Patent ID: 6464354
Filing Date: 2002-10-15
Classification: G02C

Abstract:
Protective eyeglasses comprising lens means having laterally opposed ends, a pair of elongated molded plastic temple assemblies, and mounting means mounting said temple assemblies one on each said laterally opposed ends for pivotal movement about a vertical axis, each said temple assembly including first and second temple members each having opposed ends and hinge means connecting said temple members in end-to-end relation for limited relative movement about a horizontal axis, said hinge means including a bifurcated end on one temple member providing a pair of laterally spaced flanges having opposed, parallel generally vertical surfaces and an integrally molded cylindrical hinge pin extending between and perpendicular to said parallel surfaces, and a generally flat tongue molded with and projecting from the other said temple member, said tongue having opposed flat faces dimensioned to be received in close fitting relation between said parallel flange surfaces, a pair of opposing arms on said tongue defining a generally C-shaped clamp opening extending into the tongue in position to snap over and receive said hinge pin, said C-shaped opening having a surface defined by an arc of a circle extending for more than 180Â° therearound with the arcuate surface having a radius substantially equal to the radius of said cylindrical hinge pin, and angular adjusting means including a plurality of grooves formed on a flat surface adjacent and substantially parallel to at least one of said flat faces of said tongue at a location spaced from said arcuate surface, a resilient spring arm integrally molded at least with one of said flanges and extending generally perpendicular to the axis of said hinge pin, each said spring arm including a surface overlaying said grooves on one of said fiat surfaces, and detent means integrally molded on each said spring arm in position to engage said grooves when said temple members are snapped together, said spring arm resiliently urging said detent means into contact with said grooves to effectively retain said temple members in a selected position of relative rotation about said hinge pin to thereby permit the lens means to be adjusted about said horizontal axis.