Patent ID: 7798637

Claim:
Elastic hinge element ( 10 , 110 , 210 ) for eyeglass frames, comprising: a longitudinal housing ( 21 ) comprising a guide zone ( 22 ), a slide ( 30 , 130 , 230 ) arranged in the housing along one longitudinal axis of translation, the slide comprising a rear part ( 33 ) with one end ( 50 ) arranged in the housing ( 21 ), a guided part ( 32 , 132 ) that works with the guide zone, and a knuckle ( 31 , 131 , 231 ) extending to outside the housing, and a return spring ( 40 ) of the slide mounted between a rear stop ( 50 ) and a front stop ( 60 ), characterized in that the spring ( 40 ) has compressibility that is sufficient to allow the guided part ( 32 , 132 ) of the slide to leave the guide zone ( 22 ), and in that the slide ( 30 , 130 , 230 ) can pivot around its longitudinal axis when the guided part ( 32 , 132 ) has left the guide zone so as to move the slide into a “locked-out” position that makes an operation of assembly or an operation of disassembly of the knuckle with a lug ( 80 , 180 , 280 ) easier.