Patent ID: 6336251
Filing Date: 2002-01-08
Classification: G02C,Y10T

Abstract:
An elastic hinge in a pair of eyeglasses, comprising:a front; a temple which has an end provided with an internal hollow body; a shaped element having an eyelet which is inserted between two other eyelets which are fixed to the front of the eyeglasses so as to form an articulation of said hinge; an internally hollow tubular element which has a longitudinal axis and which is inserted inside said hollow body of said temple such that said tubular element is rotatable with respect to said hollow body inside said hollow body substantially about said longitudinal axis of said tubular element and such said tubular element is substantially prevented from sliding relative to said hollow body in a direction of extension of said longitudinal axis of said tubular element, and said shaped element being inserted inside said tubular element such that said shaped element is substantially prevented from rotating with respect to sad tubular element about said longitudinal axis of said tubular element and such that said shaped element is free to slide relative to said tubular element substantially in the direction of extention of said longitudinal axis of said tubular element; a single spring inserted inside said tubular element and inside said hollow body, said spring having a first end which is fixed to a part of said shaped element located inside said tubular element, and said spring having a second end which is fixed to said hollow body, and said spring having an intermediate portion which is arranged between said first and second ends and which is fixed to said tubular element.