EP1760548B1 - Timepiece incorporating a mechanism for the indication of time by a striking mechanism - Google Patents
Timepiece incorporating a mechanism for the indication of time by a striking mechanism Download PDFInfo
- Publication number
- EP1760548B1 EP1760548B1 EP20050405504 EP05405504A EP1760548B1 EP 1760548 B1 EP1760548 B1 EP 1760548B1 EP 20050405504 EP20050405504 EP 20050405504 EP 05405504 A EP05405504 A EP 05405504A EP 1760548 B1 EP1760548 B1 EP 1760548B1
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- EP
- European Patent Office
- Prior art keywords
- lever
- winding
- wheel
- rake
- timepiece
- 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.)
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- 230000007246 mechanism Effects 0.000 title claims description 44
- 238000004804 winding Methods 0.000 description 64
- 241000237858 Gastropoda Species 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 210000003423 ankle Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 244000257782 Ipomoea triloba Species 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/12—Reiterating watches or clocks
-
- 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
- G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding
- G04B9/005—Supervision of the state of winding, e.g. indicating the amount of winding by optical indication of the amount of winding
Definitions
- the present invention relates to a timepiece provided with a mechanism for indicating the time by striking, comprising a single barrel for a mainspring, comprising on the one hand a drum, secured to the outer end of said motor spring and a gear engaged with the work train and secondly a shaft secured to the inner end of said motor spring and connected to a gear engaged with the ring gear by a drive device.
- This mechanism comprises a device with double ratchet superposed, connected by a pin attached to a ratchet integral with the barrel shaft, engaged with a slot in an arc of the second ratchet.
- the winding of the spring to cause the ringing is obtained using a rack engaged with a rake coaxial with the two ratchets and provided with a pawl to drive the ratchet bearing the pin relative to the other ratchet, one end to the other of the slot.
- the ratchet rakes the ratchet until the pin is stopped by the other end of the slot in an arc.
- the object of the present invention is in particular to remedy, at least in part, the disadvantages of the aforementioned solutions.
- this invention relates to a timepiece provided with a mechanism for indicating the time by ringing according to claim 1.
- a particularity of the great-time mechanism for a timepiece according to the present invention lies in the fact that it is located on both sides of the movement of the watch, respectively illustrated by the figures 1 and 2 .
- the bridges, the milling of the plate and the organs of the timepiece itself have not been represented, with the exception of the barrel 1 of the mainspring, to the extent that the same barrel 1 used to drive the gear of the timepiece 2, called the finishing gear and the ring gear 3, as illustrated by the Figures 3 and 4 .
- the barrel shaft 1 is integral with a winding wheel 4 which, unlike the traditional ratchet, is not associated with a ratchet and can therefore turn in both directions.
- This winding mobile 4 is intended to come into selective engagement with a winding return 5 pivotally mounted on a rocker 6, itself pivoting about the pivot axis of a winding crown 7 in engagement with a winding pinion 8 flip-flop of the winding and setting-up rod 9.
- the flip-flop 6 still carries two references 10.
- a time setting lever 14 is engaged with a groove of the winding and setting rod. 9.
- This pull tab 14 has a pin 14a intended to engage with a surface 6a of the rocker 6 in the setting position of the winding stem 9 ( figure 13 ), to put the timer switch 10 into engagement with the timer wheel 11 of the usual timer train (not shown).
- the winding and setting rod 9 is associated with a winding stem crown 78 to be screwed onto a member (not shown) integral with the housing for protecting the clockwork mechanism.
- This type of housing with screwed winding crown crown is well known to those skilled in the art and is used to improve the sealing of the housing to the passage of the winding stem. It is not part of the present invention and therefore does not need to be described to understand the invention. It is sufficient to know that to allow the screwing of the winding stem crown 78, it must be associated with the winding stem 9 so as to be disengaged from this rod 9.
- the crown of the winding stem (not shown) comprises, in known manner, a tubular portion which has at its end a portion of polygonal section which, in the unscrewed position of the crown of the winding stem is engaged with a polygonal portion complementary section (not shown) of the winding stem 9 by a spring (not shown) exerting an axial force tending to move the crown of the winding stem 9, so that when the winding stem crown 78 is unscrewed, the two polygonal clutch parts 78a, 9a are engaged, which makes it possible to drive the winding stem 9 in rotation about its longitudinal axis and to carry out the winding of the mainspring or the setting time according to the axial position in which this winding stem 9 is put.
- a tubular element 78 is freely disposed around the winding stem 9, between the tube of the winding stem crown (not shown) and the lever 77.
- the barrel 1 ( Figures 5-7 ) comprises, as usual, a drum provided with a set of teeth 1a in engagement with the high gear of the finishing gear train 2.
- its cover is pivotally mounted with respect to the drum and carries a toothing 1b engaged with the pinion of the first mobile of the ring gear gear 3.
- the toothed lid 1b of the barrel 1 is pivotally mounted on a cylindrical portion 1c of the shaft 1d ( figure 7 ) of this barrel 1.
- This toothed lid 1b is connected to a portion of square section 1e of the barrel shaft 1d by a ratchet drive wheel 15 housed in the thickness of the toothed lid 1b, integral with the shaft barrel thanks to the portion of square section and whose ratchet gear is engaged with two pawls 16 ( figure 5 ), pressed in this ratchet toothing by two leaf springs 17a integral with a split elastic ring 17 resiliently fixed in a circular housing formed in the thickness of the toothed lid 1b.
- the cylinder 1 is still associated with a gear train 20 for the indication of the power reserve ( figures 1 , 8-12 ) of the spring of the barrel 1.
- the gear train 20 allows to add the angular displacements of the teeth 1a, 1b and to subtract the angular displacement of the shaft 1d of the barrel consecutive to the winding of the spring of the barrel 1.
- a first pinion 21 is mounted on the same portion of square section 1g of the barrel shaft 1d as that receiving the winding ratchet 4.
- a second pinion 22, coaxial with the first 21 is integral with the cylindrical hub 1f of the barrel drum provided with teeth 1a.
- the first pinion 21 meshes with a first wheel 23, while the second gear 22 meshes, via a gear 24, with a second wheel 25, coaxial with the first wheel 23, so that the two wheels 23 and 25 rotate both in the opposite direction to clockwise ( figure 10, 11 ) when the spring disarms, even if the gears 21, 22 rotate in opposite directions from one another.
- the winding ratchet 4 rotates the barrel shaft 1d in the opposite direction to that of the clockwise during the winding of the spring barrel 1, the wheel 23 is then driven in the direction of Clockwise.
- the wheel 25 is pivotally mounted on a frame member B ( figure 12 ). Between this wheel 25 and the wheel 23, a free wheel 26 is mounted, coaxial with the other two. This free wheel 26 has five openings in each of which a ball 27 is freely mounted. This free wheel 26 also serves as a ball cage. It is mounted on a cylindrical part of a nut 29 ( figure 12 ) and is held between a bearing surface of this nut 29 and a bearing surface of a screw 30 screwed into the nut 29. The diameter of the balls 27 is greater than the thickness of the free wheel 26, so that these balls can make protruding from both sides of the free wheel 26.
- the wheel 23 is pivotally mounted in an opening of an elastic arm 28 integral with the frame B of the watch. The pressure exerted by this elastic arm 28 on the wheel 23 serves to allow the wheels 23 and 25 to drive the balls 27 and consequently the freewheel-shaped ball cage 26.
- This device allows the free wheel 26 to total or subtract the simultaneous angular displacements of the wheels 23, 25 as they rotate in the same direction or in opposite directions relative to each other. Then the rotation of the freewheel 26 is transmitted to two mobiles 31, 32 of the power reserve gear train, as well as to a toothed sector 33 ( figure 1 ) of the mobile power reserve indicator, intended to carry a needle 33a disposed opposite a graduation (not shown) carried by the dial of the timepiece.
- snails in this type of mechanism; the snail of the hours 34, the snail of the quarters 35 and the snail of the minutes 36 ( figure 2 ).
- snails 34-36 are driven in known manner by the time wheel of the timepiece. This training of snails, moreover known, is not necessary for the understanding of the present invention, so that it is not described here. It is sufficient to know that the snail of the hours 34 is driven at a rate of 1 turn in 12 hours, as the hour hand of the timepiece, while the quarter and minute snails 35, 36 are driven as minute hand, at the rate of 1 turn per hour.
- Each snail 34-36 is associated with a ring rake, namely, respectively, the rake hours 37, the rake quarters 38 and rake minute 39.
- the three rakes 37 -39 are here rotated at the geometric center of the watch movement.
- Each of these rakes 37-39 is subjected to the force of a return spring 40, 41, respectively 42 ( figure 2 ), which tends to rotate it clockwise.
- the return spring 40 acts on a latch 43 for locking the winding stem, the function of which will be explained later.
- This flip-flop 43 has a toothed sector 43a engaged with a toothed sector 37b of the hour rake 37 ( figure 19 ).
- the mechanism for driving ringtones 37-39 when the bell is sounding is illustrated by the figures 19 and 20 . It comprises, on the axis of the second mobile 3b of the ring gear 3, a free pinion 44 engaged with a toothed sector 37c formed along the inner edge of the hour rake 37.
- a second pinion 45 identical to the free pinion 44 , is mounted on a portion of square section of the axis of the second ringing mobile 3b.
- a clutch rocker 46 pivoted about an axis 46a carries a clutch gear 47 whose thickness corresponds substantially to that of the two pinions 44 and 45, so that when this clutch gear 47 is engaged with these gables 44, 45, it secures the hour rake 37 with the striking gear 3.
- the triggering mechanism will be described in more detail later. However, the operation of rakes 37-39 can be explained here.
- the pinion 47 of the clutch rocker 46 is held in engagement with the free pinion 44 by an arm of a trigger lever 48 of the bell, engaged with a roller 46b of the clutch rocker 46, as illustrated by FIG. position of this lever 48 drawn in lines full on the figure 19 .
- the lever 48 Upon release, the lever 48 is moved to the position shown in broken lines on the figure 19 which releases the free gear 44 engaged with the teeth 37c of the hour rake 37.
- the spring 40 can rotate the hour rake 37 clockwise until its feeler 37d abuts one of the rungs of the hours snail 34.
- the hour rake 37 begins its clockwise rotation, along with the quarter rake 38 and the minute rake 39.
- this rake 39 moves its cam 39b in which an end 81a of the locking rocker 81 is engaged, thus causing this blocking rocker 81 to swing clockwise about its pivot axis 81c, making it pass from the position illustrated by the figure 24 to that illustrated by the figure 25 .
- Since the other end of this rocker is engaged with the opening 18c of the locking lever 18 of the ringing wheel 19, it pivots the locking lever 18 in the direction of clockwise, thus removing the brake 18b of the steering wheel 19 of the ring gear, releasing the ring gear 3.
- the blocking lever 18 is on the side of the clockwork movement opposite to that on which the ringing rakes are located, so that the blocking rocker 81 crosses the watch movement to engage the cam 39b of the timer rake 39 ( figures 1 and 2 ) which is on the other side of the movement.
- the trigger lever 48 is controlled by referring in particular to figures 2 , 17 and 18 , the latter two essentially showing the whole of the trigger mechanism actuated by the clockwork mechanism, as well as the manual triggering device, in the different positions corresponding to the different functions.
- the trigger mechanism comprises a quarter star 49 fixed on the same mobile of the timepiece as the snails of quarters 35 and minutes 36, so that it is driven at a rate of turn per hour.
- a rocker 50 subjected to the pressure of a return spring 51 comprises an arm whose end intersects the trajectory of the teeth of the quarter star 49 which rotates in the opposite direction of that of clockwise.
- a pusher 52 is articulated by means of a toggle joint 53.
- This pusher 52 also comprises a spring 52a which rests on an eccentric 54 secured to the frame and a arm 52b whose role will be explained later.
- the pusher 52 is intended to push a lever 55 maintained resiliently applied by a return spring 56 against an eccentric stop 57.
- An end 55a of an elastic arm 55c of this lever 55 carries a pin engaged in a slide 48a provided to the end of a second arm of the trip lever 48.
- the pusher is moved into the triggering position illustrated in broken lines on the figure 17 , by pivoting the lever 55, whose end 55a then moves the release lever 48 in its position shown in dashed lines, in which position it releases the clutch rocker 46 to drop the ring rakes 37-39 against respective snails 34-36, as previously explained.
- a pin 37e engaged with an arcuate opening 38c of the quarter rake 38 ( figure 21 ) drives the latter, which in turn drives the minutes rake via a pawl 58 ( figure 22 ) biased by a spring 59 which is engaged with a ratchet tooth 39c minute rake 39, as soon as the pawl 58 leaves a fixed stop 60 secured to the balance bridge, after the ringing of the last quarter of an hour.
- the stopping of the ring is produced by the blocking of the steering wheel 19 by the brake 18b, as soon as the end 81a ( figure 24 ) of the blocking lever 81 arrives at the end of the cam 39b minute rake 39 and causes, by its swinging in the opposite direction to that of the clockwise, a slight pivoting of the locking lever 18 for the move from the position illustrated by the figure 25 to that illustrated by the figure 24 and therefore causes the application of its brake 18b against the steering wheel 19 and the stop of the ring gear.
- a ringing arresting cam 61 ( figures 1 and 23 ) is keyed on the last mobile 32 of the power reserve indicator wheel.
- the angular position of this cam 61 is chosen so as to block the clutch rocker 46 from the moment when the power reserve of the spring of the barrel 1 reaches a running time of the movement of the timepiece fixed to a certain value, for example 24 hours.
- This cam 61 is in desmodromic connection with the shaft and the drum of the common cylinder (1) with an angular ratio chosen so that its total displacement angle corresponding to the total winding angle of the mainspring does not exceed 360 ° .
- This cam 61 is intended to move a locking lever 79 pivoting about an axis 79d, between two positions, an unlocking position shown in solid line by the Figures 23 and 23a and a locking position illustrated in broken lines by the figure 23 and by figure 23b .
- the lever has two projections 79a, 79b.
- This lock lever 79 is secured to a return spring 79c which bears against the plate ( figure 1 ), so that this return spring determines the two positions of the locking lever 79.
- This locking lever 79 has an opening 79e in which is engaged play with one end of a latch 80 pivoting about an axis 80a oriented perpendicular to the pivot axis 70d of the locking lever 79.
- This rocker 80 has a flat locking surface 80b, which in its locking position is shown in broken lines by the figure 23 and in continuous line by the figure 23b , lies in the path of an arm 46c of the clutch rocker 46.
- the striking mechanism illustrated by the figure 17 and described above, is further connected to a triggering mechanism of this ringing on demand which comprises a manual control rocker 62 hinged around an axis 62a and whose tilting is controlled by a pusher 63 acting at one of its ends.
- the other end of this manual control lever 62 is intended to act on a transmission lever 64 which has a slide 64a in which the pin 55a located at the end of the elastic arm 55c of the lever 55 is engaged. Therefore, if the trip lever 48 is actuated by the manual control rocker 62, between two quarters of hours where the ringing sounds according to the incidental ringing mode, this ringing will sound the time, the quarter (s) and minutes after the last quarter, provided that the bell is not disabled. We have seen a mode of neutralization of this ring, we will see others later.
- FIG 17 shows this locking device when the winding stem 9 is in the winding position, corresponding to that of its two axial positions in which it is closest to the center of the movement of the timepiece, drawn in solid lines.
- a groove 9a of this winding stem 9 is engaged, like a pull rod, with a latch 65 pivoting about an axis 65a.
- This latch 65 includes a pin 65b engaged with a return spring 66b secured to a locking cam 66 pivoting about an axis 66a.
- This locking cam 66 also includes a stopper 66c in the form of an ankle intended to cooperate with the locking lever of the winding stem 43, whose toothed sector 43a engages the toothed sector 37a of the hour rake 37.
- the winding stem 9 is in the winding position.
- the manual ringer control lever 62 can be operated about its pivot axis 62a to trigger the ringer mechanism, since the locking cam 66 does not prevent an ankle 62b, which extends perpendicularly to the end of the lever 62 on which the pusher 63 acts, to move.
- the time-setting rod 9 can be pulled axially towards the outside of the movement, in the setting position, since in the stopping position of the rake of At 37 hours, the latch 43 of the winding stem prevents the locking cam 66 from rotating while retaining its stop 66c. Therefore, the winding stem 9 can be moved to its setting position shown in continuous lines on the figure 18 .
- the second position illustrated in broken lines by the figure 18 shows the winding stem 9 pushed towards the center of the movement of the timepiece, in the winding position.
- the blocking latch 43 is moved counterclockwise, releasing the stop 66c, so that the return spring 66b of the locking cam 66 rotates clockwise about its axis of rotation.
- pivoting 66a which has the effect of engaging the pin 65b of the latch 65 in a concave locking slot 66d of the locking cam 66, preventing axial displacement of the winding stem 9 outward movement of the timepiece, as the hour rake 37 has not returned to the stop position, corresponding to the end of the ring, position in which the latch 43 of the winding stem 9 is brought back by the hour rake 37 in its position drawn in solid lines, corresponding to the stop of the ring.
- the part of the striking mechanism illustrated by the figure 16 is relative to the selection of the ringing mode chosen between three possibilities: the great ringing, ringing passing the hours and quarters every quarter of an hour and in addition, when the operation of the manual control lever 62 ring between two-quarters of an hour, the minutes, the little bell ringing in passing only the quarters, and in addition, when the manual control lever 62 is pressed between two quarters of an hour, the minutes and finally the silent mode , removing any ringing in passing.
- This selection mechanism comprises a circular cam 67 similar to a column wheel of a chronograph mechanism.
- This column wheel 67 is designed to pass successively from one of the three ring modes to the other in a determined succession, then to start the same cycle again indefinitely by exerting each time a pressure on a control pusher (not shown ) accessible outside the watch box.
- This column wheel 67 is driven in a counter-clockwise direction by an articulated ratchet 68a 68a controlled by a pusher (not shown) mounted on the watch case, acting in the direction of the arrow F in FIG. end of the rocker 68 opposite that to which the pawl 68a is hinged.
- a pawl spring 77 places this pawl 68a in engagement with a ratchet wheel 67a set on the column wheel 67 and constantly tends to hold the pawl 68a in an angular position relative to the ratchet wheel 67a corresponding to its position. of rest illustrated by the figure 16 .
- Successive pressures in the direction of the arrow F on the end of the rocker 68 opposite that where the pawl is hinged alternately with the release of this pressure can rotate the column wheel 67 in successive steps.
- a selector upper cam 67b is disposed above the four columns 67c, with which a pivoted selector rake 69 is engaged under the pressure of a return spring 70.
- This selector rake 69 meshes with a toothed sector.
- 69a with a pinion 71 of an indicator (not shown) for displaying the selected ringing mode.
- Two levers 72, 73 cooperate with the columns 67c of this column wheel 67, a ring / silence control lever 72 and a large ring / small ring control lever 73.
- Each of these levers 72, 73 carries a control pin 72a. respectively 73a which both traverse the movement of the timepiece.
- the ankle 72a is visible on the figures 2 , 17 and 18 on which it is shown in solid lines in its ringing control position and in dashed lines in its silence control position of the ring triggering mechanism.
- the selection in silent mode is only operative for the ringing mode said in passing, but not on the manually operated bell, since in this case, the manual control lever 62 acts directly on the lever trigger 48 by means of the transmission lever 64, so that the user always has the possibility to actuate the repetition, even in silent mode, unless the winding and setting rod 9 is in setting position, as explained above, or that the cam 61 locks the clutch lever 46 at the end of winding of the mainspring, to avoid causing the stoppage of the watch movement .
- the ankle 73a of the small and large ring control lever 73 is visible on the bridge side view of the figure 2 , as well as on figures 17 and 18 .
- This pin 73a is engaged in an elongate opening 74a of a latch 74 for retaining the hour rake 37.
- This latch 74 is capable of occupying two positions, one drawn in broken lines and corresponding to the big bell, the another drawn in continuous line and corresponding to the small ring.
- the end 74b of the rocker 74 is placed in the trajectory of the latch 43 for locking the rod winder which is in kinematic connection with the hour rake 37 by its toothed sector 43a engaged with the toothed sector 37b of the hour rake 37. Therefore, in this position, the rocker 43 can move only a limited angle .
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Description
La présente invention se rapporte à une pièce d'horlogerie munie d'un mécanisme d'indication de l'heure par sonnerie, comportant un seul barillet pour un ressort moteur, comprenant d'une part un tambour, solidaire de l'extrémité externe dudit ressort moteur et une denture en prise avec le rouage de finissage et d'autre part un arbre, solidaire de l'extrémité interne dudit ressort moteur et relié à une denture en prise avec le rouage de sonnerie par un dispositif d'entraînement.The present invention relates to a timepiece provided with a mechanism for indicating the time by striking, comprising a single barrel for a mainspring, comprising on the one hand a drum, secured to the outer end of said motor spring and a gear engaged with the work train and secondly a shaft secured to the inner end of said motor spring and connected to a gear engaged with the ring gear by a drive device.
On a déjà proposé le mécanisme susmentionné pour une montre-réveil dans le CH 290364. Selon ce mécanisme, le ressort de barillet peut entraîner d'une part le rouage de finissage par la denture du tambour de barillet et d'autre part la sonnerie du réveil par un engrenage différentiel. Un tel système prend une place importante, ce qui est un inconvénient d'autant plus grave lorsqu'il s'agit d'une montre-bracelet.The abovementioned mechanism for an alarm clock has already been proposed in the CH 290364. According to this mechanism, the mainspring can cause on the one hand the finishing gear by the toothing of the barrel drum and on the other hand the ring of the wake up by a differential gear. Such a system takes an important place, which is a disadvantage all the more serious when it comes to a wristwatch.
On a également proposé de relier un rouage de sonnerie à un barillet unique dans le CH 2808. Ce mécanisme comporte un dispositif à double rochet superposés, reliés par une goupille fixée à un rochet solidaire de l'arbre de barillet, en prise avec une fente en arc de cercle du second rochet. Le remontage du ressort pour entraîner la sonnerie est obtenu à l'aide d'une crémaillère en prise avec un râteau coaxial aux deux rochets et muni d'un cliquet pour entraîner le rochet portant la goupille par rapport à l'autre rochet, d'une extrémité à l'autre de la fente. Après la fin du remontage, le rochet entraîne le râteau à l'aide du cliquet jusqu'à ce que la goupille soit arrêtée par l'autre extrémité de la fente en arc de cercle.It has also been proposed to connect a ring gear to a single barrel in the CH 2808. This mechanism comprises a device with double ratchet superposed, connected by a pin attached to a ratchet integral with the barrel shaft, engaged with a slot in an arc of the second ratchet. The winding of the spring to cause the ringing is obtained using a rack engaged with a rake coaxial with the two ratchets and provided with a pawl to drive the ratchet bearing the pin relative to the other ratchet, one end to the other of the slot. After the end of reassembly, the ratchet rakes the ratchet until the pin is stopped by the other end of the slot in an arc.
L'inconvénient de cette solution est de nécessiter la superposition de deux rochets et d'un râteau sur l'axe de barillet, ce qui est difficilement acceptable, dans le cas d'une montre-bracelet en particulier.The disadvantage of this solution is to require the superposition of two ratchets and a rake on the barrel axis, which is difficult to accept, in the case of a particular wristwatch.
Le but de la présente invention est notamment de remédier, au moins en partie, aux inconvénients des solutions susmentionnées.The object of the present invention is in particular to remedy, at least in part, the disadvantages of the aforementioned solutions.
A cet effet, cette invention a pour objet une pièce d'horlogerie munie d'un mécanisme d'indication de l'heure par sonnerie selon la revendication 1.For this purpose, this invention relates to a timepiece provided with a mechanism for indicating the time by ringing according to
Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution d'une pièce d'horlogerie munie d'un mécanisme d'indication de l'heure par sonnerie objet de la présente invention, notamment d'un mécanisme de grande sonnerie avec répétition minutes.
- La
figure 1 est une vue en plan simplifiée côté cadran, de cette pièce d'horlogerie; - la
figure 2 est une vue en plan simplifiée de cette pièce d'horlogerie côté ponts; - la
figure 3 est une vue côté ponts des rouages de comptage du temps et de la sonnerie; - la
figure 4 est la même vue que lafigure 3 , vue côté cadran; - la
figure 5 est une vue en perspective, vue côté ponts, du barillet et des deux premières roues de chacun des rouages desfigures 3 et 4 ; - la
figure 6 est une vue des mêmes éléments que sur lafigure 5 , vu côté cadran; - la
figure 7 est une vue en coupe diamétrale du barillet desfigures 3-6 ; - la
figure 8 est une vue partielle de lafigure 1 , montrant le barillet et le rouage indicateur de réserve de marche; - la
figure 9 est une vue en élévation de lafigure 8 ; - la
figure 10 est une vue en plan du train d'engrenage indicateur de réserve de marche du rouage de sonnerie; - la
figure 11 est une vue en plan du train d'engrenage indicateur de réserve de marche du rouage de comptage du temps; - la
figure 12 est une vue partielle en coupe selon la ligne XII-XII de lafigure 8 ; - la
figure 13 est une vue de détail du mécanisme de remontage et de mise à l'heure en position de mise à l'heure, de la pièce d'horlogerie; - la
figure 14 est la même vue que lafigure 13 , le mécanisme étant en position de remontage; - la
figure 15 est la même vue que lafigure 13 , le mécanisme étant en position de repos; - la
figure 16 est une vue partielle en plan de lafigure 1 , montrant un dispositif sélecteur des modes de sonnerie; - la
figure 17 est une vue partielle en plan de lafigure 2 , montrant le mécanisme de déclenchement de la sonnerie et un mécanisme de blocage de sécurité qui lui est associé; - la
figure 18 est une vue partielle en plan de lafigure 17 , montrant le mécanisme de déclenchement de la sonnerie dans deux autres positions; - la
figure 19 est vue partielle en plan de lafigure 2 , du mécanisme d'entraînement du marteau des heures; - la
figure 20 est une vue partiellement en coupe selon la ligne XX-XX de lafigure 19 ; - la
figure 21 est une vue en en perspective partielle de lafigure 2 ; - la
figure 22 est une autre vue en perspective partielle de lafigure 2 sur laquelle le pont de balancier est ajouté; - la
figure 23 est une vue de détail en perspective d'un mécanisme de blocage de la sonnerie; - les
figures 23a, 23b sont des vues partielles de lafigure 23 dans deux positions du dispositif de blocage; - la
figure 24 est une vue de détail en perspective d'un mécanisme de freinage du volant de sonnerie dans une première position; - la
figure 25 est une vue semblable à lafigure 24 dans une seconde position du mécanisme de freinage du volant.
- The
figure 1 is a simplified plan view on the dial side of this timepiece; - the
figure 2 is a simplified plan view of this bridge-side timepiece; - the
figure 3 is a bridge side view of the time and ring counting machinery; - the
figure 4 is the same view as thefigure 3 , side view; - the
figure 5 is a perspective view, seen side bridges, the barrel and the first two wheels of each of the wheels ofFigures 3 and 4 ; - the
figure 6 is a view of the same elements as on thefigure 5 , seen on the dial side; - the
figure 7 is a diametrical sectional view of the barrel ofFigures 3-6 ; - the
figure 8 is a partial view of thefigure 1 , showing the barrel and gear wheel power reserve indicator; - the
figure 9 is an elevation view of thefigure 8 ; - the
figure 10 is a plan view of the power reserve indicator gear train of the ring gear; - the
figure 11 is a plan view of the power reserve indicator gear train of the time counting train; - the
figure 12 is a partial sectional view along the line XII-XII of thefigure 8 ; - the
figure 13 is a detail view of the winding mechanism and time setting in time setting position of the timepiece; - the
figure 14 is the same view as thefigure 13 the mechanism being in the winding position; - the
figure 15 is the same view as thefigure 13 the mechanism being in the rest position; - the
figure 16 is a partial plan view of thefigure 1 showing a ring mode selector device; - the
figure 17 is a partial plan view of thefigure 2 , showing the striking mechanism and a safety lock mechanism associated with it; - the
figure 18 is a partial plan view of thefigure 17 , showing the striking mechanism of the bell in two other positions; - the
figure 19 is partial view in plan of thefigure 2 , hammer drive mechanism hours; - the
figure 20 is a view partially in section along line XX-XX of thefigure 19 ; - the
figure 21 is a partial perspective view of thefigure 2 ; - the
figure 22 is another partial perspective view of thefigure 2 on which the balance bridge is added; - the
figure 23 is a detail view in perspective of a mechanism for blocking the ring; - the
Figures 23a, 23b are partial views of thefigure 23 in two positions of the locking device; - the
figure 24 is a detailed perspective view of a braking mechanism of the steering wheel in a first position; - the
figure 25 is a view similar to thefigure 24 in a second position of the steering wheel brake mechanism.
Une particularité du mécanisme de grande sonnerie pour pièce d'horlogerie selon la présente invention réside dans le fait qu'il se situe des deux côtés du mouvement de la montre, illustrés respectivement par les
Comme illustré par les
La tige de remontoir et de mise à l'heure 9 est associée à une couronne de tige de remontoir 78 destinée à être vissée sur un élément (non représenté) solidaire du boîtier destiné à protéger le mécanisme d'horlogerie. Ce type de boîtier avec couronne de tige de remontoir vissée est bien connu de l'homme de l'art et est utilisé pour améliorer l'étanchéité du boîtier au passage de la tige de remontoir. Il ne fait pas partie de la présente invention et n'a donc pas besoin d'être décrit pour comprendre l'invention. Il suffit de savoir que pour permettre le vissage de la couronne de tige de remontoir 78, celle-ci doit être associée à la tige de remontoir 9 de manière à pouvoir être débrayée de cette tige 9. C'est la raison pour laquelle, la couronne de la tige de remontoir (non représentée) comporte, de manière connue, une partie tubulaire qui présente à son extrémité une portion de section polygonale qui, en position dévissée de la couronne de la tige de remontoir est mise en prise avec une partie polygonale de section complémentaire (non représentée) de la tige de remontoir 9 par un ressort (non représenté) exerçant une force axiale tendant à écarter la couronne de la tige de remontoir 9, en sorte que lorsque la couronne de tige de remontoir 78 est dévissée, les deux parties polygonales d'embrayage 78a, 9a sont mise en prise, ce qui permet d'entraîner la tige de remontoir 9 en rotation autour de son axe longitudinal et d'effectuer le remontage du ressort moteur ou la mise à l'heure suivant la position axiale dans laquelle cette tige de remontoir 9 est mise.The winding and setting
Un élément tubulaire 78 est disposé librement autour de la tige de remontoir 9, entre le tube de la couronne de tige de remontoir (non représenté) et le levier 77.A
Lorsque la tige de remontoir et de mise à l'heure 9 est dans la position axiale illustrée par la
Lorsque la couronne de tige de remontoir 78 est en position dévissée (
Pour entraîner les rouages de finissage 2 et de sonnerie 3, le barillet 1 (
Le couvercle denté 1b du barillet 1 est monté pivotant sur une portion cylindrique 1c de l'arbre 1d (
Le barillet 1 est encore associé à un train d'engrenages 20 pour l'indication de la réserve de marche (
A cet effet, un premier pignon 21 est monté sur la même portion de section carrée 1g de l'arbre de barillet 1d que celle recevant le rochet de remontage 4. Un second pignon 22, coaxial au premier 21 est solidaire du moyeu cylindrique 1f du tambour de barillet muni de la denture 1a. Le premier pignon 21 engrène avec une première roue 23, tandis que le second pignon 22 engrène, par l'intermédiaire d'un renvoi 24, avec une seconde roue 25, coaxiale à la première roue 23, en sorte que les deux roues 23 et 25 tournent toutes deux dans le sens contraire à celui des aiguilles d'une montre (
La roue 25 est montée pivotante sur un élément de bâti B (
Ce dispositif permet à la roue libre 26 de totaliser ou de soustraire les déplacements angulaires simultanés des roues 23, 25 suivant qu'elles tournent dans le même sens ou en sens contraire l'une par rapport à l'autre. Ensuite la rotation de la roue libre 26 est transmise à deux mobiles 31, 32 du rouage indicateur de réserve de marche, ainsi qu'à un secteur denté 33 (
Nous allons décrire maintenant le mécanisme de sonnerie proprement dit. Comme tous les mécanismes de ce type, il comporte trois cames appelées limaçons dans ce type de mécanisme; le limaçon des heures 34, le limaçon des quarts 35 et le limaçon des minutes 36 (
Chaque limaçon 34-36 est associé à un râteau de sonnerie, à savoir, respectivement, le râteau de heures 37, le râteau des quarts 38 et le râteau des minutes 39. Par contre et contrairement aux mécanismes de ce type, les trois râteaux 37-39 sont ici pivotés au centre géométrique du mouvement d'horlogerie. Chacun de ces râteaux 37-39 est soumis à la force d'un ressort de rappel 40, 41, respectivement 42 (
Le pivotement de ces râteaux au centre du mouvement permet de donner aux secteurs dentés respectifs 37a, 38a, 39a des dentures à rochets de ces râteaux 37-39 pour l'actionnement des levées (non représentées parce que bien connues) des marteaux de sonneries 75, 76 (
Le mécanisme d'entraînement des râteaux de sonneries 37-39, lors du déclenchement de la sonnerie, est illustré par les
On décrira le mécanisme de déclenchement plus en détail par la suite. On peut cependant expliquer ici le fonctionnement des râteaux 37-39. Le pignon 47 de la bascule d'embrayage 46 est maintenu en prise avec le pignon libre 44 par un bras d'un levier de déclenchement 48 de la sonnerie, engagé avec un galet 46b de la bascule d'embrayage 46, comme illustré par la position de ce levier 48 dessinée en trait plein sur la
Nous allons expliquer maintenant comment est commandé le levier de déclenchement 48 en nous référant en particulier aux
A l'extrémité de l'autre bras de cette bascule 50, un poussoir 52 est articulé à l'aide d'une genouillère 53. Ce poussoir 52 comporte encore un ressort 52a qui s'appuie sur un excentrique 54 solidaire du bâti et un bras 52b dont le rôle sera expliqué par la suite. Le poussoir 52 est destiné à pousser un levier 55 maintenu appliqué de manière élastique par un ressort de rappel 56 contre une butée excentrique 57. Une extrémité 55a d'un bras élastique 55c de ce levier 55 porte une cheville engagée dans une glissière 48a ménagée à l'extrémité d'un second bras du levier de déclenchement 48.At the end of the other arm of this
Comme on peut le constater en se référant à la position de déclenchement partiellement dessinée en traits interrompus sur la
Lorsque le poussoir 52 arrive à l'extrême fin de sa course, il libère le bec 55b du levier 55, permettant au ressort de rappel 56 de le ramener contre la butée 57. Par conséquent, le levier de déclenchement 48 revient dans sa position dessinée en trait continu sur la
Une came d'arrêt de sonnerie 61 (
Ce levier de verrouillage 79 présente une ouverture 79e dans laquelle est engagée avec jeu une extrémité d'une bascule de verrouillage 80 pivotant autour d'un axe 80a d'orientation perpendiculaire à l'axe de pivotement 70d du levier de verrouillage 79. Cette bascule de verrouillage 80 présente une surface plane de verrouillage 80b, qui dans sa position de verrouillage illustrée en traits interrompus par la
Ainsi, lorsque le levier de déclenchement 48 libère la bascule d'embrayage 46 et que la saillie 61a de la came 61 a déplacé le levier de verrouillage 79 dans sa position illustrée en traits interrompus par la
Le mécanisme de déclenchement de la sonnerie, illustré par la
Pour le moment, nous allons examiner une autre partie du mécanisme de sonnerie lié au levier de commande manuelle 62 de la sonnerie. On sait en effet qu'il est absolument nécessaire de ne pas mettre la montre à l'heure pendant le fonctionnement de la sonnerie. De même, si on met la montre à l'heure, il ne faut pas que la sonnerie puisse fonctionner. Dans les deux cas, l'interférence entre le fonctionnement de ces deux mécanismes aurait des conséquences extrêmement dommageables pour ces mécanismes.For the moment, we are going to examine another part of the striking mechanism linked to the
C'est la raison pour laquelle le levier de commande manuel est associé à un dispositif de blocage. La
Dans la position illustrée par la
Ce déplacement dans cette position de mise à l'heure provoque le pivotement de la bascule de verrouillage 65 dont la goupille 65b provoque à son tour celui de la came de verrouillage 66 contre la cheville 62b située à l'extrémité d'actionnement du levier de commande manuelle de la sonnerie 62. Par conséquent, dans cette position de mise à l'heure de la tige de remontoir 9, le levier de commande 62 est verrouillé.This displacement in this setting position causes the pivoting of the
La seconde position illustrée en traits interrompus par la
La partie du mécanisme de sonnerie illustrée par la
Ce mécanisme de sélection, illustré par la
Cette roue à colonnes 67 est entraînée dans le sens contraire à celui des aiguilles d'une montre par une bascule 68 à cliquet articulé 68a commandé par un poussoir (non représenté) monté sur la boîte de montre, agissant selon la flèche F à l'extrémité de la bascule 68 opposée à celle à laquelle le cliquet 68a est articulé. Un ressort de cliquet 77 met ce cliquet 68a en prise avec une roue à rochet 67a calée sur la roue à colonnes 67 et tend constamment à maintenir ce cliquet 68a, dans une position angulaire par rapport à la roue à rochet 67a, correspondant à sa position de repos illustrée par la
Une came supérieure 67b de sélecteur est disposée au-dessus des quatre colonnes 67c, avec laquelle un râteau de sélecteur 69 monté pivotant est mis en prise sous la pression d'un ressort de rappel 70. Ce râteau de sélecteur 69 engrène par un secteur denté 69a avec un pignon 71 d'un indicateur (non représenté) destiné à afficher le mode de sonnerie sélectionné.A selector
Deux leviers 72, 73 coopèrent avec les colonnes 67c de cette roue à colonnes 67, un levier de commande sonnerie/silence 72 et un levier de commande grande sonnerie/petite sonnerie 73. Chacun de ces leviers 72, 73 porte une cheville de commande 72a, respectivement 73a qui traversent toutes deux le mouvement de la pièce d'horlogerie. La cheville 72a est visible sur les
On a déjà décrit précédemment le fonctionnement du mécanisme de déclenchement des
La cheville 73a du levier de commande de petite et de grande sonnerie 73 est visible sur la vue côté ponts de la
Ceci a pour effet, de ne permettre le déplacement du râteau des heures 37 que d'un angle suffisant pour dégager les râteaux des quarts 38 et des minutes 39, permettant la sonnerie des quarts et des minutes, mais pas celle des heures étant donné que le déplacement autorisé par la bascule de retenue 74 est choisi de manière à empêcher la pénétration du palpeur 37d dans le limaçon des heures 34. Lors de la remontée du râteau des heures 37, étant donné que la chute du râteau 37, sous l'action du ressort 40 agissant sur la bascule 43, a été trop limitée pour que sa denture s'engage avec la levée d'actionnement (non représentée) du marteau des heures, aucune sonnerie d'heure ne se produit.This has the effect of only allowing the rake of the
Claims (4)
- Timepiece incorporating a mechanism for the indication of time by a striking mechanism, having a single barrel (1) for a mainspring, comprising on the one hand a drum attached to the outer end of said mainspring and teeth (1a) meshing with the going train (3), and on the other hand an arbor (1d) attached to the inner end of said mainspring and connected to teeth (1b) meshing with the striking work train (3) by a drive device, said timepiece being characterized in that a cover is pivoted to the drum, in that it is attached to teeth (1b) meshing with the first wheel of striking work train (3), and in that it is connected in rotation to said arbor (1d) by a unidirectional drive device (15-17) so as to couple it rotationally to said arbor (1d) only when the latter is driven in the mainspring-unwinding direction.
- Timepiece according to Claim 1, in which said unidirectional drive device (15-17) has on the one hand ratchet teeth (15) attached to one of the rotationally connected members, that is either the arbor (1d) or the cover (1b), and on the other hand at least one click (16) attached to the other of these members.
- Timepiece according to one of the preceding claims, in the form of a wristwatch.
- Timepiece according to one of the preceding claims, in which said mechanism is that of a grande sonnerie with repetition of the minutes.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20050405504 EP1760548B1 (en) | 2005-09-01 | 2005-09-01 | Timepiece incorporating a mechanism for the indication of time by a striking mechanism |
DE200560011433 DE602005011433D1 (en) | 2005-09-01 | 2005-09-01 | Clock with a timekeeping device by bell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20050405504 EP1760548B1 (en) | 2005-09-01 | 2005-09-01 | Timepiece incorporating a mechanism for the indication of time by a striking mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1760548A1 EP1760548A1 (en) | 2007-03-07 |
EP1760548B1 true EP1760548B1 (en) | 2008-12-03 |
Family
ID=36572365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050405504 Active EP1760548B1 (en) | 2005-09-01 | 2005-09-01 | Timepiece incorporating a mechanism for the indication of time by a striking mechanism |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1760548B1 (en) |
DE (1) | DE602005011433D1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3306416B1 (en) | 2016-10-04 | 2019-08-21 | ETA SA Manufacture Horlogère Suisse | Mechanical clock movement with power-reserve detection |
EP3306415B1 (en) * | 2016-10-04 | 2020-05-20 | ETA SA Manufacture Horlogère Suisse | Mechanical clock movement with power-reserve detection |
EP3855254A1 (en) * | 2020-01-24 | 2021-07-28 | Patek Philippe SA Genève | Timepiece movement |
EP3968094A1 (en) * | 2020-09-09 | 2022-03-16 | Omega SA | Timepiece selector mechanism |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH2808A (en) * | 1890-10-27 | 1891-06-15 | Spann H Th | Mechanism for winding the spring of repeater watches with a single barrel, the quantity necessary for striking or repeating, even when this spring is wound up at the top for movement |
CH290364A (en) * | 1950-11-23 | 1953-04-30 | Froidevaux Jean Michel | Alarm clock. |
CH318514A (en) * | 1954-08-06 | 1957-01-15 | Ditisheim & Cie Fabriques Vulc | Single barrel alarm wristwatch |
DE4012011A1 (en) | 1990-04-13 | 1991-10-17 | Int Watch Co Iwc | TENSION SPRING |
-
2005
- 2005-09-01 EP EP20050405504 patent/EP1760548B1/en active Active
- 2005-09-01 DE DE200560011433 patent/DE602005011433D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1760548A1 (en) | 2007-03-07 |
DE602005011433D1 (en) | 2009-01-15 |
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