Surface treating machine with automatic drive

A machine for treating a surface lying in an XY plane comprising,

• a body having a body plate,
• a cleaning plate located between the body plate and the XY plane,
• a cleaning pad attached to the cleaning plate,
• a drive assembly connected to the cleaning plate to drive the cleaning plate and cleaning pad with a cleaning vibration in an oscillating pattern parallel to the XY plane, the oscillating pattern generating a drive force for driving the cleaning plate over the XY-plane in a direction of travel, wherein the drive assembly includes,
• a first motor apparatus having,
• a first stator fixed to the cleaning plate,
• a first rotor for rotating in a first direction about the first stator and about a first motor axis,
• a first offset weight attached to the first rotor and rotated by the first rotor around the first motor axis whereby the cleaning plate is driven with a first vibration in a first oscillating pattern parallel to the XY plane,
• a second motor apparatus having,
• a second stator fixed to the cleaning plate,
• a second rotor for rotating in a second direction about the second stator and about a second motor axis,
• a second offset weight attached to the second rotor and rotated by the second rotor around the second motor axis whereby the cleaning plate is driven with a second vibration in a second oscillating pattern parallel to the XY plane,
• whereby the cleaning plate has a combined vibration formed by the combination of the first vibration and the second vibration for driving the cleaning plate over the XY-plane in the direction of travel,
• an attachment assembly for flexibly attaching the cleaning plate to the body plate to permit the cleaning plate to vibrate relative to the body plate and to isolate the cleaning vibration from the body.