EP3403143A1 - Mouvement horloger a mecanisme d'affichage sautant - Google Patents
Mouvement horloger a mecanisme d'affichage sautantInfo
- Publication number
- EP3403143A1 EP3403143A1 EP17700411.6A EP17700411A EP3403143A1 EP 3403143 A1 EP3403143 A1 EP 3403143A1 EP 17700411 A EP17700411 A EP 17700411A EP 3403143 A1 EP3403143 A1 EP 3403143A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display
- watch movement
- period
- mobile
- locking
- 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
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
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
-
- 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
-
- 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
- G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the 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
- 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
- G04B19/25393—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released by their own energy source which is released at regular time intervals
Definitions
- the present invention relates to a watch movement comprising
- a jumping display mechanism including
- an actuating lever arranged to act on the display unit, following the first period, and to advance it by leaps of at least one step
- a first control member driven by a first mobile watch movement, according to the first period, to drive the actuating lever to an armed position and load the elastic member, the first control member being also arranged to disengage the actuating lever, after positioning it in its armed position, and allow it to act on the display mobile under the effect of the action of the elastic member.
- Jumping display mechanisms corresponding to the above characteristics are already known from the state of the art, more particularly but not limited to making displays of the date.
- the first control member must be arranged to deliver sufficient energy (mostly under the form of a couple) to allow the loading of the elastic member, while disturbing as little as possible the work train of the watch movement and, secondly, it is desirable that the mechanism is arranged such that a Satisfactory accuracy is achieved with respect to the time at which the display member jumps. It is also generally desirable that the jump of the display member is done as quickly as possible, that is to say almost instantaneously.
- the display mobile In the case of date display mechanisms, the display mobile is typically driven by the wheel of twenty-four hours, which introduces an uncertainty of a few minutes on the moment at which the jump actually takes place.
- Patent application EP 1586961 A2 provides an example of a date display jumping mechanism that meets the characteristics described above. More specifically, this mechanism comprises a cam rotated by a twenty-four hour wheel for loading a main elastic member, via a load rocker whose probe is in abutment against the periphery of the cam.
- the cam has substantially the shape of a deformed core, its edge being located about 2/3 of a turn from its hollow in its direction of rotation in operation. Ai nsi, the load of the main elastic member is carried out about sixteen hours to limit the disturbances generated in the gear train.
- the connection between the cam and the wheel of twenty-four hours is provided by a finger carried by the wheel and engaged in a slot in a circular portion in the cam.
- the present invention relates to a mechanism of the type mentioned above, further comprising a latch arranged to temporarily lock the actuating lever, when the first control member positions it in its armed position, before releasing it so that it can operate the mobile display at a time more precisely defined and almost instantaneously.
- the patent application EP 1801671 A1 shows another example of construction of a date display mechanism for performing a rapid jump of the display member of the date, by the implementation of a lock. .
- this mechanism comprises a twenty-four hour wheel carrying a spiral cam against which an actuating rocker is held in abutment under the effect of the action of an elastic member.
- the rotation of the cam until its highest point of radius is located opposite the actuating lever allows to position the latter in an armed position and load its elastic member at the same time.
- the cam continues to rotate to position its lowest radius point next to the actuating lever, the latter remains locked in the armed position by a pivoting latching ratchet.
- the locking pawl is neutralized shortly after by action of an elastic finger carried by the wheel of twenty-four hours.
- the triggering of the jumping of the display member is again controlled here by the displacement of the wheel of twenty-four hours, which only partially resolves the problem related to the uncertainty of at the moment of the actual jump.
- a main object of the present invention is to provide a jumping display mechanism of the type mentioned above, of alternative construction to those just described but of limited complexity, offering reduced uncertainty as to when the mobile display will actually present a jump in reference to mechanisms already known.
- the present invention relates more particularly to a watch movement corresponding to the characteristics mentioned above, characterized
- the display mechanism comprises a second control member arranged to neutralize the lock, when the actuating lever is in its armed position, and release the actuating lever, and
- the second control member is driven by a second mobile watch movement to neutralize the lock in a second period less than the first period.
- the moment at which the jump actually takes place can be defined with greater precision than in the case of the previous constructions, insofar as the control member in charge of triggering the jump presents a faster movement than the controller responsible for positioning the actuating lever in its armed position.
- the second control member is driven with a period of one hour, for example, which reduces the uncertainty on the moment of the triggering from a few minutes to a few seconds.
- the lock comprises a locking member having a locking surface for cooperating with an abutment surface of the actuating lever to lock the latter when it is positioned in its armed position, and
- the display mechanism comprises an additional elastic member arranged to act on the locking member and tend to position it in a locking position, the second control member being arranged to move the locking member, according to the second period , so that it leaves its locking position.
- the locking member is movable in a translational movement to take or leave its locking position.
- the locking member is movable in a rotational movement to take or leave its locking position.
- the locking member may in particular comprise a latch latch.
- the latching lever has an arm that can be actuated by the second control member so that the locking surface releases the actuating lever
- the second control member comprises a rotatable mobile having an actuating finger arranged to cooperate with the arm once every complete turn of the rotating mobile
- the arm carries a leaf spring arranged in such a manner that the angle of rotation between the leaf spring in a first direction of rotation of the rotary wheel
- the actuating finger acts on the leaf spring to make it undergo a temporary elastic deformation without dragging the arm when the rotating wheel rotates in the direction of rotation opposite to the first direction of rotation.
- the second control member must deliver a limited torque to neutralize the lock, which is preferable to avoid disruption of the gear train finishing the watch movement.
- the display mechanism is thus protected during time setting operations.
- the first control member comprises a cam whose periphery has substantially the shape of a spiral, the cam being integral in rotation with a wheel of twenty-four hours, and
- the cam has a periphery whose radius varies substantially continuously from a portion of minimum radius to a portion of maximum radius, the minimum radius and maximum radius portions being connected to each other by a portion of steep slope ensuring disengagement of the cam when the steep slope portion is positioned opposite the actuating lever.
- the maximum radius portion is located on an end portion of the periphery of the cam defined by a small recess.
- actuating lever comprises a retractable actuating nose intended to actuate the display mobile, and / or
- the first period has a value that is an integer multiple of the value of the second period, and / or
- the first period has a value substantially equal to twenty-four hours so that the display can drive the display member to indicate a date-related information.
- the second period has a value substantially equal to or less than one hour.
- the second mobile is rotated discontinuously, preferably jumping, according to the second period.
- the present invention also relates to a timepiece equipped with a watch movement that meets the characteristics that have just been stated.
- Figures 1 to 4 show a same simplified plan view of a part of a watch movement, according to a preferred embodiment of the invention, comprising a jumping display mechanism.
- Figures 1 to 4 illustrate respective configurations spaced in time to facilitate the description of the operation of this jumping mechanism.
- the watch movement according to the invention comprises a conventional frame, intended to support the movement components, which has not been shown for clarity.
- the watch movement will not be described in detail since many of the elements that compose it are not illustrated and have no direct impact on the implementation of the present invention.
- the watch movement comprises a jumping display mechanism 1 of information such as the date, by way of non-limiting example.
- the jumping display mechanism 1 may be implemented in a timepiece comprising a display of the date per disc (s), possibly in the form of a big date, or by acute he.
- the watch movement can be arranged to allow a display of the simple, annual, perpetual or even secular calendar without having a direct impact on the implementation of the invention.
- the display mechanism 1 comprises a mobile display 2 having the shape of a star with seven asymmetrical branches for non-limiting illustrative purposes.
- the display mobile 2 may further comprise a toothed wheel coaxial with the star (not shown) and intended to drive a date display member (not shown) or, alternatively, the mobile of Display 2 may be intended to directly carry a date display member.
- the display mechanism 1 according to the present invention is jumping, that is to say that the display mobile 2 is intended to be driven by jumps during which it rotates one step per jump.
- the display mobile 2 is intended to be driven by jumps during which it rotates one step per jump.
- other variants are possible without departing from the scope of the invention.
- a jumper (not visible) is provided to maintain the mobile display 2 in its service positions.
- the display mechanism 1 also comprises an actuating lever 4 capable of cooperating with the display mobile 2 to advance it by step.
- the actuating lever 4 is pivotally mounted on a frame member of the watch movement by one of its ends 6.
- the actuating lever 4 comprises a first arm carrying at its free end a retractable nose 8 for cooperating with the display mobile 2 to advance it by one-step jumps.
- the actuating lever 4 comprises a second arm 10 defining a probe 12 at its free end arranged to cooperate with the periphery of a cam 14 spiral.
- the actuating lever 4 comprises a third arm 16 having in particular a fast edge 18 at its free end, whose function will be explained later.
- the cam 14 defines, with a wheel of twenty-four hours 20 which it is secured, a first control member of the display mechanism jumping.
- the twenty-four hour wheel is driven at a first twenty-four hour period from a first driving wheel (not shown) of the clockwork movement, such as an hour wheel, via a referral having a number of teeth adapted to provide the required reduction.
- the periphery of the cam 14 has a first portion 22, short, of minimum radius, before having a continuously increasing radius until reaching a portion 24 of maximum radius, defined by a slight setback of the continuity of its curvature.
- the portions of minimum radius and maximum radius are connected to one another by a portion 26 of steep slope.
- the periphery of the cam 14, between the portion 22 of minimum radius and the portion 24 of maximum radius here extends over an angle slightly greater than 360 degrees, the portion 26 having a slope greater than 90 degrees in reference to the direction of portion 24.
- An elastic member 27 (shown schematically in Figure 1) is provided to exert a force on the actuating lever 4 so that its probe 12 is held in permanent support against the periphery of the cam 14.
- the organ elastic 27 can be made in the form of a separate component of the actuating lever 4 or, alternatively, it can be made in one piece with the actuating lever 4, to simplify the construction, production and assembly, without departing from the scope of the invention.
- the display mechanism 1 comprises a latch latch 28 rotatably mounted, axis 30, on a frame member of the watch movement. While the present preferred illustrative mode of the invention provides a latch 28 moving in rotation about an axis 30, the corresponding locking function can also be obtained by the implementation of a locking member moving in translation or following any other suitable movement which would not be a simple rotation, without departing from the scope of the invention.
- the latch 28 has a first arm defining a locking surface 32 at its free end, intended to cooperate with the sharp edge 18 of the actuating lever 4 which thus defines an abutment surface, as will be explained below.
- the locking frame 28 has a second actuating arm 34 intended to cooperate with a second control member 36 of the display mechanism 1.
- An elastic member (not visible) is arranged to exert a force on the latch 28 tending to maintain it in abutment against the actuating lever 4, that is to say to turn it in the direction clockwise rotation.
- the second control member 36 comprises a toothed wheel (not shown) carrying an actuating finger 38 arranged to actuate the second arm 34 of the latch 28 at each complete revolution of the second control member 36 on it. even.
- the second control member 36 is driven by a second driving mobile of the watch movement, to present a second period which is shorter than the first twenty-four hour period of the first control member. ordered.
- the value of the first period may be an integer multiple of that of the second period.
- the second control member 36 is driven, continuously or discontinuously, or jumping, to present a period of the order of one hour or less.
- the second control member 36 be driven from the roadway or the hour wheel (with a multiplicative ratio equal to one in this case) to make a turn on itself in one. hour.
- the second arm 34 carries a leaf spring 40 through which it is actuated by the second control member 36. More precisely, it can be seen from the view of FIG. 1 that when the actuating finger 38 is rotated in the direction of clockwise rotation, it pushes the leaf spring 40 once per turn so that the latter causes rotation of the latch 28. against, the actuating finger 38 is driven in the anti-clockwise direction, it exerts a pressing force on the leaf spring 40 such that the latter is temporarily deformed, elastically, to let the actuating finger 38, without causing a rotation of the latch 28.
- FIG. 2 illustrates the configuration of the display mechanism 1 when the cam 14 has continued to rotate until positioning the portion 24 of maximum radius facing the probe 12 of the actuating lever 4.
- the actuating lever 4 is then placed in the armed position, its edge 18 being engaged in the locking surface 32 of the latch 28 (by rotation of the latch 28 under the effect of the action of its elastic organ).
- the actuating lever 4 is temporarily held in this armed position, while the second control member 36 continues to rotate in the clockwise direction, until the actuating finger 38 comes into contact with the actuator. second arm 34 of the latch 28, as illustrated in FIG.
- cam 14 continues its course and that the probe 12 is no longer placed in abutment against its periphery due to the action of the latch 28. cam 14 is thus disengaged from the actuating lever 4 which remains nevertheless suspended in the armed position under the effect of its cooperation with the latch 28.
- the actuating finger 38 exerts pressure on the second arm 34 of the latch 28 causing a rotation of the latter in the direction of rotation anti-clockwise.
- the switching base 4 In its fall, the switching base 4 almost immediately activates the display unit 2 by means of its retractable nose 8, in the direction of rotation hora ire, which causes the progress of a step of the corresponding display member.
- the cycle that has just been described then starts again to advance the display member by one step every twenty-four hours.
- the first body of control allows slow loading of the elastic member of the actuating lever, being driven with a large torque but with a force spread over time leading to a minimum level of disturbance for the gear train.
- the implementation of a second reduced period control member to ensure the release of the actuating lever makes it possible to precisely define the instant of the effective jump and thus contributes greatly to the overall quality of the operation. display mechanism.
- the torque necessary for the neutralization of the latch that is to say the actuation of the latch 28 by the actuating finger 38, is very small to limit again the risk of disturbances that could to undergo the finishing gear.
- the jumping display mechanism according to the present invention may also be implemented in connection with the display of other types of information such as for example the display of a jumping hour or a jumping minute, whether it is current or on-demand hourly information, for example as part of a chronograph-type function.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00051/16A CH712012A1 (fr) | 2016-01-14 | 2016-01-14 | Mouvement horloger à mécanisme d'affichage sautant. |
| PCT/EP2017/050639 WO2017121839A1 (fr) | 2016-01-14 | 2017-01-13 | Mouvement horloger a mecanisme d'affichage sautant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3403143A1 true EP3403143A1 (fr) | 2018-11-21 |
| EP3403143B1 EP3403143B1 (fr) | 2020-03-18 |
Family
ID=55345609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17700411.6A Active EP3403143B1 (fr) | 2016-01-14 | 2017-01-13 | Mouvement horloger à mécanisme d'affichage sautant |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3403143B1 (fr) |
| CN (1) | CN108475040B (fr) |
| CH (1) | CH712012A1 (fr) |
| WO (1) | WO2017121839A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH715980B1 (fr) * | 2019-03-19 | 2022-04-14 | Richemont Int Sa | Mécanisme sautant pour mouvement horloger. |
| EP3828644B1 (fr) * | 2019-11-27 | 2023-12-27 | ETA SA Manufacture Horlogère Suisse | Mobile d'horlogerie pour mécanisme à saut semi-instantané |
| US12487563B2 (en) * | 2020-07-30 | 2025-12-02 | Montres Breguet S.A. | Sympathetic timepiece assembly |
| CN116438488B (zh) * | 2020-07-30 | 2025-02-14 | 蒙特雷布勒盖股份有限公司 | 交感钟表组件 |
| EP4020099A1 (fr) * | 2020-12-24 | 2022-06-29 | Blancpain SA | Mécanisme d'affichage horloger rétrograde de type traînant équipé d'une bascule de débrayage de l'affichage |
| EP4160322B1 (fr) * | 2021-09-29 | 2025-06-25 | ETA SA Manufacture Horlogère Suisse | Ressort frein pour arbre porteur d'un afficheur, mouvement horloger comprenant ledit ressort frein et procede d'installation dudit ressort frein |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH413171A4 (fr) * | 1971-03-19 | 1973-11-30 | ||
| CH698418B1 (fr) * | 2004-04-13 | 2009-08-14 | Pierre Kunz S A | Quantième perpétuel instantané. |
| EP1801671B1 (fr) * | 2005-12-22 | 2009-05-13 | Montres Breguet S.A. | Montre à calendrier pourvu de moyens de blocage |
| EP1857890B1 (fr) * | 2006-03-30 | 2012-05-30 | Richemont International S.A. | Dispositif de déclenchement d'une impulsion |
| CH699785B1 (fr) * | 2008-10-23 | 2014-02-28 | Patek Philippe Sa Geneve | Pièce d'horlogerie à fuseaux horaires et à quantième. |
| EP2565729B1 (fr) * | 2011-08-30 | 2018-01-31 | Breitling AG | Mécanisme de calandrier |
| EP2595006B1 (fr) * | 2011-11-17 | 2017-11-01 | Blancpain S.A. | Dispositif mécanique indicateur de changement d'état pour un mécanisme d'affichage semi-instantané ou instantané par sauts |
| EP2615503B1 (fr) * | 2012-01-13 | 2014-09-24 | Agenhor SA | Mécanisme de commande d'un barillet pour mouvement horloger |
-
2016
- 2016-01-14 CH CH00051/16A patent/CH712012A1/fr not_active Application Discontinuation
-
2017
- 2017-01-13 CN CN201780006194.8A patent/CN108475040B/zh not_active Expired - Fee Related
- 2017-01-13 WO PCT/EP2017/050639 patent/WO2017121839A1/fr not_active Ceased
- 2017-01-13 EP EP17700411.6A patent/EP3403143B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108475040A (zh) | 2018-08-31 |
| CN108475040B (zh) | 2020-06-05 |
| WO2017121839A1 (fr) | 2017-07-20 |
| EP3403143B1 (fr) | 2020-03-18 |
| CH712012A1 (fr) | 2017-07-14 |
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