| 摘要 |
A hinge for elastically articulating a leg (2) to the face frame (3) of an optical frame comprises a first hinge member (4) attached to the face frame (3) and shaped exteriorly as a cam profile (6a,b), a second hinge member (5,10) guided telescopically over the leg (2) and biased by a spring (22) toward a retracted position within the leg (2), and a shoe (25) attached to the leg (2) and biased, through the spring (22), against the cam profile (6a,b) of the first hinge member (4). The shoe (25) and spring (22) are both made to abut against a shoulder (16) formed on the leg (2) integrally therewith. |
