Adjustable spring loaded eyeglass bow

Details Adjustable spring loaded eyeglass bow Adjustable spring loaded eyeglass bow

1991-10-04

1992-11-17

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

G02C 514

Patent

active

051650606

ABSTRACT:
An adjustable eyeglass bow includes an elongated metal bow and a molded plastic connector seat having a rear end provided with a socket to securely receive one end of the elongated metal bow and a front end provided with a longitudinal blind bore. A washer divides the blind bore into an outer receiving chamber and an inner receiving chamber. A bolt piece is disposed in the blind bore and has a head portion extending into the inner receiving chamber and a threaded end portion passing through the washer and into the outer receiving chamber. A hinge piece includes a shaft portion slidably extending into the outer receiving chamber and having a rear end provided with an axial screw socket to engage the threaded end portion of the bolt piece. The hinge piece further includes a rounded pivot projection formed on a front end of the shaft portion and extending out of the outer receiving chamber to permit the mounting of the adjustable eyeglass bow onto a lens frame. A compression spring is disposed inside the inner receiving space and biases the bolt piece in order to pull the hinge piece inwardly into the outer receiving chamber. No welding operation is employed to assemble the adjustable eyeglass bow, thereby obviating the presence of scars.

REFERENCES:
patent: 4005930 (1977-02-01), Guenin

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