Hinge structure and bearing member for hinge in frame of spectacles
AssigneeMasunaga Optical Mfg. Co., Ltd.
InventorSatoru Masunaga
Life of this patent
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Abstract
This invention relates to a hinge structure in a frame of spectacles, wherein a bearing member having a pair of shaft insertion portions is mounted to a lens frame, a bifurcate member having shaft portions is fixed to an end of a temple to be in parallel with the temple, the shaft portions are respectively inserted into the shaft insertion portions such that the bifurcate member is horizontally movable, and a release prevention member is interposed inside the bifurcate member. Even if an external force is applied to a distal end of the bifurcate member, the bifurcate member is never released from the bearing portion, and smooth opening and closing functions of the temple may be guaranteed for a long period of time.
Claims8
A hinge structure in a frame of spectacles, comprising:
- a bearing member having a pair of shaft insertion portions arranged substantially coaxially at a predetermined interval, and mounted to a lens frame;
- an elastic metal bifurcate member having both ends respectively provided with shaft portions bent in an opening direction, and fixed to the end of a temple to be in parallel with said temple;
- said shaft portions of said bifurcate member being inserted into said shaft insertion portions so that said bifurcate member is horizontally movable within an opening range of about 90.degree. with respect to said lens frame;
- and
- a release prevention member interposed inside said bifurcate member.
Dependencies are inferred from the claim text.