To provide a steering shaft characterized in that a resin layer formed on an inner shaft or outer shaft has a shorter axial length.SOLUTION: A steering shaft includes an inner shaft including a first teeth part which has plural first teeth lined in a circumferential direction on a periphery, and a first shaft part extending in one side of an axial direction of a center axis, an outer shaft including a second teeth part which has plural second teeth lined in a circumferential direction on an internal surface and is disposed on the peripheral side of the first teeth part, and a second shaft part extending from the second teeth part on the other side of the axial direction, a resin layer interposed between part of the axial direction of the first teeth part and part of the axial direction of the second teeth part, and a cylindrical bushing attached to an end on the one side of the axial direction of the outer shaft. The distal end on the one side of the axial direction of the bushing is in contact with the periphery of a first region of the first teeth part located on the one side of the axis direction beyond the resin layer.SELECTED DRAWING: Figure 7
【課題】インナーシャフトまたはアウターシャフトに設けられる樹脂層の軸方向長さが、より小さいステアリングシャフトを提供すること。【解決手段】ステアリングシャフトは、外周に周方向に沿って複数の第1歯が並ぶ第1歯部と、第1歯部から、中心軸の軸方向の一方側に延びる第1軸部と、を有するインナーシャフトと、内周に周方向に沿って複数の第2歯が並び、且つ、第1歯部の外周側に配置される第2歯部と、第2歯部から軸方向の他方側に延びる第2軸部と、を有するアウターシャフトと、第1歯部の軸方向の一部と第2歯部の軸方向の一部との間に配置される樹脂層と、アウターシャフトの軸方向の一方側の端部に取り付けられる筒状のブッシュと、を備え、ブッシュにおける軸方向の一方側の先端は、第1歯部において樹脂層よりも軸方向の一方側に位置する第1部位の外周に接する。【選択図】図7
STEERING SHAFT
ステアリングシャフト
2022-12-02
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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