EP2080066B1 - Uhr - Google Patents

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Publication number
EP2080066B1
EP2080066B1 EP07820995A EP07820995A EP2080066B1 EP 2080066 B1 EP2080066 B1 EP 2080066B1 EP 07820995 A EP07820995 A EP 07820995A EP 07820995 A EP07820995 A EP 07820995A EP 2080066 B1 EP2080066 B1 EP 2080066B1
Authority
EP
European Patent Office
Prior art keywords
drum
plate
barrel
shaft
ring
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.)
Not-in-force
Application number
EP07820995A
Other languages
English (en)
French (fr)
Other versions
EP2080066A2 (de
Inventor
Patrick Kury
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.)
Eterna AG Uhrenfabrik
Original Assignee
Eterna AG Uhrenfabrik
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 Eterna AG Uhrenfabrik filed Critical Eterna AG Uhrenfabrik
Publication of EP2080066A2 publication Critical patent/EP2080066A2/de
Application granted granted Critical
Publication of EP2080066B1 publication Critical patent/EP2080066B1/de
Not-in-force 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
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/012—Metallic bearings
    • G04B31/0123—Metallic bearings with metallic ball bearings and metallic roller bearings

Definitions

  • the present invention relates to the field of mechanical watchmaking and more particularly relates to a timepiece whose barrel is advantageously arranged.
  • the barrel is the driving organ used in mechanical watches. It acts as an energy accumulator by being armed by the user or by an oscillating mass and by gradually restoring to the wheel of the watch the energy that it has stored.
  • the drum and the lid are generally pivoted to the barrel shaft to stabilize the barrel shaft.
  • a ratchet is mounted integral with the barrel shaft, generally square. It is driven by a winding device, manual or automatic, to rotate the shaft and arm the barrel spring.
  • the document CH 610178 proposes, in order to improve the pivoting quality of the barrel, to mount cantilevered by means of a ball bearing.
  • the barrel shaft is driven into the inner ring of this bearing while the outer ring is fixed in a housing in the plate.
  • the drum is pivoted from the outside by means of rollers with which it cooperates.
  • JP11174162 the possibility of mounting the barrel by means of a first ball bearing interposed between the drum and the shaft of the barrel, and a second ball bearing interposed between the shaft and the plate.
  • the size of this device is not very satisfactory.
  • the present invention aims not only to overcome these disadvantages, but also to improve the pivoting of the barrel.
  • the barrel drum is pivoted by a first ball bearing, one ring is integral with the plate and another ring is secured to the bottom of the drum. This other ring being placed on the face of said platinum side bottom.
  • the barrel shaft is pivoted in the plate by means of a second ball bearing.
  • the barrel shaft and the drum are pivotally mounted relative to the plate by means of a ball bearing comprising an intermediate ring fixed to the plate, an inner ring integral with the shaft and a outer ring secured to the bottom of the drum.
  • This is conventionally constituted of a cylinder 12 mounted on the plate 10 and comprises a shaft 14 provided with pivoting means on the plate 10.
  • the body of the shaft 14 defines a bung 16 provided with a hook 18.
  • a drum 20 is traversed at its center by the shaft 14 and, according to an important aspect of the present invention which will be detailed below, is pivoted on the plate 10.
  • the drum is provided with an external toothing 22 to cause a clockwork. It comprises a bottom located on the side of the plate and side walls forming its diameter which define a housing 24.
  • a clearance 26 is operated inside the side walls.
  • the drum 20 is free to pivot relative to the shaft 14 and may constitute a bearing for the latter.
  • a leaf spring is disposed in the housing 24, fixed by a first end to the hook 18 and by a second end to the drum, at the clearance 26.
  • a lid 28 closes the drum 20. It is also traversed by the shaft 14 at its center and may constitute a bearing for the latter.
  • a ratchet wheel 30 is mounted integral with the shaft 14, for example by means of a screw 32. This wheel is intended to be driven by winding means known to those skilled in the art to arm the leaf spring .
  • the pivoting means of the shaft 14 on the plate 10 also consist of a ball bearing 40, comprising a first inner ring 42 secured to the shaft, for example by driving and a second ring 44 (visible on the figures 5 and 6 )
  • the second ring of the bearing through which the shaft pivots is constituted by the intermediate ring 36.
  • the barrel shaft 14 and the drum 20 are pivotally mounted relative to the plate by means of a ball bearing comprising an intermediate ring 36 fixed to the plate, an inner ring 42 integral with the shaft and an outer ring 38 secured to the bottom of the drum.
  • the bottom of the drum 20 may have a slight extra thickness to strengthen it at the passage of the screws.
  • this extra thickness makes it possible to define a slight clearance between the bottom of the barrel 12 and the other elements of the bearing, avoiding any superfluous friction.
  • FIG. 2 An example of a bearing used is particularly visible on the figure 2 . It defines a general plan. In the following passage, the lower side of the bearing is arranged platinum side 10 on the figure 1 and its upper side is oriented towards the ratchet wheel 30.
  • the bearing thus comprises an inner ring 42 provided with a circular central hole, in which the shaft 14 is intended to take place.
  • the inner ring 42 has a foot 42a extending at the lower level of its outer wall, in the general plane of the bearing. The end of this foot 42a is shaped so as to have a rolling surface for the balls.
  • the intermediate ring 36 comprises a first groove 36a parallel to the general plane of the bearing, disposed on the inner wall, substantially in the middle of its thickness. It also has a foot 36b extending from the upper side of its outer wall, in the general plane of the bearing.
  • the groove 36a is shaped to form a raceway, while the foot 36b has a rolling surface for the balls.
  • the grooves are typically V-shaped.
  • the ring 36 is traversed by holes 46 to allow its attachment to the plate 10.
  • the outer ring 38 comprises a second groove 38a parallel to the general plane of the bearing, disposed on the inner wall, substantially in the middle of its thickness.
  • the groove 38a is shaped so as to form a raceway for the balls, it is typically V-shaped.
  • the outer wall is cylindrical and matches a recess of suitable shape, formed in the plate 10.
  • the ring 38 is traversed by holes 46 to allow its attachment to the drum 20.
  • Rings 48 are arranged, respectively, on the inner ring 42 and the intermediate ring 36, opposite their foot, so as to form with them a raceway for the balls.
  • the rings 48 are driven and welded to the rings after the placement of the balls, further ensuring the maintenance of all.
  • the feet and throats can be reversed. That is to say that the inner ring may have a groove on its outer wall, the inner wall of the intermediate ring then having a foot cooperating with a ring, etc.
  • the bearings used are micro-bearings whose precision must be maximum so as to ensure perfect positioning of the pivot axes and optimal guidance of the elements. moving.
  • These micro-bearings are, for example, produced by the company Micro Precision System AG.
  • Rotating the barrel drum 20 in this way makes it possible to position it in an excellent manner and to obtain pivoting conditions that generate little friction.
  • there is no need for guiding means peripheral which frees all the space around the barrel for other elements of the movement.
  • the fact that the intermediate ring 36, which constitutes the connecting element to the plate 10 and therefore the reference element for the pivoting of the shaft 14 and the drum 20, is of a relatively large diameter, in any case more important than if these elements were rotated directly at their pivot axis, provides said elements with better stability and greater accuracy in their movement.
  • the barrel shaft 14 is not cantilevered to improve the accuracy of its positioning. Its end located on the opposite side to the plate is pivoted by a third ball bearing 49 arranged by means of a shaft bridge 50, screwed onto the plate.
  • this bearing 49 comprises a first outer ring 52 driven into the bridge 50 and a second inner ring 54 integral with the shaft 14.
  • the ratchet wheel 30 overcomes the bearing 49 and the bridge 50 and is screwed into the shaft 14. It could also be disposed at the other end of the shaft 14.
  • the third bearing 49 is directly housed in the cylinder cover, which saves the bridge 50, thus reducing the thickness of the assembly.
  • the pivoting means of the shaft on the plate and those of the drum on the plate are independent.
  • the shaft is pivoted by a ball bearing 40 ( figure 4 and 5 ) or by conventional pivoting ( figure 6 ), by means of a stone 54.
  • the bearing 34 by which the drum 20 is pivoted on the plate 10 can then be fixed thereto by its inner ring 36 ( figure 4 ) or by its outer ring 38.
  • the bottom of the drum is respectively fixed to the outer ring 38 ( figure 4 ) or the inner ring 36 of the bearing.
  • the drum 20 and the shaft 14 are pivoted by means of a single bearing comprising three rings 36, 42 and 38, as in the preferred embodiment, but the bottom of the drum is secured to the intermediate ring 36, while the outer ring 38 is fixed to the plate 10.
  • this outer ring 38 is driven into a recess of the plate provided for this purpose.
  • the power reserve of such a cylinder is improved, thanks to its performance, superior to those of the state of the art. It is thus possible to use a weaker spring, therefore of lesser thickness, to give the desired amplitude to the balance.
  • the spring can be wound on a larger number of turns in the same volume and thus store a greater energy.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Rolling Contact Bearings (AREA)
  • Electric Clocks (AREA)
  • Transmission Devices (AREA)

Claims (9)

  1. Uhr, die eine Werkplatte (10) und ein auf der Werkplatte montiertes Federhaus umfasst, wobei das Federhaus aufweist
    eine Trommel (20), die einen Boden und Seitenwände umfasst,
    eine Welle (14), die die Trommel in ihrem Zentrum durchquert und mit Drehmitteln (40, 54) auf der Werkplatte ausgestattet ist,
    eine Blattfeder, die in der Trommel untergebracht ist und über ein erstes Ende mit der Welle und über ein zweites Ende mit der Trommel zusammenarbeitet, und
    einen Deckel (28), der von der Welle durchquert wird und die Trommel verschließt,
    ein Sperrrad (30), das kinematisch mit der Welle für das Spannen der Feder verbunden ist,
    dadurch gekennzeichnet, dass die Trommel von einem ersten Kugellager (34) gedreht wird, von dem ein Ring (36) mit der Werkplatte verbunden ist und ein anderer Ring (38) mit dem Boden der Trommel verbunden ist, wobei dieser andere Ring auf der werkplattenseitigen Fläche des Bodens angeordnet ist.
  2. Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Federhauswelle (14) in der Werkplatte (10) mit Hilfe eines zweiten Kugellagers (40) gedreht wird.
  3. Uhr nach Anspruch 2, dadurch gekennzeichnet, dass die Federhauswelle (14) und die Trommel (20) im Verhältnis zur Werkplatte (10) mit Hilfe eines Kugellagers, das einen an der Werkplatte befestigten Zwischenring (36), einen mit der Welle verbundenen Innenring (42) und einen mit dem Boden der Trommel verbundenen Außenring (38) umfasst, drehend montiert sind.
  4. Uhr nach Anspruch 2, dadurch gekennzeichnet, dass die Federhauswelle (14) und die Trommel (20) im Verhältnis zur Werkplatte (10) mit Hilfe eines Kugellagers, das einen am Boden der Trommel befestigten Zwischenring (36), einen mit der Welle verbundenen Innenring (42) und einen mit der Werkplatte verbundenen Außenring (38) umfasst, drehend montiert sind.
  5. Uhr nach vorangehendem Anspruch, dadurch gekennzeichnet, dass der Außenring in eine in die Werkplatte eingearbeitete Vertiefung eingepresst ist.
  6. Uhr nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Federhauswelle (14) weiterhin durch ein drittes Kugellager (49) an ihrem Ende, das sich an der der Werkplatte (10) gegenüberliegenden Seite befindet, gedreht wird.
  7. Uhr nach Anspruch 6, dadurch gekennzeichnet, dass das dritte Kugellager (48) mit Hilfe einer Brücke über dem Federhaus (12) ausgebildet ist.
  8. Uhr nach Anspruch 7, dadurch gekennzeichnet, dass das Sperrrad (30) auf der dem Federhaus gegenüberliegenden Seite der Brücke angeordnet ist.
  9. Uhr nach Anspruch 6, dadurch gekennzeichnet, dass das dritte Kugellager (49) im Deckel (28) untergebracht ist.
EP07820995A 2006-10-20 2007-10-05 Uhr Not-in-force EP2080066B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01668/06A CH702035B1 (fr) 2006-10-20 2006-10-20 Pièce d'horlogerie.
PCT/EP2007/060622 WO2008046750A2 (fr) 2006-10-20 2007-10-05 Piece d'horlogerie

Publications (2)

Publication Number Publication Date
EP2080066A2 EP2080066A2 (de) 2009-07-22
EP2080066B1 true EP2080066B1 (de) 2011-04-20

Family

ID=39314387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07820995A Not-in-force EP2080066B1 (de) 2006-10-20 2007-10-05 Uhr

Country Status (9)

Country Link
US (1) US7942573B2 (de)
EP (1) EP2080066B1 (de)
JP (1) JP5118142B2 (de)
CN (1) CN101535904B (de)
AT (1) ATE506637T1 (de)
CH (1) CH702035B1 (de)
DE (1) DE602007014089D1 (de)
HK (1) HK1133092A1 (de)
WO (1) WO2008046750A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512862A1 (de) * 2012-03-19 2013-11-15 Montre Exacte E U Antriebsvorrichtung für ein mechanisches Uhrwerk

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702994B1 (fr) 2010-04-26 2015-07-31 Eterna Sa Fabrique D Horlogerie Pièce d'horlogerie comprenant un barillet monté sur un pont de barillet.
EP2466397B1 (de) * 2010-12-20 2013-08-21 Blancpain S.A. Drehteil einer Uhr mit peripherem Antrieb
EP2570862B1 (de) * 2011-09-15 2014-03-05 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser
EP2570863B1 (de) * 2011-09-15 2017-11-08 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2570865B1 (de) * 2011-09-15 2014-03-05 Montres Breguet SA Uhren-Federgehäusebaugruppe mit reduziertem Federkerndurchmesser
JP6219925B2 (ja) * 2012-04-04 2017-10-25 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時計ムーブメント用香箱真、ゼンマイ、ならびにそのゼンマイおよび／またはその香箱真を備える香箱
EP2746865B1 (de) * 2012-12-18 2016-03-02 ETA SA Manufacture Horlogère Suisse Federgehäuse einer Uhr
EP2746867B1 (de) * 2012-12-18 2015-12-16 ETA SA Manufacture Horlogère Suisse Federgehäuse einer Uhr
EP2869134B1 (de) * 2013-11-04 2020-02-26 Chronometrie Ferdinand Berthoud SA Federhaussystem für Uhr
EP3974913A1 (de) * 2014-06-30 2022-03-30 Rolex Sa Federgehäuse für uhr
US11243497B2 (en) * 2017-09-25 2022-02-08 Rolex Sa Timepiece bearing

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
GB955499A (en) 1962-02-23 1964-04-15 A & M Fell Ltd Improvements in or relating to clocks
CH449327A (fr) * 1965-12-15 1967-12-31 Jacot Guillarmod Maurice Barillet-moteur à grande accumulation d'énergie
IT1074807B (it) * 1976-02-18 1985-04-20 Bouchet Lassale Sa Dispositivo di imperniamento per bariletto d'orologio
CH610178B (fr) 1976-02-18 Bouchet Lassale Sa Mouvement de montre.
CH682871B5 (fr) * 1992-06-06 1994-06-15 Piguet Frederic Sa Mouvement de montre extra-plat.
JPH11174162A (ja) * 1997-12-11 1999-07-02 Seiko Instruments Inc 香箱車及び機械式時計
CN1249449A (zh) * 1998-09-30 2000-04-05 东方时计株式会社 发条动力的指示机构及钟表
US7012855B1 (en) * 1999-12-23 2006-03-14 Miguel Guillermo Ochoa Loaiza World globe pocket clock and world globe desk clock
US6603709B2 (en) * 1999-12-23 2003-08-05 Miguel Guillermo Ochoa Loaiza World globe pocket clock and world globe desk clock
US6478469B1 (en) * 2000-11-03 2002-11-12 Accessible Technologies, Inc. Velocity variance reducing multiple bearing arrangement for impeller shaft of centrifugal supercharger
US6651633B1 (en) * 2000-11-03 2003-11-25 Accessible Technologies, Inc. Centrifugal compressor having compound bearing assembly
EP1243984B1 (de) * 2001-03-21 2008-12-24 CHRONOSWISS UHREN GmbH Uhrwerk
EP1582943B1 (de) * 2004-04-01 2008-09-03 Richemont International S.A. Uhrwerk mit mehreren Federhäusern

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT512862A1 (de) * 2012-03-19 2013-11-15 Montre Exacte E U Antriebsvorrichtung für ein mechanisches Uhrwerk
AT512862B1 (de) * 2012-03-19 2014-02-15 Montre Exacte E U Antriebsvorrichtung für ein mechanisches Uhrwerk

Also Published As

Publication number Publication date
EP2080066A2 (de) 2009-07-22
DE602007014089D1 (de) 2011-06-01
US7942573B2 (en) 2011-05-17
US20100322039A1 (en) 2010-12-23
HK1133092A1 (en) 2010-03-12
CN101535904B (zh) 2012-01-18
WO2008046750A8 (fr) 2009-05-07
JP5118142B2 (ja) 2013-01-16
ATE506637T1 (de) 2011-05-15
CN101535904A (zh) 2009-09-16
JP2010507081A (ja) 2010-03-04
CH702035B1 (fr) 2011-04-29
WO2008046750A2 (fr) 2008-04-24
WO2008046750A3 (fr) 2008-08-21

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