Abstract: The present invention relates to a resilient hinge for spectacle frames. The hinge includes an inner male or female knuckle fixed to the end of a frame lug extending in a direction and an arm substantially in the extension of the lug and abutting against the lug when the arm is in its normal open position. The inner side of the arm is connected to the knuckle by means of a rigid return device which can rotate freely about the knuckle and operating by bending. The pivot point of the return device about the swivel pin of the knuckle or the swivel pin of the knuckle itself is flowing and able to move between two extreme positions respectively corresponding to the normal open position and to an additional position in which the arm is moved beyond the normal open position.

Abstract: An elastic hinge for a pair of spectacles is made, on the one hand, of a front-hinge element (10) securely fixed to a side lug (6) of the front part; and, on the other hand, of a side-hinge element (20) connected by elastic biasing means (12, 30, 40, 44) at the end of the side arm (8). The outer edge of the end (9) of the side arm (8) bears against a fixed heel (7) extending from the lug (6) or integral with the front-hinge element. This heel (7) extends beyond the axis (15) of the hinge by a distance (d) greater than 0.3 millimeters. Moreover, the side-hinge element (20) has, in its face directed towards the side arm, a recessed edge (32) which after rotation through a desired maximum angle (.theta.), comes to bear against the abutment-forming inside angled edge (5) of the heel (7).