| 摘要 |
<p>PURPOSE:To form uneven pattern giving slip prevention effect and also design effect on the grip part thereof by a single process by winding the prepreg around a mandrel, winding the cord like material on the surface, tightening it by a tape and hardening it by heat and pressure. CONSTITUTION:The prepreg, being prepared with reinforcing fiber impregnated with resin is wound around the mandrel and the cord like material 2 is wound on the cross around the surface of the prepreg pipe body 1, tightened by the tape and hardened by heat and pressure. The periphery of the pipe body 1 presents the uneven pattern by tightening of the cord like material and, being formed into an integral molding with the pipe body 1, the cord like material can not be peeled off.</p> |
