EP2884347A1 - Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen - Google Patents

Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen Download PDF

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Publication number
EP2884347A1
EP2884347A1 EP13197321.6A EP13197321A EP2884347A1 EP 2884347 A1 EP2884347 A1 EP 2884347A1 EP 13197321 A EP13197321 A EP 13197321A EP 2884347 A1 EP2884347 A1 EP 2884347A1
Authority
EP
European Patent Office
Prior art keywords
spiral
turn
stops
blade
face
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.)
Withdrawn
Application number
EP13197321.6A
Other languages
English (en)
French (fr)
Inventor
Thierry Conus
Jean-Luc Helfer
Andrés Cabezas Jurin
Patrick Gasser
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP13197321.6A priority Critical patent/EP2884347A1/de
Priority to US15/038,577 priority patent/US9645549B2/en
Priority to PCT/EP2014/074976 priority patent/WO2015090815A2/fr
Priority to EP14800048.2A priority patent/EP3084529B1/de
Priority to CN201480068093.XA priority patent/CN105829977B/zh
Priority to JP2016534916A priority patent/JP6177439B2/ja
Priority to CN201420801906.9U priority patent/CN204496165U/zh
Publication of EP2884347A1 publication Critical patent/EP2884347A1/de
Withdrawn legal-status Critical Current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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/066—Manufacture of the spiral spring
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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

Definitions

  • the invention relates to a hairspring intended to reduce the risk of bonding between its turns in order to improve the operation of a resonator in which said hairspring is used.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an alternative to the usual spiral which avoids the gluing of the turns together.
  • the invention relates to a spiral comprising a polygonal section blade wound on itself according to a plurality of turns, characterized in that at least one coil of the spiral comprises an anti-approach device of turns comprising at least two stops mounted on the same face and projecting from the thickness of said at least one turn of the blade, each of said at least two stops being arranged to come into contact with the face facing another turn of the blade. blade preventing the other turn to touch said at least one turn during a shock.
  • the spiral with anti-approximation device of turns makes it possible to prevent geometrically the risk of bonding between turns by limiting the contact surface to said at least two stops.
  • the invention also relates to a timepiece characterized in that it comprises at least one hairspring according to one of the preceding variants.
  • the present invention relates to a spiral for the field of watchmaking. More specifically, the hairspring is intended to be mounted in a timepiece such as, for example, in cooperation with a beam to form a pendulum resonator - spiral forming the regulating member of the timepiece.
  • coil splices could be generated with the use of crystalline silicon spirals. Indeed, the heights of the turns facing each other are so smooth that adhesion can be generated simply by bringing two turns together, for example, by an impact on the timepiece. This adhesion can be further increased by contaminating the hairspring with impurities or lubricant during manufacture or wearing.
  • the hairspring 1, 11, 21, 31, 41, 51, 61, 71 according to the invention comprising a blade 3, 13, 23, 33, 43, 53, 63, 73 of length L, height H and thickness E forming a polygonal section, preferably rectangular, formed by the height H and the thickness E.
  • the blade 3 is wound on itself in several turns. It is therefore understood that the face formed according to the height of the blade 3, 13, 23, 33, 43, 53, 63, 73 of a first turn vis-a-vis the opposite face of the blade on the turn immediately consecutive.
  • At least one turn 8, 10 of the spiral 1, 11, 21, 31, 41, 51, 61, 71 comprises a device 5, 15, 25 , 35, 45, 55, 65, 75 anti-approximation of turns comprising at least two stops 7, 7 ', 17, 27, 37, 47, 57, 67, 77 mounted on the same face and projecting from the thickness E of said at least one turn of the blade, each of said at least two stops 7, 7 ', 17, 27, 37, 47, 57, 67, 77 being arranged to come into contact with the facing face.
  • another turn of the blade 3, 13, 23, 33, 43, 53, 63, 73 by preventing the other turn to touch said at least one turn during an impact.
  • FIG 1 is a partial top view of an example of a device 5 anti-approximation of turns.
  • a first turn 8 formed by the blade 3 extends along a first radius R 1 relative to the center of the hairspring 1.
  • a second turn 10 formed by the blade 3 extends along a second radius R 2 relative to the center of the hairspring 1.
  • the anti-approach device 8, 10 prevents the second turn 10 from touching the first turn 8.
  • the second turn 10 is represented by the turn 10 'in broken lines. It can be seen that the second turn 10 'abnormally deformed by a shock comes into contact with said at least two stops 7, 7 'so that the second turn 10' abnormally deformed remains at a safety distance S with respect to the first turn 8.
  • the spiral 11 comprises a blade 13 provided with a device 15 anti-approximation of turns of which said at least two abutments 17 protrude from the thickness E on only a portion of the height H of the blade 13.
  • this first example is in no way limiting as to the height and / or relative position of said at least two stops 17 with respect to the height H of the blade 13.
  • the device 5 anti-approximation of turns could equally include said at least two abutments 7 protruding from the thickness E over the entire height H of the blade 3 of the spiral 1.
  • FIG. 1 to 3 disclose said at least two stops 7, 7 ', 17 each in the form of a triangular prism so that an edge 9, 19 is vis-à-vis with the opposite face of another turn. It is easily understood that said at least two stops 7, 7 ', 17, 27, 37, 47, 57, 67, 77 can not be limited to such a triangular prismatic shape.
  • said at least two abutments 7, 7 ', 17, 27, 37, 47, 57, 67, 77 may be of different shape as, for example, in pentagonal prismatic form, with an edge 9, 9' , 19, 29, 39, 49, 59, 69, 79, or partially recessed, or of different arrangement as, for example, mounted on the same face of the spiral differently.
  • the first embodiment of the figure 4 is the one already illustrated at Figures 1 to 3 . It comprises a spiral 1 formed by a blade 3 provided with a device 5 anti-approximation of turns comprising said at least two abutments 7, 7 'in the form of a solid triangular prism directly protruding from the thickness E of the blade 3 with a pointed ridge 9 facing the turn immediately consecutively.
  • the second embodiment of the figure 5 is close to that of the figure 4 . Indeed, it comprises a hairspring 21 formed by a blade 23 provided with a device 25 anti-approximation of turns comprising said at least two stops 27 in the form of a solid triangular prism directly protruding from the thickness E of the blade 23.
  • the edge 29, which faces the turn immediately consecutive is rounded to provide a lower contact pressure during an impact.
  • the third embodiment of the figure 6 is close to that of the figure 5 . Indeed, it comprises a spiral 31 formed by a blade 33 provided with a device 35 anti-approximation of turns comprising said at least two stops in the form of a triangular prism directly protruding from the thickness E of the blade 33 with a rounded edge 9 which faces the turn immediately consecutive.
  • said at least two stops 37 are at least partially recessed in order to adjust the effect of their mass on the unbalance of the hairspring 31.
  • the fourth embodiment of the figure 7 comprises a spiral 41 formed by a blade 43 provided with a device 45 anti-approximation of turns comprising said at least two stops 47 as a solid pentagonal prism directly protruding from the thickness E of the blade 43 with a sharp edge 49 who faces the turn immediately consecutively.
  • the fifth embodiment of the figure 8 is close to that of the figure 7 . Indeed, it comprises a hairspring 51 formed by a blade 53 provided with a device 55 anti-approach of turns comprising said at least two stops 57 in the form of a pentagonal prism directly protruding from the thickness E of the blade 53.
  • the edge 59 which faces the turn immediately consecutive is rounded and said at least two stops 57 are at least partially hollowed out.
  • the sixth embodiment of the figure 9 is close to that of the figure 4 . Indeed, it comprises a spiral 61 formed by a blade 63 provided with a device 65 anti-approximation of turns comprising said at least two stops 67 as a solid triangular prism directly protruding from the thickness E of the blade 63 with a sharp ridge 69 facing the turn immediately consecutively.
  • said at least two stops 67 are mounted on the same face of the hairspring using an intermediate base 68 to limit the increase in local stiffness induced by the localized increase of the thickness E on the blade 63.
  • the seventh embodiment of the figure 10 is close to that of the figure 9 .
  • it comprises a hairspring 71 formed by a blade 73 provided with a device 75 anti-approximation of turns comprising said at least two stops 77 in the form of triangular prism protruding from the thickness E of the blade 73 by means of an intermediate base 78.
  • the edge 79 which faces the turn immediately consecutive is rounded and said at least two stops 77 are at least partially hollowed out.
  • the hairspring 1, 11, 21, 31, 41, 51, 61, 71 may also comprise an inner turn which is integral with a ferrule arranged to be fixed to an axis as illustrated in the example of FIG. figure 11 .
  • the substantially clover-shaped ferrule 4 has a hole 6 for, for example, to receive a balance shaft.
  • the hairspring 1, 11, 21, 31, 41, 51, 61, 71 may be one-piece, that is to say that the blade 3, 13, 23, 33 , 43, 53, 63, 73 is formed without discontinuity of material.
  • Such a spiral 1, 11, 21, 31, 41, 51, 61, 71 may be formed based on a material comprising silicon, that is to say, for example, silicon monocrystalline, silicon polycrystalline, doped monocrystalline silicon, doped polycrystalline silicon, silicon carbide doped or not doped silicon nitride or not doped silicon oxide or not such as quartz or silica. Indeed, the anisotropic etching of such materials can be carried out wet or dry.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Springs (AREA)
  • Toys (AREA)
  • Brushes (AREA)
  • Catching Or Destruction (AREA)
  • Stringed Musical Instruments (AREA)
EP13197321.6A 2013-12-16 2013-12-16 Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen Withdrawn EP2884347A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP13197321.6A EP2884347A1 (de) 2013-12-16 2013-12-16 Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen
US15/038,577 US9645549B2 (en) 2013-12-16 2014-11-19 Balance spring with coil spacer device
PCT/EP2014/074976 WO2015090815A2 (fr) 2013-12-16 2014-11-19 Spiral avec dispositif anti-rapprochement de spires
EP14800048.2A EP3084529B1 (de) 2013-12-16 2014-11-19 Spiralfeder mit einer vorrichtung zur verhinderung der zu nahen bewegung von windungen
CN201480068093.XA CN105829977B (zh) 2013-12-16 2014-11-19 具有线圈间隔装置的游丝
JP2016534916A JP6177439B2 (ja) 2013-12-16 2014-11-19 コイル巻きスペーサーデバイスを備えたバランスばね
CN201420801906.9U CN204496165U (zh) 2013-12-16 2014-12-16 游丝和包括该游丝的钟表

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13197321.6A EP2884347A1 (de) 2013-12-16 2013-12-16 Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen

Publications (1)

Publication Number Publication Date
EP2884347A1 true EP2884347A1 (de) 2015-06-17

Family

ID=49759187

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13197321.6A Withdrawn EP2884347A1 (de) 2013-12-16 2013-12-16 Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen
EP14800048.2A Active EP3084529B1 (de) 2013-12-16 2014-11-19 Spiralfeder mit einer vorrichtung zur verhinderung der zu nahen bewegung von windungen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14800048.2A Active EP3084529B1 (de) 2013-12-16 2014-11-19 Spiralfeder mit einer vorrichtung zur verhinderung der zu nahen bewegung von windungen

Country Status (5)

Country Link
US (1) US9645549B2 (de)
EP (2) EP2884347A1 (de)
JP (1) JP6177439B2 (de)
CN (2) CN105829977B (de)
WO (1) WO2015090815A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2884347A1 (de) * 2013-12-16 2015-06-17 ETA SA Manufacture Horlogère Suisse Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen
EP3159746B1 (de) * 2015-10-19 2018-06-06 Rolex Sa Hochdotierte siliziumfeder für uhr
EP3309625B1 (de) * 2016-10-13 2020-07-29 Nivarox-FAR S.A. Spirale zur befestigung mit einer federscheibe
CH711828A2 (fr) * 2017-02-22 2017-05-31 Csem Centre Suisse D'electronique Et De Microtechnique Sa - Rech Et Développement Pièce d'horlogerie micromécanique multi-niveaux et son procédé de fabrication.
CN108597768B (zh) * 2018-06-11 2020-06-30 国家电网有限公司 变压器油道结构、变压器绕组及变压器
EP3654111B1 (de) 2018-11-15 2022-02-16 Nivarox-FAR S.A. Verfahren zur messung des drehmoments einer spiralfeder einer uhr

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696687A (en) * 1971-03-25 1972-10-10 Ametek Inc Plastic hairspring
EP2407831A1 (de) * 2010-07-12 2012-01-18 Rolex Sa Spirale für Unruh-Oszillator einer Uhr, und ihr Herstellungsverfahren
EP2434353A1 (de) * 2010-09-28 2012-03-28 Montres Breguet SA Antischwingungsspirale für Uhrenhemmungen
EP2690508A1 (de) * 2012-07-26 2014-01-29 Nivarox-FAR S.A. Spiralfeder einer Uhr

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE307990T1 (de) * 2002-11-25 2005-11-15 Suisse Electronique Microtech Spiraluhrwerkfeder und verfahren zu deren herstellung
DE602006004055D1 (de) * 2005-06-28 2009-01-15 Eta Sa Mft Horlogere Suisse Verstärktes mikromechanisches teil
TWI438588B (zh) * 2006-03-24 2014-05-21 Eta Sa Mft Horlogere Suisse 由絕緣材料製成的微機械零件及其製造方法
EP2151722B8 (de) * 2008-07-29 2021-03-31 Rolex Sa Spiralfeder für Spiralfeder-Unruh-Resonator
EP2405312A1 (de) * 2010-07-09 2012-01-11 Montres Breguet S.A. Spiralfeder für Unruh mit zwei Stufen und unbeweglichem Massenzentrum
EP2613206B1 (de) * 2012-01-05 2022-05-11 Montres Breguet SA Spirale mit zwei Spiralfedern mit verbessertem Isochronismus
EP2884347A1 (de) * 2013-12-16 2015-06-17 ETA SA Manufacture Horlogère Suisse Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696687A (en) * 1971-03-25 1972-10-10 Ametek Inc Plastic hairspring
EP2407831A1 (de) * 2010-07-12 2012-01-18 Rolex Sa Spirale für Unruh-Oszillator einer Uhr, und ihr Herstellungsverfahren
EP2434353A1 (de) * 2010-09-28 2012-03-28 Montres Breguet SA Antischwingungsspirale für Uhrenhemmungen
EP2690508A1 (de) * 2012-07-26 2014-01-29 Nivarox-FAR S.A. Spiralfeder einer Uhr

Also Published As

Publication number Publication date
US9645549B2 (en) 2017-05-09
CN105829977A (zh) 2016-08-03
JP6177439B2 (ja) 2017-08-09
WO2015090815A2 (fr) 2015-06-25
CN204496165U (zh) 2015-07-22
EP3084529A2 (de) 2016-10-26
US20160299470A1 (en) 2016-10-13
WO2015090815A3 (fr) 2015-12-10
EP3084529B1 (de) 2019-01-30
CN105829977B (zh) 2019-06-21
JP2016538557A (ja) 2016-12-08

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