Safety spectacles

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.