Transmission shaft assembly

A driveshaft assembly includes a joint assembly having a first joint member, a second joint member, and one or more third joint members drivingly connecting the first joint member and the second joint member. At least a portion of the first shaft is drivingly connected to the second joint member. First and second diameter-enlarged portions having a wall portion that connects the first diameter-enlarged portion to the second diameter-enlarged portion extend circumferentially from at least a portion of an outer surface of the second end of the first shaft. The second shaft is drivingly connected to the second diameter increasing portion of the first shaft. During an impact condition, a force of a magnitude is applied to the wall portion until it breaks, and at least a portion of the first shaft and/or the joint assembly translates into the hollow portion of the second shaft. 一种传动轴组件，该传动轴组件包括接头组件，该接头组件具有第一接头构件、第二接头构件、以及驱动地连接所述第一接头构件和所述第二接头构件的一个或多个第三接头构件。第一轴的至少一部分驱动地连接至第二接头构件。具有壁部分的第一直径增大部分和第二直径增大部分从第一轴的第二端部的外表面的