EP3584643A1 - Instantaneous command device for date display of timepieces - Google Patents
Instantaneous command device for date display of timepieces Download PDFInfo
- Publication number
- EP3584643A1 EP3584643A1 EP18178458.8A EP18178458A EP3584643A1 EP 3584643 A1 EP3584643 A1 EP 3584643A1 EP 18178458 A EP18178458 A EP 18178458A EP 3584643 A1 EP3584643 A1 EP 3584643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toothed wheel
- trigger
- date
- cam
- drive
- 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.)
- Granted
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Classifications
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- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
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- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
- G04B19/25386—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement manually corrected at the end of months having less than 31 days
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- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
-
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
Definitions
- the present invention relates to an instantaneous date control device for a date display of a timepiece, in particular for a date display of a mechanical wristwatch, according to the preamble of claim 1 as well as a watch movement, respectively a timepiece comprising such an instantaneous date control device.
- date displays of the instant change type are known in watchmaking. These displays make it possible to avoid the disadvantages of date displays of the dragging date change type which are normally of rather simple construction but only produce a more or less slow change of date, therefore clearly perceptible by the user. This is also manifested in the fact that the date displayed is no longer centered in the date window for several minutes or hours, when the date disc shifts.
- the date displays of the instantaneous change type are equipped with a more complex mechanism enabling the date change to be made by an instantaneous rotation of the date disc, that is to say by a jump. snapshot that normally occurs every day at midnight.
- This kind of instantaneous date display is, moreover, known from the document.
- 1,673,663 which discloses an instantaneous date mechanism comprising a first mobile carrying a cam which is free to rotate over a limited angular range, a control lever applied by a first spring to said cam, and an actuation lever driven by said control lever and making it possible to rotate by the 'via a drive finger step by step a date disc.
- Said actuation lever is equipped with a sliding guide in which is housed a pin fixedly mounted on a bridge of the corresponding timepiece and the drive finger, articulated on the actuation lever, is prestressed by a second spring towards the date disc.
- the German patent DE 10 2015 011 324 describes a mechanism similar to that disclosed by the document FROM 1,673,663 and likewise comprising a first mobile carrying a cam, but having more than a second mobile on which is fixed a pin which, instead of being fixed on a bridge as in the mechanism according to the document FROM 1,673,663 , is housed eccentrically in a sliding guide of a drive lever. Furthermore, the mechanism according to the document DE 10 2015 011 324 combines the control lever and the mechanism actuation lever according to the document FROM 1,673,663 in a piece called the date trigger rocker. And the sliding guide provided in the mechanism according to the document FROM 1,673,663 on the actuating lever is arranged in the mechanism according to the document DE 10 2015 011 324 on said drive lever. The latter is mounted in this case, by removing the second spring preloading the drive finger of the mechanism according to the document FROM 1,673,663 , pivotally on the date trigger lever to move the drive lever away from the date disc and bring it closer by means of said sliding guide
- This mechanism allows an instantaneous date display and partially avoids the problem to which other mechanisms are also affected. Similar, namely that a manual correction of the hours and / or the date using the crown of the corresponding timepiece during "prohibited hours of manual correction" can lead, depending on the exact circumstances, to a malfunction, even damage, of the date mechanism. On the other hand, it does not completely solve this problem because a manual correction is not possible during the instantaneous change of the date.
- guidance of the path of the mechanism drive lever according to the document DE 10 2015 011 324 by sliding, also present in the mechanism according to the document FROM 1,673,663 does not seem optimal.
- the object of the present invention is therefore to remedy the aforementioned drawbacks of the known devices and to make available an instantaneous date control device for the watchmakers' date displays which also makes it possible to minimize the torque gain on the watch movement.
- effective protection of the date disc against a double jump a possibility of manual correction of the hours and / or the date using the crown of the corresponding timepiece, in particular a setting the time anti-clockwise and rapid correction of the date, without any time range restriction, that is to say without "prohibited manual correction hours", and without risk of damage to the device, as well as an optimized trajectory of moving parts during operation of the device.
- These objectives should be achieved by ensuring a relatively space-saving and modular construction which should also lend itself to extra-flat movements as well as reliable operation of the device.
- the present invention provides an instantaneous date control device for a watchmaker date display of the aforementioned type, in particular for a mechanical timepiece, which is distinguished by the characteristics set out in claim 1, as well as a movement watchmaker, respectively a corresponding timepiece comprising such a device.
- the scale mobile further comprises a pivot axis placed eccentrically on said second toothed wheel and said trigger and drive rocker is entirely pivotally mounted around said pivot axis on said second toothed wheel, so that said second gear wheel allows said pivoting axis of the trigger and drive lever to rotate by rotation so as to place the drive finger of the lever triggering and driving behind a tooth of the date disc just before each instantaneous jump as well as placing it at the outer periphery of the trajectory of the teeth of the date disc after each instantaneous jump.
- the instantaneous date device is designed so as to allow an instantaneous change of the date indication while guaranteeing a low torque gain on the watch movement, due to the distribution of the torque gain over a maximum duration of the day as well as the instantaneous release of the accumulated energy.
- the replacement of the sliding guide according to the patent DE 10 2015 011 324 by a pivot axis placed eccentrically on the second toothed wheel of the device according to the present invention, while arranging the trigger and drive lever on the second toothed wheel instead of placing it on a bridge allows an optimized trajectory of the different parts of the device.
- the drive finger is arranged retractably with respect to the trigger and drive lever in order to allow the correction of the date by a rapid correction means of date of the corresponding timepiece.
- the drive finger is formed either by a separate piece pivotally mounted on the trigger and drive rocker or by a flexible piece mounted on or formed in one piece with the trigger and drive rocker.
- the trigger and drive lever comprises a preload spring exerting a force on the drive finger preloading it in its normal operating position towards the teeth located on the date disc.
- the triggering and driving force of the triggering and driving spring and the preloading force of the preloading spring typically do not have the same threshold, so that the presence of the preloading spring in the device control according to the present invention has the additional advantage of allowing improved comfort of use, as will be more clearly explained below.
- the first mobile and / or the second mobile of the device can be the subject of alternative arrangements, more specifically by using a unidirectional declutching means arranged, either on the first gear, that is between the first gear and the cam.
- a unidirectional declutching means arranged, either on the first gear, that is between the first gear and the cam.
- An instantaneous date control device is intended to be integrated in a timepiece equipped with a date display, in particular in a wristwatch provided with a mechanical watch movement.
- the device can also be used in a timepiece equipped with a watch movement of another type, for example a quartz movement, so that the following explanations apply equally to all these cases.
- the instantaneous date control device for a date display comprises a date disc 1, a gear train 2 forming a kinematic connection between the instantaneous control device and a basic clockwork movement of the piece d corresponding clock, a first mobile 3, the cam mobile, a second mobile 4, the rocking mobile, a trigger and drive rocker 4.3, a trigger and drive spring 5, and a holding means 6.
- these components can be mounted on a bridge or a frame of the basic watch movement of the corresponding timepiece or, in the case of modular construction, on a bridge or a frame of a module instantaneous calendar which can then be placed as a block on the basic watch movement. Since the structure and operation of the device are identical in the two cases, the following explanations apply equally to these cases.
- the watchmaker typically speaks of date disc 1, this latter is typically produced by a ring on which the dates from 1 to 1 are written. 31 and which is provided on its inner periphery with a toothing comprising an adequate number of teeth, normally 31 teeth.
- these teeth are, in the control device according to the present invention, produced by more or less asymmetrical saw teeth.
- the gear train 2 which forms the kinematic connection between the instantaneous control device and the basic clockwork movement of the corresponding timepiece may for example consist, as visible by way of example in FIGS.
- first intermediate pinion 2.1 driven by an hour wheel, shown in Figures 1a and 1b in the center of the date disc 1, and in a second intermediate pinion 2.2 being in gear with the first intermediate pinion 2.1.
- the hour wheel rotates clockwise at the speed of two revolutions per day, so that the first intermediate gear 2.1 rotates counterclockwise and the second intermediate gear 2.2 rotates clockwise, as symbolically indicated by arrows at the figure 1b .
- the first and second intermediate pinions 2.1, 2.2 also have a speed reduction function so that the first and second mobiles 3, 4 rotate at the speed of one revolution per day.
- the first mobile 3, the cam mobile comprises a first toothed wheel 3.1 driven by said gear train 2 at the speed of one revolution per day and a cam 3.2 mounted in free rotation, over a limited angular range and / or in a single direction of rotation, on said first gear 3.1 and also temporarily coupled in rotation to said first gear 3.1, so that the cam 3.2 is driven by the first gear 3.1, due to its freedom rotating in a limited angular range and / or in a single direction of rotation, discontinuously at the speed of one revolution per day.
- the first gear 3.1 and therefore the cam normally rotate counterclockwise.
- the cam 3.2 is mounted so as to rotate freely, over a limited angular range, on said first toothed wheel 3.1 as well as temporarily coupled in rotation to said first toothed wheel 3.1 by means of a guide groove 3.1.1 substantially in the form of a semi-circular arc arranged on the first toothed wheel 3.1 as well as a pin 3.2.1 fixed on the cam and housed in said guide groove 3.1.1, or vice versa.
- said cam 3.2 is rotatably mounted on said first gear 3.1 about an eccentric axis of rotation 3.1.2 relative to the axis of rotation of the first gear 3.1, said guide groove 3.1.1 substantially in the form of a semi-circular arc being also also centered around said eccentric axis of rotation 3.1.2.
- the cam 3.2 is mounted so as to rotate freely, over a limited angular range, on said first toothed wheel 3.1 as well as temporarily coupled in rotation to said first toothed wheel 3.1 by means of a guide groove 3.1.4.1 substantially in the form of a circular arc sector arranged on the first toothed wheel 3.1, this sector preferably having an angular extent situated in the range from 25 ° to 65 °, as well as a pin 3.2.1 fixed on the cam and housed in said guide groove 3.1.4.1, or vice versa.
- the first gear 3.1 is separated into two parts, namely a ring 3.1.3 of the first gear driven counterclockwise by said gear train 2 and a disc 3.1.4 of the first gear wheel.
- the disc 3.1.4 comprises said guide groove 3.1.4.1 and is housed inside the ring 3.1.3 in a freely rotatable manner, but kinematically linked to the ring 3.1.3 by a one-way declutching means arranged on these two parts 3.1.3, 3.1.4 of the first toothed wheel 3.1.
- the ring 3.1.3 comprises a hook 3.1.3.1 of the one-way declutching means and the disc 3.1.4 comprises a drive shoulder 3.1.4.2 corresponding to the one-way declutching means, so that the drive of the ring 3.1.3 anti-clockwise also causes the drive 3.1.4 of the first gear 3.1 as soon as the hook 3.1.3.1 of the ring 3.1.3 comes into contact with the shoulder d drive 3.1.4.2 of the disc 3.1.4.
- a training of the ring 3.1.3, that is to say of the first gear 3.1, clockwise causes a disengagement of the unidirectional disengaging means, so that the disc 3.1.4 is not driven in this case.
- the cam 3.2 is rotatably mounted on said first gear 3.1 coaxially with respect to the axis of rotation of the first gear 3.1.
- the cam 3.2 is driven counterclockwise by the first toothed wheel 3.1, that is to say that it is temporarily coupled in rotation to the first toothed wheel 3.1, while it can rotate freely, in particular anti-clockwise, over an angular range limited by the guide groove 3.1.4.1 in the form of a sector of an arc of a circle, therefore over an angular range going from approximately 25 ° to 65 °.
- the cam 3.2 could even rotate, counterclockwise and due to the presence of the unidirectional declutching means, completely freely relative to the ring 3.1.3, but causes the disc 3.1.4 when the relative rotation between cam 3.2 and disc 3.1.4 exceeds the angular range limited by the guide groove 3.1.4.1 on disc 3.1.4. In this case, due to the disengagement of the unidirectional disengagement means, the rotation of the disc 3.1.4 counterclockwise does not cause rotation of the ring 3.1.3.
- the cam 3.2 is mounted so as to rotate freely, in a single direction of rotation, on said first toothed wheel 3.1 as well as temporarily coupled in rotation to said first toothed wheel 3.1 by means of 'a one-way declutching means 3.1.5, 3.2.2 arranged between the first toothed wheel 3.1 and the cam 3.2.
- the first toothed wheel 3.1 comprises a drive shoulder 3.1.5 of the unidirectional declutching means and the cam 3.2 comprises a hook 3.2.2 corresponding to the unidirectional declutching means, so that the drive of the first toothed wheel 3.1 counterclockwise also causes the drive of the cam 3.2 as soon as the drive shoulder 3.1.5 of the first toothed wheel 3.1 comes into contact with the hook 3.2.2 of the cam 3.2, while driving the first toothed wheel 3.1 clockwise causes a disengagement of the one-way declutching means, so that the cam 3.2 is not not driven in this direction of rotation.
- the cam 3.2 is rotatably mounted on said first gear 3.1 coaxially with respect to the axis of rotation of the first gear 3.1.
- the cam 3.2 is driven counterclockwise by the first gear 3.1, that is to say that it is temporarily coupled in rotation to the first gear 3.1, as soon as the drive shoulder 3.1.5 of the first gear 3.1 comes into contact with the hook 3.2.2 of the cam 3.2 and the cam 3.2 can rotate freely, without considering the other parts of the device , counterclockwise, this also due to the disengagement of the unidirectional disengagement means 3.1.5, 3.2.2.
- the cam 3.2 is also mounted so as to rotate freely, in a single direction of rotation, on said first toothed wheel 3.1 as well as temporarily coupled in rotation to said first toothed wheel 3.1 by means of a one-way declutching means 3.1 .5, 3.2.2 arranged between the first toothed wheel 3.1 and the cam 3.2.
- This embodiment then has the same construction principle as the third embodiment of the first mobile, but having a minimum height is specifically adapted to integration in extra-flat movements, as seen in particular on the figure 2l .
- the second mobile 4 the tilting mobile, comprises a second gear 4.1 driven by means of said first gear 3.1 at the speed of one revolution per day.
- the direction of rotation of the second toothed wheel 4.1 of the second mobile 4 is, as symbolically indicated by an arrow at the figure 1b , opposite that of said first gear 3.1 of the first mobile 3.
- the second gear 4.1 is driven directly by the first gear 3.1, but it is obviously possible to provide intermediate wheels ensuring a suitable kinematic link between the first gear 3.1 and the second gear 4.1.
- the trigger and drive lever 4.3 carries a probe 4.4 resting on said cam 3.2 mounted on the first toothed wheel 3.1 of the first mobile 3 and serving as trigger finger as well as giving the angular orientation of the lever. triggering and driving 4.3 with respect to the other parts of the device. Said trigger and drive lever 4.3 also carries a drive finger 4.5 which can come into engagement with the teeth 1.1 located on the date disc 1 in order to drive the latter step by step. In addition, said trigger and drive lever 4.3 carries a hooking means 4.7, for example a pin, on which the trigger and drive spring 5 is supported.
- the trigger and drive spring 5 is mounted on a bridge or the frame of the corresponding timepiece, or even of an instantaneous date module, and exerts on said hooking means 4.7 of the trigger lever and d 'drive 4.3 a prestressing force capable of pressing the probe 4.4 against the cam 3.2 of the first mobile 3.
- the trigger and drive spring 5 stores enough energy to ensure an instantaneous jump of the date disc 1.
- the holding means 6 indicated that symbolically at the figure 1b and produced for example by a jumper or any other suitable elastic means, ensures the angular position of the date disc 1 between two instantaneous jumps.
- the pressing force exerted by the holding means 6 is chosen so that the date disc 1 cannot jump under the effect of an external shock, but nevertheless allowing one and only one instantaneous jump of the disc. date 1 under the effect of said drive finger 4.5 as well as a possible rapid correction of the date.
- the elasticity of the drive finger 4.5 of the trigger and drive lever 4.3 is optional security.
- the instantaneous control device is distinguished, in particular, from the fact that the tilting mobile 4 also comprises a pivot axis 4.2 placed eccentrically on said second toothed wheel 4.1.
- Said trigger and drive lever 4.3 is entirely pivotally mounted around this pivot axis 4.2 on said second gear 4.1, so that said second gear 4.1 allows said pivot axis 4.2 to be rotated by the trigger and training lever 4.3 so as to place the drive finger 4.5 of the trigger and training lever 4.3 behind a tooth 1.1 of the date disc 1 just before each instantaneous jump as well as placing it in outer periphery of the path of the teeth 1.1 of the date disc 1 after each instantaneous jump.
- the cooperation between the first gear 3.1, the cam 3.2 mounted on said first gear 3.1 and the probe 4.4 of the trigger and drive lever 4.3 makes it possible to tension the trigger and drive spring 5 when the lever trigger and drive 4.3 is distant, respectively its drive finger 4.5 is placed outside the path of the teeth 1.1 of the date disc 1 as well as instantly release the energy accumulated by the trigger spring and d drive 5 when the rocker trigger and drive 4.3 is brought closer, respectively its drive finger 4.5 is momentarily placed behind a tooth 1.1 of the date disc 1 in order to cause a switching of the position of the date disc 1 by an instantaneous jump.
- this drive finger 4.5 is arranged in a retractable manner with respect to the trigger and drive lever 4.3 in order to allow the correction of the date by means of rapid correction of the date of the corresponding timepiece.
- the drive finger 4.5 can be formed by a separate piece pivotally mounted on the trigger and drive lever 4.3, as illustrated schematically and by way of example in FIGS. 1a and 1b, 3a and 3b as well as 3d and 3e.
- the drive finger 4.5 can be formed by a flexible part mounted on or formed in one piece with the trigger and drive lever 4.3, as illustrated schematically and by way of example at figures 3g and 3h as well as 3d and 3k.
- the drive finger 4.5 can be equipped with a stop cooperating with a limiting shoulder arranged on the trigger and drive lever 4.3 so as to limit the pivoting of the drive finger 4.5 to an angular range desired, as also visible in Figures la and 1b, 3a and 3b, 3d and 3e as well as 3g and 3h.
- this lever 4.3 comprises, in a particularly preferred and advantageous manner, a preload spring 4.6 exerting a preload force on the finger 4.5 which preloads it towards the teeth 1.1 located on the date disc 1.
- the preload force of the preload spring 4.6 on the trigger and drive lever 4.3 is chosen so as to be able to secure, in cooperation with the holding means 6, the angular position of the date disc 1 just after each instantaneous jump, in order to avoid any unexpected movement of the date disc 1, as will become clearer in the following description.
- the probe 4.4 located on the trigger and drive lever 4.3 is still equipped with a wheel 4.4.1 mounted for rotation on the free end of said probe 4.4 in order to reduce the friction between the probe 4.4 of the rocker 4.3 and the cam 3.2 of the first mobile 3.
- the 3d and 3f figures show a second embodiment of the trigger and drive lever 4.3 which is not fitted with a wheel on the probe 4.4, but which has a minimum height and is therefore specifically adapted for integration into movements extra-flat, as visible especially on the figure 3f .
- the figures 3g and 3k show a third embodiment of the trigger and drive lever 4.3 which is equipped with a drive finger 4.5 formed in one piece with the lever 4.3.
- the different parts of the trigger and drive lever 4.3 cannot be in physical contact.
- the finger joins this limiting shoulder only during the jump, under the effect of the force to be provided to move the date disc.
- this embodiment is specifically adapted to integration into extra-flat movements.
- the components described above of the various embodiments of an instantaneous date control device according to the present invention can be manufactured by traditional means, such as milling, cutting, stamping, bar turning, and / or electrochemical processes, but they can also be manufactured using non-traditional materials and processes such as silicon, machined by the Deep Reactive Ion Etching (DRIE) process, the nickel machined by electroforming, for example using the UV-Liga process, or by 3D printing.
- DRIE Deep Reactive Ion Etching
- the hour wheel of the basic timepiece movement of this timepiece drives the gear train 2 which in turn rotates the first gear 3.1 at the speed of one revolution per day counterclockwise.
- the cam 3.2 mounted on the first toothed wheel 3.1 and due to its rotational freedom in a limited angular range and / or in a single direction of rotation, is then driven, according to the explanations given above with respect to the different forms of 'execution of the first mobile 3, discontinuously at the speed of one revolution per day in an anti-clockwise direction.
- the trigger and drive lever 4.3 whose probe 4.4 is applied against the spiral peripheral surface of the cam 3.2, then tightens the trigger and drive spring 5.
- the first toothed wheel 3.1 rotates the second gear wheel 4.1 of the second mobile 4 at the speed of one revolution per day clockwise, so as to move by rotation said pivot axis 4.2 of the trigger and drive lever 4.3 and thus placing the drive finger 4.5 of the trigger and drive lever 4.3 behind a tooth of the date disc 1 just before each instantaneous jump and to place it at the outer periphery of the trajectory of the teeth of the date disc 1 after each instantaneous jump.
- An instantaneous jump of the date disc 1 occurs when the probe 4.4 of the trigger and drive lever 4.3 arrives on the steep, or even almost radial, side of the cam 3.2 and, using the energy accumulated by the trigger and drive spring 5 sufficient to ensure an instantaneous jump of the date disc 1, advances the cam 3.2 instantaneously in the counterclockwise direction.
- the cam 3.2 is then and temporarily remains in an advanced angular position relative to the first toothed wheel 3.1, which is possible thanks to the guide groove 3.1.1, 3.1.4.1 and / or thanks to the unidirectional declutching means arranged on the two parts 3.1.3, 3.1.4 of the first gear 3.1, respectively between the first gear 3.1 and the cam 3.2 of the first mobile 3.
- Continuous drive by the hour wheel and the gear train 2 then causes the first gear 3.1 to advance until the cam 3.2 is again temporarily coupled in rotation with this first gear 3.1, so that the cycle begins again.
- the drive finger 4.5 remains, while being brought back, between two teeth 1.1 of the date disc 1 during the operating steps of the device illustrated in figures 4a to 4c , then gradually moves away from the teeth, respectively from the date disc 1, as visible on the figures 4d and 4th , to then position itself behind the next tooth 1.1 of the date disc 1 which will be used for its next instantaneous switching, as visible on the figures 4f and 4g .
- the fact that the drive finger 4.5 remains temporarily between two teeth of the date disc 1 following each instantaneous jump produces an additional advantage of an instantaneous control device according to the present invention.
- the prestressing spring 4.6 the primary function of which is to exert a prestressing force on the drive finger 4.5 to prestress it in the direction of the teeth 1.1 located on the date disc 1
- the prestressing force of this prestressing spring 4.6 on the trigger and drive lever 4.3 is in this case chosen in a corresponding manner, moreover as a function of the arrangement of the holding means 6.
- the first embodiment of the first mobile 3 this is possible thanks to the guide groove 3.1.1 substantially in the form of a semi-arc of a circle and the eccentric axis of rotation 3.1.2 on the first toothed wheel 3.1 as well as thanks to the corresponding shape of the peripheral surface of the cam 3.2 which have the effect that the cooperation between the cam 3.2 and the trigger and drive lever 4.3 during a backward correction produces a trajectory of the finger 4.5 drive left out of contact with the teeth 1.1 of the date disc 1.
- the unidirectional declutching means arranged either on the first toothed wheel 3.1 or between the first toothed wheel 3.1 and the cam 3.2.
- a backward correction produced in these embodiments of the first mobile 3 simply a disengagement of the unidirectional disengagement means, so that the cam 3.2 is not driven and that a rotation of the trigger rocker and drive 4.3 during a backward correction produces a trajectory of the drive finger 4.5 which remains out of contact with the teeth 1.1 of the date disc 1.
- the cam 3.2 has in the first embodiment the first mobile 3 with a less marked slope on its part forming the fall of the cam in order to allow the probe 4.4 of the trigger and drive rocker 4.3 to ascend this slope during a backward correction which causes the triggering and driving spring to be armed 5.
- the part forming the fall of the cam can have a steeper slope because the declutching of the declutching means unidirectional avoids arming the trigger and drive spring 5 during a backward correction, which results at the same time in a longer load sector on the cam 3.2, therefore in a better distribution of the torque.
- the separation of the triggering and driving force exerted by the triggering and driving spring 5 placed on a frame or a bridge of the timepiece, or even of an instantaneous control module, and of the prestressing force exerted by the prestressing spring 4.6 arranged on the trigger and drive lever 4.3 improves the comfort of use, because these forces typically do not have the same threshold and the user does not feel, in a control device according to the present invention, that a much lower return force than in mechanisms of the prior art when it wants to effect a rapid correction of the date.
- the present invention also relates to a movement and a timepiece comprising such an instantaneous control device which are, without it being necessary to describe them in any detail, within the reach of those skilled in the art having the instruction technique according to the present description.
- it is a wristwatch equipped with a mechanical watch movement
- the instantaneous date device allows an instantaneous change of the date indication while guaranteeing a low torque gain on the watch movement, since the torque gain is distributed over a maximum duration of the day as well as the accumulated energy is released instantly.
- the pivot axis placed eccentrically on the second gear of the device according to the present invention while arranging the trigger and drive lever entirely on the second toothed wheel, allows an optimized trajectory of the different parts of the device.
- the device has effective protection of the date disc against a double jump as well as the possibility of manual correction of the hours and / or the date using the crown of the corresponding timepiece. , in particular setting the time anti-clockwise and / or quickly correcting the date, without any restriction on the time range and without risk of damage. All these properties lead to a particularly safe and reliable operation of the device. Furthermore, the instantaneous date device according to the present invention achieves, due to the separation of the triggering and driving force exerted by the triggering and driving spring placed on the frame or a bridge and the force of preload exerted by the preload spring arranged on the trigger and drive rocker, improved comfort of use.
Abstract
Dispositif de commande instantanée de quantième pour pièce d'horlogerie, notamment pour montre bracelet mécanique, comportant- un disque de quantième (1),- un train d'engrenage (2) formant une liaison cinématique entre le dispositif de commande et un mouvement horloger de ladite pièce d'horlogerie,- un premier mobile (3) comprenant une première roue dentée (3.1) entraînée à la vitesse d'un tour par jour et une came (3.2) montée de manière libre en rotation, sur une plage angulaire limitée et/ou dans un sens de rotation unique, sur ainsi que temporairement couplée en rotation à la première roue dentée (3.1),- un deuxième mobile (4) comprenant une deuxième roue dentée (4.1) entraînée à la vitesse d'un tour par jour,- une bascule de déclenchement et d'entraînement (4.3) portant un palpeur (4.4) s'appuyant sur ladite came (3.2) et un doigt d'entraînement (4.5) qui peut venir en prise avec des dents (1.1) situés sur le disque de quantième (1),- un ressort de déclenchement et d'entraînement (5) et- un moyen de maintien (6) permettant d'assurer la position angulaire du disque de quantième (1) entre deux sauts instantanés.Le dispositif se distingue du fait que le deuxième mobile (4) comprend un axe de pivotement (4.2) placé de manière excentrique sur ladite deuxième roue dentée (4.1), ladite bascule de déclenchement et d'entraînement (4.3) étant entièrement montée de manière pivotante autour dudit axe de pivotement (4.2) sur ladite deuxième roue dentée (4.1). La présente invention concerne également un mouvement horloger et une pièce d'horlogerie comportant un tel dispositif.Instantaneous date control device for a timepiece, in particular for a mechanical wristwatch, comprising- a date disc (1), - a gear train (2) forming a kinematic connection between the control device and a watch movement of said timepiece, - a first mobile (3) comprising a first toothed wheel (3.1) driven at the speed of one revolution per day and a cam (3.2) mounted freely in rotation, over a limited angular range and / or in a single direction of rotation, as well as temporarily coupled in rotation to the first toothed wheel (3.1), - a second mobile (4) comprising a second toothed wheel (4.1) driven at the speed of one revolution by day, - a trigger and drive lever (4.3) carrying a feeler (4.4) resting on said cam (3.2) and a drive finger (4.5) which can come into engagement with teeth (1.1) located on the date disc (1), - a spring of d latching and drive (5) and- a holding means (6) for ensuring the angular position of the date disc (1) between two instantaneous jumps.The device is distinguished from the fact that the second mobile (4) comprises a pivot axis (4.2) placed eccentrically on said second gear (4.1), said trigger and drive lever (4.3) being entirely pivotally mounted around said pivot axis (4.2) on said second gear (4.1). The present invention also relates to a timepiece movement and a timepiece comprising such a device.
Description
La présente invention a pour objet un dispositif de commande instantanée de quantième pour un affichage de quantième d'une pièce d'horlogerie, notamment pour un affichage de quantième d'une montre bracelet mécanique, selon le préambule de la revendication 1 ainsi qu'un mouvement horloger, respectivement une pièce d'horlogerie comprenant un tel dispositif de commande instantanée de quantième.The present invention relates to an instantaneous date control device for a date display of a timepiece, in particular for a date display of a mechanical wristwatch, according to the preamble of
En général, les affichages de quantième de type changement instantané sont connus en horlogerie. Ces affichages permettent d'éviter les désavantages des affichages de quantième de type changement traînant de quantième qui sont normalement de construction plutôt simple mais ne produisent qu'un changement de quantième plus ou moins lent, donc bien perceptible par l'utilisateur. Cela se manifeste en outre par le fait que la date affichée n'est plus centrée dans le guichet de date pendant plusieurs minutes ou heures, lorsque le disque de quantième se décale. Afin de remédier à ces désavantages, les affichages de quantième de type changement instantané sont équipés d'un mécanisme plus complexe permettant d'effectuer le changement de quantième par une rotation instantanée du disque de quantième, c'est-à-dire par un saut instantané qui se produit normalement chaque jour à minuit.In general, date displays of the instant change type are known in watchmaking. These displays make it possible to avoid the disadvantages of date displays of the dragging date change type which are normally of rather simple construction but only produce a more or less slow change of date, therefore clearly perceptible by the user. This is also manifested in the fact that the date displayed is no longer centered in the date window for several minutes or hours, when the date disc shifts. In order to overcome these disadvantages, the date displays of the instantaneous change type are equipped with a more complex mechanism enabling the date change to be made by an instantaneous rotation of the date disc, that is to say by a jump. snapshot that normally occurs every day at midnight.
Ce genre d'affichage de quantième instantané est, en outre, connu du document
Le brevet allemand
Ce mécanisme permet un affichage de quantième instantané et évite partiellement le problème dont sont affectés également d'autres mécanismes similaires, à savoir qu'une correction manuelle des heures et/ou du quantième à l'aide de la couronne de la pièce d'horlogerie correspondante pendant des « heures interdites de correction manuelle » peut conduire, en fonction des circonstances exactes, à un dysfonctionnement, voire à un endommagement, du mécanisme de quantième. Par contre, il ne résout pas complètement ce problème car une correction manuelle n'est pas possible lors du changement instantané du quantième. De plus, un guidage de la trajectoire du levier d'entraînement du mécanisme selon le document
Il existe alors toujours le besoin de disposer d'un dispositif de commande instantanée de quantième pour les affichages de quantième horloger qui évite les désavantages et problèmes susmentionnés.There then always exists the need to have an instantaneous date control device for the watchmaking date displays which avoids the aforementioned disadvantages and problems.
Le but de la présente invention est donc de remédier aux inconvénients précités des dispositifs connus et de mettre à disposition un dispositif de commande instantanée de quantième pour les affichages de quantième horlogers qui permet, en outre, de minimiser la prise de couple sur le mouvement horloger de la pièce d'horlogerie correspondante, une protection efficace du disque de quantième contre un double saut, une possibilité de correction manuelle des heures et/ou du quantième à l'aide de la couronne de la pièce d'horlogerie correspondante, en particulier une mise à l'heure en sens anti-horaire et une correction rapide de la date, sans aucune restriction de plage de temps, c'est-à-dire sans des « heures interdites de correction manuelle », et sans risque d'endommagement du dispositif, ainsi qu'une trajectoire optimisée des pièces mobiles lors du fonctionnement du dispositif. Ces objectifs devraient être achevés en garantissant une construction relativement peu encombrante et modulaire qui devrait se prêter également pour des mouvements extra-plats ainsi qu'un fonctionnement fiable du dispositif.The object of the present invention is therefore to remedy the aforementioned drawbacks of the known devices and to make available an instantaneous date control device for the watchmakers' date displays which also makes it possible to minimize the torque gain on the watch movement. of the corresponding timepiece, effective protection of the date disc against a double jump, a possibility of manual correction of the hours and / or the date using the crown of the corresponding timepiece, in particular a setting the time anti-clockwise and rapid correction of the date, without any time range restriction, that is to say without "prohibited manual correction hours", and without risk of damage to the device, as well as an optimized trajectory of moving parts during operation of the device. These objectives should be achieved by ensuring a relatively space-saving and modular construction which should also lend itself to extra-flat movements as well as reliable operation of the device.
A cet effet, la présente invention propose un dispositif de commande instantanée de quantième pour un affichage de quantième horloger du type susmentionné, notamment pour pièce d'horlogerie mécanique, qui se distingue par les caractéristiques énoncées à la revendication 1, ainsi qu'un mouvement horloger, respectivement une pièce d'horlogerie correspondante comportant un tel dispositif. En particulier, dans un dispositif de commande instantanée de quantième selon la présente invention, le mobile de bascule comprend encore un axe de pivotement placé de manière excentrique sur ladite deuxième roue dentée et ladite bascule de déclenchement et d'entraînement est entièrement montée de manière pivotante autour dudit axe de pivotement sur ladite deuxième roue dentée, de sorte à ce que ladite deuxième roue dentée permette de déplacer par rotation ledit axe de pivotement de la bascule de déclenchement et d'entraînement de façon à placer le doigt d'entraînement de la bascule de déclenchement et d'entraînement derrière une dent du disque de quantième juste avant chaque saut instantané ainsi qu'à le placer en périphérie extérieure de la trajectoire des dents du disque de quantième après chaque saut instantané.To this end, the present invention provides an instantaneous date control device for a watchmaker date display of the aforementioned type, in particular for a mechanical timepiece, which is distinguished by the characteristics set out in
Ainsi, le dispositif de quantième instantané selon la présente invention est conçu de façon à permettre un changement instantané de l'indication de date tout en garantissant une faible prise de couple sur le mouvement horloger, du fait de la répartition de la prise de couple sur une durée maximale de la journée ainsi que de la libération instantanée de l'énergie accumulée. De plus, le remplacement du guidage de coulissement selon le brevet
Dans une forme d'exécution préférée du dispositif selon la présente invention, le doigt d'entraînement est agencé de manière rétractable par rapport à la bascule de déclenchement et d'entraînement afin de permettre la correction de la date par un moyen de correction rapide de date de la pièce d'horlogerie correspondante. Dans des formes d'exécution particulièrement préférées du dispositif, le doigt d'entraînement est formé soit par une pièce séparée montée de manière pivotante sur la bascule de déclenchement et d'entraînement soit par une pièce flexible montée sur ou formée d'une pièce avec la bascule de déclenchement et d'entraînement.In a preferred embodiment of the device according to the present invention, the drive finger is arranged retractably with respect to the trigger and drive lever in order to allow the correction of the date by a rapid correction means of date of the corresponding timepiece. In particularly preferred embodiments of the device, the drive finger is formed either by a separate piece pivotally mounted on the trigger and drive rocker or by a flexible piece mounted on or formed in one piece with the trigger and drive rocker.
Dans une autre forme d'exécution préférée du dispositif selon la présente invention, la bascule de déclenchement et d'entraînement comprend un ressort de précontrainte exerçant une force sur le doigt d'entraînement le précontraignant dans sa position normale de fonctionnement en direction des dents situées sur le disque de quantième.In another preferred embodiment of the device according to the present invention, the trigger and drive lever comprises a preload spring exerting a force on the drive finger preloading it in its normal operating position towards the teeth located on the date disc.
Par ces mesures, on obtient une protection efficace du disque de quantième contre un double saut ainsi que la possibilité d'une correction manuelle des heures et/ou du quantième à l'aide de la couronne ou d'un poussoir de correction de la pièce d'horlogerie correspondante, en particulier une mise à l'heure en sens anti-horaire et une correction rapide de la date, sans aucune restriction de plage de temps et sans risque d'endommagement, ce qui conduit à un fonctionnement particulièrement sûr et fiable de ce genre de dispositif. Par ailleurs, le remplacement du guidage de coulissement selon le brevet
Dans d'autres formes d'exécution préférées du dispositif selon la présente invention, le premier mobile et/ou le deuxième mobile du dispositif peuvent être l'objet d'agencements alternatifs, plus spécifiquement en utilisant un moyen de débrayage unidirectionnel agencé, soit sur la première roue dentée, soit entre la première roue dentée et la came. Cela offre une solution particulièrement avantageuse aussi bien du point de vue du montage de la came sur la première roue dentée du premier mobile, que du mouvement relatif entre ces pièces.In other preferred embodiments of the device according to the present invention, the first mobile and / or the second mobile of the device can be the subject of alternative arrangements, more specifically by using a unidirectional declutching means arranged, either on the first gear, that is between the first gear and the cam. This offers a particularly solution advantageous both from the point of view of mounting the cam on the first toothed wheel of the first mobile, and of the relative movement between these parts.
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 characteristics, as well as the corresponding advantages, will emerge from the dependent claims as well as from the description setting out the invention below in more detail.
Les dessins annexés représentent schématiquement et à titre d'exemple plusieurs formes d'exécution de l'invention.
- La
figure 1a montre une vue en perspective schématique d'un dispositif de commande instantanée de quantième pour un affichage de quantième d'une pièce d'horlogerie selon la présente invention; lafigure 1b est une vue en plan de dessus du dispositif illustré à lafigure 1a ; lafigure 1c montre une coupe à travers le dispositif le long de la ligne I-I figurant dans lafigure 1b . - Les
figures 2a à 2c représentent, de façon schématique, une vue en perspective, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne II-II figurant dans lafigure 2b d'une première forme d'exécution du premier mobile d'un dispositif de commande instantanée de quantième selon la présente invention; lesfigures 2d à 2f représentent, de façon schématique, une vue en perspective, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne III-III figurant dans lafigure 2e d'une deuxième forme d'exécution du premier mobile d'un dispositif de commande instantanée selon la présente invention; lesfigures 2g à 2i représentent, de façon schématique, une vue en perspective, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne IV-IV figurant dans lafigure 2h d'une troisième forme d'exécution du premier mobile d'un dispositif de commande instantanée selon la présente invention; lesfigures 2j à 2l représentent, de façon schématique, une vue en perspective, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne V-V figurant dans lafigure 2k d'une quatrième forme d'exécution du premier mobile d'un dispositif de commande instantanée selon la présente invention, quelques parties étant illustrées dans ces figures en transparence. - Les
figures 3a à 3c représentent une vue en perspective schématique, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne VI-VI figurant dans lafigure 3b d'une première forme d'exécution du deuxième mobile d'un dispositif de commande instantanée de quantième selon la présente invention, quelques parties étant illustrées dans ces figures en transparence pour une meilleure compréhension; lesfigures 3d à 3f représentent une vue en perspective schématique, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne VII-VII figurant dans lafigure 3e d'une deuxième forme d'exécution du deuxième mobile d'un dispositif de commande instantanée selon la présente invention, quelques parties étant de même illustrées dans ces figures en transparence pour une meilleure compréhension; lesfigures 3g à 3i représentent une vue en perspective schématique, une vue en plan de dessus, et une coupe à travers le dispositif le long de la ligne VIII-VIII figurant dans lafigure 3h d'une troisième forme d'exécution du deuxième mobile d'un dispositif de commande instantanée selon la présente invention, quelques parties étant de même illustrées dans ces figures en transparence pour une meilleure compréhension; lesfigures 3j et 3k montrent une vue en perspective schématique et une vue en plan de dessus de la bascule de déclenchement et d'entraînement de la troisième forme d'exécution du deuxième mobile d'un dispositif de commande instantanée selon la présente invention. - Les
figures 4a à 4g montrent de façon schématique et à titre d'exemple, par des vues de dessus similaires à lafigure 1b mais n'illustrant que partiellement le disque de quantième, sept étapes lors du fonctionnement d'un dispositif de commande instantanée selon la présente invention, à savoir différentes positions lorsque le ressort de déclenchement et d'entraînement du dispositif est chargé et la position juste avant le changement instantané du disque de quantième.
- The
figure 1a shows a schematic perspective view of an instantaneous date control device for a date display of a timepiece according to the present invention; thefigure 1b is a top plan view of the device illustrated infigure 1a ; thefigure 1c shows a section through the device along line II in thefigure 1b . - The
Figures 2a to 2c schematically represent a perspective view, a plan view from above, and a section through the device along the line II-II shown in thefigure 2b of a first embodiment of the first mobile of an instantaneous date control device according to the present invention; thefigures 2d to 2f schematically represent a perspective view, a plan view from above, and a section through the device along the line III-III in thefigure 2e of a second embodiment of the first mobile of an instantaneous control device according to the present invention; thefigures 2g to 2i schematically represent a perspective view, a plan view from above, and a section through the device along the line IV-IV shown in thefigure 2h of a third form execution of the first mobile of an instant command device according to the present invention; thefigures 2d to 2l schematically represent a perspective view, a plan view from above, and a section through the device along the line VV shown in thefigure 2k of a fourth embodiment of the first mobile of an instantaneous control device according to the present invention, some parts being illustrated in these figures in transparency. - The
Figures 3a to 3c show a schematic perspective view, a plan view from above, and a section through the device along the line VI-VI shown in thefigure 3b of a first embodiment of the second mobile of an instantaneous date control device according to the present invention, some parts being illustrated in these figures in transparency for better understanding; thefigures 3d to 3f show a schematic perspective view, a plan view from above, and a section through the device along the line VII-VII in thefigure 3e of a second embodiment of the second mobile of an instantaneous control device according to the present invention, some parts being likewise illustrated in these figures in transparency for better understanding; thefigures 3g to 3i show a schematic perspective view, a plan view from above, and a section through the device along the line VIII-VIII in thefigure 3h of a third embodiment of the second mobile of an instantaneous control device according to the present invention, some parts being likewise illustrated in these figures in transparency for better understanding; thefigures 3j and 3k show a schematic perspective view and a top plan view of the trigger and drive rocker of the third embodiment of the second mobile of an instantaneous control device according to the present invention. - The
figures 4a to 4g show schematically and by way of example, from top views similar to thefigure 1b but only partially illustrating the date disc, seven steps during the operation of an instantaneous control device according to the present invention, namely different positions when the trigger and drive spring of the device is loaded and the position just before the instantaneous change of the date disc.
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.
Un dispositif de commande instantanée de quantième selon la présente invention est destiné à être intégré dans une pièce d'horlogerie équipée d'un affichage de quantième, notamment dans une montre bracelet dotée d'un mouvement horloger mécanique. Le dispositif peut également être utilisé dans une pièce d'horlogerie dotée d'un mouvement horloger d'un autre type, par exemple d'un mouvement quartz, de sorte que les explications suivantes s'appliquent indifféremment à tous ces cas.An instantaneous date control device according to the present invention is intended to be integrated in a timepiece equipped with a date display, in particular in a wristwatch provided with a mechanical watch movement. The device can also be used in a timepiece equipped with a watch movement of another type, for example a quartz movement, so that the following explanations apply equally to all these cases.
Tel que cela est illustré schématiquement et à titre d'exemple à la vue en perspective de la figure la, à la vue en plan de dessus de la
Afin de décrire plus en détail chacun de ces composants, on peut d'abord noter que, si bien que l'horloger parle typiquement de disque de quantième 1, ce dernier est typiquement réalisé par un anneau sur lequel sont inscrit les quantièmes de 1 à 31 et qui est muni sur sa périphérie intérieure d'une denture comportant un nombre adéquat de dents, normalement 31 dents. De préférence, ces dents sont, dans le dispositif de commande selon la présente invention, réalisées par des dents de scie plus ou moins asymétriques. Le train d'engrenage 2 qui forme la liaison cinématique entre le dispositif de commande instantanée et le mouvement horloger de base de la pièce d'horlogerie correspondante peut par exemple consister, tel que visible à titre d'exemple aux figures la et 1b, en un premier pignon intermédiaire 2.1 entraîné par une roue des heures, représentée aux
Le premier mobile 3, le mobile de came, comprend une première roue dentée 3.1 entraînée par ledit train d'engrenage 2 à la vitesse d'un tour par jour et une came 3.2 montée de manière libre en rotation, sur une plage angulaire limitée et/ou dans un sens de rotation unique, sur ladite première roue dentée 3.1 ainsi que temporairement couplée en rotation à ladite première roue dentée 3.1, de manière à ce que la came 3.2 est entraînée par la première roue dentée 3.1, du fait de sa liberté rotative dans une plage angulaire limitée et/ou dans un sens de rotation unique, de manière discontinue à la vitesse d'un tour par jour. Tel qu'indiqué également symboliquement par une flèche à la
Les jeux de
Dans la deuxième forme d'exécution du premier mobile, illustrée au jeu de
Dans la troisième forme d'exécution du premier mobile, illustrée au jeu de
Dans la quatrième forme d'exécution du premier mobile, illustrée au jeu de
Le deuxième mobile 4, le mobile de bascule, comprend une deuxième roue dentée 4.1 entraînée par l'intermédiaire de ladite première roue dentée 3.1 à la vitesse d'un tour par jour. Le sens de rotation de la deuxième roue dentée 4.1 du deuxième mobile 4 est, tel qu'indiqué symboliquement par une flèche à la
La bascule de déclenchement et d'entraînement 4.3 porte un palpeur 4.4 s'appuyant sur ladite came 3.2 montée sur la première roue dentée 3.1 du premier mobile 3 et servant de doigt de déclenchement ainsi qu'à donner l'orientation angulaire de la bascule de déclenchement et d'entraînement 4.3 par rapport aux autres pièces du dispositif. Ladite bascule de déclenchement et d'entraînement 4.3 porte encore un doigt d'entraînement 4.5 qui peut venir en prise avec les dents 1.1 situées sur le disque de quantième 1 afin d'entraîner ce dernier pas par pas. De plus, ladite bascule de déclenchement et d'entraînement 4.3 porte un moyen d'accroché 4.7, par exemple une goupille, sur lequel s'appuie le ressort de déclenchement et d'entraînement 5.The trigger and drive lever 4.3 carries a probe 4.4 resting on said cam 3.2 mounted on the first toothed wheel 3.1 of the first mobile 3 and serving as trigger finger as well as giving the angular orientation of the lever. triggering and driving 4.3 with respect to the other parts of the device. Said trigger and drive lever 4.3 also carries a drive finger 4.5 which can come into engagement with the teeth 1.1 located on the
Le ressort de déclenchement et d'entraînement 5 est monté sur un pont ou le bâti de la pièce d'horlogerie correspondante, voire d'un module de quantième instantané, et exerce sur ledit moyen d'accroché 4.7 de la bascule de déclenchement et d'entraînement 4.3 une force de précontrainte apte à plaquer le palpeur 4.4 contre la came 3.2 du premier mobile 3. Le ressort de déclenchement et d'entraînement 5 stocke suffisamment d'énergie pour assurer un saut instantané du disque de quantième 1.The trigger and drive
Le moyen de maintien 6, indiqué que symboliquement à la
Le dispositif de commande instantanée selon la présente invention se distingue, en particulier, du fait que le mobile de bascule 4 comprend encore un axe de pivotement 4.2 placé de manière excentrique sur ladite deuxième roue dentée 4.1. Ladite bascule de déclenchement et d'entraînement 4.3 est entièrement montée de manière pivotante autour de cet axe de pivotement 4.2 sur ladite deuxième roue dentée 4.1, de sorte à ce que ladite deuxième roue dentée 4.1 permet de déplacer par rotation ledit axe de pivotement 4.2 de la bascule de déclenchement et d'entraînement 4.3 de façon à placer le doigt d'entraînement 4.5 de la bascule de déclenchement et d'entraînement 4.3 derrière une dent 1.1 du disque de quantième 1 juste avant chaque saut instantané ainsi qu'à le placer en périphérie extérieure de la trajectoire des dents 1.1 du disque de quantième 1 après chaque saut instantané. Simultanément, la coopération entre la première roue dentée 3.1, la came 3.2 montée sur ladite première roue dentée 3.1 et le palpeur 4.4 de la bascule de déclenchement et d'entraînement 4.3 permet de tendre le ressort de déclenchement et d'entraînement 5 lorsque la bascule de déclenchement et d'entraînement 4.3 est éloignée, respectivement son doigt d'entraînement 4.5 est placé en dehors de la trajectoire des dents 1.1 du disque de quantième 1 ainsi que de libérer de façon instantanée l'énergie accumulée par le ressort de déclenchement et d'entraînement 5 lorsque la bascule de déclenchement et d'entraînement 4.3 est rapprochée, respectivement son doigt d'entraînement 4.5 est momentanément placé derrière une dent 1.1 du disque de quantième 1 afin de provoquer une commutation de la position du disque de quantième 1 par un saut instantané.The instantaneous control device according to the present invention is distinguished, in particular, from the fact that the tilting mobile 4 also comprises a pivot axis 4.2 placed eccentrically on said second toothed wheel 4.1. Said trigger and drive lever 4.3 is entirely pivotally mounted around this pivot axis 4.2 on said second gear 4.1, so that said second gear 4.1 allows said pivot axis 4.2 to be rotated by the trigger and training lever 4.3 so as to place the drive finger 4.5 of the trigger and training lever 4.3 behind a tooth 1.1 of the
De préférence, ce doigt d'entraînement 4.5 est agencé de manière rétractable par rapport à la bascule de déclenchement et d'entraînement 4.3 afin de permettre la correction de la date par un moyen de correction rapide de date de la pièce d'horlogerie correspondante. À cet effet, le doigt d'entraînement 4.5 peut être formé par une pièce séparée montée de manière pivotante sur la bascule de déclenchement et d'entraînement 4.3, tel qu'illustré schématiquement et à titre d'exemple aux figures la et 1b, 3a et 3b ainsi que 3d et 3e. Alternativement, le doigt d'entraînement 4.5 peut être formé par une pièce flexible montée sur ou formée d'une pièce avec la bascule de déclenchement et d'entraînement 4.3, tel qu'illustré schématiquement et à titre d'exemple aux
Par ailleurs, tel qu'illustré également à titre d'exemple aux
Les
Les
Les composants décrits ci-dessus des diverses formes d'exécution d'un dispositif de commande instantanée de quantième selon la présente invention peuvent être fabriqués par des moyens traditionnels, tel que le fraisage, le découpage, l'étampage, le décolletage, et/ou des procédés électrochimiques, mais ils peuvent également être fabriqués à l'aide de matériaux et de procédés non-traditionnels comme le silicium, usiné par procédé Deep Reactive Ion Etching (DRIE), le nickel usiné par électroformage, par exemple en utilisant le procédé UV-Liga, ou par impression 3D.The components described above of the various embodiments of an instantaneous date control device according to the present invention can be manufactured by traditional means, such as milling, cutting, stamping, bar turning, and / or electrochemical processes, but they can also be manufactured using non-traditional materials and processes such as silicon, machined by the Deep Reactive Ion Etching (DRIE) process, the nickel machined by electroforming, for example using the UV-Liga process, or by 3D printing.
Au vue de la description détaillée figurant ci-dessus de la structure des composants des diverses formes d'exécution d'un dispositif de commande instantanée de quantième selon la présente invention, le fonctionnement du dispositif est aisément compréhensible à l'aide des
En effet, lors du fonctionnement normal d'une pièce d'horlogerie comprenant un tel dispositif de commande instantanée de quantième, la roue des heures du mouvement horloger de base de cette pièce d'horlogerie entraîne le train d'engrenage 2 qui à son tour fait tourner la première roue dentée 3.1 à la vitesse d'un tour par jour dans le sens anti-horaire. La came 3.2, montée sur la première roue dentée 3.1 et du fait de sa liberté rotative dans une plage angulaire limitée et/ou dans un sens de rotation unique, est alors entraînée, selon les explications figurant ci-dessus par rapport aux différentes formes d'exécution du premier mobile 3, de manière discontinue à la vitesse d'un tour par jour dans le sens anti-horaire. La bascule de déclenchement et d'entraînement 4.3, dont le palpeur 4.4 est appliqué contre la surface périphérique en colimaçon de la came 3.2, tend alors le ressort de déclenchement et d'entraînement 5. Simultanément, la première roue dentée 3.1 fait tourner la deuxième roue dentée 4.1 du deuxième mobile 4 à la vitesse d'un tour par jour dans le sens horaire, de sorte à déplacer par rotation ledit axe de pivotement 4.2 de la bascule de déclenchement et d'entraînement 4.3 et ainsi à placer le doigt d'entraînement 4.5 de la bascule de déclenchement et d'entraînement 4.3 derrière une dent du disque de quantième 1 juste avant chaque saut instantané et à le placer en périphérie extérieure de la trajectoire des dents du disque de quantième 1 après chaque saut instantané. Un saut instantané du disque de quantième 1 se produit lorsque le palpeur 4.4 de la bascule de déclenchement et d'entraînement 4.3 arrive sur le flanc raide, voire presque radial, de la came 3.2 et, à l'aide de l'énergie accumulée par le ressort de déclenchement et d'entraînement 5 suffisante pour assurer un saut instantané du disque de quantième 1, fait avancer la came 3.2 de manière instantanée dans le sens anti-horaire. La came 3.2 se trouve alors et reste temporairement dans une position angulaire avancée par rapport à la première roue dentée 3.1, ce qui est possible grâce à la rainure de guidage 3.1.1, 3.1.4.1 et/ou grâce au moyen de débrayage unidirectionnel agencé sur les deux pièces 3.1.3, 3.1.4 de la première roue dentée 3.1, respectivement entre la première roue dentée 3.1 et la came 3.2 du premier mobile 3. L'entraînement en continu par la roue des heures et le train d'engrenage 2 provoque ensuite l'avancement de la première roue dentée 3.1 jusqu'à ce que la came 3.2 soit de nouveau couplée temporairement en rotation avec cette première roue dentée 3.1, de manière à ce que le cycle recommence.In fact, during the normal operation of a timepiece comprising such an instantaneous date control device, the hour wheel of the basic timepiece movement of this timepiece drives the
Cette séquence de mouvement est illustrée schématiquement aux
Lorsque l'utilisateur d'une pièce d'horlogerie comprenant un tel dispositif de commande instantanée de quantième effectue une mise à l'heure par correction en arrière, c'est-à-dire qu'il tourne la couronne de correction de la pièce d'horlogerie correspondante se trouvant en position de mise à l'heure en sens arrière, la roue des heures, le train d'engrenage 2, la première roue dentée 3.1 ainsi que la deuxième roue dentée 4.1 sont entraînés dans le sens de rotation opposé par rapport à ce qui est indiqué symboliquement par des flèches à la
Enfin, lorsque l'utilisateur d'une pièce d'horlogerie comprenant un tel dispositif de commande instantanée effectue une correction rapide de la date, c'est-à-dire qu'il tourne la couronne de correction de la pièce d'horlogerie correspondante se trouvant en position de correction rapide de quantième en sens normal, un rouage de correction non indiqué aux figures agit directement sur le disque de quantième 1 et produit sa rotation en sens horaire. Cela n'a pourtant aucune influence sur le dispositif de commande instantanée selon la présente invention, car, d'une part, le doigt d'entraînement 4.5 de la bascule de déclenchement et d'entraînement 4.3 est enlevé dans ce dispositif de commande bien plus tôt chaque journée, à savoir typiquement entre 4 heures et 7 heures du matin, de la trajectoire des dents 1.1 du disque de quantième 1 que dans des mécanismes de quantième instantané de l'art antérieur dans lesquels cela ne peut se produire chaque jour seulement l'après-midi ou le soir. D'autre part, au cas où une correction rapide de la date est effectuée lorsque le doigt d'entraînement 4.5 de la bascule de déclenchement et d'entraînement 4.3 se trouve encore dans la trajectoire des dents 1.1 du disque de quantième 1, cela ne produit aucune influence non plus du fait que le doigt d'entraînement 4.5 est agencé de manière rétractable par rapport à la bascule de déclenchement et d'entraînement 4.3 et peut alors, le cas échéant, se rétracter pour faire passer les dents 1.1 du disque de quantième 1 lors d'une correction rapide de la date. Le ressort de précontrainte 4.6 sur la bascule de déclenchement et d'entraînement 4.3 a donc même une troisième fonction, à savoir de permettre la correction rapide de la date à tout moment sans aucun endommagement du dispositif. De plus, la séparation de la force de déclenchement et d'entraînement exercée par le ressort de déclenchement et d'entraînement 5 placé sur un bâti ou un pont de la pièce d'horlogerie, voire d'un module de commande instantanée, et de la force de précontrainte exercée par le ressort de précontrainte 4.6 agencé sur la bascule de déclenchement et d'entraînement 4.3 permet d'améliorer le confort d'utilisation, car ces forces n'ont typiquement pas le même seuil et l'utilisateur ne ressent, dans un dispositif de commande selon la présente invention, qu'une force de rappel bien moindre que dans des mécanismes de l'art antérieur lorsqu'il veut effectuer une correction rapide de la date.Finally, when the user of a timepiece comprising such an instantaneous control device performs a rapid correction of the date, that is to say that he rotates the correction crown of the corresponding timepiece being in the position for rapid date correction in the normal direction, a correction train not indicated in the figures acts directly on the
La présente invention concerne également un mouvement et une pièce d'horlogerie comprenant un tel dispositif de commande instantanée qui sont, sans qu'il soit nécessaire de les décrire en tout détail, à la portée de l'homme du métier disposant de l'instruction technique selon la présente description. De préférence, il s'agit d'une montre bracelet équipé d'un mouvement horloger mécaniqueThe present invention also relates to a movement and a timepiece comprising such an instantaneous control device which are, without it being necessary to describe them in any detail, within the reach of those skilled in the art having the instruction technique according to the present description. Preferably, it is a wristwatch equipped with a mechanical watch movement
Ayant à disposition la description détaillée figurant ci-dessus aussi bien de la structure que du fonctionnement de différentes formes d'exécution du dispositif de commande instantanée de quantième selon la présente invention, il est aussi clair pour l'homme du métier que ce dispositif présente de nombreux avantages par rapport à des mécanismes de quantième de l'art antérieur. D'une part, le dispositif de quantième instantané selon la présente invention permet un changement instantané de l'indication de date tout en garantissant une faible prise de couple sur le mouvement horloger, étant donné que la prise de couple est repartie sur une durée maximale de la journée ainsi que l'énergie accumulée est libérée instantanément. D'autre part, l'axe de pivotement placé de manière excentrique sur la deuxième roue dentée du dispositif selon la présente invention, tout en agençant la bascule de déclenchement et d'entraînement entièrement sur la deuxième roue dentée, permet une trajectoire optimisée des différentes parties du dispositif. De plus, le dispositif dispose d'une protection efficace du disque de quantième contre un double saut ainsi que de la possibilité d'une correction manuelle des heures et/ou du quantième à l'aide de la couronne de la pièce d'horlogerie correspondante, en particulier une mise à l'heure en sens anti-horaire et/ou une correction rapide de la date, sans aucune restriction de plage de temps et sans risque d'endommagement. Toutes ces propriétés conduisent à un fonctionnement particulièrement sûr et fiable du dispositif. Par ailleurs, le dispositif de quantième instantané selon la présente invention réalise, du fait de la séparation de la force de déclenchement et d'entraînement exercée par le ressort de déclenchement et d'entraînement placé sur le bâti ou un pont et de la force de précontrainte exercée par le ressort de précontrainte agencé sur la bascule de déclenchement et d'entraînement, un confort amélioré d'utilisation. Ces avantages sont obtenus tout en garantissant une construction relativement peu encombrante et modulaire, de sorte à ce qu'un dispositif de quantième instantané selon la présente invention se prête également pour des mouvements extra-plats. Finalement, le dispositif peut être décliné dans de nombreuses variantes et permet une utilisation flexible.
Claims (15)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP18178458.8A EP3584643B1 (en) | 2018-06-19 | 2018-06-19 | Instantaneous command device for date display of timepieces |
CN201910315336.XA CN110618597B (en) | 2018-06-19 | 2019-04-19 | Instantaneous date control device for date display of a timepiece |
US16/408,269 US11429066B2 (en) | 2018-06-19 | 2019-05-09 | Instantaneous control device for a date display of a timepiece |
JP2019110289A JP7393135B2 (en) | 2018-06-19 | 2019-06-13 | Instantaneous control device for date display on watches |
Applications Claiming Priority (1)
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EP18178458.8A EP3584643B1 (en) | 2018-06-19 | 2018-06-19 | Instantaneous command device for date display of timepieces |
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EP3584643A1 true EP3584643A1 (en) | 2019-12-25 |
EP3584643B1 EP3584643B1 (en) | 2020-11-11 |
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EP18178458.8A Active EP3584643B1 (en) | 2018-06-19 | 2018-06-19 | Instantaneous command device for date display of timepieces |
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US (1) | US11429066B2 (en) |
EP (1) | EP3584643B1 (en) |
JP (1) | JP7393135B2 (en) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4194965A1 (en) * | 2021-12-08 | 2023-06-14 | Patek Philippe SA Genève | Driving mechanism for a timepiece |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP7349382B2 (en) | 2020-02-07 | 2023-09-22 | シチズン時計株式会社 | wheel and clock |
EP4109182A1 (en) * | 2021-06-23 | 2022-12-28 | ETA SA Manufacture Horlogère Suisse | Module for displaying additional time zone |
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CH708338A2 (en) * | 2013-07-04 | 2015-01-15 | Manuf La Joux Perret Sa | corrective mechanism step by step. |
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EP1953611B1 (en) * | 2007-01-30 | 2010-03-10 | Compagnie des Montres Longines, Francillon SA | Timepiece comprising a mechanism for driving a device displaying a time-related value |
ATE500537T1 (en) * | 2007-07-13 | 2011-03-15 | Omega Sa | INSTANT DISPLAY MECHANISM FOR CLOCK |
JP5382720B2 (en) * | 2009-12-24 | 2014-01-08 | セイコーインスツル株式会社 | A watch with a calendar mechanism including the 1st day wheel and the 2nd day wheel |
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EP2428855B1 (en) * | 2010-09-08 | 2019-07-03 | Rolex S.A. | Clock piece fitted with a device for displaying predetermined time periods |
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2018
- 2018-06-19 EP EP18178458.8A patent/EP3584643B1/en active Active
-
2019
- 2019-04-19 CN CN201910315336.XA patent/CN110618597B/en active Active
- 2019-05-09 US US16/408,269 patent/US11429066B2/en active Active
- 2019-06-13 JP JP2019110289A patent/JP7393135B2/en active Active
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DE1673663A1 (en) | 1966-11-30 | 1971-07-29 | Seiko Instr & Electronics | Drive mechanism for the date and day indicator in a calendar watch |
CH708338A2 (en) * | 2013-07-04 | 2015-01-15 | Manuf La Joux Perret Sa | corrective mechanism step by step. |
DE102015011324B3 (en) | 2015-08-27 | 2016-09-22 | NOMOS Glashütte/SA Roland Schwertner KG | Instant switching date switching mechanism |
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EP4194965A1 (en) * | 2021-12-08 | 2023-06-14 | Patek Philippe SA Genève | Driving mechanism for a timepiece |
Also Published As
Publication number | Publication date |
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JP2019219391A (en) | 2019-12-26 |
US11429066B2 (en) | 2022-08-30 |
EP3584643B1 (en) | 2020-11-11 |
JP7393135B2 (en) | 2023-12-06 |
CN110618597A (en) | 2019-12-27 |
CN110618597B (en) | 2022-06-03 |
US20190384223A1 (en) | 2019-12-19 |
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