| 摘要 |
PURPOSE: An improved spring bridge mechanism of clip-on sunglasses attached to spectacles is provided to attach easily the clip-on sunglasses to the spectacles by using a sealed spring bridge mechanism installed between two lens units. CONSTITUTION: An improved structure of clip-on sunglasses includes first and second parts and a connecting part. The first and the second parts include first and second lenses(16,18), first and second rims(20,22) for surrounding partially the first and the second lenses, and first and second eyeglass coupling prongs(24,26,28,30) installed at the first and the second rims. The connecting part is used for connecting the first and the second parts which are moved between a proximate position and a remote position. The connecting part includes a first tubular member connected to the first rim of the first part, a second tubular member connected to the second rim of the second part, and a spring device for urging the first and the second parts to the proximate position. The spring device includes a first end connected to the first rim of the first part and a second end connected to the second rim of the second part.
|
