Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1974-05-16
1976-07-20
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15DIG2, B60S 306
Patent
active
039697827
ABSTRACT:
A unitary frame of an automatic vehicle wash mounts a first and second brush in the path of an advancing vehicle for one brush to scrub the front and one side of the vehicle and the other brush the other side and rear. The frame defines the support and dimensional relationship for the brushes and attendant washing equipment, such as a mitting machine, shampoo applicator and rinsers. The brushes travel in arcs about axes on diagonally opposed posts of the frame and pass beneath elements of the frame. To accommodate this travel along the vehicle path, both the brushes are offset and posts of the frame are staggered. Vehicle contact determines each brush's position along its arc. A tension spring urges the brushes together. The tension in the spring is always maintained to prevent spring sag onto a vehicle, assure positive control of brushes, and prevent brush position reversal. Tension is maintained by pivots which engage anchor cables for the spring and lengthen the distance between attachment points of the cables on support arms when the brushes are relatively close to one another.
REFERENCES:
patent: 2705810 (1955-04-01), McDermott
patent: 3517405 (1970-06-01), Hanna et al.
patent: 3523320 (1970-08-01), Williams
patent: 3839762 (1974-10-01), Baker
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