EP3037896B1 - Porte-piton demontable - Google Patents

Porte-piton demontable Download PDF

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Publication number
EP3037896B1
EP3037896B1 EP15198646.0A EP15198646A EP3037896B1 EP 3037896 B1 EP3037896 B1 EP 3037896B1 EP 15198646 A EP15198646 A EP 15198646A EP 3037896 B1 EP3037896 B1 EP 3037896B1
Authority
EP
European Patent Office
Prior art keywords
opening
stud
lug
holding
holding plate
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
EP15198646.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3037896A1 (fr
Inventor
Julien Christan
Laurent Kaelin
Ivan Villar
Thierry Conus
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 EP15198646.0A priority Critical patent/EP3037896B1/fr
Publication of EP3037896A1 publication Critical patent/EP3037896A1/fr
Application granted granted Critical
Publication of EP3037896B1 publication Critical patent/EP3037896B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/06—Supporting devices for clockworks or parts of time-pieces
    • 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
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/021—Regulator or adjustment devices; Indexing devices, e.g. raquettes adjusting the indexing device from the outside
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/04—Tools for setting springs

Definitions

  • a regulating member comprising a sprung balance device.
  • the inner end of the hairspring is fixed to a ferrule provided on the axis of pivoting of the balance.
  • a peg holder housing a pin in combination with a clamping screw for tightening the bolt against the portion of the hairspring engaged in the bolt carrier.
  • the peg carrier is conventionally attached to a cock also serving to fix one of the ends of the axis of the balance.
  • the manipulations to be performed with these various elements are delicate because access is restricted and the parts are very small.
  • the spiral clamping screw or peg holder it is common for the spiral clamping screw or peg holder to come loose, and / or be lost during handling such as adjusting the active length of the hairspring.
  • the object of the invention is to overcome the drawbacks of the prior art by proposing to provide a support or support assembly for a spiral watch spring which allows a simplified assembly or disassembly of the stud.
  • the first opening is circular, said pad having in the form of a cylindrical piece of which at least one zone of the outer wall has an outgrowth allowing the application of a stress on the deformable arm to decrease the size of the second opening.
  • the first opening and said stud have an elliptical shape, the main axis of said stud being angularly offset relative to the longitudinal axis of the base allowing the application of a stress on the deformable arm. to decrease the size of the second opening.
  • the first opening and said stud have an elliptical shape, the main axis of said first opening being angularly offset with respect to the longitudinal axis of the base allowing the application of a stress on the deformable arm to decrease the size of the second opening.
  • the base comprises a recess in which a shock absorber system is placed.
  • the recess is placed so that the central axis of the recess is coincident with the axis of the stud.
  • the stud comprises a recess in which a shock absorber system is placed.
  • the hole of the base is non-traversing, said base comprising a recess placed so that the central axis of the recess is coincident with the axis of the stud, in which a shock absorber system is placed.
  • said assembly further comprises a male interface arranged on the holding plate and a female interface arranged on said pad for fixing the holding plate to said pad.
  • said assembly further comprises a male interface arranged on the base and a female interface arranged on said pad for fixing the pad to said base.
  • the assembly further comprises a male interface arranged on the holding plate and a female interface arranged on said pad for fixing the pad to said base.
  • the male interface and the female interface are screw threads.
  • the female interface comprises in its thickness, at least one cavity formed by a clearance parallel to said central axis of the stud and opening relative to the lower surface of the stud, and secant with said first release and in contrast to the upper surface, a blind groove used for bayonet immobilization of the holding plate.
  • the female interface comprises in its thickness, at least one cavity formed by a clearance parallel to said central axis of the stud and opening relative to the upper surface of the stud, and secant with said first release and opposite the lower surface, a blind groove used for bayonet immobilization of the holding plate.
  • the holding assembly further comprises adjusting means comprising a gear wheel arranged on the balance bridge cooperating with a set of teeth arranged on the holding plate, said wheel being provided with a slot of so that a tool can allow the rotation of said toothed wheel causing the rotation of the holding plate.
  • the holding assembly further comprises adjusting means comprising a first notch arranged on the balance bridge and a second notch arranged on the holding plate, the first notch and the second notch being arranged so that a tool inserted into the first and second notches can rotate the holding plate relative to the balance bridge.
  • the present invention proceeds from the general idea of providing a support or support assembly of a spiral clock spring for mounting / dismounting of the simplest piton.
  • FIG. 1 In a first embodiment visible at the figure 1 is shown a schematic view of a holding or support assembly 1 a spiral spring clock according to a first embodiment.
  • This holding assembly 1 comprises a bolt carrier 3 arranged to be fixed to the balance bridge 5 also called cock or base, the latter comprises a longitudinal axis (D).
  • the holding assembly also comprises a pin 9 fixed on a turn of the spiral spring.
  • the bolt carrier 3 is used for fixing the stud to the cock.
  • the bolt carrier 3 consists of a retaining plate 32.
  • the pendulum bridge 5 comprises a stud 31 projecting.
  • This holding plate 32 is a plate pierced by an orifice 34.
  • the holding plate 32 further comprises a deformable beam 35 separating the orifice 34 in a first opening 34a and a second opening 34b.
  • the first opening 34b is the largest part and is arranged to cooperate with the pad 31. This means that the stud 31 is inserted into the first opening 34a.
  • the second opening 34b is used for the piton 9. Indeed, the pin 9 fits into the second opening 34b.
  • the shape of the stud 31 and that of the first opening 34a are such that, when the holding plate is rotated relative to said stud, it acts on the deformable beam 35. This deformation said beam allows to narrow the second opening 34b and thus to tighten the peak.
  • the first portion 34a is designed to have a perfectly circular shape, the second portion 34b being in the form of a curved groove.
  • the stud 31 is in the form of a piece of non-constant section. More particularly, the pad 31 will be made so that it is in the form of a substantially circular piece having a central axis C whose area has a distance between the center of the circle and the end of the stud 31 larger which allows to have a separate area as visible in the figure 3a .
  • This distinct zone will be used for the clamping of the pin 9. Indeed, by rotating the holding plate 32 relative to the stud 31, the distinct area of the stud 31 will come into contact with the deformable beam 35. Since the first aperture 34a is circular, the distinct area of the stud 31 exerts a stress on this deformable beam 35. This constraint thus deforms the beam 35 which narrows the second opening 34b. This narrowing causes a constraint exerted on the pin 9 to tighten it.
  • the plate 32 For mounting, it is done by mounting the plate 32 at the cock 5 by inserting the stud 31 in the first opening 34a of the holding plate 32.
  • the holding plate 32 can be mounted in its final angular position or not.
  • the stud 31 may be provided with a peripheral groove preventing the holding plate 32 from being detached.
  • the holding plate 32 In the case where the holding plate 32 is mounted in its final angular position, the holding plate 32 will be rotated by a certain angle in the clockwise or counterclockwise direction so that the distinct zone is no longer in contact with the deformable beam. 35. The stress applied by this distinct zone is thus removed and the second opening 34b resumes its rest size as visible at the figure 3b .
  • the pin 9 is then placed in the second opening 34b and the holding plate 32 is rotated relative to the stud 31 to narrow the second opening 34b and tighten the pin 9 on the holding plate 32 as visible in FIG. figure 3c .
  • the stud 31 may be designed as a circular piece provided with a projecting portion or an ovoid-shaped piece.
  • the first opening 34a is designed to have an elliptical shape, the second opening 34b being in the form of a curved groove.
  • a elliptical shape allows to have an elliptical stud 31.
  • Such an ellipse has a main axis called focal axis passing through the foci and a secondary axis perpendicular to the focal axis and passing to the center of the segment formed by the two focal points of said ellipse.
  • the stud 31 is in the form of a piece of section identical to that of the first opening 34a as visible in FIG. figure 4 .
  • the stud 31 is arranged so that its main axis extends parallel to the longitudinal axis of the cock (5) as visible in FIG. figure 4 . Therefore, when mounting the holding plate 32, the stud 31 is inserted into the first opening 34a. The result is that the holding plate 32 is in a position angularly offset relative to an alignment with the longitudinal axis of the cock 5. This is because when the plate 32 and the cock 5 are perfectly aligned, the stud 31 and the first opening 34a of the plate 32, which have an identical shape, are not confused and are angularly offset.
  • the bolt carrier 3 consists of a holding plate 302 and a stud 301.
  • the holding plate and the cock are here only one piece in which an orifice 304 is made.
  • the stud 301 is here a free piece cooperating with said holding plate.
  • the holding plate 302 further comprises a deformable beam 305 separating the orifice 304 into a first opening 304a and a second opening 304b.
  • the first opening 304b is the largest part and is arranged to cooperate with the stud 301. This means that the stud 301 is inserted into the first opening 304a.
  • the second opening 304b is used for the piton 9. Indeed, the stud 9 fits into the second opening 304b.
  • the shape of the stud 302 and that of the first opening 304a are such that, when the stud 302 is rotated relative to the holding plate, it acts on the deformable beam 305. deformation of said beam makes it possible to narrow the second opening 34b and thus to tighten the bolt 9.
  • the first opening 304a is designed to have a perfectly circular shape, the second opening 304b being in the form of a curved groove.
  • the stud 301 is in the form of a piece of non-constant section. More particularly, the stud 301 will be made so that it is in the form of a substantially circular piece whose area has a distance between the center of the circle and the end of the stud 301, which makes it possible to have a separate area.
  • This distinct zone will be used for the clamping of the pin 9. Indeed, by rotating the stud 301 with respect to the holding plate 302, the distinct zone of the stud 301 will come into contact with the deformable beam 305. Since the first opening 304a is circular, the distinct zone of the stud 301 exerts a stress on this deformable beam 305. This constraint thus deforms the beam 305 which narrows the second opening 304b. This narrowing causes a constraint exerted on the pin 9 to tighten it.
  • the stud 301 For mounting, it is done by mounting the stud 301 at the cock 5 by inserting it into the first opening 304a of the holding plate 302.
  • the stud 301 can be mounted in its angular position definitive or not. In the case where the stud 301 is mounted in its final angular position, the stud 301 will be rotated by a certain angle in the clockwise or counterclockwise direction so that the distinct zone is no longer in contact with the deformable beam 305. The constraint applied by this distinct zone is removed and the second opening 304b resumes its rest size allowing mounting of the peak 9.
  • the stud 9 is then placed in the second opening 304b and the stud 301 is rotated relative to the holding plate 302 to narrow the second opening 304b and tighten the stud 9 on the holding plate 302.
  • the stud 301 may be designed as a circular piece provided with a projecting opening or a piece of ovoid shape.
  • the first opening 304a is designed to have a perfectly ovoidal shape, the second opening 304b being in the form of a curved groove.
  • Such an ovoid shape makes it possible to have a stud 301 whose external dimensions in the XY plane are different.
  • the length of the pad 301 is larger than its width.
  • the stud 301 is in the form of a piece of section identical to that of the first opening.
  • the first opening 304a is arranged so that its length extends perpendicularly to the longitudinal axis of the cock (5). Therefore, when mounting the holding plate 302, the stud 301 is inserted into the first opening. The result is that the longitudinal axis of the stud 301 is in a position angularly offset relative to an alignment with the longitudinal axis of the cock 5.
  • the holding plate 302 is a plate which is fixed on the cock 5.
  • the cock 5 also comprises a through hole or not 500 identical to the first opening 304a of the holding plate 302.
  • the two openings 304a, 500 merge with each other.
  • a male interface 700 and a female interface 702 are arranged.
  • the male interface 700 and the female interface 702 thus cooperate together so as to allow the mobile part to be mounted to the cock 5 by a rotational movement.
  • the rotational mounting is a bayonet mount.
  • the pad extends from the cock 4 and the holding plate 32 is mounted on the pad 31.
  • the female interface 702 is arranged on the pad 31.
  • This female interface 702 consists in that the stud 31 has in its thickness, at least one cavity 702a.
  • This cavity 702a is formed by a clearance 702b parallel to said central axis of the stud 31 and opening with respect to the lower surface of the stud 31, and secant with said first clearance and opposite the upper surface 31a, a blind groove 702c.
  • This throat 702c is used for bayonet immobilization of the holding plate 32.
  • the male interface 700 located at the first opening 34a, consists of at least one projecting portion 701. This projecting portion 701 is located on the edge of the first opening 34a. This projecting portion 701 is arranged to cooperate with the female interface 702 of the stud.
  • the holding plate 32 is mounted at the pad 31 so that the protrusions 701 of the holding plate 32 can be introduced into the clearance 702b of said pad 31.
  • the pad can then be introduced into the first opening.
  • the projecting parts must be opposite the grooves. Therefore, a rotational movement is made to introduce the protrusions into said grooves and fix said stud to the cock.
  • the rotational mounting is a screw mounting.
  • the female interface and the male interface are both in a thread.
  • the stud 31, 301 comprises, at its lower face 31a, 301a, a recess 400.
  • This recess allows to insert a shock absorber system 402.
  • the latter can be in a conventional form is that is to say a kitten in which a pierced stone and a stone against pivot are arranged or in the form of a single stone 404.
  • This single stone 404 is provided with a recess to cooperate with the balance shaft and can to be force-fitted into the recess 400 via an elastic ring 406.
  • the shock absorbing system may also be in the form of a pellet provided with elastic arms.
  • This variant makes it possible to have a centering between the peak and the pivot of the balance shaft which will cooperate with said shock absorber system.
  • This variant can be pushed further by imagining that the stud 301 is itself a shock absorber system.
  • This shock absorbing system is in the form of a kitten in which a pierced stone and a counter-pivot stone are arranged.
  • the stud 301 is mounted adjustable in height.
  • a thread 600 is arranged at the first opening 304a in which the stud 301 is inserted.
  • the stud 301 then comprises a thread 602 on its outer wall 301b to cooperate with the thread 600 of the holding plate 302. It is therefore possible to adjust the height position of the shock absorber system by making more or less turns with the stud. .
  • a preliminary step in mounting the stud is a setting step in which the stud is inserted into the first opening of the holding plate and then rotated to adjust the height of the shock absorbing system. The next step is then the step of setting up the peak and tightening this peak.
  • adjustment means 800 are provided for the angular adjustment of the holding plate to modify the angular position of said holding plate relative to the cock while maintaining a good tightening of the peak .
  • the adjustment means 800 thus comprise engagement means 801 arranged on the face of the holding plate facing the cock and a plurality of receptacles 802 arranged on the face of the cock facing the holding plate as visible in FIG. figure 14 .
  • the engagement means 801 comprise at least one tube 803 projecting from the face of the holding plate facing the cock while the plurality of receptacles comprises a plurality of holes in which the tubes can fit. The fact of having a plurality of tubes 803 makes it possible to maintain even in case of breakage of one of the tubes 803.
  • the plurality of tubes and the plurality of holes are arranged in a circle.
  • This arrangement has the advantage of allowing angularly change the position of the holding plate relative to the cock and lock this angular position. Once the angular position defined and locked, the steps of setting the stud and clamping the stud to the holding plate can be operated.
  • the stud is an insert, it suffices simply to insert said stud in the first opening of the holding plate and in the opening of the cock and to rotate it to act on the deformable beam of the holding plate to tighten the piton.
  • angular adjustment means are provided.
  • These adjustment means 800 comprise a toothed wheel 810 arranged on the balance bridge 5.
  • This toothed wheel 810 is mounted on an axis.
  • This toothed wheel 810 is arranged to cooperate with a toothing 812 arranged on the holding plate. More particularly, this toothing 812 is arranged on the outer wall 32a of the holding plate 32.
  • This wheel 810 includes a slot 814 so that a tool such as a flat head screwdriver can be used to act on the gear 810.
  • the adjustment means 800 comprise a second notch 822 arranged on the holding plate and a first notch 820 arranged at the pivot point 5 as visible at the figure 18 . These notches are facing each other so that it is possible to place the flat head of a screwdriver in the two notches. This arrangement allows, by pivoting the screwdriver 824 on itself, to rotate the holding plate. Angular adjustment means of the simple and inexpensive holding plate are thus obtained.
  • the stud 31 and the holding plate 32 or the holding plate 302 and the stud 301 are arranged on the underside of the cock 5, that is to say at the level of the face lying next to the spiral balance.
  • the orifice 34, 304 of the holding plate 32 as visible to Figures 15a, 15b or pendulum bridge 5 as visible to Figures 16a, 16b is separated into a first opening and a second opening by a deformable arm 35a, 305a having an end connected to the wall of the orifice 34, 304 and a free end.
  • the wall of the orifice 34, 304 further comprises an extension 35b, 305b whose shape is arbitrary. This extension makes it possible, during mounting of the stud, to have the resilient arm pressing the stud against the wall of the second opening 34b ', 304b' and against the wall of the extension to block said stud as visible to Figures 15b and 16b .
  • the deformable arm comprises a boss or projection 35a 'as visible at Figures 19a, 19b .
  • This hump or projection cooperates with the stud 31.
  • the stud 31 is circular but has a flat 31 a.
  • the elastic arm 35a is then arranged so that, when facing the flat, said arm 35a is released so that the bolt can be easily placed.
  • the bump of the resilient arm 35a remains in contact with the wall of the stud 31 so that the thickness variation of the stud 31 between the plate and the rest of its periphery causes a constraint on the elastic arm 35a.
  • the angular adjustment of the holding plate on the cock is done by providing two oblong holes at said holding plate. These two oblong holes allow the fixation of the support plate on the cock while allowing a degree of freedom in the rotation. Preferably, the oblong holes will be made so that the holding plate can rotate around the stud.
  • the holding plate 32 is further provided with at least one notch 32a at its periphery as visible at Figures 19a and 19b .
  • a notch simply allows to use a screwdriver type tool or tweezers to rotate the holding plate.
  • two diametrically opposed notches can be arranged.
  • the stud 301 serving as a shock absorber is used as Z stop to retain the bolt carrier during shocks.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Clamps And Clips (AREA)
EP15198646.0A 2014-12-22 2015-12-09 Porte-piton demontable Active EP3037896B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15198646.0A EP3037896B1 (fr) 2014-12-22 2015-12-09 Porte-piton demontable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14199751 2014-12-22
EP15198646.0A EP3037896B1 (fr) 2014-12-22 2015-12-09 Porte-piton demontable

Publications (2)

Publication Number Publication Date
EP3037896A1 EP3037896A1 (fr) 2016-06-29
EP3037896B1 true EP3037896B1 (fr) 2017-05-10

Family

ID=52134025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15198646.0A Active EP3037896B1 (fr) 2014-12-22 2015-12-09 Porte-piton demontable

Country Status (4)

Country Link
US (1) US9785118B2 (ja)
EP (1) EP3037896B1 (ja)
JP (1) JP6147323B2 (ja)
CN (2) CN105717778B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3037896B1 (fr) * 2014-12-22 2017-05-10 ETA SA Manufacture Horlogère Suisse Porte-piton demontable
CH714249B1 (fr) * 2017-10-16 2021-05-31 Richemont Int Sa Oscillateur pour mouvement horloger.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4836706Y1 (ja) * 1969-09-27 1973-11-01
JPS5223562U (ja) * 1975-08-07 1977-02-18
CH609515GA3 (en) 1976-09-14 1979-03-15 Regulator work for timepiece with balance and hairspring
EP2290477B1 (fr) * 2009-08-25 2014-06-11 Glashütter Uhrenbetrieb GmbH Ensemble de fixation de l'extrémite péripherique du spiral d'un dispositif à balancier-spiral pour pièce d'horlogerie
JP6301834B2 (ja) * 2011-09-29 2018-03-28 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ ヒゲゼンマイ／ヒゲ玉一体型アセンブリ
JP6118037B2 (ja) * 2012-05-08 2017-04-19 セイコーインスツル株式会社 ひげ玉、てんぷおよび時計
CH707815B1 (fr) * 2013-03-19 2017-05-31 Nivarox Far Sa Sous-ensemble de mécanisme d'échappement d'horlogerie comportant un ressort-spiral.
EP2876504B1 (fr) * 2013-11-20 2017-07-26 ETA SA Manufacture Horlogère Suisse Porte-piton d'horlogerie sans vis
EP2887154B1 (fr) * 2013-12-20 2016-07-20 Blancpain SA. Mécanisme de fixation d'un piton à un pont de balancier et dispositif régulateur à balancier-spiral comprenant un tel mécanisme
EP3037896B1 (fr) * 2014-12-22 2017-05-10 ETA SA Manufacture Horlogère Suisse Porte-piton demontable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US9785118B2 (en) 2017-10-10
CN105717778A (zh) 2016-06-29
CN205374996U (zh) 2016-07-06
JP6147323B2 (ja) 2017-06-14
EP3037896A1 (fr) 2016-06-29
US20160179059A1 (en) 2016-06-23
JP2016128806A (ja) 2016-07-14
CN105717778B (zh) 2018-04-17

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