EP4276545A1 - Anterograder anzeigemechanismus für uhr - Google Patents

Anterograder anzeigemechanismus für uhr Download PDF

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Publication number
EP4276545A1
EP4276545A1 EP22173340.5A EP22173340A EP4276545A1 EP 4276545 A1 EP4276545 A1 EP 4276545A1 EP 22173340 A EP22173340 A EP 22173340A EP 4276545 A1 EP4276545 A1 EP 4276545A1
Authority
EP
European Patent Office
Prior art keywords
wheel
display
angle
anterograde
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.)
Pending
Application number
EP22173340.5A
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English (en)
French (fr)
Inventor
Mehdi Denden
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.)
Blancpain SA
Original Assignee
Blancpain 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 Blancpain SA filed Critical Blancpain SA
Priority to EP22173340.5A priority Critical patent/EP4276545A1/de
Priority to US18/173,942 priority patent/US20230367264A1/en
Priority to JP2023049307A priority patent/JP7472350B2/ja
Priority to CN202310427394.8A priority patent/CN117055320A/zh
Publication of EP4276545A1 publication Critical patent/EP4276545A1/de
Pending legal-status Critical Current

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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
    • G04B19/04—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
    • 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
    • G04B19/06—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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/241—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars the date is indicated by one or more hands

Definitions

  • the field of the invention relates to anterograde, or “anti-retrograde” display mechanisms, that is to say display mechanisms configured to rotate a display member, in the direction of travel, d 'a first angular distance greater than a second angular distance.
  • the invention also relates to a watch movement comprising such an anterograde display mechanism, as well as a timepiece comprising such a watch movement.
  • Anterograde display mechanisms are conventionally used to display information relating to the current time or even information relating to the date.
  • the markings for the current time or date graduation are generally distributed uniformly around a circumference of the dial.
  • the patent CH 699 736 describes an exemplary embodiment of such an anterograde display mechanism applied to a date, the date graduation marks of which are not distributed uniformly over a circumference but are arranged so that the angular distance separating the marks 15 and 16 is greater than the angular distance separating the other marks 1 to 31.
  • an angular sector of the dial of the timepiece without a mark is created in which the date hand does not stop, but makes a jump of a second angle greater than a first angle separating the other marks of the graduation.
  • the anterograde display mechanism described in this patent is based on the use of several toothed sectors and their complex cooperation.
  • the patent document CH 713 209 describes another example of an anterograde display mechanism also applied to a date.
  • the angular distance separating marks 31 and 1 is greater than the angular distance separating the other marks between 1 and 31.
  • the document proposes the use of a snail cam secured to the date wheel carrying the date hand, said date wheel being advanced one step per day by a date actuator.
  • the snail cam cooperates with a lever and a spring to ensure the stable angular position of the cam between marks 1 to 31.
  • the snail cam comprises a toothed portion comprising 30 teeth for the 30 stable positions between marks 1 and 31, and a smooth portion extending in an angular sector corresponding to the angular sector of the dial devoid of graduation (between mark 31 and 1) allowing, under the action of the lever, to rotate the cam and the date wheel by one angle corresponding to the angle between marks 31 to 1.
  • the invention also relates to a clock movement characterized in that it comprises an anterograde display mechanism according to the invention.
  • the invention also relates to a timepiece comprising a timepiece movement setting in motion an anterograde display mechanism according to the invention.
  • the timepiece is a wristwatch.
  • the anterograde display mechanism 100 is intended to be housed in a timepiece, for example in a wristwatch.
  • the anterograde display mechanism 100 is configured to be driven by a clockwork movement (not shown), that is to say by a mechanism whose operation depends on the division of time.
  • the anterograde display mechanism 100 is configured to produce a display by jumping a display member (or indicator), for example a needle, facing a display, for example a dial, having a peripheral graduation formed by a plurality of marks distributed over a circumference of the display, the angular distance separating two of these consecutive marks corresponding to a second angle ⁇ greater than a first angle ⁇ separating two of the other consecutive marks of the graduation.
  • the graduation includes at least two consecutive marks separated by a second angle ⁇ greater than a first angle a.
  • the anterograde display mechanism 100 is configured to produce a display by jumping a display member, for example a disk presenting a plurality of marks, forming a peripheral graduation, distributed over a circumference of the disc, cooperating with an opening in a dial forming a window revealing a portion of the display member.
  • a display member for example a disk presenting a plurality of marks, forming a peripheral graduation, distributed over a circumference of the disc, cooperating with an opening in a dial forming a window revealing a portion of the display member.
  • the anterograde display mechanism 100 is configured to drive the display member by short successive jumps between the marks of the graduation separated by the first angle ⁇ and by a long jump between the two consecutive marks of the graduation separated by the second angle ⁇ .
  • the anterograde display mechanism 100 is applied to a particular example of date display.
  • the anterograde display mechanism according to the invention is also applicable for the display of any information derived from time.
  • the anterograde display mechanism according to the invention can also be an anterograde display mechanism for date, hour, minute, second, or even a chronograph, moon phase, counter, reserve walking, etc.
  • the anterograde display mechanism 100 includes a dial 3 (represented on the figures 3 to 6 ) carrying a plurality of markers forming a date graduation. Dial 3 therefore has 31 marks distributed around the circumference of dial 3.
  • the date graduation includes the odd numbers 1 to 31 distributed over a circumference of the dial 3 as well as indexes located between two odd numbers.
  • the indexes located between odd numbers represent even numbers here. They replace the digits of the graduation in particular for better readability of the display.
  • the angular distance separating the consecutive digits 31 and 1 corresponds to a second angle ⁇ greater than a first angle ⁇ separating the other digits between 1 and 31 of the date graduation.
  • FIG. 1 illustrates a schematic perspective view of the anterograde display mechanism 100 according to the invention making it possible to drive the display member in its angular movements by short successive jumps between the marks separated by an angle ⁇ and by a long jump between the graduation marks separated by an angle ⁇ .
  • FIG 2 schematically illustrates a bottom view of the anterograde display mechanism 100 illustrated in figure 1 .
  • the anterograde display mechanism 100 comprises a first wheel 110, called the driving wheel, driven in rotation directly by the clockwork movement (not shown).
  • the rotation speed of the drive wheel 110 is 1 revolution in 31 days, and the drive wheel is set in motion once a day by the clockwork movement.
  • the driving wheel 110 therefore advances one step per day.
  • the driving wheel 110 has a number of teeth n 1 , here equal to 31 teeth for 31 indexing positions of the driving wheel 110 corresponding to 31 indexed positions of the date display member, opposite -screw the 31 marks of the date graduation on dial 3.
  • Each indexing position of the drive wheel 110 is indexed by a jumper 180 cooperating with the drive wheel 110.
  • the jumper 180 is movable in rotation around a pivot 181 and constrained by an elastic element (not shown) tending to bring back a jumper nozzle 182 towards the axis of rotation of the driving wheel 110, so that the jumper nozzle 182 cooperates with the teeth and the inter-tooth spaces of the drive wheel 110 to guarantee maintenance in the indexing position of the drive wheel 110 between each step.
  • the anterograde display mechanism 100 further comprises a second wheel 120 mounted coaxially with the driving wheel 110.
  • the second wheel 120 has a number of teeth n 2 different from the number of teeth n 1 of the driving wheel 110.
  • the second wheel 120 has a number of teeth n 2 greater than the number of teeth n 1 of the drive wheel 110.
  • the matrix wheel 110 and the second wheel 120 are not united in rotation.
  • the two wheels 110, 120 are linked to each other by an elastic member 160.
  • the elastic member 160 has a first end 161 secured to the driving wheel 110 and a second end 162 secured to the second wheel 120.
  • solidary we mean a mechanical connection of which at least one degree of freedom is blocked.
  • the anterograde display mechanism 100 further comprises a third wheel 130, called the display wheel, which drives the display member making it possible to display the date on a dial 3.
  • the display member can be formed by a date hand 2 mounted on a barrel 132 of the display wheel 130.
  • the display member is a disk integral in rotation with the display wheel 130, the disk having a plurality of marks forming the date graduation, and being configured to cooperate with a opening the dial to reveal a portion of the disc.
  • the drive wheel 110 directly drives an intermediate wheel 150, which directly drives the display wheel 130.
  • the intermediate wheel 150 advantageously makes it possible to produce a return between the drive wheel 110 and the display wheel 130.
  • the display wheel 130 comprises at least one toothed portion and at least one angular sector 131 in which a plurality of teeth are truncated so as to form a “smooth” angular sector without teeth.
  • the smooth angular sector 131 is bordered by a first tooth d1 of the teeth and by a last tooth d30 of the teeth, the display wheel 130 having 30 teeth.
  • the display wheel 130 comprises a single smooth angular sector 131 defining a zone in which at least two teeth are truncated.
  • the display wheel 130 comprises an effective number n 3 eff of teeth distributed over the toothed portion and a truncated number n 3 of teeth truncated on the smooth angular sector 131.
  • n 3 eff of teeth distributed over the toothed portion
  • n 3 of teeth truncated on the smooth angular sector 131 we thus obtain a number n 3 equi corresponding to an equivalence of teeth on the circumference of the wheel.
  • the display wheel 130 can also include several toothed portions and several smooth angular sectors 131, having a more or less significant angular distance, an equal or unequal angular distance, which can be distributed uniformly, or not, over the circumference. of the display wheel 130, depending on needs.
  • Other examples of embodiment will be described subsequently with reference to the figures 7 at 10.
  • the anterograde display mechanism 100 further comprises a fourth wheel 140 coaxial with the display wheel 130 and integral in rotation with the wheel with the display wheel 130.
  • the fourth wheel has a number of teeth n 4 .
  • the fourth wheel 140 meshes directly with a second intermediate wheel 170 which meshes directly with the second wheel 120, so that the second wheel 120 is rotated by the second intermediate wheel 170.
  • the second wheel 120 has a number of teeth n 2 greater than the number of teeth n 1 of the drive wheel 110, so as to have a rotation speed lower than the rotation speed of the drive wheel 110, and thus arm, or progressively load the elastic member 160 during the rotation of the drive wheel 110.
  • the second wheel 120 and the display wheel 130 respectively have a number of teeth n 2 , n 3 equi greater than the number of teeth n 1 of the driving wheel 110.
  • the second wheel 120, the display wheel 130, and the fourth wheel 140 respectively have a number of teeth n 2 , n 3 equi , n 4 greater than the number of teeth n 1 of the driving wheel 110.
  • dial 3 carries the date graduation.
  • the date graduation has 31 marks which are not uniformly distributed around the circumference of dial 3, since the second angle ⁇ between the number 31 and 1 is greater than the first angle ⁇ separating the other numbers between 1 and 31.
  • angle ⁇ is twice as large as angle ⁇ .
  • dial 3 is divided into 32 equidistant divisions, two consecutive divisions of which are separated by the first angle ⁇ .
  • indexable positions P x with x ranging from 1 to 32.
  • the 31 digits forming the markers of the date graduation are distributed at the level of 31 indexable positions of the dial 3, the positions P 1 to P 31 .
  • the indexable position P 32 (fictitious, represented accordingly in dotted lines) does not have a mark and is intended to be directly jumped by the date hand 2 making a long jump of angle ⁇ between the number 31 (indexable position P 31 ) and the number 1 (indexable position P 1 ).
  • the driving wheel 110 has 31 teeth corresponding to the 31 indexed positions of the date hand 2, and therefore 31 marks of the dial 3 of the date graduation.
  • the display wheel 130 is equivalent to a wheel of 32 teeth on which two consecutive teeth are truncated at the level of the smooth angular sector 131.
  • the display wheel 130 therefore has 30 effective teeth n 3 eff .
  • the second wheel 120 will have an angular delay of 1/32° relative to the driving wheel 110 which makes one revolution in 31 days.
  • the difference in relative rotational speed between the driving wheel 110 and the second wheel 120 will gradually load, or arm, the elastic member 160, by elastic deformation, throughout a given period, here 31 days.
  • the elastic member 160 can be a leaf spring, a strip, a flat spring, a spiral spring or any other elastic element conventionally used in the field of watchmaking.
  • the elastic member 160 is integral with the drive wheel 110. Consequently, the first end 161 is integral with the drive wheel 110 and the second end 162 is linked to the second wheel 120.
  • the second end 162 forms a hooking head comprising a pin 163 cooperating with an oblong loop 121 provided on the second wheel 120 to secure in rotation the second end 162 of the elastic member 160 to the second wheel 120.
  • the elastic member is integral with the second wheel 120, so that the second end 162 is integral with the second wheel 120 and the first end 161 is linked to the driving wheel 110.
  • anterograde display mechanism 100 The operation of the anterograde display mechanism 100 according to the invention will be described below with reference to the figures 3 to 6 , representing the operation of the first exemplary embodiment described with reference to the figures 1 to 2 .
  • FIG. 3 illustrates the anterograde display mechanism 100 when the date hand 2 is indexed to the number 1 of the date graduation of the dial 3, corresponding to the indexable position P 1 .
  • the display wheel 130 is driven by the driving wheel 110 for 31 days, at each step of the driving wheel 110.
  • the needle of date 2 is moved angularly once per day by short successive jumps of angle ⁇ .
  • the date hand 2 is therefore indexed day after day at the different marks of the date graduation corresponding to the different divisions, or indexable positions P x , of the dial 3 separated by an angle ⁇ ; that is to say between the numbers 1 and the number 31, until reaching the number 31 of the date graduation of dial 3 (position P 31 ), as illustrated in figure 4 .
  • the gear ratio between the drive wheel 110 and the other wheels 120, 130, 140 of the mechanism generates an angular offset between the drive wheel 110 and the second wheel 120. This offset, increasing with each increment by the driving wheel 110, will gradually load the elastic member 160.
  • the next step of the driving wheel 110 causes the additional rotation of the display wheel 130 until arriving in a position where the smooth angular sector 131 is opposite the intermediate wheel 150, so that the display 130 is no longer engaged with the driving wheel 110, as illustrated in Figure 5 . Since the display wheel 130 is momentarily no longer meshed with the driving wheel 110, the elastic member 160 is free to discharge the energy accumulated over the previous 31 days.
  • the second wheel 120 tends to catch up with its angular delay accumulated during the previous 31 days, relative to the driving wheel 110, and causes the display wheel 130 to rotate (in the same direction rotation than the driving wheel 110) so as to advance the date hand 2 forward (in the direction of movement clockwise) until the passage of the smooth angular sector 131 and until the intermediate wheel 150 comes into contact with the tooth d1 bordering the smooth angular sector 131, as illustrated in Figure 6 .
  • the pitch of the driving wheel 110 is not yet complete because the jumper 180 is not yet positioned between two teeth of the driving wheel 110.
  • the jumper 180 With the restoring force of the elastic element acting on the jumper 180, the jumper 180 tends to finalize the rotation of the driving wheel 110 to the next indexing position.
  • the additional rotation of the driving wheel 110 under the effect of the jumper 180 will make it possible to shift the first intermediate wheel 150 and therefore the display wheel 130 to finalize the jump of the date hand 2 and bring the date hand 2 next to the number 1 of the date graduation of dial 3, as illustrated in Figure 3 previously described.
  • THE figures 7a and 7b illustrate a second embodiment of the anterograde display mechanism according to the invention for displaying a date.
  • FIG 7a illustrates a second example of making a dial 3 carrying a date graduation
  • the figure 7b illustrates a second embodiment of a corresponding display wheel.
  • dial 3 is divided into 35 equidistant divisions, two consecutive divisions of which are separated by the first angle ⁇ .
  • indexable positions P x with x ranging from 1 to 35.
  • the 31 digits forming the markers of the date graduation are distributed at 31 indexable positions P x of dial 3, positions P 1 to P 15 and positions P 16 to P 35 .
  • the date hand 2 here makes a long jump of angle ⁇ , passing from the number 15 (indexable position P 15 ) to the number 16 (indexable position P 20 ), five times greater than the angle ⁇ between the other digits of the date scale.
  • the driving wheel 110 has 31 teeth corresponding to the 31 indexed positions of the date hand 2, and therefore 31 marks of the dial 3 of the date graduation.
  • the second wheel 120 and the fourth wheel have 35 teeth
  • the display wheel 130 is equivalent to a wheel with 35 teeth.
  • the display wheel 130 is equivalent to a wheel of 35 teeth on which five consecutive teeth are truncated at the level of the smooth angular sector 131.
  • the display wheel 130 therefore has 30 effective teeth .
  • THE figures 8a and 8b illustrate a third embodiment of the anterograde display mechanism according to the invention for displaying minutes.
  • figure 8a illustrates a third embodiment of a dial 3 carrying a minute graduation
  • figure 8b illustrates a third embodiment of a corresponding display wheel.
  • dial 3 is divided into 66 equidistant divisions, two consecutive divisions of which are separated by the first angle ⁇ .
  • indexable positions P x with x ranging from 1 to 66.
  • the 60 marks of the minute graduation are distributed over 60 indexable positions P x of dial 3, positions P 1 to P 30 , and positions P 34 to P 63 .
  • Dial 3 has two sectors S 1 and S 2 comprising three successive divisions, here the positions P 31 to P 33 and P 64 to P 66 , which are fictitious and do not have a minute marker. Therefore, these divisions are not intended to be indexed by the minute hand.
  • the minute hand makes a first long jump of an angle ⁇ 1 , four times greater than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the minute hand here makes a second long jump of an angle ⁇ 2 , four times greater than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the drive wheel has 60 teeth for the 60 minutes indexed by the minute display member.
  • the second wheel 120 and the fourth wheel have 66 teeth
  • the display wheel 130 is equivalent to a wheel with 66 teeth.
  • the display wheel 130 illustrated in figure 8b , here comprises two smooth angular sectors 131a, 131b opposed to each other to enable indexing of the display member at the level of the minute graduation of dial 3 illustrated in figure 8a , as well as the short jumps of angle ⁇ and the two long jumps of angles ⁇ 1 and ⁇ 2 .
  • the display wheel 130 is equivalent to a wheel of 66 teeth on which four consecutive teeth are truncated at the level of a first smooth angular sector 131a and four consecutive teeth are truncated at the level d a second smooth angular sector 131b.
  • the display wheel 130 therefore has 58 effective teeth, i.e. 29 consecutive teeth between each smooth angular sector 131a, 131b, i.e. 29 consecutive teeth on a first toothed portion and 29 consecutive teeth on a second toothed portion.
  • THE figures 9a and 9b illustrate a fourth embodiment of the anterograde display mechanism according to the invention, in particular the minute display.
  • figure 9a illustrates a fourth example of production of a dial 3 carrying a minute graduation
  • figure 9b illustrates a fourth embodiment of a corresponding display wheel.
  • dial 3 is divided into 68 equidistant divisions, two consecutive divisions of which are separated by the first angle ⁇ .
  • indexable positions P x with x ranging from 1 to 68.
  • the 60 marks of the minute graduation are distributed over 60 indexable positions P x .
  • the dial 3 has four sectors S 1 , S 2 , S 3 and S 4 of two successive divisions, here the positions P 16 , P 17 , P 33 , P 34 , P 50 , P 51 , P 67 , P 68 , which are fictitious and do not have a minute marker. Therefore, these divisions are not intended to be indexed by the minute hand.
  • the minute hand makes a first jump along an angle ⁇ 1 , three times larger than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the minute hand here makes a second long jump of an angle ⁇ 2 , three times greater than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the minute hand here makes a third long jump of an angle ⁇ 3 , three times greater than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the minute hand here makes a fourth long jump of an angle ⁇ 4 , three times greater than the angle ⁇ corresponding to the short jump between the digits of the minute scale.
  • the drive wheel has 60 teeth for the 60 minutes indexed by the minute display member.
  • the second wheel 120 and the fourth wheel have 68 teeth
  • the display wheel 130 is equivalent to a wheel with 68 teeth.
  • the display wheel 130 illustrated in figure 9b , here comprises four smooth angular sectors 131a, 131b, 131c, 131d distributed equidistantly on the display wheel 130 to allow indexing of the display member at the level of the minute graduation of dial 3 illustrated in figure 9a , as well as the short jumps of angle ⁇ and the four long jumps of angles ⁇ 1 , ⁇ 2 , ⁇ 3 , ⁇ 4 .
  • the display wheel 130 is equivalent to a wheel with 68 teeth on which two consecutive teeth are truncated at four smooth angular sectors 131a, 131b, 131c, 131d.
  • the display wheel 130 therefore has 56 effective teeth, or 14 consecutive teeth between each smooth angular sector 131a, 131b, 131c, 131d.
  • the display wheel 130 comprises a first toothed portion of 14 teeth, a second toothed portion of 14 teeth, a third toothed portion of 14 teeth and a fourth toothed portion of 14 teeth, each of the toothed portions being separated by a sector smooth angular 131a, 131b, 131c, 131d corresponding to an angular sector equivalent to three teeth.
  • the invention also relates to a watch movement comprising such an anterograde display mechanism.
  • the invention also relates to a timepiece, such as a wristwatch comprising such a watch movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Electromechanical Clocks (AREA)
EP22173340.5A 2022-05-13 2022-05-13 Anterograder anzeigemechanismus für uhr Pending EP4276545A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP22173340.5A EP4276545A1 (de) 2022-05-13 2022-05-13 Anterograder anzeigemechanismus für uhr
US18/173,942 US20230367264A1 (en) 2022-05-13 2023-02-24 Anterograde display mechanism for timepiece
JP2023049307A JP7472350B2 (ja) 2022-05-13 2023-03-27 計時器用の順行性ディスプレイ機構
CN202310427394.8A CN117055320A (zh) 2022-05-13 2023-04-20 用于钟表的顺行显示机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22173340.5A EP4276545A1 (de) 2022-05-13 2022-05-13 Anterograder anzeigemechanismus für uhr

Publications (1)

Publication Number Publication Date
EP4276545A1 true EP4276545A1 (de) 2023-11-15

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EP22173340.5A Pending EP4276545A1 (de) 2022-05-13 2022-05-13 Anterograder anzeigemechanismus für uhr

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US (1) US20230367264A1 (de)
EP (1) EP4276545A1 (de)
JP (1) JP7472350B2 (de)
CN (1) CN117055320A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699736B1 (fr) 2006-03-24 2010-04-30 Richemont Int Sa Dispositif de quantième central.
CH707439A2 (fr) * 2013-01-11 2014-07-15 Patek Philippe Sa Geneve Mécanisme d'affichage pour pièce d'horlogerie.
CH713209A2 (fr) 2016-12-08 2018-06-15 Richemont Int Sa Mécanisme d'affichage pour pièce d'horlogerie.
CH715723A1 (fr) * 2019-01-10 2020-07-15 Richemont Int Sa Mécanisme de saut instantané d'un mobile d'affichage.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH695798A5 (fr) 2002-08-23 2006-08-31 Franck Muller Watchland Sa Dispositif d'affichage analogique pour pièce d'horlogerie.
CH705782A2 (fr) 2011-11-17 2013-05-31 Blancpain Sa Dispositif mécanique indicateur de changement d'état pour un mécanisme d'affichage semi-instantané ou instantané par sauts.
CH715809A1 (fr) 2019-02-01 2020-08-14 Mft D'horlogerie Audemars Piguet Sa Pièce d'horlogerie comportant un affichage à pas variable.
JP7209440B2 (ja) 2019-03-28 2023-01-20 日本製鉄株式会社 鉄道車両用軸継手の緩衝部材および鉄道車両用軸継手

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699736B1 (fr) 2006-03-24 2010-04-30 Richemont Int Sa Dispositif de quantième central.
CH707439A2 (fr) * 2013-01-11 2014-07-15 Patek Philippe Sa Geneve Mécanisme d'affichage pour pièce d'horlogerie.
CH713209A2 (fr) 2016-12-08 2018-06-15 Richemont Int Sa Mécanisme d'affichage pour pièce d'horlogerie.
CH715723A1 (fr) * 2019-01-10 2020-07-15 Richemont Int Sa Mécanisme de saut instantané d'un mobile d'affichage.

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JP7472350B2 (ja) 2024-04-22
US20230367264A1 (en) 2023-11-16
JP2023168233A (ja) 2023-11-24
CN117055320A (zh) 2023-11-14

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