| 摘要 |
<p>A circumferential, strip-like, joint-sealing element (5) and method of producing such element, being disposed on one end of an extension piece (1) sealed to a tubular element (2). The sealing element is a rubber element presenting in cross section a foot-part (8), anchoring the element to a free end-edge (9) of the extension piece, and having a toe-part (10) gripping around the end-edge and a heel-part (11) resting on bottom of a channel (7) inwardly of said end-edge, while abutting a forward channel side-wall (12). The sealing element has a sealing-lip (4) projecting outwardly from the heel-part (11) and abutting the tubular element inner surface. The foot-part has retention means, e.g. a wire on the sealing element outer surface. Alternatively, said means is a glue under the foot-part to hold same firmly to the extension piece outer surface. The end surfaces of the strip-like element are brought into end-to-end abutment without inducing elastic tension in the element.</p> |
