| 摘要 |
PURPOSE: To make the parts of foldable spectacles common, and to house arms at upper and lower parts. CONSTITUTION: A first part 5 of an arm 4 is supported through a first hinge 6 at the side part of a lens frame 2. A second part 7 of the arm 4 is supported through a second hinge 8 by the first part 5. The first part 5 can be rotated on a face orthogonally crossing the lens frame 2, and the second part 7 can be rotated on the lateral face of the lens frame 2. Also, one arm 4 can be positioned at the upper side of the lens frame 2, and the other can be positioned at the lower side of the lens frame 2. |
