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公开(公告)号：US5865458A
公开(公告)日：1999-02-02
申请号：US771106
申请日：1996-12-20
CPC分类号： B62D53/08
摘要： A reduced weight fifth wheel generally mountable on a tractor for coupling between a tractor and a trailer, which fifth wheel has the approximately the same bearing surface area, a more continuous surface area by elimination of a lever-bar pin port in the bearing surface, thinner support ribs and smaller fillets, a shorter longitudinal length with a wider kingpin receiving slot for receipt of a trailer kingpin, with a locking-jaw mechanism having a redesigned lever-bar pin and pin-receiving port to enable reduction of the weight and to enhance production casting practices.
摘要翻译： 减重重量的第五轮通常可安装在拖拉机上用于联接在拖拉机和拖车之间，该第五轮具有大致相同的承载表面积，通过消除支承表面中的杠杆杆销端口而具有更连续的表面积， 更薄的支撑肋和更小的圆角，更短的纵向长度，具有用于接收拖车主销的较宽的主销接收槽，具有重新设计的杠杆杆销和销接收端口的锁定爪机构能够减轻重量，并且 增强生产铸造实践。
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公开(公告)号：US5524551A
公开(公告)日：1996-06-11
申请号：US294559
申请日：1994-08-23
摘要： A variable spring group for a railcar wheel truck assembly, which spring group has independent variable rate control springs for biasing snubber assemblies of a bolster in the wheel truck assembly, with the spring group having a first linear spring rate at an empty-railcar condition and a second linear spring rate at a loaded railcar condition that is at least five times as great as the empty-car spring rate, and the control springs are variable rate springs with a first and empty-railcar rate and a second and loaded-railcar spring rate, which is about twice the empty car control spring rate.
摘要翻译： 一种用于轨道车辆车载组件的可变弹簧组，该弹簧组具有用于偏置车轮车辆组件中的摇枕的缓冲组件的独立变速控制弹簧，弹簧组在空轨道条件下具有第一线性弹簧刚度， 在负载轨道车辆状态下的第二线性弹簧速率是空载弹簧刚度的至少五倍，并且控制弹簧是具有第一和空轨道车速率的可变速率弹簧，以及第二和负载轨道车辆弹簧 率是空车控制弹簧的两倍左右。
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