High speed floor burnisher
First Claim
1. In a floor burnisher including a motor having a shaft rotating at high speed, an improved driver assembly comprising:
- a hub coupled to the shaft of said motor for rotation therewith;
a flexible backing plate attached to said hub and extending radially outwardly thereof and defining an outer peripheral retainer flange extending downwardly therefrom;
pad gripper means beneath the underside of said backing plate and attached to said hub for rotating therewith; and
a burnishing pad engaging said gripper means and having an outboard edge immediately adjacent said retainer flange of said backing plate, said retainer flange at least partially encompassing said pad.
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Accused Products
Abstract
A driver assembly for the pad of a high speed floor burnishing machine includes a flexible backing plate having a peripheral retaining skirt which centers the pad on the driver assembly and also prevents the edges of the pad from growing or expanding to a larger circumference during high speed rotary burnishing action. The backing plate adds stiffness to the pad when rotating at high speed, and it promotes uniform contact of the pad with the floor at the outer radial extremities of the pad where the velocity is greatest and the polishing is most effective. In the illustrated embodiment, the pad and driver assembly are surrounded by a shroud which is continuously evacuated by radial air flow generated by the motion of the driver assembly which includes a finned hub. The air flow carries debris generated by the burnisher to a collection bag or filter without leaving the machine.
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Citations
11 Claims
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1. In a floor burnisher including a motor having a shaft rotating at high speed, an improved driver assembly comprising:
- a hub coupled to the shaft of said motor for rotation therewith;
a flexible backing plate attached to said hub and extending radially outwardly thereof and defining an outer peripheral retainer flange extending downwardly therefrom;
pad gripper means beneath the underside of said backing plate and attached to said hub for rotating therewith; and
a burnishing pad engaging said gripper means and having an outboard edge immediately adjacent said retainer flange of said backing plate, said retainer flange at least partially encompassing said pad. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a hub coupled to the shaft of said motor for rotation therewith;
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10. A high speed burnishing pad and driver assembly comprising:
- a flexible backing member having a generally circular horizontal shape and an integral depending retainer flange;
pad gripping means disposed on the under surface of said backing plate; and
a polishing pad engaged by said gripping means and having an outer edge located immediately inward of said retainer flange, said retainer flange acting to restrain the outward movement of the outer edge of said pad under high speed operation. - View Dependent Claims (11)
- a flexible backing member having a generally circular horizontal shape and an integral depending retainer flange;
Specification