EP3764170A1 - Uhr-anzeigemechanismus mit elastischem zeiger - Google Patents

Uhr-anzeigemechanismus mit elastischem zeiger Download PDF

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Publication number
EP3764170A1
EP3764170A1 EP20176720.9A EP20176720A EP3764170A1 EP 3764170 A1 EP3764170 A1 EP 3764170A1 EP 20176720 A EP20176720 A EP 20176720A EP 3764170 A1 EP3764170 A1 EP 3764170A1
Authority
EP
European Patent Office
Prior art keywords
barrel
satellite
display mechanism
carriageway
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.)
Granted
Application number
EP20176720.9A
Other languages
English (en)
French (fr)
Other versions
EP3764170B1 (de
Inventor
M. Marc STRANCZL
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
Publication of EP3764170A1 publication Critical patent/EP3764170A1/de
Priority to US17/168,504 priority Critical patent/US11841685B2/en
Priority to JP2021025950A priority patent/JP7212087B2/ja
Priority to CN202110583787.9A priority patent/CN113741164B/zh
Application granted granted Critical
Publication of EP3764170B1 publication Critical patent/EP3764170B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • 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
    • G04B13/001—Gearwork with the choice of adjustable or varying transmission ratio
    • 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
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/048—Hands; Discs with a single mark or the like having the possibility of indicating on more than one scale, e.g. hands with variable length which work on different scales
    • 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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0038—Figures or parts thereof moved by the clockwork
    • G04B45/0061—Moving parts of the clockwork, e.g. pendulum, hands in special form, mostly constructed as a figure
    • 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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding
    • G04B9/005—Supervision of the state of winding, e.g. indicating the amount of winding by optical indication of the amount of winding
    • 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
    • G04B13/02—Wheels; Pinions; Spindles; Pivots

Definitions

  • the invention relates to a variable geometry clock display mechanism, comprising at least one resilient hand which comprises a first drive barrel integral with a first end of a flexible blade, and a second integral drive barrel. of another end of said flexible blade, and including a display index which in an unstressed free state of said elastic needle in which both said first barrel and said second barrel are unstressed and are spaced apart from each other is distant from said first barrel and from said second barrel, the service position of said elastic needle being a constrained position where said first barrel and said second barrel are coaxial with each other around an output axis, said display mechanism comprising first means for driving said first barrel about said output axis, and second means for driving said second barrel about said axis output, said first drive means and second drive means being arranged to deform said flexible blade, by varying the angular position of said second barrel relative to the angular position of said first barrel around said output axis, and to make varying the radial position of said display index relative to said output axis.
  • the invention relates to a timepiece movement comprising at least one such display mechanism.
  • the invention relates to a watch comprising at least one such movement, and / or at least one such display mechanism.
  • the invention relates to the field of clockwork display mechanisms, and more particularly for complicated timepieces, the invention can be used both for static timepieces such as clocks or clocks, as well as for watches, due to the small dimensions of the mechanism according to the invention.
  • dials of many timepieces are not circular, and it is advantageous to have solutions that make it possible to occupy the entire available surface, for an even better visualization.
  • variable geometry display mechanism makes it possible to break up a certain monotony of displays, and to make the display more lively, with different aspects depending on the time of day, or according to particular time periods.
  • an AM / PM display may be provided simply by the shape of a needle, which has a first aspect during the twelve o'clock in the morning, and a second aspect during the remainder. of the day ; it is also possible to distinguish day / night displays, time zone displays, or the like.
  • the invention proposes to further simplify such a mechanism and to make it even more compact and economical to produce.
  • the invention also proposes to prevent any bracing in this display mechanism with an elastic needle, by avoiding pushing a mobile, and by favoring mobile mounted dragging.
  • variable geometry clock display mechanism relates to a variable geometry clock display mechanism, according to claim 1.
  • the invention relates to a timepiece movement comprising at least one such display mechanism.
  • the invention relates to a watch comprising at least one such movement, and / or at least one such display mechanism.
  • EP3605244 incorporated here by reference, relating to a variable geometry clock display mechanism with elastic hand, discloses a first actuation mechanism by means of mobiles with shaped teeth. Such an embodiment allows the execution of very innovative displays in horology, and is however expensive, and reserved for luxury parts.
  • the same application also describes a second case of an actuation mechanism by means of a first differential on the cog of the first barrel and a second differential on the cog of the second barrel, and at least one cam constituting an input of such differential. Therefore, it is necessary to find and size a suitable planetary gear (differential). Planetary gears have the advantage of achieving high transmission ratios in a small footprint.
  • the input and output shafts are in the extension of one another.
  • it is a question of controlling one of the inputs of the differential, so as to generate an advance and respectively a delay of a specific equivalent value on each of the ends of the needle. And, when this value is zero, it is necessary to obtain a transmission ratio of 1 (the positive value means that the direction must also be the same).
  • the invention proposes to further simplify the mechanism and to make it even more compact and economical to produce.
  • a small caliber such as a lady's watch
  • the main difficulty is linked to the low torque available. It is therefore necessary to create a mechanism with the lowest possible energy consumption.
  • the invention proposes to control the satellite.
  • a feeler in the satellite, and by controlling the latter by a round cam, we obtain a speed ratio equal to one between the sun wheel and the supporting frame of the satellites: the assembly then behaves like a mobile.
  • the invention proposes to avoid any arching phenomenon and avoiding the use of a mobile, in particular a satellite, pushed, and by favoring the use of trailing mobiles.
  • a particular actuation of the needle consists in taking a differential planet gear carrier plate as a reference, so as to make each needle barrel work symmetrically.
  • the figures 8 and 9 illustrate the angle of rotation to be imposed on guns 2 and 4 of needle 1.
  • hand 1 indicates noon: line A illustrates the position of the differential plate, which in this non-limiting example rotates at a rate of 1 revolution per hour, and lines B and C indicate the positions of the arms of hand 1 .
  • hand 1 indicates four o'clock, line A on the differential points to the mark at four o'clock on the dial, and each arm B, C, with respect to the planet carrier, has a symmetrical advance and retreat of the same angle ⁇ .
  • variable geometry clock display mechanism 10 comprising at least one elastic hand 1.
  • This elastic needle which comprises a first drive barrel 2 integral with a first end of a flexible blade 3, and a second drive barrel 4 integral with another end of the flexible blade 3.
  • This flexible strip 3 can be a continuous strip, or even a strip comprising a succession of segments 5 joined two by two at the vertices 6, as visible on the figures 5 and 6 .
  • This flexible blade 3 comprises a display index which, in an unstressed free state of the elastic needle 1 in which both the first barrel 2 and the second barrel 4 are not subjected to any constraint and are distant from each other. on the other, is distant from the first barrel 2 and from the second barrel 4, the service position of the elastic needle 1 being a constrained position where the first barrel 2 and the second barrel 4 are coaxial with each other around an output axis D.
  • the display index is advantageously, but not necessarily, constituted by a vertex 6.
  • the display mechanism 10 comprises first means for driving the first barrel 2 around the output axis D, and second means for driving the second barrel 4 around the output axis D.
  • first gun 2 and the second gun 4 are not coaxial are not described here, they remain feasible for certain special displays, in particular displays which are not of revolution, such as retrograde displays or the like.
  • the first drive means and the second drive means are arranged to deform the flexible blade 3, by varying the angular position of the second barrel 4 with respect to the angular position of the first barrel 2 around the output axis D, and to vary the radial position of the display index relative to the output axis D.
  • the display mechanism 10 comprises a differential type mechanism comprising an input frame 180 mounted to rotate freely about the output axis D.
  • This input frame 180 comprises a first pivot 183 and a second pivot 181 carrying respectively a reference 103 and a single satellite 101 meshing with each other by their teeth 1039, 1019.
  • This satellite 101 comprises an eccentric finger 1010, which is arranged to travel a track 105 of a fixed cam 104, and which is biased against this track 105 by the elasticity of the elastic needle 1 itself.
  • This input frame 180 comprises an input toothing 182 and / or a drive pinion, and a shaft 185 which carries, coaxial along the output axis D, a first carriageway 1020 comprising the first barrel 2 and a second carriageway 1040 comprising the second barrel 4, of which the teeth 1049 of one mesh with the teeth 1039 of the gearbox 103, and the teeth 1029 of the other mesh with the teeth 1019 of the satellite 101.
  • the track 105 is an internal track.
  • the invention simplifies the construction by the use of a single cam which feels the information of the angular delta ⁇ to be applied.
  • This information is transmitted directly to a first roadway 1020.
  • a second roadway 1040 receives this information via a reference 103 which reverses the direction of the angular delta ⁇ to be applied, as visible on the figures 2 and 3 : a single satellite 101, carried by the planet carrier plate 180, probes, on a single cam track 105 which comprises a flange 104 constituting the cam, a single angular delta ⁇ to be applied to the two guns 2 and 4 of the needle 1.
  • the satellite 101 applies the rotation directly to the first carriageway 1020 carrying the first gun 2.
  • the satellite 101 transmits the rotation via the return 103 to the second carriageway 1040 carrying the second gun 4, in order to reverse the direction of rotation.
  • the satellite 101 carries a finger 1010 which feels the cam track 105.
  • the satellite carrier plate 180 here comprises a candle 185 for guiding the roadways 1040 and indirectly 1020, and an external toothing 182 driven by the clockwork movement, and pivots 181 and 183 for guiding the satellite 101 and the return 103.
  • the toothing 1019 of the satellite 101 meshes, on the one hand with the toothing 1029 of the first carriageway 1020, and on the other hand with the toothing 1039 of the transmission 103, which meshes with the toothing 1049 of the second carriageway 1040.
  • the figure 3 shows that this mechanism is extremely compact, with a low thickness which allows it to be housed in a small watch case.
  • the number of components is reduced, and none presents any particular complexity of production, the cost of the assembly is therefore moderate.
  • the invention also relates to a timepiece movement 900 comprising at least one such display mechanism 10.
  • the invention also relates to a watch 1000 comprising at least one such movement 900, and / or at least one such display mechanism 10.
  • the invention makes it possible to generate the advance and / or the delay on the two barrels of the elastic needle, making it possible to generate complex trajectories, all in a very simple, compact way that does not consume much torque. and therefore of great reliability.
  • This construction with a single satellite and a single cam has many advantages.
  • the additional board is very simple.
  • the single satellite is mounted trailing, and cannot butt in a clockwise direction. Energy consumption is low due to reduced friction.
  • the loss of amplitude at the resonator is very low.
  • the mechanism has few components, is not very bulky, and its assembly is easy.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Geometry (AREA)
  • Electromechanical Clocks (AREA)
  • Transmission Devices (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP20176720.9A 2018-07-31 2020-05-27 Uhr-anzeigemechanismus mit elastischem zeiger Active EP3764170B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US17/168,504 US11841685B2 (en) 2018-07-31 2021-02-05 Horological display mechanism with elastic hand
JP2021025950A JP7212087B2 (ja) 2018-07-31 2021-02-22 弾性針を有する時計表示機構
CN202110583787.9A CN113741164B (zh) 2018-07-31 2021-05-27 具有弹性指针的钟表显示机构

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18186552.8A EP3605243A1 (de) 2018-07-31 2018-07-31 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19185917.2A EP3605244B1 (de) 2018-07-31 2019-07-12 Uhr-anzeigemechanismus mit elastischem zeiger
PCT/EP2019/069968 WO2020025428A1 (fr) 2018-07-31 2019-07-24 Aiguille elastique d'horlogerie

Publications (2)

Publication Number Publication Date
EP3764170A1 true EP3764170A1 (de) 2021-01-13
EP3764170B1 EP3764170B1 (de) 2022-03-16

Family

ID=63108490

Family Applications (7)

Application Number Title Priority Date Filing Date
EP18186552.8A Withdrawn EP3605243A1 (de) 2018-07-31 2018-07-31 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19185917.2A Active EP3605244B1 (de) 2018-07-31 2019-07-12 Uhr-anzeigemechanismus mit elastischem zeiger
EP19742225.6A Active EP3765920B1 (de) 2018-07-31 2019-07-24 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19742224.9A Active EP3765919B1 (de) 2018-07-31 2019-07-24 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19744698.2A Active EP3830649B1 (de) 2018-07-31 2019-07-24 Elastischer zeiger für uhren
EP20176726.6A Active EP3764168B1 (de) 2018-07-31 2020-05-27 Uhr-anzeigemechanismus mit elastischem zeiger
EP20176720.9A Active EP3764170B1 (de) 2018-07-31 2020-05-27 Uhr-anzeigemechanismus mit elastischem zeiger

Family Applications Before (6)

Application Number Title Priority Date Filing Date
EP18186552.8A Withdrawn EP3605243A1 (de) 2018-07-31 2018-07-31 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19185917.2A Active EP3605244B1 (de) 2018-07-31 2019-07-12 Uhr-anzeigemechanismus mit elastischem zeiger
EP19742225.6A Active EP3765920B1 (de) 2018-07-31 2019-07-24 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19742224.9A Active EP3765919B1 (de) 2018-07-31 2019-07-24 Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP19744698.2A Active EP3830649B1 (de) 2018-07-31 2019-07-24 Elastischer zeiger für uhren
EP20176726.6A Active EP3764168B1 (de) 2018-07-31 2020-05-27 Uhr-anzeigemechanismus mit elastischem zeiger

Country Status (5)

Country Link
US (6) US11886147B2 (de)
EP (7) EP3605243A1 (de)
JP (6) JP6977179B2 (de)
CN (6) CN111902779B (de)
WO (3) WO2020025423A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4300213A1 (de) 2022-06-27 2024-01-03 Montres Breguet S.A. Mechanismus zur betätigung eines flexiblen anzeigezeigers, der durch ein uhrwerk bewegt wird

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3605243A1 (de) 2018-07-31 2020-02-05 Montres Breguet S.A. Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger
EP4276544A1 (de) 2022-05-11 2023-11-15 Montres Breguet S.A. Uhrmechanismus zum betätigen eines flexiblen zeigers
DE202023102554U1 (de) 2022-05-17 2023-06-14 Montres Breguet S.A. Flexibler Zeiger und Betätigungsmechanismus eines solchen Zeigers
WO2024052467A1 (fr) * 2022-09-08 2024-03-14 Montres Breguet S.A. Mécanisme d'actionnement pour une aiguille d'affichage flexible mû par un mouvement d'horlogerie

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EP3605243A1 (de) 2018-07-31 2020-02-05 Montres Breguet S.A. Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger

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CN112213934B (zh) 2021-11-19
EP3605244B1 (de) 2021-04-21
EP3765919B1 (de) 2024-02-28
CN111902779B (zh) 2022-02-25
JP7050168B2 (ja) 2022-04-07
US11860577B2 (en) 2024-01-02
CN113741164B (zh) 2023-01-10
CN111902778A (zh) 2020-11-06
US11537080B2 (en) 2022-12-27
EP3765919A1 (de) 2021-01-20
US20210223740A1 (en) 2021-07-22
EP3605243A1 (de) 2020-02-05
CN113741163A (zh) 2021-12-03
WO2020025423A1 (fr) 2020-02-06
EP3764168B1 (de) 2022-02-16
US11841685B2 (en) 2023-12-12
EP3764168A1 (de) 2021-01-13
JP6933743B2 (ja) 2021-09-08
CN111684363A (zh) 2020-09-18
EP3830649B1 (de) 2024-03-20
JP2021515226A (ja) 2021-06-17
EP3765920A1 (de) 2021-01-20
JP7050167B2 (ja) 2022-04-07
CN113741164A (zh) 2021-12-03
JP2021189165A (ja) 2021-12-13
JP2021515224A (ja) 2021-06-17
US11774909B2 (en) 2023-10-03
US20210048782A1 (en) 2021-02-18
JP2021015110A (ja) 2021-02-12
CN111684363B (zh) 2022-01-21
EP3830649A1 (de) 2021-06-09
US11886147B2 (en) 2024-01-30
CN111902778B (zh) 2022-02-25
US20210011433A1 (en) 2021-01-14
WO2020025424A1 (fr) 2020-02-06
EP3765920B1 (de) 2021-12-29
JP7181330B2 (ja) 2022-11-30
US20210373497A1 (en) 2021-12-02
JP7212087B2 (ja) 2023-01-24
JP6977179B2 (ja) 2021-12-08
US20210373496A1 (en) 2021-12-02
EP3764170B1 (de) 2022-03-16
WO2020025428A1 (fr) 2020-02-06
CN111902779A (zh) 2020-11-06
US11841684B2 (en) 2023-12-12
JP2021515889A (ja) 2021-06-24
JP2021189163A (ja) 2021-12-13
CN113741163B (zh) 2023-01-13
CN112213934A (zh) 2021-01-12
EP3605244A1 (de) 2020-02-05

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