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    • 1. 发明申请
    • LEVELING DEVICE OF ROAD PAVING MACHINE
    • 道路摊铺机水平装置
    • US20140369751A1
    • 2014-12-18
    • US14345643
    • 2012-06-18
    • Satoshi KobayashiYouhei ItohTetsuya WatanabeFumio Gotoh
    • Satoshi KobayashiYouhei ItohTetsuya WatanabeFumio Gotoh
    • E01C19/48
    • E01C19/4866E01C19/48E01C2301/16
    • [Problem] To improve performance by making it possible to properly conduct minus crown paving work in a paving work width region in which paving work in a minus crown has been impossible in a leveling device which is provided with a main screed and a pair of extendable screeds having almost the same width as the width of the main screed and is of any type among a type in which the pair of extendable screeds is disposed behind the main screed, a type in which the pair of extendable screeds is disposed in front of the main screed, and a type in which one and the other of the pair of the extendable screeds are disposed, respectively, in front of and behind the main screed.[Solution] A pulling mechanism which, if the crown amount is set to a minus amount when the respective inner ends (21a, 22a) of a pair of extendable screeds (21, 22) are extended in a range not going beyond a machine center line, pulls up screed plates (21b, 22b) in a required length range on the sides of the respective inner ends (21a, 22a) of the pair of extendable screeds (21, 22) according to the minus set amount of the crown amount.
    • [问题]为了提高性能,可以在设置有主熨平板的调平装置和一对可延伸的平铺装置中,在铺设作业宽度区域中正确地进行负拱顶铺装工作,其中,在铺设工作宽度区域中, 具有与主熨平板的宽度几乎相同的宽度的刮板,并且是其中一对可延伸的砂浆布置在主刮板后面的类型中的任何类型,其中一对可延伸的砂浆布置在主刮板前面的类型 主要熨平板,以及分别在主熨平板的前面和后面设置一对可延伸的砂浆中的一个和另一个的类型。 [解决方案]一种拉伸机构,当一对可延伸的格栅(21,22)的各个内端(21a,22a)在不超过机器中心的范围内延伸时,如果将冠量设定为负量 根据冠的量的负设定量,在一对可伸长的砂浆(21,22)的各个内端(21a,22a)的侧面上,在所需的长度范围内拉起熨平板(21b,22b) 。