Patent ID: 7153035

Claim:
An optical connector plug engagable in a push-pull manner, comprising at least a plug frame which supports a ferrule for supporting an optical fiber and a grip member for supporting the plug frame therein, wherein the grip member includes an inner barrel and an outer barrel, which are freely slid with respect to each other, the grip member having a reduction state where the inner barrel is accommodated in the outer barrel and an extension state where the inner barrel projects forwardly, and the plug frame being engaged and supported such that the plug frame is movable by a predetermined amount with respect to the outer barrel, at a leading end inside the inner barrel are provided a shield plate supported at a free slant with respect to the inner barrel via a base end of the shield plate, disposed at a shield position at which a leading end of the ferrule is shielded in the extension state, and disposed at a non-shield position at which accommodation of the plug frame in the inner barrel is allowed, an action plate supported at a free slant inside the shield plate via a base end of the action plate and inclined along with the shield plate with a leading end of the action plate contacting or engaged with the shield plate, and a biasing supporting means for biasing the shield plate to position the shield plate such that the shield plate is disposed at the shield position in the extension position state, the shield plate is moved from the shield position to the non-shield position by the relative movement between the inner barrel and the plug frame from the extension state to the reduction state, the grip member has a shape engaged with an optical connector adapter in the reduction state and an engagement portion provided on the circumference of a leading end of the plug frame is engaged with an engagement click of the optical connector adapter to be in an optical coupling state, and on the circumference of the outer barrel is provided an engagement release portion for pressing the engagement click to disengage the engagement click from the engagement portion by retreating only the outer barrel by a predetermined amount from the optical coupling state.