EP2570864B1 - Uhren-Federgehäuse mit reduziertem Durchmesser - Google Patents

Uhren-Federgehäuse mit reduziertem Durchmesser Download PDF

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Publication number
EP2570864B1
EP2570864B1 EP11181354.9A EP11181354A EP2570864B1 EP 2570864 B1 EP2570864 B1 EP 2570864B1 EP 11181354 A EP11181354 A EP 11181354A EP 2570864 B1 EP2570864 B1 EP 2570864B1
Authority
EP
European Patent Office
Prior art keywords
drum
barrel
core
ratchet
integral
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
EP11181354.9A
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English (en)
French (fr)
Other versions
EP2570864A1 (de
Inventor
Edmond Capt
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.)
Blancpain SA
Original Assignee
Blancpain 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
Priority to EP11181354.9A priority Critical patent/EP2570864B1/de
Application filed by Blancpain SA filed Critical Blancpain SA
Priority to CN201280045152.2A priority patent/CN103827756B/zh
Priority to PCT/EP2012/067908 priority patent/WO2013037867A1/fr
Priority to US14/239,730 priority patent/US9146535B2/en
Priority to RU2014109924/28A priority patent/RU2557673C1/ru
Priority to EP12758482.9A priority patent/EP2756358B1/de
Priority to KR1020147009889A priority patent/KR101620765B1/ko
Priority to JP2014530206A priority patent/JP5807122B2/ja
Publication of EP2570864A1 publication Critical patent/EP2570864A1/de
Priority to HK14110432A priority patent/HK1197104A1/xx
Application granted granted Critical
Publication of EP2570864B1 publication Critical patent/EP2570864B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • G04B1/165—Spring cylinder with friction transmission to the gearing (especially for Roskopf clockworks)
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/14—Mainsprings; Bridles therefor
    • G04B1/145—Composition and manufacture of the springs
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor

Definitions

  • the invention relates to a barrel assembly for a mechanical watch with reduced bung diameter.
  • the invention also relates to a watch movement comprising at least one such barrel assembly.
  • the invention also relates to a timepiece comprising at least one such movement and / or at least one such barrel assembly.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • one solution consists of a decrease in the diameter of the barrel shaft and the associated bung, so as to increase the space available in the drum. for the spring.
  • the ratio of the bead radius to the thickness of the spring is usually between 10 and 20, and the invention proposes to lower this ratio below 10, and preferably in the range between 5 and 10.
  • a ratchet is mounted axially on a barrel axis or on a bung, via a square, the ratchet being generally fixed by an axial screw.
  • the size of this screw and that of the square thus condition a minimum diameter of a pivoting surface.
  • a shoulder abutting with this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or bridge carrying a stone or the like.
  • a diameter even greater than that of this shoulder is necessary for a pivoting guide surface of the drum on the shaft or on the bung, combined with a shoulder limiting axial fretting of the drum.
  • the respect of minimal sections of matter implies a quotation chain which results in a large size, difficult to reduce. In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.
  • the document FR 2 287 717 A1 in the name of SCHILD describes a barrel with a ratchet wheel attached to the shaft and adjacent to the bridge in which this shaft pivots. It comprises a pawl in one piece, formed of a rigid portion rotatable about the shaft between a locking position and a release position, and an elastic arm whose free end has a detent able to engage in the teeth of the ratchet. This pawl is housed in a recess of the bridge between the bridge and the ratchet wheel.
  • the arm has at its free end a bearing element situated inside the contour of the ratchet, the flanks of this recess comprise two abutment elements cooperating, in the locked position, one with the support element, and the other with the latching nose, to determine the locking position.
  • the document FR 1 371 491 A in the name of PONS describes a method and a lubricating device.
  • the ratchet attached to the barrel shaft has access openings on a portion of the barrel bridge or on a portion of the upper barrel bushing.
  • the deck may have similar openings, as well as the deck for access to the cover pad.
  • the barrel and the lid of a barrel pivot in a limited manner by the walls of a cavity formed by a plate and a bridge clad on each other.
  • the drum pivots about the barrel axis through a ring that has two flats that cooperate with an oblong slot of the drum.
  • This ring carries, by a thread, the ratchet which pivots in a limited way by the walls of a cavity defined by the plate and the drum.
  • the shaft carries, on the opposite side, a wheel between the cover and the bridge.
  • the document CH 295 135 A in the name of BRAC describes a barrel whose bonde carries the ratchet, whose movement is limited by a net on the plate.
  • This bung pivots on an axis whose one end cooperates with a bore of the plate, and the other end has a thread.
  • This thread cooperates with the tapping of a centering box mounted in a bore of the bridge.
  • the thread and the support plate hold a centering ring abutting the end of the bung on the side of the bridge.
  • the document EP 2 196 866 A2 in the name of ARTISANS HORLOGERS SARL concerns a bayonet attachment of the ratchet on an end square of the tree. It combines a non-circular drive profile at the end of the shaft, which is separated by a groove, a shoulder for abutment abutment of the ratchet.
  • the ratchet has a shape complementary shape to this non-circular drive profile, on which it is threaded and then abutted on the collar.
  • a fixing washer has a cut complementary shape to the non-circular drive profile of the shaft, on which it is threaded. This washer is then screwed on the ratchet by at least one eccentric screw.
  • the document JP 11 183644 A in the name of SEIKO INSTR INC relates to a barrel which comprises, for the display of the power reserve of the barrel, the use of the drum as a carrier, which embodies a planetary wheel pivotally mounted on its bottom.
  • the board of this planet wheel meshes with a coaxial wheel of the barrel axis, while its pinion meshes with a sun gear, also coaxial with the barrel axis, held axially by a stop.
  • This sun wheel meshes with a wheel of a gear wheel pivoted on the plate of the movement.
  • the invention proposes to set up a solution allowing a significant reduction of the bung diameter compared to the prior art.
  • the invention relates to a watch cylinder assembly, according to claim 1.
  • the invention also relates to a movement comprising at least one such barrel assembly for energy storage.
  • the invention also relates to a timepiece comprising at least one such clockwork movement and / or at least one such barrel assembly for energy storage.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • the invention relates to a mechanical watch cylinder with reduced bung diameter.
  • the invention relates to a barrel 1 watch assembly, comprising a mainspring 2 barrel.
  • This spring 2 is mounted between, at a first end 21 a barrel drum 3, and at a second end 22 a receiving surface 5 which comprises a barrel plug 4 coaxial with the drum 3 about a pivot axis D.
  • the maximum radius of the bung 4 relative to the pivot axis D is less than ten times the maximum thickness of the spring 2, and preferably less than eight times this thickness, thanks to the arrangements described below.
  • the outer diameter of the plug 4 is gradually decreasing from the flange 40 to the second end 87.
  • the outer diameter of the plug 4 is gradually decreasing from the flange 40 to the first end 86.
  • the span 43 constitutes the range of larger diameter after the collar 40.
  • the barrel assembly 1 comprises extraction means 190, which are arranged to allow the axial extraction of the bung 4, along the pivot axis D, by the exercise of a thrust or traction force. on the bung 4.
  • these extraction means 190 are constituted by at least one groove 191 and / or a shoulder that includes the bung 4 near the second end 87 and beyond the span 44.
  • the spring 2 is enclosed in a chamber 32 delimited by the drum 3 and a cover 7 fixed on the drum 3, and the bung 4 comprises a second outer shaft portion 44 on which a bore 75 of the lid 7 slides.
  • the plug 4 is made of at least two parts, the first part 4A of smaller diameter than the smaller of the two diameters of the bore 35 of the drum 3 and the bore 75 of a lid 7, and the other part 2 4B having a bore driven on the first portion 4A.
  • This second part 4B either comprises the receiving surface 5 of the mainspring 2, or constitutes the inner end of the mainspring 2.
  • the plug 4 is made of at least two parts.
  • the first inner part 4A comprises the fixing means 120 of a ratchet 12 or constitutes the ratchet 12, and comprises the first pivoting surface 181.
  • This first part 4A comprises a centering surface 183 and a threading 185, respectively a tapping, according to the pivot axis D.
  • the other second portion 4B has a centering bore 184 fitted on the centering surface 183, and comprises a tapping 186, respectively a thread, complementary to the thread 185, respectively tapping, the first portion 4A.
  • This second part 4B carries the bearing surface 43, the collar 40, the receiving surface 5 of the driving spring 2 or constitutes the inner end of the driving spring 2, and is still carrying the bearing surface 44, and the second pivoting range 182.
  • the bung 4 is made of at least two parts, the first part 4A having a cylindrical or tubular barrel shaft 18 and having at its two opposite axial ends the first pivoting surface 181 and the second bearing surface pivoting 182, which are or monobloc with the barrel shaft or reported on the latter by screwing and / or hooping and / or welding.
  • the other second part 4B carries the bearing surface 43, the collar 40, comprises the receiving surface 5 of the motor spring 2 or constitutes the inner end of the driving spring 2, and still carries the bearing surface 44.
  • This second portion 4B comprising a bore bored on the first part 4A.
  • the first part 4A is made in one piece with a ratchet holder 81 or with a ratchet 12.
  • the second part 4B advantageously comprises drive means 187 pivoting the first part 4A and / or a ratchet 12 arranged to cooperate with complementary drive means 188 that includes the first part 4A or the ratchet 12, and to provide both a pivotal contact and a contact in the axial direction of the pivot axis D.
  • a clearance 188 made in the ratchet 12 by a drill string cooperates with a profile 187 comprising two milled dishes at the end of the bung.
  • the second part 4B itself consists of several coaxial parts, one of which is in the form of a ring and carries a hook 41 for hooking a shell which comprises the at least one spring 2.
  • the receiving surface 5 carries a hook 41 hooking a shell that includes the at least one spring 2, and the bung 4 comprises, at the right of the hook 41, and in particular at the collar 40, a clearance 52 for the passage of a cutter or a drill string for machining the hook 41.
  • the ratchet 12 could be in one piece with the bung and the receiving surface 5 could be a surface of revolution with respect to the pivot axis D.
  • the spring 2 is fixed to the bung 4 by friction.
  • the spring 2 forms with the bung 4 a welded or brazed monoblock spring-binder subassembly.
  • the invention also relates to a watchmaking movement 100 comprising at least one such barrel assembly 1 for storing energy with an incorporated input, or else a ratchet 12 pivotally mounted on the bung 4 or a spindle.
  • the invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly 1 for energy storage with an incorporated input, or a ratchet 12 mounted solidarity pivoting the bung 4 or a barrel shaft 18 secured to the bung 4, or by a toothing drum 13 pivotally integral with the drum 3, and an output constituted respectively, or by a solid drum toothing 13 in pivoting drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4 or the barrel shaft 18.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Springs (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Gears, Cams (AREA)
  • Electromechanical Clocks (AREA)

Claims (5)

  1. Uhrenfederhausanordnung (1), umfassend ein Sperrrad (12) und mindestens eine Federhaus-Zugfeder (2), die montiert ist zwischen einer Federhaustrommel (3) an einem ersten Ende (21) und einer Aufnahmeoberfläche (5) an einem zweiten Ende (22), die ein Federhausbund (4) aufweist, der koaxial zu der Trommel (3) um eine Drehachse (D) ist, wobei der maximale Radius des Bundes (4) in Bezug auf die Drehachse (D) kleiner als die zehnfache maximale Dicke der Feder (2) ist, wobei der Bund (4) nacheinander, ausgehend von einem ersten Ende (86) zu einem zweiten Ende (87), umfasst:
    - einen ersten Schwenkbereich (181) in einer Platine (10) oder einer Brücke eines Uhrenmechanismus,
    - Mittel (120) zum Befestigen eines Sperrrades (12),
    - dann einen Schwenkbereich (43) in Bezug auf eine Bohrung (35) der Trommel (3),
    - dann ein Bördel (40), der in Bezug auf den Bereich (43) radial vorsteht und mit einer Innenfläche (31), die die Trommel (3) auf Seiten der mindestens einen Feder (2) aufweist, abstützend zusammenwirkt,
    - dann, bündig mit oder radial zurückversetzt zu dem Bördel (40), die Aufnahmeoberfläche (5) der mindestens einen Feder (2),
    - dann, radial zurückspringend in Bezug zu der Aufnahmeoberfläche (5), einen Schwenkbereich (44) in Bezug auf eine Bohrung (75) eines Deckels (7), der dafür ausgelegt ist, mit der Trommel (3) eine Kammer (32) zu bilden, die die mindestens eine Zugfeder (2) enthält,
    - dann einen zweiten Schwenkbereich (182) in einer Platine oder einer Brücke des Uhrenmechanismus,
    wobei der Bund (4) aus mindestens zwei Teilen ausgebildet ist, wovon ein erster Teil (4A) eine zylindrische oder rohrförmige Federwelle (18) umfasst und an seinen zwei gegenüberliegenden axialen Enden den ersten Schwenkbereich (181) und den zweiten Schwenkbereich (182) aufweist, die entweder einteilig mit der Federwelle ausgebildet sind oder an diese Letztere durch Verschrauben und/oder Warmaufziehen und/oder Schweißen angefügt sind, und wovon das andere, zweite Ende (4B), das den Schwenkbereich (43) in Bezug auf eine Bohrung (35) der Trommel (3) und den Bördel (40) trägt, die Aufnahmeoberfläche (5) der Zugfeder (2) aufweist oder das innere Ende der Zugfeder (2) bildet und außerdem den Schwenkbereich (44) in Bezug auf eine Bohrung (75) des Deckels (7) trägt, wobei der zweite Teil (4B) eine auf den ersten Teil (4A) getriebene Bohrung aufweist,
    dadurch gekennzeichnet, dass der zweite Teil (4B) Mittel (187) für den Schwenkantrieb des Sperrrades (12) umfasst, die dafür ausgelegt sind, mit komplementären Antriebsmitteln (188) zusammenzuwirken, die das Sperrrad (12) aufweist, und um außerdem sowohl einen Schwenkkontakt als auch einen Kontakt in der axialen Richtung der Drehachse (D) sicherzustellen,
    und dadurch, dass die komplementären Antriebsmittel (188) gebildet sind durch einen Freiraum in dem Sperrrad (12), ausgelegt, um mit den Antriebsmitteln (187) zusammenzuwirken, die durch ein zwei Flächen am Ende des Bundes aufweisendes Profil gebildet sind.
  2. Federhausanordnung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Feder (2) an dem Bund (4) durch Reibung befestigt ist.
  3. Federhausanordnung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Feder (2) an den Bund (4) verschweißt oder verlötet ist, sodass sie eine einteilige Feder-Bund-Unteranordnung bilden.
  4. Uhrwerk (100), umfassend mindestens eine Federhausanordnung (1) nach einem der vorhergehenden Ansprüche für die Energiespeicherung mit einem Eingang, der gebildet ist entweder durch ein Sperrrad (12), das drehfest an dem Bund (4) oder an einer mit dem Bund (4) fest verbundenen Federwelle (18) montiert ist, oder durch eine Trommelzahnung (13), die drehfest an der Trommel (3) befestigt ist, und mit einem Ausgang, der gebildet ist entweder durch eine Trommelzahnung (13), die drehfest an der Trommel (3) befestigt ist, oder durch ein Sperrrad (12), das drehfest an dem Bund (4) oder an der Federwelle (18) montiert ist.
  5. Zeitmessgerät (1000), umfassend mindestens ein Uhrwerk (100) nach Anspruch 4 und/oder mindestens eine Federhausanordnung (1) nach einem der Ansprüche 1 bis 3 für die Energiespeicherung mit einem Eingang, der gebildet ist entweder durch ein Sperrrad (12), das an dem Bund (4) oder an einer mit dem Bund (4) fest verbundenen Federwelle (18) drehfest montiert ist, oder durch eine Trommelzahnung (13), die mit der Trommel (3) drehfest verbunden ist, und mit einem Ausgang, der entsprechend gebildet ist durch eine Trommelzahnung (13), die mit der Trommel (3) drehfest verbunden ist, oder durch ein Sperrrad (12), das drehfest an dem Bund (4) oder der Federwelle (18) montiert ist.
EP11181354.9A 2011-09-15 2011-09-15 Uhren-Federgehäuse mit reduziertem Durchmesser Active EP2570864B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP11181354.9A EP2570864B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäuse mit reduziertem Durchmesser
PCT/EP2012/067908 WO2013037867A1 (fr) 2011-09-15 2012-09-13 Barillet d'horlogerie a diametre de bonde reduit
US14/239,730 US9146535B2 (en) 2011-09-15 2012-09-13 Timepiece barrel with reduced core diameter
RU2014109924/28A RU2557673C1 (ru) 2011-09-15 2012-09-13 Барабан часового механизма с уменьшенным диаметром сердечника
CN201280045152.2A CN103827756B (zh) 2011-09-15 2012-09-13 具有小的芯部直径的钟表发条盒
EP12758482.9A EP2756358B1 (de) 2011-09-15 2012-09-13 Uhren-federgehäuse mit reduziertem kernesdurchmesser
KR1020147009889A KR101620765B1 (ko) 2011-09-15 2012-09-13 작은 코어 직경을 갖는 타임피스 배럴
JP2014530206A JP5807122B2 (ja) 2011-09-15 2012-09-13 コアの直径が低減された時計の香箱
HK14110432A HK1197104A1 (en) 2011-09-15 2014-10-20 Timepiece barrel having a small core diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11181354.9A EP2570864B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäuse mit reduziertem Durchmesser

Publications (2)

Publication Number Publication Date
EP2570864A1 EP2570864A1 (de) 2013-03-20
EP2570864B1 true EP2570864B1 (de) 2018-11-14

Family

ID=46832409

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11181354.9A Active EP2570864B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäuse mit reduziertem Durchmesser
EP12758482.9A Active EP2756358B1 (de) 2011-09-15 2012-09-13 Uhren-federgehäuse mit reduziertem kernesdurchmesser

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12758482.9A Active EP2756358B1 (de) 2011-09-15 2012-09-13 Uhren-federgehäuse mit reduziertem kernesdurchmesser

Country Status (8)

Country Link
US (1) US9146535B2 (de)
EP (2) EP2570864B1 (de)
JP (1) JP5807122B2 (de)
KR (1) KR101620765B1 (de)
CN (1) CN103827756B (de)
HK (1) HK1197104A1 (de)
RU (1) RU2557673C1 (de)
WO (1) WO2013037867A1 (de)

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EP2570861A1 (de) * 2011-09-15 2013-03-20 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2570862B1 (de) * 2011-09-15 2014-03-05 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser
EP2746867B1 (de) * 2012-12-18 2015-12-16 ETA SA Manufacture Horlogère Suisse Federgehäuse einer Uhr
EP2746865B1 (de) 2012-12-18 2016-03-02 ETA SA Manufacture Horlogère Suisse Federgehäuse einer Uhr
EP3575885B1 (de) * 2018-06-01 2022-09-21 Nivarox-FAR S.A. Federhaus für uhren

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Also Published As

Publication number Publication date
US20140211595A1 (en) 2014-07-31
US9146535B2 (en) 2015-09-29
JP5807122B2 (ja) 2015-11-10
KR101620765B1 (ko) 2016-05-12
EP2570864A1 (de) 2013-03-20
HK1197104A1 (en) 2015-01-02
KR20140059862A (ko) 2014-05-16
WO2013037867A1 (fr) 2013-03-21
RU2557673C1 (ru) 2015-07-27
CN103827756B (zh) 2016-08-17
EP2756358B1 (de) 2016-07-27
JP2014526689A (ja) 2014-10-06
CN103827756A (zh) 2014-05-28
EP2756358A1 (de) 2014-07-23

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