| 摘要 |
<p>PURPOSE:To provide a flexible hose which is flexible enough to be wound and carried in a shrunk condition and elongated to an appropriate length when used. CONSTITUTION:A flexible hose has a cylindrical hose mainframe A' formed of flexible sheet material and reinforcing strips 3 spirally wound along the outer periphery of the hose mainframe A'. On the hose part between the reinforcing strips 3 are provided at least double turn-around portions 2 in sequence to maintain good bending property and the hose can be made longer by elongating the turn-around portions 2.</p> |
