EP3373081A1 - Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist - Google Patents

Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist Download PDF

Info

Publication number: EP3373081A1
Authority: EP; European Patent Office
Prior art keywords: magnetic; rocker; magnet; movable element; torque
Prior art date: 2017-03-06
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

Application number

EP17159366.8A

Other languages

English (en)

French (fr)

Other versions

EP3373081B1 (de

Inventor

Davide Sarchi

Deirdré LENOIR

Benoît LÉGERET

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.)

Montres Breguet SA

Original Assignee

Montres Breguet SA

Priority date (The priority date 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 date listed.)

2017-03-06

Filing date

2017-03-06

Publication date

2018-09-12

2017-03-06 Application filed by Montres Breguet SA filed Critical Montres Breguet SA

2017-03-06 Priority to EP17159366.8A priority Critical patent/EP3373081B1/de

2018-02-27 Priority to JP2018032815A priority patent/JP6486520B2/ja

2018-02-27 Priority to US15/905,856 priority patent/US10520891B2/en

2018-03-06 Priority to CN201810184035.3A priority patent/CN108535997B/zh

2018-09-12 Publication of EP3373081A1 publication Critical patent/EP3373081A1/de

2021-05-26 Application granted granted Critical

2021-05-26 Publication of EP3373081B1 publication Critical patent/EP3373081B1/de

Status Active legal-status Critical Current

2037-03-06 Anticipated expiration legal-status Critical

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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
- G04B33/00—Calibers
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement

Definitions

the present invention relates to a timepiece provided with a device for positioning a mobile element in a plurality of discrete positions.
the invention relates to a device for positioning a date ring in a plurality of display positions.
the disks or rings for displaying calendar data are held in any position of the plurality of display positions by a jumper (also called spring-jumper).
This jumper continually press against a toothing of the disc or the ring in question.
the jumper deviates from the toothing by being rotated in a direction opposite to the restoring force exerted by the spring of the jumper.
the toothing is configured so that the torque exerted on the jumper by its spring is minimal in the display positions and that when driving the disc or the ring, the jumper passes through a peak torque .
the dimensioning of the disks or calendar rings, in particular the date rings, in the watch movements is difficult because of the compromise to be found between guarantee the positioning function and minimize the energy consumption of the system when switching from one display position to another.
the spring can not be too flexible because it is necessary to ensure the immobilization of the disk or the ring, but it can not be excessively rigid because it would generate then a very important couple to provide by a mechanism of the watch movement. In the latter case, the drive mechanism of the disk or the ring can be bulky and there is a significant loss of energy for the energy source incorporated in the watch movement during the drive of this disc or this ring.
the present invention relates to a watch movement comprising a movable element, capable of being driven along an axis of displacement and of being immobilized momentarily in any stable position among N discrete stable positions, and a device for positioning this movable element in each of these N stable positions, N being a number greater than one (N> 1). It is intended to provide an effective positioning device, namely which ensures positioning in stable positions, and which consumes relatively little energy to move from a stable position to a next stable position.
the positioning device comprises a rocker, capable of coming into contact with the movable element, and a magnetic system formed of a first magnet integral with the rocker and arranged at the periphery of the mobile element, N second magnets secured to this movable element and arranged along an axis of displacement so as to define magnetic periods respectively corresponding to the distances between the N discrete stable positions, and a high magnetic permeability element arranged in front of a polar end of the first magnet located on the side of the movable element.
the magnetic system is arranged so that, when the movable member is driven along its axis of movement from any stable position to a next stable position, a first magnetic torque, exerted on the rocker carrying the first magnet by the magnetic system, presents a first direction on a first section and a second direction, opposite the first direction, on a second section of the corresponding distance, the first direction corresponding to a pair that presses the rocker against the mobile element while the second direction tends to move away the rocker of this mobile element.
the magnetic system is arranged such that, for each of the N discrete stable positions, the first magnetic torque is applied in the first direction.
the first magnet and the second magnets are arranged obliquely relative to the axis of movement of the movable element.
the polarity of the first magnet is substantially opposite to that of the second magnets when they are successively opposite the first magnet.
the respective magnetic axes of the first magnet and the second magnets each have substantially the same angle with the axis of displacement.
the magnetic system 2 comprises a first fixed magnet 4, a high magnetic permeability element 6 and a second magnet 8 which is movable along an axis of displacement here confused with the alignment axis 10 of these three magnetic elements, relative to the assembly formed by the first magnet 4 and the element 6.
the element 6 is arranged between the first magnet and the second magnet, close to the first magnet and in a position determined in relation to it.
the distance between the element 6 and the magnet 4 is less than or substantially equal to one-tenth of the length of this magnet along its axis of magnetization.
the element 6 is constituted for example of a carbon steel, tungsten carbide, nickel, FeSi or FeNi, or other alloys with cobalt as the Vacozet ® (CoFeNi) or Vacoflux ® (CoFe).
this element with high magnetic permeability consists of a metal glass based on iron or cobalt.
Element 6 is characterized by a saturation field Bs and a permeability ⁇ .
the magnets 4 and 8 are for example ferrite, FeCo or PtCo, rare earths such as NdFeB or SmCo. These magnets are characterized by their remanent field Br1 and Br2.
the element with high magnetic permeability 6 has a central axis which is preferably substantially coincidental with the magnetization axis of the first magnet 4 and also with the magnetization axis of the second magnet 8, this central axis being here confused with the alignment axis 10.
the respective magnetization directions of the magnets 4 and 8 are opposite. These first and second magnets therefore have opposite polarities and they are likely to undergo relative movement between them over a certain relative distance.
the distance D between the element 6 and the movable magnet 8 indicates the distance of this movable magnet relative to the assembly formed by the two other elements of the magnetic system. Note that the axis 10 is provided here linear, but this is a non-limiting variant.
the axis of displacement can also be curved, as in the embodiments that will be described later.
the central axis of the element 6 is preferably approximately tangent to the curved displacement axis of the moving magnet and thus the behavior of such a magnetic system is, in a first approximation, similar to that of the magnetic system described here. This is all the more true as the radius of curvature is large relative to the maximum possible distance between the element 6 and the movable magnet 8.
the element 6 has dimensions in a plane orthogonal to the central axis 10 which are greater than those of the first magnet 4 and those of the second magnet 8 in projection in this orthogonal plane.
the second magnet advantageously comprises a cured surface or a thin layer of hard material on its surface.
the two magnets 4 and 8 are arranged in magnetic repulsion so that, in the absence of the element with high magnetic permeability 6, a magnetic repulsion force tends to move these two magnets away from each other. Surprisingly, however, the arrangement between these two magnets of the element 6 reverses the direction of the magnetic force exerted on the moving magnet when the distance between this movable magnet and the element 6 is sufficiently small, so that the moving magnet then undergoes a magnetic attraction force.
Curve 12 of the Figure 2 represents the magnetic force exerted on the moving magnet 8 by the magnetic system 2 as a function of the distance D between the movable magnet and the element with high magnetic permeability.
the moving magnet undergoes, on a first range D1 of the distance D, generally a magnetic attraction force which tends to keep the movable magnet against the element 6 or to bring it back to it in case of distance, this global force of attraction resulting from the presence of the element with high magnetic permeability (in particular ferromagnetic) between the two magnets, which allows a reversal of the magnetic force between two magnets arranged in magnetic repulsion, whereas this mobile magnet undergoes, on a second range D2 of the distance D, globally a magnetic repulsion force.
This second range corresponds to distances between the element 6 and the magnet 8 which are greater than the distances corresponding to the first range of the distance D.
the second range is practically limited to a maximum distance D max which is generally defined by a stop limiting the distance of the moving magnet.
the magnetic force exerted on the moving magnet is a continuous function of the distance D and therefore has a value of zero at the distance D inv for which this magnetic force is inverted ( Figure 2 ).
the inversion distance D inv is determined by the geometry of the three magnetic parts forming the magnetic system and by their magnetic properties. This inversion distance can therefore be selected, to a certain extent, by the physical parameters of the three magnetic elements of the magnetic system 2 and by the distance separating the fixed magnet from the ferromagnetic element 6. The same applies to the evolution of the slope of the curve 12, the variation of this slope and in particular the intensity of the attraction force when the moving magnet approaches the ferromagnetic element can thus be adjusted.
the element with high magnetic permeability 34 is carried by the rocker 26 and is therefore integral with the first magnet 30 in front of which it is arranged.
This element 34 is aligned with the direction of the magnetic axis 31 of the first magnet 30. It can be glued against the end surface 36 of this first magnet.
This element is for example made of a ferromagnetic material.
the first magnet and the second magnets 32 are arranged obliquely relative to the axis of displacement 24.
the respective magnetic axes 31 and 33 of the first magnet and the second magnets are parallel to an oblique axis 38. They thus each have substantially one same angle with the axis of displacement.
the first magnet has a polarity opposite to that of each of the second magnets which presents itself opposite it in a different discrete stable position.
the latter characteristic generally means that, in projection on the oblique axis 38, the polarity of the first magnet is reversed relative to the polarities of the second magnets.
the watch movement comprises a first fixed stop 40.
it comprises a second fixed stop 42 which limits the rotation of the contact part of the rocker, more generally of the magnetic assembly formed of the first magnet and the high magnetic permeability element, in a direction away from it relative to the movable element.
the magnetic system 28 takes advantage of the physical phenomenon described above in connection with the Figures 1 and 2 . Its operation is shown by the sequence of Figures 3A to 3D .
the movable element 22 is in a stable position P n-1 .
Each stable position is defined in particular by the magnets 32 fixedly supported by the movable element, in particular by the periodic arrangement of these magnets 32 which define the magnetic period P M , which corresponds to the displacement distance of the movable element for move from any stable position to a stable next position.
each stable position of the movable element is given by a configuration in which the rocker is in its closed position and a second different magnet bearing against the magnetic element 34. It will be noted that an arm of the rocker passes between the two pins, so that the rotational movement about its axis of rotation 27 is limited in both directions respectively by these two pins.
the open position of the rocker corresponds to a configuration where the rocker bears against the second pin 42. It will be described in more detail later.
the Figures 3B to 3D show, for the first embodiment, the operation of the magnetic positioning device of the movable member 22 when the latter is driven by a drive mechanism (known to those skilled in the art) of any stable position (position P n-1 ) at a next stable position (position P n ).
the Figure 3B shows a state of the magnetic system 28 for which the magnetic force exerted on the rocker has decreased and its orientation has changed relative to the magnetic force of positioning of the Figure 3A .
the magnetic torque that is exerted on the rocker has just changed direction, going from a clockwise direction to a counterclockwise direction.
the rocker is no longer supported against the pin 40 and it begins to undergo an opening rotation (rotation about the axis 27 in the counterclockwise direction).
the opening is performed quickly, that is to say on a short distance of movement of the movable element and the rocker then passes to its open position represented at Figure 3C .
the magnetic force exerted on the magnetic assembly carried by the rocker is a magnetic repulsion force. It is therefore observed that the magnetic force exerted on this magnetic assembly is a vector which rotates as a function of the position of the movable element between two stable positions.
a magnetic force is thus obtained in attraction, for the discrete stable positions in which the mobile element is positioned by virtue of this magnetic attraction force, with a magnetic force in repulsion on an intermediate section between the discrete stable positions.
This phenomenon is made possible by the presence of the magnetic element 34 between the first magnet 30 and a second magnet 32 located opposite the magnetic element, as explained previously using the Figures 1 and 2 .
the magnetic positioning device is remarkable in that it not only ensures the positioning of the movable element in each of its stable positions, but in addition it opens the rocker during training and thus momentarily removes any pressure from this flips against the movable element, the latter then being free and can be moved on a certain section without mechanical stress from the rocker.
the automatic opening of the rocker allows the magnetic assembly to then come opposite a second adjacent magnet to move to a next stable position, as shown in FIG. 3D Figure .
This 3D Figure represents a state, during the driving of the movable element, for which the global magnetic force exerted on the rocker has decreased again and its orientation generates again a magnetic torque on the rocker which brings it back to its position closed.
the magnetic system quickly returns to a state corresponding to that of the Figure 3A and for which the movable element is again in a stable position with a second magnet in contact with the magnetic element and the rocker bearing against the pin 40.
the positioning device is arranged so that, when the movable element is driven along its axis of displacement from any stable position to a next stable position, a first magnetic torque exerted on the flip-flop carrying the first magnet has a first direction on a first section and a second direction, opposite the first direction, on a second section of the corresponding distance, the first direction defining a return torque towards the mobile element for a part. contact of the rocker.
the magnetic system is arranged such that, for each of the N discrete stable positions, the first aforementioned magnetic torque is applied in said first direction.
the watch movement of the second embodiment is distinguished from the first embodiment firstly by the fact that the movable element comprises, in place of the first pin, a toothing 48 against which a contact portion 46 of the flip-flop 26A at least when the magnetic torque is applied clockwise to this flip-flop, and secondly by the fact that the flip-flop 26A is associated with a spring 52 which exerts, at least on an intermediate section between two stable positions of the mobile element 22A, an elastic force on the rocker so as to generate a mechanical return torque which pushes the contact portion 46 of the rocker towards the movable member.
the positioning device 44 is arranged in such a way that the overall magnetic force 50 exerted on the magnetic assembly carried by the rocker has an orientation substantially perpendicular to the direction of movement of the movable element when the contact part (part end) of the rocker is located at the bottom of the toothing, that is to say in a hollow between two adjacent teeth, as shown in FIG. Figure 4A .
the magnetic torque in this state defines a return torque in the direction of the movable element, the overall magnetic force that applies to the rocker then being a magnetic attraction force.
the toothing and the rocker are arranged so that the contact portion 46 of the rocker is located at the bottom of the toothing for each of the N discrete stable positions of the movable member.
the Figure 4B shows an intermediate state of the positioning device 44 when passing from a stable position to a next stable position.
the toothing 48 in addition to holding the rocker in its closed position shown in FIG. Figure 4A to position the movable member, moves its end portion 46 away from the movable member when the movable member is driven from a stable position. Indeed, the rocker must withdraw to passing over a tooth of the toothing, the contact portion 46 climbing for this purpose a flank of the adjacent tooth.
the distance between the magnetic assembly carried by the rocker and the magnet 32, ensuring the positioning in the stable position increases more rapidly than in the case of the first embodiment, which has the consequence that the magnetic force vector turns quickly and the distance over which a magnetic torque is applied to the rocker clockwise (first direction) decreases and becomes relatively short.
the elastic force exerted by the spring 52 increases during the passage of the contact portion over the tooth.
the elastic force of the spring is relatively low, or almost zero in the stable positions.
the rigidity of the spring is chosen so that the rocker moves away only slightly from the toothing when the magnetic torque applied to the rocker changes direction (second direction) or so that the rocker remains continuously in contact with the teeth during a transition from a stable position to a next stable position.
the magnetic system, the tooth profile and the spring stiffness can be optimized so as to minimize the mechanical stresses on the contact part of the rocker, so that the magnetic torque exerted counterclockwise (second direction) is substantially compensated by the mechanical torque of the spring which is exercised in the opposite direction, namely in the clockwise direction.
the toothing also has the advantage of ensuring a correct passage and without risk of blocking from one stable position to another. Indeed, the contact portion can not be blocked by a magnet 32, because the magnets 32 are arranged so as not to project out of the profile of the toothing.
FIG. 5A to 5C relate to a first variant similar to the second mode of claim.
a second variant without spring and without teeth is also provided, which is similar to the first embodiment.
This third embodiment is distinguished mainly of the two previous embodiments in that the movable element has an annular shape, this movable element being arranged to rotate on itself so that the axis of displacement is a circular axis.
the moving element is here a ring of dates. More generally, the mobile element forms a display medium for a calendar data item.
the references already described will not be described again here and the references corresponding to elements already described will not be described here in detail. Reference is made to the preceding figures.
the Figure 5A shows the date ring 22B and the positioning device in a state corresponding to a stable display position of this ring.
the magnetic system and the toothing 48B are arranged so that, in this display position, the contact portion 46B is inserted into a notch 56 of the toothing 48B, and for the overall magnetic force to be exerted on the assembly.
magnetic carried by the flip-flop 26B is radial, that is to say perpendicular to the circular displacement axis 24B of the ring.
the toothing here has a generally circular profile with a plurality of notches defining the display positions.
the first magnet has a polarity substantially opposite to that of each of the second magnets which presents itself opposite it in a different discrete stable position.
the magnetic system exerts, in response to the magnetic force exerted on the rocker, a magnetic force on the ring by means of the magnets 32 which are fixed to this ring.
the magnetic force acting on the magnets 32 generates a second magnetic torque which applies directly to the ring.
this second magnetic torque has a substantially zero value, corresponding to a stable magnetic equilibrium position for the movable element, while the first magnetic torque applied to the rocker is in the first direction, it is that is to say in a direction that pushes the contact portion 46B towards the ring and in particular of its teeth 48B.
the ring and the rocker are arranged so that each of the N discrete stable positions of the ring substantially corresponds to a stable magnetic position, as is the case with Figure 5A .
FIG. Figure 5B shows a state where flip-flop 26B is in an open position.
the first magnetic torque applied to the rocker is here in the clockwise direction (which is equivalent in the third embodiment in the second direction) and is greater than the mechanical torque generated by the spring 52.
This mechanical torque defines a return torque in direction of the teeth 48B.
this return torque is of low value, its role being to ensure that the latch can return to a position where the magnetic assembly that it carries undergoes again a magnetic attraction force and can thus return to a closed position when the end portion 46B arrives in front of a new notch 56 when moving to a new stable display position.
the force of the spring is dimensioned to ensure that the contact portion of the rocker rests against a circular segment of the profile of the toothing.
no spring is associated with the rocker.
the latter may advantageously consist of a ferromagnetic material.
the magnet 30 is then attracted by the pin when it approaches.
the Figure 5C corresponds to a state close to the inversion of the magnetic force which applies to the magnetic assembly carried by the rocker.
the first magnetic torque then begins to exercise again in the first direction and to recall the end portion of the rocker towards the ring.
the rocker returns to rest against the toothing 48B and finally its end portion penetrates the next notch to position the date ring in a next display position (one finds oneself in a situation corresponding to the Figure 5A ).
the Figures 6 and 7 relate to the magnetic torques respectively applied to the latch and to the date ring of the third embodiment, in a variant without toothing and without spring for the curve of the functional magnetic torque acting on the latch. Note that similar curves are observed for the flip-flop and the movable element of the first embodiment.
the remanent field of the magnets (Neodymium Iron Bore) has a value of 1.35 T and the saturation field of the ferromagnetic material element (Vacoflux®) is 2.2 T.
a first curve 60 giving the magnetic torque exerted on the rocker when the latter is in its open position and the ring is driven over a distance slightly greater than an angular period
a second curve 62 giving the magnetic torque exerted on the rocker when the latter is in its closed position, for an angular path identical to that of the curve 60
a third curve 64 representing approximately the functional magnetic torque applied to the rocker over each angular period, this functional magnetic pair defining the first magnetic torque.
the curve 62 is theoretical since the latch can not be maintained in a closed position during an angular displacement of the ring over an angular period in the presence of the ring with its magnets 32.
the curve 64 of the couple functional is an approximation of the actual behavior since the position of the rocker does not only depend on the first magnetic torque but also the profile of the toothing 48B, the profile of the end portion 46B of this rocker and the mechanical torque generated by the spring 52 (note that the couple represented functional corresponds to a realization without spring and without teeth).
the notches 56 have a profile designed to mechanically position the ring with a small clearance and hold it correctly in the display positions.
the curve 64 joins the curve 62 only in the angular areas close to the stable display positions P n .
the functional magnetic torque corresponds substantially to that of the curve 62 for each of the display positions P n .
the first direction corresponds to a restoring torque in the direction of the mobile ring for the contact part of the rocker, while the second direction tends to move this contact part away from the ring and in particular from its toothing 48B.
the magnetic system is arranged such that, for each position P n of the N discrete stable positions (display positions), the first magnetic torque is exerted in the aforementioned first sense.
the first magnetic torque (functional torque 64) has a maximum negative value (in absolute value) for an angular position close to each discrete stable position P n .
this maximum negative value is reached substantially at each discrete stable position P n .
a first curve 66 giving the magnetic torque applied directly to the mobile ring when the rocker is in an open position and this ring is driven at the same angular distance as at the Figure 6 ; a second curve 68 giving the magnetic torque applied directly to the ring when the rocker is in a closed position; and a third curve 70 representing the functional magnetic torque applied directly to the ring over each angular period, this functional magnetic pair defining a second magnetic pair occurring in the positioning device of the invention.
the curve 68 is theoretical, since the latch can not be maintained in a closed position during a drive of the ring over an angular period.
the curve 70 of the functional pair is an approximation of the real behavior in a variant with a toothing and / or a spring.
the second magnetic torque has a substantially zero value at the position P n defining the beginning of an angular period between two display positions.
the ring 22B is in a stable magnetic position because the positive slope of the curve 70 at this position P n indicates that the second magnetic torque tends to bring the ring towards this position when it deviates from it.
the ring and the rocker are arranged so that each of the N discrete stable positions corresponds to a stable magnetic position.
the first magnetic torque is applied to the latch in the first direction when the ring is in any position of stable magnetic equilibrium.
the first magnetic torque applied to the latch has, in absolute values, a value greater than two thirds of the maximum value of this first magnetic torque in the first section.
the second magnetic pair 70 presents in each angular period a positive value on a first section and a negative value on a second section. Note that the magnetic force is conservative.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Reciprocating, Oscillating Or Vibrating Motors (AREA)
Transmission Devices (AREA)
Electromechanical Clocks (AREA)
Electromagnets (AREA)

EP17159366.8A 2017-03-06 2017-03-06 Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist Active EP3373081B1 (de)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
EP17159366.8A EP3373081B1 (de)	2017-03-06	2017-03-06	Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist
JP2018032815A JP6486520B2 (ja)	2017-03-06	2018-02-27	複数の離散的な位置に可動要素をポジショニングするデバイスを備える計時器用ムーブメント
US15/905,856 US10520891B2 (en)	2017-03-06	2018-02-27	Timepiece movement provided with a device for positioning a moveable element in a plurality of discrete positions
CN201810184035.3A CN108535997B (zh)	2017-03-06	2018-03-06	设有定位装置的钟表机芯

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP17159366.8A EP3373081B1 (de)	2017-03-06	2017-03-06	Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist

Publications (2)

Publication Number	Publication Date
EP3373081A1 true EP3373081A1 (de)	2018-09-12
EP3373081B1 EP3373081B1 (de)	2021-05-26

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Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17159366.8A Active EP3373081B1 (de)	2017-03-06	2017-03-06	Uhrwerk, das mit einer vorrichtung zur positionierung eines mobilen elements in einer vielzahl von diskreten positionen ausgestattet ist

Country Status (4)

Country	Link
US (1)	US10520891B2 (de)
EP (1)	EP3373081B1 (de)
JP (1)	JP6486520B2 (de)
CN (1)	CN108535997B (de)

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US4409576A (en) *	1982-02-03	1983-10-11	Polaroid Corporation	Method and apparatus which change magnetic forces of a linear motor

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CH575614B5 (de) *	1971-02-09	1976-05-14	Omega Brandt & Freres Sa Louis
JPS54113368A (en) *	1978-02-23	1979-09-04	Seiko Epson Corp	Watch
IT225277Z2 (it) *	1991-03-27	1996-10-24		Orologio a sveglia, da parete o inserito in zainetti o simili, componibile
WO2000054113A1 (fr) *	1999-03-08	2000-09-14	Seiko Epson Corporation	Dispositif d'enclenchement pour convertisseur electromagnetique, et dispositif horloge

2017
- 2017-03-06 EP EP17159366.8A patent/EP3373081B1/de active Active
2018
- 2018-02-27 JP JP2018032815A patent/JP6486520B2/ja active Active
- 2018-02-27 US US15/905,856 patent/US10520891B2/en active Active
- 2018-03-06 CN CN201810184035.3A patent/CN108535997B/zh active Active

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2221764A1 (de) *	1973-03-14	1974-10-11	Union Horlogere Gros Volume
US4409576A (en) *	1982-02-03	1983-10-11	Polaroid Corporation	Method and apparatus which change magnetic forces of a linear motor

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Publication number	Publication date
JP2018146575A (ja)	2018-09-20
CN108535997A (zh)	2018-09-14
EP3373081B1 (de)	2021-05-26
US20180253060A1 (en)	2018-09-06
CN108535997B (zh)	2020-04-10
JP6486520B2 (ja)	2019-03-20
US10520891B2 (en)	2019-12-31

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EP3106933B1 (de)	2018-08-22	Magnetischer schwenkeinrichtung einer welle in einem uhrwerk
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