| 摘要 |
PURPOSE:To facilitate the manufacture of an optical transmission use fiber cable and the terminal part work by providing a projection formed in the circular outside peripheral direction of a linear object, on the inside of an opening part, so that a projecting shape of this projection is varied gradually in the lengthwise direction of the linear object, and preventing an optical transmission use fiber from jumping out of a cavity. CONSTITUTION:In an opening part 1 of parts I, III in which a spiral is revered, a projection 3 is provided on each cavity 2 extending from the projecting side of a spiral curve to the recessed side, and the projection 3 varies its shape in the lengthwise direction of a linear object 10. In this state, in case an optical transmission use fiber has been contained in the cavity 2, at the time of a state that the optical transmission fiber is jumping out of the opening part 1 at a part where the spiral is reversed, it is caught by the projection 3, and it is prevented to jump out to the outside. Also, the projection 3 is provided along the circular outside periphery of the linear object 10, therefore, it is not obstructed to insert and contain the optical transmission use fiber. |
