Floor cleaning device with multiple agitators

A floor cleaning machine comprising:

• a vacuum source;
• a base module having a front end and a rear end;
• a suction inlet mounted to the base module and in fluid communication with the vacuum source;
• a motor mounted to the base module;
• a first agitator brush supported by the base module and operably connected to the motor, the first agitator brush rotating about a first axis;
• a second agitator brush supported by the base module and operably connected to the motor, the second agitator brush rotating about a second axis which is oriented generally perpendicular to the first axis;
• and
• a third agitator brush supported by the base module and operatively interconnected with the second agitator brush such that rotation of the second agitator brush causes rotation of the third agitator brush about a third axis which is oriented generally perpendicular to the first axis and spaced apart from the second axis,
• wherein the first agitator brush is driven at a first torque and the second agitator brush is driven at a second torque different from the first torque, and
• wherein the motor drives both the first agitator brush and the second agitator brush, wherein the floor cleaning machine further includes a first transmission on a first side of the motor operatively connecting the motor to the first agitator brush and a second transmission on a second side of the motor operatively connecting the motor to the second agitator brush.