Sanwa Denki Kogyo Co., Ltd.

Matsushita Electric Works, Ltd.

Asahi Glass Company, Limited

Yasusuke Hioki

Yuji Watanabe

Takashi Tsukamoto

Tsuyoshi Hisano

Katsunori Kitagawa

Mikio Hojo

Kenji Furufuji

Katsuyuki Nakano

Norio Iguchi

Takashi Sato

Takuji Ishii

An inserting and extracting motion of an optical plug can be easily carried out via a knob, even in a narrow space. An optical connector plug is provided with a stopper guide in a rear portion of an upper surface of a knob to which an optical plug is installed, a spring guide, an outer cover which is provided in an outer surface of the knob, and a spring which is arranged in between the stopper guide and the outer cover. In the optical connector plug, the outer cover is pressed by an optical connector adapter so as to move backward while compressing the spring, whereby a shutter is opened and the optical plug is allowed to protrude forward from the outer cover. The optical connector plug is provided with a grip portion which protrudes up and down and right and left from a rear end portion of the knob.

Optical connector plug

For a less load to a shutter and secure motions of the shutter without damaging a ferrule, a rear stopper guide () and an intermediate spring guide () covering an upper side of a hold of an optical plug, and an outer cover () covering a front outer periphery of the hold are provided; the outer cover () is pushed by an optical connector adapter (Q) to move from a front end position of the hold to a rear end position, an inner side of the outer cover () is provided with a shutter () which can be swung from a lid close position to a lid open position, and the shutter () is automatically opened and closed by a shutter automatic opening and closing mechanism (S) in accordance with a rack and pinion system, working with rearward and forward movements of the outer cover ().

Optical connector plug with shutter

Adapter for optical connector

Optical fiber socket

An assembly comprising a plastic optical fiber socket attachable to three modules in accordance with JIS standards and a plug; the plastic optical fiber socket including a body having a plug inlet port, a port cover mounted to the body so as to be automatically openable, a receptacle mounted to the body for connection with a plastic optical fiber cable, and a tensile retainer engaged with the body for retaining the plastic optical fiber cable; and the plug including a housing, an engagement portion fixed to the housing for engagement with the receptacle, and a beam formed on the housing, the beam made of elastic material or having an elastic structure.

Assembly including an optical fiber socket and an optical fiber plug

Optical receptacle

Growing community of inventors

Tokyo, Japan

Yasusuke Hioki