EP2689298A1 - Mecanisme d'entrainement instantane pour mouvement horloger - Google Patents
Mecanisme d'entrainement instantane pour mouvement horlogerInfo
- Publication number
- EP2689298A1 EP2689298A1 EP12717214.6A EP12717214A EP2689298A1 EP 2689298 A1 EP2689298 A1 EP 2689298A1 EP 12717214 A EP12717214 A EP 12717214A EP 2689298 A1 EP2689298 A1 EP 2689298A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- cam
- mobile
- rotation
- counter
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 73
- 230000009471 action Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000012937 correction Methods 0.000 description 21
- 239000000523 sample Substances 0.000 description 12
- 210000000078 claw Anatomy 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 1
- 239000005557 antagonist Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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
- G04B1/00—Driving 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
- G04B19/25—Devices for setting the date indicators manually
-
- 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
- G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values
Definitions
- the present invention relates to an instant drive mechanism for a watch movement
- a mobile and a lever intended to be pivotally mounted on at least one frame member of the watch movement.
- the lever is arranged to cooperate, on the one hand, with the mobile to be moved and, on the other hand, with a counter of the watch movement, with the aim of incrementing it by means of instantaneous pulses.
- the mobile comprises a first wheel, intended to be driven from a drive member of the watch movement and arranged to drive in rotation a first cam of the mobile, coaxial with the first wheel and, having a periphery of variable radius.
- the latter is arranged to cooperate with a spout carried by a first arm of the lever and away from the center of the mobile when the latter rotates in a first direction of rotation, before letting it fall, under the effect of the action elastic means, when the spout moves from a point of the periphery corresponding to the largest radius to a point of the periphery corresponding to the smallest radius.
- this mechanism comprises, for each of these two time units to be displayed, a mobile comprising a drive wheel and a cam coaxial with this wheel and having a periphery of variable radius, more precisely in teeth of saw.
- the cam is integral in rotation with the drive wheel, the latter being driven from a finishing train.
- a pivoting lever is arranged to cooperate on the one hand with the cam, via a spout, and, on the other hand, with a counter of the corresponding unit of time, via a rocker carrying a ratchet and with which it meshes.
- Elastic means are provided for applying the spout permanently against the periphery of the cam, thus the lever pivots while the spout follows the rising profile of a sawtooth of the cam, before falling when the spout is found next to the radial face of this same tooth.
- the falling of the nose, and therefore the return of the lever in its position closest to the cam, causes an instantaneous incrementation of the counter of the corresponding unit of time.
- this document provides a device for correcting the current time arranged so as to prevent any rotation of the cam in the wrong direction of rotation. More precisely, this correction device makes it possible to modify the current time without involving the levers.
- EP 1918792 B1 discloses a correction mechanism associated with a similar drive mechanism and, to correct the value of a time indication both forward and backward.
- this correction mechanism comprises a return lever, arranged near the lever cooperating with the cam to control the display of the time indication, in the same plane, to lift the lever by through a return and place its spout out of range of the periphery of the cam, when a correction back is operated.
- a main object of the present invention is to propose an alternative to known watch movements having a mechanism for controlling an instantaneous jumping display, by proposing such a mechanism in which both the cam with which the lever cooperates can be driven in both directions of rotation, to prevent damage during manual corrections, and having a limited footprint in the plane of the corresponding watch movement.
- the present invention relates more particularly to an instantaneous drive mechanism of the type mentioned above, characterized in that the mobile comprises a safety member, coaxial with the drive wheel and arranged to cooperate. with the lever to move the first arm from the center of the mobile when the latter rotates in the second direction of rotation and allow the nozzle to pass from the point corresponding to the smallest radius to the point corresponding to the largest radius.
- the drive mechanism according to the invention makes it possible to make rapid corrections of the information to be displayed or other information related thereto, in particular by allowing rotation in both directions.
- the cam controlling the pulses transmitted by the lever to the first counter is a feature that influences the rotation of the lever to the first counter.
- the safety member has a kinematic connection with the first cam as they are angularly movable relative to each other between first and second relative angular positions.
- a first of these relative angular positions is associated with the first direction of rotation while the spout cooperates with the cam to define the position of the lever.
- At least one other position is associated with the second direction of rotation while the safety member cooperates with the lever to define the position of the latter.
- the safety member may comprise a board, coaxial with the first cam and, having a slope at its periphery, inclined relative to the radial direction and extending between points respectively corresponding to the smallest radius and the largest radius of the board.
- the board and the first cam are advantageously made integral with each other in rotation by means of an elastic member arranged to allow their relative angular mobility between the first and second positions.
- the mobile has a pin integral with one of the first cam and the safety member, and a portion of which is arranged in a slot, of predefined length, formed in the other elements to define the two relative angular positions.
- the mobile may further comprise an elastic member having a base integral in rotation with that of the elements comprising the slot and a finger arranged to cooperate with the pin to tend to position the first cam and the safety member in the direction of the first position relative angular.
- the cam and the safety member are controlled relative to each other, depending on the direction of rotation of the mobile, such that the one of these two elements capable of spreading the lever acts on the latter if necessary.
- the lever comprises a first retractable finger arranged to act at least indirectly on the first counter and transmit the pulses thereto, the lever further comprising a retraction device controlled by the mobile and arranged to act on the first retractable finger and, on the one hand, to move it so that it is located out of reach of the first counter during the phase during which the first arm of the lever is remote from the center of the mobile and, on the other hand, to release it before the fall of the lever so that it can transmit a pulse to the first counter.
- the retraction device may comprise a feeler pivotally mounted on the lever and arranged to cooperate, on the one hand, with the periphery of the board of the safety member, the latter having a radius growing from the lowest radius point to the point of greatest radius, and, secondly, at least indirectly with the retractable finger.
- the finger actuating the counter does not come into contact with the latter during the phase during which it is positioned upstream with respect thereto, thus preserving the smooth running of the watch movement. corresponding.
- the retractable finger can be integral with a guide member arranged to cooperate with a fixed pin, in particular housed in a frame member of the corresponding clock movement.
- the cooperation of the guiding member with the pin has a predefined path as a function of the movements of the lever.
- the latter further comprises an elastic member arranged to define a position at rest of the guide member with reference to the lever and exerting on it a force contributing to define the predefined path.
- the mechanism according to the invention may advantageously be implemented to increment, instantaneously, a second counter of the watch movement.
- the lever comprises a second arm arranged to cooperate with the second counter of the watch movement, in order to increment it by means of instantaneous pulses substantially simultaneous with those acting on the first counter.
- the lever may comprise a second retractable finger arranged to act at least indirectly on the second counter and transmit the pulses thereto, the retraction device being arranged to act also on the second finger and, on the one hand , moving it such that it is located out of range of the second counter during the phase during which the first arm of the lever is away from the center of the mobile and, secondly, release it before the fall of the lever in such a way that it can transmit a pulse to the second counter.
- the retraction device may also comprise a pivotally mounted rocker on the lever and, having first and second ends arranged to cooperate respectively with the first and second second retractable fingers.
- first and second ends arranged to cooperate respectively with the first and second second retractable fingers.
- Figure 1 shows a simplified front view of an instant drive mechanism for a watch movement according to a first preferred embodiment of the present invention
- Figure 2 shows an exploded perspective view of a first member of the mechanism of Figure 1;
- Figure 3a shows a perspective view of a first face of a second member of the mechanism of Figure 1;
- Figure 3b shows a perspective view of the second face of the second member of Figure 3a
- Figures 4a, 4b, 4c and 4d show the kinematic operation of the mechanism of Figure 1, in a first direction of rotation, in the same simplified front view;
- FIGS. 5a, 5b, 5c, 5d and 5e show the operating kinematics of the mechanism of FIG. 1, in a second direction of rotation, in the same simplified front view;
- Figure 6 shows a simplified front view of the instant drive mechanism of Figure 1, in a first specific operating mode
- FIG. 7 shows a simplified front view of the drive mechanism of Figure 1, in a second specific mode of operation;
- FIG. 8 shows an exploded perspective view of a member equivalent to that of Figure 2 according to a second embodiment of the present invention;
- Figure 9a shows a perspective view of a first face of a member equivalent to that of Figures 3a and 3b according to the second embodiment of the present invention
- FIG. 9b represents a perspective view of the second face of the member of FIG. 9a;
- FIGS. 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h and 10i represent the operating kinematics of the mechanism according to the second preferred embodiment, in a first direction of rotation, in the same view of FIG. simplified face, and
- Figure 1 1 shows a front view of a construction detail according to an alternative embodiment of the present invention.
- FIG. 1 represents a simplified front view of an instantaneous drive mechanism for a watch movement according to a first preferred embodiment of the present invention. More precisely, the mechanism represented is intended to control the display of the date, in the form of a big date, as well as the day of the week.
- the mechanism comprises a finishing gear, connecting a time base to a conventional motor (not shown) and driving a wheel 1 hours in rotation, due to a complete turn every 12 hours, as a non-restrictive indicative.
- the hour wheel 1 is kinematically connected to a mobile 2 of the drive mechanism according to the invention via a set of references 3, arranged in engagement with a first gear 4 of the mobile 2, of so that it performs a complete turn on itself in 24 hours.
- the mobile 2 cooperates with a lever 6, in a manner to be described in detail later, to increment, instantly and substantially simultaneously, the date and weekday meters every 24 hours.
- the lever 6 comprises a first arm 7 for incrementing a first counter days of the week 8 by transmitting pulses to a pinion 9, seven teeth, secured to a display disk 10 days of the week .
- the lever 6 further comprises a second arm 12 for incrementing a second date counter 13 by transmitting pulses to a two-stage control wheel 14 for controlling the movements of two pinions 15 and 16, respectively integral. of units and dozens of date disks, to achieve a conventional large date type display.
- Jumper springs 18, 19, 20 and 21 are provided, in known manner, to ensure good angular positioning of the discs and the control wheel.
- a spring 22 is formed integrally with the lever 6 to ensure good cooperation with the mobile 2.
- This spring 22 is disposed in abutment against a cam 24, held on a frame member of the watch movement at by means of a screw 25.
- the periphery of the cam 24 has a succession of segments more or less distant from the center of the cam. The prestressing of the spring 22 can thus be adjusted according to the segment against which it is placed in support.
- Figure 2 shows an exploded perspective view of the mobile 2 according to a first preferred embodiment of the present invention.
- the first toothed wheel 4 is secured to a barrel 27 on which are engaged a cam 28, an elastic member 29 and a retaining board 30.
- the hollow central axis of the barrel is intended to be engaged on a post carried by a frame member of the watch movement to mount the pivotal mobile.
- the barrel 27 has a flat 32 with which cooperate openings 33, 34 of complementary shape formed in the elastic member 29 and the retaining plate 30. By this cooperation, the barrel 27, the elastic member 29 and the retaining board 30 are integral in rotation. In addition, the barrel 27 has a shoulder 36 defining a radial guide surface for the cam 28, mounted on the barrel being free to rotate relative to the latter.
- the barrel 27 also carries a safety member 38 whose operation will be explained later.
- the safety member is secured to the barrel, and therefore the toothed wheel 4, in rotation.
- the safety member comprises a board whose periphery has a variable radius, more precisely here, whose radius increases substantially continuously between a smallest radius and a largest radius.
- An inclined slope 39 relative to the radial direction defines the junction between the points of the smallest radius and the largest.
- the safety member further comprises a slot 40 extending substantially in a circular path.
- the cam 28 is positioned on the barrel 27 being adjacent to the safety member 38. It also has a periphery of variable radius, more precisely here, having its radius which increases substantially continuously between a radius most weak and a radius largest.
- the junction 42 between the points of largest radius and the smallest radius has a curvature located between the region of the periphery corresponding to the largest radii and the center of the cam, so as to define a sudden interruption of the periphery after the point of greatest radius towards the point of the weakest radius.
- cam 28 carries a pin 44 for cooperating with the slot 40 of the safety member, as will be discussed further in detail.
- the elastic member 29 comprises a base 45 to ensure its holding on the barrel 27 and from which extend a peripheral ring 46 and an elastic arm 47, of generally circular shape.
- the latter has two fingers in the form of claws 48, 49 oriented facing each other, at its free end intended to cooperate with the pin 44 carried by the cam 28, to tend to move in one direction or in the other inside the slot 40.
- the pin 44 is free to position between the two claws 48 and 49.
- the retaining board 30 has the general shape of a ring and comprises two windows 51, 52 whose presence is purely illustrative, their function being to allow the visualization of a detail of the mechanism according to the invention in progress. operation.
- the main function of the retaining board is to ensure that the elastic arm 47 does not deform outside its worktop.
- Figures 3a and 3b show perspective views of the first and second faces of the lever 6 for cooperating with the mobile 2 which has just been described.
- the lever 6 comprises a bore 60 intended to allow its attachment to pivot on a frame member of the watch movement.
- the first arm 7 comprises, near its free end, a first spout 61 intended to cooperate with the periphery of the cam 28, followed by a second spout 62 defining a first abutment surface for a first retractable finger 63 , pivotally mounted on the first arm 7 and arranged to transmit pulses to the pinion 9 of the day of the week counter 8.
- a second stop surface 64 is provided to define a range of movement of the first retractable finger.
- a spring 65 here formed in one piece with the lever 6 is provided for applying a force on the first retractable finger, via an extension 66, tending to hold it against the second abutment surface 64.
- the first arm 7 also carries a probe 68 for cooperating with the periphery of the safety member 38 and pivotally mounted on the first arm.
- the lever 6 carries a latch 70 mounted in rotation on the lever, with an axis of rotation coaxial with the bore 60 and having first and second arms 71, 72 respectively superimposed on the first and second arms of the lever 7 , 12.
- the free end of the first arm 71 of the rocker is arranged near the sensor 68 and has a folded portion 69 arranged in abutment against the back of the probe 68, so that the latter causes a pivoting of the rocker, simultaneously with a pivoting of the first retractable finger 63 when it pivots.
- the folded portion is arranged in such a way that it can exert on the extension 66 a force that is antagonistic to that of the spring 65, to separate the first retractable finger from the second abutment surface 64.
- the free end of the second arm 72 of the rocker cooperates with a second retractable finger 74 to pivot substantially simultaneously to the first retractable finger 63.
- First and second abutment surfaces 75, 76 are formed in the second arm 12 to limit the stroke of the second retractable finger 74 in both directions of rotation.
- an additional abutment surface 77 is provided on the first arm 7 of the lever to limit the stroke of the probe 68.
- FIGS. 4a to 4d show the operating kinematics of the instantaneous driving mechanism according to the first embodiment of the present invention, in a first direction of rotation, in the same simplified front view, similar to that of the Figure 1. More specifically, the first direction of rotation is here the normal operating direction of the mechanism, that is to say, especially when it is driven by the gear train. In such an operating mode, the hours wheel 1 rotates in the clockwise rotation direction in FIGS. 4a to 4d, which corresponds to a rotation of the mobile 2 in the anticlockwise rotation direction.
- the spout 61 follows, for nearly 24 hours, the periphery of the cam 28 to the position shown in Figure 4a, which corresponds to one hour just after midnight, the next day.
- the wheel 4 being driven in the direction of rotation anti-clockwise, it drives the cam 28 in the same direction by cooperation of its slot 40 with the pin 44 carried by the cam 28.
- the radius of the periphery of the cam 28 increasing gradually, the lever slowly pivots in the clockwise direction at the same time, so that its first arm 7 moves progressively away from the center of the cam 28.
- the feeler 68 follows the periphery of the safety member 38 whose radius, starting from its substantially lower value, progressively increases to its largest value, as illustrated on FIG. Figure 4a.
- the relative forces of the springs 22 and 65 are advantageously chosen in such a way that the action of the spring 22 predominates over that of the spring 65.
- FIG. 4d illustrates the configuration of the instantaneous drive mechanism according to the present invention immediately after midnight, ie immediately after the fall of the lever 6 at the junction 42 of the periphery of the cam 28. At this instant, each date counters and days of the week have been incremented.
- the time setting operation can potentially give rise to damage, if no safety measure is taken, when the hour wheel 1 is driven in the anti-clockwise direction of the rotation. makes respective shapes of the spout 61 and the cam 28.
- Figures 5a to 5e illustrate the operation of the safety member 38 in relation to the lever 6 to prevent damage to the instantaneous drive mechanism in such a case.
- toothed wheel 4 can continue its travel by moving the pin 44 inside the slot 40 formed in the safety member 38, which is visible in Figure 5a, the cam 28 remaining stationary .
- the probe 68 comes into contact with the slope 39 of the safety member, in a locked position against its abutment surface 77.
- the rotation of the safety member 38 thus causes a sliding of the feeler 68 along the slope 39, causing a lifting of the first arm 7 of the lever 6 relative to the mobile 2.
- the tip of the spout 61 crosses the edge defined between the junction 42 and the largest radius point of the periphery of the cam 28 to achieve the configuration shown in Figure 5b.
- the probe 68 continues its course along the slope 39, it further moves the first arm 7 of the center of the cam 28 and the spout 61 to cross the aforementioned edge to present the configuration shown in Figure 5c. It can be seen by comparing the configurations of FIGS. 5b and 5c that the cam has slightly rotated clockwise, under the effect of the action of the elastic arm 47 on the pin 44.
- the spout 61 is out of reach of the cam 28, particularly in order to provide a margin as evidenced by the configuration illustrated in Figure 5d.
- the direction of the force that it undergoes by its contact with the periphery of the safety member changes orientation and causes its pivoting, such as that appears in Figure 5e. This pivoting allows the first arm 7 of the lever 6 to approach the cam 28 and to replace the spout 61 abutting against the periphery of the latter.
- the display of the current time has changed from a position indicating a time located shortly after midnight to an hour located a few hours before midnight.
- the user can start turning the hour wheel in the normal direction, that is to say the direction of rotation time, to return the display of the current time to a time after midnight.
- the first gearwheel 4 is rotated in the anticlockwise rotation direction.
- the cam 28 remains substantially stationary, until the slot 40 comes to reposition itself in abutment against the pin 44.
- the feeler 68 returns to position itself facing the slope 39 and pivots to again in the anti-clockwise rotation direction in FIG. 5e, so as to replace the retractable fingers 63 and 74 within reach of the associated teeth (in a configuration similar to that of FIG. 4b, apart from the relative positioning of the slot 40 and pin 44).
- the position of the lever 6 relative to the cam 28 is defined by the interaction between the spout 61 and the periphery of the cam .
- the drive mechanism behaves similarly when the hour wheel 1 is driven manually in the clockwise direction.
- the cam and the nose may be in abutment with each other leading to cam locking and, in this case, the interaction between the feeler 68 and the slope 39 of the safety member 38 allows the spout 61 to overcome the junction 42, to move from the point of the smallest radius of the periphery of the cam 28 to its largest radius point, without cause damage to the mechanism.
- the operation of the mechanism according to the present invention facilitates the introduction of needles for a watchmaker responsible for assembling a corresponding timepiece.
- the setting of the current hour and minute hands is generally performed when the hour wheel and the roadway are arranged in their corresponding position at midnight, this position being detectable by the jump of the date counter.
- the watchmaker can roughly search the midnight position by identifying the leap of the lever 6 and set up the needles without completely chasing them, at first. He can then go back by manually correcting the current time and then changing direction to train the mechanism in the normal direction, more slowly, to more accurately detect the midnight position and completely chase the needles.
- Figures 6 and 7 show, in similar and simplified front views, the operation of a fast correction mechanism of the date and the day of the week which can advantageously be implemented in addition to the drive mechanism which has just been described.
- This fast correction mechanism comprises a correction flip-flop 80 pivotally mounted on a frame element of the watch movement, between at least one first neutral position (that illustrated in particular in FIG. 4a), a second date correction position ( Figure 6) and a third correction position of the day of the week (Figure 7).
- the rapid correction mechanism also comprises a control mobile 81 arranged to define the position of the latch at a given instant, in relation with the action of a spring 82 acting on the latch 80.
- the control wheel 81 comprises first and second toothed wheels, integral in rotation and only one of which is visible in the figures, namely the first drive wheel 84.
- the second wheel, control has a similar toothing to that of the first wheel with the difference that its pitch is three times that of the first wheel, that is to say that it has only one tooth out of three.
- the two wheels can be formed in one piece, that is to say in the form of a single wheel whose two teeth in three are truncated in the direction of the thickness of the wheel.
- the first wheel 84 is arranged to be rotated from rotational movements applied to a time setting rod in a conventional manner.
- the kinematic connection between the time-setting rod and the drive wheel 84 is conventional, of the type comprising in particular a sliding pinion, and will not be described in more detail to the extent that the person skilled in the art will not encounter of particular difficulty to implement it according to its needs.
- the control wheel is arranged to cooperate with a first nozzle 86 of the latch 80 for the purpose of controlling the pivoting.
- the latter also comprises second and third nozzles 88, 89 arranged to transmit pulses, respectively, to the date counters and days of the week.
- the tooth that allowed the pivoting of the rocker passes beyond the first tip of the latter and releases it. Because the two following teeth of the control wheel are truncated, the first nose then has sufficient space to allow an immediate return of the latch in its rest position, under the effect of the action of the spring 82 .
- the tooth that allowed the pivoting of the rocker passes beyond the first tip of the latter and releases it. Because the two following teeth of the control wheel are truncated, the first nose then has sufficient space to allow an immediate return of the latch in its rest position, under the effect of the action of the spring 82 .
- the drive mechanism according to the present invention offers the possibility of adjusting the date at any time without risk of causing damage to the drive mechanism according to the invention, unlike many of timepieces known in which a date adjustment between 21 pm and 3 am is to be avoided because it can create damage to the watch movement.
- Figure 8 shows an exploded perspective view of a mobile 102, equivalent to the mobile 2 illustrated in Figure 2, according to a second embodiment of the present invention.
- the mobile 102 comprises a first gear 104 secured to a barrel 127 on which are engaged a cam 128 and a resilient member 129 similar to those of the first embodiment.
- the hollow central axis of the barrel is intended to be engaged on a tenon carried by a frame member of the watch movement to mount the pivotal mobile.
- the barrel 127 has a flat portion 132 with which cooperates an opening 133, of complementary shape, formed in the base 145 of the elastic member 129, and a shoulder 136 defining a radial guide surface for the cam 128, mounted on the barrel being free to turn relative to the latter.
- the barrel 127 also carries a safety member 138 whose operation is similar to that of the safety member 38 described in connection with the first embodiment.
- the safety member 138 comprises a board whose periphery has a variable radius. More specifically here, the safety member 138 comprises a first portion 201 having a first constant radius and extending over a little more than half a turn, and a second portion
- the safety member further comprises a slot 140 extending substantially in a circular path and intended to receive a pin 144 of the cam 128.
- the elastic member 129 comprises an elastic arm 147 carrying two fingers in the form of claws 148, 149 facing each other at its free end intended to cooperate with the pin 144.
- the pin 144 is free to position between the two claws 148 and 149.
- Figures 9a and 9b show perspective views of the first and second faces of a lever 106 for cooperating with the mobile 102 which has just been described.
- the lever 106 comprises a bore 160 intended to allow its attachment to pivot on a frame member of the watch movement and from which extend first and second arms 107 and 1 12, and a spring 122.
- the first arm 107 comprises, near its free end, a spout 161, assembled to the arm so as to have a slight play in pivoting, and a first retractable finger 163 pivotally mounted on the first arm 107 and arranged to transmit pulses to pinion 9 of the day of week counter 8.
- the first arm 107 also has a feeler 168 intended to cooperate with the periphery of the safety member 138.
- the lever 106 carries a rocker 170, rotatably mounted on the lever, with an axis of rotation coaxial with the bore 160 and, having first and second arms 171, 172 respectively superimposed on the first and second lever arm 107, 1 12.
- the free end of the first arm 17 1 delab as cule shaped substantially substantially ball joint cooperates with the first retractable finger 163.
- the free end of the second arm 172 of the rocker also substantially shaped in the form of a ball joint, cooperates with a second retractable finger 174, located on the free end of the second arm 172, to rotate substantially simultaneously to the first finger retractable 163.
- rocker 170 and the spout 161 have antagonist surfaces of substantially complementary shapes, such that the first nozzle provides a guide of the rocker and limits the amplitude of its movements.
- a spring 165 formed here in one piece with the lever 106, is provided to apply a force on the second retractable finger 174 to define a rest position. At the same time, the spring 165 defines the rest position of the first finger 163 via the second finger 174 and the rocker 170. It will be noted that, advantageously, a tab 204 is provided on the rocker 170 to define a guide of the spring 165.
- the second finger 1 74 is provided with an extension 206 having a first portion 208 bent followed by a third finger 210 defining a guide member, as will be exposed more far in relation to the following figures.
- the first portion 208 has a reduced thickness with reference to the second finger
- the third finger 210 has a greater thickness than that of the second finger.
- FIGS. 10a to 10i show the operating kinematics of the instantaneous driving mechanism according to the second embodiment of the present invention, in a first direction of rotation, in the same simplified front view, similar to that of the Figures 4a to 4d. More specifically, the first direction of rotation is here the normal operating direction of the mechanism, that is to say, especially when it is driven by the gear train. In such a mode of operation, the hour wheel 1 rotates in the clockwise direction in the figures
- the third finger 210 rests on the pin 212 by a first curved surface 214.
- This rotational movement of the second finger 174 causes a rotation of the latch 170 in the clockwise direction with reference to the lever 106, thereby causing a pivoting of the first finger 163 in the counterclockwise direction of rotation.
- the lever rotates and the first and second fingers 163 and 174 are retracted and can pass next to the teeth with which they are intended to cooperate without being within their reach.
- the third finger 210 passes the pin, as it appears in Figure 10d and can resume its rest position under the effect of the action of the spring 165.
- the first and second fingers 163 and 174 then pivot in the opposite direction to approach the teeth with which they are intended to cooperate.
- the cam 128 continues its rotation and always drives the lever 106, so the third finger 210 is again in abutment against the pin 212, this time by a second face 216 opposite to the first face 214.
- the board carrying the extension 206 and the second finger 174 then pivots in the direction of clockwise rotation, driving the first finger 163 in the same direction, via the lever 170.
- the thickness of the first portion 208 is chosen such that the pin 212 can cross the extension 206 by passing at its level, as shown in Figure 10h, while the lever 106 continues its fall.
- each of the fingers 163 and 174 transmits a pulse to the wheel that it controls, under the effect of the action of the fall of the lever 106, as shown in Figure 10i.
- the safety member 138 acts on the lever 106, via the feeler 168, to rotate in the clockwise direction of rotation.
- the third finger 210 reproduces the predefined path by its cooperation with the pin 212, as just described in connection with Figures 10a to 10d.
- the third finger 210 behaves as described above in relation to FIGS. 10e to 10i and each of the first and second fingers 163, 174 transmits a pulse to the corresponding wheel.
- FIG. 11 represents a front view of a construction detail according to an alternative embodiment of the present invention, more specifically of a lever 306, similar to the lever 106 of FIG. 9a, but whose end of the first arm 307, which interacts with the seven toothed pinion 9, has an additional extension 308 intended to increase the level of security of the device, in connection with the risk of double jumps of the display member days of the week .
- the extension 308 has substantially the shape of a spout arranged within the range of the toothing of the pinion 9, such that a wall 310 of the spout defines a stop for this toothing in the direction of clockwise rotation. .
- the extension 308 is positioned between two teeth of the pinion 9 to eliminate any risk of double jump.
- an instant drive mechanism comprising a mobile arranged to rotate in a predefined direction, in operating mode. normal operation, and to control the movements of a lever for the purpose of transmitting instantaneous pulses to at least one counter of a watch movement, the mechanism further comprising a security member coaxial with the mobile and arranged to allow a rotation of the mobile in the opposite direction without risk of damage, without departing from the scope of the present invention.
- the invention is also not limited to the implementation of a single set third finger - pin. Indeed, it is possible to provide a similar set to control the pulses transmitted to the counter days of the week, for example or any other information displayed in the context of other applications.
- the flip-flop 170 is no longer necessary in this case. It is then possible to adjust independently of one another the penetrations of the first and second fingers 163, 174 in the teeth associated with them.
- the periphery of the cam has a curve studied as a function of the force of the spring 22, 122 as it rotates at substantially constant torque.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1152402A FR2973123B1 (fr) | 2011-03-23 | 2011-03-23 | Mecanisme d'entrainement instantane pour mouvement horloger |
PCT/EP2012/055268 WO2012127054A1 (fr) | 2011-03-23 | 2012-03-23 | Mecanisme d'entrainement instantane pour mouvement horloger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2689298A1 true EP2689298A1 (fr) | 2014-01-29 |
EP2689298B1 EP2689298B1 (fr) | 2015-06-03 |
Family
ID=46017797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12717214.6A Active EP2689298B1 (fr) | 2011-03-23 | 2012-03-23 | Mecanisme d'entrainement instantane pour mouvement horloger |
Country Status (4)
Country | Link |
---|---|
US (1) | US8750080B2 (fr) |
EP (1) | EP2689298B1 (fr) |
FR (1) | FR2973123B1 (fr) |
WO (1) | WO2012127054A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8995238B2 (en) * | 2013-03-28 | 2015-03-31 | Rolex S.A. | Device for displaying time information |
EP3173876B1 (fr) * | 2015-11-26 | 2020-09-02 | Rolex Sa | Système de calendrier horloger |
CH713659A1 (de) * | 2017-03-30 | 2018-10-15 | Richemont Int Sa | Uhr mit digitaler Zeitanzeige. |
EP3489761B1 (fr) * | 2017-11-24 | 2020-05-06 | Blancpain SA | Mobile d'horlogerie a roue unidirectionnelle |
CH715723B1 (fr) * | 2019-01-10 | 2022-08-15 | Richemont Int Sa | Mécanisme de saut instantané d'un mobile d'affichage. |
EP3904962B1 (fr) | 2020-05-01 | 2023-08-02 | Rolex Sa | Dispositif d'indexation et dispositif d'affichage d'une indication horaire ou dérivée de l'heure |
EP3904964B1 (fr) * | 2020-05-01 | 2023-03-08 | Rolex Sa | Dispositif d'affichage d'une indication horaire ou dérivée de l'heure et dispositif d'indexation |
EP4246247A1 (fr) * | 2022-03-14 | 2023-09-20 | Patek Philippe SA Genève | Mécanisme d'actionnement pour pièce d'horlogerie |
CH719977B1 (fr) * | 2022-08-22 | 2025-01-15 | Patek Philippe Sa Geneve | Mécanisme horloger à affichage sautant |
CH720496A1 (fr) * | 2023-02-13 | 2024-08-30 | Richemont Int Sa | Mécanisme d'entraînement d'affichage horloger |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242512B (de) * | 1964-08-25 | 1967-06-15 | United States Time Corp | Anzeigevorrichtung an einer Uhr zum Anzeigen einer Vielzahl von Kalenderinformationen |
GB1169329A (en) * | 1968-03-29 | 1969-11-05 | Suwa Seikosha Kk | Calendar Timepiece |
DE2060056A1 (de) * | 1970-12-07 | 1972-06-15 | Pforzheimer Uhren Rohwerke | Datumschaltung fuer Uhren |
CH581857B5 (fr) * | 1974-04-05 | 1976-11-15 | Tavannes Ebauches Sa | |
SG102647A1 (en) * | 2000-12-22 | 2004-03-26 | Ebauchesfabrik Eta Ag | Timepiece provided with a date having a large aperture |
EP1336907A2 (fr) * | 2002-02-14 | 2003-08-20 | Richemont International S.A. | Mécanisme de commande pour dispositif de mise à l'heure d'une montre ainsi que montre incorporant ce mécanisme |
EP1406131A1 (fr) | 2002-10-01 | 2004-04-07 | Manufacture Roger Dubuis S.A. | Dispositif mécanique d'affichage des heures et des minutes |
ATE431580T1 (de) * | 2005-12-22 | 2009-05-15 | Montres Breguet Sa | Mit arretierungsmitteln versehene kalenderuhr |
EP1857890B1 (fr) * | 2006-03-30 | 2012-05-30 | Richemont International S.A. | Dispositif de déclenchement d'une impulsion |
DE602006013838D1 (de) | 2006-11-06 | 2010-06-02 | Longines Montres Comp D | Uhr, die einen Korrekturmechanismus für eine Vorrichtung zur Anzeige einer Zeitgröße umfasst |
-
2011
- 2011-03-23 FR FR1152402A patent/FR2973123B1/fr active Active
-
2012
- 2012-03-23 EP EP12717214.6A patent/EP2689298B1/fr active Active
- 2012-03-23 WO PCT/EP2012/055268 patent/WO2012127054A1/fr active Application Filing
-
2013
- 2013-09-23 US US14/034,533 patent/US8750080B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2012127054A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2973123A1 (fr) | 2012-09-28 |
US8750080B2 (en) | 2014-06-10 |
US20140022874A1 (en) | 2014-01-23 |
WO2012127054A1 (fr) | 2012-09-27 |
FR2973123B1 (fr) | 2014-01-03 |
EP2689298B1 (fr) | 2015-06-03 |
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