| 摘要 |
<p>PROBLEM TO BE SOLVED: To further enhance sealing effect by means of a hose band for attachment which is simple in structure. SOLUTION: In the attachment of a tightening bolt to two pieces of a pawl provided to radially outwardly protrude the hose band from the clearance of a circle-waned annular body, the hose band is configured to form the inside surface of the annular body so as to make its middle higher and to strongly tighten the hose to an axial central portion.</p> |
