CH272876A

CH272876A - Clockwork racket.

Info

Publication number: CH272876A
Authority: CH
Inventors: Bethune Manufacture D Horlo De
Original assignee: Manuf Horlogerie Bethune
Priority date: 1947-07-28
Filing date: 1948-05-12
Publication date: 1951-01-15

Description

Raquetterie de mouvement d'horlogerie. Dans divers mkanismes d'horlogerie, no- tamment dans les mouvements de reveils, la raquette est montee Sur la Platine par Tune de deux vis ä cornet entre lesquelles est dis- pose faxe de Balance, 1e plus souvent avec interposition dune rondelle produisant une friction Sur la raquette pour assurer son maintien Jans la Position r6glee par rapport ä la Platine. Clockwork racket. In various clockwork mechanisms, particularly in alarm movements, the racket is mounted on the plate by one of two horn screws between which is arranged a fax balance, most often with the interposition of a washer producing friction. On the racquet to ensure that it is maintained in the adjusted position with respect to the plate.

Ges dispositifs presentent 1'ineonvenient qu'il est difficile d'utiliser .les vis ä cornet pour 1e reglage de laxe de balancier, notam- ment loraqu'il y a lieu d'affüter les pointes de cet axe et, par Suite, de faire varier sa longueur, car les vis ne peuvent pas etre vissees dann une mesure telle qu'elles bloque- raient la raquette. These devices have the drawback that it is difficult to use the horn screws for adjusting the balance shaft, especially when it is necessary to sharpen the points of this shaft and, subsequently, to vary its length, as the screws cannot be screwed in so far as to block the racket.

La presente invention remedie ä ces incon- v6nients. Elle a pour objet une raquetterie de mouvement d'horlogerie dont 1e balancier est pivote dann des vis ä cornet et notam- ment de mouvement de r6veils, caractdrisee en ce que la raquette comporte un moyeii peree dun trou de diamUre superieur ä ce- lui du trou taraude de la Platine recevant la vis ä cornet, ce moyeu dispos6 coaxialement au-dessus de ce trou taraude kant maintenu par un couvre-raquette presentant un canon embouti de centrage venant prendre appui Sur la Platine autour du trou taraude, une Partie exerüant une legere Pression de fric- tion Sur 1e moyeu de la raquette, un 6pau- lement prenant appui Sur 1e dessus de la pla- tine ä 1'exterieur du moyeu de la raquette et deux pattes diametralement opposees enga- g4es dans deux trous de la Platine et rabat- tues contre 1e dessous de celle-,ei. The present invention overcomes these disadvantages. Its subject is a racket for a clock movement, the balance of which is pivoted in horn screws and in particular for an alarm clock movement, characterized in that the racket comprises a means pierced with a hole of a diameter greater than that of the tapped hole of the Plate receiving the horn screw, this hub arranged coaxially above this tapped hole kant maintained by a racket cover having a stamped centering barrel coming to bear on the Plate around the tapped hole, a Part exerting a slight friction pressure On the hub of the racket, a 6-shoulder resting On the top of the plate outside the hub of the racket and two diametrically opposed legs engaged in two holes of the Plate and folded down against the underside of the latter.

Une forme d'execution de la raquetterie selon 1'invention est representee, ä titre d'exemple, au dessin anhexe. One embodiment of the rack according to the invention is shown, by way of example, in the appended drawing.

La fig. 1 est une coupe axiale ä echelle tr es agrandie dune raquette et d'un couvre- raquette poses Sur une Platine. fig. 1 is a greatly enlarged axial section of a racquet and racquet cover resting on a turntable.

La fig. 2 en est une vue partielle en plan correspondante. fig. 2 is a corresponding partial plan view.

La fig. 3 est une vue en perspective dune Platine Sur laquelle sont poses la raquette et le couvre-raquette. fig. 3 is a perspective view of a turntable on which the racquet and the racquet cover are placed.

La fig. 4 est une 616vation du eouvre- raquette. fig. 4 is an elevation of the racket opener.

La fig. 5 est une e16vation laterale du couvre-raquette. fig. 5 is a side elevation of the racquet cover.

La fig. 6 est une 61evation laterale de la raquette. fig. 6 is a side elevation of the racket.

La fig. 7 est un plan de cette raquette. La fig. 8 est une dlevation laterale de la raquette vue de la gauche de la fig. 6. fig. 7 is a plan of this racket. fig. 8 is a side elevation of the racket seen from the left of FIG. 6.

Dans ces figures, 1 designe la Platine du mouvement d'horlogerie. La raquette, posee Sur cette Platine, est eonstituee par une pike en acier doux estampee comportant, comme an 1e voit en partieulier aux fig. 6 ä 8, un RTI ID="0001.0268" WI="10" HE="4" LX="1046" LY="2162"> moyeu 2 presentant un trou rond 3; dun eöte de ce moyeu s'etend une tige 4 Sur la- quelle est cambrk ou rabattue la patte 5 ä boutonniere 6 recevant 1'extremite du spiral de 1'autre c6te, la raquette comporte un.e queue 7 pAsentant ime patte de manccuvre eambree B. In these figures, 1 designates the plate of the clock movement. The racket, placed on this plate, is made up of a stamped mild steel pike comprising, as the first year sees in particular in figs. 6 to 8, an RTI ID="0001.0268" WI="10" HE="4" LX="1046" LY="2162"> hub 2 having a round hole 3; from one side of this hub extends a rod 4 on which is arched or folded down the tab 5 with buttonhole 6 receiving the end of the spiral on the other side, the racket comprises a tail 7 presenting a maneuvering tab eambre B.

Le couvre-raquette (fig. 4 et 5) est 6gale- ment constitue par une pike d'aeier doux estampee comportant une Partie cireidaire 9 pereee en son milieu dun treu 10 dont les bords emboutis forment un canon 11, puis deux pattes diametralement opposees 12, 13 sont coüdees, en formant des epaulements 14 15.A 1'endroit oü la raquette doit etre montee Sur la Platine 1, celle-ei presente 1e treu ta- raud6 iisuel 16, destine ä recevoir une vis ä cornet. Le moyeu 2 de la raquette est pose avec -son treu 3 coaxial au treu 16 de la Pla- tine, puis 1e couvre-raquette 9 est- pose par- dessus en engageant ses deux pattes 12, 13 dann des trous 17, 18 de la Platine. Les 6pau- lements 14, 15 du couvre-raquette prennent appui Sur 1e dessus de la Platine, puis les extremites 12', 13' des pattes 12, 13 sont ra- battues contre 1e dessous de cette- derniere, de Sorte que 1e couvre-raquette maintient la räquette appüyee contre la Platine. Cette ra- quette peut toutefois. pivoter autour de laxe des troiLs ,ailgnes 16, 3 en Uant maintenue par frietion entre son couvre-raquette 9 et la Platine. Le canon embouti 11 du couvre- r aquette assure 1e @centrage de la raquette. The racket cover (figs. 4 and 5) is also made up of a pike of stamped soft steel comprising a waxy part 9 pierced in the middle with a hole 10 whose stamped edges form a barrel 11, then two diametrically opposed tabs 12, 13 are bent, forming shoulders 14 15. At the place where the racket is to be mounted. On the Plate 1, the latter presents the usual tapping hole 16, intended to receive a horn screw. The hub 2 of the racket is placed with its shaft 3 coaxial with the shaft 16 of the plate, then the first racket cover 9 is laid over it by engaging its two legs 12, 13 in the holes 17, 18 of platinum. The 6 shoulders 14, 15 of the racket cover rest on the top of the plate, then the ends 12', 13' of the tabs 12, 13 are folded against the bottom of the latter, so that the - racket keeps the racket pressed against the plate. However, this racquet can. pivot around the axis of the troiLs, lines 16, 3 in Uant maintained by friction between its racket cover 9 and the Platinum. The stamped barrel 11 of the racquet cover ensures the 1st centering of the racquet.

Ainsi, la vis- ä cornet ou vis de balancier vissee dann 1e treu 16 est completement inde- pendante de la raquette, ce qui permet de la poser, de Penlever, de la serrer ou de la desserrer sann que Von ait ä toueher 1'ensem- ble raquette et cöiIvre-raquette dont 1e ser= rage initial Sur la Platine reste inchange. Thus, the horn screw or balance screw screwed into the shaft 16 is completely independent of the racket, which allows it to be placed, removed, tightened or loosened without having to touch the racket. racquet and racquet cover assembly, the initial tightness of which on the plate remains unchanged.

La fixation de la raquette et de son cou- v re-raquette Sur la Platine est totalement independante de la vis ä cornet ou vis de ba- lance. Il s'ensuit que le serrage du couvre- raquette Sur celle-ei -Best constant, de Sorte que la raquette peut tourner facilement, puis- qu'elle est maintenue sann jeu par la frietion reglee initialement, quel quo seit 1e degre de serrage de 1a. vis ä cornet. En outre, la vis ä cornet etant independante, 1'ensemble du ba- lancier peut etre regle ä volonte en hauteur entre les deux platines, ce qui permet d'utili- ser des axes de balancier de longueurs diffe rentes pour un meme mouvement d'horlogerie. The fixing of the racket and its racket cover on the plate is totally independent of the horn screw or balance screw. It follows that the tightening of the racket cover on it is constant, so that the racket can turn easily, since it is maintained without play by the initially adjusted friction, whatever the degree of tightening. of 1a. horn screw. In addition, the horn screw being independent, the entire balance can be adjusted at will between the two plates, which allows the use of balance axes of different lengths for the same movement of watchmaking.

La conformation des pikes embouties peut varier Jans une certaine mesure, sans sortir du cadre de Pinvention. Par exemple, Je couvre-raquette poilrrait presenter un moyeu eireulaire entoure d'un Beul dpaulement, et 1e nombre des pattes de fixation poiirrait etre plus Brand que deux. The conformation of the stamped pikes can vary to some extent without departing from the scope of the invention. For example, the racquet cover might have a circular hub surrounded by a single shoulder, and the number of binding tabs might be more than two.

Claims

CLAIM: RTI ID="0002.0272" WI="19" HE="4" LX="1690" LY="759"> watchmaking movement racket equipped with the first balance wheel is pivoted in eornet screws, characterized in that the racket comprises a hub provided with a treu of diameter greater than that of the threaded treu of the Plate receiving the horn screw, this hub, disposed coaxially above this threaded treu, being held by a couzn@e-racquet having a stamped centering barrel coming to rest on the plate around the threaded treu, a part exerting a slight pressure on the hub of the racket, at least a shoulder resting on the top of the - Plate outside the hub of the racket and at least two diametrically opposed legs engaged in two holes of the Plate and folded against the underside thereof. SUB-CLAIMS 1. Device according to claim, characterized in that the racket and the racket cover are constituted by two stamped soft steel spikes.

2. Device according to claim, ea- raet6rise in that the racket has, on one side of its hub, a rod having a tab provided with a buttonhole in which is engaged 1'extremite of the balance spring and, on the other c8te. from its hub, a shank carrying a maneuvering lug, the whole being cut, stamped and arched in a single piece of metal.

3. Device according to claim, characterized in that the racket cover has a circular hub surrounded by a shoulder and two diametrically opposite tabs serving for fixing in the holes of the frame.

4. Device according to claim, characterized in that the racket cover has a circular hub surrounded by a shoulder and several lugs serving for fixing in the holes of the plate.