| 摘要 |
A powered roller conveyor wherein a plurality of conveyor rolls are formed as elongated sleeves and are freely rotatably supported on support shafts which are slightly undersized relative to the sleeves. At least some of the support shafts are rotatably driven. The conveyor incorporates at least one zone having a brake or lifting device disposed below the conveyor rolls and liftable upwardly a small amount to thereby engage the conveyor rolls to drivingly disengage same from the continuously driven support shafts to permit stoppage of the conveyor rolls and the articles supported thereon. This lifting device accomplishes stopping of selected conveyor rolls and articles while permitting continuous driving of the support shafts throughout the conveyor.
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