| 摘要 |
A stationary jacket is fixed to a vehicle body and a sliding jacket is axially slidably received in the stationary jacket. A steering shaft includes a first shaft part which is axially movable together with the sliding jacket and connected to a steering wheel and a second shaft part which is rotatable together with the first shaft part while being suppressed from moving in an axial direction. An opening is formed in the stationary jacket. An electric drive unit is fixed to an outer side of the stationary jacket. The drive unit has a threaded output shaft. A nut block is operatively engaged with the threaded output shaft. A binding bracket extends between the sliding jacket and the nut block through the opening of the stationary jacket. The binding bracket includes a round gripping portion which is disposed on the sliding jacket and two gripping arms which put therebetween the nut block. A tightening device applies a pressing force to the binding bracket to allow the same to tightly grasp the sliding jacket at the round gripping portion and the nut block at the two gripping arms.
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