Abstract: A coupling device for coupling a floor-treating unit to a rod-like device for guiding the floor-treating unit includes a first coupling part and a second coupling part. The first coupling part is hingedly connected to the elongated rod at a hinge axis and the second coupling part is rotatably mounted on the floor-treating unit for rotatable movement about a generally horizontal rotational axis. The first coupling part is movably positioned in a slot in the second coupling part for movement between a first positional setting in which the second coupling part is locked against rotational movement, a second positional setting in which the rod is movable about the hinge axis to unlock the second coupling part and permit rotational movement of the second coupling part about the rotational axis, and a third positional setting in which the rod is movable about the hinge axis for being lowered over the floor-treating unit in a stored position.

Abstract: A floor treatment machine includes a frame, handle mounted to the frame, wheels mounted to the frame, and a rotatable floor treatment pad mounted to the frame for treating a floor surface. The floor treatment machine further includes a device for adjusting the angle of the floor treatment pad with respect to the floor surface. The handle may be mounted to the frame with an attachment that includes a first part that is attached to the frame so as to enable the first part to rotate with respect to the frame about a first axis and second part that is pivotably attached to the first part so as to enable the second part to pivot with respect to the first part about a second axis, and an element for mounting the handle to the second part.