CH246727A

CH246727A - Timepiece whose dial is covered with an unbreakable protective glass.

Info

Publication number: CH246727A
Authority: CH
Inventors: Etienne Albert
Original assignee: Etienne Albert
Priority date: 1944-11-22
Filing date: 1944-11-22
Publication date: 1947-01-31

Description

Piece d'horlogerie dopt 1e cadran est recouvert dune glase de protection incassable. Lobjet de 1'invention est une pike d'hor- logerie, par exemple une montre de poche, une montre-bracelet ou un autre instrument horaire portatif analogue uruni d'un cadran recouvert dune glase de protection en matiere incassable. Timepiece with 1st dial covered with unbreakable protective glass. The object of the invention is a timepiece, for example a pocket watch, a wristwatch or another similar portable timepiece having a dial covered with a protective glass of unbreakable material.

L'invention concerne 1'ajustement de la glase de protection et a pour but de rendre cet ajustement pratiquement etanche, c'est-ä- dire impermeable ä 1'eau et ä la poussiere, tout en facilitant, notamment au rhabilleur, je demontage de ladite glase. The invention relates to the adjustment of the protective glase and aims to make this adjustment practically watertight, that is to say impermeable to water and dust, while facilitating, in particular for the dresser, the disassembly of said ice.

A cet effet, 1e pourtour de la glase de pro- tection forme un talon plat s'etendant jointi- vement entre 1e bord du cadran et une lunette du boitier, dang un d,egagement correspon- dant de oette derniere, ledit talon presentant, Jans sa face exterieure, une rainure servant de siege ä une ga;rniture d'@tancheite com- pressible, par exemple une rondelle en caout- chouc, oette garniture etant comprimee et assurant 1'etancheite du joint de la glase avec la lunette lorsque oette dernike esst assujettie ä la carrure du boitier. To this end, the periphery of the protective glass forms a flat heel extending contiguously between the first edge of the dial and a bezel of the case, in a clearance corresponding to the last oette, said heel having, On its outer face, a groove serving as a seat for a compressible sealing gasket, for example a rubber washer, this gasket being compressed and ensuring the sealing of the joint of the glass with the bezel when This latest model is attached to the middle of the case.

Le dessin annexe represente, partiellement et ä titre d'exemple, une forme d'exkution, en coupe, de 1'objet de 1'invention. The attached drawing represents, partially and by way of example, a form of execution, in section, of the object of the invention.

Sur la carrure 1 du bosstier dune monire ronde est assujettie par un ajustement ä Gran 2, une lunette 3 presentant une ouverture ronde 4 et un degagement cylindrique 5, Dans 1a caTrure 1 est emboite, par des moyens habi- tuell, un mouvement de montre 6, de forme runde, supportant 1e cadran 7 qui est engage partiellement Jans 1e degagement 5 de la lunette. On the caseband 1 of the boss of a round monire is secured by an adjustment to Gran 2, a bezel 3 having a round opening 4 and a cylindrical recess 5. In the caseframe 1 is fitted, by usual means, a watch movement 6, runde shape, supporting the first dial 7 which is partially engaged Jans first clearance 5 of the bezel.

Le cadran est recouvert dune glace de protection 8 en matiere incassable, par egem- ple en resine synthetique. Lette glase com- prend une Partie centrale bombee et un bord , plat 8' formant talon. Ce talon 8', relative- ment epais et resistant, s'etend dang 1e de gagement 5 de la lunette, en prenant appui sur 1e bord du cadran 7; il presente, dang sa face exterieure., une large -rainure circulaire 9 . entourant ä; sa base la Partie bombee de la glase et formant 1e siege dune garniture d'etaneheite compressible 10, par exemple une rondelle en caoutchouc. Cette garniture amo- vible est dönc plack pres de 1'ouverture 4 de la lunette 3 et se trouve comprimee lorsque la lunette est assujettie au cran- de 1a carrure 1., de Sorte quelle assure 1'etancheite du joint de la glase avec la lunette. The dial is covered with a protective glass 8 in unbreakable material, for example in synthetic resin. The glaze comprises a domed central part and an 8' flat edge forming a heel. This heel 8', relatively thick and resistant, extends dang the first engagement 5 of the bezel, resting on the first edge of the dial 7; it presents, dang its outer face., a wide circular -groove 9. surrounding ä; its base the curved part of the glase and forming the first seat of a compressible sealing gasket 10, for example a rubber washer. This removable trim is therefore placed close to the opening 4 of the bezel 3 and is compressed when the bezel is fastened to the notch of the caseband 1, so that it ensures the tightness of the joint of the glass with the telescope.

Le talon 8' de la glase est engage, de pre- fbrence ä, frottement doux, dang 1e d6gage- meut 5 de la lunette, de maniere qu'on RTI ID="0001.0269" WI="11" HE="4" LX="1642" LY="1709"> puisse, apres avoir enleve de la carrure 1 la lunette 3, sortir la glase 8 avec la garniture 1G par 1e degagement 5, en exergant une legere Pres sion Sur la Partie bombee de la glase. La glase de protection etant separee de la lunette, il est fache de retirer de la rainure 9 la gar- niture d'etancheite 10 et d'y substituer une garniture de rechange. The heel 8' of the glass is engaged, preferably with gentle friction, in the clearance 5 of the bezel, so that one RTI ID="0001.0269" WI="11" HE="4" LX="1642" LY="1709"> can, after having removed the bezel 3 from caseband 1, take out the glass 8 with the trim 1G through the first clearance 5, by exerting a slight pressure on the domed part of the glass . Since the protective glass is separated from the bezel, it is necessary to remove the seal 10 from the groove 9 and replace it with a spare lining.

Il est ävident que 1'invention est 6ga'le- ment applicable, Gans aucune difficulte, aux muntres et autres pikes d'horlogerie dont 1e boîtier n'est pas de forme ronde, la glace de protection étant toujours conforme à la lu nette. It is obvious that the invention is also applicable, without any difficulty, to watches and other timepieces whose case is not round in shape, the protective glass always conforming to the clear bezel.

Toutefois, la lunette pourrait être vissée sur unie partie filetée de la carrure, lorsque ces éléments du boîtier sont de forme ronde comme dans l'exemple représenté au dessin. However, the bezel could be screwed onto a threaded part of the middle part, when these elements of the case are round in shape as in the example shown in the drawing.

Claims

CLAIM Timepiece provided -with a dial re-covered with a protective crystal of unbreakable material, characterized in that the periphery of the crystal forms a flat heel extending contiguously between the edge of the dial -and a bezel of the housing, in a clearance corresponding to the latter, said heel having, in its outer face, a groove serving as a seat for a compressible seal, this seal being compressed and ensuring the seal: of the joint of the glass with the bezel when the latter is attached to the caseband. SUB-CLAIMS: 1. Timepiece according to claim, characterized in that the middle of the crystal (8) is curved, the flat heel (8') of the crystal being adjusted in a removable manner, with gentle friction , in the clearance (5) of the net window (3).

2. Timepiece according to claim and sub-claim 1, characterized in that the groove (9) serving as a seat for the sealing gasket (10), is formed in the heel (8') at near the opening (4) of the bezel, at the base and around the domed part of the crystal.