| 摘要 |
A machine for scrubbing or finishing a floor surface comprises a front end and a rearward end, a workhead 12 at or towards the front end of the machine, an electric motor 35 arranged in use to drive the workhead 12 and disposed generally above said workhead 12, a set of wheels (9, fig 1) disposed rearwardly of the workhead 12 so that the weight of the device is supported by the workhead 12 and the wheels (9, fig 1) when the machine is located on a floor surface, the machine being rearwardly tiltable about the set of wheels (9, fig 1) so as to lift the front end and workhead 12 from the floor surface for access to the workhead 12. The machine is characterised in that the machine is provided with one or more liquid containers 22, 23 which extend between a front end region of the machine generally above the workhead 12 to a rear end region of the machine which is to the rear of the wheel tilt axis (9, fig 1), so that when the machine is sufficiently tilted a change in liquid distribution towards the rear of the container occurs which provides a shift in the centre of gravity of the liquid from a region in front of the tilt axis to a region behind the wheel tilt axis, thereby serving to help urge or maintain the machine in the tilted orientation. |
