Title: Two brush vehicle coordinated automatic washer

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.

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Inventors: Williams, Robert D. (La Canada, CA, US)

Application Number: 470441
Filing Date: 1974-05-16
Publication_date: 1976-07-20
Assignee:
Primary Class(es): 15/53.3 15/DIG2
Other Classes:
US Patent Ref:

2705810	Apr, 1955	McDermott	15/21.
3517405	Jun, 1970	Hanna et al.	15/21.
3523320	Aug, 1970	Williams	15/21.
3839762	Oct, 1974	Baker	15/21.

Other Refs:
Primary Examiner: Roberts, Edward L.
Assistant Examiner:
Attorney: Christie, Parker & Hale