| 摘要 |
<p>The present invention relates to a cleaning device for cleaning of an underlying surface,, comprising at least a first and a second arm (31, 31') joined by an interconnection (30, 30') to form an angle (a) in relation to each other, wherein each arm (31, 31') comprises at least one cleaning member (8, 9) wherein said interconnection (30, 30') is arranged so that said arms (31, 31') are torsionally stiff in relation to each other in such a way that a rotation of one of said arms results in a similar rotation of every other arm.</p> |
