Screed device null of road pave vehicle of asphalt finisher

摘要

PROBLEM TO BE SOLVED: To provide a screed device capable of changing paving leveling width in a stepless manner up to approximately treble of the width of a main screed by simple operation in the screed device for a road paving car such as a road finisher.;SOLUTION: The screed device is constituted in such a manner that a pair of expansion-contraction screeds 15, 16 having approximately the same width as the width of a main screed 7 is juxtaposed. before and behind at the rear in the progressive direction of the main screed 7. Supports 27, 28 are supported by support supporting sections 23, 24 installed on both sides in the rear upper section of the main screed 7 and the supports are supported movably in the paving leveling width direction, the expansion-contraction screeds 15, 16 are similarly supported movably in the paving leveling width direction by the supports 27, 28, and the expansion-contraction screeds 15, 16 can be moved in the mutually opposite direction in the paving leveling width direction from the rear position of the main screed 7 by a feeder for a hydraulic cylinder or the like.;COPYRIGHT: (C)2000,JPO