CH285524A - Automatic winding mechanism by oscillating weight for watch movement. - Google Patents

Automatic winding mechanism by oscillating weight for watch movement.

Info

Publication number
CH285524A
CH285524A CH285524DA CH285524A CH 285524 A CH285524 A CH 285524A CH 285524D A CH285524D A CH 285524DA CH 285524 A CH285524 A CH 285524A
Authority
CH
Switzerland
Prior art keywords
lever
automatic winding
watch movement
winding mechanism
oscillating
Prior art date
Application number
Other languages
French (fr)
Inventor
Dasa S A
Original Assignee
Dasa S A
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 Dasa S A filed Critical Dasa S A
Publication of CH285524A publication Critical patent/CH285524A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00Automatic winding up
    • G04B5/02Automatic winding up by self-winding caused by the movement of the watch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Description

  

  Mécanisme de remontage automatique par masse oscillante pour mouvement de montre.    La présente invention a pour objet un  mécanisme de remontage automatique par  masse oscillante pour mouvement de montre.  Ce mécanisme est     earaetérisé    en ce que ladite  masse est solidaire d'un excentrique qui co  opère avec un levier fourchu oscillant, ce der  nier agissant à son tour sur l'articulation  d'une     genouillère    qui commande, par l'inter  médiaire d'un levier, un cliquet d'impulsion  entraînant la roue de remontage.  



  On connaît des     mécanismes    de remontage  automatique, dans lesquels la masse oscillante  commande la roue de remontage par l'inter  médiaire d'un train d'engrenages ou d'une  bascule dentée portant des cliquets. Dans ces  différentes constructions, les mouvements de  la masse sont transmis judicieusement démul  tipliés pour permettre à la. masse de vaincre  la résistance du ressort de barillet. Cepen  dant, ces mécanismes nécessitent. l'emploi de  fournitures nombreuses et de fabrication  assez délicate.  



  Le but de l'invention est de simplifier ces  mécanismes et d'augmenter le rendement en  employant une genouillère analogue à. celles  utilisées sur les presses pour l'obtention de  fortes pressions. Par l'emploi de simples le  viers et de bielles, l'invention rend plus sim  ple la fabrication et permet de réaliser un  mécanisme pouvant se monter sans difficulté  sur des mouvements de petites dimensions.  



  Le     dessin    annexé représente, à titre       d'exemple,    une     tonne    d'exécution (le l'objet  de l'invention.    La figure unique en est une vue en plan.  Dans le dessin, 1 désigne la masse oscil  lante qui est solidaire d'un excentrique 2; ce  dernier est pivoté au centre du mouvement  sur un axe 3 fixé sur le pont inférieur q.  



  L'excentrique 2 est engagé dans     cane    en  trée à fourche 21 d'un levier 6, pivotant libre  ment sur un axe 7.     L'axe    7 est. maintenu dans  des coussinets, d'une     part,    dans le pont infé  rieur 4 et, d'autre part, dans le pont supé  rieur 9.  



       Z        n    dispositif: à     genouillère    est prévu, qui  est formé des bielles 10 et 11. La bielle 10  pivote librement sur l'axe susmentionné 7 et  est montée librement sur un tenon 5 solidaire  de la seconde bielle 11. de la genouillère. Le  levier fourchu 6 présente une entrée 8 entou  rant le tenon 5.  



  La bielle     1.1.    porte à son extrémité libre un  ergot 1.2 s'ajustant dans une entrée 1.3 d'un  des bras du levier coudé 1 4 pivoté en 1.9       coaxialement    au rochet 15 du barillet.     Un     cliquet 16, pivoté en 1.7 sur le second bras du       levier        1-l,    est maintenu contre les dents du  rochet. 15 par un ressort 1.8. Le levier 14 est.  maintenu     axialement    par le pont supérieur 9.  Le rochet 1.5, coaxial à et solidaire de la. roue  de remontage habituelle, est retenu par le  cliquet 20.  



  Le mécanisme décrit fonctionne de la     fa-          eon    suivante:  Quand la masse oscillante 1. tourne,  l'excentrique 2, engagé dans l'entrée 21 du  levier 6, fait osciller ledit levier 6. Ce der-      nier agit à son tour, par son entrée 8, sur le  tenon 5 de la. genouillère, laquelle s'ouvre et.  se ferme     alternativement.    Quand la genouil  lère s'ouvre, la bielle 11 fait tourner le levier       1-t    dans le sens des aiguilles d'une montre, de  sorte que le cliquet 16 entraîne le barillet  dans le sens indiqué par la flèche.

   Lorsque la  genouillère se referme un instant. plus tard,  la bielle 11 entraîne le levier 1.4 en sens in  verse des     aiguilles    d'une montre, et le     cliquet     16 saute sur les dents du rochet. 15, sans  fonction utile, le rochet. 15 étant alors retenu  par le cliquet     \?0.    La genouillère s'ouvre en  suite â nouveau et le même cycle se répète.  La masse oscillante 1 peut effectuer des tours  complets et elle remonte le rochet de barillet  quel     que    soit     soli    sens de rotation.



  Automatic winding mechanism by oscillating weight for watch movement. The present invention relates to an automatic winding mechanism using an oscillating mass for a watch movement. This mechanism is earaetérisé in that said mass is integral with an eccentric which co-operates with an oscillating forked lever, this latter in turn acting on the articulation of a toggle which controls, through the intermediary of a lever, an impulse pawl driving the winding wheel.



  Automatic winding mechanisms are known, in which the oscillating mass controls the winding wheel by the intermediary of a gear train or a toothed lever carrying pawls. In these different constructions, the movements of the mass are transmitted judiciously multiplied to allow the. mass to overcome the resistance of the mainspring. However, these mechanisms require. the use of numerous supplies and rather delicate manufacturing.



  The object of the invention is to simplify these mechanisms and to increase the efficiency by using a toggle similar to. those used on presses to obtain high pressures. By the use of simple viers and connecting rods, the invention makes manufacturing simpler and makes it possible to produce a mechanism which can be mounted without difficulty on movements of small dimensions.



  The appended drawing represents, by way of example, an embodiment (the object of the invention. The single figure is a plan view. In the drawing, 1 designates the oscillating mass which is integral with 'an eccentric 2; the latter is pivoted at the center of the movement on an axis 3 fixed on the lower bridge q.



  The eccentric 2 is engaged in the cane in the forked shaft 21 of a lever 6, pivoting freely on an axis 7. The axis 7 is. maintained in bearings, on the one hand, in the lower deck 4 and, on the other hand, in the upper deck 9.



       Z n device: a toggle is provided, which is formed of the connecting rods 10 and 11. The connecting rod 10 pivots freely on the aforementioned axis 7 and is freely mounted on a tenon 5 integral with the second connecting rod 11. of the toggle. The forked lever 6 has an entry 8 surrounding the tenon 5.



  The connecting rod 1.1. carries at its free end a lug 1.2 fitting into an inlet 1.3 of one of the arms of the angled lever 1 4 pivoted at 1.9 coaxially with the ratchet 15 of the barrel. A pawl 16, pivoted at 1.7 on the second arm of lever 1-l, is held against the teeth of the ratchet. 15 by a spring 1.8. Lever 14 is. maintained axially by the upper bridge 9. The ratchet 1.5, coaxial with and integral with the. usual winding wheel, is retained by the pawl 20.



  The described mechanism works as follows: When the oscillating mass 1. rotates, the eccentric 2, engaged in the entry 21 of the lever 6, causes said lever 6 to oscillate. The latter in turn acts, by its entry 8, on the tenon 5 of the. kneepad, which opens and. alternately closes. When the knee opens, the connecting rod 11 rotates the lever 1-t clockwise, so that the pawl 16 drives the barrel in the direction indicated by the arrow.

   When the knee lifter closes for a moment. later, the connecting rod 11 drives the lever 1.4 in a counterclockwise direction, and the pawl 16 jumps on the teeth of the ratchet. 15, without useful function, the ratchet. 15 then being retained by the pawl \? 0. The knee lifter then opens again and the same cycle is repeated. The oscillating mass 1 can make full revolutions and it winds the barrel ratchet regardless of the solid direction of rotation.

 

Claims (1)

.Mécanisme REVENDICATION: de remontage automatique par masse oscillante pour mouvement de montre, caractérisé en ce que ladite masse est. soli daire d'un excentrique qui coopère avec un levier fourchu oscillant, ce dernier agissant à son tour sur l'articulation d'une genouil lère qui commande, par l'intermédiaire d'un levier, un cliquet d'impulsion entraînant la roue de remontage. SOUS-REVENDICATION: .Mechanism CLAIM: automatic winding by oscillating mass for watch movement, characterized in that said mass is. integral with an eccentric which cooperates with an oscillating forked lever, the latter in turn acting on the articulation of a first knee which controls, via a lever, an impulse pawl driving the control wheel. reassembly. SUB-CLAIM: Mécanisme selon la revendication, earae- térisé en ce que le levier fourchu pivote sur un axe (7) qui sert également. de pivotement pour la première bielle (1.0) de la genouillère. Mechanism according to claim, characterized in that the forked lever pivots on a pin (7) which also serves. pivot for the first connecting rod (1.0) of the knee lever.
CH285524D 1950-05-26 1950-05-26 Automatic winding mechanism by oscillating weight for watch movement. CH285524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH285524T 1950-05-26

Publications (1)

Publication Number Publication Date
CH285524A true CH285524A (en) 1952-09-15

Family

ID=4484979

Family Applications (1)

Application Number Title Priority Date Filing Date
CH285524D CH285524A (en) 1950-05-26 1950-05-26 Automatic winding mechanism by oscillating weight for watch movement.

Country Status (1)

Country Link
CH (1) CH285524A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150326B (en) * 1953-11-28 1963-06-12 Tavannes Watch Co Sa Self-winding watch
FR2135133A1 (en) * 1971-05-05 1972-12-15 Baumgartner Freres Sa

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150326B (en) * 1953-11-28 1963-06-12 Tavannes Watch Co Sa Self-winding watch
FR2135133A1 (en) * 1971-05-05 1972-12-15 Baumgartner Freres Sa

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