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公开(公告)号:US06371504B1
公开(公告)日:2002-04-16
申请号:US09647516
申请日:2000-09-29
IPC分类号: B62D5308
CPC分类号: B62D53/0885
摘要: Fifth wheels are used to establish an articulated connection between a truck tractor and a semi-trailer. They consist of a plate (1) which is attached to the truck tractor and generally has at least one arched slideway lining (4a,4b) acting as a bearing surface and fitting into corresponding recesses of the fifth wheel plate (1) where it is fastened. According to the invention, fastening is provided in the form of a positive fit connection, whereby the lower part of the slideway lining (4a,b) and the upper part of the plate (1) have joining elements (6,8) to ensure a rotationally locked positive fit, thus enabling thermal dilation to occur in the fifth wheel plate (1). Preferably, the positive fitting joining elements for the lower side of the slideway lining (4a,b) are configured as ribs (6) extending radially outwards from a virtual center point (7) and the positive fitting joining elements for the upper side of the fifth wheel plate (1) are configured as complementary grooves (6). Fastening elements such as screws or snap-in connections make sure that the fit remains positive.
摘要翻译: 第五轮用于建立卡车拖拉机和半挂车之间的铰接连接。 它们由连接在卡车拖拉机上的板(1)组成,并且通常具有至少一个用作支承表面的拱形滑道衬里(4a,4b),并装配到第五轮板(1)的相应凹槽中 紧固。 根据本发明,紧固以正配合连接的形式提供,由此滑道衬里(4a,b)的下部和板(1)的上部具有接合元件(6,8)以确保 旋转锁定的正配合,从而能够在第五轮板(1)中发生热膨胀。 优选地,用于滑道衬里(4a,b)的下侧的正配合接合元件被构造为从虚拟中心点(7)径向向外延伸的肋(6),并且用于上侧的正配合接合元件 第五轮板(1)构成为互补槽(6)。 紧固元件(如螺钉或卡入式连接)确保配合保持正极。