Spring-biased hinge assembly for spectacles

Details Spring-biased hinge assembly for spectacles Spring-biased hinge assembly for spectacles

1985-05-28

1986-10-21

Watts, Douglas D.

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

Hinge

Eyeglass hinge

351113, 351153, G02C 516, G02C 522

Patent

active

046176985

ABSTRACT:
This invention relates to a spring-biased hinge assembly for spectacles. The hinge assembly comprises a bow-side section defining a cavity, and a slider, which carries a bow-side hinge element and extends into the cavity and is adapted to be extended from said cavity against spring action. The bow-side hinge element cooperates with the midportion-side hinge element. The hinge assembly should be slender and should be accommodated to a large extent in the end portion of the bow. For this purpose, the cavity is defined by a flat tubular element, in which a tongue of the slider is slidably mounted. The tongue has a longitudinal slot, in which the return spring extends, which engages an abutment that extends into the wall of the tubular member and through said slot.

REFERENCES:
patent: 3567314 (1971-03-01), Speer
patent: 3567315 (1971-03-01), Speer
patent: 4005930 (1977-02-01), Guenin
patent: 4428094 (1984-01-01), Emain

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