COATED OPTICAL FIBER HOUSING CASE LAMINATION UNIT

PROBLEM TO BE SOLVED: To neatly house multi-fiber fibers (4-fiber fiber tape or the like) and small- fiber fibers (single-fiber fiber or the like) branched from there, to easily perform the connection work of the multi-fiber fibers and the connection work of the small-fiber fibers and to prevent the twitch of the fibers from being generated at the time of work. SOLUTION: Plural small-fiber fiber housing cases 3 are laminated on one multi-fiber fiber housing case 1. The multi-fiber fiber housing case 1 is provided with the slack housing part 19 of the multi-fiber fibers 49 and 51A, the housing part 23 of the connection part 55 of the multi-fiber fibers and the housing part 25 of a fiber branching part 51C. The small-fiber fiber housing case 3 is provided with the slack housing part 39 of the small-fiber fibers 51B and 42 and the housing part 43 of the connection part 57 of the small-fiber fibers. The multi-fiber fiber housing case 1 and the small-fiber fiber housing case 3 are provided with fitting parts 17 and 37 to a column and are made individually rotatable back and forth centering the column. Fiber introduction parts 27 and 45 are provided near the fitting parts 17 and 37 of the multi-fiber fiber housing case 1 and the small-fiber fiber housing case 3 and an opening part 47 for passing through the small-fiber fiber 51B disposed from the multi-fiber fiber housing case 1 to the small-fiber fiber housing case 3 is provided near the fitting part 37 of the small-fiber fiber housing case 3.