Patent ID: 6029433
Filing Date: 2000-02-29
Classification: A01D

Abstract:
A lawn mower roller brush mounting and drive comprisinga lawn mower frame having two spaced-apart and uprightly disposed plates,a mower cutting reel rotatably mounted on said plates and having a longitudinal axis extending between said plates,a lawn roller rotatably mounted on said plates and having a longitudinal axis extending parallel to said reel axis,a roller brush support mounted on each of said plates and presenting a single longitudinal axis disposed parallel to both the first-mentioned two axes, and with said reel axis and said brush axis being disposed to be on respectively opposite sides of said roller axis,each said brush support and each of said plates having elongated slots respectively aligned with each other and with the length of each of said slots being disposed radially of said longitudinal axes of said roller and said brush support, and at least substantially radially of said longitudinal axis of said reel, to extend substantially in an arrangement whereby said axis of said supports is movable along said upright plane and thereby toward and away from both said roller axis and said reel axis,a brush rotatably mounted on said supports and being arranged to be rotatable about said axis of said supports,a belt pulley mounted on each of said reel and said brush and being in respective rotation drive connection with both said reel and said brush,fasteners extending through said slots for releasably securing said brush relative to said roller,a belt trained on said pulleys and extending directly therebetween, and free of any belt idler, for rotating said brush upon rotation of said reel, andone of said pulleys being self-adjusting relative to said belt and thereby being arranged to take up slack in said belt and thereby self-adjustingly control the tension in said belt and thus accommodate the aforesaid toward and away movement of said brush and any change in the length in said belt.