| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently clean a wall face of a building, by arranging a jet means and a brush in a case and simultaneously brushing and jetting a washing water and pushing the case on the wall face by guide wires. SOLUTION: A jet means 3 and a brush 4 are arranged in box-type case 2 provided with an opening 20 at the wall face 9 side. The case is suspended by a lifting device through wires 20 and support wires 21 and also pushed on the wall face by the fitting of guide wires 8 nearly vertically stretched with a tension between the edge of the uppermost floor and the ground face. Water is supplied in the jet means 3 and the brush 4 is rotated by a rotary driving means 5 to rub out stains on the wall face 9 by the washing water and brushing. In this time, the washing water flowing down from the upper part along the wall face is scraped by a scrapper 62 and led into an opening 7h of a drain duct through a support plate 63 and a water conductor pipe 64.</p> |
