This invention relates generally to flip-down type sunglasses which are generally worn in athletic competition. The sunglasses may be moved to a horizontal positon so that they do not obscure the wearer's vision. The glasses may be quickly flipped down into a vertical position to shield the eyes from the sun. While a variety of flip-down constructions have been known in the art, such constructions have been less than completely satisfactory in that the structures required for the mounting and positioning the moveable visor have been difficult to inexpensively mass produce.
Generally speaking, in accordance with the invention, an improved construction for flip-down sunglasses is provided. The sunglasses have a fixed part which extends across the wearer's forehead and is attached by the use of earpieces and an elastic strap. Pivotedly mounted to the fixed part is a moveable part carrying a sun visor which may be flipped down by the wearer as desired. The moveable part has a pair of ribs which engage a groove carried on a flexible arm integral with the fixed part. The grooves engage the ribs to position the glasses either horizontally or vertically with respect to the wearer's face.
Accordingly, it is an object of this invention to provide an improved flip-down sunglass construction that may be inexpensively manufactured.
It is another object of this invention to provide an improved flip-down sunglass construction that may be manufactured using molding processes.
It is a further object of this invention to provide an improved flip-down sunglass construction that is relatively lightweight.
Still other objects of this invention will become apparent upon the reading of the detailed specification to follow.