EP3492997B1 - Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst - Google Patents

Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst Download PDF

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Publication number
EP3492997B1
EP3492997B1 EP17204727.6A EP17204727A EP3492997B1 EP 3492997 B1 EP3492997 B1 EP 3492997B1 EP 17204727 A EP17204727 A EP 17204727A EP 3492997 B1 EP3492997 B1 EP 3492997B1
Authority
EP
European Patent Office
Prior art keywords
cannon
pinion
watch movement
wheel
mechanical watch
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
EP17204727.6A
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English (en)
French (fr)
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EP3492997A1 (de
Inventor
Jean-Philippe Rochat
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 EP17204727.6A priority Critical patent/EP3492997B1/de
Priority to US16/185,515 priority patent/US11092931B2/en
Priority to JP2018219966A priority patent/JP6697054B2/ja
Priority to CN201811450974.4A priority patent/CN109856947B/zh
Publication of EP3492997A1 publication Critical patent/EP3492997A1/de
Application granted granted Critical
Publication of EP3492997B1 publication Critical patent/EP3492997B1/de
Active 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears
    • 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
    • G04B21/022—Regular striking mechanisms giving the full hour, half hour or quarter hour with saw mechanism
    • 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
    • G04B23/023—Driving, e.g. by springs or common drive with the clockwork; gears; escapements
    • 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
    • G04B21/12—Reiterating watches or clocks

Definitions

  • the invention relates to a mechanical clockwork movement comprising a striking mechanism and more particularly such a movement comprising a device making it possible to limit the angular play in the timer train.
  • the invention also relates to a timepiece, in particular a striking wristwatch comprising such a movement.
  • the minute snail that is to say the cam carrying the notches to adjust the minute strike which cooperates with the sensor of the minute piece
  • the minute snail is directly fixed on the roadway which carries the minute hand at its end.
  • Such an arrangement guarantees a mechanism with no offset between the position of the minute hand opposite the dial minute scale and the number of strikes for the minutes.
  • a secondary roadway connected to the main roadway is provided by means of a return or advantageously of the timer from the movement.
  • the correspondence between the position of the minute snail carried by the main roadway and the position of the minute hand carried by the secondary roadway, opposite the minute scale is dependent on the sum of the angular clearances in the timer cog.
  • this total angular play between the secondary roadway and the main roadway carrying minutes is typically of the order of 3 to 8 °.
  • the document CH 604 237 describes a repeating wristwatch.
  • the main object of the invention is therefore to provide a clockwork movement with a striking mechanism, in particular with a minute repeater, aimed at overcoming the drawbacks of the prior art and in particular at providing such a movement aimed at reducing or even eliminating the angular play in the cog extending between the main carriageway and the secondary carriageway in order to ensure a perfect match between the position of the minute hand opposite the dial minute scale and the number of strikes of the minutes struck.
  • Another object of the invention is to provide such a clockwork movement which is compact, economical and simple to implement.
  • the invention also aims to provide a device adjustable by the watchmaker, adjustment which makes it possible to compensate for the tolerance faults of dimensions of the components often important in these very complicated mechanisms and manufactured in small series.
  • the invention relates to a mechanical clockwork movement comprising a striking mechanism, said striking mechanism comprising at least a first carriageway provided with a first carriageway pinion and on which is coaxially mounted at least one limaquaint intended for cooperate with a feeler member of the striking mechanism, said first carriageway being arranged to be driven at least indirectly by the movement finishing gear train, said movement being characterized in that it further comprises a second carriageway provided with a pinion of second carriageway, in that the second carriageway carries the minute hand, in that the pinion of the second carriageway is, on the one hand, in engagement with the finishing gear, and on the other hand, with a timer, in that the timer wheel is engaged with the gear of the first carriageway, in that a timer pinion is in mesh with an hour wheel coaxial with the second carriageway, and in that the The timer wheel is mounted on a rocker arranged to pivot about a fixed point and an angular position of which can be adjusted by pivoting so as to allow adjustment of the position of the time
  • the watchmaker by acting on the angular position of the rocker carrying the timer wheel, the watchmaker has a simple device for adjusting the angular play in the cog in the cog extending between the first carriageway and the second roadway. In doing so, the watchmaker can therefore easily adjust the distance between the axis of the timing wheel and the respective axes of the first and second carriageways and thus adjust the depth of penetration of the teeth of the timing wheel into the teeth of the respective pinions. of the first and second carriageways, thereby adjusting the angular play in the cog and therefore ensuring a perfect match between the position of the minute hand facing the minute scale of the dial and the position of the minute string during of the information taken by the probe of the minute piece and therefore the number of strikes.
  • the Clockwork movement 1 comprises at least one striking mechanism 2 of which only the elements necessary for understanding the invention have been shown.
  • the movement 1 which is partially shown in perspective conventionally comprises a plate P, a barrel meshing with a finishing gear in mesh with an escapement (not shown).
  • the finishing gear is also linked to a timer gear M which drives the hour 3 and minute 4 hands which move in the center of a dial 5 surmounting the movement 1.
  • the movement is circular and the dial is not centered on the movement.
  • the timer train conventionally comprises a timer mobile 6 formed of a timer wheel 6a and a timer pinion 6b.
  • the striking mechanism 2 comprises a first carriageway 7 comprising an axis 7a carrying at an upper end a first carriageway pinion 8 in engagement with a timer wheel 6a.
  • the axis 7a also carries coaxially and in a successively superimposed manner a limaçon of quarters 9, a surprise 10 and a snail of the minutes 11 which cooperate respectively with feelers (not shown) of the striking mechanism 2.
  • the axis 7a may include only one snail.
  • the axis 7a of the first carriageway also carries in its middle part a pinion 12 intended to come into engagement with a conventional time-setting mechanism, not shown.
  • the pinion 12 could be omitted and the time-setting mechanism could engage directly with the timer M, for example with the timer wheel 6a.
  • the timer pinion 6b is engaged with an hour wheel 13 whose barrel 13a carries the hour hand 3.
  • the timer wheel 6a is also engaged with a pinion 14a of a second carriageway 4 whose body 14b s' extends coaxially through the barrel 13a and carries the minute hand 4.
  • the pinion 14a of the second carriageway is furthermore engaged with the finishing gear which thus ensures the driving of the timer M which thus indirectly drives the first carriageway 7.
  • the timer mobile 6 is pivotally mounted on a rocker 15 about an axis 16 driven into an opening made, in the example illustrated in a middle part of the rocker 15.
  • the rocker 15 which has a generally arched shape, is fixed to a first 15a of its ends by means of a screw 17 directly screwed into a bridge Po extending above the plate P.
  • the rocker present in the zone of the first end 15a a neck defined by a constriction forming a flexible part which can be elastically bent and defining a flexion axis extending perpendicular to the plane of the lever 15.
  • the lever 15 comprises at its second end 15b opposite the fixed end 15a a housing 15c in which moves a eccentric member 18 which comprises a head 18a extended by a cylindrical body 18b extended in turn by a stud 18c eccentric with respect to the cylindrical body 18b.
  • the head 18a is provided on its upper face with a slot 18d for receiving the end of an actuating tool.
  • the body 18b is driven into a corresponding opening of the rocker 15 and the stud 18c extends in an oblong opening 18e provided in the bridge Po.
  • the rocker can therefore move in rotation around its bending axis located at the most point. narrow narrowing in a plane substantially parallel to the plane of movement 1 along arrow F when the eccentric member 18 is rotated.
  • the angular position of the rocker 15 can thus be adjusted by actuating the eccentric member 18 in rotation, for example by means of a screwdriver so as to allow simultaneous adjustment of the position of the timer wheel 6a relative to the pinion 8. of the first carriageway 7 and to the pinion 14a of the second carriageway 14.
  • the adjustment position is maintained by the friction of the body 18b in the opening of the lever 15. It should also be noted that the elasticity of the neck allows after adjustment the position of the lever to recall the latter and thereby reduce the play in the cog.
  • the rocker 15 is arranged relative to the pinion 8 of the first carriageway 7 and relative to the pinion 14a of the second carriageway 14 in such a way that an angular displacement of the rocker 15 around the bending axis causes a circular displacement of the rocker 15 which causes the teeth of the timing wheel 6a to penetrate to an identical depth in the teeth of the pinion 8 of the first carriageway 7 and in the teeth of the pinion 14a of the second carriageway 14.
  • a clockwork gear typically has, at the nominal center distance, a backlash of the order of 0.16 x the angular pitch of a toothing.
  • the angular play is cumulative, which leads to a total angular play of the order of 2x 2.68 °, ie 5.36 °.
  • the movement of the invention and in particular the arrangement of the timer mobile 6 on the rocker 17, the position of which is angularly adjustable around the bending axis makes it possible to simultaneously vary the respective nominal centers between the timer wheel. and the first 7 and second 14 carriageways and in particular to reduce these center distances in order to optimize the angular play between the teeth and allow a gear with an angular play ensuring, on the one hand, a perfect correspondence between the position of the minutes and the minute hand opposite the dial and, on the other hand, minimal wear of the teeth involved.
  • timing wheel 6a can be seen according to two positions for adjusting the penetration of its teeth into the teeth of the pinions 8 and 14a of the first and second carriageways 7 and 14, respectively.
  • the nominal center distance between the timing wheel 6a and the pinions 8 and 14a of the first 7 and second carriageways 14 has been reduced to a lesser extent compared to the figures 3 and 3a in such a way that the angular play between the teeth of this wheel and these pinions is between 2 ° and 4 °. This ensures minimal wear of the teeth and guarantees a perfect match between the minute position and the minute hand opposite the dial.
  • the toothing of the timer wheel which has the greatest number of teeth, can have teeth 6c which each comprise driving flanks 6d having a rectilinear segment forming an angle at the top of between 2 and 10 ° in order to facilitate the penetration of this toothing into that of the pinion wheels with which it meshes when the nominal center distance is reduced by the pivoting of the rocker 15 when adjusting the position of the timer mobile 6.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Claims (10)

  1. Mechanisches Uhrwerk, das einen Schlagwerkmechanismus umfasst, wobei der Schlagwerkmechanismus mindestens ein erstes Minutenrohr (7) umfasst, das mit einem Trieb (8) des ersten Minutenrohrs ausgestattet ist und an dem mindestens eine Schnecke (11) koaxial angebracht ist, die dazu bestimmt ist, mit einem Tastorgan des Schlagwerkmechanismus zusammenzuwirken, wobei das erste Minutenrohr (7) so eingerichtet ist, dass es mindestens indirekt vom Finissage-Räderwerk des Werks angetrieben wird, wobei das mechanische Uhrwerk weiter ein zweites Minutenrohr (14) umfasst, das mit einem Trieb (14a) des zweiten Minutenrohrs ausgestattet ist, wobei das zweite Minutenrohr (14) den Minutenzeiger (4) trägt, wobei das mechanische Uhrwerk einen Zeigerwerktrieb (6b) umfasst, der mit einem zum zweiten Minutenrohr (14) koaxialen Stundenrad (13) in Eingriff steht, dadurch gekennzeichnet, dass der Trieb (8) des ersten Minutenrohrs einerseits mit dem Finissage-Räderwerk, und andererseits mit einem Zeigerwerkrad (6a) in Eingriff steht,
    und dadurch, dass das Zeigerwerkrad (6a) an einer Wippe (15) angebracht ist, die so eingerichtet ist, dass sie um einen Fixpunkt dreht und von der eine Winkellage durch Drehen angepasst werden kann, um eine Regulierung der Lage des Zeigerwerkrads (6a) im Verhältnis zum Trieb (8) des ersten Minutenrohrs und zum Trieb (14a) des zweiten Minutenrohrs zu ermöglichen.
  2. Mechanisches Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass die Passung der Winkellage der Wippe (15) mittels eines Exzenterorgans (18) ausgeführt wird, das sich in einer Lagerung (15c) bewegt, die an einem dem Fixpunkt der Wippe (15) gegenüberliegenden Ende (15b) vorgesehen ist.
  3. Mechanisches Uhrwerk nach Anspruch 2, dadurch gekennzeichnet, dass die Wippe (15) durch Reibung zwischen dem Exzenter (18) und der Lagerung (15c) der Wippe (15) lagemäßig in ihrer angepassten Winkellage arretiert wird.
  4. Mechanisches Uhrwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Zeigerwerkrad (16a) frei um eine Achse (16) drehbar angebracht ist, die sich senkrecht zur Ebene des Werks erstreckt, und dadurch, dass sich Wippe (15) in einer Ebene parallel zur Ebene des Uhrwerks erstreckt.
  5. Mechanisches Uhrwerk nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Wippe (15) im Verhältnis zum Trieb (8) des ersten Minutenrohrs und im Verhältnis zum Trieb (14a) des zweiten Minutenrohrs so eingerichtet ist, dass eine Winkelbewegung der Wippe zu einem Eindringen der Zähne des Zeigerwerkrads auf eine identische Tiefe in die Zahnung des Triebs des ersten Minutenrohrs und in die Zahnung des Triebs des zweiten Minutenrohrs führt.
  6. Mechanisches Uhrwerk nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jeder der Zähne des Zeigerwerkrads (6a) Mitnehmerflanken (6d) umfassen, die ein geradliniges Segment aufweisen, das an der Spitze einen Winkel (α) im Bereich zwischen 2 und 10° bildet.
  7. Mechanisches Uhrwerk nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das erste Minutenrohr (7) eine Minutenschnecke (11), einen Überfall (10) und eine Viertelstundenschnecke (9) umfasst.
  8. Mechanisches Uhrwerk nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Zeigerwerkrad (6) fest mit einem Zeigerwerktrieb verbunden ist, der koaxial zu demselben ist.
  9. Mechanisches Uhrwerk nach Anspruch 8, dadurch gekennzeichnet, dass das Stundenrad (13) zum zweiten Minutenrohr (14) koaxial ist, und dadurch, dass das Stundenrad (13) eine Kanone (13a) aufweist, die das zweite Minutenrohr (14) umgibt und von dem ein Ende einen Stundenzeiger (13) trägt.
  10. Uhr, insbesondere eine Armbanduhr, die ein Werk nach einem der Ansprüche 1 bis 9 umfasst.
EP17204727.6A 2017-11-30 2017-11-30 Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst Active EP3492997B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17204727.6A EP3492997B1 (de) 2017-11-30 2017-11-30 Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst
US16/185,515 US11092931B2 (en) 2017-11-30 2018-11-09 Mechanical watch movement comprising a striking mechanism
JP2018219966A JP6697054B2 (ja) 2017-11-30 2018-11-26 打撃機構を備えた機械式時計ムーブメント
CN201811450974.4A CN109856947B (zh) 2017-11-30 2018-11-30 包括报时机构的机械表机芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17204727.6A EP3492997B1 (de) 2017-11-30 2017-11-30 Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst

Publications (2)

Publication Number Publication Date
EP3492997A1 EP3492997A1 (de) 2019-06-05
EP3492997B1 true EP3492997B1 (de) 2020-08-19

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EP17204727.6A Active EP3492997B1 (de) 2017-11-30 2017-11-30 Mechanisches uhrwerk, das einen schlagwerkmechanismus umfasst

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US (1) US11092931B2 (de)
EP (1) EP3492997B1 (de)
JP (1) JP6697054B2 (de)
CN (1) CN109856947B (de)

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CH720028A1 (fr) * 2022-09-12 2024-03-28 Patek Philippe Sa Geneve Mouvement horloger comprenant un dispositif de reglage de la position d'un organe d'affichage et procede de reglage

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CN111906515A (zh) * 2020-09-01 2020-11-10 福建德丰智能装备有限公司 一种转盘式分轮装配机
FR3138950A1 (fr) * 2022-08-18 2024-02-23 Bulgari Horlogerie Sa Mécanisme pour pièce d’horlogerie à sonnerie.

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CH703615B1 (fr) * 2010-08-18 2014-12-15 Patek Philippe Sa Geneve Pièce d'horlogerie munie d'un mécanisme de répétition ou de sonnerie et d'un mécanisme d'alarme.
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CH720028A1 (fr) * 2022-09-12 2024-03-28 Patek Philippe Sa Geneve Mouvement horloger comprenant un dispositif de reglage de la position d'un organe d'affichage et procede de reglage

Also Published As

Publication number Publication date
US11092931B2 (en) 2021-08-17
CN109856947A (zh) 2019-06-07
JP6697054B2 (ja) 2020-05-20
US20190163135A1 (en) 2019-05-30
JP2019101033A (ja) 2019-06-24
EP3492997A1 (de) 2019-06-05
CN109856947B (zh) 2021-02-26

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