Patent ID: 6283593
Filing Date: 2001-09-04
Classification: G02C,Y10T

Abstract:
A spectacles, comprising:a frame body for mounting a pair of lenses in position;a bridge connected between said two lenses;two side extensions provided at two outer sides of said lenses respectively each having said spring arm structure rearwardly extended; anda pair of replaceable spring arm structures, each comprisinga temple pivotally and detachably coupling with said respective side extension, wherein an elongated slider cavity is coaxially provided at a front end of said temple and at least a locking through hole is perpendicularly formed on said front end of said temple to communicate said slider cavity with outside,an elongated spring arm which has a front end pivotally connected to said respective side extension and is detachably disposed in said slider cavity in a slidably movable manner,a locking member slidably mounted on said spring arm for locking with said locking through hole so as to securely hold said spring arm in said slider cavity, anda resilient element which is mounted on said spring arm for applying an urging pressure against said spring arm, so as to normally retain said spring arm at an innermost position of said slider cavity,thereby during folding or unfolding said spectacles, said spring arms are driven to slide outwardly along said slider cavities by pulling forces applied by said temples so as to compress said resilient elements respectively, so that after said temples are folded up or unfolded, said compressed resilient elements automatically rebounded to original forms thereof and said spring arms automatically return to original positions thereof respectively.