| 摘要 |
A sleeve is fitted in a spool so as to be arranged coaxially with the spool. A fit-insertion hole including plural female splines is formed on a cylindrical inner side of the sleeve coaxially with an axial line of the sleeve. A fit-insertion portion, which is fit-inserted in the fit-insertion hole, of a sub torsion shaft is coaxial with an axial line of the sub torsion shaft and provided with plural male splines formed on an outer peripheral side of the fit-insertion portion. As a result of rotational displacement of the sleeve about the axial line thereof and regulation of rotation of the sub torsion shaft, so an axial center of the fit-insertion portion is made to coincide with an axial center of the fit-insertion hole, a fit-insertion portion side of the sub torsion shaft is fixed by a fixing mechanism with respect to the sleeve. |
