Safety spectacles

Claim 1

In safety spectacles comprising two eye rims having end portions and on the inside of which lens grooves are provided, a one-piece bridge connecting the eye rims, fixed hinge sections on the outside and at the back of the end portions, nose pads on the inside and at the back of the eye rims, two side pieces having hinge sections hinged to the above-mentioned hinge sections, the improvement comprising: an inner frame of a hard plastic material extending in one piece from one hinge section to the other, through the upper parts of the eye rims and the bridge, said inner frame having a surface of natural roughness whereby a foam covering will securely adhere thereto, the base plates of the hinge sections being embedded in the inner frame, and a fine-celled polyurethane foam shape-defining exterior shell covering the inner frame several millimeters thick, determining the contour and shape of the spectacles independently of the inner frame, the inner frame not dictating the shape of the exterior shell and not emerging anywhere except at the lens grooves, the polyurethane foam being homergenous, soft and elastic and forming and defining deflectable nose pads without internal stiffening members.