Spectacle frames with spring-loaded hinges

Details Spectacle frames with spring-loaded hinges Spectacle frames with spring-loaded hinges

1974-09-26

1976-05-18

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

16128A, 351121, 351153, G02C 516, G02C 522

Patent

active

039573605

ABSTRACT:
A hinge portion of a spectacle frame of generally lightweight construction is provided with essentially thin and limited vision obstructing side pieces. The hinge comprises a cam bearing flat metallic component fixedly secured to the respective side end of the front piece of the frame, and a subassembly comprising a ball-shaped cam follower and a spring urging the follower against the cam, the follower and the spring being guidedly housed in an axial bore provided in an elongated metallic body secured to a metallic side piece or to a metallic core of a lightweight side piece, forming the fore and hinge portion of the side piece and a part of an unitary metallic external structure therefor.

REFERENCES:
patent: 2874609 (1959-02-01), Ducati
patent: 3837735 (1974-09-01), Guillet

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