A steering shaft according to an aspect of the present invention includes an upper shaft, a lower shaft, and a seal cap. The seal cap includes a seal which comes into close contact with an inner peripheral surface of the upper shaft and a closure which bulges upward with respect to the seal. The closure is plastically deformed downward, and thus, the seal cap is held in an upper end opening portion in a state where the seal is pressed against the inner peripheral surface of the upper shaft.
有关本发明的技术方案的转向轴杆具备上轴杆、下轴杆和密封帽。密封帽具备与上轴杆的内周面密接的密封部、以及相对于密封部向上方隆起的闭塞部。在通过闭塞部被向下方塑性变形而密封部被推压在上轴杆的内周面的状态下,密封帽被保持在上端开口部内。
STEERING SHAFT AND METHOD OF MANUFACTURING STEERING SHAFT
转向轴杆及转向轴杆的制造方法
2020-10-09
Patent
Electronic Resource
Chinese
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