| 摘要 |
PURPOSE: To obtain an integrated sealing guide-tube which can be easily and economically practiced, by providing radial bearing surfaces at both ends of a tubular bearing surfaces, one end forming a sealing gasket, and the other end forming annular sealing rib which contacts the external surface of the casing wall. CONSTITUTION: In a guide-tube having a seal ring equipped with a lip engaged in a sleeve, the seal ring with a lip has a reinforcing member 5 having a tubular bearing surface 6 which is forced into the tubular sleeve 1 of the guide-tube to engage with. The tubular bearing surface 6 extends and has radial bearing surfaces at both ends 7, 8. The one end 7 extends toward inside, and forms a sealing gasket 9 with a lip 10 at the tip, while the other end 8 extends toward outside, and forms an annular sealing rib 13 to contact the external surface of the casing wall. |
