REINFORCEMENT SLEEVE, AND REINFORCEMENT STRUCTURE AND REINFORCEMENT METHOD FOR OPTICAL FIBER CONNECTION PART

摘要

A reinforcement sleeve 1 is a member for reinforcing a connection part of an optical fiber tape core wire, and comprises a heat-shrinkable tube 5, a heat-meltable member 7, a tension member 9, and the like. The heat-shrinkable tube 5 is a cylindrical member. The tension member 9 is a rod-shaped member. The tension member 9 and the heat-meltable member 7 are inserted in the heat-shrinkable tube 5. The heat-meltable member 7 is disposed above the tension member 9. The tension member 9 is approximately circular or approximately elliptical in a cross section perpendicular to the longitudinal direction of the reinforcement sleeve 1. More specifically, the surface on the heat-meltable member 7 side of the tension member 9 is formed to have an arc-shaped convex curved surface in a cross section perpendicular to the longitudinal direction of the tension member 9.