초록 ▼

A surface maintenance machine is disclosed including a body supported on a plurality of wheels and a power source for driving the wheels. The body carries a driven cylindrical brush and a powered rotary lip which cooperates with the brush to project dirt and debris into the hopper, each end of the r

A surface maintenance machine is disclosed including a body supported on a plurality of wheels and a power source for driving the wheels. The body carries a driven cylindrical brush and a powered rotary lip which cooperates with the brush to project dirt and debris into the hopper, each end of the rotary lip being supported for vertical movement.

대표청구항 ▼

A sweeper comprising a body including a debris hopper, a power source, means for moving the sweeper along a surface, a driven cylindrically shaped brush for sweeping debris into said hopper, a rotary lip associated with said brush, means for rotatably driving said brush to assist in moving said debr

A sweeper comprising a body including a debris hopper, a power source, means for moving the sweeper along a surface, a driven cylindrically shaped brush for sweeping debris into said hopper, a rotary lip associated with said brush, means for rotatably driving said brush to assist in moving said debris into said hopper, said rotary lip being supported by arm means in a position spaced above the surface to be swept, said rotary lip support arm means being adapted to permit vertical movement of said rotary lip, thereby permitting movement of large debris pieces beneath said rotary lip, said support arm means comprising a pair of arm structures, one arm structure being disposed at either end of said rotary lip, said arm structures each being mounted with respect to the sweeper body by a ball and socket structure.