| 摘要 |
<p>1. Friction roller for a conveyor comprising driven rollers, of the type composed of a shaft (4) keyed to rotate in a frame (3), of a roller (2a) and a driving device (5), provided with at least one sprocket wheel (6), mounted to rotate freely on the shaft (4), of a friction lining (27) interposed between one of the end faces of the roller and the opposing face of the driving device (5) and means for regulation the pressing force of the lining comprising a stop member (32) integral with this shaft and transmitting to the roller (2) an adjustable longitudinal thrust, characterized in that the shaft (4) is keyed to rotate at each of its ends in the frame by flat portions (4a) giving it a freedom of translation and has mechanical and dimensional characteristics enabling it to bend in order to increase locally the pressing force of its end face against the friction lining (27).</p> |
