公开(公告)号：US3863956A

公开(公告)日：1975-02-04

申请号：US44660074

申请日：1974-02-28

申请人： SCOTT & FETZER CO

发明人： KHAN SHAHID R

IPC分类号： B60D1/50 ,  B60R19/26 ,  B60D3/00

CPC分类号： B60D1/243 ,  B60D1/50 ,  B60R19/26

摘要： A shock absorbing bumper unit for dampening and cushioning the loads applied to a motor vehicle by a towed trailer is provided. A trailer-hitch ball or similar towing connector member is fixed to the bumper which is connected to the motor vehicle frame for resilient, relative movement with respect thereto by a pair of telescoping bracket assemblies. Each of the bracket assemblies includes a female bracket element fixed to the frame and an associated, reciprocably movable male bracket element extending therefrom for supporting the bumper. Draw rods tie the associated bracket elements to one another, and the reciprocable movement of the male bracket elements together with the supported bumper is resisted by pairs of resiliently compressible sleeves fitted over each of the draw rods and entrapped within the bracket assemblies.

摘要翻译： 提供一种缓冲缓冲单元，用于通过拖曳拖车缓冲和缓冲施加到机动车辆的负载。 挂车挂钩或类似的牵引连接器构件固定到保险杠，该保险杠连接到机动车辆框架，用于通过一对伸缩支架组件相对于其相对运动。 每个支架组件包括固定到框架的阴托架元件和从其延伸的相关联的可往复运动的阳托架元件，用于支撑保险杠。 拉杆将相关联的支架元件彼此连接，并且阳托架元件与支撑的保险杠一起的往复运动通过装配在每个拉杆上并被夹在支架组件内的可弹性压缩的套筒抵抗。