Optical fiber connector with mutually engaging, oppositely tapered surfaces

Claim 1

A fiber optic cable connecting device for connecting a fiber optic cable to a connector having a receptacle, comprising: a fiber optic cable guide member including a fiber insertion portion having a first insertion bore for receiving said fiber optic cable, a fitting portion integral with said fiber insertion portion for being plugged into said receptacle, said fitting portion having a tip portion formed with a second insertion bore communicating with said first insertion bore for receiving a bare fiber of said fiber optic cable and a fiber fixing portion integral with said fiber insertion portion for fixing said fiber optic cable, said fiber fixing portion including a locking portion, with the outer surface of said locking portion being tapered along the direction of the axis of said fiber insertion guide member; and a pressuring member slidably disposed on said fiber insertion portion for movement within a restricted range in said axial direction, said pressuring member being provided with a locking portion having an aperture formed therein to receive said locking portion of said fiber insertion portion, said aperture having the inner surface thereof tapered in the opposite direction to that of said locking portion of said fiber insertion portion, said locking portions of said fiber insertion portion and pressuring member being disposed to mutually abut such as to cooperate in fixing said fiber optic cable within said locking portion of said fiber insertion portion when said pressuring member is moved to one end of said range of axial movement and to release said fiber optic cable when said pressuring member is moved to the other end of said range.