EP3765922B1 - Uhr - Google Patents

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Publication number
EP3765922B1
EP3765922B1 EP19709799.1A EP19709799A EP3765922B1 EP 3765922 B1 EP3765922 B1 EP 3765922B1 EP 19709799 A EP19709799 A EP 19709799A EP 3765922 B1 EP3765922 B1 EP 3765922B1
Authority
EP
European Patent Office
Prior art keywords
tooth
mobile
display
flank
teeth
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
EP19709799.1A
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English (en)
French (fr)
Other versions
EP3765922A1 (de
Inventor
Laurence DONZE
Caroline FRELECHOX
Bruno BORLON
Yannick Chatelain
David LENGACHER
Philippe Ruedin
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.)
LVMH Swiss Manufactures SA
Original Assignee
LVMH Swiss Manufactures SA
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Filing date
Publication date
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Publication of EP3765922A1 publication Critical patent/EP3765922A1/de
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Publication of EP3765922B1 publication Critical patent/EP3765922B1/de
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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually
    • 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
    • G04B27/001—Internal gear therefor, e.g. for setting the second hand or for setting several clockworks
    • 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
    • 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
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values
    • 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
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/026—Mechanical devices for setting the time indicating means by making use of the winding means for several clockworks or pairs of hands and/or supplementary functions

Definitions

  • the present invention relates to a timepiece, in particular a timepiece comprising a mechanism for correcting the indications provided by a first display member and by a second display member.
  • 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.
  • 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 calendar (annual, perpetual, day/date, etc.); moon phases, tides, 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 mobile display comprising a set of teeth.
  • This mobile can be directly connected to the display member, driving it by direct contact, or else one or more intermediate mobiles between the display mobile and the display member drive the display member by the mobile display.
  • the display member is a hand, for example an hour hand
  • its movement is ensured by a toothed wheel hours kinematically linked to this hand.
  • This hour wheel can be driven, directly or indirectly, by a display mobile.
  • this ring or disc may comprise a toothing which ensures its movement.
  • a display member includes teeth, for example in the case of a disk or a ring, the notion of display member can coincide with that of display mobile.
  • These correction mechanisms generally comprise 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 mobile in translation in the direction of this main axis and can occupy different axial positions. It is also mobile in rotation around this axis: it can rotate clockwise and also counterclockwise.
  • the winding stem is movable between at least a first correction position and a winding position. In some cases, it may occupy a second corrective position.
  • this winding stem carries a sliding pinion (or sliding pinion), which is movable on the winding stem.
  • the sliding pinion moves in a known manner on the winding stem, allowing a kinematic connection with a sliding wheel mounted freely in rotation.
  • This portable mobile is configured to cooperate directly or via a gear train with the teeth of the mobiles which allow the driving of the first display member or the second display member, so as to correct the information carried by these display members.
  • a known example of this walkman mobile comprises a first return, a second return and a third return, each return belonging to a floor different from the walkman mobile.
  • the term “return” designates a toothed wheel, that is to say comprising at least one tooth.
  • the known transmissions are wheels having a toothing along their entire edge, this toothing being continuous.
  • the pitch between two teeth that is to say the distance between two consecutive teeth, is the same for the entire transmission.
  • the teeth of known deflections also all have the same shape. They are generally symmetrical, that is to say they include 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).
  • 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 mobile) 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 asymmetrical tooth.
  • 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.
  • first flank and the second flank are the sides of the rectangle respectively of the square which 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.
  • the height of a tooth indicates the distance between the top of a flank (i.e. its furthest point from the bottom of the toothing) and the bottom (flat or round) of the toothing in correspondence of this flank.
  • 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, form respectively 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 principal 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 end distal (the tip) of the tooth is an example of a symmetrical tooth.
  • a tooth having a flat head which is symmetrical 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 The center point of the tooth's flat head is another example of a symmetrical tooth.
  • the first transmission of the solutions of the state of the art is driven in a known manner by the sliding pinion so that, according to the direction of rotation imposed on the first transmission via the winding stem, the sliding mobile is moved into a position where the second referral leads (directly or indirectly, i.e. via one or more intermediate mobiles) the first display member by rotating in a first direction of rotation.
  • the third reference drives (directly or indirectly) a second display member.
  • the known sliding mobile therefore comprises three different stages for carrying out two corrections, which does not make it possible to optimize the thickness of the timepiece.
  • the space occupation of the personal portable device is not optimal.
  • the sliding 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 may have different teeth.
  • one mobile is used to correct the date display and the other the display of a second time zone.
  • walkman mobile comprises a first reference and a second reference, each reference belonging to a floor different from the walkman mobile.
  • this walkman mobile allows you to make a single correction.
  • the document CH684920 proposes to use a sliding wheel set comprising a first transmission driven in a known manner by the sliding pinion (reference 19 on the figure 1 of this document), and a second reference (reference 21 on the figure 1 of this document) which, depending on the direction of rotation imposed on the sliding pinion via the winding stem, will move either into a first position where it meshes via a gear train with the toothing of a first display member (a day star), or into a second position where it meshes directly with the toothing of a second display device (a date ring).
  • the documents EP2701014 , FR2283477 and FR2590694 describe a timepiece in which the first reference belongs to a first stage of a portable mobile and the second reference belongs to a second stage of the portable mobile, the teeth of the second reference being arranged to drive a single mobile display.
  • An object of the present invention is to provide a timepiece exempt 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 ensured by mobiles comprising different toothings, it that is to say having different teeth, for example having a different shape, height and/or inclination of the flanks.
  • 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 ensured by mobiles comprising different teeth: this is possible thanks to the fact that the second transmission comprises at least one asymmetrical tooth.
  • asymmetrical tooth indicates that the height, the shape of the first flank of this tooth and/or its inclination with respect to the bottom (flat or round) of the teeth in correspondence of this first flank is significantly different of the height, form respectively inclination of the second flank of the tooth.
  • first asymmetrical tooth allows effective correction of the indications carried by two display members whose drive is ensured by mobiles comprising different toothings, because one side of this tooth is adapted to drive the first mobile and a other flank is adapted to drive the second mobile. It is thus possible to adapt each flank of the first tooth to the type of mobile that it is supposed to drive.
  • the second transmission according to the invention comprises a single tooth.
  • the first display mobile generally comprises continuous toothing, comprising teeth that are all identical to each other.
  • the teeth are generally spaced by a constant pitch along the entire toothing. The same considerations apply to the second display mobile.
  • 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 reference is arranged to cooperate with this third flank, so as to drive the first mobile display.
  • 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 reference is arranged to cooperate with this fifth flank, so as to drive the second mobile display.
  • the first flank of the tooth of the second transmission has a different height from the height of the second flank.
  • a display mobile is a date ring which generally comprises teeth having a height substantially greater than that of the teeth of other mobiles of a movement. The height of one of the flanks of the tooth of the second transmission, in particular of the flank which is intended to cooperate with this ring, is thus adapted to carry out the drive of this ring.
  • the first flank of the first tooth of the second crank is substantially perpendicular to the bottom of the second crank, that is to say to the part of the second crank adjacent to the tooth of the second return in correspondence of this first flank and devoid of teeth.
  • the mobile display 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 reference allows the driving of this ring.
  • this tooth of the second gear is a first tooth which is followed by a second tooth.
  • the second reference comprises only two teeth, namely the first tooth and the second tooth.
  • the pitch between the first tooth and the second tooth corresponds substantially to the pitch of the teeth of a display mobile, for example the first display mobile.
  • the shape of the second tooth is substantially adapted to the shape of the teeth of the first display mobile, so as to drive the first display mobile.
  • the position of the first tooth when it comes into contact with a mobile display is random.
  • the contact force can be broken down into two components, one tangential, that is to say substantially normal to the radius of the first mobile display, and the other radial, that is to say along the direction of the ray of the first mobile display.
  • the radial component it is possible for the radial component to be zero or negligible compared to the tangential one, which allows excellent transmission of the torque from the second reference to the first display mobile. 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 in a non-limiting way the first mobile display or the winding stem.
  • the presence of the second tooth makes it possible to solve this problem, since it makes it possible to impart a substantially tangential force to the first display mobile before the first tooth comes into contact with the first display mobile.
  • the second tooth makes it possible to further improve the transmission of torque from the second transmission to the first display mobile and/or to prevent the jamming and or breakage of one or more components of the timepiece.
  • this second tooth is symmetrical.
  • 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.
  • the second tooth does not drive the toothing of the second mobile display (the date ring, for example).
  • each second tooth is followed by a third tooth.
  • the second reference comprises only three teeth, namely the first tooth, the second tooth and the third tooth.
  • the pitch between the second and the third tooth corresponds substantially to the pitch between the first tooth and the second tooth, which in turn corresponds substantially to the pitch of the teeth of a display mobile, for example the first display mobile.
  • the presence of the third tooth allows the force of contact with the first mobile display to be substantially tangential to the first mobile display in the event that this was not possible or this was partially possible with the first tooth and/or the second tooth.
  • the third tooth makes it possible to further improve the transmission of torque from the second reference to the first display mobile.
  • this third tooth is symmetrical.
  • 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.
  • the third tooth also does not drive the toothing of the second mobile display (the date ring, for example).
  • 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. Heights of these teeth are decreasing from the first tooth (one of the flanks of which has the greatest height). The second tooth is therefore between the first and the third.
  • the second transmission comprises a single group of three teeth, it also comprises an area devoid of teeth.
  • the toothing of the second gear is "discontinuous", because it is not present along the entire edge of the second gear.
  • the pitch of the second return is not always constant.
  • the second transmission comprises a first pitch (that which separates the first tooth from the second and possibly the second from the third, and which substantially corresponds 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) greater than the first pitch, for example at least five times bigger from the first step.
  • this group of teeth could comprise 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.
  • this group of teeth should not cover the entire perimeter of the second gear, in order to leave space to allow cooperation of the first tooth with the teeth of the second mobile display (the date ring for example), which has a toothing different from that of the first mobile display.
  • the timepiece according to the invention comprises at least two groups of teeth, preferably at least two groups comprising one, two, three or as a general rule N teeth each.
  • these groups of teeth are equidistant from each other. Two consecutive groups of teeth are separated from each other by an area devoid of teeth.
  • the zone devoid of teeth of the second transmission is substantially rectilinear or concave or convex.
  • 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.
  • the correction mechanism according to the invention which does not allow an instantaneous correction of an indication since the position of the first tooth of the second reference is random during its contact with the first mobile display, is well suited to a jumping display organ.
  • the second transmission of the mechanism according to the invention is preferably manufactured by the so-called “Liga” process (“Lithographie, Galvanoformung, Abformung”). It can alternatively be manufactured by stamping, wire or any other manufacturing process.
  • “Liga” process Lithographie, 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.
  • this watch is at least partly a skeleton watch to enable the user to see at least part of the timepiece according to the invention.
  • the figure 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.
  • the picture 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 mobile display.
  • the picture 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 mobile display.
  • the figure 4 illustrates a top view of a detail of the figure 1 .
  • the figure 1 illustrates a top view of a watch 1000 comprising an embodiment of the timepiece according to the invention.
  • the first display mobile 1 of the figure 1 comprises continuous toothing, comprising teeth 110 which are all identical to one another.
  • the teeth are generally spaced apart by a constant pitch P1 along the entire toothing.
  • the second display mobile 2 of the figure 1 comprises continuous toothing, comprising teeth 210 which are all identical to one another.
  • the teeth are generally spaced apart by a constant pitch P2 along the entire toothing.
  • the teeth 110 of the first mobile display 1, better visible on the figure 4 are symmetric.
  • the figure 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 d display 1.
  • the height, the shape of the first flank 111 of each tooth 110 as well as its inclination with respect to the bottom 102 of the teeth is substantially identical to the height, shape respectively inclination of the second flank 112 defining with the first 111 each tooth 110.
  • the winding stem 60 has a crown 62 at its end.
  • this stem not only makes it possible to manually wind a barrel spring (not shown) but also to correct the information carried by the display organs.
  • portable mobile 3 comprises only two stages, which makes it possible to reduce the thickness of the timepiece according to the invention.
  • the first gear 40 is driven by the sliding pinion 80 so that, depending on the direction of rotation imposed on the first gear via the winding stem 60, the sliding wheel set 3 is moved into a first position where the second reference 30 drives via the mobile display 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 on the figure 2 and 3 ), and in a second position (visible on the figure 1 ) where the second reference 30 drives the second display member 2 by rotating in a second direction of rotation opposite to the first (illustrated by the arrow F2 on the figure 1 ).
  • the second transmission 30 comprises at least one first tooth 310, better visible on the figure 4 , this first tooth being asymmetrical, since it lacks any axis of symmetry as defined above.
  • the height, the shape of the first flank 311 of this tooth and/or its inclination with respect to the bottom 302 of the toothing is substantially different from the height, shape respectively inclination of the second flank 312 defining with the first 311 the tooth 310.
  • first asymmetrical tooth 310 allows effective correction of the indications carried by the two display members, the drive of which is ensured by mobiles 1, 2 comprising different toothings.
  • flank 311 is adapted to drive the first mobile 1 and the other flank 312 is adapted to drive the second mobile 2. It is thus possible to adapt each flank of the first tooth to the type of mobile that the flank is supposed to carry.
  • the first flank 311 of the first tooth 310 of the second idler 30 is arranged to cooperate with the flank 111 of the first mobile 1.
  • the second flank 312 of the first tooth 310 of the second idler 30 is arranged to cooperate with the flank 212 of the second mobile 2.
  • the second flank 312 of the first tooth 310 of the second transmission 30 has a height H2, visible on the figure 4 , different from the height H1 of the first flank 311.
  • 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 mobiles of a movement. 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 drive this ring 2.
  • 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.
  • the mobile display 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 this ring 2 to be driven.
  • the first tooth 310 is followed by a second tooth 320.
  • the second transmission comprises only two teeth, namely the first tooth and the second tooth.
  • the pitch P3 between the first tooth 310 and the second tooth 320 substantially corresponds to the pitch P1 of the teeth of the first display mobile 1. teeth of the first display mobile 1.
  • the position of the first tooth 310 during its contact with the first mobile display 1 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 r (illustrated on the picture 2 ) of the first mobile display 1, and the other radial, that is to say along the direction of the radius r of the first mobile display 1.
  • the radial component it is possible for the radial component to be 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 great relative to the tangential component, which could lead to displacement or even damage to 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 mobile display 1 to be substantially tangential to the first mobile display 1 before the tooth 310 comes into contact with the teeth of the first mobile display.
  • 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.
  • the presence of the second tooth also makes it possible to drive the first display mobile directly in the event that the position of the first tooth 310 during contact between the second reference 30 and the first mobile 1 does not allow it or allows it to inefficient way.
  • this second tooth 320 is symmetrical.
  • the figure 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.
  • the height of this second tooth 320 (corresponding to the height of each of the two symmetrical flanks) is less than the height H2 of the highest flank of the first tooth. Indeed, in a preferred variant, the second tooth never comes into contact with the toothing of the second mobile display (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.
  • each second tooth 320 is followed by a third tooth 330.
  • the second transmission 30 comprises only three teeth, namely the first tooth 310, the second tooth 320 and the third tooth 330.
  • the pitch P4 between the second tooth 320 and the third tooth 330 corresponds substantially to the pitch P3 between the first tooth 310 and the second tooth 320, which in turn corresponds substantially to the pitch P1 of the toothing of the first display mobile.
  • 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.
  • this third tooth 330 is symmetrical.
  • the figure 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.
  • this third tooth (corresponding to the height of each of the two symmetrical flanks) is smaller than the height of the second tooth.
  • the third tooth also does not drive the toothing of the second mobile display (the date ring, for example).
  • the head of the third tooth 330 is substantially flat.
  • 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 lower than that of the second tooth 320.
  • the second transmission 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 decrease at starting from the first tooth (which has one of the flanks with the highest height large) if the second mobile is traversed in the direction F1 indicated on the figure 2 and 3 .
  • the second tooth 320 is therefore between the first 310 and the third 330.
  • the second gear 30 comprises a single group of three teeth, it also comprises a zone devoid of teeth.
  • the toothing of the second gear is "discontinuous", because it is not present along the entire edge of the second gear.
  • the pitch of the second return is not always constant.
  • the second transmission 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 teeth of the first mobile) and a second pitch (that between the side 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) greater than the first pitch, for example at least five times larger than the first pitch.
  • this group of teeth could comprise an integer 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.
  • 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 mobile display 2 (the date ring for example), which has a toothing different from that of the first mobile display.
  • the second intermediate wheel 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.
  • the second reference 30 comprises three groups of teeth.
  • these three groups of teeth are equidistant from each other (120°/120°/120°).
  • the equidistance is not essential and other arrangements of these three groups of teeth could be imagined (for example 110°/130°/120°).
  • These groups of teeth are separated from each other by a zone devoid of teeth 302.
  • each group of three teeth includes teeth that are all different from each other.
  • This characteristic can be generalized to any number of groups of teeth, each group of teeth comprising teeth that are all different, for example because they have at least one different height.
  • the toothless zone 302 of the second reference 30 is substantially rectilinear.
  • it could be concave or convex. It could also be rectilinear between the first and the second groups of teeth, and concave or convex between the second and the third group of teeth.
  • the first display member 1 is a jumping display member, for example a jumping hand which indicates the time of a second time zone.
  • the correction mechanism according to the invention which does not allow an instantaneous correction of an indication since the position of the first tooth 310 of the second reference is random during its contact with the first mobile display 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 mobile display, the two have a random angular position.
  • the second transmission 30 of the mechanism according to the invention is preferably manufactured by Liga (Lithographie, Galvanoformung, Abformung). It can alternatively be manufactured by other manufacturing processes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)

Claims (15)

  1. Zeitmesser umfassend:
    - ein erstes Anzeigemobile (1), das über eine erste Verzahnung ein erstes Anzeigeglied antreibt, zur Bereitstellung einer erste Anzeige,
    - ein zweites Anzeigemobile (2), das über eine zweite Verzahnung, die von der ersten verschieden ist, ein zweites Anzeigeglied
    antreibt, zur Bereitstellung einer zweite Anzeige,
    - einen Korrekturmechanismus sowohl für die erste Anzeige als auch für die zweite Anzeige, wobei der Korrekturmechanismus umfasst:
    - eine Aufzugswelle (60),
    - ein von der Aufzugswelle (60) getragenes Schieberitzel (80),
    - ein Schiebeteil (3) mit:
    - einem ersten Umlenkrad (40), das zu einer ersten Stufe des besagten Schiebeteils gehört, und
    - einem zweite Umlenkrad (30), die zu einer zweiten Stufe des Schiebeteil (3) gehört, die sich von der ersten Stufe unterscheidet, wobei das erste Umlenkrad (40) durch das Schieberitzel (80) derart angetrieben wird, dass gemäß der Drehrichtung, die dem ersten Umlenkrad (40) über die Aufzugswelle aufgezwungen wird, das Schiebeteil (3) in eine erste Position bewegt wird, in der das zweite Umlenkrad (30) das erste Anzeigemobile (1) durch Drehen in einer ersten Drehrichtung (F1) antreibt, und in eine zweite Position, in der das zweite Umlenkrad (30) das zweite Anzeigemobile (2) durch Drehen in einer zweiten Drehrichtung (F1) antreibt, die der ersten entgegengesetzt ist, wobei
    das zweite Umlenkrad (30) einen Zahn (310) umfasst, wobei der Zahn (310) asymmetrisch ist, dadurch gekennzeichnet, dass
    der Zahn (310) eine erste Flanke (311) und eine zweite Flanke (312) umfasst, die Zähne des ersten Anzeigemobiles (1) eine dritte Flanke (111) und eine vierte Flanke (112) umfassen, wobei die erste Flanke (311) so angeordnet ist, dass sie mit der dritten Flanke (111) zusammenwirkt, um das erste Anzeigemobile (1) anzutreiben,
    die Zähne des zweiten Anzeigemobiles (2) eine fünfte Flanke (211) und eine sechste Flanke (212) umfassen, wobei die zweite Flanke (312) so angeordnet ist, dass sie mit der sechsten Flanke (212) zusammenwirkt, um das zweite Anzeigemobile (2) anzutreiben.
  2. Zeitmesser nach Anspruch 1, wobei die erste und die zweite Flanke (311, 312) unterschiedliche Höhen (H1, H2) aufweisen.
  3. Zeitmesser nach einem der Ansprüche 1 oder 2, wobei die zweite Flanke (312) im Wesentlichen senkrecht zu einem Boden (302) des zweiten Umlenkrads (30) ist.
  4. Zeitmesser nach einem der Ansprüche 1 bis 3, wobei der Zahn (310) ein erster Zahn ist, wobei auf den ersten Zahn (310) ein zweiter Zahn (320) folgt, um die Drehmomentübertragung von dem zweiten Umlenkrad (30) auf das erste Anzeigemobile (1) zu verbessern und/oder das Blockieren und/oder den Bruch einer oder mehrerer Komponenten der Zeitmesser zu verhindern.
  5. Zeitmesser nach Anspruch 4, wobei die Schrittweite (P3) zwischen dem ersten Zahn (310) und dem zweiten Zahn (320) im Wesentlichen gleich der Schrittweite (P1) der Verzahnung des ersten Anzeigemobils (1) ist.
  6. Zeitmesser nach einem der Ansprüche 4 oder 5, wobei der zweite Zahn (320) symmetrisch ist.
  7. Zeitmesser nach Anspruch 6, wobei die Höhe dieses zweiten Zahns (320) kleiner ist als die Höhe (H1) der höchsten Flanke des ersten Zahns.
  8. Zeitmesser nach einem der Ansprüche 6 oder 7, wobei die Höhe des zweiten Zahns (320) im Wesentlichen gleich der Höhe (H2) der kleinsten Flanke des ersten Zahns (310) ist.
  9. Zeitmesser nach einem der Ansprüche 4 bis 8, wobei auf den zweiten Zahn (320) ein dritter Zahn (330) folgt, der ausgebildet ist, die Drehmomentübertragung von dem zweiten Umlenkrad (30) auf das erste Anzeigemobile (1) weiter zu verbessern.
  10. Zeitmesser nach Anspruch 9, wobei der dritte Zahn (330) symmetrisch ist.
  11. Zeitmesser nach einem der Ansprüche 9 oder 10, wobei die Schrittweite zwischen dem zweiten Zahn (320) und dem dritten Zahn (330) im Wesentlichen gleich der Schrittweite zwischen dem ersten Zahn 310 und dem zweiten Zahn (320) entspricht.
  12. Zeitmesser nach einem der Ansprüche 4 bis 11, wobei der erste Zahn (310), der zweite Zahn (320) und, falls vorhanden, der dritte Zahn (330) eine Gruppe von Zähnen bilden, wobei das zweite Umlenkrad eine einzige Gruppe von Zähnen umfasst.
  13. Zeitmesser nach einem der Ansprüche 4 bis 12, wobei das zweite Umlenkrad (30) mindestens zwei Gruppen von Zähnen umfasst, die vorzugsweise in gleichen Abständen angeordnet sind.
  14. Zeitmesser nach einem der Ansprüche 1 bis 13, wobei das erste Anzeigeglied ein springendes Anzeigeglied ist.
  15. Uhr mit einem Zeitmesser nach einem der Ansprüche 1 bis 14.
EP19709799.1A 2018-03-16 2019-02-20 Uhr Active EP3765922B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00338/18A CH714795A9 (fr) 2018-03-16 2018-03-16 Pièce d'horlogerie comprenant un mécanisme de correction des indications fournies par un premier et deuxième organe d'affichage.
PCT/IB2019/051356 WO2019175687A1 (fr) 2018-03-16 2019-02-20 Pièce d'horlogerie

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EP3765922B1 true EP3765922B1 (de) 2023-01-04

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882718A1 (de) * 2020-03-18 2021-09-22 Patek Philippe SA Genève Korrekturvorrichtung mindestens einer komplikation einer uhr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664119A (en) * 1968-08-30 1972-05-23 Ebauches Sa Calendar electric timepiece
FR2283477A1 (fr) * 1974-08-27 1976-03-26 Ebauches Sa Mouvement de montre-calendrier a dispositif correcteur du quantieme et du jour
CH645235GA3 (de) * 1981-04-23 1984-09-28
CH684920B5 (fr) * 1993-08-31 1995-08-15 Ebauchesfabrik Eta Ag Pièce d'horlogerie.
EP1373988B1 (de) * 2001-03-21 2012-05-09 Glashütter Uhrenbetrieb GmbH Einstelleinrichtung für einen zeitanzeiger
CH703697B1 (fr) * 2010-09-02 2015-06-15 Manuf La Joux Perret Sa Dispositif de correction et mouvement horloger comprenant ce dispositif de correction
EP2701014A1 (de) * 2012-08-21 2014-02-26 Rolex Sa Kupplungswippe und Kupplungsvorrichtung für Uhrmechanismus

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CH714795A9 (fr) 2020-01-15
EP3765922A1 (de) 2021-01-20
CH714795A1 (fr) 2019-09-30

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