| 摘要 |
An automatic vehicle washing apparatus that includes a mobile carriage that travels around an endless track that encircles the stationary vehicle during the washing process. The carriage supports a spray arm that directs a heated liquid detergent under pressure and onto the exterior surfaces of the vehicle for cleaning it while the carriage makes one or more trips around the vehicle. The carrier makes an additional one or more trips around the vehicle with the same spray arm now delivering cold rinse water under pressure against the vehicle for rinsing off the detergent liquid. The carriage also swingably supports an auxiliary arm that carries a heavy fabric and this auxiliary arm is automatically swung into a position for placing the heavy fabric immediately in back of the spray arm during the spraying of the liquid detergent onto the vehicle so that it will be dragged over the vehicle and aid in removing dirt therefrom. I mount a brush-carrying arm on the auxiliary arm and provide novel means for swinging both the auxiliary arm and brush-carrying arm into operative position during the time the detergent liquid is sprayed onto the vehicle and for swinging the same two arms into inoperative position during the rinsing cycle. The brush is rotated and will aid in cleaning the sides, front and rear of the vehicle when the brush-supporting arm is in operative position.
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