| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a synthetic resin-made hose which has flexibility and pressure resistance, and is curved in an arc shape without generating any crimp-like wrinkles on a curved portion to smoothly distribute the fluid. <P>SOLUTION: A helical reinforcing wire 2 made of a hard synthetic resin is helically wound on an outer circumferential surface of a hose body 1 made of a flexible synthetic resin, and a helically wound portion between 1-2 pitches of the helical reinforcing wire 2 made of the hard synthetic resin forms a fixed helical reinforcing wire part 2A fixed to an outer circumferential surface of the hose body 1 made of the flexible synthetic resin. The fixed helical reinforcing wire part 2A and a movable helical reinforcing wire part 2B of≥3 pitches not fixed to the outer circumferential surface of the hose body 1 made of the flexible synthetic resin are alternately provided in the longitudinal direction of the hose. The hose body 1 made of the flexible synthetic resin can be easily curved in an arc shape by the movable helical reinforcing wire part 2B. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
