CH157385A

CH157385A - Watch case.

Info

Publication number: CH157385A
Authority: CH
Inventors: Brechbuhl Ernest
Original assignee: Brechbuhl Ernest
Priority date: 1931-10-07
Filing date: 1931-10-07
Publication date: 1932-09-30

Description

ssoitier de montre. L'invention a pour objet un boitier de cnontre comportant un vei-re assemble avec la carrure du boitier. Elle a pour but de creer un assemblage entre lesdits elements, pratiquement impermeable ä 1'eau, ä l'humi- dit6 et ä la poussiere, en vue de la Aalisa- tion dun boitier hermetiquement clos. watchmaker. The invention relates to a case of cnontre comprising a re-vei assembled with the middle of the case. Its purpose is to create an assembly between said elements, practically impermeable to water, humidity and dust, with a view to producing a hermetically sealed case.

Suivant 1'invention, le boitier äst carac- t6rise en ce que 1e verre possede un rebord plat, au moins approximativement parallele au plan du verre et formant bride, 1e verre etant engage et fixe par cette bride, dass une rainure de la carrure du boitier, au moyen dune bague de sei-rage adaptee ä la carrure. According to the invention, the case is characterized in that the glass has a flat rim, at least approximately parallel to the plane of the glass and forming a flange, the glass being engaged and fixed by this flange, in a groove in the middle of the case. case, by means of a sei-rage ring adapted to the middle.

Le dessin ci-joint montre; ä titre d'exem- ples, deux formen d'execution representees en coupe aux fig. 1 et 2 respectivement. The attached drawing shows; By way of examples, two embodiments shown in section in FIGS. 1 and 2 respectively.

Le boitier comprend une carrure 3 percee dune forure 4 pour 1e passage de la tige de remontoir. Dans la forure 4 äst fixe un tube 5 pour 1'ajustement de la couronne de remon- toir. Le boitier comporte en outre un fond 6 et un verre 7, ce dernier etant de prefe- rence fait en rnatiere incassable (cellon). The case comprises a caseband 3 pierced with a hole 4 for the first passage of the winding stem. In the hole 4 is fixed a tube 5 for adjusting the winding crown. The case further comprises a bottom 6 and a glass 7, the latter preferably being made of unbreakable material (cellon).

Le verre 7 et 1e fond 6 sont assembläs avec la carr ure 3 de maniere ä ce que les joints d'ajustemeiit soient pratiquement etan- ches ä 1'eau, ä 1'humidite et ä la poussiere. A cet äffet, 1e verre 7 offre la forme dune cuvette cylindrique dont 1e fond äst bombe, tan- dis que la partie cylindrique präsente nur tout son pourtour un rebord plat 8 formant une bride approximativement parallele au plan du verre. L'epaisseur du rebord plat 8 (bride) et de la paroi cylindrique äst plus faible que celle du fond bombe du verre. The glass 7 and the back 6 are assembled with the caseband 3 in such a way that the adjustment joints are practically sealed against water, humidity and dust. To this end, the glass 7 has the shape of a cylindrical bowl whose bottom is domed, while the cylindrical part has a flat rim 8 all around it forming a flange approximately parallel to the plane of the glass. The thickness of the flat rim 8 (flange) and of the cylindrical wall is lower than that of the domed bottom of the glass.

Le verre äst engage et fixe par sa bride Jans une rainure 9 de la carrure 3, au moyen dune bague de serrage 10 adaptee ä la carrure. The glass is engaged and fixed by its flange Jans a groove 9 of the middle 3, by means of a clamping ring 10 adapted to the middle.

Selon la prämiere forme d'execution (fig. 1), la bague 10 präsente un filetage et äst vissee dann la rainure 9 pourvue d'un taraudage correspondant 11. Entre la bride du verre et 1e fond de la rainure 9 äst intercalee une gar niture d'6taneb6it6 12, par exemple une rondelle ei) cuir, en uaoutchouc ou en tonte autre matiere plastique et 61astique. Lorsque la bague 10 est serree, la bride du verre, conjointement avec la garniture 12, est pres- s6e contre 1e fond de la rainure, ce qui assure 1'assemblage rc;ciproque de la carrure et du verre, de meme que 1'6tanch6it6 parfaite du Joint d'assemblage. According to the first form of execution (fig. 1), the ring 10 has a thread and is screwed into the groove 9 provided with a corresponding thread 11. Between the flange of the glass and the first bottom of the groove 9 is inserted a garter sealing material 12, for example a washer made of leather, rubber or any other plastic and elastic material. When the ring 10 is tightened, the flange of the glass, together with the gasket 12, is pressed against the bottom of the groove, which ensures the reciprocal assembly of the middle part and the glass, as well as the Perfect tightness of the assembly joint.

La bague 10 n'6tant pas en contact avec la garniture 12, cette derniere est preservee de la d6terioration rapide par frottement Tors du serrage de la bague. The ring 10 n'6tant not in contact with the gasket 12, the latter is preserved from rapid deterioration by friction Tors tightening the ring.

La seconde forme d'execution (fig. 2) se distingue de celle qui vient d'etre decrite, par 1e fait que la bague 10 est figee pai, un ajustement ä cran dans la rainure 9 de la carrure. Ici, la garniture d'6tancheite 12 est interca16e entre la bride 8 du verre et la bague 10, ce qui ne presente point d'incon- v6nient, puisque la bague 10 ne tourne pas. The second form of execution (fig. 2) differs from that which has just been described, by the fact that the ring 10 is fixed by a notch fit in the groove 9 of the caseband. Here, the gasket 12 is inserted between the flange 8 of the glass and the ring 10, which does not present any inconvenience, since the ring 10 does not rotate.

Le fond 6 du boitier est adapt6 sur la carrure 3 au moyen d'un ajustement ä Gran et comprime une garniture elastique d'etan- chdit6 13 logee dans une rainure 14 de la carrure. Dans ce but, 1e fond 6 pr6sente sur sa face interne un filet saillant 15, de sec- tion triangulaire, qui p6netre Jans la rainure 14 en comprimant la garniture 13. The back 6 of the case is adapted to the middle 3 by means of a Gran adjustment and compresses an elastic gasket 13 housed in a groove 14 of the middle. For this purpose, the bottom 6 has on its internal face a protruding thread 15, of triangular section, which penetrates the groove 14 by compressing the gasket 13.

L'etancheitd des Joints d'ajustement du fond 6 et de la couronne de remontoir peut eire r6alisee, bien entendu, par d'autres moyens, au gr6 du constructeur, 1'invention 6tant limit6e ä 1'assemblage r6ciproque de la carrure et du verre du boitier. The watertightness of the adjustment joints of the back 6 and the winding crown can of course be achieved by other means, at the option of the manufacturer, the invention being limited to the reciprocal assembly of the case middle and the case glass.

Claims

CLAIM Watch case, comprising a crystal assembled with the middle of the case, characterized in that the crystal has a flat rim, at least approximately parallel to the plane of the crystal and in the form of a flange, the crystal being engaged and fixed by this flange in a groove in the middle of the case, by means of a clamping ring fitted to said middle. SUB-CLAIMS 1 Watch case according to claim, characterized in that the clamping ring is screwed into the groove of the middle part and rests on the glass flange, a sealing gasket being arranged between said glass flange and the 1st bottom of the middle groove.

2 Watch case according to claim, characterized in that the clamping ring is adapted to the caseband by means of a Gran adjustment and bears on the flange of the crystal by means of a sealing gasket.

3 watch case according to claim, characterized in that the first glass is curved and that its cylindrical part and its flange have an RTI ID="0002.0273" WI="15" HE="4" LX="1402" LY=" 1437"> thinner than the domed part.