| 摘要 |
PCT No. PCT/US90/01237 Sec. 371 Date Oct. 11, 1991 Sec. 102(e) Date Oct. 11, 1991 PCT Filed Mar. 7, 1990.A conveyor system having a conveyor belt (21) having a substantially horizontal segment with hopper walls (26) overlying the segment and providing a hopper channel (25) terminating at a distance above the belt to provide clearance space below the hopper walls, and a skirtboard (74) mounted on the hopper walls, projecting into the clearance spaces and terminating in flexible sealing flaps (75) confronting the upper surface of the belt (21) to limit the flow of particulate material (M) through the clearance space. The hopper walls (26) have upwardly-directed guide tracks (37) on their outward sides to receive elongated slides (44) for longitudinal displacement in the associated track (37). The skirtboard (74) extends transversely to and between adjacent slides (44) to position its flexible sealing flaps (75) in confronting relation to the conveyor (21). A bracket (54) is pivotally supported (47) by the slide (44) to mount the skirtboard (74) and has a releasable latch (55) to forcibly engage the skirtboard ( 74) with the hopper wall adjacent the lower edge (27) thereof. The skirt (75) may be adjusted by temporarily releasing the latches (55).
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