EP2565726B1 - Steuerungsvorrichtung für uhren - Google Patents

Steuerungsvorrichtung für uhren Download PDF

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Publication number
EP2565726B1
EP2565726B1 EP12182738.0A EP12182738A EP2565726B1 EP 2565726 B1 EP2565726 B1 EP 2565726B1 EP 12182738 A EP12182738 A EP 12182738A EP 2565726 B1 EP2565726 B1 EP 2565726B1
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EP
European Patent Office
Prior art keywords
spring
pin
groove
command
free end
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.)
Active
Application number
EP12182738.0A
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English (en)
French (fr)
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EP2565726A2 (de
EP2565726A3 (de
Inventor
Alexandre Buffet
Olivier Cassanelli-Molle
Samuel Tanner
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Richemont International SA
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Richemont International SA
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Publication date
Application filed by Richemont International SA filed Critical Richemont International SA
Publication of EP2565726A2 publication Critical patent/EP2565726A2/de
Publication of EP2565726A3 publication Critical patent/EP2565726A3/de
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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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/048—Operation exclusively by axial movement of a push-button, e.g. for chronographs

Definitions

  • the present invention relates to a control device for a timepiece, comprising a control lever adapted to occupy a first rest position and, on actuation of a pushbutton or other control member, a second position of actuation, the device comprising a spring for defining a threshold value for the necessary actuating force on said push button so that the control lever moves from its first position to its second position.
  • This kind of device is in principle known, for example documents EP 0 240 778 or EP 0 498 212 , and is intended to provide a dynamic spring for use in combination with a pusher or other similar control device.
  • a dynamic spring makes it possible to define a certain threshold value for the force needed to overcome its lifting and thus to trigger the command. Once the dynamic spring is lifted, the available force pushes the control to the end of the function without additional effort. By thus ensuring a complete function of the control, such a dynamic spring makes it possible to provide a pusher or other control device with a high level of security with regard to its activation or even non-activation.
  • the purpose of the present invention is therefore to overcome the drawbacks of known devices and to achieve the aforementioned advantages, in particular to allow the realization of a control device, equipped with a dynamic spring, which is simple in its design and reliable when of its operation, without increasing the complexity, the volume occupied, or even the production costs of the device.
  • the present invention proposes a control device of the aforementioned type, in particular for a mechanical timepiece, which is distinguished by the characteristics set forth in claim 1, as well as a corresponding timepiece comprising such a device.
  • the control lever comprises a projecting element cooperating with said spring, said projecting element comprising on its circumference at least one first guide means adapted to cooperate with at least one second guide means mounted on a fixed structure of the timepiece.
  • the projecting element is formed by a pin
  • the first guide means is formed by a groove arranged on the circumference of this pin of the control lever
  • the second means guide is formed by a guide portion arranged on said spring which is mounted on the frame of the timepiece, at least said spring guide portion being housed in the groove.
  • the groove and / or the spring are specifically arranged, leading to other corresponding advantages.
  • the control device may for example be arranged to be ideally suited for use in combination with either a flip-flop or a monostable push-button.
  • the figure 1a shows a schematic perspective view of a control device according to the present invention, mounted on the frame of a timepiece;
  • the figure 1b is a top view of the device shown in FIG. figure 1a ;
  • the figure 1c shows a cut through the device along the AA line shown in the figure 1b ;
  • the figure 1d shows an enlargement of the area B around the pin indicated in the figure 1b , some parts being illustrated in transparency for a better understanding;
  • the figure 1e shows schematically and by way of example a top view of the shape of a dynamic spring used in the control device according to the present invention.
  • FIGS. 2a to 2c show schematically, from above views, the operation of a control device according to the present invention which is particularly suitable for use in combination with a flip-flop, in three steps during its operation, namely when the device is in its rest position, in its intermediate position, and in its actuating position.
  • FIGS. 3a to 3c schematically represent, by top views similar to Figures 2a to 2c , the operation of a control device according to the present invention which is particularly suitable for use in combination with a monostable pushbutton, this in its three stages during its operation.
  • the figure 4 shows schematically, by a cross-section similar to the figure 1c , an alternative embodiment having an inverted arrangement at level of the groove and the guide element, a collar being provided on the pin, while a groove is arranged on a bridge of the frame.
  • a control device is intended to be integrated in a timepiece, preferably in a mechanical watch, especially in a wristwatch.
  • the control device may for example be connected to a flip-flop or a monostable pusher of the timepiece, or to any other such control mechanism, regardless of the function controlled by the device and the type of the timepiece.
  • the control device comprises a control lever 1 adapted to occupy a first rest position and, on actuation of a push button or other non-illustrated control member, a second actuating position.
  • the control lever 1 is normally pivotally mounted about an axis 1.1 on the frame 4 of the watch, which is not illustrated in detail in the figures because not important for the present invention.
  • the device also comprises a dynamic spring 3 generally of the type mentioned in the introduction which makes it possible to define a threshold value for the necessary actuating force on said pushbutton so that the control lever 1 moves from its first position to its first position. second position.
  • the term "push button” is used in this context in the sense that this piece makes it possible to transmit a force coming from the user of the watch to the control lever 1, independently of the fact that he is actually a single push button, so monostable, or a push-button integrated into a bistable flip-flop.
  • the control lever 1 can also be controlled by other types of control members of a timepiece, for example by a crown or a wheel.
  • the figure 1a also shows that the control lever 1 comprises a pin 2 or another element such as a pin, this pin 2 or this pin being normally mounted integrally on the lever 1.
  • the pin 2 could also be mounted so as to be free in rotation about its axis in the control lever 1, to reduce the friction forces with the other parts of the device with which it is in cooperation.
  • the pin 2 cooperates with said dynamic spring 3, said pin 2 comprising for this purpose on its lateral circumference at least one groove 2.1 in which at least a portion of the spring 3 is housed.
  • Figures 1b and 1c illustrating a top view of the device, respectively a section through the device along the line AA contained in the figure 1b .
  • the groove 2.1 arranged on the circumference of the pin 2 of the control lever 1 has a height substantially corresponding to the height of said spring 3.
  • the groove 2.1 defines an inside diameter D I of the pin 2, as indicated symbolically at the figure 1c . It is not necessary that the groove 2.1 be circular, it could occupy only part of the circumference of the pin, for example laterally on both sides of the pin 2, where the spring 3 must be housed when its cooperation with the pin 2. It is also conceivable that the groove 2.1 is formed only on one side of the pin 2, for example in front of a single portion of the spring 3, preferably and for reasons which will become clear later in the description that which is attached to the frame 4 of the watch.
  • the spring 3 comprises, according to this preferred embodiment, a first portion 3.1 substantially U-shaped.
  • This first U-shaped part 3.1 has a fixed end 3.1.1 which is adjacent to a second portion 3.2 of the spring, the latter being fixed to the timepiece, for example to the frame 4, so that the fixed end 3.1.1 can be seen as being integral with the frame 4.
  • the other end 3.1.2 of the first portion 3.1 U-shaped is free.
  • the distance between the tip of the free end 3.1.2 and the fixed end 3.1.1 is, in the rest position of the spring 3 or the control device respectively, lower than the inner diameter D I of the pin 2 at its groove 2.1, so that a predefined force is required to move the free end 3.1. 2 of the fixed end 3.1.1.
  • the threshold value of this force can be chosen, apart from varying the inside diameter D I of the pin 2, by varying the shape and / or the dimensions of the spring 3, for example by varying the distance between the tip of its end free 3.1.2 and its fixed end 3.1.1, the thickness of the leaf spring or its length, and its height.
  • the free end 3.1.2 of the spring 3 has a substantially L-shaped tip whose base 3.1.2.1 is oriented towards the outside of the U-shape of the spring 3 and forms a stop that presses, in the position of rest of the spring 3, at the groove 2.1 of the pin 2, that is to say on its inner circumference.
  • the angle between the base 3.1.2.1 and the arm of the free end 3.1.2 of the spring 3 is a functional part of the dynamic spring and is another parameter for influencing the threshold value of this spring.
  • the fixed end 3.1.1 of the spring 3 comprises at its tip a guide portion 3.1.1.1 having a substantially straight shape which supports, in the rest position of the spring 3, also at the the groove 2.1 of the pin 2.
  • said guide portion 3.1.1.1 is arranged concentrically with respect to the pivot axis 1.1 of the control lever 1, such as schematically indicated in figure 1b using the radius R and best visible at the enlargement of the figure 1d .
  • the cooperation between the guiding portion 3.1.1.1 of the fixed end 3.1.1 of the spring 3 and the groove 2.1 of the pin 2 optimally achieves, during the pivoting of this lever 1, a guiding of the pin 2 respectively of the lever 1.
  • the guide portion 3.1.1.1 of the fixed end 3.1.1 is preferably, but not necessarily, followed by a curved portion 3.1.1.2 which is adapted to receive said pin 2 in the position d actuation of the spring 3. If in the preferred embodiment of the device this curved portion 3.1.1.2 only serves to stabilize the fixed end 3.1.1 of the spring 3, in particular to reinforce said guide portion 3.1.1.1 , the curved part 3.1.1.2 could also serve as a stop for the control lever 1; in the preferred embodiment, this stop lever is made by other means not illustrated because not important for the present invention.
  • the free end 3.1.2 of spring 3 can be arranged differently.
  • the free end 3.1.2 of the spring 3 may have a length and / or a geometrical shape chosen so that the distance between the tip of the free end 3.1.2 and the fixed end 3.1.1, in the actuated position of the spring 3, is smaller than the internal diameter D I of the pin 2 at its groove 2.1 and that the axis of the pin 2 is, in this position, on the other side of the tip of the free end 3.1.2 relative to the rest position of the spring 3, so that the control device has two stable positions.
  • the free end 3.1.2 of the spring 3 should have a length and / or a geometric shape chosen so that the distance between the tip of the free end 3.1.2 and the fixed end 3.1.1, in the actuating position of the spring 3, is less than or substantially equal to the inside diameter D I of the pin 2 at its groove 2.1 of so that the pin 2 is preloaded to return to its rest position, so that the control device has a single stable position.
  • these characteristics can be realized, instead of varying the length of the free end 3.1.2, giving a corresponding geometric shape to the free end 3.1.2.
  • a first non-illustrated alternative to this configuration may for example consist in that the guiding portion 3.1.1.1 which acts as a guide element on the side of the fixed frame is replaced by another element which is, is mounted on the frame, or is made of a part with the latter, as a protruding portion of corresponding shape of a bridge mounted on the frame.
  • FIG. figure 4 it is also possible to reverse the arrangement at the groove and the guide element, that is to say to provide a guide element such as a flange 2.2 on the pin 2, while a groove 4.1, or even only a support at the top or bottom for this kind of flange, is arranged on the side of the bridge respectively of the frame 4, whether of one, the other, or both sides of the pin 2.
  • the flange 2.2, or in the configuration opposite the groove 2.1, on the pin 2 may be at a different height than the spring 3, provided that it is arranged at the same height as the corresponding groove 4.1 , respectively the corresponding guide element 3.1.1.1, on the bridge or the frame 4, so as to separate the two dynamic spring functions and guide the lever by different structural elements.
  • the groove 2.1 and the guide portion 3.1.1.1 mentioned in the context of the preferred embodiment described above first are therefore generally to be considered as first and second guide means which can be arranged according to the needs side pin 2, that is to say on the lever side 1, or spring side 3, that is to say on the frame side 4, to allow cooperation carrying out the guidance of the control lever 1.
  • the dynamic spring and lever guide functions are advantageously achieved by combining the structural means for these functions.
  • Figures 2a to 2c schematically illustrating, by views from above, three steps during its operation, namely when the device is in its rest position, in an intermediate position, and in its actuated position, this for use of the control device in combination with a rocker bistable.
  • the operation of the device is described with reference to the preferred embodiment described above first, but this description is also valid analogically for the aforementioned alternatives.
  • the figure 2a corresponds to the rest position of the spring 3 respectively of the control lever 1, or even of the entire device, already illustrated for example to Figures 1a, 1c, and 1d .
  • the base 3.1.2.1 of the free end 3.1.2 forming a stop presses on one side at the groove 2.1 of the pin 2.
  • the distance between the tip of the free end 3.1.2 and the fixed end 3.1.1 is in this operating position of the spring 3 again lower than the inside diameter D I from pin 2 to level its groove 2.1, and the axis of the pin 2 is, in this position, on the other side of the tip of the free end 3.1.2 relative to the rest position of the spring 3. It is therefore it is necessary to supply a predefined force again for spacing the two fixed ends 3.1.1 and free 3.1.2 in this position in order to return the pin 2 or the control lever 1 in its rest position. In this way, it is possible to provide a control device which has two stable positions and which is therefore particularly suitable for use in combination with a flip-flop type control.
  • the figure 3c shows schematically, in a view from above, the operation of a corresponding control device in its third step, namely when the device is in its actuating position.
  • the figure 3c shows that, in the operating position of this embodiment of the device, the distance between the tip of the free end 3.1.2 and the fixed end 3.1.1 may be less than or substantially equal to the inside diameter D I pin 2 at its groove 2.1 because of the presence of the linear part 3.1.2.2 mentioned above.
  • the linear part 3.1.2.2 of the tip of the free end 3.1.2 and the guiding part 3.1.1.1 of the fixed end 3.1.1 of the spring 3 form, in fact, in the position of actuating the spring 3 of this embodiment, substantially a V, but with a smaller angle relative to the V formed in the rest position by the base 3.1.2.1 and the guide portion 3.1.1.1. Even in the actuating position, the pin 2 is therefore prestressing by the guide part 3.1.1.1 and the linear part 3.1.2.2 to return to its rest position.
  • this control device has only one stable position and is therefore particularly suitable for use in combination with a push button type monostable control.
  • the relevant parts 3.1.1.1, 3.1.2.1 of the fixed ends 3.1.1 and free 3.1.2 of the spring 3 are located always in the groove 2.1 of the pin 2.
  • the arrangement according to the technical instruction of the present invention allows to provide a height maintenance as well as in the transverse direction relative to the longitudinal axis of the control lever 1.
  • the third direction of the space is not critical in this respect. This optimally prevents any deformation or fracture of the control lever and ensures particularly safe operation and reliable of this kind of control device.
  • the dynamic spring 3 of a particular shape makes it possible to perform the function known in principle in the prior art that the corresponding push-button requires a predefined threshold value of the support force for driving. at the actuation of the corresponding function, this by a relatively simple design of said spring 3.
  • the choice of the geometric shape, the dimensions, and / or the spacing of the two arms of the spring 3 makes it possible to vary this value threshold.
  • the choice of the length of the spring arm 3 providing its free end or its geometrical shape, in particular parts 3.1.2.1 and 3.1.2.2 of the free end 3.1.2 makes it possible to adapt the control device to use either with a monostable pushbutton or with a flip-flop.
  • a control device comprising the features mentioned above has the important advantage of being able to cooperate in a conventional manner with the other parts of the timepiece in which it is intended to be integrated, in particular with its basic movement, so that the mechanism can easily be integrated into existing timepieces without requiring too much adjustment or even a major revision of the design of these parts.
  • these advantages are obtained without increasing the volume occupied, or even the production costs of the device or the device.
  • the mechanism is integrated into a chronograph watch, but it can also be used in other watches having functions which are preferably controlled by push buttons of the kind mentioned above.
  • the control device according to the present invention can be integrated into any kind of timepiece, whether mechanical or electronic, preferably in wristwatches.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Control Devices (AREA)
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Claims (15)

  1. Vorrichtung zum Steuern einer Uhr, die einen Steuerhebel (1) umfasst, der geeignet ist, um eine erste Ruheposition zu belegen und bei Betätigen eines Steuerorgans eine zweite Betätigungsposition, wobei die Vorrichtung eine Feder (3) umfasst, die es erlaubt, einen Schwellenwert für die Betätigungskraft zu definieren, die auf dem Steuerorgan notwendig ist, damit der Steuerhebel (1) von seiner ersten Position zu seiner zweiten Position übergeht, dadurch gekennzeichnet, dass der Steuerhebel (1) ein vorragendes Element (2) umfasst, das mit der Feder (3) zusammenwirkt, wobei das vorragende Element (2) mindestens ein erstes Führungsmittel (2.1) umfasst, das geeignet ist, um mit mindestens einem zweiten Führungsmittel (3.1.1.1), das auf eine fest angebrachte Struktur (4) der Uhr montiert ist, zusammenzuwirken.
  2. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das vorragende Element mittels eines Stifts (2) verwirklicht ist, und dass das erste Führungsmittel aus einer Nut (2.1) besteht, die auf dem Umfang des Stifts (2) des Steuerhebels (1) angeordnet ist, wobei das zweite Führungsmittel mittels eines Führungsteils (3.1.1.1) verwirklicht ist, der auf der Feder (3) angeordnet ist, die auf dem Gehäuse (4) der Uhr montiert ist, wobei mindestens der Führungsteil (3.1.1.1) der Feder (3) in der Nut (2.1) aufgenommen ist.
  3. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Nut (2.1), die auf dem Umfang des Stifts (2) des Steuerhebels (1) angeordnet ist, eine Höhe aufweist, die im Wesentlichen der Höhe der Feder (3) entspricht.
  4. Vorrichtung nach einem der vorstehenden Ansprüche 2 bis 3, dadurch gekennzeichnet, dass die Nut (2.1), die auf dem Umfang des Stifts (2) des Steuerhebels (1) angeordnet ist, eine Tiefe hat, die in einem Bereich von 40 % bis 150 % der Breite des mindestens einen Teils der Feder (3), der dazu bestimmt ist, in der Nut (2.1) aufgenommen zu sein, liegt, so dass ein Innendurchmesser (DI) des Stifts (2) definiert ist.
  5. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Nut (2.1) kreisförmig oder nur auf einer oder zwei Seiten des Stifts (2) angebracht ist.
  6. Vorrichtung nach einem der vorstehenden Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Feder (3) einen ersten Teil (3.1) im Wesentlichen in U-Form umfasst, dessen fest angebrachtes Ende (3.1.1) neben einem zweiten Teil (3.2) der Feder liegt, der an dem Gehäuse (4) der Uhr befestigt ist, und dessen anderes Ende (3.1.2) frei ist, wobei die Entfernung zwischen der Spitze des freien Endes (3.1.2) und dem fest angebrachten Ende (3.1.1) in der Ruheposition der Feder (3) kleiner ist als der Innendurchmesser (DI) des Stifts (2) im Bereich seiner Nut (2.1).
  7. Vorrichtung nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das freie Ende (3.1.2) der Feder (3) eine Spitze im Wesentlichen in L-Form aufweist, deren Basis (3.1.2.1) einen Anschlag bildet und in der Ruheposition der Feder (3) im Bereich der Nut (2.1) des Stifts (2) auf seinem Innenumfang aufliegt.
  8. Vorrichtung nach einem der Ansprüche 6 bis 7, dadurch gekennzeichnet, dass das fest angebrachte Ende (3.1.1) der Feder (3) an seiner Spitze den besagten Führungsteil (3.1.1.1) gefolgt von einem gekrümmten Teil (3.1.1.2), der geeignet ist, um den besagten Stift (2) aufzunehmen, umfasst.
  9. Vorrichtung nach einem der vorstehenden Ansprüche 7 und 8, dadurch gekennzeichnet, dass die Basis (3.1.2.1) der Spitze in L-Form des freien Endes (3.1.2) und der Führungsteil (3.1.1.1) des fest angebrachten Endes (3.1.1) in der Ruheposition der Feder (3) im Wesentlichen ein V bilden, das in dem Bereich der Nut (2.1) des Stifts (2) auf zwei Seiten auf seinem Innendurchmesser (DI) aufliegt.
  10. Vorrichtung nach einem der vorstehenden Ansprüche 2 bis 9, dadurch gekennzeichnet, dass der Führungsteil (3.1.1.1), der auf der Feder (3) angeordnet ist, bezüglich der Schwenkachse (1.1) des Steuerhebels (1) konzentrisch ist.
  11. Vorrichtung nach einem der vorstehenden Ansprüche 6 bis 10, dadurch gekennzeichnet, dass das freie Ende (3.1.2) der Feder (3) eine Länge und/oder eine geometrische Form aufweist, die derart ausgewählt ist, dass die Entfernung zwischen der Spitze des freien Endes (3.1.2) und des fest angebrachten Endes (3.1.1) in der Betätigungsposition der Feder (3) kleiner ist als der Innendurchmesser (DI) des Stifts (2) im Bereich seiner Nut (2.1), und dass die Achse des Stifts (2) auf der anderen Seite der Spitze des freien Endes (3.1.2) bezüglich der Ruheposition der Feder (3) derart liegt, dass die Steuervorrichtung über zwei stabile Positionen verfügt.
  12. Vorrichtung nach einem der vorstehenden Ansprüche 6 bis 10, dadurch gekennzeichnet, dass das freie Ende (3.1.2) der Feder (3) eine Länge und/oder eine geometrische Form aufweist, die derart ausgewählt ist, dass die Entfernung zwischen der Spitze des freien Endes (3.1.2) um dem fest angebrachten Endes (3.1.1) in der Betätigungsposition der Feder (3) kleiner als oder im Wesentlichen gleich dem Innendurchmesser (DI) des Stifts (2) im Bereich seiner Nut (2.1) ist, derart, dass der Stift (2) vorgespannt ist, um in seine Ruheposition zurückzukehren, so dass die Steuervorrichtung über eine einzige stabile Position verfügt.
  13. Uhr, insbesondere mechanische Uhr oder Armbanduhr, dadurch gekennzeichnet, dass sie eine Steuervorrichtung nach einem der vorstehenden Ansprüche umfasst.
  14. Uhr nach einem der vorstehenden Ansprüche 11 und 13, dadurch gekennzeichnet, dass die Steuervorrichtung mit einer bistabilen Wippe verbunden ist.
  15. Uhr nach einem der vorstehenden Ansprüche 12 und 13, dadurch gekennzeichnet, dass die Steuervorrichtung mit einem monostabilen Drücker verbunden ist.
EP12182738.0A 2011-09-05 2012-09-03 Steuerungsvorrichtung für uhren Active EP2565726B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01449/11A CH705461A1 (fr) 2011-09-05 2011-09-05 Dispositif de commande pour pièce d'horlogerie.

Publications (3)

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EP2565726A2 EP2565726A2 (de) 2013-03-06
EP2565726A3 EP2565726A3 (de) 2017-11-08
EP2565726B1 true EP2565726B1 (de) 2019-02-06

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745758A (en) * 1971-08-25 1973-07-17 Suwa Seikosha Kk Electric and electronic timepiece
JPS5921478Y2 (ja) * 1976-05-06 1984-06-25 セイコーエプソン株式会社 時計のスイツチ構造
JPS5466877U (de) * 1977-10-20 1979-05-12
CH645235GA3 (de) * 1981-04-23 1984-09-28
CH664863GA3 (de) 1986-04-09 1988-04-15
CH681189B5 (de) 1991-02-05 1993-08-13 Complications Sa
JP4409707B2 (ja) * 1999-04-22 2010-02-03 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 押しボタン機構および当該機構を装着した時計

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP2565726A2 (de) 2013-03-06
CH705461A1 (fr) 2013-03-15
EP2565726A3 (de) 2017-11-08

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