Device for locking an interchangeable, length-adjustable spectac

Details Device for locking an interchangeable, length-adjustable spectac Device for locking an interchangeable, length-adjustable spectac

1995-11-14

1997-09-16

Mai, Huy

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

351116, G02C 520, G02C 514

Patent

active

056686196

ABSTRACT:
A sheath (2) constituting the fixed support of a lengthwise displaceable specatacle side-piece (1) is pierced by a plurality of round positioning holes (5) and a rectangular window (6) disposed in second position on the sheath, after the first positioning hole. The side-piece (1) bears, on the same face, a boss (7) having a rectangular head on a flexible end (9) of the side-piece, as well as another boss (8) having a round head on the rigid portion (10) of the side-piece. Application to spectacles with interchangeable side-pieces.

REFERENCES:
patent: 3556644 (1971-01-01), Stahl
patent: 4670915 (1987-06-01), Evans
patent: 4955708 (1990-09-01), Kahaney
patent: 5483303 (1996-01-01), Hirschman

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