Patent ID: 11871886
Assignee: nan
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A floor cleaning apparatus, comprising: a handle having a proximal end and a distal end;
a housing at the distal end of the handle;
a plurality of wheels at a bottom of the housing that rotate relative to the housing when a force is applied to the handle;
a plurality of interchangeable and removable surface-cleaning rollers that include at least two outer rollers and one middle roller, which rotate relative to the housing and the wheels, and that rotate at a different rate of rotation than the wheels; and
a gear and pulley assembly that communicates with the wheels to rotate adjacent surface-cleaning rollers in different directions relative to each other to mimic a scrubbing motion, the gear and pulley assembly comprising:
first pulley elements wherein each pulley element is coupled to one of the plurality of wheels;
each of the first pulley elements are linearly arranged for movement with a plurality of smaller second pulley gears forming a gear train, the second pulley gears are arranged so that:
two of the second pulley gears have a first one of the outer rollers positioned between them, two of the second pulley gears have the middle roller positioned between them, and two of the second pulley gears have a second one of the outer rollers positioned between them;
a pulley belt positioned about the first pulley elements, second pulley gears, and the rollers;
the pulley belt includes teeth on both an outer surface and an inner surface for gripping components of the gear and pulley assembly.