• 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 mechanical energy storage system, for watch movement (1), comprising first and second barrels (2, 4) and a winding mechanism, comprising a winding rotor (8) and a rotating rotor ( 34) integral with the rotor (8), for reloading a cylinder (2) in a first direction of rotation and the other cylinder (4) in the opposite direction of rotation. According to one embodiment, a return (44), engaged with the rotating mobile (34), is carried by a rocker (38) capable of establishing, respectively, a first link between the rotating member (34) and the first barrel (2) and a second link between the rotating wheel (34) and the other barrel (4). The position of the rocker (38) is a function of the direction of rotation of the rotating wheel (34) to establish one or the other kinematic links.
    公开号:CH711916A1
    申请号:CH01769/15
    申请日:2015-12-03
    公开日:2017-06-15
    发明作者:Vandel Philippe；Barraud Mathieu
    申请人:Richemont Int Sa；
    IPC主号:
    专利说明:

    TECHNICAL FIELD [0001] The present invention relates to an automatic mechanical energy storage system, for a watch movement, comprising first and second independent barrels and a winding mechanism for recharging the first and second barrels, the winding mechanism comprising an automatic winding device, comprising a winding rotor, and a rotating mobile having a mechanical connection with the winding rotor, so that the direction of rotation of the rotating wheel is a function of the direction of rotation of the winding rotor.
    State of the art [0002] Timepieces comprising mechanical energy storage systems of this type are already known. Different types of watch functions can justify the implementation of at least two independent barrels, a first feeds the basic mechanical energy movement, in particular to display the current time, and the second feeds a particular complication in mechanical energy without disrupt the march of the basic movement. Non-limiting examples of complications to which a specific barrel may be associated are a chronograph, a ring, or a simple display by large disks. One can also imagine the use of two independent barrels in a watch movement comprising two independent time bases, associated with two independent finishing workings, or even the juxtaposition of several watch movements in the same box each of which comprises at least one barrel.
    By way of example, patent CH 699 825 describes and illustrates a timepiece comprising a box comprising a support carrying a plurality of independent watch movements, each of which comprises a barrel as a source of mechanical energy. An automatic winding device comprising in particular a winding rotor is provided to simultaneously recharge all the barrels.
    [0004] If this system makes it possible to use a single winding rotor of greater dimension than small independent rotors, each of which would be carried directly by each of the watch movements, it imposes the implementation of a large winding rotor. inertia to overcome the sum of the winding torques of all the barrels, since they are all recharged at the same time. Such a rotor may have a large footprint having an impact on the appearance of the corresponding timepiece.
    DISCLOSURE OF THE INVENTION [0005] A main object of the present invention is to propose an automatic mechanical energy storage system of the type mentioned above, of construction alternative to that just described, having an almost universal impact. non-existent on the volume of a timepiece in which it would be implemented, while being simple, robust and reliable.
    For this purpose, the present invention relates more particularly to an automatic mechanical energy storage system meeting the characteristics mentioned above, characterized in that the winding mechanism is arranged to recharge a first cylinder in a first direction of rotation of the winding rotor and the other cylinder in the opposite direction of rotation.
    With these features, a single cylinder is recharged at a time and the winding rotor can be conventional in terms of its inertial characteristics. In addition, the reassembly of the two barrels is automatically performed randomly, and substantially to the same extent for both, since the distribution of movements of the timepiece on the wrist of its wearer is random. Thus, the wearer does not have to worry about the level of reassembly of one or other of the two barrels that are automatically reassembled to a sufficient extent to fulfill their respective functions.
    Preferably, the rotating mobile comprises a toothed board secured to the winding rotor being coaxial with the latter.
    According to a preferred embodiment, the system comprises a first kinematic link having a first clutch movable arranged to transmit the rotation of the rotatable mobile in a first direction of rotation to the first cylinder, and a second kinematic link having a second mobile clutch arranged to transmit the rotation of the rotating mobile in the opposite direction of rotation to the second cylinder.
    In this case, the winding mechanism may further advantageously comprise a return arranged in permanent engagement with the rotating mobile and carried by a rocker pivotable between first and second respective positions to establish, respectively, the first kinematic linkage between the rotating wheel and the first cylinder, and the second kinematic link between the rotary wheel and the other cylinder, the position of the rocker being a function of the direction of rotation of the rotating wheel.
    Advantageously, the return can be arranged to mesh with a gear reducer of the first kinematic link in the first position of the rocker, while the rocker can carry further a further reference arranged in permanent engagement with the rotating mobile and arranged to mesh with a gear reducer of the second kinematic link in the second position of the rocker.
    In this case, it can be provided that the rocker comprises a first arm carrying the reference and a second arm carrying the additional reference.
    These characteristics allow the watch manufacturer to have the various components of the system virtually anywhere in the watch movement, including gear reducers, and allow it to take into account the constraints inherent in other components of the movement with great flexibility.
    The present invention also relates to a watch movement provided with an automatic mechanical energy storage system that meets the characteristics that have just been presented, as well as a timepiece equipped with such a watch movement.
    BRIEF DESCRIPTION OF THE DRAWINGS [0015] Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, given with reference to the accompanying drawing, given by way of example non-limiting and, showing a simplified perspective view of a part of a watch movement comprising a mechanical energy storage system according to a preferred embodiment of the invention.
    Embodiment (s) of the invention [0016]
    Fig. 1 represents a simplified perspective view of a part of a watch movement 1 comprising a mechanical energy storage system according to a preferred embodiment of the invention.
    The watch movement 1 comprises a conventional frame, intended to support the movement components, which has not been shown for clarity.
    The watch movement 1 will not be described in detail to the extent that many of the elements that compose it are not illustrated and have no direct impact on the implementation of the present invention.
    In the present preferred embodiment, by way of nonlimiting illustration, the watch movement 1 comprises two barrels 2 and 4, each of which carries a ratchet 6 rotatably connected to the corresponding barrel shaft, in known manner. Alternatively, the implementation of the present invention may be carried out in relation to one or more barrels, the winding of which is carried out by the drum, and the person skilled in the art will not encounter any particular difficulty in adapting the present teaching according to of his own needs.
    The watch movement 1 may for example be implemented in a timepiece having a display of the current time, one of the barrels feeding a first conventional time base, and a particular complication possibly operating in relation with a second time base, to display measured times, a second time zone or information related to the date or phases of the Moon, by way of non-limiting illustration.
    The watch movement 1 comprises a winding mechanism comprising in particular an automatic winding device.
    The automatic winding device comprises a conventional winding rotor 8, or oscillating weight. Here, the rotor 8 is of the micro-rotor type by way of nonlimiting illustration. The present invention may equally well be implemented with a rotor whose radius is generally of the same order as that of the watch movement 1.
    The winding rotor 8 is capable of being kinematically connected to one or other of the barrels 2, 4 via first and second gear trains 10, 12 similar here.
    Each of the gear wheels 10, 12 comprises first, second, third and fourth references 14, 16, 18 and 20, and a clutch mobile 22, 24.
    The clutch mobiles 22 and 24 may be of any known type adapted and are here mounted in opposite directions.
    Indeed, the clutch mobile 22 comprises a plate 26 to be driven from the winding rotor 8. A ratchet spring 28 is arranged on the board 26 with three drive portions housed in holes adapted to 26. The pawl spring 28 is secured to a shaft 30 carrying a pinion (not visible) arranged in engagement with the ratchet 6 of the first cylinder 2. When the plate 26 is driven in the anti-clockwise direction on the fig. 1, the orientation of the ratchet spring arms 28 is such that the board 26 drives the ratchet spring 28 with it and thus also the ratchet 6 of the first barrel 2, which is thus recharged by rotating its shaft clockwise. Note that if the ratchet 6 is otherwise driven to rotate in the clockwise direction in FIG. 1, it drives the shaft 30 counter-clockwise, but the drive portions of the ratchet spring 28 deform and then extract holes in the board 26, so that the latter is not driven in. rotation.
    Because of the similarity of the two gearboxes 10 and 12, the two clutch mobiles 22 and 24 are driven in the same direction of rotation by the winding rotor 8. Or, the spring ratchet 32 of the mobile of clutch 24 is mounted in opposite direction with reference to the pawl spring 28 of the clutch mobile 22. Thus, the ratchet 6 of the second barrel 4 is driven when the clutch disks 22, 24 rotate in the clockwise direction and do not rotate. is not when the clutch mobiles 22, 24 turn in the counterclockwise direction.
    With these features, the barrels 2 and 4 are reloaded alternately.
    To transmit the movements of the winding rotor 8 to the barrels 2 and 4, a rotary wheel 34 is provided being arranged so as to be rotatable in one direction or the other depending on the movements of the winding rotor 8.
    The rotatable mobile 34 comprises a toothed plate 36 coaxial with the winding rotor 8, being integral with the latter.
    Furthermore, a latch 38 is arranged coaxial with the winding rotor 8, being free to rotate relative to the latter, the latter having two arms 40 and 42, spaced here by a hundred degrees for illustrative purposes. non-limiting.
    Each arm 40, 42 carries a return 44, 46 near its free end. The references 44, 46 are here rotatably mounted in cantilever on the latch 38, by means of ball bearings.
    Each arm 40, 42 has a length such that the corresponding reference is arranged in permanent engagement with the toothed plate 36 and can be positioned to mesh with one of the gear wheels 10, 12.
    Indeed, it appears from FIG. 1 that when the winding rotor 8 rotates in the direction of clockwise rotation, it drives the toothed board 36 in the same direction and the latter exerts a tangential force on the returns 44, 46 causing a rotation of the rocker 38 in the direction rotational speed, until the return 46 abuts against the first reference 14 of the second gear train 12 and drives in the direction of clockwise rotation. The clutch mobile 24 is also driven clockwise in this case, and thus the second barrel 4 is reloaded.
    Conversely, when the winding rotor 8 rotates in the counterclockwise direction of rotation, it drives the toothed board 36 in the same direction and it exerts a tangential force on the returns 44, 46 causing a rotation of the rocker 38 in the anti-clockwise direction of rotation, until the return 44 abuts the first gear 14 of the first gear train 10 and drives it in the counterclockwise direction of rotation. The clutch mobile 22 is also driven in the counterclockwise direction in this case, and thus the first barrel 2 is reloaded.
    Of course, even if such a solution is less advantageous because of the generated friction, and therefore the faster wear of the components involved and a lower yield, it is conceivable to provide that the latch 38 does not rotates. almost no or not at all, the references 44 and 46 then being in permanent engagement with the first reference 14 of the corresponding gear train 10, 12.
    Note that with regard to the manual winding device, it may for example comprise a controlled rocker for pivoting between two positions, depending on the direction of rotation of a winding stem, so that the movements rotation of the winding stem in a first direction of rotation are transmitted to a first cylinder and that the rotational movements of the winding stem in the other direction of rotation are transmitted to the other cylinder. A winding train of known structure is preferably arranged between the winding stem and each of the ratchets. When a given ratchet is driven (in the sense of a winding of the corresponding barrel), the corresponding clutch mobile 22 or 24 is automatically disengaged, by deformation of its ratchet spring 28 or 32 as explained above, in such a way that the winding rotor 8 is not rotated.
    In general, it will also be noted that the first references 14 of the first and second kinematic links are advantageously made in the form of unidirectional transmission mobiles acting as ratchets, to avoid unwinding the barrels in the gear trains. 10 and 12. In this case, each return 14 may for example be pivotally mounted on a fixed shaft by means of balls or rollers, so that it can rotate in a first direction of rotation and be locked in position. other direction of rotation, by compression of the balls or rollers against the fixed shaft, in known manner. Of course, it is possible to use an ordinary ratchet in each gear train, alternatively, which could for example be engaged with the first referral 14 which would be conventional in this case. In other words, if the pinion of one of the first referrals 14 was to undergo a force, from the corresponding barrel, which would tend to drive it in the opposite direction to its normal direction of rotation, that is to say when it is driven by the winding rotor 8 to recharge the same barrel, the rotation of the corresponding gear wheels would be locked by locking the first reference 14. Thus, the barrels can release mechanical energy only by their drum, in a conventional way.
    Thanks to the characteristics that have been exposed, a timepiece with two independent barrels can be achieved without involving a change in behavior for its user with reference to a standard timepiece with a single barrel. The construction and the operating mode of the automatic mechanical energy storage system according to the present invention are robust and allow the two barrels to be reloaded efficiently at a time without any constraint for the user or any impact on the volume of the workpiece. corresponding watchmaking.
    The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and, the invention is not limited to the implementation of certain particular features which have just been described, as for example the number of barrels - it is possible to consider groups of independent barrels - or the structure of the gear wheels, or clutch mobiles. Similarly, the form illustrated and described for the scale is not limiting. Furthermore, the rotating mobile driven by the winding rotor can be a mobile whose axis of rotation
    权利要求:
    Claims (8)
    [1]
    is offset from that of the rotor and be arranged in engagement with a pinion integral with the rotor, without departing from the scope of the invention. In addition, it is possible to implement the present invention in relation to at least two independent barrels with different technical specifications, in which case the gear wheels could be differentiated to take into account different winding constraints. The skilled person will not encounter any particular difficulty to adapt the content of the present disclosure to his own needs and implement a timepiece only partially meeting the characteristics described, comprising a system of storage of mechanical energy comprising two independent barrels reassembled by an automatic winding device, without departing from the scope of the invention. claims
    1. Automatic mechanical energy storage system, for watch movement (1), comprising first and second independent barrels (2, 4) and a winding mechanism for recharging said first and second barrels, said winding mechanism comprising a automatic winding device, comprising a winding rotor (8), and a rotating wheel (34) having a mechanical connection with said winding rotor (8), such that the direction of rotation of said rotary wheel (34) depending on the direction of rotation of said winding rotor (8), characterized in that said winding mechanism is arranged to recharge a first cylinder (2) in a first direction of rotation of said winding rotor (8) and the other cylinder (4) in the opposite direction of rotation.
    [2]
    2. System according to claim 1, characterized in that said rotatable mobile (34) comprises a toothed board (36) integral with said winding rotor (8) being coaxial with the latter.
    [3]
    3. System according to claim 1 or 2, characterized in that it comprises a first kinematic link comprising a first clutch movable (22) arranged to transmit the rotation of said rotatable mobile (34) in a first direction of rotation to said first barrel (2), and a second kinematic link having a second clutch movable (24) arranged to transmit the rotation of said rotatable mobile (34) in the opposite direction of rotation to said second barrel (4).
    [4]
    4. System according to claim 3, characterized in that the winding mechanism comprises a return (44) arranged in permanent engagement with said rotating wheel (34) and carried by a rocker (38) capable of pivoting between first and second positions respectively for establishing the first kinematic link between said rotatable wheel (34) and said first cylinder (2) and the second kinematic link between said rotatable wheel (34) and the other cylinder (4), and that the position of said rocker (38) is a function of the direction of rotation of said rotating wheel (34).
    [5]
    5. System according to claim 4, characterized in that said return (44) is arranged to mesh with a gear train (10) of said first kinematic link in said first position of said latch (38), and in that said rocker (38) carries a further reference (46) arranged in permanent engagement with said rotating wheel (34) and arranged to mesh with a gear wheel (12) of said second kinematic link in said second position of said rocker (38).
    [6]
    6. System according to claim 5, characterized in that said rocker (38) comprises a first arm (40) carrying said reference (44) and a second arm (42) carrying said additional reference (46).
    [7]
    Watch movement (1) comprising an automatic energy storage system according to one of the preceding claims.
    [8]
    8. Timepiece comprising a box housing a watch movement (1) according to claim 7.
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    同族专利:
    公开号 | 公开日
    CH711916B1|2020-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR395309A|1908-09-21|1909-02-20|Herbert Albert Sandor|Control mechanism using alternately charged springs as energy source|
    CH289759A|1951-05-02|1953-03-31|Rolex Montres|Self-winding wristwatch.|
    WO2009059441A1|2007-11-09|2009-05-14|Eterna Ag Uhrenfabrik|Mechanical watch having constant spring force|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01769/15A|CH711916B1|2015-12-03|2015-12-03|Automatic mechanical energy storage system for watch movement.|CH01769/15A| CH711916B1|2015-12-03|2015-12-03|Automatic mechanical energy storage system for watch movement.|
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