CH286563A - Watch with automatic winding by moving mass. - Google Patents
Watch with automatic winding by moving mass.Info
- Publication number
- CH286563A CH286563A CH286563DA CH286563A CH 286563 A CH286563 A CH 286563A CH 286563D A CH286563D A CH 286563DA CH 286563 A CH286563 A CH 286563A
- Authority
- CH
- Switzerland
- Prior art keywords
- mass
- watch
- automatic winding
- moving mass
- spring
- Prior art date
Links
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
- G04B5/00—Automatic winding up
- G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
- G04B5/18—Supports, suspensions or guide arrangements, for oscillating weights
- G04B5/19—Suspension of the oscillating weight at its centre of rotation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
Description
Montre à remontage automatique par masse mobile. La présente invention a. pour objet une montre à remontage automatique par masse mobile, caractérisée par un accouplement à friction entre la masse et un mobile trans mettant la force au ressort moteur.
Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention. On n'a représenté que les pièces nécessaires à la compréhension de l'in vention.
La fig. 1 en est une coupe diamétrale. La fig. 2 en est une vue de dessus.
La masse mobile 1 est solidaire d'une ron delle de friction 2, la rondelle 2 étant chassée dans une ouverture 3 de la masse 1. Un pi gnon 4, destiné à transmettre la force au res sort moteur (non représenté) est chassé dans un canon 5 présentant une saillie annulaire 6 sur laquelle appuie la rondelle 2. Un bouchon 7 est chassé dans le canon 5, sa face termi nale venant en contact avec celle du pignon 4.
Un ressort de friction, ayant la forme d'une étoile, présente une partie annulaire 8, qui est pincée entre un rebord 9 du bouchon 7 et le canon 5, et des bras 10 qui appuient élastiquement sur la rondelle de friction 2.
Quand la masse tourne, la rondelle 2 en traîne les bras 10 (lu ressort de friction ci-, par suite, le canon 5 et le pignon 4, de sorte que le ressort moteur s'arme. Au moment où la montre est complètement remontée, c'est- à-dire quand le ressort moteur atteint une tension prédéterminée, la résistance à la ro tation que présente le pignon 4 empêche le ressort de friction 8, 10 d'être entraîné par la rondelle 2.
Par suite, si la masse 1 continue de tourner, le ressort 8, 10 res * ilaioiet la rpndelle 2 glisse sous. les bras 1 e sur la saillie 6. On évite ainsi une surtension du ressort moteur; et ceci sans employer, comme ce fut généralement le cas jusqu'à présent, des dispositifs prenant de la place à l'inté rieur du barillet, tels que les brides coulis santes.
Il serait naturellement aussi possible de prévoir un ressort de friction solidaire de la masse et appuyant contre une rondelle de friction solidaire du pignon transmettant. la force au ressort moteur.
Watch with automatic winding by moving mass. The present invention a. for object a watch with automatic winding by moving mass, characterized by a friction coupling between the mass and a mobile transmitting the force to the mainspring.
The appended drawing represents, by way of example, an embodiment of the object of the invention. Only the parts necessary for understanding the invention have been shown.
Fig. 1 is a diametral section. Fig. 2 is a top view.
The movable mass 1 is integral with a friction washer 2, the washer 2 being driven into an opening 3 of the mass 1. A pin 4, intended to transmit the force to the motor spring (not shown) is driven into a barrel 5 having an annular projection 6 on which the washer 2 rests. A plug 7 is driven into the barrel 5, its end face coming into contact with that of the pinion 4.
A friction spring, having the shape of a star, has an annular part 8, which is clamped between a rim 9 of the stopper 7 and the barrel 5, and arms 10 which bear elastically on the friction washer 2.
When the mass turns, the washer 2 drags the arms 10 of it (the friction spring here-, therefore, the barrel 5 and the pinion 4, so that the mainspring is armed. When the watch is completely wound up , i.e. when the mainspring reaches a predetermined tension, the resistance to rotation exhibited by the pinion 4 prevents the friction spring 8, 10 from being driven by the washer 2.
Consequently, if the mass 1 continues to rotate, the spring 8, 10 res * ilaioand the rpndelle 2 slips under. the arms 1 on the projection 6. This prevents overvoltage of the mainspring; and this without using, as has generally been the case until now, devices taking up space inside the barrel, such as sliding flanges.
It would naturally also be possible to provide a friction spring integral with the mass and pressing against a friction washer integral with the transmitting pinion. the force to the mainspring.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH286563T | 1950-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH286563A true CH286563A (en) | 1952-10-31 |
Family
ID=4485433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH286563D CH286563A (en) | 1950-06-23 | 1950-06-23 | Watch with automatic winding by moving mass. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH286563A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2867971A (en) * | 1953-06-23 | 1959-01-13 | Mauthe Gmbh Friedr | Self-winding mechanism, more especially for wrist watches |
DE1070554B (en) * | 1959-12-03 | Friedrich Mauthc Gesellschaft mit beschränkter Haftung, Schwenningcn/ Neckar | Shock-absorbing and friction-locked suspension of the oscillating mass in self-winding watches | |
US2928231A (en) * | 1955-10-11 | 1960-03-15 | Epple Kg Otero Uhren | Automatic winding device, preferably for wrist-watches |
-
1950
- 1950-06-23 CH CH286563D patent/CH286563A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1070554B (en) * | 1959-12-03 | Friedrich Mauthc Gesellschaft mit beschränkter Haftung, Schwenningcn/ Neckar | Shock-absorbing and friction-locked suspension of the oscillating mass in self-winding watches | |
US2867971A (en) * | 1953-06-23 | 1959-01-13 | Mauthe Gmbh Friedr | Self-winding mechanism, more especially for wrist watches |
US2928231A (en) * | 1955-10-11 | 1960-03-15 | Epple Kg Otero Uhren | Automatic winding device, preferably for wrist-watches |
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