(57) A frictional dampening device for the resilient suspension of the laundering tub
in the housing of a laundry washing machine comprises at least one plate member having
one of its ends secured to a bottom portion of the tub and having its other end retained
between a pair of friction jaws biased into engagement therewith by spring means anchored
to the housing of the machine.
Known dampening devices of this type suffer from the disadvantage that the dampening
force remains substantially constant irrespective of the amplitude of the oscillations
of the tub.
In order to solve the problems arising therefrom, the invention provides that the
plate member (15) is formed with friction surfaces diverging from the zone contacted
by the friction jaws (16, 17) in the rest position of the tub (6), and that said friction
jaws (16, 17) are connected to respective ends (18, 19) of the spring means (20) by
means of ball-and-socket joints (21), resulting in said jaws being continually kept
in full surface contact with said plate member (15), and in the dampening effect increasing
in proportion to the amplitude of oscillation.
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