EP1041459B1 - Hemmung für Zeitmesser - Google Patents

Hemmung für Zeitmesser Download PDF

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Publication number
EP1041459B1
EP1041459B1 EP99106602A EP99106602A EP1041459B1 EP 1041459 B1 EP1041459 B1 EP 1041459B1 EP 99106602 A EP99106602 A EP 99106602A EP 99106602 A EP99106602 A EP 99106602A EP 1041459 B1 EP1041459 B1 EP 1041459B1
Authority
EP
European Patent Office
Prior art keywords
teeth
wheels
wheel
roller
rocking 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.)
Expired - Lifetime
Application number
EP99106602A
Other languages
English (en)
French (fr)
Other versions
EP1041459A1 (de
Inventor
Ludwig Oechslin
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.)
Ulysse Nardin SA
Original Assignee
Ulysse Nardin 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 Ulysse Nardin SA filed Critical Ulysse Nardin SA
Priority to EP99106602A priority Critical patent/EP1041459B1/de
Priority to DE69902990T priority patent/DE69902990T2/de
Priority to US09/531,170 priority patent/US6301981B1/en
Priority to JP2000098062A priority patent/JP2000304873A/ja
Publication of EP1041459A1 publication Critical patent/EP1041459A1/de
Application granted granted Critical
Publication of EP1041459B1 publication Critical patent/EP1041459B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00Escapements
    • G04B15/06Free escapements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1502Escapement
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/1987Rotary bodies
    • Y10T74/19874Mutilated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/1987Rotary bodies
    • Y10T74/19884Irregular teeth and bodies

Definitions

  • the present invention relates to an exhaust disposed between a cog and a balance-spring of a timepiece.
  • the Swiss lever escapement used for almost all watches has an escape wheel which cooperates with two pallets anchor whose movements of the fork are limited by pins limitation.
  • the fork cooperates with an ankle carried by a tray secured to the pendulum axis.
  • the system delivers two pulses per pendulum swing and is self-starting.
  • a call is made safety device called pull which keeps the fork against the stop limit while the pendulum performs its free swing arc.
  • the draw results in an inclination of the pallet's rest plane, which makes reverse the escape wheel when disengaging. This decline presents the disadvantage of braking the pendulum and therefore consuming energy.
  • the pendulum receives its impulses through from the anchor and not directly from the escape wheel.
  • Expensive and delicate detent escapement is mainly used in chronometry. It is composed of a wheel with pointed teeth which rest on a stone called rest. This stone is carried by a spring called trigger whose extension is within the scope of a pallet of clearance carried by a small plate secured to the balance.
  • the palette operates the wheel clearance at each swing of the balance wheel.
  • the tooth of the wheel leaves the rest and another tooth of the wheel, acting on a pallet impulse carried by a large plate, coaxial and integral with the small plate, gives an impulse to the pendulum.
  • This system has the advantage of being direct impulse and to show no recoil when disengaging.
  • this system has the disadvantage of being subject to overturning when the balance traverses the free arc and if a shock is applied to the timepiece during this period. The watch can then stop.
  • this escapement provides a single impulse to the balance wheel during an oscillation, which somewhat decreases the efficiency of the system.
  • this system is not self-starting which also has a drawback.
  • the cylinder exhaust has a cooperating escape wheel with a cylinder on which the balance spring is mounted.
  • the cylinder is formed by a small polished steel tube provided with a notch in which can take turns entering the teeth of the wheel.
  • the two ends of the cylinder are closed by steel buffers carrying the cylinder pivot.
  • the present invention proposes a new exhaust, said to impulse wheels.
  • This new exhaust is characterized by the fact that it has first and second wheels pulse meshing with each other, one of these wheels being driven by the cog, and the first and second plates attached to a common shaft to which the balance spring, the first and second wheels and the first tray being provided with means allowing said first tray to receive direct pulses delivered alternately by the first and second wheels for maintaining the pendulum oscillations, said second tray being provided with means for driving a locking rocker arranged to alternately lock said first and second wheels.
  • FIGs 1 to 4 are plan views of four successive phases of the exhaust according to the invention.
  • the exhaust 10 is arranged, as this is known, between a cog and a balance-spring of a timepiece.
  • the gear train or finishing is the set of wheels and pinions which, from a barrel, transmits the driving force to an escape wheel.
  • the cog is represented by its last wheel 8, associated with pinion 36.
  • the wheel 8 drives a first escape or impulse wheel 6 through the pinion 35 which is integral to it.
  • the first wheel 6 meshes with a second wheel 7 exhaust or pulse. It will be noted here that the wheel 8 could drive the second wheel 7 in place of the first wheel 6.
  • Figures 1 to 4 also show first and second plates 9 and 11 secured to a shaft common 1 to which is attached a balance spring (not shown).
  • the first and second wheels 6 and 7 as well as the first plate 9 are provided with means allowing the first plate 9 to receive direct pulses delivered alternately by the first and second wheels 6 and 7 in order to maintain the pendulum oscillations.
  • the second plate 11 is provided with means to drive a blocking lever 12 arranged to block alternately said first and second wheels 6 and 7.
  • Figures 1 to 4 show that the first and second wheels impulse 6 and 7 have identical teeth and have the same diameter.
  • This set of teeth is made of a limited number (here five) of long teeth referenced 13 for wheel 6 and 14 for wheel 7.
  • the long teeth 13 of the wheel 6 are each separated by a plurality of short teeth 15 (here four).
  • the long teeth 14 of the wheel 7 are each separated by a plurality of short teeth 16 (here four).
  • the first plateau 9, integral with axis 1, to which the inner end of the hairspring is attached (not shown), has first and second ears 17 and 18.
  • the first ear 17 is arranged to receive an impulse delivered by a tooth long 13a of the first wheel 6 to drive the pendulum (not shown), supported by axis 1, in a first direction A as can be deduced from Figure 1.
  • the second ear 18 is arranged to receive a impulse delivered by a long tooth 14a of the second wheel 7 for drive the pendulum in a second direction B, opposite to the first direction A, as shown in Figure 3.
  • Figures 1 to 4 still show that the second plate 11, integral with the axis 1 comprises a disc 19 from which emerges a finger 20. This finger 20 is likely to cause the rocking of blocking 12 (see FIG.
  • FIGS 1 to 4 show that this rocker 12 is made of a pivoting disc 21 on an axis 2. In this disc 21 are cut two teeth 22 and 23 between which can penetrate the finger 20 of the second plate 11 to rotate the rocker.
  • the disc 21 of the rocker 12 carries an eccentric or lug 33 against which the long teeth 13 and 14 alternately abut first and second wheels 6 and 7, as is apparent in Figures 4 and 2 respectively.
  • the spring of the barrel is completely relaxed.
  • the mechanism is at rest.
  • the long tooth 13a of the wheel 6 is released from the lug 33.
  • the finger 20 of the second plate 11 is engaged between the teeth 22 and 23 of the disc 21 forming the rocker 12.
  • the ear 17 of the first plate 9 is in position to receive the tooth 13a of the first wheel 6. From this situation, and if we go up the barrel spring, the first wheel 6 starts to rotate in the direction of the arrow M which drives the second wheel 7 in the direction of arrow N.
  • the long tooth 13a starts to rotate in the direction of arrow M, meets the ear 17 and rotates the first and second plates 9 and 11 in the direction of the arrow A which gives a direct impulse to the balance and initiates the first half-wave of said pendulum.
  • the second plate 11 continues its course in the direction of arrow B and causes the rocker 12 clockwise so that its lug 33 is then on the way to the long tooth 13b of the first wheel 6.
  • the wheel 6 locks, which also causes the wheel locking 7. The unlocking will take place at the next alternation of the pendulum and the cycle can start again.
  • Figures 1 to 4 show that each of the first and second wheels impulse 6 and 7 has twenty-five teeth, including five long teeth 13 and 14, four short teeth 15 and 16 being interposed between two long teeth.
  • this pendulum will make 4 oscillations per second.
  • FIG. 8 is an enlargement of zone VIII shown in Figure 4 and emphasizes how the long tooth 13b rests on the lug 33 of the rocker 12. This FIG. 8 clearly shows that the face 34 of the lug 33, facing against which the long teeth 13 and 14 alternately abut, is formed in an arc, the radius R of this arc passing through the center of pivot 2 of the rocker 12.
  • a first space 30 is located between the two teeth 22 and 23. In this space 30 can penetrate the finger 20 of the second plate 11 to rotate the rocker.
  • Second and third spaces 31 and 32 are located on either side other of the pair of teeth 22 and 23, spaces in which can penetrate alternately, and partially, the disc 19 of the second plate 11, this in order to immobilize the scale after its pivoting. So like it can be seen particularly well in FIG. 2, the disc 19 of the second plate 11 partially penetrates into the space 32 formed after tooth 23 of the rocker. This device is important because in the situation where the tooth 14a is blocked by the rocker lug 33, this rocker should not be able to rotate accidentally, for example under the effect of a shock applied to the part watchmaking.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Micromachines (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Claims (6)

  1. Hemmung (10), die zwischen einem Uhrwerk (8) und einer spiralförmigen Unruh eines Zeitmessers angeordnet ist, dadurch gekennzeichnet, daß sie erste (6) und zweite (7) Antriebsräder, die gegenseitig kämmen und wovon eines (6) durch das Uhrwerk angetrieben wird, sowie erste (9) und zweite (11) Platten, die mit einer gemeinsamen Welle (1) verbunden sind, an der die spiralförmige Unruh befestigt ist, umfaßt, wobei die ersten (6) und zweiten (7) Räder sowie die erste Platte (9) mit Mitteln (13, 14, 17, 18) versehen sind, die der ersten Platte (9) ermöglichen, direkte Impulse zu empfangen, die abwechselnd von den ersten (6) bzw. zweiten (7) Rädern geliefert werden, um die Schwingungen der Unruh aufrechtzuerhalten, wobei die zweite Platte (11) mit Mitteln (19, 20) versehen ist, um eine Hemmungswippe (12) anzutreiben, die abwechselnd die ersten (6) bzw. zweiten (7) Räder hemmen kann.
  2. Hemmung nach Anspruch 1, dadurch gekennzeichnet, daß die ersten (6) und zweiten (7) Antriebsräder eine völlig gleiche Zahnung besitzen, die aus einer begrenzten Anzahl langer Zähne (13, 14), die jeweils durch mehrere kurze Zähne (15, 16) getrennt sind, gebildet ist, daß die erste Platte (9) eine erste (17) und eine zweite (18) Öse umfaßt, wovon die erste (17) so beschaffen ist, daß sie einen von einem langen Zahn (13) des ersten Rades (6) gelieferten Impuls empfängt, um die Unruh in einer ersten Richtung (A) anzutreiben, und die zweite (18) so beschaffen ist, daß sie einen von einem langen Zahn (14) des zweiten Rades (7) gelieferten Impuls empfängt, um die Unruh in einer zur ersten Richtung entgegengesetzten zweiten Richtung (B) anzutreiben, und daß die zweite Platte (11) eine Scheibe (19) umfaßt, wovon ein Zapfen (20) vorsteht, der die Hemmungswippe (12) abwechselnd in einer ersten Richtung (E) antreiben kann, um das erste Rad (6) durch einen (13) seiner langen Zähne zu hemmen, und dann in einer zur ersten Richtung entgegengesetzten zweiten Richtung (F) antreiben kann, um das zweite Rad (7) durch einen (14) seiner langen Zähne zu hemmen.
  3. Hemmung nach Anspruch 2, dadurch gekennzeichnet, daß die Hemmungswippe (12) aus einer Scheibe (21) hergestellt ist, die um ihre Achse (2) schwenkt, wobei in der Scheibe zwei Zähne (22, 23) ausgeschnitten sind, zwischen die der Zapfen (20) der zweiten Platte (11) eindringen kann, um die Wippe (12) zu schwenken, wobei diese Scheibe (21) einen Ansatz (33) trägt, an dem die langen Zähne (13, 14) des ersten Rades (6) bzw. des zweiten Rades (7) abwechselnd anschlagen können.
  4. Hemmung nach Anspruch 2, dadurch gekennzeichnet, daß jedes der ersten (6) und zweiten (7) Antriebsräder fünfundzwanzig Zähne trägt, worunter sich fünf lange Zähne (13, 14) befinden, wobei zwischen zwei lange Zähne jeweils vier kurze Zähne (15, 16) eingefügt sind.
  5. Hemmung nach Anspruch 3, dadurch gekennzeichnet, daß die Fläche (34) des Ansatzes (33), an der die langen Zähne (13, 14) abwechselnd anschlagen, als Kreisbogen ausgebildet ist, wobei der Radius (R) dieses Bogens durch das Schwenkzentrum (2) der Wippe (12) verläuft.
  6. Hemmung nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Zähne (22, 23), die in der die Wippe (12) bildenden Scheibe (21) ausgeschnitten sind, drei Räume definieren, einen ersten Raum (30), der sich zwischen den beiden Zähnen (22, 23) befindet und in den der Zapfen (20) der zweiten Platte (11) eindringen kann, um die Wippe (12) zu schwenken, und einen zweiten (31) und einen dritten (32) Raum, die sich beiderseits des Zahnpaars (22, 23) befinden, wobei in diese Räume abwechselnd und teilweise die Scheibe (19) der zweiten Platte (11) eindringen kann, nachdem die Wippe (12) geschwenkt wurde, um sie unbeweglich zu machen.
EP99106602A 1999-03-31 1999-03-31 Hemmung für Zeitmesser Expired - Lifetime EP1041459B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99106602A EP1041459B1 (de) 1999-03-31 1999-03-31 Hemmung für Zeitmesser
DE69902990T DE69902990T2 (de) 1999-03-31 1999-03-31 Hemmung für Zeitmesser
US09/531,170 US6301981B1 (en) 1999-03-31 2000-03-21 Escapement for a timekeeper
JP2000098062A JP2000304873A (ja) 1999-03-31 2000-03-31 時計の脱進機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99106602A EP1041459B1 (de) 1999-03-31 1999-03-31 Hemmung für Zeitmesser

Publications (2)

Publication Number Publication Date
EP1041459A1 EP1041459A1 (de) 2000-10-04
EP1041459B1 true EP1041459B1 (de) 2002-09-18

Family

ID=8237897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106602A Expired - Lifetime EP1041459B1 (de) 1999-03-31 1999-03-31 Hemmung für Zeitmesser

Country Status (4)

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US (1) US6301981B1 (de)
EP (1) EP1041459B1 (de)
JP (1) JP2000304873A (de)
DE (1) DE69902990T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2303518T3 (es) 2001-01-09 2008-08-16 Ulysse Nardin S.A. Escape para regulador de tiempo o cronometro.
EP1276021B1 (de) 2001-06-26 2008-12-31 Ulysse Nardin S.A. Hemmung für einen Zeitmesser
US6948686B2 (en) 2002-04-10 2005-09-27 Walter Holemans Constant rate deployment device
DE60233783D1 (de) 2002-05-28 2009-11-05 Manuf Et Fabrique De Montres E Hemmung für Uhren
TW568209U (en) * 2002-10-18 2003-12-21 Lite On It Corp Gear type linkage device with fool proof
CH700720B1 (fr) * 2003-06-23 2010-10-15 Ronda Ag Engrenage pour mouvement de montre et mécanisme d'affichage du quantième muni d'un tel engrenage.
EP1538490B1 (de) * 2003-12-04 2007-05-30 Montres Breguet S.A. Chronometerhemmung für Armbanduhren
CA2492681A1 (en) 2004-01-16 2005-07-16 Maytag Corporation Rack and pinion stabilizer system
EP1708046B1 (de) * 2005-03-30 2008-03-26 Montres Breguet S.A. Chronometerhemmung für Uhren
ATE390653T1 (de) * 2005-03-30 2008-04-15 Montres Breguet Sa Chronometerhemmung für uhren
JP4894051B2 (ja) * 2005-07-04 2012-03-07 モントレ ブレゲ エスエー 高性能のレバー脱進機構
EP1770452A1 (de) * 2005-09-30 2007-04-04 Peter Baumberger Chronometerhemmung für Uhren
ATE433136T1 (de) * 2007-03-09 2009-06-15 Eta Sa Mft Horlogere Suisse Hemmung mit tangentialimpulsen
ATE456078T1 (de) * 2007-04-18 2010-02-15 Eta Sa Mft Horlogere Suisse Direktimpulshemmung für uhren
EP1983389B1 (de) * 2007-04-18 2009-11-25 ETA SA Manufacture Horlogère Suisse Hemmung, die zwei Hemmungsräder umfasst
EP1983390B1 (de) * 2007-04-18 2009-11-04 ETA SA Manufacture Horlogère Suisse Ankerhemmung, die zwei Hemmungszahnräder umfasst
EP2199875B1 (de) * 2008-12-16 2014-09-24 Rolex Sa Chronometerhemmung
JP5614963B2 (ja) * 2009-09-25 2014-10-29 株式会社ケーヒン 駆動力伝達機構
EP2363762B1 (de) * 2010-03-04 2017-11-22 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
EP2487546B1 (de) * 2011-02-11 2021-06-30 Montres Journe S.A. Zweiachsige Hochleistungshemmung
JP5961753B2 (ja) * 2012-06-07 2016-08-02 デトラ ソシエテ アノニム 時計用脱進装置
CN105849650B (zh) * 2013-12-23 2018-09-21 尼瓦洛克斯-法尔股份有限公司 用于钟表的非接触式圆柱擒纵机构
JP6347439B2 (ja) * 2014-03-06 2018-06-27 セイコーインスツル株式会社 脱進機、時計用ムーブメントおよび時計
JP6206877B2 (ja) * 2014-03-06 2017-10-04 セイコーインスツル株式会社 脱進機、時計用ムーブメントおよび時計
CH716337A1 (fr) 2019-06-19 2020-12-30 Mft Dhorlogerie Audemars Piguet Sa Ensemble pour échappement à ancre de mouvement horloger.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2354020A (en) * 1941-07-26 1944-07-18 Mefina Sa Clockwork escapement
CH263069A (fr) * 1944-03-22 1949-08-15 Jeanneret Abram Louis Echappement.
US3143848A (en) * 1957-01-02 1964-08-11 Hamilton Watch Co Indexing mechanism
DE2458503A1 (de) * 1974-12-11 1976-06-16 Graesslin Feinwerktech Hemmung, insbesondere fuer zeitlaufwerke

Also Published As

Publication number Publication date
US6301981B1 (en) 2001-10-16
DE69902990D1 (de) 2002-10-24
EP1041459A1 (de) 2000-10-04
DE69902990T2 (de) 2003-05-22
JP2000304873A (ja) 2000-11-02

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