Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1992-11-12
1994-10-18
Scherbel, David A.
Brushing, scrubbing, and general cleaning
Machines
Brushing
15 98, A47L 11162
Patent
active
053555422
ABSTRACT:
An orbiter floor machine for treating floors, the floor machine having a top-hat-like housing with a handle extending upwardly toward a user. The floor machine includes a motor having a rotatable drive shaft extending therefrom, the drive shaft having a shaft axis. An annular flywheel has an axial opening that fixedly receives the drive shaft so that rotation of the drive shaft causes rotation of the flywheel. A bearing assembly has an eccentric aperture through which the drive shaft extends such that the bearing assembly has an axis that is radially spaced from the shaft axis. The bearing assembly is secured to the flywheel such that the rotation of the flywheel causing the bearing assembly to orbitally rotate such that the bearing axis orbits about the drive shaft axis. A counterbalance weight is secured to an outside perimeter of the flywheel in a position opposite to the bearing assembly axis with respect to the shaft axis. The forces caused by the orbiting motion of the weight acts to counterbalance the forces caused by the orbiting motion of the bearing assembly. A brush carrier is secured to the bearing assembly such that the brush carrier orbitally rotates with the bearing assembly. A brush ring is secured to the brush carrier to transmit the orbital rotation into an effective floor-scrubbing action. The weight of the non-rotating parts is made larger than the weight of the rotating parts to minimize the effect of the rotating parts being slightly out-of-balance. The location of the drive shaft within the bearing assembly permits the rotating parts to be located as close as possible to the surface to be treated such that force moments or out-of-balance conditions caused by engagement of the brush ring with the floor will not be transmitted in a significant manner to the handle of the machine.
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Oreck David I.
Oreck Marshall B.
Oreck Corporation
Scherbel David A.
Till Terrence R.
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