ES398721A1 - Vehicle washing machine - Google Patents

Abstract

Improvements introduced in car washing machines comprising a gantry-shaped body, or mobile support, which moves on the floor of the washing room, preferably on rails, with forward and backward movement, longitudinally, above the car being It is going to wash, this body having vertically mounted rotary brushes, at least one brush on both sides, as well as at least one upper brush mounted mainly horizontally, transversely attached to the upper part of the machine, while the brushes they are powered by electric motors and are provided with control and command means that allow the brushes, during their rotation in the washing process, to be automatically compressed against the surfaces of the car to be washed and to follow the profile of the car, keeping constant the compression force of the brushes against the surfaces of the car, at the same time that a suitable washing liquid is being sprayed on the surfaces and on the brushes, characterized in that in the circuits of the drive motors of the side brushes and the upper brush, relay units or similar that detect the effective power taken by said motors from the network, thus controlling the position of the brushes in relation to the surfaces of the car to be washed and keeping their pressure constant against the surfaces and also controlling the longitudinal movement of the machine by means of the impulses that these relays give through the changes of said measured effective power. (Machine-translation by Google Translate, not legally binding)