Vibration-reduced washing machine

The washing machine employs a tub suspension system with angled damping members and friction dampers to mitigate vibrations caused by laundry imbalance, enhancing vibration reduction efficacy.

EP3924545B1Active Publication Date: 2026-05-27V-ZUG AG
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
V-ZUG AG
Filing Date
2019-04-26
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

Laundry non-uniformly distributed inside the drum of a washing machine generates rotating unbalance and undesired vibrations during centrifugation, which existing damping systems fail to adequately address.

Method used

A washing machine design featuring a tub suspended by a support device with multiple damping members arranged at specific angles and friction dampers, including a first and second damping member with movement axes spanning an angle of at least 65°, and optionally a third member, to reduce pendulum movements and vibrations.

Benefits of technology

The large angle arrangement of damping members effectively reduces vibrations transferred to the casing by minimizing pendulum movements, particularly when combined with friction dampers allowing minimal friction at low deflections.

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Abstract

A washing machine for laundry comprises a casing, a rotatable drum (12), a tub (11) enclosing said drum (12) for receiving laundry, a support device (13) inside said casing for supporting said tub (11), a first damping member (20) with a first movement axis and a second damping member (21) with a second movement axis arranged between said tub (11) and said support device (13). Said first damping member (20) and said second damping member (21) are arranged such that said first movement axis and said second movement axis span an angle of at least 65°.
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