| 摘要 |
A live roller pallet conveyor utilizes a plurality of drive assemblies spaced in aligned relation along the conveyor frame and which project upwardly into the plane containing the lower drive surface of the pallet. The drive assemblies have drive rollers which contact the pallet and are controlled in both drive direction and elevation. When driving the pallet, the drive assemblies carry substantially the entire weight thereof, except for that amount which is carried by spaced rollers along one edge of the conveyor frame. The arrangement permits the pallet to be driven virtually at the peripheral speed of the drive rollers, when driving longitudinallly of the conveyor, as well as permitting a controlled speed variation with fine accelerating or decelerating effects as the drive rollers are angled in drive direction. In one form, the pallet has an elongated free spinning roller on its under side which contacts the drive rollers for producing pallet motion.
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