Patent ID: 8317407

Claim:
An optical connector plug with a shutter structured such as to be normally shut by an approximately sealing type shutter at a time when it is not fitted to an optical connector adapter, and to automatically open the shutter at a time when it is fitted to the optical connector adapter, the optical connector plug comprising: a rear stopper guide and an intermediate spring guide covering an upper side of a hold of the optical plug; and an outer cover covering a front outer periphery of the hold, wherein said outer cover can be pushed by the optical connector adapter so as to move rearward from a front end position of the hold of the optical plug to a rear end position, an inner side of the outer cover is provided with the shutter which can be swung from a lid close position to a lid open position, and the shutter can be automatically opened and closed by a shutter automatic opening and closing mechanism in accordance with a rack and pinion system, working with a rearward and forward movements of the outer cover.