EP4453664B1 - Uhr, die ein anzeigeorgan für eine ortszeit ht (home time) und ein anzeigeorgan für eine gmt-zeit (greenwich mean time) umfasst - Google Patents

Uhr, die ein anzeigeorgan für eine ortszeit ht (home time) und ein anzeigeorgan für eine gmt-zeit (greenwich mean time) umfasst

Info

Publication number
EP4453664B1
EP4453664B1 EP22802116.8A EP22802116A EP4453664B1 EP 4453664 B1 EP4453664 B1 EP 4453664B1 EP 22802116 A EP22802116 A EP 22802116A EP 4453664 B1 EP4453664 B1 EP 4453664B1
Authority
EP
European Patent Office
Prior art keywords
correction
display member
wheel
time
local time
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
EP22802116.8A
Other languages
English (en)
French (fr)
Other versions
EP4453664A1 (de
Inventor
Jean-Daniel FARINE
Laurent CALAME
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.)
Manufacture dHorlogerie Audemars Piguet SA
Original Assignee
Manufacture dHorlogerie Audemars Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manufacture dHorlogerie Audemars Piguet SA filed Critical Manufacture dHorlogerie Audemars Piguet SA
Publication of EP4453664A1 publication Critical patent/EP4453664A1/de
Application granted granted Critical
Publication of EP4453664B1 publication Critical patent/EP4453664B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/221—Arrangements for indicating different local apparent times; Universal time pieces mechanisms for correcting the hours hand only, i.e. independently for minutes and seconds 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
    • G04B13/00—Gearwork
    • G04B13/007—Gearwork with differential work
    • G04B13/008—Differentials
    • 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
    • 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
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/226—Arrangements for indicating different local apparent times; Universal time pieces three-dimensionally shaped, e.g. terrestrial globes, cylinders and the like

Definitions

  • the present invention relates to a timepiece comprising a driving member, at least a first display member arranged to display a local time HT, a second display member arranged to be able to display a GMT time of a time zone different from that of the local time HT, a drive wheel set of the first display member arranged to be kinematically connected to the driving member in a disengageable manner, a first correction mechanism arranged to be able to be kinematically connected to the drive wheel set to allow the simultaneous correction of the local time HT and the GMT time, a second correction mechanism of the second display member, separate from the first correction mechanism, and arranged to be able to correct the GMT time independently of the local time HT, a drive mechanism of the second display member comprising a differential gear comprising at least a first input arranged to be kinematically connected to the drive wheel set of the first display member, a second input arranged to be kinematically linked to the second correction mechanism of the second display member, and an output arranged to drive said
  • Such a timepiece is for example described in the document EP 3252543 or in the document EP 2663902 .
  • the simultaneous correction of local time HT and GMT time is carried out by means of the time-setting stem, i.e. the traditional winding stem, and the correction of GMT time independently of local time HT is carried out by means of a pusher.
  • the time-setting stem i.e. the traditional winding stem
  • the correction of GMT time independently of local time HT is carried out by means of a pusher.
  • These different corrections are made possible by the use of a differential gear whose output is arranged to drive the second GMT time display organ.
  • the use of such a differential gear due to the guides and gear ratios of its various components, causes a certain amount of play in the GMT time display train as well as in the GMT time correction train. This play is even more present in the case of bidirectional correction.
  • the present invention aims to remedy these drawbacks by proposing a timepiece making it possible to correct the HT time and/or the GMT time with a reduction in the play in the gears displaying the GMT time and correcting the GMT time, allowing a correction, in particular bidirectional, without risk of desynchronization of the GMT time display organ.
  • Another objective of the present invention is to propose a timepiece making it possible to correct the HT time display organ without risk of desynchronization of the GMT time display organ.
  • the invention relates to a timepiece comprising a driving member, at least a first display member arranged to display a local time HT, a second display member arranged to be able to display a GMT time of a time zone different from that of the local time HT, a drive wheel of the first display member arranged to be kinematically linked to the driving member in a disengageable manner, a first correction mechanism arranged to be able to be kinematically linked to the drive wheel of the first display member to allow the simultaneous correction of the local time HT and GMT time, a second correction mechanism for the second display member, separate from the first correction mechanism, and arranged to be able to correct GMT time independently of local time HT, a drive mechanism for the second display member comprising a differential gear comprising at least a first input arranged to be kinematically linked to the drive wheel of the first display member, a second input arranged to be kinematically linked to the second correction mechanism of the second display member, and an output arranged to drive
  • said timepiece comprises a gear train mounted in parallel to the drive mechanism of the second display member and arranged to be kinematically connected to the drive wheel of the first display member and to be kinematically connected to the output of the differential gear in a disengageable manner by means of a first star connected to said gear train mounted in parallel and a first jumper connected to the output of the differential gear and cooperating with said first star in such a way that said output is driven by said gear train mounted in parallel during a simultaneous correction of the local time HT and the GMT time by the first correction mechanism and that said output is uncoupled from said gear train mounted in parallel during a correction of the GMT time independently of the local time HT by the second correction mechanism while allowing, after correction, a repositioning of the second display member synchronized with the positioning of the first display member.
  • the parallel-mounted gear train connected to the output of the differential gear train by means of a star/jumper system advantageously reduces the play in the GMT time display and GMT time correction gear trains and ensures correct repositioning of the GMT time display member after correction.
  • the positioning of the GMT time display member remains permanently synchronized with the positioning of the HT time display member, relative to the minutes, even after simultaneous correction of the HT local time and GMT time or correction of GMT time alone.
  • the timepiece comprises a third local time correction mechanism HT distinct from the first and second correction mechanisms and arranged to be able to cooperate with the first local time display member HT in order to be able to drive only said first local time display member HT, step by step, during a correction of the local time HT.
  • a third local time correction mechanism HT distinct from the first and second correction mechanisms and arranged to be able to cooperate with the first local time display member HT in order to be able to drive only said first local time display member HT, step by step, during a correction of the local time HT.
  • the positioning of the GMT time display organ remains synchronized with the positioning of the local HT time and minute display organ, even after a correction of the local HT time alone, the minutes remaining fixed during this correction.
  • FIG. 1 schematically represents a timepiece 1 according to the invention, comprising a driving member 2, such as a barrel, kinematically linked to a regulating member 4, such as a sprung balance. It is obvious that any other suitable driving member and regulating member can be used.
  • the timepiece 1 also comprises at least one first display member 6, such as a hand, arranged to display a local time HT, in cooperation with a minute display member (not shown).
  • the timepiece 1 also comprises a second display member 8, such as a hand, arranged to be able to display a GMT time of a time zone different from that of the local time HT.
  • a second display member 8 such as a hand
  • the timepiece also comprises a drive wheel 10 of the first display member 6 arranged to be kinematically linked to the motor member 2 in a disengageable manner.
  • the drive wheel 10 comprises an hour wheel or cannon wheel 12 arranged to drive the first display member 6 of the local time HT.
  • the hour wheel 12 is carried in a known manner by the cannon pinion 14 which integrally carries the minute display member (such as a hand, not shown), and which is kinematically linked to the driving member 2 in a disengageable manner, for example by means of a friction 16.
  • the cannon pinion 14 is driven via the driving member 2 and in turn drives the hour wheel 12.
  • the cannon pinion 14 is arranged to cooperate with the minute wheel 18 and the hour wheel 12 is arranged to cooperate with the minute pinion 20, integral with the minute wheel 18, in a conventional manner.
  • the drive wheel 10 also comprises a drive pinion 21, integral with the hour wheel 12, and kinematically linked to a first input of a differential gear 22 which will be described in more detail below.
  • the timepiece 1 also comprises a first correction mechanism 23 arranged to be able to be kinematically linked to the drive wheel 10 of the first display member 6 of the local time HT to allow the simultaneous correction of the local time HT and the GMT time, preferably in a bidirectional manner.
  • the hour wheel 12 is arranged to cooperate with the first correction mechanism 23.
  • the first correction mechanism 23 advantageously comprises a time-setting stem 24 arranged to be able to drive, preferably bidirectionally, the drive wheel 10 of the first display member 6 during the simultaneous correction of the local time HT and the GMT time.
  • the time-setting stem 24 is the winding stem arranged to be able to occupy different successive distinct axial positions, and in particular a time setting position allowing the simultaneous correction of the local time HT and the GMT time.
  • a sliding pinion 26 slidably mounted on the stem 24 to be able to mesh with a first intermediate wheel 28, mounted freely in rotation on the frame of the part, when the time setting stem 24 is in its time setting position.
  • Other intermediate wheels 30 are provided between the first intermediate wheel 28 and the minute wheel 18 to drive the cannon pinion 14 and the hour wheel 12 via the minute pinion 20 to carry out the time setting by rotation of the stem 24.
  • This correction/time setting mechanism is known to those skilled in the art and does not require a more detailed description.
  • the rotation, preferably bidirectional, of the rod 24 causes the movement, preferably bidirectional, of the minute display member and the first display member 6 of the local time HT, but also the movement, preferably bidirectional, of the second display member 8 of the GMT time, as will be described below, for the simultaneous time setting/correction of the local time HT and the GMT time.
  • winding stem 24 can be replaced by any other suitable correction stem.
  • the timepiece 1 also comprises a second correction mechanism 32 of the second display member 8, distinct from the first correction mechanism, and arranged to be able to correct the GMT time independently of the local time HT.
  • the second correction mechanism 32 will be described in more detail below.
  • the timepiece 1 also comprises a drive mechanism 34 of the second display member 8 comprising the differential gear 22.
  • said differential gear 22 comprises a first sun wheel 38 constituting the first input arranged to be kinematically linked to the drive wheel 10 of the first display member 6 of the local time HT by means of its external toothing which meshes with the drive pinion 21.
  • the first sun wheel 38 is mounted free to rotate on an axis 40 pivotally mounted on the frame of the part and which constitutes the output of the differential gear 22, arranged to drive the second display member 8.
  • the axis 40 can directly carry said second display member 8 in a fixed manner or can comprise a return arranged to cooperate with said second display member 8.
  • the axle 40 integrally carries a sun gear 42.
  • the differential gear 22 also comprises a second planet wheel 44 constituting the second input arranged to be kinematically linked to the second correction mechanism 32 of the second display member 8.
  • the planet wheel 44 is mounted to rotate freely coaxially with the axis 40 and the sun wheel 38. It carries at least one planet pinion 46, here two planet pinions 46 arranged symmetrically with respect to the axis 40 and mounted to rotate freely on the planet wheel 44. Each planet pinion 46 is arranged to mesh both with the internal teeth of the sun wheel 38 and with the sun pinion 42.
  • the arrangement of the differential gear 22 allows, by the first input, the driving, by the motor member 2, of the first display member 6 of the local time HT, with the display member of the minutes, and of the second display member 8 of the GMT time, as well as the simultaneous correction by the first correction mechanism 23 of the first display member 6 of the local time HT, with the display member of the minutes, and of the second display member 8 of the GMT time, and by the second input, the correction of the second member 8 of the GMT time independently of the first display member 6 of the local time HT.
  • the timepiece 1 comprises a gear train 48 mounted in parallel to the drive mechanism 34 of the second display member 8 and arranged to be kinematically connected to the drive wheel set 10 of the first display member 6 and to be kinematically connected to the output of the differential gear 22 in a disengageable manner by means of a first star 50 connected to said parallel-mounted gear train 48 and a first jumper 52 connected to the output of the differential gear 22 and cooperating with said first star 50 so as to that said output is driven by said parallel-mounted gear train 48 during a simultaneous correction of the local time HT and the GMT time by the first correction mechanism 23 and that said output is uncoupled from said parallel-mounted gear train 48, in order to allow the disengagement of said output, during a correction of the GMT time independently of the local time HT by the second correction mechanism 32, while allowing, after one or other of the corrections, a repositioning of the second display member 8 synchronized with the positioning of the first display member 6.
  • the parallel-mounted gear 48 comprises an additional wheel 54 mounted to rotate freely coaxially with the axis 40 of the differential gear 22, as shown by the figure 4
  • the additional wheel 54 has a barrel 54a in which the axle 40 rotates, ensuring better maintenance of said axle.
  • the additional wheel 54 is arranged to be kinematically connected to the drive wheel 10 of the first display member 6, and more particularly to the hour wheel 12 which is arranged to cooperate with said parallel-mounted gear train 48.
  • a return wheel 56 is provided consisting of two stepped pinions 56a, 56b, integral with one another, the pinion 56a being arranged to cooperate with the hour wheel 12 of the drive wheel 10 and the pinion 56b being arranged to cooperate with the additional wheel 54 of the parallel-mounted gear train 48, as shown in Figure 5 .
  • the additional wheel 54 carries, in a fixed manner, the first star 50.
  • the first jumper 52 it is mounted on board a board 58 coaxial with the additional wheel 54 and fixed to the axis 40 constituting the output of the differential gear 22. More particularly, the first jumper 52 comprises a first end 52a pivotally mounted on the board 58, its pivot axis being mounted fixedly on the board 58, said first end 52a cooperating with the first star 50, and a second end 52b mounted fixedly on said board 58, as shown by the figure 6 , in which the additional wheel is not shown.
  • the parallel-mounted gear train 48 is arranged to be able to drive the output of the differential gear 22 at the same speed as the first input of the differential gear 22 drives said output, when said gear train 48 and the output are coupled or engaged by the star 50/jumper 52 connection, that is to say during the driving by the motor member 2 of the first display member 6 of the local time HT and the second display member 8 of the GMT time as well as during the simultaneous correction by the first correction mechanism 23 of the first display member 6 of the local time HT and the second display member 8 of the GMT time.
  • the second correction mechanism 32 comprises in particular a correction gear train 60 cooperating with the planet carrier wheel 44 constituting the second input of the differential gear 22.
  • said correction gear train is arranged to allow a correction preferably by steps of the second display member 8 of the GMT time, independently of the local time HT, that is to say independently of the first display member 6 of the local time HT and of the minute display member.
  • the timepiece comprises a first display device 61 arranged to display locations linked to the different time zones.
  • said first location display device 61 is of the roller display device type arranged to display cities representative of the different time zones.
  • said first location display device 61 comprises a main drum 62 carrying between its two cheeks 62a, 62b, eight triangular prismatic elements 63 mounted free to rotate around their respective longitudinal axes. On each of their three faces of each element 63 is registers a location corresponding to a time zone in order to be able to display, with the set of eight elements 63, the 24 time zones.
  • Each prismatic element 63 carries at one end a toothed wheel 63a arranged to cooperate with a fixed finger (not shown) so as to advance each element 63 by 1/3 of a turn for one rotation of the main drum 62.
  • Three rotations of the main drum 63 are therefore necessary to display the 24 cities corresponding to the 24 time zones. The cities are distributed on the different faces of the elements 63 so that they are displayed in the order of the time zones.
  • the first display device 61 is provided on the kinematic chain between the second correction mechanism 32 and the planet wheel 44 constituting the second input of the differential gear 22 to allow a correction of the location displayed by the first display device 61 during a correction of the second display member 8 of the GMT time linked to said location by means of the second correction mechanism 32, independently of the local time HT.
  • the second correction mechanism 32 is arranged to perform a correction in steps.
  • the second correction mechanism 32 comprises for example two correctors such as pushers (not shown) arranged to be actuated by a user in order to actuate respectively in one direction or another a two-arm control 64 cooperating with an eight-pointed star 66, mounted integrally on one of the ends of the shaft 67 of the main drum 62.
  • the control 64 is arranged to advance the star 66 by one step in one direction or another, depending on the corrector used.
  • the star 66 advances by 1/8 of a turn driving the main drum 63 by 1/8 of a turn to display a face of the next element 63, while the element 63 which passes in front of the fixed finger advances by 1/3 of a turn. The correction is continued until the face of element 63 corresponding to the selected city appears.
  • the correction gear 60 of the second correction mechanism 32 comprises a first wheel 68 secured to the shaft 67 of the main drum 62, a second wheel 70 meshing on the one hand with the first wheel 68 and on the other hand with various 72 gears mounted on the frame, the last of which meshes with the planet wheel 44.
  • the pusher could be replaced by a correction rod arranged to have a preferably controlled rotation angle in order to control the rotation angle of the planet wheel 44 and therefore of the second display member 8 during its correction alone.
  • the bidirectional correction obtained with two correctors to actuate the control 64 advantageously makes it possible to correct the location and the second display member 8 in one direction or another.
  • the fixed dial 75 can be graduated, not from 0 to 24, but from 0 to -12 on one side of the 0 indicated by the fixed indicator 76 and from 0 to +12 on the other side of the 0, making it possible to directly indicate to the user the time difference from 0h to 12h in one direction or the other by means of the third display member 78.
  • the second display device 74 is provided on the kinematic chain between the second correction mechanism 32 and the planet wheel 44 constituting the second input of the differential gear 22 to allow a correction of the difference between the local time HT and the GMT time displayed by the third display member 78, during a correction of the second display member 8 of the GMT time by means of the second correction mechanism 32, independently of the local time HT.
  • the third display member 78 is kinematically linked to the second correction mechanism 32 and to the second input of the differential gear 22.
  • the second correction mechanism 32 comprises a control arranged to rotate the third display member 78 in one direction or another depending on the time difference to be displayed, and a correction gear train kinematically linking the third display member 78 to the second input of the differential gear 22, said correction gear train comprising a first wheel meshing with the third display member 78 and a last wheel meshing with the planet carrier wheel 44, like the correction gear train 60.
  • the first location display device 61 or the second time difference display device 74 may not be present.
  • the second correction mechanism 32 is arranged so that the cooperation between the corrector and the planet wheel 44 is done solely via the correction gear train 60.
  • the timepiece 1 comprises a third correction mechanism 90 of the first display member 6 of the local time HT distinct from the first and second correction mechanisms and arranged to be able to cooperate with said first display member 6 of the local time HT in order to be able drive only said first display member 6 of the local time HT during a correction of the local time HT, that is to say without the minute display member, the first display member 6 then being uncoupled from the rest of the drive wheel set 10 and the drive mechanism 34 of the second display member 8 of the GMT time.
  • a third correction mechanism 90 of the first display member 6 of the local time HT distinct from the first and second correction mechanisms and arranged to be able to cooperate with said first display member 6 of the local time HT in order to be able drive only said first display member 6 of the local time HT during a correction of the local time HT, that is to say without the minute display member, the first display member 6 then being uncoupled from the rest of the drive wheel set 10 and the drive mechanism 34 of the second display member 8 of the GMT time.
  • the third correction mechanism 90 is arranged to carry out a step-by-step correction of the first display member 6 alone, in order to guarantee, after its correction, a synchronized repositioning with the minute display member and with the second display member 8.
  • the third correction mechanism 90 of the first display member 6 comprises a saw-toothed correction wheel 92 mounted to rotate on the barrel of the hour wheel 12 and integrally carrying the first display member 6.
  • the correction wheel 92 is connected to the hour wheel 12 in a disengageable manner.
  • the third correction mechanism 90 of the first display member 6 also comprises a correcting finger 94, actuable by a user, and arranged to actuate the correction wheel 92 by disengaging it from the rest of the drive wheel set 10, so as to drive only the first display member 6 for a correction by steps, independently of the minute display member and the second display member 8.
  • the drive pinion 21 secured to the hour wheel 12 is also driven and in turn drives the sun wheel 38 of the differential gear 22.
  • the planet wheel 44 being blocked by the first location display device 61, the star 66 being held by its jumper 69, the planet pinions 46 constitute simple return gears.
  • the sun wheel 38 meshes with the planet pinions 46 which mesh with the sun pinion 42 so as to drive the axle 40, the rotation of the axle 40 causing the rotation of the second display member 8 to display the GMT time, without driving the main drum 62.
  • the hour wheel 12 meshes with the pinion 56a, and therefore the pinion 56b of the intermediate wheel 56, said pinion 56b meshing with the additional wheel 54 of the parallel-mounted gear train 48.
  • the latter is coupled to the axle 40 via the star 50/jumper 52 assembly so that the axle 40 is also driven by the additional wheel 54, at the same speed as the drive speed via the sun wheel 38.
  • the parallel-mounted gear train 48 makes it possible to reduce the play due to the differential gear 22 solely to the play linked to said parallel-mounted gear train 48.
  • the play of such a gear train simply comprising the intermediate wheel 56 linked to the additional wheel 54, is much less than the play linked to the differential gear 22.
  • the holding of the axle 40 is reinforced due to the connection to the additional wheel 54 via the star 50/jumper 52 assembly.
  • the drive pinion 21 secured to the hour wheel 12 meshes with the sun wheel 38 of the differential gear 22 and in parallel the hour wheel 12 meshes with the parallel-mounted gear train 48 so as to drive the rotation of the axis 40 and therefore the rotation of the second display member 8 for its correction, without driving the main drum 62.
  • the play generated by the parallel-mounted gear train 48 is much less than the play generated by the differential gear 22.
  • the use of the stem 24 allows a bidirectional correction of the HT time and the GMT time.
  • the position of the second display member 8 of the GMT time remains perfectly synchronized with the position of the first display member 6 of the local time HT relative to the position of the minute display member, the play of the gear train mounted in parallel which comes into account between the local time HT and the GMT time being greatly reduced.
  • the user When correcting the GMT time and the location, when the first location display device 61 is present, the user actuates one of the correctors of the second correction mechanism 32 by successive pressures in order to actuate the main drum 62 and its elements 63 until the desired location is displayed.
  • the correction gear train 60 is driven so as to drive the planet wheel 44 of the differential gear 22. Due to the differential gear used, it is considered that the sun wheel 38 is stationary relative to the correction speed, so that the satellite pinions 46, carried by the planet wheel 44, on the one hand slide on the internal teeth of the sun wheel 38 and on the other hand drive the axis 40, and therefore the second display member 8, by meshing with the sun pinion 42. It is also considered that the additional wheel 54 is stationary relative to the correction speed, so that the axis 40 disconnects from the additional wheel 54, the jumper 52 no longer cooperating with the star 50, and skipping a tooth of the star 50.
  • the elements 63 of the main drum 62 and the second GMT time display member are corrected simultaneously, independently of the first local time HT display member 6 and the minute display member, due to the differential gear 22, the star 50/jumper 52 assembly linked to the axis 40 of said differential gear 22 allowing said axis 40 to reposition itself precisely relative to the position of the first display member 6 after each correction of the second GMT time display member 8, the jumper 52 jumping a tooth of the star 50 to reposition itself precisely between the following teeth, so that the position of said second GMT time display member 8 remains perfectly synchronized with the position of the first local time HT display member 6 relative to the position of the minute display member.
  • step corrector makes it possible to precisely control the rotation angles of the various gears when correcting the GMT time and the location so as to increase the precision of the repositioning of the axis 40 and therefore of the second display member 8 of the GMT time after its correction.
  • the user actuates the second correction mechanism 32 in order to move the third display member 78 until the desired time difference is displayed on the dial 75.
  • the correction gear of the second correction mechanism 32 is driven so as to drive the planet wheel 44 of the differential gear 22, driving the axis 40, and therefore the second time display member GMT 8.
  • the third display member 78 and the second time display member GMT 8 are corrected simultaneously, independently of the first local time display member 6 HT and the minute display member, due to the differential gear 22, the star 50/jumper 52 assembly linked to the axis 40 of said gear differential 22 allowing the axis 40 to reposition itself precisely relative to the position of the first display member 6 after each correction of the third display member 78 of the difference between the local time HT and the GMT time and of the second display member 8 of the GMT time.
  • the user When correcting the first display member 6 of the HT time alone, for example during a first adjustment after purchasing the watch or when changing from summer time to winter time (which can be done on different dates depending on the time zones), the user actuates the correcting finger 94 so as to disconnect the correction wheel 92 from the rest of the drive wheel set 10, the jumper 98 no longer cooperating with the star 96.
  • the step-by-step correction of the correction wheel 92 secured to the first display member 6 makes it possible to advance only said first display member 6 in steps of 1 hour, without driving the minute display member, nor the second display member 8 of the GMT time.
  • the position of the first display member 6 of the local time HT remains perfectly synchronized with the position of the second display member 8 of the time GMT relative to the position of the minute display member.
  • the timepiece according to the invention allows simultaneous correction of the locations and the GMT time without correcting the local time HT, the simultaneous and bidirectional time setting or correction of the local time HT and the GMT time without correcting the displayed location, and the correction of the display member 6 of the local time HT only, making it possible, after one or other of these corrections, to guarantee a positioning of the second GMT time display member permanently synchronized with the positioning of the first display member HT relative to the position of the minute display member.

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  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Claims (16)

  1. Uhr (1) umfassend ein Antriebsorgan (2), mindestens ein erstes Anzeigeorgan (6), das ausgelegt ist, um eine Ortszeit HT anzuzeigen, ein zweites Anzeigeorgan (8), das ausgelegt ist, um eine GMT-Zeit einer anderen Zeitzone als der Ortszeit HT anzeigen zu können, ein Antriebsdrehteil (10) des ersten Anzeigeorgans (6), das ausgelegt ist, um kinematisch mit dem Antriebsorgan (2) entkoppelbar verbunden zu werden, einen ersten Korrekturmechanismus (23), der ausgelegt ist, um kinematisch mit dem Antriebsdrehteil (10) des ersten Anzeigeorgans (6) verbunden werden zu können, um die gleichzeitige Korrektur der Ortszeit HT und der GMT-Zeit zu ermöglichen, einen zweiten Korrekturmechanismus (32) des zweiten Anzeigeorgans (8), der vom ersten Korrekturmechanismus (23) verschieden ist und ausgelegt ist, um die GMT-Zeit unabhängig von der Ortszeit HT korrigieren zu können, einen Antriebsmechanismus (34) des zweiten Anzeigeorgans (8) umfassend ein Differenzialgetriebe (22) mit mindestens einem ersten Eingang, der ausgelegt ist, um kinematisch mit dem Antriebsdrehteil (10) des ersten Anzeigeorgans (6) verbunden zu werden, einem zweiten Eingang, der ausgelegt ist, um kinematisch mit dem zweiten Korrekturmechanismus (32) des zweiten Anzeigeorgans (8) verbunden zu werden, und einem Ausgang, der ausgelegt ist, um das besagte zweite Anzeigeorgan (8) anzutreiben, dadurch gekennzeichnet, dass sie ein Räderwerk (48) umfasst, das parallel zum Antriebsmechanismus (34) des zweiten Anzeigeorgans (8) angeordnet ist und ausgelegt ist, um kinematisch mit dem Antriebsdrehteil (10) des ersten Anzeigeorgans (6) und um kinematisch mit dem Ausgang des Differenzialgetriebes (22) entkoppelbar verbunden zu werden, mittels eines ersten Sterns (50), der mit dem besagten parallel angeordneten Räderwerk (48) verbunden ist, und einer ersten Raste (52), die mit dem Ausgang des Differenzialgetriebes (22) verbunden ist und mit dem besagten ersten Stern (50) so zusammenwirkt, dass der besagte Ausgang, bei einer gleichzeitigen Korrektur der Ortszeit HT und der GMT-Zeit durch den ersten Korrekturmechanismus (23), durch das besagte parallel angeordnete Räderwerk (48) angetrieben wird, und dass der besagte Ausgang bei einer Korrektur der GMT-Zeit unabhängig von der Ortszeit HT durch den zweiten Korrekturmechanismus (32) von dem besagten parallel angeordneten Räderwerk (48) entkoppelt wird und, nach der Korrektur, eine Neupositionierung des zweiten Anzeigeorgans (8) synchron zur Positionierung des ersten Anzeigeorgans (6) ermöglicht.
  2. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass das besagte parallel angeordnete Räderwerk (48) ein zusätzliches Rad (54) umfasst, das frei drehbar koaxial zum Differenzialgetriebe (22) angebracht und ausgelegt ist, um kinematisch mit dem Antriebsdrehteil (10) des ersten Anzeigeorgans (6) verbunden zu werden, wobei das besagte zusätzliche Rad (54) den besagten ersten Stern (50) trägt, und die besagte erste Raste (52) ausgelegt ist, um das besagte zusätzliche Rad (54) mit dem Ausgang des Differenzialgetriebes (22) so zu verbinden, dass der besagte Ausgang bei einer Korrektur der GMT-Zeit unabhängig von der Ortszeit HT durch den zweiten Korrekturmechanismus (32) von dem besagten zusätzlichen Rad (54) entkoppelt wird.
  3. Uhr nach Anspruch 2, dadurch gekennzeichnet, dass die besagte erste Raste (52) ein erstes Ende (52a) umfasst, das drehbar auf einer Platte (58) angebracht ist, die koaxial zum zusätzlichen Rad (54) und fest verbunden mit dem Ausgang des Differenzialgetriebes (22) ist, wobei das besagte erste Ende (52a) mit dem ersten Stern (50) zusammenwirkt, und ein zweites Ende (52b) umfasst, das mit der besagten Platte (58) fest verbunden ist.
  4. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das besagte parallel angeordnete Räderwerk (48) ausgelegt ist, um den Ausgang des Differenzialgetriebes (22), wenn sie gekoppelt werden, mit derselben Geschwindigkeit antreiben zu können, mit der der erste Eingang des Differenzialgetriebes (22) den besagten Ausgang antreibt.
  5. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Antriebsdrehteil (10) des ersten Anzeigeorgans (6) ein Stundenrad (12) umfasst, das ausgelegt ist, um kinematisch mit dem Antriebsorgan (2) entkoppelbar verbunden zu werden und um das erste Anzeigeorgan (6) anzutreiben, wobei das besagte Stundenrad (12) ausgelegt ist, um einerseits mit dem ersten Korrekturmechanismus (23) und andererseits mit dem parallel angeordneten Räderwerk (48) zusammenzuwirken, und ein Antriebsritzel (21), das kinematisch mit dem ersten Eingang des Differenzialgetriebes (22) verbunden ist.
  6. Uhr nach den Ansprüchen 2 und 5, dadurch gekennzeichnet, dass sie ein Zeigerstellrad (56) umfasst, das ausgelegt ist, um einerseits mit dem Stundenrad (12) des Antriebsdrehteils (10) des ersten Anzeigeorgans (6) und andererseits mit dem zusätzlichen Rad (54) des parallel angeordneten Räderwerks (48) zusammenzuwirken.
  7. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Differenzialgetriebe (22) ein erstes Sonnenrad (38) umfasst, das den ersten Eingang bildet, auf einer Achse (40) frei drehbar angebracht ist, den Ausgang des Differenzialgetriebes (22) bildet, ein Sonnenritzel (42) trägt, sowie ein zweites Planetenradträgerrad (44), das den zweiten Eingang bildet, mindestens ein Planetenritzel (46) trägt, das gleichzeitig in das erste Sonnenrad (38) und in das Sonnenritzel (42) eingreift.
  8. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der erste Korrekturmechanismus (23) eine Zeigerstellwelle (24) umfasst, die ausgelegt ist, um das Antriebsdrehteil (10) des ersten Anzeigeorgans (6) bei der gleichzeitigen Korrektur der Ortszeit HT und der GMT-Zeit bidirektional antreiben zu können.
  9. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der zweite Korrekturmechanismus (32) ein Korrekturräderwerk (60) umfasst, das mit dem zweiten Eingang des Differenzialgetriebes (22) zusammenwirkt und ausgelegt ist, um eine schrittweise Korrektur des zweiten Anzeigeorgans (8) unabhängig von der Ortszeit HT zu ermöglichen.
  10. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie eine erste Anzeigevorrichtung (61) umfasst, die ausgelegt ist, um mit den verschiedenen Zeitzonen verbundene Orte anzuzeigen, wobei die besagte erste Anzeigevorrichtung (61) von Orten auf der kinematischen Kette zwischen dem zweiten Korrekturmechanismus (32) und dem zweiten Eingang des Differenzialgetriebes (22) vorgesehen ist, um eine Korrektur des angezeigten Ortes bei einer Korrektur des zweiten Anzeigeorgans (8) der mit dem besagten Ort verbundenen GMT-Zeit, unabhängig von der Ortszeit HT, durch den zweiten Korrekturmechanismus (32) zu ermöglichen.
  11. Uhr nach Anspruch 10, dadurch gekennzeichnet, dass die erste Anzeigevorrichtung von Orten (61) eine Anzeigevorrichtung mit Rollen ist, die ausgelegt ist, um Städte anzuzeigen.
  12. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie eine zweite Anzeigevorrichtung (74) umfasst, die ausgelegt ist, um die Differenz zwischen der Ortszeit HT und der GMT-Zeit anzuzeigen, wobei die besagte zweite Anzeigevorrichtung auf der kinematischen Kette zwischen dem zweiten Korrekturmechanismus (32) und dem zweiten Eingang des Differenzialgetriebes (22) vorgesehen ist, um eine Korrektur der Differenz zwischen der Ortszeit HT und der angezeigten GMT-Zeit bei einer Korrektur des zweiten Anzeigeorgans (8) der GMT-Zeit, unabhängig von der Ortszeit HT, durch den zweiten Korrekturmechanismus (32) zu ermöglichen.
  13. Uhr nach Anspruch 12, dadurch gekennzeichnet, dass die zweite Anzeigevorrichtung (74) ein Zifferblatt (75), eine fest auf dem Zifferblatt (75) angebrachte und zur Festlegung der Ortszeit HT als Referenzzeit ausgelegte Anzeige (76) und ein in Bezug auf das besagte Zifferblatt (75) drehbeweglich angebrachtes drittes Anzeigeorgan (78) umfasst, wobei die Position des dritten Anzeigeorgans (78) auf dem Zifferblatt (75) in Bezug auf die Anzeige (76) die Differenz zwischen der Ortszeit HT und der GMT-Zeit anzeigt, das besagte dritte Anzeigeorgan (78) kinematisch mit dem zweiten Korrekturmechanismus (32) und mit dem zweiten Eingang des Differenzialgetriebes (22) verbunden ist.
  14. Uhr nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie einen dritten Korrekturmechanismus (90) des ersten Anzeigeorgans (6) umfasst, der von dem ersten und zweiten Korrekturmechanismus (23, 32) verschieden ist und ausgelegt ist, um mit dem besagten ersten Anzeigeorgan (6) der Ortszeit HT zusammenwirken zu können, um bei einer Korrektur der Ortszeit HT nur das besagte erste Anzeigeorgan (6) der Ortszeit HT antreiben zu können.
  15. Uhr nach den Ansprüchen 5 und 14, dadurch gekennzeichnet, dass der dritte Korrekturmechanismus (90) des ersten Anzeigeorgans (6) ein Korrekturrad (92) umfasst, das mit dem ersten Anzeigeorgan (6) fest verbunden und mit dem Stundenrad (12) entkoppelbar verbunden ist, und einen Korrekturfinger (94), der ausgelegt ist, um das besagte Korrekturrad (92) zu betätigen, indem es so entkoppelt wird, dass nur das erste Anzeigeorgan (6) für eine schrittweise Korrektur angetrieben wird.
  16. Uhr nach Anspruch 15, dadurch gekennzeichnet, dass das Stundenrad (12) einen zweiten Stern (96) trägt und dadurch, dass das Korrekturrad (92) eine zweite Raste (98) trägt, die mit dem besagten zweiten Stern (96) zusammenwirkt und ausgelegt ist, um das Stundenrad (12) mit dem besagten Korrekturrad (92) so zu verbinden, dass bei einer Korrektur des ersten Anzeigeorgans (6) der Ortszeit HT durch den Korrekturfinger (94) das besagte Korrekturrad (92) von dem besagten Stundenrad (12) entkoppelt wird.
EP22802116.8A 2021-12-21 2022-10-14 Uhr, die ein anzeigeorgan für eine ortszeit ht (home time) und ein anzeigeorgan für eine gmt-zeit (greenwich mean time) umfasst Active EP4453664B1 (de)

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EP21216391.9A EP4202568A1 (de) 2021-12-21 2021-12-21 Uhr, die ein anzeigeorgan für eine ortszeit ht (home time) und ein anzeigeorgan für eine gmt-zeit (greenwich mean time) umfasst
PCT/EP2022/078745 WO2023117175A1 (fr) 2021-12-21 2022-10-14 Piece d'horlogerie comprenant un organe d'affichage d'une heure locale ht et un organe d'affichage d'une heure gmt

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EP4453664B1 true EP4453664B1 (de) 2025-08-27

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EP22802116.8A Active EP4453664B1 (de) 2021-12-21 2022-10-14 Uhr, die ein anzeigeorgan für eine ortszeit ht (home time) und ein anzeigeorgan für eine gmt-zeit (greenwich mean time) umfasst

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CH665930GA3 (en) * 1986-07-30 1988-06-30 Wrist watch with supplementary hour hands for different zones - selects hands by rotation of subsidiary 24-hour dials, not driven by movement, performing differential hand rotation
DE102005010604B3 (de) * 2005-03-06 2006-07-20 Lange Uhren Gmbh Uhr
CH704331B1 (fr) 2011-01-13 2015-05-15 Gfpi S A Pièce d'horlogerie.
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