| 摘要 |
<p>Spectacles frame with resiliently openable arms, comprising at least one attachment piece (3) and at least one arm (2) articulated on the said attachment piece by tie means hinged to the attachment piece and connected sliding to the arm, resilient means being active between the said arm and the said tie means in order to stress the arm towards the attachment piece. The frame comprises in each arm (2), a pair of ties (5) spaced apart and articulated to the attachment piece (3) around a common hinge axis (Y), a pair of helical springs (12), each spring being active between the arm (2) and one of the ties (5), the springs developing in a chiefly longitudinal direction (K) corresponding to the direction of application of the resilient stress, axes (L) of the coils (12a) of the springs (12) being inclined in relation to the longitudinal direction, so as to confer upon the springs a substantially flattened configuration transversely to the said longitudinal direction, a pair of tubular housings (13), each spring (12) being respectively accommodated in one of the said housings (13) in which the corresponding tie (5) is guided sliding, a distance piece (19) interposed between the said tubular housings (13), onto which are connected corresponding end pieces of each of the springs (12) and from which extends an end piece of the arm.</p> |
