EP3264198B1 - Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce - Google Patents

Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce Download PDF

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Publication number
EP3264198B1
EP3264198B1 EP16177616.6A EP16177616A EP3264198B1 EP 3264198 B1 EP3264198 B1 EP 3264198B1 EP 16177616 A EP16177616 A EP 16177616A EP 3264198 B1 EP3264198 B1 EP 3264198B1
Authority
EP
European Patent Office
Prior art keywords
magnetic
switching member
rotation
control member
switching
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
EP16177616.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3264198A1 (fr
Inventor
Davide Sarchi
Benoît LEGERET
Deirdré LENOIR
Jean-Philippe Rochat
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.)
Montres Breguet SA
Original Assignee
Montres Breguet 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 Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP16177616.6A priority Critical patent/EP3264198B1/fr
Priority to US15/634,319 priority patent/US10078310B2/en
Priority to JP2017125946A priority patent/JP6464229B2/ja
Priority to CN201710523321.3A priority patent/CN107561908B/zh
Publication of EP3264198A1 publication Critical patent/EP3264198A1/fr
Priority to HK18107287.7A priority patent/HK1247999A1/zh
Application granted granted Critical
Publication of EP3264198B1 publication Critical patent/EP3264198B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by master-clocks
    • G04C13/02—Circuit arrangements; Electric clock installations
    • G04C13/04—Master-clocks
    • G04C13/0409—Master-clocks monitoring or controlling master-clock or system with more than one master-clock, e.g. for switching-over to standby motor or power system
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • G04B11/005—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with magnetic elements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0842—Watches or clocks with stop devices, e.g. chronograph with start-stop control mechanisms

Definitions

  • the present invention relates to a device for switching a clock mechanism between two functional states.
  • the switching device is of the bistable type. It is arranged so that said at least part of the switching member is capable of passing on command from a first stable axial position to a second stable axial position, to generate a first switching of the clock mechanism between its first state and its second state, and from the second stable axial position to the first stable axial position to generate a second switching of the clock mechanism between its second state and its first state.
  • the clock mechanism can have several different functions for which the switching device defines a bistable switch, alternately enabling or disabling the function or alternately engaging and disengaging this function.
  • a bistable vertical clutch device described in the document EP 2,015,145 meets the definition of the device given in the field of the invention.
  • This device is designed to alternately start and stop a chronograph mechanism. To this end, it includes a switching mechanism comprising a clutch wheel permanently coupled to an output wheel, a clutch cone associated with a control member, a spring exerting an axial force between the first wheel and a plate forming a stop, a central tube for securing the plate with the assembly formed by the clutch wheel and the clutch cone, and finally a seal allowing friction coupling of said assembly with an input wheel.
  • the switching mechanism is actuated axially (i.e. perpendicular to the respective planes of the input wheel and the output wheel) by a control mechanism which includes a clamp with two fingers, carrying at their free ends respective parts each having an oblique surface for pressing laterally on the clutch cone (which in fact defines a clutch clutch cone), and a column wheel which is driven step by step in a plurality of angular positions by means an actuating device, in particular a pusher which can be actuated by the user of the timepiece.
  • This column wheel activates, in collaboration with a leaf spring, the clamp so as to alternately lift the assembly formed by the clutch wheel and the clutch cone against the axial force of the spring to disengage the mechanism.
  • the vertical clutch device of the document EP 2,015,145 is relatively complex. First, it requires a spring incorporated in the switching mechanism. Then, it is bulky in the general plane of the movement and has a fairly large height due to the superposition of several elements, in particular the clutch cone, the spring and the stop plate. Finally, the control mechanism is not easy to manufacture and then to assemble in the watch movement.
  • the invention proposes to provide a switching device, in particular a bistable clutch device, of a new type relative to that of the prior art described above to respond in particular to the drawbacks of this prior art.
  • the switching member can switch alternately between its two stable axial positions by virtue of a magnetic force generated alternately in the two directions of the axial direction by the two magnetic structures, respectively forming the control member. and the switching member, when the control member is driven step by step successively in a plurality of predefined angular positions.
  • the switching member comprises an axial guide arranged so as to allow axial translation in both directions of this switching member during actuation in rotation of the control member and to prevent this switching member from being rotated during such an actuation.
  • the switching device forms a clutch-disengaging device.
  • the switching member carries a clutch element arranged free to rotate at least in one axial position, among the first and second stable axial positions, corresponding to a engaged state of the switching device and therefore of the associated clock mechanism, the element clutch being integral with the switching member in axial translation.
  • FIG. 1 a first embodiment of a timepiece according to the invention.
  • This timepiece 2 is partially shown in the figures which essentially show a switching device 4 for this timepiece as well as a pinion 6 and a wheel 8 of a timepiece mechanism which can functionally be in a first state where the pinion and the wheel are not mechanically coupled and a second state where this pinion and this wheel are mechanically coupled by a clutch wheel 10 associated with the switching device.
  • the clutch wheel comprises a central shaft 26 and is arranged free to rotate at least in one of its first and second stable axial positions which corresponds to a engaged state of the switching device, this clutch wheel being integral with the member. switching in axial translation.
  • the switching device here defines a vertical clutch-declutching device because the switching member 12, carrying the clutch wheel, undergoes with the latter a vertical translational movement in both directions, that is to say perpendicular to the general plane 18 of the base 14 on which the control member 16 is mounted and parallel to the respective axes of rotation of the pinion 6 and the wheel 8.
  • the switching device 4 is arranged to be able to switch the clock mechanism between its first and second states. To this end, it comprises the control member 16, which extends in a general plane 18 in which it is liable to undergo pivoting (rotation about itself) under the action of an actuating device ( partially represented at the Figure 3 ), and the switching member 12 arranged so as to be able to undergo a translational movement substantially in an orthogonal direction in general 18.
  • the control member can be driven in rotation about its central axis of rotation 36, step by step in a direction of rotation given successively in a plurality of distinct angular positions which are predetermined.
  • the control member comprises a star 20 associated with a jumper 22 which successively stabilizes the control member in the angular positions of the plurality of distinct angular positions.
  • the star is rotated successively in said angular positions by an actuating device comprising a lever or finger 24 acting successively on the branches of the star, which comprises a number of branches equal to the number of these angular positions. This number is equal to eight in the variant described.
  • the lever or finger can be actuated in various ways either by a user or by another mechanism of the timepiece. In particular, it can be actuated by a pusher arranged in a watch case.
  • the switching member is capable of passing on command from a first stable axial position to a second stable axial position, to generate a first switching of the timepiece mechanism between its first state, shown to the Figure 1 , and its second state, and from the second stable axial position to the first stable axial position to generate a second switching of the clock mechanism between its second state and its first state.
  • the control member and the switching member respectively comprise a first magnetic structure 32 and a second magnetic structure 34 having a magnetic interaction between them.
  • one of the first and second magnetic structures comprises at least a first magnetic pole and the other of these two magnetic structures comprises at least a second magnetic pole and a third magnetic pole with opposite polarities.
  • the first and second magnetic structures are arranged so that, in a first angular position of the control member among the plurality of its distinct angular positions, the first magnetic pole mainly presents a first magnetic interaction with one of the second and third magnetic poles and that, in a second angular position of this control member among the plurality of distinct angular positions, this first magnetic pole mainly presents a second magnetic interaction with the other of these second and third magnetic poles.
  • the first and second magnetic interactions generate on the switching member respectively a first magnetic force and a second magnetic force, both oriented along the axis of rotation 36 of the control member with opposite directions, which makes it possible to move this switching member from its first stable axial position to its second stable axial position and vice versa.
  • the first and second magnetic structures are arranged so that the switching member undergoes an alternating movement between its first and second stable axial positions when the second magnetic structure, integral with the control member, is rotated not -in step in said given direction of rotation, which thus makes it possible to generate, on command, switches of the clock mechanism between its first and second states.
  • the rotary control member is arranged to perform steps each corresponding to a pivoting angle ⁇ / N, with N> 0, so that the first magnetic structure 32 is caused to successively occupy 2N distinct angular positions around the axis of rotation 36.
  • one of the first and second magnetic structures comprises N first active magnetic poles, substantially axially oriented and when N> 1 regularly distributed around the axis of rotation 36, while the other of these two magnetic structures comprises N second active magnetic poles and N third active magnetic poles substantially axially oriented and regularly distributed around the axis of rotation and substantially the same distance from this axis of rotation as the first magnetic poles.
  • the second and third magnetic poles are arranged alternately so that each second magnetic pole is interposed between two third magnetic poles.
  • the N first magnetic poles are located substantially opposite the N second magnetic poles or the N third magnetic poles.
  • active magnetic pole is understood a magnetic pole participating in the magnetic interaction provided in the magnetic system generating axial translations in both directions of the switching member.
  • the magnetic structure comprising the N first active magnetic poles further comprises N fourth active magnetic poles of opposite polarity to those of the N first active magnetic poles, the first and fourth magnetic poles being regularly distributed around the axis of rotation 36 and arranged alternately so that each fourth magnetic pole is interposed between two first magnetic poles.
  • the first and second magnetic structures are similar and have materially planar symmetry between them in the various stable angular positions of the control member (depending on the stable angular position of the control member, the polarities of the active poles in screw opposite can be either opposite or identical).
  • each of the first and second magnetic structures comprises 2N bipolar magnets 42, 44 respectively oriented axially and regularly distributed around the axis of rotation 36, these bipolar magnets being magnetically alternately oriented in one direction and in the other (this is that is, the magnetic axes of two adjacent bipolar magnets have meanings opposite).
  • this magnetic structure then comprises N axially oriented bipolar magnets, with their respective magnetic axes having the same direction, and distributed regularly around the axis of rotation.
  • At least the magnetic structure carrying the second and third magnetic poles is constituted by a multipolar magnet comprising 2N active poles which are alternated and oriented axially. It will be noted that the other magnetic structure can also be constituted by a multipolar magnet with its poles oriented axially, in particular when it also has 2N alternating active poles.
  • the switching member comprises an axial guide arranged so as to allow an axial translation in both directions of this switching member when the control member is actuated in rotation and to prevent this switching member from being driven in rotation during such actuation.
  • the switching member 12 is guided in axial translation (along the axis of rotation 36) by at least one first column 46 located at the periphery of the control member and sliding in an opening of the base 14.
  • a second column 48 is also provided here for axial guidance, the first and second columns advantageously being diametrically opposite relative to the axis of rotation, as shown in Figures 1 and 3 .
  • control member 16 is arranged so as to be able to pivot, as already explained, but not to be able to undergo substantially axial translation.
  • control member has a part having an outer side wall which is circular, this part being arranged in a circular recess of the base 14 which has an axial stop for this part in a first direction oriented towards the magnetic structure. 34 of the switching member. Then the controller is pivoted in a plate 50 which also forms an axial stop for this control member, in a second direction opposite to the first direction.
  • a bearing with a pierced stone and a counter-pivot stone the latter being positioned in height so that the pivot presses against it while a certain slot remains between the body of the control member and the upper surface of the plate.
  • the switching member 12 when the control member 16 is driven step by step in the plurality of distinct and stable angular positions (2N positions), the switching member 12 is subjected to an axial magnetic force alternately in both directions of the direction defined by the axis of rotation 36.
  • the magnetic force is a magnetic force of attraction and the switching member is then attracted to the control member.
  • the magnetic force is a magnetic repelling force and the switching member is then pushed back from the control member.
  • the timepiece further comprises at least a first stop 52 and at least a second stop 54 arranged to define respectively two stable axial positions of the member. switching, this switching member being in abutment against one or the other of these first and second stops respectively in its two stable axial positions under the action of the magnetic force generated between the first and second magnetic structures.
  • the two stable axial positions of the switching member respectively define a disengaging position and a clutch position in which the mechanism associated watchmaker is respectively in a disengaged state and a engaged state.
  • the clutch wheel 10 is engaged with the pinion 6 in the clutch position of the switching member, while in its disengaged position, this clutch wheel is no longer in engagement with the pinion (no more meshing relationship between them).
  • the stop 54 is adjustable in height. In the variant shown, this stop is formed by at least one screw in a threaded hole in the bridge 30.
  • means are provided for substantially securing the clutch wheel to the switching member in the axial direction, so that this wheel follows the axial translational movement of this switching member.
  • two curved fingers 56 and 58 projecting from the plate of the switching member form therewith two C-shaped elements around the teeth 10A of the clutch wheel.
  • this clutch wheel has a very limited axial travel in both directions relative to the switching member.
  • means are provided to allow optimum rotation of the clutch wheel in the clutch position of the switching member.
  • the shaft 26 of this wheel has a pivot 60 arranged in a lower bearing 62.
  • the upper bearing comprises a kitten 64 in which are inserted the pierced stone 28 and a counter-pivot stone 66 at a certain distance from the pierced stone, this distance being provided so as not to impede the sliding of the shaft 26 through the pierced stone when the member switch is pushed into its clutch position by a magnetic repelling force.
  • the teeth of the pinion 6 are shown to be cylindrical in a variant with teeth oriented axially
  • the teeth of the clutch wheel 10, of the pinion 6 and of the wheel 8 can advantageously be conical in a first variant and planar, in the form of a ring, in a second variant.
  • the teeth can be of the Breguet type, either sawtooth ensuring reliable drive in a given direction of rotation, or in the form of an isosceles triangle allowing drive in both directions of rotation of the clutch wheel. .
  • such rotational guiding can be done by elements acting on circular lateral surfaces of the clutch wheel, whether at its teeth, with a lower pivot in a lower bearing (c 'that is to say on the side of the magnetic structure 34) or of an annular part intermediate between the plate comprising the coupling teeth (or possibly a friction joint) and a lower pivot.
  • the pivoting can be achieved by a device of the 'ball bearing' type also ensuring an axial connection (that is to say during axial translations) of the clutch wheel with the switching member.
  • the clutch wheel is provided in the figures for coupling two mobiles in the engaged state of the mechanism in question, it is also possible that the clutch wheel carries an indicator or a cam which is actuated depending on whether the clutch wheel is engaged or not with a movable input element as a function of the angular position of the control member.
  • guiding in rotation only on the lower side of the clutch wheel as well as an axial connection can be achieved by a lower magnetic bearing of the type described in the variant presented below.
  • Timepiece 72 differs from timepiece 2 firstly by the arrangement, in the switching device 4A, of a lower magnetic bearing 74 instead of a traditional bearing with pierced stone and counter-pivot .
  • This magnetic bearing comprises a magnet 76 mounted in the plate of the switching member 12A and surmounted by a ferromagnetic element 78 for central conduction of the magnetic flux of this magnet so as to center the shaft 26A of the wheel.
  • clutch 10A, this shaft also being at least partially made of ferromagnetic material so that the magnetic bearing is functional.
  • the arrangement of such a magnetic bearing has various advantages.
  • the attraction force generated by the magnetic bearing on the shaft of the clutch wheel makes it possible to secure this wheel with the switching member 12A without having to resort to mechanical means as in the variant of the Figure 1 .
  • the magnetic bearing is arranged in the switching member to pivot one end of this shaft, this magnetic bearing further ensuring an axial movement of the clutch wheel synchronous with the switching member in the two meaning.
  • limiting the axial translation of the switching member 12A in the configuration where the magnetic structures 32 and 34 have a repelling force between them, and the stable axial clutch position for this switching member (in the example considered) are obtained by two screws 80 (only one may suffice) freely passing through corresponding holes in the plate of the switching member and screwed into two threaded holes provided in the base 14.
  • the two screws 80 serve also to define the axial guidance of the switching member and the two columns 46 and 48 are eliminated.
  • the switching member is simply formed by a plate carrying bipolar magnets.
  • the Figure 5 shows in section a second embodiment of the invention. Again, the elements already described previously will not be described again in detail.
  • the timepiece 82 according to this second embodiment is remarkable in that the switching device 4B comprises a bridge 30B which is integral with the switching member 12B, so that they form together with the wheel.
  • clutch 10B a clutch unit 84 which can undergo an axial movement in one direction and then in the other direction when the control member 16 is driven step by step in two of its stable angular positions which follow one another.
  • This clutch unit is robust and easy to assemble.
  • the shaft 26B of the clutch wheel 10B is conventionally pivoted in two standard bearings 88 and 90 with a usual play which remains invariable during the operation of the clutch device according to this second embodiment.
  • the bridge 30B is fixed to the switching member by a screw 86 screwed into a threaded hole in this switching member, this hole advantageously being coaxial with a column 48 for axially guiding the clutch unit.
  • a screw 86 screwed into a threaded hole in this switching member, this hole advantageously being coaxial with a column 48 for axially guiding the clutch unit.
  • means for positioning the bridge 30B can advantageously be provided, in particular two positioning pins or foot-screws for fixing the bridge.
  • the bridge is therefore fixedly mounted on the switching member so as to allow them to accommodate at least a central part of a clutch element, this bridge comprising a bearing in which is arranged one end of the shaft of this clutch element.
  • a column has been omitted relative to the first embodiment, the axial guiding of the switching member being carried out by the screw 80 and the column 48.
  • the screw 80 thus has a second function here.
  • the Figure 6 shows a third embodiment of a timepiece 92 according to the invention. Again, only the differences with the previous embodiments will be exposed. Note that the operation of the magnetic system of the switching device 4C remains identical to that described above and will therefore not be explained here.
  • This third embodiment is distinguished mainly from the first embodiment by the fact that the switching member 12C is guided axially by a central column 94 freely passing through a cylindrical hole 96 of the control member 16C and extends into a hole non-circular 97 of a plate 50C on which the control member is mounted.
  • a plate 14C, defining with the plate a housing for this control member, is fixed to the plate by two screws 98.
  • the column 94 has on at least one lower part 95, sliding in the non-circular hole 97, a non-circular section corresponding to the profile of this non-circular hole, so as to prevent rotation of the switching member, in particular during the rotation drive of the control member 16C to move the switching member between its two axial positions stable, as already explained above.
  • the non-circular section portion 95 is configured so as to allow an axial translation of the switching member between its two stable axial positions.
  • This third embodiment is advantageous because the switching device 4C is less bulky than the two previous embodiments.
  • the actuation of the star 20 can be done by a lever or a sliding element through a lateral opening provided in the plate 50C. It will be noted that projecting parts 52C of the switching member 12C, defining the axial disengagement position of this switching member, come to bear against the upper surface of the base 14C forming a stop.
  • the second embodiment can be advantageously implemented in a timepiece according to the third embodiment.
  • control member can be actuated by a user via an actuation device such as a button.
  • actuation devices known to those skilled in the art can be envisaged.
  • these actuation mechanisms can be actuated automatically and in particular periodically by another mechanism of the timepiece, that is to say by a mechanism for actuating this timepiece. watchmaking which cooperates with the switched mechanism according to the invention.
  • the invention can be applied to mechanical watch movements and also to timepieces having electromechanical parts.
  • the actuating device of the control member can comprise an electromechanical motor.
  • switching devices with a switching member formed by a shuttle undergoing generally back and forth movements along a vertical axis
  • switching devices with a switching member formed by a member pivoting about a horizontal axis that is to say in the general plane of the member control and therefore orthogonal to its axis of rotation.
  • this pivoting element is a lever or a rocker part of which, on one side of its pivot axis, carries the second magnetic structure.
  • the pivoting element is arranged so that the second magnetic structure, formed in particular by a bipolar magnet, undergoes a movement along an arc of a circle whose vertical dimension is greater than its horizontal dimension.
  • the part carrying the second magnetic structure undergoes, according to the present invention, a translation in both directions between two stable axial positions when the control member is driven step by step in rotation in its distinct angular positions.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
EP16177616.6A 2016-07-01 2016-07-01 Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce Active EP3264198B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16177616.6A EP3264198B1 (fr) 2016-07-01 2016-07-01 Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce
US15/634,319 US10078310B2 (en) 2016-07-01 2017-06-27 Timepiece comprising a device for switching a mechanism of said timepiece
JP2017125946A JP6464229B2 (ja) 2016-07-01 2017-06-28 時計の機構を切り替える装置を備える時計
CN201710523321.3A CN107561908B (zh) 2016-07-01 2017-06-30 包括用于切换钟表机构的装置的钟表
HK18107287.7A HK1247999A1 (zh) 2016-07-01 2018-06-04 包括用於切換鐘錶機構的裝置的鐘錶

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16177616.6A EP3264198B1 (fr) 2016-07-01 2016-07-01 Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce

Publications (2)

Publication Number Publication Date
EP3264198A1 EP3264198A1 (fr) 2018-01-03
EP3264198B1 true EP3264198B1 (fr) 2020-01-15

Family

ID=56321827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16177616.6A Active EP3264198B1 (fr) 2016-07-01 2016-07-01 Pièce d'horlogerie comprenant un dispositif de commutation d'un mécanisme de cette pièce

Country Status (5)

Country Link
US (1) US10078310B2 (ja)
EP (1) EP3264198B1 (ja)
JP (1) JP6464229B2 (ja)
CN (1) CN107561908B (ja)
HK (1) HK1247999A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3264199A1 (fr) * 2016-07-01 2018-01-03 Montres Breguet S.A. Piece d'horlogerie comprenant un dispositif de commutation d'un mecanisme horloger
EP3627233B1 (fr) * 2018-09-19 2022-03-30 ETA SA Manufacture Horlogère Suisse Mecanisme indicateur de reserve de marche d'horlogerie
EP3869278B1 (fr) 2020-02-21 2023-03-08 Montres Breguet S.A. Dispositif d'embrayage vertical pour piece d'horlogerie

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
FR1090564A (fr) * 1953-09-17 1955-03-31 Hatot Leon Ets Perfectionnements apportés aux mécanismes horaires et aux appareils analogues
US2893257A (en) * 1956-03-01 1959-07-07 Collins Radio Co Magnetic backlash eliminator
FR1276734A (fr) * 1960-10-12 1961-11-24 Système de liaison et transmissions motrices magnétiques et applications à l'horlogerie mécanique et électrique
DE1244665B (de) * 1962-11-03 1967-07-13 United States Time Corp Zeigerwerksantrieb
CH526804A (fr) * 1969-10-27 1972-04-14 Omega Brandt & Freres Sa Louis Pièce d'horlogerie
JPS5025188Y1 (ja) * 1970-12-28 1975-07-29
US3969888A (en) * 1972-12-11 1976-07-20 Cyril Veuilleumier Driving mechanism for day-date calendar device
JPS5474570U (ja) * 1977-11-04 1979-05-26
CH646568GA3 (en) * 1982-10-22 1984-12-14 Dial train with a device for adjusting clock hands in whole time units
EP2015145B1 (fr) 2007-06-11 2013-05-01 Chopard Manufacture SA Dispositif d'embrayage vertical pour pièce d'horlogerie
EP3001259A1 (fr) * 2014-09-26 2016-03-30 ETA SA Manufacture Horlogère Suisse Dispositif régulateur de la marche d'un mouvement horloger mécanique

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
JP6464229B2 (ja) 2019-02-06
US10078310B2 (en) 2018-09-18
EP3264198A1 (fr) 2018-01-03
HK1247999A1 (zh) 2018-10-05
JP2018004636A (ja) 2018-01-11
US20180004165A1 (en) 2018-01-04
CN107561908A (zh) 2018-01-09
CN107561908B (zh) 2019-11-12

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