Actuation mechanism of flexible display hand driven by a clockwork movement

Abstract

This invention relates to an actuation mechanism for a flexible pointer, wherein a watch movement applies a first angular rotation (θ1) to the actuation mechanism. The flexible pointer includes first and second drive sleeves connected to the tip of the flexible pointer via first and second flexible arms. The first drive sleeve is provided with a first tooth, and the second drive sleeve is provided with a second tooth. The first and second drive sleeves are mounted such that the first tooth of the first drive sleeve meshes with the second tooth of the second drive sleeve at the force-bearing position of the flexible pointer. The angular rotation (θ1) applied to the actuation mechanism by the watch movement is modulated by the actuation mechanism by a certain rotation angle. The rotation angle is applied in opposite directions to the first and second flexible arms of the flexible pointer through the meshing of the first tooth of the first drive sleeve and the second tooth of the second drive sleeve, and determines the change in the shape and length of the flexible pointer.

Description

Technical Field

[0001] The subject of this invention is an actuation mechanism for a flexible pointer, which is driven by a watch movement and arranged to display information in an analog manner. Specifically, the subject of this invention is a simplified actuation mechanism for a flexible display pointer. Background Technology

[0002] Flexible hands are known to follow the outer periphery of a dial as closely as possible with their tips by changing their length and shape in a desired manner, in order to display information, such as the current time, in an analog manner, where the dial is not circular but has an oval shape.

[0003] One embodiment of this flexible pointer is disclosed in the applicant's European patent application EP 2863274A1, which is shown in Figure 1 attached to this patent application. The flexible pointer 1 includes a first drive sleeve 2 connected to a first end of a first flexible arm 4 and a second drive sleeve 6 connected to a first end of a second flexible arm 8. At the second ends of the first and second flexible arms 4 and 8, the first and second flexible arms 4 are connected to each other at a tip 10. In the unstressed free state of the flexible pointer 1, the first drive sleeve 2 and the second drive sleeve 6 are spaced apart from each other. Conversely, the operating position in which the flexible pointer 1 has a defined shape and length is a stressed position, in which the first drive sleeve 2 and the second drive sleeve 6 are arranged coaxially about a common output axis D. In this stressed position, the first drive sleeve 2 is mounted at a defined first prestress angle, and the second drive sleeve 6 is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve 2. The flexible pointer 1 is arranged such that when the angular position of the second drive sleeve 6, which pivots around the output axis D, changes relative to the angular position of the first drive sleeve 2, the flexible pointer 1 changes its shape and length in a desired manner. For this purpose, each of the first flexible arm 4 and the second flexible arm 8 of the flexible pointer 1 performs an angular rotation θ1, which is applied to the flexible pointer 1 by the watch movement to display information. This angular rotation θ1 applied to the flexible pointer 1 by the watch movement is achieved by the actuation mechanism 12 by a rotation angle. Further modulation of this rotation angle The first flexible arm 4 and the second flexible arm 8 are applied in opposite directions to the flexible pointer 1, which determines the changes in the shape and length of the flexible pointer 1.

[0004] An embodiment of the actuation mechanism of the above-mentioned type of flexible pointer is disclosed in the European patent application EP 3764170 A1 under the applicant's name.

[0005] This example is given by way of illustration only in conjunction with Figure 1 attached to this patent application and is not intended to be limiting. The actuation mechanism, generally indicated by general reference numeral 12, includes a first drive unit 14 surrounding a first drive sleeve 2 about an output axis D, and a second drive unit 16 surrounding a second drive sleeve 6 about the same output axis D. The first drive unit 14 and the second drive unit 16 are arranged such that the first flexible arm 4 and the second flexible arm 8 are deformed by changing the angular position of the second drive sleeve 6 relative to the first drive sleeve 2 about the output axis D, and the radial position of the tip 10 relative to the output axis D is changed.

[0006] More specifically, the actuation mechanism 12 includes a planetary gear retaining frame 18, on which a first pivot 20 is provided, and planetary gears 22 are rotatably mounted. Each planetary gear 22 is equipped with a cam-following finger 24 arranged to travel along a profile 26 of a cam 28 and is elastically held against this profile by the flexible pointer 1. The cam 28 is the only fixed element of the actuation mechanism 12. The planetary gear retaining frame 18 also includes a tube 30 on which a first drive gear shaft 32 and a second drive gear shaft 34 are concentrically mounted and rotatably mounted. The first drive sleeve 2 of the flexible pointer 1 is press-fitted onto the second drive gear shaft 34 at a defined prestress angle, while the second drive sleeve 6 of the same flexible pointer 1 is press-fitted onto the first drive gear shaft 32 at the same prestress angle but in the opposite direction to the first drive sleeve 2. Finally, the actuation mechanism 12 includes a first sun pinion 36 and a second sun pinion 38. The first sun pinion 36 is formed by teeth carried by a first drive gear 32, and the second sun pinion 38 is formed by teeth carried by a second drive gear 34. When the planetary gear retainer 18 is rotated, for example clockwise, by the watch movement, it drives the planetary gear 22, which rotates on its own axis while following the contour 26 of the cam 28 using its cam follower finger 24. The first drive gear 32, which directly meshes with the planetary gear 22, therefore rotates relative to the planetary gear retainer 18. The second drive gear 34 rotates relative to the planetary gear retainer 18 at the same speed as the first drive gear 32, but in the opposite direction, because the rotation of the planetary gear 22 is transmitted to the second drive gear 34 through an idler / intermediate gear 40, which is rotatably mounted on a second pivot 42.

[0007] In order to move the flexible pointer 1 from the first position to the second position, in addition to rotating θ1, the actuation mechanism 12 also applies the same angle to each of the first drive sleeve 2 and the second drive sleeve 6 of the flexible pointer 1. However, the rotation is in the opposite direction. For this purpose, the actuation mechanism 12 is driven by a watch movement that applies a rotation of angle θ1 to the input end of the planetary gear retaining frame 18. As shown in Figure 2 attached to this patent application, this rotation of angle θ1 is converted by the actuation mechanism 12 into a rotation of angle α(θ1) of the first drive sleeve 2 of the flexible hand 1 and an angle β(θ1) of the second drive sleeve 6. The output angles α(θ1) and β(θ1) of the actuation mechanism therefore have the following relationship:

[0008]

[0009]

[0010] Assuming the flexible pointer 1 is symmetrical, the angular position θ2 of the tip 10 of the flexible pointer 1 is defined as the bisector of the first flexible arm 4 and the second flexible arm 8, that is, the average value of angles α(θ1) and β(θ1) according to the following relationship:

[0011]

[0012] As can be understood from the above, in order to allow the flexible hand 1 to change its shape and length in a desired manner, the watch movement applies a modulated angular rotation θ1 to each of the first drive sleeve 2 and the second drive sleeve 6 of the flexible hand 1 via the actuation mechanism 12, that is, by an angle Modulation is achieved by rotating in the same direction but in opposite directions.

[0013] The purpose of this invention is to provide a novel actuation mechanism for flexible pointers, which has a simpler design. Summary of the Invention

[0014] The subject of this invention is a simplified actuation mechanism for a flexible hand driven by a watch movement.

[0015] For this purpose, the present invention relates to an actuation mechanism for a flexible pointer, wherein a watch movement applies a first angular rotation to the actuation mechanism. The flexible pointer includes a first drive sleeve and a second drive sleeve connected to the tip of the flexible pointer by means of a first flexible arm and a second flexible arm, respectively. The first drive sleeve is provided with a first tooth, and the second drive sleeve is provided with a second tooth. When the flexible pointer is in a free state without force, the first and second drive sleeves are spaced apart from each other. The operating position in which the flexible pointer has a defined shape and length is a stressed position. In this stressed position, the first drive sleeve is mounted at a defined first prestress angle, and the second drive sleeve is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve. In a stress-angle mounting configuration, the first and second drive sleeves are arranged such that a first tooth of the first drive sleeve engages with a second tooth of the second drive sleeve at the stress position of the flexible pointer. The flexible pointer is arranged such that when the angular position of the second drive sleeve changes relative to the first drive sleeve by pivoting, the flexible pointer changes its shape and length in a desired manner. The angular rotation applied to the actuation mechanism by the watch movement is modulated by the actuation mechanism by a certain rotation angle, which is applied in opposite directions to the first and second flexible arms of the flexible pointer through the engagement of the first tooth of the first drive sleeve and the second tooth of the second drive sleeve, and determines the change in the shape and length of the flexible pointer.

[0016] According to a specific embodiment of the present invention, the actuation mechanism includes a planetary gear retaining frame to which a watch movement applies a first angular rotation. The planetary gear retaining frame is provided with fixed first and second tubes, on which first and second drive gear shafts pivot respectively. The actuation mechanism further includes a cam-following finger arranged to travel along the profile of a cam and held against the profile by means of the elasticity of the flexible hand. The cam is a fixed element of the actuation mechanism. The cam-following finger is arranged to travel along the profile of the cam such that the first angular rotation applied to the planetary gear retaining frame by the watch movement is further modulated by a certain rotation angle. The rotation angle is applied to the second flexible arm in the opposite direction by the meshing of the first tooth and the second tooth. The angle modulation determines the change in the shape and length of the flexible hand.

[0017] According to another embodiment of the present invention, one of the first and second drive gear shafts is equipped with the cam follower finger.

[0018] According to another embodiment of the invention, one of the first and second arms is equipped with the cam follower finger.

[0019] The present invention also relates to an actuation mechanism for a flexible pointer, wherein a watch movement applies a first angular rotation to the actuation mechanism. The flexible pointer includes a first drive sleeve and a second drive sleeve connected to the tip of the flexible pointer by means of a first flexible arm and a second flexible arm, respectively. The first drive sleeve is provided with a first tooth, and the second drive sleeve is provided with a second tooth. When the flexible pointer is in a free state without force, the first and second drive sleeves are spaced apart from each other. The operating position in which the flexible pointer has a defined shape and length is a stressed position. In this stressed position, the first drive sleeve is mounted at a defined first prestress angle, and the second drive sleeve is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve. The first and second drive sleeves are arranged such that... At the force-bearing position of the flexible pointer, the first tooth of the first drive sleeve engages with the second tooth of the second drive sleeve. The flexible pointer is arranged such that when the angular position of the second drive sleeve changes relative to the first drive sleeve by pivoting, the flexible pointer changes its shape and length in a desired manner. The watch movement applies the first angle rotation to a cam, and a stylus abuts against the cam. The stylus pivots at a certain angle under the rotation of the cam, the angle being a function of the first angle rotation applied to the cam by the watch movement. The pivoting of the stylus is applied to one of the first and second drive sleeves. The first or second drive sleeve to which the pivoting of the stylus is applied applies this pivoting in the opposite direction to the other drive sleeve, thereby causing the length of the flexible pointer to deform.

[0020] According to another embodiment of the present invention, the actuation mechanism includes a plurality of tubes fixed to a support member, the first and second drive gear shafts being rotatably mounted on the tubes, the first drive sleeve of the flexible pointer being press-fitted onto the first drive gear shaft at a defined prestress angle, and the second drive sleeve of the same flexible pointer being press-fitted onto the second drive gear shaft at the same prestress angle but in the opposite direction to the first drive sleeve, one of the first and second drive gear shafts carrying the contact rod abutting against a rotating cam.

[0021] The present invention also relates to a flexible pointer comprising a first drive sleeve and a second drive sleeve connected to the tip of the flexible pointer by means of a first flexible arm and a second flexible arm, respectively. The first drive sleeve is provided with a first tooth, and the second drive sleeve is provided with a second tooth. When the flexible pointer is in a free state without force, the first and second drive sleeves are spaced apart from each other. The flexible pointer is in a stressed position having a defined shape and length in an operating position. In this stressed position, the first drive sleeve is mounted at a defined first prestress angle, and the second drive sleeve is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve. The first and second drive sleeves are arranged such that the first tooth of the first drive sleeve engages with the second tooth of the second drive sleeve in the stressed position of the flexible pointer. The flexible pointer is arranged such that when the angular position of the second drive sleeve is changed relative to the first drive sleeve by pivoting, the flexible pointer changes its shape and length in a desired manner.

[0022] Through these features, the present invention provides a simplified actuation mechanism for flexible pointers. In fact, by applying a phase shift to one of the drive sleeves, the other drive sleeve is actuated in the opposite direction by teeth, allowing the length of the pointer to change without the pointer rotating. Another embodiment of the invention allows the length of the pointer to be changed by rotating the pointer itself using a simplified mechanism. Attached Figure Description

[0023] Further features and advantages of the invention will become apparent from the following detailed description of embodiments of the flexible pointer according to the invention, which are given by way of illustration only with reference to the accompanying drawings and are not intended to be limiting, in which:

[0024] - Figure 1, which has already been mentioned, is an exploded perspective view of an embodiment of the actuation mechanism of a prior art flexible pointer, which includes a differential device supported by a planetary gear retaining frame, wherein the first and second drive sleeves of the flexible pointer are coaxial around the first and second drive gear shafts.

[0025] - Figure 2, which has already been mentioned, depicts the rotation angle of the sleeve and the flexible hand so that the tip of the flexible hand travels at an angle θ1, which corresponds to the rotation applied by the watch movement at the input of the actuation mechanism;

[0026] - Figure 3 This is an exploded perspective view of an embodiment of the actuation mechanism of the flexible pointer according to the present invention;

[0027] - Figure 4 yes Figure 3An exploded perspective view of a particular embodiment of the actuation mechanism, wherein a cam follower finger is attached to one arm of a flexible pointer;

[0028] - Figure 5 This is an exploded perspective view of a specific embodiment of the actuation mechanism for a flexible hand, in which the watch movement applies an angular rotation θ1 to a cam;

[0029] - Figure 6A This is a plan view of the flexible pointer according to the invention in a free state without force, and the view also includes an enlarged view of the regions of the first and second drive sleeves;

[0030] - Figures 6B to 6D These are floor plans, each with its own operational position shown. Figure 6A An enlarged view of the flexible pointer in the operating position, where the flexible pointer has a defined shape and length that depends on the prestress angle at which the first and second drive sleeves are installed. The first and second drive sleeves are each provided with teeth that mesh with each other, such that when the angular position of the second drive sleeve changes relative to the first drive sleeve by pivoting, the flexible pointer gradually changes its shape and length in a desired manner. Detailed Implementation

[0031] This invention originates from the general inventive concept of providing a simplified actuation mechanism for transmitting angular rotation applied by a watch movement to a flexible hand. To this end, the invention teaches that both the first and second drive sleeves of the flexible hand are provided with teeth, such that the angular rotation applied to the first drive sleeve by the watch movement is transmitted to the second drive sleeve through the meshing of the teeth of the first drive sleeve and the teeth of the second drive sleeve. Therefore, the actuation mechanism is simplified by avoiding the need to apply the angular rotation provided by the watch movement to the first and second drive sleeves separately via an actuation mechanism.

[0032] Figure 3 This is an exploded perspective view of an embodiment of the actuation mechanism of a flexible pointer according to the present invention. The flexible pointer, generally indicated by general reference numeral 44, includes a first drive sleeve 46 connected to a first end of a first flexible arm 48 and a second drive sleeve 50 connected to a first end of a second flexible arm 52. At their second ends, the first flexible arm 48 and the second flexible arm 52 engage at a tip 54. Finally, the flexible pointer 44 is completed by adding a first tooth 56 and a second tooth 58 to each of the first drive sleeve 46 and the second drive sleeve 50, respectively. Figure 6A As shown, in the free state where the flexible pointer 44 is not under force, the first drive sleeve 46 and the second drive sleeve 50 are spaced apart from each other, and the first tooth 56 and the second tooth 58 are not engaged with each other. Conversely, when the flexible pointer 44 is in a state such as Figure 6BWhen in the operating position shown, it has a defined shape and length, wherein the first drive sleeve 46 is installed at a defined first prestress angle, and the second drive sleeve 50 is installed at a defined second prestress angle opposite to that of the first drive sleeve 46, the first drive sleeve 46 and the second drive sleeve 50 are arranged such that the first tooth 56 of the first drive sleeve 46 engages with the second tooth 58 of the second drive sleeve 50.

[0033] Regarding the actuation mechanism, which is generally indicated by the general reference numeral 60, it includes a planetary gear retaining frame 62 to which the watch movement applies a first angular rotation θ1.

[0034] The planetary gear retaining frame 62 is also provided with a first tube 64 and a second tube 66, on which the first drive gear shaft 68 and the second drive gear shaft 70 are pivotally mounted, respectively. The first drive sleeve 46 of the flexible pointer 44 is press-fitted onto the first drive gear shaft 68 at a defined prestress angle, while the second drive sleeve 50 of the same flexible pointer 44 is press-fitted onto the second drive gear shaft 70 at the same prestress angle but in the opposite direction to the first drive sleeve 46. One of the drive gear shafts 68 and 70, such as the first drive gear shaft 68, is equipped with a cam follower finger 72 arranged to travel along the profile 74 of the cam 76 and held against the profile by the elasticity of the flexible pointer 44. The cam 76 is a fixing element of the actuation mechanism 60. The first drive sleeve 46 and the second drive sleeve 50 are arranged such that the first tooth 56 and the second tooth 58 mesh with each other. When rotating, the first drive gear shaft 68 drives the first drive sleeve 46 to rotate, and the first drive sleeve 46 then drives the second drive sleeve 50 to rotate through the meshing of the first tooth 56 and the second tooth 58.

[0035] Understandably, when the watch movement applies an angular rotation θ1 to the planetary gear retaining frame 62, the planetary gear retaining frame 62 subsequently drives the first drive gear shaft 68 and the second drive gear shaft 70. The first drive gear shaft 68, while moving along the contour 74 of the cam 76 using its cam-driven finger 72, rotates together with the planetary gear retaining frame 62. This causes the angular rotation θ1 applied by the watch movement to the planetary gear retaining frame 62 and the flexible hand 44 to be rotated by the action of the cam-driven finger 72. It is further modulated. The rotation angle applied in opposite directions by the first flexible arm 48 to the second flexible arm 52 through the engagement of the first tooth 56 and the second tooth 58. The shape and length variations of the flexible pointer 44 were determined. In addition to rotation, the flexible pointer 44 also deforms radially according to a radius R, which passes between the two drive sleeves 46, 50 and through the tip 54 of the flexible pointer 44.

[0036] according to Figure 4 In one particular embodiment shown, the cam follower finger 72 is not fixed to either the first drive gear shaft 68 or the second drive gear shaft 70, but is fixed to either the first flexible arm 48 or the second flexible arm 52 of the flexible pointer 44 (e.g., the first flexible arm). The actuation mechanism 60 remains unchanged in all other respects.

[0037] It goes without saying that the present invention is not limited to the embodiments just described, and those skilled in the art can conceive of various modifications and simple variations without departing from the scope of the invention as defined by the appended claims. In particular, according to Figure 5 In a specific embodiment of the invention shown, the actuation mechanism 60 includes a cam 76 to which the watch movement applies an angular rotation θ1. Tubes 64, 66 are fixed to a support such as a platen or bridge plate 78, and a first drive gear shaft 68 and a second drive gear shaft 70 are rotatably mounted on these tubes 64, 66. A first drive sleeve 46 of a flexible pointer 44 is press-fitted onto the first drive gear shaft 68 at a defined prestress angle, while a second drive sleeve 50 of the same flexible pointer 44 is press-fitted onto the second drive gear shaft 70 at the same prestress angle but in the opposite direction to the first drive sleeve 46. One of the first drive gear shaft 68 and the second drive gear shaft 70, for example, the first drive gear shaft 68, is equipped with a contact rod 80 that abuts against the rotating cam 76. Due to the rotation of the cam 76, the first drive gear shaft 68 rotates by an angle θ1. Pivoting causes the flexible pointer 44 to deform radially along radius R, and the flexible pointer 44 itself does not rotate. This is in Figures 6B-6D As shown in the figure, the flexible pointer 44 changes shape and length, but does not rotate itself.

[0038] List of reference numerals

[0039] 1. Flexible pointer

[0040] 2. First driving sleeve

[0041] 4. First flexible arm

[0042] 6. Second drive sleeve

[0043] 8. Second flexible arm

[0044] 10. Tip

[0045] D. Output axis

[0046] θ1. Angular rotation

[0047] Rotation angle

[0048] 12. Actuation mechanism

[0049] 14. First driving device

[0050] 16. Second drive unit

[0051] 18. Planetary gear retainer frame

[0052] 20. First Pivot

[0053] 22. Planetary Wheel

[0054] 24. Cam follower finger

[0055] 26. Outline

[0056] 28. Cam

[0057] 30. Pipe

[0058] 32. First drive gear shaft

[0059] 34. Second drive gear shaft

[0060] 36. First Sun Gear

[0061] 38. Second Sun Gear

[0062] 40. Intermediate wheel

[0063] 42. Second Pivot

[0064] 44. Flexible pointer

[0065] 46. ​​First driving sleeve

[0066] 48. First Flexible Arm

[0067] 50. Second drive sleeve

[0068] 52. Second flexible arm

[0069] 54. Tip

[0070] 56. First tooth

[0071] 58. Second tooth

[0072] 60. Actuation mechanism

[0073] 62. Planetary gear retainer frame

[0074] 64. First pipe

[0075] 66. Second pipe

[0076] 68. First drive gear shaft

[0077] 70. Second drive gear shaft

[0078] 72. Cam follower finger

[0079] 74. Outline

[0080] 76. Cam

[0081] 78. Circuit board

[0082] 80. Contact rod

[0083] R. radius

Claims

1. An actuation mechanism (60) for a flexible pointer (44), wherein a watch movement applies a first angular rotation (θ1) to the actuation mechanism (60), the flexible pointer (44) comprising a first drive sleeve (46) and a second drive sleeve (50), the first drive sleeve (46) and the second drive sleeve (50) being connected to the tip (54) of the flexible pointer (44) by means of a first flexible arm (48) and a second flexible arm (52), respectively, the first drive sleeve (46) being provided with a first tooth (56), the second drive sleeve (50) being provided with a second tooth (58), wherein when the flexible pointer (44) is in a free state without force, the first drive sleeve (46) and the second drive sleeve (50) are spaced apart from each other, and the operating position in which the flexible pointer (44) has a defined shape and length is a stressed position, in which... The first drive sleeve (46) is mounted at a defined first prestress angle, and the second drive sleeve (50) is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve (46). The first drive sleeve (46) and the second drive sleeve (50) are arranged such that at the force-bearing position of the flexible pointer (44), the first tooth (56) of the first drive sleeve (46) engages with the second tooth (58) of the second drive sleeve (50). The flexible pointer (44) is arranged such that when the angular position of the second drive sleeve (50) relative to the first drive sleeve (46) is changed by pivoting, the flexible pointer (44) changes its shape and length in a desired manner. The angular rotation (θ1) applied by the watch movement to the actuation mechanism (60) is achieved by the actuation mechanism (60) by a certain rotation angle. Modulation, the rotation angle The first tooth (56) of the first drive sleeve (46) is engaged with the second tooth (58) of the second drive sleeve (50) and applied in opposite directions to the first flexible arm (48) and the second flexible arm (52) of the flexible pointer (44), thereby determining the change in shape and length of the flexible pointer (44).

2. The actuation mechanism (60) according to claim 1, characterized in that, The actuation mechanism (60) includes a planetary gear retaining frame (62), to which the watch movement applies the first angular rotation (θ1). The planetary gear retaining frame (62) is provided with a first tube (64) and a second tube (66). A first drive gear shaft (68) and a second drive gear shaft (70) are rotatably mounted on the first tube and the second tube, respectively. The actuation mechanism (60) also includes a cam follower finger (72) arranged to travel along the contour (74) of a cam (76). The cam follower finger (72) is held against the contour by means of the elasticity of the flexible pointer (44). The cam (76) is a fixed element of the actuation mechanism (60). The cam follower finger (72) is arranged to follow the contour (74) of the cam (76) so that the first angular rotation (θ1) applied to the planetary gear retaining frame (62) by the watch movement is rotated by an angle. Further modulation, the rotation angle The angle modulation is applied from the first flexible arm (48) to the second flexible arm (52) in opposite directions by the engagement of the first tooth (56) and the second tooth (58). The shape and length variations of the flexible pointer (44) were determined.

3. The actuation mechanism according to claim 2, characterized in that, One of the first drive gear shaft (68) and the second drive gear shaft (70) is equipped with the cam follower finger (72).

4. The actuation mechanism according to claim 2, characterized in that, One of the first flexible arm (48) and the second flexible arm (52) is equipped with the cam follower finger (72).

5. An actuation mechanism (60) for a flexible pointer (44), wherein a watch movement applies a first angular rotation (θ1) to the actuation mechanism (60), the flexible pointer (44) comprising a first drive sleeve (46) and a second drive sleeve (50), the first drive sleeve (46) and the second drive sleeve (50) being connected to the tip (54) of the flexible pointer (44) by means of a first flexible arm (48) and a second flexible arm (52), the first drive sleeve (46) being provided with a first tooth (56) and the second drive sleeve (50) being provided with a second tooth (58), wherein when the flexible pointer (44) is in a free state without force, the first drive sleeve (46) and the second drive sleeve (50) are spaced apart from each other, and the operating position in which the flexible pointer (44) has a defined shape and length is a stressed position, wherein in the stressed position, the first drive sleeve (46) is rotated at a defined first prestress angle. The second drive sleeve (50) is installed in the opposite direction to the first drive sleeve (46) at a defined second prestress angle. The first drive sleeve (46) and the second drive sleeve (50) are arranged such that the first tooth (56) of the first drive sleeve (46) engages with the second tooth (58) of the second drive sleeve (50) at the force position of the flexible pointer (44). The flexible pointer (44) is arranged such that when the angular position of the second drive sleeve (50) relative to the first drive sleeve (46) is changed by pivoting, the flexible pointer (44) changes its shape and length in a desired manner. The watch movement applies the first angle rotation (θ1) to the cam (76), and the touch rod (80) abuts against the cam. Under the action of the first angle rotation (θ1) applied by the watch movement to the cam (76), the touch rod (80) rotates by a certain angle. Pivoting, the pivoting of the contact rod (80) is applied to one of the first drive sleeve (46) and the second drive sleeve (50), and regardless of whether the pivoting of the contact rod (80) is applied to one of the first drive sleeve (46) and the second drive sleeve (50), the pivoting is applied in the opposite direction to the other drive sleeve, thereby causing radial deformation of the flexible pointer (44).

6. The actuation mechanism according to claim 5, characterized in that, The actuation mechanism includes a first tube (64) and a second tube (66) fixed to a support member, and a first drive gear shaft (68) and a second drive gear shaft (70) are respectively mounted on the first tube and the second tube in a rotatable manner. The first drive sleeve (46) of the flexible pointer (44) is pressed onto the first drive gear shaft (68) at a defined prestress angle, and the second drive sleeve (50) of the same flexible pointer (44) is pressed onto the second drive gear shaft (70) at the same prestress angle but in the opposite direction to the first drive sleeve (46). One of the first drive gear shaft (68) and the second drive gear shaft (70) carries the contact rod (80) abutting against the rotating cam (76).

7. A flexible pointer (44) comprising a first drive sleeve (46) and a second drive sleeve (50), the first drive sleeve (46) and the second drive sleeve (50) being connected to the tip (54) of the flexible pointer (44) by means of a first flexible arm (48) and a second flexible arm (52), the first drive sleeve (46) being provided with a first tooth (56) and the second drive sleeve (50) being provided with a second tooth (58), wherein when the flexible pointer (44) is in a free state without force, the first drive sleeve (46) and the second drive sleeve (50) are spaced apart from each other, and the operating position of the flexible pointer (44) having a defined shape and length is a stressed position, wherein the stressed position... The first drive sleeve (46) is mounted at a defined first prestress angle, and the second drive sleeve (50) is mounted at a defined second prestress angle in the opposite direction to the first drive sleeve (46). The first drive sleeve (46) and the second drive sleeve (50) are arranged such that at the force position of the flexible pointer (44), the first tooth (56) of the first drive sleeve (46) engages with the second tooth (58) of the second drive sleeve (50). The flexible pointer (44) is arranged such that when the angular position of the second drive sleeve (50) relative to the first drive sleeve (46) is changed by pivoting, the flexible pointer (44) changes its shape and length in a desired manner.

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