Patent ID: 7735193
Filing Date: 2010-06-15
Classification: G02C,Y10T

Abstract:
1. A spring hinge for spectacles comprising: (a) a housing having a longitudinal direction and a housing recess having a female thread; (b) a coiled spring coaxial to the female thread extending in the longitudinal direction; (c) a hinge part guided displaceably in the housing in the longitudinal direction, said hinge part comprising a passage opening extending in the longitudinal direction coaxially to the coiled spring and a U-shaped sliding part extending in a displacement direction of the hinge part, engaging in the housing recess, and comprising first and second legs and a web connecting said first and second webs; and (d) a buttress screwed through the passage opening into the female thread; wherein said coiled spring is received between said first and second legs and has a hinge-side end supported on the buttress and an opposite end supported on the web connecting the first and second legs of the U-shaped sliding part.