Ferrule holding structure for optical connector component

A ferrule holding structure of an optical connector component comprising a ferrule for receiving an end portion of a core optical fiber of a fiber optic cable, a flange mounted on the peripheral of the ferrule, and a one-piece plug frame for floatingly supporting the ferrule having the flange mounted thereon, the ferrule holding structure comprising the flange and the plug frame, wherein:

• each of the flange and the plug frame is provided with respective engagement portions, wherein the engagement portions of the flange and the engagement portions of the plug frame are mutually engaged when the ferrule is fully inserted in the plug frame,
• the flange has such resiliency that it is reduced in diameter by a radial and inward force exerted through the engagement portions of the flange as the ferrule is inserted into the plug frame from one end thereof, and the flange is restored to the original condition present before the insertion when the respective engagement portions of the flange and the plug frame are mutually engaged, and
• the flange is provided with an adhesive injection hole in the peripheral wall thereof and an enlarged diameter recess portion at one end thereof, and when an adhesive is injected into the adhesive injection hole after the flange is mounted on the ferrule, then the adhesive flows between the flange and the ferrule and reaches the enlarged diameter recess portion.