Conveyors: power-driven – Conveyor section – Live roll
Patent
1991-01-25
1992-04-28
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor section
Live roll
198787, 198789, B65G 1306
Patent
active
051079828
ABSTRACT:
A roller conveyor apparatus includes a plurality of tapered tubular rollers, each rotatably mounted on an axle. The roller axles are supported by a frame so that, in one embodiment, the rollers are arranged to form a conveyor turn segment. A drive wheel, also mounted on the axle, is associated with each roller to provide a friction surface operating against one end of the roller for rotation of the roller. A spring load assembly at the other end of the roller controls the frictional contact between the roller and the drive wheel. The drive wheel for each of the plurality of rollers is driven by a friction drive assembly including a sprocket horizontally supported beneath the drive wheel. A drive tire is mounted on the sprocket so that the tire surface contacts the drive wheel. A chain, driven by a single motor and drive sprocket, engages the sprocket of each friction drive assembly to rotate the sprocket, and therefore the drive tire. The frictional contact between the drive tire and the drive wheel causes the drive wheel to also rotate. The frictional contact between the drive wheel and the roller, and between the drive tire and the drive wheel, provide two torque limiting features for the roller conveyor apparatus of one embodiment of the invention. In one embodiment, the drive wheel is press-fit onto the axle so that the axle rotates with the drive wheel. Axle rotation provides an additional driving force to the rollers through bushings engaged with the rollers.
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Dayoan D. Glenn
Shuttleworth Inc.
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