Floor scrubber having laterally variable scrub brush position

Details Floor scrubber having laterally variable scrub brush position Floor scrubber having laterally variable scrub brush position

1989-08-21

1991-05-21

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 87, 51177, A47L 1116

Patent

active

050163108

ABSTRACT:
A floor scrubbing machine has scrub brushes and their drive motors mounted in a scrub head located amidships under the machine frame. Provision is made to move the scrub head laterally on occasion to a position where it extends beyond one side of the machine frame to facilitate scrubbing along walls, thereby eliminating the need for a scrubbing side brush. The scrub brushes bear evenly against the floor regardless of the lateral position of the scrub head even though a variable down force may be applied to the scrub head. The scrub head is resiliently attached to the means for moving it laterally so that if it encounters a solid obstacle while it is extended it will be yieldably pushed back under the machine frame with a minimum likelihood of damage, and then will automatically extend out again after the obstacle is past.

REFERENCES:
patent: 3436788 (1969-04-01), Tamny
patent: 4160302 (1979-07-01), Hirst et al.
patent: 4368554 (1983-01-01), Mealing et al.
patent: 4490874 (1985-01-01), Duncan
patent: 4691402 (1987-09-01), Veselka

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