| 摘要 |
<p>The sleeve has a tubular cylindrical section (132) with aperture (142). A ring element (134) extends radially outwards from the cylinder section. Two or more ribs (136) are connected to the section and extend in a similar way. A grooved part (148) is located between the base of each rib and the cylindrical section. Each grooved part, and the base of each rib, enclose a section, which resists disconnection of the cylinder section from the ribs, when the sleeve is subjected to mechanical loads.</p> |
