| 摘要 |
<p>An adjustable pipe bend comprises at least two pipe bend parts having abutting end portions extending in a plane which is inclined relative to the main axis of the respective pipe bend part, said pipe bend parts being rotatably connected to each other at said end portions for rotation about an axis perpendicular to said plane or planes only characterised in that said plane or each said planes form(s) an angle of 22,5 with a plane perpendicular to the main axis of the respective pipe bend part. The main axis (18, 19, 20) of adjacent pipe bend parts (10, 11, 12) for all mutual rotational positions of said pipe bend parts (10, 11, 12) either intersect each other or are substantially coincident, and that the end portions (14, 16) of adjacent pipe bend parts are rotatably interconnected by means of elements (22, 24). The pipe bend parts (10, 11, 12) are injection-moulded parts of a plastics material.</p> |
