| 摘要 |
A lead bushing (1) is connected by tightening to a socket-shaped seat part (9), and on its exterior has a peripheral ridge-shaped part (2) with a conical, downwardly inclined underside (3), and is inserted in an individual socket-shaped plastic part (5). On the inside of the plastic socket-shaped part is a part complementary to the conical, inclined underside of the lead bushing. A track (7) is provided either on the lead bushing underside or on the conical part of the inside of the individual socket-shaped plastic part, in which a sealing ring (8) is fitted. The socket-shaped part is sealed to the socket-shaped seat part (9) by fusion between the inside of the latter and the outside of the former. The socket-shaped seat part (9) has a ring-shaped track (13) on its inside in which an upper widened part of the individual socket-shaped part engages. (Provisional basic advised week 8734) |
