Spectacle frames with removable tinted lenses

Claim 2

A spectacle frame having permanent fixed lenses and a lens holding portion surrounding each permanent lens and provided with a pair of substantially opposed abutment means which in their entirety are integral and form one piece with said lens holding portion such that an additional tinted flexible plastic lens having an outline corresponding to said lens holding portion and provided with appropriate curvature can be engaged with one of said abutment means and thereafter snapped past the other to be retained in position on the lens holding portion between said pair of abutment means and the permanent lens, said pair of abutment means extending rearwardly from the remainder of each lens holding portion so that each additional lens is situated behind a permanent lens, said pair of abutment means respectively forming an integral part of each lens holding portion at an inner peripheral region thereof adjacent a bridge of the frame and an integral part of each lens holding portion at the region of a temple hinge of the frame, with the abutment means at the region of said temple hinge having the configuration of a boss, and both of said abutment means having inner surface regions directed inwardly toward a central part of each lens holding portion, and said surface regions being undercut for overhanging said permanent lens and an edge region of each additional lens to retain the latter temporarily in position behind each permanent lens.

Claim 3

A spectacle frame as claimed in claim 1 wherein said pair of abutment means are thicker than the remainder of each lens holding portion and each being provided with a sloping undercut surface overhanging the permanent lens.

Claim 4

A spectacle frame having a pair of lens holding portions and a pair of permanent lenses fitted therein, respectively, in combination with a pair of additional flexible, resilient tinted plastic lenses releasably retained in position respectively on said lens holding portions of the frame behind said permanent lenses, respectively, so as to be readily removable therefrom, means being provided to facilitate such removal, each of said lens holding portions having an inner peripheral region adjacent a bridge of the frame and an outer peripheral region adjacent a temple hinge of the frame and each lens holding portion having respectively at said inner and outer peripheral regions thereof a pair of integral abutment means which in their entirety form one piece with each lens holding portion and which extend rearwardly from the remainder of each lens holding portion, and said pair of abutment means of each lens holding portion respectively having inner surface regions directed inwardly toward a central part of each lens holding portion and being undercut, with said surface regions overlapping opposed edge regions of said tinted lenses so that the latter are releasably held by said lens holding portions behind said permanent lenses, each of said flexible resilient tinted plastic lenses being capable of flexing past one of said abutment means of each lens holding portion while being engaged between the other of the abutment means thereof and the permanent lens for attaching the tinted lenses to and removing them from the lens holding portions.

Claim 5

A spectacle frame having a pair of lens holding portions and a pair of permanent lenses fitted therein, respectively, in combination with a pair of additional flexible, resilient tinted plastic lenses releasably retained in position respectively on said lens holding portions of the frame behind said permanent lenses, respectively, so as to be readily removable therefrom, means being provided to facilitate such removal, each of said lens holding portions having an inner peripheral region adjacent a bridge of the frame and an outer peripheral region adjacent a temple hinge of the frame and each lens holding portion having respectively at said inner and outer peripheral regions thereof a pair of integral abutment means which in their entirety form one piece with each lens holding portion and which extend rearwardly from the remainder of each lens holding portion, and said pair of abutment means of each lens holding portion respectively having inner surface regions directed inwardly toward a central part of each lens holding portion and being undercut, with said surface regions overlapping opposed edge regions of said tinted lenses so that the latter are releasably held by said lens holding portions behind said permanent lenses, each of said flexible resilient tinted plastic lenses being capable of flexing past one of said abutment means of each lens holding portion while being engaged between the other of the abutment means thereof and the permanent lens for attaching the tinted lenses to and removing them from the lens holding portions.

Claim 6

The combination claimed in claim 3 wherein a portion of each additional lens projects over the lens holding portion of the frame to constitute said means to facilitate removal of each additional lens.

Claim 7

The combination of claim 4 and wherein except for said portion of each additional lens which projects over each lens holding portion, the remainder of each additional lens is surrounded by said lens holding portion including upper and lower regions of the latter.

Claim 8

The combination of claim 5 and wherein said portion of each additionAl lens which forms said means facilitating removal thereof is situated at the region of the abutment means which is situated at the outer peripheral region of each lens holding portion adjacent the temple hinge.

Claim 9

The combination of claim 6 and wherein said portion of each additional lens which forms said means to facilitate removal thereof includes only an ear extending over said abutment means adjacent each temple hinge.

Claim 10

The combination of claim 7 and wherein each additional lens has extending downwardly from said ear an elongated substantially straight edge portion.

Claim 11

The combination of claim 5 and wherein said portion of each additional lens is situated above and below said abutment means adjacent each temple hinge.