CH299426A

CH299426A - Waterproof watch box.

Info

Publication number: CH299426A
Authority: CH
Inventors: Piquerez Erwin
Original assignee: Piquerez Erwin
Priority date: 1952-05-12
Filing date: 1952-05-12
Publication date: 1954-06-15

Description

  

  Boîte de montre étanche.    La présente invention a pour objet une  boîte de montre étanche comprenant deux  pièces emboîtées l'une     dans    l'autre avec inter  position d'une garniture de joint; cette boîte       est    caractérisée par le fait que ladite garni  ture est, avant son serrage, de section droite  sensiblement triangulaire et prend appui par  une de ses faces contre l'une     desdites    pièces et  par l'arête opposée à ladite face contre l'autre  pièce:  Le dessin annexé représente, à titre  d'exemple, une forme d'exécution de l'objet   < le l'invention.  



  La     fig.l    est une coupe axiale partielle  d'une boîte de montre, et  la     fig.    2 est une coupe du joint séparé.  La boîte de montre représentée comprend  une carrure 1 dans un rebord     1a    de laquelle  est vissé un fond 2. Une garniture de joint 3  est interposée entre la tranche 4 du rebord     2a     du fond et l'épaulement intérieur 5 de la car  rure.

   Cette garniture, destinée à assurer  l'étanchéité entre le fond et la carrure,     est    de  section droite sensiblement triangulaire: deux  angles du triangle ont été abattus en 6 et 7  de façon à constituer deux facettes paral  lèles permettant d'encastrer la garniture- de  joint dans une rainure annulaire 8 pratiquée  dans la face 5 de la carrure; la garniture reste  ainsi à demeure sur la carrure et ne la quitte  pas lorsque le fond est ôté. Ce dernier prend



  Waterproof watch box. The present invention relates to a waterproof watch case comprising two parts fitted one inside the other with the interposition of a gasket; this box is characterized by the fact that said lining is, before it is tightened, of substantially triangular cross section and bears by one of its faces against one of said parts and by the edge opposite to said face against the other part : The appended drawing represents, by way of example, an embodiment of the object <the invention.



  Fig.l is a partial axial section of a watch case, and fig. 2 is a section through the separate seal. The watch case shown comprises a caseband 1 in a rim 1a of which is screwed a back cover 2. A gasket insert 3 is interposed between the edge 4 of the rim 2a of the back cover and the inner shoulder 5 of the case.

   This gasket, intended to ensure the seal between the back and the middle part, has a substantially triangular cross section: two angles of the triangle have been cut down at 6 and 7 so as to constitute two parallel facets allowing the gasket to be fitted. seal in an annular groove 8 made in the face 5 of the caseband; the trim thus remains permanently on the caseband and does not leave it when the caseback is removed. The latter takes

Claims

CLAIM Watertight watch case, comprising two parts fitted into one another with interposition of a gasket lining, characterized in that said gasket is, before it is tightened, of substantially triangular cross section and is supported by one of its faces against one of said parts and by the edge opposite. said face against the other part. SUB-CLAIMS 1. Watch case according to claim, in which the caseback is screwed into the caseband, characterized in that the edge of the caseback rim bears on said edge of the seal while the opposite face of this lining is supported on an inner shoulder of the middle part. 2.

Watch case according to claim and sub-claim 1, characterized in that the gasket lining is partially embedded in an annular groove made in said shoulder of the middle part. support by its face 4 on the annular ridge 9; opposite to the face 10 of the trim 3 bearing on the caseband. The lining 3 could be made of a plexigum brand product or even of metal, in particular of a soft metal.