EP4020100A1 - Uhr, die einen drehbaren aussenring umfasst - Google Patents

Uhr, die einen drehbaren aussenring umfasst Download PDF

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Publication number
EP4020100A1
EP4020100A1 EP20217190.6A EP20217190A EP4020100A1 EP 4020100 A1 EP4020100 A1 EP 4020100A1 EP 20217190 A EP20217190 A EP 20217190A EP 4020100 A1 EP4020100 A1 EP 4020100A1
Authority
EP
European Patent Office
Prior art keywords
angular
series
pole parts
equal
rotating bezel
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
Application number
EP20217190.6A
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English (en)
French (fr)
Other versions
EP4020100B1 (de
Inventor
Marc Stranczl
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.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP20217190.6A priority Critical patent/EP4020100B1/de
Priority to US17/519,108 priority patent/US20220206438A1/en
Priority to JP2021198348A priority patent/JP7386837B2/ja
Priority to CN202111599802.5A priority patent/CN114675520A/zh
Publication of EP4020100A1 publication Critical patent/EP4020100A1/de
Application granted granted Critical
Publication of EP4020100B1 publication Critical patent/EP4020100B1/de
Active legal-status Critical Current
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
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • G04B1/20—Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel

Definitions

  • the present invention relates to the watchmaking field, in particular timepieces provided with a rotating bezel.
  • the object of the present invention is to solve the drawbacks mentioned in the technological background, and in particular to propose a timepiece provided with a rotating bezel with a magnetic device between the bezel and the casing part supporting this rotating bezel which is arranged in such a way that the resisting magnetic torque varies as a function of the stable angular position, c ie at least two levels/two different values for the plurality of stable angular positions provided.
  • the present invention proposes to achieve the aforementioned object by means of a magnetic device which is not very complex, relatively inexpensive and compact, and which is easily realizable in a case with conventional dimensions for a watch with a rotating bezel. .
  • the timepiece comprises a magnetic device composed of a first set of first pole parts carried fixedly by the rotating bezel and of a second set of second pole parts carried fixedly by the covering part.
  • the first set of first pole parts and the second set of second pole parts are each arranged circularly so that the first pole parts have a magnetic interaction with the second pole parts which generates on the rotating bezel a resistant magnetic torque when this rotating bezel is driven in rotation, at least in a given direction, from any one of the N stable angular positions towards a following stable angular position, that is to say adjacent, this resistive magnetic torque being exerted on at least part of the angular path , equal to an angular step, which separates these two stable angular positions.
  • the timepiece according to the invention is characterized in that the number Z1 of first pole parts is greater than one and less than N (1 ⁇ Z1 ⁇ N) and the number Z2 of second pole parts is also greater than one and less than N (1 ⁇ Z2 ⁇ N); and in that the first set of Z1 first pole parts is distributed among N first angular positions, linked to the rotating bezel and having said angular pitch between them, with at most one first pole part per first angular position, and the second set of Z2 second pole parts is distributed among N second angular positions, linked to said casing part and having between them said angular pitch, with at most one second pole part per second angular position, so that said resistive magnetic torque has a variation in function of the stable angular position of the rotating bezel, among the N stable angular positions, at least according to said given direction for the rotation of this rotating bezel.
  • resistant magnetic torque is understood as being a resistant torque exerted on the rotating bezel which results from the magnetic forces between the two sets of pole parts.
  • this resistive magnetic torque can be formed at least in part by a resistive torque originating from a frictional force between the rotating bezel and a casing part which results from said magnetic forces.
  • the first pole parts are magnetically similar and the second pole parts are magnetically similar. Then, the numbers Z1 and Z2 are selected and the distribution of the first set of Z1 first pole parts, among the N first angular positions, as well as the distribution of the second set of Z2 second pole parts, among the N second angular positions, are carried out so that said variation of the resistive magnetic torque is periodic.
  • the magnetic device is arranged so that the periodic variation of the resistive magnetic torque has an angular period equal to an integer K of angular steps, this integer K being greater than one and selected so that the division of the integer N by the number K is equal to a positive integer M. Then the numbers Z1 and Z2 are selected and said distribution of the first set of Z1 first pole parts together with the distribution of the second set of Z2 second pole parts are made so that said variation of the resistive magnetic torque has, for said given direction of rotation of the rotating bezel, substantially two distinct non-zero values.
  • the watch 2 comprises a case 4 provided with a rotating bezel 6, which can be rotated by a user, and a magnetic device 20 associated with this rotating bezel.
  • the rotating bezel and the magnetic device are arranged so that the rotating bezel can be positioned in sixty angular positions which have between them an angular pitch ⁇ equal to 6° (equal to 360°/60).
  • a reference point of the rotating bezel can be positioned at any minute of a minute scale centered on the axis of rotation of the rotating bezel, as is customary for a mechanical or electromechanical watch which is equipped with a rotating bezel.
  • N stable angular positions
  • the rotating bezel 6 is mounted on a middle part 8, forming a casing part of the watch, and held in place by means of a spring 10 inserted partly into an internal lateral groove of the middle part and partly into a lateral groove inside the rotating bezel.
  • a glass 12 is also partially shown, carried by a fixed internal bezel formed by an upper part of the middle part 8, as well as a frustoconical flange 14 and a dial 16 arranged on a movement 18.
  • the magnetic device 20 is arranged at the inside case 4 of the watch and is composed of a first set of first pole parts 22, which are fixedly arranged in the rotating bezel 6, and of a second set of second pole parts 24 which are fixedly arranged in the middle part 8 More specifically, the first set of first pole parts 22 and the second set of second pole parts 24 are each arranged circularly and generally opposite each other so that the first pole parts have a magnetic interaction with the second pole parts, this magnetic interaction generating on the rotating bezel a non-zero resistant magnetic torque when this rotating bezel is subjected to a rotation drive ple, in one direction or the other, from any of the sixty stable angular positions.
  • the bezel here is bidirectional, that is to say rotating in both directions. Alternatively, the bezel may be unidirectional, so that it then only rotates in a given direction.
  • the first pole parts are magnetically similar and the second pole parts are also magnetically similar.
  • the first embodiment is characterized in that the first set of first pole parts and the second set of second pole parts are formed from materials generating a magnetic attraction between this first set and this second set. Then, the N stable angular positions each correspond by positioning first pole parts respectively opposite second pole parts. In the absence of a mechanical device associated with the magnetic device, the angular positioning of the rotating bezel is obtained thanks to the magnetic device which generates a restoring torque on the rotating bezel around each of its stable angular positions.
  • the first set of first pole parts 22 and the second set of second pole parts 24 are both formed of permanent magnets, the second set of magnets 24 being arranged in magnetic attraction with the first set of magnets 22.
  • one set among the first set of first pole parts and the second set of second pole parts is formed of permanent magnets, while the other set is formed of parts in ferromagnetic material.
  • the first main variant is advantageous in that the magnetic attraction force can be higher than in the second main variant for identical permanent magnets.
  • the second main variant can be interesting because it makes it possible to reduce the cost and the size of the magnetic device in the axial direction, the ferromagnetic parts may have a relatively small height.
  • the arrangement of the magnets 22 and the magnets 24 is axial, that is to say that they are aligned in the direction of the axis of rotation of the rotating bezel and that the orientation of the magnetic axes of these magnets is substantially parallel to this axis of rotation.
  • An axial arrangement of the two sets of pole parts, globally generating a force of attraction between the rotating bezel 4 and the middle part 8, has the advantage of pressing the rotating bezel against the middle part and thus participating in holding the bezel in place. rotating.
  • the axial force of this spring on the bezel can be provided relatively low, or even zero, so that the static friction force, then the dynamic friction force to be overcome during actuation of the rotating bezel is low.
  • the frictional force between the rotating bezel and the middle part is too high, this frictional force can then lead, when a return torque towards each stable angular position is insufficient to overcome the resistive torque generated by this frictional force, to imprecise angular positioning of the rotating bezel in the stable angular positions provided.
  • the spring 10 can be arranged so as to exert on the rotating bezel an axial force in the direction contrary to the axial magnetic force.
  • the two sets of magnets are arranged in the same general plane with a radial orientation of their respective magnetic axes (in a similar way to the variant of the second embodiment shown in Figure 6 ). It should be noted that in a particular variant, the two sets of pole parts are arranged obliquely so as to be able to thus adjust the value of an axial magnetic force applied to the rotating bezel.
  • the tangential component defines a magnetic restoring torque which tends to position the rotating bezel in one or the other of the stable angular positions provided and which forms a second resisting magnetic torque over only a first part of the aforementioned angular path. Indeed, on a second part of the angular path, the tangential component of the magnetic forces exerted respectively on the pole parts of the first set of pole parts changes direction and then generates a drive torque towards the next angular position.
  • a resistant magnetic torque is still applied overall to the rotating bezel, while on the second part of this angular path the overall magnetic torque (that is to say resulting from the magnetic forces between the two sets of pole parts) can be resistant on a first angular zone and become catchy on a second angular zone if the magnetic return torque becomes greater than the friction torque of magnetic origin.
  • the magnetic device according to the invention is characterized in that the number Z1 of first pole parts in the first set is greater than one and less than N (i.e. 1 ⁇ Z1 ⁇ N) and the number Z2 of second parts polars in the second set is also greater than one and less than N (i.e. 1 ⁇ Z2 ⁇ N).
  • the first set of Z1 first pole parts is distributed among N first angular positions, linked to the rotating bezel and having said angular pitch between them, with at most one first pole part per first angular position
  • the second set of Z2 second pole parts is distributed among N second angular positions, linked to the middle part and having said angular pitch between them, with at most one second pole part per second angular position, so that the resistive magnetic torque generated by the magnetic device presents a variation in function of the stable angular position of the rotating bezel, among the N stable angular positions, at least in a given direction for the rotation of this rotating bezel.
  • the variation of the resistant magnetic torque according to the invention is not related to the angular distance of the rotating bezel, within an angular pitch, from any stable angular position, but this variation is related to the stable angular position itself, that is to say that the resisting magnetic torque during an actuation in rotation of the rotating bezel from a stable angular position to a following stable angular position, for a zero distance and/or at least a certain distance given within the angular pitch separating these two stable angular positions, varies according to the stable angular position from which the actuation in rotation is carried out, at least for a given direction of rotation.
  • the resistive magnetic torque generated by the magnetic device 20 varies, from any angular position stable, depending on the distance of the bezel relative to this stable angular position in the patent application EP 2 998 799 . But this is not the variation that is the subject of the main characteristic of the present invention, because this variation of the resistive magnetic torque is a variation felt by the user when passing between a first stable angular position and a following stable angular position relative to the passing between a second stable angular position and a following stable angular position.
  • the variants described below will make it possible to clearly understand the variation of the resistive magnetic torque which relates to the present invention.
  • the number Z1 of first pole parts and the number Z2 of second pole parts are selected and the distribution of these Z1 first pole parts, among the N first angular positions linked to the bezel, as well as the distribution of these Z2 second pole parts, among the N second angular positions linked to the middle part, are produced such that the variation of the resistive magnetic torque is periodic, that is to say that it repeats after a certain number of angular steps.
  • the numbers Z1 and Z2 are selected and said distribution of the first set of Z1 first pole parts as well as said distribution of the second set of Z2 second pole parts are made such that the variation of the resistive magnetic torque presents, for at least one given direction of rotation of the rotating bezel, only two distinct non-zero values.
  • the magnetic device is arranged so that the resistive magnetic torque is again stronger after a rotation equal to the angular period (i.e. every five minutes), that is to say every 30° during a rotation of the rotating bezel.
  • the magnetic device 20 incorporated in a first variant of the first embodiment according to the invention will be described more particularly.
  • the number N of stable angular positions P v corresponds to the number N of angular positions which is provided for the placement of the pole parts of the bezel and also for the placement of the pole parts of the middle part.
  • Figure 2 (like the similar Figures which will be described later) has a simplified representation, separately, of the rotating bezel 6 and of the middle part 8, in order to be able to clearly represent the circular arrangement of the pole parts 22 in the bezel and of the parts 24 poles in the middle.
  • all the pole parts 22 and 24 are formed by substantially identical magnets, each magnet 22 being arranged in magnetic attraction relative to the magnets 24 when this magnet 22 is placed opposite any magnet 24.
  • Figure 3 (like the Figure 8 which is similar) is a partial linear representation of the magnetic device 20 of the Figure 1 .
  • the Figure 3 corresponds to the arrangement of the magnets 22 and 24 in a cylindrical surface with an axial orientation of these magnets
  • La Figure 8 corresponds to the arrangement of the magnets in a general plane perpendicular to the axis of rotation of the rotating bezel, with a radial orientation of these magnets as shown in Figure 6 ).
  • These twenty-four remaining magnets 22 are advantageously distributed in the four series S1 to S4 in a regular manner, presenting between them an angular distance or an interval equal to twice the angular period (2 ⁇ ).
  • the resistive magnetic torque that is to say of its intensity, as a function of the stable angular position in which the rotating bezel is initially located.
  • the resistive magnetic torque varies substantially by a factor of two, the second value mentioned above being substantially equal to half of the first value mentioned above.
  • the series S5 of magnets, or the five series S0 to S4 of magnets may/may, in another variant, be replaced by parts made of ferromagnetic material.
  • the first set of pole parts associated with the rotating bezel is formed by the toothing of a crown made of ferromagnetic material from which a few teeth have been removed to obtain a profile similar to that of the upper part shown in Figure 3 .
  • the empty holes can be eliminated in a variant of the Fig. 3 .
  • the S5 series can be composed of magnets 22 arranged in the rotating bezel, the S0 series to S4 then being composed of magnets 24 arranged in the caseband.
  • the batch of six magnets 22 placed in each of the four series S1 to S4 can be placed according to all the possibilities of placing six identical magnets among the twelve angular positions of the series considered.
  • M N/K
  • the number M is an even number and the number Y is equal to M/2.
  • the Y pole parts placed in each of said K-1 other series are preferably distributed regularly with intervals between them equal to twice the angular period, ie 2 ⁇ .
  • the third and fourth series are offset, relative to each other, by the angular pitch ⁇ while the fifth series is offset by two angular pitches, ie by 2 ⁇ , relative to each of these third and fourth series.
  • the other two remaining series, each with twelve angular positions presenting between them the angular period, are empty, that is to say without pole parts.
  • one of the two numbers Z1 and Z2 is equal to twenty-four and the twenty-four corresponding pole parts are arranged in a first series and a second series of each twelve angular positions having between them the angular period ⁇ , these first and second series being offset by two angular pitches, i.e. by 2 ⁇ , while the other of the two numbers Z1 and Z2 is equal to thirty-six and three subsets of each twelve corresponding pole parts are respectively placed in a third series, a fourth series and a fifth series of each twelve angular positions having between them the angular period ⁇ .
  • the fourth series is shifted by the angular pitch ⁇ with the third series and also with the fifth series.
  • the other two remaining series, with each twelve angular positions having between them the angular period, are empty, that is to say without pole parts.
  • the second variant and the third variant are very advantageous because, with only 25% of additional pole parts compared to the first variant, it is possible to approximately double the intensity of the resistive magnetic torque without other magnetic means than two sets of pole parts each distributed on the along a circle and respectively associated with the rotating bezel and the caseband.
  • a certain resistant magnetic torque given for a watch with a rotating bezel with essentially two intensity values provided for this given resistant torque as a function of the stable angular position, it is possible to reduce the dimensions of the parts polar relative to the first variant, and therefore the size of the magnetic device.
  • variants similar to the second and third variants exist for other odd values of the number K.
  • Variants with essentially two intensity values for the resistive magnetic torque exist with more than two series of M pole parts on each of the two parts (the bezel and the middle part) with the same distribution among the N angular positions, and with series complementary pole parts on only one of these two parts.
  • Eighteen pole parts of one of the two parts opposite eighteen pole parts of the other part are thus obtained for six stable angular positions separated by an angular period of 60°, and twelve pole parts of one of the two parts which are located opposite twelve pole parts of the other part in the other stable angular positions.
  • a ratio of approximately 2/3 is thus obtained between the two values of the resistive magnetic torque.
  • FIG. 5 A fourth variant, less advantageous in terms of efficiency of the magnetic device, is shown in Figure 5 .
  • the series of angular positions S1 to S4 (those comprising less than M pole parts in the first variant) each comprise M/2 pole parts in this fourth variant (as in the example shown of the first variant), these six parts poles being distributed by pair of pole parts having between them, in the series concerned, an angular offset equal to an odd number, less than M/2, multiplied by the angular period.
  • the number of pairs of pole parts in each of the series S1 to S4 can be provided less than three, namely equal to two or one. In the latter case, there is an increase in the ratio of resistive magnetic torques between the periodic angular positions of the rotating bezel exhibiting a certain resistive magnetic torque and those exhibiting a lower resistive magnetic torque, which is then lower in the case where the number of pairs of pole parts is equal to three and where said ratio is equal to two.
  • first set of first pole parts and the second set of second pole parts are each formed of permanent magnets generating a magnetic repulsion between this first set and this second set; and in that the N stable angular positions of the rotating bezel 6A are each defined by a positioning of the N first angular positions, in which the magnets 22A integral with this rotating bezel are placed, with an angular offset equal to substantially half of said pitch angular (a/2) relative to the N second angular positions of the middle part 8A in which the magnets 24A fixed to this middle part are placed.
  • the watch 32 comprises a case 34 which is formed of a middle part 8A and a rotating bezel 6A.
  • the references already described in connection with the Figure 1 relate to similar items.
  • the construction of the case differs from that of the Figure 1 essentially by the fact that the rotating bezel is mounted on a ball bearing 36 and by the fact that the magnetic device 20C comprises a first set of magnets 22A and a second set of magnets 24A which are each arranged circularly in the same plane general of the case 34, this general plane being perpendicular to the axis of rotation of the rotating bezel.
  • such an arrangement makes it possible to eliminate the axial magnetic forces.
  • a periodic arrangement of the magnets in each of the first and second sets of magnets makes it possible to make the radial magnetic force zero or very weak. global for any angular position of the rotating bezel, so that the ball bearing is not or only slightly disturbed in its operation by friction forces.
  • the magnetic devices of the variants shown in Figures 7 to 10 present the aforementioned periodic arrangement of the magnets, so that in these variants, only the tangential magnetic forces between the two sets of magnets are effective and generate the desired resistive magnetic torque, which corresponds to a magnetic return torque.
  • the stable angular positions of the rotating bezel correspond to positions of lower magnetic potential energy in the magnetic device 20C. These stable angular positions therefore correspond to angular positions where the first and second sets of magnets are substantially offset by half an angular pitch relative to each other.
  • the rotating bezel 6A comprises two subsets of twelve magnets 22A placed in two adjacent series S0 and S4 of twelve angular positions having between them the angular period ⁇ . These two subsets of magnets 22A define twelve stable angular positions in which the rotating bezel undergoes a relatively strong resistant magnetic torque during a drive in one direction of rotation or the other, these twelve stable angular positions occurring when the twelve magnets 24A linked to the rotating bezel are respectively located between the twelve pairs of adjacent magnets 22A formed by the two sub-assemblies placed in the series S0 and S4.
  • the magnetic device 20C generates a high magnetic potential barrier on one side and on the other of the twelve stable angular positions of the rotating bezel which present a strong magnetic torque. resistant, namely a strong magnetic return torque which is generated by the tangential magnetic forces in the magnetic device 20C.
  • Three other subsets of magnets 22A, each formed of six magnets, are distributed respectively in three other series S1, S2 and S3 of angular positions, each in a regular manner with an angular distance equal to twice the angular period.
  • the resistive magnetic torque (equal to the magnetic restoring torque in the realization of the Figure 6 ) is substantially halved when the rotating bezel is driven between two stable angular positions of lesser magnetic torque resistance relative to a drive from a stable angular position of lesser magnetic torque resistance to a stable angular position with a high magnetic resistance torque or vice versa .
  • the resistive magnetic torque felt when one arrives with the rotating bezel at a stable angular position exhibiting a strong resistive magnetic torque, is not the same as that felt when leaving such a stable angular position. Indeed, in this first embodiment, when approaching a stable angular position with a strong restoring torque, the resistive magnetic torque passes through a maximum before decreasing and finally becoming a driving torque insofar as the friction forces are not too great. On the other hand, when the rotating bezel is driven in rotation from a stable angular position with a high resistive magnetic torque, the user then feels this strong resistive magnetic torque which opposes the rotational movement of the rotating bezel.
  • the second embodiment provides an effective solution to the aforementioned problem which occurs in the first embodiment, thanks to the fact that a relatively high magnetic potential barrier is located before and after each of the twelve stable angular positions having a high restoring torque. magnetic.
  • a relatively high magnetic potential barrier is located before and after each of the twelve stable angular positions having a high restoring torque. magnetic.
  • first and second subsets of each M corresponding magnets are respectively placed in two series of M angular positions, these two series being offset from one another by an angular pitch (a) and each having the angular period between their angular positions.
  • the remaining corresponding [K-2] Y magnets are distributed among the K-2 other series of M angular positions, presenting between them the angular period, so that each comprises Y magnets, these K-2 other series and the said two series being offset from each other by the angular pitch (a).
  • the number M is an even number and the number Y is equal to M/2, the Y pole parts placed in each of the K-2 other series being distributed regularly by presenting between them distances angular equal to twice the angular period (2 ⁇ ).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
EP20217190.6A 2020-12-24 2020-12-24 Uhr, die einen drehbaren aussenring umfasst Active EP4020100B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20217190.6A EP4020100B1 (de) 2020-12-24 2020-12-24 Uhr, die einen drehbaren aussenring umfasst
US17/519,108 US20220206438A1 (en) 2020-12-24 2021-11-04 Timepiece comprising a rotating bezel
JP2021198348A JP7386837B2 (ja) 2020-12-24 2021-12-07 回転ベゼルを備える時計
CN202111599802.5A CN114675520A (zh) 2020-12-24 2021-12-24 包括旋转表圈的时计

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20217190.6A EP4020100B1 (de) 2020-12-24 2020-12-24 Uhr, die einen drehbaren aussenring umfasst

Publications (2)

Publication Number Publication Date
EP4020100A1 true EP4020100A1 (de) 2022-06-29
EP4020100B1 EP4020100B1 (de) 2023-08-16

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ID=73943151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20217190.6A Active EP4020100B1 (de) 2020-12-24 2020-12-24 Uhr, die einen drehbaren aussenring umfasst

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US (1) US20220206438A1 (de)
EP (1) EP4020100B1 (de)
JP (1) JP7386837B2 (de)
CN (1) CN114675520A (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2998799A1 (de) 2014-09-18 2016-03-23 Montres Breguet SA Kontaktlose Rastung
KR20160105016A (ko) * 2015-02-27 2016-09-06 삼성전자주식회사 웨어러블 전자장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025188Y1 (de) * 1970-12-28 1975-07-29
CH700059A2 (fr) * 2008-12-15 2010-06-15 Montres Breguet Sa Spiral à élévation de courbe en matériau à base de silicium.
US8902716B2 (en) * 2011-06-17 2014-12-02 Casio Computer Co., Ltd. Sensitivity adjustment device, radio wave communication device and watch
CN207867232U (zh) * 2018-03-16 2018-09-14 东莞市亿丰钟表有限公司 一种手表外壳可磁浮双向转圈的手表结构
EP3620867B1 (de) * 2018-09-04 2022-01-05 The Swatch Group Research and Development Ltd Uhr, die einen mechanischen oszillator umfasst, dessen durchschnittliche frequenz mit der eines elektronischen referenzoszillators synchronisiert ist

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2998799A1 (de) 2014-09-18 2016-03-23 Montres Breguet SA Kontaktlose Rastung
KR20160105016A (ko) * 2015-02-27 2016-09-06 삼성전자주식회사 웨어러블 전자장치

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JP7386837B2 (ja) 2023-11-27
US20220206438A1 (en) 2022-06-30
JP2022101489A (ja) 2022-07-06
CN114675520A (zh) 2022-06-28
EP4020100B1 (de) 2023-08-16

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