Joints and connections – Interfitted members – Lugged member – rotary engagement
Patent
1995-09-25
1997-07-08
Dorner, Kenneth J.
Joints and connections
Interfitted members
Lugged member, rotary engagement
403345, 403350, 403353, 15 491, B25G 300
Patent
active
056453655
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. The second series of ramps are carried by fingers that are capable of flexing and have centering portions that ensure an axially snug and stable fit between the coupling device and the circular drive hub carried by the machine drive shaft structure for centering the coupling device relative to the drive hub is provided. In an alternate embodiment, two sets of fingers are provided, one set of fingers being engageable when the drive hub is rotated in one direction, and the other set of fingers being engageable when the drive hub is rotated in an opposite direction.
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Floor Machine Pad Holders & Rotary Brushes Catalog published by Rubbermaid Commercial Products, a division of EWU International Ltd., pp. 1-11, date unknown.
Floor Machine Brush Price List And Equipment Reference List of Malish Brush and Specialty Company, Catalog No. MB89A, pp. 1-47, date unknown.
Blazek John D.
Malish Terrance J.
Shary Kenneth L.
Dorner Kenneth J.
Lev Bruce A.
The Malish Brush & Specialty Company
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