Patent ID: 7347213

Claim:
An automatic drive-through vehicle wash, comprising: a conveying stretch along which a vehicle to be washed is conveyed in a feed direction; means for conveying a vehicle along the conveying stretch; wash rotors arranged on both sides of the conveying stretch; a rotating cleaning element extending transversely to the feed direction of the vehicle, the cleaning element being operable to contact at least one of the front, the hood, the roof, and trunk areas of the vehicle; a shaft extending overhead the conveying stretch and being rotatably supported for rotation about an axis of the shaft; two pivotable carry levers arranged on both sides of the conveying stretch and supported by the shaft, the cleaning element being supported by the two pivotable carry levers; two spacer bar levers each non-rotatably secured to the shaft on a respective side of the conveying path, each carry lever being coupled, via an interposed link, with one of the spacer bar levers, each spacer bar lever having an extension arm that extends beyond the spacer bar lever's securement to the shaft, and the extension arms supporting a counter-weight thereon; two links; two tie rods; two lever arms, each lever arm being rotatably supported by a rotational support on the shaft and each lever arm supporting, on an extension arm thereof extending beyond its rotational support on the shaft, a counter-weight; and two links, each carry lever being connected in a linked manner via one of the links with one of the tie rods and each lever arm being connected, via one of the links, with a tie rod so as to thereby form a parallelogram spacer bar, whereupon the cleaning element is balanced relative to the vehicle in any position via self-displacing parallelogram spacer bars with the counter-weights and contacts the vehicle with a set contact force.