EP4279997A1 - Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks - Google Patents

Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks Download PDF

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Publication number
EP4279997A1
EP4279997A1 EP22174402.2A EP22174402A EP4279997A1 EP 4279997 A1 EP4279997 A1 EP 4279997A1 EP 22174402 A EP22174402 A EP 22174402A EP 4279997 A1 EP4279997 A1 EP 4279997A1
Authority
EP
European Patent Office
Prior art keywords
crown
unlocked position
guide tube
sleeve
control member
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.)
Pending
Application number
EP22174402.2A
Other languages
English (en)
French (fr)
Inventor
Hervé Bouclier
Philip Barat
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP22174402.2A priority Critical patent/EP4279997A1/de
Publication of EP4279997A1 publication Critical patent/EP4279997A1/de
Pending legal-status Critical Current

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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/002—The setting apparatus being crown shaped

Definitions

  • the present invention relates to a control member of at least one function of a watch movement, said control member comprising a guide tube of longitudinal axis A, a crown and a system for assembling the crown to the guide tube arranged to allow the crown to be movable between a locked position in which it is secured to the guide tube and at least one unlocked position in which the crown is free relative to the guide tube to be able to activate said function, said crown comprising a head, an axial skirt, a sleeve secured to the head and movably mounted in the guide tube, a piston intended to be kinematically connected to the movement and arranged to be able to be kinematically linked to the sleeve when the crown is in the unlocked position by means of a coupling device, and a spring arranged to be compressed between the head and the piston when the crown is in the locked position.
  • the present invention also relates to a timepiece comprising at least one such control member.
  • Such a control member is traditionally used in the field of watchmaking to constitute for example a time setting crown, the piston being intended to be kinematically connected to the time setting rod of the movement.
  • the crown protrudes from the middle to be able to be grasped by a user in order to be able, for example, to set the time by rotating the crown and to be able to be pulled axially into at least one other position to select other functions, such as a correction, the function being carried out by a rotation of the crown.
  • the present invention aims to remedy these drawbacks by proposing a control member making it possible to have a crown which protrudes from the middle, secured in a locked position and which can be unlocked without risk of involuntarily activating a mechanism of the movement to which the crown is linked kinematically, and in particular without the risk of disrupting such a mechanism.
  • the invention relates to a control member for at least one function of a watch movement, said control member comprising a guide tube with longitudinal axis A, a crown and a crown assembly system to the guide tube arranged to allow the crown to be movable between a locked position in which it is secured to the guide tube and at least one unlocked position in which the crown is free relative to the guide tube to be able to operate said function , said crown comprising a head, an axial skirt, a sleeve secured to the head and movably mounted in the guide tube, a piston intended to be kinematically connected to the movement and arranged to be able to be kinematically linked to the sleeve when the crown is in the unlocked position by means of a coupling device, and a spring arranged to be compressed between the head and the piston when the crown is in the locked position.
  • said assembly system comprises locking means arranged to allow the crown to be held in its locked position and to be moved between its locked position and a first intermediate unlocked position by a given axial rotational movement to the crown and guide means arranged to give the crown at least one axial translation movement during its movement between its first intermediate unlocked position and its unlocked position, the coupling device being arranged to engage and disengage the sleeve and the piston during said axial translation of the crown.
  • the invention makes it possible to unlock and lock the crown on its guide tube by a voluntary rotational movement of the crown, as for a screw crown, but avoiding any untimely rotation of the control rod secured to the piston, the sleeve and the piston being sufficiently distant from each other to be disengaged with certainty when the user turns the crown to lock or unlock it.
  • the system for assembling the crown to the guide tube is bayonet and the coupling device of the sleeve and the pinion is arranged to engage the sleeve and the pinion just before the crown reaches its position unlocked and to disengage the sleeve and pinion just after the crown has left its unlocked position.
  • the present invention also relates to a timepiece comprising at least one control member as described above.
  • the present invention relates to a control member 1 of at least one function of a watch movement, said control member comprising a guide tube 2 of longitudinal axis A mounted integrally in a middle part 4 of a watch case intended to receive said watch movement, a crown 6, and a system for assembling the crown 6 to the guide tube 2 arranged to allow the crown 6 to be movable between a position locked, shown on the figure 1 , in which it is integral with the guide tube 2 and at least one unlocked position, shown on the Figure 5 , in which the crown is free relative to the guide tube 2 to be able to operate said function.
  • This may be the time setting function to which other functions may also be added such as setting the date or other corrections, the function being selected by moving the crown 6 axially until a certain distance from the movement. The selected function can then be modified by rotating the crown 6.
  • the control member 1 is mounted on the middle part 4 so that the crown 6 protrudes from the middle part 4, including when the crown 6 is in the locked position.
  • the guide tube 2 is intended to be fixed by screwing or driving into the middle part 4. It has a symmetry of revolution with respect to a longitudinal axis A constituting the axis of translation and rotation of the crown 6.
  • the crown 6 comprises, in a conventional manner, a head 8, an axial skirt 10 forming the cylindrical side walls of the crown 6, a sleeve 12 secured to the head 8 and movably mounted in the guide tube 2, and a piston 14 intended to be kinematically connected to the movement by a control rod 16, such as a time setting rod, the assembly having a symmetry of revolution around the axis A.
  • the piston 14 is slidably mounted in the sleeve 12.
  • the piston 14 is arranged to be able to be linked kinematically to the sleeve 12, and therefore to the head 8, when the crown 6 is in its unlocked position, by means of a coupling device which will be described in more detail below .
  • a spring 18 is also provided, such as a coil spring, disposed inside the sleeve 12, and arranged to be compressed between the head 8 and a shoulder 19 of the piston 14 when the crown 6 is in the locked position, of so as to exert a restoring force tending to move the head 8 away from the middle part 4 when the crown 6 is no longer in the locked position.
  • a groove 20 is arranged on a circumference of the interior wall of the guide tube 2.
  • a seal ring 22 is arranged there in such a way that it is in contact with the sleeve 12 sliding in the guide tube 2.
  • the assembly system comprises locking means arranged to allow the crown 6 to be held in its locked position, as shown in the figure 1 , and to be able to be moved between its locked position and a first intermediate unlocked position by an axial rotational movement given to the crown 6.
  • the assembly system also comprises means for guiding in axial translation arranged to guide the crown 6 so as to that it can move at least in an axial translation movement during its movement between its first intermediate unlocked position and its unlocked position, as shown in the Figure 5 , the coupling device being arranged to engage and disengage the sleeve 12 and the piston 14 only during said axial translation of the crown 6.
  • the system for assembling the crown 6 to the guide tube 2 is bayonet.
  • the skirt 10 of the crown 6 has at least one prominent member 24 projecting towards the guide tube 2.
  • the number of prominent members 24 is at least two, advantageously equal to 3 or 4, the prominent members 24 being distributed uniformly on the peripheral axial wall of the skirt 10.
  • the prominent member 24 is a pin projecting from the interior peripheral wall of the skirt 10 in the direction of the guide tube 2.
  • the skirt 10 advantageously comprises a first inner ring 26 mounted integrally around the inner peripheral axial wall 10a of the skirt 10, so as to fit it.
  • the prominent member 24 projects from the inner peripheral face of said first ring 26, towards the guide tube 2.
  • the guide tube 2 has on its outer peripheral circular wall 2a, facing the skirt 10, at least one groove 28 in which the prominent member 24 can engage when the crown 6 is between its locked position and a second intermediate unlocked position, the crown 6 being free to be moved in rotation and in axial translation relative to the guide tube 2 between its second intermediate position and its unlocked position, it that is to say just after leaving its second intermediate position or just before returning to its second intermediate position.
  • the first and second intermediate unlocked positions are positions through which the crown 6 passes instantly between its locked and unlocked positions.
  • the guide tube 2 may include, in its upper part, a central notched opening 29 allowing the tube 2 to be screwed in using a suitable tool.
  • the guide tube 2 comprises a second outer ring 30 arranged integrally around the outer peripheral circular wall 2a of the guide tube 2, so as to fit it.
  • the second ring 30 has said groove 28 on its peripheral wall.
  • the second ring 30 can be produced for example by laser cutting and can be mounted integrally on the guide tube 2 by brazing, as shown in the figure. Figure 5 .
  • the second ring 30 can be integral with the guide tube 2 to form a single part.
  • the groove 28 comprises at least a first portion 28a having an elongated curved shape extending substantially perpendicular to the longitudinal axis A. At least one edge 32 of the first portion 28a following a circumference of the second ring 30 and located on the side of the head 8 of the crown 6 can cooperate with the prominent member 24 to form the locking means when the crown 6 moves between its locked position and its first intermediate unlocked position during an axial rotation movement given voluntarily to the crown 6 by a user.
  • the edge 32 of the first portion 28a of the groove 28 prevents any movement in axial translation of the protruding member 24 towards the outside of the guide tube 2.
  • the length of the first portion 28a can correspond for example to a rotation of an angle of 45° of the prominent member 24 in the counterclockwise direction.
  • the groove 28 comprises a second portion 28b communicating with the first portion 28a, extending substantially along the longitudinal axis A and opening out at the end of the guide tube 2 in the direction of the head 8 of the crown 6 to constitute the entry of the prominent member 24 into the groove 28 and the exit of the prominent member 24 from said groove 28.
  • the second portion 28b is configured so that the prominent member 24 moves in said second portion 28b substantially in axial translation during when the crown 6 moves between its first intermediate unlocked position and its second intermediate unlocked position, said second portion 28b constituting said guide means.
  • the second portion 28b of the groove 28 prevents any movement in axial rotation of the prominent member 24 and therefore of the crown 6 during its movements between its first intermediate unlocked position and its second intermediate unlocked position.
  • the groove 28 comprises a third portion 28c communicating with the first portion 28a, and opposite the second portion 28b, said third portion 28c constituting a safety device to guarantee the maintenance of the crown 6 in its locked position .
  • Said third portion 28c may have the shape of a notch arranged to secure the locked position of the crown, the prominent member 24 being blocked in the notch in axial rotation and allowed to move in axial translation by pressure on the crown 6 to exit of the notch and be able to enter the first portion 28a.
  • groove 28 could be provided directly on the guide tube 2.
  • the dimensions of the groove 28 are adapted to the dimensions of the protruding member 24, and in particular of the pin. It is obvious that the pin can be replaced by a larger, prominent member, for example forming an ear. In this case, the dimensions and shape of the groove 28, and in particular the width and shape of the second portion 28b, are adapted accordingly, to allow circulation in rotation and in axial translation of the prominent member 24 in groove 28.
  • the sleeve 12 which slides on the piston 14, has a first internal toothing 34, and the piston 14 has a second external toothing 36, said first and second teeth 34, 36 forming the coupling device.
  • the teeth 34, 36 advantageously allow indexing of the coupling device, ensuring precise positioning of the sleeve 12 relative to the piston 14 when they couple to cooperate when the crown 6 reaches its unlocked position.
  • the teeth 34 and 36 are positioned respectively on the sleeve 12 and the piston 14 so that the sleeve 12 and the piston 14 cannot cooperate when the crown 2 moves in axial rotation between its locked position and its first intermediate unlocked position, and that the sleeve 12 and the piston 14 can engage and disengage only when the crown 2 moves in axial translation, preferably between its second intermediate unlocked position and its unlocked position.
  • the coupling device of the sleeve 12 and the pinion 14 is arranged to engage the sleeve 12 and the pinion 14 just before the crown 6 reaches its unlocked position and to disengage the sleeve 12 and the pinion 14 just after the crown 6 has left its unlocked position.
  • the first toothing 34 is arranged at the free end 12a of the sleeve 12 and the second toothing 36 is arranged around the piston 14 under the shoulder 19 so as to mesh with the first toothing 34 when the crown 6 reaches its unlocked position.
  • the free end 12a of the sleeve abuts against the shoulder 19 of the piston 14 so as to be able to drive said piston 14 and therefore the control rod 16 when the crown 6 is pulled axially into another axial position further from the middle part 4 to activate another function.
  • the operation of the control member 1 according to the invention is as follows: When the crown 6 is held secure in its locked position on the guide tube 2, as shown in the figure 1 , the pins 24 are housed in their respective notches 28c of the grooves 28 so that the crown 6 is blocked in axial rotation and in axial translation in the event of traction of the head 8. Any untimely operation of the crown 6 is therefore impossible.
  • the skirt 10 of the crown 6 is close to the middle part 4, the head 8 protruding from said middle part 4.
  • a clearance is however provided to be able to press on the head 8 in the direction of the middle part 4 in order to release the pins 24 from the notches 28c of the groove 28.
  • the control rod 16 pushes the piston 14, the sleeve 12 and the piston 14 being disengaged.
  • the crown 6 is unlocked in axial rotation, each pin 24 being able to circulate in axial rotation in the first portion 28a of the corresponding groove 28.
  • the user then turns the crown 6 by 45° counterclockwise so that each pin 24 reaches the second portion 28b of the corresponding groove 28, the crown 6 then reaching its first intermediate unlocked position.
  • the sleeve 12 and the piston 14 are positioned relative to each other so that the first and second teeth 34, 36 are sufficiently distant from each other preventing any clutching during this axial rotation movement. . There is therefore no risk of driving the control rod 16, and therefore no risk of disrupting a mechanism, when unlocking the crown 6 by rotation.
  • the crown 6 continues its movement in axial translation, the head 8 moving away from the middle part 4, without rotation, until reaching its unlocked position, shown on the Figure 5 , in which the free end 12a of the sleeve 12 abuts against the shoulder 19 of the piston 14, the first and second teeth 34, 36 of the sleeve 12 and the piston 14 being able to mesh to engage the sleeve 12 and the piston 14.
  • the crown 6 is now free to be moved in rotation to activate a first function.
  • the crown 6 is also free to be pulled in axial translation and rotated to select and operate a second function.
  • crown 6 takes place in the same way in reverse.
  • the user presses on the head 8 to push the crown 6, and therefore the pins 24, towards the guide tube 2, from its unlocked position to its second intermediate unlocked position.
  • the sleeve 12 moves away from the piston 14 so that they disengage immediately.
  • the control rod 16 and therefore of disrupting a function
  • the crown 6 is then turned to lock it.
  • the user can slightly turn the crown 6 to rotate the entrance to the second portion 28b of the grooves 28, as shown in the figure. Figure 4 , and pass the crown 6 through its second intermediate unlocked position.
  • control member according to the invention advantageously makes it possible to engage and disengage the sleeve 12 and the piston 14 only during movements in axial translation of the crown, which makes it possible to avoid driving the control rod, and therefore to accidentally activate a function of the watch, when rotating the crown 6 for its locking and unlocking.
  • control member according to the invention makes it possible to avoid a rod with three axial positions, which simplifies the construction of the movement. It also allows you to have a direct action on the movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP22174402.2A 2022-05-19 2022-05-19 Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks Pending EP4279997A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22174402.2A EP4279997A1 (de) 2022-05-19 2022-05-19 Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22174402.2A EP4279997A1 (de) 2022-05-19 2022-05-19 Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks

Publications (1)

Publication Number Publication Date
EP4279997A1 true EP4279997A1 (de) 2023-11-22

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ID=81749295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174402.2A Pending EP4279997A1 (de) 2022-05-19 2022-05-19 Organ zur steuerung mindestens einer hauptfunktion eines uhrwerks

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EP (1) EP4279997A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007132779A (ja) * 2005-11-10 2007-05-31 Citizen Watch Co Ltd 時計用リューズ構造
EP2827202A2 (de) * 2013-07-17 2015-01-21 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Steuervorrichung für Uhren
EP2975468A2 (de) * 2014-07-15 2016-01-20 Patek Philippe SA Genève Drücker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007132779A (ja) * 2005-11-10 2007-05-31 Citizen Watch Co Ltd 時計用リューズ構造
EP2827202A2 (de) * 2013-07-17 2015-01-21 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Steuervorrichung für Uhren
EP2975468A2 (de) * 2014-07-15 2016-01-20 Patek Philippe SA Genève Drücker

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