Floor Brush

FIG. 1 is a front perspective view of a floor brush, showing my new design; FIG. 2 is a rear perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a plan view of the enlarged top surface; FIG. 8 is a plan view of the enlarged bottom surface; FIG. 9 is a perspective view 1 showing the floor brush in a use state; FIG. 10 is a perspective view 2 showing the floor brush in a use state; FIG. 11 is a perspective view 3 showing the floor brush in a use state; FIG. 12 is a perspective view 4 showing the floor brush in a use state; FIG. 13 is an enlarged detail view of area 13 in FIG. 1 ; FIG. 14 is an enlarged detail view of area 14 in FIG. 1 ; FIG. 15 is an enlarged detail view of area 15 in FIG. 1 ; FIG. 16 is an enlarged detail view of area 16 in FIG. 1 ; and, FIG. 17 is an enlarged detail view of area 17 in FIG. 1 . The broken lines in the drawings illustrate the portions of the floor brush, which form no part of the claimed design. The dash-dot-dash broken lines encircling the enlarged views are for annotative purposes only and form no part of the claim thereof.