公开(公告)号：US4148498A

公开(公告)日：1979-04-10

申请号：US842626

申请日：1977-10-17

Applicant: Thomas A. Taylor, Jr.

Inventor： Thomas A. Taylor, Jr.

IPC: B60D1/46 ,  B60G11/36 ,  B60D1/18

CPC classification number: B60D1/465 ,  B60G11/36

Abstract: Improvements in trailer hitch apparatus of the type used in heavy hauling, particularly for the transport of mobile home structures. The apparatus includes hydraulically elongatable tongue structure with height adjustable connector ball assembly as supported from the main rear truck frame structure; the apparatus is utilized in combination with a leaf-coil rear wheel spring structure that provides primary truck suspension. The trailer hitch is operable to support its towed structure in any of the open or closed elongated positions in order to better enable certain vehicle maneuvers, achieve optimum handling in emergency situations, and provide a more rugged, yet smoother riding connection to the towing vehicle.

Abstract translation: 用于重型拖车类型的拖车牵引装置的改进，特别是用于移动式家庭结构的运输。 该装置包括具有高度可调的连接器球组件的液压可伸长的榫舌结构，从主后架车架结构支撑; 该装置与提供初级卡车悬挂的叶卷式后轮弹簧结构组合使用。 挂车挂钩可操作以在任何打开或关闭的细长位置支撑其拖曳结构，以便更好地实现某些车辆操纵，在紧急情况下实现最佳操纵，并提供与拖曳车辆更坚固，更平滑的骑行连接。