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EP4383015A1 - Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil - Google Patents

Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil Download PDF

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Publication number
EP4383015A1
EP4383015A1 EP22212544.5A EP22212544A EP4383015A1 EP 4383015 A1 EP4383015 A1 EP 4383015A1 EP 22212544 A EP22212544 A EP 22212544A EP 4383015 A1 EP4383015 A1 EP 4383015A1
Authority
EP
European Patent Office
Prior art keywords
crown
rotation
hook
pawl
output 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
EP22212544.5A
Other languages
English (en)
French (fr)
Inventor
Mathieu MARANGÉ
Anthony Krüttli
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 EP22212544.5A priority Critical patent/EP4383015A1/de
Publication of EP4383015A1 publication Critical patent/EP4383015A1/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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B13/00—Gearwork
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement

Definitions

  • the present invention relates to a watchmaking device for transforming a first rotation into a second rotation, at least partly jerky.
  • a watchmaking device for transforming a first rotation into a second rotation, at least partly jerky.
  • Such a device can be used for example for the jumping display of a temporal quantity of the hour, minute, second, date, day, week or other type or for driving a automaton.
  • the device described in this patent application comprises a continuously driven seconds wheel and a pawl holder coaxial with this seconds wheel.
  • a ratchet is articulated around a pin.
  • the pawl holder is connected to the seconds wheel by a spiral spring.
  • the ratchet comprises a nose engaged in internal teeth of a fixed crown.
  • it carries a pin engaged in an oblong hole in the seconds wheel, allowing the pawl to oscillate when the seconds wheel turns.
  • the seconds wheel rotating continuously, arms the balance spring and at the same time activates the pawl.
  • the ratchet leaves one tooth on the ring gear, it jumps and stops against the next tooth.
  • the ratchet holder thus moves in jumps.
  • An aim of the invention is to propose a watchmaking device for transforming a first rotation into a second rotation which is at least partly jerky, the adjustment of which is easy and rapid.
  • a timepiece comprising such a timepiece device and by a method of adjusting such a timepiece device.
  • a watchmaking device comprising a rotating input member, a rotating output member, a crown having internal teeth, at least one pawl controlled by the rotating input member and cooperating with the internal teeth to drive the output member in an at least partly jerky manner, the crown being configured to be moved between a connected position in which the internal teeth can come into contact with the pawl and a disconnected position in which the internal teeth cannot come into contact with the ratchet.
  • the transformation of the first rotation into a second rotation which is at least partly jerky can be deactivated, for example for the duration of an adjustment of the device, for example when setting the time of a piece of equipment. clockwork comprising the device, or a reset of the device. Such deactivation may also be desirable for temporarily continuous operation of the device display.
  • the crown is for example configured to be moved between the connected position and the disconnected position by pivoting around an imaginary axis located at the center of the crown.
  • the crown comprises for example an outer wheel and a plurality of hooks arranged inside the outer wheel, each hook comprising a tooth, the teeth constituting the internal teeth, each hook being configured so that when the crown is in the connected position the tooth of hook can contact the pawl and when the crown is in the disconnected position, the tooth of the hook cannot contact the pawl.
  • Each hook is for example mounted to rotate freely on an axis of rotation which is specific to it and is driven by the outer wheel so that each hook is pivoted on its axis of rotation when the outer wheel is pivoted around the imaginary axis.
  • each hook comprises gear teeth which mesh with gear teeth of the outer wheel.
  • each hook is connected to the outer wheel by a flexible blade.
  • the rotating output member is integral in rotation with a core configured to allow the return of the rotating output member to a predetermined angular position, for example with the aim of resetting the corresponding display.
  • a timepiece for example a watch, comprising such a timepiece device.
  • the timepiece includes for example a winding stem linked to the crown so as to be able to move the crown between the connected position and the disconnected position.
  • a method of adjusting such a timepiece comprising the steps of moving the crown into its disconnected position, rotation of the rotating input member, movement of the crown into its connected position.
  • the movement of the crown in its disconnected position, the rotation of the rotary input member and the movement of the crown in its connected position are for example controlled by a winding stem of the timepiece.
  • a method of resetting the display of such a timepiece comprising the steps of moving the crown into its disconnected position, rotating of the rotating output member, movement of the crown into its connected position.
  • the rotation of the rotating output member is for example carried out using a core/hammer mechanism, the core being integral in rotation with the rotating output member.
  • a watchmaking device 1 is intended to be integrated into a movement of a timepiece, typically a watch. It comprises a rotating input member 2, a rotating output member 3, a crown 4 comprising an external wheel 40 and internal teeth, a pawl 6 and an intermediate member 7 movable relative to the rotating input and output members 2, 3 and crown 4. In normal operation, crown 4 is fixed.
  • the rotating input member 2, the rotating output member 3, the crown 4 and the intermediate member 7 are coaxial.
  • the output rotating member 3, the pawl 6 and the intermediate member 7 are part of a monolithic part which is coplanar with the input rotating member 2 and the crown 4, the input rotating member 2 being located in the center of the device 1 and the crown 4, in particular the wheel 40, constituting the periphery of the device 1.
  • the pawl 6 is connected, in the monolithic part, to the intermediate member 7 by a first flexible guide 8, here a simple elastic blade.
  • the rotating output member 3 and the intermediate member 7 are connected, in the monolithic part, by a second flexible guide 9, here consisting of two elastic RCC blades (“Remote Center Compliance”; flexible guide with offset center of rotation) .
  • the pawl 6 can pivot relative to the intermediate member 7 around a pivot point which is located approximately one third of the length of the blade 8 measured from the pawl 6, and the intermediate member 7 can pivot around the common imaginary axis 10 of the members 2, 3, 4, 7 by being guided by the rotating output member 3.
  • the rotating output member 3 is for example integral with a display disc which is guided in rotation around the axis 10 by the shaft on which the member is mounted rotary input 2.
  • the rotating output member 3 and the display disk are assembled for example using pins glued, welded or otherwise fixed to the display disk and inserted into ears of the rotating output member 3, or using any other appropriate means.
  • the rotating output member is integral with a needle or any other indicating member, which is preferably guided in rotation around the axis 10 by the shaft on which the rotating member is mounted. input 2.
  • the indicator member and the rotating output member 3 are then assembled by any suitable known means.
  • the rotary input member 2 is continuously rotated around the axis 10 in the clockwise direction by the movement motor member.
  • the rotary input member 2 is integral with a pinion or a wheel (not shown) kinematically connected to the finishing gear of the movement.
  • the rotary input member 2 comprises two meshing teeth 11 which accommodate between them a first meshing tooth 12 of the pawl 6.
  • a second meshing tooth 13 of the pawl 6, diametrically opposed to the first with respect to the point pivoting, is engaged between two meshing teeth 14 of the rotating output member 3.
  • the internal teeth consist of a series of teeth 15 forming part of hooks 5.
  • Each hook 5 preferably comprises a tooth 15 against which the nose 16 of the pawl 6 can rest under the action of the flexible guides 8, 9.
  • the rotation of the rotary input member 2 causes the nozzle 16 to slide on the stopping surface of the tooth 15 on which it is located and pivot the pawl 6 in the counterclockwise direction by deforming the flexible guides 8, 9 until so that the nose 16 comes out of the internal teeth.
  • the intermediate member 7, the flexible guides 8, 9 and the meshing teeth 11, 12, 13, 14, more specifically their gear ratios, are preferably configured in such a way that the rotating output member 3 remains stationary while the pawl 6 pivots while sliding on the tooth 15.
  • the pawl 6 is released and the restoring force of the flexible guides 8, 9 causes it to fall onto the tooth 15 of the next hook, taking with it the output member 3 by its second meshing tooth 13.
  • the output member 3 and the display disk thus move in jumps, which allows for example to display digitally the current time, the units and the tens of the current minutes, a timed time, a countdown, the date, the day, the week, the power reserve, or other.
  • Device 1 offers great freedom as to the movement that we wish to produce at the output.
  • Information can thus be displayed instantaneously, as described above, or semi-trailingly. It is also possible to control an automaton according to an irregular rotation pattern.
  • the crown 4 can take two stable positions: a connected position illustrated in the figure 1 , in which the hooks 5, more precisely the teeth 15, can come into contact with the nozzle 16, and a disconnected position illustrated in figure 2 , in which the hooks 5 are spaced from the center of the device so that the teeth 15 cannot come into contact with the nozzle 16.
  • the connected position is typically the position in which the crown 4 is located during normal operation of the watch device 1 of the invention and the disconnected position is the position in which the crown 4 is located for example when adjusting the display of the watch device 1.
  • the transition from one position to another can also be used to switch from one operating mode of the device of the invention to another, for example from a jumping display operating mode to a continuous display operating mode.
  • each hook 5 is mounted in free rotation on a pin not shown around an axis of rotation 50 specific to each hook 5.
  • Each hook 5 is kinematically linked to the outer wheel 40, so that when the outer wheel 40 is pivoted around the imaginary axis 10, each hook 5 is pivoted around its axis of rotation 50.
  • Each hook 5 comprises for example two meshing teeth 17 which mesh with two meshing teeth 18 of the outer wheel 40.
  • the rotating input member 2, the rotating output member 3, the pawl 6 and the intermediate member 7 can thus rotate together freely continuously without coming into contact with the crown 4, which allows for example adjustment fast and in both directions of the display, for example for setting the time or resetting the timepiece to zero.
  • the rotating output member 3 drives a display or indication member which must be reset to zero during its operation, such as for example a needle or a display disc of chronograph.
  • the rotating output member 3 is then preferably integral in rotation with a heart not shown allowing in a known manner the display to be reset to zero using a hammer. According to the invention, during the reset, the crown 4 is in its disconnected position in order to allow the free rotation of the rotating output member 3.
  • the crown 4 is returned to its connected position by the clockwise pivoting of the outer wheel 4 around the imaginary axis 10, causing thus the hooks 5 pivot clockwise around their respective axes of rotation 50, thus approaching their teeth 15 to the center of the device 1, so that they can come into contact again with the pawl 6.
  • the movement of the crown 4 from one position to another is for example controlled via a control arm 41 secured to the outer wheel 4 on which acts for example a member of the timepiece.
  • the crown 4 is for example controlled by a winding stem (not shown) of the timepiece, so that when the winding stem is in the pulled position, for example for adjusting the display of the timepiece, the crown 4 is moved, for example pivoted, into its disconnected position, and when the winding stem is in the pushed position, the winding stem is in its connected position.
  • the device 1 comprises several pawls 6 each driven by the rotary input member 2 and connected for example each by a flexible guide 8 to a respective intermediate member 7.
  • the input rotating member 2, the output rotating member 3 and the crown 4 are coaxial and in the same plane.
  • this construction is particularly compact and advantageous, other embodiments are possible within the framework of the invention, for example in which the different members are in different planes and/or in rotation around different axes.
  • the present invention is applicable for example to a device as described in the patent application CH 709375 where the ratchet is a part articulated around a pin on a pawl holder coaxial with the rotary input member and where no intermediate member of the type of intermediate member 7 is provided.
  • the display driven by the rotating output member may differ from the disk mentioned in the examples above and be for example a needle, a member of a automaton or any other indicating or display member. display.
  • the rotation of the rotary input member 2 could be jerky rather than continuous, the device 1 then serving to transform a first jerky rotation into a second jerky rotation, different from the first.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP22212544.5A 2022-12-09 2022-12-09 Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil Pending EP4383015A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22212544.5A EP4383015A1 (de) 2022-12-09 2022-12-09 Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22212544.5A EP4383015A1 (de) 2022-12-09 2022-12-09 Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil

Publications (1)

Publication Number Publication Date
EP4383015A1 true EP4383015A1 (de) 2024-06-12

Family

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Family Applications (1)

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EP22212544.5A Pending EP4383015A1 (de) 2022-12-09 2022-12-09 Uhrvorrichtung zur umwandlung einer ersten drehbewegung in eine zweite drehbewegung, mindestens teilweise gegabeltes teil

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EP (1) EP4383015A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH347774A (fr) * 1958-05-10 1960-07-15 Bueren Watch Company S A Montre à quantième simple
CH348362A (fr) * 1959-02-21 1960-08-15 Gigandet Charles Mécanisme d'aiguille sautante pour pièce d'horlogerie
CH702137B1 (fr) 2007-02-05 2011-05-13 Patek Philippe Sa Geneve Dispositif d'entraînement et de réglage d'un compteur instantané et pièce d'horlogerie comportant un tel dispositif.
CH709375A1 (fr) 2014-01-28 2015-08-28 Jérôme De Witt Dispositif pour indication sautante d'une pièce d'horlogerie.
EP3644130A1 (de) * 2018-10-22 2020-04-29 Dubois & Depraz S.A. Datumsmechanismus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH347774A (fr) * 1958-05-10 1960-07-15 Bueren Watch Company S A Montre à quantième simple
CH348362A (fr) * 1959-02-21 1960-08-15 Gigandet Charles Mécanisme d'aiguille sautante pour pièce d'horlogerie
CH702137B1 (fr) 2007-02-05 2011-05-13 Patek Philippe Sa Geneve Dispositif d'entraînement et de réglage d'un compteur instantané et pièce d'horlogerie comportant un tel dispositif.
CH709375A1 (fr) 2014-01-28 2015-08-28 Jérôme De Witt Dispositif pour indication sautante d'une pièce d'horlogerie.
EP3644130A1 (de) * 2018-10-22 2020-04-29 Dubois & Depraz S.A. Datumsmechanismus

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