EP2985659B1 - Spirale, die mit einer federscheibe gesichert werden muss - Google Patents

Spirale, die mit einer federscheibe gesichert werden muss Download PDF

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Publication number
EP2985659B1
EP2985659B1 EP15176591.4A EP15176591A EP2985659B1 EP 2985659 B1 EP2985659 B1 EP 2985659B1 EP 15176591 A EP15176591 A EP 15176591A EP 2985659 B1 EP2985659 B1 EP 2985659B1
Authority
EP
European Patent Office
Prior art keywords
resonator
balance spring
hairspring
washer
strip
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
EP15176591.4A
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English (en)
French (fr)
Other versions
EP2985659A2 (de
EP2985659A3 (de
Inventor
Marc Stranczl
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox 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 Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to EP15176591.4A priority Critical patent/EP2985659B1/de
Publication of EP2985659A2 publication Critical patent/EP2985659A2/de
Publication of EP2985659A3 publication Critical patent/EP2985659A3/de
Application granted granted Critical
Publication of EP2985659B1 publication Critical patent/EP2985659B1/de
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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
    • 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
    • G04B17/04—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
    • G04B17/32—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
    • 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
    • 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
    • G04B99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the invention relates to a resonator whose hairspring is suitable for an assembly system comprising a hairspring blocked elastically on an axis by a washer.
  • the object of the present invention is to overcome all or part of the drawbacks mentioned above by proposing a resonator with a hairspring, the monobloc ferrule of which is adapted to be mounted using the above-mentioned assembly system.
  • the invention relates to a resonator for a timepiece comprising an axis on which are adjusted a balance and a hairspring characterized in that the hairspring comprise a blade wound on itself according to several turns, the turn internal having come in shape with a ferrule comprising a strip extending substantially in the form of a polygon and comprising, at each of the vertices of said polygon, a bulge extending radially towards the internal turn, and in that the resonator further comprises an elastic washer which mainly clamps the hairspring by pinching at the tops of the strip of said polygon by letting the bulges protrude from the side of the washer.
  • the external contour is optimized so that the elastic washer mainly clamps the hairspring at the level of the tops of the band of its ferrule. Indeed, even if the bulges are not pinched by the washer, its two substantially parallel walls oriented substantially orthogonally to the peripheral wall of the washer advantageously avoid scratches.
  • the invention relates to a hairspring, the monobloc ferrule of which is adapted to one intended for a part whose material does not include a usable plastic area, that is to say with a very limited plastic area. , with a member comprising another type of material.
  • this assembly is made necessary by the growing share held by fragile materials such as those based on silicon such as monocrystalline (or polycrystalline) doped or not, silicon oxide such as quartz or silica , monocrystalline or polycrystalline corundum or more generally alumina, silicon nitride and silicon carbide.
  • the hairspring 1 comprises a blade 3 wound on itself according to several turns, the internal turn P I having come in shape with a ferrule 5, 25, 45, 65 comprising a strip 7, 27, 47, 67 extending substantially in the form of a polygon.
  • the strip 7, 27, 47, 67 comprises a polygon in the shape of a triangle or a diamond of width L 1 , L 2 , L 3 , L 4 , L 5 , L 6 , L 7 , L 8 , substantially constant.
  • the strip 7, 27, 47, 67 comprises, at each of the vertices of the polygon, a bulge 2, 4, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68 of respective widths L ' 2 , L' 4 , L ' 6 , L' 8 , extending radially towards the internal coil P I , in order to form the parts S 1 , S 2 , S 3 , S 4 of the outer contour of the shell 5, 25, 45, 65 which are furthest from the center C of the shell 5, 25, 45, 65, the center C being formed by the center of the circle inscribed in the opening of the shell 5 , 25, 45, 65.
  • the attachment point S 1 between the internal turn P I and the shell 5, 45, 65 is located on a 2, 52, 72 of the bulges 2, 4, 8, 42, 44, 48, 62, 64, 68 of the shell 5, 45, 65. It is also noted that the shell 5, 45, 65 is symmetrical with respect to the axis passing through the center C of the shell 5, 45, 65 and the attachment point S 1 .
  • the distance between the center C of the shell 5, 45, 65 and the end S 1 , S 2 , S 3 of each bulge 2, 4, 8, 42, 44, 48, 62 , 64, 68 is substantially constant in order to offer an external contour at the level of each bulge 2, 4, 8, 42, 44, 48, 62, 64, 68 which has two walls 2 1 -2 2 , 4 1 -4 2 , 8 1 -8 2 , 42 1 -42 2 , 44 1 -44 2 , 48 1 -48 2 , 62 1 -62 2 , 64 1 -64 2 , 68 1 -68 2 extending axially and substantially parallel between them but also parallel to the segment formed between the center C of the shell and the end S 1 , S 2 , S 3 of each bulge 2, 4, 8, 42, 44, 48, 62, 64, 68 associated .
  • the distance between the two walls 2 1 -2 2 of the bulge 2 is less than that of the walls 4 1 -4 2 , 8 1 -8 2 respectively of the bulges 4 and 8 while at figures 8 and 9 , the distances between the two walls 42 1 -42 2 , 44 1 -44 2 , 48 1 -48 2 , 62 1 -62 2 , 64 1 -64 2 , 68 1 -68 2 respectively bulges 42, 44, 48 , 62, 64, 68 are substantially constant.
  • the strip 7, 27, 47, 67 is curved towards the center C of the shell 5, 25, 45, 65 between each vertex of the polygon in order to form at least three tightening points Q 1 , Q 2 , Q 3 , Q 4 arranged to fit on an axis 11, 11 '.
  • the strip 47 is more curved than the strips 7, 27, 67 respectively of the figures 3 , 9 and 10 .
  • the strip 7, 27 further comprises a thickening 2 ', 22' of width L " 2 extending radially from the internal wall of the strip 7, 27 towards the center C of the shell. 5, 25 at the top of the triangle comprising the attachment point S 1 in order to avoid displacement of the attachment point S 1 during a deformation F 1 of the strip 7, 27 caused by the reception of the axis 11, 11 ′ of larger cross section than the opening between the clamping points Q 1 , Q 2 , Q 3 , Q 4.
  • the strip 47, 67 does not include such thickening. It is therefore understood that the latter does not constitute an essential characteristic of the invention.
  • the strip 7, 47, 67 comprises, on the portion 12, 52, 72 between two vertices of the triangle which has the bulges 4-8, 44-48 and 64-68 and which is opposite to the point d 'attachment S 1 relative to the center C of the shell 5, 45, 65, a fourth bulge 6, 46, 66 of width L' 6 extending radially towards the internal turn P I in order to position the center of gravity of the ferrule 5, 45, 65 in the center C of the opening of the ferrule 5, 45, 65.
  • the thickening 2 ', 22' in order to avoid displacement of the attachment point S 1 during a deformation F 1 of the strip 7, 27, 47, 67, it is also possible to vary the width of the strip 7, 27, 47, 67 between the vertices of the polygon, that is to say have a different width or a non-constant width.
  • the figure 9 shows an example of the non-constant width.
  • the ferrule 65 has an allowance of approximately 10% located at the widths L 1 and L 3 , that is to say at the clamping points Q 1 , Q 2 , Q 3 , relative to the rest of the strip 67, that is to say with respect to the widths L 2 , L 4 , L 5 , L 6 , L 7 and L 8 .
  • the modification of the rigidity of the latter to keep the center of the balance spring 1 coaxial with its axis 11 can be done by modifying the thickness of the strip 7, 27, 47, 67 and / or by modifying the length of strip 7, 27, 47, 67 between the vertices of the polygon and / or by playing on the width of the bulges 2, 4, 6, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68 or thickenings 2 ', 22' on the strip 7, 27, 47, 67 and / or cutting the tape 7, 27, 47, 67.
  • the hairspring 1 can thus be formed in a nonlimiting manner from a silicon-based material such as from doped or not doped monocrystalline silicon, doped or not doped polycrystalline silicon, doped or not doped monocrystalline silicon and coated with silicon oxide, doped or undoped polycrystalline silicon and coated with silicon oxide, silicon oxide, quartz, silica, silicon nitride, silicon nitride coated with silicon oxide silicon, silicon carbide or silicon carbide coated with a silicon oxide, without risk that the material is broken by a washer 10,10 'during elastic tightening.
  • the hairspring 1 can thus be formed in a nonlimiting manner from monocrystalline corundum, polycrystalline corundum or alumina.
  • the washer 10 is a perfect ring, that is to say a disc with an opening 18, comprising an upper face 19 and a lower face 16 which can be used to tighten the hairspring 1.
  • the washer 10 edges may have bevels 15 intended to prevent scratches and burrs during manufacture.
  • the washer 10 ' is a ring, that is to say a disc with an opening 18', comprising an upper face 19 'and a lower face 16'.
  • the upper face 19 ' communicates with the opening 18' using a conical surface 17 'and is used to tighten the hairspring 1.
  • the edges of the washer 10 ′ may include bevels 15 ′ intended to prevent scratches.
  • the hairspring 1 comprises an internal turn P I along a curve of the Grossmann type and an external turn P E partially thickened in order to improve the concentricity of its contraction and of its expansion.
  • the hairspring 1 also has a resistant and impermeable layer against humidity in order to make it less sensitive to climatic variations.
  • the invention also relates to a resonator 21, 21 'for a timepiece comprising an axis 11, 11' on which is adjusted a balance 13, 13 'and the hairspring 1 according to one of the preceding variants.
  • the resonator 21 comprises the hairspring 1 which is adjusted on the axis 11 between an elastic washer 10 and the balance 13. While, in a second embodiment illustrated in figure 7 , the resonator 21 'comprises the hairspring 1 which is adjusted on the axis 11' between an elastic washer 10 and a bearing 14 'of the axis 11'.
  • the two alternatives of elastic washer 10, 10 ′ can be used.
  • the washer 10, 10 ′ mainly clamps the hairspring 1 at level F 2 of the tops of the strip 7, 27, 47, 67 of its shell 5, 25, 45, 65 but also on the fourth bulge 6, 26, 46 , 66.
  • the present invention is not limited to the example illustrated but is capable of various variants and modifications which will appear to those skilled in the art.
  • the shapes and dimensions of hairspring 1 cannot be limited to the examples of Figures 1 to 10 .
  • the shapes and dimensions of the hairspring 1 may differ in particular at the level of the bulges 2, 4, 6, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68 and / or the strip 7, 27, 47, 67 and / or the thickening 2 ', 22' and / or the bending of the strip 7, 27, 47, 67.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Springs (AREA)
  • Adornments (AREA)
  • Dry Shavers And Clippers (AREA)
  • Prostheses (AREA)
  • Toys (AREA)

Claims (9)

  1. Resonator (21, 21') für eine Uhr, umfassend eine Achse (11, 11'), auf die eine Unruh (13, 13') und eine Spiralfeder (1) ausgerichtet sind, umfassend ein in mehreren Windungen (PI, PE) auf sich selbst gewickeltes Blatt (3), wobei die innere Windung (PI) an eine Spiralrolle (5, 25, 45, 65) angeformt ist, die ein Band (7, 27, 47, 67) aufweist, dass sich im Wesentlichen in Form eines Polygons erstreckt, wobei das Band (7, 27, 47, 67) an jeder der Ecken des Polygons eine Ausbauchung (2, 4, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68) aufweist, die sich radial zu der inneren Windung (PI) erstreckt, dadurch gekennzeichnet, dass der Resonator ferner eine elastische Scheibe (10, 10') umfasst, die die Spiralfeder einklemmt durch Ausüben einer mechanischen Spannung durch Klemmen_hauptsächlich auf Höhe der Ecken des Bandes (7, 27, 47, 67) des Polygons,_wobei die Ausbauchungen (2, 4, 8, 42, 44, 48, 62, 64, 68) von der Seite der Scheibe (10, 10') vorstehen.
  2. Resonator (21, 21') nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass jede Ausbauchung (2, 4, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68) zwei Wände (21-22, 41-42, 81-82, 421-422, 441-442, 481-482, 621-622, 641-642, 681-682) umfasst, die sich im Wesentlichen axial und parallel zueinander zu dem Segment erstrecken, das zwischen der Mitte (C) der Spiralrolle (5, 25, 45, 65) und dem Ende (S1, S2, S3, S4) der Ausbauchung (2, 4, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68) gebildet ist.
  3. Resonator (21, 21') nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abstände zwischen den zwei Wänden (21-22, 41-42, 81-82, 421-422, 441-442, 481-482, 621-622, 641-642, 681-682) jeder Ausbauchung (2, 4, 8, 22, 24, 26, 28, 42, 44, 48, 62, 64, 68) im Wesentlichen konstant sind.
  4. Resonator (21, 21') nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich das Band (7, 27, 47, 67) der Spiralrolle (5, 25, 45, 65) im Wesentlichen in Form eines Dreiecks, eines Vierecks, eines Fünfecks oder eines Sechsecks erstreckt.
  5. Resonator (21, 21') nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spiralfeder (1) eine innere Windung (PI) längs einer Kurve des Grossmann-Typs und eine äußere Windung (PE), die teilweise verdickt ist, umfasst.
  6. Resonator (21, 21') nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spiralfeder (1) auf Siliziumbasis hergestellt ist.
  7. Resonator (21, 21') nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Spiralfeder ferner eine Schicht aufweist, die verschleißbeständig und feuchtigkeitsundurchlässig ist, um die Spiralfeder (1) gegenüber klimatischen Veränderungen weniger empfindlich zu machen.
  8. Resonator (21') nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spiralfeder (1) auf eine Achse zwischen einer elastischen Scheibe (10, 10') und einem Bereich (14') der Achse (11') ausgerichtet ist.
  9. Resonator (21, 21') nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Spiralfeder (1) auf die Achse (11) zwischen einer elastischen Scheibe (10, 10') und der Unruh (13) ausgerichtet ist.
EP15176591.4A 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss Active EP2985659B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15176591.4A EP2985659B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14157858 2014-03-05
EP15154081.2A EP2916177B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer Federscheibe gesichert werden muss
EP15176591.4A EP2985659B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15154081.2A Division-Into EP2916177B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer Federscheibe gesichert werden muss
EP15154081.2A Division EP2916177B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer Federscheibe gesichert werden muss

Publications (3)

Publication Number Publication Date
EP2985659A2 EP2985659A2 (de) 2016-02-17
EP2985659A3 EP2985659A3 (de) 2016-03-23
EP2985659B1 true EP2985659B1 (de) 2020-04-29

Family

ID=50272301

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Application Number Title Priority Date Filing Date
EP15154081.2A Active EP2916177B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer Federscheibe gesichert werden muss
EP16172457.0A Withdrawn EP3098669A1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss
EP15176591.4A Active EP2985659B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss

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EP15154081.2A Active EP2916177B1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer Federscheibe gesichert werden muss
EP16172457.0A Withdrawn EP3098669A1 (de) 2014-03-05 2015-02-06 Spirale, die mit einer federscheibe gesichert werden muss

Country Status (7)

Country Link
US (1) US9983548B2 (de)
EP (3) EP2916177B1 (de)
JP (1) JP6026576B2 (de)
CN (1) CN104898398B (de)
HK (1) HK1214658A1 (de)
RU (1) RU2681226C2 (de)
TW (1) TWI659278B (de)

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EP3309625B1 (de) 2016-10-13 2020-07-29 Nivarox-FAR S.A. Spirale zur befestigung mit einer federscheibe
EP3339978A1 (de) * 2016-12-20 2018-06-27 The Swatch Group Research and Development Ltd Uhrwerkskomponente aus verbundwerkstoff
EP3401740B1 (de) * 2017-05-12 2021-03-31 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung
JP6566432B1 (ja) * 2018-06-07 2019-08-28 セイコーインスツル株式会社 定トルク機構、時計用ムーブメント及び時計
EP3627235A1 (de) * 2018-09-21 2020-03-25 Nivarox-FAR S.A. Elastisches halterungsorgan für die befestigung einer uhrenkomponente auf einem halteelement
EP3627234A1 (de) 2018-09-21 2020-03-25 Nivarox-FAR S.A. Elastisches halterungsorgan für die befestigung einer uhrenkomponente auf einem halteelement
EP3627238A1 (de) * 2018-09-21 2020-03-25 Nivarox-FAR S.A. Elastisches halterungsorgan für die befestigung einer uhrenkomponente auf einem halteelement
EP3667433B1 (de) * 2018-12-12 2023-02-01 Nivarox-FAR S.A. Spiralfeder und ihr herstellungsverfahren
EP3736640B1 (de) * 2019-05-07 2022-12-21 Nivarox-FAR S.A. Unruh für uhrwerk

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Also Published As

Publication number Publication date
EP2916177B1 (de) 2018-11-07
CN104898398A (zh) 2015-09-09
EP2985659A2 (de) 2016-02-17
CN104898398B (zh) 2017-09-15
EP2916177A1 (de) 2015-09-09
TWI659278B (zh) 2019-05-11
HK1214658A1 (zh) 2016-07-29
RU2015107678A (ru) 2016-09-27
US20150253733A1 (en) 2015-09-10
EP3098669A1 (de) 2016-11-30
EP2985659A3 (de) 2016-03-23
RU2015107678A3 (de) 2018-10-23
JP6026576B2 (ja) 2016-11-16
RU2681226C2 (ru) 2019-03-05
JP2015169656A (ja) 2015-09-28
US9983548B2 (en) 2018-05-29
TW201541203A (zh) 2015-11-01

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