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    • 55. 发明公开
    • A chain
    • 一个链
    • EP1574747A3
    • 2005-12-14
    • EP05251467.6
    • 2005-03-10
    • RENOLD Plc
    • Lodge, Christopher James
    • F16G13/06
    • F16G13/06
    • A power transmission chain has a plurality of overlapping inner (11) and outer (12) link plates interconnected by transverse pins (13) that pass through aligned apertures in the overlapping plates (11,12). The pins (13) are square or rectangular in cross section and one of the planar surfaces on each pin is designed to bear against an arcuate bearing surface (17) defining part of the aperture in the inner link plate (11). The outer link plate (12) has a square or rectangular aperture (16a) that is a friction fit with the pin (13). The arrangement provide an articulating joint in which there is rolling contact between the planar and arcuate bearing surfaces during articulation of the first link member on the pin and thus reduces noise and wear.
    • 动力传动链具有多个通过穿过重叠板(11,12)中的对准孔的横向销(13)互连的多个重叠的内(11)和外(12)连接板。 销(13)的横截面为正方形或矩形,并且每个销上的平面中的一个被设计成抵靠限定内连接板(11)中的孔的一部分的弓形支承表面(17)。 外链板(12)具有与销(13)摩擦配合的方形或矩形孔(16a)。 该装置提供了铰接接头,其中在第一连杆构件在销上铰接期间在平面支承表面与弓形支承表面之间存在滚动接触,并且因此降低了噪音和磨损。
    • 59. 发明授权
    • A CHAIN
    • EP1144298B1
    • 2003-09-17
    • EP99929546.2
    • 1999-07-02
    • RENOLD PLC
    • VARNAM, Steven, M.RAGNITZ, DetlefCHRISTMAS, Michael, Charles
    • B66F9/00
    • B66F9/08F16G13/06F16G13/08
    • A chain such as that used in a fork lift truck carriage lifting mechanism has a plurality of interleaved link assemblies each having a pair of outer link plates and a plurality of intermediate link plates. The outer link plate has a strength less than that of any intermediate link plate when measured in an unassembled state. The reduced strength may be achieved by a reduction in thickness or head area of the link plate. The outer link plates may have a stiffness of 60 % to 90 % of the average stiffness across the chain and a first group of intermediate link plates of certain chain configurations have a stiffness of 70 % to 90 % of the average stiffness of the chain. The invention provides for a chain in which the load is more evenly shared between link plates and allows a single composite chain to be replaced by two smaller chains without loss of load capacity.
    • 诸如在叉式起重车车厢升降机构中使用的链条具有多个交错的链接组件,每个链接组件具有一对外链接板和多个中间链接板。 当在未组装状态下测量时,外链板的强度小于任何中间链板的强度。 减小的强度可以通过减小连接板的厚度或头部面积来实现。 外链板可以具有整个链条平均刚度的60%至90%的刚度,并且某些链构型的第一组中链板具有链条平均刚度的70%至90%的刚度。 本发明提供了一种链条,其中负载在链板之间更均匀地共享并且允许单个复合链条被两个较小链条替换而不损失负载能力。