Pull down member on temple of eyeglasses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Temples

Patent

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Details

351111, 351123, G02C 514

Patent

active

056233221

ABSTRACT:
A pull-down member is pivotably and ratchetly attached to the distal end of the end-piece of each eyeglass temple. Each pull-down member is pivotably displaceable to the end-piece at a series of angles, and thereby provides a snug fit of the eyeglasses on the user's face. In one embodiment, the pull-down member comprises a disk-shaped core having an edge on which is attached an elongated appendage which is the portion of the pull-down member abutting against the user's ear. The edge of the core also includes a series of notches which are biased by a ball and spring mechanism to provide the pivotable and ratchetable displacement of the pull-down member relative to the end-piece of the eyeglass temple. In another embodiment of the pull-down member, the core has a central opening defined by a series of teeth. A split-pin having a complementary series of teeth along an outer surface thereof engages the toothed opening of the core to provide the pivotable and ratchetable displacement of the pull-down member relative to the end-piece of the eyeglass temple.

REFERENCES:
patent: 2172959 (1939-09-01), Hirtenstein
patent: 4790645 (1988-12-01), Gish

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