EP3570117A1 - Hemmungsmechanismus für uhr - Google Patents

Hemmungsmechanismus für uhr Download PDF

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Publication number
EP3570117A1
EP3570117A1 EP18172526.8A EP18172526A EP3570117A1 EP 3570117 A1 EP3570117 A1 EP 3570117A1 EP 18172526 A EP18172526 A EP 18172526A EP 3570117 A1 EP3570117 A1 EP 3570117A1
Authority
EP
European Patent Office
Prior art keywords
anchor
rotation
regulating member
pallet
escapement
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.)
Withdrawn
Application number
EP18172526.8A
Other languages
English (en)
French (fr)
Inventor
M. Dominique RENAUD
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.)
Dominique Renaud SA
Original Assignee
Dominique Renaud 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 Dominique Renaud SA filed Critical Dominique Renaud SA
Priority to EP18172526.8A priority Critical patent/EP3570117A1/de
Priority to EP18195289.6A priority patent/EP3557335A1/de
Priority to PCT/EP2019/059890 priority patent/WO2019201977A1/fr
Priority to US17/048,325 priority patent/US11860575B2/en
Priority to JP2021506052A priority patent/JP7428695B2/ja
Priority to EP19718355.1A priority patent/EP3781993B1/de
Priority to CN201980040147.4A priority patent/CN112334843B/zh
Priority to PCT/EP2019/062338 priority patent/WO2019219679A1/fr
Priority to JP2020564263A priority patent/JP7292571B2/ja
Priority to EP19722926.3A priority patent/EP3794412B1/de
Priority to US17/055,330 priority patent/US11860576B2/en
Priority to CN201980039495.XA priority patent/CN112262349B/zh
Publication of EP3570117A1 publication Critical patent/EP3570117A1/de
Withdrawn legal-status Critical Current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
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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

Definitions

  • the present invention relates to the field of watchmaking. More particularly, it relates to a free escapement mechanism combining a direct exhaust and an indirect escape pattern.
  • the invention also relates to a timepiece comprising such an exhaust mechanism.
  • Anchor escapements are certainly the most common category of escapements in mechanical clockwork, at least in the so-called free escapement class.
  • a regulating member typically of the pendulum or balance sprung-balance type
  • an anchor escapement makes it possible to maintain the oscillations of said regulating member by transmitting, by regular pulses, at a determined frequency, a fraction of mechanical energy of the mechanical energy source of a said clock mechanism, usually comprising a barrel spring at least.
  • the escapement also makes it possible to count the oscillations of the regulating organ and hence to count the time.
  • anchor escapements Numerous variations of anchor escapements have been proposed in the state of the art and are well known to those skilled in the art in the field of watchmaking. Their limitations, just as well known, are mainly a propensity to disturb the isochronism of the oscillations of the regulating organ due to successive shocks and friction between the anchor and the regulating member on the one hand and the anchor and the mobile exhaust on the other hand, and a low mechanical efficiency, mainly for the same reasons. Indeed, it is usually considered that an anchor escapement transmits to the regulator member only a limited amount of the motive force that it receives from the drive source.
  • Anchor escapements are however acclaimed for their reliable operation and are also self-starting.
  • Robin anchor mechanisms have the advantage of better performance than Swiss lever escapement mechanisms.
  • the Robin exhaust is an exhaust that combines the advantages of the escapement escapement (high efficiencies and direct transmission of energy between the escape wheel and the balance) to those of the anchor escapement (better operating safety) . It is a direct impulse escapement of the escapement mobile to the balance wheel, the anchor of the exhaust mechanism constituting essentially a rocker equipped with two pallets of rest and which switches between two extreme rest positions of the escape wheel in outside the pulse phases.
  • the object of the present invention is also to provide an anchor escapement which combines the respective advantages of Swiss anchor escapements in terms of reliability and self-starting and those of direct impulse exhausts, in particular of the Robin type.
  • the invention also aims to provide a perfectly secure exhaust against shocks and risks of induced shutdown of the regulating member, even in case of micro-pulses.
  • the purpose of the invention is to propose a timepiece comprising such an escape mechanism.
  • the present invention proposes an anchor escapement mechanism according to claim 1, as well as a timepiece provided with such an escapement and defined in claim 9.
  • the escapement mechanism of the invention is however characterized with respect to the known escapements of the prior art in that it associates and combines with the conventional trace of a direct escapement a trace portion of an indirect escapement, as in a classic Swiss lever escapement.
  • the escape mechanism of the invention is such that at least one of the entry or exit pallets comprises, in the extension of its rest plane, an inclined plane arranged for provide an indirect pulse to said regulating member during a movement of said pallet in the path C of the escapement mobile rotation of the anchor on its axis.
  • the escapement mechanism of the invention has a "hybrid" character resulting from the combination of traces of a Swiss anchor escapement, which provides pulling and is self-starting, with the drawing of a direct free exhaust, as for example a Robin type exhaust. This greatly simplifies the setting and the implementation of a direct free escapement by a "dose" of Swiss anchor escape route, known, mastered and tested for centuries by watchmakers, without affecting essentially the performances , including efficiency, such a direct free exhaust.
  • the ends of said inclined plane delimit with respect to said axis of rotation of the anchor an angle ⁇ , which is advantageously between 0.5 and 5 °, preferably between 0.5 and 2 °.
  • the fork comprises two horns separated by a notch and is devoid of dart or the like.
  • Anti-rollover securing of the anchor relative to the regulating member is advantageously achieved by the arrangement of said horns of the symmetrical fork with respect to a straight line passing through the axis of rotation of the anchor and the center of the notch and extending from said notch in a circular arc radius of curvature R1, slightly greater than the radius of gyration of the ankle, and having at their free end a stud or finger protruding perpendicular to the median plane of the anchor in which extend the horns.
  • the mechanism also comprises, in a particular embodiment, a circular collar adapted to be secured to said regulator member, said collar being centered on the axis of rotation of said regulating member, the pin being integrated into said flange so that it moves without contact along an inner face of said horns during the rest phases of the escapement mobile.
  • the flange whose geometry may vary, has the function of providing a contact surface to the pads in case of shock during the additional arc of the regulator, said pads then abutting either on the inside or on the outside said flange.
  • the radius of curvature R1 is between 0.5 and 1.5 cm.
  • said flange has free ends beveled in a vertical plane or curved.
  • the present invention also provides in a second object a timepiece comprising an exhaust mechanism as previously stated, arranged to cooperate with a regulating member which are integral said pin and said pulse pallet.
  • the timepiece of the invention may comprise a balance spring-type or resonator-type regulator member rotatably mounted on a virtual knife pivot (x).
  • the present invention proposes a free escapement mechanism 1 of a new kind, designed and arranged to exploit and combine, in a direct-impulse free exhaust, the advantages of reliability, simplicity of adjustment and self-starting of a Swiss lever escapement well known to watchmakers for decades.
  • FIG. figure 1 A particular embodiment of such an exhaust mechanism 1 is shown in FIG. figure 1 , corresponding to the dead point of the exhaust 1.
  • the exhaust mechanism 1 is structurally similar to a type Robin exhaust but modified in various aspects as described below.
  • the exhaust mechanism comprises an escapement wheel 2 provided with pointed teeth 3 and rotatably mounted about a first axis of rotation X1.
  • this escapement mobile 2 is associated with an exhaust pinion (not shown) through which the escapement wheel 2 is coupled to the finishing gear and the driving source of a watch movement, for example a spring barrel, which thus transmits a driving torque to the escapement mobile 2, that it distributes sequentially to a regulating member 5 mounted to rotate about a second axis of rotation X2, in cooperation with an anchor 4, itself same mobile in rotation about a third axis of rotation X3, the axes of rotation X1, X2, X3 being parallel to each other.
  • a regulating member 5 mounted to rotate about a second axis of rotation X2
  • an anchor 4 itself same mobile in rotation about a third axis of rotation X3, the axes of rotation X1, X2, X3 being parallel to each other.
  • the regulating member 5 may consist of a spiral balance well known to those skilled in the watchmaking art or any other oscillating regulating organ, such as for example a knife resonator (x) as proposed by the applicant in the patent application WO 2016/012281 .
  • the anchor 4 acts as a rocker and comprises a board 41 on which are arranged an inlet pallet 10 and an outlet pallet 11, each having a rest plane 10p, 11p intended to alternately form a resting surface in abutment for the teeth 3 of the escapement mobile 2 in two extreme positions in rotation of the anchor 4 about its axis X3, said rest positions.
  • said anchor comprises a fork 43 disposed at the end of an arm 42 extending from the plate 41 along a straight line connecting the axis rotation X3 of the anchor 4 to the axis of rotation X2 of the regulating member 5.
  • the fork 43 comprises two horns 44, 45 separated by a notch 46 and devoid of dart, finger, or anti-rollover safety element similar. These horns 44, 45 are symmetrical with respect to the line connecting, in neutral, the axis of rotation X3 and the axis X2 of the regulator, which also passes through the center of the notch 46.
  • the anchor 4 cooperates with this fork 43, more particularly at its notch 46, with a pin 6 mounted integral with the regulating member 5, for example a coaxial plate of said regulating member 5 and which is further secured to a direct pulse pallet 9 which is propelled, at each alternation of the regulator 5 by a tooth 3 of the escapement 2.
  • the anchor stroke is limited by two pins 7, 8 which limit the angle A of travel of the anchor 4 between 5 and 6 ° with respect to the axis X3 of the anchor 4.
  • the entry pallet 10 and the output pallet 11, in any case at least the output pallet 11, comprise, in the extension of their respective rest plane 10p, 11p, an inclined plane 10i, 11i arranged for provide an indirect pulse to the regulating member 5 when said pallets 10, 11 intersect the trajectory C defined by the end of the teeth 3 of the escapement wheel 2 in rotation, during the rotation of the anchor 4 on its axis X3 between the two rest positions.
  • inclined planes 10i, 11i are advantageously formed on the resting pallets 10, 11 so that an angle ⁇ , called a micro-pulse angle, of a value of between 0.5 ° and 5 °, more particularly in The example shown between 1 ° and 2 °, preferably of the order of 1.5 ° is formed between its ends and the axis of rotation X3 of the anchor 4.
  • ⁇ called a micro-pulse angle
  • the pallets 10, 11 of the inlet and the outlet of the anchor 4 are advantageously fitted on the plate 41 so that the functions of rest and clearance of the anchor vis-à-vis the mobile of escapement 2, as well as the stroke safety of the latter vis-à-vis said pallets are optimized.
  • the pallets 10, 11 are thus positioned such that, in the rest positions, a first of the vanes is in contact with a tooth 3 of the escape wheel on its rest plane over a distance defining an angle ⁇ of rest of the order 2 ° to the axis of rotation X3 of the anchor while the other of pallets is spaced from the circle C of the escapement mobile a distance forming a safety angle ⁇ to the passage of the teeth 3 of the order 1.5 ° to the axis of rotation X3.
  • the pallets 10, 11 provide by their configuration and positioning, a slight draw, their inclined planes 10i, 11i providing a self-starting character to the mechanism of the invention and the micro-pulse at each alternation, characteristics of a Swiss anchor escapement.
  • an essential condition of the mechanism of the invention is defined such as: ⁇ 2 - ⁇ ⁇ ⁇
  • the escapement mechanism 1 of the invention proposes an anti-rollover safety device formed in a conjugated manner on the fork 43 of the anchor 4 and the regulating member 2, more particularly a flange secured to the regulating member 5.
  • the fork 43 of the anchor 4 is devoid of stinger between its horns 44, 45.
  • the low angular path traveled by the anchor 4 does not allow to consider as originally planned in the exhaust Robin , the implementation of such a sting cooperating a small balance plate according to the usual form of a Swiss lever escapement for example, the difficulty of adjusting the exhaust to avoid the risk of jamming being too important for servicing the exhaust at the industrial level.
  • the fork 43 of the anchor 4 of the mechanism 1 of the invention comprises two horns 44, 45 symmetrical with respect to a line passing through the axis of rotation X3 of the anchor and the center of the notch 46 and which extend from said notch 46 in an arc of a circle of radius of curvature R1, advantageously between 0.5 and 1.5 cm or more empirically slightly greater than the radius of gyration of the peg 6 secured to the regulating member 5 by relative to the axis of rotation X2 thereof.
  • Said horns 44, 45 further include at their free end a stud or finger 44e, 45e cylindrical protruding perpendicular to the median plane of the anchor 4 in which the plate 41, the arm 42 and the fork 43 extend.
  • the studs could have another geometry as well.
  • the horns 44, 45 thus form a guiding body of said peg 6 during the rest phases on the whole of the angular amplitude in rotation of the regulating member 5 if this is reduced and the oscillation frequency is high or almost the entire additional arc rotating said regulator member 5 if it is of the conventional balance spring type.
  • the anti-rollover device also comprises a circular collar 12 extending on either side of the pin 6 on the regulating member 5. Said collar 12 is centered on the axis X2 of rotation of the regulating organ.
  • the pin 6 is integrated in said flange so that it moves, normally without contact, along an inner face of said horns during the rest phases of the escapement mobile 2.
  • the total length of the flange 12 is preferably substantially equal to the total distance between the studs 44e, 45e of said horns 44, 45.
  • returns ( figures 18 , 21 ) of the flange 12 and the pin 6 between the horns in a normal operating configuration is provided by the free ends of the flange 12 which are advantageously bevelled in a vertical plane in order to pass said studs 44e, 45e to return between the horns 44, 45 after having possibly switched to the outside of the horns during the previous alternation.
  • This arrangement and conformation of the horns 44, 45 and the flange 12 thus provides optimum safety against possible overturning without adversely affecting the operation of the escapement mechanism 1.
  • FIGS. 4 to 15 represent the different operating phases of the escapement mechanism of the invention on two successive alternations of the regulating member 5 the respective directions of rotation of the escapement wheel 2, the anchor 4 and said regulator member being represented by arrows F1, F2, F3 on a first alternation respectively and arrows F4, F5, F6 on a second alternation respectively.
  • the figure 4 represents the mechanism 1 in the release position.
  • the peg 6 is in the notch 46 of the fork 43 of the anchor 4 and under the action of the regulating member 5 in rotation along F3 leaves the bearing against the pin 8 along F2, passing through the dead point to halfway ( figure 1 ) to arrive ( figure 5 ) in the indirect micro-pulse position via the input pallet 10.
  • the regulator 5 receives ( figure 6 ) its direct impulse to the pallet 9 by the escape wheel at the end of which ( figure 7 ) the fork falls ( figure 8 ) against the pin 7 and the anchor 4 is in the rest position, a tooth 3 of the escapement wheel 2 resting on the rest plane of the output pallet 11.
  • the regulating member 5 then travels its supplementary arc ( figure 9 ) and the anchor 4 is pulled by its output pallet 11 against the pin 7.
  • the regulating member 5 then returns in the opposite direction along F6 towards the release position ( figure 10 ) on the second alternation, thus releasing the anchor 4 of the pin 7, the pivoting anchor F5. then, passing through the neutral ( figure 11 ) undergoes a second indirect micro-pulse on the output pallet 11 ( figure 12 ) while the mobile exhaust is released in rotation following F4, after which the anchor 4 drops on the pin 8 ( figure 13 ), then reaching the second rest position ( Figure 14 ) or a tooth 3 of the escapement mobile abuts on the rest plane of the input pallet 10. The regulating member 5 then continues its course along F6 by making a blow to the end of its second alternation to then return next F1 to the release position of the figure 4 .
  • the escapement mechanism 1 of the invention thus provides a direct escape with a hybrid layout including indirect micro-pulses and a slight draw like a Swiss lever escapement in a Robin-type direct exhaust configuration without essentially disturbing the parameters and performance benefits of it but simplifying and reliable implementation, while providing optimum operational safety.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
EP18172526.8A 2018-04-17 2018-05-16 Hemmungsmechanismus für uhr Withdrawn EP3570117A1 (de)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP18172526.8A EP3570117A1 (de) 2018-05-16 2018-05-16 Hemmungsmechanismus für uhr
EP18195289.6A EP3557335A1 (de) 2018-04-17 2018-09-18 Direkter freier hemmungsmechanismus für uhr
PCT/EP2019/059890 WO2019201977A1 (fr) 2018-04-17 2019-04-17 Mécanisme d'échappement direct libre pour piece d'horlogerie
US17/048,325 US11860575B2 (en) 2018-04-17 2019-04-17 Free direct escapement mechanism for a timepiece
JP2021506052A JP7428695B2 (ja) 2018-04-17 2019-04-17 計時器のための自由ダイレクト脱進機構
EP19718355.1A EP3781993B1 (de) 2018-04-17 2019-04-17 Frei direkthemmung mechanismus für uhren.
CN201980040147.4A CN112334843B (zh) 2018-04-17 2019-04-17 用于钟表的自由直接式擒纵机构
PCT/EP2019/062338 WO2019219679A1 (fr) 2018-05-16 2019-05-14 Mécanisme d'échappement pour pièce d'horlogerie
JP2020564263A JP7292571B2 (ja) 2018-05-16 2019-05-14 時計用の脱進機
EP19722926.3A EP3794412B1 (de) 2018-05-16 2019-05-14 Hemmung mechanismus für uhren
US17/055,330 US11860576B2 (en) 2018-05-16 2019-05-14 Escapement mechanism for timepiece
CN201980039495.XA CN112262349B (zh) 2018-05-16 2019-05-14 用于钟表的擒纵机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18172526.8A EP3570117A1 (de) 2018-05-16 2018-05-16 Hemmungsmechanismus für uhr

Publications (1)

Publication Number Publication Date
EP3570117A1 true EP3570117A1 (de) 2019-11-20

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Family Applications (1)

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EP18172526.8A Withdrawn EP3570117A1 (de) 2018-04-17 2018-05-16 Hemmungsmechanismus für uhr

Country Status (1)

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EP (1) EP3570117A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113267984A (zh) * 2020-01-29 2021-08-17 精工时计株式会社 擒纵调速器、钟表用机芯和钟表
CN113495473A (zh) * 2020-03-18 2021-10-12 斯沃奇集团研究和开发有限公司 包括配备有磁性***的擒纵机构的钟表机芯
CN114995085A (zh) * 2021-03-02 2022-09-02 蒙特雷布勒盖股份有限公司 用于钟表机芯的自然式擒纵机构和包括这种擒纵机构的钟表机芯

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH101849A (fr) * 1922-10-25 1923-11-16 Pellaton Jules Echappement de mouvement de montre.
FR1009853A (fr) * 1948-07-02 1952-06-04 Mécanisme d'échappement perfectionné
EP1122617B1 (de) 2000-02-07 2007-08-01 Audemars Piguet (Renaud et Papi) SA Verriegelungsvorrichtung für eine Uhr
EP1983390A1 (de) * 2007-04-18 2008-10-22 ETA SA Manufacture Horlogère Suisse Ankerhemmung, die zwei Hemmungszahnräder umfasst
EP2444860A1 (de) 2010-10-21 2012-04-25 Audemars Piguet (Renaud et Papi) SA Reguliervorrichtung für Uhr
EP2407830B1 (de) 2010-07-15 2014-11-05 Rolex Sa Uhr
WO2016012281A1 (fr) 2014-07-21 2016-01-28 Dominique Renaud Sa Pivot à lame
EP3070537A1 (de) * 2015-03-18 2016-09-21 L. Leroy S.A. Zeitbasiseinheit, die eine hemmung mit direktimpuls und konstanter kraft umfasst

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH101849A (fr) * 1922-10-25 1923-11-16 Pellaton Jules Echappement de mouvement de montre.
FR1009853A (fr) * 1948-07-02 1952-06-04 Mécanisme d'échappement perfectionné
EP1122617B1 (de) 2000-02-07 2007-08-01 Audemars Piguet (Renaud et Papi) SA Verriegelungsvorrichtung für eine Uhr
EP1983390A1 (de) * 2007-04-18 2008-10-22 ETA SA Manufacture Horlogère Suisse Ankerhemmung, die zwei Hemmungszahnräder umfasst
EP2407830B1 (de) 2010-07-15 2014-11-05 Rolex Sa Uhr
EP2444860A1 (de) 2010-10-21 2012-04-25 Audemars Piguet (Renaud et Papi) SA Reguliervorrichtung für Uhr
WO2016012281A1 (fr) 2014-07-21 2016-01-28 Dominique Renaud Sa Pivot à lame
EP3070537A1 (de) * 2015-03-18 2016-09-21 L. Leroy S.A. Zeitbasiseinheit, die eine hemmung mit direktimpuls und konstanter kraft umfasst

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113267984A (zh) * 2020-01-29 2021-08-17 精工时计株式会社 擒纵调速器、钟表用机芯和钟表
CN113267984B (zh) * 2020-01-29 2024-03-08 精工时计株式会社 擒纵调速器、钟表用机芯和钟表
CN113495473A (zh) * 2020-03-18 2021-10-12 斯沃奇集团研究和开发有限公司 包括配备有磁性***的擒纵机构的钟表机芯
CN114995085A (zh) * 2021-03-02 2022-09-02 蒙特雷布勒盖股份有限公司 用于钟表机芯的自然式擒纵机构和包括这种擒纵机构的钟表机芯
CN114995085B (zh) * 2021-03-02 2024-02-09 蒙特雷布勒盖股份有限公司 用于钟表机芯的自然式擒纵机构和包括这种擒纵机构的钟表机芯

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