| 摘要 |
<p>A washing machine has a tub (10) made of polymeric material and at least a counterbalance weight (14) attached thereto by means of detachable screw connections comprising pin-shaped protrusions (12) integral with the tub (10) and with a shape corresponding to through openings (14a) provided in the counterbalance weight (14). Each protrusion (12) has a central hole (13) with longitudinal slots (12b) adapted to cooperate with a corresponding self-tapping screw (20) so that, when the counterbalance weight is fixed to the tub, a predetermined radial force is created between each protrusion and the corresponding opening of the counterbalance weight in order to obtain a combined axial and radial fastening between protrusions and openings.</p> |
