CH296067A

CH296067A - Timepiece with automatic winding by rotating mass.

Info

Publication number: CH296067A
Authority: CH
Inventors: Horlogere De Porrentru Societe
Original assignee: Horlogere De Porrentruy Phenix
Priority date: 1952-02-20
Filing date: 1952-02-20
Publication date: 1954-01-31

Description

Pieee d'horlogerie ä remontage automatique par masse rotative. La. presente invention a pour objet une piece d'horlogerie ä remontage automatique par masse rotative. Watch piece with automatic winding by rotating mass. The subject of the present invention is a timepiece with automatic winding by a rotating mass.

Cette piece d'horlogerie est caraeterisee par le fait que la masse entraine une eame ä trois bras ä laquelle est assujetti un levier pivote coaxialement ä un rochet faisant Partie du train de remontage, ee levier portant un cliquet en Prise avee ledit rochet de maniere que les oscillations du levier produites par les deplacements de la masse provoquent la rota- tion dudit rochet et par 1ä 1e remontage. This timepiece is characterized by the fact that the mass drives a three-armed shaft to which is attached a lever pivoted coaxially to a ratchet forming part of the winding train, this lever carrying a pawl in engagement with said ratchet so that the oscillations of the lever produced by the displacements of the mass cause the rotation of the said ratchet and by the winding.

Le dessin annexe represente, ä. titre d'exemple, une forme d'execution de 1'objet de 1'invention. . The accompanying drawing represents, ä. By way of example, one form of execution of the object of the invention. .

La fig.1 est une vue en plan dune pieee d'horlogerie eonstituant ladite forme d'ex6cu- tion et Jans laquelle seuls les organes neees- saires ä, la comprehension de 1'invention ont ete representes. Fig.1 is a plan view of a watch part constituting said form of execution and in which only the organs necessary for understanding the invention have been represented.

La fig. 2 est une eoupe suivant II-II de la fig.1, ä khelle agrandie. fig. 2 is a following eoupe II-II of fig.1, ä khelle enlarged.

La fig.3 est une coupe axiale illustrant une variante du dispositif de fixation de la masse, et la fig. 4 est une vue en plan de cette va riante. Fig.3 is an axial section illustrating a variant of the mass fixing device, and fig. 4 is a plan view of this laughing will.

Dans les fig.I et 2, la masse rotative de remontage est designee par 1; eile est pivotee en 2 et est solidaire dune came 3 ä trois bras ä laquelle est assujettie la tete 4a d'un levier 4 articule en 5 coaxialement ä un rocket 6; ce dernier est solidaire dun pignon 7 con- duisant 1e rochet de barillet B. Le levier 4 Porte, articule en 9, un cliquet 10 en Prise avee le rochet 6 pour 1e faire tourner dans 1e sens de la fleche 11 correspondant au re- montage. Un cliquet de retenue 12 est 6gale- ment engage dans la denture du rochet 6. Les cliquets 10 et 12 sont rappeles par un ressort commun 13. Ce ressort est forme dune lame elastique fixee par son extremite 13a au cii- quet 12 et appuye par son extremite libre 13b eontre 1e eliquet 10. Le levier 4 est maintenu en contact avec la came 3 par un ressort-lame 14 fixe au bäti du möuvement en 15 et dopt la tension peut etre reglee au moyen dun excentrique 16. Les deplacements angulaires de la masse 1 produisent, par 1'intermediaire de la came 3, un mouvement oseillant du levier 4, qui provoque 1e remontage. In fig.I and 2, the rotary winding mass is designated by 1; it is pivoted at 2 and is integral with a cam 3 with three arms to which is fixed the head 4a of a lever 4 articulated at 5 coaxially with a rocket 6; the latter is integral with a pinion 7 driving the 1st barrel ratchet B. The lever 4 carries, articulated at 9, a pawl 10 engaged with the ratchet 6 to make it turn in the 1st direction of the arrow 11 corresponding to reassembly . A retaining pawl 12 is also engaged in the toothing of the ratchet 6. The pawls 10 and 12 are returned by a common spring 13. This spring is formed of an elastic blade fixed by its end 13a to the pawl 12 and supported its free end 13b against the first catch 10. The lever 4 is kept in contact with the cam 3 by a leaf spring 14 fixed to the frame of the movement at 15 and adopts the tension can be adjusted by means of an eccentric 16. The angular displacements of the mass 1 produce, through the intermediary of the cam 3, a daring movement of the lever 4, which causes the first winding.

Dans la variante des fig. 3 et 4, la planche 17 de la masse est solidaire dun manehon 18 tournant sur des rouleaux ou aiguilles 19 in- seres entre ce manchon et un tourillon fixe 20; 1e manehon 18 Fait Corps avec la came 18a. In the variant of FIGS. 3 and 4, the board 17 of the mass is secured to a crankpin 18 rotating on rollers or needles 19 inserted between this sleeve and a fixed journal 20; 1st crankpin 18 Body with cam 18a.

Claims

CLAIM Pike of watchmaking with automatic winding by rotating mass, characterized by the fact that the mass drives a cam with three arms to which is attached a lever pivots coaxially to a ratchet forming part of the winding train, this lever bearing a pawl engaged with said rocket so that the oscillations of the lever produced by the

displacements of the mass cause the rotation of said ratchet and by 1a the first winding. SUBCLAIMS 1. Clockwork stone according to claim, characterized by the fact that said lever is subjected to the action of a leaf spring which tends to apply it against the cam.

'?. Watchmaking stone according to the tion, in which a retainer is engaged Jans the toothing of said roehet, caraete risee by the first fact that ee eliquet and. the lever catches are returned by a common leaf spring fixed to one of them by one of its ends and resting against the other by its other end.