| 摘要 |
The arrangement has a cradle (2) on which the vacuum cleaner is mounted. The cradle in turn is supported pivotably around a horizontal axis by two wheels (4), one on either side, and around one and the same geometrical rotary axis. The cradle in respect of its wt. and centre of gravity is so formed that the centre of gravity for the unit formed by the vacuum cleaner and cradle is beneath the wheel horizontal rotation axis. The cradle includes a U-shaped frame in vertical section through the cradle horizontal pivot axis, with a bottom part and two side parts connected to the wheels. The frame is formed by a tube construction with the side parts consisting of U-shaped sections, with a body part located at the top and the bottom part comprising tube parts. |
