| 摘要 |
<p>The elastic hinge for spectacles comprises a hollow cylindrical element (2), a base (3) which closes the end of the cylindrical element, friction elements (5) on the external surface of the cylindrical element (2) which ensure that it becomes anchored by pressure inside a cylindrical cavity provided in the spectacle frames (4). A rod (7) runs across the base and a disc (8) at one end of this rod moves axially within the cylindrical element in opposition to the action of the elastic systems acting between the disc and the base. The rod is articulated at its outside extremity w.r.t. the cylindrical element. A fork-shaped element (11) is provided at the end of one arm (12) of the spectacles.</p> |
