| 摘要 |
A cylindrical buckling prevention member 37 is fitted on a spring shaft portion 36 of a torsion bar 14a, and an outer peripheral surface of the buckling prevention member 37 is positioned close to or in contact with an inner peripheral surface of a hollow output shaft 13a. Accordingly, when one of a pair of coupling shaft portions, which are axially end portions of the torsion bar, to be coupled to a coupling hole of a counter-shaft later is press-fitted into the coupling hole of the counter-shaft, the spring shaft portion of the torsion bar can be prevented from buckling. |
