EP3874331B1 - Oszillierendes gewicht mit variabler geometrie für einen uhrwerkmechanismus - Google Patents

Oszillierendes gewicht mit variabler geometrie für einen uhrwerkmechanismus Download PDF

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Publication number
EP3874331B1
EP3874331B1 EP19798135.0A EP19798135A EP3874331B1 EP 3874331 B1 EP3874331 B1 EP 3874331B1 EP 19798135 A EP19798135 A EP 19798135A EP 3874331 B1 EP3874331 B1 EP 3874331B1
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EP
European Patent Office
Prior art keywords
wheel
rotation
axis
timepiece
watch
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.)
Active
Application number
EP19798135.0A
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English (en)
French (fr)
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EP3874331A1 (de
Inventor
Frédéric Crettex
Pedro DE OLIVEIRA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guenat SA Montres Valgine
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Guenat SA Montres Valgine
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Publication of EP3874331A1 publication Critical patent/EP3874331A1/de
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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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • G04B5/08—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited acting in both directions
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • G04B5/165—Weights consisting of several parts
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/187—Bearing, guide arrangements or suspension allowing movement in more than one plane, e.g. there is more than one moving weight, or more than one plane in which the weight moves, and it can change place relative to the clockwork
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/19—Suspension of the oscillating weight at its centre of rotation

Definitions

  • the present invention relates to a timepiece comprising an oscillating weight with variable geometry for a timepiece mechanism.
  • Oscillating weights for automatic watches are well known and widely used.
  • an oscillating mass makes it possible to ensure the winding of a movement thanks to its oscillations generated by the movements of the wearer of the watch.
  • the mass is pivotally mounted for example by means of a bearing.
  • an inverter ensures the transformation of the reciprocating movement of the mass into a one-way rotary movement.
  • the gear trains of the winding system ensure the connection between the various elements.
  • the rotational drive of the winding train makes it possible to arm a source of energy of the watch, for example the spring of a barrel.
  • Watches are known in which the oscillating mass is arranged at the bottom of the case, for example mounted on the bridge side of the watch. Watches are also known in which the oscillating weight is arranged in correspondence of the dial of the watch.
  • An ideal oscillating weight has both a large mass and a large moment of inertia, which allows efficient winding of the watch. It can concentrate most of its mass on its outer periphery.
  • a mass generally comprises a massive peripheral part, generally in the form of an arc of a circle. This part will be referred to below as the “inertial sector”.
  • a "plank” connects the sector of inertia to the bearing, which defines the axis of rotation of the mass.
  • such a mass also comprises connecting elements, for example arms, connecting the sector of inertia to the bearing.
  • These arms can define openings, making it possible to see at least partially the elements behind and/or in front of the oscillating mass, while reducing its mass.
  • the known oscillating weights consist of a single piece, having a fixed geometry, that is to say a geometry which does not vary over time.
  • the winding torque of these masses does not vary over time either.
  • the oscillating mass comprises two or more parts whose relative position does not change substantially over time. In other words, during the movement of the oscillating mass, these parts are synchronous.
  • the document CH707942 relates to a mass comprising two parts linked by a rigid mechanical synchronization link, for example a connecting rod, each end of which is secured to one of the parts by a screw.
  • the two parts are always synchronous.
  • EP1136891 concerns two oscillating masses in the same plane, connected by a gear train so that the two masses still have a synchronous movement, in order to avoid collisions.
  • the document EP1918789 describes an oscillating mass comprising two parts, one part of which moves on a guide means on the periphery of the other part.
  • the moving part gives the initial impulse to the oscillating mass. Then the two parts have a fixed position relative to each other.
  • the accelerations encountered may be significantly higher.
  • the arm and/or the hand which wears the watch comprising such an oscillating mass can (can) undergo high accelerations. This happens, for example, when the user plays a sport such as tennis, golf, etc.
  • the winding mechanisms are chosen so that they provide conditions for winding the spring for a normally active person.
  • the barrel spring is highly stressed and a risk of wear cannot be excluded. If, on the contrary, the wearer is not very active, it is possible that the mainspring is not sufficiently armed.
  • the document EP1445668 relates to an oscillating mass comprising two parts removable with reference to each other, and arranged in such a way that their relative movement generates a radial displacement of the center of gravity of the oscillating mass.
  • the oscillating mass described in the document EP1445668 has certain disadvantages. Indeed, to move the center of gravity of the oscillating mass, it is necessary to take the watch to a watchmaker trained for this purpose, because this movement is achieved by unscrewing screws and nuts which fix the position of the first part compared to the second. Then it is necessary to move the second part to a new position and screw in the screws and nuts again.
  • the user of known watches cannot directly vary the geometry of the oscillating mass, and therefore the position of its center of gravity and thus adapt it to his way of life (for example, sports mode, normal mode, ... ).
  • a user has no known solutions for acting himself on the watch so that the movement of the mass does not cause his watch to wind up under certain conditions (for example and in a non-limiting when he practices a sport), and also in such a way that the movement of the mass causes on the contrary the winding of the watch in other conditions (for example and in a non-limiting way when he has finished practicing his sport ).
  • the document EP2544055 describes an oscillating part such as an oscillating weight, in which a front surface of the oscillating part is used as an additional display surface.
  • the oscillating mass carries a dial and three output displays, in particular three hands.
  • the three hands are linked, via gears, to three output wheels rotating around the main pivot axis of the mechanism.
  • the dial is carried by a dial wheel, which is linked via an intermediate gear train to a toothing which gives the angular position of the oscillating weight.
  • the dial remains permanently in the same angular orientation with respect to the plate of the movement, and to the case which contains the latter.
  • This document does not describe a mechanism making it possible to vary the center of gravity of the oscillating mass, nor the winding torque.
  • the document US2593685 relates to a mechanism intended to be mounted on the steering wheel of a car and which exploits the movements of the steering wheel and/or the vibrations of the car to wind a watch.
  • the mechanism comprises a casing linked to the flywheel and comprising two masses in the shape of a sphere or half-sphere, arranged so that the larger contains the smaller.
  • the two masses are connected to a "differential" mechanism, comprising two parallel bevel gears, both connected to a third bevel gear mounted on a shaft.
  • the mechanism is arranged in such a way that the movements of the masses are transformed into a unidirectional rotational movement of the shaft around the axis, independently of the direction of oscillation of the two masses.
  • the masses make it possible to rotate the differential mechanism by their movement.
  • a timepiece comprising an oscillating weight with variable geometry in which the geometry and therefore the position of the center of gravity of the mass can be varied by the user of the watch without having the need to bring the watch to a watchmaker trained for this purpose.
  • An object of the present invention is to provide a timepiece comprising an oscillating weight with variable geometry free from the limitations of known oscillating weights.
  • An object of the present invention is also to provide a timepiece comprising an oscillating mass with variable geometry in which the position of the center of mass can be modified by the user of the watch without having to take the watch to a watchmaker trained in this effect.
  • An object of the present invention is also to provide a timepiece such as an automatic watch, the user of which can directly vary the geometry of the oscillating mass, and therefore the position of its center of gravity and thus adapt it to its lifestyle (for example, sports mode, normal mode, ).
  • a “differential mechanism” is a horological mechanism which comprises at least one sun wheel and at least one satellite wheel comprising an axis of rotation, arranged both to turn around this axis of rotation and to turn around the sun wheel.
  • the differential mechanism is a double satellite and double sun wheel differential mechanism, that is to say it comprises two sun wheels and two planet wheels.
  • this solution has the particular advantage over the prior art of being able to vary the geometry of the oscillating mass, and therefore the position of its center of gravity, directly by the user of the watch. , without having to take the watch to a watchmaker trained for this purpose.
  • the user can thus ensure that the movement of the mass does not cause the winding of the watch under certain conditions (for example and in a non-limiting way when he practices a sport), and ensure that the movement of the mass cause the watch to be wound under other conditions (for example and in a non-limiting way when he has finished practicing his sport).
  • the Figure 1A illustrates a perspective view of one side of the oscillating mass 1 of the timepiece according to one embodiment of the invention, in which the first part 10 of the mass occupies a first position relative to the second part 20.
  • the first part 10 comprises at its periphery a sector of inertia 12 defining the large part of its mass and a board 16 connecting the sector to a bearing (not shown), for example a ball bearing, carried by the oscillating mass 1 and defining a first axis of rotation 40.
  • the board 16 comprises arms 17, defining openings 14. In other variants, these openings 14 are not present.
  • the sector of inertia 12 has a periphery substantially in the shape of an arc of a circle.
  • the first part 10 has substantially the shape of a circular sector, extending over an angle of approximately 60°. In general, this sector can extend over an angle in the range 15°-90°.
  • the board 16 is substantially planar, that is to say that it extends substantially on a single plane.
  • the second part 20, which is a different part from the first part 10, also comprises at its periphery a sector of inertia 22 defining the large part of its mass and a plate 26 connecting the sector 22 to the bearing (not shown).
  • the board 26 comprises arms 27 defining openings 24. In other variants, these openings 24 are not present.
  • the presence of openings 14, 24 in one of the two parts 10, 20 does not necessarily imply the presence of openings in the other part 20 respectively 10.
  • the sector of inertia 22 has a periphery substantially in the shape of an arc of a circle.
  • the first part 10 has substantially the shape of a circular sector, similar to that of part 20.
  • the board 26 of the second part 20 is not substantially flat, but it extends over two planes.
  • the board 26 of the second part 20 comprises a first part 261, proximal to the axis of rotation 40 and a second part 262, distal to the axis of rotation 40, which belong to two different planes.
  • the distance between these two planes 261, 262 corresponds substantially to the thickness of the first part 10 so that when the sector of inertia 12 of the first part 10 comes into contact with the sector of inertia 22 of the second part 20 in correspondence of the contact region C, the board 16 of the first part 10 and the second part 262 of the board 26 of the second part 20 are coplanar.
  • the first part 10 is only partially superimposed on the second part 20, in correspondence of the first part 261 of the board 26 of the second part 20.
  • the sector of inertia 12 of the first part 10 is arranged side-by-side of the sector of inertia 22 of the second part 20.
  • a first part 161 of the board 16 of the first part 10 is superimposed on a first part 261 of the board 26 of the second part 20 (in correspondence of the axis of rotation 40) and a second part 162 of the board 16 of the first part 10 is arranged side by side of the second part 262 of the board 26 of second exhibit 20.
  • the sector of inertia 12 of the first part 10 can be arranged side by side of the sector of inertia 22 of the second part 20 and the entire board 16 of the first part 10 can be superimposed on the entire board 26 of the second part 20.
  • each of the two parts 10, 20 is flat and a first part 161 of the board 16 of the first part 10 is superimposed on a first part 261 of the board 26 of the second part 20 (in correspondence of the axis of rotation 40).
  • the two pieces thus remain on two different planes even when they are placed next to each other. It is possible that in this variant one end of the sector of inertia of a part is partially superimposed on the sector of inertia of the other part
  • the oscillating weight 1 may include means for maintaining the position of one part relative to the other.
  • one part may carry a finger or pin which engages a corresponding opening in the other part.
  • Other variants can easily be imagined.
  • the first part 10 and/or the second part 20 are made of heavy material, frequently heavy metal, gold or platinum in high-end watches.
  • a differential mechanism 30, partially visible on the Figure 1A is connected to the first part 10 and to the second part 20 so as to vary the relative position of a part with respect to the other by a rotary movement of at least one of the parts around the axis of rotation 40, this rotary movement causing the geometry of the oscillating weight 1 to vary and therefore the position of the center of rotation of the oscillating weight 1 and by therefore the winding torque of the watch.
  • This relative movement of one part with reference to the other is achieved by a rotation of at least one of the two parts 10, 20 around the axis 40 of the oscillating weight 1.
  • the user can advantageously modify the geometry of the oscillating mass 1 of the timepiece according to the invention, that is to say the winding torque of the watch, at any time, for example between two extreme positions (for example those of figures 1A and 1B ).
  • the extreme positions can be selected by the wearer of the watch.
  • an indicator (not shown) makes it possible to display the chosen pair.
  • the second piece 20 also moves.
  • the picture 2 illustrates a logic diagram of the operation of the oscillating mass 1 of the timepiece according to the invention.
  • a means of selecting the desired winding 50 of the watch for example a crown or a button
  • the user selects the desired variant.
  • this means makes it possible to select an operating mode of the watch, for example from among at least two possible operating modes, each operating mode corresponding to a predetermined configuration of the two parts 10, 20 of the mass and therefore to a predefined geometry.
  • the user can choose between a "SPORT” mode, in which the position of the two parts 10, 20 of the mass does not allow winding of the watch (for example as illustrated in the figure 1B ) and a “NORMAL” mode, in which the position of the two parts 10, 20 of the mass allows maximum winding of the watch (for example as illustrated in the Figure 1A ).
  • an optional indicator 60 can indicate the configuration of the parts 10, 20 chosen and/or the mode of operation of the watch chosen.
  • the differential mechanism 30 of the timepiece according to the invention has been represented on the figure 2 as comprising two inputs (in particular a wheel 34 of the differential mechanism 30 which will be discussed later) and one of the two parts, for example the first part 10 and an output, for example the other of the two parts 10, 20 (the second part 20 in this case).
  • the picture 3 illustrates a perspective view from the other side of the oscillating mass 1 of the Figure 1A .
  • the differential mechanism 30 comprises a first satellite wheel 33a.
  • tellite wheel designates a wheel, in particular a toothed wheel, which is arranged both to rotate around its axis of rotation and which can at the same time also rotate around another wheel.
  • the first satellite wheel 33a comprises an axis of rotation 42 around which it can rotate. It is connected to the second part 20, in particular it is carried by the second part 20. It is arranged both to turn around the second axis of rotation 42 and to turn around an intermediate wheel 32 connected to the second part 20
  • the intermediate wheel 32 is therefore a connecting wheel.
  • its dimensions are smaller than those of the central wheels 31, 34 and of the two satellite wheels 33a, 33b.
  • the intermediate wheel 32 in the example of picture 3 is also carried by the second part 20 and has the function of planet carrier. It meshes with a first central wheel 31 which has the function of a sun wheel, around which one or more satellites can turn.
  • the first sun wheel 31 is connected to the first part 10, in particular it is carried by the first part 10. It is arranged to rotate around the axis of rotation 40 of the oscillating weight 1.
  • the differential mechanism 30 also comprises a second planet wheel 33b, which in the case illustrated is coaxial with the first planet wheel 33a.
  • This second satellite wheel 33b is still connected to the second part 20, in particular it is carried by the second part 20. It is arranged both to turn around the axis of rotation 42 and to turn around a second central wheel. 34 which also has the function of a sun wheel, around which one or more satellites can turn.
  • the second sun wheel 34 is fixed most of the time, except during the change of geometry of the oscillating mass 1. It is arranged to rotate around the axis of rotation 40 of the oscillating mass 1.
  • the differential mechanism of picture 3 is therefore a differential mechanism with double satellite and double sun wheel.
  • the two planet wheels are not coaxial and rotate around different axes.
  • the two central wheels 31, 34 and the two parts 10, 20 of the oscillating mass 1 are all coaxial. They are arranged to rotate around the axis of rotation 40.
  • the sun wheel 34 is kept fixed by means of a fixing mechanism (not shown) such as a jumper.
  • the second sun wheel 34 rotates around the axis of rotation 40, thus driving the second satellite wheel 33b around its axis of rotation 42 and around the sun wheel 34.
  • the second planet wheel 33b in turn drives the rotation of the first planet wheel 33a around its axis of rotation 42 and around the first sun wheel 31.
  • the first sun wheel 31 therefore also rotates around the axis of rotation 40, by causing the displacement of the first part 10 with respect to the second part 20.
  • the satellite wheels 33a, 33b rotate both around their axis of rotation 42 and also around the central wheels ( or possibly intermediate wheels). Once the two pieces are in the desired relative position, they no longer move relative to each other. In this case, during the movement of the oscillating mass 1, the two parts are synchronous and during their movement, the planet wheels 33a, 33b turn only around their axis of rotation 42.
  • the control for modifying the geometry of the oscillating weight 1, performed by the wearer of the watch acts via a gear train (not shown) at the level of a third central wheel (not shown) superimposed and integral with a sun wheel (for example the second sun wheel 34) in order to modify its setting.
  • the fineness of the adjustment depends on the number of teeth of the third central wheel.
  • the first planet wheel 33a is smaller than the second planet wheel 33b and the first sun wheel 31 is larger than the second sun wheel 34.
  • FIGS. 6A to 6C illustrate perspective views of another embodiment of the oscillating mass 1 of the timepiece according to the invention, in which the first part 10 of the mass occupies three different positions with respect to the second part 20. These positions are not limiting and the first piece 10 of the mass could occupy a different number of three different positions with respect to the second piece 20.
  • the first part 10 is arranged to be completely superimposed on the second part 20 (as illustrated in the Fig. 6C ).
  • the two parts 10, 20 are completely superimposed, their occupation of the surface is minimal.
  • their size and/or their weight can be adapted in order to take account of this particularity (at equal weight, this oscillating mass, although thicker, occupies a lower surface).
  • the oscillating mass 1 comprises several parts (for example three or more) and a differential mechanism arranged to move the parts so that they are all superimposed on each other and to move them the way you open a fan.
  • an indicator informs the wearer about the angular difference between the two parts 10, 20 chosen by the wearer of the watch and/or about the mode of operation chosen and/or about the geometry of the weight oscillating weight and/or on the winding torque of the oscillating weight.
  • one of the two parts 10, 20, in particular the one that moves can comprise one end of the mass configured in such a way as to represent the end of an indicator such as a needle.
  • a scale, or any other equivalent means, can be positioned on the other part.
  • an indicator such as a hand is made integral with a sun wheel, for example the wheel 34.
  • This indicator can be indexed with a scale or any other equivalent means which can for example appear at the level of the dial of the watch, taking into account the relative position of the two parts 10, 20.
  • a gear train connected to the wheel 34 can make it possible to display the position of the latter at various places on the dial, for example by means of a needle or an indicator disc, or even on a side of the case, for example by means of a disc visible through an aperture.
  • the wheels of the differential mechanism can be dimensioned so that the parts 10, 20 move with the same angular speed. In other variants, the wheels of the differential mechanism are dimensioned so that the parts 10, 20 move with a different angular speed.
  • the angular speed of a part is greater, for example twice or N times greater, than the angular speed of the corresponding sun wheel. In a variant, this ratio will be taken into account to dimension a possible correction mechanism.
  • the Figure 7A illustrates a top view of another embodiment of the oscillating mass 1 of the timepiece according to the invention, in which the first part 10 of the mass occupies a first position relative to the second part 20.
  • the first part 10 is arranged next to the second part 20, similarly to the Figure 1A .
  • the figure 7B illustrates a top view of the oscillating weight embodiment of the Figure 7A , in which the first part 10 of the mass 1 occupies a second position with respect to the second part 20.
  • the first part 10 is opposed to the second part 20, in a manner similar to the figure 1B .
  • the arrows F1, F2 indicate the direction of the angular displacement of the first part 10 relative to the second part 20 (by 90° in the example shown) respectively of the differential mechanism 30.
  • the figure 8 illustrates a perspective view of a part of another embodiment of the oscillating weight 1 of the timepiece according to the invention.
  • the differential mechanism 30 it is possible to see one embodiment of the interaction of the differential mechanism 30 with the parts 10, 20.
  • the differential mechanism 30 comprises a first satellite wheel 33a.
  • the illustrated first satellite wheel 33a comprises an axis of rotation 42, around which it can rotate. It is connected to the first piece 10. It is arranged both to turn around the axis of rotation 42 and to turn around an intermediate wheel 32 connected to the first part 10.
  • the intermediate wheel 32 is therefore a connecting wheel.
  • the intermediate wheel 32 in the example of figure 8 has the function of satellite carrier. It meshes with a first central wheel 31 which has the function of a sun wheel, around which one or more satellites can turn.
  • the first sun wheel 31 is connected to the first part 10. It is arranged to rotate around the axis of rotation 40 of the oscillating mass 1.
  • the differential mechanism 30 also comprises a second planet wheel 33b, which in the case illustrated is coaxial with the first planet wheel 33a.
  • This second satellite wheel 33b is connected to the second part 20. It is arranged both to turn around the axis of rotation 42 and to turn around a second intermediate wheel 35 connected to the second part 20.
  • the intermediate wheel 35 is therefore also a connecting wheel.
  • the intermediate wheel 35 in the example of figure 8 has the function of satellite carrier. It meshes with a second central wheel 34 which has the function of a sun wheel, around which one or more satellites can turn.
  • the first intermediate wheel 32 is coaxial with the second intermediate wheel 35.
  • these wheels share the axis of rotation 43.
  • the oscillating mass 1 also comprises a frame 80 which comprises a central part 81, substantially rectilinear and two ends 82, 83, of substantially circular shape. Each of these ends carries an axis, in particular the end 82 carries the axis of rotation 42 of the first and second planet gears 33a, 33b and the end 83 carries the axis of rotation 43 of the first and second intermediate wheels 32, 35
  • the frame 80 is arranged to rotate around the axis of the axis of rotation 43 of the first and second intermediate wheels 32, 35.
  • the frame 80 in particular its central part 81, comprises an opening 84, to reduce its weight.
  • the end 83 of the frame 80, which carries the axis of rotation 43 of the first and second intermediate wheels 32, 35 comprises a toothing 89 to be able to mesh with a pilot wheel 90.
  • the pilot wheel 90 includes an opening 94 to lighten its weight.
  • the oscillating mass 1 of the Figures 7A, 7B and 8 is based on the differential principle. Indeed, when the chassis 80 is rotated over a given angle, the information provided to the chassis is relayed by the gear train (satellite wheels 33a, 33b, intermediate wheels 32, 35), thus allowing an angular phase shift of the two pieces 10, 20.
  • the frame 80 drives the two satellite wheels 33a, 33b linked together, thus generating a rotation of at least one intermediate wheel and therefore of the corresponding sun wheel, which means that the corresponding part (part 10 in the example) will shift angularly by the desired angle.
  • the first planet wheel 33a is smaller than the second planet wheel 33b; the first intermediate wheel 32 is larger than the second intermediate wheel 35. Finally, the first sun wheel 31 is smaller than the second sun wheel 34.
  • the first satellite wheel 33a, the first intermediate wheel 32 and the first sun wheel 31 belong to the same first plane; the second satellite wheel 33b, the second intermediate wheel 35 and the second sun wheel 34 belong to the same second plane, which on the figure 8 is lower than the foreground.
  • the movement of the pilot wheel 90 causes the movement of the end 83 of the frame 80, in particular its rotation around the axis 43.
  • This rotation in one embodiment, causes the rotation of the second satellite wheel 33b around its axis 42.
  • the second satellite wheel 33b meshes with the second intermediate wheel 35
  • the latter in turn rotates around the axis of rotation 43.
  • the second intermediate wheel 35 meshes with the second sun wheel 34
  • the latter rotates in turn around the axis of rotation 42, thus causing the second piece 20 to rotate around the same axis of rotation 42.
  • the movement of the pilot wheel 90 causes the movement of the end 83 of the frame 80, in particular its rotation around the axis 43.
  • This rotation drives the rotation of the first planet wheel 33a around its axis 42.
  • the first planet wheel 33a meshes with the first intermediate wheel 32
  • the latter in turn rotates around the axis of rotation 43, the second intermediate wheel 35 remaining fixed. Since the first intermediate wheel 32 meshes with the first sun wheel 31, the latter in turn rotates around the axis of rotation 42, thus causing the first part 10 to rotate around the same axis of rotation 42.
  • the figure 9 illustrates a top view of the pilot mechanism 100 of an embodiment of the oscillating weight of the timepiece according to the invention, in a first rest position.
  • a shuttle principle has been used, thus making it possible to select two positioning states of one part 10, 20 relative to the other 20, 10, with a two-way angular displacement.
  • the steering mechanism 100 comprises a cam 101 coaxial with the pilot wheel 90 (not visible), a beak 103 cooperating with the cam 101 and connected to a control device 104, as well as a lock 102 also cooperating with the cam 101 .
  • the cam 101 has a slope 1013.
  • the beak 103 approaches the cam 101, it will have to follow the slope 1013 of the cam 101 in order to push it and suddenly change the relative position of the parts 10, 20.
  • the lock 102 when performing a full thrust on the control device 104, the lock 102 will fall into a notch of the cam 101 in order to immobilize it in a first rest position.
  • the lock has already fallen into the notch 1012 (better visible on the figure 10 ) and held in place by its elastic means 105 (a spring in the example shown) as well as by the return of the pilot wheel 90 which is in turn pulled by the elastic means 106 (a coil spring in the example shown) .
  • the figure 13 illustrates a top view of the steering mechanism of the figure 9 , in a support position of the beak 103 on the cam 101 for unlocking.
  • the beak 103 slides on the cam 101, in particular on its substantially rectilinear zone, until the lock 102 is disengaged from the cam 101.
  • the pilot wheel 90 as well as the cam 101 are repositioned in the initial position.
  • the figure 14 illustrates a top view of the steering mechanism of the figure 9 , in a second stop position and with the pilot wheel 90.
  • the oscillating weight 1 of the timepiece according to the invention comprises a device making it possible to check whether the acceleration of the oscillating weight 1 within the framework of a configuration like that of the Figure 1A , and in any case within the framework of a configuration different from the configuration with zero winding torque, exceeds a threshold and/or a device making it possible to measure the acceleration of such an oscillating weight 1.
  • This device can be completely mechanical, electromechanical and/or electronic, for example an accelerometer.
  • this device could comprise an element connected to one of the two parts 10, 20 so that during an acceleration of the oscillating weight 1 below a certain threshold, it does not change its position, and during an acceleration of the oscillating mass 1 equal to or greater than a certain threshold, it changes position, this change of position allowing (directly or through another element) the displacement of a part 10, 20 by relative to the other so that the movement of the mass does not wind up the energy source of the watch.
  • this embodiment it is thus possible to vary the geometry of the oscillating mass automatically, without the intervention of the user, thus avoiding damage to the watch if the user has not changed the operating mode of the watch before the watch undergoes a significant acceleration.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
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  • Electric Clocks (AREA)

Claims (13)

  1. Eine Uhr, umfassend :
    - eine Schwingmasse (1) mit variabler Geometrie für einen Uhrmechanismus für eine von einem Nutzer zu tragende Uhr, umfassend:
    - ein erstes Teil (10),
    - ein zweites Teil (20),
    - eine erste Drehachse (40), die dem ersten Teil (10) und dem zweiten Teil (20) gemeinsam zugeordnet ist, wobei zumindest eines von dem ersten Teil (10) und dem zweiten Teil (20) so angeordnet ist, dass es um die genannte erste Drehachse (40) schwingen kann,
    - ein Auswahlmittel (50) für eine bevorzugte Geometrie der Schwungmasse (1), wobei die Schwungmasse Folgendes umfasst
    - einen Differentialmechanismus (30), der mit dem Auswahlmittel (50), dem ersten Teil (10) und dem zweiten Teil (20) verbunden und so angeordnet ist, dass er auf der Grundlage der Auswahl der bevorzugten Geometrie der Schwingmasse (1) die relative Position des einen Teils (10 ; 20) in Bezug auf das andere (20; 10) durch eine Drehbewegung von mindestens einem der Teile (10; 20) um die erste Drehachse (40) zu verändern, wobei diese Bewegung(en) die Geometrie der Schwungmasse (1) und die Position eines Schwerpunkts der Schwungmasse (1) variiert(en).
  2. Uhr nach Anspruch 1, wobei der Differentialmechanismus (30) umfasst:
    - ein erstes Sonnenrad (31), das koaxial zu dem ersten Teil (10) und dem zweiten Teil (20) angeordnet und mit dem ersten Teil (10) verbunden ist;
    - ein erstes Satellitenrad (33a), das eine zweite Drehachse (42) umfasst, wobei das erste Satellitenrad (33a) sowohl zur Drehung um die zweite Drehachse (42) als auch zur Drehung um das erste Sonnenrad (31) angeordnet ist.
  3. Uhr nach Anspruch 2, wobei der Differentialmechanismus (30) umfasst:
    - ein zweites Sonnenrad (34), das mit dem zweiten Teil (20) verbunden ist und koaxial zu dem ersten Teil (10), dem zweiten Teil (20) und dem ersten Sonnenrad (31) ist, und
    - ein zweites Satellitenrad (33b), das eine dritte Drehachse umfasst, wobei das zweite Satellitenrad (33b) sowohl zur Drehung um die dritte Drehachse als auch zur Drehung um das zweite Sonnenrad (34) angeordnet ist.
  4. Uhr nach Anspruch 3, wobei die zweite Drehachse (42) die dritte Drehachse bildet.
  5. Uhr nach einem der Ansprüche 1 bis 4, wobei der Differentialmechanismus (30) ein Differentialmechanismus mit doppeltem Satellitenrad (33a, 33b) und doppeltem Sonnenrad (31, 34) darstellt.
  6. Uhr nach einem der Ansprüche 2 bis 5, wobei der Differentialmechanismus (30) ein erstes Zwischenrad (32) zwischen dem ersten Satellitenrad (33a) und dem ersten Sonnenrad (31) aufweist.
  7. Uhr nach einem der Ansprüche 3 bis 6, wobei der Differentialmechanismus (30) ein zweites Zwischenrad (35) zwischen dem zweiten Satellitenrad (33b) und dem zweiten Sonnenrad (34) umfasst.
  8. Uhr nach den Ansprüchen 6 und 7, wobei das erste Zwischenrad (32) koaxial mit dem zweiten Zwischenrad (35) angeordnet ist.
  9. Uhr nach einem der Ansprüche 6 bis 8, in Abhängigkeit von Anspruch 2, mit einem Gehäuse (80), das die zweite Drehachse (42) und die Drehachse (43) des ersten und/oder zweiten Zwischenrads (32, 35) umfasst.
  10. Uhr nach Anspruch 9, umfassend ein Steuerrad (90), das so angeordnet ist, dass es mit dem Chassis (80) in Eingriff steht.
  11. Uhr nach Anspruch 10, mit einem Mechanismus (100) zum Steuern des Steuerrads (90), wobei der Steuermechanismus (100) eine Steuervorrichtung (104), einen zum Steuerrad (90) koaxialen Mitnehmer (101), eine mit dem Mitnehmer (101) zusammenwirkende und mit der Steuervorrichtung (104) verbundene Nase (103) und einen ebenfalls mit dem Mitnehmer (101) zusammenwirkenden Riegel (102) umfasst.
  12. Uhr nach Anspruch 11, wobei der Steuermechanismus (100) ein elastisches Mittel (105) zum Halten des Riegels (102) in einer Kerbe (1012) des Nockens (101) und/oder ein elastisches Mittel (106) zum Halten des Steuerrads (90) umfasst.
  13. Uhr nach einem der Ansprüche 1 bis 12, mit einer Anzeige (60), die so angeordnet ist, dass sie einen von einem Nutzer der Uhr gewählten Winkelabstand zwischen den beiden Teilen (10, 20) anzeigt und/oder den vom Nutzer der Uhr gewählten Funktionsmodus der Uhr anzeigt und/oder die vom Nutzer der Uhr gewählte Geometrie der Schwungmasse anzeigt und/oder das vom Nutzer der Uhr gewählte Drehmoment zum Aufziehen der Schwungmasse anzeigt.
EP19798135.0A 2018-11-02 2019-11-04 Oszillierendes gewicht mit variabler geometrie für einen uhrwerkmechanismus Active EP3874331B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01345/18A CH715510A1 (fr) 2018-11-02 2018-11-02 Masse oscillante à géométrie variable pour mécanisme horloger.
PCT/IB2019/059428 WO2020089877A1 (fr) 2018-11-02 2019-11-04 Masse oscillante à géométrie variable pour mécanisme horloger

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EP3874331B1 true EP3874331B1 (de) 2022-09-21

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CN114158968B (zh) * 2021-12-16 2023-09-08 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） 一种儿科护理清洗装置及其使用方法

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US2593685A (en) * 1948-03-15 1952-04-22 Maar Zvonko Timepiece winding device
CH317534A (fr) * 1954-05-06 1956-11-30 Bueren Watch Company S A Masse pour montre à remontage automatique
CH692539A5 (de) 2000-03-15 2002-07-15 Paul Gerber Uhren Konstruktion Aufzugeinrichtung für Uhren
EP1445668B1 (de) * 2003-02-04 2009-07-15 Vaucher Manufacture Fleurier SA Schwungmasse
ATE418751T1 (de) 2006-10-31 2009-01-15 Swatch Group Man Serv Ag Schwingmasse zum wiederaufladen der energiequelle eines tragbaren instruments
CN101587099B (zh) 2008-05-21 2012-03-28 鸿富锦精密工业（深圳）有限公司 表面声波感测器的制作方法
EP2360535B1 (de) * 2010-02-24 2012-12-05 Blancpain S.A. Schwungmasse eines Uhrwerks mit automatischem Aufzug und Gangreserve-Anzeigevorrichtung, die in dieser Schwungmasse integriert ist
JP5731872B2 (ja) * 2011-03-30 2015-06-10 セイコーインスツル株式会社 時計用回転錘およびその回転錘を備えた時計
CH705252B1 (fr) 2011-07-07 2015-11-30 Blancpain Sa Mouvement d'horlogerie comportant des moyens pour l'affichage d'une grandeur physique.
CH707942B1 (fr) 2013-04-24 2017-12-15 Montres Corum Sàrl Mécanisme de remontage automatique pour mouvement horloger comportant au moins deux masses de remontage.

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CN113227913B (zh) 2022-12-16
CN113227913A (zh) 2021-08-06
US20210373495A1 (en) 2021-12-02
CH715510A1 (fr) 2020-05-15
US11892806B2 (en) 2024-02-06
EP3874331A1 (de) 2021-09-08
WO2020089877A1 (fr) 2020-05-07
JP2022506398A (ja) 2022-01-17

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