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EP2697693B1 - Timepiece movement - Google Patents

Timepiece movement Download PDF

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Publication number
EP2697693B1
EP2697693B1 EP12713163.9A EP12713163A EP2697693B1 EP 2697693 B1 EP2697693 B1 EP 2697693B1 EP 12713163 A EP12713163 A EP 12713163A EP 2697693 B1 EP2697693 B1 EP 2697693B1
Authority
EP
European Patent Office
Prior art keywords
balance
movement
actuating
movement according
pivot axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12713163.9A
Other languages
German (de)
French (fr)
Other versions
EP2697693A1 (en
Inventor
Stephen Forsey
Sébastien Brancucci
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.)
Complitime SA
Original Assignee
Complitime SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Complitime SA filed Critical Complitime SA
Publication of EP2697693A1 publication Critical patent/EP2697693A1/en
Application granted granted Critical
Publication of EP2697693B1 publication Critical patent/EP2697693B1/en
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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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands

Definitions

  • the present invention relates to mechanical timepieces. It relates more particularly to a timepiece movement comprising a support constituting a reference plane, at least one rocker mounted on said support, provided with a serge and intended to oscillate about a pivot axis, and a device for stopping said pendulum, the stop device comprising at least one movable stop member to come into contact with the rocker and block it and a mechanism for actuating said stop element.
  • Such a device for stopping the balance is arranged to stop the oscillation of the balance during the time setting, from the control rod of the watch to start the movement to a precise moment, for example exactly at the time indicated by the hands of the watch.
  • the stop device stops the oscillation of the balance in any position of the cage.
  • Devices of this type are for example described in the international application WO 03/048871 or the patent EP 1 617 305 .
  • the device described in the application WO 03/048871 comprises a movable spring with two elastic branches each terminated by a pad that can bear resiliently against the periphery of the beam to stop it.
  • This movable spring is controlled by the time setting rod.
  • This device has several disadvantages mentioned in the patent EP 1617305 .
  • the realization of the mobile spring is complicated, and this spring, given its great length, also requires a setting difficult to achieve.
  • Another disadvantage lies in the fact that a spring of such a length can easily be deformed under the effect of a shock applied to the watch and thus block inadvertently the pendulum.
  • the use of the wire spring or leaf spring is generally prohibited because it is unsightly.
  • the patent EP 1 617 305 discloses a rocker stop device comprising levers manually controlled and mounted on the cage, capable of coming into contact with the periphery of the rocker to block it when an action is exerted on at least one of said levers by a sliding shoe , arranged outside the cage and controlled manually.
  • This device also has many disadvantages. It includes many parts (levers, pads, foot-screws, sockets, etc.), which means a complex assembly. Some pieces are complex to make, such as stops for skates. In addition, all the components of the stop device of a balance of a vortex are at the periphery of the cage. This represents an additional weight that will disrupt the inertia of the cage.
  • An object of the present invention is therefore to overcome these disadvantages, by providing a rocker stop device to be able to safely, quickly and effectively stop a rocker, even if it is inclined, and it is mounted or not on a tourbillon cage.
  • Another object of the present invention is to provide a balance stop device compact and allowing significant space saving. As a result, the aesthetic aspect of the movement will be improved.
  • Another object of the present invention is to provide a rock stop device for acting on the beam so as to distribute the stresses acting on the beam of the balance shaft and to use a Traditional anti-shock device to absorb a lot of these constraints.
  • a timepiece movement comprising a support constituting a reference plane, at least one rocker mounted on said support, provided with a serge and intended to oscillate around a pivot axis, and a device for stopping said beam, said stop device comprising at least one movable stop element for coming into contact with the rocker and blocking it and a mechanism for actuating said stop element .
  • the stop element is arranged relative to the rocker so that the direction of the force resulting from the action of the stop element against the rocker is inclined at an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis of the balance.
  • the actuating mechanism comprises at least one actuating member movable in a plane not perpendicular to the axis of pivoting of the balance.
  • the actuating mechanism comprises at least one actuating member moving in rotation around an axis or in translation along a determined direction, said axis and said direction forming an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis of the balance.
  • the actuating member can cooperate directly with the stop element, that is to say without intermediate member.
  • the support may be an element of the frame of the movement.
  • the stop element and at least the actuating member of the actuating mechanism may be included in a cylinder in which the balance is inscribed.
  • the rocker support may be a first structure mounted free to rotate, such as a first vortex cage.
  • the stop element and at least the actuating member of the actuating mechanism can be included in a cylinder in which said first structure is inscribed.
  • the first The structure may itself be mounted in a second structure mounted free to rotate, such as a second tourbillon cage.
  • the stop element can be mounted on an element of the frame of the movement or on the support of the balance.
  • the stop element may be a flexible blade or a circular ring mounted to move in translation on an element of the frame of the movement or on the support of the balance.
  • the stop element may be a flexible blade mounted to rotate.
  • the actuating mechanism may comprise a flip-flop controlled by a time-setting rod.
  • the actuating mechanism may comprise at least one actuating ring movable in translation, controlled by a time setting rod and arranged to cause a displacement of the element d 'stop.
  • the actuating ring can be embedded on the first structure mounted free to rotate.
  • the present invention also relates to a timepiece comprising a bottom and a movement as defined above, said movement being arranged so that the axis of pivoting of the balance is not perpendicular to a tangent plane or coincident with said background.
  • the present invention also relates to a timepiece comprising a bottom and a movement as defined above, said movement being arranged so that the axis of pivoting of the balance is perpendicular to a plane tangent or coincident with said bottom.
  • a timepiece movement comprising a frame comprising a frame member 1 forming a reference plane P and a corresponding pendulum support 2, in this variant, to a lower bridge 2a and at an upper deck 2b.
  • the movement also comprises a rocker 3 intended to oscillate about a pivot axis AA and mounted on said support 2 in an inclined manner, so that the pivot axis AA forms a non-zero angle ⁇ with a perpendicular to the reference plane P.
  • the rocker 3 is inclined so that its pivot axis AA is not perpendicular to a tangent plane or here confused with the bottom P 'of the timepiece enclosing the movement. More particularly, in the case of a wristwatch, the pivot axis AA of the balance 3 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece containing the movement of the invention.
  • the balance 3 comprises a serge and balancing screws.
  • the serge is completely closed and ring-shaped. It is obvious that the serge could have open sectors, and have a shape other than circular.
  • the movement also comprises a device for stopping said rocker 3, the stop device comprising at least one movable stop element for coming into contact with the rocker 3 and blocking it and a mechanism for actuating said stop element.
  • the stop element is a flexible blade 4, with a double elbow, arranged under the balance 3.
  • the blade 4 comprises a first free end 4a and a second end 4b slidably mounted, in a translation movement perpendicular to the reference plane P, around a tube 6 integral with the frame member 1 to abut the serge or the screws of the balance 3 or move away.
  • the free end 4a of the blade is parallel to the reference plane P.
  • the actuating mechanism of the stop element or the blade 4 comprises, as actuating members, an actuating ring 8 and knives 10, arranged under the balance.
  • the actuating ring 8 is slidably mounted, in a translation movement perpendicular to the reference plane P, around the tube 6 and cooperates directly with the blade 4.
  • the displacement of the actuating ring 8 is controlled by the displacement of the time setting rod, for example when changing from the neutral position T0 to the time setting position T1.
  • the beveled knives 10 are provided on either side of the actuating ring 8 so that, when they are actuated by the time-setting rod, they slide under the actuating ring 8 in order to slide it around the tube 6.
  • the actuating ring 8 or the knives 10, in accordance with the invention are movable in a plane not perpendicular to the pivot axis AA of the balance 3.
  • the free end 4a of the blade 4 is parallel to the reference plane P during normal operation of the movement.
  • the free end of the blade 4 can be inclined relative to the reference plane P, while respecting the characteristics of the invention, so that, according to the invention, the blade 4 and more specifically its free end 4a is arranged relative to the balance 3 so that the direction of the force F resulting from the action of the blade 4 against the rocker 3 is inclined at an angle ⁇ different from 0 ° and 90 ° by relative to the pivot axis AA of the balance 3, as shown in FIG. figure 1b . That is to say, the direction of the force F resulting from the action of the stop element against the rocker is neither parallel nor perpendicular to the pivot axis AA of the rocker 3.
  • the angle ⁇ is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.
  • the angle ⁇ is equal to the angle ⁇ .
  • the dimension of the blade 4 is such that the blade 4 and at least the actuating ring 8 of the actuating mechanism are included in a cylinder in which the balance 3 is inscribed.
  • the blade 4 is replaced by a circular stop ring slidably mounted on a tube.
  • the diameter of the circular ring is such that the stop ring is likely to come into contact with the lowest point of the balance when it is moved.
  • the knives can be replaced by a rocker or any actuator of the same function for moving the stop member.
  • the operation of the stop device is as follows. In normal times, as shown on the figure 1a the blade 4 is moved away from the rocker 3. To stop the rocker during the time setting, the knives 10 are actuated by means of the time-setting rod so as to lift the actuating ring 8, which in turn raises the blade 4 until the end 4a of the latter comes into contact with the balance 3 and blocks it. As shown in figure 1b the direction of the force F resulting from the action of the blade 4 against the rocker 3 is inclined at an angle ⁇ of about 35 ° with respect to the pivot axis AA of the rocker 3.
  • the actuating ring 8 or the knives 10 move in translation in a plane forming an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis AA of the balance 3.
  • the knives 10 and the actuating ring 8 return to their normal operating position so that the blade 4 moves away from the beam 3 and releases it.
  • the stop device returns to its position as shown on the figure 1a .
  • the rocker arm 13 is mounted directly on the frame member 21 so that its pivot axis AA is perpendicular to the reference plane P and to a plane coinciding or tangent with the bottom P 'of the timepiece enclosing the movement .
  • the frame further comprises a frame member 15, itself placed on the frame member 21, and comprising an inclined bearing surface on which is mounted the flexible blade 14, under the beam 13, similar to the blade 4 of the variant of the figure 1 .
  • the blade 14 is slidably mounted, in a translation movement perpendicular to the bearing surface of the frame member 15, around a tube 16 integral with the frame member 15 to abut against the serge or screws of the pendulum 13 or move away from it.
  • the free end of the blade 14 is parallel to the inclined bearing surface of the frame member 15.
  • the actuating mechanism of the blade 14 comprises, as actuating members, an actuating ring 18 slidably mounted in a translation movement perpendicular to the bearing surface of the frame member 15, around the tube 16 for cooperate directly with the blade 14, and knives 20, similar to those of the figure 1 . These elements are arranged under the pendulum.
  • the actuating ring 18 or the knives 20, according to the invention are movable in a non-parallel plane and not perpendicular to the pivot axis AA of the balance 13.
  • the blade 14 is arranged relative to the balance 13 so that the direction of the force F resulting from the action of the blade 14 against the rocker 13 is inclined at an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis AA of the beam 13, as shown in FIG. figure 2b .
  • the blade 14 may be replaced by a circular stop ring slidably mounted on a tube and having an inclined flange having the same function as the free end of the blade 14.
  • the diameter of the circular ring is such that the inclined flange of the stop ring is likely to come into contact with the balance rod when it is moved.
  • the operation of the stop device is similar to that of the variant of the figure 1 .
  • the stop device according to the invention allows to occupy a limited space hidden under the balance, so as not to harm the aesthetic appearance of the movement.
  • a timepiece movement comprising a frame comprising a frame member 31 forming a reference plane P and two balance supports 32 corresponding, in this variant, to lower bridges 32a and at upper decks 32b.
  • the movement also comprises two rockers 33 intended to oscillate about their respective pivot axis AA.
  • the rockers 33 are mounted on their respective support 32 in an inclined manner, so that their pivot axis AA forms a non-zero angle ⁇ with a perpendicular to the reference plane P or with a plane parallel to P and coincident or tangent with the bottom P 'of the timepiece enclosing the movement.
  • the rockers 33 are inclined relative to each other, their pivot axes are not parallel.
  • the movement also comprises a stopping device of the rockers 33, the stopping device comprising at least one movable stopping element for coming into contact with the rocker 33 and blocking them and a mechanism for actuating said stopping element.
  • the stop element consists of a piece 34, substantially U-shaped, and terminated at each end by a flexible blade 34a. The piece 34 is arranged under the rockers 33.
  • the actuating mechanism of the stop element or of the part 34 comprises, as actuating member, a rocker 38 on which is mounted the piece 34.
  • the rocker 38 is disposed under the rockers 33 and is mounted movably in rotation on the frame member 31 around a pivot 39.
  • the rotation of the rocker 38 is controlled by the movement of the time setting rod to move the piece 34 closer to or away from the rockers 33.
  • the rocker 38 according to the invention, is movable in rotation in a non-perpendicular plane or non-parallel to the pivot axis AA of the rockers 33.
  • the rocker 38 and the piece 34 are positioned under the rockers 33 so that, during the normal operation of the movement, the piece 34 does not interfere with the oscillation of the rockers 33, as shown in FIG. figure 3a , and so that, when stopping the rockers, the rocker 38 having pivoted, the blades 34a of the piece 34 abut against the lowest point of the serge or screws of the rockers 33 to block them, as shown the figure 3b .
  • the rocker 38 and the piece 34 are returned to their initial position, in accordance with the figure 3a , so that the rockers 33 are released.
  • the blades 34a are arranged relative to their respective balance 33 so that the direction of the force F resulting from the action of the blade 34a against its respective balance 33 is inclined at an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis AA of said beam 33, as shown in FIG. figure 3b .
  • the blades 34a are parallel to the reference plane P.
  • each of the rockers can be arranged so that their axis of rotation is inclined in any direction relative to the reference plane P.
  • the rockers can be arranged so that their axes of rotation are parallel to each other.
  • the piece 34 may be replaced by a sliding stop ring mounted in a translational movement perpendicular to the reference plane P.
  • the diameter of the circular ring is such that the stop ring is capable of to come into contact with the lowest point of each beam 33 when it is moved.
  • a part of a timepiece movement comprising a frame comprising a frame member 41 forming a reference plane P parallel to a tangent plane or here confused with the bottom P 'of the timepiece enclosing movement.
  • the movement comprises a simple vortex conventionally comprising a cage 42 constituting a rotatably mounted structure representing a support for a rocker 43.
  • the rocker 43 is intended to oscillate about a pivot axis AA and is mounted in the cage 42 inclined so that the pivot axis AA forms a non-zero angle ⁇ with a perpendicular to the reference plane P, coaxial with the shaft 45 of the cage 42.
  • the cage 42 is itself rotatably mounted on the frame member 41, about its axis defined by the shaft 45.
  • the pivot axis AA of the balance 43 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece containing the movement of the invention.
  • an anti-shock device 46 is disposed at each end of the axis AA of the rocker arm 43.
  • the vortex comprises a movable cage which carries all the organs of the exhaust and, in its center, the regulating member.
  • the pinion of the escape wheel rotates around the seconds wheel which is fixed.
  • the cage is controlled, not by the wheel of the seconds, but by the average wheel (which is not fixed).
  • the term vortex encompasses these two possibilities and more generally any regulating device embarked on a rotating system.
  • the present description is made with reference to a device in which the escape pinion rotates around the fixed seconds wheel, the variants of the invention can be directly transposed to a carousel or other onboard regulating member on a rotating system.
  • the movement comprises a device for stopping said rocker 43, the stop device comprising at least one movable stop element for coming into contact with the rocker arm 43 and blocking it and an actuating mechanism for said rocker element. stop.
  • the stop element is a flexible blade 44, bent, disposed under the rocker 43.
  • the blade 44 comprises a first free end 44a and a second end 44b slidably mounted, in a translation movement perpendicular to the plane of reference P, around the shaft 45 of the cage 42 to abut against the serge or the screws of the balance 43 or move away.
  • the free end 44a of the blade is parallel to the balance 43, that is to say to the plane formed by the beam seam.
  • the mechanism for actuating the stop element or the blade 44 comprises, as actuating member, an actuating ring 48, disposed under the rocker arm 43 and integral in rotation with the shaft 45 of the cage 42 so that said ring 48 is embedded on the cage 42.
  • the actuating ring 48 is slidably mounted around the shaft 45 of the cage 42, in a translation movement perpendicular to the reference plane P, and cooperates directly with the blade 44 which rests on it.
  • the actuating ring 48 is movable in translation in a non-perpendicular plane and not parallel to the pivot axis AA of the rocker arm 43.
  • the displacement of the actuating ring 48 is controlled by the movement of the time setting rod.
  • the blade 44 and more specifically its free end 44a is arranged relative to the rocker arm 43 so that the direction of the force F resulting from the action of the blade 44 against the rocker 43 is inclined at an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis AA of the beam 43, as shown in FIG. figure 4 . That is to say, the direction of the force F resulting from the action of the stop element against the balance 43 is neither parallel nor perpendicular to the pivot axis AA of the balance 43.
  • the angle ⁇ is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.
  • the angle ⁇ is equal to the angle ⁇ .
  • a return spring 49 secured at one of its ends to the shaft 45 of the cage 42 and, at the other end, to the actuating ring 48.
  • the dimensions of the blade 44 and of the actuating ring 48 are such that these elements are included in a cylinder in which the balance 43 is inscribed.
  • the size of the stop device is reduced, which frees the place for other organs.
  • the stop device is hidden under the balance, which improves the aesthetic appearance of the movement.
  • the elements of the stop device are concentrated at the center of the cage and not at the periphery, which will have little or no influence on the inertia of the assembly.
  • the operation of the stop device is as follows. In normal times, as shown on the figure 4 , the blade 44 is spaced from the rocker 43. To stop the rocker 43 during the time setting, the actuating ring 48 is actuated by means of the time setting rod so as to lift. As a result, the blade 44 also lifts until its end 44a comes into contact with the balance 43 and blocks it, by applying a force F in accordance with the invention against the balance. When the time setting is performed, the actuating ring 48 and the blade 44 return to their normal operating position under the action of the return spring 49. Thus, the blade 44 moves away from the balance 43 and releases it. The stop device returns to its position as shown on the figure 4 .
  • the blade 44 is embedded on the vortex cage, rotates around the shaft 45 with the balance 43.
  • the blade 44 and the rocker 43 will always be in the same position relative to each other.
  • the blade 44 is located below the balance.
  • the stop 43 will be fast and accurate, regardless of the position of the balance relative to the frame.
  • the stop device according to the invention by acting on the balance at an angle neither perpendicular nor parallel to its pivot axis, allows to distribute the stresses acting on the beam of the pendulum axis and use shockproof to absorb a lot of the constraints.
  • the figure 5a represents the shock device 46 during normal operation of the pendulum.
  • the tibernum 47 of the axis of the balance 43 is straight with respect to the shockproof device 46.
  • the support of the stop element on the balance according to the force F inclined relative to the axis of the balance 43 causes the pendulum to bow and get in the way, as shown in figure 5b .
  • the chimney 46a of the shockproof device 46 will rise quickly. Indeed, the inclined force applied to the tigeron promotes the movement of the chimney along the inclined plane of the kitten 46b of the shockproof device 46, thus allowing a better distribution of the stress on the tigeron.
  • the shock device 46 works optimally in view of the way in which the rocker is attacked by the stop element. Unlike known devices in which the stress is only radial, the stress applied in this movement of the invention is decomposed into an axial stress and a radial stress. This makes it possible to reduce the radial stress on the pivot.
  • the blade 44 is replaced by a circular stop ring disposed under the beam and under the cage, and mounted on a frame member, movable in translation along a plane parallel to the axis of rotation of the tourbillon cage.
  • the diameter of the circular ring is such that the stop ring is likely to come into contact with the lowest point of the pendulum projecting from the cage when it is moved.
  • the stop ring can be actuated by a rocker controlled by the time setting rod.
  • the circular stop ring is arranged relative to the rocker so that the direction of the force F resulting from the action of the stop ring against the rocker is inclined at an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis AA of the balance.
  • the balance can be arranged so that its axis of rotation is coaxial or coincident with the axis of rotation of the cage.
  • the axis of rotation of the cage may or may not be perpendicular to the reference plane P, the stop element, however, having a shape to meet the characteristics of the invention.
  • the movement according to the invention comprises a frame comprising a frame member 61 forming a reference plane P parallel to a tangent plane or here confused with the bottom of the timepiece enclosing the movement.
  • the movement also includes a double swirl or biaxial tourbillon, which comprises, as described in the patent EP 1 419419 a first cage 62 constituting a support for a rocker 63 and a second cage 65.
  • the rocker 63 is intended to oscillate about a pivot axis AA and is mounted in the first cage 62 so that, in this variant, its axis of pivoting is coaxial with the axis of rotation of the first cage 62 pivotally mounted in the second cage 65.
  • the latter is itself pivotally mounted on the frame member 61 along an axis BB perpendicular to the reference plane P.
  • L pivot axis AA forms a non-zero angle ⁇ and different from 90 ° with the axis BB.
  • pivot axis AA of the rocker 63 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece enclosing the movement of the invention.
  • the second cage 65 comprises in particular an upper support 65a and a lower support 65b intended to receive the first cage 62.
  • the movement comprises a device for stopping said rocker 63, the stop device comprising at least one mobile stop element for coming into contact with the rocker 63 and blocking it and a mechanism for actuating said rocker element. stop.
  • the stop element is a flexible blade 64, bent, disposed under the rocker 63.
  • the blade 64 comprises a first free end 64a and a second end 64b arranged to be secured to the first cage 62.
  • said blade 64 is embedded on the first cage 62 and its free end 64a is able to move, by elastic deformation of the blade, in a translation movement perpendicular to the reference plane P to abut against the rocker 63 or away from it .
  • the free end 64a of the blade is parallel to the rocker 63, that is to say to the plane formed by the beam serge.
  • the actuating mechanism of the stop member or the blade 64 comprises various actuating members, namely a pin 66, two actuating rings 67 and 68, and rods 69.
  • the pin 66 is disposed between the first actuating ring 67 and the blade 64, so as to cooperate directly therewith.
  • the pin 66 is disposed parallel to the axis BB, and is arranged to be integral in rotation with the first cage 62, and thus be embedded thereon, with the blade 64.
  • the pin 66 is arranged to be movable in translation, relative to the blade 64, in a non-perpendicular plane and not parallel to the pivot axis AA of the rocker 63. In the normal operating position, the pin 66 is disposed just below the blade 64 of so as to be able to push the blade 64 when said pin 66 is moved.
  • the first actuating ring 67 is disposed under the pin 66, in the lower support 65b of the second cage 65. On the first actuating ring 67 are mounted integral with the rods 69. The first actuating ring 67 and the rods 69 are positioned coaxially with the pivot axis AA of the balance and the first cage 62. The first actuating ring 67 and the rods 69 are arranged to be integral in rotation with the second cage.
  • first actuating ring 67 and the rods 69 are arranged to be slidably mounted around the shaft of the first cage 62, in a translation movement parallel to the axis AA.
  • the first actuating ring 67 is disposed just below the pin 66 so as to be able to move it when said first actuating ring 67 is itself moved.
  • the flange of the first actuating ring 67 in contact with the pin 66 is chamfered to improve contact with the pin 66 when the first actuating ring 67 is moved by means of the second actuating ring 68.
  • the second actuating ring 68 is disposed on the frame member 61 under the lower support 65b of the second cage 65, coaxially with its axis BB.
  • the second actuating ring 68 comprises a recess 70 into which the ends of the rods 69 which rotate with the second cage 65 can flow.
  • the second actuating ring 68 and the rods 69 are arranged so that, during normal operation of the movement, the rods 69 are not in contact with the hollow 70.
  • the second actuating ring 68 is arranged to be integral in rotation with the frame member 61 and to be slidably mounted around the shaft of the second cage 65, in a translation movement parallel to the axis BB.
  • the displacement of the second actuating ring 68 is controlled by the movement of the time setting rod.
  • the blade 64 and more specifically its free end 64a is arranged relative to the rocker 63 so that the direction of the force F resulting from the action of the blade 64 against the rocker 63 is inclined according to a ⁇ angle different from 0 ° and 90 ° with respect to the pivot axis AA of the balance 63, as shown in FIG. figure 6 . That is to say, the direction of the force F resulting from the action of the stop element against the rocker 63 is neither parallel nor perpendicular to the pivot axis AA of the rocker 63.
  • the angle ⁇ is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.
  • the angle ⁇ is equal to the angle ⁇ .
  • the dimensions of the various elements of the stop device are such that these elements are included in a cylinder in which the biaxial vortex is inscribed.
  • the size of the stop device is reduced, which frees up space for other organs.
  • the stop device is hidden under the balance, which improves the aesthetic appearance of the movement.
  • the elements of the stop device are concentrated at the center of the first cage and not at the periphery, which will have little or no influence on the inertia of the assembly.
  • the operation of the stop device is as follows. Normally, the blade 64 is separated from the rocker 63. To stop the rocker 63 during the time setting, the second actuating ring 68 is actuated by means of the time setting rod so as to lift it. As a result, the second actuating ring 68 comes into contact with the rods 69, and moves them so that the first actuating ring 67 also moves towards the pin 66. The latter is then raised in such a manner as to press the flexible blade 64 and deform it until its free end 64a comes into contact with the rocker 63 and blocks it, by applying a force F in accordance with the invention against the balance.
  • the figure 7 represents a variant of the device of the figure 6 .
  • This variant corresponds to the definition of the invention according to which the actuating mechanism comprises at least one actuating member moving in translation in a plane forming an angle ⁇ different from 0 ° and 90 ° with respect to the axis. pivoting of the balance.
  • the pin 76 is disposed parallel to the pivot axis AA of the balance 73 and is therefore parallel to the axis of the first actuating ring 77 and the rods 79.
  • the blade 74, the pin 76, the first actuating ring 77 and the rods 79 are actuated by the displacement of the second actuating ring 78, similar to the ring 68 of the figure 6 .
  • Said second actuating ring 78 moving in a translation movement parallel to the axis BB constitutes the actuating member which moves in translation in a plane forming an angle ⁇ different from 0 ° and 90 ° relative to the pivot axis of the balance 73.
  • the pivot axis AA of the beam may not be coaxial with the axis of rotation of the first cage.
  • the present invention is not limited to the embodiments described.
  • the shape and the positioning of the stop element or the balance support may vary, while respecting the characteristics of the invention.
  • the flat blades may be replaced by blades having an inclined free end, chosen, however, so as to meet the characteristics of the invention.
  • the invention is also applicable to a system comprising a third structure movable in rotation, for example a third tourbillon cage.

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Description

Domaine techniqueTechnical area

La présente invention se rapporte aux pièces d'horlogerie mécanique. Elle concerne plus particulièrement un mouvement de pièce d'horlogerie comprenant un support constituant un plan de référence, au moins un balancier monté sur ledit support, pourvu d'une serge et destiné à osciller autour d'un axe de pivotement, et un dispositif d'arrêt dudit balancier, le dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier et le bloquer et un mécanisme d'actionnement dudit élément d'arrêt.The present invention relates to mechanical timepieces. It relates more particularly to a timepiece movement comprising a support constituting a reference plane, at least one rocker mounted on said support, provided with a serge and intended to oscillate about a pivot axis, and a device for stopping said pendulum, the stop device comprising at least one movable stop member to come into contact with the rocker and block it and a mechanism for actuating said stop element.

Etat de la techniqueState of the art

Un tel dispositif d'arrêt du balancier, parfois appelé "stop-seconde", est agencé pour arrêter l'oscillation du balancier pendant la mise à l'heure, à partir de la tige de commande de la montre afin de démarrer le mouvement à un instant précis, par exemple exactement à l'heure indiquée par les aiguilles de la montre.Such a device for stopping the balance, sometimes called "stop-second", is arranged to stop the oscillation of the balance during the time setting, from the control rod of the watch to start the movement to a precise moment, for example exactly at the time indicated by the hands of the watch.

Plus spécifiquement dans le cas où le balancier est monté dans la cage d'un tourbillon, le dispositif d'arrêt permet d'arrêter l'oscillation du balancier dans n'importe quelle position de la cage.More specifically in the case where the rocker is mounted in the cage of a vortex, the stop device stops the oscillation of the balance in any position of the cage.

Des dispositifs de ce type sont par exemple décrits dans la demande internationale WO 03/048871 ou le brevet EP 1 617 305 . Le dispositif décrit dans la demande WO 03/048871 comprend un ressort mobile à deux branches élastiques terminées chacune par un patin pouvant aller s'appuyer élastiquement contre la périphérie du balancier pour l'arrêter. Ce ressort mobile est commandé par la tige de mise à l'heure. Ce dispositif présente plusieurs inconvénients évoqués dans le brevet EP 1617 305 . La réalisation du ressort mobile est compliquée, et ce ressort, vu sa grande longueur, demande en outre un réglage difficile à réaliser. Un autre inconvénient réside dans le fait qu'un ressort d'une telle longueur peut facilement se déformer sous l'effet d'un choc appliqué à la montre et bloquer ainsi intempestivement le balancier. De plus, dans l'horlogerie de très haut de gamme, l'emploi du ressort-fil ou ressort-lame est généralement proscrit, car inesthétique.Devices of this type are for example described in the international application WO 03/048871 or the patent EP 1 617 305 . The device described in the application WO 03/048871 comprises a movable spring with two elastic branches each terminated by a pad that can bear resiliently against the periphery of the beam to stop it. This movable spring is controlled by the time setting rod. This device has several disadvantages mentioned in the patent EP 1617305 . The realization of the mobile spring is complicated, and this spring, given its great length, also requires a setting difficult to achieve. Another disadvantage lies in the fact that a spring of such a length can easily be deformed under the effect of a shock applied to the watch and thus block inadvertently the pendulum. Moreover, in very high-end watchmaking, the use of the wire spring or leaf spring is generally prohibited because it is unsightly.

Le brevet EP 1 617 305 décrit un dispositif d'arrêt du balancier comprenant des leviers commandés manuellement et montés sur la cage, susceptibles d'entrer en contact avec la périphérie du balancier pour le bloquer quand une action est exercée sur l'un au moins desdits leviers par un sabot coulissant, disposé à l'extérieur de la cage et commandé manuellement.The patent EP 1 617 305 discloses a rocker stop device comprising levers manually controlled and mounted on the cage, capable of coming into contact with the periphery of the rocker to block it when an action is exerted on at least one of said levers by a sliding shoe , arranged outside the cage and controlled manually.

Ce dispositif présente lui aussi de nombreux inconvénients. Il comprend de nombreuses pièces (leviers, patins, pied-vis, douilles, etc.), ce qui signifie un montage complexe. Certaines pièces sont complexes à réaliser, telles que les arrêts pour les patins. De plus, tous les éléments composant le dispositif d'arrêt d'un balancier d'un tourbillon se trouvent en périphérie de la cage. Cela représente un poids supplémentaire qui va perturber l'inertie de la cage.This device also has many disadvantages. It includes many parts (levers, pads, foot-screws, sockets, etc.), which means a complex assembly. Some pieces are complex to make, such as stops for skates. In addition, all the components of the stop device of a balance of a vortex are at the periphery of the cage. This represents an additional weight that will disrupt the inertia of the cage.

D'autre part, aucun des systèmes décrits dans la demande WO 03/048871 ou dans le brevet EP 1 617 305 , ne peut être utilisé dans le cas d'un balancier incliné utilisé dans une construction comportant un double tourbillon. Le système décrit dans le brevet EP 1 617 305 ou dans la publication WO 2008/101802 pourrait être utilisé dans le cas d'un balancier incliné simple ou d'un tourbillon simple incliné, mais en agissant toujours de manière radiale sur ce dernier. Notamment, la construction décrite dans la publication WO 2008/101802 prévoit un ressort à deux bras qui peut être déplacé d'une position normale à une position de blocage dans laquelle il est appliqué élastiquement sur le contour radialement périphérique du balancier. De même, dans le brevet EP 1 617 305 , il est précisé qu'un patin monté sur le levier bloque le balancier par friction en s'appuyant radialement contre un élément du balancier. De plus, l'arrêt du balancier se fait depuis la périphérie, ce qui nécessite de prévoir un espace important autour du balancier pour le montage du dispositif d'arrêt. Ce dernier, prévu à la périphérie du balancier, est particulièrement visible, et nuit à l'aspect esthétique du mouvement. Enfin, l'élément d'arrêt agit radialement à l'axe de pivotement du balancier, de sorte que les contraintes agissant radialement sur le tigeron de l'axe de pivotement du balancier sont importantes et le fragilisent.On the other hand, none of the systems described in the application WO 03/048871 or in the patent EP 1 617 305 , can not be used in the case of an inclined beam used in a construction with a double vortex. The system described in the patent EP 1 617 305 or in the publication WO 2008/101802 could be used in the case of a single inclined beam or a single tilted vortex, but still acting radially on it. In particular, the construction described in the publication WO 2008/101802 provides a spring with two arms that can be moved from a normal position to a locking position in which it is elastically applied to the radially peripheral contour of the beam. Similarly, in the patent EP 1 617 305 , it is specified that a pad mounted on the lever blocks the balance by friction by leaning radially against an element of the balance. In addition, the suspension of the balance is from the periphery, which requires to provide a large space around the balance for mounting the stop device. The latter, provided on the periphery of the pendulum, is particularly visible, and detracts from the aesthetic aspect of the movement. Finally, the stop element acts radially to the axis of pivoting of the balance, so that the stresses acting radially on the shank of the pivot axis of the balance are important and weaken it.

On connait également le brevet CH 270 889 qui concerne un dispositif assurant le lancement d'un balancier lors du remontage d'un mouvement d'horlogerie lorsque ce dernier est arrêté. Ce dispositif comprend une tige flexible agencée pour venir en contact avec le balancier, de sorte que la tige se fléchit et assure une bonne application contre le balancier. Puis la tige donne une impulsion au balancier, qu'elle quitte ensuite en le laissant libre d'osciller. Toutefois la tige flexible ne peut pas être considérée comme un élément d'arrêt du mécanisme stop-balancier au départ, puisque le balancier est arrêté. De plus, dans le cas où le remontage du mouvement exige plusieurs tours, et donc plusieurs contacts de la tige flexible avec le balancier, il s'avère que ladite tige flexible n'agit pas comme un stop-balancier, et n'arrête pas le balancier avant de redonner une impulsion. Le balancier ne sera donc pas arrêté tout au long de l'opération de remontage.We also know the patent CH 270 889 a device for launching a rocker when reassembling a watch movement when it is stopped. This device comprises a flexible rod arranged to come into contact with the balance, so that the rod bends and ensures good application against the balance. Then the stem gives an impulse to the pendulum, which it leaves then leaving it free to oscillate. However, the flexible rod can not be considered as a stopping element of the stop-balance mechanism at the start, since the pendulum is stopped. In addition, in the case where the reassembly of the movement requires several turns, and therefore several contacts of the flexible rod with the balance, it turns out that said flexible rod does not act as a stop-balance, and does not stop the balance before giving an impulse. The pendulum will not be stopped throughout the reassembly operation.

On connait également le brevet FR 687 649 qui décrit plusieurs variantes de stop-balancier, comprenant un levier à renversement actionné par la tige de remontoir et portant une lame de ressort constituant l'élément d'arrêt. Une autre variante est prévue selon laquelle la tige de remontoir agit directement sur la lame de ressort. Même si le levier à renversement et la tige de remontoir peuvent être considérées comme des organes d'actionnement, ces organes se déplacent dans des plans perpendiculaires à l'axe du balancier.We also know the patent FR 687 649 which describes several variants of stop-balance, comprising a reversing lever actuated by the winding stem and carrying a leaf spring constituting the stop element. Another variant is provided according to which the winding stem acts directly on the leaf spring. Although the overturning lever and the winding stem can be considered as actuating members, these bodies move in planes perpendicular to the axis of the balance.

Finalement, le document CH 700 046 dévoile encore un mouvement comprenant un stop-balancier.Finally, the document CH 700 046 still reveals a movement including a stop-balance.

Un but de la présente invention est donc de pallier ces inconvénients, en proposant un dispositif d'arrêt de balancier permettant de pouvoir arrêter de manière sure, rapide et efficace un balancier, même si celui-ci est incliné, et qu'il soit monté ou non sur une cage de tourbillon.An object of the present invention is therefore to overcome these disadvantages, by providing a rocker stop device to be able to safely, quickly and effectively stop a rocker, even if it is inclined, and it is mounted or not on a tourbillon cage.

Un autre but de la présente invention est de proposer un dispositif d'arrêt de balancier peu encombrant, et permettant un gain de place important. De ce fait, l'aspect esthétique du mouvement sera amélioré.Another object of the present invention is to provide a balance stop device compact and allowing significant space saving. As a result, the aesthetic aspect of the movement will be improved.

Un autre but de la présente invention est de proposer un dispositif d'arrêt de balancier permettant d'agir sur le balancier de manière à répartir les contraintes qui agissent sur le tigeron de l'axe du balancier et d'utiliser un dispositif antichoc traditionnel pour absorber une grande partie de ces contraintes.Another object of the present invention is to provide a rock stop device for acting on the beam so as to distribute the stresses acting on the beam of the balance shaft and to use a Traditional anti-shock device to absorb a lot of these constraints.

Divulgation de l'inventionDisclosure of the invention

A cet effet, et conformément à la présente invention, il est proposé un mouvement de pièce d'horlogerie comprenant un support constituant un plan de référence, au moins un balancier monté sur ledit support, pourvu d'une serge et destiné à osciller autour d'un axe de pivotement, et un dispositif d'arrêt dudit balancier, ledit dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier et le bloquer et un mécanisme d'actionnement dudit élément d'arrêt.For this purpose, and in accordance with the present invention, there is proposed a timepiece movement comprising a support constituting a reference plane, at least one rocker mounted on said support, provided with a serge and intended to oscillate around a pivot axis, and a device for stopping said beam, said stop device comprising at least one movable stop element for coming into contact with the rocker and blocking it and a mechanism for actuating said stop element .

Selon l'invention, l'élément d'arrêt est agencé par rapport au balancier de sorte que la direction de la force résultant de l'action de l'élément d'arrêt contre le balancier est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement du balancier. En outre, le mécanisme d'actionnement comprend au moins un organe d'actionnement mobile dans un plan non perpendiculaire à l'axe de pivotement du balancier.According to the invention, the stop element is arranged relative to the rocker so that the direction of the force resulting from the action of the stop element against the rocker is inclined at an angle α different from 0 ° and 90 ° relative to the pivot axis of the balance. In addition, the actuating mechanism comprises at least one actuating member movable in a plane not perpendicular to the axis of pivoting of the balance.

Selon une autre variante de réalisation, le mécanisme d'actionnement comprend au moins un organe d'actionnement se déplaçant en rotation autour d'un axe ou en translation selon une direction déterminée, ledit axe et ladite direction formant un angle α différent de 0° et de 90° par rapport à l'axe de pivotement du balancier.According to another variant embodiment, the actuating mechanism comprises at least one actuating member moving in rotation around an axis or in translation along a determined direction, said axis and said direction forming an angle α different from 0 ° and 90 ° relative to the pivot axis of the balance.

Selon l'une ou l'autre des variantes, l'organe d'actionnement peut coopérer directement avec l'élément d'arrêt, c'est-à-dire sans organe intermédiaire.According to one or other of the variants, the actuating member can cooperate directly with the stop element, that is to say without intermediate member.

Selon l'une ou l'autre des variantes, le support peut être un élément du bâti du mouvement. D'une manière avantageuse, l'élément d'arrêt et au moins l'organe d'actionnement du mécanisme d'actionnement peuvent être inclus dans un cylindre dans lequel est inscrit le balancier.According to one or other of the variants, the support may be an element of the frame of the movement. Advantageously, the stop element and at least the actuating member of the actuating mechanism may be included in a cylinder in which the balance is inscribed.

Selon une autre possibilité, le support de balancier peut être une première structure montée libre en rotation, telle qu'une première cage de tourbillon. D'une manière avantageuse, l'élément d'arrêt et au moins l'organe d'actionnement du mécanisme d'actionnement peuvent être inclus dans un cylindre dans lequel est inscrite ladite première structure. La première structure peut être elle-même montée dans une deuxième structure montée libre en rotation, telle qu'une deuxième cage de tourbillon.According to another possibility, the rocker support may be a first structure mounted free to rotate, such as a first vortex cage. Advantageously, the stop element and at least the actuating member of the actuating mechanism can be included in a cylinder in which said first structure is inscribed. The first The structure may itself be mounted in a second structure mounted free to rotate, such as a second tourbillon cage.

Selon l'une ou l'autre des variantes, l'élément d'arrêt peut être monté sur un élément du bâti du mouvement ou sur le support du balancier.According to either variant, the stop element can be mounted on an element of the frame of the movement or on the support of the balance.

D'une manière avantageuse, l'élément d'arrêt peut être une lame flexible ou une bague circulaire montée mobile en translation sur un élément du bâti du mouvement ou sur le support du balancier. Selon d'autres variantes, l'élément d'arrêt peut être une lame flexible montée mobile en rotation.Advantageously, the stop element may be a flexible blade or a circular ring mounted to move in translation on an element of the frame of the movement or on the support of the balance. According to other variants, the stop element may be a flexible blade mounted to rotate.

Selon l'une ou l'autre des variantes, le mécanisme d'actionnement peut comprendre une bascule commandée par une tige de mise à l'heure.According to either variant, the actuating mechanism may comprise a flip-flop controlled by a time-setting rod.

Selon l'une ou l'autre des variantes, le mécanisme d'actionnement peut comprendre au moins une bague d'actionnement mobile en translation, commandée par une tige de mise à l'heure et agencée pour entrainer un déplacement de l'élément d'arrêt.According to either variant, the actuating mechanism may comprise at least one actuating ring movable in translation, controlled by a time setting rod and arranged to cause a displacement of the element d 'stop.

Dans le cas d'un tourbillon, la bague d'actionnement peut être embarquée sur la première structure montée libre en rotation.In the case of a vortex, the actuating ring can be embedded on the first structure mounted free to rotate.

La présente invention concerne également une pièce d'horlogerie comprenant un fond et un mouvement tel que défini ci-dessus, ledit mouvement étant disposé de sorte que l'axe de pivotement du balancier n'est pas perpendiculaire à un plan tangent ou confondu avec ledit fond.The present invention also relates to a timepiece comprising a bottom and a movement as defined above, said movement being arranged so that the axis of pivoting of the balance is not perpendicular to a tangent plane or coincident with said background.

La présente invention concerne également une pièce d'horlogerie comprenant un fond et un mouvement tel que défini ci-dessus, ledit mouvement étant disposé de sorte que l'axe de pivotement du balancier est perpendiculaire à un plan tangent ou confondu avec ledit fond.The present invention also relates to a timepiece comprising a bottom and a movement as defined above, said movement being arranged so that the axis of pivoting of the balance is perpendicular to a plane tangent or coincident with said bottom.

Brève description des dessinsBrief description of the drawings

L'invention sera mieux comprise à la lecture de la description qui va suivre, de différents modes de réalisation, donnés à titre d'exemple et faits en référence aux dessins dans lesquels:

  • les figures 1a et 1b représentent des vues en coupe schématisées d'un balancier incliné et d'un dispositif d'arrêt sous la forme d'une lame flexible mobile en translation, respectivement en position de fonctionnement normal du mouvement et en position d'arrêt du balancier;
  • les figures 2a et 2b représentent des vues en coupe schématisées d'un balancier simple à plat et d'un dispositif d'arrêt sous la forme d'une lame mobile en translation, respectivement en position de fonctionnement normal du mouvement et en position d'arrêt du balancier;
  • les figures 3a et 3b représentent des vues isométriques de deux balanciers inclinés et d'un dispositif d'arrêt sous la forme d'une lame flexible mobile en rotation, respectivement en position de fonctionnement normal du mouvement et en position d'arrêt du balancier;
  • la figure 4 représente une vue isométrique d'un tourbillon simple comprenant un balancier incliné et un élément d'arrêt embarqué sur la cage;
  • les figures 5a et 5b représentent des vues d'un dispositif antichoc utilisé dans le mouvement de l'invention, respectivement avant et après déformation;
  • la figure 6 représente une vue isométrique d'un double tourbillon incliné; et
  • la figure 7 représente une autre variante de la figure 6.
The invention will be better understood on reading the description which follows, of various embodiments, given by way of example and with reference to the drawings in which:
  • the figures 1a and 1b are schematic sectional views of an inclined beam and a stop device in the form of a flexible blade movable in translation, respectively in position of normal operation of the movement and in the stop position of the balance;
  • the Figures 2a and 2b are schematic sectional views of a single flat beam and a stop device in the form of a blade movable in translation, respectively in the normal operating position of the movement and in the stop position of the beam;
  • the figures 3a and 3b represent isometric views of two inclined pendulums and a stop device in the form of a flexible blade movable in rotation, respectively in the normal operating position of the movement and in the stop position of the beam;
  • the figure 4 represents an isometric view of a simple vortex comprising an inclined beam and a stop element embedded on the cage;
  • the figures 5a and 5b represent views of an anti-shock device used in the movement of the invention, respectively before and after deformation;
  • the figure 6 represents an isometric view of an inclined double vortex; and
  • the figure 7 represents another variant of the figure 6 .

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

En référence aux figures 1a et 1b, il est représenté de manière schématique une partie d'un mouvement de pièce d'horlogerie comprenant un bâti comportant un élément de bâti 1 formant un plan de référence P et un support de balancier 2 correspondant, dans cette variante, à un pont inférieur 2a et à un pont supérieur 2b. Le mouvement comprend également un balancier 3 destiné à osciller autour d'un axe de pivotement AA et monté sur ledit support 2 de manière inclinée, de sorte que l'axe de pivotement AA forme un angle β non nul avec une perpendiculaire au plan de référence P.With reference to figures 1a and 1b it is schematically represented a part of a timepiece movement comprising a frame comprising a frame member 1 forming a reference plane P and a corresponding pendulum support 2, in this variant, to a lower bridge 2a and at an upper deck 2b. The movement also comprises a rocker 3 intended to oscillate about a pivot axis AA and mounted on said support 2 in an inclined manner, so that the pivot axis AA forms a non-zero angle β with a perpendicular to the reference plane P.

Plus généralement, le balancier 3 est incliné de sorte que son axe de pivotement AA n'est pas perpendiculaire à un plan tangent ou ici confondu avec le fond P' de la pièce d'horlogerie renfermant le mouvement. Plus particulièrement, dans le cas d'une montre bracelet, l'axe de pivotement AA du balancier 3 n'est pas perpendiculaire à un plan adjacent au poignet d'un utilisateur portant la pièce d'horlogerie renfermant le mouvement de l'invention.More generally, the rocker 3 is inclined so that its pivot axis AA is not perpendicular to a tangent plane or here confused with the bottom P 'of the timepiece enclosing the movement. More particularly, in the case of a wristwatch, the pivot axis AA of the balance 3 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece containing the movement of the invention.

Traditionnellement, le balancier 3 comprend une serge et des vis d'équilibrage. Dans les variantes représentées, la serge est totalement fermée et de forme annulaire. Il est bien évident que la serge pourrait comporter des secteurs ouverts, et avoir une forme autre que circulaire.Traditionally, the balance 3 comprises a serge and balancing screws. In the variants shown, the serge is completely closed and ring-shaped. It is obvious that the serge could have open sectors, and have a shape other than circular.

Le mouvement comporte également un dispositif d'arrêt dudit balancier 3, le dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier 3 et le bloquer et un mécanisme d'actionnement dudit élément d'arrêt. Dans cette variante, l'élément d'arrêt est une lame flexible 4, à double coude, disposée sous le balancier 3. La lame 4 comprend une première extrémité libre 4a et une seconde extrémité 4b montée coulissante, selon un mouvement de translation perpendiculaire au plan de référence P, autour d'un tube 6 solidaire de l'élément de bâti 1 pour buter contre la serge ou les vis du balancier 3 ou s'en éloigner. Lors du fonctionnement normal du mouvement, et dans la présente variante, l'extrémité libre 4a de la lame est parallèle au plan de référence P.The movement also comprises a device for stopping said rocker 3, the stop device comprising at least one movable stop element for coming into contact with the rocker 3 and blocking it and a mechanism for actuating said stop element. In this variant, the stop element is a flexible blade 4, with a double elbow, arranged under the balance 3. The blade 4 comprises a first free end 4a and a second end 4b slidably mounted, in a translation movement perpendicular to the reference plane P, around a tube 6 integral with the frame member 1 to abut the serge or the screws of the balance 3 or move away. During normal operation of the movement, and in the present variant, the free end 4a of the blade is parallel to the reference plane P.

Le mécanisme d'actionnement de l'élément d'arrêt ou de la lame 4 comprend, comme organes d'actionnement, une bague d'actionnement 8 et des couteaux 10, disposés sous le balancier. La bague d'actionnement 8 est montée coulissante, selon un mouvement de translation perpendiculaire au plan de référence P, autour du tube 6 et coopère directement avec la lame 4. Le déplacement de la bague d'actionnement 8 est commandé par le déplacement de la tige de mise à l'heure, par exemple lors du passage de la position neutre T0 à la position de mise à l'heure T1. Plus spécifiquement, les couteaux biseautés 10 sont prévus de part et d'autre de la bague d'actionnement 8 pour, lorsqu'ils sont actionnés par la tige de mise à l'heure, se glisser sous la bague d'actionnement 8 afin de la faire coulisser autour du tube 6. Ainsi, la bague d'actionnement 8 ou les couteaux 10, conformément à l'invention, sont mobiles dans un plan non perpendiculaire à l'axe de pivotement AA du balancier 3.The actuating mechanism of the stop element or the blade 4 comprises, as actuating members, an actuating ring 8 and knives 10, arranged under the balance. The actuating ring 8 is slidably mounted, in a translation movement perpendicular to the reference plane P, around the tube 6 and cooperates directly with the blade 4. The displacement of the actuating ring 8 is controlled by the displacement of the time setting rod, for example when changing from the neutral position T0 to the time setting position T1. More specifically, the beveled knives 10 are provided on either side of the actuating ring 8 so that, when they are actuated by the time-setting rod, they slide under the actuating ring 8 in order to slide it around the tube 6. Thus, the actuating ring 8 or the knives 10, in accordance with the invention, are movable in a plane not perpendicular to the pivot axis AA of the balance 3.

Dans la variante représentée, l'extrémité libre 4a de la lame 4 est parallèle au plan de référence P lors du fonctionnement normal du mouvement. Dans une autre variante non représentée, l'extrémité libre de la lame 4 peut être inclinée par rapport au plan de référence P, en respectant toutefois les caractéristiques de l'invention, de sorte que, conformément à l'invention, la lame 4 et plus spécifiquement son extrémité libre 4a est agencée par rapport au balancier 3 de sorte que la direction de la force F résultant de l'action de la lame 4 contre le balancier 3 est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier 3, comme le montre la figure 1b. C'est-à-dire que la direction de la force F résultant de l'action de l'élément d'arrêt contre le balancier n'est ni parallèle ni perpendiculaire à l'axe de pivotement AA du balancier 3.In the variant shown, the free end 4a of the blade 4 is parallel to the reference plane P during normal operation of the movement. In another variant not shown, the free end of the blade 4 can be inclined relative to the reference plane P, while respecting the characteristics of the invention, so that, according to the invention, the blade 4 and more specifically its free end 4a is arranged relative to the balance 3 so that the direction of the force F resulting from the action of the blade 4 against the rocker 3 is inclined at an angle α different from 0 ° and 90 ° by relative to the pivot axis AA of the balance 3, as shown in FIG. figure 1b . That is to say, the direction of the force F resulting from the action of the stop element against the rocker is neither parallel nor perpendicular to the pivot axis AA of the rocker 3.

De préférence, l'angle α est compris entre 10° et 80°, et plus préférentiellement entre 20° et 70°.Preferably, the angle α is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.

Dans la variante représentée, l'angle α est égal à l'angle β.In the variant shown, the angle α is equal to the angle β.

La dimension de la lame 4 est telle que la lame 4 et au moins la bague d'actionnement 8 du mécanisme d'actionnement sont inclus dans un cylindre dans lequel est inscrit le balancier 3.The dimension of the blade 4 is such that the blade 4 and at least the actuating ring 8 of the actuating mechanism are included in a cylinder in which the balance 3 is inscribed.

Dans une autre variante non représentée, la lame 4 est remplacée par une bague d'arrêt circulaire montée coulissante sur un tube. Le diamètre de la bague circulaire est tel que la bague d'arrêt est susceptible d'entrer en contact avec le point le plus bas du balancier lorsqu'elle est déplacée.In another variant not shown, the blade 4 is replaced by a circular stop ring slidably mounted on a tube. The diameter of the circular ring is such that the stop ring is likely to come into contact with the lowest point of the balance when it is moved.

Par ailleurs, les couteaux peuvent être remplacés par une bascule ou tout organe d'actionnement de même fonction permettant le déplacement de l'élément d'arrêt.Furthermore, the knives can be replaced by a rocker or any actuator of the same function for moving the stop member.

Le fonctionnement du dispositif d'arrêt est le suivant. En temps normal, tel que représenté sur la figure 1a, la lame 4 est écartée du balancier 3. Pour arrêter le balancier lors de la mise à l'heure, les couteaux 10 sont actionnés au moyen de la tige de mise à l'heure de manière à soulever la bague d'actionnement 8, qui à son tour, soulève la lame 4 jusqu'à ce que l'extrémité 4a de cette dernière entre en contact avec le balancier 3 et le bloque. Comme le montre la figure 1b, la direction de la force F résultant de l'action de la lame 4 contre le balancier 3 est inclinée selon un angle α d'environ 35° par rapport à l'axe de pivotement AA du balancier 3. Selon une autre définition de l'invention, la bague d'actionnement 8 ou les couteaux 10 se déplacent en translation dans un plan formant un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier 3. Lorsque la mise à l'heure est effectuée, les couteaux 10 et la bague d'actionnement 8 reviennent dans leur position de fonctionnement normal de sorte que la lame 4 s'éloigne du balancier 3 et le libère. Le dispositif d'arrêt reprend sa position telle que représentée sur la figure 1a.The operation of the stop device is as follows. In normal times, as shown on the figure 1a the blade 4 is moved away from the rocker 3. To stop the rocker during the time setting, the knives 10 are actuated by means of the time-setting rod so as to lift the actuating ring 8, which in turn raises the blade 4 until the end 4a of the latter comes into contact with the balance 3 and blocks it. As shown in figure 1b the direction of the force F resulting from the action of the blade 4 against the rocker 3 is inclined at an angle α of about 35 ° with respect to the pivot axis AA of the rocker 3. According to another definition of the invention, the actuating ring 8 or the knives 10 move in translation in a plane forming an angle α different from 0 ° and 90 ° relative to the pivot axis AA of the balance 3. When the setting hour is performed, the knives 10 and the actuating ring 8 return to their normal operating position so that the blade 4 moves away from the beam 3 and releases it. The stop device returns to its position as shown on the figure 1a .

Dans la variante représentée sur les figures 2a et 2b, le balancier 13 est monté directement sur l'élément de bâti 21 de sorte que son axe de pivotement AA est perpendiculaire au plan de référence P et à un plan confondu ou tangent avec le fond P' de la pièce d'horlogerie renfermant le mouvement.In the variant shown on the Figures 2a and 2b , the rocker arm 13 is mounted directly on the frame member 21 so that its pivot axis AA is perpendicular to the reference plane P and to a plane coinciding or tangent with the bottom P 'of the timepiece enclosing the movement .

Dans cette variante, le bâti comprend en outre un élément de bâti 15, lui-même posé sur l'élément de bâti 21, et comprenant une surface d'appui inclinée sur laquelle est montée la lame flexible 14, sous le balancier 13, similaire à la lame 4 de la variante de la figure 1. La lame 14 est montée coulissante, selon un mouvement de translation perpendiculaire à la surface d'appui de l'élément de bâti 15, autour d'un tube 16 solidaire de l'élément de bâti 15 pour buter contre la serge ou les vis du balancier 13 ou s'en éloigner.In this variant, the frame further comprises a frame member 15, itself placed on the frame member 21, and comprising an inclined bearing surface on which is mounted the flexible blade 14, under the beam 13, similar to the blade 4 of the variant of the figure 1 . The blade 14 is slidably mounted, in a translation movement perpendicular to the bearing surface of the frame member 15, around a tube 16 integral with the frame member 15 to abut against the serge or screws of the pendulum 13 or move away from it.

Lors du fonctionnement normal du mouvement, et dans la présente variante, l'extrémité libre de la lame 14 est parallèle à la surface d'appui inclinée de l'élément de bâti 15.During normal operation of the movement, and in the present variant, the free end of the blade 14 is parallel to the inclined bearing surface of the frame member 15.

Le mécanisme d'actionnement de la lame 14 comprend, comme organes d'actionnement, une bague d'actionnement 18 montée coulissante selon un mouvement de translation perpendiculaire à la surface d'appui de l'élément de bâti 15, autour du tube 16 pour coopérer directement avec la lame 14, et des couteaux 20, similaires à ceux de la figure 1. Ces éléments sont disposés sous le balancier.The actuating mechanism of the blade 14 comprises, as actuating members, an actuating ring 18 slidably mounted in a translation movement perpendicular to the bearing surface of the frame member 15, around the tube 16 for cooperate directly with the blade 14, and knives 20, similar to those of the figure 1 . These elements are arranged under the pendulum.

Ainsi, la bague d'actionnement 18 ou les couteaux 20, conformément à l'invention, sont mobiles dans un plan non parallèle et non perpendiculaire à l'axe de pivotement AA du balancier 13.Thus, the actuating ring 18 or the knives 20, according to the invention, are movable in a non-parallel plane and not perpendicular to the pivot axis AA of the balance 13.

De plus, également conformément à l'invention, la lame 14 est agencée par rapport au balancier 13 de sorte que la direction de la force F résultant de l'action de la lame 14 contre le balancier 13 est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier 13, comme le montre la figure 2b.In addition, also according to the invention, the blade 14 is arranged relative to the balance 13 so that the direction of the force F resulting from the action of the blade 14 against the rocker 13 is inclined at an angle α different from 0 ° and 90 ° relative to the pivot axis AA of the beam 13, as shown in FIG. figure 2b .

La lame 14 peut être remplacée par une bague d'arrêt circulaire montée coulissante sur un tube et présentant un rebord incliné ayant la même fonction que l'extrémité libre de la lame 14. Le diamètre de la bague circulaire est tel que le rebord incliné de la bague d'arrêt est susceptible d'entrer en contact avec la serge du balancier lorsqu'elle est déplacée.The blade 14 may be replaced by a circular stop ring slidably mounted on a tube and having an inclined flange having the same function as the free end of the blade 14. The diameter of the circular ring is such that the inclined flange of the stop ring is likely to come into contact with the balance rod when it is moved.

Le fonctionnement du dispositif d'arrêt est similaire à celui de la variante de la figure 1.The operation of the stop device is similar to that of the variant of the figure 1 .

Ainsi, le dispositif d'arrêt selon l'invention permet d'occuper un espace limité dissimulé sous le balancier, afin de ne pas nuire à l'aspect esthétique du mouvement.Thus, the stop device according to the invention allows to occupy a limited space hidden under the balance, so as not to harm the aesthetic appearance of the movement.

En référence aux figures 3a et 3b, il est représenté de manière schématique une partie d'un mouvement de pièce d'horlogerie comprenant un bâti comportant un élément de bâti 31 formant un plan de référence P et deux supports de balancier 32 correspondant, dans cette variante, à des ponts inférieurs 32a et à des ponts supérieurs 32b. Le mouvement comprend également deux balanciers 33 destinés à osciller autour de leur axe de pivotement AA respectif. Les balanciers 33 sont montés sur leur support respectif 32 de manière inclinée, de sorte que leur axe de pivotement AA forme un angle β non nul avec une perpendiculaire au plan de référence P ou avec un plan parallèle à P et confondu ou tangent avec le fond P' de la pièce d'horlogerie renfermant le mouvement. De plus, les balanciers 33 sont inclinés l'un par rapport à l'autre, leurs axes de pivotement n'étant pas parallèles.With reference to figures 3a and 3b it is schematically represented a part of a timepiece movement comprising a frame comprising a frame member 31 forming a reference plane P and two balance supports 32 corresponding, in this variant, to lower bridges 32a and at upper decks 32b. The movement also comprises two rockers 33 intended to oscillate about their respective pivot axis AA. The rockers 33 are mounted on their respective support 32 in an inclined manner, so that their pivot axis AA forms a non-zero angle β with a perpendicular to the reference plane P or with a plane parallel to P and coincident or tangent with the bottom P 'of the timepiece enclosing the movement. In addition, the rockers 33 are inclined relative to each other, their pivot axes are not parallel.

Le mouvement comporte également un dispositif d'arrêt des balanciers 33, le dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier 33 et les bloquer et un mécanisme d'actionnement dudit élément d'arrêt. Dans cette variante, l'élément d'arrêt est constitué d'une pièce 34, présentant sensiblement une forme de U, et terminée à chacune de ses extrémités par une lame flexible 34a. La pièce 34 est disposée sous les balanciers 33.The movement also comprises a stopping device of the rockers 33, the stopping device comprising at least one movable stopping element for coming into contact with the rocker 33 and blocking them and a mechanism for actuating said stopping element. In this variant, the stop element consists of a piece 34, substantially U-shaped, and terminated at each end by a flexible blade 34a. The piece 34 is arranged under the rockers 33.

Le mécanisme d'actionnement de l'élément d'arrêt ou de la pièce 34 comprend, comme organe d'actionnement, une bascule 38 sur laquelle est montée la pièce 34. La bascule 38 est disposée sous les balanciers 33 et est montée mobile en rotation sur l'élément de bâti 31 autour d'un pivot 39. La rotation de la bascule 38 est commandée par le déplacement de la tige de mise à l'heure pour rapprocher ou éloigner la pièce 34 des balanciers 33. Ainsi, la bascule 38, conformément à l'invention, est mobile en rotation dans un plan non perpendiculaire ou non parallèle à l'axe de pivotement AA des balanciers 33.The actuating mechanism of the stop element or of the part 34 comprises, as actuating member, a rocker 38 on which is mounted the piece 34. The rocker 38 is disposed under the rockers 33 and is mounted movably in rotation on the frame member 31 around a pivot 39. The rotation of the rocker 38 is controlled by the movement of the time setting rod to move the piece 34 closer to or away from the rockers 33. Thus, the rocker 38, according to the invention, is movable in rotation in a non-perpendicular plane or non-parallel to the pivot axis AA of the rockers 33.

La bascule 38 et la pièce 34 sont positionnées sous les balanciers 33 de sorte que, lors du fonctionnement normal du mouvement, la pièce 34 ne gêne pas l'oscillation des balanciers 33, comme le montre la figure 3a, et de sorte que, lors de l'arrêt des balanciers, la bascule 38 ayant pivoté, les lames 34a de la pièce 34 butent contre le point le plus bas de la serge ou des vis des balanciers 33 pour les bloquer, comme le montre la figure 3b. Après la mise à l'heure, la bascule 38 et la pièce 34 sont ramenées dans leur position initiale, conformément à la figure 3a, de sorte que les balanciers 33 sont libérés.The rocker 38 and the piece 34 are positioned under the rockers 33 so that, during the normal operation of the movement, the piece 34 does not interfere with the oscillation of the rockers 33, as shown in FIG. figure 3a , and so that, when stopping the rockers, the rocker 38 having pivoted, the blades 34a of the piece 34 abut against the lowest point of the serge or screws of the rockers 33 to block them, as shown the figure 3b . After setting the time, the rocker 38 and the piece 34 are returned to their initial position, in accordance with the figure 3a , so that the rockers 33 are released.

De plus, également conformément à l'invention, les lames 34a sont agencées par rapport à leur balancier respectif 33 de sorte que la direction de la force F résultant de l'action de la lame 34a contre son balancier respectif 33 est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA dudit balancier 33, comme le montre la figure 3b. Notamment, lors du fonctionnement normal du mouvement, et selon la présente variante, les lames 34a sont parallèles au plan de référence P.In addition, also according to the invention, the blades 34a are arranged relative to their respective balance 33 so that the direction of the force F resulting from the action of the blade 34a against its respective balance 33 is inclined at an angle α different from 0 ° and 90 ° relative to the pivot axis AA of said beam 33, as shown in FIG. figure 3b . In particular, during normal operation of the movement, and according to the present variant, the blades 34a are parallel to the reference plane P.

Il est bien évident que chacun des balanciers peut être disposé de sorte que leur axe de rotation est incliné dans n'importe quelle direction par rapport au plan de référence P. De même, les balanciers peuvent être disposés de sorte que leurs axes de rotation sont parallèles l'un par rapport à l'autre.It is obvious that each of the rockers can be arranged so that their axis of rotation is inclined in any direction relative to the reference plane P. Similarly, the rockers can be arranged so that their axes of rotation are parallel to each other.

Dans une autre variante non représentée, la pièce 34 peut être remplacée par une bague d'arrêt circulaire montée coulissante selon un mouvement de translation perpendiculaire au plan de référence P. Le diamètre de la bague circulaire est tel que la bague d'arrêt est susceptible d'entrer en contact avec le point le plus bas de chaque balancier 33 lorsqu'elle est déplacée.In another variant not shown, the piece 34 may be replaced by a sliding stop ring mounted in a translational movement perpendicular to the reference plane P. The diameter of the circular ring is such that the stop ring is capable of to come into contact with the lowest point of each beam 33 when it is moved.

En référence à la figure 4, il est représenté une partie d'un mouvement de pièce d'horlogerie comprenant un bâti comportant un élément de bâti 41 formant un plan de référence P parallèle à un plan tangent ou ici confondu avec le fond P' de la pièce d'horlogerie renfermant le mouvement.With reference to the figure 4 , there is shown a part of a timepiece movement comprising a frame comprising a frame member 41 forming a reference plane P parallel to a tangent plane or here confused with the bottom P 'of the timepiece enclosing movement.

Le mouvement comprend un tourbillon simple comprenant de manière traditionnelle une cage 42 constituant une structure montée libre en rotation représentant un support pour un balancier 43. Le balancier 43 est destiné à osciller autour d'un axe de pivotement AA et est monté dans la cage 42 de manière inclinée, de sorte que l'axe de pivotement AA forme un angle β non nul avec une perpendiculaire au plan de référence P, coaxiale à l'arbre 45 de la cage 42. La cage 42 est elle-même montée mobile en rotation sur l'élément de bâti 41, autour de son axe défini par l'arbre 45.The movement comprises a simple vortex conventionally comprising a cage 42 constituting a rotatably mounted structure representing a support for a rocker 43. The rocker 43 is intended to oscillate about a pivot axis AA and is mounted in the cage 42 inclined so that the pivot axis AA forms a non-zero angle β with a perpendicular to the reference plane P, coaxial with the shaft 45 of the cage 42. The cage 42 is itself rotatably mounted on the frame member 41, about its axis defined by the shaft 45.

Plus particulièrement, l'axe de pivotement AA du balancier 43 n'est pas perpendiculaire à un plan adjacent au poignet d'un utilisateur portant la pièce d'horlogerie renfermant le mouvement de l'invention.More particularly, the pivot axis AA of the balance 43 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece containing the movement of the invention.

De manière conventionnelle, un dispositif antichoc 46 est disposé à chaque extrémité de l'axe AA du balancier 43.Conventionally, an anti-shock device 46 is disposed at each end of the axis AA of the rocker arm 43.

La construction et le fonctionnement d'un tel tourbillon sont connus de l'homme du métier et n'appellent pas de détails supplémentaires.The construction and operation of such a vortex is known to those skilled in the art and does not call for additional details.

Selon une certaine terminologie généralement utilisée dans le domaine de l'horlogerie, le tourbillon comprend une cage mobile qui porte tous les organes de l'échappement et, en son centre, l'organe régulateur. Le pignon de la roue d'échappement tourne autour de la roue des secondes qui est fixe. On distingue les carrousels, dispositifs analogues au tourbillon, mais dans lesquels la cage est commandée, non pas par la roue des secondes, mais par la roue moyenne (qui n'est pas fixe). Dans la présente demande, le terme tourbillon englobe ces deux possibilités et plus généralement tout organe réglant embarqué sur un système tournant. Ainsi, bien que la présente description soit faite en référence à un dispositif dans lequel le pignon d'échappement tourne autour de la roue des secondes fixe, les variantes de l'invention peuvent être directement transposées à un carrousel ou à tout autre organe réglant embarqué sur un système tournant.According to a certain terminology generally used in the field of horology, the vortex comprises a movable cage which carries all the organs of the exhaust and, in its center, the regulating member. The pinion of the escape wheel rotates around the seconds wheel which is fixed. There are carousels, devices similar to the vortex, but in which the cage is controlled, not by the wheel of the seconds, but by the average wheel (which is not fixed). In the present application, the term vortex encompasses these two possibilities and more generally any regulating device embarked on a rotating system. Thus, although the present description is made with reference to a device in which the escape pinion rotates around the fixed seconds wheel, the variants of the invention can be directly transposed to a carousel or other onboard regulating member on a rotating system.

En outre, le mouvement comporte un dispositif d'arrêt dudit balancier 43, le dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier 43 et le bloquer et un mécanisme d'actionnement dudit élément d'arrêt. Dans cette variante, l'élément d'arrêt est une lame flexible 44, coudée, disposée sous le balancier 43. La lame 44 comprend une première extrémité libre 44a et une seconde extrémité 44b montée coulissante, selon un mouvement de translation perpendiculaire au plan de référence P, autour de l'arbre 45 de la cage 42 pour buter contre la serge ou les vis du balancier 43 ou s'en éloigner. Lors du fonctionnement normal du mouvement, et selon la présente variante, l'extrémité libre 44a de la lame est parallèle au balancier 43, c'est-à-dire au plan formé par la serge du balancier.In addition, the movement comprises a device for stopping said rocker 43, the stop device comprising at least one movable stop element for coming into contact with the rocker arm 43 and blocking it and an actuating mechanism for said rocker element. stop. In this variant, the stop element is a flexible blade 44, bent, disposed under the rocker 43. The blade 44 comprises a first free end 44a and a second end 44b slidably mounted, in a translation movement perpendicular to the plane of reference P, around the shaft 45 of the cage 42 to abut against the serge or the screws of the balance 43 or move away. During normal operation of the movement, and according to the present variant, the free end 44a of the blade is parallel to the balance 43, that is to say to the plane formed by the beam seam.

Le mécanisme d'actionnement de l'élément d'arrêt ou de la lame 44 comprend, comme organe d'actionnement, une bague d'actionnement 48, disposée sous le balancier 43 et solidaire en rotation avec l'arbre 45 de la cage 42 de sorte que ladite bague 48 est embarquée sur la cage 42. La bague d'actionnement 48 est montée coulissante autour de l'arbre 45 de la cage 42, selon un mouvement de translation perpendiculaire au plan de référence P, et coopère directement avec la lame 44 qui repose sur elle. Ainsi, la bague d'actionnement 48, conformément à l'invention, est mobile en translation dans un plan non perpendiculaire et non parallèle à l'axe de pivotement AA du balancier 43. Le déplacement de la bague d'actionnement 48 est commandé par le déplacement de la tige de mise à l'heure.The mechanism for actuating the stop element or the blade 44 comprises, as actuating member, an actuating ring 48, disposed under the rocker arm 43 and integral in rotation with the shaft 45 of the cage 42 so that said ring 48 is embedded on the cage 42. The actuating ring 48 is slidably mounted around the shaft 45 of the cage 42, in a translation movement perpendicular to the reference plane P, and cooperates directly with the blade 44 which rests on it. Thus, the actuating ring 48, according to the invention, is movable in translation in a non-perpendicular plane and not parallel to the pivot axis AA of the rocker arm 43. The displacement of the actuating ring 48 is controlled by the movement of the time setting rod.

De plus, également conformément à l'invention, la lame 44 et plus spécifiquement son extrémité libre 44a est agencée par rapport au balancier 43 de sorte que la direction de la force F résultant de l'action de la lame 44 contre le balancier 43 est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier 43, comme le montre la figure 4. C'est-à-dire que la direction de la force F résultant de l'action de l'élément d'arrêt contre le balancier 43 n'est ni parallèle ni perpendiculaire à l'axe de pivotement AA du balancier 43.In addition, also in accordance with the invention, the blade 44 and more specifically its free end 44a is arranged relative to the rocker arm 43 so that the direction of the force F resulting from the action of the blade 44 against the rocker 43 is inclined at an angle α different from 0 ° and 90 ° relative to the pivot axis AA of the beam 43, as shown in FIG. figure 4 . That is to say, the direction of the force F resulting from the action of the stop element against the balance 43 is neither parallel nor perpendicular to the pivot axis AA of the balance 43.

De préférence, l'angle α est compris entre 10° et 80°, et plus préférentiellement entre 20° et 70°.Preferably, the angle α is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.

Dans cette variante, l'angle α est égal à l'angle β.In this variant, the angle α is equal to the angle β.

Il est prévu, sous la cage 42, un ressort de rappel 49 solidaire par une de ses extrémités à l'arbre 45 de la cage 42 et, par l'autre extrémité, à la bague d'actionnement 48.Under the cage 42, there is provided a return spring 49 secured at one of its ends to the shaft 45 of the cage 42 and, at the other end, to the actuating ring 48.

Les dimensions de la lame 44 et de la bague d'actionnement 48 sont telles que ces éléments sont inclus dans un cylindre dans lequel est inscrit le balancier 43. Ainsi, l'encombrement du dispositif d'arrêt est réduit, ce qui libère de la place pour d'autres organes. Par ailleurs, le dispositif d'arrêt est dissimulé sous le balancier, ce qui améliore l'aspect esthétique du mouvement.The dimensions of the blade 44 and of the actuating ring 48 are such that these elements are included in a cylinder in which the balance 43 is inscribed. Thus, the size of the stop device is reduced, which frees the place for other organs. Moreover, the stop device is hidden under the balance, which improves the aesthetic appearance of the movement.

De plus, les éléments du dispositif d'arrêt sont concentrés au centre de la cage et non en périphérie, ce qui n'influencera pas ou très peu l'inertie de l'ensemble.In addition, the elements of the stop device are concentrated at the center of the cage and not at the periphery, which will have little or no influence on the inertia of the assembly.

Le fonctionnement du dispositif d'arrêt est le suivant. En temps normal, tel que représenté sur la figure 4, la lame 44 est écartée du balancier 43. Pour arrêter le balancier 43 lors de la mise à l'heure, la bague d'actionnement 48 est actionnée au moyen de la tige de mise à l'heure de manière à la soulever. De ce fait, la lame 44 se soulève également jusqu'à ce que son extrémité 44a entre en contact avec le balancier 43 et le bloque, en appliquant contre le balancier une force F conformément à l'invention. Lorsque la mise à l'heure est effectuée, la bague d'actionnement 48 et la lame 44 reviennent dans leur position de fonctionnement normal sous l'action du ressort de rappel 49. Ainsi, la lame 44 s'éloigne du balancier 43 et le libère. Le dispositif d'arrêt reprend sa position telle que représentée sur la figure 4.The operation of the stop device is as follows. In normal times, as shown on the figure 4 , the blade 44 is spaced from the rocker 43. To stop the rocker 43 during the time setting, the actuating ring 48 is actuated by means of the time setting rod so as to lift. As a result, the blade 44 also lifts until its end 44a comes into contact with the balance 43 and blocks it, by applying a force F in accordance with the invention against the balance. When the time setting is performed, the actuating ring 48 and the blade 44 return to their normal operating position under the action of the return spring 49. Thus, the blade 44 moves away from the balance 43 and releases it. The stop device returns to its position as shown on the figure 4 .

La lame 44 étant embarquée sur la cage du tourbillon, tourne autour de l'arbre 45 avec le balancier 43. Ainsi, la lame 44 et le balancier 43 seront toujours dans la même position l'un par rapport à l'autre. De plus, la lame 44 est située en-dessous du balancier. De ce fait, l'arrêt du balancier 43 sera rapide et précis, quelle que soit la position du balancier par rapport au bâti.The blade 44 is embedded on the vortex cage, rotates around the shaft 45 with the balance 43. Thus, the blade 44 and the rocker 43 will always be in the same position relative to each other. In addition, the blade 44 is located below the balance. As a result, the stop 43 will be fast and accurate, regardless of the position of the balance relative to the frame.

De plus, le dispositif d'arrêt selon l'invention, en agissant sur le balancier selon un angle ni perpendiculaire ni parallèle à son axe de pivotement, permet de répartir les contraintes qui agissent sur le tigeron de l'axe de balancier et d'utiliser l'antichoc pour absorber une grande partie des contraintes.In addition, the stop device according to the invention, by acting on the balance at an angle neither perpendicular nor parallel to its pivot axis, allows to distribute the stresses acting on the beam of the pendulum axis and use shockproof to absorb a lot of the constraints.

Plus particulièrement, la figure 5a représente le dispositif antichoc 46 lors du fonctionnement normal du balancier. Le tigeron 47 de l'axe du balancier 43 est droit par rapport au dispositif antichoc 46. Lorsque le balancier 43 est arrêté au moyen du dispositif selon l'invention, l'appui de l'élément d'arrêt sur le balancier selon la force F inclinée par rapport à l'axe du balancier 43 fait que le balancier va s'incliner et se mettre en travers, comme le montre la figure 5b. La cheminée 46a du dispositif antichoc 46 va monter rapidement. En effet, la force inclinée appliquée sur le tigeron favorise le déplacement de la cheminée le long du plan incliné du chaton 46b du dispositif antichoc 46, permettant ainsi une meilleure répartition de la contrainte sur le tigeron. De ce fait, le dispositif antichoc 46 travaille de manière optimale au vu de la manière dont le balancier est attaqué par l'élément d'arrêt. Contrairement aux dispositifs connus dans lesquels la contrainte est uniquement radiale, la contrainte appliquée dans ce mouvement de l'invention, se décompose en une contrainte axiale et une contrainte radiale. Ceci permet de diminuer la contrainte radiale sur le pivot.In particular, the figure 5a represents the shock device 46 during normal operation of the pendulum. The tibernum 47 of the axis of the balance 43 is straight with respect to the shockproof device 46. When the rocker 43 is stopped by means of the device according to the invention, the support of the stop element on the balance according to the force F inclined relative to the axis of the balance 43 causes the pendulum to bow and get in the way, as shown in figure 5b . The chimney 46a of the shockproof device 46 will rise quickly. Indeed, the inclined force applied to the tigeron promotes the movement of the chimney along the inclined plane of the kitten 46b of the shockproof device 46, thus allowing a better distribution of the stress on the tigeron. Therefore, the shock device 46 works optimally in view of the way in which the rocker is attacked by the stop element. Unlike known devices in which the stress is only radial, the stress applied in this movement of the invention is decomposed into an axial stress and a radial stress. This makes it possible to reduce the radial stress on the pivot.

Dans une autre variante non représentée, la lame 44 est remplacée par une bague d'arrêt circulaire disposée sous le balancier et sous la cage, et montée sur un élément du bâti, mobile en translation selon un plan parallèle à l'axe de rotation de la cage de tourbillon. Le diamètre de la bague circulaire est tel que la bague d'arrêt est susceptible d'entrer en contact avec le point le plus bas du balancier dépassant de la cage lorsqu'elle est déplacée. La bague d'arrêt peut être actionnée par une bascule commandée par la tige de mise à l'heure. Conformément à l'invention, la bague d'arrêt circulaire est agencée par rapport au balancier de sorte que la direction de la force F résultant de l'action de la bague d'arrêt contre le balancier est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier.In another variant not shown, the blade 44 is replaced by a circular stop ring disposed under the beam and under the cage, and mounted on a frame member, movable in translation along a plane parallel to the axis of rotation of the tourbillon cage. The diameter of the circular ring is such that the stop ring is likely to come into contact with the lowest point of the pendulum projecting from the cage when it is moved. The stop ring can be actuated by a rocker controlled by the time setting rod. According to the invention, the circular stop ring is arranged relative to the rocker so that the direction of the force F resulting from the action of the stop ring against the rocker is inclined at an angle α different from 0 ° and 90 ° relative to the pivot axis AA of the balance.

Dans une autre variante non représentée, le balancier peut être agencé de sorte que son axe de rotation est coaxial ou confondu avec l'axe de rotation de la cage. Par ailleurs, l'axe de rotation de la cage peut être perpendiculaire ou non au plan de référence P, l'élément d'arrêt présentant toutefois une forme permettant de respecter les caractéristiques de l'invention.In another variant not shown, the balance can be arranged so that its axis of rotation is coaxial or coincident with the axis of rotation of the cage. Furthermore, the axis of rotation of the cage may or may not be perpendicular to the reference plane P, the stop element, however, having a shape to meet the characteristics of the invention.

En référence à la figure 6, il est représenté une autre variante de l'invention, correspondant à un double tourbillon. La construction et le fonctionnement d'un tel tourbillon sont par exemple décrits dans le brevet EP 1 419419 de la demanderesse.With reference to the figure 6 , there is shown another variant of the invention, corresponding to a double vortex. The construction and operation of such a vortex are for example described in the patent EP 1 419419 of the plaintiff.

Le mouvement selon l'invention comprend un bâti comportant un élément de bâti 61 formant un plan de référence P parallèle à un plan tangent ou ici confondu avec le fond de la pièce d'horlogerie renfermant le mouvement.The movement according to the invention comprises a frame comprising a frame member 61 forming a reference plane P parallel to a tangent plane or here confused with the bottom of the timepiece enclosing the movement.

Le mouvement comprend également un double tourbillon ou tourbillon biaxial, qui comporte, telles que décrites dans le brevet EP 1 419419 une première cage 62 constituant un support pour un balancier 63 et une seconde cage 65. Le balancier 63 est destiné à osciller autour d'un axe de pivotement AA et est monté dans la première cage 62 de sorte que, dans cette variante, son axe de pivotement soit coaxial avec l'axe de rotation de la première cage 62 montée pivotante dans la seconde cage 65. Cette dernière est elle-même montée pivotante sur l'élément de bâti 61 selon un axe BB perpendiculaire au plan de référence P. L'axe de pivotement AA forme un angle β non nul et différent de 90° avec l'axe BB.The movement also includes a double swirl or biaxial tourbillon, which comprises, as described in the patent EP 1 419419 a first cage 62 constituting a support for a rocker 63 and a second cage 65. The rocker 63 is intended to oscillate about a pivot axis AA and is mounted in the first cage 62 so that, in this variant, its axis of pivoting is coaxial with the axis of rotation of the first cage 62 pivotally mounted in the second cage 65. The latter is itself pivotally mounted on the frame member 61 along an axis BB perpendicular to the reference plane P. L pivot axis AA forms a non-zero angle β and different from 90 ° with the axis BB.

Plus particulièrement, l'axe de pivotement AA du balancier 63 n'est pas perpendiculaire à un plan adjacent au poignet d'un utilisateur portant la pièce d'horlogerie renfermant le mouvement de l'invention.More particularly, the pivot axis AA of the rocker 63 is not perpendicular to a plane adjacent to the wrist of a user wearing the timepiece enclosing the movement of the invention.

La deuxième cage 65 comprend notamment un support supérieur 65a et un support inférieur 65b destinés à recevoir la première cage 62.The second cage 65 comprises in particular an upper support 65a and a lower support 65b intended to receive the first cage 62.

En outre, le mouvement comporte un dispositif d'arrêt dudit balancier 63, le dispositif d'arrêt comprenant au moins un élément d'arrêt mobile pour entrer en contact avec le balancier 63 et le bloquer et un mécanisme d'actionnement dudit élément d'arrêt.In addition, the movement comprises a device for stopping said rocker 63, the stop device comprising at least one mobile stop element for coming into contact with the rocker 63 and blocking it and a mechanism for actuating said rocker element. stop.

Dans cette variante, l'élément d'arrêt est une lame flexible 64, coudée, disposée sous le balancier 63. La lame 64 comprend une première extrémité libre 64a et une seconde extrémité 64b agencée pour être solidaire de la première cage 62. Ainsi, ladite lame 64 est embarquée sur la première cage 62 et son extrémité libre 64a est susceptible de se déplacer, par déformation élastique de la lame, selon un mouvement de translation perpendiculaire au plan de référence P pour buter contre le balancier 63 ou s'en éloigner. Lors du fonctionnement normal du mouvement et dans cette variante, l'extrémité libre 64a de la lame est parallèle au balancier 63, c'est-à-dire au plan formé par la serge du balancier.In this variant, the stop element is a flexible blade 64, bent, disposed under the rocker 63. The blade 64 comprises a first free end 64a and a second end 64b arranged to be secured to the first cage 62. Thus, said blade 64 is embedded on the first cage 62 and its free end 64a is able to move, by elastic deformation of the blade, in a translation movement perpendicular to the reference plane P to abut against the rocker 63 or away from it . During normal operation of the movement and in this variant, the free end 64a of the blade is parallel to the rocker 63, that is to say to the plane formed by the beam serge.

Le mécanisme d'actionnement de l'élément d'arrêt ou de la lame 64 comprend différents organes d'actionnement, à savoir une goupille 66, deux bagues d'actionnement 67 et 68, et des tiges 69.The actuating mechanism of the stop member or the blade 64 comprises various actuating members, namely a pin 66, two actuating rings 67 and 68, and rods 69.

La goupille 66 est disposée entre la première bague d'actionnement 67 et la lame 64, de manière à coopérer directement avec celle-ci. La goupille 66 est disposée parallèlement à l'axe BB, et est agencée pour être solidaire en rotation avec la première cage 62, et être ainsi embarquée sur celle-ci, avec la lame 64. De plus, la goupille 66 est agencée pour être mobile en translation, par rapport à la lame 64, dans un plan non perpendiculaire et non parallèle à l'axe de pivotement AA du balancier 63. En position de fonctionnement normal, la goupille 66 est disposée juste en-dessous de la lame 64 de manière à pouvoir pousser la lame 64 lorsque ladite goupille 66 est déplacée.The pin 66 is disposed between the first actuating ring 67 and the blade 64, so as to cooperate directly therewith. The pin 66 is disposed parallel to the axis BB, and is arranged to be integral in rotation with the first cage 62, and thus be embedded thereon, with the blade 64. In addition, the pin 66 is arranged to be movable in translation, relative to the blade 64, in a non-perpendicular plane and not parallel to the pivot axis AA of the rocker 63. In the normal operating position, the pin 66 is disposed just below the blade 64 of so as to be able to push the blade 64 when said pin 66 is moved.

La première bague d'actionnement 67 est disposée sous la goupille 66, dans le support inférieur 65b de la seconde cage 65. Sur la première bague d'actionnement 67 sont montés solidaires des tiges 69. La première bague d'actionnement 67 et les tiges 69 sont positionnées de manière coaxiale à l'axe de pivotement AA du balancier et de la première cage 62. La première bague d'actionnement 67 et les tiges 69 sont agencées pour être solidaires en rotation avec la deuxième cage.The first actuating ring 67 is disposed under the pin 66, in the lower support 65b of the second cage 65. On the first actuating ring 67 are mounted integral with the rods 69. The first actuating ring 67 and the rods 69 are positioned coaxially with the pivot axis AA of the balance and the first cage 62. The first actuating ring 67 and the rods 69 are arranged to be integral in rotation with the second cage.

De plus, la première bague d'actionnement 67 et les tiges 69 sont agencées pour être montées coulissantes autour de l'arbre de la première cage 62, selon un mouvement de translation parallèle à l'axe AA.In addition, the first actuating ring 67 and the rods 69 are arranged to be slidably mounted around the shaft of the first cage 62, in a translation movement parallel to the axis AA.

En position de fonctionnement normal, la première bague d'actionnement 67 est disposée juste en-dessous de la goupille 66 de manière à pouvoir la déplacer lorsque ladite première bague d'actionnement 67 est elle-même déplacée.In the normal operating position, the first actuating ring 67 is disposed just below the pin 66 so as to be able to move it when said first actuating ring 67 is itself moved.

Le rebord de la première bague d'actionnement 67 au contact avec la goupille 66 est chanfreiné pour améliorer le contact avec la goupille 66 lorsque la première bague d'actionnement 67 est déplacée au moyen de la deuxième bague d'actionnement 68.The flange of the first actuating ring 67 in contact with the pin 66 is chamfered to improve contact with the pin 66 when the first actuating ring 67 is moved by means of the second actuating ring 68.

La deuxième bague d'actionnement 68 est disposée sur l'élément de bâti 61 sous le support inférieur 65b de la deuxième cage 65, coaxialement à son axe BB. La deuxième bague d'actionnement 68 comprend une creusure 70 dans laquelle peuvent circuler les extrémités des tiges 69 qui tournent avec la deuxième cage 65. La deuxième bague d'actionnement 68 et les tiges 69 sont disposées de sorte que, lors du fonctionnement normal du mouvement, les tiges 69 ne soient pas au contact de la creusure 70.The second actuating ring 68 is disposed on the frame member 61 under the lower support 65b of the second cage 65, coaxially with its axis BB. The second actuating ring 68 comprises a recess 70 into which the ends of the rods 69 which rotate with the second cage 65 can flow. The second actuating ring 68 and the rods 69 are arranged so that, during normal operation of the movement, the rods 69 are not in contact with the hollow 70.

La deuxième bague d'actionnement 68 est agencée pour être solidaire en rotation avec l'élément de bâti 61 et pour être montée coulissante autour de l'arbre de la deuxième cage 65, selon un mouvement de translation parallèle à l'axe BB.The second actuating ring 68 is arranged to be integral in rotation with the frame member 61 and to be slidably mounted around the shaft of the second cage 65, in a translation movement parallel to the axis BB.

Le déplacement de la deuxième bague d'actionnement 68 est commandé par le déplacement de la tige de mise à l'heure.The displacement of the second actuating ring 68 is controlled by the movement of the time setting rod.

Conformément à l'invention, la lame 64 et plus spécifiquement son extrémité libre 64a, est agencée par rapport au balancier 63 de sorte que la direction de la force F résultant de l'action de la lame 64 contre le balancier 63 est inclinée selon un angle α différent de 0° et de 90° par rapport à l'axe de pivotement AA du balancier 63, comme le montre la figure 6. C'est-à-dire que la direction de la force F résultant de l'action de l'élément d'arrêt contre le balancier 63 n'est ni parallèle ni perpendiculaire à l'axe de pivotement AA du balancier 63.According to the invention, the blade 64 and more specifically its free end 64a, is arranged relative to the rocker 63 so that the direction of the force F resulting from the action of the blade 64 against the rocker 63 is inclined according to a α angle different from 0 ° and 90 ° with respect to the pivot axis AA of the balance 63, as shown in FIG. figure 6 . That is to say, the direction of the force F resulting from the action of the stop element against the rocker 63 is neither parallel nor perpendicular to the pivot axis AA of the rocker 63.

De préférence, l'angle α est compris entre 10° et 80°, et plus préférentiellement entre 20° et 70°.Preferably, the angle α is between 10 ° and 80 °, and more preferably between 20 ° and 70 °.

Dans cette variante, l'angle α est égal à l'angle β.In this variant, the angle α is equal to the angle β.

Les dimensions des différents éléments du dispositif d'arrêt sont telles que ces éléments sont inclus dans un cylindre dans lequel est inscrit le tourbillon biaxial. Ainsi, l'encombrement du dispositif d'arrêt est réduit, ce qui libère de la place pour d'autres organes. Par ailleurs, le dispositif d'arrêt est dissimulé sous le balancier, ce qui améliore l'aspect esthétique du mouvement.The dimensions of the various elements of the stop device are such that these elements are included in a cylinder in which the biaxial vortex is inscribed. Thus, the size of the stop device is reduced, which frees up space for other organs. Moreover, the stop device is hidden under the balance, which improves the aesthetic appearance of the movement.

De plus, les éléments du dispositif d'arrêt sont concentrés au centre de la première cage et non en périphérie, ce qui n'influencera pas ou très peu l'inertie de l'ensembleIn addition, the elements of the stop device are concentrated at the center of the first cage and not at the periphery, which will have little or no influence on the inertia of the assembly.

Le fonctionnement du dispositif d'arrêt est le suivant. En temps normal, la lame 64 est écartée du balancier 63. Pour arrêter le balancier 63 lors de la mise à l'heure, la deuxième bague d'actionnement 68 est actionnée au moyen de la tige de mise à l'heure de manière à la soulever. De ce fait, la deuxième bague d'actionnement 68 entre en contact avec les tiges 69, et les déplacent de sorte que la première bague d'actionnement 67 se déplace également en direction de la goupille 66. Cette dernière est alors soulevée de manière à venir appuyer sur la lame flexible 64 et la déformer jusqu'à ce que son extrémité libre 64a entre en contact avec le balancier 63 et le bloque, en appliquant contre le balancier une force F conformément à l'invention. Lorsque la mise à l'heure est effectuée, les bagues d'actionnement 67 et 68, la goupille 66 et la lame 64 reviennent dans leur position de fonctionnement normal. Ainsi, la lame 64 s'éloigne du balancier 63 et le libère. Le dispositif d'arrêt reprend sa position telle que représentée sur la figure 6.The operation of the stop device is as follows. Normally, the blade 64 is separated from the rocker 63. To stop the rocker 63 during the time setting, the second actuating ring 68 is actuated by means of the time setting rod so as to lift it. As a result, the second actuating ring 68 comes into contact with the rods 69, and moves them so that the first actuating ring 67 also moves towards the pin 66. The latter is then raised in such a manner as to press the flexible blade 64 and deform it until its free end 64a comes into contact with the rocker 63 and blocks it, by applying a force F in accordance with the invention against the balance. When the time setting is performed, the actuating rings 67 and 68, the pin 66 and the blade 64 return to their normal operating position. Thus, the blade 64 moves away from the balance 63 and free him. The stop device returns to its position as shown on the figure 6 .

Les avantages de l'invention sont les mêmes que ceux exposés pour les autres variantes.The advantages of the invention are the same as those exposed for the other variants.

La figure 7 représente une variante du dispositif de la figure 6. Cette variante répond à la définition de l'invention selon laquelle le mécanisme d'actionnement comprend au moins un organe d'actionnement se déplaçant en translation dans un plan formant un angle α différent de 0° et de 90° par rapport à l'axe de pivotement du balancier.The figure 7 represents a variant of the device of the figure 6 . This variant corresponds to the definition of the invention according to which the actuating mechanism comprises at least one actuating member moving in translation in a plane forming an angle α different from 0 ° and 90 ° with respect to the axis. pivoting of the balance.

Dans cette variante, la goupille 76 est disposée parallèlement à l'axe de pivotement AA du balancier 73 et est donc parallèle à l'axe de la première bague d'actionnement 77 et aux tiges 79. La lame 74, la goupille 76, la première bague d'actionnement 77 et les tiges 79 sont actionnées par le déplacement de la deuxième bague d'actionnement 78, similaire à la bague 68 de la figure 6. Ladite deuxième bague d'actionnement 78 se déplaçant selon un mouvement de translation parallèle à l'axe BB constitue l'organe d'actionnement qui se déplace en translation dans un plan formant un angle α différent de 0° et de 90° par rapport à l'axe de pivotement du balancier 73.In this variant, the pin 76 is disposed parallel to the pivot axis AA of the balance 73 and is therefore parallel to the axis of the first actuating ring 77 and the rods 79. The blade 74, the pin 76, the first actuating ring 77 and the rods 79 are actuated by the displacement of the second actuating ring 78, similar to the ring 68 of the figure 6 . Said second actuating ring 78 moving in a translation movement parallel to the axis BB constitutes the actuating member which moves in translation in a plane forming an angle α different from 0 ° and 90 ° relative to the pivot axis of the balance 73.

Dans des variantes non représentées, l'axe de pivotement AA du balancier peut ne pas être coaxial avec l'axe de rotation de la première cage.In variants not shown, the pivot axis AA of the beam may not be coaxial with the axis of rotation of the first cage.

Il est bien évident que la présente invention n'est pas limitée aux variantes de réalisation décrites. Notamment la forme et le positionnement de l'élément d'arrêt ou du support de balancier peuvent varier en respectant toutefois les caractéristiques de l'invention. Plus particulièrement, les lames plates peuvent être remplacées par des lames présentant une extrémité libre inclinée, choisie toutefois de manière à respecter les caractéristiques de l'invention. Par ailleurs, l'invention est également applicable à un système comportant une troisième structure mobile en rotation, par exemple une troisième cage de tourbillon.It is obvious that the present invention is not limited to the embodiments described. In particular, the shape and the positioning of the stop element or the balance support may vary, while respecting the characteristics of the invention. More particularly, the flat blades may be replaced by blades having an inclined free end, chosen, however, so as to meet the characteristics of the invention. Furthermore, the invention is also applicable to a system comprising a third structure movable in rotation, for example a third tourbillon cage.

Claims (20)

  1. Timepiece movement comprising a framework, at least one balance support (2, 32, 42, 62), at least one balance (3, 13, 33, 43, 63) mounted on said support (2, 32, 42, 62) and intended to oscillate around a pivot axis (AA), and a stopping device for said balance (3, 13, 33, 43, 63), the stopping device comprising at least one stopping element (4, 14, 34, 44, 64) movable so as to enter into contact with the balance (3, 13, 33, 43, 63) and to block it and a mechanism for actuating said stopping element (4, 14, 34, 44, 64), the stopping element (4, 14, 34, 44, 64) being arranged in relation to the balance (3, 13, 33, 43, 63) in such a way that the direction of the force (F) resulting from the action of the stopping element (4, 14, 34, 44, 64) against the balance (3, 13, 33, 43, 63) is inclined at an angle (α) different to 0° and to 90° in relation to the pivot axis (AA) of the balance (3, 13, 33, 43, 63), characterized in that the actuating mechanism comprises at least one actuating member (8, 10, 18, 20, 38, 48, 66, 67, 68, 69) movable in a plane that is not perpendicular to the pivot axis (AA) of the balance (3, 13, 33, 43, 63).
  2. Timepiece movement comprising a framework, at least one balance support (2, 32, 42, 62), at least one balance (3, 13, 33, 43, 63, 73) mounted on said support (2, 32, 42, 62) and intended to oscillate around a pivot axis (AA), and a stopping device for said balance (3, 13, 33, 43, 63, 73), the stopping device comprising at least one stopping element (4, 14, 34, 44, 64, 74) movable so as to enter into contact with the balance (3, 13, 33, 43, 63, 73) and to block it and a mechanism for actuating said stopping element (4, 14, 34, 44, 64, 74), characterized in that the actuating mechanism comprises at least one actuating member (8, 10, 18, 20, 38, 48, 66, 68, 78) displaceable in rotation about an axis or in translation in a determined direction, said axis and said direction forming an angle (α) different to 0° and to 90° in relation to the pivot axis (AA) of the balance (3, 13, 33, 43, 63, 73).
  3. Movement according to any one of claims 1 and 2, characterized in that the actuating member (8, 18, 38, 48, 66) interacts directly with the stopping element (4, 14, 34, 44, 64).
  4. Movement according to any one of the preceding claims, characterized in that the support (2, 32) for the balance is an element of the framework of the movement.
  5. Movement according to Claims 3 and 4, characterized in that the stopping element (4, 14) and at least the actuating member of the actuating mechanism (8, 10, 18, 20) are included in a cylinder, inside which the balance (3, 43, 63, 73) is accommodated.
  6. Movement according to one of Claims 1 to 3, characterized in that the balance support (42, 62) is a first structure mounted freely in rotation.
  7. Movement according to Claim 6, characterized in that said first structure is a first tourbillon cage.
  8. Movement according to Claims 6 and 7, characterized in that the stopping element (44, 64, 74) and at least the actuating member (48, 68, 78) of the actuating mechanism are included in a cylinder, inside which the first structure is accommodated.
  9. Movement according to one of Claims 6 to 8, characterized in that the first structure is itself mounted in a second structure mounted freely in rotation.
  10. Movement according to Claim 9, characterized in that the second structure is a second tourbillon cage (65).
  11. Movement according to any one of the preceding claims, characterized in that the stopping element (4, 14, 34) is mounted on an element (1, 21, 31) of the framework of the movement.
  12. Movement according to any one of Claims 1 to 10, characterized in that the stopping element (44, 64, 74) is mounted on the support (42, 62) for the balance.
  13. Movement according to any one of the preceding claims, characterized in that the stopping element (4, 14, 44, 64, 74) is a flexible blade mounted movably in translation.
  14. Movement according to any one of Claims 1 to 12, characterized in that the stopping element is a circular stopping ring mounted movably in translation.
  15. Movement according to any one of the preceding claims, characterized in that the actuating mechanism comprises at least one actuating ring (8, 18, 48, 67, 68, 77, 78) that is movable in translation, controlled by a setting stem and so arranged as to cause a displacement of the stopping element (4, 14, 44, 64, 74).
  16. Movement according to Claims 6 and 15, characterized in that the actuating ring (67, 77) is installed on the first structure that is mounted freely in rotation.
  17. Movement according to any one of Claims 1 to 12, characterized in that the stopping element (34) is a flexible blade mounted movably in rotation.
  18. Movement according to any one of the preceding claims, characterized in that the actuating mechanism comprises a lever (38) controlled by a setting stem.
  19. Timepiece comprising a case back and a movement according to any one of Claims 1 to 18, characterized in that the movement is disposed in such a way that the pivot axis of the balance (3, 13, 33, 43, 63, 73) is not perpendicular to a plane tangent to or congruent with said case back.
  20. Timepiece comprising a case back and a movement according to any one of Claims 1 to 18, characterized in that the movement is disposed in such a way that the pivot axis of the balance (3, 13, 33, 43, 63, 73) is perpendicular to a plane tangent to or congruent with said case back.
EP12713163.9A 2011-04-14 2012-04-12 Timepiece movement Active EP2697693B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00665/11A CH704783B1 (en) 2011-04-14 2011-04-14 Movement timepiece.
PCT/EP2012/056631 WO2012140112A1 (en) 2011-04-14 2012-04-12 Timepiece movement

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EP2697693A1 EP2697693A1 (en) 2014-02-19
EP2697693B1 true EP2697693B1 (en) 2019-08-21

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WO (1) WO2012140112A1 (en)

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ES2593815T3 (en) * 2013-04-03 2016-12-13 Chopard Technologies Sa Watch movement with whirlwind and steering wheel stop mechanism
EP2793087B1 (en) 2013-04-18 2016-06-01 Glashütter Uhrenbetrieb GmbH Tourbillon
CH708038B1 (en) * 2013-05-07 2017-12-15 Hublot S A Genève Watch movement with three-dimensional resonance regulator.
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Also Published As

Publication number Publication date
CH704783B1 (en) 2016-09-15
EP2697693A1 (en) 2014-02-19
CH704783A1 (en) 2012-10-15
WO2012140112A1 (en) 2012-10-18

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