Manufacturing method for spectacles and spectacles obtained...

G - Physics – 02 – C

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G02C 5/00 (2006.01) B21F 1/00 (2006.01) B21F 45/00 (2006.01) G02C 13/00 (2006.01)

Patent

CA 2304449

Manufacturing method for spectacles with the use of at least a first and a second portion of profiled wire of preferably metallic material, and shaped means having the same form and a size slightly greater than that of the lenses, screens, or filters. Method in which said first and second wire portion are submitted in succession to different operative phases, in which they are adapted around said shaped means so as to form the frame half-portions, which are shaped around said shaped means with the same outline of the lenses, screens, or filters, in which the frame half--portions are joined to the respective bars through articulation means which are attached to the corresponding frame half-portions, which are submitted, together with said bars, to possible adequate protective chemical treatments, and in which the frame half-portions are applied onto the lenses, screens or filters, and the bars are equipped with the respective terminal elements, and afterwards the nosepiece element is applied onto the assembly frame half-portions, lenses, screens or filters, by tightening it together.

Cette invention a trait à un procédé de fabrication de lunettes optiques, lequel procédé repose sur l'emploi d'au moins deux segments de fil profilé (15, 16), métalliques, de préférence, et de gabarits façonnés (19, 20), de même forme que les verres, écrans, filtres et analogue, mais légèrement plus grands que ceux-ci. Dans le cadre de ce procédé, les deux segments de fil profilé (15, 16) sont soumis, successivement, à différentes opérations d'usinage au cours desquelles ils sont ajustés sur les gabarits façonnés (19, 20) de manière à former les moitiés de face de monture (33, 34), les gabarits servant à façonner ces moitiés de face de monture à la forme des verres, écrans, filtres et analogue. Ces moitiés de face de monture (33, 34) sont ensuite reliées à leurs branches respectives (50) au moyen de charnières (39, 40) ajustées. Les moitiés de face et les branches (50) sont alors soumises à tous les traitements chimiques de protection appropriés et souhaitables. Ces moitiés de face de monture (33, 34) sont ensuite équipées des verres, écrans, filtres et analogue et les branches (50) sont munies des pièces de finition appropriées. La pièce constituant le nez (59) de la monture est ensuite mise en place sur l'ensemble formé par les moitiés de face (33, 34) et les verres ou écrans ou filtres ou analogue, cette dernière opération rendant les différents éléments solidaires les uns des autres et les assujettissant.

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