Front suspension arm mounting arrangement
    2.
    发明授权
    Front suspension arm mounting arrangement 失效
    前悬架臂安装布置

    公开(公告)号:US5601304A

    公开(公告)日:1997-02-11

    申请号:US574663

    申请日:1995-12-19

    摘要: An arrangement for swingably supporting a lower suspension control arm on a vehicle frame member includes a front clevis fitting pivot bolt for the arm front pivot bushing assembly and a rear upstanding housing formed with a cavity for receiving a generally oval sectioned elastomer rear pivot bushing. The housing defines an undersurface having a cavity access opening from which its opposed side faces extend upward ending in a half-circle shaped ceiling. An aft projecting arm portion terminates in an integral stem, which extends through an elliptical sectioned axial passage in the rear bushing, wherein the bushing is retained on the stem after being stretched-over an integral nub on the stem's distal end. The bushing is configured for reception in the cavity, after which side flanges of a bushing retainer are attached by threaded fasteners to the housing undersurface. Upon the fasteners being tightened, the retainer, which has a body portion conforming to the remaining lower portion of the bushing, pre-compresses the bushing into the cavity such that the bushing resiliently absorbs stem loads transmitted from the arm. The one-piece cast arm has a lateral arm portion front loop close machined bore, into which an outer steel sleeve of the front bushing assembly is press-fit in a forward direction to a specified distance relative to a cast rear face of the stem collar. This arrangement allows the ends of the front arm portion to remain "as cast" while achieving close tolerance positioning of the front bushing assembly relative to the vehicle frame.

    摘要翻译: 用于在车辆框架构件上可摆动地支撑下悬架控制臂的装置包括用于臂前枢轴衬套组件的前U形夹连接枢转螺栓和形成有用于容纳大致椭圆形切片的弹性体后枢轴衬套的空腔的后直立壳体。 壳体限定了具有空腔进入开口的下表面,其相对的侧面从该凹槽向上延伸,终止于半圆形的天花板。 后突出臂部分终止于整体的杆,其延伸穿过后套管中的椭圆形截面的轴向通道,其中衬套在被拉伸在杆的远端上的整体结节之后保持在杆上。 衬套被构造成用于在空腔中接收,之后衬套保持器的侧凸缘通过螺纹紧固件附接到壳体下表面。 在紧固件被紧固时,具有与衬套的其余下部相一致的主体部分的保持器将衬套预先压缩到空腔中,使得衬套弹性地吸收从臂传递的杆负载。 一体式铸臂具有侧臂部分前环闭合机加工孔,前套管组件的外钢套筒向前压配合到相对于杆套环的铸造后表面到指定距离的孔中 。 这种布置允许前臂部分的端部保持“铸造”,同时实现前衬套组件相对于车架的紧公差定位。