EP3537228B1 - Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus - Google Patents

Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus Download PDF

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Publication number
EP3537228B1
EP3537228B1 EP18159935.8A EP18159935A EP3537228B1 EP 3537228 B1 EP3537228 B1 EP 3537228B1 EP 18159935 A EP18159935 A EP 18159935A EP 3537228 B1 EP3537228 B1 EP 3537228B1
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EP
European Patent Office
Prior art keywords
gong
wheel
toothed
vibration frequency
mechanical arrangement
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
EP18159935.8A
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English (en)
French (fr)
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EP3537228A1 (de
Inventor
Polychronis Nakis Karapatis
Younes Kadmiri
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.)
Montres Breguet SA
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Montres Breguet SA
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 Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP18159935.8A priority Critical patent/EP3537228B1/de
Priority to CH000263/2018A priority patent/CH714716B1/fr
Publication of EP3537228A1 publication Critical patent/EP3537228A1/de
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Publication of EP3537228B1 publication Critical patent/EP3537228B1/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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/08—Sounding bodies; Whistles; Musical apparatus
    • 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
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/028—Sounding bodies; boxes used as sounding cases; fixation on or in the case
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/08—Details or accessories of general applicability
    • G10K1/10—Sounding members; Mounting thereof; Clappers or other strikers

Definitions

  • the invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece.
  • the striking mechanism further comprises at least one gong attached to a gong holder, and at least one hammer for striking the gong at predetermined instants.
  • the stamp used is a metal wire, which can be circular or rectilinear in shape. This circular metal wire can be arranged for example around the movement, in the watch cage.
  • This gong is mounted on at least one gong holder, which is generally secured to a watch plate, or to an element of the casing.
  • the vibration of the gong is produced by the impact, generally close to the gong holder, of at least one hammer.
  • This vibration is composed of several eigenfrequencies, the number and intensity of which, in particular in the audible domain, depend on the geometry of the gong, the conditions of fixation or support of the gong, the conditions of shock and the physical properties. of the material.
  • the vibration of the timbre is also transmitted to the trim elements in the watch case via the gong holder, and radiated into the air.
  • the vibro-acoustic improvements are obtained mainly by regulation elements to limit the noise of the mechanism during a chime, but also by watch exterior elements to increase the acoustic level of The ring.
  • the timbre of the ringing mechanism is poorly optimized to improve the acoustics during a ringing (the aesthetics of the ringing).
  • the patent application EP 2 808 745 A1 describes a striking mechanism of a watch, which comprises means for selecting a vibratory mode of a gong.
  • the selection means comprise a selector element arranged in contact on a part of the gong and maintained on a vibration node of a vibrational mode of the timbre to be selected. This makes it possible to block other vibrational modes.
  • This selector element can be moved over a portion of the stamp by a moving means, which makes it possible to select a vibratory mode in a non-irreversible manner.
  • no possibility of optimizing the configuration of the gong is described in order to be able to adapt a vibration frequency in a non-irreversible manner in order to ensure fine tuning with the casing of the watch, which constitutes a drawback.
  • the patent application CH 707 078 A1 describes a gong for a striking mechanism.
  • a gong vibration frequency adjustment device is provided.
  • An element in the form of a weight is mounted on the gong to act on a part of the gong to effect local mechanical stress. This makes it possible to adjust a vibration frequency of the stamp struck.
  • this does not make it possible to precisely adjust a natural frequency of vibration, which constitutes a disadvantage.
  • the object of the invention is therefore to overcome the drawbacks of the aforementioned state of the art by providing a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which makes it possible to very finely adjust the vibration frequency of a stamp in a non-irreversible way.
  • the invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which comprises the characteristics defined in independent claims 1 to 2.
  • a mechanical stress is applied to elastically deform the gong relative to its initial configuration in order to adjust its vibration frequency.
  • Traction or compression or flexion of the gong can be performed at least locally over a portion of its length.
  • the stamp or at least a portion of the stamp can also be twisted starting from its free end.
  • the free end of the stamp is formed with at least one flat on a non-circular surface or shape so as to be inserted or taken into a shape complementary to an element of the mechanical arrangement for its torsion driving.
  • a first element of the mechanical arrangement can be engaged with a part of the gong to impose a mechanical stress on it in order to adjust the frequency of vibration of the gong.
  • the figure 1 represents a first embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • the adjustment device 1 can be part of the striking mechanism.
  • the striking mechanism comprises in particular at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown, which can be rotary or linear in order to strike the gong in determined periods. to produce sound.
  • the hammer is arranged to strike the stamp close to its attachment to the stamp holder 2.
  • the stamp holder 2 is for example fixed to an inner wall of the watch middle or also to a watch plate, which also supports the watch movement.
  • the adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch.
  • the mechanical arrangement may comprise a crown 8 linked to a winding stem 7 passing through the middle of the case. For example, by pulling or pressing on the crown with a finger of a user's hand, it may be envisaged to actuate the mechanical arrangement to adjust the vibration frequency of the gong.
  • the mechanical arrangement further comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the struck gong.
  • This first element 4 can be a ring coming on the gong, which can be in the form of a cylindrical rod. This ring can be fixed on a position of the length of the gong by means for example of a screw 4a or by another fixing means.
  • the first element 4 can also be in the form of a clip fixed to a position of the gong. According to the invention, the first element 4 coming into engagement with a part of the gong, is positioned close to a second free end of the gong 3.
  • the mechanical arrangement further comprises a wheel 6, which is a toothed wheel 6a and is mounted on the winding stem 7, and a actuation 5 in the form of a toothed rack 5a for meshing with the toothed wheel 6a.
  • This rectilinear actuation member 5 can be fixed directly to the first element 4 or be integral with the first element 4 and is arranged parallel to the gong 3, which in this form of rectilinear execution.
  • the stamp 3 can take other forms than that presented in figure 1 .
  • a further blocking element 9 may be provided to block the action of the mechanical arrangement.
  • This blocking element 9 can be an element in the form of a rotatably mounted ratchet which is placed between two teeth of the wheel 6 with teeth 6a to prevent it from rotating. It can be provided a blocking in both directions of rotation or at least in one direction of rotation. The blocking element 9 is placed in the blocking position in particular at the end of the gong vibration frequency adjustment.
  • a reduction stage may be provided between wheel 6 and rack 5 to facilitate the traction or compression of the gong.
  • the wheel 6 with teeth 6a acts directly on a notch of the first element 4 without the need for the actuating member 5.
  • the figures 2a and 2b represent a second embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • the striking mechanism comprises at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown.
  • the hammer can be mounted in rotation or in linear motion to strike the gong 3 in determined periods to produce a sound.
  • the hammer is arranged to strike the gong close to its attachment to the gong holder 2.
  • the gong holder can be fixed to an interior wall of the watch middle or also to a watch plate, which also supports the movement watchmaker.
  • the adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch.
  • the mechanical arrangement may comprise a crown 8 linked to a stem 7, for example a winding stem 7 passing through the middle of the case.
  • the mechanical arrangement comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical constraint of the gong for the adjustment of a natural frequency of vibration of the struck gong.
  • the mechanical stress in this second embodiment is a twist of at least part of gong 3.
  • This first element 4 can be a tip 4 of cylindrical shape, for example, having at a first end a non-circular opening 4′ of a shape complementary to an extrusion 3′ made at a second end of the gong 3.
  • the internal dimension of the opening 4 'of the tip is slightly greater than the outer dimension of the extrusion 3' of the stamp 3 to allow without difficulty to insert this extrusion 3' into the opening 4' of the tip 4.
  • the extrusion 3 ' is of a rectangular parallelepiped shape just like the opening 4'.
  • any other non-circular shape can be adopted for the extrusion 3' and the opening 4'.
  • the cylindrical endpiece 4 can be connected at a second end opposite the first end to the winding stem 7, which ends outside the watch case by the crown 8 for manual actuation.
  • the axis of the cylindrical end piece 4 is identical to the axis of the stem 7.
  • the gong 3 is presented in rectilinear form or any other form, and also arranged along the axis of end piece 4 and rod 7.
  • the mechanical arrangement also comprises a wheel 6 fixed on the rod 7 to mesh with another wheel 11 whose axis is perpendicular to the axis of the wheel 6.
  • a blocking element 9 is also provided to block the action of the mechanical arrangement.
  • the blocking element 9 can be an element in the form of a pawl or notch in order to be placed between two teeth of the other wheel 11 to prevent it from rotating, as well as the wheel 6.
  • the blocking element 9 is placed in the blocking position in particular after the adjustment of the vibration frequency of the gong.
  • the picture 3 represents a third embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • This third embodiment is a variant of the principle described in relation to the figures 2a and 2b .
  • the mechanical arrangement also comprises at least a first element 4 intended to act on a part of the gong to perform a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the stamp struck.
  • the mechanical stress in this second embodiment is a torsion of at least a part of the gong 3 in particular of the second end of the gong 3.
  • This second end of the gong is of non-circular shape with at least one flat on a surface.
  • the extrusion 3' is inserted into the opening 4' of the element 4, which can be a torsion cogwheel.
  • the torsion toothed wheel 4 is driven in rotation by a toothed wheel 6 meshing with the torsion toothed wheel.
  • This toothed wheel 6 is fixed on the winding stem 7, which ends towards the outside of the watch case by a crown 8 for manual actuation.
  • the axis of the toothed wheel 6 is the same as the axis of the rod 7.
  • a locking element 9 is further provided to block the toothed wheel 6 or possibly the torsion toothed wheel once the adjustment of frequency is over.
  • the shape of the stamp can be chosen, for example of circular or rectangular cross-section.
  • the thickness of the stamp can be less than or equal to 1 mm and the length can be between 1 cm and 10 cm.
  • the material of the stamp can be chosen from steel or a copper alloy or from gold or metallic glass, that is to say an amorphous metal or metallic alloy. This metallic glass may for example be based on zirconium, gold, platinum or gold with palladium, platinum and silver or any other metal capable of solidifying in amorphous form.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Claims (14)

  1. Vorrichtung (1) zur Einstellung der Schwingungsfrequenz mindestens einer Tonfeder (3) eines Schlagwerkmechanismus einer Uhr, wobei der Schlagwerkmechanismus mindestens eine Tonfeder (3), die über ein erstes Ende an einem Tonfederträger (2) montiert ist, und mindestens einen Hammer zum Anschlagen der Tonfeder (3) zu vorbestimmten Zeitpunkten umfasst,
    und die Vorrichtung eine mechanische Anordnung mit einem ersten Element (4) umfasst, das dazu bestimmt ist, auf einen Teil der Tonfeder einzuwirken, um eine mechanische Beanspruchung der Tonfeder zu bewirken, um eine Schwingungseigenfrequenz der angeschlagenen Tonfeder zu regulieren, dadurch gekennzeichnet, dass das erste Element (4) ein Kontaktelement ist, das mit einem zweiten Ende der Tonfeder in Eingriff steht.
  2. Vorrichtung (1) zur Einstellung der Schwingungsfrequenz mindestens einer Tonfeder (3) eines Schlagwerkmechanismus einer Uhr, wobei der Schlagwerkmechanismus mindestens eine Tonfeder (3), die über ein erstes Ende an einem Tonfederträger (2) montiert ist, und mindestens einen Hammer zum Anschlagen der Tonfeder (3) zu vorbestimmten Zeitpunkten umfasst,
    dadurch gekennzeichnet, dass die Vorrichtung eine mechanische Anordnung umfasst, die dazu vorgesehen ist, eine Verdrehung der Tonfeder mit einem ersten Element (4), das mit einem Teil der Tonfeder mit komplementärer Form in Eingriff steht, zu bewirken, um eine Schwingungseigenfrequenz der angeschlagenen Tonfeder zu regulieren.
  3. Vorrichtung (1) nach Anspruch 2,
    dadurch gekennzeichnet, dass die mechanische Anordnung dazu vorgesehen ist, einen Zug oder einen Druck der Tonfeder sowie eine Verdrehung der Tonfeder mit dem ersten Element (4) zu bewirken.
  4. Vorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die mechanische Anordnung dazu vorgesehen ist, einen Zug oder einen Druck der Tonfeder über das erste Element (4), das an einem Teil der Tonfeder befestigt ist, zu bewirken, um ihre Schwingungsfrequenz zu regulieren.
  5. Vorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass das zweite Ende der Tonfeder einen stranggepressten Abschnitt (3') mit einer Form aufweist, die zu einem Aufnahmeraum (4') des ersten Elements (4), der mit dem zweiten Ende der Tonfeder (3) in Eingriff gelangt, komplementär ist, um eine Verdrehung der Tonfeder durch Drehen des ersten Elements (4) in der mechanischen Anordnung zu bewirken.
  6. Vorrichtung (1) nach Anspruch 5, dadurch gekennzeichnet, dass das erste Element (4) ein Ansatzstück ist, das an einem ersten Ende eine Öffnung (4') mit einer zu dem stranggepressten Abschnitt (3') der Tonfeder (3) komplementären Form besitzt, wobei der stranggepresste Abschnitt dazu bestimmt ist, in die Öffnung (4') des Ansatzes eingesetzt zu werden, dass ein zweites Ende des Ansatzstücks mit einem Stift (7) verbunden ist, der in einer Krone (8) endet, die zur manuellen Betätigung außerhalb eines Gehäuses der Uhr positionierbar ist, um eine Verdrehung der Tonfeder zu bewirken, um deren Schwingungsfrequenz zu regulieren.
  7. Vorrichtung (1) nach Anspruch 6, dadurch gekennzeichnet, dass an dem Stift (7) ein Zahnrad (6) angeordnet ist, um mit einem anderen Zahnrad (11) mit einer zu der Drehachse des Stifts (7) und des Zahnrades (6) senkrechten Drehachse zu kämmen.
  8. Vorrichtung (1) nach Anspruch 7, dadurch gekennzeichnet, dass die mechanische Anordnung ein Blockierelement (9) umfasst, um das andere Zahnrad (11) am Ende der Einstellung der Frequenz der Tonfeder zu blockieren.
  9. Vorrichtung (1) nach Anspruch 5, dadurch gekennzeichnet, dass das erste Element (4) ein Verdrehungszahnrad ist, das eine axiale Öffnung mit einer zu dem stranggepressten Abschnitt (3') der Tonfeder (3) komplementären Form aufweist, wobei der stranggepresste Abschnitt dazu bestimmt ist, in die Öffnung (4') des Verdrehungszahnrades eingesetzt zu werden, um eine Verdrehung der Tonfeder bei der Drehung des Verdrehungszahnrades zu bewirken.
  10. Vorrichtung (1) nach Anspruch 9, dadurch gekennzeichnet, dass das Verdrehungszahnrad so angeordnet ist, dass es durch ein Zahnrad (6), das mit dem Verdrehungszahnrad kämmt, rotatorisch angetrieben wird, und dass das Zahnrad (6) an einem Stift (7) befestigt ist, der zur Außenseite des Uhrengehäuses hin durch eine manuell betätigbare Krone (8) abgeschlossen ist.
  11. Vorrichtung (1) nach Anspruch 10, dadurch gekennzeichnet, dass die mechanische Anordnung ein Blockierelement (9) umfasst, um das Zahnrad (6) oder das Verdrehungszahnrad am Ende der Einstellung der Frequenz der Tonfeder zu blockieren.
  12. Vorrichtung (1) nach Anspruch 4, dadurch gekennzeichnet, dass das erste Element (4) dazu vorgesehen ist, an einem Teil der Tonfeder angeordnet zu werden, dass das erste Element ein Ring (4) oder eine Klemme ist, der bzw. die an einer Position dieser Tonfeder, vorzugsweise an einem zweiten Ende der Tonfeder, befestigt ist, und dass das erste Element mit einem geradlinigen Betätigungsorgan (5) verbunden ist, das durch ein Rad (6) angetrieben wird.
  13. Vorrichtung (1) nach Anspruch 12, dadurch gekennzeichnet, dass das erste Element ein Ring (4) ist, der an einer Position dieser Tonfeder durch eine Schraube (4a) befestigt ist, und dass das Rad (6) ein Zahnrad (6a) ist, das mit einer Zahnstange (5a) des Betätigungsorgans kämmt, um einen Zug oder einen Druck der Tonfeder (3) für die Einstellung ihrer Schwingungsfrequenz zu bewirken.
  14. Vorrichtung (1) nach Anspruch 13, dadurch gekennzeichnet, dass die mechanische Anordnung ferner eine Krone (8) umfasst, die mit einem Stift (7) verbunden ist, der durch einen Mittelteil eines Gehäuses der Uhr verläuft, wobei der Stift in einer Einstellungsposition der Krone axial mit dem Rad (6) verbunden ist, was die Betätigung der Einstellung der Schwingungsfrequenz der Tonfeder ermöglicht.
EP18159935.8A 2018-03-05 2018-03-05 Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus Active EP3537228B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18159935.8A EP3537228B1 (de) 2018-03-05 2018-03-05 Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus
CH000263/2018A CH714716B1 (fr) 2018-03-05 2018-03-05 Mécanisme de sonnerie comprenant un dispositif de réglage de fréquence de vibration d'un timbre.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18159935.8A EP3537228B1 (de) 2018-03-05 2018-03-05 Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus

Publications (2)

Publication Number Publication Date
EP3537228A1 EP3537228A1 (de) 2019-09-11
EP3537228B1 true EP3537228B1 (de) 2022-02-16

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EP18159935.8A Active EP3537228B1 (de) 2018-03-05 2018-03-05 Vorrichtung zur regulierung der schwingungsfrequenz der klangfarbe eines schlagwerkmechanismus

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EP (1) EP3537228B1 (de)
CH (1) CH714716B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202200002861A1 (it) * 2022-02-16 2023-08-16 Milano Politecnico Timbro per un dispositivo di suoneria di un orologio

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707078A1 (fr) * 2012-10-15 2014-04-15 Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie Timbre pour dispositif de sonnerie d'une pièce d'horlogerie.
CH708095B1 (fr) 2013-05-28 2021-05-14 Montres Breguet Sa Mécanisme de sonnerie muni de moyens de sélection de mode vibratoire d'un timbre.
CH712161A2 (fr) 2016-02-26 2017-08-31 Montres Breguet Sa Timbre, montre à mécanisme de sonnerie le comprenant et procédé de fabrication du timbre.

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Publication number Publication date
CH714716B1 (fr) 2024-05-15
EP3537228A1 (de) 2019-09-11
CH714716A2 (fr) 2019-09-13

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