EP4492153A1 - Auspuffvorrichtung für eine uhr - Google Patents

Auspuffvorrichtung für eine uhr Download PDF

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Publication number
EP4492153A1
EP4492153A1 EP24187717.4A EP24187717A EP4492153A1 EP 4492153 A1 EP4492153 A1 EP 4492153A1 EP 24187717 A EP24187717 A EP 24187717A EP 4492153 A1 EP4492153 A1 EP 4492153A1
Authority
EP
European Patent Office
Prior art keywords
blocking
escapement
locking
escapement wheel
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24187717.4A
Other languages
English (en)
French (fr)
Inventor
Fabiano Colpo
Olivier Karlen
Xuan Mai Tu
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.)
Rolex SA
Original Assignee
Rolex SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolex SA filed Critical Rolex SA
Publication of EP4492153A1 publication Critical patent/EP4492153A1/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
    • G04B15/00—Escapements
    • G04B15/10—Escapements with constant impulses for the regulating mechanism
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • 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
    • G04B15/00—Escapements
    • G04B15/02—Escapements permanently in contact with the regulating mechanism
    • G04B15/04—Cylinder escapements
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel

Definitions

  • the present invention relates generally to escapement devices for timepieces equipped with an inertial element, for example a balance wheel, and in particular, the present invention relates to escapement devices with active two-wave tangential drive.
  • the blocker has a particularly limited format with respect to the respective format of the escape wheels which are each provided with a significant number of teeth.
  • the blocker has a very small size so that its manufacture is complex, or the escape wheels have a large size, which is detrimental to the compactness of the system.
  • the orientation of the contact force between a given tooth of one or the other of the two escape wheels and a first or a second blocking means of the blocker is such that limiting pins or shims are necessary, particularly in the event of an impact.
  • the document CH719133A1 relates to a resonator for a timepiece, intended to cooperate with an escapement mechanism comprising two escapement wheels, in which the inertial element receives direct impulses from the escapement wheels.
  • An aim of the present invention is to overcome the drawbacks of the prior art mentioned above and in particular, first of all, to propose an escapement device with active two-alternation tangential drive whose components are easier to manufacture and/or assemble, and/or whose size is reduced, and/or which has robust operation.
  • the escapement device comprises a single blocking mobile and two escapement mobiles.
  • the escapement device of the document WO2013182243A1 comprising two locking mobiles to be angularly indexed between them, no indexing is required for the above implementation, since there is only one locking mobile.
  • the locking mobile is pivotally mounted for alternately blocking the first or second escapement mobile: the latter can be mounted or arranged side by side, in particular symmetrically with respect to a plane passing through the respective axes of rotation of the inertial element and the blocking mobile.
  • the escapement device provides increased operational safety, in particular with respect to the device which is the subject of the document EP1367462A1 , because the first or second locking force passes through the fourth axis of rotation or substantially through the fourth axis of rotation: in the locking position (in the rest phase), the locking mobile does not undergo any overturning torque, which makes it possible to obtain a stable locking position, and there is no need to provide stops or stops normally necessary to limit the travel of the locking mobile, in particular in the event of an impact.
  • the invention may be defined by the following features, taken individually or in combination.
  • the first force, exerted on the blocking mobile by the first escapement mobile blocked by the first blocking surface portion passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation, so as to ensure an absence of overturning torque on the blocking wheel set during a rest phase.
  • the first force, exerted on the blocking wheel set by the first escape wheel set blocked by the first blocking surface portion passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation, so as to ensure a stable rest position of the blocking wheel set during a rest phase. In said rest phase, the blocking wheel set is engaged only with the first escape wheel set.
  • the second force, exerted on the blocking wheel set by the second escape wheel set blocked by the second blocking surface portion passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation, so as to guarantee an absence of overturning torque on the blocking wheel set during a rest phase.
  • the second force, exerted on the blocking wheel set by the second escape wheel set blocked by the second blocking surface portion passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation, so as to guarantee a stable rest position of the blocking wheel set during a rest phase.
  • the blocking wheel set is engaged only with the second escape wheel set.
  • the blocking wheel set is mounted in a free pivot connection.
  • the blocking wheel set is mounted in a free pivot connection on a bridge and/or on a plate of the timepiece.
  • the blocking wheel set is free of an elastic return device, and/or the escapement device is free of an elastic return device coupled or engaged with the blocking wheel set to maintain it or return it to a rest position (it being understood that the elastic member (a balance spring) is nonetheless conventional manner) of the oscillator coupled to the inertial element causes, by means of the sustained movements of the inertial element, the release of the escapement wheels and then the movements of the blocking wheel).
  • the movements of the blocking wheel are caused by the inertial element and/or the first escapement wheel and/or the second escapement wheel.
  • the movements of the blocking wheel are caused exclusively by the inertial element and/or the first escapement wheel and/or the second escapement wheel.
  • the escapement device is not a direct impulse escapement device.
  • the first escapement wheel and/or the second escapement wheel do not cooperate directly with the inertial element (or an oscillator member typically formed by a balance wheel/hairspring pair).
  • the inertial element comprises a balance wheel.
  • the inertial element may comprise a balance wheel, a balance shaft and a plate with a pin, coupled to a balance spring.
  • the first surface blocking portion is arranged to block the rotation of the first escapement wheel, i.e. an escapement movement of the first escapement wheel
  • the second surface blocking portion is arranged to block the rotation of the second escapement wheel, i.e. an escapement movement of the second escapement wheel.
  • the escapement device is free of stops or stops limiting the movement of the locking mechanism beyond a nominal locking position.
  • the first surface blocking portion is arranged so that a first friction cone constructed around a point of application of the force exerted by the first mobile escapement on the blocking mobile comprises, or encompasses, or passes through the fourth axis of rotation
  • the second blocking surface portion is arranged so that a second friction cone constructed around a point of application of the force exerted by the second escapement mobile on the blocking mobile comprises, or encompasses, or passes through the fourth axis of rotation.
  • the first blocking surface portion has a first normal direction passing through the fourth axis of rotation or passing substantially through the fourth axis of rotation
  • the second blocking surface portion has a second normal direction passing through the fourth axis of rotation or passing substantially through the fourth axis of rotation.
  • the angle ⁇ is within a range of values from 60° to 80°.
  • the plurality of first locking surfaces and the plurality of second locking surfaces are arranged to cooperate with the locking wheel set in a first plane, called the locking plane, and the first drive toothing is arranged to cooperate with the second drive toothing in a second plane, called the drive plane, parallel and distinct from the locking plane, to transmit the driving force from the first escape wheel set to the second escape wheel set.
  • the first escape wheel set and/or the second escape wheel set may be formed by two superimposed components: a first level comprises the drive toothing and a second level comprises the locking surfaces. The cooperation between the two escape wheel sets thus takes place in a plane distinct from the cooperation of each escape wheel set with the locking wheel set.
  • the first escapement wheel and/or the second escapement wheel respectively comprises between 3 and 8 first locking teeth and between 3 and 8 second locking teeth, and preferably 4 or 5 first locking teeth and 4 or 5 second locking teeth.
  • the angle ⁇ is within a range of values from 50° to 70°.
  • the angle ⁇ is less than the angle ⁇ .
  • the escapement device comprises a single blocking mobile and two escapement mobiles.
  • the escapement device of the document WO2013182243A1 comprising two locking mobiles to be angularly indexed with respect to each other, no indexing is required for the above implementation, since there is only one locking mobile.
  • the locking mobile is pivotally mounted to alternately block the first or second escapement mobile: the latter can be mounted or arranged side by side, in particular symmetrically with respect to a plane passing through the respective axes of rotation of the inertial element and the locking mobile.
  • the cooperation between the two escapement mobiles is done in the same plane as that of the cooperation of each escapement mobile with the blocking mobile, so that the total thickness of the escapement device is reduced and the parts are easy to manufacture, because they can be designed flat and without relief.
  • the first surface blocking portion is arranged so that a first force, exerted on the blocking wheel set by the first escape wheel set blocked by the first surface blocking portion, passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation, and in that the second surface blocking portion is arranged so that a second force, exerted on the blocking wheel set by the second escape wheel set blocked by the second surface blocking portion, passes substantially in the vicinity of the fourth axis of rotation, in particular passes through the fourth axis of rotation.
  • the escapement device provides increased operational safety, since the first or second blocking force passes through the fourth axis of rotation: in the blocking position (or in the rest phase), the blocking wheel set does not undergo any overturning torque, which makes it possible to obtain a stable blocking position, and there is advantageously no need to provide stops or stoppers normally necessary to limit the travel of the blocking wheel set, in particular in the event of an impact. Naturally, such an escapement device also accommodates the installation of stops or stoppers.
  • the angle ⁇ is within a range of values from 60° to 80°.
  • the angle ⁇ is within a range of values from 50° to 70°.
  • the angle ⁇ is less than the angle ⁇ .
  • the first locking teeth and the second locking teeth are asymmetrical.
  • the first locking teeth and the second locking teeth have a head diameter (DT2) greater than a head diameter (DT1) of the first and second drive teeth respectively.
  • the first locking teeth and the second locking teeth have a tooth thickness (e2) greater than a tooth thickness (e1) of the first and second drive teeth respectively.
  • the first escapement wheel and/or the second escapement wheel respectively comprises between 3 and 8 first locking teeth and between 3 and 8 second locking teeth, and preferably 4 or 5 first locking teeth and 4 or 5 second locking teeth.
  • a third aspect of the invention relates to a timepiece, comprising an escapement device according to the first or second aspect.
  • FIGS. 1 to 8 illustrate an escapement device 10 with active two-alternation tangential drive according to a first embodiment, namely that during the impulse phases of the escapement device, one or the other of the first and second escapement wheels in contact with the blocking wheel, and the blocking wheel have rotations in opposite directions.
  • the escapement device 10 cooperates with the resonator 5 via a pin mounted on a plate 511 of the balance wheel 51.
  • FIG 1 shows that the first escapement wheel 1 is engaged with a driving wheel 3 of the driving train 99, in particular a wheel 31 of the driving train 99, by means of a pinion 13 secured to the first escapement wheel 1.
  • the escapement device 10 of the present invention has the function of maintaining the oscillations of the regulating organ, that is to say the balance 51 of the oscillator 5.
  • the first escapement wheel 1 is pivotally mounted about a first axis of rotation A1, and it is engaged with the drive train 99 of the clockwork movement to receive a driving force, and comprises a plurality of first locking surfaces 121a arranged on first locking teeth 121 (visible on the figures 2 And 3 ), as well as a first drive tooth 111. It can be noted that the first locking teeth 121 and the first drive tooth 111 are arranged in parallel and distinct planes.
  • the second escapement wheel 2 is pivotally mounted about a second axis of rotation A2, comprises a plurality of second blocking surfaces 221a arranged on second blocking teeth 221, as well as a second drive toothing 211 engaged with the first drive toothing 111. It may be noted that the second blocking teeth 221 and the second drive toothing 211 are arranged in parallel and distinct planes.
  • the blocking wheel 4 also comprises impulse transmission means with first and second impulse transmission means which are respectively in the form of a first impulse surface 42a and a second impulse surface 42b, which form a fork such as that known within a blocker or an anchor of an anchor escapement device.
  • This fork is shaped to cooperate with a pin 511a of the plate 511 of the balance 51.
  • the first and second escapement wheels 1 and 2 comprising in particular first and second escapement wheels 12, 22 respectively, are provided to cooperate with the blocking wheel 4 so as to provide the impulses to the sprung balance and thus allow the maintenance of its oscillations around a third axis of rotation A3, as will be described below. Furthermore, the first and second escapement wheels 1, 2 mesh with each other by means of the first and second wheels 11, 21 respectively, in particular by means of the first and second drive teeth formed respectively by teeth 111, 211.
  • the mobile motor 3 of the figure 1 can be in direct contact with a seconds wheel (not shown) of the engine train 99.
  • a seconds wheel (not shown) of the engine train 99.
  • such a construction makes it possible to generate rotation speeds of the first and second escapement wheels 1, 2 which make it possible to limit the number of teeth of the first and second escapement wheels 12, 22, and thus allow the implementation of first and second escapement wheels 1, 2 whose respective dimensions are substantially of the same order as those of the blocking wheel 4 to provide a compact active two-alternation escapement device of dimensions substantially similar to those of a Swiss lever escapement.
  • first and second escapement wheels 1 and 2 can respectively be inscribed in a cylinder of diameter D1, D2 each centered on the axis A1, A2 of the same order as the diameter D4 of the cylinder centered on the fourth axis of rotation A4 in which the blocking wheel 4 can be inscribed ( Figure 3 ).
  • the diameter D4 is greater than the diameter D1 or D2.
  • the axes A1, A2, A4 define the respective ends of a substantially equilateral triangle.
  • D4 is equal to approximately 1.4.D1 or 1.4.D2 (D1 and D2 being identical). More generally, D4 is preferably between D1 and 2.D1, or between D2 and 2.D2.
  • an element inscribed in a cylinder having a diameter D centered on an axis is meant that the diameter D is the smallest diameter centered on the axis such that the element is included in the cylinder.
  • FIG 4 represents a detailed view of the locking mobile 4 seen from above in a plane. This highlights in particular an angle ⁇ separating a first straight line S1 connecting the first surface locking portion 43a to the fourth axis of rotation A4 from a second straight line S2 connecting the second surface locking portion 43b to the fourth axis of rotation A4.
  • the first straight line S1 connects the fourth axis of rotation A4 to the first surface locking portion 43a at the contact zone, in particular at the contact point 431a (see Figure 5 ), between the first surface blocking portion 43a and a first blocking tooth 121, in particular an end 121a, during a rest phase of the escapement device 10.
  • the second straight line S2 connects the fourth axis of rotation A4 to the second surface blocking portion 43b at the contact zone, in particular at the contact point 431b (see Figure 5 ), between the second surface blocking portion 43b and a second blocking tooth 221, in particular an end 221a, during a rest phase of the escapement device (see Figure 3 ).
  • this angle ⁇ is approximately equal to 70°. More generally, the following range of values can be expected: 60° ⁇ ⁇ ⁇ 80°.
  • the first and second surface blocking portions 43a, 43b are concave, that is to say that they are formed of continuous or discontinuous surfaces forming a V when they are seen from one or the other of the escapement mobiles.
  • the points 431a, 431b are defined by the hollow tip of the “V” ( Figure 5 ).
  • angles ⁇ a, ⁇ b are obtuse angles.
  • the angles ⁇ a, ⁇ b are approximately equal to 170°. More generally, the angles ⁇ a, ⁇ b are preferably between 140° and 175°. Studies carried out by the applicant show that this angular range represents a good compromise between good blocking security, minimal or no rebound at the end of the pulse and minimal energy loss on release.
  • the angle ⁇ a may or may not be equal to the angle ⁇ b.
  • first and second surface blocking portions 43a, 43b are inclined with respect to the normals to the segments S1, S2 ( Figure 5 ).
  • a first surface portion 43a1 may for example form an angle ⁇ a1 of the order of 6° with respect to the normal to the line S1.
  • a second surface portion 43a2 may for example form an angle ⁇ a2 of the order of 8° with respect to the normal to the line S1.
  • a first surface portion 43b1 may for example form an angle ⁇ b1 of the order of 6° with respect to the normal to the line S2.
  • a second surface portion 43b2 may for example form an angle ⁇ b2 of the order of 8° with respect to the normal to the line S2. If the first and second blocking surface portions 43a, 43b are curved, the angles ⁇ a1, ⁇ a2, ⁇ b1, ⁇ b2 may be determined by considering tangents to said surface portions.
  • first and second blocking surface portions 43a, 43b are respectively adjacent to the first and second pulse input portions 41a, 41b. Indeed, the first blocking surface portion 43a joins the first pulse input portion 41a at a first resting beak 44a which separates these two functional and adjacent surfaces. In the same way, the second blocking surface portion 43b joins the second pulse input portion 41b at a second resting beak 44b which separates these two functional and adjacent surfaces.
  • the ends 121a, 221a of the first and second locking teeth 121, 221 are provided to be housed respectively within the first and second locking surface portions 43a, 43b, more particularly within the “V”s formed by the first and second locking surface portions 43a, 43b.
  • the ends 121a, 221a each have the form of a rounded surface.
  • the figure 2 represents a rest phase in which the end 221a of a second locking tooth 221 is supported on against the second surface blocking portion 43b, more particularly within the “V” formed by this same second surface blocking portion.
  • the pin 511a can be released from the first impulse surface 42a under the effect of the rotation of the balance 51 in a first direction of rotation (represented by the arrow of the figure 2 ), until this pin 511a regains contact with this same first impulse surface 42a under the effect of the rotation of the balance 51 in a second direction of rotation (represented by the arrow on the figure 7 ) and thus allow the release.
  • FIG. 7 illustrates a release phase in which the end 221a of the second locking tooth 221 has left the second locking surface portion 43b under the effect of the pin 511a which leads the impulse surface 42a until the end 221a passes the second resting beak 44b and comes into contact with the second impulse input portion 41b, so that this end 221a can communicate an impulse to the locking mobile 4 via the second impulse input portion 41b, and that the locking mobile 4 can thus communicate an impulse to the pin 511a via the second impulse surface 42b, as shown in FIG. figure 8 .
  • This impulse phase continues until a following rest phase (not shown) in which an end 121a of a first blocking tooth 121 of the first escape wheel 1 comes into contact against the first blocking surface portion 43a of the blocking wheel 4.
  • This second pulse input portion 41b is thus able to receive a pulse generated by the end 221a of the second blocking tooth 221 of the second escapement wheel 2.
  • the blocking wheel 4 also comprises a first pulse input portion 41a able to receive a pulse generated by an end 121a of a first blocking tooth 121 of the first escapement wheel 1.
  • These first and second pulse input portions 41a, 41b are preferentially convex when viewed from either escapement wheel, as can be seen in the plan view of the figure 5 .
  • Each of these first and second pulse input portions 41a, 41b comprises in particular a cylinder portion, in particular a cylinder portion whose directrix is an involute of a circle.
  • first and second pulse input portions 41a, 41b preferentially cooperate with rounded surfaces 121a, 221a of the first and second locking teeth 121, 221 having an asymmetrical profile.
  • Such a conformation of locking teeth makes it possible to optimize the geometries of the surfaces 121a, 221a and 41a, 41b with respect to the transmission of the torque to the oscillator 5.
  • asymmetrical first and second locking teeth 121, 221 make it possible to generate a large choice of possible geometries for the first and second pulse input portions 41a, 41b.
  • the locking mobile 4 may be symmetrical with respect to a plane P normal to the plane of the figure and passing through the fourth axis of rotation A4, in particular in the case where the surfaces 41a, 42a, 43a and 41b, 42b, 43b are identical. Manufacturing is easier, and the part may be mounted in one direction or another during assembly. Naturally, the locking mobile 4 may not be symmetrical with respect to the plane P.
  • FIG. 9 to 11 illustrate an exhaust device 10' according to a second embodiment.
  • the operation of this second embodiment is in all respects identical to that of the exhaust device according to the first embodiment, but the construction differs in certain aspects described below, and the references are modified by the simple addition of an apostrophe: '.
  • the first escapement wheel 1' and the second escapement wheel 2' each take the form of a flat component, here a single escape wheel.
  • the first escapement wheel 1' is pivotally mounted about a first axis of rotation A1', and it is arranged to be engaged with a drive train of the clockwork movement (not shown) to receive a driving force, and comprises a plurality of first blocking surfaces 121a' provided on first blocking teeth 121', as well as a first drive toothing 111' together forming a first main drive toothing.
  • the first main drive toothing is essentially planar, that is to say that the first blocking teeth 121' and the first drive toothing 111' are arranged in the same plane.
  • the first blocking teeth 121' have an asymmetrical profile, while the teeth of the first drive toothing 111' have a symmetrical profile.
  • the second escapement wheel 2' is pivotally mounted about a second axis of rotation A2', and comprises a plurality of second blocking surfaces 221a' provided on second blocking teeth 221', as well as a second drive toothing 211' together forming a second main drive toothing.
  • the second main drive toothing is essentially planar, that is to say that the second blocking teeth 221' and the second drive teeth 211' are arranged in the same plane.
  • the second locking teeth 221' have an asymmetrical profile, while the teeth of the second drive teeth 211' have a symmetrical profile.
  • the first main drive toothing (comprising the first drive toothing 111' and the first locking teeth 121') and the second main drive toothing (comprising the second drive toothing 211' and the second locking teeth 221') cooperate on the one hand with each other and on the other hand with the locking wheel 4' in the manner described below.
  • first drive toothing 111' and the second drive toothing 211' are provided to allow their meshing together.
  • the first drive toothing 111' is also provided to allow its meshing with the second locking teeth 221', and the second drive toothing 211' is also provided to allow its meshing with the first locking teeth 121'.
  • the first escapement wheel 1' and the second escapement wheel 2' have a synchronous movement.
  • first locking teeth 121' and the second locking teeth 221' like the first and second locking teeth 121, 221 of the first and second escapement wheels 1, 2 of the first embodiment, comprise an end respectively forming first and second locking surfaces 121a', 221a' each in the form of a rounded surface intended to cooperate with the first and second locking surface portions 43a', 43b' and with the impulse receiving means of the locking wheel 4'.
  • the head diameter DT2 of the first locking teeth 121' and the second locking teeth 221' is greater than the diameter DT1 of the teeth of the first drive toothing 111' and the second drive toothing 211', as shown in FIG. figure 10 .
  • the diameter DT2 may be of the order of 1.2.DT1. More generally, the following range of values may be provided: 1.1.DT1 ⁇ DT2 ⁇ 1.3.DT1.
  • the thickness e2 of the first locking teeth 121' and the second locking teeth 221' is advantageously different from the thickness e1 of the teeth of the first drive toothing 111' and the second drive toothing 211'.
  • the thickness e2 of the first locking teeth 121' and the second locking teeth 221' is greater than the thickness e1 of the teeth of the first drive toothing 111' and the second drive toothing 211' as also shown in FIG. figure 10 .
  • the thickness e2 can be of the order of 1.9.e1.
  • the following range of values can be provided: 1,8 . e 1 ⁇ e 2 ⁇ 2,5 . e 1 .
  • thickness we mean the distance measured between two flanks of a given tooth, measured at the level of a diameter DP corresponding to or substantially coinciding with the primitive diameter of the toothing considered.
  • first and second escapement wheels 1', 2' are carried out easily, without risk of error.
  • a given first locking tooth 121' can only be housed between two consecutive teeth of the second drive toothing 211', and vice versa.
  • the distribution of the teeth of the first and second main drive toothings around their respective axis means that only one angular indexing configuration is possible between the first and second escapement wheels 1', 2'.
  • first and second escapement mobiles 1', 2' are identical, the first and second escapement mobiles 1', 2' can thus be respectively mounted in reverse when assembling the exhaust device 10'.
  • the exhaust device according to the second embodiment is therefore particularly advantageous with regard to its compactness (a mobile escapement simply being reduced to an escape wheel), and its simplicity of assembly (each escapement wheel not resulting from an assembly, and the escapements not needing to be assembled together with a foolproofing system).
  • the diameter D4 is equal to approximately 1.3.D1 or 1.3.D2 (D1 and D2 being identical). More generally, D4 is preferably between D1 and 2.D1, or between D2 and 2.D2.
  • An exhaust device according to the present invention, and its manufacture, are capable of industrial application.
  • the locking mobile may be a single-piece component or result from an assembly.
  • the locking means could for example be attached to the locking mobile, in the form of pallets which may be made of a particular material.
  • the escapement wheels according to the first embodiment can form an assembly between a single-piece meshing wheel and a single-piece escapement wheel.
  • the escapement wheels according to the second embodiment can each be in the form of a single-piece wheel.
  • the locking wheel and/or the escape wheel may comprise all or part of the monocrystalline silicon regardless of its orientation, polycrystalline silicon, amorphous silicon, amorphous silicon dioxide, doped silicon regardless of the type and level of doping. It may also comprise silicon carbide, glass, ceramic, quartz, ruby or sapphire. Alternatively, it may be made of metal or a metal alloy, in particular an at least partially amorphous metal alloy. For example, such a component may comprise Ni or NiP.
  • an alloy such as that described in the patent application WO2017102661 can be used. It is also possible to plan to produce all or part of these parts in amorphous metal alloy (for example, it is possible to plan to form all or part of these parts in metallic glass).
  • the escapement device is designed to cooperate with a sprung balance, having a frequency of 3 or 4 Hz, or even higher such as 5, 6, 8 or 10 Hz.
  • the escapement device to maintain the oscillations of any type of oscillator, whether it is a balance-spring type oscillator as described above or any other type of oscillator, for example an inertial element guided and elastically returned by flexible blades.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Gears, Cams (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
EP24187717.4A 2023-07-12 2024-07-10 Auspuffvorrichtung für eine uhr Pending EP4492153A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23184967 2023-07-12

Publications (1)

Publication Number Publication Date
EP4492153A1 true EP4492153A1 (de) 2025-01-15

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EP24187717.4A Pending EP4492153A1 (de) 2023-07-12 2024-07-10 Auspuffvorrichtung für eine uhr

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US (1) US20250021050A1 (de)
EP (1) EP4492153A1 (de)
JP (1) JP7778860B2 (de)
CN (1) CN119310817A (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367462A1 (de) 2002-05-28 2003-12-03 Ulysse Nardin S.A. Hemmung für Uhren
WO2013182243A1 (fr) 2012-06-07 2013-12-12 Detra Sa Dispositif d'echappement pour piece d'horlogerie
WO2017102661A1 (fr) 2015-12-18 2017-06-22 Rolex Sa Procede de fabrication d'un composant horloger
WO2017109004A1 (fr) * 2015-12-21 2017-06-29 Detra Sa Dispositif d'échappement horloger et procédé de fonctionnement d'un tel dispositif
CH712631A1 (fr) * 2016-06-27 2017-12-29 Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A Echappement pour mouvement d'horlogerie.
CH719133A1 (fr) 2021-11-10 2023-05-15 Richemont Int Sa Résonateur pour mouvement horloger et oscillateur comportant un tel résonateur.
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CH712631A1 (fr) * 2016-06-27 2017-12-29 Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A Echappement pour mouvement d'horlogerie.
CH719133A1 (fr) 2021-11-10 2023-05-15 Richemont Int Sa Résonateur pour mouvement horloger et oscillateur comportant un tel résonateur.
EP4198641A1 (de) * 2021-12-20 2023-06-21 Montres Breguet S.A. Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst

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