EP2957964B1 - Tilting coupling device for timepiece - Google Patents

Tilting coupling device for timepiece Download PDF

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Publication number
EP2957964B1
EP2957964B1 EP15171351.8A EP15171351A EP2957964B1 EP 2957964 B1 EP2957964 B1 EP 2957964B1 EP 15171351 A EP15171351 A EP 15171351A EP 2957964 B1 EP2957964 B1 EP 2957964B1
Authority
EP
European Patent Office
Prior art keywords
wheel
coupling
rotation
clutch
axis
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.)
Active
Application number
EP15171351.8A
Other languages
German (de)
French (fr)
Other versions
EP2957964A3 (en
EP2957964A2 (en
Inventor
Marc-Olivier Pages
Giulio Papi
Lauren Musitelli
Johan Montet
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.)
Manufacture dHorlogerie Audemars Piguet SA
Original Assignee
Manufacture dHorlogerie Audemars Piguet SA
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Application filed by Manufacture dHorlogerie Audemars Piguet SA filed Critical Manufacture dHorlogerie Audemars Piguet SA
Publication of EP2957964A2 publication Critical patent/EP2957964A2/en
Publication of EP2957964A3 publication Critical patent/EP2957964A3/en
Application granted granted Critical
Publication of EP2957964B1 publication Critical patent/EP2957964B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/023—Mechanical devices for setting the time indicating means by making use of the winding means changing of the winding position to the setting position and vice versa is done with an independant part of the winding or setting 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • G04B27/045—Changing the winding position to the setting position and vice versa is done with an independant part of the winding or setting 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/06—Mechanical devices for setting the time indicating means by making use of the winding means with rocking bar
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0828—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement acting in the plane of the movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
    • G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
    • G04F7/08—Watches or clocks with stop devices, e.g. chronograph
    • G04F7/0823—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement
    • G04F7/0838—Watches or clocks with stop devices, e.g. chronograph with couplings between the chronograph mechanism and the base movement involving a tilting movement

Definitions

  • the present invention relates to a clutch device for timepieces, especially for time-setting devices or chronograph watches, the device comprising an input wheel, a clutch wheel meshing with the wheel of a clutch. inlet, and at least a first output wheel, said clutch wheel being arranged substantially coplanar with the plane of rotation of the input wheel and the first output wheel as well as arranged so that it is adapted to tilt relative to said plane of rotation so as to occupy at least a first clutch position in which the clutch wheel meshes with the first output wheel and a second clutch position in which the wheel of the clutch is decoupled from the first output wheel, the device comprising a movable element for controlling the change of position between the first - and the second position of the clutch wheel .
  • the invention relates to timepieces having a mechanical movement, including mechanical wristwatches.
  • This type of timepiece is often equipped with several functions; particularly with regard to the parts of Haute Horlogerie, and thus regularly has a control device having three positions, corresponding for example to the reassembly of the watch, to the rapid correction of the calendar, and to the setting of the time, thus requiring a clutch to assign the various functions to the corresponding positions of the control device.
  • the conventional clutch used for this case consists of a correction lever controlled by a control rod and movable by pivoting a short distance which is equivalent to a translation.
  • the scale includes a reference embedded clutch adapted to mesh with, respectively to be disengaged from a corrector wheel, depending on the position of the rocker.
  • the clutch by translation has the disadvantage that it is possible that it causes, in certain circumstances, parasitic rotation of the corrector wheel related to the movement of the onboard gear along the circumference of the corrector wheel. This can for example produce a slight jump, forwards or backwards, of the minute hand when the user of the timepiece pushes the control rod after having made the time setting, which obviously constitutes a disadvantage.
  • this type of clutch takes up a lot of room and is not suitable for use in extra-flat movements.
  • An additional function that includes many timepieces consists of a chronograph mechanism. This function also requires a clutch, the conventional clutch mechanism used for this application is also based on a movement equivalent to a translation of an onboard clutch return.
  • the translation of the onboard clutch return generates the engagement, respectively the stopping of the measured time measurement by establishing, respectively by interrupting the kinematic connection between the finishing gear of the movement of the timepiece and the chronograph wheel.
  • this causes problems because, as in the case described above of the time setting, the translation of the onboard clutch return can, under certain circumstances, cause parasitic rotation of the chronograph wheel and, by therefore, a jump forward of the chronograph hand. If this has no influence on the reading of the timed time, because the gear set is overtaken later, it is an aesthetic problem at the time of the triggering of the chronograph that should be eliminated.
  • EP 2 060 958 discloses, in the context of a clutch for a chronograph mechanism, a toothed wheel having a toothing of a specific shape, including having teeth having a foot and a head of particular shape.
  • the axis of the clutch return is placed, contrary to the arrangement of a conventional chronograph, on the right between the axes of the field wheel and the chronograph wheel and the shape of the clutch rocker , arranged so as to be able to bring said gear in gear with the chronograph wheel or away, allows to obtain a translation of the clutch return during its movement between its two positions disengaged and engaged oriented almost perpendicular to the circumference of the chronograph wheel.
  • the clutch return does not translate along the circumference of the chronograph wheel, which limits the spurious rotation mentioned above.
  • This arrangement requires complicated teeth on the clutch return and increases the cost of production.
  • the space occupied by this mechanism remains considerable and the mechanism requires a specific arrangement of its parts relative to each other, which limits its use both for other functions than a chronograph that in extra movements -Dishes.
  • the patent US 6,773,157 discloses a time correction device comprising a winding rod cooperating, on the one hand, in a conventional manner with a minute and hour handwheel, by means of a first correction wheel.
  • the device comprises a second correction wheel which is mounted on a fixed axis having partially the shape of a cone so that the second wheel of correction may be inclined around this axis, depending on the position of a control spring controlled by the rod and cooperating with another spring exerting a prestressing force on the second correction wheel.
  • the second correction wheel meshes with or not with a part of said correction train, and when it is in meshing position, the winding rod does not mesh with said first correction wheel.
  • this device can, in principle, be used for several applications such as the quick adjustment of the hour hand independently of the minute hand or the correction of the date, the mechanism is even more bulky than a conventional clutch and does not lend itself to integration in a flat motion.
  • the use of a fixed frustoconical axis of rotation in combination with a control of the inclination of the clutch gear mounted on this axis by several springs does not seem to ensure reliable operation.
  • the time correction device according to DD 127,363 comprises a clutch gear which, under the influence of the winding stem, can tilt about its axis in order to be in contact with either the winding wheel or with the time setting wheel. Because the clutch gear is mounted on a pivoting lever in a cage, it is oriented substantially vertically with respect to the winding wheel and the time setting wheel, which directly implies a large space requirement at height. . The mechanism is not suitable for integration in extra-flat movements.
  • this clutch or the corresponding correction device can only control two functions and is therefore not suitable for high-end timepieces with several functions.
  • the document US 413,654 describes a winding and time-setting system that includes a clutch wheel that can tilt around a fixed axis of rotation.
  • This clutch wheel makes it possible to transmit the movement of the winding rod either to the winding wheel or to a wheel of the time-setting train, this according to its inclination which is controlled by the winding rod. using a ring concentrically mounted relative to the clutch wheel and having a lip cooperating with the rod.
  • this device can control only two functions and its operation does not seem to be reliable since the inclined position of the clutch wheel is not obtained, following the release of the clutch wheel, by constraint but by the action of the gravitational force, which changes according to the orientation of the corresponding timepiece.
  • the document FR 436,356 proposes a device having a double tilting pinion fixed to a tilting axis perpendicular to the plane of rotation of the input and output wheels, located in two different planes, the inclination of the pin being caused by the movement of a controlled spring by a moving part.
  • the device is obviously not suitable for use in an ultra-flat movement and its control is apparently not very reliable.
  • the document CH 2,547 also discloses a double tilting pinion fixed to a tilting axis perpendicular to the parallel remote rotation planes of the input and output wheels, the ends of the tilting axis being fixed in a fork rotatably housed and perpendicular to said axis.
  • EP 0 261 243 and EP 1 288 743 disclose a double rocking pinion fixed to a tilting axis perpendicular to the remote planes of rotation of the input and output wheels, the inclination of the axis being in both cases caused by the displacement of a movable control member.
  • the latter is door, according to EP 0 261 243 , one end of the tilting axis is constrained, according to EP 1 288 743 this end, mounted otherwise freely, by pressure.
  • the document EP 0 261 243 further specifying a condition on the minimum length of the tilting axis to allow proper operation of the clutch. These devices can also control only one function that can be engaged or triggered.
  • the purpose of the present invention is therefore to overcome, at least partially, the disadvantages of known devices and to make a clutch device for timepieces which has a small footprint, in particular to allow integration into movements extra-flat, and which limits the problems of parasitic rotation at the time of clutching.
  • the device should be suitable for use in the context of several horological applications, in particular for time-setting devices and chronograph watches, and have a simple and robust structure, in addition to guarantee a cost reasonable production, as well as reliable operation.
  • the present invention provides a clutch device of the aforementioned type which is distinguished by the features set forth in claim 1.
  • the clutch wheel of the device according to the present invention comprises an axis of rotation capable of being inclined relative to the normal to said plane of rotation of the input wheel and the first output wheel being pivotably mounted at each of its ends, at least one end of said axis of rotation being mounted on said movable element, and the ratio between the diameter of the clutch wheel and the height of the axis of rotation between its intersection with said plane of rotation and the end mounted on the movable element being greater than 1.5: 1.
  • the axis of rotation of the clutch wheel is forced in two places while being tilting.
  • it is possible to arrange the clutch wheel tilting manner allowing a tilting clutch that eliminates spurious rotation of the output wheel grafted conventional mechanisms, since the clutch wheel engages in the output wheel almost vertically and not radially.
  • This is completed while ensuring a construction using only a very limited number of parts and, above all, by decreasing the height of the device, since the clutch or disengagement is achieved mainly by providing the clutch wheel. a diameter large enough to allow its disengagement of at least the first output wheel.
  • the device is very compact, so as to lend itself to integration in extra-flat movements, and has a simple and safe operation.
  • the other end of said axis of rotation is constrained by a fixed part of the frame of the timepiece, which reinforces the aforementioned advantages.
  • the invention also relates to a time setting device and a chronograph mechanism comprising such a clutch device.
  • the latter is adapted to be used in several horological applications and therefore has great flexibility both in its layout and in its use.
  • the present invention relates to a clutch device intended to be integrated in a timepiece, preferably in a wristwatch having a mechanical movement.
  • a clutch device intended to be integrated in a timepiece, preferably in a wristwatch having a mechanical movement.
  • timepiece preferably in a wristwatch having a mechanical movement.
  • a clutch device can be integrated with modules of such a timepiece, such as a time-setting device, a chronograph mechanism, a split-seconds mechanism, or other devices. mechanisms that are likely to be equipped with a clutch device according to the present invention.
  • the Figures 1a, 1b, and 1c are schematic views from above, from below, respectively in perspective of such a device for setting the time, when the clutch device according to the present invention integrated in this time setting device is in a first clutch position
  • the Figures 2a, 2b, and 2c show the time setting device when the clutch device is in a second clutch position.
  • the setting device 10 comprises a winding stem 10.1.
  • the winding stem 10.1 is able to occupy at least three axial control positions.
  • a winding pinion 10.2 whose axial position relative to the frame of the timepiece is fixed, is mounted freely rotatably around the winding stem 10.1 and a sliding pinion 10.3 is slidably mounted on the stem of the watch.
  • the winding pinion 10.2 comprises a radial toothing meshing with a gear kinematically connected to the barrel of the movement of the corresponding timepiece and a Breguet toothing oriented towards the sliding pinion 10.3, while the latter comprises a Breguet toothing which is oriented in the direction of the winding pinion 10.2 and a ring gear which is oriented in the opposite direction.
  • the sliding pinion 10.3 is rotatably connected to the winding stem 10.1, for example by a section of specific shape on a part of the length of the rod 10.1 and a correspondingly shaped opening in the sliding pinion 10.3, and adapted to mesh with said winding pinion 10.2 when the winding stem 10.1 is in its first axial control position, which normally corresponds to the winding position of the barrel of the corresponding timepiece.
  • the time setting device 10 also comprises a correction feedback 1.1 which can be fixed on a bridge of the corresponding timepiece and forms an input wheel. This correction return 1.1 is capable of meshing with said ring gear of the sliding pinion 10.3 when the winding stem 10.1 is in its second - or third axial control position.
  • the time setting device 10 comprises a pull tab 10.4 controlled by the winding stem 10.1 and for moving, by means of a control lever 10.5 also called sliding pinion, the sliding pinion 10.3 between a first winding position in which the sliding pinion 10.3 meshes with said winding pinion 10.2, when the winding stem 10.1 is in its first axial control position, and a second correction position in which the ring gear of the sliding pinion 10.3 meshes with said correction return 1.1, when the winding stem 10.1 is in its second - or third axial control position.
  • a control lever 10.5 also called sliding pinion
  • the pull tab 10.4 is pivotable about a pull rod axis 10.4.3 and cooperates with one of its ends with the winding stem 10.1, for example by being engaged in a groove of the winding stem 10.1, while the other of its ends includes a tip 10.4.1 and a pin 10.4.2.
  • the point 10.4.1 of the pull tab 10.4 cooperates with a side portion 10.5.1 of said control lever 10.5 which is pivotably mounted about a pivot axis 10.5.2.
  • the sliding pinion 10.3 When the tip 10.4.1 of the pull tab 10.4 is positioned in front of a recess on the lateral portion 10.5.1 of the control lever 10.5, the sliding pinion 10.3 is in its first winding position, not illustrated in the figures, respectively the rod winder 10.1 in its first axial control position, in which the sliding pinion 10.3 meshes with said winding pinion 10.2 to allow the winding of the timepiece cylinder.
  • the sliding pinion 10.3 When the tip 10.4.1 of the pull tab 10.4 is positioned outside said hollow, on a portion having a substantially circular front face on the lateral portion 10.5.1 of the control lever 10.5, the sliding pinion 10.3 is in its second correcting position which is illustrated in Figures 1a to 1c and 2a to 2c , in which the sliding pinion 10.3 meshes with the ring gear of said correction ring 1.1 acting as an input wheel.
  • This may correspond either to the second axial control position of the winding stem 10.1 or to the third axial control position of the winding stem 10.1 to allow the corresponding functions to be performed.
  • the device further comprises a first correction wheel 1.3 forming a first output wheel which is adapted to be in kinematic connection with said correction return 1.1 when the winding stem 10.1 is in its second axial control position, and a second correction wheel 1.4 forming a second output wheel which is adapted to be in kinematic connection with the correction return 1.1 when the winding stem is in its third axial control position.
  • the second correction wheel 1.4 is arranged on the same axis as the first correction wheel 1.3, but the two wheels 1.3, 1.4 are not integral with each other so that each can rotate independently.
  • the functions assigned to the first - 1.3 and second correction wheel 1.4 can in principle be chosen freely, and may for example consist of the correction of the calendar and the time setting, or vice versa.
  • the time setting device 10 differs from the devices of the prior art further in that it comprises a clutch device 1 with a specific arrangement as described below.
  • this clutch device 1 comprises an input wheel 1.1, corresponding to the abovementioned correction reference, a clutch wheel 1.2 normally meshing permanently with this input wheel 1.1, and at least a first wheel output 1.3, corresponding to the first correction wheel mentioned above.
  • Said clutch wheel 1.2 is disposed substantially coplanar with respect to the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3, the latter two being effectively located in a common plane of rotation.
  • the clutch wheel 1.2 is arranged so that it is adapted to tilt relative to said plane of rotation so as to occupy at least a first clutch position in which the clutch wheel 1.2 engages with the first output wheel 1.3 and a second clutch position in which the clutch wheel 1.2 is decoupled from the first output wheel 1.3.
  • the centers of the input wheel 1.1, the clutch wheel 1.2, and the first output wheel 1.3 are preferably aligned, but they can also form a different angle, including a right angle.
  • said clutch wheel 1.2 comprises, unlike the devices of the prior art, an axis of rotation 1.2.1 adapted to be inclined relative to the normal to said plane of rotation p of the input wheel 1.1 and of the first output wheel 1.3, thanks to a specific arrangement.
  • the inclination of said axis of rotation 1.2.1 of the clutch wheel 1.2 is possible because this axis 1.2.1 is pivotally mounted at each of its ends 1.2.2, 1.2.3, at least of which an end 1.2.2 is mounted on a movable element 1.6.
  • This movable element 1.6 makes it possible to control the change of position between the first - and the second clutch position of the clutch wheel 1.2, thus to effect the clutch or disengagement between the clutch wheel 1.2 and the clutch wheel.
  • first output wheel 1.3 is
  • the low height of the clutch device so mainly the low effective height h of the axis 1.2.1 of the clutch wheel 1.2 relative to the diameter of this wheel 1.2 allows a clutch, respectively disengagement between the wheel Clutch 1.2 and the first output wheel 1.3 in a very small space optimized for the needs of an ultra-thin watch movement.
  • the clutch of the clutch wheel 1.2 and the first output wheel 1.3 is made by tilting, that is to say by successive engagement of their respective teeth in a direction oriented substantially perpendicular to the plane of rotation p and not radially, it may be that a tooth of the clutch wheel 1.2 falls from above on a tooth of the first output wheel 1.3.
  • the movable element 1.6 preferably comprises and as visible for example in the figure 1a , an elastic arm 1.6.1 to absorb the corresponding offset required at the clutch wheel 1.2.
  • the movable member 1.6 which is pivotably mounted about a pivot axis 1.6.4, also comprises a 1.6.3 guiding means limiting the movement of said movable member 1.6 and defining its maximum tilting in the first - and the second clutch position, respectively in general in the extreme positions of the displacement of the clutch wheel 1.2. Simultaneously, this defines the positions of maximum inclination of the axis of rotation 1.2.1 of the clutch wheel 1.2.
  • the guiding means 1.6.3 may be formed by a oblong opening in cooperation with a pin, as is illustrated by way of example to the Figures 1a to 1c , by two horns in cooperation with a pin, a protruding part in cooperation with two pins, or by other equivalent means.
  • the input wheel 1.1 of a clutch device 1 preferably has a greater thickness, substantially equivalent to a multiple of the thickness of said at least one first output wheel 1.3. , as illustrated in addition to figures 1d and 2d .
  • the clutch device 1 may comprise, in general, at least one second output wheel 1.4 such as the second correction wheel of the time-setting device 10 mentioned above, or even three or more output wheels, if the clutch wheel 1.2, respectively its axis of rotation 1.2.1 and the movable member 1.6, have three or more tilting positions, respectively three or more tilting positions, stable.
  • the clutch wheel 1.2 respectively its axis of rotation 1.2.1 and the movable member 1.6
  • said clutch lever 1.6 comprises a control portion 1.6.2 adapted to cooperate with the pin 10.4.2. on the pull tab 10.4, against which the control part 1.6.2 is prestressed for example by a preloading spring, so that the clutch rocker 1.6 can occupy a first - and a second tilting position in which the wheel clutch 1.2 is in its first - respectively its second clutch position.
  • said control portion 1.6.2 comprises a first circular arc section 1.6.2.1 and a second offset circular arc section 1.6.2.2 which correspond to the first and second pivoting position of the clutch rocker. 1.6.
  • control part 1.6.2 can also be formed by a correspondingly shaped opening in the clutch lever 1.6. It is also possible to invert the constellation, that is to say to provide a pin on the clutch rocker 1.6 and a corresponding control part on the zipper 10.4.
  • the first correction wheel 1.3 preferably consists of the fast correction wheel of the date, but it can also be act on the fast time correction wheel, or another similar correction wheel.
  • the second correction wheel 1.4 is preferably the normal setting wheel, but also in this case it may be another wheel.
  • the point 10.4.1 of the pull tab 10.4 enters the recess on the lateral part 10.5.1 of the control lever 10.5 and the sliding pinion 10.3 is in its first winding position, in which the Breguet toothing of the sliding pinion 10.3 meshes with the Breguet toothing of the winding pinion 10.2, being disengaged from the correction return 1.1, to allow the winding of the barrel of the corresponding timepiece.
  • the clutch wheel 1.2 meshes with the first output wheel 1.3 which is in the example above the fast correction wheel of the date, as illustrated in FIG. figure 1d , and is disengaged from the second output wheel 1.4 which is in the example above the time setting wheel.
  • this has no consequence for these wheels and the gear trains kinematically with them, since the sliding pinion 10.3, respectively the winding stem 10.1 and therefore the crown is not in kinematic connection with the correction return 1.1.
  • the pin 10.4.2 on the zipper 10.4 slides along the first circular section 1.6.2.1 of the control part 1.6.2 of the clutch rocker 1.6, but remains - as in the position thrust of the crown - on this first section 1.6.2.1, so that the clutch wheel 1.2 always meshes with the first output wheel 1.3, the fast correction wheel of the date, and is disengaged from the second output wheel 1.4 , the time-setting wheel, as illustrated in figure 1d .
  • the user can therefore perform the quick correction of the date, or any other function assigned to the first output wheel 1.3.
  • the clutch wheel 1.2 of a clutch device 1 has an axis of rotation 1.2.1 tilting relative to the normal plane of rotation p of the input wheel 1.1 and the first - 1.3, respectively of the second output wheel 1.4.
  • the inclination of this axis of rotation 1.2.1 of the clutch wheel 1: 2 is achieved by making the ends 1.2.2, 1.2.3 of the axis 1.2.1 pivotable and positioning at least one end 1.2 .2 of this axis 1.2.1 on said movable element 1.6 which thus makes it possible to control the change of position between the clutching positions of the clutch wheel 1.2, and thus to effect the clutching and disengagement of the corresponding wheels.
  • the other end 1.2.3 of said axis of rotation 1.2.1 is normally constrained by a fixed part 1.5 of the frame of the timepiece, for example by a ball-shaped end of a tenon 1.5 attached to a bridge of the timepiece, as also visible to figures 1d and 2d . It is however theoretically possible to also place this end 1.2.3 of said axis of rotation 1.2.1 on a second movable element, in particular a movable element making an equivalent movement in the opposite direction of the movement of the movable element 1.6, in order to decrease the change of position of the center of the clutch wheel 1.2. Since this change can be absorbed by the clearance between the teeth of the corresponding wheels, this is not normally necessary.
  • the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2 oriented towards the movable element 1.6 is equipped with a rounded portion, similar to a ball joint, which is housed in a housing 1.6 .5 corresponding provided on the movable element 1.6.
  • said ball-shaped end of stud 1.5 is housed in a cavity 1.2.4 formed in the clutch wheel 1.2 on its side facing said stud 1.5, this cavity surrounding the tilting point b of the wheel of FIG. clutch 1.2.
  • said tilting point b of the axis 1.2.1 of the clutch wheel 1.2 is advantageously located in the common plane of rotation p of the input wheel 1.1 and the first wheel 1.3 or even at least close to the plane of rotation p quasi-common of the input wheel 1.1, the first output wheel 1.3, and the second output wheel 1.4, in which plane is also the wheel clutch 1.2, in case there are several output wheels 1.3, 1.4.
  • the tilting point b is formed by the intersection of the axis of rotation 1.2.1 and the tilting axis of the clutch wheel 1.2, and its positioning in said plane of rotation p allows an arrangement particularly favorable for the integration of a clutch device in an ultra-thin clock movement.
  • the cooperation between said rounded portion on the end 1.2.2 of the axis of rotation 1.2.1 and said housing on the movable element 1.6, as well as the cooperation between the ball-shaped end of the post 1.5 and the cavity 1.2.4 in the clutch wheel 1.2 therefore each perform a joint, similar to the hip joint, comprising each a male part and a female part.
  • the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2 can be equipped with a straight part which is housed in a corresponding housing provided on the movable element 1.6 in which, preferably, a stone having an aperture of a diameter slightly larger than said straight portion is driven to reduce the frictional forces between the right portion and its housing.
  • FIGS. 3a to 3c show, by longitudinal sections analogous to the figure 1d , other embodiments of a clutch device according to the present invention. in particular with regard to how to mount the axis of rotation 1.2.1 of the clutch wheel 1.2 so that it can be inclined.
  • the joints at the first end 1.2.2 and the second end 1.2.3 of the axis of rotation 1.2.1 of the clutch wheel 1.2 can, in principle, also be achieved by reversing the parts male and female at ends 1.2.2, 1.2.3.
  • the figure 3a shows the constellation with two female parts on the clutch wheel 1.2, the male parts being arranged on the post 1.5 and the movable element 1.6.
  • figure 3b shows the constellation with a female part on the side of the clutch wheel 1.2 oriented towards the movable element 1.6 which comprises a corresponding male part, and a male part placed on the side of the clutch wheel 1.2 oriented towards the post 1.5 which in turn comprises a corresponding female part.
  • figure 3c shows the constellation with two male parts on the clutch wheel 1.2, the female parts being arranged on the post 1.5 and the movable element 1.6. It is also possible to achieve these joints by other equivalent means without it being necessary to list them all here.
  • figures 1d and 2d are the preferred embodiments, because at best allowing to place the tilting point b of the axis 1.2.1 of the clutch wheel 1.2 fixedly in the plane of rotation p common to the input wheel 1.1 and the first output wheel 1.3.
  • the tenon 1.5 serves to materialize with its ball-shaped end the tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2, this axis of rotation 1.2.1 can be physically embodied by an axis 1.2.1 around which the clutch wheel 1.2 rotates, as in the preferred embodiment illustrated in FIGS. figures 1d and 2d , or can only have the shape of a rudimentary axis, such as in the embodiment illustrated in FIG. figure 3a .
  • FIGS. Figures 4a to 4d and 5a to 5d show a top view, a side view, a perspective view, and a longitudinal section of the chronograph mechanism in two different positions, namely when the chronograph is activated and when it is stopped.
  • clutch 1 only has a single output wheel 1.3.
  • the movable element also produced in the form of a clutch rocker 1.6 here has a substantially different arrangement that does not change its function.
  • the chronograph mechanism comprises a field wheel 1.1 which forms in this application the input wheel of the clutch device according to this embodiment and which is driven from a gear train finishing the movement of the corresponding chronograph watch. It still has a chronograph wheel 1.3 forming an output wheel of the clutch device and carrying a chronograph seconds hand. Alternatively, the latter can also be placed on another wheel in kinematic connection with the chronograph wheel.
  • a chronograph minute hand mounted on a chronograph minute wheel which is in kinematic connection with the chronograph wheel 1.3 is not illustrated in the figures, since this general constellation is well known to those skilled in the art.
  • the chronograph mechanism finally comprises a clutch wheel 1.2 disposed between the field wheel 1.1 and the chronograph wheel 1.3.
  • the centers of the field wheel 1.1, the clutch wheel 1.2, and the chronograph wheel 1.3 form a right angle, but they could also be aligned or form another angle, function of the construction of the motion in which the mechanism should be integrated. It also depends on the shape of the clutch rocker 1.6 serving as moving element of the clutch device and which has, in the example shown in FIGS. Figures 4a to 4d and 5a to 5d , a generally elongate shape having two concave parts to avoid contact with the periphery of the field wheel 1.1 and the clutch wheel 1.2.
  • the chronograph mechanism comprises a control means for starting and stopping the measurement of a timed time, performed in the example illustrated by a column wheel 11.
  • This control means could be achieved by any other means equivalent known to those skilled in the art and serves to control the angular displacement of the clutch rocker 1.6.
  • the latter is pivotally mounted at one of its ends around the pivot axis 1.6.4, while the other of its ends is free and cooperates, preferably with a pallet mounted on the free end, with the periphery of said column wheel 11.
  • the angular displacement of the clutch rocker 1.6 towards the chronograph wheel 1.3 is limited by a pin 12.2 fixed to the frame of the timepiece, its displacement in the reverse direction could be similarly limited.
  • the movable element in the form of the clutch rocker 1.6 carries the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2, this using a 1.6.6 bridge mounted on the clutch rocker 1.6 which includes a corresponding housing 1.6.5.
  • the second end 1.2.3 of this axis 1.2.1 is housed in a part 12.1 of the frame of the timepiece, similarly similar to the first embodiment.
  • the axis of rotation 1.2.1 of the clutch wheel 1.2 according to the second embodiment of a clutch device according to the present invention is realized, in the example illustrated at Figures 4a to 4d and 5a to 5d , as described above in the context of the figure 3c , due to the fact that the ends 1.2.2, 1.2.3 of the axis 1.2.1 have the straight parts which are housed in corresponding housings provided on the movable element 1.6, respectively on said part 12.1 of the frame in which, preferably, stones having an aperture diameter slightly larger than the straight portions are driven to reduce the frictional forces.
  • the axis of rotation 1.2.1 of this device could be achieved as in the first embodiment, or as described above in the context of Figures 3a and 3b .
  • the tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2 according to the second embodiment is then not located in the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3.
  • the point b is close to this plane p, since the ratio d: h between the diameter d of the clutch wheel 1.2 and the height h of the axis of rotation 1.2.1 between its intersection with said plane of rotation p and the end mounted on the movable element 1.6 is in this constellation chosen so as to be greater than the value chosen for the constellation according to the first embodiment, in which the point b is by default in the plane p.
  • the ratio d: h between the diameter d of the clutch wheel 1.2 and the effective height h of the axis of rotation 1.2.1 is in the first embodiment of the device, preferably, the From 1.5: 1 to 6: 1, this ratio d: h is, in the second embodiment of the device, preferably of the order of 8: 1 to 20: 1.
  • the diameter of the clutch wheel 1.2 shown in FIGS. Figures 4a to 4d and 5a to 5d is for example between 4 mm and 5 mm, while the effective height h of the axis of rotation 1.2.1 is about 0.4 mm, corresponding to a d: h ratio of 10: 1 to 12.5: 1 .
  • said ratio between the diameter of the clutch wheel 1.2 and the height of the axis of rotation 1.2.1 between its intersection with said plane of rotation p and the end mounted on the movable element 1.6 is therefore in the range of values from 1.5: 1 to 20: 1, preferably from 2: 1 to 12: 1. This allows, depending on the physical arrangement chosen for the axis of rotation 1.2.1 of the clutch wheel 1.2, to ensure that the tilting point b of the clutch wheel 1.2 is located in the - or substantially close to the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3.
  • the ratios d: h quoted above could also be expressed in terms of corresponding angles, in particular in terms of the tilt angle of the axis of rotation 1.2.1 with respect to the normal to said plane of rotation p of the input wheel 1.1 and the first output wheel 1.3, or in terms of tilting angle of the clutch wheel 1.2 relative to this plane of rotation p.
  • This angle leads, despite its small values and thanks to the ratio d: h appropriately chosen, a spacing large enough to allow disengagement of the teeth on the clutch wheel 1.2 and the first output wheel 1.3.
  • the axis of rotation 1.2.1 of the clutch wheel 1.2 can then also in the second embodiment of the clutch device according to the present invention illustrated Figures 4a to 4d and 5a to 5d be inclined relative to the normal to the plane of rotation p of the input wheel 1.1 and the output wheel 1.3, by angular pivoting of the clutch rocker 1.6, these pivoting being controlled by the column wheel 11 of in a manner known to those skilled in the art.
  • the second embodiment of the device has been described mainly to show variations in the axis of rotation 1.2.1 and the application, it is clear that the corresponding chronograph mechanism could be achieved while providing a post 1.5 fixed to the frame of the timepiece having a ball-shaped end which serves as a tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2, as described as example in the context of the first embodiment for the application in a time-setting device. Since an integration of the clutch device according to the invention in a chronograph mechanism makes it easier to increase the diameter d of the clutch wheel, this example shows that the device can be adapted according to its application. and therefore has some flexibility.
  • a clutch device makes it possible to eliminate parasitic rotation which occurs in conventional devices, since the clutch and the disengagement are performed by tilting.
  • the device is made particularly simple, using only one number of pieces strictly necessary.
  • the clutch or disengagement is achieved mainly by providing the clutch wheel with a sufficiently large diameter relative to the effective height of its axis to allow its disengagement of at least the first wheel of output, the height of the device can be reduced.
  • the device has a minimal footprint and is adapted to be integrated even in extra-flat movements. At the same time, it has a safe and reliable operation.
  • this clutch device can advantageously be integrated in time-setting devices, chronograph or split-seconds watches, or for any function where the user can make a choice of correction or manipulation or else a system where one wishes to be able to bind or loosen, for example a decoupling of an automatic.
  • it can be integrated in all kinds of timepieces, preferably in mechanical wristwatches, but it is also possible to use it in electronic watches.

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Description

Champs de l'inventionFields of the invention

La présente invention a pour objet un dispositif d'embrayage pour pièces d'horlogerie, notamment pour dispositifs de mise à l'heure ou montres chronographes, le dispositif comportant une roue d'entrée, une roue d'embrayage engrenant avec la roue d'entrée, et au moins une première roue de sortie, ladite roue d'embrayage étant disposée de manière sensiblement coplanaire par rapport au plan de rotation de la roue d'entrée et de la première roue de sortie ainsi qu'agencée de sorte à ce qu'elle est apte à basculer par rapport audit plan de rotation de manière à pouvoir occuper au moins une première position d'embrayage dans laquelle lae roue d'embrayage engrène avec la première roue de sortie et une deuxième position d'embrayage dans laquelle lae roue d'embrayage est découplée de la première roue de sortie, le dispositif comprenant un élément mobile permettant de commander le changement de position entre la première - et la deuxième position de la roue d'embrayage.The present invention relates to a clutch device for timepieces, especially for time-setting devices or chronograph watches, the device comprising an input wheel, a clutch wheel meshing with the wheel of a clutch. inlet, and at least a first output wheel, said clutch wheel being arranged substantially coplanar with the plane of rotation of the input wheel and the first output wheel as well as arranged so that it is adapted to tilt relative to said plane of rotation so as to occupy at least a first clutch position in which the clutch wheel meshes with the first output wheel and a second clutch position in which the wheel of the clutch is decoupled from the first output wheel, the device comprising a movable element for controlling the change of position between the first - and the second position of the clutch wheel .

En particulier, l'invention concerne des pièces d'horlogerie ayant un mouvement mécanique, notamment des montres bracelet mécaniques. Ce genre de pièces d'horlogerie est souvent équipé de plusieurs fonctions; notamment en ce qui concerne les pièces de la haute horlogerie, et dispose de ce fait régulièrement d'un dispositif de commande ayant trois positions, correspondant par exemple au remontage de la montre, à la correction rapide du quantième, et à la mise à l'heure, nécessitant donc un embrayage afin d'attribuer les différentes fonctions aux positions correspondantes du dispositif de commande. L'embrayage conventionnel utilisé pour ce cas de figure consiste en une bascule de correcteur commandée par une tige de commande et déplaçable par un pivotement sur une distance courte qui équivaut à une translation. La bascule comprend un renvoi d'embrayage embarqué apte à engrener avec, respectivement d'être débrayé d'une roue de correcteur, en fonction de la position de la bascule. L'embrayage par translation présente pourtant le désavantage qu'il est possible qu'elle induise, dans certaines circonstances, une rotation parasite de la roue de correcteur liée au déplacement du renvoi embarqué le long de la circonférence de cette roue de correcteur. Cela peut par exemple produire un léger saut, en avant ou en arrière, de l'aiguille des minutes lorsque l'utilisateur de la pièce d'horlogerie repousse la tige de commande après avoir effectué la mise à l'heure, ce qui constitue évidemment un inconvénient. Par ailleurs, ce genre d'embrayage prend passablement de place et n'est donc pas adapté pour l'utilisation dans des mouvements extra-plats. Une fonction supplémentaire dont sont dotées nombre de pièces d'horlogerie consiste en un mécanisme de chronographe. Cette fonction nécessite également un embrayage, le mécanisme d'embrayage classique utilisé pour cette application étant également basé sur un mouvement équivalant à une translation d'un renvoi d'embrayage embarqué. Dans ce cas, la translation du renvoi d'embrayage embarqué produit l'enclenchement, respectivement l'arrêt de la mesure du temps chronométré en établissant, respectivement en interrompant la liaison cinématique entre le rouage de finissage du mouvement de la pièce d'horlogerie et le rouage de chronographe. Cela entraîne pourtant des problèmes du fait que, comme dans le cas décrit ci-dessus de la mise à l'heure, la translation du renvoi d'embrayage embarqué peut, dans certaines circonstances, provoquer une rotation parasite du rouage de chronographe et, par conséquent, un saut en avant de l'aiguille de chronographe. Si cela n'a pas d'influence sur la lecture du temps chronométré, car le jeu d'engrenage est rattrapé par la suite, c'est un problème esthétique au moment du déclenchement du chronographe qui devrait être éliminé. Il existe aussi d'autres applications nécessitant un embrayage dans une pièce d'horlogerie qui sont greffées de problèmes similaires.In particular, the invention relates to timepieces having a mechanical movement, including mechanical wristwatches. This type of timepiece is often equipped with several functions; particularly with regard to the parts of Haute Horlogerie, and thus regularly has a control device having three positions, corresponding for example to the reassembly of the watch, to the rapid correction of the calendar, and to the setting of the time, thus requiring a clutch to assign the various functions to the corresponding positions of the control device. The conventional clutch used for this case consists of a correction lever controlled by a control rod and movable by pivoting a short distance which is equivalent to a translation. The scale includes a reference embedded clutch adapted to mesh with, respectively to be disengaged from a corrector wheel, depending on the position of the rocker. However, the clutch by translation has the disadvantage that it is possible that it causes, in certain circumstances, parasitic rotation of the corrector wheel related to the movement of the onboard gear along the circumference of the corrector wheel. This can for example produce a slight jump, forwards or backwards, of the minute hand when the user of the timepiece pushes the control rod after having made the time setting, which obviously constitutes a disadvantage. Moreover, this type of clutch takes up a lot of room and is not suitable for use in extra-flat movements. An additional function that includes many timepieces consists of a chronograph mechanism. This function also requires a clutch, the conventional clutch mechanism used for this application is also based on a movement equivalent to a translation of an onboard clutch return. In this case, the translation of the onboard clutch return generates the engagement, respectively the stopping of the measured time measurement by establishing, respectively by interrupting the kinematic connection between the finishing gear of the movement of the timepiece and the chronograph wheel. However, this causes problems because, as in the case described above of the time setting, the translation of the onboard clutch return can, under certain circumstances, cause parasitic rotation of the chronograph wheel and, by therefore, a jump forward of the chronograph hand. If this has no influence on the reading of the timed time, because the gear set is overtaken later, it is an aesthetic problem at the time of the triggering of the chronograph that should be eliminated. There are also other applications requiring a clutch in a timepiece that are grafted with similar problems.

État de l'art antérieurState of the prior art

Dans ce contexte, d'autres solutions ont été proposées afin de réduire, voire d'éliminer les problèmes susmentionnés. Par exemple, la demande de brevet européen EP 2 060 958 divulgue, dans le cadre d'un embrayage pour un mécanisme de chronographe, une roue dentée ayant une denture d'une forme spécifique, possédant notamment des dents ayant un pied et une tête de forme particulière. De plus, l'axe du renvoi d'embrayage est placé, contrairement à la disposition d'un chronographe classique, sur la droite entre les axes de la roue de champ et de la roue de chronographe et la forme de la bascule d'embrayage, disposée de sorte à pouvoir amener ledit renvoi en engrenage avec la roue de chronographe ou de l'éloigner, permet d'obtenir une translation du renvoi d'embrayage lors de son mouvement entre ses deux positions débrayée et embrayée orientée quasiment perpendiculairement à la circonférence de la roue de chronographe. Ainsi, le renvoi d'embrayage n'effectue pas de translation le long de la circonférence de la roue de chronographe, ce qui limite la rotation parasite susmentionnée. Cet agencement nécessite pourtant une denture compliquée sur le renvoi d'embrayage et augmente le coût de production. En même temps, la place occupée par ce mécanisme reste considérable et le mécanisme requiert une disposition spécifique de ses pièces les unes par rapport aux autres, ce qui limite son utilisation aussi bien pour d'autres fonctions qu'un chronographe que dans des mouvements extra-plats.In this context, other solutions have been proposed to reduce or even eliminate the above-mentioned problems. For example, the European patent application EP 2 060 958 discloses, in the context of a clutch for a chronograph mechanism, a toothed wheel having a toothing of a specific shape, including having teeth having a foot and a head of particular shape. In addition, the axis of the clutch return is placed, contrary to the arrangement of a conventional chronograph, on the right between the axes of the field wheel and the chronograph wheel and the shape of the clutch rocker , arranged so as to be able to bring said gear in gear with the chronograph wheel or away, allows to obtain a translation of the clutch return during its movement between its two positions disengaged and engaged oriented almost perpendicular to the circumference of the chronograph wheel. Thus, the clutch return does not translate along the circumference of the chronograph wheel, which limits the spurious rotation mentioned above. This arrangement, however, requires complicated teeth on the clutch return and increases the cost of production. At the same time, the space occupied by this mechanism remains considerable and the mechanism requires a specific arrangement of its parts relative to each other, which limits its use both for other functions than a chronograph that in extra movements -Dishes.

De ce fait, encore d'autres types d'embrayage ont été proposés par le passé. En outre, le brevet US 6,773,157 divulgue un dispositif de correction de l'heure comprenant une tige de remontage coopérant, d'une part, de manière conventionnelle avec un rouage de correction des aiguilles de minutes et des heures, par l'intermédiaire d'une première roue de correction. D'autre part, le dispositif comporte une deuxième roue de correction qui est montée sur un axe fixe ayant partiellement la forme d'un cône de façon à ce que la deuxième roue de correction peut être inclinée autour de cet axe, en fonction de la position d'un ressort de commande commandé par la tige et coopérant avec un autre ressort exerçant une force de précontrainte sur la deuxième roue de correction. En fonction de son inclinaison, la deuxième roue de correction engrène ou non avec une partie dudit rouage de correction, et, lorsqu'elle est en position d'engrènement, la tige de remontage n'engrène pas avec ladite première roue de correction. Si ce dispositif peut, en principe, servir à plusieurs applications comme à l'ajustement rapide de l'aiguille des heures indépendamment de l'aiguille des minutes ou à la correction du quantième, le mécanisme est encore plus encombrant qu'un embrayage classique et ne se prête pas à l'intégration dans un mouvement plat. De plus, l'utilisation d'un axe de rotation tronconique fixe en combinaison avec une commande de l'inclinaison du pignon d'embrayage monté sur cet axe par plusieurs ressorts ne semble pas assurer un fonctionnement fiable.As a result, other types of clutch have been proposed in the past. In addition, the patent US 6,773,157 discloses a time correction device comprising a winding rod cooperating, on the one hand, in a conventional manner with a minute and hour handwheel, by means of a first correction wheel. On the other hand, the device comprises a second correction wheel which is mounted on a fixed axis having partially the shape of a cone so that the second wheel of correction may be inclined around this axis, depending on the position of a control spring controlled by the rod and cooperating with another spring exerting a prestressing force on the second correction wheel. Depending on its inclination, the second correction wheel meshes with or not with a part of said correction train, and when it is in meshing position, the winding rod does not mesh with said first correction wheel. If this device can, in principle, be used for several applications such as the quick adjustment of the hour hand independently of the minute hand or the correction of the date, the mechanism is even more bulky than a conventional clutch and does not lend itself to integration in a flat motion. In addition, the use of a fixed frustoconical axis of rotation in combination with a control of the inclination of the clutch gear mounted on this axis by several springs does not seem to ensure reliable operation.

D'autres constellations utilisant une roue d'embrayage basculante, soit en étant montée sur un axe de rotation fixe soit par d'autres moyens similaires, sont divulguées dans les documents DD 127 363 et US 413,654 . Le dispositif de correction de l'heure selon DD 127 363 comporte un pignon d'embrayage qui, sous l'influence de la tige de remontoir, peut basculer autour de son axe afin d'être en contact soit avec la roue de remontoir soit avec la roue de mise à l'heure. Du fait que le pignon d'embrayage est monté sur un levier pivotant dans une cage, il est orienté sensiblement verticalement par rapport à la roue de remontoir et à la roue de mise à l'heure, ce qui implique directement un encombrement important eh hauteur. Le mécanisme n'est donc pas adapté pour une intégration dans des mouvements extra-plats. De plus, cet embrayage, respectivement le dispositif de correction correspondant ne peut commander que deux fonctions et n'est donc pas adapté pour des pièces d'horlogerie de haut de gamme disposant de plusieurs fonctions. Le document US 413,654 décrit un système de remontage et de mise à l'heure qui comporte une roue d'embrayage susceptible de basculer autour d'un axe de rotation fixe. Cette roue d'embrayage permet de transmettre le mouvement de la tige de remontage soit à la roue de remontoir, soit à une roue du train de mise à l'heure, cela en fonction de son inclinaison qui est commandée par la tige de remontage à l'aide d'un anneau monté concentriquement par rapport à la roue d'embrayage et comportant une lèvre de coopération avec la tige. De nouveau, ce dispositif ne peut commander que deux fonctions et son fonctionnement ne semble pas être fiable étant donné que la position inclinée de la roue d'embrayage n'est pas obtenue, suite à la libération de la roue d'embrayage, par contrainte, mais par l'action de la force gravitationnelle, qui change selon l'orientation de la pièce d'horlogerie correspondante.Other constellations using a tilting clutch wheel, either by being mounted on a fixed axis of rotation or by other similar means, are disclosed in the documents DD 127,363 and US 413,654 . The time correction device according to DD 127,363 comprises a clutch gear which, under the influence of the winding stem, can tilt about its axis in order to be in contact with either the winding wheel or with the time setting wheel. Because the clutch gear is mounted on a pivoting lever in a cage, it is oriented substantially vertically with respect to the winding wheel and the time setting wheel, which directly implies a large space requirement at height. . The mechanism is not suitable for integration in extra-flat movements. In addition, this clutch or the corresponding correction device can only control two functions and is therefore not suitable for high-end timepieces with several functions. The document US 413,654 describes a winding and time-setting system that includes a clutch wheel that can tilt around a fixed axis of rotation. This clutch wheel makes it possible to transmit the movement of the winding rod either to the winding wheel or to a wheel of the time-setting train, this according to its inclination which is controlled by the winding rod. using a ring concentrically mounted relative to the clutch wheel and having a lip cooperating with the rod. Again, this device can control only two functions and its operation does not seem to be reliable since the inclined position of the clutch wheel is not obtained, following the release of the clutch wheel, by constraint but by the action of the gravitational force, which changes according to the orientation of the corresponding timepiece.

Les solutions de l'art antérieur mentionnées, ci-dessus ont comme point commun, mis à part le document DD 127 363 qui propose un agencement assez particulier ayant un pignon d'embrayage monté sensiblement verticalement par rapport à la roue de remontoir et à la roue de mise à l'heure, que le pignon d'embrayage est situé sensiblement dans le plan de rotation de la roue d'entrée, par exemple la roue de champ ou la roue de remontoir, et la roue de sortie, par exemple la roue de chronographe ou la roue de mise à l'heure. Malgré cet agencement, les dispositifs selon ces documents ne se prêtent pas, pour les raisons citées ci-dessus, pour l'intégration dans un mouvement extra-plats et sont greffés d'autres désavantages tel qu'expliqué ci-haut. Un autre type de dispositifs selon l'art antérieur est divulgué par exemple dans les documents FR 436 356 , CH 2 547 , EP 0 261 243 , et EP 1 288 743 . Le point commun de ces dispositifs est que la roue d'entrée et la roue de sortie ne sont pas situées dans un même plan de rotation, mais dans deux plans différents, de sorte que le pignon d'embrayage faisant office de lien cinématique entre ces deux roues doit être réalisé par un double pignon dont un pignon coopère avec la roue d'entrée et l'autre pignon avec la roue de sortie.The solutions of the prior art mentioned above have as a common point, apart from the document DD 127,363 which proposes a rather particular arrangement having a clutch gear mounted substantially vertically with respect to the winding wheel and the time setting wheel, that the clutch gear is located substantially in the plane of rotation of the wheel input, for example the field wheel or the winding wheel, and the output wheel, for example the chronograph wheel or the time setting wheel. Despite this arrangement, the devices according to these documents do not lend themselves, for the reasons mentioned above, for integration into an extra-flat movement and are grafted other disadvantages as explained above. Another type of device according to the prior art is disclosed for example in the documents FR 436,356 , CH 2,547 , EP 0 261 243 , and EP 1 288 743 . The common point of these devices is that the input wheel and the output wheel are not located in the same plane of rotation, but in two different planes, so that the clutch gear acting kinematic link between these two wheels must be realized by a double pinion of which one pinion cooperates with the input wheel and the other pinion with the wheel of exit.

Par exemple, le document FR 436 356 propose un dispositif ayant un double pignon basculant fixé à un axe inclinable perpendiculaire au plan de rotation des roues d'entrée et de sortie, situées dans deux plans différents, l'inclinaison de l'axe étant provoquée par le déplacement d'un ressort commandé par une pièce mobile. Le dispositif n'est à toute évidence pas adapté pour utilisation dans un mouvement extra-plat et sa commande n'est apparemment pas très fiable. Le document CH 2 547 divulgue également un double pignon basculant fixé à un axe inclinable perpendiculaire aux plans de rotation distants parallèles des roues d'entrée et de sortie, les extrémités de l'axe inclinable étant fixées dans une fourchette logée rotativement et perpendiculairement par rapport audit axe. Ce système doit disposer de pignons de très petit diamètre pour fonctionner, mais n'est pas adapté pour intégration dans un mouvement extra-plat non plus. Aussi les documents EP 0 261 243 et EP 1 288 743 divulguent un double pignon basculant fixé à un axe inclinable perpendiculaire aux plans de rotation distants des roues d'entrée et de sortie, l'inclinaison de l'axe étant dans les deux cas provoquée par le déplacement d'un organe de commande mobile. Ce dernier soit porte, selon EP 0 261 243 , une extrémité de l'axe inclinable soit contraint, selon EP 1 288 743 , cette extrémité, montée sinon librement, par pression. Comme les dispositifs selon les documents FR 436 356 et CH 2 547 , ces dispositifs ne sont pas adaptés à être intégrés dans un mouvement extra-plat, le document EP 0 261 243 spécifiant en outre une condition sur la longueur minimale de l'axe inclinable pour permettre un fonctionnement correct de l'embrayage. Ces dispositifs ne peuvent par ailleurs commander qu'une seule fonction qui peut être enclenchée ou déclenchée.For example, the document FR 436,356 proposes a device having a double tilting pinion fixed to a tilting axis perpendicular to the plane of rotation of the input and output wheels, located in two different planes, the inclination of the pin being caused by the movement of a controlled spring by a moving part. The device is obviously not suitable for use in an ultra-flat movement and its control is apparently not very reliable. The document CH 2,547 also discloses a double tilting pinion fixed to a tilting axis perpendicular to the parallel remote rotation planes of the input and output wheels, the ends of the tilting axis being fixed in a fork rotatably housed and perpendicular to said axis. This system must have gears of very small diameter to function, but is not suitable for integration in a movement extra-flat either. Also documents EP 0 261 243 and EP 1 288 743 disclose a double rocking pinion fixed to a tilting axis perpendicular to the remote planes of rotation of the input and output wheels, the inclination of the axis being in both cases caused by the displacement of a movable control member. The latter is door, according to EP 0 261 243 , one end of the tilting axis is constrained, according to EP 1 288 743 this end, mounted otherwise freely, by pressure. As the devices according to the documents FR 436,356 and CH 2,547 these devices are not adapted to be integrated in an extra-flat movement, the document EP 0 261 243 further specifying a condition on the minimum length of the tilting axis to allow proper operation of the clutch. These devices can also control only one function that can be engaged or triggered.

Il est donc à constater que, malgré le nombre important de dispositifs préexistants, les solutions de l'art antérieur actuellement connues pour réaliser un tel embrayage, que ce soit du type ayant un pignon d'embrayage dans le même plan de rotation que les roues d'entrée et de sortie ou du type ayant un double pignon d'embrayage à cause des plans de rotation distants des roues d'entrée et de sortie, ne sont pas complètement satisfaisantes, ne sont pas adaptées à certaines applications, et ne sont pas utilisables pour tout type de mouvements, en particulier ne conviennent pas pour des mouvements extra-plats.It is therefore to be noted that, despite the large number of pre-existing devices, the solutions of the prior art currently known for making such a clutch, whether of the type having a clutch gear in the same plane of rotation as the wheels entry and exit or type with a double pinion because of the remote rotation planes of the input and output wheels, are not completely satisfactory, are not suitable for certain applications, and are not usable for any type of movement, in particular are not suitable for extra-flat movements.

Objectives de l'inventionObjectives of the invention

Le but de la présente invention est donc de remédier, au moins partiellement, aux inconvénients des dispositifs connus et de réaliser un dispositif d'embrayage pour pièces d'horlogerie qui a un encombrement réduit, en particulier afin de permettre l'intégration dans des mouvements extra-plats, et qui limite les problèmes de rotation parasite au moment de l'embrayage. Par ailleurs, le dispositif devrait se prêter pour utilisation dans le cadre de plusieurs applications horlogères, notamment pour des dispositifs de mise à l'heure et des montres chronographes, et disposer d'une structure simple et robuste, en outre afin de garantir un coût de production raisonnable, ainsi que d'un fonctionnement fiable.The purpose of the present invention is therefore to overcome, at least partially, the disadvantages of known devices and to make a clutch device for timepieces which has a small footprint, in particular to allow integration into movements extra-flat, and which limits the problems of parasitic rotation at the time of clutching. Furthermore, the device should be suitable for use in the context of several horological applications, in particular for time-setting devices and chronograph watches, and have a simple and robust structure, in addition to guarantee a cost reasonable production, as well as reliable operation.

Solution selon l'inventionSolution according to the invention

A cet effet, la présente invention propose un dispositif d'embrayage du type susmentionné qui se distingue par les caractéristiques énoncées à la revendication 1. En particulier, la roue d'embrayage du dispositif selon la présente invention comporte un axe de rotation apte à être incliné par rapport à la normale audit plan de rotation de la roue d'entrée et de la première roue de sortie en étant monté de façon pivotable à chacune de ses extrémités, au moins une extrémité dudit axe de rotation étant montée sur ledit élément mobile, et le rapport entre le diamètre de la roue d'embrayage et la hauteur de l'axe de rotation comprise entre son intersection avec ledit plan de rotation et l'extrémité montée sur l'élément mobile étant supérieur à 1,5:1.For this purpose, the present invention provides a clutch device of the aforementioned type which is distinguished by the features set forth in claim 1. In particular, the clutch wheel of the device according to the present invention comprises an axis of rotation capable of being inclined relative to the normal to said plane of rotation of the input wheel and the first output wheel being pivotably mounted at each of its ends, at least one end of said axis of rotation being mounted on said movable element, and the ratio between the diameter of the clutch wheel and the height of the axis of rotation between its intersection with said plane of rotation and the end mounted on the movable element being greater than 1.5: 1.

Par ces mesures, l'axe de rotation de la roue d'embrayage est contraint à deux endroits tout en étant inclinable. Ainsi, il est possible d'agencer la roue d'embrayage de manière basculante, permettant un embrayage par basculement qui élimine la rotation parasite de la roue de sortie dont sont greffés les mécanismes classiques, étant donné que la roue d'embrayage s'engage dans la roue de sortie quasiment verticalement et non radialement. Cela est achevé tout en garantissant une construction n'utilisant qu'un nombre très limité de pièces et, surtout, en diminuant la hauteur du dispositif, étant donné que l'embrayage, respectivement le débrayage est réalisé principalement en dotant la roue d'embrayage d'un diamètre suffisamment grand pour permettre son désengagement d'au moins la première roue de sortie. Ainsi, le dispositif est très peu encombrant, de sorte à se prêter à l'intégration dans des mouvements extra-plats, et dispose d'un fonctionnement simple et sûr. De préférence, l'autre extrémité dudit axe de rotation est contraint par une pièce fixe du bâti de la pièce d'horlogerie, ce qui renforce les avantages susmentionnés.By these measures, the axis of rotation of the clutch wheel is forced in two places while being tilting. Thus, it is possible to arrange the clutch wheel tilting manner, allowing a tilting clutch that eliminates spurious rotation of the output wheel grafted conventional mechanisms, since the clutch wheel engages in the output wheel almost vertically and not radially. This is completed while ensuring a construction using only a very limited number of parts and, above all, by decreasing the height of the device, since the clutch or disengagement is achieved mainly by providing the clutch wheel. a diameter large enough to allow its disengagement of at least the first output wheel. Thus, the device is very compact, so as to lend itself to integration in extra-flat movements, and has a simple and safe operation. Preferably, the other end of said axis of rotation is constrained by a fixed part of the frame of the timepiece, which reinforces the aforementioned advantages.

Par ailleurs, l'invention concerne également un dispositif de mise à l'heure et un mécanisme de chronographe comportant un tel dispositif d'embrayage. En effet, ce dernier est adapté pour être utilisé dans plusieurs applications horlogères et dispose donc d'une grande flexibilité aussi bien dans son agencement que dans son utilisation.Furthermore, the invention also relates to a time setting device and a chronograph mechanism comprising such a clutch device. Indeed, the latter is adapted to be used in several horological applications and therefore has great flexibility both in its layout and in its use.

D'autres caractéristiques, ainsi que les avantages correspondants, ressortiront des revendications dépendantes, ainsi que de la description exposant ci-après l'invention plus en détail.Other features, as well as the corresponding advantages, will emerge from the dependent claims, as well as from the description which sets forth the invention in more detail.

Description brève des dessinsBrief description of the drawings

Les dessins annexés représentent schématiquement et à titre d'exemple plusieurs formes d'exécution de l'invention.

  • La figure 1a montre une vue de dessus schématique d'un dispositif de mise à l'heure comportant une première forme d'exécution d'un dispositif d'embrayage selon la présente invention, lorsque le dispositif d'embrayage se trouve dans une première position d'embrayage; les figures 1b et 1c représentent une vue de dessous, respectivement une vue en perspective de ce dispositif dans la même position; la figure 1d est une coupe longitudinale de ce dispositif le long de la ligne I-I indiquée dans la figure 1b.
  • La figure 2a montre une vue de dessus schématique du même dispositif de mise à l'heure, lorsque le dispositif d'embrayage se trouve dans une deuxième position d'embrayage; les figures 2b et 2c représentent une vue de dessous, respectivement une vue en perspective de ce dispositif dans la même position; la figure 2d est une coupe longitudinale de ce dispositif le long de la ligne II-II indiquée dans la figure 2b.
  • Les figures 3a, 3b, et 3c montrent, par des coupes longitudinales à travers un dispositif d'embrayage selon la présente invention analogique à la figure 1b, d'autres formes d'exécution d'un dispositif d'embrayage selon la présente invention, notamment en ce qui concerne la façon de monter l'axe de rotation de la roue d'embrayage de manière à ce qu'il peut être incliné, en étant monté de façon pivotable à chacune de ses extrémités et au moins une extrémité dudit axe de rotation étant montée sur un élément mobile.
  • La figure 4a montre une vue de dessus schématique d'un mécanisme de chronographe comportant une deuxième forme d'exécution d'un dispositif d'embrayage selon la présente invention, lorsque le dispositif d'embrayage se trouve dans une première position d'embrayage; les figures 4b et 4c représentent une vue de coté, respectivement une vue en perspective de ce mécanisme dans la même position; la figure 4d est une coupe longitudinale de ce mécanisme le long de la ligne III-III indiquée dans la figure 4a.
  • La figure 5a montre une vue de dessus schématique du même mécanisme de chronographe, lorsque le dispositif d'embrayage se trouve dans une deuxième position d'embrayage; les figures 5b et 5c représentent une vue de coté, respectivement une vue en perspective de ce mécanisme dans la même position; la figure 5d est une coupe longitudinale de ce mécanisme le long de la ligne IV-IV indiquée dans la figure 5a.
The accompanying drawings show schematically and by way of example several embodiments of the invention.
  • The figure 1a shows a schematic top view of a time setting device comprising a first embodiment of a clutch device according to the present invention, when the clutch device is in a first clutch position ; the Figures 1b and 1c represent a view from below, respectively a perspective view of this device in the same position; the figure 1d is a longitudinal section of this device along the line II indicated in the figure 1b .
  • The figure 2a shows a schematic top view of the same time setting device, when the clutch device is in a second clutch position; the Figures 2b and 2c represent a view from below, respectively a perspective view of this device in the same position; the figure 2d is a longitudinal section of this device along the line II-II indicated in the figure 2b .
  • The Figures 3a, 3b, and 3c show, by longitudinal cuts through a clutch device according to the present invention analog to the figure 1b , other embodiments of a clutch device according to the present invention, particularly with regard to how to mount the axis of rotation of the clutch wheel so that it can be inclined , being pivotably mounted at each of its ends and at least one end of said axis of rotation being mounted on a movable member.
  • The figure 4a shows a schematic top view of a chronograph mechanism comprising a second embodiment of a clutch device according to the present invention, when the clutch device is located in a first clutch position; the Figures 4b and 4c represent a side view, respectively a perspective view of this mechanism in the same position; the figure 4d is a longitudinal section of this mechanism along the line III-III indicated in the figure 4a .
  • The figure 5a shows a schematic top view of the same chronograph mechanism, when the clutch device is in a second clutch position; the figures 5b and 5c represent a side view, respectively a perspective view of this mechanism in the same position; the figure 5d is a longitudinal section of this mechanism along the line IV-IV indicated in the figure 5a .

Description détaillée de l'inventionDetailed description of the invention

L'invention sera maintenant décrite en détail en référence aux dessins annexés illustrant à titre d'exemple plusieurs formes d'exécution de l'invention.The invention will now be described in detail with reference to the accompanying drawings illustrating by way of example several embodiments of the invention.

La présente invention se rapporte à un dispositif d'embrayage destiné à être intégré dans une pièce d'horlogerie, de préférence dans une montre bracelet ayant un mouvement mécanique. Pour des raisons de simplification du langage utilisé, on parlera par la suite indifféremment de « pièce d'horlogerie » et de « montre », sans pour autant vouloir limiter la portée des explications correspondantes qui s'étendent dans tous les cas à tout type de pièces d'horlogerie, ayant soit une source d'énergie mécanique soit électrique. De plus, un tel dispositif d'embrayage peut être intégré à des modules d'une telle pièce d'horlogerie, tel qu'un dispositif de mise à l'heure, un mécanisme de chronographe, un mécanisme de rattrapante, ou d'autres mécanismes qui sont susceptibles d'être équipés d'un dispositif d'embrayage selon la présente invention. Si le dispositif d'embrayage selon la présente invention sera par la suite décrit, à titre d'exemple, dans le contexte des applications d'un dispositif de mise à l'heure et d'un mécanisme de chronographe, cela ne limite ainsi pas la portée de protection pour cette invention, car une intégration dans d'autres applications est faisable par analogie. Du fait qu'un dispositif de mise à l'heure et un mécanisme de chronographe, voire d'autres mécanismes similaires qui sont adaptés à être combinés avec le dispositif d'embrayage selon l'invention, sont en soi connus à l'homme du métier, la description suivante se limitera principalement et dans la mesure possible à la structure et au fonctionnement dudit dispositif d'embrayage.The present invention relates to a clutch device intended to be integrated in a timepiece, preferably in a wristwatch having a mechanical movement. For reasons of simplification of the language used, we will speak indifferently later of "timepiece" and "watch", without wanting to limit the scope of the corresponding explanations which extend in all cases to any type of timepieces, having either a source of mechanical or electrical energy. In addition, such a clutch device can be integrated with modules of such a timepiece, such as a time-setting device, a chronograph mechanism, a split-seconds mechanism, or other devices. mechanisms that are likely to be equipped with a clutch device according to the present invention. If the clutch device according to the present invention will subsequently be described, by way of example, in the context of the applications of a time-setting device and a chronograph mechanism, this does not thus limit the scope of protection for this invention, since an integration into other applications is feasible by analogy. Because a time setting device and a chronograph mechanism, or other similar mechanisms that are adapted to be combined with the clutch device according to the invention, are in themselves known to the man of the the following description will be limited mainly and as far as possible to the structure and operation of said clutch device.

Afin de commenter d'abord la structure et les composants d'un dispositif d'embrayage selon la présente invention, on se réfère aux figures 1a à 1d et 2a à 2d qui illustrent schématiquement et à titre d'exemple une première forme d'exécution d'un tel dispositif dans le cadre de son intégration dans un dispositif de mise à l'heure.In order to first comment on the structure and components of a clutch device according to the present invention, reference is made to Figures 1a to 1d and 2a to 2d which illustrate schematically and by way of example a first embodiment of such a device as part of its integration into a time setting device.

Les figures 1a, 1b, et 1c sont des vues schématiques de dessus, de dessous, respectivement en perspective d'un tel dispositif de mise à l'heure, lorsque le dispositif d'embrayage selon la présente invention intégré dans ce dispositif de mise à l'heure se trouve dans une première position d'embrayage, les figures 2a, 2b, et 2c montrent le dispositif de mise à l'heure lorsque le dispositif d'embrayage se trouve dans une deuxième position d'embrayage. Il en ressort que le dispositif de mise à l'heure 10 comprend une tige de remontoir 10.1. Comme dans de nombreux dispositifs de l'art antérieur, la tige de remontoir 10.1 est apte à occuper au moins trois positions de commande axiales. Un pignon de remontoir 10.2, dont la position axiale par rapport au bâti de la pièce d'horlogerie est fixe, est monté de façon librement rotative autour de la tige de remontoir 10.1 et un pignon coulant 10.3 est monté de manière coulissante sur la tige de remontoir 10.1. Le pignon de remontoir 10.2 comprend une denture radiale engrenant avec un rouage lié cinématiquement au barillet du mouvement de la pièce d'horlogerie correspondante et une denture Breguet orientée en direction du pignon coulant 10.3, tandis que ce dernier comprend une denture Breguet qui est orientée en direction du pignon de remontoir 10.2 et une couronne dentée qui est orientée dans la direction opposée. De plus, le pignon coulant 10.3 est lié rotativement à la tige de remontoir 10.1, par exemple par une section de forme spécifique sur une partie de la longueur de la tige 10.1 et une ouverture de forme correspondante dans le pignon coulant 10.3, ainsi qu'apte à engrener avec ledit pignon de remontoir 10.2 lorsque la tige de remontoir 10.1 se trouve dans sa première position de commande axiale, qui correspond normalement à la position de remontage du barillet de la pièce d'horlogerie correspondante. Le dispositif de mise à l'heure 10 comprend aussi un renvoi de correction 1.1 qui peut être fixé sur un pont de la pièce d'horlogerie correspondante et forme une roue d'entrée. Ce renvoi de correction 1.1 est apte à engrener avec ladite couronne dentée du pignon coulant 10.3 lorsque la tige de remontoir 10.1 se trouve dans sa deuxième - ou sa troisième position de commande axiale.The Figures 1a, 1b, and 1c are schematic views from above, from below, respectively in perspective of such a device for setting the time, when the clutch device according to the present invention integrated in this time setting device is in a first clutch position, the Figures 2a, 2b, and 2c show the time setting device when the clutch device is in a second clutch position. It follows that the setting device 10 comprises a winding stem 10.1. As in many devices of the prior art, the winding stem 10.1 is able to occupy at least three axial control positions. A winding pinion 10.2, whose axial position relative to the frame of the timepiece is fixed, is mounted freely rotatably around the winding stem 10.1 and a sliding pinion 10.3 is slidably mounted on the stem of the watch. winder 10.1. The winding pinion 10.2 comprises a radial toothing meshing with a gear kinematically connected to the barrel of the movement of the corresponding timepiece and a Breguet toothing oriented towards the sliding pinion 10.3, while the latter comprises a Breguet toothing which is oriented in the direction of the winding pinion 10.2 and a ring gear which is oriented in the opposite direction. In addition, the sliding pinion 10.3 is rotatably connected to the winding stem 10.1, for example by a section of specific shape on a part of the length of the rod 10.1 and a correspondingly shaped opening in the sliding pinion 10.3, and adapted to mesh with said winding pinion 10.2 when the winding stem 10.1 is in its first axial control position, which normally corresponds to the winding position of the barrel of the corresponding timepiece. The time setting device 10 also comprises a correction feedback 1.1 which can be fixed on a bridge of the corresponding timepiece and forms an input wheel. This correction return 1.1 is capable of meshing with said ring gear of the sliding pinion 10.3 when the winding stem 10.1 is in its second - or third axial control position.

De plus, le dispositif de mise à l'heure 10 comprend une tirette 10.4 commandée par la tige de remontoir 10.1 et permettant de déplacer, par l'intermédiaire d'un levier de commande 10.5 appelé aussi bascule de pignon coulant, le pignon coulant 10.3 entre une première position de remontage dans laquelle le pignon coulant 10.3 engrène avec ledit pignon de remontoir 10.2, lorsque la tige de remontoir 10.1 se trouve dans sa première position de commande axiale, et une deuxième position de correction dans laquelle la couronne dentée du pignon coulant 10.3 engrène avec ledit renvoi de correction 1.1, lorsque la tige de remontoir 10.1 se trouve dans sa deuxième - ou sa troisième position de commande axiale. En effet, la tirette 10.4 est pivotable autour d'un axe de tirette 10.4.3 et coopère avec une de ses extrémités avec la tige de remontoir 10.1, par exemple en étant engagée dans une gorge de la tige de remontoir 10.1, tandis que l'autre de ses extrémités comprend une pointe 10.4.1 et une goupille 10.4.2. Cela est, en outre, visible à la figure 1b qui montre aussi que la pointe 10.4.1 de la tirette 10.4 coopère avec une partie latérale 10.5.1 dudit levier de commande 10.5 qui est monté pivotable autour d'un axe de pivotement 10.5.2. Lorsque la pointe 10.4.1 de la tirette 10.4 est positionnée en face d'un creux sur la partie latérale 10.5.1 du levier de commande 10.5, le pignon coulant 10.3 est dans sa première position de remontage non illustrée aux figures, respectivement la tige de remontoir 10.1 dans sa première position de commande axiale, dans laquelle le pignon coulant 10.3 engrène avec ledit pignon de remontoir 10.2 pour permettre le remontage du barillet de la pièce d'horlogerie. Lorsque la pointe 10.4.1 de la tirette 10.4 est positionnée en dehors dudit creux, sur une partie ayant une face frontale sensiblement circulaire sur la partie latérale 10.5.1 du levier de commande 10.5, le pignon coulant 10.3 est dans sa deuxième position de correction qui est illustrée aux figures 1a à 1c et 2a à 2c, dans laquelle le pignon coulant 10.3 engrène avec la couronne dentée dudit renvoi de correction 1.1 faisant office de roue d'entrée. Cela peut correspondre soit à la deuxième position de commande axiale de la tige de remontoir 10.1 soit à la troisième position de commande axiale de la tige de remontoir 10.1 pour permettre de réaliser les fonctions correspondantes.In addition, the time setting device 10 comprises a pull tab 10.4 controlled by the winding stem 10.1 and for moving, by means of a control lever 10.5 also called sliding pinion, the sliding pinion 10.3 between a first winding position in which the sliding pinion 10.3 meshes with said winding pinion 10.2, when the winding stem 10.1 is in its first axial control position, and a second correction position in which the ring gear of the sliding pinion 10.3 meshes with said correction return 1.1, when the winding stem 10.1 is in its second - or third axial control position. Indeed, the pull tab 10.4 is pivotable about a pull rod axis 10.4.3 and cooperates with one of its ends with the winding stem 10.1, for example by being engaged in a groove of the winding stem 10.1, while the other of its ends includes a tip 10.4.1 and a pin 10.4.2. This is, moreover, visible to the figure 1b which also shows that the point 10.4.1 of the pull tab 10.4 cooperates with a side portion 10.5.1 of said control lever 10.5 which is pivotably mounted about a pivot axis 10.5.2. When the tip 10.4.1 of the pull tab 10.4 is positioned in front of a recess on the lateral portion 10.5.1 of the control lever 10.5, the sliding pinion 10.3 is in its first winding position, not illustrated in the figures, respectively the rod winder 10.1 in its first axial control position, in which the sliding pinion 10.3 meshes with said winding pinion 10.2 to allow the winding of the timepiece cylinder. When the tip 10.4.1 of the pull tab 10.4 is positioned outside said hollow, on a portion having a substantially circular front face on the lateral portion 10.5.1 of the control lever 10.5, the sliding pinion 10.3 is in its second correcting position which is illustrated in Figures 1a to 1c and 2a to 2c , in which the sliding pinion 10.3 meshes with the ring gear of said correction ring 1.1 acting as an input wheel. This may correspond either to the second axial control position of the winding stem 10.1 or to the third axial control position of the winding stem 10.1 to allow the corresponding functions to be performed.

À cette fin, le dispositif comprend encore une première roue de correction 1.3 formant une première roue de sortie qui est apte à être en liaison cinématique avec ledit renvoi de correction 1.1 lorsque la tige de remontoir 10.1 se trouve dans sa deuxième position de commande axiale, et une deuxième roue de correction 1.4 formant une deuxième roue de sortie qui est apte à être en liaison cinématique avec le renvoi de correction 1.1 lorsque la tige de remontoir se trouve dans sa troisième position de commande axiale. La deuxième roue de correction 1.4 est agencée sur un même axe que la première roue de correction 1.3, mais les deux roues 1.3, 1.4 ne sont pas solidaires l'une de l'autre de sorte à pouvoir effectuer chacune une rotation indépendante. Les fonctions attribués aux première - 1.3 et deuxième roue de correction 1.4 peuvent en principe être choisies librement, et peuvent par exemple consister à la correction du quantième et à la mise à l'heure, ou inversement.To this end, the device further comprises a first correction wheel 1.3 forming a first output wheel which is adapted to be in kinematic connection with said correction return 1.1 when the winding stem 10.1 is in its second axial control position, and a second correction wheel 1.4 forming a second output wheel which is adapted to be in kinematic connection with the correction return 1.1 when the winding stem is in its third axial control position. The second correction wheel 1.4 is arranged on the same axis as the first correction wheel 1.3, but the two wheels 1.3, 1.4 are not integral with each other so that each can rotate independently. The functions assigned to the first - 1.3 and second correction wheel 1.4 can in principle be chosen freely, and may for example consist of the correction of the calendar and the time setting, or vice versa.

Le dispositif de mise à l'heure 10 se distingue des dispositifs de l'art antérieur en outre du fait qu'il comporte un dispositif d'embrayage 1 doté d'un agencement spécifique comme décrit par la suite. De manière générale, ce dispositif d'embrayage 1 comporte une roue d'entrée 1.1, correspondant au renvoi de correction susmentionné, une roue d'embrayage 1.2 engrenant normalement de manière permanente avec cette roue d'entrée 1.1, et au moins une première roue de sortie 1.3, correspondant à la première roue de correction susmentionnée. Ladite roue d'embrayage 1.2 est disposée de manière sensiblement coplanaire par rapport au plan de rotation p de la roue d'entrée 1.1 et de la première roue de sortie 1.3, ces deux dernières étant effectivement situées dans un plan de rotation commun. De plus, la roue d'embrayage 1.2 est agencée de sorte à ce qu'elle est apte à basculer par rapport audit plan de rotation de manière à pouvoir occuper au moins une première position d'embrayage dans laquelle la roue d'embrayage 1.2 engrène avec la première roue de sortie 1.3 et une deuxième position d'embrayage dans laquelle la roue d'embrayage 1.2 est découplée de la première roue de sortie 1.3. Les centres de la roue d'entrée 1.1, de la roue d'embrayage 1.2, et de la première roue de sortie 1.3 sont, de préférence, alignés, mais ils peuvent aussi former un angle différent, notamment un angle droit.The time setting device 10 differs from the devices of the prior art further in that it comprises a clutch device 1 with a specific arrangement as described below. In general, this clutch device 1 comprises an input wheel 1.1, corresponding to the abovementioned correction reference, a clutch wheel 1.2 normally meshing permanently with this input wheel 1.1, and at least a first wheel output 1.3, corresponding to the first correction wheel mentioned above. Said clutch wheel 1.2 is disposed substantially coplanar with respect to the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3, the latter two being effectively located in a common plane of rotation. In addition, the clutch wheel 1.2 is arranged so that it is adapted to tilt relative to said plane of rotation so as to occupy at least a first clutch position in which the clutch wheel 1.2 engages with the first output wheel 1.3 and a second clutch position in which the clutch wheel 1.2 is decoupled from the first output wheel 1.3. The centers of the input wheel 1.1, the clutch wheel 1.2, and the first output wheel 1.3 are preferably aligned, but they can also form a different angle, including a right angle.

En particulier, ladite roue d'embrayage 1.2 comporte, contrairement aux dispositifs de l'art antérieur, un axe de rotation 1.2.1 apte à être incliné par rapport à la normale audit plan de rotation p de la roue d'entrée 1.1 et de la première roue de sortie 1.3, grâce à un agencement spécifique. L'inclinaison de ladite axe de rotation 1.2.1 de la roue d'embrayage 1.2 est possible du fait que cet axe 1.2.1 est monté de façon pivotable à chacune de ses extrémités 1.2.2, 1.2.3, dont au moins une extrémité 1.2.2 est montée sur un élément mobile 1.6. Cet élément mobile 1.6 permet de commander le changement de position entre la première - et la deuxième position d'embrayage de la roue d'embrayage 1.2, donc d'effectuer l'embrayage, respectivement le débrayage entre la roue d'embrayage 1.2 et la première roue de sortie 1.3. Cela est illustré par exemple aux figures 1d et 2d et sera décrit plus en détail par la suite. Généralement, on note encore ici que l'autre extrémité 1.2.3 dudit axe de rotation 1.2.1 est normalement contraint par une pièce fixe 1.5 du bâti de la pièce d'horlogerie. De plus, le rapport d:h entre le diamètre d de la roue d'embrayage 1.2 et la hauteur h de l'axe de rotation 1.2.1 comprise entre son intersection avec ledit plan de rotation p et l'extrémité montée sur l'élément mobile 1.6, tel qu'illustré schématiquement aux figures 1d et 2d, est supérieure à une valeur d'environ 1,5:1. La faible hauteur du dispositif d'embrayage, donc principalement la faible hauteur effective h de l'axe 1.2.1 de la roue d'embrayage 1.2 par rapport au diamètre d de cette roue 1.2 permet de réaliser un embrayage, respectivement débrayage entre la roue d'embrayage 1.2 et la première roue de sortie 1.3 dans un espace très réduit et optimisé au vu des besoins d'un mouvement horloger extra-plat.In particular, said clutch wheel 1.2 comprises, unlike the devices of the prior art, an axis of rotation 1.2.1 adapted to be inclined relative to the normal to said plane of rotation p of the input wheel 1.1 and of the first output wheel 1.3, thanks to a specific arrangement. The inclination of said axis of rotation 1.2.1 of the clutch wheel 1.2 is possible because this axis 1.2.1 is pivotally mounted at each of its ends 1.2.2, 1.2.3, at least of which an end 1.2.2 is mounted on a movable element 1.6. This movable element 1.6 makes it possible to control the change of position between the first - and the second clutch position of the clutch wheel 1.2, thus to effect the clutch or disengagement between the clutch wheel 1.2 and the clutch wheel. first output wheel 1.3. This is illustrated for example in figures 1d and 2d and will be described in more detail later. Generally, it is still noted here that the other end 1.2.3 of said axis of rotation 1.2.1 is normally constrained by a fixed part 1.5 of the frame of the timepiece. In addition, the ratio d: h between the diameter d of the clutch wheel 1.2 and the height h of the axis of rotation 1.2.1 between its intersection with said plane of rotation p and the end mounted on the mobile element 1.6, as schematically illustrated in figures 1d and 2d is greater than about 1.5: 1. The low height of the clutch device, so mainly the low effective height h of the axis 1.2.1 of the clutch wheel 1.2 relative to the diameter of this wheel 1.2 allows a clutch, respectively disengagement between the wheel Clutch 1.2 and the first output wheel 1.3 in a very small space optimized for the needs of an ultra-thin watch movement.

Étant donné que l'embrayage de la roue d'embrayage 1.2 et de la première roue de sortie 1.3 est effectué par basculement, c'est-à-dire par engagement successif de leurs dentures respectives dans une direction orientée sensiblement perpendiculairement au plan de rotation p et non radialement, il se peut qu'une dent de la roue d'embrayage 1.2 tombe par le haut sur une dent de la première roue de sortie 1.3. Afin de permettre, en attendant une rotation de la tige de remontoir 10.1, un engagement souple aussi dans ce cas de figure, l'élément mobile 1.6 comprend, de préférence et tel que visible par exemple à la figure 1a, un bras élastique 1.6.1 permettant d'absorber le décalage correspondant nécessaire au niveau de la roue d'embrayage 1.2. L'élément mobile 1.6, qui est monté pivotable autour d'un axe de pivotement 1.6.4, comprend également un moyen de guidage 1.6.3 limitant le mouvement dudit élément mobile 1.6 et définissant son basculement maximale dans la première - et la deuxième position d'embrayage, respectivement en général dans les positions extrêmes du déplacement de la roue d'embrayage 1.2. Simultanément, cela définit les positions d'inclinaison maximale de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2. Le moyen de guidage 1.6.3 peut être formé par une ouverture oblonge en coopération avec une goupille, tel que cela est illustré par exempte aux figures 1a à 1c, par deux cornes en coopération avec une goupille, par une partie saillante en coopération avec deux goupilles, ou encore par d'autres moyens équivalents.Since the clutch of the clutch wheel 1.2 and the first output wheel 1.3 is made by tilting, that is to say by successive engagement of their respective teeth in a direction oriented substantially perpendicular to the plane of rotation p and not radially, it may be that a tooth of the clutch wheel 1.2 falls from above on a tooth of the first output wheel 1.3. In order to allow, while waiting for a rotation of the winding stem 10.1, a flexible engagement also in this case, the movable element 1.6 preferably comprises and as visible for example in the figure 1a , an elastic arm 1.6.1 to absorb the corresponding offset required at the clutch wheel 1.2. The movable member 1.6, which is pivotably mounted about a pivot axis 1.6.4, also comprises a 1.6.3 guiding means limiting the movement of said movable member 1.6 and defining its maximum tilting in the first - and the second clutch position, respectively in general in the extreme positions of the displacement of the clutch wheel 1.2. Simultaneously, this defines the positions of maximum inclination of the axis of rotation 1.2.1 of the clutch wheel 1.2. The guiding means 1.6.3 may be formed by a oblong opening in cooperation with a pin, as is illustrated by way of example to the Figures 1a to 1c , by two horns in cooperation with a pin, a protruding part in cooperation with two pins, or by other equivalent means.

Par ailleurs, la roue d'entrée 1.1 d'un dispositif d'embrayage 1 selon la présente invention a, de préférence, une épaisseur plus importante, équivalant sensiblement à un multiple de l'épaisseur de ladite au moins une première roue de sortie 1.3, tel qu'illustré en outre aux figures 1d et 2d. Par conséquent, le dispositif d'embrayage 1 peut comporter, de façon générale, au moins une deuxième roue de sortie 1.4 telle que la deuxième roue de correction du dispositif de mise à l'heure 10 mentionnée ci-dessus, voire même trois ou plusieurs roues de sortie, si la roue d'embrayage 1.2, respectivement son axe de rotation 1.2.1 ainsi que l'élément mobile 1.6, ont trois ou plusieurs positions d'inclinaison, respectivement trois ou plusieurs positions de basculement, stables. Par exemple, dans le cas de trois roues de sortie, il suffit d'ajouter une troisième roue de sortie entre la première - et la deuxième roue de sortie illustrées aux figures 1d et 2d et de définir, à coté des deux positions stables inclinées de la roue d'embrayage 1.2 une troisième position stable dans laquelle la roue d'embrayage 1.2 est coplanaire avec ladite troisième roue de sortie. Il n'est pourtant pas nécessaire que le dispositif d'embrayage 1 selon la présente invention dispose de plus d'une roue de sortie, leur nombre dépendant en effet du type d'application à laquelle le dispositif d'embrayage 1 devrait servir. C'est notamment le rapport d:h entre le diamètre d de la roue d'embrayage 1.2 et la hauteur effective h de son axe de rotation 1.2.1, choisi dans un dispositif selon l'invention différemment que dans l'art antérieur, qui ouvre la possibilité à intégrer plusieurs fonctions dans ce type de dispositif. Le grand diamètre d de la roue d'embrayage 1.2 par rapport à la hauteur effective h de son axe permet ainsi de réaliser un embrayage à fonctions multiples, contrairement en particulier au type d'art antérieur mentionné ci-dessus utilisant un double pignon d'embrayage.Furthermore, the input wheel 1.1 of a clutch device 1 according to the present invention preferably has a greater thickness, substantially equivalent to a multiple of the thickness of said at least one first output wheel 1.3. , as illustrated in addition to figures 1d and 2d . Therefore, the clutch device 1 may comprise, in general, at least one second output wheel 1.4 such as the second correction wheel of the time-setting device 10 mentioned above, or even three or more output wheels, if the clutch wheel 1.2, respectively its axis of rotation 1.2.1 and the movable member 1.6, have three or more tilting positions, respectively three or more tilting positions, stable. For example, in the case of three output wheels, it suffices to add a third output wheel between the first - and the second output wheel illustrated in FIGS. figures 1d and 2d and defining, next to the two inclined stable positions of the clutch wheel 1.2 a third stable position in which the clutch wheel 1.2 is coplanar with said third output wheel. It is not necessary, however, that the clutch device 1 according to the present invention has more than one output wheel, their number depending on the type of application to which the clutch device 1 should serve. It is in particular the ratio d: h between the diameter d of the clutch wheel 1.2 and the effective height h of its axis of rotation 1.2.1, chosen in a device according to the invention differently than in the prior art, which opens the possibility to integrate several functions in this type of device. The large diameter d of the clutch wheel 1.2 relative to the effective height h of its axis thus makes it possible to produce a multi-function clutch, unlike, in particular, the type of prior art mentioned above using a double pinion. clutch.

Pour revenir au dispositif de mise à l'heure 10 illustré aux figures 1a à 1c et 2a à 2c, dans lequel le dispositif d'embrayage 1 est équipé de deux roues de sortie, on note que, dans ce cas d'application du dispositif d'embrayage 1 décrit ci-dessus de façon générale, ledit élément mobile est réalisé par une bascule d'embrayage 1.6 qui coopère avec ladite tirette 10.4 de sorte à commander le changement de position entre la première - et la deuxième position d'embrayage de la roue d'embrayage 1.2. Ce dernier engrène avec la première roue de correction 1.3 dans sa première position d'embrayage et avec la deuxième roue de correction 1.4 dans sa deuxième position d'embrayage, la roue d'embrayage 1.2 étant découplé de la première roue de correction 1.3 dans cette deuxième position du dispositif d'embrayage. Afin d'obtenir le changement de position entre la première - et la deuxième position d'embrayage de la roue d'embrayage 1.2, ladite bascule d'embrayage 1.6 comprend une partie de commande 1.6.2 apte à coopérer avec la goupille 10.4.2 sur la tirette 10.4, contre laquelle la partie de commande 1.6.2 est précontrainte par exemple par un ressort de précontrainte, de sorte à ce que la bascule d'embrayage 1.6 puisse occuper une première - et une deuxième position de basculement dans lesquelles la roue d'embrayage 1.2 se trouve dans sa première -, respectivement sa deuxième position d'embrayage. De préférence, ladite partie de commande 1.6.2 comprend une première section en arc de cercle 1.6.2.1 et une deuxième section en arc de cercle décalée 1.6.2.2 qui correspondent à la première - et deuxième position de basculement de la bascule d'embrayage 1.6. Au lieu d'être formée par une surface de forme spécifique, la partie de commande 1.6.2 peut aussi être formée par une ouverture de forme correspondante dans la bascule d'embrayage 1.6. Il est aussi possible d'inverser la constellation, c'est-à-dire de prévoir une goupille sur la bascule d'embrayage 1.6 et une partie de commande correspondante sur la tirette 10.4.To return to the time setting device 10 illustrated in Figures 1a to 1c and 2a to 2c, wherein the clutch device 1 is equipped with two output wheels, it is noted that, in this case of application of the clutch device 1 described above in general, said movable element is realized by a clutch rocker 1.6 which cooperates with said pull tab 10.4 so as to control the change of position between the first - and the second clutch position of the clutch wheel 1.2. The latter meshes with the first correction wheel 1.3 in its first clutch position and with the second correction wheel 1.4 in its second clutch position, the clutch wheel 1.2 being decoupled from the first correction wheel 1.3 in this case. second position of the clutch device. In order to obtain the change of position between the first and second clutch wheel clutch position 1.2, said clutch lever 1.6 comprises a control portion 1.6.2 adapted to cooperate with the pin 10.4.2. on the pull tab 10.4, against which the control part 1.6.2 is prestressed for example by a preloading spring, so that the clutch rocker 1.6 can occupy a first - and a second tilting position in which the wheel clutch 1.2 is in its first - respectively its second clutch position. Preferably, said control portion 1.6.2 comprises a first circular arc section 1.6.2.1 and a second offset circular arc section 1.6.2.2 which correspond to the first and second pivoting position of the clutch rocker. 1.6. Instead of being formed by a surface of specific shape, the control part 1.6.2 can also be formed by a correspondingly shaped opening in the clutch lever 1.6. It is also possible to invert the constellation, that is to say to provide a pin on the clutch rocker 1.6 and a corresponding control part on the zipper 10.4.

Dans ce cas de l'intégration du dispositif d'embrayage 1 dans un dispositif de mise à l'heure 10, la première roue de correction 1.3 consiste, de préférence, en la roue de correction rapide du quantième, mais il peut aussi s'agir de la roue de correction rapide de l'heure, ou d'une autre roue correctrice similaire. La deuxième roue de correction 1.4 est, de préférence, la roue de mise à l'heure normale, mais aussi dans ce cas il peut s'agir d'une autre roue.In this case of the integration of the clutch device 1 in a time setting device 10, the first correction wheel 1.3 preferably consists of the fast correction wheel of the date, but it can also be act on the fast time correction wheel, or another similar correction wheel. The second correction wheel 1.4 is preferably the normal setting wheel, but also in this case it may be another wheel.

Les explications précédentes concernant la structure et les composants d'un dispositif d'embrayage 1 selon la présente invention ainsi que son application dans un dispositif de mise à l'heure 10 permettent de comprendre facilement son fonctionnement, notamment à l'aide des séries de figures 1a à 1d et 2a à 2d. En effet, lorsque la couronne fixée sur l'extrémité extérieure de la tige de remontoir 10.1 est dans sa position poussée, la tige de remontoir 10.1 se trouve dans sa première position de commande axiale non illustrée aux figures. Dans ce cas, la pointe 10.4.1 de la tirette 10.4 entre dans le creux sur la partie latérale 10.5.1 du levier de commande 10.5 et le pignon coulant 10.3 est dans sa première position de remontage, dans laquelle la denture Breguet du pignon coulant 10.3 engrène avec la denture de Breguet du pignon de remontoir 10.2, en étant débrayé du renvoi de correction 1.1, pour permettre le remontage du barillet de la pièce d'horlogerie correspondante. Dans cette position, la roue d'embrayage 1.2 engrène avec la première roue de sortie 1.3 qui est dans l'exemple ci-dessus la roue de correction rapide du quantième, tel qu'illustré à la figure 1d, et est débrayée de la deuxième roue de sortie 1.4 qui est dans l'exemple ci-dessus la roue de mise à l'heure. Cela n'a pourtant pas de conséquence pour ces roues et les rouages liés cinématiquement avec elles, puisque le pignon coulant 10.3, respectivement la tige de remontoir 10.1 et donc la couronne n'est pas en liaison cinématique avec le renvoi de correction 1.1.The preceding explanations concerning the structure and the components of a clutch device 1 according to the present invention as well as its application in a setting device 10 make it easy to understand its operation, in particular with the help of Figures 1a to 1d and 2a to 2d . Indeed, when the crown fixed on the outer end of the winding stem 10.1 is in its pushed position, the winding stem 10.1 is in its first axial control position not shown in the figures. In this case, the point 10.4.1 of the pull tab 10.4 enters the recess on the lateral part 10.5.1 of the control lever 10.5 and the sliding pinion 10.3 is in its first winding position, in which the Breguet toothing of the sliding pinion 10.3 meshes with the Breguet toothing of the winding pinion 10.2, being disengaged from the correction return 1.1, to allow the winding of the barrel of the corresponding timepiece. In this position, the clutch wheel 1.2 meshes with the first output wheel 1.3 which is in the example above the fast correction wheel of the date, as illustrated in FIG. figure 1d , and is disengaged from the second output wheel 1.4 which is in the example above the time setting wheel. However, this has no consequence for these wheels and the gear trains kinematically with them, since the sliding pinion 10.3, respectively the winding stem 10.1 and therefore the crown is not in kinematic connection with the correction return 1.1.

Lorsque l'utilisateur de cette pièce d'horlogerie tire la couronne dans sa première position tirée, il amène la tige de remontoir 10.1 dans sa deuxième position de commande axiale. Cela fait légèrement pivoter la tirette 10.4, de sorte que sa pointe 10.4.1 quitte ledit creux sur la partie latérale 10.5.1 du levier. de commande 10.5 et s'appuie contre la partie ayant une face frontale sensiblement circulaire sur la partie latérale 10.5.1 du levier de commande 10.5, comme visible par exemple à la figure 1b. Par conséquent, le pignon coulant 10.3 glisse dans sa deuxième position de correction qui est illustrée aux figures 1a à 1c, dans laquelle la couronne dentée du pignon coulant 10.3 engrène avec ledit renvoi de correction 1.1 et est débrayé du pignon de remontoir 10.2. En même temps, la goupille 10.4.2 sur la tirette 10.4 glisse le long de la première section en arc de cercle 1.6.2.1 de la partie de commande 1.6.2 de la bascule d'embrayage 1.6, mais reste - comme dans la position poussée de la couronne - sur cette première section 1.6.2.1, de sorte que la roue d'embrayage 1.2 engrène toujours avec la première roue de sortie 1.3, la roue de correction rapide du quantième, et est débrayée de la deuxième roue de sortie 1.4, la roue de mise à l'heure, tel qu'illustré à la figure 1d. L'utilisateur peut donc effectuer la correction rapide du quantième, voire toute autre fonction attribuée à la première roue de sortie 1.3.When the user of this timepiece pulls the crown in its first pulled position, it brings the winding stem 10.1 in its second axial control position. This rotates the zipper 10.4 slightly, so that its tip 10.4.1 leaves said recess on the side portion 10.5.1 of the lever. 10.5 and bears against the portion having a substantially circular front face on the side portion 10.5.1 of the control lever 10.5, as visible for example in the figure 1b . Consequently, the sliding pinion 10.3 slides into its second correction position, which is illustrated in FIGS. Figures 1a to 1c , in which the ring gear of the sliding pinion 10.3 meshes with said correction return 1.1 and is disengaged from the winding pinion 10.2. At the same time, the pin 10.4.2 on the zipper 10.4 slides along the first circular section 1.6.2.1 of the control part 1.6.2 of the clutch rocker 1.6, but remains - as in the position thrust of the crown - on this first section 1.6.2.1, so that the clutch wheel 1.2 always meshes with the first output wheel 1.3, the fast correction wheel of the date, and is disengaged from the second output wheel 1.4 , the time-setting wheel, as illustrated in figure 1d . The user can therefore perform the quick correction of the date, or any other function assigned to the first output wheel 1.3.

Lorsque l'utilisateur de cette pièce d'horlogerie tire ensuite la couronne dans sa deuxième position tirée, il amène la tige de remontoir 10.1 dans sa troisième position de commande axiale. Cela fait pivoter la tirette 10.4 encore légèrement plus loin, comme visible par exemple à la figure 2b, mais sa pointe 10.4.1 reste en appui contre la partie ayant une face frontale sensiblement circulaire sur la partie latérale 10.5.1 du levier de commande 10.5. Le pignon coulant 10.3 reste donc dans sa deuxième position de correction, dans laquelle le pignon coulant 10.3 engrène avec ledit renvoi de correction 1.1 et est débrayé du pignon de remontoir 10.2, ce qui est aussi illustré aux figures 2a à 2c. Le pignon coulant 10.3 reste alors dans la même position dans la deuxième - et la troisième position de commande axiale de la tige de remontoir 10.1. En même temps, la goupille 10.4.2 sur la tirette 10.4 glisse plus loin le long de la partie de commande 1.6.2 de la bascule d'embrayage 1.6 et s'engage dans la deuxième section en arc de cercle décalé 1.6.2.2. Cela a pour conséquence un mouvement de la bascule d'embrayage 1.6 qui produit une inclinaison de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2, de sorte que la roue d'embrayage 1.2 bascule et engrène avec la deuxième roue de sortie 1.4, à savoir la roue de mise à l'heure, en débrayant de la première roue de sortie 1.3, à savoir la roue de correction rapide du quantième. Dans cette position, qui est illustrée schématiquement à la figure 2d, l'utilisateur peut donc effectuer la mise à l'heure, voire toute autre fonction attribuée à la deuxième roue de sortie 1.4.When the user of this timepiece then pulls the crown in its second pulled position, it brings the winding stem 10.1 into its third axial control position. This rotates the zipper 10.4 even further, as seen for example in the figure 2b , but its tip 10.4.1 remains in abutment against the part having a substantially circular front face on the lateral part 10.5.1 of the control lever 10.5. Pinion 10.3 therefore remains in its second correction position, in which the sliding pinion 10.3 meshes with said correction return 1.1 and is disengaged from the winding pinion 10.2, which is also illustrated in FIGS. Figures 2a to 2c . The sliding pinion 10.3 then remains in the same position in the second - and the third axial control position of the winding stem 10.1. At the same time, the pin 10.4.2 on the pull tab 10.4 slides further along the control part 1.6.2 of the clutch lever 1.6 and engages in the second section in an offset circular arc. 1.6.2.2. This results in a movement of the clutch rocker 1.6 which produces an inclination of the axis of rotation 1.2.1 of the clutch wheel 1.2, so that the clutch wheel 1.2 tilts and meshes with the second wheel output 1.4, namely the time setting wheel, disengaging the first output wheel 1.3, namely the fast correction wheel of the date. In this position, which is schematically illustrated in figure 2d , the user can perform the time setting, or any other function assigned to the second output wheel 1.4.

Comme mentionné plus haut, la roue d'embrayage 1.2 d'un dispositif d'embrayage 1 selon la présente invention dispose d'un axe de rotation 1.2.1 inclinable par rapport à la normale du plan de rotation p de la roue d'entrée 1.1 et de la première - 1.3, respectivement de la deuxième roue de sortie 1.4. Tel que visible aux figures 1d et 2d, l'inclinaison de cet axe de rotation 1.2.1 de la roue d'embrayage 1:2 est réalisée en rendant les extrémités 1.2.2, 1.2.3 de l'axe 1.2.1 pivotables et en positionnant au moins une extrémité 1.2.2 de cet axe 1.2.1 sur ledit élément mobile 1.6 qui permet ainsi de commander le changement de position entre les positions d'embrayage de la roue d'embrayage 1.2, donc d'effectuer l'embrayage et le débrayage des roues correspondantes. Il est à noter dans ce contexte que l'autre extrémité 1.2.3 dudit axe de rotation 1.2.1 est normalement contraint par une pièce fixe 1.5 du bâti de la pièce d'horlogerie, par exemple par une extrémité en forme de rotule d'un tenon 1.5 fixé à un pont de la pièce d'horlogerie, tel qu'également visible aux figures 1d et 2d. Il est pourtant théoriquement possible de placer aussi cette extrémité 1.2.3 dudit axe de rotation 1.2.1 sur un deuxième élément mobile, notamment un élément mobile effectuant un mouvement équivalent dans la direction opposée du mouvement de l'élément mobile 1.6, afin de diminuer le changement de position du centre de la roue d'embrayage 1.2. Du fait que ce changement peut être absorbé par le jeu entre les dentures des roues correspondantes, cela n'est pourtant normalement pas nécessaire.As mentioned above, the clutch wheel 1.2 of a clutch device 1 according to the present invention has an axis of rotation 1.2.1 tilting relative to the normal plane of rotation p of the input wheel 1.1 and the first - 1.3, respectively of the second output wheel 1.4. As visible to figures 1d and 2d , the inclination of this axis of rotation 1.2.1 of the clutch wheel 1: 2 is achieved by making the ends 1.2.2, 1.2.3 of the axis 1.2.1 pivotable and positioning at least one end 1.2 .2 of this axis 1.2.1 on said movable element 1.6 which thus makes it possible to control the change of position between the clutching positions of the clutch wheel 1.2, and thus to effect the clutching and disengagement of the corresponding wheels. It should be noted in this context that the other end 1.2.3 of said axis of rotation 1.2.1 is normally constrained by a fixed part 1.5 of the frame of the timepiece, for example by a ball-shaped end of a tenon 1.5 attached to a bridge of the timepiece, as also visible to figures 1d and 2d . It is however theoretically possible to also place this end 1.2.3 of said axis of rotation 1.2.1 on a second movable element, in particular a movable element making an equivalent movement in the opposite direction of the movement of the movable element 1.6, in order to decrease the change of position of the center of the clutch wheel 1.2. Since this change can be absorbed by the clearance between the teeth of the corresponding wheels, this is not normally necessary.

Par ailleurs, dans l'exemple illustré aux figures 1d et 2d, la première extrémité 1.2.2 de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 orientée vers l'élément mobile 1.6 est équipée d'une partie arrondie, semblable à une rotule, qui est logée dans un logement 1.6.5 correspondant prévu sur l'élément mobile 1.6. De même, ladite extrémité en forme de rotule du tenon 1.5 est logée dans une cavité 1.2.4 formée dans la roue d'embrayage 1.2 sur son coté orienté vers ledit tenon 1.5, cette cavité entourant le point de basculement b de la roue d'embrayage 1.2. De manière générale et tel qu'illustré schématiquement aux figures 1d et 2d, dans un dispositif selon la présente invention, ledit point de basculement b de l'axe 1.2.1 de la roue d'embrayage 1.2 est avantageusement situé dans le plan de rotation p commun de la roue d'entrée 1.1 et de la première roue de sortie 1.3, voire tout au moins proche du plan de rotation p quasi-commun de la roue d'entrée 1.1, de la première roue de sortie 1.3, et de la deuxième roue de sortie 1.4, dans lequel plan se situe également la roue d'embrayage 1.2, au cas où il y a plusieurs roues de sortie 1.3, 1.4. En effet, le point de basculement b est formé par l'intersection de l'axe de rotation 1.2.1 et de l'axe de basculement de la roue d'embrayage 1.2, et son positionnement dans ledit plan de rotation p permet un agencement particulièrement favorable pour l'intégration d'un dispositif d'embrayage dans un mouvement horloger extra-plat. La coopération entre ladite partie arrondie sur l'extrémité 1.2.2 de l'axe de rotation 1.2.1 et ledit logement sur l'élément mobile 1.6, ainsi que la coopération entre l'extrémité en forme de rotule du tenon 1.5 et la cavité 1.2.4 dans la roue d'embrayage 1.2 réalisent donc chacune une articulation, similaire à l'articulation de la hanche, comprenant chacune une partie mâle et une partie femelle. En variante, la première extrémité 1.2.2 de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 peut être équipée d'une partie droite qui est logée dans un logement correspondant prévu sur l'élément mobile 1.6 dans lequel, préférablement, une pierre ayant une ouverture de diamètre légèrement plus grand que ladite partie droite est chassée afin de réduire les forces de frottement entre la partie droite et son logement.Moreover, in the example illustrated in figures 1d and 2d , the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2 oriented towards the movable element 1.6 is equipped with a rounded portion, similar to a ball joint, which is housed in a housing 1.6 .5 corresponding provided on the movable element 1.6. Similarly, said ball-shaped end of stud 1.5 is housed in a cavity 1.2.4 formed in the clutch wheel 1.2 on its side facing said stud 1.5, this cavity surrounding the tilting point b of the wheel of FIG. clutch 1.2. In a general way and as schematically illustrated in figures 1d and 2d , in a device according to the present invention, said tilting point b of the axis 1.2.1 of the clutch wheel 1.2 is advantageously located in the common plane of rotation p of the input wheel 1.1 and the first wheel 1.3 or even at least close to the plane of rotation p quasi-common of the input wheel 1.1, the first output wheel 1.3, and the second output wheel 1.4, in which plane is also the wheel clutch 1.2, in case there are several output wheels 1.3, 1.4. Indeed, the tilting point b is formed by the intersection of the axis of rotation 1.2.1 and the tilting axis of the clutch wheel 1.2, and its positioning in said plane of rotation p allows an arrangement particularly favorable for the integration of a clutch device in an ultra-thin clock movement. The cooperation between said rounded portion on the end 1.2.2 of the axis of rotation 1.2.1 and said housing on the movable element 1.6, as well as the cooperation between the ball-shaped end of the post 1.5 and the cavity 1.2.4 in the clutch wheel 1.2 therefore each perform a joint, similar to the hip joint, comprising each a male part and a female part. As a variant, the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2 can be equipped with a straight part which is housed in a corresponding housing provided on the movable element 1.6 in which, preferably, a stone having an aperture of a diameter slightly larger than said straight portion is driven to reduce the frictional forces between the right portion and its housing.

Les figures 3a à 3c montrent, par des coupes longitudinales analogiques à la figure 1d, d'autres formes d'exécution d'un dispositif d'embrayage selon la présente invention. notamment en ce qui concerne la façon de monter l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 de façon à ce qu'elle puisse être inclinée. En effet, les articulations au niveau de la première extrémité 1.2.2 et de la deuxième extrémité 1.2.3 de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 peuvent, en principe, également être réalisées en inversant les parties mâles et femelles aux extrémités 1.2.2, 1.2.3. Par exemple, la figure 3a montre la constellation avec deux parties femelles sur la roue d'embrayage 1.2, les parties mâles étant agencées sur le tenon 1.5 et l'élément mobile 1.6. La figure 3b montre la constellation avec une partie femelle sur le coté de la roue d'embrayage 1.2 orienté vers l'élément mobile 1.6 qui comporte une partie mâle correspondante, et une partie mâle placée sur le coté de la roue d'embrayage 1.2 orienté vers le tenon 1.5 qui comporte à son tour une partie femelle correspondante. Cela correspond à une configuration inverse à celle des figures 1d et 2d. Enfin, la figure 3c montre la constellation avec deux parties mâles sur la roue d'embrayage 1.2, les parties femelles étant agencées sur le tenon 1.5 et l'élément mobile 1.6. Il est aussi possible de réaliser ces articulations par d'autres moyens équivalents sans qu'il soit nécessaire le tous les énumérer ici. Les configurations des figures 1d et 2d, voire de la figure 3a sont pourtant les formes d'exécution préférées, car permettant au mieux de placer le point de basculement b de l'axe 1.2.1 de la roue d'embrayage 1.2 de manière fixe dans le plan de rotation p commun de la roue d'entrée 1.1 et de la première roue de sortie 1.3 . Dans ces cas de figure, le tenon 1.5 sert pour matérialiser avec son extrémité en forme de rotule le point de basculement b de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2, cet axe de rotation 1.2.1 pouvant être matérialisé physiquement par une axe 1.2.1 autour de laquelle tourne la roue d'embrayage 1.2, comme dans la forme d'exécution préférée illustrée aux figures 1d et 2d, ou ne pouvant avoir que la forme d'un axe rudimentaire, tel que dans la forme d'exécution illustré à la figure 3a.The Figures 3a to 3c show, by longitudinal sections analogous to the figure 1d , other embodiments of a clutch device according to the present invention. in particular with regard to how to mount the axis of rotation 1.2.1 of the clutch wheel 1.2 so that it can be inclined. Indeed, the joints at the first end 1.2.2 and the second end 1.2.3 of the axis of rotation 1.2.1 of the clutch wheel 1.2 can, in principle, also be achieved by reversing the parts male and female at ends 1.2.2, 1.2.3. For example, the figure 3a shows the constellation with two female parts on the clutch wheel 1.2, the male parts being arranged on the post 1.5 and the movable element 1.6. The figure 3b shows the constellation with a female part on the side of the clutch wheel 1.2 oriented towards the movable element 1.6 which comprises a corresponding male part, and a male part placed on the side of the clutch wheel 1.2 oriented towards the post 1.5 which in turn comprises a corresponding female part. This corresponds to an inverse configuration to that of figures 1d and 2d . Finally, figure 3c shows the constellation with two male parts on the clutch wheel 1.2, the female parts being arranged on the post 1.5 and the movable element 1.6. It is also possible to achieve these joints by other equivalent means without it being necessary to list them all here. The configurations of figures 1d and 2d , or even figure 3a however, are the preferred embodiments, because at best allowing to place the tilting point b of the axis 1.2.1 of the clutch wheel 1.2 fixedly in the plane of rotation p common to the input wheel 1.1 and the first output wheel 1.3. In these cases, the tenon 1.5 serves to materialize with its ball-shaped end the tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2, this axis of rotation 1.2.1 can be physically embodied by an axis 1.2.1 around which the clutch wheel 1.2 rotates, as in the preferred embodiment illustrated in FIGS. figures 1d and 2d , or can only have the shape of a rudimentary axis, such as in the embodiment illustrated in FIG. figure 3a .

Une deuxième forme d'exécution d'un dispositif d'embrayage selon la présente invention, intégré dans ce cas à titre d'exemple dans un mécanisme de chronographe, est illustrée schématiquement aux figures 4a à 4d et 5a à 5d qui montrent une vue de dessus, une vue de coté, une vue en perspective, et une coupe longitudinale du mécanisme de chronographe dans deux positions différentes, à savoir lorsque le chronographe est activé et lorsqu'il est arrêté. Si les autres éléments de cette deuxième forme d'exécution du dispositif d'embrayage, mis à part une forme ou un emplacement différent sans que cela produise une différence substantielle, sont identiques par rapport au dispositif selon la première forme d'exécution, le dispositif d'embrayage 1 ne dispose dans cette application que d'une seule roue de sortie 1.3. Par ailleurs, l'élément mobile réalisé également sous forme d'une bascule d'embrayage 1.6 dispose ici d'un agencement sensiblement différent qui ne change pourtant pas sa fonction.A second embodiment of a clutch device according to the present invention, integrated in this case as an example in a chronograph mechanism, is schematically illustrated in FIGS. Figures 4a to 4d and 5a to 5d which show a top view, a side view, a perspective view, and a longitudinal section of the chronograph mechanism in two different positions, namely when the chronograph is activated and when it is stopped. If the other elements of this second embodiment of the clutch device, apart from a shape or a different location without producing a substantial difference, are identical with respect to the device according to the first embodiment, the device In this application, clutch 1 only has a single output wheel 1.3. Furthermore, the movable element also produced in the form of a clutch rocker 1.6 here has a substantially different arrangement that does not change its function.

En effet, le mécanisme de chronographe comporte une roue sur champ 1.1 qui forme dans cette application la roue d'entrée du dispositif d'embrayage selon cette forme d'exécution et qui est entraînée à partir d'un rouage de finissage du mouvement de la montre chronographe correspondante. Il comporte encore une roue de chronographe 1.3 formant une roue de sortie du dispositif d'embrayage et portant une aiguille de secondes de chronographe. Alternativement, cette dernière peut aussi être placée sur une autre roue en liaison cinématique avec la roue de chronographe. Une aiguille de minutes de chronographe montée sur une roue de minutes de chronographe qui est en liaison cinématique avec la roue de chronographe 1.3 n'est pas illustrée aux figures, car cette constellation générale est bien connue à l'homme du métier. Le mécanisme de chronographe comporte enfin une roue d'embrayage 1.2 disposée entre la roue sur champ 1.1 et la roue de chronographe 1.3. Dans l'exemple illustré aux figures, les centres de la roue sur champ 1.1, de la roue d'embrayage 1.2, et de la roue de chronographe 1.3 forment un angle droit, mais il pourraient également être alignés ou former un autre angle, en fonction de la construction du mouvement dans lequel le mécanisme devrait être intégré. Cela dépend aussi de la forme de la bascule d'embrayage 1.6 servant d'élément mobile du dispositif d'embrayage et qui a, dans l'exemple illustré aux figures 4a à 4d et 5a à 5d, une forme globalement allongée ayant deux parties concaves afin d'éviter tout contact avec la périphérie de la roue sur champ 1.1 et de la roue d'embrayage 1.2. Enfin, le mécanisme de chronographe comporte un moyen de commande permettant de démarrer et d'arrêter la mesure d'un temps chronométré, réalisé dans l'exemple illustré par une roue à colonnes 11. Ce moyen de commande pourrait être réalisé par tout autre moyen équivalent connu à l'homme du métier et sert à commander les déplacements angulaires de la bascule d'embrayage 1.6. Ce dernier est monté pivotable à l'une de ses extrémités autour de l'axe de pivotement 1.6.4, tandis que l'autre de ses extrémités est libre et coopère, de préférence à l'aide d'une palette montée sur l'extrémité libre, avec la périphérie de ladite roue à colonnes 11. Le déplacement angulaire de la bascule d'embrayage 1.6 en direction de la roue de chronographe 1.3 est limité par une goupille 12.2 fixé au bâti de la pièce d'horlogerie, son déplacement dans la direction inverse pourrait être limité de manière similaire.Indeed, the chronograph mechanism comprises a field wheel 1.1 which forms in this application the input wheel of the clutch device according to this embodiment and which is driven from a gear train finishing the movement of the corresponding chronograph watch. It still has a chronograph wheel 1.3 forming an output wheel of the clutch device and carrying a chronograph seconds hand. Alternatively, the latter can also be placed on another wheel in kinematic connection with the chronograph wheel. A chronograph minute hand mounted on a chronograph minute wheel which is in kinematic connection with the chronograph wheel 1.3 is not illustrated in the figures, since this general constellation is well known to those skilled in the art. The chronograph mechanism finally comprises a clutch wheel 1.2 disposed between the field wheel 1.1 and the chronograph wheel 1.3. In the example illustrated in the figures, the centers of the field wheel 1.1, the clutch wheel 1.2, and the chronograph wheel 1.3 form a right angle, but they could also be aligned or form another angle, function of the construction of the motion in which the mechanism should be integrated. It also depends on the shape of the clutch rocker 1.6 serving as moving element of the clutch device and which has, in the example shown in FIGS. Figures 4a to 4d and 5a to 5d , a generally elongate shape having two concave parts to avoid contact with the periphery of the field wheel 1.1 and the clutch wheel 1.2. Finally, the chronograph mechanism comprises a control means for starting and stopping the measurement of a timed time, performed in the example illustrated by a column wheel 11. This control means could be achieved by any other means equivalent known to those skilled in the art and serves to control the angular displacement of the clutch rocker 1.6. The latter is pivotally mounted at one of its ends around the pivot axis 1.6.4, while the other of its ends is free and cooperates, preferably with a pallet mounted on the free end, with the periphery of said column wheel 11. The angular displacement of the clutch rocker 1.6 towards the chronograph wheel 1.3 is limited by a pin 12.2 fixed to the frame of the timepiece, its displacement in the reverse direction could be similarly limited.

De façon analogique à la première forme d'exécution, l'élément mobile réalisé sous forme de la bascule d'embrayage 1.6 selon la deuxième forme d'exécution porte la première extrémité 1.2.2 de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2, cela à l'aide d'un pont 1.6.6 monté sur la bascule d'embrayage 1.6 qui comprend un logement 1.6.5 correspondant. La deuxième extrémité 1.2.3 de cet axe 1.2.1 est logée dans une partie 12.1 du bâti de la pièce d'horlogerie, de même similaire à la première forme d'exécution. Par différence à la première forme d'exécution, l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 selon la deuxième forme d'exécution d'un dispositif d'embrayage selon la présente invention est réalisé, dans l'exemple illustré aux figures 4a à 4d et 5a à 5d, tel que décrit ci-dessus dans le contexte de la figure 3c, mis à par le fait que les extrémités 1.2.2, 1.2.3 de l'axe 1.2.1 disposent des parties droites qui sont logées dans des logements correspondants prévus sur l'élément mobile 1.6, respectivement sur ladite partie 12.1 du bâti dans lesquels, préférablement, des pierres ayant une ouverture de diamètre légèrement plus grand que les parties droites sont chassées afin de réduire les forces de frottement. Alternativement, l'axe de rotation 1.2.1 de ce dispositif pourrait être réalisé comme dans la première forme d'exécution, voire tel que décrit ci-dessus dans le contexte des figures 3a et 3b.Analogously to the first embodiment, the movable element in the form of the clutch rocker 1.6 according to the second embodiment carries the first end 1.2.2 of the axis of rotation 1.2.1 of the clutch wheel 1.2, this using a 1.6.6 bridge mounted on the clutch rocker 1.6 which includes a corresponding housing 1.6.5. The second end 1.2.3 of this axis 1.2.1 is housed in a part 12.1 of the frame of the timepiece, similarly similar to the first embodiment. By difference to the first embodiment, the axis of rotation 1.2.1 of the clutch wheel 1.2 according to the second embodiment of a clutch device according to the present invention is realized, in the example illustrated at Figures 4a to 4d and 5a to 5d , as described above in the context of the figure 3c , due to the fact that the ends 1.2.2, 1.2.3 of the axis 1.2.1 have the straight parts which are housed in corresponding housings provided on the movable element 1.6, respectively on said part 12.1 of the frame in which, preferably, stones having an aperture diameter slightly larger than the straight portions are driven to reduce the frictional forces. Alternatively, the axis of rotation 1.2.1 of this device could be achieved as in the first embodiment, or as described above in the context of Figures 3a and 3b .

Dans l'exemple illustré aux figures 4a à 4d et 5a à 5d, le point de basculement b de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 selon la deuxième forme d'exécution n'est alors pas situé dans le plan de rotation p de la roue d'entrée 1.1 et de la première roue de sortie 1.3. Le point b est dans ce cas pourtant situé proche de ce plan p, étant donné que le rapport d:h entre le diamètre d de la roue d'embrayage 1.2 et la hauteur h de l'axe de rotation 1.2.1 comprise entre son intersection avec ledit plan de rotation p et l'extrémité montée sur l'élément mobile 1.6 est dans cette constellation choisie de façon à être supérieur à la valeur choisie pour la constellation selon la première forme d'exécution, dans laquelle le point b se trouve par défaut dans le plan p. Ainsi, si le rapport d:h entre le diamètre d de la roue d'embrayage 1.2 et la hauteur h effective de l'axe de rotation 1.2.1 est dans la première forme d'exécution du dispositif, de préférence, de l'ordre de 1,5:1 à 6:1, ce rapport d:h est, dans la deuxième forme d'exécution du dispositif, de préférence, de l'ordre de 8:1 à 20:1. Ainsi, le diamètre de la roue d'embrayage 1.2 montrée aux figures 4a à 4d et 5a à 5d est par exemple entre 4 mm et 5 mm, tandis que la hauteur h effective de l'axe de rotation 1.2.1 est de 0,4 mm environ, correspondant à un rapport d:h de 10:1 à 12,5:1. De façon générale, ledit rapport entre le diamètre de la roue d'embrayage 1.2 et la hauteur de l'axe de rotation 1.2.1 comprise entre son intersection avec ledit plan de rotation p et l'extrémité montée sur l'élément mobile 1.6, appelée ci-dessus aussi hauteur effective h, est donc compris dans la plage des valeurs de 1,5:1 à 20:1, de préférence entre 2:1 et 12:1. Cela permet, en fonction de l'agencement physique choisi pour l'axe de rotation 1.2.1 de la roue d'embrayage 1.2, de garantir que le point de basculement b de la roue d'embrayage 1.2 est situé dans le - ou sensiblement proche du plan de rotation p de la roue d'entrée 1.1 et de la première roue de sortie 1.3. Évidemment, les rapports d:h cités ci-dessus pourraient également être exprimés en termes d'angles correspondants, notamment en termes d'angle de basculement de l'axe de rotation 1.2.1 par rapport à la normale audit plan de rotation p de la roue d'entrée 1.1 et de la première roue de sortie 1.3, voire en termes d'angle de basculement de la roue d'embrayage 1.2 par rapport à ce plan de rotation p. Cet angle conduit, malgré ses petites valeurs et grâce au rapport d:h choisi de manière adéquate, à un écartement suffisamment grand pour permettre le désengagement des dentures sur la roue d'embrayage 1.2 et la première roue de sortie 1.3.In the example shown in Figures 4a to 4d and 5a to 5d , the tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2 according to the second embodiment is then not located in the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3. In this case, however, the point b is close to this plane p, since the ratio d: h between the diameter d of the clutch wheel 1.2 and the height h of the axis of rotation 1.2.1 between its intersection with said plane of rotation p and the end mounted on the movable element 1.6 is in this constellation chosen so as to be greater than the value chosen for the constellation according to the first embodiment, in which the point b is by default in the plane p. Thus, if the ratio d: h between the diameter d of the clutch wheel 1.2 and the effective height h of the axis of rotation 1.2.1 is in the first embodiment of the device, preferably, the From 1.5: 1 to 6: 1, this ratio d: h is, in the second embodiment of the device, preferably of the order of 8: 1 to 20: 1. Thus, the diameter of the clutch wheel 1.2 shown in FIGS. Figures 4a to 4d and 5a to 5d is for example between 4 mm and 5 mm, while the effective height h of the axis of rotation 1.2.1 is about 0.4 mm, corresponding to a d: h ratio of 10: 1 to 12.5: 1 . In general, said ratio between the diameter of the clutch wheel 1.2 and the height of the axis of rotation 1.2.1 between its intersection with said plane of rotation p and the end mounted on the movable element 1.6, Also referred to above also effective height h, is therefore in the range of values from 1.5: 1 to 20: 1, preferably from 2: 1 to 12: 1. This allows, depending on the physical arrangement chosen for the axis of rotation 1.2.1 of the clutch wheel 1.2, to ensure that the tilting point b of the clutch wheel 1.2 is located in the - or substantially close to the plane of rotation p of the input wheel 1.1 and the first output wheel 1.3. Of course, the ratios d: h quoted above could also be expressed in terms of corresponding angles, in particular in terms of the tilt angle of the axis of rotation 1.2.1 with respect to the normal to said plane of rotation p of the input wheel 1.1 and the first output wheel 1.3, or in terms of tilting angle of the clutch wheel 1.2 relative to this plane of rotation p. This angle leads, despite its small values and thanks to the ratio d: h appropriately chosen, a spacing large enough to allow disengagement of the teeth on the clutch wheel 1.2 and the first output wheel 1.3.

Par conséquent, l'axe de rotation 1.2.1 de la roue d'embrayage 1.2 peut alors également dans la deuxième forme d'exécution du dispositif d'embrayage selon la présente invention illustrée aux figures 4a à 4d et 5a à 5d être incliné par rapport à la normale au plan de rotation p de la roue d'entrée 1.1 et de la roue de sortie 1.3, cela par pivotement angulaire de la bascule d'embrayage 1.6, ces pivotements étant contrôlés par la roue à colonnes 11 d'une manière connue à l'homme du métier. Si la deuxième forme d'exécution du dispositif a été décrite principalement pour montrer des variantes au niveau de l'axe de rotation 1.2.1 ainsi que de l'application, il est clair que le mécanisme de chronographe correspondant pourrait être réalisé tout en prévoyant un tenon 1.5 fixé au bâti de la pièce d'horlogerie ayant une extrémité en forme due rotule qui sert de point de basculement b de l'axe de rotation 1.2.1 de la roue d'embrayage 1.2, tel que décrit à titre d'exemple dans le contexte de la première forme d'exécution pour l'application dans un dispositif de mise à l'heure. Étant donné qu'une intégration du dispositif d'embrayage selon l'invention dans un mécanisme de chronographe permet plus facilement d'augmenter le diamètre d de la roue d'embrayage, cet exemple montre que le dispositif peut être adapté en fonction de son application et dispose donc d'une certaine flexibilité.Therefore, the axis of rotation 1.2.1 of the clutch wheel 1.2 can then also in the second embodiment of the clutch device according to the present invention illustrated Figures 4a to 4d and 5a to 5d be inclined relative to the normal to the plane of rotation p of the input wheel 1.1 and the output wheel 1.3, by angular pivoting of the clutch rocker 1.6, these pivoting being controlled by the column wheel 11 of in a manner known to those skilled in the art. If the second embodiment of the device has been described mainly to show variations in the axis of rotation 1.2.1 and the application, it is clear that the corresponding chronograph mechanism could be achieved while providing a post 1.5 fixed to the frame of the timepiece having a ball-shaped end which serves as a tilting point b of the axis of rotation 1.2.1 of the clutch wheel 1.2, as described as example in the context of the first embodiment for the application in a time-setting device. Since an integration of the clutch device according to the invention in a chronograph mechanism makes it easier to increase the diameter d of the clutch wheel, this example shows that the device can be adapted according to its application. and therefore has some flexibility.

Le fonctionnement du dispositif d'embrayage selon la deuxième forme d'exécution est entièrement analogique à ce qui a été expliqué par rapport aux figures 1a à 1c et 2a à 2c illustrant le fonctionnement du dispositif selon la première forme d'exécution, mis à part le fait que le basculement de la roue d'embrayage 1.2 ne produit qu'un embrayage, voire un débrayage de la roue de chronographe, sans produire d'autres conséquences.The operation of the clutch device according to the second embodiment is entirely analog to what has been explained with respect to the Figures 1a to 1c and 2a to 2c illustrating the operation of the device according to the first embodiment, apart from the fact that the tilting of the clutch wheel 1.2 produces only a clutch or a clutch of the chronograph wheel, without producing other consequences .

Vu l'agencement et le fonctionnement du dispositif décrit ci-dessus, on comprend qu'un dispositif d'embrayage selon la présente invention permet d'éliminer la rotation parasite qui se produit dans des dispositifs classiques, étant donné que l'embrayage et le débrayage sont effectués par basculement. De plus, le dispositif est réalisé de manière particulièrement simple, en n'utilisant qu'un nombre de pièces strictement nécessaire. En particulier, étant donné que l'embrayage, respectivement le débrayage est réalisé principalement en dotant la roue d'embrayage d'un diamètre suffisamment grand par rapport à la hauteur effective de son axe pour permettre son désengagement d'au moins la première roue de sortie, la hauteur du dispositif peut être réduite. De ce fait, le dispositif dispose d'un encombrement minimal et est adapté à être intégré même dans des mouvements extra-plats. En même temps, il est doté d'un fonctionnement sûr et fiable. Ces avantages sont obtenus tout en garantissant que le dispositif d'embrayage selon la présente invention peut être utilisé pour plusieurs applications et dispose donc d'une grande flexibilité. En particulier, ce dispositif d'embrayage peut avantageusement être intégré dans des dispositifs de mise à l'heure, des montres chronographes ou à rattrapante, ou encore pour toute fonction où l'utilisateur peut faire un choix de correction ou une manipulation ou encore un système où l'on désire pouvoir lier ou délier, par exemple un désacouplement d'un automatique. En général, il peut être intégré dans toute sorte de pièces d'horlogerie, de préférence dans des montres bracelet mécaniques, mais il est aussi possible de l'utiliser dans des montres électroniques.In view of the arrangement and operation of the device described above, it is understood that a clutch device according to the present invention makes it possible to eliminate parasitic rotation which occurs in conventional devices, since the clutch and the disengagement are performed by tilting. In addition, the device is made particularly simple, using only one number of pieces strictly necessary. In particular, since the clutch or disengagement is achieved mainly by providing the clutch wheel with a sufficiently large diameter relative to the effective height of its axis to allow its disengagement of at least the first wheel of output, the height of the device can be reduced. As a result, the device has a minimal footprint and is adapted to be integrated even in extra-flat movements. At the same time, it has a safe and reliable operation. These advantages are obtained while ensuring that the clutch device according to the present invention can be used for several applications and therefore has great flexibility. In particular, this clutch device can advantageously be integrated in time-setting devices, chronograph or split-seconds watches, or for any function where the user can make a choice of correction or manipulation or else a system where one wishes to be able to bind or loosen, for example a decoupling of an automatic. In general, it can be integrated in all kinds of timepieces, preferably in mechanical wristwatches, but it is also possible to use it in electronic watches.

Claims (15)

  1. A coupling device (1) for timepieces, in particular for time-setting devices (10) or chronograph watches (20), the device comprising an entry wheel (1.1), a coupling wheel (1.2) meshing with the entry wheel (1.1), and at least one first exit wheel (1.3), said coupling wheel (1.2) being disposed in a manner substantially coplanar relative to the plane of rotation (p) of the entry wheel (1.1) and of the first exit wheel (1.3) and being arranged such that it is adapted to tilt relative to said plane of rotation so as to be able to occupy at least a first coupling position in which the coupling wheel (1.2) meshes with the first exit wheel (1.3) and a second coupling position in which the coupling wheel (1.2) is decoupled from the first exit wheel (1.3), the device comprising a movable element (1.6) allowing to control the change of position between the first and the second position of the coupling wheel (1.2), characterised in that said coupling wheel (1.2) comprises an axis of rotation (1.2.1) adapted to be inclined relative to the normal to said plane of rotation (p) of the entry wheel (1.1) and of the first exit wheel (1.3) by being mounted pivotably at each of the ends thereof (1.2.2, 1.2.3), at least one end (1.2.2) of said axis of rotation (1.2.1) being mounted on said movable element (1.6), and in that the ratio (d:h) between the diameter (d) of the coupling wheel (1.2) and the height (h) of the axis of rotation (1.2.1) comprised between the intersection of said axis of rotation with said plane of rotation (p) and the end mounted on the movable element (1.6) is greater than 1.5:1.
  2. The coupling device according to the preceding claim, characterised in that said ratio between the diameter of the coupling wheel (1.2) and the height of the axis of rotation (1.2.1) comprised between the intersection of said axis of rotation with said plane of rotation (p) and the end mounted on the mobile element (1.6) is comprised within the range of values from 1.5:1 to 20:1, preferably between 2:1 and 12:1.
  3. The coupling device according to one of the preceding claims, characterised in that the tilt point (b) of the coupling wheel (1.2) is arranged in, or substantially close to, the plane of rotation (p) of the entry wheel (1.2) and of the first exit wheel (1.3).
  4. The coupling device according to one of the preceding claims, characterised in that it comprises a post (1.5), of which the end serves as a tilt point (b) of the axis of rotation (1.2.1) of the coupling wheel (1.2).
  5. The coupling device according to one of the preceding claims, characterised in that the other end (1.2.3) of said axis of rotation (1.2.1) is constrained by a fixed part (1.5) of the frame of the timepiece.
  6. The coupling device according to one of the preceding claims 1 to 4, characterised in that the other end (1.2.3) of said axis of rotation (1.2.1) is mounted on a second movable element.
  7. The coupling device according to one of the preceding claims, characterised in that the entry wheel (1.1) has a greater thickness, equivalent substantially to a multiple of the thickness of said at least one first exit wheel (1.3).
  8. The coupling device according to one of the preceding claims, characterised in that it comprises at least one second exit wheel (1.4).
  9. The coupling device according to one of the preceding claims, characterised in that said movable element (1.6) comprises a resilient arm (1.6.1).
  10. The coupling device according to one of the preceding claims, characterised in that said movable element (1.6) comprises a guide means (1.6.3) limiting the movement of said movable element (1.6) and defining the maximum tilt thereof in the first and the second coupling position, respectively the end positions of the coupling wheel (1.2).
  11. A time-setting device (10) comprising a winding stem (10.1) adapted to occupy at least three axial control positions, a winding pinion (10.2) mounted so as to be freely rotatable about the winding stem (10.1), a sliding pinion (10.3) mounted slidingly on the winding stem (10.1), the sliding pinion (10.3) being rotatably connected to the winding stem (10.1) and adapted to mesh with said winding pinion (10.2) when the winding stem (10.1) is in the first axial position thereof, a setting and correction wheel (1.1) forming an entry wheel and being adapted to mesh with said sliding pinion (10.3) when the winding stem (10.1) is in the second or third axial position thereof, a pull-out piece (10.4) controlled by the winding stem (10.1) and allowing to displace the sliding pinion (10.3) between a first winding position in which the sliding pinion (10.3) meshes with said winding pinion (10.2), when the winding stem (10.1) is in the first axial control position thereof, and a second correction position in which the sliding pinion (10.3) meshes with said setting and correction wheel (1.1), when the winding stem (10.1) is in the second or third axial control position thereof, a first correction wheel (1.3) forming a first exit wheel and adapted to be kinematically connected to the setting and correction wheel (1.1) when the winding stem (10.1) is in the second axial position thereof, and a second correction wheel (1.4) forming a second exit wheel and adapted to be kinematically connected to the setting and correction wheel (1.1) when the winding stem is in the third axial position thereof, characterised in that it comprises a coupling device (1) according to one of the preceding claims, said movable element being formed by a coupling yoke (1.6) and cooperating with said pull-out piece (10.4) so as to control the change of position between the first and the second coupling position of the coupling wheel (1.2), the latter meshing with the first correction wheel (1.3) in the first coupling position thereof and with the second correction wheel (1.4) in the second coupling position thereof, the coupling wheel (1.2) being decoupled from the first correction wheel (1.3) in this second position of the coupling device.
  12. The time-setting device according to the preceding claim, characterised in that said coupling yoke (1.6) comprises a control portion (1.6.2) adapted to cooperate with said pull-out piece (10.4) so as to be able to occupy a first and a second tilt position in which the coupling wheel (1.2) is in the first, respectively the second coupling position thereof, said control portion preferably comprising a first section in the form of an arc of a circle (1.6.2.1) and a second section in the form of an offset arc of a circle (1.6.2.2).
  13. A chronograph mechanism (20), intended to be integrated in a chronograph watch, comprising a chronograph seconds hand mounted on a chronograph wheel (1.3) forming an exit wheel, a chronograph minutes hand mounted on a chronograph minutes wheel, a seconds wheel (1.1) forming an entry wheel and driven by a geartrain of the movement of the chronograph watch, and a control means allowing to start and stop the measurement of a measured time, characterised in that it comprises a coupling device (1) according to one of the preceding claims 1 to 10, said movable element being formed by a coupling yoke (1.6) cooperating with said control means so as to control the change of position between the first and the second coupling position of the coupling wheel (1.2), the latter meshing, in the first coupling position thereof, with the chronograph wheel (1.3), the coupling wheel (1.2) being decoupled from the chronograph wheel (1.3) in the second coupling position thereof.
  14. The chronograph mechanism (20) according to the preceding claim, characterised in that the control means consists of a column wheel cooperating with the coupling yoke (1.6) so as to control the inclination of the axis of rotation (1.2.1) of the coupling wheel (1.2) by controlling the angular position of said coupling yoke (1.6).
  15. A timepiece, in particular a mechanical wristwatch, characterised in that it comprises a coupling device (1) according to one of the preceding claims 1 to 10, a time-setting device (10) according to one of the preceding claims 11 to 12, and/or a chronograph mechanism (20) according to one of the preceding claims 13 to 14.
EP15171351.8A 2014-06-19 2015-06-10 Tilting coupling device for timepiece Active EP2957964B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00933/14A CH709796A1 (en) 2014-06-19 2014-06-19 An rocker clutch timepiece.

Publications (3)

Publication Number Publication Date
EP2957964A2 EP2957964A2 (en) 2015-12-23
EP2957964A3 EP2957964A3 (en) 2016-06-08
EP2957964B1 true EP2957964B1 (en) 2017-02-01

Family

ID=53886814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15171351.8A Active EP2957964B1 (en) 2014-06-19 2015-06-10 Tilting coupling device for timepiece

Country Status (7)

Country Link
US (1) US9411316B2 (en)
EP (1) EP2957964B1 (en)
JP (1) JP6614819B2 (en)
CN (1) CN105319942B (en)
CH (1) CH709796A1 (en)
ES (1) ES2622989T3 (en)
HK (1) HK1215309A1 (en)

Families Citing this family (3)

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EP3026506B1 (en) * 2014-11-26 2019-01-16 The Swatch Group Management Services AG Timer with speed selector
EP3923085A1 (en) * 2015-04-01 2021-12-15 Rolex Sa Winding and/or correction mechanism of at least one timepiece function
CH711049A1 (en) * 2015-05-08 2016-11-15 Bucherer Ag Year calendar for mechanical watches.

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Also Published As

Publication number Publication date
CN105319942B (en) 2019-03-26
US20150370221A1 (en) 2015-12-24
JP6614819B2 (en) 2019-12-04
EP2957964A3 (en) 2016-06-08
EP2957964A2 (en) 2015-12-23
HK1215309A1 (en) 2016-08-19
CN105319942A (en) 2016-02-10
CH709796A1 (en) 2015-12-31
JP2016004046A (en) 2016-01-12
ES2622989T3 (en) 2017-07-10
US9411316B2 (en) 2016-08-09

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