• 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 invention relates to a timepiece comprising a sliding pinion correction mechanism (80) of the indications provided by a first display member and by a second display member, this correction mechanism comprising a mobile player (3). comprising two returns (40, 30), the first return (40) being driven by the sliding pinion (80) so that the sliding mobile (3) is moved to a first position where the second return (30) causes the first mobile display (1) rotating in a first direction of rotation, and in a second position where the second reference (30) drives the second mobile display (2) rotating in a second direction of rotation (F2) . The second reference (30) comprises an asymmetric tooth, which allows an effective correction of the indications carried by the two display members whose drive is provided by mobiles having different teeth.
    公开号:CH714795A1
    申请号:CH00338/18
    申请日:2018-03-16
    公开日:2019-09-30
    发明作者:Fréléchox Caroline；Donzé Laurence；Lengacher David；Ruedin Philippe；Borlon Bruno；Chatelain Yannick
    申请人:Lvmh Swiss Mft Sa；
    IPC主号:
    专利说明:

    1000
    CH 714 795 A1
    Description Technical Field [0001] The present invention relates to a timepiece, in particular a timepiece comprising a mechanism for correcting the indications supplied by a first display member and by a second display member.
    State of the art Parts comprising a first display member making it possible to provide a first indication and a second display member making it possible to provide a second indication different from the first are well known.
    In this context, the expression "display member" designates a needle, a ring, a disc, etc. which cooperates with a dial to provide an indication. This indication is not necessarily time information. Non-limiting examples of this indication are: a date (annual, perpetual, day / date, etc.); moon phases, tide phases, regattas, AM / PM display; a second time zone, for example a GMT time; etc.
    The displacement of a display member is generally ensured by a display mobile comprising a toothing. This mobile can be directly connected to the display member, by driving it through direct contact, or one or more intermediate mobiles between the display mobile and the display member ensure the training of the display unit by the display mobile.
    In the case where the display member is a hand, for example an hour hand, its movement is ensured by a toothed hour wheel kinematically linked to this hand. This hour wheel can be driven, directly or indirectly, by a display mobile. In the case where the display member is a disc or a ring, for example a date ring, this ring or disc may include a toothing which ensures its movement. In other words, if a display member has teeth, for example in the case of a disc or a ring, the notion of display member may coincide with that of display mobile.
    Correction mechanisms which allow both the correction of an indication provided by a first display member and an indication provided by a second display member are known per se.
    These correction mechanisms generally include a winding stem mounted in a plate of a watch comprising the timepiece, this winding stem comprising a main axis. The winding stem is generally movable in translation in the direction of this main axis and can occupy different axial positions. It is also movable in rotation around this axis: it can rotate clockwise and also counterclockwise.
    For example, the winding stem is movable between at least a first correction position and a winding position. In some cases, it can occupy a second correction position.
    In general, this winding stem carries a sliding pinion (or sliding pinion), which is movable on the winding rod.
    In the correction position, the sliding pinion moves in a known manner on the winding stem, allowing a kinematic connection with a sliding portable mobile mounted free in rotation. This portable mobile is configured to cooperate directly or by means of a gear train with the teeth of the mobile which allow the drive of the first display member or of the second display member, so as to correct the information carried by these display organs.
    A known example of this mobile player includes a first reference, a second reference and a third reference, each reference belonging to a stage differ from the portable player.
    These three stages are generally at least partially superimposed. They can be coaxial.
    In this context, the term "reference" means a gear, that is to say comprising at least one tooth. Known references are wheels having a toothing along their entire edge, this toothing being continuous. In other words, the pitch between two teeth, that is to say the distance between two consecutive teeth, is the same for all the reference. As a general rule, the teeth of known references also have the same shape. They are generally symmetrical, that is to say they comprise an axis of symmetry belonging to a plane substantially perpendicular to the plane of the wheel (or in general of the mobile) to which the tooth belongs and passing through the tooth and through the center of rotation of this wheel (or mobile).
    Conversely, a tooth devoid of any axis of symmetry belonging to a plane substantially perpendicular to the plane of the wheel (or in general of the wheel) to which the tooth belongs and passing through the tooth and through the center of rotation of this wheel (or mobile) in this context is an asymmetric tooth.
    In this context, a tooth having a substantially triangular section is defined by a first flank and a second flank, which constitute two of the three sides of the triangle, the third side being formed by the base of the tooth. This also applies to any tooth with a point (rounded or not), even if the flanks have a certain curvature. In the case of a tooth having a substantially rectangular or square section, in other words in the case of a tooth having a substantially flat head, the first flank and the second flank are the sides of the rectangle respectively of the square which
    CH 714 795 A1 define, with the head and the base of the tooth, the rectangle respectively the square. This applies even if the first flank and the second flank have a certain curvature.
    In this context, the height of a tooth indicates the distance between the top of a flank (that is to say its point furthest from the bottom of the teeth) and the bottom (flat or round) of the teeth in correspondence of this side.
    A tooth is symmetrical if, for example, the height, the shape of the first flank of the tooth as well as the inclination of the flank relative to the bottom (flat or round) of the teeth in correspondence of this flank is substantially identical to the height, respectively forms the inclination of the second flank of the tooth.
    A substantially pointed tooth which has symmetry with respect to an axis belonging to a plane perpendicular to the main plane of a toothed wheel to which the tooth belongs, this plane passing through the axis of rotation of the toothed wheel and by the distal end (tip) of the tooth is an example of a symmetrical tooth.
    A tooth having a flat head which has symmetry with respect to an axis belonging to a plane perpendicular to the main plane of a toothed wheel to which the tooth belongs, this plane passing through the axis of rotation of the toothed wheel and through the central point of the flat head of the tooth is another example of a symmetrical tooth.
    The first return of the solutions of the state of the art is driven in a known manner by the sliding pinion so that, depending on the direction of rotation imposed on the first returning via the winding stem, the sliding mobile is moved in a position where the second return drive (directly or indirectly, that is to say via one or more intermediate mobiles) the first display member by rotating in a first direction of rotation.
    In this position, or in another position, the third reference drives (directly or indirectly) a second display member.
    The known portable mobile therefore comprises three different stages for carrying out two corrections, which does not allow the thickness of the timepiece to be optimized.
    In addition, in the event that the references are not coaxial, the occupancy of space of the portable mobile is not optimal. An example of such a portable mobile is described in document CH703697, in which the portable mobile comprises two driven wheels (corresponding to the second and third references above) at least partially superimposed. These wheels are not coaxial. The profile of the teeth of the driven wheels can be individualized in order to adapt it to that of the mobiles with which they are intended to cooperate. Indeed, these mobiles can have different teeth. In the example described in this document, a mobile can correct the display of the date and the other the display of a second time zone.
    Another known example of the portable mobile comprises a first reference and a second reference, each reference belonging to a stage differ from the portable mobile. However, this mobile player allows only one correction to be made. Document CH 684 920 proposes to use a portable mobile comprising a first reference driven in a known manner by the sliding pinion (reference 19 in FIG. 1 of this document), and a second reference (reference 21 in FIG . 1 of this document) which, according to the direction of rotation which is imposed on the sliding pinion via the winding stem, will move either to a first position where it meshes via a gear train with the teeth of a first display member (a day star), ie in a second position where it meshes directly with the teeth of a second display member (a date ring).
    The document CH 684 920 is completely silent as to the characteristics of the second reference.
    In case the two mobile displays included different teeth, for example teeth having a different shape, we do not understand how the second reference of this document would allow an effective correction of both the indication carried by the first display unit and the indication carried by the second display unit.
    Brief Summary of the Invention An object of the present invention is to provide a timepiece free from the limitations of known timepieces.
    Another object of the invention is to provide a timepiece having a reduced thickness while allowing effective correction of the indications carried by two display members whose drive is provided by mobiles comprising different teeth , that is to say having different teeth, for example having a different shape, height and / or inclination of the flanks.
    According to the invention, these aims are achieved in particular by means of a timepiece according to claim 1.
    This solution has the particular advantage over the prior art of reducing the thickness of the timepiece because it includes two references, while allowing the correction of the indication carried by two display members whose drive is provided by mobiles comprising different teeth: this is possible thanks to the fact that the second reference comprises at least one asymmetrical tooth.
    CH 714 795 A1 In this context, the expression “asymmetric tooth” indicates that the height, the shape of the first flank of this tooth and / or its inclination relative to the bottom (flat or round) of the corresponding teeth of this first side is substantially different from the height, respectively forms the inclination of the second side of the tooth.
    The presence of a first asymmetric tooth allows effective correction of the indications carried by two display members whose drive is provided by mobiles comprising different teeth, because a side of this tooth is adapted to drive the first mobile and another flank is adapted to drive the second mobile. It is thus possible to adapt each side of the first tooth to the type of mobile that it is supposed to drive.
    In a variant, the second reference according to the invention comprises a single tooth.
    The first display mobile generally comprises continuous toothing, comprising teeth which are all identical to each other. The teeth are generally spaced apart by a constant step along the entire toothing. The same considerations apply to the second display mobile.
    In a variant, each tooth of the first display mobile comprises a third flank and a fourth flank: in this variant, the first flank of the tooth of the second return is arranged to cooperate with this third flank, so as to cause the first display mobile.
    In a variant, each tooth of the second display mobile comprises a fifth flank and a sixth flank: in this variant, the second flank of the tooth of the second return is arranged to cooperate with this fifth flank, so as to cause the second display mobile.
    In a variant, the first flank of the tooth of the second reference has a height different from the height of the second flank. Indeed, in a preferred variant, a display mobile is a date ring which generally comprises teeth having a height substantially greater than that of the teeth of other mobile movement. The height of one of the sides of the tooth of the second return, in particular of the side which is intended to cooperate with this ring, is thus adapted to carry out the driving of this ring.
    In a variant, which can be combined with the previous one, the first flank of the first tooth of the second reference is substantially perpendicular to the bottom of the second reference, that is to say to the part of the second reference adjacent to the tooth of the second reference in correspondence of this first flank and devoid of teeth. In fact, in the preferred variant where the display mobile is a date ring which generally comprises teeth having a flank perpendicular to the bottom of the toothing of the ring, this characteristic of the tooth of the second return allows the driving of this ring.
    In a preferred variant, this tooth of the second reference is a first tooth which is followed by a second tooth. In a preferred variant, the second reference comprises only two teeth, namely the first tooth and the second tooth. In a preferred variant, the pitch between the first tooth and the second tooth corresponds substantially to the pitch of the toothing of a display mobile, for example the first display mobile. In a preferred variant, the shape of the second tooth is adapted substantially to the shape of the teeth of the first display mobile, so as to drive the first display mobile.
    Indeed, when the correction mechanism is actuated, the position of the first tooth when it comes into contact with a display mobile, for example the first display mobile, is random. The force of the contact can be broken down into two components, one tangential, that is to say substantially normal to the radius of the first display mobile, and the other radial, that is to say along the direction of the radius of the first display mobile.
    It is possible that the radial component is zero or negligible compared to the tangential one, which allows excellent transmission of the torque from the second reference to the first display unit. It is also possible that the radial component of this contact becomes too large compared to the tangential one, which could block and damage one or more components of the timepiece, for example and without limitation the first display mobile or the winding stem.
    The presence of the second tooth makes it possible to solve this problem, because it makes it possible to give a substantially tangential force to the first display mobile before the first tooth comes into contact with the first display mobile.
    In other words, the second tooth makes it possible to further improve the transmission of the torque on the part of the second reference to the first display mobile and / or to prevent blocking and / or breakage of one or more components of the timepiece.
    In a preferred variant, this second tooth is symmetrical. In another preferred variant, the height of this second tooth (corresponding to the height of each of the two symmetrical flanks) is smaller than the height of the highest flank of the first tooth. Indeed, in a preferred variant, the second tooth does not cause the toothing of the second display mobile (the date ring, for example).
    In another preferred variant, each second tooth is followed by a third tooth. In a preferred variant, the second reference comprises only three teeth, namely the first tooth, the second tooth and the third tooth. In a preferred variant, the pitch between the second and the third tooth corresponds substantially to the
    CH 714 795 A1 pitch between the first tooth and the second tooth, which in turn corresponds substantially to the pitch of the toothing of a display mobile, for example the first display mobile.
    Similarly to the second tooth, the presence of the third tooth allows the contact force with the first display mobile to be substantially tangential to the first display mobile in the event that this was not possible or that was partially possible with the first tooth and / or the second tooth.
    In other words, the third tooth makes it possible to further improve the transmission of torque on the part of the second reference to the first display mobile.
    In a preferred variant, this third tooth is symmetrical. In another preferred variant, the height of this third tooth (corresponding to the height of each of the two symmetrical flanks) is smaller than the height of the second tooth. Indeed, in a preferred variant, the third tooth also does not cause the toothing of the second display mobile (the date ring, for example).
    In a preferred variant, the second reference therefore comprises a single group of three teeth, in particular a single group comprising a first tooth, a second tooth and a third tooth. The heights of these teeth decrease from the first tooth (one of the sides of which has the greatest height). The second tooth is therefore between the first and the third.
    In the case where the second reference comprises a single group of three teeth, it also includes an area devoid of teeth. In other words, the toothing of the second reference is "discontinuous" because it is not present along the entire edge of the second reference. In other words, the pace of the second referral is not always constant.
    For example, the second reference comprises a first pitch (that which separates the first tooth from the second and possibly the second from the third, and which corresponds substantially to the pitch of the toothing of the first mobile) and a second pitch (that between the flank of the first tooth which is not consecutive to a flank of the second tooth, and the flank of the third tooth which is not consecutive to the flank of the second tooth) larger from the first step, for example at minus five times the size of the first step.
    Those skilled in the art will understand that this group of teeth could include another whole number N of teeth having decreasing heights, and separated by a pitch which corresponds substantially to the pitch of the teeth of the first mobile. However, this group of teeth should not cover the entire perimeter of the second reference, in order to leave space to allow cooperation of the first tooth with the teeth of the second display mobile (the date ring for example), which has a different toothing from that of the first display mobile.
    In yet another variant, the timepiece according to the invention comprises at least two groups of teeth, preferably at least two groups comprising one, two, three or generally N teeth each. In a preferred variant, these groups of teeth are equidistant from each other. Two groups of consecutive teeth are separated from each other by an area devoid of teeth.
    Alternatively, the area devoid of teeth of the second reference is substantially straight or concave or convex.
    In a preferred variant, the first display member being a jumping display member, for example a jumping hand which indicates for example the time of a second time zone. Indeed, the correction mechanism according to the invention, which does not allow instantaneous correction of an indication since the position of the first tooth of the second gear is random when it comes into contact with the first display mobile, is well suited to a jumping display member.
    The second return of the mechanism according to the invention is preferably manufactured by the process known as "Liga" ("Lithography, Galvanoformung, Abformung"). It can alternatively be manufactured by stamping, wire or any other manufacturing process.
    The present invention also relates to a watch, for example a mechanical watch, in particular a mechanical chronograph watch, comprising the timepiece according to the invention. In a variant, this watch is at least partly a skeleton watch to allow the user to see at least part of the timepiece according to the invention.
    Brief description of the figures Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:
    Fig. 1 illustrates a top view of a watch comprising an embodiment of the timepiece according to the invention, when the second reference cooperates with the second display mobile.
    Fig. 2 illustrates a top view of a watch comprising an embodiment of the timepiece according to the invention, when the second reference cooperates with the first display mobile.
    CH 714 795 A1
    Fig. 3 illustrates another top view of a watch comprising an embodiment of the timepiece according to the invention, when the second reference cooperates with the first display mobile.
    Fig. 4 illustrates a top view of a detail of FIG. 1.
    Example (s) of embodiment (s) of the invention [0061] FIG. 1 illustrates a top view of a watch 1000 comprising an embodiment of the timepiece according to the invention.
    In this variant, the timepiece includes:
    - a first display mobile (wheel 1) driving via a intermediate wheel 90 a first display member (in this case an hour wheel 70 of a second time zone) making it possible to provide a first indication (the second time zone schedule in this case),
    a second display mobile which in this case corresponds to the second display member (the date ring 2) making it possible to provide a second indication 200 (the date for example), for example through a window not shown .
    The first display mobile 1 of FIG. 1 comprises a continuous set of teeth, comprising teeth 110 all identical to each other. The teeth are generally spaced apart by a constant P1 pitch along the entire toothing.
    The second display mobile 2 of FIG. 1 comprises a continuous set of teeth, comprising teeth 210 all identical to each other. The teeth are generally spaced apart by a constant step P2 along the entire toothing.
    The teeth 110 of the first display mobile 1, better visible in FIG. 4, are symmetrical. Fig. 4 shows a tooth 110 symmetrical with respect to the axis A1, which belongs to a plane substantially perpendicular to the plane of the first display mobile 1 and which passes through the tip of the tooth 110 and through the center of rotation C1 of this mobile display 1.
    As shown in FIG. 4, the height, the shape of the first flank 111 of each tooth 110 as well as its inclination relative to the bottom 102 of the toothing is substantially identical to the height, respectively forms the inclination of the second flank 112 defining with the first 111 each tooth 110.
    The correction mechanism illustrated in FIG. 1 corrects both the first indication (the time in a second time zone for example) and the second indication (the date of the date for example), and includes:
    - a winding stem 60,
    - a sliding pinion 80 carried by the winding stem,
    - a mobile player 3.
    The winding stem 60 has at its end a crown 62. In the case where the timepiece comprises a barrel (not shown), this stem not only allows manual winding of a barrel spring (not shown) but also to correct the information carried by the display units.
    The actuating mechanism of the sliding pinion 80 is well known to those skilled in the art and will not be described in detail here.
    The portable mobile includes:
    a first reference 40 belonging to a first stage of the portable mobile 3 (a lower stage in this case, that is to say on the plate side of the movement), and
    - A second reference 30 which in the illustrated example is coaxial with the first reference 40 (they share the same axis 50) and belongs to a second stage of the portable mobile 3 differ from the first stage (an upper stage in this case, it i.e. on the dial side of the movement).
    In the example illustrated, the portable mobile 3 comprises only two stages, which makes it possible to reduce the thickness of the timepiece according to the invention.
    In known manner, the first gear 40 is driven by the sliding pinion 80 so that, according to the direction of rotation imposed on the first gear via the winding rod 60, the mobile walking gear 3 is moved into a first position where the second reference 30 drives through the display mobile 1 a first display member (the hour wheel 70 in this case) by rotating in a first direction of rotation (illustrated by the arrow F1 in FIGS. 2 and 3), and in a second position (visible in FIG. 1) where the second reference 30 drives the second display member 2 by turning in a second direction of rotation opposite to the first (illustrated by the arrow F2 on the fig. 1).
    According to the invention, the second reference 30 comprises at least a first tooth 310, better visible in FIG. 4, this first tooth being asymmetrical, since it lacks any axis of symmetry as defined above.
    In fact, the height, the shape of the first flank 311 of this tooth and / or its inclination relative to the bottom 302 of the teeth is substantially different from the height, respectively the inclination of the second flank 312 defining with the first 311 the tooth 310.
    CH 714 795 A1 The presence of a first asymmetrical tooth 310 enables effective correction of the indications carried by the two display members, the drive of which is ensured by mobiles 1,2 comprising different teeth.
    Indeed, in the example illustrated, the sidewall 311 is adapted to drive the first mobile 1 and the other side 312 is adapted to drive the second mobile 2. It is thus possible to adapt each side of the first tooth to the type of mobile that the sidewall is supposed to drive.
    In other words, the first side 311 of the first tooth 310 of the second reference 30 is arranged to cooperate with the side 111 of the first mobile 1.
    Likewise, the second flank 312 of the first tooth 310 of the second reference 30 is arranged to cooperate with the flank 212 of the second mobile 2.
    In the variant of FIGS. 1 to 4, the second flank 312 of the first tooth 310 of the second reference 30 has a height H2, visible in FIG. 4, different from the height H1 of the first flank 311. In fact, in the variant illustrated in FIGS. 1 to 3, the second display mobile 2 is a date ring which generally comprises teeth 210 having a height substantially greater than that of the teeth of other mobile movements. The height of the flank 312 of the first tooth 310, this flank 312 being intended to cooperate with this ring 2, is thus adapted to carry out the driving of this ring 2.
    In the variant illustrated in the figures, the first flank 311 of the first tooth 310 of the second reference 30 is substantially perpendicular to the bottom 302 of the second reference, that is to say to the part of the second reference adjacent to the first tooth 310 and devoid of teeth. Indeed, in the variant where the display mobile 2 is a date ring which generally comprises teeth having a flank 212 perpendicular to the bottom 202 of the toothing of the ring, this characteristic of the first tooth 310 allows the drive of this ring 2.
    In the variant of FIGS. 1 to 4, the first tooth 310 is followed by a second tooth 320. In a preferred variant (not shown) the second reference comprises only two teeth, namely the first tooth and the second tooth.
    In the variant illustrated in FIG. 4, the pitch P3 between the first tooth 310 and the second tooth 320 corresponds substantially to the pitch P1 of the toothing of the first display mobile 1. Furthermore, in this illustrated variant, the shape of the second tooth 320 corresponds substantially to the shape teeth of the first display mobile 1.
    Indeed, when the correction mechanism is actuated, the position of the first tooth 310 when it comes into contact with the first display mobile 1, is random. The contact force can be broken down into two components, one tangential, that is to say substantially normal to the radius r (illustrated in FIG. 2) of the first display mobile 1, and the other radial, that is to say along the direction of the radius r of the first display mobile 1.
    It is possible that the radial component is zero or negligible compared to the tangential component, which allows excellent transmission of the torque from the second reference 30 to the first display mobile 1. It is also possible that the radial component of this contact becomes too large with respect to the tangential component, which could lead to displacement or even damage of at least one component of the timepiece.
    The presence of the second tooth 320 makes it possible to solve this problem, because it allows the force of contact with the first display mobile 1 to be substantially tangential to the first display mobile 1 before the tooth 310 enters. in contact with the teeth of the first display mobile.
    In other words, the second tooth 320 makes it possible to further improve the transmission of torque from the second reference 30 to the first display mobile 1.
    As illustrated in FIG. 3, the presence of the second tooth also makes it possible to directly drive the first display mobile in the event that the position of the first tooth 310 during contact between the second gear 30 and the first mobile 1 does not allow it or would allow it not effectively.
    In the variant of FIGS. 1 to 4, this second tooth 320 is symmetrical. Fig. 4 shows a tooth 320 symmetrical with respect to the axis A2, which belongs to a plane substantially perpendicular to the plane of the second mobile 30 and which passes through the tip of the tooth 320 and through the center of rotation C3 of the second mobile 30.
    In another preferred variant, the height of this second tooth 320 (corresponding to the height of each of the two symmetrical flanks) is smaller than the height H2 of the highest flank of the first tooth. In fact, in a preferred variant, the second tooth never comes into contact with the teeth of the second display mobile (the date ring 2). In a preferred variant, the height of this second tooth (corresponding to the height of each of the two symmetrical flanks) corresponds substantially to the height H1 of the smallest flank of the first tooth 310.
    In the variant of FIGS. 1 to 4, each second tooth 320 is followed by a third tooth 330. In a variant (not shown) the second reference 30 comprises only three teeth, namely the first tooth 310, the second tooth 320 and the third tooth 330.
    CH 714 795 A1 In the variant of FIGS. 1 to 4, the pitch P4 between the second tooth 320 and the third tooth 330, visible in FIG. 4, corresponds substantially to the pitch P3 between the first tooth 310 and the second tooth 320, which in turn substantially corresponds to the pitch P1 of the teeth of the first display mobile.
    Similarly to the second tooth 320, the third tooth 330 makes it possible to further improve the transmission of torque from the second reference 30 to the first display mobile 1.
    In a preferred variant, this third tooth 330 is symmetrical. Fig. 4 shows a tooth 330 symmetrical with respect to the axis A3, which belongs to a plane substantially perpendicular to the plane of the second mobile 30 and which passes through the central point of the flat head of the tooth 330 and through the center of rotation C3 of the second mobile 30.
    In another preferred variant, the height of this third tooth (corresponding to the height of each of the two symmetrical flanks) is smaller than the height of the second tooth. Indeed, in a preferred variant, the third tooth also does not cause the toothing of the second display mobile (the date ring, for example).
    In the variant illustrated in FIGS. 1 to 4, the head of the third tooth 330 is substantially flat. However, this characteristic is not essential and the head of the third tooth 330 could alternatively be rounded or pointed, provided that the height of this third tooth 330 is less than that of the second tooth 320.
    In a preferred variant (not illustrated), the second reference 30 therefore comprises a single group of three teeth, in particular a single group comprising a first tooth 310, a second tooth 320 and a third tooth 330. The heights of these teeth are decreasing from the first tooth (which has one of the sides with the greatest height) if the second mobile is traversed in the direction F1 indicated in figs. 2 and 3. The second tooth 320 is therefore between the first 310 and the third 330.
    In the case (not shown) where the second reference 30 comprises a single group of three teeth, it also includes an area devoid of teeth. In other words, the toothing of the second reference is "discontinuous" because it is not present along the entire edge of the second reference. In other words, the pace of the second referral is not always constant.
    For example, the second reference 30 comprises a first pitch (that which separates the first tooth from the second and possibly the second from the third, and which corresponds substantially to the pitch of the toothing of the first mobile) and a second pitch (that between the flank 311 of the first tooth which is not consecutive to a flank of the second tooth, and the flank of the third tooth which is not consecutive to the flank of the second tooth) larger than the first pitch, by example at least five times larger than the first step.
    The skilled person will understand that this group of teeth could include an integer N of teeth having decreasing heights, and separated by a pitch which corresponds substantially to the pitch of the teeth of the first mobile. However, this group of teeth must not cover the entire perimeter of the second reference 30, in order to leave space to allow cooperation of the first tooth 310 with the teeth 201 of the second display mobile 2 (the date ring for example), which has a different toothing from that of the first display mobile.
    In yet another variant (not shown), the second reference 30 of the timepiece according to the invention comprises at least two groups of teeth, preferably at least two groups of N tooth (s) each. For example in the variant of FIGS. 1 to 4, the second reference 30 comprises three groups of teeth. In this variant, these three groups of teeth are equidistant from each other (12071207120 °). However, equidistance is not essential and other arrangements of these three groups of teeth could be imagined (for example 11071307120 °). These groups of teeth are separated from one another by a zone devoid of teeth 302.
    In the variant illustrated in FIGS. 1 to 4, each group of three teeth includes teeth which are all different from each other. This characteristic can be generalized to any number of groups of teeth, each group of teeth comprising all different teeth, for example because they have at least a different height.
    In the variant illustrated in FIGS. 1 to 4, the area devoid of teeth 302 of the second reference 30 is substantially rectilinear. Alternatively, it could be concave or convex. It could also be straight between the first and second group of teeth, and concave or convex between the second and third group of teeth.
    In a preferred variant, the first display member 1 is a jumping display member, for example a jumping hand which indicates the time of a second time zone. Indeed, the correction mechanism according to the invention, which does not allow instantaneous correction of an indication since the position of the first tooth 310 of the second reference is random when it comes into contact with the first display mobile 1, is indeed suitable for a jumping display member, because its correction is done in discrete increments since when the second reference meets the first display mobile, the two have a random angular position.
    The second reference 30 of the mechanism according to the invention is preferably manufactured by Liga (Lithography, Galvanoformung, Abformung). It can alternatively be manufactured by other manufacturing processes.
    CH 714 795 A1
    Reference symbols used in the figures [0105]
    First display mobile
    Second display mobile
    Mobile player
    Second referral
    First referral
    Mobile axis
    Winding stem
    Winding stem crown
    Hour wheel of a second time zone
    Sliding gear
    Intermediate wheel
    102 Background of the first display mobile
    110 Tooth of the first display mobile
    111 First flank of the tooth of the first display mobile
    112 Second flank of the tooth of the first display mobile
    200 Display of the second display member
    202 Background of the second display unit
    210 Tooth of the second display mobile
    211 First flank of the tooth of the second display mobile
    212 Second flank of the tooth of the second display mobile
    301 Zone provided with teeth of the second return
    302 Zone devoid of teeth of the second reference
    310 First tooth of second referral
    311 First flank of the first tooth of the second reference
    312 Second flank of the first tooth of the second reference
    320 Second tooth of the second reference
    330 Third tooth of the second reference
    1000 Watch
    P1 Pitch of the teeth of the first display mobile
    P2 No teeth on the second display mobile
    P3 First step of the second referral
    P4 Second step of the second reference
    F1 First direction of rotation
    F2 Second direction of rotation
    CH 714 795 A1
    H1 Side height 311
    H2 Flank height 312 r Radius of the first display mobile
    C1 Rotation center of the first display unit
    C3 Center of rotation for the second referral
    A1 Axis of symmetry of tooth 110
    权利要求:
    Claims (14)
    [1]
    A2 Axis of symmetry of tooth 320
    A3 Axis of symmetry of tooth 330
    claims
    1. Timepiece including:
    - a first display mobile (1) driving via a first toothing a first display member making it possible to provide a first indication,
    - a second display mobile (2) driving via a second toothing different from the first a second display member making it possible to provide a second indication,
    a mechanism for correcting both the first indication and the second indication, the correction mechanism comprising:
    a winding stem (60), a sliding pinion (80) carried by said winding stem (60),
    - a mobile player (3) comprising:
    a first reference (40) belonging to a first stage of said portable mobile, and
    - A second return (30) and belonging to a second stage of said portable mobile (3), different from said first stage, said first return (40) being driven by said portable pinion (80) so that, according to the direction of rotation imposed on the first gear (40) via the winding stem, the portable mobile (3) is moved to a first position where the second gear (30) drives the first display mobile (1) by turning in a first direction of rotation (F1), and in a second position where the second gear (30) drives the second display mobile (2) by turning in a second direction of rotation (F1) opposite to the first, characterized in that said second gear ( 30) comprises a tooth (310), said tooth (310) being asymmetrical.
    [2]
    2. Timepiece according to claim 1, said tooth (310) comprising a first side (311) and a second side (312), the teeth of the first display mobile (1) comprising a third side (111) and a fourth flank (112), said first flank (311) being arranged to cooperate with the third flank (111) so as to drive the first display mobile (1), the teeth of the second display mobile (2) comprising a fifth flank (211) and a sixth flank (212), said second flank (312) being arranged to cooperate with the sixth flank (212) so as to drive the second display mobile (2).
    [3]
    3. Timepiece according to claim 2, said first and second sides (311, 312) having different heights (H1, H2).
    [4]
    4. Timepiece according to one of claims 2 or 3, the second side (312) being substantially perpendicular to a bottom (302) of the second gear (30).
    [5]
    5. Timepiece according to one of claims 1 to 4, said tooth (310) being a first tooth, said first tooth being (310) being followed by a second tooth (320), to improve the torque transmission of the part of the second reference (30) to the first display mobile (1) and / or prevent the blocking and / or breakage of one or more components of the timepiece.
    [6]
    6. Timepiece according to claim 5, the pitch (P3) between the first tooth (310) and the second tooth (320) being substantially equal to the pitch (P1) of the toothing of the first display mobile (1) .
    [7]
    7. Timepiece according to one of claims 5 or 6, said second tooth (320) being symmetrical.
    CH 714 795 A1
    [8]
    8. Timepiece according to claim 7, the height of this second tooth (320) being smaller than the height (H1) of the highest side of the first tooth.
    [9]
    9. Timepiece according to one of claims 7 or 8, the height of the second tooth (320) being substantially equal to the height (H2) of the smallest side of the first tooth (310).
    [10]
    10. Timepiece according to one of claims 5 to 9, said second tooth (320) being followed by a third tooth (330), adapted to further improve the transmission of torque from the second reference (30) to the first display mobile (1).
    [11]
    11. Timepiece according to claim 10, the third tooth (330) being symmetrical.
    [12]
    12. Timepiece according to one of claims 10 or 11, the pitch between the second tooth (320) and the third tooth (330) being substantially equal to the pitch between the first tooth 310 and the second tooth (320).
    [13]
    13. Timepiece according to one of claims 5 to 12, the first tooth (310), the second tooth (320) and if has the third tooth (330) forming a group of teeth, the second gear comprising a single group of teeth.
    [14]
    14. Timepiece according to one of claims 5 to 13, the second reference (30) comprising at least two groups of teeth, preferably equidistant.
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    同族专利:
    公开号 | 公开日
    CH714795A9|2020-01-15|
    EP3765922A1|2021-01-20|
    WO2019175687A1|2019-09-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2017101A1|1968-08-30|1970-05-15|Ebauches Sa|
    CH684920GA3|1993-08-31|1995-02-15|Ebauchesfabrik Eta Ag|Timepiece.|
    WO2002077721A1|2001-03-21|2002-10-03|Glashütter Uhrenbetrieb GmbH|Device for adjusting a time indicator|
    CH703697A2|2010-09-02|2012-03-15|Manuf La Joux Perret Sa|Correction device for use in watch movement to correct date and Greenwich mean time zone indications, has driven wheels engaged with mobile parts acting on two functions when lever is in end positions, respectively|
    FR2283477B1|1974-08-27|1977-03-25|Ebauches Sa|
    CH645235A|1981-04-23|1984-09-28|
    US9164482B2|2012-08-21|2015-10-20|Rolex S.A.|Coupling lever and coupling device for a horology mechanism|EP3882718A1|2020-03-18|2021-09-22|Patek Philippe SA Genève|Device for correction of at least one complication module of a timepiece|
    法律状态:
    2020-01-15| PK| Correction|Free format text: CORRECTION: RAPPORT DE RECHERCHE. |
    优先权:
    申请号 | 申请日 | 专利标题
    CH00338/18A|CH714795A9|2018-03-16|2018-03-16|Timepiece comprising a mechanism for correcting the indications provided by a first and second display member.|CH00338/18A| CH714795A9|2018-03-16|2018-03-16|Timepiece comprising a mechanism for correcting the indications provided by a first and second display member.|
    PCT/IB2019/051356| WO2019175687A1|2018-03-16|2019-02-20|Timepiece|
    EP19709799.1A| EP3765922A1|2018-03-16|2019-02-20|Timepiece|
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