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EP0240778B1 - Mécanisme à poussoir pour pièce d'horlogerie - Google Patents

Mécanisme à poussoir pour pièce d'horlogerie Download PDF

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Publication number
EP0240778B1
EP0240778B1 EP87103803A EP87103803A EP0240778B1 EP 0240778 B1 EP0240778 B1 EP 0240778B1 EP 87103803 A EP87103803 A EP 87103803A EP 87103803 A EP87103803 A EP 87103803A EP 0240778 B1 EP0240778 B1 EP 0240778B1
Authority
EP
European Patent Office
Prior art keywords
pushpiece
branch
heel
fact
mechanism according
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.)
Expired
Application number
EP87103803A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0240778A1 (fr
Inventor
Alphonse Bron
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 Fabriques dEbauches
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 Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0240778A1 publication Critical patent/EP0240778A1/fr
Application granted granted Critical
Publication of EP0240778B1 publication Critical patent/EP0240778B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/048—Operation exclusively by axial movement of a push-button, e.g. for chronographs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/016—Application timepiece
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18992—Reciprocating to reciprocating

Definitions

  • the invention relates to a control mechanism for a timepiece, in particular for a chronograph comprising a pusher intended to occupy a first rest position and a second depressed position and means for returning the pusher from the depressed position to the position of rest, mechanism arranged so that the force applied to the pusher passes through a maximum in an intermediate position.
  • the pushers commonly used in relation to mechanical timepieces always act on a mechanism, either to correct an indication, or to start or start a particular function, for example a count (chronograph). Due to this action on a mechanism which passes from one state to another, there is a discontinuity or an abrupt variation in the force exerted on the pusher by the user, which results in a generally audible click. , accompanied by the very clear perception of the change in the pushing force. The user therefore knows, without having to visually verify it, that he has effectively ordered and implemented the function concerned.
  • patent CH 629,647 (US 4,451,719) proposes a pusher comprising a rod sliding in a tube against the return force of a spring, a pusher in which an elastic member is interposed between the rod and the tube. This member is retained axially in a housing formed in the rod and cooperates with a surface carried by the tube, said surface having a sufficient variation in slope for a click or detachment to occur when the elastic member crosses this variation in slope. It appears from what has just been said that the entire click mechanism is incorporated in the pusher, which complicates its construction and increases its size, especially in diameter, which makes it ill-suited to a chronograph of thin.
  • the triggering effect of the return means of the pusher according to the invention does not depend on the way in which they are installed on the plate or on their cooperation with elements which are integral with this plate, but only depends the configuration of said return means themselves.
  • they comprise two support members arranged to cooperate with the eu, with the other and connected by an elastic member, said support members and said elastic member being made in one piece.
  • Figure 1 is a plan view of the mechanism according to the invention.
  • This mechanism comprises a pusher not shown and symbolized only by its force of application F1.
  • This pusher acts on return means 1 of the pusher from a depressed position to a rest position.
  • These return means comprise two support members 2 and 3 and an elastic member 4 which connects these support members.
  • Figure 1 shows that the support members 2 and 3 and the elastic member 4 are made in one piece. This unique piece can be cut from a sheet of steel for example.
  • the support members 2 and 3 are arranged to cooperate together in the manner which will be better explained with reference to FIGS. 2a to 2d.
  • Figure 1 shows the mechanism in the idle state when no force is applied to the pusher.
  • the return means 1 have a general U shape.
  • the first branch 5 of the U is articulated at its base 6 and can bend angularly under the action of the pusher which is exerted in F1 .
  • the second branch 7 of the U can slide elastically in the longitudinal direction (arrow 8) and this by bending the thinned base 9 of the U-shape, which tends to move this base in the direction of the arrow 10.
  • the first branch 5 is articulated at its base 6 on a support 11, while the second branch 7 is guided in a slide formed by the elements 12 and 13.
  • the support member 3 comprises an oblong hole 14 into which a guide pin 15 enters.
  • the support 11, the sliding elements 12 and 13 and the pin 15 form part of the plate of the clockwork movement on which the spring 1 rests.
  • a plate (not shown) limits the spring play in the thickness direction of the timepiece.
  • the spring 1 is sandwiched between the plate and a spacer, made for example of plastic material, spacer which includes the supports 11, 12 and 13.
  • the support member 2 has the form of a spout having a frontal inclined plane 16 and the support member 3 has the shape of a heel shaped to cooperate with the spout.
  • Figure 1 also shows that the return means 1 further comprises an electrical contact element 21 which acts for example on the track 23 of a printed circuit 22.
  • the contact 21 closes an electrical circuit constituted by the U-shaped element and the track 23.
  • FIG. 1 shows that the contact 21 is also made in one piece with the return means 1. It is an extension of the branch 5 , an extension which is advantageously folded out of the spout and at the point of contact 21.
  • FIG. 1 also shows that a great latitude is left at the point of application of the force F1 on the branch 5.
  • This point of application could be at F2 for example or at any other point situated between F1 and F2.
  • the proposed construction does not require great precision as to the position of the pusher relative to the branch 5, which simplifies the execution of the system and makes its application more universal. At most, there will be slight differences in the force to be applied to the pusher depending on the point of application of this force to fulfill the requested function, differences due to the lever arm of branch 5.
  • FIG. 3 is another embodiment of the invention derived from that which has just been discussed.
  • the U-shaped return means 1 are articulated no longer on a support but around an axis formed by a screw 25 which crosses the U-shaped part. This way of doing things avoids the use of the slide formed by the supports 12 and 13 which appeared in the execution according to the figure 1.
  • the longitudinal guidance of the branch 7 will always be carried out by means of the pin 15 and the oblong hole 14 (see FIG. 1).

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)
EP87103803A 1986-04-09 1987-03-16 Mécanisme à poussoir pour pièce d'horlogerie Expired EP0240778B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1389/86 1986-04-09
CH138986A CH664863GA3 (zh) 1986-04-09 1986-04-09

Publications (2)

Publication Number Publication Date
EP0240778A1 EP0240778A1 (fr) 1987-10-14
EP0240778B1 true EP0240778B1 (fr) 1989-11-29

Family

ID=4209285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103803A Expired EP0240778B1 (fr) 1986-04-09 1987-03-16 Mécanisme à poussoir pour pièce d'horlogerie

Country Status (6)

Country Link
US (1) US4818830A (zh)
EP (1) EP0240778B1 (zh)
JP (1) JPH0636039B2 (zh)
CH (1) CH664863GA3 (zh)
DE (1) DE3761062D1 (zh)
HK (1) HK2095A (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404468B1 (en) * 1989-06-19 1995-12-06 Seiko Epson Corporation Timepiece
US5339297A (en) * 1989-06-19 1994-08-16 Seiko Epson Corporation Switching arrangement for applying battery voltage to circuitry block in an analog timepiece
US5187876A (en) * 1989-08-04 1993-02-23 Hatheway Alson E Precision motion transducer
CH681189B5 (zh) * 1991-02-05 1993-08-13 Complications Sa
CH685583B5 (fr) * 1994-04-12 1996-02-29 Manuf Cec 2 S A Dispositif de commande a poussoir notamment pour piece d'horlogerie.
JP3404956B2 (ja) * 1995-01-31 2003-05-12 松下電器産業株式会社 プッシュスイッチ
EP1089144B1 (fr) 1999-09-29 2009-01-21 The Swatch Group Management Services AG Bride de contact de poussoir multifonction
ATE470204T1 (de) 2007-09-05 2010-06-15 Vidiom Sa Verfahren zum drehen von bildern
US9140185B2 (en) * 2009-11-24 2015-09-22 Honeywell International Inc. Locating mechanism for turbocharger bearing
CH705461A1 (fr) 2011-09-05 2013-03-15 Manuf Roger Dubuis Sa Dispositif de commande pour pièce d'horlogerie.
EP3489766A1 (fr) * 2017-11-27 2019-05-29 Montres Breguet S.A. Mécanisme de correction d'une fonction d'un mouvement d'une pièce d'horlogerie
CH718698B1 (fr) * 2021-06-01 2023-11-15 Dubois & Depraz Sa Mécanisme horloger pour correction de plusieurs affichages.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157770A (en) * 1961-10-11 1964-11-17 Roland J Beaulieu Sliding contact brushes
US3243562A (en) * 1964-06-01 1966-03-29 Sperry Rand Corp Unitary electrical connector device
NL6710586A (zh) * 1967-07-31 1969-02-04
US3628824A (en) * 1969-08-04 1971-12-21 Israel State Implement for grasping small objects
DE2510902C3 (de) * 1975-03-13 1979-10-04 J. & J. Marquardt, 7201 Rietheim Elektrischer Schalter
FR2420834A1 (fr) * 1978-03-24 1979-10-19 Suisse Horlogerie Poussoir commutateur pour piece d'horlogerie
CH624261GA3 (en) * 1978-07-12 1981-07-31 Stopwatch

Also Published As

Publication number Publication date
DE3761062D1 (de) 1990-01-04
CH664863GA3 (zh) 1988-04-15
EP0240778A1 (fr) 1987-10-14
JPH0636039B2 (ja) 1994-05-11
US4818830A (en) 1989-04-04
HK2095A (en) 1995-01-13
JPS62245181A (ja) 1987-10-26

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