| 摘要 |
<p>The vacuum cleaner has roller (20) which is arranged to roll on floor. A roll holder (30) defines rotational axis (32) about which roller is rotated on ground, and mounting interface (35) is fixed to housing (10). The holder has elastically deformable portion provided between mounting interface and rotational axis of roller and is arranged such that it elastically deforms when rolling on roller hits an obstacle, so that deflection of component perpendicular to the ground is provided to roller. The roller holder has one-piece structure in which the deformable portion is received.</p> |
