Patent ID: 6302539
Filing Date: 2001-10-16
Classification: G02C,Y10T

Abstract:
An eyeglass frame comprising:a lens frame having two opposite end portions, each of which is formed with horizontal top and bottom walls that are spaced-apart from each other so as to define an insert slot therebetween, one of said top and bottom walls being formed with a bow retaining hole communicated with said insert slot, the other one of said top and bottom walls being formed with a bow mounting hole communicated with said insert slot, said bow mounting hole including a first hole portion aligned with said bow retaining hole along a vertical axis, a second hole portion offset from said bow retaining hole, and a restricted intermediate hole portion formed between and intercommunicating said first and second hole portions, said intermediate hole portion being narrower than said first and second hole portions; anda pair of elongated bows, each of which has a bow section adapted to be hung on the ear of a user, and a mounting shaft extending from one end of said bow section, said mounting shaft being formed with a retaining protrusion for engaging said bow retaining hole in a respective one of said opposite end portions of said lens frame, and a mounting protrusion opposite to said retaining protrusion for engaging said first hole portion of said bow mounting hole, said mounting shaft being inserted into said insert slot in a respective one of said opposite end portions of said lens frame and being rotatable within said insert slot about axis of said mounting shaft from a disengaging position, in which said retaining protrusion and said mounting protrusion are disengaged from said bow retaining hole and said bow mounting hole, respectively, to an engaging position, in which said retaining protrusion moves into and engages said bow retaining hole and said mounting protrusion moves into and engages said first hole portion of said bow mounting hole, and in which the respective one of said bows is pivotable about said vertical axis for folding toward and unfolding from said lens frame, said mounting protrusion on said mounting shaft passing through said second hole portion and said intermediate hole portion of said bow mounting hole when said mounting shaft rotates from said disengaging position to said engaging position.