| 摘要 |
For a pipe lead-through for plastic containers, from the container interior towards the outside, there is formed in the container wall (11) a seat (7) with a depression (8) into which there are inserted a collar (10), located at the outer mouth of the inner pipe (3), and an arresting lug (12) for forcibly positioning the inner pipe (3). From the outside, a hose fitting piece (4) is welded by spin welding, by means of its welding plate (13), via the collar (10) of the inner pipe (3) and the arresting lug (12) as far as the container wall (11). A compact, single-piece and non-releasable pipe lead-through is thus achieved. A preferred application area is for plastic fuel tanks. <IMAGE> |
