MECHANICAL ELASTIC STRUCTURE GLASSES WITHOUT METAL SPRING CORES AND WITHOUT METAL SCREWS
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
Apr 26, 2023
filing date -
Jan 3, 2023
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Abstract
An eyeglasses hinge replaces metal screws and spring cores. The hinge is included in mechanical elastic structure glasses without metal spring cores and without metal screws and include a frame, a temple and a fixed rotating shaft. The two ends of the frame are fixed with two teeth, and the front end of the temple is fixed with three teeth. The two teeth at both ends of the frame fit the three teeth at the front end of the temple, and the fixed rotating shaft runs through the two teeth and three teeth. Even if consumers are allergic to metal, they can wear them safely and securely. While achieving the elastic function of the metal spring, these glasses avoid the risk of metal accessories causing allergy to human skin and the problem of metal screws falling off. And it has a simple structure, which can improve productivity.
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