• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a clockwork movement (10) comprising a power source (11) arranged to supply components forming two distinct kinematic chains (12, 30). Each of these kinematic chains comprises a regulating system (24, 33), these control systems being substantially coplanar. The control systems comprise an escapement, these exhausts each comprising an escape wheel (25, 35) and an anchor (27, 36). These escape wheels (25, 35) rotate in opposite directions. The escape wheel of one of the control systems has teeth having a first orientation while the escape wheel of the other control system has teeth having a second orientation opposite to said first orientation. The escape wheels have a symmetrical shape with respect to each other. The shapes of the anchors are adapted accordingly and therefore also have a symmetrical shape with respect to each other. The invention also relates to a timepiece comprising such a movement.
    公开号:CH712265A2
    申请号:CH00364/16
    申请日:2016-03-16
    公开日:2017-09-29
    发明作者:Faivre Arnaud；Bugnon Alexandre；Carlhan Sébastien
    申请人:Impulsion Sa；
    IPC主号:
    专利说明:

    Description
    TECHNICAL AREA
    The present invention relates to a mechanical clockwork movement and more particularly to a watch movement comprising two control systems. These control systems are in particular vortices.
    In more detail, the present invention relates to a watch movement comprising a power source arranged to feed components forming two distinct kinematic chains, each of these kinematic chains comprising a regulating system, these control systems being substantially coplanar. , the control systems having an exhaust.
    The present invention also relates to a timepiece comprising such a movement. Such a timepiece can in particular be a watch such as a wristwatch.
    PRIOR ART
    [0004] Watchmaking movements comprising at least one regulating system of the tourbillon or carousel type have been known for a long time. These control systems have been developed in order to improve the isochronism of the movement of the watch by making this movement less sensitive to its position. More particularly, the regulating system has the effect of moving the balance over time, so as to make it take different positions. The average of the isochronism defects as a function of the position of the movement is in principle closer to zero than the isochronism defects in a particular position of the movement.
    [0005] Different movements have been developed on the basis of swirls, to further reduce isochronism defects. Such systems comprise for example several vortices, operating either in resonance or nematically connected to each other.
    Among the existing movements, patent CH 695 196 describes a watch movement with two swirls. These two vortices are driven in opposite directions of rotation from a single barrel and through a differential.
    The solution proposed in this patent uses a satellite having a gear engaged with one of the vortices, and a sun gear engaged with the other vortex.
    This solution is an extremely complex realization, given the size available to achieve the satellite and planetary wheels.
    STATEMENT OF THE INVENTION
    The present invention provides an alternative solution for making a watch movement having two swirls or more generally two control systems rotating in opposite directions. This alternative solution is simpler than the solutions of the prior art and allows better operation and easier adjustment. This results in a better isochronism of the movement.
    The object of the invention is achieved by a watch movement as defined in the preamble and characterized in that the escapements of the control systems rotate in opposite directions of rotation and in that the escape wheel of the one of the control systems comprising teeth having a symmetrical shape with respect to the teeth of the escape wheel of the other adjusting system, according to a plane of symmetry coplanar with said control systems.
    It may be advantageous to use two control systems rather than one, in particular because the possible isochronous defects of one of the control systems can be compensated by the other control system. As a result, the precision of the movement is further improved. Having two rotating systems rotating in opposite directions avoids synchronous rotation of these control systems. Thus, gravitation does not have the same effect on each of the control systems and the isochronism is improved. Moreover, the rotation in two opposite directions of the control systems produces an original aesthetic effect.
    SUMMARY DESCRIPTION OF THE DRAWINGS
    The present invention and its advantages will be better understood with reference to the appended figures and to the detailed description of a particular embodiment, in which: FIG. 1 is a front view of a part of a watch movement according to the present invention; fig. 2 is a rear view of the part of the watch movement shown in FIG. 1; fig. 3 is a perspective view, from above, of a first regulating system used in a watch movement according to the present invention; fig. 4 is a perspective view, from below, of the first regulating system illustrated in FIG. 3; fig. 5 is a perspective view, from above, of a second regulating system used in a watch movement according to the present invention; and
    fig. 6 is a perspective view, from below, of the second regulating system illustrated in FIG. 5 WAYS OF REALIZING THE INVENTION
    [0013] With reference to the figures, the invention relates to a watch movement 10 intended to be placed in a watch, in particular a watch of the wristwatch type. This movement has a source of energy. In the illustrated embodiment, the energy source is mechanical and comprises a cylinder 11. This barrel feeds two separate kinematic chains. Each of these kinematic chains comprises a regulating system. This regulating system can be a whirlpool or a carousel for example.
    A first kinematic chain 12 begins with the barrel 11 which engrains a mobile center 13. This mobile center 13, like the barrel 11, is part of the two kinematic chains. A center wheel 14 of the center wheel 13 engages a pinion (not shown) of a first torque stabilizer 15. This torque stabilizer, in the illustrated embodiment, is formed of a wheel 16 and a pinion . These two elements are capable of pivoting about the same axis 17, the wheel 16 being mounted idly on this axis. The pinion of the torque stabilizer is integral with an inner disk 18 and engraine with the center mobile 13. The inner disk 18 further comprises two pivots 19 whose function is explained below. The inner disk 18 is integral with a spiral spring 20 in charge of transmitting the torque of the pinion of the torque stabilizer to the wheel 16. This spiral spring 20 can be fixed by one of its ends to the inner disk 18, for example by means of one of the pivots 19. The spiral spring 20 is furthermore fixed to the wheel 16 in such a way that the wheel and the internal disk 18 are kinematically connected to one another by means of the spiral spring 20.
    The wheel 16 of the first torque stabilizer 15 comprises a transverse arm 21 disposed substantially along a diameter of this wheel. The pivots 19 of the torque stabilizer are arranged such that they exceed the transverse arm 21 in height. In this way, the pivots 19 act as a limiting member of the stroke of the inner disk 18 relative to the wheel 16. This stroke limiting function makes it possible to prevent the breaking of parts, in particular of the spiral spring. 20, in the case of too much race. The function of limiting the pivots 19 is also useful to prevent the spiral 20 from winding or unrolling completely, its turns are in contact with each other and so it has more elastic properties. The pivots 19 also facilitate the adjustment of the angular displacement of the inner disk 18. Indeed, after an ideal setting, the pivots should undergo angular displacement as large as possible, without however resisting against the transverse arm. The adjustment of the movement of the inner disk 18 relative to the wheel 16 can be done initially by selecting a spiral spring 20 adapted. In a second step, this adjustment can be done by means of a movable peg holder if such a peg carrier is provided, or by moving a ferrule in which is fixed the spiral spring 20.
    The wheel 16 of the first torque stabilizer 15 engages with a first intermediate mobile 22. This first intermediate mobile 22 engraine with a second intermediate mobile 23 which engrains in turn with a pinion (not shown) of a first regulating system 24.
    In the illustrated embodiment, the regulating system 24 of the first kinematic chain 12 is of the tourbillon type and comprises a Swiss lever escapement, this escapement being formed of an escape wheel 25 and a pinion gear. 26. This regulating system 24 further comprises an anchor 27, shown here as a Swiss-type anchor, and a sprung balance 28 cooperating with the anchor 27 so as to adjust its displacement. The escape wheel 25 has teeth which are oriented in a first orientation. The anchor 27 has entry and exit pallets whose shapes and dimensions are adapted to the shape, dimensions and orientation of the teeth of the escape wheel.
    The anchor and the exhaust are mounted on a pivoting cage 29 secured and coaxial with a mobile which can be a wheel of seconds. As in a conventional vortex, according to an advantageous embodiment, the exhaust performs a complete rotation in one minute. Other speeds of rotation could be provided.
    The second kinematic chain 30 is similar to the first kinematic chain 12 and comprises a torque stabilizer 31 engrained with the center mobile 13. This second torque stabilizer 31 is identical or similar to the first torque stabilizer 15.
    The second torque stabilizer 31 engrains with a third intermediate mobile 32 which is identical to the intermediate mobile 22, 23 of the first kinematic chain 15. This third intermediate mobile 32 engraine with a pinion of a second regulating system 33. As in the first kinematic chain, the second regulating system is in the form of a vortex. It could however also take the form of a carousel.
    The vortex forming part of the first kinematic chain 12 comprises, in a conventional manner, a balance spring 28, an escape wheel 25 and an anchor 27. The escape wheel 25 and the anchor 27 cooperate in such a way than
    权利要求:
    Claims (9)
    [1]
    the exhaust rotates in a clockwise direction when the movement is seen from above. This movement is that of a conventional whirlwind. The vortex forming part of the second kinematic chain 30 comprises substantially the same components as the first vortex, namely in particular a balance spring 34, an escape wheel 35 and an anchor 36. The escape wheel 35 and the anchor 36, however, has a different shape of the escapement wheel 25 and the anchor 27 of the first regulating system 24. In fact, the escape wheel 35 of the second regulating system 33 has teeth which are oriented according to a second orientation, opposite to said first orientation of the teeth of the escape wheel 25 of the first regulating system 24. These teeth of the escape wheel 35 of the second regulating system 33 are therefore symmetrical with respect to the teeth of the escape wheel 25 of the first regulating system 24, this symmetry being in a plane of symmetry coplanar with the escape wheel 35. In other words, one of the escape wheels 25, 35 is the mirror image of the other escape wheel. The anchor 36 also has a symmetrical shape with respect to the anchor 27 of the first regulating system. This symmetry is also done according to a plane coplanar with the escape wheel 35. The anchor 36 also comprises entry and exit pallets whose shapes and dimensions are adapted to the shape, dimensions and orientation teeth of the escape wheel. As is well known, the balance spring 34 of the second regulating system moves back and forth around a rest position. The rotation of the escape wheel 35 is controlled by the anchor 36 which allows a rotation corresponding to a tooth of the escape wheel during each half-cycle of the balance spring. Due to the shape and orientation of the teeth of the escape wheel 35 and the anchor 36, the rotation of the exhaust will be in a direction opposite to the direction of rotation of the first regulating system. Unlike the mechanism described in the prior art, in the present invention, it is not necessary to use a planetary gear to generate rotation in two opposite directions, two swirls. Because of the shape of the escapement and the anchor, the direction of rotation of the vortices is imposed. Indeed, during the back and forth movement of the spiral spring of each of the control systems, one of the directions of rotation of the escape wheel is prevented by the anchor while the other direction of rotation of this escape wheel is allowed. The permitted and prevented directions of rotation are defined by the shape and orientation of the teeth of the escape wheel and the anchor and not, as in the prior art, by a gear train. As a result, the watch movement is simpler to perform. It will also be less subject to manufacturing defects. In addition, the fact of not using a gear train to impose a direction of rotation decreases the number of watch components used, which has the effect of minimizing the energy losses due to friction. This increases the power reserve of the movement. Conventionally, the vortices are intended to count the oscillations and to "drive" the movement of a mobile watch. In this case, the two vortices rotate in opposite directions of rotation and drive the same mobile. As a result, one of the kinematic chains comprises one more mobile than the other kinematic chain or, more generally, an odd number of additional mobiles relative to the other kinematic chain. In this way, although the two control systems rotate in opposite directions, they can both be used to act on the same mobile of the watch. The present invention is not limited to the embodiment described, but extends to any variant that is obvious to those skilled in the art. In particular, the shapes, the dimensions, the number of wheels used can be adapted according to the constraints imposed for the realization of the watch. The control systems can be of the tourbillon type, as illustrated by the figures, or carousel. It is not necessary for the two control systems to be of the same type. In addition, the two control systems may have identical or different rotation frequencies. claims
    1. A watch movement (10) comprising a power source arranged to feed components forming two distinct kinematic chains, each of these kinematic chains (12, 30) comprising a regulating system (24, 33), these control systems being substantially coplanar, the control systems (24, 33) having an exhaust, characterized in that the escapements of the control systems rotate in opposite directions of rotation and in that the escape wheel (25, 35) of one of the control systems (24, 33) having teeth having a shape symmetrical with the teeth of the escape wheel (25, 35) of the other control system, in a plane of symmetry coplanar with said control systems.
    [2]
    Clockwork according to Claim 1, characterized in that the teeth of the escape wheel (25) of the first regulating system (24) have an orientation opposite to the orientation of the teeth of the escape wheel ( 35) of the second regulating system (33).
    [3]
    3. Timepiece movement according to claim 1, characterized in that the control systems (24, 33) are vortices.
    [4]
    4. Watch movement according to claim 1, characterized in that the escapements are escapements with Swiss anchor.
    [5]
    5. A watch movement according to claim 1 or 4, characterized in that the anchor (27) of the exhaust of the first regulating system (24) is symmetrical with respect to the anchor (36) of the second regulating system ( 33), according to a plane of symmetry coplanar with said control systems.
    [6]
    Timepiece according to Claim 1, characterized in that each drive train (12, 30) has a torque stabilizer (15, 31) arranged between the energy source and said control system (24, 33).
    [7]
    7. A watch movement according to claim 1, characterized in that one of the kinematic chains (12, 30) comprises an odd number of additional mobiles relative to the other kinematic chain.
    [8]
    8. Horological movement according to claim 1, characterized in that one of the kinematic chains (12, 30) has one more mobile than the other kinematic chain.
    [9]
    9. Timepiece characterized in that it comprises a watch movement according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    CH712265B1|2020-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-01-15| NV| New agent|Representative=s name: OMNIS-IP SA, CH |
    2019-02-28| PUE| Assignment|Owner name: STAR HLD SA, CH Free format text: FORMER OWNER: IMPULSION SA, CH |
    优先权:
    申请号 | 申请日 | 专利标题
    CH00364/16A|CH712265B1|2016-03-16|2016-03-16|Timepiece movement and timepiece comprising such a movement.|CH00364/16A| CH712265B1|2016-03-16|2016-03-16|Timepiece movement and timepiece comprising such a movement.|
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