| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the workability and the work efficiency to obtain sufficient washing ability by mounting, on a truck which can travel, at least one pump connected to the rear end part of a water hose with a washing nozzle and plural AC motors connected to power sources of specified voltages of different systems. SOLUTION: On the mount part 2 of a frame 1 which can travel by hand pushing, two AC motors 7 are mounted, and on a pump base 8, a pump 9 is mounted. Between a two-stage pulley 11 fitted to a driving shaft of the pump 9 and pulleys 12 fitted to output shafts of the AC motors 7, driving pulleys 13 are spread. To two cord reels 14 mounted on a erecting part 3 of the frame 1, power cord of the AC motors 7 are connected. The cords of the cord reels 14 are connected to power sources of single-phase 100 V of different systems of floors of an apartment house to drive the pump 9 by the two AC motors 7. To the pump 9, the rear end part of a water hose 20 fitted with a washing nozzle 21 is connected through a stop valve 19.</p> |
