| 摘要 |
An engine starter comprises a DC motor having a hollow armature rotation shaft, a drive force transmitting device for transmitting a drive force generated by the DC motor, the drive force transmitting device includes a planetary gear speed reducer connected to the armature rotation shaft axially slidably received in a hollow portion of the armature rotation shaft, the output rotation shaft having a helical spline portion engaged with a helical spline portion of the overrunning clutch device, a pinion mounted on a front end of the output rotation shaft to engage a ring gear of an engine and spring device, provided adjacent to a side face of said pinion, for urging said pinion forwardly. |
