EP2990879A1 - Clockwork - Google Patents
Clockwork Download PDFInfo
- Publication number
- EP2990879A1 EP2990879A1 EP14182694.1A EP14182694A EP2990879A1 EP 2990879 A1 EP2990879 A1 EP 2990879A1 EP 14182694 A EP14182694 A EP 14182694A EP 2990879 A1 EP2990879 A1 EP 2990879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transparent
- transparent disk
- toothing
- frame
- disk
- 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
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 16
- 210000000056 organ Anatomy 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 36
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
- G04B17/285—Tourbillons or carrousels
-
- 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
- G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
- G04B45/04—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc
Definitions
- the present invention relates to a clockwork movement, more particularly to a movement in which the barrel, part of the finishing gear train and the regulating member are carried by a rotating support.
- the rotating support is in the form of two transparent trays located above the fixed plate of the movement and pivotally mounted around a fixed center part by means of bearings. Between the two plates are mounted the barrel and a whirlwind including the regulating organ. The barrel is engaged with a toothing of the center piece and thus causes the rotating support rotating during its disarming. A fixed center wheel with internal teeth meshes with an average transmission which meshes with a pinion integral with the tourbillon cage. In this way, the rotation of the rotating support rotates the vortex. The rotating support performs one revolution per hour.
- a key is mounted in the bottom of the watch case to allow reassembly and setting the time of movement.
- the pavement carrying the minute hand is connected to the rotating support by friction and the hour hand by a timer wheel located under the fixed plate.
- the key is connected by a gear to the roadway and by another gear to the ratchet of the barrel.
- the friction between the roadway and the rotating support is effective during the normal (horometric) operation of the movement but gives way when the roadway is rotated by the user for setting the time of the movement.
- the present invention aims to propose a clockwork with a rotating support whose structure is compatible with obtaining a mysterious appearance.
- the first and second teeth are located in the central portion of the through opening.
- the first wheel is typically a part of the finishing gear of the movement. It may comprise a mobile of average meshing with the second toothing and a mobile of second meshing with the mobile of average and with an escape mobile of the regulating organ.
- the first and second teeth are typically distinct but, in a particular embodiment, they may be one and the same toothing.
- the first transparent disk and the second transparent disk can be connected to a time setting mechanism mounted in the frame, out of the through opening.
- the diameter of each of the peripheral teeth of the first transparent disk and the second transparent disk is greater than the diameter of the through opening.
- the first transparent disk and the second transparent disk may be sapphire.
- the display member of the first hour size is a minute indicator member and the second time scale display member is a time indicator member.
- a watch movement typically a wristwatch movement
- the frame 1 comprises in particular an annular plate 2 and bridges 3 fixed on the plate 2.
- Four transparent disks 4, 5, 6, 7, for example sapphire, are mounted in the central through opening 8 defined by the frame 1 of so as to be able to pivot about the axis A of the central opening 8 and the movement.
- Each disk 4, 5, 6, 7 constitutes the central and main part of a toothed wheel and is assembled, for example by gluing, by driving or by the method described in the patent application.
- the disc 4, called “minute disc” or “support disc”, is mounted in the through opening 8 via a bearing, typically a ball bearing.
- the outer ring 9 of the bearing is fixed to the plate 2 and thus part of the frame 1.
- the inner ring 10 of the bearing is fixed around the periphery of the minute disc 4, for example by gluing or driving, and the toothing 4a is fixed on this inner ring 10, for example by screwing.
- On the minute disc 4, in the through opening 8 are mounted off-center barrel, part of the finishing train and the regulating member of the movement.
- the barrel designated by the reference 11, comprises a barrel drum 12 provided with a toothing 13 at its periphery and housing a motor spring, the drum 12 being mounted around a barrel shaft 14
- Said part of the finishing train comprises an average wheel 15 and a second wheel 16.
- the regulating member comprises a balance spring 17 and an escapement, the escapement comprising an escapement wheel 18 and an anchor 19.
- the wheel of the average wheel 15 meshes with the pinion of the second wheel 16, the wheel of which meshes with the pinion of the escape wheel 18.
- Holes in the disk of minutes 4 receive stones 20 in which pivots of the wheel pivots.
- the opposed pivots of the barrel shaft 14 and the medium, second and exhaust mobiles 15, 16, 18 are pivoted in stones 21 located in holes that entails bridges attached to the minute disc 4 by means of pillars 22.
- said bridges comprise a gear and barrel bridge 23, two balance bridges 24 respectively receiving the two pivots of the axis of the pendulum and an anchor bridge 25.
- the minute disc 4 is driven at a rate of one revolution per hour.
- a minute indicator needle 26 is integral with the minutes disk 4. This needle 26 is for example in one piece with one of the bridges 23, 24, namely the gear and barrel bridge 23, as shown in FIGS. .
- a counterweight 27 (cf. figure 5 ) can be mounted on the periphery of the minute disc 4 to rebalance it.
- the disk 5, called “disengagement disc”, remains fixed during the normal operation of the movement and carries the center wheel 28 of the wheel finishing device, located in the central part of the through opening 8 along the axis A.
- the center mobile 28 is for example fixed by means of a screw 29 to a metal ring 30 driven or glued in a central hole 5.
- the minute disc 4 pivots around this center wheel 28.
- the center wheel 28 comprises a center pinion 28a and a center wheel 28b integral with each other.
- the toothing of the center pinion 28a is engaged with the toothing 13 of the barrel 11.
- the toothing of the center wheel 28b is in its engagement with the toothing of the pinion of the mobile of average 15.
- the center 28 could comprise a single toothing that would be engaged both with the toothing 13 of the barrel 11 and with the toothing of the pinion of the mobile of average 15.
- the clutch disc 5 is associated with a mechanism for setting the time which will be described later.
- the shaft 14 of the barrel 11 carries a ratchet 31 (see in particular figure 4 ) on which a pawl 32 acts to prevent it from rotating in one direction.
- the pawl 32 is fixed to the gear wheel and barrel 23, and is therefore integral with the minute disc 4.
- the ratchet 31 meshes with an intermediate wheel 33 mounted on the center mobile 28 freely in rotation around of the axis A relative to the mobile center 28.
- the disc 6, said "winding disc” is attached to the end of a barrel 34 of the intermediate wheel 33 by means for example of a screw 35.
- the winding disk 6 is part of a movement winding mechanism which will be described later.
- the disc 7 (cf. figures 3 and 5 ), said "hours disk” is mounted around a guide tube 36 which is fixed to the gear and barrel bridge 23 and which itself surrounds the barrel 34 of the intermediate wheel 33. In operation normal movement, the hour disk 7 is driven at a rate of one turn per 12 hours.
- An indicator hour hand 37 is integral with this hour 7 disc.
- the latter is connected to the minute disc 4 by a timer wheel 38 located in the frame 1, out of the through opening 8.
- the timer wheel 38 comprises three mobiles, the first mobile 39 being engaged with the toothing 7a carried by the hours disk 7, the third mobile 41 being in engagement with the toothing 4a carried by the minute disc 4 and the second mobile 40 connecting the mobiles 39, 41 to one another.
- the hours disk 7 is also connected to the time setting mechanism which will be described later.
- the toothings of the center pinion 28a and the barrel 11 are chosen so that the disarming of the barrel 11, more precisely of its mainspring, causes the minute disc 4 to rotate about the axis A at the aforementioned speed of a lathe hour to indicate the minutes by the minute hand 26 secured to the minute disc 4.
- the teeth of the mobiles 39, 40, 41 of the clock train 38 are chosen so that the rotation of the minute disc 4 rotates the 7 hour disc at the aforementioned speed of one turn per 12 hours, so as to indicate the hours by the hours hand 37 integral with the hour disc 7.
- each of the peripheral teeth 4a, 5a, 6a, 7a carried by the transparent discs 4, 5, 6, 7 is preferably greater than the diameter (ie the smallest diameter) 8.
- these teeth 4a, 5a, 6a, 7a can be easily hidden by elements of the frame 1 or by elements (bezel, etc.) of the watch case in which the movement is intended to to be mounted to give the movement or watch an appearance mysterious, that is to say, to ensure that no visible connection appears between the frame 1 or the watch case and the organs mounted on the disc minutes 4 which are visible through the ice and the background of the watch box.
- neither the mechanism of time setting nor the winding mechanism affect this mysterious character.
- the winding mechanism comprises (cf. figures 3 , 4 , 6 and 7 ) a winding stem 42 actuated by the user and extending radially.
- a winding pinion 43 free to rotate relative to the winding stem 42 and a sliding pinion 44 integral in rotation but free in translation between the winding pinion 43 and a setting pinion 45 relative to the winding stem 42.
- the translation of the sliding pinion 44 is controlled by a rocker 46 subjected to the action of a return spring 47.
- the latch 46 is controlled by a finger 48 of a pull tab 49 itself controlled by the winding rod 42 in a conventional manner.
- the surface of the rocker 46 with which the finger 48 engages comprises a hump 50 and two recesses 51, 52 to define three different positions of the rocker 46 corresponding to three axial positions of the winding stem 42.
- a first axial position P1 or pushed position, of the winding stem 42 (cf. figure 7 ) the finger 48 is in the recess 51 which keeps the sliding pinion 44 in a position where it meshes neither with the winding pinion 43 nor with the setting pinion 45.
- a rotation of the winding stem 42 has no effect on the movement and the rotation of the winding disk 6 caused by the rotation of the minute disk 4 is not communicated to the winding stem 42.
- the position P1 is the position of normal operation of the movement.
- a second axial position P2 or first drawn position, of the winding stem 42 (cf. figure 8 ) the finger 48 is on the hump 50 which keeps the sliding pinion 44 in a position where it meshes with the time setting pinion 45.
- the movement can be set by a rotation of the winding stem 42 in one direction or the other.
- a third axial position P3, or second drawn position, of the winding stem 42 (cf. figure 9 ) the finger 48 is in the recess 52 which plates a Breguet toothing of the sliding pinion 44 against a Breguet toothing of the winding pinion 43.
- a rotation of the winding stem 42 in said predetermined direction causes the winding pinion 43 to turn, which, by means of references 53 (cf. figure 4 ), rotates a mobile 54 which meshes with the toothing 6a carried by the winding disc 6.
- the winding disc 6 rotates the ratchet 31 via the intermediate wheel 33 which raises the barrel 11.
- the time setting mechanism comprises the winding stem 42, with its elements 44, 46, 49 associated, and the hour setting pinion 45.
- the latter meshes with the toothing 7a carried by the hour disc 7 (cf. figure 5 ).
- a rotation of the winding stem 42 when it is in the axial position P2 rotates the setting pinion 45, which rotates the hour disk 7 (and with it the hour hand 37), the minute wheel 38 and the minute disc 4 (and with it the minute hand 26).
- the time setting mechanism is associated with a disengaging device which prevents the time setting mechanism from exercising. a torque on the gear train 15, 16 and the barrel 11.
- the disengagement devices conventionally associated with the time setting mechanisms are constituted by a simple friction which is overcome during the time setting.
- the disengaging device comprises the clutch disc 5 and a locking device.
- the blocking device is illustrated in Figures 6 to 9 . Like the elements 43-49, it is mounted in the frame 1, out of the through opening 8, and comprises a control lever 55 hinged at one of its ends to the pull tab 49 and defining at its other end a cylindrical portion 56.
- the cylindrical portion 56 is housed in a U-shaped housing 57 of a blocker 58.
- the blocker 58 is a pivotally mounted member about an axis B parallel to the axis A and comprising two C-shaped arms 59 whose respective concave surfaces face each other.
- Each arm 59 is joined to a rigid portion 60 of the blocker 58 at one of its ends.
- the other end of each arm 59 is free.
- the respective free ends of the arms 59 leave a gap 61 between them.
- a star 62 which is free to rotate relative to the blocker 58.
- the bearing zone 63 of a jumper 64 is held in contact with the toothing of the star 62 by a spring of 65.
- the jumper 64 close to its support zone 63 the jumper 64 carries a pin 66 which extends in a direction parallel to the axis B, that is to say perpendicular to the pivot plane of the jumper 64 and the plan of the frame 1.
- the star 62 is integral in rotation with a pinion 67 (cf. figure 6 ) which meshes with the toothing 5a carried by the clutch disc 5.
- the angular position of the blocker 58 is controlled by the control lever 55, itself controlled by the pull tab 49, itself controlled by the axial position of the winding stem 42.
- the pin 66 of the jumper 64 is retained by one of the arms 59, so that the bearing zone 63 of the jumper 64 can not leave the toothing of the star 62.
- any rotation of the star 62 and thus of the clutch disc 5 is blocked.
- the P2 position (cf.
- the pin 66 is opposite the empty space 61 and is therefore not retained by any of the arms 59, so that the star 62 can rotate by jumping the jumper 64, thus allowing the clutch disc 5 to rotate him too.
- a rotation of the winding stem 42 to set the time of the movement rotates the minute disk 4 through the time setting pinion 45, the hours disk 7 and the gear wheel.
- the release disk 5 being free, it rotates due to the meshing between the barrel 11 and the center wheel 28 so that the time setting mechanism neither drives the barrel 11 nor the gear 15, 16 in rotation with respect to the minute disc 4.
- Such a clutch is reliable and robust, and does not require adjustment of friction during assembly of the movement.
- the arms 59 are elastic so that, in the event of shock received by the movement during its normal operation, the jumper 64 allows a tooth to pass through the star 62 and thus to avoid breakage at the barrel 11 and the work train 28, 15, 16.
- the locking device 55-67 is particularly advantageous because, due to the gear reduction produced by the gear formed by the pinion 67 and the toothing 5a of the rotary member to be blocked (disengaging disc 5), it makes it possible to block the rotating member effectively and robustly even if it has a high inertia.
- this locking device provides protection against shocks.
- the jumper 64 could be a leaf spring comprising at its free end the bearing zone 63 and the pin 66.
- the lever of command 55 could be removed and the blocker 58 could be directly in contact with the pull tab 49.
- the release disc 5 could be replaced by a train which would connect the mobile center 28 to the pinion 67 integral with the star 62.
- the indicator hands 26, 37 could be printed on the respective disks 4, 7.
- Another modification could be to invert the functions of the minute disk 4 and the disk hours 7, that is to say to to cause the disc 4 to rotate at a rate of one revolution per twelve hours to indicate the hours and the disc 7 rotates at a rate of one revolution per hour to indicate the minutes.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Le mouvement d'horlogerie comprend un bâti (1) ; une première denture (28a) et une deuxième denture (28b) qui sont fixes par rapport au bâti (1) en fonctionnement normal du mouvement d'horlogerie ; un premier disque transparent (4) monté pivotant par rapport au bâti (1) autour d'un axe (A) perpendiculaire au plan du bâti (1), le premier disque transparent (4) portant un barillet (11), un premier rouage (15, 16) et un organe réglant (17, 18, 19), le barillet (11) engrenant avec la première denture (28a) de sorte que le désarmage du barillet (11) entraîne le premier disque transparent (4) en rotation autour dudit axe (A), le premier rouage (15, 16) engrenant avec la deuxième denture (28b) de sorte que la rotation du premier disque transparent (4) entraîne le premier rouage (15, 16) en rotation par rapport au premier disque transparent (4) pour entraîner l'organe réglant (17, 18, 19) ; un organe d'affichage d'une première grandeur horaire (26) solidaire du premier disque transparent (4) ; et un organe d'affichage d'une deuxième grandeur horaire (37) relié cinématiquement au premier disque transparent (4). Le mouvement est caractérisé en ce que le bâti (1) présente une ouverture traversante (8) le long dudit axe (A) dans laquelle est situé le premier disque transparent (4) ; l'organe d'affichage de la deuxième grandeur horaire (37) est solidaire d'un deuxième disque transparent (7) monté pivotant autour dudit axe (A) dans l'ouverture traversante (8) ; le premier disque transparent (4) et le deuxième disque transparent (7) sont chacun munis d'une denture périphérique (4a, 7a) ; et les dentures périphériques (4a, 7a) du premier disque transparent (4) et du deuxième disque transparent (7) sont reliées l'une à l'autre par un deuxième rouage (38) situé dans le bâti (1), hors de l'ouverture traversante (8).The watch movement comprises a frame (1); a first toothing (28a) and a second toothing (28b) which are fixed relative to the frame (1) in normal operation of the watch movement; a first transparent disc (4) pivotally mounted relative to the frame (1) about an axis (A) perpendicular to the plane of the frame (1), the first transparent disc (4) carrying a barrel (11), a first gear (15, 16) and a regulating member (17, 18, 19), the barrel (11) meshing with the first toothing (28a) so that the disarming of the barrel (11) drives the first transparent disk (4) in rotation about said axis (A), the first gear (15, 16) meshing with the second toothing (28b) so that the rotation of the first transparent disk (4) drives the first gear (15, 16) in rotation relative to the first gear transparent disc (4) for driving the regulating member (17, 18, 19); a display member of a first hour size (26) integral with the first transparent disk (4); and a second time display member (37) kinematically connected to the first transparent disk (4). The movement is characterized in that the frame (1) has a through opening (8) along said axis (A) in which is located the first transparent disk (4); the second time display member (37) is integral with a second transparent disc (7) pivotally mounted about said axis (A) in the through opening (8); the first transparent disk (4) and the second transparent disk (7) are each provided with a peripheral toothing (4a, 7a); and the peripheral teeth (4a, 7a) of the first transparent disk (4) and of the second transparent disk (7) are connected to one another by a second wheel (38) located in the frame (1), out of the through opening (8).
Description
La présente invention concerne un mouvement d'horlogerie, plus particulièrement un mouvement dans lequel le barillet, une partie du rouage de finissage et l'organe réglant sont portés par un support tournant.The present invention relates to a clockwork movement, more particularly to a movement in which the barrel, part of the finishing gear train and the regulating member are carried by a rotating support.
Un tel mouvement est décrit dans le brevet
On connaît également des montres dites « mystérieuses » dans lesquelles les organes rotatifs visibles sont sans liaison apparente avec les parties extérieures fixes de la montre. Ces montres sont particulièrement attractives sur le plan esthétique. Dans le brevet
La présente invention vise à proposer un mouvement d'horlogerie à support tournant dont la structure est compatible avec l'obtention d'un aspect mystérieux.The present invention aims to propose a clockwork with a rotating support whose structure is compatible with obtaining a mysterious appearance.
A cette fin, il est prévu un mouvement d'horlogerie comprenant :
- un bâti,
- une première denture et une deuxième denture qui sont fixes par rapport au bâti en fonctionnement normal du mouvement d'horlogerie,
- un premier disque transparent monté pivotant par rapport au bâti autour d'un axe perpendiculaire au plan du bâti, le premier disque transparent portant un barillet, un premier rouage et un organe réglant, le barillet engrenant avec la première denture de sorte que le désarmage du barillet entraîne le premier disque transparent en rotation autour dudit axe, le premier rouage engrenant avec la deuxième denture de sorte que la rotation du premier disque transparent entraîne le premier rouage en rotation par rapport au premier disque transparent pour entraîner l'organe réglant,
- un organe d'affichage d'une première grandeur horaire solidaire du premier disque transparent, et
- un organe d'affichage d'une deuxième grandeur horaire relié cinématiquement au premier disque transparent,
caractérisé en ce que - le bâti présente une ouverture traversante le long dudit axe dans laquelle est situé le premier disque transparent,
- l'organe d'affichage de la deuxième grandeur horaire est solidaire d'un deuxième disque transparent monté pivotant autour dudit axe dans l'ouverture traversante,
- le premier disque transparent et le deuxième disque transparent sont chacun munis d'une denture périphérique, et
- les dentures périphériques du premier disque transparent et du deuxième disque transparent sont reliées l'une à l'autre par un deuxième rouage situé dans le bâti, hors de l'ouverture traversante.
- a frame,
- a first toothing and a second toothing that are fixed relative to the frame in normal operation of the watch movement,
- a first transparent disk pivotally mounted relative to the frame about an axis perpendicular to the plane of the frame, the first transparent disc carrying a barrel, a first gear and a regulating member, the barrel meshing with the first toothing so that the disarming of the barrel drives the first transparent disk in rotation about said axis, the first gear meshing with the second toothing so that the rotation of the first transparent disk causes the first gear in rotation relative to the first transparent disk to drive the regulating member,
- a display member of a first hour size integral with the first transparent disk, and
- a second time display member kinematically connected to the first transparent disk,
characterized in that - the frame has a through opening along said axis in which is located the first transparent disk,
- the display member of the second hourly magnitude is secured to a second transparent disk pivotally mounted about said axis in the through opening,
- the first transparent disk and the second transparent disk are each provided with a peripheral toothing, and
- the peripheral teeth of the first transparent disk and the second transparent disk are connected to one another by a second wheel located in the frame, out of the through opening.
De préférence, les première et deuxième dentures sont situées dans la partie centrale de l'ouverture traversante.Preferably, the first and second teeth are located in the central portion of the through opening.
Le premier rouage est typiquement une partie du rouage de finissage du mouvement. Il peut comprendre un mobile de moyenne engrenant avec la deuxième denture et un mobile de seconde engrenant avec le mobile de moyenne et avec un mobile d'échappement de l'organe réglant.The first wheel is typically a part of the finishing gear of the movement. It may comprise a mobile of average meshing with the second toothing and a mobile of second meshing with the mobile of average and with an escape mobile of the regulating organ.
Les première et deuxième dentures sont typiquement distinctes mais, dans un mode de réalisation particulier, elles peuvent être une seule et même denture.The first and second teeth are typically distinct but, in a particular embodiment, they may be one and the same toothing.
Le premier disque transparent et le deuxième disque transparent peuvent être reliés à un mécanisme de mise à l'heure monté dans le bâti, hors de l'ouverture traversante.The first transparent disk and the second transparent disk can be connected to a time setting mechanism mounted in the frame, out of the through opening.
De préférence, le diamètre de chacune des dentures périphériques du premier disque transparent et du deuxième disque transparent est supérieur au diamètre de l'ouverture traversante.Preferably, the diameter of each of the peripheral teeth of the first transparent disk and the second transparent disk is greater than the diameter of the through opening.
Le premier disque transparent et le deuxième disque transparent peuvent être en saphir.The first transparent disk and the second transparent disk may be sapphire.
De préférence, l'organe d'affichage de la première grandeur horaire est un organe indicateur des minutes et l'organe d'affichage de la deuxième grandeur horaire est un organe indicateur des heures.Preferably, the display member of the first hour size is a minute indicator member and the second time scale display member is a time indicator member.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :
- la
figure 1 est une vue en perspective de dessus d'un mouvement d'horlogerie selon un mode de réalisation préféré de l'invention ; - la
figure 2 est une vue similaire à celle de lafigure 1 mais dans laquelle des ponts d'un bâti du mouvement d'horlogerie ont été enlevés ; - la
figure 3 est une vue en perspective coupée du mouvement illustré auxfigures 1 et2 ; - la
figure 4 est une vue en perspective d'un mécanisme de remontage du mouvement illustré auxfigures 1 à 3 ; - la
figure 5 est une vue en perspective d'une partie du mouvement illustré auxfigures 1 à 3 , montrant notamment la liaison entre l'affichage des heures et l'affichage des minutes ainsi qu'une partie d'un mécanisme de mise à l'heure ; - la
figure 6 est une vue en perspective partielle du mouvement illustré auxfigures 1 à 3 , montrant notamment un dispositif de blocage ; et - les
figures 7 à 9 sont des vues planes montrant notamment le dispositif de blocage dans trois positions différentes.
- the
figure 1 is a perspective view from above of a clockwork according to a preferred embodiment of the invention; - the
figure 2 is a view similar to that of thefigure 1 but in which bridges of a frame of the watch movement have been removed; - the
figure 3 is a cut perspective view of the movement shown infigures 1 and2 ; - the
figure 4 is a perspective view of a mechanism for winding the movement illustrated inFigures 1 to 3 ; - the
figure 5 is a perspective view of a part of the movement shown atFigures 1 to 3 , in particular showing the connection between the display of the hours and the display of the minutes as well as a part of a time-setting mechanism; - the
figure 6 is a partial perspective view of the movement shown inFigures 1 to 3 , in particular showing a blocking device; and - the
Figures 7 to 9 are plan views showing in particular the locking device in three different positions.
En référence aux
Le disque 4, dit « disque des minutes » ou « disque de support », est monté dans l'ouverture traversante 8 par l'intermédiaire d'un roulement, typiquement un roulement à billes. La bague extérieure 9 du roulement est fixée à la platine 2 et fait ainsi partie du bâti 1. La bague intérieure 10 du roulement est fixée autour de la périphérie du disque des minutes 4, par exemple par collage ou chassage, et la denture 4a est fixée sur cette bague intérieure 10, par exemple par vissage. Sur le disque des minutes 4, dans l'ouverture traversante 8, sont montés de manière décentrée le barillet, une partie du rouage de finissage et l'organe réglant du mouvement. De manière bien connue en soi, le barillet, désigné par le repère 11, comprend un tambour de barillet 12 muni d'une denture 13 à sa périphérie et logeant un ressort moteur, le tambour 12 étant monté autour d'un arbre de barillet 14. Ladite partie du rouage de finissage comprend un mobile de moyenne 15 et un mobile de seconde 16. L'organe réglant comprend un balancier-spiral 17 et un échappement, l'échappement comprenant un mobile d'échappement 18 et une ancre 19. La roue du mobile de moyenne 15 engrène avec le pignon du mobile de seconde 16, dont la roue engrène avec le pignon du mobile d'échappement 18. Des trous dans le disque des minutes 4 reçoivent des pierres 20 dans lesquelles pivotent des pivots de l'arbre de barillet 14 et des mobiles de moyenne, de seconde et d'échappement 15, 16, 18. Les pivots opposés de l'arbre de barillet 14 et des mobiles de moyenne, de seconde et d'échappement 15, 16, 18 pivotent dans des pierres 21 situées dans des trous que comportent des ponts fixés au disque des minutes 4 par l'intermédiaire de piliers 22. Dans l'exemple illustré, lesdits ponts comprennent un pont de rouage et de barillet 23, deux ponts de balancier 24 recevant respectivement les deux pivots de l'axe du balancier et un pont d'ancre 25. En fonctionnement normal (horométrique) du mouvement, le disque des minutes 4 est entraîné à raison d'un tour par heure. Une aiguille indicatrice des minutes 26 est solidaire du disque des minutes 4. Cette aiguille 26 est par exemple en une seule pièce avec l'un des ponts 23, 24, à savoir le pont de rouage et de barillet 23, comme visible sur les figures. Un contrepoids 27 (cf.
Le disque 5, dit « disque de débrayage », reste fixe pendant le fonctionnement normal du mouvement et porte le mobile de centre 28 du rouage de finissage, situé dans la partie centrale de l'ouverture traversante 8 le long de l'axe A. Le mobile de centre 28 est par exemple fixé au moyen d'une vis 29 à une bague métallique 30 chassée ou collée dans un trou central du disque de débrayage 5. Le disque des minutes 4 pivote autour de ce mobile de centre 28. Le mobile de centre 28 comprend un pignon de centre 28a et une roue de centre 28b solidaires l'un de l'autre. La denture du pignon de centre 28a est en prise avec la denture 13 du barillet 11. La denture de la roue de centre 28b est, elle, en prise avec la denture du pignon du mobile de moyenne 15. Dans une variante, le mobile de centre 28 pourrait comporter une seule denture qui serait en prise à la fois avec la denture 13 du barillet 11 et avec la denture du pignon du mobile de moyenne 15. Le disque de débrayage 5 est associé à un mécanisme de mise à l'heure qui sera décrit plus loin.The
De manière classique en soi, l'arbre 14 du barillet 11 porte un rochet 31 (cf. notamment
Le disque 7 (cf.
Les dentures du pignon de centre 28a et du barillet 11 sont choisies pour que le désarmage du barillet 11, plus exactement de son ressort moteur, entraîne le disque des minutes 4 en rotation autour de l'axe A à la vitesse précitée d'un tour par heure de manière à indiquer les minutes par l'aiguille des minutes 26 solidaire du disque des minutes 4. Les dentures des mobiles 39, 40, 41 du rouage de minuterie 38 sont choisies pour que la rotation du disque des minutes 4 fasse tourner le disque des heures 7 à la vitesse précitée d'un tour par 12 heures, de manière à indiquer les heures par l'aiguille des heures 37 solidaire du disque des heures 7. Par l'engrènement entre la roue de centre 28b et le mobile de moyenne 15, la rotation du disque des minutes 4 fait aussi tourner le rouage de finissage 28, 15, 16 par rapport audit disque 4, permettant au rouage de finissage d'entraîner l'organe réglant 17, 18, 19.The toothings of the
Comme montré aux
Outre le rochet 31, la roue intermédiaire 33 et le disque de remontage 6, le mécanisme de remontage comprend (cf.
Plus précisément, dans la position P3 une rotation de la tige de remontoir 42 dans ledit sens prédéterminé fait tourner le pignon de remontoir 43 qui, par l'intermédiaire de renvois 53 (cf.
Le mécanisme de mise à l'heure comprend la tige de remontoir 42, avec ses éléments 44, 46, 49 associés, et le pignon de mise à l'heure 45. Ce dernier engrène avec la denture 7a portée par le disque des heures 7 (cf.
Le dispositif de blocage est illustré aux
La position angulaire du bloqueur 58 est commandée par le levier de commande 55, lui-même commandé par la tirette 49, elle-même commandée par la position axiale de la tige de remontoir 42. Dans les positions P1 et P3 de la tige de remontoir 42 (cf.
De préférence, les bras 59 sont élastiques pour, en cas de choc reçu par le mouvement pendant son fonctionnement normal, permettre au sautoir 64 de laisser passer une dent de l'étoile 62 et éviter ainsi de la casse au niveau du barillet 11 et du rouage de finissage 28, 15, 16.Preferably, the
A la place du dispositif de blocage 55-67 tel que décrit ci-dessus, on pourrait utiliser un dispositif de blocage connu en soi, tel qu'un dispositif à patins de freinage. Cependant, le dispositif de blocage 55-67 est particulièrement avantageux car, du fait de la démultiplication que produit l'engrenage formé par le pignon 67 et la denture 5a de l'organe rotatif à bloquer (disque de débrayage 5), il permet de bloquer l'organe rotatif de manière efficace et robuste même si celui-ci a une grande inertie. De plus, par ses bras élastiques 59, ce dispositif de blocage assure une protection contre les chocs.Instead of the locking device 55-67 as described above, it would be possible to use a locking device known per se, such as a device with braking shoes. However, the blocking device 55-67 is particularly advantageous because, due to the gear reduction produced by the gear formed by the
La présente invention a été décrite ci-dessus à titre d'exemple uniquement. Il va de soi que des modifications pourraient être faites sans sortir du cadre de l'invention revendiquée. Par exemple, au lieu d'être sous la forme d'une bascule sur laquelle agit un ressort de rappel, le sautoir 64 pourrait être un ressort lame comprenant à son extrémité libre la zone d'appui 63 et la goupille 66. Le levier de commande 55 pourrait être supprimé et le bloqueur 58 pourrait être directement en contact avec la tirette 49. Le disque de débrayage 5 pourrait être remplacé par un rouage qui relierait le mobile de centre 28 au pignon 67 solidaire de l'étoile 62. Selon encore une autre modification, les aiguilles indicatrices 26, 37 pourraient être imprimées sur les disques respectifs 4, 7. Encore une autre modification pourrait consister à intervertir les fonctions du disque des minutes 4 et du disque des heures 7, c'est-à-dire à faire en sorte que le disque 4 tourne à raison d'un tour par douze heures pour indiquer les heures et que le disque 7 tourne à raison d'un tour par heure pour indiquer les minutes.The present invention has been described above by way of example only. It goes without saying that modifications could be made without departing from the scope of the claimed invention. For example, instead of being in the form of a rocker on which a return spring acts, the
Claims (8)
caractérisé en ce que
characterized in that
Priority Applications (1)
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EP14182694.1A EP2990879B1 (en) | 2014-08-28 | 2014-08-28 | Clockwork |
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EP14182694.1A EP2990879B1 (en) | 2014-08-28 | 2014-08-28 | Clockwork |
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EP2990879B1 EP2990879B1 (en) | 2016-12-28 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1036485A (en) * | 1912-01-20 | 1912-08-20 | Landau Brothers | Clock. |
CH693833A5 (en) | 1998-10-06 | 2004-02-27 | Christophe Claret Sa | clockwork including a whirlpool. |
WO2013087941A1 (en) * | 2011-12-16 | 2013-06-20 | Ali&Co Geneve Sa | Reversible mystery watch |
CH707326A2 (en) | 2012-12-13 | 2014-06-13 | Cartier Création Studio Sa | Movable horological element used as e.g. disk indicator in a timepiece, comprises gear and metal hub that are formed on transparent portion by additive manufacturing method so that radial tolerance between hole and gear is specific value |
-
2014
- 2014-08-28 EP EP14182694.1A patent/EP2990879B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1036485A (en) * | 1912-01-20 | 1912-08-20 | Landau Brothers | Clock. |
CH693833A5 (en) | 1998-10-06 | 2004-02-27 | Christophe Claret Sa | clockwork including a whirlpool. |
WO2013087941A1 (en) * | 2011-12-16 | 2013-06-20 | Ali&Co Geneve Sa | Reversible mystery watch |
CH707326A2 (en) | 2012-12-13 | 2014-06-13 | Cartier Création Studio Sa | Movable horological element used as e.g. disk indicator in a timepiece, comprises gear and metal hub that are formed on transparent portion by additive manufacturing method so that radial tolerance between hole and gear is specific value |
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