Patent ID: 7621676

Claim:
An optical connector comprising: a receptacle body including a front opening into which another optical connector is to be inserted and fit and a chamber communicating with the front opening and opened backward, the receptacle body having an engage hole formed in a peripheral wall surrounding the chamber, the engage hole communicating with the chamber; a pigtail body including a box-like base body and a receptacle cylinder protruding from a front surface of the base body, the base body being contained in the chamber, the receptacle cylinder being positioned in the front opening, a locking protrusion provided in the base body engaging in the engage hole to attach the pigtail body to the receptacle body; a ferrule assembly including an optical fiber cable and a ferrule attached to a terminal of the optical fiber cable, the ferrule assembly being inserted in a container formed and opened backward from a rear of the chamber in the base body, and a front end of the ferrule being inserted and positioned in the receptacle cylinder; a spring including a base and a pressing piece extended from one end of the base and bent, the spring made of a plate spring material inserted in the base body through an opening formed in the base body in a direction orthogonal to an insertion direction of the ferrule assembly to communicate with the container, the pressing piece pressing the ferrule forward; wherein an L-shaped stopper is formed in the spring as an integral part of the spring; the stopper includes an extended part extended from an other end of the base in the insertion direction and a locking part formed by bending an end of the extended part; the extended part is sandwiched between the peripheral wall and the base body; the locking part passes through a window formed in the base body and is positioned in a recess formed in an outer surface of the ferrule; and movement of the ferrule assembly in the direction in which the ferrule assembly is pulled out from the base body is restricted by the locking part positioned in the recess.