| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a serrated hose coupling provided with a hose holding portion with a serrated section, and applied to a synthetic resin hose which degrades relatively early by plastic deformation. SOLUTION: A seal member is attached on any one of portions connecting two serrations among a plurality of serrations forming a serrated portion to seal leakage gap between the hose and the coupling.</p> |
