To realize a structure of an intermediate shaft that easily secures an extension/contraction stroke, and can reduce manufacturing cost.SOLUTION: An intermediate shaft 1 comprises a female shaft 2, a first male shaft 3a, a second male shaft 3b, and yokes 19a and 19b. The female shaft 2 is constituted in a cylindrical shape in which end parts on both sides in an axial direction are opened, comprises a first female spline part 6a in one side part in the axial direction of an inner peripheral surface, and comprises a second female spline part 6b in the other side part in the axial direction of the inner peripheral surface. The first male shaft 3a comprises a first male spline part 10a spline-engaged with the first female spline part 6a, in an outer peripheral surface of the other side part in the axial direction. The second male shaft 3b comprises a second male spline part 10b spline-engaged with the second female spline part 6b, in an outer peripheral surface of one side part in the axial direction. The yokes 19a and 19b are fixed to an end part on one side in the axial direction of the first male shaft 3a and an end part on the other side in the axial direction of the second male shaft 3b. The first male shaft 3a and the second male shaft 3b have the same specifications.SELECTED DRAWING: Figure 1
【課題】伸縮ストロークを確保するのが容易で、しかも製造コストを抑えられる中間シャフトの構造を実現する。【解決手段】中間シャフト1は、雌軸2と、第1雄軸3aと、第2雄軸3bと、ヨーク19a、19bとを備える。雌軸2は、軸方向両側の端部が開口した筒状に構成され、内周面の軸方向一方側部に第1雌スプライン部6aを有し、かつ、内周面の軸方向他方側部に第2雌スプライン部6bを有する。第1雄軸3aは、軸方向他方側部の外周面に、第1雌スプライン部6aにスプライン係合させた第1雄スプライン部10aを有する。第2雄軸3bは、軸方向一方側部の外周面に、第2雌スプライン部6bにスプライン係合させた第2雄スプライン部10bを有する。ヨーク19a、19bは、第1雄軸3aの軸方向一方側の端部と、第2雄軸3bの軸方向他方側の端部とに固定されている。第1雄軸3aと第2雄軸3bとは、同一の仕様を有する。【選択図】図1
INTERMEDIATE SHAFT AND METHOD FOR MANUFACTURING THE SAME
中間シャフト及びその製造方法
2021-05-20
Patent
Electronic Resource
Japanese
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