EP4363932A1 - Mouvement pour pièce d'horlogerie et pièce d'horlogerie - Google Patents
Mouvement pour pièce d'horlogerie et pièce d'horlogerieInfo
- Publication number
- EP4363932A1 EP4363932A1 EP22735910.6A EP22735910A EP4363932A1 EP 4363932 A1 EP4363932 A1 EP 4363932A1 EP 22735910 A EP22735910 A EP 22735910A EP 4363932 A1 EP4363932 A1 EP 4363932A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- movement
- assembly
- timepiece
- timepiece according
- energy source
- 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
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
-
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
- G04B17/285—Tourbillons or carrousels
-
- 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
Definitions
- the present invention relates to the field of mechanical watchmaking. It relates more particularly to a watch movement comprising a mobile regulation mechanism.
- this invention relates to a movement for a timepiece comprising a counting assembly comprising a first energy source and a gear train kinematically linked to at least one time indicator, this counting assembly forming part of a first kinematic chain; and a regulation assembly comprising a regulation member and forming part of a second kinematic chain distinct from said first kinematic chain.
- the invention also relates to a timepiece comprising such a movement.
- tourbillon or carousel type regulating mechanisms were developed for pocket watches which are generally held in vertical positions. Such regulatory mechanisms are less relevant for wristwatch-type watches, for which the position often changes, depending on the movements of the wearer of the watch.
- each tourbillon comprises a balance wheel, the position of the axes of the balance wheels being fixed during the operation of the tourbillon.
- timepieces comprising a single balance wheel carried by a regulation mechanism moving this balance wheel along non-parallel axes.
- the movement of the axis of the balance wheel takes place according to a cone.
- timepieces comprising a balance carried by a regulation mechanism moving the axis of this balance according to a sphere.
- Patent EP 3 543 797 describes a movement for a timepiece comprising a tourbillon-type regulation mechanism.
- This vortex is mobile according to a linear displacement so that the planes in which the vortex moves are always parallel to each other.
- This watch movement comprises two distinct kinematic chains.
- the first kinematic chain is conventional and is designed to display the time.
- the second kinematic chain is responsible for moving the regulating system in a direction perpendicular to the general plane of the watch movement.
- the present invention proposes to produce a watch movement in which a balance-spring is movable in a large number of different positions and orientations, these positions and these orientations being chosen by the designer of the movement, without limitation due to the obligation to follow geometric rules.
- the present invention also relates to a timepiece comprising a movement as defined above.
- a timepiece comprising a movement as defined above.
- different organs perform different functions, these functions being in principle the same in all movements. These functions are energy accumulation, metering and transmission, distribution, regulation and finally time display.
- the various components performing these functions are all continuously kinematically linked together so as to guarantee the operation of the movement of the timepiece.
- the components performing these different functions are not always kinematically linked to each other, so that at certain times of the operating cycle of the movement, they form two distinct and independent kinematic chains. .
- this allows the components of one of the kinematic chains to be moved to any desired location, without having to be kinematically linked to the elements of the other kinematic chain for the duration of the movement. Despite this, the time display and the accuracy of this display can be guaranteed.
- the balance staff can assume a large number of different positions and the correction of the isochronism of the timepiece no longer depends on its position.
- the regulation mechanism can be integrated into a wristwatch so that this mechanism is visible. Due to its particularly original operation, it gives the watch an aesthetic aspect that is quite remarkable and totally different from the known regulation mechanisms.
- - Figure 1 is a general view of the clock movement according to the invention
- - Figure 2 shows a clockwork counting assembly of the invention
- FIG. 3 is a view of a clockwork regulation assembly of Figure 1;
- FIG. 4 illustrates a clockwork release mechanism according to the present invention
- FIG. 5 is a detail view of a moving assembly forming part of the watch movement of the invention.
- FIG. 6 is a bottom view of the moving assembly of Figure 5;
- Figure 7 is a detail view of part of the moving assembly of Figure 5;
- Figure 8 shows the regulation assembly of Figure 2, in a first position, as well as the release mechanism of Figure 4;
- Figure 9 illustrates the regulation assembly and the release mechanism of Figure 8, in a second position
- Figure 11 shows the release mechanism of Figure 10, in a second position
- Figure 12 shows the release mechanism of Figure 10, in a third position
- FIG. 13 illustrates a detail of the release mechanism of Figure 10, in a fourth position.
- the movement of the invention comprises a first assembly, here named counting assembly 10 illustrated in detail by FIG. 2.
- This counting assembly performs the energy accumulation, counting and transmission functions.
- the movement of the invention comprises a second assembly, called regulation assembly 11 and represented in particular by FIG. 3.
- This regulation assembly performs the distribution and regulation functions.
- the movement of the timepiece according to the invention further comprises a guide assembly 12, shown in particular in FIGS. 1 to 4, and a release mechanism 13 shown in particular by Figure 4, whose functions and structures are explained in detail below.
- the counting assembly 10 comprises a first energy source 14, which can advantageously be made in the form of a conventional barrel 15, that is to say in particular containing a barrel spring.
- the counting assembly 10 also includes a gear train 16 powered by the mainspring.
- This gear train 16 may be formed of a center wheel set 17 comprising a center wheel 18 and a center pinion 19, and of an average wheel set 20 comprising an average wheel 21 and an average pinion 22.
- the gear train 16 further comprises at least one minute indicator 23, formed for example by a hand carried by a roadway 25.
- the counting assembly 10 of the movement of the timepiece comprises an energy transfer wheel set or transfer wheel set 26, formed of a connecting pinion 27, ensuring a kinematic connection with the gear train 16 of the the counting assembly 10 and in particular with the average wheel 21, as shown in Figure 2.
- the transfer wheel 26 further comprises a transfer wheel 28 provided with a toothing whose function is explained below .
- the mobile transfer 26 further comprises a transfer pinion provided with a return toothing 29.
- the connecting pinion 27, the return toothing 29 and the transfer wheel 28 are integral so that the rotation of one drives the rotation of others.
- the guide assembly 12 of the timepiece movement comprises two rails.
- One of the rails, named drive rail 30, is provided with a rack 31 and the other rail, named guide rail 32, is smooth.
- these two rails can have any shape, but must always be in a determined geometric relationship, detailed below.
- These rails are fixed and linked to a movement plate.
- the regulation assembly 11 comprises in particular a movable assembly 33, illustrated in particular by FIGS. 3, 5 and 6.
- This movable assembly 33 carries a second energy source 34 and a regulating member 35.
- this second energy source 34 comprises a spiral spring 36 integral with a toothed crown 37 and a bladed wheel 38.
- the bladed wheel 38 is held armed and in position by a pawl 39.
- the toothed crown 37 meshes with a pinion of an intermediate mobile 41.
- a toothed wheel 42 of this intermediate mobile 41 meshes in turn with a pinion of a drive wheel 44 of the mobile assembly 33.
- This drive wheel 44 meshes with the rack 31 of the drive rail 30 so as to ensure the movement of the movable assembly 33 along the rails during the rotation of the drive wheel 44. This is illustrated in particular by FIG. 7.
- the rails being fixed relative at a plate of the movement, the rotation of the drive wheel 44 causes the moving element 33 to move along the rails.
- the drive wheel 44 is linked to an escapement wheel 45 by means of a mechanism known as the “equal remontoir 46”.
- This escape wheel 45 cooperates with a sprung balance 47 via an anchor 48.
- the anchor 48 and the sprung balance 47 act as a regulating member 35 in particular on the movement of the mobile assembly 33, so that this moving assembly moves in steps whose frequency is regulated in particular by the oscillation frequency of the balance-spring 47.
- the anchor 48 and the balance-spring 47 perform the distribution and regulation functions as in a conventional mechanical clock movement.
- the guide assembly 12 comprises a drive rail 30 provided with a rack 31 and a guide rail 32 along which the movable assembly 33 moves.
- this movable assembly comprises a first carriage 49 provided with at least one double roller 50 intended to bear against the part of the rail drive 30 opposite the rack 31.
- This movable assembly 33 further comprises a second carriage 51 also comprising at least one double roller 52 and arranged to bear against the guide rail 32.
- one one of the carriages comprises a double roller and is mounted on a bridge 53 of the movable assembly so as to be able to pivot, while the other carriage comprises two double rollers 50.
- the geometric relationship between the two rails of the guide assembly 12 is such that the total clearance of the carriages 49, 51 with respect to the rails remains substantially constant regardless of the position of the movable assembly and regardless of the curvature of the rails. In this way, the moving assembly 33 remains constantly guided between the drive rail 30 and the guide rail 32, by means of the carriages.
- the second energy source 34, the balance-spring 47, the drive wheel 44 as well as the elements which are kinematically linked thereto form a second kinematic chain, distinct from the first kinematic chain.
- These two kinematic chains can cooperate at certain times and be independent of each other at other times, as explained in detail below.
- the release mechanism 13 is carried partly by the mobile assembly 33 and partly by a plate of the movement.
- the part of the release mechanism carried by the mobile assembly 33 is called mobile part 54 of the release mechanism.
- the part of the release mechanism carried by the platen is called pivoting part 55 of the release mechanism.
- This release mechanism 13 comprises a blocking member 56 of the gear train arranged to prevent the uncontrolled rotation of the gear train 16 of the counting assembly 10.
- This blocking member 56 can act on any moving part of this counting assembly, depending on the design of the movement.
- the blocking member 56 comprises a release arm 57 pivoting about an axis 58 linked to a plate (not shown).
- This blocking member 56 is provided with a lift 59, a return finger 60 and a safety stop 61.
- the movable part 54 of the release mechanism is illustrated in particular by FIGS. 5 and 6.
- This movable part 54 comprises a release arm 62 secured to a bridge 43 of the movable assembly 33.
- This release arm 62 comprises a lifting 63 whose function is described in detail below.
- the pivoting part 55 of the release mechanism is illustrated in particular by FIGS. 8 to 13.
- This pivoting part 55 comprises a whip 64 mounted on the plate of the movement so as to be able to pivot freely about a whip axis 65.
- This whip 64 comprises a ramp 66 having a shape and a position such that it can cooperate with the lifting 63 of the release arm 62 when the movable assembly 33 passes close to this ramp 66.
- the whip 64 also comprises a groove 67 in which can move the release arm 57 of the blocking member 56.
- This whip 64 further comprises a safety shoulder 68 arranged to cooperate with the safety stop 61 of the blocking member 56, and a return spring 69 intended to bring the whip 64 into a rest position.
- the rotation around its axis of rotation 58 of the blocking member 56 is limited by the safety stop 61, which can bear against the safety shoulder 68 of the whip 64.
- the lifting 59 of the blocking member 56 remains in the path of a first tooth 70 of the transfer wheel set 26.
- the counting assembly 10 is first kept stopped by the blocking member 56 of the release mechanism 13.
- the lift 59 of this blocking member is in contact with the first tooth 70 of the transfer wheel 28 and prevents the transfer mobile 26 from rotating around its axis of rotation.
- the elements forming the first kinematic chain are stopped. This position is illustrated by figures 12 and 13.
- Energy is stored in the spiral spring 36 of the second energy source 34 of the regulation assembly 11 . This energy has the effect of actuating the balance-spring 47 and the lever 48, in a conventional manner.
- the energy is also transmitted to the drive wheel 44 of the mobile assembly 33.
- the anchor 48 releases the cog of the mobile assembly and allows the drive wheel 44 to pivot, which has the effect of moving the movable assembly 33 along the drive rail 30 by means of the rack 31.
- the movable assembly 33 is guided along the path defined by the rails.
- the movement of the mobile assembly 33 is carried out at a known, constant and predefined speed which depends in particular on the frequency of oscillation of the balance-spring 47.
- the mobile part 54 of the release mechanism does not cooperate with the pivoting part 55 of this release mechanism.
- the whip 64 is at rest, held in this position by the return spring 69.
- the release arm 62 of the movable part 54 of the release mechanism comes into contact with the ramp 66 of the whip 64.
- the contact of the lift 63 of the release arm 62 with this ramp 66 has the effect of causing the whip 64 to pivot about its axis of rotation 65.
- the release arm 57 of the blocking member 56 slides in the groove 67 of the whip 64, under the effect of the rotation of the whip around the axis of the whip 65.
- the pivoting part 55 of the release mechanism is armed to its maximum.
- the lift 63 of the release arm 62 escapes from the ramp 66 of the whip 64.
- the whip 64 falls back pivoting around the whip axis 65 and stores energy during its fall, in such a way that it exceeds its rest position.
- the release arm 57 of the locking member 56 comes into contact with the edge of the groove 67.
- the locking member 56 then pivots about its axis of rotation 58. This causes the displacement of this locking member 56 in a so-called unlocked position, in which the release arm 57 is moved so that its lift 59 is no longer resting against the first tooth 70 of the transfer wheel 28 by creating a recoil angle at this transfer wheel.
- the return finger 60 is placed between two teeth of the return toothing 29.
- the transfer mobile 26 can then turn around its axis under the effect of the force transmitted from the barrel 15, via the gear train 16 and the transfer pinion 29. This position is illustrated by figure 11 .
- the energy supplied by the barrel 15 to the transfer wheel 26 is transmitted to the bladed wheel 38 of the second energy source 34.
- a third tooth 72 of the transfer wheel 28 comes into contact with a blade 73 of the blade wheel 38 of the second energy source.
- the rotation of the transfer mobile 26 has the effect of rotating the paddle wheel 38 and charging the spiral spring 36 with the second energy source 34.
- the transfer wheel 28 performs a rotation corresponding to one tooth.
- a second tooth 71 of the return toothing 29 pushes the return finger 60 of the locking member 56.
- This locking member pivots around its axis 58 to return to the rest position.
- the release arm 57 of the blocking member presses against the edge of the groove 67 and brings the whip 64 back to the rest position.
- the locking member 56 resumes a locking position in which a fourth tooth 75 of the transfer wheel 28 resumes bearing against the lifting 59 of the member 56 and the second tooth 71 of the return toothing 29 has pushed the return finger 60 so that the lift 59 is on the path of the fourth tooth 75 of the transfer wheel 28.
- the fourth tooth 75 presses on the lift 59 and rotates the blocking member 56, around the axis 58, so that it bears against a stop 76 of the blocking member.
- the third tooth 72 of the transfer wheel 28 has pushed the blade 73 sufficiently, so that one of the blades 74 is wedged on the pawl 39.
- the energy contained in the first energy source 14 is released and is transmitted to the second energy source 34 via the gear train 16, of the mobile transfer of energy 26 and the paddle wheel 38.
- the first kinematic chain containing the barrel 15 and the transfer wheel set 26 and the second kinematic chain containing the second energy source 34 and the escapement are kinematically linked together .
- the energy transferred from the first energy source 14 to the second energy source 34 is sufficient for the mobile assembly 33 to be able to perform a sufficient movement to bring it to the next location in which energy will be again transferred from the first energy source to the second energy source.
- the release of the blocking member 56 also involves the release of the gear train 16 and the displacement of the minute indicator 23 for a duration corresponding to the travel time of the moving assembly 33.
- the recharging of the second energy source 34 can be done in an alternation of the exhaust.
- the moving assembly 33 remains stationary during recharging.
- This recharging can also be carried out for more than one alternation of the escapement.
- the moving assembly 33 moves during recharging.
- the moving assembly 33 continues its journey along the rails while the counting assembly 10 remains stationary until the next release of the blocking member 56.
- the assembly comprising the whip 64, the blocking member 56 and the transfer wheel set 26 can be considered as a "recharging station” in the sense that energy is recharged in the second energy source 34 when the mobile assembly 33 arrives next to the whip.
- the moving assembly 33 performs a lap of the rails in one minute and only one charging station is provided.
- the time indicator for example the minute indicator 23
- the time indicator will be moved by an angle corresponding to a duration of one minute.
- the counting assembly 10 and the regulating assembly 11 do not always cooperate with each other. Indeed, the regulation assembly 11 is autonomous and independent of the counting assembly 10 throughout the course it performs, except when it cooperates with the whip 64. This independence makes it possible to move the regulation assembly 11 along almost any route defined by the rails. At a certain location along the path of the moving assembly 33, the counting assembly 10 and the regulating assembly 11 form a single kinematic chain, as in a conventional movement, before separating again.
- the invention has been described according to a specific embodiment. However, many variations are possible.
- a single "charging station” is provided. However, it is possible to place several stations along the route taken by the mobile unit, such as three stations equidistant or at irregular intervals. In this case, the minutes indicator is moved from a position corresponding to 20 seconds or the appropriate duration, each time the counting assembly and the timing assembly form the same kinematic chain.
- the second energy source is powered by the first energy source. It is possible to use a second independent source of energy which could be mechanical, or even electrical.
- the guides are represented by roller carriages. However, these carts could take other forms.
- each rail forms a closed circuit so that the moving assembly always moves in the same direction.
- the rails may form an open circuit.
- the function of energy transfer by means of the transfer spindle and the function of displacement of the time indicator are linked and are carried out when the mobile assembly is in a determined position.
- these two functions could be carried out independently.
- the transfer of energy could, for example, be carried out twice for each revolution of the moving assembly, whereas the displacement of the time indicator could be carried out only once per revolution or, on the contrary, three times per revolution.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- Electromechanical Clocks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21182792.8A EP4113215A1 (fr) | 2021-06-30 | 2021-06-30 | Mouvement pour pièce d'horlogerie et pièce d'horlogerie comportant un tel mouvement |
| PCT/EP2022/067973 WO2023275184A1 (fr) | 2021-06-30 | 2022-06-29 | Mouvement pour pièce d'horlogerie et pièce d'horlogerie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4363932A1 true EP4363932A1 (fr) | 2024-05-08 |
| EP4363932B1 EP4363932B1 (fr) | 2025-07-09 |
Family
ID=76730373
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21182792.8A Withdrawn EP4113215A1 (fr) | 2021-06-30 | 2021-06-30 | Mouvement pour pièce d'horlogerie et pièce d'horlogerie comportant un tel mouvement |
| EP22735910.6A Active EP4363932B1 (fr) | 2021-06-30 | 2022-06-29 | Mouvement pour pièce d'horlogerie et pièce d'horlogerie |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21182792.8A Withdrawn EP4113215A1 (fr) | 2021-06-30 | 2021-06-30 | Mouvement pour pièce d'horlogerie et pièce d'horlogerie comportant un tel mouvement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240329599A1 (fr) |
| EP (2) | EP4113215A1 (fr) |
| JP (1) | JP2024524482A (fr) |
| CN (1) | CN117581165A (fr) |
| WO (1) | WO2023275184A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1864190B1 (fr) * | 2005-03-23 | 2010-05-05 | Bnb Concept Sa | Mouvement pour pièce d'horlogerie |
| EP2397921B1 (fr) * | 2010-06-17 | 2017-08-30 | Blancpain S.A. | Mécanisme d'avance par saut périodique d'une cage de carrousel |
| WO2013104634A1 (fr) * | 2012-01-10 | 2013-07-18 | Lvmh Swiss Manufactures Sa | Mouvement de montre a tourbillon pour chronographe |
| EP3382468B1 (fr) * | 2017-03-30 | 2020-01-15 | The Swatch Group Research and Development Ltd | Mouvement avec prolongateur de réserve de marche |
| CH714810A2 (fr) * | 2018-03-20 | 2019-09-30 | Tec Ebauches S A | Mouvement d’horlogerie comportant un système réglant du type tourbillon et pièce d’horlogerie comportant un tel mouvement. |
| EP3818417B1 (fr) * | 2018-07-02 | 2025-09-03 | Greubel Forsey S.A. | Mecanisme d'echappement horloger |
-
2021
- 2021-06-30 EP EP21182792.8A patent/EP4113215A1/fr not_active Withdrawn
-
2022
- 2022-06-29 EP EP22735910.6A patent/EP4363932B1/fr active Active
- 2022-06-29 CN CN202280045992.2A patent/CN117581165A/zh active Pending
- 2022-06-29 WO PCT/EP2022/067973 patent/WO2023275184A1/fr not_active Ceased
- 2022-06-29 JP JP2023581013A patent/JP2024524482A/ja active Pending
- 2022-06-29 US US18/575,249 patent/US20240329599A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN117581165A (zh) | 2024-02-20 |
| EP4113215A1 (fr) | 2023-01-04 |
| WO2023275184A1 (fr) | 2023-01-05 |
| JP2024524482A (ja) | 2024-07-05 |
| EP4363932B1 (fr) | 2025-07-09 |
| US20240329599A1 (en) | 2024-10-03 |
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