| 摘要 |
<p>A cleaning appliance comprises a cleaner head 1 rotatably attached to a duct 61. The cleaner head 1 comprises a main body having an agitator chamber, an axle (21, fig 4) that extends into the chamber, a drive assembly (7, fig 4) mounted on the axle (21, fig 4), and an agitator (2, fig 4) rotatably mounted within the agitator chamber so as to surround the drive assembly (7, fig 4). The drive assembly (7, fig 4) is coupled to the agitator (2, fig 4) such that torque generated by the drive assembly (7, fig 4) is transmitted to the agitator (2, fig 4). The drive assembly (7, fig 4) is mounted along the axle (21, fig 4) such that the centre of gravity of the cleaner head 1 is located on a vertical plane 63 containing the rotational axis 62 about which the cleaner head 1 rotates relative to the duct 61. The drive assembly (7, fig 4) can comprise a motor mount (40, fig 4) and an electric motor (41, fig 4) with the motor mount (40, fig 4) being attached at one end to the axle (21, fig 4) and at the opposite end to the electric motor (41, fig 4) such that the motor mount (40, fig 4) extends through the vertical plane 63 containing the rotational axis 62.</p> |
