Spectacle hinge

Details Spectacle hinge Spectacle hinge

1978-12-14

1980-09-16

Krizmanich, George H.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

351113, G02C 522

Patent

active

042221480

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.

REFERENCES:
patent: 3064530 (1962-11-01), Vigano
patent: 3644023 (1972-02-01), Villani
patent: 3957360 (1976-05-01), Villani
patent: 4084889 (1978-04-01), Vischer

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