Hirose Electric Company, Ltd.

Honda Tsushin Kogyo Co., Ltd.

Sanwa Denki Kogyo Co., Ltd.

Nippon Telegraph and Telephone Corporation

Nippon Telegraph

Tateomi Matumoto

Yasuhiro Ando

Toshiaki Nakano

Kazunori Kanayama

Takashi Nishiyama

Akira Kawahara

Hiromasa Okamura

Ryo Nagase

Shin'ichi Iwano

Shin-Ichi Iwano

Toshiaki Furukawa

Kuniharu Katou

Tatuhito Shinozaki

A plug (2) that includes a plug frame (7) is inserted into an opening of a housing (4) and is retained by a pair of spring-like detent pieces (6) extending into the opening. Projecting portions (6a) on the detent pieces engage recess portions (15) on right and left hand sides of the plug frame. A cylindrical lug (13) is slidably mounted on the plug frame and includes an opening portion (14) and inclined surfaces (17) to permit plug removal. The inclined surfaces (17) serve as cams to lift the projection portions (6a) out of the recess portions (15) when the lug is moved rearwardly. A stopper (3) is insertable into the plug frame to block such rearward sliding motion of the lug on the frame to prevent removal of the plug from the housing. The stopper may include a locking inward projection (3d) for engaging a hole (13b) bored in the lug to block rearward motion of the lug on the plug frame. Alternatively, the stopper may include outwardly projecting resilient stepped pieces (3i, 3j) that fit into the hole in the lug (13). Rearward sliding motion of the lug on the frame is enabled by pressing the pieces (3i, 3j) inwardly.

Mechanism for preventing detachment of a plug

An adapter for an optical connector including securing first and second adapter elements which are opposed to each other and a sleeve holder having an alignment sleeve therein, which is sandwiched between said adapter elements, wherein each adapter element has a seat which is in contact with part of the sleeve holder for sandwiching said sleeve therebetween, the sleeve holder has a pair of metallic sleeve holder elements, one of the sleeve holder elements being pressure fitted to the other sleeve holder element so that it will not be moved relative the other sleeve holder element, the sleeve holder has on the periphery thereof in the intermediate position along the length thereof a flange which is complimentary in shape with the seat of each adapter element.

Adapter for optical connector having float-type sleeve holder and panel

Growing community of inventors

Chigasaki, Japan

Tateomi Matumoto