EP1637940A2 - Spiralrolle für Uhren - Google Patents

Spiralrolle für Uhren Download PDF

Info

Publication number
EP1637940A2
EP1637940A2 EP05018335A EP05018335A EP1637940A2 EP 1637940 A2 EP1637940 A2 EP 1637940A2 EP 05018335 A EP05018335 A EP 05018335A EP 05018335 A EP05018335 A EP 05018335A EP 1637940 A2 EP1637940 A2 EP 1637940A2
Authority
EP
European Patent Office
Prior art keywords
flexible structure
ring according
watch ring
shaft
ferrule
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.)
Granted
Application number
EP05018335A
Other languages
English (en)
French (fr)
Other versions
EP1637940B1 (de
EP1637940A3 (de
Inventor
Sylvain Jeanneret
Andreas Kuoni
Frédéric Maier
Michel Belot
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 claimed from CH01426/04A external-priority patent/CH698081B1/fr
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP1637940A2 publication Critical patent/EP1637940A2/de
Publication of EP1637940A3 publication Critical patent/EP1637940A3/de
Application granted granted Critical
Publication of EP1637940B1 publication Critical patent/EP1637940B1/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • G04B17/345—Details of the spiral roll

Definitions

  • the present invention relates to a timepiece ferrule, more particularly a ferrule for driving a spiral on the shaft of a pendulum in a clockwork movement.
  • the ferrules found in current watch movements are often made of steel or brass and, generally, deform plastically when they are driven on the balance shaft.
  • resilient ferrules are also known capable of elastically tightening the balance shaft. The latter have several advantages, including that of being made in a brittle material such as silicon.
  • Such an elastic shell is described in EP 1 513 029. It comprises an elastic structure surrounded by a stiffening structure.
  • the present invention aims to provide an elastic ferrule which, with respect to the known elastic ferrules, in particular that according to EP 1 513 029, is capable of exerting a greater clamping force and / or of being more deformed.
  • a ferrule 1 according to the invention comprises an inner flexible structure 2 adapted to receive and resiliently tighten a shaft with a circular section 3, typically a balance shaft, and an external stiffening structure 4 surrounding the flexible structure 2.
  • the stiffening structure 4 is attached to the flexible structure 2 at distinct points 5, thus defining recesses 6 between the structures 2 and 4.
  • the ferrule 1 is typically attached to the inner end of a hairspring (not shown) at a point 7.
  • the shell 1 and the hairspring can be made in one piece, for example silicon.
  • the flexible structure 2 is preferably in the form of a regular closed curve, such as a regular polygon, having a determined number of points of contact with the balance shaft 3, different from the points of attachment of the structure of the structure. rigidification 4 to the flexible structure 2.
  • the flexible structure 2 is substantially in the shape of an equilateral triangle and thus has three points of contact with the shaft 3, and its vertices correspond to the aforementioned points of attachment 5.
  • the elasticity of the structure 2 results from the relatively thin thickness in the plane of the ferrule of each of its sides 8 intended to be in contact with the shaft 3.
  • This thickness which, as will be seen below, is variable, is calculated so that the maximum stress exerted by the balance shaft 3 on the structure 2 is less than the elastic limit of the material forming the shell 1, the shell 1 accommodates manufacturing tolerances of the shaft balance 3 and that the holding of the ferrule 1 on the shaft 3 (torque, driving force) is adequate.
  • the flexible structure 2 Due to its closed and regular shape, the flexible structure 2 has a center of gravity which remains substantially the same before and after the driving of the shell on the shaft 3.
  • the stiffening structure 4 is also in the form of a closed curve and thus completely surrounds the flexible structure 2.
  • the stiffening structure 4 has a shape similar to that of the flexible structure 2, that is to say substantially equilateral triangular, but its vertices 9, corresponding to the points of attachment 5, that is to say to the vertices of the equilateral triangle formed by the flexible structure 2, are rounded.
  • the stiffening structure 4 has a sufficient thickness in the plane of the ferrule to almost not deform during the driving of the shell on the shaft 3 and that in particular the points of attachment 5 and thus the vertices 9 remain substantially fixed relative to the center of the ferrule 1 during this hunting.
  • the center of gravity of the ferrule 1 remains constant during the driving of the shell 1 on the balance shaft 3 but also the point 7 of attachment of the spiral to the ferrule 1. This improves the isochronism of the balance- spiral.
  • the sides 8 of the flexible structure 2 have a variable thickness in the plane of the ferrule.
  • this thickness has maxima ep0, ep1 and ep2 respectively at the center and at the two ends of each side 8 and the minima ep3 and ep4 at mid-distance between the center and the two ends of each side 8, respectively .
  • the maxima ep0, ep1 and ep2 are equal to each other and the minima ep3 and ep4 are equal to each other, as illustrated in the figure.
  • This variation in thickness of the sides 8 of the flexible structure 2 makes it possible to better distribute the stress exerted by the balance shaft 3 along each of said sides.
  • the thickness (ep0, ep1 and ep2) is large; which locally increases the resistance of the sides 8 and reduces the stress experienced by the latter, and where the sides 8 are subjected to a stress of small intensity or zero intensity, namely mid-distance between their center and their two ends respectively, the thickness (ep3 and ep4) is small, which promotes the deformation (or arrow) of the sides 8 by the balance shaft 3.
  • the sides 8 for example a greater force than in the case of the ferrule according to EP 1 513 029 for the same deformation (or arrow) of said sides (with a thickness ep0 ep1, ep2 greater than the thickness of the sides of the flexible structure of the shell according to EP 1 513,029), to increase the force e of clamping of the balance shaft, or a greater deformation than in the case of the shell according to EP 1 513 029 for the same force exerted by the balance shaft (with a thickness ep0, ep1, ep2 equal to 1 thickness of the sides of the flexible structure of the ferrule according to EP 1 513 029), to make the ferrule less sensitive to manufacturing tolerances.
  • Intermediate cases are of course also possible in which both the clamping force and the deformation are increased relative to the ferrule according to EP 1 513 029.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Clamps And Clips (AREA)
EP05018335A 2004-08-31 2005-08-24 Spiralrolle für Uhren Active EP1637940B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01426/04A CH698081B1 (fr) 2003-09-02 2004-08-31 Virole d'horlogerie, ensemble virole-spiral et balancier-spiral.

Publications (3)

Publication Number Publication Date
EP1637940A2 true EP1637940A2 (de) 2006-03-22
EP1637940A3 EP1637940A3 (de) 2010-08-04
EP1637940B1 EP1637940B1 (de) 2011-07-20

Family

ID=35506579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05018335A Active EP1637940B1 (de) 2004-08-31 2005-08-24 Spiralrolle für Uhren

Country Status (2)

Country Link
EP (1) EP1637940B1 (de)
AT (1) ATE517374T1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826635A1 (de) * 2006-02-24 2007-08-29 Patek Philippe S.A. Elastisches Befestigungsorgan für Uhren
EP1857891A1 (de) * 2006-05-17 2007-11-21 Patek Philippe Sa Spiralfeder-Spiralrollegesamtheit für ein Uhrwerk
EP1868045A1 (de) * 2006-06-12 2007-12-19 Patek Philippe S.A. Spiralrolle für Uhr
CN102537026A (zh) * 2010-10-15 2012-07-04 Eta瑞士钟表制造股份有限公司 包括无塑性区的部件的组件
EP2916177A1 (de) * 2014-03-05 2015-09-09 Nivarox-FAR S.A. Spirale, die mit einer Federscheibe gesichert werden muss
EP3401740A1 (de) * 2017-05-12 2018-11-14 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung
WO2020126616A1 (fr) * 2018-12-17 2020-06-25 Nivarox-Far S.A. Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support
RU2760638C2 (ru) * 2016-10-13 2021-11-29 Ниварокс-Фар С.А. Балансная пружина, закрепляемая упругой шайбой
KR102673425B1 (ko) 2018-12-17 2024-06-07 니바록스-파 에스.에이. 타임피스 컴포넌트를 지지 요소에 부착하기 위한 탄성 유지 부재

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1513029A1 (de) 2003-09-02 2005-03-09 Patek Philippe Sa Spiralrolle für Uhrwerk

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH252387A (fr) * 1945-05-15 1947-12-31 Marti Fritz Virole pour fixation instantanée d'un spiral de balancier.
CH1583371A4 (de) * 1971-02-10 1973-08-31
EP1302821A3 (de) * 2001-10-10 2010-05-05 Franck Muller-Watchland SA Spiralfeder für Zeitmessgerät
EP1445670A1 (de) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
EP1584994B1 (de) * 2004-04-06 2009-01-21 Nivarox-FAR S.A. Spiralrolle ohne Deformation des Fixierungsradius der Spiralfeder und Herstellungsverfahren derartige Spiralrolle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1513029A1 (de) 2003-09-02 2005-03-09 Patek Philippe Sa Spiralrolle für Uhrwerk

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826635A1 (de) * 2006-02-24 2007-08-29 Patek Philippe S.A. Elastisches Befestigungsorgan für Uhren
EP1857891A1 (de) * 2006-05-17 2007-11-21 Patek Philippe Sa Spiralfeder-Spiralrollegesamtheit für ein Uhrwerk
WO2007132306A2 (fr) * 2006-05-17 2007-11-22 Patek, Philippe Sa Ensemble spiral-virole pour mouvement d'horlogerie
WO2007132306A3 (fr) * 2006-05-17 2008-04-17 Patek Philippe Sa Ensemble spiral-virole pour mouvement d'horlogerie
US7758237B2 (en) 2006-05-17 2010-07-20 Patek Philippe Sa Geneve Spiral/collet assembly for a horological movement
EP1868045A1 (de) * 2006-06-12 2007-12-19 Patek Philippe S.A. Spiralrolle für Uhr
CN102537026A (zh) * 2010-10-15 2012-07-04 Eta瑞士钟表制造股份有限公司 包括无塑性区的部件的组件
CN102537026B (zh) * 2010-10-15 2015-04-01 Eta瑞士钟表制造股份有限公司 包括无塑性区的部件的组件
TWI580633B (zh) * 2010-10-15 2017-05-01 伊塔瑞士鐘錶製造公司 無塑膠部件之組件，包括該組件之時計以及將構件組裝至部件內的方法
EP2916177A1 (de) * 2014-03-05 2015-09-09 Nivarox-FAR S.A. Spirale, die mit einer Federscheibe gesichert werden muss
RU2760638C2 (ru) * 2016-10-13 2021-11-29 Ниварокс-Фар С.А. Балансная пружина, закрепляемая упругой шайбой
EP3401740A1 (de) * 2017-05-12 2018-11-14 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung
WO2020126616A1 (fr) * 2018-12-17 2020-06-25 Nivarox-Far S.A. Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support
JP2022511884A (ja) * 2018-12-17 2022-02-01 ニヴァロックス－ファー ソシエテ アノニム 時計構成部品を支持要素に留めるための弾性固定器官
KR102673425B1 (ko) 2018-12-17 2024-06-07 니바록스-파 에스.에이. 타임피스 컴포넌트를 지지 요소에 부착하기 위한 탄성 유지 부재

Also Published As

Publication number Publication date
ATE517374T1 (de) 2011-08-15
EP1637940B1 (de) 2011-07-20
EP1637940A3 (de) 2010-08-04

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