| 摘要 |
<p>In a suction roller (15) with a perforated, rotatable casing (16) and pressing region(s) sealable with at least two sealing elements, each with a holder (19) and a sealing strip (18) movable relative to the holder and pressable against the inner side of the casing, at least one sealing element has a spring (20) acting on the holder and strip to press the strip against the casing.</p> |
