Automatic spray arch impact reset mechanism

摘要

An impact reset mechanism and method that automatically resets a spray arch in a vehicle washing system to permit operation of the vehicle wash system after the spray arch has broken away from its rigid, operating position due to contact with a vehicle. The impact reset mechanism includes a bias member that exerts a bias force on a pair of mounting blocks used to support the spray arch. When the spray arch contacts the vehicle, the spray arch pivots one of the mounting blocks. The pivoting movement of the mounting block is sensed and relayed to a control unit. The control unit immediately stops the wash process and moves the spray arch away from the vehicle. The control unit automatically resets the wash process and begins washing the next vehicle without resuming manual intervention.