PROBLEM TO BE SOLVED: To provide a structure capable of preventing occurrence of creep deformation and stabilizing twist rigidity of a torque transmission joint at a segment to be held constituting a shock buffer member.SOLUTION: A shock buffer member 18a is constituted by an arrangement in which an inner shock buffer piece 31 made of material easy to resiliently deform is held at both axial sides by a pair of outer shock buffer pieces 32 made of material that is more difficult to resiliently deform than the inner shock buffer piece 31. Outer pieces 38a, 38b to be held constituting the outer shock buffer pieces 32 are provided with fitted protrusions 44a, 44b protruding in an axial direction, and these fitted protrusions 44a, 44b are lightly press-fitted into fitting holes 45a, 45b formed at inner pieces 36a, 36b to be held constituting the inner shock buffer piece.
【課題】緩衝部材を構成する被挟持部に、クリープ変形が生じる事を防止すると共に、トルク伝達用継手の捩り剛性を安定させられる構造を実現する。【解決手段】緩衝部材18aを、弾性変形し易い材料製の内側緩衝片31を、この内側緩衝片31よりも弾性変形しにくい材料から造られた1対の外側緩衝片32により、軸方向両側から挟持して構成する。この外側緩衝片32を構成する外側被挟持片38a、38bに、軸方向に突出する嵌合凸部44a、44bを設け、これら嵌合凸部44a、44bを、内側緩衝片を構成する内側被挟持片36a、36bに形成された嵌合孔45a、45bに軽圧入する。【選択図】図4
TORQUE TRANSMISSION JOINT AND ELECTRIC POWER STEERING DEVICE
トルク伝達用継手及び電動式パワーステアリング装置
2015-11-12
Patent
Electronic Resource
Japanese
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