EP4365684A1 - Uhrmechanismus - Google Patents

Uhrmechanismus Download PDF

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Publication number
EP4365684A1
EP4365684A1 EP23208049.9A EP23208049A EP4365684A1 EP 4365684 A1 EP4365684 A1 EP 4365684A1 EP 23208049 A EP23208049 A EP 23208049A EP 4365684 A1 EP4365684 A1 EP 4365684A1
Authority
EP
European Patent Office
Prior art keywords
driving wheel
watch mechanism
finger
axis
rotation
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
EP23208049.9A
Other languages
English (en)
French (fr)
Inventor
Eric Guffond
Daliv Ilic
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.)
Louis Vuitton Malletier SA
Original Assignee
Louis Vuitton Malletier 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 Louis Vuitton Malletier SA filed Critical Louis Vuitton Malletier SA
Publication of EP4365684A1 publication Critical patent/EP4365684A1/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
    • G04B19/06—Dials
    • G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
    • 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
    • G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
    • G04B19/166—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24 with rotating 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
    • G04B19/04—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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/25—Devices for setting the date indicators manually
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • 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
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
    • G04B19/2532—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement automatically corrected at the end of mounths having less than 31 days
    • 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
    • G04B45/0007—Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork
    • 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
    • G04B45/0023—Inscriptions or pictures moved by the clockwork, e.g. for advertising
    • 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

Definitions

  • the present invention relates to a watch mechanism for a timepiece.
  • the present invention also relates to a timepiece, such as a wristwatch, comprising this watch mechanism.
  • Known watch mechanisms often include a transformation mobile, rotating jerkily around an axis of the mobile, thus occupying different angular positions.
  • This mobile can for example be arranged to transform a continuous rotational movement into a jerky rotational movement.
  • movable does not necessarily indicate an assembly of a wheel with a pinion, but generally indicates a “movable” element (adjective), for example an element movable through a rotational movement.
  • An example of a transformation mobile is a Maltese cross.
  • An example of a known watch mechanism 100' comprising a known Maltese cross is illustrated on the figure 1 .
  • the known watch mechanism 100' of the figure 1 comprises a driving assembly, comprising a driving wheel 80', arranged to rotate, for example continuously, around an axis of rotation X', and a finger 81' which on the figure 1 is integral with the driving wheel 80', i.e. it moves with the driving wheel 80'.
  • the transformation ring 70' of the watch mechanism 100' includes an outer perimeter 700', comprising grooves 701'. Each groove 701' is arranged to cooperate with the finger 81' of the driving assembly, so as to transform the rotational movement of the driving wheel 80' into a jerky rotational movement of the transformation ring 70', which is therefore a driven mobile.
  • the finger 81' exits the groove 701': the driving wheel 80' continues to rotate around the axis X' while the transformation ring 70' remains stationary , until the moment when the finger 81' again enters a groove 701' adjacent to the previous one.
  • the peripheral part of the driving wheel 80' is partially hollowed out and the central part 802', namely that close to the axis X', has a shape which is complementary to a (rounded) portion 702' of the outer perimeter of the ring transformation ring 70', in order to stabilize the position of the transformation ring 70' when the finger 81' is not engaged in a groove 701'.
  • the transformation ring is generally called a “Maltese cross”.
  • This known watch mechanism 100' is bulky and therefore unsuitable for use in limited space, for example for use in a wristwatch case.
  • An aim of the present invention is to propose a watch mechanism free from the limitations of known watch mechanisms.
  • Another aim of the invention is to propose a less bulky watch mechanism compared to known watch mechanisms.
  • Another aim of the invention is to propose a watch mechanism adapted for use in a limited space, for example in a case of a wristwatch.
  • Another aim of the invention is to propose an alternative watch mechanism to known watch mechanisms.
  • the watch mechanism for a timepiece comprises a driving assembly, comprising a driving wheel, arranged to rotate around an axis of rotation of the driving wheel, and a finger arranged to rotate around the axis of rotation of the driving wheel.
  • the interior perimeter of the transformation ring defines a central opening and comprises radial grooves, each radial groove being arranged to cooperate with the finger of the driving assembly so that the transformation ring rotates jerkily around the axis of rotation of the transformation ring.
  • a "radial groove” is a groove whose main dimension is substantially aligned with a radius of the transformation ring.
  • the expression "the principal dimension is substantially aligned with a radius of the transformation ring” indicates that angular offsets from perfect alignment with a radius of the transformation ring can be accepted. Angular offsets are present for example in the case where, as on the figure 1 , the center distance between the transformation ring and the axis of the driving wheel is too small to ensure proper operation with the grooves perfectly aligned with the spokes of the transformation ring. Indeed, without inclination, the risk of bracing when the finger enters the grooves would be significant.
  • the driving assembly is at least partially received in the central opening of the transformation ring.
  • the watch mechanism according to the invention is less bulky compared to known watch mechanisms. It is therefore well suited for use in limited space, for example in a wristwatch case.
  • the transformation ring of the present invention can also be called “internal Maltese cross", because it has branches (the grooves), which are internal, namely they belong to the internal diameter of the ring.
  • Maltese cross is known in other fields, other than watchmaking. It has been used for a long time in cinema camera barrels.
  • the driving wheel is arranged to rotate continuously about its axis of rotation.
  • the transformation ring transforms the continuous rotational movement of the driving wheel into a jerky rotational movement of the transformation ring.
  • the driving wheel is arranged to rotate jerkily around the axis of rotation of the driving wheel.
  • the transformation ring can transform a first jerky rotational movement of the driving wheel into a second jerky rotational movement of the transformation ring, the second jerky rotational movement being different from the first.
  • the finger is permanently attached to the driving wheel.
  • the expression “permanent driving wheel” indicates the entire period during which the driving wheel rotates (continuously or jerkily) around its axis.
  • the finger is attached to the driving wheel for a predetermined period, namely for a sub-period of the period during which the driving wheel rotates (continuously or jerkily) around its axis.
  • the driving assembly comprises a cam arranged to rotate around the axis of rotation of the driving wheel, the finger being permanently attached to the cam.
  • cam continuous indicates the entire period during which the cam rotates around the axis of rotation of the driving wheel.
  • the watch mechanism comprises a pin to permanently secure the finger to the cam, the cam comprising an opening arranged to receive the pin, the pin being arranged to cooperate with a groove cut in the driving wheel.
  • the cam is arranged to be driven for a first period by the driving wheel, and for a second period by a rocker, for example via a roller.
  • the radial grooves are equidistant.
  • the equidistance of the grooves, and in particular of their entrances, ensures operation without bracing the finger on the entry points of the grooves.
  • each groove outside the entry point may be different from one groove to another, for example it may be inclined or of a “left” shape or any other.
  • the sides of the groove must, however, always remain sufficiently wide to allow the sliding of the finger plus any possible clearance. functioning.
  • the grooves are different for each operating step, so as to differentiate each movement (in the case of an application for setting a automaton in motion for example), while guaranteeing contact between the The element locks the transformation ring after a jump, without creating a blockage when the finger is still engaged in a groove.
  • the radial grooves are identical.
  • the driving assembly comprises a locking element integral with the driving wheel, the interior perimeter of the transformation ring comprising locking portions, each locking portion being arranged to cooperate with the locking element so as to lock the position of the transformation ring after each jerky rotation movement of the transformation ring.
  • the locking portion is placed between two consecutive radial grooves.
  • the locking portion is in the shape of an arc of a circle, the locking element comprising a profile whose shape includes this arc of a circle.
  • each locking portion is arranged to cooperate with the locking element in a period between the moment when the finger leaves a radial groove and the moment when the finger engages in an adjacent radial groove.
  • the watch mechanism comprises a disk, the driving wheel being sandwiched between the cam and the disk.
  • the disk also includes the finger and/or the locking element.
  • the transformation ring includes at least one indexing hole for indexing the transformation ring during its manufacture.
  • the transformation ring includes at least one balancing hole for balancing the transformation ring.
  • the interior perimeter of the transformation ring includes twelve radial grooves.
  • the invention also relates to a timepiece, for example a wristwatch, comprising the watch mechanism according to the invention.
  • the transformation ring is connected (directly or indirectly) to an indicator member, for example to allow it a jerky movement, or to allow one to move from one indicator member to the next, activating each time a clutch mechanism which makes it possible to rotate each engaged indicator member around its axis, for example to display information.
  • the invention is not limited to these applications, but also relates to other uses of the watch mechanism according to the invention, for example and in a non-limiting manner a use of the watch mechanism according to the invention for a date and in general for any watchmaking application that requires jerky movement in angular steps.
  • FIG. 2 illustrates a top view of a movement for a wristwatch comprising a watch mechanism 100 according to one embodiment of the invention.
  • This movement 1, as better visible on the Figure 3 comprises several indicator bodies 10, in particular twelve indicator bodies.
  • These indicator bodies 10 are cubes, as better visible on the Figure 3 .
  • This shape is however not limiting and these indicator bodies can have other three-dimensional shapes, for example they can be bubbles, semi-bubbles, spherical elements, pyramidal elements, polyhedrons, etc.
  • the indicator members are substantially two-dimensional elements, such as disks, polygons, alphanumeric characters or symbols, and/or elements.
  • the indicator members 10 are arranged to rotate jerkily thanks to the watch mechanism according to the invention.
  • all the indicator members 10 are rotated in a first position with the exception of one mobile rotated in a second position.
  • a watch supra-mechanism comprising the watch mechanism 100 according to the invention makes it possible to turn the indicator member which occupies the second position every hour to return it to the first position, and to turn another indicator member from the first position to the second position.
  • the current time is determined at each moment by the location of the mobile occupying the second position.
  • FIG. 4 illustrates a top view of the watch mechanism 100 of the portion of a wristwatch of the figure 2 , in a first position.
  • FIG 5 illustrates a perspective view of the watch mechanism 100 of the Figure 4 .
  • Figure 6 illustrates a bottom view of the watch mechanism 100 of the Figure 4 .
  • Figure 7 illustrates a perspective view of the watch mechanism 100 of the Figure 6 .
  • the watch mechanism 100 illustrated comprises a driving assembly, comprising a driving wheel 80, arranged to rotate around an axis of rotation X of the driving wheel 80, and a finger 81 arranged to rotate around the axis of rotation the driving wheel 80.
  • the interior perimeter 705 defines a central opening 703 and comprises radial grooves 701, each radial groove 701 being arranged to cooperate with the finger 81 of the driving assembly so that the transformation ring 70 rotates so jerky around the axis of rotation Y of the transformation ring 70, namely ensuring that the transformation ring 70 rotates in angular steps.
  • the driving assembly is at least partially received in the central opening 703 of the transformation ring 70.
  • the watch mechanism 100 according to the invention is less bulky compared to known watch mechanisms. It is therefore well suited for use in limited space, for example in a wristwatch case.
  • the driving wheel 80 is arranged to rotate continuously around its axis of rotation X.
  • the transformation ring 70 transforms the continuous rotational movement of the driving wheel 80 into a movement of jerky rotation of the transformation ring 70.
  • the driving wheel 80 is driven in continuous rotation thanks to a gear with an intermediate mobile 60, in turn connected to the cog of a basic movement, namely a movement which allows time to be counted fluent.
  • a gear with an intermediate mobile 60 in turn connected to the cog of a basic movement, namely a movement which allows time to be counted fluent.
  • the driving wheel 80 is arranged to rotate jerkily around the axis of rotation X of the driving wheel.
  • the transformation ring 70 can transform a first jerky rotational movement of the driving wheel 80 into a second jerky rotational movement of the transformation ring 70, the second jerky rotational movement being different from the first.
  • the finger 81 is not permanently attached to the driving wheel 80, namely it is not attached to the driving wheel 80 for the entire period during which the driving wheel 80 rotates (continuously in the embodiment of the figures 4 to 7 ) around its X axis.
  • the finger 81 is integral with the driving wheel 80 for a predetermined period, namely for a sub-period of the period during which the driving wheel 80 rotates (continuously in the embodiment of the figures 4 to 7 ) around its X axis.
  • the finger 81 is on the other hand permanently attached to a cam 50, namely it is attached to the cam 50 for the entire period during which the cam 50 rotates around the rotation axis X of the driving wheel 80.
  • the period during which the cam 50 rotates around the rotation axis X of the driving wheel 80 is a sub-period of the period during which the driving wheel 80 rotates around the rotation axis
  • the transformation ring 70 comprises several through holes 704, visible in particular on the figure 4 , of different dimensions, which are only used for indexing the transformation ring 70 during its manufacture, for example during its machining. These are therefore indexing holes.
  • the transformation ring 70 comprises two oblong holes, in the shape of a “C”, visible in particular on the figure 4 , which allow balancing of the masses of the transformation ring 70.
  • the transformation ring 70 comprises substantially square openings 707, connected by a pin, which allow the training of the Maltese crosses known (not illustrated), which are dedicated to each indicator member 10, as for example described in the patent application CH700615 filed by the plaintiff.
  • the radial grooves 701 are equidistant.
  • each radial groove 701 are identical. This embodiment is, however, not limiting and each radial groove 701 could have a shape and/or dimensions different from at least one other radial groove 701.
  • the interior perimeter of the transformation ring comprises twelve radial grooves 701. In one embodiment, the number of radial grooves 701 corresponds to the number of indicator members 10.
  • the driving assembly comprises a locking element 82 secured to the driving wheel 80.
  • this locking element 82 is a cam, for example a cam having substantially a half-moon shape.
  • the interior perimeter 701 of the transformation ring 70 comprising locking portions 702, visible for example on the Figure 4 , each locking portion 702 being arranged to cooperate with the locking element 82 (integral to the driving wheel 80) so as to lock the position of the transformation ring 70 after each jerky rotational movement of the transformation ring 70.
  • the locking portion 702 is placed between two consecutive radial grooves 701.
  • the locking portion 701 is in the shape of an arc of a circle, the locking element 82 comprising a profile having the same arc of a circle shape.
  • each locking portion 702 is arranged to cooperate with the locking element 82 in a period between the moment when the finger 81 leaves a radial groove 701 and the moment when the finger 81 engages in a adjacent radial groove 701.
  • FIG 8 illustrates an exploded view of a part of a watch mechanism according to one embodiment of the invention, in particular of the driving assembly, which in this case comprises the cam 50, the driving wheel 80 and a disc 90, the wheel driving 80 being sandwiched between the cam 50 and the disc 90.
  • the driving assembly which in this case comprises the cam 50, the driving wheel 80 and a disc 90, the wheel driving 80 being sandwiched between the cam 50 and the disc 90.
  • the disk 90 also includes the finger 81 and a locking element 82.
  • the finger 81 and the locking element 82 are directly machined in the disk 90.
  • the disk 90 also includes at least one hole 92 (two in the example of figures 8 And 9 ) which accommodate a pin 20 connecting the cam 50 to the finger 81.
  • Cam 50 of the figure 8 comprises an opening 52 arranged to receive the pin 20.
  • this pin 20 is arranged to slide in a groove 88 cut in the driving wheel 80, when the cam 50 rotates around the axis X.
  • this groove 88 is “C” shaped.
  • the pin 20 allows the cam 50 and the finger 81 to be joined together.
  • the driving wheel 80 placed between the cam 50 and the finger 81, drives the cam 50 and the finger 81 by contact between the pin 20 and one of the ends of the groove 88 cut in the driving wheel 80.
  • this contact between the pin 20 and one of the ends of the groove 88 is made for a period (for example during 59min 59s) which corresponds to the rise of cam 50 through 180°.
  • a spring 42 of a rocker 40 cooperating with the cam 50 for example via a roller 30, is tensioned, which makes it possible to accumulate the energy necessary for the instantaneous jump of the transformation ring 70.
  • the cam 50 is driven by the driving wheel 80.
  • This embodiment allows the transformation ring 70 to move instantly from a first angular position to a second angular position.
  • the transformation ring 70 passes non-instantaneously from a first angular position to a second angular position.
  • the cam 50 comprises two curves 53, 54 (one rise and one fall), a point 51 and hollow 55, arranged to stop the cam in the neutral position after a jump of the transformation ring 70.
  • FIG. 10 illustrates a view from above of a part of the watch mechanism 100 according to one embodiment of the invention in a first position which allows the transformation ring 70 to move instantly from a first angular position to a second angular position.
  • the cam 50 which was driving is then instantly rotated by the support of the roller 30 on a curve of the cam 50 (in particular the descending curve): the finger 81 linked to the cam 50 by the pin 20 rotates with the cam 50 and then comes into contact with one of the grooves 701 of the transformation ring 70.
  • FIG 11 illustrates a view from above of the part of the watch mechanism 100 of the Figure 10 in a second position.
  • the wheel 80 continues its rotation (for example with the speed of one revolution per hour) while the finger 81, the pin 20, the cam 50, and the transformation ring 70 rotate instantly.
  • the cam 50 and the finger 81 perform an angular travel of 180° and the transformation ring 70 performs an angular travel of 1/N turns, N being the number of indicator members 10.
  • FIG. 12 illustrates a view from above of the part of the watch mechanism 100 of the Figure 10 in a third position.
  • the transformation ring 70 has jumped, the cam 50 is at rest and kept in rotation by pressing the roller 30 on the points 56 at the ends of the hollow 55.
  • the transformation ring 70 is kept immobile by contact with the locking portion 82.
  • the pin 20 is now placed close to the second end of the groove 88 of the wheel 80, it has rotated 180° with the cam 50 and the finger 81 under the impulse of the rocker 40.
  • the driving finger 81 is disengaged of the groove 701, and the driving wheel 80 will rotate (by 1 ⁇ 2 turn in the example illustrated) so that the first end of the groove 88 comes into contact again with the pin 20 and thus drives the finger 81 again.
  • FIG. 13 illustrates a partially cut perspective view from above of the assembly leading to the watch mechanism 100 according to a first embodiment.
  • Figure 14 illustrates a partially cut perspective view from below of the assembly leading from the Figure 13 .
  • the pin 20 can be driven into one or the other of the holes 92 depending on the assembly and the desired direction of rotation of the drive of the transformation ring 70, thus making the reversible watch mechanism.
  • THE figures 15 to 20 illustrate a top view of the watch mechanism of the figure 4 , in several consecutive positions. Compared to the Figure 4 , the watch mechanism 100 of figures 15 to 20 also includes a central wheel 61, which meshes with the intermediate mobile 60.
  • the locking portion 702 is arranged to cooperate with the locking element 82, which rotates around the axis 80 rotates, for example in the direction of rotation indicated by arrow A.
  • the position of the Figure 16 corresponds to the position of the Figure 10 .
  • the finger 81, secured to the cam 50, also rotates around the axis in the direction of rotation of arrow B, when the locking element 82 stops its cooperation with the locking portion 702.
  • the locking element 82 When the finger 81 begins to approach the exit of the groove 701, the locking element 82 also approaches the locking portion 702, as illustrated in the Figure 19 .
  • THE figures 21 And 22 illustrate another (non-limiting) example of a use of the watch mechanism according to the invention.
  • the watch mechanism 100 comprises a transformation mobile 70 arranged to be rotated around the axis X.
  • the transformation mobile 70 occupies (at least) a number of angular positions equal to one revolution divided by an integer. In the embodiment of figures 21 And 22 , this integer corresponds to the number of indicator members 10 of the timepiece, twelve in the example illustrated.
  • Each indicator member 10 is arranged to rotate around an indicator member axis C.
  • the axis C of the indicator member passes through the center of gravity of the indicator member concerned 10.
  • the indicator bodies 10 are semi-bubbles or semi-spherical elements.
  • the invention is not limited to indicator members 10 having these shapes, but also includes other indicator members 10 having another three-dimensional shape as well as substantially two-dimensional elements.
  • At least one indicator member 10 may carry one (or more) decorative pattern(s) 11, for example a relief pattern, as is visible on the Figure 3 , in order to further increase the dynamism and/or readability of the information indicated when the indicator member 10 turns on itself.
  • the watch mechanism 100 also includes a set of rockers 3, better visible on the Figure 22 , each rocker 30 being associated with an indicator member 10 and being placed in correspondence with one of the possible angular positions occupied by the transformation mobile 70.
  • the watch mechanism 100 also includes a driving mobile 4, arranged to rotate permanently around a driving mobile axis.
  • this leading mobile 4 is a ring which rotates around the same axis Figure 22
  • this driving mobile 4 comprises internal teeth 402 and external teeth 401, and the internal teeth 402 cooperates (directly or indirectly, for example via an intermediate wheel 6) with a wheel 5 of the basic movement of the timepiece, which also constantly rotates around its axis (which in the example shown corresponds to the X axis).
  • the watch mechanism 100 of this embodiment therefore allows a particularly dynamic display: the information is indicated to the user of the timepiece thanks to the rotation of the indicator member (or indicator members) 10 in correspondence of which (of which) the clutch is activated, the other indicator elements not rotating.
  • the information is indicated at each moment in correspondence with the indicator member 10 which rotates at the moment when the user wishes to read this information.
  • the indicator members 10 which do not rotate (they are stationary) at the moment when the user wishes to read information do not make it possible to deduce this information.
  • the watch mechanism 100 also allows a particularly readable display: the user quickly detects the indicator member 10 which rotates on itself and deduces information therefrom.
  • Clutch is one of several types of clutch mechanisms, including one of vertical clutch mechanisms, horizontal clutch mechanisms and swinging gear clutch mechanisms, known per se in the field of technology, and which will not be described here.
  • the watch mechanism 100 includes a return spring 91 associated with each rocker 3, which improves the cooperation between the rocker 3 and the transformation ring 70.
  • the watch mechanism 100 also includes a stop 93 associated with each rocker 3, better visible on the Figure 22 , to limit pivoting of the corresponding rocker 3.
  • the watch mechanism 100 comprises a single piece 9, clearly visible on the Figure 22 , comprising both rocker return springs 91 and stops 93.
  • the one-piece part 9 comprises either the rocker return springs 91 or the stops 93.
  • neither the rocker return springs 91 nor the stops 93 belong to a single piece part 9.
  • the transformation mobile 70, the ring 4 and the one-piece part 9 are (at least partially) superimposed and the ring 4 is sandwiched between the one-piece part 9 and the transformation mobile 70.
  • the axes C of all the indicator bodies 10 are perpendicular to a main plane xy (visible on the Figure 21 ) of the leading mobile 4.
  • the axes C of all the indicator members 10 are not perpendicular to a main plane xy of the driving mobile 4.
  • the mechanism includes a second transformation ring, arranged to cooperate with a first rocker or with a second rocker (not shown), thus activating a clutch between the driving mobile 4 and a first indicator member 10 or a second indicator member (not shown) associated with the second transformation ring, consequently causing the rotation of the first indicator member 10 (or of the second indicator member), this rotation making it possible to indicate a second piece of information (for example and in a non-limiting manner, GMT information) to a user of the timepiece.
  • a second transformation ring arranged to cooperate with a first rocker or with a second rocker (not shown), thus activating a clutch between the driving mobile 4 and a first indicator member 10 or a second indicator member (not shown) associated with the second transformation ring, consequently causing the rotation of the first indicator member 10 (or of the second indicator member), this rotation making it possible to indicate a second piece of information (for example and in a non-limiting manner, GMT information) to a user of the timepiece.
  • a second piece of information
  • first transformation ring 70 and the second transformation ring are at least partially stacked.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP23208049.9A 2022-11-07 2023-11-06 Uhrmechanismus Pending EP4365684A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH001322/2022A CH720207A1 (fr) 2022-11-07 2022-11-07 Mécanisme horloger

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH700615A1 (fr) 2009-03-26 2010-09-30 Louis Vuitton Malletier Sa Pièce d'horlogerie.
US20110069590A1 (en) * 2007-05-25 2011-03-24 Paul Hartzband Timepiece with variable hour circle
EP2796941A1 (de) * 2013-04-25 2014-10-29 Harry Winston SA Uhr
CH712222A2 (fr) * 2016-03-08 2017-09-15 Seiko Instr Inc Roue d'entraînement d'indicateur de date, mécanisme de calendrier, mouvement et pièce d'horlogerie.
EP3832397A1 (de) * 2019-12-05 2021-06-09 Blancpain SA Uhr-anzeigemechanismus mit sofortigem umspringen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1705535B1 (de) * 2005-03-23 2007-07-11 Urwerk S.A. Uhr mit Zeitperiodeanzeige
EP3561611B1 (de) * 2018-04-27 2021-08-04 Montres Jaquet Droz SA Animationsmechanismus eines schmuckelements für eine uhr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110069590A1 (en) * 2007-05-25 2011-03-24 Paul Hartzband Timepiece with variable hour circle
CH700615A1 (fr) 2009-03-26 2010-09-30 Louis Vuitton Malletier Sa Pièce d'horlogerie.
EP2796941A1 (de) * 2013-04-25 2014-10-29 Harry Winston SA Uhr
CH712222A2 (fr) * 2016-03-08 2017-09-15 Seiko Instr Inc Roue d'entraînement d'indicateur de date, mécanisme de calendrier, mouvement et pièce d'horlogerie.
EP3832397A1 (de) * 2019-12-05 2021-06-09 Blancpain SA Uhr-anzeigemechanismus mit sofortigem umspringen

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