公开(公告)号：US5605353A

公开(公告)日：1997-02-25

申请号：US513161

申请日：1995-08-09

申请人： Stephen P. Moss ,  John C. Johnson ,  Dilip M. Bhalsod ,  Craig W. Stumpf

发明人： Stephen P. Moss ,  John C. Johnson ,  Dilip M. Bhalsod ,  Craig W. Stumpf

IPC分类号： B62D21/09 ,  B62D21/15 ,  B62D27/06

CPC分类号： B62D21/155 ,  B62D21/09 ,  B62D27/065

摘要： According to the invention, a vehicle chassis includes first and second longitudinal extending side rails which are laterally spaced apart. A cross member extends transversely between the first and second side rails and has bolt holes therein. A longitudinally extending slotted aperture is provided in each side rail and registers with the bolt holes of the cross member. Each of the side rails has a cage member attached thereto and overlying aligned the slotted aperture. Each cage member has a longitudinally extending slotted aperture registering with the slotted aperture of the side rail and each has a nut captured therein for longitudinal movement of the nut within the cage member along the slotted aperture. A bolt is installed through the cross member bolt hole, through the slotted aperture of the side rail, and into the nut to attach the cross member and the side rail. Impact force applied against the cross member induces forced longitudinal movement of the cross member relative to the side rail as permitted by longitudinal movement of the bolt along the slotted aperture. At least one of the slotted apertures is constricted by a metal web or other constriction which normally blocks longitudinal movement of the bolt and then yields so that the relative longitudinal movement of the bolt causes yielding of the metal to absorb energy.

摘要翻译： 根据本发明，车辆底盘包括横向间隔开的第一和第二纵向延伸的侧轨。 横向构件在第一和第二侧轨之间横向延伸并且在其中具有螺栓孔。 在每个侧轨上提供纵向延伸的开槽孔，并与横梁的螺栓孔对准。 每个侧轨具有附接到其上的保持架构件，并且上方对准开槽孔。 每个笼构件具有与侧轨的开槽孔对准的纵向延伸的开槽孔，并且每个具有一个捕获在其中的螺母，用于沿着开槽孔沿着保持构件内的螺母的纵向移动。 螺栓通过横梁螺栓孔穿过侧轨的开槽孔安装到螺母中，以安装横梁和侧轨。 施加在横向构件上的冲击力导致横向构件相对于侧轨的强制纵向移动，如沿着开槽孔的螺栓的纵向移动允许的。 开槽孔中的至少一个由金属腹板或其他收缩部收缩，通常阻止螺栓的纵向移动，然后产生使得螺栓的相对纵向运动导致金属的屈服以吸收能量。