Floor cleaning machine
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United States of America Patent
Stats
-
Oct 15, 1991
Grant Date -
N/A
app pub date -
Jan 17, 1990
filing date -
Apr 24, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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