| 摘要 |
<p>The spectacle frame includes a frame front extended by two lateral tenons and two sides articulated to the tenons about articulation pins of two telescopic hinges, each with a frame front element fastened to a tenon and a side element fastened to a side, the side element of a hinge including a slide articulated to the frame front element and slidably mounted in a sheath against and subject to the action of a spring. The slide extends as far as the free end of the side, of tubular shape and providing said sheath, a sleeve, fixed to the end of the slide, being slidably mounted in the end of the side in which said spring also extends to cooperate with the sleeve.</p> |
