14 1957-05-09 Hans Grenda Shock-proof balance bearings on watches
DE928400C (en) * 1952-02-12 1955-05-31 Ver Uhrenfabriken Elastic journal bearing for clockworks
WO2006067597A2 (en) * 2004-12-22 2006-06-29 Raoul Allaman Wristwatch regulating member
CH698826B1 (en) * 2006-03-29 2009-11-13 Girard Perregaux Sa Movement for a timepiece with retrograde.
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CH702314B1 (en) * 2007-02-16 2011-06-15 Patek Philippe Sa Geneve Bush for mechanical timepiece i.e. watch, has bearing provided with hole to receive pivot, where bush is formed of monocrystalline material, where faces of hole are plane and are situated for planes of monocrystalline material
EP1986059A1 (en) * 2007-04-26 2008-10-29 ETA SA Manufacture Horlogère Suisse Pivoting device for an arbor inside a timepiece
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CH704770B1 (en) * 2011-04-06 2013-09-13 Manuf Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle Sa Pivot to watch and timepiece component comprising component.

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Also Published As

Publication number Publication date
CN104937502A (en) 2015-09-23
DE102014000579B4 (en) 2020-08-06
DE102014000579A1 (en) 2014-07-24
WO2014114377A1 (en) 2014-07-31
EP2757426B1 (en) 2017-11-08
EP2757426A1 (en) 2014-07-23
JP6031199B2 (en) 2016-11-24
JP2016503899A (en) 2016-02-08
EP2948820A1 (en) 2015-12-02
CN104937502B (en) 2017-07-28
HK1215312A1 (en) 2016-08-19

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