Patent ID: 6116732
Filing Date: 2000-09-12
Classification: G02C

Abstract:
An interlockable magnetic shelter frame for mounting on a primary spectacle frame which comprises a frame body for mounting a pair of lenses in position, wherein said frame body comprises a primary bridge connected between said two lenses and two side extensions provided at two outer sides of said lenses respectively;each of said side extensions having a hinge portion extended rearwardly therefrom for pivotally coupling a temple, and an engagement means provided on a rear side thereof;said shelter frame, which supports two auxiliary lenses thereon, comprising a bridge extended between said two auxiliary lenses, two side interlocking means which are provided at two outer sides of said two auxiliary lenses respectively for interlocking with said two side extensions of said frame body of said primary spectacle frame so as to securely mount said shelter frame on said primary spectacle frame;each of said interlocking means comprising a supporting arm extended rearwardly for riding on top of said respective side extension of said body frame of said primary spectacle frame, and a magnetic seat downwardly connected from said supporting arm for magnetically attracting from behind said respective side extension and engaging with said respective engagement means of said respective side extension so as to securely mount said shelter frame in front of said primary spectacle frame;wherein said two engagement means comprise two engaging members integrally protruded from said two rear sides of said two side extensions respectively, and that an engagement groove is formed on a front face of each of said two magnetic seats, wherein said two engaging members are arranged to fittedly engage into said two engagement grooves when said shelter frame is mounted in front of said primary spectacle frame so as to further interlock said shelter frame with said primary spectacle frame by preventing upward, downward, leftward, and rightward movements of said shelter frame.