| 摘要 |
This gravel spreading (gritting) device, having a rotating extractor roller 8 placed horizontally at the base of the exit zone 100 of the gravel (grit) g, is characterised in that it comprises two separate sets of flaps for closing this exit zone 100, namely: - a first series of closure flaps 3, each comprising a mobile shutter 30 capable of being applied, in the closure position, against the rear part of the wall of the bottom 10 of the tipper; - a second series of metering flaps 2, which each comprise a mobile shutter 20 which, when the tipper is inclined in the working position, is situated above the extractor roller 8, substantially in line with its axis Z, this shutter interacting with the surface of the roller 8 in order to meter the gravel (grit). Public works equipment. <IMAGE>
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