Dual hardness bonded direct fixation fastener
    1.
    发明授权
    Dual hardness bonded direct fixation fastener 有权
    双硬度粘合直接固定紧固件

    公开(公告)号:US09004372B1

    公开(公告)日:2015-04-14

    申请号:US13597477

    申请日:2012-08-29

    CPC分类号: E01B9/62

    摘要: A bonded, direct fixation fastener as supportive structure for a rail on a railroad tie or bed comprising: a rail plate, wherein the rail plate has a generally horizontal center portion having a lower face and an upper face and defining a rail plate horizontal plane, and wherein the rail plate center portion extends at a first angle from opposing sides as rail plate tongues above the rail plate horizontal plane, the rail plate having a rail securing device; a bed plate comprising a generally horizontal center portion, an upper bed plate face defining a bed plate horizontal plane, and a pair of opposing bed plate tongues extending from opposing sides of the bed plate horizontal center portion disposed at a second angle above the bed plate horizontal plane; a horizontal elastomeric portion of relatively lower durometer hardness encapsulating at least a portion of the bed plate and at least a portion of the rail plate; and vertical elastomeric portions of relatively higher durometer hardness encapsulating at least a portion of each bed plate tongue and at least a portion of each rail plate tongue, and surrounding the upper face of the rail plate; and wherein each vertical elastomeric portion is physically continuous with the horizontal elastomeric portion.

    摘要翻译: 一种粘结的直接固定紧固件,作为铁路系带或床上的轨道的支撑结构,包括:轨道板,其中轨道板具有大致水平的中心部分,具有下表面和上表面并限定轨板水平面, 并且其中,所述轨道板中心部分在轨道板舌片位于所述轨道板水平面上方时以相对侧为第一角度延伸,所述轨道板具有轨道固定装置; 包括大致水平的中心部分的床板,限定床板水平面的上床板面和从床板水平中心部分的相对侧延伸的一对相对的床板舌片,其以第二角度设置在床板上方 水平面 相对较低硬度的硬度的水平弹性体部分,其包封所述床板的至少一部分和所述轨板的至少一部分; 以及垂直弹性体部分,其具有相对较高硬度的硬度,其包封每个床板舌片的至少一部分和每个导轨板舌的至少一部分,并围绕轨板的上表面; 并且其中每个垂直弹性体部分与水平弹性体部分物理连续。