Title: Spectacle hinge

Abstract: A hinge for spectacles includes two parts, the first of which has a cam profile provided by one face of a strip of generally U-shape, the other part comprising a cam follower button of generally rectangular shape. The first part of the hinge is made of a ductile metal whereas the strip providing the cam profile is made of a material having a greater hardness than the first part of the hinge. A spring urges the cam follower button against the cam profile which has a relatively large surface for supporting the face of the button.

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Inventors: Zellweger, Conrad (Chene-Bougeries, CH)
Biondina, Joseph (Bernex, CH)

Application Number: 969330
Filing Date: 1978-12-14
Publication_date: 1980-09-16
Assignee: La Nationale S.A. (Geneve, CH)
Primary Class(es): 16/228 16/293, 351/113
Other Classes:
US Patent Ref:

3064530	Nov, 1962	Vigano	16/113.
3644023	Feb, 1972	Villani	16/128.
3957360	May, 1976	Villani	16/128.
4084889	Apr, 1978	Vischer	16/128.

Other Refs:
Primary Examiner: Krizmanich, George H.
Assistant Examiner:
Attorney: Groff, Jr.; Emory L.