EP4009113A1 - Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk - Google Patents

Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk Download PDF

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Publication number
EP4009113A1
EP4009113A1 EP20211343.7A EP20211343A EP4009113A1 EP 4009113 A1 EP4009113 A1 EP 4009113A1 EP 20211343 A EP20211343 A EP 20211343A EP 4009113 A1 EP4009113 A1 EP 4009113A1
Authority
EP
European Patent Office
Prior art keywords
flexible
blades
movable element
pair
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
EP20211343.7A
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English (en)
French (fr)
Inventor
Mohammad Hussein Kahrobaiyan
Gianni Di Domenico
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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 Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP20211343.7A priority Critical patent/EP4009113A1/de
Priority to US17/527,558 priority patent/US20220171337A1/en
Priority to JP2021195158A priority patent/JP7356485B2/ja
Priority to CN202111461895.5A priority patent/CN114594668A/zh
Publication of EP4009113A1 publication Critical patent/EP4009113A1/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade 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
    • G04B17/04—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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • 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

Definitions

  • the present invention relates to a set of flexible guides for a rotary resonator mechanism.
  • the invention also relates to a clock movement provided with such a set of flexible guides.
  • the balance-spring constitutes the time base of the watch. It is also called resonator.
  • the Swiss lever escapement mechanism has a low energy efficiency (about 30%). This low efficiency stems from the fact that the movements of the escapement are jerky, that there are drops or lost paths to accommodate machining errors, and also from the fact that several components transmit their movement to each other via inclined planes that rub against each other.
  • an inertial element To constitute a mechanical resonator, an inertial element, a guide and an elastic return element are required.
  • a spiral spring acts as an elastic return element for the inertial element that constitutes a balance.
  • This balance wheel is guided in rotation by pivots which rotate in smooth ruby bearings. This causes friction, and therefore to energy losses and walking disturbances, which depend on the positions, and which it is sought to eliminate.
  • resonators comprising guides with flexible blades as elastic return means of the inertial element or elements.
  • Flexible guides with virtual pivot make it possible to significantly improve the efficiency of watchmaking resonators.
  • the simplest are cross-blade guides, consisting of two straight blades that cross each other. But there are also guides with uncrossed blades of the RCC type (for “Remote Center Compliance”), which have straight blades that do not intersect.
  • RCC Remote Center Compliance
  • An object of the invention is, therefore, to provide a flexible guide for a rotary resonator mechanism, which avoids the aforementioned problems.
  • the invention relates to a set of flexible guides for a rotary resonator mechanism, in particular of a clock movement, the set comprising a fixed support and two flexible guides extending substantially in the same plane or in two different parallel planes, the two flexible guides being arranged in series, the first flexible guide comprising a first element movable with respect to the fixed support, a first pair of flexible blades connected to the first movable element, so that the first movable element can move by bending the blades of the first pair in a circular movement around a first center of rotation, the second flexible guide comprising a second element movable with respect to the first movable element, a second pair of flexible blades connecting the second movable element to the first movable element, so that the second movable element can move relative to the first movable element by bending of s blades of the second pair in a circular motion around a second center of rotation.
  • the set of flexible guides is remarkable in that the first center of rotation and the second center of rotation are offset by a first predefined distance belonging to a plane of the set.
  • a set of guides with flexible blades is obtained with sufficient angular travel, more precise control of parasitic movements, and minimization of the effect of gravity on the operation of the resonator.
  • the blades of the first pair of blades are crossed.
  • the blades of the first pair of blades are uncrossed.
  • the blades of the second pair of blades are crossed.
  • the blades of the second pair of blades are uncrossed.
  • the assembly comprises a third flexible guide arranged in series downstream of the second flexible guide, the third flexible guide comprising a third movable element and a third pair of flexible blades connecting the third movable element to the second movable element , so that the third movable element can move relative to the second movable element by bending the blades of the third pair in a circular movement around a third center of rotation.
  • the third center of rotation is offset with respect to the second center of rotation by a second predefined distance belonging to a plane of the assembly.
  • the blades of the third pair of blades are crossed.
  • the blades of the third pair of blades are uncrossed.
  • a fourth flexible guide arranged in series, the fourth flexible guide comprising a fourth movable element and a fourth pair of flexible blades connecting the fourth movable member to the third movable member or carrier, so that the fourth movable member can move relative to the third movable member or carrier by bending the blades of the fourth pair of blades in a circular motion about a fourth center of rotation.
  • the fourth center of rotation is offset with respect to the third center of rotation by a third predefined distance belonging to a plane of the assembly.
  • the blades of the fourth pair of blades are crossed.
  • the blades of the fourth pair of blades are uncrossed.
  • the assembly is symmetrical with respect to a longitudinal line and/or with respect to a transverse line in the rest position of the assembly.
  • the first pair of flexible blades is connected to the fixed support.
  • the centers of rotation of the flexible guides are arranged on a straight line in the rest position of the assembly, the center of mass of the resonator preferably also being arranged on said straight line.
  • k 0.1, ..., N , N being the flexible guide numbers.
  • the invention also relates to a rotary resonator mechanism of a watch movement, the mechanism comprising an oscillating mass and a set of flexible guides according to the invention.
  • each flexible guide comprising a center of rotation 1, 2, 3, 4, 5, ..., N around which it rotates.
  • the flexible guides are arranged in series in different positions, so that the centers of rotation 1, 2, 3, 4, 5, ..., N of each flexible guide are offset from each other in position overall rest.
  • the rest position corresponds to an absence of movement of the flexible guides, the guides all being in a position of equilibrium.
  • no center of rotation has a position identical to another center of rotation.
  • Each center of rotation has a position defined with respect to the center of rotation of the preceding series flexible guide, except for the first flexible guide 1, which is determined with respect to the origin of a reference mark.
  • each center of rotation of a flexible guide is offset from the center of rotation of the previous flexible guide.
  • the center of rotation of the second flexible guide 2 is shifted by a distance r 2 relative to the center of rotation of the first flexible guide 1
  • the center of rotation of the third flexible guide 3 is offset by a distance r 3 with respect to the center of rotation of a second flexible guide 2, and so on until the last flexible guide N.
  • the assembly has a center of mass M disposed at a distance r N +1 of the center of rotation of the last flexible guide N.
  • all the centers of rotation are offset relative to each other, but according to different embodiments, certain centers of rotation may be superimposed.
  • the flexible guides are arranged so that the centers of rotation of all the flexible guides are arranged on the same straight line 6, as shown in figure 2 .
  • the centers of rotation 1,2, 3, 4 5, ..., N of each flexible guide are offset from each other by a predefined distance on the same line.
  • the distance r 1 is the distance between the center of rotation of the guide 1 and a fixed support 7 of the assembly.
  • the guides are identical with different rigidities, or else they are different with identical rigidities.
  • the value of the number k is chosen according to the number of guides and by following Pascal's triangle rule. Pascal's triangle has the following form: 1 1 ⁇ 1 1 ⁇ 2 1 1 ⁇ 3 3 ⁇ 1 1 ⁇ 4 6 ⁇ 4 1 1 ⁇ 5 10 ⁇ 5 1
  • the coefficients k of the third line are selected.
  • the coefficients k of the fourth line are selected.
  • the coefficients k of the fifth line are selected, and so on for the additional guides.
  • the last number is the center of mass offset of the assembly. When a coefficient has a negative sign, the offset is in the opposite direction on the straight line 6, with respect to the offsets whose coefficient k is positive.
  • the first center of rotation 1 of the first guide is arranged at a distance X from the support 7 with the coefficient 1 on the line 6.
  • the second center of rotation 2 of the second guide is offset by one distance -4X from the first center of rotation 1 on line 6.
  • the third center of rotation 3 of the third guide is offset by a distance 6X from the second center of rotation 2 on line 6.
  • the fourth center of rotation 4 of the fourth guide is offset by a distance -4X from the third center of rotation 3 on the line 6.
  • the assembly is configured so that the center of mass M of the assembly is disposed at a distance X from the fourth center of rotation 4 on the right 6.
  • This arrangement of the guides of the assembly makes it possible to further reduce the effect of gravity on the assembly, since the movement of the center of gravity is less than the previous variant.
  • the embodiments of the sets of figures 4 to 14 comprise flexible guides whose centers of rotation are arranged on the same line.
  • the figure 4 and 5 show a first 10 and a second 20 embodiment of a set of two flexible guides assembled in series.
  • the assembly 10, 20 comprises a support 11, 21 and two flexible guides each arranged substantially in one plane.
  • the support 11, 21 has the shape of an elongated rectangular plate arranged laterally with respect to the assembly 10, 20.
  • the first flexible guide comprises a first movable element 13, 23 relative to the support 11, 21 and a first pair of flexible blades 12, 22 connecting the support 11, 21 to the first movable element 13, 23.
  • the first movable element 13 , 23 can move relative to the support 11, 21 by bending the blades of the first pair 12, 22 in a circular movement around a first center of rotation 17, 27.
  • the first movable element 13, 23 has a tubular shape describing a rectangle, a large side 14, 24 of the rectangle being raised relative to the other sides to be in the plane of the second flexible guide.
  • the rectangle is arranged laterally, substantially parallel to the support 11, 21 in the rest position of the assembly.
  • the second flexible guide comprises a second mobile element 16, 26 relative to the first mobile element 13, 23 and a second pair of flexible blades 15, 25 connecting the second mobile element 16, 26 to the first mobile element 13, 23.
  • the second movable element 16, 26 can move relative to the first movable element 13, 23 by bending the blades of the second pair 15, 25 in a circular movement around a second center of rotation 18, 28.
  • the second movable element 16 , 26 has the shape of an elongated rectangular plate arranged laterally, substantially parallel to the support 11, 21 and to the first movable element 13, 23 in the rest position of the assembly 10, 20.
  • the flexible strips 12, 15, 22, 25 of the same pair intersect and are welded at their intersection.
  • the blades of the same pair are joined to the support 11, 21 or to the movable element 13, 16, 26, 23 on the same side.
  • the blades of the second pair 15, 25 are joined on the same raised side 14, 24 of the first movable element 13, 23.
  • the two flexible guides extend one after the other, while in the second embodiment of the assembly 20 of the figure 5 , the two flexible guides largely overlap, the second flexible guide being oriented in the other direction above the first guide with respect to the first embodiment 10.
  • the first center of rotation 17, 27 and the second center of rotation 18, 28 are offset by a first predefined distance for the two embodiments.
  • the centers of rotation are arranged substantially at the intersection of the pairs of blades 12, 15, 22, 25 of each flexible guide in the rest position of the assembly 10, 20. In the first embodiment 10, the distance is greater than in the second embodiment 20.
  • the third embodiment of the figure 6 is a variant of the second embodiment, in which the two pairs of crossed blades 32, 35 are not joined at their intersection.
  • the first movable element 33 has a rectangular shape, provided with a raised part 34 to be in the plane of the second flexible guide.
  • the two guides are mainly superimposed on each other, with an offset to offset the two centers of rotation 37, 38 by a first predefined distance.
  • the support 31 and the second movable element 36 of the assembly 30 are almost superimposed.
  • the figure 7 shows a fourth embodiment of an assembly 40 comprising a support 41 and four flexible guides arranged in series.
  • the guides are arranged substantially in the same plane.
  • the support 41 has the shape of an elongated rectangular plate arranged laterally with respect to the assembly 40.
  • the first flexible guide comprises a first movable element 43 relative to the support 41, and a first pair 42 of flexible blades connecting the support 41 to the first movable element 43.
  • the first movable element 43 can move relative to the support 41 by bending of the blades of the first pair 42 in a circular movement around a first center of rotation 47.
  • the first mobile element 43 has the shape of an arc of a circle whose curvature is oriented towards the support 41.
  • the second flexible guide comprises a second movable element 46 relative to the first movable element 43, and a second pair 45 of flexible blades connecting the second movable element 46 to the first movable element 43.
  • the second movable element 46 can move relative to the first movable element 43 by bending the blades of the second pair 45 in a circular motion around a second center of rotation 48.
  • the second movable element 46 has an H shape whose central section 39 is elongated.
  • the first center of rotation 47 and the second center of rotation 48 are offset by a first predefined distance.
  • the centers of rotation 47, 48 are arranged substantially at the intersection of a collinear line of the blades of each flexible guide in the rest position.
  • the assembly 40 includes a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guide comprises a third mobile element 51, and a third pair of flexible blades 49 connecting the third mobile element 51 to the second mobile element 46.
  • the third mobile element 51 can move relative to the second mobile element 46 by bending blades of the third pair 49 in a circular motion around a third center of rotation.
  • the third center of rotation is substantially at the same place as the second center of rotation 48.
  • the third movable element 51 is in the form of an arc of a circle disposed symmetrically to the other arc of a circle of the first movable element 43 with respect to the section 39 of the H body which is in the middle of the assembly 40.
  • the two arches are arranged in the H, on either side of the section 39.
  • the assembly comprises a fourth flexible guide arranged in series downstream of the third flexible guide, the fourth flexible guide comprising a fourth mobile element 53 and a fourth pair 52 of flexible blades connecting the fourth mobile element 53 to the third mobile element 51.
  • the fourth movable element 53 can move relative to the third movable element 51 by bending the blades of the fourth pair 52 in a circular motion around a fourth center of rotation 44.
  • the fourth center of rotation 44 is offset relative to the second and third center of rotation 48 by a second predefined distance, which is substantially equal to the first distance.
  • the fourth mobile element 53 has the shape of an elongated rectangular plate arranged parallel to the support 41 in the rest position of the assembly 40.
  • the curvature of the arc of the third mobile element 51 is oriented towards the fourth mobile element 53.
  • the support 41 and the fourth movable element 53 are arranged outside the H behind each arc.
  • the four flexible guides have uncrossed blades.
  • the blades of the same pair 42, 45, 49, 52 of blades are arranged on the same side of the support 41 and/or of the movable element 43, 46 51, 53 corresponding.
  • Two flexible guides are arranged symmetrically in pairs.
  • the assembly 40 of flexible guides is symmetrical with respect to a longitudinal line and a transverse line in the rest position, the two lines being substantially perpendicular.
  • an assembly 50 comprises a support 61 and three flexible guides arranged in series, each guide being arranged substantially in the same plane.
  • the support 61 has the shape of an elongated rectangular plate provided with a protrusion on which the blades are joined.
  • the first flexible guide comprises a first movable element 63 relative to the support 61, a first pair of flexible blades 62 connecting the support 61 to the first movable element 63.
  • the first movable element 63 can move relative to the support 61 by bending blades of the first pair 62 in a circular movement around a first center of rotation 57.
  • the first movable element 63 has a U-shape.
  • the second flexible guide comprises a second movable element 66 relative to the first movable element 63, and a second pair of flexible blades 65 connecting the second movable element 66 to the first movable element 63.
  • the second movable element 66 can move relative to the first movable element 63 by bending of the blades of the second pair 65 in a circular movement around a second center of rotation 58.
  • the second movable element 66 has a U-shape.
  • the assembly comprises a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guide comprises a third movable element 67 relative to the second movable element 66, and a third pair of flexible blades 59 connecting the third movable element 67 to the second movable element 66.
  • the third movable element 67 can move relative to the second mobile element 66 by bending the blades of the third pair 59 in a circular movement around a third center of rotation 54.
  • the third mobile element 67 has the shape of an elongated rectangular plate provided with a protrusion on which the blades are joined.
  • the third center of rotation 54 is offset from the second center of rotation 58 by a second predefined distance substantially equal to the first distance.
  • the first and the third flexible guide have uncrossed flexible blades.
  • the second flexible guide has crossed flexible blades, the blades being joined in their crossing.
  • the two U's face each other, so that the interiors of the U's face each other.
  • the two U's are joined to one another by the second pair of blades 65 forming an X, the ends of the blades being assembled inside the U's.
  • the support 61 and the third mobile element 67 are each arranged at the inside the U, the protrusions being directed towards the outside of the U.
  • the first 62 and the third pair 59 of blades are joined inside the U after the blades of the second pair 58.
  • the set of flexible guides is symmetrical with respect to a longitudinal line and with respect to a transverse line in the rest position, the two lines being substantially perpendicular.
  • the sixth embodiment of the figure 9 shows an assembly 60 comprising a support 71 and two flexible guides arranged in series in a map.
  • Support 71 has the shape of an elongated rectangular plate arranged laterally relative to assembly 60.
  • the first flexible guide comprises a first movable element 73 relative to the support 71, a first pair of flexible blades 72 connecting the support 71 to the first movable element 73.
  • the first movable element 73 can move relative to the support 71 by bending blades of the first pair 72 in a circular movement around a first center of rotation 77.
  • the first movable element 73 has a U shape, the inside of the U being oriented towards the support laterally.
  • the second flexible guide comprises a second movable element 76 relative to the first movable element 73, and a second pair of flexible blades 75 connecting the second movable element 76 to the first movable element 76.
  • the second movable element 76 can move relative to the first mobile element 73 by bending the blades of the second pair 75 in a circular movement around a second center of rotation 78.
  • the second mobile element 76 has the shape of an elongated rectangular plate provided with a protrusion on which the blades are joined.
  • the first center of rotation 77 and the second center of rotation 78 are offset by a first predefined distance.
  • the centers of rotation 77, 78 are arranged substantially at the intersection of a collinear line of the blades of each flexible guide in the rest position.
  • the first center of rotation 77 is formed at the level of the crossing, while the second center of rotation is formed at the level of the protrusion of the second mobile element 76.
  • the first flexible guide has crossed flexible blades, the blades being joined at their intersection.
  • the second flexible guide has uncrossed flexible blades.
  • the support and the U are joined to each other by the second pair of blades 75 forming an X, the ends of the blades being assembled inside the U on the one hand and on the side of the rectangular plate d 'other go.
  • the second movable element 76 is arranged inside the U, the protrusion being directed towards the outside of the U.
  • the first and the second pair of blades 72, 75 are joined inside the U.
  • assembly 70 is a variant of the fifth embodiment of the figure 9 , in which the flexible blades of the second pair 85 are crossed, the second movable element 86 being arranged perpendicular to the support 81 inside the U of the first movable element 83.
  • the first center of rotation 87 of the first pair of blades 82 is offset from the second center of rotation 88.
  • the eighth embodiment of an assembly 80 comprises a support 91 and three flexible guides arranged in series substantially in the same plane.
  • Support 91 has the shape of an elongated rectangular plate arranged laterally relative to assembly 80.
  • the first flexible guide comprises a first movable element 93 relative to the support 91, a first pair of flexible blades 92 connecting the support 91 to the first movable element 93.
  • the first movable element 93 can move relative to the support 91 by bending blades of the first pair 92 in a circular movement around a first center of rotation 97.
  • the first movable element 93 has a W shape with curved ends.
  • the second flexible guide comprises a second movable element 96 relative to the first movable element 93, and a second pair of flexible blades 95 connecting the second movable element 96 to the first movable element 93.
  • the second movable element 96 can move relative to the first movable element 93 by bending the blades of the second pair 95 in a circular motion around a second center of rotation 98.
  • the second movable element 96 also has a W-shape with curved ends, the W being arranged substantially parallel to the first movable element 93 in the inverted position.
  • the base of the Ws face each other.
  • the two Ws are joined to each other by the second pair 95 of blades forming an X, the ends of the blades being joined to the curved ends of the Ws.
  • the first and the third pair of blades are joined on the inside top of the W.
  • the assembly comprises a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guide comprises a third mobile element 89 with respect to the second mobile element 96, and a third pair of flexible blades 99 connecting the third mobile element 89 to the second mobile element 96.
  • the third mobile element 89 can move with respect to to the second movable element 96 by bending the blades of the third pair 99 in a circular motion around a third center of rotation 94.
  • the third movable element 89 has the shape of an elongated rectangular plate arranged substantially parallel to the first movable element 93 and to the Ws.
  • the first and the third flexible guide have pairs 92, 99 of uncrossed flexible blades.
  • the second flexible guide has a pair of crossed flexible blades 95, the blades being joined at their intersection.
  • the blades of the same pair of blades are arranged on the same side of the support and/or of the movable element.
  • the blades of the second pair of blades 95 are joined at the curved ends of each W.
  • the first center of rotation 97 and the second center of rotation 98 are offset by a first predefined distance.
  • the third center of rotation 94 is also offset from the second center 98 of rotation by a second predefined distance.
  • the centers of rotation 97, 98 are arranged substantially at the intersection of a collinear line of the blades of each pair 92, 95, 99 of each flexible guide in the rest position.
  • the second center of rotation 97 is formed at the level of the crossing
  • the first 98 and the third 94 center of rotation is formed at the level of the internal vertex of the W.
  • the assembly 80 of flexible guides is symmetrical with respect to a longitudinal line and with respect to a transverse line in the rest position, the two lines being substantially perpendicular.
  • the assembly 90 comprises a support 101 and three flexible guides arranged in series substantially in the same plane.
  • the support 101 has the shape of an elongated rectangular plate, arranged laterally with respect to the assembly 90.
  • the first flexible guide comprises a first movable element 103 relative to the support 101, a first pair of flexible blades 102 connecting the support 101 to the first movable element 103.
  • the first movable element 103 can move relative to the support 101 by bending of the blades of the first pair 102 in a circular movement around a first center of rotation 107.
  • the first movable element 103 has the shape of a triangle, one vertex of which comprises a rounded protrusion.
  • the second flexible guide comprises a second movable element 106 relative to the first movable element 103, and a second pair of flexible blades 105 connecting the second movable element 106 to the first movable element 103.
  • the second movable element 106 can move relative to the first mobile element 103 by bending the blades of the second pair 105 in a circular movement around a second center of rotation 108.
  • the second mobile element 106 has the shape of a triangle, one vertex of which comprises a rounded protrusion.
  • the protrusions have the function of allowing the attachment of the uncrossed blades.
  • the assembly 90 includes a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guidance comprises a third mobile element 110 with respect to the second mobile element 106, and a third pair of flexible blades 109 connecting the third mobile element 110 to the second mobile element 106.
  • the third mobile element 110 can move with respect to the second mobile element 106 by bending the blades of the third pair 109 in a circular motion around a third center of rotation 104.
  • the third movable element 110 has the shape of an elongated rectangular plate, substantially parallel to the support 101.
  • the blades of the same pair of blades are arranged on the same side of the support and/or of the movable element.
  • the flexible blades of the first 102 and of the third pair 109 of blades are uncrossed.
  • the flexible blades of the second pair 105 of blades are crossed.
  • the two triangles are arranged between the support 101 and the third mobile element 110, the protrusions being oriented towards the second mobile element 103 and the third 106 mobile element.
  • the first 102 and the third pair 109 of blades are joined to the protuberances, while the blades of the second part 105 are joined to the base of the triangles.
  • the assembly 90 of flexible guides is symmetrical with respect to a longitudinal line and with respect to a transverse line in the rest position, the two lines being substantially perpendicular.
  • the first center of rotation 107 and the second center of rotation 108 are offset by a first predefined distance.
  • the centers of rotation are arranged substantially at the intersection of a collinear line of the blades of each pair 102, 105, 109 of each flexible guide in the rest position.
  • the third center of rotation 104 is also offset with respect to the second center of rotation 108 by a second predefined distance.
  • the tenth embodiment of an assembly 100 comprises a support 111 and four flexible guides arranged in series.
  • the first and the second guide are arranged in a first plane, while the third and the fourth guide are arranged in a second plane substantially parallel to the first.
  • the support has the shape of an elongated rectangular plate arranged laterally with respect to the guide 100.
  • the first flexible guide comprises a first movable element 113 relative to the support 111, and a first pair of flexible blades 112 connecting the support 111 to the first movable element 113.
  • the first movable element 113 can move relative to the support 111 by bending of the blades of the first pair 112 in a circular movement around a first center of rotation 117.
  • the first movable element 113 has a substantially square plate shape.
  • the second flexible guide comprises a second movable element 116 relative to the first movable element 113, and a second pair of flexible blades 115 connecting the second movable element 116 to the first movable element 113.
  • the second movable element 116 can move relative to the first movable element 113 by bending the blades of the second pair 115 in a circular motion around a second center of rotation 118.
  • the second movable element 116 has a tubular structure in the shape of a rectangle delimiting the length and the width of the set 100 in the rest position of set 100.
  • the assembly 100 includes a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guide comprises a third movable element 120 relative to the second movable element 116, and a third pair of flexible blades 119 connecting the third movable element 120 to the second movable element 116.
  • the third movable element 120 can move relative to the second movable element 116 by bending the blades of the third pair 119 in a circular movement around a third center of rotation 123.
  • the third mobile element 120 has a square-shaped tubular structure whose dimensions are smaller than the rectangle of the second mobile element 116.
  • the assembly comprises a fourth flexible guide arranged in series downstream of the third flexible guide, the fourth flexible guide comprising a fourth mobile element 122 and a fourth pair of flexible blades 121 connecting the fourth mobile element 122 to the third mobile element 120.
  • the fourth movable element 122 can move relative to the third movable element 120 by bending the blades the fourth pair 121 in a circular motion around a fourth center of rotation 124.
  • the fourth movable element 122 has the shape of an elongated rectangular plate arranged laterally relative to assembly 100 in the rest position of assembly 100.
  • the first center of rotation 117 and the second center of rotation 118 are offset by a first predefined distance in the first plane.
  • the third center of rotation 123 is offset from the second center of rotation 118 by a second predefined distance in the second plane.
  • the fourth center of rotation 124 is offset from the third center of rotation 123 by a third predefined distance in the second plane.
  • the centers of rotation 117, 118, 123, 124 are arranged substantially at the intersection of a collinear line of the blades of each pair of flexible blades in the rest position of the assembly 100.
  • the blades of the same pair of blades are arranged on the same side of the support and/or of the movable element.
  • Two flexible guides are arranged symmetrically in pairs.
  • the assembly 100 of flexible guides is symmetrical with respect to a longitudinal line and a transverse line in the rest position, the two lines being substantially perpendicular.
  • the invention also relates to a rotary clockwork resonator mechanism, not shown in the figures.
  • the resonator mechanism is provided with an oscillating mass and a set of flexible guides such as one of the embodiments described above.
  • the oscillating weight is, for example, an annular balance wheel or a bone-shaped member, which is assembled on the last movable element in series due to the assembly.
  • the figure 14 shows a fourth embodiment of an assembly 110 comprising a support 131 and four flexible guides arranged in series.
  • the guides are arranged substantially in the same plane.
  • Support 131 has the shape of an elongated rectangular plate arranged laterally relative to assembly 110.
  • the first flexible guide comprises a first movable element 133 relative to the support 131, and a first pair 132 of flexible blades connected to the first movable element 133.
  • the first movable element 133 can move by bending the blades of the first pair 132 in a circular movement around a first center of rotation 137.
  • the first movable element 133 has an H shape whose central section 139 is elongated.
  • the second flexible guide comprises a second movable element 136 relative to the first movable element 133, and a second pair 135 of flexible blades connecting the second movable element 136 to the first movable element 133.
  • the second movable element 136 can move relative to the first mobile element 133 by bending the blades of the second pair 135 in a circular movement around a second center of rotation 138.
  • the second mobile element 136 has the shape of an arc of a circle whose curvature is not oriented towards bracket 131.
  • the first center of rotation 137 and the second center of rotation 138 are offset by a first predefined distance.
  • the centers of rotation 137, 138 are arranged substantially at the intersection of a collinear line of the blades of each flexible guide in the rest position.
  • the assembly 110 includes a third flexible guide arranged in series downstream of the second flexible guide.
  • the third flexible guide comprises a third mobile element 141, and a third pair of flexible blades 139 connecting the third mobile element 141 to the second mobile element 136.
  • the third mobile element 141 can move relative to the second mobile element 136 by bending blades of the third pair 139 in a circular motion around a third center of rotation.
  • the third center of rotation is substantially at the same place as the second center of rotation 138.
  • the third movable element 141 has the shape of an elongated rectangular plate arranged parallel to the support 131 in the rest position of the assembly 40.
  • the curvature of the arc of the second mobile element 136 is oriented towards the third mobile element 141.
  • the support 131 and the third mobile element 141 are arranged outside the H behind each arc.
  • the assembly comprises a fourth flexible guide arranged in series upstream of the first flexible guide, the fourth flexible guide comprising a fourth mobile element 143 and a fourth pair 142 of flexible blades connecting the fourth mobile element 143 to the support 131.
  • the fourth movable element 143 can move relative to the support 131 by bending the blades of the fourth pair 142 in a circular movement around a fourth center of rotation.
  • the fourth center of rotation is substantially at the same place as the first center of rotation 137.
  • the blades of the first pair of blades 132 connect the fourth movable element 143 to the first movable element 133, to allow the first movable element 133 to move by relative to the fourth movable element 143 by bending the blades of the first pair of blades 132 in a circular movement around the first center of rotation 137.
  • the fourth movable element 143 is in the form of an arc of a circle whose curvature is oriented towards the support 131.
  • the fourth movable element 143 is arranged symmetrically to the other arc of a circle of the second movable element 136 with respect to the section 139 of the H-shaped body which is in the middle of the assembly 110.
  • the two arcs are arranged in the H, on either side of section 139.
  • the four flexible guides have uncrossed blades.
  • the blades of the same pair 132, 135, 139, 142 of blades are arranged on the same side of the support 131 and/or of the corresponding movable element 133, 136, 141, 143.
  • Two flexible guides are arranged symmetrically in pairs.
  • the assembly 110 of flexible guides is symmetrical with respect to a longitudinal line and a transverse line in the rest position, the two lines being substantially perpendicular.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)
  • Bearings For Parts Moving Linearly (AREA)
EP20211343.7A 2020-12-02 2020-12-02 Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk Pending EP4009113A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20211343.7A EP4009113A1 (de) 2020-12-02 2020-12-02 Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk
US17/527,558 US20220171337A1 (en) 2020-12-02 2021-11-16 Flexible guide assembly for a rotating resonator mechanism, particularly for a timepiece movement
JP2021195158A JP7356485B2 (ja) 2020-12-02 2021-12-01 回転共振子機構用の、詳細には計時器ムーブメント用の可撓性ガイド組立体
CN202111461895.5A CN114594668A (zh) 2020-12-02 2021-12-02 尤其用于时计机芯的旋转谐振器机构的柔性引导件组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20211343.7A EP4009113A1 (de) 2020-12-02 2020-12-02 Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk

Publications (1)

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EP4009113A1 true EP4009113A1 (de) 2022-06-08

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EP20211343.7A Pending EP4009113A1 (de) 2020-12-02 2020-12-02 Gesamtheit von flexiblen führungen für sich drehenden resonatormechanismus, insbesondere für uhrwerk

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US (1) US20220171337A1 (de)
EP (1) EP4009113A1 (de)
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CN (1) CN114594668A (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911012A1 (de) 2014-02-20 2015-08-26 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
EP3035126A1 (de) * 2014-12-18 2016-06-22 The Swatch Group Research and Development Ltd. Resonator einer Uhr mit sich kreuzenden Blättern
US20180319517A1 (en) 2015-11-06 2018-11-08 Almatech Sa Large angle flexible pivot
EP3430478A1 (de) * 2016-03-14 2019-01-23 LVMH Swiss Manufactures SA Mechanismus für eine uhr und uhr mit solch einem mechanismus
EP3451072A1 (de) 2017-08-29 2019-03-06 The Swatch Group Research and Development Ltd Isochrones drehgelenk für uhrresonator
US20190120287A1 (en) 2017-10-24 2019-04-25 Csem Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement Pivot mechanism with flexible elements for large-amplitude rotation guiding and pivot assembly comprising a plurality of said pivot mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3035127B1 (de) 2014-12-18 2017-08-23 The Swatch Group Research and Development Ltd. Stimmgabeloszillator einer stimmgabelgesteuerten Uhr
CH713055A2 (fr) 2016-10-18 2018-04-30 Eta Sa Mft Horlogere Suisse Mouvement d'horlogerie comportant un mécanisme résonateur et un mécanisme d'échappement coopérant en transmission continue.
FR3071075B1 (fr) * 2017-09-14 2019-09-20 Lvmh Swiss Manufactures Sa Dispositif pour piece d'horlogerie, mouvement horloger et piece d'horlogerie comprenant un tel dispositif

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911012A1 (de) 2014-02-20 2015-08-26 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
EP3035126A1 (de) * 2014-12-18 2016-06-22 The Swatch Group Research and Development Ltd. Resonator einer Uhr mit sich kreuzenden Blättern
US20180319517A1 (en) 2015-11-06 2018-11-08 Almatech Sa Large angle flexible pivot
EP3430478A1 (de) * 2016-03-14 2019-01-23 LVMH Swiss Manufactures SA Mechanismus für eine uhr und uhr mit solch einem mechanismus
EP3451072A1 (de) 2017-08-29 2019-03-06 The Swatch Group Research and Development Ltd Isochrones drehgelenk für uhrresonator
US20190120287A1 (en) 2017-10-24 2019-04-25 Csem Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement Pivot mechanism with flexible elements for large-amplitude rotation guiding and pivot assembly comprising a plurality of said pivot mechanism

Also Published As

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US20220171337A1 (en) 2022-06-02
CN114594668A (zh) 2022-06-07
JP2022088336A (ja) 2022-06-14
JP7356485B2 (ja) 2023-10-04

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