EP3874331A1 - Oscillating weight with variable geometry for a timepiece mechanism - Google Patents
Oscillating weight with variable geometry for a timepiece mechanismInfo
- Publication number
- EP3874331A1 EP3874331A1 EP19798135.0A EP19798135A EP3874331A1 EP 3874331 A1 EP3874331 A1 EP 3874331A1 EP 19798135 A EP19798135 A EP 19798135A EP 3874331 A1 EP3874331 A1 EP 3874331A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- rotation
- axis
- oscillating
- mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 73
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 241001433879 Camarea Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- 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 an oscillating mass with variable geometry for a timepiece mechanism, as well as a timepiece mechanism comprising such a mass and a timepiece comprising such a mass and / or such a mechanism.
- Oscillating masses for automatic watches are well known and widely used.
- an oscillating mass makes it possible to reassemble 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 transforms the reciprocating movement of the mass into a one-way rotary movement.
- the gear train of the winding system provides the link between the various elements. The rotational driving of the winding train allows to arm an energy source 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 mass is arranged in correspondence with the watch face. We know oscillating masses which are not visible to the wearer of the watch. However, we also know watches
- An ideal oscillating mass 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.
- Such a mass generally comprises a massive peripheral part, generally in the form of an arc of a circle. This part will be called in the following “inertia sector”.
- a "board" connects the inertia sector to the bearing, which defines the axis of rotation of the mass.
- such a mass also includes connecting elements, for example arms, connecting the inertia sector to the bearing.
- These arms can define openings, making it possible to at least partially see the elements behind and / or in front of the oscillating mass, while reducing its mass.
- oscillating masses have no openings.
- the known oscillating masses are made of a single piece, having a fixed geometry, that is to say a geometry which does not vary over time. The reassembly torque of these masses does not vary over time either.
- the oscillating mass comprises two or more parts whose relative position does not change
- document CH707942 relates to a mass comprising two parts linked by a rigid mechanical synchronization link, for example a rod, each end of which is made integral with one of the parts by a screw.
- the two parts are always synchronous.
- Document EP1136891 relates to 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.
- 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 can be significantly higher.
- the arm and / or the hand which carries (carry) the watch comprising such an oscillating mass can (can) undergo high accelerations. This happens, for example, when the user practices a sport such as tennis, golf, etc.
- EP1445668 has certain disadvantages. Indeed, to move the center of gravity of the oscillating mass, it is necessary to bring 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 piece compared to the second. Then it is necessary to move the second piece to a new position and re-tighten the screws and nuts.
- the change in geometry and therefore in the position of the center of mass (or center of gravity) of the watch is therefore neither simple nor immediate. It cannot be made by the wearer of the watch.
- the user of known watches cannot directly vary the geometry of the oscillating mass, and therefore the position of his center of gravity and thus adapt it to his lifestyle (for example, sports mode, normal mode, ).
- a user has no known solutions for acting on the watch himself so that the movement of the mass does not cause the winding of his watch under certain conditions (for example and in a nonlimiting way when he practices a sport), and also so that the movement of the mass on the contrary causes the winding of the watch in other conditions (for example and in a nonlimiting way when he has finished practice his sport).
- Document EP2544055 describes an oscillating part such as an oscillating mass, in which a front surface of the oscillating part is used as an additional display surface.
- the oscillating weight carries a dial and three output displays, in particular three hands. The three needles are linked, via cogs, to three outlet mobiles rotating around the main pivot axis of the mechanism.
- the dial is carried by a dial wheel, which is linked via an intermediate gear to a toothing which gives the angular position of the oscillating mass.
- the dial remains permanently in the same angular orientation relative to the movement plate, and to the case which contains the latter. This document does not describe a mechanism for varying the center of gravity of the oscillating mass, or the winding torque.
- 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 housing linked to the steering wheel and comprising two masses in the form of a sphere or hemisphere, arranged so that the largest contains the smallest.
- 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 so that the movements of the masses are transformed into a unidirectional rotational movement of the shaft around the axis, regardless of the direction of oscillation of the two masses.
- the masses allow the differential mechanism to rotate by their movement.
- An object of the present invention is to provide an oscillating mass with variable geometry free from the limitations of known oscillating masses.
- An object of the present invention is also to propose 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 bring the watch to a watchmaker trained for this purpose.
- An object of the present invention is also to provide a timepiece mechanism and / or a timepiece such as an automatic watch whose user can directly vary the geometry of the oscillating weight, and therefore the position of its center of gravity and adapt it to your lifestyle (for example, sports mode, normal mode, ).
- these aims are achieved in particular by means of the oscillating mass with variable geometry according to claim 1, by means of the timepiece mechanism according to claim 13 and by means of the timepiece according to claim 14.
- the oscillating mass with variable geometry for a timepiece mechanism comprises:
- first axis of rotation common to the first part and to the second part, at least one between the first part and the second part being arranged to be able to oscillate around the first axis of rotation
- a differential mechanism connected to the first part and to the second part so as to vary the relative position of one part with respect to the other by a rotary movement of at least one of the parts around said axis of rotation, this ( s) displacement (s) varying the geometry of the oscillating mass and the position of the center of gravity of the oscillating mass.
- a "differential mechanism” is a
- the differential mechanism which comprises at least one sun wheel and at least one satellite wheel comprising an axis of rotation, arranged both to rotate around this axis of rotation and to rotate around the sun wheel.
- the differential mechanism is a differential mechanism with double satellite and double solar wheel, that is to say that it comprises two solar wheels and two satellite 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 without limitation when he practices a sport), and ensure that the movement of the mass causes the watch to be reassembled in other conditions (for example and without limitation when he has finished practicing his sport).
- Figure 1A illustrates a perspective view of one side of the oscillating weight according to an embodiment of the invention, in which the first part of the mass occupies a first position relative to the second part.
- Figure 1B illustrates a perspective view of the oscillating weight of Figure 1A, wherein the first part of the mass occupies a second position relative to the second part.
- Figure 2 illustrates a logic diagram of the operation of the oscillating weight according to the invention.
- Figure 3 illustrates a perspective view of the other side of the oscillating mass of Figure 1A.
- Figure 4 illustrates a perspective view of an embodiment of the differential mass mechanism according to the invention.
- FIG. 5 illustrates a section view of the oscillating mass of FIG. 3.
- FIG. 6A to 6C illustrate perspective views of another embodiment of the oscillating weight according to the invention, in which the first part of the mass occupies three different positions relative to the second part.
- FIG. 7A illustrates a top view of an embodiment of the oscillating mass according to the invention, in which the first part of the mass occupies a first position relative to the second part.
- FIG. 7B illustrates a top view of the embodiment of the oscillating mass of FIG. 7A, in which the first part of the mass occupies a second position relative to the second part.
- Figure 8 illustrates a perspective view of a part of an embodiment of the oscillating weight according to the invention.
- Figure 9 illustrates a top view of the control mechanism of an embodiment of the oscillating weight according to the invention, in a first rest position.
- Figure 10 illustrates a top view of the drive mechanism of Figure 9, in a first selection position, with the driver wheel.
- Figure 1 1 illustrates a top view of the control mechanism of Figure 9, in a first stop position.
- Figure 12 illustrates a top view of the piloting mechanism of Figure 9, in a second rest position.
- Figure 13 illustrates a top view of the piloting mechanism of Figure 9, in a support position for unlocking.
- Figure 14 illustrates a top view of the drive mechanism of Figure 9, in a second stop position, with the driver wheel.
- Figure 1A illustrates a perspective view of one side of the oscillating weight 1 according to an 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 significant part of its mass and a board 16 connecting the sector to a bearing (not illustrated), by example a ball bearing, carried by the oscillating mass 1 and defining a first axis of rotation 40.
- the plate 16 comprises arms 17, defining openings 14. In other variants, these openings 14 do not are not present.
- the inertia sector 12 has a periphery substantially in the form 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 plate 16 is
- the second part 20, which is a different part from the first part 10 also includes at its periphery an inertia sector 22 defining the significant part of its mass and a board 26 connecting sector 22 to the landing (not illustrated).
- 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 rooms 10, 20 does not necessarily imply the presence of openings in the other room 20
- the inertia sector 22 has a periphery substantially in the form of an arc of a circle.
- the first part 10 has substantially a circular sector shape, similar to that of the part 20.
- the two parts 10, 20 have substantially the same shape and are extend substantially over the same angle, this is not an essential characteristic of the invention. It is indeed possible to imagine parts 10, 20 having different shapes and / or which extend over different angles.
- the board 26 of the second part 20 is not substantially planar, but it extends over two planes.
- the plate 26 of the second part 20 comprises a first part 261, proximal to the axis of rotation 40 and a second part 262, distal from 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 inertia sector 12 of the first part 10 comes into contact with the sector of inertia 22 of the second part 20 corresponding to the contact region C, the plate 16 of the first part 10 and the second part 262 of the plate 26 of the second part 20 are coplanar.
- the first part 10 is only partially superimposed on the second part 20, in correspondence with the first part 261 of the board 26 of the second part 20.
- the inertia sector 12 of the first part 10 is arranged side by side with the inertia sector 22 of the second part 20. From more, 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 with the axis of rotation 40) and a second part 162 of the board 16 of the first part 10 is arranged side by side with the second part 262 of the plate 26 of the second part 20.
- the inertia sector 12 of the first part 10 can be arranged side by side of the inertia sector 22 of the second part 20 and the entire board 16 of the first part 10 can be superimposed on the whole 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 with 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 inertia sector of one part partially overlaps the inertia sector of the other part
- the oscillating mass 1 may include means for maintaining the position of a part relative to the other.
- a part can carry a finger or lug which engages in a corresponding opening in the other part.
- Other variants can be easily imagined.
- first part 10 and / or the second part 20 are made of heavy material, often heavy metal, gold or platinum in high-end watches.
- a differential mechanism 30, partially visible in 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 relative to the other by a rotary movement of at least one of the parts around the axis of rotation 40, this rotary movement varying the geometry of the oscillating mass 1 and therefore the position of the center of rotation of the oscillating mass 1 and by therefore the watch winding torque.
- This relative movement from 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 mass 1.
- maximum winding corresponds in this case to the configuration in which the two parts 10, 20 of the oscillating mass 1 are one next to the other.
- the user can advantageously modify the geometry of the oscillating weight 1 according to the invention, that is to say the winding torque of the watch, at all times, for example between two extreme positions (for example those Figures 1A and 1 B).
- the extreme positions can be selected by the wearer of the watch.
- an indicator not illustrated makes it possible to display the chosen couple.
- the second part 20 also moves.
- FIG. 2 illustrates a logic diagram of the operation of the oscillating mass 1 according to the invention.
- a means for 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 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 geometry predefined.
- the user can choose between a “SPORT” mode, in which the position of the two parts 10, 20 of the mass does not allow the watch to be reassembled (for example as illustrated in FIG. 1B) and a mode "NORMAL", in which the position of the two parts 10, 20 of the mass allows maximum winding of the watch (for example as illustrated in FIG. 1A).
- a “SPORT” mode in which the position of the two parts 10, 20 of the mass does not allow the watch to be reassembled
- NVMAL mode
- the position of the two parts 10, 20 of the mass allows maximum winding of the watch
- an optional indicator 60 can indicate the configuration of the parts 10, 20 chosen and / or the operating mode of the watch chosen.
- the differential mechanism 30 according to the invention has been shown in FIG. 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 outlet, for example the other of the two parts 10, 20 (the second part 20 in this case).
- FIG. 3 illustrates a perspective view of the other side of the oscillating mass 1 of FIG. 1 A. In this example, it is possible to see an 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 expression “satellite 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 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 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 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 Figure 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 solar wheel, around which one or more satellites can rotate.
- 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 mass 1.
- the differential mechanism 30 also includes a second satellite wheel 33b, which in the illustrated case is coaxial with the first satellite wheel 33a.
- This second satellite wheel 33b is also connected to the second part 20, in particular it is carried by the second part 20. It is arranged both to rotate around the axis of rotation 42 and to rotate around a second central wheel 34 which also has the function of a solar wheel, around which one or more satellites can rotate.
- the second solar 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 Figure 3 is therefore a differential mechanism with double satellite and double solar wheel.
- the first satellite wheel 33a is coaxial with the second satellite wheel 33b
- the two satellite 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 illustrated) such as a jumper.
- the second sun wheel 34 rotates around the axis of rotation 40, thereby driving the second satellite wheel 33b around its axis of rotation 42 and around the sun wheel 34.
- the second satellite wheel 33b in turn drives the rotation of the first satellite 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, causing the displacement of the first part 10 relative 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 occupy 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 only rotate around their axis of rotation 42.
- the command to modify the geometry of the oscillating mass 1, carried out by the wearer of the watch acts via a gear train (not illustrated) at a third wheel central (not shown) superimposed and secured to a solar wheel (for example the second solar wheel 34) in order to modify the setting.
- the fine adjustment is a function of the number of teeth of the third central wheel.
- Figure 3 a detail of which is illustrated in Figure 4 and a sectional view in Figure 5, the first satellite wheel 33a is smaller than the second satellite wheel 33b and the first sun wheel 31 is larger than the second solar wheel 34.
- FIGS 6A to 6C illustrate perspective views of another embodiment of the oscillating mass 1 according to the invention, in which the first part 10 of the mass occupies three positions
- the first part 10 is arranged to be completely superimposed on the second part 20 (as illustrated in Figure 6C).
- the two pieces 10, 20 are completely
- 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 one on the 'other and to move them the way you open a fan.
- an indicator informs the wearer of the angular difference between the two parts 10, 20 chosen by the wearer of the shows and / or the selected operating mode and / or the geometry of the oscillating weight and / or the winding torque of the oscillating weight.
- one of the two parts 10, 20, in particular the one which moves may comprise an end of the mass configured so 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 needle is made integral with a sun wheel, for example the wheel 34.
- This indicator can be indexed with a graduation or any other equivalent means which can for example appear at the level of the watch face, 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 locations on the face , for example by means of a needle or an indicator disc, or even on a side of the box for example by means of a disc visible through a window.
- the wheels of the differential mechanism can be dimensioned so that the parts 10, 20 are
- 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.
- FIG. 7A illustrates a top view of another embodiment of the oscillating mass 1 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 FIG. 1A.
- FIG. 7B illustrates a top view of the embodiment of the oscillating mass of FIG. 7A, in which the first part 10 of the mass 1 occupies a second position relative to the second part 20.
- the first part 10 is opposite to the second part 20, in a similar manner to FIG. 1 B.
- the arrows F1, F2 indicate the direction of angular displacement of the first part 10 relative to the second part 20 (90 ° in the example illustrated) respectively of the differential mechanism 30.
- FIG. 8 illustrates a perspective view of a part of another embodiment of the oscillating mass 1 according to the invention.
- the differential mechanism 30 it is possible to see an 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 first satellite wheel 33a illustrated comprises an axis of rotation 42, around which it can rotate. It is connected to the first part 10. It is arranged both to rotate around the axis of rotation 42 and to rotate around a wheel
- the intermediate wheel 32 is therefore a connecting wheel.
- the intermediate wheel 32 in the example of Figure 8 has the function of planet carrier. It meshes with a first central wheel 31 which has the function of a solar wheel, around which one or more satellites can rotate.
- 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 includes a second satellite wheel 33b, which in the illustrated case is coaxial with the first satellite wheel 33a.
- This second satellite wheel 33b is connected to the second part 20. It is arranged both to rotate around the axis of rotation 42 and to rotate 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 solar wheel, around which one or more satellites can rotate.
- the first intermediate wheel 32 is coaxial with the second intermediate wheel 35.
- these wheels share the axis of rotation 43.
- the oscillating weight 1 also includes a frame 80 which includes a central portion 81, substantially straight 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 satellite wheels 33a, 33b and the end 83 carries the axis of rotation 43 of the first and second intermediate wheels 32, 35
- the chassis 80 is arranged to rotate about 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, includes an opening 84, to lighten the weight.
- the end 83 of the chassis 80, which carries the axis of rotation 43 of the first and second intermediate wheels 32, 35 includes a toothing 89 in order to be able to mesh with a pilot wheel 90.
- the pilot wheel 90 includes an opening 94 to lighten the weight.
- the oscillating mass 1 of Figures 7A, 7B and 8 is based on a differential principle.
- the gear train sewritable wheels 33a, 33b, intermediate wheels 32, 35
- the chassis 80 drives the two satellite wheels 33a, 33b linked together, thus generating a rotation of at least one wheel
- the first satellite wheel 33a is smaller than the second satellite wheel 33b; the first wheel
- the second satellite wheel 33b, the second intermediate wheel 35 and the second solar wheel 34 belong to the same foreground; the second satellite wheel 33b, the second intermediate wheel 35 and the second solar wheel 34
- the movement of the pilot wheel 90 causes the movement of the end 83 of the frame 80, in particular its rotation about the axis 43.
- This rotation causes the rotation of the second satellite wheel 33b about 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 solar wheel 34
- the latter in turn rotates around the axis of rotation 42, thereby rotating the second part 20 around the same axis of rotation 42.
- the movement of the pilot wheel 90 causes the movement of the end 83 of the chassis 80, in particular its rotation about the axis 43.
- This rotation in a mode embodiment, causes the first satellite wheel 33a to rotate about its axis 42.
- the first satellite wheel 33a meshes with the first intermediate wheel 32
- the latter in turn rotates around the axis of rotation 43, the second wheel intermediate 35 remaining fixed. Since the first intermediate wheel 32 meshes with the first sun wheel 31, the latter turns in turn around the axis of rotation 42, thereby rotating the first part 10 around the same axis of rotation 42.
- FIG. 9 illustrates a top view of the control mechanism 100 of an embodiment of the oscillating mass according to the invention, in a first rest position.
- a shuttle principle was used, thus making it possible to select two states of positioning of a part 10, 20 relative to the other 20, 10, with a two-way angular displacement.
- control mechanism 100 comprises a cam 101 coaxial with the pilot wheel 90 (not visible), a spout 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 spout 103 approaches the cam 101, it will follow the slope 1013 of the cam 101 in order to push it and suddenly change the relative position of parts 10, 20.
- FIG. 13 illustrates a top view of the piloting mechanism of FIG. 9, in a position of support of the spout 103 on the cam 101 for unlocking.
- the spout 103 slides on the cam 101
- FIG. 14 illustrates a top view of the piloting mechanism of FIG. 9, in a second stop position and with the pilot wheel 90.
- the oscillating mass 1 comprises a device making it possible to check whether the acceleration of the oscillating mass 1 in the context of a configuration like that of FIG. 1A, and in any case in the part of a different configuration of the
- This device can be completely mechanical
- electromechanical and / or electronic for example an accelerometer.
- this device could include an element connected to one of the two parts 10, 20 so that during an acceleration of the oscillating mass 1 below a certain threshold, it does not 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 movement of a part 10 , 20 relative to each other so that the movement of the mass does not go up the source of energy of the watch.
- it is thus possible to vary the geometry of the oscillating weight automatically, without the intervention of the user, thus avoiding damaging the watch if the user has not changed the mode of operation of the watch before the watch undergoes significant acceleration.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Devices (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01345/18A CH715510A1 (en) | 2018-11-02 | 2018-11-02 | Oscillating weight with variable geometry for a watch mechanism. |
PCT/IB2019/059428 WO2020089877A1 (en) | 2018-11-02 | 2019-11-04 | Oscillating weight with variable geometry for a timepiece mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3874331A1 true EP3874331A1 (en) | 2021-09-08 |
EP3874331B1 EP3874331B1 (en) | 2022-09-21 |
Family
ID=65903853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19798135.0A Active EP3874331B1 (en) | 2018-11-02 | 2019-11-04 | Oscillating weight with variable geometry for a timepiece mechanism |
Country Status (6)
Country | Link |
---|---|
US (1) | US11892806B2 (en) |
EP (1) | EP3874331B1 (en) |
JP (1) | JP7518823B2 (en) |
CN (1) | CN113227913B (en) |
CH (1) | CH715510A1 (en) |
WO (1) | WO2020089877A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114158968B (en) * | 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) | Pediatric nursing and cleaning device and application method thereof |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2593685A (en) * | 1948-03-15 | 1952-04-22 | Maar Zvonko | Timepiece winding device |
CH317534A (en) * | 1954-05-06 | 1956-11-30 | Bueren Watch Company S A | Weight for automatic watch |
CH692539A5 (en) | 2000-03-15 | 2002-07-15 | Paul Gerber Uhren Konstruktion | Winding device for watches |
EP1445668B1 (en) | 2003-02-04 | 2009-07-15 | Vaucher Manufacture Fleurier SA | Oscillating weight |
EP1826633B1 (en) | 2006-02-22 | 2009-01-21 | Blancpain S.A. | Self-winding watch with power reserve indicator |
ATE418751T1 (en) | 2006-10-31 | 2009-01-15 | Swatch Group Man Serv Ag | VIBRATION MASS FOR RECHARGING THE ENERGY SOURCE OF A PORTABLE INSTRUMENT |
CN101587099B (en) | 2008-05-21 | 2012-03-28 | 鸿富锦精密工业(深圳)有限公司 | Method for manufacturing surface acoustic wave sensor |
EP2360535B1 (en) * | 2010-02-24 | 2012-12-05 | Blancpain S.A. | Oscillating weight of a mouvement with automatic winding comprising a power reserve indicator built into said oscillating weight |
JP5731872B2 (en) * | 2011-03-30 | 2015-06-10 | セイコーインスツル株式会社 | Rotating weight for timepiece and timepiece having the rotating weight |
CH705252B1 (en) | 2011-07-07 | 2015-11-30 | Blancpain Sa | watch movement comprising means for displaying a physical quantity. |
CH707942B1 (en) | 2013-04-24 | 2017-12-15 | Montres Corum Sàrl | Automatic winding mechanism for a watch movement comprising at least two winding masses. |
-
2018
- 2018-11-02 CH CH01345/18A patent/CH715510A1/en unknown
-
2019
- 2019-11-04 US US17/289,615 patent/US11892806B2/en active Active
- 2019-11-04 EP EP19798135.0A patent/EP3874331B1/en active Active
- 2019-11-04 WO PCT/IB2019/059428 patent/WO2020089877A1/en active Search and Examination
- 2019-11-04 JP JP2021523751A patent/JP7518823B2/en active Active
- 2019-11-04 CN CN201980087594.5A patent/CN113227913B/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11892806B2 (en) | 2024-02-06 |
CH715510A1 (en) | 2020-05-15 |
JP7518823B2 (en) | 2024-07-18 |
WO2020089877A1 (en) | 2020-05-07 |
EP3874331B1 (en) | 2022-09-21 |
CN113227913A (en) | 2021-08-06 |
US20210373495A1 (en) | 2021-12-02 |
CN113227913B (en) | 2022-12-16 |
JP2022506398A (en) | 2022-01-17 |
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