EP3246763B1 - Quick correction mechanism for clock piece - Google Patents

Description

Field of the invention

The invention relates to a rapid correction mechanism for a timepiece comprising a control member controlling a gear train for adjusting and correcting at least one display.

The invention also relates to a timepiece comprising at least one control member controlling a gear train for adjusting and correcting at least one display.

The invention relates to the field of watchmaking, and more particularly to timepieces comprising several displays.

Background of the invention

This invention relates to watches which require a fast correction mechanism (day, month, or other) of certain functions, in particular display functions such as a calendar (annual, perpetual, day / date, or other), or moon phase, tide, AM / PM, or other indicators. A particular example of an annual calendar mechanism is described by the patent EP1666991 B1 in the name of ETA SA.

To make a correction of the month, the user must generally make a correction by the date. In the most unfavorable cases, such manipulation can be long and tedious. It may be necessary to make a one-year correction. Similarly if the user is mistaken during the correction, the manipulation must be repeated. The execution of the correction mechanism by the date could lead to excessive use and possibly create malfunctions.

The correction mechanisms often include flip-flops, which are essential components in clockwork mechanisms, making it possible to switch a mechanism between several different modes, generally between two distinct positions. A clock rocker is often accompanied by a return spring to ensure a proper movement transmission, or a support maintained, as appropriate.

The documents EP 2 945 026 A1 and JP H08-285958 present correction devices.

Summary of the invention

The present invention proposes to solve the aforementioned drawbacks of the prior art, and aims at enabling the user to quickly correct a mechanism, in particular a display mechanism, and more particularly a mechanism for date, so that the updating of a timepiece, including a watch, requires considerably less manual corrections.

• le dispositif comprend une bascule ne nécessitant pas de ressort de rappel pour assurer la transmission de mouvement, et autonome dans son fonctionnement ;
• une bascule d'horlogerie pour la transmission d'un mouvement entre, d'une part un mobile émetteur que porte une plaque pivotante que comporte ladite bascule et qui est monté pivotant autour d'un premier axe de pivotement, et d'autre part au moins un mobile récepteur externe à ladite bascule laquelle comporte, monté pivotant autour d'un deuxième axe de pivotement distant dudit premier axe de pivotement, au moins un mobile de transmission porté par ladite plaque pivotante.
• Le dispositif comprend une bascule agencée pour pivoter de la première position, dite position de correction lente, vers la deuxième position, dite position correction rapide ;
• la bascule porte le renvoi correcteur et le premier mobile correcteur ;
• la bascule est agencée pour pivoter autour de l'axe de rotation du renvoi correcteur ;
• la bascule comporte une première liaison à friction entre une surface de friction du renvoi correcteur et une surface de friction de la bascule ;
• la bascule comprend une deuxième liaison à friction entre une surface de friction du premier mobile correcteur et une surface de friction de la bascule ;
• le mobile récepteur externe à ladite bascule, également appelé deuxième mobile correcteur, comprend un nombre de dents inférieur à celui du premier mobile de correction ;
• le dispositif comprend des moyens de rappel élastique qui tendent à ramener la bascule dans la position de correction lente ;
• l'organe d'affichage est un affichage de phase de lune ou un affichage de quantième ou un affichage de jour ou un affichage de mois ou un affichage de marée ou un affichage de fuseau ;

The invention relates to a device according to claim 1. In accordance with other advantageous variants of the invention:

• the device comprises a rocker that does not require a return spring to ensure the transmission of movement, and autonomous in its operation;
• a clock rocker for transmitting a movement between, on the one hand, a mobile transmitter carrying a pivoting plate that comprises said rocker and which is pivotally mounted about a first pivot axis, and on the other hand to at least one mobile receiver external to said rocker which comprises, pivotally mounted about a second pivot axis remote from said first pivot axis, at least one transmission mobile carried by said pivot plate.
• The device comprises a rocker arranged to pivot from the first position, said slow correction position, to the second position, said fast correction position;
• the flip-flop carries the corrector and the first correction mobile;
• the rocker is arranged to pivot about the axis of rotation of the corrector;
• the rocker comprises a first friction link between a friction surface of the corrector and a friction surface of the rocker;
• the rocker comprises a second frictional connection between a friction surface of the first corrective mobile and a friction surface of the rocker;
• the mobile receiver external to said rocker, also called second mobile corrector, comprises a lower number of teeth than the first mobile correction;
• the device comprises elastic return means which tend to return the rocker in the slow correction position;
• the display member is a moon phase display or a date display or a day display or a month display or a tide display or a time zone display;

The invention also relates to a timepiece comprising a device for correcting an indication provided by a display mechanism according to the invention.

Thanks to the invention, the slow or fast correction is done directly by a user during a rotation of the crown without having to change the position of the crown.

Brief description of the drawings

• la figure 1 représente, de façon schématisée un dispositif de correction selon l'invention ;
• la figure 2 représente de façon schématisée un dispositif de correction non compris dans l'invention ;
• la figure 3 représente de façon schématisée un dispositif de correction selon l'invention en position de correction rapide.

Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:

• the figure 1 schematically represents a correction device according to the invention;
• the figure 2 schematically represents a correction device not included in the invention;
• the figure 3 schematically represents a correction device according to the invention in rapid correction position.

Detailed Description of the Preferred Embodiments

The invention relates to the field of watch mechanisms, and more particularly mechanisms for controlling and transmitting motion. It finds a preferential application for the correction and updating of display mechanisms.

The invention more particularly relates to a correction device 1 of a display member 2 and conventionally comprises a winding rod 4 mounted rotatably mounted in a plate. A sliding pinion 10 is rotatably mounted on the winding stem 4, movable between at least a first correction position and a winding position for example, the winding rod 4 can take a second correction position.

In the corrected position, the sliding pinion 10 meshes with an intermediate gear 11 which meshes with a corrector 12 mounted free to rotate, and which is itself engaged with a first corrective mobile 13 mounted to rotate freely.

According to an embodiment not included in the invention and represented at figure 2 , in the correction position, the first correction mobile 13 may also be engaged with a second corrective mobile 14, itself engaged with a ring 20 provided with an internal toothing 21, the ring 20 being integral with the body display 2 and rotatably guided by its outer or inner circumference on the plate.

The device comprises a rocker 3 for the transmission of a movement between the return corrector 12 carried by a board 30 that includes the rocker 3, and the second corrective mobile 14. The corrector 12 is pivotally mounted about a first pivot axis A1 on a shaft 120, which is fixed on a plate in the mode illustrated embodiment.

This rocker 3 also comprises, pivoted about a second pivot axis A2 on another shaft 121 remote from the first pivot axis A1 and integral with the rocker 3, the first correction mobile 13 carried by the board 30 of the rocker 3.

The rocker 3 is pivotally mounted between a first and a second correction position, respectively A 'said slow correction position and B' said rapid correction position, about the pivot axis A1 perpendicular to the plate which merges with the pivoting axis of the corrector 12.

The second correction mobile 14 comprises a number of teeth smaller than that of the first correction mobile 13 so as to increase the speed of the second correction mobile 14.

The rocker 3 comprises a first friction link between a friction surface of the corrector 12 and a friction surface of the plate 30, or a second frictional connection between a friction surface of the first corrector 13 and a friction surface of board 30, so as to rotate the rocker itself from one position to another.

The device may comprise elastic return means which tend to bring the rocker 3 into the slow correction position.

In the first correction position A ', called the slow correction position, the first correction mobile unit 13 meshes directly with the internal toothing 21 of the ring 20 of the display member 2. In the second correction position B', said position of quick fix, the first mobile corrector 13 meshes with the second correction mobile 14, itself engaged with the internal toothing 21 of the ring 20 of the display member 2.

According to one embodiment of the invention, illustrated in figure 3 two accelerator referrals 15 are mounted between the first correction mobile 13 and the second correction mobile 14.

The operation of the correction device is as follows. When the winding stem 4 is actuated in a first direction, the clockwise direction for example, in its correction position, the sliding pinion 10 meshes with the intermediate gear 11 which is engaged with the corrector 12 which is driven in the counterclockwise direction. , and it drives itself, the first corrective mobile 13 in the clockwise direction. The latter meshes with the internal toothing 21 of the ring 20 of the display member 2, which rotates clockwise, which makes it possible to correct the information displayed by the display member according to a slow correction speed. .

When the winding stem 4 is actuated in a second direction, the counterclockwise direction in this example, in its correction position, the first corrective wheel 13 or the corrector 12 rotates the board 30 around the first axis A1 under the effect friction, until the first correction mobile 13 cooperates with the second correction mobile 14 which meshes with the internal toothing 21 of the ring 20 of the display member 2, which also rotates clockwise, this which makes it possible to correct the information displayed by the display member according to a fast correction speed.

According to the embodiment of the invention shown in figure 3 , the first corrective mobile 13 meshes with a pair of accelerator references 15 which cause the second correction mobile 14, which also makes it possible to correct the information displayed by the display member according to a fast correction speed.

Of course, the corrector device according to the invention is not limited to the embodiment which has just been described and various Simple modifications and variations can be envisaged by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Thanks to these different aspects of the invention, there is a corrector device for a slow or fast correction of an indication through a single manipulation of the crown rod.

NOMENCLATURE

• 1. Correction device,
  • 10. Sprocket,
  • 11. Intermediate referral,
  • 12. Corrective reference,
  • 13. First mobile corrector,
  • 14. Second mobile corrector,
  • 15. Pair of accelerator referrals,
• 2. Display organ,
  • 20. Ring,
  • 21. Inner tooth,
• 3. Toggle,
  30. Board,
• 4. Winding stem,
• 120. Corrective reference tree,
• 121. Tree of the first correction mobile,
• A1. First pivot axis,
• A2. Second pivot axis.

Claims (10)

1. Device for correcting an indication given by a display mechanism for a timepiece provided with at least one display member, comprising:

   - a winding stem (4) capable of being connected to a kinematic chain arranged for winding and arranged such that it occupies at least one indication correction position,

   - a pinion (10) mounted onto the winding stem (4) for rotation therewith,

   - an intermediate corrector wheel (12) kinematically connected to the pinion (10) when the winding stem (4) is occupying the correction position, and pivoting about a pivot axis (A1),

   characterised in that the device comprises a first corrector wheel set (13) arranged such that it pivots from a first so-called slow correction position, wherein the first corrector wheel set (13) is actuated by the intermediate corrector wheel (12) and meshes with the display member (21), so as to carry out a slow correction of the indication when the winding stem is actuated in a first direction of rotation into the correction position thereof,
   to a second so-called fast correction position, wherein the first corrector wheel set (13) is actuated by the intermediate corrector wheel (12) and engages with a second corrector wheel set (14) engaging with the display member (21), so as to carry out a fast correction of the indication when the winding stem (4) is actuated in a second direction of rotation into the correction position thereof, and in that the device comprises intermediate accelerator wheels (15) mounted between the first corrector wheel set (13) and the second corrector wheel set (14).
2. Correction device according to claim 1, comprising a lever (3) arranged such that it pivots from the first so-called slow correction position to the second so-called fast correction position.
3. Correction device according to claim 2, wherein the lever bears the intermediate corrector wheel and the first corrector wheel set (13).
4. Correction device according to claim 2 or 3, wherein the lever is arranged such that it pivots about the rotational axis of the intermediate corrector wheel.
5. Correction device according to one of claims 2 to 4, wherein the lever (3) includes a first friction link between a friction surface of the intermediate corrector wheel (12) and a friction surface of the lever (3).
6. Correction device according to one of claims 2 to 4, wherein the lever (3) comprises a second friction link between a friction surface of the first corrector wheel set (13) and a friction surface of the lever.
7. Correction device according to one of claims 1 to 6, wherein the second corrector wheel set (14) comprises fewer teeth than the first corrector wheel set (13).
8. Correction device according to one of claims 1 to 7, comprising elastic return means which tend to bring the lever (3) back into the slow correction position.
9. Correction device according to one of claims 1 to 8, wherein the display member is a moon phase display or a date display or a day display or a month display or a tide display or a time zone display.
10. Timepiece comprising a device for correcting an indication given by a display mechanism according to one of the preceding claims.

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