Patent ID: 6231432
Filing Date: 2001-05-15
Classification: A47L,B24B

Abstract:
A floor treatment machine comprising:a body;a rotating drive linkage projecting from the body, the drive linkage positioned along a predetermined axis of rotation;a floor treatment head configured to attach to the drive linkage; anda torque limiter assembly mounted between the floor treatment head and the drive linkage, the torque limiter assembly includinga housing having an interior surface defining a cavity,a first plate located within the cavity and operatively connected to the drive linkage, the first plate having a surface positioned normal to the axis of rotation,a second plate operatively connected to the head and having a surface in opposed alignment with the surface of the first plate and configured to engage the surface of the first plate, wherein the first and the second plate are mounted for relative movement away from each other, andat least one spring that biases the first and second plates toward each other,wherein the surface of the first plate and the surface of the second plate are configured to cooperatively force the plates away from each other upon an application of a predetermined amount of torque.