| 摘要 |
<p>The subject of the invention relates to an aid with improved characteristics for facilitating the movement of signal transmitting cables in cable ducts, which has a thin- walled, flexible limiting body at least partly made from plastic and a closed reception duct enclosed by the limiting body, the limiting body enclosing the closed reception duct has a gas-tight sealed shell surface and the limiting body is made from a base ribbon with a longitudinal limiting edge and a lateral limiting edge. The characteristic feature of the invention is that there are surface bands (15, 16, 17) made from the base ribbon (10) layered on each other in harmonica fashion along folding lines (13, 14) parallel with the longitudinal limiting edge (11), the surface bands (15, 16, 17) lying on each other are fixed to each other with one or more fixing bands (30) that are parallel to the folding lines (13, 14), and in this way through the surface bands (15, 16, 17) the limiting body (20) is separated into more than one gas-tight sealed, parallel tube bodies (21, 22) that delimit an insertion space (21a, 22a) and that are independent from each other but connected in each other's material.</p> |
