Safety eyeglass frame

Details Safety eyeglass frame Safety eyeglass frame

G - Physics

02

C

G02C 1/06 (2006.01) G02C 5/00 (2006.01)

Patent

CA 2430059

An eyeglass frame particularly adapted for mounting a safety lens having a straight outer wall circumscribed by a groove is provided. The eyeglass frame includes a T-wire having a centrally disposed rib portion receivable in the lens groove, and a pair of oppositely extending rims flexibly cantilevered from the rib portion. Each of the rims includes a retaining wall that engages opposite ends of the outer wall of the lens in line contact. Each of the retaining walls is tapered relative to the outer wall of the lens so that the retaining walls can flex toward greater surface contact with the outer lens wall in response to hoop stresses generated by a shock to the lens, thereby increasing the amount of shock that the lens can absorb before becoming broken or dislodged from the T-wire of the frame.

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