| 摘要 |
<p>The device (105) has a frame (110) provided with main casters (155). A support (115) in the frame is provided for a water tank (120). Another support (150) in the frame is provided for a pump powered electrically by an electrical supply and propelling water from the water tank. A damping unit (230) forms a compression spring to deaden passage of the frame from a position to another position relative to the casters, and to partially compensate weight of the device at the time of the passage of the frame from the latter position toward the former position. An independent claim is also included for a method for implementing a standalone cleaning device.</p> |
