Patent ID: 6213037
Filing Date: 2001-04-10
Classification: D05C,D10B

Abstract:
A headgear frame comprising: a cylindrical receiving frame adapted to be fitted in a headgear; and a holding band adapted to be wound on the outer side of the headgear for clamping the headgear between itself and the receiving frame, said holding band being hinged at its one end to a hinging portion in the vicinity of the receiving frame and being removably hooked at its other end by a hooking portion in the vicinity of the receiving frame,wherein the improvement resides: in that the hooking portion in the vicinity of the receiving frame and the other end of said holding band are relatively provided with a combination of a hooking member and a pair of regulating members forming a V-shaped angled side face with the hooking member on both sides of said hooking member, and a ring adapted to be hooked by said hooking member; and in that when said ring is hooked by the hooking member, it bites into the V-shaped angled side face so that it is not dislocated with respect to the hooking member.