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EP4498178A1 - Mikromechanisches betätigungssystem mit flexibler führung für die uhr - Google Patents

Mikromechanisches betätigungssystem mit flexibler führung für die uhr Download PDF

Info

Publication number
EP4498178A1
EP4498178A1 EP23187222.7A EP23187222A EP4498178A1 EP 4498178 A1 EP4498178 A1 EP 4498178A1 EP 23187222 A EP23187222 A EP 23187222A EP 4498178 A1 EP4498178 A1 EP 4498178A1
Authority
EP
European Patent Office
Prior art keywords
actuation system
actuator
translation table
movable part
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23187222.7A
Other languages
English (en)
French (fr)
Inventor
Julien Christan
Mohammad Hussein Kahrobaiyan
Romain Le Moal
Pascal Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP23187222.7A priority Critical patent/EP4498178A1/de
Priority to US18/753,281 priority patent/US20250036079A1/en
Priority to JP2024103926A priority patent/JP7756203B2/ja
Priority to KR1020240091851A priority patent/KR20250015909A/ko
Priority to CN202410959227.2A priority patent/CN119356055A/zh
Priority to CN202421693653.8U priority patent/CN222914051U/zh
Publication of EP4498178A1 publication Critical patent/EP4498178A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/14—Mainsprings; Bridles therefor
    • G04B1/145—Composition and manufacture of the springs
    • 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
    • G04B17/30—Rotating governors, e.g. centrifugal governors, fan governors
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring

Definitions

  • the invention relates to the field of mechanical watchmaking.
  • the invention relates more specifically to a micromechanical actuation system with flexible guidance for watchmaking.
  • micromechanical actuation systems In the field of micromechanical devices, micromechanical actuation systems are used, which have the function of transmitting a movement between two elements of a micromechanical device.
  • Such an actuation system comprises in particular an actuator engaged with the part to be actuated, which may be a gear wheel or an adjustment element.
  • Some actuators comprise a fixed part assembled on a support, for example a pivot mounted on the plate, and a part movable relative to the fixed part, for example a rocker pivoting about the pivot.
  • a spring exerts a restoring force on the movable part, either to retain it or to push it.
  • the spring retains the rocker in a reference position.
  • a support piece pushes the rocker from a reference position to an actuation position of the module.
  • the rocker returns to its initial position under the effect of the spring.
  • the aim of the present invention is to overcome all or part of the drawbacks mentioned above by proposing an actuation system for a highly precise clock movement.
  • the invention relates to an actuation system for a watch movement, the actuation system being configured to be able to at least partially move a part according to a plurality of positions, the actuation system comprising a micromechanical actuator intended to be engaged with said part, the micromechanical actuator comprising a part intended to be fixedly mounted, for example relative to a watch movement plate, and a part movable relative to the fixed part, the actuator comprising a spring part connecting the movable part to the fixed part, the spring part carrying the movable part, the actuation system further comprises adjustment means cooperating with the actuator so as to be able to move the movable part of the actuator into a plurality of positions.
  • the invention is remarkable in that the spring part comprises a flexible blade guide.
  • the invention provides an actuation system with a highly precise actuator, since it can take a large number of very close positions.
  • the actuation system avoids play problems thanks to its spring part.
  • the flexible blade guide comprises at least two translation tables arranged in series, a first translation table is connected to the fixed part, and a last translation table is connected to the mobile part.
  • each translation table comprises a pair of substantially parallel flexible blades and a rigid section on which the pair of flexible blades is mounted.
  • two consecutive translation tables are arranged head to tail with respect to each other.
  • the rigid sections are extended to be able to associate the following translation table with them.
  • At least the spring part is defined substantially in a plane so as to be substantially flat, preferably the movable part also, or even the fixed part.
  • At least the second translation table is arranged on a first side of the first translation table, which is opposite the movable part relative to the first translation table.
  • At least the last translation table is arranged on a second side of the first translation table, which is towards the movable part.
  • the rigid section of the translation table arranged on the first side which is furthest from the first translation table, extends to a translation table arranged on the second side to form a peripheral side of the spring part.
  • each rigid section of a translation table extends beyond the pair of flexible blades of said translation table.
  • the spring part is arranged under the fixed part.
  • the flexible blades of the translation tables of the spring part are substantially parallel in the rest position of the actuator.
  • the movable part comprises a hook.
  • the actuator is a single-piece, the actuator being for example obtained by a LIGA or DRIE type process.
  • the movable part has the shape of an elbow formed of a first segment arranged perpendicular to the rigid section of the last translation table, and a second segment forming a right angle with the first segment.
  • the invention also relates to a clockwork movement comprising such an actuation system.
  • the invention also relates to a timepiece, for example a watch, comprising such a timepiece movement.
  • the subject matter of the invention which is an actuation system, is configured to actuate means for adjusting the rate of a timepiece regulating organ.
  • an actuation system may be used for other applications in a timepiece movement, and it is in no way limited to an application in a regulating organ.
  • FIGS. 1 to 3 show a schematic representation of an embodiment of a regulating member 1 intended to be arranged in a timepiece movement comprising a plate (not shown in the figures) provided with a housing. Such a movement is for example arranged in a timepiece, such as a watch.
  • the regulating organ 1 comprises an inertial mass, here an annular balance 23, a spiral spring 25 as an elastic return element of the inertial mass configured to make it oscillate, a balance shaft 24, and a balance bridge 22.
  • the elements are superimposed from bottom to top in the following order: the balance wheel 23, the hairspring 25, and the balance bridge 22.
  • the balance shaft 24 passes through the balance center, the hairspring 25, and the balance bridge 22.
  • the balance shaft 24 is held by two shock-absorbing bearings 28 arranged at both ends of the balance shaft 24.
  • a first bearing is arranged below, and the second bearing 28 is arranged above in the balance bridge 22.
  • the balance bridge 22 is provided with a through hole in which the second bearing 28 is held.
  • the hairspring 25 preferably extends substantially in one plane.
  • the hairspring 25 comprises a flexible ribbon 2 wound on itself in several turns, the ribbon 2 having a predefined stiffness.
  • the internal end 9 of the ribbon 2 is made of material or is assembled to a rigid support 3, generally called a collet.
  • the rigid support 3 has a substantially triangular shape, and is threaded around the balance shaft 24.
  • the spiral spring 25 further comprises means for adjusting its stiffness.
  • the adjustment means can be actuated by a user when the regulating member is mounted in the plate of the watch movement.
  • the adjustment means comprise a flexible element 5 arranged in series with the strip 2, that is to say following the strip, preferably in its extension, the flexible element 5 connecting an external end 4 of said strip 2 to a rigid support 17.
  • the flexible element 5 is integral with the external end 4 of the strip 2.
  • the flexible element 5 is an element different from the strip 2.
  • the flexible element 5 adds additional stiffness following that of the ribbon 2.
  • the flexible element 5 preferably has a stiffness greater than that of the ribbon 2.
  • the flexible element 5 is here arranged in the extension of the ribbon 2.
  • the adjustment means and the ribbon 2 are in one piece, or even formed from the same material, for example silicon.
  • the flexible element 5 of the spiral spring 25 comprises a first flexible blade 19 and a movable semi-rigid part 18, which extends from the external end of the ribbon 2, and is connected to the first flexible blade 19, preferably on the same side of the rigid part 18.
  • the first flexible blade 19 is connected on the other hand to the rigid support 17.
  • the rigid support 17 has an L shape, a first branch 46 of the L serving as a connection with the first flexible blade 19, the second branch 47 of the L being oriented on the side opposite the first flexible blade 19 so that it can be assembled to the clock movement.
  • the spring-balance adjustment means 25 further comprise pre-stressing means 6 for applying a variable force or torque to the flexible element 5.
  • pre-stressing means 6 for applying a variable force or torque to the flexible element 5.
  • the torque or force is continuously adjustable by the pre-stressing means 6. In other words, the torque or force is not restricted to point values.
  • the stiffness of the flexible element 5 can be adjusted with great precision.
  • the prestressing means 6 comprise a secondary flexible blade 21, arranged on an opposite side of the rigid part 18 in the extension of the first flexible blade 19.
  • the secondary flexible blade 21 is connected by the other end to a curved lever 14 going around the ribbon 2.
  • the lever 14 is connected, in addition to the secondary flexible blade 21, to a semi-rigid structure 27 linked to the rigid support 17.
  • the semi-rigid structure 27 deforms partly when the lever 14 is actuated by force or torque.
  • the force or torque is exerted on the free end 15 of the lever 14.
  • the lever 14 of the prestressing means 6 transmits the force or torque couple to the flexible element 5 via the secondary flexible blade 21 and the semi-rigid structure 27, so as to modify the stiffness of the spiral spring 25.
  • the regulating member comprises a particular actuation system 20 according to the invention.
  • the actuation system 20 is configured to be able to at least partially move a part according to a plurality of positions.
  • the part is the lever 14 of the prestressing means 6.
  • the regulating member 1 comprises a stud holder 31 provided with a suspended stud 34.
  • the stud holder 31 is mechanically connected to the flexible element 5, but it does not block the ribbon 2.
  • the stud holder 31 surrounds the second bearing 28.
  • the stud holder 31 comprises a central ring 38 arranged around the second bearing 28, and which rests on the balance bridge 22.
  • the stud 34 cooperates with the second branch 47 of the rigid support 17.
  • the prestressing means 6 and the flexible element 5 are supported by the stud holder 31 from which they are suspended.
  • the stud 34 is rigidly connected to the rigid support 17.
  • the stud 34 is integral with the rigid support 17.
  • the assembly of the stud 34 and the spiral spring 25 is for example carried out by gluing, brazing, welding, by deformation of metallic glass, or by mechanical fixing.
  • the stud 34 is movable relative to the balance bridge.
  • the stud holder 31 is movable in rotation about the second bearing 28 relative to the balance bridge 22.
  • the stud holder 34 can for example be moved over an angular range of 20°, or even 10°.
  • the movement of the stud 34 relative to the balance bridge 22 makes it possible to adjust the reference of the regulating organ 1.
  • the actuation system 20 further comprises an actuator 30 configured to actuate the lever 14.
  • the actuator 30 is mechanically connected to the prestressing means 6, the actuator 30 being configured to perform at least part of a movement, preferably substantially linear, or even rectilinear, to actuate the prestressing means 6.
  • At least a portion of the actuator 30 moves substantially along a straight line, unlike, for example, the stud holder 31 which undergoes rotation by turning around an axis.
  • at least a portion of the actuator 30 moves closer to or away from the spiral spring 25 in a direction oriented substantially toward the spiral spring.
  • the direction of movement of the actuator 30 is substantially radial relative to the balance 23 and the hairspring 25.
  • the straight line along which the actuator 30 moves is directed towards the centre of the balance 23 and the hairspring 25. Furthermore, this makes the adjustment of the rate independent of the adjustment of the mark.
  • the actuator 30 is eccentric relative to the regulating member, that is to say mounted at a distance from the center of the regulating member 1, and is connected only to the lever 14 of the adjustment means. Thus, the actuator 30 is not mounted directly on the regulating member 1, like a stud holder on a bearing 28 of the regulating member 1 for example.
  • the actuator 30 is mounted on the balance bridge 22.
  • the actuator 30 is mounted substantially perpendicular to the plane of the balance bridge 22. More precisely, it is assembled on a slice of the balance bridge 22.
  • the actuator 30 comprises in particular a part 33 intended to be fixedly mounted, for example relative to a watch movement plate, a movable part 37 relative to the balance bridge 22 and connected to the lever 14, as well as a spring part 35 joining the movable part 37 to the fixed part 33.
  • the fixed part 33 is mounted here on the bridge of balance 22, and is therefore fixed relative to the latter.
  • the fixed part 33 and the movable part 37 are preferably rigid.
  • the fixed part 33, the spring part 35 and the movable part 37 are arranged in the same plane.
  • the actuator 30 is generally flat, and extends substantially in one plane.
  • the actuator 30 is preferably in one piece, the actuator 30 being for example obtained by a LIGA type lithography process, or a DRIE type deep reactive ion etching process.
  • the actuator 30 comprises a hook 39 engaged with the lever 14, the hook 39 being mounted on the movable part 37.
  • the hook 39 at least partly surrounds the lever 14, but it can also be closed around the lever 14.
  • the stiffness of the flexible element 5 is modified, because the movement of the lever 14 exerts a greater or lesser force or torque on the flexible element 5, so that the stiffness of the flexible element 5 varies, and consequently the stiffness of the spiral spring 25 as a whole.
  • the actuation system 20 thus makes it possible to adjust the operation of the regulating member 1.
  • the fixed part 33 here has a substantially square shape, and is provided with at least one fixing notch 41, preferably two fixing notches 41, 42, each to receive a stud 43, 44 extending from the balance bridge 22.
  • the fixing notches 41, 42 are for example arranged on two diagonally opposite sides of the fixed part 33.
  • Each notch 41, 42 is provided with a flexible tab 48, 49 arranged in the notch 41, 42.
  • the first notch 41 is open on the side to slide it laterally around the first stud 43.
  • the second notch 42 is closed, and can receive the second stud 44 by insertion into the second notch 42.
  • the flexible tabs 48, 49 deform when a stud 43, 44 enters the notch 41, 42, and they serve as a support means to retain the stud 43, 44 in the notch 41, 42.
  • the flexible tabs 48, 49 make it possible to improve the positioning precision by taking up the positioning clearances of the studs 43, 44 in the notches 41, 42, preferably in the same direction.
  • the actuator 30 is mounted on the balance bridge 22, so as to be substantially perpendicular to the plate and to the balance bridge 22. Thus, it is mounted on the edge of the balance bridge 22.
  • the spring portion 35 is arranged below the fixed portion 33, so that it extends below the level of the balance bridge 22.
  • the spring part 35 comprises a flexible guide.
  • the flexible guide here comprises several translation tables 51, 52, 53, 54 with flexible blades arranged in series, one after the other. They are defined as being in series, because the movements of each translation table add up at least in part.
  • Each translation table 51, 52, 53, 54 comprises a pair of substantially parallel flexible blades 61, 62, 63, 64 and a rigid section 56, 57, 58, 59 on which the pair of flexible blades 61, 62, 63, 64 is mounted.
  • the first translation table 51 is arranged under the fixed part 33 and has a first rigid section 56 extended to associate therewith a second translation table 52 arranged head to tail relative to the first translation table 51.
  • the second pair of flexible blades 52 is substantially parallel to the first pair of flexible blades 51.
  • the second rigid section 57 is substantially parallel to the first rigid section 56, but is offset by half the length of the first rigid section.
  • the second rigid section 57 is also extended to associate a third translation table 53 arranged head to tail with respect to the second translation table 52, and therefore substantially parallel to the first translation table 51.
  • the third pair of flexible blades 63 is substantially parallel to the first 61 and the second pair of flexible blades 62.
  • the actuator 30 comprises a fourth translation table 54 arranged on the other side of the first translation table 5 relative to the second 52 and the third translation table 53.
  • the fourth translation table 54 is arranged head-to-tail relative to the third translation table 53.
  • the fourth pair of flexible blades 64 is substantially parallel to the other pairs of flexible blades, and the fourth section 59 is arranged substantially in the same direction as the second section 57.
  • the third 53 and the fourth translation table 54 are connected by an arm 55 extending from the third section 58, and passing below the first rigid section 56 of the first translation table 51.
  • Such an arrangement of translation tables 51, 52, 53, 54 makes it possible to obtain a movement of the mobile part 37, which is substantially linear, preferably rectilinear, while retaining a compact actuator 30.
  • the actuator 30 comprises an even number of translation tables, since two translation tables arranged head to tail make it possible to mutually compensate for the vertical deviation of the hook 39 generated by each.
  • the hook 39 remains substantially at the same height when it moves.
  • the movable part 37 extends from the fourth section 59.
  • the movable part 37 is preferably rigid.
  • the movable part 37 here has the shape of an elbow formed by a first segment 66 arranged perpendicular to the fourth section 59 and a second segment 67 forming a right angle with the first segment 66.
  • the hook 39 of the actuator 30 is arranged at the end of the second segment 67.
  • a bulge 68 serves as a support to be able to move the movable part 37.
  • the mobile part 37 comes closer or less to the fixed part 33, thanks to the deformation of the translation tables 51, 52, 53, 54 of the spring part 35.
  • the hook 39 pulls more or less strongly on the lever 14 to actuate the means for adjusting the stiffness of the flexible element 5.
  • the direction of movement of the movable part 39 of the actuator 30 and of the lever 14 is substantially orthogonal to the direction of the lever 14.
  • the lever 14 is preferably movable in the hook 39, so as to be able to slide when the lever 14 performs an angular displacement.
  • the lever 14 comprises a free end 15 cooperating with the hook 39.
  • the reference mark can be adjusted without having to modify the position of the actuator 30, in particular relative to the plate of the movement.
  • the mechanical connection between the actuator 30 and the lever 14 is maintained regardless of the position of the lever 14 relative to the actuator 30.
  • this actuation system 20 makes it possible to adjust the rate and the reference independently of each other, while having a constant predetermined position of the actuator in the movement, for example relative to the plate and the balance bridge 22.
  • the actuation system 20 further comprises adjustment means cooperating with the actuator 30 so as to be able to move the movable part 37 of the actuator 30 according to a plurality of positions.
  • the adjustment means comprise a pivoting control rocker 45 arranged to move the movable part 37 of the actuator 30.
  • the control rocker 45 is preferably arranged in a plane substantially perpendicular to the plane of, and is in contact with the bulge 68 of the movable part 37.
  • the control rocker 45 comprises a pivot arm 69 and a support arm 71 connected to a hub 72 of the pivoting control rocker 45.
  • the support arm 71 cooperates with the movable part 37 of the actuator 30 to move it mechanically by contact.
  • the support arm 71 pushes back more or less the bulge 68 of the movable part 37 to move it.
  • the hook 39 pulls more or less the lever 14 of the spiral spring 25.
  • the control rocker 45 is configured to pivot in a plane substantially perpendicular to the plane of the actuator 30.
  • the control lever 45 is configured to be mounted on the movement plate via the hub 72, which can rotate about a screw body 73, the screw 73 being mounted on the plate.
  • the adjustment means further comprise a control screw 70 mechanically connected to the pivot arm 69, in order to control the pivoting of the control rocker 45.
  • the axis of the control screw 70 is arranged in the plane of the control rocker 45 in the direction of the pivot arm 69.
  • control rocker 45 and the actuator 30 are actuated to move the hook 39 and therefore the lever 14 of the prestressing means 6.
  • control screw 70, the control rocker 45, the movable part 37 of the actuator 30, and the lever 15 are each in a first position, in which the hook 39 pulls little on the lever 15.
  • control rocker 45, the movable part 37 of the actuator 30, and the lever 15 are shown in a second position corresponding to the figure 10 .
  • control screw 70, the control rocker 45, the movable part 37 of the actuator 30, and the lever 15 are each in a second position, in which the hook 39 pulls the lever 15 more than on the figure 9 .
  • control screw 70 pushes the pivot arm 69 of the control rocker 45, so that the support arm 71 in contact with the bulge 68, in turn pushes the movable part 37 of the actuator 30 towards the fixed part 33 by deformation of the spring part 35.
  • the hook 39 pulls on the lever 14, which performs a centrifugal movement.
  • the flexible blades of the first translation table 51 and the third translation table 53 deform in the same first direction
  • the flexible blades of the second translation table 52 and the fourth translation table 54 deform in the same second direction, the second direction being opposite to the first direction.
  • a spring 74 is arranged around the screw body 73 to press the actuator 30 against the balance bridge 22, so that it does not come loose.
  • the spring 74 clamps the screw body 73.
  • the spring 74 has a U shape surrounding the screw body 73. One branch of the U here extends from the fixed part 33 of the actuator 30 to which it is attached.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Transmission Devices (AREA)
  • Control Of Position Or Direction (AREA)
  • Machine Tool Units (AREA)
  • Micromachines (AREA)
EP23187222.7A 2023-07-24 2023-07-24 Mikromechanisches betätigungssystem mit flexibler führung für die uhr Pending EP4498178A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP23187222.7A EP4498178A1 (de) 2023-07-24 2023-07-24 Mikromechanisches betätigungssystem mit flexibler führung für die uhr
US18/753,281 US20250036079A1 (en) 2023-07-24 2024-06-25 Micromechanical actuation system with a flexible guide for watchmaking
JP2024103926A JP7756203B2 (ja) 2023-07-24 2024-06-27 時計製造のための可撓性ガイドを有するマイクロメカニカル作動システム
KR1020240091851A KR20250015909A (ko) 2023-07-24 2024-07-11 시계제조를 위한 가요성 가이드를 갖는 마이크로기계 작동 시스템
CN202410959227.2A CN119356055A (zh) 2023-07-24 2024-07-17 用于制表业的具有柔性导向件的微机械致动系统
CN202421693653.8U CN222914051U (zh) 2023-07-24 2024-07-17 用于钟表机芯的致动系统、钟表机芯和钟表

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23187222.7A EP4498178A1 (de) 2023-07-24 2023-07-24 Mikromechanisches betätigungssystem mit flexibler führung für die uhr

Publications (1)

Publication Number Publication Date
EP4498178A1 true EP4498178A1 (de) 2025-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23187222.7A Pending EP4498178A1 (de) 2023-07-24 2023-07-24 Mikromechanisches betätigungssystem mit flexibler führung für die uhr

Country Status (5)

Country Link
US (1) US20250036079A1 (de)
EP (1) EP4498178A1 (de)
JP (1) JP7756203B2 (de)
KR (1) KR20250015909A (de)
CN (2) CN119356055A (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4006648A1 (de) * 2020-11-27 2022-06-01 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zur regulierung der effektiven länge dieser spiralfeder ausgestattet ist
EP4009115A1 (de) * 2020-12-02 2022-06-08 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zum ausgleichen der starrheit ausgestattet ist
CH718169A2 (fr) * 2020-12-18 2022-06-30 Omega Sa Mécanisme résonateur d'horlogerie à guidage flexible muni de moyens d'ajustement de la rigidité.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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US10216146B2 (en) * 2017-07-18 2019-02-26 Patek Philippe Sa Geneve Indicator actuating organ for a timepiece
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EP4009115A1 (de) * 2020-12-02 2022-06-08 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zum ausgleichen der starrheit ausgestattet ist
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