Floor cleaning machine

Details Floor cleaning machine Floor cleaning machine

1990-01-17

1991-10-15

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15339, 51176, A47L 1118

Patent

active

050561758

ABSTRACT:
In a floor cleaning machine with a driven brush roller, the invention specifies that the height of the brush roller can be adjusted automatically as a function of the torque. For this purpose, between the drive and the brush roller, a spring, which is tuned to the torque for the working phase, is employed as a coupling element. When deviations from the specified torque occur, actuating signals for an automatic height adjustment of the wheel are produced, until the specified torque of the brush roller is re-established.

REFERENCES:
patent: 4418342 (1983-11-01), Aschoff et al.
patent: 4679271 (1987-07-01), Field et al.
patent: 4910824 (1990-03-01), Nagayama et al.

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