| 摘要 |
A resilient hinge for a spectacle frame includes an inner male or female knuckle (1) attached to the end of a frame lug (3) and an arm (5) substantially placed in the prolongation of the lug (3) and abutting on said lug when in the normally open position. The inner side of the arm (5) is connected to the knuckle (1) by means of a rigid return part (6) which can pivot freely about the knuckle and bend while being displaced. The pivot point of the return part around the knuckle axis or the knuckle axis itself is floating and can move between two extreme positions. The knuckle (1) and the end of the lug (3) are placed side by side to create an outer recess, so that the arm (5), when it has been moved beyond its normal open position, is in pivot contact (P) against the end of the lug (3) acting as a stop and thus biasing the return part (6) in flexion (F), which causes the arm (5) to be brought back to its normal open position. The knuckle (3) may have a shape (S) acting as a cam against which the arm (5) rests when it is opened or closed, which together with the return part (6) defines two stable rest positions, a normal open position and a closed position, the arm (5) being brought back against the spectacle frame front in the closed position.
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