EP4286962A1 - Timepiece regulating member comprising a regulator assembly provided with locking means - Google Patents

Timepiece regulating member comprising a regulator assembly provided with locking means Download PDF

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Publication number
EP4286962A1
EP4286962A1 EP23167376.5A EP23167376A EP4286962A1 EP 4286962 A1 EP4286962 A1 EP 4286962A1 EP 23167376 A EP23167376 A EP 23167376A EP 4286962 A1 EP4286962 A1 EP 4286962A1
Authority
EP
European Patent Office
Prior art keywords
regulating member
eyebolt
member according
locking
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23167376.5A
Other languages
German (de)
French (fr)
Inventor
Julien Christan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA Manufacture Horlogere Suisse SA
Original Assignee
ETA Manufacture Horlogere Suisse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP22177059.7A external-priority patent/EP4286960A1/en
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to US18/315,523 priority Critical patent/US20230393526A1/en
Priority to CN202321304309.0U priority patent/CN220064632U/en
Priority to CN202310606348.4A priority patent/CN117170208A/en
Priority to JP2023088507A priority patent/JP2023178244A/en
Priority to KR1020230070362A priority patent/KR20230167736A/en
Publication of EP4286962A1 publication Critical patent/EP4286962A1/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/006—Mechanisms for setting frequency by adjusting the devices fixed on the balance
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring

Definitions

  • the invention relates to the field of watchmaking, and more particularly to the field of mechanical watchmaking, where the regulation of the driving energy is provided by a regulating organ.
  • the invention relates, more precisely, to a regulating member provided with a precision racket system, a clock movement comprising such a regulating member, as well as a timepiece comprising such a clock movement.
  • balance-spring system which includes a flywheel. inertia called balance wheel, associated with a spring in the form of a ribbon wound into a spiral, called hairspring.
  • the hairspring is fixed on a shaft which rotates with the balance wheel; through an external end, the hairspring is fixed on a pin mounted on a pin holder which is itself secured to a fixed bridge (or cock).
  • the rotation of the balance wheel is maintained - and its oscillations counted - by an escapement mechanism comprising an anchor driven by a low amplitude oscillating movement, provided with two pallets which engage the teeth of an escape wheel.
  • an escapement mechanism comprising an anchor driven by a low amplitude oscillating movement, provided with two pallets which engage the teeth of an escape wheel.
  • the escape wheel is subjected to a step-by-step rotational movement whose frequency is determined by the oscillation frequency of the pallet, itself aligned with the oscillation frequency of the sprung balance.
  • the oscillation frequency is approximately 4 Hz, or approximately 28,800 vibrations per hour (A/h).
  • An objective of good watchmakers is to ensure isochronism and regularity of the oscillations (or constancy of the rate) of the balance wheel.
  • this racket system is fixed in rotation relative to the axis of the hairspring.
  • the assembly comprising the bridge, the racket system, the key, the eyebolt holder, the eyebolt, the shaft, the spring and the balance wheel, is commonly referred to as a “regulating organ”.
  • regulating organs are proposed by the European patent EP3304215 and by the European patent EP 2 876 504 , both in the name of the ETA watch manufacturer.
  • racket systems comprising a pin holder to which an external end of the hairspring is fixed, and in which the racket system key leaves some play to allow the hairspring to move between the two stops.
  • chronometric properties notably anisochronism, are very sensitive to racket key play, even though this game is difficult to master precisely.
  • the stops are adjustable to tighten the hairspring in order to eliminate play, particularly during operation of the hairspring.
  • we start by adjusting the rate by moving the racket key then we tighten the hairspring with the key.
  • tightening the hairspring with a racket key risks constraining it and creating chronometric faults, in particular by off-centering the turns.
  • removing the play also modifies the rate, and once the hairspring is tightened, we do not can no longer move the racket key along the hairspring to finish finely adjusting the rate.
  • spiral springs have an integrated adjuster.
  • the rate is not adjusted by modifying the effective length of the spiral spring, but by applying a force or a torque to an elastic element arranged in series with the spiral. It is thus possible to modify the stiffness of the elastic element and consequently of the spiral spring as a whole. Adjusting the stiffness of the spiral spring makes it possible to adjust the operation of the regulating organ.
  • Such a spiral spring provided with an elastic element is for example described in the patent application EP4009115 .
  • the aim of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a racket system compatible with this type of adjustment device.
  • the invention relates to a regulating member for a clock movement comprising an inertial mass, for example a balance wheel, a spiral spring, and a racket system for adjusting the operation of the spiral spring, the racket system comprising a bolt holder comprising a first part and a second part, the first part being movable relative to the second part to be able to adjust the operation of the regulating member.
  • the invention is remarkable in that the regulating member comprises locking means configured to lock the second part of the eyebolt holder in positioning relative to a plate of the movement.
  • the invention it is possible to lock the second part of the eyebolt holder after adjusting the mark, and thus avoid adjusting it, for example when the first part is actuated to adjust the operation of the regulating member.
  • the locking means comprise an eccentric mounted on a balance bridge of the regulating member.
  • the second part comprises a protrusion having the shape of an arc of a circle cooperating with the eccentric.
  • the locking means comprise a locking plate and a locking screw for assembling the locking plate on the second part and locking its position.
  • the locking plate has a shape cooperating on one side with a balance bridge of the regulating member, and on the other side with a bearing of the regulating member to lock the second part.
  • the locking screw is arranged to pass through the locking plate to be screwed into a balance bridge of the regulating member.
  • the racket system comprises a spring, exerting a force between the first part and the second part to hold the arm of the first part against the cam.
  • the spiral spring comprises a wound ribbon and means for adjusting the stiffness of the spiral spring provided with an elastic element arranged in series with the wound ribbon, the eyebolt holder being mechanically linked to the elastic element.
  • the adjustment means comprise prestressing means for applying a variable force or torque to the flexible element.
  • the first part comprises a first eyebolt and the second part a second eyebolt, the elastic element and the prestressing means being arranged between the first eyebolt and the second eyebolt, the first eyebolt being mobile relative to the second eyebolt to actuate the preloading means, the movement of the first eyebolt modifying the stiffness of the spiral spring.
  • the prestressing means comprise a lever connected to the flexible element, the first eyebolt being secured to a free end of the lever.
  • the prestressing means comprise a semi-rigid structure arranged in parallel with the flexible element, the lever being connected to the semi-rigid structure.
  • the flexible element is linked to a rigid support, the second stud being integral with the rigid support.
  • the first part and the second part are superimposed.
  • the first part is movable in rotation relative to the second part.
  • the invention also relates to a clock movement comprising such a regulating member.
  • the invention also relates to a timepiece, for example a watch, comprising such a clockwork movement.
  • THE figures 1 and 2 show a schematic representation of a first embodiment of a regulating member 1 arranged in a clock movement 10.
  • the clock movement 10 comprises a plate 21, a regulating member provided with an inertial mass, and an element elastic return of the inertial mass configured to make it oscillate.
  • the regulating member 1 further comprises a racket system 20, an annular balance 23 as inertial mass, a balance shaft 24, a spiral spring 25 as an elastic return element, and a balance bridge 22.
  • the plate 21 is provided with a housing 26 to receive the regulating member 1, in which are superimposed, here from bottom to top, the balance 23, the spiral spring 25, the balance bridge 22 and the racket system 20 .
  • the balance shaft 24 is centered in the housing 26 and passes through the center of the balance 23, the balance spring 25 and the balance bridge 22.
  • the balance shaft 24 is held by two anti-shock bearings 28 arranged at the two ends of the balance shaft 24.
  • a first bearing is arranged at the bottom of the housing 26, and the second bearing 28 is arranged above the housing 26, and is held by the balance bridge 22, the balance bridge 22 crossing the top of the housing 26 passing through the central axis of the housing 26.
  • the balance bridge 22 is provided with a hole, here through, in which the second bearing 28 is held.
  • the racket system 20 is mounted on the balance bridge 22 and is arranged, in this embodiment, on the central axis of the housing 26.
  • the spiral spring 25 preferably extends substantially in a plane.
  • the spiral spring 25 comprises a flexible ribbon 2 wound on itself in several turns, the ribbon 2 having a predefined stiffness.
  • the internal end 9 of the ribbon 2 comes from material or is assembled to a support 3, generally called a ferrule.
  • the support 3 has a substantially triangular shape, and is slipped around the shaft of the balance 24.
  • the spiral spring 25 further comprises means for adjusting its stiffness.
  • the adjustment means are in particular operable by a user when the regulating member is mounted on the plate of the clock movement.
  • the adjustment means comprise a flexible element 5 arranged in series with the ribbon 2, the flexible element 5 connecting one end 4, 9 of said ribbon 2 to a rigid support 17, and secured to one of the ends 4, 9 of the ribbon 2
  • the flexible element 5 is integral with the external end 4 of the ribbon 2.
  • the elastic element 5 is a different element from the ribbon 2.
  • the flexible element 5 adds additional stiffness to that of the ribbon 2.
  • the flexible element 5 preferably has a stiffness greater than that of the ribbon 2.
  • the flexible element 5 is here arranged in the extension of the ribbon 2.
  • the adjustment means and the ribbon 2 are in one piece, or even made of the same material, for example silicon.
  • the flexible element 5 of the spiral spring 25 comprises a pivot with uncrossed flexible blades.
  • the pivot comprises two uncrossed flexible blades 11, 12 and a rigid part 18.
  • the flexible blades 11, 12 are joined, on the one hand laterally to a rigid support 17, and on the other hand to the rigid part 18 in bringing one closer to the other.
  • the flexible blades 11, 12 move away from the rigid part 18 to the rigid support 17.
  • the external end 4 of the ribbon 2 is joined to the rigid part 18.
  • the rigid support 17 is immobile relative to the rigid part 18. to the plate 21.
  • the rigid support 17 has an L shape, a first branch 46 of the L serving as a connection with the flexible blades 11, 12, the second branch 47 of the L being oriented on the side opposite the pivot with uncrossed blades to be able to be assembled with the clock movement 10.
  • the means for adjusting the spiral spring 25 further comprise prestressing means 6 for applying a variable force or torque to the flexible element 5.
  • prestressing means 6 for applying a variable force or torque to the flexible element 5.
  • the prestressing means 6 comprise a secondary flexible blade 19, arranged on an opposite side of the rigid part 18 in the extension of the pivot with uncrossed blades.
  • the secondary flexible blade 19 is arranged tangentially to the ribbon 2, at the external end 4.
  • the secondary flexible blade 19 is connected at the other end to a curved lever 14 bypassing the ribbon 2.
  • the lever 14 is connected, in addition to the secondary flexible blade 19, to a semi-rigid structure 27 linked to the rigid support 17.
  • the semi-rigid structure 27 is partially deformed when the lever 14 is actuated by force or torque.
  • the force or torque is exerted on the free end 15 of the lever 14.
  • the lever 14 of the preloading means 6 transmits the force or torque to the flexible element 5 via the secondary flexible blade 19 and of the semi-rigid structure 27, so as to modify the stiffness of the spiral spring 25.
  • the regulating member comprises a particular racket system 20 according to the invention.
  • the racket system 20 is provided with a eyebolt holder 31 in two parts, a first part 32 and a second part 33.
  • the first part 32 of the eyebolt holder 31 suspends the first eyebolt 34, while a second part 33 of the eyebolt holder 31 is equipped with the second eyebolt 35.
  • the eyebolt holder 31 is mechanically linked to the elastic element 5, but it does not block the ribbon 2.
  • the first part 32 of the eyebolt holder 31 is arranged partly above the second part 33 of the eyebolt holder 31, which is in contact with the balance bridge 22.
  • the two parts of the eyebolt holder 31 are held and positioned by the shock absorber 28.
  • the racket system 20 comprises two eccentrics 36, 37.
  • the first eccentric 36 is mounted on the second part 33 of the eyebolt holder 31 and allows angular adjustment between the two parts of the eyebolt holder 31, which makes it possible to adjust the step .
  • the regulating member 1 further comprises locking means configured to lock the second part 33 of the eyebolt holder 31 in a positioning, here angular, relative to the plate 21 of the movement.
  • the locking means include the second eccentric 37.
  • the second eccentric 37 is mounted on the balance bridge 22 and makes it possible to adjust the angular position of the eyebolt holder 31 relative to the plate 21, which makes it possible to adjust the mark.
  • each part 32, 33 surround the second bearing 28.
  • each part 32, 33 comprises a central ring 38, 39 arranged around the second bearing 28, the two central rings 38, 39 being superimposed.
  • the first part 32 comprises two protrusions 41, 42 extending radially from the central ring 38, a first protuberance 41 holding the first eyebolt 34 downwards in the housing 26 using a first screw 74, the second protuberance 42 having the shape of an arc of a circle cooperating with the first eccentric 36.
  • the second part 33 comprises three protuberances 43, 44, 45 extending from the central ring 39.
  • a first protuberance 43 holds the second stud 35 down in the housing 26 using a second screw 75, a second protuberance 44 extending around the first eccentric 36, and the third protuberance 45 having the shape of an arc of a circle cooperating with the second eccentric 37.
  • first eyebolt 34 and the second eyebolt 35 are for example arranged substantially symmetrically with respect to the balance shaft 24.
  • the first eyebolt 34 cooperates with the free end 15 of the lever 14, and the second eyebolt 35 cooperates with the second branch 47 of the rigid support 17.
  • the prestressing means 6 and the elastic element 5 are supported by the system of racket 20 from which they are suspended.
  • the two eyebolts 34, 35 are arranged on either side of the prestressing means 6 and the elastic element 5.
  • the two eyebolts 34, 35 are rigidly linked to the lever 14 and to the rigid support 17.
  • the first 34 and the second eyebolt 35 are respectively secured to the lever 14 by the free end 15 and to the rigid support 17 by the second branch 47.
  • the assembly of the eyebolts and the spiral spring 25 is for example carried out by gluing, brazing , welding, by deformation of metallic glass, or by mechanical fixing.
  • the first eyebolt 34 is movable relative to the second eyebolt 35.
  • the first part 32 is movable relative to the second part 33.
  • the first part 32 is movable in rotation around the second bearing 28.
  • the first eyebolt 34 moves with the first part 32, the first eyebolt 34 being movable in rotation around the second bearing 28.
  • the first eyebolt 34 can for example be moved over an angular range of 20°, or even 10°.
  • the movement of the first eyebolt 34 relative to the second eyebolt 35 modifies the stiffness of the elastic element 5, because the movement exerts a more or less significant force or torque on the lever 14 of the prestressing means 6, so that the stiffness of the elastic element 5 varies, and thus the stiffness of the entire spiral spring 25.
  • the racket system 20 thus makes it possible to adjust the operation of the regulating member 1.
  • the racket system 20 makes it possible to modify the position of the first eyebolt 34 relative to the second eyebolt 35 thanks to the second protuberance 42 in the form of an arc of a circle of the first part 32 and to the first eccentric 36.
  • arc of a circle has a diameter barely smaller than the head of the first eccentric 36, so that the movement of the first eccentric 36 causes the movement of the second protuberance 42, and therefore of the first part 32 relative to the second part 33 circularly around the second bearing 28, while the second part 33 remains in position, when the first part 32 is actuated .
  • the second protuberance 42 in the form of an arc of a circle moves circularly around the second bearing 28.
  • the first part 32 moves relative to the second part 33, and consequently, the first pin 34 moves relative to the second pin 35 to modify the force or the torque applied to the preloading means 6 of the spiral spring 25.
  • the absence of play between the eccentrics 36, 37 and the arcs of circle 42, 45 allows an adjustment without hysteresis.
  • Adjustment marks 29 are arranged on the second protuberance 42 in the shape of an arc of a circle around the first eccentric 36.
  • the first eccentric 36 is oriented according to a preferred mark.
  • the racket system 20 is configured to adjust the operation of the regulating member 1 with a resolution less than or equal to 1 second per day, preferably less than or equal to 0.5 seconds per day, or even less than or equal to 0.1 second per day.
  • the racket system 20 is calibrated so that its actuation allows such a resolution.
  • the configuration of the regulating member 1 makes it possible to achieve such precision.
  • the adjustment marks 29 correspond to the resolution.
  • the difference between two consecutive marks corresponds to 1 second, 0.5 seconds, or even 0.1 seconds per day.
  • the characteristics of the regulating member 40 are substantially identical to the first embodiment, except for the adjustment of the racket system 60.
  • the first part 52 of the racket system 60 comprises an arm 63 extending radially outwards from the first part 52 in the same plan.
  • the second part 53 does not include the protuberance in the shape of an arc of a circle.
  • the racket system 60 comprises a cam 55 movable in rotation in place of the first eccentric.
  • the cam 55 cooperates with the arm 63 of the first part 52 to rotate it around the second bearing 28.
  • the end 56 of the arm 63 is preferably constantly in contact with the cam 55, so that the rotation of the cam 55 exerts a movement on the arm 63 according to the angular position of the cam 55.
  • the first part 52 of the racket system 60 moves in a manner similar to the first embodiment.
  • Such a racket system 60 equipped with a cam 55 makes it possible to vary the stiffness of the spiral spring 25 with linearity.
  • the racket system 60 comprises a spring 57 exerting a restoring force on the first part 52.
  • the spring 57 has substantially a U shape surrounding a screw of locking 77, a first end 58 of the U being assembled to the second part 53 of the racket system 20, and a second end 59 of the U being retained by a retaining hook 61 arranged on the first part 52.
  • the spring 57 is arranged on the second part of the eyebolt holder 31 symmetrically of the cam 55 with respect to the second bearing 28.
  • the spring 57 exerts a restoring force on the two parts 52, 53 of the racket system 60, the restoring force having the function of constantly maintaining the arm 63 of the first part 52 in contact with the cam 55.
  • the first part 52 rotates to move the first eyebolt 34 relative to the second eyebolt 35, while undergoing a restoring force exerted by the spring 57, to allow contact of the arm 63 of the first part 52 against the cam 55, in particular when the peripheral wall 64 of the cam 55 moves away from the arm 63.
  • the racket system 60 is configured to adjust the operation of the regulating member 40 with a resolution less than or equal to 1 second per day, preferably less than or equal to 0.5 seconds per day, or even less than or equal to 0.1 seconds per day.
  • the configuration of the regulating member 40 makes it possible to achieve such precision.
  • the regulating member 40 further comprises locking means configured to lock the second part 53 of the eyebolt holder 51 in a position relative to the balance bridge 22 of the movement.
  • the locking means include a locking plate 62 and a locking screw 77 for assembling the locking plate 62 on the second part 53 and locking its position.
  • the locking plate has a shape cooperating on one side with a balance bridge 72 and on the other side with the second bearing 28.
  • the locking screw 77 passes through the locking plate 62 to be screwed into the bridge of balancer 72 disposed below the locking plate 62.
  • the locking plate 62 exerts a force at least in part on the second part 53 of the eyebolt holder 51, at the level of a shoe 78 of the first end 58 of the U of the spring 57, the shoe resting on the second part 53 of the eyebolt holder 51.
  • Adjustment marks 49 are also arranged on the cam 55.
  • the cam 55 is moved, for example by means of an adjustment button (not shown on the figures 4 and 5 ), placed on cam 55, and which can be rotated.
  • the cam 55 is oriented according to a preferred reference.
  • the adjustment marks 49 correspond to the resolution.
  • the difference between two consecutive marks makes it possible to modify the step by one second, 0.5 seconds, or even 0.1 seconds per day.
  • the resolution of the adjustment marks 49 is 0.1 second.
  • the eyebolt holder 51 is a variant of the second embodiment, in which the second part 53 comprises on one side an elbow arm 70, and on the other side a pair of fingers 71, as well as a through orifice 68 noticeably circular in the middle.
  • the function of the bent arm 70 is to cooperate with the locking plate 62.
  • the function of the pair of fingers 71 is to maintain the axis of the cam 55 and to rest on the balance bridge 72 of the movement.
  • the through hole 68 makes it possible to insert a shockproof bearing 28 of the balance, around which the eyebolt holder 51 is mounted and maintained.
  • the through orifice 68 is opened by a slot 69 to provide flexibility to a segment 73 bordering the orifice 68.
  • the bearing 28 can be clipped and held in the orifice 68. Thanks to this flexibility, the segment 73 can move aside to introduce the bearing 28 into the orifice 68, and exert sufficient force to maintain it.
  • the shapes of the orifice 68 and the anti-shock bearing 28 are configured to cooperate together, the shape of the bearing 28 preferably being slightly greater than the shape of the orifice 68.
  • the geometry of the orifice 68 makes it possible to guide the eyebolt carrier 51 in rotation.
  • the flexible segment 73 makes it possible to guide the eyebolt carrier 51 in rotation around the shock absorber bearing while maintaining the concentricity of the balance axis (not shown in the figures).
  • a rotary adjustment knob 65 is mounted on the cam 55, the knob 65 comprising peripheral adjustment marks 66, the adjustment marks 66 being in accordance with the invention.
  • FIG 8 shows how the locking means block the second part 53 of the eyebolt holder 51 on the balance bridge 72.
  • the locking plate 62 presses on the bent arm 70 to pinch it against the balance bridge 72.
  • the locking screw 77 passes through the locking plate 62 and passes inside the bent arm 70 to reach the balance bridge 72 located at -below.
  • the second part 53 of the eyebolt holder 51 is sandwiched between the locking plate 62 and the balance bridge 72.
  • the locking plate 62 retains the spring 57.

Abstract

L'invention se rapporte à un organe réglant (40) pour mouvement d'horlogerie comprenant une masse inertielle, par exemple un balancier (23), un ressort-spiral (25), et un système de raquetterie (60) pour ajuster la marche du ressort-spiral (25), le système de raquetterie (60) comprenant un porte-pitons (51) comprenant une première partie (52) et une deuxième partie (53), la première partie (52) étant mobile par rapport à la deuxième partie (53), caractérisé en ce que l'organe réglant (40) comprend des moyens de verrouillage configurés pour bloquer la deuxième partie (33) du porte-pitons (51) dans un positionnement par rapport à une platine (21) du mouvement.The invention relates to a regulating member (40) for a watch movement comprising an inertial mass, for example a balance wheel (23), a spiral spring (25), and a racket system (60) for adjusting the rate. of the spiral spring (25), the racket system (60) comprising a bolt holder (51) comprising a first part (52) and a second part (53), the first part (52) being movable relative to the second part (53), characterized in that the regulating member (40) comprises locking means configured to block the second part (33) of the eyebolt holder (51) in positioning relative to a plate (21) of the movement.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention a trait au domaine de l'horlogerie, et plus particulièrement au domaine de l'horlogerie mécanique, où la régulation de l'énergie motrice est fournie par un organe réglant. L'invention concerne, plus précisément, un organe réglant muni d'un système de raquetterie de précision, un mouvement d'horlogerie comprenant un tel organe réglant, ainsi qu'une pièce d'horlogerie comprenant un tel mouvement d'horlogerie.The invention relates to the field of watchmaking, and more particularly to the field of mechanical watchmaking, where the regulation of the driving energy is provided by a regulating organ. The invention relates, more precisely, to a regulating member provided with a precision racket system, a clock movement comprising such a regulating member, as well as a timepiece comprising such a clock movement.

Arrière-plan technologiqueTechnology background

Dans la plupart des montres mécaniques, l'énergie nécessaire à la rotation des aiguilles (par ex. des aiguilles indicatrices des minutes et des heures) est accumulée dans un barillet, puis dispensée par un système balancier-spiral, qui comprend un volant d'inertie appelé balancier, associé à un ressort sous forme d'un ruban enroulé en spirale, appelé spiral.In most mechanical watches, the energy required to rotate the hands (e.g. minute and hour hands) is accumulated in a barrel, then released by a balance-spring system, which includes a flywheel. inertia called balance wheel, associated with a spring in the form of a ribbon wound into a spiral, called hairspring.

Par une extrémité interne, le spiral est fixé sur un arbre solidaire en rotation du balancier ; par une extrémité externe, le spiral est fixé sur un piton monté sur un porte-pitons lui-même solidaire d'un pont (ou coq) fixe.Through an internal end, the hairspring is fixed on a shaft which rotates with the balance wheel; through an external end, the hairspring is fixed on a pin mounted on a pin holder which is itself secured to a fixed bridge (or cock).

La rotation du balancier est entretenue - et ses oscillations comptées - par un mécanisme d'échappement comprenant une ancre animée d'un mouvement oscillant de faible amplitude, pourvue de deux palettes qui attaquent les dents d'une roue d'échappement. Ainsi attaquée, la roue d'échappement se voit imposer un mouvement de rotation pas-à-pas dont la fréquence est déterminée par la fréquence d'oscillation de l'ancre, elle-même calée sur la fréquence d'oscillation du balancier-spiral).The rotation of the balance wheel is maintained - and its oscillations counted - by an escapement mechanism comprising an anchor driven by a low amplitude oscillating movement, provided with two pallets which engage the teeth of an escape wheel. Thus attacked, the escape wheel is subjected to a step-by-step rotational movement whose frequency is determined by the oscillation frequency of the pallet, itself aligned with the oscillation frequency of the sprung balance. ).

Dans un mécanisme d'échappement traditionnel, la fréquence d'oscillation est d'environ 4 Hz, soit environ 28 800 alternances par heure (A/h). Un objectif des bons horlogers est d'assurer l'isochronisme et la régularité des oscillations (ou constance de la marche) du balancier.In a traditional escapement mechanism, the oscillation frequency is approximately 4 Hz, or approximately 28,800 vibrations per hour (A/h). An objective of good watchmakers is to ensure isochronism and regularity of the oscillations (or constancy of the rate) of the balance wheel.

Il est connu de régler la marche du balancier en ajustant la longueur active du spiral, définie comme la longueur curviligne entre son extrémité interne et un point de comptage, localisé au voisinage de l'extrémité externe du spiral et généralement défini par une paire de butées portées par une clé montée sur un système de raquetterie.It is known to adjust the rate of the balance by adjusting the active length of the hairspring, defined as the curvilinear length between its internal end and a counting point, located in the vicinity of the external end of the hairspring and generally defined by a pair of stops carried by a key mounted on a racket system.

En fonctionnement, ce système de raquetterie est fixe en rotation par rapport à l'axe du spiral. Cependant, il est possible, par une intervention manuelle, d'en régler finement la position angulaire, par ex. par pivotement, au moyen d'un tournevis, d'un excentrique agissant sur le système de raquetterie à la manière d'une came.In operation, this racket system is fixed in rotation relative to the axis of the hairspring. However, it is possible, through manual intervention, to finely adjust the angular position, e.g. by pivoting, using a screwdriver, an eccentric acting on the racket system in the manner of a cam.

L'ensemble comprenant le pont, le système de raquetterie, la clé, le porte-pitons, le piton, l'arbre, le ressort et le balancier, est couramment dénommé « organe réglant ». Des exemples d'organes réglants sont proposés par le brevet européen EP3304215 et par le brevet européen EP 2 876 504 , tous deux au nom de la manufacture horlogère ETA.The assembly comprising the bridge, the racket system, the key, the eyebolt holder, the eyebolt, the shaft, the spring and the balance wheel, is commonly referred to as a “regulating organ”. Examples of regulating organs are proposed by the European patent EP3304215 and by the European patent EP 2 876 504 , both in the name of the ETA watch manufacturer.

Il existe des systèmes de raquetterie comportant un porte-piton auquel une extrémité externe du spiral est fixée, et dont la clé de système de raquetterie laisse un jeu pour permettre au spiral de se déplacer entre les deux butées. Cependant, les propriétés chronométriques, notamment l'anisochronisme, sont très sensibles au jeu à la clé de raquette, alors que ce jeu est difficile à maîtriser précisément.There are racket systems comprising a pin holder to which an external end of the hairspring is fixed, and in which the racket system key leaves some play to allow the hairspring to move between the two stops. However, chronometric properties, notably anisochronism, are very sensitive to racket key play, even though this game is difficult to master precisely.

Dans certains dispositifs, les butées sont réglables pour venir serrer le spiral afin d'éliminer le jeu, en particulier pendant le fonctionnement du spiral. Dans ce cas, on commence par régler la marche par le déplacement de la clé de raquette, puis on serre le spiral à la clé. Mais serrer le spiral à la clé de raquette risque de le contraindre, et de créer des défauts chronométriques, notamment par décentrage des spires. De plus, le fait de supprimer le jeu modifie aussi la marche, et une fois le spiral serré, on ne peut plus déplacer la clé de raquette le long du spiral pour finir de régler finement la marche.In certain devices, the stops are adjustable to tighten the hairspring in order to eliminate play, particularly during operation of the hairspring. In this case, we start by adjusting the rate by moving the racket key, then we tighten the hairspring with the key. But tightening the hairspring with a racket key risks constraining it and creating chronometric faults, in particular by off-centering the turns. In addition, removing the play also modifies the rate, and once the hairspring is tightened, we do not can no longer move the racket key along the hairspring to finish finely adjusting the rate.

D'autres ressorts-spiraux comportent un dispositif de réglage intégré. Dans ces ressorts-spiraux, on ne règle pas la marche en modifiant la longueur effective du ressort-spiral, mais en appliquant une force ou un couple sur un élément élastique agencé en série du spiral. On peut ainsi modifier la raideur de l'élément élastique et par conséquent du ressort-spiral dans son ensemble. L'ajustement de la raideur du ressort-spiral permet de régler la marche de l'organe réglant. Un tel ressort-spiral muni d'un élément élastique est par exemple décrit dans la demande de brevet EP4009115 .Other spiral springs have an integrated adjuster. In these spiral springs, the rate is not adjusted by modifying the effective length of the spiral spring, but by applying a force or a torque to an elastic element arranged in series with the spiral. It is thus possible to modify the stiffness of the elastic element and consequently of the spiral spring as a whole. Adjusting the stiffness of the spiral spring makes it possible to adjust the operation of the regulating organ. Such a spiral spring provided with an elastic element is for example described in the patent application EP4009115 .

Cependant, dans ces cas, les systèmes de raquetterie usuels ne peuvent être utilisés, car ils ne sont pas compatibles avec le dispositif de réglage du ressort-spiral. De plus, comme il s'agit de régler très finement la marche, il est essentiel qu'il n'y ait aucun jeu entre le spiral et ses zones d'interaction avec la raquetterie. En effet, dans le cas contraire, on risquerait de modifier la marche en cas de choc, si le spiral ne se repositionne pas exactement de la même manière après le choc.However, in these cases, usual racket systems cannot be used, as they are not compatible with the spiral spring adjustment device. Furthermore, as it involves very finely adjusting the rate, it is essential that there is no play between the hairspring and its areas of interaction with the racket. Indeed, otherwise, there would be a risk of modifying the action in the event of an impact, if the hairspring does not reposition itself in exactly the same way after the impact.

En outre, il est nécessaire de pourvoir régler la marche de l'organe réglant, sans changer le repère. En effet, lorsqu'on monte l'organe réglant dans le mouvement, on règle le repère pour que le balancier coopère correctement avec l'ancre. Une fois le repère réglé, on veut éviter de le dérégler, en particulier quand on ajuste la marche de l'organe réglant.In addition, it is necessary to be able to adjust the operation of the regulating organ, without changing the mark. Indeed, when we mount the regulating organ in the movement, we adjust the mark so that the balance wheel cooperates correctly with the pallet. Once the mark has been adjusted, we want to avoid disturbing it, in particular when we adjust the operation of the regulating organ.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant un système de raquetterie compatible avec ce type de dispositif de réglage.The aim of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a racket system compatible with this type of adjustment device.

A cet effet, l'invention se rapporte à un organe réglant pour mouvement d'horlogerie comprenant une masse inertielle, par exemple un balancier, un ressort-spiral, et un système de raquetterie pour ajuster la marche du ressort-spiral, le système de raquetterie comprenant un porte-pitons comprenant une première partie et une deuxième partie, la première partie étant mobile par rapport à la deuxième partie pour pouvoir régler la marche de l'organe réglant.For this purpose, the invention relates to a regulating member for a clock movement comprising an inertial mass, for example a balance wheel, a spiral spring, and a racket system for adjusting the operation of the spiral spring, the racket system comprising a bolt holder comprising a first part and a second part, the first part being movable relative to the second part to be able to adjust the operation of the regulating member.

L'invention est remarquable en ce que l'organe réglant comprend des moyens de verrouillage configurés pour bloquer la deuxième partie du porte-pitons dans un positionnement par rapport à une platine du mouvement.The invention is remarkable in that the regulating member comprises locking means configured to lock the second part of the eyebolt holder in positioning relative to a plate of the movement.

Grâce à l'invention, on peut verrouiller la deuxième partie du porte-pitons après le réglage du repère, et ainsi éviter de le dérégler, par exemple lorsqu'on actionne la première partie pour ajuster la marche de l'organe réglant.Thanks to the invention, it is possible to lock the second part of the eyebolt holder after adjusting the mark, and thus avoid adjusting it, for example when the first part is actuated to adjust the operation of the regulating member.

Selon une forme de réalisation particulière de l'invention, les moyens de verrouillage comprennent un excentrique monté sur un pont de balancier de l'organe réglant.According to a particular embodiment of the invention, the locking means comprise an eccentric mounted on a balance bridge of the regulating member.

Selon une forme de réalisation particulière de l'invention, la deuxième partie comprend une protubérance ayant une forme d'arc de cercle coopérant avec l'excentrique.According to a particular embodiment of the invention, the second part comprises a protrusion having the shape of an arc of a circle cooperating with the eccentric.

Selon une forme de réalisation particulière de l'invention, les moyens de verrouillage comprennent une plaque de verrouillage et une vis de verrouillage pour assembler la plaque de verrouillage sur la deuxième partie et verrouiller sa position.According to a particular embodiment of the invention, the locking means comprise a locking plate and a locking screw for assembling the locking plate on the second part and locking its position.

Selon une forme de réalisation particulière de l'invention, la plaque de verrouillage a une forme coopérant d'un côté avec un pont de balancier de l'organe réglant, et de l'autre côté avec un palier de l'organe réglant pour bloquer la deuxième partie.According to a particular embodiment of the invention, the locking plate has a shape cooperating on one side with a balance bridge of the regulating member, and on the other side with a bearing of the regulating member to lock the second part.

Selon une forme de réalisation particulière de l'invention la vis de verrouillage est agencée pour traverser la plaque de verrouillage pour être vissée dans un pont de balancier de l'organe réglant.According to a particular embodiment of the invention, the locking screw is arranged to pass through the locking plate to be screwed into a balance bridge of the regulating member.

Selon une forme de réalisation particulière de l'invention, le système de raquetterie comprend un ressort, exerçant une force entre la première partie et la deuxième partie pour maintenir le bras de la première partie contre la came.According to a particular embodiment of the invention, the racket system comprises a spring, exerting a force between the first part and the second part to hold the arm of the first part against the cam.

Selon une forme de réalisation particulière de l'invention, le ressort-spiral comprend un ruban enroulé et des moyens d'ajustement de la raideur du ressort-spiral dotés d'un élément élastique agencé en série du ruban enroulé, le porte-pitons étant lié mécaniquement à l'élément élastique.According to a particular embodiment of the invention, the spiral spring comprises a wound ribbon and means for adjusting the stiffness of the spiral spring provided with an elastic element arranged in series with the wound ribbon, the eyebolt holder being mechanically linked to the elastic element.

Selon une forme de réalisation particulière de l'invention, les moyens d'ajustement comprennent des moyens de précontrainte pour appliquer une force ou un couple variable sur l'élément flexible.According to a particular embodiment of the invention, the adjustment means comprise prestressing means for applying a variable force or torque to the flexible element.

Selon une forme de réalisation particulière de l'invention, la première partie comporte un premier piton et la deuxième partie un deuxième piton, l'élément élastique et les moyens de précontrainte étant agencés entre le premier piton et le deuxième piton, le premier piton étant mobile par rapport au deuxième piton pour actionner les moyens de précontrainte, le déplacement du premier piton modifiant la raideur du ressort-spiral.According to a particular embodiment of the invention, the first part comprises a first eyebolt and the second part a second eyebolt, the elastic element and the prestressing means being arranged between the first eyebolt and the second eyebolt, the first eyebolt being mobile relative to the second eyebolt to actuate the preloading means, the movement of the first eyebolt modifying the stiffness of the spiral spring.

Selon une forme de réalisation particulière de l'invention, les moyens de précontrainte comportent un levier relié à l'élément flexible, le premier piton étant solidaire d'une extrémité libre du levier.According to a particular embodiment of the invention, the prestressing means comprise a lever connected to the flexible element, the first eyebolt being secured to a free end of the lever.

Selon une forme de réalisation particulière de l'invention les moyens de précontrainte comportent une structure semi-rigide agencée en parallèle de l'élément flexible, le levier étant relié à la structure semi-rigide.According to a particular embodiment of the invention, the prestressing means comprise a semi-rigid structure arranged in parallel with the flexible element, the lever being connected to the semi-rigid structure.

Selon une forme de réalisation particulière de l'invention, l'élément flexible est lié à un support rigide, le deuxième piton étant solidaire du support rigide.According to a particular embodiment of the invention, the flexible element is linked to a rigid support, the second stud being integral with the rigid support.

Selon une forme de réalisation particulière de l'invention, la première partie et la deuxième partie sont superposées.According to a particular embodiment of the invention, the first part and the second part are superimposed.

Selon une forme de réalisation particulière de l'invention, la première partie est mobile en rotation par rapport à la deuxième partie.According to a particular embodiment of the invention, the first part is movable in rotation relative to the second part.

L'invention se rapporte également à un mouvement d'horlogerie comprenant un tel organe réglant.The invention also relates to a clock movement comprising such a regulating member.

L'invention se rapporte encore à une pièce d'horlogerie, par exemple une montre, comprenant un tel mouvement d'horlogerie.The invention also relates to a timepiece, for example a watch, comprising such a clockwork movement.

Brève description des figuresBrief description of the figures

Les buts, avantages et caractéristiques de la présente invention apparaîtront à la lecture de plusieurs formes de réalisation données uniquement à titre d'exemples non limitatifs, en référence aux dessins annexés dans lesquels :

  • la figure 1 représente schématiquement une vue en perspective d'un organe réglant selon un mode de réalisation de l'invention, l'organe réglant étant agencé dans un mouvement d'horlogerie,
  • la figure 2 représente schématiquement une vue en perspective d'une partie du premier mode de réalisation de l'organe réglant de la figure 1, sans pont de balancier et sans système de raquetterie,
  • la figure 3 représente schématiquement une vue de dessus d'un ressort-spiral de l'organe réglant,
  • la figure 4 représente schématiquement une vue en perspective d'une partie d'un organe réglant selon un deuxième mode de réalisation de l'invention, l'organe réglant étant agencé dans un mouvement d'horlogerie,
  • la figure 5 représente schématiquement une vue en perspective du deuxième mode de réalisation de l'organe réglant de la figure 4,
  • la figure 6 représente schématiquement une vue en perspective d'une variante du porte-pitons du deuxième mode de réalisation,
  • la figure 7 représente schématiquement une vue en perspective de la deuxième partie du porte-pitons de la variante de la figure 6, et
  • la figure 8 représente schématiquement une vue en perspective de la deuxième partie du porte-pitons montée sur un pont de balancier.
The aims, advantages and characteristics of the present invention will appear on reading several embodiments given solely by way of non-limiting examples, with reference to the appended drawings in which:
  • there figure 1 schematically represents a perspective view of a regulating member according to one embodiment of the invention, the regulating member being arranged in a clockwork movement,
  • there figure 2 schematically represents a perspective view of a part of the first embodiment of the regulating member of the figure 1 , without balance bridge and without racket system,
  • there Figure 3 schematically represents a top view of a spiral spring of the regulating member,
  • there figure 4 schematically represents a perspective view of a part of a regulating member according to a second embodiment of the invention, the regulating member being arranged in a clockwork movement,
  • there figure 5 schematically represents a perspective view of the second embodiment of the regulating member of the figure 4 ,
  • there Figure 6 schematically represents a perspective view of a variant of the eyebolt carrier of the second embodiment,
  • there Figure 7 schematically represents a perspective view of the second part of the eyebolt carrier of the variant of the Figure 6 , And
  • there figure 8 schematically represents a perspective view of the second part of the eyebolt carrier mounted on a balance bridge.

Description détaillée de l'inventionDetailed description of the invention

Les figures 1 et 2 montrent une représentation schématique d'un premier mode de réalisation d'un organe réglant 1 agencé dans un mouvement d'horlogerie 10. Le mouvement d'horlogerie 10 comprend une platine 21, un organe réglant muni d'une masse inertielle, et un élément de rappel élastique de la masse inertielle configuré pour la faire osciller.THE figures 1 and 2 show a schematic representation of a first embodiment of a regulating member 1 arranged in a clock movement 10. The clock movement 10 comprises a plate 21, a regulating member provided with an inertial mass, and an element elastic return of the inertial mass configured to make it oscillate.

L'organe réglant 1 comprend en outre un système de raquetterie 20, un balancier 23 annulaire comme masse inertielle, un arbre de balancier 24, un ressort-spiral 25 comme élément de rappel élastique, et un pont de balancier 22.The regulating member 1 further comprises a racket system 20, an annular balance 23 as inertial mass, a balance shaft 24, a spiral spring 25 as an elastic return element, and a balance bridge 22.

La platine 21 est pourvue d'un logement 26 pour recevoir l'organe réglant 1, dans lequel sont superposés, ici de bas en haut, le balancier 23, le ressort-spiral 25, le pont de balancier 22 et le système de raquetterie 20.The plate 21 is provided with a housing 26 to receive the regulating member 1, in which are superimposed, here from bottom to top, the balance 23, the spiral spring 25, the balance bridge 22 and the racket system 20 .

L'arbre de balancier 24 est centré dans le logement 26 et traverse le centre du balancier 23, du ressort-spiral 25 et du pont de balancier 22. L'arbre de balancier 24 est maintenu par deux paliers antichocs 28 agencés aux deux extrémités de l'arbre de balancier 24. Un premier palier est agencé au fond du logement 26, et le second palier 28 est agencé au-dessus du logement 26, et est maintenu par le pont de balancier 22, le pont de balancier 22 traversant le haut du logement 26 en passant par l'axe central du logement 26. Le pont de balancier 22 est doté d'un trou, ici traversant, dans lequel le deuxième palier 28 est maintenu. Le système de raquetterie 20 est monté sur le pont de balancier 22 et est disposé, dans ce mode de réalisation, sur l'axe central du logement 26.The balance shaft 24 is centered in the housing 26 and passes through the center of the balance 23, the balance spring 25 and the balance bridge 22. The balance shaft 24 is held by two anti-shock bearings 28 arranged at the two ends of the balance shaft 24. A first bearing is arranged at the bottom of the housing 26, and the second bearing 28 is arranged above the housing 26, and is held by the balance bridge 22, the balance bridge 22 crossing the top of the housing 26 passing through the central axis of the housing 26. The balance bridge 22 is provided with a hole, here through, in which the second bearing 28 is held. The racket system 20 is mounted on the balance bridge 22 and is arranged, in this embodiment, on the central axis of the housing 26.

Représenté sur les figures 2 et 3, le ressort-spiral 25 s'étend de préférence sensiblement dans un plan. Le ressort-spiral 25 comprend un ruban flexible 2 enroulé sur lui-même selon plusieurs spires, le ruban 2 ayant une raideur prédéfinie. L'extrémité interne 9 du ruban 2 vient de matière ou est assemblée à un support 3, généralement dénommée virole. Le support 3 a une forme sensiblement triangulaire, et est enfilé autour de l'arbre du balancier 24.Represented on the figures 2 And 3 , the spiral spring 25 preferably extends substantially in a plane. The spiral spring 25 comprises a flexible ribbon 2 wound on itself in several turns, the ribbon 2 having a predefined stiffness. The internal end 9 of the ribbon 2 comes from material or is assembled to a support 3, generally called a ferrule. The support 3 has a substantially triangular shape, and is slipped around the shaft of the balance 24.

Le ressort-spiral 25 comporte en outre des moyens d'ajustement de sa raideur. Par exemple, les moyens d'ajustement sont notamment actionnables par un utilisateur lorsque l'organe réglant est monté sur la platine du mouvement d'horlogerie.The spiral spring 25 further comprises means for adjusting its stiffness. For example, the adjustment means are in particular operable by a user when the regulating member is mounted on the plate of the clock movement.

Les moyens d'ajustement comportent un élément flexible 5 agencé en série du ruban 2, l'élément flexible 5 reliant une extrémité 4, 9 dudit ruban 2 à un support rigide 17, et solidaire d'une des extrémités 4, 9 du ruban 2. L'élément flexible 5 est solidaire de l'extrémité externe 4 du ruban 2. L'élément élastique 5 est un élément différent du ruban 2.The adjustment means comprise a flexible element 5 arranged in series with the ribbon 2, the flexible element 5 connecting one end 4, 9 of said ribbon 2 to a rigid support 17, and secured to one of the ends 4, 9 of the ribbon 2 The flexible element 5 is integral with the external end 4 of the ribbon 2. The elastic element 5 is a different element from the ribbon 2.

L'élément flexible 5 ajoute une raideur supplémentaire à celle du ruban 2. L'élément flexible 5 a de préférence une raideur supérieure à celle du ruban 2. L'élément flexible 5 est ici agencé dans le prolongement du ruban 2. De préférence, les moyens d'ajustement et le ruban 2 sont monoblocs, voire formés d'une même matière, par exemple en silicium.The flexible element 5 adds additional stiffness to that of the ribbon 2. The flexible element 5 preferably has a stiffness greater than that of the ribbon 2. The flexible element 5 is here arranged in the extension of the ribbon 2. Preferably, the adjustment means and the ribbon 2 are in one piece, or even made of the same material, for example silicon.

L'élément flexible 5 du ressort-spiral 25 comprend un pivot à lames flexibles décroisées. Le pivot comprend deux lames flexibles décroisées 11, 12 et une partie rigide 18. Les lames flexibles 11, 12 sont jointes, d'une part latéralement à un support rigide 17, et d'autre part à la partie rigide 18 en se rapprochant l'une de l'autre. Ainsi, de préférence, les lames flexibles 11, 12 s'éloignent depuis la partie rigide 18 jusqu'au support rigide 17. L'extrémité externe 4 du ruban 2 est jointe à la partie rigide 18. Le support rigide 17 est immobile par rapport à la platine 21. Le support rigide 17 a une forme de L, une première branche 46 du L servant de liaison avec les lames flexibles 11, 12, la deuxième branche 47 du L étant orientée du côté opposé au pivot à lames décroisées pour pouvoir être assemblé au mouvement d'horlogerie 10.The flexible element 5 of the spiral spring 25 comprises a pivot with uncrossed flexible blades. The pivot comprises two uncrossed flexible blades 11, 12 and a rigid part 18. The flexible blades 11, 12 are joined, on the one hand laterally to a rigid support 17, and on the other hand to the rigid part 18 in bringing one closer to the other. Thus, preferably, the flexible blades 11, 12 move away from the rigid part 18 to the rigid support 17. The external end 4 of the ribbon 2 is joined to the rigid part 18. The rigid support 17 is immobile relative to the rigid part 18. to the plate 21. The rigid support 17 has an L shape, a first branch 46 of the L serving as a connection with the flexible blades 11, 12, the second branch 47 of the L being oriented on the side opposite the pivot with uncrossed blades to be able to be assembled with the clock movement 10.

Les moyens d'ajustement du ressort-spiral 25 comportent en outre des moyens de précontrainte 6 pour appliquer une force ou un couple variable sur l'élément flexible 5. Ainsi, on peut ajuster la raideur du ressort-spiral. Le couple ou la force est ajustable de manière continue par les moyens de précontrainte 6. Autrement dit, le couple ou la force n'est pas restreinte à des valeurs ponctuelles. Ainsi, on peut ajuster la raideur de l'élément flexible 5 avec une grande précision.The means for adjusting the spiral spring 25 further comprise prestressing means 6 for applying a variable force or torque to the flexible element 5. Thus, the stiffness of the spiral spring can be adjusted. The torque or force is continuously adjustable by the prestressing means 6. In other words, the torque or force is not restricted to point values. Thus, the stiffness of the flexible element 5 can be adjusted with great precision.

Les moyens de précontrainte 6 comportent une lame flexible secondaire 19, agencée sur un côté opposé de la partie rigide 18 dans le prolongement du pivot à lames décroisées. La lame flexible secondaire 19 est disposée tangentiellement au ruban 2, à l'extrémité externe 4.The prestressing means 6 comprise a secondary flexible blade 19, arranged on an opposite side of the rigid part 18 in the extension of the pivot with uncrossed blades. The secondary flexible blade 19 is arranged tangentially to the ribbon 2, at the external end 4.

La lame flexible secondaire 19 est reliée par l'autre extrémité à un levier courbe 14 contournant le ruban 2. Le levier 14 est relié, en plus de la lame flexible secondaire 19, à une structure semi-rigide 27 liée au support rigide 17. La structure semi-rigide 27 se déforme en partie lorsque le levier 14 est actionné par la force ou le couple.The secondary flexible blade 19 is connected at the other end to a curved lever 14 bypassing the ribbon 2. The lever 14 is connected, in addition to the secondary flexible blade 19, to a semi-rigid structure 27 linked to the rigid support 17. The semi-rigid structure 27 is partially deformed when the lever 14 is actuated by force or torque.

La force ou le couple est exercé sur l'extrémité libre 15 du levier 14. Ainsi, le levier 14 des moyens de précontrainte 6 transmet la force ou le couple à l'élément flexible 5 par l'intermédiaire de la lame flexible secondaire 19 et de la structure semi-rigide 27, de manière à modifier la raideur du ressort-spiral 25.The force or torque is exerted on the free end 15 of the lever 14. Thus, the lever 14 of the preloading means 6 transmits the force or torque to the flexible element 5 via the secondary flexible blade 19 and of the semi-rigid structure 27, so as to modify the stiffness of the spiral spring 25.

Pour pouvoir appliquer la force ou le couple variable sur le ressort-spiral 25, l'organe réglant comprend un système de raquetterie 20 particulière selon l'invention.To be able to apply the variable force or torque to the spiral spring 25, the regulating member comprises a particular racket system 20 according to the invention.

Dans le premier mode de réalisation des figures 1 et 2, le système de raquetterie 20 est muni d'un porte-pitons 31 en deux parties, une première partie 32 et une deuxième partie 33. La première partie 32 du porte-pitons 31 suspend le premier piton 34, tandis qu'une deuxième partie 33 du porte-pitons 31 est dotée du deuxième piton 35. Le porte-pitons 31 est lié mécaniquement à l'élément élastique 5, mais il ne bloque pas le ruban 2.In the first embodiment of the figures 1 and 2 , the racket system 20 is provided with a eyebolt holder 31 in two parts, a first part 32 and a second part 33. The first part 32 of the eyebolt holder 31 suspends the first eyebolt 34, while a second part 33 of the eyebolt holder 31 is equipped with the second eyebolt 35. The eyebolt holder 31 is mechanically linked to the elastic element 5, but it does not block the ribbon 2.

La première partie 32 du porte-pitons 31 est disposée en partie au-dessus de la deuxième partie 33 du porte-pitons 31, qui est contact avec le pont de balancier 22. Les deux parties du porte-pitons 31 sont maintenues et positionnées par l'amortisseur 28.The first part 32 of the eyebolt holder 31 is arranged partly above the second part 33 of the eyebolt holder 31, which is in contact with the balance bridge 22. The two parts of the eyebolt holder 31 are held and positioned by the shock absorber 28.

Le système de raquetterie 20 comprend deux excentriques 36, 37. Le premier excentrique 36 est monté sur la deuxième partie 33 du porte-pitons 31 et permet le réglage angulaire entre les deux parties du porte-pitons 31, ce qui permet de régler la marche.The racket system 20 comprises two eccentrics 36, 37. The first eccentric 36 is mounted on the second part 33 of the eyebolt holder 31 and allows angular adjustment between the two parts of the eyebolt holder 31, which makes it possible to adjust the step .

Selon l'invention, l'organe réglant 1 comprend en outre des moyens de verrouillage configurés pour bloquer la deuxième partie 33 du porte-pitons 31 dans un positionnement, ici angulaire, par rapport à la platine 21 du mouvement. Les moyens de verrouillage comprennent le deuxième excentrique 37.According to the invention, the regulating member 1 further comprises locking means configured to lock the second part 33 of the eyebolt holder 31 in a positioning, here angular, relative to the plate 21 of the movement. The locking means include the second eccentric 37.

Le deuxième excentrique 37 est monté sur le pont de balancier 22 et permet de régler la position angulaire du porte-pitons 31 par rapport à la platine 21, ce qui permet de régler le repère.The second eccentric 37 is mounted on the balance bridge 22 and makes it possible to adjust the angular position of the eyebolt holder 31 relative to the plate 21, which makes it possible to adjust the mark.

Ainsi, lors du montage du système de raquetterie 20, on positionne d'abord la deuxième partie 33 du porte-pitons 31, qui est mobile, puis on la bloque grâce au deuxième excentrique 37 pour qu'elle reste immobile par rapport à la platine 21. On positionne ensuite la première partie 32 du porte-pitons 31, puis on la bloque angulairement grâce au premier excentrique 36 pour qu'elle reste immobile par rapport à la deuxième partie 33. Par conséquent, en actionnant le deuxième excentrique 37, le porte-pitons 31 entier tourne autour de l'axe du balancier pour le réglage du repère. Pour débloquer et déplacer la première partie 32, on actionne le premier excentrique 36. Dans ce cas, c'est uniquement la première partie 32 du porte-pitons 31 qui tourne autour de l'axe du balancier, ce qui permet de déplacer le premier piton 34 et d'agir sur l'élément élastique 5 pour faire varier la marche.Thus, when assembling the racket system 20, we first position the second part 33 of the eyebolt holder 31, which is mobile, then we block it using the second eccentric 37 so that it remains stationary in relation to the plate 21. We then position the first part 32 of the eyebolt holder 31, then it is blocked angularly thanks to the first eccentric 36 so that it remains stationary relative to the second part 33. Consequently, by actuating the second eccentric 37, the entire eyebolt holder 31 rotates around the balance axis for adjusting the mark. To unlock and move the first part 32, the first eccentric 36 is actuated. In this case, it is only the first part 32 of the eyebolt holder 31 which rotates around the axis of the balance, which makes it possible to move the first piton 34 and to act on the elastic element 5 to vary the step.

Par conséquent, seule la première partie 32 du porte-pitons 31 est mobile par rapport au pont de balancier 22 après le montage, afin de pouvoir déplacer le premier piton 34 et agir sur l'élément élastique 5.Consequently, only the first part 32 of the eyebolt holder 31 is movable relative to the balance bridge 22 after assembly, in order to be able to move the first eyebolt 34 and act on the elastic element 5.

Les deux parties 32, 33 entourent le deuxième palier 28. Pour cela, chaque partie 32, 33 comprend un anneau central 38, 39 agencé autour du deuxième palier 28, les deux anneaux centraux 38, 39 étant superposés.The two parts 32, 33 surround the second bearing 28. For this, each part 32, 33 comprises a central ring 38, 39 arranged around the second bearing 28, the two central rings 38, 39 being superimposed.

La première partie 32 comprend deux protubérances 41, 42 s'étendant radialement depuis l'anneau central 38, une première protubérance 41 maintenant le premier piton 34 vers le bas dans le logement 26 à l'aide d'une première vis 74, la deuxième protubérance 42 ayant une forme d'arc de cercle coopérant avec le premier excentrique 36.The first part 32 comprises two protrusions 41, 42 extending radially from the central ring 38, a first protuberance 41 holding the first eyebolt 34 downwards in the housing 26 using a first screw 74, the second protuberance 42 having the shape of an arc of a circle cooperating with the first eccentric 36.

La deuxième partie 33 comprend trois protubérances 43, 44, 45 s'étendant depuis l'anneau central 39. Une première protubérance 43 maintient le deuxième piton 35 vers le bas dans le logement 26 à l'aide d'une deuxième vis 75, une deuxième protubérance 44 s'étendant autour du premier excentrique 36, et la troisième protubérance 45 ayant une forme d'arc de cercle coopérant avec le deuxième excentrique 37.The second part 33 comprises three protuberances 43, 44, 45 extending from the central ring 39. A first protuberance 43 holds the second stud 35 down in the housing 26 using a second screw 75, a second protuberance 44 extending around the first eccentric 36, and the third protuberance 45 having the shape of an arc of a circle cooperating with the second eccentric 37.

Dans un agencement de référence, le premier piton 34 et le deuxième piton 35 sont par exemple agencés de manière sensiblement symétrique par rapport à l'arbre du balancier 24.In a reference arrangement, the first eyebolt 34 and the second eyebolt 35 are for example arranged substantially symmetrically with respect to the balance shaft 24.

Le premier piton 34 coopère avec l'extrémité libre 15 du levier 14, et le deuxième piton 35 coopère avec la deuxième branche 47 du support rigide 17. Ainsi, les moyens de précontrainte 6 et l'élément élastique 5 sont supportés par le système de raquetterie 20 auquel ils sont suspendus.The first eyebolt 34 cooperates with the free end 15 of the lever 14, and the second eyebolt 35 cooperates with the second branch 47 of the rigid support 17. Thus, the prestressing means 6 and the elastic element 5 are supported by the system of racket 20 from which they are suspended.

Les deux pitons 34, 35 sont agencés de part et d'autre des moyens de précontrainte 6 et de l'élément élastique 5. En outre, les deux pitons 34, 35 sont rigidement liés au levier 14 et au support rigide 17. Autrement dit, le premier 34 et le deuxième piton 35 sont respectivement solidaires du levier 14 par l'extrémité libre 15 et du support rigide 17 par la deuxième branche 47. L'assemblage des pitons et du ressort spiral 25 est par exemple opéré par collage, brasage, soudage, par déformation de verre métallique, ou par une fixation mécanique.The two eyebolts 34, 35 are arranged on either side of the prestressing means 6 and the elastic element 5. In addition, the two eyebolts 34, 35 are rigidly linked to the lever 14 and to the rigid support 17. In other words , the first 34 and the second eyebolt 35 are respectively secured to the lever 14 by the free end 15 and to the rigid support 17 by the second branch 47. The assembly of the eyebolts and the spiral spring 25 is for example carried out by gluing, brazing , welding, by deformation of metallic glass, or by mechanical fixing.

Le premier piton 34 est mobile par rapport au deuxième piton 35. A cette fin, la première partie 32 est mobile par rapport à la deuxième partie 33. La première partie 32 est mobile en rotation autour du deuxième palier 28. Ainsi, le premier piton 34 se déplace avec la première partie 32, le premier piton 34 étant mobile en rotation autour du deuxième palier 28. Le premier piton 34 peut par exemple être déplacé sur une plage angulaire de 20°, voire de 10°.The first eyebolt 34 is movable relative to the second eyebolt 35. To this end, the first part 32 is movable relative to the second part 33. The first part 32 is movable in rotation around the second bearing 28. Thus, the first eyebolt 34 moves with the first part 32, the first eyebolt 34 being movable in rotation around the second bearing 28. The first eyebolt 34 can for example be moved over an angular range of 20°, or even 10°.

Le déplacement du premier piton 34 par rapport au deuxième piton 35 modifie la raideur de l'élément élastique 5, car le déplacement exerce une force ou couple plus ou moins important sur le levier 14 des moyens de précontrainte 6, de sorte que la raideur de l'élément élastique 5 varie, et ainsi la raideur du ressort-spiral 25 entier. Le système de raquetterie 20 permet ainsi de régler la marche de l'organe réglant 1.The movement of the first eyebolt 34 relative to the second eyebolt 35 modifies the stiffness of the elastic element 5, because the movement exerts a more or less significant force or torque on the lever 14 of the prestressing means 6, so that the stiffness of the elastic element 5 varies, and thus the stiffness of the entire spiral spring 25. The racket system 20 thus makes it possible to adjust the operation of the regulating member 1.

A cette fin, le système de raquetterie 20 permet de modifier la position du premier piton 34 par rapport au deuxième piton 35 grâce à la deuxième protubérance 42 en forme d'arc de cercle de la première partie 32 et au premier excentrique 36. L'arc de cercle a un diamètre à peine plus petit que la tête du premier excentrique 36, de sorte que le déplacement du premier excentrique 36 engendre le déplacement de la deuxième protubérance 42, et donc de la première partie 32 par rapport à la deuxième partie 33 circulairement autour du deuxième palier 28, tandis que la deuxième partie 33 reste en position, lorsque la première partie 32 est actionnée. Ainsi, en faisant tourner le premier excentrique 36, la deuxième protubérance 42 en forme d'arc de cercle se déplace circulairement autour du deuxième palier 28. La première partie 32 se déplace par rapport à la seconde partie 33, et en conséquence, le premier piton 34 se déplace par rapport au deuxième piton 35 pour modifier la force ou le couple appliqué sur les moyens de précontrainte 6 du ressort-spiral 25. L'absence de jeu entre les excentriques 36, 37 et les arcs de cercle 42, 45 permet un réglage sans hystérèse.To this end, the racket system 20 makes it possible to modify the position of the first eyebolt 34 relative to the second eyebolt 35 thanks to the second protuberance 42 in the form of an arc of a circle of the first part 32 and to the first eccentric 36. arc of a circle has a diameter barely smaller than the head of the first eccentric 36, so that the movement of the first eccentric 36 causes the movement of the second protuberance 42, and therefore of the first part 32 relative to the second part 33 circularly around the second bearing 28, while the second part 33 remains in position, when the first part 32 is actuated . Thus, by rotating the first eccentric 36, the second protuberance 42 in the form of an arc of a circle moves circularly around the second bearing 28. The first part 32 moves relative to the second part 33, and consequently, the first pin 34 moves relative to the second pin 35 to modify the force or the torque applied to the preloading means 6 of the spiral spring 25. The absence of play between the eccentrics 36, 37 and the arcs of circle 42, 45 allows an adjustment without hysteresis.

Des repères de réglage 29 sont disposés sur la deuxième protubérance 42 en forme d'arc de cercle autour du premier excentrique 36. Ainsi, pour régler le système de raquetterie 20, le premier excentrique 36 est orienté selon un repère préférentiel.Adjustment marks 29 are arranged on the second protuberance 42 in the shape of an arc of a circle around the first eccentric 36. Thus, to adjust the racket system 20, the first eccentric 36 is oriented according to a preferred mark.

Le système de raquetterie 20 est configuré pour ajuster la marche de l'organe réglant 1 avec une résolution inférieure ou égale à 1 seconde par jour, de préférence inférieure ou égale à 0,5 seconde par jour, voire inférieure ou égale à 0,1 seconde par jour. Ainsi, le système de raquetterie 20 est calibré pour que son actionnement permette une telle résolution. La configuration de l'organe réglant 1 permet d'atteindre une telle précision.The racket system 20 is configured to adjust the operation of the regulating member 1 with a resolution less than or equal to 1 second per day, preferably less than or equal to 0.5 seconds per day, or even less than or equal to 0.1 second per day. Thus, the racket system 20 is calibrated so that its actuation allows such a resolution. The configuration of the regulating member 1 makes it possible to achieve such precision.

De préférence, les repères de réglage 29 correspondent à la résolution. Autrement dit la différence entre deux repères consécutifs correspond à 1 seconde, 0,5 seconde, voire 0,1 seconde par jour.Preferably, the adjustment marks 29 correspond to the resolution. In other words, the difference between two consecutive marks corresponds to 1 second, 0.5 seconds, or even 0.1 seconds per day.

Dans le deuxième mode de réalisation de l'organe réglant 40 des figures 4 et 5, les caractéristiques de l'organe réglant 40 sont sensiblement identiques au premier mode de réalisation, excepté pour le réglage du système de raquetterie 60.In the second embodiment of the regulating body 40 of the figures 4 and 5 , the characteristics of the regulating member 40 are substantially identical to the first embodiment, except for the adjustment of the racket system 60.

La première partie 52 du système de raquetterie 60 comprend un bras 63 s'étendant radialement vers l'extérieur de la première partie 52 dans un même plan. La deuxième partie 53 ne comprend pas la protubérance en forme d'arc de cercle.The first part 52 of the racket system 60 comprises an arm 63 extending radially outwards from the first part 52 in the same plan. The second part 53 does not include the protuberance in the shape of an arc of a circle.

Le système de raquetterie 60 comporte une came 55 mobile en rotation à la place du premier excentrique. La came 55 coopère avec le bras 63 de la première partie 52 pour la faire tourner autour du second palier 28. L'extrémité 56 du bras 63 est de préférence constamment en contact avec la came 55, de sorte que la rotation de la came 55 exerce un déplacement sur le bras 63 selon la position angulaire de la came 55. Ainsi, la première partie 52 du système de raquetterie 60 se déplace de manière semblable au premier mode de réalisation. Un tel système de raquetterie 60 doté d'une came 55 permet de faire varier la raideur du ressort-spiral 25 avec linéarité.The racket system 60 comprises a cam 55 movable in rotation in place of the first eccentric. The cam 55 cooperates with the arm 63 of the first part 52 to rotate it around the second bearing 28. The end 56 of the arm 63 is preferably constantly in contact with the cam 55, so that the rotation of the cam 55 exerts a movement on the arm 63 according to the angular position of the cam 55. Thus, the first part 52 of the racket system 60 moves in a manner similar to the first embodiment. Such a racket system 60 equipped with a cam 55 makes it possible to vary the stiffness of the spiral spring 25 with linearity.

Pour maintenir le bras 63 de la première partie 52 en contact avec la came 55, le système de raquetterie 60 comporte un ressort 57 exerçant une force de rappel sur la première partie 52. Le ressort 57 a sensiblement une forme de U entourant une vis de verrouillage 77, une première extrémité 58 du U étant assemblée à la deuxième partie 53 du système de raquetterie 20, et une deuxième extrémité 59 du U étant retenue par un crochet de retenue 61 agencé sur la première partie 52. Le ressort 57 est agencé sur la deuxième partie du porte-pitons 31 symétriquement de la came 55 par rapport au second palier 28.To keep the arm 63 of the first part 52 in contact with the cam 55, the racket system 60 comprises a spring 57 exerting a restoring force on the first part 52. The spring 57 has substantially a U shape surrounding a screw of locking 77, a first end 58 of the U being assembled to the second part 53 of the racket system 20, and a second end 59 of the U being retained by a retaining hook 61 arranged on the first part 52. The spring 57 is arranged on the second part of the eyebolt holder 31 symmetrically of the cam 55 with respect to the second bearing 28.

Ainsi, le ressort 57 exerce une force de rappel sur les deux parties 52, 53 du système de raquetterie 60, la force de rappel ayant pour fonction de maintenir constamment le bras 63 de la première partie 52 en contact avec la came 55. Lorsqu'on agit sur la came 55, la première partie 52 tourne pour déplacer le premier piton 34 par rapport au deuxième piton 35, tout en subissant une force de rappel exercée par le ressort 57, pour permettre le contact du bras 63 de la première partie 52 contre la came 55, en particulier lorsque la paroi périphérique 64 de la came 55 s'écarte du bras 63.Thus, the spring 57 exerts a restoring force on the two parts 52, 53 of the racket system 60, the restoring force having the function of constantly maintaining the arm 63 of the first part 52 in contact with the cam 55. When we act on the cam 55, the first part 52 rotates to move the first eyebolt 34 relative to the second eyebolt 35, while undergoing a restoring force exerted by the spring 57, to allow contact of the arm 63 of the first part 52 against the cam 55, in particular when the peripheral wall 64 of the cam 55 moves away from the arm 63.

Le système de raquetterie 60 est configuré pour ajuster la marche de l'organe réglant 40 avec une résolution inférieure ou égale à 1 seconde par jour, de préférence inférieure ou égale à 0,5 seconde par jour, voire inférieure ou égale à 0,1 seconde par jour. La configuration de l'organe réglant 40 permet d'atteindre une telle précision.The racket system 60 is configured to adjust the operation of the regulating member 40 with a resolution less than or equal to 1 second per day, preferably less than or equal to 0.5 seconds per day, or even less than or equal to 0.1 seconds per day. The configuration of the regulating member 40 makes it possible to achieve such precision.

Selon l'invention, l'organe réglant 40 comprend en outre des moyens de verrouillage configurés pour bloquer la deuxième partie 53 du porte-pitons 51 dans une position par rapport au pont de balancier 22 du mouvement. Les moyens de verrouillage comprennent une plaque de verrouillage 62 et une vis de verrouillage 77 pour assembler la plaque de verrouillage 62 sur la deuxième partie 53 et verrouiller sa position.According to the invention, the regulating member 40 further comprises locking means configured to lock the second part 53 of the eyebolt holder 51 in a position relative to the balance bridge 22 of the movement. The locking means include a locking plate 62 and a locking screw 77 for assembling the locking plate 62 on the second part 53 and locking its position.

De préférence, la plaque de verrouillage a une forme coopérant d'un côté avec un pont de balancier 72 et de l'autre côté avec le deuxième palier 28. La vis de verrouillage 77 traverse la plaque de verrouillage 62 pour être vissée dans le pont de balancier 72 disposé en-dessous de la plaque de verrouillage 62. Ainsi, en serrant la vis de verrouillage 77, la plaque de verrouillage 62 exerce une force au moins en partie sur la deuxième partie 53 du porte-pitons 51, au niveau d'un sabot 78 de la première extrémité 58 du U du ressort 57, le sabot reposant sur la deuxième partie 53 du porte-pitons 51.Preferably, the locking plate has a shape cooperating on one side with a balance bridge 72 and on the other side with the second bearing 28. The locking screw 77 passes through the locking plate 62 to be screwed into the bridge of balancer 72 disposed below the locking plate 62. Thus, by tightening the locking screw 77, the locking plate 62 exerts a force at least in part on the second part 53 of the eyebolt holder 51, at the level of a shoe 78 of the first end 58 of the U of the spring 57, the shoe resting on the second part 53 of the eyebolt holder 51.

Ainsi, lors du montage du système de raquetterie 20, on positionne d'abord la deuxième partie 53 du porte-pitons 51, qui est mobile, puis on la bloque grâce à la plaque de verrouillage 62 et à la vis de verrouillage 77 pour qu'elle reste immobile par rapport au pont de balancier 72. Seule la première partie 52 reste mobile par rapport au pont de balancier 72 après le montage, afin de pouvoir déplacer le premier piton 34 et agir sur l'élément élastique 5.Thus, when assembling the racket system 20, we first position the second part 53 of the eyebolt holder 51, which is mobile, then we block it using the locking plate 62 and the locking screw 77 so that it remains stationary relative to the balance bridge 72. Only the first part 52 remains movable relative to the balance bridge 72 after assembly, in order to be able to move the first eyebolt 34 and act on the elastic element 5.

Des repères de réglage 49 sont en outre disposés sur la came 55. Ainsi, pour régler le système de raquetterie 60, on déplace la came 55, par exemple au moyen d'un bouton de réglage (non représenté sur les figures 4 et 5), disposé sur la came 55, et que l'on peut faire tourner. Ainsi, pour régler le système de raquetterie 60, la came 55 est orientée selon un repère préférentiel.Adjustment marks 49 are also arranged on the cam 55. Thus, to adjust the racket system 60, the cam 55 is moved, for example by means of an adjustment button (not shown on the figures 4 and 5 ), placed on cam 55, and which can be rotated. Thus, to adjust the racket system 60, the cam 55 is oriented according to a preferred reference.

De préférence, les repères de réglage 49 correspondent à la résolution. Autrement dit la différence entre deux repères consécutifs permet de modifier la marche d'une seconde, 0.5 seconde, voire 0.1 seconde par jour. Sur la figure 6, la résolution des repères de réglage 49 est de 0.1 seconde.Preferably, the adjustment marks 49 correspond to the resolution. In other words, the difference between two consecutive marks makes it possible to modify the step by one second, 0.5 seconds, or even 0.1 seconds per day. On the Figure 6 , the resolution of the adjustment marks 49 is 0.1 second.

Sur les figure 6 et 7, le porte-pitons 51 est une variante du deuxième mode de réalisation, dans lequel la deuxième partie 53 comprend d'un côté un bras coudé 70, et de l'autre côté une paire de doigts 71, ainsi qu'un orifice 68 traversant sensiblement circulaire au milieu. Le bras coudé 70 a pour fonction de coopérer avec la plaque de verrouillage 62. La paire de doigts 71 a pour fonction maintenir l'axe de la came 55 et de reposer sur le pont de balancier 72 du mouvement.On the figure 6 and 7 , the eyebolt holder 51 is a variant of the second embodiment, in which the second part 53 comprises on one side an elbow arm 70, and on the other side a pair of fingers 71, as well as a through orifice 68 noticeably circular in the middle. The function of the bent arm 70 is to cooperate with the locking plate 62. The function of the pair of fingers 71 is to maintain the axis of the cam 55 and to rest on the balance bridge 72 of the movement.

L'orifice 68 traversant permet d'insérer un palier antichoc 28 du balancier, autour duquel le porte-pitons 51 est monté et maintenu. L'orifice traversant 68 est ouvert par une fente 69 pour apporter de la flexibilité à un segment 73 bordant l'orifice 68. Ainsi, le palier 28 peut être clipsé et maintenu dans l'orifice 68. Grâce à cette flexibilité, le segment 73 peut s'écarter pour introduire le palier 28 dans l'orifice 68, et exercer une force suffisante pour le maintenir. Les formes de l'orifice 68 et du palier antichocs 28 sont configurées pour coopérer ensemble, la forme du palier 28 étant de préférence légèrement supérieure à la forme de l'orifice 68.The through hole 68 makes it possible to insert a shockproof bearing 28 of the balance, around which the eyebolt holder 51 is mounted and maintained. The through orifice 68 is opened by a slot 69 to provide flexibility to a segment 73 bordering the orifice 68. Thus, the bearing 28 can be clipped and held in the orifice 68. Thanks to this flexibility, the segment 73 can move aside to introduce the bearing 28 into the orifice 68, and exert sufficient force to maintain it. The shapes of the orifice 68 and the anti-shock bearing 28 are configured to cooperate together, the shape of the bearing 28 preferably being slightly greater than the shape of the orifice 68.

En outre, la géométrie de l'orifice 68 permet de guider en rotation le porte-pitons 51. En effet, le segment flexible 73 permet de guider en rotation le porte-pitons 51 autour du palier amortisseur tout en gardant la concentricité de l'axe du balancier (non représenté sur les figures).In addition, the geometry of the orifice 68 makes it possible to guide the eyebolt carrier 51 in rotation. Indeed, the flexible segment 73 makes it possible to guide the eyebolt carrier 51 in rotation around the shock absorber bearing while maintaining the concentricity of the balance axis (not shown in the figures).

Sur la figure 6, un bouton de réglage rotatif 65 est monté sur la came 55, le bouton 65 comportant des repères de réglage 66 périphériques, les repères de réglage 66 étant conformes à l'invention.On the Figure 6 , a rotary adjustment knob 65 is mounted on the cam 55, the knob 65 comprising peripheral adjustment marks 66, the adjustment marks 66 being in accordance with the invention.

La figure 8 montre comment les moyens de verrouillage bloquent la deuxième partie 53 du porte-pitons 51 sur le pont de balancier 72. La plaque de verrouillage 62 appuie sur le bras coudé 70 pour le pincer contre le pont de balancier 72. La vis de verrouillage 77 traverse la plaque de verrouillage 62 et passe à l'intérieur du bras coudé 70 pour atteindre le pont de balancier 72 situé en-dessous. Ainsi, la deuxième partie 53 du porte-pitons 51 est prise en sandwich entre la plaque de verrouillage 62 et le pont de balancier 72. De plus, la plaque de verrouillage 62 retient le ressort 57.There figure 8 shows how the locking means block the second part 53 of the eyebolt holder 51 on the balance bridge 72. The locking plate 62 presses on the bent arm 70 to pinch it against the balance bridge 72. The locking screw 77 passes through the locking plate 62 and passes inside the bent arm 70 to reach the balance bridge 72 located at -below. Thus, the second part 53 of the eyebolt holder 51 is sandwiched between the locking plate 62 and the balance bridge 72. In addition, the locking plate 62 retains the spring 57.

Naturellement, l'invention n'est pas limitée aux modes de réalisation d'organes réglant décrits en référence aux figures, et des variantes pourraient être envisagées sans sortir du cadre de l'invention.Naturally, the invention is not limited to the embodiments of regulating members described with reference to the figures, and variants could be considered without departing from the scope of the invention.

Claims (17)

Organe réglant (1, 40) pour mouvement d'horlogerie comprenant une masse inertielle, par exemple un balancier (23), un ressort-spiral (25), et un système de raquetterie (20, 60) pour ajuster la marche du ressort-spiral (25), le système de raquetterie (20, 60) comprenant un porte-pitons (31, 51) comprenant une première partie (32, 52) et une deuxième partie (33, 53), la première partie (32, 52) étant mobile par rapport à la deuxième partie (33, 53) pour pouvoir régler la marche de l'organe réglant (1, 40), caractérisé en ce que l'organe réglant (1, 40) comprend des moyens de verrouillage configurés pour bloquer la deuxième partie (33) du porte-pitons (31, 51) dans un positionnement par rapport à une platine (21) du mouvement.Regulating member (1, 40) for a watch movement comprising an inertial mass, for example a balance wheel (23), a spiral spring (25), and a racket system (20, 60) for adjusting the rate of the spring spiral (25), the racket system (20, 60) comprising a eyebolt holder (31, 51) comprising a first part (32, 52) and a second part (33, 53), the first part (32, 52 ) being movable relative to the second part (33, 53) to be able to adjust the operation of the regulating member (1, 40), characterized in that the regulating member (1, 40) comprises locking means configured to lock the second part (33) of the eyebolt holder (31, 51) in positioning relative to a plate (21) of the movement. Organe réglant selon la revendication 1, caractérisé en ce que les moyens de verrouillage comprennent un excentrique (37) monté sur un pont de balancier (22) de l'organe réglant (1).Regulating member according to claim 1, characterized in that the locking means comprise an eccentric (37) mounted on a balance bridge (22) of the regulating member (1). Organe réglant selon la revendication 2, caractérisé en ce que la deuxième partie (33) comprend une protubérance (45) ayant une forme d'arc de cercle coopérant avec l'excentrique (37).Regulating member according to claim 2, characterized in that the second part (33) comprises a protuberance (45) having the shape of an arc of a circle cooperating with the eccentric (37). Organe réglant selon la revendication 1, caractérisé en ce que les moyens de verrouillage comprennent une plaque de verrouillage (62) et une vis de verrouillage (77) pour assembler la plaque de verrouillage (62) sur la deuxième partie (53) et verrouiller sa position.Regulating member according to claim 1, characterized in that the locking means comprise a locking plate (62) and a locking screw (77) for assembling the locking plate (62) on the second part (53) and locking its position. Organe réglant selon la revendication 4, caractérisé en ce que la plaque de verrouillage (62) a une forme coopérant d'un côté avec un pont de balancier (72) de l'organe réglant (40), et de l'autre côté avec un palier (28) de l'organe réglant pour bloquer la deuxième partie (33).Regulating member according to claim 4, characterized in that the locking plate (62) has a shape cooperating on one side with a balance bridge (72) of the regulating member (40), and on the other side with a bearing (28) of the regulating member to block the second part (33). Organe réglant selon la revendication 4 ou 5, caractérisé en ce que la vis de verrouillage (77) est agencée pour traverser la plaque de verrouillage (62) pour être vissée dans un pont de balancier (72) de l'organe réglant (40).Regulating member according to claim 4 or 5, characterized in that the locking screw (77) is arranged to pass through the plate. locking (62) to be screwed into a balance bridge (72) of the regulating member (40). Organe réglant selon l'une, quelconque, des revendications précédentes, caractérisé en ce que le système de raquetterie (60) comprend un ressort (57), exerçant une force entre la première partie (52) et la deuxième partie (53) pour maintenir le bras (63) de la première partie (52) contre la came (55).Regulating member according to any one of the preceding claims, characterized in that the racket system (60) comprises a spring (57), exerting a force between the first part (52) and the second part (53) to maintain the arm (63) of the first part (52) against the cam (55). Organe réglant selon l'une, quelconque, des revendications précédentes, caractérisé en ce que le ressort-spiral (25) comprend un ruban enroulé (2) et des moyens d'ajustement (30, 50) de la raideur du ressort-spiral dotés d'un élément élastique (5) agencé en série du ruban enroulé (2), le porte-pitons (31, 51) étant lié mécaniquement à l'élément élastique (5).Regulating member according to any one of the preceding claims, characterized in that the spiral spring (25) comprises a wound ribbon (2) and means (30, 50) for adjusting the stiffness of the spiral spring provided of an elastic element (5) arranged in series with the wound tape (2), the eyebolt holder (31, 51) being mechanically linked to the elastic element (5). Organe réglant selon la revendication 8, caractérisé en ce que les moyens d'ajustement (30, 50) comprennent des moyens de précontrainte (6) pour appliquer une force ou un couple variable sur l'élément flexible (5).Regulating member according to claim 8, characterized in that the adjustment means (30, 50) comprise prestressing means (6) for applying a variable force or torque to the flexible element (5). Organe réglant selon la revendication 9, caractérisé en ce que la première partie (32, 52) comporte un premier piton (34) et la deuxième partie (33, 53) un deuxième piton (35), l'élément élastique (5) et les moyens de précontrainte (6) étant agencés entre le premier piton (34) et le deuxième piton (35), le premier piton (34) étant mobile par rapport au deuxième piton (35) pour actionner les moyens de précontrainte (6), le déplacement du premier piton (34) modifiant la raideur du ressort-spiral.Regulating member according to claim 9, characterized in that the first part (32, 52) comprises a first eyebolt (34) and the second part (33, 53) a second eyebolt (35), the elastic element (5) and the prestressing means (6) being arranged between the first eyebolt (34) and the second eyebolt (35), the first eyebolt (34) being movable relative to the second eyebolt (35) to actuate the prestressing means (6), the movement of the first pin (34) modifying the stiffness of the spiral spring. Organe réglant selon la revendication 9 ou 10, caractérisé en ce que les moyens de précontrainte (6) comportent un levier (14) relié à l'élément flexible (5), le premier piton étant solidaire d'une extrémité libre (15) du levier (14).Regulating member according to claim 9 or 10, characterized in that the preloading means (6) comprise a lever (14) connected to the flexible element (5), the first eyebolt being secured to a free end (15) of the lever (14). Organe réglant selon l'une, quelconque, des revendications 9 à 11, caractérisé en ce que les moyens de précontrainte (6) comportent une structure semi-rigide agencée en parallèle de l'élément flexible (5), le levier (14) étant relié à la structure semi-rigide.Regulating member according to any one of claims 9 to 11, characterized in that the preloading means (6) comprise a semi-rigid structure arranged in parallel with the flexible element (5), the lever (14) being connected to the semi-rigid structure. Organe réglant selon l'une, quelconque, des revendications 8 à 12, caractérisé en ce que l'élément flexible (5) est lié à un support rigide (17), le deuxième piton (35) étant solidaire du support rigide (17).Regulating member according to any one of claims 8 to 12, characterized in that the flexible element (5) is linked to a rigid support (17), the second eyebolt (35) being integral with the rigid support (17) . Organe réglant selon l'une, quelconque, des revendications précédentes, caractérisé en ce que la première partie (32, 52) et la deuxième partie (33, 53) sont superposées.Regulating member according to any one of the preceding claims, characterized in that the first part (32, 52) and the second part (33, 53) are superimposed. Organe réglant selon l'une, quelconque, des revendications précédentes, caractérisé en ce que la première partie (32, 52) est mobile en rotation par rapport à la deuxième partie (33, 53).Regulating member according to any one of the preceding claims, characterized in that the first part (32, 52) is movable in rotation relative to the second part (33, 53). Mouvement d'horlogerie, caractérisé en ce qu'il comprend un organe réglant (1, 40) selon l'une, quelconque, des revendications précédentes.Clockwork movement, characterized in that it comprises a regulating member (1, 40) according to any one of the preceding claims. Pièce d'horlogerie, par exemple une montre, caractérisée en ce qu'elle comprend un mouvement d'horlogerie selon la revendication 16.Timepiece, for example a watch, characterized in that it comprises a timepiece movement according to claim 16.
EP23167376.5A 2022-06-02 2023-04-11 Timepiece regulating member comprising a regulator assembly provided with locking means Pending EP4286962A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US18/315,523 US20230393526A1 (en) 2022-06-02 2023-05-11 Timepiece regulating member comprising an index-assembly system provided with locking means
CN202321304309.0U CN220064632U (en) 2022-06-02 2023-05-26 Speed regulating mechanism for timepiece movement, timepiece movement and timepiece
CN202310606348.4A CN117170208A (en) 2022-06-02 2023-05-26 Timepiece speed regulating mechanism comprising a speed and slow needle assembly system provided with locking means
JP2023088507A JP2023178244A (en) 2022-06-02 2023-05-30 Timer adjustment member comprising index assembly system provided with lock means
KR1020230070362A KR20230167736A (en) 2022-06-02 2023-05-31 Timepiece regulating member comprising an index-assembly system provided with locking means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22177059.7A EP4286960A1 (en) 2022-06-02 2022-06-02 Timepiece regulator provided with an index-assembly system
EP22215645.7A EP4286961A1 (en) 2022-06-02 2022-12-21 Timepiece regulator provided with a precision index-assembly

Publications (1)

Publication Number Publication Date
EP4286962A1 true EP4286962A1 (en) 2023-12-06

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Application Number Title Priority Date Filing Date
EP23167376.5A Pending EP4286962A1 (en) 2022-06-02 2023-04-11 Timepiece regulating member comprising a regulator assembly provided with locking means

Country Status (5)

Country Link
US (2) US20230393526A1 (en)
EP (1) EP4286962A1 (en)
JP (2) JP2023178233A (en)
KR (1) KR20230167736A (en)
CN (2) CN117170208A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB927464A (en) * 1960-09-10 1963-05-29 Parechoc Sa Watch or clock regulating mechanism
CH521620A (en) * 1968-01-12 1971-12-31 Leo Glocker Paul Device for fixing the outer end of a regulating hairspring in a clockwork movement
EP2876504A1 (en) 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Screwless clock stud holder
EP3304215A1 (en) 2015-06-03 2018-04-11 ETA SA Manufacture Horlogère Suisse Resonator with fine adjustment by index-assembly
CH714791A1 (en) * 2018-03-16 2019-09-30 Hublot Sa Geneve Toothed body for a timepiece.
CH716084A2 (en) * 2019-04-02 2020-10-15 Halter Vianney Device for coupling two clock oscillators.
CH717088A2 (en) * 2020-01-29 2021-07-30 Seiko Watch Kk Balance-spring adjustment mechanism, balance-wheel unit, movement and timepiece.
EP4009115A1 (en) 2020-12-02 2022-06-08 Omega SA Hairspring for timepiece resonator mechanism provided with a means for adjusting rigidity

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB927464A (en) * 1960-09-10 1963-05-29 Parechoc Sa Watch or clock regulating mechanism
CH521620A (en) * 1968-01-12 1971-12-31 Leo Glocker Paul Device for fixing the outer end of a regulating hairspring in a clockwork movement
EP2876504A1 (en) 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Screwless clock stud holder
EP3304215A1 (en) 2015-06-03 2018-04-11 ETA SA Manufacture Horlogère Suisse Resonator with fine adjustment by index-assembly
CH714791A1 (en) * 2018-03-16 2019-09-30 Hublot Sa Geneve Toothed body for a timepiece.
CH716084A2 (en) * 2019-04-02 2020-10-15 Halter Vianney Device for coupling two clock oscillators.
CH717088A2 (en) * 2020-01-29 2021-07-30 Seiko Watch Kk Balance-spring adjustment mechanism, balance-wheel unit, movement and timepiece.
EP4009115A1 (en) 2020-12-02 2022-06-08 Omega SA Hairspring for timepiece resonator mechanism provided with a means for adjusting rigidity

Also Published As

Publication number Publication date
CN220064632U (en) 2023-11-21
US20230393526A1 (en) 2023-12-07
US20230393527A1 (en) 2023-12-07
CN117170208A (en) 2023-12-05
KR20230167736A (en) 2023-12-11
JP2023178244A (en) 2023-12-14
JP2023178233A (en) 2023-12-14

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