| 摘要 |
A flexible hinge for resiliently connecting the arms and the front portion of a pair of spectacles is described which consists of a shaped wing, by means of suitable connecting members, to the arms, the shaped wing being provided with a housing in which a pressure cylindrical spring is housed. A lever arm is pin pivoted to the end of the wing, the lever arm being provided with a lug capable of engaging with the cylindrical spring, the lever arm being pivoted to the front portion of the spectacles pair, by means of a second pin. In this manner, the arms connected to the front portion of the spectacles pair are capable of being spread apart, by exercising a slight outwardly directed pressure. |
