| 摘要 |
<p>A vehicle washing machine comprises a pair of uprights interconnected at their upper ends by a bracing structure. Each of the uprights supports a carrier on which a vertically spaced set of spray nozzles are mounted and which can be swivelled to direct the nozzles to either side of the plane defined by the uprights. One of the uprights supports for vertical movement a horizontal carrier for a set of horizontally spaced nozzles, and this carrier can also be swivelled to direct the sprays to either side of said plane. Simultaneously with the swivelling each of the carriers moves lengthwise of itself a distance equal to half the spacing of the nozzles. The machine bridges the vehicle to be washed and traverses backwards and forwards along the vehicle with the nozzles inclined in the direction of travel. At each end of the travel the horizontal carrier moves down and up again along the uprights to wash the front and back of the vehicle. The machine makes separate traversing movements, first with a washing fluid, secondly with a neutralizing fluid and finally with water. The swivelling of the carriers at each end of the traverse moves the carriers through half the nozzle pitch distance so that the nozzles spray along different paths during the return movement. The uprights may be mounted on separate bogies or may be mounted on a single bogie one of the uprights being supported in cantilever fashion.</p> |
