HINGE JOINTS FOR BOWS OF RIMS OF GLASSES AND BOW ATTACHING PAWLS

摘要

PURPOSE: To prevent a temple from unintentionally falling from a temple fitting claw. CONSTITUTION: The hinge joint between the temple 1 of the rim and a bow fitting claw 3 of the spectacles has a hinge projection piece 5 which engages a reception pocket 7 for the temple 1, which is added to the abutting surface 4 of the temple fitting claw 3 facing the temple 1 and is opened to inside of the temple, and the hinge projection piece 5 has two shaft necks 6 forming a hinge axis; and those shaft necks 6 engage a bearing-recessed part 8 of the receiving pocket 7 like a spring lock and a lead-in groove 8 for the shaft neck 6 having an entry angle which extends to inside the temple from the bearing- recessed plate 8. The lead-in groove 9 extends away from the outside edge 10 of the temple 1 abutting against the abutting surface 4 of the bow fitting claw 3.