EP2469358B1 - Übertragungsmechanismus von Achs- und Drehbewegungen zwischen zwei versetzt angeordneten Achsen - Google Patents

Übertragungsmechanismus von Achs- und Drehbewegungen zwischen zwei versetzt angeordneten Achsen Download PDF

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Publication number
EP2469358B1
EP2469358B1 EP11009075.0A EP11009075A EP2469358B1 EP 2469358 B1 EP2469358 B1 EP 2469358B1 EP 11009075 A EP11009075 A EP 11009075A EP 2469358 B1 EP2469358 B1 EP 2469358B1
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EP
European Patent Office
Prior art keywords
shaft
pinion
connecting piece
connection piece
bearing
Prior art date
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Active
Application number
EP11009075.0A
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English (en)
French (fr)
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EP2469358A2 (de
EP2469358A3 (de
Inventor
Jean-Philippe Dubois
Stéphane Berthoud
Takahiro Hamaguchi
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Dubois and Depraz SA
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Dubois and Depraz SA
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Publication of EP2469358A3 publication Critical patent/EP2469358A3/de
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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
    • G04B37/00—Cases
    • G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
    • G04B37/066—Divided stem (tige brisee)
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor

Definitions

  • the present invention relates to a mechanism for transmitting axial and rotary movements between two offset axes finding a particular application in a mechanism for setting the time and winding of a timepiece and more particularly to such a mechanism comprising a crown of winding operating a winding and setting time.
  • the present invention relates to such a mechanism whose winding stem and setting time is in two parts of axes located in parallel planes but offset with respect to each other.
  • Such mechanisms of winding and setting time rod stem two offset parts are particularly useful for complicated movements, including modular, because in such movements the winding stem is offset from the median plane of the movement. which is a disadvantage from the practical and especially aesthetic point of view.
  • the incumbent has developed such a mechanism for transmitting axial and rotary motion between two axes, in particular a winding and setting mechanism including a winding rod in two parts of axes located in parallel planes kinematically connected in rotation and in translation but which avoids a reversal of the direction of rotation of the two parts of the winding rod and which facilitates the casing of the movement in the watch case.
  • This mechanism comprises a movable assembly movable axially, the second portion of the rod carrying a second pinion and being arranged to be pivoted on said movable assembly but axially integral with the mobile assembly; the first portion of the rod being arranged to be pivoted on the movable assembly but axially integral therewith is secured to a first pinion; an odd number of pivots rotated on the moving assembly kinematically connecting the first pinion to the second pinion.
  • this mechanism has a disadvantage that is its size because the movable assembly consists of two plates secured together and in parallel planes using rivets. This moving assembly is necessarily thick and requires a large space between the middle of the watch case and movement. Another disadvantage of this construction is that it requires the use of a casing ring.
  • the object of the present invention is to provide a mechanism for transmitting axial and rotary movements between two parts of a staggered shaft which obviates the aforementioned drawbacks of the existing devices.
  • the subject of the present invention is a mechanism for transmitting axial and rotary movements between two parts of a rod of offset axes and comprising an axially displaceable moving assembly, the second part of the rod carrying a second pinion and being arranged to be pivoted on said mobile assembly but axially integral with this mobile assembly; the first part of the rod being arranged to be pivoted on the movable assembly but axially integral therewith and secured to a first pinion.
  • This mechanism is distinguished by the fact that the moving assembly consists of a single flat part and that this flat part comprises at least one elastic arm forming with the body of this flat part a bearing for the inner end of the second part of the stem.
  • the inner end of the second part of the rod is coupled by snapping into the bearing following a rotation of the plane connecting piece about the axis of the first part of the rod.
  • the timepiece comprises a box having a bottom 1, a caseband 2 and an ice 3 inside which is mounted a movement 4 optionally equipped with an additional mechanism 5 located between the movement 4 and the dial 7.
  • the first part 8 of the winding stem, part of the movement 4 is located much lower than the median plane of this timepiece due to the extra thickness due to the chronograph module 5.
  • the first part 8 of the stem winding includes near its end in the movement 4 a square to go up by a conventional wheel barrel movement when this part 8 of the winding stem is in the winding position. This square slides in a conventional manner in a mobile actuating a kinematic link rotating the switch of the movement for setting the time when the first portion 8 of the winding stem is in the pulled position setting time.
  • the middle part 2 is crossed by a tube 6 whose axis is situated in the median plane of the timepiece in which the second part 9 of the winding stem slides and rotates, the outer end of which has a thread 10 serving to fix the hub 11 of a winding crown.
  • the outer end of the first portion 8 of the winding stem is formed of a first pinion 13 from a workpiece with this first portion 8 of the winding stem. In the immediate vicinity of this first pinion 13 this first portion 8 of the winding stem has a groove 14. This outer end of the first portion 8 of the rod, formed by the first pinion 13, is free and does not cooperate in any way with the middle 2 of the box shows what greatly facilitates device assembly and after-sales service operations.
  • the inner end of the second portion 9 of the winding stem comprises a guide pin 15 and a stop 16 from a workpiece with this second portion of the winding stem.
  • This inner end of this second portion 9 of the winding stem further comprises a second pinion 17 coming from a workpiece with this second portion 9 of the winding stem separated from the abutment 16 by a groove 18.
  • the mechanism for transmitting axial and rotary movements between the two parts 8, 9 of the winding stem further comprises a movable connecting assembly consisting of a single flat part 19 having a general shape in a circular half-disk.
  • the thickness of this connecting piece 19 corresponds to the width of the grooves 14 and 18 of the first 8 and second 9 parts of the winding stem.
  • This connecting piece 19 comprises a bore 20 receiving the axis of a return 21 pivoted on this connecting piece 19.
  • This connecting piece 19 comprises an elastic support 22, of generally rectilinear shape in this particular embodiment, whose free end comprises a first cylindrical surface 23 and a first inclined face 24.
  • the cylindrical surface 23 is arranged opposite a second cylindrical surface 25 formed in the edge of the body of the connecting piece 19. Together these two cylindrical surfaces 23, 25 form a bearing for the first part 8 of the winding stem.
  • first inclined face 24 of the elastic support 22 of the connecting piece 19 Opposite the first inclined face 24 of the elastic support 22 of the connecting piece 19 is a second inclined face 26 of the connecting piece 19 adjacent to the second cylindrical surface 25.
  • this first part 8 of the winding stem is placed perpendicularly to the plane of the connecting piece 19 so that its throat 14 facing the first and second inclined faces 24, 26 of the connecting piece and then pushing the first portion 8 of the winding stem towards the bearing formed by the first and second cylindrical surfaces 23, 25 of the connecting piece 19.
  • the elastic support 22 deviates from the body of the connecting piece, allows the first portion 8 of the winding stem to penetrate into the bearing formed by the first and second cylindrical surfaces 23, 25. The elastic support 22 resumes its position. and maintaining the first portion 8 of the winding stem assembled to the connecting piece.
  • the assembly of the first part 8 of the winding stem on the connecting piece 19 is easy and fast, snap-fastening, and allows disassembly just as easy, especially since the free outer end of this first part 8 of the stem does not need to cooperate with the middle of the watch case.
  • the connecting piece 19 further comprises an elastic arm 27 having a curved shape whose free end, located substantially in the extension of the elastic support 22 of the piece 19, has a bearing face 28.
  • This elastic arm 27 forms all or part of the curved peripheral portion of the connecting piece 19.
  • the central portion of the piece 19 comprises a third cylindrical surface 29 while the elastic arm 27 has, facing this third cylindrical surface 29 a fourth cylindrical surface 30, corresponding to the third cylindrical surface 29 and forming therewith a bearing for the second part 9 of the winding stem.
  • the third 29 and the fourth cylindrical surface are respectively extended by a third 31 and a fourth 32 inclined face connecting the bearing formed by the third and fourth cylindrical surfaces 29, 30 to an enlarged passage 33.
  • the second part 9 of the winding stem can be assembled to the connecting piece 19 by clipping, positioning the groove 18 of this second part 9 of the winding stem between the third and fourth inclined faces 31, 32 and pushing the second part of the winding stem in the bearing formed by the third and fourth cylindrical surfaces 29, 30 which by elastically moving the elastic arm 27 of the connecting piece is coupled to it by snapping.
  • the second gear 17 of the second part of the winding stem meshes with the gear 21.
  • the second part 9 of the winding stem is thus pivoted on the connecting piece 19 while being fixed axially thereto. , the edge of the connecting piece 19 to the right of the third and fourth cylindrical surfaces 29, 30 being housed in the groove 18 of the second portion 9 of the winding stem.
  • This connecting piece 19 thus comprises in this embodiment two elastically deformable elements, the arm 27 and the support 22.
  • the first part 8 of the rod can be extracted laterally from the movement and separated from the connecting piece 19.
  • first 8 and second 9 parts of the winding stem are each in one piece however in variants the first 13 and second 17 gears could be reported on their respective rod portion.
  • the connecting piece 19 is made of spring steel but another material could be used as long as it allows the coupling of this connecting piece 19 by snapping to the first 8 and second 9 parts of the winding stem.
  • the widened passage 33 of the connecting piece 19 is not essential, it is simply necessary that the passage continuing the end of the third 31 and fourth 32 inclined faces to the end of the elastic arm 27 is wide enough to pass axially the stop 16 of the second portion 9 of the winding stem.
  • this mechanism has important advantages because its size, especially in the direction perpendicular to the The axes of the parts 8, 9 of the winding stem is very small, the connecting piece being thin. In addition, its realization and assembly are easy and the two parts of the winding stem rotate in the same direction.
  • Such a mechanism for transmitting axial and rotary movements between two axes located in two parallel planes can be applied in timepieces having a movement alone or with one or more additional mechanisms either for reassembly and setting the time, for activating a calendar or alarm function, etc.
  • the described mechanism can also be used in non-horological applications wherever it is necessary to transmit between two axes, located in parallel planes, axial and rotary movements.
  • references 21 there could be several references 21 forming a kinematic chain connecting the first pinion 13 to the second pinion 17, all these references 21 being pivoted on the single plane connecting piece 19.
  • FIGS. 8 and 9 illustrate a third embodiment of the transmission mechanism in which the movable assembly comprises only one elastic element 36.
  • this moving assembly is formed of the flat connecting piece 37 and comprises an elastic arm 36 corresponding to the elastic arm 27 of the first embodiment described.
  • the body of the flat connecting piece has a cylindrical surface 29 while the elastic arm 36 has a cylindrical surface 30 facing the cylindrical surface 29 carried by the body of the connecting piece 37.
  • These two cylindrical surfaces 29, 30 form a bearing for the groove 18 of the second portion 9 of the rod which carries the pinion 17 and which is constituted identically to that described in relation to the first embodiment of the transmission device.
  • This connecting piece 37 also has a recess 34 connecting the bearing 29, 30 to the periphery of said piece 37 flaring from said bearing 29, 30, wide enough to introduce the stop 16 of the second part 9 of the rod perpendicular to the plane of the connecting piece 37.
  • This connecting piece 37 further comprises a bore 35 intended to receive the end, of smaller diameter, of the first portion 8 of the rod on which the first pinion 13 is driven.
  • the free end of the elastic arm 36 has a bearing face 28 as in the previous embodiments.
  • the first portion 8 of the rod and the first pinion 13 are pres mounted on the connecting piece 37.
  • This pre-assembly is then introduced into the movement and this set is placed in the watch case.
  • the connecting piece is then moved angularly so that the recess 34 is facing the tube 6 through the middle of the watch case.
  • the second portion 9 of the rod is introduced through the tube 6 to place its groove 18 in the plane of the connecting piece 37.
  • a rotation of this connecting piece allows the snapping of the second part of the rod in the bearing 29, 30 of the connecting piece 37 by elastic deformation of the elastic arm 36 thereof.
  • one or more references could be pivoted on the connecting piece 37 to kinematically connect the first pinion 13 to the second pinion 17.
  • the curved elastic arm 27, 36 defines with the body of the connecting piece 19, 37 a concentric empty space at the bearing 23, 25, 35 receiving the first part 8 of the winding stem, which allows snapping the second portion 9 of the rod into the bearing 29, 37 of the connecting piece 19, 37 by rotation thereof about the axis of the first portion 8 of the rod.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Transmission Devices (AREA)

Claims (10)

  1. Übertragungsmechanismus von Achs- und Drehbewegungen zwischen zwei Teilen einer Welle mit versetzten Achsen, umfassend einen ersten (8) und einen zweiten (9) Teil einer Welle und eine bewegliche Anordnung, die axial verschiebbar ist, wobei der zweite Teil (9) der Welle ein zweites Ritzel (17) trägt und ausgelegt ist, um an der beweglichen Anordnung geschwenkt zu werden, aber axial mit dieser beweglichen Anordnung fest verbunden ist, wobei der erste Teil (8) der Welle ausgelegt ist, um an der beweglichen Anordnung geschwenkt zu werden, aber axial mit dieser fest verbunden ist und mit einem ersten Ritzel (13) fest verbunden ist,
    wobei die bewegliche Anordnung aus einem einzigen ebenen Verbindungsstück (19, 37) gebildet ist, umfassend einen Körper und mindestens ein elastisches Element (27, 36), das mit dem Körper dieses ebenen Stücks (19, 37) ein Lager (29, 30) bildet, in das das innere Ende des zweiten Teils (9) der Welle durch Einrasten infolge von einer Drehung des ebenen Verbindungsstücks (19, 37) um die Achse des ersten Teils (8) der Welle eingekuppelt wird.
  2. Mechanismus nach Anspruch 1, dadurch gekennzeichnet, dass das Verbindungsstück (19, 37) die allgemeine Form einer kreisförmigen Halbscheibe aufweist, wobei das mindestens eine elastische Element durch einen elastischen Arm (27, 36) gebildet ist, der den gesamten oder einen Teil des gekrümmten Umfangsbereichs des Verbindungsstücks (19, 37) bildet.
  3. Mechanismus nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Verbindungsstück (19) zwei elastische Elemente aufweist: den elastischen Arm (27, 36) und einen elastischen Träger (22).
  4. Mechanismus nach Anspruch 3, dadurch gekennzeichnet, dass jedes elastisches Element (22, 27, 36) eine zylindrische Oberfläche (23, 30) aufweist, die mit einer entsprechenden zylindrischen Oberfläche (25, 29) zusammenwirkt, die in dem Körper des Stücks (19, 37) ausgebildet ist, und zusammen das Lager (19, 30), das dazu bestimmt ist, das Ende des zweiten Teils (9) der Welle aufzunehmen, und ein zweites Lager (23, 25) zu bilden, das dazu bestimmt ist, das Ende des ersten Teils (8) der Welle aufzunehmen.
  5. Mechanismus nach Anspruch 2, dadurch gekennzeichnet, dass der zweite Teil (9) der Welle eine Kehle (18) aufweist, die durch elastische Verformung des elastischen Arms (27, 36) des Verbindungsstücks (19, 37) in das Lager (29, 30) eingefügt werden kann.
  6. Mechanismus nach Anspruch 4, dadurch gekennzeichnet, dass jeder Teil (8, 9) der Welle eine Kehle (14, 18) aufweist, die durch elastische Verformung des Verbindungsstücks (19) in die Lager eingefügt werden kann.
  7. Mechanismus nach einem der Ansprüche 1, 2 oder 5, dadurch gekennzeichnet, dass der erste Teil (8) der Welle in eine Bohrung des Verbindungsstücks (19) geschwenkt und mit dem ersten Ritzel (13) zusammengefügt wird.
  8. Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine oder mehrere Schwenkumlenkungen (21) auf der beweglichen Anordnung (19, 37) das erste Ritzel (13) mit dem zweiten Ritzel (17) verbinden.
  9. Zeitmessgerät, umfassend einen Mechanismus nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der zweite Teil (9) der Welle seitlich ein Uhrengehäuse durchquert und ausgelegt ist, um mit einem Betätigungsorgan verbunden zu werden, das von der Außenseite dieses Uhrengehäuses zugänglich ist, während der erste Teil (8) dieser Welle ausgelegt ist, um mit einem Uhrwerk verbunden zu werden, das in dem Uhrengehäuse angeordnet ist.
  10. Zeitmessgerät, dadurch gekennzeichnet, dass es einen Mechanismus nach einem der vorhergehenden Ansprüche aufweist und dass sein Gehäusemittelteil (2) mit dem ersten Teil (8) der Welle dieses Mechanismus nicht in Kontakt steht.
EP11009075.0A 2010-12-21 2011-11-15 Übertragungsmechanismus von Achs- und Drehbewegungen zwischen zwei versetzt angeordneten Achsen Active EP2469358B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02137/10A CH704250B1 (fr) 2010-12-21 2010-12-21 Mécanisme de transmission de mouvements axiaux et rotatifs entre deux axes décalés et pièce d'horlogerie comportant un tel mécanisme.

Publications (3)

Publication Number Publication Date
EP2469358A2 EP2469358A2 (de) 2012-06-27
EP2469358A3 EP2469358A3 (de) 2017-08-30
EP2469358B1 true EP2469358B1 (de) 2019-02-27

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EP11009075.0A Active EP2469358B1 (de) 2010-12-21 2011-11-15 Übertragungsmechanismus von Achs- und Drehbewegungen zwischen zwei versetzt angeordneten Achsen

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CH (1) CH704250B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2600214B1 (de) * 2011-12-01 2015-01-28 Agenhor SA Übertragungsmechanismus zwischen zwei Teilen eines Schaltgestänges für ein Uhrwerk
EP2915011B1 (de) * 2012-10-30 2017-08-16 Creations Horlogeres de Lully SA Timepiece
CH707555B1 (fr) 2013-02-08 2017-05-31 Dubois & Dépraz S A Mécanisme de transmission de mouvements axiaux et rotatifs entre deux axes décalés et pièce d'horlogerie comportant ce mécanisme.
EP3176650B1 (de) * 2015-12-02 2019-02-06 Nivarox-FAR S.A. Schutz einer uhrkomponente aus mikro-bearbeitbarem material
EP3382472A1 (de) 2017-03-30 2018-10-03 Rolex Sa Führungslager einer unruhwelle einer uhr
EP4198645A1 (de) * 2021-12-16 2023-06-21 ETA SA Manufacture Horlogère Suisse Multifunktionskorrekturvorrichtung für uhr, und uhr, die eine solche multifunktionskorrekturvorrichtung umfasst

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB773379A (en) * 1953-11-03 1957-04-24 Helmut Junghans Improvements in or relating to escapement regulators
EP0541828B1 (de) * 1991-11-04 1995-02-01 Dr. Johannes Heidenhain GmbH Vorrichtung zur Erzeugung oberwellenfreier periodischer Signale
DE19725884B4 (de) 1997-06-18 2010-04-29 Chopard International S.A. Uhr mit zweiteiliger Aufzug- und Stellwelle
DE60038282T2 (de) 2000-03-17 2009-03-12 Dubois & Depraz S.A. Getriebemechanismus für Drehbewegungen und Axialbewegungen zwischen zwei versetzten Achsen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CH704250A2 (fr) 2012-06-29
EP2469358A2 (de) 2012-06-27
EP2469358A3 (de) 2017-08-30
CH704250B1 (fr) 2015-01-30

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