| 摘要 |
A spectacle frame includes sliding hinges which enable the arms to move from a stable open position, in which the end ( 306 ) of the arms is parallel to the end ( 313 ) of the endpiece ( 307 ), to an unstable wide-open position, by pivoting around a support point ( 311 ) belonging to a coincidence plane (P,P') which passes between the knuckles (C 1 , C 2 ) of the hinges. The frame, which has a plane of symmetry (X,X'), is characterised in that the support point ( 311 ) is located closer to the plane of symmetry (X,X') of the frame than the outer face ( 309 ) of the arms at the coincidence plane (P, P'). |
