EP2765463B1 - Mechanism for transmitting axial and rotary movements between two offset staffs and timepiece comprising said mechanism - Google Patents
Mechanism for transmitting axial and rotary movements between two offset staffs and timepiece comprising said mechanism Download PDFInfo
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- EP2765463B1 EP2765463B1 EP14151247.5A EP14151247A EP2765463B1 EP 2765463 B1 EP2765463 B1 EP 2765463B1 EP 14151247 A EP14151247 A EP 14151247A EP 2765463 B1 EP2765463 B1 EP 2765463B1
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- connecting piece
- connection piece
- elastic
- transmission mechanism
- winding
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- 230000007246 mechanism Effects 0.000 title claims description 48
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 69
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000031968 Cadaver Diseases 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
- G04B37/066—Divided stem (tige brisee)
Definitions
- the present invention relates to a mechanism for transmitting axial and rotary movements between two offset axes finding a particular application in a mechanism for setting the time and winding of a timepiece and more particularly to such a mechanism comprising a crown of winding operating a winding and setting time.
- the present invention relates to such a mechanism whose winding stem and setting time is in two parts of axes located in parallel planes but offset with respect to each other.
- Such mechanisms of winding and setting time rod stem two offset parts are particularly useful for complicated movements, including modular, because in such movements the winding stem is offset from the median plane of the movement. which is a disadvantage from the practical and especially aesthetic point of view.
- the incumbent has developed such a mechanism for transmitting axial and rotary movements between two axes, in particular a winding and setting mechanism comprising a winding rod in two parts of axes located in parallel planes kinematically connected in rotation and in translation but which avoids a reversal of the direction of rotation of the two parts of the winding rod and which facilitates the casing of the movement in the watch case.
- This mechanism comprises a movable assembly movable axially, the second portion of the rod carrying a second pinion and being arranged to be pivoted on said movable assembly but axially integral with the mobile assembly; the first portion of the rod being arranged to be pivoted on the movable assembly but axially integral therewith is secured to a first pinion; an odd number of pivots rotated on the moving assembly kinematically connecting the first pinion to the second pinion.
- this mechanism has a disadvantage that is its size because the movable assembly consists of two plates secured together and in parallel planes using rivets. This moving assembly is necessarily thick and requires a large space between the middle of the watch case and movement. Another disadvantage of this construction is that it requires the use of a casing ring.
- the transmission mechanism according to the invention aims to obviate the disadvantages of existing similar mechanisms.
- the object of the present invention is to provide a mechanism for transmitting axial and rotary movements between two parts of an offset shaft having a movable assembly consisting of a preferably planar connecting piece comprising two elements, at least one is elastic forming with the body of this connecting piece two bearings; each of the portions of said rod having an end carrying a pinion and being arranged to be pivoted in one of said two bearings.
- This mechanism is distinguished by the fact that one or the elastic elements has a locking extension terminated by a hook cooperating with a locking formation of the body of said connecting piece; and in that when the hook is engaged in the locking formation or the two elastic members are locked in the operating position can no longer deviate from the body of the connecting piece.
- the transmission mechanism equips a timepiece which comprises a bottom 1, a caseband 2 and an ice 3 inside which is mounted a clockwork movement 4 equipped with an additional module 5 located between the movement 4 and a dial 7.
- the first part 8 of the winding stem, part of the movement 4 is located much lower than the median plane of this timepiece because of the extra thickness due to the module 5.
- the first part 8 of the stem of winding allows to go up by a conventional wheel barrel movement when this part 8 of the winding stem is in the winding position and to proceed to the time when it is in the position of setting time traditional.
- the middle part 2 is crossed by a tube 6 whose axis is situated in the median plane of the timepiece in which the second part 9 of the winding stem slides and rotates, the outer end of which has a thread 10 serving to fix the hub 11 of a winding crown.
- the outer end of the first portion 8 of the winding stem is formed of a first pinion 13 from a workpiece with this first portion 8 of the winding stem. In the immediate vicinity of this first pinion 13 this first portion 8 of the winding stem has a groove 14. This outer end of the first portion 8 of the rod, formed by the first pinion 13, is free and does not cooperate in any way with the middle 2 of the box shows what greatly facilitates device assembly and after-sales service operations.
- the inner end of the second portion 9 of the winding stem comprises a guide pin 15 and a stop 16 from a workpiece with this second portion of the winding stem.
- This inner end of this second portion 9 of the winding stem further comprises a second pinion 17 coming from a workpiece with this second portion 9 of the winding stem separated from the abutment 16 by a groove 18.
- the mechanism for transmitting axial and rotary movements between the two parts 8, 9 of the winding stem further comprises a mobile link assembly consisting of a preferably planar piece 19 having a general shape in an oval.
- the thickness of this connecting piece 19 corresponds to the width of the grooves 14 and 18 of the first 8 and second 9 parts of the winding stem.
- This connecting piece 19 comprises a bore 20 receiving the axis of a return 21 pivoted on this connecting piece 19.
- This connecting piece 19, plane in the illustrated example, comprises a rigid central body 22 and a first element 23 formed by an arm whose end is integral, generally coming from a workpiece, with the rigid central body 22.
- the free end of this first elastic element comprises a first cylindrical face 24 facing a second cylindrical face 25 carried by the rigid central body 22 of the connecting piece 19.
- the first 24 and second 25 cylindrical surfaces of this first element or arm 23 constitute a bearing receiving the outer end of the first rod portion 8.
- This first element or arm 23 may be rigid or elastic for lateral introduction of the first portion 8 of the rod into its bearing 24, 25.
- this first element or arm 23 When this first element or arm 23 is elastic, it comprises a bearing surface 26 which, as will be seen below, prevents, in the locked position of the connecting piece 19, any separation of this first elastic arm from the rigid central body 22 of the connecting piece 19.
- the free end of the first elastic arm 23 further comprises a first oblique face 27 facing a second oblique face 28 carried by the rigid central body 22 of the connecting piece 19 and forming with the first oblique face 27 of the first arm elastically an insertion slide of the groove 14 of the first rod portion 8 in its bearing formed by the first and second cylindrical surfaces 24, 25.
- the bearing of the first portion 8 of the rod may be formed by a bore formed in the rigid body 22 replacing the cylindrical surfaces 24 and 25.
- the oblique surfaces 27, 28 are removed and the first portion 8 of the rod comprises a first pinion 13 attached, fixed to the end of this first portion 8 of the rod after the inner end of the it has been threaded into said piercing of the rigid body 22.
- This connecting piece 19 further comprises a second element or elastic arm 30 integral, or integrally, with the rigid central portion 22 of this connecting piece 19 by one of its ends.
- the free end of this second elastic arm 30 comprises a head 29 having a third cylindrical face 31 facing a fourth cylindrical face 32 carried by the rigid central body 22 of the connecting piece 19 .
- These third and fourth faces cylindrical 31, 32 form a bearing for the second portion 9 of the rod and fit into the groove 18 of the second portion of rod 9.
- the second portion 9 of the rod is pivoted on the connecting piece and axially secured of it.
- the first gear 13 meshes with the gear 21 which itself meshes with the second gear 17 thus kinematically connecting the first shaft portion 8 to the second shaft portion 9; these two rod portions 8, 9 are also secured axially by the connecting piece 19.
- the second portion 9 of the rod screwed into the hub 11 of winding crown is guided in the tube 6 and its inner end has no need to be guided in the movement 4.
- the head 29 of the second elastic arm 30 has a third oblique face 33 facing a fourth oblique face 34 carried by the rigid central body 22 of the connecting piece 19.
- These third and fourth oblique faces 33, 34 form a slide introducing the groove 18 of the second portion 9 of the rod into the bearing formed by the third and fourth cylindrical surfaces 31, 32.
- the head 29 of the second element or elastic arm 30 is integral with a locking extension 35 surrounding the rigid central body 22 and the first elastic arm 23 to end with a hook 36 cooperating with a locking formation 37 carried by the central body 22 near the root of the first elastic arm 23 is its end connected to the rigid central body 22.
- the portion of the locking extension 35 located in front of the rigid central body 22 and the free end of the first elastic arm household an empty portion 38 of sufficient size to successively introduce the first and second pinions 13, 17 during their mounting on the connecting piece 19.
- this first portion 8 of the winding stem is placed perpendicularly to the plane of the connecting piece 19 so that its groove 14 is opposite the first and second oblique faces 27, 28 of the connecting piece and then pushing the first portion 8 of the winding stem towards the bearing formed by the first and second cylindrical surfaces 24, 25 of the connecting piece 19.
- the resilient support 23 s separates from the body of the connecting piece, allows the first part 8 of the winding stem to penetrate into the bearing formed by the first and second cylindrical surfaces 24, 25. The resilient support 23 resumes its position and maintains the first portion 8 of the winding rod assembled to the connecting piece.
- the assembly of the first part 8 of the winding stem on the connecting piece 19 is easy and fast, snap-fastening, and allows disassembly just as easy, especially since the free outer end of this first part 8 of the stem does not need to cooperate with the middle of the watch case.
- the second part 9 of the winding stem can be assembled to the connecting piece 19 by clipping, positioning the groove 18 of this second part 9 of the winding stem between the third and fourth oblique faces 33, 34 and pushes the second part of the winding stem in the bearing formed by the third and fourth cylindrical surfaces 31, 32 which by elastically moving the elastic arm 30 of the connecting piece is coupled thereto by snapping.
- the second gear 17 of the second part of the winding stem meshes with the gear 21.
- the second part 9 of the winding stem is thus pivoted on the connecting piece 19 while being fixed axially thereto. , the edge of the connecting piece 19 to the right of the third and fourth cylindrical surfaces 31, 32 being housed in the groove 18 of the second portion 9 of the winding stem.
- This connecting piece 19 thus comprises in this embodiment two elastically deformable elements, the arms 23 and 30.
- the first elastic arm 23 abuts by its bearing surface 26 against the inner slice of the locking extension 35 thus avoiding any elastic displacement of said first elastic arm.
- the locking extension 35 holds the head 29 of the second elastic arm in the service position.
- the two resilient arms 23, 30 thus being locked or locked the spacing of the rod portions 8, 9 is fixed and whatever the torque applied by the rotation of the winding crown and transmitted by the pinions 13, 17 and the return 21 the transmission of the rotation is executed and can not cause the disengagement of said gears and return.
- the first part 8 of the rod can be extracted laterally from the movement and separated from the connecting piece 19.
- first 8 and second 9 parts of the winding stem are each in one piece however in variants the first 13 and second 17 gears could be reported on their respective rod portion.
- the connecting piece 19 is made of spring steel but another material could be used as long as it allows the coupling of this connecting piece 19 by snapping to the first 8 and second 9 parts of the winding stem.
- this mechanism has significant advantages because its overall dimensions, particularly in the direction perpendicular to the axes of the parts 8, 9 of the winding stem, is very small because the connecting piece is not very thick. In addition, its construction and assembly are easy and the two parts of the winding stem rotate in the same direction and allow to transmit a high torque.
- Such a mechanism for transmitting axial and rotary movements between two axes located in two parallel planes can be applied in timepieces having a movement alone or with one or more mechanisms additional for either winding and time setting, or for activating a calendar or alarm function.
- this reference 21 could be constituted by a ring gear internally meshing with the gears of the first and second winding stem portion pivoted on the connecting piece.
- the mechanism described can also be used in non-horological applications wherever it is necessary to transmit between two axes, located in parallel planes, axial and rotary movements and high torques.
- the transmission mechanism does not have a gear 21, the first gear 13 meshes directly with the second gear 17.
- references 21 there could be several references 21 forming a kinematic chain connecting the first pinion 13 to the second pinion 17, all these references 21 being pivoted on the single connecting piece 19.
- the connecting piece 19 is preferably flat and made in a single piece of manufacture.
- this transmission mechanism consists in the configuration of the locking extension 35 which, when the hook 36 is engaged with the locking formation 37, prevents any elastic deformation of the first and second resilient arms 23 , 30 under the effect of a thrust exerted by the parts of rods 8, 9.
- the arms As the elastic members 23, 30 are thus locked, the spacing between the rod portions 8, 9 is set so that the bearings 24, 25 and 31, 32 function as fixed bearings.
- this arm does not necessarily have a bearing surface 26.
- extension 35 can be fixed on the end of the first arm 23, rigid or elastic and come to surround the rigid body 22 and the second elastic arm 30 to come to hook on a locking formation secured to the rigid body 22 to near the root of the second arm 30.
- the second elastic arm 30 would include the bearing surface 26 to prevent any elastic displacement thereof once the extension 35 locked on the rigid body 22.
- the present invention further relates to a timepiece comprising a clockwork movement and optionally one or more additional modules incorporating the transmission mechanism described above.
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- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
Description
La présente invention se rapporte à un mécanisme de transmission de mouvements axiaux et rotatifs entre deux axes décalés trouvant une application particulière dans un mécanisme de mise à l'heure et de remontage d'une pièce d'horlogerie et plus particulièrement à un tel mécanisme comportant une couronne de remontoir actionnant une tige de remontoir et de mise à l'heure.The present invention relates to a mechanism for transmitting axial and rotary movements between two offset axes finding a particular application in a mechanism for setting the time and winding of a timepiece and more particularly to such a mechanism comprising a crown of winding operating a winding and setting time.
Plus particulièrement, la présente invention a trait à un tel mécanisme dont la tige de remontoir et de mise à l'heure est en deux parties d'axes situés dans des plans parallèles mais décalées l'une par rapport à l'autre. De tels mécanismes de remontage et de mise à l'heure à tige en deux pièces décalées sont particulièrement utiles pour des mouvements à complications, notamment modulaires, car dans de tels mouvements la tige de remontoir se trouve décalée par rapport au plan médian du mouvement ce qui est un inconvénient du point de vue pratique et surtout esthétique.More particularly, the present invention relates to such a mechanism whose winding stem and setting time is in two parts of axes located in parallel planes but offset with respect to each other. Such mechanisms of winding and setting time rod stem two offset parts are particularly useful for complicated movements, including modular, because in such movements the winding stem is offset from the median plane of the movement. which is a disadvantage from the practical and especially aesthetic point of view.
On connaît un tel dispositif de remontage et de mise à l'heure du document
Pour pallier ces inconvénients la titulaire a développé un tel mécanisme de transmission de mouvement axiaux et rotatifs entre deux axes, notamment d'un mécanisme de remontage et de mise à l'heure comportant une tige de remontage en deux parties d'axes situés dans des plans parallèles reliées cinématiquement en rotation et en translation mais qui évite une inversion du sens de rotation des deux parties de la tige de remontage et qui facilite l'emboîtage du mouvement dans la boîte de montre.In order to overcome these drawbacks, the incumbent has developed such a mechanism for transmitting axial and rotary movements between two axes, in particular a winding and setting mechanism comprising a winding rod in two parts of axes located in parallel planes kinematically connected in rotation and in translation but which avoids a reversal of the direction of rotation of the two parts of the winding rod and which facilitates the casing of the movement in the watch case.
Ce mécanisme, décrit dans le document
Ce mécanisme comporte toutefois un inconvénient qui est son encombrement car l'ensemble mobile est constitué de deux plaques fixées ensemble et dans des plans parallèles à l'aide de rivets. Cet ensemble mobile est donc forcément épais et nécessite un espace important entre la carrure de la boîte de montre et le mouvement. Un autre inconvénient de cette construction est qu'elle nécessite l'utilisation d'un cercle d'emboîtage.However, this mechanism has a disadvantage that is its size because the movable assembly consists of two plates secured together and in parallel planes using rivets. This moving assembly is necessarily thick and requires a large space between the middle of the watch case and movement. Another disadvantage of this construction is that it requires the use of a casing ring.
La titulaire a alors développé un mécanisme décrit dans le document
Lorsque le couple à transmettre par la tige de remontoir devient important, par exemple si le couple au barillet est fort et que le rapport de démultiplication entre le rochet du barillet et la tige de remontoir est faible, le bras élastique est déplacé contre son élasticité propre et le pignon porté par la seconde partie de la tige portant la couronne de remontoir peut échapper au renvoi avec lequel il engrène.When the torque to be transmitted by the winding stem becomes important, for example if the torque in the barrel is strong and the gear ratio between the ratchet of the barrel and the winding stem is low, the elastic arm is moved against its own elasticity and the pinion carried by the second part of the rod carrying the winding crown can escape the return with which it meshes.
Le mécanisme de transmission selon l'invention a pour but d'obvier aux inconvénients des mécanismes semblables existants.The transmission mechanism according to the invention aims to obviate the disadvantages of existing similar mechanisms.
La présente invention a pour objet la réalisation d'un mécanisme de transmission de mouvements axiaux et rotatifs entre deux parties d'une tige d'axes décalés comportant un ensemble mobile constitué d'une pièce de liaison de préférence plane comportant deux éléments dont au moins un est élastique formant avec le corps de cette pièce de liaison deux paliers; chacune des parties de ladite tige comportant une extrémité portant un pignon et étant agencée pour être pivotée dans l'un desdits deux paliers. Ce mécanisme se distingue par le fait qu'un du ou des éléments élastiques présente un prolongement de verrouillage terminé par un crochet coopérant avec une formation de verrouillage du corps de ladite pièce de liaison; et par le fait que lorsque ce crochet est engagé dans la formation de verrouillage le ou les deux éléments élastiques sont bloqués en position de service ne pouvant plus s'écarter du corps de la pièce de liaison.The object of the present invention is to provide a mechanism for transmitting axial and rotary movements between two parts of an offset shaft having a movable assembly consisting of a preferably planar connecting piece comprising two elements, at least one is elastic forming with the body of this connecting piece two bearings; each of the portions of said rod having an end carrying a pinion and being arranged to be pivoted in one of said two bearings. This mechanism is distinguished by the fact that one or the elastic elements has a locking extension terminated by a hook cooperating with a locking formation of the body of said connecting piece; and in that when the hook is engaged in the locking formation or the two elastic members are locked in the operating position can no longer deviate from the body of the connecting piece.
Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution du mécanisme de transmission de mouvements axiaux et rotatifs selon l'invention appliquée à un mécanisme de remontage et de mise à l'heure d'une pièce d'horlogerie.
- La
figure 1 est une vue en perspective de la pièce de liaison plane du mécanisme de transmission. - La
figure 2 est une vue en plan de la pièce de liaison plane illustrée à lafigure 1 . - Les
figures 3 et 4 illustrent en perspective et en plan le mécanisme de transmission en position déverrouillée. - Les
figures 5 et 6 illustrent en perspective et en plan le mécanisme de transmission en position verrouillée. - La
figure 7 est une coupe diamétrale partielle d'une pièce d'horlogerie passant par les axes des deux parties de la tige de remontoir et de mise à l'heure du mécanisme de transmission équipant une pièce d'horlogerie.
- The
figure 1 is a perspective view of the plane connecting piece of the transmission mechanism. - The
figure 2 is a plan view of the plane linkage shown in FIG.figure 1 . - The
Figures 3 and 4 illustrate in perspective and in plan the transmission mechanism in the unlocked position. - The
Figures 5 and 6 illustrate in perspective and in plan the transmission mechanism in locked position. - The
figure 7 is a partial diametrical section of a timepiece passing through the axes of the two parts of the winding stem and setting the time of the transmission mechanism equipping a timepiece.
Dans l'exemple illustré le mécanisme de transmission équipe une pièce d'horlogerie qui comporte un fond 1, une carrure lunette 2 et une glace 3 à l'intérieur de laquelle est monté un mouvement d'horlogerie 4 équipé d'un module additionnel 5 situé entre le mouvement 4 et un cadran 7.In the illustrated example, the transmission mechanism equips a timepiece which comprises a
Comme on le voit sur la
La carrure 2 est traversée par un tube 6 dont l'axe est situé dans le plan médian de la pièce d'horlogerie dans lequel coulisse et tourne la seconde partie 9 de la tige de remontoir dont l'extrémité extérieure comporte un filetage 10 servant à y fixer le moyeu 11 d'une couronne de remontoir.The
L'extrémité extérieure de la première partie 8 de la tige de remontoir est formée d'un premier pignon 13 venu d'une pièce de fabrication avec cette première partie 8 de la tige de remontoir. A proximité immédiate de ce premier pignon 13 cette première partie 8 de la tige de remontoir présente une gorge 14. Cette extrémité extérieure de la première partie 8 de la tige, formée par le premier pignon 13, est libre et ne coopère en aucune façon avec la carrure 2 de la boîte de montre ce qui facilite grandement le montage du dispositif et les opérations de services après-vente.The outer end of the
L'extrémité intérieure de la seconde partie 9 de la tige de remontoir comporte un doigt de guidage 15 et une butée 16 venus d'une pièce de fabrication avec cette seconde partie de la tige de remontoir. Cette extrémité intérieure de cette seconde partie 9 de la tige de remontoir comporte encore un second pignon 17 venu d'une pièce de fabrication avec cette seconde partie 9 de la tige de remontoir séparé de la butée 16 par une gorge 18.The inner end of the
Le mécanisme de transmission de mouvements axiaux et rotatifs entre les deux parties 8, 9 de la tige de remontoir comporte encore un ensemble mobile de liaison constitué d'une pièce 19 de préférence plane présentant une forme générale s'inscrivant dans un ovale. L'épaisseur de cette pièce de liaison 19 correspond à la largeur des gorges 14 et 18 des première 8 et seconde 9 pièces de la tige de remontoir.The mechanism for transmitting axial and rotary movements between the two
Cette pièce de liaison 19 comporte un perçage 20 recevant l'axe d'un renvoi 21 pivoté sur cette pièce de liaison 19.This connecting
Cette pièce de liaison 19, plane dans l'exemple illustré, comporte un corps central rigide 22 et un premier élément 23 formé par un bras dont une extrémité est solidaire, généralement venue d'une pièce de fabrication, avec le corps central rigide 22. L'extrémité libre de ce premier élément élastique comporte une première face cylindrique 24 située en face d'une seconde face cylindrique 25 portée par le corps central rigide 22 de la pièce de liaison 19. Les première 24 et seconde 25 surfaces cylindriques de ce premier élément ou bras 23 constituent un palier recevant l'extrémité externe de la première partie de tige 8. Ces surfaces cylindriques 24, 25 entourant la portion de première tige 8 située dans la gorge 14 de cette première partie de tige 8. Ainsi cette première partie de tige 8 est montée rotativement sur la pièce de liaison 9 et est axialement solidaire de cette pièce de liaison 19.This connecting
Ce premier élément ou bras 23 peut être rigide ou élastique pour une introduction latérale de la première partie 8 de la tige dans son palier 24, 25.This first element or
Lorsque ce premier élément ou bras 23 est élastique il comporte une surface d'appui 26 qui comme on le verra plus loin empêche, en position verrouillée de la pièce de liaison 19, tout écartement de ce premier bras élastique par rapport au corps central rigide 22 de la pièce de liaison 19.When this first element or
L'extrémité libre du premier bras élastique 23 comporte encore une première face oblique 27 située en face d'une seconde face oblique 28 portée par le corps central rigide 22 de la pièce de liaison 19 et formant avec la première face oblique 27 du premier bras élastique une glissière d'insertion de la gorge 14 de la première partie de tige 8 dans son palier formé par les première et seconde surfaces cylindriques 24, 25.The free end of the first
Dans le cas ou le premier élément ou bras 23 est rigide avec le corps rigide 22 de la pièce de liaison 19 le palier de la première partie 8 de la tige peut être formé par un perçage pratiqué dans le corps rigide 22 remplaçant les surfaces cylindriques 24 et 25. Dans ce cas les surfaces obliques 27, 28 sont supprimées et la première partie 8 de la tige comporte un premier pignon 13 rapporté, fixé à l'extrémité de cette première partie 8 de la tige après que l'extrémité interne de celle-ci ait été enfilée dans ledit perçage du corps rigide 22.In the case where the first element or
Cette pièce de liaison 19 comporte encore un second élément ou bras élastique 30 solidaire, ou venu d'une pièce, avec la partie centrale rigide 22 de cette pièce de liaison 19 par l'une de ses extrémités. L'extrémité libre de ce second bras élastique 30 comporte une tête 29 comportant une troisième face cylindrique 31 située en face d'une quatrième face cylindrique 32 portée par le corps central rigide 22 de la pièce de liaison 19.. Ces troisième et quatrième faces cylindriques 31, 32 forment un palier pour la seconde partie 9 de la tige et viennent s'emboîter dans la gorge 18 de cette seconde partie de tige 9. Ainsi la seconde partie 9 de la tige est pivotée sur la pièce de liaison et axialement solidaire de celle-ci.This connecting
Le premier pignon 13 engrène avec le renvoi 21 qui lui même engrène avec le second pignon 17 reliant ainsi cinématiquement la première partie 8 de tige à la seconde partie de tige 9; ces deux parties de tige 8, 9 étant par ailleurs solidaires axialement par la pièce de liaison 19. La seconde partie 9 de la tige vissée dans le moyeu 11 de couronne de remontoir est guidée dans le tube 6 et son extrémité interne n'a pas besoin d'être guidée dans le mouvement 4.The
La tête 29 du second bras élastique 30 comporte une troisième face oblique 33 située en face d'une quatrième face oblique 34 portée par le corps central rigide 22 de la pièce de liaison 19. Ces troisième et quatrième faces obliques 33, 34 forment une glissière d'introduction de la gorge 18 de la seconde partie 9 de la tige dans le palier formé par les troisième et quatrième surfaces cylindriques 31, 32.The
La tête 29 du second élément ou bras élastique 30 est solidaire d'un prolongement de verrouillage 35 entourant le corps central rigide 22 et le premier bras élastique 23 pour se terminer par un crochet 36 coopérant avec une formation de verrouillage 37 portée par le corps central 22 à proximité de la racine du premier bras élastique 23 soit de son extrémité liée à ce corps central rigide 22. La partie de ce prolongement de verrouillage 35 située en face du corps central rigide 22 et de l'extrémité libre du premier bras élastique ménage une partie vide 38 de dimension suffisante pour y introduire successivement les premier et second pignons 13, 17 lors de leur montage sur la pièce de liaison 19.The
Pour assembler la première partie 8 de la tige de remontoir sur la pièce de liaison 19 on place cette première partie 8 de la tige de remontoir perpendiculairement au plan de la pièce de liaison 19 de telle façon que sa gorge 14 soit en regard des première et seconde faces obliques 27, 28 de la pièce de liaison puis on pousse la première partie 8 de la tige de remontoir en direction du palier constitué par les première et seconde surfaces cylindriques 24, 25 de la pièce de liaison 19. Le support élastique 23 s'écarte du corps de la pièce de liaison, laisse pénétrer la première partie 8 de la tige de remontoir dans le palier formé par les première et seconde surfaces cylindriques 24, 25. Le support élastique 23 reprend sa position et maintient la première partie 8 de la tige de remontoir assemblée à la pièce de liaison. Dans cette position le premier pignon 13 de la première partie 8 de la tige de remontoir engrène avec le renvoi 21 pivoté sur cette pièce de liaison. De plus du fait que la pièce de liaison 19 pénètre dans la gorge 14 de la première partie 8 de la tige de remontoir celle-ci est solidaire axialement de la pièce de liaison 19.To assemble the
L'assemblage de la première partie 8 de la tige de remontoir sur la pièce de liaison 19 est facile et rapide, par encliquetage, et permet un démontage tout aussi aisé, notamment du fait que l'extrémité externe libre de cette première partie 8 de la tige n'a pas besoin de coopérer avec la carrure de la boîte de montre.The assembly of the
La seconde partie 9 de la tige de remontoir peut être assemblée à la pièce de liaison 19 par un clipsage, on positionne la gorge 18 de cette seconde partie 9 de la tige de remontoir entre les troisième et quatrième faces obliques 33, 34 et on pousse la seconde partie de la tige de remontoir dans le palier formé par les troisième et quatrième surfaces cylindriques 31, 32 qui en déplaçant élastiquement le bras élastique 30 de la pièce de liaison vient s'accoupler à celle-ci par encliquetage. Ce faisant le second pignon 17 de la seconde partie de la tige de remontoir s'engrène avec le renvoi 21. La seconde partie 9 de la tige de remontoir est ainsi pivotée sur la pièce de liaison 19 tout en étant fixée axialement à celle-ci, la tranche de la pièce de liaison 19 au droit des troisième et quatrième surfaces cylindriques 31, 32 étant logée dans la gorge 18 de la seconde partie 9 de la tige de remontoir.The
En position assemblée (
Comme on le voit sur la
Cette pièce de liaison 19 comporte donc dans cette forme d'exécution deux éléments déformables élastiquement, les bras 23 et 30.This connecting
Le montage et la mise en place du mécanisme décrit dans une pièce d'horlogerie s'effectuent de la manière suivante:
- 1.
Le renvoi 21 est pré-monté et pivoté sur la pièce deliaison 19. - 2.
La première partie 8 de la tige de remontoir est clipsée sur la pièce deliaison 19, comme expliqué plus haut par la déformation élastique du premier bras élastique 23. - 3. Cet ensemble est introduit dans le mouvement 4, l'extrémité interne de la première partie 8 de la tige venant coopérer avec les organes correspondant de ce mouvement.
- 4. Le mouvement 4 de montre muni de cet ensemble est mis en place et fixé dans la carrure 2 de la boîte de montre sans que la première partie 8 de la tige ne coopère de quelle que façon avec ladite carrure 2.
- 5. La pièce de
liaison 19 est orientée angulairement par rotation autour de l'axe de la première partie 8 de la tige de remontoir, pour que son passage élargi ou partie vide 38 soit centré sur letube 6 traversant la carrure 2. - 6. La seconde
partie 9 de la tige de remontoir, avec ou sans sa couronne de remontoir, est introduite latéralement dans letube 6 traversant la carrure 2,sa butée 16 passe dans le passage élargi 38et sa gorge 18 est placée dans le plan de la pièce deliaison 19. - 7. La pièce de liaison est alors pivotée autour de l'axe de la première partie 8 de la tige de remontoir en direction de la seconde partie 9 de cette tige de remontoir de manière à ce que celle-ci soit accouplée par encliquetage sur cette pièce de liaison par déformation élastique du bras élastique 30
- 8.
Le crochet 36 de la prolongation de verrouillage 35 est forcé contre le corpscentral rigide 22 de la pièce deliaison 19 et vient se verrouiller sur la formation de verrouillage 37 de cette pièce deliaison 19 - 9. Le fond 1 de la boîte peut alors être fixé sur la carrure 2.
- 1. The
reference 21 is pre-mounted and pivoted on the connectingpiece 19. - 2. The
first part 8 of the winding stem is clipped onto the connectingpiece 19, as explained above by the elastic deformation of the firstelastic arm 23. - 3. This assembly is introduced into the movement 4, the inner end of the
first portion 8 of the rod cooperating with the corresponding members of this movement. - 4. The watch movement 4 provided with this set is put in place and fixed in the
middle part 2 of the watch case without thefirst part 8 of the rod cooperating in any way with saidmiddle part 2. - 5. The connecting
piece 19 is oriented angularly by rotation about the axis of thefirst portion 8 of the winding stem, so that its widened passage orempty portion 38 is centered on thetube 6 passing through themiddle part 2. - 6. The
second part 9 of the winding stem, with or without its winding crown, is introduced laterally into thetube 6 passing through themiddle part 2, itsstop 16 passes into theenlarged passage 38 and itsgroove 18 is placed in the plane of the connectingpiece 19. - 7. The connecting piece is then pivoted about the axis of the
first portion 8 of the winding stem towards thesecond portion 9 of the winding stem so that it is coupled by snapping on this connecting piece by elastic deformation of theelastic arm 30 - 8. The
hook 36 of the lockingextension 35 is forced against the rigidcentral body 22 of the connectingpiece 19 and is locked on the lockingformation 37 of this connectingpiece 19 - 9. The
bottom 1 of the box can then be fixed on themiddle part 2.
Grâce à la prolongation de verrouillage 35 et à son crochet 36 coopérant avec la formation de verrouillage 37 du corps central rigide 22 de la pièce de liaison 19 une fois le crochet verrouillé, le premier bras élastique 23 bute par sa surface d'appui 26 contre la tranche interne de la prolongation de verrouillage 35 évitant ainsi tout déplacement élastique dudit premier bras élastique. Simultanément la prolongation de verrouillage 35 maintient la tête 29 du second bras élastique en position de service. Les deux bras élastiques 23, 30 étant ainsi bloqués ou verrouillés l'entraxe des parties de tiges 8, 9 est fixé et quel que soit le couple appliqué par la rotation de la couronne de remontoir et transmis par les pignons 13, 17 et le renvoi 21 la transmission de la rotation est exécutée et ne peut pas provoquer le désengagement desdits pignons et renvoi.Thanks to the locking
Pour démonter le mécanisme de transmission il suffit de retirer le fond 1 de la boîte de la pièce d'horlogerie, de décrocher avec un outil le crochet 36 de la formation de verrouillage 37 et de faire pivoter la pièce de liaison 19 et la désaccoupler de la seconde partie 9 de la tige de remontage. Cette seconde partie 9 de la tige de remontage peut alors être extraite latéralement hors de la boîte de montre. Ensuite, le mouvement, la pièce de liaison 19 et la première partie 8 de la tige peuvent être extraits de la carrure 2 perpendiculairement au plan de la boîte de montre la première partie 8 de la tige n'interférant pas avec ladite carrure 2. En effet, l'extrémité externe de cette première partie 8 de la tige, formée du premier pignon 13 est en porte-à-faux n'ayant aucun contact avec la carrure 2.To dismount the transmission mechanism simply remove the
La première partie 8 de la tige peut être extraite latéralement du mouvement et séparée de la pièce de liaison 19.The
Bien entendu il est avantageux que les première 8 et seconde 9 parties de la tige de remontoir soient chacune en une seule pièce toutefois dans des variantes les premier 13 et second 17 pignons pourraient être rapportés sur leur partie de tige respective.Of course it is advantageous that the first 8 and second 9 parts of the winding stem are each in one piece however in variants the first 13 and second 17 gears could be reported on their respective rod portion.
De préférence, la pièce de liaison 19 est réalisée en acier ressort mais un autre matériau pourrait être utilisé pour autant qu'il permette l'accouplement de cette pièce de liaison 19 par encliquetage aux première 8 et seconde 9 parties de la tige de remontoir.Preferably, the connecting
Dans cette réalisation particulière ce mécanisme présente des avantages importants car son encombrement, notamment dans le sens perpendiculaire aux axes des parties 8, 9 de la tige de remontoir, est très réduit la pièce de liaison étant peu épaisse. De plus, sa réalisation et son montage sont aisés et les deux parties de la tige de remontoir tournent dans le même sens et permettent de transmettre un couple élevé.In this particular embodiment, this mechanism has significant advantages because its overall dimensions, particularly in the direction perpendicular to the axes of the
Un tel mécanisme de transmission de mouvement axiaux et rotatifs entre deux axes situés dans deux plans parallèles peut être appliqué dans des pièces d'horlogerie ayant un mouvement seul ou comportant un ou des mécanismes additionnels soit pour le remontage et la mise à l'heure, soit pour l'actionnement d'une fonction de quantième ou de réveil etc.Such a mechanism for transmitting axial and rotary movements between two axes located in two parallel planes can be applied in timepieces having a movement alone or with one or more mechanisms additional for either winding and time setting, or for activating a calendar or alarm function.
Dans une variante le renvoi provoquant l'inversion du mouvement de rotation pour que les deux parties de tige tournent dans le même sens peut-être remplacé par un train d'engrenage comportant un nombre impair de rouages, ceci peut-être nécessaire si la distance séparant les deux plans dans lesquels se trouvent les deux parties de la tige est grande. Dans une autre variante ce renvoi 21 pourrait être constitué par une couronne dentée intérieurement engrenant avec les pignons de la première et de la seconde partie de tige de remontoir pivotée sur la pièce de liaison.In a variant the return causing the inversion of the rotational movement so that the two rod parts rotate in the same direction can be replaced by a gear train having an odd number of wheels, this may be necessary if the distance separating the two planes in which are the two parts of the stem is large. In another variant this
Le mécanisme décrit peut également être utilisé dans des applications non horlogères partout où il s'agit de transmettre entre deux axes, situés dans des plans parallèles, des mouvements axiaux et rotatifs et des couples élevés.The mechanism described can also be used in non-horological applications wherever it is necessary to transmit between two axes, located in parallel planes, axial and rotary movements and high torques.
Dans une variante le mécanisme de transmission ne comporte pas de renvoi 21, le premier pignon 13 engrenant directement avec le second pignon 17.In a variant, the transmission mechanism does not have a
Dans d'autre variante il pourrait y avoir plusieurs renvois 21 formant une chaîne cinématique reliant le premier pignon 13 au second pignon 17, tous ces renvois 21 étant pivotés sur la pièce de liaison unique 19.In another variant there could be
Dans le cas où il n'y a pas de renvoi 21, ou si le nombre de ces renvois est pair, la rotation de la couronne pour une mise à l'heure sera inversée par rapport à ce qui est habituel mais tous les autres avantages du dispositif sont conservés.In the case where there is no
La pièce de liaison 19 est de préférence plane et réalisée en une seule pièce de fabrication.The connecting
Une des particularités ou caractéristiques importantes de ce mécanisme de transmission consiste dans la configuration de la prolongation de verrouillage 35 qui permet, lorsque le crochet 36 est engagé avec la formation de verrouillage 37, d'éviter toute déformation élastique des premier et second bras élastiques 23, 30 sous l'effet d'une poussée exercée par les parties de tiges 8, 9. Les bras élastiques 23, 30 étant ainsi verrouillés l'entraxe entre les parties de tiges 8, 9 est fixé de sorte que les paliers 24, 25 et 31, 32 fonctionnent comme des paliers fixes.One of the important features or characteristics of this transmission mechanism consists in the configuration of the locking
Dans une variante où le premier bras 23 est rigide, ce bras ne comporte pas forcément de surface d'appui 26.In a variant where the
Dans une autre variante la prolongation 35 peut être fixée sur l'extrémité du premier bras 23, rigide ou élastique et venir entourer le corps rigide 22 et le second bras élastique 30 pour venir se crocher sur une formation de verrouillage solidaire du corps rigide 22 à proximité de la racine du second bras 30. Dans ce cas le second bras élastique 30 comporterait la surface d'appui 26 pour empêcher tout déplacement élastique de celui-ci une fois la prolongation 35 verrouillée sur le corps rigide 22.In another variant the
La présente invention a encore pour objet une pièce d'horlogerie comportant un mouvement d'horlogerie et le cas échéant un ou plusieurs modules additionnels incorporant le mécanisme de transmission décrit ci-dessus.The present invention further relates to a timepiece comprising a clockwork movement and optionally one or more additional modules incorporating the transmission mechanism described above.
Il faut remarquer que pour le montage de ce mécanisme de transmission il faut que l'espace vide 38 entre la prolongation de verrouillage 35 et le corps central rigide 22 soit d'une surface supérieure à celle respectivement des premiers 13 et second pignons 17.It should be noted that for the mounting of this transmission mechanism it is necessary that the
Claims (11)
- Mechanism for transmission of axial and rotational movements between two parts (8, 9) of a shaft with offset axes comprising a mobile assembly formed by a connection piece (19) comprising two elements (23, 30), of which at least one is elastic, forming with the rigid central body (22) of this connection piece (19) two bearings (24, 25; 31, 32); each of the parts of said shaft comprising an end supporting a pinion (13, 17) and being arranged to be pivoted in one of said two bearings; characterised in that, in this mechanism, one of the elements (30) has a locking extension terminated by a hook (36) cooperating with a locking formation (37) of the body of said connection piece (19); and in that, when this hook (36) is engaged in the locking formation (37), the elastic element or both elastic elements (23, 30) are held in an operating position unable to move further away from the body (22) of the connection piece (19).
- Transmission mechanism as claimed in claim 1, characterised in that the locking extension (35) extends around the central body (22) and the other element (23) before its free end, formed by the hook (36), engages with the locking formation (37) of the rigid central body (22).
- Transmission mechanism as claimed in claim 2, characterised in that the inner section of the locking extension (37), when said extension is in the locked operating position, comes into contact with an abutment surface (26) on the free end of the other element (23).
- Transmission mechanism as claimed in claim 1, 2 or 3, characterised in that the empty space (38) between the locking extension (35) and the rigid central body (22) of the connection piece (19) is greater than the surface of the first and second pinions (13, 17) respectively.
- Transmission mechanism as claimed in one of the preceding claims, characterised in that the connection piece (19) is planar and has, in plan view, a generally oval shape.
- Transmission mechanism as claimed in one of the preceding claims, characterised in that it comprises at least one setting wheel (21) pivoted on a rigid central part (22) of the connection piece.
- Transmission mechanism as claimed in one of the preceding claims, characterised in that the first and second elements (23, 30) are disposed on the two sides of the rigid central body (22) of the connection piece (19).
- Mechanism as claimed in one of the preceding claims, characterised in that one of the elements (23, 30) is rigid while the other is elastic.
- Mechanism as claimed in one of claims 1 to 7, characterised in that both elements (23, 30) are elastic.
- Mechanism as claimed in one of claims 6 and 7 to 9 when the latter are dependent on claim 6, characterised in that the setting wheel (21) is formed by a pinion.
- Timepiece comprising a transmission mechanism as claimed in one of claims 1 to 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00423/13A CH707555B1 (en) | 2013-02-08 | 2013-02-08 | Mechanism for transmitting axial and rotary movements between two offset axes and a timepiece comprising this mechanism. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2765463A2 EP2765463A2 (en) | 2014-08-13 |
EP2765463A3 EP2765463A3 (en) | 2017-09-13 |
EP2765463B1 true EP2765463B1 (en) | 2019-06-26 |
Family
ID=49943236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14151247.5A Active EP2765463B1 (en) | 2013-02-08 | 2014-01-15 | Mechanism for transmitting axial and rotary movements between two offset staffs and timepiece comprising said mechanism |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2765463B1 (en) |
CH (1) | CH707555B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH709909B1 (en) * | 2014-07-22 | 2018-07-31 | Richemont Int Sa | Time setting and winding mechanism for timepiece. |
CH714602B1 (en) * | 2018-01-30 | 2022-06-30 | Chaumet Horlogerie Sa | Mechanism of a watch provided with a winding stem. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19725884B4 (en) | 1997-06-18 | 2010-04-29 | Chopard International S.A. | Clock with two-piece winding and control shaft |
DE60038282T2 (en) | 2000-03-17 | 2009-03-12 | Dubois & Depraz S.A. | Transmission mechanism for rotary motion and axial movement between two staggered axes |
CH704250B1 (en) | 2010-12-21 | 2015-01-30 | Dubois & Dépraz S A | Transmission mechanism of axial and rotational movements between two offset axes and a timepiece including such a mechanism. |
-
2013
- 2013-02-08 CH CH00423/13A patent/CH707555B1/en unknown
-
2014
- 2014-01-15 EP EP14151247.5A patent/EP2765463B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP2765463A3 (en) | 2017-09-13 |
EP2765463A2 (en) | 2014-08-13 |
CH707555A2 (en) | 2014-08-15 |
CH707555B1 (en) | 2017-05-31 |
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