Three-dimensional carousels for a timepiece movement

Abstract

The invention relates to a three-dimensional escapement for a timepiece movement comprising a driving device provided with a barrel and a gear train, the three-dimensional escapement comprising an inertial mass, an elastic return device and an escapement mechanism, wherein the three-dimensional escapement comprises an inner carrier and an outer carrier, the inner carrier carrying the inertial mass, the elastic return device and the escapement mechanism, the inner carrier being rotatable about a first axis of rotation, the outer carrier being rotatable about a second axis of rotation, the inner carrier being housed inside the outer carrier, the driving device being configured to actuate the rotation of the outer carrier in parallel with the rotation of the inner carrier, a first portion of the torque provided by the driving device being transmitted to the outer carrier, a second portion of the torque being transmitted to the inner carrier, the driving device being further configured to actuate the escapement mechanism in parallel with the rotation of the outer carrier and in parallel with the rotation of the inner carrier, a third portion of the torque provided by the driving device being transmitted to the escapement mechanism. The invention also relates to a timepiece movement comprising such a three-dimensional escapement.

Description

Technical Field

[0001] This invention relates to the field of tourbillon or carousel-type regulating components for watch movements. Background Technology

[0002] Most modern mechanical watches are equipped with a regulating mechanism, which includes a balance wheel and hairspring mechanism and a Swiss lever escapement. The balance wheel and hairspring mechanism constitute the watch's time base. It is also known as a resonator.

[0003] The escapement mechanism has two main functions:

[0004] - Maintain the reciprocating motion of the resonator;

[0005] - Count these reciprocating motions.

[0006] To construct a mechanical resonator, an inertial mass, a guide element, and a resilient restoring element are required. Typically, a hairspring serves as the resilient restoring element for the inertial mass, for example, a balance wheel. This balance wheel is guided to rotate by a pivot that rotates within a ruby ​​sliding bearing.

[0007] To reduce the adverse effects of gravity on the movement of the regulating mechanism, complex mechanisms such as tourbillons or carousels have been developed to cause the regulating component assembly to rotate about a rotational axis. The regulating mechanism is housed in a rotating carriage that rotates continuously around the axis. These complex mechanisms also possess a unique aesthetic appeal, making this timepiece extremely attractive.

[0008] In a tourbillon, the escapement and the carriage rotation mechanism are arranged sequentially. Generally, the mechanism that drives the movement actuates the carriage to rotate, and the rotation of the carriage in turn drives the escapement. The escapement engages with the stationary wheel of the movement to be actuated.

[0009] The carousel operates on a different principle because the actuation of the carriage rotation and the escapement are generated in parallel by a drive mechanism. These two movements are independent of each other. Therefore, unlike the tourbillon, the carriage can continue to rotate even when the escapement is stopped.

[0010] To prevent the carriage from spinning freely when the spring box is unloaded, the carousel includes a retaining gear system that stops the carriage if the escapement is stopped.

[0011] To further improve the accuracy of the speed regulating mechanism relative to gravity, three-dimensional tourbillons have been developed. Such tourbillons include at least two carriers that rotate about at least two axes of rotation, preferably perpendicular to each other.

[0012] However, the carrier configuration used for a three-dimensional tourbillon is not suitable for a carousel, due to the specific configuration and operation of the carousel, particularly the parallel actuation of the rotation of the carrier and the escapement. Therefore, a three-dimensional carousel does not actually exist. Summary of the Invention

[0013] The purpose of this invention is to overcome the above-mentioned defects and to provide a watch movement including a three-dimensional carousel.

[0014] Therefore, the present invention relates to a three-dimensional carousel for a watch movement, the watch movement including a drive device having a mainspring barrel and a gear train, the three-dimensional carousel including an inertial mass, an elastic reset device for the inertial mass, and an escapement mechanism.

[0015] The three-dimensional carousel is characterized in that it includes an inner bracket and an outer bracket, the inner bracket carrying an inertial mass, an elastic reset device for the inertial mass, and an escapement mechanism, the inner bracket being rotatable about a first rotation axis, the outer bracket being rotatable about a second rotation axis different from the first rotation axis, the inner bracket being housed inside the outer bracket, a drive device configured to actuate the rotation of the outer bracket in parallel with the rotation of the inner bracket, a first portion of the torque provided by the drive device being transmitted to the outer bracket, and a second portion of the torque being transmitted to the inner bracket, the drive device also being configured to actuate the escapement mechanism in parallel with the rotation of the outer bracket and in parallel with the rotation of the inner bracket, wherein a third portion of the torque provided by the drive device is transmitted to the escapement mechanism.

[0016] Therefore, a carousel is obtained by actuating the escapement mechanism, the outer bracket, and the inner bracket in parallel with the drive mechanism.

[0017] More specifically, according to a carousel, the actuation of the escapement, the actuation of the outer bracket, and the actuation of the inner bracket are independent of each other. A first portion of the torque provided by the drive mechanism is transmitted to the outer bracket, a second portion of the torque is transmitted for the rotational movement of the inner bracket, and a third portion of the torque is transmitted to the escapement.

[0018] Furthermore, the carousel is three-dimensional because the inner and outer brackets are capable of rotational motion about two different axes of rotation.

[0019] According to a specific embodiment of the invention, the drive device includes a seconds driving crown arranged about a second rotation axis around the outer bracket, preferably about the outer bracket, the seconds driving crown being configured to transmit a first portion and a second portion of the torque provided by the drive device to the outer bracket and the inner bracket in parallel.

[0020] According to one specific embodiment of the invention, the rotation of the second drive crown wheel also causes the escapement mechanism to be actuated in parallel with the rotation of the outer and inner brackets.

[0021] According to a specific embodiment of the present invention, the three-dimensional carousel includes a bracket drive wheel assembly carried by an outer bracket or an inner bracket, the bracket drive wheel assembly being rotatable relative to the outer bracket and the inner bracket, the rotation of the bracket drive wheel assembly actuating the rotational motion of the inner bracket and the escapement mechanism in parallel.

[0022] According to a specific embodiment of the present invention, the second drive crown wheel meshes with the bracket drive wheel pair.

[0023] According to a specific embodiment of the present invention, the escapement mechanism includes an escape wheel, an escape pinion, and an intermediate wheel meshing with the escape pinion, and the bracket drive wheel pair meshes with the intermediate wheel of the escapement mechanism.

[0024] According to a specific embodiment of the present invention, the three-dimensional carousel includes a first retaining gear train for retaining the inner bracket, the first retaining gear train being arranged inside the inner bracket to engage with the intermediate wheel of the escapement mechanism and with a wheel integral with the outer bracket to prevent the inner bracket from rotating at an excessively fast speed.

[0025] According to a specific embodiment of the present invention, the three-dimensional carousel includes a second retaining gear train for retaining the outer bracket, the second retaining gear train being arranged outside the outer bracket to engage with the second drive crown wheel and the outer bracket to prevent the outer bracket from rotating at too high a speed.

[0026] According to a specific embodiment of the present invention, the second drive crown wheel includes two teeth, the first tooth meshing with the bracket drive wheel pair, and the second tooth meshing with the second retaining gear system.

[0027] According to a specific embodiment of the invention, the three-dimensional carousel includes a first ball bearing arranged to allow the outer bracket to rotate.

[0028] According to a specific embodiment of the invention, the three-dimensional carousel includes a second ball bearing arranged to enable the second drive crown wheel to rotate.

[0029] According to a specific embodiment of the present invention, the outer bracket includes an annular upper portion and an annular lower portion rigidly connected to each other. The annular upper portion supports the inner bracket by at least one bearing, preferably two bearings, and the annular lower portion is provided with external teeth.

[0030] According to a specific embodiment of the present invention, the inner bracket includes an upper support and a lower support, wherein an inertial mass, an elastic reset device for the inertial mass, and an escapement mechanism are suspended between the upper support and the lower support.

[0031] According to a specific embodiment of the present invention, the rotational speed of the inner bracket is greater than that of the outer bracket.

[0032] According to a specific embodiment of the present invention, the first axis of rotation is substantially perpendicular to the second axis of rotation.

[0033] The present invention also relates to a watch movement comprising such a three-dimensional carousel. Attached Figure Description

[0034] The objects, advantages, and features of the present invention will become apparent from the accompanying drawings, which are provided for illustrative purposes only and are not intended to limit the scope of the invention.

[0035] - Figure 1 A schematic top view is shown of a portion of a watch movement including a three-dimensional carousel according to the invention.

[0036] - Figure 2 A general overview Figure 1 A perspective view of the watch movement.

[0037] - Figure 3 A perspective top view of a portion of a three-dimensional calomel according to the invention is shown schematically.

[0038] - Figure 4 A perspective bottom view of a portion of a three-dimensional calomel according to the invention is shown schematically.

[0039] - Figure 5 A schematic top view of a portion of a three-dimensional calotype according to the invention is shown.

[0040] - Figure 6 A perspective top view of a portion of a three-dimensional calomel according to the invention is shown schematically.

[0041] - Figure 7 A perspective top view of a portion of a three-dimensional calomel according to the invention is shown schematically.

[0042] - Figure 8 A schematic perspective top view of the outer bracket of the three-dimensional calosur according to the invention is shown. Detailed Implementation

[0043] The present invention relates to a three-dimensional carousel 1 and a watch movement 10 including such a three-dimensional carousel 1. The watch movement 10 includes a plate (not shown), which preferably extends substantially in a plane and is configured to support the various components of the movement 10.

[0044] exist Figure 1 and 2The movement 10 shown in the middle section also includes a drive unit 15, which includes a mainspring barrel 7 and a gear train 13. The gear train 13 is used to actuate the movement of a pointer (not shown) and to transmit the driving force provided by the spring of the mainspring barrel 7 to the three-dimensional carousel 1.

[0045] The three-dimensional carousel 1 is a speed regulating component, which includes an inertial mass 6, a guide, and a resilient reset element 4 for the inertial mass 6. The resilient reset element 4 is configured to cause the inertial mass 6 to oscillate substantially within a plane. The three-dimensional carousel also includes an escapement 5 that cooperates with the inertial mass 6. The resilient reset element 4 is, for example, a hairspring, and the inertial mass 6 is a ring-shaped balance wheel associated with the hairspring to perform oscillating motion. The escapement 5 is, for example, a conventional escapement that includes an escape wheel 25, an escape fork 26, and an intermediate wheel 19. The escape wheel 25 cooperates with the escape fork 26 to rotate intermittently at a predetermined frequency. Due to the motion of the balance wheel and the impact of the escape wheel 25, the escape fork 26 can move.

[0046] In the following description, drive unit 15 refers to the components used to supply and transmit the energy required for the operation of the three-dimensional caloster 1.

[0047] This invention does not specifically relate to the inherent features and operation of simple carousels known to those skilled in the art.

[0048] Figures 1 to 8 Specifically, a three-dimensional carousel 1 is shown. The three-dimensional carousel 1 includes an inner bracket 2, in which a mechanical resonator and an escapement mechanism 5 with a Swiss-anchored escapement fork 26 are arranged. The mechanical resonator has an inertial mass 6, a guide, and an elastic reset element 4.

[0049] The inner bracket 2 includes an upper support 8 and a lower support 9, which are assembled to the intermediate structure 57 by screws 11 inserted into the column 12. There are two screws for the upper support 8 and three screws for the lower support 9. A mechanical resonator, equipped with an inertial mass 6, a guide, and an elastic reset element 4, is suspended between the upper support 8 and the intermediate structure 57, while the escapement mechanism 5 is suspended between the intermediate structure 57 and the lower support 9.

[0050] The lower support member 9 includes a frame 14 having multiple segments 23 that are interconnected to form joints supporting the bearings and columns 12 supporting the mechanical elements inside the inner bracket 2.

[0051] The inertial mass 6 is arranged on a first spindle located inside the inner bracket 2. The first spindle is substantially perpendicular to the plane of the inertial mass 6.

[0052] The balance wheel is located in the upper part of the inner bracket 2 so that it is visible from the outside. The balance wheel is configured to rotate and oscillate inside the inner bracket 2 at a predetermined frequency around a first axis.

[0053] To actuate the mechanical resonator, a second spindle 17, substantially parallel to the first spindle, is arranged inside the inner bracket. An intermediate wheel 19 is integral with the second spindle 17. The intermediate wheel 19 meshes with an escapement pinion 21 arranged on a third spindle 22, substantially parallel to the first and second spindles 17. The third spindle 22 is also arranged inside the inner bracket 2. The third spindle 22 also supports an escape wheel 25, which is positioned above the escapement pinion 21. The escape wheel 25 cooperates with a Swiss-anchored escape fork 26, which is arranged perpendicular to the periphery of the escape wheel 25. The escape fork 26 includes an elongated body with a fork head at a first end, the fork head being configured to engage with a pin on the first spindle, the pin engaging with the movement of the balance wheel. The second end of the escape fork 26 includes two pallets arranged to engage with the escape wheel 25, alternately stopping the rotation of the escape wheel 25 to allow the escape wheel 25 to rotate in a stepwise manner. The escapement fork 26 is supported by a fourth spindle 27 located inside the inner bracket 2.

[0054] The inner bracket 2 is mounted such that it rotates within the outer bracket 3 about a first axis of rotation D1. The inner bracket 2 includes two pivots 42 and 43, each pivot 42 and 43 cooperating with bearings 39 and 41 of the outer bracket 3, respectively, arranged along the axis of rotation D1 of the inner bracket. Each bearing 39 and 41 includes a hole for inserting a pivot 42 or 43. The two pivots 42 and 43 are rotatable within each bearing 39 or 41. Therefore, the first axis of rotation D1 of the inner bracket 2 passes through the outer bracket 3.

[0055] The outer bracket 3 includes an annular upper portion 24 and an annular lower portion 28, which are rigidly connected to each other by a column 31. The upper portion 24 carries the inner bracket 2 by means of bearings 39, 41 arranged facing each other. The lower portion 28 is provided with peripheral external teeth 32 for actuating the rotation of the outer bracket 3.

[0056] The three-dimensional carousel 1 includes a first ball bearing 33 arranged to allow the outer bracket 3 to rotate. The first ball bearing 33 is, for example, pressed into a platen or bar clamp (not shown). The first ball bearing 33 is arranged laterally around the lower portion 28. The first ball bearing 33 includes a ring fixed relative to the platen, which holds the balls against the lower portion 28.

[0057] The outer bracket 3 is capable of rotating about the second rotation axis D2. The inner bracket 2 and the outer bracket 3 are actuated by the drive device 15 of the watch movement.

[0058] According to the present invention, the rotation of the outer bracket 3 is generated by the drive device 15 in parallel with the rotation of the inner bracket 2. Furthermore, the drive device 15 is configured to actuate the escapement mechanism 5 in parallel with the rotational movement of the outer bracket 3 and in parallel with the rotational movement of the inner bracket 2.

[0059] To actuate the carriers 2 and 3 and the escapement 5, the three-dimensional carousel 1 includes a carrier drive wheel assembly 30 arranged and centered about a first axis of rotation D1. The carrier drive wheel assembly 30 includes a carrier drive pinion 34 and a carrier drive wheel 35. The carrier drive wheel assembly 30 is carried by the inner carrier 2. The carrier drive wheel assembly 30 is arranged near the inner side of the first bearing 39 about a pivot 42 of the inner carrier 2 and is located between the inner carrier 2 and the outer carrier 3. The carrier drive pinion 34 is arranged towards the outer side of the outer carrier 3, and the carrier drive wheel 35 is arranged towards the inner side of the outer carrier 3. The carrier drive wheel assembly 30 is mounted such that it can rotate freely relative to the inner carrier 2 and relative to the outer carrier 3. In other words, the carrier drive wheel 35 and the carrier drive pinion 34 are not integral with the outer carrier 3 and the inner carrier 2. They are able to rotate freely, while the carrier drive pinion 34 and the carrier drive wheel 35 are integral with each other, specifically rotating integrally.

[0060] The carrier drive wheel 35 engages with the intermediate wheel 19 of the escapement mechanism 5. Therefore, the movement of the escape wheel 25, escape fork 26, and balance wheel is actuated via the intermediate wheel 19 and the escape pinion 21, which rotates the third spindle 22. To actuate the escapement mechanism 5, the carrier drive pinion 34 is engaged.

[0061] For this purpose, the three-dimensional carousel 1 includes a second-driven crown wheel 20 arranged such that it can rotate about a second axis of rotation D2 of the outer bracket 3, preferably about the outer bracket 3 itself. The second-driven crown wheel 20 has the shape of a ring including a first upper tooth portion 36 and a second peripheral tooth portion 37. The first upper tooth portion 36 includes upward-facing teeth throughout the ring. The second peripheral tooth portion 37 includes outward-facing teeth around the entire ring.

[0062] When the seconds drive crown wheel 20 rotates, the upper toothed portion 36 drives the bracket to drive the pinion 34, which is located on the outside of the outer bracket 3. Therefore, the seconds drive crown wheel 20 drives the intermediate wheel 19 of the escapement mechanism 5 via the bracket drive wheel 35 of the bracket drive wheel pair 30.

[0063] Alternatively, according to an alternative embodiment not shown, the second drive crown wheel is arranged inside the outer bracket, preferably between the two brackets.

[0064] The three-dimensional carousel 1 includes a second ball bearing 38, which is arranged to enable the second drive crown wheel 20 to rotate. The second ball bearing 38 is arranged along the entire ring below the second drive crown wheel. The second ball bearing is, for example, pressed into a platen or bar clamp (not shown in the figure).

[0065] In this embodiment, the first ball bearing 33 and the second ball bearing 38 are stacked, with the second ball bearing 38 positioned above the first ball bearing 33. The first ball bearing 33 includes a first circumferential ring 55, and the second ball bearing 38 includes a second circumferential ring 56, which is assembled together with the first circumferential ring 55.

[0066] The seconds drive crown wheel 20 is driven by the drive unit 15 via the gear train 13 of the gear system. Therefore, the rotation of the seconds drive crown wheel 20 actuates the escapement 5, as well as the inner and outer brackets 2 and 3, due to the torque provided by the drive unit 15. The seconds drive crown wheel 20 transmits torque to the inner and outer brackets 2 and 3, and to the escapement 5.

[0067] The first part of the torque is transmitted to the outer bracket 3 to rotate it about the second rotation axis D2, the second part of the torque is transmitted to the inner bracket 2 to rotate it about the first rotation axis D1, and the third part of the torque is transmitted to the escapement mechanism to actuate the escape wheel 25.

[0068] The first part of the torque is applied to the pivot 42 of the bracket drive wheel assembly 30, causing the outer bracket 3 to rotate about the second axis of rotation D2.

[0069] The second part of the torque is applied to the intermediate wheel 19 of the escapement mechanism 5 via the bracket drive wheel pair 30, causing the inner bracket 2 to rotate.

[0070] Therefore, the drive unit 15 is configured to actuate the rotation of the outer bracket 3 in parallel with the rotation of the inner bracket 2. However, the rotation of the outer bracket 3 is not inextricably linked to the rotation of the inner bracket 2. Therefore, if the rotation of the inner bracket 2 is stopped, the outer bracket 3 can continue to rotate.

[0071] A third portion of the torque is applied to the escape wheel 25 via the intermediate wheel 19 of the escapement mechanism 5 and the carrier drive wheel assembly 30. The intermediate wheel 19 thus pivots about itself and drives the escapement mechanism 5.

[0072] Therefore, the drive unit 15 is further configured to actuate the escapement mechanism 5 in parallel with the rotational movement of the outer bracket 3 and in parallel with the rotational movement of the inner bracket 2. More specifically, the intermediate wheel 19 distributes torque on one hand to the escape wheel 25 and on the other hand to the wheel 45 of the first retaining gear train 40 described below, which constrains the rotation of the inner bracket 2. However, the rotation of the inner bracket 2 is not inextricably linked to the rotation of the escape wheel 25. Therefore, if the escape wheel 25 is stopped, the inner bracket 2 can continue to rotate.

[0073] However, when the escape wheel 25 is stopped by the escape fork 26, the second and third portions of the torque are only transmitted to the inner carriage 2. More specifically, when the intermediate wheel 19 is stopped, the third portion of the torque applied to the escape wheel 25 is at least partially transmitted to the inner carriage 2. In this configuration, the inner carriage 2 will continue to rotate until the mainspring barrel 7 is completely depleted of energy.

[0074] To control the rotational speed of the inner bracket 2 and prevent it from rotating freely, the three-dimensional carousel 1 includes a first retaining gear train 40 for holding the inner bracket 2. The first retaining gear train 40 is arranged inside the inner bracket 2 to engage with the intermediate wheel 19 of the escapement mechanism 5 and with a wheel 44 integral with the outer bracket. The wheel 44 integral with the outer bracket is movable together with the outer bracket 3. The wheel 44 integral with the outer bracket is mounted on a second bearing 41 of the outer bracket 3 to be aligned with and perpendicular to the first axis of rotation D1.

[0075] The wheel 44, which is integrated with the outer bracket, is used to constrain the rotation of the inner bracket 2, preventing the inner bracket 2 from rotating as it would in a tourbillon.

[0076] The first retaining gear train 40 includes two meshing gear pairs. The first gear pair 45 meshes with the intermediate gear 19 of the escapement mechanism 5, and the second gear pair 46 meshes with the gear 44, which is integrated with the outer bracket. The two gear pairs 45 and 46 are each mounted on different spindles 53 and 54, respectively, inside the inner bracket 2, and located between the intermediate structure 57 and the lower support member 9.

[0077] The first retaining gear train 40 prevents the inner bracket 2 from rotating freely. More specifically, the first retaining gear train 40 is stopped by the intermediate wheel 19, which is held by the escape wheel 25, which is stopped by the escape fork 26. However, they are configured to rotate at a predetermined speed corresponding to the second portion of the torque when the escape wheel 25 is released from the escape fork 26. In this case, the second gear train 46 of the first retaining gear train 40 rotates about the wheel 44 integral with the outer bracket, allowing the inner bracket 2 to rotate about the first axis D1.

[0078] When the escapement 5 is stopped by the escape fork 26 and the inner carriage 2 cannot rotate due to the first retaining gear train 40, all torque is applied to the pivot 42 of the carriage drive wheel assembly 30. In this configuration, the outer carriage 3 will continue to rotate until the mainspring barrel 7 is completely depleted of energy.

[0079] To control the rotation of the outer bracket 3 and prevent it from rotating freely, the three-dimensional carousel 1 includes a second retaining gear train 50 for holding the outer bracket 3. The second retaining gear train 50 is arranged on the outside of the outer bracket 3 so as to mesh with the second drive crown wheel 20 and the outer bracket 3.

[0080] The second retaining gear system 50 includes a first gear 47 that meshes with the second peripheral teeth of the second drive crown wheel 20, and a second gear 48 that meshes with the peripheral external teeth of the lower portion of the outer bracket 3. The first gear 47 and the second gear 48 are connected by a connecting gear pair 49, which is provided with a pinion 51 and a third gear 52. The third gear 52 meshes with the first gear 47, and the pinion 51 meshes with the second gear 48. The second retaining gear system 50 prevents the outer bracket 3 from rotating faster than intended. The second retaining gear system 50 connects the rotation of the outer bracket 3 to the second drive crown wheel 20.

[0081] When all torque is applied to the rotation of the outer bracket 3, the second retaining gear system stops the rotation of the outer bracket 3.

[0082] Therefore, when the escape wheel 25 is alternately stopped by the escape fork 26, not only is the rotation of the inner bracket 2 temporarily stopped, but the rotation of the outer bracket 3 is also temporarily stopped.

[0083] When the first retaining gear train 40 and the intermediate gear 19 are stopped, the bracket drive wheel assembly 30 can no longer pivot about itself. In addition, the second retaining gear train 50 stops the rotation of the outer bracket 3 because they prevent the second drive crown wheel 20 from rotating.

[0084] One advantage of the three-dimensional carousel 1 according to the invention is that different rotational speeds can be easily selected and adjusted for the inner bracket 2 and the outer bracket 3.

[0085] The rotational speeds of the inner bracket 2 and the outer bracket 3 depend on the size and number of teeth of the second drive crown wheel 20, the bracket drive wheel pair 30, the first retaining gear train 40, and the second retaining gear train 50.

[0086] The rotational speed of the inner bracket 2 is determined by the rotational speed of the second-drive crown wheel 20 and the first retaining gear train 40. The rotational speed of the outer bracket 3 is determined by the speed of the second-drive crown wheel 20 and the second retaining gear train 50. It depends in particular on the number of teeth in the first retaining gear train 40 and the second retaining gear train 50 used for each bracket 2 and 3, respectively.

[0087] In a specific example, the outer bracket 3 rotates once per minute, the inner bracket 2 rotates one and a half times per minute, and the second drive crown wheel 20 also rotates one and a half times per minute.

[0088] It goes without saying that the present invention is not limited to the embodiments of the three-dimensional calotype described with reference to the accompanying drawings, and alternatives may be considered without departing from the scope of the invention.

Claims

1. A three-dimensional carousel (1) for a watch movement (10), the watch movement (10) comprising a drive mechanism (15) having a mainspring barrel (7) and a gear train (13), the three-dimensional carousel (1) comprising an inertial mass (6), an elastic reset mechanism (4) for the inertial mass (6), and an escapement mechanism (5), characterized in that, The three-dimensional carousel (1) includes an inner bracket (2) and an outer bracket (3). The inner bracket (2) carries the inertial mass (6), an elastic reset device for the inertial mass (6), and the escapement mechanism (5). The inner bracket (2) is rotatable about a first rotation axis (D1), and the outer bracket (3) is rotatable about a second rotation axis (D2). The inner bracket (2) is housed inside the outer bracket (3). The drive device (15) is configured to actuate the carousel mechanism (5) in parallel. The rotational movement of the inner bracket (2) and the rotational movement of the outer bracket (3), a first portion of the torque provided by the drive device is transmitted to the outer bracket (3), and a second portion of the torque is transmitted to the inner bracket (2), the drive device (15) is also configured to actuate the escapement mechanism (5) in parallel with the rotational movement of the outer bracket (3) and in parallel with the rotational movement of the inner bracket (2), wherein a third portion of the torque provided by the drive device (15) is transmitted to the escapement mechanism (5).

2. The three-dimensional carousel according to claim 1, characterized in that, The drive unit (15) includes a second drive crown wheel (20) arranged around a second rotation axis (D2) of the outer bracket (3), the second drive crown wheel (20) being configured to transmit a first portion and a second portion of the torque provided by the drive unit (15) to the outer bracket (3) and the inner bracket (2) in parallel.

3. The three-dimensional calotype according to claim 2, characterized in that, The rotation of the second drive crown wheel (20) also causes the escapement mechanism (5) to be actuated in parallel with the rotation of the outer bracket (3) and the rotation of the inner bracket (2).

4. The three-dimensional calotype according to claim 3, characterized in that, The three-dimensional carousel includes a bracket drive wheel assembly (30) carried by the outer bracket (3) or the inner bracket (2), the bracket drive wheel assembly (30) being able to rotate freely relative to the outer bracket (3) and the inner bracket (2), the rotation of the bracket drive wheel assembly (30) actuating the rotational motion of the inner bracket (2) and the escapement mechanism (5) in parallel.

5. The three-dimensional calotype according to claim 4, characterized in that, The second drive crown wheel (20) meshes with the bracket drive wheel pair (30).

6. The three-dimensional carousel according to claim 4 or 5, characterized in that, The escapement mechanism includes an escape wheel (25), an escape pinion (21), and an intermediate wheel (19) meshing with the escape pinion (21). The bracket drive wheel assembly (30) meshes with the intermediate wheel (19) of the escapement mechanism (5).

7. The three-dimensional calotype according to claim 6, characterized in that, The three-dimensional carousel includes a first retaining gear train (40) for retaining the inner bracket (2), the first retaining gear train (40) being arranged inside the inner bracket (2) to mesh with the intermediate wheel (19) of the escapement mechanism (5) and the wheel (44) integral with the outer bracket (3) to prevent the inner bracket (2) from rotating at too high a speed.

8. The three-dimensional calotype according to claim 7, characterized in that, The three-dimensional carousel includes a second retaining gear train (50) for holding the outer bracket (3), the second retaining gear train (50) being arranged outside the outer bracket (3) to mesh with the second drive crown wheel (20) and the outer bracket (3) to prevent the outer bracket (3) from rotating at too high a speed.

9. The three-dimensional carousel according to claim 8, characterized in that, The second drive crown wheel (20) includes two teeth, wherein the first tooth (36) meshes with the bracket drive wheel pair (30), and the second tooth (37) meshes with the second retaining gear system (50).

10. The three-dimensional carousel according to any one of claims 2-5, characterized in that, The three-dimensional carousel includes a first ball bearing (33) arranged to enable the outer bracket (3) to rotate.

11. The three-dimensional carousel according to claim 10, characterized in that, The three-dimensional carousel includes a second ball bearing (38) arranged to enable the second drive crown wheel (20) to rotate.

12. The three-dimensional carousel according to any one of claims 1-5, characterized in that, The outer bracket (3) includes an annular upper portion (24) and an annular lower portion (28) rigidly connected to each other. The annular upper portion (24) supports the inner bracket (2) by at least one bearing (41), and the annular lower portion (28) is provided with an external tooth (32).

13. The three-dimensional carousel according to any one of claims 1-5, characterized in that, The inner bracket (2) includes an upper support (8) and a lower support (9), wherein the inertial mass (6), the elastic reset device (4) for the inertial mass (6) and the escapement mechanism (5) are suspended between the upper support (8) and the lower support (9).

14. The three-dimensional carousel according to any one of claims 1-5, characterized in that, The rotational speed of the inner bracket (2) is greater than that of the outer bracket (3).

15. The three-dimensional carousel according to any one of claims 1-5, characterized in that, The first axis of rotation (D1) is substantially perpendicular to the second axis of rotation (D2).

16. A watch movement, comprising a mainplate and a drive mechanism, characterized in that, The watch movement includes a three-dimensional carousel (1) according to any one of the preceding claims.

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