公开(公告)号：US06554310B2

公开(公告)日：2003-04-29

申请号：US09920959

申请日：2001-08-03

申请人： Pierre Babin

发明人： Pierre Babin

IPC分类号： B62D5306

CPC分类号： B62D53/0885

摘要： A fifth wheel for coupling a tractor to a trailer carrying a kingpin. The fifth wheel comprises a mounting structure adapted to be mounted to the tractor and a fifth wheel plate mounted to the mounting structure and a top bearing surface rotateable relative to the mounting structure about an axis normal to the top bearing surface in order to minimize the friction between the top bearing surface of the fifth wheel plate and the trailer.

摘要翻译： 用于将拖拉机连接到承载主销的拖车的第五轮。 第五轮包括适于安装到拖拉机的安装结构和安装到安装结构的第五轮板和相对于安装结构围绕垂直于顶部支承表面的轴线可旋转的顶部支承表面，以便最小化摩擦 在第五轮板的顶部支承表面和拖车之间。