Earpiece-less Eyeglass Apparatus and Strap Attachment Mechanism

• Main Author: CARTER TROY L
• Format: Patent
• Language: English
• Published: 26.03.2015
• Subjects: CONTACT LENSES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

An earpiece-less eyeglass apparatus and retainer-strap attachment mechanism. First and second attachment mechanisms are mounted on each side of a lenticular frame. Each attachment mechanism includes a stemball assembly, a socket housing, and a spring. The stemball assembly includes a shaft, a narrow neck, and a ball. The socket housing includes a primary socket, a secondary socket, and a narrow slot joining the primary and secondary sockets. The spring is mounted within the primary socket and the slot, and is shaped to form a rounded portion within the primary socket and a narrow restriction portion within the slot for receiving, respectively, the ball and the neck of the stemball assembly. The narrow restriction portion locks the ball into the secondary socket without placing stress on the housing when the neck of the stemball assembly is slid through the slot, moving the ball into the secondary socket.