Abstract: A coupling device adapted for use with floor maintenance machines of the type used for floor brushing, buffing, polishing, scrubbing or the like and which facilitates the coupling of a maintenance element (i.e., brush, buffing disk or the like). The device comprises an annular plate member having a circular opening adapted to receive a circular drive hub carried by the machine drive shaft with the drive shaft having radially projecting lugs that are adapted to pass through radially extending arcuate recesses formed in the plate member so as to lockably engage behind the plate member. On one side of the coupling device, a first series of inner peripheral cam-like ramps communicate with one end of the arcuate recesses and on the opposite of the plate member, a second series of inner peripheral cam-like ramps communicate with the opposite ends of the arcuate recesses.

Abstract: A coupler is disclosed for coupling floor maintenance pads to a driven pad disc. The coupler has one part for mounting on the driven disc and a second part which threads to the first part for holding and centering a maintenance pad to a disc. A lock arrangement is provided for preventing the coupler from becoming unthreaded during operation. The locking arrangement is formed by a detent mechanism. One part of the detent mechanism is formed on the first part and another cooperating part of the detent mechanism is formed on the second part. When the coupler parts are threaded together to secure a pad, the detent mechanism engages and provides a resisting force against unthreading. In another embodiment, wedge-shaped projections are formed on one part of the coupler for engaging a pad and resisting loosening.

Abstract: The present invention provides a brush-like mounting device of the type for detachably mounting a cleaning, stripping, scrubbing, polishing or the like type member, such as a pad, for commercial, industrial and/or residential applications. The device includes a generally rigid body member having at least one generally planar side surface. First retention means, including resilient filament means, extends from this surface for coacting gripping engagement with a pad; and second retention means including resilient filament means extends from said surface and angularly in respect to said first retention means for coacting gripping engagement with the confronting surface of said pad and with said first and second filament means coacting for detachably mounting said pad on said mounting device.