Cleaning device with a cleaning roller that is rotatable about an axis of rotation
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United States of America Patent
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Oct 15, 2019
Grant Date -
May 24, 2018
app pub date -
Jun 2, 2016
filing date -
Jun 23, 2015
priority date (Note) -
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Abstract
A cleaning device has a cleaning roller that is rotatable about an axis of rotation and serves for treating a surface to be cleaned. The cleaning roller is in the form of a hollow body with an internal liquid chamber, and at least one hollow body opening for releasing liquid from the liquid chamber. In order to develop a cleaning device, in which liquid is only released from the liquid chamber to the surface of the hollow body under certain conditions, a mechanically actuated valve element is assigned to the hollow body opening, wherein the valve element can be displaced into a closing position, in which the hollow body opening is closed, and/or into an opening position, in which the hollow body opening is released, depending on the magnitude of a centrifugal force that acts upon the valve element as a result of a rotation of the cleaning roller.
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