GRAVITY HINGE HAVING FINGER-CATCHING PREVENTIVE FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a gravity hinge in which an opening is not formed between an upper butterfly piece and a lower butterfly piece even when the upper butterfly piece is lifted in the gravity hinge mounted so that an opened and closed door is returned to an original state by the working of its own weight. SOLUTION: A cap 4 is installed rotatably at the lower end of the shaft section of the upper butterfly piece 2, the cap 4 is fitted to the shaft section 6 of the lower butterfly piece 1 and the blade 10 of the lower butterfly piece 1 is fitted into a slit groove 8 formed to the side face of the cap.